Hydraulic output quick-change connector for hydraulic machine

Abstract

The hydraulic output quick-change connector for the hydraulic machine comprises a barrel extending in the vertical direction, a quick-change connector body extending in the vertical direction is fixedly inserted into the barrel, connecting pipes are connected to the upper end and the lower end of the quick-change connector body in an inserted mode, and the two connecting pipes penetrate out along inserting holes; an upper-stage diaphragm cover and a lower-stage diaphragm cover are respectively arranged at the upper end and the lower end of the barrel body, the upper-stage diaphragm cover and the lower-stage diaphragm cover are oppositely arranged, the upper-stage diaphragm cover and the lower-stage diaphragm cover are both provided with vertically through insertion holes, and the insertion holes are both provided with a plurality of shrinkage diaphragms which are arranged in a circumferential array at intervals; under the action of the tension spring, the sliding piece can be driven to move, so that the upper-stage diaphragm cover and the lower-stage diaphragm cover swing inwards, the contraction diaphragm contracts inwards to abut against the outer side face of the connecting pipe, the connecting pipe is clamped, the connecting strength of the connecting pipe and the quick-change connector is improved, and the connecting stability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of quick-change joints, in particular to a hydraulic output quick-change joint for a hydraulic press. Background Art

[0002] Quick-change joints are also called quick connectors. They are mainly used to improve the replacement efficiency between the excavator bucket and the bucket, ripper and other working parts when the hydraulic press is working. They are divided into hydraulic and mechanical types. Although the design is very flexible and subjective, the basic principles are the same.

[0003] Usually the other end of the connector is connected to the hydraulic pipe. However, when the commonly used connector is installed and connected to the hydraulic pipe, the quick-change connector does not have a good matching mechanism for connection, which results in poor fixed connection strength between the quick-change connector and the hydraulic pipe, affecting the normal use of the hydraulic press. Utility Model Content

[0004] The utility model aims to provide a hydraulic output quick-change joint for a hydraulic press, aiming to solve the problem in the prior art that when the joint is installed and connected with the hydraulic pipe, the quick-change joint does not have a good matching mechanism for connection, resulting in poor fixed connection strength between the quick-change joint and the hydraulic pipe, thus affecting the normal use of the hydraulic press.

[0005] To achieve the above purpose, the utility model adopts the following technical solution: the hydraulic output quick-change joint for a hydraulic press comprises a cylinder extending in the up-down direction, a quick-change joint extending in the up-down direction is fixedly inserted in the cylinder, and connecting pipes are inserted at both upper and lower ends of the quick-change joint, and the two connecting pipes pass through the plug-in hole;

[0006] The upper end and the lower end of the cylinder are respectively provided with an upper diaphragm cover and a lower diaphragm cover, and the upper diaphragm cover and the lower diaphragm cover are arranged opposite to each other, and the upper ends of the upper diaphragm cover and the lower diaphragm cover are both provided with a plug hole that is transparent up and down, and the plug hole is provided with a plurality of shrinkable diaphragms that are arranged in a circumferential array at intervals, and the plurality of shrinkable diaphragms are surrounded by a truncated cone structure that is transparent up and down with the center of the plug hole as the center, and correspond to the plug hole up and down;

[0007] Two ejector parts groups are provided in the cylinder body, which are spaced up and down and arranged opposite to each other. The ejector parts groups are fixed on the opposite sides of the upper diaphragm cover and the lower diaphragm cover respectively. The ejector parts groups are used to drive the upper diaphragm cover and the lower diaphragm cover to swing up and down. When the upper diaphragm cover and the lower diaphragm cover swing up and down, they can drive multiple shrinkage diaphragms to shrink inward or expand outward. The multiple shrinkage diaphragms are squeezed against the outer side of the connecting pipe to reinforce the connecting pipe.

[0008] Preferably, the top of the cylinder is provided with an upper groove opening upward, the bottom of the cylinder is provided with a lower groove opening downward, and a cavity is provided in the cylinder;

[0009] The upper and lower grooves are both provided with connecting holes which are transparent from top to bottom, and the connecting holes and the cavity are connected to each other;

[0010] The connecting hole is fixedly connected to the outer side wall of the quick-change connector.

