Cement concrete pavement crusher

Abstract

The utility model discloses a cement concrete pavement crusher, which belongs to the technical field of road engineering and comprises a fixing rod and an organ cover, a handheld handle is arranged at the upper end of the fixing rod, crushing steel chisels are arranged at the lower end of the fixing rod, the upper end of the organ cover is fixedly connected to the periphery of the lower end of the fixing rod, and a visual protective cover is fixedly connected to the lower end of the organ cover. The breaking steel chisel is conical, the upper end and the lower end of the breaking steel chisel are open, the small-diameter open end of the breaking steel chisel is connected to the organ cover, the breaking steel chisel is located in the organ cover and the visual protective cover, the visual protective cover comprises two layers of cover bodies, namely an outer cover body and an inner cover body, a window is formed in the side face of the visual protective cover, the outer side layer of the window is a transparent plate, and the inner side layer of the window is a protective net. A comb plate set is arranged on the periphery of the large-diameter opening end of the visual protective cover and comprises an apron board and a plurality of comb plate structures. The working condition of the crushing steel chisel in the protective cover can be observed, the crushing steel chisel protective cover can adapt to vertical shaking and guarantee large-angle inclined use, meanwhile, the crushing steel chisel protective cover can adapt to different terrains, and practicability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of road engineering, in particular to a cement concrete pavement crusher. Background Art

[0002] In my country, municipal facilities refer to various buildings, structures, equipment, etc. that are set up within the planning and construction scope of urban areas, towns (villages), and provide paid or free public products and services to residents based on government responsibilities and obligations. The construction of various public infrastructure supporting urban life belongs to the category of municipal engineering, such as common urban roads, bridges, subways, and various pipelines closely related to life: rainwater, sewage, water supply, recycled water, electricity (parts outside the red line), telecommunications, heat, gas, etc., as well as the construction of squares and urban greening, all belong to the category of municipal engineering, and the most common of them is the maintenance and construction of roads. When repairing roads, it is often necessary to break the road surface, and the road surface is mostly broken by a road crusher. The existing road crusher uses an impact hydraulic cylinder to push the crushing rod to impact the road surface, thereby breaking the road surface, but the existing concrete crusher is very noisy, and the large working range is easy to shake off stone chips, which will hurt the staff and indirectly affect the work efficiency.

[0003] The document with prior art publication number CN209194308U provides a high-frequency crusher for cement concrete pavement. The device is provided with a fixed sleeve with a fixing hole on a fixed rod, and the fixed sleeve is sleeved on the fixed rod through the fixing hole; a support ring is provided on the fixed sleeve, and the support ring is sleeved on the fixed sleeve, and an umbrella-shaped protective cover is fixed on the support ring; the fixed sleeve can effectively fix the protective cover on the crusher, and the support ring can better fix the protective cover on the fixed sleeve, and the protective cover can prevent stone chips from flying and causing harm to the operator during the concrete pavement crushing process.

[0004] In view of the above-mentioned related technologies, the inventor believes that the rotational connection between the spherical portion and the support ring, the rotation angle of the support ring is easily limited by the size of the spherical portion. When dust is stuck between the support ring and the spherical portion, it is easy to cause the support ring and the spherical portion to rotate poorly. The protective cover blocks the user's view of the working area of ​​the crushing steel bar, making it inconvenient for the user to move the crushing steel bar to the crushing area, and it is impossible to observe the crushing state in the protective cover. In the rear area of ​​the crushed road surface, the stones are uneven, and the protective cover with a flat bottom has poor adaptability to the stones, resulting in a large gap at the bottom after the raised stones prop up the protective cover. In view of this, it is necessary to improve the existing cement concrete pavement crusher to solve the above problems. Summary of the invention

[0005] In order to solve the above problems existing in the prior art, the utility model provides a novel cement concrete pavement crusher.

