Combined valve one-way valve and needle valve integrated structure

Abstract

The utility model relates to the technical field of valves, in particular to a combined valve one-way valve and needle valve integrated structure which comprises a needle valve shell and a one-way valve body, the bottom of one side of the needle valve shell is fixedly connected with the one-way valve body, the top of the other side of the needle valve shell is fixedly connected with a water inlet pipe, and the inner side of the needle valve shell is fixedly connected with a partition plate. A valve rod is in threaded connection with the middle of the needle valve shell, and an ejector rod is fixedly connected to the bottom end of the valve rod. The water inlet assembly comprises a water inlet treatment mechanism, the top of the inner side of the water inlet treatment mechanism is fixedly connected with a flow guide mechanism, and the bottom end of the water inlet treatment mechanism is fixedly connected with a blow-off pipe. Water flow can be effectively guided to form vortexes, blockage of debris to filter holes is reduced, the filtering effect is guaranteed, and the filtering efficiency and the blow-off capacity of the combination valve are improved; the service life of the combination valve is prolonged, and the problem that in-valve blockage is caused by accumulation of impurities and chippings on the pipe wall in the fluid conveying process is solved.

Description

A combined valve, check valve, and needle valve integrated structure Technical Field

[0001] This utility model relates to the field of valve technology, specifically to an integrated structure of a combination valve, a check valve, and a needle valve. Background Technology

[0002] In many industrial and civil fields, such as petrochemicals and water supply and drainage systems, valves play a key role in controlling fluid flow. A one-way valve, also known as a check valve or non-return valve, is a type of valve that allows fluid to flow in only one direction and not in the opposite direction. A needle valve is a precision fine-tuning valve with a needle-shaped valve plug. The degree of valve opening and flow rate are controlled by rotating or moving the position of the needle cone.

[0003] In traditional valve systems, check valves and needle valves are often installed independently. This not only increases the complexity of the piping system and raises installation and maintenance costs, but also occupies a significant amount of space. Combining check valves and needle valves can reduce pressure loss and energy consumption in the system, improving overall system efficiency. Simultaneously, precise flow control helps optimize the process and improve product quality, while being more compact than using two separate valves, saving installation space. This is especially important for systems with limited space.

[0004] However, the presence of impurities and debris on the pipe wall is a common problem during fluid transportation. In the existing combined valve inlet mechanism, when impurities in the fluid directly impact the check valve, debris tends to accumulate inside the check valve, causing blockage and affecting the service life of the combined valve. Therefore, to address the above problem, a combined valve check valve needle valve integrated structure is proposed. Summary of the Invention

[0005] The purpose of this utility model is to provide an integrated structure of a combination valve, check valve, and needle valve to solve the problem that the presence of impurities and debris on the pipe wall is a common problem during fluid transportation. In the existing combination valve inlet mechanism, when impurities in the fluid directly impact the check valve, debris easily accumulates inside the check valve, causing blockage and affecting the service life of the combination valve.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] An integrated structure of a combination valve, a one-way valve, and a needle valve includes a needle valve housing and a one-way valve body. The one-way valve body is fixedly connected to the bottom of one side of the needle valve housing, and a water inlet pipe is fixedly connected to the top of the other side of the needle valve housing. A partition is fixedly connected to the inner side of the needle valve housing, and a water inlet assembly is fixedly connected to the middle of the partition. A valve stem is threadedly connected to the middle of the needle valve housing, and a top rod is fixedly connected to the bottom end of the valve stem. The water inlet assembly includes a water inlet treatment mechanism, a flow guiding mechanism is fixedly connected to the top of the inner side of the water inlet treatment mechanism, and a drain pipe is fixedly connected to the bottom end of the water inlet treatment mechanism. The water inlet treatment mechanism includes an installation pipe with filter holes on its surface. A support base is fixedly connected to the middle of the inner side of the installation pipe, and a pressure rod is slidably connected to the middle of the support base. A support spring is sleeved on the outer side of the pressure rod, and a sealing block is fixedly connected to the bottom end of the pressure rod. Drainage grooves are provided on both sides of the sealing block.

[0008] As a further optimization of this utility model, the flow guiding mechanism includes a connecting sleeve, a connecting groove and a spiral groove are provided in the middle of the connecting sleeve, the connecting groove is located at the center of the connecting sleeve, and the number of spiral grooves is set to several, which are equidistantly arranged in a circle on the outside of the connecting groove, and the bottom end of the spiral groove corresponds to the inner side of the water inlet treatment mechanism.

