Squeezing type hard pipe joint

Abstract

An extrusion type hard pipe joint comprises a hard pipe connecting main body, a locking cap and an elastic clamping structure, the hard pipe connecting main body is provided with a first main body cavity allowing a mining hard pipe to be connected in, the inner side of the first main body cavity is provided with a hard pipe mounting position, the outer side of the first main body cavity is provided with a locking cap mounting position allowing the locking cap to be connected, and the locking cap is provided with a first locking cap cavity communicated with the first main body cavity. The first lock cap cavity is provided with a main body mounting position connected with the lock cap mounting position and a hard tube matching position allowing a mining hard tube to penetrate through and abut against the hard tube mounting position, the locking cap can move relative to the hard tube connecting main body through matched connection of the main body mounting position and the lock cap mounting position, and the elastic clamping structure is arranged in the first main body cavity and the first lock cap cavity. The locking cap can move relative to the hard pipe connecting body so as to extrude the elastic clamping structure to clamp the mining hard pipe. According to the scheme, the structural design of the hard pipe connecting main body, the locking cap and the elastic clamping structure is adopted, so that the effects of reducing the mounting technical difficulty, simplifying the mounting process and improving the mounting efficiency are achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of hard pipe joints for mining, in particular to an extrusion type hard pipe joint. Background Art

[0002] At present, the commonly used hard pipe joints for mining hard pipes are usually connected to the mining hard pipes by flange connection, crimping connection and clamp connection. However, the hard pipe joints connected by crimping connection in the existing related technology have high installation technology requirements and cumbersome installation process. The vibration and impact during use may cause the crimping connection to loosen, affecting the stability and sealing of the connection. The metal part of the crimping joint may be corroded, affecting the durability of the connection and making maintenance and replacement difficult. Therefore, the utility model proposes a new solution to the above technical problems. Utility Model Content

[0003] The utility model aims to provide an extruded hard pipe joint, which adopts a hard pipe connecting body, a locking cap and an elastic clamping structure, thereby achieving the effects of reducing the difficulty of installation technology, simplifying the installation process and improving the installation efficiency.

[0004] Based on this, the utility model provides an extruded hard pipe joint, comprising:

[0005] A hard pipe connection body, wherein the hard pipe connection body is provided with a main body cavity 1 for the mining hard pipe to be connected, a hard pipe installation position is provided inside the main body cavity 1, and a locking cap installation position is provided outside for the locking cap to be connected;

[0006] The locking cap is provided with a locking cap cavity 1 connected to the main body cavity 1, and the locking cap cavity 1 is provided with a main body installation position connected to the locking cap installation position and a hard pipe matching position for the mining hard pipe to pass through and abut against the hard pipe installation position. The locking cap can move relative to the hard pipe connection main body through the matching connection between the main body installation position and the locking cap installation position;

[0007] An elastic clamping structure is arranged in the main body cavity 1 and the locking cap cavity 1. When the mining hard pipe abuts against the hard pipe installation position, the locking cap can move relative to the hard pipe connection body to squeeze the elastic clamping structure to clamp the mining hard pipe.

[0008] In the extrusion type hard pipe joint as described above, the elastic clamping structure is an axially adjustable locking seal ring, the locking seal ring is sleeved on the mining hard pipe, the locking cap and the hard pipe connecting body are respectively installed on both sides of the locking seal ring, and the locking cap is moved so that one end of the locking seal ring abuts against the main body cavity 1, and the other end abuts against the locking cap cavity 1 for extrusion and clamping.

[0009] In the extruded hard pipe joint as described above, the locking seal ring is provided with a sealing inclined end and a sealing protrusion, the sealing inclined ends are symmetrically arranged on both sides of the locking seal ring, and the two sides of the sealing protrusion are respectively abutted against the locking cap cavity 1 and the outer wall of the hard pipe connecting body.

[0010] In the above-mentioned extruded hard pipe joint, both sides of the sealing protrusion are designed to be flat.

[0011] In the extruded hard pipe joint as described above, the main body cavity 1 is further provided with a sealing installation position for installing the sealing inclined end.

[0012] In the extruded hard pipe joint as described above, the lock cap cavity 1 is further provided with a seal adjustment position for the seal inclined end to be snapped into.

[0013] In the extruded hard pipe joint as described above, the sealing adjustment position is provided with an inclined mounting surface that matches the sealing inclined end.

