Gate valve structure

Abstract

The utility model relates to a gate valve structure in the technical field of valves, which comprises a frame and a gate, an inner cavity of the frame is provided with a partition plate for dividing the inner cavity into a valve cavity and a transmission cavity, and the gate movably penetrates through the partition plate in a sealing manner along the length direction of the frame; the two inner side walls of the valve cavity are each provided with a plurality of supporting wheel sets capable of being rolled on the gate plate material removing side plate face at intervals in the length direction of the valve cavity, and the ends, close to the valve cavity, of the two inner side walls of the transmission cavity are each provided with a supporting wheel set capable of being rolled on the gate plate material removing side plate face. Due to the position of the supporting wheel set, sliding friction is changed into rolling friction during movement of the flashboard, so that the flashboard moves more smoothly.

Description

Technical Field

[0001] The utility model relates to the technical field of valves, in particular to a gate valve structure. Background Art

[0002] A valve is a device used to control the direction, pressure, and flow of a fluid in a fluid system. It is a device that allows the medium (liquid, gas, powder) in pipes and equipment to flow or stop and control its flow. The opening and closing part of the gate valve is the gate, which is opened and closed by lifting or lowering the gate.

[0003] At present, gate valves have been widely used in petroleum, chemical, pharmaceutical, electric power and other industries. During use, the gate slides back and forth along the slide grooves on both sides, which may cause poor movement, especially when the side of the gate is deformed, or even stuck.

[0004] For this purpose, we designed a gate valve structure. Utility Model Content

[0005] In order to overcome the deficiencies in the background technology, the utility model discloses a gate valve structure.

[0006] In order to achieve the above-mentioned invention object, the utility model adopts the following technical solutions:

[0007] A gate valve structure, comprising a frame and a gate, wherein the inner cavity of the frame has a partition plate which divides it into a valve cavity and a transmission cavity, and the gate plate is sealed and movable through the partition plate along the length direction of the frame; a plurality of supporting wheel groups capable of rolling on the material removal side plate surface of the gate plate are arranged at intervals along the length direction of the two inner side walls of the valve cavity, and a supporting wheel group capable of rolling on the material removal side plate surface of the gate plate is also arranged on one end of the two inner side walls of the transmission cavity close to the valve cavity;

[0008] The transmission cavity is rotatably connected with a transmission screw along its length direction, and the outer end of the transmission screw extends out of the transmission cavity and is provided with a driving member. The transmission screw rod body is transmission-matched with a nut, and one side of the nut is fixedly connected to an end of the gate plate close to the driving member.

[0009] Preferably, the inner side wall of the valve cavity is provided with an inclined guide plate on the side where the gate plate feeds, and the small end of the conical cavity surrounded by the inclined guide plate is close to the gate plate.

[0010] Preferably, a plurality of support plates are evenly arranged between the inclined guide plate and the inner wall of the valve cavity.

[0011] Preferably, the partition plate corresponds to the plate surface of the transmission cavity, and sealing components are provided at positions on both sides of the gate plate, and the sealing components are sealingly and slidingly matched with the corresponding gate plate surface.

[0012] Preferably, the sealing assembly comprises a sealing strip, a pressing plate is provided on the side of the sealing strip facing away from the partition plate and the gate plate, and the pressing plate, the sealing strip and the partition plate are connected by bolts.

[0013] Preferably, cover plates are provided on both openings on both sides of the transmission cavity.

[0014] Preferably, the support wheel assembly comprises a bolt and nut assembly penetrating the side wall of the valve cavity, the screw of the bolt and nut assembly is matched with a first bearing, and the screw of the bolt and nut assembly is sleeved with a first gasket at positions on both sides of the first bearing, the outer diameter of the first gasket is smaller than the inner diameter of the outer ring of the first bearing, and fits with the end surface of the inner ring of the first bearing;

[0015] Wherein, the first bearing can roll correspondingly on the gate plate.

