Winding hydraulic pipe joint

Abstract

The utility model discloses a winding hydraulic pipe joint, which relates to the technical field of hydraulic pipe joints and comprises a hydraulic pipe, the hydraulic pipe joint is arranged on one side of the hydraulic pipe, connecting components are symmetrically arranged at two ends of the hydraulic pipe joint, each connecting component comprises a butt flange, and a connecting bolt and a fixing nut are arranged in the middle of each butt flange. A limiting assembly is arranged on the side face of the butt joint flange, the connecting assembly further comprises an insertion outer pipe, a sealing inner pipe is arranged in the insertion outer pipe, a sealing insertion pipe is arranged between the insertion outer pipe and the sealing inner pipe, and a butt joint groove is formed in the side face of the sealing insertion pipe. According to the hydraulic pipe joint, the outer inserting pipe, the inner sealing pipe and the sealing inserting pipe are inserted into the butt joint groove, the interior of the sealing inserting pipe and the interior of the inserting groove respectively, so that the sealing effect of the joint of the hydraulic pipe and the hydraulic pipe joint is improved; and stable connection between the hydraulic pipe and the hydraulic pipe joint is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic pipe joints, in particular to a winding hydraulic pipe joint. Background Art

[0002] Hydraulic pipe fittings are parts that connect pipes in hydraulic systems or install pipes on hydraulic components. They are a general term for connectors that can be installed and removed in fluid passages. With the development of the machinery industry and the increase in various technical indicators, the requirements for hydraulic pipe fittings are getting higher and higher.

[0003] Most of the existing hydraulic pipe joints are connected to the hydraulic pipe by bolted flanges. After long-term use, the bolts of the joints are prone to slip, resulting in defects such as the hydraulic pipe and the hydraulic pipe joint not being fastened or not being fastened in place, which is easy to cause leakage. It will also affect the sealing effect of the right-angle hydraulic pipe joint, causing hydraulic oil leakage, thereby causing resource waste and environmental pollution. Therefore, it is necessary to provide a winding hydraulic pipe joint to solve the problem. Utility Model Content

[0004] The main purpose of the utility model is to provide a winding hydraulic pipe joint, which can effectively solve the problems in the background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A winding hydraulic pipe joint comprises a hydraulic pipe, one side of the hydraulic pipe is provided with a hydraulic pipe joint, and both ends of the hydraulic pipe joint are symmetrically provided with connecting components;

[0007] The connection assembly comprises a docking flange, a connecting bolt is arranged in the middle of the docking flange, a fixing nut is arranged at one end of the connecting bolt, and a limiting assembly is arranged on the side of the docking flange;

[0008] The connection assembly also includes a plug-in outer tube, a sealed inner tube is arranged inside the plug-in outer tube, and a sealed plug-in tube is arranged between the plug-in outer tube and the sealed inner tube, and a docking groove is arranged on the side of the sealed plug-in tube;

[0009] The limiting assembly includes a mounting frame, a mounting ear plate is provided on one side of the mounting frame, a pulling plate is provided in the middle of one side of the mounting frame, and an L-shaped mounting frame is provided on the other side of the mounting frame, a square limiting strip is provided in the middle of the pulling plate, a limiting sliding rod is provided in the middle of the bottom of the L-shaped mounting frame, and a limiting top plate is provided at one end of the limiting sliding rod, and a positioning spring is provided at the bottom of the limiting top plate.

[0010] Preferably, the docking flange is fixedly connected to the outer wall of the hydraulic pipe joint, and there are multiple docking flanges, which are symmetrically distributed at the connections between the two ends of the hydraulic pipe joint and the hydraulic pipe. The docking flange at one end of the hydraulic pipe is arranged corresponding to the docking flange on the outer wall of the hydraulic pipe joint, and the two docking flanges are connected by connecting bolts. The connecting bolts are threadedly connected to a fixing nut at one end close to the hydraulic pipe joint. There are four connecting bolts, which are evenly distributed in the middle of the docking flanges.

[0011] Preferably, a plug-in outer tube is fixedly connected in the middle of one end of the hydraulic pipe joint, and the plug-in outer tube is plugged into the inside of the hydraulic pipe joint, and the end of the plug-in outer tube away from the hydraulic pipe joint is plugged into the inside of the hydraulic pipe, and a docking groove is provided at the end of the hydraulic pipe close to the hydraulic pipe joint, and the docking groove is located between the hydraulic pipe and the sealing plug-in tube, and the plug-in outer tube is plugged into the inside of the docking groove.

