Interfitting fork truck lifting plate chain connecting lock

Abstract

The utility model discloses a kind of inter-embedded fork truck hoisting plate type chain connection locks, comprising: hoisting plate type chain, lock hook and lock seat;Lock hook includes connecting block, locking block and installation groove, the first end of connecting block is connected with locking block, and the angle formed between connecting block and locking block is acute angle, installation groove is set in the second end of connecting block, hoisting plate type chain is set in installation groove;Lock seat includes fixed block, the bottom of fixed block has inclined surface, the inclined surface of fixed block is inserted between connecting block and locking block, the first side wall of fixed block is abutted with the side wall of connecting block, the second side wall of fixed block is used to connect portal or carriage of hoisting system.In use, by inserting fixed block into the connecting portion of connecting block, locking block, and hoisting plate type chain is set in installation groove, make lock hook and lock seat mutually embedded locking in the vertical direction of hoisting plate type chain, simple structure, locking firm not easy to disconnect, high bearing capacity, and also convenient maintenance, effectively improve maintenance efficiency.

Description

Technical Field

[0001] This utility model relates to the field of forklift technology, and more specifically, to an interlocking forklift lifting plate type chain connection lock. Background Technology

[0002] Currently, the lifting load transmission components of the lifting system in the forklift industry all use lifting plate chains. Most of these lifting plate chains are connected to the lifting device using screws and connecting lock seats welded to the lifting device components for transmission.

[0003] Due to the increased space occupied by the original structure, taking the existing 3.5-ton forklift lifting chain as an example, the screw is M18, so the minimum height of the connecting lock seat must be greater than 40mm. This necessitates the use of hot-bent M-shaped beams in the design of some masts to allow the carriage to be inserted from below the mast. For masts that can only use straight plate beams and have limited movement clearance, the height of the chain lock seat, as mentioned above, means that the fork carriage can only be inserted from above the mast. Moreover, the sprockets and chain can only be installed after the fork carriage is inserted. This results in the need to remove the sprockets and chain before the fork carriage can be removed during later product maintenance, causing great inconvenience. In addition, the existing lifting plate chain structure connected by screws uses two nuts and requires a certain torque, which is inconvenient to disassemble and assemble and has low construction efficiency.

[0004] Therefore, how to provide an interlocking chain lock for forklift lifting plates has become a technical problem that urgently needs to be solved in this field. Utility Model Content

[0005] One objective of this invention is to provide a new technical solution for an interlocking forklift crane plate chain connection lock.

[0006] According to a first aspect of the present invention, an interlocking forklift lifting plate chain connection lock is provided, comprising: a lifting plate chain, a lock hook, and a lock seat;

[0007] The locking hook includes a connecting block, a locking block, and a mounting groove. The first end of the connecting block is connected to the locking block, and the angle formed between the connecting block and the locking block is an acute angle. The mounting groove is disposed at the second end of the connecting block, and the lifting plate chain is disposed in the mounting groove.

[0008] The lock seat includes a fixing block with an inclined surface at the bottom. The inclined surface of the fixing block is inserted between the connecting block and the locking block. The first side wall of the fixing block abuts against the side wall of the connecting block. The second side wall of the fixing block is used to connect the gantry or carriage of the lifting system.

[0009] Optionally, the locking hook further includes a partition plate that divides the mounting groove into two fixing grooves, and the lifting plate chain is respectively disposed in the two fixing grooves.

[0010] Optionally, the locking hook further includes a first pin and a first mounting hole, the first mounting hole penetrating through the second end of the connecting block, the first pin being disposed within the first mounting hole, and the first pin penetrating through the lifting plate chain.

[0011] Optionally, both the outer and inner corners of the connecting block and the locking block are rounded.

[0012] Optionally, the locking hook further includes a snap-fit ​​groove, which is located on both sides of the connecting block and the locking block respectively;

[0013] The lock base also includes a snap-fit ​​plate, which is disposed on both sides of the fixing block and inserted into the snap-fit ​​groove.

[0014] Optionally, the snap-fit ​​plate includes a first connecting plate and a second connecting plate, the first connecting plate is connected to the second connecting plate, and the inner wall of the first connecting plate and the inner wall of the second connecting plate are both connected to the fixing block, and the second connecting plate is inserted into the snap-fit ​​groove.

[0015] Optionally, the first connecting plate is a rectangular structure, the second connecting plate is a right-angled triangle, and the width of both the first connecting plate and the second connecting plate is greater than the width of the fixing block.

