Electric linkage valve operating device

Abstract

Disclosed is an electric linkage valve operating device, comprising a centering clamping device (3), a torque amplification speed reduction device (2) and a driving device (1); the centering clamping device (3) comprises a base (35) and a plurality of clamping members, the plurality of clamping members being arranged around the periphery of the base (35); a splined connecting hole is provided in the center of the base (35); a head end of the torque amplification speed reduction device (2) is provided with a splined connector (21) for fitting connection to the connecting hole, while a tail end of the torque amplification speed reduction device (2) is in transmission connection with the driving device (1). The centering clamping device adapts to a handle of a valve and the torque amplification speed reduction device increases the torque of the driving device, so as to electrically open and close the valve, being convenient to operate and effectively saving manpower and material resources.

Description

An electric linkage valve operating device Technical Field

[0001] The present invention relates to the technical field of electric operation of manual valves, and in particular to an electric linkage valve operating device that can be used on pipeline sites, especially for operating large manual valves on pipeline sites or in valve manufacturers. Background Art

[0002] The handwheel, handle and valve stem of manual valves are basic components in the piping system that can control flow, pressure, flow rate, long-term installation in the open air, valve not being opened for a long time, dust accumulation, pressure buildup, large pressure difference and temperature gradient at both ends, which may lead to difficulty in opening and closing the valve.

[0003] Valve torque refers to the force or torque required to open or close the valve. When closing the valve, a certain sealing pressure ratio must be established between the opening and closing parts and the valve seat. At the same time, the friction between the valve stem and packing, between the threads of the valve stem and nut, at the support of the valve stem end, and other friction points must be overcome. Therefore, a certain closing force and closing torque must be applied. In addition, the opening and closing force and opening and closing torque required for the valve vary during the opening and closing process, with the maximum value occurring at the final moment of closing or the initial moment of opening. Some existing medium and large manual valves on site do not have the function of an electric switch, and manually turning them is extremely time-consuming and labor-intensive. Especially in the face of some emergency situations, it is difficult to open and close the valve in a timely manner, affecting the safe operation of the pipeline system.

[0004] Existing electric valve switches are mainly used in electronic valves. The electronic switch is installed as a whole on the valve seat. This type of electronic valve has high cost, one valve is equipped with one electronic device, and has low adaptability.

[0005] Summary of the Invention

[0006] The purpose of the present invention is to provide an operating device that can be matched with an existing manual valve to achieve electric opening and can be matched with valves of various specifications.

[0007] To achieve the above-mentioned object, the present invention proposes an electric linkage valve operating device, comprising a centering clamping device, a torque amplifying and reducing device, and a driving device;

[0008] The centering clamping device includes a base and multiple clamping parts. The multiple clamping parts are arranged around the outer circumference of the base. A spline connection hole is preset in the center of the base. The head end of the torque amplification and reduction device is provided with a spline connector that cooperates with the connection hole. The tail end of the torque amplification and reduction device is connected to the drive device for transmission.

[0009] Furthermore, the driving device is a gun drill capable of realizing forward and reverse switching, and an operating handle is installed on the gun drill.

[0010] Furthermore, the torque amplifying and reducing device includes a planetary gear set, an internal gear box housing and a connector;

[0011] The inner surface of the inner gear box housing is provided with teeth. The planetary gear set includes a sun gear and three planetary gears. The three planetary gears are arranged at equal intervals around the sun gear, and the three planetary gears are all engaged with the sun gear and the inner surface teeth of the inner gear box housing; the planetary gears are fixed to the inner surface of the inner gear box housing facing the drive device through bearings, and the sun gear is connected to the output shaft of the drive device through a transmission shaft; the connecting head is fixed to the outer surface of the inner gear box housing facing the centering clamping device.

[0012] Furthermore, there are three clamping members, which are distributed in a triangular shape; three arms for connecting the clamping members extend outward from the base in a Y shape.

[0013] Furthermore, the support arm is detachably connected to the body of the base, a plurality of connection ports are provided at equal intervals on the side edge of the body, and the end of the support arm is detachably fixed to the connection port.

[0014] Furthermore, the clamping member includes a threaded toggle rod, a clamping nut, a push block, a linkage rod and a clamping claw;

[0015] The clamping jaw is connected to the support arm through a toggle rod. The surface of the toggle rod is provided with a thread. The clamping nut is screwed on the toggle rod. The push block is sleeved on the toggle rod. The bottom of the clamping nut is connected to the upper surface of the push block through a bearing. The bottom of the push block is connected to the two sides of the clamping jaw through two linkage rods.

