Novel drilling tool structure for electric wrench

Abstract

The utility model discloses a novel drilling tool structure for an electric wrench. The novel drilling tool structure comprises a drilling tool body, a drilling tool connecting piece is arranged at the end of the drilling tool body, a regular polygon inserting cavity is formed in the drilling tool connecting piece, an annular groove is formed in the outer wall of the drilling tool connecting piece, and a through pin hole communicated with the regular polygon inserting cavity is formed in the annular groove. A pin column is arranged in the through pin hole, and a rubber gasket is arranged in the annular groove; a transverse through hole is formed in a connector of the electric wrench, the connector of the electric wrench is inserted into the regular polygon insertion cavity, and the pin column is inserted into the through pin hole and the transverse through hole. The drilling tool connecting piece is reasonable in structural arrangement, the connecting stability of the drilling tool connecting piece and the electric wrench can be guaranteed, the dismounting and mounting convenience can be improved, the drilling tool connecting piece can be prevented from being damaged or broken during use, the use stability and reliability can be improved, the drilling tool connecting piece can be connected with a tapper according to needs, and the drilling tool connecting piece is convenient to use. And drilling operation at a certain depth can be realized while drilling operation is carried out.

Description

Technical Field

[0001] The utility model belongs to the technical field of electric wrench drills, and particularly relates to a drill structure for a new type of electric wrench. Background Art

[0002] An electric wrench refers to an electric tool for tightening and loosening bolts and nuts, and is a tool for tightening high-strength bolts. It usually includes a main body and a drill that can be detachably installed on the main body and used to connect with bolts. In the prior art, when the drill is connected to the electric wrench, a hexagonal convex column is integrally formed at the end of the drill, and a hexagonal insertion cavity is provided on the electric wrench. During installation, the hexagonal convex column is inserted into the hexagonal insertion cavity, and is locked by a locking screw on the side wall of the hexagonal insertion cavity. Although it can meet the usage requirements in general cases, the disassembly and assembly are not very convenient. Moreover, since the hexagonal convex column is provided on the drill and is smaller than the hexagonal insertion cavity during installation, it is also prone to shaking or loosening, affecting the use stability. And due to the limited cross-sectional area of the hexagonal convex column, it is also prone to breakage or damage, affecting the use reliability. At the same time, the prior art electric wrench cannot effectively connect to an opening structure, so during drilling processing, the opening operation cannot be realized. To solve the above existing technical deficiencies, the applicant has developed a drill structure for an electric wrench that can improve the disassembly and assembly convenience and is also beneficial to connecting an opening tool. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a drill structure for a new type of electric wrench with reasonable structure setting and beneficial to improving the disassembly and assembly convenience.

[0004] The technical solution to achieve the purpose of the utility model is a drill structure for a new type of electric wrench, which includes a drill body. A drill connector is provided at the end of the drill body. A regular polygon insertion cavity with an open rear end face and used to connect the electric wrench is provided inside the drill connector. An annular groove is provided on the outer wall of the drill connector, and a through pin hole communicating with the regular polygon insertion cavity is provided on the annular groove;

[0005] A pin is provided in the through pin hole, and a rubber washer is provided in the annular groove;

[0006] A transverse through hole is provided on the connector head of the electric wrench. The connector head of the electric wrench is inserted into the regular polygon insertion cavity. The pin is inserted into the through pin hole and the transverse through hole, and the rubber washer is clamped into the annular groove and abuts against both ends of the pin.

[0007] Further preferably: A drill body connection hole position is provided at the front end of the drill connector, and a locking screw communicating with the drill body connection hole position is provided on the drill connector;

[0008] The end of the drill body is inserted into the drill body connection hole position and locked and positioned by a locking screw.

[0009] Further preferably: The front end of the drill tool connector is integrally formed with an external thread stud for threadedly connecting an opening cutter.

[0010] Further preferably: The regular polygon insertion cavity is a regular quadrilateral insertion cavity or a regular hexagon insertion cavity that matches the shape of the connection head of the electric wrench.

[0011] Further preferably: The width of the annular groove matches the thickness of the rubber washer;

[0012] And the inner diameter of the rubber washer is smaller than the diameter of the annular groove.

[0013] Further preferably: Tightening force-receiving concave surfaces are provided on the symmetric side surfaces of the outer wall of the drill tool connector.

[0014] Further preferably: The drill tool connector is a metal structure body.

