Electric tool and shell thereof

Abstract

The utility model discloses an electric tool and a shell thereof. The shell comprises a shell body and a connecting mechanism. The housing includes a first mounting member and a second mounting member. The connecting mechanism comprises at least one reinforcing structure and at least one connecting bolt, the reinforcing structure comprises a limiting column and an inserting hole, and the limiting column is inserted into the inserting hole. Any one of the limiting column and the inserting hole is formed in the first mounting component, and the other one of the limiting column and the inserting hole is formed in the second mounting component. Any one of the first mounting component and the second mounting component forms an insertion channel, and the other one forms a threaded hole. The inserting channels correspond to the threaded holes in position and are communicated with the threaded holes, and the connecting bolts penetrate through the inserting channels and are installed in the threaded holes in a threaded mode so that the first installation component and the second installation component can be assembled into a whole.

Description

Technical Field

[0001] The utility model relates to the technical field of electric tools, in particular to an electric tool and a housing thereof. Background Art

[0002] An electric drill is one of the commonly used electric tools. The electric drill includes a housing, an output component and a driving component. The housing includes a first mounting component and a second mounting component. For ease of maintenance, the first mounting component and the second mounting component are detachably designed and connected by bolts. However, when the electric drill drills a hole in a wall or screws a screw into a fixed object, the wall or the fixed object transmits resistance in the opposite direction of the output component's rotation to the output component. The resistance to the output component is transmitted to the first mounting component on which the output component is mounted. When the electric drill is used for a long time, the connecting bolts between the first mounting component and the second mounting component may separate due to the resistance, which may cause at least one of the first mounting component and the second mounting component to break. Even when the resistance is too large, the bolt may break.

[0003] In order to avoid the bolts from breaking, manufacturers usually increase the number of bolts to improve the connection strength between the first mounting component and the second mounting component. However, the first mounting component and the second mounting component need to have more through holes to match the corresponding number of bolts. If the size remains unchanged, the setting of too many holes will weaken its strength. Therefore, in order to reserve a predetermined number of threaded holes, the radial size of the shell will inevitably increase. In addition, the increase in the size of the shell and the increase in the number of bolts made of metal will increase the weight of the electric drill, resulting in more laborious operation and inconvenience for the user.

[0004] In addition, in the prior art, before the first mounting component and the second mounting component are connected by bolts, the holes of the first mounting component and the second mounting component need to be aligned. Since there are multiple holes, there will always be deviations due to visual misalignment during alignment. As a result, when tightening the bolts later, it is easy to cause damage to the threads on the wall of the threaded hole, which in turn leads to poor stability of the electric drill, affecting the subsequent use of the electric drill. Utility Model Content

[0005] In order to solve the above technical problems and achieve at least one advantage of the present invention, the present invention provides a housing, which includes:

[0006] a housing, the housing comprising a first mounting component and a second mounting component;

[0007] A connecting mechanism, the connecting mechanism includes at least one reinforcement structure and at least one connecting bolt, the reinforcement structure includes a limit column and an insertion hole, the limit column is inserted into the insertion hole, either the limit column or the insertion hole is set on the first mounting component, and the other is set on the second mounting component; either the first mounting component and the second mounting component form an insertion channel, and the other forms a threaded hole; the insertion channel corresponds to the position of the threaded hole and is connected, the connecting bolt passes through the insertion channel and is threadedly installed in the threaded hole to assemble the first mounting component and the second mounting component into one.

[0008] According to an embodiment of the utility model, the second mounting component forms the insertion hole, the first mounting component forms the limiting column, the limiting column and the first mounting component are integrally formed, and the limiting column and the first mounting component are both made of aluminum material.

[0009] According to an embodiment of the present invention, the second mounting component forms the limiting column, and the first mounting component forms the insertion hole.

