A specialized valve-saving switching tool
By designing a combination of a handcart base, a lifting platform, and a servo motor, the problem of time-consuming and labor-intensive operation of large valves is solved, realizing labor-saving and time-saving valve operation, which is suitable for vertical handwheel mechanical valves.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUADIAN TIBET ENERGY CO LTD
- Filing Date
- 2025-09-19
- Publication Date
- 2026-07-31
AI Technical Summary
Operating large valves is time-consuming and labor-intensive, especially manually operated vertical mechanical valves, which require multiple personnel to work together, affecting work progress and increasing costs.
Design a valve-saving switching tool comprising a trolley base, a lifting platform, a servo motor, a reducer, and a hydraulic system. It enables force amplification and height adjustment via manual or electric means and is suitable for vertical handwheel mechanical valves.
It achieves labor-saving and time-saving valve operation, is suitable for confined spaces, supports rapid operation by a single person, and reduces the difficulty and cost of operation.
Smart Images
Figure CN224577952U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of valve control technology, and in particular relates to a special valve labor-saving switching tool. Background Technology
[0002] Valves are control components in fluid transport systems. Large valves are commonly used in fluid pipelines. Due to design and economic factors, many factories still operate these large valves manually. Many valves on pressurized pipelines require significant operating force, and the number of rotations from fully open to fully closed is considerable, necessitating multiple operators, making the process time-consuming and labor-intensive. When personnel are scarce, assigning multiple workers to operate valves can negatively impact work progress. Surveys of valves in various factories reveal that many are purely mechanical. Converting these valves to electric or hydraulic valves would be extremely costly and require substantial investment. Utility Model Content
[0003] To reduce the operational difficulty of some valves and solve the problems of time-consuming and labor-intensive valve opening and closing operations, this utility model provides a dedicated labor-saving valve opening and closing tool.
[0004] This utility model discloses a special valve-saving switching tool, which includes a handcart base and a lifting platform.
[0005] A support frame and a servo motor are installed on the lifting platform. A reducer is fixed inside the support frame. The two ends of the reducer are drive shaft section I and drive shaft section II, respectively. Drive shaft section I and drive shaft section II are fixed to the crossbars at the front and rear of the support frame by bearings. The movable clamp is connected to the output shaft of the reducer via drive shaft section I. The input end of the reducer is connected to a synchronous pulley, and the synchronous pulley is connected to the output end of the servo motor via a belt.
[0006] A pair of scissor lifts are installed on the trolley base, connected by a linkage. One top of the scissor lift is hinged to the bottom of the lifting platform, and the other top is embedded in the slide rail at the bottom of the lifting platform via a slider. One bottom of the scissor lift is hinged to the trolley base, and the other bottom is embedded in the slide rail on the trolley base via a slider. One end of the hydraulic cylinder is hinged to the middle of the linkage, and the other end is hinged to the trolley base. At the same time, the hydraulic cylinder is connected to the hydraulic pedal.
[0007] Furthermore, a connector is provided on the input shaft of the reducer, which is connected to the crank handle via the second section of the drive shaft.
[0008] Furthermore, the end of section II of the drive shaft has a connecting groove, which can be connected to a pistol drill through connecting parts.
[0009] Furthermore, the movable clamp is a three-jaw clamp with adjustable jaw spacing, and the object it clamps is a valve handwheel. The movable clamp and the drive shaft I section are detachably fastened together.
[0010] Furthermore, the reducer is a planetary gear reducer, with couplings installed at both ends of the planetary gear reducer to achieve coaxial speed reduction.
[0011] Furthermore, the servo motor uses 220V AC power, has a constant torque output mode, and has a braking function.
[0012] Furthermore, small wheels are installed at the bottom of the trolley base.
[0013] Furthermore, anti-tipping counterweights are installed on the base of the handcart.
[0014] Furthermore, the trolley base, lifting platform, support frame, and scissor lift are all made of stainless steel.
