Belt conveyor with elastic sweeper

Abstract

The invention belongs to the technical field of belt conveyor application, and discloses a belt conveyor with an elastic sweeper, which comprises a belt conveyor, and further comprises a sweeper mechanism mounted on the belt conveyor; the sweeper mechanism comprises a set of connecting plates installed on a head frame body of the belt conveyor, and a main shaft is rotationally connected between the two connecting plates. According to the scheme, after the connecting plate is installed on the rack part of the belt conveyor, the elastic supporting piece is forced to be compressed by rotating the nut, one end of the elastic supporting piece can push the shifting rod to rotate around the shaft, the shifting rod can drive the support and the scraper to rotate through the main shaft at the moment, and meanwhile the spring telescopic rod can be lengthened; and finally, tool bit parts of the multiple sets of scraping plates are attached to the surface of a conveying belt on the belt conveyor, and through the arrangement of the multiple sets of supports and the scraping plates, the problem that a set of linear scraping plates cannot be completely overlapped with the surface of the conveying belt can be solved.

Description

Technical Field

[0001] This invention belongs to the field of belt conveyor application technology, specifically a belt conveyor with an elastic cleaner. Background Technology

[0002] When conveying materials with a certain degree of viscosity, such as wet coal, clay, or certain mineral powders with high moisture content, the material often partially adheres to the working surface of the conveyor belt after unloading and cannot be completely removed by gravity. When the adhered material passes the lower idler roller with the return belt, it forms hard particles between the idler roller and the belt, constantly scraping the non-working surface of the conveyor belt and thus accelerating belt wear. Therefore, to avoid the above problems, operators usually install a cleaner at the head of the conveyor belt.

[0003] The scraper frame is typically mounted on the belt conveyor frame, located behind the discharge roller at the head of the conveyor, at the transition point where the conveyor belt is about to enter the return section. It primarily uses scrapers or brushes to tightly adhere to the working surface of the conveyor belt, forcibly removing residual material adhering to the belt surface and preventing it from entering the return section with the belt. However, typical scrapers are usually a set of straight scrapers. Due to the natural curvature of the conveyor belt section corresponding to the scraper's installation location, it is difficult to achieve a tight fit between the straight scrapers and the conveyor belt surface along its entire length. This incomplete overlap allows some adhered material to enter the return section, becoming a potential wear hazard and reducing cleaning efficiency. Furthermore, uneven contact pressure accelerates localized wear on the scrapers themselves, shortening their service life and potentially damaging the conveyor belt due to excessive pressure points.

[0004] Therefore, in order to solve the above problems, a belt conveyor with an elastic cleaner was proposed. Summary of the Invention

[0005] To address the problems mentioned in the background art, the present invention provides a belt conveyor with an elastic cleaner, which solves the problem that it is difficult to achieve a tight fit between the straight scraper and the conveyor belt surface over the entire length, resulting in damage to the scraper itself and the conveyor belt.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a belt conveyor with an elastic cleaner, comprising a belt conveyor and further comprising: a cleaner mechanism installed on the belt conveyor; the cleaner mechanism comprises a set of connecting plates installed on the head frame of the belt conveyor, a main shaft rotatably connected between the two connecting plates, both ends of the main shaft being fixedly sleeved with levers, a limit rod being rotatably connected to the bottom outer side of the connecting plates, the rod body of the limit rod being able to pass through the lever, an elastic support and a nut being sleeved on the outer periphery of the limit rod, both ends of the elastic support abutting against the nut and the lever respectively, and a plurality of supports being fixedly sleeved at equal intervals on the outer periphery of the main shaft, the top of the supports being fixedly connected with a scraper that can fit against the belt surface of the belt conveyor;

[0007] A support sleeve rod is fixedly connected to the bottom between the two connecting plates. A telescopic rod mechanism is hinged to the side of the support facing away from the belt conveyor. The bottom of several telescopic rod mechanisms is sleeved on the outer periphery of the support sleeve rod. One end of the support sleeve rod is provided with an oil pressure regulating mechanism for pumping hydraulic oil into the telescopic rod mechanism.

[0008] Preferably, the support is made of high molecular weight polyurethane material.

