Knife valve convenient to disassemble and assemble
By employing a plug-in assembly structure and cleaning mechanism, the problem of cumbersome disassembly of traditional knife valves is solved, enabling rapid assembly and disassembly and effective cleaning, thereby improving the efficiency and reliability of knife valves.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HEBEI XINLONG INTELLIGENT CONTROL TECH CO LTD
- Filing Date
- 2025-06-05
- Publication Date
- 2026-05-05
AI Technical Summary
When traditional knife valves handle media containing solid particles or high viscosity, impurities easily accumulate in the valve cavity and gate, leading to wear, jamming, or leakage of the sealing surface. Furthermore, disassembly and installation are time-consuming and labor-intensive.
It adopts a plug-in assembly structure, which uses the cooperation of plug-in plate and arc panel, and uses telescopic spring and limit block to achieve quick disassembly and installation. Combined with cylinder-driven valve plate and scraper cleaning mechanism, it improves operation efficiency.
It simplifies the disassembly and assembly process of the knife valve, improves operating efficiency, reduces maintenance time, and prevents scale buildup and leakage in the valve cavity.
Smart Images

Figure CN224201149U_ABST
Abstract
Description
Technical Field
[0001] The embodiments disclosed herein relate to the field of knife valve technology, and more specifically, to a knife valve that is easy to disassemble and assemble. Background Technology
[0002] A knife valve, also known as a knife gate valve, is a specially designed valve whose core component is a blade-shaped gate. The up-and-down movement of the gate allows for the cutting off or control of fluid flow, making it particularly suitable for high-viscosity media containing solid particles or fibers (such as mud, sewage, and pulp).
[0003] Traditional knife valves have the following drawbacks: During long-term use, when handling media containing solid particles, fibers, or high viscosity, impurities easily accumulate in the valve cavity and gate, leading to wear, jamming, or leakage on the sealing surfaces. This necessitates disassembly and maintenance of the knife valve. Most knife valves are assembled with bolts, and disassembling or installing dozens of bolts requires repeated tightening, consuming a significant amount of time. Furthermore, the small bolt spacing restricts the space available for tool operation. Therefore, improvements are needed. Utility Model Content
[0004] To overcome the above-mentioned defects, the embodiments of this disclosure provide a knife valve that is easy to disassemble and assemble, solving the technical problem of cumbersome disassembly and assembly in related technologies.
[0005] According to one aspect, at least one embodiment of this disclosure provides a knife valve that is easy to disassemble and assemble, including a valve body. The valve body includes two housings, and a cleaning mechanism is provided on the outer side of the housings. Arc-shaped plates II are welded to both sides of the upper housing, and arc-shaped plates I are welded to both sides of the lower housing. A slot is formed on the surface of the arc-shaped plate I, and an elongated groove extending to the outer side of the arc-shaped plate I is formed on the inner side of the slot. An insert plate extending into the slot is welded to the lower side of the arc-shaped plate II. A movable groove is formed on the outer side of the insert plate. An arc-shaped panel extending into the elongated groove is slidably installed inside the movable groove. A telescopic spring I is elastically installed between the inner side of the arc-shaped panel and the inner side of the movable groove.
[0006] According to another aspect, at least one embodiment of this disclosure also provides a knife valve that is easy to disassemble and assemble, comprising: the cleaning mechanism includes a platform bolted to the outside of the housing, the surface of the housing is provided with a rectangular groove, the bottom of the platform is provided with an installation groove, a scraper is slidably installed inside the installation groove, and the bottom of the scraper is in contact with both sides of the valve plate.
[0007] According to another aspect, at least one embodiment of this disclosure also provides a knife valve that is easy to assemble and disassemble, comprising: mounting brackets bolted to both outer ends of the housing, a cylinder bolted to the top of the mounting bracket, a slot being provided inside the housing, a valve plate one and a valve plate two being slidably mounted at both ends of the slot, and the output end of the cylinder extending into the slot and being connected to the rear side of the valve plate one and the valve plate two respectively.
[0008] According to another aspect, at least one embodiment of this disclosure also provides a knife valve that is easy to disassemble and assemble, comprising: sliding grooves provided on both sides of the movable groove, and sliders slidably connected inside the sliding grooves welded to both sides of the bottom of the arc panel.
[0009] According to another aspect, at least one embodiment of this disclosure also provides a knife valve that is easy to disassemble and assemble, comprising: limiting grooves formed on both sides of the elongated groove, a button located on the front side of the arc panel being slidably installed inside the elongated groove, and limiting blocks slidably connected inside the limiting grooves being welded to both sides of the button.
