Quick change device for telescopic boom forklift

Abstract

The utility model discloses a telescopic boom forklift quick-change device which comprises a structural part, a telescopic boom pin shaft assembly, an oil cylinder thrust pin shaft assembly, a lock hook shaft assembly, a cam shaft assembly and a locking pin shaft assembly, and the telescopic boom pin shaft assembly and the oil cylinder thrust pin shaft assembly are respectively arranged on the structural part. And the lock hook shaft assembly, the cam shaft assembly and the locking pin shaft assembly are respectively arranged in the structural member. The quick change device is connected with a forklift telescopic arm assembly through the telescopic arm pin shaft assembly and the oil cylinder thrust pin shaft assembly, is connected with an accessory through a structural part, realizes locking of the accessory by a lock hook by rotating the lock hook shaft assembly, and finally quickly locks the cam shaft assembly through the locking pin shaft assembly to complete accessory connection. The quick-change device adopts a structural part welded by high-strength structural steel, so that the overall weight is light, and the structural strength is high; the quick-change device is compact in overall arrangement, small in appearance and convenient to install and use.

Description

Technical Field

[0001] The utility model belongs to the technical field of forklifts, and in particular relates to a quick-change device for a telescopic arm forklift. Background Art

[0002] With the development of the times, the application field of telescopic forklifts is becoming wider and wider, and the working conditions and operating requirements that need to be adapted are increasing. In addition to the standard forks, a variety of operating devices (i.e., operating accessories) have also been born. Such as: multi-functional forks, loading buckets, digging buckets, high-altitude operating fences, hooks, soft bag clamps, holding forks, etc. There is an urgent need for convenient and fast replacement of different operating accessories. A suitable device for quickly connecting operating accessories, i.e. a quick-change device, is needed.

[0003] The patent document with the publication number CN116177452A discloses a replaceable and detachable forklift attachment, wherein a driving assembly is provided on the inner side of the frame, a driving plate is provided on the driving assembly, an adjusting gear is installed on one side of the driving plate, a tooth plate is provided on the inner side of the frame, one end of the adjusting gear is connected to a forklift arm, and a through hole is provided at the top of the forklift arm, a push plate is provided in the limit sleeve, and a reset spring is connected to one side of the push plate, and a top plate is slidably provided on the top of the limit sleeve. When the forklift arm pushes the slot on the push plate to move to the bottom of the limit pin, the limit pin slides downward under the action of its own gravity to limit the forklift arm, and the internal push plate is reset under the action of the reset spring on one side, which is convenient for the rapid installation of the forklift arm, and the adjusting gear is driven to rotate by the tooth plate, so that the adjusting gear drives the forklift arm to adjust the angle. However, the structure of replacing and connecting different attachments is not disclosed.

[0004] The patent document with publication number CN117842520A discloses an accessory bracket assembly, which is composed of a bottom base, a mechanical arm mechanism, an accessory frame assembly, an accessory base fixing assembly and a lifting drive mechanism. In this scheme, by rotating the connecting plate, the rotating shaft, the sleeve and the movable turntable are driven to rotate in turn, and then the three connecting rods are driven to move at the same time. The movement of the connecting rods drives the top block to move. The movement of the three top blocks cooperates with the three limit blocks, so that the top block and the limit block can lock the hole opening and coring accessories. However, the device requires a fastening structure to be set at the position of the limit block corresponding to the lock, and the scope of use is limited. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a telescopic arm forklift quick-change device.

[0006] The utility model is realized through the following technical solutions.

[0007] The utility model provides a telescopic arm forklift quick-change device, comprising a structural member, a telescopic arm pin shaft assembly, a cylinder thrust pin shaft assembly, a lock hook shaft assembly, a cam shaft assembly and a locking pin shaft assembly, wherein the telescopic arm pin shaft assembly and the cylinder thrust pin shaft assembly are respectively arranged on the structural member, and the lock hook shaft assembly, the cam shaft assembly and the locking pin shaft assembly are respectively arranged in the structural member.

