Dismounting wrench for hydraulic pipeline joint

Abstract

The utility model discloses a dismounting wrench for a hydraulic pipeline joint, and relates to the technical field of wrenches. The chuck comprises a first chuck and a second chuck which are matched with each other; the end part of the connecting piece and the chuck are fixedly arranged or arranged in a limiting manner; the stress application rod is detachably connected with the other end part of the connecting piece; the wrench body is of a clamp type structure capable of being opened and closed, is composed of two semi-annular jaws, can be flexibly opened and closed through combination of a positioning column and a positioning groove, and can be conveniently sleeved into hydraulic pipelines which are tightly arranged side by side. The clamp type structure stretches from the two sides of the pipeline through the separated chucks, the problem that a traditional wrench cannot be operated due to narrow space is solved, the wrench can quickly and accurately act on the hydraulic pipelines which are tightly arranged side by side, the dismounting time is greatly shortened, and the working efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the wrench technical field, and specifically relates to a dismounting wrench for hydraulic pipeline joint. BACKGROUND

[0002] In mechanical equipment, a hydraulic system plays a vital role. As a key component of the hydraulic system, the hydraulic pipeline needs to be regularly maintained, repaired or replaced. However, when facing the closely installed hydraulic pipelines side by side, the traditional wrench has many problems. Due to the narrow space, the traditional wrench cannot find a suitable operating angle, which makes the dismounting work extremely difficult and consumes a lot of time and manpower. In addition, forcibly operating the traditional wrench can also cause damage to the hydraulic pipeline, affect the normal operation of the equipment, and increase the maintenance cost.

[0003] After searching, the utility model with publication number CN221211504U proposes a detachable new type twelve-angle wrench, which comprises a chuck A, a mounting pin, a branch arm A, a branch arm B, and a chuck B, characterized in that the branch arm A and the branch arm B are respectively fixedly provided with the chuck A and the chuck B at one end, and the branch arm A and the branch arm B are hingedly inserted with the mounting pin at the middle part; the wrench can be separated to adapt to nuts of different sizes, but when facing the closely installed hydraulic pipelines side by side, there is not enough space between the adjacent nuts to separate the wrench. SUMMARY

[0004] In order to solve the problem that the traditional wrench cannot be well dismounted when facing the closely installed hydraulic pipelines side by side, the utility model proposes a dismounting wrench for hydraulic pipeline joint to solve the above-mentioned problems.

[0005] A dismounting wrench for hydraulic pipeline joint, comprising a chuck; the chuck comprises a first chuck and a second chuck that are matched with each other;

[0006] A connecting piece is fixedly or limitingly arranged at the end of the chuck;

[0007] A force adding rod is detachably connected at the end of the connecting arm formed by the combination of the connecting piece and the force adding rod.

[0008] The wrench body adopts a clamping jaw structure that can be opened and closed, which is composed of two half-ring jaws. Through the combination of the positioning column and the positioning groove, the wrench body can be flexibly opened and closed, and is convenient to be sleeved into the closely installed hydraulic pipelines side by side.

[0009] The operating arm is further provided with a length-adjustable force adding rod. According to different pipe diameters and dismounting torque requirements, the length of the force arm can be flexibly adjusted to save labor and effort.

[0010] The surfaces of the top ends of the clamps in contact with each other are provided with positioning seats, the surface of the positioning seat on the first clamp is connected with a positioning column, and the surface of the positioning seat on the second clamp is provided with a positioning groove.

[0011] The positioning column is a conical cylinder, and the positioning groove is a conical cavity matched with the positioning column.

[0012] The cooperation of the conical positioning column and the conical cavity can realize self-centering, ensure accurate clamping of the nut when the clamp is closed, and reduce operation errors.

[0013] The bottom of the positioning column is nested with a magnetic ring, and the edge of the entrance of the positioning groove is nested with a magnetic ring.

