Power tools

Abstract

The present application relates to the technical field of operating tools, and discloses a power working tool. The power working tool includes a driving mechanism and at least two operating heads. The driving mechanism includes a power source, a structural frame and a driving member, the driving member is movably connected to the structural frame, and realizes reciprocating movement under the drive of the power source. At least two operating heads are configured to be replaceably connected to the structural frame, and can operate under the drive of the driving member after being connected to the structural frame. The power tool provides a unified driving mechanism to cooperate with multiple or multiple operating heads, which can reduce costs and reduce the carrying burden of construction personnel while meeting different operating requirements.

Description

Technical Field

[0001] The present application relates to the technical field of operating tools, and in particular to a power working tool. Background Art

[0002] During the construction of railways and power grids, various operations are involved, and correspondingly, multiple operating tools need to be configured to meet different operating requirements, such as breaking nuts, crimping wires, cutting wires, punching holes, etc. It is costly to equip at least one operating tool for one type of operation. In addition, the weight of the operating tools used in railways and power grids is generally 2-10kg, so for construction workers, the burden of carrying various operating tools is also heavy. Utility Model Content

[0003] The purpose of this application is to make up for the shortcomings of the prior art and provide a power working tool that provides a unified driving mechanism in conjunction with multiple or various operating heads, which can reduce costs and alleviate the carrying burden of construction workers while meeting different operating requirements.

[0004] In order to solve the above technical problems, this application adopts the following technical solutions:

[0005] The present application provides a power working tool, which includes a driving mechanism and at least two operating heads. The driving mechanism includes a power source, a structural frame and a driving member, the driving member is movably connected to the structural frame and reciprocates under the drive of the power source. At least two operating heads are configured to be replaceably connected to the structural frame, and can operate under the drive of the driving member after being connected to the structural frame.

[0006] Optionally, the operating head includes a fixed part and a movable part, the fixed part is used to be detachably connected to the structural frame; the movable part is movably connected to the fixed part and abuts against or is spaced apart from the driving part after the fixed part is connected to the structural frame.

[0007] Optionally, the operating head further comprises an elastic reset member, which acts on the fixed member and the movable member respectively, and is used for driving the movable member to reset to an original position after the operating head completes the operation.

[0008] Optionally, the operating head includes a fixed part and a movable part, the fixed part is used to be detachably connected to the structural frame; the movable part is detachably connected to the driving part.

[0009] Optionally, the driving member is provided with a mounting hole, the inner wall of the mounting hole is provided with an annular inner groove, and an elastic ring is arranged in the inner groove. The movable member is provided with a connecting column, the outer peripheral surface of the connecting column is provided with an annular fixing groove, and after the connecting column is extended into a predetermined position in the mounting hole on the driving member, the fixing groove clamps the elastic ring.

[0010] Optionally, a quick release part is provided on the structural frame, a quick release hole is provided on the quick release part, a connecting hole is provided on each of the operating heads, and the quick release hole cooperates with the connecting hole to insert a plug pin to removably and rotatably connect the operating head to the structural frame.

[0011] Optionally, the quick release part is a U-shaped structure, a middle portion of the quick release part of the U-shaped structure is fixedly connected to the structural frame, and both ends of the quick release part of the U-shaped structure are respectively provided with the quick release holes.

[0012] Optionally, each end of the U-shaped structured quick-release part is provided with two coaxial first quick-release holes and a second quick-release hole arranged at intervals, and the quick-release part is provided with a mounting groove between the first quick-release hole and the second quick-release hole, and the mounting groove is used to accommodate a portion of the operating head provided with a connecting hole, so that the second quick-release hole is placed between the two first quick-release holes for the plug-in pin to pass through the first quick-release hole, the connecting hole and the second quick-release hole for connection.

