Valve limiting mechanism

Abstract

The utility model discloses a valve limiting mechanism which comprises a control component, a limiting component and a limiting component, the control component comprises a valve body and a control handle, and the control handle is connected to the upper portion of one end of the outer surface of the valve body; the limiting component comprises a bolt hole, a bolt rod, a positioning rod and a positioning hole, the bolt hole is formed in the control handle, the bolt hole is uniformly distributed, and the bolt rod is inserted and connected into the bolt hole. When the limiting device is actually used, the valve lacks an effective limiting structure, so that the valve core plate in the valve directly bears impact force generated by flowing of fluid when the valve runs, the valve rod connected with the valve core plate is extremely easy to rotate under the continuous action of the impact force due to the lack of the limiting device, and the valve core plate is prevented from rotating. The valve originally precisely controls the fluid flow according to the preset opening degree, but the precise control state can be broken through rotation of a valve rod, so that the actual flow in the valve is uncontrollably changed.

Description

Technical Field

[0001] This utility model relates to the field of valve technology, specifically a valve limiting mechanism. Background Technology

[0002] Valves are devices used to control the flow of fluid media (such as gas, liquid, etc.). In various industrial production processes and daily life fluid transportation systems, valves play a vital role as key components for controlling fluid flow, flow rate, and pressure.

[0003] A search revealed CN222011118U, a valve limiting mechanism comprising a valve body and a valve stem mounted on the valve body; a handle is mounted on the valve stem; a sleeve plate fitted onto the valve stem is mounted on the valve body, the top of the sleeve plate having an annular groove; an elastic top member slidably connected to the annular groove is mounted on the handle; a sounding element is mounted within the annular groove, and an elastic air-push element for limiting the elastic top member is connected to the end of the sounding element. This utility model proposes a valve limiting mechanism that solves the problem of operators using excessive force when rotating the valve stem, easily leading to valve stem damage, and the inability to provide a warning when the valve stem reaches its maximum stroke.

[0004] However, in actual use, the valve in the aforementioned device lacks an effective limiting structure. As a result, the valve core plate inside the valve directly bears the impact force generated by the fluid flow during operation. Due to the lack of a limiting device, the valve stem connected to the valve core plate is prone to rotation under the continuous action of this impact force. The valve was originally designed to precisely control the fluid flow according to the preset opening degree, but the rotation of the valve stem will break this precise control state, causing uncontrollable changes in the actual flow inside the valve. Therefore, it is necessary to provide a valve limiting mechanism that can accurately limit the movement stroke of the valve stem and ensure that the valve's opening and closing positions are accurate. Utility Model Content

[0005] The purpose of this utility model is to provide a valve limiting mechanism to solve the problems mentioned in the background section. To solve the above technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model is a valve limiting mechanism, comprising:

[0007] A control component, comprising a valve body and a control handle, the control handle being connected to the upper part of one end of the outer surface of the valve body;

[0008] The limiting component includes a pin hole, a pin rod, a positioning rod, and a positioning hole. The pin hole is located inside the control handle and is evenly distributed. The pin rod is inserted into and connected to the inside of the pin hole. The positioning hole is located inside the pin rod and is inserted into and connected to the inside of the positioning hole.

[0009] Furthermore, the limiting component also includes a support frame, a support rod, and a spring. The support frame is connected to the outer surface of the control handle, the support rod is connected to one end of the support frame, and the spring is wound around and connected to the outer surface of the support rod.

[0010] Furthermore, the limiting component also includes a limiting block, which is connected to the outer end of the support rod.

[0011] Furthermore, the limiting component also includes a pressure plate, which is connected to both sides of the outer surface of the positioning rod, and the support rod passes through the interior of the pressure plate.

[0012] Furthermore, the limiting component also includes a grip, which is connected to the middle of the other end of the outer surface of the positioning rod.

[0013] Furthermore, it also includes a support component, which includes a guide rod, a fixing bracket, and a guide ring. The guide rod is located at one end of the top of the valve body, the guide ring is movably mounted on the outer surface of the guide rod, and the fixing bracket is connected between the guide ring and the insert rod.

[0014] Furthermore, the support component also includes an upper limit plate and a lower limit plate, the upper limit plate being connected to the top of the guide rod and the lower limit plate being connected to the bottom of the guide rod.

[0015] Furthermore, the support component also includes an upper insertion hole, a lower insertion hole, an upper insertion rod, and a lower insertion rod. The upper insertion rod and the lower insertion rod are respectively connected to the top and bottom of the guide ring. The upper insertion hole is opened inside the upper limit plate, and the lower insertion hole is opened inside the lower limit plate.

