A stone spreading apparatus

Abstract

The application relates to a stone spreading device and relates to the technical field of road construction. The stone spreading device comprises an open-side storage tank and a sliding assembly. The sliding assembly is used for driving the storage tank to move along the road surface. The bottom wall of the storage tank is provided with a discharge port. The outer bottom wall of the storage tank is slidably connected with a shielding plate. The shielding plate is used for opening and closing the discharge port. The storage tank is provided with a driving piece used for driving the shielding plate to move. The application has the effect of improving the construction efficiency of the road surface with a relatively narrow width.

Description

TECHNICAL FIELD

[0001] The present application relates to the road construction technical field, especially to a stone spreading equipment. BACKGROUND

[0002] In the process of road construction, the asphalt pavement can have better anti-skid and anti-seepage performance after synchronous macadam seal coat. The synchronous macadam seal coat technology is to spread the macadam and the binding material on the road surface at the same time, and to form a single-layer asphalt macadam wearing layer by natural rolling, which is used as the surface layer of the road surface.

[0003] The current seal coat spreading equipment generally includes a vehicle body, a water spraying device is installed at the front end of the vehicle body, an interface agent spraying device is installed at the middle part of the vehicle body, an asphalt spraying device and a stone spreading device are installed at the rear part of the vehicle body, the asphalt spraying device includes front and rear two spraying parts, the stone spreading device is located between the front and rear two spraying parts of the asphalt spraying device, and a protective agent spraying device is installed at the tail end of the vehicle body. During construction, along the driving direction, the water spraying device at the front end of the vehicle body first sprays clean water on the road surface, at the same time, the interface agent spraying device at the middle part of the device sprays the interface agent, the asphalt spraying device sprays a layer of asphalt binder on the road surface, and then the stone spreading device uniformly spreads the macadam on the asphalt film on the road surface, and finally the protective agent spraying device uniformly spreads a layer of protective agent on the material surface on the road surface.

[0004] For the related technology in the above, the automobile drives along the road surface to spread the macadam and the binding material on the road surface at the same time. However, for the road surface with a width less than the width of the automobile, the automobile cannot drive along the road surface to spread the macadam and the binding material on the road surface at the same time. At this time, the workers need to manually spread the macadam and the binding material by using a shovel, which easily leads to a long time consumption of the road seal coat, and further leads to a low road construction efficiency. SUMMARY

[0005] In order to improve the construction efficiency of the road surface with a narrow width, the present application provides a stone spreading equipment.

[0006] The stone spreading equipment provided by the present application adopts the following technical scheme:

[0007] A stone spreading equipment includes a one-side open storage tank and a sliding assembly. The sliding assembly is used to drive the storage tank to move along the road surface. The bottom wall of the storage tank is provided with a discharge port. The outer bottom wall of the storage tank is slidingly connected with a shielding plate. The shielding plate is used to open and close the discharge port. The storage tank is provided with a driving member for driving the shielding plate to move.

[0008] Through the above technical scheme, the staff manually pushes the storage box along the road surface through the sliding assembly, and drives the shielding plate to move along the outer bottom wall of the storage box through the driving piece during the movement, so that the discharge port is opened, and then the gravel is spread on the road surface. The above-mentioned spreading device can be applied to a road surface with a relatively narrow width, and the construction efficiency of the road surface with a relatively narrow width is effectively improved.

[0009] Preferably, the driving piece comprises a first connecting rod, a second connecting rod, a handle, a dovetail block and a first elastic piece. The first connecting rod is rotationally connected to one side of the shielding plate away from the storage box. The second connecting rod is rotationally connected to one end of the first connecting rod away from the shielding plate. The second connecting rod is rotationally connected to the outer side wall of the storage box away from the first connecting rod. The handle is arranged at one end of the second connecting rod away from the first connecting rod. The dovetail block is arranged at one side of the shielding plate close to the storage box. The outer side wall of the storage box is provided with a dovetail groove for the sliding of the dovetail block. The first elastic piece is arranged on the side wall of the dovetail block. One end of the first elastic piece away from the dovetail block is arranged on the inner wall of the dovetail groove.

