Ratchet wrench
By setting markings on the output shaft of the ratchet wrench, the problem of inaccurate socket alignment is solved, enabling quick and accurate socket fitting and bolt orientation control, thus improving work efficiency and aesthetics.
Patent Information
- Application Number
- CN202410997608.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-24
- Publication Date
- 2026-01-27
AI Technical Summary
Ratchet wrenches with sockets installed cannot see the grooves of the sockets during use, requiring repeated rotation for alignment and reducing work efficiency.
A mark is set at the other end of the output shaft to identify the position and orientation of the inner contour of the sleeve polygon, ensuring that the sleeve is accurately fitted onto the fastener.
It improves the operator's work efficiency, ensures that the socket can be quickly and accurately fitted onto the bolt or nut, and controls the orientation of the bolt during tightening to achieve a uniform and aesthetically pleasing result.
Smart Images
Figure CN121403291A_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of power tool technology, and in particular to a ratchet wrench. Background Technology
[0002] A ratchet wrench with a socket is a widely used power tool that can tighten and loosen nuts and bolts of different sizes, and can more accurately control torque to ensure the accuracy of tightening.
[0003] However, ratchet wrenches with sockets cannot see the grooves of the sockets during use, so they need to be rotated repeatedly for alignment, which reduces work efficiency. Summary of the Invention
[0004] In view of this, the present application provides a ratchet wrench to solve at least one problem existing in the background art.
[0005] In a first aspect, embodiments of this application provide a ratchet wrench, the ratchet wrench comprising:
[0006] The handle portion for the operator to grip;
[0007] The head is connected to one end of the handle portion, and the head has a mounting through hole, the axis of which is perpendicular to the axis of the handle portion;
[0008] An output shaft is fitted into the mounting through hole, and the axis of the output shaft is collinear with the axis of the mounting through hole;
[0009] A ratchet assembly includes a ratchet ring and a pawl, the pawl engaging the ratchet ring, the ratchet ring being connected to the head and opposite to the mounting through hole, and the pawl being fitted into the output shaft;
[0010] A sleeve, one end of which is fitted onto one end of the output shaft, and the axis of the sleeve is collinear with the axis of the output shaft. The other end of the sleeve has a polygonal inner contour, which is configured to fit fasteners to transmit torque.
[0011] The other end of the output shaft is marked with a marker, which is used to identify the position and orientation of the inner contour of the polygon.
[0012] In conjunction with the first aspect of this application, in an alternative embodiment, the identifier is one or more of numbers, patterns, letters, and scales.
[0013] In conjunction with a first aspect of this application, in an alternative embodiment, the identifier is a polygonal structure present at the other end of the output shaft, wherein the polygonal structure is aligned with the inner contour of the polygon in the axial direction of the output shaft.
[0014] In conjunction with the first aspect of this application, in an optional embodiment, the inner contour of the polygon is a regular hexagonal inner contour;
[0015] The identifier includes a first identifier, which is a regular hexagonal structure. In the axial direction of the output shaft, the regular hexagonal structure is aligned with the inner contour of the regular hexagon to identify the position and orientation of the inner contour of the regular hexagon through the regular hexagonal structure.
[0016] In conjunction with the first aspect of this application, in an optional embodiment, the inner contour of the polygon is a regular hexagonal inner contour;
[0017] The identifier includes a second identifier, which is an equilateral triangle structure. In the axial direction of the output shaft, the three sides of the equilateral triangle structure are respectively aligned with the three alternating sides of the inner contour of the regular hexagon, so as to identify the position and orientation of the inner contour of the regular hexagon through the equilateral triangle structure.
[0018] In conjunction with the first aspect of this application, in an alternative embodiment, the identifier includes a third identifier, the third identifier being at least one graphic on the other end face of the output shaft, the graphic corresponding to the apex corner of the inner contour of the polygon in the axial direction of the output shaft.
