Novel air pressure reducing valve

Abstract

The utility model discloses a novel air pressure reducing valve which comprises an installation back plate and a pressure reducing valve body installed on the front face of the installation back plate, a valve meter is installed on the front face of the pressure reducing valve body, a protective cover is detachably connected to the front face of the installation back plate, the pressure reducing valve body is located in the protective cover, and a through groove is formed in the front face of the protective cover. The valve meter penetrates through the through groove and extends out of the protective cover, and an auxiliary assembly is arranged on the front face of the protective cover. According to the pressure reducing valve, the protective cover which can be rapidly disassembled and assembled is installed on the front face of the pressure reducing valve body to protect the pressure reducing valve body, the pressure reducing valve body and the valve meter are effectively prevented from being physically collided or damaged by dust, the service life of equipment is prolonged, meanwhile, maintenance and overhaul work is facilitated, and the working efficiency is improved; the design of the sliding movable cover allows the valve meter to be checked under the condition that the protective cover is not completely detached, so that the visibility of the valve meter is ensured, the protective cover does not need to be frequently detached, and the complexity of operation is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of filtering pressure reducing valves, in particular to a novel air pressure reducing valve. Background Art

[0002] The air filter pressure reducing valve is an auxiliary device of the pneumatic diaphragm regulating valve combination unit. After inputting 0.3-1.0MPa compressed air, it can provide 0.1-1.0MPa clean air source to the pneumatic remote control panel and valve positioner. The air filter pressure reducing valve belongs to the pilot piston type pressure reducing valve. It consists of two parts: the main valve and the pilot valve. The main valve is mainly composed of valve seat, main valve disc, piston, spring and other parts. The pilot valve is mainly composed of valve seat, valve disc, diaphragm, spring, regulating spring and other parts. The outlet pressure is set by adjusting the spring pressure, the outlet pressure change is sensed by the diaphragm, and the size of the flow area of ​​the main valve throttling part is adjusted by the pilot valve opening and closing to drive the piston to achieve the pressure reduction and stabilization function.

[0003] However, the existing air filter pressure reducing valves have only a separate valve body without any protective mechanism, which is easy to be damaged during transportation and installation, and is also easily affected by collision or dust during use;

[0004] The patent with application number CN202322891808.0 discloses an air filter pressure reducing valve with a protective structure, including a protective cover shell, a mounting base and an air filter pressure reducing valve, a numerical observation groove is provided in the middle part of the front of the protective cover shell, U-shaped grooves are provided on both sides of the protective cover shell, a valve body fixing groove is provided in the middle part of the upper part of the protective cover shell, a cover shell fixing hole is provided at the left bottom of the protective cover shell, an air filter pressure reducing valve head is fixed just above the valve body fixing groove, and mounting holes are provided at the four corners of the mounting base. The utility model provides an air filter pressure reducing valve with a protective structure. Through the provision of a protective cover shell, the air filter pressure reducing valve is fixed to the protective cover shell by a fixing nut when in use, thereby achieving the function of protecting the valve body of the air filter pressure reducing valve and avoiding the situation where the valve body of the air filter pressure reducing valve is damaged due to collision during use.

[0005] This structure protects the pressure reducing valve through a protective shell, but the protective shell exposes the valve surface, which is easily hit or contaminated with dust and oil, making it difficult to observe. In addition, the protective cover in this structure is inconvenient to disassemble and assemble, and is prone to shaking. Therefore, professionals in this field provide a new air pressure reducing valve to solve the above-mentioned problems. Utility Model Content

[0006] In view of the problems existing in the prior art, the purpose of the utility model is to provide a novel air pressure reducing valve, which not only ensures the visibility of the valve table, but also does not require frequent removal of the protective cover, thereby reducing the complexity of operation.

[0007] To achieve the above object, the utility model adopts the following technical solutions;

[0008] A new type of air pressure reducing valve includes an installation back plate and a pressure reducing valve main body installed on its front. A valve meter is installed on the front of the pressure reducing valve main body. A protective cover is detachably connected to the front of the installation back plate. The pressure reducing valve main body is located inside the protective cover. A through groove is opened on the front of the protective cover. The valve meter penetrates through the through groove and extends to the outside of the protective cover. An auxiliary component is arranged on the front of the protective cover. An installation groove is opened inside the installation back plate. Uniformly distributed fitting grooves are opened on the inner wall of the installation groove. Uniformly distributed fitting blocks are fixedly connected to the back of the protective cover. The fitting blocks are located inside the fitting grooves. A synchronous frame is slidably connected to the inner wall of the installation groove. A spring is fixedly connected to the synchronous frame. The other end of the spring is fixedly connected to the inner wall of the installation groove. Uniformly distributed clamping blocks are fixedly connected to the synchronous frame. The clamping blocks are located inside the fitting grooves and are clamped with the fitting blocks.

