CN202326594U - Invisible pin-lock assembly - Google Patents
Invisible pin-lock assembly Download PDFInfo
- Publication number
- CN202326594U CN202326594U CN2011204747699U CN201120474769U CN202326594U CN 202326594 U CN202326594 U CN 202326594U CN 2011204747699 U CN2011204747699 U CN 2011204747699U CN 201120474769 U CN201120474769 U CN 201120474769U CN 202326594 U CN202326594 U CN 202326594U
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- CN
- China
- Prior art keywords
- pin
- lock assembly
- insertion end
- wall
- cover
- 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.)
- Expired - Fee Related
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- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
Abstract
An invisible pin-lock assembly comprises a round pin rod, wherein the round pin rod comprises a top cover end and an insertion end. The invisible pin-lock assembly is characterized by further comprising a round-sleeve type pin cover, wherein locking heads are arranged on the inner wall of the pin cover; a spring seat and a spring matched with the spring seat are arranged at the centre of the bottom of the inner cavity of the pin cover; L-shaped lock grooves matched with the locking heads are arranged on the outer wall of the insertion end; and an axial centre hole matched with the spring is arranged at the insertion end. In one improvement, the invisible pin-lock assembly is characterized in that three pairs of the locking heads and the matched L-shaped lock grooves are arranged, and are uniformly distributed on the inner wall of the pin cover and the outer wall of the insertion end respectively. In another improvement, the invisible pin-lock assembly is characterized in that a waterproof oil-seal groove and a sealing ring matched with waterproof oil-seal groove are arranged on the inner wall of the pin cover, close to a cover opening. The locking mechanism of the invisible pin-lock assembly disclosed by the utility model is arranged in the inner cavity of the pin cover, thus avoiding the corrosions of air and rainwater, and ensuring the operation safety of equipment; and the locking mechanism is convenient in disassembly, assembly and overhaul, high in reliability, and suitable for various types of mechanical equipment with pin type connection.
Description
Technical field
The utility model relates to a kind of improvement structure of pin, especially a kind of locking framework of round pin.
Background technique
The pin formula connecting structure of multiple machineries such as existing rail vehicles, vehicle traction, loader, boats and ships; All be to be employed in to punch on the round pin bar to add the mode of structure of joining cotter pin; The cotter pin long term exposure outside; Be subject to the erosion of air and rainwater, cotter pin is got rusty and is often caused local fracture to come off, and brings potential safety hazard.
The model utility content
The problem that the utility model will solve is to provide a kind of stealthy lock assembly, and its Safety performance is good, is convenient to dismounting, and maintenance is convenient, is suitable for the multiple machinery that the pin formula connects.
The utility model adopts following technological scheme: comprise the round pin bar; Said round pin bar comprises cap end and insertion end; It is characterized in that: also comprise a round shell type pin cap, the inwall of said pin cap is provided with elongated insertion part, and the intracavity bottom center of pin cap is provided with spring seat and the spring that matches; The outer wall of said insertion end is provided with " L " shape locked groove that matches with elongated insertion part, and said insertion end is provided with an axial center hole that matches with spring.Its principle is: during fitting operation, the insertion end of round pin bar is inserted in the pin-and-hole of two parts that need the connection of pin formula, then; Pin cap is inserted in insertion end, and elongated insertion part is aimed at the introducing port of " L " shape locked groove simultaneously, the pressing spring down of exerting oneself again; When elongated insertion part supports into the bottom of " L " shape locked groove; The rotation pin cap is with the kayser end of elongated insertion part importing " L " shape locked groove, and trip spring, elongated insertion part promptly snap in the kayser end; Disassembling section, opposite with the aforesaid operations program.This structure, locking framework are located at the inner chamber of pin cap, have avoided the erosion of air and rainwater, have ensured the Security of equipment operation.
A kind of improvement be said elongated insertion part quantity is set is three, be distributed in the pin cap inwall; It is three that said " L " shape locked groove is provided with quantity, is distributed in the insertion end outer wall.This structure, three built-in elongated insertion parts become 120 ° angular distribution, and the round pin bar is whole stressed even, good stability.
Another kind of improvement is that the inwall near the lid mouth of said pin cap is provided with dubbin sealing groove and the seal ring that matches.This structure has further been protected locking framework, makes it avoid corroding, and has improved its Security.
Also having a kind of improvement is also to comprise a check lock lever, and the spacing of the end face of round pin bar insertion end and pin cap intracavity bottom is suitable when the length of said check lock lever and mounting point, and the adjustable side of check lock lever is provided with screw thread, and pin cap is provided with the tapped hole that matches.This structure can be fixed the locked position of elongated insertion part, makes spring become incompressible state, has strengthened reliability.
The locking framework of the utility model is located at the inner chamber of pin cap, has avoided the erosion of air and rainwater, has ensured the Security of equipment operation; Its dismounting, maintenance convenience, reliability is high, is suitable for the multiple machinery that the pin formula connects; Its invisible structure design also is beneficial to antitheft.
Description of drawings
Fig. 1 is the perspective view of round pin bar.
Fig. 2 is the perspective view of pin cap.
Fig. 3 is structural principle (the not comprising spring) schematic representation of the utility model.
