Gate valve capable of preventing material accumulation
By introducing a gear meshing structure of baffle and transmission plate into the slide gate valve, the problem of sludge residue in the L-shaped groove is solved, and the high efficiency of sealing and stability of the slide gate valve is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NANYANG ZHENGHUA IND CO LTD
- Filing Date
- 2025-05-19
- Publication Date
- 2026-05-01
AI Technical Summary
Sludge or impurities can easily remain in the L-shaped groove of existing slide gate valves, affecting their sealing performance.
Design a slide gate valve to prevent material accumulation. It adopts a baffle and transmission plate structure inside the frame. Through gear meshing and guide groove cooperation, the bottom surface of the inner wall of the frame is kept smooth. The bottom protrusion of the slide gate squeezes the transmission plate down, which drives the baffle to move up, thereby improving the sealing performance.
It effectively prevents material accumulation, keeps the bottom surface of the inner wall of the frame smooth, reduces sludge or impurity residue, and improves the sealing and stability of the insert plate.
Smart Images

Figure CN224188045U_ABST
Abstract
Description
A slide gate valve to prevent material buildup Technical Field
[0001] This utility model belongs to the field of slide gate valves, specifically, it relates to a slide gate valve for preventing material accumulation. Background Technology
[0002] Slide gate valves are widely used in the industrial field, especially in sludge treatment, where their purpose is to cut off the flow of media.
[0003] Chinese patent CN216590023U discloses a slide gate valve for preventing material accumulation. It modifies the square opening at the front of the slide gate to a beveled opening, reducing the area for material accumulation. The lower frame groove is changed to an L-shaped groove for easier material unloading and to prevent material buildup. Furthermore, the lower steel plate of the lower frame groove is replaced with a triangular support block, providing a reliable weight support point for the beveled opening at the front of the slide gate and preventing leakage caused by the front end of the slide gate sinking.
[0004] However, the aforementioned slide gate valve for preventing material accumulation modifies the bottom surface of the inner wall of the lower frame into an L-shaped groove. Sludge or other impurities can still easily remain in the L-shaped groove. These impurities are not easily squeezed out and can still affect the stopping position of the slide gate of the hydraulic slide gate valve, thereby affecting the sealing performance of the slide gate valve when it is closed.
[0005] In view of this, this utility model is proposed. Summary of the Invention
[0006] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a slide gate valve to prevent material accumulation.
[0007] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by this utility model is as follows:
[0008] A slide gate valve for preventing material accumulation includes a frame, a slide gate that slides vertically within the frame, a hydraulic push rod for driving the slide gate to slide through the upper end of the frame, a baffle that slides vertically within the frame, and a transmission plate that slides vertically elastically within the frame. The upper sides of the baffle and the transmission plate are at the same height as the bottom surface of the inner wall of the frame. Gears that mesh with the baffle and the transmission plate are rotatably fitted within the frame. A protrusion is provided at the bottom end of the slide gate.
[0009] Optionally, the frame is a U-shaped frame structure, with a first guide groove on the bottom surface of the inner wall of the frame, and a baffle slidingly engaged in the first guide groove. A second guide groove is provided on the bottom surface of the inner wall of the frame, and a transmission plate slidingly engaged in the second guide groove. A spring is fixed between the bottom surface of the inner wall of the second guide groove and the bottom surface of the transmission plate.
[0010] Optionally, a connecting groove is provided between the first guide groove and the second guide groove, and the gear rotates and engages on the inner wall of the connecting groove. The middle and lower parts of the baffle and the transmission plate are provided with multiple tooth grooves along the height direction, and the baffle and the transmission plate mesh with the gear through the tooth grooves.
[0011] Optionally, the bottom of the insert plate is provided with a storage groove, and a transmission rod is rotatably connected through the insert plate. One of the protruding ends is slidably fitted in the storage groove, and the transmission rod is threadedly engaged with the protrusion. The upper side of the insert plate is provided with a through hole communicating with the storage groove. A handwheel is provided at the upper end of the transmission rod extending out of the through hole. The outer side of the end of the transmission rod extending into the storage groove is threaded. A bearing is embedded in the upper side of the insert plate, and the upper end of the transmission rod is fixed in the bearing.
[0012] Optionally, guide strips are provided on both sides of the frame, and guide notches are provided on both sides of the insert plate. The insert plate slides on the guide strip through the guide notches, and there is a distance between the bottom surface of the guide strip and the bottom surface of the inner wall of the frame.
[0013] By adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art. Of course, any product implementing the present invention does not necessarily need to achieve all of the following advantages at the same time:
[0014] By setting the upper side of the baffle and the upper side of the transmission plate to be at the same height as the bottom surface of the inner wall of the frame, it is easy to keep the bottom surface of the inner wall of the frame smooth. This reduces the impact of residual mud or impurities on the bottom surface of the inner wall of the frame on the downward movement of the insert plate. The hydraulic push rod is activated to drive the insert plate to slide. The protrusion at the bottom of the insert plate squeezes the transmission plate downward. The transmission plate drives the baffle to move upward through the gear, which makes it easier to cover the bottom of the insert plate and improve the sealing performance of the lower part of the frame.
