Self-cleaning gate valve

Abstract

The utility model discloses a self-cleaning gate valve, and relates to the technical field of gate valves. The gate valve comprises a gate valve body located in the sludge bin, two L-shaped plates are placed on the upper side portion of the gate valve body, positioning cylinders are fixedly matched with the upper side portions of the L-shaped plates, the inner side wall of the gate valve body is provided with a detachable scraping plate, the side portion of the scraping plate is attached to the inner side wall of the gate valve body, and therefore the scraping plate and the gate valve body can be detached. Sludge attached to the inner wall can be scraped off in time in the running process of the gate valve body, the problem that the sludge is accumulated on the inner wall of the gate valve body is effectively solved, the two inclined faces formed by extending the horizontal sections of the ends of the scrapers towards the inner side portions can guide the sludge to slide downwards and prevent the sludge from being accumulated at the ends of the scrapers, the accumulation preventing effect is further improved, and meanwhile the structure is simple. And the detachable scraping plate can prevent the scraping plate from obstructing the material during conveying.

Description

Technical Field

[0001] This utility model belongs to the field of slide gate valves, specifically, it relates to a self-cleaning slide gate valve. Background Technology

[0002] Slide gate valves are typically installed at the bottom of sludge silos and can be hydraulic. Their function is to cut off the downward discharge of sludge from the silo. Over time, slide gate valves may accumulate dirt and grime, causing them to malfunction.

[0003] Patent application CN222746632U discloses a slide gate valve for preventing material accumulation. Paragraph 0014 of the specification discloses that: the rotation of a motor drives a threaded rod to rotate, which in turn drives a threaded sleeve to move up and down. The up and down movement of the threaded sleeve drives a hanging plate to move up and down. This up and down movement scrapes against the inner wall of the slide gate valve, cleaning the dirt on both sides of the inner wall. This prevents material from accumulating on both sides of the valve, ensures smooth flow of the medium, avoids obstruction or blockage, prevents dirt accumulation and scaling, and maintains the normal operation of the valve.

[0004] During actual use, the following defects were found: The device drives the end of the shovel plate by hanging the plate, so that it slides along the inner wall of the slide gate valve. It can effectively remove the dirt accumulated on the side wall and significantly reduce the risk of dirt accumulation and scaling. However, since the shovel plate needs to be fixedly installed inside the slide gate valve and cannot be removed from the side of the threaded sleeve, while performing the cleaning function, it can easily obstruct the normal flow of materials in the valve and even cause blockage problems, affecting the material conveying efficiency and smoothness of the slide gate valve.

[0005] To address these shortcomings, a self-cleaning slide gate valve is proposed. Utility Model Content

[0006] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a self-cleaning slide valve.

[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 self-cleaning slide gate valve includes a slide gate valve body located inside a sludge tank. Two L-shaped plates are placed on the upper side of the slide gate valve body. A positioning cylinder is fixedly fitted on the upper side of the L-shaped plates. Two guide rods are elastically and slidably fitted on the upper side of the slide gate valve body. The ends of the guide rods are located inside the positioning cylinder. A first threaded rod is threaded into the interior of the L-shaped plates. Two T-shaped blocks are slidably fitted on the side of the slide gate valve body. A positioning plate is snapped into the side of the T-shaped blocks. The first threaded rod is located inside the positioning plate. A scraper is fixedly fitted on the side of the positioning plate. The side of the scraper is attached to the inner wall of the slide gate valve body. The horizontal section at the end of the scraper extends inward to form two inclined surfaces.

[0009] Optionally, a fixing post is fixedly fitted to the upper side of the slide valve body, and guide holes are provided at both ends of the fixing post. The end of the guide rod is slidably fitted inside the guide hole, and a sliding block is fixedly fitted to the periphery of the guide rod. A spring is fixedly fitted between the side of the sliding block and the end of the fixing post, and the spring is sleeved on the periphery of the guide rod.

[0010] Optionally, the side of the L-shaped plate is provided with a slot, and the lower end of the sliding block is located inside the slot.

[0011] Optionally, the side of the slide valve body has two T-shaped grooves, the T-shaped block slides inside the T-shaped grooves, the side of the T-shaped block has a positioning groove, and the end of the positioning plate is located inside the positioning groove.

