Bottom-mounted slide gate valve

Abstract

This disclosure discloses a bottom-moving slide gate valve, comprising a valve body, a valve plate, and a sliding guide. The valve body forms a valve cavity. The valve plate is slidably disposed within the valve body, capable of laterally sliding in and out of the valve cavity to block / open the valve cavity. The sliding guide slides upwards against the lower end of the valve plate to guide the sliding direction of the valve plate. This bottom-moving slide gate valve, with its valve plate moving from the bottom, exhibits high operational stability and reliability.

Description

Technical Field

[0001] This disclosure relates to the field of valve technology, and more particularly to bottom-mounted slide gate valves. Background Technology

[0002] In related technologies, slide gate valves are key control devices used in industrial pipeline systems, primarily for controlling the flow of media such as gas. However, currently, slide gate valves in related technologies are typically top-mounted, meaning the valve plate is slidably mounted on a slide rail bracket at the top of the valve. The valve plate moves by moving from the top, which results in poor stability and reliability during the valve plate's movement. Summary of the Invention

[0003] In view of the shortcomings of the prior art described above, the purpose of this disclosure is to provide a bottom-mounted slide gate valve, wherein the valve plate moves from the bottom, and has strong operational stability and reliability.

[0004] This disclosure provides a bottom-mounted slide gate valve, comprising: a valve housing forming a valve cavity; a valve plate disposed on the valve housing, which can slide laterally into and out of the valve cavity to block / connect the valve cavity; and a sliding guide member that slides upward with the lower end of the valve plate to guide the sliding direction of the valve plate.

[0005] According to some embodiments provided in this disclosure, one of the sliding guide and the valve plate is provided with a rolling element for rolling contact with the other.

[0006] According to some embodiments provided in this disclosure, the rolling element and / or the sliding guide are provided with at least one limiting portion for limiting the longitudinal jitter of the valve plate.

[0007] According to some embodiments provided in this disclosure, the sliding guide includes a first guide portion and a second guide portion extending to opposite sides of the valve housing, respectively;

[0008] The valve plate is provided with blind holes and through holes arranged horizontally. When the valve plate slides to the first guide part, one of the blind holes and the through holes is located in the valve cavity to realize one of the conduction and isolation of the valve cavity. When the valve plate slides to the second guide part, the other of the blind holes and the through holes is located in the valve cavity to realize the other of the conduction and isolation of the valve cavity.

[0009] According to some embodiments provided in this disclosure, it further includes: a support frame fixed below the valve housing, and a reinforcing member extending from the side and fixed below the sliding guide.

[0010] According to some embodiments provided in this disclosure, it further includes: a plate drive mechanism, comprising: a plate drive assembly for providing rotational motion for driving; and a plate transmission assembly connected to the plate drive assembly and the valve plate, for converting the rotational motion of the plate drive assembly into a sliding motion that drives the valve plate to slide.

[0011] According to some embodiments provided in this disclosure, the plate drive assembly includes: a plate rotating member, which is rotatably connected to the plate drive assembly; and a plate moving member, which is fixed to the valve plate and meshes with the plate rotating member, so as to move with the plate rotating member to drive the valve plate to move.

[0012] According to some embodiments provided in this disclosure, the valve housing includes: a first valve member and a second valve member movable toward / away from the valve plate to clamp / release the valve plate;

[0013] The down-mounted slide gate valve further includes a clamping drive mechanism for driving the first valve and the second valve to move closer or further apart.

[0014] According to some embodiments provided in this disclosure, the clamping drive mechanism includes: a plurality of clamping rotary shafts threadedly engaged with a plurality of threaded points in the second valve and / or the first valve to drive the second valve and the first valve to move closer to / away from each other during rotation; a clamping drive member connected to one of the clamping rotary shafts to drive the one of the clamping rotary shafts to rotate; and a rotation drive assembly connected to the plurality of clamping rotary shafts to drive the other clamping rotary shafts to rotate when one of the clamping rotary shafts rotates.

