Electric hammer with Y-shaped ring sealing structure

Abstract

The utility model discloses an electric hammer with a Y-shaped ring sealing structure, which comprises an electric hammer machine body and an electric hammer machine body matched with the electric hammer machine body, a movable sleeve is arranged on one side, far away from the electric hammer machine body, of the electric hammer machine body, and a Y-shaped sealing ring capable of telescopically sealing is arranged between the electric hammer machine body and the movable sleeve. A damping handle used for damping and impact resistance is arranged on the side, away from the electric hammer body, of the electric hammer body. According to the electric hammer, the Y-shaped sealing ring is arranged, the reciprocating motion of the movable sleeve can be guaranteed, meanwhile, the sealing performance between the movable sleeve and the electric hammer body is improved, dust is effectively prevented from entering the electric hammer body in the working process, and therefore stable operation of the electric hammer body is guaranteed; when a user holds the damping handle, a good damping protection effect can be achieved on the arms of the user, and therefore the problems that the arms of the user are numb and tired due to the fact that vibration is directly transmitted to the arms are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of electric hammers, in particular to an electric hammer with a Y-ring sealing structure. Background Art

[0002] A rotary hammer is a type of electric drill, primarily used for drilling holes in concrete, floor slabs, brick walls, and stone. The rotary hammer is based on an electric drill, but with the addition of a piston with a crankshaft and connecting rod driven by an electric motor. This reciprocating compressed air within a cylinder causes the air pressure within the cylinder to fluctuate periodically. This fluctuating air pressure drives a hammer in the cylinder to strike the top of the drill bit back and forth, much like hitting the drill bit with a hammer, hence the name rotary hammer. Because the drill bit of the rotary hammer can both rotate and reciprocate, it requires minimal manual effort and can create holes ranging from 6 to 100 mm in hard materials such as concrete, brick, and stone.

[0003] For example, the disclosure (announcement) number: CN206899163U discloses a sealed dust cover for an electric hammer, which is characterized in that: it includes a plastic kit, an elastic telescopic sleeve, an elastic dust cover, a metal wear-resistant ring, a drill bit, a sealing gasket, an arc-shaped fixed clip, and a connecting rod; the outer wall of the plastic kit is provided with two circles of fixed grooves, the ports of the elastic telescopic sleeve and the elastic dust cover are sequentially sleeved in the corresponding fixed grooves, the elastic dust cover is located inside the elastic telescopic sleeve, wherein the other port of the elastic dust cover is tightened to form a convex portion, and the convex portion is inlaid with a metal wear-resistant ring; the drill bit is composed of a square connecting portion at the tail, a standard extension portion added in the middle, and a working portion of the head, and a hole is added in the middle of an ordinary drill bit. The standard extension part of each drill bit is the same, and the diameter of the standard extension part is slightly smaller than the inner diameter of the metal wear-resistant ring. A sealing groove is provided on the standard extension part, and a sealing gasket is provided in the sealing groove. The arc-shaped fixing clip is fixed to the plastic kit on both sides by connecting rods, and the arc-shaped fixing clip is inserted into the clamp of the electric hammer handle and fixed by tightening the clamp. At this time, the plastic kit is just fixed on the chuck of the electric hammer, and the square connecting part of the drill bit is fixed to the electric hammer chuck through the metal wear-resistant ring of the elastic dust cover. The standard extension part of the drill bit is in the metal wear-resistant ring, and the sealing gasket is against the end of the elastic dust cover to cover the tiny gap between the metal wear-resistant ring and the standard extension part of the drill bit.

[0004] Although the above technical solution solves the corresponding technical problem, it still has the following defects:

[0005] When the electric hammer of the above technical solution is used, it will generate strong vibrations, which will directly act on the arms, thereby easily causing numbness and fatigue of the user's arms. Utility Model Content

[0006] The purpose of the utility model is to provide an electric hammer with a Y-ring sealing structure, which not only increases the sealing between the movable sleeve and the electric hammer body while ensuring the reciprocating motion of the movable sleeve by arranging the Y-ring, thereby effectively preventing dust from entering the electric hammer body during operation, thereby ensuring the stable operation of the electric hammer body, but also, by arranging the buffer spring, can play a good shock-absorbing and protective role for the user's arm when the user holds the shock-absorbing handle, thereby avoiding the problem of numbness and fatigue of the user's arm caused by direct transmission of vibration to the arm.

[0007] In order to achieve the above-mentioned purpose, the main technical solutions adopted by this utility model include:

[0008] An electric hammer with a Y-ring sealing structure, comprising:

[0009] An electric hammer body and an electric hammer body matched with the electric hammer body, a movable cover is provided on the side of the electric hammer body away from the electric hammer body, a retractable and sealed Y-shaped sealing ring is provided between the electric hammer body and the movable cover, and a shock-absorbing handle for shock absorption and impact resistance is provided on the side of the electric hammer body away from the electric hammer body.