[0016] This utility model has the following beneficial effects:

[0017] This invention features a control handle with a pin hole, a pin rod, a positioning rod, and a positioning hole on its exterior. The control handle can be rotated, causing the internal fluid to move. The pin rod is inserted into the pin hole to position the control handle. When the positioning rod aligns with the positioning hole, a spring returns, causing the positioning rod to re-enter the positioning hole, preventing the pin rod from loosening during valve body operation. This ensures the pin rod's stable position, accurately limiting the movement of the valve body and control handle, and guaranteeing the accurate opening and closing of the control handle.

[0018] Based on the aforementioned intended effects, by providing a guide rod, guide ring, upper insertion hole, lower insertion hole, upper insertion rod, and lower insertion rod on the top of the valve body, the guide ring can move up and down outside the guide rod. When the pin needs to be inserted into the pin hole, the guide ring is moved to the upper part, so that the upper insertion rod is inserted into the upper insertion hole for fixation. When the pin needs to be separated from the pin hole, the guide ring is moved to the lower part, so that the lower insertion rod is inserted into the lower insertion hole for fixation, thereby improving the flexibility of use. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall valve body of this utility model;

[0021] Figure 2 This is a side view of the valve body of this utility model;

[0022] Figure 3 This is a schematic diagram of the pin rod of this utility model;

[0023] Figure 4 This utility model Figure 2 Enlarged diagram of section A in the middle;

[0024] Figure 5 This is a schematic diagram of the positioning rod of this utility model.

[0025] The attached diagram lists the components represented by each number as follows:

[0026] 100. Valve body; 101. Control handle;

[0027] 200. Pin hole; 201. Pin rod; 202. Positioning rod; 203. Positioning hole; 204. Support frame; 205. Pressure plate; 206. Spring; 207. Limiting block; 208. Support rod; 209. Handle;

[0028] 300. Guide rod; 301. Fixing bracket; 302. Lower limit plate; 303. Upper insertion hole; 304. Lower insertion hole; 305. Upper insertion rod; 306. Lower insertion rod; 307. Guide ring; 308. Upper limit plate. Detailed Implementation

[0029] 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.

[0030] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0031] Please see Figure 1-5 As shown, this utility model is a valve limiting mechanism, comprising:

[0032] The control component includes a valve body 100 and a control handle 101, wherein the control handle 101 is connected to the upper part of one end of the outer surface of the valve body 100.

[0033] The limiting component includes a pin hole 200, a pin rod 201, a positioning rod 202, and a positioning hole 203. The pin hole 200 is opened inside the control handle 101 and is evenly distributed. The pin rod 201 is inserted into and connected to the inside of the pin hole 200. The positioning hole 203 is opened inside the pin rod 201, and the positioning rod 202 is inserted into and connected to the inside of the positioning hole 203.

[0034] Rotate the control handle 101 to make the internal fluid move, insert the pin 201 into the pin hole 200 to position the control handle 101, and insert the positioning rod 202 into the positioning hole 203 to prevent the pin 201 from loosening during the operation of the valve body 100, thereby ensuring the stability of the position of the pin 201.

[0035] The limiting component also includes a support frame 204, a support rod 208, and a spring 206. The support frame 204 is connected to the outer surface of the control handle 101, the support rod 208 is connected to one end of the support frame 204, and the spring 206 is wound around the outer surface of the support rod 208.

[0036] When the positioning rod 202 corresponds to the positioning hole 203, the spring 206 rebounds, causing the positioning rod 202 to be inserted into the positioning hole 203.

[0037] The limiting component also includes a limiting block 207, which is connected to the outer end of the support rod 208;

[0038] The limiting block 207 will block the outer end of the support rod 208, thus playing a limiting role.

[0039] The limiting component also includes a pressure plate 205, which is connected to both sides of the outer surface of the positioning rod 202, and the support rod 208 passes through the interior of the pressure plate 205;

[0040] The limiting component also includes a grip 209, which is connected to the middle of the other end of the outer surface of the positioning rod 202;

[0041] The operator can hold the handle 209 and stretch the positioning rod 202.

[0042] The working principle is as follows: First, rotate the control handle 101 to put the internal fluid in motion, insert the pin 201 into the pin hole 200 to position the control handle 101. When the positioning rod 202 corresponds to the positioning hole 203, the spring 206 rebounds, causing the positioning rod 202 to be inserted into the positioning hole 203. This prevents the pin 201 from loosening during the operation of the valve body 100, thus ensuring the stability of the pin 201's position. This accurately limits the movement of the valve body 100 and the control handle 101, ensuring that the opening and closing positions of the control handle 101 are accurate.

