A high-precision constant flow pressure reducing valve

Abstract

This utility model discloses a high-precision constant flow pressure reducing valve, including a pressure reducing valve with two working holes installed on one end of its surface, an air inlet on one side of the pressure reducing valve, and two sets of connecting wires connected to the other end of the pressure reducing valve. In this utility model, the connecting wires are arranged in corresponding wiring grooves on the surface of the lower pressure plate, and one end of the connecting wire passes through a corresponding rubber sleeve. This utility model uses a retaining plate and a bottom plate at the bottom of the upper pressure plate to engage with a rectangular groove and a bottom groove on the lower pressure plate, thus assembling the lower and upper pressure plates together. At this time, the connecting wires are also squeezed and fixed in the wiring grooves by the interlocking wiring grooves and rubber strips on the lower and upper pressure plates. When the connecting wire is subjected to tensile force, the tensile force acts on the connecting wire located in the wiring groove, thereby preventing the tensile force from acting on the connection end between the connecting wire and the pressure reducing valve, and thus ensuring the stability of the connection end between the connecting wire and the pressure reducing valve.

Description

Technical Field

[0001] This utility model belongs to the field of pressure reducing valve technology, specifically relating to a high-precision constant flow pressure reducing valve. Background Technology

[0002] A pressure reducing valve is a control valve that reduces the high fluid pressure (liquid, gas, etc.) at the inlet to the stable pressure required downstream by adjusting its internal structure, and maintains a constant outlet pressure when the inlet pressure or flow rate fluctuates. It is widely used in industrial and civil fields such as hydraulics, pneumatics, water supply, and chemical industries.

[0003] The pressure reducing valve is equipped with a connection cable for external connection, allowing operators to adjust the valve's accuracy and flow rate via external control devices. However, existing pressure reducing valves typically have the connection cable directly connected to the valve itself, with the other end of the cable connecting to the external control device. If the connection cable is accidentally pulled during use, the connection between the cable and the pressure reducing valve will be subjected to tensile force. Excessive tensile force can cause the connection between the cable and the pressure reducing valve to loosen, thus affecting the valve's normal operating performance. Utility Model Content

[0004] The purpose of this invention is to provide a high-precision constant flow pressure reducing valve, which aims to solve the problem that when the connecting wire is pulled due to unexpected circumstances during use, the connection between the connecting wire and the pressure reducing valve will be subjected to tensile force. If the tensile force is too large, the connection between the connecting wire and the pressure reducing valve will loosen, thereby affecting the normal operation of the pressure reducing valve.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a high-precision constant flow pressure reducing valve, comprising a pressure reducing valve, wherein two working holes are installed on the surface of one end of the pressure reducing valve, an air inlet is installed on one side of the pressure reducing valve, two sets of connecting lines are connected to the other end of the pressure reducing valve, and a pressure plate is provided on the surface of the pressure reducing valve near the connecting lines.

[0006] Two end corners are integrally connected to the bottom of the lower pressure plate near both ends. The bottom of the end corners is bonded to the surface of the pressure reducing valve. Parts of the outer walls of the two sets of connecting lines overlap the surface of the lower pressure plate. An upper pressure plate is covered on the surface of the lower pressure plate. Four rubber sleeves are bonded to one side of the lower pressure plate. One end of the connecting line passes through the inside of the rubber sleeve.

[0007] In order to allow the connecting wire to be placed between the lower pressure plate and the upper pressure plate, as a high-precision constant flow pressure reducing valve of this utility model, preferably, four semi-circular wiring grooves are respectively opened on the outer wall of the opposite side of the lower pressure plate and the upper pressure plate, and three rubber strips are bonded at equal intervals inside each wiring groove.

[0008] The lower pressure plate and the upper pressure plate are connected to form a circular structure with corresponding wiring grooves, and the connecting wires are arranged between the two corresponding wiring grooves.

[0009] In order to ensure that the lower pressure plate and the upper pressure plate can be stably connected together, as a high-precision constant flow pressure reducing valve of this utility model, preferably, a rectangular groove is opened on the outer wall of each of the two opposite wiring grooves on the lower pressure plate, the bottom of the rectangular groove is connected to the bottom groove, the bottom groove is opened at the bottom of the lower pressure plate, and a clamping plate is integrally connected to each of the two opposite wiring grooves on the upper pressure plate, and a bottom plate is integrally connected to the bottom of the clamping plate;

[0010] The upper pressure plate is engaged in the corresponding rectangular groove, and the bottom plate of the upper pressure plate is inserted into the bottom groove. The lower pressure plate and the upper pressure plate are engaged with the upper pressure plate and the clamping plate through the rectangular groove and the bottom groove to form a positioning connection.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] Arrange the connecting wires in the corresponding wiring grooves on the surface of the lower pressure plate, and pass one end of the connecting wire through the corresponding rubber sleeve. Next, engage the retaining plate and bottom plate at the bottom of the upper pressure plate with the rectangular groove and bottom groove on the lower pressure plate, thus assembling the lower and upper pressure plates together. At this point, the connecting wires are also pressed and fixed in the wiring grooves by the interlocking wiring grooves and rubber strips on the lower and upper pressure plates. During use, when the connecting wires are subjected to tensile force, this force will act on the connecting wires located in the wiring grooves. This prevents the tensile force from acting on the connection end between the connecting wires and the pressure reducing valve, thereby ensuring the stability of the connection end between the connecting wires and the pressure reducing valve. Attached Figure Description

[0013] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0014] Figure 1 This is a front view structural diagram provided for an embodiment of this application.