[0016] Preferably, the outer ring of the first bearing is matched with a V-shaped plate, and the tip of the V-shaped plate is connected to the first bearing, both ends of the open end of the V-shaped plate are provided with mounting bolts, and the mounting bolt screw is matched with a second bearing, and the mounting bolt screw is set at the positions on both sides of the second bearing with a second gasket, the outer diameter of the second gasket is smaller than the inner diameter of the outer ring of the second bearing, and fits with the end surface of the inner ring of the second bearing;

[0017] Wherein, the second bearing can roll correspondingly on the gate plate.

[0018] Preferably, both inner side walls of the valve cavity are provided with a plurality of support wheel groups capable of rolling on the incoming side plate surface of the gate plate at intervals along the length direction, and both inner side walls of the transmission cavity are also provided with support wheel groups capable of rolling on the incoming side plate surface of the gate plate at one end close to the valve cavity.

[0019] Preferably, the frame includes two side channel steels with openings facing outwards, an end channel steel with openings facing outwards is provided between the ends of the two side channel steels corresponding to the valve cavity, and an end channel steel with openings facing inwards is provided between the ends of the two side channel steels corresponding to the transmission cavity;

[0020] The partition plate is a channel steel with an opening facing the transmission cavity.

[0021] Due to the adoption of the above-mentioned technical solution, the utility model has the following beneficial effects:

[0022] 1. Due to the position of the supporting wheel group, the movement of the gate plate has sliding friction, which is changed into rolling friction, making the gate plate move more smoothly;

[0023] 2. The arrangement of the V-shaped plate, mounting bolts and second bearing in the supporting wheel assembly. When the side of the gate plate is deformed in the direction of material removal, the second bearing corresponding to the deformed position of the gate plate can move toward the side of material removal under the action of the rotation of the V-shaped plate, ensuring that the deformed position of the gate plate passes the second bearing to prevent the gate plate from getting stuck. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of the utility model;

[0025] Figure 2 for Figure 1 A cross-sectional view of

[0026] Figure 3 for Figure 1 Another cross-sectional view of;

[0027] Figure 4 for Figure 2 A local enlarged view of I in FIG.

[0028] Figure 5 for Figure 3 Partial enlarged view of II in the figure;

[0029] Figure 6 It is a schematic diagram of another structure of the utility model;

[0030] Figure 7 for Figure 6 A cross-sectional view of

[0031] Figure 8 It is a partial schematic diagram of another supporting wheel set in the utility model;

[0032] Fig. 9 for Figure 8 sectional view of .

[0033] In the figure: 1. frame; 11. partition plate; 12. side channel steel; 13. end channel steel; 2. gate plate; 3. support wheel assembly; 31. bolt and nut assembly; 32. first bearing; 33. first gasket; 34. V-shaped plate; 35. mounting bolt; 36. second bearing; 37. second gasket; 4. transmission screw; 41. nut; 5. driving member; 6. inclined guide plate; 7. support plate; 8. sealing assembly; 81. sealing strip; 82. pressing plate; 9. cover plate. DETAILED DESCRIPTION

[0034] The present invention can be explained in detail through the following embodiments. The purpose of disclosing the present invention is to protect all technical improvements within the scope of the present invention. In the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "front", "back", "left", "right", etc. to indicate directions or positional relationships, they only correspond to the drawings of the present application, in order to facilitate the description of the present invention; it should be understood that if there are terms such as "end", "side", "end part", "lateral", "lateral", "transverse", "longitudinal", etc. to indicate directions or positional relationships, they only correspond to the length and width of the corresponding parts, that is, "end part" indicates the head and tail areas in the length direction of the corresponding part, and "side part" indicates the head and tail areas in the width direction of the corresponding part; this is for the convenience of describing the present invention, rather than indicating or implying that the device or element referred to must have a specific direction.

