Electric valve controller

Abstract

The utility model discloses an electrically operated valve controller, which is characterized in that one side of a cover body is movably hinged to a shell, so that the cover body can swing relative to the shell between a position where an opening of the shell is opened and a position where the opening of the shell is closed, and meanwhile, a buckling part is arranged on the other side of the cover body; and the cover body is detachably buckled on the shell through the buckling part or detachably fixed on the shell through a bolt which is convexly provided with a hand screwing part, so that the cover body can close the opening of the shell. When an actuating mechanism in the shell needs to be maintained, the buckling part is directly pulled by a hand to release the hooking relation of the buckling part to the shell, or the bolt can be screwed and unscrewed by operating the hand screwing part, and a special tool is not needed in the whole disassembly and assembly process, so that the shell and the cover body are conveniently and quickly assembled and disassembled, and the maintenance efficiency is improved. Maintenance work in special occasions such as high-altitude operation is facilitated, and maintenance efficiency and operation safety can be greatly improved.

Description

Technical Field

[0001] The utility model relates to the field of valve control, in particular to an electric valve controller. Background Art

[0002] An electric valve controller (or electric valve actuator) is a control mechanism that uses electricity as its main energy source and is used to drive the valve to open and close. Existing electric valve controllers generally include a housing and an actuator disposed within the housing. The actuator generally includes a bracket, a motor mounted on the bracket, a gear set, a control circuit board, and a rotating shaft. The motor forms a transmission connection with the rotating shaft through the gear set, so that the motor drives the rotating shaft to rotate through the gear set and the rotating shaft drives the pivot shaft of the valve to rotate, thereby controlling the opening and closing of the valve. The housing mainly protects and bears the load for the actuator and generally includes a housing and a cover that fit together. The housing and the cover form a storage space for installing the actuator. The edge of the housing is formed with multiple vertical screw holes, and the cover is formed with bolt holes at the positions of the screw holes of the housing. Multiple countersunk bolts are respectively fastened together at the corresponding bolt holes and screw holes.

[0003] While existing electric valve controllers meet basic requirements, they still have drawbacks. For example, the housing and cover are connected by multiple countersunk bolts, requiring tools such as screwdrivers or countersunk wrenches for assembly and disassembly. For special applications like high-altitude work, maintenance personnel find it inconvenient to carry and use specialized tools, and they must use specialized tools to loosen and tighten multiple bolts one by one, which is inefficient. Utility Model Content

[0004] The main purpose of the utility model is to provide an electric valve controller, aiming to solve the technical problems of the prior art electric valve controller that the housing and cover need to be disassembled using special tools, resulting in inconvenient disassembly and low efficiency.

[0005] To achieve the above-mentioned purpose, the utility model proposes an electric valve controller, comprising an outer shell and an actuator installed inside the outer shell, wherein the outer shell comprises a shell body and a cover body, the shell body defines a top opening and a storage space for loading the actuator, one side of the cover body is hinged to the shell body, and the one side of the cover body swings itself between the position of closing and opening the opening through the hinge, and a buckling portion is provided on the other side of the cover body, which is hooked or detachably fixed to the shell body by bolts so that the cover body closes the opening of the shell, and a hand-tightening portion is convexly provided on the outer end of the bolt.

[0006] The technical solution of the utility model movably hinges one side of the cover body to the shell, so that the cover body can swing relative to the shell between the positions of opening and closing the shell opening. At the same time, a buckle portion is provided on the other side of the cover body, and the buckle portion is directly hooked or detachably fixed to the shell by a bolt with a protruding hand-tightening portion, so that the cover body can close the shell opening. When the actuator inside the shell needs to be maintained, the buckle portion is directly pulled by hand to release the hook connection between the buckle portion and the shell, or the bolt can be tightened or loosened by operating the hand-tightening portion. The entire disassembly process does not require the use of special tools, thereby conveniently and quickly achieving assembly and disassembly between the shell and the cover body, facilitating maintenance work in special occasions such as high-altitude operations, and can greatly improve maintenance efficiency and work safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Figure 1 Schematic diagram of the three-dimensional structure of some embodiments of the present invention Figure 1 ;

