Flow guide type electric hammer dustproof device

Abstract

A flow guide type electric hammer dustproof device comprises a fixing base, a flexible pipe and an auxiliary cleaning mechanism, the fixing base is cylindrical and can be detachably connected with a shell on the front portion of an electric hammer, the flexible pipe is fixed to the fixing base, and a drill bit of the electric hammer can be arranged in the flexible pipe in a covering mode; the auxiliary cleaning mechanism comprises a discharging pipe fixedly connected to the exterior of the fixed seat and a rotating ring rotationally connected to the interior of the fixed seat, a rubber ring allowing the drill bit to penetrate through and in interference fit with the drill bit is fixedly arranged on the inner wall of the rotating ring, a connecting rod is arranged outside the rotating ring, and a cleaning brush is arranged at the end, away from the rotating ring, of the connecting rod; the joint of the discharging pipe and the fixing base is located on the movement track of the cleaning brush rotating along with the rotating ring. The electric hammer can continuously discharge ash so as to realize continuous tapping operation of the electric hammer, has lower requirements on corollary equipment, and is beneficial to popularization.

Description

TECHNICAL FIELD

[0001] The utility model relates to engineering drilling construction technical field, specifically is a guide formula electric hammer dustproof device. BACKGROUND

[0002] In the punching operation of tunnel, bridge, building and other capital construction, a large amount of dust is scattered by electric hammer drilling, and the construction environment is dirty and messy due to the difficulty in collecting dust. Especially in the high-altitude operation at the top, if it is not collected and treated in time, not only the working environment is polluted, but also it may affect other operations in actual construction.

[0003] At present, some dust collection devices, generally through the collection of dust generated in the drilling process, the collection cylinder is manually disassembled, poured and reinstalled to the electric hammer for use after the dust is full, which is very inconvenient to operate in construction, and the lime may scatter during disassembly and assembly, causing dust. Part of the dust collection device connects the collection cylinder with the negative pressure mechanism, and the dust is continuously discharged through the negative pressure mechanism to realize the continuous operation of the electric hammer, but it has certain requirements for the matching equipment, which is not convenient for adaptive promotion in construction operation. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a guide formula electric hammer dustproof device, which can not only continuously discharge dust to realize the continuous drilling operation of the electric hammer, but also has low requirements for the matching equipment, which is beneficial to promotion.

[0005] In order to solve the above technical problems, the utility model adopts the specific scheme as follows: a guide formula electric hammer dustproof device, including fixed seat, flexible pipe and auxiliary cleaning mechanism, the fixed seat is cylindrical and can be detachably connected with the shell in front of the electric hammer, the flexible pipe is fixed on the fixed seat and can cover the drill bit of the electric hammer, the auxiliary cleaning mechanism includes a discharge pipe fixedly connected outside the fixed seat and a rotating ring rotatably connected inside the fixed seat, the inner wall of the rotating ring is fixedly provided with a rubber ring which can be penetrated by the drill bit and is in interference fit with the drill bit, a connecting rod is arranged outside the rotating ring, and a cleaning brush is arranged at the end of the connecting rod away from the rotating ring, and the connecting part of the discharge pipe and the fixed seat is located on the movement track of the cleaning brush rotating with the rotating ring.

[0006] Preferably, the discharge pipe is tangent to the fixed seat.

[0007] Preferably, the fixed seat includes a straight cylinder segment for fixing with the shell in front of the electric hammer, and an outer cone segment and an inner cone segment fixed on the straight cylinder segment, and the outer cone segment and the inner cone segment jointly form a V-shaped accommodating cavity.

[0008] Preferably, the flexible pipe and the discharge pipe are arranged on the outer cone segment, and the rotating ring is in rotating fit with the inner cone segment.

[0009] Preferably, the straight section is provided with an elastic ring that engages with the housing at the front of the electric hammer.

[0010] Preferably, the inner wall of the rotating ring has slots distributed longitudinally, and the outer wall of the rubber ring has a plug that engages with the slots.

[0011] Preferably, the flexible tube is a corrugated tube, and the end of the flexible tube is connected to the fixed seat through a first hoop.

