A by-wire valve

Abstract

The utility model relates to valve field especially point to a kind of wire control valve, the utility model valve structure uses modularization split design, valve body, valve core, control mechanism each module independent assembly, connecting piece, reset spring, traction rope etc. in control mechanism, easily damaged components can be individually disassembled and replaced, without integral disassembly, maintenance difficulty and cost are greatly reduced. Wear-resistant tensile material is selected for traction rope in control mechanism, first limit block and second limit block at first end and last end are detachable, flexible protective sleeve can be flexibly tailored length, different scene installation distance needs are adapted, without additional adapter component. Its through the tooth block of valve stem and the tooth groove of connecting sleeve engagement, blind head screw fixing etc. Structure improves connection stability, reset spring provides reliable reset, solves the pain point that traditional equipment maintenance is complicated, installation adaptability is poor, adapts the use demand of medical, experimental clean environment.

Description

Technical Field

[0001] This utility model relates to the field of valves, and in particular to a line-controlled valve. Background Technology

[0002] In hospitals, laboratories, and other settings with extremely high hygiene requirements and unique operating environments, fluid flow control often relies on foot valves. Existing foot valves mostly employ an integrated structure, with the valve body, control mechanism, and foot pedal assembly fixedly connected via complex piping or mechanical linkages, presenting numerous problems that urgently need to be addressed.

[0003] On the one hand, existing foot valves have highly integrated components and a closed internal transmission structure, requiring complete disassembly of the device in case of failure, resulting in poor maintenance convenience. On the other hand, due to the diverse layouts of hospital wards and laboratory workstations, the required distance between the valve control end and the operating end varies depending on the scenario. However, the transmission distance between the control mechanism and the valve body of existing foot valves is fixed, and the switch installation length is not adjustable, making it impossible to flexibly adjust according to the actual installation environment.

[0004] Therefore, there is an urgent need for a fluid control valve that is easy to maintain, has an adjustable switch installation length, and is suitable for special scenarios in hospitals and laboratories, to replace the traditional foot valve. Utility Model Content

[0005] In view of the shortcomings mentioned above in the background technology, this utility model provides a wire-controlled valve.

[0006] The present invention adopts the following technical solution: A wired control valve, characterized in that it comprises: The valve body is equipped with an inlet and an outlet; A valve core, located within the valve body, is used to control the opening and closing of the inlet and outlet. The valve stem of the valve core extends out of the valve body. Control mechanisms, including: The bracket includes a first support plate and a second support plate vertically mounted thereon. The first support plate is installed on the valve body or valve core, and the second support plate is provided with a guide hole. A connector includes a connecting sleeve and a connecting arm disposed on its outer annular surface, wherein the connecting sleeve is connected to the valve stem; A return spring is fitted around the outside of the connecting sleeve, with its two ends bent to form hooks, which hook the connecting arm and the first support plate respectively; The traction rope has its first end connected to the connecting arm and its end passing through the guide hole; Pulling the end of the traction rope can drive the valve stem to rotate and open the valve core. After releasing, the return spring drives it to return to its original position.

[0007] As a further improvement, the outer annular surface of the valve stem end is provided with multiple tooth blocks, and the inner wall of the connecting sleeve is provided with multiple tooth grooves. After the connecting sleeve is fitted onto the outside of the valve stem, the tooth blocks are embedded in the tooth grooves.

[0008] As a further improvement, the valve stem end face is provided with a threaded hole, and the connecting sleeve is fixed by screws after being fitted.

[0009] As a further improvement, the connecting arm is provided with a connecting hole, through which the traction rope passes and the guide hole, and with a first limiting block and a second limiting block at its head and end, respectively.

[0010] As a further improvement, a protective sleeve is fitted over the outer side of the traction rope between the guide hole and the second limiting block.

[0011] As can be seen from the above description of the structure of this utility model, compared with the prior art, this utility model has the following advantages: It adopts a modular design, with the valve body, valve core, and control mechanism modules assembled independently. Easily damaged components in the control mechanism, such as connectors, return springs, and traction ropes, can be individually disassembled and replaced without overall disassembly, significantly reducing maintenance difficulty and cost. The traction rope in the control mechanism is made of wear-resistant and tensile-resistant material. The first and second limit blocks at the ends are detachable, and the length can be flexibly cut with a flexible protective sleeve to adapt to different installation distance requirements without the need for additional adapters. It improves connection stability through the meshing of the valve stem's teeth with the connecting sleeve's teeth and the countersunk screw fixing structure. The return spring provides reliable reset, solving the pain points of cumbersome maintenance and poor installation adaptability of traditional equipment, and adapting to the needs of medical and laboratory clean environments. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0013] Figure 2 This is an exploded structural diagram of the valve body, connectors, and bracket.

