A stone conveying equipment for construction

Abstract

The present invention relates to the technical field of construction conveying equipment, and specifically to a stone conveying equipment for construction, comprising a conveying main body, on which a fixed roller and a rotating drum are provided, and further comprising: an adjustment assembly, the adjustment assembly comprising a fixed frame 1 and a fixed frame 2 arranged in parallel, an adjustment roller being rotatably mounted on the fixed frame 1, a sliding block being slidably mounted on the fixed frame 2, and a support plate being provided on the sliding block, and a connecting member 2 for toggling the adjustment roller to rotate on the sliding block; and a protective plate elastically mounted on both sides of the rotating drum, a tooth plate 1 inserted into the protective plate being slidably mounted on the support plate, an adjustment gear being rotatably mounted on the support plate, and a cam for toggling the tooth plate 1 from the protective plate being coaxially mounted on the adjusting gear. The present invention corrects a deviated conveyor belt by squeezing the protective plate and the rotating drum relative to each other, and the tooth plate 1 continues to move to cooperate with the retractable connecting member 2 and the connecting member 1 to adjust the rotation angle of the adjustment roller.

Description

Technical Field

[0001] The present invention relates to the technical field of construction conveying equipment, and in particular to a stone conveying equipment for construction. Background Art

[0002] During construction, stone is an indispensable basic material for all kinds of construction projects. Its transportation efficiency and quality are directly related to the progress and cost of the entire project. When transporting stone, belt conveyors have become one of the main equipment for stone transportation due to their significant advantages such as large transportation volume and strong continuous operation capability. They are widely used in many scenes such as construction sites and gravel yards.

[0003] During transportation, when stones fall from the loading point onto the belt, due to the irregular shapes and sizes of the stones themselves, and the difficulty in ensuring uniform distribution of the stones during loading, the stones exert uneven impact on the belt. This uneven impact and asymmetric stacking cause differences in the tension on both sides of the belt, which in turn causes the belt to deviate, making it easy for stones to spill from the edge of the belt, resulting in material leakage and increased production costs.

[0004] In the existing technology, in order to solve the problem of belt deviation, manual adjustment of the roller position is often used to correct the belt deviation. However, this method is not only inefficient, but also requires the operator to have rich experience and high skills. Due to the different heights of the conveyor frame, it will also increase the difficulty of correction calibration, resulting in low adjustment efficiency. Summary of the Invention

[0005] In view of the above-mentioned shortcomings of the prior art, the present invention provides a stone conveying equipment for construction. To achieve the above purpose, the present invention is implemented through the following technical solutions.

[0006] The present invention provides a stone conveying equipment for construction, including a conveying main body, which is provided with a fixed roller and a rotating drum, and also includes an adjusting component, the adjusting component including a fixed frame 1 and a fixed frame 2 arranged in parallel, the fixing frame 1 is rotatably mounted with an adjusting roller, the fixing frame 2 is slidably mounted with a sliding block, and a support plate is provided on the sliding block, the sliding block is provided with a connecting piece 2 for shifting the adjusting roller to rotate, and a protective plate elastically mounted on both sides of the rotating drum, a tooth plate 1 inserted into the protective plate is slidably mounted on the support plate, an adjusting gear is rotatably mounted on the support plate, and a cam for shifting the tooth plate 1 and separating it from the protective plate is coaxially mounted on the adjusting gear.

[0007] According to some embodiments of the present invention, a connector 1 is installed on the rotating shaft of the adjusting roller, one end of the connector 2 is rotatably set on the connector 1, and the other end is rotatably connected to the sliding block, and both the connector 1 and the connector 2 are telescopic parts.

[0008] According to some embodiments of the present invention, the fixing frame 1 is provided with a torque shaft rotatably connected to the connecting member 2, the torque shaft is located between the connecting member 1 and the sliding block, and the distance between the torque shaft and the connecting member 1 is smaller than the distance between the torque shaft and the sliding block.

[0009] According to some embodiments of the present invention, the support plate is provided with a first clearance groove perpendicular to the axis of the rotating drum, and the tooth plate is provided with a limit frame, the tooth plate is provided with a second clearance groove, and the limit frame passes through the second clearance groove and is slidably connected to the support plate and extends into the first clearance groove.

