High-pressure heavy ferrule type pipe joint

Abstract

The utility model relates to the technical field of pipe joints, and discloses a high-pressure heavy ferrule type pipe joint, which is characterized in that connecting shafts on two sides are connected to two sides of the outer wall of an inner pipe, a pipe joint is connected to the outer walls of the connecting shafts on two sides, ferrule nuts are screwed at two ends of the pipe joint, pressure grooves are arranged on two sides of the outer wall of the inner pipe, and the pressure grooves are connected with the pipe joint. According to the high-pressure heavy ferrule type pipe joint, when the pipe joint is connected with an external guide pipe, the pipe joints on the two sides are allowed to move within a certain range so as to adapt to the installation requirements of different guide pipes, when the connection position needs to be adjusted, the pipe joint can slide in the axial direction of the connecting shaft, and due to the fact that the connecting shaft is fixed to the inner pipe, the pipe joint is not prone to falling off. And the pipe joint is movably connected outside the connecting shaft in a sleeving manner, so that the position of the pipe joint can be adjusted relative to the inner pipe, and after adjustment is completed, the ferrule nut is screwed to firmly clamp the guide pipe to form sealing, so that the guide pipes at different intervals can be conveniently connected.

Description

TECHNICAL FIELD

[0001] The utility model belongs to pipe joint technical field, specifically is high pressure heavy type snap -on pipe joint. BACKGROUND

[0002] In the traditional high pressure pipeline system, the fixed pipe joint often cannot adapt to the demand of different installation spacing due to its structure limitation, especially in heavy equipment or complex pipeline layout occasion, when the two pipeline ports to be connected are in a fixed state and need to adjust the docking distance, the conventional pipe joint must be realized by increasing or decreasing the pipeline length or using the transition joint, which not only increases the installation complexity, but also may introduce additional leakage risk under high pressure working condition, therefore, in view of the present situation, the present needs to be improved. SUMMARY

[0003] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides high pressure heavy type snap -on pipe joint, effectively solve the problem that in the traditional high pressure pipeline system, the fixed pipe joint often cannot adapt to the demand of different installation spacing due to its structure limitation, especially in heavy equipment or complex pipeline layout occasion, when the two pipeline ports to be connected are in a fixed state and need to adjust the docking distance, the conventional pipe joint must be realized by increasing or decreasing the pipeline length or using the transition joint, which not only increases the installation complexity, but also may introduce additional leakage risk under high pressure working condition.

[0004] In order to achieve the above object, the utility model provides the following technical scheme: high pressure heavy type snap -on pipe joint, including pipe joint, inner tube, catheter, the inner tube is located in the inside of pipe joint, the outer wall of inner tube is provided with adjusting assembly, the inside of pipe joint is provided with fixed assembly;

[0005] Among them, the adjusting assembly includes connecting shaft, both sides connecting shaft are connected in the both sides of the outer wall of inner tube, the outer wall of both sides connecting shaft is connected in the both ends of pipe joint, the both ends of pipe joint are screwed with the snap nut, the both sides of the outer wall of inner tube are provided with pressure groove, both sides pressure groove are connected with O ring in the inside.

[0006] Preferably, the both sides of the inner wall of pipe joint are connected with buffer pad, and the both sides of the buffer pad are flexible.

[0007] Preferably, the outer opening in the pressure groove is smaller than the diameter of the O ring.

[0008] Preferably, both sides connecting shaft are oppositely arranged, and one end of both sides connecting shaft is connected with a limiting block.

[0009] Preferably, the fixing assembly comprises front sleeves, both of which are located inside the sleeve nuts, and rear sleeves are arranged inside both of the sleeve nuts.

[0010] Preferably, sealing rings are arranged inside both of the sleeve nuts, and both of the sealing rings are trapezoidal.

[0011] Preferably, positioning rings are connected to both sides of the outer wall of the pipe joint, and both of the positioning rings are located on one side of the threads on both sides of the outer wall of the pipe joint.

[0012] Compared with the prior art, the utility model has the beneficial effects that:

[0013] 1. When the pipe joint is connected with the external conduit, the pipe joints on both sides are allowed to move within a certain range to adapt to the installation requirements of different conduits, and when the connection position needs to be adjusted, the pipe joint can be axially slid along the connection shaft, because the connection shaft is fixed on the inner pipe and the pipe joint is movably sleeved on the outside of the connection shaft, so that the pipe joint can be adjusted in position relative to the inner pipe, and after the adjustment is completed, the sleeve nut is tightened to firmly clamp the conduit and form a seal, thereby facilitating the connection of conduits with different spacings;

[0014] 2. The O-ring is installed in the pressure groove, and when the O-ring is pressed by the liquid flow, it moves inward, moves to the connection between the inner pipe and the pipe joint, and tightly abuts against the connection, thereby enhancing the sealing between the pipe joint and the inner pipe, and the overall structure remains stable and sealed in a high-pressure environment and is suitable for heavy fluid conveying systems.