[0012] Preferably, a sealed inner tube is fixedly connected to the inside of one end of the plug-in outer tube away from the hydraulic pipe joint, and the sealed inner tube is arranged in an L-shape inside the plug-in outer tube, the sealed inner tube is plugged into the inside of the sealed plug tube, and the sealed plug tube is plugged into the plug-in groove between the sealed inner tube and the plug-in outer tube, and there are two sealed inner tubes, which are symmetrically distributed at both ends of the plug-in outer tube.

[0013] Preferably, a mounting ear plate is fixedly connected to one side of the mounting frame close to the docking flange, and there are two mounting ear plates, which are symmetrically distributed on both sides of the mounting frame. The mounting ear plate is connected to the docking flange by bolts. The mounting frame is located on one side of the docking flange close to the middle of the hydraulic pipe joint, and the mounting frame is sleeved on the outside of the fixing nut.

[0014] Preferably, one side of the mounting frame is in contact with the pulling plate, and a square limit bar is fixedly connected to the side of the pulling plate close to the mounting frame, the end of the square limit bar away from the pulling plate passes through the middle of the mounting frame and the connecting bolt, and a limiting groove is provided on the outer wall of the end of the square limit bar away from the pulling plate, an L-shaped mounting frame is installed on the side of the mounting frame away from the pulling plate by bolts, the L-shaped mounting frame is arranged adjacent to the square limit bar, and a limiting slide rod is slidably connected to the bottom middle of the L-shaped mounting frame.

[0015] Preferably, the bottom end of the limit slide rod passes through the L-shaped mounting frame and is connected to the inside of the limit groove at the top of the square limit bar. The top of the limit slide rod is fixedly connected to the limit top plate. The bottom of the limit top plate is fixedly connected with a positioning spring, and the positioning spring is sleeved on the outside of the limit slide rod. The end of the positioning spring away from the limit top plate is fixedly connected to the bottom inner wall of the L-shaped mounting frame.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] 1. The plug-in outer tube, the sealing inner tube and the sealing plug-in tube are respectively plugged into the docking groove, the inside of the sealing plug-in tube and the inside of the plug-in groove, thereby improving the sealing effect of the connection between the hydraulic pipe and the hydraulic pipe joint. The two docking flanges are connected by the provided connecting bolts to achieve a stable connection between the hydraulic pipe and the hydraulic pipe joint.

[0018] 2. The square limit bar is inserted in the middle of the connecting bolt to limit the connecting bolt, preventing the subsequent connecting bolt from slipping and separating from the fixing nut, which affects the connection stability between the hydraulic pipe and the hydraulic pipe joint. The limit sliding rod is inserted in the limit groove of the square limit bar away from the end of the pulling plate, thereby realizing the positioning of the square limit bar and improving the stability of the pulling plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is an overall stereogram of the device of the utility model;

[0020] Figure 2 It is a structural schematic diagram of the connection assembly of the utility model;

[0021] Figure 3 This utility model Figure 2 The enlarged structural diagram at A in the middle;

[0022] Figure 4 It is a partial structural diagram of the limit assembly of the utility model.

[0023] In the figure: 1. hydraulic pipe; 2. hydraulic pipe joint; 3. connection assembly; 4. docking flange; 5. plug-in outer pipe; 6. sealed inner pipe; 7. plug-in groove; 8. sealed plug-in tube; 9. docking groove; 10. connecting bolt; 11. fixing nut; 12. limit assembly; 13. mounting frame; 14. mounting ear plate; 15. pulling plate; 16. square limit strip; 17. L-shaped mounting frame; 18. limit slide bar; 19. limit top plate; 20. positioning spring; 21. limit groove. DETAILED DESCRIPTION

[0024] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0025] See also Figure 1 , Figure 2 , Figure 3 As shown, a winding hydraulic pipe joint comprises a hydraulic pipe 1, a hydraulic pipe joint 2 is arranged on one side of the hydraulic pipe 1, and connecting components 3 are symmetrically arranged at both ends of the hydraulic pipe joint 2;

