High-reliability constant pressure valve

Abstract

The utility model provides a kind of high reliability constant pressure valve, including valve body, the constant pressure chamber of valve body is provided with pressure regulating screw, constant pressure chamber outside is fixed with stop seat, constant pressure chamber outside is equipped with thread, the thread is located between the stop seat with the pressure regulating screw, constant pressure chamber one side is provided with the thread protective sleeve of one end closure, the thread protective sleeve with constant pressure chamber is threadedly connected, stop seat top is equipped with placing groove, the sealing washer is placed in the placing groove, the thread protective sleeve outside is fixed with several anti-skid blocks in circumferential direction, the utility model solves the problem that the existing adjusting nut protection cover is mostly wrapped in the whole constant pressure chamber, leading to the existing adjusting nut protection cover volume is too large, waste material also increases the inconvenience of transportation.

Description

Technical Field

[0001] This utility model relates to the field of mechanical parts, and in particular to a high-reliability constant pressure valve. Background Technology

[0002] A constant pressure valve is an automatic regulating device used to stabilize the pressure of a fluid (gas or liquid) system. Its core function is to maintain a constant outlet pressure, regardless of fluctuations in inlet pressure or flow rate.

[0003] The main components of a constant pressure valve include the valve body, valve core, pressure sensing element, valve seat, and adjusting mechanism (adjusting screw). The adjusting screw is mainly installed on the constant pressure chamber of the valve body and is protected by an adjusting nut protective cover. However, most existing adjusting nut protective covers completely enclose the constant pressure chamber, resulting in excessively large protective covers that waste materials and increase transportation inconvenience.

[0004] Therefore, it is necessary to provide a new high-reliability constant pressure valve to solve the above-mentioned technical problems. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a high-reliability constant pressure valve, which solves the problem that the existing adjusting nut protective cover mostly encloses the entire constant pressure chamber, resulting in an excessively large size of the existing adjusting nut protective cover, wasting materials and increasing the inconvenience of transportation.

[0006] The high-reliability constant pressure valve provided by this utility model includes a valve body, an adjusting screw is provided at the constant pressure chamber of the valve body, and a stop is fixed outside the constant pressure chamber;

[0007] The constant pressure chamber has a thread on its outer side, which is located between the stop and the pressure adjusting screw. A threaded protective sleeve with one end closed is provided on one side of the constant pressure chamber, and the threaded protective sleeve is threadedly connected to the constant pressure chamber.

[0008] In a preferred embodiment, a placement groove is provided above the stop, and a sealing gasket is placed inside the placement groove.

[0009] In a preferred embodiment, the outer side of the threaded protective sleeve is circumferentially fixed with several anti-slip blocks.

[0010] In a preferred embodiment, the pressure adjusting screw knob end has a hexagonal groove, and a hexagonal block is fixed on the threaded protective sleeve.

[0011] In a preferred embodiment, the threaded protective sleeve has a slot, a protective cap is provided on one side of the threaded protective sleeve, the open end of the protective cap is engaged with the slot, and the hexagonal block is located inside the protective cap.

[0012] The beneficial effects of this utility model are:

[0013] When using this threaded protective sleeve, the operator only needs to screw it along the thread to the top of the constant pressure chamber until the threaded protective sleeve contacts the sealing gasket at the placement groove. Since the threaded protective sleeve does not need to completely cover the outside of the constant pressure chamber, the size of the threaded protective sleeve is greatly reduced, saving raw materials and reducing the space required for transportation.

[0014] A sealing gasket is placed inside the placement slot to enhance the sealing effect, prevent moisture, dust and other impurities from entering, prevent metal parts from rusting, and improve the reliability of the pressure adjusting screw.

[0015] When it is necessary to turn the pressure adjusting screw, the user only needs to remove the threaded protective sleeve, pull out the protective cap, and insert the hexagonal block of the threaded protective sleeve into the hexagonal groove to turn the pressure adjusting screw. This is more labor-saving and also avoids contaminating the pressure adjusting screw with dirt from the user's hands. Attached Figure Description

[0016] Figure 1 Three-dimensional view of the main structure of the high-reliability constant pressure valve provided by this utility model Figure 1 ;

[0017] Figure 2 Three-dimensional view of the main structure of the high-reliability constant pressure valve provided by this utility model Figure 2 ;

[0018] Figure 3 Three-dimensional view of the main structure of the high-reliability constant pressure valve provided by this utility model Figure 3 .

