A small pressure regulating valve

Abstract

The utility model relates to a small pressure regulating valve, comprising a pressure regulating valve, wherein the lower end of the pressure regulating valve is sealed and connected to a manifold, and a pressure regulating gauge is arranged on the left side of the pressure regulating valve, and the outer side of the pressure regulating gauge is wrapped and connected to a rectangular protective block, and the front end vertex of the left side and the rear end vertex of the right side of the rectangular protective block are both provided with connecting holes, and screw fixings are arranged in the connecting holes, and the lower end of the screw fixings is fixedly connected to the manifold, and the pressure regulating valve and the pressure regulating gauge are combined by setting the manifold, and an air inlet channel and an air outlet channel are opened in the manifold, and then the air outlet holes and the air inlet holes are used to connect the air inlet pipe and the air outlet pipe, so as to facilitate the sealing connection, and the structure is compact, and a sealing ball is arranged to facilitate the processing of the air circulation channel inside the manifold, and the processing cost is low, and a filter mesh ring block is arranged to facilitate the filtering of the internal pressure regulating airflow and extend the service life.

Description

Technical Field

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

[0002] A pressure regulating valve is a device that can automatically adjust the pressure in a pipeline system. Its main function is to adjust the size of the exhaust hole cross-sectional area when the input pressure changes, automatically adjust the system output pressure and keep it within a stable range. The pressure regulating valve usually consists of a valve body, a valve cover, an adjusting spring, an adjusting nut, a main valve with a piston, and an auxiliary valve.

[0003] Patent No. CN202322302203.3 discloses a pressure regulating valve, which is provided with a pressure regulating valve body, the pressure regulating valve body including an inlet joint, a valve body, an adjusting screw, a valve cover, a first valve seat, a second valve seat and a third valve seat, the rear end of the inlet joint is provided with a first O-ring, a first valve seat and a sphere, the side of the sphere is provided with a first valve stem, a second O-ring and a retaining ring, the outer end of the first valve stem is provided with a first locking nut and a first handle, the pressure regulating valve integrates a ball valve, a high pressure regulating Valve, a relief valve, three valves, in the hydraulic pipeline system provide convenient assembly for the system, save pipelines and space, relatively save the cost of finished products, the pressure regulating valve is designed to connect all the overpressure oil discharge and pressure relief oil discharge of the passages to the same oil discharge port, which is convenient for medium recovery and pipeline saving, and the valve group can be applied to the ultra-high pressure field, expanding the scope of application, but the pressure regulating valve has the following problems: first, the structure volume is too large and the cost is high, and secondly, air filtration cannot be achieved during the pressure regulation process, and the airflow steering sealing is poor. Utility Model Content

[0004] The purpose of the utility model is to address the deficiencies of the prior art by arranging a manifold, combining a pressure regulating valve and a pressure regulating gauge, opening an air inlet channel and an air outlet channel in the manifold, and then utilizing the air outlet holes and the air inlet holes to connect the air inlet pipe and the air outlet pipe externally, which is convenient for sealing connection and has a compact structure. A sealing ball is arranged to facilitate the processing of the air circulation channel inside the manifold, and the processing cost is low. A filter mesh ring block is arranged to solve the technical problems in the prior art of large structure volume, high cost, inability to achieve air filtration by pressure regulation, and poor sealing.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A small pressure regulating valve, comprising a pressure regulating valve, the lower end of the pressure regulating valve is sealed and connected to a manifold, and a pressure regulating gauge is provided on the left side of the pressure regulating valve, the outer side of the pressure regulating gauge is wrapped and connected to a rectangular protective block, the front end vertex on the left side and the rear end vertex on the right side of the rectangular protective block are both provided with connecting holes, a screw fixing piece is provided in the connecting hole, and the lower end of the screw fixing piece is fixedly connected to the manifold;

[0007] A convergence plate, wherein an air outlet is provided at the front end of the right side of the convergence plate, an air inlet is provided at the rear end of the air outlet, the left side of the air inlet is connected to an air inlet channel, the left side of the air outlet is connected to an air outlet channel, the left side of the air inlet channel is connected to a vertical channel, the front end of the vertical channel is connected to a pressure regulating valve, the left center position of the pressure regulating valve is connected to a convergence channel, a pressure regulating channel is provided at the upper left end of the center position of the convergence channel, and the pressure regulating channel is connected to a pressure regulating gauge.

