An adjustable flow valve

Abstract

The utility model discloses an adjustable flow valve, include: the valve rod of adjustable length, the valve rod rotation is installed in the valve seat and the sealing seat, is used for the flexible adjustment length according to actual space, positioning mechanism, install in the valve rod, are used for fixing after the valve rod length adjustment, the utility model discloses the design through the valve rod of adjustable length and positioning mechanism, through the fixed force of positioning mechanism to the valve rod disappears, according to actual space flexible adjustment length, both avoid the problem that the hand wheel is difficult to force because of the blocking of surrounding pipeline, equipment and is caused by too short, also prevent the space occupation and component interference caused by too long, ensure that the valve is assembled and is used in the pipeline well, equipment interlayer and other limited environment smoothly, through the fixed length of positioning mechanism to the valve rod, limit the length telescoping of valve rod, prevent the length telescoping of valve rod, and affect the subsequent use.

Description

Technical Field

[0001] This utility model relates to the field of valve technology, specifically to an adjustable flow valve. Background Technology

[0002] In various fluid transport systems for industrial production and daily life, valves are key components for controlling fluid flow rate, pressure, and direction.

[0003] Currently, the adjustable flow valves widely used in the market have certain limitations. Existing valves often have a fixed, non-adjustable stem length after installation. In many practical applications, installation space conditions are complex and varied. When encountering narrow installation locations, if the fixed-length stem is too short, the handwheel is easily obstructed by surrounding pipes or equipment, making it difficult for operators to apply effective torque. If the stem is too long, it will occupy additional limited space and may even interfere with other components, preventing proper valve assembly and affecting normal use and maintenance. Therefore, we need to propose an adjustable flow valve. Utility Model Content

[0004] The purpose of this utility model is to provide an adjustable flow valve to solve the problems mentioned in the background art, such as the valve stem length being non-adjustable. If the fixed length valve stem is too short, the handwheel is easily blocked by surrounding pipes or equipment, making it difficult for the operator to apply effective torque; if the valve stem is too long, it will occupy limited space and may even interfere with other components, causing the valve to be unable to be assembled properly.

[0005] To achieve the above objectives, this utility model provides the following technical solution: An adjustable flow valve includes: a valve body with a valve seat fixedly connected to its upper surface, and a sealing seat fixedly installed on the top of the valve seat; an adjustable length valve stem rotatably installed within the valve seat and the sealing seat, for flexibly adjusting its length according to actual space; and a positioning mechanism installed within the valve stem for fixing the valve stem after length adjustment.

[0006] Preferably, the valve stem includes a mounting base, a positioning rod, and a fixing post. The positioning rod is fixedly connected to the bottom of the mounting base, and the fixing post has an insertion groove. The positioning rod is inserted into the insertion groove, and the side of the positioning rod contacts the inner wall of the insertion groove.

[0007] Preferably, the positioning mechanism includes a first push plate, a second push plate, a push rod, an insert block, an end cap, and a pull spring; The mounting base has a mounting groove, and the first push plate and the second push plate are both located in the mounting groove. The push rod is fixedly connected to both sides of the first push plate and the second push plate. The push rod is movably inserted into the mounting base. The mounting base has multiple sets of mounting holes symmetrically arranged in pairs. The pull spring is located in the mounting hole. One end of the pull spring is fixedly installed on the side of the first push plate and the second push plate, and the other end of the pull spring is fixedly installed on the inside of the end cover. The end cover is fixedly installed on the mounting base.

[0008] Preferably, multiple sets of insert blocks are fixedly connected to the sides of both the first push plate and the second push plate, and multiple sets of slots for inserting the insert blocks are opened in the insertion groove, and the insert blocks are inserted into the slots.

[0009] Preferably, two sets of guide rods for positioning the first push plate and the second push plate are symmetrically fixedly connected in the mounting groove, and both the first push plate and the second push plate are slidably mounted on the guide rods.

[0010] Preferably, a handwheel is fixedly mounted on the top of the mounting base.

[0011] Preferably, it also includes a control shaft, which is threadedly mounted on the valve body.

[0012] Preferably, the upper end of the control shaft is fixedly connected to a connecting seat, the lower end of the fixed column is fixedly connected to a conical block, the top of the connecting seat is provided with a conical groove that matches the conical block, and the conical block is inserted into the conical groove.

