Wire control box capable of preventing stay wire from stretching out and drawing back
By using the cooperation between sliders and cams in the online control box, the elastic parts are used to promote the movement of sliders and cams, the problem of core wire length changes caused by thermal expansion and contraction of the pulling sleeve is solved, ensuring the stability of the core wire pulling stroke and preventing The drain valve function is incorrect or invalid, achieving the normal operation of the drain valve.
Patent Information
- Application Number
- CN202420537038.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-19
- Publication Date
- 2024-12-10
- Estimated Expiration
- 2034-03-19
AI Technical Summary
When the temperature changes in different regions, the existing wire-controlled drain valves have thermal expansion and contraction of the wire casing, which changes in the exposed length of the core wire, affecting the pulling stroke of the core wire, causing the drain valve to be incorrect or invalid, resulting in waste of water sources and unclean erosion. Or the drain valve does not work.
A wire control box with anti-stretch wire telescopicity is designed, including a housing, compensation component, elastic member, pull wire and connecting rod. Through the cooperation of the slider and cam, the elastic member is used to push the slider and cam to move in the guide groove to ensure that The core wire length remains unchanged to prevent the drain valve from being inconsistent.
It effectively prevents changes in the core wire length due to temperature changes, ensures the stability of the core wire pulling stroke, avoids the function of the drain valve or the failure of the drain valve, and prevents waste of water and unclean erosion.
Smart Images
Figure CN222140225U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of drainage valves, in particular to a wire control box capable of preventing wire extension and retraction. Background Art
[0002] The existing wire-controlled drain valve achieves drainage by pulling the wire core wire, while the dual-function drain valve achieves drainage by pulling the length of the wire core wire, which often requires very high precision of the wire core wire. In actual use, in addition to the error in processing precision, due to the influence of temperature in different regions, the wire sleeve will expand and contract due to heat, causing the exposed length of the core wire to change, affecting the pulling stroke of the core wire, thereby causing the drain valve to malfunction or even fail. For example, half drain becomes full drain, resulting in water waste; full drain becomes half drain, resulting in unclean flushing; full / half drain fails, causing the drain valve to fail to work. Utility Model Content
[0003] The utility model aims to provide a device which overcomes the above-mentioned defects and can compensate for the length of the core wire when the exposed length of the core wire changes due to thermal expansion and contraction of the wire pulling sleeve, so as to keep the pulling stroke of the core wire unchanged.
[0004] To achieve the above objectives, the solution of the utility model is:
[0005] A wire control box for preventing the extension of a wire, comprising a shell, a compensation component, an elastic member, a wire and a connecting rod; a guide groove extends forward and backward in the shell, and the shell forms blocking parts on the left and right sides of the front part of the guide groove extension path; the compensation component comprises a sliding member and a cam, the sliding member is arranged in the guide groove for sliding forward and backward, a placement cavity is formed in the sliding member, the cam can move forward and backward in the placement cavity, a first engaging tooth is formed on the front side of the cam, a second engaging tooth is formed on the front inner wall of the placement cavity, and a shaft rod is formed on the sliding member protruding on the left and right sides of the cam; the elastic member is used to push the sliding member against the sliding member The movable part slides forward to the limit position, so that the blocking part pushes against the shaft rod, driving the cam to move backward in the placement cavity, loosening the first engaging tooth from the second engaging tooth; the pulling wire includes a sleeve and a core wire inserted into the sleeve, the sleeve is fixed at the front end of the shell, and the core wire is connected to the outer periphery of the cam. When the first engaging tooth loosens the second engaging tooth, the core wire stretches and drives the cam to swing backward, and the core wire shortens and drives the cam to swing forward; the connecting rod is used to drive the sliding part to slide backward, so that the cam moves forward relative to the sliding part, meshes the first engaging tooth with the second engaging tooth, and locks the forward and backward swing of the cam.