[0026] The connecting assembly 3 includes a docking flange 4, a connecting bolt 10 is arranged in the middle of the docking flange 4, a fixing nut 11 is arranged at one end of the connecting bolt 10, a limiting assembly 12 is arranged on the side of the docking flange 4, the docking flange 4 is fixedly connected to the outer wall of the hydraulic pipe joint 2, and there are multiple docking flanges 4, which are symmetrically distributed at the connection between the two ends of the hydraulic pipe joint 2 and the hydraulic pipe 1, and the docking flange 4 at one end of the hydraulic pipe 1 is arranged corresponding to the docking flange 4 on the outer wall of the hydraulic pipe joint 2, and the two docking flanges 4 are connected by the connecting bolt 10, and the end of the connecting bolt 10 close to the hydraulic pipe joint 2 is connected to the fixing nut 11 by threading, and there are four connecting bolts 10, which are evenly distributed in the middle of the docking flange 4;

[0027] The connection assembly 3 also includes a plug-in outer tube 5, a sealed inner tube 6 is arranged inside the plug-in outer tube 5, and a sealed plug-in tube 8 is arranged between the plug-in outer tube 5 and the sealed inner tube 6, and a docking groove 9 is arranged on the side of the sealed plug-in tube 8, and the plug-in outer tube 5 is fixedly connected to the middle of one end of the hydraulic pipe joint 2, and the plug-in outer tube 5 is plugged into the inside of the hydraulic pipe joint 2, and the end of the plug-in outer tube 5 away from the hydraulic pipe joint 2 is plugged into the inside of the hydraulic pipe 1, and the end of the hydraulic pipe 1 close to the hydraulic pipe joint 2 is provided with a docking groove 9, and the docking groove 9 is located between the hydraulic pipe 1 and the sealed plug-in tube 8, the plug-in outer tube 5 is plugged into the inside of the docking groove 9, and the end of the plug-in outer tube 5 away from the hydraulic pipe joint 2 is fixed inside A sealed inner tube 6 is connected, and the sealed inner tube 6 is L-shaped and arranged inside the plug-in outer tube 5. The sealed inner tube 6 is plugged into the inside of the sealed plug-in tube 8, and the sealed plug-in tube 8 is plugged into the plug-in groove 7 between the sealed inner tube 6 and the plug-in outer tube 5. There are two sealed inner tubes 6, which are symmetrically distributed at both ends of the plug-in outer tube 5. The plug-in outer tube 5, the sealed inner tube 6 and the sealed plug-in tube 8 are respectively plugged into the docking groove 9, the inside of the sealed plug-in tube 8 and the inside of the plug-in groove 7, thereby improving the sealing effect of the connection between the hydraulic pipe 1 and the hydraulic pipe joint 2. The two docking flanges 4 are connected by the provided connecting bolts 10 to achieve a stable connection between the hydraulic pipe 1 and the hydraulic pipe joint 2;

[0028] See also Figure 1 , Figure 2 , Figure 3 , Figure 4As shown, the limiting assembly 12 includes a mounting frame 13, a mounting ear plate 14 is arranged on one side of the mounting frame 13, a pulling plate 15 is arranged in the middle of one side of the mounting frame 13, and an L-shaped mounting frame 17 is arranged on the other side of the mounting frame 13, a square limiting strip 16 is arranged in the middle of the pulling plate 15, a limiting slide bar 18 is arranged in the middle of the bottom of the L-shaped mounting frame 17, and a limiting top plate 19 is arranged at one end of the limiting slide bar 18, and a positioning spring 20 is arranged at the bottom of the limiting top plate 19, and the mounting ear plate 14 is fixedly connected to the side of the mounting frame 13 close to the docking flange 4, and the mounting ear plate There are two 14, which are symmetrically distributed on both sides of the installation frame 13. The installation ear plate 14 is connected to the docking flange 4 by bolts. The installation frame 13 is located on the side of the docking flange 4 close to the middle of the hydraulic pipe joint 2, and the installation frame 13 is sleeved on the outside of the fixing nut 11. One side of the installation frame 13 is in contact with the pulling plate 15, and the pulling plate 15 is fixedly connected to the side of the installation frame 13 close to the installation frame 13 with a square limit bar 16. The end of the square limit bar 16 away from the pulling plate 15 passes through the middle of the installation frame 13 and the connecting bolt 10, and the outer wall of the end of the square limit bar 16 away from the pulling plate 15 A limiting groove 21 is provided on the top of the mounting frame 13, and an L-shaped mounting frame 17 is installed on the side away from the pulling plate 15 by bolts. The L-shaped mounting frame 17 is arranged adjacent to the square limiting strip 16, and the bottom middle of the L-shaped mounting frame 17 is slidably connected to the limiting slide bar 18, and the bottom end of the limiting slide bar 18 passes through the L-shaped mounting frame 17 and is connected to the inside of the limiting groove 21 at the top of the square limiting strip 16, and the top of the limiting slide bar 18 is fixedly connected to the limiting top plate 19, and the bottom of the limiting top plate 19 is fixedly connected to a positioning spring 20, and the positioning spring 20 is sleeved on the outside of the limiting slide bar 18, and the positioning spring 20 is fixedly connected to the outside of the limiting slide bar 18. The end of the positioning spring 20 away from the limiting top plate 19 is fixedly connected to the bottom inner wall of the L-shaped mounting frame 17, and the square limiting strip 16 is inserted in the middle of the connecting bolt 10 to limit the connecting bolt 10, thereby preventing the subsequent connecting bolt 10 from slipping and separating from the fixing nut 11, which affects the connection stability between the hydraulic pipe 1 and the hydraulic pipe joint 2. The limiting slide rod 18 is inserted into the limiting groove 21 at the end of the square limiting strip 16 away from the pulling plate 15, thereby achieving the positioning of the square limiting strip 16 and improving the stability of the pulling plate 15.

