CN217477441U

CN217477441U - Limiting device of telescopic seat cushion rod

Info

Publication number: CN217477441U
Application number: CN202221499075.5U
Authority: CN
Inventors: 陈木村
Original assignee: Giant Manufacturing Co Ltd
Current assignee: Giant Manufacturing Co Ltd
Priority date: 2022-04-15
Filing date: 2022-06-15
Publication date: 2022-09-23
Anticipated expiration: 2032-06-15
Also published as: JP3238792U; TWM630407U

Abstract

The utility model provides a stop device of flexible seatpad pole, for installing in a seat pipe for fixed a seatpad base that is set up in a seat pipe inner tube, the utility model discloses contain a saddle, a locking element and at least one spacing portion, the saddle has a wear to establish the hole that supplies the seat pipe to pass and transversely runs through to a locking hole of wearing to establish the hole, the saddle sees through to wear to establish the hole and embolias the seat pipe and is set up, the locking element lock is gone into the locking hole and is penetrated to establish the hole and support towards the seat pipe and press and fix the saddle, at least one spacing portion forms in an upper surface of saddle, and at least one spacing portion has a spacing recess that matches the seatpad base appearance respectively, when the seat pipe inner tube stretched into the seat pipe and the seatpad base is blocked when in at least one spacing recess, can obviously reach the purpose that promotes flexible seatpad pole stability.

Description

Limiting device of telescopic seat cushion rod

Technical Field

The present invention relates to a limiting device for a cushion rod of a retractable seat, and more particularly to a limiting device for improving the stability of a cushion rod of a retractable seat.

Background

The bicycle is an environment-friendly and green energy-saving travel tool, and public bicycles scattered everywhere are arranged in cities can supplement the deficiency of the last road required by mass transportation wheel operation. In order to meet the riding requirements of users with different statures, the public bicycle needs to be capable of simply and quickly adjusting the setting height of the seat cushion, the common seat cushion is arranged on the frame for the telescopic seat cushion rod capable of being adjusted in a lifting way, the length of the telescopic seat cushion rod can be adjusted, and the setting height of the seat cushion is further changed.

In the conventional structure of a retractable seat post, such as the disclosure of taiwan patent No. 201615476, an anti-rotation post and a manufacturing method thereof and a rotation limiting structure of a bicycle seat applied thereto are disclosed, wherein at least one through hole is formed at a predetermined position of a core rod, and an anti-rotation post having a non-circular peripheral contour is formed on the core rod, so that an anti-rotation post structure capable of limiting rotation of the bicycle seat is obtained.

For example, taiwan patent publication No. M443553 discloses a seat adjusting mechanism for sports equipment, which mainly comprises a seat tube, a seat rod, an elastic member and a positioning member, wherein the seat tube is square, the seat rod is inserted into the seat tube to limit rotation, and the positioning member is pushed by the elastic member to penetrate through one positioning hole of the seat rod and the seat tube; and the control element is pulled by the flexible element to separate the positioning element from the inserted positioning hole, thereby achieving the purpose of adjusting the seat cushion unit to the proper height.

For example, taiwan patent publication No. M342324 discloses an adjustable bicycle seat tube structure, which mainly utilizes an adjustment mode of pneumatic and hydraulic control to change the height of a seat to meet the statures of different riders, and can guide a relative member to perform stable radial displacement of a ground wire, thereby reducing the wear of the member caused by deflection during lifting adjustment.

The above-mentioned technologies disclose various structures for adjusting the height of the seat cushion, but the technologies focus on preventing the seat cushion from being reversed, swaying, etc. when the height of the seat cushion is adjusted, and do not consider that the user has a special requirement for reversing the seat cushion.

Therefore, as disclosed in taiwan patent No. M565154, a "reversible telescopic cushion rod" is disclosed, in which the first tube and the second tube, as telescopic tubes, have limited sliding strokes that cannot rotate relative to the bicycle frame and free moving strokes that can rotate relative to the bicycle frame at different relative positions, and in cooperation with the design of the pull rod and the connecting rod, a user does not need to loosen the bundle of the quick release cushion, and can reverse the cushion by pulling up the pull rod and moving the first tube to the free moving strokes, so as to facilitate the single-hand operation and meet the requirements in use.