[0016] Furthermore, the support arm is a telescopic support arm.

[0017] Furthermore, the retractable support arm includes a front arm and a rear arm;

[0018] A guide rod is provided at the tail end of the forearm, and a telescopic spring is sleeved on the guide rod; a slot is provided at the upper middle part of the rear arm, and a socket is provided at the bottom of the slot, the tail end of the forearm is inserted into the slot, and the end of the guide rod is inserted into the socket; the two ends of the telescopic spring are fixedly connected to the forearm and the rear arm respectively.

[0019] Further, the diameter of the forearm is smaller than the inner diameter of the slot;

[0020] When the spring is in an unstressed state, the guide rod is partially inserted into the insertion hole, and a certain movable spacing is reserved between the end of the guide rod and the bottom of the insertion hole.

[0021] Furthermore, it also includes a triangular connecting seat, which has the same structure as the base and is Y-shaped. The three corners of the triangular connecting seat are provided with spline protrusions, and each protrusion is plugged and fixed with a centering clamping device; the middle part of the triangular connecting seat is provided with a spline hole, which is plugged and fixed with the spline connector of the torque amplification and reduction device.

[0022] Compared with the prior art, the advantages of the present invention are:

[0023] 1. The electric linkage valve operating device of the present invention adapts the valve handle through the centering clamping device and amplifies the torque of the driving device through the torque amplification and reduction device, thereby realizing the electric drive switching of the valve, which is convenient to operate and effectively saves manpower and material resources.

[0024] 2. The torque amplification and reduction device of the present invention effectively matches the driving device and the centering clamping device to amplify the torque of the driving device. Even if it is applied to large valves, the electric screwing of the valve can be easily achieved through traditional gun drilling in the later stage.

[0025] 3. The centering clamping device of the present invention adopts a triangular clamping design, which ensures stability after being fixed to the traditional valve handle.

[0026] 4. The base and support arm in the centering clamping device of the present invention are detachable structures, so as to accommodate valve devices of various structures; the support arm adopts a retractable structure, and when facing valve devices of various specifications, the support arm is retracted to achieve fixation with the valve handle.

[0027] 5. The centering clamping device of the present invention can be provided in three groups, and the three groups are connected through a triangular connecting seat, so that at the connection point of the valve handle, each contact point has three clamping claws to form a stable grasping structure, effectively preventing side slip and ensuring effective transmission of force. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] FIG1 is a schematic diagram of the overall structure of the electric linkage valve operating device in Example 1 of the present invention.

[0029] FIG2 is a schematic structural diagram of a valve in an embodiment of the present invention.

[0030] FIG3 is an exploded view of the support arm and the base in Example 2 of the present invention.

[0031] FIG4 is a cross-sectional view of the telescopic support arm in embodiment 3 of the present invention. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be further described below.

[0033] Example 1:

[0034] The present invention proposes an electric linkage valve operating device to solve the problem that traditional valves need to be opened and closed manually, which is time-consuming and labor-intensive. As shown in Figure 1, it specifically includes the following structures: a centering clamping device 3, a torque amplification and reduction device 2, and a driving device 1;

[0035] The centering clamping device 3 includes a base 35 and three clamping members. The base 35 has three arms extending outward for connecting the clamping members, forming a Y shape. A clamping member is welded and fixed at the three end points of the Y-shaped arm. Based on this, in this embodiment, the number of clamping members is three, and the three clamping members are distributed in a triangular shape; after the three clamping members and the valve handle are fixed, a triangular stable structure is formed to ensure the stability of the connection.

[0036] The cam 32 is screwed onto the cam 34 and the push block 32 is sleeved on the cam 34. The bottom of the cam 32 is connected to the upper surface of the push block 32 through a bearing. The bottom of the push block 32 is connected to the two sides of the cam 31 through two linkage rods. As shown in FIG2 , the conventional valve handle 4 includes an outer ring 41 and at least three reinforcing ribs 42 located inside. At this time, if clockwise rotation is required, the jaws 31 are fixed to one side of the reinforcing ribs, such as points a, b, and c in FIG2 . The limiting effect of the reinforcing ribs 42 is used to prevent sliding between the jaws 31 and the outer ring. If counterclockwise vibration is required, the cam 32 is fixed to the reinforcing ribs 42. for the opening and closing of the jaws 31, the use of the clamping nut 33 on the toggle rod 34 is rotated, thereby driving the push block 32 up and down, even with the linkage rod to drive the opening and closing of the jaws 31, to achieve clamping and loosening between the valve handle 4.