[0015] The present utility model has positive effects: The structure of the present utility model is reasonably arranged. It is provided with a drill tool adapter, and a through pin hole passing through the regular polygon insertion cavity is provided on the drill tool connector. In cooperation with a pin and a rubber washer, during use, the drill body is fixed on the drill tool connector, and the drill tool connector is sleeved on the connection head of the electric wrench. The pin is snapped into the through pin hole and the transverse through hole, and then the rubber washer is snapped into the annular groove and abuts against both ends of the pin. This can not only ensure the connection stability between the drill tool connector and the electric wrench, but also facilitate the disassembly and assembly. No additional tools are required for disassembly and assembly operations. And because the drill tool connector is sleeved on the connection head of the electric wrench, it is beneficial to increase the contact area and can also prevent the drill tool connector from being damaged or broken during use, which is beneficial to improving the use stability and reliability;

[0016] And the front end of the drill tool connector is integrally formed with an external thread stud for threadedly connecting an opening cutter, so that an opening cutter can also be connected according to needs, and an opening operation with a certain depth can be realized while drilling, with strong applicability and good practicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to make the content of the present utility model easier to be clearly understood, the following further details the present utility model according to specific embodiments in conjunction with the drawings, where:

[0018] Figure 1 is a structural schematic diagram of the present utility model;

[0019] Figure 2 is a structural diagram of another perspective of the present utility model;

[0020] Figure 3 This is a schematic structural diagram when the present utility model is connected to the connecting head of an electric wrench;

[0021] Figure 4 This is a schematic structural diagram when the present utility model is connected to a threaded connection hole opener.

[0022] Reference numerals: drill body 1, drill tool connector 2, regular polygon insertion cavity 3, annular groove 4, through pin hole 5, pin 6, rubber washer 7, locking screw 8, hole opener 9, external thread convex column 10, tightening force receiving concave surface 11, connecting head 12. Specific embodiments

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0024] Embodiment

[0025] See Figures 1 to 4 As shown, a drill tool structure for a new type of electric wrench includes a drill body 1. A drill tool connector 2 is provided at the end of the drill body. A regular polygon insertion cavity 3 with an open rear end face and used for connecting an electric wrench is provided inside the drill tool connector. In this embodiment, the drill body is a conventional structure of the prior art, such as a drill bit, a drill rod, or a wrench drill body, etc., which can be replaced and used according to different needs. At the same time, the drill tool connector is a metal structure body. The regular polygon insertion cavity is a regular quadrilateral insertion cavity or a regular hexagon insertion cavity that matches the shape of the connecting head of the electric wrench. That is, the shape of the regular polygon insertion cavity matches the shape of the connecting head on the electric wrench, which is convenient for installation and connection.

[0026] In the actual application process, an annular groove 4 is provided on the outer wall of the drill tool connector, and a through pin hole 5 communicating with the regular polygon insertion cavity is provided on the annular groove; a pin 6 is provided in the through pin hole, and a rubber washer 7 is provided in the annular groove; the width of the annular groove matches the thickness of the rubber washer; and the inner diameter of the rubber washer is smaller than the diameter of the annular groove.

[0027] During assembly, a transverse through-hole is provided on the connecting head 12 of the electric wrench. The connecting head of the electric wrench is inserted into the regular polygon insertion cavity, the pin is inserted into the through-pin hole and the transverse through-hole, and the rubber washer is snapped into the annular groove and abuts against both ends of the pin. Through the above-mentioned pin, the connection stability between the drill tool connecting piece and the connecting head of the electric wrench can be ensured. At the same time, the rubber washer is also beneficial to prevent the locking pin from loosening or falling off, ensuring the reliability of the connection. And because the rubber washer has a certain deformation performance, when installing the pin, the rubber washer can be moved away from the annular groove, and after installing the pin, the rubber washer can be moved into the annular groove again.

[0028] During actual application, a drill body connection hole position is provided at the front end of the drill tool connecting piece, and a locking screw 8 communicating with the drill body connection hole position is provided on the drill tool connecting piece; the end of the drill body is inserted into the drill body connection hole position and is locked and positioned by the locking screw. Through the above structure, different drill bodies can be quickly replaced, improving its scope of application. And it can be replaced before connecting with the electric wrench, so that it doesn't take too much time when connecting with the electric wrench, which is beneficial to improving the use efficiency of the electric wrench.