[0009] As a further optimization of this utility model, the filter holes are provided in a number of equidistant rings centered on the mounting tube. The two sides of the support base are hollow structures. The upper surface of the support base is fixedly connected to the bottom end of the support spring, and the top end of the support spring is fixedly connected to the top of the pressure rod.

[0010] As a further optimization of this utility model, the following features are provided: the drain pipe and the water inlet treatment mechanism are located on the same central axis; the inner side of the water inlet treatment mechanism is connected to the inner side of the drain pipe; the drain pipe is located at the center of the bottom end of the needle valve housing; the drain pipe is fixedly connected to the needle valve housing; and a sealing seat is threadedly connected to the bottom end of the inner side of the drain pipe.

[0011] As a further optimization of this utility model, the sewage discharge trough is located on the top of the sealing block, and the two sewage discharge troughs are arranged symmetrically about the pressure rod. The inner side of the sewage discharge trough is a sloping structure.

[0012] As a further optimization of this utility model, the one-way valve body is located below the partition, the water inlet pipe is located above the partition, and the upper surface of the partition has an arc-shaped structure.

[0013] As a further optimization of this utility model, the valve stem is located above the water inlet treatment mechanism, the push rod is located at the center of the bottom end of the valve stem, and the push rod and the pressure rod are located on the same central axis.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] In this invention, the water inlet assembly, water treatment mechanism, flow guiding mechanism, and push rod effectively guide the water flow to form a vortex, reducing the blockage of filter holes by debris and ensuring filtration effect. At the same time, during the valve stem closing process, the pressure rod and support spring work together to push the sealing block down, allowing the drain tank to discharge debris from the water treatment mechanism and preventing blockage inside the valve. This structure not only improves the filtration efficiency and sewage discharge capacity of the combined valve, but also extends the service life of the combined valve and solves the problem of valve blockage caused by the accumulation of impurities and debris on the pipe wall during fluid transportation. Attached Figure Description

[0016] Figure 1 is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 is a cross-sectional structural diagram of this utility model;

[0018] Figure 3 is an exploded structural diagram of the water inlet component of this utility model;

[0019] Figure 4 is a schematic diagram of the internal structure of the water inlet treatment mechanism of this utility model;

[0020] Figure 5 is a schematic diagram of the pressure rod of this utility model;

[0021] Figure 6 is a cross-sectional structural diagram of the flow guiding mechanism of this utility model.

[0022] In the diagram: 1. Needle valve housing; 2. Check valve body; 3. Inlet pipe; 4. Baffle plate;

[0023] 5. Water inlet assembly; 51. Water inlet treatment mechanism; 52. Flow guiding mechanism; 53. Sewage pipe; 54. Sealing seat;

[0024] 6. Valve stem;

[0025] 7. Top rod;

[0026] 511. Installation pipe; 512. Filter hole; 513. Support base; 514. Pressure rod; 515. Support spring; 516. Sealing block; 517. Drainage trough;

[0027] 521. Connecting sleeve; 522. Connecting groove; 523. Spiral groove. Detailed Implementation

[0028] 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.

[0029] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0030] Please refer to Figures 1-6. This utility model provides a technical solution:

[0031] A combined valve, one-way valve, and needle valve integrated structure includes a needle valve housing 1 and a one-way valve body 2. The one-way valve body 2 is fixedly connected to the bottom of one side of the needle valve housing 1, and an inlet pipe 3 is fixedly connected to the top of the other side of the needle valve housing 1. A partition 4 is fixedly connected to the inner side of the needle valve housing 1, and an inlet assembly 5 is fixedly connected to the middle of the partition 4. A valve stem 6 is threadedly connected to the middle of the needle valve housing 1, and a top rod 7 is fixedly connected to the bottom end of the valve stem 6. The inlet assembly 5 includes an inlet treatment mechanism 51, a flow guiding mechanism 52 is fixedly connected to the top of the inner side of the inlet treatment mechanism 51, and a drain pipe 53 is fixedly connected to the bottom end of the inlet treatment mechanism 51. The inlet treatment mechanism 51 includes an installation pipe 511, and filter holes 512 are opened on the surface of the installation pipe 511. A filter hole 512 is fixedly connected to the middle of the inner side of the installation pipe 511. A support base 513 is fixedly connected, and a pressure rod 514 is slidably connected to the middle of the support base 513. The vertical cross-section of the pressure rod 514 is "T" shaped. A support spring 515 is sleeved on the outside of the pressure rod 514. A sealing block 516 is fixedly connected to the bottom end of the pressure rod 514. Both sides of the sealing block 516 are provided with drain grooves 517. The top rod 7 located below will apply pressure to the top of the pressure rod 514. Under the pressure of the pressure rod 514, the support spring 515 is compressed downward, and the sealing block 516 is also pushed by the pressure rod 514 to make the drain grooves 517 downward. This allows the water to discharge the debris in the water treatment mechanism 51 through the drain grooves 517 under the action of the vortex during the process of the valve rod 6 moving down to close.

