A construction waste crushing equipment for road engineering

By introducing upper and lower adjustment components into the crusher, combined with a gravity component, the problems of difficulty in adjusting the crushing size and debris splashing in impact crushers are solved, achieving a finer crushing effect and a safer crushing process.

CN224423008UActive Publication Date: 2026-06-30CCCC SECOND HIGHWAY ENG CO LTD +1

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CCCC SECOND HIGHWAY ENG CO LTD
Filing Date
2026-05-18
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

The impact crusher plates of the existing impact crusher are fixed by bolts, making it difficult to adjust the crushing size of the waste according to the recycling needs. In addition, fine debris is easily splashed during crushing, which endangers the safety of the workers.

Method used

The device employs an upper adjustment component and a lower adjustment component, and controls the angle adjustment of the crushing plate through an airbag and a solenoid valve. Combined with a gravity component to block the feed inlet, it achieves the adjustment of the crushing plate gap and the blocking of debris.

Benefits of technology

It achieves precise control of crushing size and fine crushing effect, improves crushing efficiency, prevents debris from splashing, and ensures the safety of workers.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to the field of road engineering technology and provides a construction waste crushing equipment for road engineering, including a crushing box. The crushing box is equipped with a fixed cover, a crushing component, an upper adjustment component, and a lower adjustment component. The upper and lower adjustment components are connected by a pipeline, and a control valve is installed on the pipeline. The crushing component includes a crushing roller, an upper crushing plate, and a lower crushing plate for crushing waste. By setting the upper and lower adjustment components, the positions of the upper and lower crushing plates can be adjusted to increase the frequency of collision between the waste and the upper and lower crushing plates, thereby achieving a finer crushing effect. The control valve connects the upper and lower air bladders, adjusting the pressure of the lower air bladder to minimize the gap between the crushing roller and the lower crushing plate, obtaining smaller construction waste fragments, optimizing the waste crushing process, effectively controlling the size of the crushed waste, and improving crushing efficiency.
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Description

Technical Field

[0001] This utility model belongs to the field of road engineering technology, and in particular relates to a construction waste crushing device for road engineering. Background Technology

[0002] Road engineering refers to the entire process of planning, designing, constructing, maintaining, and managing roads, as well as the engineering entities involved. Like any other type of civil engineering, road engineering has distinct technical, economic, and management characteristics. Road engineering construction technology includes core processes such as earthwork, graded crushed stone construction, and cement-stabilized crushed stone base course. Construction waste is a general term for engineering spoil, engineering mud, construction waste, demolition waste, and decoration waste, including waste soil, waste materials, and other waste generated during the construction, expansion, reconstruction, and demolition of various buildings, structures, and pipelines, as well as during the decoration and renovation of residential houses. It does not include construction waste that has been inspected and identified as hazardous waste. Construction waste from road engineering needs to be crushed for recycling and reuse.

[0003] Existing impact crushers for crushing construction waste mostly use impact crushing plates that are fixed by bolts, which makes it inconvenient to adjust the crushed size of the construction waste according to the needs of recycling. In addition, when crushing construction waste, small debris may fly out from the feed inlet, which may cause injury to the workers who are disposing of the construction waste. Utility Model Content

[0004] The purpose of this utility model is to provide a construction waste crushing equipment for road engineering, which aims to solve the problems of existing impact crushers in crushing construction waste. The impact crushing plates are mostly fixed by bolts, which makes it inconvenient to adjust the size of the crushed construction waste according to the needs of recycling. In addition, when crushing construction waste, small debris will be splashed out from the feed inlet, which can easily cause injury to the workers who are disposing of construction waste.

[0005] This utility model is implemented as follows: a construction waste crushing device for road engineering, comprising:

[0006] A crushing box, on which a fixed cover, a crushing assembly, an upper adjustment assembly, and a lower adjustment assembly are installed;

[0007] The upper adjustment component and the lower adjustment component are connected by a pipe, and a control valve is installed on the pipe.

