Anti-movement forklift chassis locking connecting rod pin

Abstract

The utility model discloses an anti-movement forklift chassis locking connecting rod pin, and particularly relates to the technical field of connecting rod pins, which comprises a connecting rod pin main body for locking a forklift chassis to prevent movement. The connecting rod pin body comprises a pin body, an adjusting column is arranged in the rear end of the pin body, the outer portion of the adjusting column is in threaded connection with the inner wall of the rear end of the pin body, a moving column is arranged at the front end of the adjusting column, and a connecting piece is arranged between the moving column and the adjusting column. Through movable clamping of the movable column and the positioning cavity, the adjusting column in threaded connection with the pin body can be operated to drive the movable column and the expansion cone to move forwards, then the expansion cone extrudes and pushes the fixing column on the fixing piece to move outwards, and through threaded connection of the adjusting column and the pin body, the movable column and the expansion cone can be fastened and limited; and the condition that the expansion cone displaces and is separated from the fixing column is avoided, so that the stability and the locking effect of the fixing column can be ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of connecting rod pins, and more specifically to an anti-movement forklift chassis locking connecting rod pin. Background Art

[0002] The forklift chassis locking link pin is an important component in forklift repair and maintenance. It is used to connect or fix the related components of the forklift chassis to ensure its stable operation. Forklift chassis locking is one of the important links in forklift maintenance and maintenance, and is of great significance to ensuring the safety and stability of the forklift.

[0003] As shown in the prior art publication No. CN203362760U, although this prior art uses an elastic clip to achieve axial fixation between the connecting rod pin and the connecting rod to transmit torque, the elastic clip in this prior art is only supported and limited by a spring, which is insufficiently stable and prone to shaking and deflection, thereby affecting the locking performance of the elastic clip. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides an anti-movement forklift chassis locking link pin. Through the movable engagement of the movable column and the positioning cavity, the adjusting column threadedly connected to the pin body can be operated to drive the movable column and the expansion cone to move forward, and then the fixed column on the fixing part is pushed outward by squeezing the expansion cone. Moreover, the movable column and the expansion cone can be tightened and limited by the threaded connection between the adjusting column and the pin body, thereby ensuring the stability and locking effect of the fixed column, thereby solving the problems arising in the above-mentioned background technology.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solutions: an anti-movement forklift chassis locking connecting rod pin, comprising a connecting rod pin body for locking the forklift chassis to prevent movement;

[0006] The connecting rod pin body includes a pin body, an adjusting column is provided inside the rear end of the pin body, the outer portion of the adjusting column is threadedly connected to the inner wall of the rear end of the pin body, a moving column is provided at the front end of the adjusting column, and a connecting piece is provided between the moving column and the adjusting column;

[0007] An expansion cone is installed at the front end of the movable column, the cross section of the expansion cone is set to be conical, and multiple groups of fixing parts for locking are provided on the outside of the expansion cone;

[0008] Each set of fixing parts includes a fixing column arranged inside the front end of the pin body, and the fixing column is arranged on one side of the front end of the expansion cone. A through hole is opened on the side of the pin body corresponding to the fixing column. A limiting ring is provided on the outside of the end of the fixing column close to the expansion cone, and two springs are installed on the side of the limiting ring away from the expansion cone, and the end of the spring away from the limiting ring is fixed to the inner wall of the pin body, and the end of the fixing column away from the expansion cone passes through the through hole and extends to the outside of the pin body.

[0009] In a preferred embodiment, the connecting member includes a positioning cavity opened inside the rear end of the movable column, a movable column is provided inside the positioning cavity, a connecting column is installed at the rear end of the movable column, a connecting hole is opened at one end of the movable column corresponding to the connecting column, and the connecting hole is connected to the positioning cavity, the connecting column passes through the connecting hole and is fixed together with the front end of the adjusting column.

[0010] In a preferred embodiment, a positioning plate is installed inside the front end of the pin body, and the rear end of the positioning plate passes through the expansion cone and extends into the interior of the movable column;

[0011] A positioning hole is provided on one side of the expansion cone corresponding to the positioning plate, a positioning groove is provided on one side of the movable column corresponding to the positioning plate, the front end of the positioning plate is arranged inside the positioning hole, and the rear end of the positioning plate is arranged inside the positioning groove.

[0012] In a preferred embodiment, the cross-sections of the positioning plate, the positioning hole and the positioning groove are all rectangular, and the front and rear outer ends of the positioning plate are in contact with the inner wall of the positioning hole and the inner wall of the positioning groove respectively.

[0013] In a preferred embodiment, two springs are respectively provided on the front and rear sides of the fixing column.

[0014] In a preferred embodiment, an operating column is installed at the rear end of the adjusting column, and the operating column is arranged at the rear side of the pin body.

[0015] The technical effects and advantages of this utility model are:

[0016] 1. Through the movable engagement of the movable column and the positioning cavity, the adjusting column threadedly connected to the pin body can be operated to drive the movable column and the expansion cone to move forward, and then the expansion cone is squeezed to push the fixed column on the fixing part outward. The threaded connection between the adjusting column and the pin body can tighten and limit the movable column and the expansion cone to prevent the expansion cone from being displaced and separated from the fixed column, thereby ensuring the stability and locking effect of the fixed column.

