CN217124433U - Universal wheel convenient to brake - Google Patents

Abstract

The utility model discloses an universal wheel of convenient braking, including the mounting panel, the bottom of mounting panel is rotated and is installed the support column, the bottom fixed connection of support column has a wheel support, the inside of wheel support is rotated and is connected with the gyro wheel, the top of gyro wheel is provided with brake assembly, brake assembly includes the connecting rod, the connecting rod slides to alternate and cup joints in the bottom of wheel support, the bottom fixedly connected with braking piece of connecting rod, the bottom of connecting rod outer wall slides and has cup jointed the spring, the top of connecting rod outer wall is the annular array and rotates and be connected with a plurality of brake pedals, brake pedal's outer wall and support column slip joint. The utility model discloses utilize the mode that sets up of brake assembly to during gyro wheel and braking piece face towards different directions, have at least a brake pedal and be convenient for operate, realize 360 convenient pedal braking, do not receive the restriction that the universal wheel turned to, thereby improve the convenience of its operation.

Description

A universal wheel with convenient braking

technical field

The utility model relates to the field of universal wheels, in particular to a universal wheel with convenient braking.

Background technique

The universal caster is the so-called movable caster. Its structure allows horizontal 360-degree rotation. The caster is a general term, including the movable caster and the fixed caster. The fixed caster has no rotating structure and cannot be rotated horizontally but can only be rotated vertically. These two types of casters are generally It is used for matching, and the universal wheel is most frequently used to support medical equipment, which can facilitate the convenient movement of large medical equipment, adapt to the working environment of different scenarios and reduce unnecessary occupation of work space, but this kind of medical equipment with universal wheel is installed During the use of the equipment, it is found that there is a common problem. For example, the commonly used floor-standing ventilator has four universal wheels on its base, and the universal wheels are distributed as two fixed wheels in the front and two in the back near the push armrest. The swivel wheel is active, but during use, it is found that the rear swivel wheel has a blind spot for the pedal brake pedal. When the swivel wheel is in use, the brake pedal will turn over to the bottom of the ventilator base, requiring frequent Pushing the entire ventilator to move back and forth, left and right, and the brake pedal that controls the universal wheel are exposed to the outside world. The whole process is time-consuming and labor-intensive, which makes simple work very complicated, which affects the timely implementation of various emergency nursing work by nursing staff and delays patients. treat.

Utility model content

The purpose of the present invention is to provide a universal wheel with convenient braking, so as to solve the problems raised in the above background technology.

In order to achieve the above purpose, the present utility model provides the following technical solutions: including a mounting plate, a support column installed at the bottom of the mounting plate, a wheel bracket installed at the bottom of the support column, and a roller installed in the wheel bracket, characterized in that the installation The plate is rotatably connected to the top of the support column, the bottom of the support column is fixedly connected to the top of the wheel bracket, the support column is provided with a sleeve hole with an opening downward, and the sleeve hole penetrates the wheel bracket; the The wheel bracket is provided with a brake pad located at the bottom of the support column, and a brake assembly connected to the brake pad is slidably sleeved in the sleeve hole;

The brake assembly includes a connecting rod, a spring, and a brake pedal. The bottom of the connecting rod is fixedly connected with the brake pad. The connecting rod is sleeved with a spring located at the bottom of the top plate of the wheel bracket. The top is fixedly connected with the bottom of the top plate of the wheel bracket, and the top of the side of the connecting rod is rotatably connected with a plurality of brake pedals, and the plurality of brake pedals are distributed at equal distances around the circumference, and the brake pedals penetrate the support column. A pedal cap is installed on the brake pedal, and a circumferentially distributed rubber convex portion is formed on the upper side of the pedal cap.

Preferably, a through slot is formed on the side surface of the support column, the slot extends along the direction of the central axis of the support column, and the slot is matched with the brake pedal one by one, so that the The movable pedal slides in the direction of the slot; the top of one side of the inner wall of the slot is provided with a positioning slot.

Preferably, an inclined groove is formed on one side of the bottom of the brake pedal, and the brake pedal is slidably engaged with the positioning groove through the inclined groove.

Preferably, the top of the side surface of the connecting rod is provided with an annular groove, the inner cavity of the annular groove is rotatably connected with a connecting collar, and one end of the brake pedal is fixedly connected with the connecting collar.

Preferably, a guide portion is formed between the connecting rod and the sleeve hole, and the guide portion includes a slider that is symmetrically and fixedly connected to the inner wall of the sleeve hole, and a sliding block drilled on the side surface of the connecting rod and the sleeve hole. The sliding groove is adapted to the sliding block, and the sliding block is slidably connected with the sliding groove, so that the connecting rod can move up and down without rotation.

Preferably, a bearing portion is formed at the rotational connection between the mounting plate and the support column, the bearing portion includes a fixing sleeve fixedly connected to the bottom of the mounting plate, and the inner cavity of the fixing sleeve is sleeved There is a bearing, and the top of the outer wall of the support column is rotatably connected with the fixed sleeve through the bearing.

