Mechanical lock structure for a steering wheel

Abstract

The utility model belongs to the dustproof technology field of mechanical lock of operator control device, especially relate to a mechanical lock structure for operator control device, include: operator control device, be provided with operating handle, control handle and remove lock cylinder on the operator control device, be provided with lock hole on the remove lock cylinder. The locking release function of control handle is realized through unlocking assembly, ensure that the unlocking action is accurate to point to the target, avoid the influence of misoperation to other components, dustproof mechanism can after the unlocking assembly and the lock column separate automatically fill the gap, effectively block the dust, impurity and enter the cooperation gap between lock hole and lock column, reduce the component wear and tear, prolong the service life of mechanical lock, avoid the locking jam problem caused by impurity simultaneously, guarantee the structure operation stability, positioning assembly can accurately judge the docking state of unlocking assembly and lock column, only when completely docking can the lock column be driven, prevent unlocking failure or structure damage caused by docking not in place, further improve the reliability and safety of unlocking operation.

Description

Technical Field

[0001] This utility model belongs to the field of dustproof technology for mechanical locks of driver controllers, and particularly relates to a mechanical lock structure for driver controllers. Background Technology

[0002] Currently, in fields such as rail transit and industrial control, the driver controller is the core control component for equipment operation, and the reliability of its mechanical lock directly affects the safety and stable operation of the overall system. The current mainstream driver controller mechanical lock structure mainly achieves the locking and unlocking functions of the control handle through the cooperation of the key and the lock cylinder. However, in actual application, it is affected by the usage environment (such as dust, water vapor, mechanical impurities) and the standardization of operation.

[0003] Driver controllers are commonly used in dusty and impurity-prone environments such as rail transit vehicle cabs and industrial workshops. However, existing mechanical locks generally have a fixed gap between the lock cylinder and the lock pin, and lack an effective sealing and dustproof mechanism. After the unlocking component (such as the key) is removed, external dust, metal shavings, oil, and other impurities can easily enter the lock cylinder through this gap and accumulate on the mating surfaces of the lock pin and the lock cylinder, as well as key parts such as the transmission groove. After long-term use, these impurities will aggravate the friction and wear of the lock pin during rotation, leading to a decrease in the sensitivity of the lock cylinder. At the same time, impurities may get stuck at the meshing point between the groove and the key teeth, causing the lock to jam. Frequent disassembly and maintenance are required to restore the function, which not only increases the operation and maintenance costs but also shortens the overall service life of the mechanical lock.

[0004] There is an urgent need for improvement, so we propose a mechanical lock structure for the driver controller. Utility Model Content

[0005] The purpose of this utility model is to address the aforementioned technical problems by providing a mechanical lock structure for a driver's controller, which effectively prevents dust and impurities from entering the lock hole.

[0006] In view of this, the present invention provides a mechanical lock structure for a driver controller, comprising: a driver controller, wherein the driver controller is provided with an operating handle, a control handle, and a release cylinder, the release cylinder is provided with a lock hole, and a lock pin is installed in the lock hole; an unlocking component, the unlocking component is disposed above the lock pin, the unlocking component is used to drive the lock pin and release the lock of the control handle; and a dustproof mechanism, the dustproof mechanism is disposed on the outside of the lock pin, the dustproof mechanism can fill the gap between the lock pin and the release cylinder after the unlocking component is separated from the lock pin.

[0007] Furthermore, the unlocking component includes a slot formed in the side wall of the lock pillar, a handle is provided above the lock pillar, a ring is fixedly connected to the side wall of the handle, and a block is fixedly connected to the inner side of the ring.

[0008] Furthermore, the insertion ring is movably inserted into the locking pin, and the locking block corresponds to the locking slot.

[0009] Furthermore, the dustproof mechanism includes a sealing ring sleeved on the outer wall of the lock pin, a rubber ring fixedly connected to the inner wall of the sealing ring, the inner wall of the rubber ring abutting against the outer wall of the lock pin, and a first spring sleeved on one end of the lock pin, the two ends of the first spring being fixedly connected to the side wall of the sealing ring and the corresponding inner wall of the lock hole, respectively.