[0013] Optionally, an annular receiving groove is provided on the inner wall of at least one of the first quick-release hole and the second quick-release hole, and a stop groove is provided on the plug pin. The quick-release part further comprises a special-shaped elastic ring, which is placed in the receiving groove; the special-shaped elastic ring has a maximum radial dimension and a minimum radial dimension in two different directions in a natural state, respectively, the maximum radial dimension is larger than the inner diameter of the receiving groove, and the minimum radial dimension is smaller than the outer diameter of the stop groove.

[0014] Optionally, the special-shaped elastic ring is waist-shaped.

[0015] Optionally, a notch is provided at one of the two ends of the special-shaped elastic ring in a direction corresponding to the maximum radial dimension.

[0016] Optionally, the driving member is a piston rod in a hydraulic cylinder, and the power source includes a hydraulic pump, which is connected to the hydraulic cylinder to drive the piston rod to reciprocate.

[0017] Optionally, an operating head for breaking nuts is included, the operating head includes a nut breaking cutter head, and the nut breaking cutter head is slidably connected to a fixing member of the operating head.

[0018] Optionally, a V-shaped protrusion is formed on the fixing member at a position corresponding to the blade of the nut breaking cutter head, and the angle of the V-shaped protrusion is an obtuse angle.

[0019] Optionally, the angle range of the folding angle of the V-shaped protrusion is 150°-175°.

[0020] Optionally, the fixing piece is formed with a hexagonal fitting hole for fixing the nut, and the diagonal of the fitting hole is slightly larger than the diagonal of the nut of the maximum size to which it is applicable.

[0021] Optionally, the above-mentioned power working tool includes an operating head for cutting the cable, and a movable part of the operating head is hinged to the fixed part.

[0022] Optionally, the power working tool comprises an operating head for punching, wherein the operating head comprises a punching member and a C-shaped fixing member, and the punching member is slidably connected to the fixing member.

[0023] Optionally, the above-mentioned power working tool includes an operating head for crimping terminals, and the operating head also includes at least two groups of molds, each group of molds includes a movable module and a fixed module, the movable module is used to be plugged into the driving member, and the fixed module is connected to the fixed member. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to make the advantages of the present application more easily understood, the present application briefly described above will be described in more detail by referring to the specific embodiments shown in the accompanying drawings. It can be understood that these drawings only depict typical embodiments of the present application and therefore should not be considered as limiting the scope of protection thereof. The present application is described and explained with additional characteristics and details through the accompanying drawings.

[0025] Figure 1 A schematic diagram of the structure of a power working tool provided for this application;

[0026] Figure 2 A schematic diagram of the structure of an operating head for nut breaking installed in a power working tool provided in the present application;

[0027] Figure 3 A schematic diagram of the structure of an operating head for cutting cables installed on a power working tool provided in the present application;

[0028] Figure 4 A schematic diagram of the structure of an operating head for cutting cables installed on a power working tool provided in the present application;

[0029] Figure 5 A schematic diagram of a reset structure of an operating head provided in this application;

[0030] Figure 6A schematic diagram of a structure provided by the present application showing the coordinated installation of an operating head, a structural frame and a driving member;

[0031] Figure 7 A schematic diagram of the structure of a special-shaped elastic ring provided in this application;

[0032] Figure 8 A schematic structural diagram of another special-shaped elastic ring provided in this application.

[0033] The reference numerals are as follows:

[0034] 100, driving mechanism; 110, structural frame; 120, driving member; 200, operating head; 210, fixing member; 220, movable member; 230, elastic reset member; 121, mounting hole; 221, connecting column; 222, fixing groove; 130, quick release member; 240, connecting hole; 131, first quick release hole; 132, second quick release hole; 133, mounting groove; 250, plug-in pin; 251, stop groove; 260, special-shaped elastic ring; 261, notch; 270 nut breaking blade; 211, V-shaped protrusion. DETAILED DESCRIPTION

[0035] In the following description, a large number of specific details are provided to provide a more thorough understanding of the present application. However, it is obvious to those skilled in the art that the present application embodiments can be implemented without one or more of these details. In other examples, in order to avoid confusion with the present application embodiments, some technical features well known in the art are not described.

