Brake structure and universal wheel thereof

Abstract

The brake structure comprises a shell and further comprises a connecting assembly, the connecting assembly comprises a rotating part arranged at the top end of the shell, a rotating gear ring is arranged at the bottom end of the rotating part, a connecting rod is arranged at the bottom end of the shell, and the outer wall of the connecting rod is rotationally connected with a rolling wheel part; the brake assembly comprises a brake plate hinged to the end, away from the rotating part, of the shell, a hinge seat is arranged at the end, close to the brake plate, of the shell, and an occlusion ring is arranged at the end, away from the brake block, of the brake plate. By means of the brake assembly arranged at the bottom end of the pedal plate, the pedal plate can push the brake block on one side of the brake plate under the treading pressure, so that the rotary gear ring is meshed to limit the connection roller to rotate, and the brake plate can achieve the two processes of braking the vehicle roller and meshing the rotary gear ring at the same time. An operator can tread and eject the front end of the pedal brake to the top end of the blocking plate, so that the position of the pedal plate is fixed.

Description

Technical Field

[0001] The utility model relates to the technical field of universal wheel design, in particular to a brake structure and a universal wheel thereof. Background Art

[0002] A caster is a wheel designed to move freely in multiple directions. It has a rotating axis that allows the wheel to turn freely within a range of 360 degrees, which allows objects equipped with casters to easily change their direction of movement.

[0003] The universal wheels currently in use are all equipped with a brake structure for controlling the movement of the equipment or vehicle equipped with the universal wheel to ensure that it can be stably stationary when needed. The brake structure is composed of a foot pedal and a brake block, both of which are arranged at the end of the outer wall of the universal wheel. When the rotating universal wheel needs to be braked, the operator needs to step on the foot pedal to press down. The foot pedal drives the brake block to be pressed down to the outer wall of the universal wheel, and the friction between the universal wheel and the brake block is used to achieve braking. During the braking process, the stability of the vehicle body needs to be considered. If faced with a high-speed rotating universal wheel, the foot pedal and the brake block may not be able to withstand the rotation of the universal wheel, resulting in conflict, making it impossible to achieve stable braking. For this purpose, a brake structure and a universal wheel thereof are designed. Utility Model Content

[0004] The purpose of the present utility model is to provide a brake structure and a universal wheel thereof, so as to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: a brake structure and a universal wheel thereof, comprising a housing, a top end of which is provided with a hinged seat, and further comprising:

[0006] A motion assembly, the motion assembly comprising a foot pedal disposed at an end of the hinged seat away from the housing, and a brake plate for braking disposed on an inner wall of the housing and located at an end close to the hinged seat;

[0007] A brake assembly, comprising a brake block arranged at one end of the brake plate close to the foot pedal, a bite ring provided at the end of the brake plate away from the brake block, a rebound plate provided at the top of the brake plate, a connecting block provided at the top of the hinged seat, a blocking plate hinged to the outer wall of the connecting block for blocking the foot pedal, and a spring provided at the bottom end of the blocking plate.

[0008] Preferably, a rotation groove is provided on the inner wall of the shell at one end close to the bite ring, the inner wall of the rotation groove is rotatably connected to the rotating gear ring, and the inner wall of the rotation groove is located at one end away from the rotating gear ring and is sleeved with the bite ring.

[0009] Preferably, a plurality of engaging grooves are arranged around the top of the engaging ring, a connecting groove is arranged on the inner wall of the connecting block, and the inner wall of the connecting groove is fixedly connected to the bottom end of the spring.

[0010] A universal wheel includes a rotating part, which is used to rotate a connected vehicle leg. The rotating part is arranged at the top of an outer shell, and the bottom end of the rotating part is fixedly connected to the top of a rotating gear ring. A connecting rod is provided at the bottom end of the outer shell, and the outer wall of the connecting rod is rotatably connected to a roller part.

[0011] Preferably, the rotating part includes a connecting bearing and a connecting roller, the outer wall of the connecting bearing is rotatably connected to the inner wall of the outer shell, and the outer wall of the connecting roller is sleeved on the top end of the outer shell.

[0012] Preferably, the inner wall of the connecting bearing is rotatably connected to the outer wall of the connecting roller, and the bottom end of the connecting roller is fixedly connected to the top end of the rotating gear ring.

