CN218123645U - Battery compartment lamp shade locking structure and unmanned aerial vehicle - Google Patents

Battery compartment lamp shade locking structure and unmanned aerial vehicle Download PDF

Info

Publication number
CN218123645U
CN218123645U CN202222304150.4U CN202222304150U CN218123645U CN 218123645 U CN218123645 U CN 218123645U CN 202222304150 U CN202222304150 U CN 202222304150U CN 218123645 U CN218123645 U CN 218123645U
Authority
CN
China
Prior art keywords
hook
pressing
locking
battery compartment
lamp shade
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202222304150.4U
Other languages
Chinese (zh)
Inventor
戴佳伟
邓江华
邓涛
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shenzhen Damoda Intelligent Control Technology Co ltd
Original Assignee
Shenzhen Damoda Intelligent Control Technology Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shenzhen Damoda Intelligent Control Technology Co ltd filed Critical Shenzhen Damoda Intelligent Control Technology Co ltd
Priority to CN202222304150.4U priority Critical patent/CN218123645U/en
Application granted granted Critical
Publication of CN218123645U publication Critical patent/CN218123645U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries

Landscapes

  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

The utility model discloses a battery compartment lamp shade locking structure and unmanned aerial vehicle, this battery compartment lamp shade locking structure includes: the pressing locking device comprises a machine body, a first mounting cavity and a pressing locking component, wherein one side of the first mounting cavity is provided with an opening; the lampshade is rotatably connected with the machine body, the lampshade has a closed state covering the opening when rotating around the machine body and an open state when opening the opening, and the lampshade is provided with a hook; the pressing locking component has a locking state which is locked with the hook in the closing state and an unlocking state which is separated from the hook in the closing state when the pressing locking component is pressed. The utility model discloses a lamp shade forms the battery compartment of battery with the first installation cavity of organism, makes the battery built-in and the inside of organism, can be used for light-emitting structure with the surface of lamp shade, and the lamp shade has increaseed the luminous area of the outside light-emitting structure of unmanned aerial vehicle, has improved unmanned aerial vehicle's luminous effect.

