impact tool

Abstract

Impact tool, comprising a connecting rod (1) having a first end (11) and a second end (12) which are opposite one another, wherein a threaded portion (13) is provided at the first end (11), wherein the threaded portion (13) serves for screwing onto an object (4) to be loosened, and wherein a receiving recess (14) is provided at the second end (12); and an impact rod (2) having a shaft (21), a working portion (22) and an impact head (23), wherein the working portion (22) and the impact head (23) are located at two opposite ends of the shaft (21), and wherein the working portion (22) is rotatably received in the receiving recess (14) such that the impact rod (2) can be rotated relative to the connecting rod (1).

Description

Technical area

[0001] The invention relates to the field of maintenance tools, in particular an impact tool. State of the art

[0002] In mechanical devices, components are often connected by penetration or locking, such as the ball joint of a car. When two components need to be joined or separated, this is usually done by tapping, as it requires only a hammer and has the advantages of ease of use, low cost, and speed. Furthermore, the tapping force helps loosen stuck or rusted parts between the two components, which is why this method is often used by maintenance personnel.

[0003] However, direct impact with a hammer has many disadvantages, such as the difficulty of accurately controlling the impact point and force, the easy damage and deformation of the struck object, and the difficulty for inexperienced workers to accurately estimate the impact angle, etc.

[0004] Therefore, it is necessary to provide a novel and advanced impact tool to solve the above problems. Object of the invention

[0005] The object of the invention is to provide an impact tool that is connected to the object to be released by a connecting rod and transmits the impact force via the impact rod to the connecting rod. This method allows the impact force to be evenly transmitted to the object to be released, ensuring its structural integrity. Furthermore, the impact rod can be rotated relative to the connecting rod, allowing the user to choose from a wider range of impact angles.

[0006] This object is achieved by the impact tool comprising: a connecting rod having a first end and a second end which are opposite to each other, wherein a threaded portion is provided at the first end, wherein the threaded portion serves for screwing with an object to be loosened, and wherein a receiving recess is provided at the second end; and an impact rod having a shaft, a working portion and an impact head, wherein the working portion and the impact head are located at two opposite ends of the shaft, and wherein the working portion is rotatably received in the receiving recess so that the impact rod can be rotated relative to the connecting rod. Short description of the drawings Fig. 1 a perspective view of the embodiment of the invention, Fig. 2 an exploded view according to Fig. 1, Fig. 3 a representation from a different viewing direction according to Fig. 2 Fig. 4 a sectional view according to Fig. 1, Fig. 5 is a view showing the state of use of the embodiment of the invention. Ways to implement the invention

[0007] The following embodiments serve only to illustrate the possible implementation of this invention; they are not intended to limit the scope of the invention. The term "one" or "at least one" before the nouns mentioned in the article does not limit the quantity. A "plurality" is also possible as needed. Changes to this number are also within the scope of the invention.

[0008] Fig. Figures 1 to 5 show an embodiment of the invention. The impact tool of the invention comprises a connecting rod 1 and an impact rod 2.

[0009] The connecting rod 1 has a first end 11 and a second end 12, which are opposite one another. A threaded portion 13 is provided at the first end 11. The threaded portion 13 serves to screw onto an object 4 to be loosened. The object 4 to be loosened is, for example, but not limited to, a ball joint. A receiving recess 14 is provided at the second end 12. The impact rod 2 has a shaft 21, a working portion 22, and an impact head 23. The working portion 22 and the impact head 23 are located at two opposite ends of the shaft 21. The working portion 22 is rotatably received in the receiving recess 14 so that the impact rod 2 can be rotated relative to the connecting rod 1, allowing the user to adjust the desired impact angle as needed. The impact head 23 can be connected to an impact tool.

[0010] In this embodiment, the maximum radial dimension of the impact rod 2 is smaller than the maximum radial dimension of the connecting rod 1 to ensure that the connecting rod 1 has a larger structural dimension to withstand the impact force. In addition, the length of the impact rod 2 is longer than that of the connecting rod 1, so that the impact rod 2 can be inserted into a narrow space. In addition, in the radial direction of the connecting rod 1, the dimension of the receiving recess 14 is larger than the dimension of the working portion 22, so that the working portion 22 has a larger movement space and the impact rod 2 can have a larger pivoting range, wherein the working portion 22 is a spherical head.

[0011] Preferably, the working section 22 is removably inserted into the receiving recess 14 to facilitate storage when not in use.

[0012] Preferably, the radial dimension of the second end 12 is not smaller than the radial dimension of the first end 11 to ensure that the second end 12 has a certain structural strength to withstand the impact force of the impact rod 2.

[0013] When the working section 22 is received in the receiving recess 14, a portion of the shaft 21 simultaneously projects into the receiving recess 14. When the impact rod 2 is then rotated to the limit position relative to the connecting rod 1, the shaft 21 rests laterally against the edge of the receiving recess 14. In this way, the edge of the receiving recess 14 can exert a lateral supporting force on the impact rod 2 during impact in the limit position to ensure a stable impact.

[0014] When the connecting rod 1 and the impact rod 2 are coaxial, the length of the part of the shaft 21 in the axial direction of the connecting rod 1 that is located in the receiving recess 14 is defined as the first dimension 31, and the length of the working portion 22 in the axial direction of the connecting rod 1 is defined as the second dimension 32. The second dimension 32 is larger than the first dimension 31. In other words, the part of the shaft 21 in the receiving recess 14 has a smaller dimension to ensure that the impact rod 2 can have a larger pivoting range relative to the connecting rod 1 and the shaft 21 is not blocked or obstructed too early by the edge of the receiving recess 14.