[0006] Furthermore, the elastic member is a spring, which is arranged in the guide groove, with its rear end abutting against the rear end of the guide groove and its front end abutting against the sliding member to push the sliding member to slide forward.
[0007] Furthermore, the first engaging teeth are formed by a plurality of teeth arranged in a circumferential array on the front side wall of the cam, and the second engaging teeth are formed by a plurality of teeth arranged in a circumferential array on the inner wall of the placement cavity.
[0008] Furthermore, a shaft hole is provided at the rear portion of the shell body, and the shaft hole is located at the rear end of the guide groove. The connecting rod includes a first connecting rod and a second connecting rod. The rear end of the first connecting rod is rotatably connected in the shaft hole and swings around the shaft hole. The front end of the first connecting rod is rotatably connected to the rear end of the second connecting rod, and the front end of the second connecting rod is rotatably connected to the sliding member. The swinging of the first connecting rod drives the second connecting rod to swing, thereby driving the sliding member to slide backward.
[0009] Furthermore, it also includes a handle, which has a grip and a connecting part. The grip is fixedly mounted on the upper end of the connecting part, and the lower end of the connecting part passes through the shell and is fixedly clamped on the rear end of the first connecting rod to drive the first connecting rod to swing.
[0010] Furthermore, a first clearance port and a first notch are provided at the lower end of the front side wall of the placement cavity. The first clearance port is a strip hole for the core wire to pass through. The right end of the first notch extends to the edge of the side wall of the placement cavity, and the left end thereof is connected to the first clearance port so that the core wire can enter the first clearance port from the first notch.
[0011] Furthermore, the outer periphery of the cam is raised to form an eccentric portion, the eccentric portion is concave to form a circular eccentric groove, and a spherical mortise is provided at the end of the inner core, and the mortise is embedded in the eccentric groove.
[0012] Furthermore, a second give-way opening and a second notch are provided at the lower end of the front side wall of the eccentric groove. The second give-way opening is located on the moving path when the core wire drives the cam to swing forward and backward, so as to give way to the core wire when the core wire moves. The right end of the second notch extends to the edge of the front side wall of the eccentric groove, and the left end thereof is connected to the second give-way opening so that the core wire can enter the second give-way opening from the second notch.
[0013] After adopting the above scheme, the beneficial effects of the utility model are:
[0014] When the temperature is too high, the sleeve expands, making the sleeve longer, thereby shortening the exposed length of the core wire. At this time, the core wire drives the cam to swing forward. When the temperature is too low, the sleeve shortens, thereby lengthening the exposed length of the core wire. At this time, the core wire drives the cam to swing backward. When the pull rod drives the sliding part to slide backward, the cam moves forward relative to the sliding part, meshing the first engaging tooth with the second engaging tooth, locking the forward and backward swing of the cam. No matter whether the cam is in the backward swing state or the forward swing state, the stroke of the core wire driven by the movement of the cam to be pulled into the shell remains unchanged, thereby preventing the drain valve from malfunctioning or even failing, and preventing the drain valve from wasting water due to full drain, causing unclean flushing due to full drain, and preventing the drain valve from failing due to full / half drain. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0016] Figure 2 It is a sectional view of the overall structure of the utility model;
[0017] Figure 3 It is an exploded view of the utility model;
[0018] Figure 4 It is a schematic diagram of the structure of the upper shell of the utility model;
[0019] Figure 5 This is a schematic diagram of the cable pulling structure of the utility model;
[0020] Figure 6 It is a schematic diagram of the structure of the first engaging tooth and the second engaging tooth being loosened in the utility model;
[0021] Figure 7 This is a schematic diagram of the structure of the first engaging tooth and the second engaging tooth meshing with each other in the utility model;
[0022] Figure 8 This is a schematic diagram of the cam structure of the utility model;
[0023] Fig. 9 It is a schematic diagram of the structure of the sliding part of the utility model.
