Multifunctional universal quick-change connector

Abstract

The invention discloses a multifunctional universal quick-change connector, and relates to the technical field of engineering machinery, the multifunctional universal quick-change connector comprises a universal quick-change connector body, the universal quick-change connector body comprises a swing oil cylinder and a connecting mechanism, the swing oil cylinder comprises a cylinder barrel and a piston rod, and an annular notch is formed in the outer surface of the lower end of the cylinder barrel; the inner wall of the annular notch is movably sleeved with a lifting sleeve, a plurality of arc-shaped wiping layers are detachably arranged on the inner wall of the lifting sleeve, an elastic piece is arranged between the lifting sleeve and the annular notch, an elastic connecting block is fixed to the outer surface of the lifting sleeve, and an abutting assembly used in cooperation with the elastic connecting block is arranged on the piston rod. In the using process, dirt such as dust attached to the arc-shaped wiping layer can be prevented from being shaken off in time.

Description

Technical Field

[0001] The invention relates to the technical field of engineering machinery, and in particular to a multifunctional universal quick-change connector. Background Art

[0002] The multifunctional universal quick-change connector, often referred to as the "hydraulic wrist" in the field of excavators, is an important accessory device on excavators. It is a device that can realize the rapid replacement and flexible rotation of excavator attachments. Through advanced mechanical structure and hydraulic control technology, it enables excavator attachments to achieve 360-degree rotation and a certain angle of tilt, thereby greatly expanding the working range and operating capacity of the excavator. The universal quick-change connector is widely used in various excavator operation scenarios, such as construction sites, road construction, mining, etc. In these scenarios, excavators need to face various complex terrains and operating conditions.

[0003] The existing multifunctional universal quick-change connector has certain defects during use. For example, the existing universal quick-change connector is usually provided with a swing cylinder for use in conjunction with it. During use, dust will adhere to the surface of the piston rod on the swing cylinder. Although the swing cylinder is provided with a dust ring to cooperate with the piston rod, the actual use effect is general. Summary of the invention

[0004] The purpose of the present invention is to solve the problems existing in the prior art:

[0005] The swing cylinder on the existing universal quick-change connector is usually provided with a dust ring to cooperate with the piston rod, but the actual use effect is general.

[0006] A multifunctional universal quick-change connector is proposed.

[0007] In order to achieve the above object, the present invention adopts the following technical solutions:

[0008] A multifunctional universal quick-change connector comprises a universal quick-change connector body, wherein the universal quick-change connector body comprises a swinging oil cylinder and a connecting mechanism, wherein the swinging oil cylinder comprises a cylinder barrel and a piston rod, wherein an annular groove is provided on the outer surface of the lower end of the cylinder barrel, a lifting sleeve is movably provided on the inner wall of the annular groove, a plurality of arc-shaped wiping layers are detachably provided on the inner wall of the lifting sleeve, an elastic member is provided between the lifting sleeve and the annular groove, an elastic connecting block is fixed on the outer surface of the lifting sleeve, and a resistance component used in conjunction with the elastic connecting block is provided on the piston rod.

[0009] As a further technical solution of the present invention, the elastic member includes a spring fixed to the upper end of the lifting sleeve and the top of the annular groove, and the spring is movably sleeved on the outer surface of the annular groove.

[0010] As a further technical solution of the present invention, the connecting mechanism includes an upper connecting component and a lower connecting component. The upper connecting component includes a fixed sleeve arranged on the outer surface of the cylinder barrel. Cylinder fixing seats are rotatably arranged on both sides of the fixed sleeve, and the cylinder fixing seats are fixed on the universal quick-change connector body.

[0011] As a further technical solution of the present invention, the lower connecting assembly includes a rod head fixed to the lower end of the piston rod, a pair of connecting ears are arranged on the universal quick-change connector body, and the rod head is rotatably arranged between the two connecting ears.

[0012] As a further technical solution of the present invention, the resistance assembly includes a lifting plate movably arranged on the piston rod, a plurality of arc-shaped protrusions are fixed on one side of the lifting plate close to the elastic connecting block, a connecting unit is arranged between the lifting plate and the piston rod, and a guide unit is arranged between the lifting plate and the cylinder fixing seat.

