Flashboard structure

Abstract

The utility model relates to the technical field of wedge type gate valves, and discloses a gate plate structure which is characterized in that a connecting sleeve is fixedly mounted at the top of a gate plate, a mounting groove is formed in the side face of the bottom of the gate plate, a sealing strip is clamped in the mounting groove, a bent belt is fixedly mounted on the side wall of the gate plate, and the bent belt is connected with the connecting sleeve. A bottom edge is fixedly installed at the bottom of the gate plate, and a flow dividing mechanism is arranged on the lower surface of the bottom edge. The flow guide structure is matched with the multiple sets of large arc grooves and the protruding edges which are arranged in a wave shape, so that a transportation medium flowing through the flow guide structure can be influenced by the appearance of the flow guide structure to generate different flowing states, and influences on the service life of the flashboard are avoided; transportation media flowing at the bottom of the gate plate influence each other in the horizontal direction, so that impact force of the transportation media on the gate plate in the vertical direction and the transverse direction is reduced, and the service life of the gate plate and the wedge gate valve is guaranteed.

Description

Technical Field

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

[0002] Gate valves have many characteristics such as high sealing, high reliability, high applicability, high temperature, high pressure, wide medium range, and two-way force. During the use of wedge-type gate valves, the interaction with the thermal expansion and contraction of the material can easily cause the gate to be wedged or stuck due to temperature changes. In order to ensure the stable use of wedge-type gate valves, the most important component is the gate.

[0003] According to a publicly disclosed gate plate structure for a wedge-type gate valve (publication number: CN215522027U), in the above application, through the arrangement of the valve plate, valve column and bearing, the external valve stem is fixed to the corresponding inner shaft of the bearing, and the downward rotation of the valve stem can drive the inner shaft of the bearing to rotate, so that the bearing pushes the valve plate to descend, which is convenient for connection with the external structure, has strong adaptability, and is convenient for cooperating with the valve stem to move up and down.

[0004] However, in actual use of the above-mentioned equipment, when the gate of the wedge gate valve is opened or closed, the flow speed of the transport medium near the bottom of the gate is very fast, which can easily cause a relatively large extrusion on the bottom surface of the gate or generate a certain lateral stress, and then easily lead to deflection deformation between the gate and the moving groove of the valve body, thereby affecting the subsequent safe use of the gate, thereby adversely affecting the service life of the wedge gate valve; in view of this, we propose a gate structure. Utility Model Content

[0005] The purpose of the utility model is to provide a gate structure to solve the problems raised in the above background technology.

[0006] To achieve the above object, the utility model provides the following technical solutions: a gate structure, comprising a gate, a connecting sleeve is fixedly installed on the top of the gate, a mounting groove is provided on the bottom side of the gate, a sealing strip is clamped inside the mounting groove, a bending belt is fixedly installed on the side wall of the gate, a bottom edge is fixedly installed on the bottom of the gate, a diversion mechanism is provided on the lower surface of the bottom edge, and the diversion mechanism comprises:

[0007] Large arc grooves, the lower surface of the bottom edge is provided with large arc grooves, the number of the large arc grooves is set in multiple groups, and the multiple groups of large arc grooves are evenly distributed on the lower surface of the bottom edge in a linear array, and a convex ridge is provided between two adjacent large arc grooves;

[0008] A return flow groove is provided on the top inner surface of the large arc groove, a triangular bevel groove is provided on the lower surface of the convex edge, and an arc-shaped edge is provided at the edge of one end of the triangular bevel groove near the bottom side wall.

[0009] Preferably, the end cross-section of the gate plate is set to be a trapezoidal shape that is wide at the top and narrow at the bottom, so as to adapt to the use requirements of the wedge gate valve and can better adapt to the space sealing requirements within the wedge gate valve. Both sides of the gate plate are set to be inclined, so as to effectively reduce the impact force of the transport medium on the left and right sides of the gate plate.

[0010] Preferably, the sealing strip is arranged close to the upper surface of the bottom edge, and the bottom of the wedge-type gate valve is provided with an embedded groove adapted to the size of the bottom edge, so that when the gate plate is closed, it can match the embedded groove to close and block the wedge-type gate valve.