Preferably, the horizontal projection length of the brake pedal is greater than the length from the horizontal projection edge of the roller to the projection center of the connecting rod.

Technical effects and advantages of the present utility model:

(1) The present utility model utilizes the arrangement of the brake assembly. The brake assembly includes a connecting rod, a brake pad, a spring and a plurality of brake pedals, so that when the roller and the brake pad face in different directions, at least one brake The pedal is easy to operate, so pushing a brake pedal can release the position restriction of the connecting rod, so that the brake pad can brake the roller under the action of the spring, thereby improving the convenience of its operation;

(2) The utility model utilizes the arrangement of the brake pedal and the support column. One side of the bottom of the brake pedal is provided with an inclined oblique groove, and the bottom of the support column is provided with a sleeve hole, and the inner wall of the sleeve hole is formed in an annular array. A plurality of slots are provided, and one side of the top of the inner wall of the slot is provided with a positioning slot matching the inclined slot on the brake pedal, so as to ensure the stability of the brake pedal clamping.

Description of drawings

1 is a schematic diagram of the overall three-dimensional structure of the universal wheel of the present invention.

Fig. 2 is a three-dimensional partial exploded schematic diagram of the universal wheel of the present invention.

3 is a schematic cross-sectional structure diagram of the universal wheel of the present invention.

4 is a schematic diagram of the overall structure of the brake pedal of the present invention.

In the figure: 1. Mounting plate; 2. Support column; 21. Hole; 22. Slotting; 23. Positioning slot; 24. Pedal cap; 25. Rubber protrusion; 3. Wheel bracket; 4. Roller wheel; 5. Brake assembly; 51, connecting rod; 52, brake pad; 53, spring; 54, brake pedal; 55, chute; 56, connecting collar; 57, slider; 58, annular groove; 59, slide Slot; 6. Pin; 7. Fixed sleeve; 8. Bearing.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

The utility model provides a universal wheel with convenient braking as shown in Figures 1-4, comprising a mounting plate 1, the bottom of the mounting plate 1 is rotatably mounted with a support column 2, and the bottom of the support column 2 is fixedly connected with a wheel bracket 3. The inner part of the wheel bracket 3 is rotatably connected with the roller 4; The inner cavity of the fixed sleeve 7 is sleeved with a bearing 8 , the top of the outer wall of the support column 2 is rotatably connected with the fixed sleeve 7 through the bearing 8 , and the top of the roller 4 is provided with a brake assembly 5 .

The brake assembly 5 includes a connecting rod 51, the connecting rod 51 is slidably inserted and sleeved on the bottom of the wheel bracket 3, the bottom of the connecting rod 51 is fixedly connected with a brake pad 52, and the bottom of the outer wall of the connecting rod 51 is slidably sleeved with a spring 53, connecting The top of the outer wall of the rod 51 is rotatably connected with a plurality of brake pedals 54 in an annular array. The outer wall of the brake pedal 54 is slidably connected to the support column 2. The bottom of the support column 2 is provided with a sleeve hole, and the inner wall of the sleeve hole is opened in an annular array. There is a slot matched with the brake pedal 54, a positioning slot is opened on the top of the inner wall of the slot, and the inner wall of the positioning slot has an inclined slope that matches the inclined groove 55 on the brake pedal 54, so as to ensure braking The stability of the sliding engagement between the pedal 54 and the positioning groove on the support column 2 enables the brake pedal 54 to limit the position of the connecting rod 51, and pushes the brake pedal 54 to separate from the positioning groove on the support column 2. The limit of the connecting rod 51 enables the spring 53 and the brake pad 52 to brake the roller 4, the top of the outer wall of the connecting rod 51 is slidingly sleeved with the inner cavity of the sleeve hole, and one side of the bottom of the brake pedal 54 is provided with an inclined groove 55 , the brake pedal 54 is slidably engaged with the positioning groove through the inclined groove 55 .

The top of the outer wall of the connecting rod 51 is provided with an annular groove, and the inner cavity of the annular groove is rotatably connected with a connecting collar 56, the connecting collar 56 can make the plurality of brake pedals 54 rotate relative to the connecting rod 51, and the plurality of brake pedal 54 can also drive the connecting rod 51 to move upward, thereby releasing the braking of the brake pads 52 to the roller 4, and the plurality of brake pedals 54 can also move synchronously through the connecting collar 56, and the plurality of brake pedals 54 are arranged in a circular array. The setting method is that when the rollers 4 face in different directions, at least one brake pedal 54 is easy to operate, one end of the brake pedal 54 is fixedly connected with the connecting collar 56, and the top of the wheel bracket 3 is provided with a through hole, through which the The inner wall of the hole is symmetrically and fixedly connected with a sliding block 57. The sliding block 57 can keep the connecting rod 51 and the brake pad 52 in the same direction as the roller 4 all the time. The inner cavity of the chute is slidably snapped.

On the basis of the above principles, in order to increase the appearance beautification and safety of the device, an annular pedal cap 24 is provided on the outer upper part of the plurality of annular brake pedals 54, which can cover all the exposed brake pedals 54 as a whole. In order to be able to release the restriction of the brake pedal 54 by the limit groove, and to perform under the rotational force of the footstep through the pedal cap 24, the upper side of the pedal cap 24 is provided with a uniform and dense distribution of rubber protrusions 25.