[0029] It should be noted that the utility model is a winding hydraulic pipe joint. When in use, the plug-in outer tube 5 and the sealed inner tube 6 at one end of the hydraulic pipe joint 2 are respectively plugged into the docking groove 9 at one end of the hydraulic pipe 1 and the inside of the sealed plug-in tube 8. At the same time, the sealed plug-in tube 8 at one end of the hydraulic pipe 1 is plugged into the plug-in groove 7 between the plug-in outer tube 5 and the sealed inner tube 6, thereby improving the sealing effect of the connection between the hydraulic pipe 1 and the hydraulic pipe joint 2, preventing leakage during use and affecting the service life of the device. When the three are combined, the docking flange 4 at one end of the hydraulic pipe 1 fits with the docking flange 4 at one end of the hydraulic pipe joint 2, and the connecting bolt 10 passes through the two docking flanges 4. The fixing nut 11 is fixed to the end of the connecting bolt 10 close to the hydraulic pipe joint 2, and the fixing nut 11 is used to realize the connection of the connecting bolt 10 is tightened, and then the limiting top plate 19 is pulled, so that the limiting top plate 19 drives the limiting slide bar 18 and the positioning spring 20 to stretch, and the pulling plate 15 and the square limiting strip 16 are inserted in the middle of the installation frame 13, so that the square limiting strip 16 passes through the installation frame 13 and is connected to the side of the installation frame 13 away from the pulling plate 15, and at the same time, the limiting groove 21 on the outer wall of the square limiting strip 16 is kept at the bottom. When one side of the pulling plate 15 contacts the outer wall of the installation frame 13, the limiting top plate 19 is released, so that the positioning spring 20 drives the limiting top plate 19 and the limiting slide bar 18 to rebound, so that the limiting slide bar 18 is inserted in the limiting groove 21 on the outer wall of the square limiting strip 16, thereby realizing stable limiting of the limiting slide bar 18 and improving the limiting stability of the limiting slide bar 18 on the connecting bolt 10.

[0030] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A wound hydraulic pipe joint, comprising a hydraulic pipe (1), characterized in that: A hydraulic pipe joint (2) is provided on one side of the hydraulic pipe (1), and connecting components (3) are symmetrically provided at both ends of the hydraulic pipe joint (2); The connection assembly (3) comprises a docking flange (4), a connection bolt (10) is arranged in the middle of the docking flange (4), a fixing nut (11) is arranged at one end of the connection bolt (10), and a limit assembly (12) is arranged on the side of the docking flange (4); The connection assembly (3) further comprises an insert outer tube (5), a sealed inner tube (6) is arranged inside the insert outer tube (5), a sealed insert tube (8) is arranged between the insert outer tube (5) and the sealed inner tube (6), and a docking groove (9) is arranged on the side of the sealed insert tube (8); The limiting assembly (12) comprises a mounting frame (13), a mounting ear plate (14) is arranged on one side of the mounting frame (13), a pulling plate (15) is arranged in the middle of one side of the mounting frame (13), and an L-shaped mounting frame (17) is arranged on the other side of the mounting frame (13), a square limiting strip (16) is arranged in the middle of the pulling plate (15), a limiting slide rod (18) is arranged in the middle of the bottom of the L-shaped mounting frame (17), and a limiting top plate (19) is arranged at one end of the limiting slide rod (18), and a positioning spring (20) is arranged at the bottom of the limiting top plate (19).