[0013] Preferably, the valve seat has a first sealing cavity, the connecting seat is disposed in the first sealing cavity, the sealing seat has a second sealing cavity, and the fixing column is sealed and inserted into the sealing seat.

[0014] Preferably, the sealing seat has a connecting hole, and the first sealing cavity communicates with the second sealing cavity through the connecting hole.

[0015] Compared with the prior art, the beneficial effects of this utility model are: This utility model, through the design of an adjustable valve stem and a positioning mechanism, allows for flexible adjustment of the valve stem length based on actual space after the force fixing the valve stem by the positioning mechanism disappears. This avoids the problem of the handwheel being difficult to apply force due to obstruction by surrounding pipes and equipment due to being too short, and also prevents space occupation and component interference due to being too long. It ensures that the valve can be smoothly assembled and used in confined environments such as pipe wells and equipment interlayers. The positioning mechanism fixes the length of the valve stem, restricting its extension and retraction, and preventing subsequent use from being affected by the extension or retraction of the valve stem. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a cross-sectional structural diagram of the present invention; Figure 3 This is a schematic diagram of the valve stem structure of this utility model; Figure 4 This is a cross-sectional structural diagram of the valve stem of this utility model; Figure 5 This utility model Figure 2 Enlarged structural diagram of region A in the middle; Figure 6 This utility model Figure 4 A magnified structural diagram of region B in the middle.

[0017] In the diagram: 1. Valve body; 2. Valve seat; 3. Sealing seat; 4. Valve stem; 41. Mounting seat; 42. Positioning rod; 43. Fixing column; 5. Positioning mechanism; 51. First push plate; 52. Second push plate; 53. Mounting hole; 54. Push rod; 55. Insert block; 56. Slot; 57. End cap; 58. Pull spring; 6. Conical block; 7. Control shaft; 8. Connecting hole; 9. Fixing screw; 10. Guide rod; 11. Connecting seat; 12. Conical groove; 13. Handwheel; 14. Insertion groove; 15. First sealing cavity; 16. Second sealing cavity. Detailed Implementation

[0018] 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.

[0019] Please see Figure 1-6 This utility model provides a technical solution: An adjustable flow valve includes: a valve body 1, on the upper surface of which a valve seat 2 is fixedly connected, and a sealing seat 3 is fixedly installed on the top of the valve seat 2 by a fixing screw 9; an adjustable length valve stem 4, which is rotatably installed in the valve seat 2 and the sealing seat 3, for flexibly adjusting the length according to the actual space; and a positioning mechanism 5, installed in the valve stem 4, for fixing the valve stem 4 after the length is adjusted.

[0020] In an optional embodiment: such as Figure 4 and Figure 5 As shown, the valve stem 4 includes a mounting base 41, a positioning rod 42 and a fixing post 43. The positioning rod 42 is fixedly connected to the bottom of the mounting base 41. The fixing post 43 has an insertion groove 14. The positioning rod 42 is inserted into the insertion groove 14, and the side of the positioning rod 42 contacts the inner wall of the insertion groove 14. A handwheel 13 is fixedly mounted on the top of the mounting base 41.

[0021] It should be noted that the mounting base 41, positioning rod 42 and fixing column 43 cooperate to adjust the length of valve stem 4. The length can be flexibly adjusted according to the actual space. This avoids the problem of the handwheel being blocked by surrounding pipes and equipment due to being too short, and also prevents space occupation and component interference due to being too long. This ensures that the valve can be smoothly assembled and used in confined environments such as pipe wells and equipment interlayers.

[0022] In an optional embodiment: such as Figure 4 and Figure 5 As shown, the positioning mechanism 5 includes a first push plate 51, a second push plate 52, a push rod 54, an insert block 55, an end cap 57, and a pull spring 58; Mounting base 41 has a mounting groove, and the first push plate 51 and the second push plate 52 are both located in the mounting groove. The push rod 54 is fixedly connected to both sides of the first push plate 51 and the second push plate 52. The push rod 54 is movably inserted into the mounting base 41. Multiple sets of mounting holes 53 are symmetrically provided in pairs in the mounting base 41. Pull spring 58 is located in the mounting hole 53. One end of the pull spring 58 is fixedly installed on the side of the first push plate 51 and the second push plate 52, and the other end of the pull spring 58 is fixedly installed on the inside of the end cover 57. The end cover 57 is fixedly installed on the mounting base 41. Multiple sets of insert blocks 55 are fixedly connected to the sides of the first push plate 51 and the second push plate 52. Multiple sets of slots 56 for inserting the insert blocks 55 are opened in the insertion groove 14. The insert blocks 55 are inserted into the slots 56.