[0010] Furthermore, the sealing ring is movably connected to the lock hole, and the top of the sealing ring corresponds to the insertion ring.

[0011] Furthermore, a retaining ring is fixedly connected to the lock hole port, and the top of the sealing ring abuts against the bottom side of the retaining ring.

[0012] Furthermore, it also includes a positioning component, which includes an internal groove inside the locking pin. Both sides of the internal groove are provided with through grooves, and each of the two through grooves contains a stop ball. The diameter of the stop ball is larger than the inner diameter of the through groove. A second spring is installed between the two stop balls, and the two ends of the second spring abut against the outer walls of the two stop balls respectively. The inner wall of the insertion ring is symmetrically provided with mating grooves, which correspond to the stop balls.

[0013] The beneficial effects of this utility model are: The unlocking component enables the control handle to release its lock, ensuring precise targeting during unlocking and preventing accidental operation from affecting other components. The dustproof mechanism automatically fills the gap after the unlocking component separates from the locking cylinder, effectively preventing dust and impurities from entering the mating gap between the keyhole and the locking cylinder, reducing component wear, extending the lifespan of the mechanical lock, and preventing locking jams caused by impurities, thus ensuring structural stability. The positioning component accurately determines the docking status of the unlocking component and the locking cylinder, allowing the locking cylinder to be driven only when fully docked, preventing unlocking failure or structural damage due to improper docking, further improving the reliability and security of the unlocking operation. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of a mechanical lock structure for a driver controller proposed in this utility model; Figure 2 This is an exploded structural diagram of the unlocking component of a mechanical lock structure for a driver controller proposed in this utility model; Figure 3 This is a schematic diagram of the insert ring structure of a mechanical lock structure for a driver controller proposed in this utility model; Figure 4 This is a schematic diagram of the cross-sectional structure of the insert ring and locking pin of a mechanical lock structure for a driver controller proposed in this utility model; Figure 5This is a schematic diagram of the lock pin assembly structure of a mechanical lock structure for a driver controller proposed in this utility model; Figure 6 This is a schematic diagram of the mechanical lock structure of a prior art driver controller, as proposed in this utility model. The markings in the diagram are as follows: 1. Driver's controller; 11. Operating handle; 12. Control handle; 13. Lock release cylinder; 14. Retaining ring; 2. Lock hole; 21. Lock pin; 22. Slot; 23. Handle; 24. Insert ring; 25. Locking block; 3. Sealing ring; 31. Rubber ring; 32. First spring; 4. Internal groove; 41. Through groove; 42. Second spring; 43. Abutting ball; 44. Connecting groove. Detailed Implementation

[0015] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0016] In the description of this application, it should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. For ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0017] It should be noted that the terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and are not limited in number; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0018] It should be noted that in the description of this application, the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this application. The directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0019] It should be noted that, in this application, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0020] Reference Figures 1 to 6 A mechanical lock structure for a driver controller, comprising: Driver controller 1, the driver controller 1 is provided with an operating handle 11, a control handle 12 and a lock release cylinder 13, the lock release cylinder 13 is provided with a lock hole 2, and a lock pin 21 is installed in the lock hole 2; It should be noted here that the lock cylinder 21 in this application is a lock cylinder in the prior art, and the mortise ring 24 is used as a key in the prior art. The process of unlocking the mechanical lock by inserting the mortise ring 24 into the lock cylinder 21 is a known technology, as shown in Chinese Patent (CN219012266U Mechanical Lock with Lock Tongue). Other connection structures of the lock cylinder 21 are disclosed in that patent, such as... Figure 6 As shown, it will not be elaborated upon here.

[0021] The unlocking component is located above the locking pin 21 and is used to drive the locking pin 21 to release the lock of the control handle 12. The dustproof mechanism is located on the outside of the lock cylinder 21. After the unlocking component is separated from the lock cylinder 21, the dustproof mechanism can fill the gap between the lock cylinder 21 and the unlocking cylinder 13.