[0008] Figure 2 Schematic diagram of the three-dimensional structure of some embodiments of the present invention Figure 2 ;

[0009] Figure 3 Schematic diagram of the three-dimensional structure of the cover in the open state of some embodiments of the present invention Figure 1 ;

[0010] Figure 4 Schematic diagram of the three-dimensional structure of the cover in the open state of some embodiments of the present invention Figure 2 ;

[0011] Figure 5 Schematic diagram of the three-dimensional structure of the actuator Figure 1 ;

[0012] Figure 6 Schematic diagram of the three-dimensional structure of the actuator Figure 2 ;

[0013] Figure 7 Schematic diagrams of the planar structures of other embodiments of the present invention.

[0014] The above drawings include the following reference numerals:

[0015] 1. Outer shell; 2. Shell; 21. Clamping part; 211. Protrusion; 212. Accommodating groove; 22. Screw hole; 23. Embedded groove; 3. Cover; 31. Snap-fit ​​part; 311. Barb; 32. Bolt; 33. Tightening part; 331. First rotating part; 332. Second rotating part; 4. Actuator; 41. Bracket; 411. Top plate; 412. Pillar; 413. Bottom plate; 42. Gear set; 43. Rotating shaft; 44. Pivot shaft; 441. Control part; 45. Motor; 5. Accommodating space; 6. Swing arm; 7. Hinge. DETAILED DESCRIPTION

[0016] The following will be combined with the accompanying drawings to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0017] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, top, bottom, inside, outside, vertical, horizontal, longitudinal, counterclockwise, clockwise, circumferential, radial, axial...), then the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0018] In addition, if there are descriptions involving "first" or "second" in the embodiments of the present invention, the descriptions of "first" or "second" are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features specified as "first" or "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that ordinary technicians in this field can implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0019] The utility model provides an electric valve controller.

[0020] In the embodiment of the present utility model, Figures 1 to 6As shown, the electric valve controller includes a housing 1 and an actuator 4 mounted within the housing 1. The housing 1 includes a shell 2 and a cover 3. The housing 2 defines a storage space 5 with an opening at the top for loading the actuator 4. One side of the cover 3 is hinged to the housing 2, and the cover 3 is hinged so that it can swing between a closed and an open position. The other side of the cover 3 is provided with a snap-fit ​​portion 31. The snap-fit ​​portion 31 is removably fixed to the housing 2 by hooking or by a bolt 32. The outer end of the bolt 32 is provided with a hand-tightening portion 33. When maintenance is required on the actuator 4 within the housing 1, the snap-fit ​​portion is directly actuated to release the hook connection between the snap-fit ​​portion and the housing, or the bolt 32 can be tightened or loosened by manually operating the hand-tightening portion 33. The entire assembly and disassembly process does not require the use of special tools, thereby conveniently and quickly achieving assembly and disassembly between the housing 2 and the cover 3, facilitating maintenance work in special occasions such as high-altitude operations, and significantly improving maintenance efficiency and work safety.

[0021] Furthermore, a seal (not shown) is provided at the mating surface of the cover body 3 and the shell 2. After the cover body 3 closes the opening of the shell 2, the mating surface of the shell 2 and the cover body 3 is sealed by the seal, so that the accommodating space 5 forms a sealed space to prevent water or dust from entering the accommodating space 5.

[0022] Specifically, the top surface of the housing 2 is formed with an embedding groove 23. The sealing member is a rubber ring that is partially embedded in the embedding groove 23. When the cover 3 closes the housing 2, the cover 3 seals the rubber ring against the embedding groove 23, thereby sealing the mating surface between the cover 3 and the housing 2. Of course, the embedding groove 23 can also be provided on the cover 3 and opposite to the top surface of the housing 2.

[0023] It is understandable that there are many ways to hinge the cover 3 and the housing 2. In a preferred embodiment, Figure 1 As shown, a swing arm 6 is formed or fixed on one side of one of the cover 3 and the housing 2, and a hinge seat 7 is integrally formed or fixed on the other, and the swing arm 6 is hinged to the hinge seat 7 via a hinge shaft. The swing arm 6 can be made of plastic, metal, or nylon, and can be straight or curved.

