CN218431520U - Improved structure of shock absorbing seat tube - Google Patents

Abstract

The utility model relates to an improved structure of a shock absorbing seat tube, which mainly comprises a seat tube, an inner tube, a lifting component and a buffer component; the inner tube is provided with a first screw hole, the buffer component is provided with a first sleeve seat, a second sleeve seat and a buffer component, the first sleeve seat is selectively arranged on the seat tube or the inner tube, the second sleeve seat is fixed on the lifting component, the buffer component is fixed between the first sleeve seat and the second sleeve seat, a screw rod screwed in the first screw hole is arranged above the first fixing part, and the buffer component is extruded or released by adjusting the upper position and the lower position of the screw rod in the first screw hole, so that the buffer and shock absorption effects of the buffer component are adjusted; the invented shock absorbing seat tube not only provides good shock absorbing effect and can adjust different shock absorbing effect according to the requirement, but also can achieve the effect of convenient part replacement and maintaining good air tightness.

Description

Improved structure of shock absorbing seat tube

Technical Field

The utility model relates to an improvement structure of a shock absorbing seat tube, which is mainly applied to the shock absorbing technical field of bicycles, motorcycles and the like.

Background

At present, a bicycle is a commonly used vehicle, the bicycle is treaded by manpower as a power source, electric power or gasoline is not needed, the bicycle is extremely environment-friendly, and the bicycle is very suitable for being used as a common vehicle or a leisure sports device.

In order to solve the problem, a general bicycle is mostly provided with a shock absorbing device to absorb shock force, so that a user can feel comfortable when riding the bicycle when the user encounters a rugged and uneven road or travels on a stone road or a road with a fall terrain.

The shock absorbing device is usually installed on the handlebar, front fork, rear fork and seat tube under the seat cushion of the bicycle, and as far as the present shock absorbing seat tube is concerned, it includes an inner tube, an outer tube and a buffer unit; a bottom cushion at the top end of the inner tube; the inner pipe is sleeved on the outer pipe, and the bottom end of the outer pipe is connected with the vehicle body; the buffer unit penetrates through the outer pipe, and two ends of the buffer unit respectively abut against the inner pipe and the outer pipe to provide buffer force for the inner pipe; however, the conventional structure configuration mainly uses a pneumatic or hydraulic structure as the buffer unit, which not only increases the complexity of the structure, but also has the problem of difficult maintenance, so the practicability of the prior art is not ideal and needs to be further improved.

For example, taiwan patent publication No. M523651, the patent name "shock absorbing seat tube for bicycle" includes an outer tube, an inner tube passing through the outer tube, a seat tube lifting assembly disposed in the outer tube and connected to the inner tube, and a buffer unit disposed in the inner tube, wherein the buffer unit has a first socket, a second socket, and a buffer body, the first socket is selectively screwed to the inner tube or the outer tube and has two first half seat bodies butted with each other, the second socket is screwed to the seat tube lifting assembly and has two second half seat bodies butted with each other, the top end of the buffer body is disposed between the two first half seat bodies of the first socket, the bottom end of the buffer body is disposed between the two second half seat bodies of the second socket, and the buffer body is used for buffering shock absorbing effect; the first socket top end is provided with a first hexagon socket, a rider can clamp the first hexagon socket of the first socket by using a hand tool (such as a screwdriver) to rotate the first socket, so that the first socket extrudes or releases the buffer body through the screw connection relation with the seat cushion fixing seat in the rotation process, and the buffering and shock-absorbing effect provided by the buffer body can be further adjusted; however, the first socket is screwed into the first screw hole of the seat fixing base through the first screw, and the first socket is easy to disengage from the first screw hole due to the absence of the limiting structure during the rotation of the first socket, so that the buffer body cannot be positioned reliably, and the buffer effect is lost, which leaves a need for further improvement.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical problem that will solve is: the present invention provides an improved structure of shock absorbing seat tube, and more particularly, to an improved structure of shock absorbing seat tube which has good and adjustable shock absorbing effect according to the requirement, and is more comfortable for the user when riding the bicycle, and has simple structure and convenient maintenance, and overcomes the disadvantages of the prior art.

