Valve pneumatic actuator

Abstract

The utility model relates to the technical field of valve actuators, in particular to a valve pneumatic actuator which comprises a shell, a rotating shaft, a rotating ring, a fixing block, a fixing shaft, an upper connecting rod, a rotating rod and an upper connecting plate, the fixing block is detachably connected with the rotating shaft, the fixing shaft is detachably connected with the fixing block and penetrates through the fixing block, one end of the upper connecting rod is rotatably connected with the fixing shaft, and the other end of the upper connecting rod is rotatably connected with the rotating ring. The rotating rod is rotationally connected with the upper connecting rod, the upper connecting plate is detachably connected with the rotating rod and located at the upper end of the rotating rod, the air cylinder is started to pull the connecting block, the upper connecting plate and the lower connecting plate, the rotating rod is pulled at the same time, the upper connecting rod and the lower connecting rod pull the fixing shaft, and therefore the fixing block is pulled to drive the rotating shaft to rotate. Therefore, the problems that noise and inevitable abrasion are generated after the gear rack is used for a long time by the pneumatic actuator of the valve, and the maintenance cost is high after the pneumatic actuator is used for a long time are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of valve actuators, in particular to a valve pneumatic actuator. Background Art

[0002] A pneumatic valve is a device that uses pneumatic devices to control the opening and closing of a valve. Traditional pneumatic valve actuators usually use a cylinder to push a rack to drive the rack to open and close the valve. In medium and large valves, this structure will cause great wear on the rack and gear. If the rack breaks or cannot rotate during operation, it will have serious consequences for subsequent work processes.

[0003] To solve the above problems, the prior art patent (CN209959980U) discloses a pneumatic valve actuator, which sprays lubricating oil on the rack and the mating teeth when the pump body reaches the meshing range of the rack and the mating teeth to reduce the wear of the gear rack.

[0004] However, in the above-mentioned prior art, the valve pneumatic actuator will generate noise and inevitable wear after the gear rack is used for a long time, and the maintenance cost of long-term use is high. Utility Model Content

[0005] The utility model aims to provide a valve pneumatic actuator, which solves the technical problems in the prior art that the valve pneumatic actuator will generate noise and inevitable wear of the gear rack after long-term use, and the maintenance cost is high after long-term use.

[0006] To achieve the above-mentioned purpose, the utility model adopts a valve pneumatic actuator, including a shell, a rotating shaft, a rotating ring and two groups of rotating components, each group of the rotating components includes a fixed block, a fixed shaft, an upper connecting rod, a rotating rod, an upper connecting plate and auxiliary components, the outer wall of the rotating ring is detachably connected to the shell and is located on the surface of the shell, the rotating shaft is rotatably connected to the rotating ring and is located on the inner wall of the rotating ring, the fixed block is detachably connected to the rotating shaft and is located in the middle of the rotating shaft, the fixed shaft is detachably connected to the fixed block and passes through the fixed block, one end of the upper connecting rod is rotatably connected to the fixed shaft and is located at the upper end of the fixed shaft, the rotating rod is rotatably connected to the upper connecting rod and is located at the other end of the upper connecting rod, and the upper connecting plate is detachably connected to the rotating rod and is located at the upper end of the rotating rod.

[0007] Wherein, each group of the rotating components also includes a lower connecting rod, a lower connecting plate and a connecting block, one end of the lower connecting rod is rotatably connected to the fixed shaft and is located at the lower end of the rotating rod, and the other end of the lower connecting rod is rotatably connected to the rotating rod, the lower connecting plate is detachably connected to the rotating rod and is located at the lower end of the rotating rod, and the connecting block is fixedly connected to the upper connecting plate and is located between the upper connecting plate and the lower connecting plate.

[0008] Among them, the auxiliary components include telescopic rod 1, spring 1, telescopic rod 2 and spring 2, one end of the telescopic rod 1 is detachably connected to the connecting block and is located on one side of the connecting block, one end of the spring 1 is detachably connected to the connecting block and wraps the telescopic rod 1, one end of the telescopic rod 2 is detachably connected to the connecting block and is located on one side of the connecting block, and one end of the spring 2 is detachably connected to the connecting block and wraps the telescopic rod 2.

[0009] Among them, the auxiliary components also include a cylinder, a fixing plate, a refueling port and a refueling cap, the cylinder is detachably connected to the shell and is located inside the shell, the fixing plate is fixedly connected to the shell and is located inside the shell, and the output end of the cylinder passes through the fixing plate and is detachably connected to the connecting block, the refueling port is fixedly connected to the shell and is located above the shell, and the refueling cap is threadedly connected to the refueling port and is located above the refueling port.