[0015] The beneficial technical effects of this utility model are as follows:
[0016] This invention enables manual / electric valve opening via a two-stage input method. A planetary gear reducer amplifies force in confined spaces, while a hydraulic lifting platform allows for flexible adjustment of valve heights. A trolley base facilitates rapid transport of the valve, and self-weight plus counterweights prevent tipping. An all-metal frame provides stable support. This invention is particularly suitable for vertical handwheel-type mechanical valves, offering advantages such as time-saving, labor-saving, and ease of operation. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the valve-saving switching tool specifically designed for this utility model.
[0018] Figure 2 This is a schematic diagram of the assembly of the valve-saving switching tool specifically designed for this utility model.
[0019] Figure 3 This is a front view of the valve-saving switching tool specifically designed for this utility model.
[0020] In the diagram: 1-Modible clamp; 2-Drive shaft I; 3-Coupling; 4-Reducer; 5-Synchronous pulley; 6-Drive shaft II; 7-Handle; 8-Lifting platform; 9-Servo motor; 10-Scissor lift; 11-Hydraulic cylinder; 12-Trolley base; 13-Slide rail; 14-Support frame; 15-Hydraulic foot pedal; 16-Connecting rod; 17-Small wheel. Detailed Implementation
[0021] The present invention will now be described in further detail with reference to the accompanying drawings and specific implementation methods. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.
[0022] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0023] This utility model discloses a special valve-saving switching tool, such as... Figure 1 As shown, it includes a handcart base 12 and a lifting platform 8.
[0024] like Figure 1 As shown, a support frame 14 and a servo motor 9 are installed on the lifting platform 8. A reducer 4 is fixed inside the support frame 14. The two ends of the reducer 4 are a transmission shaft section I 2 and a transmission shaft section II 6, respectively. The transmission shaft section I 2 and the transmission shaft section II 6 are fixed to the crossbars at the front and rear of the support frame 14 by bearings. The movable clamp 1 is connected to the output shaft of the reducer 4 via the transmission shaft section I 2. The input end of the reducer 4 is connected to the synchronous pulley 5, and the synchronous pulley 5 is connected to the output end of the servo motor 9 via a belt.
[0025] like Figure 2 , Figure 3 As shown, a pair of scissor lifts 10 are installed on the trolley base 12. The scissor lifts 10 are connected by a connecting rod 16. One top end of the scissor lift 10 is hinged to the bottom of the lifting platform 8, and the other top end is embedded in the slide rail at the bottom of the lifting platform 8 through a slider. One bottom end of the scissor lift 10 is hinged to the trolley base 12, and the other bottom end is embedded in the slide rail 13 on the trolley base 12 through a slider. One end of the hydraulic cylinder 11 is hinged to the middle of the connecting rod 16, and the other end is hinged to the trolley base 12. At the same time, the hydraulic cylinder 11 is connected to the hydraulic pedal 15.
[0026] Furthermore, the drive shaft section II 6 has two parts with different diameters. The synchronous pulley 5 can be fitted from the thinner end, and the synchronous pulley 5 and the drive shaft section II 6 are connected by a keyway to transmit power.
[0027] Furthermore, the end of the drive shaft section II 6 has a connecting groove, which can be connected to a pistol drill through connecting parts, or directly connected to the crank handle 7.
[0028] Furthermore, the movable clamp 1 is a three-jaw clamp with adjustable jaw spacing. The object it clamps is a valve handwheel. The movable clamp 1 does not need to be firmly connected to the valve handwheel. It is connected to the transmission shaft section 2 through four slots.
[0029] Furthermore, the reducer 4 is a planetary gear reducer, and couplings 3 are installed at both ends of the planetary gear reducer to achieve coaxial reduction.
[0030] Furthermore, the servo motor 9 uses 220V AC power and has a constant torque output mode. The servo motor 9 also has a braking function, with a maximum safe output torque setting. When the force required to turn the valve handwheel exceeds the maximum safe output torque, the servo motor 9 automatically brakes to prevent the switching tool from tipping over.
[0031] Furthermore, such as Figure 2 As shown, the bottom of the handcart base 12 is equipped with small wheels 17.
[0032] Furthermore, the trolley base 12 is equipped with an anti-tipping counterweight. The weight of the entire switching tool plus the counterweight ensures its stability and prevents it from tipping over.
[0033] Furthermore, the trolley base 12, lifting platform 8, support frame 14, and scissor lift 10 are all made of stainless steel. The all-metal frame provides stable support.