[0019] In conjunction with the first aspect of this application, in an optional embodiment, the identifier includes a fourth identifier, the fourth identifier being an alignment block formed by extending from the end face of the other end of the output shaft, and the alignment block being positioned opposite the graphic.
[0020] In conjunction with the first aspect of this application, in an alternative embodiment, the ratchet wrench further includes a connector;
[0021] One end of the output shaft has a first mounting portion, and one end of the sleeve has a second mounting portion. The second mounting portion matches the first mounting portion, and the output shaft and the sleeve are connected by the connector.
[0022] In conjunction with the first aspect of this application, in an optional embodiment, the connector is an elastic protrusion fitted into the first mounting portion, the second mounting portion having a slot, the elastic protrusion matching the slot, such that the output shaft is connected to the sleeve, and the side or apex of the polygonal inner contour corresponds to the mark.
[0023] In conjunction with the first aspect of this application, in an optional embodiment, the connector is a pin;
[0024] The first mounting part has a first mounting hole that is disposed opposite to each other, and the second mounting part has a second mounting hole that is disposed opposite to each other. The pin is inserted into the first mounting hole and the second mounting hole so that the output shaft is connected to the sleeve, and the axis of the pin is parallel to the diagonal of the inner contour of the polygon.
[0025] The ratchet wrench provided in this embodiment has a marking on the other end of the output shaft. This marking can identify the position and orientation of the polygonal inner contour of the socket, allowing the operator to accurately fit the socket onto the nut or bolt, thus further improving work efficiency. Simultaneously, when tightening bolts, the operator can control the orientation of the upper hexagonal face of the bolt after tightening based on the marking's position and orientation, achieving a neat and uniform appearance.
[0026] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description
[0027] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:
[0028] Figure 1 This is a three-dimensional schematic diagram of the overall structure of the ratchet wrench provided in the embodiments of this application;
[0029] Figure 2 This is an exploded perspective view of the ratchet wrench provided in the embodiments of this application;
[0030] Figure 3 for Figure 1 Enlarged view of point A in the middle;
[0031] Figure 4a A schematic diagram of the structure of the output shaft with a first identifier in a ratchet wrench provided in an embodiment of this application;
[0032] Figure 4b A schematic diagram of the structure of the output shaft with a second identifier in a ratchet wrench provided in an embodiment of this application;
[0033] Figure 4c A schematic diagram of the structure of an output shaft in a ratchet wrench that simultaneously has a first mark and a second mark, provided in an embodiment of this application;
[0034] Figure 4d A schematic diagram of the structure of an output shaft in a ratchet wrench that simultaneously has a third and a fourth identifier, provided in an embodiment of this application;
[0035] Figure 4eA schematic diagram of the structure of the output shaft with a fourth identifier in a ratchet wrench provided in an embodiment of this application;
[0036] Figure 5 An exploded view of the output shaft, socket, and forward / reverse switch of the ratchet wrench provided in the embodiments of this application;
[0037] Figure 6 for Figure 1 The image shows a partial structural cross-sectional view of a ratchet wrench.
[0038] Figure label:
[0039] a. Bolt;
[0040] 10. Handle part; 20. Head; 210. Mounting through hole; 30. Output shaft; 3a. Output shaft axis; 310. Mark; 311. First mark; 312. Second mark; 313. Third mark; 314. Fourth mark; 320. First mounting part; 330. Positioning pin;
[0041] 40. Sleeve; 410. Polygonal inner contour; 420. Second mounting part; 421. Slot;
[0042] 50. Ratchet assembly; 510. Pawl; 520. Ratchet ring; 530. Forward / reverse switch button;
[0043] 610. Elastic protrusion; 611. Bead; 612. Spring. Detailed Implementation
[0044] Exemplary embodiments of the present application will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present application are shown in the drawings, it should be understood that the present application may be implemented in various forms and should not be limited to the specific embodiments set forth herein. Rather, these embodiments are provided to enable a more thorough understanding of the present application and to fully convey the scope of the disclosure of the present application to those skilled in the art.
