An equal diameter clamp-pressing three-way valve

Abstract

The application discloses an equal-diameter clamping three-way valve and relates to the technical field of valves and pipelines, and aims to solve the technical problem of difficult operation of the external water pipe of the current clamping three-way valve. The valve body is composed of a valve body flow channel structure and a clamping structure located on the valve body flow channel structure. The valve body flow channel structure comprises a three-way sealing pipe. A sealing ring is arranged on the sealing groove. The sealing ring is located in a positioning cavity. The equal-diameter clamping three-way valve is formed by the combination of the valve body flow channel structure and the clamping structure. The three-way sealing pipe of the valve body flow channel structure is connected with three external connection pipes through an external connection protruding ring. Water inlet cavities are arranged in the external connection pipes in communication. The bottom clamping ring of the clamping structure is connected with the external connection protruding ring. The water pipe port does not need to be pretreated, and can be smoothly inserted and connected, so that the installation efficiency is greatly improved. The sealing ring is inlaid, so that the damage and deviation of the protruding rubber ring are avoided. Three equal-diameter clamping pipes make the three-way valve adapt to the water pipes of the same specification, and the universality and the connection consistency of the valve installation are improved.

Description

Technical Field

[0001] This invention relates to the field of valve and pipeline technology, and more specifically, to an equal-diameter press-fit three-way valve. Background Technology

[0002] In the connection scenario of the press-fit three-way valve and the external water pipe, the existing press-fit three-way valve relies on the sealing ring to achieve port sealing when the valve body is connected to the external water pipe. The sealing ring is directly sleeved on the outside of the external pipe of the valve body, and the outer diameter of the sealing ring is larger than the diameter of the external pipe body, forming an outwardly protruding sealing structure, which is a common connection sealing form in the industry.

[0003] This sealing structure causes the external water pipe to be obstructed by the protrusion of the sealing ring when inserted. The port of the external water pipe must be rounded or chamfered to allow it to be smoothly inserted, which not only increases installation steps and reduces pipe connection efficiency, but also easily scratches the sealing ring due to improper port treatment, leading to seal failure and leakage. It cannot simultaneously meet the requirements of ease of installation and sealing stability. Therefore, we propose an equal-diameter press-fit tee valve. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the prior art, adapt to practical needs, and provide an equal-diameter press-fit three-way valve to solve the technical problem of difficult operation of the current press-fit three-way valve with external water pipe.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: an equal-diameter press-fit three-way valve, the valve body comprising a valve body flow channel structure and a press-fit structure located on the valve body flow channel structure, the valve body flow channel structure including a three-way sealing tube, each of the three ports of the three-way sealing tube being connected to an external connecting pipe, an external convex ring being connected between the three-way sealing tube and the external connecting pipe, a sealing groove being opened on the external connecting pipe, and a communicating water inlet chamber being opened in the three external connecting pipes, the press-fit structure including a bottom press-fit ring connected to the three external convex rings of the three-way sealing tube, a press-fit tube one, a press-fit tube two, and a press-fit tube three being respectively connected to the three bottom press-fit rings, the press-fit tube one, the press-fit tube two, and the press-fit tube three having the same specifications, a positioning cavity being provided in the press-fit tube one, the press-fit tube two, and the press-fit tube three, and a sealing ring being provided on the sealing groove, the sealing ring being located in the positioning cavity.

[0006] Preferably, the diameter of the sealing ring is the same as the depth of the sealing groove, and the top of the sealing groove is horizontal to the wall of the outer pipe.

[0007] Preferably, the outer pipe has several parallel extended resistance-increasing grooves on one end surface near the water inlet of the inlet chamber, and the depth of the extended resistance-increasing grooves is less than the depth of the sealing groove.

[0008] Preferably, the bottom clamping ring has a clamping connection hole, and the bottom clamping ring is connected to the outer convex ring based on the clamping connection hole. After the bottom clamping ring is connected to the outer convex ring, a cavity for fixing clamping tube one, clamping tube two and clamping tube three is left between the bottom clamping ring and the outer tube.

[0009] Preferably, the walls of the first, second, and third clamping tubes are provided with a plurality of clamping positioning holes, which are located on the side of the first, second, and third clamping tubes near the bottom clamping ring.

[0010] Preferably, the bottom retaining ring has an inwardly recessed port near the outer convex ring, an outwardly expanded port away from the outer convex ring, and the two sides of the bottom retaining ring are arranged in an arc-shaped gradient.

