Pipe joint with cut-off pressure relief function on water segregator

Abstract

The utility model relates to a pipe joint with cut-off and pressure relief functions on a water segregator, which comprises the water segregator and a pipe joint, the pipe joint comprises a cylindrical annular sleeve, an external thread connecting pipe is formed at one end of the sleeve, the external thread connecting pipe at one end of the sleeve is screwed on the water segregator, an annular convex ring is formed on the inner wall of the middle of the sleeve, and the outer thread connecting pipe is screwed on the convex ring. Plane type cutting grooves are formed in the outer walls of the two sides and the outer wall of the lower side of the sleeve, a rectangular inserting groove penetrating through the bottom face of the cutting groove in the lower side of the sleeve is formed in the inner wall of the protruding ring, a rectangular valve plate is inserted into the inserting groove, and semicircular inserting holes are formed in the two side walls of the lower portion of the inserting groove respectively. A first guide column and a second guide column which have semicircular sections and extend to the lower end face of the valve plate are formed on the end faces of the two sides of the valve plate respectively, and the upper ends of the first guide column and the second guide column are located in inner holes of the convex rings respectively. The water segregator connector can be switched between a sealing plug and a series connector, and meanwhile the pressure relief function of the water segregator can be achieved no matter how the water segregator connector is switched.

Description

Technical field:

[0001] The utility model relates to the technical field of water distributors, and more specifically to a pipe joint with a cut-off pressure relief function on a water distributor. Background technology:

[0002] The water distributor and collector are water distribution and collection devices used to connect the supply and return water of various heating pipes in the water heating system. The water distributor used in the floor heating and air conditioning system should be made of brass or other metal materials. The existing water distributor generally includes a main pipeline connected to the water pipe. The main pipeline is formed with a number of water distributor interfaces, which can be installed and connected to the water distributor pipes respectively. At present, the water in the water heating system generally has pressure to realize the flow of water in the system pipeline. When the water pressure in the water heating system is too high, it will cause damage to the pipeline. Therefore, the main pipe of some water distributors will be equipped with a pressure relief valve structure, but some existing water distributors have a pressure relief valve structure. In order to add a pressure relief valve structure, someone proposed to design a sealing plug with a pressure relief valve structure and connect it to the water distributor, so that the water distributor can have a pressure stabilizing function; but the plug will limit the series connection between multiple water distributors, so someone proposed to install the pressure relief valve structure on the pipe joint, so that the series connection and pressure stabilization between the water distributors can be achieved; so there are a sealing plug and a pipe joint of the pressure relief valve structure, and someone proposed whether the above functions can be designed on the same pipe joint, so that it can be used as a pressure relief joint for series connection and also as a pressure relief plug; so it is necessary to design a pipe joint with the above structure. Utility model content:

[0003] The purpose of the utility model is to address the deficiencies of the prior art and to provide a pipe joint with a cut-off pressure relief function on a water distributor, which combines the cut-off and pressure relief structures on a valve seat, so that the pipe joint can be switched between a sealing plug and a series joint. At the same time, no matter how it is switched, the water distributor can have a pressure relief function.

[0004] A pipe joint with a cut-off pressure relief function on a water distributor comprises a water distributor and a pipe joint, wherein the pipe joint comprises a cylindrical annular sleeve, one end of the sleeve is formed with an external threaded pipe joint, the external threaded pipe joint at one end of the sleeve is screwed on the water distributor, an annular convex ring is formed on the inner wall of the middle part of the sleeve, and planar grooves are formed on the outer walls on both sides of the sleeve and the outer wall on the lower side, a rectangular slot is formed on the inner wall of the convex ring and passes through the bottom surface of the groove on the lower side of the sleeve, a rectangular valve plate is inserted in the slot, and semicircular jacks are respectively formed on the two side walls at the lower part of the slot, and a first guide column and a second guide column with a semicircular cross section extending to the lower end surface of the valve plate are respectively formed on the end surfaces on both sides of the valve plate, and the upper ends of the first guide column and the second guide column are respectively located in the inner hole of the convex ring;

[0005] A threaded hole penetrating the lower end face of the valve plate is formed inside the first guide post, and a pressure relief hole penetrating the upper end of the second guide post and the lower end face of the valve plate is formed inside the second guide post. A pressure relief pipe extending downward is formed on the lower end face of the valve plate below the pressure relief hole. The pressure relief hole is located on one side of the valve plate close to the water distributor.

