Connecting piece enabling electric wrench to be used as electric hammer

Abstract

The utility model discloses a connecting piece enabling an electric wrench to be used as an electric hammer, which comprises a connecting column, a reset spring and a pressing sleeve, one end of the connecting column is connected with a wrench power shaft, the other end of the connecting column is connected with a hammer head, the reset spring is sleeved on the outer circle of the connecting column, the pressing sleeve is sleeved with the connecting column, and the reset spring is arranged between the pressing sleeve and the connecting column. According to the technical scheme, the wrench power shaft and the hammer head are connected through the connecting column, pressure towards the hammer head direction is applied to the pressing sleeve through the reset spring, and the pressing sleeve is made to do reciprocating impact motion under the vibration effect, so that the problem that reciprocating impact power cannot be provided by rotating power output under an existing wrench is solved.

Description

Technical Field

[0001] The utility model relates to an electric wrench accessory, in particular to a connecting piece which enables the electric wrench to be used as an electric hammer. Background Art

[0002] As a common power tool, electric wrenches are widely used in the assembly and disassembly of bolts and nuts. However, in actual use, users often face a problem: when temporary drilling or demolition operations are required, special electric hammer tools are usually required. This not only increases the burden of carrying the tool, but also leads to a decrease in the efficiency of tool use and an increase in cost. Most electric wrenches on the current market are mainly based on rotational power, and the torque output by the power shaft is not enough to directly meet the needs of demolition operations. The electric hammer can provide efficient reciprocating impact force through the built-in impact mechanism, and is the main tool type for demolition and drilling operations. However, the impact mechanism of the electric hammer is usually built-in and cannot be easily used with other tools, resulting in limitations in the tool's functions. Therefore, how to enable the electric wrench to temporarily have the impact function of the electric hammer through a simple and economical structural design without changing the existing structure of the electric wrench has become a technical problem that urgently needs to be solved. Utility Model Content

[0003] The utility model discloses a connecting piece that enables an electric wrench to be used as an electric hammer, comprising a connecting post, a return spring, and a compression sleeve. One end of the connecting post is connected to the wrench power shaft, and the other end is connected to the hammer head. The return spring is sleeved around the outer circumference of the connecting post, and the compression sleeve is sleeved around the connecting post. The return spring is disposed between the compression sleeve and the connecting post. The utility model connects the wrench power shaft and the hammer head via the connecting post, and uses the return spring to apply pressure to the compression sleeve toward the hammer head. The vibration of the compression sleeve causes it to reciprocate and impact. This technical solution solves the problem that the rotary power output of existing wrenches cannot provide a reciprocating impact force.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A connecting piece that enables an electric wrench to be used as an electric hammer includes: a connecting column, a reset spring, and a pressing sleeve. One end of the connecting column is connected to the wrench power shaft, and the other end of the connecting column is connected to the hammer head. The reset spring is sleeved on the outer circle of the connecting column, and the pressing sleeve is sleeved on the connecting column. The reset spring is arranged between the pressing sleeve and the connecting column.

[0006] It is further provided that one end of the connecting column connected to the wrench power shaft is provided with a wrench power shaft connecting hole, and the side wall of the wrench power shaft connecting hole is provided with a fixing clamping hole.

[0007] It is further provided that a hammer head connecting hole is provided at one end where the connecting column is connected to the hammer head, a bead hole is provided on the side wall of the hammer head connecting hole, a bead is provided between the bead hole and the inner wall of the pressing sleeve, a spring step is provided in the pressing sleeve, and the spring step is used to reset the spring into position.

[0008] It is further configured that an unlocking groove is provided in the pressing sleeve, and the pressing sleeve is moved to a position where the unlocking groove corresponds to the bead hole, and the bead is locked in the unlocking groove so that the hammer head cannot be stuck.

[0009] The utility model connects the wrench power shaft and the hammer head through a connecting column, and uses a reset spring to apply pressure to the pressing sleeve in the direction of the hammer head. The pressing sleeve is vibrated to cause it to perform reciprocating impact motion. The technical solution solves the problem that the existing wrench lower rotary power output cannot provide a reciprocating impact power. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a three-dimensional diagram of the utility model;

[0011] Figure 2 It is an exploded view of the utility model;

[0012] Figure 3 This is the cross section of the utility model Figure 1 ;

[0013] Figure 4 This is the cross section of the utility model Figure 2 ;

[0014] In the figure: connecting column 1, wrench power shaft connecting hole 2, fixing clamping hole 3, hammer head connecting hole 4, clamping bead hole 5, clamping bead 51, reset spring 6, pressing sleeve 7, clamping spring step 8, unlocking groove 9. DETAILED DESCRIPTION

[0015] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0016] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0017] Next, the present invention is described in detail with reference to schematic diagrams. For ease of illustration, cross-sectional views of device structures may be partially enlarged and not to scale when describing the embodiments of the present invention. Furthermore, the schematic diagrams are merely illustrative and should not limit the scope of protection of the present invention. Furthermore, in actual production, three-dimensional dimensions, including length, width, and depth, should be included.

