CN114233118A - Packing card lock - Google Patents
Packing card lock Download PDFInfo
- Publication number
- CN114233118A CN114233118A CN202210071735.8A CN202210071735A CN114233118A CN 114233118 A CN114233118 A CN 114233118A CN 202210071735 A CN202210071735 A CN 202210071735A CN 114233118 A CN114233118 A CN 114233118A
- Authority
- CN
- China
- Prior art keywords
- handle
- clamping
- shell
- unlocking
- link
- 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.)
- Pending
Links
- 238000012856 packing Methods 0.000 title claims abstract description 5
- 210000000078 claw Anatomy 0.000 claims description 10
- 230000006835 compression Effects 0.000 claims description 10
- 238000007906 compression Methods 0.000 claims description 10
- 238000001125 extrusion Methods 0.000 abstract description 8
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 238000007789 sealing Methods 0.000 abstract description 5
- 210000001847 jaw Anatomy 0.000 description 15
- 230000000694 effects Effects 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 230000003139 buffering effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 210000003781 tooth socket Anatomy 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B65/00—Locks or fastenings for special use
- E05B65/52—Other locks for chests, boxes, trunks, baskets, travelling bags, or the like
- E05B65/5207—Other locks for chests, boxes, trunks, baskets, travelling bags, or the like characterised by bolt movement
- E05B65/5246—Other locks for chests, boxes, trunks, baskets, travelling bags, or the like characterised by bolt movement rotating
Landscapes
- Specific Sealing Or Ventilating Devices For Doors And Windows (AREA)
Abstract
The invention relates to a packing latch, which comprises a slot part and a latching part, wherein the slot part is arranged on a door jamb and provides a slot; the locking part is arranged on the door and is provided with a shell, a clamping jaw and a handle; the clamping jaw is provided with a hook, and the clamping jaw is positioned in the shell and can extend out of the shell through operation so as to be hooked with the clamping groove of the clamping groove part; a handle rotatably mounted in the housing and having a portion extending from the housing, the inner end of the handle being connected to the jaws by a plurality of interconnected linkages and the inner end of the handle being provided with a locking portion; the handle is provided with a locking part, and the handle is provided with a locking part; the unlocking piece is assembled in the shell and used for operating and unlocking the limitation of the clamping piece on the handle. The structure is simple, the manufacture and the assembly are convenient, the requirements of door closing extrusion gaskets of various test boxes/cabinets and various furnaces and the like are met, and a certain degree of extrusion and sealing force is established.
Description
Technical Field
The present invention relates to the field of compression devices, and more particularly to a compression latch of the type used to lock a gasket-lined door or a gasket-lined door jamb.
Background
At present, various test chambers/cabinets and various types of furnaces and the like are generally lined with gaskets on doors or door frames in order to obtain the required artificial environment, so that the doors are closed to obtain corresponding tightness; the tightening of the door against the jamb of the doorframe causes the gasket to establish a degree of compression and sealing force, thereby requiring a corresponding compression latch to lock, which is operated by a handle to achieve the desired latch configuration. However, the existing clamping lock has the disadvantages of relatively complicated structure, inconvenient manufacture and assembly, lack of limitation of a handle, easy occurrence of misoperation and accidents.
Disclosure of Invention
The invention aims to provide a packing lock which well solves the technical problems, has a simple structure, is convenient to manufacture and assemble, meets the requirements of door closing extrusion gaskets of various test boxes/cabinets and various furnaces and the like, and establishes a certain degree of extrusion and sealing force.
In order to achieve the purpose, the invention adopts the following technical scheme:
a compression latch, comprising:
a card slot portion provided on the door jamb and providing a card slot;
a latch portion provided on the door and having at least a housing, a claw, and a handle;
the jaw is provided with a hook, the jaw is positioned in the shell and can be extended out of the shell through operation, so that the hook can be hooked with the clamping groove of the clamping groove part;
the handle is rotatably mounted in the housing and has a portion extending from the housing, an inner end of the handle is connected to the jaws by a plurality of interconnected linkages, and a latch is provided on the inner end of the handle; and further comprising:
the clamping piece is assembled in the shell and is matched with the locking part on the handle to limit the rotation of the handle;
and the unlocking piece is assembled in the shell and used for operating and releasing the limitation of the clamping piece on the handle.