[0010] According to one embodiment of the utility model, the second mounting component includes a middle cover and a rear cover, the middle cover is installed between the rear cover and the first mounting component, the middle cover and the rear cover together form the insertion channel or the threaded hole, and the limiting column or the insertion hole is arranged on the side of the middle cover facing the first mounting component.

[0011] According to one embodiment of the utility model, the first mounting component forms a mounting wall on the side facing the middle cover, and the middle cover forms an assembly wall on the side facing the first mounting component. The connecting mechanism is provided with a plurality of reinforcing structures, and a plurality of the limiting columns or a plurality of the insertion holes are distributed on the mounting wall at circumferential intervals, and the other is distributed on the assembly wall at intervals.

[0012] According to one embodiment of the utility model, part of the middle cover is inserted into the back cover, and the second mounting component forms a snap-fit ​​structure between the middle cover and the back cover, and the snap-fit ​​structure includes a snap-fit ​​strip and a snap-fit ​​slot. Either the middle cover or the back cover forms the snap-fit ​​strip, and the other forms the snap-fit ​​slot. When part of the middle cover is inserted into the back cover, the snap-fit ​​strip is inserted into the snap-fit ​​slot.

[0013] According to one embodiment of the utility model, one end portion of the rear cover toward the middle cover partially protrudes toward the first mounting component to form a rotation-stopping portion, and the first mounting component forms a rotation-stopping groove. When the first mounting component and the second mounting component are assembled, the rotation-stopping portion is interference-fitted into the rotation-stopping groove.

[0014] In order to solve the above technical problems and achieve at least one advantage of the present invention, the present invention provides a housing, which comprises:

[0015] A housing, the housing comprising a first mounting component and a second mounting component, the second mounting component comprising an intermediate cover and a rear cover, the intermediate cover being mounted between the rear cover and the first mounting component;

[0016] A connecting mechanism, the connecting mechanism includes and at least one connecting bolt, one of the first mounting component and the second mounting component forms an insertion channel, and the other forms a threaded hole; the insertion channel corresponds to and is connected to the threaded hole, the connecting bolt passes through the insertion channel and is threadedly installed in the threaded hole to assemble the first mounting component and the second mounting component into one body; one end of the rear cover toward the middle cover partially protrudes toward the first mounting component to form a stopper, and the first mounting component forms a stopper groove, and when the first mounting component and the second mounting component are assembled, the stopper is interference-fitted into the stopper groove.

[0017] In order to solve the above technical problems and achieve at least one advantage of the utility model, the utility model provides an electric tool, the electric tool comprising:

[0018] The housing as described in the above embodiment;

[0019] a driving mechanism, the driving mechanism being mounted on the second mounting member;

[0020] An output component is mounted on the first mounting component, and the output component is rotationally connected to the rotation driving mechanism in a manner capable of driving a screw to rotate.

[0021] According to an embodiment of the utility model, the electric tool further comprises a handheld component, and the handheld component is installed below the second installation component. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A structural sectional view of the electric tool of the utility model is shown.

[0023] Figure 2 An exploded view of the housing of the present invention is shown.

[0024] Figure 3 The schematic diagram of the structure of the middle cover of the utility model is shown.

[0025] Figure 4 The schematic diagram of the structure of the rear cover of the utility model is shown. DETAILED DESCRIPTION

[0026] The following description is used to disclose the utility model so that those skilled in the art can implement the utility model. The preferred embodiments described below are only examples, and those skilled in the art can think of other obvious variations. The basic principles of the utility model defined in the following description can be applied to other embodiments, variations, improvements, equivalents, and other technical solutions that do not deviate from the spirit and scope of the utility model.

[0027] Those skilled in the art should understand that, in the disclosure of the present invention, the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the above terms should not be understood as limiting the present invention.

[0028] It is to be understood that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element may be one, while in another embodiment, the number of the element may be multiple, and the term "one" should not be understood as a limitation on the quantity.