[0014] The magnetic rings at the bottom of the positioning column and the entrance of the positioning groove assist the clamp to be quickly closed through magnetic attraction, so that preliminary fixation can be completed without manual adjustment in a narrow space, and operation efficiency is improved.

[0015] The inner wall of the positioning groove is covered with a wear-resistant coating, and the surface of the positioning column is sprayed with a fluorescent coating.

[0016] The wear-resistant coating of the inner wall of the positioning groove prolongs the service life; and the fluorescent coating of the positioning column provides visual guidance in a dim environment, facilitating rapid positioning.

[0017] The connecting piece comprises a first plate-shaped part and a second plate-shaped part, the second plate-shaped part is fixedly connected to the surface of the first plate-shaped part, the surface of the second plate-shaped part is connected with a limiting block, and the connecting piece and the limiting block are arranged in a stepped manner.

[0018] During the closing or force applying process of the clamp, the limiting block prevents the two clamps from being vertically dislocated due to uneven force or external interference, so that the parallel centering of the clamps when clamping the nut is ensured.

[0019] The stepped arrangement limits the maximum opening angle of the clamps through physical blocking, so as to avoid collision of the tool with the pipeline or damage to the clamp structure due to excessive opening.

[0020] The first plate-shaped part is provided with a magnetic block on the surface of the side close to the limiting block, and the magnetic blocks are uniformly arranged along the surface of the first plate-shaped part.

[0021] The magnetic attraction force is used to assist the close adhesion of the connecting piece, so as to reduce the risk of loosening caused by vibration or external force. In a narrow space, the magnetic force can guide the clamp to be quickly adsorbed to the target position, so as to reduce the manual adjustment time.

[0022] The limit block and the magnetic block work together. The limit block ensures that the movement trajectory of the chuck is controllable through physical restriction, while the magnetic block maintains the stability of the connection through magnetic attraction. The two work together to enable the chuck to accurately engage the nut within the limit range. The magnetic force helps to reduce deviation. Under vibration or tilting conditions, the magnetic attraction force and the mechanical blocking of the limit block work together to prevent the tool from loosening.

[0023] The surface of the force-adding rod is provided with anti-slip texture.

[0024] When using the wrench, insert the first chuck into the gap on one side of the parallel gap in the hydraulic lines and adjust the angle to contact the target nut. By slightly rotating the connector, the first chuck will engage the nut. At this point, the positioning seat of the first chuck is aligned with the edge of the nut. Insert the second chuck into the gap on the other side of the lines and rotate it to adjust its angle so that the positioning seat of the second chuck is symmetrically distributed with the first chuck. The fluorescent coating on the surface of the positioning post provides visual guidance in dim environments, helping to quickly confirm the alignment accuracy. Push the second chuck from bottom to top so that the positioning post is embedded in the positioning groove. The magnetic ring at the base of the positioning post and the entrance of the positioning groove generates magnetic attraction, assisting the chuck to close and lock quickly, preventing loosening due to vibration or external force.

[0025] Meanwhile, the connecting parts are engaged with each other and positioned under the action of the magnetic block to prevent loosening under vibration or tilting conditions; the extension rod is connected to the end of the connecting part, and the operator holds the anti-slip textured area of ​​the extension rod; a rotational torque is applied through the extension rod, and the chuck bites the nut in the closed state, completing the disassembly and assembly operation.

[0026] After completing the operation, rotate the lever in the opposite direction to release the torque, and tap or tilt the wrench to weaken the attraction of the magnetic ring, thus separating the first chuck from the second chuck.

[0027] Compared with the prior art, the present invention has the following beneficial effects;

[0028] 1. The clamp-type structure, with its separate clamps, extends from both sides of the pipeline, solving the problem of traditional wrenches being unable to operate due to narrow spaces. This allows the wrench to act quickly and accurately on closely spaced hydraulic pipelines, greatly shortening disassembly time and improving work efficiency.

[0029] 2. The self-centering of the tapered positioning post and positioning groove reduces manual adjustment time, the magnetic ring assists in rapid closure, and the fluorescent coating provides visual positioning, improving work efficiency.