[0036] In order to thoroughly understand the implementation of the present application, a detailed structure will be presented in the following description. Obviously, the implementation of the implementation of the present application is not limited to the specific details familiar to those skilled in the art. The preferred implementation of the present application is described in detail below, but in addition to these detailed descriptions, the present application may also have other implementations.

[0037] In the description of the present application, the term "A and / or B" represents all possible combinations of A and B, such as just A, just B, or A and B. The term "at least one A or B" or "at least one of A and B" has a similar meaning to "A and / or B", which may include just A, just B, or A and B. The singular terms "one" and "this" may also include plural forms. The orientations or positional relationships indicated by the terms "inside", "outside", "longitudinal", "lateral", "upper", "lower", "top", "bottom", etc. are based on the orientations or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the present application and do not require that the present application must be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present application. The terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance. In addition, in the description of this application, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0038] The embodiments of the present application are further described in detail below with reference to the accompanying drawings:

[0039] The present application provides a power working tool, which includes a driving mechanism and at least two operating heads, wherein the driving mechanism includes a power source, a structural frame, and a driving member, wherein the driving member is movably connected to the structural member and reciprocates under the drive of the power source. The at least two operating heads are configured to be replaceably connected to the structural frame, and after being connected to the structural frame, can operate under the drive of the driving member.

[0040] In the above implementation process, the power working tool mainly includes two parts, namely a driving mechanism and an operating part. The driving mechanism is used to drive the operating head to move so as to perform the operation. The driving mechanism of the power working tool provided by this application can be suitable for different operating heads. Construction personnel can perform different operations simply by replacing the operating head on the driving mechanism. That is, construction personnel can perform different operations by configuring a set of power working tools provided by this application, namely a driving mechanism and multiple operating heads, without the need to configure a variety of working tools, which not only saves costs, but also reduces the burden of construction personnel carrying tools during operation.

[0041] Optionally, the above-mentioned operating heads can be used to break nuts, cut wires, crimp terminals, punch holes, etc. Specifically, the number and types of operating heads can be configured according to actual construction requirements.

[0042] In a possible implementation, the operating head includes a fixed part and a movable part, wherein the fixed part is used to be detachably connected to the structural frame, and the movable part is movably connected to the fixed part and abuts against or is spaced apart from the driving part after the fixed part is connected to the structural frame.

[0043] In the above implementation process, there is no direct connection between the movable part and the driving mechanism. The movable part and the driving part are abutted or spaced, and can be operated under the push of the driving part. Therefore, when the operating head and the driving part are disassembled and assembled, only the fixing part and the structural frame need to be disassembled and assembled, which can reduce the disassembly and assembly steps and improve efficiency.

[0044] In a possible implementation manner, the operating head further includes an elastic reset member, which acts on the fixed member and the movable member respectively, and is used to drive the movable member to reset to an original position after the operating head completes the operation.

[0045] In the above implementation process, when the movable part is abutted or spaced against the driving part, the movable part moves from the original position to the working position under the push of the driving part. After the crimping is completed, the driving part automatically resets but cannot drive the movable part to reset. At this time, the movable part resets to the original position under the elastic force of the elastic reset part.

[0046] Optionally, an annular hole is formed between the fixed member and the movable member, the elastic reset member is a spring, the spring is installed in the annular hole, and two ends of the spring abut against the fixed member and the movable member respectively. When the movable member is in the working position, the spring is in a compressed state.

[0047] In a possible implementation manner, the operating head includes a fixed part and a movable part, the fixed part is used to be detachably connected to the structural frame; the movable part is detachably connected to the driving part.

