Improved gate valve rod

Abstract

The utility model relates to the technical field of gate valve rods, in particular to an improved gate valve rod which comprises a body, a gate valve assembly is arranged at the top of the body, and a valve deck assembly is arranged at the top of the gate valve assembly. The positioning teeth sink to be separated from the gaps between the limiting teeth through lifting of the pressing rod, the handle can be rotated to drive the valve rod body to rotate, the clamping block and the swing piece can rotate along with the valve rod body, the output quantity can be rapidly adjusted, a pneumatic executing mechanism and a control system are not needed in the structure, cost is low, maintenance cost is low, and operation is convenient. Only regular lubrication and inspection are needed, the structure is simple, stability is high, faults are not prone to occurring, actions are easy to achieve, labels composed of a gear label, an opening label, a direction label and a closing label are utilized, simple, obvious and easy-to-recognize object images, graphs or character symbols serve as visual languages, and besides information representation, the functions of the labels are achieved. And the system also has the functions of expressing significance and instructing actions, so that an operator can use the system more quickly and conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of gate valve stems, in particular to an improved gate valve stem. Background Art

[0002] The gate valve is an opening and closing gate. The movement direction of the gate is perpendicular to the direction of the fluid. The gate valve can only be fully opened and fully closed, and cannot be adjusted or throttled. The gate valve is sealed by the contact between the valve seat and the gate. Usually, the sealing surface will be welded with metal materials to increase wear resistance, such as 1Cr13, STL6, stainless steel, etc. The gate plate has a rigid gate plate and an elastic gate plate. According to the difference in the gate plate, the gate valve is divided into a rigid gate valve and an elastic gate valve. The valve stem is an important part of the valve, which is used for rotation. It is connected to the actuator or handle on the top and directly drives the valve core to move or rotate below to realize the valve opening or closing or regulation.

[0003] Authorization announcement number CN220060592U discloses an improved gate valve stem. This patented technology can make the movable plate move upward through the pull rod, thereby driving several engaging rods to move toward the inner cavity of the mounting block, thereby releasing the engagement between the engaging rods and the engaging grooves. No other tools are needed for operation, and the valve stem and the valve core can be quickly disassembled, and the installation speed is consistent with the existing installation speed; however, there are disadvantages in using magnets for lifting in this scheme. The magnets are sensitive to lifting fluctuations, are brittle, and have poor processing performance. The automatic valve body has large fluid resistance and high power consumption. It is not suitable for media with particles, high viscosity, and easy coking. The adjustment performance is poor, and the valve body has no markings, unclear markings, and irregular markings, which makes the physical properties of the valve body dangerous and brings troubles in use. Therefore, an improved gate valve stem is needed to improve the above problems. Utility Model Content

[0004] In order to solve the drawbacks of the existing scheme of using magnets for lifting, the magnets are sensitive to lifting fluctuations, are brittle, have poor processing performance, the automatic valve body has large fluid resistance, consumes a lot of power, is not suitable for media with particles, high viscosity, and easy to coke, has poor adjustment performance, and the valve body has no markings, unclear markings, and irregular markings, which make the physical properties of the valve body dangerous and bring troubles in use. The purpose of the utility model is to provide an improved gate valve stem to solve the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] An improved gate valve stem comprises a main body, a gate valve assembly is arranged on the top of the main body, and a valve cover assembly is arranged on the top of the gate valve assembly;

[0007] The main body includes a connection compartment;

[0008] The gate valve assembly comprises a tube, a valve stem body is arranged inside the tube, the valve stem body extends to the inside of the connection chamber, a clamping block is arranged at the bottom of the valve stem body, a swinging piece is fixedly connected to the side of the clamping block, a handle is fixedly connected to the top of the valve stem body, a pressure rod is arranged at the bottom of the handle, and a positioning tooth is fixedly connected to the side of the pressure rod;

[0009] The valve cover assembly includes a motorized plate, a side of which is fixedly connected with a limiting tooth, a plurality of limiting teeth are provided, and a gear label, an opening label, a direction label and a closing label are fixedly connected with the top of the motorized plate.

[0010] As a preferred solution of the utility model, a flange cover is fixedly connected to the top of the tube, two clamping blocks and two swinging plates are provided, and two swinging plates are provided on both sides of the two clamping blocks.

[0011] As a preferred solution of the utility model, the pressure rod is arranged inside the handle, and a movable pin is arranged on the side of the handle, and the movable pin penetrates and connects the handle and the pressure rod.