[0014] Figure 3 This is an exploded structural diagram of the connector, return spring, and bracket.

[0015] Figure 4 This is an exploded structural diagram of the connector, return spring, traction rope, and bracket.

[0016] Figure 5 This is an exploded view of the traction rope and the second limiting block. Detailed Implementation

[0017] The specific embodiments of this utility model are described below with reference to the accompanying drawings.

[0018] As attached Figure 1As shown, a wired valve is assembled from three core modules: valve body 1, valve core 2, and control mechanism 3. Each module adopts a modular and detachable design, which not only facilitates individual inspection and maintenance, but also allows for flexible installation according to actual needs. The modules work together to achieve precise control of fluid flow, adapting to the cleanliness and stability requirements of medical and experimental scenarios.

[0019] As attached Figure 1 As shown, the valve body 1, as the basic load-bearing component of the valve, is integrally cast from corrosion-resistant and high-strength materials such as cast iron, stainless steel, or brass. It has a smooth fluid passage internally and clearly defines an inlet 11 and an outlet 12. The inlet 11 and outlet 12 are typically machined with threaded or flanged connections to facilitate sealing connections with external pipelines, ensuring leak-free fluid transport. Simultaneously, the inner wall of the valve body 1 has precision sealing steps machined corresponding to the installation position of the valve core 2, providing reliable support for the sealing action of the valve core 2.

[0020] As attached Figure 1 and Figure 2 As shown, the valve core 2, as the core actuator for controlling the flow of fluid, is made of wear-resistant ceramic or high-strength alloy material and is precisely positioned within the sealed cavity inside the valve body 1. Its core function is to control the flow of fluid between the inlet 11 and the outlet 12 through its own rotation or movement. To achieve power transmission with the control mechanism 3, the valve stem 21 of the valve core 2 extends outside the valve body 1, and a skeleton oil seal is provided at the penetration point between the valve stem 21 and the valve body 1. This ensures the flexible rotation of the valve stem 21 and effectively prevents leakage of the medium inside the valve body 1 along the outer wall of the valve stem 21.

[0021] As attached Figure 1 As shown, the control mechanism 3 is the key part for realizing the valve's wired operation. It mainly consists of four parts: connector 31, reset spring 32, traction rope 33, and bracket 34. Each component adopts an independent and detachable design, which facilitates individual maintenance and replacement. The components work together to complete the transmission of power and reset action, ensuring that the valve can respond to control commands stably and flexibly.

[0022] As attached Figure 2As shown, the bracket 34 serves as the mounting base for the control mechanism 3. It is made of stamped steel plate or forged aluminum alloy, resulting in a stable and lightweight structure that facilitates installation and deployment. Specifically, it includes a first support plate 341 and a second support plate 342 vertically welded or bolted to the upper surface of the first support plate 341, forming an L-shaped structure. The first support plate 341 is welded or bolted to the top end face of the valve body 1 or the valve stem mounting seat of the valve core 2, facilitating disassembly, maintenance, and position adjustment of the bracket 34. The installation position is precisely calibrated to ensure the installation accuracy of subsequent components. The second support plate 342 has a guide hole 343 with a polished inner wall to reduce friction during the sliding of the traction rope 33 and to precisely guide the movement direction of the traction rope 33, ensuring the linearity of power transmission.

[0023] As attached Figure 2 As shown, the connector 31 serves as the connection hub between the valve stem 21 and other components of the control mechanism 3, including a connecting sleeve 311 and a connecting arm 312 welded or integrally formed on the outer ring surface of the connecting sleeve 311. The connecting sleeve 311 is a hollow cylindrical structure, and its inner diameter is precisely matched with the outer diameter of the valve stem 21. To achieve a stable connection between the connecting sleeve 311 and the valve stem 21 and prevent relative rotation, multiple tooth blocks 211 are evenly arranged on the outer ring surface of the valve stem 21 end, and the tooth blocks 211 extend along the axial direction of the valve stem 21. Correspondingly, the inner wall of the connecting sleeve 311 is machined with multiple tooth grooves 315 that are perfectly adapted to the shape and size of the tooth blocks 211. When the connecting sleeve 311 is fitted onto the outside of the valve stem 21, the tooth blocks 211 are precisely embedded in the tooth grooves 315. Through the meshing action of the tooth surfaces, the connecting sleeve 311 is effectively radially restricted, ensuring that the connecting sleeve 311 and the valve stem 21 rotate synchronously and avoiding transmission slippage.

