Auxiliary dismantling device for municipal pipeline replacement

Abstract

The utility model discloses an auxiliary dismantling device for municipal pipeline replacement, which relates to the technical field of pipeline dismantling devices, and comprises an air pick assembly consisting of an air pick main body and a pick head, and a dustproof intercepting assembly, the dustproof interception assembly comprises an interception unit, a telescopic guide unit and a dust falling unit; the intercepting unit is used for intercepting stone particles splashing upwards; the telescopic guiding unit is used for providing guiding and resetting force for stretching and retracting of the intercepting unit. And the dust falling unit is used for performing spraying and dust falling on dust generated by crushing. By arranging the dustproof intercepting assembly, stone particles splashing upwards can be intercepted through the conical corrugated cover, so that the stone particles are prevented from splashing upwards to the face of an operator and hurting the face of the operator, meanwhile, water mist is sprayed out through a plurality of spray heads to annularly cover a crushing area, dust generated by crushing can be intercepted, and the crushing efficiency is improved. And the dust is prevented from scattering to influence the breathing health of operators.

Description

Technical Field

[0001] This utility model relates to the technical field of pipeline dismantling devices, specifically an auxiliary dismantling device for municipal pipeline replacement. Background Technology

[0002] Municipal pipelines typically include different types of pipelines such as water supply, drainage, gas, electricity, and communications. When renovating or replacing municipal pipelines, different equipment and tools are required for each type of pipeline during dismantling. For example, when dismantling rigid concrete pipelines, an excavator is generally used to dig and cover the soil, and a breaker hammer or hydraulic shears is used to break the concrete pipeline.

[0003] During this process, some localized crushing operations involving concrete or brick manholes will be assisted by hand-held pneumatic picks. A pneumatic pick is a portable crushing tool driven by compressed air, and its structure is as follows:

[0004] Cylinder: The core component, where the internal piston reciprocates with compressed air to generate impact force; Chisel (Hithead): A replaceable metal rod at the front end that directly contacts the target being broken (mostly made of alloy steel); Air System: Includes intake and exhaust valves, controlling the intake and exhaust of compressed air; Handle and Switch: The operator controls the air valve switch via the handle to adjust the impact frequency;

[0005] Compressed air (typically at a pressure of **0.4~0.6 MPa**) is introduced into the cylinder of the pneumatic pick through a hose, driving the piston to reciprocate at high speed. The piston strikes the tail of the chisel, transferring kinetic energy to the pick head and generating a high-frequency impact force (up to **1000~3000 times per minute**), achieving the crushing effect.

[0006] When dismantling municipal pipelines, the following problems exist when personnel use hand-held pneumatic picks for breaking operations:

[0007] When a pneumatic hammer impacts concrete, small concrete particles fly out, which can easily injure operators. The dust generated from the breakage also affects the respiratory health of operators. Therefore, this paper provides an auxiliary demolition device for replacing municipal pipelines. Utility Model Content

[0008] The purpose of this utility model is to provide an auxiliary dismantling device for replacing municipal pipelines in order to solve the problems mentioned above.

[0009] To achieve the above objectives, this utility model provides the following technical solution: an auxiliary demolition device for replacing municipal pipelines, comprising a pneumatic pick assembly consisting of a pneumatic pick body and a pick head, wherein the pick head is installed at the front end of the output end of the pneumatic pick body, and a dust interception assembly is provided on the outside of the pneumatic pick body and the pick head, wherein the dust interception assembly is used to intercept upward-splashing stone particles and scattered dust.

[0010] The dust interception assembly includes an interception unit, a telescopic guide unit, and a dust suppression unit;

[0011] The interception unit is used to intercept upward-splashing stone particles;

[0012] The telescopic guide unit is used to provide guidance and restoring force for the extension and retraction of the interception unit;

[0013] The dust suppression unit is used to spray and suppress the dust generated during crushing.

