Driving mechanism of trunk braking device

Abstract

The utility model relates to the field of braking, in particular to a driving mechanism of a trunk braking device. Comprising a shell, a sliding knob is connected into the shell in a sliding mode, and the sliding knob drives a brake cable to move through a transmission assembly. The sliding knob comprises a sliding shell, the sliding shell is connected with the shell in a sliding mode, a button is connected into the sliding shell in a sliding mode, and a spring bolt is further connected into the sliding shell in a sliding mode. A second spring is arranged between the spring bolt and the inner wall of the sliding shell, the second spring is fixedly connected with the spring bolt and the inner wall of the sliding shell, and a notch matched with the spring bolt in shape is formed in the inner side wall of the shell. An inclined sliding opening is formed in the middle of the spring bolt and right faces the button, and an inclined sliding face is arranged at the bottom of the button. According to the utility model, the button, the spring bolt, the second spring and the notch are matched, so that the purpose of locking or unlocking the brake is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the brake field, specifically drive mechanism of luggage case brake device. BACKGROUND

[0002] The luggage case on the installation trundle brake device has become the standard configuration of high -end luggage case, and it generally is through the brake shoe that is installed by brake cable on the trundle to rub the trundle axle or wheel hub to realize the brake, and the brake cable drive assembly designed on the luggage case body is the brake cable.

[0003] The brake cable drive assembly on the market has many forms, such as the invention patent no. CN202010411650.0 discloses a luggage case brake device, and the brake cable drive assembly thereof is very complex and bulky.

[0004] The utility model patent no. CN202120370311.2 provides a brake cable drive device that can be kicked open quickly, and the unlocking and locking operation of the device is not high in reliability, and there is a certain degree of possibility of not being able to lock / unlock.

[0005] Therefore, in order to overcome the above technical problems, the utility model provides a new luggage case brake cable drive assembly, and in combination with the existing brake mechanism, the quick brake and unlocking of the luggage case trundle are realized. UTILITY MODEL CONTENTS

[0006] The utility model provides the following technical scheme:

[0007] The drive mechanism of the luggage case brake device provided by the utility model comprises a shell, a brake traction piece installed in a sliding groove of the shell and freely movable along the sliding groove, at least one brake cable installation position of the brake traction piece, a sliding button arranged in parallel with the brake traction piece in the shell, a transmission assembly arranged between the sliding button and the brake traction piece, the sliding button being reversibly driven by the transmission assembly to tension or loosen the brake cable, a lock tongue protruding in a natural state being further arranged in the sliding button, and a slot into which the lock tongue is inserted being arranged on the path of the sliding button in the shell.

[0008] A plurality of brake cables are connected in the brake traction piece, a plurality of cavities are arranged in the brake traction piece, and each cavity is connected with a group of brake cables connected with a trundle brake mechanism.

[0009] The brake cable end is sleeved with a first spring, one end of the first spring abuts against the inner wall of the chamber of the brake traction member, and the other end is connected with the brake cable end, the first spring is in a compressed state no matter where the brake traction member moves in the sliding groove, so that the lock tongue is retracted, the first spring drives the brake traction member to move, and the sliding knob is reset.

[0010] Beneficial effects: through the clamping of the lock tongue and the notch, the sliding knob is locked, and the positions of the brake traction member, the brake cable and the brake pad are locked, thereby achieving the purpose of locking the brake. When the operator presses the button, the lock tongue completely slides away from the notch, that is, the brake is unlocked, and then the sliding knob is automatically reset through the first spring. Through the above steps, the brake can be locked in the unmanned state, so that the brake can be maintained in the braking state in the parking state, and the brake can be quickly unlocked and reset in the unbraking state. BRIEF DESCRIPTION OF DRAWINGS

[0011] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiment description. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor, wherein:

[0012] Figure 1 is the appearance view of the present application;

[0013] Figure 2 is the internal structure schematic view of the present application;

[0014] Figure 3 is the side sectional view of the present application;

[0015] Figure 4 is the local sectional view of the present application;

[0016] Figure 5 is the sectional view of the present application;

[0017] Figure 6 is the local sectional view of the present application; Figure 5

[0018] In the drawing: 1, housing; 2, brake cable; 21, cable sleeve; 22, limiting ball; 3, brake traction member; 31, first spring; 4, sliding knob; 41, sliding shell; 42, button; 421, sliding groove; 422, inclined sliding surface; 43, lock tongue; 431, inclined sliding notch; 44, second spring; 45, notch; 46, limiting pin; 5, transmission assembly; 51, driving rack; 52, transmission rack; 53, gear. DETAILED DESCRIPTION​

[0019] The following will be combined with the accompanying 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.