[0011] Preferably, a fixing plate is fixedly provided at the middle part of the inner side wall of the cavity, and the two ejection member groups are respectively arranged at the upper and lower sides of the fixing plate, and the fixing plate is used to fix the two ejection member groups.

[0012] Preferably, the upper groove and the lower groove are both provided with a plurality of sliding holes which are transparent from top to bottom, and the sliding holes are respectively connected with the upper groove, the lower groove and the cavity;

[0013] The ejector assembly is slidably inserted in the sliding hole.

[0014] Preferably, the two ejector assembly groups each include a tension spring and a sliding member, the tension springs are multiple and fixedly arranged on the upper and lower sides of the fixed plate, and one end of the tension spring away from the fixed plate is fixedly connected to the sliding member;

[0015] The end of the sliding member away from the tension spring is fixedly connected to the opposite side of the upper diaphragm cover and the lower diaphragm cover respectively, and the sliding member is slidably inserted in the sliding hole. When the sliding member slides up and down along the sliding hole, it can drive the upper diaphragm cover and the lower diaphragm cover to swing up and down.

[0016] Preferably, the sliding member includes a first connecting member, a second connecting member and a vertical rod, and the first connecting member and the second connecting member are both annular structures;

[0017] The upper and lower ends of the vertical rod are fixedly connected to the first connecting member and the second connecting member respectively, the two first connecting members are fixedly connected to the upper diaphragm cover and the lower diaphragm cover on one side away from the vertical rod, and the second connecting member is fixedly connected to the tension spring on one side away from the vertical rod;

[0018] The vertical rod is slidably arranged in the sliding hole.

[0019] Preferably, two sliding holes which are spaced apart from each other and are transparent from left to right are formed on the outer side surface of the cylinder.

[0020] Preferably, an adjustment rod extending in the left-right direction is fixedly provided on the outer side of the second connecting member, the adjustment rod is slidably inserted in the sliding hole, and a handle is fixedly provided on the end of the adjustment rod away from the second connecting member, and the adjustment rod is used to drive the second connecting member to move in a direction away from the fixed plate.

[0021] The beneficial effects are: 1. Under the action of the tension spring, the sliding part can be driven to move, so that the upper diaphragm cover and the lower diaphragm cover swing inward, so that the shrinkage diaphragm shrinks inward and presses against the outer surface of the connecting pipe, thereby clamping the connecting pipe, improving the connection strength between the connecting pipe and the quick-change connector, and improving the connection stability.

[0022] 2. The user can manually adjust the position of the adjustment rod to drive the upper diaphragm cover and the lower diaphragm cover to swing outward, thereby driving the shrink diaphragm to expand outward, making it easier to insert and remove the connecting pipe, thereby achieving the purpose of convenient operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of a specific embodiment of the utility model;

[0024] Figure 2 It is a schematic diagram of the structure of the splitting in a specific embodiment of the utility model;

[0025] Figure 3 It is a structural schematic diagram of a partial cross-section of a cylinder in a specific embodiment of the utility model;

[0026] Figure 4 It is a structural schematic diagram of a half-section of a cylinder in a specific embodiment of the utility model;

[0027] Figure 5 It is a structural schematic diagram of a sliding member in a specific embodiment of the utility model.

[0028] In the figure: 1. Cylinder; 2. Quick-change connector; 3. Ejector assembly; 301. Tension spring; 302. Sliding member; 3021. First connecting member; 3022. Second connecting member; 3023. Vertical rod; 4. Upper diaphragm cover; 5. Lower diaphragm cover; 6. Contraction diaphragm; 7. Upper groove; 8. Lower groove; 9. Cavity; 10. Fixed plate; 11. Connecting pipe; 12. Adjustment rod; 13. Handle. DETAILED DESCRIPTION

[0029] The specific implementation of the utility model is further described below in conjunction with the accompanying drawings.

[0030] like Figure 1-Figure 5 As shown, a hydraulic output quick-change connector for a hydraulic press, when a connecting pipe 11 is connected to the quick-change connector 2, the connecting pipe 11 can be clamped by the shrinkable diaphragms 6 on the upper diaphragm cover 4 and the lower diaphragm cover 5, so as to improve the connection strength between the connecting pipe 11 and the quick-change connector 2 and improve the connection stability. Specifically, it includes a cylinder 1 extending in the up-down direction, and a quick-change connector 2 extending in the up-down direction is fixedly inserted in the cylinder 1, and connecting pipes 11 are inserted at both upper and lower ends of the quick-change connector 2, and the two connecting pipes 11 pass through the insertion hole.