[0014] In the above-mentioned extruded hard pipe joint, the main body installation position is provided with a boss abutment surface that cooperates with the sealing protrusion.

[0015] In the above-mentioned extruded hard pipe joint, the locking cap installation position and the main body installation position are connected in a trapezoidal thread connection.

[0016] In the above-mentioned extruded hard pipe joint, the hard pipe connecting body and the locking cap are made of hard polyvinyl chloride.

[0017] Implementing the embodiments of the utility model has the following beneficial effects:

[0018] 1. This scheme adopts the structural design of a hard tube connection body, a locking cap and an elastic clamping structure. The hard tube connection body is provided with a main body cavity 1 for the access of the mining hard tube, a hard tube mounting position is provided on the inner side of the main body cavity 1, and a locking cap mounting position for the connection of the locking cap is provided on the outer side. The locking cap is provided with a locking cap cavity 1 connected to the main body cavity 1, and the locking cap cavity 1 is provided with a main body mounting position connected to the locking cap mounting position and a hard tube matching position for the mining hard tube to pass through and abut on the hard tube mounting position. The locking cap can move relative to the hard tube connection body through the matching connection between the main body mounting position and the locking cap mounting position. The elastic clamping structure is provided in the main body cavity 1 and the locking cap cavity 1. When the mining hard tube abuts on the hard tube mounting position, the locking cap can move relative to the hard tube connection body to squeeze the elastic clamping structure to clamp the mining hard tube. The installation is simple and quick, which reduces the difficulty of installation technology, simplifies the installation process and improves the installation efficiency.

[0019] 2. The connection between the rigid pipe connecting body and the locking cap of this scheme adopts a trapezoidal thread connection design. The elastic clamping structure is installed on the mining rigid pipe, and then the locking cap is locked on the connecting body. The elastic clamping structure is squeezed by the rigid pipe connecting body and the locking cap, so that the elastic clamping structure is closer to the mining rigid pipe to achieve the effect of clamping and sealing, eliminating the need for bolt fastening on the structure, realizing a simpler structure, enhancing the connection stability between structures, reducing the difficulty of installation, simplifying the installation process, preventing loosening during use, and facilitating maintenance and replacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0021] Figure 1 It is a schematic diagram of the structure of an embodiment of the utility model;

[0022] Figure 2 It is a structural schematic diagram of a hard pipe connecting the main body;

[0023] Figure 3 It is a schematic diagram of the structure of the locking cap;

[0024] Figure 4 It is a structural schematic diagram of the elastic clamping structure. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] like Figures 1 to 4 As shown, the utility model embodiment provides an extruded hard pipe joint, comprising:

[0027] The hard pipe connecting body 1 is provided with a main body cavity 11 for the access of the mining hard pipe 3, the inner side of the main body cavity 11 is provided with a hard pipe installation position 111, and the outer side is provided with a locking cap installation position 112 for the connection of the locking cap 2; the locking cap 2 is provided with a locking cap cavity 21 connected to the main body cavity 11, the locking cap cavity 21 is provided with a main body installation position 211 connected to the locking cap installation position 112 and a main body installation position 211 for the mining hard pipe 3 to pass through and abut on the hard pipe installation position 111 The hard pipe matching position 212, the locking cap 2 can move relative to the hard pipe connection body 1 through the matching connection between the main body mounting position 211 and the locking cap mounting position 112; the elastic clamping structure 4, the elastic clamping structure 4 is arranged in the main body cavity 11 and the locking cap cavity 21, when the mining hard pipe 3 abuts against the hard pipe mounting position 111, the locking cap 2 moves relative to the hard pipe connection body 1 and squeezes the elastic clamping structure 4 to clamp the mining hard pipe 3.

[0028] Specifically, the elastic clamping structure 4 is an axially adjustable locking sealing ring, which is arranged in the main body cavity 11 and the locking cap cavity 21, and can be sleeved on the mining hard pipe 3. The locking cap 2 and the hard pipe connecting body 1 are respectively installed on both sides of the locking sealing ring. By relatively moving the locking cap 2, one end of the locking sealing ring abuts against the main body cavity 11 to form an inner seal, and the other end abuts against the locking cap cavity 21. The locking sealing ring is squeezed downward by the locking cap 2 to form an outer seal clamping, thereby achieving a sealing and clamping effect on the mining hard pipe 3.