[0022] This application integrates an operating handle 11, a control handle 12, and a release cylinder 13 into the driver controller 1. In daily use, the operator uses the operating handle 11 to perform basic operations on the driver controller 1, while the control handle 12 remains locked to ensure equipment safety. When it is necessary to unlock the control handle 12, the unlocking action is triggered by the locking pin 21 inside the release cylinder 13. After the unlocking component aligns with the locking pin 21 inside the release cylinder 13, external force drives the locking pin 21 to move along the lock hole 2. During the movement of the locking pin 21, the locking release mechanism inside the driver controller 1 is triggered, thereby releasing the locking restriction of the control handle 12. After the unlocking component separates from the locking pin 21, the dustproof mechanism automatically activates to fill the gap between the locking pin 21 and the release cylinder 13, preventing external impurities from entering the channel. The positioning component plays a role during the alignment stage of the unlocking component and the locking pin 21. It determines whether the two are fully aligned through structural matching. Only when they are properly aligned can the unlocking component effectively drive the locking pin 21, avoiding unlocking failure caused by alignment deviation.

[0023] In the example of this application, the unlocking component includes a slot 22 opened on the side wall of the locking post 21, a handle 23 is provided above the locking post 21, a ring 24 is fixedly connected to the side wall of the handle 23, and a block 25 is fixedly connected to the inner side of the ring 24.

[0024] As a preferred example of this utility model, when unlocking is required, the operator applies a downward insertion force and a rotational force to the handle 23: first, the insert ring 24 is aligned with the top of the locking pin 21 and inserted, so that the locking block 25 on the inner side of the insert ring 24 gradually approaches the slot 22 on the side wall of the locking pin 21; when the locking block 25 is fully embedded in the slot 22, the handle 23 is rotated, and the handle 23 drives the insert ring 24 to rotate synchronously. The insert ring 24 transmits the rotational force to the locking pin 21 through the engagement relationship between the locking block 25 and the slot 22, and finally releases the locked state of the control handle 12.

[0025] In the example of this application, the insertion ring 24 is movably inserted into the locking pin 21, and the locking block 25 corresponds to the locking slot 22.

[0026] As a preferred example of this utility model, during unlocking, the operator can easily insert the insert ring 24 onto the outside of the locking pin 21 and move it downwards without overcoming the resistance of the fixed connection. After unlocking, the insert ring 24 can be pulled upwards to separate it from the locking pin 21, facilitating the storage and reuse of the unlocking components. When the insert ring 24 is inserted into the locking pin 21, it can only continue to move downwards to the designated position when the locking block 25 and the locking groove 22 are in the same circumferential position. When the handle 23 is turned, the locking block 25 can be stably locked in the locking groove 22, avoiding slippage or displacement during transmission, ensuring that the locking pin 21 can move synchronously with the handle 23, and ensuring the accurate realization of the unlocking action.

[0027] In the example of this application, the dustproof mechanism includes a sealing ring 3 sleeved on the outer wall of the locking pin 21, a rubber ring 31 fixedly connected to the inner wall of the sealing ring 3, the inner wall of the rubber ring 31 abutting against the outer wall of the locking pin 21, and a first spring 32 sleeved on one end of the locking pin 21. The two ends of the first spring 32 are fixedly connected to the side wall of the sealing ring 3 and the inner wall of the corresponding lock hole 2, respectively.