[0017] 2. By setting the cross-section of the positioning plate, the cross-section of the positioning hole and the cross-section of the positioning groove to be rectangular, the positioning plate can achieve the effect of limiting the movable column and the expansion cone by engaging with the positioning hole and the positioning groove, preventing the expansion cone from rotating and reciprocating in contact with the fixed column, reducing friction and ensuring the performance of the fixed column. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a side sectional view of the pin body of the present utility model;

[0020] Figure 3 For the utility model Figure 2 Enlarged view of part A;

[0021] Figure 4 This is a side sectional view of the expansion cone of the utility model;

[0022] Figure 5 It is a side sectional view of the movable column of the present utility model.

[0023] The accompanying drawings are marked as follows: 1. Pin body; 2. Adjusting column; 3. Moving column; 4. Expansion cone; 5. Fixed column; 6. Through hole; 7. Limiting ring; 8. Spring; 9. Positioning cavity; 10. Movable column; 11. Connecting column; 12. Connecting hole; 13. Positioning plate; 14. Positioning hole; 15. Positioning groove; 16. Operating column. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] Refer to the instruction manual Figure 1-5 The utility model provides a locking link pin for a forklift chassis to prevent movement, comprising a link pin body for locking a forklift chassis to prevent movement;

[0026] like Figure 2-4As shown, the connecting rod pin body includes a pin body 1, an adjusting column 2 is provided inside the rear end of the pin body 1, the adjusting column 2 is externally threadedly connected to the inner wall of the rear end of the pin body 1, a moving column 3 is provided at the front end of the adjusting column 2, and a connecting piece is provided between the moving column 3 and the adjusting column 2; an expansion cone 4 is installed at the front end of the moving column 3, the cross section of the expansion cone 4 is set to be conical, and a plurality of groups of fixing parts for locking are provided on the outside of the expansion cone 4; each group of fixing parts includes a fixing column 5 provided inside the front end of the pin body 1, and the fixing column 5 is provided on one side of the front end of the expansion cone 4, a through hole 6 is opened on the side of the pin body 1 corresponding to the fixing column 5, and the fixing column 5 is close to the expansion cone 4 A limiting ring 7 is sleeved on the outside of one end, and two springs 8 are installed on the side of the limiting ring 7 away from the expansion cone 4, and the end of the spring 8 away from the limiting ring 7 is fixed to the inner wall of the pin body 1. Because the two springs 8 are respectively arranged on the front and rear sides of the fixing column 5, the forces at both ends of the limiting ring 7 are balanced, thereby ensuring the displacement stability of the fixing column 5. The end of the fixing column 5 away from the expansion cone 4 passes through the through hole 6 and extends to the outside of the pin body 1. Because an operating column 16 is installed at the rear end of the adjusting column 2, the operating column 16 is arranged on the rear side of the pin body 1, so that the staff can drive the adjusting column 2 to rotate through the operating column 16, thereby achieving the effect of convenient operation of the rotation of the adjusting column 2.

[0027] Through the movable engagement of the movable column 10 and the positioning cavity 9, when the operator rotates the operating column 16 to drive the adjusting column 2 threadedly connected to the pin body 1 to rotate, the adjusting column 2 can push the movable column 3 and the expansion cone 4 thereon to move forward. Since the cross-section of the expansion cone 4 is conical, the front end of the expansion cone 4 can gradually squeeze multiple sets of fixing parts and push the fixing column 5 on the fixing parts to move outward to the outside of the pin body 1, thereby achieving the squeeze locking effect;

[0028] The threaded connection between the adjusting column 2 and the pin body 1 can tighten and limit the movable column 3 and the expansion cone 4, preventing the expansion cone 4 from being displaced and separated from the fixed column 5, thereby ensuring the stability and locking effect of the fixed column 5;

[0029] When the rotating adjustment column 2 drives the movable column 3 and the expansion cone 4 to move outward, the expansion cone 4 separates from the fixed column 5, so that the limiting ring 7 can drive the fixed column 5 to move inward to the inside of the through hole 6 by the rebound force of the spring 8, thereby achieving the effect of conveniently storing the fixed column 5.

[0030] To prevent the moving column 3 from rotating with the adjusting column 2, Figure 4 and 5As shown, the connecting part includes a positioning cavity 9 opened inside the rear end of the movable column 3, a movable column 10 is provided inside the positioning cavity 9, and a connecting column 11 is installed at the rear end of the movable column 10, and a connecting hole 12 is opened at one end of the movable column 3 corresponding to the connecting column 11, and the connecting hole 12 is communicated with the positioning cavity 9, and the connecting column 11 passes through the connecting hole 12 and is fixed together with the front end of the adjusting column 2. Through the movable engagement of the movable column 10 and the positioning cavity 9, the movable column 3 and the adjusting column 2 will not rotate together, so that it is convenient for the staff to rotate the adjusting column 2 to drive the movable column 3 to move forward and backward, and will not drive the movable column 3 and the expansion cone 4 to rotate, thereby avoiding the rotation of the expansion cone 4 and causing wear on the fixed column 5, thereby ensuring the performance of the fixed column 5.

