Multifunctional small valve wrench

Abstract

The utility model discloses a multifunctional small valve wrench, which belongs to the technical field of valve tools and comprises a base plate, extension rods are fixedly connected to the top and the bottom of the base plate, a base rod is rotatably connected to one side of each extension rod, and the extension rods are matched with the base rod to effectively push an instrument valve to be opened and closed for adjusting operation. The extension rods and the base rods are distributed at the top and the bottom of the base plate, the distances between the extension rods and the base rods are different so as to adapt to valves of various specifications, the outer walls of the base rods are rotationally connected with expansion structures used for increasing contact with valve components, and an inner cavity of the base plate is slidably connected with a sliding grip. The four groups of extension rods and base rods with different intervals are arranged at the top and the bottom of the base plate, so that small valves with various specifications can be adapted, an operator does not need to prepare a large number of wrench tools with different models, the time for finding adaptive tools is greatly saved, and the working efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to valve tool technical field, concretely is a kind of multifunctional small valve wrench. BACKGROUND

[0002] In various scenes of industrial production, valve operation always occupies a crucial position, especially in the heating system and the complex environment involving many instrument valves, the heating system as the key facility to ensure the indoor temperature comfort, in the process of actual use, often face many complex conditions, part of valve due to long time in static non-operation state, cause moisture in air and the chemical reaction of metal valve surface, make the surface of valve appear rust phenomenon, lead to the friction between the rotating parts of valve greatly increase, and the impurities in pipeline can be accumulated in the sealing part or movable connection of valve, further hinder the normal opening and closing action of valve.

[0003] Chinese patent discloses a valve wrench (announcement number CN205363702U), the patent includes force rod, the head of the force rod is the joint end, tail is handheld end, wherein, force rod is also installed with the pressure warning device for detecting wrench pressure damage, pressure warning device includes pressure sensing component and display output component, pressure sensing component is installed in the handheld end to detect the pressure of the handheld end, display output component is arranged on force rod with pressure sensing component to display detection pressure.

[0004] Therefore, based on the above retrieval and in combination with the existing, because the valve of heating system is generally small, but the above device cannot be adjusted according to the volume of valve, lead to the above device in response to different specifications valve, and difficult to accurately position operating site, easy to slip in the process of rotation, not only can not effectively transmit torque to realize valve switch, also can cause additional wear to valve, affect the sealing property and service life of valve, therefore, based on the above retrieval and in combination with the existing, therefore, the utility model provides a kind of multifunctional small valve wrench, to solve the problems proposed above. UTILITY MODEL CONTENT

[0005] The utility model is aimed at providing a kind of multifunctional small valve wrench, to solve the problems proposed in the above background art.

[0006] In order to achieve the above object, the utility model provides the following technical scheme: including base plate, the top and bottom of base plate all are fixedly connected with extension rod, one side of extension rod is rotatably connected with base rod, and can effectively promote instrument valve switch adjustment operation through extension rod and base rod cooperation, four groups of extension rod and base rod are arranged on the top and bottom of base plate, and the distance between each group of extension rod and base rod is different, so as to adapt to various specifications valve, the outer wall of base rod is rotatably connected with expansion structure for increasing contact with valve part, the inner chamber of base plate is slidably connected with sliding handle, and the user is convenient through sliding handle, more labor-saving grip base plate, realize more accurate operation base plate.

[0007] Further, the outer wall of the four extension rods is fixedly installed with a rubber sleeve for protecting the extension rod, and the outer wall of the four rubber sleeves is fixedly connected with a rubber bump for increasing friction.

[0008] Further, the expansion structure includes a sliding sleeve rotatably connected to the outer wall of the base rod, and the outer wall of the base rod is provided with a threaded groove.

[0009] Further, a top plate is slidably connected below the sliding sleeve to increase the contact area with the valve, a rotating rod one is rotatably connected to the inner cavity of the top plate for pushing the top plate to move, and a rotating rod two is rotatably connected to the inner cavity of the top plate for positioning the top plate.

[0010] Further, the inner cavity of the base plate is provided with a special-shaped groove for providing sliding of the sliding handle, and the inner cavity of the base plate is slidably connected with two sliding clamps for limiting the sliding handle.

