Handheld wall grooving machine

Abstract

The utility model relates to the field of wall grooving, and discloses a handheld wall grooving machine which comprises a shell a, a motor is welded to the outer wall of the shell a, a rotating shaft is fixedly connected to an output shaft of the motor, a cutting tool is detachably connected to the outer wall of the rotating shaft, a shell b is rotationally connected to the outer wall of the shell a, and a handle a is fixedly connected to the outer wall of the shell b. A handle b is fixedly connected to the outer wall of the shell b, a clamping assembly is elastically connected to the inner wall of the handle b through a reset spring a, the clamping assembly comprises a limiting block, one end of the reset spring a is fixedly connected with the inner wall of the handle b, the other end of the reset spring a is fixedly connected with the back face of the limiting block, and a plurality of limiting grooves are formed in the outer wall of the shell a. The back face of the limiting block is fixedly connected with a pull rod a. According to the utility model, the angle between the handle and the cutting tool can be adjusted to meet different working requirements.

Description

Technical Field

[0001] The utility model relates to the field of wall grooving, in particular to a handheld wall grooving machine. Background Art

[0002] The handheld wall slotting machine is a portable tool for slotting on the wall. It is usually used in the fields of construction, decoration and maintenance to slot the wall for circuit routing, pipeline installation and other work.

[0003] At present, a handheld wall slotting machine controls a tool to cut along a predetermined path through a handle of the handheld slotting machine, and gradually forms the required slots. However, when slotting in some remote corners, it is difficult for the hand holding the handle to exert force, and the angle between the cutting tool and the handle cannot be changed according to the specific working situation. Secondly, the cutting tool wears out after long-term use, and it is mostly fixed with screws and nuts. Replacement requires the help of additional disassembly tools, which is troublesome. Therefore, a handheld wall slotting machine is proposed to solve the above problems. Utility Model Content

[0004] In order to make up for the above shortcomings, the utility model provides a handheld wall slotting machine, which aims to improve the problems in the prior art that the angle between the cutting tool and the handle cannot be adjusted and the tool replacement is troublesome.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a handheld wall grooving machine, comprising a shell a, a motor is welded to the outer wall of the shell a, a rotating shaft is fixedly connected to the output shaft of the motor, a cutting tool is detachably connected to the outer wall of the rotating shaft, the outer wall of the shell a is rotatably connected to the shell b, the outer wall of the shell b is fixedly connected to the handle a, the outer wall of the shell b is fixedly connected to the handle b, the inner wall of the handle b is elastically connected to a locking assembly via a reset spring a, and the back side of the locking assembly is fixedly connected to the end of the pull rod a.

[0006] As a further description of the above technical solution:

[0007] The outer wall of the rotating shaft is detachably connected with a fixing block, the inner wall of the fixing block is elastically connected with a clamping block via a reset spring b, the back of the clamping block is fixedly connected with a sliding block, and the outer wall of the rotating shaft is provided with a clamping groove.

[0008] As a further description of the above technical solution:

[0009] The positioning assembly includes a limit block, one end of the return spring a is fixedly connected to the inner wall of the handle b, the other end of the return spring a is fixedly connected to the back of the limit block, the outer wall of the shell a is provided with a plurality of groups of limit grooves, and the back of the limit block is fixedly connected with a pull rod a.

[0010] As a further description of the above technical solution:

[0011] The outer wall of the pull rod a is slidably connected to the inner wall of the handle b.

[0012] As a further description of the above technical solution:

[0013] One end of the return spring b is fixedly connected to the inner wall of the rotating shaft, and the other end of the return spring b is fixedly connected to the back side of the clamping block.

[0014] As a further description of the above technical solution:

[0015] The outer wall of the slider is slidably connected to the inner wall of the rotating shaft.

[0016] As a further description of the above technical solution:

[0017] The outer wall of the clamping block is clamped with the inner wall of the clamping slot.

[0018] As a further description of the above technical solution:

[0019] The outer wall of the limiting block is clamped with the inner wall of the limiting groove.

