Stainless steel gate valve
By installing the second circular plate on the outer wall of the control screw rod of the stainless steel plug valve, and applying lubricant oil and anti-rust treatment, the problem of rotary screw being easily rusted is solved, and the rotation smoothness is guaranteed and the device practicality is achieved. Improvement.
Patent Information
- Application Number
- CN202421357539.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-13
- Publication Date
- 2025-02-14
- Estimated Expiration
- 2034-06-13
AI Technical Summary
The rotating screws of existing stainless steel plug valves are prone to rust, affecting the rotational smoothness.
A stainless steel plug-in valve is designed. By installing a second circular plate on the outer wall of the control screw and snagging it inside the upper through hole of the valve body shell, combined with the design of the roller and the drain groove, it is coated with lubricating oil and Anti-rust treatment to prevent rust on the outer wall of the screw.
It effectively prevents rust on the outer wall of the control screw, ensures the smoothness of the lifting and lowering process of the rotary control screw control valve plate, and increases the practicality and structural rationality of the device.
Smart Images
Figure CN222479492U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of plug-in valves, in particular to a stainless steel plug-in valve. Background Art
[0002] The stainless steel gate valve is an industrial valve, mainly composed of valve body, valve plate, actuator and other components. Its characteristics are that there is no obvious groove in the valve body diameter, there will be no blockage when the medium passes through, and the flow performance is sufficient. At the same time, the sealing and hard sealing combination of the stainless steel gate valve can reach a higher standard value.
[0003] The gate valve mainly includes a shell, a valve plate and a screw rod. The screw rod and the threaded sleeve on the valve plate are screwed together. After the valve plate is installed in the shell, the valve plate can be raised and lowered by rotating the screw rod, thereby realizing the flow and cutoff of the liquid passing through the gate valve.
[0004] At present, in the prior art, a rotary screw control valve plate and a threaded sleeve thereon are raised and lowered along the outer wall of the screw to achieve the interception or flow of the gate valve. However, the screw is mostly made of iron and is prone to rust. During the above process, the outer wall of the screw is exposed to the air and is prone to rust reaction with moisture in the air. The rust of the screw will affect the smoothness of the rotary screw control valve plate during the lifting process.
[0005] Therefore, a stainless steel gate valve is proposed to solve the above problems. Utility Model Content
[0006] In order to make up for the shortcomings of the existing technology, a stainless steel gate valve is proposed to solve the problem that the outer wall of the screw rod is exposed to the air and easily corrodes with the moisture in the air, and the rust of the screw rod will affect the smoothness of the rotating screw rod controlling the valve plate during the lifting process.
[0007] The technical solution adopted by the utility model to solve its technical problems is: a stainless steel plug valve described in the utility model comprises a valve body shell, a valve plate is slidably installed on the internal track of the valve body shell, a threaded sleeve is fixedly connected to the top center of the valve plate, a control screw is installed on the inner thread of the threaded sleeve, a first circular plate is fixedly connected to one end of the control screw, the outer wall of the first circular plate is clamped in the middle circular groove of the valve body shell, a second circular plate is fixedly connected to the outer wall of the control screw near the other end, the second circular plate is clamped in the upper through hole of the valve body shell, a box body is installed on one side of the valve plate by bolts, a drain cover is connected to one side of the box body, a drain interface is connected to one side of the drain cover, and one end of the drain interface is connected to the interior of the threaded sleeve.
[0008] Preferably, a roller is installed inside the excretion cover, the outer wall of the roller is in contact with the inner wall of the excretion cover, a plurality of excretion grooves are opened on the outer wall of the roller, and the plurality of excretion grooves are installed equidistantly along the circumferential direction of the roller. A shaft rod at one end of the roller passes through the top of the excretion cover, and a gear is fixed to one end of the shaft rod of the roller.
[0009] Preferably, a strip groove is formed on the outer wall of the control screw rod, a linkage ring is provided on the sliding sleeve of the outer wall of the screw rod, a limit strip is fixedly connected to the inner wall of the linkage ring, and the outer wall of the limit strip is engaged with the inner wall of the strip groove.
[0010] Preferably, a lifting ring is fixedly connected below the linkage ring, and the lifting ring is clamped in the top surface groove of the threaded sleeve. The outer wall of the lifting ring is provided with a plurality of engaging grooves, and the plurality of engaging grooves are equidistantly installed along the outer circumference of the lifting ring, and the engaging grooves are engaged with the gears.
[0011] Preferably, a U-shaped handle is installed through one side of the box body, and both ends of the U-shaped handle pass through to the interior of the box body.