[0008] The crushing assembly includes a crushing roller, an upper crushing plate, and a lower crushing plate, and is used to crush waste.

[0009] The upper adjustment component includes:

[0010] An upper telescopic rod is fixedly installed on the crushing box, and an upper pressing plate is installed on the output shaft of the upper telescopic rod.

[0011] The upper airbag is fixedly installed on the crushing box;

[0012] The upper sealing column is fixedly installed on the crushing box and connected to the upper air bag through a solenoid valve;

[0013] The upper movable plug is slidably fitted inside the upper sealing column, and an upper spring and an upper fixed rod are fixedly installed on the upper movable plug;

[0014] The upper fixing rod is hinged to the upper crushing plate and is used to adjust the angle of the upper crushing plate.

[0015] As a further embodiment of this utility model, the crushing roller is rotatably fitted on the crushing box, the shaft end of the crushing roller is connected to a motor installed on the crushing box, and both the upper crushing plate and the lower crushing plate are rotatably fitted with the crushing box.

[0016] As a further embodiment of this utility model, the lower adjustment component includes:

[0017] The lower telescopic rod is fixedly installed on the crushing box, and the output shaft of the lower telescopic rod is equipped with a lower pressing plate.

[0018] The lower airbag is fixedly installed on the crushing box;

[0019] The lower sealing column is fixedly installed on the crushing box and connected to the lower air bag through a solenoid valve;

[0020] The lower movable plug is slidably fitted inside the lower sealing column, and a lower spring and a lower fixed rod are fixedly installed on the lower movable plug;

[0021] The lower fixing rod is hinged to the lower crushing plate and is used to adjust the angle of the lower crushing plate.

[0022] As a further embodiment of this utility model, there are two fixed covers, which are rotatably fitted onto the crushing chambers near the outer walls of the upper and lower airbags, respectively, to shield the upper and lower airbags. The control valve is fixedly installed on the crushing chamber between the upper and lower airbags, and is connected to the upper and lower airbags through pipes to control the flow of gas.

[0023] As a further embodiment of this utility model, a gravity component is also included, disposed on the crushing chamber, for shielding the splashed debris. The gravity component includes:

[0024] The gravity block is slidably fitted onto the crushing box;

[0025] The fixing rope is fixedly installed on the gravity block;

[0026] A baffle plate is rotatably fitted onto the crushing box, and one end of the fixing rope is fixedly connected to the baffle plate.

[0027] The upper guide wheel rotates and fits onto the crushing box.

[0028] The lower guide wheel rotates and fits on the crushing box near the lower part of the upper guide wheel, and works with the upper guide wheel to guide the fixing rope.

[0029] As a further embodiment of this utility model, the crushing box is also provided with a groove for limiting the stroke of the gravity block.

[0030] This utility model provides a construction waste crushing equipment for road engineering. Through the setting of upper and lower adjustment components, the positions of the upper and lower crushing plates can be adjusted, increasing the frequency of collisions between the waste and the upper and lower crushing plates, thereby achieving a finer crushing effect. A control valve connects the upper and lower air chambers, adjusting the pressure of the lower air chamber to minimize the gap between the crushing roller and the lower crushing plate, resulting in smaller construction waste fragments. This optimizes the waste crushing process, effectively controls the size of the crushed waste, and improves crushing efficiency. The gravity component also blocks the feeding port of the crushing box during construction waste crushing, preventing flying debris from injuring workers. Attached Figure Description

[0031] Figure 1 A three-dimensional structural diagram of a construction waste crushing device for road engineering provided for an embodiment of this utility model;

[0032] Figure 2 An internal structural diagram of a construction waste crushing device for road engineering provided for an embodiment of this utility model;

[0033] Figure 3 A cross-sectional view of a construction waste crushing device for road engineering provided in an embodiment of this utility model;

[0034] Figure 4 A cross-sectional view of a construction waste crushing device for road engineering provided in an embodiment of this utility model;

[0035] Figure 5 This utility model provides a construction waste crushing device for road engineering. Figure 4 Enlarged view of point A in the middle.

