A general-purpose high-pressure resistant tee joint valve

Abstract

This utility model relates to the field of valve connection technology and discloses a universal high-pressure resistant three-way valve connector, including an EPDM rubber tube. A PTFE lining is fixedly installed on the inner wall of the EPDM rubber tube, and a high-strength fiber curtain is fixedly installed between the PTFE lining and the EPDM rubber tube. Both ends of the EPDM rubber tube are fixedly provided with flanges, and a flange is fixedly connected to one side of each flange. A spiral steel wire providing support for the interior of the EPDM rubber tube is fixedly installed on one side of the flange. The PTFE lining improves corrosion resistance and prevents corrosion of the inner wall of the EPDM rubber tube. The high-strength fiber curtain improves the pressure resistance of the EPDM rubber tube, making it less prone to bulging or bursting when the internal pressure is too high. Furthermore, the EPDM rubber tube is made of EPDM rubber material, which can withstand high temperatures.

Description

Technical Field

[0001] This utility model relates to the field of valve connection technology, specifically a universal high-pressure resistant three-way valve connector. Background Technology

[0002] A three-way valve is a fluid control valve with three channels. By changing the position of the valve core, it can split, merge, or switch the flow direction of the pipeline. Its core function is to achieve medium distribution (such as hot and cold water mixing in heating systems), flow direction switching (such as feed switching in chemical reactors), or system isolation (such as bypass circulation during equipment maintenance) without increasing the number of connection points. It features simplified pipeline layout, saving installation space, and improved system adjustment flexibility.

[0003] The "General-Purpose High-Pressure Resistant Three-Way Valve Connector" disclosed in application number "202123143869.6" includes: a rubber body with outward-facing portions at both ends; a flange mounted on the left and right sides of the rubber body, located inside the outward-facing portions; a reinforcing disc welded to the side of the flange, with an auxiliary disc welded to the outside of the reinforcing disc; a positioning block welded to the outside of the flange, connected to the auxiliary disc by anti-detachment screws; and a sunshade sleeve fitted over the outside of the rubber body. The combination of the positioning block and the anti-detachment screws effectively prevents the outward-facing portions from being pulled off, and the process is simple, facilitating later maintenance. Furthermore, the sunshade sleeve effectively prevents the rubber body from being exposed to direct sunlight.

[0004] However, the above method still has the following drawbacks: the rubber body can achieve the connection of the three-way valve, but the pressure resistance of rubber is limited. Under high pressure conditions, it is prone to bulging or bursting. It also has poor weather resistance and is prone to aging and hardening when exposed to high temperature working environment for a long time. The rubber body does not have internal support, which can easily lead to deformation of the rubber body. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a universal high-pressure resistant three-way valve connector, which has the advantages of good pressure resistance and weather resistance, and solves the problems mentioned in the background technology.

[0006] This utility model provides the following technical solution: a universal high-pressure resistant three-way valve connector, comprising an EPDM rubber tube, wherein a PTFE lining is fixedly provided on the inner wall of the EPDM rubber tube, and a high-strength fiber curtain is fixedly provided between the PTFE lining and the EPDM rubber tube. Both ends of the EPDM rubber tube are fixedly provided with flanges, and a flange is fixedly connected to one side of the flange. A spiral steel wire is fixedly provided on one side of the flange to provide support for the interior of the EPDM rubber tube. A galvanized steel pipe is welded to the other side of the flange. A support component is provided on the surface of the galvanized steel pipe, and an outer protective component is provided on the top of the EPDM rubber tube to protect its surface.

[0007] As a preferred technical solution of this utility model, the surface of the EPDM rubber tube is fitted with two clamps, and the surface of the clamps is provided with circular grooves that are inserted and connected to the EPDM rubber tube. The clamps and the flange are fixedly connected to the flange by bolts, and the flange is located between the clamps and the flange.

[0008] As a preferred technical solution of this utility model, the support component includes a pipe clamp and a tie rod. The pipe clamp is engaged with the surface of the galvanized steel pipe. A rubber pad is adhered to the surface of the pipe clamp. A deformation groove is formed on the surface of the pipe clamp. Ear plates are fixed on both sides of the deformation groove. The tie rod is inserted and connected to the ear plates. A bolt head is fixed at one end of the tie rod, and a nut is threaded to the other end of the tie rod.