[0012] As a preferred solution of the utility model, the direction label is provided in the middle of the opening label and the closing label, and the top of the motorized piece is provided with a fixing bolt, and two fixing bolts are provided.

[0013] As a preferred solution of the utility model, the top and bottom of the connecting bin are fixedly connected with hole rings, and four hole rings are provided.

[0014] As a preferred solution of the utility model, a bottom block is fixedly connected to the bottom of the connecting bin, and a rubber ring is arranged on the side of the connecting bin, and two rubber rings are arranged.

[0015] As a preferred solution of the utility model, a connecting sleeve is provided on the side of the rubber ring, two connecting sleeves are provided, and a sealing sleeve is provided inside the connecting sleeve.

[0016] As a preferred solution of the utility model, a tube body is fixedly connected to the interior of the sealing sleeve, and two tube bodies and sealing sleeves are provided.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] 1. In the utility model, the positioning teeth are sunk and separated from the gap between the limit teeth by lifting the pressure rod, and the handle can be turned to drive the valve stem body to rotate. The clamping block and the swing piece will rotate with the valve stem body, and the output can be quickly adjusted. This structure does not require a pneumatic actuator and a control system, has a low cost and low maintenance cost, only requires regular lubrication and inspection, has a simple structure, high stability, is not prone to failure, and is easy to achieve.

[0019] 2. In the present invention, by utilizing labels composed of gear labels, opening labels, direction labels and closing labels, they use simple, obvious and easily recognizable images, graphics or text symbols as intuitive languages. In addition to indicating information, they also have the functions of expressing meanings and instructing actions, making it quicker and more convenient for operators to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 It is a schematic diagram of the exploded structure of the utility model;

[0022] Figure 3 This is a schematic diagram of the structure of the valve body assembly of the utility model;

[0023] Figure 4 It is a schematic diagram of the structure of the motorized assembly of the utility model.

[0024] In the figure: 1. main body; 101. connecting compartment; 102. hole ring; 103. bottom block; 104. rubber ring; 105. connecting sleeve; 106. sealing sleeve; 107. pipe body; 2. gate valve assembly; 201. pipe tube; 202. clamping block; 203. swing plate; 204. flange cover; 205. handle; 206. pressure rod; 207. movable pin; 208. positioning tooth; 209. valve stem body; 3. valve cover assembly; 301. motor plate; 302. limit tooth; 303. gear label; 304. open label; 305. direction label; 306. close label; 307. fixing bolt. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0026] For examples, see Figure 1-4 , the utility model provides a technical solution:

[0027] An improved gate valve stem comprises a main body 1, a gate valve assembly 2 is arranged on the top of the main body 1, and a valve cover assembly 3 is arranged on the top of the gate valve assembly 2.

[0028] In this embodiment, Figure 1 , Figure 3 and Figure 4As shown, the main body 1 includes a connecting chamber 101, the gate valve assembly 2 includes a tube 201, a valve stem body 209 is arranged inside the tube 201, the valve stem body 209 extends to the inside of the connecting chamber 101, the valve stem body 209 has a bottom clamping block 202, the side of the clamping block 202 is fixedly connected with a swinging piece 203, the top of the valve stem body 209 is fixedly connected with a handle 205, the bottom of the handle 205 is provided with a pressure rod 206, the side of the pressure rod 206 is fixedly connected with a positioning tooth 208, the valve cover assembly 3 includes a motor plate 301, the side of the motor plate 301 is fixedly connected with a limiting tooth 302, the limiting tooth 302 is provided with a plurality of, the top of the motor plate 301 is fixedly connected with a gear label 303, an opening label 304, a direction label 305 and a closing label 306, the gate valve composed of the valve stem body 209, the clamping block 202 and the swinging piece 203 has a small operating torque, a small installation space and a light weight, and has good durability and reliability.

[0029] Among them, the top of the tube 201 is fixedly connected with a flange cover 204, two clamping blocks 202 and swinging plates 203 are provided, the two swinging plates 203 are provided on both sides of the two clamping blocks 202, the pressure rod 206 is provided inside the handle 205, and a movable pin 207 is provided on the side of the handle 205, and the movable pin 207 passes through and connects the handle 205 and the pressure rod 206, and the direction label 305 is provided in the middle of the opening label 304 and the closing label 306. A fixing bolt 307 is provided on the top of the motor plate 301, and two fixing bolts 307 are provided. The cooperation of the handle 205, the pressure rod 206 and the movable pin 207 can conveniently control the gear position of the positioning tooth 208, thereby conveniently controlling the size of the flow.

