Rocker arm wrench

Abstract

The utility model provides a rocker arm wrench which is used for rotating a fan blade shaft on a gear motor. The rocker arm wrench comprises a connector, a locking piece and a rocker. Wherein the connector is provided with a hole body penetrating through the connector, and the fan blade shaft can be inserted into the hole body. The locking piece is arranged on the connector and used for locking the fan blade shaft inserted into the hole body so as to limit the fan blade shaft to generate relative rotation in the hole body. The end of the rocker is connected with the connector, and the rocker extends in the radial direction of the hole body. An operator uses the rocker arm wrench to rotate fan blades, the operation difficulty can be reduced, and time and labor are saved.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical special tools, in particular to a rocker arm wrench. Background Art

[0002] During comprehensive maintenance of the elevator feeder in the cigarette flavoring workshop, the elevator belt needed to be disassembled and installed. The elevator belt is driven by a reduction motor. Because the elevator belt is heavy, manual rotation of the fan blade shaft on the reduction motor was required to rotate the motor's output.

[0003] Currently, operators manually rotate fan blade shafts by gripping the shaft's circumference with a wrench and then manually applying torque to rotate the shaft. However, the shaft's circumference is difficult to grip, leading to frequent slippage during rotation. Furthermore, the narrow space where the reduction motor is installed makes manual operation difficult, and the entire process takes 4.5 hours and is labor-intensive. Utility Model Content

[0004] The present invention aims to solve the technical problems of difficulty and labor consumption caused by manual rotation of fan blade shafts. The present invention provides a rocker wrench that can reduce the difficulty of operation and save time and effort when the operator rotates the fan blades.

[0005] In order to make the technical solutions and advantages of the present invention more clear, the implementation methods of the present invention are described in further detail below.

[0006] The embodiment of the present invention provides a rocker arm wrench for rotating a fan blade shaft on a reduction motor. The rocker arm wrench provided by the present invention includes:

[0007] A connector having a hole extending therethrough, into which the fan blade shaft can be inserted;

[0008] A locking member is provided on the connecting head, and is used to lock the fan blade shaft inserted into the hole body to limit the relative rotation of the fan blade shaft in the hole body;

[0009] The end of the rocker is connected to the connector, and the rocker extends along the radial direction of the hole body.

[0010] According to another specific embodiment of the present invention, the connector includes:

[0011] An inner nested cylinder, the hole body is provided on the inner nested cylinder, and at least one clamping plane is provided on the outer wall of the inner nested cylinder, and the clamping plane is parallel to the axis of the hole body;

[0012] The clamping piece has a clamping opening on its side wall, and the inner nested tube can be inserted into the clamping opening. At least one clamping plane is provided on the inner wall of the clamping opening. When the inner nested tube is inserted into the clamping opening, the clamping plane is in contact with the clamping plane; the end of the rocker is connected to the clamping piece.

[0013] According to another specific embodiment of the present invention, the number of clamping planes and the number of clamping planes are two respectively, the two clamping planes are arranged back to back, and the two clamping planes are parallel; the two clamping planes are arranged opposite to each other, and the two clamping planes are parallel; when the inner nested tube is inserted into the clamping mouth, one clamping plane is in contact with one clamping plane, and the other clamping plane is in contact with the other clamping plane.

[0014] According to another specific embodiment of the present invention, there are two clamping planes, which are arranged opposite to each other and parallel to each other; there are six clamping planes, each clamping plane is parallel to the axis of the hole body, and the six clamping planes form a hexagon, and the two clamping planes arranged opposite to each other are parallel to each other.

[0015] According to another specific embodiment of the present invention, the inner nesting cylinder and the clamping piece are both made of stainless steel.

[0016] According to another specific embodiment of the present invention, a threaded hole is provided on the clamping plane and passes through the side wall of the hole body, and a clearance opening is provided on the clamping plane and passes through the side wall of the clamping opening. When the inner nested cylinder is inserted into the clamping opening, the threaded hole is located within the projection range of the clearance opening on the clamping plane.