[0006] The utility model is realized through the following technical scheme: a cement concrete pavement crusher comprises a fixed rod and an accordion cover, the upper end of the fixed rod is connected with a hand-held handle, the lower end is fixedly connected with a coaxial crushing steel drill, the upper end of the accordion cover is fixedly connected to the outer periphery of the lower end of the fixed rod, the lower end of the accordion cover is fixedly connected with a visual protective cover, the shape of the visual protective cover is conical, and the upper and lower ends are both open, the small diameter opening end of the visual protective cover is connected to the accordion cover, the crushing steel drill is located inside the accordion cover and the visual protective cover, the visual protective cover is a two-layer cover body, which is an outer cover body and an inner cover body located inside the outer cover body, a window is opened on the side of the visual protective cover, the outer layer of the window is a transparent plate, and the inner layer is a protective net, the transparent plate is fixedly embedded in the outer cover body, and the protective net is fixedly installed on the inner cover body; a comb plate group is provided on the outer periphery of the large diameter opening end of the visual protective cover, and the comb plate group includes a skirt plate and a plurality of comb plate structures.

[0007] The utility model designs a cement concrete pavement crusher, comprising a fixed rod and an accordion cover, wherein the upper end of the fixed rod is connected with a hand-held handle, and the lower end is fixedly connected with a coaxial crushing steel chisel, the upper end of the accordion cover is fixedly connected to the outer periphery of the lower end of the fixed rod, and the lower end of the accordion cover is fixedly connected to a visual protective cover, the shape of the visual protective cover is conical, and both the upper and lower ends are open, the small diameter opening end of the visual protective cover is connected to the accordion cover, the crushing steel chisel is located inside the accordion cover and the visual protective cover, the visual protective cover is a two-layer cover body, namely an outer cover body and an inner cover body located inside the outer cover body, a viewing window is opened on the side of the visual protective cover, an outer layer of the window is a transparent plate, and an inner layer is a protective net, the transparent plate is fixedly embedded in the outer cover body, and the protective net is fixedly installed on the inner cover body; a comb plate group is provided at the outer periphery of the large diameter opening end of the visual protective cover, and the comb plate group includes a skirt plate and a plurality of comb plate structures. In this structure, the crushing steel chisel is covered by a visible protective cover. When the crushing steel chisel is working, the visible protective cover blocks the crushed stones and dust particles in the crushing process. At the same time, the crushing situation of the crushing steel chisel on the concrete can be observed through the visible protective cover, so that the mobile crushing steel chisel can be accurately placed in the next area that needs to be crushed. At the same time, an accordion cover is fixedly installed on the fixed rod, and the lower end of the accordion cover is fixed to the upper end of the visible protective cover. Through the up and down extension and retraction of the accordion cover, when the fixed rod and the crushing steel chisel move up and down, the accordion cover can be stretched or compressed to ensure that the visible protective cover is always in contact with the concrete floor. At the same time, a ring-shaped comb plate group is arranged at the lower end of the visual protective cover, and the comb plate group is slidably connected to the visual protective cover, so that the comb plate group can be adapted to different terrains and ensure comprehensive protection against the crushed stones generated when the crushing steel chisel is working. The viewing window, the colored pen transparent plate and the protective net are arranged, the viewing window is located on the side close to the hand-held handle of the staff, and the transparent plate is fixed on the outer viewing window to observe the internal working conditions, and the protective net is fixed on the inner viewing window to prevent the broken stones from jumping onto the transparent plate and causing damage, and the material of the protective net can meet the visual effect. When the utility model is in use, the staff holds the hand-held handle to make the fixed rod and the crushing steel chisel move up and down to crush the cement concrete pavement, the accordion cover stretches or compresses, and the staff can observe the crushing conditions inside through the viewing window; the combing plate group can be used in different terrains, and can ensure comprehensive protection against the broken stones generated when the crushing steel chisel is working.

[0008] Preferably, the skirt plate is in the shape of a ring, and a plurality of concentric arc-shaped strip holes are evenly and densely opened on the ring body of the skirt plate, and a comb plate structure is vertically slidably connected in each strip hole, and the comb plate structure includes a baffle and two limit plates, and the two limit plates are parallel and vertically fixed at both ends of the baffle; the width of the baffle matches the length of the strip hole, and the baffle is slidably inserted into the strip hole, and the two limit plates are respectively located on the upper and lower sides of the skirt plate, and the length and width of the limit plate are both larger than the size of the strip hole to meet the limit function. Furthermore, adjacent limit plates do not interfere with each other. A skirt is coaxially fixedly installed at the lower end of the visual protective cover, and a plurality of baffles that can slide up and down are arranged on the annular part of the skirt. The denser the number of baffles, the better the gaps between adjacent baffles, and the better the protective effect on the bottom of the visual protective cover. When the baffle acts on the protruding stones, it can adapt to the local shape of the stones, so that the gap area of ​​the stones can be blocked by the baffles that are not against the stones, thereby improving the effective protection of the bottom of the visual protective cover on uneven ground. The baffle is slidably inserted into the strip hole, and a limit plate larger than the inner diameter of the strip hole is fixedly installed at the upper and lower ends of the baffle to prevent the baffle from falling off from the limit hole.

