Wear-resistant and pressure-resistant gate valve

Abstract

The utility model relates to the technical field of gate valves, and discloses a wear-resistant and pressure-resistant gate valve, which solves the problem that the sealing performance is reduced due to abrasion easily caused by relative sliding between two contact sealing surfaces of a gate and a valve seat at present, and comprises a valve body, and two connecting pipes are symmetrically and fixedly connected to the outer side of the valve body; a sealing mechanism is arranged on the valve body, two sealing gaskets are symmetrically and fixedly connected to the interior of the valve body and correspond to the two connecting pipes respectively, the sealing mechanism comprises a mounting plate located in the valve body, two U-shaped round rods are symmetrically and fixedly connected to the outer side of the mounting plate, and sleeve plates fixedly sleeve the middles of the outer sides of the two U-shaped round rods; flashboards are fixedly connected to the sides, away from each other, of the two sleeve plates, and the two flashboards are located between the two sealing gaskets; according to the gate valve, the whole gate valve can be conveniently closed for sealing, friction does not occur between the valve body and the gate plate and between the sealing gasket and the gate plate, and therefore the sealing performance of the whole gate valve is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of gate valve, concretely is a kind of wear-resistant pressure gate valve. BACKGROUND

[0002] Gate valve is one of the most commonly used cut-off valves, mainly used to connect or cut off medium in pipeline, not used to adjust medium flow, and used in a wide range of pressure, temperature and diameter, especially in medium and large diameter pipelines.

[0003] The existing gate valve has relative sliding between the two sealing surfaces of the gate and the valve seat when opening and closing, which is easy to scratch under the action of medium force, thereby easily damaging the sealing performance and affecting the service life. INVENTION CONTENTS

[0004] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a wear-resistant pressure gate valve, which effectively solves the problem of easy scratching between the two sealing surfaces of the gate and the valve seat, which leads to the decline of sealing performance.

[0005] To achieve the above purpose, the utility model provides the following technical scheme: a wear-resistant pressure gate valve, comprising a valve body, the outer side of the valve body is symmetrically connected with two connecting pipes, the valve body is provided with a sealing mechanism, the inside of the valve body is symmetrically connected with two sealing pads, and the two sealing pads correspond to the two connecting pipes respectively;

[0006] The sealing mechanism comprises a mounting plate located in the inside of the valve body, the outer side of the mounting plate is symmetrically connected with two U-shaped round rods, the outer middle part of the two U-shaped round rods is fixedly sleeved with a sleeve plate, the side away from each other of the two sleeve plates is fixedly connected with a gate respectively, the two gates are located between the two sealing pads, the two gates and the two sealing pads are located at the same height, and the outer diameter value of the two gates is equal to the outer diameter value of the two sealing pads.

[0007] Preferably, the top of the valve body is fixedly connected with a top box, two vertical columns are symmetrically fixedly connected between the inner top wall of the top box and the inner bottom wall of the valve body, and the mounting plate is movably sleeved on the outer side of the two vertical columns.

[0008] Preferably, the bottom of the mounting plate is provided with a bottom disc, the bottom of the bottom disc is rotationally connected with two movable rods at equal angles, and the ends away from the bottom disc of the two movable rods are rotationally connected to the bottoms of the two sleeve plates respectively.

[0009] Preferably, the top of the bottom disc is fixedly connected with a driving shaft, the top end of the driving shaft penetrates the mounting plate and the top box and is fixedly connected with a driving motor, the top of the top box is fixedly connected with a top cylinder, and the driving motor is located in the inside of the top cylinder.

[0010] Preferably, the driving motor is fixedly installed with a support seat, and a cylinder is fixedly installed between the support seat and the inner top wall of the top cylinder.

[0011] Preferably, a vertical cylinder is fixedly installed on the top of the mounting plate, the top end of the vertical cylinder penetrates through the top box and extends into the inside of the top cylinder, the driving shaft is rotationally connected to the inside of the vertical cylinder, the top of the top box is fixedly connected with a sealing ring, the sealing ring is sleeved on the outside of the vertical cylinder, the outside of the vertical cylinder is fixedly sleeved with a side plate, and the side plate is fixedly connected with the support seat.

[0012] Compared with the prior art, the utility model has the advantages that:

[0013] 1. The utility model discloses a driving motor and a driving shaft are cooperated with a bottom disc and a movable rod, so that two sleeve plates can slide along two U-shaped round rods, then two gate plates can be away from each other and be attached to two sealing pads respectively, so that the whole gate valve can be closed and sealed, and no friction occurs between the valve body, the sealing pad and the gate plate, so that the sealing performance of the whole gate valve is ensured.