In order to solve the technical problem, the utility model adopts the following technical scheme: an improved structure of shock absorbing seat tube mainly comprises a seat tube, an inner tube, a lifting component and a buffer component; the seat tube is a hollow tube body; the inner pipe is provided with a pipe fitting and a joint positioned at the top end of the pipe fitting, the pipe fitting can be axially arranged at the top end of the seat pipe in a penetrating way in a displacement way, and the pipe fitting is provided with a first screw hole; the lifting component is arranged in the seat tube and connected to the inner tube; the buffer component is provided with a first sleeve seat and a second sleeve seat, wherein the first sleeve seat is provided with a first fixing part, a first connecting part, at least one fixing rod and a screw rod, the first fixing part is selectively arranged at the bottom end of the seat tube or the top end of the inner tube, the first fixing part is provided with a long slot hole extending towards the connection direction of the first sleeve seat and the second sleeve seat, the at least one fixing rod selectively penetrates through the bottom end of the seat tube or the top end of the inner tube and extends into the long slot hole to fix the first sleeve seat, the screw rod is positioned above the first fixing part and is screwed in the first screw hole, the first connecting part is connected to the top end of the buffer component, the second sleeve seat is provided with a second fixing part and a second connecting part, the second fixing part can be fixed on the lifting component, the second connecting part is connected to the bottom end of the buffer component, and the buffer component is fixed between the first sleeve seat and the second sleeve seat.

Preferably, the inner side surface of the first connecting portion is provided with a first caulking groove, the inner side surface of the second connecting portion is provided with a second caulking groove, the buffer assembly is a buffer structure body made of buffer materials, the top end of the buffer structure body is provided with a first caulking portion, the first caulking portion is clamped between the first caulking grooves, the bottom end of the buffer structure body is provided with a second caulking portion, and the second caulking portion is clamped between the second caulking grooves.

Preferably, the buffering component is a spring, the first connecting portion has a first cylinder and a first fixing member that can extend into the spring, the first cylinder has a first through hole for passing through the first fixing member, the first fixing member is located in one of the gaps at the top end of the spring, the second connecting portion has a second cylinder and a second fixing member that can extend into the spring, the second cylinder has a second through hole for passing through the second fixing member, and the second fixing member is located in one of the gaps at the bottom end of the spring.

Preferably, the first and second through holes are further provided with a plurality of internal threads, and the first and second fixing pieces are externally provided with a plurality of external threads.

Preferably, the first connecting portion is a one-piece structure, or the second connecting portion is a one-piece structure.

Preferably, the first connecting portion is formed by assembling at least two structural bodies to each other, or the second connecting portion is formed by assembling at least two structural bodies to each other.

Preferably, the lifting assembly has a second screw hole, and the second fixing portion is configured as a screw rod structure for being screwed into the second screw hole.

Preferably, the bottom end of the seat tube or the top end of the inner tube has at least one third screw hole, and the fixing rod is configured as a screw rod structure for being screwed into the third screw hole.

Preferably, this lifting unit has a disk seat and a valve rod, and the top of this disk seat is fixed in the bottom of this inner tube, and the bottom of this disk seat is located this seat intraductal, but this disk seat is worn to locate by axial displacement on the top of this valve rod, and the bottom of this seat pipe is located to the bottom of this valve rod, and the top of this inner tube is located to this first cover seat, and the top of this disk seat is located to this second cover seat.

Preferably, this lifting unit has a disk seat and a valve rod, and the bottom mounting of this disk seat is in the bottom of this inner tube, and the top of this disk seat is located this inner tube, but this disk seat is worn to locate by the bottom axial displacement of this valve rod, and the top of this inner tube is located to the top of this valve rod, and the bottom of this seat pipe is located to this first cover seat, and the bottom of this disk seat is located to this second cover seat.