[0011] Preferably, the large arc groove is arranged at the edge of one side of the bottom edge close to the inclined surface of the gate plate, so that when the transport medium flows along the side of the gate plate, when it moves to the bottom edge of the gate plate, it can flow along the large arc groove under the action of pressure, and the number of the convex ridges is arranged in several groups, and the number of groups of convex ridges corresponds to the number of large arc grooves, and the convex ridges are arranged at the center of two adjacent groups of large arc grooves.

[0012] Preferably, the triangular bevel groove is in a triangular shape that is narrow at the top and wide at the bottom and is arranged at the central axis of the convex ridge, and the bottom end of the triangular bevel groove is kept flush with the lower surface of the bottom edge.

[0013] Preferably, the return flow groove is arranged at the top center of the large arc groove, and the bottom end of the curved surface of the return flow groove close to the bottom edge center side faces the bottom edge side, so that the return flow groove forms a reverse direction flow channel on the top inner surface of the large arc groove.

[0014] Compared with the prior art, the utility model provides a gate structure with the following beneficial effects:

[0015] 1. The gate structure is provided with a bottom edge at the bottom of the gate and a diversion mechanism at the bottom edge of the bottom edge, and multiple groups of large arc grooves and convex edges arranged in a wave shape, so that the transport medium flowing through the drainage structure will be affected by its shape and produce different flow states, and due to its wavy shape, the impact force of the transport medium on the gate when it flows rapidly is reduced, thereby avoiding affecting the service life of the gate, and with the setting of the triangular inclined groove opened at the bottom of the convex edge, the transport medium flowing at the bottom of the gate has mutual influence in the horizontal direction, thereby reducing the impact force on the gate in the vertical and horizontal directions, so as to ensure the service life of the gate and the wedge gate valve.

[0016] 2. The gate structure has a return groove on the top inner surface of the large arc groove, which cooperates with the reverse flow channel set inside, so that the transport medium will have a small impact on the side area below, and cooperate with the flow of the transport medium itself to impact and clean the inside of the embedded groove opened at the bottom of the wedge gate valve, so as to ensure the cleanliness of the internal space of the wedge gate valve, avoid the accumulation of dirt inside the wedge gate valve, affect the transmission purity of the transport medium, and improve the use effect of the wedge gate valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0018] Figure 2 This is a bottom view of the structure of the utility model;

[0019] Figure 3 For this utility model Figure 3 A schematic diagram of the local enlarged structure of the middle A area;

[0020] Figure 4 It is a schematic diagram of a partial explosion of the gate plate of the utility model.

[0021] In the figure: 1. gate; 2. connecting sleeve; 3. sealing strip; 4. bending belt; 5. bottom edge; 6. large arc groove; 7. convex ridge; 8. return flow groove; 9. triangular inclined groove; 10. arc edge. DETAILED DESCRIPTION

[0022] like Figure 1-Figure 4 As shown, the utility model provides a technical solution: a gate structure, including a gate 1, a connecting sleeve 2 is fixedly installed on the top of the gate 1, a mounting groove is opened on the bottom side of the gate 1, a sealing strip 3 is clamped inside the mounting groove, a bending belt 4 is fixedly installed on the side wall of the gate 1, a bottom edge 5 is fixedly installed on the bottom of the gate 1, and a diversion mechanism is arranged on the lower surface of the bottom edge 5, and the diversion mechanism includes a large arc groove 6, a convex ridge 7, a return flow groove 8, a triangular inclined groove 9 and an arc edge 10.

[0023] In an embodiment of the utility model, a large arc groove 6 is provided on the lower surface of the bottom edge 5, and the number of the large arc grooves 6 is arranged in multiple groups, and the multiple groups of large arc grooves 6 are evenly distributed on the lower surface of the bottom edge 5 in a linear array, and a convex ridge 7 is provided between two adjacent large arc grooves 6, and a reflux groove 8 is provided on the top inner surface of the large arc groove 6, and a triangular oblique groove 9 is provided on the lower surface of the convex ridge 7, and an arc-shaped edge 10 is provided at the edge of one end of the side wall of the bottom edge 5.