[0008] Preferably, the structural member includes a hook, a first locking hook, a protrusion A, a protrusion B and a fixed plate, the hook and the protrusion A are arranged on the upper part of the structural member, the first locking hook is arranged at the bottom of the structural member, the protrusion B is arranged on one side of the structural member, the telescopic arm pin shaft assembly is connected to the structural member through the protrusion A, the cylinder thrust pin shaft assembly is connected to the structural member through the protrusion B, and the locking hook shaft assembly and the camshaft assembly are arranged on the fixed plate.

[0009] Preferably, the lock hook shaft assembly includes a second lock hook, a rotating shaft A and a limit member A, the second lock hook is arranged on the rotating shaft A, the limit member A is arranged on one side of the rotating shaft A, and the rotating shaft A is connected to the structural member.

[0010] Preferably, a connecting member B is provided on the second locking hook, and the connecting member B is connected to the elastic member A.

[0011] Preferably, the camshaft assembly includes a handle, a cam, a rocking plate and a rotating shaft B, the cam is connected to the rotating shaft B, the rocking plate is arranged on one side of the rotating shaft B, the handle is connected to the rocking plate, and the rotating shaft B is connected to the structural member.

[0012] Preferably, hole A and hole B are provided on the rocking plate, and the handle is rotatably connected to the rocking plate.

[0013] Preferably, the locking pin shaft assembly includes a limit member B, an elastic member B, a guide sleeve and a locking pin shaft, the limit member B is connected to the locking pin shaft, the guide sleeve passes through the elastic member B and is connected, and one end of the guide sleeve is connected to the locking pin shaft.

[0014] Preferably, the structural member includes a connecting member A, a groove, a side plate, a connecting plate and a back plate. The connecting member A and the groove are respectively arranged on the inner wall of the structural member. The groove is arranged in a Z shape. The side plate is connected to the connecting plate on both sides, and the back plate is respectively connected to the side plate on both sides.

[0015] Preferably, the telescopic arm pin shaft assembly includes a rotating shaft D and a limit member C, one end of the rotating shaft D is connected to the limit member C, and the rotating shaft D is connected to the structural member; the cylinder thrust pin shaft assembly includes a rotating shaft E and a limit member D, one end of the rotating shaft E is connected to the limit member D, and the rotating shaft E is connected to the structural member.

[0016] The beneficial effects of the utility model are:

[0017] The quick-change device of the utility model is connected to the telescopic arm assembly of the forklift through the telescopic arm pin shaft assembly and the cylinder thrust pin shaft assembly, and is connected to the attachment through the structural parts. The lock hook locks the attachment by rotating the lock hook shaft assembly, and finally the camshaft assembly is quickly locked by the locking pin shaft assembly to complete the attachment connection. The quick-change device adopts structural parts welded with high-strength structural steel, and the overall weight is light and the structural strength is high. The overall layout of the quick-change device is compact, the appearance is small, and it is easy to install and use. The quick-change device of the utility model expands the application field of telescopic arm forklifts and improves the multi-purpose and multi-functional operation attributes of telescopic arm forklifts. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0019] Figure 2 It is a structural schematic diagram of the utility model;

[0020] Figure 3 It is a structural schematic diagram of the utility model;

[0021] Figure 4 It is a structural schematic diagram of the utility model;

[0022] Figure 5 It is a structural schematic diagram of the utility model;

[0023] Figure 6 It is a structural schematic diagram of the camshaft assembly position of the utility model;

[0024] Figure 7 It is a structural schematic diagram of the camshaft assembly position of the utility model;

[0025] Figure 8 It is a structural schematic diagram of the position of the locking pin shaft assembly of the utility model;

[0026] Fig. 9 It is a schematic diagram of the structure of area A of the utility model;

[0027] Fig.10 It is a schematic diagram of the structure of the utility model connected with a forklift telescopic arm assembly and a forklift kit;