[0017] The locking piece is a bolt, which can be threadedly connected to the threaded hole after passing through the clearance opening; when the locking piece is locked, the end of the locking piece abuts against the circumferential surface of the fan blade shaft to limit the rotation of the fan blade shaft in the hole body.

[0018] According to another specific embodiment of the present invention, a gasket is provided in the hole body, and the outer circumferential surface of the gasket is in contact with the inner circumferential surface of the hole body.

[0019] According to another specific embodiment of the present invention, the wall thickness of the gasket is 2 mm.

[0020] According to another specific embodiment of the present invention, the gasket is made of rubber or silicone.

[0021] According to another specific embodiment of the present invention, a handle is provided at one end of the rocker away from the connecting head, and an extending direction of the handle is perpendicular to an extending direction of the rocker.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] The present invention provides a locking member on the connector to lock the fan blade shaft inserted into the hole, thereby preventing the fan blade shaft from slipping during rotation and reducing the operator's difficulty in operation. In addition, the present invention provides a rocker lever, which allows the connector to be inserted into the narrow space where the fan blade shaft is located, thereby increasing the rotation arm, further reducing the difficulty of operation and saving manpower. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A schematic diagram showing the appearance of a rocker arm wrench provided by one embodiment of the utility model is shown;

[0025] Figure 2 An exploded view of a rocker arm wrench provided in one embodiment of the present utility model is shown;

[0026] Figure 3 A partial cross-sectional view of a rocker arm wrench provided by one embodiment of the present utility model is shown;

[0027] Figure 4 A partial cross-sectional view of a rocker arm wrench provided in another embodiment of the present invention is shown.

[0028] Reference numerals:

[0029] 1. Connector, 2. Inner nested cylinder, 21. Hole, 22. Clamping plane, 23. Threaded hole, 3. Clamping piece, 31. Clamping mouth, 32. Clamping plane, 33. Yield, 4. Locking piece, 5. Rocker, 51. Connecting end, 52. Free end, 6. Washer, 7. Handle. DETAILED DESCRIPTION

[0030] The following is an explanation of the implementation of the present invention by means of specific specific embodiments. Those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. Although the description of the present invention will be introduced in conjunction with the preferred embodiment, this does not mean that the features of this utility model are limited to this implementation. On the contrary, the purpose of introducing the utility model in conjunction with the implementation is to cover other options or modifications that may be extended based on the claims of the present invention. In order to provide an in-depth understanding of the present invention, the following description will contain many specific details. The present invention can also be implemented without using these details. In addition, in order to avoid confusion or blurring the focus of the present invention, some specific details will be omitted in the description. It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0031] It should be noted that in this specification, similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0032] The terms “first”, “second”, etc. are only used for distinguishing descriptions and should not be understood as indicating or implying relative importance.

[0033] In the description of this embodiment, it should be noted that the terms "left", "right", "front", "rear", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, or are the directions or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as a limitation on the utility model.

[0034] In the description of this embodiment, it should be noted that, unless otherwise specified or limited, the terms "disposed," "connected," and "connected" should be understood broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this embodiment based on specific circumstances.

[0035] In order to make the technical solutions and advantages of the present invention more clear, the implementation methods of the present invention are described in further detail below.

[0036] refer to Figure 1 The embodiment of the present invention provides a rocker wrench for rotating the fan blade shaft on the reduction motor. The rocker wrench provided by the present invention includes: a connector 1, a locking member 4 and a rocker 5.

[0037] The connector 1 is provided with a hole 21 that passes through the connector 1, and the fan blade shaft can be inserted into the hole 21. Exemplarily, the diameter of the hole 21 is clearance-matched with the diameter of the fan blade shaft so that the fan blade shaft can be easily inserted into the hole 21.

[0038] The locking member 4 is provided on the connector 1 , and is used to lock the fan blade shaft inserted into the hole 21 , so as to limit the relative rotation of the fan blade shaft in the hole 21 .