[0006] A rectangular valve seat is fixedly connected to the lower end face of the sleeve. A valve hole opposite to the valve plate is formed on the valve seat. The lower end of the valve plate extends out of the sleeve and is inserted into the valve hole of the valve seat. The lower end of the pressure relief pipe passes through the valve seat and exposes the lower end face of the valve seat. A guide groove communicating with the valve hole is formed on the outer wall on one side of the valve seat. A pagoda joint is formed on the outer wall of the upper part of the pressure relief pipe. The pagoda joint is inserted into the guide groove of the valve seat. A vertical stop bolt is pivotally connected to the lower end of the valve seat. The upper end of the stop bolt is screwed into the threaded hole of the valve plate. A retaining ring is formed on the inner wall of the pressure relief pipe above the pagoda joint. A plug and a pressure relief spring are inserted into the pressure relief pipe below the retaining ring. The two ends of the pressure relief spring are respectively pressed against the plug and the pressure relief adjusting bolt. The pressure relief adjusting bolt is screwed into the lower end of the pressure relief pipe. The upper end face of the plug is pressed against the lower end face of the retaining ring.

[0007] Preferably, the guide groove on the valve seat penetrates the upper end face of the valve seat. The groove width of the guide groove is equal to the pipe diameter of the pagoda joint. The head of the pagoda joint extends out of the outer wall of the valve seat.

[0008] Preferably, the upper end face of the valve seat abuts against the bottom surface of the cut groove on the lower side of the sleeve. A plurality of ear seats are formed on the outer side wall of the upper part of the valve seat. Screws are inserted into the ear seats and screwed and fixed on the sleeve.

[0009] Preferably, the stop bolt includes a plum blossom-shaped head and a vertical stud. The head of the stop bolt abuts against the lower end face of the valve seat. A limit sleeve is inserted and fixedly connected to the stud of the stop bolt in the valve hole of the valve seat. The limit sleeve abuts against the lower bottom surface of the valve hole.

[0010] Preferably, an annular sealing ring is embedded and fixed on the inner side wall of the slot close to the cut groove on the lower side of the sleeve. The sealing ring is pressed against the outer walls of the valve plate, the first guide post and the second guide post.

[0011] Preferably, the groove width of the slot on the sleeve is smaller than the length of the convex ring. "冂"-shaped sealing strips are embedded and fixed on the side walls on both sides and the top of the slot. The sealing strips are pressed against the outer side wall of the valve plate.

[0012] Preferably, the valve hole on the valve seat is composed of a rectangular concave hole and vertical grooves in the shape of semi-circles on both sides of the concave hole. The arc radius of the inner wall of the vertical groove is larger than the pipe diameter of the pagoda joint. The guide groove is located on the inner wall of the vertical groove.

[0013] The beneficial effects of the utility model are as follows:

[0014] The water distributor joint integrates the cut-off and pressure relief structures on one valve seat, so that the pipe joint can be switched between the sealing plug and the series joint. At the same time, no matter how the switch is made, the water distributor can have a pressure relief function. Description of the drawings:

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the inner pipe joint of the utility model from the left side;

[0017] Figure 3 for Figure 2 Sectional view at AA in the middle;

[0018] Figure 4 This is a schematic structural diagram of the inner pipe joint of the utility model from the right side;

[0019] Figure 5 for Figure 4 Cross-sectional view at the middle BB.