[0009] Furthermore, the outer cover is made of aluminum alloy, the inner cover is made of rubber, and the transparent plate is made of transparent acrylic plate. Aluminum alloy has the characteristics of light weight and high strength; the inner cover is made of rubber, which can reduce the noise generated by the impact of gravel on the inner cover and play a buffering role when the gravel hits.

[0010] Compared with the prior art, the utility model has the following beneficial effects: The utility model provides a cement concrete pavement crusher: ① The crushing steel chisel is covered by a visual protective cover. When the crushing steel chisel is working, the visual protective cover blocks the crushed stones and dust particles in the crushing process. At the same time, the crushing situation of the crushing steel chisel on the concrete can be observed through the visual protective cover, so that the mobile crushing steel chisel can be accurately placed in the next area that needs to be crushed; ② The accordion cover is fixedly installed on the fixed rod, and the lower end of the accordion cover is fixed to the upper end of the visual protective cover. Through the up and down extension of the accordion cover, when the fixed rod and the crushing steel chisel move up and down, the accordion cover can be stretched or compressed to ensure that the visual protective cover is always in contact with the concrete ground; ③ A ring-shaped comb plate group is arranged at the lower end of the visual protective cover, and the comb plate group is slidably connected to the visual protective cover, so that the comb plate group can be adapted to different terrains and ensure comprehensive protection against the crushed stones generated when the crushing steel chisel is working. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the overall structure of a specific embodiment of the utility model.

[0012] Figure 2It is a schematic diagram of the overall structure of another embodiment of the utility model from another angle.

[0013] Figure 3 It is a schematic structural diagram of a visible protective cover, an accordion cover and a comb plate group in a specific embodiment of the utility model.

[0014] Figure 4 It is a structural exploded view of the visible protective cover in a specific embodiment of the utility model.

[0015] Figure 5 It is a structural schematic diagram of the comb plate structure in a specific embodiment of the utility model.

[0016] The markings in the figure are as follows: 1-fixed rod, 2-breaking steel chisel, 3-bellows cover, 4-visible protective cover, 401-outer cover, 402-inner cover, 4021-window, 403-protective net, 404-transparent plate, 5-comb plate group, 501-skirt plate, 5011-strip hole, 502-baffle, 503-limiting plate, 6-handle. DETAILED DESCRIPTION

[0017] The specific embodiments of the present utility model are described below in conjunction with the accompanying drawings.

[0018] A cement concrete pavement crusher, such as Figures 1 to 4 As shown: it includes a fixed rod 1 and an accordion cover 3, the upper end of the fixed rod 1 is connected to a handheld handle 6, and the lower end is fixedly connected to a coaxial crushing steel drill 2, the upper end of the accordion cover 3 is fixedly connected to the outer periphery of the lower end of the fixed rod 1, and the lower end of the accordion cover 3 is fixedly connected to a visual protective cover 4, the shape of the visual protective cover 4 is conical, and the upper and lower ends are both open, the small diameter opening end of the visual protective cover 4 is connected to the accordion cover 3, the crushing steel drill 2 is located inside the accordion cover 3 and the visual protective cover 4, and the visual protective cover 4 is connected to the accordion cover 3. The protective cover 4 is a two-layer cover body, which is an outer cover body 401 and an inner cover body 402 located inside the outer cover body 401. A window 4021 is opened on the side of the visible protective cover 4. The outer layer of the window 4021 is a transparent plate 404, and the inner layer is a protective net 403. The transparent plate 404 is fixedly embedded in the outer cover body 401, and the protective net 403 is fixedly installed on the inner cover body 402. A comb plate group 5 is provided on the outer periphery of the large-diameter opening end of the visible protective cover 4, and the comb plate group 5 includes a skirt plate 501 and a plurality of comb plate structures.