[0010] Wherein, the valve pneumatic actuator also includes an oil drain port, an oil drain cover and a protective cover, the oil drain port is fixedly connected to the shell and is located below the shell, the oil drain cover is threadedly connected to the oil drain port and is located below the oil drain port, and the protective cover is detachably connected to the shell and is located on the outer surface of the shell.

[0011] The utility model provides a valve pneumatic actuator, the outer wall of the rotating ring is detachably connected to the shell and is located on the surface of the shell, the rotating shaft is rotatably connected to the rotating ring and is located on the inner wall of the rotating ring, the fixed block is detachably connected to the rotating shaft and is located in the middle of the rotating shaft, the fixed shaft is detachably connected to the fixed block and passes through the fixed block, one end of the upper connecting rod is rotatably connected to the fixed shaft and is located at the upper end of the fixed shaft, the rotating rod is rotatably connected to the upper connecting rod and is located at the other end of the upper connecting rod, and the upper connecting plate is detachably connected to the rotating shaft and is located in the middle of the rotating shaft. The rotating rod is disassembled and connected and is located at the upper end of the rotating rod. The cylinder is started to pull the connecting block, and the upper connecting plate and the lower connecting plate are pulled at the same time. The upper connecting plate and the lower connecting plate pull the rotating rod to drive one end of the upper connecting rod and the lower connecting rod to move. The other end of the upper connecting rod and the lower connecting rod will pull the fixed block to rotate, thereby driving the rotating shaft to rotate. This method can effectively solve the problem that the valve pneumatic actuator will generate noise and inevitable wear after long-term use of gear racks, and the maintenance cost is high for long-term use. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] 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.

[0013] Figure 1 It is a structural schematic diagram of the first embodiment of the utility model.

[0014] Figure 2 It is a partial structural schematic diagram of the first embodiment of the utility model.

[0015] Figure 3 This is the first embodiment of the utility model Figure 2 Side view of.

[0016] Figure 4 This is the first embodiment of the utility model Figure 2 Top view of the .

[0017] Figure 5 It is a side view of the second embodiment of the utility model.

[0018] 101-housing, 102-rotating shaft, 103-rotating ring, 104-fixed block, 105-fixed shaft, 106-upper connecting rod, 107-rotating rod, 108-upper connecting plate, 109-lower connecting rod, 110-lower connecting plate, 111-connecting block, 112-telescopic rod one, 113-spring one, 114-telescopic rod two, 115-spring two, 116-cylinder, 117-fixed plate, 118-fuel filling port, 119-fuel filling cap, 201-oil drain port, 202-oil drain cap, 203-protective cover. DETAILED DESCRIPTION

[0019] 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.

[0020] The first embodiment of the present application is:

[0021] See also Figure 1 to Figure 4 ,in Figure 1 It is a structural schematic diagram of the first embodiment of the utility model. Figure 2 This is a partial structural diagram of the first embodiment of the utility model. Figure 3 This is the first embodiment of the utility model Figure 2 Side view of Figure 4 This is the first embodiment of the utility model Figure 2 Top view of the .

[0022] The utility model provides a valve pneumatic actuator, including a housing 101, a rotating shaft 102, a rotating ring 103, a fixed block 104, a fixed shaft 105, an upper connecting rod 106, a rotating rod 107, an upper connecting plate 108, a lower connecting rod 109, a lower connecting plate 110, a connecting block 111, a telescopic rod 112, a spring 113, a telescopic rod 2 114, a spring 2 115, a cylinder 116, a fixed plate 117, a refueling port 118 and a refueling cap 119. The above scheme solves the problem in the prior art that the valve pneumatic actuator will generate noise and inevitable wear after long-term use of the gear rack, and the maintenance cost is high for long-term use.

[0023] According to this specific embodiment, the outer wall of the rotating ring 103 is detachably connected to the shell 101 and is located on the surface of the shell 101. The rotating shaft 102 is rotatably connected to the rotating ring 103 and is located on the inner wall of the rotating ring 103. The fixed block 104 is detachably connected to the rotating shaft 102 and is located in the middle of the rotating shaft 102. The fixed shaft 105 is detachably connected to the fixed block 104 and penetrates the fixed block 104. One end of the upper connecting rod 106 is rotatably connected to the fixed shaft 105 and is located in the fixed At the upper end of the shaft 105, the rotating rod 107 is rotatably connected to the upper connecting rod 106 and is located at the other end of the upper connecting rod 106. The upper connecting plate 108 is detachably connected to the rotating rod 107 and is located at the upper end of the rotating rod 107. The upper connecting plate 108 drives the rotating rod 107 to move, and the rotating rod 107 drives the upper connecting rod 106 to move. The fixed shaft 105 is pulled by the upper connecting rod 106 to drive the fixed block 104 to move, so that the fixed block 104 drives the rotating shaft 102 to rotate.

