Concrete crushing device

Abstract

The utility model discloses a concrete crushing device. The concrete crushing device mainly comprises a crusher, an auxiliary bracket and a lifting mechanism, a wedge plate and a sliding rod are arranged in the lifting mechanism, a sliding groove is formed in the lower portion of the wedge plate, and one end of the lifting mechanism slides in the sliding groove. The lifting mechanism makes circular motion in a treading mode, then a wedge plate is driven to move upwards, a sliding rod is made to move upwards, a part of an auxiliary support is driven to ascend, the crusher is made to move, and therefore an operator does not need to frequently lift the crusher by hand or change the crushing point position in a lifting mode; and the working efficiency can be effectively improved, and the labor intensity of operators is reduced.

Description

Technical Field

[0001] The present application relates to the field of crushing, and in particular to a concrete crushing device. Background Art

[0002] In modern road construction, due to substandard initial work or design changes, the completed concrete pavement needs to be crushed and re-constructed to ensure project quality and ensure that various road indicators meet design standards. At the same time, the current construction industry is increasingly using green building materials for construction, most of which use recycled concrete as a base material to make recycled aggregate concrete for construction. Therefore, it is necessary to crush and collect the concrete of abandoned roads as the raw material for recycled aggregate concrete. The current form of road concrete crushing is mostly for workers to use handheld crushers to crush the concrete floor and the concrete siderails on both sides. The existing concrete crusher has only one gripping point at the rear end, which is very inconvenient for workers to operate when facing a road surface or siderail with a large inclination. During the concrete crushing process, the device as a whole sinks downward into the crushed concrete. The worker needs to lift the device to move to the next surface to be crushed. Due to the heavy weight of the crusher itself, the long-term repeated lifting and lowering makes the worker's labor intensity high.

[0003] For example, a concrete crusher for construction with publication number CN207259933U has a structure including a crusher housing and a support frame. A switch button is provided at the upper front end of the crusher housing, a blower is provided inside the top of the crusher housing, a ventilation handle is provided at the top of the crusher housing, the air outlet of the blower is connected to the head end of the air supply pipe, the signal output end of the switch button is connected to the signal input end of the blower, an air inlet is provided on the right side of the crusher housing, and an air filter is provided in the air inlet. The above-mentioned crushing device can alleviate the vibration of the handle during use by providing a plastic handle cover, but it cannot reduce the labor intensity of the operator and cannot facilitate the operator to crush concrete on the ground or side rails with a large inclination angle. Therefore, the present application designs a concrete crushing device that can assist the operator in lifting the crusher when crushing ground concrete, reduce the labor intensity of the operator, and facilitate the operator's operation. Utility Model Content

[0004] The purpose of this utility model is to provide a concrete crushing device to solve the above-mentioned problems.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a concrete crushing device, comprising a crusher, an auxiliary support, and a lifting mechanism that enables the crusher to move upward along the auxiliary support by applying force through foot pedals so that the operator can change the crushing point; the crusher and the auxiliary support are detachably connected, and the lifting mechanism is slidably connected to the rear of the auxiliary support; a wedge plate and a sliding rod are provided in the lifting mechanism, the sliding rod is slidably connected to the rear of the auxiliary support with a limit, the wedge plate is fixedly connected to the sliding rod, a sliding groove is provided at the lower part of the wedge plate, and one end of the lifting mechanism slides in the sliding groove; the lifting mechanism performs a circular motion by stepping on, thereby driving the wedge plate to move upward, causing the sliding rod to move upward, driving a part of the auxiliary support to rise, thereby causing the crusher to move.

[0006] The lifting mechanism allows the operator to lift the sliding rod by stepping on it, thereby driving the crusher to lift, to assist the operator in moving the crusher to the next crushing surface, which can effectively reduce the labor intensity of the operator and improve the concrete crushing efficiency.

[0007] Furthermore, the crusher includes a body, a handle, a connecting frame, a locking groove and a crushing head; the handle is arranged at the upper end of the body, the crushing head is arranged at the lower end of the body, one end of the connecting frame is fixedly connected to the side of the body, and the locking groove is opened at the rear of the body.

