Suitcase brake cable mechanism
By designing a travel box brake line mechanism with end parts, the problem of the brake line requiring additional lining board design in the prior art is solved, and a brake line mechanism with simple structure and low cost is realized, reducing parts and reducing production costs.
Patent Information
- Application Number
- CN202422346020.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-25
- Publication Date
- 2025-06-17
- Estimated Expiration
- 2034-09-25
AI Technical Summary
In existing travel box brake systems, the casing of the brake wire requires additional lining plate design to achieve fixation, resulting in increased spare parts and increased costs.
A travel box brake line mechanism including an end piece is designed. The end piece is connected to the hollow rotating shaft through a columnar body and a hollow stud section, providing the wire sleeve insertion and screw fixing function, avoiding the use of the liner plate.
It realizes a simple structure and low cost travel box brake line mechanism, reduces the number of parts, reduces production costs, and provides reliable fixing and screwing operation convenience.
Smart Images
Figure CN222982606U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a luggage accessory, specifically a brake wire mechanism for a suitcase. Background Art
[0002] With the increasing convenience of long-distance movement in society, suitcases have also been widely used. Therefore, improved designs for suitcases have been extensively developed and used, such as the design of the braking system on luggage.
[0003] The braking system in the form of a handbrake operation is a common braking structure on existing suitcases. It uses a brake wire to connect the operating part provided at the top of the luggage and the braking part of the casters. The brake wire includes a steel wire main core and a wire sleeve sleeved outside the steel wire main core. One end of the steel wire main core is connected to the operating part, and the other end of the steel wire main core passes through the hollow rotating shaft of the luggage roller and is then connected to the braking part. The wire sleeve protects the steel wire main core and guides the path. In the luggage handbrake system on the market, one end of the wire sleeve of the brake wire is fixed to the base of the operating part, and the other end of the wire sleeve is directly placed at the opening of the hollow rotating shaft. The end of the wire sleeve has an annular limiting disc with a diameter larger than the opening of the hollow rotating shaft. After the annular limiting disc supports at the opening of the hollow rotating shaft, a lining plate is assembled on the top of the wheel seat of the roller to press the annular limiting disc to achieve limitation. The specially designed lining plate increases the parts of the luggage, thus increasing the cost. Summary of the Invention
[0004] The invention purpose of the utility model: To overcome the defects existing in the prior art, the utility model provides a brake wire mechanism for a suitcase with a simple structure and low cost.
[0005] To achieve the above purpose, the utility model provides the following technical solutions:
[0006] A brake wire mechanism for a suitcase, including an upper fixing seat, a brake wire, and a hollow rotating shaft. The brake wire includes a steel wire main core and a wire sleeve sleeved outside the steel wire main core. Both ends of the steel wire main core pass through the wire sleeve. One end of the wire sleeve is fixed on the upper fixing seat, and the other end of the wire sleeve is provided with an end piece. The feature is that: the end piece includes a columnar main body provided with a socket cavity, one end of the wire sleeve is inserted and fixed in the socket cavity, the columnar main body extends with a hollow stud section, the hollow stud section has a through hole for the steel wire main core to pass through and an external thread, and the upper part of the hollow rotating shaft is provided with an internal thread hole section, and the hollow stud section is screwed into the internal thread hole section.
[0007] Preferably, the outer cylindrical surface of the columnar main body is provided with a tangential plane for holding the columnar main body when screwing the end piece.
[0008] Preferably, the columnar main body has a polygonal outer contour, and several planes circumferentially distributed on the polygonal outer contour form the tangential plane.
[0009] Preferably, a fixing hole groove is provided on the upper fixing seat. The fixing hole groove includes a front hole cavity and a rear groove cavity which are connected in sequence. One end of the front hole cavity is a front limiting surface. A passing hole for the main wire core to pass through is provided on the front limiting surface. A radial avoidance slit is formed through the radial side of the passing hole. The radial avoidance slit extends along the length direction of the passing hole and penetrates the front hole cavity. The radial avoidance slit provides for the radial entry and exit of the main wire core along the passing hole and the front hole cavity. The radial side of the rear groove cavity has an open mouth. The rear groove cavity is connected with a tail section notch. One end of the rear groove cavity connected with the tail section notch has a rear limiting surface. The tail section notch has a sleeve placement opening connected with the open mouth of the rear groove cavity. A wire tube fixing piece is provided at the front end of the wire sleeve. The main wire core passes through the wire tube fixing piece. One end of the wire tube fixing piece is inserted into the front hole cavity along the rear groove cavity, and after the wire tube fixing piece is inserted into the front hole cavity, it is placed in the rear groove cavity. The radial side of the wire tube fixing piece is restricted in the front hole cavity by the wall of the front hole cavity. One end in the length direction of the wire tube fixing piece is in stop cooperation with the front limiting surface, and the other end in the length direction of the wire tube fixing piece is in stop cooperation with the rear limiting surface. The wire sleeve is placed along the sleeve placement opening and positioned in the tail section notch.