[0009] As a further description of the above technical solution: The auxiliary component includes a movable cover. The movable cover is slidably connected to the front of the protective cover. The valve meter is located inside the movable cover. A magnet is fixedly connected to the bottom of the movable cover. A metal sheet magnetically connected to the magnet is fixedly connected to the front of the protective cover.

[0010] As a further description of the above technical solution: Finger grooves are opened on the movable cover. Uniformly distributed anti-slip lines are opened on the inner walls of the finger grooves.

[0011] As a further description of the above technical solution: Uniformly distributed sealing plates are connected to the front of the installation back plate. Uniformly distributed through holes are opened on the sealing plates.

[0012] As a further description of the above technical solution: Chamfered edges are opened on both the fitting blocks and the clamping blocks. The surfaces of the chamfered edges are smooth.

[0013] Compared with the prior art, the advantages of the utility model are as follows:

[0014] In the utility model, the pressure reducing valve main body is protected by installing a quickly detachable protective cover on its front, effectively preventing the pressure reducing valve main body and the valve meter from being physically collided or invaded by dust, prolonging the service life of the equipment, facilitating maintenance and repair work at the same time, improving work efficiency. The design of sliding the movable cover allows the valve meter to be viewed without completely disassembling the protective cover, which not only ensures the visibility of the valve meter but also does not require frequent disassembly of the protective cover, reducing the complexity of operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a three-dimensional structural schematic diagram of the utility model;

[0016] Figure 2 It is a schematic diagram of the three-dimensional structure of the protective cover of the utility model;

[0017] Figure 3 This is a schematic diagram of the cross-sectional structure of the installation groove of the utility model;

[0018] Figure 4 It is a schematic diagram of the side cross-sectional structure of the fitting groove of the utility model.

[0019] Description of the numbers in the figure:

[0020] 1. Install the back plate; 2. Pressure reducing valve body; 3. Valve gauge; 4. Protective cover; 5. Through slot; 6. Auxiliary components; 601. Movable cover; 602. Magnet; 7. Installing slot; 8. Fitting slot; 9. Fitting block; 10. Synchronous frame; 11. Spring; 12. Block; 13. Finger slot; 14. Sealing plate. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0022] See also Figures 1 to 4 In the utility model, a novel air pressure reducing valve comprises a mounting back plate 1 and a pressure reducing valve body 2 mounted on the front thereof, a valve gauge 3 is mounted on the front of the pressure reducing valve body 2, a protective cover 4 is detachably connected to the front of the mounting back plate 1, the pressure reducing valve body 2 is located inside the protective cover 4, a through groove 5 is provided on the front of the protective cover 4, the valve gauge 3 penetrates the through groove 5 and extends to the outside of the protective cover 4, an auxiliary component 6 is provided on the front of the protective cover 4, a mounting groove 7 is provided inside the mounting back plate 1, evenly distributed fitting grooves 8 are provided on the inner wall of the mounting groove 7, evenly distributed fitting blocks 9 are fixedly connected to the back of the protective cover 4, the fitting blocks 9 are located inside the fitting groove 8, a synchronous frame 10 is slidably connected to the inner wall of the mounting groove 7, a spring 11 is fixedly connected to the synchronous frame 10, the other end of the spring 11 is fixedly connected to the inner wall of the mounting groove 7, evenly distributed card blocks 12 are fixedly connected to the synchronous frame 10, and the card blocks 12 are located inside the fitting groove 8 and are engaged with the fitting blocks 9.

[0023] The auxiliary component 6 includes a movable cover 601, which is slidably connected to the front of the protective cover 4, and the valve table 3 is located inside the movable cover 601. The bottom of the movable cover 601 is fixedly connected to a magnet 602, and the front of the protective cover 4 is fixedly connected to a metal sheet magnetically connected to the magnet 602; the fitting block 9 and the clamping block 12 are both provided with bevels, and the surfaces of the bevels are smooth.

[0024] The valve table 3 is installed on the front of the pressure reducing valve body 2, and then the pressure reducing valve body 2 is installed on the front of the mounting back plate 1 by bolts. At this time, the pipes on both sides of the pressure reducing valve body 2 can be used to connect with the external airflow, and real-time pressure reduction and pressure measurement can be performed. In actual use, the pressure reducing valve body 2 is exposed to the air and is easily affected by collisions and dust. The user moves the protective cover 4 to the front of the mounting back plate 1, and then aligns the multiple groups of fitting blocks 9 with the front of the multiple groups of fitting grooves 8, and then pushes the protective cover 4 to the back so that the fitting blocks 9 enter the inside of the fitting grooves 8 and continue to press. The bevel of the fitting block 9 fits with the bevel of the card block 12, so that the card block 12 moves, and the synchronous frame 10 moves accordingly to compress the spring 11, and the spring 11 contracts and generates an opposite force. After the protective cover 4 is completely fitted with the mounting back plate 1, the card block 12 is not restricted at this time, and the spring 11 pushes the same The step frame 10 is reset and moves downward, so that the multiple groups of card blocks 12 are engaged with the multiple groups of matching blocks 9. At this time, the quick installation of the protective cover 4 is completed, thereby realizing the protection of the pressure reducing valve body 2, and the valve table 3 passes through the through groove 5 to enter the interior of the auxiliary component 6. When the user needs to check the valve table 3, the movable cover 601 is moved upward, and the magnetism between the magnet 602 and the metal sheet can be overcome to make the movable cover 601 slide upward, and the valve table 3 can be exposed for viewing. When the movable cover 601 is loosened, the magnet 602 and the metal sheet will be attached to the metal sheet due to gravity, and the limit of the movable cover 601 can be completed. When the protective cover 4 needs to be removed, the user pulls the synchronous frame 10 upward, so that the multiple groups of card blocks 12 fixedly connected to the synchronous frame 10 move upward accordingly, so that the card blocks 12 are separated from the matching blocks 9 and detached from the inside of the matching groove 8. At this time, the matching block 9 is not restricted and can be directly removed.