[0015] According to some embodiments provided in this disclosure, the rotation drive assembly includes: a plurality of clamping rotating members, each fixed to a plurality of clamping rotating shafts in a corresponding manner; and a clamping rotating ring, which engages with the plurality of clamping rotating members to drive the other clamping rotating members to rotate when one of the clamping rotating members is driven to rotate by the clamping rotating shaft, thereby driving the other clamping rotating shafts to rotate. Attached Figure Description

[0016] Figure 1 This is a front view of the bottom-mounted slide gate valve in its first operating state, according to an embodiment of this disclosure.

[0017] Figure 2 This is a side view of a portion of the bottom-mounted slide gate valve according to an embodiment of this disclosure.

[0018] Figure 3 This is a front view of the bottom-mounted slide gate valve in the second operating state according to an embodiment of this disclosure.

[0019] Figure 4 yes Figure 2 An enlarged schematic diagram of part A in the middle.

[0020] Figure 5 This is a top view of the bottom-mounted slide gate valve in its first operating state according to an embodiment of the present disclosure.

[0021] Figure 6 This is a side view of another part of the bottom-mounted slide gate valve according to an embodiment of this disclosure.

[0022] Figure label:

[0023] 11. Valve body; 111. First valve component; 112. Second valve component; 1121. Threaded point; 113. Third valve component; 114. Telescopic valve component;

[0024] 12. Valve plate; 121. Blind hole; 122. Through hole;

[0025] 13. Sliding guide; 131. First guide part; 132. Second guide part;

[0026] 14. Rolling element; 141. Limiting part; 142. Limiting groove;

[0027] 15. Support frame;

[0028] 16. Reinforcing component; 161. First reinforcing bracket; 162. Second reinforcing bracket;

[0029] 17. Clamping drive mechanism; 171a. First clamping rotating shaft; 171b. Second clamping rotating shaft; 171c. Third clamping rotating shaft; 171d. Fourth clamping rotating shaft; 172a. First clamping rotating component; 172b. Second clamping rotating component; 172c. Third clamping rotating component; 172d. Fourth clamping rotating component; 173. Clamping rotating ring; 174. Clamping drive component;

[0030] 18. Board conveyor drive mechanism; 181. Board conveyor drive assembly; 1811. Board conveyor drive motor; 1812. Board conveyor rotation shaft; 182. Board conveyor transmission assembly; 1821. Board conveyor rotating component; 1822. Board conveyor moving component. Detailed Implementation

[0031] The following specific examples illustrate the implementation of this disclosure. Those skilled in the art can easily understand other advantages and effects of this disclosure from the information disclosed herein. This disclosure can also be implemented or applied through other different specific embodiments, and various details in this disclosure can be modified or changed according to different viewpoints and application modules without departing from the spirit of this disclosure. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this disclosure can be combined with each other.

[0032] The embodiments of this disclosure will now be described in detail with reference to the accompanying drawings, so that those skilled in the art to which this disclosure pertains can readily implement it. This disclosure may be embodied in many different forms and is not limited to the embodiments described herein.

[0033] In this disclosure, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic represented in connection with that embodiment or example is included in at least one embodiment or example of this disclosure. Furthermore, the specific features, structures, materials, or characteristics represented may be combined in any suitable manner in any one or a group of embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples represented in this disclosure, as well as the features of those different embodiments or examples.

[0034] Furthermore, the terms "first" and "second" are used for illustrative purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the representation of this disclosure, "a set" means two or more, unless otherwise explicitly specified.

[0035] For the purpose of clarity, devices unrelated to the description are omitted, and the same or similar components throughout the specification are given the same reference numerals.

[0036] Throughout this specification, when it is said that a device is "connected" to another device, this includes not only "direct connection" but also "indirect connection" by placing other components in between. Furthermore, when it is said that a device "comprises" a certain constituent element, unless otherwise stated otherwise, this does not exclude other constituent elements, but rather implies that other constituent elements may be included.

