Telescopic lock head
By designing a retractable lock head, the cone slope and arc surface of the pyramid cone are used to form and position bolts, the adjustment and replacement of the sharp angle length of the lock head is achieved, and the existing locking mechanism is solved for the high initial installation accuracy and wear maintenance of the wear and tear of the existing locking mechanism. The high cost problem reduces maintenance costs and improves the maintenance of the equipment.
Patent Information
- Application Number
- CN202420965664.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-07
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2034-05-07
AI Technical Summary
The existing locking mechanism has high requirements for the initial installation accuracy of the lock head and is prone to failure to cooperate normally due to wear after a long period of use, resulting in high maintenance costs and the troublesome and high cost of replacing the lock head directly.
A retractable lock head is designed, including the seat body, pyramid and positioning bolts. The sharp corners of the pyramid are composed of intersecting cone inclined and arc surfaces. The cone insertion column can move in the seat socket, using the positioning bolts and The reverse top mechanism enables adjustment and fixation of sharp angle lengths, reducing initial installation accuracy requirements, and can replace the pyramids when sharp angles wear to reduce maintenance costs.
It realizes flexible adjustment of sharp angle length, reduces the initial installation accuracy requirements, and only needs to replace the pyramid when sharp angles wear, reducing maintenance costs and improving equipment maintenance.
Smart Images
Figure CN222208512U_ABST
Abstract
Description
[Technical field]
[0001] The utility model relates to the technical field of locks, in particular to the technical field of retractable locks. [Background technology]
[0002] A diesel engine is an engine that burns diesel to release energy, such as the 12-cylinder water-cooled diesel engine disclosed in the invention with publication number CN106224094A and a diesel engine disclosed in the invention with publication number CN116324141B. Diesel engines have the characteristics of large torque, high thermal efficiency and good economic performance, and are usually used in mobile equipment or transportation tools (such as vans, trucks, forklifts, cranes, well repair equipment, drilling rigs, excavators, portable generators and welding trucks), emergency vehicles (such as fire trucks and ambulances) and small processing equipment (such as lawn mowers, blowers, generators, compressors, welders and pumps).
[0003] A valve is a switch controller, which usually includes a valve plate that can adjust the diesel engine pipeline cut-off and open, and a locking mechanism (built-in lock head and lock rod) that can lock the position of the valve plate. However, the existing locking mechanism has high requirements on the initial installation accuracy of the lock head (otherwise the lock rod and the lock head cannot be properly engaged), and the lock head is prone to wear and tear after working for a long time, and it is troublesome and costly to directly replace the lock head. [Utility Model Content]
[0004] The purpose of the utility model is to solve the problems in the prior art and to propose a retractable lock head that can adjust the extension length of the sharp corner. On the one hand, it can reduce the initial installation accuracy requirements, and on the other hand, when the sharp corner is worn, only the corner cone needs to be replaced to reduce maintenance costs.
[0005] To achieve the above purpose, the utility model proposes a retractable lock, including a seat body, a cone and a positioning bolt, one end of the cone is provided with a sharp corner and the other end is plugged into the seat body, and the screw of the positioning bolt is threadedly connected with the cone after being inserted into the seat body.
[0006] Preferably, the sharp corner is composed of intersecting cone slopes and cone arc surfaces.
[0007] Preferably, a conical plug with a conical screw hole is provided on the angle pyramid, and a seat body socket for inserting the conical plug and a seat body long groove passing through the top surface and the seat body socket are provided on the seat body, and the conical screw hole can move along the seat body long groove as the conical plug is inserted into or pulled out of the seat body socket.
[0008] Preferably, a plurality of seat guide grooves are provided on the inner wall of the seat socket, and a plurality of cone ridges corresponding to the seat guide grooves are provided on the cone plug post.
[0009] Preferably, the pyramid can be joined with the seat body to form a teardrop-shaped combination when the pyramid plug post is fully inserted into the seat body socket.
