Brake mechanism, brake wheel and retractable door

Abstract

The utility model discloses a brake mechanism, a brake wheel and a retractable door. The brake mechanism comprises a fixing frame, a locking frame and a brake assembly. A shaft containing notch is formed between the two ends of the metal brake, the brake rotating shaft is installed in the shaft containing notch, and the metal brake rotates around the brake rotating shaft. A first elastic sheet is arranged at one end of the metal brake; the other end of the metal brake is rotatably connected to one end of the driving frame; the other end of the driving frame is rotatably connected to one end of the locking frame; the other end of the locking frame is rotatably connected to the locking rotating shaft; the metal brake is provided with a brake clamping opening. According to the scheme, the position of the brake mechanism is fixed through the fixing frame, the brake clamping opening is driven to be connected to the wheel structure in a clamped mode through mutual transmission between the driving frame and the metal brake, then the metal brake is further locked through rotation of the locking frame, the structure of the brake mechanism is simplified, the brake steps are simple, and the brake efficiency is improved. The problems that a brake structure of a small-size wheel structure is complex, consequently, the brake structure is difficult to install, and the use cost is high are solved.

Description

Technical Field

[0001] The utility model relates to the field of brake structures, in particular to a brake mechanism, a brake wheel and a telescopic door. Background Art

[0002] The existing brake mechanism is installed on the wheel structure and can be used to provide a braking function for the wheel structure. The existing brake structure types include drum brakes, disc brakes, holding brakes, expansion brakes, etc. However, the structure of the existing brake mechanism is complex, and the installation, disassembly and braking operations are cumbersome. Especially for a large number of small wheel structures, the size of the wheel structure limits the installation position of the above-mentioned brake structure, and generally requires additional customized brake structure to adapt to the small-sized wheel structure, which also leads to an increase in installation costs. Utility Model Content

[0003] The purpose of the utility model is to propose a brake mechanism, which fixes the position of the brake mechanism through a fixing frame, and utilizes the mutual transmission between the driving frame and the metal brake to drive the brake clamp to be clamped on the wheel structure, and then utilizes the rotation of the locking frame to further lock the metal brake, thereby simplifying the structure of the brake mechanism and simplifying the braking steps.

[0004] The utility model also provides a brake wheel, which is provided with the above-mentioned brake mechanism.

[0005] The utility model also provides a telescopic door, which is provided with the above-mentioned brake mechanism.

[0006] To achieve this purpose, the utility model adopts the following technical solutions:

[0007] A brake mechanism comprises: a fixing frame, a locking frame and a brake assembly;

[0008] The fixing frame is provided with a fixing slot, and the fixing slot is provided with a locking shaft and a brake shaft; the brake assembly comprises: a driving frame and a metal brake;

[0009] A shaft-accommodating recess is provided between the two ends of the metal brake, the brake shaft is installed in the shaft-accommodating recess, and the metal brake rotates around the brake shaft; a first spring sheet is provided at one end of the metal brake, and the first spring sheet is fixed in the fixing groove;

[0010] The other end of the metal brake is rotatably connected to one end of the driving frame; the other end of the driving frame is rotatably connected to one end of the locking frame; the other end of the locking frame is rotatably connected to the locking shaft;

[0011] The metal brake is provided with a brake clamp.

[0012] Preferably, the metal brake is provided with a second spring sheet; the second spring sheet extends to the fixing groove and is limited in the fixing groove; the first spring sheet and the second spring sheet form a spring sheet distance difference in the fixing groove.

[0013] Optimally, the first spring sheets are arranged in pairs, and the metal brake is provided with a spring sheet separation opening between two of the first spring sheets; the second spring sheet passes through the spring sheet separation opening.

[0014] Optimally, the second elastic sheet extends through the shaft receiving recess and moves around the brake shaft.

[0015] Optimally, the fixing groove is provided with a first groove wall and a second groove wall extending in different directions, the first groove wall and the second groove wall are connected, and one end of the second elastic sheet is limited to an angle between the first groove wall and the second groove wall.

[0016] Optimally, the shaft-accommodating recess is arranged close to the first elastic piece.

