Retractable pipe chain conveyor

Abstract

The invention relates to the technical field of pipe chain conveyors, in particular to a retractable pipe chain conveyor which comprises a chain belt tensioning adjusting mechanism, two sets of retractable conveying mechanisms arranged in the chain belt tensioning adjusting mechanism and four sets of distance control mechanisms arranged on the two sets of retractable conveying mechanisms. The material body loosening mechanism is arranged in the chain belt tensioning adjusting mechanism; the chain belts are arranged in the chain belt tensioning adjusting mechanism and the two groups of telescopic material conveying mechanisms; the chain belt tensioning adjusting mechanism comprises two first machine covers, two second machine covers and two third machine covers. The third machine cover is used as the center of distance adjustment, when the four sets of distance control mechanisms are finely adjusted, the two sets of telescopic material conveying mechanisms with the third machine cover as the center can transversely push the first machine cover and the second machine cover outwards, and at the moment, the feeding paths of the material input end and the material discharge end can be lengthened; therefore, the device can freely adjust the extension length of the two ends of the materials so as to meet the actual conveying requirement of the materials.

Description

Technical Field

[0001] The invention relates to the technical field of tube chain conveyors, in particular to a retractable tube chain conveyor. Background Art

[0002] The tube chain conveyor is a continuous conveying equipment for conveying bulk materials such as powder, small particles and small blocks. In a closed pipeline, the chain is used as a transmission component to drive the material to move along the pipeline.

[0003] The existing pipe chain conveyor still has certain drawbacks during actual use. Since the chain is rotating in a closed pipe, once the material is affected by the humid air in the room, the material will clump due to the increase in moisture. In severe cases, it will cause the pipe to be blocked. As the blockage worsens, the chain that is continuously under pressure will break due to the increase in pressure. At the same time, this prefabricated pipe cannot freely expand and contract to the specified position for material transportation.

[0004] In view of this, a retractable tube chain conveyor is designed to solve the above problems. Summary of the invention

[0005] The present invention aims to solve one of the technical problems existing in the prior art or related technology.

[0006] To this end, the technical solution adopted in the present invention is: A retractable tube chain conveyor comprises a chain belt tensioning adjustment mechanism, two groups of telescopic feeding mechanisms arranged in the chain belt tensioning adjustment mechanism, four groups of distance control mechanisms arranged on the two groups of telescopic feeding mechanisms, a material body loosening mechanism arranged in the chain belt tensioning adjustment mechanism, and chains arranged in the chain belt tensioning adjustment mechanism and the two groups of telescopic feeding mechanisms; the chain belt tensioning adjustment mechanism comprises two first machine covers, two second machine covers and two third machine covers, and the two first machine covers, the two second machine covers and the two third machine covers are all provided with stabilizing linkage parts and anti-dropping linkage parts; the The telescopic feeding mechanism includes a second storage tube, two fourth storage tubes arranged inside the second storage tube, a first storage tube arranged at the outer end of one of the fourth storage tubes, and a third storage tube arranged at the outer end of the other fourth storage tube; pressure-bearing linkage parts are arranged in both of the four storage tubes; the distance control mechanism is used to adjust the distance between the first storage tube and the third storage tube; the material loosening mechanism is used to provide an effective conveying path for the material and actively loosen the material; the chain belt transmission is connected to the stabilization linkage part, the anti-slip linkage part and the pressure-bearing linkage part, and is used to effectively transfer the material in the path.

[0007] In a preferred example, the present invention can be further configured as follows: the material loosening mechanism includes a horizontal rail arranged in two first machine covers, two second machine covers and two third machine covers, a sealing plate is arranged at one end of the horizontal rail, a supporting leg is installed at the outer end of the sealing plate, and a transmission assembly is arranged at the bottom of the horizontal rail; A crankshaft is movably mounted at the bottom of the leg; The transmission assembly is composed of a chassis and a motor, and the other end of the crankshaft is connected to the transmission shaft of the motor; A clamp is movably mounted on the crankshaft, two ends of the clamp are connected to two inclined frames, and a shock plate is movably mounted on the top of the two inclined frames; The inner wall of the horizontal rail is provided with a plurality of groups of compression springs which are symmetrically distributed, and the other ends of the compression springs are connected to the vibration material plate.

