Lubricating type top drive plug valve

Abstract

The utility model relates to the technical field of valves, in particular to a lubrication type top drive plug valve which comprises a pipe body, a valve element, two fixing rings, a first sealing pipe, a second sealing pipe and a lubrication assembly, the first sealing pipe and the second sealing pipe are fixedly connected with the pipe body, the valve element is rotatably connected with the pipe body, the two fixing rings are fixedly connected with the valve element, and the lubrication assembly is fixedly connected with the pipe body. The two fixing rings are connected with the first sealing pipe and the second sealing pipe in a clamped mode respectively, a first pipeline and a second pipeline are arranged in the valve element, one end of the second pipeline is arranged at the bottom of the valve element, the other end of the second pipeline is located at the lower end of the valve element, a first groove and a second groove are further formed in the surface of the valve element, and the first groove is formed in the upper end of the valve element. Through the arrangement of the structure, the problem that lubricating oil is not prone to entering due to the fact that a gap reserved between an existing valve and an existing valve element is small due to the requirement for sealing performance is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of valves, in particular to a lubricating top-driven plug valve. Background Art

[0002] The valve is a control component in the fluid delivery system, with functions such as shutoff, regulation, diversion, backflow prevention, pressure stabilization, flow diversion or overflow pressure relief. Plug valve is a type of valve, among which the manual plug valve is widely used, with the advantages of simple operation and low maintenance cost.

[0003] After long-term use, existing valves are prone to getting stuck with impurities or getting damp, causing them to rotate unsmoothly. This problem is usually solved by dripping lubricating oil between the valve and the valve core. However, due to the sealing requirements, the gap between the valve and the valve core is small, making it difficult for lubricating oil to enter. Utility Model Content

[0004] The utility model aims to provide a lubricating top drive plug valve to solve the problem.

[0005] To achieve the above-mentioned purpose, the utility model provides a lubricated top-driven plug valve, comprising a tube body, a valve core, two fixing rings, a first sealing tube, a second sealing tube and a lubrication assembly, wherein the first sealing tube and the second sealing tube are fixedly connected to the tube body and are located on both sides of the tube body, the valve core is rotatably connected to the tube body and is located inside the first sealing tube and the second sealing tube, an opening is provided in the middle section of the valve core, two fixing rings are fixedly connected to the valve core and are located at both ends of the valve core, and the two fixing rings are respectively clamped with the first sealing tube and the second sealing tube, a first pipeline and a second pipeline are provided inside the valve core, one end of the first pipeline is provided at the bottom of the valve core, the other end of the first pipeline is located at the upper end of the valve core, one end of the second pipeline is provided at the bottom of the valve core, the other end of the second pipeline is located at the lower end of the valve core, a first groove and a second groove are further provided on the surface of the valve core, the first groove is provided at the upper end of the valve core and is communicated with the first pipeline, the second groove is provided at the lower end of the valve core and is communicated with the second pipeline, and the lubrication assembly is provided below the second sealing tube.

[0006] In which, the lubrication assembly includes a box body, a connecting pipe, a pump body, a fixed pipe, four sliding rods and a sealing plate, the fixed pipe is fixedly connected to the second sealing pipe and is located below the second sealing pipe, one end of the connecting pipe is detachably connected to the sealing pipe, the other end of the sealing pipe is fixedly connected to the box body, one end of the four sliding rods is slidably connected to the fixed pipe, the other end of the four sliding rods is fixedly connected to the sealing plate and is located below the second sealing pipe, and the pump body is connected to the connecting pipe and is located at one end of the connecting pipe.

[0007] Wherein, the lubrication assembly further comprises a limit block, which is fixedly connected to the valve core and is located below the valve core.

[0008] Wherein, the lubricated top-driven plug valve further includes a rotating assembly, and the rotating assembly is arranged above the first sealing tube.

