Pressure independent control valve

Abstract

The utility model provides a pressure-independent control valve, and belongs to the technical field of valve manufacturing. The problem that an existing control valve does not have the function of preventing a pipeline from falling off is solved. The pressure-independent control valve comprises a main valve body, connecting ports are formed in the front side and the rear side of the main valve body, the front side of the main valve body is communicated with a water inlet testing nozzle and a water return testing nozzle, an upper valve body is movably installed at the top of the main valve body, a protective cap is movably installed at the top end of the upper valve body, and the bottom of the main valve body is sleeved with a valve deck in a threaded mode. An upper valve element is fixedly installed in an inner cavity of the upper valve body, a lower valve element is fixedly installed at the bottom of an inner cavity of the main valve body, anti-falling mechanisms are arranged on the front side and the rear side of the main valve body, connecting plates are fixedly installed on the two sides of each anti-falling mechanism through rotating shafts, and anti-falling shells are fixedly connected to the front sides and the rear sides, opposite to each other, of the two connecting plates. The water leakage detection device has the advantages of water leakage detection and the like.

Description

Technical Field

[0001] The utility model belongs to the technical field of valve manufacturing, and particularly relates to a pressure-independent control valve. Background Technique

[0002] A control valve consists of two main components: a valve body assembly and an actuator assembly. Variations in the four types of valves divided into four major series can result in many different applicable structures.

[0003] After retrieval, the patent publication number is CN209370552U, and the name is a control valve, including a valve body component, a valve stem component, a first flow path port, and a second flow path port. Through research and analysis, it is found that this device can reduce the retention of electroplating residue during the electroplating process of the valve body component. However, to some extent, it still has the following disadvantages.

[0004] When this device is in use, it does not have the function of preventing the pipeline from falling off. After long-term use, the pipeline may fall off from the device, which will greatly reduce the practicality of the device. And when in use, generally, it is impossible to detect whether the device leaks. When in use, it can only be manually detected by staff, which not only increases the workload of the staff but also reduces the efficiency of equipment maintenance. To solve the above technical problems, we have designed a pressure-independent control valve. Summary of the Invention

[0005] The purpose of the utility model is to provide a pressure-independent control valve with leak detection for the problems existing in the prior art.

[0006] The purpose of the utility model can be achieved by the following technical solutions: a pressure-independent control valve, including a main valve body, connection ports are provided on both the front and rear sides of the main valve body, an inlet test nozzle and a return water test nozzle are respectively communicated on the front side of the main valve body, an upper valve body is movably installed on the top of the main valve body, a protective cap is movably installed at the top of the upper valve body, a valve cover is threadedly sleeved at the bottom of the main valve body, an upper valve core is fixedly installed in the inner cavity of the upper valve body, a lower valve core is fixedly installed at the bottom of the inner cavity of the main valve body, anti-disconnection mechanisms are provided on both the front and rear sides of the main valve body, connecting plates are fixedly installed on both sides of the anti-disconnection mechanism through rotating shafts, and anti-disconnection shells are fixedly connected to the opposite sides of the two connecting plates in the front and rear directions. In practical applications, the cooperation of the inlet test nozzle and the return water test nozzle can test the operation of the device.

[0007] This pressure-independent control valve mainly increases the protection of the device through the cooperation of a water immersion sensor, a connecting plate, an upper valve core, an indicator light, and a sealing gasket. When in use, it can detect whether the device leaks water, enabling the staff to quickly handle it.

[0008] In the above-mentioned pressure-independent control valve, an O-ring is movably sleeved in the inner cavity of the main valve body and on the surface of the valve cover. A protective cap is fixedly installed at the top of the upper valve body by means of threads, and the color of the protective cap is white. In practical applications, the O-ring can increase the sealing performance between the valve cover and the main valve body to prevent leakage. By setting the protective cap, the upper valve core can be adjusted to regulate the water flow rate of the equipment.

[0009] In the above-mentioned pressure-independent control valve, a locking cap is movably sleeved on the surface of the upper valve body, and the inner cavity of the locking cap is threadedly connected to the main valve body by means of threads. In practical applications, setting the locking cap can fixedly install the upper valve body onto the main valve body.

[0010] In the above-mentioned pressure-independent control valve, sealing plugs are movably sleeved on the surfaces of the water inlet test nozzle and the water return test nozzle. The sealing plug at the top of the water inlet test nozzle is red, and the sealing plug at the top of the water return test nozzle is blue. In practical applications, the sealing plugs can block the water inlet test nozzle and the water return test nozzle to prevent foreign objects from entering the equipment when it is not in use.