[0008] In a preferred example, the present invention can be further configured as follows: the first hood, the second hood and the third hood are each provided with a slot, and two symmetrically distributed brush pieces are installed in the slot; The brush heads at the inner ends of two adjacent brush plates are symmetrical to each other, and the brush heads and the chain plates in the chain belt have the same rotation path.

[0009] In a preferred example, the present invention can be further configured as follows: the shock plate is composed of an L-shaped slider and an arc-shaped baffle, and the bottom end of the arc-shaped baffle is adapted to fit the bottom surface of the inner side of the horizontal rail, and the inner wall of the arc-shaped baffle is a smooth coating; Two sliding grooves are provided inside the sealing plate, and the L-shaped sliding blocks are movably installed in the two sliding grooves of the sealing plate.

[0010] In a preferred example, the present invention can be further configured as follows: the chain belt tensioning and adjusting mechanism further includes six groups of traction components; The traction assembly includes a base, a limit frame arranged at the top of the base, a support rod arranged inside the limit frame, a first spring arranged outside the support rod, and a clamp movably installed at the bottom end of the support rod; The bottom of the clamp is installed on the anti-dropping linkage part.

[0011] In a preferred example, the present invention can be further configured as follows: the chain belt tensioning and adjusting mechanism further includes three pre-tensioning components; The pre-tightening assembly comprises a supporting plate installed at the top end of the support rod, a screw sleeve is arranged in the middle of the supporting plate, a screw rod is arranged inside the screw sleeve, and a base is movably installed at the bottom end of the screw rod.

[0012] In a preferred example, the present invention can be further configured as follows: the chain belt tensioning and adjusting mechanism further includes a plurality of end posts; The inner walls of the first hood and the second hood are both provided with two symmetrically distributed end columns; The inner wall of the third hood is provided with four symmetrically distributed end columns.

[0013] In a preferred example, the present invention can be further configured as follows: the anti-dropout linkage component is composed of two rectangular pads, two shafts and two gears.

[0014] In a preferred example, the present invention can be further configured as follows: the telescopic feeding mechanism further includes two first sheaths and one second sheath; One of the first sheaths is installed on the first warehouse tube, another of the first sheaths is installed on the third warehouse tube, and the second sheath is installed on the second warehouse tube; The first sheath and the second sheath are both provided with a crossbar inside; A second spring is arranged on the crossbar in the first sheath, and two third springs are arranged on the crossbar in the second sheath.

[0015] In a preferred example, the present invention can be further configured as follows: the distance control mechanism includes a screw rod, a nut is arranged on the threaded section of the screw rod, and a fourth spring is arranged outside the screw rod; A pressing plate is arranged on the threaded section of the screw rod, two ends of the pressing plate are movably mounted with two symmetrically distributed support frames, and the other end of the support frame is movably mounted with a cushion block.

[0016] By adopting the above technical solution, the beneficial effects achieved by the present invention are: 1. The present invention uses the third hood as the distance adjustment center. When the four sets of distance control mechanisms are fine-tuned, the two sets of telescopic feeding mechanisms centered on the third hood can push the first hood and the second hood outward respectively. At this time, the feeding paths at the material input end and the discharge end can be extended, so that the device can freely adjust the extension length of the material at both ends to meet the actual material transportation needs.

[0017] 2. The present invention arranges horizontal rails inside the three hoods, and arranges two symmetrically distributed vibration plates in the middle of the inner side of the rails. As the material passes through the rails to the end outside the first hood and is poured out, the material actively loosened by the two vibration plates will be vibrated and moved into the first hood. Finally, the chain belt driven by the external driving device can actively and effectively transfer the loosened material, thereby avoiding the agglomeration and clogging of the material during the transfer due to increased humidity.

