Mounting structure of electric tool and electric tool

Abstract

The utility model provides a mounting structure of an electric tool, which is used for connecting an end cover to an output main body of the electric tool, and comprises a mounting seat connected with the inner side of the end cover; the connecting piece I is arranged on the output main body and can sequentially penetrate through the mounting seat and the end cover; the adjusting connecting sleeve is rotatably arranged on the end cover; the second connecting piece is arranged in the adjusting connecting sleeve, the second connecting piece is matched with the first connecting piece in a screwed mode, and the second connecting piece rotates along with the adjusting connecting sleeve and can move in the adjusting connecting sleeve in the axial direction of the first connecting piece. According to the utility model, the nut anti-drop connection between the end cover and the output main body can be realized, the loss of the nut in the dismounting process is avoided, the stability of connection and assembly is improved, and meanwhile, a rapid and stable belt tension adjusting function is provided.

Description

Technical Field

[0001] The utility model relates to the technical field of power tools, in particular to an installation structure of a power tool and a corresponding power tool. Background Art

[0002] Power tools such as cutting saws are widely used in industries such as road construction, fire rescue, railway construction and emergency repair, and are important tools for cement cutting and steel cutting. In the current cutting saw, the connection and fixation between the end cover part and the body part are realized through a bolt and nut structure. When disassembling, the nut is easy to fall off and be lost, causing waste and affecting subsequent installation and use. Summary of the Utility Model

[0003] The utility model is to avoid the deficiencies of the prior art, and provides an anti - detachment installation structure of a power tool and a power tool.

[0004] The utility model solves the technical problems by adopting the following technical solutions: An installation structure of a power tool for connecting an end cover to an output main body of the power tool, the installation structure comprising:

[0005] An installation seat, which is connected to the inner side position of the end cover;

[0006] A first connecting member provided on the output main body, the first connecting member can sequentially pass through the installation seat and the end cover;

[0007] An adjustable connection sleeve rotatably provided on the end cover;

[0008] A second connecting member provided in the adjustable connection sleeve, the second connecting member is in screw connection with the first connecting member, and the second connecting member rotates with the adjustable connection sleeve and can move along the axial direction of the first connecting member in the adjustable connection sleeve.

[0009] In several embodiments, part of the adjustable connection sleeve is restricted between the installation seat and the end cover, and the other part extends to the outside position of the end cover.

[0010] In several embodiments, the second connecting member is restricted between the adjustable connection sleeve and the installation seat and cannot pass through the installation seat and / or the adjustable connection sleeve.

[0011] In several embodiments, a tension adjustment assembly is further included, and the tension adjustment assembly includes:

[0012] An adjustment knob provided on the end cover;

[0013] An adjustment rod provided between the end cover and the installation seat;

[0014] Wherein, a transmission component is used for driving connection between the adjusting knob and the adjusting rod, and rotation of the adjusting knob can drive the adjusting rod to rotate and move axially along itself.

[0015] In several embodiments, it further includes a connecting frame fixedly arranged on the body main part of the power tool. A connecting protrusion is arranged on the connecting frame, and one end of the adjusting rod abuts against the connecting protrusion.

[0016] In several embodiments, the connecting frame is arranged between the mounting seat and the output main body. An adjusting hole is arranged on the connecting frame. The first connecting piece passes through the adjusting hole, and the adjusting hole extends along the axial direction of the adjusting rod. The first connecting piece can move in the adjusting hole.

[0017] In several embodiments, the transmission component includes a first transmission piece arranged on the adjusting knob and a second transmission piece arranged on the adjusting rod. The first transmission piece is used for driving the second transmission piece to rotate. The second transmission piece is non-rotatably arranged on the adjusting rod, and the adjusting rod can rotate along with the second transmission piece and move axially along the second transmission piece.

[0018] In several embodiments, the adjusting rod includes a main rod body. A threaded area is arranged on the upper part of the main rod body. A limiting piece and a guiding piece are sleeved on the threaded area. A spring is connected between the limiting piece and the guiding piece. The guiding piece is in threaded cooperation with the threaded area. The guiding piece is restricted in the mounting seat and can only make linear motion along the axial direction of the main rod body.

[0019] And, a power tool including the mounting structure of the above-mentioned power tool.

[0020] The utility model has the following beneficial effects:

[0021] The utility model can realize anti-loosening connection of the nut between the end cover and the output main body, and avoid loss of the nut during the disassembly process.

[0022] The utility model can facilitate quick tension adjustment of the belt through the tension adjustment component, and improve the convenience and stability of adjustment.

[0023] Through the overall connection and cooperation structure of the mounting structure and the tension adjustment component, the utility model can realize integral disassembly and assembly, facilitate disassembly and assembly with the output main body of the power tool, and improve the assembly convenience and stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The drawings described herein are only for the purpose of illustrating the selected embodiments and do not represent all possible embodiments, and should not be considered as a limitation to the scope of the utility model.