[0024] Among them, one end of the lower connecting rod 109 is rotatably connected to the fixed shaft 105 and is located at the lower end of the rotating rod 107, and the other end of the lower connecting rod 109 is rotatably connected to the rotating rod 107, the lower connecting plate 110 is detachably connected to the rotating rod 107 and is located at the lower end of the rotating rod 107, the connecting block 111 is fixedly connected to the upper connecting plate 108 and is located between the upper connecting plate 108 and the lower connecting plate 110, when the connecting block 111 is pulled, the lower connecting plate 110 and the lower connecting rod 109 will be driven, thereby pulling the fixed block 104 to drive the rotating shaft 102 to rotate.

[0025] Secondly, one end of the telescopic rod 112 is detachably connected to the connecting block 111 and is located on one side of the connecting block 111, one end of the spring 113 is detachably connected to the connecting block 111 and wraps the telescopic rod 112, one end of the telescopic rod 2 114 is detachably connected to the connecting block 111 and is located on one side of the connecting block 111, one end of the spring 2 115 is detachably connected to the connecting block 111 and wraps the telescopic rod 2 114, the telescopic rod 112 and the telescopic rod 2 114 assist in fixing the positions of the spring 113 and the spring 2 115, and the spring 113 and the spring 2 115 assist in the reciprocating motion of the connecting block 111.

[0026] At the same time, the cylinder 116 is detachably connected to the shell 101 and is located inside the shell 101, the fixing plate 117 is fixedly connected to the shell 101 and is located inside the shell 101, and the output end of the cylinder 116 passes through the fixing plate 117 and is detachably connected to the connecting block 111, the refueling port 118 is fixedly connected to the shell 101 and is located above the shell 101, the refueling cap 119 is threadedly connected to the refueling port 118 and is located above the refueling port 118, starting the cylinder 116 can pull the connecting block 111 to drive the fixing block 104 to pull the rotating shaft 102 to rotate, and lubricating oil can be added to the connection between the upper connecting rod 106 and the fixed shaft 105 through the refueling port 118 to reduce the wear on the fixed shaft 105.

[0027] A valve pneumatic actuator using the present embodiment is provided with a housing 101, a rotating shaft 102, a rotating ring 103, a fixed block 104, a fixed shaft 105, an upper connecting rod 106, a rotating rod 107, an upper connecting plate 108, a lower connecting rod 109, a lower connecting plate 110, a connecting block 111, a telescopic rod 112, a spring 113, a telescopic rod 2 114, a spring 2 115, a cylinder 116, a fixed plate 117, a refueling port 118 and a refueling cap 119. The outer wall of the rotating ring 103 is detachably connected to the housing 101 and is located on the surface of the housing 101. The rotating shaft 102 is rotatably connected to the rotating ring 103 and is located on the inner wall of the rotating ring 103. The fixed block 104 is detachably connected to the rotating shaft 102 and is located in the middle of the rotating shaft 102. The fixed shaft 105 is detachably connected to the fixed block 104 , and passes through the fixed block 104, one end of the upper connecting rod 106 is rotatably connected to the fixed shaft 105 and is located at the upper end of the fixed shaft 105, the rotating rod 107 is rotatably connected to the upper connecting rod 106 and is located at the other end of the upper connecting rod 106, the upper connecting plate 108 is detachably connected to the rotating rod 107 and is located at the upper end of the rotating rod 107, the cylinder 116 is started to pull the connecting block 111 to move, and the upper connecting plate 108 and the upper connecting rod 106 are pulled by the connecting block 111, and at the same time, the fixed shaft 105 is pulled to drive the fixed block 104 to rotate around the center of the rotating shaft 102 to drive the rotating shaft 102 to rotate, thereby solving the technical problems that the valve pneumatic actuator will generate noise and inevitable wear after long-term use of gear racks and pinions, and the maintenance cost is high for long-term use.

[0028] The second embodiment of the present application is:

[0029] Based on the first embodiment, please refer to Figure 5 , Figure 5 It is a side view of the second embodiment of the utility model.