[0043] Please see Figure 1 , Figure 2 , Figure 3 As shown, this embodiment, based on the above embodiment, further includes: a support component, which includes a guide rod 300, a fixing frame 301, and a guide ring 307. The guide rod 300 is located at one end of the top of the valve body 100, the guide ring 307 is movably mounted on the outer surface of the guide rod 300, and the fixing frame 301 is connected between the guide ring 307 and the insertion rod.

[0044] The guide ring 307 can move up and down outside the guide rod 300, and the auxiliary pin rod 201 can move up and down.

[0045] The support component also includes an upper limit plate 308 and a lower limit plate 302. The upper limit plate 308 is connected to the top of the guide rod 300, and the lower limit plate 302 is connected to the bottom of the guide rod 300.

[0046] The support component also includes an upper insertion hole 303, a lower insertion hole 304, an upper insertion rod 305, and a lower insertion rod 306. The upper insertion rod 305 and the lower insertion rod 306 are respectively connected to the top and bottom of the guide ring 307. The upper insertion hole 303 is opened inside the upper limit plate 308, and the lower insertion hole 304 is opened inside the lower limit plate 302.

[0047] The upper insertion rod 305 is inserted into the upper insertion hole 303, and the lower insertion rod 306 is inserted into the lower insertion hole 304, which can position the guide ring 307.

[0048] The working principle is as follows: First, the guide ring 307 can move up and down outside the guide rod 300. When the pin rod 201 needs to be inserted into the pin hole 200, the guide ring 307 is moved to the upper part, so that the upper pin rod 305 is inserted into the upper insertion hole 303 for fixation. When the pin rod 201 needs to be separated from the pin hole 200, the guide ring 307 is moved to the lower part, so that the lower pin rod 306 is inserted into the lower insertion hole 304 for fixation, thus improving the flexibility during use.

[0049] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A valve stop mechanism, characterized by, The utility model relates to a kind of valve, including: Control component, the control component includes valve body (100) and control handle (101), and the control handle (101) is connected in the upper portion of one end of the outer surface of valve body (100); Limiting component, the limiting component includes bolt hole (200), bolt rod (201), positioning rod (202) and positioning hole (203), the bolt hole (200) is opened in the inside of control handle (101), bolt hole (200) is in average distribution form, bolt rod (201) is inserted and connected in the inside of bolt hole (200), positioning hole (203) is opened in the inside of bolt rod (201), positioning rod (202) is inserted and connected in the inside of positioning hole (203).

2. A valve stop mechanism according to claim 1, wherein: The limiting component further includes support frame (204), support rod (208) and spring (206), the support frame (204) is connected to the outer surface of control handle (101), support rod (208) is connected in one end of support frame (204), and spring (206) is wound and connected to the outer surface of support rod (208).

3. A valve stop mechanism according to claim 2, wherein: The limiting component further includes limit block (207), and the limit block (207) is connected to the outer end of support rod (208).

4. A valve stop mechanism according to claim 3, wherein: The limiting component further includes pressing plate (205), and the pressing plate (205) is connected to the both sides of the outer surface of positioning rod (202), and support rod (208) penetrates the inside of pressing plate (205).

5. A valve stop mechanism according to claim 1, wherein: The limiting component further includes handle (209), and the handle (209) is connected to the middle portion of the other end of the outer surface of positioning rod (202).

6. A valve stop mechanism according to claim 1, wherein: Further including support component, the support component includes guide rod (300), fixed frame (301) and guide ring (307), the guide rod (300) is located in one end of the top of valve body (100), the guide ring (307) is movably connected to the outer surface of guide rod (300), and the fixed frame (301) is connected between guide ring (307) and plug rod.

7. A valve stop mechanism according to claim 6, wherein: The support component further includes upper limiting disc (308) and lower limiting disc (302), the upper limiting disc (308) is connected to the top of guide rod (300), and the lower limiting disc (302) is connected to the bottom of guide rod (300).

8. A valve stop mechanism according to claim 7, wherein: The support component further includes upper insertion hole (303), lower insertion hole (304), upper insertion rod (305) and lower insertion rod (306), the upper insertion rod (305) and lower insertion rod (306) are connected to the top and bottom of guide ring (307) respectively, the upper insertion hole (303) is opened in the inside of upper limiting disc (308), and the lower insertion hole (304) is opened in the inside of lower limiting disc (302).

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