[0015] Figure 2 This is a schematic diagram of the rear view structure provided for an embodiment of this application.

[0016] Figure 3 This is a schematic cross-sectional view of the connecting wire, lower pressure plate, and upper pressure plate connection end provided in an embodiment of this application.

[0017] Figure 4 This is a schematic diagram of the wiring trough structure provided in an embodiment of this application.

[0018] Figure 5 This is a bottom view of the lower pressure plate structure provided in an embodiment of this application.

[0019] Figure 6 This is a bottom view of the upper pressure plate structure provided in an embodiment of this application.

[0020] In the diagram: 1. Pressure reducing valve; 2. Working hole; 3. Air inlet; 4. Connecting wire; 5. Lower pressure plate; 51. Wiring groove; 52. Rubber strip; 53. Rectangular groove; 54. Bottom groove; 6. End corner; 7. Upper pressure plate; 71. Clamping plate; 72. Base plate; 8. Rubber sleeve. Detailed Implementation

[0021] 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.

[0022] Please see Figures 1-6 The present invention provides the following technical solution: a high precision constant flow pressure reducing valve, including a pressure reducing valve 1, two working holes 2 are installed on the surface of one end of the pressure reducing valve 1, an air inlet 3 is installed on one side of the pressure reducing valve 1, two sets of connecting lines 4 are connected to the other end of the pressure reducing valve 1, and a lower pressure plate 5 is provided on the surface of the pressure reducing valve 1 near the connecting lines 4.

[0023] Pressure reducing valve 1 is connected to an external control unit via connecting cable 4. The operator sets the relevant operating standards through the control unit. In this way, pressure reducing valve 1 can work according to the set standards, thereby stably maintaining a high precision and constant flow rate to meet production needs.

[0024] Two end corners 6 are integrally connected to the bottom of the lower pressure plate 5 near both ends. The bottom of the end corners 6 are bonded to the surface of the pressure reducing valve 1. Part of the outer wall of the two sets of connecting lines 4 overlaps the surface of the lower pressure plate 5. An upper pressure plate 7 is covered on the surface of the lower pressure plate 5. Four rubber sleeves 8 are bonded to one side of the lower pressure plate 5. One end of the connecting line 4 passes through the inside of the rubber sleeve 8.

[0025] The connecting wire 4 passes through the inside of the rubber sleeve 8, which can build a protective structure at the connection end between the connecting wire 4 and the lower pressure plate 5. This way, the connecting wire 4 will not rub against the lower pressure plate 5 when it shakes, thus preventing damage to the connecting wire 4.

[0026] Preferably, four semi-circular wiring grooves 51 are respectively opened on the outer wall of the opposite side of the lower pressure plate 5 and the upper pressure plate 7, and three rubber strips 52 are bonded at equal intervals inside each wiring groove 51.

[0027] The lower pressure plate 5 and the upper pressure plate 7 are connected to form a circular structure with corresponding wiring grooves 51, and the connecting wires 4 are arranged between the two corresponding wiring grooves 51.

[0028] In practical use, after the connecting wire 4 is arranged in the wiring groove 51 of the lower pressure plate 5, the upper pressure plate 7 is installed on the lower pressure plate 5. The wiring grooves 51 on the lower pressure plate 5 and the upper pressure plate 7 are aligned, so that after the lower pressure plate 5 and the upper pressure plate 7 are connected, the connecting wire 4 can be pressed between the lower pressure plate 5 and the upper pressure plate 7 through the wiring groove 51 and the rubber strip 52.

[0029] When the rubber strip 52 is used, a certain gap is left between the outer wall of the connecting wire 4 and the inner wall of the cable tray 51, so as not to affect the heat dissipation of the connecting wire 4. At the same time, the lower pressure plate 5 and the upper pressure plate 7 will not cause excessive deformation of the connecting wire 4 after they are pressed together, so that the connecting wire 4 is in a safe working state.

[0030] Preferably, a rectangular groove 53 is provided on the outer walls of the two opposite wiring grooves 51 on the lower pressure plate 5, the bottom of the rectangular groove 53 is connected to the bottom groove 54, the bottom groove 54 is provided at the bottom of the lower pressure plate 5, and a card plate 71 is integrally connected to the outer walls of the two opposite wiring grooves 51 on the upper pressure plate 7, and a bottom plate 72 is integrally connected to the bottom of the card plate 71.