[0015] In this embodiment, the threaded portion 13 is a threaded hole. The threaded portion 13 is not connected to the receiving recess 14. In the axial direction of the connecting rod 1, the length of the receiving recess 14 is shorter than the length of the threaded portion 13. Furthermore, on the side of the second end 12 facing away from the threaded portion 13, an inclined end surface 15 is provided, which surrounds the opening of the receiving recess 14. As the inclined end surface 15 comes closer to the threaded portion 13 in the axial direction of the connecting rod 1, the inclined end surface 15 comes closer to the connecting rod 1 in the radial direction. In this way, the inclined end surface 15 can guide the working portion 22 into the receiving recess 14.

[0016] Preferably, the connecting rod 1 further includes a knurling structure 16. The knurling structure 16 is arranged on the outer surface of the second end 12 so that the user can stably hold the second end 12 with their hand. In this embodiment, the knurling structure 16 is a straight knurl parallel to the axial direction of the connecting rod 1. The length of the knurling structure 16 in the axial direction of the connecting rod 1 is greater than the length of the threaded portion 13.

[0017] The invention thus relates to an impact tool comprising: a connecting rod (1) having a first end (11) and a second end (12) which are opposite one another, wherein a threaded portion (13) is provided at the first end (11), wherein the threaded portion (13) serves for screwing onto an object (4) to be loosened, and wherein a receiving recess (14) is provided at the second end (12); and an impact rod (2) having a shaft (21), a working portion (22) and an impact head (23), wherein the working portion (22) and the impact head (23) are located at two opposite ends of the shaft (21), and wherein the working portion (22) is rotatably received in the receiving recess (14) such that the impact rod (2) can be rotated relative to the connecting rod (1). List of reference symbols 1 connecting rod 11 first end 12 second end 13 Threaded section 14 Recess 15 sloping front surface 16 knurled structure 2 striking rods 21 shaft 22 Work section 23 Impact head 31 first dimension 32 second dimension 4 items to be solved

Claims

[1] Impact tool, comprising a connecting rod (1) having a first end (11) and a second end (12) which are opposite one another, wherein a threaded portion (13) is provided at the first end (11), wherein the threaded portion (13) serves for screwing onto an object (4) to be loosened, and wherein a receiving recess (14) is provided at the second end (12); and an impact rod (2) having a shaft (21), a working portion (22) and an impact head (23), wherein the working portion (22) and the impact head (23) are located at two opposite ends of the shaft (21), and wherein the working portion (22) is rotatably received in the receiving recess (14) so that the impact rod (2) can be rotated relative to the connecting rod (1). [2] Impact tool according to claim 1, characterized by that the working section (22) is removably inserted into the receiving recess (14). [3] Impact tool according to claim 1, characterized by that, when the working section (22) is received in the receiving recess (14), a part of the shaft (21) simultaneously projects into the receiving recess (14), wherein, when the impact rod (2) is then rotated into the limit position relative to the connecting rod (1), the shaft (21) rests laterally on the edge of the receiving recess (14). [4] Impact tool according to claim 3, characterized by that, when the connecting rod (1) and the impact rod (2) are coaxial, the length of the part of the shaft (21) in the axial direction of the connecting rod (1) which is located in the receiving recess (14) is defined as the first dimension (31) and the length of the working section (22) in the axial direction of the connecting rod (1) is defined as the second dimension (32), the second dimension (32) being greater than the first dimension (31). [5] Impact tool according to claim 1, characterized bythat on the side of the second end (12) facing away from the threaded portion (13), an oblique end face (15) is provided which surrounds the opening of the receiving recess (14), wherein, when the oblique end face (15) comes closer to the threaded portion (13) in the axial direction of the connecting rod (1), the oblique end face (15) comes closer to the connecting rod (1) in the radial direction. [6] Impact tool according to claim 1, characterized by that in the axial direction of the connecting rod (1) the length of the receiving recess (14) is smaller than the length of the threaded section (13). [7] Impact tool according to claim 1, characterized by that the radial dimension of the second end (12) is not smaller than the radial dimension of the first end (11). [8] Impact tool according to one of claims 1 to 7, characterized bythat the connecting rod (1) further comprises a knurled structure (16) arranged on the outer surface of the second end (12). [9] Impact tool according to claim 8, characterized by that the length of the knurled structure (16) in the axial direction of the connecting rod (1) is greater than the length of the threaded portion (13). [10] Impact tool according to claim 4, characterized bythat the working section (22) is removably inserted into the receiving recess (14); that on the side of the second end (12) facing away from the threaded section (13), an inclined end face (15) is provided which surrounds the opening of the receiving recess (14), wherein, as the inclined end face (15) comes closer to the threaded section (13) in the axial direction of the connecting rod (1), the inclined end face (15) comes closer to the connecting rod (1) in the radial direction; that in the axial direction of the connecting rod (1), the length of the receiving recess (14) is smaller than the length of the threaded section (13); that the radial dimension of the second end (12) is not smaller than the radial dimension of the first end (11); that the connecting rod (1) further comprises a knurling structure (16) arranged on the outer surface of the second end (12);that the length of the knurled structure (16) in the axial direction of the connecting rod (1) is greater than the length of the threaded portion (13); that the knurled structure (16) is a straight knurl parallel to the axial direction of the connecting rod (1); that the maximum radial dimension of the impact rod (2) is smaller than the maximum radial dimension of the connecting rod (1); that the length of the impact rod (2) is greater than that of the connecting rod (1); that the object to be released (4) is a ball joint; that in the radial direction of the connecting rod (1), the dimension of the receiving recess (14) is greater than the dimension of the working portion (22); and that the working portion (22) is a ball head.;

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