Hexagon wrench

Abstract

The hexagonal wrench comprises multiple levels of hollow cylinders, the previous level of hollow cylinder is nested in the next level of hollow cylinder adjacent to the previous level of hollow cylinder, a limiting clamping block is arranged on the outer wall of the previous level of hollow cylinder, and a limiting clamping groove matched with the limiting clamping block is formed in the inner wall of the next level of hollow cylinder; the front-stage hollow column body slides in the rear-stage hollow column body in a limiting manner along the axial direction; the spring is embedded in the next-stage hollow column body and is used for providing elastic force for the previous-stage hollow column body to protrude out of the next-stage hollow column body; wherein the diameter of the foremost-stage hollow column body is the smallest, and the diameters of the backward-stage hollow column bodies are sequentially increased. Through the multi-stage nested hollow cylinder, the frequency and time for a user to replace tools are greatly reduced, the working effect is improved, the number and size of the tools are reduced, carrying and storage become more convenient and efficient, the user does not need to purchase and maintain a whole set of wrenches of different sizes, cost is saved, and meanwhile resource waste is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of mechanical tools, and in particular to a hexagonal wrench. Background Art

[0002] In the prior art, hexagonal wrenches are usually of a single size, which means that users need a whole set of wrenches to adapt to nuts and bolts of different sizes. This not only increases the number and weight of tools, but also brings inconvenience to users' work and carrying. More specifically, the technical problems include but are not limited to:

[0003] Size limitation: Traditional hexagonal wrenches can only fit one size of bolt, which requires users to buy and store multiple sizes of wrenches;

[0004] Inconvenient to carry: Because multiple sizes of wrenches are required, it takes up more space and weight when carrying and storing;

[0005] Cost issue: Purchasing a complete set of hex wrenches will increase the financial burden on users;

[0006] Work efficiency: During the work process, wrenches of different sizes need to be constantly replaced, which affects work efficiency and results.

[0007] Therefore, in view of the above technical problems, how to provide a convenient and quick hexagonal wrench that can adapt to hexagonal bolts of various sizes is a technical problem that technical personnel in this field need to solve. Utility Model Content

[0008] The purpose of the present application is to provide a hexagonal wrench, which, through a hollow cylinder with one level inside another, enables a single wrench to adapt to internal hexagonal bolts and external hexagonal bolts of various sizes.

[0009] To achieve the above object, the present application provides a hexagonal wrench, comprising:

[0010] A multi-stage hollow cylinder, wherein the hollow cylinder of the previous stage is nested in the hollow cylinder of the next stage adjacent thereto, a limit block is arranged on the outer wall of the hollow cylinder of the previous stage, and a limit slot cooperating with the limit block is arranged on the inner wall of the hollow cylinder of the next stage, so that the hollow cylinder of the previous stage can slide within the hollow cylinder of the next stage along its axial limit;

[0011] A spring, embedded in the hollow cylinder of the latter stage, for providing elastic force for the hollow cylinder of the former stage to protrude out of the hollow cylinder of the latter stage;

[0012] Among them, the diameter of the hollow cylinder in the front stage is the smallest, and the diameter of the hollow cylinder in each subsequent stage increases successively.

[0013] Preferably, the outer ring and the inner ring of the hollow cylinder are both hexagonal structures.

[0014] Preferably, the hollow cylinder of the previous stage can be at least completely embedded in the hollow cylinder of the next stage, so that the end of the hollow cylinder of the previous stage is at least flush with the end of the hollow cylinder of the next stage.

[0015] Preferably, the hollow cylinder of the first stage is inserted into the hexagonal groove of the hexagon socket bolt, and the hollow cylinder of the last stage is continuously pressed. During the pressing process, the hollow cylinder of the first stage is sequentially embedded in the hollow cylinder of the second stage, and there must be a situation where the outer hexagonal structure of one of the hollow cylinders matches the hexagonal groove.

[0016] Preferably, the hollow cylinder matching the hexagonal groove, and the subsequent one or multiple stages of the hollow cylinder abut against the bolt head end face of the hexagon socket bolt, and as the last stage of the hollow cylinder is pressed, the multiple stages of the hollow cylinder are nested in sequence until they cannot be pressed anymore.