[0035] Embodiment 1, in combination with the attached Figure 1-5 A gate valve structure includes a frame 1 and a gate 2. The inner cavity of the frame 1 has a partition plate 11 that divides it into a valve cavity and a transmission cavity. The gate 2 seals and moves through the partition plate 11 along the length direction of the frame 1; as needed, the frame 1 includes two side channel steels 12 with openings facing outwards, an end channel steel 13 with openings facing outwards is provided between the ends of the two side channel steels 12 corresponding to the valve cavity, and an end channel steel 13 with openings facing inwards is provided between the ends of the two side channel steels 12 corresponding to the transmission cavity; the partition plate 11 is a channel steel with an opening toward the transmission cavity; this can not only increase the strength of the frame 1, but also facilitate the connection of the corresponding pipes at both ends of the valve cavity. As needed, the contact positions of the side channel steel 12, the end channel steel 13 and the partition plate 11 are connected by welding to ensure the sealing of the connection.

[0036] A plurality of support wheel groups 3 capable of rolling on the material removal side plate surface of the gate plate 2 are provided at intervals along the length direction of the two inner side walls of the valve cavity, and a support wheel group 3 capable of rolling on the material removal side plate surface of the gate plate 2 is also provided at one end of the two inner side walls of the transmission cavity close to the valve cavity;

[0037] The transmission cavity is rotatably connected with a transmission screw 4 along its length direction, and the outer end of the transmission screw 4 extends out of the transmission cavity and is provided with a driving member 5. The transmission screw 4 is matched with a nut 41 for transmission, and one side of the nut 41 is fixedly connected to an end of the gate plate 2 close to the driving member 5.

[0038] As required, the driving member 5 can be a rotating handle or a motor; it can be specifically configured as required.

[0039] Such an arrangement can drive the transmission screw 4 to rotate through the driving member 5, and the transmission screw 4 drives the nut 41 to move axially along the transmission screw 4, thereby driving the gate 2 to move, thereby realizing the functions of opening, closing and adjusting the opening size; wherein, due to the position of the supporting wheel group 3, the movement of the gate 2 has sliding friction, which is converted into rolling friction, making the movement of the gate 2 smoother.

[0040] As needed, the support wheel group 3 includes a bolt and nut group 31 that passes through the side wall of the valve cavity, and the bolt and nut group 31 is matched with a screw sleeve with a first bearing 32; that is, the screw of the bolt passes through the inner ring of the first bearing 32, the side channel steel 12 and the nut in sequence to fix the position of the first bearing 32; wherein the first bearing 32 is located in the valve cavity.

[0041] Furthermore, in order to prevent sliding friction between the outer ring of the first bearing 32 and the inner end face of the bolt head and the inner wall of the valve chamber, the bolt and nut group 31 is provided with a first gasket 33 on both sides of the screw of the first bearing 32. The outer diameter of the first gasket 33 is smaller than the inner diameter of the outer ring of the first bearing 32 and fits with the inner ring end face of the first bearing 32.

[0042] Furthermore, in order to prevent impurities from invading the shaft of the transmission screw 4 and affecting the transmission coordination between the transmission screw 4 and the nut 41, cover plates 9 are provided on both sides of the opening of the transmission cavity; as needed, sealing gaskets are provided between the cover plates 9 and the corresponding end faces of the open ends of the transmission cavity to ensure the sealing between the cover plates 9 and the corresponding end faces of the open ends of the transmission cavity.

[0043] Embodiment 2, combined with the attached Figure 8-9 A gate valve structure, based on the first embodiment, in order to prevent the side of the gate 2 from deforming, so that the position of the gate 2 deforming cannot pass the first bearing 32, and the gate 2 is stuck, the outer ring of the first bearing 32 is matched with a V-shaped plate 34, and the tip of the V-shaped plate 34 is connected to the first bearing 32, and the two ends of the open end of the V-shaped plate 34 are provided with mounting bolts 35, and the mounting bolts 35 screw rods are matched with second bearings 36, and the positions of the mounting bolts 35 screw rods on both sides of the second bearing 36 are both sleeved with second gaskets 37, the outer diameter of the second gasket 37 is smaller than the inner diameter of the outer ring of the second bearing 36, and the inner ring end surface of the second bearing 36 is fitted; wherein the second bearing 36 can be rolled on the gate 2. That is, when the side of the gate 2 is deformed in the direction of material removal, the second bearing 36 corresponding to the deformed position of the gate 2 can be avoided to the side of the material removal under the action of the rotation of the V-shaped plate 34, so as to ensure that the deformed position of the gate 2 passes the second bearing 36.