The working principle of the utility model: when it is used, the roller 4 can be rotated through the wheel bracket 3, the support column 2, the bearing 8 and the fixed sleeve 7, thereby changing the direction of its travel, when the roller 4 needs to be rotated, push the pedal The cap 24 drives the brake pedal 54 to slide relative to the support column 2, so that the inclined groove 55 on the bottom side of the brake pedal 54 is separated from the positioning groove on the support column 2, so that the outer wall of the brake pedal 54 is located on the support column 2. During the slot, under the action of the spring 53, the connecting rod 51 drives the brake pad 52 to descend to fit the roller 4, and the brake pedal 54 slides down in the slot on the support column 2, thereby braking the roller 4. ;

When it is necessary to release the braking of the roller 4, the brake pedal 54 is driven to slide up in the slot on the support column 2 until the brake pedal 54 corresponds to the positioning groove on the support column 2. At this time, the brake pedal 54 The connecting rod 51 is driven up by the connecting collar 56, so that the brake pad 52 is lifted up and separated from the roller 4, and then the brake pedal 54 is pushed to slide, so that the inclined groove 55 at the bottom of the brake pedal 54 and the positioning groove on the support column 2 slide. It can be snapped.

Finally, it should be noted that the above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. , it can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements to some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model, All should be included within the protection scope of the present invention.

Claims (7)

1. A universal wheel convenient for braking comprises a mounting plate (1), a supporting column (2) mounted at the bottom of the mounting plate (1), a wheel bracket (3) mounted at the bottom of the supporting column (2) and a roller (4) mounted in the wheel bracket (3), and is characterized in that the mounting plate (1) is rotatably connected with the top of the supporting column (2), the bottom of the supporting column (2) is fixedly connected with the top of the wheel bracket (3), a trepanning (21) with a downward opening is arranged in the supporting column (2), and the trepanning (21) penetrates through the wheel bracket (3); a brake block (52) positioned at the bottom of the support column (2) is arranged in the wheel bracket (3), and a brake component (5) connected with the brake block (52) is sleeved in the sleeve hole (21) in a sliding manner;

the brake assembly (5) comprises a connecting rod (51), springs (53) and brake pedals (54), the bottom of the connecting rod (51) is fixedly connected with the brake disc (52), the connecting rod (51) is sleeved with the springs (53) located at the bottom of the top plate of the wheel support (3), the tops of the springs (53) are fixedly connected with the bottom of the top plate of the wheel support (3), the tops of the side surfaces of the connecting rod (51) are rotatably connected with the plurality of brake pedals (54), the plurality of brake pedals (54) are distributed at equal intervals in the circumferential direction, the brake pedals (54) penetrate through the side wall of the support column (2), pedal caps (24) are mounted on the brake pedals (54), and rubber convex parts (25) distributed in the circumferential direction are formed on the upper side of the pedal caps (24).

2. A conveniently braked universal wheel according to claim 1, characterized in that a through slot (22) is formed in the side surface of the supporting column (2), the slot (22) extends along the central axis direction of the supporting column (2), the slot (22) is matched with the brake pedal (54) one by one, so that the brake pedal (54) slides along the direction of the slot (22); and a positioning groove (23) is formed in the top of one side of the inner wall of the slot (22).

3. The universal wheel convenient for braking as claimed in claim 2, wherein a chute (55) is formed at one side of the bottom of the brake pedal (54), and the brake pedal (54) is slidably clamped with the positioning groove (23) through the chute (55).

4. The conveniently-braked universal wheel according to claim 1, wherein an annular groove (58) is formed in the top of the side face of the connecting rod (51), a connecting sleeve ring (56) is rotatably connected to an inner cavity of the annular groove (58), and one end of the brake pedal (54) is fixedly connected with the connecting sleeve ring (56).

5. A conveniently braked universal wheel according to claim 1, wherein a guide part is formed between said connecting rod (51) and said sleeve hole (21), and comprises slide blocks (57) fixedly connected to the inner wall of said sleeve hole (21) in bilateral symmetry and slide grooves (59) formed on the side surfaces of said connecting rod (51) and adapted to said slide blocks (57), said slide blocks (57) being slidably connected to said slide grooves (59) so that the connecting rod is not rotationally moved up and down.

6. The conveniently-braked universal wheel according to claim 1, wherein a bearing part is formed at the rotary connection position of the mounting plate (1) and the supporting column (2), the bearing part comprises a fixing sleeve (7) fixedly connected to the bottom of the mounting plate (1), a bearing (8) is sleeved in an inner cavity of the fixing sleeve (7), and the top of the outer wall of the supporting column (2) is rotatably connected with the fixing sleeve (7) through the bearing (8).

7. A conveniently braked universal wheel according to claim 1, characterised in that the length of the horizontal projection of the brake pedal (54) is greater than the length of the edge of the horizontal projection of the roller (4) to the centre of the projection of the connecting rod (51).

Images