[0020] In the figure: 10, water distributor; 20, pipe joint; 21, sleeve; 22, valve plate; 23, valve seat; 24, stop bolt; 25, screw; 26, plug; 27, pressure relief spring; 28, pressure relief adjusting bolt; 29, sealing ring; 210, limit sleeve. Specific implementation method:

[0021] Example: See Figures 1 to 5 As shown, a pipe joint with a cut-off pressure relief function on a water distributor includes a water distributor 10 and a pipe joint 20. The pipe joint 20 includes a cylindrical ring-shaped sleeve 21. One end of the sleeve 21 is formed with an external threaded pipe 211. The external threaded pipe 211 at one end of the sleeve 21 is screwed to the water distributor 10. An annular convex ring 212 is formed on the inner wall of the middle part of the sleeve 21. Planar grooves 215 are formed on the outer walls on both sides of the sleeve 21 and the outer wall on the lower side. The inner wall of the convex ring 212 is A slot 213 is formed on the top and penetrates the bottom surface of the lower groove 215 of the sleeve 21. A rectangular valve plate 22 is inserted into the slot 213. Semicircular plug holes 214 are formed on the two side walls of the lower part of the slot 213. The end surfaces on both sides of the valve plate 22 are respectively formed with a first guide column 221 and a second guide column 222 with a semicircular cross section and extending to the lower end surface of the valve plate 22. The upper ends of the first guide column 221 and the second guide column 222 are respectively located in the inner hole of the convex ring 212;

[0022] A threaded hole 224 penetrating the lower end surface of the valve plate 22 is formed in the first guide column 221, a pressure relief hole 223 penetrating the upper end of the second guide column 222 and the lower end surface of the valve plate 22 is formed in the second guide column 222, a pressure relief pipe 225 extending downward is formed on the lower end surface of the valve plate 22 below the pressure relief hole 223, and the pressure relief hole 223 is located on the side of the valve plate 22 close to the water divider 10; the arc radius of the outer wall of the first guide column 221 is equal to the arc radius of the outer wall of the second guide column 222, and the outer walls of the first guide column 221 and the second guide column 222 respectively abut against the inner wall of the plug hole 214;

[0023] A rectangular valve seat 23 is fixedly connected to the lower end surface of the sleeve 21, and a valve hole 231 opposite to the valve plate 22 is formed on the valve seat 23. The lower end of the valve plate 22 extends out of the sleeve 21 and is inserted into the valve hole 231 of the valve seat 23. The lower end of the pressure relief pipe 225 passes through the valve seat 23 and exposes the lower end surface of the valve seat 23; a guide groove 232 connected to the valve hole 231 is formed on the outer wall of one side of the valve seat 23, and a pagoda joint 226 is formed on the outer wall of the upper part of the pressure relief pipe 225. The pagoda joint 226 is inserted in the guide groove 232 of the valve seat 23; the lower end of the valve seat 23 is pivotally connected to a vertical stop screw Bolt 24, the upper end of the stop bolt 24 is screwed into the threaded hole 224 of the valve plate 22; a retaining ring 227 is formed on the inner wall of the pressure relief pipe 225 on the upper side of the pagoda joint 226, and a plug 26 and a pressure relief spring 27 are inserted into the pressure relief pipe 225 on the lower side of the retaining ring 227, and the two ends of the pressure relief spring 27 are respectively pressed against the plug 26 and the pressure relief adjusting bolt 28, the pressure relief adjusting bolt 28 is screwed into the lower end of the pressure relief pipe 225, and the upper end face of the plug 26 is pressed against the lower end face of the retaining ring 227; the outer wall of the pressure relief pipe 225 and the outer wall of the first guide column 221 are in the same cylindrical surface.

[0024] The guide groove 232 on the valve seat 23 passes through the upper end surface of the valve seat 23 , the groove width of the guide groove 232 is equal to the pipe diameter of the pagoda connector 226 , the head of the pagoda connector 226 extends out of the outer wall of the valve seat 23 , and the guide groove 232 needs to have an inlet to facilitate the installation of the pagoda connector 226 into the valve seat 23 .

[0025] The upper end surface of the valve seat 23 abuts against the bottom surface of the groove 215 at the lower side of the sleeve 21. A plurality of ear seats 233 are formed on the outer side wall of the upper part of the valve seat 23. Screws 25 are inserted into the ear seats 233. The screws 25 are screwed and fixed on the sleeve 21. Figure 5 As shown, there are three groups of ear seats 233, and the valve seat 23 is fixedly connected to the sleeve 21 by a plurality of screws 25 to realize the assembly and disassembly of the components.