[0008] Furthermore, the auxiliary bracket includes a frame body, an adjustment slot and a sliding lock. The adjustment slot is opened in the middle of the frame body, the sliding lock is slidably connected to the adjustment slot, the sliding rod is slidably connected to the rear of the frame body, the sliding rod can be inserted into the adjustment slot, and the frame body fits the size of the machine body; an array of first rotating shafts is also provided at the rear of the frame body, the end of the first rotating shaft is rotatably connected to the first connecting rod, the end of the first connecting rod away from the first rotating shaft is provided with a universal wheel, the side of the first rotating shaft is connected to the adjustment rod, and the end of the adjusting rod away from the first rotating shaft is inserted with a rotating handle.

[0009] Furthermore, the lifting mechanism includes a second rotating shaft, a second connecting rod, a third connecting rod and a foot pedal; the second rotating shaft is arranged in the middle of the second connecting rod, so that the second connecting rod rotates around the second rotating shaft, one end of the second connecting rod is slidably connected to the sliding groove, and the other end of the second connecting rod is welded to the foot pedal, the end of the second connecting rod close to the wedge plate is a hollow structure, one end of the third connecting rod is plugged into the rear part of the frame, and the other end of the third connecting rod is plugged into the second rotating shaft, and a holding frame is provided on the side of the foot pedal.

[0010] The auxiliary bracket is connected to the crusher through a sliding lock, and the holding frame allows the operator to reverse the device. By holding the holding frame and handle, the ground with a large inclination angle, the side rails and even the concrete diagonally above can be crushed, which can effectively extend the crushing range of the crusher, make it easier for operators to operate and shorten working hours.

[0011] Compared with the existing technology, it has the following beneficial effects:

[0012] The utility model provides a concrete crushing device. Through the provided lifting mechanism, the operator can lift the sliding rod by stepping on it, thereby driving the crusher to lift, so as to assist the operator in moving the crusher to the next crushing surface, which can effectively reduce the labor intensity of the operator and improve the concrete crushing efficiency.

[0013] The auxiliary bracket is connected to the crusher through a sliding lock, and the holding frame allows the operator to reverse the device. By holding the holding frame and handle, the ground with a large inclination angle, the side rails and even the concrete diagonally above can be crushed, which can effectively extend the crushing range of the crusher, make it easier for operators to operate and shorten working hours. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is an overall schematic diagram of the first embodiment of the utility model;

[0015] Figure 2 This is a schematic diagram of a clamping plate of a concrete crushing device according to the present invention;

[0016] Figure 3 This is an overall schematic diagram of the second embodiment of the utility model;

[0017] Figure 4 This is a schematic diagram of the clamping mechanism of the second embodiment of the present utility model;

[0018] Figure 5 This is a schematic diagram from another angle of the clamping mechanism of the second embodiment of the present invention.

[0019] In the figure: 1-crusher; 11-machine body; 12-handle; 13-connecting frame; 14-locking groove; 15-crushing head; 2-auxiliary bracket; 21-frame; 211-first rotating shaft; 212-first connecting rod; 213-universal wheel; 214-adjusting rod; 215-rotating handle; 22-adjusting groove; 23-sliding lock; 3-lifting mechanism; 31-second rotating shaft; 32-second connecting rod; 33-third connecting rod; 34-foot pedal; 4-wedge plate; 41-sliding groove; 5-sliding rod; 6-grip frame. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] See also Figures 1 to 5 As shown, the utility model provides the following technical solutions: a concrete crushing device, comprising a crusher 1, an auxiliary support 2 and a lifting mechanism 3 that enables the crusher 1 to move upward along the auxiliary support 2 by applying force through foot pedals so that the operator can change the crushing point; the crusher 1 is detachably connected to the auxiliary support 2, and the lifting mechanism 3 is slidingly connected to the rear of the auxiliary support 2; a wedge plate 4 and a sliding rod 5 are provided in the lifting mechanism 3, and the sliding rod 5 is slidingly connected to the rear of the auxiliary support 2 with a limit, the wedge plate 4 is fixedly connected to the sliding rod 5, and a sliding groove 41 is provided at the lower part of the wedge plate 4, and one end of the lifting mechanism 3 slides in the sliding groove 41; the lifting mechanism 3 performs a circular motion by stepping on, thereby driving the wedge plate 4 to move upward, causing the sliding rod 5 to move upward, driving a part of the auxiliary support 2 to rise, thereby causing the crusher 1 to be displaced.

