Manual knob type trundle brake structure

Abstract

The utility model discloses a manual knob type trundle brake structure which comprises an operation box, steel wire outer rods are fixedly installed on the outer walls of the upper side and the lower side of the operation box, inner steel wires are installed in the steel wire outer rods in a sliding mode, ball heads are arranged at the upper end and the lower end of each inner steel wire, and a knob is arranged in the center of the outer surface of the operation box. A rotating shaft is fixedly installed on the back face of the knob, a driving gear is installed at the bottom end of the rotating shaft and located in the operation box, side rack boxes are connected to the two sides of the driving gear in a meshed mode, and the top end of the inner steel wire is arranged in the side rack boxes and fixedly connected with the side rack boxes. The trundle brake structure has the actual use effect of manually rotating and controlling the trundle to brake, people do not need to lower the head to find the position of the brake pad in the use process, only the knob needs to be manually rotated, trundle brake operation is more convenient and faster, practicability is higher, manual blind operation can be conducted without attention transfer, and the trundle brake structure is convenient to use and high in practicability. The use is more convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to a trundle structure technical field, concretely is a hand -operated knob formula's trundle brake structure. BACKGROUND

[0002] Trundle is a kind of wheel installed at the bottom of equipment or article, mainly used to realize convenient movement. It is also called roller, wheel or axle, and is an indispensable component in modern industry and daily life;

[0003] The core function of trundle is to enable the easy movement of articles or equipment, especially in the scene needing to be frequently carried or adjusted position. It makes heavy object move more labor-saving by reducing friction;

[0004] Most of the existing luggage or transport box will use foot brake type trundle, however, in the above-mentioned trundle brake, manual low head needs to find the position of trundle brake pad to carry out foot brake work, and in actual use, it needs to low head to find the position of brake pad, inconvenient operation, poor practicability, therefore, the utility model provides a hand -operated knob formula's trundle brake structure that only needs to carry out manual rotation to carry out trundle brake. UTILITY MODEL CONTENTS

[0005] The utility model is to provide a hand -operated knob formula's trundle brake structure to solve the problem in the above-mentioned background art.

[0006] To achieve the above object, the utility model provides the following technical scheme: a hand -operated knob formula's trundle brake structure, including operation box, the upper and lower two sides outer wall of operation box are all fixedly installed with steel wire outer rod, the inside sliding of steel wire outer rod is installed with inner steel wire, the upper and lower ends of inner steel wire are all provided with ball head, the center position of the outer surface of operation box is provided with knob, the back of knob is fixedly installed with rotating shaft, the bottom of rotating shaft and located inside operation box is installed with driving gear, the both sides of driving gear are all hinged connection with side rack box, the top end of inner steel wire is placed in the inside of side rack box, and the top end of inner steel wire is fixedly connected with side rack box.

[0007] Preferably, the bottom of the steel wire outer rod is fixedly connected with the trundle body, and the trundle body is provided with a brake pad.

[0008] Preferably, the bottom ball head of the inner steel wire penetrates into the inside of the trundle body, and the inner steel wire is embedded in one end of the brake pad. The ball head and the brake pad are movably connected.

[0009] Preferably, the inner steel wire and the ball head adopt an integral molding structure design.

[0010] Preferably, the outer portion of the knob is provided with anti -skid relief.

[0011] Compared with the prior art, the utility model has the advantages that:

[0012] The utility model discloses a gear transmission structure for controlling brake pad is set up in the inside of operating box, and the inside steel wire is driven to carry out up and down telescopic displacement in the inside of steel wire outer feeling through the manual rotation mode of operating box, and the inside steel wire can be used as displacement transmission structure, and the displacement effect of rotation is acted on the brake pad of the caster, so that the manual control operation of brake pad is controlled through the manual rotation mode and is braked or is relieved, in actual use, the caster brake structure of the utility model has the actual use effect of manual rotation control caster and brakes, and when using, only needs to manually rotate the knob, and the caster brake operation is more convenient, and the practicality is stronger, and the manual blind operation can be carried out without attention shift, and the use is more convenient, and the structure use effect is better, and the overall structure is simple, and is suitable for implementation use. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is the caster brake structure assembly schematic diagram of the utility model embodiment;

[0014] Figure 2 It is the inside structure schematic diagram of operating box of the utility model embodiment;

[0015] Figure 3 It is the inside structure schematic diagram of side rack box of the utility model embodiment;

[0016] Figure 4 It is the outside structure schematic diagram of steel wire outer pole of the utility model embodiment;

[0017] Figure 5 It is the bottom down structure schematic diagram of caster brake structure of the utility model embodiment;

[0018] Figure 6 It is the A area enlarged structure schematic diagram of the utility model embodiment Figure 5 .