[0037] While the terms first, second, etc., are used in some examples herein to refer to various elements, these elements should not be limited by these terms. These terms are used only to distinguish one element from another. For example, first interface and second interface, etc., are used. Furthermore, as used herein, the singular forms “a,” “an,” and “the” are intended to also include the plural forms unless the context indicates otherwise. It should be further understood that the terms “comprising,” “including,” indicate the presence of the stated feature, step, operation, element, module, item, kind, and / or group, but do not exclude the presence, occurrence, or addition of one or more other features, steps, operations, elements, modules, items, kinds, and / or groups. The terms “or” and “and / or” as used herein are interpreted as inclusive, or mean any one or any combination thereof. Thus, “A, B, or C” or “A, B, and / or C” means “any one of: A; B; C; A and B; A and C; B and C; A, B, and C.” Exceptions to this definition will only occur if the combination of elements, functions, steps, or operations is inherently mutually exclusive in some way.

[0038] The technical terms used herein are for reference only to specific embodiments and are not intended to limit the scope of this disclosure. The singular form used herein includes the plural form unless the statement explicitly indicates otherwise. The word "comprising" as used in this specification means to specify a particular characteristic, region, integer, step, operation, element, and / or component, and does not exclude the presence or addition of other characteristics, regions, integers, steps, operations, elements, and / or components.

[0039] Although not explicitly defined, all terms, including technical and scientific terms used herein, shall have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure pertains. Terms defined in commonly used dictionaries shall be further interpreted as having a meaning consistent with the relevant technical literature and the message of the present disclosure, and shall not be over-interpreted as having an ideal or overly formulaic meaning unless otherwise defined.

[0040] In related technologies, slide gate valves are usually top-mounted slide gate valves, meaning that the valve plate is usually slidably mounted on the top of the slide gate valve. The valve plate moves by sliding from the top of the valve body. This method makes it easy for the valve plate to fall down after moving for a long time, resulting in poor stability and reliability of the valve plate operation.

[0041] In view of this, the present disclosure provides a bottom-mounted slide gate valve, wherein the slide gate valve moves from the bottom and the valve plate is well supported during movement, making it difficult for it to fall downwards. The valve plate has strong working stability and reliability.

[0042] Figure 1 This is a front view of the bottom-mounted slide gate valve in its first operating state, according to an embodiment of this disclosure. Figure 2This is a side view of a portion of the bottom-mounted slide gate valve according to an embodiment of this disclosure. (See also...) Figure 1 and Figure 2 The bottom-mounted slide gate valve of this disclosure includes a valve body 11, a valve plate 12, and a sliding guide 13.

[0043] The valve housing 11 forms a valve cavity. The valve plate 12 is laterally slidable into and out of the valve cavity and disposed on the valve housing 11 to block / open the valve cavity. Optionally, the valve housing 11 includes a first valve member 111 and a second valve member 112. The first valve member 111 and the second valve member 112 are disposed opposite to each other and respectively form a first channel and a second channel for fluid flow and for forming the valve cavity. Specifically, the flow direction of the fluid can be as follows: Figure 2 As indicated by the arrow in the diagram. The valve plate 12 is laterally slidable between the first valve member 111 and the second valve member 112, thereby connecting the first valve member 111 and the second valve member 112, thus opening the valve cavity, and disconnecting the first valve member 111 and the second valve member 112, thus disconnecting the valve cavity.

[0044] The sliding guide 13 slides upwards and engages with the lower end of the valve plate 12 to guide the sliding direction of the valve plate 12.

[0045] Optionally, the sliding guide 13 includes a first guide portion 131 and a second guide portion 132 extending to opposite sides of the valve housing 11. The valve plate 12 has laterally arranged blind holes 121 and through holes 122. When the valve plate 12 slides to the first guide portion 131, one of the blind holes 121 and the through holes 122 is located within the valve cavity, thereby achieving either opening or closing of the valve cavity.

[0046] Figure 3 This is a front view of the bottom-mounted slide gate valve in its second operating state, according to an embodiment of this disclosure. (See also...) Figure 3 When the valve plate 12 slides to the second guide portion 132, the other of the blind hole 121 and the through hole 122 is located in the valve cavity, so as to realize the other of the conduction and isolation of the valve cavity.