[0010] According to another aspect, at least one embodiment of this disclosure also provides a knife valve that is easy to install and disassemble, comprising: a second telescopic spring elastically mounted at the bottom of the mounting groove, and a scraper located below the second telescopic spring.
[0011] According to another aspect, at least one embodiment of this disclosure also provides a knife valve that is easy to disassemble and assemble, comprising: connecting plates welded to both sides of the bottom of the scraper, the connecting plates being slidably connected inside the mounting groove.
[0012] According to another aspect, at least one embodiment of this disclosure also provides a knife valve that is easy to assemble and disassemble, comprising: the distance between the limiting block and the limiting groove is equal to the distance between the front end of the arc panel and the movable groove, and the bottom of the button is tightly fitted to the front end of the arc panel.
[0013] According to another aspect, at least one embodiment of this disclosure also provides a knife valve that is easy to install and remove, comprising: after the insert plate is inserted into the interior of the slot, the limiting block is placed at the innermost end of the limiting groove.
[0014] According to another aspect, at least one embodiment of this disclosure also provides a knife valve that is easy to disassemble and assemble, including: when the limiting block is placed at the foremost end of the limiting groove, the arc panel is completely retracted into the interior of the movable groove.
[0015] The beneficial effects of the embodiments disclosed herein are as follows:
[0016] In this disclosure, the arc panel is inserted into the slot and then into the long slot, thereby assembling the arc plate and the insert plate. When disassembly is required, simply press the button to push the arc panel into the movable slot and pull it out to complete the disassembly operation. Compared with traditional knife valves, this easy-to-assemble knife valve improves the overall efficiency of disassembly and assembly through the press-and-plug assembly method, making it easier to use. Attached Figure Description
[0017] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments of this disclosure will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this disclosure and these drawings without any creative effort.
[0018] Figure 1 This is a schematic diagram of the structure of this utility model;
[0019] Figure 2 This is a schematic diagram of the overall structure of this utility model;
[0020] Figure 3 This is a schematic diagram of the valve plate of this utility model;
[0021] Figure 4 This is a schematic diagram of the arc-shaped plate of this utility model;
[0022] Figure 5 This is a schematic diagram of the vertical cross-section of the arc-shaped plate of this utility model;
[0023] Figure 6 This is a schematic diagram of the button of this utility model;
[0024] Figure 7 This is a schematic diagram of the vertical cross-section of the platform of this utility model.
[0025] In the diagram: 1. Valve body; 101. Housing; 102. Empty groove; 103. Valve plate one; 104. Valve plate two; 105. Arc plate one; 106. Rectangular groove; 107. Slot; 108. Long groove; 109. Limiting groove; 110. Arc plate two; 111. Insert plate; 112. Movable groove; 113. Arc panel; 114. Slide groove; 115. Slider; 116. Telescopic spring one; 117. Button; 118. Limiting block; 2. Cylinder; 3. Cleaning mechanism; 31. Platform; 32. Mounting groove; 33. Scraper; 34. Telescopic spring two; 35. Connecting plate; 4. Mounting bracket. Detailed Implementation
[0026] The present disclosure will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present disclosure and are not intended to limit the scope of the disclosure.
[0027] To keep the drawings concise, each drawing only schematically shows the parts relevant to the disclosure; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of components with the same structure or function is schematically shown, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."
[0028] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linkage" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure based on the specific circumstances.
[0029] In this disclosure, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0030] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this disclosure.
[0031] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0032] like Figures 1-7As shown, a knife valve that is easy to disassemble and assemble is illustrated in one embodiment of the present disclosure. It includes a valve body 1, which includes two housings 101. A cleaning mechanism 3 is provided on the outer side of the housing 101. Arc-shaped plates 110 are welded to both sides of the upper housing 101, and arc-shaped plates 105 are welded to both sides of the lower housing 101. A slot 107 is provided on the surface of the arc-shaped plate 105. A long groove 108 extending to the outer side of the arc-shaped plate 105 is provided on the inner side of the slot 107. An insert plate 111 extending into the slot 107 is welded below the arc-shaped plate 110. A movable groove 112 is provided on the outer side of the insert plate 111. An arc panel 113 extending into the long groove 108 is slidably installed inside the movable groove 112. A telescopic spring 116 is elastically installed between the inner side of the arc panel 113 and the inner side of the movable groove 112.
[0033] The long groove 108 has limiting grooves 109 on both sides. A button 117 located on the front side of the arc panel 113 is slidably installed inside the long groove 108. Limiting blocks 118 are welded to both sides of the button 117 and are slidably connected inside the limiting grooves 109. The distance between the limiting blocks 118 and the limiting grooves 109 is equal to the distance between the front end of the arc panel 113 and the movable groove 112. The bottom of the button 117 is in close contact with the front end of the arc panel 113. After the insert plate 111 is inserted into the slot 107, the limiting block 118 is placed at the innermost end of the limiting groove 109. When the limiting block 118 is placed at the front end of the limiting groove 109, the arc panel 113 is completely retracted into the movable groove 112.