[0019] In the drawing: 1, operating box;2, knob;3, steel wire outer pole;4, inside steel wire;5, ball head;6, caster body;7, brake pad;8, rotation shaft;9, driving gear;10, side rack box. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative efforts belong to the scope of the present application.

[0021] In the description of the present application, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first" and "second" are for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0022] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "provided with", "connection" and the like should be broadly understood, for example, "connection" can be fixed connection, can also be detachable connection, or integrally connected; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the communication between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0023] Please refer to Figures 1-5 The present application provides an embodiment: a manual knob type trundle brake structure, comprising an operation box 1, the upper and lower two sides of the operation box 1 are fixedly provided with steel wire outer rods 3, the inner steel wires 4 are slidably installed in the steel wire outer rods 3, the upper and lower ends of the inner steel wires 4 are provided with ball heads 5, the inner steel wires 4 and the ball heads 5 are designed in an integral molding type structure, and the decoupling strand design of the ball heads 5 can be used for preventing the inner steel wires 4 from being pulled out of the structure;

[0024] A knob 2 is arranged at the center of the outer surface of the operation box 1, and in order to achieve better anti-skid contact effect, the outer part of the knob 2 is provided with anti-skid convex patterns, the back surface of the knob 2 is fixedly provided with a rotating shaft 8, the bottom end of the rotating shaft 8 and located in the interior of the operation box 1 is provided with a driving gear 9, the two sides of the driving gear 9 are both meshingly connected with side rack boxes 10, the top end of the inner steel wire 4 is arranged in the interior of the side rack box 10, and the top end of the inner steel wire 4 is fixedly connected with the side rack box 10.

[0025] In this structural design, when knob 2 is manually rotated counterclockwise, knob 2 can synchronously drive the drive gear 9 to rotate counterclockwise via the rotating shaft 8 on the back. When the drive gear 9 rotates counterclockwise, the two meshing side rack boxes 10 on its outer side will move linearly outwards, while the reference... Figure 2 As shown, the left side rack box 10 moves down, while the right side rack box 10 moves up, so that the movement of the side rack box 10 can drive the inner steel wire 4 inside to perform synchronous displacement work.

[0026] Furthermore, the bottom end of the outer steel wire rod 3 is fixedly connected to the caster body 6, and the caster body 6 is provided with brake pads 7. The caster body 6 is a mature existing technology caster product on the market, which can be obtained without creative labor, and this manual will not describe it in detail.

[0027] For details, please refer to the appendix of the instruction manual. Figure 4 as well as Figure 5 As shown, the ball head 5 at the bottom of the inner steel wire 4 is inserted into the interior of the caster body 6, and the inner steel wire 4 is embedded in one end of the brake pad 7, with the ball head 5 and the brake pad 7 being movably connected.

[0028] The above structure is explained in conjunction with the accompanying drawings. When the left side rack box 10 moves under the rotation of the drive gear 9, the inner steel wire 4 inside it can move downward synchronously. When the inner steel wire 4 moves downward, its bottom end will abut against the brake pad 7. Thus, the brake pad 7 can be adjusted by pressing down through the downward movement of the inner steel wire 4, so that the brake pad 7 can brake the caster body 6.

[0029] When the brake needs to be released, knob 2 is manually rotated clockwise. The clockwise rotation of knob 2 synchronously drives the drive gear 9 to rotate clockwise. When the drive gear 9 rotates clockwise, the side rack box 10 on its left side moves upward. This movement of the side rack box 10 drives the inner steel wire 4 to move upward. The upward movement of the inner steel wire 4 drives the brake pad 7 at the bottom to move upward, thereby releasing the brake pad 7 from its braking state. At this time, the caster body 6 can roll.

