Pipeline joint for hydraulic equipment
The design of the connecting block and disconnection mechanism solves the problem of difficult connection and disassembly of hydraulic equipment pipe joints during the maintenance of large equipment, realizing fast and stable connection and disassembly, and improving maintenance efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DEYANG HAIQIXUN HYDRAULIC & ELECTRICAL CO LTD
- Filing Date
- 2025-07-15
- Publication Date
- 2026-05-19
AI Technical Summary
Existing hydraulic equipment pipe joints require a lot of manpower and time to connect and disassemble during the maintenance of large equipment, and are prone to corrosion, making disassembly difficult and affecting maintenance efficiency.
The design incorporates connecting blocks and disconnection mechanisms, enabling quick connection and disassembly through the cooperation of T-shaped locking blocks and limiting posts, simplifying operation steps and reducing reliance on tools and technical skills.
It enables rapid connection and disconnection of hydraulic equipment pipelines, reduces installation and disassembly time, improves maintenance efficiency, and reduces the risk of hydraulic oil leakage.
Smart Images
Figure CN224261147U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pipe joint technology, and in particular to a pipe joint for hydraulic equipment. Background Technology
[0002] In hydraulic equipment, pipe joints play a crucial role. Hydraulic systems rely on pipes to transmit high-pressure fluids to achieve various mechanical actions and force transmission. As key components connecting pipes to pipes and hydraulic components, the performance of pipe joints directly affects the stability, reliability, and working efficiency of the entire hydraulic system.
[0003] In large-scale hydraulic equipment maintenance scenarios, the number of existing pipe joints used for hydraulic equipment can reach hundreds in a single maintenance. Traditional threaded connections require repeated tightening with special tools to achieve the specified torque during installation, resulting in time and manpower consumption, extending downtime maintenance cycles, and seriously affecting production efficiency. Furthermore, if the threads are corroded or jammed due to long-term high-pressure operation, additional methods such as rust removers and heating are required during disassembly, further increasing the maintenance workload. Therefore, we have introduced a new type of pipe joint for hydraulic equipment. Utility Model Content
[0004] The main objective of this invention is to provide a pipe joint for hydraulic equipment, which can effectively solve the problems in the background art.
[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0006] A pipe joint for hydraulic equipment includes a fixed pipe, a connecting seat fixedly connected to the right end of the fixed pipe, a connecting groove formed at the right end of the connecting seat, a connecting mechanism engaged inside the connecting groove, a conveying pipe fixedly installed at the right end of the connecting mechanism, through-holes forming in the middle of the front and rear walls of the connecting groove, a disconnection mechanism fixedly connected to the front and rear surfaces of the connecting seat, a sealing ring inside the connecting groove, and fixing blocks fixedly connected to the upper right and lower right surfaces of the connecting seat, with T-shaped slots formed at both right ends.
[0007] Preferably, the connecting mechanism includes a connecting block, the connecting block having a connecting channel inside, a T-shaped locking block fixedly connected to the upper right and lower right parts of the outer surface of the connecting block, a telescopic groove opened on the front side and the rear side of the inner middle of the connecting block, a compression spring fixedly connected to the inner wall of the two telescopic grooves near the connecting channel, a connecting piece fixedly connected to the end of the two compression springs away from the connecting channel, and a limit post fixedly connected to the end of the two connecting pieces away from the compression spring.
[0008] Preferably, the right end of the connecting block is fixedly connected to the conveying pipe, and the connecting block is engaged with the connecting groove. The left end of the connecting block is tightly fitted with the sealing ring, and the two T-shaped locking blocks are engaged with the two T-shaped locking grooves respectively.
[0009] By adopting the above technical solution—where the connecting block is inserted into the connecting slot and the T-shaped card block is inserted into the T-shaped card slot—the stability of the connection is ensured.
[0010] Preferably, the two connecting pieces are located inside the two telescopic grooves, the two limiting posts are respectively inserted and engaged with the two limiting holes, and the two limiting posts are respectively slidably connected to the two telescopic grooves.
[0011] By adopting the above technical solution, the two limiting posts automatically pop out from the two limiting holes under the elastic force of the compression spring and respectively engage with the two limiting grooves, which can realize the rapid connection between the delivery pipe and the hydraulic equipment.
[0012] Preferably, the disconnection mechanism includes a fixed cylinder, a limiting groove is formed at the front end of the fixed cylinder, a sliding groove is formed on the upper part of the outer surface of the fixed cylinder, a tension spring is fixedly connected to the rear wall of the limiting groove, a push block is fixedly connected to the end of the tension spring away from the rear wall of the limiting groove, and a push rod is fixedly connected to the rear side of the upper part of the outer surface of the push block.