[0045] In the following description, numerous specific details are set forth in order to provide a more thorough understanding of this application. However, it will be apparent to those skilled in the art that this application can be practiced without one or more of these details. In other instances, to avoid confusion with this application, some technical features well-known in the art have not been described; that is, not all features of actual embodiments are described herein, nor are well-known functions and structures described in detail.
[0046] In the accompanying drawings, for clarity, the dimensions of layers, areas, and elements, as well as their relative dimensions, may be exaggerated. The same reference numerals denote the same elements throughout.
[0047] It should be understood that when an element or layer is referred to as "on," "adjacent to," "connected to," or "coupled to" other elements or layers, it may be directly on, adjacent to, connected to, or coupled to other elements or layers, or there may be intervening elements or layers. Conversely, when an element is referred to as "directly on," "directly adjacent to," "directly connected to," or "directly coupled to" other elements or layers, there are no intervening elements or layers. It should be understood that although the terms first, second, third, etc., may be used to describe various elements, components, areas, layers, and / or portions, these elements, components, areas, layers, and / or portions should not be limited by these terms. These terms are only used to distinguish one element, component, area, layer, or portion from another element, component, area, layer, or portion. Therefore, without departing from the teachings of this application, the first element, component, area, layer, or portion discussed below may be referred to as a second element, component, area, layer, or portion. And the discussion of a second element, component, area, layer, or portion does not imply that the first element, component, area, layer, or portion necessarily exists in this application.
[0048] Spatial relation terms such as “below,” “under,” “below,” “under,” “above,” “above,” etc., are used herein for convenience of description to describe the relationship between one element or feature shown in the figure and other elements or features. It should be understood that, in addition to the orientation shown in the figure, spatial relation terms are intended to also include different orientations of the device in use and operation. For example, if the device in the figure is flipped, then the element or feature described as “below,” “under,” or “below” other elements or features will be oriented “above” other elements or features. Therefore, the exemplary terms “below” and “under” can include both above and below orientations. The device may be otherwise oriented (rotated 90 degrees or otherwise) and the spatial descriptive terms used herein will be interpreted accordingly.
[0049] The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of this application. When used herein, the singular forms “a,” “an,” and “the” are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the terms “comprising” and / or “including,” when used in this specification, identify the presence of the stated features, integers, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups. When used herein, the term “and / or” includes any and all combinations of the associated listed items.
[0050] To fully understand this application, detailed steps and structures will be presented in the following description to illustrate the technical solution of this application. Preferred embodiments of this application are described in detail below; however, in addition to these detailed descriptions, this application may have other implementation methods.
[0051] like Figures 1 to 3 As shown, this application provides a ratchet wrench, including a handle portion 10, a head 20, an output shaft 30, a ratchet assembly 50, and a socket 40.
[0052] The handle 10 is for the operator to grip. A head 20 is connected to one end of the handle 10 and extends in the same direction. The head 20 has a mounting through hole 210, the axis of which is perpendicular to the axis of the handle 10. The output shaft 30 is fitted into the mounting through hole 210. Figure 2 The axis 3a shown is the axis of the mounting through hole 210, and also the axis of the sleeve 40 and the output shaft 30.
[0053] like Figure 3 As shown, the ratchet assembly 50 includes a ratchet ring 520 and a pawl 510. The pawl 510 engages with the ratchet ring 520. The ratchet ring 520 is connected to the head 20 and is positioned opposite to the mounting through hole 210. The pawl 510 is fitted into the output shaft 30. Under the action of an external force, the pawl 510 moves relative to the ratchet ring 520, causing the output shaft 30 to rotate around its axis.
[0054] One end of the sleeve 40 is sleeved onto one end of the output shaft 30, and the axis of the sleeve 40 is collinear with the axis of the output shaft 30. The other end of the sleeve 40 has a polygonal inner profile 410, which is configured to match fasteners to transmit torque.
