A regulating valve

Abstract

The utility model relates to a regulating valve, especially to a regulating valve preventing medium from remaining in the valve body, which comprises a main body, the main body is equipped with an installation hole for matching the valve core, the main body is equipped with a first installation opening and a second installation opening which are in communication with the installation hole and the outside of the main body, the main body forms a first flow channel through the first installation opening to the installation hole, and forms a second flow channel through the second installation opening to the installation hole, the inner wall bottom of the second flow channel is equipped with a second cavity surface extending from the second installation opening to the installation hole and having a flat structure, and a second guide surface from the installation hole to the second cavity surface, the utility model pulls the two installation openings to the internal passage of the valve body, and the guide surface is added in the process of the valve core coming out to the two flow channels, the optimized regulating valve solves the problem of medium remaining in the passage, can make the medium discharge quickly, avoids producing medium pollution, the utility model also has the characteristics of simple structure, convenient processing and easy assembly, and has strong practicality.

Description

Technical Field

[0001] This utility model relates to a regulating valve, and more particularly to a regulating valve that prevents media residue in the valve body. Background Technology

[0002] Existing pneumatic and electric control valves on the market have residual media in their valve passages, which causes rust on the valve body and secondary pollution from the media, resulting in significant losses in the medical and chemical industries. This not only increases costs but also affects product quality. For example, the patent with announcement number CN210318514U, entitled "A Throttling and Speed ​​Limiting Structure for Control Valves," also suffers from this problem. When the bottom of the valve body is bent, residue will be generated. How to solve the problem of residue in control valves is a technical problem that we need to solve now. Utility Model Content

[0003] In view of the shortcomings of existing technology, this utility model provides a regulating valve.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a regulating valve, characterized in that it includes a main body, an installation hole for mating with a valve core is provided inside the main body, a first installation port and a second installation port are provided on the main body to connect the installation hole and the outside of the main body, the main body forms a first flow channel through the first installation port to the installation hole, and forms a second flow channel through the second installation port to the installation hole, the bottom of the inner wall of the first flow channel is provided with a first cavity surface extending from the first installation port to the installation hole and having a straight structure, and a first guide surface from the installation hole to the first cavity surface, the bottom of the inner wall of the second flow channel is provided with a second cavity surface extending from the second installation port to the installation hole and having a straight structure, and a second guide surface from the installation hole to the second cavity surface.

[0005] The mounting hole has a Z-axis formed along the axial direction, and the first flow channel and the second flow channel respectively form the X-axis and Y-axis along the axial direction. The main body includes a projection surface perpendicular to the left and right directions. The X-axis, Y-axis and Z-axis form a first projection line, a second projection line and a third projection line through the projection surface, respectively. The angle between the first projection line and the third projection line is α, and the angle between the second projection line and the third projection line is β. α and β are greater than or equal to 90 degrees.

[0006] The mounting hole has a Z-axis formed along the axial direction. The first flow channel and the second flow channel form X-axis and Y-axis respectively along the axial direction. The main body includes a projection surface perpendicular to the left and right directions. The X-axis, Y-axis and Z-axis form a first projection line, a second projection line and a third projection line respectively through the projection surface. The angle between the first projection line and the third projection line is α, and the angle between the second projection line and the third projection line is β. α is an obtuse angle and β is an acute angle. The top of the main body is provided with a mounting groove that matches the mounting hole. A valve stem that reciprocates along the axial direction of the mounting groove and matches the mounting hole is mounted on the mounting groove. The valve stem is provided with a guide sleeve that matches the mounting groove and a valve disc for sealing the mounting hole. The valve disc is threaded to the valve stem. A bushing that limits the valve disc is provided between the valve disc and the guide sleeve. The end of the valve disc is provided with a tapered sleeve. The tapered sleeve has a taper that gradually increases in cross-section from the outside to the inside. The flow rate of the main body is adjusted by the tapered sleeve reciprocating with the valve stem.

[0007] The second guide surface is arranged around the mounting port. The second guide surface has an A end and a B end that are set at different heights. The second guide surface is connected to the top position of the mounting hole through the A end and connected to the second cavity surface through the B end to form a transition surface from the mounting hole to the second cavity surface.