[0028] Fig.11 It is a schematic diagram of the forklift attachment's translation fork;

[0029] Fig.12 It is a schematic diagram of the adjustable fork of a forklift attachment;

[0030] Fig.13 It is a schematic diagram of a forklift attachment loading bucket;

[0031] Fig.14 It is a schematic diagram of the excavator bucket of a forklift attachment;

[0032] In the figure: 1-structural member, 11-hook, 12-first lock hook, 13-protrusion A, 14-protrusion B, 15-fixed plate, 16-connecting member A, 17-groove, 18-side plate, 19-connecting plate, 110-back plate, 2-telescopic arm pin assembly, 21-rotating shaft D, 22-limiting member C, 3-cylinder thrust pin assembly, 31-rotating shaft E, 32-limiting member D, 4-lock hook shaft assembly, 41-second lock hook, 42-rotating shaft A, 43-limiting part A, 44-connecting part B, 45-elastic part A, 5-camshaft assembly, 51-handle, 52-cam, 53-rocking plate, 54-rotating shaft B, 55-hole A, 56-hole B, 6-locking pin shaft assembly, 61-limiting part B, 62-elastic part B, 63-guide sleeve, 64-locking pin shaft, 7-translational fork, 8-adjustable fork, 9-loading bucket, 10-digging bucket, 101-forklift telescopic arm assembly. DETAILED DESCRIPTION

[0033] The technical solution of the utility model is further described below, but the scope of protection required is not limited to the description.

[0034] Example:

[0035] like Figures 1 to 14 As shown, a quick-change device for a telescopic arm forklift includes a structural member 1, a telescopic arm pin shaft assembly 2, a cylinder thrust pin shaft assembly 3, a lock hook shaft assembly 4, a cam shaft assembly 5 and a locking pin shaft assembly 6, wherein the telescopic arm pin shaft assembly 2 and the cylinder thrust pin shaft assembly 3 are respectively arranged on the structural member 1, and the lock hook shaft assembly 4, the cam shaft assembly 5 and the locking pin shaft assembly 6 are respectively arranged in the structural member 1.

[0036] The structural member 1 includes a hook 11, a first locking hook 12, a protrusion A13, a protrusion B14 and a fixing plate 15. The hook 11 and the protrusion A13 are arranged on the upper part of the structural member 1, the first locking hook 12 is arranged at the bottom of the structural member 1, the protrusion B14 is arranged on one side of the structural member 1, the telescopic arm pin shaft assembly 2 is connected to the structural member 1 through the protrusion A13, the cylinder thrust pin shaft assembly 3 is connected to the structural member 1 through the protrusion B14, and the locking hook shaft assembly 4 and the camshaft assembly 5 are arranged on the fixing plate 15.

[0037] The lock hook shaft assembly 4 includes a second lock hook 41, a rotating shaft A42 and a limiter A43. The second lock hook 41 is arranged on the rotating shaft A42. The limiter A43 is arranged on one side of the rotating shaft A42. The limiter A43 is an ear plate and can be fixed to the structural member 1 by bolts to prevent the rotating shaft A42 from rotating. The rotating shaft A42 is connected to the fixing plate 15 of the structural member 1.

[0038] The second lock hook 41 is provided with a connecting piece B44, and the connecting piece B44 is connected to an elastic piece A45, one end of the elastic piece A45 is connected to the connecting piece B44, and the other end is connected to the connecting piece A16, and the elastic piece A45 can be a spring. The second lock hook 41 is pressed under the action of the cam 52 being lowered, and the second lock hook 41 can be lifted back to its original position under the action of the elastic piece A45.

[0039] The camshaft assembly 5 includes a handle 51, a cam 52, a rocking plate 53 and a rotating shaft B54. The cam 52 is flat-keyed and arranged on the rotating shaft B54. The rocking plate 53 is arranged on one side of the rotating shaft B54. The handle 51 is connected to the rocking plate 53, and the rotating shaft B54 is connected to the fixed plate 15.