[0055] When using a ratchet wrench, the polygonal inner contour 410 is located below the plane of the handle portion 10. The operator cannot determine the position and orientation of the polygonal inner contour 410 of the socket 40. Therefore, when fitting the socket 40 onto the fastener, accurate alignment is impossible, sometimes requiring multiple rotations to fit the socket 40 onto the fastener, thus affecting work efficiency. Fasteners are generally bolts or nuts, but are not limited to these.
[0056] To solve the above-mentioned technical problems, this application embodiment provides a mark 310 at the other end of the output shaft 30. When the operator uses the ratchet wrench, the position and posture of the polygonal inner contour 410 can be identified through the mark 310 at the other end of the output shaft 30, so that the socket 40 can be accurately fitted onto the fastener, thereby improving work efficiency.
[0057] In an optional embodiment, the ratchet wrench further includes a motor assembly (not shown) and a transmission assembly (not shown). The motor assembly is connected to the transmission assembly, and the transmission assembly is connected to the ratchet assembly 50. The transmission assembly drives the ratchet ring 520 to reciprocate under the driving force of the motor assembly.
[0058] In an optional embodiment, the identifier 310 can be one or more of numbers, patterns, letters, and scales. The identifier 310 provided at the other end of the output shaft 30 can be used to identify the position and orientation of the polygonal inner contour 410 of the sleeve 40, and the types of identifier 310 are not limited to this.
[0059] Generally, bolts or nuts are hexagonal. The hexagonal structure facilitates operation and is more conducive to the transmission of torsional torque.
[0060] Based on this, the identifier 310 is a polygonal structure at the other end of the output shaft 30, and the polygonal structure is aligned with the inner contour 410 of the polygon in the direction of the output shaft axis 3a. It can be understood that the position and orientation of the polygonal structure seen by the operator when using the ratchet wrench corresponds to the position and orientation of the inner contour 410 of the polygon of the socket 40. Based on the polygonal structure on the output shaft 30, the socket 40 can be accurately fitted onto the bolt a or nut.
[0061] In an alternative embodiment, such as Figure 1 As shown, the inner contour 410 of the polygon is a regular hexagonal inner contour; the identifier 310 includes a first identifier 311, which is a regular hexagonal structure. In the direction of the output shaft axis 3a, the regular hexagonal structure is aligned with the regular hexagonal inner contour so as to identify the position and orientation of the regular hexagonal inner contour through the regular hexagonal structure.
[0062] The inner contour of the regular hexagon and the first identifier 311 of the regular hexagon structure have a one-to-one correspondence, that is, the six sides and the six vertices are aligned respectively. The position and posture of the hexagonal inner contour on the sleeve 40 can be accurately identified by the hexagonal structure set on the output shaft 30, so that the sleeve 40 can be accurately fitted onto the bolt a or nut, thereby improving work efficiency.
[0063] In an alternative embodiment, such as Figure 2 and Figure 4a As shown, identifier 310 includes a second identifier 312, which is an equilateral triangle structure, located on the output shaft axis 3a, i.e. Figure 2 In the axial direction shown, the three sides of the equilateral triangle structure are respectively aligned with the three alternating sides of the inner contour of the regular hexagon, so as to identify the position and orientation of the inner contour of the regular hexagon through the equilateral triangle structure.
[0064] Furthermore, such as Figure 2 and Figure 4bAs shown, the identifier 310 includes a third identifier 313, which is at least one graphic on the other end face of the output shaft 30, and the graphic corresponds to the apex corner of the polygonal inner contour 410 in the direction of the output shaft axis 3a.
[0065] The pattern includes a protrusion or groove provided on the end face of the other end of the output shaft 30. The specific shape of the protrusion or groove is not limited in the embodiments of this application. As an example, Figure 4b The third identifier 313 is a circular protrusion, which is opposite to the apex of the polygonal inner contour 410 of the sleeve 40, so as to identify the position and orientation of the polygonal inner contour 410 of the sleeve 40 through the circular protrusion.