[0013] As a further technical solution of the present invention, the connecting unit includes a connecting ring fixedly sleeved on the outer surface of the piston rod, an extension plate is fixed on the outer surface of the connecting ring, and the lower end surface of the lifting plate is fixed to the upper end surface of the extension plate.

[0014] As a further technical solution of the present invention, the guide unit includes a U-shaped seat fixed to the outer surface of the cylinder fixing seat, two guide blocks are symmetrically fixed on the inner wall of the U-shaped seat, and guide grooves for cooperating with the guide blocks are provided on both sides of the lifting plate.

[0015] As a further technical solution of the present invention, an arc-shaped connecting block is fixed to the outer surface of each arc-shaped wiping layer, two locking blocks are fixed to the outer surface of each arc-shaped connecting block, and a plurality of locking grooves for cooperating with the locking blocks are provided on the lower end surface of the lifting sleeve.

[0016] As a further technical solution of the present invention, elastic abutment balls are fixed on both sides of each of the engaging blocks, and two abutment grooves for cooperating with the elastic abutment balls are symmetrically provided on the inner wall of each engaging groove.

[0017] As a further technical solution of the present invention, a locking groove extends from a side of each of the locking blocks away from the arc-shaped wiping layer.

[0018] Beneficial effects of the present invention:

[0019] 1. During use, dust will adhere to the surface of the piston rod. When the piston rod works together and retracts into the cylinder, multiple arc-shaped wiping layers will wipe and intercept the dust adhering to the surface of the piston rod. In addition, during the retraction of the piston rod, the cooperation of the resistance component will cause the vibration of the elastic connecting block. With the cooperation of the elastic part, the lifting sleeve and the arc-shaped wiping layer will vibrate in the vertical direction, thereby shaking off the dust intercepted on the surface of the arc-shaped wiping layer in time to avoid the accumulation of dust and other dirt.

[0020] 2. When in use, the engaging block is engaged in the engaging groove. The elastic resistance ball and the resistance groove cooperate to realize the limit fixation of the engaging block, thereby realizing the limit fixation of the arc-shaped connecting block and the arc-shaped wiping layer. When the arc-shaped wiping layer is used to a certain extent and needs to be replaced, it is only necessary to move the engaging block out of the engaging groove, thereby removing the corresponding arc-shaped connecting block and the arc-shaped wiping layer, and replacing them with new ones. The operation is convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the universal quick-change connector body in the present invention;

[0022] Figure 2 Schematic diagram of the connection between the cylinder and the piston rod in the present invention Figure 1 ;

[0023] Figure 3 Schematic diagram of the connection between the cylinder and the piston rod in the present invention Figure 2 ;

[0024] Figure 4 Schematic diagram of the connection between the cylinder and the piston rod in the present invention Figure 3 ;

[0025] Figure 5 Schematic diagram of the connection between the cylinder and the piston rod in the present invention Figure 4 ;

[0026] Figure 6 Schematic diagram of the connection between the lifting sleeve and the elastic connecting block in the present invention Figure 1 ;

[0027] Figure 7 Schematic diagram of the connection between the lifting sleeve and the elastic connecting block in the present invention Figure 2 ;

[0028] Figure 8 It is a schematic diagram of the internal structure of the engaging groove in the present invention;

[0029] Fig. 9 It is a schematic diagram of the connection between the arc-shaped connecting block and the locking block in the present invention;

[0030] Fig.10It is a schematic diagram of the connection between the lifting plate and the arc-shaped protrusion in the present invention;

[0031] Fig.11 It is a schematic diagram of the connection between the U-shaped seat and the guide block in the present invention.