[0010] The above-mentioned electric hammer with a Y-ring sealing structure, wherein the side of the Y-ring close to the electric hammer body is fixedly connected to the side of the electric hammer body, and the side of the Y-ring close to the movable sleeve is fixedly connected to the side of the movable sleeve.

[0011] The above-mentioned electric hammer with a Y-ring sealing structure, wherein a drill bit is installed on the side of the movable sleeve, and an impact hammer used in conjunction with the drill bit is installed on the side of the electric hammer body and at a position corresponding to the movable sleeve.

[0012] In the above-mentioned electric hammer with a Y-ring sealing structure, a buffer connecting rod is fixedly connected to the side of the shock-absorbing handle, and a buffer seat is fixedly connected to the side of the buffer connecting rod away from the shock-absorbing handle.

[0013] The above-mentioned electric hammer with a Y-ring sealing structure, wherein a buffer shell is fixedly connected to the side of the electric hammer body, a symmetrically arranged buffer spring is fixedly connected to the inner wall of the buffer shell, and the other end of the buffer spring is fixedly connected to the buffer seat.

[0014] The above-mentioned electric hammer with a Y-ring sealing structure, wherein the movable sleeve is fixedly connected to a positioning slider on the side close to the electric hammer body, and a positioning groove matching the positioning slider is provided on the electric hammer body at a position corresponding to the positioning slider.

[0015] The above-mentioned electric hammer with a Y-ring sealing structure, wherein the top and bottom of the buffer seat are fixedly connected to the limit slider, and a limit sliding groove matching the limit slider is opened on the inner wall of the buffer shell and at the position corresponding to the limit slider.

[0016] The utility model has at least the following beneficial effects:

[0017] The electric hammer with a Y-ring sealing structure provided by the utility model can increase the sealing between the movable sleeve and the electric hammer body while ensuring the reciprocating motion of the movable sleeve by arranging the Y-ring, thereby effectively preventing dust from entering the electric hammer body during operation, thereby ensuring the stable operation of the electric hammer body. At the same time, by arranging the buffer spring, it can play a good shock-absorbing and protective role for the user's arm when the user holds the shock-absorbing handle, thereby avoiding the problem of numbness and fatigue of the user's arm caused by direct transmission of vibration to the arm. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0019] Figure 1 This is a schematic diagram of the structure of an electric hammer with a Y-ring sealing structure according to the present invention;

[0020] Figure 2 This is a structural diagram of a shock-absorbing handle in an electric hammer with a Y-ring sealing structure according to the present invention;

[0021] Figure 3 For this utility model Figure 1 Schematic diagram of the local enlarged structure at A in the middle;

[0022] Figure 4 This is a structural diagram of a movable sleeve in an electric hammer with a Y-ring sealing structure according to the present invention;

[0023] Figure 5 This is a schematic cross-sectional view of the movable sleeve in the electric hammer with a Y-ring sealing structure according to the present invention.

[0024] Description of Figure Numbers:

[0025] 1. Electric hammer body; 2. Electric hammer body; 3. Sleeve; 4. Shock-absorbing handle; 5. Y-shaped sealing ring;

[0026] 301, drill bit; 3011, impact hammer;

[0027] 302, positioning slider; 3021, positioning chute;

[0028] 401, buffer connecting rod; 4011, buffer seat;

[0029] 402, buffer shell; 4021, buffer spring;

[0030] 403, limit slider; 4031, limit slide. DETAILED DESCRIPTION

[0031] The following will describe the implementation methods of the present application in detail with reference to the accompanying drawings and examples, so that the implementation process of how the present application applies technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0032] In the description of the embodiments of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present invention.

[0033] In the description of the embodiments of the present invention, it should be noted that, unless otherwise clearly stipulated and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, an integral connection, or a detachable connection; it can be the internal connection of two components; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0034] Please refer to Figures 1 to 5 As shown, the electric hammer with a Y-ring sealing structure provided in this embodiment includes: an electric hammer body 1 and an electric hammer body 2 matched with the electric hammer body 1, a movable sleeve 3 is provided on the side of the electric hammer body 2 away from the electric hammer body 1, a retractable and sealed Y-shaped sealing ring 5 is provided between the electric hammer body 2 and the movable sleeve 3, and a shock-absorbing handle 4 for shock absorption and impact resistance is provided on the side of the electric hammer body 1 away from the electric hammer body 2;

[0035] Please refer to Figures 1 to 5 As shown, the side of the Y-shaped sealing ring 5 close to the electric hammer body 2 is fixedly connected to the side of the electric hammer body 2, and the side of the Y-shaped sealing ring 5 close to the movable sleeve 3 is fixedly connected to the side of the movable sleeve 3.

[0036] Please refer to Figures 1 to 5 As shown, a drill bit 301 is installed on the side of the movable sleeve 3, and an impact hammer 3011 used in conjunction with the drill bit 301 is installed on the side of the electric hammer body 2 and at a position corresponding to the movable sleeve 3.