[0029] Furthermore, the locking sealing ring is provided with a sealing inclined end 41 and a sealing protrusion 42. The sealing inclined end 41 is symmetrically arranged on both sides of the locking sealing ring, and can achieve a sealing effect through the compression effect of the sealing inclined end 41 during the locking process and can be in close contact with the inner surfaces of the main body cavity 11 and the locking cap cavity 21, thereby further enhancing the sealing effect and preventing medium leakage; the sealing protrusion 42 is located in the middle of the locking sealing ring, and the two sides are respectively abutted against the locking cap cavity 21 and the outer wall 13 of the hard tube connection body 1, providing additional support force and sealing to improve the stability and reliability of the overall connection device, thereby forming a more stable sealing structure during the locking process.

[0030] Furthermore, the sealing protrusion 42 is designed as a two-sided plane. On the one hand, this structure can form a larger contact area during the locking process, thereby improving the contact stability and enhancing the sealing effect, so that the sealing protrusion 42 can more stably abut against the lock cap cavity 21 and the outer wall 13 of the hard tube connecting body 1, providing a more uniform supporting force, and further enhancing the sealing effect and connection stability; on the other hand, it helps to improve the wear resistance and service life of the locking sealing ring, and adapt to the frequent disassembly and use requirements under different working conditions.

[0031] Furthermore, the main body cavity 11 is also provided with a sealing installation position 115 for installing the sealing inclined end 41. Through the sealing installation position 115, the sealing inclined end 41 can evenly distribute pressure during the locking process, reduce local stress concentration, improve the sealing performance and service life of the entire device, and the sealing inclined end 41 can be quickly and accurately installed in place, thereby improving work efficiency.

[0032] Furthermore, the locking cap cavity 21 is also provided with a sealing adjustment position 214 for the sealing inclined end 41 to be inserted into. The sealing adjustment position 214 allows the sealing inclined end 41 to be in close contact with the inner wall of the locking cap cavity 21, thereby enhancing the sealing effect and further preventing medium leakage. The sealing inclined end 41 can better adapt to the movement of the locking cap 2 during the locking process, making the locking process smoother and ensuring that the locking sealing ring clamps the mining hard pipe 3 more reliably. At the same time, such a design can also simplify the installation process, so that the sealing inclined end 41 can be quickly and accurately inserted into place, thereby improving installation efficiency and sealing performance.

[0033] Furthermore, the sealing adjustment position 214 is provided with an inclined mounting surface 2141 which cooperates with the sealing inclined end 41. Such a design, on the one hand, enables the sealing inclined end 41 to be gradually subjected to uniform pressure during the locking process, thereby ensuring that a good sealing effect can be formed during locking; on the other hand, the design of the inclined mounting surface 2141 can also reduce the friction and wear of the sealing inclined end 41 during the locking process, thereby extending the service life of the device and improving its reliability and sealing performance.

[0034] Furthermore, the main body mounting position 211 is provided with a boss abutment surface 2111 that cooperates with the sealing protrusion 42. Such a design enables the sealing protrusion 42 to be subjected to uniform pressure distribution during the locking process, ensuring that a reliable seal can be formed during locking, while reducing friction and wear during the locking process, extending the service life of the locking sealing ring and the entire hard pipe joint, enhancing the reliability and sealing performance of the hard pipe joint, and effectively preventing the risk of leakage when conveying the medium.

[0035] Furthermore, the connection method adopted by the lock cap mounting position 112 and the main body mounting position 211 is a trapezoidal thread connection. The trapezoidal thread connection can, firstly, provide precise locking force during the installation process, so that the locking sealing ring can reliably clamp the mining hard pipe 3; secondly, the trapezoidal thread connection method simplifies the installation and disassembly process of the hard pipe joint, and improves the maintainability and service life of the device; thirdly, the design of the trapezoidal thread connection can effectively prevent loosening due to vibration or external force during use, and ensure the stability and safety of the connection; fourthly, the trapezoidal thread has a larger cross-sectional area, higher strength and rigidity, can withstand larger axial loads, and can be better used in the mining field.

