CN208487204U - A kind of dual dustproof and waterproof structure during fast insert-pull - Google Patents

A kind of dual dustproof and waterproof structure during fast insert-pull Download PDF

Info

Publication number
CN208487204U
CN208487204U CN201821056316.2U CN201821056316U CN208487204U CN 208487204 U CN208487204 U CN 208487204U CN 201821056316 U CN201821056316 U CN 201821056316U CN 208487204 U CN208487204 U CN 208487204U
Authority
CN
China
Prior art keywords
protection cylinder
jack
waterproof
water proof
rubber pad
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
CN201821056316.2U
Other languages
Chinese (zh)
Inventor
刘锐
唐亮
蒲圆圆
杨尚明
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.)
Mianyang Jinxin Norway Huantong Electronic Technology Co Ltd
Original Assignee
Mianyang Jinxin Norway Huantong Electronic 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 Mianyang Jinxin Norway Huantong Electronic Technology Co Ltd filed Critical Mianyang Jinxin Norway Huantong Electronic Technology Co Ltd
Priority to CN201821056316.2U priority Critical patent/CN208487204U/en
Application granted granted Critical
Publication of CN208487204U publication Critical patent/CN208487204U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

The utility model discloses the dual dustproof and waterproof structures during a kind of fast insert-pull, including sequentially connected level-one waterproof construction and second level waterproof construction, level-one waterproof construction includes protection cylinder, protection cylinder it is open at one end, other end closing, horizontally disposed jack one is offered on the closed end of protection cylinder, the end of protection cylinder internal receptacle one is equipped with baffle, baffle is in the power by the extreme direction that is open towards protection cylinder, it can be moved towards the direction far from one end of jack and far from one axis of jack, baffle is connected by torsional spring with protection cylinder inner wall, second level waterproof construction includes the water proof rubber pad that protection cylinder open end is arranged in, water proof rubber pad is made using rubber material, opening cruciferous is opened up on water proof rubber pad, the length of criss-cross opening and the diameter of bolt rod are identical.The latch assembly dustproof and waterproof structure of the utility model can not only guarantee bolt fast insert-pull function, while can play good waterproof and dustproof function by double sealing structure.