[0017] Preferably, the hollow cylinder of the previous stage can be completely embedded in the hollow cylinder of the next stage, and the end of the hollow cylinder of the previous stage is located in the hollow cylinder of the next stage, so that the end of the hollow cylinder of the next stage forms a concave hexagonal groove.

[0018] Preferably, the hollow cylinder of the first stage abuts against the end face of the bolt head of the external hexagonal bolt and continuously presses the hollow cylinder of the last stage. During the pressing process, the hollow cylinder of the first stage is sequentially embedded in the hollow cylinder of the second stage, and there must be a hexagonal structure in one of the hollow cylinders that matches the bolt head of the external hexagonal bolt.

[0019] Preferably, the ends of the previous level or multiple levels of the hollow cylinder matching the bolt head of the external hexagonal bolt are located inside the hollow cylinder, so that the ends of the hollow cylinder are formed in the internal hexagonal groove matching the bolt head of the external hexagonal bolt, and as the last level of the hollow cylinder is pressed, the multiple levels of the hollow cylinder are nested in sequence until they cannot be pressed anymore.

[0020] Preferably, the number of the springs is one less than that of the hollow cylinders, and the springs are located in the other multiple hollow cylinders except the first hollow cylinder. The diameters of the multiple springs increase from the front to the back to adapt to the multiple hollow cylinders with different diameters.

[0021] Compared with the above background technology, the multi-level hollow cylinders of the present application are nested in sequence, the diameter of the hollow cylinder of the first level is the smallest, and the diameter of each level of the hollow cylinder increases in sequence, and by pressing the hollow cylinder of the last level, each level of the hollow cylinder is matched with the inner hexagonal bolt or the outer hexagonal bolt in sequence, until one of the hollow cylinders of one level is successfully matched with the inner hexagonal bolt or the outer hexagonal bolt. And combined with the elastic force provided by the spring, the matching hollow cylinder can be pressed against the inner hexagonal bolt or the outer hexagonal bolt, thereby ensuring the accuracy and safety of the operation and reducing the risk of errors and accidents.

[0022] The present application uses multi-level nested hollow cylinders to greatly reduce the frequency and time of user tool replacement, improve work efficiency, and reduce the number and volume of tools, making carrying and storage more convenient and efficient. At the same time, users do not need to purchase and maintain a whole set of wrenches of different sizes, saving costs and reducing waste of resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0024] Figure 1 A schematic diagram of the overall structure of the hexagonal wrench provided in an embodiment of the present application;

[0025] Figure 2 A schematic diagram of the multi-stage hollow cylinder structure of a hexagonal wrench provided in an embodiment of the present application;

[0026] Figure 3 A schematic diagram of the installation structure of two adjacent hollow cylinders of a hexagonal wrench provided in an embodiment of the present application;

[0027] Figure 4 A schematic diagram of the coordination structure of the limit blocks and limit slots of two adjacent hollow cylinders provided in an embodiment of the present application.

[0028] In the figure: 1, hollow cylinder 11, limit slot 12, limit block 2, spring. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0030] It should be noted that in this embodiment, the directions or positional relationships indicated by "upper", "lower", "front", "back", etc. are based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present application 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, and therefore cannot be understood as limiting the present application. In addition, "first", "second", "third", and "fourth" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0031] In order to enable those skilled in the art to better understand the present application, the present application is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0032] like Figure 1 As shown, in this embodiment, a hexagonal wrench is provided, which can be used for both external hexagonal bolts and internal hexagonal bolts. The wrench includes a multi-stage hollow cylinder 1, and the multi-stage hollow cylinders 1 are nested in sequence; in other words, the multi-stage hollow cylinders 1 are at least two-stage, that is, the previous stage hollow cylinder 1 is nested in the next stage hollow cylinder 1. If there are more than two stages, then multiple hollow cylinders 1 are nested in sequence, which can be specifically analogous to the nesting method of two-stage hollow cylinders 1.