[0028] As a preferred example of this utility model, when the locking ring 24 of the unlocking assembly is inserted downward into the locking pin 21, the bottom of the locking ring 24 first contacts the top of the sealing ring 3 and applies downward pressure; under the action of pressure, the sealing ring 3 moves downward along the axis of the lock hole 2, while compressing the first spring 32 sleeved on the locking pin 21. The spring generates upward elastic potential energy due to deformation; during this process, the rubber ring 31 on the inner wall of the sealing ring 3 is always in close contact with the outer wall of the locking pin 21. Because the rubber ring 31 is elastic, it can deform synchronously with the movement of the sealing ring 3, always maintaining a sealed contact with the outer wall of the locking pin 21, preventing dust from entering the interior of the lock hole 2 through the gap between the rubber ring 31 and the locking pin 21 during the movement of the sealing ring 3; after the sealing ring 3 moves downward, The gap between the top of the locking pin 21 and the unlocking cylinder 13 is exposed, providing space for the insertion ring 24 to dock with the locking pin 21, ensuring that the unlocking operation can proceed normally. After unlocking, the insertion ring 24 is pulled upward, and the downward pressure on the sealing ring 3 disappears. The first spring 32 releases its elastic potential energy, generating an upward thrust to push the sealing ring 3 upward along the axis of the lock hole 2 until the top of the sealing ring 3 contacts the retaining ring 14 at the port of the lock hole 2, returning to its initial position. At this time, the sealing ring 3 completely covers the gap between the locking pin 21 and the unlocking cylinder 13, and the rubber ring 31 forms a double seal with the outer wall of the locking pin 21 and the inner wall of the lock hole 2, preventing dust, moisture and other impurities from entering the lock hole 2, thus achieving automatic restoration of the dustproof function.

[0029] In the example of this application, the sealing ring 3 is movably connected to the lock hole 2, and the top of the sealing ring 3 corresponds to the insertion ring 24.

[0030] As a preferred example of this utility model, when the insert ring 24 is inserted downwards, the sealing ring 3 can move smoothly downwards under the pressure of the insert ring 24 without getting stuck due to the fixed connection with the lock hole 2. This avoids excessive resistance or component jamming when the insert ring 24 is inserted, ensuring the smoothness of the unlocking operation. Furthermore, the correspondence between the top of the sealing ring 3 and the insert ring 24 indirectly ensures the alignment of the initial position of the sealing ring 3 with the port of the lock hole 2. This allows the sealing ring 3 to accurately cover the gap between the lock pin 21 and the unlocking cylinder 13 after resetting, avoiding dustproof gaps caused by the offset of the sealing ring 3, and further improving the reliability of the dustproof effect.

[0031] In the example of this application, a retaining ring 14 is fixedly connected to the port of the lock hole 2, and the top of the sealing ring 3 abuts against the bottom side of the retaining ring 14.

[0032] As a preferred example of this utility model, when the unlocking component is pulled out, the first spring 32 pushes the sealing ring 3 upward until the top of the sealing ring 3 is in close contact with the bottom side of the retaining ring 14. The retaining ring 14 generates a downward blocking force on the sealing ring 3, restricting the sealing ring 3 from continuing to move upward, so that the sealing ring 3 can stay in the same position after each reset, ensuring that the relative position of the sealing ring 3, the lock pin 21, and the lock hole 2 is consistent, avoiding dustproof failure caused by over-reset or under-reset of the sealing ring 3, and ensuring the consistency and reliability of the dustproof seal each time.

[0033] In the example of this application, a positioning component is also included. The positioning component includes an internal groove 4 opened inside the locking pin 21. Through grooves 41 are provided on both sides of the internal groove 4. A stop ball 43 is placed in each of the two through grooves 41. The diameter of the stop ball 43 is larger than the inner diameter of the through groove 41. A second spring 42 is installed between the two stop balls 43. The two ends of the second spring 42 abut against the outer walls of the two stop balls 43 respectively. A mating groove 44 is symmetrically opened on the inner wall of the insertion ring 24. The mating groove 44 corresponds to the stop ball 43.