Description

A kind of dual dustproof and waterproof structure during fast insert-pull
Technical field
The utility model relates to a kind of latch assembly waterproof and dustproof structures, and in particular to double during a kind of fast insert-pull Weight dustproof and waterproof structure.
Background technique
It needs largely to use latch assembly in some equipment in the fields such as communication, industry, space flight, but it is many this kind of Latch assembly is only the bolt rod being inserted into equipment pin hole, is not able to satisfy sealing waterproof action, these set It is standby when use outdoors, the junction of pin hole and bolt rod be directly exposed to it is outer, rainwater be easy to along bolt rod and Gap between pin hole enters inside pin hole, to damage to some structures inside pin hole.
Utility model content
Technical problem to be solved in the utility model is that latch assembly is not able to satisfy sealing waterproof action, it is therefore intended that is mentioned For the dual dustproof and waterproof structure during a kind of fast insert-pull, it can not only guarantee bolt fast insert-pull function, pass through simultaneously Double sealing structure can play good waterproof and dustproof function.
The utility model is achieved through the following technical solutions:
A kind of dual dustproof and waterproof structure during fast insert-pull, including sequentially connected level-one waterproof construction and second level Waterproof construction, the level-one waterproof construction include horizontally disposed protection cylinder, and protection cylinder open at one end is simultaneously being set for covering to penetrate On standby pin hole lateral wall, the protection cylinder other end is closed, and offers horizontally disposed jack one on the closed end of protection cylinder, is protected The end of cylinder internal receptacle one is equipped with baffle, and baffle, can be towards far from slotting in the power by the extreme direction that is open towards protection cylinder The direction movement of one end of hole and separate one axis of jack, baffle are connected by resetting structure with protection cylinder inner wall, resetting structure Baffle can be driven to recoil to the position of original one end of jack at the end of stress, the second level waterproof construction includes that setting exists The water proof rubber pad of protection cylinder open end, water proof rubber pad are made using rubber material, offer cross on water proof rubber pad Opening, the length of criss-cross opening and the diameter of bolt rod are identical, the resetting structure use torsional spring, the axis of torsional spring with One axis of jack is vertical, and torsional spring is fixed on protection cylinder inner wall by being located at fixed pin in centre bore, two end one end of torsional spring with Baffle connection, the other end are connect with protection cylinder inner wall.
The latch assembly double sealing structure of the utility model can not only guarantee bolt fast insert-pull function, lead to simultaneously Good waterproof and dustproof function can be played by crossing double sealing structure.Protection cylinder and water proof rubber pad are mounted on equipment first Then the corresponding position of lateral wall pin hole is fixedly mounted on protection cylinder so that the alignment of water proof rubber pad is mounted at pin hole On the side wall of equipment, wherein the size of water proof rubber pad be greater than equipment pin hole diameter, the length of criss-cross opening and insert The diameter of pin rod is identical so that bolt rod can be normally through water proof rubber pad.The latch assembly structure of the utility model installs Later, bolt rod first along level from the jack one of protection cylinder end to protection cylinder inside be inserted into, when being inserted into the end of jack one It is contacted when end with baffle, bolt rod continues to move, so that baffle be pushed to move, baffle is under the connection function of torsional spring, towards inclined It is moved from one end of jack and the direction of axis, enables the end of bolt rod to pass through jack one and then reach waterproof rubber At rubber mat, baffle is in the elastic anchorage force of torsional spring and under the action of bolt rod motive force at this time, remain one end always with bolt The state of bar external wall friction contact, then in the bolt rod insertion criss-cross opening of water proof rubber pad, because water proof rubber pad is Rubber material is obtained, has good bending property and elasticity, and criss-cross opening is the waterproof using cutter in rubber material Direct mark signature on rubber pad and formed, so that the center of water proof rubber pad is divided into four pieces of rubber blocks, therefore bolt rod exists When across criss-cross opening, deformation occurs is headed into towards the direction of equipment pin hole for four pieces of rubber blocks, so that bolt rod It can smoothly be inserted into equipment pin hole, while four pieces of rubber blocks are closely pasted between the outer wall of bolt rod when deformation occurs It closes, so that the wall surface to bolt rod plays sealing function, external rainwater is avoided to drench in pin hole.Level-one waterproof construction uses Torsional spring combination baffle, which can be realized, closes jack one when being not inserted into bolt rod, plays the role of water proof and dust proof, and Plug function can not be hindered again when being inserted into bolt rod, and when extraction can reset in time, still water proof and dust proof, and second level waterproof construction can Effectively add one of insurance for first order waterproof construction, further realizes the water proof and dust proof effect of total.
By the protection cylinder of the utility model and the mutual cooperation effect of water proof rubber pad, pass through the level-one waterproof of protection cylinder Structure covers the pin hole of equipment, is exposed between outer end face and equipment bolt hole end surface to extend bolt rod Distance, i.e. " reserved " distance of protection cylinder length avoids the end face of pin hole from being directly exposed to and outer makes external rainwater straight Leaching is connect in the endface of equipment pin hole, while ensure that can after bolt rod is inserted into or is extracted for the setting of torsional spring and baffle Play the role of water proof and dust proof to equipment pin hole;Pin hole in equipment is covered by the second level waterproof construction of water proof rubber pad Lid, and the cross-shaped aperture by opening up on water proof rubber pad is passed through for bolt rod, both ensure that bolt rod normal insertion and It extracts, while good sealing function is played to the side wall of bolt rod, avoid depositing for gap between bolt rod and pin hole It is causing rainwater to flow into pin hole, is further increasing water proof and dust proof effect.The latch assembly water proof and dust proof knot of the utility model It is anti-to play sealing by pin hole of the dual waterproof construction to equipment on the basis of retaining realization fast insert-pull function for structure Water, dustproof effect, structure is simple, low in cost, practical function, the sealing waterproof suitable for latch structure in various equipment.