[0039] The two ends of the rocker 5 are a connecting end 51 and a free end 52, wherein the connecting end 51 is connected to the connector 1, and the rocker 5 extends radially along the hole 21. For example, the diameter of the rocker 5 can range from 8 to 12 mm, and the length of the rocker 5 can range from 500 to 700 mm.

[0040] When the fan blade shaft needs to be rotated, the hole body 21 is first placed on the outside of the fan blade shaft and locked with the locking member 4 to secure the fan blade shaft in the hole body 21. Subsequently, the operator holds the free end 52 of the rocker 5 and applies torque to the rocker 5. The torque is transmitted to the fan blade shaft through the rocker 5 and the connector 1, thereby driving the fan blade shaft to rotate.

[0041] The present application provides a locking member 4 on the connector 1, which can be used to lock the fan blade shaft inserted into the hole 21. This prevents the fan blade shaft from slipping during rotation, that is, prevents the fan blade shaft from rotating relative to the hole 21, thereby reducing the difficulty of operation for the operator. In addition, the present application provides a rocker 5, which can be used to extend the connector 1 into the narrow space where the fan blade shaft is located. This not only avoids the safety hazards caused by the operator working in a narrow space, but also increases the rotation arm, thereby further reducing the difficulty of operation and saving manpower.

[0042] For further reference, Figure 2 The connector 1 includes an inner nested tube 2 and a clamping piece 3, both of which can be made of stainless steel.

[0043] The hole body 21 is provided on the inner nested tube 2 . The outer wall of the inner nested tube 2 is provided with at least one clamping plane 22 . The clamping plane 22 is parallel to the axis of the hole body 21 .

[0044] The sidewall of the clamping member 3 is provided with a clamping opening 31 into which the inner nested tube 2 can be inserted. The inner wall of the clamping opening 31 is provided with at least one clamping surface 32. When the inner nested tube 2 is inserted into the clamping opening 31, the clamping surface 32 is aligned with the gripping surface 22. The connecting end 51 of the rocker 5 is fixedly connected to the clamping member 3.

[0045] For further reference, Figure 2 and Figure 3 A threaded hole 23 is provided on the clamping plane 22 and passes through the side wall of the hole body 21, and a clearance opening 33 is provided on the clamping plane 32 and passes through the side wall of the clamping opening 31. When the inner nested tube 2 is inserted into the clamping opening 31, the threaded hole 23 is located within the projection range of the clearance opening 33 on the clamping plane 22.

[0046] The locking member 4 is a bolt that can be threadedly connected to the threaded hole 23 after passing through the clearance opening 33. When the locking member 4 is locked, the end of the locking member 4 abuts against the circumferential surface of the fan blade shaft to limit the fan blade shaft from rotating in the hole body 21.

[0047] When the fan blade shaft needs to be rotated, first, the inner nesting tube 2 is placed on the outside of the fan blade shaft (that is, the fan blade shaft is inserted into the hole 21), and then the locking piece 4 is screwed into the threaded hole 23 and locked. At this time, the end of the locking piece 4 presses against the circumference of the fan blade shaft, thereby locking the fan blade shaft to limit the rotation of the fan blade shaft in the hole 21. Then, the operator holds the rocker 5 and moves the clamping piece 3 along the Figure 2 and Figure 3 The X-direction fork shown in the figure is located outside the inner tube 2 (i.e., when the inner tube 2 is inserted into the clamping opening 31). Because the clamping member 3 is provided with a clearance opening 33, the locking member 4 does not interfere with the clamping member 3 during the insertion of the inner tube 2 into the clamping opening 31. After the inner tube 2 is inserted into the clamping opening 31, the clamping plane 22 aligns with the clamping plane 32, and the operator then applies torque to the rocker 5. Because the clamping plane 22 aligns with the clamping plane 32, the inner tube 2 and the clamping member 3 do not rotate relative to each other. The inner tube 2 rotates under the influence of the clamping member 3, thereby driving the fan blade shaft to rotate along with it.