[0019] This embodiment adopts the following preferred solution: Figure 3 , Figure 4 , Figure 5As shown, the skirt plate 501 is in the shape of a ring, and a plurality of concentric arc-shaped strip holes 5011 are evenly and densely opened on the ring body of the skirt plate 501, and a comb plate structure is vertically slidably connected in each strip hole 5011, and the comb plate structure includes a baffle 502 and two limit plates 503, and the two limit plates 503 are parallel and vertically fixed at both ends of the baffle 502; the width of the baffle 502 matches the length of the strip hole 5011, and the baffle 502 is slidably inserted into the strip hole 5011, and the two limit plates 503 are respectively located on the upper and lower sides of the skirt plate 501, and the length and width of the limit plates 503 are both larger than the size of the strip hole 5011 to meet the function of limiting; there is no interference between adjacent limit plates 503. In this embodiment, the outer cover body 401 is made of aluminum alloy, and the inner cover body 402 is made of rubber. The transparent plate 404 is made of a transparent acrylic plate.

[0020] The specific operation of this embodiment is as follows: the crushing steel drill 2 is passed through one side of the transparent plate 404, so that the crushing steel drill 2 is placed in the concrete area to be crushed. Under the action of gravity, the visual protective cover 4 is placed on the upper surface of the concrete. When the baffle 502 acts on the protruding stone, it can adapt to the local shape of the stone and slide up and down in the strip hole 5011, so that the gap area of ​​the stone can be blocked by the baffle 502 that is not against the stone, and the limit plate 503 plays a limiting role. When the fixed rod 1 and the crushing steel drill 2 move up and down, the accordion cover 4 can be stretched or compressed by the up and down extension of the accordion cover 4 to ensure that the visual protective cover 4 is always in contact with the concrete floor to ensure the protective effect of the visual protective cover 4.

[0021] The scope of protection claimed by the present invention is not limited to the above specific implementation methods. For those skilled in the art, the present invention may have various deformations and changes. Any modification, improvement and equivalent substitution made within the concept and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A cement concrete pavement crusher, characterized in that: The utility model comprises a fixing rod (1) and an accordion cover (3), wherein the upper end of the fixing rod (1) is connected to a hand-held handle (6), and the lower end is fixedly connected to a coaxial crushing steel chisel (2), the upper end of the accordion cover (3) is fixedly connected to the outer periphery of the lower end of the fixing rod (1), and the lower end of the accordion cover (3) is fixedly connected to a visual protective cover (4), the shape of the visual protective cover (4) is conical, and the upper and lower ends are both open, the small diameter opening end of the visual protective cover (4) is connected to the accordion cover (3), the crushing steel chisel (2) is located inside the accordion cover (3) and the visual protective cover (4), and the visual protective cover (4) is a two-layer cover body, which is an outer cover body (401) and an inner cover body (402) located inside the outer cover body (401). A window (4021) is provided on the side of the visible protective cover (4). The outer layer of the window (4021) is a transparent plate (404), and the inner layer is a protective net (403). The transparent plate (404) is fixedly embedded in the outer cover body (401), and the protective net (403) is fixedly installed on the inner cover body (402). A comb plate group (5) is provided on the outer periphery of the large-diameter opening end of the visible protective cover (4), and the comb plate group (5) includes a skirt plate (501) and a plurality of comb plate structures.

2. A cement concrete pavement crusher according to claim 1, characterized in that: The skirt plate (501) is in the shape of a ring. A plurality of concentric arc-shaped strip holes (5011) are evenly and densely distributed on the ring body of the skirt plate (501). A comb plate structure is vertically slidably connected in each strip hole (5011). The comb plate structure comprises a baffle plate (502) and two limit plates (503). The two limit plates (503) are parallel and vertically fixed to the two ends of the baffle plate (502). The width of the baffle plate (502) matches the length of the strip hole (5011). The baffle plate (502) is slidably inserted into the strip hole (5011). The two limit plates (503) are respectively located at the upper and lower sides of the skirt plate (501). The length and width of the limit plates (503) are both larger than the size of the strip hole (5011) to meet the limit function.

3. A cement concrete pavement crusher according to claim 2, characterized in that: Adjacent limiting plates (503) do not interfere with each other.

4. A cement concrete pavement crusher according to claim 1, characterized in that: The outer cover body (401) is made of aluminum alloy, and the inner cover body (402) is made of rubber.

5. A cement concrete pavement crusher according to claim 1, characterized in that: The transparent plate (404) is made of a transparent acrylic plate.

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