[0008] As a preferred embodiment, the pressure regulating valve includes an adjusting knob, three identical limit blocks are evenly arranged at the lower end of the adjusting knob, the outer side of the limit block is a raised arc block, and the inner side of the limit block is provided with a rectangular arc block, the inner side of the adjusting knob is provided with a pressure regulating block, the inner lower end of the pressure regulating block is provided with a No. 1 spring, the lower end of the No. 1 spring is provided with a connecting ring block, the center position of the outer side of the connecting ring block is wrapped with a sealing gasket, and the lower end of the connecting ring block is fixedly connected to the pressure regulating main shaft, the outer side of the lower end of the pressure regulating main shaft passes through the circulation block, the circulation block is a T-shaped structure, and a straight circulation groove is provided on the surface of the circulation block, a thread is provided on the outer side of the lower end of the circulation block, and the lower end of the circulation block is threadedly connected to the pressure regulating chamber.

[0009] As a preference, a top pressure block is provided in the pressure regulating chamber, a No. 2 spring is provided at the lower end of the top pressure block, the lower end of the No. 2 spring contacts the inner wall of the lower end of the pressure regulating chamber, and the pressure regulating chamber is a T-shaped structural space.

[0010] As a preferred embodiment, an arc-shaped protrusion block is provided at the lower end of the circulation block near the pressure regulating main shaft, and an air flow hole is opened at the center of the circulation block. The center of the air flow hole is circular, and the pressure regulating main shaft is penetrated through the center of the air flow hole. The left and right sides of the air flow hole are semicircular, and filter mesh ring blocks are provided on the upper end surfaces of the semicircular positions on the left and right sides of the air flow hole. The center of the filter mesh ring block is sealed and movably connected to the pressure regulating main shaft.

[0011] As a preferred embodiment, a blocking ball is provided at the rear end port of the vertical channel, and a No. 2 blocking ball is provided at the leftmost side of the converging channel.

[0012] As another preferred embodiment, connection and mounting holes are provided at the front and rear sides of the center of the busbar, and the connection and mounting holes penetrate the entire busbar.

[0013] Beneficial effects of the utility model:

[0014] (1) In the utility model, a manifold is provided to connect the pressure regulating gauge and the pressure regulating valve, thereby abandoning the traditional vertical pressure regulating valve, saving space, saving costs, and having a more compact structure.

[0015] (2) In the utility model, an air inlet channel, an air outlet channel, a vertical channel, a confluence channel and a pressure regulating channel are arranged. The air inlet channel is connected to the vertical channel. One end of the vertical channel is connected to the pressure regulating valve, and the other end is connected to a sealing ball. In this way, when punching holes inside the confluence plate, the steps are simpler and the cost is lower. A No. 2 sealing ball is also arranged at one end of the confluence channel to connect the confluence channel with the pressure regulating valve and the pressure regulating gauge to ensure the normal pressure regulating function. In addition, the punching process is simple, the sealing effect is good and the cost is low.

[0016] (3) In the utility model, filter mesh ring blocks are arranged on the left and right sides of the air flow hole, and then the pressure regulating main shaft is connected to the center position of the air flow hole. When the No. 1 spring is pressed, the pressure regulating main shaft presses the top pressure block to move downward, so that the air flow in the pressure regulating chamber enters the air flow hole and then enters the straight flow groove, thereby filtering the air, reducing dust accumulation in the straight flow groove, and extending the overall service life.

