Track balance wedge gate valve
By incorporating reinforcing components, including a mounting bracket, slide bar, and spring, the problems of excessive friction between the valve core and the guide block and gate misalignment are solved, achieving stable gate movement and sealing, and extending service life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG FLUOR VALVE CO LTD
- Filing Date
- 2025-06-07
- Publication Date
- 2026-05-05
AI Technical Summary
Traditional wedge gate valves experience high friction between the valve core and the guide block during use, which affects their service life. Furthermore, the gate is prone to misalignment, leading to sealing failure and leakage.
A reinforcing component is installed inside the valve body, including a mounting bracket, a slide bar, a contact plate, and a spring. The slide bar and the side hole work together to limit the gate's offset, and the spring slows down the pressing process, thereby improving the stability of the gate's movement.
It improves the stability of the gate's up-and-down movement, reduces friction, prevents seal failure and leakage, and extends the service life of the valve core.
Smart Images
Figure CN224201155U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of wedge gate valve technology, specifically to a track-balanced wedge gate valve. Background Technology
[0002] A gate valve is a gate that opens and closes. The direction of the gate's movement is perpendicular to the direction of the fluid. Gate valves can only be fully open or fully closed, and cannot be used for regulation or throttling. There are two types of gate valves: flat gate valves and wedge gate valves. Wedge gate valves have a better seal because their sealing surface is at a certain angle to the vertical center line, and therefore can withstand greater pressure.
[0003] In traditional wedge gate valves, the valve core experiences significant pressure on one side during operation. As the valve core moves up and down, it is guided only by two guide blocks to maintain its vertical position. Under this pressure, the friction between the valve core and the guide blocks is substantial, which affects the valve core's service life.
[0004] Furthermore, existing wedge gate valves have the following defects in actual use: due to loosening of the actuator handle or fatigue of the valve stem and gate under long-term operating conditions, the gate may shift upwards under the impact of the fluid medium, leading to a gap between the gate and the valve seat, sealing failure, and internal leakage. Therefore, if a reinforcing unit can be added to the valve body to reinforce the gate, it will undoubtedly strengthen the internal sealing of the valve body and prevent internal leakage. Utility Model Content
[0005] Technical problems to be solved
[0006] In view of the above-mentioned shortcomings of the existing technology, the present invention provides a track-balanced wedge gate valve, which can effectively solve the problems in the existing technology.
[0007] Technical solution
[0008] This utility model provides a track-balanced wedge gate valve, including a valve body. A valve stem is disposed inside the valve body, and the bottom end of the valve stem is connected and fixed to a gate plate. A reinforcing assembly is fixed inside the valve body. The reinforcing assembly includes a mounting bracket fixed inside the valve body and a sliding rod fixed to the bottom end of the mounting bracket. A contact piece is fixed inside the valve body. The inner side of the contact piece is in contact with the outer wall of the gate plate. The inner side of the contact piece is fixedly connected to a clamping block. A spring is fixed between the clamping block and the valve body.
[0009] Furthermore, flanges are connected to both sides of the valve body.
[0010] Furthermore, both the contact piece and the clamping block are annular structures, and the outer and inner sides of the contact piece are rounded.
[0011] Furthermore, the top of the gate is provided with a side hole, and the slide rod is sleeved in the side hole and the bottom of the slide rod is fixed by a nut.
[0012] Furthermore, both the clamping block and the valve body have side grooves on their inner sides, and the spring is engaged in the side grooves.
[0013] Furthermore, the internal cavities of both the gate and the valve body are V-shaped structures.
[0014] Beneficial effects
[0015] This invention features a contact piece structure with rounded corners. The upper end of the contact piece has an inclined guide surface that can contact the gate. As the gate moves downward, the guide surface continuously pushes and embeds into the front end of the contact piece. When the contact piece moves outward, the spring structure on its inner side can slow down the entire pressing process, making the up / down movement of the gate smooth and stable. Furthermore, the clamping block structure in its side hole limits the spring's offset and prevents the spring from wobbling.
[0016] In this device, by opening side holes in the gate and inserting sliding rods into the side holes, the sliding rods on both sides and the side holes work together to ensure that the gate moves up and down. This not only relies on the valve body to limit the gate, but also supports and limits it through the sliding rods and side holes, thereby improving the stability of the gate's up and down movement and reducing the impact on the gate's movement. Attached Figure Description
[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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.