[0029] refer to Figure 1 An electric tool according to a preferred embodiment of the utility model will be described in detail below. The electric tool includes a housing 100, a driving mechanism 200 and an output component 300, wherein the output component 300 is connected to the driving mechanism 200 in a manner that can drive a screw to rotate.

[0030] In one example, the driving mechanism 200 is implemented to include a motor, and the output component 300 includes a bit socket.

[0031] refer to Figures 1 to 4 The housing 100 includes a shell 110 and a connecting mechanism 120. The connecting mechanism 120 includes at least one reinforcing structure 121 and at least one connecting bolt 122. The shell 110 includes a first mounting component 111 and a second mounting component 112, wherein the driving mechanism 200 is mounted on the second mounting component 112, and the output component 300 is mounted on the first mounting component 111.

[0032] The reinforcing structure 121 includes a limiting column 1211 and an insertion hole 1212, and the limiting column 1211 is inserted into the insertion hole 1212. Either the limiting column 1211 or the insertion hole 1212 is disposed on the first mounting component 111, and the other is disposed on the second mounting component 112.

[0033] One of the first mounting component 111 and the second mounting component 112 forms an insertion channel 1101, and the other forms a threaded hole 1102. The insertion channel 1101 and the threaded hole 1102 correspond to each other and are connected, and the connecting bolt 122 passes through the insertion channel 1101 and is threadedly installed in the threaded hole 1102, so that the first mounting component 111 and the second mounting component 112 are assembled into one body.

[0034] It can be understood that, in the process of the electric tool driving the screw into the fixed object, the fixed object transmits resistance in the opposite direction of the direction in which the output component 300 drives the screw into the fixed object to the output component 300 through the screw, and the resistance encountered by the output component 300 is transmitted to the first mounting component 111, and the first mounting component 111 transmits the resistance to the second mounting component 112 through the connecting bolt 122 and the limiting column 1211. The provision of the limiting column 1211 can improve the connection strength between the first mounting component 111 and the second mounting component 112 without increasing the number of the connecting bolts 122. Since the prior art increases the number of the connecting bolts 122 to improve the connection strength between the first mounting component 111 and the second mounting component 112, which will inevitably increase the radial dimension of the shell 110 and the weight of the outer shell 100, the limiting column 1211 and the insertion hole 1212 can be integrally formed with the first mounting component 111 and the second mounting component 112 respectively, without changing the radial dimension of the shell 110 and the weight of the outer shell 100, so that the user can hold the power tool.

[0035] It is worth mentioning that, in the process of assembling the first installation component 111 and the second installation component 112 into one body through the connection mechanism 120, the first installation component 111 and the second installation component 112 are preliminarily assembled in a manner that the limiting column 1211 is plugged into the insertion hole 1212. After the limiting column 1211 is plugged into the insertion hole 1212, the insertion channel 1101 and the threaded hole 1102 can be aligned, and then the connecting bolt 122 can easily pass through the insertion channel 1101 and be threadedly installed in the threaded hole 1102, thereby avoiding repeated adjustment of the position and posture of the first installation component 111 and the second installation component 112 during the assembly process to align the insertion channel 1101 with the threaded hole 1102.

[0036] Preferably, at least three groups of the reinforcing structures 121 are provided. After the limiting posts 1211 are assembled with the insertion holes 1212 , at least a triangular structure is formed between the limiting posts 1211 to increase the stability of the connection between the first mounting component 111 and the second mounting component 112 .

[0037] In one embodiment, the first installation component 111 forms the insertion hole 1212 , and the second installation component 112 forms the limiting column 1211 .

[0038] As a deformable method, the second installation component 112 forms the insertion hole 1212 , and the first installation component 111 forms the limiting column 1211 .

[0039] In a preferred embodiment, the limiting column 1211 and the first mounting component 111 are integrally formed, and the limiting column 1211 and the first mounting component 111 are both made of aluminum material, and the aluminum material has a predetermined strength. In this way, the first mounting component 111 and the limiting column 1211 have strength while also being able to reduce the weight of the shell 110.