[0034] In some examples, when assembling the housings 101, simply place the second arc plate 110 and the first arc plate 105 perpendicularly, then insert the insert plate 111 into the slot 107. At this time, the arc panel 113 is compressed by the upper side of the insert plate 111 into the movable groove 112, causing the arc panel 113 to compress the first telescopic spring 116, causing the telescopic spring 116 to deform. When the arc panel 113 is fully retracted into the movable groove 112, the insert plate 111 is fully inserted into the slot 107. When the 13 moves to the inside of the long groove 108, the telescopic spring 116 releases its elastic potential energy to push the arc panel 113 into the inside of the long groove 108, causing the arc panel 113 to push the button 117 outward, thereby completing the assembly of the housing 101. When it needs to be disassembled, simply press the button 117, causing the button 117 to move inward inside the long groove 108 to squeeze the arc panel 113, so that the arc panel 113 is completely retracted into the inside of the movable groove 112. At this time, pull out the arc plate 110 to separate the housings 101.
[0035] By inserting the insert plate 111 into the slot 107, the arc panel 113 is inserted into the long slot 108, thereby assembling the arc plate 110 and the insert plate 111. When disassembly is required, simply press the button 117 to push the arc panel 113 into the movable slot 112 and pull it outward to complete the disassembly operation. Compared with traditional knife valves, this easy-to-disassemble knife valve improves the efficiency of disassembly and assembly through the press-and-plug assembly method, making it easier to use.
[0036] like Figures 1-7 As shown, this illustrates a knife valve that is easy to disassemble and assemble according to another embodiment of the present disclosure. The cleaning mechanism 3 includes a platform 31 bolted to the outside of the housing 101. A rectangular groove 106 is formed on the surface of the housing 101. An installation groove 32 is formed at the bottom of the platform 31. A scraper 33 is slidably installed inside the installation groove 32. The bottom of the scraper 33 is in contact with both sides of the valve plate 104. A telescopic spring 34 is elastically installed at the bottom of the installation groove 32. The scraper 33 is located below the telescopic spring 34. Connecting plates 35 are welded to both sides of the bottom of the scraper 33. The connecting plates 35 are slidably connected inside the installation groove 32.
[0037] In some examples, the scraper 33 is inserted into the interior of the rectangular groove 106, and then the platform 31 is bolted to both sides of the housing 101. The scraper 33 is limited by the valve plate 104. When the valve plate 104 moves, the scraper 33 cleans the material on the surface of the valve plate 104. When the scraper 33 wears, the extension spring 34 releases elastic potential energy to push the scraper 33 downward, so that the scraper 33 is always in close contact with the valve plate 104.
[0038] like Figures 1-3 As shown, this illustrates a knife valve that is easy to assemble and disassemble in another embodiment of the present disclosure. Mounting brackets 4 are bolted to both outer ends of the housing 101. A cylinder 2 is bolted to the top of the mounting bracket 4. A slot 102 is provided inside the housing 101. A valve plate 103 and a valve plate 104 are slidably mounted at both ends of the slot 102, respectively. The output end of the cylinder 2 extends into the interior of the slot 102 and is connected to the rear side of the valve plate 103 and the valve plate 104, respectively.
[0039] In some examples, the cylinder 2 is activated, causing valve plate 103 and valve plate 104 to slide inside the slot 102, thereby achieving the function of switching valve body 1.
[0040] like Figure 5 As shown, this illustrates a knife valve that is easy to assemble and disassemble in another embodiment of the present disclosure. The movable groove 112 has sliding grooves 114 on both sides, and the bottom sides of the arc panel 113 are welded with sliders 115 that are slidably connected inside the sliding grooves 114.
[0041] In some examples, the movement of the curved panel 113 inside the movable groove 112 causes the slider 115 to move inside the slide groove 114, thereby limiting the movement of the curved panel 113.
[0042] Working principle and usage process of this utility model:
[0043] When assembling the housings 101, simply place the second arc plate 110 and the first arc plate 105 perpendicularly, then insert the insert plate 111 into the slot 107. At this time, the arc panel 113 is compressed by the upper side of the insert plate 111 and retracts into the movable groove 112, causing the arc panel 113 to compress the first telescopic spring 116, causing the telescopic spring 116 to deform. When the arc panel 113 is fully retracted into the movable groove 112, the insert plate 111 is fully inserted into the slot 107. When the arc panel 113 moves... When the device moves to the inside of the long slot 108, the telescopic spring 116 releases its elastic potential energy to push the arc panel 113 into the inside of the long slot 108, causing the arc panel 113 to push the button 117 outward, thereby completing the assembly of the housing 101. When it needs to be disassembled, simply press the button 117, causing the button 117 to move inward inside the long slot 108 to squeeze the arc panel 113, so that the arc panel 113 is completely retracted into the inside of the movable slot 112. At this time, pull out the arc plate 110 to separate the housings 101.