[0024] Description of labels:
[0025] 10. Shell; 11. Upper shell; 111. Insertion hole; 12. Lower shell; 121. Shaft hole; 13. Guide groove; 131. Upper guide groove; 1311. Positioning groove; 132. Lower guide groove; 14. Blocking part; 20. Compensation component; 21. Sliding part; 211. Placement cavity; 2111. Second engaging tooth; 212. First clearance opening; 213. First notch; 214. Plate; 215. Engagement part; 216. Positioning protrusion; 22. Cam; 221. First Snap-fit teeth; 222, shaft; 223, eccentric portion; 224, eccentric groove; 225, cover; 226, second clearance opening; 227, second notch; 30, elastic member; 40, pull wire; 41, sleeve; 42, core wire; 421, mortise; 50, connecting rod; 51, first connecting rod; 511, plug-in groove; 512, clamping block; 513, latch; 52, second connecting rod; 521, opening; 60, handle; 61, hand portion; 62, connecting portion; 621, snap-fit groove. DETAILED DESCRIPTION
[0026] The present invention is described in detail below with reference to the accompanying drawings and specific embodiments.
[0027] like Figures 1 to 9As shown, the utility model provides a wire control box for preventing the extension of the pull wire, including a shell 10, a compensation component 20, an elastic member 30, a pull wire 40 and a connecting rod 50; a guide groove 13 extends forward and backward in the shell 10, and the shell 10 forms a blocking portion 14 on both sides of the front of the extension path of the guide groove 13; the compensation component 20 includes a sliding member 21 and a cam 22, the sliding member 21 is slidably arranged in the guide groove 13, a placement cavity 211 is formed in the sliding member 21, and the cam 22 can move forward and backward in the placement cavity 211, a first engaging tooth 221 is formed on the front side of the cam 22, a second engaging tooth 2111 is formed on the front inner wall of the placement cavity 211, and a shaft 222 is formed on the sliding member 21 protruding from the left and right sides of the cam 22; the elastic member 30 is used to push the sliding member 21 to slide forward to the limit position, so that the blocking portion 14 pushes The shaft rod 222 drives the cam 22 to move backward in the placement cavity 211, and the first engaging tooth 221 is loosened from the second engaging tooth 2111; the pull wire 40 includes a sleeve 41 and a core wire 42 inserted into the sleeve 41, the sleeve 41 is fixed to the front end of the shell 10, and the core wire 42 is connected to the outer periphery of the cam 22. When the first engaging tooth 221 is loosened from the second engaging tooth 2111, the core wire 42 is extended to drive the cam 22 to swing backward, and the core wire 42 is shortened to drive the cam 22 to swing forward; the connecting rod 50 is used to drive the sliding member 21 to slide backward, so that the cam 22 moves forward relative to the sliding member 21, and the first engaging tooth 221 is meshed with the second engaging tooth 2111, locking the forward and backward swing of the cam 22; specifically, "front" refers to the direction in which the core wire 42 retracts into the sleeve 41, and "back" refers to the direction in which the core wire 42 extends out of the sleeve 41;
[0028] Specifically, when the temperature is overheated, the sleeve 41 of the pull wire 40 expands, causing the sleeve 41 to become longer, thereby shortening the exposed length of the core wire 42. At this time, the core wire 42 drives the cam 22 to swing forward. When the temperature is too cold, the sleeve 41 becomes shorter, thereby lengthening the exposed length of the core wire 42. At this time, the core wire 42 drives the cam 22 to swing backward. When the pull rod drives the sliding member 21 to slide backward, the cam 22 moves forward relative to the sliding member 21, and the first engaging tooth 221 engages with the second engaging tooth 2111, locking the forward and backward swing of the cam 22. Regardless of whether the cam 22 is in the backward swing state or the forward swing state, the stroke of the cam 22 driving the core wire 42 to be pulled into the housing 10 remains unchanged, thereby preventing the drain valve from malfunctioning or even failing, and preventing the drain valve from wasting water due to full drain, unclean flushing due to full drain becoming half drain, and the drain valve from failing due to full / half drain failure.