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

[0021] 1. In the utility model, by setting the pull rod a, when it is necessary to adjust the angle between the handle and the cutting tool, the pull rod a is pulled outward to release the engagement with the limit groove, and then the shell b is slid along the guide rail on the back of the shell a, so as to change the angle between the handle and the tool according to the specific working situation.

[0022] 2. In the utility model, by setting a slider, when the cutting tool needs to be removed and replaced, the two groups of sliders are dragged toward the center to pull the two groups of card blocks out of the card slots. At this time, the fixed block can be removed, and then the cutting tool can be removed. Disassembly and assembly do not require the aid of additional disassembly tools, which is more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is an overall front view of a handheld wall slotting machine proposed by the utility model;

[0024] Figure 2 This is a front view schematic diagram of a pull rod a of a handheld wall slotting machine proposed by the utility model;

[0025] Figure 3 The utility model is a front schematic diagram of a cutting tool of a handheld wall slotting machine.

[0026] Legend:

[0027] 1. Housing a; 2. Motor; 3. Rotating shaft; 4. Cutting tool; 5. Fixed block; 6. Reset spring b; 7. Block; 8. Slot; 9. Slider; 10. Housing b; 11. Reset spring a; 12. Limit block; 13. Limit slot; 14. Pull rod a; 15. Handle a; 16. Handle b. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] Reference Figure 1-Figure 2 The utility model provides an embodiment: a handheld wall slotting machine, including a shell a1, a motor 2 is welded on the outer wall of the shell a1, a rotating shaft 3 is fixedly connected to the output shaft of the motor 2, a cutting tool 4 is detachably connected to the outer wall of the rotating shaft 3, the wall is slotted by the cutting tool 4, a rectangular protrusion structure is provided on the outer wall of the rotating shaft 3, the inner wall of the cutting tool 4 is clamped, and the cutting tool 4 is driven to rotate and cut under the drive of the motor 2, the outer wall of the shell a1 is rotatably connected to the shell b10, the outer wall of the shell a1 is provided with a guide rail, which is clamped into the inner wall of the shell b10, so that the shell b10 slides along the guide rail, the outer wall of the shell b10 is fixedly connected to the handle a15, and the outer wall of the shell b10 is fixedly connected to the handle b16, one hand holding the handle a15, and the other hand holding the handle b16 can better exert force, so as to control the slotting machine to slot the wall, the shell b10 slides along the outer wall of the shell a1, driving the two groups of handles and the shell a 1 to adapt to some more delicate operations, the inner wall of the handle b16 is elastically connected with a locking assembly through a reset spring a11, and the locking assembly includes a limit block 12, one end of the reset spring a11 is fixedly connected to the inner wall of the handle b16, and the other end of the reset spring a11 is fixedly connected to the back of the limit block 12, and the outer wall of the shell a1 is provided with a plurality of groups of limit grooves 13, and the outer wall of the limit block 12 is engaged with the inner wall of the limit groove 13, and the limit block 12 can squeeze the reset spring a11 to retract, thereby releasing the engagement with the limit groove 13, and at the same time, the elastic force generated by the deformation of the reset spring a11 gives the limit block 12 a thrust in the opposite direction, prompting it to reset, and the back of the limit block 12 is fixedly connected with a pull rod a14, and the back of the locking assembly is fixedly connected to the end of the pull rod a14, and the outer wall of the pull rod a14 is slidably connected to the inner wall of the handle b16, and pulling the pull rod a14 outward can drive the limit block 12 to move outward.

