Electric hammer for house detection

Abstract

The electric hammer comprises an electric hammer body, an operation handle fixedly connected to the rear end of the electric hammer body and an auxiliary handle arranged at the front end of the electric hammer body, the front end of the electric hammer body is fixedly sleeved with a mounting pipe sleeve, and the auxiliary handle comprises an auxiliary head sleeve and an auxiliary rod fixedly connected to the auxiliary head sleeve; a rotation stopping block is fixed to the peripheral wall of the mounting pipe sleeve in a protruding mode, a mounting hole for the mounting pipe sleeve to be inserted is formed in the auxiliary head sleeve in a penetrating mode, a plurality of rotation stopping grooves for the rotation stopping block to be inserted in a sliding mode are formed in the inner wall of the mounting hole, groove openings of the rotation stopping grooves extend to the end face of the auxiliary head sleeve, and the rotation stopping grooves are distributed around the axis of the mounting hole. A limiting assembly for limiting the auxiliary head sleeve to slide in the axial direction of the installation pipe sleeve is arranged between the auxiliary head sleeve and the installation pipe sleeve. The angle adjusting device has the effect of conveniently adjusting the angle of the auxiliary handle.

Description

Technical Field

[0001] This application relates to the field of electric hammer technology, and in particular to an electric hammer for house inspection. Background Technology

[0002] In building quality inspection, it is necessary to test the specifications of steel bars. Since steel bars are usually embedded in the concrete structure, it is necessary to use an electric hammer to break up the concrete at the test location to expose the steel bars so that their specifications can be tested.

[0003] Existing hammer drills consist of a main body, an operating handle, and an auxiliary handle. The drill bit and operating handle are located at opposite ends of the main body, while the auxiliary handle is located in the middle of the main body, close to the drill bit. When operating the hammer drill, the operator holds the operating handle with one hand and the auxiliary handle with the other. Since the operating handle, auxiliary handle, and main body are all located in the same plane, and the angle of the auxiliary handle is not adjustable, the operator's arm and hand posture while holding the auxiliary handle cannot be adjusted for different working conditions, affecting operational comfort. Therefore, further improvement is needed. Utility Model Content

[0004] To facilitate angle adjustment of the auxiliary handle, this application provides an electric hammer for house inspection.

[0005] The electric hammer for house inspection provided in this application adopts the following technical solution:

[0006] A hammer drill for house inspection includes a hammer body, an operating handle fixedly connected to the rear end of the hammer body, and an auxiliary handle disposed at the front end of the hammer body. The front end of the hammer body is fixedly fitted with an installation sleeve. The auxiliary handle includes an auxiliary head sleeve and an auxiliary rod fixedly connected to the auxiliary head sleeve. An anti-rotation block protrudes and is fixedly fixed on the outer peripheral wall of the installation sleeve. The auxiliary head sleeve has a through-hole for inserting the installation sleeve. The inner wall of the installation hole has an anti-rotation groove for sliding insertion of the anti-rotation block. The groove opening extends to the end face of the auxiliary head sleeve. Multiple anti-rotation grooves are provided and distributed around the axis of the installation hole. A limiting component is provided between the auxiliary head sleeve and the installation sleeve to restrict the auxiliary head sleeve from sliding along the axial direction of the installation sleeve.

[0007] By adopting the above technical solution, the auxiliary handle of the electric hammer can rotate and lock at multiple angles around the mounting sleeve at the front end of the electric hammer body. This allows the operator to adjust the angle of the auxiliary handle as needed under different working conditions, thereby improving operating comfort. Specifically, the cooperative design of the anti-rotation block and anti-rotation groove ensures that the auxiliary handle can be stably fixed at the selected angle after rotation adjustment, preventing accidental rotation during use; the limiting component effectively restricts the axial sliding of the auxiliary head sleeve along the mounting sleeve, ensuring the stability of the structure.

[0008] Preferably, the outer peripheral wall of the mounting sleeve is provided with an anti-detachment ring groove, the inner wall of the mounting hole is provided with a mounting groove in the radial direction, and the limiting component includes an anti-detachment block that is slidably connected to the mounting groove and inserted into the anti-detachment ring groove, an elastic element that forces the anti-detachment block to slide towards the axis of the mounting hole under normal conditions, and an unlocking element that drives the anti-detachment block to slide and retract into the mounting groove.