[0009] As a preferred embodiment of this utility model, a vertical rod is fixedly provided in the middle of the pipe clamp, and a mounting plate is fixedly provided at one end of the vertical rod. The surface of the mounting plate is provided with mounting holes.

[0010] As a preferred embodiment of this utility model, the spiral steel wire is located inside the EPDM rubber tube, and a support ring is fixedly provided at one end of the spiral steel wire, with a bevel plug provided on one side of the support ring.

[0011] As a preferred embodiment of this utility model, the outer protective component includes a reinforcing cloth, and protective covers are fixedly provided on both sides of the reinforcing cloth. Both the reinforcing cloth and the protective covers are located on the top of the EPDM rubber tube.

[0012] As a preferred technical solution of this utility model, two locking posts are fixedly provided on the inner wall of one side of the protective cover, and two locking slots are opened on the top of the flange, and the locking posts are engaged with the inside of the locking slots.

[0013] As a preferred technical solution of this utility model, one end of the galvanized steel pipe is fixedly provided with flange two, and flange one and EPDM rubber pipe are both coaxial with flange two.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. The PTFE lining enhances corrosion resistance and prevents corrosion of the inner wall of the EPDM rubber hose. The high-strength fiber cord improves the pressure resistance of the EPDM rubber hose, making it less prone to bulging or bursting when the internal pressure is too high. Made of EPDM rubber, it can withstand high temperatures and is not prone to aging or hardening under high-temperature conditions, exhibiting good weather resistance. The spiral steel wire inserted into the hose provides internal support, preventing deformation and ensuring the transport capacity of the medium under both positive and negative pressure conditions.

[0016] 2. The EPDM rubber hose connects to the three-way valve. The elasticity of the EPDM rubber hose effectively absorbs pipeline vibration and impact, reducing noise during fluid transportation. The external protective component provides a sunshade effect, reducing ultraviolet radiation and extending the service life of the EPDM rubber hose. It also facilitates installation and disassembly. The support component supports the galvanized steel pipe, which in turn supports both ends of the EPDM rubber hose, ensuring stability, reliability, and preventing it from falling off. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0019] Figure 3 This is a schematic diagram of the exploded structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the support component of this utility model;

[0021] Figure 5 This is a schematic diagram of the structure of the external protective component of this utility model;

[0022] Figure 6 This is a cross-sectional structural diagram of the EPDM rubber tube of this utility model.

[0023] In the diagram: 1. EPDM rubber hose; 2. High-strength fiber curtain; 3. PTFE lining; 4. Flanged edge; 5. Clamping plate; 6. Flange 1; 7. Galvanized steel pipe; 8. Flange 2; 9. Support assembly; 901. Pipe clamp; 902. Ear plate; 903. Tie rod; 904. Upright pole; 905. Mounting plate; 10. Spiral steel wire; 11. Support ring; 12. Bevel plug; 13. Outer protective assembly; 1301. Reinforcing fabric; 1302. Protective cover; 1303. Clamping post. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figures 1-6 A general-purpose high-pressure resistant three-way valve fitting includes an EPDM rubber hose 1. A PTFE lining 3 is fixedly installed on the inner wall of the EPDM rubber hose 1. A high-strength fiber cloth 2 is fixed between the PTFE lining 3 and the EPDM rubber hose 1. The PTFE lining 3 enhances corrosion resistance and prevents corrosion of the inner wall of the EPDM rubber hose 1. The high-strength fiber cloth 2 improves the pressure resistance of the EPDM rubber hose 1. When the internal pressure of the pipeline is too high, the EPDM rubber hose 1 is less likely to bulge or burst. The EPDM rubber hose 1 is made of EPDM rubber material, which can withstand high temperature and is not easy to age and harden under high temperature environment. Both ends of the EPDM rubber hose 1 are fixedly provided with flanges 4. One side of the flange 4 is fixedly connected to a flange 6. One side of the flange 6 is fixedly provided with a spiral steel wire 10 that provides support for the inside of the EPDM rubber hose 1. The other side of the flange 6 is welded with a galvanized steel pipe 7. The surface of the galvanized steel pipe 7 is provided with a support component 9. The top of the EPDM rubber hose 1 is provided with an outer protective component 13 that provides protection for its surface.