[0022] As another example, Figure 1 and Figure 2 As shown, the crusher 1 includes a body 11, a handle 12, a connecting frame 13, a locking groove 14 and a crushing head 15; the handle 12 is arranged at the upper end of the body 11, the crushing head 15 is arranged at the lower end of the body 11, one end of the connecting frame 13 is fixedly connected to the side of the body 11, and the locking groove 14 is opened at the rear of the body 11. The internal structure of the crusher 1 is a handheld breaker commonly used on the market. After the power is turned on, the crushing head 15 is aimed at the ground position to be crushed by holding the handle 12, and the motor is started to make the crushing head 15 vibrate rapidly, thereby applying stress to the concrete pavement to perform crushing operations.

[0023] As another example, Figures 1 to 5 As shown, the auxiliary bracket 2 includes a frame body 21, an adjustment slot 22, and a sliding lock 23. The adjustment slot 22 is opened in the middle of the frame body 21. The sliding lock 23 is slidably connected to the adjustment slot 22. The sliding rod 5 is slidably connected to the rear of the frame body 21, and the sliding rod 5 can pass into the adjustment slot 22. Before the crushing operation, the handle 12 at the upper end of the body 11 is held, and the crusher 1 is placed into the auxiliary bracket 2. The sliding lock 23 is engaged with the locking slot 14 through the buckle of the sliding lock 23, thereby fixing the body 11 in the auxiliary bracket 2. The adjustment slot 22 is set so that the sliding lock 23 can slide in the adjustment slot 22, thereby driving the body 11 to move.

[0024] See also Figure 3 , the frame 21 and the body 11 are in close proximity to each other in size.

[0025] See also Figure 3 as well as Figure 4 The rear portion of the frame 21 is also provided with a first set of rotating shafts 211. The ends of the first rotating shafts 211 are rotatably connected to first connecting rods 212. The ends of the first connecting rods 212, away from the first rotating shafts 211, are provided with universal wheels 213. After the machine body 11 is placed on the auxiliary support 2, the device is placed on the ground. The crushing head 15 and at least two sets of universal wheels 213 are in contact with the ground simultaneously, forming multiple points of support, allowing the device to be properly placed on the ground. Pulling the handle 12 can synchronize the universal wheels 213, making it easier for operators to change the crushing point.

[0026] See also Figure 4 An adjusting rod 214 is connected to the side of the first rotating shaft 211, and a rotating handle 215 is inserted into the end of the adjusting rod 214 away from the first rotating shaft 211. When the crushing angle of the crusher 1 relative to the ground needs to be changed, the rotating handle 215 is manually rotated, thereby rotating the adjusting rod 214. The rotation of the adjusting rod 214 rotates the first rotating shaft 211, causing the angle between the auxiliary bracket 2 and the first connecting rod 212 to change, thereby changing the angle of the crusher 1 relative to the ground.

[0027] See also Figure 4 as well as Figure 5 The lifting mechanism 3 includes a second rotating shaft 31, a second connecting rod 32, a third connecting rod 33 and a foot pedal 34; the second rotating shaft 31 is arranged in the middle of the second connecting rod 32, so that the second connecting rod 32 rotates around the second rotating shaft 31, one end of the second connecting rod 32 is slidably connected to the sliding groove 41, and the other end of the second connecting rod 32 is welded to the foot pedal 34, and the end of the second connecting rod 32 close to the wedge plate 4 is a hollow structure, one end of the third connecting rod 33 is plugged into the rear portion of the frame body 21, and the other end of the third connecting rod 33 is plugged into the second rotating shaft 31. After the operator adjusts the crushing angle, he can hold the handle 12 to perform the crushing operation. The universal wheel 213 can be equipped with a locking function. During the crushing process, the operator can step on the locking plate of the universal wheel 213 to prevent the universal wheel 213 from being disturbed by the crusher 1 and displaced. The operator holds the handle 12 and aligns the crushing head 15 with the position to be crushed to perform the crushing operation. After the crushing is completed, the crushing head 15 is immersed in the concrete. The second connecting rod 32 is rotated around the second rotating shaft 31 by stepping on the pedal, thereby driving the wedge plate 4 to move upward along the auxiliary bracket 2, so that the sliding rod 5 slides upward to lift the sliding lock 23; the sliding lock 23 drives the body 11 to slide upward, so that the crushing head 15 is disengaged from the crushed concrete, and the operator pulls the handle 12 to move the device to the next crushing point.

[0028] See also Figure 4 A gripping frame 6 is provided on the side of the foot pedal 34. When it is necessary to crush the ground with a large inclination angle or the concrete side rails on both sides of the road, the operator can reverse the device, hold the handle 12 with one hand and the gripping frame 6 with the other hand to lift the device and perform crushing operations on the above-mentioned position or even the top.