[0036] In the attached diagram: 1. Crushing box; 11. Fixed cover; 13. Slide chute; 2. Crushing assembly; 21. Crushing roller; 22. Upper crushing plate; 23. Lower crushing plate; 3. Upper adjusting assembly; 31. Upper telescopic rod; 311. Upper pressing plate; 32. Upper airbag; 33. Upper sealing column; 34. Upper movable plug; 35. Upper spring; 36. Upper fixed rod; 4. Lower adjusting assembly; 41. Lower telescopic rod; 411. Lower pressing plate; 42. Lower airbag; 43. Lower sealing column; 44. Lower movable plug; 45. Lower spring; 46. Lower fixed rod; 5. Gravity assembly; 51. Gravity block; 52. Fixing rope; 53. Baffle plate; 54. Upper guide wheel; 55. Lower guide wheel. Detailed Implementation

[0037] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0038] It is understood that the terms “first” and “second” as used herein may be used to describe various elements, but unless otherwise stated, these elements are not limited by these terms. These terms are used only to distinguish one element from another.

[0039] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0040] like Figures 1 to 5 As shown, a construction waste crushing device for road engineering is provided in one embodiment of this utility model, comprising:

[0041] Crushing box 1, on which a fixed cover 11, crushing component 2, upper adjustment component 3 and lower adjustment component 4 are installed;

[0042] The upper regulating component 3 and the lower regulating component 4 are connected by a pipe, and a control valve is installed on the pipe.

[0043] The crushing assembly 2 includes a crushing roller 21, an upper crushing plate 22 and a lower crushing plate 23, and is used to crush waste;

[0044] The upper adjustment component 3 includes:

[0045] The upper telescopic rod 31 is fixedly installed on the crushing box 1, and the upper pressing plate 311 is installed on the output shaft of the upper telescopic rod 31.

[0046] The upper airbag 32 is fixedly installed on the crushing box 1;

[0047] The upper sealing column 33 is fixedly installed on the crushing box 1 and is connected to the upper air bag 32 through a solenoid valve;

[0048] The upper movable plug 34 is slidably fitted inside the upper sealing column 33, and the upper spring 35 and the upper fixed rod 36 are fixedly installed on the upper movable plug 34.

[0049] The upper fixing rod 36 is hinged to the upper crushing plate 22 and is used to adjust the angle of the upper crushing plate 22;

[0050] Specifically, as a further embodiment of this utility model, the crushing roller 21 is rotatably fitted on the crushing box 1, the shaft end of the crushing roller 21 is connected to the motor installed on the crushing box 1, and the upper crushing plate 22 and the lower crushing plate 23 are both rotatably fitted with the crushing box 1.

[0051] In this embodiment of the utility model, during practical application, construction waste is put into the crushing box 1. The motor drives the crushing roller 21 to apply force to the waste. The crushing roller 21 causes the waste to be repeatedly crushed by repeated collisions with the upper crushing plate 22 and the lower crushing plate 23. The upper crushing plate 22 moves through the upper fixed rod 36 and is simultaneously reset by the force of the upper spring 35, so that the upper crushing plate 22 moves due to the collision with the waste, avoiding the waste from clogging between the crushing roller 21 and the upper crushing plate 22. The upper telescopic rod 31 drives the upper pressing plate 311 to press the upper airbag 32, so that the gas inside the upper airbag 32 flows into the upper sealing column 33. The upper movable plug 34 is driven by the gas to move the upper fixed rod 36. Adjusting the angle of the upper crushing plate 22 will reduce the distance that the upper crushing plate 22 moves repeatedly when crushing the waste, thereby increasing the number of collisions with the waste and simultaneously reducing the size of the crushed waste.