[0030] 3. The limit block and the magnetic block are linked, and the dual mechanism of mechanical blocking and magnetic attraction prevents the clamp from being misaligned or loosened. This effectively avoids slippage and misoperation during disassembly, reduces damage to hydraulic lines, and extends the service life of the lines.

[0031] 4. The extension rod is detachable and adjustable in length, adaptable to different torque requirements, and suitable for hydraulic pipelines of different pipe diameters and installation positions, making it widely applicable. Attached Figure Description

[0032] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0033] Figure 1 Diagram of the chuck assembly state

[0034] Figure 2 Schematic diagram A of the first chuck structure;

[0035] Figure 3 Schematic diagram B of the first chuck structure;

[0036] Figure 4 This is a schematic diagram of the second clamp structure;

[0037] Figure 5 This is a schematic diagram of another combination state of the chuck;

[0038] Figure 6 This is a schematic diagram of a wrench structure;

[0039] Figure 7 This is a photo of a standard wrench being used to disassemble a hydraulic line connector.

[0040] Figure 8 The image shows a clamp fitting onto a hydraulic line connector.

[0041] Figure 9 This is a photograph of a hydraulic pipe fitting being disassembled using a disassembly wrench.

[0042] In the picture:

[0043] 1. Connector; 11. Connecting arm;

[0044] 2. Limit block;

[0045] 3. Magnetic block;

[0046] 4. Chuck; 41. First chuck; 42. Second chuck;

[0047] 5. Positioning seat;

[0048] 6. Positioning post;

[0049] 7. Positioning groove;

[0050] 8. Extension rod;

[0051] 9. Magnetic ring. Detailed Implementation

[0052] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0053] The application principle of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0054] Example 1

[0055] like Figures 1-6 As shown, a hydraulic pipeline connector disassembly wrench includes a clamp 4; the clamp 4 includes a first clamp 41 and a second clamp 42 that are mutually adapted to each other;

[0056] Connector 1, wherein the end of connector 1 is fixedly or limited to the clamp;

[0057] The force-adding rod 8 is detachably connected to the end of the connecting arm 11 formed by the force-adding rod 8 and the connecting member 1.

[0058] The main body of the wrench adopts an openable clamping structure, consisting of two semi-circular jaws. It can be flexibly opened and closed through the positioning pin 6 and the positioning groove 7, making it easy to fit into the tightly packed hydraulic lines.

[0059] The operating arm is also equipped with an adjustable lever 8, which can flexibly adjust the lever length according to different pipe diameters and disassembly torque requirements, making it easy and labor-saving.

[0060] Example 2

[0061] like Figures 1-6 As shown, based on embodiment 1, the surfaces of the top ends of the chucks 4 that are in contact with each other are provided with positioning seats 5, the surface of the positioning seat 5 located on the first chuck 41 is connected with a positioning post 6, and the surface of the positioning seat 5 located on the second chuck 42 is provided with a positioning groove 7.

[0062] The positioning post 6 is a conical cylinder, and the positioning groove 7 is a conical cavity that matches the positioning post 6.

[0063] The engagement of the tapered positioning pin 6 with the tapered cavity enables self-centering, ensuring precise engagement of the nut when the chuck 4 is closed, thus reducing operational errors.

[0064] A magnetic ring 9 is nested at the base of the positioning post 6, and a magnetic ring 9 is nested at the edge of the entrance of the positioning groove 7.

[0065] The magnetic ring 9 at the base of the positioning post 6 and the entrance of the positioning groove 7 is quickly closed by magnetic attraction, which can complete the initial fixation without manual adjustment in narrow spaces, thus improving the efficiency of operation.

[0066] The inner wall of the positioning groove 7 is covered with a wear-resistant coating, and the surface of the positioning post 6 is sprayed with a fluorescent coating.