[0010] According to some embodiments of the present invention, the tooth plate 1 is provided with two groups and is symmetrically distributed on both sides of the rotating drum along the center of the support plate, and the two groups of tooth plates 1 are in contact with each other, the adjusting gear and the cam are provided with two groups, and the two groups of adjusting gears are close to each other, and the two groups of cams are respectively located on both sides of the two groups of adjusting gears away from each other, each group of the adjusting gears is meshed and connected with the two groups of tooth plates 1, and the protrusions of the two groups of cams are symmetrically distributed.

[0011] According to some embodiments of the present invention, the width of the second clearance groove is greater than the width of the limit frame, and the width of the second clearance groove is the same as the distance that the tooth plate 1 moves when the adjusting gear rotates one quarter, that is, when the cam follows the adjusting gear to rotate 90 degrees, the cam pushes the tooth plate 1 away from the protective plate to the maximum limit position.

[0012] According to some embodiments of the present invention, an auxiliary component is further included, which includes a guide hopper located above the conveying body and a buffer plate rotatably installed in the guide hopper, the buffer plate is coaxially mounted with a drive gear, and the drive gear is located outside the guide hopper.

[0013] According to some embodiments of the present invention, it also includes an adjustment plate slidably installed on the conveying body, and two groups of tooth plates 2 are provided on the top of the adjustment plate, which are respectively located on both sides of the driving gear, and the two groups of tooth plates 2 are staggered and distributed on both sides of the driving gear close to and away from the guide hopper, and a reset part is provided on the side of the adjustment plate facing the protective plate.

[0014] According to some embodiments of the present invention, a limiting rod is further included on the conveying body, the adjustment plate is provided with an annular guide groove for guiding the two sets of gear plates to engage with the driving gear in sequence, and the limiting rod is provided with a guide column extending into the annular guide groove.

[0015] According to some embodiments of the present invention, a limiting groove and a guiding portion are provided in the annular guide groove, the limiting groove is semicircular and located at the top side of the annular guide groove, and the guiding portion is inclined and located at the bottom of the annular guide groove.

[0016] Compared with the prior art, the technical solution provided by the present invention has the following beneficial effects:

[0017] 1. The offset conveyor belt squeezes the protective disc and the rotating drum to cause relative displacement. The protective disc drives the tooth plate 1 to move to cooperate with the adjusting gear and the cam to separate the other set of tooth plates 1 from the corresponding protective disc. As the tooth plate 1 continues to move to cooperate with the retractable connecting piece 2 and the connecting piece 1, the rotation angle of the adjusting roller is adjusted to correct the deviated conveyor belt. In conjunction with the torque shaft set on the fixed frame 1, the sliding block can more easily move the adjusting roller to rotate during movement, thereby reducing the extrusion between the protective disc and the conveyor belt during the adjustment process and reducing wear.

[0018] Second, a buffer plate is provided to reduce the impact force of the material falling onto the fixed roller. When the driving gear rotates, one of the sets of tooth plates 2 on the adjustment plate will be moved to drive the adjustment plate down. At this time, the annular guide groove, the limit groove and the guide part are used to guide the adjustment plate to move axially on the driving gear, thereby realizing the alternating engagement of the two sets of tooth plates 2 with the driving gear, automatically realizing the rise and fall of the adjustment plate, and when the adjustment plate rises, the reset part is used to quickly squeeze and reset the protective plate, realizing rapid adjustment and utilizing the potential energy of the falling stone. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. Those skilled in the art can also derive other drawings based on these drawings without inventive effort.

[0020] Figure 1 It is a schematic structural diagram of the present invention as a whole.

[0021] Figure 2 This is a schematic diagram of the connection structure between the adjusting roller and the sliding block of the present invention.

[0022] Figure 3 It is a partial exploded schematic diagram of the structure of the connection between the tooth plate 1, the sliding block and the protective plate of the present invention.

[0023] Figure 4 It is a partial cross-sectional view of the auxiliary component of the present invention.

[0024] Figure 5 This is a schematic diagram of the connection between the adjustment plate and the adjustment gear of the present invention.

[0025] Figure 6 It is a schematic diagram of the partial structure of the adjustment plate of the present invention.

[0026] Figure 7 This is a three-dimensional diagram of the state change of the adjusting roller of the present invention.

[0027] Figure 8This is a top view of the state change of the adjusting roller of the present invention.

