A highway pavement breaking device

Abstract

The utility model relates to a highway pavement breaking device belongs to pavement breaking technical field, this highway pavement breaking device, include: hydraulic pick body and set up in the handle of hydraulic pick body top two sides, protection mechanism, the protection mechanism includes setting up a plurality of traction piece in the four -around hydraulic pick body, the surface slidingly connected with adjusting block of hydraulic pick body, through setting up a plurality of traction plate on the surface of hydraulic pick and setting up rubber protection cover between traction plate, thereby covering the drill bit vicinity, effectively forms the covering on the contact point above of pick head and road surface, thereby the most part of gravel is limited below the protection cover, thereby greatly reduced the risk of gravel to injure staff, through setting up adjusting block cooperation drive rod can open and close operation to protection cover, effectively takes into account the protection and field of vision, makes staff before the pick head and ground contact, can greatly reduce the field of vision interference of protection cover to staff.

Description

Technical Field

[0001] This utility model relates to the field of road surface breaking technology, and in particular to a highway road surface breaking device. Background Technology

[0002] Road surface breaking is primarily used to repair structural damage and improve the performance of existing roads. Hydraulic picks, as the core breaking device, utilize a hydraulic system to drive a piston, generating high-frequency impacts that concentrate enormous energy in the pick head, enabling efficient breaking of concrete and asphalt pavements. Their handheld design ensures operational flexibility, making them suitable for various scenarios such as municipal maintenance, and are a key piece of equipment in road maintenance and upgrading.

[0003] The core operating principle of existing hydraulic picks is to convert hydraulic energy into mechanical impact energy. Its internal hydraulic system drives oil to generate high pressure, which in turn drives a piston in reciprocating motion. The piston transfers energy to the pick shaft through compression of nitrogen gas or direct impact, and finally, the pick head performs high-frequency, high-energy breaking operations on the road surface. However, because hydraulic picks require manual operation, and the pick head may generate flying debris during road breaking, traditional hydraulic picks typically lack the function to restrain this flying debris, leading to certain safety hazards for workers. Utility Model Content

[0004] Therefore, it is necessary to provide a road surface breaking device to address the problem that traditional hydraulic picks cannot suppress the flying of gravel.

[0005] A road surface breaking device includes: a hydraulic pick body and handles disposed on both sides of the top of the hydraulic pick body;

[0006] The protective mechanism includes multiple traction plates disposed around the hydraulic pick body. An adjusting block is slidably connected to the surface of the hydraulic pick body, and the adjusting block is hinged to the top of the multiple traction plates.

[0007] In one embodiment, the plurality of traction plates are respectively hinged to the four sides of the adjusting block, and a rubber protective cover is provided between the plurality of traction plates.

[0008] In one embodiment, a top block is fixedly connected to the side surface of the traction plate near the hydraulic pick body, and the cross-section of the top block is a right-angled triangle.

[0009] In one embodiment, a positioning block is fixedly connected to the surface of the hydraulic pick body below the adjusting block, and multiple rotating rods are rotatably connected to the surface of the positioning block, with the rotating rods abutting against the top block.

[0010] In one embodiment, two connecting rods are fixedly connected to both sides of the top of the adjusting block, and the cross-section of the connecting rods is "L" shaped.

[0011] In one embodiment, a drive rod is fixedly connected between two connecting rods located on the same side, the top end of the drive rod passing through the handle and having a button at the top end.

[0012] In one embodiment, the handle has a groove inside, and a limit block is fixedly connected to the surface of the drive rod, the limit block being slidably connected inside the groove.

[0013] In one embodiment, a spring is provided inside the groove of the handle, and the spring is disposed between the limiting block and the bottom end of the groove.

[0014] Beneficial effects

[0015] 1. By setting multiple traction plates on the surface of the hydraulic pick and installing rubber protective covers between the traction plates, the area around the drill bit is covered, effectively forming a cover above the contact point between the pick and the road surface. This confines most of the gravel below the protective cover, greatly reducing the risk of gravel injuring workers and directly improving operational safety.