[0048] The present application sets the connecting head 1 as a detachable inner nested cylinder 2 and a clamping part 3. During operation, the smaller inner nested cylinder 2 can be first placed on the fan blade shaft, and then the rocker 5 can be held to extend the clamping part 3 into the narrow space where the fan blade shaft is located, so that the clamping part 3 is cross-connected with the inner nested cylinder 2, thereby avoiding the operator from moving the entire rocker arm wrench into the narrow space where the fan blade shaft is located to assemble it with the fan blade shaft at the beginning, further reducing the operator's operating difficulty.

[0049] Furthermore, there are at least two clamping planes 22. This application does not limit the specific number of clamping planes 22, and any technical solution that uses a planar fitting structure to limit the relative rotation of the inner nested cylinder 2 and the clamping member 3 is within the scope of protection of this application.

[0050] refer to Figure 2 and Figure 3In some embodiments, there are two clamping planes 22 and two clamping planes 32, respectively. The two clamping planes 22 are arranged opposite to each other and are parallel to each other. The two clamping planes 32 are arranged opposite to each other and are parallel to each other. The spacing between the two clamping planes 32 is equal to the spacing between the two clamping planes 22. When the inner nested tube 2 is inserted into the clamping opening 31, one clamping plane 32 is aligned with one clamping plane 22, and the other clamping plane 32 is aligned with the other clamping plane 22. By providing two symmetrical clamping planes 22 on the outer wall of the inner nested tube 2, the inner nested tube 2 can be subjected to balanced force when the clamping member 3 applies torque to the inner nested tube 2.

[0051] refer to Figure 4 In other embodiments, the number of the clamping planes 22 is six, and each clamping plane 22 is parallel to the axis of the hole body 21. The six clamping planes 22 enclose a regular hexagon, and the two clamping planes 22 arranged opposite to each other are parallel to each other. The number of the clamping planes 32 is two, and the two clamping planes 32 are arranged opposite to each other and parallel to each other. The spacing between the two clamping planes 32 is equal to the spacing between the two clamping planes 22 arranged opposite to each other. By providing six clamping planes 22 on the outer wall of the inner nesting tube 2, it is convenient for the operator to adjust the gripping angle of the rocker 5. When the operator rotates the fan blade shaft to a certain angle, if he feels that the angle of the rocker 5 is inconvenient to hold or apply force, he can adjust it along Figure 4 Move the rocker 5 and the clamping member 3 in the Y direction shown in the figure to remove the inner sleeve 2 from the clamping opening 31, and then adjust the gripping angle of the rocker 5. After the adjustment is completed, the clamping member 3 is plugged into the inner sleeve 2 so that the other two oppositely arranged clamping surfaces 22 are respectively aligned with the two clamping surfaces 32, thereby driving the inner sleeve 2 and the fan blade shaft to continue rotating. This facilitates the operator to better apply torque to the rocker wrench, further reducing the operator's operating difficulty.

[0052] For further reference, Figure 2 and Figure 3 A gasket 6 is provided in the hole body 21, and the outer circumference of the gasket 6 is in contact with the inner circumference of the hole body 21. The gasket 6 is made of a flexible material. For example, the gasket 6 can be made of rubber or silicone, and the wall thickness of the gasket 6 can be 2 mm.

[0053] When the fan blade shaft is inserted into hole 21, washer 6 is positioned over the outer circumference of the fan blade shaft, with the inner diameter of washer 6 forming an interference fit with the diameter of the fan blade shaft. By placing washer 6 within hole 21, the present invention allows the washer 6 to tightly wrap around the inserted fan blade shaft, thereby tightening the fan blade shaft and increasing the force applied to the fan blade shaft during rotation. Furthermore, the placement of washer 6 prevents direct contact between the fan blade shaft and the inner wall of hole 21, thereby preventing wear on the fan blade shaft.