[0028] 1. Conveying body; 11. Fixed roller; 12. Rotating drum; 2. Adjusting assembly; 21. Fixed frame 1; 22. Adjusting roller; 23. Connecting piece 1; 24. Connecting piece 2; 25. Sliding block; 251. Support plate; 2511. Gap slot 1; 252. Adjusting gear; 253. Cam; 26. Fixed frame 2; 27. Tooth plate 1; 2701. Gap slot 2; 271. Limiting frame; 28. Protective plate; 3. Auxiliary assembly; 31. Guide hopper; 32. Buffer plate; 321. Driving gear; 33. Adjusting plate; 331. Annular guide groove; 332. Limiting groove; 333. Guide part; 34. Limiting rod; 341. Guide column; 35. Tooth plate 2; 36. Resetting member; 37. Protective shell; 371. Limiting frame. DETAILED DESCRIPTION

[0029] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings 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 making any creative efforts shall fall within the scope of protection of the present invention.

[0030] The present invention will be further described below with reference to the embodiments.

[0031] Refer to the attached Figure 1-8, a stone conveying equipment for construction, including a conveying body 1, a fixed roller 11 and a rotating drum 12 are provided on the conveying body 1, the rotating drum 12 is provided with two groups and is respectively located on both sides of the conveying body 1, a plurality of fixed rollers 11 are provided and are equidistantly distributed between the two groups of rotating drums 12, and also includes an adjusting component 2 for adjusting the conveyor belt on the conveying body 1 and correcting the deviation, the adjusting component 2 includes a fixed frame 1 21 and a fixed frame 2 26 arranged in parallel, the fixed frame 1 21 and the fixed frame 2 26 are both fixed on the conveying body 1, and the fixed frame 2 26 is located on the side close to the initial section rotating drum 12, that is, the side where the conveying body 1 is loaded, an adjusting roller 22 is rotatably installed on the fixed frame 1 21, and the adjusting roller 22 consists of three groups of rollers, one group of water The other two groups of horizontal rollers are at a certain angle to the horizontal rollers, and the angle between the inclined rollers and the horizontal rollers is between 30° and 45°. The rotation axis of the adjusting roller 22 is vertically downward. When the adjusting roller 22 rotates, the inclined rollers on both sides of the horizontal roller are squeezed with the conveyor belt on the conveying body 1 to adjust it. A sliding block 25 is slidably installed on the fixed frame 26. The sliding direction of the sliding block 25 is parallel to the axis of the rotating drum 12, that is, the sliding block 25 moves from the center of the conveyor belt to the edge when sliding, and a support plate 251 is provided on the sliding block 25. A connecting piece 24 for toggling the adjusting roller 22 is provided on the sliding block 25. The rotation of the adjusting roller 22 is adjusted by driving the connecting piece 24 by the movement of the sliding block 25.

[0032] Specifically, a connecting piece 23 is installed on the rotating shaft of the adjusting roller 22, one end of the connecting piece 24 is rotatably set on the connecting piece 1 23, and the other end is rotatably connected to the sliding block 25, and the connecting piece 1 23 and the connecting piece 2 24 are both telescopic parts. The sliding block 25 is moved in the axial direction of the rotating drum 12 to pull the connecting piece 24, so that the connecting piece 24 drives the connecting piece 1 23, and then drives the adjusting roller 22 to rotate on the fixed frame 1 21, and cooperates with the inclined roller on the adjusting roller 22 to extrude the belt for correction.

[0033] Furthermore, a torque shaft rotatably connected to the second connector 24 is provided on the fixing frame 1 21. The torque shaft is located between the first connector 23 and the sliding block 25, and the distance between the torque shaft and the first connector 23 is smaller than the distance to the sliding block 25, that is, the distance between the torque shaft and the connecting axis of the second connector 24 and the first connector 23 is smaller than the distance between the torque shaft and the connecting axis of the second connector 24 and the sliding block 25, so that the sliding block 25 can more easily move the adjustment roller 22 to rotate when moving.

[0034] And the protective plate 28 is elastically mounted on both sides of the rotating drum 12, and the protective plate 28 is provided with an annular groove. The protective plate 28 is slidably mounted on the rotating drum 12, and an elastic member is provided between the protective plate 28 and the rotating drum 12. The diameter of the protective plate 28 is larger than the diameter of the rotating drum 12, and the rotating drum 12 is set on the conveying body 1 through the bracket, and an adjustment gap is provided between the two ends of the rotating drum 12 and the bracket, so that after the conveyor belt squeezes the protective plate 28, it can drive the protective plate 28 to move to a certain position. The specific size is set according to actual conditions. A tooth plate 27 inserted into the protective plate 28 is slidably mounted on the support plate 251. The tooth plate 27 is L-shaped, and the short side is inserted into the annular groove on the protective plate 28, and the long side is slidably connected to the support plate 251. An adjusting gear 252 is rotatably mounted on the support plate 251, and the adjusting gear 252 is coaxially mounted with a cam 253 for toggling the tooth plate 27 and the protective plate 28 to separate.

