Hand wheel valve opening and closing tool

Abstract

The utility model discloses a hand wheel valve opening and closing tool which comprises a body. The lever mechanism comprises a pressing and holding piece which is mounted on the main body and is used for being inserted into the hand wheel to downwards press one of the connecting rods connected with the inner ring of the hand wheel, and a tilting piece which is mounted on the main body and is used for being inserted into the hand wheel to upwards pry the other connecting rod connected with the opposite side, so that the hand wheel rotates; the electric mechanism comprises a driving part installed on the main body and a paw assembly installed at the output end of the driving part, and the paw assembly is connected to the hand wheel in an inserted or clamped mode so as to drive the hand wheel to rotate; according to the utility model, a lever mechanism and an electric mechanism are integrated into one tool, and the lever mechanism solves the problems of difficult operation and large required operation space; the electric mechanism solves the problems of low efficiency and large operation space.

Description

Technical Field

[0001] The utility model relates to the technical field of valves, in particular to a handwheel valve switching tool. Background Art

[0002] Manual valves are used in almost all fields requiring fluid control, including the power industry, chemical industry, oil and gas industry, etc. Handwheel valves are widely used in various industries due to their characteristics of being difficult to be accidentally touched.

[0003] While lever-based valve opening and closing tools offer greater labor savings, they lack pressure sensors and provide no feedback on transmitted torque. Since the valves were designed solely for manual operation, the introduction of a lever mechanism can result in excessive torque, potentially damaging the valve. Furthermore, the lever arm increases the required operating space. Furthermore, the increased lever arm also increases the travel distance, resulting in lower efficiency.

[0004] For valve switching tools with only electric mechanisms, the torque required at the beginning and end of the valve opening and closing process is too large. If the torque is provided by the electric mechanism, the maximum torque during design will be greatly increased, so a larger motor will be selected, making the overall structure larger and greatly reducing its convenience and economy. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a handwheel valve switching tool for solving the problems encountered when manually opening and closing valves, such as difficulty in operation, large operating space required, low efficiency and susceptibility to influence by the operator.

[0006] The technical solution adopted by the utility model to solve its technical problems is:

[0007] A handwheel valve switching tool, comprising:

[0008] main body;

[0009] a lever mechanism comprising a pressing member mounted on the main body and used to be inserted into the handwheel to press downward on one of the connecting rods connected to the inner ring of the handwheel, and a lifting member mounted on the main body and used to be inserted into the handwheel to pry upward on the other connecting rod connected to the opposite side, so as to rotate the handwheel; and

[0010] The electric mechanism includes a driving member installed on the main body and a hand claw assembly installed at the output end of the driving member, and the hand claw assembly is inserted and connected or clamped to the hand wheel to drive the hand wheel to rotate.

[0011] Further, in the hand wheel valve opening and closing tool, preferably the hand claw assembly comprises a claw disc mounted on the output end of the driving member and coaxial with the hand wheel, and at least one pair of clamping claws are mounted on the claw disc, and the two clamping claws are respectively inserted into the two sides of the hand wheel connecting rod to drive the hand wheel to rotate.

[0012] Further, in the hand wheel valve opening and closing tool, preferably the pressing member and the lifting member are respectively mounted on one end of the main body through locking members, and a handle sleeve is mounted on the other end of the main body to facilitate the gripping of the main body.

[0013] Further, in the hand wheel valve opening and closing tool, preferably the outer walls on both sides of the handle sleeve are respectively provided with gripping grooves, and the handle sleeve and the side walls of the gripping grooves are respectively provided with anti-skid lines.

[0014] Further, in the hand wheel valve opening and closing tool, preferably the pressing member is further provided with a detection mechanism for detecting the pressure torque of the hand wheel.

[0015] Further, in the hand wheel valve opening and closing tool, preferably the detection mechanism comprises a pressure sensor mounted on the pressing member and a torque display screen electrically connected with the pressure sensor for displaying the torque.

[0016] Further, in the hand wheel valve opening and closing tool, preferably the outer layer of the pressure sensor is wrapped with a flexible layer.