[0024] In this embodiment, to enhance the stability of the connection between the fastening portion 31 and the housing 2, a clamping portion 21 is provided on the housing 2 for securing the fastening portion 31. When the cover 3 is swung to the closed position, the fastening portion 31 is hooked onto the clamping portion or secured to the clamping portion 21 via a bolt 32 with a hand-tightening portion 33. The clamping portion 21 primarily prevents abnormal movement of the fastening portion 31, thereby enhancing stability. Optionally, the clamping portion 21 abuts the fastening portion 31 from different lateral directions to achieve a secure fit.

[0025] Specifically, in a preferred embodiment, the clamping portion 21 includes a protrusion 211 protruding from the side of the housing 2. The protrusion 211 is provided with a receiving groove 212 corresponding to the position of the buckling portion 31. The receiving groove 212 limits the buckling portion 31 in the horizontal direction to prevent the buckling portion 31 from moving horizontally. After the cover 3 closes the housing 2, the buckling portion 31 is partially engaged with the receiving groove 212 and is fixed to the receiving groove 212 by a bolt 32 with a hand-tightening portion 33 (such as Figure 1 、 Figure 3 As shown), the shell 2 and the cover 3 are detachably fixed together. Alternatively, the end of the buckle portion 31 has a barb 311 extending toward the shell, and the barb 311 is hooked on the bottom wall of the protrusion 211 (as shown). Figure 7 As shown), the housing 2 and the cover 3 are detachably fixed together. Of course, in order to further ensure the connection strength, the buckle portion can be hooked on the housing and detachably fastened to the housing by bolts.

[0026] In this embodiment, the hand-tightening portion 33 is preferably a structure that is convenient for manual twisting, for example, it can be a butterfly-shaped, wheel-shaped, star-shaped block-shaped structure. The hand-tightening portion 33 can be fixedly installed at the rod end or the middle of the bolt 32. The method of installing it at the rod end will be more reasonable and practical in terms of spatial layout, and there will be no obstruction from surrounding parts, so the rotation will be more convenient.

[0027] In a preferred embodiment, if Figures 1 to 4 As shown, the hand-tightening portion 33 includes a first rotating portion 331 and a second rotating portion 332 radially extending from the rod end of the bolt 32. By manually twisting the first rotating portion 331 and the second rotating portion 332, the hand-tightening portion 33 as a whole drives the bolt 32 to rotate, thereby achieving the fixing and release of the snap-fit ​​portion 31 and the shell 2. It can be understood that the extension length of the first rotating portion 331 and the second rotating portion 332 can be determined according to objective needs. Generally speaking, a larger extension length is more labor-saving.

[0028] It can be understood that the hand-tightening part 33 and the bolt 32 can be an integrally formed structure or fixed to the rod end of the bolt 32. When the integrally formed method is adopted, it has the advantages of convenient molding and high structural strength. When a fixed connection method is adopted, the bolt 32 and the hand-tightening part 33 can be made of the same or different materials. The material can be metal, engineering plastic, nylon, etc. Preferably, the hand-tightening part 33 can be made of materials with good anti-slip effects such as polyvinyl chloride and polyurethane to further achieve the beneficial effect of saving effort during rotation. In addition, a concave or convex structure (not shown) that enhances the friction between the human hand and the hand-tightening part 33 can be provided on the first rotating part 331 and / or the second rotating part 332 to improve the stability of the operation.

[0029] In the above embodiment, the first rotating portion 331 and the second rotating portion 332 are preferably symmetrically arranged. The symmetrical arrangement is ergonomic, and the hand is in a natural state during rotation, which is labor-saving and efficient during twisting.

[0030] In another embodiment, the hand-tightening portion 33 is in the shape of a circular column (not shown). To prevent slipping when a person manually twists the hand-tightening portion 33, an anti-slip structure may be provided on the peripheral wall of the circular columnar hand-tightening portion 33. For example, a structure such as a protrusion, a depression, or axially extending protrusions at circumferential intervals may be provided on the peripheral wall of the hand-tightening portion 33.