[0026] In this embodiment, preferably, the support component 9 includes a pipe clamp 901 and a tie rod 903. The pipe clamp 901 is engaged with the surface of the galvanized steel pipe 7. A rubber pad is adhered to the surface of the pipe clamp 901. A deformation groove is formed on the surface of the pipe clamp 901. Ear plates 902 are fixed on both sides of the deformation groove. The tie rod 903 is inserted and connected to the ear plates 902. A bolt head is fixed at one end of the tie rod 903, and a nut is connected to the other end of the tie rod 903 by a threaded connection. A vertical rod 904 is fixed in the middle of the pipe clamp 901. One end is fixed with an installation plate 905, and the surface of the installation plate 905 is provided with installation holes. The galvanized steel pipe 7 can be supported by the upright 904 and the pipe clamp 901. The galvanized steel pipe 7 can support both ends of the EPDM rubber hose 1. The rubber pad can provide protection between the pipe clamp 901 and the galvanized steel pipe 7. The clamping force of the pipe clamp 901 can be adjusted by turning the nut and adjusting the distance between the two ear plates 902. The galvanized steel pipe 7 can be hoisted by adjusting the upright 904 to the top of the galvanized steel pipe 7.

[0027] In this embodiment, preferably, the outer protective component 13 includes a reinforcing cloth 1301, and protective covers 1302 are fixedly provided on both sides of the reinforcing cloth 1301. The reinforcing cloth 1301 and the protective covers 1302 are both located on the top of the EPDM rubber tube 1. Two locking posts 1303 are fixedly provided on the inner wall of one side of the protective cover 1302. Two locking slots are opened on the top of the flange 6. The locking posts 1303 are engaged with the inside of the locking slots. The rigid connection between the two protective covers 1302 is avoided by the reinforcing cloth 1301. The reinforcing cloth 1301 and the protective covers 1302 can play a sunshade role, reduce ultraviolet radiation, and improve the service life of the EPDM rubber tube 1. By engaging the locking posts 1303 with the locking slots of the flange 6, it is convenient to install and remove the protective cover 1302.

[0028] In this embodiment, preferably, two clamping plates 5 are fitted on the surface of the EPDM rubber tube 1. The surface of the clamping plates 5 is provided with a circular groove that is inserted and connected to the EPDM rubber tube 1. The clamping plates 5 and the flange 4 are fixedly connected to the flange 6 by bolts. The flange 4 is located between the clamping plates 5 and the flange 6. The clamping plates 5 can hold the flange 4. The flange 4 is not easily deformed and can maintain the flatness of the flange 4, thereby maintaining the sealing ability of the flange 4.

[0029] In this embodiment, preferably, the spiral steel wire 10 is located inside the EPDM rubber tube 1. A support ring 11 is fixedly provided at one end of the spiral steel wire 10. A bevel plug 12 is provided on one side of the support ring 11. A flange 8 is fixedly provided at one end of the galvanized steel pipe 7. The flange 6 and the EPDM rubber tube 1 are coaxial with the flange 8. The bevel plug 12 can guide the support ring 11, making it easy to insert it into the EPDM rubber tube 1. The support ring 11 can reinforce one end of the spiral steel wire 10, and the spiral steel wire 10 can support the interior of the EPDM rubber tube 1.

[0030] In use, first, the two clamping plates 5 are fitted onto the EPDM rubber tube 1 through the flange 4. Then, the bolts are passed through the flange 6, the flange 4 and the clamping plate 5 in sequence. The clamping plate 5 and the flange 6 can clamp the flange 4, which can connect the galvanized steel pipe 7 and the EPDM rubber tube 1. After the flange 4 is clamped, it can ensure flatness and play a sealing role at the connection. The spiral steel wire 10 on one side of the flange 6 can enter the EPDM rubber tube 1.

[0031] After the galvanized steel pipe 7 is connected, it can be connected to the three-way valve and pipeline through flange 2 8. After the connection is completed, the pipe clamp 901 of the support component 9 is put on the galvanized steel pipe 7, and the clamping force of the pipe clamp 901 is adjusted by the ear plate 902 and the tie rod 903. Then, the upright 904 is fixed by the mounting plate 905. The upright 904 can support the galvanized steel pipe 7 through the pipe clamp 901. The galvanized steel pipe 7 can provide support for both ends of the EPDM rubber hose 1, which is stable, reliable and not easy to fall off. By adjusting the upright 904 to the top of the galvanized steel pipe 7, the galvanized steel pipe 7 can be fixed by hoisting.