[0031] The upper and lower ends of the cylinder 1 are respectively provided with an upper diaphragm cover 4 and a lower diaphragm cover 5, and the upper diaphragm cover 4 and the lower diaphragm cover 5 are arranged opposite to each other. The upper diaphragm cover 4 and the lower diaphragm cover 5 are provided with plug-in holes that are transparent from top to bottom. The plug-in holes are provided with a plurality of shrinkable diaphragms 6 that are arranged at intervals in a circular array. The plurality of shrinkable diaphragms 6 are surrounded by a truncated cone structure that is transparent from top to bottom with the center of the plug-in hole as the center, and correspond to the plug-in hole from top to bottom. When the connecting pipe 11 is inserted into the plug-in hole, the connecting pipe 11 can be connected to the quick-change connector 2.

[0032] Two ejector groups 3 are provided in the cylinder body 1, which are spaced apart from each other and arranged opposite to each other. The ejector groups 3 are fixedly arranged on opposite sides of the upper diaphragm cover 4 and the lower diaphragm cover 5, respectively. The ejector groups 3 are used to drive the upper diaphragm cover 4 and the lower diaphragm cover 5 to swing up and down. When the upper diaphragm cover 4 and the lower diaphragm cover 5 swing up and down, they can drive multiple shrinkage diaphragms 6 to shrink inward or expand outward. Multiple shrinkage diaphragms 6 are pressed against the outer side of the connecting tube 11 to reinforce the connecting tube 11. When the upper diaphragm cover 4 or the lower diaphragm cover 5 swings in opposite directions, the shrinkage diaphragm 6 can be driven to expand outward so that the connecting tube 11 can be inserted into the plug hole. If the upper diaphragm cover 4 or the lower diaphragm cover 5 swings in opposite directions, the shrinkage diaphragm 6 can be driven to shrink inward so that the shrinkage diaphragm 6 is squeezed on the outer side wall of the connecting tube 11, so as to improve the stability of the connection between the connecting tube 11 and the quick-change connector 2.

[0033] An upper groove 7 opening upward is formed at the top of the cylinder 1 , a lower groove 8 opening downward is formed at the bottom of the cylinder 1 , and a cavity 9 is formed inside the cylinder 1 .

[0034] Both the upper groove 7 and the lower groove 8 are provided with connecting holes which are transparent from top to bottom, and the connecting holes and the cavity 9 are communicated with each other.

[0035] The connecting hole is fixedly connected to the outer side wall of the quick-change connector 2 .

[0036] The user can manually adjust the position of the adjustment rod 12 to drive the upper diaphragm cover 4 and the lower diaphragm cover 5 to swing outward, thereby driving the shrink diaphragm 6 to expand outward, making it easy to insert and remove the connecting tube 11, thereby achieving the purpose of convenient operation. Specifically, a fixing plate 10 is fixedly provided in the middle of the inner wall of the cavity 9, and the two ejector groups 3 are respectively arranged on the upper and lower sides of the fixing plate 10, and the fixing plate 10 is used to fix the two ejector groups 3.

[0037] A plurality of sliding holes which are transparent from top to bottom are formed on the upper groove 7 and the lower groove 8 , and the sliding holes are respectively connected with the upper groove 7 , the lower groove 8 and the cavity 9 .

[0038] The ejector assembly 3 is slidably inserted into the sliding hole. In the initial state, the shrinkable diaphragm 6 shrinks inward, so that the connecting tube 11 cannot be inserted into the quick-change connector 2. When the connecting tube 11 needs to be inserted, the user manually moves the handle 13 in the opposite direction. When the handle 13 is moved, it can drive the adjustment rod 12 to move along the sliding hole.

[0039] The two ejector groups 3 each include a tension spring 301 and a sliding member 302. The tension spring 301 is multiple and fixedly disposed on the upper and lower sides of the fixed plate 10. One end of the tension spring 301 away from the fixed plate 10 is fixedly connected to the sliding member 302.