[0009] Preferably, the support sleeve is provided with a group of through holes at equal intervals, and the group of through holes includes a plurality of through holes arranged in a ring array on the support sleeve.

[0010] The telescopic rod mechanism includes a connecting seat hinged to the support, a spring telescopic rod fixedly connected to the bottom of the connecting seat, and a plurality of sleeves equidistantly sleeved on the outer periphery of the support sleeve. The sleeves are provided with oil supply holes, and the support sleeve can communicate with the cavity of the sleeves through the through holes and the oil supply holes. A piston head is fixedly connected to the bottom of the spring telescopic rod, and the piston head is movably sleeved in the sleeves.

[0011] Preferably, an outer protective cylinder is fixedly installed on the connecting seat, and the outer protective cylinder is also movably sleeved on the upper middle part of the sleeve component.

[0012] Preferably, the hydraulic pressure regulating mechanism includes a plug rod and a piston sleeve movably sleeved on one end of the support sleeve rod. A threaded rod is threadedly connected to the piston sleeve. The threaded rod is rotatably connected to the end of the support sleeve rod. One end of the threaded rod extends to the outside of the support sleeve rod and the piston sleeve and has a plug hole.

[0013] The support sleeve contains hydraulic oil, and the outer periphery of the piston sleeve rod is provided with splines, which can mate with the inner wall of the support sleeve.

[0014] Preferably, the diameter of the piston end portion of the piston sleeve is larger than the diameter of the sleeve body portion.

[0015] Preferably, a valve core mechanism for evenly adjusting the supporting force of several telescopic rod mechanisms is installed inside the support sleeve.

[0016] Preferably, the valve core mechanism includes a spring push rod movably sleeved within a support sleeve rod. One end of the spring push rod is a spring and is fixedly connected to the support sleeve rod. One end of the spring push rod passes through the piston sleeve and is provided with a tapered head. Initially, the tapered portion of the tapered head is located in the insertion hole. A plurality of valve core portions are equidistantly arranged on the spring push rod. Each valve core portion has a transverse hole and a longitudinal hole, and one end of the transverse hole and the longitudinal hole are connected. Initially, the other end of the longitudinal hole is blocked by the inner wall of the support sleeve rod. When the valve core portion moves, it can drive the longitudinal hole to connect with the corresponding through hole.

[0017] Preferably, a spring-loaded column is movably mounted on the threaded rod, and when the spring-loaded column is pressed and charged, it can push the conical head out of the insertion hole.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0019] The above solution involves installing the connecting plate on the frame of the belt conveyor, then forcing the elastic support to compress by rotating the nut. One end of the elastic support will push the lever to rotate around the shaft. At this time, the lever will drive the support and scraper to rotate through the main shaft. Meanwhile, the spring telescopic rod will be stretched, which will eventually make the blades of several sets of scrapers fit against the conveyor belt surface. By setting several sets of supports and scrapers, the problem of a set of straight scrapers not being able to fully overlap with the conveyor belt surface can be solved.

[0020] The above solution, by inserting the insert rod into the insertion hole and driving the piston sleeve to move by rotating the insertion hole, enables the piston sleeve to transport the hydraulic oil in the support sleeve rod to the sleeve component through the through hole and the oil supply hole, thereby pushing several sets of piston heads, spring telescopic rods and connecting seats upward, which in turn causes the corresponding supports and scrapers to rotate and overlap with the conveyor belt surface on the belt conveyor, avoiding the situation where the pressure of several sets of scrapers on the conveyor belt surface during operation is uneven due to rotating the nut on the single-sided limit rod;

[0021] The above solution involves inserting the insert rod into the insertion hole, which first pushes the conical head and spring push rod to move. At this time, the valve core will drive the longitudinal hole to connect with the corresponding oil supply hole through the through hole. At this time, the cavities of several sets of sleeve parts will be connected to the support sleeve rod through the corresponding oil supply hole, through hole, longitudinal hole, transverse hole, and so on. This ensures that when the support sleeve rod pumps hydraulic oil into several sets of sleeve parts, the spring telescopic rod is compressed to the same degree. This makes the pressure of several sets of scrapers on the conveyor belt surface the same. After the adjustment is completed, when the spring push rod and valve core are reset, several sets of valve cores can block the corresponding through holes, avoiding the situation where a single set of spring telescopic rods is compressed and pushes the piston head to move, thus affecting the piston heads of other sets. Attached Figure Description

[0022] Figure 1 This is a front view schematic diagram of the structure of the present invention in conjunction with a belt conveyor;

[0023] Figure 2 This is a schematic diagram of the side view of the present invention.