The above scheme is further that the locking part on the handle is a tooth socket, the clamping part is a telescopic bolt, and the clamping part is clamped into the locking part under the action of the elastic part so as to limit the rotation of the handle; the clamping part is also provided with a pushing top part which is connected with the unlocking part, and the unlocking part is stressed to drive the pushing top part so that the clamping part overcomes the acting force of the elastic part and exits from the locking part.
The unlocking piece is in a connecting rod form, the middle section of the unlocking piece is hinged to the shell through a first pin shaft, one end of the unlocking piece is exposed out of the shell to form an impact part, and the other end of the unlocking piece is connected with the clamping piece; after the impact part is acted by external force, the unlocking part releases the limitation of the clamping part on the handle, the handle drives the clamping jaw to extend out of the shell through the linkage part, and the hook is enabled to hook the clamping groove of the clamping groove part based on a tightening mode.
The linkage piece comprises a first connecting rod, a second connecting rod and a third connecting rod, one end of the first connecting rod is hinged with the clamping jaw, the other end of the first connecting rod is hinged with the corresponding ends of the second connecting rod and the third connecting rod through a second pin shaft, and the first connecting rod forms different included angles with the second connecting rod and the third connecting rod respectively; the other end of the second connecting rod is hinged to the shell together with the unlocking piece through a first pin shaft, the other end of the third connecting rod is hinged to the inner end of the handle through a third pin shaft, rotating pretightening force is added to the inner end of the handle, and the middle section of the handle is hinged to the shell through a fourth pin shaft; and a first guide groove is arranged on the clamping jaw and is matched with a fifth pin shaft preset on the shell to guide the hook of the clamping jaw to move.
The unlocking piece is provided with a second guide groove, and the second pin shaft is provided with a part protruding to the second guide groove, so that the second pin shaft and the second guide groove cooperate to guide the unlocking piece to move.
The scheme is further that the inner end of the handle obtains a rotating pretightening force through a first torsion spring supporting top.
In the scheme, the handle and the shell are supported by a second torsion spring.
The above scheme is further that the elastic element is a compression spring, the elastic element and the clamping element are installed in a preset sliding groove of the shell together, and two ends of the elastic element support the clamping element and the shell respectively.
The handle of the invention is rotatably arranged in the shell and is provided with a part extending out of the shell so as to be convenient for operating the handle, and is connected with the clamping jaw through a plurality of interconnected linkage parts, so that the hook on the clamping jaw is hung on the clamping groove of the clamping groove part, the inner end of the handle is provided with a locking part which is matched with the clamping position to limit the rotation of the handle, and the rotation of the handle is limited when the handle is not used after unlocking, thereby preventing misoperation; meanwhile, the limitation of the clamping piece on the handle is removed through the unlocking piece, and the usability is improved. The structure is simple, the manufacture and the assembly are convenient, the requirements of door closing extrusion gaskets of various test boxes/cabinets and various furnaces and the like are met, and a certain degree of extrusion and sealing force is established.
Description of the drawings:
FIG. 1 is a schematic structural diagram of a preferred embodiment of the present invention;
FIG. 2 is a schematic side view of the embodiment of FIG. 1;
FIGS. 3 and 4 are schematic partial exploded views of the embodiment of FIG. 1;
FIG. 5 is an enlarged view of a portion of the embodiment of FIG. 4;
fig. 6 is a schematic view of an internal structure of the latch portion of the embodiment of fig. 1.
The specific implementation mode is as follows:
the conception, the specific structure and the technical effects of the present invention will be further described with reference to the accompanying drawings to fully understand the objects, the features and the effects of the present invention.
It should be noted that in the description of the present invention, the terms of direction or positional relationship indicated by the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", "third", "fourth", "fifth" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated.
Referring to fig. 1, 2, 3, 4, 5 and 6, which are schematic views of a preferred embodiment of the present invention, the present invention relates to a compression latch having a slot portion 1 and a latch portion 2, wherein the slot portion 1 is provided on a door jamb and provides a slot 11, although the slot portion 1 is not limited thereto, and is directly formed integrally with the door jamb. The locking part 2 is arranged on the corresponding door and corresponds to the clamping groove part 1, so that when the door is closed, the locking part 2 is matched and clamped with the clamping groove part 1.