[0036] Furthermore, the rigid tube connection body 1 and the locking cap 2 are made of rigid polyvinyl chloride. On the one hand, the rigid polyvinyl chloride material has good mechanical strength and wear resistance, ensuring that the rigid tube connection body 1 and the locking cap 2 can withstand greater external forces and wear during use; on the other hand, the rigid polyvinyl chloride material has excellent corrosion resistance and can be used for a long time in a mining environment without being easily corroded by chemical substances; at the same time, the rigid polyvinyl chloride material used in the present invention has antistatic properties with the addition of conductive fillers or static dissipators, which can eliminate static charges accumulated during contact or friction, increase safety of use, especially in the mining field, ensure the safety of using rigid tube joints underground, and reduce risks in the process of conveying materials; the rigid tube connection body 1 is also provided with a rigid tube body tail end 12, which facilitates the connection of the rigid tube joint to pipe connectors such as two-way elbows, three-way elbows and ball valves.

[0037] It should be understood that the terms "first", "second", etc. are used in the present invention to describe various information, but such information should not be limited to these terms, and these terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of the present invention, the "first" information may also be referred to as the "second" information, and similarly, the "second" information may also be referred to as the "first" information. In addition, the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0038] The above is a preferred embodiment of the present invention. It should be pointed out that a person skilled in the art can make several improvements and modifications without departing from the principle of the present invention. These improvements and modifications are also considered to be within the protection scope of the present invention.

Claims

1. An extruded hard pipe joint, characterized in that: include: A hard pipe connecting body (1), the hard pipe connecting body (1) is provided with a main body cavity (11) for connecting a mining hard pipe (3), the main body cavity (11) is provided with a hard pipe mounting position (111) on the inner side, and a locking cap mounting position (112) on the outer side for connecting a locking cap (2); The locking cap (2) is provided with a locking cap cavity (21) connected to the main body cavity (11); the locking cap cavity (21) is provided with a main body mounting position (211) connected to the locking cap mounting position (112) and a hard pipe matching position (212) for the mining hard pipe (3) to pass through and abut against the hard pipe mounting position (111); the locking cap (2) can move relative to the hard pipe connection main body (1) through the matching connection between the main body mounting position (211) and the locking cap mounting position (112); An elastic clamping structure (4) is arranged in the main body cavity 1 (11) and the locking cap cavity 1 (21); when the mining hard pipe (3) abuts against the hard pipe installation position (111), the locking cap (2) moves relative to the hard pipe connection body (1) and squeezes the elastic clamping structure (4) to clamp the mining hard pipe (3).

2. An extruded hard pipe joint according to claim 1, characterized in that: The elastic clamping structure (4) is an axially adjustable locking seal ring, which is sleeved on the mining hard pipe (3), and the locking cap (2) and the hard pipe connecting body (1) are respectively installed on both sides of the locking seal ring. By moving the locking cap (2), one end of the locking seal ring abuts against the main body cavity (11) and the other end abuts against the locking cap cavity (21) to be squeezed and clamped.

3. An extruded hard pipe joint according to claim 2, characterized in that: The locking seal ring is provided with a sealing inclined end (41) and a sealing protrusion (42), wherein the sealing inclined end (41) is symmetrically arranged on both sides of the locking seal ring, and the two sides of the sealing protrusion (42) are respectively abutted against the locking cap cavity 1 (21) and the outer wall (13) of the hard tube connecting body (1).

4. The extruded hard pipe joint according to claim 3, characterized in that: Both sides of the sealing protrusion (42) are designed to be flat.

5. The extruded hard pipe joint according to claim 4, characterized in that: The main body cavity 1 (11) is also provided with a sealing installation position (115) for installing the sealing inclined end (41).

6. The extruded hard pipe joint according to claim 5, characterized in that: The lock cap cavity 1 (21) is also provided with a sealing adjustment position (214) for the sealing inclined end (41) to be snapped into.

7. An extruded hard pipe joint according to claim 6, characterized in that: The sealing adjustment position (214) is provided with an inclined mounting surface (2141) that matches the sealing inclined end (41).

8. The extruded hard pipe joint according to claim 7, characterized in that: The main body installation position (211) is provided with a boss abutment surface (2111) that cooperates with the sealing convex block (42).

9. The extruded hard pipe joint according to claim 1, characterized in that: The locking cap installation position (112) and the main body installation position (211) are connected in a trapezoidal thread connection.

10. The extruded hard pipe joint according to claim 1, characterized in that: The hard pipe connecting body (1) and the locking cap (2) are made of hard polyvinyl chloride.

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