[0010] Through the above technical scheme, the staff moves the handle towards one side of the storage box to make the handle rotate, and the handle drives the second connecting rod to rotate, and the second connecting rod drives the dovetail block to move along the length direction of the inner wall of the dovetail groove through the shielding plate. At this time, the first elastic piece is compressed to realize that the shielding plate is separated from the shielding of the discharge port, so that the discharge port is in an open state. When the staff releases the handle, the first elastic piece rebounds to make the dovetail block reset, so as to realize the shielding of the discharge port by the shielding plate, and then the discharge port is in a closed state.

[0011] Preferably, the inner wall of the storage box at the discharge port is provided with a mounting groove. The inner wall of the mounting groove is rotationally connected with a anti-blocking rod. The anti-blocking rod is arranged at the inner wall of the discharge port. A rotating piece is arranged on the storage box. The rotating piece is used to drive the anti-blocking rod to rotate.

[0012] Through the above technical scheme, the rotation of the rotating piece drives the anti-blocking rod to rotate, so as to push the stones of the discharge port out of the discharge port through the anti-blocking rod, thereby reducing the possibility that the gravel is stuck in the discharge port.

[0013] Preferably, the sliding assembly comprises a support frame, a mounting rod and sliding wheels. The support frame is arranged on the bottom wall of the storage box. The mounting rod is rotationally connected to the support frame. Each of the sliding wheels is arranged on the mounting rod. The rotating piece comprises a rotating rod, a belt and two belt pulleys. The rotating rod is arranged at the end of the anti-blocking rod. One end of the rotating rod away from the anti-blocking rod penetrates through the side wall of the storage box. One of the belt pulleys is arranged on the rotating rod. The other belt pulley is arranged on the mounting rod. The belt is sleeved on the two belt pulleys.

[0014] By adopting the above technical scheme, when the staff pushes the storage box to move by means of the sliding wheel, the mounting rod is rotated to make the belt pulley on the mounting rod rotate, so as to drive the belt pulley on the anti-blocking rod to rotate through the belt, thereby driving the anti-blocking rod to rotate.

[0015] As a preferred, the inner wall of the discharge port of the storage box is provided with an auxiliary groove, the inner wall of the auxiliary groove is rotatably connected with an auxiliary rod, the mounting rod and the auxiliary rod are correspondingly arranged on the two sides of the inner wall of the discharge port, the mounting rod and the auxiliary rod are both provided with a connecting gear, and the two connecting gears are meshed with each other.

[0016] By adopting the above technical scheme, when the anti-blocking rod rotates, the connecting gear on the anti-blocking rod drives the connecting gear on the auxiliary rod to rotate, so that the anti-blocking rod and the auxiliary rod move towards each other, thereby further reducing the possibility of the gravel being stuck at the discharge port.

[0017] As a preferred, the storage box is provided with a guide plate, the guide plate is arranged on the outer side wall of the storage box and close to the discharge port, and the guide plate is used for guiding the falling gravel at the discharge port.

[0018] By adopting the above technical scheme, the guide plate is arranged, on the one hand, the falling gravel at the discharge port is guided by the guide plate, and on the other hand, the gravel is shielded by the guide plate.

[0019] As a preferred, the inner wall of the guide plate is provided with a moving groove, the inner wall of the moving groove is slidably connected with a fixing rod, the storage box is provided with a fixing groove for the end of the fixing rod to be inserted, the guide plate is provided with a control member, and the control member is used for driving the fixing rod to move along the length direction of the inner wall of the moving groove.

[0020] By adopting the above technical scheme, the control member drives the fixing rod to move along the length direction of the inner wall of the moving groove, so that the end of the fixing rod is inserted into the inner wall of the fixing groove, thereby fixing the guide plate on the storage box, and when the guide plate is damaged, the guide plate can be quickly and conveniently replaced.

[0021] Preferably, the control member comprises a connecting rod, a first gear, a first rack, a second gear, a second rack, a control rod and a second elastic member, the guide plate is internally provided with a receiving cavity, the connecting rod is rotationally connected to the inner wall of the receiving cavity, the first gear is arranged on the connecting rod, the first gear and the first rack are in meshing engagement, the first rack is arranged on the side wall of the fixed rod, the second gear is arranged on the connecting rod, the second rack and the second gear are in meshing engagement, the second rack is arranged on the side wall of the control rod, the inner wall of the guide plate is provided with a control groove for the sliding of the control rod, the second elastic member is sleeved on the control rod, one end of the second elastic member is arranged on the side wall of the control rod, and the other end of the second elastic member is arranged on the guide plate.

