Stone crushing device for road engineering construction

Abstract

The invention discloses a stone crushing device for road engineering construction, belongs to the field of road engineering construction, and aims to solve the problems that an ideal crushing effect cannot be achieved sometimes after one-time crushing, at the moment, stones need to be manually moved to replace positions, and non-crushing positions can move to positions below crushing blades, so that the crushing effect is influenced. The stone crushing device for road engineering construction solves the problems that labor is wasted and working efficiency is affected due to the fact that the stone crushing device is manually moved in the prior art, and the stone crushing device for road engineering construction comprises a cart body, a hydraulic connecting box fixedly connected to the middle of the upper portion of the cart body and a first supporting plate fixedly connected to one side of the upper portion of the cart body. According to the stone crushing device, the hydraulic rod drives the rotating mechanism and the pushing mechanism to move downwards when moving downwards, and the pushing mechanism clamps and rotates after the rotating mechanism moves to a certain distance, so that stones can rotate before being crushed, and the purpose of saving manpower is achieved.

Description

Technical Field

[0001] The invention relates to the field of road engineering construction, and in particular to a stone crushing device used for road engineering construction. Background Art

[0002] The stone crushing device used in road construction usually refers to equipment specially used for crushing stones or materials such as gravel or sand that meet the requirements of road construction. The stone crushing device plays an important role in road engineering. It can help realize the processing and production of stones in road construction and provide building materials and basic materials.

[0003] The announcement number is CN208668501U, which discloses a stone crushing device for water conservancy project construction, wherein the mounting seat is mounted on the upper surface of the mounting plate, the hydraulic connection box is located on one side of the upper surface of the mounting plate, a hydraulic press is installed between the hydraulic connection box and the mounting seat, the oil outlet end of the hydraulic press is located inside the hydraulic connection box, an oil outlet is installed on the top of the hydraulic connection box, a fixed support arm is mounted on the mounting plate, the telescopic support arm is sleeved in the fixed support arm, and the telescopic support arm is at a right angle. The existing stone crushing device mainly uses a hydraulic cylinder to push the crushing knife downward to crush the stone when crushing the stone, but sometimes the ideal crushing effect cannot be achieved after crushing once. At this time, it is necessary to manually move the stone to change its position so that the unbroken position can be moved under the crushing blade. Manual movement is very wasteful and affects work efficiency.

[0004] To solve the above problems, a stone crushing device for road engineering construction is proposed. Summary of the invention

[0005] The purpose of the present invention is to provide a stone crushing device for road engineering construction, which solves the problem that sometimes the ideal crushing effect cannot be achieved after one crushing. At this time, it is necessary to manually move the stones to change their positions so that the unbroken positions can be moved under the crushing blades. Using manual movement is very wasteful and affects work efficiency.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a stone crushing device for road engineering construction, comprising a cart body, a hydraulic connection box fixedly connected to the middle of the upper part of the cart body, a first support plate fixedly connected to one side of the upper part of the cart body, a hydraulic press fixedly connected to the upper part of the first support plate, a hydraulic rod fixedly connected to the output end of the hydraulic press, a crushing knife fixedly connected to the lower end of the hydraulic rod, a rotating mechanism is arranged below the side of the first support plate away from the hydraulic connection box, and a pushing mechanism is arranged below the rotating mechanism;

[0007] The pushing mechanism includes a sliding component and an elastic component, and the elastic component is arranged below the sliding component;

[0008] The rotating mechanism includes a supporting cylinder fixedly connected to the lower side of the first supporting plate away from the hydraulic connecting box, a first groove is provided on the inner side of the supporting cylinder, the hydraulic rod is nested in the inner side of the first groove, a first hole is connected on the inner wall of the first groove close to the hydraulic connecting box, a first guide groove is connected on the inner wall of the first groove away from the hydraulic connecting box, a first guide rod is arranged on the inner side of the first guide groove, a second groove is arranged inside the hydraulic rod, a rotating disk is arranged on the inner side of the second groove, the rotating disk is connected to the first guide rod in a fixed manner, a connecting rod is arranged inside the second groove, the connecting rod is connected to the rotating disk in a fixed manner, a second hole is arranged inside the rotating disk, the inner side surface of the second hole is fitted with the outer side surface of the hydraulic rod, the appearance and structural shape of the second hole is circular, and the inner side surface of the second groove is fitted with the outer side surface of the rotating disk.