[0010] Preferably, it also includes a reverse push mechanism that can support the positioning bolt to prevent the conical plug from being further inserted into the socket of the seat body.
[0011] Preferably, the anti-top mechanism includes an anti-top support block, an anti-top bolt and an anti-top plate. The anti-top support block is fixed to the top surface of the seat body, the screw rod of the anti-top bolt is connected to the anti-top plate after being threaded through the anti-top screw hole of the anti-top support block, and the anti-top plate is arranged opposite to the screw head of the positioning bolt.
[0012] Beneficial effects of the utility model:
[0013] 1) By providing a sharp corner at one end of the angle pyramid and a cone plug with a cone screw hole at the other end, and providing a seat body socket for the cone plug and a seat body long groove penetrating the top surface and the seat body socket, the depth of the cone plug inserted into the seat body socket can be freely controlled as required, and the seat body and the angle pyramid are fixed in position by using positioning bolts, so as to adjust the extension length of the sharp corner. On the one hand, it can reduce the initial installation accuracy requirements, and on the other hand, when the sharp corner is worn, only the angle pyramid needs to be replaced to reduce maintenance costs;
[0014] 2) By using the intersecting cone slope and cone arc surface to form a sharp corner, the cone arc surface can be used to make the sharp corner slide into the step of the lock rod more easily, and the cone slope can be used to make the sharp corner stably abut against the step;
[0015] 3) By installing an anti-top mechanism composed of an anti-top support block, an anti-top bolt and an anti-top plate on the top of the seat body, the anti-top bolt can be screwed until the anti-top plate supports the screw head of the positioning bolt, thereby preventing the conical column from being further inserted into the seat body socket due to the supporting effect between the sharp corner and the step.
[0016] The features and advantages of the present invention will be described in detail through embodiments in conjunction with the accompanying drawings.
Brief Description of the Drawings
[0017] Figure 1 It is a top view of the retractable lock head of the utility model when it is not locked with the lock rod;
[0018] Figure 2 It is a top view of the retractable lock head of the utility model when it is locked with the lock rod;
[0019] Figure 3 It is a schematic diagram of the explosion of the retractable lock head of the utility model when the positioning bolt is removed.
[0020] In the figure: 11-locking rod, 12-retractable lock, 121-seat body, 1211-seat body socket, 1212-seat body long groove, 1213-seat body guide groove, 122-angle pyramid, 1221-cone inclined surface, 1222-cone arc surface, 1223-cone plug column, 1224-cone screw hole, 1225-cone convex ridge, 123-positioning bolt, 124-anti-top mechanism, 1241-anti-top support block, 1242-anti-top bolt, 1243-anti-top plate, 3-valve plate. [Specific implementation method]
[0021] See also Figures 1 to 3 The telescopic lock of the utility model comprises a seat body 121, a pyramid 122 and a positioning bolt 123. One end of the pyramid 122 is provided with a sharp corner and the other end is plugged into the seat body 121. The screw of the positioning bolt 123 is threadedly connected with the pyramid 122 after being inserted into the seat body 121.
[0022] The pointed corner is formed by the intersecting cone inclined surface 1221 and the cone arc surface 1222 .
[0023] A conical plug 1223 with a conical screw hole 1224 is provided on the angle cone 122, and a seat body socket 1211 for inserting the conical plug 1223 and a seat body long groove 1212 passing through the top surface and the seat body socket 1211 are provided on the seat body 121. The conical screw hole 1224 can move along the seat body long groove 1212 as the conical plug 1223 is inserted into or removed from the seat body socket 1211.
[0024] A plurality of seat guide grooves 1213 are disposed on the inner wall of the seat socket 1211 , and a plurality of cone convex edges 1225 corresponding to the seat guide grooves 1213 are disposed on the cone plug post 1223 .
[0025] When the cone plug post 1223 is completely inserted into the seat body socket 1211 , the corner pyramid 122 can be spliced together with the seat body 121 to form a teardrop-shaped combination.