[0029] Working principle: Before carrying out the crushing operation, the crusher 1 is placed into the auxiliary bracket 2, and the crusher 1 is fixedly connected to the auxiliary bracket by the engagement of the sliding lock 23 and the locking groove 14. Then the device is pushed to the crushing point, and the first rotating shaft 211 is rotated by turning the rotating handle 215, thereby changing the crushing angle of the crusher 1. The crushing operation can be carried out normally by holding the handle 12. After the crushing is completed at one point, the operator steps on the foot pedal 34 to rotate the second connecting rod 32, driving the wedge plate 4 to rise, and then driving the sliding rod 5 to lift the sliding lock 23, driving the body 11 to move upward, so that the crushing head 15 is out of the crushed concrete, and then the device can be moved to the next crushing point. When it is necessary to crush the ground with a larger inclination angle or the concrete siderails on both sides of the road, the operator can reverse the device, hold the handle 12 with one hand and the holding frame 6 with the other hand to lift the device, and perform crushing operations on the above-mentioned position or even the top.

[0030] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A concrete crushing device, characterized in that , comprising a crusher (1), an auxiliary bracket (2) and a lifting mechanism (3) for causing the crusher (1) to be displaced and the crushing point to be changed by applying force through foot pedaling; the crusher (1) is detachably connected to the auxiliary bracket (2), and the lifting mechanism (3) is slidably connected to the rear portion of the auxiliary bracket (2); a wedge plate (4) and a sliding rod (5) are provided in the lifting mechanism (3), and the sliding rod (5) is slidably connected to the rear portion of the auxiliary bracket (2) with a limited position, the wedge plate (4) is fixedly connected to the sliding rod (5), and a sliding groove (41) is provided at the lower portion of the wedge plate (4), and one end of the lifting mechanism (3) slides in the sliding groove (41); the lifting mechanism (3) is subjected to a circular motion by stepping on, thereby driving the wedge plate (4) to move upward, causing the sliding rod (5) to move upward, driving a part of the auxiliary bracket (2) to rise, thereby causing the crusher (1) to be displaced.

2. The concrete crushing device according to claim 1, characterized in that: The crusher (1) comprises a body (11), a handle (12), a connecting frame (13), a locking groove (14) and a crushing head (15); the handle (12) is arranged at the upper end of the body (11), the crushing head (15) is arranged at the lower end of the body (11), one end of the connecting frame (13) is fixedly connected to the side of the body (11), and the locking groove (14) is opened at the rear of the body (11).

3. The concrete crushing device according to claim 2, characterized in that: The auxiliary bracket (2) includes a frame body (21), an adjustment slot (22) and a sliding lock (23), wherein the adjustment slot (22) is opened in the middle of the frame body (21), the sliding lock (23) is slidably connected to the adjustment slot (22), the sliding rod (5) is slidably connected to the rear of the frame body (21), and the sliding rod (5) can be passed into the interior of the adjustment slot (22).

4. The concrete crushing device according to claim 3, characterized in that: The frame (21) and the machine body (11) are closely matched in size.

5. The concrete crushing device according to claim 4, characterized in that: The rear portion of the frame (21) is further provided with an array of first rotating shafts (211), the ends of the first rotating shafts (211) are rotatably connected to first connecting rods (212), and a universal wheel (213) is provided at one end of the first connecting rod (212) away from the first rotating shafts (211).

6. The concrete crushing device according to claim 5, characterized in that: The side of the first rotating shaft (211) is connected to an adjusting rod (214), and an end of the adjusting rod (214) away from the first rotating shaft (211) is plugged with a rotating handle (215).

7. The concrete crushing device according to claim 5, characterized in that: The lifting mechanism (3) includes a second rotating shaft (31), a second connecting rod (32), a third connecting rod (33) and a foot pedal (34); the second rotating shaft (31) is arranged in the middle of the second connecting rod (32), so that the second connecting rod (32) rotates around the second rotating shaft (31), one end of the second connecting rod (32) is slidably connected to the sliding groove (41), the other end of the second connecting rod (32) is welded to the foot pedal (34), the end of the second connecting rod (32) close to the wedge plate (4) is a hollow structure, one end of the third connecting rod (33) is plugged into the rear part of the frame (21), and the other end of the third connecting rod (33) is plugged into the second rotating shaft (31).

8. The concrete crushing device according to claim 7, characterized in that: A gripping frame (6) is provided on the side of the foot pedal (34).

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