[0016] Optionally, the locking hook further includes a second mounting hole, which extends through the connection between the connecting block and the locking block;

[0017] The lock base also includes a third mounting hole and a second pin. The third mounting hole is disposed on the second connecting plate, and the second pin passes through the third mounting hole and the second mounting hole.

[0018] The beneficial effects of this utility model are as follows:

[0019] This invention connects the first end of a connecting block to a locking block, with the angle between the connecting block and the locking block being an acute angle. A mounting groove is located at the second end of the connecting block, and a lifting plate chain is positioned within the mounting groove. The inclined surface of a fixing block is inserted between the connecting block and the locking block, with the first sidewall of the fixing block abutting against the sidewall of the connecting block. In use, by inserting the fixing block into the connection between the connecting block and the locking block, and positioning the lifting plate chain within the mounting groove, the locking hook and locking seat interlock in the vertical direction of the lifting plate chain. This design features a simple structure, reliable locking that is not easily disengaged, high load-bearing capacity, and convenient maintenance, effectively improving maintenance efficiency.

[0020] Other features and advantages of the present invention will become clear from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. Attached Figure Description

[0021] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments of the present invention and, together with their description, serve to explain the principles of the present invention.

[0022] Figure 1 This is a structural diagram of the interlocking forklift lifting plate chain connection lock of this utility model;

[0023] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0024] Figure 3 This is a structural diagram of the locking hook of this utility model;

[0025] Figure 4 This is a structural diagram of the locking hook of this utility model from another angle;

[0026] Figure 5 This is a structural diagram of the lock base of this utility model;

[0027] Figure 6 This is a structural diagram of the lock seat of this utility model from another angle.

[0028] The diagram shows the following: 1. Lifting plate chain; 2. Locking hook; 21. Connecting block; 22. Locking block; 23. Mounting groove; 24. Divider plate; 25. First mounting hole; 26. Snap-fit ​​groove; 27. Second mounting hole; 3. Lock seat; 31. Fixing block; 32. Inclined surface; 33. Snap-fit ​​plate; 34. First connecting plate; 35. Second connecting plate; 36. Third mounting hole; 37. Second pin; 4. Lifting system. Detailed Implementation

[0029] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that, unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the present invention.

[0030] The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the invention or its application or use.

[0031] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and equipment should be considered part of the specification.

[0032] In all the 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.

[0033] like Figures 1 to 6 As shown, this utility model embodiment provides an interlocking forklift lifting plate chain connection lock, including: lifting plate chain 1, lock hook 2 and lock seat 3.

[0034] The locking hook 2 includes a connecting block 21, a locking block 22, and a mounting groove 23. The first end of the connecting block 21 is connected to the locking block 22, and the angle formed between the connecting block 21 and the locking block 22 is an acute angle. The mounting groove 23 is located at the second end of the connecting block 21, and the lifting plate chain 1 is located in the mounting groove 23.

[0035] It should be noted that the lifting plate chain 1 of this utility model adopts the structure of the prior art, which will not be described here.

[0036] The locking base 3 includes a fixing block 31, the bottom of the fixing block 31 has an inclined surface 32, the inclined surface 32 of the fixing block 31 is inserted between the connecting block 21 and the locking block 22, the first side wall of the fixing block 31 abuts against the side wall of the connecting block 21, and the second side wall of the fixing block 31 is used to connect the gantry or carriage of the lifting system 4.

[0037] Specifically, the vertical cross-section of the locking block 22 is a triangular structure, and the hypotenuse of the locking block 22 abuts against the inclined surface 32 of the fixing block 31. The contact surface formed by the hypotenuse of the locking block 22 and the inclined surface 32 of the fixing block 31 is the right support surface for horizontal torque. This surface is also the bearing surface for bearing vertical load. The contact surface formed by the first side wall of the fixing block 31 and the side wall of the connecting block 21 is the left support surface for horizontal torque. Together, they bear the horizontal torque load and can effectively prevent the locking hook 2 from moving downward and falling off.

[0038] This invention connects the first end of the connecting block 21 to the locking block 22, with the angle between the connecting block 21 and the locking block 22 being an acute angle. A mounting groove 23 is located at the second end of the connecting block 21, and the lifting plate chain 1 is positioned within the mounting groove 23. The inclined surface 32 of the fixing block 31 is inserted between the connecting block 21 and the locking block 22, with the first sidewall of the fixing block 31 abutting against the sidewall of the connecting block 21. In use, by inserting the fixing block 31 into the connection between the connecting block 21 and the locking block 22, and positioning the lifting plate chain 1 within the mounting groove 23, the locking hook 2 and the locking seat 3 are mutually engaged and locked in the vertical direction of the lifting plate chain 1. This design features a simple structure, reliable locking that is not easily disengaged, high load-bearing capacity, and convenient maintenance, effectively improving maintenance efficiency.