[0026] The invention also includes an anti-pushing mechanism 124 that can support the positioning bolt 123 to prevent the cone plug 1223 from being further inserted into the seat body socket 1211.
[0027] The anti-top mechanism 124 includes an anti-top support block 1241, an anti-top bolt 1242 and an anti-top plate 1243. The anti-top support block 1241 is fixed to the top surface of the seat body 121. The screw of the anti-top bolt 1242 is connected to the anti-top plate 1243 after being threaded through the anti-top screw hole of the anti-top support block 1241. The anti-top plate 1243 is arranged opposite to the screw head of the positioning bolt 123.
[0028] Working process of this utility model:
[0029] When in use, first adjust the depth of the cone plug 1223 into the seat body socket 1211 as required. The seat body guide groove 1213 and the cone convex ridge 1225 will guide the insertion of the cone plug 1223. Next, insert the bottom end of the screw of the positioning bolt 123 into the seat body 121 along the seat body long groove 1212, and then screw it into the inside of the cone screw hole 1224. Finally, turn the reverse top bolt 1242 until the reverse top sheet 1243 supports the screw head of the positioning bolt 123.
[0030] Since one end of the lock rod 11 is rotatably connected to the housing and is provided with a torsion spring (the torsion spring provides a force for the lock rod 11 to rotate counterclockwise), the retractable lock head 12 (linked with the valve plate 3) is driven to rotate to the point against the step (see FIG. Figure 2 ), it can cooperate with the locking rod 11 and jointly lock the position of the valve plate 3.
[0031] In addition, after being used for a period of time, if the sharp corners are worn out, the corner cone 122 can be directly replaced.
[0032] The above embodiments are intended to illustrate the present invention, not to limit the present invention. Any solution that is a simple transformation of the present invention falls within the protection scope of the present invention.
Claims
1. Retractable lock, characterized by: It comprises a seat body (121), a pyramid (122) and a positioning bolt (123); one end of the pyramid (122) is provided with a sharp corner and the other end is plugged into the seat body (121); the screw rod of the positioning bolt (123) is threadedly connected with the pyramid (122) after being inserted into the seat body (121).
2. The retractable lock according to claim 1, characterized in that: The sharp corner is formed by the intersecting cone inclined surface (1221) and the cone curved surface (1222).
3. The retractable lock according to claim 1, characterized in that: The pyramid (122) is provided with a cone plug post (1223) with a cone screw hole (1224); the seat body (121) is provided with a seat body socket (1211) for inserting the cone plug post (1223) and a seat body long groove (1212) passing through the top surface and the seat body socket (1211); the cone screw hole (1224) can move along the seat body long groove (1212) as the cone plug post (1223) is inserted into or removed from the seat body socket (1211).
4. The retractable lock according to claim 3, characterized in that: The inner wall of the seat body socket (1211) is provided with a plurality of seat body guide grooves (1213), and the cone plug post (1223) is provided with a plurality of cone convex edges (1225) corresponding to each of the seat body guide grooves (1213) one by one.
5. The retractable lock according to claim 1, characterized in that: When the cone plug post (1223) is completely inserted into the seat body socket (1211), the corner pyramid (122) can be spliced together with the seat body (121) to form a water drop-shaped joint body.
6. The retractable lock according to any one of claims 1 to 5, characterized in that: It also includes an anti-pushing mechanism (124) that can support the positioning bolt (123) to prevent the cone plug post (1223) from being further inserted into the seat body socket (1211).
7. The retractable lock according to claim 6, characterized in that: The reverse-top mechanism (124) comprises a reverse-top support block (1241), a reverse-top bolt (1242) and a reverse-top sheet (1243); the reverse-top support block (1241) is fixed on the top surface of the seat body (121); the screw rod of the reverse-top bolt (1242) is connected to the reverse-top sheet (1243) after being screwed through the reverse-top screw hole of the reverse-top support block (1241); and the reverse-top sheet (1243) is arranged opposite to the screw head of the positioning bolt (123).