[0024] In one embodiment of the utility model, the end cross-section of the gate plate 1 is set to be a trapezoidal shape with a wide top and a narrow bottom, so as to adapt to the use requirements of the wedge gate valve and can better adapt to the space sealing requirements in the wedge gate valve. Specifically, both sides of the gate plate 1 are set to be inclined, so as to effectively reduce the impact force of the transport medium on the left and right sides of the gate plate 1. In addition, the interior of the connecting sleeve 2 is set to be hollow so as to be installed with the external connecting structure, so as to facilitate the staff to control the connecting sleeve 2 through the connecting piece or switch on the outside of the wedge gate valve, thereby controlling the opening and closing of the gate plate 1. At the same time, the sealing strip 3 is set close to the upper surface of the bottom edge 5, and the bottom of the wedge gate valve is provided with an embedded groove matched with the size of the bottom edge 5, so as to facilitate the gate plate 1 to be closed when it can be closed. The wedge-type gate valve is sealed and blocked by matching with the embedded groove, and a better sealing effect can be achieved in cooperation with the sealing strip 3. Furthermore, the bending band 4 is arranged on the inclined surface arranged on the side of the gate plate 1, and the number of the bending bands 4 is arranged in two groups, and the two groups of bending bands 4 are arranged in a mirror image. At the same time, each group of bending bands 4 contains two single bending bands 4 arranged symmetrically to each other, thereby forming two groups of curved protruding bands on the inclined surface of the side of the gate plate 1, and the outer surface of the bending band 4 is arranged as an arc surface, thereby reducing the impact force of the transport medium on the gate plate 1 body, and at the same time, the transport medium moving to the side of the gate plate 1 is guided through the path of the bending band 4 to flow downward, so that it can flow more quickly from the gap between the gate plate 1 and the wedge-type gate valve to realize the flow of the transport medium.

[0025] In addition, the large arc groove 6 is arranged at the edge of one side of the bottom edge 5 close to the inclined surface of the gate plate 1, so that when the transport medium flows along the side of the gate plate 1, when it moves to the bottom edge of the gate plate 1, it can flow along the large arc groove 6 under the action of pressure. In addition, the number of convex ribs 7 is set in several groups, and the number of groups of convex ribs 7 corresponds to the number of large arc grooves 6, and the convex ribs 7 are arranged at the center of two adjacent groups of large arc grooves 6, so that the large arc grooves 6 and the convex ribs 7 are combined to form a wavy drainage structure at the edge of the side of the bottom edge 5, so that the transport medium flowing through the drainage structure will be affected by its shape and produce different flow states, and due to its wavy shape, the impact force of the transport medium on the gate plate 1 when it flows rapidly is reduced, thereby avoiding affecting the service life of the gate plate 1.

[0026] Furthermore, the triangular bevel groove 9 is in a triangular shape that is narrow at the top and wide at the bottom and is arranged at the central axis of the convex ridge 7, and the bottom end of the triangular bevel groove 9 is kept flush with the lower surface of the bottom edge 5. In addition, the arc edge 10 opened at the end of the triangular bevel groove 9 can effectively reduce the impact force of the transport medium on the triangular bevel groove 9, and guide the nearby transport medium so that it can move toward the bottom area of ​​the gate plate 1 through the triangular bevel groove 9, thereby cooperating with the movement path of the transport medium generated by the large arc groove 6, so that the transport medium flowing at the bottom of the gate plate 1 has mutual influence in the horizontal direction, thereby reducing the impact force on the gate plate 1 in the vertical and lateral directions, so as to ensure the service life of the gate plate 1 and the wedge gate valve.

[0027] In an embodiment of the utility model, the reflux groove 8 is arranged at the top center of the large arc groove 6, and the bottom end of the curved surface of the reflux groove 8 close to the center side of the bottom edge 5 faces the side of the bottom edge 5, so that the reflux groove 8 forms a reverse flow channel on the top inner surface of the large arc groove 6, and then when the transport medium moves along the inner surface of the large arc groove 6 under the action of pressure, the reflux groove 8 with the reverse flow channel is set, so that the transport medium will have a small impact on the side area below, and cooperate with the flow of the transport medium itself to impact and clean the inside of the embedded groove opened at the bottom of the wedge gate valve, so as to ensure the cleanliness of the internal space of the wedge gate valve, avoid the accumulation of dirt inside the wedge gate valve, affect the transmission purity of the transport medium, and improve the use effect of the wedge gate valve.