[0054] For further reference, Figure 1 A handle 7 is provided on the free end 52 of the rocker arm 5, distal from the connector 1. The handle 7 extends perpendicularly to the direction of extension of the rocker arm 5. When turning the rocker arm wrench, the operator can grip the handle 7 for easier operation. For example, the rocker arm 5 and the clamping member 3, as well as the handle 7 and the rocker arm 5, can be fixedly connected by bolts.

[0055] The inventor has proved through practice that by using the rocker arm wrench provided in this application to rotate the fan blade shaft, the current time for installing the lifting belt can be reduced from 4.5 hours to 2 hours, and only one person is required to operate it, thereby greatly reducing labor intensity and eliminating safety hazards.

[0056] Although the present invention has been illustrated and described with reference to certain preferred embodiments of the present invention, it should be understood by those skilled in the art that the above description is provided to further illustrate the present invention in conjunction with specific embodiments, and that the present invention should not be construed as being limited to these descriptions. Those skilled in the art may make various changes in form and detail, including simple deductions or substitutions, without departing from the spirit and scope of the present invention.

Claims

1. A rocker wrench for rotating the fan blade shaft on a reduction motor, characterized in that: The rocker arm wrench comprises: A connector having a hole extending therethrough, wherein the fan blade shaft can be inserted into the hole; a locking member, provided on the connecting head, for locking the fan blade shaft inserted into the hole body, so as to limit the relative rotation of the fan blade shaft in the hole body; A rocker, an end of which is connected to the connector, and the rocker extends along the radial direction of the hole body.

2. The rocker arm wrench according to claim 1, wherein: The connector includes: An inner nested cylinder, the hole body is provided on the inner nested cylinder, and at least one clamping plane is provided on the outer wall of the inner nested cylinder, and the clamping plane is parallel to the axis of the hole body; The clamping piece has a clamping opening on its side wall, and the inner nested tube can be inserted into the clamping opening. At least one clamping plane is provided on the inner wall of the clamping opening. When the inner nested tube is inserted into the clamping opening, the clamping plane is in contact with the clamping plane; the end of the rocker is connected to the clamping piece.

3. The rocker arm wrench according to claim 2, characterized in that: There are two clamping planes and two clamping planes, and the two clamping planes are arranged back to back and parallel to each other; the two clamping planes are arranged opposite to each other and parallel to each other; when the inner nested tube is inserted into the clamping mouth, one clamping plane is in contact with one clamping plane, and the other clamping plane is in contact with the other clamping plane.

4. The rocker arm wrench according to claim 2, wherein: There are two clamping planes, and the two clamping planes are arranged opposite to each other and parallel to each other; there are six clamping planes, and each clamping plane is parallel to the axis of the hole body. The six clamping planes form a hexagon, and the two clamping planes arranged opposite to each other are parallel to each other.

5. The rocker arm wrench according to claim 2, wherein: The inner nesting cylinder and the clamping piece are both made of stainless steel.

6. The rocker arm wrench according to claim 2, wherein: The clamping plane is provided with a threaded hole penetrating the side wall of the hole body, and the clamping plane is provided with a clearance opening penetrating the side wall of the clamping opening. When the inner nested cylinder is inserted into the clamping opening, the threaded hole is located within the projection range of the clearance opening on the clamping plane. The locking member is a bolt, which can be threadedly connected to the threaded hole after passing through the clearance opening; when the locking member is locked, the end of the locking member abuts against the circumferential surface of the fan blade shaft to limit the rotation of the fan blade shaft in the hole body.

7. The rocker arm wrench according to claim 2, wherein: A gasket is provided in the hole body, and the outer circumferential surface of the gasket is in contact with the inner circumferential surface of the hole body.

8. The rocker arm wrench according to claim 7, wherein: The wall thickness of the gasket is 2mm.

9. The rocker arm wrench according to claim 7, wherein: The gasket is made of rubber or silicone.

10. The rocker arm wrench according to any one of claims 1 to 9, characterized in that: A handle is provided at one end of the rocker away from the connecting head, and an extending direction of the handle is perpendicular to an extending direction of the rocker.

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