[0009] Preferably, the inner side surface of the first groove fits with the outer side surface of the rotating disk, and the external structural shape of the rotating disk is cylindrical.

[0010] Preferably, the appearance structure shapes of the upper and lower ends of the first guide groove are vertical straight lines, and the appearance structure of the middle end of the first guide groove is spiral, and the first guide groove and the first guide rod are matched in a clearance fit.

[0011] Preferably, the width of the second hole is greater than the width of the connecting rod, and the upper and lower heights of the second hole are greater than the upper and lower heights of the connecting rod.

[0012] Preferably, the sliding assembly includes a first connecting plate fixedly connected to the other end of the connecting rod, a guide hole is provided on the inner side of the first connecting plate, and the upper and lower inner walls of the guide hole are connected with a first slide groove, the central axis of the first slide groove is parallel to the central axis of the guide hole, a first slider is provided on the inner side of the first slide groove, a second guide rod is provided on the inner side of the guide hole, and the second guide rod is connected to the first slider in a fixed connection manner, a second slide groove is provided inside the first support plate away from the hydraulic connection box on one side, a second slider is provided on the inner side of the second slide groove, the lower end of the second slider is fixedly connected to the second connecting plate, a second guide groove is provided inside the upper part of the second connecting plate, a third guide rod is provided on the inner side of the second guide groove, and the third guide rod is connected to the second guide rod in a fixed connection manner, the lower end of the second guide groove is connected with the third guide groove, the upper end of the third guide groove is connected with the upper end of the second guide groove, the upper vertex of the third guide groove and the lower end of the second guide groove is connected closer to the central axis of the second connecting plate than the lower vertex of the connection, and a fourth baffle is rotatably connected to the upper end connection of the second guide groove and the third guide groove.

[0013] Preferably, the appearance structure of the guide hole is a horizontal straight line, and the upper and lower inner side surfaces of the guide hole are in contact with the outer side surface of the second guide rod, and the appearance structure shape of the second guide rod is a rectangular parallelepiped.

[0014] Preferably, the width of the upper end of the second slide groove is greater than the width of the lower end of the second slide groove, and the appearance structure shape of the second slide groove is an arc shape.

[0015] Preferably, the appearance structural shapes of the upper and lower ends of the second guide groove are vertical straight lines, and the appearance structural shape of the middle end of the second guide groove is an inclined straight line, and the cooperation mode between the second guide groove and the third guide rod is a clearance cooperation.

[0016] Preferably, the elastic component includes a third connecting plate fixedly connected to the bottom of the second guide rod, a third slide groove is provided inside the bottom of the second connecting plate, a third sliding block is provided on the inner side of the third slide groove, the width of the third sliding block away from the end of the hydraulic connection box is greater than the width of the third sliding block close to the hydraulic connection box, the end of the third sliding block close to the hydraulic connection box is fixedly connected to the first baffle, a third groove is provided on the inner side of the first baffle, the third connecting plate is nested on the inner side of the third groove, a second baffle is provided at one end of the first baffle close to the hydraulic connection box, a fourth slide groove is provided on the inner side of the second baffle, a fourth sliding block is provided on the inner side of the fourth slide groove, the width of the fourth sliding block close to the end of the hydraulic connection box is greater than the width of the fourth sliding block away from the end of the hydraulic connection box, the fourth sliding block is connected to the second baffle in a fixed manner, an elastic telescopic rod is fixedly connected to the inner side of the first baffle, and the other end of the elastic telescopic rod is fixedly connected to the third baffle.