[0012] Optionally, the L-shaped plate has a first threaded hole on its side, the first threaded rod is threaded into the first threaded hole, and a rotating disk is fixedly fitted to the end of the first threaded rod.

[0013] Optionally, the positioning plate has a through hole on its side, the first threaded rod is located inside the through hole, the T-shaped block is fixedly fitted with a connecting block on its side, and the connecting block has a second threaded hole on one side.

[0014] Optionally, a servo motor is fixedly fitted to the bottom of the L-shaped plate, and a second threaded rod is fixedly fitted to the output end of the servo motor. The second threaded rod is threadedly fitted to the second threaded hole, and a fixing plate is fixedly fitted to the lower end of the second threaded rod.

[0015] Optionally, the sludge bin has two fixedly fitted positioning plates inside, and positioning grooves are provided on both sides of the slide valve body, with the positioning plates located inside the positioning grooves.

[0016] 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:

[0017] By designing a detachable scraper on the inner wall of the slide gate valve body, the side of the scraper adheres to the inner wall of the slide gate valve body, which can promptly scrape off the sludge adhering to the inner wall during the operation of the slide gate valve body, realizing automatic cleaning of the slide gate valve and effectively reducing the problem of sludge accumulation on the inner wall of the slide gate valve body. The two inclined surfaces formed by the horizontal section at the end of the scraper extending inward can guide the sludge down and prevent sludge from accumulating at the end of the scraper, further improving the anti-accumulation effect. At the same time, the detachable scraper can avoid obstructing the material conveying process.

[0018] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0019] 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.

[0020] In the picture:

[0021] Figure 1 This is a three-dimensional structural diagram of an embodiment of the present utility model;

[0022] Figure 2 This is a schematic diagram of the first threaded rod and the second threaded rod according to an embodiment of the present invention;

[0023] Figure 3 This is a schematic diagram of an L-shaped plate structure according to an embodiment of the present invention;

[0024] Figure 4 This is a schematic diagram of a fixed column structure according to an embodiment of the present invention.

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

[0026] The valve body 100, positioning groove 101, positioning plate 102, T-slot 103, fixing column 104, guide hole 105, guide rod 106, sliding block 107, spring 108, L-shaped plate 109, slot 110, positioning cylinder 111, first threaded hole 112, first threaded rod 113, rotating disk 114, T-block 115, connecting block 116, second threaded rod 117, fixing disk 118, second threaded hole 119, positioning groove 120, positioning plate 121, through hole 122, scraper 123, inclined surface 124.

[0027] 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

[0028] The present invention will now be described in further detail with reference to the accompanying drawings.

[0029] Please see Figure 1-4 As shown, this embodiment provides a self-cleaning slide gate valve, including a slide gate valve body 100 located inside a sludge tank. Two L-shaped plates 109 are placed on the upper side of the slide gate valve body 100. A positioning cylinder 111 is fixedly fitted on the upper side of the L-shaped plates 109. Two guide rods 106 are elastically and slidably fitted on the upper side of the slide gate valve body 100. The ends of the guide rods 106 are located inside the positioning cylinder 111. A first threaded rod 113 is threadedly fitted inside the L-shaped plates 109. Two T-shaped blocks 115 are slidably fitted on the side of the slide gate valve body 100. A positioning plate 121 is snapped onto the side of the T-shaped blocks 115. The first threaded rod 113 is located inside the positioning plate 121. A scraper 123 is fixedly fitted on the side of the positioning plate 121. The side of the scraper 123 is attached to the inner wall of the slide gate valve body 100. The horizontal section at the end of the scraper 123 extends inward to form two inclined surfaces 124.