[0040] The rocking plate 53 is provided with a hole A55 and a hole B56, and the handle 51 is rotatably connected to the rocking plate 53. When the locking pin shaft 64 passes through the hole A55, the camshaft assembly 5 is in an unlocked state and can rotate, and at this time the cam 52 is lifted to release the second lock hook 41; when the locking pin shaft 64 passes through the hole B56, the camshaft assembly 5 is in a locked state and cannot rotate, and at this time the cam 52 is lowered to press the second lock hook 41.

[0041] The locking pin shaft assembly 6 includes a limit piece B61, an elastic piece B62, a guide sleeve 63 and a locking pin shaft 64. The limit piece B61 is connected to the locking pin shaft 64. The limit piece B61 can be a screw. The guide sleeve 63 passes through the elastic piece B62 and is connected. The elastic piece B62 can be a spring. One end of the guide sleeve 63 is connected to the locking pin shaft 64. The locking pin shaft 64 can pass through the rocker plate 53 through the hole A55 and the hole B56.

[0042] The structural member 1 includes a connecting member A16, a groove 17, a side plate 18, a connecting plate 19 and a back plate 110. The connecting member A16 and the groove 17 are respectively arranged on the inner wall of the structural member 1. The groove 17 is arranged in a Z shape. The side plate 18 is connected to the two sides of the connecting plate 19. The two sides of the back plate 110 are respectively connected to the side plates 18. The fixing plate 15 is connected to the connecting plate 19. The structural member 1 is made of steel. The limiter B61 can extend into the groove 17 for sliding connection. The limiter B61 can only move in the groove 17. The elastic member B62 makes the limiter B61 enter the a position, and the locking pin shaft assembly 6 pops into the hole A55, that is, the state of unlocking the camshaft assembly 5; it automatically pops up to enter the b position, and the locking pin shaft assembly 6 pops into the hole B56, locking the rotation of the camshaft assembly 5. The structural member 1 is welded with high-strength structural steel.

[0043] The telescopic arm pin shaft assembly 2 includes a rotating shaft D21 and a limit member C22, one end of the rotating shaft D21 is connected to the limit member C22, the limit member C22 is an ear plate, which is fastened to the protrusion A13 by bolts to prevent the rotating shaft D21 from rotating, and the rotating shaft D21 is connected to the protrusion A13; the cylinder thrust pin shaft assembly 3 includes a rotating shaft E31 and a limit member D32, one end of the rotating shaft E31 is connected to the limit member D32, the rotating shaft E31 is connected to the protrusion B14, the limit member D32 is an ear plate, which is fastened to the protrusion B14 by bolts to prevent the rotating shaft E31 from rotating.

[0044] A method for using a quick-change device of a telescopic arm forklift, comprising the following steps:

[0045] S1: hinge the telescopic arm pin assembly 2 of the telescopic arm forklift quick-change device with the telescopic arm of the forklift, hinge the cylinder thrust pin assembly 3 with the telescopic arm fork cylinder of the forklift, hook the shaft body above the forklift attachment through the hook 11, make the axis of the shaft body above the attachment fall into the axis of the hook 11, and make the forklift attachment rise slightly, so that the shaft below the attachment automatically falls into the axis of the first lock hook 12,

[0046] S2: Turn the handle 51 to operate the camshaft assembly 5 to rotate, so that the cam 52 presses against the second lock hook 41 of the lock hook assembly 4, and the locking pin shaft assembly 6 pops out of the through hole B56, locking the rotation of the rotating shaft B54, and the rapid replacement of the attachment can be completed.

[0047] The forklift attachments include a translation fork 7, a distance-adjustable fork 8, a loading bucket 9 and an excavating bucket 10. The forklift telescopic arm assembly 11 includes a forklift telescopic arm and a forklift telescopic arm fork oil cylinder.