[0018] 3. The present invention arranges a plurality of evenly distributed brushes in the three exposed slots of the hoods, and keeps the brush heads at the inner ends of the brushes consistent with the path of the chain pieces in the chain belt. As the chain belt circulates, the evenly distributed chain pieces can be pressurized and brushed by multiple groups of brushes in turn. At this time, the materials adhered to the brush pieces can be effectively removed, thereby avoiding the subsequent mixing of other types of materials due to the residual brush pieces. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the present invention when used; Figure 2 It is an exploded schematic diagram of the chain belt tensioning and adjusting mechanism of the present invention; Figure 3 For the present invention Figure 2 Schematic diagram of the explosion at A in the middle; Figure 4 For the present invention Figure 2 Schematic diagram of the explosion at B in the middle; Figure 5 It is an exploded schematic diagram of the traction assembly of the present invention; Figure 6 It is a partial schematic diagram of the present invention; Figure 7 For the present invention Figure 6 The enlarged schematic diagram of the center C; Figure 8 It is a schematic diagram of the material loosening mechanism of the present invention; Fig. 9 It is a schematic diagram of the telescopic feeding mechanism of the present invention; Fig.10 It is a schematic diagram of the distance control mechanism of the present invention.

[0020] Reference numerals: 100, chain belt tensioning adjustment mechanism; 110, first machine cover; 120, second machine cover; 130, third machine cover; 140, traction assembly; 141, base; 142, limit frame; 143, support rod; 144, first spring; 145, chuck; 150, pre-tightening assembly; 151, base; 152, screw rod; 153, screw sleeve; 154, support plate; 160, brush piece; 170, end column; 180, stabilizing linkage; 190, anti-drop linkage; 200, telescopic feeding mechanism; 210, first storage tube; 220, second storage tube; 230, third storage tube; 240, first sheath; 250, second sheath; 260, second spring; 270, third spring; 280, fourth storage tube; 290, pressure-bearing linkage member; 300, distance control mechanism; 310, screw rod; 320, nut; 330, fourth spring; 340, pressure plate; 350, support frame; 360, cushion block; 400, material loosening mechanism; 410, horizontal rail; 420, sealing plate; 430, supporting leg; 440, crankshaft; 450, transmission assembly; 460, clamp; 470, inclined frame; 480, shock plate; 490, compression spring; 500. Chain belt. DETAILED DESCRIPTION

[0021] To make the purpose, technical solution and advantages of the present invention more clear, the present invention is further described in detail below in combination with specific implementations and with reference to the accompanying drawings. It should be noted that the embodiments of the present invention and the features in the embodiments can be combined with each other without conflict.

[0022] It is to be understood that these descriptions are exemplary only and are not intended to limit the scope of the invention.

[0023] A retractable tube chain conveyor provided by some embodiments of the present invention will be described below in conjunction with the accompanying drawings.

[0024] Embodiment 1: Combination Figure 1-Figure 10 As shown, a retractable tube chain conveyor provided by the present invention includes a chain belt tensioning adjustment mechanism 100, two groups of telescopic feeding mechanisms 200 arranged in the chain belt tensioning adjustment mechanism 100, four groups of distance control mechanisms 300 arranged on the two groups of telescopic feeding mechanisms 200, a material body loosening mechanism 400 arranged in the chain belt tensioning adjustment mechanism 100, and a chain belt 500 arranged in the chain belt tensioning adjustment mechanism 100 and the two groups of telescopic feeding mechanisms 200. The chain belt tensioning adjustment mechanism 100 is used to cooperate with the two groups of telescopic feeding mechanisms 200 to provide a telescopic path for material transportation, the distance control mechanism 300 is used to provide distance adjustment kinetic energy for the telescopic feeding mechanism 200, the material body loosening mechanism 400 is used to provide a conveying platform for different materials and actively loosen the materials, and the chain belt 500 is used to actively loosen the materials.