[0011] Preferably, the two ends of the clamping tubes one, two, and three are flared outwards, and the middle is horizontally oriented. The diameter of the middle part of the clamping tubes one, two, and three is the same as the outer diameter of the external water pipe. Preferably, the outer pipe has two sealing grooves, which are arranged horizontally, and both sealing grooves are located on the side of the outer pipe near the outer convex ring.

[0012] Preferably, the number of clamping positioning holes on the clamping tube is three, and they are evenly distributed on the clamping tube. The clamping positioning holes are circular through holes, and they penetrate the clamping tube and communicate with the positioning cavity.

[0013] Preferably, the outer pipe between the sealing groove and the outer convex ring also has several parallel extended resistance-increasing grooves, and the spacing between two adjacent extended resistance-increasing grooves is the same.

[0014] Compared with the prior art, the beneficial effects of the present invention are: 1. This invention combines a valve body flow channel structure with a clamping structure to form an overall structure of an equal-diameter clamping three-way valve. The three-way sealing tube of the valve body flow channel structure is connected to three external pipes via an external convex ring. The external pipes have interconnected water inlet chambers. The bottom clamping ring of the clamping structure is connected to the external convex ring and respectively fixes clamping tube one, clamping tube two, and clamping tube three of the same specification. A sealing ring is set in the sealing groove of the external pipe and placed in the positioning cavity of the clamping tube. It adopts a connection method of embedded sealing ring, clamping tube wrapping and positioning, and equal diameter three-way ports, which effectively solves the core problem of existing clamping three-way valves where the outer diameter of the sealing rubber ring is larger than the pipe diameter and the external water pipe needs to be rounded and chamfered before insertion. It can be smoothly inserted without pre-treatment of the water pipe port, which greatly improves the installation efficiency. The embedded sealing ring design avoids damage and displacement of the rubber ring protrusion and ensures the sealing stability of the connection. The three sets of equal-diameter clamping tubes allow each port of the three-way valve to be adapted to the same specification water pipe, improving the valve installation versatility and connection consistency.

[0015] 2. This invention also features a structural design with a sealing groove on the outer pipe, a sealing ring diameter consistent with the depth of the sealing groove, and an outer wall flush with the outer pipe wall. This design employs a flush-mounted, embedded sealing ring installation method. This eliminates the insertion resistance caused by the protrusion of the sealing ring, while ensuring a seamless fit between the sealing ring and the outer pipe / water pipe. It avoids gaps caused by the protrusion of the sealing ring, preserving the convenience of smooth insertion while enhancing the sealing effect. This prevents damage to the sealing ring during pipe insertion and ensures long-term reliable connection sealing.

[0016] 3. The present invention also adopts a structural combination of shallow groove extension resistance-increasing groove on the external pipe and clamping positioning hole on the clamping pipe wall. It adopts a connection method of front-end shallow groove guide insertion and positioning hole auxiliary clamping and leak detection. On the basis of solving the problem of smooth water pipe insertion, the external water pipe is quickly guided into the external water pipe through the extension resistance-increasing groove and initially fixed. The clamping positioning hole facilitates the clamping equipment to apply force evenly to fix it. It can also quickly detect water leakage points during pressure testing, avoid leakage after installation that cannot be dealt with in time. It takes into account installation guidance, fixed positioning and later maintenance, and improves the convenience of installation and use. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is an exploded structural diagram of the present invention; Figure 3 This is a schematic diagram of the overall structure of one side of the present invention; Figure 4 This is a schematic diagram of the internal connection structure on one side of the present invention; Figure 5 This is a schematic diagram of the valve body flow channel structure connection of the present invention; Figure 6 This is a schematic diagram of one side of the external pipe of the present invention.

[0018] The following are the labels in the diagram: 100, valve body flow channel structure; 110, three-way sealing pipe; 111, external convex ring; 120, external pipe; 121, sealing groove; 122, extended resistance-increasing groove; 130, water inlet chamber; 200, clamping structure; 210, bottom clamping ring; 211, clamping connection hole; 220, sealing ring; 230, clamping tube one; 231, positioning chamber; 240, clamping tube two; 250, clamping tube three; 251, clamping positioning hole. Detailed Implementation