[0009] By adopting the above technical solution, the anti-detachment block is normally inserted into the anti-detachment ring groove under the action of the elastic element, further enhancing the fixing effect of the auxiliary handle and preventing loosening or falling off during use. The design of the unlocking component allows the operator to quickly drive the anti-detachment block into the mounting groove when the angle of the auxiliary handle needs to be adjusted, thereby unlocking and repositioning the auxiliary handle and improving the convenience and flexibility of operation.

[0010] Preferably, the auxiliary headgear has a mounting cavity communicating with the mounting groove, the anti-detachment block is fixedly connected to a sliding rod that is slidably connected to the mounting cavity, the end of the sliding rod away from the anti-detachment block is fixedly connected to a mounting plate, the elastic element is a spring built into the mounting cavity, one end of the spring is fixedly connected to the mounting plate, and the other end of the spring is fixedly connected to the inner wall of the mounting cavity.

[0011] By adopting the above technical solution, the spring, as an elastic element, is not only simple in structure and low in cost, but also provides stable elastic force, ensuring that the anti-detachment block is always tightly inserted into the anti-detachment ring groove.

[0012] Preferably, the outer wall of the auxiliary headgear has an unlocking groove communicating with the mounting cavity, and the unlocking component includes an unlocking rod that is fixedly connected to the outer wall of the slide rod and slides through the unlocking groove.

[0013] By adopting the above technical solution, the setting of the unlocking lever allows the operator to push the unlocking lever to drive the anti-detachment block to retract into the mounting groove, thereby releasing the restriction on the auxiliary headgear.

[0014] Preferably, the unlocking component further includes a push button fixedly connected to the unlocking rod and externally placed on the auxiliary headgear, the outer wall of the push button having anti-slip texture.

[0015] By adopting the above technical solution, the push button is designed to allow the operator to unlock the anti-dislodgement block by manually pushing it, so that the auxiliary head sleeve can slide along the axial direction of the installation sleeve, thereby realizing the angle adjustment of the auxiliary handle. The anti-slip texture design on the outer wall of the push button increases the friction, further improving the convenience and reliability of operation.

[0016] Preferably, the outer wall of the auxiliary headgear has a rope hole communicating with the mounting cavity, and the unlocking component includes an unlocking rope fixedly connected to the slide rod and passing through the rope hole, and a pull ring fixedly connected to the unlocking rope and externally placed on the auxiliary headgear.

[0017] By adopting the above technical solution, the operator can pull the pull ring on the auxiliary head cover to move the unlocking rope and thus drive the anti-detachment block to retract into the mounting groove, thereby completing the unlocking operation of the auxiliary handle.

[0018] Preferably, the side wall of the auxiliary headgear has an observation port communicating with the mounting hole.

[0019] By adopting the above technical solution, the observation port allows users to intuitively observe the position of the anti-detachment ring groove when installing or adjusting the auxiliary handle, thereby improving assembly efficiency and ensuring installation accuracy.

[0020] Preferably, the auxiliary rod is fitted with a rubber sleeve.

[0021] By adopting the above technical solution, the rubber sleeve on the auxiliary rod increases the friction when the operator holds the auxiliary rod, thereby improving the stability of the grip and reducing hand slippage. In addition, the rubber sleeve also has a certain cushioning effect, which can reduce hand fatigue caused by prolonged use of the electric hammer and improve operating comfort.

[0022] In summary, this utility model has the following beneficial effects:

[0023] 1. The auxiliary handle of the electric hammer can rotate and lock at multiple angles around the mounting sleeve at the front end of the electric hammer body, allowing the operator to adjust the angle of the auxiliary handle as needed under different working conditions, thereby improving operating comfort.