[0013] Preferably, the roller portion includes a roller bearing and a turning roller, the inner wall of the roller bearing is rotatably connected to the outer wall of the connecting rod, the outer wall of the roller bearing is rotatably connected to the inner wall of the turning roller, and a plurality of clamping plates are horizontally symmetrically arranged on the outer wall at one end far from the turning roller.

[0014] The technical effects and advantages of this utility model are:

[0015] The locking plate will rebound under the tension of the spring at this time to block the connection between the foot pedal and the hinged seat, thereby fixing the position of the foot pedal and fixing the position of the brake plate and the brake block. This ensures that the brake is always in a braking state and maintains a stable and secure parking state. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the main structure of the utility model.

[0017] Figure 2 This is an exploded view of the main structure of the utility model.

[0018] Figure 3It is a side sectional view of the main structure of the utility model.

[0019] Figure 4 It is an exploded side view of the main structure of the utility model.

[0020] Figure 5 It is a side sectional view of the connection structure between the connecting block and the locking plate of the utility model.

[0021] In the figure: 1. Shell; 101. Engaging ring; 102. Engaging groove; 103. Rotating gear ring; 2. Rotating part; 201. Connecting bearing; 202. Connecting roller; 203. Rotating groove; 3. Roller part; 301. Connecting rod; 302. Roller bearing; 303. Roller; 304. Clamping plate; 4. Articulated seat; 401. Foot pedal; 402. Brake plate; 403. Rebound plate; 404. Brake block; 5. Connecting block; 501. Blocking plate; 502. Connecting groove; 503. Spring. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] The utility model provides Figure 1-5 The brake structure shown includes a housing 1, a hinge seat 4 is provided at the top of the housing 1, and further includes:

[0024] The motion assembly includes a foot pedal 401 provided on the end of the hinge seat 4 away from the housing 1, and a brake plate 402 for braking is provided on the inner wall of the housing 1 and located near the end of the hinge seat 4;

[0025] The brake assembly includes a brake block 404 arranged at one end of the brake plate 402 close to the foot pedal 401, a bite ring 101 is provided at the end of the brake plate 402 away from the brake block 404, a rebound plate 403 is provided at the top of the brake plate 402, a connecting block 5 is provided at the top of the hinged seat 4, and the outer wall of the connecting block 5 is hinged with a blocking plate 501 for blocking the foot pedal 401, and a spring 503 is provided at the bottom end of the blocking plate 501.

[0026] It should be noted that a slot is provided at the connection between the brake plate 402 and the brake block 404, and the rebound plate 403 is fixed at one end of the slot near the brake block 404. The operator needs to step on the foot pedal 401 to press down the brake block 404. The bottom end of the brake block 404 is provided with a line texture. The brake block 404 presses the line texture on the outer wall of the vehicle roller 303 by pressing down, and the rotation of the vehicle roller 303 is stopped by the friction force of the line texture. At this time, the rebound plate 403 will be resisted at the bottom end of the hinged seat 4 by the downward pressure of the brake block 404. When the operator releases his foot, the rebound plate 403 uses elastic force to drive the brake block 404 to rebound to its original position, and at the same time drives the brake plate 402 to rebound. When the operator steps on the front end of the foot pedal 401, lifts it up and slides it over the blocking plate 501, the blocking plate 501 will rebound through the spring 503 to block the connection between the hinge seat 4 and the foot pedal 401, thereby fixing the position of the foot pedal 401 and also fixing the position of the brake plate 402. The brake plate 402 will fix the brake block 404 on the outer wall of the vehicle roller 303, and fix the engaging ring 101 to the bottom end of the rotating gear ring 103, thereby realizing overall blocking and fixation.

[0027] Specifically, a rotating groove 203 is provided on the inner wall of the housing 1 at one end close to the engaging ring 101 , the inner wall of the rotating groove 203 is rotatably connected to the rotating gear ring 103 , and the inner wall of the rotating groove 203 is sleeved with the engaging ring 101 at one end away from the rotating gear ring 103 .

[0028] It should be noted that when the connecting roller 202 drives the rotating gear ring 103 to rotate synchronously, the rotating gear ring 103 will rotate on the inner wall of the rotating groove 203, and the engaging ring 101 is sleeved on the inner wall of the rotating groove 203, and the engaging ring 101 can realize vertical displacement on the inner wall of the rotating groove 203.

[0029] Specifically, a plurality of engagement grooves 102 are arranged around the top of the engagement ring 101 , and a connection groove 502 is provided on the inner wall of the connection block 5 . The inner wall of the connection groove 502 is fixedly connected to the bottom end of the spring 503 .