[0020] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or components referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention; the terms "first", "second", and "third" are only used for descriptive purposes and should not be understood as indicating or implying relative importance; in addition, unless otherwise expressly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, an indirect connection through an intermediate medium, or it can be internal communication between two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0021] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of this application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments. In response to the problems existing in the prior art, the following solutions are proposed:

[0022] Example 1, as Figures 1-3 As shown, the drive mechanism of the luggage case brake device includes a housing 1 having a sliding groove formed therein, within which a slide button 4 is slidably mounted. A brake traction member 3 is also slidably mounted within the housing 1. The brake traction member 3 is internally divided into several chambers, each of which is connected to a set of brake cables 2. A transmission assembly 5 is connected to the slide button 4 and the brake traction member 3. The slide button 4 drives the brake traction member 3 and the brake cables 2 through the transmission assembly 5.

[0023] The transmission assembly 5 includes an active rack 51, a transmission rack 52 and a gear 53. The sliding button 4 includes an external sliding shell 41. The sliding shell 41 is fixedly connected to the active rack 51. The transmission rack 52 is fixedly connected to the brake traction member 3. The gear 53 is rotatably connected to the housing 1. The gear 53 is engaged with the active rack 51, and the gear 53 is engaged with the transmission rack 52.

[0024] When the operator slides the slider 4, the active rack 51 rotates the gear 53, which in turn moves the transmission rack 52, which in turn moves the brake traction member 3 in the opposite direction of the movement of the slider 4. When the operator manipulates the slider 4 to retract the brake cable 2 toward the housing 1, the cable 2 pulls the brake pad, pressing it tightly against the wheel rim, generating friction and thereby slowing or stopping the wheel. Sliding the slider 4 to perform braking is simple, convenient, and can be operated with one hand.

[0025] Example 2, as Figure 4 As shown, a locking tongue 43 is slidably connected to the sliding housing 41. The sliding trajectory of the locking tongue 43 is perpendicular to the sliding trajectory of the sliding housing 41. A second spring 44 is provided between the locking tongue 43 and the inner wall of the sliding housing 41. The second spring 44 is fixedly connected to the locking tongue 43 and the inner wall of the sliding housing 41. A notch 45 is formed on the inner side wall of the sliding groove of the housing 1, which is in the same shape as the locking tongue 43. When the brake traction member 3 moves to the deepest part of the housing 1, the locking tongue 43 faces the notch 45.

[0026] When the operator slides the slide button 4 so that the lock tongue 43 is facing the notch 45, the No. 2 spring 44 will push the lock tongue 43 to move outward, that is, push the lock tongue 43 to move toward the notch 45. At this time, the lock tongue 43 just slides into the notch 45. Due to the engagement of the lock tongue 43 and the notch 45, the slide button 4 cannot continue to slide. The slide button 4 is locked, and then the position of the brake traction member 3, the brake cable 2 and the brake pad is locked, thereby achieving the purpose of locking the brake.

[0027] Example 3, as Figure 4 As shown, the lock tongue 43 has an oblique sliding opening 431 in the middle, facing the button 42. The button 42 has an oblique sliding surface 422 at its bottom, parallel to and in contact with the oblique sliding surface 422. A limit pin 46 is fixedly mounted within the sliding housing 41, and a sliding groove 421 is formed on the button 42, which is slidably connected to the limit pin 46. The limit pin 46 not only limits the movement of the button 42, preventing it from sliding linearly, but also prevents it from sliding excessively and detaching from the housing 1.