[0024] 2. Under the action of the elastic element, the anti-detachment block is normally inserted into the anti-detachment ring groove, further enhancing the fixing effect of the auxiliary handle and preventing loosening or falling off during use. The design of the unlocking element allows the operator to quickly drive the anti-detachment block into the mounting groove when the angle of the auxiliary handle needs to be adjusted, thereby unlocking and repositioning the auxiliary handle and improving the convenience and flexibility of operation. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of an electric hammer for house inspection in Example 1;

[0026] Figure 2 This is a schematic diagram of the connection structure between the mounting sleeve and the auxiliary head sleeve in Example 1;

[0027] Figure 3 This is a schematic diagram of the limiting component in Embodiment 1;

[0028] Figure 4 This is a schematic diagram of the unlocking component in Embodiment 1;

[0029] Figure 5 This is a schematic diagram of the auxiliary handle in Embodiment 2;

[0030] Figure 6 This is a schematic diagram of the unlocking component in Embodiment 2;

[0031] Figure 7 This is a schematic diagram of the auxiliary handle in Embodiment 3;

[0032] Figure 8 This is a schematic diagram of the internal structure of the auxiliary rod in Example 3.

[0033] In the diagram: 1. Main body of the electric hammer; 2. Operating handle; 3. Auxiliary handle; 31. Auxiliary head cover; 311. Mounting hole; 312. Anti-rotation groove; 313. Mounting groove; 314. Mounting cavity; 315. Unlocking groove; 316. Observation port; 317. Rope threading hole; 32. Auxiliary rod; 321. Positioning protrusion; 322. Heat dissipation cavity; 323. Battery holder; 324. Motor; 325. Fan wheel; 326. Button; 327. Air inlet; 328. Air outlet; 33. Rubber sleeve; 331. Positioning hole; 4. Mounting tube sleeve; 41. Anti-rotation block; 42. Anti-detachment ring groove; 5. Limiting component; 51. Anti-detachment block; 511. Slide rod; 512. Mounting plate; 52. Spring; 53. Unlocking component; 531. Unlocking rod; 532. Push button; 533. Unlocking rope; 534. Pull ring. Detailed Implementation

[0034] The following is in conjunction with the appendix Figure 1-8 This application will be described in further detail.

[0035] Example 1:

[0036] This application discloses an electric hammer for house inspection, as shown in the embodiments below. Figure 1 , Figure 2 The device includes an electric hammer body 1, an operating handle 2 fixedly connected to the rear end of the electric hammer body 1, and an auxiliary handle 3 disposed at the front end of the electric hammer body 1. The operating handle 2 and the electric hammer body 1 are integrally fixed. An installation sleeve 4 is fixedly sleeved at the front end of the electric hammer body 1. An anti-rotation block 41 protrudes and is fixed on the outer peripheral wall of the rear end of the installation sleeve 4. In this embodiment, four anti-rotation blocks 41 are provided and are evenly distributed around the axis of the installation sleeve 4.

[0037] Reference Figure 2 , Figure 3The auxiliary handle 3 includes an auxiliary head sleeve 31 and an auxiliary rod 32 fixedly connected to the auxiliary head sleeve 31. The auxiliary head sleeve 31 has a through mounting hole 311 for inserting the mounting sleeve 4. The auxiliary rod 32 is fitted with a rubber sleeve 33. Both ends of the auxiliary head sleeve 31 have anti-rotation grooves 312, which are connected to the inner peripheral wall of the mounting hole 311. In this embodiment, twelve anti-rotation grooves 312 are provided and distributed around the axis of the mounting hole 311. The outer peripheral wall of the front end of the mounting sleeve 4 has an anti-detachment ring groove 42, and the inner wall of the mounting hole 311 has a radial mounting groove 313.

[0038] Reference Figure 3 , Figure 4 A limiting component 5 is provided between the auxiliary head sleeve 31 and the mounting sleeve 4 to restrict the auxiliary head sleeve 31 from sliding along the axial direction of the mounting sleeve 4. The limiting component 5 includes an anti-detachment block 51 that is slidably connected to the mounting groove 313 and inserted into the anti-detachment ring groove 42, an elastic element that forces the anti-detachment block 51 to slide towards the axis of the mounting hole 311 under normal conditions, and an unlocking element 53 that drives the anti-detachment block 51 to slide and retract into the mounting groove 313. The auxiliary head sleeve 31 has a mounting cavity 314 located below the mounting groove 313 and communicating with the mounting groove 313. The anti-detachment block 51 is fixedly connected to a slide rod 511 that is slidably connected to the mounting cavity 314. The end of the slide rod 511 away from the anti-detachment block 51 is fixedly connected to a mounting plate 512. The elastic element is a spring 52 built into the mounting cavity 314. One end of the spring 52 is fixedly connected to the mounting plate 512, and the other end of the spring 52 is fixedly connected to the inner wall of the mounting cavity 314.