[0015] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description
[0016] The accompanying drawings described below are merely some embodiments. Those skilled in the art can obtain other drawings based on these drawings without any creative effort. In the drawings:
[0017] Figure 1 is a three-dimensional structural schematic diagram of an embodiment of the present invention;
[0018] Figure 2 is a cross-sectional structural schematic diagram of an embodiment of the present invention;
[0019] Figure 3 is a schematic cross-sectional view of the frame structure according to an embodiment of the present invention;
[0020] The attached diagram lists the components represented by each number as follows:
[0021] Frame 1, spring 100, insert plate 101, hydraulic push rod 102, baffle 103, transmission plate 104, gear 105, protrusion 106, first guide groove 107, second guide groove 108, connecting groove 109, storage groove 110, transmission rod 111, handwheel 112, guide bar 113, guide notch 114.
[0022] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the present invention in any way, but rather to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. Detailed Implementation
[0023] The present invention will now be described in further detail with reference to the accompanying drawings.
[0024] Please refer to Figures 1-3. In this embodiment, a slide gate valve for preventing material accumulation is provided, including a frame 1, a slide gate 101 that slides vertically inside the frame 1, a hydraulic push rod 102 for driving the slide gate 101 to slide through the upper end of the frame 1, a baffle 103 that slides vertically inside the frame 1, and a transmission plate 104 that slides vertically elastically inside the frame 1. The upper side of the baffle 103 and the upper side of the transmission plate 104 are at the same height as the bottom surface of the inner wall of the frame 1. A gear 105 that rotatably engages with the baffle 103 and the transmission plate 104 is rotatably fitted inside the frame 1. A protrusion 106 is provided at the bottom end of the slide gate 101.
[0025] By setting the upper side of the baffle 103 and the upper side of the transmission plate 104 to be at the same height as the bottom surface of the inner wall of the frame 1, it is easy to keep the bottom surface of the inner wall of the frame 1 as a smooth plane, reducing the impact of residual mud or impurities on the bottom surface of the inner wall of the frame 1 on the downward position of the insert plate 101. The hydraulic push rod 102 is activated to drive the insert plate 101 to slide. The protrusion 106 at the bottom of the insert plate 101 squeezes the transmission plate 104 downward. The transmission plate 104 drives the baffle 103 to move upward through the gear 105, which makes it easier to cover the bottom of the insert plate 101 and improve the sealing performance of the insert plate 101 at the bottom of the frame 1.
[0026] Please refer to Figures 2-3. In this embodiment, the frame 1 is a U-shaped frame structure. The bottom surface of the inner wall of the frame 1 is provided with a first guide groove 107. The baffle 103 is vertically slidably fitted in the first guide groove 107. The bottom surface of the inner wall of the frame 1 is provided with a second guide groove 108. The transmission plate 104 is vertically slidably fitted in the second guide groove 108. A spring 100 is fixed between the bottom surface of the inner wall of the second guide groove 108 and the bottom surface of the transmission plate 104, so that the transmission plate 104 can slide elastically through the spring 100. When the insert plate 101 moves upward, the spring 100 drives the transmission plate 104 to reset, so that the baffle 103 can be guided to slide through the first guide groove 107, thereby improving the stability of the sliding of the baffle 103. The baffle 103 is housed through the first guide groove 107, and the transmission plate 104 is guided to slide through the second guide groove 108, thereby improving the stability of the sliding of the transmission plate 104. The transmission plate 104 is housed through the second guide groove 108.
[0027] Please refer to Figures 1-3. In this embodiment, a connecting groove 109 is provided between the first guide groove 107 and the second guide groove 108. The gear 105 is rotatably engaged on the inner wall of the connecting groove 109. The middle and lower parts of the baffle 103 and the transmission plate 104 are provided with multiple tooth grooves along the height direction. The baffle 103 and the transmission plate 104 mesh with the gear 105 through the tooth grooves, which facilitates the meshing of the baffle 103 and the transmission plate 104 with the gear 105, so that the baffle 103 and the transmission plate 104 slide in opposite directions.