[0013] Preferably, the front end of the fixed cylinder is fixedly connected to the connecting seat, the sliding groove is internally connected to the limiting groove, and the pushing rod is slidably connected to the sliding groove.
[0014] By adopting the above technical solution, the push rod can make the push block slide inside the limiting groove.
[0015] Preferably, the pushing block is slidably connected to the limiting groove, and the longitudinal position of the pushing block corresponds to that of the limiting post.
[0016] By adopting the above technical solution: when the pushing block moves in the limiting groove, it will contact the limiting post and squeeze and push it, causing the limiting post to slide into the telescopic groove and disengage from the limiting groove and the limiting hole.
[0017] Compared with the prior art, the present invention has the following beneficial effects:
[0018] 1. By setting up a connecting mechanism, the connecting block is placed on the right side of the connecting seat, and the two T-shaped locking blocks are aligned with the positions of the two T-shaped locking slots respectively. The operator only needs to apply force to the two limiting posts inward, so that the two limiting posts slide into the two telescopic grooves respectively and compress the compression spring through the connecting plate. Then, the connecting block is inserted into the connecting groove, and the two T-shaped locking blocks will be inserted into the two T-shaped locking slots simultaneously. When the left side of the connecting block contacts the sealing ring, the two limiting posts automatically pop out from the two limiting holes under the elastic force of the compression spring and are respectively locked into the two limiting grooves. The whole process does not require complicated tools, and only requires simple pressing operation to achieve quick connection between the delivery pipe and the hydraulic equipment. Compared with the traditional threaded connection, this structure shortens the installation time and reduces the dependence on the operator's technical level. At the same time, the cooperation of the compression spring and the limiting structure ensures the stability of the connection and reduces the problem of hydraulic oil leakage caused by loose connection.
[0019] 2. By setting up a disconnection mechanism, when the conveying pipe needs to be disassembled, by moving the two push rods closer together, the two push blocks move relative to each other in the limiting groove, and the tension spring is stretched. When the two push blocks move relative to each other in the limiting groove, they will contact the two limiting posts and squeeze and push them, causing the two limiting posts to slide into the two telescopic grooves respectively and disengage from the limiting groove and limiting hole. Then, the connecting block can be pulled out directly to the right to complete the disassembly of the conveying pipe. The two tension springs and the push blocks are reset, which is convenient for the next connection operation. In the process of disconnecting the conveying pipe, the traditional threaded connection method requires the use of wrenches and other tools to loosen it repeatedly. In the case of rust and jamming, it is even more time-consuming and laborious. However, with the disconnection mechanism, it is only necessary to move the two push rods closer together to trigger the tension spring and the linkage mechanism of the push block. The entire disassembly process does not require complicated tools, the operation is simple and direct, shortens the disassembly time, and improves maintenance efficiency. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the overall structure of a pipe joint for hydraulic equipment according to the present invention;
[0021] Figure 2 This is a schematic diagram of the overall structure of a connecting seat for a pipe joint in hydraulic equipment according to the present invention;
[0022] Figure 3 This is a schematic diagram of the overall structure of a pipe joint connection mechanism for hydraulic equipment according to the present invention;
[0023] Figure 4 This is a schematic diagram of the overall structure of a disconnection mechanism for a pipe joint in hydraulic equipment according to the present invention.
[0024] In the diagram: 1. Fixed pipe; 2. Connecting seat; 3. Connecting groove; 4. Connecting mechanism; 41. Connecting block; 42. Connecting channel; 43. T-shaped locking block; 44. Telescopic groove; 45. Compression spring; 46. Connecting piece; 47. Limiting post; 5. Conveying pipe; 6. Limiting hole; 7. Disconnection mechanism; 71. Fixed cylinder; 72. Limiting groove; 73. Sliding groove; 74. Tension spring; 75. Pushing block; 76. Pushing rod; 8. Sealing ring; 9. Fixed block; 10. T-shaped locking groove. Detailed Implementation
[0025] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0026] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0028] Please see Figure 1-4 This utility model provides a technical solution:
[0029] A pipe joint for hydraulic equipment includes a fixed pipe 1, a connecting seat 2 fixedly connected to the right end of the fixed pipe 1, a connecting groove 3 opened at the right end of the connecting seat 2, a connecting mechanism 4 engaged inside the connecting groove 3, a conveying pipe 5 fixedly installed at the right end of the connecting mechanism 4, through limiting holes 6 opened in the middle of the front groove wall and the middle of the rear groove wall of the connecting groove 3, a disconnection mechanism 7 fixedly connected to the front and rear of the outer surface of the connecting seat 2, a sealing ring 8 provided inside the connecting groove 3, a fixing block 9 fixedly connected to the upper right and lower right of the outer surface of the connecting seat 2, and a T-shaped slot 10 opened at both right ends.