[0047] For example, see Figure 1 and Figure 2 When the valve plate 12 slides to the first guide portion 131, the through hole 122 is located within the valve cavity to connect the valve cavity, that is, to connect the first valve member 111 and the second valve member 112. (See also...) Figure 2 and Figure 3When the valve plate 12 slides the second guide portion 132, the blind hole 121 is located within the valve cavity to isolate the valve cavity, that is, to isolate the first valve member 111 and the second valve member 112. Of course, the positions of the blind hole 121 and the through hole 122 can also be interchanged, so that when the valve plate slides to the first guide portion, the blind hole is located within the valve cavity to isolate the valve cavity, while when the valve plate reaches the second guide portion, the through hole is located within the valve cavity to open the valve cavity.

[0048] During the above process, as the valve plate 12 slides laterally to enter and exit the valve housing 11, the sliding guide 13 supports the valve plate 12 and guides its sliding. Therefore, the valve plate 12 is less likely to fall downwards during its sliding movement, which helps ensure the stability and reliability of the valve plate 12 during its sliding operation.

[0049] Figure 4 yes Figure 2 An enlarged view of section A. (See attached diagram) Figure 4 One of the sliding guide 13 and the valve plate 12 is provided with at least one rolling element 14 for rolling contact with the other. For example, the top of the sliding guide 13 is provided with a rolling element 14 for rolling contact with the valve plate 12. Alternatively, the bottom of the valve plate is provided with a rolling element for rolling contact with the sliding guide. Thus, when the valve plate 12 is guided by the sliding guide 13 to slide along the extending direction of the sliding guide 13, rolling friction occurs between the valve plate 12 and the sliding guide 13. The frictional force is small, and the sliding guide 13 and the valve plate 12 are unlikely to be damaged by friction.

[0050] Figure 5 This is a top view of the bottom-mounted slide gate valve according to an embodiment of the present disclosure in its first operating state. (See also...) Figure 1 and Figure 5 There are multiple rolling elements 14, and the multiple rolling elements 14 are spaced apart along the extending direction of the sliding guide 13. For example... Figure 1 and Figure 5 As shown, the first guide portion 161 and the second guide portion 162 are each provided with three of the aforementioned rolling elements 14. However, it is understood that the number of the rolling elements 14 is not limited to this and can be adjusted adaptively.

[0051] Specifically, each of the rolling elements 14 is rotatably disposed on the sliding guide 13 about a longitudinal axis, thereby rolling. Each of the rolling elements 14 is implemented as a cylinder with no sharp edges on its outer peripheral surface, thereby helping to reduce friction.

[0052] Optionally, see Figure 4The rolling element 14 and / or the sliding guide 13 are provided with at least one limiting portion 141 for limiting the longitudinal jitter of the valve plate 12. That is, the rolling element 14 is provided with at least one limiting portion 141 for limiting the longitudinal jitter of the valve plate 12. And / or, the sliding guide 13 is provided with at least one limiting portion 141 for limiting the longitudinal jitter of the valve plate 12. Therefore, when the valve plate 12 slides under the guidance of the sliding guide 13, the limiting portion 141 can limit the longitudinal jitter of the valve plate 12, thereby helping to ensure the sliding stability of the valve plate 12 and preventing the longitudinal jitter of the valve plate 12 from deviating from the sliding guide 13.

[0053] Specifically, the rolling element 14 is provided with limiting parts 141 on opposite sides, and the two limiting parts 141 cooperate with the rolling element 14 to form a limiting groove 142 that is adapted to the thickness of the valve plate 12 to limit the longitudinal shaking of the valve plate 12 during sliding.

[0054] Optionally, see Figure 2 The first valve element 111 and the second valve element 112 are movably positioned close to / away from each other to cooperate in clamping / releasing the valve plate 12. In other words, when the valve plate 12 needs to be stably maintained in the position of connecting / disconnecting the first valve element 111 and the second valve element 112, the first valve element 111 and the second valve element 112 move closer to each other to cooperate in clamping the valve plate 12, thereby allowing the valve plate 12 to be maintained relatively stably in the disconnected / connected state, achieving stable flow or disconnection of the fluid medium. When the valve plate 12 needs to move to switch the disconnected / connected state of the fluid medium, the first valve element 111 and the second valve element 112 move away from each other to release the valve plate 12, thereby making the valve plate 12 movable.