[0031] In this embodiment, the fastening portion 31 can be integrally formed with the cover 3 or hinged to the cover 3 via a hinge. Integral molding offers the advantages of ease and cost-effectiveness. Separately manufactured and then hinged together, the fastening portion 31 can be replaced after extended use if it becomes severely deformed or partially broken, without having to discard both the fastening portion 31 and the cover 3.

[0032] In this embodiment, screw holes 22 are provided on the bottom surface of the outer shell 1. The screw holes 22 are for adapting to external valves of different specifications. Three screw holes 22 are preferably provided in each extension direction, and multiple screw holes 22 are spaced apart in the radial direction according to industry standards. This is part of the existing technology and will not be elaborated on.

[0033] It is understandable that the shell 2 and the cover 3 can be made of the same or different materials, such as plastic, nylon or metal, etc., depending on the specific usage requirements.

[0034] The actuator 4 includes a bracket 41 and components such as a motor 45, a gear set 42 and a rotating shaft 43 mounted on the bracket 41. Specifically, the bracket 41 is preferably made of high-strength materials such as aluminum alloy, cast iron or stainless steel to ensure structural strength.

[0035] In this embodiment, the actuator 4 is as follows Figure 5 and Figure 6 As shown, the bracket 41 includes a top plate 411 and a bottom plate 413 spaced apart from each other, and a pillar 412 connected to the top plate 411 and the bottom plate 413, and at least one pillar 412 is provided. In order to enhance stability, the number of pillars 412 can be increased between the edges of the top plate 411 and the bottom plate 413. The gear set 42 can be pivotally arranged between the top plate 411 and the bottom plate 413, and the rotating shaft 43 can be pivotally installed on the top plate 411 and the bottom plate 413. The lower end of the rotating shaft 43 passes downward through the bottom plate 413 and the lower end surface is exposed to the bottom surface of the shell 1 to facilitate connection to the pivot shaft of the external valve (not shown). When the rotating shaft of the motor 45 rotates, the rotating shaft 43 can be driven by the gear set 42 to drive the pivot shaft of the valve to rotate, thereby controlling the opening and closing of the valve.

[0036] Specifically, the number and arrangement of the gears of the gear set 42 can adopt the existing technology, and the number and arrangement of the gear set 42 and the matching relationship between the gears and the motor 45 and the rotating shaft 43 will not be described here.

[0037] In this embodiment, the pivot shaft 44 of one of the gears of the gear set 42 passes upward through the top plate 411, and a control part 441 is provided on the top of the pivot shaft 44. The control part 441 can be a non-circular countersunk hole (typically such as a square countersunk hole or a hexagonal countersunk hole, etc.) or a non-circular columnar structure (such as an outer square columnar structure or an outer hexagonal columnar structure, etc.) provided on the top surface of the pivot shaft 44, or a handle (not shown) provided on the top of the pivot shaft 44. When the cover body 3 is in the position to open the opening of the shell body 2, the user drives the pivot shaft 44 to rotate by using tools such as a hexagonal wrench or a four-angle wrench or directly by hand, so that the gear can be rotated, so that the rotating shaft 43 can be manually driven to rotate in the event of a power outage or damage to the motor 45, so as to control the opening and closing of the valve.

[0038] In the above embodiment, the top plate 411, the support 412 and the bottom plate 413 are independent components, and the three can be connected in sequence through a bolt structure or a snap structure. Figures 5 and 6 As a preferred embodiment, the pillar 412 and the top plate 411 or the pillar 412 and the bottom plate 413 are an integrally formed structure. The integrally formed structure has the advantage of high structural strength.

[0039] In one embodiment of the present invention, the rotating shaft 43 is a stepped shaft with a smaller top and a larger bottom. A gear in the gear set 42 is arranged at a position below the bottom plate 413 of the rotating shaft 43. The gear set 42 has a double-layer gear, the lower layer of which extends downward from the bottom plate 413 and engages with the gear arranged on the rotating shaft 43.