[0035] Specifically, the support plate 251 is provided with a give way groove 2511 perpendicular to the axis of the rotating drum 12, and the tooth plate 27 is provided with a limit frame 271. A reset spring is provided between the support plate 251 and the limit frame 271, which is used for the tooth plate 27 to reset after sliding on the support plate 251 and not being squeezed. The tooth plate 27 is provided with a give way groove 2701, and the limit frame 271 passes through the give way groove 2701 and is slidably connected to the support plate 251 and extends into the give way groove 2511.

[0036] Furthermore, there are two groups of tooth plates 27 and they are symmetrically distributed on both sides of the drum 12 along the center of the support plate 251, and the two groups of tooth plates 27 are in contact with each other. There are two groups of adjusting gears 252 and cams 253, and the two groups of adjusting gears 252 are close to each other. The two groups of cams 253 are respectively located on both sides of the two groups of adjusting gears 252 that are away from each other. Each group of adjusting gears 252 is meshed with the two groups of tooth plates 27, and the protrusions of the two groups of cams 253 are symmetrically distributed. When one of the groups of tooth plates 27 is pulled respectively, the adjusting gear 252 is driven to rotate to drive the cam 253 to rotate, thereby squeezing the other group of tooth plates 27 to slide in the give way groove 2511 away from the drum 12, separating the other group of tooth plates 27 from the protective plate 28, and thus achieving that after any group of tooth plates 27 is pulled by the protective plate 28, the tooth plates 27 on the opposite side will be separated from the corresponding protective plate 28 to prevent mutual interference.

[0037] Furthermore, the width of the second clearance groove 2701 is greater than the width of the limit frame 271, and the width of the second clearance groove 2701 is the same as the distance that the tooth plate 27 moves when the adjusting gear 252 rotates one quarter, that is, when the cam 253 follows the adjusting gear 252 to rotate 90 degrees, the cam 253 pushes the tooth plate 27 away from the protective plate 28 to the maximum limit position. When one set of tooth plates 27 pulls the adjusting gear 252, the adjusting gear 252 will also correspondingly move the other set of tooth plates 27, and the other set of tooth plates 27 moves longitudinally while moving horizontally, and then separates from the corresponding protective plate 28. Since the protective plate 28 is elastically installed on the rotating drum 12, the protective plate 28 on the opposite side that is not squeezed by the conveyor belt is forced to pull a certain distance and then automatically reset.

[0038] In the above technical solution, after the conveyor belt deviates, the protective plate 28 will be squeezed to cause relative displacement with the rotating drum 12. At this time, the protective plate 28 drives the tooth plate 1 27 to move to cooperate with the adjusting gear 252 and the cam 253 to separate the other set of tooth plates 1 27 from the corresponding protective plate 28. As the tooth plate 1 27 continues to move, it drives the sliding block 25 to move on the fixed frame 2 26, and then cooperates with the retractable connecting member 2 24 and the connecting member 1 23 to adjust the rotation angle of the adjusting roller 22 to correct the deviated conveyor belt. In cooperation with the torque shaft set on the fixed frame 1 21, by setting the distance between the torque shaft and the connecting member 1 23 to be smaller than the distance to the sliding block 25, the sliding block 25 can more easily move the adjusting roller 22 to rotate during movement, thereby reducing the extrusion between the protective plate 28 and the conveyor belt during the adjustment process and reducing wear.

[0039] In addition, it also includes an auxiliary component 3, which includes a guide hopper 31 located above the conveying body 1 and a buffer plate 32 rotatably installed in the guide hopper 31. The buffer plate 32 is coaxially installed with a drive gear 321, and the drive gear 321 is located outside the guide hopper 31. By arranging a rotating buffer plate 32 in the guide hopper 31, the impact force when the material falls directly onto the conveying body 1 is reduced, thereby preventing the tension on both sides of the conveyor belt from being unbalanced, and at the same time reducing the early failure of the roller group bearings due to excessive impact force.

[0040] The cam 33 is rotated to move the gear 321 in a direction of rotation and the cam 33 is rotated to move the gear 321 in a direction of rotation so that the cam 33 is rotated in a direction of rotation.