[0028] When the operator finishes the locking action of the slide button 4, the button 42 is pressed, the button 42 moves downward, the button 42 pushes the lock tongue 43 to slide away from the slot 45 through the oblique sliding port 431 and the sliding of the oblique sliding surface 422, and when the lock tongue 43 completely slides away from the slot 45, the unlocking action is completed, so that the slide button 4 can be continuously pushed to control the brake.

[0029] As shown in the fourth embodiment, Figure 2 A group of first springs 31 are arranged in each single chamber of the brake traction member 3, the first springs 31 are sleeved outside the brake cable 2, the brake cable 2 is connected with a limiting ball 22 at the end, and the limiting ball 22 has a diameter larger than that of the first spring 31.

[0030] When the slide button 4 drives the brake traction member 3 to slide through the transmission assembly 5, the two ends of the first spring 31 are in contact with the limiting ball 22 and the inner side wall of the brake traction member 3 respectively, the first spring 31 is contracted, the first spring 31 pulls the brake cable 2 into the housing 1 through the limiting ball 22, so as to pull the brake pad to brake. The flexible connection between the brake traction member 3 and the brake cable 2 is realized through the first spring 31, so that the damage of the brake traction member 3 caused by the reaction force of the brake pad to the brake cable 2 in the direct hard connection is avoided.

[0031] When the button 42 is pressed to release the brake state, the lock tongue 43 slides out of the slot 45, the first spring 31 drives the brake traction member 3 to move towards the connection between the cable sleeve 21 and the housing 1, then the traction member 3 drives the slide button 4 to move through the transmission assembly 5, and the slide button 4 is automatically reset. The automatic rebound reset of the slide button 4 after unlocking is realized through the first spring 31.

[0032] As shown in the fifth embodiment, Figure 1 The cable sleeve 21 is arranged at one end of the brake cable 2 outside the housing 1. The cable sleeve 21 can isolate the brake cable 2 from the outside, so as to avoid the collision and friction with the surrounding parts during the operation of the brake cable 2 and cause damage.

[0033] The basic principle, main features and advantages of the utility model are shown and described. It should be understood by those skilled in the art that the utility model is not limited by the above embodiments, and the above embodiments and the description in the specification only illustrate the principle of the utility model, and various changes and improvements can be made to the utility model without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model claimed. The protection scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A driving mechanism of a luggage case brake device, comprising a housing (1), a brake traction member (3) installed in a sliding groove of the housing (1) and freely movable along the sliding groove, the brake traction member being provided with at least one brake cable (2) installation position, characterized in that: The shell (1) is further provided with a sliding button (4) arranged in parallel with the brake traction member (3), a transmission assembly (5) is arranged between the sliding button (4) and the brake traction member (3), the sliding of the sliding button (4) can reversely drive the brake traction member (3) to tighten or loosen the brake cable (2) through the transmission assembly (5), the sliding button (4) is further provided with a locking tongue (43) which extends in a natural state, the shell (1) is provided with a slot (45) into which the locking tongue (43) is inserted along the moving path of the sliding button (4); after the sliding button (4) is slid until the locking tongue (43) extends into the slot (45), the position of the sliding button (4) is locked and the brake traction member (3) simultaneously tightens the brake cable (2), the sliding button (4) is further provided with a button (42), after the button (42) is pressed, the locking tongue (43) is retracted to restore the free state of the sliding button (4). ​ 2. The drive mechanism of the luggage braking apparatus according to claim 1, wherein: The brake traction member (3) is connected with a plurality of brake cables (2); the brake traction member (3) is provided with a plurality of cavities, each cavity is connected with a group of brake cables (2) connected with the caster brake mechanism.

3. A drive mechanism for a luggage braking apparatus according to claim 2, wherein: The brake cable (2) is sleeved with a spring (31) at the end, one end of the spring (31) abuts against the inner wall of the cavity of the brake traction member (3), and the other end is connected with the end of the brake cable (2), no matter where the brake traction member (3) moves in the sliding groove, the spring (31) is in a compressed state, so that after the locking tongue (43) is retracted, the spring (31) drives the brake traction member (3) to move and further resets the sliding button (4).

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