[0019] like Figures 1 to 6As shown, the present invention relates to an equal-diameter press-fit three-way valve. The valve body consists of a valve body flow channel structure 100 and a press-fit structure 200 located on the valve body flow channel structure 100. The valve body flow channel structure 100 includes a three-way sealing pipe 110, with external connecting pipes 120 connected to each of the three ports of the three-way sealing pipe 110. An external convex ring 111 is connected between the three-way sealing pipe 110 and the external connecting pipes 120. A sealing groove 121 is formed on the external connecting pipe 120, and a communicating water inlet chamber 130 is formed in the three external connecting pipes 120. The press-fit structure... 200 includes bottom clamping rings 210 connected to three external protrusions 111 of the three-way sealing tube 110. The three bottom clamping rings 210 are respectively connected to clamping tube one 230, clamping tube two 240 and clamping tube three 250, and the clamping tube one 230, clamping tube two 240 and clamping tube three 250 have the same specifications. The clamping tube one 230, clamping tube two 240 and clamping tube three 250 are provided with positioning cavities 231. The sealing groove 121 is provided with sealing rings 220, and the sealing rings 220 are located in the positioning cavities 231.

[0020] This invention utilizes a valve body flow channel structure 100 and a clamping structure 200 to form an overall structure of an equal-diameter clamping three-way valve. The three-way sealing pipe 110 of the valve body flow channel structure 100 is connected to three external pipes 120 via an external convex ring 111. Each external pipe 120 has a communicating inlet chamber 130. The bottom clamping ring 210 of the clamping structure 200 is connected to the external convex ring 111 and respectively fixes clamping pipes 230, 240, and 250 of the same specification. A sealing ring 220 is installed in the sealing groove 121 of the external pipes 120 and placed within it. In the positioning cavity 231 of the crimp tube, a connection method of embedded sealing ring, crimp tube wrapping and positioning, and uniform diameter of T-port is adopted. This effectively solves the core problem of existing crimp T-valve sealing ring outer diameter being larger than the pipe body diameter and external water pipe requiring rounded chamfering for insertion. It can be smoothly inserted without pre-treatment of water pipe ports, greatly improving installation efficiency. The embedded sealing ring design avoids damage and displacement of the rubber ring protrusion, ensuring the sealing stability of the connection. Three sets of equal diameter crimp tubes allow each port of the T-valve to be adapted to water pipes of the same specification, improving the universality of valve installation and connection consistency.

[0021] Specifically, the diameter of the sealing ring 220 is the same as the depth of the sealing groove 121, and the top of the sealing groove 121 is horizontal with the pipe wall of the outer pipe 120. After the sealing ring 220 is installed in the sealing groove 121, the outer wall of the sealing ring 220 is relatively horizontal with the pipe wall of the outer pipe 120. This ensures that when the external water pipe is inserted into the outer pipe 120, there will be no pressure from the sealing ring 220. There is no need to round or chamfer the pipe opening of the external water pipe, and it will not affect its sealing performance, thus improving the efficiency of the insertion.

[0022] More specifically, the outer pipe 120 has several parallel extended resistance-increasing grooves 122 on the surface near the inlet of the water inlet chamber 130, and the depth of the extended resistance-increasing grooves 122 is less than the depth of the sealing groove 121. The shallow grooves of the extended resistance-increasing grooves 122 are designed to facilitate the quick insertion of the front-end external water pipe, and there is a smooth area on the outer pipe 120 between the extended resistance-increasing grooves 122 and the sealing groove 121. Based on this area, the outer pipe can smoothly pass through the sealing ring 220 and be inserted into the side near the bottom clamping ring 210 to form an initial fixed state.

[0023] The present invention also features a structural design in which the outer pipe 120 has a sealing groove 121, and the diameter of the sealing ring 220 is consistent with the depth of the sealing groove 121 and the outer wall is flush with the wall of the outer pipe 120. It adopts a connection method of flush installation with the sealing ring embedded in the pipe. This not only solves the problem of not needing to insert the external water pipe with a rounded chamfer, but also eliminates the insertion resistance caused by the protrusion of the sealing ring. At the same time, it ensures a seamless fit between the sealing ring and the outer pipe and the external water pipe, and avoids sealing gaps caused by the deviation of the sealing ring protrusion. It retains the convenience of smooth insertion and enhances the sealing effect, prevents the sealing ring from being scratched when the water pipe is inserted, and ensures the reliability of the connection seal for a long time.

[0024] Furthermore, the bottom clamping ring 210 has a clamping connection hole 211 inside. The bottom clamping ring 210 is connected to the external convex ring 111 based on the clamping connection hole 211. After the bottom clamping ring 210 is connected to the external convex ring 111, a cavity is left between the bottom clamping ring 210 and the external pipe 120 for fixing the clamping tube 1 230, clamping tube 240 and clamping tube 3 250. The bottom clamping ring 210 is used to fix the clamping tube 1 230, clamping tube 240 and clamping tube 3 250, which plays a role in overall position restriction, facilitates installation, and ensures the sealing performance after clamping the external water pipe.