[0044] Embodiment 3, in combination with the attached Figure 1-3 A gate valve structure, based on the first or second embodiment, an inner side wall of the valve cavity is provided with an inclined guide plate 6 on the side of the gate plate 2, and the small end of the conical cavity surrounded by the inclined guide plate 6 is close to the gate plate 2; that is, the inclined guide plate 6 can prevent the fluid from impacting the position where the gate plate 2 and the side wall of the valve cavity are connected, and can also prevent the fluid from directly impacting the supporting wheel group 3 when in the open state;

[0045] As required, a plurality of support plates 7 are evenly arranged between the inclined guide plate 6 and the inner wall of the valve cavity; that is, the inclined guide plate 6 can be supported by the support plates 7 to increase the strength of the inclined guide plate 6 .

[0046] Embodiment 4, in combination with the attached Figure 2 , 4 A gate valve structure is provided. Based on the first embodiment, a partition plate 11 corresponds to the plate surface of the transmission cavity, and sealing components 8 are provided at positions on both sides of the gate plate 2, and the sealing components 8 are sealingly slidably matched with the corresponding gate plate surface 2.

[0047] Furthermore, the sealing assembly 8 includes a sealing strip 81, and a pressing plate 82 is provided on the side of the sealing strip 81 away from the partition plate 11 and the gate plate 2, and the pressing plate 82, the sealing strip 81 and the partition plate 11 are connected by bolts; as needed, the sealing strip 81 can be made of rubber, asbestos or silicon sponge material.

[0048] In this embodiment, the gate plate 2 can be connected with the partition plate 11 in a clearance fit manner, and the sealing fit between the gate plate 2 and the partition plate 11 can also be achieved through the sealing assembly 8. In this case, the gate plate 2 can still be used even if it is slightly deformed, and when the fluid is granular or solid material, it can still prevent leakage when the valve cavity is closed, thereby increasing the service life.

[0049] Embodiment 5, in combination with the attached Figure 6-7 A gate valve structure, based on any one of embodiments 1 to 4, a plurality of supporting wheel groups 3 capable of rolling on the incoming side plate surface of the gate 2 are arranged at intervals on both inner side walls of the valve cavity along its length direction, and a supporting wheel group 3 capable of rolling on the incoming side plate surface of the gate 2 is also arranged on one end of both inner side walls of the transmission cavity close to the valve cavity.

[0050] It should be noted that: when this embodiment is implemented on the basis of embodiment four, the support wheel group 3 located on the incoming side of the gate plate 2 in the valve cavity corresponds to the position between the inclined guide plate 6 and the inner wall of the valve cavity, that is, located on the outside of the conical cavity surrounded by the inclined guide plate 6; this can prevent the fluid from directly impacting the support wheel group 3; as needed, the size of the support wheel group 3 located on the incoming side of the gate plate 2 can be appropriately reduced due to the limitation of the space between the inclined guide plate 6 and the inner wall of the valve cavity.

[0051] The parts of the present invention that are not described in detail are prior art. It is obvious to those skilled in the art that the present invention is not limited to the details of the above-mentioned exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and it is intended that all changes that fall within the meaning and scope of equivalent elements are included in the present invention.