[0016] 2. The protective cover can be opened and closed by setting an adjustment block in conjunction with the drive rod, which effectively balances protection and visibility. Before the pick touches the ground, the operator can greatly reduce the obstruction of the protective cover to the operator's vision, ensure crushing accuracy, and increase the practicality of the device. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the overall structure of the protective mechanism of this utility model in its deployed state;

[0020] Figure 3 This is a schematic diagram of the overall structure of the protective mechanism of this utility model;

[0021] Figure 4 This is an exploded view of the structure of this utility model;

[0022] Figure 5 This is a cross-sectional view of the handle of this utility model.

[0023] Figure label:

[0024] 100. Hydraulic pick body; 200. Handle; 300. Protective mechanism; 310. Traction plate; 311. Top block; 320. Adjusting block; 330. Connecting rod; 331. Drive rod; 332. Limiting block; 333. Spring; 340. Positioning block; 341. Rotating rod. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0026] The following is combined with Figure 1 - Figure 5 This invention describes a road surface breaking device.

[0027] In one embodiment, a road surface breaking device includes: a hydraulic pick body 100 and handles 200 disposed on both sides of the top of the hydraulic pick body 100.

[0028] The protective mechanism 300 includes multiple traction plates 310 disposed around the hydraulic pick body 100. An adjustment block 320 is slidably connected to the surface of the hydraulic pick body 100, and the adjustment block 320 is hinged to the top of the multiple traction plates 310.

[0029] In this device, the hydraulic pick body 100 is an ST20T type hydraulic crusher, mainly composed of a power source interface, hydraulic cylinder, impact piston, reversing valve, accumulator, pick rod, and outer handle. When the device is started, the high-pressure oil supplied by the external hydraulic drive device enters the pick body through the interface, driving the reversing valve to act, causing hydraulic oil to be alternately injected into the front and rear chambers of the cylinder, pushing the impact piston to perform high-speed reciprocating motion. During the return stroke, the piston compresses the accumulator to store energy, and during the stroke, the accumulator releases energy and superimposes the hydraulic thrust, jointly driving the piston to impact the tail of the pick rod with extremely high kinetic energy. Finally, the huge impact energy is transferred to the crushing object through the pick head, achieving efficient crushing.

[0030] like Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, multiple traction plates 310 are respectively hinged to the four sides of the adjusting block 320, and rubber protective covers are provided between the multiple traction plates 310. A top block 311 is fixedly connected to the surface of the traction plate 310 near the hydraulic pick body 100, and the cross-section of the top block 311 is a right-angled triangle. A positioning block 340 is fixedly connected to the surface of the hydraulic pick body 100 below the adjusting block 320, and multiple rotating rods 341 are rotatably connected to the surface of the positioning block 340, with the rotating rods 341 abutting against the top block 311. Two connecting rods 330 are fixedly connected to both sides of the top of the adjusting block 320, and the cross-section of the connecting rods 330 is "L" shaped.

[0031] In this embodiment, as the traction plate 310 moves downward with the adjusting block 320, its top end rotates outward along the adjusting block 320. Then, the inclined surface of its top block 311 slides along the rotating rod 341. As the rotating rod 341 moves on the inclined surface, it gradually pushes the traction plate outward, thereby unfolding the traction plate and causing the rubber protective cover to unfold. The rubber protective cover is made of high-toughness rubber. At this time, the rubber protective cover, together with the traction rod, forms a cone-shaped coverage area above the pickaxe, thereby blocking most of the upward-splashing gravel and thus avoiding... The protective shield prevents injury to the worker's torso and head from flying debris. Only a small amount of debris will fly out from the side of the shield. Since workers usually wear protective clothing such as boots while working, the flying debris can prevent injury. The two connecting rods 330 on the same side are set on both sides away from the center line. Because the surface of the hydraulic pick body 100 is provided with a power source interface, which needs to be connected to an external hydraulic drive device, the two connecting rods 330 need to be set to bypass the power source structure to avoid mutual interference during operation.

[0032] It should be noted that this device protects workers by installing multiple adjustable traction plates near the bottom of the hydraulic pick body 100 along with a rubber protective cover. Since the protective structure of this device is located on the surface and periphery of the hydraulic pick body 100, it does not alter the internal structure of the hydraulic pick body 100 and therefore does not affect its normal use. Furthermore, since the multiple traction plates are openable, they do not obstruct the worker's view when the worker needs to align with the road surface, thus not affecting the normal operation of this device.