[0017] Preferably, the inner side surface of the third groove fits with the outer side surface of the third connecting plate, and the appearance structure of the third connecting plate is a rectangular parallelepiped.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] The present invention provides a stone crushing device for road engineering construction. The device is provided with a rotating mechanism and a pushing mechanism, so that when the hydraulic rod moves downward, the rotating mechanism and the pushing mechanism are driven to move downward. After the rotating mechanism moves to a certain distance, the pushing mechanism clamps and rotates, so that the stone can be rotated before being crushed. Compared with the prior art, it is not necessary to rotate the stone manually, thereby achieving the purpose of saving manpower. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention;

[0021] Figure 2 It is a schematic diagram of the front structure of the first support plate of the present invention;

[0022] Figure 3 It is a schematic diagram of the left-side cross-sectional structure of the support tube of the present invention;

[0023] Figure 4 It is a schematic diagram of the right side cross-sectional structure of the first support plate of the present invention;

[0024] Figure 5 For the present invention Figure 2 Schematic diagram of the structure at A in the middle;

[0025] Figure 6 For the present invention Figure 4 Schematic diagram of the structure at point B in the middle.

[0026] In the figure: 1, trolley body; 2, hydraulic connection box; 3, first support plate; 4, hydraulic press; 5, hydraulic rod; 6, crushing knife; 7, rotating mechanism; 8, pushing mechanism; 81, sliding assembly; 82, elastic assembly; 701, supporting cylinder; 702, first groove; 703, first hole; 704, first guide groove; 705, first guide rod; 706, second groove; 707, rotating disk; 708, connecting rod; 709, second hole; 8101, first connecting plate; 8102, guide hole; 8103, first slide groove; 8104, first A slider; 8105, a second guide rod; 8106, a second slide groove; 8107, a second slider; 8108, a second connecting plate; 8109, a second guide groove; 8110, a third guide rod; 8111, a third guide groove; 8112, a fourth baffle; 8201, a third connecting plate; 8202, a third slide groove; 8203, a third slider; 8204, a first baffle; 8205, a third groove; 8206, a second baffle; 8207, a fourth slide groove; 8209, a fourth slider; 8208, an elastic telescopic rod; 8210, a third baffle. DETAILED DESCRIPTION

[0027] 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0028] See also Figure 1-Figure 6 The present invention provides a technical solution: a stone crushing device for road engineering construction, comprising a cart body 1, a hydraulic connection box 2 fixedly connected to the middle of the top of the cart body 1, a first support plate 3 fixedly connected to one side of the top of the cart body 1, a hydraulic press 4 fixedly connected to the top of the first support plate 3, a hydraulic rod 5 fixedly connected to the output end of the hydraulic press 4, a crushing knife 6 fixedly connected to the lower end of the hydraulic rod 5, a rotating mechanism 7 is arranged below the side of the first support plate 3 away from the hydraulic connection box 2, and a pushing mechanism 8 is arranged below the rotating mechanism 7;

[0029] The pushing mechanism 8 includes a sliding component 81 and an elastic component 82, and the elastic component 82 is arranged below the sliding component 81;

