CN108005500B - Positioning limit lock - Google Patents
Positioning limit lock Download PDFInfo
- Publication number
- CN108005500B CN108005500B CN201711208928.9A CN201711208928A CN108005500B CN 108005500 B CN108005500 B CN 108005500B CN 201711208928 A CN201711208928 A CN 201711208928A CN 108005500 B CN108005500 B CN 108005500B
- Authority
- CN
- China
- Prior art keywords
- pin shaft
- positioning
- chute
- lock
- lock tongue
- 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
Links
- 230000006835 compression Effects 0.000 claims description 4
- 238000007906 compression Methods 0.000 claims description 4
- 230000035939 shock Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
Abstract
The positioning limit lock comprises a shell, a lock tongue assembly and a lock tongue frame, wherein the lock tongue assembly and the lock tongue frame are positioned in the shell, the lock tongue assembly is provided with a lock tongue and a connecting rod, the lock tongue is hinged with the lock tongue frame through a first pin shaft, and the lock tongue frame is provided with a first chute which accommodates the first pin shaft and allows the first pin shaft to slide in the first chute; the spring bolt is hinged with the connecting rod through a second pin shaft, the spring bolt frame is provided with a positioning chute which accommodates the second pin shaft and allows the second pin shaft to slide in the positioning chute, the connecting rod is in sliding hinge with the spring bolt frame through a third pin shaft and the second chute, and the connecting rod is sleeved with a spring; the positioning chute consists of a plurality of positioning notches and a communicating groove for communicating all the positioning notches, and when the opening degree of the positioning limiting lock is changed, the second pin shaft enters the next positioning notch from one positioning notch. The invention has the advantages of being capable of being used for side opening and up opening and keeping the opening degree of a fixed angle.
Description
Technical Field
The invention relates to a positioning limit lock, in particular to a positioning limit lock for fully and semi-opening an upward-lifting door or a box cover.
Background
The device capable of realizing the limiting function in the current market mainly comprises a limiting hinge, a gas spring and a limiting bracket. The limiting hinge has a certain limitation on the required limiting direction, can only be used for side opening the door, and cannot limit the cabinet door which is opened in the upward direction. The gas spring can be used for lifting the cover, but has the defects of small limit bearing load, poor shock resistance, easy damage and the like; after the limiting block is used for a long time, plastic deformation and damage can be brought to the vehicle door.
Disclosure of Invention
The invention aims to provide a positioning limit lock which can be used for side door opening and up door opening and can keep a fixed angle opening.
The positioning limit lock comprises a shell, a lock tongue assembly and a lock tongue frame, wherein the lock tongue assembly and the lock tongue frame are positioned in the shell, the lock tongue assembly is provided with a lock tongue and a connecting rod, the lock tongue is hinged with the lock tongue frame through a first pin shaft, and the lock tongue frame is provided with a first chute which accommodates the first pin shaft and allows the first pin shaft to slide in the first chute; the spring bolt is hinged with the connecting rod through a second pin shaft, the spring bolt frame is provided with a positioning chute which accommodates the second pin shaft and allows the second pin shaft to slide in the positioning chute, the connecting rod is in sliding hinge with the spring bolt frame through a third pin shaft and the second chute, and the connecting rod is sleeved with a spring; the positioning chute consists of a plurality of positioning notches and a communicating groove for communicating all the positioning notches, and when the opening degree of the positioning limiting lock is changed, the second pin shaft enters the next positioning notch from one positioning notch.
Further, the connecting rod is provided with a second sliding groove, the third pin shaft is arranged in the second sliding groove, the third pin shaft is fixed with the lock tongue frame, one end of the spring abuts against the second pin shaft, and the other end of the spring abuts against the third pin shaft. When the second pin shaft enters the other positioning notch from the one positioning notch, when the distance between the second pin shaft and the third pin shaft is changed, the position of the third pin shaft in the second sliding groove is changed.
Further, the positioning notches are arranged in the height direction, each positioning notch is provided with a sliding-in part and a locking part, the sliding-in parts are connected with the communication grooves, and the locking parts support the second pin shafts to stay in.
Further, when the second pin shaft is positioned in the highest positioning notch, the positioning limit lock is in a closed state; and when the second pin shaft is positioned in the lowest positioning notch, the opening of the positioning limiting lock is the largest.
Further, the first chute is a horizontal chute.
Further, the lock tongue frame is provided with a groove, the lock tongue assembly is arranged in the groove, and the first pin shaft and the second pin shaft are fixed with the lock tongue. The spring bolt frame can protect the spring bolt assembly, and the two ends of the pin shaft are limited by the spring bolt frame, so that the balance of the spring bolt assembly during movement is maintained.
The invention has the advantages that:
1. the invention has higher bearing capacity, can accept the weight of the lifting door and the box cover in a larger range, and has wide application range.
