Electric hammer structure with access hole

Abstract

The utility model provides an electric hammer structure with an access hole, which comprises a shell, the access hole arranged on the side of the shell and a protective cover covering a detection hole, the detection hole is provided with a limit groove along the circumferential direction, and the protective cover is buckled in the limit groove, so that the protective cover is exposed out of the inner side structure of the shell from the access hole when being detached from the limit groove; the maintenance and lubrication convenience of the inner side structure of the electric hammer is improved.

Description

Technical Field

[0001] The utility model relates to the field of electric hammers, in particular to an electric hammer structure with a maintenance opening. Background Art

[0002] An electric hammer is an electric rotary hammer drill with a safety clutch attached with a pneumatic hammering mechanism. The electric hammer uses the principle of piston movement to compress gas to impact the drill bit, and it is not necessary to use much force by hand to perform hole-opening operations on hard materials such as concrete, bricks, and stones.

[0003] Due to the structural principle of the electric hammer, the inner structure of the electric hammer usually includes components such as bearings. For bearings in a long-term reciprocating motion state, regular maintenance or lubricating oil replenishment is required.

[0004] However, for the existing electric hammer structure, although the outer shell is detachable, the disassembly steps are relatively cumbersome, making the steps of maintenance and lubricating oil replenishment also relatively cumbersome. At the same time, when the existing electric hammer is being maintained, since the outer shell needs to be disassembled, it is necessary to turn off the use of the electric hammer main body, which is not conducive to observing the usage process state of the electric hammer. Content of the Utility Model

[0005] The purpose of the utility model is to provide an electric hammer structure with a maintenance opening that improves the convenience of maintenance and lubrication of the inner structure of the electric hammer.

[0006] To solve the above technical problems, the utility model provides an electric hammer structure with a maintenance opening, which includes a housing, a maintenance opening opened on the side of the housing, and a protective cover covered at the maintenance opening. The maintenance opening is provided with a limiting groove along the circumferential direction, and the protective cover is buckled in the limiting groove, so that when the protective cover is disassembled and separated from the limiting groove, the inner structure of the housing is exposed from the maintenance opening.

[0007] Furthermore, a plurality of installation holes are provided along the circumferential direction of the limiting groove, and a plurality of installation grooves are provided along the circumferential direction on the protective cover, and the installation grooves and the installation holes are arranged in one-to-one correspondence, so that after the installation parts pass through the installation grooves and the installation holes in sequence, the protective cover is fixed to the maintenance opening.

[0008] Furthermore, a groove is provided on one side of the limiting groove, and a dial is provided on one side of the protective cover. When the protective cover is buckled in the limiting groove, the dial is located at the groove.

[0009] Furthermore, a snap ring is provided on the protective cover extending towards the inner side of the maintenance opening, so that when the protective cover is buckled in the limiting groove, the snap ring is located inside the maintenance opening.

[0010] Furthermore, reinforcing ribs are provided inside the snap ring.

[0011] Furthermore, a first boss is arranged on the outer periphery of the retaining ring, a second boss corresponding to the first boss is arranged circumferentially on the inner side of the inspection port, and a sealing member is laid on the second boss, so that when the protective cover is buckled in the limiting groove, the first boss and the second boss respectively press the two sides of the sealing member.

[0012] Furthermore, a recessed structure is provided at the mounting hole along the circumferential direction, and a protruding structure is provided at the mounting groove along the circumferential direction, and the protruding structure matches the recessed structure.

[0013] Furthermore, the inspection port corresponds to the bearing on the inner side of the shell.

[0014] The beneficial effect of the utility model is that by opening the protective cover, the inspection port is exposed to the outside, so that the structure inside the shell can be directly observed through the inspection port, and the inner structure can be inspected and lubricated through the inspection port. After the processing is completed, the protective cover is buckled into the limit groove, so that the limit groove locates the installation position of the protective cover, thereby improving the protective effect of the protective cover on the inspection port. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the utility model.

