Pin shaft locking device

Abstract

The utility model discloses a pin shaft locking device which comprises a base, clamping blocks arranged in a mirror image mode are arranged on the base in a sliding mode, clamping grooves are formed in the inner sides of the clamping blocks, and the clamping grooves are matched with one another to form a locking hole matched with a pin shaft. A driving plate is arranged below the base, the driving plate can be driven by a driving source to move up and down, and the driving plate drives the clamping blocks to synchronously move towards each other or away from each other through a connecting assembly so as to clamp or release the pin shaft. The pin shaft clamping device has the advantages that design is exquisite, the device is reasonable in layout, the driving plate drives the clamping blocks to move face to face or back to back through the connecting plate to clamp or release the pin shaft, operation is easy and convenient, stability is high, meanwhile, maintenance is not needed in the whole process, and work efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pin shaft application, and in particular to a pin shaft locking device. Background Art

[0002] Pins are a type of standardized fastener that can be used for static fixed connections or for relative movement with the connected parts. They are mainly used at the hinge of two parts to form a hinge connection. Pins are usually locked with a cotter pin, which is reliable and easy to disassemble.

[0003] For example, the authorization announcement number CN210949450U discloses a pin locking structure, including a first column, a limited block fixedly connected to the top of the first column, a first pin disposed inside the first column, and the first pin slidably connected to the first column, a first limited groove disposed near the top of the first pin side wall, a first handle fixedly connected to the end face of the first pin, and a first through hole disposed through the first pin side wall. However, the structure is complex, has poor stability, is difficult to unlock, and has great limitations. In addition, the spring will age in the case of long-term use, and needs to be replaced regularly, which increases enterprise costs and is not conducive to enterprise development. Utility Model Content

[0004] The utility model aims to overcome the deficiencies in the prior art and provide a pin locking device.

[0005] The purpose of the utility model is achieved through the following technical solutions:

[0006] A pin shaft locking device comprises a base, on which a clamping block arranged in a mirror image is slidably provided, and a card groove is opened on the inner side of the clamping block, and the card grooves cooperate with each other to form a locking hole adapted for the pin shaft; a driving plate is provided below the base, and the driving plate can be driven up and down by a driving source, and the driving plate drives the clamping block to move synchronously toward or away from each other through a connecting component to complete the clamping or release of the pin shaft.

[0007] Preferably, the connecting assembly includes a V-shaped connecting plate, a rotating shaft is pivoted at the midpoint of the connecting plate, and the rotating shaft is fixed on the base; a first waist-shaped groove is opened at one end of the connecting plate, and a first pin is provided on the clamping block, and the first pin at least partially extends and is placed in the first waist-shaped groove; a second waist-shaped groove is opened at the other end of the connecting plate, and a second pin is provided on the driving plate, and the second pin at least partially extends and is placed in the second waist-shaped groove.

[0008] Preferably, the connecting plate includes at least a first inclined end and a second inclined end formed integrally, the angle formed by the central axes of the first inclined end and the second inclined end is an obtuse angle, the rotation axis is located at the junction of the first inclined end and the second inclined end, the first waist-shaped groove is arranged on the first inclined end, and the second waist-shaped groove is arranged on the second inclined end.

[0009] Preferably, the base is rectangular in shape, and a protrusion with a T-shaped cross section is fixedly provided on the base, and a T-shaped slot matching the protrusion is provided on the clamping block.

[0010] Preferably, a positioning groove for positioning the pin is provided at the midpoint of the raised portion.

[0011] Preferably, the central axis of the base is parallel to the central axis of the driving plate.

[0012] Preferably, the clamping block at least includes a horizontal end, a vertical end and a sliding end, the sliding end is slidably arranged on the raised portion, the vertical end is provided with the T-slot, the horizontal end is provided with the slot, and the thickness of the horizontal end is equal to the height of the slot on the pin shaft.

[0013] The beneficial effects of the utility model are mainly reflected in:

[0014] 1. The design is exquisite and the layout of the device is reasonable. The driving plate drives the clamping blocks to move toward or away from each other through the connecting plate to complete the clamping or release of the pin shaft. The operation is simple and convenient, with high stability. At the same time, no maintenance is required throughout the process, which improves work efficiency;

[0015] 2. The sliding end is slidably set on the raised part, which can make the clamp slide stably on the base to avoid shaking, and improve the accuracy of the clamp clamping the pin. In addition, since the thickness of the horizontal end is equal to the height of the bayonet on the pin, the horizontal end can lock the pin to prevent it from shaking. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The technical solution of the utility model is further described below in conjunction with the accompanying drawings:

[0017] Figure 1 : A three-dimensional diagram of a preferred embodiment of the utility model. DETAILED DESCRIPTION

[0018] The present invention will be described in detail below in conjunction with the specific embodiments shown in the accompanying drawings. However, these embodiments are not limited to the present invention, and any structural, methodological, or functional changes made by a person skilled in the art based on these embodiments are all within the scope of protection of the present invention.

[0019] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0020] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0021] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0022] like Figure 1 As shown, the utility model discloses a pin shaft locking device, including a base 1, on which a clamp block 2 is slidably provided in a mirror image, and a clamping groove 21 is provided on the inner side of the clamp block 2, and the clamping grooves 21 cooperate with each other to form a locking hole adapted to the pin shaft 100. Specifically, the base 1 is rectangular, and a protrusion 11 with a T-shaped cross section is fixedly provided on it, and a T-shaped slot 20 adapted to the protrusion 11 is provided on the clamp block 2. In addition, in the above, a positioning groove 12 for positioning the pin shaft 100 is provided at the midpoint of the protrusion 11. The clamp block 2 at least includes a horizontal end 22, a vertical end 23 and a sliding end 24, and the sliding end 24 is slidably provided on the protrusion 11, the T-shaped slot 20 is provided on the vertical end 23, and the clamping groove 21 is provided on the horizontal end 22, and the thickness of the horizontal end 22 is equal to the height of the bayonet 101 on the pin shaft 100.

