Compact one-way throttle valve

Abstract

The utility model discloses a compact one-way throttle valve, and relates to the technical field of one-way throttle valves. The compact one-way throttle valve comprises a valve body, a closure assembly is arranged in the valve body, a connecting assembly is arranged on the valve body, a control assembly is arranged at the top of the valve body, the closure assembly comprises a piston arranged in the valve body, and a first sealing ring and a second sealing ring are fixedly installed on one side of the piston. The bottom of the first sealing ring and the bottom of the second sealing ring are attached to the inner bottom wall of the valve body, one end of the piston is fixedly provided with a reset spring, the other side of the valve body is in threaded connection with a cover body, and one side of the inner wall of the cover body is in threaded connection with a bearing. And meanwhile, the piston and the reset spring can be conveniently replaced, the phenomena that the sealing performance between the piston and the valve body becomes poor and the reset performance of the reset spring becomes poor due to long-time use are avoided, and therefore the effect of the sealing performance of the throttling valve is completely eradicated.

Description

TECHNICAL FIELD

[0001] The utility model relates to one -way throttle valve technical field, concretely is a compact one -way throttle valve. BACKGROUND

[0002] One -way throttle valve is the common valve type in fluid control field, is the simple flow control valve that combines in parallel of throttle valve and one -way valve, when oil liquid flows in one direction, it plays the role of throttle valve, controls fluid flow by changing throttle section or throttle length, when oil liquid reverses, it plays the role of one -way valve, allows oil liquid to pass freely, the prior art, patent announcement number CN222436721U discloses a compact one -way throttle valve, relates to hydraulic throttle valve technical field, the utility model discloses: left valve block and right valve block, valve core, spring and sealing ring, left valve block and right valve block between the sealing ring is equipped with, left valve hole and right valve hole form valve core cavity together, right valve hole is equipped with the conical surface, under the pressure of spring, valve core right -end conical surface and right valve hole's conical surface closely adhere, the outer surface of valve core is opened with the section, the section and left valve hole inner surface form arc hole, the conical surface on valve core is opened with the throttle groove, the throttle groove and right valve hole conical surface form throttle hole, left valve block step hole right side and valve core left side are equipped with spring, the utility model discloses left valve block and right valve block form valve core cavity together, the section on valve core constructs arc hole, avoids the machining of complex cavity and outer surface of valve body, reduces the processing difficulty, reduces the number of parts, reduces the cost, valve core adopts spring reset, guarantees the reliable action of valve.

[0003] For the related technology in the above, the inventor believes that the following defects exist: in the actual application process, due to the long-term use of the throttle valve, the parts will be worn out, if the valve core inside the valve body cannot be replaced during use, the sealing performance of the throttle valve will be affected during use, which will cause the sealing performance of the throttle valve to be poor, affecting the normal use of the valve, therefore, we propose a compact one -way throttle valve to solve the above problems. UTILITY MODEL CONTENTS

[0004] In view of the deficiencies of the prior art, the utility model provides a compact one -way throttle valve, which solves the problems in the above background art.

[0005] To achieve the above purpose, the utility model realizes the following technical scheme: a compact one -way throttle valve, comprising a valve body, a flow blocking assembly is arranged in the valve body, a connecting assembly is arranged on the valve body, and a control assembly is arranged on the top of the valve body.

[0006] The intercepting assembly includes a piston arranged in the valve body, one side of the piston is fixedly provided with a first sealing ring and a second sealing ring, the bottom of the first sealing ring and the second sealing ring is attached to the inner bottom wall of the valve body, one end of the piston is fixedly provided with a return spring, the other side of the valve body is threadedly connected with a cover body, the inner wall of the cover body is threadedly connected with a bearing, the inner ring of the bearing is fixedly connected with one end of the return spring, the arranged intercepting assembly can realize the effect of non-return intercepting, and the piston and the return spring can be conveniently replaced, the phenomenon that the sealing performance between the piston and the valve body is deteriorated and the return performance of the return spring is deteriorated due to long-time use is avoided, and thus the effect of affecting the sealing performance of the throttle valve is eliminated.

[0007] The connecting assembly includes a water inlet pipe communicated with the bottom of the valve body, the water inlet pipe is sleeved with a T-shaped ring, the surface of the valve body is communicated with a water outlet pipe, one end of the water outlet pipe is communicated with a threaded pipe in a welded manner, the connecting assembly is arranged, so that the connection between the throttle valve and the pipeline is facilitated during use, and the sealing performance between the throttle valve and the connecting pipeline during connection can be improved.