[0040] One end of the sliding member 302 away from the tension spring 301 is fixedly connected to the opposite side of the upper diaphragm cover 4 and the lower diaphragm cover 5, respectively, and the sliding member 302 is slidably inserted in the sliding hole. When the sliding member 302 slides up and down along the sliding hole, it can drive the upper diaphragm cover 4 and the lower diaphragm cover 5 to swing up and down. When the adjusting rod 12 moves, it can stretch the tension spring 301, so that the sliding member 302 moves in opposite directions. When the sliding member 302 moves, it can push the upper diaphragm cover 4 or the lower diaphragm cover 5 outward, so that the shrink diaphragm 6 is in an outwardly expanded state. At this time, the connecting pipe 11 can be inserted into the plug hole.

[0041] The sliding member 302 includes a first connecting member 3021, a second connecting member 3022 and a vertical rod 3023. The first connecting member 3021 and the second connecting member 3022 are both annular structures.

[0042] The upper and lower ends of the vertical rod 3023 are fixedly connected to the first connecting member 3021 and the second connecting member 3022 respectively. The two first connecting members 3021 are fixedly connected to the upper diaphragm cover 4 and the lower diaphragm cover 5 on one side away from the vertical rod 3023. The second connecting member 3022 is fixedly connected to the tension spring 301 on one side away from the vertical rod 3023.

[0043] The vertical rod 3023 is slidably disposed in the sliding hole.

[0044] The outer surface of the cylinder 1 is provided with two sliding holes which are spaced apart from each other and are transparent from left to right.

[0045] The outer side of the second connecting member 3022 is fixed with an adjustment rod 12 extending in the left and right directions, and the adjustment rod 12 is slidably inserted in the sliding hole. A handle 13 is fixedly provided at the end of the adjustment rod 12 away from the second connecting member 3022. The adjustment rod 12 is used to drive the second connecting member 3022 to move in the direction away from the fixed plate 10. After insertion, the user releases the handle 13, and under the action of the tension spring 301, the sliding member 302 can be driven to shrink in the opposite direction. When the sliding member 302 moves, the upper diaphragm cover 4 or the lower diaphragm cover 5 can be shrinked inward, thereby squeezing the shrink diaphragm 6 against the outer surface of the connecting tube 11 to reinforce the connecting tube 11, so as to improve the stability of the connection between the connecting tube 11 and the quick-change connector 2.

[0046] Working principle: In the initial state, the shrinkable membrane 6 shrinks inward, so that the connecting tube 11 cannot be inserted into the quick-change connector 2. When the connecting tube 11 needs to be inserted, the user manually moves the handle 13 in the opposite direction. When the handle 13 is moved, it can drive the adjustment rod 12 to move along the sliding hole;

[0047] When the adjusting rod 12 moves, the tension spring 301 can be stretched, so that the sliding member 302 moves in opposite directions. When the sliding member 302 moves, the upper diaphragm cover 4 or the lower diaphragm cover 5 can be pushed outward, so that the shrink diaphragm 6 is in an outwardly expanded state. At this time, the connecting pipe 11 can be inserted into the plug hole.

[0048] After insertion, the user releases the handle 13, and under the action of the tension spring 301, the sliding member 302 can be driven to shrink in the opposite direction. When the sliding member 302 moves, the upper diaphragm cover 4 or the lower diaphragm cover 5 can be shrunk inward, thereby squeezing the shrinking diaphragm 6 against the outer surface of the connecting tube 11 to reinforce the connecting tube 11, so as to improve the stability of the connection between the connecting tube 11 and the quick-change connector 2.