[0024] Figure 3 This is a schematic diagram of the overall structure of the present invention;

[0025] Figure 4 This is a schematic diagram of the front cross-sectional structure of the present invention;

[0026] Figure 5 for Figure 4 Enlarged view of point A in the middle;

[0027] Figure 6 This is a side cross-sectional view of the present invention;

[0028] Figure 7 for Figure 6 Enlarged view of point B in the middle;

[0029] Figure 8 for Figure 6 Enlarged view of point C in the middle;

[0030] Figure 9 This is a schematic diagram of the support sleeve of the present invention.

[0031] In the diagram: 1. Belt conveyor; 2. Scraper mechanism; 21. Connecting plate; 22. Main shaft; 23. Lever; 24. Limiting rod; 25. Elastic support; 26. Support; 27. Scraper; 3. Support sleeve; 31. Through hole; 4. Telescopic rod mechanism; 41. Connecting seat; 411. Outer protective cylinder; 42. Spring telescopic rod; 43. Sleeve component; 44. Piston head; 45. Oil inlet; 5. Oil pressure regulating mechanism; 51. Piston sleeve; 52. Threaded rod; 521. Spring pressure column; 53. Insertion hole; 54. Insert rod; 6. Valve core mechanism; 61. Spring push rod; 62. Valve core part; 63. Transverse hole; 64. Longitudinal hole; 65. Conical head. Detailed Implementation

[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] like Figures 1 to 9As shown, the present invention provides a belt conveyor with an elastic cleaner, including a belt conveyor 1 and a cleaner mechanism 2 installed on the belt conveyor 1. The cleaner mechanism 2 includes a set of connecting plates 21 installed on the head frame of the belt conveyor 1. A main shaft 22 is rotatably connected between the two connecting plates 21. Both ends of the main shaft 22 are fixedly sleeved with levers 23. A limit rod 24 is rotatably connected to the bottom outer side of the connecting plates 21. The rod body of the limit rod 24 can pass through the lever 23. An elastic support member 25 and a nut are sleeved on the outer periphery of the limit rod 24. Both ends of the elastic support member 25 abut against the nut and the lever 23 respectively. A plurality of supports 26 are fixedly sleeved at equal intervals on the outer periphery of the main shaft 22. A scraper 27 that can fit against the belt surface of the belt conveyor 1 is fixedly connected to the top of the supports 26.

[0034] A support sleeve rod 3 is fixedly connected to the bottom between the two connecting plates 21. A telescopic rod mechanism 4 is hinged to the side of the support 26 facing away from the belt conveyor 1. The bottom of several telescopic rod mechanisms 4 is sleeved on the outer periphery of the support sleeve rod 3. One end of the support sleeve rod 3 is provided with an oil pressure regulating mechanism 5 for pumping hydraulic oil into the telescopic rod mechanism 4.

[0035] Support 26 is made of high-molecular polyurethane material;

[0036] The support sleeve rod 3 is provided with a group of through holes at equal intervals. The group of through holes includes a number of through holes 31 arranged in a ring array on the support sleeve rod 3.

[0037] The telescopic rod mechanism 4 includes a connecting seat 41 hinged to the support 26. A spring telescopic rod 42 is fixedly connected to the bottom of the connecting seat 41. A plurality of sleeves 43 are equidistantly sleeved on the outer periphery of the support sleeve 3. The sleeves 43 are provided with oil inlets 45. The support sleeve 3 can communicate with the cavity of the sleeves 43 through the through hole 31 and the oil inlet 45. A piston head 44 is fixedly connected to the bottom of the spring telescopic rod 42, and the piston head 44 is movably sleeved in the sleeves 43.