2. The invention has stronger shock resistance, and the spring is arranged on the supporting structure, so that the invention can play a role in buffering and reduce the damage of the shock to the upper lifting door or the box cover.
3. Compared with the traditional lock body, the invention not only can meet the locking requirement of the traditional lock body, but also can realize the limiting and positioning functions, and simplifies the structure of the upward-lifting door part.
Drawings
Fig. 1 is a schematic view of a latch bolt and latch bolt carrier of the present invention.
Fig. 2 is a schematic view of a latch bolt assembly of the present invention.
Fig. 3 is a front view of the present invention.
Fig. 4 is a front view of the latch bolt carrier of the present invention.
Fig. 5 is a perspective view of the latch bolt carrier of the present invention.
Fig. 6 is an assembly view of the limit lock of the present invention with the case body and the case cover.
Fig. 7 is a view of the latch bolt assembly limit and cover open and close positions of the present invention.
Detailed Description
The locating lock, as shown in fig. 1, includes a housing that is not shown for ease of illustration of the latch assembly and latch bracket, but does not obscure the understanding of the present invention by those skilled in the art. The lock tongue assembly 1 and the lock tongue frame 2 are positioned in the shell, the lock tongue assembly 1 is provided with a lock tongue 11 and a connecting rod 12, the lock tongue 11 is hinged with the lock tongue frame 2 through a first pin shaft 31, and the lock tongue frame 2 is provided with a first chute 21 which accommodates the first pin shaft 31 and allows the first pin shaft 31 to slide in the first chute; the lock tongue 11 is hinged with the connecting rod 12 through a second pin shaft 32, the lock tongue frame 2 is provided with a positioning chute 22 which accommodates the second pin shaft 32 and allows the second pin shaft 32 to slide therein, and the connecting rod 12 and the lock tongue frame 2 are hinged with the connecting rod 12 through a third pin shaft 33 and the second chute in a sliding manner, and a spring 13 is sleeved on the connecting rod 12; the positioning chute 22 is composed of a plurality of positioning notches 221 and a communication groove 222 which communicates all the positioning notches 221, and when the opening degree of the positioning limit lock is changed, the second pin 32 enters the next positioning notch 221 from one positioning notch 221.
When in use, the shell of the positioning limit lock is fixed on the door frame or the box body 4, the free end of the lock tongue 11 is connected with the door or the box cover 5 through the connecting rod, and the lock tongue 11 forms a lever taking the first pin shaft 31 as a fulcrum. When the door or the box cover 5 is opened, the free end of the lock tongue 11 is pulled to change the position, and the lock tongue 11 rotates around the first pin shaft 31 to enable the second pin shaft 32 to enter the other positioning notch 221 from the current positioning notch 221. When no external force changes the opening degree of the door or the box cover 5, the restoring force of the spring 13 makes the second pin shaft 32 self-lock in the positioning notch 221.
In one embodiment, as shown in fig. 2, the connecting rod 12 is provided with a second chute 121, the third pin 33 is installed in the second chute, the third pin 33 is fixed with the latch bolt frame 2, and one end of the spring 13 abuts against the second pin 32, and the other end abuts against the third pin 33. When the second pin 32 enters the other positioning notch 221 from the one positioning notch 221, the position of the third pin 33 in the second chute 121 changes when the distance between the second pin 32 and the third pin 33 changes. The spring 13 always abuts against the second pin shaft 32 and the third pin shaft 33, along with the position change of the third pin shaft 33 in the second sliding groove 121, the compression degree of the spring 13 changes, when the opening degree of the positioning limit lock is maximum, the distance between the second pin shaft 32 and the third pin shaft 33 is closest, the compression degree of the spring 13 is maximum, and the supporting force of the second pin shaft 32 in the positioning notch is maximum by the spring 13.
The positioning notches 221 are arranged in the height direction, and each positioning notch 221 has a slide-in portion and a locking portion, the slide-in portion being connected to the communication groove, the locking portion supporting the second pin to stay therein. The spring 13 abuts the second pin 32 in the locking portion of the positioning slot.
When the second pin shaft 32 is positioned in the highest positioning notch, the positioning limit lock is in a closed state; when the second pin shaft 32 is positioned in the lowest positioning notch, the opening degree of the positioning limiting lock is maximum.