[0024] To further enhance the reliability of the connection between the connecting sleeve 311 and the valve stem 21 and prevent axial movement, a threaded hole is provided at the center of the end face of the valve stem 21. After the connecting sleeve 311 is fitted onto the outside of the valve stem 21 and the toothed block 211 and toothed groove 315 are engaged, a countersunk screw 314 is passed through the through hole at the end of the connecting sleeve 311 and screwed into the threaded hole of the valve stem 21, thereby axially fixing the connecting sleeve 311 and the valve stem 21. The countersunk design prevents the screw head from protruding and avoids interference with surrounding components. The connecting arm 312 extends radially outward along the connecting sleeve 311. Its length is designed according to the control stroke requirements and is thickened to improve its bending resistance, providing a stable connection point for the return spring 32 and the traction rope 33.

[0025] As attached Figure 3As shown, the return spring 32 is made of high-elasticity stainless steel wire, possessing excellent elastic recovery performance and fatigue resistance, and can withstand repeated tensile and compressive deformation for a long time without failure. The return spring 32 is fitted onto the outside of the connecting sleeve 311, with its two ends specially bent to form hooks 321. The dimensions of the hooks 321 are precisely matched to the connecting arm 312 and the first support plate 341. During assembly, the return spring 32 is fitted onto the outside of the connecting sleeve 311, with one hook 321 hooking onto the connecting arm 312 and the other hook 321 hooking onto the first support plate 341. This hook-and-loop detachable connection facilitates the replacement and maintenance of the return spring 32. In its initial state, the return spring 32 is in a naturally extended or slightly compressed state, storing initial elastic potential energy for the valve's reset action. The outer ring surface of the connecting arm 312 may be threaded to increase friction, prevent the hooks 321 from slipping, and ensure that the rotation of the connecting arm 312 can drive the return spring 32 to move. In addition, to ensure a stable connection between the hook 321 and the connecting arm 312 and the first support plate 341, hook holes can be provided at corresponding positions on the connecting arm 312 and the first support plate 341 to hook the hook 321 and prevent the return spring 32 from falling off and affecting the normal operation of the valve.

[0026] As attached Figure 4 As shown, the traction rope 33, serving as the power transmission carrier for remote control, is the core component for achieving adjustable installation length. Made of wear-resistant and tensile-resistant materials such as high-strength nylon rope, stainless steel wire rope, or plastic-coated wire rope, it can withstand frequent pulling actions and is not easily broken, making it suitable for long-term use. The first end of the traction rope 33 connects to the connecting hole 313 at the end of the connecting arm 312 facing away from the connecting sleeve 311, and the last end passes through the guide hole 343 on the second support plate 342, extending to a position easily controlled by the operator (such as a corner or control console). To adapt to the installation needs of different layouts in hospitals and laboratories, the traction rope 33 can be cut according to the actual installation distance, achieving flexible adjustment of the installation length without the need for additional adapter components, thus improving installation adaptability. To prevent the traction rope 33 from detaching from the connecting hole 313 and the guide hole 343 due to excessive tension or vibration during the pulling process, a first limiting block 331 and a second limiting block 333 are respectively provided at the beginning and end of the traction rope 33. The first limiting block 331 and the second limiting block 333 are made of nylon or metal, and their outer diameter is larger than the inner diameter of the connecting hole 313 and the guide hole 343, forming an effective mechanical limit to ensure that the traction rope 33 is always in a stable connection state.

[0027] As attached Figure 5As shown, the second limiting block 333 adopts a detachable design, which facilitates the cutting and installation of the traction rope 33. Specifically, the second limiting block 333 consists of a mounting block 3331 and a clamping screw 3334. The outer ring surface of the mounting block 3331 has a rope hole 3332 for the traction rope 33 to pass through, and its end face has a threaded hole 3333 that extends through the rope hole 3332. During assembly, after the traction rope 33 passes through the connecting hole 313 and the guide hole 343 in sequence, it is then inserted into the rope hole 3332. Subsequently, the clamping screw 3334 is screwed into the threaded hole 3333, and the traction rope 33 is pressed into the rope hole 3332 through the end of the screw, thus completing the fixation of the second limiting block 333 and the traction rope 33. When it is necessary to cut the length of the traction rope 33 or replace the traction rope 33, simply rotate the clamping screw 3334 in the opposite direction to loosen the clamping of the traction rope 33, and the second limiting block 333 can be removed or the traction rope 33 can be adjusted. The operation is convenient. To ensure consistency in disassembly and assembly at both ends, the first limiting block 331 can adopt a structural design that is completely identical to that of the second limiting block 333, thus achieving the same detachable function and further improving the ease of maintenance of the equipment. Furthermore, to further protect operators and prevent hand injuries from the surface of the traction rope 33 when pulling it, a flexible protective sleeve 332 is slidably fitted onto the outside of the traction rope 33 between the guide hole 343 and the second limiting block 333. The protective sleeve 332 is made of wear-resistant rubber or plastic, and its length can be cut according to the actual installation distance. It not only isolates the traction rope 33 from direct contact with the hand but also prevents dust, moisture, and other impurities from adhering to the surface of the traction rope 33, affecting transmission flexibility. Meanwhile, the second limiting block 333, in addition to mechanical limiting, also serves as a force point when the operator pulls the traction rope 33. Its outer diameter is larger than the guide hole 343, effectively increasing the friction between the hand and the traction rope 33, preventing slippage and improving operational safety and stability.

