Novel gate valve

Abstract

The utility model discloses a novel gate valve which comprises a valve body assembly, a valve plate, a valve rod, a sealing ring and a supporting wheel assembly. The valve body assembly comprises a valve body, a left side sealing cavity and a right side sealing cavity; the two sides of the valve body are fixedly connected with a left side sealing cavity and a right side sealing cavity correspondingly. The valve plate is fixedly connected with the valve rod, and the valve rod can drive the valve plate to move; the valve body is provided with a slide way, the slide way is communicated with the interiors of the left side sealing cavity and the right side sealing cavity, and the valve plate can slide in the slide way; both the slide way and the valve plate are provided with inclined planes; the sealing ring is arranged on the valve body, and the sealing ring abuts against the upper end face of the valve plate. The supporting wheel assembly is fixedly connected with the valve body, and when the valve plate slides, the supporting wheel assembly rolls. The gate valve has the technical effects of effective sealing and flexible opening and closing.

Description

Technical Field

[0001] The present application relates to the technical field of gate valves, and in particular to a novel gate valve. Background Art

[0002] The gate valve is a very commonly used valve. The valve stem drives the valve plate to move to open and close. The valve plate is sealed with the valve cavity through a sealing device. During the movement of the valve plate, there is wear between the valve plate and the sealing device. After long-term use, the sealing device is easily damaged, resulting in poor sealing reliability, and it is easy to cause dust in the valve cavity to leak out of the valve body, affecting the on-site environment.

[0003] At present, the gate valves on the market generally have serious wear and poor sealing performance. The existing technical solutions use wool felt for sealing, which has poor sealing effect and is not resistant to high temperatures. In addition, a single trapezoidal screw is used for driving, but the single screw will generate a lateral torque on the center of the gate, making it difficult to push, increasing the wear between the mechanisms, and causing the gate valve to be inflexible after long-term use. Utility Model Content

[0004] The embodiment of the present application solves the technical problems of poor sealing performance of the prior art gate valve and inflexible opening and closing of the valve plate after long-term use by providing a new gate valve. During the transportation of gas, liquid and fixed materials, the gate valve achieves effective sealing and flexible opening and closing.

[0005] The utility model embodiment provides a new type of plug-in valve, including a valve body assembly, a valve plate, a valve stem, a sealing ring and a supporting wheel assembly; the valve body assembly includes a valve body, a left sealing cavity and a right sealing cavity; the left sealing cavity and the right sealing cavity are fixedly connected on both sides of the valve body respectively; the valve plate is fixedly connected to the valve stem, and the valve stem can drive the valve plate to move; the valve body is provided with a slideway, and the slideway connects the interior of the left sealing cavity and the right sealing cavity, and the valve plate can slide in the slideway; the slideway and the valve plate are both provided with inclined surfaces; the sealing ring is provided on the valve body, and the sealing ring abuts against the upper end surface of the valve plate; the supporting wheel assembly is fixedly connected to the valve body, and the supporting wheel assembly rolls when the valve plate slides.

[0006] In a possible implementation, a proximity switch is further included; the proximity switch is fixedly connected to the right sealed cavity.

[0007] In a possible implementation, the valve plate further includes a fixed wedge block; the fixed wedge block is fixedly connected to the valve plate, and the inclined surface is provided on the fixed wedge block.

[0008] In a possible implementation, it also includes a fixing pin and a ball bearing; the fixing pin is fixedly connected to the ball bearing; the ball bearing is fixedly mounted on the valve plate, and the fixing pin passes through one end of the valve stem and the ball bearing in sequence, and is fixedly connected to the other end of the valve stem.

[0009] In a possible implementation, the support wheel assembly includes a fixed block, a wheel axle and a support wheel; the fixed block is fixedly connected to the valve body, and the support wheel rolls when the valve plate slides; the wheel axle is fixedly connected to the fixed block, and the support wheel is rotatably connected to the wheel axle.

[0010] In a possible implementation, the valve body is further provided with a slag discharge hole; the slag discharge hole can be communicated with the right sealing cavity.

[0011] In a possible implementation, the right sealed cavity further includes a cover plate; and the cover plate is fixedly connected to the right sealed cavity.