Description

Battery compartment lamp shade locking structure and unmanned aerial vehicle
Technical Field
The utility model relates to an unmanned air vehicle technique field especially relates to a battery compartment lamp shade locking structure and unmanned aerial vehicle.
Background
In the existing unmanned aerial vehicle design, most of the unmanned aerial vehicle adopts a semi-closed battery installation mode for convenience and simplicity, and a part of a shell of a battery is used as an appearance surface, and the other part of the battery is inserted into a shell to supply power to the unmanned aerial vehicle; the method has the advantages of simple structure and certain weight reduction purpose by sharing the appearance surface of the battery and the shell of the airplane.
However, the surface area of a part of the light-emitting structure is occupied by the mode that the battery and the airplane shell share the appearance surface, so that the light-emitting area of the light-emitting structure is reduced, and the light-emitting effect of the unmanned aerial vehicle is limited.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a battery compartment lamp shade locking structure and unmanned aerial vehicle aims at solving the crowded surface area that accounts for some light-emitting structure of the mode of current battery and aircraft shell sharing outward appearance face, makes light-emitting structure's luminous area reduce, leads to the luminous effect of unmanned aerial vehicle to receive the problem of restriction.
An embodiment of the utility model provides a battery compartment lamp shade locking structure, include:
the pressing locking device comprises a machine body, a first mounting cavity and a pressing locking component, wherein one side of the first mounting cavity is provided with an opening;
the lampshade is rotatably connected with the machine body, the lampshade has a closed state when the lampshade rotates around the machine body and covers the opening, and an open state when the lampshade opens the opening, and the lampshade is provided with a hook;
the pressing locking component has a locking state which is locked with the hook in the closing state and an unlocking state which is separated from the hook in the closing state when the pressing locking component is pressed.
In some embodiments:
the body is provided with a rotating shaft seat, and the lampshade is rotatably arranged on the rotating shaft seat through a rotating shaft.
In some embodiments:
the pressing locking component comprises a pressing main body and a hanging buckle arranged on the pressing main body, the hanging buckle is locked with the hook in a locking state, and the hanging buckle is separated from the hook in a closing state when the pressing main body is pressed.
In some embodiments:
the second installation cavity is formed in the machine body, the pressing main body is installed in the second installation cavity, and the first end of the pressing main body extends out of the second installation cavity.
In some embodiments:
the pressing locking assembly further comprises an elastic component, and the elastic component is clamped between the pressing main body and the inner wall, far away from the first end, of the second mounting cavity.
In some embodiments:
the pressing locking assembly further comprises a guide component, the guide component is arranged at the end portion, far away from the first end, of the pressing main body, a second through hole matched with the guide component is formed in the position, corresponding to the end portion, far away from the first end, of the side wall of the second mounting cavity and the position, far away from the first end, of the guide component, and the guide component extends out of the second mounting cavity through the second through hole.
In some embodiments:
the elastic component is sleeved on the guide component.
In some embodiments:
the end part of the guide part extending out of the second mounting cavity is provided with a limiting screw so as to limit the end part of the guide part extending out of the second mounting cavity to be retracted into the second mounting cavity.
In some embodiments:
hang and detain and be provided with the direction inclined plane towards first end and deviate from the closure face of couple, the couple is provided with on the couple and deviates from the spacing face of hanging the knot towards hanging the knot direction extension on the lamp shade, and when the lamp shade switched into the closure state from the open mode, the couple application of force was on the direction inclined plane to the messenger pressed the main part compression elastomeric element, when being in the closure state, elastomeric element can reset, so that closure face and spacing face closure mutually.
The utility model also provides an unmanned aerial vehicle, include as above battery compartment lamp house locking structure.
The embodiment of the utility model discloses battery compartment lamp shade locking structure and unmanned aerial vehicle, this battery compartment lamp shade locking structure includes: the pressing and locking device comprises a machine body, a pressing and locking component and a locking component, wherein a first mounting cavity with an opening at one side is formed in the machine body; the lampshade is rotatably connected with the machine body, the lampshade has a closed state covering the opening when rotating around the machine body and an open state when opening the opening, and the lampshade is provided with a hook; the pressing locking component has a locking state which is locked with the hook in the closing state and an unlocking state which is separated from the hook when the pressing locking component is pressed in the closing state. The embodiment of the utility model provides a battery compartment of battery is formed through the first installation cavity of lamp shade and organism, makes the battery built-in and the inside of organism, can use the surface of lamp shade in the light-emitting structure, and the lamp shade has increaseed the light-emitting area of the light-emitting structure of unmanned aerial vehicle outside, has improved unmanned aerial vehicle's luminous effect; in addition, the lamp shade is provided with a hook; the pressing locking component has a locking state which is locked with the hook in the closing state and an unlocking state which is separated from the hook in the closing state when the pressing locking component is pressed, so that the battery is convenient to install, replace and overhaul.
Drawings
In order to more clearly illustrate the technical solution of the embodiments of the present invention, the drawings required to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the description below are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic structural view of a battery compartment lamp shade locking structure according to an embodiment of the present invention in a closed state;
fig. 2 is a schematic structural view of the battery compartment lamp shade locking structure according to the embodiment of the present invention in an open state;
fig. 3 is a schematic structural view of the battery compartment lamp shade locking structure according to the embodiment of the present invention when the battery compartment lamp shade locking structure is switched from the open state to the closed state;
fig. 4 is a schematic structural view of the locking structure of the battery compartment and lampshade in a closed state according to the embodiment of the present invention;
fig. 5 is a schematic structural view of the battery compartment lampshade locking structure provided by the embodiment of the present invention when the main body is pressed.
Description of reference numerals:
1. a body; 11. a rotating shaft seat; 111. a rotating shaft; 12. pressing the main body; 13. hanging and buckling; 131. a guide slope; 132. a locking surface; 14. an elastic member; 15. a guide member; 16. a limit screw;
2. a lamp shade; 21. hooking; 211. a limiting surface.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, of the embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.
It will be understood that the terms "comprises" and/or "comprising," when used in this specification and the appended claims, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
It is also to be understood that the terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the specification and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
It should be further understood that the term "and/or" as used in the specification and the appended claims refers to any and all possible combinations of one or more of the associated listed items and includes such combinations.
As shown in fig. 1-5, an embodiment of the present invention provides a battery compartment lamp cover locking structure, including:
the device comprises a machine body 1, wherein a first installation cavity with one side opening is formed in the machine body 1, and a pressing locking component is arranged on the machine body 1;
the lampshade 2 is rotatably connected with the machine body 1, the lampshade 2 has a closed state covering the opening when rotating around the machine body 1 and an open state when opening the opening, and the lampshade 2 is provided with a hook 21;
the press-lock assembly has a locked state in which it is locked to the hook 21 in the closed state and an unlocked state in which it is disengaged from the hook 21 when the press-lock assembly is pressed in the closed state.