[0025] The chain belt tensioning adjustment mechanism 100 includes two first machine covers 110, two second machine covers 120, two third machine covers 130 and multiple end posts 170. The two first machine covers 110, the two second machine covers 120 and the two third machine covers 130 are all provided with a stabilizing linkage 180 and an anti-dropping linkage 190. The inner walls of the first hood 110 and the second hood 120 are both provided with two symmetrically distributed end posts 170; The inner wall of the third hood 130 is provided with four symmetrically distributed end posts 170; The first hood 110, the second hood 120 and the third hood 130 are all provided with slots inside, and two symmetrically distributed brush pieces 160 are installed in the slots; The brush heads at the inner ends of two adjacent brush plates 160 are symmetrical to each other, and the brush heads and the chain plates in the chain belt 500 have the same rotation path; The telescopic feeding mechanism 200 includes a second storage tube 220, two fourth storage tubes 280 disposed inside the second storage tube 220, a first storage tube 210 disposed at the outer end of one of the fourth storage tubes 280, and a third storage tube 230 disposed at the outer end of the other fourth storage tube 280; The two fourth storage tubes 280 are both provided with pressure-bearing linkage members 290; the distance control mechanism 300 is used to adjust the distance between the first storage tube 210 and the third storage tube 230; The distance control mechanism 300 includes a screw rod 310, a nut 320 is arranged on the threaded section of the screw rod 310, and a fourth spring 330 is arranged outside the screw rod 310; A pressing plate 340 is provided on the threaded section of the screw rod 310, two ends of the pressing plate 340 are movably mounted with two symmetrically distributed support frames 350, and a cushion block 360 is movably mounted on the other end of the support frame 350; The material loosening mechanism 400 is used to provide an effective conveying path for the material and actively loosen the material; The chain belt 500 is drivingly connected to the stabilizing linkage member 180, the anti-slip linkage member 190 and the pressure-bearing linkage member 290, and is used to effectively transfer the materials in the path.

[0026] The port of the external material conveying pipeline is set just above the two vibrating plates 480. When the external material conveying pipeline pours the material toward the inside of the two vibrating plates 480, the running motor can drive the crankshaft 440 to rotate at a high speed. At this time, the clamp 460 will drive the two inclined frames 470 to stretch at a high frequency. Finally, the two vibrating plates 480 can vibrate at a high frequency along the two slideways in the sealing plate 420. At this time, the material inside the two vibrating plates 480 can be actively loosened. After the material is actively loosened, the loosened material will be transferred to the inner cavity of the two first machine covers 110. At this time, the chain belt 500 driven by the external driving device can transfer the loosened material to the third machine cover 130 and the second machine cover 120, and finally the transferred material can be discharged to the designated position; When it is necessary to freely adjust the material conveying path, multiple sets of distance control mechanisms 300 can be selected to adjust until the two sets of telescopic feeding mechanisms 200 freely extend outward with the third machine cover 130 as the center. At this time, the length of the material input end and the discharge end can be freely controlled. In addition, the chain belt 500 passively brushed by multiple brushes 160 can be effectively cleaned during rotation. Finally, after the chain belt 500 is cleaned, it will not cause mixing to the subsequent types of materials. At this time, the transferred materials will not be affected by the indoor humidity and cause caking and clogging in the conveying channel. Embodiment 2: Combination Figure 2-Figure 5 As shown, based on the first embodiment, the chain belt tensioning and adjusting mechanism 100 further includes six groups of traction components 140 and three pre-tensioning components 150; The traction assembly 140 includes a base 141 , a limit frame 142 disposed at the top of the base 141 , a support rod 143 disposed inside the limit frame 142 , a first spring 144 disposed outside the support rod 143 , and a clamp 145 movably mounted at the bottom end of the support rod 143 .

[0027] Preferably, the limit frame 142 is fixed to the inner side of the base 141 by welding, and the top end of the first spring 144 is adapted to bear pressure on the bottom of the limit frame 142 , while the bottom end of the first spring 144 is adapted to bear pressure on the anti-detachment linkage 190 .

[0028] The bottom of the chuck 145 is mounted on the anti-drop linkage 190; The pre-tightening assembly 150 includes a support plate 154 installed at the top of the support rod 143, a screw sleeve 153 is provided in the middle of the support plate 154, a screw rod 152 is provided inside the screw sleeve 153, and a base 151 is movably installed at the bottom end of the screw rod 152; The anti-dropping linkage member 190 is composed of two rectangular pads, two shafts and two gears.

[0029] Preferably, the three bases 151 are respectively installed in the two first hoods 110, the two second hoods 120 and the two third hoods 130, and the end of the bottom of the pre-tightening assembly 150 is movably installed inside the base 151; As the rotating wheel at the top of the screw rod 152 rotates, the screw sleeve 153 and the support plate 154 will move up and down along the threaded section of the screw rod 152. At this time, the two support rods 143 installed at both ends of the support plate 154 will exert active traction on the anti-slip linkage 190. At this time, the three raised parts of the chain belt 500 located in the two first machine covers 110, the two second machine covers 120 and the third machine cover 130 can be properly tensioned and regulated; The chain belt 500 that is actively tensioned by the anti-slip linkage member 190 can cooperate with two adjacent brush plates 160 to automatically clean the chain plates.

[0030] Embodiment 3: Combination Figure 2 and Fig. 9 As shown, based on the first embodiment, the telescopic feeding mechanism 200 further includes two first sheaths 240 and one second sheath 250; One of the first sheaths 240 is installed on the first storage tube 210, another first sheath 240 is installed on the third storage tube 230, and the second sheath 250 is installed on the second storage tube 220; The first sheath 240 and the second sheath 250 are both provided with a cross bar inside; A second spring 260 is disposed on the cross bar in the first sheath 240 , and two third springs 270 are disposed on the cross bar in the second sheath 250 .

[0031] Preferably, the number of the first storage tube 210 and the third storage tube 230 is two, one of the first storage tubes 210 is installed at the inner end of the two first machine covers 110, the other first storage tube 210 is installed at the inner end of the two second machine covers 120, and the two third storage tubes 230 are installed at both ends of the two third machine covers 130; The tops of both ends of the fourth storage tube 280 are provided with raised slide plates, and two adjacent raised slide plates are movably installed on the outside of the cross bar.

[0032] Embodiment 4: Combination Figure 2-Figure 8 As shown, in the above embodiment, the material loosening mechanism 400 includes a horizontal rail 410 arranged in two first machine covers 110, two second machine covers 120 and two third machine covers 130, a sealing plate 420 is arranged at one end of the horizontal rail 410, a leg 430 is installed at the outer end of the sealing plate 420, and a transmission assembly 450 is arranged at the bottom of the horizontal rail 410; A crankshaft 440 is movably mounted at the bottom of the leg 430; The transmission assembly 450 is composed of a chassis and a motor, and the other end of the crankshaft 440 is connected to the transmission shaft of the motor.

[0033] Preferably, the chassis is fixedly mounted on the bottom of the horizontal rail 410 by welding or bolts, and a heat dissipation slot is opened in the chassis, and a wire is connected to the connector of the motor, and the wire is connected to the external power supply; A bearing is disposed in the notch at the bottom end of the leg 430 , and an end of the crankshaft 440 away from the motor is installed in the bearing.

[0034] A clamp 460 is movably mounted on the crankshaft 440 , and two ends of the clamp 460 are connected to two inclined frames 470 , and a shock plate 480 is movably mounted on the top of the two inclined frames 470 .

[0035] Preferably, the two vibration plates 480 are attached to the bottom surface of the inner side of the horizontal rail 410 to form a U-shaped material conveying trough. When the material is poured into the U-shaped material conveying trough, the two vibration plates 480 which are in high-frequency vibration can actively loosen the material, and finally the loosened material will be transferred to the inner cavity of the two first machine covers 110, and then it will be convenient to be actively transferred by the chain belt 500.

[0036] The inner wall of the horizontal rail 410 is equipped with a plurality of symmetrically distributed compression springs 490, and the other end of the compression spring 490 is connected to the shock plate 480; The shock plate 480 is composed of an L-shaped slider and an arc-shaped baffle, and the bottom end of the arc-shaped baffle is adapted to fit the bottom surface of the inner side of the horizontal rail 410, and the inner wall of the arc-shaped baffle is a smooth coating; Two slide grooves are provided inside the sealing plate 420 , and the L-shaped sliding blocks are movably installed in the two slide grooves of the sealing plate 420 .

[0037] The multiple groups of compression springs 490 arranged on the inner wall of the horizontal rail 410 are used to provide sufficiently stable elastic support force for the two vibration plates 480 to reset. With the high-frequency vibration of the two vibration plates 480, the multiple groups of compression springs 490 can not only improve the balance of the vibration amplitude, but also cooperate with the sealing plate 420 to gather the materials in the center.

[0038] The working principle and use process of the present invention are as follows: the external material delivery pipeline is pre-arranged just above one end of the horizontal rail 410 close to the support leg 430, and the port of the material delivery pipeline is arranged in the middle of the two vibration plates 480; As the external material delivery pipe pours the material into the gap inside the two vibration plates 480, the motor in the transmission assembly 450 is in the starting state, and the motor drives the crankshaft 440 to rotate at a high speed, and the clamp 460 movably installed outside the crankshaft 440 drives the two inclined frames 470 to reciprocate and rise and fall. At the same time, the two vibration plates 480 loosen the material, and the loosened part of the material will be transferred to the inside of the first hood 110; At the moment when the material enters the inner cavity of the first hood 110, the chain belt 500 driven by the external driving force can effectively transfer the loose material along the inner side of the two vibration plates 480. With the high-frequency vibration of the two vibration plates 480, the actively transferred material can avoid agglomeration or adhesion. Finally, the material will pass through the third hood 130 and the second hood 120 in turn and finally be transferred to the designated position. In order to adjust the material conveying distance of the device, a wrench can be used to selectively adjust multiple nuts 320. As the nuts 320 effectively move laterally along the outside of the screw rod 310, the horizontally pushed pressure plate 340 will simultaneously apply extrusion force to the two brackets 350, and finally the two brackets 350 will push the two cushion blocks 360 to expand outward, and the first warehouse tube 210, the second warehouse tube 220 and the third warehouse tube 230 installed on the two groups of cushion blocks 360 will be effectively moved outward laterally under pressure until the first warehouse tube 210, the second warehouse tube 220 and the third warehouse tube 230 extend outward at equal intervals along the two fourth warehouse tubes 280, and finally the two groups of telescopic feeding mechanisms 200 can respectively push the first hood 110 and the second hood 120 to extend outward with the third hood 130 as the center; As the two sets of telescopic feeding mechanisms 200 extend, the three screw rods 152 need to be rotated counterclockwise until the screw sleeve 153 and the support plate 154 fall downward along the screw rod 152, and finally the two support rods 143 and the two clamps 145 installed in the support plate 154 will push the anti-slip linkage 190 to fall down until the chain belt 500 relaxes accordingly with the extension of the two sets of telescopic feeding mechanisms 200; The plurality of brushes 160 disposed on the first hood 110, the second hood 120 and the third hood 130 and rising and falling accordingly with the chain belt 500 can also clean the pusher plate on the chain belt 500; This device can realize free adjustment of the extension length of the feeding end and the discharging end, and can also avoid the problem of material sticking due to increased indoor humidity during material transportation. When conveying different materials, there will be no mixing due to residual materials on the surface of the chain belt 500.

[0039] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A retractable tube chain conveyor, comprising a chain belt tensioning adjustment mechanism (100), characterized in that: It also includes two sets of telescopic material conveying mechanisms (200) arranged in the chain belt tensioning adjustment mechanism (100), four sets of distance control mechanisms (300) arranged on the two sets of telescopic material conveying mechanisms (200), a material body loosening mechanism (400) arranged in the chain belt tensioning adjustment mechanism (100), and a chain belt (500) arranged in the chain belt tensioning adjustment mechanism (100) and the two sets of telescopic material conveying mechanisms (200); The telescopic material conveying mechanism (200) comprises a second storage tube (220), two fourth storage tubes (280) arranged inside the second storage tube (220), a first storage tube (210) arranged at the outer end of one of the fourth storage tubes (280), and a third storage tube (230) arranged at the outer end of another fourth storage tube (280); The two fourth storage tubes (280) are both provided with a pressure-bearing linkage member (290); The distance control mechanism (300) is used to adjust the distance between the first storage tube (210) and the third storage tube (230); The material loosening mechanism (400) is used to provide an effective conveying path for the material and to actively loosen the material; The chain belt (500) is drivingly connected to the stabilizing linkage part (180), the anti-slip linkage part (190) and the pressure-bearing linkage part (290) and is used to effectively transfer materials within the path.

2. A retractable tube chain conveyor according to claim 1, characterized in that: The chain belt tensioning adjustment mechanism (100) comprises two first hoods (110), two second hoods (120) and two third hoods (130), and the two first hoods (110), the two second hoods (120) and the two third hoods (130) are each provided with a stabilizing linkage component (180) and an anti-slip linkage component (190).

3. The retractable tube chain conveyor according to claim 1, characterized in that: The material loosening mechanism (400) comprises a horizontal rail (410) arranged in two first machine covers (110), two second machine covers (120) and two third machine covers (130); a sealing plate (420) is arranged at one end of the horizontal rail (410); a supporting leg (430) is installed at the outer end of the sealing plate (420); and a transmission assembly (450) is arranged at the bottom of the horizontal rail (410); A crankshaft (440) is movably mounted on the bottom of the support leg (430); The transmission assembly (450) is composed of a chassis and a motor, and the other end of the crankshaft (440) is connected to the transmission shaft of the motor; A clamp (460) is movably mounted on the crankshaft (440), two ends of the clamp (460) are connected to two inclined frames (470), and a vibration plate (480) is movably mounted on the top ends of the two inclined frames (470); The inner wall of the horizontal rail (410) is installed with a plurality of groups of symmetrically distributed compression springs (490), and the other ends of the compression springs (490) are connected to the vibration plate (480).

4. The retractable tube chain conveyor according to claim 2, characterized in that: The first hood (110), the second hood (120) and the third hood (130) are all provided with slots inside, and two symmetrically distributed brush plates (160) are installed in the slots; The brush heads at the inner ends of two adjacent brush plates (160) are symmetrical to each other, and the brush heads and the inner chain plates of the chain belt (500) have the same rotation path.

5. The retractable tube chain conveyor according to claim 3, characterized in that: The vibration plate (480) is composed of an L-shaped sliding block and an arc-shaped baffle, and the bottom end of the arc-shaped baffle is adapted to fit the bottom surface of the inner side of the horizontal rail (410), and the inner wall of the arc-shaped baffle is a smooth coating; Two sliding grooves are provided inside the sealing plate (420), and the L-shaped sliding blocks are movably installed in the two sliding grooves of the sealing plate (420).

6. The retractable tube chain conveyor according to claim 1, characterized in that: The chain belt tensioning and adjusting mechanism (100) further comprises six groups of traction components (140); The traction assembly (140) comprises a base (141), a limit frame (142) arranged at the top of the base (141), a support rod (143) arranged inside the limit frame (142), a first spring (144) arranged outside the support rod (143), and a clamp (145) movably mounted at the bottom end of the support rod (143); The bottom of the clamp (145) is mounted on the anti-drop linkage component (190).

7. The retractable tube chain conveyor according to claim 1, characterized in that: The chain belt tensioning and adjusting mechanism (100) further comprises three pre-tensioning components (150); The pre-tightening assembly (150) comprises a support plate (154) mounted on the top end of the support rod (143), a screw sleeve (153) is arranged in the middle of the support plate (154), a screw rod (152) is arranged inside the screw sleeve (153), and a base (151) is movably mounted on the bottom end of the screw rod (152).

8. The retractable tube chain conveyor according to claim 2, characterized in that: The chain belt tensioning and adjusting mechanism (100) further comprises a plurality of end posts (170); The inner walls of the first hood (110) and the second hood (120) are both provided with two symmetrically distributed end columns (170); The inner wall of the third hood (130) is provided with four symmetrically distributed end posts (170); The anti-drop linkage component (190) is composed of two rectangular cushion blocks, two shaft rods and two gears.

9. The retractable tube chain conveyor according to claim 1, characterized in that: The telescopic feeding mechanism (200) further comprises two first protective sleeves (240) and a second protective sleeve (250); One of the first sheaths (240) is installed on the first storage tube (210), another of the first sheaths (240) is installed on the third storage tube (230), and the second sheath (250) is installed on the second storage tube (220); A crossbar is disposed inside the first sheath (240) and the second sheath (250); A second spring (260) is arranged on the crossbar in the first protective sleeve (240), and two third springs (270) are arranged on the crossbar in the second protective sleeve (250).

10. The retractable tube chain conveyor according to claim 1, characterized in that: The distance control mechanism (300) comprises a screw rod (310), a nut (320) is arranged on the threaded section of the screw rod (310), and a fourth spring (330) is arranged outside the screw rod (310); A pressing plate (340) is provided on the threaded section of the screw rod (310), two symmetrically distributed support frames (350) are movably mounted at both ends of the pressing plate (340), and a cushion block (360) is movably mounted at the other end of the support frame (350).

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