[0009] Among them, the rotating assembly includes a limit column, a handle and a limit ring, the limit ring is fixedly connected to the first sealing tube and is located above the first sealing tube, the limit column is fixedly connected to the valve core and is located inside the limit ring, the handle is slidably connected to the limit column and is located on one side of the limit column, and a plurality of grooves are evenly arranged on the upper end of the limit ring, and the grooves are adapted to the handle.

[0010] The utility model discloses a lubricating top-driven plug valve, wherein the first sealing tube and the second sealing tube are fixedly connected to the tube body and are located at both sides of the tube body, the valve core is rotatably connected to the tube body and is located inside the first sealing tube and the second sealing tube, the middle section of the valve core is provided with an opening, the two fixing rings are fixedly connected to the valve core and are located at both ends of the valve core, and the two fixing rings are respectively clamped with the first sealing tube and the second sealing tube, the inside of the valve core is provided with a first pipeline and a second pipeline, one end of the first pipeline is provided at the bottom of the valve core, and the other end of the first pipeline is located at the upper end of the valve core, one end of the second pipeline is provided at the bottom of the valve core, and the other end of the second pipeline is located at the upper end of the valve core, At the lower end of the valve core, a first groove and a second groove are further provided on the surface of the valve core, the first groove is provided at the upper end of the valve core and is communicated with the first pipe, the second groove is provided at the lower end of the valve core and is communicated with the second pipe, the lubrication assembly is provided below the second sealing tube, the valve core is rotated, the position of the opening is adjusted, the flow rate of the internal liquid is controlled, the lubricating oil is injected into the bottom of the second sealing tube, the lubricating oil enters the valve core through the first pipe and the second pipe, and flows between the valve core and the first pipe and the second pipe through the first groove and the second groove, the valve core is rotated so that the lubricating oil is mixed and applied to the inner walls of the first pipe and the second pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only 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.

[0012] Figure 1 It is a schematic diagram of the overall structure of the first embodiment of the utility model.

[0013] Figure 2 It is a front view of the first embodiment of the utility model.

[0014] Figure 3 The utility model Figure 2 AA line section view.

[0015] Figure 4 It is an overall structural diagram of the second embodiment of the utility model.

[0016] 101-tube body, 102-valve core, 103-fixing ring, 104-first sealing tube, 105-second sealing tube, 106-box body, 107-connecting tube, 108-pump body, 109-fixing tube, 110-sliding rod, 111-limiting block, 112-sealing plate, 113-opening, 114-first pipeline, 115-second pipeline, 116-first groove, 117-second groove, 201-limiting column, 202-handle, 203-limiting ring, 204-slot. DETAILED DESCRIPTION

[0017] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0018] First embodiment:

[0019] See also Figure 1 to Figure 3 ,in, Figure 1 It is a schematic diagram of the overall structure of the first embodiment of the utility model. Figure 2 It is a front view of the first embodiment of the utility model. Figure 3 The utility model Figure 2 AA line section view.

[0020] The utility model provides a lubricating top-driven plug valve, comprising a pipe body 101, a valve core 102, two fixing rings 103, a first sealing pipe 104, a second sealing pipe 105 and a lubrication assembly, wherein the lubrication assembly comprises a box body 106, a connecting pipe 107, a pump body 108, a fixing pipe 109, four sliding rods 110, a limit block 111 and a sealing plate 112. The above-mentioned solution solves the problem that the gap between the existing valve and the valve core 102 is small due to the sealing requirement, resulting in the difficulty of lubricating oil entering.