[0011] In the above-mentioned pressure-independent control valve, mounting screw plates are fixedly connected to both the upper and lower sides of the anti-shell detachment. A fixing bolt is installed through the left side of the left mounting screw plate, and a nut is threadedly sleeved on the surface of the fixing bolt. Threaded holes are provided on opposite sides of the two anti-shell detachments. In practical applications, the threaded holes facilitate the user to install the water immersion sensor onto the anti-shell detachment.

[0012] In the above-mentioned pressure-independent control valve, a water immersion sensor is fixedly installed in the inner cavity of the anti-shell detachment by means of threads, and an indicator light is fixedly connected to the surface of the water immersion sensor. In practical applications, by setting the indicator light, the working state of the water immersion sensor can be displayed to facilitate the staff to analyze it.

[0013] In the above-mentioned pressure-independent control valve, a sealing gasket is fixedly connected to the inner cavity of the anti-shell detachment, and the number of anti-shell detachments is four. In practical applications, by setting the sealing gasket, the sealing performance between the anti-shell detachment and the pipeline can be increased.

[0014] Compared with the prior art, the advantages of this pressure-independent control valve are as follows: when the equipment is connected to the pipeline, the tightness of the connection between the pipeline and the equipment can be increased to prevent the pipeline from falling off during use. At the same time, during use, the sealing performance of the equipment can also be monitored in real time, enabling the staff to promptly repair and handle the fault when the equipment leaks. Brief Description of the Drawings

[0015] Figure 1 This is a three-dimensional structure diagram of the pressure-independent control valve.

[0016] Figure 2 This is a left - side sectional view schematic diagram of the structure of the pressure - independent control valve.

[0017] Figure 3 This is a sectional view schematic diagram of the anti - detachment mechanism of the local structure of the pressure - independent control valve.

[0018] Figure 4 This is a left - side view schematic diagram of the structure of the pressure - independent control valve.

[0019] Figure 5 This is a right - side view schematic diagram of the structure of the pressure - independent control valve.

[0020] In the figure, 1 is the main valve body; 2 is the connection port; 3 is the inlet test nozzle; 4 is the return water test nozzle; 5 is the locking cap; 6 is the upper valve body; 7 is the protective cap; 8 is the valve cover; 9 is the anti - detachment mechanism; 10 is the lower valve core; 11 is the O - ring; 12 is the anti - detachment shell; 13 is the installation screw plate; 14 is the nut; 15 is the fixing bolt; 16 is the threaded hole; 17 is the water immersion sensor; 18 is the connecting plate; 19 is the upper valve core; 20 is the indicator light; 21 is the gasket. Specific implementation mode

[0021] The following are specific embodiments of the present invention and in combination with the attached drawings, the technical solutions of the present invention are further described, but the present invention is not limited to these embodiments.

[0022] As Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 5 shown, this pressure - independent control valve includes a main valve body 1. Connection ports 2 are provided on both the front and rear sides of the main valve body 1. The front side of the main valve body 1 is respectively communicated with an inlet test nozzle 3 and a return water test nozzle 4. An upper valve body 6 is movably installed on the top of the main valve body 1. A protective cap 7 is movably installed at the top end of the upper valve body 6. A valve cover 8 is threadedly sleeved at the bottom of the main valve body 1. An upper valve core 19 is fixedly installed in the inner cavity of the upper valve body 6. A lower valve core 10 is fixedly installed at the bottom of the inner cavity of the main valve body 1. Anti - detachment mechanisms 9 are provided on both the front and rear sides of the main valve body 1. Both sides of the anti - detachment mechanism 9 are fixedly installed with connecting plates 18 through rotating shafts. Anti - detachment shells 12 are fixedly connected to the opposite sides of the two connecting plates 18 in the front - rear direction.

[0023] During actual manufacturing, an O - ring 11 is movably sleeved on the surface of the main valve body 1 and located on the surface of the valve cover 8. The protective cap 7 is fixedly installed at the top end of the upper valve body 6 by threading, and the color of the protective cap 7 is white.

[0024] During actual manufacturing, a locking cap 5 is movably sleeved on the surface of the upper valve body 6, and the inner cavity of the locking cap 5 is threadedly connected to the main valve body 1 by threading.

[0025] During actual manufacturing, sealing plugs are movably sleeved on the surfaces of the water inlet test nozzle 3 and the water return test nozzle 4. The sealing plug at the top of the water inlet test nozzle 3 is red, and the sealing plug at the top of the water return test nozzle 4 is blue.

[0026] During actual manufacturing, mounting screw plates 13 are fixedly connected to both the upper and lower sides of the anti - shell - shedding 12. A fixing bolt 15 is installed through the left side of the left mounting screw plate 13. A nut 14 is thread - sleeved on the surface of the fixing bolt 15. Threaded holes 16 are opened on both opposite sides of the two anti - shell - shedding 12.