[0025] In the utility model, a quickly detachable protective cover 4 is installed on the front of the pressure reducing valve body 2 to protect it, effectively preventing the pressure reducing valve body 2 and the valve table 3 from being damaged by physical collision or dust, thereby extending the service life of the equipment, facilitating maintenance and repair work, and improving work efficiency. The design of the sliding movable cover 601 allows the valve table 3 to be viewed without completely removing the protective cover 4, which not only ensures the visibility of the valve table 3, but also does not require frequent removal of the protective cover 4, reducing the complexity of the operation.

[0026] See also Figure 1 and 2 , wherein: a finger groove 13 is provided on the movable cover 601, and the inner wall of the finger groove 13 is provided with evenly distributed anti-slip patterns.

[0027] In the present invention, when the user needs to slide the movable cover 601, the finger groove 13 can provide a good fulcrum for the user, and the anti-slip pattern can prevent the user from slipping.

[0028] See also Figure 1 and 2, wherein: on the front surface of the mounting backplane 1, evenly distributed sealing plates 14 are connected, and evenly distributed through holes are provided on the sealing plates 14.

[0029] In the present utility model, when the protective cover 4 is installed, the sealing plate 14 can be used in cooperation with the protective cover 4 to contact the part of the pressure reducing valve body 2 protruding from the protective cover 4 to achieve the sealing of the interior of the pressure reducing valve body 2, and the through holes on the sealing plate 14 can achieve heat dissipation.

[0030] The above is only the preferred specific embodiment of the present utility model; however, the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution and its improved concept of the present utility model, making equivalent substitutions or changes, shall be covered by the protection scope of the present utility model.

Claims

1. A novel air pressure reducing valve, comprising a mounting back plate (1) and a pressure reducing valve body (2) mounted on the front side thereof, characterized in that: The front of the pressure reducing valve body (2) is provided with a valve gauge (3), the front of the mounting back plate (1) is detachably connected with a protective cover (4), the pressure reducing valve body (2) is located inside the protective cover (4), a through groove (5) is provided on the front of the protective cover (4), the valve gauge (3) passes through the through groove (5) and extends to the outside of the protective cover (4), an auxiliary component (6) is provided on the front of the protective cover (4), a mounting groove (7) is provided inside the mounting back plate (1), and evenly distributed fittings are provided on the inner wall of the mounting groove (7). The protective cover (4) is fixedly connected to a groove (8), the back side of the protective cover (4) is fixedly connected with evenly distributed fitting blocks (9), the fitting blocks (9) are located inside the fitting groove (8), the inner wall of the mounting groove (7) is slidably connected with a synchronous frame (10), the synchronous frame (10) is fixedly connected with a spring (11), the other end of the spring (11) is fixedly connected to the inner wall of the mounting groove (7), the synchronous frame (10) is fixedly connected with evenly distributed clamping blocks (12), the clamping blocks (12) are located inside the fitting groove (8) and are clamped with the fitting blocks (9).

2. A novel air pressure reducing valve according to claim 1, characterized in that: The auxiliary component (6) includes a movable cover (601), the movable cover (601) is slidably connected to the front of the protective cover (4), the valve table (3) is located inside the movable cover (601), the bottom of the movable cover (601) is fixedly connected to a magnet (602), and the front of the protective cover (4) is fixedly connected to a metal sheet magnetically connected to the magnet (602).

3. A novel air pressure reducing valve according to claim 2, characterized in that: The movable cover (601) is provided with a finger groove (13), and the inner wall of the finger groove (13) is provided with evenly distributed anti-slip patterns.

4. A novel air pressure reducing valve according to claim 1, characterized in that: The front side of the mounting back plate (1) is connected to a sealing plate (14) which is evenly distributed, and the sealing plate (14) is provided with evenly distributed through holes.

5. A novel air pressure reducing valve according to claim 1, characterized in that: The fitting block (9) and the clamping block (12) are both provided with beveled edges, and the surfaces of the beveled edges are smooth.

Images