Universal wheel brake device

Abstract

The utility model discloses a universal wheel brake device, and relates to the technical field of universal wheels. Comprising a fixing frame, a fixing shaft is arranged in the fixing frame, a connecting seat is arranged on the outer side of the fixing frame, and a roller is arranged on the outer side of the fixing shaft; the brake mechanism is arranged on the outer side of the fixing frame and used for controlling the rolling wheels, the brake mechanism comprises a rotating assembly and a speed reduction assembly, the rotating assembly is arranged on the outer side of the fixing frame and used for transmitting power, and the speed reduction assembly is arranged in the rotating assembly. Through the arrangement of the rotating assembly and the speed reduction assembly, the friction ring, the first gear, the second gear, the connecting disc, the sliding block, the friction block, the spring and the sliding plate are matched, so that the rotating speed of the rolling wheel can be controlled, and the situation that the rotating speed of the universal wheel cannot be controlled is avoided; therefore, the moving speed of the universal wheel is gradually increased in the downhill process, and potential safety hazards exist.

Description

Technical Field

[0001] This utility model relates to the field of omnidirectional wheel technology, specifically to an omnidirectional wheel braking device. Background Technology

[0002] 360-degree swivel casters are also known as swivel casters. Their structure allows them to rotate 360 ​​degrees horizontally. Casters are a general term that includes swivel casters and fixed casters. Fixed casters do not have a rotating structure and can only rotate vertically. These two types of casters are usually used together. For example, a handcart has two fixed wheels at the front and two swivel casters at the back near the push handle.

[0003] During the use of casters, a braking device is often required to control them. Existing caster braking devices have two control states: braking and unlocking. This makes it impossible to control the rotation speed of the casters during movement, causing the speed of the casters to gradually increase when going downhill, thus posing a safety hazard. Therefore, a new caster braking device is proposed. Utility Model Content

[0004] The purpose of this utility model is to solve the problem that the rotation speed of the omnidirectional wheel cannot be controlled during its movement, which causes the speed of the omnidirectional wheel to gradually increase when going downhill, thus posing a safety hazard. This utility model provides an omnidirectional wheel braking device.

[0005] To achieve the above objectives, this utility model specifically adopts the following technical solution:

[0006] A universal wheel brake device, comprising:

[0007] A fixing frame, wherein a fixing shaft is provided inside the fixing frame, a connecting seat is provided on the outside of the fixing frame, and a roller is provided on the outside of the fixing shaft;

[0008] A braking mechanism is located on the outside of the fixed frame and is used to control the roller. The braking mechanism includes a rotating component and a deceleration component. The rotating component is located on the outside of the fixed frame and is used to transmit power. The deceleration component is located inside the rotating component and is used to adjust the rotation speed of the roller. The rotating component works with the deceleration component to limit the speed of the roller.

[0009] Furthermore, the rotating assembly includes a fixed cover disposed on the outside of the fixed frame. Inside the fixed cover, a first gear and a second gear are respectively provided. The first gear meshes with the second gear, and the first gear is disposed on the outside of the roller. A connecting plate is disposed on the outside of the second gear. A friction ring is sleeved on the outside of the connecting plate and is connected to the fixed cover. Multiple sliding grooves are formed on the side wall of the connecting plate, and multiple through grooves are formed on the outside of the connecting plate. One side of the through groove penetrates the fixed cover and is connected to the sliding groove. A control component for adjusting the position of the deceleration assembly is also provided on the outside of the fixed cover.

[0010] Furthermore, the control component includes a fixing plate, which is connected to a fixing cover. A connecting shaft is provided on the outer side of the fixing plate, and a control plate is rotatably connected to the outer side of the connecting shaft.

[0011] Furthermore, the deceleration assembly includes a sliding plate and a rotating disk. The rotating disk is rotatably connected to a fixed plate and connected to a control plate. The rotating disk has multiple adjustment slots inside, with the opening direction of the adjustment slots parallel to the roller axis. There are multiple sliding plates, each corresponding to a sliding slot, and the sliding plates slide inside the sliding slots. Connecting rods and support rods are respectively provided on the outer side of each sliding plate, and the connecting rods slide inside the through slots and adjustment slots. A spring is sleeved on the outer side of each support rod, and one end of the support rod abuts against a sliding block. Both ends of the spring are connected to the sliding plate and the sliding block, respectively. There are multiple sliding blocks, and the sliding blocks slide inside the sliding slots. Friction blocks are provided on the outer side of each sliding block.