[0014] 2. The utility model discloses a cooperation between a cylinder, a support seat, a side plate, a vertical cylinder, a mounting plate and a stand, so that two gate plates can move longitudinally, when the two gate plates are lowered into the inside of the valve body, the two gate plates can be away from each other and be attached to two sealing pads respectively, the closing of the gate valve can be realized, and when the two gate plates are raised into the inside of the top box, the two gate plates can be stored, so that the normal flow of medium is facilitated. BRIEF DESCRIPTION OF DRAWINGS

[0015] The drawings are used to provide a further understanding of the utility model, and constitute a part of the specification, are used together with the embodiments of the utility model to explain the utility model, and do not constitute the limitation to the utility model.

[0016] In the drawings:

[0017] Fig. 1 It is a structure schematic view of the utility model wear-resistant pressure-resistant gate valve;

[0018] Fig. 2 It is a structure schematic view of the utility model valve body;

[0019] Fig. 3 It is a structure schematic view of the utility model sealing mechanism;

[0020] Fig. 4 It is a structure schematic view of the utility model sleeve plate;

[0021] Fig. 5 It is a structure schematic view of the utility model top cylinder and top box;

[0022] Fig. 6 It is a structure schematic view of the utility model support seat.

[0023] In the figure: 1, valve body; 2, sealing mechanism; 201, mounting plate; 202, sleeve plate; 203, gate plate; 204, upright column; 205, top cylinder; 206, top box; 207, upright cylinder; 208, drive shaft; 209, U-shaped round rod; 2010, bottom plate; 2011, movable rod; 2012, air cylinder; 2013, support seat; 2014, drive motor; 2015, sealing ring; 2016, side plate; 3, connecting pipe; 4, sealing gasket. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0025] In one embodiment, the present application relates to a wear-resistant and pressure-resistant gate valve, which comprises a valve body 1, two connecting pipes 3 are symmetrically and fixedly connected to the outer side of the valve body 1, a sealing mechanism 2 is arranged on the valve body 1, two sealing gaskets 4 are symmetrically and fixedly connected to the inside of the valve body 1, and the two sealing gaskets 4 correspond to the two connecting pipes 3 respectively. Figs. 1-2 In one embodiment, the present application relates to a wear-resistant and pressure-resistant gate valve, which comprises a valve body 1, two connecting pipes 3 are symmetrically and fixedly connected to the outer side of the valve body 1, a sealing mechanism 2 is arranged on the valve body 1, two sealing gaskets 4 are symmetrically and fixedly connected to the inside of the valve body 1, and the two sealing gaskets 4 correspond to the two connecting pipes 3 respectively.

[0026] In one embodiment, the present application relates to a wear-resistant and pressure-resistant gate valve, which comprises a valve body 1, two connecting pipes 3 are symmetrically and fixedly connected to the outer side of the valve body 1, a sealing mechanism 2 is arranged on the valve body 1, two sealing gaskets 4 are symmetrically and fixedly connected to the inside of the valve body 1, and the two sealing gaskets 4 correspond to the two connecting pipes 3 respectively. Figs. 3-6The sealing mechanism 2 includes a mounting plate 201 located inside the valve body 1. Two U-shaped rods 209 are symmetrically fixedly connected to the outer side of the mounting plate 201. A sleeve plate 202 is fixedly sleeved on the middle of the outer side of each of the two U-shaped rods 209. Gate plates 203 are fixedly connected to the sides of the two sleeve plates 202 that are far apart from each other. Both gate plates 203 are made of ceramic material to ensure their wear resistance. The valve body 1 is made of stainless steel, capable of withstanding high pressure and temperature. The two gate plates 203 are located between two sealing gaskets 4, and both gate plates 203 and the two sealing gaskets 4 are at the same height. The outer diameter of both gate plates 203 is equal to the outer diameter of both sealing gaskets 4. A top box 2 is fixedly connected to the top of the valve body 1. 06. Two columns 204 are symmetrically fixedly connected between the inner top wall of the top box 206 and the inner bottom wall of the valve body 1. The mounting plate 201 is movably sleeved on the outside of the two columns 204. A chassis 2010 is provided below the mounting plate 201. Two movable rods 2011 are rotatably connected at equal angles to the bottom of the chassis 2010. The ends of the two movable rods 2011 away from the chassis 2010 are rotatably connected to the bottom of two sleeve plates 202 respectively. A drive shaft 208 is fixedly connected to the top of the chassis 2010. The top end of the drive shaft 208 passes through the mounting plate 201 and the top box 206 and is fixedly connected to a drive motor 2014. A top cylinder 205 is fixedly connected to the top of the top box 206. The drive motor 2014 is located inside the top cylinder 205.