[0030] In this embodiment, the connecting mechanism 4 includes a connecting block 41. A connecting channel 42 is provided inside the connecting block 41. T-shaped locking blocks 43 are fixedly connected to the upper right and lower right parts of the outer surface of the connecting block 41. Telescopic grooves 44 are provided on the front and rear sides of the inner center of the connecting block 41. Compression springs 45 are fixedly connected to the inner walls of the two telescopic grooves 44 near the connecting channel 42. Connecting pieces 46 are fixedly connected to the ends of the two compression springs 45 away from the connecting channel 42. One end of the compression spring 45 is fixedly connected to a limiting post 47. The right end of the connecting block 41 is fixedly connected to the conveying pipe 5, and the connecting block 41 is engaged with the connecting groove 3. The left end of the connecting block 41 is tightly fitted with the sealing ring 8. The two T-shaped locking blocks 43 are engaged with the two T-shaped locking grooves 10 respectively. The two connecting pieces 46 are located inside the two telescopic grooves 44 respectively. The two limiting posts 47 are inserted and engaged with the two limiting holes 6 respectively, and the two limiting posts 47 are slidably connected to the two telescopic grooves 44 respectively.
[0031] With the above solution: by placing the connecting block 41 on the right side of the connecting seat 2 and aligning the two T-shaped locking blocks 43 with the positions of the two T-shaped locking slots 10 respectively, the operator only needs to apply force to the two limiting posts 47 inward, causing the two limiting posts 47 to slide into the two telescopic grooves 44 respectively and compress the compression spring 45 through the connecting piece 46. Then, the connecting block 41 is inserted into the connecting groove 3, and the two T-shaped locking blocks 43 will be inserted into the two T-shaped locking slots 10 simultaneously. When the left side of the connecting block 41 contacts the sealing ring 8, the two limiting posts 47 will automatically pop out from the two limiting holes 6 under the elastic reset of the compression spring 45 and be inserted into the two limiting grooves 72 respectively. The whole process does not require complicated tools and only requires simple pressing operation to achieve quick connection between the conveying pipe 5 and the hydraulic equipment.
[0032] In this embodiment, the disconnection mechanism 7 includes a fixed cylinder 71. A limiting groove 72 is formed at the front end of the fixed cylinder 71. A sliding groove 73 is formed on the upper part of the outer surface of the fixed cylinder 71. A tension spring 74 is fixedly connected to the rear wall of the limiting groove 72. A pushing block 75 is fixedly connected to one end of the tension spring 74 away from the rear wall of the limiting groove 72. A pushing rod 76 is fixedly connected to the rear side of the upper part of the outer surface of the pushing block 75. The front end of the fixed cylinder 71 is fixedly connected to the connecting seat 2. The sliding groove 73 communicates with the interior of the limiting groove 72. The pushing rod 76 is slidably connected to the sliding groove 73. The pushing block 75 is slidably connected to the limiting groove 72, and the longitudinal position of the pushing block 75 corresponds to that of the limiting post 47.
[0033] With the above solution: when it is necessary to disassemble the conveying pipe 5, by moving the two push rods 76 closer to each other, the two push blocks 75 move relative to each other in the limiting groove 72 and the tension spring 74 is stretched. When the two push blocks 75 move relative to each other in the limiting groove 72, they will contact the two limiting posts 47 and squeeze and push them, so that the two limiting posts 47 slide into the two telescopic grooves 44 respectively and disengage from the limiting groove 72 and the limiting hole 6. Then, the connecting block 41 can be pulled out directly to the right to complete the disassembly of the conveying pipe 5. The two tension springs 74 and the push blocks 75 are reset, which is convenient for the next connection operation.