[0012] One or more technical solutions provided by this application have at least the following technical effects:

[0013] The embodiment of the utility model adopts a valve body assembly, a valve plate, a valve stem, a sealing ring and a supporting wheel assembly, wherein the valve body assembly includes a valve body, a left sealing cavity and a right sealing cavity, the two sides of the valve body are fixedly connected to the left sealing cavity and the right sealing cavity respectively, a slideway connecting the left sealing cavity and the right sealing cavity is provided on the valve body, the valve plate is fixedly connected to the valve stem, and the valve plate can slide in the slideway. Therefore, the valve stem can drive the valve plate to slide in the slideway, that is, the valve plate can slide inside the valve body, the left sealing cavity and the right sealing cavity, thereby realizing the opening and closing function of the plug-in valve, wherein the left sealing cavity can prevent the valve plate from opening and closing multiple times and causing wear on the top of the valve plate, thereby causing the valve plate to fail to close in place, and the left sealing cavity can also enable the valve plate to discharge solid debris entering the left sealing cavity when opening or closing, thereby preventing the valve plate from being stuck by debris entering the sealing cavity.

[0014] Furthermore, the valve body and the valve plate are both provided with inclined surfaces, and a sealing ring is provided on the valve body, the sealing ring abuts against the upper end surface of the valve body, and the inclined surface on the valve body cooperates with the inclined surface on the valve plate. During the closing process of the plug-in valve, the valve plate moves toward the left sealing cavity, which will cause the valve plate to move upward to squeeze the sealing ring, thereby effectively sealing during the closing process of the plug-in valve. The valve body is also fixedly connected to a support wheel assembly, and the support wheel assembly rolls when the valve plate slides, making the opening and closing of the valve more flexible. The present application solves the technical problems of poor sealing performance of the plug-in valve in the prior art, inflexible opening and closing of the valve after long-term use, and the plug-in valve achieves effective sealing and flexible opening and closing in the process of conveying gas, liquid and fixed materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the description of the embodiments of the utility model will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 An axonometric diagram of a novel gate valve provided in an embodiment of the present application;

[0017] Figure 2 A cross-sectional view of a novel gate valve provided in an embodiment of the present application;

[0018] Figure 3 This is an enlarged view of a new type of gate valve provided in an embodiment of the present application.

[0019] Icons: 1-valve body assembly; 11-valve body; 111-slag discharge hole; 12-left sealing chamber; 13-right sealing chamber; 131-cover plate; 2-valve plate; 21-fixed wedge block; 3-valve stem; 31-valve stem support; 4-sealing ring; 5-support wheel assembly; 51-fixed block; 52-axle; 53-support wheel; 6-proximity switch; 7-fixed pin; 8-ball bearing; 9-inclined surface. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] In the description of the embodiments of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the embodiments of the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. The terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In addition, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be a connection between the two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to specific circumstances.

[0022] The embodiment of the utility model provides a new type of plug-in valve, including a valve body assembly 1, a valve plate 2, a valve stem 3, a sealing ring 4 and a supporting wheel assembly 5; the valve body assembly 1 includes a valve body 11, a left sealing cavity 12 and a right sealing cavity 13; the left sealing cavity 12 and the right sealing cavity 13 are fixedly connected on both sides of the valve body 11 respectively; the valve plate 2 is fixedly connected to the valve stem 3, and the valve stem 3 can drive the valve plate 2 to move; the valve body 11 is provided with a slideway, the slideway is connected to the inside of the left sealing cavity 12 and the right sealing cavity 13, and the valve plate 2 can slide in the slideway; the slideway and the valve plate 2 are both provided with an inclined surface 9; a sealing ring 4 is provided on the valve body 11, and the sealing ring 4 abuts against the upper end surface of the valve plate 2; the supporting wheel assembly 5 is fixedly connected to the valve body 11, and the supporting wheel assembly 5 rolls when the valve plate 2 slides.

[0023] Exemplarily, the left sealing cavity 12 and the right sealing cavity 13 are respectively disposed on two sides of the valve body 11 and are located on the same straight line.

[0024] Exemplarily, a valve stem support 31 is provided at the end of the valve stem 3 near the valve body 11, and the valve stem support 31 is fixedly connected to the valve stem 3. The valve stem support 31 is provided with a groove, and the valve plate 2 is arranged in the groove and fixedly connected to the valve stem support 31. The valve stem 3 can drive the valve plate 2 to move. The valve stem 3 can be a hydraulic rod of a hydraulic cylinder or a piston rod of a pneumatic cylinder. Similarly, the valve stem 3 can also be manually controlled.

[0025] Exemplarily, the slideway provided on the valve body 11 can make the interior of the left sealed cavity 12 and the right sealed cavity 13 communicate with the interior of the valve body 11, so that the valve plate 2 can slide along the slideway inside the left sealed cavity 12, the valve body 11 and the right sealed cavity 13, thereby realizing the opening and closing of the gate valve. Exemplarily, when the valve stem 3 drives the valve plate 2 to be inside the right sealed cavity 13, the gate valve is in an open state at this time, and the material can be transported from the internal channel of the valve body 11; Exemplarily, when the valve stem 3 drives the valve plate 2 to slide along the slideway into the left sealed cavity 12, the gate is in a closed state at this time, and the material cannot be transported through the internal channel of the valve body 11.