[0038] By adopting the above solution, after the connecting plate 21 is installed on the frame of the belt conveyor 1, the elastic support 25 is compressed by rotating the nut. One end of the elastic support 25 will push the lever 23 to rotate around the axis. At this time, the lever 23 will drive the support 26 and scraper 27 to rotate through the main shaft 22. At the same time, the spring telescopic rod 42 will be stretched, while the position of the piston head 44 remains unchanged. This will cause the blades of several sets of scrapers 27 to fit against the conveyor belt surface on the belt conveyor 1. By setting several sets of supports 26 and scrapers 27, the problem that a set of straight scrapers cannot be completely overlapped with the conveyor belt surface can be solved.

[0039] like Figure 5 As shown, an outer protective cylinder 411 is fixedly installed on the connecting seat 41, and the outer protective cylinder 411 is also movably sleeved on the upper middle part of the sleeve part 43.

[0040] By adopting the above solution, the outer protective cylinder 411 can provide good protection for the spring telescopic rod 42, preventing the spring telescopic rod 42 from bending and being damaged, and also preventing the conveyed material from falling into the sleeve 43.

[0041] like Figure 2 , Figure 3 , Figure 6 , Figure 7 and Figure 9 As shown, the hydraulic pressure regulating mechanism 5 includes a plug rod 54 and a piston sleeve 51 movably sleeved on one end of the support sleeve rod 3. A threaded rod 52 is threadedly connected to the piston sleeve 51. The threaded rod 52 is rotatably connected to the end of the support sleeve rod 3. One end of the threaded rod 52 extends to the outside of the support sleeve rod 3 and the piston sleeve 51 and has a plug hole 53.

[0042] Hydraulic oil is stored inside the support sleeve 3. The outer periphery of the piston sleeve 51 rod part is provided with splines, and the splines can mate with the inner wall of the support sleeve 3. The diameter of the piston end part of the piston sleeve 51 is larger than the diameter of the sleeve part 43.

[0043] By using the above solution, by inserting the insertion rod 54 into the insertion hole 53 and driving the piston sleeve 51 to move by rotating the insertion hole 53, the piston sleeve 51 can transport the hydraulic oil in the support sleeve rod 3 to the sleeve part 43 through the through hole 31 and the oil supply hole 45, thereby pushing several sets of piston heads 44, spring telescopic rods 42 and connecting seats 41 upward, thereby causing the corresponding supports 26 and scrapers 27 to rotate and overlap the conveyor belt surface on the belt conveyor 1, avoiding the situation where the pressure of several sets of scrapers 27 on the conveyor belt surface during operation would be uneven if the nut on the single-sided limit rod 24 is rotated.

[0044] like Figures 4-9 As shown, a valve core mechanism 6 for balancing the support force of several telescopic rod mechanisms 4 is installed inside the support sleeve rod 3. The valve core mechanism 6 includes a spring push rod 61 movably sleeved inside the support sleeve rod 3. One end of the spring push rod 61 is a spring and the spring is fixedly connected to the support sleeve rod 3. One end of the spring push rod 61 passes through the piston sleeve 51 and is provided with a conical head 65. Initially, the conical part of the conical head 65 is located in the insertion hole 53. Several valve core parts 62 are equidistantly arranged on the spring push rod 61. A transverse hole 63 and a longitudinal hole 64 are opened on the valve core part 62. One end of the transverse hole 63 and the longitudinal hole 64 are connected. Initially, the other end of the longitudinal hole 64 is blocked by the inner wall of the support sleeve rod 3. When the valve core part 62 moves, it can drive the longitudinal hole 64 to connect with the corresponding through hole 31.

[0045] A spring-loaded column 521 is movably mounted on the threaded rod 52. When the spring-loaded column 521 is pressed and stored, it can push the conical head 65 out of the insertion hole 53.