[0017] Further, in the hand wheel valve opening and closing tool, preferably the electric mechanism further comprises a support seat mounted on the main body, and the driving member is mounted on the support seat.

[0018] Further, in the hand wheel valve opening and closing tool, preferably the support seat is mounted on the main body through the pressing member, the lifting member and the locking members.

[0019] Further, in the hand wheel valve opening and closing tool, preferably the electric mechanism further comprises a controller mounted on the main body, a switch button arranged on the controller and electrically connected with the driving member to control the start and stop, and the torque display screen is arranged on the controller.

[0020] The present utility model has the following beneficial effects: the lever mechanism and the electric mechanism are combined in one tool, the lever mechanism solves the problems of difficult operation and large required operation space, and the electric mechanism solves the problems of low efficiency and large operation space. BRIEF DESCRIPTION OF DRAWINGS

[0021] The present utility model will be further described below in combination with the drawings and examples, and the drawings show:

[0022] Figure 1 is a first perspective view of a hand wheel valve switch tool in some embodiments of the present application;

[0023] Figure 2 is a use structure schematic view of a lever mechanism of a hand wheel valve switch tool in some embodiments of the present application;

[0024] Figure 3 is a structure schematic view of an electric mechanism of a hand wheel valve switch tool in some embodiments of the present application;

[0025] Figure 4 is a structure schematic view of a control box of a hand wheel valve switch tool in some embodiments of the present application.

[0026] Label explanation in the schematic view:

[0027] 1, main body; 11, handle sleeve; 12, grip groove;

[0028] 2, lever mechanism; 21, pressure holding piece; 22, lifting piece; 23, locking piece;

[0029] 3, electric mechanism; 31, driving piece; 32, pawl assembly; 321, pawl disc; 322, clamping pawl; 33, support seat; 34, controller; 35, switch button;

[0030] 4, pressure sensor; 41, torque display screen. DETAILED DESCRIPTION

[0031] In order to have a clearer understanding of the technical features, purposes and effects of the present application, the specific embodiments of the present application will be described in detail with reference to the drawings. In the following description, it should be understood that the directions or positional relationships indicated by "front", "back", "up", "down", "left", "right", "vertical", "horizontal", "vertical", "horizontal", "top", "bottom", "inner", "outer", "head", "tail" and the like are based on the directions or positional relationships shown in the drawings, constructed and operated in a particular direction, and are only for the convenience of describing the present technical solution, and cannot be understood as indicating that the devices or elements referred to must have a particular direction, therefore it cannot be understood as a limitation on the present application.

[0032] It should be noted that, unless otherwise expressly specified and limited, the terms "mounting", "connecting", "connecting", "fixing", "arranging" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements or the interaction relationship between two elements. When an element is referred to as "on" or "below" another element, the element can be "directly" or "indirectly" above the other element, or one or more intervening elements can be present. The terms "first", "second", "third" and the like are only for the convenience of describing the technical solutions, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features limited by "first", "second", "third" and the like can be explicitly or implicitly included one or more of the features. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0033] In the following description, specific details are set forth such as specific system structures, techniques, etc. in order to provide a thorough understanding of the embodiments of the present application for purposes of explanation, but not for limitation. However, it should be clear to those skilled in the art that the present application can also be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits and methods are omitted to avoid unnecessary details that hinder the description of the present application.

[0034] The technical solution adopted by the present application to solve its technical problems is:

[0035] As shown in Figures 1 to 4 Some embodiments of the present application disclose a hand wheel valve opening and closing tool, which comprises: a main body 1, a lever mechanism 2 and 3; the lever mechanism 2 comprises a pressing piece 21 mounted on the main body 1 and used for inserting into the inner ring of the hand wheel to press downward the connecting rod connected to the inner ring of the hand wheel, a lifting piece 22 mounted on the main body 1 and used for inserting into the hand wheel to pry upward the other connecting rod connected to the opposite side, so as to make the hand wheel rotate; the electric mechanism 3 comprises 31 mounted on the main body 1 and 32 mounted on the output end of the driving piece, and the claw assembly 32 is inserted into or clamped to the hand wheel to drive the hand wheel to rotate.