[0008] The X-axis coincides with or is parallel to the Y-axis.

[0009] The first guide surface has a smooth curved surface structure.

[0010] The radius of the rounded corners of the curved surface structure is 3 centimeters.

[0011] Both the first and second mounting ports are optical aperture structures that facilitate welding.

[0012] Both the first mounting port and the second mounting port are threaded hole structures that facilitate threaded connection.

[0013] The bottom of the main body is provided with a raised part for raising the main body.

[0014] The beneficial effects of this utility model are as follows: This utility model flattens the two mounting ports to the internal channels of the valve body, and adds a guide surface in the process of the valve core coming out to the two flow channels. The optimized regulating valve solves the problem of medium residue in the channel, which can make the medium quickly discharged and avoid medium pollution. This utility model also has the characteristics of simple structure, convenient processing and easy assembly, and strong practicality. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of Example 1;

[0016] Figure 2 This is an exploded view of the structure of Example 1;

[0017] Figure 3This is a cross-sectional view of the main body in Example 1;

[0018] Figure 4 This is a cross-sectional view of Example 1;

[0019] Figure 5 This is a cross-sectional view of Example 2;

[0020] Figure 6 This is a cross-sectional view of Example 2 after the valve stem has been opened;

[0021] Figure 7 This is a schematic diagram of the valve stem structure in Example 2.

[0022] In the figure: 100, main body; 110, mounting hole; 120, first mounting port; 130, second mounting port; 140, first flow channel; 141, first cavity surface; 142, first guide surface; 150, second flow channel; 151, second cavity surface; 152, second guide surface; 153, end A; 154, end B; 160, projection surface; 161, first projection line; 162, second projection line; 163, third projection line; 170, raised part; 180, mounting groove; 210, valve stem; 220, valve disc; 211, guide sleeve; 230, bushing; 240, cone sleeve; 212, pressure relief hole; 213, sealing ring; 241, sealing gasket. Detailed Implementation

[0023] Example 1; as Figures 1-4 As shown, a regulating valve includes a body 100. The body 100 has a mounting hole 110 for mating with a valve core. The body 100 also has a first mounting port 120 and a second mounting port 130 communicating with the mounting hole 110 and the outside of the body 100. The body 100 forms a first flow channel 140 through the first mounting port 120 to the mounting hole 110, and a second flow channel 150 through the second mounting port 130 to the mounting hole 110. The bottom of the inner wall of the first flow channel 140 has a section extending from the first mounting port 120 to the mounting hole 110. The first cavity surface 141 extends in the 0 direction and has a straight structure, and the first guide surface 142 extends from the mounting hole 110 to the first cavity surface 141. The bottom of the inner wall of the second flow channel 150 is provided with a second cavity surface 151 extending from the second mounting port 130 to the mounting hole 110 and having a straight structure, and a second guide surface 152 extends from the mounting hole 110 to the second cavity surface 151. The upper part of the valve core is provided with a valve cover 200. The first cavity surface 141 and the second cavity surface 151 are straight structures to prevent the medium from stagnating.

[0024] The mounting hole 110 has a Z-axis formed along the axial direction. The first flow channel 140 and the second flow channel 150 respectively form the X-axis and Y-axis along the axial direction. The main body 100 includes a projection surface 160 perpendicular to the left and right directions. The X-axis, Y-axis and Z-axis form a first projection line 161, a second projection line 162 and a third projection line 163 respectively through the projection surface 160. The angle between the first projection line 161 and the third projection line 163 is α, and the angle between the second projection line 162 and the third projection line 163 is β. α and β are greater than or equal to 90 degrees. When the angle is 90 degrees, the medium can flow out with the cooperation of the first guide surface 142 and the second guide surface 152. The effect will be better if the angle is greater than 90 degrees.

[0025] The second guide surface 152 is arranged around the mounting port. The second guide surface 152 has an A end 153 and a B end 154 arranged at different heights. The second guide surface 152 is connected to the top position of the mounting hole 110 through the A end 153 and is connected to the second cavity surface 151 through the B end 154 to form a transition surface from the mounting hole 110 to the second cavity surface 151. The second guide surface 152 is arranged around the mounting hole 110 mainly to prevent media residue during production, and the effect is very good.