[0039] In one embodiment of the interlocking forklift lifting plate chain connection lock of this utility model, such as Figure 3 and Figure 4As shown, the locking hook 2 also includes a partition plate 24, which divides the mounting groove 23 into two fixed grooves, and the lifting plate chain 1 is respectively set in the two fixed grooves.

[0040] Specifically, the rounded corners of the second end of the connecting block 21 are set.

[0041] This utility model divides the mounting groove 23 into two fixed grooves by using a partition plate 24, and sets the lifting plate chain 1 in the two fixed grooves respectively, so that the lifting plate chain 1 can be stably installed in the fixed groove.

[0042] In one embodiment of the interlocking forklift lifting plate chain connection lock of this utility model, such as Figure 3 and Figure 4 As shown, the locking hook 2 also includes a first pin and a first mounting hole 25. The first mounting hole 25 passes through the second end of the connecting block 21. The first pin is disposed in the first mounting hole 25 and passes through the lifting plate chain 1.

[0043] This utility model improves the stability of the installation of the lifting plate chain 1 by passing through the first mounting hole 25 through the second end of the connecting block 21 and setting the first pin in the first mounting hole 25 and passing through the lifting plate chain 1. The first pin provides a fixing and limiting function for the lifting plate chain 1, and when disassembling, only the first pin needs to be removed to separate the lifting plate chain 1 from the connecting block 21, which increases the convenience of maintenance.

[0044] In one embodiment of the interlocking forklift lifting plate chain lock of this utility model, the outer and inner corners of the connecting block 21 and the locking block 22 are rounded. This design will not cause damage to the operator or the lifting parts during installation, maintenance and use.

[0045] In one embodiment of the interlocking forklift lifting plate chain connection lock of this utility model, such as Figure 3 , Figure 4 and Figure 5 As shown, the locking hook 2 also includes a snap-fit ​​groove 26, which is located on both sides of the connecting block 21 and the locking block 22.

[0046] The lock base 3 also includes a snap-fit ​​plate 33, which is disposed on both sides of the fixing block 31 and is inserted into the snap-fit ​​groove 26.

[0047] Specifically, the connecting block 21 and the locking block 22 form a hook-shaped structure, and the snap-fit ​​groove 26 also has a hook-shaped structure.

[0048] This invention further increases the stability of the connection between the fixing block 31 and the connecting block 21 by placing the snap-fit ​​grooves 26 on both sides of the connecting block 21 and the locking block 22, and by setting the snap-fit ​​plates 33 on both sides of the fixing block 31 and inserting the snap-fit ​​plates 33 into the snap-fit ​​grooves 26.

[0049] In one embodiment of the interlocking forklift lifting plate chain connection lock of this utility model, such as Figure 5 and Figure 6 As shown, the snap-fit ​​plate 33 includes a first connecting plate 34 and a second connecting plate 35. The first connecting plate 34 is connected to the second connecting plate 35, and the inner walls of the first connecting plate 34 and the second connecting plate 35 are both connected to the fixing block 31. The second connecting plate 35 is inserted into the snap-fit ​​groove 26.

[0050] Specifically, the structures of the first connecting plate 34 and the second connecting plate 35 are matched with the snap-fit ​​groove 26. The contact surfaces between the side walls of the first connecting plate 34 and the side walls of the second connecting plate 35 and the snap-fit ​​groove 26 are left and right support surfaces that bear lateral torque, further preventing the locking hook 2 from moving downward and falling off.

[0051] This utility model connects the first connecting plate 34 and the second connecting plate 35, so that the inner walls of the first connecting plate 34 and the second connecting plate 35 are both connected to the fixing block 31, and the second connecting plate 35 is inserted into the snap-fit ​​groove 26. This allows the first connecting plate 34 and the second connecting plate 35 to be stably installed in the snap-fit ​​groove 26, ensuring the stability of the connection. The snap-fit ​​groove 26 also provides a guiding function for the first connecting plate 34 and the second connecting plate 35, allowing the inclined surface 32 of the fixing block 31 to be quickly inserted into the connection between the connecting block 21 and the locking block 22, thus achieving the functions of quick installation, locking, and preventing the locking hook 2 from falling off.