[0008] The control assembly includes a screw rod inserted into the cover body, the screw rod is embedded with a ball at one end in the valve body, one end of the piston is fixedly provided with an extrusion plate, the control assembly is arranged, so that the flow of the throttle valve can be controlled during use, the throttle valve can be completely closed when not in use, and the staff can operate and use according to different conditions.

[0009] Preferably, the outer ring of the bearing is fixedly connected with one side of the cover body, and the outer ring of the bearing is fixedly connected with one side of the cover body in a threaded connection manner, one side of the cover body is provided with a threaded groove for threaded connection of the outer ring of the bearing, and the bearing is arranged, so that the return spring at one end of the bearing is not affected by the rotating force when the cover body is tightened and loosened, thereby facilitating tightening and loosening of the cover body.

[0010] Preferably, the surface of the cover body is fixedly provided with a rotating strip, the surface of the rotating strip is provided with anti-skid lines, and one side of the rotating strip is attached to one side of the valve body, the rotating strip is arranged, so that the stress area of the cover body is increased when the cover body is loosened and tightened, and the rotation of the cover body is facilitated.

[0011] Preferably, the surface of the water inlet pipe is sleeved with a hexagonal ring, the inner wall of the hexagonal ring is fixedly connected with the surface of the water inlet pipe, the surface of the water inlet pipe is sleeved with a grommet, one side of the grommet is attached to one side of the hexagonal ring, and one end of the surface of the water outlet pipe is provided with a threaded groove, the hexagonal ring is arranged, so that the rotating tightening of the hexagonal ring by a wrench is facilitated during connection and installation, and the grommet is arranged, so that the sealing performance of the water inlet pipe is improved during connection.

[0012] Preferably, the cover has a screw hole for the screw to pass through, the screw hole is threaded to the screw, and the positions of the extrusion plate and the ball are corresponding. When the ball needs to press the piston on the extrusion plate during rotation, the screw can still rotate normally.

[0013] Preferably, a rotating block is fixedly installed at one end of the screw located outside the valve body. A slot is formed on one side of the rotating block, and anti-slip texture is formed on the surface of the rotating block. The rotating block and slot can be used to manually rotate the screw during use, and can also be rotated with a flathead screwdriver.

[0014] Preferably, when the valve body is not in use, one side of the first sealing ring and the second sealing ring are both in contact with one side of the inner wall of the valve body, the surface of the piston is slidably connected to the inner wall of the valve body, and the valve body is adapted to the piston. The sealing between the bottom of the piston and the valve body is increased by the first sealing ring and the second sealing ring.

[0015] Beneficial effects

[0016] This invention provides a compact one-way throttle valve. Compared with the prior art, it has the following advantages:

[0017] This compact one-way throttle valve, through its designed shut-off component, achieves a backflow prevention and shut-off effect. It also facilitates the replacement of the piston and return spring, preventing the deterioration of the seal between the piston and valve body and the deterioration of the return spring's reset performance caused by prolonged use, thereby eliminating any impact on the throttle valve's sealing performance.

[0018] Meanwhile, the connection components facilitate the connection between the throttle valve and the pipeline during use, and also increase the sealing between the throttle valve and the connecting pipeline during connection.

[0019] In addition, the flow rate of the throttle valve can be controlled during use through the set control components, and the throttle valve can be completely closed when it is not in use, making it convenient for staff to operate according to different situations. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0021] Figure 2 This is a three-dimensional sectional view of the present invention.

[0022] Figure 3 This utility model Figure 2 Enlarged schematic diagram of the structure at point A in the middle;

[0023] Figure 4 This utility model Figure 2 Enlarged schematic diagram of the structure at point B.

[0024] In the diagram: 1. Valve body; 2. Flow control assembly; 200. Piston; 201. First sealing ring; 202. Second sealing ring; 203. Return spring; 204. Cover; 205. Bearing; 206. Rotating bar; 3. Connecting assembly; 300. Inlet pipe; 301. T-ring; 302. Outlet pipe; 303. Threaded pipe; 304. Hexagonal ring; 305. Washer ring; 4. Control assembly; 400. Screw; 401. Ball bearing; 402. Extrusion plate; 403. Rotating block. Detailed Implementation

[0025] 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.

[0026] Please see Figure 1 - Figure 4 This utility model provides a technical solution: a compact one-way throttle valve, including a valve body 1, a flow-blocking component 2 inside the valve body 1, a connecting component 3 on the valve body 1, and a control component 4 on the top of the valve body 1.