[0029] During actual application, an external thread convex column 10 for threadedly connecting a hole opener 9 is integrally formed at the front end of the drill tool connecting piece. It can be connected with a hole opener for cutting and limiting according to needs to ensure the corresponding drilling depth, and has strong practicability.

[0030] During actual application, tightening force-receiving concave surfaces 11 are provided on the symmetric side surfaces of the outer wall of the drill tool connecting piece. It is convenient to tighten the drill tool connecting piece with tools, and can meet the use requirements in different situations.

[0031] The utility model has positive effects: The structure of the utility model is reasonably arranged. It is provided with a drill tool adapter, and a through pin hole passing through a regular polygon insertion cavity is arranged on the drill tool connecting piece. Cooperating with a pin and a rubber washer, during use, the drill body is fixed on the drill tool connecting piece, and the drill tool connecting piece is sleeved on the connecting head of an electric wrench. The pin is clamped into the through pin hole and the transverse through hole, and then the rubber washer is clamped into the annular groove and abuts against both ends of the pin. This can not only ensure the connection stability between the drill tool connecting piece and the electric wrench, but also facilitate the disassembly and assembly. There is no need for additional tools for disassembly and assembly operations. Moreover, since the drill tool connecting piece is sleeved on the connecting head of the electric wrench, it is beneficial to increase the contact area and can also prevent the drill tool connecting piece from being damaged or broken during use, which is beneficial to improving the use stability and reliability. In addition, an externally threaded convex column for threadedly connecting a hole opener is integrally formed at the front end of the drill tool connecting piece, so that a hole opener can also be connected according to needs, and a certain depth of hole opening operation can be realized while drilling. It has strong applicability and good practicability.

[0032] The standard parts used in this embodiment can be directly purchased from the market. For the non-standard structural components described in the specification, they can also be directly processed without doubt according to the existing common technical knowledge. At the same time, the connection methods of each component adopt the mature conventional means in the existing technology, and the machines, parts and equipment all adopt the conventional models in the existing technology. Therefore, no specific description will be made here.

[0033] Obviously, the above embodiments of the present utility model are only examples for clearly illustrating the present utility model, rather than limiting the implementation manners of the present utility model. For those of ordinary skill in the art, other different forms of changes or variations can be made on the basis of the above description. It is not necessary and impossible to enumerate all the implementation manners here. And these obvious changes or variations derived from the essential spirit of the present utility model still fall within the protection scope of the present utility model.

Claims

1. A new type of drilling tool structure for an electric wrench, comprising a drill body, characterized in that: The end of the drill body is provided with a drill tool connecting piece, the drill tool connecting piece is provided with a regular polygonal insertion cavity with a rear end face opening and used to connect an electric wrench, an annular groove is provided on the outer wall of the drill tool connecting piece, and a through pin hole connected to the regular polygonal insertion cavity is provided on the annular groove; A pin is arranged in the through pin hole, and a rubber gasket is arranged in the annular groove; A transverse through hole is arranged on the connecting head of the electric wrench, the connecting head of the electric wrench is inserted into the regular polygonal insertion cavity, the pin is inserted into the through pin hole and the transverse through hole, and the rubber gasket is stuck in the annular groove and abuts against the two ends of the pin.

2. The new drilling tool structure for an electric wrench according to claim 1 is characterized in that: A drill body connection hole is arranged at the front end of the drill tool connecting piece, and a locking screw connected to the drill body connection hole is arranged on the drill tool connecting piece; The end of the drill body is inserted into the drill body connecting hole and is locked in place by a locking screw.

3. The new drilling tool structure for electric wrench according to claim 2 is characterized in that: The front end of the drilling tool connecting piece is also formed with an external threaded boss for threaded connection with a hole opener.

4. The new drilling tool structure for electric wrench according to claim 1 is characterized in that: The regular polygonal insertion cavity is a regular quadrilateral insertion cavity or a regular hexagonal insertion cavity that matches the shape of the connecting head of the electric wrench.

5. The new drilling tool structure for electric wrench according to claim 1 is characterized in that: The width of the annular groove matches the thickness of the rubber gasket; And the inner diameter of the rubber gasket is smaller than the diameter of the annular groove.

6. The new drilling tool structure for electric wrench according to claim 1 is characterized in that: The symmetrical side surfaces of the outer wall of the drilling tool connecting piece are provided with tightening force-bearing concave surfaces.

7. The new drilling tool structure for electric wrench according to claim 1 is characterized in that: The drilling tool connecting piece is a metal structure.

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