[0052] like Figures 1 to 5 As shown, in a further embodiment of this utility model, the lower adjustment component 4 includes:

[0053] The lower telescopic rod 41 is fixedly installed on the crushing box 1, and the output shaft of the lower telescopic rod 41 is equipped with a lower pressing plate 411.

[0054] The lower airbag 42 is fixedly installed on the crushing box 1;

[0055] The lower sealing column 43 is fixedly installed on the crushing box 1 and is connected to the lower air bag 42 through a solenoid valve;

[0056] The lower movable plug 44 is slidably fitted inside the lower sealing column 43, and the lower movable plug 44 is fixedly mounted with a lower spring 45 and a lower fixed rod 46.

[0057] The lower fixing rod 46 is hinged to the lower crushing plate 23 and is used to adjust the angle of the lower crushing plate 23;

[0058] Specifically, as a further embodiment of this utility model, there are two fixed covers 11, which are rotatably fitted on the crushing box 1 near the outer wall of the upper airbag 32 and the outer wall of the lower airbag 42, respectively, to cover the upper airbag 32 and the lower airbag 42. The control valve is fixedly installed on the crushing box 1 between the upper airbag 32 and the lower airbag 42. The control valve is connected to the upper airbag 32 and the lower airbag 42 through pipes respectively, to control the flow of gas.

[0059] In this embodiment of the present invention, during actual application, when crushing construction waste, the position of the lower crushing plate 23 can be adjusted by adjusting the lower adjusting component 4 in the same way as the upper adjusting component 3, thereby changing the size of the crushed construction waste. The upper airbag 32 and the lower airbag 42 are connected by the control valve, and the solenoid valve between the upper airbag 32 and the upper sealing column 33 is closed. When the upper airbag 32 is pressed, the gas inside the upper airbag 32 flows into the lower airbag 42. After that, the control valve is closed, and the lower airbag 42 is pressed. The lower movable plug 44 is pushed by the gas and moves to the maximum distance, thereby causing the lower crushing plate 23 to also be adjusted to the maximum distance. At this time, the distance between the lower crushing plate 23 and the crushing roller 21 is the shortest, and the size of the crushed construction waste is the smallest.

[0060] By setting the upper adjustment component 3 and the lower adjustment component 4, the positions of the upper crushing plate 22 and the lower crushing plate 23 can be adjusted, increasing the frequency of collision between the waste and the upper and lower crushing plates 22 and 23, thereby achieving a finer crushing effect. The control valve connects the upper airbag 32 and the lower airbag 42, adjusting the pressure of the lower airbag 42 to minimize the gap between the crushing roller 21 and the lower crushing plate 23, obtaining smaller construction waste fragments, optimizing the waste crushing process, effectively controlling the size of the crushed waste, and improving crushing efficiency.

[0061] like Figures 1 to 5 As shown, in a further embodiment of this utility model, a gravity component 5 is also included, disposed on the crushing box 1, for shielding the splashed debris. The gravity component 5 includes:

[0062] Gravity block 51 is slidably fitted onto crushing box 1;

[0063] The fixing rope 52 is fixedly installed on the gravity block 51;

[0064] The baffle plate 53 is rotatably fitted onto the crushing box 1, and one end of the fixing rope 52 is fixedly connected to the baffle plate 53.

[0065] The upper guide wheel 54 is rotatably fitted onto the crushing box 1;

[0066] The lower guide wheel 55 is rotatably fitted on the crushing box 1 near the lower part of the upper guide wheel 54, and cooperates with the upper guide wheel 54 to guide the fixed rope 52;

[0067] Specifically, as a further embodiment of this utility model, the crushing box 1 is also provided with a groove 13 for limiting the stroke of the gravity block 51;

[0068] In this embodiment of the present invention, when construction waste is put into the crushing box 1, the construction waste presses down on the baffle plate 53 by its own weight, causing the baffle plate 53 to rotate, resulting in the construction waste falling into the crushing box 1. Since the baffle plate 53 is not subjected to any force after the construction waste falls, the gravity block 51 slides down and resets under the action of gravity. The baffle plate 53 is pulled back to its original position by the fixing rope 52, thus closing the feeding port of the crushing box 1 and preventing any broken debris from splashing out.