[0014] As a further embodiment of this utility model: the interception unit includes a fixed cylinder, a conical corrugated cover, an L-shaped bottom ring seat, and bolts;

[0015] The fixing sleeve is fitted onto the outer bottom of the pneumatic drill body, and the bolt is threaded onto the fixing sleeve and passes through the fixing sleeve to fit tightly against the outer wall of the pneumatic drill body, so as to realize the installation and fixing of the fixing sleeve and the pneumatic drill body.

[0016] The conical corrugated cover is fixed to the outside of the fixed cylinder and extends to the outside of the pick head location; the L-shaped bottom ring seat is fixed to the bottom of the conical corrugated cover.

[0017] A conical corrugated shield is used to intercept upward-splashing stone particles.

[0018] As a further embodiment of this utility model: the telescopic guide unit includes a support rod, a movable ring seat, and a spring;

[0019] The support rods are provided in multiple ways, and the multiple support rods are arranged in a ring and fixed to the bottom of the L-shaped bottom ring seat. The movable ring seat is fixed to the bottom of the multiple support rods and slidably sleeved on the outside of the pick.

[0020] The spring is distributed between the top of the movable ring seat and the bottom of the jackhammer body and is sleeved on the outside of the jackhammer head. The spring is used to provide downward thrust to the movable ring seat.

[0021] As a further embodiment of this utility model: the dust suppression unit includes an annular pipe, a nozzle, and a connecting pipe head;

[0022] The annular tube is distributed on the top inner side of the L-shaped bottom ring seat, the nozzle is fixed on the outside of the annular tube and communicates with the inner cavity of the annular tube, and the nozzle penetrates the vertical part of the L-shaped bottom ring seat to the outside of the L-shaped bottom ring seat.

[0023] The connecting pipe head is fixed to the top of the annular pipe and communicates with the inner cavity of the annular pipe;

[0024] The pipeline, consisting of a connecting pipe head, a ring pipe, and a nozzle, is used for spray dust suppression.

[0025] As a further improvement of this utility model: multiple nozzles are evenly arranged along the circumference, and the nozzles are tilted downwards.

[0026] As a further improvement of this utility model: the support rod is tilted downwards, and the retractable length of the conical corrugated cover is greater than the retractable length of the spring.

[0027] Compared with the prior art, the beneficial effects of this utility model are:

[0028] By setting up dust interception components, the conical corrugated hood can intercept upward-splashing stone particles, thus preventing them from flying upwards and hitting the operator's face and causing injury. At the same time, multiple nozzles spray water mist to create a ring-shaped enclosure of the crushing area, which can intercept the dust generated during crushing and prevent the dust from spreading and affecting the operator's respiratory health. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the structure of this utility model;

[0030] Figure 2 This is a bottom view of the structure of this utility model;

[0031] Figure 3 This is a schematic diagram showing the disassembled dust interception component and the jackhammer component of this utility model.

[0032] In the diagram: 1. Pneumatic pick assembly; 101. Pneumatic pick body; 102. Pick head; 2. Dustproof interception assembly; 201. Fixing cylinder; 202. Conical corrugated cover; 203. L-shaped bottom ring seat; 204. Support rod; 205. Moving ring seat; 206. Spring; 207. Bolt; 208. Ring pipe; 209. Nozzle; 210. Connecting pipe head. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0034] Please see Figures 1-3In this embodiment of the utility model, an auxiliary demolition device for replacing municipal pipelines includes a pneumatic pick assembly 1 consisting of a pneumatic pick body 101 and a pick head 102. The pick head 102 is installed at the front end of the output end of the pneumatic pick body 101. A dust interception assembly 2 is provided on the outside of the pneumatic pick body 101 and the pick head 102. The dust interception assembly 2 is used to intercept upward flying stone particles and scattered dust.

[0035] The dust interception assembly 2 includes an interception unit, a telescopic guide unit, and a dust suppression unit. The interception unit is used to intercept upward-splashing stone particles, the telescopic guide unit is used to provide guidance and restoring force for the extension and retraction of the interception unit, and the dust suppression unit is used to spray and suppress the dust generated by crushing.