The latch portion 2 has at least a housing 21, a pawl 22, and a shank 23; the housing 21 is used for connecting a door and providing a corresponding installation space for the installation and operation of the jaws 22 and the handles 23, and the housing 21 shown in the figure is composed of a left part and a right part which are combined together, so that the assembly and maintenance are convenient. The pawl 22 is provided with a hook 221, and the pawl 22 is positioned in the housing 21 and is operable to extend from the housing so that the hook 221 hooks the slot 11 of the slot portion. The handle 23 is rotatably mounted within the housing and has a portion extending from the housing for manipulating or connecting with a corresponding operating member for design and use in conjunction with a door, without limitation. The inner end of the handle 23 is connected with the jaws 22 through a plurality of interconnected linkage pieces, and a locking part 231 is arranged on the inner end of the handle 23; and also include the position-retaining part 24 and release 25, the position-retaining part 24 is assembled in body 21, the position-retaining part 24 cooperates with locking part 231 on the shank to limit the shank 23 to rotate, prevent the situation of turning the shank by mistake; the unlocking member 25 is assembled in the housing for operating the unlocking member to release the handle so that the handle 23 is operated to move the claw 22 by the plurality of interlinking members interconnected to extend the claw 22 from the housing so that the hook 221 engages the slot 11 of the slot portion.
In the embodiment shown in fig. 3, 4, 5 and 6, the locking part 231 on the handle is a spline, that is, a concave spline is formed on the inner end of the handle 23, the detent member 24 is a retractable latch, and the detent member 24 is snapped into the locking part 231 by the elastic member 26, so as to limit the rotation of the handle. The stopper 24 is further provided with a push-top portion 241, the push-top portion 241 is connected to the unlocking member 25, and the unlocking member 25 is urged to drive the push-top portion 241 so that the stopper 24 is withdrawn from the locking portion 231 against the urging force of the elastic member 26, thereby releasing the stopper from the handle. In this embodiment, the unlocking member 25 is in the form of a link, the middle section of the unlocking member 25 is hinged to the housing 21 through the first pin 271, one end of the unlocking member is exposed out of the housing to form the striking portion 251, and the other end of the unlocking member is connected to the position-locking member 24. As shown in the figure, the unlocking piece 25 forms a seesaw shape after being installed, the top pushing part 241 is in a boss shape, and the corresponding end of the unlocking piece is in contact with the top pushing part 241, so that the structure is simple, and the manufacturing and the assembly are convenient. The elastic element 26 is a compression spring, the elastic element 26 and the blocking element 24 are installed in a preset sliding groove of the shell together, two ends of the elastic element 26 support the blocking element and the shell respectively, the structure is simple, the investment cost is low, and the blocking element 24 works stably and reliably. In the above structure, after the striking part 251 is acted by external force, the unlocking part pushes the clamping part and keeps the pushing force, and the clamping part 24 exits from the locking part 231, so that the limitation to the handle can be removed, the handle drives the clamping jaw to extend out of the shell through the linkage part, and the hook is hooked with the clamping groove of the clamping groove part based on the tightening mode. In this embodiment, by the door closing action, the striking portion 251 is struck and pushed by the slot portion 1 or the door jamb on the front side, and the closing force of the door is continuously closed, the corresponding end of the unlocking member is contacted with the abutment portion 241, the engaging member 24 is withdrawn from the engaging portion 231, the handle is released, and then the handle 23 is operated, the claw 22 is driven by the plurality of interconnected links, and the claw 22 is extended from the housing, so that the hook 221 engages the slot 11 of the slot portion.