[0021] According to the present specific embodiment, the first sealing tube 104 and the second sealing tube 105 are fixedly connected to the tube body 101 and are located on both sides of the tube body 101. The valve core 102 is rotatably connected to the tube body 101 and is located inside the first sealing tube 104 and the second sealing tube 105. An opening 113 is provided in the middle section of the valve core 102. The two fixing rings 103 are fixedly connected to the valve core 102 and are located at both ends of the valve core 102. The two fixing rings 103 are respectively clamped with the first sealing tube 104 and the second sealing tube 105. A first pipe 114 and a second pipe 115 are provided inside the valve core 102. One end of the first pipe 114 is provided at the bottom of the valve core 102, and the other end of the first pipe 114 is located at the upper end of the valve core 102. One end of the second pipe 115 is provided at the bottom of the valve core 102, and the other end of the second pipe 115 is located at the The lower end of the valve core 102, the surface of the valve core 102 is also provided with a first groove 116 and a second groove 117, the first groove 116 is arranged at the upper end of the valve core 102 and is communicated with the first pipe 114, the second groove 117 is arranged at the lower end of the valve core 102 and is communicated with the second pipe 115, the lubrication component is arranged below the second sealing tube 105, the valve core 102 is rotated, the position of the opening 113 is adjusted, the flow rate of the internal liquid is controlled, and the lubricating oil is injected into the bottom of the second sealing tube 105, the lubricating oil enters the valve core 102 through the first pipe 114 and the second pipe 115, and flows to the valve core 102 and the first pipe 114 and the second pipe 115 through the first groove 116 and the second groove 117, and the valve core 102 is rotated so that the lubricating oil is mixed and applied to the inner walls of the first pipe 114 and the second pipe 115.

[0022] Among them, the fixed tube 109 is fixedly connected to the second sealing tube 105 and is located below the second sealing tube 105, one end of the connecting tube 107 is detachably connected to the sealing tube, and the other end of the sealing tube is fixedly connected to the box body 106, one end of the four sliding rods 110 is slidably connected to the fixed tube 109, and the other end of the four sliding rods 110 is fixedly connected to the sealing plate 112 and is located below the second sealing tube 105, the pump body 108 is connected to the connecting tube 107 and is located at one end of the connecting tube 107, under normal conditions, the sealing plate 112 closes the fixed tube 109, and the lubricating oil inside the box body 106 is passed into the fixed tube 109 through the pump body 108, and the lubricating oil lifts the sealing plate 112, so that the lubricating oil enters the valve core 102 through the first pipeline 114 and the second pipeline 115.

[0023] Secondly, the limit block 111 is fixedly connected to the valve core 102 and is located below the valve core 102. The limit block 111 limits the moving position of the sealing plate 112, so that a gap is left between the sealing plate 112 and the valve core 102 and the second sealing tube 105, which facilitates the lubricating oil to enter the valve core 102.

[0024] When using the utility model, the valve core 102 is rotated to adjust the position of the opening 113 to control the flow rate of the internal liquid. Under normal conditions, the sealing plate 112 closes the fixed pipe 109, and the lubricating oil inside the box body 106 is passed into the fixed pipe 109 through the pump body 108. The lubricating oil lifts the sealing plate 112, and the lubricating oil enters the valve core 102 through the first pipe 114 and the second pipe 115, and flows between the valve core 102 and the first pipe 114 and the second pipe 115 through the first groove 116 and the second groove 117. The valve core 102 is rotated to mix the lubricating oil and apply it to the inner walls of the first pipe 114 and the second pipe 115.

[0025] Second embodiment:

[0026] See also Figure 4 , Figure 4 It is an overall structural diagram of the second embodiment of the utility model.

[0027] On the basis of the first embodiment, the utility model provides a lubricated top-driven plug valve, further comprising a rotating assembly, wherein the rotating assembly comprises a limit column 201, a handle 202 and a limit ring 203. Through the arrangement of the above structure, it is convenient to rotate the valve core 102 to control the flow.

[0028] According to this specific embodiment, the rotating component is arranged above the first sealing tube 104, and the valve core 102 is rotated by the rotating component to control the flow rate. At the same time, the lubricating oil inside the first groove 116 and the second groove 117 can be evenly diffused to the inner walls of the first sealing tube 104 and the second sealing tube 105.

[0029] Among them, the limit ring 203 is fixedly connected to the first sealing tube 104 and is located above the first sealing tube 104, the limit column 201 is fixedly connected to the valve core 102 and is located inside the limit ring 203, the handle 202 is slidably connected to the limit column 201 and is located on one side of the limit column 201, and a plurality of slots 204 are evenly arranged on the upper end of the limit ring 203, and the slots 204 are adapted to the handle 202. Pull up the handle 202, and rotate the limit block 111 through the handle 202, so that the valve core 102 rotates accordingly. After the adjustment is completed, the handle 202 is inserted into the slot 204 to prevent the valve core 102 from rotating.