[0027] The flow-stopping assembly 2 includes a piston 200 disposed inside the valve body 1. A first sealing ring 201 and a second sealing ring 202 are fixedly installed on one side of the piston 200. The bottoms of the first sealing ring 201 and the second sealing ring 202 are in contact with the inner bottom wall of the valve body 1. A return spring 203 is fixedly installed on one end of the piston 200. A cover 204 is threadedly connected to the other side of the valve body 1. A bearing 205 is threadedly connected to one side of the inner wall of the cover 204. The inner ring of the bearing 205 is fixedly connected to one end of the return spring 203. The flow-stopping assembly 2 can achieve the effect of preventing backflow and stopping flow. It also facilitates the replacement of the piston 200 and the return spring 203, avoiding the phenomenon that the sealing performance between the piston 200 and the valve body 1 deteriorates and the return performance of the return spring 203 deteriorates due to long-term use, thereby eliminating the effect of affecting the sealing performance of the throttle valve.

[0028] The connecting component 3 includes an inlet pipe 300 connected to the bottom of the valve body 1. A T-shaped ring 301 is fitted inside the inlet pipe 300. An outlet pipe 302 is connected to one side of the surface of the valve body 1. One end of the outlet pipe 302 is connected to a threaded pipe 303 by welding. The connecting component 3 facilitates the connection between the throttle valve and the pipeline during use, and also increases the sealing between the throttle valve and the connecting pipeline during connection.

[0029] The control component 4 includes a screw 400 inserted into the cover 204. One end of the screw 400 located inside the valve body 1 is inlaid with a ball 401. One end of the piston 200 is fixedly installed with a compression plate 402. Through the control component 4, the flow rate of the throttle valve can be controlled during use. When not in use, the throttle valve can be completely closed, which is convenient for the staff to operate according to different situations.

[0030] See Figure 2 and Figure 4 The outer ring of the bearing 205 is fixedly connected to one side of the cover 204, and the outer ring of the bearing 205 is fixedly connected to one side of the cover 204 by means of threaded connection. A threaded groove is provided on one side of the cover 204 for threaded connection of the outer ring of the bearing 205. The function of the bearing 205 is that when the cover 204 is tightened and loosened, the return spring 203 at one end of the bearing 205 is not affected by the rotational force, thereby facilitating the tightening and loosening of the cover 204.

[0031] See Figure 2 and Figure 4 A rotating strip 206 is fixedly installed on the surface of the cover 204. The surface of the rotating strip 206 is provided with anti-slip texture, and one side of the rotating strip 206 is attached to one side of the valve body 1. The rotating strip 206 increases the force-bearing area of ​​the cover 204 when loosening and tightening the cover 204, making it easier for the cover 204 to rotate.

[0032] See Figure 1 A hexagonal ring 304 is fitted on the surface of the inlet pipe 300. The inner wall of the hexagonal ring 304 is fixedly connected to the surface of the inlet pipe 300. A washer 305 is fitted on the surface of the inlet pipe 300. One side of the washer 305 fits against one side of the hexagonal ring 304. A threaded groove is opened at one end of the surface of the outlet pipe 302. The hexagonal ring 304 is provided so that it can be turned and tightened with a wrench during connection and installation. The washer 305 is provided to increase the sealing of the inlet pipe 300 during connection.

[0033] See Figure 2 and Figure 4 The cover 204 has a screw hole for the screw 400 to pass through. The screw hole is threaded to the screw 400, and the positions of the extrusion plate 402 and the ball 401 are corresponding. When the ball 401 needs to extrude the piston 200 on the extrusion plate 402 during rotation, the screw 400 can still rotate normally.

[0034] See Figure 2 and Figure 3When the valve body 1 is not connected for use, one side of the first sealing ring 201 and the second sealing ring 202 are both in contact with one side of the inner wall of the valve body 1. The surface of the piston 200 is slidably connected to the inner wall of the valve body 1, and the valve body 1 is adapted to the piston 200. The sealing between the bottom of the piston 200 and the valve body 1 is increased by the first sealing ring 201 and the second sealing ring 202.

[0035] See Figure 1 and Figure 2 A rotating block 403 is fixedly installed at one end of the screw 400 outside the valve body 1. A slot is provided on one side of the rotating block 403, and anti-slip texture is provided on the surface of the rotating block 403. The rotating block 403 and the slot are provided so that the screw 400 can be rotated manually during use, and can also be rotated with a flathead screwdriver.