[0028] Please refer to Figures 2-3. In this embodiment, the bottom end of the insert plate 101 is provided with a storage groove 110. A transmission rod 111 is rotatably connected to the insert plate 101. One end of the protrusion 106 is slidably fitted in the storage groove 110. The transmission rod 111 is threadedly engaged with the protrusion 106. The upper side of the insert plate 101 is provided with a through hole communicating with the storage groove 110. The upper end of the transmission rod 111 extends out of the through hole and is provided with a handwheel 112. The outer side of the end of the transmission rod 111 that extends into the storage groove 110 is threaded. A bearing is embedded in the upper side of the insert plate 101. The upper end of the transmission rod 111 is fixed in the bearing, which facilitates the rotation of the transmission rod 111 by the handwheel 112, thereby rotating the protrusion 106. When the protrusion 106 is in use, it extends out of the storage groove 110. When the protrusion 106 is not in use, it is tucked back into the storage groove 110, improving the convenience of using and storing the protrusion 106.
[0029] Please refer to Figures 1-3. In this embodiment, the frame 1 is provided with guide strips 113 on both sides, and the insert plate 101 is provided with guide notches 114 on both sides. The insert plate 101 slides on the guide strips 113 through the guide notches 114, which facilitates the sliding of the insert plate 101 by the guide strips 113, thereby improving the stability of the sliding of the insert plate 101. There is a distance between the bottom surface of the guide strips 113 and the bottom surface of the inner wall of the frame 1, which helps to keep the bottom surface of the inner wall of the frame 1 smooth and prevents objects from blocking the flow of mud on the bottom surface of the inner wall of the frame 1.
[0030] The contents not described in detail in this specification are existing technologies known to those skilled in the art. All electrical appliances in this utility model are powered by an external power source or a built-in battery. No restrictions are placed on the model or specific type of any electrical appliance in this utility model. Those skilled in the art can clearly identify the applicable electrical appliance model, specific type, and power supply method based on common knowledge in the field.
[0031] This utility model is not limited to the above-described embodiments. Anyone should know that structural changes made under the guidance of this utility model, and any technical solutions that are the same as or similar to this utility model, fall within the protection scope of this utility model. Technical aspects, shapes, and structures not described in detail in this utility model are all publicly known technologies.
Claims
1. A slide gate valve for preventing material accumulation, characterized in that, include: A frame (1) is provided, with a vertically sliding insert plate (101) inside the frame (1). A hydraulic push rod (102) for driving the insert plate (101) to slide is installed through the upper end of the frame (1). A baffle (103) is provided vertically inside the frame (1). A transmission plate (104) is provided vertically elastically inside the frame (1). The upper side of the baffle (103) and the upper side of the transmission plate (104) are at the same height as the bottom surface of the inner wall of the frame (1). A gear (105) that meshes with the baffle (103) and the transmission plate (104) is provided rotatably inside the frame (1). A protrusion (106) is provided at the bottom end of the insert plate (101).
2. A slide gate valve for preventing material accumulation according to claim 1, characterized in that, The frame (1) is a square frame structure. The bottom surface of the inner wall of the frame (1) is provided with a first guide groove (107), and the baffle (103) slides vertically in the first guide groove (107).
3. A slide gate valve for preventing material accumulation according to claim 2, characterized in that, The bottom surface of the inner wall of the frame (1) is provided with a second guide groove (108), and the transmission plate (104) slides vertically in the second guide groove (108). A spring (100) is fixed between the bottom surface of the inner wall of the second guide groove (108) and the bottom surface of the transmission plate (104).
4. A slide gate valve for preventing material accumulation according to claim 3, characterized in that, A connecting groove (109) is provided between the first guide groove (107) and the second guide groove (108), and the gear (105) rotates and engages on the inner wall of the connecting groove (109).
5. A slide gate valve for preventing material accumulation according to claim 4, characterized in that, The baffle (103) and the transmission plate (104) are provided with multiple tooth grooves along the height direction in the middle and lower parts, and the baffle (103) and the transmission plate (104) mesh with the gear (105) through the tooth grooves.
6. A slide gate valve for preventing material accumulation according to claim 1, characterized in that, The bottom end of the insert plate (101) is provided with a storage groove (110), and a transmission rod (111) is rotatably connected through the insert plate (101). One end of the protrusion (106) is slidably connected in the storage groove (110), and the transmission rod (111) is threadedly connected to the protrusion (106).
7. A slide gate valve for preventing material accumulation according to claim 6, characterized in that, The upper side of the insert plate (101) is provided with a through hole that communicates with the storage groove (110). The upper end of the transmission rod (111) extends out of the through hole and is provided with a handwheel (112). The outer side of the end of the transmission rod (111) that extends into the storage groove (110) is provided with a thread. The upper side of the insert plate (101) is embedded with a bearing, and the upper end of the transmission rod (111) is fixed in the bearing.
8. A slide gate valve for preventing material accumulation according to claim 1, characterized in that, The frame (1) is provided with guide strips (113) on both sides, and the insert plate (101) is provided with guide notches (114) on both sides. The insert plate (101) slides on the guide strips (113) through the guide notches (114). There is a distance between the bottom surface of the guide strips (113) and the bottom surface of the inner wall of the frame (1).
Citation Information
Patent Citations
Gate valve capable of preventing material accumulation
CN216590023U