[0029] Specifically, the elastic member 30 is a spring, which is arranged in the guide groove 13, and its rear end abuts against the rear end of the guide groove 13, and its front end abuts against the sliding member 21 to push the sliding member 21 to slide forward; specifically, the housing 10 includes an upper housing 11 and a lower housing 12, and the upper housing 11 and the lower housing 12 are connected by bolts to form the housing 10, the upper housing 11 has an upper guide groove 131, and the lower housing 12 has a lower guide groove 132, and the upper guide groove 131 and the lower guide groove 132 together constitute the guide groove 13, the sliding member 21 and the cam 22 move in the guide groove 13, and the spring is specifically located in the upper housing 11 In the upper guide groove 131 inside, the rear end of the upper guide groove 131 forms a limiting groove 1311, and the rear end of the spring abuts against the limiting groove 1311. The upper end of the rear side wall of the sliding member 21 protrudes backward with a limiting protrusion 216, and the limiting protrusion 216 is located in the upper guide groove 131. The front end of the spring is sleeved on the limiting protrusion 216 to prevent the spring from falling. The elastic member 30 can also be a component in other prior arts that can elastically push the sliding member 21 to slide forward. Specifically, the above-mentioned blocking portion 14 is a blocking rib, which is specifically located on the left and right sides of the front of the extension path of the upper guide groove 131 of the upper shell 11.
[0030] Specifically, the first engaging tooth 221 is formed by a plurality of teeth in a circular array on the front side wall of the cam 22, and the second engaging tooth 2111 is formed by a plurality of teeth in a circular array on the inner wall of the placement cavity 211. The first engaging tooth 221 and the second engaging tooth 2111 are formed by a plurality of teeth, so that the first engaging tooth 221 and the second engaging tooth 2111 can be meshed together in time to lock the cam 22 from swinging back and forth in time to prevent the compensation for the core wire 42 from disappearing.
[0031] Furthermore, a shaft hole 121 is provided at the rear portion of the housing 10, and the shaft hole 121 is located at the rear end of the guide groove 13. The connecting rod 50 includes a first connecting rod 51 and a second connecting rod 52. The rear end of the first connecting rod 51 is rotatably connected to the shaft hole 121, and swings around the shaft hole 121. The front end of the first connecting rod 51 is rotatably connected to the rear end of the second connecting rod 52, and the front end of the second connecting rod 52 is rotatably connected to the sliding member 21. The swinging of the first connecting rod 51 drives the swinging of the second connecting rod 52, and drives the sliding member 21 to slide backward. Specifically, the front and rear ends of the first connecting rod 51 are both protruding downward with a latch 513, and the latch 513 at the rear end of the first connecting rod 51 is inserted into the shaft hole 121, so that the first connecting rod 51 is hinged to the shaft hole 121. The front and rear ends of the second connecting rod 52 are both provided with openings 521, the latch pin 513 at the front end of the first connecting rod 51 is inserted into the opening 521 at the rear end of the second connecting rod 52, a plate 214 is extended backward from the lower end of the rear side wall of the sliding member 21, and a clamping member 215 is protruded upward from the plate 214, and the clamping member 215 is inserted into and clamped into the opening 521 at the front end of the second connecting rod 52, so that the front and rear ends of the second connecting rod 52 are respectively hinged to the sliding member 21 and the first connecting rod 51. Specifically, the top surface of the rear end of the first connecting rod 51 has an insertion groove 511, and the insertion groove 511 has a clamping block 512; specifically, the shaft hole 121 is located on the lower shell 12, and a socket 111 is provided at a position of the upper shell 11 corresponding to the shaft hole 121.