[0046] Using the above scheme, inserting the insertion rod 54 into the insertion hole 53 will first push the conical head 65 and the spring push rod 61 to move. At this time, the valve core 62 will drive the longitudinal hole 64 to connect with the corresponding oil supply hole 45 through the through hole 31. At this time, the cavities of several sets of sleeve parts 43 will all be connected to the support sleeve rod 3 through the corresponding oil supply hole 45, through hole 31, longitudinal hole 64, transverse hole 63, and the support sleeve rod 3. This ensures that when the support sleeve rod 3 pumps hydraulic oil into several sets of sleeve parts 43, the spring telescopic rod 42 is compressed to the same degree. This will make the pressure of several sets of scrapers 27 on the conveyor belt surface the same. After the adjustment is completed, when the spring push rod 61 and the valve core 62 are reset, several sets of valve cores 62 can block the corresponding through hole 31, avoiding the situation where a single set of spring telescopic rods 42 is compressed and pushes the piston head 44 to move, thus affecting the other sets of piston heads 44. By setting the spring-loaded column 521, the operator can push the conical head 65 by pressing the spring-loaded column 521 before installing the sweeper mechanism 2, so that the cavities of several sleeve parts 43 are interconnected through the support sleeve rod 3. At this time, under the action of the elastic force of the oil supply hole 45, several sets of scrapers 27 can be kept on the same plane.

[0047] It is worth noting that if the lever 23 is rotated and the scraper 27 is made to fit against the conveyor belt surface by adjusting the nut on the limit rod 24, the belt conveyor 1 will be damaged because the wear of the scrapers 27 is different. In addition, the setting of two limit rods 24 means that the operator can only adjust the nut on one side of the limit rod 24 at a time, which will further aggravate the uneven pressure of the scrapers 27 on the conveyor belt surface on the main shaft 22.

[0048] Working principle and usage process of this invention:

[0049] After the operator installs the connecting plate 21 on the frame of the belt conveyor 1, the elastic support 25 is compressed by rotating the nut. One end of the elastic support 25 will push the lever 23 to rotate around the axis. At this time, the lever 23 will drive the support 26 and scraper 27 to rotate through the main shaft 22. At the same time, the spring telescopic rod 42 will be stretched, which will eventually make the cutter head of several sets of scrapers 27 fit against the conveyor belt surface on the belt conveyor 1. By setting several sets of supports 26 and scrapers 27, the problem that a set of straight scrapers cannot be completely overlapped with the conveyor belt surface can be solved.

[0050] If it is necessary to adjust the worn scraper 27 to better overlap the conveyor belt surface of the belt conveyor 1, the operator can insert the insertion rod 54 into the insertion hole 53 and drive the piston sleeve 51 to move by rotating the insertion hole 53. This allows the piston sleeve 51 to transport the hydraulic oil in the support sleeve 3 through the through hole 31 and the oil supply hole 45 to the sleeve part 43, thereby pushing several sets of piston heads 44, spring telescopic rods 42 and connecting seats 41 upward, so that the corresponding supports 26 and scraper 27 rotate and overlap the conveyor belt surface on the belt conveyor 1. This avoids the situation where the pressure of several sets of scrapers 27 on the conveyor belt surface during operation is uneven when rotating the nut on the single-sided limit rod 24.

[0051] When the operator inserts the insertion rod 54 into the insertion hole 53, it will first push the conical head 65 and the spring push rod 61 to move. At this time, the valve core 62 will drive the longitudinal hole 64 to connect with the corresponding oil supply hole 45 through the through hole 31. At this time, the cavities of several sets of sleeve parts 43 will all be connected to the support sleeve rod 3 through the corresponding oil supply hole 45, through hole 31, longitudinal hole 64, transverse hole 63, and the support sleeve rod 3. This ensures that when the support sleeve rod 3 pumps hydraulic oil into several sets of sleeve parts 43, the spring telescopic rod 42 is compressed to the same degree. This will make the pressure of several sets of scrapers 27 on the conveyor belt surface the same. After the adjustment is completed, when the spring push rod 61 and the valve core 62 are reset, several sets of valve cores 62 can block the corresponding through hole 31. This avoids the situation where a single set of spring telescopic rods 42 is compressed and pushes the piston head 44 to move, thus affecting the other sets of piston heads 44.

[0052] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0053] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A belt conveyor with an elastic cleaner, comprising a belt conveyor (1), characterized in that, Also includes: The cleaner mechanism (2) is installed on the belt conveyor (1); The cleaning mechanism (2) includes a set of connecting plates (21) installed on the head frame of the belt conveyor (1). A main shaft (22) is rotatably connected between the two connecting plates (21). Both ends of the main shaft (22) are fixedly sleeved with levers (23). A limit rod (24) is rotatably connected to the bottom of the outer side of the connecting plate (21). The rod body of the limit rod (24) can pass through the lever (23). An elastic support (25) and a nut are sleeved on the outer periphery of the limit rod (24). Both ends of the elastic support (25) abut against the nut and the lever (23) respectively. Several supports (26) are fixedly sleeved at equal intervals on the outer periphery of the main shaft (22). A scraper (27) that can fit against the belt surface of the belt conveyor (1) is fixedly connected to the top of the support (26). A support sleeve rod (3) is fixedly connected to the bottom between the two connecting plates (21). A telescopic rod mechanism (4) is hinged to the side of the support (26) facing away from the belt conveyor (1). The bottom of several telescopic rod mechanisms (4) is sleeved on the outer periphery of the support sleeve rod (3). One end of the support sleeve rod (3) is provided with an oil pressure regulating mechanism (5) for pumping hydraulic oil into the telescopic rod mechanism (4).

2. The belt conveyor with an elastic cleaner according to claim 1, characterized in that: The support (26) is made of high molecular polyurethane material.

3. The belt conveyor with an elastic cleaner according to claim 1, characterized in that: The support sleeve (3) is provided with a group of through holes at equal intervals. The group of through holes includes a number of through holes (31) arranged in a ring array on the support sleeve (3). The telescopic rod mechanism (4) includes a connecting seat (41) hinged to the support (26), a spring telescopic rod (42) fixedly connected to the bottom of the connecting seat (41), a plurality of sleeves (43) are equidistantly sleeved on the outer periphery of the support sleeve (3), an oil supply hole (45) is provided on the sleeve (43), the support sleeve (3) can communicate with the cavity of the sleeve (43) through the through hole (31) and the oil supply hole (45), a piston head (44) is fixedly connected to the bottom of the spring telescopic rod (42), and the piston head (44) is movably sleeved in the sleeve (43).

4. The belt conveyor with an elastic cleaner according to claim 3, characterized in that: An outer protective cylinder (411) is fixedly installed on the connecting seat (41), and the outer protective cylinder (411) is also movably sleeved on the upper middle part of the sleeve (43).

5. The belt conveyor with an elastic cleaner according to claim 3, characterized in that: The hydraulic pressure regulating mechanism (5) includes a plug rod (54) and a piston sleeve (51) movably sleeved on one end of the support sleeve (3). A threaded rod (52) is threadedly connected to the piston sleeve (51). The threaded rod (52) is rotatably connected to the end of the support sleeve (3). One end of the threaded rod (52) extends to the outside of the support sleeve (3) and the piston sleeve (51) and has a plug hole (53). The support sleeve (3) stores hydraulic oil, and the outer periphery of the piston sleeve (51) rod body is provided with splines, and the splines can cooperate with the inner wall of the support sleeve (3).

6. The belt conveyor with an elastic cleaner according to claim 5, characterized in that: The diameter of the piston end portion of the piston sleeve (51) is greater than the diameter of the cylinder portion of the sleeve (43).

7. The belt conveyor with an elastic cleaner according to claim 5, characterized in that: The support sleeve (3) is equipped with a valve core mechanism (6) for balancing and adjusting the support force of several telescopic rod mechanisms (4).

8. The belt conveyor with an elastic cleaner according to claim 7, characterized in that: The valve core mechanism (6) includes a spring push rod (61) movably sleeved in the support sleeve rod (3). One end of the spring push rod (61) is a spring and the spring is fixedly connected to the support sleeve rod (3). One end of the spring push rod (61) passes through the piston sleeve (51) and is provided with a conical head (65). Initially, the conical part of the conical head (65) is located in the insertion hole (53). Several valve core parts (62) are equidistantly arranged on the spring push rod (61). The valve core part (62) is provided with a transverse hole (63) and a longitudinal hole (64). One end of the transverse hole (63) and the longitudinal hole (64) are connected. Initially, the other end of the longitudinal hole (64) is blocked by the inner wall of the support sleeve rod (3). When the valve core part (62) moves, it can drive the longitudinal hole (64) to connect with the corresponding through hole (31).

9. The belt conveyor with an elastic cleaner according to claim 8, characterized in that: A spring-loaded column (521) is movably mounted on the threaded rod (52). When the spring-loaded column (521) is pressed and charged, it can push the conical head (65) out of the insertion hole (53).

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