[0015] 3. When the sleeve nut is tightened, the front sleeve and the rear sleeve inside the sleeve nut move towards the center axis at the same time, the front sleeve first contacts the outer wall of the conduit and generates an initial clamping force, and as the nut continues to be tightened, the rear sleeve further advances and forms a cooperative extrusion effect with the front sleeve, so that the conduit is plastically deformed and tightly attached to the inner wall of the pipe joint, and the sealing state is completed. BRIEF DESCRIPTION OF DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the utility model, and constitute a part of the specification, and are used together with the embodiments of the utility model to explain the utility model, and do not constitute a limitation on the utility model.

[0017] In the drawings:

[0018] Fig. 1 It is a structural schematic view of the utility model;

[0019] Fig. 2 It is an O-ring structural schematic view of the utility model;

[0020] Fig. 3 It is an inner pipe structural schematic view of the utility model.

[0021] In the figure: 100, pipe joint; 200, inner tube; 201, connecting shaft; 202, sleeve nut; 203, catheter; 204, pressure groove; 205, O-ring; 206, buffer pad; 300, front sleeve; 301, rear sleeve; 302, sealing ring; 303, positioning ring. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0023] Please refer to Figs. 1-3 , high-pressure heavy sleeve type pipe joint, including pipe joint 100, inner tube 200, catheter 203, inner tube 200 is located in the inside of pipe joint 100, the outer wall of inner tube 200 is provided with adjusting assembly, the inside of pipe joint 100 is provided with fixed assembly.

[0024] Among them, adjusting assembly includes connecting shaft 201, both sides connecting shaft 201 are fixedly connected on both sides of the outer wall of inner tube 200, pipe joint 100 is movably connected on the outer wall of both sides connecting shaft 201, both ends of pipe joint 100 are screwed with sleeve nut 202, both sides of the outer wall of inner tube 200 are provided with pressure groove 204, both sides pressure groove 204 are movably connected with O-ring 205 inside, when pipe joint 100 is connected with external catheter 203, allows both sides pipe joint 100 to move within a certain range, to adapt to the installation requirement of different catheter 203, when needing to adjust the connection position, can slide pipe joint 100 along the axial direction of connecting shaft 201, because connecting shaft 201 is fixed on inner tube 200, and pipe joint 100 is movably sleeved on the outer wall of connecting shaft 201, therefore, pipe joint 100 can be positionally adjusted relative to inner tube 200, after adjusting, sleeve nut 202 is tightened to firmly hold catheter 203, forms sealing, thereby facilitating the connection of catheter 203 with different spacing, wherein O-ring 205 is installed in pressure groove 204, O-ring 205 moves inward when being pressed when liquid flows, so that it moves inward to the connection between inner tube 200 and pipe joint 100, makes it tightly abut, enhances the sealing between pipe joint 100 and inner tube 200, the overall structure keeps stable and sealed under high-pressure environment, and is suitable for heavy fluid conveying system.

[0025] Both sides of the inner wall of pipe joint 100 are fixedly connected with buffer pad 206, both sides buffer pad 206 are stretchy, so that both sides catheter 203 can protect the connecting section of catheter 203 when entering pipe joint 100.

[0026] The outer opening in the pressure groove 204 is smaller than the diameter of the O-ring 205, so that the O-ring 205 can be prevented from being separated from the inside of the pressure groove 204.

[0027] The two side connecting shafts 201 are oppositely arranged, and one end of each of the two side connecting shafts 201 is fixedly connected with a limiting block, so that the pipe joint 100 can be prevented from being separated from the inner pipe 200.

[0028] The fixing assembly comprises front clamping sleeves 300, and the two side clamping sleeves 300 are located inside the clamping sleeve nuts 202. The inside of each of the two clamping sleeve nuts 202 is provided with a rear clamping sleeve 301. When the clamping sleeve nut 202 is screwed, the front clamping sleeve 300 and the rear clamping sleeve 301 inside the clamping sleeve nut 202 move towards the center axis at the same time. The front clamping sleeve 300 first contacts the outer wall of the guide pipe 203 and generates an initial clamping force. With the continuous screwing of the nut, the rear clamping sleeve 301 further advances and forms a cooperative extrusion effect with the front clamping sleeve 300, so that the guide pipe 203 is plastically deformed and tightly attached to the inner wall of the pipe joint 100, that is, the sealing state can be completed.