[0033] It should be pointed out that the above-mentioned first level and last level are relative, and are not limited to a single hollow cylinder 1. For example, the first-level hollow cylinder 1 and the second-level hollow body are relative, and the first-level hollow cylinder 1 is the first level, and the second-level hollow cylinder 1 is the last level. Similarly, the second-level hollow body and the third-level hollow body, as well as other two adjacent hollow bodies, can be deduced in this way, and will not be described in detail here.

[0034] In this embodiment, the first-stage hollow cylinder 1 is nested in the adjacent second-stage hollow cylinder 1, and the outer wall of the first-stage hollow cylinder is provided with a limit card block 12, and the inner wall of the second-stage hollow cylinder is provided with a limit card slot 11 that cooperates with the limit card block 12. The limit card block 12 can slide in the limit card slot 11. For details, please refer to Figure 3 and Figure 4 , so that the previous hollow cylinder 1 can slide along its axial limit inside the next hollow cylinder 1. At the same time, the cooperation of the limit block 12 and the limit slot 11 can also prevent the previous hollow cylinder 1 from detaching, thereby improving the stability of the wrench.

[0035] It should be noted that, since the hollow body of the present application adopts a multi-level nested arrangement, there must be a front-most hollow body and a rear-most hollow body, and due to the nested relationship of each level, the diameter of the front-most hollow cylinder 1 is the smallest, and the diameter of each level of the hollow cylinder 1 will increase in sequence, please refer to Figure 1 and Figure 2 .

[0036] A spring 2 is provided on the hollow cylinder 1 at the rear stage, and the spring 2 can abut against the hollow cylinder 1 at the front stage, thereby providing elastic force for the hollow cylinder 1 at the front stage to protrude from the hollow cylinder 1 at the rear stage. In other words, in a natural state, the spring 2 is in a compressed state, and at this time, the hollow cylinder 1 at the front stage, under the action of the spring 2 and in cooperation with the limiting of the limiting slot 11, protrudes outside the hollow cylinder 1 at the rear stage, that is, the end of the hollow cylinder 1 at the front stage is located outside the end of the hollow cylinder 1 at the rear stage.

[0037] In summary of the above embodiments, the present application presses the last level of hollow cylinder 1 to make each level of hollow cylinder 1 be matched with the inner hexagonal bolt or the outer hexagonal bolt in turn, until one level of hollow cylinder 1 is successfully matched with the inner hexagonal bolt or the outer hexagonal bolt. In addition, combined with the elastic force provided by the spring 2, the matched hollow cylinder 1 can be pressed against the inner hexagonal bolt or the outer hexagonal bolt, thereby ensuring the accuracy and safety of the operation and reducing the risk of errors and accidents.

[0038] In this embodiment, the outer ring and the inner ring of the hollow cylinder 1 are both hexagonal, so that the hexagon of the outer ring can match the hexagonal groove of the internal hexagon bolt, and the hexagon of the inner ring can match the hexagonal profile of the bolt head of the external hexagon bolt, so that it can be applied to both external hexagon bolts and internal hexagon bolts.

[0039] In addition, the outer ring and inner ring structures of the above-mentioned hollow cylinder 1 include but are not limited to hexagonal structures, and can also be plum blossom-shaped and other polygonal structures, which can be selected according to the actual application scenario.

[0040] When applied to the hexagon socket bolt, the first-stage hollow cylinder 1 can at least be completely embedded in the second-stage hollow cylinder 1, so that the end of the first-stage hollow cylinder 1 is at least flush with the end of the second-stage hollow cylinder 1; it should be pointed out that, since the hexagonal groove of the hexagon socket bolt has a certain depression, when the hollow cylinder 1 is inserted into the hexagonal groove, the last-stage hollow cylinder 1 is continuously pressed, and then during the pressing process, the first-stage hollow cylinder 1 will be sequentially embedded in the second-stage hollow cylinder 1, until the outer hexagonal structure of one of the first-stage hollow cylinders 1 matches the hexagonal groove, at which time, under the action of the spring 2, the hollow cylinder 1 of this stage will be clamped with the hexagonal groove. Then, under the premise that the first-stage hollow cylinder 1 is flush with the second-stage hollow cylinder 1 under the action of pressing, the hollow cylinder 1 that matches the hexagonal groove will not have a height difference with other hollow cylinders 1 in the hexagonal groove, and can also reach the bottom of the hexagonal groove, achieving a better clamping effect.