[0055] Optionally, the first valve 111 is fixedly disposed, and the second valve 112 is movable to move closer to / away from the first valve 111, so as to clamp the valve plate 12 when the second valve 112 moves closer to the first valve 111, and to release the valve plate 12 when the second valve 112 moves away from the first valve 111.

[0056] The valve housing 11 further includes a third valve element 113 and a telescopic valve element 114. The third valve element 113 is fixedly disposed and located on opposite sides of the second valve element 112, opposite to the first valve element 111. Specifically, when the bottom-mounted slide gate valve is in operation, the first valve element 111 and the third valve element 113 are respectively connected to an externally fixed first pipe and a second pipe, thereby isolating / connecting the external first pipe and the second pipe. The telescopic valve element 114 is connected to both the third valve element 113 and the second valve element 112, and extends or retracts when the second valve element 112 moves to compensate for the displacement of the second valve element 112, so that the third valve element 113 remains stationary when the second valve element 112 moves. Specifically, the telescopic valve element 114 can be implemented as a corrugated telescopic tube to extend or retract accordingly when the second valve element 112 moves.

[0057] Optionally, see Figure 1 and Figure 2 The bottom-mounted slide gate valve also includes a support frame 15. The support frame 15 is fixed to the lower part of the valve housing 11, specifically, the support frame 15 is fixed to the first valve member 111 and the third valve member 113 respectively. Furthermore, a reinforcing member 16 extends from the side of the support frame 15 and is fixed below the sliding guide 13. Therefore, the sliding guide 13 is relatively stable and not easily moved.

[0058] Optionally, the reinforcing member 16 includes a first reinforcing bracket 161 and a second reinforcing bracket 162. The first reinforcing bracket 161 and the second reinforcing bracket 162 are respectively fixed to the first guide portion 131 and the second guide portion 132.

[0059] Figure 6 This is a side view of another portion of the bottom-mounted slide gate valve according to an embodiment of this disclosure, cut open. (See also...) Figure 1 and Figure 6 The bottom-mounted slide gate valve further includes a clamping drive mechanism 17. The clamping drive mechanism 17 is used to drive the first valve member 111 and / or the second valve member 112 to move to clamp / release. The clamping drive mechanism 17 includes a plurality of clamping rotation shafts, a clamping drive member 174, and a rotation drive assembly.

[0060] The plurality of clamping rotary shafts are threadedly engaged one-to-one with the plurality of threaded points 1121 in the second valve member 112 and / or the first valve member 111, so as to drive the second valve member 112 and the first valve member 111 to move closer to / away from each other during rotation. The clamping drive member 174 is connected to one of the clamping rotary shafts to drive the one clamping rotary shaft to rotate. The rotation drive assembly is connected to the plurality of clamping rotary shafts to drive the other clamping rotary shafts to rotate when one of the clamping rotary shafts rotates.

[0061] Optionally, the rotation drive assembly includes a plurality of clamping rotating members and a clamping rotating ring. The plurality of clamping rotating members are fixed one-to-one with the plurality of clamping rotating shafts. The clamping rotating ring engages with the plurality of clamping rotating members, so that when one of the clamping rotating members is rotated by the clamping rotating shaft, it drives the other clamping rotating members to rotate, thereby driving the other clamping rotating shafts to rotate.

[0062] It is understood that multiple clamping rotating shafts and multiple clamping rotating components refer to two or more clamping rotating shafts and clamping rotating components, but the number of clamping rotating shafts and clamping rotating components is not specifically limited and can be adjusted adaptively.