[0027] During actual manufacturing, a water immersion sensor 17 is fixedly installed in the inner cavity of the threaded hole 16 through threads. An indicator light 20 is fixedly connected to the surface of the water immersion sensor 17.

[0028] During actual manufacturing, a sealing gasket 21 is fixedly connected to the inner cavity of the anti - shell - shedding 12. The number of anti - shell - shedding 12 is four. The output end of the water immersion sensor 17 is electrically connected to the remote control platform, and the input end of the indicator light 20 is electrically connected to the water immersion sensor 17.

[0029] During actual manufacturing, the user first installs the upper valve body 6 onto the main valve body 1 through the locking cap 5, so that the upper valve body 6 can drive the upper valve core 19 to be installed into the main valve body 1. Subsequently, the user installs the protective cap 7 onto the upper valve core 19 to facilitate the staff to adjust the upper valve core 19. At the same time, the user fixes the lower valve core 10 at the bottom of the main valve body 1 through the valve cover 8. After completion, the user rotates the upper valve core 19 through the protective cap 7 to adjust the water flow rate of the lower valve core 10. Then the user connects the pipeline to the connection port 2. After the connection is completed, the user adjusts the anti - detachment mechanism 9. The user first closes the two anti - shell - shedding 12, and then fixes the two anti - shell - shedding 12 together through the fixing bolt 15 and the nut 14, so that the two anti - shell - shedding 12 can clamp and limit the pipeline to prevent the pipeline from falling off the device randomly. During the limiting process, the anti - shell - shedding 12 will seal the pipeline through the sealing gasket 21. At the same time, the water immersion sensor 17 will also monitor the water immersion inside the anti - shell - shedding 12. If the water immersion sensor 17 detects water leakage, the water immersion sensor 17 will send information to the control platform, enabling the staff to perform maintenance and processing in a timely manner.

[0030] The content not described in detail in this specification belongs to the prior art well - known to those skilled in the art. The specific embodiments described herein are merely examples to illustrate the spirit of the present utility model. Those skilled in the technical field to which the present utility model belongs can make various modifications or supplements to the described specific embodiments or use similar methods for substitution, but will not deviate from the spirit of the present utility model or exceed the scope defined by the appended claims.

Claims

1. A pressure-independent control valve, comprising a main valve body (1), characterized in that: Both the front and rear sides of the main valve body (1) are provided with connection ports (2). The front side of the main valve body (1) is respectively communicated with a water inlet test nozzle (3) and a water return test nozzle (4). The top of the main valve body (1) is movably installed with an upper valve body (6). The top of the upper valve body (6) is movably installed with a protective cap (7). The bottom of the main valve body (1) is threadedly sleeved with a valve cover (8). The inner cavity of the upper valve body (6) is fixedly installed with an upper valve core (19). The bottom of the inner cavity of the main valve body (1) is fixedly installed with a lower valve core (10). Anti-disengagement mechanisms (9) are arranged on both the front and rear sides of the main valve body (1). Both sides of the anti-disengagement mechanism (9) are fixedly installed with connecting plates (18) through rotating shafts. Anti-disengagement shells (12) are fixedly connected to the front and rear opposite sides of the two connecting plates (18).

2. The pressure-independent control valve according to claim 1, characterized in that: An O-ring (11) is movably sleeved on the surface of the valve cover (8) in the inner cavity of the main valve body (1). The protective cap (7) is fixedly installed at the top of the upper valve body (6) by threads. The color of the protective cap (7) is white.

3. The pressure-independent control valve according to claim 1, wherein: A locking cap (5) is movably sleeved on the surface of the upper valve body (6). The inner cavity of the locking cap (5) is threadedly connected to the main valve body (1) by threads.

4. The pressure-independent control valve according to claim 1, wherein: Sealing plugs are movably sleeved on the surfaces of the water inlet test nozzle (3) and the water return test nozzle (4). The sealing plug at the top of the water inlet test nozzle (3) is red, and the sealing plug at the top of the water return test nozzle (4) is blue.

5. The pressure-independent control valve according to claim 1, characterized in that: Mounting screw plates (13) are fixedly connected to both the upper and lower sides of the anti-disengagement shell (12). A fixing bolt (15) is installed through the left side of the left mounting screw plate (13). A nut (14) is threadedly sleeved on the surface of the fixing bolt (15). Threaded holes (16) are opened on the opposite sides of the two anti-disengagement shells (12).

6. The pressure-independent control valve according to claim 5, characterized in that: A water immersion sensor (17) is fixedly installed in the inner cavity of the threaded hole (16) by threads. An indicator light (20) is fixedly connected to the surface of the water immersion sensor (17).

7. The pressure-independent control valve according to claim 1, wherein: A sealing gasket (21) is fixedly connected to the inner cavity of the anti-disengagement shell (12). The number of the anti-disengagement shells (12) is four.

Images