[0018] In order to make the purpose, technical solutions and advantages of the present invention more clear, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

[0019] Specific implementation: Figures 1 to 4 As shown, the utility model discloses a connecting piece that enables an electric wrench to be used as an electric hammer, comprising a connecting column 1, a reset spring 6, and a pressing sleeve 7.

[0020] One end of the connecting column 1 is connected to the power shaft of the electric wrench through the wrench power shaft connecting hole 2. In order to ensure the reliability of the connection, the side wall of the wrench power shaft connecting hole 2 is provided with a fixing hole 3 for inserting a fixing component to firmly fix the connecting column 1 to the power shaft.

[0021] The other end of the connecting column 1 is connected to the hammer through the hammer connecting hole 4, and the side wall of the hammer connecting hole 4 is provided with a bead hole 5. The bead hole 5 has a built-in bead 51, and the pressing sleeve 7 cooperates with the inner wall of the bead hole 5 to achieve a stable connection of the hammer.

[0022] The return spring 6 is sleeved on the outer circle of the connecting column 1, with one end of the return spring 6 resting on the inner wall of the pressing sleeve 7 and the other end resting on the retaining spring step 8. The retaining spring step 8 is designed on the inner wall of the pressing sleeve 7 to limit the return spring 6 and ensure that the return spring 6 is always under stress, thereby applying pressure to the pressing sleeve 7 in the direction of the hammer head.

[0023] When the power shaft of the electric wrench rotates, the connecting column 1 is driven by the rotation and vibrates. At this time, the pressing sleeve 7 is driven by the elastic force of the return spring 6 to achieve reciprocating impact motion under the action of the vibration, transmitting the impact force to the hammer head, thus producing a function similar to that of an electric hammer.

[0024] In order to facilitate the removal and replacement of the hammer head, an unlocking groove 9 is provided on the inner wall of the pressing sleeve 7. When the pressing sleeve 7 is moved to the position where the unlocking groove 9 corresponds to the bead hole 5, the bead 51 enters the unlocking groove 9. At this time, the bead 51 cannot block the hammer head, and the user can easily remove the hammer head.

[0025] Through the above structural design, the utility model realizes the function of an electric hammer without changing the existing structure of the electric wrench, thereby solving the problem that the traditional electric wrench can only output rotational power but cannot provide a reciprocating impact power. At the same time, it also avoids the economic burden of users purchasing an additional electric hammer, and has significant practical value.

[0026] While the present invention has been described above with reference to specific embodiments, various modifications may be made and equivalent components may be substituted without departing from the scope of the present invention. In particular, as long as no structural conflicts exist, the various features of the embodiments disclosed herein may be combined with one another in any manner, and the omission of an exhaustive description of these combinations in this specification is solely for the sake of space and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but encompasses all technical solutions within the scope of the claims.

Claims

1. A connector that enables an electric wrench to be used as an electric hammer, characterized in that: include: A connecting column (1), a reset spring (6), and a pressing sleeve (7); one end of the connecting column (1) is connected to a wrench power shaft, the other end of the connecting column (1) is connected to a hammer head, the reset spring (6) is sleeved on the outer circle of the connecting column (1), the pressing sleeve (7) is sleeved on the connecting column (1), and the reset spring (6) is arranged between the pressing sleeve (7) and the connecting column (1).

2. The connector that enables an electric wrench to be used as an electric hammer according to claim 1, characterized in that: One end of the connecting column (1) connected to the wrench power shaft is provided with a wrench power shaft connecting hole (2), and a fixing clamping hole (3) is provided on the side wall of the wrench power shaft connecting hole (2).

3. The connector that enables an electric wrench to be used as an electric hammer according to claim 2, characterized in that: One end of the connecting column (1) connected to the hammer head is provided with a hammer head connecting hole (4), a side wall of the hammer head connecting hole (4) is provided with a bead hole (5), a bead (51) is provided between the bead hole (5) and the inner wall of the pressing sleeve (7), and a spring step (8) is provided in the pressing sleeve (7), and the spring step (8) is used to lock the reset spring (6).

4. The connector that enables an electric wrench to be used as an electric hammer according to claim 3, characterized in that: The pressing sleeve (7) is provided with an unlocking groove (9), and when the pressing sleeve (7) is moved to a position where the unlocking groove (9) corresponds to the bead hole (5), the bead (51) is inserted into the unlocking groove (9) and the hammer head cannot be stuck.

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