[0026] The cut-off bolt 24 includes a plum blossom-shaped head and a vertical stud. The head of the cut-off bolt 24 abuts against the lower end face of the valve seat 23. A limit sleeve 210 is inserted and fixedly connected to the stud of the cut-off bolt 24 in the valve hole 231 of the valve seat 23, and the limit sleeve 210 abuts against the lower bottom surface of the valve hole 231.

[0027] An annular sealing ring 29 is embedded and fixed on the inner side wall of the slot 213 of the sleeve 21 close to the lower side cut groove 215 of the sleeve 21. The sealing ring 29 presses against the outer walls of the valve plate 22, the first guide post 221 and the second guide post 222.

[0028] The width of the slot 213 on the sleeve 21 is smaller than the length of the convex ring 212. "冂"-shaped sealing strips are embedded and fixed on the side walls on both sides and the top of the slot 213, and the sealing strips press against the outer side wall of the valve plate 22.

[0029] The valve hole 231 on the valve seat 23 is composed of a rectangular concave hole and vertical grooves on both sides of the concave hole that are semi-circular. The radius of the arc of the inner wall of the vertical groove is greater than the pipe diameter of the tower joint 226, and the guide groove 232 is located on the inner wall of the vertical groove.

[0030] Working principle: The present utility model is a pipe joint with a cut-off and pressure relief function on a water distribution device. Its technical points are reflected in the structures of the valve plate 22, the valve seat 23 and the cut-off bolt 24. The valve plate 22 is inserted on the sleeve 21. By rotating the cut-off bolt 24, the valve plate 22 can be moved up and down. When the valve plate 22 moves up to the top, as Figure 3 shown, the valve plate 22 can close the inner hole at the convex ring 212, which is equivalent to cut-off, and the pipe joint is used as a sealing plug; moreover, the valve plate 22 is provided with a pressure relief hole 223 and a pressure relief pipe 225 structure. When the water pressure in the water distribution device is too high, the acting force of the pressure relief spring 27 can be overcome, the plug 26 moves down, and the water pressure can be discharged from the pressure relief hole 223, the pressure relief pipe 225 and the tower joint 226. A drain pipe can be inserted on the tower joint 226;

[0031] When this pipe joint is connected between water distribution devices, it is required that the valve plate 22 moves down to open the inner hole at the convex ring 212, and the pipe joint is used as a series joint; at the same time, when it is used as a series joint, pressure relief can still be carried out through the pressure relief hole 223, the pressure relief pipe 225 and the tower joint 226.

[0032] The described embodiments are used to illustrate the present utility model by way of example, rather than to limit the present utility model. Any person skilled in the art can modify the described embodiments without departing from the spirit and scope of the present utility model. Therefore, the scope of the rights protection of the present utility model should be as listed in the claims of the present utility model.