[0036] During operation, when a component needs to be replaced, loosen the cover 204 to separate it from the valve body 1. Then, use calipers to clamp the outer ring of the bearing 205, separating the bearing 205 from the threaded groove on the cover 204. Next, tighten the new bearing 205, which includes a piston 200 and a return spring 203, onto the cover 204. Apply lubricating oil to the surface of the piston 200, insert the piston 200 into the valve body 1, and tighten the cover 204. Then, use calipers or... The wrench compatible with the hexagonal ring 304 is used to thread the inlet pipe 300 to one end of the liquid pipe to be connected. Then, the other pipe connected to the outlet pipe 302 is connected to the pipe using a compatible direct pipe connector. When there is liquid pressure at the inlet, the liquid will pressurize the piston 200, thereby overcoming the elastic force of the return spring 203. The piston 200 moves upward, and the cavity of the valve body 1 below the piston 200 is connected to one end of the outlet pipe 302. The liquid enters the outlet pipe 302 through the inlet pipe 300.

[0037] When liquid flow control is required, tighten the screw 400 so that the ball 401 at the bottom of the screw 400 presses against the top of the extrusion plate 402, thereby positioning the piston 200 in the appropriate position and partially blocking the opening of the outlet pipe 302, thereby achieving flow control.

[0038] When it is necessary to completely close the valve body 1, tighten the screw 400 so that the ball 401 at one end of the screw 400 presses against the extrusion plate 402 until the bottom of the first sealing ring 201 and the second sealing ring 202 are in contact with the inner bottom wall of the valve body 1. At the same time, the side of the piston 200 also completely blocks the opening of the water outlet pipe 302.

[0039] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

Claims

1. A compact one-way throttle valve, comprising a valve body (1), characterized in that: The valve body (1) is provided with a flow-blocking component (2) inside, a connecting component (3) is provided on the valve body (1), and a control component (4) is provided on the top of the valve body (1). The flow-blocking assembly (2) includes a piston (200) disposed inside the valve body (1). A first sealing ring (201) and a second sealing ring (202) are fixedly installed on one side of the piston (200). The bottom of the first sealing ring (201) and the second sealing ring (202) are in contact with the inner bottom wall of the valve body (1). A return spring (203) is fixedly installed on one end of the piston (200). A cover (204) is threadedly connected to the other side of the valve body (1). A bearing (205) is threadedly connected to one side of the inner wall of the cover (204). The inner ring of the bearing (205) is fixedly connected to one end of the return spring (203). The connecting assembly (3) includes an inlet pipe (300) connected to the bottom of the valve body (1), a T-shaped ring (301) is sleeved inside the inlet pipe (300), an outlet pipe (302) is connected to one side of the surface of the valve body (1), and a threaded pipe (303) is connected to one end of the outlet pipe (302) by welding. The control component (4) includes a screw (400) inserted into the cover (204), with a ball (401) embedded at one end of the screw (400) inside the valve body (1), and a compression plate (402) fixedly installed at one end of the piston (200).

2. A compact one-way throttle valve according to claim 1, characterized in that: The outer ring of the bearing (205) is fixedly connected to one side of the cover (204), and the outer ring of the bearing (205) is fixedly connected to one side of the cover (204) by means of threaded connection. A threaded groove is provided on one side of the cover (204) for threaded connection of the outer ring of the bearing (205).

3. A compact one-way throttle valve according to claim 1, characterized in that: A rotating bar (206) is fixedly installed on the surface of the cover (204). The surface of the rotating bar (206) is provided with anti-slip texture, and one side of the rotating bar (206) is in contact with one side of the valve body (1).

4. A compact one-way throttle valve according to claim 1, characterized in that: The surface of the water inlet pipe (300) is fitted with a hexagonal ring (304), the inner wall of the hexagonal ring (304) is fixedly connected to the surface of the water inlet pipe (300), a gasket (305) is fitted on the surface of the water inlet pipe (300), one side of the gasket (305) is fitted with one side of the hexagonal ring (304), and a threaded groove is opened at one end of the surface of the water outlet pipe (302).

5. A compact one-way throttle valve according to claim 1, characterized in that: The cover (204) has a screw hole for the screw (400) to pass through. The screw hole is threadedly connected to the screw (400), and the extrusion plate (402) and the ball (401) are positioned correspondingly.

6. A compact one-way throttle valve according to claim 1, characterized in that: A rotating block (403) is fixedly installed at one end of the screw (400) outside the valve body (1). A slot is opened on one side of the rotating block (403), and anti-slip texture is opened on the surface of the rotating block (403).

7. A compact one-way throttle valve according to claim 1, characterized in that: When the valve body (1) is not in use, one side of the first sealing ring (201) and the second sealing ring (202) are both in contact with one side of the inner wall of the valve body (1), the surface of the piston (200) is slidably connected to the inner wall of the valve body (1), and the valve body (1) and the piston (200) are adapted to each other.

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