[0041] As the last-stage hollow cylinder 1 is continuously pressed, the hollow cylinder 1 matching the hexagonal groove and the subsequent stage or multiple stages of hollow cylinders 1 abut against the bolt head end face of the hexagon socket bolt, so that the hollow cylinder 1 matching the hexagonal groove protrudes relative to the subsequent stage of hollow cylinder 1, satisfying the condition for engagement with the hexagonal groove.

[0042] At the same time, as the last level of hollow cylinder 1 is pressed, multiple levels of hollow cylinders 1 are nested in sequence until they cannot be pressed anymore, at which time all levels of hollow cylinders 1 have completed nesting; since the hollow cylinders 1 are embedded in the hollow cylinder 1 of the next level under the action of external force, the internal void part of the hollow cylinder 1 can be effectively filled, making its strength slightly different from that of the traditional solid hexagonal socket, and also maintaining a high strength for use.

[0043] When applied to an external hexagonal bolt, the first-stage hollow cylinder 1 can be completely embedded in the second-stage hollow cylinder 1, and the end of the first-stage hollow cylinder 1 is located in the second-stage hollow cylinder 1, so that an internal hexagonal groove concave inward is formed at the end of the second-stage hollow cylinder 1. In other words, under external pressure, the first-stage hollow cylinder 1 can be completely embedded in the second-stage hollow cylinder 1, so that an internal hexagonal groove matching the external hexagonal bolt is formed at the second-stage end.

[0044] Specifically, the front-most hollow cylinder 1 is first pressed against the bolt head end face of the external hexagonal bolt. If the front-most hollow cylinder 1 cannot match the external hexagonal bolt at this time, then when it is embedded in the back-most hollow cylinder 1, the back-most hollow cylinder 1 is matched with the external hexagonal bolt again, and so on. The last-most hollow cylinder 1 is continuously pressed. During the pressing process, the front-most hollow cylinder 1 is sequentially embedded in the back-most hollow cylinder 1. After the pressing shrinks to a certain extent, there must be a situation where the inner hexagonal structure of one of the hollow cylinders 1 matches the bolt head of the external hexagonal bolt. Then, the hollow cylinder 1 of this level will be pressed against the bolt head of the external hexagonal bolt under the action of the spring 2 to achieve a clamping effect.

[0045] At this time, the hollow cylinder 1 that matches the bolt head of the external hexagonal bolt has the ends of the previous level or multiple levels of hollow cylinders 1 located inside it, so that an internal hexagonal groove that engages with the external hexagonal bolt is formed at the hollow cylinder 1; and as the last level of hollow cylinder 1 is continuously pressed, the multiple levels of hollow cylinders 1 are nested in sequence until they cannot be pressed anymore, at which time the entire hollow cylinder 1 can be filled with each other in sequence to achieve a higher strength of use.

[0046] It should be noted that the spring 2 is not provided in the hollow cylinder 1 of the first stage, so the number of springs 2 is one less than that of the hollow cylinder 1, and is specifically located in the other multi-stage hollow cylinders 1 except the hollow cylinder 1 of the first stage. The diameters of the multiple springs 2 increase from the front to the back to adapt to the multi-stage hollow cylinders 1 of different diameters. Through the tension of the spring 2, the working part of the wrench can automatically extend and contract to adapt to bolts and nuts of different sizes. Of course, the spring 2 needs to be accurately calculated and designed to ensure that it can be quickly deployed when needed to adapt to different sizes, while having sufficient strength to maintain stability.

[0047] In addition, for the above-mentioned multi-stage hollow cylinder 1, there may also be a situation where the first stage hollow cylinder 1 or the last stage hollow cylinder 1 is directly matched with the inner hexagon bolt or the outer hexagon bolt, which will not be described in detail here, and the details can be referred to the above-mentioned implementation.