[0030] It should be noted that one end of the spring 503 is fixedly connected to the bottom end of the blocking plate 501, and the other end of the spring 503 is fixedly connected to the inner wall of the connecting groove 502. When the operator steps on the foot pedal 401, the front end of the foot pedal 401 will be hinged and the lifted front end of the foot pedal 401 will push the blocking plate 501. The pulling of the blocking plate 501 and the spring 503 resist the foot pedal 401. When the lifted height of the foot pedal 401 exceeds the height of the blocking plate 501, the blocking plate 501 will be rebounded to the connection between the foot pedal 401 and the hinged seat 4 by the elastic force of the spring 503. At this time, the front end of the foot pedal 401 will be blocked by the blocking plate 501 and cannot return to its original position, causing the brake block 404 on the other side of the brake plate 402 to be fixed to the outer wall of the vehicle roller 303 to achieve blocking.

[0031] A universal wheel includes a rotating part 2, which is used to rotate a connected vehicle leg. The rotating part 2 is arranged at the top of a shell 1, and the bottom end of the rotating part 2 is fixedly connected to the top of a rotating gear ring 103. A connecting rod 301 is provided at the bottom end of the shell 1, and the outer wall of the connecting rod 301 is rotatably connected to the roller part 3.

[0032] It should be noted that the rotating part 2 is arranged at the connection between the vehicle leg and the outer shell 1. The operation requires the connection of the vehicle leg to be inserted through the inner wall of the connecting roller 202. The connecting roller 202 can be rotated at the top of the outer shell 1 with the help of the connecting bearing 201. The two ends of the connecting rod 301 are fixed at the bottom end of the outer shell 1, and the roller part 3 is sleeved on the outer wall of the connecting rod 301.

[0033] Specifically, the rotating part 2 includes a connecting bearing 201 and a connecting roller 202. The outer wall of the connecting bearing 201 is rotatably connected to the inner wall of the outer shell 1, the outer wall of the connecting roller 202 is sleeved on the top of the outer shell 1, the inner wall of the connecting bearing 201 is rotatably connected to the outer wall of the connecting roller 202, and the bottom end of the connecting roller 202 is fixedly connected to the top of the rotating gear ring 103.

[0034] Specifically, a connecting groove 502 is provided at the top of the shell 1, and the connecting bearing 201 is sleeved on the middle part of the outer wall of the connecting roller 202. The combined connecting bearing 201 and the connecting roller 202 are sleeved on the inner wall of the connecting groove 502. The connecting roller 202 can realize horizontal rotation with the help of the connecting bearing 201. The rotating gear ring 103 is fixedly connected to the bottom of the connecting roller 202, and the connecting roller 202 can drive the rotating gear ring 103 to rotate synchronously.

[0035] Specifically, the roller part 3 includes a roller bearing 302 and a turning roller 303. The inner wall of the roller bearing 302 is rotatably connected to the outer wall of the connecting rod 301, and the outer wall of the roller bearing 302 is rotatably connected to the inner wall of the turning roller 303. A plurality of clamping plates 304 are horizontally symmetrically arranged on the outer wall and located at one end far from the turning roller 303.

[0036] It should be noted that the connecting rod 301 is horizontally arranged on the splicing rod at the bottom end of the shell 1, the roller bearing 302 is sleeved at the splicing of the splicing rod, and the turning roller 303 is sleeved on the outer wall of the roller bearing 302. The turning roller 303 can be rotated on the outer wall of the connecting rod 301 with the help of the roller bearing 302. The clamping plate 304 is fixed at the connection between the connecting rod 301 and the shell 1. The inner walls of the clamping plate 304 and multiple clamping plates 304 will wrap and clamp the outer walls of the turning roller 303 on both sides to realize the calibration of the vertical position of the turning roller 303, and also make the rotation of the turning roller 303 smooth and smooth.