[0037] Please refer to Figures 1 to 5 As shown, a buffer connecting rod 401 is fixedly connected to the side of the shock-absorbing handle 4 , and a buffer seat 4011 is fixedly connected to the side of the buffer connecting rod 401 away from the shock-absorbing handle 4 .

[0038] Please refer to Figures 1 to 5 As shown, a buffer shell 402 is fixedly connected to the side of the electric hammer body 1 , a symmetrically arranged buffer spring 4021 is fixedly connected to the inner wall of the buffer shell 402 , and the other end of the buffer spring 4021 is fixedly connected to the buffer seat 4011 .

[0039] Please refer to Figures 1 to 5 As shown, a positioning slide block 302 is fixedly connected to the side of the movable sleeve 3 close to the hammer body 2, and a positioning slot 3021 matching the positioning slide block 302 is provided on the hammer body 2 at a position corresponding to the positioning slide block 302;

[0040] By adopting the above technical solution, the positioning slider 302 and the positioning slot 3021 are provided to limit the movable sleeve 3, thereby increasing the stability of the reciprocating motion of the movable sleeve 3.

[0041] Please refer to Figures 1 to 5 As shown, the top and bottom of the buffer seat 4011 are fixedly connected to the limit slider 403, and a limit sliding groove 4031 matching the limit slider 403 is opened on the inner wall of the buffer shell 402 at a position corresponding to the limit slider 403;

[0042] By adopting the above technical solution, the limiting slider 403 and the limiting slot 4031 are provided to limit the buffer seat 4011, thereby increasing the stability of the buffer seat 4011 in terms of buffering and shock absorption.

[0043] The working principle of the present invention is: not only can the reciprocating motion of the movable sleeve 3 be ensured by setting the Y-shaped sealing ring 5, but the sealing between the movable sleeve 3 and the electric hammer body 2 is increased, thereby effectively preventing dust from entering the electric hammer body 2 during operation, thereby ensuring the stable operation of the electric hammer body 2. At the same time, by setting the buffer spring 4021, when the user holds the shock-absorbing handle 4, it can play a good shock-absorbing and protective role for the user's arm, thereby avoiding the problem of numbness and fatigue of the user's arm caused by direct transmission of vibration to the arm.

[0044] The above description shows and describes several preferred embodiments of the present invention. However, as mentioned above, it should be understood that the present invention is not limited to the form disclosed herein and should not be construed as excluding other embodiments. Instead, the present invention can be used in various other combinations, modifications, and environments and can be modified within the scope of the present invention as taught herein or through the techniques or knowledge in the relevant field. Modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention are intended to be protected by the claims appended hereto.

Claims

1. An electric hammer with a Y-ring sealing structure, comprising an electric hammer body (1) and an electric hammer fuselage (2) matching the electric hammer body (1), characterized in that: A movable sleeve (3) is provided on the side of the electric hammer body (2) away from the electric hammer body (1); a retractable Y-shaped sealing ring (5) is provided between the electric hammer body (2) and the movable sleeve (3); and a shock-absorbing handle (4) for shock absorption and impact resistance is provided on the side of the electric hammer body (1) away from the electric hammer body (2); The side of the shock-absorbing handle (4) is fixedly connected to a buffer connecting rod (401), and the side of the buffer connecting rod (401) away from the shock-absorbing handle (4) is fixedly connected to a buffer seat (4011). The side of the electric hammer body (1) is fixedly connected to a buffer shell (402), and the inner wall of the buffer shell (402) is fixedly connected to a symmetrically arranged buffer spring (4021), and the other end of the buffer spring (4021) is fixedly connected to the buffer seat (4011). The movable sleeve (3) is close to the electric hammer body (1). A positioning slide block (302) is fixedly connected to one side of the hammer body (2); a positioning slide groove (3021) matching the positioning slide block (302) is provided on the electric hammer body (2) at a position corresponding to the positioning slide block (302); the top and bottom of the buffer seat (4011) are fixedly connected to a limiting slide block (403); a limiting slide groove (4031) matching the limiting slide block (403) is provided on the inner wall of the buffer shell (402) at a position corresponding to the limiting slide block (403).

2. The electric hammer with a Y-ring sealing structure according to claim 1, characterized in that: The side of the Y-shaped sealing ring (5) close to the electric hammer body (2) is fixedly connected to the side of the electric hammer body (2), and the side of the Y-shaped sealing ring (5) close to the movable sleeve (3) is fixedly connected to the side of the movable sleeve (3).

3. The electric hammer with a Y-ring sealing structure according to claim 2, characterized in that: A drill bit (301) is installed on the side of the movable sleeve (3), and an impact hammer (3011) used in conjunction with the drill bit (301) is installed on the side of the electric hammer body (2) and at a position corresponding to the movable sleeve (3).

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