[0030] The rotating mechanism 7 includes a support cylinder 701 fixedly connected to the lower side of the first support plate 3 away from the hydraulic connection box 2, a first groove 702 is provided on the inner side of the support cylinder 701, and the hydraulic rod 5 is nested in the inner side of the first groove 702. The inner wall of the first groove 702 close to the hydraulic connection box 2 is connected with a first hole 703, and the inner wall of the first groove 702 away from the hydraulic connection box 2 is connected with a first guide groove 704. A first guide rod 705 is arranged on the inner side of the first guide groove 704. The upper and lower ends of the first guide groove 704 have a vertical straight line appearance, and the middle end of the first guide groove 704 has a spiral appearance, and the first guide groove 704 and the first guide groove 704 are connected. The matching mode of the guide rod 705 is a clearance match, so that when the first guide rod 705 moves inside the upper and lower ends of the first guide groove 704, the first guide rod 705 will not rotate, and when the first guide rod 705 moves inside the first guide groove 704, the first guide rod 705 can move, and the hydraulic rod 5 is provided with a second groove 706 inside, and a rotating disk 707 is provided inside the second groove 706. The inner side surface of the first groove 702 is fitted with the outer side surface of the rotating disk 707, and the appearance structure shape of the rotating disk 707 is cylindrical, so that the rotating disk 707 rotates inside the first groove 702 without shaking, and the rotating disk 707 and the first The connection mode of the guide rod 705 is fixed connection, a connecting rod 708 is arranged on the inner side of the second groove 706, the connection mode of the connecting rod 708 and the rotating disk 707 is fixed connection, a second hole 709 is arranged inside the rotating disk 707, the inner side surface of the second hole 709 is fitted with the outer side surface of the hydraulic rod 5, the appearance structure shape of the second hole 709 is circular, the inner side surface of the second groove 706 is fitted with the outer side surface of the rotating disk 707, the appearance structure shapes of the upper and lower ends of the first guide groove 704 are vertical straight lines, and the appearance structure of the middle end of the first guide groove 704 is spiral, and the matching mode of the first guide groove 704 and the first guide rod 705 is clearance matching, and the second The width of the hole 709 is greater than the width of the connecting rod 708, and the upper and lower heights of the second hole 709 are greater than the upper and lower heights of the connecting rod 708, so that the connecting rod 708 can rotate when moving inside the second hole 709, and the lower end of the second guide groove 8109 is connected to the third guide groove 8111, and the upper end of the third guide groove 8111 is connected to the upper end of the second guide groove 8109. The upper vertex of the connection between the third guide groove 8111 and the lower end of the second guide groove 8109 is closer to the central axis of the second connecting plate 8108 than the lower vertex of the connection, and the fourth baffle 8112 is rotatably connected to the upper end connection of the second guide groove 8109 and the third guide groove 8111.

[0031] The sliding assembly 81 includes a first connecting plate 8101 fixedly connected to the other end of the connecting rod 708, and a guide hole 8102 is provided on the inner side of the first connecting plate 8101. The appearance structure of the guide hole 8102 is a horizontal straight line, and the upper and lower inner side surfaces of the guide hole 8102 are in contact with the outer side surface of the second guide rod 8105, and the appearance structure shape of the second guide rod 8105 is a rectangular parallelepiped, so that the second guide rod 8105 does not rotate when moving inside the guide hole 8102. The upper and lower inner walls of the guide hole 8102 are connected to the outer side surface of the second guide rod 8105. There is a first slide groove 8103, the central axis of the first slide groove 8103 is parallel to the central axis of the guide hole 8102, a first slider 8104 is arranged on the inner side of the first slide groove 8103, a second guide rod 8105 is arranged on the inner side of the guide hole 8102, the second guide rod 8105 is connected to the first slider 8104 in a fixed connection, a second slide groove 8106 is arranged inside the side of the first support plate 3 away from the hydraulic connection box 2, a second slider 8107 is arranged on the inner side of the second slide groove 8106, and the upper end of the second slide groove 8106 is The width of the second slide groove 8106 is greater than the width of the lower end of the second slide groove 8106, and the appearance structure of the second slide groove 8106 is an arc shape, so that the second slider 8107 can rotate inside the second slide groove 8106, but will not move out of the inner side of the second slide groove 8106. The lower end of the second slider 8107 is fixedly connected to the second connecting plate 8108, and the upper inner part of the second connecting plate 8108 is provided with a second guide groove 8109. The inner side of the second guide groove 8109 is provided with a third guide rod 8110, and the third guide rod 8110 and the second guide rod The connection method of 8105 is a fixed connection, the appearance structural shape of the upper and lower ends of the second guide groove 8109 is a vertical straight line shape, and the appearance structural shape of the middle end of the second guide groove 8109 is an inclined straight line shape, and the cooperation method between the second guide groove 8109 and the third guide rod 8110 is a clearance cooperation, so that the third guide rod 8110 will not move laterally when moving on the inner side of the upper and lower ends of the second guide groove 8109, and will move laterally when moving on the inner side of the middle end of the second guide groove 8109.