[0034] This utility model is specifically designed for vertical handwheel-type mechanical valves.
[0035] This utility model provides a valve-saving switching tool with two different power input methods. The first method uses a single-stage reduction gear for power input, which can be achieved using a hand drill or manual operation. The second method uses a two-stage reduction gear and a servo motor for power input.
[0036] The first power input method: combined with attachment Figure 1-3 When this utility model device is to be used, push the handcart to the front of the valve, step on the oil pressure foot pedal 15 to drive the hydraulic cylinder 11, push the lifting platform 8 to rise, align the center of the movable clamp 1 with the valve handwheel to be operated, connect the movable clamp 1 to the valve handwheel, lock the small wheel 17 at the bottom of the handcart base 12, and crank the handle 7 to operate the valve.
[0037] The second power input method: combined with auxiliary Figure 1-3When this utility model device is to be used, push the handcart to the front of the valve, step on the oil pressure foot pedal 15 to drive the hydraulic cylinder 11, push the lifting platform 8 to rise, so that the center of the movable clamp 1 is aligned with the valve handwheel to be operated, connect the movable clamp 1 to the valve handwheel, lock the small wheel 17 at the bottom of the handcart base 12, and connect the servo motor 9 to drive the transmission shaft II section 6 to rotate through the synchronous belt pulley 5, thereby realizing the valve opening and closing operation.
[0038] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
Claims
1. A dedicated valve power switch tool, characterized by, Includes a trolley base (12) and a lifting platform (8); A support frame (14) and a servo motor (9) are installed on the lifting platform (8). A reducer (4) is fixed inside the support frame (14). The two ends of the reducer (4) are a transmission shaft section I (2) and a transmission shaft section II (6), respectively. The transmission shaft section I (2) and the transmission shaft section II (6) are fixed to the crossbars at the front and rear of the support frame (14) by bearings. The movable clamp (1) is connected to the output shaft of the reducer (4) via the transmission shaft section I (2). The input end of the reducer (4) is connected to the synchronous pulley (5). The synchronous pulley (5) is connected to the output end of the servo motor (9) via a belt. A pair of scissor lifts (10) are installed on the trolley base (12). The scissor lifts (10) are connected by a connecting rod (16). One top of the scissor lift (10) is hinged to the bottom of the lifting platform (8), and the other top is embedded in the slide rail at the bottom of the lifting platform (8) by a slider. One bottom of the scissor lift (10) is hinged to the trolley base (12), and the other bottom is embedded in the slide rail (13) on the trolley base (12) by a slider. One end of the hydraulic cylinder (11) is hinged to the middle of the connecting rod (16), and the other end is hinged to the trolley base (12). At the same time, the hydraulic cylinder (11) is connected to the hydraulic foot pedal (15).
2. A specialized valve lever switch tool according to claim 1, wherein, The input shaft of the reducer (4) is equipped with a connector, which is connected to the crank handle (7) through the transmission shaft II section (6).
3. A specialized valve lever switch tool according to claim 1, wherein, The end of the drive shaft section II (6) has a connecting groove, which can be connected to a pistol drill through connecting parts.
4. A specialized valve lever switch tool according to claim 1, wherein, The movable clamp (1) is a three-jaw clamp with adjustable jaw spacing. The clamping object is a valve handwheel. The movable clamp (1) and the transmission shaft I section (2) are detachably fastened together.
5. A specialized valve lever switch tool according to claim 1, wherein, The reducer (4) is a planetary gear reducer, and couplings (3) are set at both ends of the planetary gear reducer to achieve coaxial reduction.
6. A specialized valve lever switch tool according to claim 1, wherein, The servo motor (9) uses 220V AC power, has a constant torque output mode, and has a braking function.
7. A specialized valve lever switch tool according to claim 1, wherein, The bottom of the handcart base (12) is provided with small wheels (17).
8. A specialized valve lever switch tool according to claim 1, wherein, The handcart base (12) is equipped with an anti-tipping counterweight.
9. A specialized valve lever switch tool according to claim 1, wherein, The handcart base (12), lifting platform (8), support frame (14) and scissor lift (10) are all made of stainless steel.