[0012] Preferably, the discharge pipe is connected to an extension pipe via a second hoop.

[0013] This invention comprises a fixed base, a flexible tube, and an auxiliary cleaning mechanism. The flexible tube guides the dust generated during hammer drilling into the fixed base and deforms under pressure during the drilling process, ensuring the drilled area remains sealed and reducing dust contamination. The auxiliary cleaning mechanism includes a cleaning brush that rotates synchronously with the hammer drill bit, brushing the dust from the fixed base into the discharge pipe for discharge, thus achieving continuous dust removal and maintaining continuous hammer drilling operations. Furthermore, no additional negative pressure mechanism is required during the process, resulting in a simple structure, convenient operation, and ease of widespread adoption. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a schematic diagram showing the installation of the rubber ring and the swivel in this utility model.

[0016] The markings in the diagram are as follows: 1. Auxiliary cleaning mechanism; 101. Rubber ring; 102. Rotary ring; 103. Bearing; 104. Discharge pipe; 105. Second hoop ring; 106. Extension pipe; 107. Connecting rod; 108. Cleaning brush; 109. Slot; 110. Insert block; 2. Discharge hole; 3. Electric hammer body; 4. Elastic ring; 5. Fixed base; 501. Straight section; 502. Inner conical section; 503. Outer conical section; 6. First hoop ring; 7. Flexible pipe; 8. Drill bit. Detailed Implementation

[0017] like Figure 1 As shown, this utility model discloses a dust-proof device for a flow-guiding electric hammer, mainly comprising a fixed base 5, a flexible tube 7, and an auxiliary cleaning mechanism 1. The fixed base 5 connects to the front housing of the electric hammer body 3 where the drill bit 8 is mounted, and can accommodate the dust generated during the electric hammer's drilling process. The flexible tube 7 guides the dust into the fixed base 5 to prevent dust from scattering and causing pollution. The auxiliary cleaning mechanism 1 continuously discharges the dust from the fixed base 5 to enable continuous drilling operations with the electric hammer. Specifically:

[0018] The fixed seat 5 comprises a straight cylinder segment 501, an outer cone segment 503 and an inner cone segment 502 fixed above the straight cylinder segment 501. The lower end of the straight cylinder segment 501 is fixed with an elastic ring 4, the inner ring profile of which corresponds to the outer profile of the front housing position of the electric hammer body 3 provided with the drill bit 8 and is slightly smaller in size and specification, so as to be fixed on the electric hammer body 3 by interference fit of the elastic ring 4 and the electric hammer body 3. The outer cone segment 503 and the inner cone segment 502 are sequentially arranged at the upper end of the straight cylinder segment 501 in the direction from outside to inside, and the accommodation cavity with V-shaped cross section and continuous annular shape is formed by the inner side of the outer cone segment 503 and the outer side of the inner cone segment 502, for temporary storage of dust.

[0019] The flexible pipe 7 is a bellows, and the lower end is fixed on the top of the outer cone segment 503 by the first hoop ring 6, which can stretch and contract in the longitudinal direction under the action of external force. The initial length of the flexible pipe 7 exceeds the upper end of the drill bit 8, and in the hole opening operation, the top of the flexible pipe 7 is matched with the wall surface to be opened, and in the hole opening process of the person holding the electric hammer body 3 upward, the flexible pipe 7 deforms due to the pressure on the upper end, so as to always seal the hole opening position, avoiding the pollution caused by the scattering of dust.

[0020] The auxiliary cleaning mechanism 1 mainly comprises a discharge pipe 104 and a rotating ring 102. The rotating ring 102 is rotatably connected to the upper end of the inner cone segment 502 by a bearing 103, and a rubber ring 101 is fixed on the inner wall of the rotating ring 102, the inner diameter of which is slightly smaller than the outer diameter of the drill bit 8, so that the rubber ring 101 and the drill bit 8 can be driven synchronously by interference fit, and the rotating ring 102 can be driven to rotate synchronously by the drill bit 8. A plurality of connecting rods 107 are fixed on the outer wall of the rotating ring 102, the outer ends of which are inclined downward into the accommodation cavity and fixed with cleaning brushes 108, which are used to sweep the dust in the accommodation cavity into the discharge hole 2 provided on the outer cone segment 503 during the rotation of the rotating ring 102. One end of the discharge pipe 104 is connected with the discharge hole 2, and the other end is connected with an extension pipe 106 through a second hoop ring 105, and the lower end of the extension pipe 106 is used to connect a larger volume collecting cylinder to collect the continuously discharged dust.