[0048] In the above implementation process, the movable part and the driving part are detachably connected, and when the power working tool is working, the movable part is driven by the driving part to reciprocate. When disassembling the operating head and the driving mechanism, the fixing part and the structural frame, the movable part and the driving part need to be disassembled and assembled respectively.

[0049] In a possible implementation, a mounting hole is provided on the driving member, an annular inner groove is provided on the inner wall of the mounting hole, and an elastic ring is provided in the inner groove; a connecting column is provided on the movable member, and an annular fixing groove is provided on the outer peripheral surface of the connecting column. After the connecting column is extended into a predetermined position in the mounting hole on the driving member, the fixing groove clamps the elastic ring, thereby clamping the movable member.

[0050] In a possible implementation, a quick-release part is provided on the structural frame, a quick-release hole is provided on the quick-release part, a connecting hole is provided on each operating head, and a plug pin is inserted into the quick-release hole in cooperation with the connecting hole to detachably and rotatably connect the operating head to the structural frame.

[0051] In the above implementation process, a quick-release hole and a connection hole are respectively provided on the quick-release part and the operating head, and a plug-in pin is inserted into the quick-release hole and the connection hole for connection, so that quick disassembly and assembly can be achieved.

[0052] In a possible implementation, the quick release piece is a U-shaped structure, the middle portion of the U-shaped quick release piece is fixedly connected to the structural frame, and quick release holes are respectively provided at both ends of the U-shaped quick release piece.

[0053] In the above implementation process, the quick release part is set to a U-shaped structure, which effectively avoids a position that allows the movable part to move, and the two ends are connected to the plug pins through the quick release holes, which can also provide stability of the connection.

[0054] In a possible embodiment, each end of the U-shaped quick-release part is provided with two coaxial first quick-release holes and a second quick-release hole that are spaced apart, and the quick-release part is provided with a mounting groove between the first quick-release hole and the second quick-release hole, and the mounting groove is used to accommodate a portion of the operating head provided with a connecting hole, so that the second quick-release hole is placed between the two first quick-release holes for the plug-in pin to pass through the first quick-release hole, the connecting hole and the second quick-release hole for connection.

[0055] In a possible implementation, an annular receiving groove is provided on the inner wall of at least one of the first quick-release hole and the second quick-release hole, and a stop groove is provided on the plug-in pin. The quick-release part further includes a special-shaped elastic ring, which is placed in the receiving groove; the special-shaped elastic ring has a maximum radial dimension and a minimum radial dimension of the special-shaped elastic ring in two different directions in a natural state, respectively, the maximum radial dimension is larger than the inner diameter of the receiving groove, and the minimum radial dimension is smaller than the outer diameter of the stop groove.

[0056] Optionally, one of the first quick release hole and the second quick release hole is provided with a receiving groove, or both of the second quick release hole and the second quick release hole are provided with receiving grooves. If only one stop groove is provided on the plug pin, the stop groove is provided at a position on the plug pin corresponding to the receiving groove after installation.

[0057] In the above implementation process, the maximum radial dimension of the special-shaped elastic ring is larger than the inner diameter of the receiving groove (i.e., the diameter of the first quick-release hole or the second quick-release hole), so that the special-shaped elastic ring can be clamped in the receiving groove. The minimum radial dimension of the special-shaped elastic ring is smaller than the outer diameter of the stop groove (i.e., the diameter of the plug-in pin), so that when the plug-in pin passes through the elastic ring, the elastic ring can be clamped in the stop groove.

[0058] On the one hand, the special-shaped elastic ring can clamp the plug-in pin to prevent the plug-in pin from falling out of the connecting hole and the quick-release hole when there is no external force after the installation is completed; on the other hand, during disassembly, after the plug-in pin withdraws from the second quick-release hole and the connecting hole, the special-shaped elastic ring in the first quick-release hole can clamp the plug-in pin, so that the plug-in pin remains in the first quick-release hole and continues to be replaced. After the replacement is completed, the plug-in pin is further pushed forward and inserted into the connecting hole and the first quick-release hole, that is, during disassembly, the plug-in pin is prevented from falling out of the first quick-release hole, which can reduce the loss of the plug-in pin and improve the efficiency of disassembly and replacement.