[0033] like Figure 3 , Figure 4 and Figure 5As shown, a drive rod 331 is fixedly connected between two connecting rods 330 on the same side. The top end of the drive rod 331 passes through the handle 200 and has a button at its top. A groove is provided inside the handle 200, and a limit block 332 is fixedly connected to the surface of the drive rod 331, slidingly connected inside the groove. A spring 333 is provided inside the groove of the handle 200, positioned between the limit block 332 and the bottom end of the groove.

[0034] In this embodiment, when the staff needs to close the protective cover, they simply release the button. At this time, the drive rod 331 loses pressure, the spring 333 releases and pushes the limit block 332 to slide upward along the slide groove to reset. At this time, the drive rod 331 follows and drives the connecting rod 330 to move synchronously and drives the adjusting block 320 to reset. The adjusting block 320 simultaneously drives the top of the traction plate to move upward, while the bottom of the traction plate will keep the top block 311 in contact with the rotating rod 341 under the action of gravity, thereby closing the protective cover.

[0035] Working principle: Before use, the device needs to be connected to the hydraulic drive device, then the device is moved to the area to be constructed, and then the device is started to break up the road surface.

[0036] Before starting the device, the protective cover needs to be opened. At this time, the worker presses the button at the top of the drive rod 331 with his finger to move the drive rod 331 downward. At this time, the drive rod 331 will simultaneously move the connecting rod 330 and the adjusting block 320 downward. As the adjusting block 320 moves downward, it will also move the traction plate downward. During the downward movement of the traction plate, the top block 311 on its inner side and the rotating roller along the surface of the positioning block 340 move. As the traction plate moves downward, it unfolds around the adjusting block 320. At this time, the rubber protective cover between the traction plates will unfold simultaneously to cover the area above the contact between the pick and the road surface, greatly reducing the injury caused to the worker by flying gravel.

[0037] When the worker finishes drilling a hole and needs to pull the pick out of the road, he only needs to release the pressure on the drive rod 331. Under the action of the spring force 333 and the gravity at the end of the traction plate, it will automatically reset. At this time, the protective cover is in a retracted state, which makes it convenient for the worker to position the next drilling position.

[0038] It should be noted that the hydraulic pick body 100, spring 333, and handle 200 mentioned above are all components with relatively mature existing technology. The specific models can be selected according to actual needs. At the same time, the hydraulic pick body 100 is powered by an internal power supply. The specific power supply method can be selected according to the situation, which will not be elaborated here.

[0039] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A highway pavement breaking device, characterized by, include: The hydraulic pick body (100) and the handles (200) located on both sides of the top of the hydraulic pick body (100). The protective mechanism (300) includes a plurality of traction plates (310) disposed around the hydraulic pick body (100), and an adjusting block (320) is slidably connected to the surface of the hydraulic pick body (100), the adjusting block (320) being hinged to the top of the plurality of traction plates (310).

2. The highway pavement breaking apparatus of claim 1, wherein, The plurality of traction plates (310) are respectively hinged to the four sides of the adjusting block (320), and a rubber protective cover is provided between the plurality of traction plates (310).

3. The highway pavement breaking apparatus of claim 1, wherein, The traction plate (310) has a top block (311) fixedly connected to one side surface of the hydraulic pick body (100), and the top block (311) has a right-angled triangle cross section.

4. The highway pavement breaking apparatus of claim 3, wherein, Below the adjusting block (320) is a positioning block (340) fixedly connected to the surface of the hydraulic pick body (100). Multiple rotating rods (341) are rotatably connected to the surface of the positioning block (340), and the rotating rods (341) abut against the top block (311).

5. The highway pavement breaking apparatus of claim 1, wherein, Two connecting rods (330) are fixedly connected to both sides of the top of the adjusting block (320), and the cross-section of the connecting rods (330) is "L" shaped.

6. The highway pavement breaking apparatus of claim 5, wherein, A drive rod (331) is fixedly connected between the two connecting rods (330) located on the same side. The top end of the drive rod (331) passes through the handle (200) and has a button at the top end.

7. The highway pavement breaking apparatus of claim 6, wherein, The handle (200) has a sliding groove inside, and a limiting block (332) is fixedly connected to the surface of the drive rod (331). The limiting block (332) is slidably connected inside the sliding groove.

8. The highway pavement breaking apparatus of claim 1, wherein, A spring (333) is provided inside the groove of the handle (200), and the spring (333) is located between the limiting block (332) and the bottom end of the groove.

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