[0040] It can be understood that the actuator 4 also includes components such as an inductive switch (such as a potentiometer switch or a micro switch, etc.) and a circuit control board. The inductive switch and the circuit control board are existing technologies, and their specific structures, settings, etc. are not described in detail here. The working principle of the micro switch is as follows: when the valve needs to be opened, the circuit control board drives the motor 45 to rotate according to the instruction. When the motor 45 drives the rotating shaft 43 to rotate to the position to open the valve, the component responsible for starting rotates with the rotating shaft 43 to trigger the micro switch. At this time, the circuit control board controls the motor 45 to stop rotating according to the signal feedback from the micro switch, thereby realizing the opening operation of the valve; and when the valve needs to be closed, the circuit control board drives the motor 45 to rotate according to the instruction. When the motor 45 drives the rotating shaft 43 to rotate to the position to close the valve, the component responsible for starting rotates with the rotating shaft 43 to the position to trigger the micro switch. At this time, the circuit control board controls the motor 45 to stop rotating according to the signal feedback from the micro switch, thereby realizing the closing operation of the valve.

[0041] The above description is only a preferred embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made by using the contents of the present invention specification and drawings under the utility model concept, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. An electric valve controller, comprising a housing and an actuator mounted within the housing, wherein the housing comprises a shell and a cover, the shell defining a space with a top opening for accommodating the actuator, and characterized in that: One side of the cover body is hinged to the shell, and the cover body swings between the position of closing the opening and the position of opening by the hinge. The other side of the cover body is provided with a snap-fit ​​portion, which is hooked or detachably fixed to the shell by a bolt so that the cover body closes the opening of the shell, and the outer end of the bolt is protruding with a hand-tightening portion.

2. The electric valve controller according to claim 1, wherein: A swing arm is formed or fixed on one side of one of the cover and the shell, and a hinge seat is integrally formed or fixed on the other one, and the swing arm is hinged to the hinge seat through a hinge shaft.

3. The electric valve controller according to claim 2, wherein: The swing arm is made of plastic, metal or nylon and is in the shape of a straight bar or a curved bar.

4. The electric valve controller according to claim 1, wherein: The shell body is provided with a clamping portion, and when the cover body is swung to a position to close the opening, the buckle portion is hooked on the clamping portion or fixed to the clamping portion by the bolt.

5. The electric valve controller according to claim 4, characterized in that: The snap-fitting portion includes a protrusion protruding from the side of the shell, and a receiving groove suitable for the snap-fitting portion is provided at the position of the protrusion corresponding to the snap-fitting portion. After the cover body closes the shell, the snap-fitting portion is partially embedded in the receiving groove and is fixed to the receiving groove by it or by a bolt with a hand-tightening portion, or the end of the snap-fitting portion has a barb extending toward the shell, and the barb is hooked on the bottom wall of the protrusion.

6. The electric valve controller according to claim 1, wherein: The hand-tightening part is a butterfly-shaped, wheel-shaped, star-shaped block structure, and the hand-tightening part is fixedly arranged at the rod end or the middle part of the bolt.

7. The electric valve controller according to claim 6, wherein: The hand-tightening portion includes a first rotating portion and a second rotating portion radially extending from the rod end of the bolt.

8. The electric valve controller according to claim 1, wherein: The buckle portion is formed integrally with the cover body, or is hinged to the cover body via a hinge shaft.

9. The electric valve controller according to claim 1, wherein: The top surface of the shell or the position of the cover corresponding to the top surface of the shell is formed with an embedding groove, and a rubber ring is partially embedded in the embedding groove. When the cover closes the shell, the sealing ring seals the matching surface of the cover and the shell.

10. The electric valve controller according to any one of claims 1 to 9, characterized in that: The actuator includes a bracket and a motor, a gear set and a rotating shaft mounted on the bracket. The bracket includes a top plate and a bottom plate spaced apart from each other, and pillars connected to the top plate and the bottom plate. The gear set can be pivotally mounted between the top plate and the bottom plate. The rotating shaft can be pivotally mounted on the top plate and the bottom plate. The lower end of the rotating shaft passes downward through the bottom plate and the lower end surface is exposed to the bottom surface of the shell. A gear in the gear set is arranged at a position where the rotating shaft is located below the bottom plate. The gear set has a double-layer gear whose lower layer extends downward from the bottom plate and engages with the gear arranged on the rotating shaft.

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