A multifunctional universal quick-change connector

Abstract

The application discloses a multifunctional universal quick-change connector and relates to the technical field of engineering machinery, which comprises a universal quick-change connector body, wherein 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; an annular missing groove is formed in the outer surface of the lower end of the cylinder barrel; a lifting sleeve is movably arranged on the inner wall of the annular missing groove; a plurality of arc-shaped wiping layers are detachably arranged on the inner wall of the lifting sleeve; an elastic member is arranged between the lifting sleeve and the annular missing groove; an elastic connecting block is fixed to the outer surface of the lifting sleeve; and a resisting assembly that is used in cooperation with the elastic connecting block is arranged on the piston rod.

Description

Technical Field

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

[0002] The multi-functional universal quick-change connector, commonly known as the "hydraulic wrist" in the excavator industry, is an important accessory for excavators. It's a device that enables quick changes and flexible rotation of excavator attachments. Through advanced mechanical structure and hydraulic control technology, it allows excavator attachments to rotate 360 ​​degrees and tilt at a certain angle, greatly expanding the excavator's working range and operational capabilities. Universal quick-change connectors are widely used in various excavator operating scenarios, such as construction sites, road construction, and mining. In these scenarios, excavators need to cope with various complex terrains and operating conditions.

[0003] Existing multi-functional universal quick-change connectors have certain defects during use. For example, existing universal quick-change connectors are usually equipped with a swing cylinder for use. During use, dust and other contaminants will adhere to the surface of the piston rod on the swing cylinder. Although the swing cylinder is equipped with a dustproof ring to cooperate with the piston rod, the actual use effect is generally not good. Summary of the Invention

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

[0005] The swing cylinder on the existing universal quick-change connector is usually equipped with a dust seal to work with the piston rod, but the actual performance is generally poor.

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

[0007] To achieve the above objectives, the present invention adopts the following technical solutions:

[0008] A multifunctional universal quick-change connector includes a universal quick-change connector body. The universal quick-change connector body includes a swing cylinder and a connecting mechanism. The swing cylinder includes a cylinder barrel and a piston rod. An annular notch is formed on the outer surface of the lower end of the cylinder barrel. A lifting sleeve is movably fitted on the inner wall of the annular notch. Multiple arc-shaped wiping layers are detachably provided on the inner wall of the lifting sleeve. An elastic element is provided between the lifting sleeve and the annular notch. An elastic connecting block is fixed on the outer surface of the lifting sleeve. An abutment component that cooperates with the elastic connecting block is provided on the piston rod.

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

[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 fixedly sleeved on the outer surface of the cylinder. Both sides of the fixed sleeve are rotatably provided with cylinder fixing seats, 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, and a pair of connecting ears are provided on the universal quick-change connector body, with the rod head rotatably disposed between the two connecting ears.

[0012] As a further technical solution of the present invention, the abutting component includes a lifting plate movably disposed on the piston rod, a plurality of arc-shaped protrusions fixed on the side of the lifting plate near the elastic connecting block, a connecting unit disposed between the lifting plate and the piston rod, and a guiding unit disposed 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 fixed on the outer surface of the connecting ring, and the lower end face of the lifting plate fixed to the upper end face 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 mounting base, two guide blocks are symmetrically fixed on the inner wall of the U-shaped seat, and guide grooves for use 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 on the outer surface of each arc-shaped wiping layer, and two locking blocks are fixed on the outer surface of each arc-shaped connecting block. Multiple locking grooves for use with locking blocks are opened on the lower end face of the lifting sleeve.

[0016] As a further technical solution of the present invention, each of the locking blocks has elastic abutment balls fixed on both sides, and each locking groove has two abutment grooves symmetrically formed on its inner wall to cooperate with the elastic abutment balls.

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

[0018] The beneficial effects of this invention are:

[0019] 1. During use, dust will adhere to the surface of the piston rod. When the piston rod retracts into the cylinder during operation, multiple arc-shaped wiping layers will wipe and intercept the dust and other contaminants adhering to the piston rod surface. Furthermore, during the retraction of the piston rod, the interaction of the contact components will cause the elastic connecting block to vibrate. With the cooperation of the elastic components, the lifting sleeve and the arc-shaped wiping layers will vibrate in the vertical direction, thereby shaking off the dust intercepted on the surface of the arc-shaped wiping layers in a timely manner, preventing the accumulation of dust and other dirt.