[0041] In addition, it also includes a limiting rod 34 arranged on the conveying body 1. The limiting rod 34 is provided with two groups and is respectively located on both sides of the adjustment plate 33. The adjustment plate 33 is provided with an annular guide groove 331 for guiding the two groups of tooth plates 35 to engage with the driving gear 321 in sequence. The limiting rod 34 is provided with a guide column 341 extending into the annular guide groove 331. The annular guide groove 331 is provided with a limiting groove 332 and a guide portion 333. The limiting groove 332 is semicircular and is located on the top side of the annular guide groove 331. The limiting groove 332 is used to guide the tooth plate 2 35 to disengage from the driving gear 321 and limit the movement of the adjustment plate 33. The guide portion 333 is inclined and is located at the bottom of the annular guide groove 331. The guide portion 333 is used to guide the engagement and switching of the two sets of tooth plates 2 35 and the driving gear 321. The device also includes a protective shell 37 covering the adjusting plate 33 and the driving gear 321 for protection. At the same time, a limiting frame 371 is provided in the protective shell 37 to assist the tooth plate 2 35 to move more stably.

[0042] When the gear 321 is in the state of rotation and the guide post 341 is moved to the stop groove 331, the gear 321 is moved to the stop groove 332, and the gear 321 is moved to the stop groove 331. When the gear 321 is in the state of rotation and the guide post 341 is moved to the stop groove 331, the gear 321 is moved to the stop groove 332, and the gear 321 is moved to the stop groove 331. Tooth plate 2 35 is engaged with driving gear 321. At this time, adjustment plate 33 rises under the manipulation of driving gear 321, and cooperates with reset member 36 on adjustment plate 33 to squeeze protective plate 28 for rapid reset, thereby realizing rapid deviation correction of conveyor belt. After adjustment plate 33 rises until guide post 341 enters guide portion 333, adjustment plate 33 is guided again to move axially on driving gear 321 and approach guide hopper 31, and then tooth plate 2 35 is alternately engaged with driving gear 321, so as to realize buffering of buffer plate 32 while utilizing the potential energy of falling stone. In some special occasions, that is, when it is inconvenient to supply power or use electricity, this structure can still operate and actively perform deviation correction, and has a wider range of applications.

[0043] Working principle: when the protective disc 28 is squeezed by the conveyor belt after deviation, it is displaced relative to the rotating drum 12, and the protective disc 28 drives the tooth plate 1 27 to move to cooperate with the adjusting gear 252 and the cam 253 to separate the other set of tooth plates 1 27 from the corresponding protective disc 28, and then the actively moving tooth plate 1 27 drives the sliding block 25 to move on the fixed frame 2 26, and then cooperates with the retractable connecting piece 24 and the connecting piece 1 23 to adjust the rotation angle of the adjusting roller 22 to correct the deviated conveyor belt. In conjunction with the torque shaft set on the fixed frame 1 21, the sliding block 25 can more easily move the adjusting roller 22 to rotate during movement, reducing the extrusion and wear between the protective disc 28 and the conveyor belt during the adjustment process. When the material enters the fixed roller 11, the buffer plate 32 is used to reduce the impact force of the material falling onto the fixed roller 11. When the driving gear 321 rotates, one set of tooth plates 2 35 will be moved, causing the adjusting plate 33 to drop as a whole. The annular guide groove 331, the limiting groove 332 and the guide portion 333 are closed. When the guide post 341 is guided to the limiting groove 332, the tooth plate 2 35 on the adjustment plate 33 is disengaged from the drive gear 321, and the other set of tooth plates 2 35 is not engaged with the drive gear 321. When the displacement of the protective plate 28 exceeds the preset value, the adjustment plate 33 is squeezed, so that the guide post 341 enters the annular guide groove 331 again. At the same time, the adjustment plate 33 is displaced from the axis of the drive gear 321 and moves away from the guide hopper 31. , the other tooth plate 2 35 near the guide hopper 31 is engaged with the driving gear 321. At this time, the tooth plate 2 35 drives the adjustment plate 33 to rise under the toggle of the driving gear 321, and cooperates with the reset member 36 on the adjustment plate 33 to squeeze the protective plate 28 for rapid reset, thereby realizing rapid deviation correction of the conveyor belt. Under the guidance of the guide part 333, the guide adjustment plate 33 moves axially on the driving gear 321 and approaches the guide hopper 31, and then the tooth plate 2 35 is alternately engaged with the driving gear 321.