[0029] The inside of each of the two clamping sleeve nuts 202 is provided with a sealing ring 302, and the two sealing rings 302 are trapezoidal, so that the two sealing rings 302 can be tightly attached to the front clamping sleeve 300 and the rear clamping sleeve 301, and the sealing property between the guide pipe 203 and the pipe joint 100 is increased.

[0030] The outer wall of the pipe joint 100 is fixedly connected with positioning rings 303 on both sides, and the two positioning rings 303 are located on one side of the threads on the outer wall of the pipe joint 100, so that the staff can complete the fixed installation work of the guide pipe 203 by rotating the clamping sleeve nut 202 to one side of the positioning ring 303.

[0031] Working principle: when the pipe joint 100 is connected with the external pipe 203, the pipe joint 100 on both sides is allowed to move within a certain range to adapt to the installation requirements of different pipes 203, when the connection position needs to be adjusted, the pipe joint 100 can be axially slid along the connection shaft 201, since the connection shaft 201 is fixed on the inner pipe 200, and the pipe joint 100 is movably sleeved outside the connection shaft 201, therefore, the pipe joint 100 can be adjusted in position relative to the inner pipe 200, after the adjustment is completed, the clamp nut 202 is tightened to firmly clamp the pipe 203, forming a seal, thereby facilitating the connection of pipes 203 with different spacings, wherein the O-ring 205 is installed in the pressure groove 204, the O-ring 205 moves inward when pressed during liquid flow, so that it moves inward to the connection between the inner pipe 200 and the pipe joint 100, and tightly abuts the connection, enhancing the sealing between the pipe joint 100 and the inner pipe 200, the overall structure remains stable and sealed in a high-pressure environment, and is suitable for heavy fluid conveying systems, when the clamp nut 202 is tightened, the front clamp sleeve 300 and the rear clamp sleeve 301 in the clamp nut 202 move towards the center axis at the same time, the front clamp sleeve 300 first contacts the outer wall of the pipe 203 and generates an initial clamping force, as the nut continues to be tightened, the rear clamp sleeve 301 further advances and forms a cooperative extrusion effect with the front clamp sleeve 300, so that the pipe 203 is plastically deformed and tightly attached to the inner wall of the pipe joint 100, that is, the sealing state is completed.

[0032] It should be noted that, in the present text, relational terms such as first and second and the like can only be used to distinguish one entity or operation from another entity or operation, without necessarily requiring or implying any such actual relationship or order between these entities or operations. Moreover, the terms "comprises", "comprising", or any other variant thereof are intended to cover non-exclusive inclusions, so that a process, method, article, or apparatus that includes a series of elements not only includes those elements, but also includes other elements not explicitly listed, or inherent to such a process, method, article, or apparatus.

[0033] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A high pressure heavy duty ferrule type pipe joint comprising a pipe joint (100), an inner pipe (200), a conduit (203), characterized in that: The inner tube (200) is located inside the pipe joint (100), the outer wall of the inner tube (200) is provided with an adjusting assembly, and the inside of the pipe joint (100) is provided with a fixing assembly; The adjusting assembly comprises connecting shafts (201), the connecting shafts (201) are connected to the outer walls of the inner tube (200) on both sides, the pipe joint (100) is connected to the outer walls of the connecting shafts (201) on both sides, the pipe joint (100) is provided with clamping sleeve nuts (202) at both ends, the outer walls of the inner tube (200) are provided with pressure grooves (204) on both sides, and the pressure grooves (204) are connected with O-rings (205) inside.

2. The high pressure heavy swage pipe coupling of claim 1, wherein: The inner walls of the pipe joint (100) are connected with buffer pads (206) on both sides, and the buffer pads (206) are flexible.

3. The high pressure heavy swage pipe coupling of claim 1, wherein: The outer openings in the pressure grooves (204) are smaller than the diameters of the O-rings (205).

4. The high pressure heavy swage pipe coupling of claim 1, wherein: The connecting shafts (201) are oppositely arranged, and the connecting shafts (201) are connected with limiting blocks at one end.

5. The high pressure heavy duty ferrule style pipe coupling of claim 1 wherein: The fixing assembly comprises front clamping sleeves (300), the front clamping sleeves (300) are located inside the clamping sleeve nuts (202) on both sides, and the clamping sleeve nuts (202) are provided with rear clamping sleeves (301) inside on both sides.

6. The high pressure heavy swage pipe coupling of claim 1, wherein: The clamping sleeve nuts (202) are provided with sealing rings (302) inside on both sides, and the sealing rings (302) are trapezoidal.

7. The high pressure heavy duty ferrule style pipe coupling of claim 1 wherein: The outer walls of the pipe joint (100) are connected with positioning rings (303) on both sides, and the positioning rings (303) are located on one side of the threads on the outer walls of the pipe joint (100) on both sides.

Images