[0036] The interception unit includes a fixed cylinder 201, a conical corrugated cover 202, an L-shaped bottom ring seat 203, and bolts 207;

[0037] The fixing cylinder 201 is sleeved on the outer side of the bottom of the pneumatic drill body 101. The bolt 207 is threaded to the fixing cylinder 201 and passes through the fixing cylinder 201 to fit tightly against the outer wall of the pneumatic drill body 101, so as to realize the installation and fixation of the fixing cylinder 201 and the pneumatic drill body 101.

[0038] The conical corrugated cover 202 is fixed to the outside of the fixed cylinder 201 and extends to the outside of the location of the pick 102; the L-shaped bottom ring seat 203 is fixed to the bottom of the conical corrugated cover 202.

[0039] The conical corrugated shield 202 is used to intercept upward-splashing stone particles;

[0040] The telescopic guide unit includes a support rod 204, a movable ring seat 205, and a spring 206;

[0041] Multiple support rods 204 are provided, and the multiple support rods 204 are arranged in a ring and fixed to the bottom of the L-shaped bottom ring seat 203. The movable ring seat 205 is fixed to the bottom of the multiple support rods 204 and slidably sleeved on the outside of the pick 102.

[0042] Spring 206 is distributed between the top of the movable ring seat 205 and the bottom of the jackhammer body 101 and is sleeved on the outside of the jackhammer head 102. Spring 206 is used to provide downward thrust for the movable ring seat 205.

[0043] The dust suppression unit includes an annular pipe 208, a nozzle 209, and a connecting pipe head 210;

[0044] The annular tube 208 is distributed on the top inner side of the L-shaped bottom ring seat 203. The nozzle 209 is fixed on the outside of the annular tube 208 and communicates with the inner cavity of the annular tube 208. The nozzle 209 penetrates the vertical part of the L-shaped bottom ring seat 203 to the outside of the L-shaped bottom ring seat 203.

[0045] The connecting pipe head 210 is fixed to the top of the annular pipe 208 and is in communication with the inner cavity of the annular pipe 208;

[0046] The pipeline consisting of connecting pipe head 210, annular pipe 208, and nozzle 209 is used for dust suppression spraying. Multiple nozzles 209 are evenly arranged along the circumference and are tilted downwards.

[0047] In this embodiment: When this pneumatic pick assembly 1 is in use, compressed air enters the cylinder inside the pneumatic pick body 101 through a hose, which drives the piston to reciprocate at high speed. The piston strikes the tail of the chisel, transferring kinetic energy to the pick head 102, generating a high-frequency impact force to achieve the breaking effect. Its operating principle and structure are exactly the same as the common pneumatic pick structure on the market. Therefore, its internal structure will not be described in detail here.

[0048] When the handheld pneumatic pick assembly 1 is used for pipe demolition and breaking, the pick head 102 breaks the concrete and produces flying stone particles. At this time, the conical corrugated cover 202 can intercept the upward flying stone particles, thereby preventing the stone particles from flying upward and hitting the operator's face and causing injury (it should be noted that when horizontal or inclined flying stone particles come into contact with the operator, the operator's clothing will intercept the stone particles and will not cause injury to the operator).

[0049] Meanwhile, the connecting pipe 210 can be connected to an external water pump via a hose. The water pump input is connected to a water tank. The water pump delivers water from the water tank to the annular pipe 208 and sprays it out through multiple nozzles 209 to achieve an annular coverage of the crushing area. In this way, the dust generated by crushing can be intercepted, preventing the dust from spreading and affecting the respiratory health of the operators.

[0050] Please refer to this carefully. Figures 1-3 The support rod 204 is tilted downwards, and the retractable length of the conical corrugated cover 202 is greater than the retractable length of the spring 206.

[0051] In this embodiment: This structure allows the horizontal height of the movable ring seat 205 to be lower than the bottom horizontal height of the L-shaped bottom ring seat 203. When the pick 102 is inserted into the concrete to a greater depth, the movable ring seat 205 first contacts the concrete. Then, the movable ring seat 205 will be forced to move upward and compress the spring 206 to contract. At this time, the L-shaped bottom ring seat 203 moves upward synchronously and the conical corrugated cover 202 contracts. This can effectively prevent the L-shaped bottom ring seat 203 from contacting and colliding with the concrete and causing deformation.