[0017] In summary, the pressure regulating valve has the advantages of compact structure, low cost, simple hole opening process, good sealing, air filtering and extended service life, and is particularly suitable for the field of pressure regulating valve technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0020] Figure 2 It is a structural schematic diagram of the voltage regulating block in the utility model.

[0021] Figure 3 It is a schematic diagram of the sealing gasket structure in the utility model.

[0022] Figure 4 It is a schematic diagram of the structure of the air flow hole in the utility model.

[0023] Figure 5 It is a structural schematic diagram of the arc-shaped protruding block and the filter ring block in the utility model.

[0024] Figure 6 It is a structural schematic diagram of the air inlet channel and the air outlet channel in the utility model. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present utility model are clearly and completely described below in conjunction with the accompanying drawings.

[0026] Embodiment 1

[0027] like Figures 1 to 6 As shown, the utility model provides a small pressure regulating valve, including a pressure regulating valve 1, the lower end of the pressure regulating valve 1 is sealed and connected to a manifold 2, and a pressure regulating gauge 3 is provided on the left side of the pressure regulating valve 1, and the outer side of the pressure regulating gauge 3 is wrapped and connected to a rectangular protective block 31, and the left front end vertex and the right rear end vertex of the rectangular protective block 31 are both provided with connecting holes 32, and a screw fixing piece 33 is provided in the connecting hole 32, and the lower end of the screw fixing piece 33 is fixedly connected to the manifold 2;

[0028] The convergence plate 2 has an air outlet 21 at the front end on the right side of the convergence plate 2, an air inlet 22 at the rear end of the air outlet 21, the air inlet 22 is connected to an air inlet channel 23 on the left side, the air outlet 21 is connected to an air outlet channel 24 on the left side, the air inlet channel 23 is connected to a vertical channel 25 on the left side, the front end of the vertical channel 25 is connected to a pressure regulating valve 1, the left center position of the pressure regulating valve 1 is connected to a converging channel 26, a pressure regulating channel 27 is provided at the upper left end of the center position of the converging channel 26, and the pressure regulating channel 27 is connected to a pressure regulating gauge 3.

[0029] Further, the pressure regulating valve 1 includes an adjusting knob 11, and three identical limit blocks 12 are evenly arranged at the lower end of the adjusting knob 11. The outer side of the limit block 12 is a raised arc block, and the inner side of the limit block 12 is provided with a rectangular arc block. The inner side of the adjusting knob 11 is provided with a pressure regulating block 13, and the inner lower end of the pressure regulating block 13 is provided with a No. 1 spring 14, and the lower end of the No. 1 spring 14 is provided with a connecting ring block 15, and the outer center position of the connecting ring block 15 is wrapped with a sealing gasket 16, and the lower end of the connecting ring block 15 is fixedly connected to the pressure regulating main shaft 4, and the outer side of the lower end of the pressure regulating main shaft 4 passes through a circulation block 17, and the circulation block 17 is a T-shaped structure, and a straight-line circulation groove 18 is provided on the surface of the circulation block 17. A thread is provided on the outer side of the lower end, and the lower end of the circulation block 17 is threadedly connected to the pressure regulating chamber 19, and the adjusting knob 11 is limitedly connected to the internal pressure regulating block 13. When the adjusting knob 11 is rotated, the pressure regulating block 13 will also rotate accordingly, and then compress the No. 1 spring 14. Because the No. 1 spring 14 and the pressure regulating block 13 are fixedly connected, the No. 1 spring 14 is compressed to drive the connecting ring block 15 to move downward, and the connecting ring block 15 drives the pressure regulating main shaft 4 to be pressed downward, and the arc-shaped protrusion block 171 is away from the top pressure block 191, thereby realizing airflow circulation. The distance between the arc-shaped protrusion block 171 and the top pressure block 191 is the caliber that the airflow can pass through, thereby adjusting the size of the gas pressure. It is simple and efficient, with a compact structure, a simple principle, and strong practicality.

[0030] Furthermore, a top pressure block 191 is provided in the pressure regulating chamber 19, and a No. 2 spring 192 is provided at the lower end of the top pressure block 191. The lower end of the No. 2 spring 192 contacts the inner wall of the lower end of the pressure regulating chamber 19, and the pressure regulating chamber 19 is a T-shaped structure space. A top pressure block 191 is provided in the pressure regulating chamber 19, and the top pressure block 191 is sealed in contact with the upper arc-shaped protrusion block 171 under normal circumstances. When the adjusting knob 11 is rotated, the pressure regulating main shaft 4 presses the top pressure block 191 away from the arc-shaped protrusion block 171, so that the airflow in the pressure regulating chamber 19 enters the pressure regulating valve 1 and then is output to the air outlet channel 24. The arc-shaped protrusion block 171 is provided to improve the overall sealing performance, and the pressure regulating chamber 19 is installed in the manifold 2, which can also ensure the overall sealing performance, save space, and make the entire structure more compact.

[0031] Furthermore, an arc-shaped protrusion block 171 is provided at the lower end of the circulation block 17 near the pressure-regulating main shaft 4, and an airflow circulation hole 172 is opened at the center of the circulation block 17. The center of the airflow circulation hole 172 is circular, and the pressure-regulating main shaft 4 is penetrated by the center of the airflow circulation hole 172. The left and right sides of the airflow circulation hole 172 are semicircular, and the upper end surfaces of the semicircular positions on the left and right sides of the airflow circulation hole 172 are provided with filter mesh ring blocks 173. The center position of the filter mesh ring block 173 is sealed and movably connected to the pressure-regulating main shaft 4. The airflow circulation hole 172 is for facilitating the circulation of airflow and the downward movement of the pressure-regulating main shaft 4. The filter mesh ring block 173 is movably connected to the pressure-regulating main shaft 4. When the airflow passes through the filter mesh ring block 173, the airflow can be filtered, thereby extending the service life of the device.

[0032] Furthermore, a sealing ball 251 is provided at the rear end port of the vertical channel 25, and a No. 2 sealing ball 261 is provided at the leftmost side of the convergence channel 26. The vertical channel 25 and the convergence channel 26 are provided to facilitate opening a hole inside the convergence plate 2, and then the sealing ball 251 and the No. 2 sealing ball 261 are provided to seal one port, which has good sealing performance, simple hole opening process and low cost.

[0033] Furthermore, the front and rear sides of the center of the busbar 2 are both provided with connection and mounting holes 28 , and the connection and mounting holes 28 run through the entire busbar 2 . The connection and mounting holes 28 are for facilitating the installation and fixation of the busbar 2 .

[0034] Working process: first connect the manifold 2 with the pressure regulating valve 1 and the pressure regulating gauge 3, then the worker turns the adjusting knob 11, the adjusting knob 11 drives the pressure regulating block 13 to rotate, then the No. 1 spring 14 is driven to rotate and compress, so that the connecting ring block 15 is driven to move downward, and then the pressure regulating main shaft 4 moves downward, away from the arc-shaped protruding block 171, and the gas entering from the air inlet channel 23 enters the pressure regulating chamber 19 through the vertical channel 25, and then the pressure is adjusted by the distance between the top pressure block 191 and the arc-shaped protruding block 171, and the airflow enters the straight flow groove 18 from the airflow flow hole 172, and then enters the air outlet channel 24 to complete the overall pressure regulation. When the adjusting knob 11 is manually turned, the corresponding pointer of the pressure regulating gauge 3 rotates, which can be effectively observed;

[0035] It is worth noting that the entire pressure regulating valve has a compact structure and is divided into two parts connected by a manifold 2, which is convenient for connecting the outer air flow duct, has a good sealing effect, is low in cost, and is stable and easy to install.

[0036] In the description of the present invention, it should be understood that the terms "front and back", "left and right", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the equipment or components referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the utility model.

[0037] Of course, in the present technical solution, those skilled in the art should understand that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element may be one, while in another embodiment, the number of the element may be multiple, and the term "one" should not be understood as a limitation on the quantity.

[0038] The above is only a preferred specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art under the technical guidance of the utility model should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A small pressure regulating valve, characterized in that: include A pressure regulating valve (1), wherein the lower end of the pressure regulating valve (1) is sealed and connected to a manifold (2), and a pressure regulating gauge (3) is provided on the left side of the pressure regulating valve (1), and the outer side of the pressure regulating gauge (3) is wrapped and connected to a rectangular protective block (31), and the rectangular protective block (31) is provided with connecting holes (32) at the front end vertex on the left side and the rear end vertex on the right side, and a screw fixing piece (33) is provided in the connecting hole (32), and the lower end of the screw fixing piece (33) is fixedly connected to the manifold (2); A confluence plate (2), wherein an air outlet (21) is provided at the front end of the right side of the confluence plate (2), an air inlet (22) is provided at the rear end of the air outlet (21), the air inlet (22) is connected to an air inlet channel (23) on the left side, the air outlet (21) is connected to an air outlet channel (24) on the left side, the air inlet channel (23) is connected to a vertical channel (25) on the left side, the front end of the vertical channel (25) is connected to a pressure regulating valve (1), the left center position of the pressure regulating valve (1) is connected to a confluence channel (26), a pressure regulating channel (27) is provided at the upper end of the left center position of the confluence channel (26), and the pressure regulating channel (27) is connected to a pressure regulating gauge (3).

2. A small pressure regulating valve according to claim 1, characterized in that: The pressure regulating valve (1) comprises an adjusting knob (11), three identical limit blocks (12) are evenly arranged at the lower end of the adjusting knob (11), the outer side of the limit block (12) is a raised arc block, and a rectangular arc clamping block is arranged inside the limit block (12), a pressure regulating block (13) is arranged inside the adjusting knob (11), a No. 1 spring (14) is arranged at the lower end of the pressure regulating block (13), and a connecting ring block (15) is arranged at the lower end of the No. 1 spring (14). ), a sealing gasket (16) is wrapped around the center of the outer side of the connecting ring block (15), and the lower end of the connecting ring block (15) is fixedly connected to the pressure regulating main shaft (4), the outer side of the lower end of the pressure regulating main shaft (4) passes through the circulation block (17), the circulation block (17) is a T-shaped structure, and a straight-line circulation groove (18) is provided on the surface of the circulation block (17), a thread is provided on the outer side of the lower end of the circulation block (17), and the lower end of the circulation block (17) is threadedly connected to the pressure regulating chamber (19).

3. A small pressure regulating valve according to claim 2, characterized in that: A pressure block (191) is provided in the pressure regulating chamber (19), a No. 2 spring (192) is provided at the lower end of the pressure block (191), the lower end of the No. 2 spring (192) contacts the inner wall of the lower end of the pressure regulating chamber (19), and the pressure regulating chamber (19) is a T-shaped structural space.

4. A small pressure regulating valve according to claim 2, characterized in that: An arc-shaped protruding block (171) is provided at the lower end of the circulation block (17) near the pressure regulating main shaft (4), and an airflow circulation hole (172) is provided at the center of the circulation block (17). The center of the airflow circulation hole (172) is circular, and the pressure regulating main shaft (4) is penetrated through the center of the airflow circulation hole (172). The left and right sides of the airflow circulation hole (172) are semicircular, and filter mesh ring blocks (173) are provided on the upper end surfaces of the semicircular positions on the left and right sides of the airflow circulation hole (172). The center of the filter mesh ring block (173) is sealed and movably connected to the pressure regulating main shaft (4).

5. A small pressure regulating valve according to claim 1, characterized in that: A blocking ball (251) is provided at the rear end port of the vertical channel (25), and a No. 2 blocking ball (261) is provided at the leftmost side of the converging channel (26).

6. A small pressure regulating valve according to claim 1, characterized in that: The central position of the busbar (2) is provided with connection and mounting holes (28) at the front and rear sides thereof, and the connection and mounting holes (28) penetrate the entire busbar (2).

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