[0049] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is limited by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A hydraulic output quick-change joint for a hydraulic press, characterized in that: It comprises a cylinder (1) extending in the up-down direction, a quick-change joint (2) extending in the up-down direction fixedly inserted in the cylinder (1), connecting pipes (11) inserted at both upper and lower ends of the quick-change joint (2), and the two connecting pipes (11) pass through the insertion hole; An upper diaphragm cover (4) and a lower diaphragm cover (5) are respectively provided at the upper and lower ends of the cylinder (1), and the upper diaphragm cover (4) and the lower diaphragm cover (5) are arranged opposite to each other. A plug-in hole which is transparent from top to bottom is opened on the upper side of the upper diaphragm cover (4) and the lower diaphragm cover (5). A plurality of shrinkable diaphragms (6) are arranged at intervals in a circular array on the plug-in hole. The plurality of shrinkable diaphragms (6) are surrounded by a truncated cone structure which is transparent from top to bottom with the center of the plug-in hole as the center, and correspond to the plug-in hole from top to bottom. The cylinder (1) is provided with two ejector groups (3) spaced apart from each other and arranged opposite to each other. The ejector groups (3) are fixedly arranged on opposite sides of the upper diaphragm cover (4) and the lower diaphragm cover (5), respectively. The ejector groups (3) are used to drive the upper diaphragm cover (4) and the lower diaphragm cover (5) to swing up and down. When the upper diaphragm cover (4) and the lower diaphragm cover (5) swing up and down, they can drive a plurality of shrinkable diaphragms (6) to shrink inwardly or expand outwardly. The plurality of shrinkable diaphragms (6) are pressed against the outer surface of the connecting tube (11) to reinforce the connecting tube (11).

2. The hydraulic output quick-change joint for a hydraulic press according to claim 1, characterized in that: An upper groove (7) with an opening facing upward is formed on the top of the cylinder (1), a lower groove (8) with an opening facing downward is formed on the bottom of the cylinder (1), and a cavity (9) is formed inside the cylinder (1); The upper groove (7) and the lower groove (8) are both provided with a connecting hole which is transparent from top to bottom, and the connecting hole and the cavity (9) are connected to each other; The connection hole is fixedly connected to the outer side wall of the quick-change connector (2).

3. The hydraulic output quick-change joint for a hydraulic press according to claim 2, characterized in that: A fixing plate (10) is fixedly provided in the middle of the inner wall of the cavity (9), and the two ejection member groups (3) are respectively arranged on the upper and lower sides of the fixing plate (10), and the fixing plate (10) is used to fix the two ejection member groups (3).

4. The hydraulic output quick-change joint for a hydraulic press according to claim 2, characterized in that: The upper groove (7) and the lower groove (8) are each provided with a plurality of sliding holes which are transparent from top to bottom, and the sliding holes are respectively interconnected with the upper groove (7), the lower groove (8) and the cavity (9); The ejector assembly (3) is slidably inserted in the sliding hole.

5. A hydraulic output quick-change joint for a hydraulic press according to any one of claims 1 to 4, characterized in that: The two ejector assemblies (3) each comprise a tension spring (301) and a sliding member (302); the tension springs (301) are multiple and fixedly arranged on the upper and lower sides of the fixed plate (10); one end of the tension spring (301) away from the fixed plate (10) is fixedly connected to the sliding member (302); One end of the sliding member (302) away from the tension spring (301) is fixedly connected to the opposite sides of the upper diaphragm cover (4) and the lower diaphragm cover (5), respectively. The sliding member (302) is slidably inserted in the sliding hole. When the sliding member (302) slides up and down along the sliding hole, it can drive the upper diaphragm cover (4) and the lower diaphragm cover (5) to swing up and down.

6. The hydraulic output quick-change joint for a hydraulic press according to claim 5, characterized in that: The sliding member (302) comprises a first connecting member (3021), a second connecting member (3022) and a vertical rod (3023); the first connecting member (3021) and the second connecting member (3022) are both annular structures; The upper and lower ends of the vertical rod (3023) are respectively fixedly connected to the first connecting member (3021) and the second connecting member (3022); the sides of the two first connecting members (3021) away from the vertical rod (3023) are fixedly connected to the upper diaphragm cover (4) and the lower diaphragm cover (5); and the sides of the second connecting members (3022) away from the vertical rod (3023) are fixedly connected to the tension spring (301); The vertical rod (3023) is slidably arranged in the sliding hole.

7. The hydraulic output quick-change joint for a hydraulic press according to claim 6, characterized in that: The outer surface of the cylinder (1) is provided with two sliding holes which are spaced apart from each other and are transparent to each other.

8. The hydraulic output quick-change joint for a hydraulic press according to claim 7, characterized in that: An adjustment rod (12) extending in the left-right direction is fixedly provided on the outer side of the second connecting member (3022); the adjustment rod (12) is slidably inserted in the sliding hole; a handle (13) is fixedly provided on one end of the adjustment rod (12) away from the second connecting member (3022); the adjustment rod (12) is used to drive the second connecting member (3022) to move in a direction away from the fixing plate (10).

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