[0034] It should be noted that this utility model is a pipe joint for hydraulic equipment. During use, the fixed pipe 1 is fixedly installed on the hydraulic equipment. When it is necessary to connect the delivery pipe 5, the specific steps are as follows: First, place the connecting block 41 on the right side of the connecting seat 2, and ensure that the two T-shaped locking blocks 43 are precisely aligned with the positions of the two T-shaped locking slots 10. Then, the operator only needs to press the two limiting posts 47 inward, so that they slide inward along the two telescopic grooves 44 respectively. During this process, the connecting piece 46 will compress the compression spring 45. Then, the connecting block 41 is inserted into the connecting groove 3. Inside, at this time, the two T-shaped locking blocks 43 will simultaneously engage with the two T-shaped locking slots 10. When the left side of the connecting block 41 tightly contacts the sealing ring 8, under the elastic force of the compression spring 45, the two limiting posts 47 will automatically pop out from the two limiting holes 6 and engage with the two limiting grooves 72 respectively. The entire connection process does not require the use of complex tools, but only requires a simple pressing operation to quickly complete the connection between the conveying pipe 5 and the hydraulic equipment. Compared with the traditional threaded connection method, this structure shortens the installation time and reduces the dependence on the operator's technical level. At the same time, through the compression spring 45 and the limiting structure The close cooperation ensures the stability of the connection and reduces hydraulic oil leakage caused by loose connections. When it is necessary to disassemble the delivery pipe 5, the operation is equally simple: just move the two push rods 76 closer to each other, so that the two push blocks 75 slide relative to each other in the limiting groove 72, and stretch the tension spring 74. During this process, the two push blocks 75 will contact the two limiting posts 47 and squeeze and push them, so that the two limiting posts 47 slide inward along the two telescopic grooves 44 respectively, and finally disengage from the limiting groove 72 and the limiting hole 6. Then, simply pull out the connecting block 41 to the right to easily complete the delivery. After the disassembly of the delivery pipe 5, the two tension springs 74 will drive the push block 75 to automatically reset, preparing for the next connection operation. In the disassembly of the delivery pipe 5, compared with the traditional threaded connection method, the latter often requires the use of wrenches and other tools to loosen repeatedly during disassembly. If rust or jamming occurs, it is even more time-consuming and laborious. However, through the disconnection mechanism 7, it is only necessary to move the two push rods 76 closer to each other to trigger the linkage mechanism of tension spring 74 and push block 75, so as to achieve quick disassembly. The entire disassembly process does not require complicated tools, the operation is simple and direct, shortens the disassembly time, and improves maintenance efficiency.
[0035] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A pipe fitting for hydraulic equipment, comprising a fixed pipe (1), characterized in that: The right end of the fixed pipe (1) is fixedly connected to a connecting seat (2), the right end of the connecting seat (2) is provided with a connecting groove (3), the connecting groove (3) is connected with a connecting mechanism (4), the right end of the connecting mechanism (4) is fixedly installed with a conveying pipe (5), the middle of the front groove wall and the middle of the rear groove wall of the connecting groove (3) are provided with through limiting holes (6), the front and rear of the outer surface of the connecting seat (2) are fixedly connected with a disconnection mechanism (7), the connecting groove (3) is provided with a sealing ring (8), the upper right and lower right of the outer surface of the connecting seat (2) are fixedly connected with a fixing block (9), and both right ends are provided with T-shaped slots (10). The connecting mechanism (4) includes a connecting block (41), a connecting channel (42) is provided inside the connecting block (41), a T-shaped card block (43) is fixedly connected to the upper right part and the lower right part of the outer surface of the connecting block (41), a telescopic groove (44) is provided on the front side and the rear side of the inner middle part of the connecting block (41), a compression spring (45) is fixedly connected to the inner wall of the two telescopic grooves (44) near the connecting channel (42), a connecting piece (46) is fixedly connected to the end of the two compression springs (45) away from the connecting channel (42), and a limit post (47) is fixedly connected to the end of the two connecting pieces (46) away from the compression spring (45).
2. A pipe joint for hydraulic equipment according to claim 1, characterized in that: The right end of the connecting block (41) is fixedly connected to the conveying pipe (5), and the connecting block (41) is engaged with the connecting groove (3). The left end of the connecting block (41) is tightly fitted with the sealing ring (8). The two T-shaped blocks (43) are engaged with the two T-shaped slots (10) respectively.
3. A pipe joint for hydraulic equipment according to claim 1, characterized in that: The two connecting pieces (46) are located inside the two telescopic grooves (44) respectively, and the two limiting posts (47) are respectively inserted and engaged with the two limiting holes (6), and the two limiting posts (47) are respectively inserted and slidably connected to the two telescopic grooves (44).
4. A pipe joint for hydraulic equipment according to claim 1, characterized in that: The disconnection mechanism (7) includes a fixed cylinder (71), a limiting groove (72) is provided at the front end of the fixed cylinder (71), a sliding groove (73) is provided on the upper part of the outer surface of the fixed cylinder (71), a tension spring (74) is fixedly connected to the rear wall of the limiting groove (72), a push block (75) is fixedly connected to the end of the tension spring (74) away from the rear wall of the limiting groove (72), and a push rod (76) is fixedly connected to the rear side of the upper part of the outer surface of the push block (75).
5. A pipe joint for hydraulic equipment according to claim 4, characterized in that: The front end of the fixed cylinder (71) is fixedly connected to the connecting seat (2), the sliding groove (73) is internally connected to the limiting groove (72), and the push rod (76) is slidably connected to the sliding groove (73).
6. A pipe joint for hydraulic equipment according to claim 4, characterized in that: The push block (75) is slidably connected to the limiting groove (72), and the push block (75) corresponds to the longitudinal position of the limiting post (47).