[0036] The pressing piece 21 and the lifting piece 22 of the lever mechanism are inserted into the connecting rod connected to the inner ring of the hand wheel disc (turntable), and the pressing piece 21 is pressed on one of the connecting rods, and the lifting piece 22 is pressed on the other connecting rod on the opposite side, so as to fix the hand wheel, so that when the main body is pressed downward, the hand wheel rotates with it, as shown in Figure 2 .

[0037] The hand wheel's wheel disc (rotary disc) is fixed by the paw component 32 of the electric mechanism 3, the driving part 31 drives the paw component 32 to rotate, and then drives the rotary disc to rotate, opening the hand wheel valve.

[0038] When the valve is opened, the lever mechanism 2 is used to overcome the large torque of the hand wheel valve first, and when the torque is less than the torque that the driving part 31 can drive, the lever mechanism 2 is not used to rotate the hand wheel valve, and the electric mechanism 3 is used to drive the rotation; when the torque of the electric mechanism 3 is less than the torque of the lever mechanism 2, the lever mechanism 2 is used to drive the rotation of the hand wheel valve, and when the displayed torque meets the torque requirement of opening the valve, the rotation of the hand wheel valve is stopped, and the opening process of the valve is completed.

[0039] When the valve is closed, the lever mechanism 2 is used to close the valve first, and when the torque transmitted is less than the maximum torque of the driving part 31, the electric mechanism 3 is used to drive the rotation of the hand wheel, and when the driving part 31 is not enough to drive the rotation of the hand wheel, the lever mechanism 2 is used to drive, and when the displayed torque is greater than the torque designed when the valve is closed, the closing process of the valve is completed.

[0040] In some embodiments, compared with the tool with only a lever mechanism, the hand wheel valve opening and closing tool has higher efficiency and saves labor, needs smaller operation space, and causes less damage to the hand wheel valve. Compared with the tool with only an electric mechanism, the torque required by the embodiment is smaller, so the volume is much smaller under the same conditions, greatly improving the portability and practicality of the tool.

[0041] As shown in Figure 1 and Figure 3 The paw component 32 includes 321 installed at the output end of the driving part 31 and coaxial with the hand wheel, and at least one pair of clamping jaws 322 is installed on the jaw disc 321, and two 322 are respectively inserted into the two sides of the hand wheel connecting rod to drive the rotation of the hand wheel.

[0042] In some embodiments, a pair of clamping jaws 322 is arranged on the jaw disc 321 coaxially with the rotary disc, and two clamping jaws 322 are inserted into the two sides of the rotary disc connecting rod to limit it. When the jaw disc 321 rotates, the clamping jaw 322 drives the rotary disc to rotate.

[0043] In some embodiments, the same number of clamping jaws 322 as the rotary disc connecting rod is arranged on the jaw disc 321, and cooperates with the shape of the connecting rod distribution, so that the wall of the connected two clamping jaws 322 limits one of the connecting rods. When the jaw disc 321 rotates, the wall of the clamping jaw 322 abuts to the connecting rod to drive it to rotate.

[0044] The pressing part 21 and the lifting part 22 are respectively provided with locking parts 23 installed at one end of the main body 1, and the other end of the main body 1 is provided with an ergonomic handle sleeve 11 for conveniently holding the main body 1.

[0045] In some embodiments, the ergonomic handle sleeve 11 makes the operator's force more reasonable, greater in the same case and reduces the pain caused by squeezing.

[0046] In some embodiments, the handle sleeve 11 is made of rubber, silicone or flexible plastic material, or other flexible materials.

[0047] In some embodiments, the locking member 23 is a nut, the pressing member 21 and the lifting member 22 are made of bolts, and both bolts are modified. The tail end of the bolt is removed by a lathe to only retain part of the thread to cooperate with the nut. The function of removing most of the thread of the electric mechanism 3 is to prevent the thread from causing damage to the hand wheel. In summary, the function of the bolt has two parts. One is to drive the hand wheel to rotate as part of the lever mechanism 2, and the other is to fix the electric mechanism 3.