[0030] Working principle: In use, the knob 2 of this utility model's caster brake structure can be manually rotated counterclockwise. When the knob 2 is rotated counterclockwise, it synchronously drives the drive gear 9 to rotate counterclockwise via the rotating shaft 8 on the back. When the drive gear 9 rotates counterclockwise, the two meshing side rack boxes 10 on its outer side will move linearly outwards. (Refer to the instruction manual.) Figure 2It is understood that the left side rack box 10 moves down, and the right side rack box 10 moves up, so that the inner steel wire 4 inside the rack box 10 is driven to move synchronously;

[0031] When the left side rack box 10 moves under the rotation of the driving gear 9, the inner steel wire 4 inside the rack box 10 moves downward synchronously, and the bottom end of the inner steel wire 4 abuts against the brake pad 7, so that the brake pad 7 is pressed downward to brake the trolley body 6;

[0032] When the brake state needs to be released, the knob 2 is manually rotated clockwise, and the clockwise rotating knob 2 drives the driving gear 9 to rotate clockwise synchronously, and when the driving gear 9 rotates clockwise, the left side rack box 10 moves upward, so that the inner steel wire 4 is driven to move upward, and the bottom end of the brake pad 7 is moved upward, so that the brake state of the brake pad 7 is released, and the trolley body 6 can roll.

[0033] The right side rack box 10 is also connected to the same type of trolley body 6 through the steel wire outer rod 3 and the inner steel wire 4, so that the brake control of the two trolley bodies 6 can be completed synchronously when rotating, and the brake control is synchronous and convenient to use.

[0034] According to the above structure, the gear transmission structure for controlling the brake pad 7 to brake is arranged in the operation box 1, so that the inner steel wire 4 can be driven to move up and down in the steel wire outer rod 3 through manual rotation of the operation box 1, and the inner steel wire 4 can be used as a displacement transmission structure to apply the displacement effect generated by rotation to the brake pad 7 of the trolley, so that the brake pad 7 can be controlled to brake or release the brake through manual rotation, and in actual use, the trolley brake structure has the actual use effect of manually rotating the trolley to brake, and in use, the position of the brake pad does not need to be found by manually rotating the knob, and the trolley brake operation is more convenient, the practicality is stronger, the attention is not diverted, the manual blind operation is performed, the use is more convenient, the structure use effect is better, and the overall structure is simple, and is suitable for implementation and use.

[0035] It is apparent for a person skilled in the art that the present application is not restricted to the details of the above exemplary embodiments, but that it can be implemented in other concrete forms without departing from the spirit or the essential characteristics of the present application. Therefore, the embodiments should be considered as exemplary only, and not limiting, the scope of the present application being defined by the appended claims rather than the above description, and all changes coming within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference signs in the claims should not be construed as limiting the claims concerned.

Claims

1. A manually operated rotary caster brake structure, comprising an operation box (1), characterized in that, Steel wire outer rods (3) are fixedly installed on the upper and lower outer walls of the operation box (1). An inner steel wire (4) is slidably installed inside the steel wire outer rod (3). Ball heads (5) are provided at both the upper and lower ends of the inner steel wire (4). A knob (2) is provided at the center of the outer surface of the operation box (1). A rotating shaft (8) is fixedly installed on the back of the knob (2). A drive gear (9) is installed at the bottom of the rotating shaft (8) and inside the operation box (1). Side rack boxes (10) are meshed on both sides of the drive gear (9). The top end of the inner steel wire (4) is placed inside the side rack box (10). The top end of the inner steel wire (4) is fixedly connected to the side rack box (10).

2. The manual knob-type caster brake structure according to claim 1, characterized in that: The bottom end of the outer steel wire rod (3) is fixedly connected to the caster body (6), and the caster body (6) is provided with brake pads (7).

3. The manual knob-type caster brake structure according to claim 1, characterized in that: The ball head (5) at the bottom of the inner steel wire (4) is inserted into the interior of the caster body (6), and the inner steel wire (4) is embedded in one end of the brake pad (7). The ball head (5) and the brake pad (7) are movably connected.

4. The manual knob-type caster brake structure according to claim 1, characterized in that: The inner steel wire (4) and the ball head (5) adopt an integrated molding structure design.

5. The manual knob-type caster brake structure according to claim 1, characterized in that: The knob (2) has anti-slip textured surfaces on its exterior.

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