Claims

1. A pipe joint with a cut-off pressure relief function on a water distributor, comprising a water distributor (10) and a pipe joint (20), wherein the pipe joint (20) comprises a cylindrical ring-shaped sleeve (21), one end of the sleeve (21) is formed with an external threaded pipe (211), and the external threaded pipe (211) at one end of the sleeve (21) is screwed onto the water distributor (10), characterized in that: An annular convex ring (212) is formed on the inner wall of the middle part of the sleeve (21), and planar grooves (215) are formed on the outer walls on both sides of the sleeve (21) and on the outer walls on the lower side. A rectangular slot (213) is formed on the inner wall of the convex ring (212) and passes through the bottom surface of the lower groove (215) of the sleeve (21). A rectangular valve plate (22) is inserted into the slot (213). Semicircular insertion holes (214) are respectively formed on the two side walls of the lower part of the slot (213). A first guide column (221) and a second guide column (222) with a semicircular cross section and extending to the lower end surface of the valve plate (22) are respectively formed on the end surfaces on both sides of the valve plate (22), and the upper ends of the first guide column (221) and the second guide column (222) are respectively located in the inner hole of the convex ring (212); A threaded hole (224) is formed in the first guide column (221) and passes through the lower end surface of the valve plate (22); a pressure relief hole (223) is formed in the second guide column (222) and passes through the upper end of the second guide column (222) and the lower end surface of the valve plate (22); a pressure relief pipe (225) extending downward is formed on the lower end surface of the valve plate (22) below the pressure relief hole (223); and the pressure relief hole (223) is located on a side of the valve plate (22) close to the water distributor (10); A rectangular valve seat (23) is fixedly connected to the lower end surface of the sleeve (21), and a valve hole (231) opposite to the valve plate (22) is formed on the valve seat (23). The lower end of the valve plate (22) extends out of the sleeve (21) and is inserted into the valve hole (231) of the valve seat (23). The lower end of the pressure relief pipe (225) passes through the valve seat (23) to expose the lower end surface of the valve seat (23). A guide groove (232) connected to the valve hole (231) is formed on the outer wall of one side of the valve seat (23), and a pagoda joint (226) is formed on the outer wall of the upper part of the pressure relief pipe (225). The pagoda joint (226) is inserted into the guide groove (232) of the valve seat (23). The lower end of the valve seat (23) is pivotally connected to a vertical stop bolt (24), and the upper end of the stop bolt (24) is screwed into the threaded hole (224) of the valve plate (22); a retaining ring (227) is formed on the inner wall of the pressure relief pipe (225) on the upper side of the pagoda joint (226), and a plug (26) and a pressure relief spring (27) are inserted into the pressure relief pipe (225) on the lower side of the retaining ring (227), and the two ends of the pressure relief spring (27) are respectively pressed against the plug (26) and the pressure relief adjustment bolt (28), and the pressure relief adjustment bolt (28) is screwed to the lower end of the pressure relief pipe (225), and the upper end surface of the plug (26) is pressed against the lower end surface of the retaining ring (227).

2. A pipe joint with a cut-off pressure relief function on a water distributor according to claim 1, characterized in that: The guide groove (232) on the valve seat (23) passes through the upper end surface of the valve seat (23), the groove width of the guide groove (232) is equal to the pipe diameter of the pagoda connector (226), and the head of the pagoda connector (226) extends out of the outer wall of the valve seat (23).

3. A pipe joint with a cut-off pressure relief function on a water distributor according to claim 1, characterized in that: The upper end face of the valve seat (23) abuts against the bottom surface of the lower side cutting groove (215) of the sleeve (21). A number of lugs (233) are formed on the outer side wall of the upper part of the valve seat (23). Screws (25) are inserted into the lugs (233) and are screwed and fixed on the sleeve (21).

4. A pipe joint with a cut-off pressure relief function on a water distributor according to claim 1, characterized in that: The stop bolt (24) includes a plum blossom-shaped head and a vertical stud. The head of the stop bolt (24) abuts against the lower end face of the valve seat (23). A limit sleeve (210) is inserted and fixedly connected to the stud of the stop bolt (24) in the valve hole (231) of the valve seat (23), and the limit sleeve (210) abuts against the lower bottom surface of the valve hole (231).

5. The pipe joint with cut-off pressure relief function on the water distributor according to claim 1, characterized in that: An annular sealing ring (29) is embedded and fixed on the inner side wall of the slot (213) close to the lower side cutting groove (215) of the sleeve (21). The sealing ring (29) presses against the outer walls of the valve plate (22), the first guide post (221) and the second guide post (222).

6. A pipe joint with a cut-off pressure relief function on a water distributor according to claim 1, characterized in that: The groove width of the slot (213) on the sleeve (21) is smaller than the length of the convex ring (212). "冂”-shaped sealing strips are embedded and fixed on the side walls on both sides and at the top of the slot (213), and the sealing strips press against the outer side wall of the valve plate (22).

7. A pipe joint with a cut-off pressure relief function on a water distributor according to claim 2, characterized in that: The valve hole (231) on the valve seat (23) is composed of a rectangular concave hole and vertical grooves on both sides of the concave hole that are semi-circular. The arc radius of the inner wall of the vertical groove is larger than the pipe diameter of the宝塔接头(226), and the guide groove (232) is located on the inner wall of the vertical groove.

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