[0069] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A construction waste crushing equipment for road engineering, characterized in that, include: Crushing box (1), on which a fixed cover (11), crushing component (2), upper adjustment component (3) and lower adjustment component (4) are installed; The upper adjustment component (3) and the lower adjustment component (4) are connected by a pipe, and a control valve is installed on the pipe; The crushing assembly (2) includes a crushing roller (21), an upper crushing plate (22) and a lower crushing plate (23), and is used to crush the waste; The upper adjustment component (3) includes: The upper telescopic rod (31) is fixedly installed on the crushing box (1), and the upper pressing plate (311) is installed on the output shaft of the upper telescopic rod (31). The upper airbag (32) is fixedly installed on the crushing box (1); The upper sealing column (33) is fixedly installed on the crushing box (1) and connected to the upper air bag (32) through a solenoid valve; The upper movable plug (34) is slidably fitted inside the upper sealing column (33), and the upper movable plug (34) is fixedly mounted with an upper spring (35) and an upper fixed rod (36). The upper fixing rod (36) is hinged to the upper crushing plate (22) and is used to adjust the angle of the upper crushing plate (22).

2. The construction waste crushing apparatus for road engineering according to claim 1, characterized by The crushing roller (21) is rotatably fitted on the crushing box (1). The shaft end of the crushing roller (21) is connected to the motor installed on the crushing box (1). The upper crushing plate (22) and the lower crushing plate (23) are both rotatably fitted with the crushing box (1).

3. The construction waste crushing apparatus for road engineering according to claim 1, characterized by The lower adjustment component (4) includes: The lower telescopic rod (41) is fixedly installed on the crushing box (1), and the output shaft of the lower telescopic rod (41) is equipped with a lower pressing plate (411). The lower airbag (42) is fixedly installed on the crushing box (1); The lower sealing column (43) is fixedly installed on the crushing box (1) and connected to the lower air bag (42) through a solenoid valve; The lower movable plug (44) is slidably fitted inside the lower sealing column (43), and a lower spring (45) and a lower fixing rod (46) are fixedly installed on the lower movable plug (44). The lower fixing rod (46) is hinged to the lower crushing plate (23) and is used to adjust the angle of the lower crushing plate (23).

4. The construction waste crushing apparatus for road engineering according to claim 3, characterized by There are two fixed covers (11), which are rotatably fitted on the crushing box (1) near the outer wall of the upper airbag (32) and the outer wall of the lower airbag (42) respectively, to shield the upper airbag (32) and the lower airbag (42). The control valve is fixedly installed on the crushing box (1) between the upper airbag (32) and the lower airbag (42). The control valve is connected to the upper airbag (32) and the lower airbag (42) respectively through pipes to control the flow of gas.

5. The construction waste crushing apparatus for road engineering according to claim 1, characterized by It also includes a gravity assembly (5), disposed on the crushing chamber (1), for shielding splashed debris, the gravity assembly (5) comprising: The gravity block (51) is slidably fitted onto the crushing box (1); A fixing rope (52) is fixedly installed on the gravity block (51); The baffle (53) is rotatably fitted on the crushing box (1), and one end of the fixing rope (52) is fixedly connected to the baffle (53); The upper guide wheel (54) is rotatably fitted onto the crushing box (1); The lower guide wheel (55) rotates and fits on the crushing box (1) near the lower guide wheel (54), and works with the upper guide wheel (54) to guide the fixed rope (52).

6. A construction waste crushing device for road engineering according to claim 5, characterized in that, The crushing box (1) is also provided with a groove (13) for limiting the stroke of the gravity block (51).