[0032] In the figure: 1. universal quick-change connector body; 2. swing cylinder; 3. cylinder barrel; 4. piston rod; 5. annular groove; 6. lifting sleeve; 7. arc-shaped wiping layer; 8. elastic connecting block; 9. spring; 10. fixing sleeve; 11. cylinder fixing seat; 12. rod head; 13. connecting ear; 14. lifting plate; 15. arc-shaped protrusion; 16. connecting ring; 17. extension plate; 18. U-shaped seat; 19. guide block; 20. guide slide groove; 21. arc-shaped connecting block; 22. engaging block; 23. engaging groove; 24. elastic resistance ball; 25. resistance groove. DETAILED DESCRIPTION

[0033] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the specific implementation mode, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0034] Reference Figure 1-Figure 11 A multifunctional universal quick-change connector comprises a universal quick-change connector body 1, the universal quick-change connector body 1 comprises a swinging oil cylinder 2 and a connecting mechanism, the swinging oil cylinder 2 comprises a cylinder barrel 3 and a piston rod 4, an outer surface of the lower end of the cylinder barrel 3 is provided with an annular groove 5, a lifting sleeve 6 is movably sleeved on the inner wall of the annular groove 5, a plurality of arc-shaped wiping layers 7 are detachably provided on the inner wall of the lifting sleeve 6, the plurality of arc-shaped wiping layers 7 form a ring, and the ends of the plurality of arc-shaped wiping layers 7 are in contact with the surface of the piston rod 4, an elastic member is provided between the lifting sleeve 6 and the annular groove 5, an elastic connecting block 8 is fixed to the outer surface of the lifting sleeve 6, and a resistance component used in conjunction with the elastic connecting block 8 is provided on the piston rod 4.

[0035] During use, dust will adhere to the surface of the piston rod 4. When the piston rod 4 cooperates to work and retracts into the cylinder 3, the multiple arc-shaped wiping layers 7 will wipe and intercept the dust and the like adhering to the surface of the piston rod 4. In addition, during the retraction of the piston rod 4, the cooperation of the resistance component will cause the vibration of the elastic connecting block 8. With the cooperation of the elastic part, the lifting sleeve 6 and the arc-shaped wiping layer 7 will vibrate in the vertical direction, thereby shaking off the dust intercepted on the surface of the arc-shaped wiping layer 7 in time to avoid the accumulation of dust and other dirt.

[0036] The elastic member comprises a spring 9 fixed to the upper end of the lifting sleeve 6 and the top of the annular groove 5 , and the spring 9 is movably sleeved on the outer surface of the annular groove 5 .

[0037] When the resistance component acts on the elastic connecting block 8, the elastic connecting block 8 will drive the lifting sleeve 6 to move upward to squeeze the spring 9. The spring 9 is squeezed and contracted to store elastic potential energy. When the elastic potential energy stored in the spring 9 is released, the lifting sleeve 6 will be caused to shake in the vertical direction.

[0038] The connecting mechanism includes an upper connecting component and a lower connecting component. The upper connecting component includes a fixing sleeve 10 arranged on the outer surface of the cylinder 3. Cylinder fixing seats 11 are rotatably arranged on both sides of the fixing sleeve 10. The cylinder fixing seats 11 are fixed on the universal quick-change connector body 1. The lower connecting component includes a rod head 12 fixed to the lower end of the piston rod 4. A pair of connecting ears 13 are arranged on the universal quick-change connector body 1. The rod head 12 is rotatably arranged between the two connecting ears 13. This part of the structure is all existing technology to realize the installation of the swing cylinder 2.

[0039] The resistance assembly includes a lifting plate 14 movably arranged on the piston rod 4, a plurality of arc-shaped protrusions 15 are fixed on one side of the lifting plate 14 close to the elastic connecting block 8, a connecting unit is arranged between the lifting plate 14 and the piston rod 4, and a guiding unit is arranged between the lifting plate 14 and the cylinder fixing seat 11.

[0040] The connecting unit includes a fixing sleeve 10 and a connecting ring 16 disposed on the outer surface of the piston rod 4 . An extension plate 17 is fixed to the outer surface of the connecting ring 16 . The lower end surface of the lifting plate 14 is fixed to the upper end surface of the extension plate 17 .