[0022] By adopting the above technical scheme, the control rod moves along the length of the control groove inner wall to drive the connecting rod to rotate through the meshing engagement of the second rack and the second gear, and the fixed rod moves along the length direction of the moving groove inner wall through the meshing engagement of the first rack and the first gear, and the stability of the control rod in the control groove inner wall is improved by the second elastic member, thereby improving the stability of the end of the fixed rod inserted into the fixed groove inner wall.

[0023] Preferably, the inner bottom wall of the storage box is rotationally connected with a push plate, one end of the push plate away from the inner wall of the discharge port is rotationally connected with a fixed plate, the fixed plate is slidingly connected with an adjusting sleeve plate, one end of the adjusting sleeve plate away from the fixed plate is rotationally connected to the inner wall of the storage box, and the storage box is provided with a lifting member for driving the push plate to rotate.

[0024] By adopting the above technical scheme, the lifting member drives the push plate to rotate, so that the adjusting sleeve plate moves along the fixed plate, thereby reducing the possibility that the inner wall of the storage box is left with gravel.

[0025] Preferably, the lifting member comprises a motor, a lead screw, a sliding block and a lifting rod, the inner bottom wall of the storage box is provided with a sliding groove for the sliding of the sliding block, the motor is arranged on the inner wall of the sliding groove, the output end of the motor is connected to the lead screw, the sliding block is threadedly connected to the lead screw, the lifting rod is rotationally connected to the sliding block, and one end of the lifting rod away from the sliding block is rotationally connected to the side of the push plate close to the support frame.

[0026] By adopting the above technical scheme, the motor drives the lead screw to rotate, so that the sliding block moves along the length direction of the sliding groove inner wall, thereby causing the lifting rod to rotate, and further causing the push plate to rotate, thereby effectively reducing the possibility that the inner wall of the storage box is left with gravel.

[0027] In summary, the present application has at least one of the following beneficial technical effects:

[0028] 1. Workers manually push the storage bin along the road surface using a sliding component. During the movement, a drive unit drives a baffle plate to move along the bottom wall of the storage bin, thereby opening the discharge port and spreading the crushed stone on it. The above-mentioned spreading equipment is suitable for narrow roads and effectively improves the construction efficiency of narrow roads.

[0029] 2. The rotation of the rotating part causes the anti-blocking rod to rotate, which pushes the stone material out of the discharge port through the anti-blocking rod, thereby reducing the possibility of the crushed stone getting stuck at the discharge port. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the overall structure of a stone spreading device according to an embodiment of this application.

[0031] Figure 2 This is a cross-sectional view used in the embodiments of this application to illustrate the internal structure of the box.

[0032] Figure 3 yes Figure 2 Enlarged view of structure A in the middle.

[0033] Figure 4 This is a schematic diagram illustrating the connection structure between the anti-blocking rod and the auxiliary rod in the embodiments of this application.

[0034] Figure 5 yes Figure 4 Enlarged view of the B structure.

[0035] Figure 6 This is a cross-sectional view used in the embodiments of this application to illustrate the internal structure of the guide plate.

[0036] Explanation of reference numerals in the attached figures:

[0037] 1. Storage bin; 11. Discharge port; 111. Baffle plate; 12. Dovetail groove; 13. Mounting groove; 131. Anti-blocking rod; 14. Auxiliary groove; 141. Auxiliary rod; 15. Connecting gear; 16. Fixed groove; 17. Sliding groove; 18. Assist rod; 2. Sliding assembly; 21. Support frame; 22. Mounting rod; 23. Sliding wheel; 3. Drive component; 31. First connecting rod; 32. Second connecting rod; 33. Grip rod; 34. Dovetail block; 35. First elastic element; 4. Rotating component; 41. Rotating rod; 42. Belt; 43. Pulley; 5. Guide plate; 51. Moving groove; 511. Fixed rod; 52. Receiving cavity; 53. Control groove; 6. Control component; 61. Connecting rod; 62. First gear; 63. First rack; 64. Second gear; 65. Second rack; 66. Control rod; 67. Second elastic element; 7. Push plate; 71. Fixed plate; 711. Adjusting sleeve plate; 8. Lifting component; 81. Motor; 82. Lead screw; 83. Sliding block; 84. Lifting rod. DETAILED DESCRIPTION

[0038] The application will be further described in detail below. Figures 1-6 The application will be further described in detail below.