However, in such a design, since the seat cushion can only be reversed when the first tube and the second tube are located at the opposite specific positions, the local area where the first tube and the second tube are in contact with each other is easily worn away after long-term use, and the seat cushion may shake or become unstable, which may cause discomfort and safety in riding.

SUMMERY OF THE UTILITY MODEL

The main objective of the present invention is to provide a limiting device for a retractable seat cushion rod, which can be used to assist in fixing a seat cushion base at the correct position and increasing the stability.

In order to achieve the above object, the present invention provides a limiting device for a retractable seat cushion rod, which is installed on a seat tube and used to fix a seat cushion base, the seat cushion base is installed on an inner tube of the seat tube, the seat cushion base includes a saddle, a locking element and at least one limiting portion, wherein the saddle has a through hole and a locking hole, the through hole is used for the seat tube to pass through, the locking hole transversely runs through to the through hole, and the saddle is sleeved in the seat tube through the through hole and is set. The locking element is locked into the locking hole and penetrates through the through hole and is pressed against the seat tube to fix the saddle. The at least one limiting part is formed on the upper surface of the saddle, the at least one limiting part is respectively provided with a limiting groove, the limiting grooves are matched with the appearance of the seat cushion base, and when the seat tube inner tube extends into the inner space of the seat tube and reaches a preset position, the seat cushion base can be clamped in the at least one limiting groove.

In one embodiment of the present invention, the saddle is disposed at a predetermined position of the seat tube and is disposed adjacent to a seat tube bundle.

In one embodiment of the present invention, the saddle is located above the seat tube bundle.

In an embodiment of the present invention, when the seat base is close to the saddle, the seat base is engaged with any one of the at least one limiting groove.

In an embodiment of the present invention, the seat base has a pull rod, and the at least one limiting groove has an outer shape matching the pull rod, so that the pull rod can be clamped into any one of the at least one limiting groove.

In an embodiment of the present invention, each of the limiting grooves has two convex portions arranged side by side and a concave portion located between the two convex portions.

In an embodiment of the present invention, each of the two convex portions has an inclined surface on a side away from the concave portion, and each of the two convex portions has a cliff surface on a side close to the concave portion.

In one embodiment of the present invention, the saddle has a groove communicating with the inner edge of the through hole, and the saddle has two face-to-face end portions on one side of the groove, and the two end portions are locked by a locking element to be close to each other.

In an embodiment of the present invention, the at least one position-limiting portion is one and is disposed away from the groove.

In an embodiment of the present invention, the at least one position-limiting portion is integrally formed on the upper surface of the saddle.

In an embodiment of the present invention, the at least one position-limiting portion is disposed at a position of the groove.

In an embodiment of the present invention, the limiting portion is divided into two parts by the split groove and disposed on the upper surface of the saddle along the two end portions, and extends outward along the upper surface near the two end portions to form two convex portions, and the two convex portions are closed together to form a concave portion at the two end portions by the locking of the locking element.

In an embodiment of the present invention, the at least one position-limiting portion is plural and disposed on the upper surface of the saddle.

In an embodiment of the present invention, the at least one position-limiting portion is two, and the two position-limiting portions are disposed on two opposite sides of the upper surface of the saddle.

In an embodiment of the present invention, the limiting portion is disposed at the position of the split groove, the limiting portion is divided into two parts by the split groove and disposed on the upper surface of the saddle along the two end portions, and extends outward along the upper surface near the two end portions to form two convex portions, and the two convex portions are closed to each other at the two end portions by the locking of the locking element to form a concave portion.

In one embodiment of the present invention, the saddle has a belly ring surface adjacent to the seat tube bundle, the belly ring surface having a shape similar to an outer ring surface of the seat tube bundle.

To sum up, the utility model discloses a characteristics lie in, see through the setting of an at least spacing recess, can let the seatpad base by the holding in an at least spacing recess, and then increase stability, because of the saddle can be changed alone for independent component, the holistic maintenance cost of flexible seatpad pole can be reduced to the event.