Further include the seal case being set in outside equipment, offer jack on the side wall of seal case, the position of jack with The open end of the aligned in position of pin hole in equipment, protection cylinder is connected with seal case lateral wall, and water proof rubber pad is coaxially connected At seal case lateral wall jack.As a whole by seal case and protection cylinder, water proof rubber pad, it further increases The water proof and dust proof seal protection of equipment is acted on;Equipment is mounted in seal case, so that the pin hole of equipment and sealing Jack on cabinet is mutually aligned perforation, is then installed again by the corresponding of water proof rubber pad, protection cylinder and seal case jack, So that bolt rod is first inserted into protection cylinder from outside seal case, passes through water proof rubber pad after passing through jack one, then lead to again Cross in the pin hole that jack enters inside seal case and then in insertion equipment, to the pin hole of bolt rod and equipment it Between play good sealing waterproof action.
The inner wall of jack one is equipped with sealing rubber layer.The leakproofness between bolt rod and the inner wall of jack one is improved, together When sealing rubber layer have elasticity, can guarantee the normal plug of bolt rod.
The inside of seal case is coaxially connected with guide pipe at jack, and one end of guide pipe is connected with jack, the other end with set Standby upper pin hole is connected.It after bolt rod is inserted into jack, is successfully inserted in the pin hole in equipment, is oriented to by guide pipe Pipe plays good guiding role to bolt rod, to realize fast insert-pull.
Storing groove is coaxially provided on lateral wall on seal case at jack, water proof rubber pad is fastened on storing groove In, protection cylinder inner opening end is arranged with the pressing plate fitted closely with water proof rubber pad, offers on pressing plate and passes through for bolt rod Jack two.Water proof rubber pad, which is fastened on, to be put in groove, can be further increased and be inserted on water proof rubber pad and seal case side wall Water proof rubber pad being pressed on tightly can be put in groove by pressing plate, avoid bolt rod by the sealed connection between hole When extraction, due to four pieces of reverse friction power between rubber block and bolt rod, cause water proof rubber pad from storing groove In fall off.
The lateral wall of protection cylinder and seal case connects edge and is coated with waterproof layer.Water be can be avoided from protection cylinder The edge connecting with seal case slowly penetrates into inside protection cylinder to easily infiltrate at equipment pin hole.
The utility model compared with prior art, has the following advantages and benefits:
1, the dual dustproof and waterproof structure during a kind of fast insert-pull of the utility model can quickly be inserted guaranteeing bolt The dual-seal function of waterproof and dustproof is played while pulling out function;
2, the dual dustproof and waterproof structure during a kind of fast insert-pull of the utility model, can using torsional spring combination baffle Realization closes jack one when being not inserted into bolt rod, energy when playing the role of water proof and dust proof, and being inserted into bolt rod Plug function is not hindered, when extraction can reset in time, still water proof and dust proof;
3, the dual dustproof and waterproof structure during a kind of fast insert-pull of the utility model passes through seal case and protection Cylinder, water proof rubber pad as a whole, further improve the water proof and dust proof seal protection effect to equipment.
Detailed description of the invention
Attached drawing described herein is used to provide to further understand the utility model embodiment, constitutes the one of the application Part does not constitute the restriction to the utility model embodiment.In the accompanying drawings:
FIG. 1 is a schematic structural view of the utility model;
Fig. 2 is the utility model level-one waterproof construction schematic diagram;
Fig. 3 is the utility model second level waterproof construction schematic diagram.
Label and corresponding parts title in attached drawing:
1- level-one waterproof construction, 2- second level waterproof construction, 3- water proof rubber pad, 4- opening, 5- protection cylinder, 6- jack one, 7- baffle, 8- torsional spring, 9- seal case, 10- jack, 11- pressing plate.
Specific embodiment
For the purpose of this utility model, technical solution and advantage is more clearly understood, below with reference to embodiment and attached drawing, The utility model is described in further detail, and the exemplary embodiment and its explanation of the utility model are only used for explaining this Utility model is not intended to limit the scope of the present invention.
Embodiment 1
As shown in Figure 1, Figure 2 and Figure 3, the dual dustproof and waterproof structure during a kind of fast insert-pull of the utility model, packet Sequentially connected level-one waterproof construction 1 and second level waterproof construction 2 are included, the level-one waterproof construction 1 includes horizontally disposed protection Cylinder 5, protection cylinder 5 open at one end are simultaneously penetrated for covering in equipment pin hole lateral wall, the closing of 5 other end of protection cylinder, protection cylinder 5 Closed end on offer horizontally disposed jack 1, the end of 5 internal receptacle 1 of protection cylinder is equipped with baffle 7, baffle 7 by To towards protection cylinder 5 be open extreme direction power when, can towards far from one 6 end of jack and far from one 6 axis of jack direction transport Dynamic, baffle 7 is connected by resetting structure with 5 inner wall of protection cylinder, and resetting structure can drive baffle 7 to recoil at the end of stress The position of original one 6 end of jack, the second level waterproof construction 2 include the water proof rubber pad 3 that 5 open end of protection cylinder is arranged in, Water proof rubber pad 3 is made using rubber material, and opening 4 cruciferous is opened up on water proof rubber pad 3, criss-cross opening 4 Length is identical as the diameter of bolt rod, and the resetting structure uses torsional spring 8, and the axis of torsional spring 8 is vertical with one axis of jack, torsional spring It is fixed on protection cylinder inner wall by being located at fixed pin in centre bore, two end one end of torsional spring 8 are connect with baffle, the other end and anti- The connection of casing inner wall.