[0010] Preferably, a hollow hole is provided on the bottom side corresponding to the passing hole in the front hole cavity.
[0011] By adopting the above technical solution, the end piece cooperating with the hollow rotating shaft is threadedly connected to the hollow rotating shaft. The columnar main body of the end piece provides for the insertion of the wire sleeve, realizing the connection between the end piece and the wire sleeve. At the same time, the columnar main body of the end piece provides a holding part for screwing operation, which can reliably fix the end of the wire sleeve. Moreover, the structure is simple, without the design of an inner lining plate, reducing the number of parts, thereby reducing costs; the design of the tangential cutting plane is convenient for holding the columnar main body, and the polygonal outer contour of the columnar main body provides the possibility of operation in multiple angular directions.
[0012] The following further describes the present invention with reference to the drawings. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a schematic structural diagram of the suitcase brake wire mechanism according to a specific embodiment of the present invention;
[0014] Figure 2 It is a schematic assembly structure diagram of the end piece according to a specific embodiment of the present invention;
[0015] Figure 3 It is a schematic assembly structure diagram of the wire tube fixing piece according to a specific embodiment of the present invention;
[0016] Figure 4 It is a schematic structural diagram of the upper fixing seat according to a specific embodiment of the present invention;
[0017] Figure 5Axial view of the end piece in the specific embodiment of the present utility model;
[0018] Figure 6 Stereogram of the end piece in the specific embodiment of the present utility model;
[0019] Figure 7 Schematic structural view of the end piece in another embodiment of the present utility model. Specific embodiments
[0020] See the attached Figures 1 - 6 As shown, a suitcase brake cable mechanism disclosed by the present utility model includes an upper fixing seat 1, a brake cable 2, and a hollow rotating shaft 3. The brake cable 2 includes a steel wire main core 21 and a wire sleeve 22 sleeved outside the steel wire main core 21. Both ends of the steel wire main core 21 pass through the wire sleeve 22. One end of the wire sleeve 22 is fixed on the upper fixing seat 1 (the part of the upper fixing seat with the wire sleeve fixing structure is shown in the figure). The other end of the wire sleeve 22 is provided with an end piece 23. To make the cooperation between the wire sleeve and the hollow rotating shaft simpler and more reliable, the following optimized design is adopted: the end piece 23 includes a columnar main body 231 provided with a jack cavity 2311. One end of the wire sleeve 22 is inserted and fixed in the jack cavity 2311. The columnar main body 231 extends with a hollow stud section 232. The hollow stud section 232 has a through hole for the steel wire main core 21 to pass through and an external thread. The upper part of the hollow rotating shaft 3 is provided with an internal thread section 31. The hollow stud section 232 is screwed into the internal thread section 31. Fix one end of the wire sleeve 22 and insert it onto the columnar main body of the end piece 23; during assembly, fixedly hold the columnar main body 231, such as holding the columnar main body 231 by hand or operating the columnar main body 231 with the aid of tools, and screw the hollow stud section into the internal thread section of the hollow rotating shaft, so as to fix one end of the wire sleeve to the hollow rotating shaft. Compared with the traditional structural design, the number of parts is reduced and the cost is lowered; the columnar main body of the end piece provides insertion for the wire sleeve to realize the connection between the end piece and the wire sleeve. At the same time, the columnar main body of the end piece provides a holding part for screwing operation, and the structure is simple and compact.
[0021] To more easily hold the columnar main body, a tangent plane 2312 for holding the columnar main body 231 when screwing the end piece 23 is provided on the outer cylindrical surface of the columnar main body 231. As Figure 7 shown, the tangent plane 2312 can be designed as two symmetrical surfaces. To achieve a simpler and more compact design, as Figure 1 , Figure 5 and Figure 6 shown, the columnar main body 231 adopts a polygonal outer contour, and several planes circumferentially distributed on the polygonal outer contour form the tangent plane 2312. Therefore, the columnar main body can adopt a simple circular surface design, or a design with friction patterns, hand-screwing operation, etc.