[0044] The scraper 33 is inserted into the rectangular groove 106, and then the platform 31 is bolted to both sides of the housing 101. The scraper 33 is limited by the valve plate 104. When the valve plate 104 moves, the scraper 33 cleans the material on the surface of the valve plate 104. When the scraper 33 wears, the extension spring 34 releases elastic potential energy to push the scraper 33 downward, so that the scraper 33 is always in close contact with the valve plate 104.
[0045] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0046] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
[0047] It should be noted that the above embodiments are only used to illustrate the technical solutions of this disclosure and are not intended to limit it. Although this disclosure has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this disclosure without departing from the spirit and scope of the technical solutions of this disclosure, and all such modifications and substitutions should be covered within the scope of the claims of this disclosure.
Claims
1. A knife valve that is easy to assemble and disassemble, comprising a valve body (1), characterized in that: The valve body (1) includes two housings (101). A cleaning mechanism (3) is provided on the outer side of the housing (101). Arc-shaped plates (110) are welded to both sides of the upper housing (101), and arc-shaped plates (105) are welded to both sides of the lower housing (101). A slot (107) is provided on the surface of the arc-shaped plate (105). A long groove (108) extending through to the outer side of the arc-shaped plate (105) is provided on the inner side of the slot (107). An insert plate (111) extending into the slot (107) is welded below the arc-shaped plate (110). A movable groove (112) is provided on the outer side of the insert plate (111). An arc panel (113) extending into the long groove (108) is slidably installed inside the movable groove (112). A telescopic spring (116) is elastically installed between the inner side of the arc panel (113) and the inner side of the movable groove (112).
2. The knife valve that is easy to disassemble and assemble according to claim 1, characterized in that: The cleaning mechanism (3) includes a platform (31) bolted to the outside of the housing (101). A rectangular groove (106) is provided on the surface of the housing (101). An installation groove (32) is provided at the bottom of the platform (31). A scraper (33) is slidably installed inside the installation groove (32). The bottom of the scraper (33) is in contact with both sides of the valve plate (104).
3. The knife valve that is easy to disassemble and assemble according to claim 1, characterized in that: Mounting brackets (4) are bolted to both outer ends of the housing (101). A cylinder (2) is bolted to the top of the mounting bracket (4). A slot (102) is provided inside the housing (101). A valve plate (103) and a valve plate (104) are slidably mounted at both ends of the slot (102). The output end of the cylinder (2) extends into the interior of the slot (102) and is connected to the rear side of the valve plate (103) and the valve plate (104) respectively.
4. The knife valve that is easy to disassemble and assemble according to claim 1, characterized in that: The movable groove (112) has sliding grooves (114) on both sides, and the bottom sides of the arc panel (113) are welded with sliders (115) that are slidably connected inside the sliding grooves (114).
5. The knife valve that is easy to disassemble and assemble according to claim 1, characterized in that: Limiting grooves (109) are provided on both sides of the long groove (108). A button (117) located on the front side of the arc panel (113) is slidably installed inside the long groove (108). Limiting blocks (118) that are slidably connected inside the limiting groove (109) are welded on both sides of the button (117).
6. A knife valve that is easy to disassemble and assemble according to claim 2, characterized in that: A second telescopic spring (34) is elastically installed at the bottom of the mounting groove (32), and the scraper (33) is located below the second telescopic spring (34).
7. A knife valve that is easy to disassemble and assemble according to claim 2, characterized in that: The scraper (33) has connecting plates (35) welded to both sides of its bottom, and the connecting plates (35) are slidably connected inside the mounting groove (32).
8. A knife valve that is easy to disassemble and assemble according to claim 5, characterized in that: The distance between the limiting block (118) and the limiting groove (109) is equal to the distance between the front end of the arc panel (113) and the movable groove (112), and the bottom of the button (117) is in close contact with the front end of the arc panel (113).
9. A knife valve that is easy to disassemble and assemble according to claim 5, characterized in that: After the insert plate (111) is inserted into the slot (107), the limiting block (118) is placed at the innermost end of the limiting groove (109).
10. A knife valve that is easy to disassemble and assemble according to claim 5, characterized in that: When the limiting block (118) is placed at the front end of the limiting groove (109), the arc panel (113) is completely retracted into the interior of the movable groove (112).