[0011] Further, the inner cavity of the base plate is slidably connected with a bent rod for pushing the two sliding clamps to slide simultaneously, and the inner cavity of the base plate is provided with a sandwich groove for providing sliding of the bent rod.

[0012] Compared with the prior art, the utility model has the advantages that:

[0013] 1. By arranging four groups of extension rods and base rods with different spacings on the top and bottom of the base plate, various specifications of small valves are adapted, so that the operator does not need to prepare a large number of different types of wrench tools, greatly saving the time for finding suitable tools, improving the work efficiency, and in addition, the length of the base plate is 200mm, the width is 40mm, and the thickness is 4mm, and the four extension rods are 20mm long and 5mm in diameter, so the whole is relatively light and convenient for the worker to carry during on-site inspection, to meet the valve operation demand at any time, reduce the labor intensity, ensure the timeliness and accuracy of valve operation during production process, and improve the work efficiency and production safety.

[0014] 2、By setting the expansion structure on the outer wall of the base rod, and the expansion structure is fine-tuned according to the specific specifications of the valve, the stability of the valve during operation is ensured, displacement or shaking is prevented, torque is effectively transmitted, energy loss and operation errors are reduced, the work efficiency of the operator is improved, and the diversified needs of the production site for valve operation are met. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a structure diagram of a multifunctional small valve wrench as a whole.

[0016] Figure 2 It is a structure diagram of a base plate in a multifunctional small valve wrench.

[0017] Figure 3 It is a structure diagram of a sliding sleeve in a multifunctional small valve wrench.

[0018] Figure 4 It is a structure diagram of a sliding handle in a multifunctional small valve wrench.

[0019] In the figure: 1, base plate; 2, extension rod; 3, base rod; 4, expansion structure; 5, sliding handle; 201, rubber sleeve; 202, rubber bump; 401, sliding sleeve; 402, threaded groove; 403, top plate; 404, rotating rod one; 405, rotating rod two; 406, pin shaft two; 501, special-shaped groove; 502, sliding block; 503, insertion slot; 504, bent rod; 505, interlayer groove; 506, gear; 507, rotating handle; 508, rack. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0021] Embodiment 1: Please refer to Figures 1-4The utility model provides a multifunctional small valve wrench, base plate 1, the top and bottom of base plate 1 are fixedly connected with extension rod 2, one side of extension rod 2 is rotatably connected with base rod 3, the bottom of base rod 3 is rotatably connected at the top of base plate 1, and the extension rod 2 and base rod 3 can effectively push the instrument valve switch adjustment operation through cooperation, and the extension rod 2 and base rod 3 are provided with four groups of distribution at the top and bottom of base plate 1, and the distance between each group of extension rod 2 and base rod 3 is different to adapt to various specifications valve, and the spacing between four extension rods 2 and base rods 3 is 15mm, 20mm, 25mm, 30mm respectively, to be suitable for small valve DN10, DN15, DN20, DN25, DN32, DN40 etc. in heating system, solve the problem that the production site is difficult to operate due to the valve jamming, rust etc. for a long time, need not frequently seek the matching tool, improve the operation efficiency, in addition, because the length of base plate 1 is 200mm, the width is 40mm, the thickness is 4mm galvanized steel sheet, and the length of four extension rods 2 is 20mm, the diameter is 5mm, so the whole is relatively light, and the staff can carry it when patrolling and checking in the production site, and the valve operation demand can be responded at any time, reduce the labor intensity, guarantee the timeliness and accuracy of valve operation in the production process, improve the work efficiency and production safety;

[0022] The outer wall of the base rod 3 is rotatably connected with the expansion structure 4 for increasing the contact with the valve part, and the inner cavity of the base plate 1 is slidably connected with the sliding handle 5, which facilitates the user to hold the base plate 1 more easily and accurately.

[0023] Please refer to Figures 1-2 The outer wall of the four extension rods 2 is fixedly installed with the rubber sleeve 201 for protecting the extension rod 2, which effectively prevents wear and damage caused by collision, friction and other factors during use, prolonging the service life of the extension rod 2, and the outer wall of the four rubber sleeves 201 is fixedly connected with the rubber bump 202 for increasing the friction, specifically, a plurality of rubber bumps 202 are arranged on the outer wall of the rubber sleeve 201, and the rubber bump 202 increases the friction between the extension rod 2 and the valve, avoiding the influence on the operation accuracy and efficiency due to slipping, especially in fine operation of small valves, reducing the risk of operation failure and improving the work safety and accuracy.