[0032] Furthermore, it also includes a handle 60, which has a grip part 61 and a connecting part 62. The grip part 61 is fixedly installed on the upper end of the connecting part 62, and the lower end of the connecting part 62 passes through the shell 10 and is fixedly connected to the rear end of the first connecting rod 51 to drive the first connecting rod 51 to swing. Specifically, the lower end of the connecting part 62 has a slot 621 corresponding to the above-mentioned block 512, and the lower end of the connecting part 62 passes through the socket 111 of the upper shell 11 and is inserted into the plug-in slot 511 at the rear end of the first connecting rod 51, so that the slot 621 and the block 512 abut against each other, so that when the user turns the handle 60, it can drive the first connecting rod 51 to swing, and the swinging of the first connecting rod 51 drives the second connecting rod 52 to swing, thereby driving the sliding member 21 to slide backward in the guide groove 13 to perform half or full drainage of the drain valve.
[0033] Furthermore, a first clearance opening 212 and a first notch 213 are provided at the lower end of the front side wall of the placement cavity 211. The first clearance opening 212 is a strip hole for the core wire 42 to pass through. The right end of the first notch 213 extends to the edge of the side wall of the placement cavity 211, and the left end thereof is connected to the first clearance opening 212, so that the core wire 42 enters the first clearance opening 212 from the first notch 213; specifically, the first notch 213 is used for the installation of the core wire 42. During installation, the core wire 42 is placed in the first notch 213, and the core wire 42 is moved into the first clearance opening 212.
[0034] Furthermore, the outer periphery of the cam 22 is raised to form an eccentric portion 223, and the eccentric portion 223 is recessed to form a circular eccentric groove 224. A spherical mortise 421 is provided at the end of the inner core, and the mortise 421 is embedded in the eccentric groove 224 to connect the core wire 42 to the outer periphery of the cam 22, and the spherical mortise 421 can also roll and rotate in the eccentric groove 224 to facilitate the adjustment of the position of the core wire 42; specifically, the eccentric groove 224 is also provided with a cover body 225, and when the mortise 421 is embedded in the eccentric groove 224, the cover body 225 is embedded in the eccentric groove 224 to block the notch of the eccentric groove 224 to prevent the mortise 421 from escaping from the eccentric groove 224.
[0035] Furthermore, a second clearance opening 226 and a second notch 227 are provided at the lower end of the front side wall of the eccentric groove 224. The second clearance opening 226 is located on the moving path when the core wire 42 drives the cam 22 to swing forward and backward, so as to give way to the core wire 42 when the core wire 42 moves. The right end of the second notch 227 extends to the edge of the front side wall of the eccentric groove 224, and the left end thereof is connected to the second clearance opening 226, so that the core wire 42 can enter the second clearance opening 226 from the second notch 227. Specifically, when the sleeve 41 expands and contracts, whether the exposed length of the core wire 42 increases or the core wire 42 moves, the second notch 227 is not provided. When the exposed length of the wire 42 is shortened, the cam 22 is driven to swing. When the cam 22 swings, the core wire 42 moves relative to the swing of the cam 22. The second make way opening 226 allows the core wire 42 to pass through the eccentric groove 224 and make way for the relative movement of the core wire 42. The mortise 421 is kept embedded in the eccentric groove 224 and rotates relative to the cam 22, thereby connecting the core wire 42 to the outer periphery of the cam 22. The second notch 227 is used for the installation of the core wire 42. During installation, the core wire 42 is placed in the second notch 227 and the core wire 42 is moved into the second make way opening 226.
[0036] To further illustrate the various embodiments, the present invention provides drawings. These drawings are part of the disclosure of the present invention, which are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, a person of ordinary skill in the art should be able to understand other possible implementations and advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are generally used to represent similar components.
[0037] Meanwhile, the directions such as front, back, left, and right involved in this embodiment are only used as a reference for directions and do not represent directions in actual use. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.
[0038] The above description is only a preferred embodiment of the present utility model and is not a limitation on the design of the present case. Any equivalent changes made based on the key design of the present case shall fall within the protection scope of the present case.