[0059] In a possible implementation manner, the special-shaped elastic ring is in a waist shape.

[0060] In a possible implementation manner, a notch is formed at one of the two ends of the special-shaped elastic ring in a direction corresponding to the maximum radial dimension.

[0061] In the above implementation process, a notch is provided in a section corresponding to the maximum radial dimension of the special-shaped elastic ring, so as to facilitate the assembly of the special-shaped elastic ring into the receiving groove.

[0062] In a possible implementation, the driving member is a piston rod in a hydraulic cylinder, and the power source includes a hydraulic pump, which is connected to the hydraulic cylinder to drive the piston rod to reciprocate.

[0063] Optionally, the power working tool comprises an operating head for breaking nuts, the operating head comprises a nut breaking cutter head, and the nut breaking cutter head is slidably connected to a fixing member of the operating head.

[0064] Optionally, a V-shaped protrusion is formed on the fixing member at a position corresponding to the blade of the nut breaking blade, and the angle of the V-shaped protrusion is an obtuse angle. The V-shaped protrusion is arranged on the fixing member, and the V-shaped protrusion forms a line contact with the nut to be broken, so that the nut to be broken forms a fracture surface here.

[0065] Optionally, the angle range of the folding angle of the V-shaped protrusion is 150°-175°.

[0066] Optionally, the fixing piece is formed with a hexagonal fitting hole for fixing the nut, and the diagonal of the fitting hole is slightly larger than the diagonal of the nut of the largest size it is applicable to. For example, if the operating head is applicable to nuts of M14-M24, the diagonal of the mounting hole is slightly larger than the diagonal of the M24 nut to leave space for the nut to deform, so as to facilitate the removal of the deformed nut.

[0067] Optionally, the above-mentioned power working tool includes an operating head for cutting the cable, and a movable part of the operating head is hinged to the fixed part.

[0068] Optionally, the power working tool comprises an operating head for punching, wherein the operating head comprises a punching member and a C-shaped fixing member, and the punching member is slidably connected to the fixing member.

[0069] Optionally, the above-mentioned power working tool includes an operating head for crimping terminals, and the operating head also includes at least two groups of molds, each group of molds includes a movable module and a fixed module, the movable module is used to be plugged into the driving member, and the fixed module is connected to the fixed member.

[0070] The above shows and describes the basic principles and main features of the present application and the advantages of the present application. For those skilled in the art, it is obvious that the present application is not limited to the details of the above exemplary embodiments, and the present application can be implemented in other specific forms without departing from the spirit or basic features of the present application. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present application is defined by the attached claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present application. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0071] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A power working tool, characterized in that: include: A driving mechanism, comprising a power source, a structural frame and a driving member, wherein the driving member is movably connected to the structural frame and realizes reciprocating movement under the drive of the power source; At least two operating heads are configured to be replaceably connected to the structural frame, and can operate under the drive of the driving member after being connected to the structural frame.

2. The power working tool according to claim 1, characterized in that: The operating head comprises a fixed part and a movable part, wherein the fixed part is used for being detachably connected to the structural frame; the movable part is movably connected to the fixed part and abuts against or is spaced apart from the driving part after the fixed part is connected to the structural frame.

3. The power working tool according to claim 2, characterized in that: The operating head further comprises an elastic reset member, which acts on the fixed member and the movable member respectively, and is used for driving the movable member to reset to an original position after the operating head completes the operation.

4. The power working tool according to claim 1, characterized in that: The operating head comprises a fixed part and a movable part, wherein the fixed part is used to be detachably connected to the structural frame; and the movable part is detachably connected to the driving part.