[0026] The X-axis and Y-axis can be either coincident or parallel. If the X-axis and Y-axis coincide, a straight-through valve body can be made. If they are parallel, other types of valve bodies can be designed.

[0027] The first guide surface 142 has a smooth curved surface structure, and the first guide surface 142 can also be designed as an oblique arc surface, both of which fall within the protection scope of this application.

[0028] The radius of the rounded corners of the curved surface structure is 3 centimeters. After multiple experiments and studies, 3 centimeters has shown the best results.

[0029] Both the first mounting port 120 and the second mounting port 130 are optical hole structures that facilitate welding. The first mounting port 120 and the second mounting port 130 are designed as optical hole structures mainly for welding and quick installation. The optical holes are smooth through holes.

[0030] Both the first mounting port 120 and the second mounting port 130 are threaded hole structures that facilitate threaded connection. The first mounting port 120 and the second mounting port 130 are designed as threaded hole structures, which facilitates direct installation onto the pipe.

[0031] The bottom of the main body 100 is provided with a raised part 170 for raising the main body 100. Some valve bodies are installed close to the ground. The main purpose of adding the raised part 170 is to keep the bottom of the main body 100 a certain distance from the ground, so that the first mounting port 120 and the second mounting port 130 are higher off the ground, which makes it easier to operate with tools such as wrenches and is highly practical.

[0032] Example 2; as Figures 5-7As shown, the difference between this embodiment and Embodiment 1 is that the mounting hole 110 has a Z-axis formed along the axial direction, the first flow channel 140 and the second flow channel 150 respectively form the X-axis and Y-axis along the axial direction, and the main body 100 includes a projection surface 160 perpendicular to the left and right directions. The X-axis, Y-axis and Z-axis form a first projection line 161, a second projection line 162 and a third projection line 163 respectively through the projection surface 160, wherein the angle between the first projection line 161 and the third projection line 163 is α, and the angle between the second projection line 162 and the third projection line 163 is θ. β and α are obtuse angles, and β is an acute angle. The top of the main body 100 is provided with a mounting groove 180 that matches the mounting hole 110. A valve stem 210 that reciprocates along the axial direction of the mounting groove 180 and matches the mounting hole 110 is mounted on the mounting groove 180. The valve stem 210 is provided with a guide sleeve 211 that matches the mounting groove 180 and a valve disc 220 for sealing the mounting hole 110. The valve disc 220 is threaded to the valve stem 210. A bushing 230 is provided between the valve disc 220 and the guide sleeve 211 to limit the movement of the valve disc 220. The bushing 230 is sleeved on the side of the valve stem 210. The valve disc 220 has a tapered sleeve 240 at its end. The tapered sleeve 240 has a tapered shape that gradually increases in cross-section from the outside to the inside. The flow rate of the main body 100 is adjusted by the reciprocating motion of the tapered sleeve 240 with the valve stem 210. This solves the problems of valve body vibration, valve core misalignment, inaccurate adjustment, and unstable flow rate during adjustment. The valve core does not vibrate or misalign during adjustment, resulting in high precision and accurate control. The guide sleeve 211 of the valve core solves the problems of misalignment and impact vibration during adjustment. The bushing 230 fixes the distance between the valve disc 220 and the guide sleeve 211 to ensure sufficient flow rate and buffering. The mounting groove 180 and mounting hole 110 are coaxially arranged. The guide sleeve 211 is provided with a pressure relief hole 212, which makes the valve core adjustment more stable, solves the problem of water hammer, and eliminates the vacuum phenomenon in the valve cavity. The guide sleeve 211 moves up and down evenly in the valve cavity. The guide sleeve 211 also solves the problem of the adjusting cone sleeve 240 getting stuck in the mounting hole 110. The cone sleeve 240 does not deviate. The side of the guide sleeve 211 is provided with a sealing ring 213. The sealing ring 213 moves and seals in the valve cavity, making the guide sleeve 211 more fixed and not deviating. A sealing gasket 241 is provided between the valve disc 220 and the cone sleeve 240.

[0033] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Simple modifications and substitutions made by those skilled in the art without departing from the spirit and scope of this utility model are within its protection scope.