[0025] Furthermore, the walls of the first clamping tube 230, the second clamping tube 240, and the third clamping tube 250 are provided with several clamping positioning holes 251. The clamping positioning holes 251 are located on the side of the first clamping tube 230, the second clamping tube 240, and the third clamping tube 250 near the bottom clamping ring 210. The clamping positioning holes 251 ensure that after the external water pipe is inserted into the positioning cavity 231 between the first clamping tube 230 and the external pipe 120, the external water pipe can be fixed by the clamping device. At the same time, it is convenient to know whether there is a leak during pressure testing, so as to quickly deal with it and avoid the situation where the leakage problem cannot be dealt with in time after installation.

[0026] Furthermore, the bottom clamping ring 210 has an inward-recessed port near the external convex ring 111 and an outward-expanding port away from the external convex ring 111. The two sides of the bottom clamping ring 210 are also arranged in an arc-shaped gradient. The overall structure is designed to diffuse from the inside out, which facilitates the connection of the external convex ring 111 while allowing the clamping connection hole 211 for installing the external water pipe and clamping pipe 230 to flow out, improving the overall integrity and facilitating the fixation of the clamping device in the later stage.

[0027] It is worth noting that the two ends of the compression tubes 230, 240, and 250 are flared outwards, and the middle is horizontal. The diameter of the middle part of the compression tubes 230, 240, and 250 is the same as the outer diameter of the external water pipe. The compression tubes 230, 240, and 250 are arranged symmetrically, which facilitates connection to the bottom compression ring 210 and easy insertion of the external water pipe, reducing the resistance when inserting the external water pipe without affecting its sealing performance.

[0028] It is worth mentioning that there are two sealing grooves 121 on the external pipe 120, and they are set horizontally. Both sealing grooves 121 are opened on the side of the external pipe 120 near the external convex ring 111. The two sealing grooves 121 work with the sealing ring 220 to increase the sealing performance of the external water pipe connection. At the same time, the side near the external convex ring 111 is set to increase the sealing depth of the external water pipe.

[0029] It is worth noting that there are three clamping positioning holes 251 on the clamping tube 230, which are evenly distributed on the clamping tube 230. The clamping positioning holes 251 are circular through holes that penetrate the clamping tube 230 and communicate with the positioning cavity 231. The clamping positioning holes 251 facilitate the external clamping device to evenly fix the clamping tube 230, clamping tube 240 and clamping tube 250. They also allow water leakage at the connection between the external water pipe and the external pipe 120 during pressurization, which can be discharged through the clamping positioning holes 251 for quick maintenance.

[0030] It is worth noting that the outer pipe 120 between the sealing groove 121 and the outer convex ring 111 also has several parallel extended resistance-increasing grooves 122, and the spacing between two adjacent extended resistance-increasing grooves 122 is the same. The several extended resistance-increasing grooves 122 provided on the outer pipe 120 facilitate the insertion of the external water pipe, and the connection sealing at this point can be increased by wrapping with sealing tape later.

[0031] This invention also incorporates a structural combination of a shallow groove-type extension resistance-increasing groove 122 on the outer pipe 120 and a clamping positioning hole 251 on the clamping pipe wall. This combination employs a front-end shallow groove guide insertion and a positioning hole-assisted clamping and leak detection connection method. While ensuring smooth water pipe insertion, it allows the outer water pipe to be quickly guided and inserted via the extension resistance-increasing groove 122, achieving initial fixation. The clamping positioning hole 251 facilitates even force application and fixation by the clamping device, and also enables rapid detection of leaks during pressure testing, preventing untimely handling of post-installation leaks. This design balances installation guidance, fixed positioning, and subsequent maintenance, improving the convenience of installation and use.

[0032] Working principle: This embodiment provides an equal diameter press-fit three-way valve. In use, the external water pipe is smoothly inserted into the positioning cavity 231 of the press-fit tube along the extension resistance-increasing groove 122 of the external pipe 120. Since the sealing ring 220 is embedded in the sealing groove 121 and flush with the pipe wall of the external pipe 120, the water pipe port can be connected without pretreatment. The bottom press-fit ring 210 is fixed to the external convex ring 111 through the press-fit connection hole 211, providing positioning support for the first press-fit tube 230, the second press-fit tube 240, and the third press-fit tube 250. The external press-fit device applies force evenly to the press-fit tube through the press-fit positioning hole 251, so that the press-fit tube is tightly fitted with the external water pipe and the external pipe 120, and the sealing ring 220 achieves a seal. The water flows through the water inlet cavity 130 of the three-way sealing tube 110 to complete the three-way diversion. If leakage occurs during pressurization, it can overflow from the press-fit positioning hole 251, and maintenance can be carried out.

