A trolley case caster assembly

Abstract

The present invention belongs to the technical field of casters, and specifically is a suitcase caster assembly, comprising a mounting plate, a lower surface of the mounting plate is rotatably connected to a connecting seat, a two-way bearing is fixedly connected inside the connecting seat, a moving wheel is rotatably provided on the circumferential surface of the two-way bearing, two ends of the connecting seat are bolted with hexagonal bolts, the moving wheel is fixedly limited on the two-way bearing by the hexagonal bolts, a positioning groove is provided on the side wall of the hexagonal bolt away from one end of the two-way bearing, a storage rack is fixedly connected to the surface of the connecting seat, a scraper is slidably connected to the inside of the storage rack, one end of the scraper is fitted with the circumferential surface of the moving wheel, the cross-sectional shape of the scraper is set to an isosceles hexagon, and the upper surface of one end of the scraper is fixedly connected to a fixing frame, debris can be quickly cleaned up by the inclined surface of the scraper and gravity, thereby improving the cleanliness of the surface of the moving wheel.

Description

Technical Field

[0001] The invention belongs to the technical field of casters, in particular to a suitcase caster assembly. Background Art

[0002] Suitcase casters are a type of wheel, usually installed at the bottom of a suitcase, used to support and move the suitcase. Suitcase casters are an important component of the suitcase and have a great impact on the user experience and safety of the suitcase. Therefore, when choosing a suitcase, the quality and performance of the casters are also important factors to consider.

[0003] A patent application with publication number CN110916320A discloses a directional caster for a suitcase, comprising a caster seat, a swivel connector, and a connecting column; the caster seat is provided with a first accommodating groove for accommodating the first end of the swivel connector; a positioning member including a first positioning protrusion and a second positioning protrusion is provided inside the first end; the first positioning protrusion and the second positioning protrusion pass through the first through hole and the second through hole, and can be retracted therein; a limiting groove is provided on the inner wall of the first accommodating groove. The above invention can limit the forward direction of the caster, which is helpful for people to grasp the forward direction of the suitcase.

[0004] In the above-mentioned prior art, when in use, the surface of the caster may be affected by environmental factors, resulting in the adhesion of debris, such as mud, etc., to the surface, making the suitcase slide unsmoothly, and when the caster is damaged, it cannot be quickly disassembled and replaced.

[0005] To this end, the present invention provides a trolley case caster assembly. Summary of the invention

[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0007] The technical solution adopted by the present invention to solve its technical problem is: a trolley case caster assembly described in the present invention comprises a mounting plate, the lower surface of the mounting plate is rotatably connected to a connecting seat, the interior of the connecting seat is fixedly connected to a two-way bearing, a moving wheel is rotatably provided on the circumferential surface of the two-way bearing, bolts at both ends of the connecting seat are connected to hexagonal bolts, the moving wheel is fixedly limited to the two-way bearing by the hexagonal bolts, a positioning groove is provided on the side wall of the hexagonal bolt away from one end of the two-way bearing, the surface of the connecting seat is fixedly connected to a storage rack, the interior of the storage rack is slidably connected to a scraper, one end of the scraper is fitted with the circumferential surface of the moving wheel, the cross-sectional shape of the scraper is set to an isosceles hexagon, the upper surface of one end of the scraper is fixedly connected to a fixing frame, the top of the fixing frame is fixedly connected to a hexagonal remover, and the sizes of the hexagonal remover and the scraper are matched with the sizes of the positioning groove.

[0008] Preferably, a storage groove is provided inside the storage rack, the inner wall of the storage groove is slidably connected to the surface of the scraper, and the size of the storage groove matches the size of the scraper.

[0009] Preferably, one side of the storage rack is fixedly connected to a limiting rack, one end of the limiting rack is symmetrically slidably connected to a limiting rod inside, one end of the limiting rod is fixedly connected to a push plate, and a first spring is fixedly connected between one end of the limiting rod and the inside of the limiting rack.