[0030] Reference Figure 1-Figure 3The outer wall of the rotating shaft 3 is detachably connected with a fixing block 5. After the cutting tool 4 is installed on the rotating shaft 3, the fixing block 5 is put on the rotating shaft 3 to prevent the cutting tool 4 from falling off. The inner wall of the rotating shaft 3 is elastically connected with a clamping block 7 through a reset spring b6. One end of the reset spring b6 is fixedly connected to the inner wall of the rotating shaft 3, and the other end of the reset spring b6 is fixedly connected to the back of the clamping block 7. The outer wall of the clamping block 7 is fixedly connected with a slider 9. The outer wall of the slider 9 is slidably connected to the inner wall of the rotating shaft 3. Dragging the two groups of sliders 9 toward the center can drive the clamping block 7 to squeeze the reset spring b6 to move toward the center. At the same time, the elastic force generated by the deformation of the reset spring b6 gives the clamping block 7 an outward thrust to reset it. A clamping groove 8 is opened on the inner wall of the fixing block 5. The outer wall of the clamping block 7 is clamped with the inner wall of the clamping groove 8. The two groups of clamping blocks 7 are clamped in the clamping groove 8 to fix the fixing block 5 on the rotating shaft 3 to prevent the cutting tool 4 from falling off.

[0031] Working principle: hold the handle a15 and the handle b16 with both hands respectively, start the motor 2, drive the cutting tool 4 to cut the wall, and when the direction angle of the tool needs to be adjusted according to the different slotting positions, pull the pull rod a14 outward to release the engagement between the limit block 12 and the limit slot 13, slide the shell b10 along the outer wall guide rail of the shell a1, adjust the angle between the two sets of handles and the shell a1, and make adjustments according to the specific working situation. When the cutting tool 4 needs to be replaced after long-term use, drag the two sets of sliders 9 toward the center to drive the two sets of card blocks 7 to squeeze the reset spring b6 toward the center, and at the same time, pull it out of the card slot 8. At this time, the fixed block 5 can be removed from the rotating shaft 3 to replace the cutting tool 4.

[0032] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A handheld wall slotting machine, comprising a housing a (1), characterized in that: The outer wall of the shell a (1) is welded with a motor (2), the output shaft of the motor (2) is fixedly connected with a rotating shaft (3), the outer wall of the rotating shaft (3) is detachably connected with a cutting tool (4), the outer wall of the shell a (1) is rotatably connected with the shell b (10), the outer wall of the shell b (10) is fixedly connected with a handle a (15), the outer wall of the shell b (10) is fixedly connected with a handle b (16), the inner wall of the handle b (16) is elastically connected with a locking assembly via a reset spring a (11), and the back side of the locking assembly is fixedly connected to the end of the pull rod a (14).

2. The handheld wall slotting machine according to claim 1, characterized in that: The outer wall of the rotating shaft (3) is detachably connected to a fixing block (5), the inner wall of the rotating shaft (3) is elastically connected to a clamping block (7) via a return spring b (6), the outer wall of the clamping block (7) is fixedly connected to a sliding block (9), and the inner wall of the fixing block (5) is provided with a clamping groove (8).

3. The handheld wall slotting machine according to claim 1, characterized in that: The locking assembly comprises a limit block (12), one end of the return spring a (11) is fixedly connected to the inner wall of the handle b (16), the other end of the return spring a (11) is fixedly connected to the back of the limit block (12), the outer wall of the shell a (1) is provided with a plurality of groups of limit grooves (13), and the back of the limit block (12) is fixedly connected to a pull rod a (14).

4. The handheld wall slotting machine according to claim 1, characterized in that: The outer wall of the pull rod a (14) is slidably connected to the inner wall of the handle b (16).

5. The handheld wall slotting machine according to claim 2, characterized in that: One end of the return spring b (6) is fixedly connected to the inner wall of the rotating shaft (3), and the other end of the return spring b (6) is fixedly connected to the back side of the clamping block (7).

6. The handheld wall slotting machine according to claim 2, characterized in that: The outer wall of the sliding block (9) is slidably connected to the inner wall of the rotating shaft (3).

7. The handheld wall slotting machine according to claim 2, characterized in that: The outer wall of the clamping block (7) is clamped with the inner wall of the clamping slot (8).

8. The handheld wall slotting machine according to claim 3, characterized in that: The outer wall of the limiting block (12) is clamped with the inner wall of the limiting groove (13).

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