Drawings

Fig. 1 is a schematic perspective view of a spacing device according to the present invention;

FIG. 2 is a schematic view of the installation and use of the present invention;

FIG. 3 is a partially exploded view of the present invention;

FIG. 4 is a schematic sectional view of the installation of the present invention;

fig. 5 is a schematic view illustrating installation and use of another embodiment of the present invention;

fig. 6 is a schematic structural diagram of another embodiment of the present invention.

Detailed Description

The detailed description and technical contents of the present invention will now be described with reference to the accompanying drawings as follows:

please refer to fig. 1, fig. 2, fig. 3, fig. 4, and fig. 5, and descriptions of various embodiments. As shown in fig. 1 to 4, the present invention relates to a limiting device for a retractable seat post (e.g., for a bicycle), which can be separately installed at a predetermined position of a seat tube 10 for fixing a seat base 30 including a seat tube inner tube 40 and a seat cushion base supported on the top of the seat tube inner tube 40.

As shown in fig. 5, the limiting device of the present invention can also be disposed adjacent to a seat tube bundle 20, for example, disposed on the seat tube bundle 20, and the two can be matched with each other and respectively fixed at the predetermined positions of the seat tube 10, wherein the seat tube bundle 20 can prevent the seat tube inner tube 40 and the seat cushion base 30 from being separated from the seat tube 10, and has both safety and anti-theft functions. The seat tube 10 may be a portion of a bicycle frame (not shown), and the seat base 30 is used to position and support a seat cushion (not shown) for a user to ride.

Referring to fig. 1 and 4, the limiting device of the present invention includes a saddle 50, a locking element 60 and at least one limiting portion 70, wherein the saddle 50 has a through hole 51 and a locking hole 52, the through hole 51 is for the seat tube 10 to pass through, the locking hole 52 transversely passes through the through hole 51, so that the saddle 50 is set by inserting the seat tube 10 through the through hole 51, in one embodiment, the saddle 50 is set at a predetermined position of the seat tube 10, and then the locking element 60 is locked into the locking hole 52, penetrates through the through hole 51, and is pressed against the seat tube 10 to fix the saddle 50. Referring to FIG. 5, in another embodiment, the saddle 50 and the seat tube bundle 20 are disposed adjacent to each other, and preferably the saddle 50 is located at a position above the seat tube bundle 20 and is fixed to the seat tube bundle 20.

As shown in fig. 4 (the pull rod connecting rod 31 shown in fig. 2 is cut away), the seat tube 10 may have a predetermined local recess (e.g., a positioning groove) at a specific position on the surface, and when the locking member 60 is locked to the seat tube 10 through the locking hole 52, the locking member 60 continuously presses against the positioning groove to tightly press the saddle 50 and the seat tube 10 together, so that the saddle 50 is fixed to the surface of the seat tube 10.

Referring to fig. 1, the saddle 50 may further have a groove 53, the groove 53 makes one side of the saddle 50 present a gap and communicates with the inner edge side of the through hole 51, the saddle 50 has two end portions 54 facing each other at the groove 53, and the two end portions 54 are locked by a locking element 80 to close each other, so that the saddle 50 contacts with the surface of the seat tube 10 and presents a fastening state, and with this design, the through hole 51 has a larger tolerance, and is suitable for the seat tube 10 with slight deformation.

Referring to fig. 3, the saddle 50 includes at least one position-limiting portion 70, preferably integrally formed on an upper surface 55 of the saddle 50, and the at least one position-limiting portion 70 has a position-limiting groove 71, and the position-limiting groove 71 is used to match the shape of the seat cushion base 30, wherein the seat cushion inner tube 40 is inserted into the inner space of the seat tube 10, and when the seat cushion inner tube 40 is continuously shortened (i.e. extended into the seat tube 10) to make the seat cushion base 30 present a state close to the saddle 50, the seat cushion base 30 is adaptively engaged with any one of the at least one position-limiting groove 71, so as to achieve the purpose that the seat cushion inner tube 40 is kept in an engaged state without swinging or rotating, thereby the mechanism can integrally improve the riding stability of the retractable seat cushion rod. In a preferred embodiment, the at least one position-limiting portion 70 is one and is disposed at a suitable position relatively far away from the groove 53.