[0030] The utility model provides a valve pneumatic actuator, which also includes an oil drain port 201, an oil drain cover 202 and a protective sleeve 203. The above solution solves the problem in the prior art that excessive lubricating oil cannot be discharged after being added to the valve pneumatic actuator and there is a lack of protective measures.

[0031] Among them, the oil drain port 201 is fixedly connected to the shell 101 and is located below the shell 101. The oil drain cover 202 is threadedly connected to the oil drain port 201 and is located below the oil drain port 201. The protective cover 203 is detachably connected to the shell 101 and is located on the outer surface of the shell 101. When excessive lubricating oil is added, the oil drain cover 202 can be opened to discharge the lubricating oil from the oil drain port 201. Adding the protective cover 203 on the surface of the shell 101 can protect the valve pneumatic actuator.

[0032] A valve pneumatic actuator according to the present embodiment is provided with an oil drain port 201, an oil drain cover 202 and a protective sleeve 203. When an excessive amount of lubricating oil is added, the oil drain cover 202 can be opened to discharge the lubricating oil from the oil drain port 201. The protective sleeve 203 plays a role in protecting the valve pneumatic actuator, thereby solving the problem of being unable to discharge excessive lubricating oil after it is added to the valve pneumatic actuator and the lack of protective measures.

[0033] The above disclosure is only a preferred embodiment of the present invention, and certainly cannot be used to limit the scope of rights of the present invention. Ordinary technicians in this field can understand that all or part of the processes of the above embodiment and equivalent changes made according to the claims of the present invention still fall within the scope covered by the utility model.

Claims

1. A valve pneumatic actuator, comprising a housing, a rotating shaft and a rotating ring, wherein the outer wall of the rotating ring is detachably connected to the housing and is located on the surface of the housing, and the rotating shaft is rotatably connected to the rotating ring and is located on the inner wall of the rotating ring, characterized in that: It also includes two groups of rotating components, each group of the rotating components includes a fixed block, a fixed shaft, an upper connecting rod, a rotating rod, an upper connecting plate and an auxiliary component, the fixed block is detachably connected to the rotating shaft and is located in the middle of the rotating shaft, the fixed shaft is detachably connected to the fixed block and passes through the fixed block, one end of the upper connecting rod is rotatably connected to the fixed shaft and is located at the upper end of the fixed shaft, the rotating rod is rotatably connected to the upper connecting rod and is located at the other end of the upper connecting rod, and the upper connecting plate is detachably connected to the rotating rod and is located at the upper end of the rotating rod.

2. The valve pneumatic actuator according to claim 1, characterized in that: Each group of the rotating components also includes a lower connecting rod, a lower connecting plate and a connecting block, one end of the lower connecting rod is rotatably connected to the fixed shaft and is located at the lower end of the rotating rod, and the other end of the lower connecting rod is rotatably connected to the rotating rod, the lower connecting plate is detachably connected to the rotating rod and is located at the lower end of the rotating rod, and the connecting block is fixedly connected to the upper connecting plate and is located between the upper connecting plate and the lower connecting plate.

3. The valve pneumatic actuator according to claim 2, characterized in that: The auxiliary component includes telescopic rod 1, spring 1, telescopic rod 2 and spring 2, one end of the telescopic rod 1 is detachably connected to the connecting block and is located on one side of the connecting block, one end of the spring 1 is detachably connected to the connecting block and wraps the telescopic rod 1, one end of the telescopic rod 2 is detachably connected to the connecting block and is located on one side of the connecting block, and one end of the spring 2 is detachably connected to the connecting block and wraps the telescopic rod 2.

4. The valve pneumatic actuator according to claim 2, characterized in that: The auxiliary components also include a cylinder, a fixing plate, a refueling port and a refueling cap. The cylinder is detachably connected to the shell and is located inside the shell. The fixing plate is fixedly connected to the shell and is located inside the shell. The output end of the cylinder passes through the fixing plate and is detachably connected to the connecting block. The refueling port is fixedly connected to the shell and is located above the shell. The refueling cap is threadedly connected to the refueling port and is located above the refueling port.

5. The valve pneumatic actuator according to claim 1, characterized in that: The valve pneumatic actuator also includes an oil drain port, an oil drain cover and a protective sleeve. The oil drain port is fixedly connected to the housing and is located below the housing. The oil drain cover is threadedly connected to the oil drain port and is located below the oil drain port. The protective sleeve is detachably connected to the housing and is located on the outer surface of the housing.

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