[0032] The elastic component 82 includes a third connecting plate 8201 fixedly connected to the lower part of the second guide rod 8105, a third slide groove 8202 is provided inside the lower part of the second connecting plate 8108, a third slider 8203 is provided on the inner side of the third slide groove 8202, the width of the third slider 8203 away from the end of the hydraulic connection box 2 is greater than the width of the third slider 8203 close to the end of the hydraulic connection box 2, the end of the third slider 8203 close to the hydraulic connection box 2 is fixedly connected to the first baffle 8204, the inner side of the first baffle 8204 is provided with a third groove 8205, the third connecting plate 8201 is nested in the inner side of the third groove 8205, the end of the first baffle 8204 close to the hydraulic connection box 2 is provided with a second baffle 8206, the second baffle 8206 A fourth slide groove 8207 is provided on the inner side, and a fourth slider 8209 is provided on the inner side of the fourth slide groove 8207. The width of the fourth slider 8209 close to the hydraulic connection box 2 is greater than the width of the fourth slider 8209 away from the hydraulic connection box 2. The fourth slider 8209 is connected to the second baffle 8206 in a fixed connection. An elastic telescopic rod 8208 is fixedly connected to the inner side of the first baffle 8204, and the other end of the elastic telescopic rod 8208 is fixedly connected to the third baffle 8210. The inner side surface of the third groove 8205 is fitted with the outer side surface of the third connecting plate 8201, and the appearance structure of the third connecting plate 8201 is a rectangular parallelepiped, so that the third connecting plate 8201 will not move up and down when it moves vertically inside the third groove 8205.

[0033] When the stone is crushed, the hydraulic press 4 is started to drive the hydraulic rod 5 to move downward, thereby driving the rotating disk 707 arranged inside the second groove 706 to move downward, so that the first guide rod 705 and the connecting rod 708 move downward. Since the upper and lower ends of the first guide groove 704 have a vertical straight line shape, the first guide rod 705 does not rotate when it moves downward at the beginning, so that the connecting rod 708 drives the first connecting plate 8101 and the guide hole 8102 to move downward, so that the second guide rod 8105 and the third guide rod 8108 move downward. The connection mode of 110 is a fixed connection, so that the third guide rod 8110 moves downward. Since the appearance structure shapes of the upper and lower ends of the second guide groove 8109 are vertical straight lines, and the appearance structure shape of the middle end of the second guide groove 8109 is an inclined straight line, and the cooperation mode of the second guide groove 8109 and the third guide rod 8110 is a clearance cooperation, when the third guide rod 8110 moves to the middle end of the second guide groove 8109, it drives the second guide rod 8105 and the third guide rod 8110 to move toward the middle along the trajectory of the guide hole 8102. The second guide rod 8105 is connected to the third connecting plate 8201 in a fixed connection. The third connecting plate 8201 is nested in the inner side of the third groove 8205, so that the third connecting plate 8201 drives the first baffle plate 8204 to move toward the middle, so that the elastic telescopic rod 8208 and the third baffle plate 8210 move toward the middle to clamp the stone. At this time, the first guide rod 705 continues to move downward to the middle end position of the first guide groove 704, so that the rotating disk 707, the connecting rod 708, the first connecting plate 8101, the first slider 8104, the second guide The rod 8105, the third guide rod 8110, the second connecting plate 8108 and the second slider 8107 rotate along the trajectory of the second slide groove 8106, so that the third connecting plate 8201, the elastic telescopic rod 8208, the third baffle 8210 and the first baffle 8204 rotate, so that the third baffle 8210 can drive the stone to rotate. When the third guide rod 8110 moves back, it can move along the trajectory of the third guide groove 8111 so that the third baffle 8210 can loosen the stone and rotate without the stone, so that the crushing is more uniform and manpower is saved.