[0039] The application discloses a stone spreading equipment. Referring to Figure 1 and Figure 2 , the stone spreading equipment comprises a storage tank 1 with one side open, and a sliding assembly 2 for driving the storage tank 1 to move along the road surface; the bottom wall of the storage tank 1 is provided with a discharge port 11 in the width direction, and the outer bottom wall of the storage tank 1 is slidingly connected with a shielding plate 111 for opening and closing the discharge port 11; the storage tank 1 is provided with a driving member 3 for driving the shielding plate 111 to move along the bottom wall of the storage tank 1.

[0040] Referring to Figure 1 and Figure 3 , the driving member 3 is provided in two groups, and the two groups of driving members 3 are correspondingly arranged on the two sides of the storage tank 1; the two groups of driving members 3 synchronously drive the shielding plate 111 to move along the bottom wall of the storage tank 1. The driving member 3 comprises a first connecting rod 31, a second connecting rod 32, a handle 33, a dovetail block 34 and a first elastic member 35; the first connecting rod 31 is hinged to one side of the shielding plate 111 away from the storage tank 1, the second connecting rod 32 is hinged to one end of the first connecting rod 31 away from the shielding plate 111, and the other end of the second connecting rod 32 away from the first connecting rod 31 is rotatably connected to the outer side wall of the storage tank 1 through a rotating shaft; the handle 33 is welded to the other end of the second connecting rod 32 away from the first connecting rod 31, the dovetail block 34 is integrally formed on one side of the shielding plate 111 close to the storage tank 1, the outer bottom wall of the storage tank 1 is provided with a dovetail groove 12 for the sliding of the dovetail block 34 in the length direction, one end of the first elastic member 35 is welded to the side wall of the dovetail block 34, and the other end of the first elastic member 35 is welded to the inner wall of the dovetail groove 12; in the application, the first elastic member 35 is a spring.

[0041] Referring to Figure 1 , the outer side wall of the storage tank 1 is welded with two booster rods 18, and the booster rods 18 and the handles 33 are correspondingly arranged, and the booster rods 18 are located on the upper side corresponding to the handles 33.

[0042] Referring to Figure 1 , Figure 2 and Figure 3When the worker needs to open the discharge port 11 to enable the stone spreading device to perform the spreading operation, the worker places both hands on the two booster rods 18; the worker moves the handle 33 towards the side close to the corresponding booster rod 18 by the hand force, so that the second connecting rod 32 rotates, and the second connecting rod 32 drives the dovetail block 34 to move along the length direction of the inner wall of the dovetail groove 12; so that the baffle 111 is separated from the discharge port 11, and the first elastic member 35 is compressed at this time, so that the discharge port 11 is in an open state, and then when the storage box 1 moves along the road under the action of the sliding assembly 2, the road surface is spread. If the worker releases the handle 33, the first elastic member 35 rebounds, so that the baffle 111 moves towards the side of the discharge port 11, until the dovetail block 34 moves to the end of the inner wall of the dovetail groove 12 close to the discharge port 11, so as to achieve the shielding of the baffle 111 to the discharge port 11.

[0043] Referring to Figure 2 , the sliding assembly 2 comprises a support frame 21, a mounting rod 22 and a sliding wheel 23, the support frame 21 is welded to the outer bottom wall of the storage box 1, and the mounting rod 22 is rotatably connected to the support frame 21 by a bearing; the sliding wheel 23 is provided at least two, and the sliding wheel 23 is provided with two in the embodiment of the application, and the two sliding wheels 23 are symmetrically welded to the two ends of the mounting rod 22, so that the worker manually pushes the storage box 1, so that the storage box 1 moves along the road surface under the action of the sliding wheel 23.

[0044] Referring to Figure 1 , the storage box 1 is provided with a rotating member 4, the rotating member 4 comprises a rotating rod 41, a belt 42 and two belt pulleys 43; the rotating rod 41 is rotatably connected to the storage box 1 by a bearing, the belt 42 is sleeved on the two belt pulleys 43, one belt pulley 43 is welded with the rotating rod 41, and the other belt pulley 43 is welded with the mounting rod 22.