[0017] Optimally, the metal brake is provided with brake pads, one end of a pair of the brake pads are respectively connected to the surface of the metal brake, the other ends of the brake pads are inclined toward and close to each other, and the two brake pads form the brake clamping opening at the end where they are close to each other.

[0018] Optimally, the metal brake is provided with a brake opening; one end of a pair of brake pads are respectively connected to the two sides of the brake opening facing each other; the other end of the brake pads extends obliquely and approaches the middle of the brake opening, and the brake pads and the brake opening surround to form the brake clamp opening.

[0019] A brake wheel, comprising: a wheel structure and the above-mentioned brake mechanism;

[0020] The wheel structure is provided with a wheel hub and a tire, wherein the tire is mounted on the outer ring of the wheel hub; the brake clamp clamps the wheel hub and is limited between the wheel hub and the tire.

[0021] A telescopic door is provided with a plurality of wheel structures and the above-mentioned brake mechanism, or is provided with the above-mentioned brake wheel.

[0022] Compared with the prior art, one of the above technical solutions has the following beneficial effects:

[0023] The present invention provides a brake mechanism, which fixes the position of the brake mechanism through a fixing frame, and utilizes the mutual transmission between a driving frame and a metal brake to drive a brake clamp to be clamped on a wheel structure, and then utilizes the rotation of a locking frame to further lock the metal brake, thereby simplifying the structure of the brake mechanism and simplifying the braking steps, thereby solving the problem that the brake structure of a small wheel structure is complex, resulting in difficulty in installing the brake structure and high cost of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a schematic structural diagram of one embodiment of a brake mechanism;

[0025] Figure 2 is a schematic structural diagram of one embodiment of a brake mechanism;

[0026] Figure 3 It is a structural schematic diagram of one embodiment of a brake wheel;

[0027] Figure 4 It is a structural schematic diagram of one embodiment of a metal brake.

[0028] in:

[0029] Fixed frame 1, locking frame 2, brake assembly 3; wheel structure 4;

[0030] Fixed groove 11; locking shaft 12, brake shaft 13; first groove wall 14, second groove wall 15;

[0031] Driving frame 31, metal brake 32;

[0032] Tighten pedal 21;

[0033] Brake clamp opening 320; shaft receiving notch 321; first spring sheet 322; second spring sheet 323; spring sheet distance difference 324; spring sheet separation opening 325; driving pedal 326; brake clamp plate 327; brake opening 328;

[0034] Wheel hub 41 and tire 42 . DETAILED DESCRIPTION

[0035] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0036] In the description of the present utility model, it is necessary to understand that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "left", "right", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside", "inner side", "outer side", "inner end", "outer end", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features, which are used to distinguish and describe the features, without distinction of order or importance. In the description of the present utility model, unless otherwise specified, "multiple" means more than two.

[0037] like Figure 1-4 , a brake mechanism, comprising: a fixing frame 1, a locking frame 2 and a brake assembly 3;

[0038] The fixing frame 1 is provided with a fixing groove 11, and the fixing groove 11 is provided with a locking shaft 12 and a brake shaft 13; the brake assembly 3 includes: a driving frame 31 and a metal brake 32;

[0039] A shaft receiving notch 321 is provided between the two ends of the metal brake 32, the brake shaft 13 is installed in the shaft receiving notch 321, and the metal brake 32 rotates around the brake shaft 13; a first elastic piece 322 is provided at one end of the metal brake 32, and the first elastic piece 322 is fixed to the fixing groove 11;

[0040] The other end of the metal brake 32 is rotatably connected to one end of the driving frame 31; the other end of the driving frame 31 is rotatably connected to one end of the locking frame 2; the other end of the locking frame 2 is rotatably connected to the locking shaft 12;

[0041] The metal brake 32 is provided with a brake clamping opening 320 .

[0042] The present solution provides a brake mechanism, which fixes the position of the brake mechanism through a fixed frame 1, and utilizes the mutual transmission between the driving frame 31 and the metal brake 32 to drive the brake clamp 320 to be clamped on the wheel structure 4, and then utilizes the rotation of the locking frame 2 to further lock the metal brake 32, thereby simplifying the structure of the brake mechanism and simplifying the braking steps, thereby solving the problem that the brake structure of the small-sized wheel structure 4 is complex, resulting in difficulty in installing the brake structure and high cost of use.