[0010] Preferably, the inner wall of the scraper is symmetrically fixedly connected with a fixed plate, a fixed rod is fixedly connected between the two fixed plates, both ends of the fixed rod are provided with a slide groove, and the slide groove is provided with two tracks, the inside of the two slide grooves are slidably connected with a slider, the inside of the slider is fixedly connected with a moving rod, one end of each moving rod is fixedly connected with a baffle, the scraper is rotatably connected with a rotating rod, the two ends of the rotating rod are symmetrically fixedly connected with a turntable, the inside of the turntable is provided with an arc groove, and the arc groove is provided with two tracks, a feed groove is provided on one side of the scraper, and a discharge groove is provided on the lower surface of the scraper, and the sizes of the discharge groove and the feed groove match the size of the baffle.

[0011] Preferably, the shape of the moving rod is set to be T-shaped, one end of the moving rod is slidably connected to the inside of the arc-shaped groove, and the size of the moving rod matches the size of the arc-shaped groove.

[0012] Preferably, the feed chute is arranged at an angle.

[0013] Preferably, a support frame is fixedly connected to the upper surface of the limit plate, one end of the support frame is slidably connected to the limit block, and limit grooves are provided on both sides of the fixed frame, and the size of the limit grooves matches the size of the limit block.

[0014] Preferably, a third spring is fixedly connected between one end of the support frame and the limiting block.

[0015] Preferably, a movable plate is slidably connected to the interior of the fixed frame, a transmission rod is symmetrically fixedly connected to the upper surface of the movable plate, and one end of the transmission rod is shaped as an arc, one end of the transmission rod is fitted with the lower surface of the limit block, the limit block is shaped as a right-angled trapezoid, the lower surface of the movable plate is fixedly connected to a transmission plate, one end of the transmission plate is rotatably connected to a connecting rod, one end of the connecting rod is rotatably connected to a cam, and the interior of the cam is fixedly connected to one end of the rotating rod.

[0016] Preferably, a raised plate is fixedly connected to the lower surface of the movable plate, a sliding rod is slidably connected inside the raised plate, the sliding rod is fixedly connected to the inner wall of the fixed frame, and a second spring is fixedly connected between one end of the sliding rod and the raised plate.

[0017] The beneficial effects of the present invention are as follows:

[0018] 1. The trolley case caster assembly described in the present invention is provided with a scraper, which can automatically clean up the debris on the surface of the moving wheel. At the same time, when the moving wheel rotates in the direction of the scraper, the debris scraped off the surface of the moving wheel enters the interior of the scraper through the feed trough, and finally can be automatically discharged from the bottom of the discharge trough. When the moving wheel rotates in the opposite direction of the scraper, the debris on the moving wheel is cleaned by the scraper, and the debris can be quickly cleaned up by the inclined surface of the scraper and gravity, thereby improving the cleanliness of the surface of the moving wheel and avoiding the problem that debris such as sand, soil or other fine particles are attached to the surface of the caster, resulting in additional resistance when the wheel rotates, making the rotation inflexible.

[0019] 2. The trolley case caster assembly described in the present invention sets the shape of the scraper to a regular hexagon and matches the shape of the hexagonal remover. When disassembly is required, the scraper can be pulled out and one end of the scraper or the hexagonal remover can be inserted into the interior of the positioning groove. At this time, the hexagonal bolt can be removed to cancel the limit on the moving wheel. Subsequently, the moving wheel can be removed from the two-way bearing and then replaced with a new moving wheel and re-secured. The scraper can be used as a disassembly tool, which reduces the tool cost and the complexity of carrying, facilitates the disassembly and replacement of the moving wheel, and improves the efficiency of disassembly and replacement of the moving wheel. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described below in conjunction with the accompanying drawings.

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 It is an exploded view of the overall structure of the present invention;

[0023] Figure 3 The present invention Figure 2 A partial enlarged view of the middle part;

[0024] Figure 4 It is a structural schematic diagram of the moving wheel and the scraper of the present invention;

[0025] Figure 5 is a side structural sectional view of the present invention;

[0026] Figure 6 It is an exploded view of the internal structure of the scraper of the present invention;

[0027] Figure 7 is a cross-sectional view of the internal structure of the fixing frame of the present invention;

[0028] In the figure: 1. mounting plate; 2. connecting seat; 21. bidirectional bearing; 22. connecting groove; 23. storage rack; 24. storage groove; 25. limiting rack; 26. limiting rod; 27. first spring; 28. push plate; 3. moving wheel; 4. hexagonal bolt; 41. positioning groove; 5. scraper; 51. fixing rack; 52. hexagonal remover; 53. fixing plate; 54. fixing rod; 55. slide groove; 56. slider; 57. moving rod; 58. baffle; 59. rotating rod; 510. rotating disk; 511. arc groove; 512. discharge trough; 513. feeding trough; 514. supporting frame; 515. limiting block; 516. moving plate; 517. transmission rod; 518. transmission plate; 519. connecting rod; 520. cam; 521. slide rod; 522. second spring; 523. third spring. DETAILED DESCRIPTION

[0029] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0030] Embodiment 1

[0031] like Figure 1 to Figure 2 As shown, a trolley case caster assembly described in an embodiment of the present invention includes a mounting plate 1, a connecting seat 2 is rotatably connected to the lower surface of the mounting plate 1, a two-way bearing 21 is fixedly connected inside the connecting seat 2, a moving wheel 3 is rotatably provided on the circumferential surface of the two-way bearing 21, and the moving wheel 3 is made of PU material, hexagonal bolts 4 are bolted at both ends of the connecting seat 2, and the moving wheel 3 is fixedly limited on the two-way bearing 21 by the hexagonal bolts 4, and a positioning groove 41 is provided on the side wall of the hexagonal bolt 4 away from the end of the two-way bearing 21, a storage rack 23 is fixedly connected to the surface of the connecting seat 2, a scraper 5 is slidably connected to the inside of the storage rack 23, one end of the scraper 5 is fitted with the circumferential surface of the moving wheel 3, and the cross-sectional shape of the scraper 5 is set to an isosceles hexagon, a fixing frame 51 is fixedly connected to the upper surface of one end of the scraper 5, and a hexagonal remover 52 is fixedly connected to the top of the fixing frame 51, and the sizes of the hexagonal remover 52 and the scraper 5 match the sizes of the positioning groove 41.

[0032] Specifically, during the movement of the casters of the existing suitcases, due to the influence of environmental factors, when the suitcases are on muddy roads, debris may be attached to the surface of the casters, which will increase the friction of the ground, making the suitcases not smooth when sliding, or the debris may penetrate into the bearings of the wheels, increasing friction and causing the wheels to wear or damage prematurely.

[0033] Before using the device, the scraper 5 is fixedly installed inside the storage rack 23, and one end of the scraper 5 is in contact with the surfaces of the two moving wheels 3. When in use, the mounting plate 1 is fixedly installed under the trolley case. When the moving angle changes, the connecting seat 2 rotates inside the mounting plate 1, and at the same time, the connecting seat 2 drives the two-way bearing 21 to rotate, and the two-way bearing 21 drives the moving wheels 3 to rotate synchronously, so as to realize movement in different directions. When debris is attached to the surface of the moving wheel 3, the debris moves to the scraper 5, and one end of the scraper 5 can be used to clean the debris on the surface of the moving wheel 3, thereby avoiding the problem that the debris is attached to the surface of the moving wheel 3 and increases the friction with the ground, causing the trolley case to become unsmooth when sliding.

[0034] When the moving wheel 3 is damaged and needs to be replaced, the scraper 5 is pulled out from the storage rack 23. The shape of the scraper 5 is set to a regular hexagon, and the hexagonal remover 52 matches the shape of the positioning groove 41 on the hexagonal bolt 4. The scraper 5 or the hexagonal remover 52 can be inserted into the positioning groove 41 and the hexagonal bolt 4 can be removed. After the hexagonal bolt 4 is removed, the limit between the two-way bearing 21 and the moving wheel 3 can be cancelled, so that the moving wheel 3 can be removed from the two-way bearing 21 to complete the disassembly operation. Subsequently, the replaced moving wheel 3 is installed on the two-way bearing 21 again, and the hexagonal bolt 4 is reset and tightened by the scraper 5 or the hexagonal remover 52. The scraper 5 can be used as a disassembly tool, which reduces the tool cost and the complexity of carrying, facilitates the disassembly and replacement of the moving wheel 3, and improves the efficiency of disassembling and replacing the moving wheel 3. At the same time, the hexagonal remover 52 is shorter and the scraper 5 is longer, which can not only adapt to various disassembly environments but also form a labor-saving lever to reduce the disassembly intensity of the user.

[0035] like Figure 2 As shown, a storage slot 24 is provided inside the storage rack 23 , and the inner wall of the storage slot 24 is slidably connected to the surface of the scraper 5 , and the size of the storage slot 24 matches the size of the scraper 5 .

[0036] Specifically, the scraper 5 can be positioned and placed inside the storage rack 23 through the storage groove 24, and the scraper 5 can be supported so that the scraper 5 can stably clean the debris on the surface of the moving wheel 3.

[0037] like Figure 2 and Figure 3 As shown, one side of the storage rack 23 is fixedly connected to a limiting rack 25, one end of the limiting rack 25 is symmetrically and slidably connected to a limiting rod 26, one end of the limiting rod 26 is fixedly connected to a push plate 28, and a first spring 27 is fixedly connected between one end of the limiting rod 26 and the inside of the limiting rack 25.

[0038] Specifically, when the scraper 5 is fixed on the storage rack 23, one side of the push plate 28 is in contact with one side of the fixing rack 51, and the first spring 27 is in a stretched state at this time. When the scraper 5 is in a disassembled state, the first spring 27 is reset and drives the limit rod 26 to slide, and the limit rod 26 drives the push plate 28 to reset. Both sides of the push plate 28 are in contact with the limit block 515, and the limit block 515 can be limited.

[0039] Embodiment 2

[0040] like Figures 4 to 6 As shown, compared with Example 1, another embodiment of the present invention is: the inner wall of the scraper 5 is symmetrically fixedly connected with a fixed plate 53, a fixed rod 54 is fixedly connected between the two fixed plates 53, both ends of the fixed rod 54 are provided with a slide groove 55, and the slide groove 55 is provided with two paths, the inside of the two slide grooves 55 are slidably connected with a slider 56, the inside of the slider 56 is fixedly connected with a moving rod 57, one end of each moving rod 57 is fixedly connected with a baffle 58, the scraper 5 is rotatably connected with a rotating rod 59, the two ends of the rotating rod 59 are symmetrically fixedly connected with a rotating disk 510, the inside of the rotating disk 510 is provided with an arc groove 511, and the arc groove 511 is provided with two paths, a feeding groove 513 is provided on one side of the scraper 5, and a discharging groove 512 is provided on the lower surface of the scraper 5, and the sizes of the discharging groove 512 and the feeding groove 513 match the size of the baffle 58.

[0041] Specifically, when the moving wheel 3 moves toward the scraper 5, the debris cleaned by the scraper 5 will accumulate between the scraper 5 and the moving wheel 3, which may cause wear or scratches on the moving wheel 3 and may hinder the cleaning process, resulting in incomplete cleaning.

[0042] When the scraper 5 is fixed in the storage rack 23 and is cleaning the debris on the surfaces of the two moving wheels 3, the feed slot 513 and the discharge slot 512 of the scraper 5 are in an open state. When the moving wheel 3 moves toward the scraper 5, after the scraper 5 cleans the debris, the debris will enter the feed slot 513, and the debris will enter the interior of the scraper 5 through the feed slot 513, and then slide downward through the interior of the scraper 5 to the discharge slot 512, completing the automatic discharge operation. When the moving wheel 3 moves away from the scraper 5, after the debris is cleaned by the scraper 5, the debris will slide downward along the inclined surface of the scraper 5 to complete the automatic discharge operation.

[0043] When the scraper 5 is pulled out from the storage rack 23 and the hexagonal bolt 4 needs to be disassembled, the driving rod 59 is rotated, the rotating rod 59 drives the turntable 510 to rotate, the turntable 510 drives the arc groove 511 to rotate, the arc groove 511 squeezes the moving rod 57 to move, the moving rod 57 drives the slider 56 to move, the slider 56 slides in the slide groove 55, so that the moving rod 57 can be limited and slide stably, the moving rod 57 drives the baffle 58 to move, the baffle 58 enters the feed groove 513 and the discharge groove 512, and completely fills the feed groove 513 and the discharge groove 512, so as to avoid the scraper 5 from being damaged faster when the hexagonal bolt 4 is disassembled when it is subjected to greater stress. By adding the baffle 58 in the discharge groove 512 and the feed groove 513, the stress generated by the torque can be effectively dispersed, and the possibility of local stress concentration can be reduced.

[0044] like Figure 5 and Figure 6 As shown, the shape of the moving rod 57 is set to be T-shaped, one end of the moving rod 57 is slidably connected to the inside of the arc groove 511, and the size of the moving rod 57 matches the size of the arc groove 511.

[0045] Specifically, one end of the moving rod 57 is inside the slider 56, which can support the moving rod 57 and limit its sliding. The other end is squeezed in the arc groove 511 to move, and the last end is fixed to the baffle 58 to facilitate the movement of the baffle 58.

[0046] like Figure 4 As shown, the feed trough 513 is arranged inclined.

[0047] Specifically, the feed chute 513 is set at a certain inclination angle to facilitate the debris to slide down more easily.

[0048] like Figure 3 and Figure 7 As shown, a support frame 514 is fixedly connected to the upper surface of the limit plate, one end of the support frame 514 is slidably connected to a limit block 515, and limit grooves are provided on both sides of the fixed frame 51, and the size of the limit grooves matches the size of the limit block 515.

[0049] Specifically, when the scraper 5 needs to be placed inside the storage rack 23 after the moving wheel 3 is disassembled and replaced, the scraper 5 drives the fixed frame 51 to move to the limit block 515, and the limit block 515 enters the limit grooves on both sides of the fixed frame 51. At this time, the scraper 5 can be limited, so that the scraper 5 is fixed to the storage rack 23.

[0050] like Figure 7 As shown, a third spring 523 is fixedly connected between one end of the support frame 514 and the limiting block 515 .

[0051] Specifically, the third spring 523 can allow the limiting block 515 to be stably stored inside the fixing frame 51 , thereby improving the fixing strength of the scraper 5 .

[0052] like Figure 7 As shown, a movable plate 516 is slidably connected to the interior of the fixed frame 51, and a transmission rod 517 is symmetrically fixedly connected to the upper surface of the movable plate 516, and one end of the transmission rod 517 is shaped as an arc, one end of the transmission rod 517 is fitted with the lower surface of the limit block 515, and the shape of the limit block 515 is set to a right-angled trapezoid, and a transmission plate 518 is fixedly connected to the lower surface of the movable plate 516, and one end of the transmission plate 518 is rotatably connected to a connecting rod 519, and one end of the connecting rod 519 is rotatably connected to a cam 520, and the interior of the cam 520 is fixedly connected to one end of the rotating rod 59.

[0053] Specifically, when the scraper 5 is inside the storage rack 23, and the limit block 515 and the limit groove fix the fixed rack 51, the limit block 515 squeezes the transmission rod 517, and the transmission rod 517 is squeezed to drive the movable plate 516 to slide downward, and the movable plate 516 then drives the transmission plate 518 to slide downward, and the transmission plate 518 drives the connecting rod 519 to rotate, and the connecting rod 519 rotates and squeezes the cam 520 to rotate, and the rotation of the cam 520 can drive the rotating rod 59 to rotate, and the rotating rod 59 can drive the rotating disk 510 to rotate, and the rotating disk 510 drives the arc groove 511 to rotate, and the arc groove 511 squeezes the moving rod 57 to slide, and the moving rod 57 can drive the slider 56 to slide in the slide groove 55, so that the moving rod 57 drives the baffle 58 to move and slide from the feed trough 513 and the discharge trough 512, so that the feed trough 513 and the discharge trough 512 are opened for automatic discharge operation;

[0054] When the scraper 5 needs to be removed and the hexagonal bolt 4 is disassembled, the limit block 515 is pulled out of the limit groove inside the fixing frame 51, and the limit block 515 squeezes the third spring 523, so that the third spring 523 is compressed. At the same time, the first spring 27 is reset and drives the limit rod 26 to slide. The limit rod 26 drives the push plate 28 to slide. The push plate 28 pushes the fixing frame 51 to the outside of the storage frame 23, and the removal of the scraper 5 is completed. At the same time, the final position of the push plate 28 is between the two limit blocks 515, and the limit block 51 can be 5 performs a limiting operation. When the limiting block 515 is taken out of the limiting groove, the movable plate 516 is reset, and finally the baffle plate 58 enters the feeding groove 513 and the discharging groove 512 to complete the sealing and filling operation. When the scraper 5 is installed, the fixing frame 51 is positioned and installed at the upper end. The scraper 5 enters the storage groove 24, and the fixing frame 51 pushes the push plate 28 to move backward, so that the limiting block 515 slides on both sides of the fixing frame 51. When it moves to the limiting groove, the third spring 523 is reset to drive the limiting block 515 to enter the limiting groove.

[0055] like Figure 7 As shown, a raised plate is fixedly connected to the lower surface of the movable plate 516, a sliding rod 521 is slidably connected inside the raised plate, the sliding rod 521 is fixedly connected to the inner wall of the fixed frame 51, and a second spring 522 is fixedly connected between one end of the sliding rod 521 and the raised plate.

[0056] Specifically, when the limit block 515 squeezes the transmission rod 517, the transmission rod 517 drives the movable plate 516 to slide downward, and the movable plate 516 drives the raised plate to slide on the surface of the slide rod 521. At the same time, the raised plate squeezes the second spring 522, so that the second spring 522 is in a compressed state. When the limit block 515 disengages from the limit groove, the second spring 522 is reset and drives the movable plate 516 to reset to its initial state.

[0057] Working principle: When the device is used, the scraper 5 is fixedly installed inside the storage rack 23, and one end of the scraper 5 is in contact with the surface of the two moving wheels 3. When in use, the mounting plate 1 is fixedly installed under the trolley case. When the moving angle changes, the connecting seat 2 rotates inside the mounting plate 1, and the connecting seat 2 drives the two-way bearing 21 to rotate, and the two-way bearing 21 drives the moving wheels 3 to rotate synchronously, so that movement in different directions can be achieved. When debris is attached to the surface of the moving wheel 3, the debris moves to the scraper 5. At this time, the feed slot 513 and the discharge slot 512 of the scraper 5 are in an open state. When the moving wheel 3 moves toward the scraper 5, the scraper 5 cleans the debris and the debris enters the feed slot 513. The debris enters the interior of the scraper 5 through the feed slot 513 and then slides downward through the interior of the scraper 5 to the discharge slot 512, completing the automatic discharge operation. When the moving wheel 3 moves away from the scraper 5, the debris is cleaned by the scraper 5 and slides downward along the inclined surface of the scraper 5 to complete the automatic discharge operation.

[0058] When the scraper 5 is pulled out from the storage rack 23 and the hexagonal bolt 4 needs to be disassembled, the limit block 515 is pulled out of the limit groove inside the fixed frame 51, and the limit block 515 squeezes the third spring 523, so that the third spring 523 is compressed. At the same time, the first spring 27 is reset and drives the limit rod 26 to slide, and the limit rod 26 drives the push plate 28 to slide, and the push plate 28 pushes the fixed frame 51 to the outside of the storage rack 23, and the scraper 5 is disassembled. The final position of the push plate 28 is between the two limit blocks 515. At this time, the second spring 522 drives the movable plate 516 to move upward, and the movable plate 516 drives the transmission plate 518 to move upward, and the transmission plate 518 drives the connecting rod 519 to rotate, and the connecting rod 519 drives the cam 520 to rotate. The rotating rod 59 is driven to rotate, and the rotating rod 59 drives the rotating disk 510 to rotate, and the rotating disk 510 drives the arc groove 511 to rotate, and the arc groove 511 squeezes the moving rod 57 to move, and the moving rod 57 drives the slider 56 to move, and the slider 56 slides in the slide groove 55, so that the moving rod 57 can be limited and slide stably, and the moving rod 57 drives the baffle 58 to move, and the baffle 58 enters the feed groove 513 and the discharge groove 512, and completely fills the feed groove 513 and the discharge groove 512, which can avoid the hexagonal bolt 4 when disassembling, and avoid the scraper 5 from being damaged faster when it is subjected to greater stress. By adding the baffle 58 in the discharge groove 512 and the feed groove 513, the stress generated by the torque can be effectively dispersed, and the possibility of local stress concentration can be reduced. The basic principles, main features and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A suitcase caster assembly, characterized in that: The invention comprises a mounting plate (1), wherein a connecting seat (2) is rotatably connected to the lower surface of the mounting plate (1), a bidirectional bearing (21) is fixedly connected to the interior of the connecting seat (2), a moving wheel (3) is rotatably arranged on the circumferential surface of the bidirectional bearing (21), and hexagonal bolts (4) are bolted to both ends of the connecting seat (2), the moving wheel (3) is fixedly limited on the bidirectional bearing (21) by the hexagonal bolts (4), and a positioning groove (41) is arranged on the side wall of the end of the hexagonal bolt (4) away from the bidirectional bearing (21). A storage rack (23) is fixedly connected to the surface of the receiving seat (2), a scraper (5) is slidably connected inside the storage rack (23), one end of the scraper (5) is in contact with the circumferential surface of the moving wheel (3), the cross-sectional shape of the scraper (5) is set to be an isosceles hexagon, a fixing rack (51) is fixedly connected to the upper surface of one end of the scraper (5), a hexagonal disassembler (52) is fixedly connected to the top of the fixing rack (51), and the sizes of the hexagonal disassembler (52) and the scraper (5) match the sizes of the positioning groove (41); A storage groove (24) is provided inside the storage rack (23), the inner wall of the storage groove (24) is slidably connected to the surface of the scraper (5), and the size of the storage groove (24) matches the size of the scraper (5); One side of the storage rack (23) is fixedly connected to a limiting rack (25), one end of the limiting rack (25) is symmetrically slidably connected to a limiting rod (26) inside, one end of the limiting rod (26) is fixedly connected to a push plate (28), and a first spring (27) is fixedly connected between one end of the limiting rod (26) and the inside of the limiting rack (25); The inner wall of the scraper (5) is symmetrically fixedly connected with a fixing plate (53), a fixing rod (54) is fixedly connected between the two fixing plates (53), both ends of the fixing rod (54) are provided with a slide groove (55), and the slide groove (55) is provided with two paths, the inside of the two slide grooves (55) is slidably connected with a slider (56), the inside of the slider (56) is fixedly connected with a moving rod (57), one end of each moving rod (57) is fixedly connected with a baffle (58), and the The scraper (5) is rotatably connected to a rotating rod (59) at its inner side, and a rotating disk (510) is symmetrically fixedly connected to both ends of the rotating rod (59). An arc groove (511) is provided inside the rotating disk (510), and the arc groove (511) is provided with two paths. A feed groove (513) is provided on one side of the scraper (5), and a discharge groove (512) is provided on the lower surface of the scraper (5). The sizes of the discharge groove (512) and the feed groove (513) match the sizes of the baffle (58).

2. The suitcase caster assembly according to claim 1, characterized in that: The shape of the moving rod (57) is set to be T-shaped, one end of the moving rod (57) is slidably connected to the inside of the arc-shaped groove (511), and the size of the moving rod (57) matches the size of the arc-shaped groove (511).

3. The suitcase caster assembly according to claim 2, characterized in that: The feed trough (513) is arranged at an incline.

4. The suitcase caster assembly according to claim 3, characterized in that: A support frame (514) is fixedly connected to the upper surface of the push plate (28), one end of the support frame (514) is slidably connected to a limit block (515), and limit grooves are provided on both sides of the fixed frame (51), and the size of the limit grooves matches the size of the limit block (515).

5. The trolley case caster assembly according to claim 4, characterized in that: A third spring (523) is fixedly connected between one end of the support frame (514) and the limiting block (515).

6. The suitcase caster assembly according to claim 5, characterized in that: A movable plate (516) is slidably connected to the interior of the fixed frame (51), a transmission rod (517) is symmetrically fixedly connected to the upper surface of the movable plate (516), one end of the transmission rod (517) is configured to be in an arc shape, one end of the transmission rod (517) is in contact with the lower surface of the limit block (515), the limit block (515) is configured to be in a right-angle trapezoid shape, a transmission plate (518) is fixedly connected to the lower surface of the movable plate (516), one end of the transmission plate (518) is rotatably connected to a connecting rod (519), one end of the connecting rod (519) is rotatably connected to a cam (520), and the interior of the cam (520) is fixedly connected to one end of the rotating rod (59).

7. The suitcase caster assembly according to claim 6, characterized in that: A raised plate is fixedly connected to the lower surface of the movable plate (516), a sliding rod (521) is slidably connected inside the raised plate, the sliding rod (521) is fixedly connected to the inner wall of the fixed frame (51), and a second spring (522) is fixedly connected between one end of the sliding rod (521) and the raised plate.

Images