To facilitate the adjustment of the seat height by the rider, the seat base 30 may have a pull link 31, and at least one limiting groove 71 having a shape matching the pull link 31, as shown in fig. 2, the pull link 31 may be engaged with the limiting groove 71 to be restricted from rotating. In one possible embodiment, as shown in fig. 1, each of the limiting grooves 71 further has two protrusions 711 and a recess 712, the two protrusions 711 are arranged side by side, and the recess 712 is located between the two protrusions 711. As shown in fig. 2, the pull link 31 may be further engaged and fixed in the recess 712.

In addition, for convenience of operation, as shown in fig. 1, the two protrusions 711 each have an inclined surface 713 on a side (e.g., outer side) relatively far from the recess 712, and the two protrusions 711 each have a cliff surface 714 on a side (e.g., inner side) relatively near the recess 712. In a preferred embodiment, the angle of inclination of the bevel 713 is between about 30 and 60 degrees, and the angle of inclination of the cliff face 714 is about 90 degrees (e.g., vertical), as provided by the bevel 713, when the pull link 31 slides on the upper surface 55, and on the side of the protrusion 711 having the inclined surface 713, the pull rod link 31 can be guided and slid along the inclined plane 713 to correspondingly rise, so that the pull rod link 31 gradually passes over the top end of the convex part 711, the pull rod link 31 is prevented from passing over the shoulder surface 714 and is maintained in a state of being fixed to the recess 712 by the design that the pull rod link falls into the recess 712 after passing over the shoulder surface 714 and the shoulder surface 714 is a vertical surface, the pull rod 31 of the seat base 30 is received in the recess 712 of the at least one position-limiting groove 71, so as to improve the stability of the seat base, and the pull rod 31 can be properly clamped to avoid the swinging and swaying problems.

Referring to fig. 5, the saddle 50 may further have a belly ring surface 56, and the shape of the belly ring surface 56 is smooth, so that when the saddle 50 is used with the seat tube bundle 20, an outer ring surface 21 of the seat tube bundle 20 may be designed to be the same as or similar to the belly ring surface 56 of the saddle 50, and the same or similar shape is provided to make the whole body have a streamline appearance.

Please refer to fig. 6, which is a schematic structural diagram of another embodiment of the present invention, in the present embodiment, at least one limiting portion 70 may be disposed in a plurality and disposed at suitable positions on the upper surface 55 of the saddle 50. As shown in fig. 6, two position-limiting portions 70 are disposed on the upper surface 55 of the saddle 50, and their positions can be flexibly set according to the requirement, for example, correspondingly disposed on two sides opposite to each other, so as to meet various requirements in use.

In another embodiment (not shown), at least one of the limiting portions 70 is one and is disposed at the position of the groove 53 (see fig. 3), the limiting portion 70 is divided into two parts by the groove 53 and is disposed on the upper surface 55 of the saddle 50 along the two end surfaces 54, and extends outward along the upper surface 55 near the two end surfaces 54 to form two protrusions 711, the protrusions 711 of the limiting portion 70 are locked together by the locking element 80 at the two end surfaces 54 by matching with the notch of the groove 53, and a recess 712 can be formed to accommodate the pull rod link 31 (for example, in fig. 6, a recess 712 (not shown in fig. 6) is formed by the two protrusions 711 of the groove (not shown in fig. 6) at the side of the locking element 80). In another embodiment, two protrusions 711 may be disposed on the groove 53 and the side relatively far from the groove 53 to form the recess 712. Thus, regardless of whether the seat cushion base 30 is in the reverse rotation state, i.e., regardless of whether the pull link 31 is in different operating states such as forward or backward, the seat cushion base 30 can be stably fixed by being engaged with any one of the plurality of corresponding stoppers 70 (shown in fig. 6).