[0067] The wear-resistant coating on the inner wall of the positioning groove 7 extends its service life; the fluorescent coating on the positioning post 6 provides visual guidance in dim environments, facilitating rapid positioning.

[0068] Example 3

[0069] like Figures 1-6 As shown, a hydraulic pipeline connector disassembly wrench includes a clamp 4; the clamp 4 includes a first clamp 41 and a second clamp 42 that are mutually adapted to each other;

[0070] Connector 1, wherein the end of connector 1 is fixedly or limited to the clamp;

[0071] The force-adding rod 8 is detachably connected to the end of the connecting arm 11 formed by the force-adding rod 8 and the connecting member 1.

[0072] The main body of the wrench adopts an openable clamping structure, consisting of two semi-circular jaws. It can be flexibly opened and closed through the positioning pin 6 and the positioning groove 7, making it easy to fit into the tightly packed hydraulic lines.

[0073] The operating arm is also equipped with an adjustable lever 8, which can flexibly adjust the lever length according to different pipe diameters and disassembly torque requirements, making it easy and labor-saving.

[0074] The top surfaces of the chucks 4 that are in contact with each other are provided with positioning seats 5. The surface of the positioning seat 5 located on the first chuck 41 is connected with a positioning post 6, and the surface of the positioning seat 5 located on the second chuck 42 is provided with a positioning groove 7.

[0075] The positioning post 6 is a conical cylinder, and the positioning groove 7 is a conical cavity that matches the positioning post 6.

[0076] The engagement of the tapered positioning pin 6 with the tapered cavity enables self-centering, ensuring precise engagement of the nut when the chuck 4 is closed, thus reducing operational errors.

[0077] A magnetic ring 9 is nested at the base of the positioning post 6, and a magnetic ring 9 is nested at the edge of the entrance of the positioning groove 7.

[0078] The magnetic ring 9 at the base of the positioning post 6 and the entrance of the positioning groove 7 is quickly closed by magnetic attraction, which can complete the initial fixation without manual adjustment in narrow spaces, thus improving the efficiency of operation.

[0079] The inner wall of the positioning groove 7 is covered with a wear-resistant coating, and the surface of the positioning post 6 is sprayed with a fluorescent coating.

[0080] The wear-resistant coating on the inner wall of the positioning groove 7 extends its service life; the fluorescent coating on the positioning post 6 provides visual guidance in dim environments, facilitating rapid positioning.

[0081] The connector 1 includes a first plate-shaped portion and a second plate-shaped portion. The second plate-shaped portion is fixedly connected to the surface of the first plate-shaped portion. A limiting block 2 is connected to the surface of the second plate-shaped portion. The connector 1 and the limiting block 2 are arranged in a stepped manner.

[0082] During the closing or force application of the chuck 4, the limiting block 2 prevents the two chucks 4 from being misaligned in the vertical direction due to uneven force or external interference, ensuring that the chucks 4 remain parallel and aligned when engaging the nut.

[0083] The stepped arrangement uses physical barriers to limit the maximum opening angle of the chuck 4, preventing the tool from colliding with the pipeline or the chuck 4 structure from being damaged due to excessive opening.

[0084] A magnetic block 3 is installed on the surface of the first plate-shaped portion near the limiting block 2, and the magnetic block 3 is evenly arranged along the surface of the first plate-shaped portion.

[0085] The magnetic attraction assists in a tight fit of the connector 1, reducing the risk of loosening due to vibration or external force. In confined spaces, the magnetic force guides the chuck to quickly adhere to the target position, reducing manual adjustment time.

[0086] The limit block and the magnetic block work together. The limit block ensures that the movement trajectory of the chuck is controllable through physical restriction, while the magnetic block maintains the stability of the connection through magnetic attraction. The two work together to enable the chuck to accurately engage the nut within the limit range. The magnetic force helps to reduce deviation. Under vibration or tilting conditions, the magnetic attraction force and the mechanical blocking of the limit block work together to prevent the tool from loosening.