[0041] When the piston rod 4 contracts, it will drive the connecting ring 16, the extension plate 17 and the lifting plate 14 to move upward together. During the upward movement of the lifting plate 14, the various arc-shaped protrusions 15 will be driven to move upward. During the upward movement of the arc-shaped protrusions 15, they will come into contact with the elastic connecting block 8, thereby cooperating with the spring 9 to cause the lifting sleeve 6 to drive the multiple arc-shaped wiping layers 7 to vibrate.

[0042] The guide unit includes a U-shaped seat 18 fixed to the outer surface of the cylinder fixing seat 11 , two guide blocks 19 are symmetrically fixed on the inner wall of the U-shaped seat 18 , and guide grooves 20 used in conjunction with the guide blocks 19 are provided on both sides of the lifting plate 14 .

[0043] The cooperation of the U-shaped seat 18, the guide block 19 and the guide slot 20 ensures the stability of the lifting plate 14 during the lifting and moving process, and prevents the lifting plate 14 from deviating from the elastic connecting block 8 during use.

[0044] An arc-shaped connecting block 21 is fixed to the outer surface of each arc-shaped wiping layer 7 , and two engaging blocks 22 are fixed to the outer surface of each arc-shaped connecting block 21 . The lower end surface of the lifting sleeve 6 is provided with a plurality of engaging grooves 23 for cooperating with the engaging blocks 22 .

[0045] Elastic abutment balls 24 are fixed on both sides of each engaging block 22 , and two abutment grooves 25 for cooperating with the elastic abutment balls 24 are symmetrically formed on the inner wall of each engaging groove 23 .

[0046] When in use, the engaging block 22 is engaged in the engaging groove 23, and the elastic resistance ball 24 and the resistance groove 25 cooperate to achieve the limiting fixation of the engaging block 22, thereby achieving the limiting fixation of the arc-shaped connecting block 21 and the arc-shaped wiping layer 7. When the arc-shaped wiping layer 7 has been used to a certain extent and needs to be replaced, it is only necessary to move the engaging block 22 out of the engaging groove 23, thereby removing the corresponding arc-shaped connecting block 21 and the arc-shaped wiping layer 7, and replacing them with new ones. The operation is convenient.

[0047] A locking groove 23 extends from one side of each locking block 22 away from the arc-shaped wiping layer 7 , and the outer surface of the locking block 22 protrudes from the outer surface of the lifting sleeve 6 , making it convenient for users to remove the locking block 22 from the locking groove 23 .

[0048] When the present invention is in use, dust will adhere to the surface of the piston rod 4. When the piston rod 4 cooperates to work and retracts back into the cylinder 3, the multiple arc-shaped wiping layers 7 will wipe and intercept the dust and the like adhering to the surface of the piston rod 4. In addition, during the retraction process of the piston rod 4, the elastic connecting block 8 will be vibrated through the cooperation of the resistance component. Under the cooperation of the elastic member, the lifting sleeve 6 and the arc-shaped wiping layer 7 will vibrate in the vertical direction, thereby timely shaking off the dust intercepted on the surface of the arc-shaped wiping layer 7, avoiding the accumulation of dust and other dirt.

[0049] When the piston rod 4 contracts, it will drive the connecting ring 16, the extension plate 17 and the lifting plate 14 to move upward together. In the process of the lifting plate 14 moving upward, it will drive each arc-shaped protrusion 15 to move upward. In the process of the arc-shaped protrusion 15 moving upward, it will contact the elastic connecting block 8, thereby cooperating with the spring 9 to cause the lifting sleeve 6 to drive the multiple arc-shaped wiping layers 7 to vibrate;

[0050] When in use, the engaging block 22 is engaged in the engaging groove 23, and the elastic resistance ball 24 and the resistance groove 25 cooperate to achieve the limiting fixation of the engaging block 22, thereby achieving the limiting fixation of the arc-shaped connecting block 21 and the arc-shaped wiping layer 7. When the arc-shaped wiping layer 7 has been used to a certain extent and needs to be replaced, it is only necessary to move the engaging block 22 out of the engaging groove 23, thereby removing the corresponding arc-shaped connecting block 21 and the arc-shaped wiping layer 7, and replacing them with new ones. The operation is convenient.