[0039] In this embodiment, the outer wall of the auxiliary headgear 31 has an unlocking groove 315 communicating with the mounting cavity 314. The unlocking component 53 includes an unlocking rod 531 fixedly connected to the outer wall of the slide rod 511 and slidably passing through the unlocking groove 315, and a push button 532 fixedly connected to the unlocking rod 531 and externally placed on the auxiliary headgear 31. The outer wall of the push button 532 has anti-slip texture. The side wall of the auxiliary headgear 31 has an observation port 316 communicating with the mounting hole 311. The position of the anti-detachment ring groove 42 can be observed through the observation port 316 to ensure installation accuracy.

[0040] The implementation principle of the electric hammer for house inspection in this embodiment is as follows: When assembling the auxiliary sleeve and the mounting sleeve 4, a force is first applied to the push button 532, causing the unlocking rod 531, the sliding rod 511, and the anti-detachment block 51 to slide away from the axis of the mounting hole 311, so that the anti-detachment block 51 retracts into the mounting groove 313. At this time, the spring 52 undergoes elastic deformation and has elastic potential energy. Then, the auxiliary sleeve is axially fitted onto the mounting sleeve 4, and the anti-rotation block 41 and the anti-rotation groove 312 cooperate to restrict the auxiliary sleeve. The relative rotation of the sleeve and the mounting sleeve 4, and the multiple anti-rotation grooves 312 distributed around the axis of the mounting hole 311 provide a variety of selectable fixing angles, enhancing flexibility. When the anti-rotation block 41 is inserted into the anti-rotation groove 312, the anti-detachment block 51 and the anti-detachment ring groove 42 are aligned. The anti-detachment block 51 slides back to its original position under the action of the spring 52, so that the anti-detachment block 51 is inserted into the anti-detachment ring groove 42, restricting the axial sliding of the auxiliary head sleeve 31 relative to the mounting sleeve 4, thereby fixing the auxiliary head sleeve 31 and the mounting sleeve 4.

[0041] Example 2:

[0042] The difference from Example 1 is that, referring to Figure 5 , Figure 6 The outer wall of the auxiliary headgear 31 has a rope hole 317 that connects to the inner wall of the bottom of the mounting cavity 314. The unlocking component 53 includes an unlocking rope 533 that is fixedly connected to the lower end face of the mounting plate 512 and passes through the rope hole 317, and a pull ring 534 that is fixedly connected to the unlocking rope 533 and is externally placed on the auxiliary headgear 31. The operator can pull the pull ring 534 externally placed on the auxiliary headgear 31 to drive the unlocking rope 533 to move the slide bar 511, thereby driving the anti-detachment block 51 to retract into the mounting groove 313, thus completing the unlocking operation of the auxiliary handle 3.

[0043] Example 3:

[0044] The difference from Example 1 is that, referring to Figure 7 , Figure 8The auxiliary rod 32 has a protruding positioning protrusion 321 fixed on its outer wall. Multiple positioning protrusions 321 are provided. The outer wall of the rubber sleeve 33 has a positioning hole 331 through which the positioning protrusions 321 are embedded. The auxiliary rod 32 has a heat dissipation cavity 322. An air inlet 327 is opened on the lower end face of the auxiliary rod 32. An air outlet 328 communicating with the heat dissipation cavity 322 is opened on the outer wall of the positioning protrusion 321. A motor 324 is fixedly connected to the inner wall of the heat dissipation cavity 322. A fan wheel 325 is fixedly connected to the output shaft of the motor 324. The auxiliary lever 32 has a built-in battery holder 323 that powers the motor 324. The lower end of the auxiliary lever 32 is provided with a button 326 to control the start and stop of the motor 324. When the operator holds the auxiliary handle 3 and presses the button 326 after his hands are sweaty, the motor 324 starts and drives the fan wheel 325 to rotate, so that airflow is formed inside the heat dissipation cavity 322 and the airflow is discharged through the air outlet 328, so that the sweat can be dried quickly and prevent slipping caused by sweat.