[0045] Referring to Figure 1 and Figure 2 , the end of the rotating rod 41 penetrates the side wall of the storage box 1 and is welded with a anti-blocking rod 131, the inner wall of the discharge port 11 of the storage box 1 is provided with a mounting groove 13, the anti-blocking rod 131 is rotatably connected to the inner wall of the mounting groove 13 by a bearing, the inner wall of the discharge port 11 of the storage box 1 is provided with an auxiliary groove 14, the inner wall of the auxiliary groove 14 is rotatably connected with an auxiliary rod 141, and the mounting rod 22 and the auxiliary rod 141 are correspondingly arranged on the two sides of the inner wall of the discharge port 11.

[0046] Referring to Figure 4 , the end of the auxiliary rod 141 penetrates the side wall of the storage box 1, and the anti-blocking rod 131 and the auxiliary rod 141 are both welded with a connecting gear 15, and the two connecting gears 15 are meshed with each other.

[0047] With reference to Figure 1 , Figure 2 and Figure 4 , when the storage box 1 moves along the road surface under the action of the sliding wheel 23, the mounting rod 22 drives the rotating rod 41 to rotate through the interaction of the belt 42 and the pulley 43, the rotating rod 41 drives the anti-blocking rod 131 to rotate, the anti-blocking rod 131 moves towards the auxiliary rod 141 through the mutual meshing of the two connecting gears 15, so as to push the gravel at the discharge port 11 out of the discharge port 11, thereby reducing the possibility of gravel being stuck at the discharge port 11.

[0048] With reference to Figure 2 , the storage box 1 is provided with a guide plate 5, which is arranged on the outer side wall of the storage box 1 and close to the discharge port 11. The guide plate 5 is used for guiding the stone falling at the discharge port 11, and the guide plate 5 and the dovetail block 34 are symmetrically arranged on both sides of the inner wall of the discharge port 11.

[0049] With reference to Figure 5 and Figure 6 , the guide plate 5 is provided with a control piece 6, and the control piece 6 is provided with two groups, which are correspondingly arranged at both ends of the guide plate 5; the control piece 6 comprises a butt joint rod 61, a first gear 62, a first rack 63, a second gear 64, a second rack 65, a control rod 66 and a second elastic piece 67; the guide plate 5 is internally provided with a containing cavity 52, the butt joint rod 61 is rotatably connected to the inner wall of the containing cavity 52 through a bearing, the first gear 62 is integrally formed on the butt joint rod 61, the first gear 62 and the first rack 63 are mutually meshed, the second gear 64 is integrally formed on the butt joint rod 61, the second rack 65 and the second gear 64 are mutually meshed, and the second rack 65 is integrally formed on the side wall of the control rod 66; the side wall of the guide plate 5 is provided with a control groove 53 in the width direction for sliding of the control rod 66, the second elastic piece 67 is sleeved on the control rod 66, one end of the second elastic piece 67 is welded to the side wall of the control rod 66, and the other end of the second elastic piece 67 is welded to the side wall of the guide plate 5. In the embodiment of the application, the second elastic piece 67 is a spring.

[0050] With reference to Figure 6 , the side wall of the first rack 63 is integrally formed with a fixing rod 511, the end of the guide plate 5 is provided with a moving groove 51 in the length direction for sliding of the fixing rod 511, and the two sides of the storage box 1 are provided with a fixing groove 16 for insertion of the end of the fixing rod 511.

[0051] With reference to Figure 5 and Figure 6 ,When the staff member sticks both ends of the guide plate 5 to the outer side wall of the storage box 1, loosens the second elastic member 67 after stretching, the second elastic member 67 rebounds; so that the control rod 66 moves along the length direction of the inner wall of the control groove 53 towards the bottom wall close to the control groove 53; the control rod 66 drives the abutting rod 61 to move through the mutual engagement of the second rack 65 and the second gear 64, the abutting rod 61 drives the fixed rod 511 to move through the mutual engagement of the first rack 63 and the first gear 62; so that the fixed rod 511 moves along the length direction of the inner wall of the moving groove 51 towards the side close to the storage box 1, until the end of the fixed rod 511 is inserted into the inner wall of the fixed groove 16; so as to fix the guide plate 5 on the storage box 1, and then when the guide plate 5 is damaged, the guide plate 5 can be quickly and conveniently replaced.