[0012] Preferably, an extrusion plate is fixedly connected between the two ends of the U-shaped handle, and the extrusion plate is slidably installed inside the box.
[0013] Preferably, springs are slidably sleeved on the outer walls at both ends of the U-shaped handle, one end of the spring is fixedly connected to one side of the inner wall of the box body, and the other end of the spring is fixedly connected to one side of the extrusion plate.
[0014] Beneficial effects of the utility model:
[0015] 1. In the utility model, after the handle of the control screw is installed, the control screw can be rotated as a whole by rotating the handle, and the valve plate is spirally connected to the control screw through a threaded sleeve, which enables the valve plate to rise or fall as a whole during the control of the screw, so as to realize the control of the retention or flow of the gate valve. The box body is installed above the valve plate, which can store lubricating oil and is connected with the threaded sleeve through the discharge interface on the discharge cover, so that the lubricating oil can be applied to the area through which the lubricating oil passes during the relative position change of the upper valve plate controlled by the rotating control screw, and then the outer wall of the control screw is oiled and rust-proofed during the process of the device rotating the control screw to control the lifting and lowering of the valve plate, thereby reducing the occurrence of rust on the outer wall of the control screw, ensuring the smoothness of the opening and closing process of the gate valve controlled by the rotating control screw, and increasing the practicality of the device.
[0016] 2. In the utility model, the lubricating oil carried by the drainage groove can be discharged from the valve plate and attached to the outer wall of the control screw rod when passing through the area where the drainage interface is located. When the drum is stationary, the drainage groove in the area covered by the drainage interface discharges the lubricating oil therein and the lubricating oil is cut off. This prevents the lubricating oil from leaking out of the box body when the gate valve is not in the opening and closing process, thereby increasing the rationality of the device structure. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:
[0018] Figure 1 It is a three-dimensional diagram of the utility model;
[0019] Figure 2 It is a three-dimensional view of a partial cross-section of the valve body shell in the utility model;
[0020] Figure 3 It is a three-dimensional diagram of the cooperation between the valve plate and the screw rod in the utility model;
[0021] Figure 4 It is a three-dimensional diagram of the partial disassembly of the valve plate and the control screw rod in the utility model;
[0022] Figure 5 It is a three-dimensional diagram of a section view of the box body in the utility model;
[0023] Figure 6 It is a stereoscopic diagram of the cooperation between the gear and the meshing groove in the utility model;
[0024] Legend:
[0025] 1. Valve body shell; 2. Valve plate; 21. Threaded sleeve; 3. Control screw; 31. First circular plate; 32. Second circular plate; 4. Box body; 41. Drain cover; 42. Drain interface; 5. Roller; 51. Drain groove; 52. Gear; 33. Strip groove; 6. Linkage ring; 61. Limit strip; 62. Lifting ring; 63. Engaging groove; 7. U-shaped handle; 71. Extrusion plate; 72. Spring. DETAILED DESCRIPTION
[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0027] Specific examples are given below.
[0028] See also Figure 1 - Figure 6 The utility model provides a stainless steel plug valve, including a valve body shell 1, a valve plate 2 is slidably mounted on the internal track of the valve body shell 1, a threaded sleeve 21 is fixedly connected to the top center of the valve plate 2, a control screw rod 3 is installed on the inner thread of the threaded sleeve 21, a first circular plate 31 is fixedly connected to one end of the control screw rod 3, the outer wall of the first circular plate 31 is clamped in the middle circular groove of the valve body shell 1, a second circular plate 32 is fixedly connected to the outer wall of the control screw rod 3 near the other end, the second circular plate 32 is clamped in the upper through hole of the valve body shell 1, a box body 4 is mounted on one side of the valve plate 2 by bolts, a drain cover 41 is connected to one side of the box body 4, a drain interface 42 is connected to one side of the drain cover 41, one end of the drain interface 42 is connected to the inside of the threaded sleeve 21, and the control screw rod 3 passes through the first circular plate 31 and the second The circular plates 32 are respectively mutually clamped with the circular grooves on the valve body shell 1 and fixed