[0032] As a further implementation of this solution, the flow guiding mechanism 52 includes a connecting sleeve 521. The connecting sleeve 521 has a connecting groove 522 and a spiral groove 523 in the middle. The connecting groove 522 is located at the center of the connecting sleeve 521. The spiral groove 523 is arranged in a circular pattern with equal spacing on the outside of the connecting groove 522. The bottom end of the spiral groove 523 corresponds to the inner side of the water inlet treatment mechanism 51. The filter holes 512 are arranged in a ring pattern with equal spacing around the installation pipe 511. The two sides of the support base 513 are hollow structures, which can reduce the obstruction of water flow. The upper surface of the support base 513 is fixedly connected to the bottom end of the support spring 515. The top end of the support spring 515 is fixedly connected to the top of the pressure rod 514. The support spring 515 is a rust-resistant metal spring with high elasticity and can resist the impact of water flow under natural conditions.

[0033] As a further implementation of this solution, the drain pipe 53 and the water inlet treatment mechanism 51 are located on the same central axis. The inner side of the water inlet treatment mechanism 51 is connected to the inner side of the drain pipe 53. The drain pipe 53 is located at the center of the bottom end of the needle valve housing 1. The drain pipe 53 is fixedly connected to the needle valve housing 1. The bottom end of the inner side of the drain pipe 53 is threaded with a sealing seat 54. This arrangement further reduces the possibility of water leakage.

[0034] As a further implementation of this solution, the sewage trough 517 is opened on the top of the sealing block 516. The two sewage troughs 517 are symmetrically arranged with the pressure rod 514 as the center. The inner side of the sewage trough 517 is a sloping structure. This arrangement makes the sewage flow gradually increase as the sealing block 516 moves down.

[0035] As a further implementation of this scheme, the one-way valve body 2 is located below the partition 4, and the water inlet pipe 3 is located above the partition 4. The upper surface of the partition 4 has an arc-shaped structure, which makes it easy for the water to be stored to be concentrated in the center of the partition 4.

[0036] As a further implementation of this scheme, the valve stem 6 is located above the water inlet treatment mechanism 51, and the push rod 7 is located at the center of the bottom end of the valve stem 6. The push rod 7 and the pressure rod 514 are located on the same central axis. This arrangement ensures the stability of the pressure applied by the push rod 7 to the pressure rod 514.

[0037] Workflow: The one-way valve body 2 is installed at the bottom of one side of the needle valve housing 1, and the one-way valve body 2 and the inlet pipe 3 are not at the same height to ensure the normal operation of the one-way valve body 2. The combined valve, one-way valve, and needle valve integrated structure is installed in the pipeline system. The installation position and direction are determined according to actual needs. One end of the inlet pipe 3 is connected to the external water injection pipe to ensure a tight connection and no risk of leakage. During use, the water flow from the inlet pipe 3 will first enter the upper part of the baffle 4 inside the cavity of the inlet pipe 3. The water flow enters the inlet assembly 5 along the center of the baffle 4. During this process, the water flow first contacts the guide mechanism 52. The connecting sleeve 521 has a spiral groove 523 and a connecting groove 522 in the middle. The water flow follows the spiral groove 523. The water flows, forming a vortex, and enters the inner side of the installation pipe 511, where it is filtered through the filter holes 512. The advantage of this is that the vortex-forming water flow reduces the clogging of the filter holes 512 by debris in the water, helping to ensure the filtration effect of the filter holes 512. The filtered water flows through the bottom of the baffle 4 into the one-way valve body 2 and then into the next delivery pipe. When it is necessary to stop the water flow, first unscrew the sealing seat 54 and rotate the valve stem 6, so that the bottom end of the valve stem 6 blocks the water flow into the inlet assembly 5, cutting off the water flow. During this process, the valve stem 6... The push rod 7 moves downward, and the push rod 7 at the bottom will apply pressure to the top of the pressure rod 514. Under the pressure of the pressure rod 514, the support spring 515 is compressed downward, and the sealing block 516 is also pushed by the pressure rod 514 to make the drain trough 517 downward. This allows the water flow to discharge the debris in the water inlet treatment mechanism 51 through the drain trough 517 under the action of the vortex during the downward closing of the valve rod 6. When the bottom end of the valve rod 6 is completely pressed against the top end of the water inlet treatment mechanism 51, the sewage discharge operation stops.