As shown in fig. 1, 2, 3, 4, 5, and 6, in this embodiment, the linkage member includes a first connecting rod 281, a second connecting rod 282, and a third connecting rod 283, one end of the first connecting rod 281 is hinged to the jaw 22, the other end of the first connecting rod 281 is hinged to the corresponding ends of the second connecting rod 282 and the third connecting rod 283 through a second pin 272, and the first connecting rod 281 forms different included angles with the second connecting rod 282 and the third connecting rod 283, so as to obtain a stress angle of relative movement, thereby realizing linkage. The other end of the second link 282 is hinged to the housing 21 together with the unlocking member 25 via the first pin 271, so as to obtain a positioning support, so that the first link 281 and the second link 282 are moved relative to each other to move the pawl 22. The other end of the third link 283 is hinged to the inner end of the handle 23 through a third pin 273 to form a power input, so that after the handle 23 is operated, the first link 281 and the second link 282 are pulled through the third link 283 to drive the claw 22 to move, the hook 221 of the claw 22 extends out of the housing and hooks the slot 11 of the slot part, and a clamping effect is obtained. In this embodiment, a third guide groove 212 is further formed inside the housing 21, and the third guide groove 212 is configured along a movement track of the hinge position of the first link 281 and the claw 22, so as to further guide and increase the movement of the claw 22, and obtain a better clamping effect. In this embodiment, a rotating pretightening force is further added to the inner end of the handle, specifically, the rotating pretightening force is obtained by propping the first torsion spring 291, so that the hand feeling of the operation handle 23 and the assisting force for returning the handle 23 are obtained, and the usability is improved. The middle section of the handle 23 of this embodiment is hinged to the housing 21 through a fourth pin 274 to obtain a rotation fulcrum; further, still prop up through second torsional spring 292 between handle 23 and casing 21, this second torsional spring 292 corresponds fourth round pin axle 274 installation, and similarly, through second torsional spring 292, can obtain the feel of operation handle 23 and give the helping hand of handle 23 return, promote performance, simple structure, convenient preparation, investment cost is low. In the embodiment, a corresponding limiting portion 211 is further provided in the housing 21, and the limiting portion 211 is distributed in the positive and negative directions of the deflection of the inner end of the handle 23 for determining the deflection amplitude of the inner end of the handle 23 and preventing over-operation.
In this embodiment, the first guiding groove 222 is further disposed on the latch 22, and the first guiding groove 222 cooperates with a fifth pin 275 preset on the housing to guide the movement of the latch hook 221 of the latch, so as to ensure that the latch hook 221 is locked stably and unlocked smoothly.
In this embodiment, the unlocking member 25 is provided with the second guide groove 252, and the second pin 272 has a portion protruding into the second guide groove, so that the second pin 272 and the second guide groove 252 cooperate to guide the movement of the unlocking member 25, give a buffering effect to the impact and ensure the unlocking member 25 moves correctly to push the locking member 24, and the operation is stable and reliable.
The handle of the invention is rotatably arranged in the shell and is provided with a part extending out of the shell so as to be convenient for operating the handle, and is connected with the clamping jaw through a plurality of interconnected linkage parts, so that the hook on the clamping jaw is hung on the clamping groove of the clamping groove part, the inner end of the handle is provided with a locking part which is matched with the clamping position to limit the rotation of the handle, and the rotation of the handle is limited when the handle is not used after unlocking, thereby preventing misoperation; meanwhile, the limitation of the clamping piece on the handle is removed through the unlocking piece, and the usability is improved. The structure is simple, the manufacture and the assembly are convenient, the requirements of door closing extrusion gaskets of various test boxes/cabinets and various furnaces and the like are met, and a certain degree of extrusion and sealing force is established.
It is to be understood that the foregoing detailed description of the present invention has been provided only for the purpose of illustrating the technical spirit and features of the present invention, and the present invention is not limited thereto.
Claims (8)
1. A compression latch, comprising:
a card slot portion provided on the door jamb and providing a card slot;
a latch portion provided on the door and having at least a housing, a claw, and a handle;
the jaw is provided with a hook, the jaw is positioned in the shell and can be extended out of the shell through operation, so that the hook can be hooked with the clamping groove of the clamping groove part;
the handle is rotatably mounted in the housing and has a portion extending from the housing, an inner end of the handle is connected to the jaws by a plurality of interconnected linkages, and a latch is provided on the inner end of the handle; and further comprising:
the clamping piece is assembled in the shell and is matched with the locking part on the handle to limit the rotation of the handle;
and the unlocking piece is assembled in the shell and used for operating and releasing the limitation of the clamping piece on the handle.