[0031] The upper pressure plate 7 is snapped into the corresponding rectangular groove 53, and the bottom plate 72 at the bottom of the upper pressure plate 7 is inserted into the bottom groove 54.

[0032] In practical use, when the upper pressure plate 7 and the lower pressure plate 5 are connected, the clamping plate 71 and the bottom plate 72 at the bottom of the upper pressure plate 7 are aligned with the rectangular groove 53 and the bottom groove 54 at the bottom of the lower pressure plate 5. Move the upper pressure plate 7 closer to the lower pressure plate 5, so that the upper pressure plate 7 will drive the clamping plate 71 and the bottom plate 72 to engage between the corresponding rectangular groove 53 and the bottom groove 54;

[0033] After docking, the card plate 71 and the bottom plate 72 will be stably positioned inside the rectangular groove 53 and the bottom groove 54 with an interference fit, thus connecting the upper pressure plate 7 and the lower pressure plate 5.

[0034] Preferably, the lower pressure plate 5 and the upper pressure plate 7 are engaged with the upper pressure plate 7 and the clamping plate 71 through the rectangular groove 53 and the bottom groove 54 to form a positioning docking.

[0035] In practical use, the connecting wire 4 is arranged in the corresponding wiring groove 51 on the surface of the lower pressure plate 5, and one end of the connecting wire 4 is passed through the corresponding rubber sleeve 8. Then, the clamping plate 71 and bottom plate 72 at the bottom of the upper pressure plate 7 are engaged with the rectangular groove 53 and bottom groove 54 on the lower pressure plate 5, thus assembling the lower pressure plate 5 and the upper pressure plate 7 together. At this time, the connecting wire 4 is also squeezed and fixed in the wiring groove 51 by the interlocking wiring groove 51 and rubber strip 52 on the lower pressure plate 5 and the upper pressure plate 7. When the connecting wire 4 is subjected to a tensile force during use, the tensile force will act on the connecting wire 4 located in the wiring groove 51. This can prevent the tensile force from acting on the connection end between the connecting wire 4 and the pressure reducing valve 1, thereby ensuring the stability of the connection end between the connecting wire 4 and the pressure reducing valve 1, and ensuring that the pressure reducing valve 1 can supply flow in a normal state.

[0036] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A high-precision constant-flow pressure-reducing valve, comprising a pressure-reducing valve (1), the surface of one end of the pressure-reducing valve (1) is provided with two working holes (2), one side of the pressure-reducing valve (1) is provided with an air inlet hole (3), and the other end of the pressure-reducing valve (1) is connected with two groups of connecting lines (4), characterized in that, The pressure reducing valve (1) has a pressure plate (5) on its surface near the connecting line (4). Two end corners (6) are integrally connected to the bottom of the lower pressure plate (5) near both ends. The bottom of the end corners (6) is bonded to the surface of the pressure reducing valve (1). Parts of the outer walls of the two sets of connecting lines (4) overlap the surface of the lower pressure plate (5). An upper pressure plate (7) is covered on the surface of the lower pressure plate (5). Four rubber sleeves (8) are bonded to one side of the lower pressure plate (5). One end of the connecting line (4) passes through the inside of the rubber sleeve (8).

2. The high-precision constant flow pressure reducing valve according to claim 1, characterized in that: Four semi-circular wiring grooves (51) are respectively opened on the outer wall of the opposite side of the lower pressure plate (5) and the upper pressure plate (7). Three rubber strips (52) are bonded at equal intervals inside each wiring groove (51).

3. The high-precision constant flow pressure-reducing valve according to claim 1, characterized in that: The lower pressure plate (5) and the upper pressure plate (7) are connected to the corresponding wiring grooves (51) to form a circular structure, and the connecting line (4) is arranged between the two corresponding wiring grooves (51).

4. The high-precision constant flow pressure-reducing valve according to claim 1, characterized in that: On the two opposite wiring grooves (51) on the lower pressure plate (5), a rectangular groove (53) is opened on each of the outer walls of the two sides. The bottom of the rectangular groove (53) is connected to the bottom groove (54), which is located at the bottom of the lower pressure plate (5).

5. The high-precision constant flow pressure-reducing valve according to claim 1, characterized in that: On the upper pressure plate (7), a card plate (71) is integrally connected to the outer walls of the two opposite wiring grooves (51) on both sides, and a bottom plate (72) is integrally connected to the bottom of the card plate (71).

6. The high-precision constant flow pressure-reducing valve according to claim 5, characterized in that: The upper pressure plate (7) is snapped into the corresponding rectangular groove (53), and the bottom plate (72) at the bottom of the upper pressure plate (7) is inserted into the bottom groove (54).

7. The high-precision constant flow pressure-reducing valve according to claim 1, characterized in that: The lower pressure plate (5) and the upper pressure plate (7) are engaged with the upper pressure plate (7) and the clamping plate (71) through the rectangular groove (53) and the bottom groove (54) to form a positioning dock.

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