[0043] Specifically, the fixing frame 1 is used to fix the overall position of the brake mechanism, for example, it can be installed on the vehicle body, and the installation method can be screw fixing, welding fixing, clamp fixing, etc.; in this way, when it is necessary to install the brake mechanism on a small-sized wheel structure, it is only necessary to install the fixing frame 1 on each wheel structure, and the installation steps are simple and the cost is low; the fixing frame 1 is provided with a fixing groove 11, and the fixing groove 11 is provided with a locking shaft 12 and a brake shaft 13; when it is necessary to start the brake function, the driving frame 31 can be manually driven or mechanically driven to rotate in the direction close to the fixing groove 11, driving the metal brake 32 to rotate around the brake shaft 13, such as Figure 3 The direction of the arrow is the rotation direction of the metal brake 32; the shaft recess 321 of the metal brake 32 is provided with a brake shaft 13; when the metal brake 32 is driven to rotate, the metal brake 32 can rotate around the brake shaft 13 as the central axis; the first elastic piece 322 at one end of the metal brake 32 is fixed to the fixing groove 11, and the first elastic piece 322 is deformed, so that when the driving frame 31 drives the metal brake 32 to rotate, the first elastic piece 322 stores elastic potential energy, and also utilizes the elastic force of the first elastic piece 322 to prevent the metal brake 32 from being damaged; the metal brake 32 is finally rotated to bring the brake clamp 320 toward the wheel structure 4; the size, shape or structure of the brake clamp 320 can be designed according to needs, and the brake clamp 320 can clamp the wheel structure 4 Any position, such as the wheel hub 41, the tire 42, etc.; the brake clamp 320 is clamped on the wheel structure 4, thereby preventing the wheel structure 4 from rotating to achieve the braking effect; in this regard, in order to further improve the braking effect of the brake clamp 320, it is necessary to start the locking function; specifically, the locking frame 2 can be further driven to rotate in the direction of the fixing groove 11, and the locking frame 2 rotates around the locking shaft 12; since one end of the locking frame 2 is rotatably connected to the metal brake 32, the rotation of the locking frame 2 drives the metal brake 32 to further rotate around the brake shaft 13, so that the brake clamp 320 is more tightly clamped with the wheel structure 4, and the brake clamp 320 can be completely attached to the wheel structure 4, thereby limiting the rotation of the wheel structure 4 and achieving the effect of locking the brake clamp 320. When the braking state needs to be released, the locking frame 2 and the driving frame 31 can be reset in turn, and the metal brake 32 will be reset under the elastic action of the first spring sheet 322, so that the brake clamp 320 is separated from the wheel structure 4. Thus, the brake structure of the present invention is simple, easy to operate, and suitable for small-sized wheel structures.

[0044] Optimally, the metal brake 32 is provided with a second elastic sheet 323 ; the second elastic sheet 323 extends to the fixing slot 11 and is limited in the fixing slot 11 ; the first elastic sheet 322 and the second elastic sheet 323 form an elastic sheet distance difference 324 in the fixing slot 11 .

[0045] In this solution, the first spring piece 322 and the second spring piece 323 are preferably used to improve the strength of the metal brake 32. When the metal brake 32 rotates around the brake shaft 13, the metal brake 32 enhances the overall strength of the metal brake 32 under the joint action of the first spring piece 322 and the second spring piece 323. The first spring piece 322 and the second spring piece 323 are respectively limited to the fixing groove 11, so that the first spring piece 322 and the second spring piece 323 form a spring piece distance difference 324, which can avoid the pressure from being concentrated on a single spring piece, so that the force on the spring piece is more uniform.

[0046] Optimally, the first elastic sheets 322 are arranged in pairs, and the metal brake 32 is provided with an elastic sheet separation opening 325 between two of the first elastic sheets 322 ; the second elastic sheet 323 passes through the elastic sheet separation opening 325 .