[0051] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A multifunctional universal quick-change connector, comprising a universal quick-change connector body (1), It is characterized in that The universal quick-change connector body (1) comprises a swing cylinder (2) and a connecting mechanism. The swing cylinder (2) comprises a cylinder barrel (3) and a piston rod (4). An annular groove (5) is provided on the outer surface of the lower end of the cylinder barrel (3). A lifting sleeve (6) is movably sleeved on the inner wall of the annular groove (5). A plurality of arc-shaped wiping layers (7) are detachably provided on the inner wall of the lifting sleeve (6). An elastic member is provided between the lifting sleeve (6) and the annular groove (5). An elastic connecting block (8) is fixed on the outer surface of the lifting sleeve (6). A resisting component used in conjunction with the elastic connecting block (8) is provided on the piston rod (4).

2. A multifunctional universal quick-change connector according to claim 1, It is characterized in that The elastic member comprises a spring (9) fixed to the upper end of the lifting sleeve (6) and the top of the annular groove (5); the spring (9) is movably sleeved on the outer surface of the annular groove (5).

3. A multifunctional universal quick-change connector according to claim 1, It is characterized in that The connection mechanism comprises an upper connection assembly and a lower connection assembly, wherein the upper connection assembly comprises a fixing sleeve (10) arranged on the outer surface of the cylinder barrel (3), and cylinder fixing seats (11) are rotatably arranged on both sides of the fixing sleeve (10), and the cylinder fixing seats (11) are fixed on the universal quick-change connector body (1).

4. A multifunctional universal quick-change connector according to claim 3, It is characterized in that The lower connection assembly comprises a rod head (12) fixed to the lower end of the piston rod (4); a pair of connection ears (13) are arranged on the universal quick-change connector body (1); and the rod head (12) is rotatably arranged between the two connection ears (13).

5. The multifunctional universal quick-change connector according to claim 3, It is characterized in that The abutment assembly comprises a lifting plate (14) movably arranged on the piston rod (4); a plurality of arc-shaped protrusions (15) are fixed on one side of the lifting plate (14) close to the elastic connection block (8); a connection unit is arranged between the lifting plate (14) and the piston rod (4); and a guide unit is arranged between the lifting plate (14) and the oil cylinder fixing seat (11).

6. A multifunctional universal quick-change connector according to claim 5, It is characterized in that The connection unit comprises a fixing sleeve (10) and a connection ring (16) arranged on the outer surface of the piston rod (4); an extension plate (17) is fixed to the outer surface of the connection ring (16); and the lower end surface of the lifting plate (14) is fixed to the upper end surface of the extension plate (17).

7. The multifunctional universal quick-change connector according to claim 5, It is characterized in that The guide unit comprises a U-shaped seat (18) fixed to the outer surface of the oil cylinder fixing seat (11), two guide blocks (19) are symmetrically fixed on the inner wall of the U-shaped seat (18), and guide sliding grooves (20) used in conjunction with the guide blocks (19) are provided on both sides of the lifting plate (14).

8. The multifunctional universal quick-change connector according to claim 1, It is characterized in that An arc-shaped connecting block (21) is fixed to the outer surface of each arc-shaped wiping layer (7), two engaging blocks (22) are fixed to the outer surface of each arc-shaped connecting block (21), and a plurality of engaging grooves (23) for cooperating with the engaging blocks (22) are provided on the lower end surface of the lifting sleeve (6).

9. The multifunctional universal quick-change connector according to claim 8, It is characterized in that Elastic abutment balls (24) are fixed on both sides of each of the engaging blocks (22), and two abutment grooves (25) for matching the elastic abutment balls (24) are symmetrically formed on the inner wall of each engaging groove (23).

10. The multifunctional universal quick-change connector according to claim 8, It is characterized in that A locking groove (23) extends from one side of each locking block (22) away from the arc-shaped wiping layer (7).

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