The latch assembly dustproof and waterproof structure of the utility model, can not only guarantee bolt fast insert-pull function, lead to simultaneously Good waterproof and dustproof function can be played by crossing double sealing structure.Protection cylinder and water proof rubber pad are mounted on equipment first Then the corresponding position of lateral wall pin hole is fixedly mounted on protection cylinder so that the alignment of water proof rubber pad is mounted at pin hole On the side wall of equipment, wherein the size of water proof rubber pad be greater than equipment pin hole diameter, the length of criss-cross opening and insert The diameter of pin rod is identical so that bolt rod can be normally through water proof rubber pad.The latch assembly structure of the utility model installs Later, bolt rod first along level from the jack one of protection cylinder end to protection cylinder inside be inserted into, when being inserted into the end of jack one It is contacted when end with baffle, bolt rod continues to move, so that baffle be pushed to move, baffle is under the connection function of torsional spring, towards inclined It is moved from one end of jack and the direction of axis, enables the end of bolt rod to pass through jack one and then reach waterproof rubber At rubber mat, baffle is in the elastic anchorage force of torsional spring and under the action of bolt rod motive force at this time, remain one end always with bolt The state of bar external wall friction contact, then in the bolt rod insertion criss-cross opening of water proof rubber pad, because water proof rubber pad is Rubber material is obtained, has good bending property and elasticity, and criss-cross opening is the waterproof using cutter in rubber material Direct mark signature on rubber pad and formed, so that the center of water proof rubber pad is divided into four pieces of rubber blocks, therefore bolt rod exists When across criss-cross opening, deformation occurs is headed into towards the direction of equipment pin hole for four pieces of rubber blocks, so that bolt rod It can smoothly be inserted into equipment pin hole, while four pieces of rubber blocks are closely pasted between the outer wall of bolt rod when deformation occurs It closes, so that the wall surface to bolt rod plays sealing function, external rainwater is avoided to drench in pin hole.Level-one waterproof construction uses Torsional spring combination baffle, which can be realized, closes jack one when being not inserted into bolt rod, plays the role of water proof and dust proof, and Plug function can not be hindered again when being inserted into bolt rod, and when extraction can reset in time, still water proof and dust proof, and second level waterproof construction can Effectively add one of insurance for first order waterproof construction, further realizes the water proof and dust proof effect of total.
By the protection cylinder of the utility model and the mutual cooperation effect of water proof rubber pad, pass through the level-one waterproof of protection cylinder Structure covers the pin hole of equipment, is exposed between outer end face and equipment bolt hole end surface to extend bolt rod Distance, i.e. " reserved " distance of protection cylinder length avoids the end face of pin hole from being directly exposed to and outer makes external rainwater straight Leaching is connect in the endface of equipment pin hole, while ensure that can after bolt rod is inserted into or is extracted for the setting of torsional spring and baffle Play the role of water proof and dust proof to equipment pin hole;Pin hole in equipment is covered by the second level waterproof construction of water proof rubber pad Lid, and the cross-shaped aperture by opening up on water proof rubber pad is passed through for bolt rod, both ensure that bolt rod normal insertion and It extracts, while good sealing function is played to the side wall of bolt rod, avoid depositing for gap between bolt rod and pin hole It is causing rainwater to flow into pin hole, is further increasing water proof and dust proof effect.The latch assembly water proof and dust proof knot of the utility model It is anti-to play sealing by pin hole of the dual waterproof construction to equipment on the basis of retaining realization fast insert-pull function for structure Water, dustproof effect, structure is simple, low in cost, practical function, the sealing waterproof suitable for latch structure in various equipment.
Embodiment 2
As shown in Figure 1, on the basis of embodiment 1, it is dual dust-proof anti-during a kind of fast insert-pull of the utility model Water-bound further includes the seal case 9 being set in outside equipment, jack 10, the position of jack 10 is offered on the side wall of seal case 9 The aligned in position with pin hole in equipment is set, the open end of protection cylinder is connected with 9 lateral wall of seal case, and water proof rubber pad is coaxial It is connected at seal case lateral wall jack.
As a whole by seal case and protection cylinder, water proof rubber pad, the waterproof to equipment is further improved Dust seal protective effect;Equipment is mounted in seal case, so that the pin hole of equipment and the jack phase on seal case Mutually alignment perforation, then again by the corresponding installation of water proof rubber pad, protection cylinder and seal case jack so that bolt rod first from It is inserted into protection cylinder outside seal case, passes through water proof rubber pad after passing through jack one, then entered again by jack close It seals box house and then is inserted into the pin hole in equipment, it is good close to being played between bolt rod and the pin hole of equipment Seal waterproof action.
Preferably, the inner wall of jack one is equipped with sealing rubber layer.It improves close between bolt rod and the inner wall of jack one Feng Xing, while sealing rubber layer has elasticity, can guarantee the normal plug of bolt rod.
Preferably, the inside of seal case is coaxially connected with guide pipe at jack, and one end of guide pipe is connected with jack, another End is connected with the pin hole in equipment.After bolt rod is inserted into jack, the pin hole that is successfully inserted at by guide pipe in equipment In, guide pipe plays good guiding role to bolt rod, to realize fast insert-pull.
Preferably, storing groove is coaxially provided on the lateral wall on seal case at jack, water proof rubber pad, which is fastened on, to be set It puts in groove, protection cylinder inner opening end is arranged with the pressing plate 11 fitted closely with water proof rubber pad, is offered on pressing plate 11 for inserting The jack two that pin rod passes through.Water proof rubber pad, which is fastened on, to be put in groove, and water proof rubber pad and seal box can be further increased Water proof rubber pad being pressed on tightly can be put in groove by pressing plate, be kept away by the sealed connection between the outlet of side Exempt from bolt rod when extraction, due to four pieces of reverse friction power between rubber block and bolt rod, causes water proof rubber pad It falls off from putting in groove.
Preferably, the lateral wall of protection cylinder and seal case connection edge is coated with waterproof layer.It can be avoided water It is slowly penetrated into from the edge that protection cylinder is connect with seal case inside protection cylinder to easily infiltrate into from equipment pin hole.
Above-described specific embodiment, to the purpose of this utility model, technical scheme and beneficial effects carried out into One step is described in detail, it should be understood that being not used to limit the foregoing is merely specific embodiment of the present utility model Determine the protection scope of the utility model, within the spirit and principle of the utility model, any modification for being made equally is replaced It changes, improve, should be included within the scope of protection of this utility model.