[0052] In one embodiment of the interlocking forklift lifting plate chain lock of this utility model, the first connecting plate 34 is a rectangular structure, the second connecting plate 35 is a right triangle, and the width of the first connecting plate 34 and the width of the second connecting plate 35 are both greater than the width of the fixing block 31.

[0053] Specifically, the bottom of the second connecting plate 35 is rounded, and the first connecting plate 34 and the second connecting plate 35 extend to the outside of the fixing block 31.

[0054] This invention sets the width of the first connecting plate 34 and the width of the second connecting plate 35 to be greater than the width of the fixing block 31, thereby enabling the first connecting plate 34 and the second connecting plate 35 to be stably inserted into the snap-fit ​​groove 26.

[0055] In one embodiment of the interlocking forklift lifting plate chain connection lock of this utility model, such as Figure 5 and Figure 6As shown, the locking hook 2 also includes a second mounting hole 27, which passes through the connection between the connecting block 21 and the locking block 22;

[0056] The lock base 3 also includes a third mounting hole 36 and a second pin 37. The third mounting hole 36 is disposed on the second connecting plate 35, and the second pin 37 passes through the third mounting hole 36 and the second mounting hole 27.

[0057] This invention improves the stability of the connection between the fixing block 31 and the connecting block 21 by passing through the second mounting hole 27 through the connection between the connecting block 21 and the locking block 22, and by setting the third mounting hole 36 on the second connecting plate 35, and by passing through the third mounting hole 36 and the second mounting hole 27, the second pin 37 can provide a fixing and limiting function for the fixing block 31, and further improves the convenience of the connection between the fixing block 31 and the connecting block 21. In addition, during disassembly, only the second pin 37 needs to be removed to separate the fixing block 31 from the connecting block 21, which further increases the convenience of maintenance.

[0058] Although specific embodiments of the present invention have been described in detail by way of examples, those skilled in the art should understand that the above examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Those skilled in the art should understand that modifications can be made to the above embodiments without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. An interlocking forklift crane plate type chain connection lock, characterized in that, include: Lifting plate chain, lock hook and lock seat; The locking hook includes a connecting block, a locking block, and a mounting groove. The first end of the connecting block is connected to the locking block, and the angle formed between the connecting block and the locking block is an acute angle. The mounting groove is disposed at the second end of the connecting block, and the lifting plate chain is disposed in the mounting groove. The lock seat includes a fixing block with an inclined surface at the bottom. The inclined surface of the fixing block is inserted between the connecting block and the locking block. The first side wall of the fixing block abuts against the side wall of the connecting block. The second side wall of the fixing block is used to connect the gantry or carriage of the lifting system.

2. The interlocking forklift crane plate type chain connection lock according to claim 1, characterized in that, The locking hook also includes a partition plate, which divides the mounting groove into two fixing grooves, and the lifting plate chain is respectively disposed in the two fixing grooves.

3. The interlocking forklift crane plate type chain connection lock according to claim 2, characterized in that, The locking hook also includes a first pin and a first mounting hole. The first mounting hole passes through the second end of the connecting block, the first pin is disposed in the first mounting hole, and the first pin passes through the lifting plate chain.

4. The interlocking forklift crane plate type chain connection lock according to claim 1, characterized in that, Both the outer and inner corners of the connecting block and the locking block are rounded.

5. The interlocking forklift crane plate type chain connection lock according to claim 1, characterized in that, The locking hook also includes a snap-fit ​​groove, which is located on both sides of the connecting block and the locking block respectively; The lock base also includes a snap-fit ​​plate, which is disposed on both sides of the fixing block and inserted into the snap-fit ​​groove.

6. The interlocking forklift crane plate type chain connection lock according to claim 5, characterized in that, The snap-fit ​​plate includes a first connecting plate and a second connecting plate. The first connecting plate is connected to the second connecting plate, and the inner walls of both the first connecting plate and the second connecting plate are connected to the fixing block. The second connecting plate is inserted into the snap-fit ​​groove.

7. The interlocking forklift crane plate type chain connection lock according to claim 6, characterized in that, The first connecting plate is a rectangular structure, the second connecting plate is a right-angled triangle, and the width of both the first connecting plate and the second connecting plate is greater than the width of the fixing block.

8. The interlocking forklift crane plate type chain connection lock according to claim 7, characterized in that, The locking hook also includes a second mounting hole, which passes through the connection between the connecting block and the locking block; The lock base also includes a third mounting hole and a second pin. The third mounting hole is disposed on the second connecting plate, and the second pin passes through the third mounting hole and the second mounting hole.

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