[0034] When the third baffle 8210 clamps the stone, the third baffle 8210 is very close to the stone to be broken, and the distance between them is short, which can slow down the speed of stone splashing or directly block the splashing stone, making the crushing environment safer.

[0035] When the hydraulic rod 5 moves down once, the third baffle 8210 will clamp the stone and rotate it once, so as to avoid the situation that the stone rotates an indefinite number of times without being crushed once, and the rotation is more regular and even.

[0036] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A stone crushing device for road engineering construction, comprising a cart body (1), a hydraulic connection box (2) fixedly connected to the middle of the top of the cart body (1), a first support plate (3) fixedly connected to one side of the top of the cart body (1), a hydraulic press (4) fixedly connected to the top of the first support plate (3), a hydraulic rod (5) fixedly connected to the output end of the hydraulic press (4), and a crushing knife (6) fixedly connected to the lower end of the hydraulic rod (5), characterized in that: A rotating mechanism (7) is provided below a side of the first support plate (3) away from the hydraulic connection box (2), and a pushing mechanism (8) is provided below the rotating mechanism (7); The pushing mechanism (8) comprises a sliding component (81) and an elastic component (82), wherein the elastic component (82) is arranged below the sliding component (81); The rotating mechanism (7) comprises a supporting tube (701) fixedly connected to the lower side of the first supporting plate (3) away from the hydraulic connection box (2); a first groove (702) is provided on the inner side of the supporting tube (701); the hydraulic rod (5) is nested in the inner side of the first groove (702); a first hole (703) is connected to the inner wall of the first groove (702) on the side close to the hydraulic connection box (2); a first guide groove (704) is connected to the inner wall of the first groove (702) on the side away from the hydraulic connection box (2); a first guide rod (705) is provided on the inner side of the first guide groove (704); a second groove is provided inside the hydraulic rod (5); (706), a rotating disk (707) is arranged on the inner side of the second groove (706), and the rotating disk (707) is connected to the first guide rod (705) in a fixed manner, a connecting rod (708) is arranged on the inner side of the second groove (706), and the connecting rod (708) is connected to the rotating disk (707) in a fixed manner, a second hole (709) is arranged inside the rotating disk (707), and the inner side surface of the second hole (709) is in contact with the outer side surface of the hydraulic rod (5), the appearance structure shape of the second hole (709) is circular, and the inner side surface of the second groove (706) is in contact with the outer side surface of the rotating disk (707).

2. A stone crushing device for road engineering construction according to claim 1, characterized in that: The inner side surface of the first groove (702) fits the outer side surface of the rotating disk (707), and the outer structural shape of the rotating disk (707) is cylindrical.

3. The stone crushing device for road engineering construction according to claim 1, characterized in that: The upper and lower ends of the first guide groove (704) have a vertical straight line appearance, and the middle end of the first guide groove (704) has a spiral appearance. The first guide groove (704) and the first guide rod (705) are matched in a clearance fit.

4. The stone crushing device for road engineering construction according to claim 1, characterized in that: The width of the second hole (709) is greater than the width of the connecting rod (708), and the upper and lower heights of the second hole (709) are greater than the upper and lower heights of the connecting rod (708).