[0048] As shown in Figure 1 and Figure 2 , the outer walls of the handle sleeve 11 on both sides are respectively provided with gripping grooves 12, and the side walls of the handle sleeve 11 and the gripping grooves 12 are respectively provided with anti-skid lines.

[0049] In some embodiments, the inner recessed gripping grooves 12 are provided on the side of the handle sleeve 11, and the anti-skid lines are provided, so as to avoid the worker from slipping due to sweat on the hands when opening, and to avoid the worker from being separated from the gripping body 1 under the force of pushing, causing danger.

[0050] The pressing member 21 is also provided with a detection mechanism for detecting the pressure torque of the hand wheel.

[0051] As shown in Figure 2 and Figure 4 , the detection mechanism includes a 4 installed on the pressing member 21 and a torque display screen 41 electrically connected with the pressure sensor 4 for displaying the torque.

[0052] In some embodiments, the pressure sensor 4 is placed on the pressing member 21, and the pressure sensor 4 is attached to both sides for indicating the pressure size when opening and closing. Since the parameters of the hand wheel valve and the driving member are related to torque rather than force when designed, the pressure needs to be processed and converted into torque. The torque size, i.e. the pressure size, is the product of the distance between the pressing member 21 and the lifting member 22. The distance between the pressing member 21 and the lifting member 22 is fixed. The original torque display screen 41 circuit can be changed to add an operational amplifier to realize that the pressure display is changed to torque display.

[0053] The outer layer of the pressure sensor 4 is wrapped with a flexible layer.

[0054] In some embodiments, the pressure sensor 4 is wrapped with silica gel or other flexible material to reduce damage to the pressure sensor 4 and the handwheel, avoid scratching the surface of the handwheel, and protect the pressure sensor 4.

[0055] As shown in Figures 1 to 3 The electric mechanism 3 further includes a support seat 33 mounted on the main body 1, and the driving member 31 is mounted on the support seat 33.

[0056] The support seat 33 is mounted on the main body 1 through the pressing member 21, the lifting member 22, and the locking member 23.

[0057] In some embodiments, the pressing member 21 and the lifting member 22 are passed through the support seat 33 and the main body 1, and then the locking member 23 is screwed on the pressing member 21 and the lifting member 22 to fix the support seat 33 on the first section of the main body 1.

[0058] The electric mechanism 3 further includes a controller 34 mounted on the main body 1, a switch button 35 arranged on the controller 34 and electrically connected with the driving member 31 to control start and stop, and a torque display screen 41 arranged on the controller 34.

[0059] In some embodiments, the electric mechanism 3 can realize forward and reverse rotation to perform the actions of opening and closing the valve, and the switch and power supply are arranged in the controller 34 in the middle part of the main body 1. The driving member 31 is driven by a battery, and no plug-in use is required to improve the portability of the tool.

[0060] In some embodiments, the driving member 31 is a motor.

[0061] The handwheel valve switch tool will be further described below in combination with the use process.

[0062] There are two actions worth attention when switching the valve, one is the first action of opening the valve and the last action of closing the valve, which requires relatively large force, and the other is the process action of opening and closing, which does not require relatively large force but requires relatively large number of turns, i.e., large stroke. The lever mechanism 2 of the present embodiment is used to perform the first action, and the electric mechanism 3 is used to perform the second action. The lever mechanism 2, the electric power driving, and the pressure sensor 4 are integrated in one tool in the present embodiment, the lever mechanism 2 solves the problems of difficult operation and large required operation space; the electric mechanism 3 solves the problems of low efficiency and large operation space; and the pressure sensor 4 partially solves the problem of being easily affected by the operator.

[0063] The installation process of the handwheel valve switch tool is as follows: 1. The ergonomic handle sleeve 11 is installed, and the main body 1 is designed to have an interference fit, and after assembly is completed, a hot air blower is used to heat the handle sleeve 11 so that it does not fall off.

[0064] 2, the support seat 33 is fixed on the main body 1 with the pressing piece 21 and the lifting piece 22.

[0065] 3, install the driving piece 31. The pressure sensor 4 is installed on both sides of the pressing piece 21 and is wrapped with flexible material.