Claims
1. A wire control box that prevents wire extension and retraction. Features: It includes a housing, a compensation component, an elastic member, a pull wire and a connecting rod; A guide groove extends frontward and rearward in the shell, and the shell is provided with blocking parts on the left and right sides of the front part of the guide groove extension path; The compensation component includes a sliding member and a cam. The sliding member is arranged in the guide groove for forward and backward sliding movement. A placement cavity is formed in the sliding member. The cam can move forward and backward in the placement cavity. A first engaging tooth is formed on the front side of the cam. A second engaging tooth is formed on the front inner wall of the placement cavity. A shaft rod is formed on the sliding member protruding from the left and right sides of the cam. The elastic member is used to push the sliding member forward to slide to the limit position, so that the blocking part pushes against the shaft rod, driving the cam to move backward in the placement cavity, and loosening the first engaging tooth from the second engaging tooth; The pull wire includes a sleeve and a core wire inserted into the sleeve. The sleeve is fixed at the front end of the housing. The core wire is connected to the outer periphery of the cam. When the first engaging tooth loosens the second engaging tooth, the core wire stretches to drive the cam to swing backward, and the core wire shortens to drive the cam to swing forward. The connecting rod is used to drive the sliding member to slide backward, so that the cam moves forward relative to the sliding member, and the first engaging tooth is engaged with the second engaging tooth, thereby locking the cam from swinging forward and backward.
2. A wire control box for preventing wire extension as claimed in claim 1, Features: The elastic member is a spring, which is arranged in the guide groove, with its rear end abutting against the rear end of the guide groove and its front end abutting against the sliding member to push the sliding member to slide forward.
3. A wire control box for preventing wire extension as claimed in claim 1, Features: The first engaging teeth are formed by a plurality of teeth arrayed on the circumference of the front side wall of the cam, and the second engaging teeth are formed by a plurality of teeth arrayed on the circumference of the inner wall of the placement cavity.
4. A wire control box for preventing wire extension as claimed in claim 1, Features: A shaft hole is provided at the rear of the shell body, and the shaft hole is located at the rear end of the guide groove. The connecting rod includes a first connecting rod and a second connecting rod. The rear end of the first connecting rod is rotatably connected in the shaft hole and swings around the shaft hole. The front end of the first connecting rod is rotatably connected to the rear end of the second connecting rod, and the front end of the second connecting rod is rotatably connected to the sliding member. The swinging of the first connecting rod drives the second connecting rod to swing, and drives the sliding member to slide backward.
5. A wire control box for preventing wire extension as claimed in claim 4, Features: It also includes a handle, which has a grip and a connecting part. The grip is fixedly mounted on the upper end of the connecting part, and the lower end of the connecting part passes through the shell and is fixedly clamped on the rear end of the first connecting rod to drive the first connecting rod to swing.
6. A wire control box for preventing wire extension as claimed in claim 1, Features: A first clearance opening and a first notch are provided at the lower end of the front side wall of the placement cavity. The first clearance opening is a strip hole for the core wire to pass through. The right end of the first notch extends to the edge of the side wall of the placement cavity, and its left end is connected to the first clearance opening so that the core wire enters the first clearance opening from the first notch.
7. A wire control box for preventing wire extension as claimed in claim 1, Features: The outer periphery of the cam is raised to form an eccentric portion, the eccentric portion is concave to form a circular eccentric groove, and a spherical mortise is arranged at the end of the inner core, and the mortise is embedded in the eccentric groove.
8. A wire control box for preventing wire extension as claimed in claim 7, Features: A second give-way opening and a second notch are provided at the lower end of the front side wall of the eccentric groove. The second give-way opening is located on the moving path when the core wire drives the cam to swing forward and backward, so as to give way to the core wire when the core wire moves. The right end of the second notch extends to the edge of the front side wall of the eccentric groove, and the left end thereof is connected to the second give-way opening so that the core wire can enter the second give-way opening from the second notch.