[0024] Please refer to Figures 2-3 The expansion structure 4 comprises a sliding sleeve 401 rotatably connected to the outer wall of the base rod 3, and the outer wall of the base rod 3 is provided with a threaded groove 402, specifically, the sliding sleeve 401 is threadedly connected to the outer wall of the threaded groove 402, so that the sliding sleeve 401 slides up and down on the outer wall of the threaded groove 402 by rotating the base rod 3.

[0025] Please refer to Figures 2-3The lower side of the sliding sleeve 401 is slidably connected with the top plate 403, and the contact area with the valve is increased through the top plate 403, so that enough torque can be applied to the extension rod 2 to rotate the valve. The top plate 403 is provided with six arrays below the sliding sleeve 401 to ensure the uniformity of the force on the base rod 3. The inner cavity of the top plate 403 is rotatably connected with the rotating rod one 404 for pushing the top plate 403 to move through the bearing. The inner cavity of the top plate 403 is rotatably connected with the rotating rod two 405 for positioning the top plate 403 through the bearing. Specifically, the rotating rod one 404 is located above the rotating rod two 405. The top of the rotating rod one 404 is rotatably connected to the bottom of the sliding sleeve 401 through the pin shaft one. The bottom of the rotating rod two 405 is rotatably connected with the pin shaft two 406. The rotating rod two 405 is rotatably connected to the top of the base plate 1 through the pin shaft two 406. The bottom of the pin shaft two 406 is fixedly connected to the top of the base plate 1. The pin shaft two 406 positions the sliding sleeve 401. When the sliding sleeve 401 slides up and down, the multiple top plates 403 are pushed to slide and expand or contract on the outer wall of the base rod 3 through the rotating rod one 404, so as to finely adjust according to the specific specifications of the valve. The valve is more stably fixed between the extension rod 2 and the base rod 3, ensuring effective transmission of torque during valve rotation, reducing energy loss and the possibility of operation error, preventing displacement or shaking of the valve during operation, improving the safety and accuracy of operation, and ensuring smooth completion of valve operation tasks.

[0026] Embodiment 2: please refer to Figure 4 A multifunctional small valve wrench, which is different from embodiment 1 in that the inner cavity of the base plate 1 is provided with a special-shaped groove 501 for sliding the sliding handle 5. The inner cavity of the base plate 1 is slidably connected with two sliding clamping blocks 502 for limiting the sliding handle 5. Specifically, the inner cavity of the sliding handle 5 is provided with four insertion grooves 503 for sliding the sliding clamping blocks 502. The extension rod 2 and the base rod 3 are distributed on the top and bottom of the base plate 1, so the position of the sliding handle 5 in the special-shaped groove 501 can be adjusted according to the needs, and the sliding clamping blocks 502 are inserted into the inner cavities of the insertion grooves 503 at different positions to limit them. Thus, the device is convenient to grip in different operation scenarios, improves the work efficiency and operation experience of the operator, reduces the operation difficulty and labor intensity, and better meets the diversified needs of valve operation in the production site.

[0027] Please refer to Figure 4The inner cavity of the base plate 1 is slidably connected with a bent rod 504 for pushing the two sliding clamping blocks 502 to slide simultaneously, the ends of the two sliding clamping blocks 502 away from each other are fixedly connected with the bent rod 504, the inner cavity of the base plate 1 is provided with a sandwich groove 505 for providing the sliding of the bent rod 504, and the bent rod 504 and the sliding clamping block 502 are slidably connected in the inner cavity of the sandwich groove 505, specifically, the inner cavity of the sandwich groove 505 is rotatably connected with a gear 506, the inner cavity of the base plate 1 is rotatably connected with a handle 507 for driving the gear 506 to rotate, the ends of the two bent rods 504 close to each other are fixedly connected with a rack 508, and the two racks 508 are located at the two ends of the gear 506 and are meshingly connected with the gear 506, so as to drive the gear 506 to rotate by rotating the handle 507, and the gear 506 pushes the two bent rods 504 and the sliding clamping block 502 to move close to or away from each other through the rack 508.