To sum up, the utility model has the following characteristics:

firstly, through the arrangement of at least one limiting groove, the seat cushion base can be held in the at least one limiting groove, so that the stability is improved, and the problem that the seat cushion arranged at the top of the seat cushion base is rocked is avoided.

Secondly, the saddle can be used as a buffer and can be replaced independently, and the cost during maintenance can be reduced.

And thirdly, the saddle is provided with a groove design, so that the saddle is suitable for the surface of a seat tube which can slightly deform, and the trouble of overlarge tolerance during replacement or maintenance is reduced.

And fourthly, the design with a plurality of limiting parts is provided, so that the seat cushion base can be clamped in different limiting parts when the seat cushion base is not in a reverse rotation state or a reverse rotation state, and the seat cushion arranged on the seat cushion base cannot shake.

Claims

1. The utility model provides a stop device of flexible seatpad pole, is installed in a seat pipe to be used for the fixed seatpad base that is set up in a seat pipe inner tube, its characterized in that includes:

the saddle is provided with a through hole for the seat pipe to pass through and a locking hole transversely penetrating to the through hole, and the saddle is sleeved in the seat pipe through the through hole;

a locking element locked into the locking hole and penetrating into the through hole and abutting against the seat tube to fix the saddle; and

the saddle comprises a saddle body, at least one limiting part and at least one seat tube, wherein the saddle body is provided with a seat tube inner tube, the seat tube inner tube is arranged in the seat tube inner tube, and the seat tube inner tube is arranged in the seat tube inner tube and is provided with a limiting groove matched with the shape of the seat cushion base.

2. The retainer of claim 1, wherein the saddle is disposed at a predetermined location on the seat tube and is disposed immediately adjacent to a seat tube bundle.

3. The retainer of claim 2, wherein the saddle is positioned above the seat tube bundle.

4. The restraining device of claim 1, wherein the seat base is engaged with any one of the at least one restraining groove when the seat base is proximate to the saddle.

5. The restraint device according to claim 1, wherein the seat base has a pull link and the at least one restraint groove is shaped to match the pull link for the pull link to be snapped into any one of the at least one restraint groove.

6. The retainer device according to claim 5, wherein each of the retainer grooves has two protrusions juxtaposed with one another and a recess between the two protrusions.

7. The retainer of claim 6, wherein the two protrusions each have a bevel on a side thereof opposite to the recess and each protrusion has a cliff surface on a side thereof opposite to the recess.

8. The retainer device according to claim 1, wherein the saddle has a groove communicating with the inner edge side of the through hole, and the saddle has two end surface portions facing each other at one side of the groove, the two end surface portions being locked to be close to each other by a locking member.

9. The spacing device of claim 8, wherein said at least one spacing portion is one and located away from said cut-out.

10. The restraining device of any one of claims 1-9, wherein the at least one restraining portion is integrally formed on the upper surface of the saddle.

11. The position-limiting device as claimed in claim 8, wherein the at least one position-limiting portion is one and is disposed at a position where the groove is formed.

12. The retainer device as claimed in claim 11, wherein the retainer is divided into two parts by the split groove and is disposed on the upper surface of the saddle along the two end portions, and extends outward along the upper surface near the two end portions to form two protrusions, and the two protrusions are locked by the locking member at the two end portions to close each other to form a recess.

13. The retainer device according to any one of claims 1 to 8, wherein the at least one retainer portion is plural and is disposed on the upper surface of the saddle.

14. The retainer device of claim 8, wherein the at least one retainer portion is two and the two retainer portions are disposed on opposite sides of the upper surface of the saddle.

15. The restraining device according to claim 14, wherein one of the restraining portions is disposed at the position of the groove, the restraining portion is divided into two parts by the groove and disposed on the upper surface of the saddle along the two end portions, and extends outward along the upper surface near the two end portions to form two convex portions, and the two convex portions are locked by the locking element at the two end portions to close each other to form a concave portion.

16. A spacing device as claimed in any one of claims 2 to 3 wherein said saddle has a ventral annulus adjacent said seat tube bundle, said ventral annulus having a profile similar to an outer annular surface of said seat tube bundle.