[0023] It should be noted that the first push plate 51, the second push plate 52, the push rod 54, the insert block 55, the end cap 57 and the pull spring 58 work together to fix the positioning insert rod 42 and the fixing post 43, restrict the length extension and retraction of the valve rod 4, and prevent the length extension and retraction of the valve rod from affecting subsequent use. By pulling the spring 58, the first push plate 51 and the second push plate 52 are dragged, so that the first push plate 51 and the second push plate 52 can be reset, so that the insert block 55 is automatically inserted into the slot 56 after being aligned with the slot 56. After the insert block 55 is inserted into the slot 56, the positioning insert rod 42 is fixed, preventing the positioning insert rod 42 from moving within the fixed post 43.

[0024] In an optional embodiment: such as Figure 4 and Figure 5 As shown, two sets of guide rods 10 for positioning the first push plate 51 and the second push plate 52 are symmetrically fixedly connected in the mounting groove. Both the first push plate 51 and the second push plate 52 are slidably mounted on the guide rods 10.

[0025] It should be noted that the guide rod 10 serves to guide and position the first push plate 51 and the second push plate 52. When the push rod 54 pushes the first push plate 51 and the second push plate 52, the first push plate 51 and the second push plate 52 can move stably, preventing the first push plate 51 and the second push plate 52 from shifting and affecting the insertion of the plug 55 into the slot 56.

[0026] In an optional embodiment: such as Figure 2 and Figure 6 As shown, it also includes a control shaft 7, which is threadedly installed inside the valve body 1; The upper end of the control shaft 7 is fixedly connected to the connecting seat 11, and the lower end of the fixed column 43 is fixedly connected to the conical block 6. The top of the connecting seat 11 is provided with a conical groove 12 that matches the conical block 6, and the conical block 6 is inserted into the conical groove 12.

[0027] It should be noted that the valve stem 4 can be connected to the control shaft 7 by the cooperation of the conical block 6 and the conical groove 12. If the valve stem 4 or the valve plate 8 is damaged, the valve stem 4 or the valve plate 8 can be replaced separately. Specifically, by removing the sealing seat 3 from the top of the valve seat 2, the valve seat 2 is separated from the sealing seat 3, and the conical block 6 is moved out of the conical groove 12.

[0028] In an optional embodiment: such as Figure 2 As shown, the valve seat 2 is provided with a first sealing cavity 15, the connecting seat 11 is provided in the first sealing cavity 15, the sealing seat 3 is provided with a second sealing cavity 16, and the fixing column 43 is sealed and inserted into the sealing seat 3.

[0029] It should be noted that by cooperating with the first sealing cavity 15 and the second sealing cavity 16, the sealing effect between the control shaft 7 and the valve body 1, and between the fixed column 43 and the sealing seat 3 is improved. When the medium leaks, it enters into the first sealing cavity 15 and the second sealing cavity 16 to prevent the medium from leaking out. A sealing seat (not shown in the figure) is fixedly installed at the lower end of the control shaft 7, and the flow rate of the medium in the valve body 1 is controlled by the sealing seat; The sealing seat 3 is equipped with a sealing gasket, which serves to seal the first sealing cavity 15 when the sealing seat 3 is fixedly installed on the top of the valve seat 2.

[0030] In an optional embodiment: such as Figure 5 As shown, the sealing seat 3 has a connecting hole 8, and the first sealing cavity is connected to the second sealing cavity 16 through the connecting hole 8.

[0031] It should be noted that when the valve stem 4 is rotated, causing the valve stem 4 to rotate and move within the valve body via the conical block 6 and the connecting seat 11, the connecting seat 11 can be pushed, allowing the connecting seat 11 to enter the second sealing cavity 16 through the connecting hole 8.