In this embodiment, the battery compartment lamp shade locking structure includes: the device comprises a machine body 1, wherein a first installation cavity with one side opening is formed in the machine body 1, and a pressing locking component is arranged on the machine body 1; the lampshade 2 is rotatably connected with the unmanned aerial vehicle body 1, the lampshade 2 is in a closed state covering the opening when rotating around the unmanned aerial vehicle body 1 and in an open state when opening the opening, therefore, the lampshade 2 and a first mounting cavity of the unmanned aerial vehicle body 1 form a battery compartment of a battery, the battery is arranged in the unmanned aerial vehicle body 1, the outer surface of the lampshade 2 can be used as a light-emitting structure, the lampshade 2 enlarges the light-emitting area of the light-emitting structure outside the unmanned aerial vehicle, and the light-emitting effect of the unmanned aerial vehicle is improved; in addition, the lampshade 2 is provided with a hook 21; the pressing locking component has a locking state which is locked with the hook 21 in a closed state and an unlocking state which is separated from the hook 21 in a closed state when the pressing locking component is pressed, so that the installation, the replacement and the overhaul of the battery are facilitated.
In some embodiments:
the body 1 is provided with a rotating shaft seat 11, and the lampshade 2 is rotatably arranged on the rotating shaft seat 11 through a rotating shaft 111.
In this embodiment, through setting up pivot seat 11 at organism 1, with lamp shade 2 through the rotatable setting of pivot 111 on pivot seat 11, realize lamp shade 2 and organism 1's rotatable coupling, can take out pivot 111 when later maintenance dismantles, with lamp shade 2 and organism 1 separation, the installation of being convenient for is maintained.
In some embodiments:
the pressing locking component comprises a pressing main body 12 and a hanging buckle 13 arranged on the pressing main body 12, wherein the hanging buckle 13 is locked with the hook 21 in a locking state, and the hanging buckle 13 is separated from the hook 21 when the pressing main body 12 is pressed in a closed state.
In this embodiment, the pressing locking component includes a pressing main body 12 and a hanging buckle 13 arranged on the pressing main body 12, the hanging buckle 13 can be arranged on the pressing main body 12, or can be arranged in the pressing main body 12, as long as the hanging buckle 13 can be locked with or separated from the hook 21, when in a locking state, the hanging buckle 13 is locked with the hook 21, the battery is installed in the battery compartment, and the lampshade 2 covers the opening of the first installation cavity, so as to protect the battery; when pressing down main part 12 under the closed state, hang and detain 13 and get in touch 21 and break away from mutually, open lamp shade 2 and can change or maintain the battery in the first installation cavity, consequently make things convenient for the maintenance personal to change and maintain the battery.
The press locking component and the rotating shaft seat 11 can be arranged at opposite positions on the machine body 1, and the covering effect of the lampshade 2 on the first installation cavity of the machine body 1 is guaranteed.
In some embodiments:
the body 1 is provided with a second installation cavity, the pressing body 12 is installed in the second installation cavity, and the first end of the pressing body 12 extends out of the second installation cavity.
In this embodiment, set up the second installation cavity at organism 1, press main part 12 to install in the second installation cavity, the first end that will press main part 12 stretches out outside the second installation cavity, through pressing the first end of pressing main part 12, make and press main part 12 to drive to hang and detain 13 and remove, make and hang detain 13 and couple 21 and break away from mutually, realize the unblock state, open lamp shade 2 and can change or maintain the battery in the first installation cavity, consequently, make things convenient for maintenance personal to change and maintain the battery, consequently, through pressing main part 12 and realized hanging detaining 13 and couple 21's breaking away from, easy operation is swift.
In some embodiments:
the press-lock assembly further comprises a resilient member 14, the resilient member 14 being sandwiched between the press body 12 and an inner wall of the second mounting cavity remote from the first end.
In this embodiment, the pressing and locking assembly further includes an elastic member 14, the elastic member 14 is disposed between the pressing body 12 and the inner wall of the second mounting cavity far from the first end, when the pressing body 12 is pressed, the hook 13 and the hook 21 are always in a locked state by the elastic member 14, and when the pressing body 12 is pressed, the pressing body 12 compresses the elastic member 14 to drive the hook 13 to move, so that the hook 13 and the hook 21 are separated from each other.
In some embodiments:
the pressing locking assembly further comprises a guide part 15, the guide part 15 is arranged at the end portion, far away from the first end, of the pressing body 12, a second through hole matched with the guide part 15 is formed in the position, corresponding to the end portion, far away from the first end, of the side wall of the second mounting cavity and the position, far away from the first end, of the guide part 15, and the guide part 15 extends out of the second mounting cavity through the second through hole.
In this embodiment, the pressing locking assembly further includes a guiding member 15, the guiding member 15 is disposed at an end of the pressing body 12 far away from the first end, a second through hole adapted to the guiding member 15 is disposed at a position corresponding to an end of the guiding member 15 far away from the first end on a side wall of the second mounting cavity, the guiding member 15 extends out of the second mounting cavity through the second through hole, when the pressing body 12 is pressed, an outer wall of the guiding member 15 is matched with an inner wall of the second through hole to guide the guiding member 15 and the movement of the hanging buckle 13, so as to ensure accuracy of relative movement between the hanging buckle 13 and the hook 21.
In some embodiments:
the elastic member 14 is fitted over the guide member 15.
In this embodiment, the elastic component 14 is sleeved on the guiding component 15, so as to prevent the direction of the restoring force of the elastic component 14 from changing after the elastic component 14 is deformed by a force, and to guide the restoring force of the elastic component 14.
In some embodiments:
the end of the guide member 15 extending out of the second mounting cavity is provided with a limit screw 16 to limit the retraction of the end of the guide member 15 extending out of the second mounting cavity into the second mounting cavity.
In this embodiment, the end of the guide member 15 extending out of the second mounting cavity is provided with a limit screw 16 to limit the end of the guide member 15 extending out of the second mounting cavity to be retracted into the second mounting cavity, specifically, the limit head of the limit screw 16 can be set to be larger than the inner diameter of the second through hole, and the end of the guide member 15 extending out of the second mounting cavity is limited to be retracted into the second mounting cavity by the limit head, so that after the guide member 15 is separated from the second through hole, the hanging buckle 13 and the hook 21 cannot be locked, the stability of the battery compartment lamp shade locking structure is improved, and finally, the battery compartment lamp shade locking structure is kept in a locked state all the time, and under the condition of no external force intervention, there is no possibility of unlocking.
In some embodiments:
the hanging buckle 13 is provided with a guide inclined plane 131 facing the first end and a locking surface 132 departing from the hook 21, the hook 21 extends towards the hanging buckle 13 on the lampshade 2, the hook 21 is provided with a limiting surface 211 departing from the hanging buckle 13, when the lampshade 2 is switched from an open state to a closed state, the hook 21 applies force on the guide inclined plane 131 to enable the pressing main body 12 to compress the elastic part 14, and when the lampshade is in the closed state, the elastic part 14 can reset to enable the locking surface 132 to be locked with the limiting surface 211.
In this embodiment, the hanging buckle 13 is provided with a guiding inclined plane 131 facing the first end, when the lampshade 2 is switched from the open state to the closed state, the hook 21 applies force on the guiding inclined plane 131, so that the pressing body 12 compresses the elastic component 14, when the lampshade 2 is switched from the open state to the closed state, the guiding inclined plane 131 plays a role in guiding the hook 21, so that the hook 21 can be more accurately locked with the hook 21, and on the other hand, the hanging buckle 13 can drive the pressing body 12 to compress the elastic component 14 by applying force on the guiding inclined plane 131 through the hook 21; the hanging buckle 13 is provided with a locking surface 132 deviating from the hook 21, and when the lampshade 2 is switched from the open state to the closed state, and the locking surface 132 and the limiting surface 211 are located at the same position, the resilience force of the compressed elastic component 14 can force the pressing main body 12 to drive the hanging buckle 13 to move, so that the locking surface 132 and the limiting surface 211 are attached together, and the locking of the hanging buckle 13 and the hook 21 is realized.
The utility model also provides an unmanned aerial vehicle, include as above battery compartment lamp house locking structure.
It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described apparatuses, devices and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of various equivalent modifications or replacements within the technical scope of the present invention, and these modifications or replacements should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (10)