Claims

1. A gate valve structure, characterized in that: It comprises a frame (1) and a gate plate (2), wherein the inner cavity of the frame (1) has a partition plate (11) which divides it into a valve cavity and a transmission cavity, and the gate plate (2) penetrates the partition plate (11) in a sealed manner along the length direction of the frame (1); a plurality of support wheel groups (3) capable of rolling on the material removal side plate surface of the gate plate (2) are provided at intervals along the length direction on both inner side walls of the valve cavity, and a support wheel group (3) capable of rolling on the material removal side plate surface of the gate plate (2) is also provided on one end of both inner side walls of the transmission cavity close to the valve cavity; The transmission cavity is rotatably connected to a transmission screw (4) along its length direction, and the outer end of the transmission screw (4) extends out of the transmission cavity and is provided with a driving member (5). The shaft of the transmission screw (4) is transmission-matched with a nut (41), and one side of the nut (41) is fixedly connected to an end of the gate plate (2) close to the driving member (5) in correspondence.

2. A gate valve structure according to claim 1, characterized in that: The inner side wall of the valve cavity is provided with an inclined guide plate (6) on the side of the gate plate (2) where materials come in, and the small end of the conical cavity surrounded by the inclined guide plate (6) is close to the gate plate (2).

3. A gate valve structure according to claim 2, characterized in that: A plurality of support plates (7) are evenly arranged between the inclined guide plate (6) and the inner wall of the valve cavity.

4. A gate valve structure according to claim 1, characterized in that: The partition plate (11) corresponds to the plate surface of the transmission cavity and is provided with sealing components (8) at positions on both sides of the gate plate (2), and the sealing components (8) are in sealing and sliding cooperation with the corresponding plate surface of the gate plate (2).

5. A gate valve structure according to claim 4, characterized in that: The sealing assembly (8) comprises a sealing strip (81), a pressing plate (82) being provided on a side of the sealing strip (81) facing away from the partition plate (11) and the gate plate (2), and the pressing plate (82), the sealing strip (81) and the partition plate (11) are connected by bolts.

6. A gate valve structure according to claim 1, characterized in that: Cover plates (9) are provided on both openings of the transmission chamber.

7. A gate valve structure according to claim 1, characterized in that: The support wheel assembly (3) comprises a bolt and nut assembly (31) penetrating the side wall of the valve cavity, the screw of the bolt and nut assembly (31) being matched with a first bearing (32), and first gaskets (33) being sleeved at positions on both sides of the screw of the bolt and nut assembly (31) located on the first bearing (32), the outer diameter of the first gasket (33) being smaller than the inner diameter of the outer ring of the first bearing (32), and being in contact with the end surface of the inner ring of the first bearing (32); Wherein, the first bearing (32) can be rolled correspondingly to the gate plate (2).

8. A gate valve structure according to claim 7, characterized in that: The outer ring of the first bearing (32) is matched with a V-shaped plate (34), and the tip of the V-shaped plate (34) is connected to the first bearing (32) correspondingly, both ends of the open end of the V-shaped plate (34) are provided with mounting bolts (35), and the mounting bolt (35) screw rod is matched with a second bearing (36), and the mounting bolt (35) screw rod is located on both sides of the second bearing (36) and is sleeved with a second gasket (37), the outer diameter of the second gasket (37) is smaller than the inner diameter of the outer ring of the second bearing (36), and is in contact with the inner ring end surface of the second bearing (36); Wherein, the second bearing (36) can be rolled correspondingly to the gate plate (2).

9. A gate valve structure according to any one of claims 1, 7 or 8, characterized in that: The inner side walls of the valve cavity are provided with a plurality of support wheel assemblies (3) capable of rolling on the material-incoming side plate surface of the gate plate (2) at intervals along the length direction thereof, and the inner side walls of the transmission cavity are also provided with support wheel assemblies (3) capable of rolling on the material-incoming side plate surface of the gate plate (2) at one end thereof close to the valve cavity.

10. A gate valve structure according to claim 1, characterized in that: The frame (1) comprises two side channel steels (12) with openings facing outwards, an end channel steel (13) with openings facing outwards is provided between the ends of the two side channel steels (12) corresponding to the valve cavity, and an end channel steel (13) with openings facing inwards is provided between the ends of the two side channel steels (12) corresponding to the transmission cavity; The partition plate (11) is a channel steel with an opening facing the transmission cavity.

Images