[0026] Furthermore, both the valve body 11 and the valve plate 2 are provided with inclined surfaces 9, and a sealing ring 4 is provided on the slide of the valve body 11, the sealing ring 4 abuts against the upper end surface of the valve body 11, and the slide of the valve body 11 is provided with an inclined surface 9 that cooperates with the valve plate 2. During the closing process of the gate valve, the valve plate 2 moves toward the left sealing cavity 12, and the inclined surface 9 causes the valve plate 2 to move upward to squeeze the sealing ring 4, thereby performing effective sealing during the closing process of the gate valve.

[0027] Exemplarily, the valve body 11 is also fixedly connected to the support wheel assembly 5, and the valve plate 2 can roll on the support wheel assembly 5, so that the opening and closing of the valve is more flexible.

[0028] In the embodiment of the present application, a proximity switch 6 is also included; the proximity switch 6 is fixedly connected to the right sealed cavity 13 .

[0029] Exemplarily, the proximity switch 6 is fixedly connected to the right sealing cavity 13, and can control and judge the moving position of the valve plate 2. The proximity switch 6 includes a proximal proximity switch and a distal proximity switch, wherein the end of the valve stem 3 is provided with a sensing device of the proximity switch 6, when the proximal proximity switch senses the sensing device at the end of the valve stem 3, it indicates that the valve is in an open position at this time; when the distal proximity switch senses the sensing device at the end of the valve stem 3, it indicates that the valve is in a closed position at this time.

[0030] Exemplarily, the proximity switch 6 can transmit a signal to the control device, and the control device can control the movement of the valve stem 3, thereby realizing the automatic opening and closing of the gate valve.

[0031] In the embodiment of the present application, the valve plate 2 further includes a fixed wedge block 21 ; the fixed wedge block 21 is fixedly connected to the valve plate 2 , and an inclined surface 9 is provided on the fixed wedge block 21 .

[0032] Exemplarily, the inclined surface 9 provided on the fixed wedge block 21 cooperates with the inclined surface 9 on the slideway. During the closing process of the gate valve, the valve plate 2 moves toward the left sealing cavity 12, and the inclined surface 9 causes the valve plate 2 to move upward to squeeze the sealing ring 4, thereby performing effective sealing during the closing process of the gate valve.

[0033] In the embodiment of the present application, it also includes a fixing pin 7 and a ball bearing 8; the fixing pin 7 is fixedly connected to the ball bearing 8; the ball bearing 8 is fixedly installed on the valve plate 2, and the fixing pin 7 passes through one end of the valve stem 3 and the ball bearing 8 in sequence, and is fixedly connected to the other end of the valve stem 3.

[0034] Exemplarily, a valve stem 3 support is provided at the end of the valve stem 3 near the valve body 11, the valve stem 3 support is fixedly connected to the valve stem 3, the valve stem 3 support is provided with a groove, the valve plate 2 is arranged in the groove, the valve plate 2 and the valve stem 3 support are fixedly connected by a fixing pin 7 and a ball bearing 8, wherein the ball bearing 8 is fixedly installed in the mounting hole of the valve plate 2, and the fixing pin 7 passes through the valve stem 3 support and the ball bearing 8 in sequence and is fixedly connected.

[0035] Illustratively, the inner ring and the outer ring of the ball bearing 8 are deflected at a certain angle. Due to the existence of the inclined surface 9, the ball bearing 8 can prevent the valve plate 2 from getting stuck during movement, thereby ensuring that the valve plate 2 can move flexibly in the slideway.

[0036] In the embodiment of the present application, the support wheel assembly 5 includes a fixed block 51, a wheel axle 52 and a support wheel 53; the fixed block 51 is fixedly connected to the valve body 11, and the support wheel 53 rolls when the valve plate 2 slides; the wheel axle 52 is fixedly connected to the fixed block 51, and the support wheel 53 is rotatably connected to the wheel axle 52.

[0037] Exemplarily, the support wheel assembly 5 includes a fixed block 51, an axle 52 and a support wheel 53; the fixed block 51 is fixedly connected to the valve body 11, and the valve plate 2 can roll on the support wheel 53; the axle 52 is rotatably connected to the fixed block 51, and the support wheel 53 is fixedly connected to the axle 52.