[0038] 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 combined valve, check valve, and needle valve integrated structure, comprising a needle valve housing (1) and a check valve body (2), characterized in that: A one-way valve body (2) is fixedly connected to the bottom of one side of the needle valve housing (1), and an inlet pipe (3) is fixedly connected to the top of the other side of the needle valve housing (1). A partition (4) is fixedly connected to the inner side of the needle valve housing (1), and an inlet assembly (5) is fixedly connected to the middle of the partition (4). A valve stem (6) is threadedly connected to the middle of the needle valve housing (1), and a top rod (7) is fixedly connected to the bottom end of the valve stem (6). The inlet assembly (5) includes an inlet treatment mechanism (51), and a flow guiding mechanism (52) is fixedly connected to the top of the inner side of the inlet treatment mechanism (51). (51) has a drain pipe (53) fixedly connected to its bottom end; the water inlet treatment mechanism (51) includes an installation pipe (511), the surface of which is provided with filter holes (512), a support base (513) is fixedly connected to the middle of the inner side of the installation pipe (511), a pressure rod (514) is slidably connected to the middle of the support base (513), a support spring (515) is sleeved on the outer side of the pressure rod (514), a sealing block (516) is fixedly connected to the bottom end of the pressure rod (514), and drain grooves (517) are provided on both sides of the sealing block (516).

2. The integrated structure of a combined valve, check valve, and needle valve according to claim 1, characterized in that: The flow guiding mechanism (52) includes a connecting sleeve (521). The connecting sleeve (521) has a connecting groove (522) and a spiral groove (523) in the middle. The connecting groove (522) is located at the center of the connecting sleeve (521). The spiral groove (523) is arranged in a circular pattern at equal intervals on the outside of the connecting groove (522). The bottom end of the spiral groove (523) corresponds to the inner side of the water inlet treatment mechanism (51).

3. The integrated structure of a combined valve, check valve, and needle valve according to claim 1, characterized in that: The number of filter holes (512) is set to a certain number, and the filter holes (512) are arranged in a ring with equal distances around the mounting tube (511). The two sides of the support base (513) are hollow structures. The upper surface of the support base (513) is fixedly connected to the bottom end of the support spring (515), and the top end of the support spring (515) is fixedly connected to the top of the pressure rod (514).

4. The integrated structure of a combined valve, check valve, and needle valve according to claim 1, characterized in that: The drain pipe (53) and the water inlet treatment mechanism (51) are located on the same central axis. The inner side of the water inlet treatment mechanism (51) is connected to the inner side of the drain pipe (53). The drain pipe (53) is located at the center of the bottom end of the needle valve housing (1). The drain pipe (53) is fixedly connected to the needle valve housing (1). The bottom end of the inner side of the drain pipe (53) is threaded with a sealing seat (54).

5. The integrated structure of a combined valve, check valve, and needle valve according to claim 1, characterized in that: The drain trough (517) is located on the top of the sealing block (516). The two drain troughs (517) are arranged symmetrically about the pressure rod (514) and the inner side of the drain trough (517) is a sloping structure.

6. The integrated structure of a combined valve, check valve, and needle valve according to claim 1, characterized in that: The one-way valve body (2) is located below the partition (4), the water inlet pipe (3) is located above the partition (4), and the upper surface of the partition (4) has an arc-shaped structure.

7. The integrated structure of a combined valve, check valve, and needle valve according to claim 1, characterized in that: The valve stem (6) is located above the water inlet treatment mechanism (51), and the top rod (7) is located at the center of the bottom end of the valve stem (6). The top rod (7) and the pressure rod (514) are located on the same central axis.

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