5. The stone crushing device for road engineering construction according to claim 1, characterized in that: The sliding assembly (81) includes a first connecting plate (8101) fixedly connected to the other end of the connecting rod (708), a guide hole (8102) is arranged on the inner side of the first connecting plate (8101), the upper and lower inner walls of the guide hole (8102) are connected with a first slide groove (8103), the central axis of the first slide groove (8103) is parallel to the central axis of the guide hole (8102), a first slider (8104) is arranged on the inner side of the first slide groove (8103), a second guide rod (8105) is arranged on the inner side of the guide hole (8102), the second guide rod (8105) and the first slider (8104) are connected in a fixed manner, a second slide groove (8106) is arranged inside the side of the first support plate (3) away from the hydraulic connection box (2), a second slider (8107) is arranged on the inner side of the second slide groove (8106), and the second slider (8108) is arranged on the inner side of the second slide groove (8108). The lower end of the block (8107) is fixedly connected to a second connecting plate (8108), a second guide groove (8109) is arranged inside the upper part of the second connecting plate (8108), a third guide rod (8110) is arranged on the inner side of the second guide groove (8109), the third guide rod (8110) is connected to the second guide rod (8105) in a fixed manner, the lower end of the second guide groove (8109) is connected to a third guide groove (8111), the upper end of the third guide groove (8111) is connected to the upper end of the second guide groove (8109), the upper vertex of the connection between the third guide groove (8111) and the lower end of the second guide groove (8109) is closer to the central axis of the second connecting plate (8108) than the lower vertex of the connection, and a fourth baffle (8112) is rotatably connected to the upper end connection of the second guide groove (8109) and the third guide groove (8111).

6. A stone crushing device for road engineering construction according to claim 5, characterized in that: The appearance structure of the guide hole (8102) is a horizontal straight line, and the upper and lower inner side surfaces of the guide hole (8102) are in contact with the outer side surface of the second guide rod (8105), and the appearance structure shape of the second guide rod (8105) is a rectangular parallelepiped.

7. The stone crushing device for road engineering construction according to claim 5, characterized in that: The width of the upper end of the second slide groove (8106) is greater than the width of the lower end of the second slide groove (8106), and the appearance and structural shape of the second slide groove (8106) is an arc shape.

8. The stone crushing device for road engineering construction according to claim 5, characterized in that: The appearance structural shapes of the upper and lower ends of the second guide groove (8109) are vertical straight lines, and the appearance structural shape of the middle end of the second guide groove (8109) is an inclined straight line, and the cooperation mode between the second guide groove (8109) and the third guide rod (8110) is a clearance cooperation.

9. The stone crushing device for road engineering construction according to claim 1, characterized in that: The elastic component (82) includes a third connecting plate (8201) fixedly connected to the bottom of the second guide rod (8105); a third slide groove (8202) is provided inside the bottom of the second connecting plate (8108); a third slider (8203) is provided inside the third slide groove (8202); the width of the third slider (8203) at the end away from the hydraulic connection box (2) is greater than the width of the third slider (8203) at the end close to the hydraulic connection box (2); the end of the third slider (8203) close to the hydraulic connection box (2) is fixedly connected to the first baffle (8204); a third groove (8205) is provided inside the first baffle (8204); the third connecting plate (8201) is nested in the third groove (8205) ), a second baffle (8206) is arranged on the inner side of the first baffle (8204) at one end close to the hydraulic connection box (2), a fourth slide groove (8207) is arranged on the inner side of the second baffle (8206), a fourth slider (8209) is arranged on the inner side of the fourth slide groove (8207), the width of the fourth slider (8209) close to the hydraulic connection box (2) is greater than the width of the fourth slider (8209) away from the hydraulic connection box (2), the fourth slider (8209) and the second baffle (8206) are connected in a fixed manner, an elastic telescopic rod (8208) is fixedly connected to the inner side of the first baffle (8204), and the other end of the elastic telescopic rod (8208) is fixedly connected to the third baffle (8210).

10. A stone crushing device for road engineering construction according to claim 9, characterized in that: The inner side surface of the third groove (8205) is in contact with the outer side surface of the third connecting plate (8201), and the appearance structure of the third connecting plate (8201) is a rectangular parallelepiped.

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