[0066] like Figure 4c As shown, in this embodiment of the application, the output shaft 30 may be provided with a second mark 312 and a third mark 313 to provide an identification mark 310 for the operator, so that the operator can accurately fit the sleeve 40 onto the bolt a or nut based on the second mark 312 and the third mark 313.
[0067] In an alternative embodiment, such as Figure 4d As shown, the identifier 310 includes a fourth identifier 314, which is an alignment block formed by extending from the end face of the other end of the output shaft 30, and the alignment block is opposite to the graphic position.
[0068] like Figure 4e As shown, the output shaft 30 only has a fourth identifier 314. The position and orientation of the polygonal inner contour 410 can be identified solely by the fourth identifier 314. The extension direction of the alignment block is the diagonal direction of the polygonal inner contour 410, which can identify the position and orientation of the polygonal inner contour 410 on the sleeve 40.
[0069] In an alternative embodiment, such as Figure 5 and Figure 6 As shown, the ratchet wrench also includes a connector for connecting the output shaft 30 to the sleeve 40. One end of the output shaft 30 has a first mounting portion 320, and one end of the sleeve 40 has a second mounting portion 420. The second mounting portion 420 matches the first mounting portion 320, and the output shaft 30 and the sleeve 40 are connected by the connector.
[0070] As an example, the first mounting part 320 has a square head, and the second mounting part 420 has a square hole that matches the square head. The second mounting part 420 is fitted onto the first mounting part 320 and connected by a connector.
[0071] Specifically, the connector is an elastic protrusion 610, which is fitted into the first mounting part 320. The second mounting part 420 has a slot 421, and the elastic protrusion 610 matches the slot 421 so that the output shaft 30 is connected to the sleeve 40, and the side or apex of the polygonal inner contour 410 corresponds to the mark 310.
[0072] Based on the output shaft 30, a sleeve 40 is matched with bolts a or nuts of different sizes. The sleeve 40 is frequently disassembled, and the elastic protrusion 610 facilitates the disassembly and assembly of the sleeve 40.
[0073] Figure 6 The image shows an elastic protrusion 610 including a ball 611 and a spring 612. One end of the spring 612 is connected to the ball 611. When the sleeve 40 is fitted onto the output shaft 30, the ball 611 is engaged in the slot 421 so that the output shaft 30 is connected to the sleeve 40.
[0074] In an optional embodiment, the connector is a pin. The first mounting portion 320 has a first mounting hole disposed opposite to each other, and the second mounting portion 420 has a second mounting hole disposed opposite to each other. The pin is inserted into the first mounting hole and the second mounting hole so that the output shaft 30 is connected to the sleeve 40, and the axis of the pin is parallel to the diagonal of the polygonal inner contour 410.
[0075] It should be noted that when connecting the sleeve 40 to the output shaft 30, attention should be paid to the correspondence between the marking 310 and the inner contour 410 of the polygon. Setting the axis of the pin to be parallel to the diagonal of the inner contour 410 of the polygon, that is, the axes of the first mounting hole and the second mounting hole being parallel to the diagonal of the inner contour 410 of the polygon, can avoid the situation where the marking 310 cannot correspond to the inner contour 410 of the polygon during the installation of the sleeve 40 to the output shaft 30.
[0076] In an alternative embodiment, such as Figure 5 As shown, the ratchet assembly 50 also includes a forward / reverse switch 530. The output shaft 30 is provided with a receiving cavity for accommodating the forward / reverse switch 530. The output shaft 30 also has a locating pin 330, which is located within the receiving cavity and is connected to the pawl 510. The forward / reverse switch 530 has a mounting hole that matches the locating pin 330. Rotating the forward / reverse switch 530 can drive the locating pin 330 to rotate the pawl 510, thereby realizing the forward and reverse operation of the ratchet wrench.