Claims (7)

1. the dual dustproof and waterproof structure during a kind of fast insert-pull, which is characterized in that including sequentially connected level-one waterproof Structure (1) and second level waterproof construction (2), the level-one waterproof construction (1) include horizontally disposed protection cylinder (5), protection cylinder (5) It is open at one end and penetrate for covering in equipment pin hole lateral wall, the closing of protection cylinder (5) other end, the closing of protection cylinder (5) Horizontally disposed jack one (6) is offered on end, the end of protection cylinder (5) internal receptacle one (6) is equipped with baffle (7), baffle (7) It, can be towards far from jack one (6) end and far from jack one (6) axis in the power by the extreme direction that is open towards protection cylinder (5) The direction of line moves, and baffle (7) is connected by resetting structure with protection cylinder (5) inner wall, and resetting structure can drive baffle (7) to exist The position of original jack one (6) end is recoiled at the end of stress, the second level waterproof construction (2) includes being arranged in protection cylinder (5) the water proof rubber pad (3) of open end, water proof rubber pad (3) are made using rubber material, and water proof rubber pad offers on (3) The length of criss-cross opening (4), criss-cross opening (4) is identical as the diameter of bolt rod.
2. the dual dustproof and waterproof structure during a kind of fast insert-pull according to claim 1, which is characterized in that described Resetting structure uses torsional spring (8), and the axis of torsional spring (8) is vertical with jack one (6) axis, and torsional spring (8) is by being located in centre bore Fixed pin is fixed on protection cylinder (5) inner wall, and two end one end of torsional spring (8) are connect with baffle (7), the other end and protection cylinder (5) Inner wall connection.
3. the dual dustproof and waterproof structure during a kind of fast insert-pull according to claim 1, which is characterized in that also wrap The seal case (9) being set in outside equipment is included, is offered jack (10) on the side wall of seal case (9), the position of jack (10) It is connected with the open end of the aligned in position of pin hole in equipment, protection cylinder (5) with seal case (9) lateral wall, water proof rubber pad (3) coaxially connected at seal case (9) lateral wall jack (10).
4. the dual dustproof and waterproof structure during a kind of fast insert-pull according to claim 1, which is characterized in that jack The inner wall of one (6) is equipped with sealing rubber layer.
5. the dual dustproof and waterproof structure during a kind of fast insert-pull according to claim 3, which is characterized in that jack (10) inside of seal case (9) is coaxially connected with guide pipe at, and one end of guide pipe is connected with jack (10), the other end and equipment On pin hole be connected.
6. the dual dustproof and waterproof structure during a kind of fast insert-pull according to claim 3, which is characterized in that sealing Storing groove is coaxially provided on lateral wall on cabinet (9) at jack (10), water proof rubber pad (3), which is fastened on, to be put in groove, Protection cylinder (5) inner opening end is arranged with the pressing plate (11) fitted closely with water proof rubber pad (3), is offered on pressing plate (11) for inserting The jack two that pin rod passes through.
7. the dual dustproof and waterproof structure during a kind of fast insert-pull according to claim 3, which is characterized in that protection Cylinder (5) connect edge with the lateral wall of seal case (9) coated with waterproof layer.
CN201821056316.2U 2018-07-04 2018-07-04 A kind of dual dustproof and waterproof structure during fast insert-pull Active CN208487204U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201821056316.2U CN208487204U (en) 2018-07-04 2018-07-04 A kind of dual dustproof and waterproof structure during fast insert-pull