2. A clamp latch according to claim 1, wherein said locking portion of said handle is a spline and said retaining member is a retractable latch adapted to be engaged by said locking portion by said resilient member to restrict rotation of said handle; the clamping part is also provided with a pushing top part which is connected with the unlocking part, and the unlocking part is stressed to drive the pushing top part so that the clamping part overcomes the acting force of the elastic part and exits from the locking part.
3. A clamping latch according to claim 1 or 2, wherein said unlocking member is in the form of a link, the middle section of the unlocking member is hinged to the housing by a first pin, and one end of the unlocking member is exposed from said housing to form a striking portion, and the other end of the unlocking member is connected to the clamping member; after the impact part is acted by external force, the unlocking part releases the limitation of the clamping part on the handle, the handle drives the clamping jaw to extend out of the shell through the linkage part, and the hook is enabled to hook the clamping groove of the clamping groove part based on a tightening mode.
4. A packing latch according to claim 3, wherein the linkage member includes a first link, a second link and a third link, one end of the first link is hinged to the pawl, the other end of the first link is hinged to the corresponding ends of the second link and the third link by a second pin, the first link forms different included angles with the second link and the third link, respectively; the other end of the second connecting rod is hinged to the shell together with the unlocking piece through a first pin shaft, the other end of the third connecting rod is hinged to the inner end of the handle through a third pin shaft, rotating pretightening force is added to the inner end of the handle, and the middle section of the handle is hinged to the shell through a fourth pin shaft; and a first guide groove is arranged on the clamping jaw and is matched with a fifth pin shaft preset on the shell to guide the hook of the clamping jaw to move.
5. The clamp latch of claim 4, wherein the unlocking member is provided with a second guide groove, and the second pin has a portion protruding into the second guide groove so that the second pin cooperates with the second guide groove to guide the movement of the unlocking member.
6. The lock of claim 4, wherein the inner end of the lever is rotationally biased by a first torsion spring abutment.
7. The clamp latch of claim 4, wherein said handle and housing are further supported by a second torsion spring.
8. The clamp latch of claim 2, wherein the resilient member is a compression spring, the resilient member and the detent member are mounted together in a predetermined slot in the housing, and the resilient member abuts the detent member and the housing at opposite ends of the resilient member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210071735.8A CN114233118A (en) | 2022-01-21 | 2022-01-21 | Packing card lock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210071735.8A CN114233118A (en) | 2022-01-21 | 2022-01-21 | Packing card lock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114233118A true CN114233118A (en) | 2022-03-25 |
Family
ID=80747062
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210071735.8A Pending CN114233118A (en) | 2022-01-21 | 2022-01-21 | Packing card lock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114233118A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104136699A (en) * | 2012-02-07 | 2014-11-05 | 索斯科公司 | Lever actuated compression latch |
| CN105811146A (en) * | 2016-05-23 | 2016-07-27 | 安费诺精密连接器(深圳)有限公司 | High-voltage interlock connector |
| US20190177059A1 (en) * | 2017-12-07 | 2019-06-13 | Kongjun YANG | Thermal box |
| CN113605791A (en) * | 2021-08-25 | 2021-11-05 | 上海铁路通信有限公司 | Multipoint connecting rod lock device for cabinet |
| CN216921732U (en) * | 2022-01-21 | 2022-07-08 | 广东尚坤工业科技有限公司 | Packing card lock |
-
2022
- 2022-01-21 CN CN202210071735.8A patent/CN114233118A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104136699A (en) * | 2012-02-07 | 2014-11-05 | 索斯科公司 | Lever actuated compression latch |
| CN105811146A (en) * | 2016-05-23 | 2016-07-27 | 安费诺精密连接器(深圳)有限公司 | High-voltage interlock connector |
| US20190177059A1 (en) * | 2017-12-07 | 2019-06-13 | Kongjun YANG | Thermal box |
| CN113605791A (en) * | 2021-08-25 | 2021-11-05 | 上海铁路通信有限公司 | Multipoint connecting rod lock device for cabinet |
| CN216921732U (en) * | 2022-01-21 | 2022-07-08 | 广东尚坤工业科技有限公司 | Packing card lock |
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