[0038] Exemplarily, the fixed block 51 and the valve body 11 can also be slidably connected. A track and an elastic element are arranged on the valve body 11. The fixed block 51 is fixedly connected to the end of the elastic element. The elastic element is arranged on the track. The fixed block 51 can slide in the slide through the elastic element. When the valve plate 2 rolls on the supporting wheel 53, as the valve plate 2 rises, the elastic element stretches, thereby driving the fixed block 51 to move, so that the supporting wheel 53 is always in contact with the valve plate 2 during the rising process of the valve plate 2, which can make the movement of the valve plate 2 more flexible.

[0039] In the embodiment of the present application, the valve body 11 is further provided with a slag discharge hole 111 ; the slag discharge hole 111 can be communicated with the right sealing cavity 13 .

[0040] Exemplarily, the slag discharge hole 111 provided in the valve body 11 can discharge the remaining materials in the valve body 11, whether solid, liquid or gaseous materials, can be discharged from the slag discharge hole 111. The slag discharge hole 111 can prevent the valve plate 2 from getting stuck, and can also prevent the remaining materials from corroding the sealing elements of the valve stem 3.

[0041] In the embodiment of the present application, the right sealed cavity 13 further includes a cover plate 131 ; the cover plate 131 is fixedly connected to the right sealed cavity 13 .

[0042] Exemplarily, the cover plate 131 is disposed on the top of the right sealing cavity 13, which can prevent materials or other impurities from contacting the internal parts of the valve stem 3, and can also play a role in beautifying, cleaning and maintaining the equipment.

[0043] The various embodiments in this specification are described in a progressive manner, and the same or similar parts between the various embodiments can be referenced to each other. Each embodiment focuses on the differences from other embodiments.

[0044] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit the present application. Although the present application has been described in detail with reference to the aforementioned embodiments, a person of ordinary skill in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some or all of the technical features thereof may be replaced by equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the present application.

Claims

1. A new type of gate valve, characterized in that: It comprises a valve body assembly (1), a valve plate (2), a valve stem (3), a sealing ring (4) and a supporting wheel assembly (5); The valve body assembly (1) comprises a valve body (11), a left sealing cavity (12) and a right sealing cavity (13); The valve body (11) is fixedly connected to two sides thereof with a left sealing cavity (12) and a right sealing cavity (13) respectively; The valve plate (2) is fixedly connected to the valve stem (3), and the valve stem (3) can drive the valve plate (2) to move; The valve body (11) is provided with a slideway, the slideway is connected to the inside of the left sealed cavity (12) and the right sealed cavity (13), and the valve plate (2) can slide in the slideway; The slideway and the valve plate (2) are both provided with an inclined surface (9); The valve body (11) is provided with the sealing ring (4), and the sealing ring (4) abuts against the upper end surface of the valve plate (2); The support wheel assembly (5) is fixedly connected to the valve body (11), and the support wheel assembly (5) rolls when the valve plate (2) slides.

2. A new type of gate valve according to claim 1, characterized in that: Also includes a proximity switch (6); The proximity switch (6) is fixedly connected to the right sealed cavity (13).

3. A new type of gate valve according to claim 1, characterized in that: The valve plate (2) further comprises a fixed wedge (21); The fixed wedge block (21) is fixedly connected to the valve plate (2), and the fixed wedge block (21) is provided with the inclined surface (9).

4. A new type of gate valve according to claim 1, characterized in that: It also includes a fixing pin (7) and a ball bearing (8); The fixing pin (7) is fixedly connected to the ball bearing (8); The ball bearing (8) is fixedly mounted on the valve plate (2), and the fixing pin (7) passes through one end of the valve stem (3) and the ball bearing (8) in sequence, and is fixedly connected to the other end of the valve stem (3).

5. A new type of gate valve according to claim 1, characterized in that: The supporting wheel assembly (5) comprises a fixing block (51), a wheel axle (52) and a supporting wheel (53); The fixed block (51) is fixedly connected to the valve body (11), and the supporting wheel (53) rolls when the valve plate (2) slides; The wheel axle (52) is fixedly connected to the fixed block (51), and the supporting wheel (53) is rotatably connected to the wheel axle (52).

6. A new type of gate valve according to claim 1, characterized in that: The valve body (11) is also provided with a slag discharge hole (111); the slag discharge hole (111) can be communicated with the right sealing cavity (13).

7. A new type of gate valve according to claim 1, characterized in that: The right sealed cavity (13) further comprises a cover plate (131); The cover plate (131) is fixedly connected to the right sealed cavity (13).

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