[0021] In this embodiment, the discharge pipe 104 is distributed along the direction tangent to the outer cone segment 503, so as to further facilitate the cleaning brushes 108 to brush the dust out of the accommodation cavity through the discharge pipe 104. In addition, in order to adapt to different outer diameter hole opening drill bits 8, a plurality of rubber rings 101 with different inner diameters are provided in this embodiment, and the torque of the drill bit 8 is transmitted to the rotating ring 102 for rotation by using the rubber rings 101 with different inner diameters. Figure 2As shown, three insertion slots 109 are formed on the inner wall of the rotating ring 102 and longitudinally extend through the rotating ring 102. Each rubber ring 101 is provided with a corresponding insertion block 110 on the outer periphery thereof. The insertion slots 109 and the insertion blocks 110 are matched with each other, so that the rubber ring 101 can be quickly replaced.

Claims

1. A dust prevention device for a flow-guided electric hammer, characterized by: The utility model relates to an auxiliary cleaning mechanism (1) for electric hammer, which comprises a fixed seat (5), a flexible pipe (7) and the auxiliary cleaning mechanism (1), the fixed seat (5) is cylindrical and can be detachably connected with the shell of the front part of the electric hammer, the flexible pipe (7) is fixed on the fixed seat (5) and covers the drill bit (8) of the electric hammer in, the auxiliary cleaning mechanism (1) comprises a discharge pipe (104) fixedly connected outside the fixed seat (5) and a rotating ring (102) rotatably connected inside the fixed seat (5), the rotating ring (102) is fixed with a rubber ring (101) on the inner wall, the rubber ring (101) can be passed through the drill bit (8) and is in interference fit with the drill bit (8), the rotating ring (102) is provided with a connecting rod (107) outside, the connecting rod (107) is provided with a cleaning brush (108) at the end away from the rotating ring (102), and the connecting place of the discharge pipe (104) and the fixed seat (5) is located on the movement track of the cleaning brush (108) rotating with the rotating ring (102).

2. The dust prevention device of the flow-guided electric hammer according to claim 1, characterized in that: The discharge pipe (104) is tangent to the fixed seat (5).

3. The dust prevention device of the flow-guided electric hammer according to claim 1, characterized in that: The fixed seat (5) comprises a straight cylinder segment (501) for fixing with the shell of the front part of the electric hammer, an outer cone segment (503) and an inner cone segment (502) fixed on the straight cylinder segment (501), and the outer cone segment (503) and the inner cone segment (502) jointly form a V-shaped containing cavity.

4. The dust prevention device of the flow-guided electric hammer according to claim 3, characterized in that: The flexible pipe (7) and the discharge pipe (104) are arranged on the outer cone segment (503), and the rotating ring (102) is in rotating fit with the inner cone segment (502).

5. The dust prevention device of the flow-guided electric hammer according to claim 3, characterized in that: The straight cylinder segment (501) is provided with an elastic ring (4) in clamping fit with the shell of the front part of the electric hammer.

6. The dust prevention device of the flow-guided electric hammer according to claim 1, characterized in that: The inner wall of the rotating ring (102) is provided with an insertion slot (109) distributed along the longitudinal direction, and the outer wall of the rubber ring (101) is provided with an insertion block (110) in insertion fit with the insertion slot (109).

7. The dust prevention device of the flow-guided electric hammer according to claim 1, characterized in that: The flexible pipe (7) is a corrugated pipe, and the end of the flexible pipe (7) is connected with the fixed seat (5) through a first hoop (6).

8. The dust prevention device of the flow-guided electric hammer according to claim 1, characterized in that: The discharge pipe (104) is connected with an extension pipe (106) through a second hoop (105).

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