[0028] Working principle: first, according to the valve model, size, select the different distance of extension rod 2 and base rod 3, and turn over the base plate 1, make the matching extension rod 2 and base rod 3 located below the base plate 1, and drive the gear 506 to rotate by rotating the handle 507, make the gear 506 push the two bent rods 504 and the sliding clamping block 502 to slide into the inner cavity of the base plate 1 respectively by the rack 508, relax the sliding handle 5, pull the sliding handle 5 up, and drive the gear 506 to rotate reversely by reversely rotating the handle 507, make the gear 506 push the two bent rods 504 and the sliding clamping block 502 to slide by the rack 508, make the two sliding clamping blocks 502 insert into the inner cavity of the insertion slot 503, fix the sliding handle 5, and accurately clamp or adhere the extension rod 2 and the base rod 3 on the operating part of the valve, so as to stably transmit the force from the hand to the working part of the wrench after applying pressure on the sliding handle 5, and then smoothly complete the opening and closing adjustment operation of the valve.

[0029] When there is a gap between the operating part of the valve and the extension rod 2, the sleeve 401 can slide downward on the outer wall of the threaded groove 402 by rotating the base rod 3, so that the plurality of rotating rods 404 simultaneously push the plurality of top plates 403 to slide and expand on the outer wall of the base rod 3 to press the operating part of the valve, so that the extension rod 2 is closely combined with the valve, and the force can be effectively transmitted during the operation.

[0030] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto, any skilled person in the art can make equivalent replacement or change within the technical range disclosed by the present application according to the technical scheme and the inventive concept of the present application, which should be covered within the protection scope of the present application.

Claims

1. A multi-functional small valve wrench comprising a base plate (1), characterized in that: The top and bottom of the substrate (1) are fixedly connected with extension rods (2), one side of the extension rod (2) is rotatably connected with a base rod (3), and the extension rod (2) and the base rod (3) can effectively push the instrument valve switch adjustment operation, the extension rod (2) and the base rod (3) are provided with four groups of distribution on the top and bottom of the substrate (1), and the distance between each group of extension rod (2) and base rod (3) is different, so as to adapt to various specifications of valves, the outer wall of the base rod (3) is rotatably connected with an expansion structure (4) for increasing the contact with the valve part, the inner cavity of the substrate (1) is slidably connected with a sliding handle (5), and the sliding handle (5) is convenient for the user to hold the substrate (1) more easily, so as to realize more accurate operation of the substrate (1).

2. The multi-functional small valve wrench according to claim 1, characterized in that: The outer wall of the four extension rods (2) is fixedly connected with a rubber sleeve (201) for protecting the extension rod (2), and the outer wall of the four rubber sleeves (201) is fixedly connected with a rubber bump (202) for increasing the friction.

3. The multi-functional small valve wrench according to claim 2, characterized in that: The expansion structure (4) comprises a sliding sleeve (401), the sliding sleeve (401) is rotatably connected with the outer wall of the base rod (3), and the outer wall of the base rod (3) is provided with a threaded groove (402).

4. The multi-functional small valve wrench according to claim 3, characterized in that: The lower side of the sliding sleeve (401) is slidably connected with a top plate (403), and the top plate (403) increases the contact area with the valve, the inner cavity of the top plate (403) is rotatably connected with a rotating rod one (404) for pushing the top plate (403) to move, and the inner cavity of the top plate (403) is rotatably connected with a rotating rod two (405) for positioning the top plate (403).

5. The multi-functional small valve wrench according to claim 1, wherein: The inner cavity of the substrate (1) is provided with a special-shaped groove (501) for providing sliding of the sliding handle (5), and the inner cavity of the substrate (1) is slidably connected with two sliding clamping blocks (502) for limiting the sliding of the sliding handle (5).

6. The multi-functional small valve wrench according to claim 5, characterized in that: The inner cavity of the substrate (1) is slidably connected with a bending rod (504) for pushing the two sliding clamping blocks (502) to slide simultaneously, and the inner cavity of the substrate (1) is provided with a clamping layer groove (505) for providing sliding of the bending rod (504).

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