[0052] With reference to Figure 2 The storage box 1 is provided with a lifting member 8, the lifting member 8 comprises a motor 81, a lead screw 82, a sliding block 83 and a lifting rod 84; the inner bottom wall of the storage box 1 is provided with a sliding groove 17 for the sliding block 83 to slide along the length direction, the motor 81 is connected to the inner wall of the sliding groove 17 through bolts, the output end of the motor 81 is connected to the lead screw 82, the sliding block 83 is threadedly connected to the lead screw 82, and the end of the lifting rod 84 is hinged to the sliding block 83, and the end away from the sliding block 83 of the lifting rod 84 is hinged with a push plate 7.

[0053] With reference to Figure 2 The end wall of the push plate 7 is rotationally connected to the inner bottom wall of the storage box 1 through a rotating shaft, the end away from the inner wall of the discharge port 11 of the push plate 7 is rotationally connected with a fixed plate 71 through a rotating shaft, a adjusting sleeve plate 711 is slidingly connected to the fixed plate 71, and the end away from the fixed plate 71 of the adjusting sleeve plate 711 is rotationally connected to the inner wall of the storage box 1. So that the motor 81 drives the lead screw 82 to rotate, so that the sliding block 83 moves along the length direction of the inner wall of the sliding groove 17, the sliding block 83 drives the lifting rod 84 to rotate, the lifting rod 84 drives the push plate 7 to rotate, the push plate 7 drives the adjusting sleeve plate 711 to move along the length direction of the fixed plate 71, and then the inclination angle of the push plate 7 and the inner bottom wall of the storage box 1 is adjusted, so that the material in the storage box 1 can be completely discharged from the discharge port 11.

[0054] The embodiment of the application discloses an implementation principle of a stone spreading device. When a worker needs to open the discharge port 11 to make the stone spreading device perform a spreading operation, the worker places hands on two booster rods 18, moves the holding rod 33 towards the side close to the corresponding booster rod 18 by hand strength, makes the second connecting rod 32 rotate, makes the swallow-tail block 34 move along the length direction of the inner wall of the swallow-tail groove 12 by the second connecting rod 32, makes the blocking plate 111 move away from the discharge port 11, and makes the first elastic member 35 compress, so that the discharge port 11 is in an open state.

[0055] Further push the storage box 1, make the storage box 1 move along the road under the action of the sliding wheel 23, make the mounting rod 22 rotate, make the rotating rod 41 rotate by the interaction of the belt 42 and the belt pulley 43, make the anti-blocking rod 131 rotate, make the anti-blocking rod 131 and the auxiliary rod 141 move towards each other by the mutual engagement of the two connecting gears 15, push the gravel at the discharge port 11 out of the discharge port 11, and further reduce the possibility of the gravel being stuck at the discharge port 11, so as to realize the spreading operation on the road.

[0056] The above are preferred embodiments of the application, and the protection scope of the application is not limited thereto. Any equivalent change made according to the structure, shape and principle of the application should be covered in the protection scope of the application.

Claims

1. A stone spreading device comprising a side-opened storage box (1) and a sliding assembly (2) for driving the storage box (1) to move along the road surface, characterized in that: The bottom wall of the storage box (1) is provided with a discharge port (11), and the outer bottom wall of the storage box (1) is slidably connected with a shielding plate (111), which is used to open and close the discharge port (11); the storage box (1) is provided with a driving member (3) for driving the shielding plate (111) to move; The driving member (3) comprises a first connecting rod (31), a second connecting rod (32), a handle rod (33), a dovetail block (34) and a first elastic member (35); the first connecting rod (31) is rotatably connected to one side of the shielding plate (111) away from the storage box (1); the second connecting rod (32) is rotatably connected to one end of the first connecting rod (31) away from the shielding plate (111); the second connecting rod (32) is rotatably connected to the outer side wall of the storage box (1) away from the first connecting rod (31); the handle rod (33) is arranged at one end of the second connecting rod (32) away from the first connecting rod (31); the dovetail block (34) is arranged on one side of the shielding plate (111) close to the storage box (1); the outer side wall of the storage box (1) is provided with a dovetail groove (12) for the sliding of the dovetail block (34); and the first elastic member (35) is arranged on the side wall of the dovetail block (34), and one end of the first elastic member (35) away from the dovetail block (34) is arranged on the inner wall of the dovetail groove (12).

2. A stone spreading apparatus according to claim 1, characterised in that: The inner wall of the discharge port (11) of the storage box (1) is provided with a mounting groove (13), and the inner wall of the mounting groove (13) is rotatably connected with an anti-blocking rod (131); the anti-blocking rod (131) is arranged at the inner wall of the discharge port (11); the storage box (1) is provided with a rotating member (4) for driving the anti-blocking rod (131) to rotate.