[0016] Figure 2 It is a structural schematic diagram of the protective cover in the utility model.

[0017] Figure numerals: 1. Shell; 2. Inspection port; 3. Protective cover; 4. Limiting groove; 5. Mounting hole; 6. Mounting groove; 7. Recess; 8. Switch plate; 9. Retaining ring; 10. Reinforcing rib; 11. First boss; 12. Second boss; 13. Sealing member; 14. Recessed structure; 15. Protruding structure. DETAILED DESCRIPTION

[0018] 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 belong to the scope of protection of the utility model.

[0019] 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", etc., 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.

[0020] 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.

[0021] like Figure 1-2 The utility model provides an electric hammer structure with an inspection port, comprising a shell 1, an inspection port 2 opened on the side of the shell 1, and a protective cover 3 covering the inspection port 2. The inspection port 2 is provided with a limiting groove 4 along the circumferential direction, and the protective cover 3 is buckled in the limiting groove 4, so that when the protective cover 3 is disassembled from the limiting groove 4, the inner structure of the shell 1 is exposed from the inspection port 2.

[0022] By opening the protective cover, the inspection port is exposed to the outside, so that the structure inside the shell can be directly observed through the inspection port. At the same time, the inner structure can be inspected and lubricated through the inspection port. After the processing is completed, the protective cover is buckled into the limit groove, so that the limit groove locates the installation position of the protective cover, thereby improving the protective effect of the protective cover on the inspection port.

[0023] In one embodiment of the present scheme, the inspection port 2 corresponds to the bearing on the inner side of the housing 1, so as to facilitate the inspection and lubrication of the bearing position. Moreover, since the opening of the inspection port does not require the use of the electric hammer to be stopped, the bearing position can be observed during the use of the electric hammer, so as to further understand the usage of the structure there.

[0024] Preferably, the limiting groove 4 is provided with a plurality of mounting holes 5 along the circumferential direction, and the protective cover 3 is provided with a plurality of mounting grooves 6 along the circumferential direction, and the mounting grooves 6 are arranged in a one-to-one correspondence with the mounting holes 5, so that after the mounting parts pass through the mounting grooves 6 and the mounting holes 5 in sequence, the protective cover 3 is fixed to the inspection port 2.

[0025] Specifically, the installation member is inserted into the installation groove and the installation hole, so that the installation member can stably cover the protective cover in the limiting groove, thereby ensuring the protective effect of the protective cover on the inspection opening.

[0026] The mounting piece may be a connecting piece such as a bolt, and the mounting hole has an internal thread structure so that the mounting hole matches the mounting piece.

[0027] Preferably, a groove 7 is formed on one side of the limiting groove 4 , and a dial plate 8 is formed on one side of the protective cover 3 . When the protective cover 3 is buckled in the limiting groove 4 , the dial plate 8 is located at the groove 7 .

[0028] Specifically, when the protective cover is disassembled, the mounting piece at the protective cover is disassembled and detached, and then the lever position is pressed, and then one side of the protective cover is driven to tilt up through the lever to ensure that the protective cover is easily disassembled.

[0029] Preferably, a snap ring 9 is extended from the protective cover 3 to the inside of the inspection opening 2 , so that when the protective cover 3 is buckled in the limiting groove 4 , the snap ring 9 is located on the inside of the inspection opening 2 .

[0030] Specifically, the inner side of the protective cover is guided for installation by the clamping ring, and the inner side of the inspection opening can be protected by the protective cover to improve the protective effect of the protective cover.

[0031] Preferably, the inner side of the clamping ring 9 has reinforcing ribs 10 so that the reinforcing ribs can improve the overall structural strength of the protective cover and the clamping ring.