[0052] In addition, when the spring 206 is fully retracted, the pick 102 is inserted to the deepest position and cannot move further down, while the conical corrugated cover 202 is in a partially retracted state. When the spring 206 is fully extended, the conical corrugated cover 202 is in a partially extended state, thereby avoiding excessive impact or stretching of the conical corrugated cover 202, which could cause stress fatigue damage and effectively improve the service life of the conical corrugated cover 202.

[0053] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An auxiliary demolition device for replacing municipal pipelines, comprising a pneumatic drill assembly (1) consisting of a pneumatic drill body (101) and a drill head (102), wherein the drill head (102) is installed at the front end of the output end of the pneumatic drill body (101), characterized in that, The outer side of the pneumatic pick body (101) and pick head (102) is provided with a dust interception component (2), which is used to intercept the upward flying stone particles and scattered dust. The dust interception component (2) includes an interception unit, a telescopic guide unit, and a dust suppression unit; The interception unit is used to intercept upward-splashing stone particles; The telescopic guide unit is used to provide guidance and restoring force for the extension and retraction of the interception unit; The dust suppression unit is used to spray and suppress the dust generated during crushing.

2. The auxiliary dismantling device for municipal pipeline replacement according to claim 1, characterized in that, The interception unit includes a fixed cylinder (201), a conical corrugated cover (202), an L-shaped bottom ring seat (203), and bolts (207); The fixing cylinder (201) is sleeved on the outer bottom of the jackhammer body (101), and the bolt (207) is threaded to the fixing cylinder (201) and passes through the fixing cylinder (201) to fit tightly against the outer wall of the jackhammer body (101), so as to realize the installation and fixing of the fixing cylinder (201) and the jackhammer body (101); The conical corrugated cover (202) is fixed to the outside of the fixed cylinder (201) and extends to the outside of the location of the pick (102); the L-shaped bottom ring seat (203) is fixed to the bottom of the conical corrugated cover (202); A conical corrugated shield (202) is used to intercept upward-splashing stone particles.

3. The auxiliary dismantling device for municipal pipeline replacement according to claim 2, characterized in that, The telescopic guide unit includes a support rod (204), a movable ring seat (205), and a spring (206). The support rod (204) is provided in multiple ways. The multiple support rods (204) are arranged in a ring and fixed to the bottom of the L-shaped bottom ring seat (203). The movable ring seat (205) is fixed to the bottom of the multiple support rods (204) and slidably sleeved on the outside of the pick (102). The spring (206) is distributed between the top of the movable ring seat (205) and the bottom of the jackhammer body (101) and is sleeved on the outside of the jackhammer head (102). The spring (206) is used to provide downward thrust to the movable ring seat (205).

4. The auxiliary dismantling device for municipal pipeline replacement according to claim 2, characterized in that, The dust suppression unit includes an annular pipe (208), a nozzle (209), and a connecting pipe head (210). The annular tube (208) is distributed on the top inner side of the L-shaped bottom ring seat (203), the nozzle (209) is fixed on the outside of the annular tube (208) and communicates with the inner cavity of the annular tube (208), and the nozzle (209) penetrates the vertical part of the L-shaped bottom ring seat (203) to the outside of the L-shaped bottom ring seat (203); The connecting pipe head (210) is fixed to the top of the annular pipe (208) and communicates with the inner cavity of the annular pipe (208); The pipeline consisting of the connecting pipe head (210), the ring pipe (208), and the nozzle (209) is used for spray dust suppression operations.

5. The auxiliary dismantling device for municipal pipeline replacement according to claim 4, characterized in that, The nozzles (209) are evenly arranged in a circumferential direction, and the nozzles (209) are tilted downwards.

6. The auxiliary dismantling device for municipal pipeline replacement according to claim 3, characterized in that, The support rod (204) is tilted downwards, and the retractable length of the conical corrugated cover (202) is greater than the retractable length of the spring (206).

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