[0040] Preferably, the second mounting component 112 includes a middle cover 1121 and a rear cover 1122, and the middle cover 1121 and the rear cover 1122 together form the insertion channel 1101 or the threaded hole 1102. To facilitate understanding by those skilled in the art, the middle cover 1121 and the rear cover 1122 together form the insertion channel 1101 as an example. The insertion channel 1101 includes a first connection portion 11011 and a second connection portion 11012, wherein the middle cover 1121 forms the first connection portion 11011, and the rear cover 1122 forms the second connection portion 11012.

[0041] The driving mechanism 200 is installed on the rear cover 1122, and the intermediate cover 1121 is installed between the rear cover 1122 and the first mounting component 111. The output component 300 is connected to the driving mechanism 200 through the intermediate cover 1121, and the intermediate cover 1121 is configured to transmit the driving force generated by the operation of the driving mechanism 200 to the output component 300. The limiting column 1211 or the insertion hole 1212 is provided on a side of the intermediate cover 1121 facing the first mounting component 111.

[0042] Preferably, the first mounting component 111 forms a mounting wall 1111 on a side facing the middle cover 1121. The middle cover 1121 forms an assembly wall 11211 on a side facing the first mounting component 111. The connection mechanism 120 is provided with a plurality of the reinforcing structures 121, and a plurality of the limiting columns 1211 or a plurality of the inserting holes 1212 are distributed on the mounting wall 1111 at intervals in a circumference, and the other is distributed on the assembly wall 11211 at intervals. In this way, the reinforcing structures 121 distributed along the circumference can help the first mounting component 111 transfer resistance to the second mounting component 112 in the circumferential direction.

[0043] In one implementation, part of the middle cover 1121 is plugged into the rear cover 1122 to facilitate later maintenance.

[0044] Preferably, the second mounting member 112 forms a snap-fit ​​structure 1123 between the middle cover 1121 and the rear cover 1122. The snap-fit ​​structure 1123 includes a snap-fit ​​strip 11231 and a snap-fit ​​groove 11232. When part of the middle cover 1121 is plugged into the rear cover 1122, the snap-fit ​​strip 11231 is plugged into the snap-fit ​​groove 11232. The assembly of the snap-fit ​​groove 11232 and the snap-fit ​​strip 11231 can increase the bearing capacity of the middle cover 1121 and the rear cover 1122 in the circumferential direction, so as to reduce the torque force borne by the connecting bolt 122.

[0045] In one embodiment, the locking strip 11231 is formed on the middle cover 1121 , and the locking slot 11232 is formed on the rear cover 1122 .

[0046] As a deformable structure, the card strip 11231 is formed on the rear cover 1122 , and the card slot 11232 is formed on the middle cover 1121 .

[0047] Furthermore, one end of the rear cover 1122 toward the middle cover 1121 partially protrudes toward the first mounting member 111 to form a rotation-stopping portion 11221, and the first mounting member 111 forms a rotation-stopping groove 11101. When the first mounting member 111 and the second mounting member 112 are assembled, the rotation-stopping portion 11221 is interference-fitted into the rotation-stopping groove 11101, so that the resistance experienced by the first mounting member 111 can be transferred to the rear cover 1122 through the cooperation between the rotation-stopping portion 11221 and the rotation-stopping groove 11101. It can be understood by those skilled in the art that, in this embodiment, the reinforcing structure 121 may not be provided.

[0048] Furthermore, the electric tool further comprises a hand-held component 400. The hand-held component 400 is installed below the rear cover 1122 to provide a gripping portion for the user.

[0049] It should be understood by those skilled in the art that the embodiments of the present invention described above and shown in the accompanying drawings are only examples and do not limit the present invention. The advantages of the present invention have been fully and effectively realized. The functions and structural principles of the present invention have been demonstrated and explained in the embodiments, and the embodiments of the present invention may be deformed or modified in any way without departing from the principles.