[0019] The following are the labels in the diagram: 1. Valve body; 2. Constant pressure chamber; 3. Pressure adjusting screw; 4. Stop seat; 5. Placement groove; 6. Sealing gasket; 7. Thread; 8. Thread protective sleeve; 9. Anti-slip block; 10. Hexagonal groove; 11. Hexagonal block; 12. Slot; 13. Protective cap. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0021] Please refer to the following: Figure 1 , Figure 2 as well as Figure 3 ,in Figure 1 Three-dimensional view of the main structure of the high-reliability constant pressure valve provided by this utility model Figure 1 ; Figure 2 Three-dimensional view of the main structure of the high-reliability constant pressure valve provided by this utility model Figure 2 ; Figure 3Three-dimensional view of the main structure of the high-reliability constant pressure valve provided by this utility model Figure 3 .

[0022] In the specific implementation process, such as Figures 1-3 As shown, the valve includes a valve body 1. A pressure adjusting screw 3 is provided at the constant pressure chamber 2 of the valve body 1. A stop seat 4 is fixed to the outside of the constant pressure chamber 2. A placement groove 5 is provided above the stop seat 4. A sealing gasket 6 is placed inside the placement groove 5 to enhance the sealing effect, prevent water vapor, dust and other impurities from entering, prevent metal parts from rusting, improve the service life of the pressure adjusting screw 3 and improve reliability.

[0023] The constant pressure chamber 2 has a thread 7 on its outer side, which is located between the stop 4 and the pressure adjusting screw 3. A threaded protective sleeve 8 with one end closed is provided on one side of the constant pressure chamber 2. The threaded protective sleeve 8 is threadedly connected to the constant pressure chamber 2. Several anti-slip blocks 9 are fixed circumferentially on the outer side of the threaded protective sleeve 8 to facilitate the user to rotate the threaded protective sleeve 8.

[0024] The adjusting screw 3 has a hexagonal groove 10 at the knob end, a hexagonal block 11 fixed on the threaded protective sleeve 8, a slot 12 on the threaded protective sleeve 8, and a protective cap 13 on one side of the threaded protective sleeve 8. The open end of the protective cap 13 fits into the slot 12, and the hexagonal block 11 is located inside the protective cap 13. When it is necessary to turn the adjusting screw 3, the user only needs to remove the threaded protective sleeve 8, pull out the protective cap 13, and insert the hexagonal block 11 of the threaded protective sleeve 8 into the hexagonal groove 10 to turn the adjusting screw 3. This is more labor-saving and also avoids contamination of the adjusting screw 3 by the user's hands.

[0025] The working principle of this utility model is as follows: When using this threaded protective sleeve 8, the operator only needs to screw it along the thread 7 into the constant pressure chamber 2 until the threaded protective sleeve 8 contacts the sealing gasket 6 at the placement groove 5. Since the threaded protective sleeve 8 does not need to completely cover the outside of the entire constant pressure chamber 2, the size of the threaded protective sleeve 8 is greatly reduced, saving raw materials and reducing the space required for transportation.

[0026] When it is necessary to turn the pressure adjusting screw 3, the user only needs to remove the threaded protective sleeve 8, pull out the protective cap 13, and insert the hexagonal block 11 of the threaded protective sleeve 8 into the hexagonal groove 10 to turn the pressure adjusting screw 3. This is more labor-saving and also avoids contamination of the pressure adjusting screw 3 by the user's hands.

[0027] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A high-reliability constant pressure valve, comprising a valve body (1), characterized in that, A pressure adjusting screw (3) is provided at the constant pressure chamber (2) of the valve body (1), and a stop (4) is fixed outside the constant pressure chamber (2). The constant pressure chamber (2) has a thread (7) on its outer side. The thread (7) is located between the stop (4) and the pressure adjusting screw (3). A threaded protective sleeve (8) with one end closed is provided on one side of the constant pressure chamber (2). The threaded protective sleeve (8) is threadedly connected to the constant pressure chamber (2).

2. The high-reliability constant pressure valve according to claim 1, characterized in that, A placement groove (5) is provided above the stop (4), and a sealing gasket (6) is placed inside the placement groove (5).

3. The high-reliability constant pressure valve according to claim 2, characterized in that, The threaded protective sleeve (8) has several anti-slip blocks (9) fixed circumferentially on its outer side.

4. The high-reliability constant pressure valve according to claim 3, characterized in that, The pressure adjusting screw (3) has a hexagonal groove (10) at the knob end, and a hexagonal block (11) is fixed on the threaded protective sleeve (8).

5. The high-reliability constant pressure valve according to claim 4, characterized in that, The threaded protective sleeve (8) has a slot (12) and a protective cap (13) is provided on one side of the threaded protective sleeve (8). The open end of the protective cap (13) is fitted into the slot (12), and the hexagonal block (11) is located inside the protective cap (13).

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