[0025] Figure 1Schematically shows the exploded structure of the mounting structure of the power tool in Embodiment 1;

[0026] Figure 2 Schematically shows Figure 1 the enlarged structure of the adjusting connecting sleeve and the second connecting member in;

[0027] Figure 3 Schematically shows the sectional structure of the mounting structure of the power tool in Embodiment 1;

[0028] Figure 4 Schematically shows Figure 3 the enlarged structure of part A in;

[0029] Figure 5 Schematically shows Figure 1 the enlarged structure of the mounting base and the adjusting rod in;

[0030] Figure 6 Schematically shows Figure 1 the enlarged structure of the connecting frame in. Detailed implementation manners

[0031] Next, embodiments of the present invention will be described in detail. To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments.

[0032] Therefore, the detailed description of the embodiments of the present invention provided below is not intended to limit the scope of the claimed present invention, but merely represents selected embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present invention.

[0033] The terms used herein are intended to explain the embodiments and are not intended to limit and / or define the present invention.

[0034] Embodiment 1

[0035] As Figures 1 - 4 shown, the power tool in this embodiment is a cutting saw structure, which mainly consists of an output main body 100, a body main body for driving the output main body 100, and a corresponding mounting structure. The output main body 100 is the cutting saw blade part, and the body main body is the power part.

[0036] Specifically, the installation structure is first composed of an anti - detachment component. The anti - detachment component is mainly composed of a mounting seat 20 connected to the inner side of the end cap 10, a first connecting piece 30 arranged on the output main body 100, an adjustable connecting sleeve 40 rotatably arranged on the end cap 10, and a second connecting piece 50 arranged inside the adjustable connecting sleeve 40, generally as shown in Figure 1 the part surrounded by the square frame in

[0037] Here, the first connecting piece 30 can sequentially pass through the mounting seat 20 and the end cap 10. It is a bolt structure. Correspondingly, the second connecting piece 50 is in threaded connection with the first connecting piece 30. The second connecting piece 50 rotates with the adjustable connecting sleeve 40 and can move along the axial direction of the first connecting piece 30 inside the adjustable connecting sleeve 40. The second connecting piece 50 adopts a hexagonal nut structure here to achieve threaded fit, and the inner wall of the adjustable connecting sleeve 40 in contact with the second connecting piece 50 is also in a hexagonal prism shape, thereby restricting the self - rotation of the second connecting piece 50 inside it.

[0038] Among them, part of the adjustable connecting sleeve 40 is restricted between the mounting seat 20 and the end cap 10, and the other part extends to the outside of the end cap 10. One side of the adjustable connecting sleeve 40 protrudes outward to form a retaining edge 41, and the retaining edge 41 is used to prevent it from detaching from the end cap 10.

[0039] Moreover, the second connecting piece 50 is restricted between the adjustable connecting sleeve 40 and the mounting seat 20 and cannot pass through the mounting seat 20 and / or the adjustable connecting sleeve 40, that is, the second connecting piece 50 cannot fall into the hole in the mounting seat 20 for the first connecting piece 30 to pass through, and the exposed end of the adjustable connecting sleeve 40 is a closed structure, thereby avoiding the detachment of the second connecting piece 50.

[0040] Thus, by using a tool such as a wrench to rotate the adjustable connecting sleeve 40, the screw motion of the second connecting piece 50 on the first connecting piece 30 can be driven to achieve locking.

[0041] Combined with Figures 5 - 6 As shown in the figure, the installation structure further includes a tension adjustment component. The tension adjustment component is mainly composed of an adjustment knob 60 arranged on the end cap 10, an adjustment rod 70 arranged between the end cap 10 and the mounting seat 20, a transmission component arranged on the adjustment knob 60 and the adjustment rod 70, and a connecting frame 80 fixedly arranged on the body main part of the power tool.

[0042] Among them, the adjustment knob 60 and the adjustment rod 70 are in transmission connection through the transmission component. By rotating the adjustment knob 60, the adjustment rod 70 can be driven to make a rotational motion and a motion along its axial direction.

[0043] Meanwhile, the connecting frame 80 is arranged between the mounting base 20 and the output main body 100. An adjusting hole 82 is formed in the connecting frame 80. The first connecting piece 30 passes through the adjusting hole 82, and the adjusting hole 82 extends along the axial direction of the adjusting rod 70. The first connecting piece 30 can move within the adjusting hole 82.

[0044] In addition, the transmission assembly includes a first transmission piece 91 arranged on the adjusting knob 60 and a second transmission piece 92 arranged on the adjusting rod 70. The first transmission piece 91 is used to drive the rotation of the second transmission piece 92. The second transmission piece 92 is non-rotatably arranged on the adjusting rod 70. A connection structure such as a flat key is adopted between the two to achieve linkage and limit the free rotation of the second transmission piece 92. The adjusting rod 70 can rotate with the second transmission piece 92 and move axially along the second transmission piece 92. The first transmission piece 91 and the second transmission piece 92 adopt a bevel gear matching structure.

