Flow valve

Abstract

The utility model relates to the field of valves, in particular to a flow valve which comprises a flow valve body, outer threaded pipes are rotatably connected and installed at the two ends of the flow valve body, a plurality of grooves are evenly formed in the ends, away from the flow valve body, of the outer threaded pipes, and cavity columns are rotatably installed in the grooves. A T-shaped pull rod is slidably mounted in the cavity column, and the end, away from the flow valve, of the T-shaped pull rod is located on the outer side of the cavity column. A connecting pipe is installed in the outer threaded pipe, a positioning ring is fixedly installed on the circumferential face of the connecting pipe, and a U-shaped groove is formed in the circumferential face of the positioning ring. The valve can be rapidly connected under the cooperation of the internal threads, the external connecting pipe and other structures, the tedious process that multiple bolts can be fixed manually or with the help of tools in the past is omitted, and the construction time and the construction cost are greatly saved.

Description

Technical Field

[0001] The utility model relates to the field of valves, in particular to a flow valve. Background Art

[0002] The flow regulating valve is also known as the self-operated flow control valve, flow balancing valve, and static balancing valve. It is an intuitive and simple flow regulating control device. The flow regulating valve used in the pipeline network can directly set the flow according to the design. The valve can automatically eliminate the flow deviation caused by the residual pressure head and pressure fluctuation of the pipeline under the action of water. No matter how the system pressure changes, the set flow rate is maintained unchanged. These functions of the valve enable the pipeline network flow regulation to be completed at one time, turning the network adjustment work into a simple flow distribution, and effectively solving the hydraulic imbalance of the pipeline network.

[0003] Flow valves are suitable for water systems that require flow control, especially for flow control of non-corrosive liquid media such as heating and air conditioning. When installed in a water system, the system flow can be automatically kept constant at the required set value after a single adjustment before operation.

[0004] However, the existing flow control valve and pipeline connection are mostly fixed with multiple bolts. This connection method takes a long time to tighten and fix the bolts during use, which is time-consuming and labor-intensive. Secondly, the two ends of the traditional flow valves on the market are directly fitted with the pipe mouths, and sealing gaskets are placed between the pipes. This method will leak over time and is no longer applicable. Summary of the invention

[0005] The purpose of the utility model is to provide a flow valve that can be quickly connected with the cooperation of structures such as internal threads and external connecting pipes, eliminating the cumbersome process of fixing multiple bolts manually or with the help of tools, greatly saving construction time and construction costs, so as to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above object, the utility model provides the following technical solution: a flow valve, comprising a flow valve, both ends of the flow valve are rotatably connected and installed with external threaded pipes;

[0007] A plurality of grooves are evenly formed at one end of the external threaded tube away from the flow valve, a cavity column is rotatably installed inside the groove, a T-shaped tie rod is slidably installed inside the cavity column, and one end of the T-shaped tie rod away from the flow valve is located outside the cavity column;

[0008] A connecting pipe is installed inside the externally threaded pipe, a positioning ring is fixedly installed on the circumferential surface of the connecting pipe, and a U-shaped groove is opened on the circumferential surface of the positioning ring;

[0009] One end of the T-shaped tie rod away from the flow valve can be installed inside the U-shaped groove.

[0010] Preferably, internal threads are provided at both ends of the flow valve.

[0011] Preferably, adjacent ends of the external threaded pipes are fixedly mounted with connecting thread heads, and the connecting thread heads can be rotatably mounted on both ends of the flow valve.

[0012] Preferably, a spring is fixedly installed inside the cavity column.

[0013] Preferably, one end of the spring away from the flow valve is fixedly connected to the T-shaped pull rod.

[0014] Preferably, the outer diameter of the connecting pipe is consistent with the inner diameter of the externally threaded pipe.

[0015] Preferably, a sealing ring is rotatably mounted on the circumferential surface of the externally threaded pipe.

[0016] Preferably, a sealing gasket is installed at one end of the internal part of the externally threaded pipe close to the flow valve.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] 1. The utility model can quickly connect the valve with the cooperation of the internal thread, the external connecting pipe and other structures, eliminating the cumbersome process of fixing multiple bolts manually or with the help of tools, thus greatly saving construction time and construction costs.