[0030] When using the utility model, the valve core 102 is rotated to adjust the position of the opening 113 to control the flow rate of the internal liquid. Under normal conditions, the sealing plate 112 closes the fixed pipe 109, and the lubricating oil inside the box 106 is passed into the fixed pipe 109 through the pump body 108. The lubricating oil lifts the sealing plate 112, and the lubricating oil enters the valve core 102 through the first pipe 114 and the second pipe 115, and flows between the valve core 102 and the first pipe 114 and the second pipe 115 through the first groove 116 and the second groove 117. The handle 202 is pulled up, and the limit block 111 is rotated by the handle 202 to make the valve core 102 rotate accordingly, so that the lubricating oil is mixed and smeared on the inner walls of the first pipe 114 and the second pipe 115. After the adjustment is completed, the handle 202 is clamped into the clamping groove 204 to prevent the valve core 102 from rotating.

[0031] What is disclosed above is only one or more preferred embodiments of the present application, and cannot be used to limit the scope of rights of the present application. Ordinary technicians in this field can understand that all or part of the processes of implementing the above embodiments and equivalent changes made according to the claims of the present application are still within the scope covered by the present application.

Claims

1. A lubricated top drive plug valve, comprising a pipe body, characterized in that: The valve body also includes a valve core, two fixing rings, a first sealing tube, a second sealing tube and a lubrication assembly, wherein the first sealing tube and the second sealing tube are fixedly connected to the tube body and are located on both sides of the tube body, the valve core is rotatably connected to the tube body and is located inside the first sealing tube and the second sealing tube, an opening is provided in the middle section of the valve core, the two fixing rings are fixedly connected to the valve core and are located at both ends of the valve core, and the two fixing rings are respectively clamped with the first sealing tube and the second sealing tube, a first pipeline and a second pipeline are provided inside the valve core, one end of the first pipeline is provided at the bottom of the valve core, the other end of the first pipeline is located at the upper end of the valve core, one end of the second pipeline is provided at the bottom of the valve core, and the other end of the second pipeline is located at the lower end of the valve core, a first groove and a second groove are further provided on the surface of the valve core, the first groove is provided at the upper end of the valve core and is communicated with the first pipeline, the second groove is provided at the lower end of the valve core and is communicated with the second pipeline, and the lubrication assembly is provided below the second sealing tube.

2. The lubricated top drive plug valve according to claim 1, characterized in that: The lubrication assembly includes a box body, a connecting pipe, a pump body, a fixed pipe, four sliding rods and a sealing plate. The fixed pipe is fixedly connected to the second sealing pipe and is located below the second sealing pipe. One end of the connecting pipe is detachably connected to the sealing pipe, and the other end of the sealing pipe is fixedly connected to the box body. One end of the four sliding rods is slidably connected to the fixed pipe, and the other end of the four sliding rods is fixedly connected to the sealing plate and is located below the second sealing pipe. The pump body is connected to the connecting pipe and is located at one end of the connecting pipe.

3. The lubricated top drive plug valve according to claim 2, characterized in that: The lubrication assembly further comprises a limit block, which is fixedly connected to the valve core and is located below the valve core.

4. The lubricated top drive plug valve according to claim 3, characterized in that: The lubricated top drive plug valve further comprises a rotating assembly, and the rotating assembly is arranged above the first sealing tube.

5. The lubricated top drive plug valve according to claim 4, characterized in that: The rotating assembly includes a limit column, a handle and a limit ring. The limit ring is fixedly connected to the first sealing tube and is located above the first sealing tube. The limit column is fixedly connected to the valve core and is located inside the limit ring. The handle is slidably connected to the limit column and is located on one side of the limit column. A plurality of grooves are evenly arranged on the upper end of the limit ring, and the grooves are adapted to the handle.

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