Low-temperature pressure regulating and throttling structure

Abstract

The low-temperature pressure-regulating throttling structure comprises a regulating valve body, fixing pipes are welded to the left side and the right side of the regulating valve body, a frustum-shaped clamping groove is formed in the side, close to the regulating valve body, of each fixing pipe, and a movable cavity is formed in the side, away from the regulating valve body, of each fixing pipe; a connecting pipe is arranged on the side, away from the adjusting valve body, of the fixing pipe, an exchange pipe is welded to the side, close to the fixing pipe, of the connecting pipe, and a filter screen body is installed on the side, close to the fixing pipe, of the exchange pipe. The threaded sleeve is driven to slide to the surface of the fixed pipe by rotating the threaded sleeve, so that the insertion rod is pressed inwards and is driven to press the tail part of the movable hook body, the movable hook body is driven to rotate to be separated from the fixed hook body, and then the connecting pipe is pulled out to replace the filter screen body; therefore, the purpose of conveniently replacing the filter screen body can be achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of pressure regulating valves, in particular to a low-temperature pressure regulating throttling structure. Background Art

[0002] The pressure regulating valve is also called self-operated balancing valve, flow control valve, flow controller, dynamic balancing valve, and flow balancing valve. It is an intuitive and simple flow regulation and control device. The flow regulating valve used in the pipeline network can directly set the flow according to the design. The valve can automatically eliminate the flow deviation caused by the residual pressure head and pressure fluctuation of the pipeline under the action of water. No matter how the system pressure changes, the set flow rate is maintained unchanged. These functions of the valve enable the pipeline network flow regulation to be completed at one time, turning the network adjustment work into a simple flow distribution, and effectively solving the hydraulic imbalance of the pipeline network. The pressure regulating valve has low temperature, normal temperature and high temperature operating environments, and is mainly used in water systems such as centralized heating or cooling, so that the pipeline network flow is distributed on demand, eliminating the hydraulic imbalance of the water system, and solving the problem of uneven hot and cold.

[0003] The utility model patent with patent number CN202122001687.9 discloses a pressure regulating valve, which relates to the field of regulating valves. In view of the problem that the existing pressure regulating valves have no filtering function, the following solution is proposed, which includes a regulating valve body, flanges are fixedly installed on both sides of the regulating valve body, and connecting pipes are fixedly installed on both sides of the two flanges away from the regulating valve body, and the two flanges are provided with mounting grooves with the same structure, and the two mounting grooves are provided with resisting devices, and the two flanges are provided with filtering devices with the same structure, and sealing gaskets are installed between the two flanges and the same group of connecting pipes. The utility model has a novel structure, and the device plays a role in filtering impurities in the water through the setting of the filtering device, thereby improving the practicality of the device, and through the setting of the limiting device, it is convenient for the staff to disassemble and assemble the filtering device for cleaning, thereby improving the service life of the device.

[0004] However, when the pressure regulating valve is disassembled to clean the filter, the two flanges need to be disassembled. Since the flanges are installed with multiple pins, tools are needed to remove the pins when replacing the filter, which is cumbersome, time-consuming and labor-intensive. For this reason, we propose a pressure regulating throttling structure that can quickly and conveniently replace the filter to solve the above technical defects. Utility Model Content

[0005] The purpose of the utility model is to provide a low-temperature pressure regulating and throttling structure to solve the technical problems mentioned in the above background technology.

[0006] The utility model solves the above technical problems with the following technical solutions: a low-temperature pressure regulating and throttling structure, comprising a regulating valve body: fixed pipes are welded on both sides of the regulating valve body, a frustum-shaped slot is provided on the side of the fixed pipe close to the regulating valve body, a movable cavity is provided on the side of the fixed pipe away from the regulating valve body, a connecting pipe is arranged on the side of the fixed pipe away from the regulating valve body, an exchange pipe is welded on the side of the connecting pipe close to the fixed pipe, a filter body is installed on the side of the exchange pipe close to the fixed pipe, a frustum-shaped sealing sleeve used in conjunction with the inner cavity of the frustum-shaped slot is provided on the surface of the exchange pipe, a plurality of fixed hooks are welded on the side of the connecting pipe close to the fixed pipe, a plurality of fixed blocks are welded on the surface of the inner cavity of the movable cavity, the inner cavity of the fixed block is rotatably connected with a movable hook used in conjunction with the fixed hook, the inner cavity of the movable cavity is slidably connected with a plug rod extending to the outside of the fixed pipe, one end of the plug rod is located in the inner cavity of the movable cavity and faces the tail of the movable hook, and a spring 2 is fixedly connected between the head of the movable hook and the surface of the inner cavity of the movable cavity.

[0007] Preferably, the inner cavity of the frustum-shaped slot is communicated with the inner cavity of the regulating valve body, and the inner cavity of the frustum-shaped slot is communicated with the inner cavity of the movable cavity.

[0008] Preferably, a threaded sleeve is threadedly connected to the surface of the connecting pipe.