Claims

1. A housing, characterized in that The housing comprises: a housing, the housing comprising a first mounting component and a second mounting component; A connecting mechanism, the connecting mechanism includes at least one reinforcement structure and at least one connecting bolt, the reinforcement structure includes a limit column and an insertion hole, the limit column is inserted into the insertion hole, either the limit column or the insertion hole is set on the first mounting component, and the other is set on the second mounting component; either the first mounting component and the second mounting component form an insertion channel, and the other forms a threaded hole; the insertion channel corresponds to the position of the threaded hole and is connected, the connecting bolt passes through the insertion channel and is threadedly installed in the threaded hole to assemble the first mounting component and the second mounting component into one.

2. The housing according to claim 1, characterized in that: The second mounting component forms the insertion hole, the first mounting component forms the limiting column, the limiting column and the first mounting component are formed in one piece, and the limiting column and the first mounting component are both made of aluminum material.

3. The housing according to claim 1, characterized in that: The second mounting component forms the limiting column, and the first mounting component forms the insertion hole.

4. The housing according to claim 1, characterized in that: The second mounting component includes a middle cover and a rear cover, the middle cover is installed between the rear cover and the first mounting component, the middle cover and the rear cover together form the insertion channel or the threaded hole, and the limiting column or the insertion hole is arranged on the side of the middle cover facing the first mounting component.

5. The housing according to claim 4, characterized in that: The first mounting component forms a mounting wall on the side facing the middle cover, and the middle cover forms an assembly wall on the side facing the first mounting component. The connecting mechanism is provided with a plurality of the reinforcing structures, and a plurality of the limiting columns or a plurality of the insertion holes are distributed on the mounting wall at circumferential intervals, and the other is distributed on the assembly wall at intervals.

6. The housing according to claim 5, characterized in that: Part of the middle cover is plugged into the back cover, and the second mounting component forms a snap-fit ​​structure between the middle cover and the back cover, and the snap-fit ​​structure includes a snap-fit ​​strip and a snap-fit ​​slot. Either the middle cover or the back cover forms the snap-fit ​​strip, and the other forms the snap-fit ​​slot. When part of the middle cover is plugged into the back cover, the snap-fit ​​strip is plugged into the snap-fit ​​slot.

7. The housing according to claim 6, characterized in that: One end portion of the rear cover toward the middle cover partially protrudes toward the first mounting component to form a rotation-stopping portion, and the first mounting component forms a rotation-stopping groove. When the first mounting component and the second mounting component are assembled, the rotation-stopping portion is interference-fitted into the rotation-stopping groove.

8. A housing, characterized in that The housing comprises: A housing, the housing comprising a first mounting component and a second mounting component, the second mounting component comprising an intermediate cover and a rear cover, the intermediate cover being mounted between the rear cover and the first mounting component; A connecting mechanism, the connecting mechanism includes and at least one connecting bolt, one of the first mounting component and the second mounting component forms an insertion channel, and the other forms a threaded hole; the insertion channel corresponds to and is connected to the threaded hole, the connecting bolt passes through the insertion channel and is threadedly installed in the threaded hole to assemble the first mounting component and the second mounting component into one body; one end of the rear cover toward the middle cover partially protrudes toward the first mounting component to form a stopper, and the first mounting component forms a stopper groove, and when the first mounting component and the second mounting component are assembled, the stopper is interference-fitted into the stopper groove.

9. An electric tool, characterized in that: The electric tool comprises: The housing according to any one of claims 1 to 8; a driving mechanism, the driving mechanism being mounted on the second mounting member; An output component is mounted on the first mounting component, and the output component is rotationally connected to the rotation driving mechanism in a manner capable of driving a screw to rotate.

10. The electric tool according to claim 9, characterized in that: The electric tool further comprises a handheld component, and the handheld component is mounted below the second mounting component.

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