Abstract: Disclosed is a negative pressure suction-based fixing device comprising a housing, a suction and holding member, a negative pressure creating assembly, a solar panel and a battery; wherein, the housing may have an accommodating cavity thereinside; the suction and holding member may be suctioned onto a suction surface; an end of the suction and holding member away from the housing may be provided with a suction cavity that is in communication with the accommodating cavity; the suction cavity may cooperate with the suction surface to form an enclosed space; the negative pressure creating assembly may be configured to generate negative pressure in the accommodating cavity to create negative pressure in the enclosed space; the solar panel may be disposed on the housing. In this way, the negative pressure suction-based fixing device can continuously supply power to the battery through the solar panel.

Abstract: Disclosed is a negative pressure suction-based fixing device comprising a housing, a suction and holding member, a negative pressure creating assembly, a solar panel and a battery; wherein, the housing may have an accommodating cavity thereinside; the suction and holding member may be suctioned onto a suction surface; an end of the suction and holding member away from the housing may be provided with a suction cavity that is in communication with the accommodating cavity; the suction cavity may cooperate with the suction surface to form an enclosed space; the negative pressure creating assembly may be configured to generate negative pressure in the accommodating cavity to create negative pressure in the enclosed space; the solar panel may be disposed on the housing. In this way, the negative pressure suction-based fixing device can continuously supply power to the battery through the solar panel.

Abstract: Disclosed is a negative pressure suction-based fixing device comprising a housing, a suction and holding member, a negative pressure creating assembly and a sealing member. The housing has an accommodating cavity thereinside. The suction and holding member has an abutting and holding surface recessed to form a suction cavity communicated with the accommodating cavity. The abutting and holding surface has a mounting structure connected to the sealing member, so that the sealing member is arranged on the abutting and holding surface for abutting against the suction surface. The sealing member can be elastically deformed to fit with the suction surface so as form an enclosed space together with the cooperation of the suction cavity and the suction surface. In this way, it is difficult for the negative pressure suction-based fixing device to fall off from a rough surface.

Abstract: The present invention provides an aromatherapy device, the aromatherapy device is installed in an aromatherapy placement seat, the aromatherapy device comprises a supporting device, and the supporting device comprises an aromatherapy installation position, a shell and a movable limiting piece; the aromatherapy installation position is configured to install an aromatherapy volatile piece; the limiting piece has a first state and a second state, when the limiting piece is in the first state, the limiting piece protrudes from the shell to be abutted against the corresponding aromatherapy placement seat, to limit shaking of the aromatherapy device; and when the limiting piece is in the second state, the limiting piece is retracted to a position that does not protrude from the shell, such that an aromatherapy machine is detached from the aromatherapy placement seat.

Abstract: A film laminating device is configured to attach a protective film on an electronic device. A top cover assembly comprising a protective film and a top cover is provided thereof, and the protective film comprises a protective layer and a release layer with a handle. A base is provided with a limit slot configured to place the electronic device, and when the top cover assembly is placed on a support table of the base, the side, deviating from the top cover, of the protective film may be in contact with the electronic device. The release layer is removed through pulling the handle, one end of the protective layer is in linear contact with a screen of the electronic device, the top cover is then bent upwards to be separated from the protective layer, the protective layer is gradually adsorbed on the screen according to its own gravity.

Abstract: A holder comprises a housing, a first clamping arm, a second clamping arm, a first elastic member and a second elastic member. The bottom of the housing is provided with a supporting arm. The first clamping arm is movably mounted in the housing and extends from one side of the housing to form a first clamping part and extends from the other side of the housing to form a first pressing part. The second clamping arm is arranged similarly, to form a second clamping part and a second pressing part; and the second clamping part is opposite to the first clamping part. The first elastic member is mounted in the housing to exert an elastic force towards the second clamping arm on the first clamping arm. The second elastic member is mounted in the housing to exert an elastic force towards the first clamping arm on the second clamping arm.