[0030] In this embodiment, Figure 1 and Figure 2 As shown, the top and bottom of the connecting chamber 101 are fixedly connected with hole rings 102, and four hole rings 102 are provided. The bottom of the connecting chamber 101 is fixedly connected with a bottom block 103, and the side of the connecting chamber 101 is provided with a rubber ring 104, and two rubber rings 104 are provided. The side of the rubber ring 104 is provided with a connecting sleeve 105, and two connecting sleeves 105 are provided. The interior of the connecting sleeve 105 is provided with a sealing sleeve 106, and the interior of the sealing sleeve 106 is fixedly connected with a tube body 107, and two tube bodies 107 and sealing sleeves 106 are provided. The sealing sleeve 106 and the rubber ring 104 both play the role of erosion resistance, wear resistance and long service life of the gate valve, thereby ensuring the sealing performance of the gate valve.

[0031] Working process of the utility model: When the improved gate valve stem designed by the present invention is working, it is operated according to the instructions of the gear label 303, the opening label 304, the direction label 305 and the closing label 306. The positioning tooth 208 is sunk and separated from the gap between the limiting teeth 302 by lifting the pressure rod 206. The handle 205 can be turned to drive the valve stem body 209 to rotate. The clamping block 202 and the swinging piece 203 will rotate with the valve stem body 209 to adjust the flow rate. During the rotation, the positioning tooth 208 can be controlled to fall between two limiting teeth 302 according to the required adjustment size. The gears arranged by the gear label 303 ensure the accuracy of adjusting the flow rate.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An improved gate valve stem, comprising a main body (1), characterized in that: A gate valve assembly (2) is arranged on the top of the main body (1), and a valve cover assembly (3) is arranged on the top of the gate valve assembly (2); The main body (1) comprises a connecting compartment (101); The gate valve assembly (2) comprises a tube (201), a valve stem body (209) is arranged inside the tube (201), the valve stem body (209) extends into the interior of the connection chamber (101), a clamping block (202) is provided at the bottom of the valve stem body (209), a swinging piece (203) is fixedly connected to the side of the clamping block (202), a handle (205) is fixedly connected to the top of the valve stem body (209), a pressure rod (206) is provided at the bottom of the handle (205), and a positioning tooth (208) is fixedly connected to the side of the pressure rod (206); The valve cover assembly (3) comprises a motorized plate (301), a side surface of the motorized plate (301) being fixedly connected to a limiting tooth (302), a plurality of limiting teeth (302) being provided, and a top of the motorized plate (301) being fixedly connected to a gear position label (303), an opening label (304), a direction label (305) and a closing label (306).

2. An improved gate valve stem according to claim 1, characterized in that: A flange cover (204) is fixedly connected to the top of the tube (201), two clamping blocks (202) and two swinging plates (203) are provided, and the two swinging plates (203) are provided on both sides of the two clamping blocks (202).

3. The improved gate valve stem according to claim 1 is characterized in that: The pressure rod (206) is arranged inside the handle (205), and a movable pin (207) is arranged on the side of the handle (205), and the movable pin (207) penetrates and connects the handle (205) and the pressure rod (206).

4. The improved gate valve stem according to claim 1 is characterized in that: The direction label (305) is provided between the opening label (304) and the closing label (306), and the top of the motorized plate (301) is provided with a fixing bolt (307), and two fixing bolts (307) are provided.

5. The improved gate valve stem according to claim 1 is characterized in that: The top and bottom of the connection bin (101) are fixedly connected with eyelets (102), and four eyelets (102) are provided.

6. The improved gate valve stem according to claim 1, characterized in that: The bottom of the connection chamber (101) is fixedly connected to a bottom block (103), and a rubber ring (104) is provided on the side of the connection chamber (101), and two rubber rings (104) are provided.

7. An improved gate valve stem according to claim 6, characterized in that: A connecting sleeve (105) is provided on the side of the rubber ring (104), two connecting sleeves (105) are provided, and a sealing sleeve (106) is provided inside the connecting sleeve (105).

8. The improved gate valve stem according to claim 7, characterized in that: The sealing sleeve (106) is fixedly connected to a tube body (107) inside, and two tube bodies (107) and two sealing sleeves (106) are provided.

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