[0030] Working principle:

[0031] First, slide the guide rod 106, then place the T-block 115 inside the slide valve body 100, then place the L-shaped plate 109 on the upper side of the slide valve body 100, then release the guide rod 106. The guide rod 106 returns to its original position under elastic action, and the end of the guide rod 106 slides into the positioning cylinder 111. Then, place the end of the positioning plate 121 inside the T-block 115, and then thread the first threaded rod 113 into the L-shaped plate 109. The first threaded rod 113 slides into the positioning plate 121, and the positioning plate 121... 1. The scraper 123 is driven to adhere to the inner wall of the slide gate valve body 100, and then the T-block 115 is slid. The T-block 115 drives the side of the scraper 123 to slide on the inner wall of the slide gate valve body 100 through the positioning plate 121. The scraper 123 cleans the dirt attached to the inner wall of the slide gate valve body 100 through the inclined surface 124, reducing the problem of dirt attached to the inner wall of the slide gate valve body 100. Then the scraper 123 is removed from the inside of the slide gate valve body 100, reducing the impact of the presence of the scraper 123 on the material conveying efficiency inside the slide gate valve body 100.

[0032] By designing a detachable scraper 123 on the inner wall of the slide gate valve body 100, the side of the scraper 123 is attached to the inner wall of the slide gate valve body 100, which can scrape off the sludge adhering to the inner wall in a timely manner during the operation of the slide gate valve body 100, effectively reducing the problem of sludge accumulation on the inner wall of the slide gate valve body 100. The two inclined surfaces 124 formed by the horizontal section at the end of the scraper 123 extending inward can guide the sludge to slide down, avoiding the accumulation of sludge at the end of the scraper 123, further improving the anti-accumulation effect. At the same time, the detachable scraper 123 can avoid the obstruction of the scraper 123 during material conveying.

[0033] like Figure 1-4 As shown, in this embodiment, a fixing post 104 is fixedly fitted on the upper side of the slide valve body 100. Guide holes 105 are provided at both ends of the fixing post 104. The end of the guide rod 106 is slidably fitted inside the guide hole 105. A sliding block 107 is fixedly fitted on the periphery of the guide rod 106. A spring 108 is fixedly fitted between the side of the sliding block 107 and the end of the fixing post 104. The spring 108 is sleeved on the periphery of the guide rod 106. A slot 110 is provided on the side of the L-shaped plate 109. The lower end of the sliding block 107 is located inside the slot 110. The sliding fit between the guide rod 106 and the guide hole 105, and the fit between the sliding block 107 and the slot 110, provide good positioning and guidance for the L-shaped plate 109. During the operation of the slide gate valve, whether the scraper 123 moves to scrape material or the slide gate valve body 100 vibrates due to material flow, the L-shaped plate 109 can remain stable, ensuring that the scraper 123 accurately fits against the inner wall of the slide gate valve body to perform scraping operations, thereby improving the reliability of the scraping effect.

[0034] like Figure 1-4As shown, in this embodiment, the side of the slide gate valve body 100 has two T-shaped grooves 103. A T-shaped block 115 slides within the T-shaped groove 103. A positioning groove 120 is provided on the side of the T-shaped block 115. The end of the positioning plate 121 is located inside the positioning groove 120. A first threaded hole 112 is provided on the side of the L-shaped plate 109. A first threaded rod 113 is threaded into the first threaded hole 112. A rotating disk 114 is fixedly fitted to the end of the first threaded rod 113. A through hole 122 is provided on the side of the positioning plate 121. The first threaded rod 113 is located inside the through hole 122. The side of the T-shaped block 115 is fixedly fitted with a rotating disk 114. A connecting block 116 is fixedly fitted, and a second threaded hole 119 is opened on one side of the connecting block 116. A servo motor is fixedly fitted at the bottom of the L-shaped plate 109. The servo motor model can be BYC10-60BR6430A5-C. A second threaded rod 117 is fixedly fitted at the output end of the servo motor. The second threaded rod 117 is threadedly engaged with the second threaded hole 119. A fixed plate 118 is fixedly fitted at the lower end of the second threaded rod 117. Two positioning plates 102 are fixedly fitted inside the sludge bin. Positioning grooves 101 are opened on both sides of the slide valve body 100, and the positioning plates 102 are located inside the positioning grooves 101. When it is necessary to clean, replace, or maintain other components of the scraper 123, the servo motor should be turned off first to stop the scraper 123 from moving. Then, by rotating the rotating disk 114, the first threaded rod 113 is screwed upwards a certain distance, loosening the connection between the positioning plate 121 and the T-block 115, making it easier to remove the positioning plate 121 from the positioning groove 120 of the T-block 115. Afterwards, the scraper 123 can be cleaned or replaced. Simultaneously, the sliding fit between the T-block 115 and the T-groove 103 facilitates the inspection and maintenance of the T-block 115 and related connecting parts. The slide gate valve body 100 is installed in conjunction with the positioning plate 102 in the sludge bin through the positioning groove 101, ensuring the stable installation of the slide gate valve in the sludge bin, reducing the swaying of the slide gate valve during material conveying, and contributing to the stable operation of the entire material conveying system. The servo motor drives the second threaded rod 117 to rotate, thereby automatically moving the scraper 123 up and down to clean the material, reducing manual operation and improving cleaning efficiency. Compared to manual cleaning, automated cleaning can address material accumulation issues more promptly, preventing excessive material buildup from affecting the normal operation of the gate valve and ensuring the continuity and stability of material conveying.