Embodiment
Like Fig. 1, Fig. 2, shown in Figure 3; A kind of embodiment of the utility model comprises round pin bar 1, and said round pin bar 1 comprises cap end 2 and insertion end 3, it is characterized in that: also comprise a round shell type pin cap 4; The inwall of said pin cap 4 is provided with elongated insertion part 5; The intracavity bottom center of pin cap 4 is provided with spring seat 6 and the spring 7 that matches, and the outer wall of said insertion end 3 is provided with " L " shape locked groove 8 that matches with elongated insertion part 5, and said insertion end 3 is provided with an axial center hole 9 that matches with spring 7.Shown in Figure 3, be that round pin bar 1 does not fasten the state that puts in place as yet with pin cap 4.Its principle is: during fitting operation, the insertion end 3 of round pin bar 1 is inserted in the pin-and-hole of two parts that need the connection of pin formula, then; Pin cap 4 is inserted in insertion end 3, and elongated insertion part 5 is aimed at the introducing port of " L " shape locked groove 8 simultaneously, the pressing spring 7 down of exerting oneself again; When elongated insertion part 5 supports into the bottom of " L " shape locked groove 8; Rotate the kayser end 10 of pin cap 4 with elongated insertion part 5 importing " L " shape locked grooves 8, trip spring 7, elongated insertion part 5 promptly snaps in kayser end 10; Disassembling section, opposite with the aforesaid operations program.This structure, locking structure are located at the inner chamber of pin cap 4, have avoided the erosion of air and rainwater, have ensured the Security of equipment operation.
Like Fig. 1, shown in Figure 3, a kind of improvement be said elongated insertion part 5 quantity is set is three, be distributed in pin cap 4 inwalls; It is three that said " L " shape locked groove 8 is provided with quantity, is distributed in insertion end 3 outer walls.This structure, the angular distribution that three built-in elongated insertion parts are 5 one-tenth 120 °, round pin bar 1 whole stressed evenly, good stability.
As shown in Figure 3, another kind of improvement is that the inwall near the lid mouth of said pin cap 4 is provided with dubbin sealing groove 11 and the seal ring that matches.This structure has further been protected locking framework, makes it avoid corroding, and has improved its Security.
Like Fig. 2, shown in Figure 3; Also having a kind of improvement is also to comprise a check lock lever 12; Suitable the joining of spacing of the end face of round pin bar 1 insertion end 3 and pin cap 4 intracavity bottoms when the length of said check lock lever 12 and mounting point, the adjustable side of check lock lever 12 is provided with screw thread, and pin cap 4 is provided with the tapped hole that matches.This structure can be fixed the locked position of elongated insertion part 5, makes 7 one-tenth incompressible states of spring, has strengthened reliability.
With the equivalent transformation of the similar homogeneous structure of model utility, all fall into the protection domain of the utility model.
Claims (4)
1. stealthy lock assembly; Comprise the round pin bar, said round pin bar comprises cap end and insertion end, it is characterized in that: also comprise a round shell type pin cap; The inwall of said pin cap is provided with elongated insertion part; The intracavity bottom center of pin cap is provided with spring seat and the spring that matches, and the outer wall of said insertion end is provided with " L " shape locked groove that matches with elongated insertion part, and said insertion end is provided with an axial center hole that matches with spring.
2. a kind of stealthy lock assembly according to claim 1, it is characterized in that: it is three that said elongated insertion part is provided with quantity, is distributed in the pin cap inwall; It is three that said " L " shape locked groove is provided with quantity, is distributed in the insertion end outer wall.
3. a kind of stealthy lock assembly according to claim 2 is characterized in that: the inwall near the lid mouth of said pin cap is provided with dubbin sealing groove and the seal ring that matches.
4. a kind of stealthy lock assembly according to claim 3; It is characterized in that: also comprise a check lock lever; The spacing of the end face of round pin bar insertion end and pin cap intracavity bottom is suitable when the length of said check lock lever and mounting point; The adjustable side of check lock lever is provided with screw thread, and pin cap is provided with the tapped hole that matches.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204747699U CN202326594U (en) | 2011-11-22 | 2011-11-22 | Invisible pin-lock assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204747699U CN202326594U (en) | 2011-11-22 | 2011-11-22 | Invisible pin-lock assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202326594U true CN202326594U (en) | 2012-07-11 |
Family
ID=46438574
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204747699U Expired - Fee Related CN202326594U (en) | 2011-11-22 | 2011-11-22 | Invisible pin-lock assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202326594U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102410292A (en) * | 2011-11-22 | 2012-04-11 | 邵明龙 | Invisible pin lock assembly |
| CN109157300A (en) * | 2018-07-23 | 2019-01-08 | 深圳市瑞沃德生命科技有限公司 | Pet Anesthesia machine |
-
2011
- 2011-11-22 CN CN2011204747699U patent/CN202326594U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102410292A (en) * | 2011-11-22 | 2012-04-11 | 邵明龙 | Invisible pin lock assembly |
| CN109157300A (en) * | 2018-07-23 | 2019-01-08 | 深圳市瑞沃德生命科技有限公司 | Pet Anesthesia machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120711 Termination date: 20131122 |