[0077] It should be understood that the above embodiments are exemplary and are not intended to encompass all possible implementations included in the claims. Various modifications and changes can be made to the above embodiments without departing from the scope of this disclosure. Similarly, the various technical features of the above embodiments can be arbitrarily combined to form other embodiments of this application that may not be explicitly described. Therefore, the above embodiments only illustrate several implementations of this application and do not limit the scope of protection of this patent application.
Claims
1. A ratchet wrench, characterized in that, include: The handle portion for the operator to grip; The head is connected to one end of the handle portion, and the head has a mounting through hole, the axis of which is perpendicular to the axis of the handle portion; An output shaft is fitted into the mounting through hole, and the axis of the output shaft is collinear with the axis of the mounting through hole; A ratchet assembly includes a ratchet ring and a pawl, the pawl engaging the ratchet ring, the ratchet ring being connected to the head and opposite to the mounting through hole, and the pawl being fitted into the output shaft; A sleeve, one end of which is fitted onto one end of the output shaft, and the axis of the sleeve is collinear with the axis of the output shaft. The other end of the sleeve has a polygonal inner contour, which is configured to fit fasteners to transmit torque. The other end of the output shaft is marked with a marker, which is used to identify the position and orientation of the inner contour of the polygon.
2. The ratchet wrench according to claim 1, characterized in that, The identifier can be one or more of the following: numbers, patterns, letters, and scales.
3. The ratchet wrench according to claim 1 or 2, characterized in that, The identifier is a polygonal structure present at the other end of the output shaft, wherein the polygonal structure is aligned with the inner contour of the polygon along the axial direction of the output shaft.
4. The ratchet wrench according to claim 3, characterized in that, The inner contour of the polygon is a regular hexagonal inner contour; The identifier includes a first identifier, which is a regular hexagonal structure. In the axial direction of the output shaft, the regular hexagonal structure is aligned with the inner contour of the regular hexagon to identify the position and orientation of the inner contour of the regular hexagon through the regular hexagonal structure.
5. The ratchet wrench according to claim 3, characterized in that, The inner contour of the polygon is a regular hexagonal inner contour; The identifier includes a second identifier, which is an equilateral triangle structure. In the axial direction of the output shaft, the three sides of the equilateral triangle structure are respectively aligned with the three alternating sides of the inner contour of the regular hexagon, so as to identify the position and orientation of the inner contour of the regular hexagon through the equilateral triangle structure.
6. The ratchet wrench according to claim 1 or 5, characterized in that, The identifier includes a third identifier, which is at least one graphic on the other end face of the output shaft, and the graphic corresponds to the apex corner of the inner contour of the polygon in the axial direction of the output shaft.
7. The ratchet wrench according to claim 6, characterized in that, The identifier includes a fourth identifier, which is an alignment block formed by extending from the end face of the other end of the output shaft, and the alignment block is positioned opposite the graphic.
8. The ratchet wrench according to claim 1, characterized in that, It also includes connectors; One end of the output shaft has a first mounting portion, and one end of the sleeve has a second mounting portion. The second mounting portion matches the first mounting portion, and the output shaft and the sleeve are connected by the connector.
9. The ratchet wrench according to claim 8, characterized in that, The connector is an elastic protrusion, which is fitted into the first mounting part. The second mounting part has a slot, and the elastic protrusion matches the slot so that the output shaft is connected to the sleeve, and the side or apex of the polygonal inner contour corresponds to the mark.
10. The ratchet wrench according to claim 8, characterized in that, The connecting component is a pin; The first mounting part has a first mounting hole that is disposed opposite to each other, and the second mounting part has a second mounting hole that is disposed opposite to each other. The pin is inserted into the first mounting hole and the second mounting hole so that the output shaft is connected to the sleeve, and the axis of the pin is parallel to the diagonal of the inner contour of the polygon.