[0063] For example, see Figure 1 and Figure 6 When the first valve component 111 is fixedly installed and the second valve component 112 is movable towards / away from the first valve component 111, the plurality of clamping rotating shafts include a first clamping rotating shaft 171a, a second clamping rotating shaft 171b, a third clamping rotating shaft 171c, and a fourth clamping rotating shaft 171d. The first clamping rotating shaft 171a, the second clamping rotating shaft 171b, the third clamping rotating shaft 171c, and the fourth clamping rotating shaft 171d are correspondingly threaded into the four threaded points 1121 of the second valve component 112. Therefore, when the plurality of clamping rotating shafts rotate, the second valve component 112 tends to rotate along the axial direction of the clamping rotating shafts. Since there are multiple clamping rotating shafts, the rotation of the second valve component 112 is restricted, thus allowing the second valve component 112 to move only along the axial direction of the plurality of clamping rotating shafts, thereby moving towards / away from the first valve component 111. Furthermore, the first clamping rotating shaft 171a is connected to the clamping driving member 174 and is driven to rotate by the clamping driving member 174.

[0064] The plurality of clamping rotating components include a first clamping rotating component 172a, a second clamping rotating component 172b, a third clamping rotating component 172c, and a fourth clamping rotating component 172d. The first clamping rotating component 172a, the second clamping rotating component 172b, the third clamping rotating component 172c, and the fourth clamping rotating component 172d are fixed to the first clamping rotating shaft 171a, the second clamping rotating shaft 171b, the third clamping rotating shaft 171c, and the fourth clamping rotating shaft 171d in a one-to-one correspondence.

[0065] Therefore, when the first clamping rotating shaft 171a is driven to rotate, the first clamping rotating shaft 171a drives the first clamping rotating member 172a to rotate, the first clamping rotating member 172a rotates, the clamping rotating ring 173 rotates, and the clamping rotating ring 173 rotates, causing the second clamping rotating member 172b, the third clamping rotating member 172c, and the fourth clamping rotating member 172d to rotate accordingly, thereby driving the second clamping rotating shaft 171b, the third clamping rotating shaft 171c, and the fourth clamping rotating shaft 171d to rotate accordingly, so that all of the clamping rotating shafts are driven to rotate.

[0066] Specifically, each of the multiple clamping rotating components is implemented as a sprocket, and the clamping rotating ring 173 is implemented as a chain ring sleeved on the outside of the multiple sprockets and meshing with each of the multiple sprockets. The clamping driving component 174 is implemented as a clamping driving motor. When the clamping driving motor drives one of the clamping rotating shafts to rotate, the sprocket connected to the clamping rotating shaft is driven to rotate, thereby driving the chain ring to rotate, which in turn causes the other sprockets to rotate by the chain ring, and then the rotation of the other sprockets drives the other clamping rotating shafts to rotate. Thus, all of the multiple clamping rotating shafts are driven to rotate.

[0067] Optionally, see Figure 1 and Figure 2 The lower-mounted slide gate valve further includes a slide drive mechanism 18. The slide drive mechanism 18 includes a slide drive assembly 181 and a slide transmission assembly 182. The slide transmission assembly 182 is connected to the slide drive assembly 181 and the valve plate 12, respectively, and is used to convert the rotational motion of the slide drive assembly 181 into a sliding motion that drives the valve plate 12 to slide. Thus, the valve plate 12 can be driven to slide.

[0068] Optionally, the board drive assembly 181 includes a board drive motor 1811 and a board rotation shaft 1812. The board drive motor 1811 is connected to the board rotation shaft 1812 and is used to drive the board rotation shaft 1812 to rotate.

[0069] Optionally, the plate drive assembly 182 includes a plate rotating member 1821 and a plate moving member 1822. The plate rotating member 1821 is rotatably connected to the plate drive assembly 181. The plate moving member 1822 is fixed to the valve plate 12 and engages with the plate rotating member 1821, so that the valve plate 12 moves as the plate rotating member 1821 rotates. Therefore, when the plate rotating member 1821 is driven to rotate, its rotation drives the plate moving member 1822 to move, thereby causing the valve plate 12 to slide accordingly.