[0032] When used outdoors, engage the locking post 1303 with the locking groove of flange 6 to install the protective cover 1302. The reinforcing cloth 1301 avoids the rigid connection between the two protective covers 1302. The reinforcing cloth 1301 and the protective cover 1302 can provide a sunshade effect, reduce ultraviolet radiation, and improve the service life of EPDM rubber hose 1.

[0033] When transporting media, the elasticity of the EPDM rubber hose 1 can effectively absorb pipeline vibration and impact, reducing noise during fluid transport. The PTFE lining 3 can improve corrosion resistance and prevent corrosion of the inner wall of the EPDM rubber hose 1. The high-strength fiber cord 2 can improve the pressure resistance of the EPDM rubber hose 1. When the internal pressure of the pipeline is too high, the EPDM rubber hose 1 is not prone to bulging or bursting. Moreover, the EPDM rubber hose 1 is made of EPDM rubber material, which can withstand high temperatures and is not prone to aging and hardening under high temperature environments. It has good weather resistance. The spiral steel wire 10 can provide internal support for the EPDM rubber hose 1, making it less prone to deformation. It can ensure the transport capacity of the medium under both positive and negative pressure environments.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A universal high-pressure resistant three-way valve connector, comprising an EPDM rubber hose (1), characterized in that: The inner wall of the EPDM rubber tube (1) is fixedly provided with a PTFE lining (3), and a high-strength fiber curtain (2) is fixed between the PTFE lining (3) and the EPDM rubber tube (1). Both ends of the EPDM rubber tube (1) are fixedly provided with flanges (4). A flange (6) is fixedly connected to one side of the flange (4). A spiral steel wire (10) is fixedly provided on one side of the flange (6) to provide support for the inside of the EPDM rubber tube (1). A galvanized steel pipe (7) is welded to the other side of the flange (6). A support component (9) is provided on the surface of the galvanized steel pipe (7). An outer protective component (13) is provided on the top of the EPDM rubber tube (1) to protect its surface.

2. The universal high-pressure resistant three-way valve connector according to claim 1, characterized in that: Two clamps (5) are fitted on the surface of the EPDM rubber tube (1). The surface of the clamps (5) has a circular groove that is inserted and connected to the EPDM rubber tube (1). The clamps (5) and the flange (4) are fixedly connected to the flange (6) by bolts. The flange (4) is located between the clamps (5) and the flange (6).

3. The universal high-pressure resistant three-way valve connector according to claim 1, characterized in that: The support assembly (9) includes a pipe clamp (901) and a tie rod (903). The pipe clamp (901) is engaged with the surface of the galvanized steel pipe (7). A rubber pad is adhered to the surface of the pipe clamp (901). A deformation groove is formed on the surface of the pipe clamp (901). Ear plates (902) are fixed on both sides of the deformation groove. The tie rod (903) is inserted and connected to the ear plates (902). A bolt head is fixed at one end of the tie rod (903), and a nut is threaded to the other end of the tie rod (903).

4. The universal high-pressure resistant three-way valve connector according to claim 3, characterized in that: A vertical rod (904) is fixedly provided in the middle of the pipe clamp (901), and a mounting plate (905) is fixedly provided at one end of the vertical rod (904). The mounting plate (905) has mounting holes on its surface.

5. The universal high-pressure resistant three-way valve connector according to claim 1, characterized in that: The spiral steel wire (10) is located inside the EPDM rubber tube (1). One end of the spiral steel wire (10) is fixedly provided with a support ring (11), and a bevel plug (12) is provided on one side of the support ring (11).

6. The universal high-pressure resistant three-way valve connector according to claim 1, characterized in that: The outer protective component (13) includes a reinforcing cloth (1301), and protective covers (1302) are fixedly provided on both sides of the reinforcing cloth (1301). The reinforcing cloth (1301) and the protective covers (1302) are both located on the top of the EPDM rubber tube (1).

7. The universal high-pressure resistant three-way valve connector according to claim 6, characterized in that: Two locking posts (1303) are fixedly provided on the inner wall of one side of the protective cover (1302), and two locking slots are opened on the top of the flange (6), and the locking posts (1303) are engaged with the inside of the locking slots.

8. The universal high-pressure resistant three-way valve connector according to claim 1, characterized in that: One end of the galvanized steel pipe (7) is fixedly provided with flange two (8), and flange one (6) and EPDM rubber pipe (1) are coaxial with flange two (8).

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