[0032] The usage process of this utility model is as follows: When it is necessary to adjust the length of the valve stem 4, the push rod 54 is pressed at the same time, causing the push rod 54 to push the first push plate 51 and the second push plate 52 closer to each other. When the first push plate 51 and the second push plate 52 are close to each other, the insert block 55 moves out of the slot 56. At this time, the handwheel 13 is pushed or pulled, causing the mounting base 41 to move the positioning insert rod 42, so that the positioning insert rod 42 moves in the fixed column 43. The length of the mounting base 41 and the fixed column 43 can be flexibly adjusted according to the actual space. This avoids the problem that the handwheel 13 is blocked by surrounding pipes and equipment and cannot apply force due to being too short, and also prevents space occupation and component interference due to being too long. After adjusting the valve stem 4, release the push rod 54. Under the drag of the pull spring 58 on the first push plate 51 and the second push plate 52, the first push plate 51 and the second push plate 52 are moved and reset in the mounting groove. When the insert 55 is aligned with the slot 56, the insert 55 is directly inserted into the slot 56. If the insert 55 is not aligned with the slot 56 and is pressed against the inner wall of the insertion groove 14, the positioning rod 42 is adjusted so that the insert 55 is aligned with the slot 56 and inserted into the slot 56. The positioning rod 42 is fixed in the fixing post 43, thereby fixing the length of the valve stem 4, limiting the extension and retraction of the valve stem, and preventing the extension and retraction of the valve stem from affecting subsequent use.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An adjustable flow valve, characterized in that, include: A valve body, on the upper surface of which a valve seat is fixedly connected, and a sealing seat is fixedly installed on the top of the valve seat; An adjustable length valve stem is rotatably mounted within the valve seat and sealing seat, allowing for flexible length adjustment according to actual space requirements; The positioning mechanism, installed inside the valve stem, is used to fix the valve stem after its length has been adjusted.

2. The adjustable flow valve according to claim 1, characterized in that: The valve stem includes a mounting base, a positioning rod, and a fixing post. The positioning rod is fixedly connected to the bottom of the mounting base. The fixing post has a insertion groove, and the positioning rod is inserted into the insertion groove. The side of the positioning rod contacts the inner wall of the insertion groove.

3. The adjustable flow valve according to claim 2, characterized in that: The positioning mechanism includes a first push plate, a second push plate, a push rod, an insert block, an end cap, and a pull spring; The mounting base has a mounting groove, and the first push plate and the second push plate are both located in the mounting groove. The push rod is fixedly connected to both sides of the first push plate and the second push plate. The push rod is movably inserted into the mounting base. The mounting base has multiple sets of mounting holes symmetrically arranged in pairs. The pull spring is located in the mounting hole. One end of the pull spring is fixedly installed on the side of the first push plate and the second push plate, and the other end of the pull spring is fixedly installed on the inside of the end cover. The end cover is fixedly installed on the mounting base.

4. The adjustable flow valve according to claim 3, characterized in that: The sides of the first push plate and the second push plate are fixedly connected with multiple sets of plug blocks. Multiple sets of slots for plug block insertion are opened in the insertion groove, and the plug blocks are inserted into the slots.

5. An adjustable flow valve according to claim 2, characterized in that: Two sets of guide rods for positioning the first push plate and the second push plate are symmetrically fixedly connected in the mounting groove. Both the first push plate and the second push plate are slidably mounted on the guide rods.

6. The adjustable flow valve according to claim 2, characterized in that: A handwheel is fixedly mounted on the top of the mounting base.

7. An adjustable flow valve according to claim 2, characterized in that: It also includes a control shaft, which is threadedly mounted on the valve body.

8. An adjustable flow valve according to claim 7, characterized in that: The upper end of the control shaft is fixedly connected to a connecting seat, and the lower end of the fixed column is fixedly connected to a conical block. The top of the connecting seat is provided with a conical groove that matches the conical block, and the conical block is inserted into the conical groove.

9. An adjustable flow valve according to claim 8, characterized in that: The valve seat has a first sealing cavity, the connecting seat is located in the first sealing cavity, the sealing seat has a second sealing cavity, and the fixing column is sealed and inserted into the sealing seat.

10. An adjustable flow valve according to claim 1, characterized in that: The sealing seat has a connecting hole, and the first sealing cavity is connected to the second sealing cavity through the connecting hole.

Images