[0012] Furthermore, the fixing plate has multiple guide grooves on the side opposite to the fixing cover, and the guide grooves correspond one-to-one with the through grooves, and the connecting rod slides inside the fixing cover.

[0013] Furthermore, a counterweight is also provided inside the sliding block.

[0014] The beneficial effects of this utility model are as follows:

[0015] This invention, through the arrangement of a rotating component and a deceleration component, achieves control over the rotational speed of the rollers by cooperating with a friction ring, a first gear, a second gear, a connecting disc, a sliding block, a friction block, a spring, and a sliding plate. This avoids the inability to control the rotational speed of the caster wheels, which would cause the speed of the caster wheels to gradually increase when going downhill, thus posing a safety hazard. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a main sectional view of the present invention;

[0018] Figure 3 This is an enlarged view of the first gear of this utility model;

[0019] Figure 4 This is a partial sectional view of the connecting disc of this utility model;

[0020] Figure 5 This is an exploded view of the rotating component of this utility model;

[0021] Figure 6 This is an enlarged view of the sliding groove of this utility model;

[0022] Figure 7 This is an enlarged view of the rotating disk of this utility model;

[0023] Reference numerals: 1. Fixed frame; 101. Roller; 102. Connecting seat; 103. Fixed shaft; 2. Rotating assembly; 201. Fixed cover; 202. Friction ring; 203. First gear; 204. Second gear; 205. Connecting plate; 206. Control plate; 207. Connecting shaft; 208. Sliding groove; 209. Through groove; 210. Fixed plate; 211. Guide groove; 3. Reduction assembly; 301. Sliding block; 302. Friction block; 303. Spring; 304. Sliding plate; 305. Connecting rod; 306. Rotating disk; 307. Adjusting groove. Detailed Implementation

[0024] 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 embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0025] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0026] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0027] All electrical components mentioned in this article are connected to an external main controller and 220V AC mains power, and the main controller can be a conventional known device such as a computer that can control it.

[0028] In the description of the embodiments of this utility model, it should be noted that the terms "inner", "outer", "upper", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is usually placed when in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0029] like Figures 1 to 7 As shown, a universal wheel brake device includes: a fixed frame 1, with a fixed shaft 103 inside the fixed frame 1 and a connecting seat 102 outside the fixed frame 1; a roller 101 is located outside the fixed shaft 103; and a brake mechanism, disposed outside the fixed frame 1, for controlling the roller 101. The brake mechanism includes a rotating component 2 and a deceleration component 3. The rotating component 2 is disposed outside the fixed frame 1 for transmitting power, and the deceleration component 3 is disposed inside the rotating component 2 for adjusting the rotation speed of the roller 101. The rotating component 2 is equipped with... The deceleration assembly 3 limits the speed of the roller 101. Specifically, during the use of the caster wheel, the rotation assembly 2 and the deceleration assembly 3 work together to brake the caster wheel to ensure its stability during the stopping process. At the same time, the rotation speed of the caster wheel is controlled by the rotation assembly 2 and the deceleration assembly 3 to ensure the stability of the speed of the caster wheel during use. The fixed shaft 103 and the connecting seat 102 both rotate relative to the fixed frame 1, and the rotation axis of the fixed shaft 103 is perpendicular to the rotation axis of the connecting seat 102.