[0019] 2. With the cooperation of the external threaded pipe and other structures, the utility model can allow the connecting pipe to be inserted into the interior thereof, eliminating the previous situation where only mouth-to-mouth fitting is possible, and with the cooperation of the structure, leakage can be avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 This is an external view of the main body of the utility model;

[0022] Figure 2 This is a schematic diagram of a flow valve of the utility model;

[0023] Figure 3 This is a schematic diagram of an externally threaded pipe and a T-shaped pull rod of the utility model;

[0024] Figure 4 This is a cross-sectional view of an externally threaded pipe of the utility model;

[0025] Description of reference numerals:

[0026] 1. Flow valve; 11. Internal thread; 2. External threaded pipe; 21. Sealing gasket; 22. Groove; 23. Cavity column; 24. Spring; 25. T-type pull rod; 3. Connecting thread head; 4. Sealing ring; 5. Connecting pipe; 51. Positioning ring; 52. U-shaped groove. DETAILED DESCRIPTION

[0027] 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 in 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.

[0028] See also Figures 1 to 4 , the utility model provides a technical solution:

[0029] A flow valve comprises a flow valve 1, wherein externally threaded tubes 2 are rotatably mounted at both ends of the flow valve 1; a plurality of grooves 22 are evenly provided at one end of the externally threaded tube 2 away from the flow valve 1, a cavity column 23 is rotatably mounted inside the groove 22, a T-type tie rod 25 is slidably mounted inside the cavity column 23, and the end of the T-type tie rod 25 away from the flow valve 1 is located outside the cavity column 23; a connecting tube 5 is installed inside the externally threaded tube 2, a positioning ring 51 is fixedly mounted on the circumferential surface of the connecting tube 5, and a U-shaped groove 52 is provided on the circumferential surface of the positioning ring 51; the end of the T-type tie rod 25 away from the flow valve 1 can be mounted inside the U-shaped groove 52; internal threads 11 are provided inside the two ends of the flow valve 1; connecting thread heads 3 are fixedly mounted on the adjacent ends of the externally threaded tube 2, and the connecting thread heads 3 can be rotatably mounted on the two ends of the flow valve 1; a spring 24 is fixedly mounted inside the cavity column 23.

[0030] By adopting the above technical scheme, the existing flow regulating valve and pipeline connection are mostly fixedly connected by multiple bolts. This connection method needs to spend a long time to tighten and fix the bolts during use, which is time-consuming and labor-intensive. Therefore, the traditional connection methods on the market are more cumbersome in the later repair and maintenance process. Therefore, in view of such situations, the structure of the present device is as follows; it includes a flow valve 1, and the two ends of the flow valve 1 are installed with the same structure. Only the left end is introduced again. The left end of the flow valve 1 is provided with an internal thread 11, and a connecting thread head 3 is rotatably installed inside the left end of the flow valve 1, wherein the interior of the connecting thread head 3 is a cavity structure and both ends are in an open state. Secondly, the left end of the connecting thread head 3 is fixedly installed with an external threaded pipe 2. In order to The outer threaded tube 2 is also a hollow structure with both ends in an open state. After the connecting threaded head 3 is rotated and connected with the flow valve 1, the external threaded tube 2 can be in a through state with the flow valve 1; in addition, four grooves 22 are evenly provided at the end of the external threaded tube 2 away from the flow valve 1, and a cavity column 23 is rotatably installed inside the groove 22, and the end of the cavity column 23 away from the flow valve 1 is in an open state. Secondly, two springs 24 are fixedly installed inside the cavity column 23, and the other end of the spring 24 is fixedly connected to a T-shaped pull rod 25, and the end of the T-shaped pull rod 25 away from the flow valve 1 is located on the outside of the cavity column 23. Finally, a connecting tube 5 is slidably installed inside the external threaded tube 2, and a positioning ring 51 is fixedly installed on the outer circumferential surface of the connecting tube 5, and four U-shaped grooves 52 are evenly provided on the circumferential surface of the positioning ring 51.

[0031] When in use, the connecting thread head 3 is rotated and connected with the flow valve 1, and the connecting pipe 5 is slidably installed in the interior of the external threaded pipe 2, and then the cavity column 23 is rotated. During the rotation of the cavity column 23, the T-type pull rod 25 is pulled. When the cavity column 23 is rotated to a horizontal state, the end of the T-type pull rod 25 away from the flow valve 1 can be rotated to the inside of the U-shaped groove 52, and the leftmost end of the T-type pull rod 25 can be located at the left end of the positioning ring 51. Finally, the sealing ring 4 is rotated, and the left end of the sealing ring 4 is rotated to the circumferential surface of the positioning ring 51, so that the sealing ring 4 can fix and limit the T-type pull rod 25, so that the T-type pull rod 25 will not rotate by itself; with the cooperation of the above-mentioned structure, the situation of manually turning the bolts multiple times to connect the valve to the pipeline can be eliminated. Secondly, with the cooperation of the above-mentioned structure, the place where the pipeline is connected can be sealed multiple times, which avoids leakage at the pipeline connection and saves the number of subsequent repairs and maintenance. The time for subsequent disassembly and replacement saves a lot of construction costs.