[0020] 2. During use, the locking block engages within the locking groove. The engagement block is secured by the interaction of the elastic contact ball and the contact groove, thereby securing the arc-shaped connecting block and the arc-shaped wiping layer. When the arc-shaped wiping layer needs to be replaced after a certain period of use, simply remove the locking block from the locking groove, remove the corresponding arc-shaped connecting block and arc-shaped wiping layer, and replace them with new ones. The operation is convenient. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of the universal quick-change connector body in this invention;

[0022] Figure 2 This is a schematic diagram of the connection between the cylinder and the piston rod in this invention. Figure 1 ;

[0023] Figure 3 This is a schematic diagram of the connection between the cylinder and the piston rod in this invention. Figure 2 ;

[0024] Figure 4 This is a schematic diagram of the connection between the cylinder and the piston rod in this invention. Figure 3 ;

[0025] Figure 5 This is a schematic diagram of the connection between the cylinder and the piston rod in this invention. Figure 4 ;

[0026] Figure 6 This is a schematic diagram of the connection between the lifting sleeve and the elastic connecting block in this invention. Figure 1 ;

[0027] Figure 7 This is a schematic diagram of the connection between the lifting sleeve and the elastic connecting block in this invention. Figure 2 ;

[0028] Figure 8 This is a schematic diagram of the internal structure of the locking groove in this invention;

[0029] Figure 9 This is a schematic diagram showing the connection between the arc-shaped connecting block and the locking block in this invention;

[0030] Figure 10This is a schematic diagram showing the connection between the lifting plate and the arc-shaped protrusion in this invention;

[0031] Figure 11 This is a schematic diagram of the connection between the U-shaped seat and the guide block in this invention.

[0032] In the diagram: 1. Universal quick-change connector body; 2. Swing cylinder; 3. Cylinder barrel; 4. Piston rod; 5. Annular notch; 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 groove; 21. Arc-shaped connecting block; 22. Engaging block; 23. Engaging groove; 24. Elastic abutment ball; 25. Abutment groove. Detailed Implementation

[0033] To further illustrate the technical means and effects of the present invention in achieving its intended purpose, the following detailed description of the specific implementation methods, structures, features and effects of the present invention, in conjunction with the accompanying drawings and preferred embodiments, is provided below.

[0034] Reference Figures 1-11 A multifunctional universal quick-change connector includes a universal quick-change connector body 1. The universal quick-change connector body 1 includes a swing cylinder 2 and a connecting mechanism. The swing cylinder 2 includes a cylinder 3 and a piston rod 4. An annular notch 5 is formed on the outer surface of the lower end of the cylinder 3. A lifting sleeve 6 is movably sleeved on the inner wall of the annular notch 5. Multiple arc-shaped wiping layers 7 are detachably provided on the inner wall of the lifting sleeve 6. The multiple arc-shaped wiping layers 7 form an annulus, and the ends of the multiple arc-shaped wiping layers 7 are in contact with the surface of the piston rod 4. An elastic element is provided between the lifting sleeve 6 and the annular notch 5. An elastic connecting block 8 is fixed on the outer surface of the lifting sleeve 6. An abutment component that cooperates 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 works and retracts into the cylinder 3, multiple arc-shaped wiping layers 7 will wipe and intercept the dust and other dirt adhering to the surface of the piston rod 4. Furthermore, during the retraction process of the piston rod 4, the cooperation of the contact components will cause the elastic connecting block 8 to vibrate. With the cooperation of the elastic components, 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 a timely manner, preventing the accumulation of dust and other dirt.

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

[0037] When the contact component acts on the elastic connecting block 8, the elastic connecting block 8 will drive the lifting sleeve 6 to move upward and squeeze the spring 9. The spring 9 is squeezed and contracted, storing elastic potential energy. When the elastic potential energy stored on the spring 9 is released, it will cause the lifting sleeve 6 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 fixed sleeve 10 disposed on the outer surface of the cylinder 3. A cylinder fixing seat 11 is rotatably disposed on both sides of the fixed sleeve 10. The cylinder fixing seat 11 is 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 disposed on the universal quick-change connector body 1. The rod head 12 is rotatably disposed between the two connecting ears 13. This part of the structure is all existing technology, realizing the installation of the swing cylinder 2.

[0039] The abutment component includes a lifting plate 14 movably mounted on the piston rod 4. Multiple arc-shaped protrusions 15 are fixed on the side of the lifting plate 14 near the elastic connecting block 8. A connecting unit is provided between the lifting plate 14 and the piston rod 4, and a guide unit is provided between the lifting plate 14 and the cylinder fixing seat 11.

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

[0041] When the piston rod 4 retracts, 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, it will drive each arc-shaped protrusion 15 to move upward. During the upward movement of the arc-shaped protrusion 15, it will come into contact with the elastic connecting block 8, thereby cooperating with the spring 9 to cause the lifting sleeve 6 to drive 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 mounting base 11. Two guide blocks 19 are symmetrically fixed on the inner wall of the U-shaped seat 18. Guide grooves 20 that cooperate with the guide blocks 19 are opened on both sides of the lifting plate 14.

[0043] The U-shaped seat 18, guide block 19 and guide groove 20 work together to ensure the stability of the lifting plate 14 during the lifting and moving process, and to prevent the lifting plate 14 from deviating from the elastic connecting block 8 during use.

[0044] Each arc-shaped wiping layer 7 has an arc-shaped connecting block 21 fixed on its outer surface, and each arc-shaped connecting block 21 has two locking blocks 22 fixed on its outer surface. The lower end face of the lifting sleeve 6 has multiple locking grooves 23 that cooperate with the locking blocks 22.