[0027] In operation, the drive motor 2014 is first started, which drives the drive shaft 208 to rotate and the chassis 2010 to rotate. Then, the two movable rods 2011 drive the two sleeves 202 to slide along the two U-shaped rods 209 respectively. At the same time, the two gates 203 move away from each other until they contact the two sealing gaskets 4 respectively, thus closing and sealing the gate valve. There is no friction between the valve body 1 and the sealing gaskets 4 and the gates 203, ensuring the sealing performance of the entire gate valve.

[0028] Specifically, by Figs. 5-6 As shown, a support base 2013 is fixedly installed on the drive motor 2014. A cylinder 2012 is fixedly installed between the support base 2013 and the inner top wall of the top cylinder 205. A vertical cylinder 207 is fixedly installed on the top of the mounting plate 201. The top end of the vertical cylinder 207 passes through the top box 206 and extends into the interior of the top cylinder 205. A drive shaft 208 is rotatably connected to the interior of the vertical cylinder 207. A sealing ring 2015 is fixedly connected to the top of the top box 206. The sealing ring 2015 is sleeved on the outside of the vertical cylinder 207. A side plate 2016 is fixedly sleeved on the outside of the vertical cylinder 207. The side plate 2016 is fixedly connected to the support base 2013.

[0029] In use, firstly, the air cylinder 2012 is started to drive the support seat 2013 to move, and the side plate 2016 is used to drive the vertical cylinder 207 to move, then the mounting plate 201 is driven to slide along the two vertical columns 204, and the longitudinal movement of the two gate plates 203 is realized, when the two gate plates 203 move to the inside of the valve body 1, the two gate plates 203 are separated from each other and are respectively combined with the two sealing gaskets 4 to close the gate valve, when the two gate plates 203 rise to the inside of the top box 206, the two gate plates 203 are stored, and the normal flow of the medium is ensured.

Claims

1. A wear and pressure resistant gate valve comprising a valve body (1), characterized in that: The outer side of the valve body (1) is symmetrically connected with two connecting pipes (3), the valve body (1) is provided with a sealing mechanism (2), the inner side of the valve body (1) is symmetrically connected with two sealing pads (4), and the two sealing pads (4) correspond to the two connecting pipes (3) respectively; The sealing mechanism (2) comprises a mounting plate (201) located in the valve body (1), the outer side of the mounting plate (201) is symmetrically connected with two U-shaped round rods (209), the outer middle part of the two U-shaped round rods (209) is fixedly sleeved with a sleeve plate (202), the side away from each other of the two sleeve plates (202) is fixedly connected with a gate plate (203), the two gate plates (203) are located between the two sealing pads (4), the two gate plates (203) are located at the same height as the two sealing pads (4), and the outer diameter values of the two gate plates (203) are equal to the outer diameter values of the two sealing pads (4).

2. A wear and pressure resistant gate valve according to claim 1, characterized in that: The top of the valve body (1) is fixedly connected with a top box (206), two vertical columns (204) are symmetrically fixedly connected between the inner top wall of the top box (206) and the inner bottom wall of the valve body (1), and the mounting plate (201) is movably sleeved on the outer side of the two vertical columns (204).

3. A wear and pressure resistant gate valve according to claim 1, characterized in that: The bottom of the mounting plate (201) is rotatably connected with two movable rods (2011) at equal angles, and the ends, away from the bottom plate (2010), of the two movable rods (2011) are rotatably connected to the bottoms of the two sleeve plates (202) respectively.

4. A wear and pressure resistant gate valve according to claim 3, characterized in that: The top of the bottom plate (2010) is fixedly connected with a driving shaft (208), the top end of the driving shaft (208) penetrates the mounting plate (201) and the top box (206) and is fixedly connected with a driving motor (2014), the top of the top box (206) is fixedly connected with a top cylinder (205), and the driving motor (2014) is located in the interior of the top cylinder (205).

5. A wear and pressure resistant gate valve according to claim 4, characterized in that: The driving motor (2014) is fixedly installed with a supporting seat (2013), and the supporting seat (2013) and the inner top wall of the top cylinder (205) are fixedly installed with an air cylinder (2012).

6. A wear and pressure resistant gate valve according to claim 1, characterized in that: The top of the mounting plate (201) is fixedly installed with a vertical cylinder (207), the top end of the vertical cylinder (207) penetrates the top box (206) and extends into the interior of the top cylinder (205), the driving shaft (208) is rotatably connected to the interior of the vertical cylinder (207), the top of the top box (206) is fixedly connected with a sealing ring (2015), the sealing ring (2015) is sleeved on the outer side of the vertical cylinder (207), the outer side of the vertical cylinder (207) is fixedly sleeved with a side plate (2016), and the side plate (2016) is fixedly connected with the supporting seat (2013).

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