[0018] Figure 1 This is a schematic diagram of the structure of this utility model;
[0019] Figure 2 This is a cross-sectional view of the structure of this utility model;
[0020] Figure 3 This is a sectional front view of the present invention;
[0021] Figure 4 for Figure 2 A schematic diagram of the structure at point A in the middle.
[0022] The labels in the diagram represent: 1. Valve body; 2. Flange; 3. Valve stem; 4. Valve disc; 41. Side hole; 5. Reinforcing assembly; 51. Mounting bracket; 52. Slide rod; 53. Contact plate; 54. Clamping block; 541. Side groove; 55. Spring. Detailed Implementation
[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.
[0024] The present invention will be further described below with reference to the embodiments.
[0025] Example: Track-balanced wedge gate valve, see attached diagram. Figure 1 - Appendix Figure 4 The device includes a valve body 1, inside which a valve stem 3 is provided. The bottom end of the valve stem 3 is connected and fixed to a valve disc 4. A reinforcing component 5 is fixed inside the valve body 1. The reinforcing component 5 includes a mounting bracket 51 fixed inside the valve body 1 and a sliding rod 52 fixed to the bottom end of the mounting bracket 51. A contact piece 53 is fixed inside the valve body 1. The inner side of the contact piece 53 is in contact with the outer wall of the valve disc 4. The inner side of the contact piece 53 is fixedly connected to a clamping block 54. A spring 55 is fixed between the clamping block 54 and the valve body 1. In this device, by opening a side hole 41 in the gate and inserting a sliding rod 52 into the side hole 41, the sliding rods 52 on both sides and the side hole 41 work together to ensure that the gate moves up and down. This not only relies on the valve body 1 to limit the gate, but also on the sliding rods 52 and the side hole 41 to support and limit it, thereby improving the stability of the gate's up and down movement and reducing the impact on the gate's movement.
[0026] Flanges 2 are connected to both sides of the valve body 1; the contact piece 53 and the clamping block 54 are both annular structures, and the outer inner and outer sides of the contact piece 53 are rounded; a side hole 41 is opened at the top of the valve disc 4, and the slide rod 52 is sleeved in the side hole 41 and fixed at the bottom of the slide rod 52 by a nut; a side groove 541 is opened on the inner side of both the clamping block 54 and the valve body 1, and the spring 55 is locked in the side groove 541; the internal cavities of the valve disc 4 and the valve body 1 are both V-shaped structures; The novel contact piece 53 structure with rounded corners has an inclined guide surface at its upper end that can contact the gate. As the gate moves down, the guide surface continuously pushes and embeds into the front end of the contact piece 53. When the contact piece 53 moves outward, the spring 55 structure on its inner side can slow down the entire pressing process, making the up / down movement of the gate smooth and stable. Furthermore, the clamping block 54 structure in its side hole 41 limits the offset of the spring 55 and prevents the spring 55 from shaking.
[0027] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of this utility model.
Claims
1. A track-balanced wedge gate valve, characterized in that, The valve includes a valve body (1), inside which a valve stem (3) is provided. The bottom end of the valve stem (3) is connected and fixed to a gate (4). A reinforcing assembly (5) is fixed inside the valve body (1). The reinforcing assembly (5) includes a mounting bracket (51) fixed inside the valve body (1) and a sliding rod (52) fixed to the bottom end of the mounting bracket (51). A contact piece (53) is fixed inside the valve body (1). The inner side of the contact piece (53) is in contact with the outer wall of the gate (4). The inner side of the contact piece (53) is fixedly connected to a clamping block (54). A spring (55) is fixed between the clamping block (54) and the valve body (1).
2. The track-balanced wedge gate valve according to claim 1, characterized in that, Flanges (2) are connected to both sides of the valve body (1).
3. The track-balanced wedge gate valve according to claim 1, characterized in that, Both the contact piece (53) and the clamping block (54) are annular structures, and the outer and inner sides of the contact piece (53) are rounded.
4. The track-balanced wedge gate valve according to claim 1, characterized in that, The top of the gate (4) is provided with a side hole (41), and the slide rod (52) is sleeved in the side hole (41) and the bottom of the slide rod (52) is fixed by a nut.
5. The track-balanced wedge gate valve according to claim 4, characterized in that, The inner sides of both the clamping block (54) and the valve body (1) are provided with side grooves (541), and the spring (55) is engaged in the side grooves (541).
6. The track-balanced wedge gate valve according to claim 1, characterized in that, The internal cavities of both the gate (4) and the valve body (1) are V-shaped structures.