5. The power working tool according to claim 4, characterized in that: The driving member is provided with a mounting hole, the inner wall of the mounting hole is provided with an annular inner groove, and an elastic ring is provided in the inner groove; The movable part is provided with a connecting column, and an annular fixing groove is provided on the outer peripheral surface of the connecting column. After the connecting column is extended into a predetermined position in the mounting hole on the driving part, the fixing groove clamps the elastic ring.

6. The power working tool according to any one of claims 1 to 5, characterized in that: The structural frame is provided with a quick-release part, the quick-release part is provided with a quick-release hole, each operating head is provided with a connecting hole, the quick-release hole cooperates with the connecting hole to insert a plug pin to detachably and rotatably connect the operating head to the structural frame.

7. The power working tool according to claim 6, characterized in that: The quick release part is a U-shaped structure, the middle part of the quick release part of the U-shaped structure is fixedly connected to the structural frame, and the quick release holes are respectively opened at both ends of the quick release part of the U-shaped structure.

8. The power working tool according to claim 7, characterized in that: Each end of the U-shaped quick-release part is provided with two coaxial first quick-release holes and a second quick-release hole arranged at intervals, and the quick-release part is formed with a mounting groove between the first quick-release hole and the second quick-release hole, and the mounting groove is used to accommodate a portion of the operating head provided with a connecting hole, so that the second quick-release hole is placed between the two first quick-release holes for the plug-in pin to pass through the first quick-release hole, the connecting hole and the second quick-release hole for connection.

9. The power working tool according to claim 8, characterized in that: An annular receiving groove is provided on the inner wall of at least one of the first quick-release hole and the second quick-release hole, and a stop groove is provided on the plug-in pin; The quick-release part also includes a special-shaped elastic ring, which is placed in the accommodating groove; the special-shaped elastic ring has a maximum radial dimension and a minimum radial dimension of the special-shaped elastic ring in two different directions in a natural state, respectively, the maximum radial dimension is larger than the inner diameter of the accommodating groove, and the minimum radial dimension is smaller than the outer diameter of the stop groove.

10. The power working tool according to claim 9, characterized in that: The shape of the special-shaped elastic ring is waist-shaped.

11. The power working tool according to claim 10, characterized in that: A notch is provided at one of the two ends of the special-shaped elastic ring in a direction corresponding to the maximum radial dimension.

12. The power working tool according to claim 1, characterized in that: The driving member is a piston rod in a hydraulic cylinder, and the power source includes a hydraulic pump, which is connected to the hydraulic cylinder to drive the piston rod to move back and forth.

13. The power working tool according to claim 2, characterized in that: The utility model comprises an operating head for breaking nuts, wherein the operating head comprises a nut breaking cutter head, and the nut breaking cutter head is slidably connected to a fixing member of the operating head.

14. The power working tool according to claim 13, characterized in that: A V-shaped protrusion is formed on the fixing member at a position corresponding to the blade of the nut breaking cutter head, and the folding angle of the V-shaped protrusion is an obtuse angle.

15. The power working tool according to claim 14, characterized in that: The angle range of the folding angle of the V-shaped protrusion is 150°-175°.

16. The power working tool according to claim 13, characterized in that: The fixing piece is formed with a hexagonal fitting hole for fixing the nut, and the diagonal of the fitting hole is slightly larger than the diagonal of the nut of the maximum size to which it is applicable.

17. The power working tool according to claim 2, characterized in that: It comprises an operating head for cutting cables, wherein a movable part of the operating head is hinged to the fixed part.

18. The power working tool according to claim 2, characterized in that: It comprises an operating head for punching, the operating head comprises a punching piece and a C-shaped fixing piece, and the punching piece is slidably connected to the fixing piece.

19. The power working tool according to claim 4, characterized in that: It comprises an operating head for crimping terminals, the operating head also comprises at least two groups of dies, each group of dies comprises a movable module and a fixed module, the movable module is used to be plugged with the driving member, and the fixed module is connected with the fixed member.

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