[0033] The embodiments disclosed in this invention are preferred embodiments, but are not limited thereto. Those skilled in the art can easily understand the spirit of this invention based on the above embodiments and make different extensions and variations, but as long as they do not depart from the spirit of this invention, they are all within the protection scope of this invention.

Claims

1. A constant diameter press-fit three-way valve, characterized in that, The valve body consists of a valve body flow channel structure (100) and a clamping structure (200) located on the valve body flow channel structure (100); The valve body flow channel structure (100) includes a three-way sealing pipe (110), and each of the three ports of the three-way sealing pipe (110) is connected to an external pipe (120). An external convex ring (111) is connected between the three-way sealing pipe (110) and the external pipe (120). A sealing groove (121) is opened on the external pipe (120), and a water inlet chamber (130) is opened in the three external pipes (120). The clamping structure (200) includes a bottom clamping ring (210) connected to three external protrusions (111) of the three-way sealing tube (110). The three bottom clamping rings (210) are respectively connected to clamping tube one (230), clamping tube two (240) and clamping tube three (250), and the clamping tube one (230), clamping tube two (240) and clamping tube three (250) have the same specifications. The first clamping tube (230), the second clamping tube (240) and the third clamping tube (250) are provided with positioning cavities (231), and the sealing groove (121) is provided with sealing rings (220), which are located in the positioning cavities (231).

2. The equal-diameter press-fit three-way valve according to claim 1, characterized in that, The diameter of the sealing ring (220) is the same as the depth of the sealing groove (121), and the top of the sealing groove (121) is horizontal to the pipe wall of the outer pipe (120).

3. The equal-diameter press-fit three-way valve according to claim 2, characterized in that, The outer pipe (120) has several parallel extended resistance-increasing grooves (122) on one end surface near the inlet of the water inlet chamber (130), and the depth of the extended resistance-increasing grooves (122) is less than the depth of the sealing groove (121).

4. The equal-diameter press-fit three-way valve according to claim 3, characterized in that, The bottom clamping ring (210) has a clamping connection hole (211) inside. The bottom clamping ring (210) is connected to the outer convex ring (111) based on the clamping connection hole (211). After the bottom clamping ring (210) is connected to the outer convex ring (111), a cavity is left between the bottom clamping ring (210) and the outer tube (120) for fixing the first clamping tube (230), the second clamping tube (240) and the third clamping tube (250).

5. The equal-diameter press-fit three-way valve according to claim 4, characterized in that, The walls of the first (230), second (240) and third (250) clamping tubes are provided with a plurality of clamping positioning holes (251), which are located on the side of the first (230), second (240) and third (250) clamping tubes near the bottom clamping ring (210).

6. The equal-diameter press-fit three-way valve according to claim 5, characterized in that, The bottom retaining ring (210) has an inwardly recessed port near the outer convex ring (111), and an outwardly expanded port away from the outer convex ring (111). The two sides of the bottom retaining ring (210) are arranged in an arc-shaped gradient.

7. A constant diameter press-fit three-way valve according to claim 6, characterized in that, The two sides of the clamping tube one (230), clamping tube two (240) and clamping tube three (250) are arranged in an outward-expanding shape and the middle is horizontal. The diameter of the middle part of the clamping tube one (230), clamping tube two (240) and clamping tube three (250) is the same as the outer wall diameter of the external water pipe.

8. The equal-diameter press-fit three-way valve according to claim 1, characterized in that, The outer tube (120) has two sealing grooves (121) arranged horizontally, and both sealing grooves (121) are located on the side of the outer tube (120) near the outer convex ring (111).

9. A constant diameter press-fit three-way valve according to claim 8, characterized in that, The number of clamping positioning holes (251) on the clamping tube (230) is three, and they are evenly distributed on the clamping tube (230). The clamping positioning holes (251) are circular through holes, and the clamping positioning holes (251) penetrate the clamping tube (230) and communicate with the positioning cavity (231).

10. A constant diameter press-fit three-way valve according to claim 1, characterized in that, Several parallel extended resistance-increasing grooves (122) are also opened on the outer pipe (120) between the sealing groove (121) and the outer convex ring (111), and the spacing between two adjacent extended resistance-increasing grooves (122) is the same.

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