[0022] In this specific embodiment, the upper fixing seat 1 is provided with a fixing hole groove 11, which includes a front hole cavity 111 and a rear groove cavity 112 connected in sequence, one end of the front hole cavity 111 is a front limiting surface 111a, and the front limiting surface 111a is provided with a through hole 12 for the main core of the steel wire to pass through, and the radial side of the through hole 12 is penetrated to form a radial avoidance slit 121, which extends along the length direction of the through hole and penetrates the front hole cavity 111, and the radial avoidance slit 121 provides a steel wire main core. The wire main core enters and exits radially along the through hole 12 and the front hole cavity 111, and the rear groove cavity 112 has an open opening on the radial side. The rear groove cavity 112 is connected to the tail groove 13. The end of the rear groove cavity 112 connected to the tail groove 13 has a rear limit surface 112a, and the tail groove 13 has a sleeve insertion entrance connected to the open mouth of the rear groove cavity 112. The front end of the wire sleeve 22 is provided with a wire tube fixing part 24, and the steel wire main core 21 passes through the wire tube fixing part 24. The end 24a of the wire tube fixing part 24
[0023] The wire tube fixing part 24 is inserted into the front hole 111 along the rear groove 112, and is placed in the rear groove 112 after being inserted into the front hole 111. The radial side of the wire tube fixing part 24 is limited in the front hole 111 by the wall of the front hole 111, and one end of the wire tube fixing part 24 in the length direction cooperates with the front limit surface 111a stopper, and the other end of the wire tube fixing part 24 in the length direction cooperates with the rear limit surface 112a stopper. The wire sleeve 22 is inserted into and positioned in the tail section slot 13 along the sleeve insertion entrance. The front hole 111 and the rear groove 112 cooperate to realize the lateral limitation of the wire tube fixing part 24, and the front limit surface 111a and the rear limit surface 112a realize the limitation of the length direction of the wire tube fixing part 24. The structure is simple and the wire tube fixing part can be reliably fixed. When installing, the wire tube fixing part 24 is tilted, and the front end of the wire tube fixing part 24 is placed into the rear groove 112 along the open mouth of the rear groove 112, and then the front end of the wire tube fixing part 24 is pushed and inserted into the front hole 111, and then the other end of the wire tube fixing part is also placed into the rear groove, and the wire tube fixing part is straightened. A hollow hole 1111 is provided on the bottom side of the front hole 111 corresponding to the through hole 12, so that the injection molding of the front hole 111 is convenient.
Claims
1. A suitcase brake wire mechanism, comprising an upper fixed seat, a brake wire and a hollow rotating shaft, wherein the brake wire comprises a steel wire main core and a wire sleeve sleeved outside the steel wire main core, both ends of the steel wire main core pass through the wire sleeve, one end of the wire sleeve is fixed on the upper fixed seat, and the other end of the wire sleeve is provided with a terminal piece, characterized in that: The terminal piece includes a columnar body with a socket cavity, one end of the wire sleeve is inserted and fixed in the socket cavity, the columnar body is extended with a hollow stud section, the hollow stud section has a through hole for the main core of the steel wire to pass through and an external thread, the upper part of the hollow rotating shaft is provided with an internal threaded hole section, and the hollow stud section is threadedly screwed into the internal threaded hole section.
2. The suitcase brake line mechanism according to claim 1, characterized in that: The outer cylindrical surface of the columnar body is provided with a chord plane for holding the columnar body when the end piece is screwed.
3. The suitcase brake line mechanism according to claim 2, characterized in that: The columnar body has a polygonal outer contour, and a plurality of planes distributed along the circumferential direction on the polygonal outer contour constitute the chord-tangent plane.
4. The suitcase brake line mechanism according to claim 1, characterized in that: The upper fixing seat is provided with a fixing hole groove, which includes a front hole cavity and a rear groove cavity connected in sequence, one end of the front hole cavity is a front limiting surface, and the front limiting surface is provided with a through hole for the main steel wire core to pass through, and the radial side of the through hole is penetrated to form a radial avoidance slit, and the radial avoidance slit extends along the length direction of the through hole and penetrates the front hole cavity, and the radial avoidance slit provides the main steel wire core with radial entry and exit along the through hole and the front hole cavity, and the radial side of the rear groove cavity has an open mouth, and the rear groove cavity is connected with a tail groove, and the end of the rear groove cavity connected with the tail groove has a rear limiting surface, and the tail groove The opening has a sleeve insertion inlet connected to the open opening of the rear groove cavity, a wire sleeve fixing piece is provided at the front end of the wire sleeve, the main steel wire core passes through the wire sleeve fixing piece, one end of the wire sleeve fixing piece is inserted into the front section hole cavity along the rear groove cavity, and the wire sleeve fixing piece is inserted into the front section hole cavity and then placed in the rear groove cavity, the radial side of the wire sleeve fixing piece is limited in the front section hole cavity by the wall of the front section hole cavity, one end of the wire sleeve fixing piece in the length direction cooperates with the front limit surface stopper, and the other end of the wire sleeve fixing piece in the length direction cooperates with the rear limit surface stopper, and the wire sleeve is inserted along the sleeve insertion inlet and positioned in the tail section slot.
5. The suitcase brake line mechanism according to claim 4, characterized in that: A hollow hole is arranged on the bottom side of the front cavity corresponding to the through hole.