[0030] like Figures 1 to 7As shown, the rotating assembly 2 includes a fixed cover 201, which is disposed outside the fixed frame 1. Inside the fixed cover 201 are a first gear 203 and a second gear 204, which mesh with each other. The first gear 203 is disposed outside the roller 101. A connecting plate 205 is disposed outside the second gear 204. A friction ring 202 is sleeved on the outside of the connecting plate 205 and connected to the fixed cover 201. Multiple sliding grooves 208 are formed on the side wall of the connecting plate 205, and multiple through grooves 209 are formed on the outside of the connecting plate 205. One side of each through groove 209 penetrates the fixed cover 201 and is connected to the sliding grooves 208. A control component for adjusting the position of the deceleration assembly 3 is also provided outside the fixed cover 201. Specifically, when the roller 101 rotates... During the process, the fixed shaft 103 can be driven to rotate. While the fixed shaft 103 rotates, the connecting disc 205 is driven to rotate relative to the friction ring 202. The rotating friction ring 202, in conjunction with the reduction gear 3, controls the rotation speed of the roller 101. The size of the first gear 203 is larger than that of the second gear 204. Thus, during the rotation of the fixed shaft 103, the rotation speed of the connecting disc 205 is increased by the cooperation of the first gear 203 and the second gear 204. The fixed friction ring 202, in conjunction with the reduction gear 3, limits the rotation speed of the connecting disc 205. The outer side of the fixed plate 210 is also provided with an marking groove, so that the rotation speed of the fixed shaft 103 and the roller 101 can be accurately adjusted during use. The fixed cover 201 and the fixed frame 1 can be connected by bolts or buckles.

[0031] like Figures 1 to 7 As shown, the control component includes a fixed plate 210, which is connected to a fixed cover 201. A connecting shaft 207 is provided on the outside of the fixed plate 210, and a control plate 206 is rotatably connected to the outside of the connecting shaft 207. Specifically, the fixed plate 210 and the connecting shaft 207 provide support for the control plate 206 during use, so that the control plate 206 can stably rotate the disk 306 for control. Bolts are also provided inside the rotating disk 306, so that after the position of the control plate 206 is adjusted, the position of the control plate 206 is limited by the abutment between the bolts and the fixed cover 201.

[0032] like Figures 1 to 7As shown, the deceleration assembly 3 includes a sliding plate 304 and a rotating disk 306. The rotating disk 306 is rotatably connected to the fixed plate 210 and is also connected to the control plate 206. Multiple adjustment slots 307 are provided inside the rotating disk 306, with the opening direction of the adjustment slots 307 parallel to the axis of the roller 101. Multiple sliding plates 304 are provided, each corresponding to a sliding slot 208, and the sliding plate 304 slides within the sliding slot 208. Connecting rods 305 and support rods are respectively provided on the outer side of the sliding plate 304. The connecting rods 305 slide within the through slot 209 and the adjustment slots 307. A spring 303 is sleeved on the outer side of the support rod, and one end of the support rod abuts against a sliding block 301. The roller 101 is connected to a sliding plate 304 and a sliding block 301 at both ends. Multiple sliding blocks 301 slide within the sliding groove 208. Friction blocks 302 are provided on the outer side of each sliding block 301. Specifically, when adjusting the rotation speed of the roller 101, the control plate 206 first drives the rotating disk 306 to rotate. The rotating disk 306 drives the connecting rod 305 to move linearly along the through groove 209 via the adjusting groove 307. The linearly moving connecting rod 305 drives the sliding plate 304 to move relative to the connecting disk 205. The moving sliding plate 304 controls the sliding block 301 to move, thereby adjusting the rotation speed of the roller 101. During use, groove 208 guides sliding block 301, ensuring its stability during movement. When controlling the rotation speed of roller 101, sliding block 301 and friction block 302 extend from inside sliding groove 208 under centrifugal force during the rotation of connecting disc 205. The extended friction block 302 rubs against friction ring 202, thereby controlling the rotation speed of connecting disc 205. Increasing the distance between sliding plate 304 and sliding block 301 stretches spring 303, adjusting the tension of spring 303 on sliding block 301. By controlling different extension lengths of spring 303, sliding block 301 can be pulled by different centrifugal forces. The sliding block 304 extends from inside the sliding groove 208 to adjust the rotation speed of the connecting plate 205. The faster the connecting plate 205 rotates, the greater the centrifugal force on the sliding block 301 and the friction block 302, ensuring that the friction block 302 can stably limit the speed of the connecting plate 205. When it is necessary to lock the roller 101, the sliding plate 304 is first moved relative to the sliding block 301 by the cooperation of the rotating plate 306 and the connecting rod 305. The moving sliding plate 304 pushes the sliding block 301 and the friction block 302 out of the sliding groove 208 through the support rod, so that the friction block 302 can directly contact the friction ring 202, thereby locking the connecting plate 205 and the roller 101.