[0028] In the utility model, when in use, the user controls the connecting sleeve 2 through the external connecting piece, so that the connecting sleeve 2 drives the gate plate 1 to move upward inside the wedge gate valve, and makes the bottom edge 5 disengage from the embedded groove opened at the bottom of the wedge gate valve. At this time, the internal space of the wedge gate valve is exposed through the gate plate 1, so that the wedge gate valve maintains a passage, thereby realizing the circulation of the transport medium. At the same time, by providing the bottom edge 5 at the bottom of the gate plate 1 and the diversion mechanism provided at the bottom edge of the bottom edge 5, in combination with a plurality of groups of large arc grooves 6 and convex ridges 7 arranged in a wave shape, the transport medium flowing through the drainage structure will be affected by its shape and produce different flow states, and due to its wavy shape, the impact force of the transport medium on the gate plate 1 when it flows rapidly is reduced, thereby avoiding the gate plate 1. The service life of the wedge-type gate valve is affected, and the triangular inclined groove 9 opened at the bottom of the convex rib 7 is set so that the transport medium flowing at the bottom of the gate plate 1 affects each other in the horizontal direction, thereby reducing the impact force on the gate plate 1 in the vertical and horizontal directions, so as to ensure the service life of the gate plate 1 and the wedge-type gate valve. In addition, a return groove 8 is opened on the top inner surface of the large arc groove 6, and the reverse direction flow channel is set inside it, so that the transport medium will have a small impact on the side area below, and cooperate with the flow of the transport medium itself to impact and clean the inside of the embedded groove opened at the bottom of the wedge-type gate valve, so as to ensure the cleanliness of the internal space of the wedge-type gate valve, avoid the accumulation of dirt inside the wedge-type gate valve, affect the transmission purity of the transport medium, and improve the use effect of the wedge-type gate valve.

[0029] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not deviate from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A gate structure, comprising a gate (1), a connecting sleeve (2) being fixedly mounted on the top of the gate (1), a mounting groove being provided on the bottom side of the gate (1), a sealing strip (3) being clamped inside the mounting groove, a bending strip (4) being fixedly mounted on the side wall of the gate (1), and a bottom edge (5) being fixedly mounted on the bottom of the gate (1), characterized in that: The lower surface of the bottom edge (5) is provided with a diversion mechanism, and the diversion mechanism comprises: Large arc grooves (6), the lower surface of the bottom edge (5) is provided with large arc grooves (6), the number of the large arc grooves (6) is arranged in a plurality of groups, and the plurality of groups of large arc grooves (6) are evenly distributed on the lower surface of the bottom edge (5) in a linear array, and a convex ridge (7) is arranged between two adjacent large arc grooves (6); A return groove (8) is provided on the top inner surface of the large arc groove (6), a triangular bevel groove (9) is provided on the lower surface of the convex ridge (7), and an arc-shaped edge (10) is provided at the edge of one end of the side wall of the triangular bevel groove (9) close to the bottom edge (5).

2. A gate structure according to claim 1, characterized in that: The end section of the gate plate (1) is arranged to be a trapezoidal shape that is wide at the top and narrow at the bottom, and both sides of the gate plate (1) are arranged to be inclined.

3. A gate structure according to claim 1, characterized in that: The sealing strip (3) is arranged in close contact with the upper surface of the bottom edge (5), and the bottom of the wedge-type gate valve is provided with an embedded groove that is matched in size to the bottom edge (5).

4. A gate structure according to claim 1, characterized in that: The large arc groove (6) is arranged at an edge of one side of the bottom edge (5) close to the inclined surface of the gate plate (1), the number of the convex ridges (7) is arranged in a plurality of groups, and the number of the groups of convex ridges (7) corresponds to the number of the large arc grooves (6), and the convex ridges (7) are arranged at the exact center of two adjacent groups of large arc grooves (6).

5. A gate structure according to claim 1, characterized in that: The triangular bevel groove (9) is in a triangular shape that is narrow at the top and wide at the bottom and is arranged at the central axis of the convex ridge (7), and the bottom end of the triangular bevel groove (9) is kept flush with the lower surface of the bottom edge (5).

6. A gate structure according to claim 1, characterized in that: The return groove (8) is arranged at the top center of the large arc groove (6), and the bottom end of the curved surface of the return groove (8) close to the center of the bottom edge (5) faces the side of the bottom edge (5).

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