[0023] The sliding end 24 is slidably set on the raised portion 11, which can make the clamp 2 slide stably on the base 1 to avoid shaking, thereby improving the accuracy of the clamp 2 clamping the pin 100. In addition, since the thickness of the horizontal end 22 is equal to the height of the snap-on 101 on the pin 100, the horizontal end can lock the pin 100 to prevent it from shaking.

[0024] A driving plate 3 is provided below the base 1, and the central axis of the base 1 is parallel to the central axis of the driving plate 3. The driving plate 3 can be driven up and down by a driving source. In a preferred embodiment, the driving source is a driving cylinder. Of course, the driving source can also be other driving structures, which all belong to the protection scope of the utility model and will not be described in detail here. In addition, the driving source and the driving plate 3 can be quickly connected, such as screw connection, etc. When the device is not needed to work, it can be disassembled and used in other scenarios, so that its value is maximized and the cost of the enterprise can be reduced.

[0025] The driving plate 3 drives the clamping block 2 to move toward or away from each other synchronously through the connecting assembly 4, thereby clamping or releasing the pin shaft 100. In the above, the connecting assembly 4 includes a V-shaped connecting plate 41, a rotating shaft 42 is pivotally provided at the midpoint of the connecting plate 41, and the rotating shaft 42 is fixedly provided on the base 1; a first waist-shaped groove 43 is provided at one end of the connecting plate 41, and a first latch 44 is provided on the clamping block 2, and the first latch 44 at least partially extends and is placed in the first waist-shaped groove 43; a second waist-shaped groove 45 is provided at the other end of the connecting plate 41, and a second latch 46 is provided on the driving plate 3, and the second latch 46 at least partially extends and is placed in the second waist-shaped groove 45. In the above, the driving plate drives the clamping block 2 to move toward or away from each other through the connecting plate 41, which is simple and convenient to operate and has high stability. At the same time, no maintenance is required throughout the process, thereby improving work efficiency.

[0026] In this preferred embodiment, the connecting plate 41 includes at least an integrally formed first inclined end 47 and a second inclined end 48, the angle formed by the central axes of the first inclined end 47 and the second inclined end 48 is an obtuse angle, the rotating axis 42 is located at the junction of the first inclined end 47 and the second inclined end 48, the first waist-shaped groove 43 is arranged on the first inclined end 47, and the second waist-shaped groove 45 is arranged on the second inclined end 48.

[0027] It should be understood that although this specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each implementation mode may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

[0028] The series of detailed descriptions listed above are only specific descriptions of feasible implementation methods of the utility model. They are not intended to limit the protection scope of the utility model. Any equivalent implementation methods or changes that do not deviate from the technical spirit of the utility model should be included in the protection scope of the utility model.

Claims

1. Pin locking device, including base (1), Features: A clamping block (2) arranged in a mirror image is slidably disposed on the base (1), and a clamping groove (21) is provided on the inner side of the clamping block (2), and the clamping grooves (21) cooperate with each other to form a locking hole adapted for the pin shaft (100); a driving plate (3) is provided below the base (1), and the driving plate (3) can be driven by a driving source to move up and down, and the driving plate (3) drives the clamping block (2) to move synchronously toward or away from each other through a connecting assembly (4), thereby completing the clamping or releasing of the pin shaft (100).

2. The pin locking device according to claim 1, Features: The connecting assembly (4) comprises a V-shaped connecting plate (41), a rotating shaft (42) being pivotally provided at the midpoint of the connecting plate (41), and the rotating shaft (42) being fixedly provided on the base (1); a first waist-shaped groove (43) is provided at one end of the connecting plate (41), a first latch (44) is provided on the clamping block (2), and the first latch (44) at least partially extends and is disposed in the first waist-shaped groove (43); a second waist-shaped groove (45) is provided at the other end of the connecting plate (41), a second latch (46) is provided on the driving plate (3), and the second latch (46) at least partially extends and is disposed in the second waist-shaped groove (45).

3. The pin locking device according to claim 2, Features: The connecting plate (41) comprises at least a first inclined end (47) and a second inclined end (48) which are integrally formed, the angle formed by the central axes of the first inclined end (47) and the second inclined end (48) being an obtuse angle, the rotating shaft (42) being located at the junction of the first inclined end (47) and the second inclined end (48), the first waist-shaped groove (43) being arranged on the first inclined end (47), and the second waist-shaped groove (45) being arranged on the second inclined end (48).

4. The pin locking device according to claim 1, Features: The base (1) is rectangular in shape, and is provided with a protruding portion (11) having a T-shaped cross section, and the clamping block (2) is provided with a T-shaped slot (20) that matches the protruding portion (11).

5. The pin locking device according to claim 4, Features: A positioning groove (12) for positioning the pin shaft (100) is provided at the midpoint of the raised portion (11).

6. The pin locking device according to claim 5, Features: The central axis of the base (1) is parallel to the central axis of the driving plate (3).

7. The pin locking device according to claim 6, Features: The clamping block (2) comprises at least a horizontal end (22), a vertical end (23) and a sliding end (24); the sliding end (24) is slidably arranged on the protruding portion (11); the vertical end (23) is provided with the T-shaped slot (20); the horizontal end (22) is provided with the clamping slot (21); and the thickness of the horizontal end (22) is equal to the height of the clamping slot (101) on the pin shaft (100).

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