[0037] In this embodiment, as shown in Figure 1, a spline connection hole is preset in the center of the base 35, and the head end of the torque amplification and reduction device 2 is provided with a spline connector 21 that cooperates with the connection hole, and the tail end of the torque amplification and reduction device 2 is transmission-connected to the drive device 1.

[0038] The torque amplification and reduction device 2 includes a planetary gear set 24, an inner gear box housing 25 and a connector; the inner surface of the inner gear box housing 25 is provided with teeth, and the planetary gear set 24 includes a sun gear and three planetary gears, and the three planetary gears are arranged at equal intervals around the sun gear, and the three planetary gears are all engaged with the sun gear and the inner surface teeth of the inner gear box housing 25; the planetary gears are fixed to the inner surface of the inner gear box housing 25 facing the drive device 1 through bearings, and the sun gear is connected to the output shaft of the drive device 1 through a transmission shaft; the connector is fixed to the outer surface of the inner gear box housing 25 facing the centering clamping device 3.

[0039] The sun gear is driven to rotate by the driving device 1, thereby driving the rotation of the planetary gear, and the meshing action of the planetary gear and the inner gear box housing 25 is utilized to further drive the rotation of the inner gear box housing 25, thereby effectively achieving the effect of amplifying the torque of the driving device 1 to drive the opening and closing of the large valve.

[0040] In this embodiment, a limit block 22 is provided on the outside of the inner gear box housing 25 , and a fixing cable 23 is connected to the limit block 22 .

[0041] In this embodiment, the driving device 1 is a gun drill that can realize forward and reverse switching, and an operating handle 16 is installed on the gun drill for easy holding; the gun drill is a traditional gun drill, including a gun-type housing 11, a driving motor 12, a forward and reverse button 13, a power button 14 and a torque setting knob 15.

[0042] Example 2:

[0043] Example 2 has a similar overall structure to Example 1, as shown in Figure 3 . The difference lies in the detachable connection between the support arm 351 and the base body 352. Multiple connection ports are evenly spaced along the side of the base body. The connection between the two can be an interference fit or a snap-on fastening. The end of the support arm is detachably secured to the connection port. This allows for adjustable position of the support arm relative to the base, thereby accommodating valve handles with varying rib positions.

[0044] Example 3:

[0045] Example 3 has a similar overall structure to Example 1, differing technically in that, as shown in FIG4 , the support arm is a telescopic support arm. The telescopic support arm comprises a front arm 5 and a rear arm 6. A guide rod 51 is provided at the rear end of the front arm 5, onto which a telescopic spring 7 is sleeved. A slot is defined in the upper-middle portion of the rear arm 6, and a socket is defined at the bottom of the slot. The rear end of the forearm is inserted into the slot, and the end of the guide rod 51 is inserted into the socket. The ends of the telescopic spring 7 are fixedly connected to the front arm 5 and rear arm 6, respectively. The diameter of the forearm 5 is smaller than the inner diameter of the slot. When the spring 7 is unloaded, the guide rod 51 is partially inserted into the socket, and a certain clearance is reserved between the end of the guide rod 51 and the bottom of the socket. During operation, the length of the support arm is adjusted manually by pulling the rear arm 6 relative to the front arm 5. This structure can securely connect the centering clamping device to valve handles of various sizes.

[0046] Example 4:

[0047] The overall structure of Example 4 is similar to that of Example 1, and the difference lies in the following: it also includes a triangular connecting seat, which has the same structure as the base and is Y-shaped. The three corners of the triangular connecting seat are provided with spline protrusions, and each protrusion is plugged and fixed with a centering clamping device; the middle part of the triangular connecting seat is provided with a spline hole, which is plugged and fixed with the spline connector of the torque amplification and reduction device. At this time, the three clamping claws of each centering clamping device are respectively fixed to the reinforcement ribs of the rice noodle handle and the outer rings on both sides of the reinforcement ribs, forming a completely stable triangular structure that will not slide; the other two groups of centering clamping devices are also provided in the same way, and the three groups of centering clamping devices form a triangular stable structure, which are then fixed by the triangular connecting seat, and then driven to rotate by the torque amplification and reduction device 2 and the driving device 1, thereby realizing stable force transmission.