on the valve body shell 1, and after the handle of the control screw rod 3 is installed, the control screw rod 3 can be rotated as a whole by rotating the handle. The valve plate 2 is spirally connected with the control screw rod 3 through the threaded sleeve 21, which enables the valve plate 2 to rise or fall as a whole during the control of the screw rod 3 to achieve the control of the retention or flow of the gate valve. The box body 4 is installed above the valve plate 2, which can store lubricating oil and is connected to the threaded sleeve 21 through the discharge interface 42 on the discharge cover 41, which enables the lubricating oil to be applied to the area it passes through during the process of rotating the control screw rod 3 to control the relative position change of the upper valve plate 2, so that the device can rotate the control screw rod 3 to control the outer wall of the control screw rod 3 to perform oil rust prevention treatment;
[0029] like Figure 5 As shown, a roller 5 is installed inside the discharge cover 41, and the outer wall of the roller 5 fits with the inner wall of the discharge cover 41. The outer wall of the roller 5 is provided with a plurality of discharge grooves 51, and the plurality of discharge grooves 51 are installed equidistantly along the circumferential direction of the roller 5. The shaft at one end of the roller 5 passes through the top of the discharge cover 41, and a gear 52 is fixedly connected to one end of the shaft of the roller 5. Inside the discharge cover 41, the roller 5 can block the discharge interface 42, and the roller 5 in the rotating process can carry a certain amount of lubricating oil through the discharge groove 51 thereon. The lubricating oil carried by the discharge groove 51 can be discharged from its valve plate 2 and attached to the outer wall of the control screw 3 when passing through the area where the discharge interface 42 is located. When the roller 5 is stationary, the discharge groove 51 in the area covered by the discharge interface 42 discharges the lubricating oil therein, and the lubricating oil is cut off, which prevents the lubricating oil from leaking out of the box body 4 when the gate valve is not in the opening and closing process.
[0030] like Figure 3 and Figure 4As shown, the outer wall of the control screw rod 3 is provided with a strip groove 33, the outer wall of the screw rod is slidably sleeved with a linkage ring 6, the inner wall of the linkage ring 6 is fixedly connected with a limit strip 61, the outer wall of the limit strip 61 and the inner wall of the strip groove 33 are mutually engaged, and the control screw rod 3 is mutually engaged with the limit strip 61 of the linkage ring 6 through the strip groove 33, so as to realize the linkage between the control screw rod 3 and the linkage ring 6, and enable them to rotate synchronously;
[0031] like Figure 4 , Figure 5 and Figure 6 As shown, a lifting ring 62 is fixedly connected to the bottom of the linkage ring 6, and the lifting ring 62 is clamped in the inner groove of the top surface of the threaded sleeve 21. The outer wall of the lifting ring 62 is provided with a plurality of meshing grooves 63, and the plurality of meshing grooves 63 are installed equidistantly along the outer circumference of the lifting ring 62. The meshing grooves 63 mesh with the gear 52. The linkage ring 6 cooperates with the top surface of the threaded sleeve 21 through the lifting ring 62, and the linkage ring 6 meshes with the gear 52 through the meshing grooves 63. This enables the linkage ring 6 and the drum 5 to rotate when the control screw 3 is rotated, so as to realize the discharge of the lubricating oil.
[0032] like Figure 5 As shown, a U-shaped handle 7 is installed through one side of the box body 4, and both ends of the U-shaped handle 7 pass through the interior of the box body 4. An extrusion plate 71 is fixedly connected between the two ends of the U-shaped handle 7. The extrusion plate 71 is slidably installed in the interior of the box body 4. The outer walls of both ends of the U-shaped handle 7 are slidably sleeved with springs 72, one end of the spring 72 is fixedly connected to one side of the inner wall of the box body 4, and the other end of the spring 72 is fixedly connected to one side of the extrusion plate 71. The relative position of the extrusion plate 71 inside the box body 4 is controlled by the U-shaped handle 7, and the spring 72 can provide the extrusion plate 71 with an elastic force to move to the position of the excretion cover 41, thereby squeezing the lubricating oil in the box body 4, and the lubricating oil content in the box body 4 can be judged according to the depth of the U-shaped handle 7 inserted into the box body 4, thereby increasing the rationality of the device structure.