[0045] In addition, the adjusting rod 70 includes a main rod body 71. A threaded area 72 is arranged on the upper part of the main rod body 71. A limiting piece 73 and a guiding piece 74 are sleeved on the threaded area 72. A spring 75 is connected between the limiting piece 73 and the guiding piece 74. The guiding piece 74 is in threaded cooperation with the threaded area 72. A receiving groove 21 is formed in the mounting base 20. The threaded area 72, the limiting piece 73, the guiding piece 74 and the spring 75 are arranged in the receiving groove 21. The guiding piece 74 is restricted within the mounting base 20 and can only make a linear motion along the axial direction of the main rod body 71. The guiding piece 74 adopts a square nut structure, and the limiting piece 73 adopts a square plate structure. Tension fixation is achieved through the spring 75.

[0046] Thus, when the first transmission piece 91 rotates, the adjusting rod 70 rotates synchronously. Threaded cooperation occurs between the threaded area 72 and the guiding piece 74. While the adjusting rod 70 rotates and axially displaces, the guiding piece 74 axially displaces, changing the stretching amount of the spring 75. At the same time, a connecting protrusion 81 is arranged on the connecting frame 80. One end of the adjusting rod 70 abuts against the connecting protrusion 81. Through the axial displacement of the adjusting rod 70, on the premise that the connecting frame 80 is fixedly arranged, the axial movement of the combined end cover 10, output main body 100, mounting base 20 and corresponding components is driven to achieve belt tensioning.

[0047] The illustrated examples, embodiments, and specific forms of the present utility model have been shown and described in detail in the drawings and the foregoing description, and should also be considered illustrative rather than restrictive. The description of specific features in one embodiment does not mean that those specific features are necessarily limited to that one embodiment. The features of one embodiment can be used in combination with the features of other embodiments, which can be understood by those of ordinary skill in the art, whether or not explicitly stated as such. Exemplary embodiments have been shown and described, and all changes and improvements falling within the spirit of the present utility model are expected to be protected.

Claims

1. A mounting structure for an electric tool, for connecting an end cap (10) to an output body (100) of the electric tool, characterized in that: The mounting structure comprises: A mounting seat (20), wherein the mounting seat (20) is connected to an inner side of the end cover (10); A connecting member (30) disposed on the output body (100), wherein the connecting member (30) can pass through the mounting seat (20) and the end cover (10) in sequence; An adjusting connecting sleeve (40) rotatably arranged on the end cover (10); A second connecting member (50) is arranged in the adjusting connecting sleeve (40), the second connecting member (50) is screwed together with the first connecting member (30), the second connecting member (50) rotates with the adjusting connecting sleeve (40) and can move in the adjusting connecting sleeve (40) along the axial direction of the first connecting member (30); The adjusting connection sleeve (40) is partially confined between the mounting seat (20) and the end cover (10), and the other part extends to the outer side of the end cover (10); The second connecting member (50) is restricted between the adjusting connecting sleeve (40) and the mounting seat (20) and cannot pass through the mounting seat (20) and / or the adjusting connecting sleeve (40).

2. The installation structure of an electric tool according to claim 1, characterized in that: Also included is a tension adjustment assembly, the tension adjustment assembly comprising: An adjusting knob (60) disposed on the end cover (10); An adjustment rod (70) disposed between the end cover (10) and the mounting seat (20); The adjusting knob (60) and the adjusting rod (70) are connected in transmission via a transmission assembly, and the adjusting knob (60) can be rotated to drive the adjusting rod (70) to perform rotational motion and movement along its axial direction.

3. The installation structure of an electric tool according to claim 2, characterized in that: It also comprises a connecting frame (80) fixedly arranged on the body of the electric tool, wherein the connecting frame (80) is provided with a connecting protrusion (81), and one end of the adjusting rod (70) abuts against the connecting protrusion (81).

4. The installation structure of an electric tool according to claim 3, characterized in that: The connecting frame (80) is arranged between the mounting seat (20) and the output body (100), and an adjustment hole (82) is arranged on the connecting frame (80). The connecting member 1 (30) passes through the adjustment hole (82), and the adjustment hole (82) extends along the axial direction of the adjustment rod (70). The connecting member 1 (30) can move in the adjustment hole (82).

5. The installation structure of an electric tool according to claim 4, characterized in that: The transmission assembly comprises a transmission member 1 (91) arranged on the adjusting knob (60) and a transmission member 2 (92) arranged on the adjusting rod (70), wherein the transmission member 1 (91) is used to drive the rotation of the transmission member 2 (92), the transmission member 2 (92) is non-rotatably arranged on the adjusting rod (70), and the adjusting rod (70) can rotate with the transmission member 2 (92) and move along the axial direction of the transmission member 2 (92).

6. The installation structure of an electric tool according to claim 5, characterized in that: The adjusting rod (70) comprises a main rod body (71), the upper part of the main rod body (71) is provided with a threaded area (72), a limiting member (73) and a guiding member (74) are sleeved on the threaded area (72), a spring (75) is connected between the limiting member (73) and the guiding member (74), the guiding member (74) is threadedly matched with the threaded area (72), and the guiding member (74) is restricted in the mounting seat (20) and can only make a linear motion along the axial direction of the main rod body (71).

7. An electric tool, characterized in that: The invention comprises a mounting structure for an electric tool as claimed in any one of claims 1 to 6.

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