[0045] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A hammer drill for house inspection, characterized in that: The electric hammer includes a main body (1), an operating handle (2) fixedly connected to the rear end of the main body (1), and an auxiliary handle (3) located at the front end of the main body (1). The front end of the main body (1) is fixedly fitted with an installation sleeve (4). The auxiliary handle (3) includes an auxiliary head sleeve (31) and an auxiliary rod (32) fixedly connected to the auxiliary head sleeve (31). An anti-rotation block (41) is fixedly protruding from the outer peripheral wall of the installation sleeve (4). The auxiliary head sleeve (31) has a through opening for the installation. The mounting hole (311) into which the tube sleeve (4) is inserted has an anti-rotation groove (312) on the inner wall of the mounting hole (311) for the anti-rotation block (41) to slide and insert. The groove opening of the anti-rotation groove (312) extends to the end face of the auxiliary head sleeve (31). Multiple anti-rotation grooves (312) are provided and distributed around the axis of the mounting hole (311). A limiting component (5) is provided between the auxiliary head sleeve (31) and the mounting tube sleeve (4) to limit the sliding of the auxiliary head sleeve (31) along the axial direction of the mounting tube sleeve (4).

2. The electric hammer for house inspection according to claim 1, characterized in that: The outer peripheral wall of the mounting sleeve (4) is provided with an anti-detachment ring groove (42), and the inner wall of the mounting hole (311) is provided with a mounting groove (313) in the radial direction. The limiting component (5) includes an anti-detachment block (51) that is slidably connected to the mounting groove (313) and inserted into the anti-detachment ring groove (42), an elastic element that forces the anti-detachment block (51) to slide towards the axis of the mounting hole (311) under normal conditions, and an unlocking element (53) that drives the anti-detachment block (51) to slide and retract into the mounting groove (313).

3. The electric hammer for house inspection according to claim 2, characterized in that: The auxiliary headgear (31) has a mounting cavity (314) connected to the mounting groove (313). The anti-detachment block (51) is fixedly connected to a sliding rod (511) that is slidably connected to the mounting cavity (314). The end of the sliding rod (511) away from the anti-detachment block (51) is fixedly connected to a mounting plate (512). The elastic element is a spring (52) built into the mounting cavity (314). One end of the spring (52) is fixedly connected to the mounting plate (512), and the other end of the spring (52) is fixedly connected to the inner wall of the mounting cavity (314).

4. The electric hammer for house inspection according to claim 3, characterized in that: The outer wall of the auxiliary headgear (31) is provided with an unlocking groove (315) that communicates with the mounting cavity (314). The unlocking component (53) includes an unlocking rod (531) that is fixedly connected to the outer wall of the slide rod (511) and slides through the unlocking groove (315).

5. The electric hammer for house inspection according to claim 4, characterized in that: The unlocking component (53) also includes a push button (532) fixedly connected to the unlocking rod (531) and externally placed on the auxiliary head cover (31), the outer wall of the push button (532) having anti-slip texture.

6. The electric hammer for house inspection according to claim 3, characterized in that: The outer wall of the auxiliary headgear (31) is provided with a rope hole (317) communicating with the mounting cavity (314). The unlocking component (53) includes an unlocking rope (533) fixedly connected to the slide rod (511) and passing through the rope hole (317), and a pull ring (534) fixedly connected to the unlocking rope (533) and externally placed on the auxiliary headgear (31).

7. The electric hammer for house inspection according to claim 2, characterized in that: The auxiliary headgear (31) has an observation port (316) on its side wall that is connected to the mounting hole (311).

8. The electric hammer for house inspection according to claim 1, characterized in that: The auxiliary rod (32) is fitted with a rubber sleeve (33).

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