[0070] Specifically, the plate rotating member 1821 is fixedly connected to the plate rotating shaft 1812, so as to rotate with the plate rotating shaft 1812. The plate rotating member 1821 can be implemented as a sprocket, and the plate moving member 1822 can be implemented as a chain meshing with the sprocket, so that when the sprocket rotates, it drives the chain to move, thereby causing the chain to slide the valve plate 12. Alternatively, the plate rotating member 1821 can be implemented as a gear, and the plate moving member 1822 can be implemented as a rack meshing with the gear, so that when the gear rotates, it drives the rack to move, thereby causing the rack to slide the valve plate 12.

[0071] The above embodiments are merely illustrative of the principles and effects of this disclosure and are not intended to limit this disclosure. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this disclosure. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this disclosure should still be covered by the protection scope of this disclosure.

Claims

1. A bottom-mounted slide gate valve, characterized in that, include: The valve body forms the valve cavity; A valve plate is disposed on the valve housing and can slide laterally into and out of the valve cavity to isolate / connect the valve cavity; as well as A sliding guide is slidably engaged with the lower end of the valve plate to guide the sliding direction of the valve plate; The sliding guide includes a first guide portion and a second guide portion extending to opposite sides of the valve housing, respectively; the valve plate is provided with transversely arranged blind holes and through holes, and when the valve plate slides to the first guide portion, one of the blind holes and the through holes is located in the valve cavity to achieve one of the conduction and isolation of the valve cavity; when the valve plate slides to the second guide portion, the other of the blind holes and the through holes is located in the valve cavity to achieve the other of the conduction and isolation of the valve cavity.

2. The bottom-mounted slide gate valve according to claim 1, characterized in that, One of the sliding guide and the valve plate is provided with a rolling element for rolling contact with the other.

3. The bottom-mounted slide gate valve according to claim 2, characterized in that, The rolling element and / or the sliding guide are provided with at least one limiting portion for limiting the longitudinal jitter of the valve plate.

4. The bottom-mounted slide gate valve according to claim 1, characterized in that, Also includes: A support frame is fixed to the lower part of the valve housing, and a reinforcing member extends from the side and is fixed to the lower part of the sliding guide.

5. The bottom-mounted slide gate valve according to claim 1, characterized in that, Also includes: The board-moving drive mechanism includes: The board drive assembly provides rotary motion for driving; as well as The plate drive assembly is connected to the plate drive assembly and the valve plate, respectively, and is used to convert the rotational motion provided by the plate drive assembly into the sliding motion that drives the valve plate to slide.

6. The slide gate valve according to claim 5, characterized in that, The conveyor belt assembly includes: A rotatable board feeder is rotatably connected to the board feeder drive assembly; and A sliding plate moving component is fixed to the valve plate and meshes with the sliding plate rotating component, so as to move with the rotation of the sliding plate rotating component to drive the valve plate to move.

7. The bottom-flow slide gate valve according to claim 1, characterized in that, The valve housing includes: a first valve member and a second valve member that are movable toward / away from the valve plate to clamp / release the valve plate; The down-mounted slide gate valve further includes a clamping drive mechanism for driving the first valve and the second valve to move closer or further apart.

8. The bottom-mounted slide gate valve according to claim 7, characterized in that, The clamping drive mechanism includes: Multiple clamping rotating shafts are threaded into multiple threaded points in the second valve and / or the first valve to drive the second valve and the first valve to move closer to / away from each other during rotation; A clamping drive member is connected to one of the clamping rotary shafts to drive one of the clamping rotary shafts to rotate; and A rotation drive assembly is connected to a plurality of said clamping rotation shafts to drive the other said clamping rotation shafts to rotate when one of said clamping rotation shafts rotates.

9. The bottom-mounted slide gate valve according to claim 8, characterized in that, The rotation drive component includes: Multiple clamping rotating components are fixed to multiple clamping rotating shafts in a corresponding manner; and A clamping rotating ring engages with a plurality of clamping rotating members so that when one of the clamping rotating members is rotated by the clamping rotating shaft, it drives the other clamping rotating members to rotate, thereby driving the other clamping rotating shafts to rotate.

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