[0031] To ensure the stability of the moving column 3 and the expansion cone 4, as Figure 2 and 4 As shown, a positioning plate 13 is installed inside the front end of the pin body 1, and the rear end of the positioning plate 13 passes through the expansion cone 4 and extends to the inside of the movable column 3; a positioning hole 14 is opened on the side of the expansion cone 4 corresponding to the positioning plate 13, and a positioning groove 15 is opened on the side of the movable column 3 corresponding to the positioning plate 13. The front end of the positioning plate 13 is arranged inside the positioning hole 14, and the rear end of the positioning plate 13 is arranged inside the positioning groove 15. By engaging the positioning plate 13 with the positioning hole 14 and the positioning groove 15, the positioning plate 13 can adjust the movement of the movable column 3 and the expansion cone 4. The movement is limited and guided to ensure the displacement stability of the moving column 3 and the expansion cone 4. Since the cross-section of the positioning plate 13, the cross-section of the positioning hole 14 and the cross-section of the positioning groove 15 are all set to be rectangular, and the front end outer portion and the rear end outer portion of the positioning plate 13 are in contact with the inner wall of the positioning hole 14 and the inner wall of the positioning groove 15 respectively, the positioning plate 13 can limit the moving column 3 and the expansion cone 4 to avoid the rotation of the moving group and the expansion cone 4, and avoid the rotation of the expansion cone 4 and the reciprocating contact with the fixed column 5, thereby reducing friction and ensuring the performance of the fixed column 5.

[0032] Finally: The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. Anti-movement forklift chassis locking link pin, characterized by: It includes a connecting rod pin body for locking the forklift chassis to prevent movement; The connecting rod pin body comprises a pin body (1), an adjusting column (2) is provided inside the rear end of the pin body (1), the outside of the adjusting column (2) is threadedly connected to the inner wall of the rear end of the pin body (1), a moving column (3) is provided at the front end of the adjusting column (2), and a connecting piece is provided between the moving column (3) and the adjusting column (2); An expansion cone (4) is installed at the front end of the movable column (3), the cross section of the expansion cone (4) is set to be conical, and multiple groups of fixing parts for locking are provided on the outside of the expansion cone (4); Each set of fixing parts includes a fixing column (5) arranged inside the front end of the pin body (1), and the fixing column (5) is arranged on one side of the front end of the expansion cone (4). A through hole (6) is opened on the side of the pin body (1) corresponding to the fixing column (5). A limiting ring (7) is sleeved on the outside of the end of the fixing column (5) close to the expansion cone (4), and two springs (8) are installed on the side of the limiting ring (7) away from the expansion cone (4), and the end of the spring (8) away from the limiting ring (7) is fixed to the inner wall of the pin body (1), and the end of the fixing column (5) away from the expansion cone (4) passes through the through hole (6) and extends to the outside of the pin body (1).

2. The anti-movement forklift chassis locking link pin according to claim 1, characterized in that: The connecting member includes a positioning cavity (9) provided inside the rear end of the movable column (3), a movable column (10) is provided inside the positioning cavity (9), a connecting column (11) is installed at the rear end of the movable column (10), a connecting hole (12) is provided at one end of the movable column (3) corresponding to the connecting column (11), and the connecting hole (12) is communicated with the positioning cavity (9), and the connecting column (11) passes through the connecting hole (12) and is fixed to the front end of the adjusting column (2).

3. The anti-movement forklift chassis locking link pin according to claim 1, characterized in that: A positioning plate (13) is installed inside the front end of the pin body (1), and the rear end of the positioning plate (13) passes through the expansion cone (4) and extends to the inside of the moving column (3); A positioning hole (14) is provided on one side of the expansion cone (4) corresponding to the positioning plate (13), a positioning groove (15) is provided on one side of the movable column (3) corresponding to the positioning plate (13), a front end of the positioning plate (13) is arranged inside the positioning hole (14), and a rear end of the positioning plate (13) is arranged inside the positioning groove (15).

4. The anti-movement forklift chassis locking link pin according to claim 3, characterized in that: The cross sections of the positioning plate (13), the positioning hole (14) and the positioning groove (15) are all rectangular, and the front end and rear end of the positioning plate (13) are in contact with the inner wall of the positioning hole (14) and the inner wall of the positioning groove (15), respectively.

5. The anti-movement forklift chassis locking link pin according to claim 1, characterized in that: Two springs (8) are respectively arranged on the front and rear sides of the fixed column (5).

6. The anti-movement forklift chassis locking link pin according to claim 1, characterized in that: An operating column (16) is installed at the rear end of the adjusting column (2), and the operating column (16) is arranged on the rear side of the pin body (1).

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