[0045] Each locking block 22 has elastic abutment balls 24 fixed on both sides, and each locking groove 23 has two symmetrical abutment grooves 25 on its inner wall for use with the elastic abutment balls 24.

[0046] In use, the locking block 22 is locked in the locking groove 23. The locking block 22 is fixed by the cooperation of the elastic abutment ball 24 and the abutment groove 25, thereby fixing the arc-shaped connecting block 21 and the arc-shaped wiping layer 7. When the arc-shaped wiping layer 7 needs to be replaced after a certain period of use, simply remove the locking block 22 from the locking groove 23, and then remove the corresponding arc-shaped connecting block 21 and arc-shaped wiping layer 7 and replace them with new ones. The operation is convenient.

[0047] Each locking block 22 extends into a locking groove 23 on the side away from the arc-shaped wiping layer 7. 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 works and retracts into the cylinder 3, multiple arc-shaped wiping layers 7 will wipe and intercept the dust and other particles adhering to the surface of the piston rod 4. During the retraction process of the piston rod 4, the elastic connecting block 8 will vibrate due to the cooperation of the contact component. Under the cooperation of the elastic element, 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, and avoiding the accumulation of dust and other dirt.

[0049] When the piston rod 4 retracts, 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, it will drive each arc-shaped protrusion 15 to move upward. During the upward movement of the arc-shaped protrusion 15, it will come into contact with the elastic connecting block 8, thereby cooperating with the spring 9 to cause the lifting sleeve 6 to drive multiple arc-shaped wiping layers 7 to vibrate.

[0050] In use, the locking block 22 is locked in the locking groove 23. The locking block 22 is fixed by the cooperation of the elastic abutment ball 24 and the abutment groove 25, thereby fixing the arc-shaped connecting block 21 and the arc-shaped wiping layer 7. When the arc-shaped wiping layer 7 needs to be replaced after a certain period of use, simply remove the locking block 22 from the locking groove 23, and then remove the corresponding arc-shaped connecting block 21 and arc-shaped wiping layer 7 and replace them with new ones. The operation is convenient.

[0051] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A multifunctional universal quick-change connector, comprising a universal quick-change connector body (1), characterized in that, The universal quick-change connector body (1) includes a swing cylinder (2) and a connection mechanism. The swing cylinder (2) includes a cylinder (3) and a piston rod (4). An annular notch (5) is provided on the outer surface of the lower end of the cylinder (3). A lifting sleeve (6) is movably sleeved on the inner wall of the annular notch (5). Multiple arc-shaped wiping layers (7) are detachably provided on the inner wall of the lifting sleeve (6). An elastic element is provided between the lifting sleeve (6) and the annular notch (5). An elastic connecting block (8) is fixed on the outer surface of the lifting sleeve (6). An abutting component is provided on the piston rod (4) to cooperate with the elastic connecting block (8). The abutting component includes a lifting plate (14) movably mounted on the piston rod (4). Multiple arc-shaped protrusions (15) are fixed on the side of the lifting plate (14) near the elastic connecting block (8). A connecting unit is provided between the lifting plate (14) and the piston rod (4), and a guide unit is provided between the lifting plate (14) and the cylinder fixing seat (11). The connecting unit includes a connecting ring (16) with a fixed sleeve (10) on the outer surface of the piston rod (4), an extension plate (17) fixed on the outer surface of the connecting ring (16), and the lower end face of the lifting plate (14) fixed to the upper end face of the extension plate (17). The guide unit includes a U-shaped seat (18) fixed to the outer surface of the cylinder mounting base (11). Two guide blocks (19) are symmetrically fixed on the inner wall of the U-shaped seat (18). Guide grooves (20) are provided on both sides of the lifting plate (14) to cooperate with the guide blocks (19).

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

3. A multifunctional universal quick-change connector according to claim 1, characterized in that, The connection mechanism includes an upper connection component and a lower connection component. The upper connection component includes a fixed sleeve (10) disposed on the outer surface of the cylinder (3). Both sides of the fixed sleeve (10) are rotatably provided with cylinder fixing seats (11), 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, characterized in that, The lower connecting assembly includes a rod head (12) fixed to the lower end of the piston rod (4), and a pair of connecting ears (13) are provided on the universal quick-change connector body (1). The rod head (12) is rotatably positioned between the two connecting ears (13).

5. A multifunctional universal quick-change connector according to claim 1, characterized in that, Each of the arc-shaped wiping layers (7) has an arc-shaped connecting block (21) fixed on its outer surface. Each arc-shaped connecting block (21) has two locking blocks (22) fixed on its outer surface. The lower end face of the lifting sleeve (6) has multiple locking grooves (23) for use with the locking blocks (22).

6. A multifunctional universal quick-change connector according to claim 5, characterized in that, Each of the locking blocks (22) has elastic abutment balls (24) fixed on both sides, and each locking groove (23) has two abutment grooves (25) symmetrically opened on the inner wall to cooperate with the elastic abutment balls (24).

7. A multifunctional universal quick-change connector according to claim 5, characterized in that, Each of the locking blocks (22) extends a locking groove (23) on the side away from the arc-shaped wiping layer (7).

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