Claims

1. A regulating valve, characterized in that, Includes a main body (100), which has a mounting hole (110) for mating with a valve core. The main body (100) also has a first mounting port (120) and a second mounting port (130) connecting the mounting hole (110) and the outside of the main body (100). The main body (100) forms a first flow channel (140) through the first mounting port (120) to the mounting hole (110), and a second flow channel (150) through the second mounting port (130) to the mounting hole (110). The first flow channel (140)... The bottom of the inner wall of the second flow channel (150) is provided with a first cavity surface (141) extending from the first mounting port (120) to the mounting hole (110) and having a straight structure, and a first guide surface (142) extending from the mounting hole (110) to the first cavity surface (141). The bottom of the inner wall of the second flow channel (150) is provided with a second cavity surface (151) extending from the second mounting port (130) to the mounting hole (110) and having a straight structure, and a second guide surface (152) extending from the mounting hole (110) to the second cavity surface (151).

2. A regulating valve as described in claim 1, characterized in that, The mounting hole (110) has a Z-axis formed along the axial direction. The first flow channel (140) and the second flow channel (150) respectively form the X-axis and Y-axis along the axial direction. The main body (100) includes a projection surface (160) perpendicular to the left and right directions. The X-axis, Y-axis and Z-axis form a first projection line (161), a second projection line (162) and a third projection line (163) respectively through the projection surface (160). The angle between the first projection line (161) and the third projection line (163) is α, and the angle between the second projection line (162) and the third projection line (163) is β. α and β are greater than or equal to 90 degrees.

3. A regulating valve as described in claim 1, characterized in that, The mounting hole (110) has a Z-axis formed along the axial direction. The first flow channel (140) and the second flow channel (150) respectively form the X-axis and Y-axis along the axial direction. The main body (100) includes a projection surface (160) perpendicular to the left and right directions. The X-axis, Y-axis and Z-axis form a first projection line (161), a second projection line (162) and a third projection line (163) respectively through the projection surface (160). The angle between the first projection line (161) and the third projection line (163) is α, and the angle between the second projection line (162) and the third projection line (163) is β. α is an obtuse angle and β is an acute angle. The top of the main body (100) is provided with a mounting groove (180) that mates with the mounting hole (110). A valve stem (210) is installed on the valve stem (180) and moves back and forth along the axial direction of the mounting groove (180) and is fitted with the mounting hole (110). The valve stem (210) is provided with a guide sleeve (211) that fits the mounting groove (180) and a valve disc (220) for sealing the mounting hole (110). The valve disc (220) is connected to the valve stem (210) by a thread. A bushing (230) is provided between the valve disc (220) and the guide sleeve (211) to limit the valve disc (220). A tapered sleeve (240) is provided at the end of the valve disc (220). The tapered sleeve (240) has a tapered cross-section that gradually increases from the outside to the inside. The flow rate of the main body (100) is adjusted by the tapered sleeve (240) moving back and forth with the valve stem (210).

4. A regulating valve as described in claim 2, characterized in that, The second guide surface (152) is arranged around the mounting opening. The second guide surface (152) has an A end (153) and a B end (154) arranged at different heights. The second guide surface (152) is connected to the top position of the mounting hole (110) through the A end (153) and connected to the second cavity surface (151) through the B end (154) to form a transition surface from the mounting hole (110) to the second cavity surface (151).

5. A regulating valve as described in claim 2, characterized in that, The X-axis coincides with or is parallel to the Y-axis.

6. A regulating valve as described in claim 1, characterized in that, The first guide surface (142) has a smooth curved surface structure.

7. A regulating valve as described in claim 6, characterized in that, The radius of the rounded corners of the curved surface structure is 3 centimeters.

8. A regulating valve as described in claim 1, characterized in that, Both the first mounting port (120) and the second mounting port (130) are optical holes that facilitate welding.

9. A regulating valve as described in claim 1, characterized in that, Both the first mounting port (120) and the second mounting port (130) are threaded hole structures that facilitate threaded connection.

10. A regulating valve as described in any one of claims 1 to 9, characterized in that, The bottom of the main body (100) is provided with a raised part (170) for raising the main body (100).

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