In one embodiment, as shown in fig. 3 and 4, there are three positioning notches, namely a first positioning notch A1, a second positioning notch A2 and a third positioning notch A3, in order from top to bottom. When the second pin 32 is located in the first positioning notch A1 (the highest positioning notch), the free end of the lock tongue 11 is located at the lowest position, the case cover 5 or the door is in a closed state, and the opening of the positioning limiting lock is 0. When the second pin 32 is positioned in the second positioning notch A2, the case cover 5 or the door is at the middle opening. When the second pin 32 is located in the third positioning notch A3 (i.e. when the positioning notch is the lowest), the free end of the lock tongue is turned to the highest position, and the case cover 5 or the door is at the maximum opening. The number of locating notches is not limited to the distance of this embodiment. The more the number of the middle positioning notches is, the smaller the opening change amplitude of each time is, and the method is suitable for the condition that the door is opened by an accurate angle.
All the positioning notches 221 are located on the side of the communication groove remote from the spring 13.
The first chute 21 is a horizontal chute. As the opening of the case cover 5 changes, the height position of the second pin 32 relative to the latch bolt frame 2 changes, the angle between the latch bolt 11 and the link 12 changes, the lengths of the latch bolt 11 and the link 12 in the top view direction change, and the first pin 31 slides in the first chute 21 to adapt to the length change in the top view direction.
The latch bolt frame 2 is provided with a groove, the latch bolt assembly 1 is arranged in the groove, and the first pin shaft 31 and the second pin shaft 32 are fixed with the latch bolt 11.
As shown in fig. 5, the latch bolt frame 2 is formed by two side plates 2A and a bottom plate 2B, the groove 2C is located between the two side plates 2A, the first sliding groove 21 and the second sliding groove 22 are disposed on the two side plates in pairs, the two first sliding grooves are aligned, the two second sliding grooves are aligned, two ends of the second pin shaft 32 are erected on the second sliding grooves, and two ends of the first pin shaft 31 are erected on the first sliding grooves. The latch bolt frame 2 can protect the latch bolt assembly 1, and both ends of the pin shaft are limited by the latch bolt frame 2, so that the balance of the latch bolt assembly 1 during movement is kept.
In one embodiment, as shown in fig. 6 and 7, a box (such as a trunk of a vehicle) is provided with a positioning limit lock, the positioning limit lock is installed on the box body 4, the lock tongue 11 is connected with the box cover 5 through a connecting rod 6, one end of the connecting rod 6 is hinged with the lock tongue 11, and the other end is hinged with the box cover 5.
The bolt rack 2 is provided with a mounting groove 23, the mounting groove 23 is a waist-shaped groove, and a bolt penetrates through the mounting groove to fasten the bolt rack and the box body; or the lock tongue frame 2 is fixed on a slide block, the slide block is in sliding fit with the slide rail, and a locking piece for locking the position of the slide block is arranged between the slide block and the slide rail; the box cover is provided with a plurality of mounting holes hinged with the connecting rods. The locking piece can be a set screw which locks the slide block to the slide rail. In the use process, the positioning limiting lock can change the position, so that the positioning limiting opening degree of each position is realized, and the positioning limiting of any angle of the door or the box cover is further realized.
The embodiments described in the present specification are merely examples of implementation forms of the inventive concept, and the scope of protection of the present invention should not be construed as being limited to the specific forms set forth in the embodiments, and the scope of protection of the present invention and equivalent technical means that can be conceived by those skilled in the art based on the inventive concept.
Claims (4)
1. The positioning limit lock comprises a shell, and a lock tongue assembly and a lock tongue frame which are positioned in the shell, and is characterized in that the lock tongue assembly is provided with a lock tongue and a connecting rod, the lock tongue is hinged with the lock tongue frame through a first pin shaft, and the lock tongue frame is provided with a first chute which accommodates the first pin shaft and allows the first pin shaft to slide in the first chute; the spring bolt is hinged with the connecting rod through a second pin shaft, the spring bolt frame is provided with a positioning chute which accommodates the second pin shaft and allows the second pin shaft to slide in the positioning chute, the connecting rod is in sliding hinge with the spring bolt frame through a third pin shaft and the second chute, and the connecting rod is sleeved with a spring; the positioning chute consists of a plurality of positioning notches and a communication groove for communicating all the positioning notches, and when the opening degree of the positioning limit lock is changed, the second pin shaft enters the next positioning notch from one positioning notch;
The connecting rod is provided with a second chute, the third pin shaft is arranged in the second chute, the third pin shaft is fixed with the lock tongue frame, one end of the spring is propped against the second pin shaft, and the other end is propped against the third pin shaft;
When the second pin shaft enters the other positioning notch from the one positioning notch, and when the distance between the second pin shaft and the third pin shaft is changed, the position of the third pin shaft in the second sliding groove is changed; the spring is always abutted against the second pin shaft and the third pin shaft, along with the position change of the third pin shaft in the second chute, the compression degree of the spring is changed, when the opening degree of the positioning limit lock is maximum, the distance between the second pin shaft and the third pin shaft is closest, the compression degree of the spring is maximum, and the supporting force of the second pin shaft in the positioning notch is maximum;
The positioning notch is arranged along the height direction, each positioning notch is provided with a sliding-in part and a locking part, the sliding-in parts are connected with the communication grooves, and the locking parts support the second pin shafts to stay in.