[0044] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A stone conveying device for construction, comprising a conveying body (1), wherein the conveying body (1) is provided with a fixed roller (11) and a rotating drum (12), and ... fixed roller (11) and the rotating drum (12) are provided with a fixed roller (11) and include: An adjustment component (2), the adjustment component (2) comprising a fixed frame 1 (21) and a fixed frame 2 (26) arranged in parallel, an adjustment roller (22) being rotatably mounted on the fixed frame 1 (21), a sliding block (25) being slidably mounted on the fixed frame 2 (26), and a support plate (251) being provided on the sliding block (25), a connecting member 2 (24) for driving the adjustment roller (22) to rotate being provided on the sliding block (25), a connecting member 1 (23) being mounted on the rotating shaft of the adjustment roller (22), one end of the connecting member 2 (24) being rotatably mounted on the connecting member 1 (23), and the other end being rotatably connected to the sliding block (25), and both the connecting member 1 (23) and the connecting member 2 (24) being telescopic members; and protective plates (28) elastically mounted on both sides of the rotating drum (12), a tooth plate (27) inserted into the protective plate (28) being slidably mounted on the support plate (251), an adjusting gear (252) being rotatably mounted on the support plate (251), and a cam (253) for shifting the tooth plate (27) and the protective plate (28) to be separated coaxially with the adjusting gear (252), a first clearance groove (2511) perpendicular to the axis of the rotating drum (12) being provided on the support plate (251), and a limiting frame (271) being provided on the tooth plate (27), a second clearance groove (2701) being provided on the tooth plate (27), and the limiting frame (271) It passes through the second clearance groove (2701) and is slidably connected to the support plate (251) and extends into the first clearance groove (2511). The tooth plate (27) is provided with two groups and is symmetrically distributed on both sides of the rotating drum (12) along the center of the support plate (251), and the two groups of tooth plates (27) are fitted with each other. The adjusting gear (252) and the cam (253) are provided with two groups, and the two groups of adjusting gears (252) are close to each other. The two groups of cams (253) are respectively located on both sides of the two groups of adjusting gears (252) that are away from each other. Each group of the adjusting gears (252) is meshed with the two groups of tooth plates (27), and the raised parts of the two groups of cams (253) are symmetrically distributed.

2. A construction gravel conveying equipment according to claim 1, characterized in that: The fixing frame 1 (21) is provided with a torque shaft rotatably connected to the connecting member 2 (24), the torque shaft is located between the connecting member 1 (23) and the sliding block (25), and the distance between the torque shaft and the connecting member 1 (23) is smaller than that between the torque shaft and the sliding block (25).

3. The construction gravel conveying equipment according to claim 1, characterized in that: The width of the second clearance groove (2701) is greater than the width of the limiting frame (271), and the width of the second clearance groove (2701) is the same as the distance that the tooth plate (27) moves when the adjusting gear (252) rotates one quarter, that is, when the cam (253) rotates 90 degrees following the adjusting gear (252), the cam (253) pushes the tooth plate (27) away from the protective plate (28) to the maximum limit position.

4. The construction gravel conveying equipment according to claim 1, characterized in that: The auxiliary assembly (3) further comprises a guide hopper (31) located above the conveying body (1) and a buffer plate (32) rotatably mounted in the guide hopper (31), wherein a driving gear (321) is coaxially mounted on the buffer plate (32), and the driving gear (321) is located outside the guide hopper (31).

5. The construction gravel conveying equipment according to claim 4, characterized in that: The invention also includes an adjustment plate (33) slidably mounted on the conveying body (1), wherein the top of the adjustment plate (33) is provided with two sets of tooth plates (35) respectively located on both sides of the driving gear (321), and the two sets of tooth plates (35) are staggered and distributed on both sides of the driving gear (321) close to and away from the guide hopper (31), and a reset member (36) is provided on the side of the adjustment plate (33) facing the protective plate (28).

6. The construction gravel conveying equipment according to claim 5, characterized in that: It also includes a limiting rod (34) arranged on the conveying body (1), the adjustment plate (33) is provided with an annular guide groove (331) for guiding the two sets of tooth plates (35) to engage with the driving gear (321) in sequence, and the limiting rod (34) is provided with a guide column (341) extending into the annular guide groove (331).

7. The construction gravel conveying equipment according to claim 6, characterized in that: A limiting groove (332) and a guiding portion (333) are provided in the annular guide groove (331); the limiting groove (332) is semicircular and located at the top side of the annular guide groove (331); and the guiding portion (333) is inclined and located at the bottom of the annular guide groove (331).

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