[0066] 4, assemble the controller 34 and install it in the middle of the main body 1.

[0067] 5, install the torque display screen 41.

[0068] 6, install the coupling and the grab disc 322 on the driving piece 31.

[0069] When the handwheel valve switch tool is used: when the valve is opened, first use the lever mechanism 2 to overcome the large torque of the handwheel valve, when the torque is less than the torque that the driving piece 31 can drive, the handwheel valve can not be rotated by using the lever mechanism 2, but the electric mechanism 3 is used to drive it to rotate; when the torque of the electric mechanism 3 is purchased, the lever mechanism 2 is used to drive the handwheel valve to rotate, and when the displayed torque meets the torque requirement of opening the valve, the handwheel valve is stopped rotating, and the opening valve process ends.

[0070] When the valve is closed, first use the lever mechanism 2 to close the valve, when the torque transmitted is less than the maximum torque of the driving piece 31, use the electric mechanism 3 to drive the handwheel to rotate, when the driving piece 31 is not enough to drive the handwheel to rotate, change to the lever mechanism 2 to drive, when the displayed torque is greater than the torque designed when the valve is closed, the valve closing process ends.

[0071] It can be understood that the above embodiment only expresses the preferred embodiment of the present application, which is described in detail, but it cannot be understood as limiting the scope of the present application patent; it should be pointed out that for ordinary skilled in the art, the above technical features can be freely combined without departing from the concept of the present application, and some deformations and improvements can be made, which belong to the protection scope of the present application; therefore, any equivalent transformation and modification within the scope of the present application claim should belong to the scope of the present application claim.

Claims

1. A hand wheel valve opening and closing tool for opening and closing a valve by rotating a hand wheel, characterized by, The utility model relates to a hand wheel driving device, which comprises: a main body; a lever mechanism, which comprises a pressing member mounted on the main body and used for pressing down one of the connecting rods connected to the inner ring of the hand wheel to drive the hand wheel to rotate, and a lifting member mounted on the main body and used for prying up the other connecting rod connected to the opposite side to drive the hand wheel to rotate; and an electric mechanism, which comprises a driving member mounted on the main body and a hand claw assembly mounted on the output end of the driving member and connected to the hand wheel to drive the hand wheel to rotate.

2. A hand wheel valve switch tool according to claim 1, wherein The hand claw assembly comprises a claw disc mounted on the output end of the driving member and coaxial with the hand wheel, and at least one pair of clamping claws mounted on the claw disc and inserted into the two sides of the connecting rod of the hand wheel to drive the hand wheel to rotate.

3. A hand wheel valve switch tool according to claim 1, wherein The pressing member and the lifting member are respectively mounted on one end of the main body through locking members, and the other end of the main body is provided with a handle sleeve for ergonomically holding the main body.

4. A hand wheel valve switch tool according to claim 3, wherein The outer walls of the handle sleeve on both sides are respectively provided with holding grooves, and the handle sleeve and the side walls of the holding grooves are respectively provided with anti-skid lines.

5. A hand wheel valve switch tool according to claim 1 wherein, The pressing member is further provided with a detection mechanism for detecting the pressure torque of the hand wheel.

6. A hand wheel valve switch tool according to claim 5, wherein, The detection mechanism comprises a pressure sensor mounted on the pressing member and a torque display screen electrically connected to the pressure sensor and used for displaying the torque.

7. A hand wheel valve switch tool according to claim 6, wherein, The outer layer of the pressure sensor is wrapped with a flexible layer.

8. A hand wheel valve switch tool according to claim 3, wherein, The electric mechanism further comprises a supporting seat mounted on the main body, and the driving member is mounted on the supporting seat.

9. A hand wheel valve switch tool according to claim 8, wherein, The supporting seat is mounted on the main body through the pressing member, the lifting member and the locking members.

10. A hand wheel valve switch tool according to claim 6, wherein, The electric mechanism further comprises a controller mounted on the main body, a switch button provided on the controller and electrically connected to the driving member to control the start and stop, and the torque display screen is provided on the controller.

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