3. A stone spreading apparatus according to claim 2, characterised in that: The sliding assembly (2) comprises a support frame (21), a mounting rod (22) and sliding wheels (23); the support frame (21) is arranged on the bottom wall of the storage box (1); the mounting rod (22) is rotatably connected to the support frame (21); and the sliding wheels (23) are arranged on the mounting rod (22); the rotating member (4) comprises a rotating rod (41), a belt (42) and two belt pulleys (43); the rotating rod (41) is arranged at the end of the anti-blocking rod (131); one end of the rotating rod (41) away from the anti-blocking rod (131) penetrates through the side wall of the storage box (1); one of the belt pulleys (43) is arranged on the rotating rod (41); the other belt pulley (43) is arranged on the mounting rod (22); and the belt (42) is sleeved on the two belt pulleys (43).

4. A stone spreading apparatus according to claim 3, characterised in that: The inner wall of the discharge port (11) of the storage box (1) is provided with an auxiliary groove (14), and the inner wall of the auxiliary groove (14) is rotatably connected with an auxiliary rod (141); the mounting rod (22) and the auxiliary rod (141) are correspondingly arranged on the two sides of the inner wall of the discharge port (11); the mounting rod (22) and the auxiliary rod (141) are both provided with a connecting gear (15); and the two connecting gears (15) are meshed with each other.

5. A stone spreading apparatus according to claim 1, characterized in that: The guide plate (5) is arranged on the outer wall of the storage box (1) and is close to the discharge port (11), and the guide plate (5) is used for guiding the stone falling at the discharge port (11).

6. A stone spreading apparatus according to claim 5, characterised in that: The inner wall of the guide plate (5) is provided with a moving groove (51), and the fixed rod (511) is slidably connected to the inner wall of the moving groove (51). The storage box (1) is provided with a fixed groove (16) for inserting the end of the fixed rod (511). The guide plate (5) is provided with a control member (6), and the control member (6) is used for driving the fixed rod (511) to move along the length direction of the inner wall of the moving groove (51).

7. A stone spreading apparatus according to claim 6, characterised in that: The control member (6) includes a docking rod (61), a first gear (62), a first rack (63), a second gear (64), a second rack (65), a control rod (66), and a second elastic member (67). The inside of the guide plate (5) is provided with a receiving cavity (52), and the docking rod (61) is rotatably connected to the inner wall of the receiving cavity (52). The first gear (62) is arranged on the docking rod (61). The first gear (62) and the first rack (63) are in meshing relationship. The first rack (63) is arranged on the side wall of the fixed rod (511). The second gear (64) is arranged on the docking rod (61). The second rack (65) and the second gear (64) are in meshing relationship. The second rack (65) is arranged on the side wall of the control rod (66). The inner wall of the guide plate (5) is provided with a control groove (53) for sliding of the control rod (66). The second elastic member (67) is sleeved on the control rod (66). One end of the second elastic member (67) is arranged on the side wall of the control rod (66). The other end of the second elastic member (67) is arranged on the guide plate (5).

8. A stone spreading apparatus according to claim 1, characterized in that: The inner bottom wall of the storage box (1) is rotatably connected with a push plate (7), one end of the push plate (7) away from the inner wall of the discharge port (11) is rotatably connected with a fixed plate (71), the fixed plate (71) is slidably connected with an adjusting sleeve plate (711), one end of the adjusting sleeve plate (711) away from the fixed plate (71) is rotatably connected with the inner wall of the storage box (1), and the storage box (1) is provided with a lifting member (8). The lifting member (8) is used for driving the push plate (7) to rotate.

9. A stone spreading apparatus according to claim 8, characterised in that: The lifting member (8) includes a motor (81), a lead screw (82), a sliding block (83), and a lifting rod (84). The inner bottom wall of the storage box (1) is provided with a sliding groove (17) for sliding of the sliding block (83). The motor (81) is arranged on the inner wall of the sliding groove (17). The output end of the motor (81) is connected with the lead screw (82). The sliding block (83) is threadedly connected with the lead screw (82). The lifting rod (84) is rotatably connected with the sliding block (83). One end of the lifting rod (84) away from the sliding block (83) is rotatably connected with one side of the push plate (7) close to the support frame (21).

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