[0035] 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 self-cleaning slide gate valve, comprising: The slide gate valve body (100) located inside the sludge silo is characterized in that two L-shaped plates (109) are placed on the upper side of the slide gate valve body (100), a positioning cylinder (111) is fixedly fitted on the upper side of the L-shaped plates (109), two guide rods (106) are elastically and slidably fitted on the upper side of the slide gate valve body (100), the ends of the guide rods (106) are located inside the positioning cylinder (111), and a first threaded rod (113) is threadedly fitted inside the L-shaped plates (109). The side of the slide valve body (100) has two T-shaped blocks (115) that slide together. The side of the T-shaped blocks (115) is fitted with a positioning plate (121). The first threaded rod (113) is located inside the positioning plate (121). The side of the positioning plate (121) is fixedly fitted with a scraper (123). The side of the scraper (123) is attached to the inner wall of the slide valve body (100). The horizontal section at the end of the scraper (123) extends inward to form two inclined surfaces (124).

2. A self-cleaning slide gate valve according to claim 1, characterized in that, A fixing post (104) is fixedly fitted on the upper side of the slide valve body (100). Guide holes (105) are provided at both ends of the fixing post (104). The end of the guide rod (106) is slidably fitted inside the guide hole (105). A sliding block (107) is fixedly fitted on the periphery of the guide rod (106). A spring (108) is fixedly fitted between the side of the sliding block (107) and the end of the fixing post (104). The spring (108) is sleeved on the periphery of the guide rod (106).

3. A self-cleaning slide valve according to claim 2, characterized in that, The L-shaped plate (109) has a slot (110) on its side, and the lower end of the sliding block (107) is located inside the slot (110).

4. A self-cleaning slide valve according to claim 1, characterized in that, The side of the slide valve body (100) has two T-shaped grooves (103), the T-shaped block (115) slides inside the T-shaped groove (103), the side of the T-shaped block (115) has a positioning groove (120), and the end of the positioning plate (121) is located inside the positioning groove (120).

5. A self-cleaning slide gate valve according to claim 1, characterized in that, The L-shaped plate (109) has a first threaded hole (112) on its side, and the first threaded rod (113) is threaded into the first threaded hole (112). The end of the first threaded rod (113) is fixedly fitted with a rotating disk (114).

6. A self-cleaning slide gate valve according to claim 1, characterized in that, The positioning plate (121) has a through hole (122) on its side, and the first threaded rod (113) is located inside the through hole (122).

7. A self-cleaning slide valve according to claim 1, characterized in that, The side of the T-shaped block (115) is fixedly fitted with a connecting block (116), and a second threaded hole (119) is provided on one side of the connecting block (116).

8. A self-cleaning slide valve according to claim 7, characterized in that, A servo motor is fixedly fitted to the bottom of the L-shaped plate (109), and a second threaded rod (117) is fixedly fitted to the output end of the servo motor. The second threaded rod (117) is threadedly fitted to the second threaded hole (119), and a fixed plate (118) is fixedly fitted to the lower end of the second threaded rod (117).

9. A self-cleaning slide gate valve according to claim 1, characterized in that, The sludge silo has two fixed positioning plates (102) inside. The two sides of the slide valve body (100) are provided with positioning grooves (101), and the positioning plates (102) are located inside the positioning grooves (101).

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