[0087] The surface of the force-adding rod 8 is provided with anti-slip texture.

[0088] Example 4

[0089] A method for using a hydraulic pipeline connector disassembly wrench: When using the wrench, insert the first collet 41 into one side of the gap in the parallel gap of the hydraulic pipeline, and adjust the angle to contact the target nut; by slightly rotating the connector 1, the first collet 41 engages with the nut. At this time, the positioning seat 5 of the first collet 41 is aligned with the edge of the nut; insert the second collet 42 into the gap on the other side of the pipeline, and rotate to adjust its angle so that the positioning seat 5 of the second collet 42 is symmetrically distributed with the first collet 41. The fluorescent coating on the surface of the positioning post 6 provides visual guidance in dim environments, helping to quickly confirm the alignment accuracy; push the second collet 42 from bottom to top, causing the positioning post 6 to embed into the positioning groove 7. The magnetic ring 9 at the root of the positioning post 6 and the entrance of the positioning groove 7 generates magnetic attraction, assisting the collet 4 in quickly closing and locking, preventing loosening due to vibration or external force;

[0090] Meanwhile, the connectors 1 combine to form the connecting arm 11, which is positioned and engaged under the action of the magnetic block 3 to prevent loosening under vibration or tilting conditions; the force-applying rod 8 is connected to the end of the connector 1, and the operator holds the anti-slip textured area of ​​the force-applying rod 8; the force-applying rod 8 applies a rotational torque, and the clamp 4 bites the nut in the closed state, completing the disassembly and assembly operation.

[0091] After the operation is completed, rotate the force lever 8 in the opposite direction to release the torque, tap or tilt the wrench to weaken the attraction of the magnetic ring 9, and separate the first chuck 41 from the second chuck 42.

[0092] It will be apparent 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 invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within the present invention.

[0093] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A disassembly wrench for hydraulic pipeline joints, characterized in that: The chuck (4) includes a first chuck (41) and a second chuck (42) that are adapted to each other. Connector (1), the end of the connector (1) is fixedly or limited to the clamp; The end of the connecting arm (11) formed by the force-adding rod (8) and the connecting member (1) is detachably connected.

2. The hydraulic pipeline connector disassembly wrench according to claim 1, characterized in that: The top surfaces of the chucks (4) that are in contact with each other are provided with positioning seats (5). The surface of the positioning seat (5) located on the first chuck (41) is connected with a positioning post (6). The surface of the positioning seat (5) located on the second chuck (42) is provided with a positioning groove (7).

3. A hydraulic pipeline connector disassembly wrench according to claim 2, characterized in that: The positioning post (6) is a conical cylinder, and the positioning groove (7) is a conical cavity that matches the positioning post (6).

4. A hydraulic pipeline connector disassembly wrench according to claim 3, characterized in that: A magnetic ring (9) is nested at the root of the positioning post (6), and a magnetic ring (9) is nested at the edge of the entrance of the positioning groove (7).

5. A hydraulic pipeline connector disassembly wrench according to claim 4, characterized in that: The inner wall of the positioning groove (7) is covered with a wear-resistant coating, and the surface of the positioning post (6) is sprayed with a fluorescent coating.

6. A hydraulic pipeline connector disassembly wrench according to claim 1, characterized in that: The connector (1) includes a first plate-shaped part and a second plate-shaped part. The second plate-shaped part is fixedly connected to the surface of the first plate-shaped part. A limiting block (2) is connected to the surface of the second plate-shaped part. The connector (1) and the limiting block (2) are arranged in a stepped manner.

7. A hydraulic pipeline connector disassembly wrench according to claim 6, characterized in that: A magnetic block (3) is installed on the surface of the first plate-shaped part near the limiting block (2), and the magnetic block (3) is evenly arranged along the surface of the first plate-shaped part.

8. A hydraulic pipeline connector disassembly wrench according to claim 1, characterized in that: The surface of the force-adding rod (8) is provided with anti-slip texture.

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