[0047] The second spring piece 323 is arranged at the spring piece partition opening 325 between a pair of first spring pieces 322, which is equivalent to the first spring piece 322 being arranged on both sides of the second spring piece 323; the metal brake 32 can contact the fixing groove 11 through at least three spring pieces, and a triangular structure is formed between the first spring piece 322 and the second spring piece 323, thereby improving the stability of the metal brake 32 at one end of the fixing groove 11.

[0048] Optimally, the second elastic piece 323 extends through the shaft receiving recess 321 and moves around the brake shaft 13 .

[0049] The extended position of the second spring piece 323 can pass through the shaft-containing recess 321, that is, the second spring piece 323 can pass through the brake shaft 13. In the initial state of the second spring piece 323 or during the activity of the second spring piece 323, the second spring piece 323 contacts the brake shaft 13. The second spring piece 323 can move around the brake shaft 13, and the brake shaft 13 is fixed to the fixing groove 11. The brake shaft 13 can support the second spring piece 323, thereby transferring part of the pressure of the second spring piece 323 to the brake shaft 13, which not only stabilizes the activity trajectory of the second spring piece 323, but also improves the strength of the second spring piece 323.

[0050] Optimally, the fixing groove 11 is provided with a first groove wall 14 and a second groove wall 15 extending in different directions, the first groove wall 14 and the second groove wall 15 are connected, and one end of the second elastic sheet 323 is limited to the angle between the first groove wall 14 and the second groove wall 15.

[0051] The first groove wall 14 and the second groove wall 15 face different directions respectively, thereby forming an angle structure at the connection point between the two. One end of the second elastic piece 323 can be against the angle, so as to limit the movement of one end of the second elastic piece 323 by the angle, so that when the metal brake 32 rotates around the locking shaft 12, the second elastic piece 323 is deformed around the angle as a fulcrum.

[0052] Optimally, the shaft receiving recess 321 is disposed close to the first elastic piece 322 .

[0053] The shaft-containing recess 321 is arranged close to the first elastic sheet 322, so that the brake shaft 13 can be close to the first elastic sheet 322. According to the lever principle, the metal brake 32 rotates with the brake shaft 13 as the shaft, and the distance between the brake shaft 13 and the first elastic sheet 322 is short, and the supporting force of the first elastic sheet 322 is increased; the distance between the metal brake 32 and the brake shaft 13 is long at the end away from the brake shaft 13, that is, the metal brake 32 only needs to use a smaller force to drive the metal brake 32 to rotate; in this way, according to this distribution, the supporting force of the first elastic sheet 32 ​​can be greatly increased, and the difficulty of driving the metal brake 32 can be reduced.

[0054] The locking frame 2 is provided with a locking pedal 21 , and / or the driving frame 31 is provided with a driving pedal 326 .

[0055] In this solution, the locking frame 2 can be driven to move by directly stepping on the tightening pedal 21 of the brake mechanism, or the driving frame 31 can be driven to move by directly stepping on the driving pedal 326, which is easy to operate.

[0056] Optimally, the metal brake 32 is provided with a brake pad 327, one end of a pair of the brake pads 327 is respectively connected to the surface of the metal brake 32, and the other ends of the brake pads 327 are inclined toward and close to each other, and the two brake pads 327 form the brake clamping opening 320 at the end close to each other.

[0057] The brake pads 327 are arranged in pairs, and the two brake pads 327 are close to each other to form a brake clamping opening 320; one brake pad 327 can be inserted between the tire 42 and the outer ring of the wheel hub 41, and one brake pad 327 can be located on the inner ring of the wheel hub 41, thereby clamping the wheel structure 4 to achieve the braking function.

[0058] Optimally, the metal brake 32 is provided with a brake opening 328; one end of a pair of brake pads 327 are respectively connected to the two sides of the brake opening 328 facing each other; the other end of the brake pad 327 extends obliquely and approaches the middle of the brake opening 328, and the brake pad 327 and the brake opening 328 surround to form the brake clamp opening 320.

[0059] The shape of the brake clamp 320 can be designed into any structure as needed; in the optimal embodiment, the brake clamps 327 are arranged on two opposite sides of the brake opening 328; the brake clamps 327 are inclined and are close to the middle of the brake opening 328 at the outermost end; in this way, a brake clamp 320 is formed between the brake clamps 327; and the present solution further provides a brake opening 328 between the brake clamps 327. When the metal brake 32 is attached to the wheel structure 4, a partial area of ​​the wheel structure 4 can extend into the brake opening 328, thereby improving the contact position between the wheel structure 4 and the brake clamp 320, making the braking more stable.