[0048] The above description is merely a preferred embodiment of the present invention and does not limit the present invention in any way. Any person skilled in the art who, without departing from the scope of the present invention, makes any equivalent substitution, modification, or other changes to the technical solution and technical content disclosed in the present invention shall be deemed to be within the scope of the present invention and still fall within the scope of protection of the present invention.

Claims

1. An electric linkage valve operating device, characterized in that: It includes a centering clamping device, a torque amplifying and reducing device, and a driving device; The centering clamping device includes a base and multiple clamping parts, and the multiple clamping parts are arranged around the outer circumference of the base. A spline connection hole is preset at the center of the base. The head end of the torque amplification and reduction device is provided with a spline connector that cooperates with the connection hole, and the tail end of the torque amplification and reduction device is transmission-connected to the drive device.

2. The electric linkage valve operating device according to claim 1, characterized in that: The driving device is a gun drill capable of realizing forward and reverse switching, and an operating handle is installed on the gun drill.

3. The electric linkage valve operating device according to claim 1, characterized in that: The torque amplifying and reducing device includes a planetary gear set, an internal gear box housing and the connecting head; The inner surface of the inner gear box housing is provided with teeth, and the planetary gear set includes a sun gear and three planetary gears, the three planetary gears are arranged at equal intervals around the sun gear, and the three planetary gears are all engaged with the sun gear and the inner surface teeth of the inner gear box housing; the planetary gears are fixed to the inner surface of the inner gear box housing facing the drive device through bearings, and the sun gear is connected to the output shaft of the drive device through a transmission shaft; the connecting head is fixed to the outer surface of the inner gear box housing facing the centering clamping device.

4. The electric linkage valve operating device according to claim 1, characterized in that: There are three clamping members, which are distributed in a triangular pattern. Three arms for connecting the clamping members extend outward from the base, forming a Y shape.

5. The electric linkage valve operating device according to claim 4, characterized in that: The support arm is detachably connected to the body of the base, a plurality of connection ports are evenly spaced along the side edge of the body, and the ends of the support arm are detachably fixed to the connection ports.

6. The electric linkage valve operating device according to claim 4, characterized in that: The clamping member includes a threaded toggle rod, a clamping nut, a push block, a linkage rod and a clamping claw; The clamping claw is connected to the support arm through the toggle rod, the surface of the toggle rod is provided with a thread, the clamping nut is screwed on the toggle rod, the pushing block is sleeved on the toggle rod, and the clamping claw is connected to the support arm through the toggle rod. The bottom of the tightening nut is connected to the upper surface of the pushing block through a bearing, and the bottom of the pushing block is respectively connected to the two sides of the clamping claw through the two linkage rods.

7. The electric linkage valve operating device according to claim 4, characterized in that: The support arm is a telescopic support arm.

8. The electric linkage valve operating device according to claim 7, characterized in that: The retractable support arm includes a front arm and a rear arm; A guide rod is provided at the tail end of the forearm, and a telescopic spring is sleeved on the guide rod; a slot is provided at the upper middle part of the rear arm, and a socket is provided at the bottom of the slot, the tail end of the forearm is inserted into the slot, and the end of the guide rod is inserted into the socket; the two ends of the telescopic spring are fixedly connected to the forearm and the rear arm respectively.

9. The electric linkage valve operating device according to claim 8, characterized in that: The diameter of the forearm is smaller than the inner diameter of the slot; When the spring is in an unstressed state, the guide rod is partially inserted into the insertion hole, and a certain movable spacing is reserved between the end of the guide rod and the bottom of the insertion hole.

10. The electric linkage valve operating device according to claim 5, characterized in that: It also includes a triangular connecting seat, which has the same structure as the base and is Y-shaped. The three corners of the triangular connecting seat are provided with spline protrusions, and each of the protrusions is plugged and fixed with one of the centering clamping devices; the middle part of the triangular connecting seat is provided with a spline hole, and the spline hole is plugged and fixed with the spline connector of the torque amplification and reduction device.

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