[0037] Working principle of this utility model:

[0038] The specific operation is that the operator needs to connect the connecting leg to the inner wall of the connecting roller 202, and the connecting roller 202 can drive the leg to rotate horizontally with the rotating gear ring 103 as the center. The connecting roller 202 can then rotate on the inner wall of the shell 1 with the help of the connecting bearing 201, and the car roller 303 can also realize the rotation of the outer wall of the connecting rod 301 with the help of the roller bearing 302. The car roller 303 will rotate vertically with the connecting rod 301 as the center. When braking, the operator can step on the foot pedal 401, and the foot pedal 401 is flipped through the hinge. The front end of the foot pedal 401 will tilt and push the blocking plate 501. The blocking plate 501 pulls the spring 503 through the hinge, and the blocking plate 501 pushes the foot pedal 401 through the spring 503. The operator can force the front end of the foot pedal 401 to slide over the top of the blocking plate 501, and the blocking plate 501 The contact push and rebound under the elastic force of the spring 503 will block the connection between the foot pedal 401 and the hinge seat 4. At this time, the rear end of the foot pedal 401 will be forced to press down to the top of one side of the brake plate 402. The brake plate 402 will push the engaging ring 101 to the bottom end of the rotating gear ring 103 through the hinge and engage with it. The bottom end of the rotating gear ring 103 will block the rotation of the connecting roller 202 by engaging with the engaging groove 102. The other end of the brake plate 402 will be forced to press against the outer wall of the vehicle roller 303. The brake block 404 uses friction to stop the vehicle roller 303 from rotating. When the operator releases the foot pedal 401, the front end of the foot pedal 401 will be blocked and unable to rebound due to the blocking plate 501. The foot pedal 401 will also fix the position of the brake plate 402. The brake plate 402 fixes the position of the engaging ring 101 and the brake block 404, thereby achieving the blocking of the universal wheel as a whole.

[0039] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A brake structure comprising a housing (1), characterized in that: The top end of the housing (1) is provided with a hinge seat (4), and further comprises: A motion assembly, the motion assembly comprising a foot pedal (401) disposed at an end of the hinge seat (4) away from the housing (1), and a brake plate (402) for braking disposed on an inner wall of the housing (1) at an end close to the hinge seat (4); A brake assembly, comprising a brake block (404) arranged at one end of a brake plate (402) close to a foot pedal (401), a bite ring (101) being arranged at one end of the brake plate (402) away from the brake block (404), a rebound plate (403) being arranged at the top end of the brake plate (402), a connecting block (5) being arranged at the top end of the hinged seat (4), a blocking plate (501) being hingedly connected to the outer wall of the connecting block (5) for blocking the foot pedal (401), and a spring (503) being arranged at the bottom end of the blocking plate (501).

2. A brake structure according to claim 1, characterized in that: A rotation groove (203) is provided on the inner wall of the housing (1) and located at one end close to the bite ring (101); the inner wall of the rotation groove (203) is rotatably connected to the rotating gear ring (103); and the inner wall of the rotation groove (203) and located at one end away from the rotating gear ring (103) are sleeved with the bite ring (101).

3. A brake structure according to claim 1, characterized in that: A plurality of engagement grooves (102) are arranged around the top of the engagement ring (101), and a connection groove (502) is arranged on the inner wall of the connection block (5), and the inner wall of the connection groove (502) is fixedly connected to the bottom end of the spring (503).

4. A universal wheel, comprising a brake structure according to any one of claims 1 to 3, characterized in that: The invention comprises a rotating part (2), the rotating part (2) being used for rotating a connected vehicle leg, the rotating part (2) being arranged at the top end of a housing (1), the bottom end of the rotating part (2) being fixedly connected to the top end of a rotating gear ring (103), the bottom end of the housing (1) being provided with a connecting rod (301), the outer wall of the connecting rod (301) being rotatably connected to a roller part (3).

5. The universal wheel according to claim 4, characterized in that: The rotating part (2) comprises a connecting bearing (201) and a connecting roller (202), the outer wall of the connecting bearing (201) is rotatably connected to the inner wall of the outer shell (1), and the outer wall of the connecting roller (202) is sleeved on the top of the outer shell (1).

6. The universal wheel according to claim 5, characterized in that: The inner wall of the connecting bearing (201) is rotatably connected to the outer wall of the connecting roller (202), and the bottom end of the connecting roller (202) is fixedly connected to the top end of the rotating gear ring (103).

7. The universal wheel according to claim 4, characterized in that: The roller portion (3) includes a roller bearing (302) and a turning roller (303), wherein the inner wall of the roller bearing (302) is rotatably connected to the outer wall of the connecting rod (301), and the outer wall of the roller bearing (302) is rotatably connected to the inner wall of the turning roller (303), and a plurality of clamping plates (304) are horizontally and symmetrically arranged on the outer wall at one end far from the turning roller (303).

Images