[0060] A brake wheel, comprising: a wheel structure 4 and the above-mentioned brake mechanism;

[0061] The wheel structure 4 is provided with a wheel hub 41 and a tire 42 , and the tire 42 is mounted on the outer ring of the wheel hub 41 ; the brake clamp 320 clamps the wheel hub 41 and is limited between the wheel hub 41 and the tire 42 .

[0062] The brake mechanism can clamp the brake clamp 320 to any structure of the wheel structure 4 as needed; in the optimal embodiment, the brake mechanism clamps the brake clamp 320 to the outer ring of the wheel hub 41, and the brake clamp 320 can elastically deform the tire 42 when clamping the wheel hub 41, so that one side of the brake clamp 320 extends into and is clamped between the wheel hub 41 and the tire 42, and the other side of the brake clamp 320 can be located at the inner ring of the wheel hub 41.

[0063] A telescopic door is provided with a plurality of wheel structures 4 and the above-mentioned brake mechanism, or is provided with the above-mentioned brake wheel.

[0064] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A brake mechanism, characterized in that: include: Mounting brackets, locking brackets and brake assemblies; The fixing frame is provided with a fixing slot, and the fixing slot is provided with a locking shaft and a brake shaft; the brake assembly comprises: a driving frame and a metal brake; A shaft-accommodating recess is provided between the two ends of the metal brake, the brake shaft is installed in the shaft-accommodating recess, and the metal brake rotates around the brake shaft; a first spring sheet is provided at one end of the metal brake, and the first spring sheet is fixed in the fixing groove; The other end of the metal brake is rotatably connected to one end of the driving frame; the other end of the driving frame is rotatably connected to one end of the locking frame; the other end of the locking frame is rotatably connected to the locking shaft; The metal brake is provided with a brake clamp.

2. A brake mechanism according to claim 1, characterized in that: The metal brake is provided with a second spring sheet; the second spring sheet extends to the fixing groove and is limited in the fixing groove; the first spring sheet and the second spring sheet form a spring sheet distance difference in the fixing groove.

3. A brake mechanism according to claim 2, characterized in that: The first spring sheets are arranged in pairs, and the metal brake is provided with a spring sheet separation opening between the two first spring sheets; the second spring sheet passes through the spring sheet separation opening.

4. A brake mechanism according to claim 2 or 3, characterized in that: The second elastic sheet extends through the shaft receiving recess and moves around the brake rotating shaft.

5. A brake mechanism according to claim 2, characterized in that: The fixing groove is provided with a first groove wall and a second groove wall in different extending directions, the first groove wall and the second groove wall are connected, and one end of the second elastic sheet is limited to the angle between the first groove wall and the second groove wall.

6. A brake mechanism according to claim 1, characterized in that: The shaft receiving recess is arranged close to the first elastic piece.

7. A brake mechanism according to any one of claims 1 to 6, characterized in that: The metal brake is provided with brake pads, one end of a pair of the brake pads is respectively connected to the surface of the metal brake, and the other ends of the brake pads are inclined toward and close to each other, and the two brake pads form the brake clamping opening at the end close to each other.

8. A brake mechanism according to claim 7, characterized in that: The metal brake is provided with a brake opening; one end of a pair of brake pads is respectively connected to two opposite sides of the brake opening; the other end of the brake pad extends obliquely and approaches the middle of the brake opening, and the brake pads and the brake opening surround to form the brake clamping port.

9. A brake wheel, characterized in that: include: A wheel structure and a brake mechanism as claimed in any one of claims 1 to 8; The wheel structure is provided with a wheel hub and a tire, wherein the tire is mounted on the outer ring of the wheel hub; the brake clamp clamps the wheel hub and is limited between the wheel hub and the tire.

10. A telescopic door, characterized in that: A plurality of wheel structures and a brake mechanism as described in any one of claims 1 to 8 are provided, or a brake wheel as described in claim 9 is provided.

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