Claims

1. A quick-change device for a telescopic forklift, characterized in that: The invention comprises a structural component (1), a telescopic arm pin shaft assembly (2), a cylinder thrust pin shaft assembly (3), a lock hook shaft assembly (4), a cam shaft assembly (5) and a locking pin shaft assembly (6); the telescopic arm pin shaft assembly (2) and the cylinder thrust pin shaft assembly (3) are respectively arranged on the structural component (1); and the lock hook shaft assembly (4), the cam shaft assembly (5) and the locking pin shaft assembly (6) are respectively arranged in the structural component (1).

2. A telescopic forklift quick-change device according to claim 1, characterized in that: The structural member (1) comprises a hook (11), a first locking hook (12), a protrusion A (13), a protrusion B (14) and a fixing plate (15); the hook (11) and the protrusion A (13) are arranged on the upper part of the structural member (1); the first locking hook (12) is arranged on the bottom of the structural member (1); the protrusion B (14) is arranged on one side of the structural member (1); the telescopic arm pin shaft assembly (2) is connected to the structural member (1) via the protrusion A (13); the oil cylinder thrust pin shaft assembly (3) is connected to the structural member (1) via the protrusion B (14); and the locking hook shaft assembly (4) and the cam shaft assembly (5) are arranged on the fixing plate (15).

3. A telescopic forklift quick-change device according to claim 1, characterized in that: The lock hook shaft assembly (4) comprises a second lock hook (41), a rotating shaft A (42) and a stopper A (43), wherein the second lock hook (41) is arranged on the rotating shaft A (42), the stopper A (43) is arranged on one side of the rotating shaft A (42), and the rotating shaft A (42) is connected to the structural component (1).

4. A telescopic forklift quick-change device according to claim 3, characterized in that: A connecting member B (44) is provided on the second locking hook (41), and the connecting member B (44) is connected to the elastic member A (45).

5. A telescopic forklift quick-change device according to claim 1, characterized in that: The camshaft assembly (5) comprises a handle (51), a cam (52), a rocking plate (53) and a rotating shaft B (54); the cam (52) is connected to the rotating shaft B (54); the rocking plate (53) is arranged on one side of the rotating shaft B (54); the handle (51) is connected to the rocking plate (53); and the rotating shaft B (54) is connected to the structural component (1).

6. A telescopic forklift quick-change device according to claim 5, characterized in that: The rocking plate (53) is provided with a hole A (55) and a hole B (56), and the handle (51) is rotatably connected to the rocking plate (53).

7. A telescopic forklift quick-change device according to claim 1, characterized in that: The locking pin shaft assembly (6) comprises a limit piece B (61), an elastic piece B (62), a guide sleeve (63) and a locking pin shaft (64); the limit piece B (61) is connected to the locking pin shaft (64); the guide sleeve (63) penetrates the elastic piece B (62) and is connected; one end of the guide sleeve (63) is connected to the locking pin shaft (64).

8. A telescopic forklift quick-change device according to claim 1, characterized in that: The structural member (1) comprises a connecting member A (16), a groove (17), a side plate (18), a connecting plate (19) and a back plate (110); the connecting member A (16) and the groove (17) are respectively arranged on the inner wall of the structural member (1); the groove (17) is arranged in a Z shape; the side plate (18) is connected to the connecting plate (19) at two sides; and the back plate (110) is respectively connected to the side plate (18) at two sides.

9. A telescopic forklift quick-change device according to claim 1, characterized in that: The telescopic arm pin shaft assembly (2) comprises a rotating shaft D (21) and a limiting member C (22), one end of the rotating shaft D (21) is connected to the limiting member C (22), and the rotating shaft D (21) is connected to the structural member (1). The oil cylinder thrust pin shaft assembly (3) comprises a rotating shaft E (31) and a limiting member D (32), one end of the rotating shaft E (31) is connected to the limiting member D (32), and the rotating shaft E (31) is connected to the structural member (1).

Images