[0033] like Figures 1 to 7As shown, the fixing plate 210 has multiple guide grooves 211 on the side opposite to the fixing cover 201, and the guide grooves 211 correspond one-to-one with the through grooves 209. The connecting rod 305 slides inside the fixing cover 201. Specifically, during the process of the adjusting groove 307 controlling the movement of the connecting rod 305, the guide grooves 211 further guide the movement direction of the connecting rod 305 to ensure that the connecting rod 305 can stably drive the sliding plate 304 to move in position.

[0034] like Figures 1 to 7 As shown, a counterweight is also provided inside the sliding block 301. Specifically, the density of the counterweight is greater than that of the sliding block 301, so as to adjust the magnitude of the centrifugal force on the sliding block 301 during the rotation of the connecting disk 205, ensuring that the sliding block 301 and the friction block 302 can stably extend from the sliding groove 208 during use. The counterweight and the sliding block 301 can be connected by interference fit or snap fastener.

[0035] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A universal wheel brake device, characterized in that, include: A fixing frame (1) is provided inside the fixing frame (1), a fixing shaft (103) is provided on the outside of the fixing frame (1), and a connecting seat (102) is provided on the outside of the fixing shaft (103). A braking mechanism is provided on the outside of the fixed frame (1) for controlling the roller (101). The braking mechanism includes a rotating component (2) and a deceleration component (3). The rotating component (2) is provided on the outside of the fixed frame (1) for transmitting power. The deceleration component (3) is provided inside the rotating component (2) for adjusting the rotation speed of the roller (101). The rotating component (2) works with the deceleration component (3) to limit the speed of the roller (101).

2. The universal wheel brake device according to claim 1, characterized in that, The rotating assembly (2) includes a fixed cover (201), which is located outside the fixed frame (1). Inside the fixed cover (201) are a first gear (203) and a second gear (204). The first gear (203) meshes with the second gear (204), and the first gear (203) is located outside the roller (101). A connecting plate (205) is located outside the second gear (204). A friction ring (202) is sleeved on the outside of the connecting plate (205), and the friction ring (202) is connected to the fixed cover (201). Multiple sliding grooves (208) are opened on the side wall of the connecting plate (205). Multiple through grooves (209) are opened on the outside of the connecting plate (205). One side of the through groove (209) penetrates the fixed cover (201), and the through groove (209) is connected to the sliding groove (208). A control component for adjusting the position of the deceleration assembly (3) is also provided on the outside of the fixed cover (201).

3. A universal wheel brake device according to claim 2, characterized in that, The control component includes a fixing plate (210), which is connected to a fixing cover (201). A connecting shaft (207) is provided on the outside of the fixing plate (210), and a control plate (206) is rotatably connected to the outside of the connecting shaft (207).

4. A universal wheel brake device according to claim 2, characterized in that, The deceleration assembly (3) includes a sliding plate (304) and a rotating disk (306). The rotating disk (306) is rotatably connected to the fixed plate (210) and is also connected to the control plate (206). The rotating disk (306) has multiple adjustment slots (307) inside, and the opening direction of the adjustment slots (307) is parallel to the axis of the roller (101). There are multiple sliding plates (304), and each sliding plate (304) corresponds to a sliding slot (208). The sliding plate (304) slides inside the sliding slot (208). The sliding plate (304) is provided with a connecting rod (305) and a support rod on its outer side. The connecting rod (305) slides inside the through groove (209) and the adjusting groove (307). The support rod is fitted with a spring (303) on its outer side. One end of the support rod abuts against a sliding block (301). The two ends of the spring (303) are connected to the sliding plate (304) and the sliding block (301) respectively. There are multiple sliding blocks (301). The sliding blocks (301) slide inside the sliding groove (208). The sliding block (301) is provided with a friction block (302) on its outer side.

5. A universal wheel brake device according to claim 3, characterized in that, The fixing plate (210) has multiple guide grooves (211) on the side opposite to the fixing cover (201), and the guide grooves (211) correspond one-to-one with the through grooves (209), and the connecting rod (305) slides inside the fixing cover (201).

6. A universal wheel brake device according to claim 4, characterized in that, The sliding block (301) is also equipped with a counterweight.

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