1. A battery compartment lamp shade locking structure, characterized by includes:
the pressing and locking mechanism comprises a machine body, a pressing and locking component and a locking component, wherein a first installation cavity with an opening at one side is formed in the machine body;
the lampshade is rotatably connected with the machine body, the lampshade has a closed state covering the opening when rotating around the machine body and an open state when opening the opening, and the lampshade is provided with a hook;
the pressing and locking component has a locking state which is locked with the hook in the closing state and an unlocking state which is separated from the hook when the pressing and locking component is pressed in the closing state.
2. The battery compartment light cover locking structure of claim 1, wherein:
the body is provided with a rotating shaft seat, and the lampshade is rotatably arranged on the rotating shaft seat through a rotating shaft.
3. The battery compartment light cover locking structure of claim 1, wherein:
the pressing locking component comprises a pressing main body and a hanging buckle arranged on the pressing main body, the hanging buckle is locked with the hook in the locking state, and the hanging buckle is separated from the hook in the closing state when the pressing main body is pressed.
4. The battery compartment chimney lock according to claim 3, wherein:
the machine body is provided with a second installation cavity, the pressing main body is installed in the second installation cavity, and the first end of the pressing main body extends out of the second installation cavity.
5. The battery compartment light cover locking structure of claim 4, wherein:
the pressing locking assembly further comprises an elastic component, and the elastic component is clamped between the pressing main body and the inner wall, far away from the first end, of the second installation cavity.
6. The battery compartment light cover locking structure of claim 5, wherein:
the pressing locking assembly further comprises a guide component, the guide component is arranged at the end portion, far away from the first end, of the pressing main body, a second through hole matched with the guide component is formed in the position, corresponding to the end portion, far away from the first end, of the side wall of the second mounting cavity, and the guide component extends out of the second mounting cavity through the second through hole.
7. The battery compartment light cover locking structure of claim 6, wherein:
the elastic component is sleeved on the guide component.
8. The battery compartment light cover locking structure of claim 6, wherein:
the end part of the guide part extending out of the second mounting cavity is provided with a limit screw so as to limit the retraction of the end part of the guide part extending out of the second mounting cavity into the second mounting cavity.
9. The battery compartment light cover locking structure according to any one of claims 5 to 8, wherein:
the lamp shade is characterized in that a guide inclined plane facing the first end and a locking surface facing away from the hook are arranged on the hook, the hook extends towards the direction of the hook on the lamp shade, a limit surface facing away from the hook is arranged on the hook, the lamp shade is switched from the open state to the closed state, the hook applies force to the guide inclined plane, so that the pressing main body compresses the elastic part, and when the lamp shade is in the closed state, the elastic part can reset, so that the locking surface is locked with the limit surface.
10. An unmanned aerial vehicle, its characterized in that: comprising a battery compartment light cover closure according to any of claims 1 to 9.
CN202222304150.4U 2022-08-31 2022-08-31 Battery compartment lamp shade locking structure and unmanned aerial vehicle Active CN218123645U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202222304150.4U CN218123645U (en) 2022-08-31 2022-08-31 Battery compartment lamp shade locking structure and unmanned aerial vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202222304150.4U CN218123645U (en) 2022-08-31 2022-08-31 Battery compartment lamp shade locking structure and unmanned aerial vehicle