[0034] As a preferred example of this utility model, when the locking ring 24 of the unlocking component is inserted downwards into the locking pin 21, the inner wall of the ring 24 first contacts the ball 43 in the through groove 41 of the locking pin 21. Due to the elastic thrust of the second spring 42, the ball 43 always tends to pop outwards. The inner wall of the ring 24 exerts inward pressure on the ball 43, compressing the second spring 42 and causing the ball 43 to retract into the through groove 41. At this time, the ring 24 can continue to move downwards. When the ring 24 moves to the position where the mating groove 44 aligns with the through groove 41, the pressure from the inner wall of the ring 24 on the ball 43 disappears, the second spring 42 releases its elastic potential energy, pushing the ball 43 outwards. Part of the ball 43 embeds into the mating groove 44 on the inner wall of the ring 24, producing a slight jamming sensation. The operator can feel this by touch. The feedback mechanism determines that the insert ring 24 has fully engaged with the locking pin 21, preventing the locking block 25 from failing to engage with the slot 22 or causing slippage during subsequent unlocking due to incomplete engagement. After the abutment ball 43 engages with the docking groove 44, it forms a temporary fixing structure between the insert ring 24 and the locking pin 21, restricting the relative rotation or axial movement between them. When the operator rotates the handle 23 to drive the locking pin 21, the insert ring 24 will not shift relative to the locking pin 21 due to external force, ensuring a stable engagement between the locking block 25 and the slot 22. After unlocking, when the insert ring 24 is pulled upwards, the inner wall of the insert ring 24 will exert inward pressure on the abutment ball 43, compressing the second spring 42 again, causing the abutment ball 43 to retract into the through groove 41, allowing the insert ring 24 to smoothly separate from the locking pin 21 without affecting subsequent engagement.

[0035] The embodiments of this application have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A mechanical lock structure for a driver controller, characterized in that... ,include: The driver controller (1) is provided with an operating handle (11), a control handle (12) and a release cylinder (13). The release cylinder (13) is provided with a lock hole (2) and a lock pin (21) is installed in the lock hole (2). An unlocking component is disposed above the locking post (21) and is used to drive the locking post (21) to release the lock of the control handle (12); A dustproof mechanism is provided on the outside of the lock post (21). The dustproof mechanism can fill the gap between the lock post (21) and the unlocking cylinder (13) after the unlocking component is separated from the lock post (21).

2. The mechanical lock structure for a driver controller according to claim 1, characterized in that, The unlocking component includes a slot (22) opened on the side wall of the lock post (21), a handle (23) is provided above the lock post (21), a plug ring (24) is fixedly connected to the side wall of the handle (23), and a locking block (25) is fixedly connected to the inner side of the plug ring (24).

3. The mechanical lock structure for a driver controller according to claim 2, characterized in that, The insertion ring (24) is movably inserted into the locking pin (21), and the locking block (25) corresponds to the locking groove (22).

4. The mechanical lock structure for a driver controller according to claim 1, characterized in that, The dustproof mechanism includes a sealing ring (3) sleeved on the outer wall of the lock post (21), and a rubber ring (31) fixedly connected to the inner wall of the sealing ring (3). The inner wall of the rubber ring (31) abuts against the outer wall of the lock post (21). A first spring (32) is sleeved on one end of the lock post (21), and the two ends of the first spring (32) are fixedly connected to the side wall of the sealing ring (3) and the inner wall of the corresponding lock hole (2) respectively.

5. A mechanical lock structure for a driver controller according to claim 4, characterized in that, The sealing ring (3) is movably connected to the lock hole (2), and the top of the sealing ring (3) corresponds to the insertion ring (24).

6. The mechanical lock structure for a driver controller according to claim 5, characterized in that, A retaining ring (14) is fixedly connected to the port of the lock hole (2), and the top of the sealing ring (3) abuts against the bottom side of the retaining ring (14).

7. A mechanical lock structure for a driver controller according to claim 6, characterized in that, It also includes a positioning component, which includes an internal groove (4) inside the locking pin (21), through grooves (41) on both sides of the internal groove (4), and a stop ball (43) in each of the two through grooves (41). The diameter of the stop ball (43) is larger than the inner diameter of the through groove (41). A second spring (42) is installed between the two stop balls (43). The two ends of the second spring (42) abut against the outer walls of the two stop balls (43). A docking groove (44) is symmetrically opened on the inner wall of the insertion ring (24), and the docking groove (44) corresponds to the stop ball (43).

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