[0009] Preferably, a compression chamber for use with the insertion rod is provided on a side of the threaded sleeve close to the insertion rod.

[0010] Preferably, a spring 1 is sleeved on the surface of one end of the insertion rod located outside the fixed tube, and two ends of the spring 1 are fixedly connected to the spring 1 and the outer surface of the fixed tube respectively.

[0011] Preferably, an arc-shaped cap is welded on a side of the insertion rod away from the movable hook body.

[0012] 1. The beneficial effect of the utility model is that the utility model drives the threaded sleeve to slide to the surface of the fixed pipe by rotating the threaded sleeve, thereby pressing the insertion rod inward, driving the insertion rod to press the tail of the movable hook body, thereby driving the movable hook body to rotate and disengage the fixed hook body, and then pulling out the connecting pipe to replace the filter body, thereby achieving the purpose of conveniently replacing the filter body.

[0013] 2. The utility model provides an arc cap. When the threaded sleeve is rotated to drive the threaded sleeve to slide on the surface of the fixed pipe, the arc-shaped setting of the arc cap reduces the resistance between the arc cap and the inner cavity of the compression chamber, making it easier to press the insertion rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The above and / or other advantages of the present invention will become clearer and easier to understand through the detailed description made in conjunction with the following drawings, which are only schematic and do not limit the present invention, wherein:

[0015] Figure 1 This is a three-dimensional exploded view of an embodiment of the utility model;

[0016] Figure 2 For an embodiment of the utility model Figure 2 Enlarged view of point A in the middle;

[0017] Figure 3 This is a partial cross-sectional view of a front view of an embodiment of the utility model;

[0018] Figure 4 For an embodiment of the utility model Figure 3 A partial enlarged view.

[0019] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0020] 1. Control valve body, 2. Fixed pipe, 3. Cone-shaped slot, 4. Movable chamber, 5. Connecting pipe, 6. Threaded sleeve, 7. Exchange pipe, 8. Filter body, 9. Cone-shaped sealing sleeve, 10. Fixed hook body, 11. Compression chamber, 12. Fixed block, 13. Movable hook body, 14. Insert rod, 15. Spring 1, 16. Arc cap, 17. Spring 2. DETAILED DESCRIPTION

[0021] Hereinafter, embodiments of the low-temperature pressure regulating and throttling structure of the present invention will be described with reference to the accompanying drawings.

[0022] The embodiments described herein are specific embodiments of the present invention, which are used to illustrate the concept of the present invention, are explanatory and exemplary, and should not be interpreted as limiting the embodiments of the present invention and the scope of the present invention. In addition to the embodiments described herein, those skilled in the art can also adopt other obvious technical solutions based on the claims and the contents disclosed in the specification of this application, including technical solutions that adopt any obvious replacement and modification of the embodiments described herein.

[0023] The drawings of this specification are schematic diagrams, which assist in explaining the concept of the utility model and schematically show the shapes of various parts and their mutual relationships. Please note that in order to clearly show the structure of various components of the embodiments of the utility model, the drawings are not drawn according to the same scale. The same reference numerals are used to represent the same parts.

[0024] Figure 1-4A low-temperature pressure regulating and throttling structure of an embodiment of the utility model is shown, which includes a regulating valve body 1: fixed pipes 2 are welded on both sides of the regulating valve body 1, a frustum-shaped groove 3 is provided on the side of the fixed pipe 2 close to the regulating valve body 1, and an active cavity 4 is provided on the side of the fixed pipe 2 away from the regulating valve body 1, the inner cavity of the frustum-shaped groove 3 is connected to the inner cavity of the regulating valve body 1, and the inner cavity of the frustum-shaped groove 3 and the active cavity 4 are connected, a connecting pipe 5 is arranged on the side of the fixed pipe 2 away from the regulating valve body 1, and a threaded sleeve 6 is threadedly connected to the surface of the connecting pipe 5, an exchange pipe 7 is welded on the side of the connecting pipe 5 close to the fixed pipe 2, and a filter screen body 8 is installed on the side of the exchange pipe 7 close to the fixed pipe 2, and a frustum-shaped sealing sleeve 9 used in conjunction with the inner cavity of the frustum-shaped groove 3 is provided on the surface of the exchange pipe 7 close to the fixed pipe 2, a plurality of fixed hooks 10 are welded on the side of the connecting pipe 5 close to the fixed pipe 2, a plurality of fixed blocks 12 are welded on the surface of the inner cavity of the active cavity 4, and the inner cavity of the fixed block 12 A movable hook body 13 used in conjunction with the fixed hook body 10 is rotatably connected, and an insertion rod 14 extending to the outside of the fixed tube 2 is slidably connected to the inner cavity of the movable chamber 4. One end of the insertion rod 14 is located in the inner cavity of the movable chamber 4 and is directly opposite to the tail of the movable hook body 13. A spring 2 17 is fixedly connected between the head of the movable hook body 13 and the surface of the inner cavity of the movable chamber 4. A spring 15 is sleeved on the surface of the insertion rod 14 at one end of the outer side of the fixed tube 2. The two ends of the spring 15 are respectively fixedly connected to the spring 15 and the outer surface of the fixed tube 2. An arc cap 16 is welded on the side of the insertion rod 14 away from the movable hook body 13. Through the setting of the arc cap 16, when the rotating threaded sleeve 6 drives the threaded sleeve 6 to slide on the surface of the fixed tube 2, due to the arc setting of the arc cap 16, the resistance between the arc cap 16 and the inner cavity of the compression chamber 11 is reduced, so that the insertion rod 14 can be pressed more smoothly. A compression chamber 11 used in conjunction with the insertion rod 14 is opened on the side of the threaded sleeve 6 close to the insertion rod 14.