[0032] Specifically, Figures 1 to 4As shown, a plurality of grooves 22 are evenly provided at one end of the external threaded tube 2 away from the flow valve 1, a cavity column 23 is rotatably installed inside the groove 22, a T-shaped tie rod 25 is slidably installed inside the cavity column 23, and the end of the T-shaped tie rod 25 away from the flow valve 1 is located on the outside of the cavity column 23, a positioning ring 51 is fixedly installed on the circumferential surface of the connecting tube 5, and the U-shaped groove 52 is provided on the circumferential surface of the positioning ring 51; the end of the T-shaped tie rod 25 away from the flow valve 1 can be installed inside the U-shaped groove 52; a sealing ring 4 is rotatably installed on the circumferential surface of the external threaded tube 2; a sealing gasket 21 is installed at the end of the internal part of the external threaded tube 2 close to the flow valve 1.

[0033] By adopting the above technical scheme, when the traditional valves on the market are connected to the pipeline, most of the openings of the pipeline are directly fitted together, and then under the action of the bolts and the sealing gasket 21, the two openings can be tightly fitted together. However, with the use of time, the sealing gasket 21 at the connection of this connection method will be damaged, which will lead to leakage at the connection. During the use of the utility model, the sealing gasket 21 is installed at the right end of the inside of the external threaded pipe 2. Under the protection of the external threaded pipe 2, the sealing gasket 21 can be prevented from being exposed for a long time, and the cracking of the sealing gasket 21 is avoided, thereby ensuring the good sealing performance; secondly, the right end of the connecting pipe 5 can be installed inside the external threaded pipe 2, further avoiding the occurrence of leakage; compared with the traditional valves on the market, the utility model can ensure that the sealing gasket 21 will not crack under the action of the external threaded pipe 2, thereby avoiding the occurrence of leakage at the connection. Secondly, the right end of the connecting pipe 5 is located inside, further avoiding the occurrence of air leakage, water leakage, etc., saving the subsequent replacement of equipment.

[0034] Working principle: First, the connecting thread head 3 is rotatably connected with the flow valve 1, and the connecting pipe 5 is inserted into the interior of the external threaded pipe 2.

[0035] Then, the cavity column 23 is rotated to a horizontal state, and then the T-shaped tie rod 25 is pulled to make the T-shaped tie rod 25 located inside the U-shaped groove 52 , and the T-shaped tie rod 25 forms a pulling force on the connecting pipe 5 .

[0036] Finally, the sealing ring 4 is rotated, and one end of the sealing ring 4 away from the flow valve 1 is rotated to the circumferential surface of the positioning ring 51 to form a limiting fixation for the T-shaped pull rod 25 .

[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A flow valve, comprising a flow valve (1), characterized in that: Externally threaded pipes (2) are rotatably mounted on both ends of the flow valve (1); A plurality of grooves (22) are evenly formed at one end of the external threaded tube (2) away from the flow valve (1), a cavity column (23) is rotatably mounted inside the groove (22), a T-shaped tie rod (25) is slidably mounted inside the cavity column (23), and the end of the T-shaped tie rod (25) away from the flow valve (1) is located outside the cavity column (23); A connecting pipe (5) is installed inside the externally threaded pipe (2), a positioning ring (51) is fixedly installed on the circumferential surface of the connecting pipe (5), and a U-shaped groove (52) is provided on the circumferential surface of the positioning ring (51); One end of the T-shaped tie rod (25) away from the flow valve (1) can be installed inside the U-shaped groove (52).

2. A flow valve according to claim 1, characterized in that: Internal threads (11) are provided at both ends of the flow valve (1).

3. A flow valve according to claim 1, characterized in that: A connecting thread head (3) is fixedly mounted on each adjacent end of the external threaded pipe (2), and the connecting thread head (3) can be rotatably mounted on both ends of the flow valve (1).

4. A flow valve according to claim 1, characterized in that: A spring (24) is fixedly installed inside the cavity column (23).

5. A flow valve according to claim 4, characterized in that: One end of the spring (24) away from the flow valve (1) is fixedly connected to a T-shaped pull rod (25).

6. A flow valve according to claim 1, characterized in that: The outer diameter of the connecting pipe (5) is consistent with the inner diameter of the externally threaded pipe (2).

7. A flow valve according to claim 1, characterized in that: A sealing ring (4) is rotatably mounted on the circumferential surface of the externally threaded pipe (2).

8. A flow valve according to claim 1, characterized in that: A sealing gasket (21) is installed at one end of the internal portion of the externally threaded pipe (2) close to the flow valve (1).

Images