[0033] Working principle: after the handle of the control screw rod 3 is installed, the control screw rod 3 can be rotated as a whole by rotating the handle. The valve plate 2 is spirally connected to the control screw rod 3 through the threaded sleeve 21, which enables the valve plate 2 to rise or fall as a whole during the control of the screw rod 3 to achieve the control of the retention or flow of the gate valve. The box body 4 is installed above the valve plate 2 to store the lubricating oil, and is connected to the threaded sleeve 21 through the discharge interface 42 on the discharge cover 41, which enables the lubricating oil to be applied to the area through which the lubricating oil is passed during the process of rotating the control screw rod 3 to control the relative position change of the upper valve plate 2, so that the device can rotate the control screw rod 3 to control the lifting and lowering of the valve plate 2. The outer wall of the control screw rod 3 is oiled and rust-proofed. Inside the discharge cover 41, the roller 5 can seal the discharge interface 42. During the rotation process, the roller 5 can carry a certain amount of lubricating oil through the discharge groove 51 thereon, and the lubricating oil carried by the discharge groove 51 passes through the discharge interface 42. When the roller 5 is in the area, it can be discharged from its valve plate 2 and attached to the outer wall of the control screw rod 3. When the roller 5 is stationary, the drainage groove 51 in the drainage interface 42 covers the area where the lubricating oil is discharged and the lubricating oil is cut off. This prevents the lubricating oil from leaking out of the box body 4 when the plug valve is not in the opening and closing process. The control screw rod 3 is matched with the upper limit strip 61 of the linkage ring 6 through the strip groove 33 to realize the linkage between the control screw rod 3 and the linkage ring 6, and enable them to rotate synchronously. The linkage ring 6 cooperates with the top surface of the threaded sleeve 21 through the lifting ring 62, and the linkage ring 6 is meshed with the gear 52 through the meshing groove 63. This enables the linkage ring 6 and the roller 5 to rotate when the control screw rod 3 is rotated to realize the drainage of the lubricating oil. The relative position of the extrusion plate 71 inside the box body 4 is controlled by the U-shaped handle 7, and the spring 72 can provide the extrusion plate 71 with an elastic force to move to the position of the drainage cover 41, squeeze the lubricating oil in the box body 4, and enable the lubricating oil to be smoothly discharged from the drainage interface 42.
[0034] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.
Claims
1. A stainless steel gate valve, characterized in that: The invention comprises a valve body shell (1), wherein a valve plate (2) is slidably mounted on an internal track of the valve body shell (1), a threaded sleeve (21) is fixedly connected to the top center of the valve plate (2), a control screw rod (3) is internally threadedly mounted on the threaded sleeve (21), one end of the control screw rod (3) is fixedly connected to a first circular plate (31), the outer wall of the first circular plate (31) is clamped in a central circular groove of the valve body shell (1), a second circular plate (32) is fixedly connected to the outer wall of the control screw rod (3) near the other end, the second circular plate (32) is clamped in the upper through hole of the valve body shell (1), one side of the valve plate (2) is mounted with a box body (4) by means of bolts, one side of the box body (4) is connected to a drain cover (41), one side of the drain cover (41) is connected to a drain interface (42), one end of the drain interface (42) is connected to the inside of the threaded sleeve (21).
2. A stainless steel gate valve according to claim 1, characterized in that: A roller (5) is installed inside the excretion cover (41), the outer wall of the roller (5) is in contact with the inner wall of the excretion cover (41), the outer wall of the roller (5) is provided with a plurality of excretion grooves (51), the plurality of excretion grooves (51) are installed at equal intervals along the circumferential direction of the roller (5), one end of the shaft of the roller (5) passes through the top of the excretion cover (41), and one end of the shaft of the roller (5) is fixedly connected with a gear (52).
3. A stainless steel gate valve according to claim 2, characterized in that: The outer wall of the control screw rod (3) is provided with a strip groove (33), the outer wall of the screw rod is slidably sleeved with a linkage ring (6), the inner wall of the linkage ring (6) is fixedly connected to a limit strip (61), and the outer wall of the limit strip (61) and the inner wall of the strip groove (33) are mutually engaged.
4. A stainless steel gate valve according to claim 3, characterized in that: A lifting ring (62) is fixedly connected below the linkage ring (6), and the lifting ring (62) is clamped in the top surface groove of the threaded sleeve (21). The outer wall of the lifting ring (62) is provided with a plurality of meshing grooves (63). The plurality of meshing grooves (63) are equidistantly installed along the outer circumference of the lifting ring (62), and the meshing grooves (63) mesh with the gear (52).
5. A stainless steel gate valve according to claim 4, characterized in that: A U-shaped handle (7) is installed through one side of the box body (4), and both ends of the U-shaped handle (7) pass through the interior of the box body (4).
6. A stainless steel gate valve according to claim 5, characterized in that: An extrusion plate (71) is fixedly connected between the two ends of the U-shaped handle (7), and the extrusion plate (71) is slidably mounted inside the box body (4).
7. A stainless steel gate valve according to claim 6, characterized in that: The outer walls at both ends of the U-shaped handle (7) are slidably sleeved with springs (72), one end of the spring (72) is fixedly connected to one side of the inner wall of the box body (4), and the other end of the spring (72) is fixedly connected to one side of the extrusion plate (71).