[0048] In general, the present application uses a multi-stage hollow cylinder 1, a spring 2, a limit block 12 and a limit slot 11 to automatically use hexagon socket bolts and hexagon socket bolts (nuts) of various sizes, which greatly reduces the frequency and time of tool replacement by users, and due to the adaptive function of the wrench, reduces the number and volume of tools, making them easy to carry and store. In addition, users do not need to purchase and maintain a whole set of wrenches of different sizes, saving costs and reducing resource waste.

[0049] It should be noted that, in this specification, relational terms such as first and second are merely used to distinguish one entity from other entities, but do not necessarily require or imply any actual relationship or order between these entities.

[0050] Specific examples are used herein to illustrate the principles and implementation methods of the present application, and the description of the above embodiments is only used to help understand the method and core ideas of the present application. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the present application, several improvements and modifications can be made to the present application, and these improvements and modifications also fall within the scope of protection of the claims of the present application.

Claims

1. A hexagonal wrench, characterized in that: include: A multi-stage hollow cylinder, wherein the hollow cylinder of the previous stage is nested in the hollow cylinder of the next stage adjacent thereto, a limit block is arranged on the outer wall of the hollow cylinder of the previous stage, and a limit slot cooperating with the limit block is arranged on the inner wall of the hollow cylinder of the next stage, so that the hollow cylinder of the previous stage can slide within the hollow cylinder of the next stage along its axial limit; A spring, embedded in the hollow cylinder of the latter stage, for providing elastic force for the hollow cylinder of the former stage to protrude out of the hollow cylinder of the latter stage; Among them, the diameter of the hollow cylinder in the front stage is the smallest, and the diameter of the hollow cylinder in each subsequent stage increases successively.

2. The hexagonal wrench according to claim 1, characterized in that: The outer ring and the inner ring of the hollow cylinder are both hexagonal structures.

3. The hexagonal wrench according to claim 2, characterized in that: The hollow cylinder of the preceding stage can at least be completely embedded in the hollow cylinder of the succeeding stage, so that the end of the hollow cylinder of the preceding stage is at least flush with the end of the hollow cylinder of the succeeding stage.

4. The hexagonal wrench according to claim 3, characterized in that: The hollow cylinder of the first level is inserted into the hexagonal groove of the hexagon socket bolt, and the hollow cylinder of the last level is continuously pressed. During the pressing process, the hollow cylinder of the first level is sequentially embedded in the hollow cylinder of the second level, and there must be an outer hexagonal structure of one of the hollow cylinders that matches the hexagonal groove.

5. The hexagonal wrench according to claim 4, characterized in that: The hollow cylinder matching the hexagonal groove, and the subsequent one or multiple hollow cylinders abut against the bolt head end face of the hexagon socket bolt, and as the last hollow cylinder is pressed, the multiple hollow cylinders are nested in sequence until they cannot be pressed anymore.

6. The hexagonal wrench according to claim 2, characterized in that: The hollow cylinder of the previous stage can be completely embedded in the hollow cylinder of the next stage, and the end of the hollow cylinder of the previous stage is located in the hollow cylinder of the next stage, so that the end of the hollow cylinder of the next stage forms a concave inner hexagonal groove.

7. The hexagonal wrench according to claim 6, characterized in that The hollow cylinder of the first level is abutted against the end face of the bolt head of the external hexagonal bolt and continuously presses the hollow cylinder of the last level. During the pressing process, the hollow cylinder of the first level is sequentially embedded in the hollow cylinder of the second level, and there must be a hexagonal structure in one of the hollow cylinders that matches the bolt head of the external hexagonal bolt.

8. The hexagonal wrench according to claim 7, characterized in that: The hollow cylinder that matches the bolt head of the external hexagonal bolt has the ends of the previous level or multiple levels of hollow cylinders located inside it, so that the ends of the hollow cylinder are formed in the internal hexagonal groove that matches the bolt head of the external hexagonal bolt, and as the last level of the hollow cylinder is pressed, the multiple levels of the hollow cylinders are nested in sequence until they cannot be pressed anymore.

9. The hexagonal wrench according to any one of claims 1 to 8, characterized in that: The number of the springs is one less than that of the hollow cylinders, and the springs are located in the other multiple hollow cylinders except the first one. The diameters of the multiple springs increase from the front to the back to adapt to the multiple hollow cylinders with different diameters.

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