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201821056316.2U CN208487204U (en) 2018-07-04 2018-07-04 A kind of dual dustproof and waterproof structure during fast insert-pull

Publications (1)

Publication Number Publication Date
CN208487204U true CN208487204U (en) 2019-02-12

Family

ID=65249437

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201821056316.2U Active CN208487204U (en) 2018-07-04 2018-07-04 A kind of dual dustproof and waterproof structure during fast insert-pull

Country Status (1)

Country Link
CN (1) CN208487204U (en)

Similar Documents

Publication Publication Date Title
CN102991876B (en) Moisture-proof box of cultural objects
CN209163067U (en) A kind of residential building exterior wall green building structure
CN208487204U (en) A kind of dual dustproof and waterproof structure during fast insert-pull
CN208423549U (en) A kind of novel combination type distribution box
CN207234039U (en) It is a kind of that there is waterproof, the large power supply of anticollision
CN211606007U (en) Electric power cable wiring mounting box
CN209014778U (en) A kind of optical cable light splitting fiber-dividing box with flame retarding function applied to Optical Access Network
CN201708499U (en) Backturn rainproof type cable distribution box
CN208348498U (en) A kind of latch assembly with sealing structure
CN207705582U (en) A kind of electrical waterproof distribution box
CN205304016U (en) Good block terminal of leakproofness
CN204950366U (en) Push piece type cup cover
CN201805148U (en) Rainproof quick-open device of five-protection lock on ground wire pile of transformer substation
CN201733768U (en) Mouse trap
CN2802812Y (en) Terminal box for tunnel
CN203618249U (en) Self-return structure of cabinet door
CN206321823U (en) Dust-protection type photodetector
CN216717382U (en) Hydraulic ring geological survey divides device
CN202348178U (en) Opening and closing type guide device of drill rig
CN206769651U (en) A kind of double-chain electric firefighting window opener
CN201924404U (en) Ground fire hydrant
CN202808138U (en) Fence door protection mechanism for construction elevator
CN202882565U (en) Waterproof dustproof cover for lock
CN212271973U (en) Sealing structure of spliced door
CN212750370U (en) Computer mobile hard disk protection device for information security

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant