Efficient braking system
By designing a high-efficiency braking system, and utilizing the brake drive component and locking component to release and lock the movement of the swivel wheels, the problem of reduced load capacity and short service life caused by the inability of the middle wheel to rotate in traditional six-wheeled vehicles has been solved, thereby improving load capacity and enhancing the flexibility of the device.
Patent Information
- Application Number
- CN202422878967.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-08
- Publication Date
- 2025-10-28
- Estimated Expiration
- 2035-09-08
AI Technical Summary
The middle wheel of a traditional six-wheeled vehicle cannot rotate, resulting in a decrease in load capacity. Furthermore, the brake pads are in direct contact with the tire rubber, leading to a short service life.
Design an efficient braking system including a brake drive component and a locking component. The brake drive component releases and locks the lateral and forward/backward movement of the caster wheels. Combined with a lateral locking mechanism, it ensures that the diameter of the intermediate wheel remains unchanged, thus preventing the brake pads from directly contacting the tire rubber.
It improves load-bearing capacity, extends the service life of the device, and enhances flexibility and reversing capabilities in confined spaces.
Smart Images
Figure CN223479108U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of six-wheeled trolley technology, specifically to a high-efficiency braking system. Background Technology
[0002] A six-wheeled platform truck is a unitized mobile loading device equipped with six casters, specifically designed for material transportation and storage. It is widely used in the logistics and distribution systems of large supermarkets and in the material handling processes of factory production.
[0003] Traditional six-wheeled vehicles have a fixed center wheel that cannot rotate and can only move forward and backward. In contrast, traditional lateral six-wheeled vehicles rely on a brake lever, brake pads, and springs on the center swivel wheel, which is pressed by a connecting rod to make the brake pads contact the tire rubber to achieve braking. Furthermore, the center wheel has a smaller diameter, resulting in a reduced load capacity.
[0004] Based on this, the present invention designs a high-efficiency braking system to solve the above problems. Utility Model Content
[0005] In view of the above-mentioned shortcomings of the existing technology, the present invention provides a high-efficiency braking system.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] A high-efficiency braking system includes a trolley chassis with three swivel casters symmetrically mounted on the front and rear sides of its lower end. A movable cavity is located in the middle of the trolley chassis. Left and right movement locking mechanisms for controlling the left and right movement of the two middle swivel casters are located on the upper left and middle sides of the trolley chassis. The left and right movement locking mechanism includes a brake drive assembly for controlling the movement of the locking assembly and a locking assembly for releasing and locking the swivel casters. The brake drive assembly is mounted on the left side of the trolley chassis. The locking assembly is mounted inside the movable cavity and connected to the brake drive assembly. A lateral locking mechanism for controlling the forward and backward movement of the middle swivel casters is also located inside the movable cavity. The lateral locking mechanism is positioned outside the locking assembly.
[0008] Furthermore, the brake drive assembly includes a first brake pedal, a first locking rod, a drive locking assembly, a brake lever, and a sliding groove. The first brake pedal is rotatably mounted on the left end of the trolley chassis; and the first locking rod is fixedly mounted on the first brake pedal; the drive locking assembly is mounted on the left end of the trolley chassis; the drive locking assembly is connected to the first locking rod; the lower right side of the first brake pedal is abutted and fixed to the brake lever; a sliding groove is provided on the upper left side of the trolley chassis; the brake lever is slidably connected to the sliding groove; a spring is provided on the right end of the connection between the brake lever and the lower right side of the first brake pedal, so that the brake lever can automatically reset when the left and right movement lock is released;
[0009] Furthermore, the drive locking assembly includes a locking plate, a first locking slot, and a second locking slot. The locking plate is rotatably connected to the left end of the trolley chassis via a rotating shaft. A torsion spring is installed on the rotating shaft, and the two ends of the torsion spring are fixedly connected to the rear side of the left end of the trolley chassis and the front side of the locking plate, respectively, so that the locking plate remains in a horizontal state. The width of the first brake pedal is greater than that of the locking plate. The locking plate is installed inside the first brake pedal. The locking plate is provided with a first locking slot and a second locking slot, and the first locking rod engages with both the first locking slot and the second locking slot.
[0010] Furthermore, the first card slot is positioned higher than the second card slot;
[0011] Furthermore, the locking assembly includes a push rod, a brake bracket, a brake groove, a brake connecting rod, a brake wire, a return spring, brake gears, and a sliding groove. The push rod is rotatably mounted inside the movable cavity; the right end of the brake rod is in contact with the push rod; the lower right end of the push rod is in contact with the brake connecting rod; the upper end of the return spring is fixedly connected to the upper end of the brake connecting rod, and the lower end of the return spring is fixedly connected to the inner bottom of the movable cavity; the brake bracket is provided with a sliding groove; the brake connecting rod is slidably connected to the sliding groove; the two brake gears are fixedly connected to the ends of the two middle universal wheels that are close to each other; the outer ring of the brake gears is provided with multiple brake grooves; the lower end of the brake connecting rod is fixedly connected to a brake wire; the brake wire is slidably connected to the brake groove; the brake bracket is part of the universal wheel and is mounted together with the universal wheel on the lower end of the trolley chassis.
[0012] Furthermore, the brake grooves are evenly distributed at equal intervals around the outer ring of the brake gear;
[0013] Furthermore, the lateral locking mechanism includes a second brake pedal, a tension spring, a second locking rod, a retaining ring, and a third retaining groove. The second brake pedal is rotatably mounted on the left side inside the movable cavity; retaining rings are fixedly mounted on the rotating shafts connecting the two middle casters to the trolley chassis; a third retaining groove is provided at the left end of the retaining rings; the upper end of the tension spring is fixedly mounted on the left side of the top of the movable cavity; the lower end of the tension spring is fixedly connected to the upper end of the second brake pedal; a second locking rod is fixedly connected to the lower left side of the second brake pedal; the second locking rod engages with the third retaining groove.
[0014] Furthermore, the diameter of the caster wheel is 125mm.
[0015] Compared with the prior art, the advantages of this utility model are as follows: by driving the locking component through the brake drive component, the movement of the two middle front and rear universal wheels in the left and right directions can be released and locked; the movement of the two middle front and rear universal wheels in the front and back directions can be released and locked through the lateral locking mechanism; through the cooperation of the brake drive component and the locking component, the braking device retains the traditional 125mm diameter middle wheel, ensuring the load-bearing capacity of the device; the locking component prevents the brake pads from directly contacting the tire rubber, thus improving the service life of the device; the lateral locking mechanism allows the device to move back and forth and achieve reversing function in some narrow positions, improving the flexibility of the device. Attached Figure Description
[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0017] Figure 1 This is a schematic diagram of the structure of a high-efficiency braking system of the present invention in the unlocked state;
[0018] Figure 2 This is a schematic diagram of the structure of a high-efficiency braking system of the present invention in the locked state;
[0019] Figure 3 A schematic diagram of the left-right moving locking mechanism in the unlocked state;
[0020] Figure 4 This is a schematic diagram of the locking mechanism in the locked state.
[0021] Figure 5 This is a partial schematic diagram of the locking assembly;
[0022] Figure 6 for Figure 2 Enlarged view of point A in the middle;
[0023] Figure 7 This is a top view of a high-efficiency braking system according to the present invention.
[0024] The numbers in the figure represent:
[0025] 1. Car chassis; 2. Casters; 3. Left and right moving locking mechanism; 31. Brake drive assembly; 311. First brake pedal; 312. First lever; 313. Latch; 314. First slot; 315. Second slot; 316. Brake lever; 317. Sliding groove; 32. Locking assembly; 321. Push rod; 322. Brake bracket; 323. Brake groove; 324. Brake linkage; 325. Brake wire; 326. Return spring; 327. Brake gear; 328. Sliding groove; 4. Lateral locking mechanism; 41. Second brake pedal; 42. Tension spring; 43. Second lever; 44. Snap ring; 45. Third slot; 5. Movable cavity. Detailed Implementation
[0026] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.
[0027] In some embodiments, please refer to the accompanying drawings. Figures 1-7 A high-efficiency braking system includes a trolley chassis 1, with three casters 2 symmetrically mounted on the front and rear sides of the lower end of the trolley chassis 1; a movable cavity 5 is provided in the middle of the trolley chassis 1; left and right movement locking mechanisms 3 are provided on the upper left and middle of the trolley chassis 1 to control the left and right movement of the two middle casters 2; the left and right movement locking mechanism 3 includes a brake drive assembly 31 for controlling the movement of the locking assembly 32 and a locking assembly 32 for releasing and locking the casters 2; the brake drive assembly 31 is installed on the left side of the trolley chassis 1; the locking assembly 32 is installed in the movable cavity 5, and the brake drive assembly 31 and the locking assembly 32 are connected; a transverse locking mechanism 4 for controlling the front and rear movement of the middle caster 2 is also provided inside the movable cavity 5; the casters 2 have a diameter of 125mm to ensure the load-bearing capacity of the device; the transverse locking mechanism 4 is installed outside the locking assembly 32.
[0028] In this invention, the brake drive assembly 31 drives the locking assembly 32 to move, thereby releasing and locking the movement of the two central casters 2 in the left and right directions; the transverse locking mechanism 4 releases and locks the movement of the two central casters 2 in the front and back directions; the cooperation of the brake drive assembly 31 and the locking assembly 32 allows the brake device to retain the traditional 125mm diameter central wheel, ensuring the load-bearing capacity of the device; the locking assembly 32 prevents the brake pads from directly contacting the tire rubber, thus improving the service life of the device; the transverse locking mechanism 4 allows the device to move back and forth in some narrow positions and achieve reversing function, improving the flexibility of the device.
[0029] The brake drive assembly 31 includes a first brake pedal 311, a first locking rod 312, a locking plate 313, a first locking groove 314, a second locking groove 315, a brake lever 316, and a sliding groove 317. The first brake pedal 311 is rotatably mounted on the left end of the trolley chassis 1; and the first locking rod 312 is fixedly mounted on the first brake pedal 311. The locking plate 313 is rotatably connected to the left end of the trolley chassis 1 via a rotating shaft. A torsion spring is provided on the rotating shaft, and the two ends of the torsion spring are fixedly connected to the rear side of the left end of the trolley chassis 1 and the front side of the locking plate 313, respectively, so that the locking plate 313 remains in a horizontal state. The mounting position of the locking plate 313 is the first brake pedal. Inside 311; the card plate 313 is provided with a first card slot 314 and a second card slot 315, and the first card rod 312 is engaged with both the first card slot 314 and the second card slot 315; the first card slot 314 is positioned higher than the second card slot 315; the lower right side of the first brake pedal 311 is abutted and fixed to the brake rod 316; a sliding groove 317 is provided on the upper left side of the trolley chassis 1; the brake rod 316 is slidably connected to the sliding groove 317; a spring is provided on the right end of the connection between the brake rod 316 and the lower right side of the first brake pedal 311, so that the brake rod 316 can automatically return to its original position when the left and right movement lock is released;
[0030] The locking assembly 32 includes a push rod 321, a brake bracket 322, a brake groove 323, a brake connecting rod 324, a brake wire 325, a return spring 326, a brake gear 327, and a slide groove 328. The push rod 321 is rotatably mounted inside the movable cavity 5. The right end of the brake rod 316 is in contact with the push rod 321. The lower right end of the push rod 321 is in contact with the brake connecting rod 324. The upper end of the return spring 326 is fixedly connected to the upper end of the brake connecting rod 324, and the lower end of the return spring 326 is fixedly connected to the inner bottom of the movable cavity 5. The brake bracket 322... The upper part is provided with a sliding groove 328; the brake linkage 324 is slidably connected to the sliding groove 328; the brake gear 327 is fixedly connected to the end of the two middle universal wheels 2 that are close to each other; the outer ring of the brake gear 327 is provided with a plurality of brake grooves 323, which are evenly distributed in a circular pattern on the outer ring of the brake gear 327; the lower end of the brake linkage 324 is fixedly connected with a brake wire 325; the brake wire 325 is slidably connected to the brake grooves 323; the brake bracket 322 is part of the universal wheel 2 and is installed together with the universal wheel 2 at the lower end of the trolley chassis 1.
[0031] In this invention, when the device is unlocked, the first locking rod 312 on the first brake pedal 311 is locked by the first locking groove 314, and the return spring 326 is in its natural state. When it is necessary to lock the device to move in the left or right direction, the first brake pedal 311 is pressed down, which moves the first locking rod 312 until the first locking rod 312 slides into the second locking groove 315 and is locked by the second locking groove 315. When the first brake pedal 311 moves the first locking rod 312 downward, the first brake pedal 311 will drive the brake lever 316 to slide to the right along the sliding groove 317; and the brake lever 316 will drive the push... When lever 321 is rotated to the right, the push rod 321 will compress the return spring 326 downwards, causing the brake linkage 324 to drive the brake wire 325 to move along the slide groove 328 towards the center of the brake gear 327. During the movement of the brake linkage 324, the brake wire 325 will be embedded in the slide groove 328, at which point the brake gear 327 cannot rotate, preventing the two omnidirectional wheels 2 in the middle from rotating. At this time, the device is in a left-right movement locked state. When unlocking is required, step down on the locking plate 313 to make the first locking rod 312 slide out from the second locking groove 315, thereby restoring the brake lever 316 to its original position.
[0032] The transverse locking mechanism 4 includes a second brake pedal 41, a tension spring 42, a second locking rod 43, a retaining ring 44, and a third retaining groove 45. The second brake pedal 41 is rotatably mounted on the left side inside the movable cavity 5. The retaining ring 44 is fixedly mounted on the rotating shaft connecting the two middle casters 2 to the trolley chassis 1. The left end of the retaining ring 44 is provided with a third retaining groove 45. The upper end of the tension spring 42 is fixedly mounted on the left side of the top end inside the movable cavity 5. The lower end of the tension spring 42 is fixedly connected to the upper end of the second brake pedal 41. The lower left side of the second brake pedal 41 is fixedly connected to the second locking rod 43. The second locking rod 43 engages with the third retaining groove 45.
[0033] In this invention, in its natural state, the second locking rod 43 is located in the third slot 45 on the left side of the locking ring 44, and the two middle universal wheels 2 cannot rotate forward or backward. At this time, the device can only move in the left and right directions. When the device is in a narrow position and needs to move forward or backward, the second brake pedal 41 is pressed down, and the second brake pedal 41 will stretch the tension spring 42 downward. The second brake pedal 41 will drive the second locking rod 43 to rotate together, so that the second locking rod 43 moves out of the third slot 45. At this time, the two middle universal wheels 2 can rotate. This releases the device from the forward and backward movement lock. When moving to the set position, it is only necessary to rotate the device in place to drive the middle universal wheels 2 to rotate, so that the third slot 45 and the second locking rod 43 are aligned. At this time, the tension spring 42 returns to its original position, driving the second brake pedal 41 and the second locking rod 43 to reset. At this time, the device is in the forward and backward movement lock state.
[0034] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.
Claims
1. A high-efficiency braking system, comprising a trolley chassis (1), characterized in that: Three casters (2) are symmetrically installed on the front and rear sides of the lower end of the trolley chassis (1); a movable cavity (5) is provided in the middle of the trolley chassis (1); a left-right moving locking mechanism (3) is provided on the upper left and middle of the trolley chassis (1) to control the left and right movement of the two middle casters (2); the left-right moving locking mechanism (3) includes a brake drive assembly (31) for controlling the movement of the locking assembly (32) and a locking assembly (32) for releasing and locking the casters (2); the brake drive assembly (31) is installed on the left side of the trolley chassis (1); the locking assembly (32) is installed in the movable cavity (5), and the brake drive assembly (31) and the locking assembly (32) are connected; a transverse locking mechanism (4) for controlling the front and rear movement of the middle casters (2) is also provided inside the movable cavity (5); the transverse locking mechanism (4) is installed outside the locking assembly (32).
2. The high-efficiency braking system according to claim 1, characterized in that, The brake drive assembly (31) includes a first brake pedal (311), a first locking rod (312), a drive locking assembly, a brake lever (316), and a sliding groove (317). The first brake pedal (311) is rotatably mounted on the left end of the trolley chassis (1); and the first locking rod (312) is fixedly mounted on the first brake pedal (311). The drive locking assembly is mounted on the left end of the trolley chassis (1); and the drive locking assembly is connected to the first locking rod (312). The lower right side of the first brake pedal (311) is abutted and fixed to the brake lever (316); a sliding groove (317) is provided on the upper left side of the trolley chassis (1); the brake lever (316) and the sliding groove (317) are connected in a limited sliding manner; a spring is provided on the right end of the connection part between the brake lever (316) and the lower right side of the first brake pedal (311), and the brake lever (316) can automatically return to its original position when the left and right movement lock is released.
3. The high-efficiency braking system according to claim 2, characterized in that, The drive locking assembly includes a locking plate (313), a first locking slot (314), and a second locking slot (315). The locking plate (313) is rotatably connected to the left end of the trolley chassis (1) via a rotating shaft. A torsion spring is provided on the rotating shaft, and the two ends of the torsion spring are fixedly connected to the rear side of the left end of the trolley chassis (1) and the front side of the locking plate (313) respectively, so that the locking plate (313) remains in a horizontal state. The width of the first brake pedal (311) is greater than that of the locking plate (313). The mounting position of the locking plate (313) is inside the first brake pedal (311). The locking plate (313) is provided with a first locking slot (314) and a second locking slot (315). The first locking rod (312) is engaged with both the first locking slot (314) and the second locking slot (315).
4. The high-efficiency braking system according to claim 3, characterized in that, The first card slot (314) is positioned higher than the second card slot (315).
5. The high-efficiency braking system according to claim 4, characterized in that, The locking assembly (32) includes a push rod (321), a brake bracket (322), a brake groove (323), a brake linkage (324), a brake wire (325), a return spring (326), a brake gear (327), and a slide (328). The push rod (321) is rotatably mounted inside the movable cavity (5). The right end of the brake lever (316) is in contact with the push rod (321). The lower right end of the push rod (321) is in contact with the brake linkage (324). The upper end of the return spring (326) is fixedly connected to the upper end of the brake linkage (324), and the lower end of the return spring (326) is in contact with the movable cavity (5). The inner bottom is fixedly connected; a groove (328) is provided on the brake bracket (322); the brake linkage (324) is limited and slidably connected to the groove (328); two brake gears (327) are fixedly connected to the ends of the two middle universal wheels (2) that are close to each other; multiple brake grooves (323) are provided on the outer ring of the brake gears (327); a brake wire (325) is fixedly connected to the lower end of the brake linkage (324); the brake wire (325) is limited and slidably connected to the brake groove (323); the brake bracket (322) is part of the universal wheel (2) and is installed together with the universal wheel (2) on the lower end of the trolley chassis (1).
6. The high-efficiency braking system according to claim 5, characterized in that, The brake grooves (323) are evenly distributed at equal intervals around the outer ring of the brake gear (327).
7. The high-efficiency braking system according to claim 6, characterized in that, The transverse locking mechanism (4) includes a second brake pedal (41), a tension spring (42), a second locking rod (43), a retaining ring (44), and a third retaining groove (45). The second brake pedal (41) is rotatably mounted on the left side inside the movable cavity (5). The retaining ring (44) is fixedly mounted on the rotating shaft connecting the two middle casters (2) to the trolley chassis (1). The left end of the retaining ring (44) is provided with a third retaining groove (45). The upper end of the tension spring (42) is fixedly mounted on the left side of the top of the movable cavity (5). The lower end of the tension spring (42) is fixedly connected to the upper end of the second brake pedal (41). The lower left side of the second brake pedal (41) is fixedly connected to the second locking rod (43). The second locking rod (43) is engaged with the third retaining groove (45).
8. The high-efficiency braking system according to claim 7, characterized in that, The diameter of the universal wheel (2) is 125mm.