2. A wound hydraulic pipe joint according to claim 1, characterized in that: The docking flange (4) is fixedly connected to the outer wall of the hydraulic pipe joint (2), and there are multiple docking flanges (4), which are symmetrically distributed at the connection points between the two ends of the hydraulic pipe joint (2) and the hydraulic pipe (1). The docking flange (4) at one end of the hydraulic pipe (1) is arranged correspondingly to the docking flange (4) on the outer wall of the hydraulic pipe joint (2), and the two docking flanges (4) are connected by connecting bolts (10). One end of the connecting bolt (10) close to the hydraulic pipe joint (2) is connected to a fixing nut (11) by threading. There are four connecting bolts (10), which are evenly distributed in the middle of the docking flanges (4).

3. A wound hydraulic pipe joint according to claim 1, characterized in that: An insert outer tube (5) is fixedly connected in the middle of one end of the hydraulic pipe joint (2), and the insert outer tube (5) is inserted into the interior of the hydraulic pipe joint (2); an end of the insert outer tube (5) away from the hydraulic pipe joint (2) is inserted into the interior of the hydraulic pipe (1); an end of the hydraulic pipe (1) close to the hydraulic pipe joint (2) is provided with a docking groove (9), and the docking groove (9) is located between the hydraulic pipe (1) and the sealing insert tube (8); and the insert outer tube (5) is inserted into the interior of the docking groove (9).

4. A wound hydraulic pipe joint according to claim 3, characterized in that: A sealed inner tube (6) is fixedly connected to the inside of one end of the plug-in outer tube (5) away from the hydraulic pipe joint (2), and the sealed inner tube (6) is arranged in an L-shape inside the plug-in outer tube (5). The sealed inner tube (6) is plugged into the inside of a sealed plug-in tube (8), and the sealed plug-in tube (8) is plugged into the inside of a plug-in groove (7) between the sealed inner tube (6) and the plug-in outer tube (5). There are two sealed inner tubes (6), which are symmetrically distributed at the two ends of the plug-in outer tube (5).

5. The spirally wound hydraulic pipe joint according to claim 1, characterized in that: A mounting ear plate (14) is fixedly connected to one side of the mounting frame (13) close to the docking flange (4), and there are two mounting ear plates (14), which are symmetrically distributed on both sides of the mounting frame (13). The mounting ear plates (14) are connected to the docking flange (4) through bolts. The mounting frame (13) is located on one side of the docking flange (4) close to the middle of the hydraulic pipe joint (2), and the mounting frame (13) is sleeved on the outside of the fixing nut (11).

6. A wound hydraulic pipe joint according to claim 5, characterized in that: One side of the installation frame (13) is in contact with the pulling plate (15), and a square limit strip (16) is fixedly connected to the side of the pulling plate (15) close to the installation frame (13); the end of the square limit strip (16) away from the pulling plate (15) passes through the middle of the installation frame (13) and the connecting bolt (10), and a limit groove (21) is provided on the outer wall of the end of the square limit strip (16) away from the pulling plate (15); an L-shaped installation frame (17) is installed on the side of the installation frame (13) away from the pulling plate (15) by bolts, and the L-shaped installation frame (17) is arranged adjacent to the square limit strip (16), and a limit slide bar (18) is slidably connected to the middle of the bottom of the L-shaped installation frame (17).

7. A wound hydraulic pipe joint according to claim 6, characterized in that: The bottom end of the limiting slide bar (18) passes through the L-shaped mounting frame (17) and is connected to the inside of the limiting groove (21) at the top of the square limiting strip (16); the top of the limiting slide bar (18) is fixedly connected to the limiting top plate (19); the bottom of the limiting top plate (19) is fixedly connected to a positioning spring (20), and the positioning spring (20) is sleeved on the outside of the limiting slide bar (18); one end of the positioning spring (20) away from the limiting top plate (19) is fixedly connected to the bottom inner wall of the L-shaped mounting frame (17).

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