[0025] Working principle: When the utility model is used, the user drives the threaded sleeve 6 to slide to the surface of the fixed tube 2 by rotating the threaded sleeve 6, thereby inserting the arc cap 16 into the inner cavity of the compression chamber 11 in the threaded sleeve 6, and then continues to rotate the threaded sleeve 6. Due to the gradually shrinking characteristic of the inner cavity of the compression chamber 11, the threaded sleeve 6 will be driven to press the insertion rod 14 inward, thereby driving the insertion rod 14 to slide in the direction of the movable hook body 13, and at the same time compressing the spring 15, and then driving the insertion rod 14 to press the tail of the movable hook body 13, so that the movable hook body 13 rotates in the inner cavity of the fixed block 12, and at the same time compressing the spring 2 17, thereby driving the head of the movable hook body 13 and the fixed hook body 10 to separate, and then pull out the connecting tube 5, and remove the conical sealing sleeve 9 from the surface of the exchange tube 7, and replace the filter body 8. The pressure regulating and throttling structure can realize convenient and fast replacement of the filter body 8.

[0026] To sum up: the low-temperature pressure regulating throttling structure drives the threaded sleeve 6 to slide to the surface of the fixed tube 2 by rotating the threaded sleeve 6, thereby pressing the insertion rod 14 inward, driving the insertion rod 14 to press the tail of the movable hook body 13, thereby driving the movable hook body 13 to rotate and disengage from the fixed hook body 10, and then pulling out the connecting tube 5 to replace the filter body 8, thereby achieving the purpose of conveniently replacing the filter body 8.

[0027] The technical features disclosed above are not limited to the disclosed combinations with other features. Those skilled in the art may also make other combinations between the technical features according to the purpose of the utility model to achieve the purpose of the utility model.

Claims

1. A low-temperature pressure regulating and throttling structure, characterized in that: The invention comprises a regulating valve body (1): a fixed pipe (2) is welded to both left and right sides of the regulating valve body (1); a frustum-shaped groove (3) is provided on the side of the fixed pipe (2) close to the regulating valve body (1); a movable cavity (4) is provided on the side of the fixed pipe (2) away from the regulating valve body (1); a connecting pipe (5) is provided on the side of the fixed pipe (2) away from the regulating valve body (1); an exchange pipe (7) is welded to the side of the connecting pipe (5) close to the fixed pipe (2); a filter screen body (8) is installed on the side of the exchange pipe (7) close to the fixed pipe (2); a surface of the exchange pipe (7) is provided with a filter element for use in conjunction with the inner cavity of the frustum-shaped groove (3) A conical sealing sleeve (9) is provided, a plurality of fixed hook bodies (10) are welded to one side of the connecting pipe (5) close to the fixed pipe (2), a plurality of fixed blocks (12) are welded to the surface of the inner cavity of the movable chamber (4), the inner cavity of the fixed block (12) is rotatably connected to a movable hook body (13) used in conjunction with the fixed hook body (10), the inner cavity of the movable chamber (4) is slidably connected to an insertion rod (14) extending to the outside of the fixed pipe (2), one end of the insertion rod (14) is located in the inner cavity of the movable chamber (4) and is directly opposite to the tail of the movable hook body (13), and a spring 2 (17) is fixedly connected between the head of the movable hook body (13) and the surface of the inner cavity of the movable chamber (4).

2. A low-temperature pressure regulating and throttling structure according to claim 1, characterized in that: The inner cavity of the frustum-shaped slot (3) is in communication with the inner cavity of the regulating valve body (1), and the inner cavity of the frustum-shaped slot (3) is in communication with the inner cavity of the movable cavity (4).

3. A low-temperature pressure regulating and throttling structure according to claim 2, characterized in that: The surface of the connecting pipe (5) is threadedly connected with a threaded sleeve (6).

4. A low-temperature pressure regulating and throttling structure according to claim 3, characterized in that: A compression chamber (11) for use with the insertion rod (14) is provided on one side of the threaded sleeve (6) close to the insertion rod (14).

5. A low-temperature pressure regulating and throttling structure according to claim 4, characterized in that: An arc-shaped cap (16) is welded to a side of the insertion rod (14) away from the movable hook body (13).

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