[0032] Preferably, a first boss 11 is arranged on the outer periphery of the retaining ring 9, a second boss 12 corresponding to the first boss 11 is arranged circumferentially on the inner side of the inspection port 2, and a sealing member 13 is laid on the second boss 12, so that when the protective cover 3 is buckled in the limiting groove 4, the first boss 11 and the second boss 12 respectively press the two sides of the sealing member 13.

[0033] Specifically, when the protective cover is installed at the inspection port, the first boss and the second boss are close to each other and press the two sides of the seal, and then the installation part compacts and fixes the protective cover. At this time, the two sides of the seal are squeezed with greater intensity, thereby improving the sealing effect of the seal between the first boss and the second boss, thereby preventing the lubricating oil inside the electric hammer from leaking out.

[0034] The sealing member may be a rubber ring.

[0035] Preferably, the mounting hole 5 is provided with a recessed structure 14 along the circumferential direction, and the mounting groove 6 is provided with a protruding structure 15 along the circumferential direction, and the protruding structure 15 matches the recessed structure 14 .

[0036] Specifically, when the protective cover is installed, it can be positioned not only by the limiting groove, but also by matching the recessed structure with the protruding structure, so as to improve the accuracy of the installation position of the installation part.

[0037] The present utility model is not limited to the above-mentioned optimal implementation mode. Anyone can derive other various forms of products under the inspiration of the present utility model. However, no matter what changes are made in the shape or structure, all those having the same or similar technical solutions as the present application fall within the protection scope of the present utility model.

Claims

1. An electric hammer structure with an inspection port, characterized in that: The invention comprises a shell (1), an inspection opening (2) provided on the side of the shell (1), and a protective cover (3) arranged on the inspection opening (2); the inspection opening (2) is provided with a limiting groove (4) along the circumferential direction, and the protective cover (3) is buckled in the limiting groove (4), so that when the protective cover (3) is disassembled and separated from the limiting groove (4), the inner structure of the shell (1) is exposed through the inspection opening (2).

2. The electric hammer structure with an inspection port according to claim 1, characterized in that: The limiting groove (4) is provided with a plurality of mounting holes (5) along the circumference, and the protective cover (3) is provided with a plurality of mounting grooves (6) along the circumference, and the mounting grooves (6) and the mounting holes (5) are arranged in a one-to-one correspondence, so that after the mounting parts are sequentially passed through the mounting grooves (6) and the mounting holes (5), the protective cover (3) is fixed to the inspection opening (2).

3. The electric hammer structure with an inspection port according to claim 1, characterized in that: A groove (7) is provided on one side of the limiting groove (4), and a shift plate (8) is provided on one side of the protective cover (3). When the protective cover (3) is buckled in the limiting groove (4), the shift plate (8) is located at the groove (7).

4. The electric hammer structure with an inspection port according to claim 1, characterized in that: The protective cover (3) is provided with a snap ring (9) extending toward the inside of the inspection opening (2), so that when the protective cover (3) is buckled in the limiting groove (4), the snap ring (9) is located inside the inspection opening (2).

5. The electric hammer structure with an inspection port according to claim 4, characterized in that: The inner side of the clamping ring (9) is provided with reinforcing ribs (10).

6. The electric hammer structure with an inspection port according to claim 4, characterized in that: A first boss (11) is arranged on the outer circumference of the clamping ring (9), a second boss (12) corresponding to the first boss (11) is arranged along the circumferential direction on the inner side of the inspection opening (2), and a sealing member (13) is laid on the second boss (12), so that when the protective cover (3) is buckled in the limiting groove (4), the first boss (11) and the second boss (12) respectively press the two sides of the sealing member (13).

7. The electric hammer structure with an inspection port according to claim 2, characterized in that: The mounting hole (5) is provided with a recessed structure (14) along the circumferential direction, and the mounting groove (6) is provided with a protruding structure (15) along the circumferential direction, and the protruding structure (15) matches the recessed structure (14).

8. The electric hammer structure with an inspection port according to claim 1, characterized in that: The inspection port (2) corresponds to the bearing inside the housing (1).

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