2. The locating and spacing lock of claim 1, wherein: when the second pin shaft is positioned in the highest positioning notch, the positioning limit lock is in a closed state; and when the second pin shaft is positioned in the lowest positioning notch, the opening of the positioning limiting lock is the largest.
3. The locating and spacing lock of claim 2, wherein: the first chute is a horizontal chute.
4.A locating and spacing lock as claimed in claim 3 wherein: the spring bolt frame has the recess, and spring bolt subassembly dress is in the recess, and first round pin axle and second round pin axle are all fixed with the spring bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711208928.9A CN108005500B (en) | 2017-11-27 | Positioning limit lock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711208928.9A CN108005500B (en) | 2017-11-27 | Positioning limit lock |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108005500A CN108005500A (en) | 2018-05-08 |
| CN108005500B true CN108005500B (en) | 2024-05-14 |
Family
ID=
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11210303A (en) * | 1998-01-20 | 1999-08-03 | Shinkansai Bearing Co Ltd | Stay for window ventilation |
| CN2494868Y (en) * | 2001-08-06 | 2002-06-12 | 何龙光 | One directional braking mechanism for window hinge |
| DE102006054410A1 (en) * | 2006-11-18 | 2008-05-21 | Conti Temic Microelectronic Gmbh | Swiveling body part with adjustable maximum opening angle |
| WO2013062149A1 (en) * | 2011-10-25 | 2013-05-02 | 볼보 컨스트럭션 이큅먼트 에이비 | Device for opening and closing the engine hood of a construction machine |
| JP2015187335A (en) * | 2014-03-26 | 2015-10-29 | アイシン精機株式会社 | door opening adjustment device |
| CN207513393U (en) * | 2017-11-27 | 2018-06-19 | 青海大学 | Positioning limit is locked |
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11210303A (en) * | 1998-01-20 | 1999-08-03 | Shinkansai Bearing Co Ltd | Stay for window ventilation |
| CN2494868Y (en) * | 2001-08-06 | 2002-06-12 | 何龙光 | One directional braking mechanism for window hinge |
| DE102006054410A1 (en) * | 2006-11-18 | 2008-05-21 | Conti Temic Microelectronic Gmbh | Swiveling body part with adjustable maximum opening angle |
| WO2013062149A1 (en) * | 2011-10-25 | 2013-05-02 | 볼보 컨스트럭션 이큅먼트 에이비 | Device for opening and closing the engine hood of a construction machine |
| JP2015187335A (en) * | 2014-03-26 | 2015-10-29 | アイシン精機株式会社 | door opening adjustment device |
| CN207513393U (en) * | 2017-11-27 | 2018-06-19 | 青海大学 | Positioning limit is locked |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10813452B2 (en) | Smart logistics cabinet and adjustable partition structure thereof | |
| US7510223B2 (en) | Arc resistant electrical enclosure system and method | |
| US20090223022A1 (en) | Rack mounted component door system and method | |
| US20120227330A1 (en) | Door assembly and method of replacing a door of an electronics cabinet | |
| CN101122198A (en) | Auxiliary safety module for doors provided with anti-panic opening device | |
| CN108005500B (en) | Positioning limit lock | |
| CN105534092A (en) | Sliding rail self-locking damping mechanism for drawer | |
| CN103902935B (en) | Cabinet protective device | |
| US20150151691A1 (en) | Rotary assembly and vehicle bracket using the same | |
| CN103573057A (en) | Integrated pickup truck tail door lock structure | |
| US3858274A (en) | Self-centering cafe door hinge assembly | |
| CN208690341U (en) | A kind of battery anti-theft structure | |
| CN209879606U (en) | Bill processing equipment and cabinet thereof | |
| CN109144199B (en) | Computer case convenient to adjust hardware installation position | |
| US20140048665A1 (en) | Supporting apparatus for vending machine | |
| CN210976954U (en) | Anti-falling multipoint lock | |
| CN211144125U (en) | Installation hinge assembly of fireproof door | |
| CN109088460A (en) | A kind of onboard wireless charging equipment | |
| CN108005500A (en) | Positioning limit is locked | |
| CN108729788A (en) | Mechanism for moving furniture door | |
| CN204697427U (en) | With the outdoor cabinet of multistage interlocking structure | |
| CN109267854B (en) | Miniature electronic lock of drawer cabinet | |
| CN214091459U (en) | Novel simple door hinge | |
| CN210563987U (en) | Opening and anti-rebound mechanism of cabin door | |
| CA2857516C (en) | Latch assembly for multiple doors |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant |