Self-closing double-action lock

Abstract

The application discloses a self-closing double-opening lock, which comprises a rotating shaft, a reset spring and a hand opening head. The rotating shaft can be driven to rotate by a motor and one end of the rotating shaft is fixed to the lock head while the other end is coaxially connected to the hand opening head after penetrating through a supporting seat. The reset spring is sleeved outside the rotating shaft and can reset the rotating shaft by using elastic force. The rotating shaft driven to rotate by the motor is connected to the hand opening head and the lock head respectively, and the reset spring is sleeved outside the rotating shaft, so that the rotating shaft can be driven to rotate by the motor and the hand opening head, the lock head can be opened by the motor and the hand opening head, and the reset spring can reset the rotating shaft by using elastic force when the motor or the hand opening head stops driving. The whole structure is simple, and the application is more convenient and safe to use.

Description

[Technical Field]

[0001] This invention relates to the technical field of locks, and in particular to the technical field of self-closing double-opening locks. [Background Technology]

[0002] A diesel engine is an engine that burns diesel fuel to release energy, such as the 12-cylinder water-cooled diesel engine disclosed in invention publication number CN106224094A and the diesel engine disclosed in invention publication number CN116324141B. Diesel engines are characterized by high torque, high thermal efficiency, and good economic performance, and are commonly used in mobile equipment or transportation vehicles (such as trucks, forklifts, cranes, well-working equipment, drilling rigs, excavators, portable generators, and welding trucks), emergency vehicles (such as fire trucks and ambulances), and small processing devices (such as lawnmowers, blowers, generators, compressors, welding machines, and pumps).

[0003] Commonly available valves typically include a valve plate that controls the opening and closing of diesel engine pipelines, and a locking mechanism (with a built-in lock head and locking lever) that locks the valve plate in place. The lock head is usually driven by a motor to rotate, working in conjunction with the locking lever to lock or unlock. However, if the motor malfunctions or is actively or passively de-energized (e.g., during a power outage), the lock head cannot rotate properly, making it difficult for maintenance personnel to perform subsequent repairs. Furthermore, directly manipulating the lock head by hand poses a safety hazard. [Summary of the Invention]

[0004] The purpose of this invention is to solve the problems in the prior art and propose a self-closing double-opening lock that can realize both electric and manual opening of the lock head. The return spring can force the rotating shaft to return to its original position when the motor or manual opening stops. The overall structure is simple and more convenient and safer to use.

[0005] To achieve the above objectives, the present invention proposes a self-closing double-opening lock, comprising a rotating shaft, a return spring, and a manual opening mechanism. The rotating shaft can be driven to rotate by a motor, with one end fixed to the lock head and the other end coaxially connected to the manual opening mechanism after passing through the support base. The return spring is sleeved outside the rotating shaft and can use its elasticity to reset the rotating shaft.

[0006] Preferably, the assembly also includes a connecting head, which comprises a connecting plate and a connecting sleeve. The connecting sleeve is integrally disposed at the bottom of the connecting plate and has a central channel passing through it. The connecting sleeve has several sleeve transverse holes that respectively communicate with the central channel. The top end of the rotating shaft is inserted into the central channel and has several shaft transverse holes that respectively correspond to each sleeve transverse hole. The rotating shaft and the connecting sleeve are detachably connected by fasteners that pass through the corresponding shaft transverse holes and sleeve transverse holes. The handle is mounted on the connecting plate.

[0007] Preferably, the edge of the connecting plate extends outward to form a protrusion with a plate socket, the support base is provided with a seat socket, and the top and bottom ends of the return spring are respectively provided with a top plug and a bottom plug that are inserted into the plate socket and the seat socket.

[0008] Preferably, a top anti-slip sleeve and a bottom anti-slip sleeve are installed on the outside of the top plug and the bottom plug, respectively.

[0009] Preferably, the connecting sleeve is provided with a sleeve annular groove located below each sleeve transverse hole, and an isolation sleeve is fitted outside the sleeve annular groove.

[0010] Preferably, the connecting plate has several lower through holes surrounding the connecting sleeve. The handle includes a handle plate and a handle sleeve. The handle sleeve is integrally disposed on the top of the handle plate and has a hexagonal protrusion on its top surface. The handle plate has several upper through holes corresponding to the lower through holes of each plate. The connecting plate and the handle plate are detachably connected by fasteners passing through the corresponding lower and upper through holes of the plate.

[0011] Preferably, a protective cover is also included, which covers the shaft, the connector and the return spring and has a notch at the top.

[0012] Preferably, the top surface of the support base is also provided with a stepped groove that is larger at the top and smaller at the bottom. The lower section of the stepped groove has a built-in shaft sealing ring and the upper section has a built-in shaft pressure ring. The shaft sealing ring is confined between the rotating shaft, the shaft pressure ring and the support base.

[0013] Preferably, the top surface of the support base is provided with a raised portion, and the stepped groove is disposed on the raised portion.

[0014] Preferably, the outer diameter of the return spring is smaller than the outer diameter of the shaft pressure ring, and the inner diameter of the return spring is larger than the inner diameter of the shaft pressure ring.

[0015] The beneficial effects of this invention are:

[0016] 1) By connecting the self-rotating shaft driven by the motor to the manual switch and the lock respectively, and by sleeved a return spring outside the shaft, the shaft can be driven to rotate electrically by the motor or manually by the manual switch, thus realizing the dual opening of the lock by electric and manual means. The return spring can force the shaft to return to its original position by its elasticity when the motor or the manual switch stops driving. The overall structure is simple and more convenient and safer to use.

[0017] 2) By adding a fastener-fixed connecting head between the hand-held head and the rotating shaft, and by connecting the return spring to the connecting head and the support seat through the top plug and bottom plug located at the top and bottom ends respectively, it can ensure the stable connection of each component and facilitate the quick disassembly, assembly and maintenance of each component.

[0018] 3) By fitting an isolation sleeve on the connector and installing a shaft seal on the top surface of the support, the isolation sleeve and shaft seal can be used to prevent the moving return spring from directly wearing the connector and support.

[0019] 4) By setting a stepped groove with a larger upper part and a smaller lower part on the top surface of the support, a shaft seal ring is built into the lower section of the stepped groove, and a shaft pressure ring is built into the upper section of the stepped groove. The sealing performance can be improved by using the shaft seal ring. At the same time, the shaft pressure ring can cooperate with the rotating shaft and the support to limit the position of the shaft seal ring.

[0020] The features and advantages of the present invention will be described in detail through embodiments and in conjunction with the accompanying drawings. [Attached Image Description]

[0021] Figure 1 This is an installation diagram of the self-closing double-opening lock of the present invention;

[0022] Figure 2 yes Figure 1 Front view with the lock, protective cover, and gears removed;

[0023] Figure 3 This is a cross-sectional view of the self-closing double-opening lock of the present invention;

[0024] Figure 4 This is a bottom view of the connecting head of the self-closing double-opening lock of the present invention;

[0025] Figure 5 yes Figure 4 Sectional view along axis AA;

[0026] Figure 6 This is a top view of the handle of the self-closing double-opening lock of the present invention;

[0027] Figure 7 yes Figure 6 BB-direction sectional view.

[0028] In the diagram: 12-lock head, 2-self-closing double-opening lock, 21-rotating shaft, 22-connecting head, 221-connecting plate, 2211-lower through hole of plate body, 2212-plate body insertion port, 222-connecting sleeve, 2221-sleeve body transverse hole, 2222-sleeve body annular groove, 23-reset spring, 24-manual opening, 241-manual opening plate, 2411-upper through hole of plate body, 242-manual opening sleeve, 2421-hexagonal protrusion, 25-isolation sleeve, 26-protective cover, 27-shaft body sealing ring, 28-shaft body pressure ring, 4-support base.

Detailed Implementation Methods

[0029] See Figures 1 to 7 The present invention relates to a self-closing double-opening lock, comprising a rotating shaft 21, a return spring 23, and a hand switch 24. The rotating shaft 21 can be driven by a motor to rotate, with one end fixed to the lock head 12 and the other end coaxially connected to the hand switch 24 after passing through the support base 4. The return spring 23 is sleeved outside the rotating shaft 21 and can use its elasticity to reset the rotating shaft 21.

[0030] It also includes a connector 22, which includes a connector plate 221 and a connector sleeve 222. The connector sleeve 222 is integrally disposed at the bottom of the connector plate 221 and has a central channel through it. The connector sleeve 222 has several sleeve transverse holes 2221 that are respectively connected to the central channel. The top end of the rotating shaft 21 is inserted into the central channel and has several shaft transverse holes that are respectively connected to each sleeve transverse hole 2221. The rotating shaft 21 and the connector sleeve 222 are detachably connected by fasteners that pass through the corresponding shaft transverse holes and sleeve transverse holes 2221. The handle 24 is mounted on the connector plate 221.

[0031] The edge of the connecting plate 221 extends outward and forms a protrusion with a plate body socket 2212. The support base 4 is provided with a seat body socket. The top and bottom ends of the return spring 23 are respectively provided with a top plug and a bottom plug that are inserted into the plate body socket 2212 and the seat body socket.

[0032] Top anti-slip sleeves and bottom anti-slip sleeves are respectively installed outside the top plug and bottom plug.

[0033] The connecting sleeve 222 is provided with a sleeve annular groove 2222 located below each sleeve transverse hole 2221, and an isolation sleeve 25 is fitted outside the sleeve annular groove 2222.

[0034] The connecting plate 221 has several lower through holes 2211 arranged around the connecting sleeve 222. The hand opening 24 includes a hand opening plate 241 and a hand opening sleeve 242. The hand opening sleeve 242 is integrally arranged on the top of the hand opening plate 241 and has a hexagonal protrusion 2421 on its top surface. The hand opening plate 241 has several upper through holes 2411 that correspond to each of the lower through holes 2211. The connecting plate 221 and the hand opening plate 241 are detachably connected by fasteners that pass through the corresponding lower through holes 2211 and upper through holes 2411.

[0035] It also includes a protective cover 26, which covers the rotating shaft 21, the connecting head 22 and the return spring 23 and has a notch at the top.

[0036] The top surface of the support base 4 is also provided with a stepped groove that is larger at the top and smaller at the bottom. The lower section of the stepped groove has a built-in shaft sealing ring 27 and the upper section has a built-in shaft pressure ring 28. The shaft sealing ring 27 is restricted between the rotating shaft 21, the shaft pressure ring 28 and the support base 4.

[0037] The top surface of the support base 4 is provided with a raised part, and the stepped groove is provided on the raised part.

[0038] The outer diameter of the return spring 23 is smaller than the outer diameter of the shaft pressure ring 28, and the inner diameter of the return spring 23 is larger than the inner diameter of the shaft pressure ring 28.

[0039] Working process of this invention:

[0040] See Figure 1 During operation, the driving force of the motor can be transmitted to the rotating shaft 21 through a transmission mechanism (such as gears), thereby driving the lock head 12 to rotate, so that the lock head 12 can cooperate with the locking rod 11 to complete the locking operation. When the motor stops working, the compound spring 23 can use its elastic force to drive the rotating shaft 21 to rotate, thereby causing the lock head 12 located at the bottom of the rotating shaft 21 to return to its initial position.

[0041] See Figure 3 When the motor malfunctions (e.g., due to motor damage or power outage), if the maintenance worker needs to unlock the locking rod 11 from the locking head 12, a wrench can be placed at the hexagonal protrusion 2421, thereby manually driving the rotating shaft 21 to rotate by turning the handle 24. Furthermore, if the wrench is released from the hexagonal protrusion 2421, the locking head 12 can also be reset by the compound spring 23 (before the locking rod 11 and locking head 12 are locked together).

[0042] The above embodiments are illustrative of the present invention and are not intended to limit the present invention. Any simple modifications to the present invention are within the scope of protection of the present invention.

Claims

1. A self-closing double-opening lock, characterized in that: Includes a rotating shaft (21), a return spring (23), and a hand switch (24). The rotating shaft (21) can be driven to rotate by a motor, with one end fixed to the lock head (12) and the other end coaxially connected to the hand switch (24) after passing through the support base (4). The return spring (23) is sleeved outside the rotating shaft (21) and can use its elasticity to reset the rotating shaft (21). It also includes a connector (22), which includes a connector plate (221) and a connector sleeve (222). The connector sleeve (222) is integrally disposed at the bottom of the connector plate (221) and has a central channel running through it. The connector sleeve (222) has several sleeve transverse holes (2221) that respectively run through the central channel. The top end of the rotating shaft (21) is inserted into the central channel and has several shaft transverse holes that respectively correspond to each sleeve transverse hole (2221). The rotating shaft (21) and the connecting sleeve (222) are detachably connected by fasteners that pass through the corresponding shaft transverse hole and sleeve transverse hole (2221). The handpiece (24) is mounted on the connecting plate (221). The edge of the connecting plate (221) extends outward and forms a protrusion with a plate socket (2212). The support base (4) is provided with a seat socket. The top and bottom ends of the return spring (23) are respectively provided with a top plug and a bottom plug that are inserted into the plate socket (2212) and the seat socket. The connecting sleeve (222) is provided with a sleeve annular groove (2222) located below each sleeve transverse hole (2221), and an isolation sleeve (25) is fitted outside the sleeve annular groove (2222). The top surface of the support base (4) is also provided with a stepped groove that is larger at the top and smaller at the bottom. The lower section of the stepped groove has a built-in shaft sealing ring (27) and the upper section has a built-in shaft pressure ring (28). The shaft sealing ring (27) is restricted between the rotating shaft (21), the shaft pressure ring (28) and the support base (4).

2. The self-closing double-opening lock as described in claim 1, characterized in that: Top anti-slip sleeves and bottom anti-slip sleeves are respectively installed outside the top plug and bottom plug.

3. The self-closing double-opening lock as described in claim 1, characterized in that: The connecting plate (221) is provided with a plurality of plate lower through holes (2211) arranged around the connecting sleeve (222). The hand opening (24) includes a hand opening plate (241) and a hand opening sleeve (242). The hand opening sleeve (242) is integrally arranged on the top of the hand opening plate (241) and has a hexagonal protrusion (2421) on the top surface. The hand opening plate (241) is provided with a plurality of plate upper through holes (2411) respectively corresponding to each plate lower through hole (2211). The connecting plate (221) and the hand opening plate (241) are detachably connected by fasteners that pass through the corresponding plate lower through holes (2211) and plate upper through holes (2411).

4. The self-closing double-opening lock as described in any one of claims 1 to 3, characterized in that: It also includes a protective cover (26), which covers the shaft (21), the connector (22) and the return spring (23) and has a notch at the top.

5. The self-closing double-opening lock as described in claim 4, characterized in that: The top surface of the support base (4) is provided with a raised part, and the stepped groove is provided on the raised part.

6. The self-closing double-opening lock as described in claim 4, characterized in that: The outer diameter of the return spring (23) is smaller than the outer diameter of the shaft pressure ring (28), and the inner diameter of the return spring (23) is larger than the inner diameter of the shaft pressure ring (28).

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