Publications (1)

Publication Number Publication Date
CN218123645U true CN218123645U (en) 2022-12-23

Family

ID=84529332

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202222304150.4U Active CN218123645U (en) 2022-08-31 2022-08-31 Battery compartment lamp shade locking structure and unmanned aerial vehicle

Country Status (1)

Country Link
CN (1) CN218123645U (en)

Similar Documents

Publication Publication Date Title
EP1095806A3 (en) Side visor with ventilation function for car
CN218123645U (en) Battery compartment lamp shade locking structure and unmanned aerial vehicle
CN113786567B (en) Safety belt suspension device and method for transformer maintenance
CN208220436U (en) Charge cover opening mechanism
CN106672198B (en) A kind of sliding-lift hatch door
CN202937081U (en) Emergency unlocking device for partition wall of railway vehicle
CN207268115U (en) A kind of intelligent lock
CN210329496U (en) Multifunctional safety helmet
CN215772302U (en) Wiring harness buckle
CN216783868U (en) Unmanned aerial vehicle cabin for placing submachine
CN211923875U (en) Door lock assembly for vehicle and vehicle with door lock assembly
CN209457618U (en) A kind of appliance doors magnetically attractive button position limiting structure
CN111980502A (en) Vehicle emergency evacuation door lock and train thereof
CN208723181U (en) A kind of ceramic socket cover
CN219029143U (en) Fixing structure of new energy automobile charging seat electronic lock
CN220842373U (en) Car vanity mirror fixing device
CN209401495U (en) The opening assembly of boot is opened in a kind of long-range monitoring
CN214154644U (en) Monitoring camera
CN213307869U (en) Bracelet of removable cover rope
CN217214541U (en) Bidirectional pull-cord switch for monitoring running state of belt conveyor
CN215682955U (en) Intelligent control system for building walkway illumination
CN105712185A (en) Crane hook
CN212054199U (en) Vehicle emergency evacuation door lock and train thereof
CN208010108U (en) A kind of latch of sliding window
CN213442536U (en) Self-locking mechanism of rail vehicle shutter

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant