Self-operated pressure regulating valve

Abstract

The utility model discloses a self-operated pressure regulating valve, which relates to the technical field of regulating valves, and comprises a valve body, the left end and the right end of the valve body are both fixedly connected with connecting seats, the outer surfaces of the left connecting seat and the right connecting seat are both provided with sleeve blocks, and the middle part of one side, far away from the connecting seats, of each sleeve block is movably connected with a pipeline in a penetrating manner. Through mutual cooperation of the connecting seat, the threaded sleeve, the positioning groove, the inserting groove, the limiting block, the sleeve block, a positioning assembly, a first rubber ring, an annular groove and a positioning groove, after the sleeve block makes contact with the connecting seat, the limiting block slides in the upper and lower positioning grooves, and through rotation of the sleeve block, the limiting block is located in the front and rear positioning grooves; the self-operated pressure regulating valve is simple in structure and convenient to connect and fix, fixing is enhanced through the arrangement of the positioning assembly, the positioning groove and the inserting groove, the self-operated pressure regulating valve and the pipeline are convenient and easy to install and connect through the arrangement of the structure, and therefore the effect of rapid installation is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of regulating valves, and particularly relates to a self-acting pressure regulating valve. Background Art

[0002] Self-acting pressure regulating valves are divided into three series: self-acting pressure, differential pressure and flow regulating valves. Self-acting pressure regulating valves are classified into two types: before-valve and after-valve according to the position of the pressure tapping point. When the pressure tapping point is before the valve, it is used to keep the pressure before the valve constant. When the pressure tapping point is after the valve, it is used to keep the pressure after the valve constant. When the pressures before and after the valve are simultaneously introduced into both sides of the air chamber of the actuator, the self-acting differential pressure regulating valve can adjust the pressure at both ends of the regulating valve to be constant. The differential pressure across the orifice plate installed on the pipeline can also be introduced into both sides of the air chamber of the diaphragm actuator to form a self-acting flow regulating valve, or the flow can be detected in other ways and the self-acting differential pressure regulating valve can be used to achieve flow regulation. However, during the connection process between the existing self-acting pressure regulating valve and the pipeline, there are problems such as inconvenient disassembly and assembly and cumbersome operation, which in turn affect the installation and maintenance efficiency of the staff. Therefore, it is very necessary to improve the existing self-acting pressure regulating valve.

[0003] According to the patent publication number CN215371182U, a self-acting pressure regulating valve is disclosed. The key points of its technical solution include a valve body and an actuator located on the valve body. Both ends of the valve body are provided with connection structures adapted to it. The connection structure is arranged in a cylindrical structure. There are at least two integral fixing bumps on the connection structure. One side of the fixing bump is also provided with an integral fixing protrusion. The fixing protrusion is in an arc-shaped structure. Both ends of the valve body are provided with port parts adapted to the connection structure. Fixing grooves adapted to the fixing bumps and fixing protrusions are opened on the port parts. The fixing protrusion is inserted into the fixing groove. Corresponding first fixing holes and second fixing holes are respectively opened on the port part and the connection structure. And a limiting structure is penetrated through the first fixing hole and the second fixing hole. A third fixing hole adapted to the limiting structure is also opened on the fixing protrusion. The utility model has the effects of simple structure, convenient disassembly and assembly, concise operation and high working efficiency. The following problems exist in view of the prior art:

[0004] In the above-mentioned publication number CN215371182U, the pipeline connection method needs to be installed and fixed through lock nuts. As a result, with the use of multiple lock nuts, the installation is inconvenient and laborious, and each lock nut needs to be tightened and fixed. At the same time, there is no sealing structure in the installation and connection process of the publication number CN215371182U, resulting in poor sealing performance during use, thus making it inconvenient to use. Summary of the Utility Model

[0005] The present utility model provides a self-acting pressure regulating valve to solve the problems raised in the above-mentioned background technology.

[0006] To solve the above technical problems, the technical solution adopted by the present utility model is:

[0007] A self-acting pressure regulating valve, comprising a valve body. Both the left and right ends of the valve body are fixedly connected with connecting seats. Sleeve blocks are arranged on the outer surfaces of the left and right connecting seats. A pipe penetrates and is movably connected through the middle of the side of the sleeve block away from the connecting seat.

[0008] In the middle of the side of the connecting seat away from the valve body, a threaded sleeve penetrates and is fixedly connected. Positioning grooves are respectively opened on the front and rear sides of the outer surface of the connecting seat close to the valve body. A slot is opened on the front surface of the inner wall of the positioning groove. A sealing component is threadedly connected to the outer surface of the threaded sleeve. The right side of the sealing component abuts against the left side of the connecting seat. Positioning components are fixedly connected to the front and rear sides of the side of the sleeve block close to the connecting seat. Limiting blocks are fixedly connected to the front and rear sides of the outer surface of the connecting seat away from the valve body.

[0009] A further improvement of the technical solution of the present utility model lies in that: the connecting seats, sleeve blocks, and sealing components on the left and right sides of the valve body are mirror-image arranged. A first rubber ring is fixedly connected to the side of the pipe close to the sleeve block. An annular groove is opened on the inner wall of the sleeve block close to the connecting seat. The left side of the first rubber ring abuts against the inner wall of the sleeve block. Four positioning grooves are annularly arranged on the right side of the inner wall of the annular groove. The inner and outer sides of the right side of the upper and lower positioning grooves are interconnected.

[0010] A further improvement of the technical solution of the present utility model lies in that: the inner walls of the annular groove and the positioning groove respectively abut against the outer surface of the limiting block. The inner wall of the sleeve block is movably connected to the outer surface of the connecting seat.

[0011] A further improvement of the technical solution of the present utility model lies in that: the right side of the first rubber ring abuts against and is tightly pressed against the left side of the sealing component. The first rubber ring and the sealing component are in a contracted state.

[0012] A further improvement of the technical solution of the present utility model lies in that: the positioning component includes a plug board. Plates are respectively lapped on the upper and lower surfaces of the plug board. Sliders are fixedly connected to the right sides of the opposite surfaces of the upper and lower plates. Strip-shaped grooves are respectively opened in the middle of the upper and lower surfaces of the plug board. The inside of the strip-shaped groove is slidably connected to the outer surface of the slider.

[0013] A further improvement of the technical solution of the present utility model lies in that: two trapezoidal rubber blocks are mirror-image fixedly connected to the opposite surfaces of the front and rear plug boards. The outer surface of the trapezoidal rubber is inserted into and tightly pressed against the inside of the slot. The outer surface diameter of the trapezoidal rubber block is larger than the inside diameter of the slot.

[0014] The further improvement of the technical solution of the present utility model lies in that: the sealing assembly includes an elastic rubber ring, a circular groove is provided on the left side of the elastic rubber ring, a plurality of placement grooves are provided on the upper and lower sides of the outer surface of the elastic rubber ring, a sealing rubber ring is lapped and pressed tightly on the outer surface of the elastic rubber ring, a plurality of rubber blocks are fixedly connected to the upper and lower sides of the inner wall of the sealing rubber ring, the outer surfaces of the plurality of rubber blocks are lapped with the interiors of the plurality of placement grooves, a second rubber ring is lapped in the circular groove, and the inner wall diameter of the sealing rubber ring is smaller than the outer surface diameter of the elastic rubber ring.

[0015] The further improvement of the technical solution of the present utility model lies in that: the rubber blocks, the sealing rubber ring, the placement grooves, the elastic rubber ring, the circular groove, and the second rubber ring are fixedly bonded by glue.

[0016] Due to the adoption of the above technical solution, the technical progress achieved by the present utility model compared with the prior art is:

[0017] The present utility model provides a self-acting pressure regulating valve, which adopts the mutual cooperation of a connecting seat, a threaded sleeve, a positioning groove, a slot, a limiting block, a sleeve block, a positioning component, a first rubber ring, an annular groove, and a positioning recess. After the sleeve block contacts the connecting seat, the limiting block slides in the upper and lower positioning recesses and by rotating the sleeve block, the limiting block is in the front and rear positioning recesses, which is convenient for connection and fixation. And through the arrangement of the positioning component, the positioning groove and the slot, the fixation is strengthened. Through the setting of this structure, the installation connection of the self-acting pressure regulating valve and the pipeline is relatively convenient and simple, thus achieving the effect of rapid installation.

[0018] The present utility model provides a self-acting pressure regulating valve, which adopts the mutual cooperation of a sealing assembly, an elastic rubber ring, a circular groove, a placement groove, a sealing rubber ring, a rubber block, and a second rubber ring. During the installation connection process of the self-acting pressure regulating valve and the pipeline, under the elastic action of the elastic rubber circle, the sealing rubber ring is pushed, so that the outer surface of the sealing rubber ring is closely attached to the inner wall of the sleeve block. At the same time, the second rubber ring contacts and presses against the first rubber ring, making the two closely attached. Through the setting of this structure, the self-acting pressure regulating valve has a sealing performance when installed and connected to the pipeline, preventing the occurrence of leakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a structural schematic diagram of the present utility model;

[0020] Figure 2 is an exploded structural schematic diagram of the valve body and pipeline installation of the present utility model;

[0021] Figure 3 is an exploded structural schematic diagram of the sleeve block and pipeline of the present utility model;

[0022] Figure 4 Schematic diagram of the exploded structure of the positioning component of the present utility model;

[0023] Figure 5 Schematic diagram of the exploded structure of the sealing component of the present utility model.

[0024] In the figure: 1, valve body; 2, connecting seat; 21, threaded sleeve; 22, positioning groove; 23, slot; 24, limiting block; 3, sleeve block; 31, positioning component; 311, plate; 312, insertion plate; 313, strip-shaped groove; 314, slider; 32, rubber ring I; 33, annular groove; 34, positioning groove; 4, pipeline; 5, sealing component; 51, elastic rubber ring; 52, circular groove; 53, placement groove; 54, sealing rubber ring; 55, rubber block; 56, rubber ring II. Specific embodiments

[0025] In order to make the technical means, creative features, achieved purposes and effects realized by the present utility model easy to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0026] As Figure 1 shown, the present utility model provides a self-acting pressure regulating valve, which includes a valve body 1. Connecting seats 2 are fixedly connected to both the left and right ends of the valve body 1. Sleeve blocks 3 are arranged on the outer surfaces of the left and right connecting seats 2. A pipeline 4 penetrates and is movably connected through the middle of the side of the sleeve block 3 away from the connecting seat 2;

[0027] The arrangement of the connecting seat 2 and the sleeve block 3 facilitates the installation and connection of the pipeline 4. The working principle of the valve body 1 is not described in detail in the prior art.

[0028] As Figure 2 - Figure 3As shown in the figure, a threaded sleeve 21 is fixedly connected through the middle of one side of the connecting seat 2 away from the valve body 1. Positioning grooves 22 are formed on both the front and rear sides of the outer surface of the connecting seat 2 near the valve body 1. A slot 23 is formed on the front surface of the inner wall of the positioning groove 22. A sealing component 5 is threadedly connected to the outer surface of the threaded sleeve 21. The right side of the sealing component 5 abuts against the left side of the connecting seat 2. Positioning components 31 are fixedly connected to both the front and rear sides of the side of the sleeve block 3 close to the connecting seat 2. Limiting blocks 24 are fixedly connected to both the front and rear sides of the outer surface of the connecting seat 2 away from the valve body 1. The connecting seat 2, the sleeve block 3, and the sealing component 5 on the left and right sides of the valve body 1 are arranged in a mirror image. A first rubber ring 32 is fixedly connected to the side of the pipeline 4 close to the sleeve block 3. An annular groove 33 is formed on the side of the inner wall of the sleeve block 3 close to the connecting seat 2. The left side of the first rubber ring 32 abuts against the inner wall of the sleeve block 3. Four positioning grooves 34 are annularly arranged on the right side of the inner wall of the annular groove 33. The inner and outer sides of the right side of the upper and lower positioning grooves 34 are interconnected. The inner walls of the annular groove 33 and the positioning grooves 34 respectively abut against the outer surface of the limiting block 24. The inner wall of the sleeve block 3 is movably connected to the outer surface of the connecting seat 2. The right side of the first rubber ring 32 abuts against and presses tightly against the left side of the sealing component 5. The first rubber ring 32 and the sealing component 5 are in a contracted state;

[0029] When installation is required, the sealing component 5 is rotationally connected and fixed to the threaded sleeve 21, and then the sleeve block 3 is moved and sleeved with the connecting seat 2. At this time, the limiting block 24 passes through the upper and lower positioning grooves 34, so that the annular groove 33 contacts the limiting block 24. After rotating the sleeve block 3 to an appropriate position and then moving the sleeve block 3 again, the limiting block 24 enters the interior of the front and rear positioning grooves 34 for clamping and positioning. At this time, the sealing component 5, the first rubber ring 32, and the inner wall of the sleeve block 3 are extruded and closely attached to achieve sealing. After installation, through the mutual cooperation of the positioning component 31, the positioning groove 22, and the slot 23, it is convenient to limit and fix the position of the sleeve block 3. On the contrary, when disassembly is required, the sleeve block 3 is loosened and moved through the positioning component 31 and the connecting seat 2 to separate the front and rear positioning grooves 34 from the limiting block 24. After rotating the sleeve block 3 to an appropriate position, the limiting block 24 is aligned with the upper and lower interconnected positioning grooves 34, and the sleeve block 3 is pulled to complete the disassembly operation.

[0030] As Figure 4 shown in the figure, the positioning component 31 includes a plug board 312. Plate blocks 311 are lapped on both the upper and lower surfaces of the plug board 312. Sliders 314 are fixedly connected to the right sides of the opposite surfaces of the upper and lower plate blocks 311. Strip-shaped grooves 313 are formed in the middle of both the upper and lower surfaces of the plug board 312. The inner part of the strip-shaped groove 313 is slidably connected to the outer surface of the slider 314. Two trapezoidal rubber blocks are mirror-image fixedly connected to the opposite surfaces of the front and rear plug boards 312. The outer surface of the trapezoidal rubber is inserted and pressed tightly into the interior of the slot 23. The outer surface diameter of the trapezoidal rubber block is larger than the inner diameter of the slot 23;

[0031] When it is necessary to position the component 31 and push the plug board 312 to make the slider 314 slide inside the strip groove 313, so that the plug board 312 enters the inside of the positioning groove 22, and then push again to make the outer surface of the trapezoidal rubber block contact the inner wall of the slot 23, so as to facilitate the extrusion and contraction of the trapezoidal rubber block, and make the contracted trapezoidal rubber block fit tightly with the inner wall of the slot 23, thus achieving the positioning effect. On the contrary, pulling the plug board 312 to move makes the trapezoidal rubber block separate from the slot 23 and the positioning groove 22, thus achieving the effect of loosening the connecting seat 2.

[0032] As Figure 5 shown, the sealing component 5 includes an elastic rubber ring 51. A circular groove 52 is formed on the left side of the elastic rubber ring 51. A plurality of placement grooves 53 are formed on both the upper and lower sides of the outer surface of the elastic rubber ring 51. A sealing rubber ring 54 is lapped and pressed tightly on the outer surface of the elastic rubber ring 51. A plurality of rubber blocks 55 are fixedly connected to both the upper and lower sides of the inner wall of the sealing rubber ring 54. The outer surfaces of the plurality of rubber blocks 55 are lapped with the inside of the plurality of placement grooves 53. A second rubber ring 56 is lapped in the circular groove 52. The inner wall diameter of the sealing rubber ring 54 is smaller than the outer surface diameter of the elastic rubber ring 51. The rubber blocks 55, the sealing rubber ring 54, the placement grooves 53, the elastic rubber ring 51, the circular groove 52, and the second rubber ring 56 are fixedly bonded by glue;

[0033] When installing, the movement of the sleeve block 3 facilitates the extrusion and contraction of the sealing rubber ring 54 and the elastic rubber ring 51. The opposite surfaces of the second rubber ring 56 and the first rubber ring 32 contact and squeeze. At this time, one side of the first rubber ring 32 fits tightly with the inner wall of the sleeve block 3, preventing gaps at the connection between the pipeline 4 and the sleeve block 3, so that there is sealing between the two. At the same time, the second rubber ring 56 and the first rubber ring 32 deform and fit tightly with each other. Since the elastic rubber ring 51 has a certain elasticity after extrusion and contraction, the outer surface of the sealing rubber ring 54 fits tightly with the inner wall of the sleeve block 3, thus achieving the sealing effect. The arrangement of the placement grooves 53, the rubber blocks 55, and the circular groove 52 facilitates the connection of the sealing rubber ring 54 and the second rubber ring 56 and bonding by glue, increasing the contact area and making the bonding more firm.

[0034] Next, specifically describe the working principle of this self-acting pressure regulating valve.

[0035] When it is necessary to fix the sealing component 5 by rotatably connecting it with the threaded sleeve 21 during installation, and then move the sleeve block 3 and socket it with the connecting seat 2. At this time, the limiting block 24 passes through the upper and lower positioning grooves 34, so that the annular groove 33 contacts the limiting block 24. After rotating the sleeve block 3 to an appropriate position, the sleeve block 3 is moved again so that the limiting block 24 enters the interior of the front and rear positioning grooves 34. After installation, through the mutual cooperation of the positioning component 31, the positioning groove 22, and the slot 23, it is convenient to limit and fix the position of the sleeve block 3. And during the installation process, due to the movement of the sleeve block 3, it is convenient to squeeze and contract the sealing rubber ring 54 and the elastic rubber ring 51. The opposite surfaces of the second rubber ring 56 and the first rubber ring 32 contact and squeeze each other, causing deformation and close fitting between the two. Due to the certain elasticity after the extrusion and contraction of the elastic rubber ring 51, the outer surface of the sealing rubber ring 54 is closely attached to the inner wall of the sleeve block 3, thus achieving the sealing effect.

[0036] The above has generally described the present utility model in detail. However, based on the present utility model, some modifications or improvements can be made, which are obvious to those of ordinary skill in the technical field. Therefore, modifications or improvements made without departing from the spirit and idea of the present utility model are within the protection scope of the present utility model.

Claims

1. A self-operated pressure regulating valve, comprising a valve body (1), characterized in that: Both the left and right ends of the valve body (1) are fixedly connected with connecting seats (2). Sleeve blocks (3) are arranged on the outer surfaces of the left and right connecting seats (2). A pipe (4) is movably connected through the middle of one side of the sleeve block (3) far away from the connecting seat (2). A threaded sleeve (21) is fixedly connected through the middle of one side of the connecting seat (2) far away from the valve body (1). Positioning grooves (22) are respectively opened on the front and rear sides of the outer surface of the connecting seat (2) close to the valve body (1). A slot (23) is opened on the front surface of the inner wall of the positioning groove (22). A sealing component (5) is threadedly connected to the outer surface of the threaded sleeve (21). The right side of the sealing component (5) is lapped with the left side of the connecting seat (2). Positioning components (31) are fixedly connected to the front and rear sides of one side of the sleeve block (3) close to the connecting seat (2). Limit blocks (24) are fixedly connected to the front and rear sides of the outer surface of the connecting seat (2) far away from the valve body (1).

2. The self-acting pressure regulating valve according to claim 1, characterized in that: The left and right connecting seats (2), sleeve blocks (3), and sealing components (5) of the valve body (1) are arranged in a mirror image. A first rubber ring (32) is fixedly connected to one side of the pipe (4) close to the sleeve block (3). An annular groove (33) is opened on the inner wall of the sleeve block (3) close to the connecting seat (2). The left side of the first rubber ring (32) is lapped with the inner wall of the sleeve block (3). Four positioning grooves (34) are annularly arranged on the right side of the inner wall of the annular groove (33). The inner and outer sides of the right side of the inner wall of the upper and lower positioning grooves (34) are communicated with each other.

3. The self-acting pressure regulating valve according to claim 2, characterized in that: The inner walls of the annular groove (33) and the positioning grooves (34) are respectively lapped with the outer surfaces of the limit blocks (24). The inner wall of the sleeve block (3) is movably connected with the outer surface of the connecting seat (2).

4. The self-acting pressure regulating valve according to claim 2, wherein: The right side of the first rubber ring (32) is lapped and pressed against the left side of the sealing component (5). The first rubber ring (32) and the sealing component (5) are in a contracted state.

5. A self-acting pressure regulating valve according to claim 1, characterized in that: The positioning component (31) includes a plug board (312). Plates (311) are lapped on the upper and lower surfaces of the plug board (312). Sliders (314) are fixedly connected to the right sides of the opposite surfaces of the upper and lower plates (311). Strip-shaped grooves (313) are respectively opened in the middle of the upper and lower surfaces of the plug board (312). The inner parts of the strip-shaped grooves (313) are slidably connected with the outer surfaces of the sliders (314).

6. The self-acting pressure regulating valve according to claim 5, characterized in that: Two trapezoidal rubber blocks are fixedly connected in a mirror image on the opposite surfaces of the front and rear plug boards (312). The outer surface of the trapezoidal rubber is inserted and pressed against the inside of the slot (23). The outer surface diameter of the trapezoidal rubber block is larger than the inner diameter of the slot (23).

7. A self-acting pressure regulating valve according to claim 1, characterized in that: The sealing assembly (5) includes an elastic rubber ring (51). A circular groove (52) is formed on the left side of the elastic rubber ring (51). A plurality of placing grooves (53) are formed on the upper and lower sides of the outer surface of the elastic rubber ring (51). A sealing rubber ring (54) is lapped and pressed tightly against the outer surface of the elastic rubber ring (51). A plurality of rubber blocks (55) are fixedly connected to the upper and lower sides of the inner wall of the sealing rubber ring (54). The outer surfaces of the plurality of rubber blocks (55) are lapped with the interiors of the plurality of placing grooves (53). A second rubber ring (56) is lapped in the circular groove (52). The inner wall diameter of the sealing rubber ring (54) is smaller than the outer surface diameter of the elastic rubber ring (51).

8. The self-acting pressure regulating valve according to claim 7, characterized in that: The rubber block (55), the sealing rubber ring (54), the placing groove (53), the elastic rubber ring (51), the circular groove (52), and the second rubber ring (56) are fixedly bonded by glue.

Images