[0028] In actual use, when it is necessary to open the valve for water or fluid transportation, the operator pulls the end of the traction rope 33 away from the valve. Under the guidance of the guide hole 343, the traction rope 33 drives the connecting arm 312 connected to its head to rotate around the axis of the valve stem 21. The rotation of the connecting arm 312 drives the connecting sleeve 311 connected to it to rotate synchronously. In turn, the connecting sleeve 311 drives the valve stem 21 and the valve core 2 to rotate together, so that the valve core 2 opens the fluid channel inside the valve body 1, realizing the connection between the inlet 11 and the outlet 12, and the fluid can be normally transported through the valve. During this process, the rotation of the connecting arm 312 will exert a pulling or compressing effect on the return spring 32, causing the return spring 32 to undergo elastic deformation, converting the pulling force applied by the operator into elastic potential energy and storing it. When the valve needs to be closed after use, the operator releases the end of the traction rope 33. At this time, the elastic potential energy stored in the return spring 32 begins to be released. Under the action of elastic restoring force, the connecting arm 312 is pulled to rotate in the opposite direction, thereby driving the connecting sleeve 311, valve stem 21 and valve core 2 to reset in sequence, ultimately causing the valve core 2 to close the fluid passage, realizing the automatic closure of the valve without additional operation, improving the convenience of use, and the entire transmission process is stable and precise with no risk of leakage.

[0029] In summary, the valve structure of this utility model adopts a modular design, with the valve body 1, valve core 2, and control mechanism 3 each assembled independently. Easily damaged components in the control mechanism 3, such as the connector 31, return spring 32, and traction rope 33, can be individually disassembled and replaced without overall disassembly, significantly reducing maintenance difficulty and cost. The traction rope 33 in the control mechanism 3 is made of wear-resistant and tensile-resistant material. The first and second limit blocks 331 at both ends are detachable, and the length can be flexibly cut with the flexible protective sleeve 332 to adapt to different installation distance requirements without the need for additional adapters. The connection stability is improved through the engagement of the toothed block 211 of the valve stem 21 with the toothed groove 315 of the connecting sleeve 311 and the fixing with the countersunk screw 314. The return spring 32 provides reliable reset, solving the pain points of cumbersome maintenance and poor installation adaptability of traditional equipment, and adapting to the needs of medical and laboratory clean environments.

[0030] The above are merely specific embodiments of this utility model, but the design concept of this utility model is not limited thereto. Any non-substantial modifications made to this utility model using this concept shall be considered as an infringement of the protection scope of this utility model.

Claims

1. A line-controlled valve, characterized in that, include: The valve body is equipped with an inlet and an outlet; A valve core, located within the valve body, is used to control the opening and closing of the inlet and outlet. The valve stem of the valve core extends out of the valve body. Control mechanisms, including: The bracket includes a first support plate and a second support plate vertically mounted thereon. The first support plate is installed on the valve body or valve core, and the second support plate is provided with a guide hole. A connector includes a connecting sleeve and a connecting arm disposed on its outer annular surface, wherein the connecting sleeve is connected to the valve stem; A return spring is fitted around the outside of the connecting sleeve, with its two ends bent to form hooks, which hook the connecting arm and the first support plate respectively; The traction rope has its first end connected to the connecting arm and its end passing through the guide hole; Pulling the end of the traction rope can drive the valve stem to rotate and open the valve core. After releasing, the return spring drives it to return to its original position.

2. The line-controlled valve as described in claim 1, characterized in that: The valve stem end has multiple toothed blocks on its outer ring surface, and the connecting sleeve has multiple toothed grooves on its inner wall. After the connecting sleeve is fitted onto the outside of the valve stem, the toothed blocks are embedded in the toothed grooves.

3. A line-controlled valve as described in claim 1, characterized in that: The valve stem end face is provided with a threaded hole, and the connecting sleeve is fixed by screws after being fitted.

4. A line-controlled valve as described in claim 1, characterized in that: The connecting arm is provided with a connecting hole, and the traction rope passes through the connecting hole and the guide hole. The first and second limiting blocks are respectively provided at its head and end.

5. A line-controlled valve as described in claim 1, characterized in that: A protective sleeve is fitted over the outside of the traction rope between the guide hole and the second limiting block.

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