The utility model has the advantages that: through the demonstration of the above technical means, the shock absorbing seat tube not only provides good shock absorbing effect and can adjust different shock absorbing effects according to requirements, but also can achieve the effects of convenient part replacement and good air tightness maintenance.

The present invention will be described in further detail with reference to the accompanying drawings.

Drawings

FIG. 1 is a perspective view of the improved structure of the shock absorbing seat tube of the present invention.

FIG. 2 is a sectional view of the shock absorbing seat tube according to the first embodiment of the present invention.

FIG. 3 is an exploded view of the first embodiment of the improved shock tube.

FIG. 4 is an enlarged sectional view of a portion of the first embodiment of the improved shock absorbing seat tube.

FIG. 5 is an exploded view of a second embodiment of the improved shock tube.

FIG. 6 is a sectional view of the second embodiment of the shock absorbing seat tube.

FIG. 7 is a sectional view of the shock absorbing seat tube according to the third embodiment of the present invention.

FIG. 8 is a sectional view of the fourth embodiment of the shock absorbing seat tube.

Detailed Description

As shown in FIG. 1 and FIG. 2, the shock absorbing seat tube of the present invention at least comprises: a seat tube 10, an inner tube 20, a lifting assembly 30, and a cushioning assembly 40.

The seat tube 10 is a hollow tube, and the bottom end of the seat tube 10 is fixed to a frame (not shown); the inner tube 20 has a tube 21 and a joint 22 at the top end of the tube 21, the bottom end of the tube 21 penetrates the seat tube 10 from the top end of the seat tube 10 and can move axially up and down relative to the seat tube 10, and the tube 21 has a first screw hole 23.

The lifting assembly 30 has a valve seat 31 and a valve stem 32. In this embodiment, the top end of the valve seat 31 is fixed to the bottom end of the inner tube 20 and has a second screw hole 33, and the bottom end of the valve seat 31 is located in the seat tube 10; the top end of the valve rod 32 is disposed in the valve seat 31, and the bottom end of the valve rod 32 is disposed at the bottom end of the seat tube 10 and abuts against a trigger rod 12. When the valve rod 32 is pushed upward by the trigger rod 12, the oil passage communication condition in the valve seat 31 is opened, so that the inner tube 20 can ascend or descend relative to the seat tube 10, and when the pushing force applied to the valve rod 32 is released, the oil passage communication condition in the valve seat 31 is closed, so that the inner tube 20 is positioned.

The cushion assembly 40 is disposed in the inner tube 20 for providing cushioning effect. Referring to fig. 3 and 4, the cushion assembly 40 has a first sleeve seat 41, a second sleeve seat 42 and a cushion assembly, wherein: the first socket 41 has a first fixing portion 411, a first connecting portion 412, at least one fixing rod 413 and a screw 414, the first fixing portion 411 has a long slot 415 extending toward the connection direction of the first and second sockets 41, 42, a fixing rod 413 passes through the through hole 24 preset at the top end of the inner tube 20 and extends into the long slot 415 to fix the first socket 41, the screw 414 is located above the first fixing portion 411 and screwed into the first screw hole 23, the top end of the screw 414 has an inner hexagonal hole 416, the inner side surface of the first connecting portion 412 has a first caulking groove 417; in the first embodiment of the present invention, the first fixing portion 411 and the first connecting portion 412 are an integral structure.

The second socket 42 has a second fixing portion 421 and a second connecting portion 422, the second fixing portion 421 is configured as a screw structure, the second socket 42 can be screwed into the second screw hole 33 of the valve seat 31 of the lifting assembly 30 through the second fixing portion 421, the second connecting portion 422 is an integral structure, and the inner side surface of the second connecting portion 422 has a second caulking groove 423; in the first embodiment of the present invention, the second fixing portion 421 and the second connecting portion 422 are an integral structure.

In the first embodiment of the present disclosure, the buffer assembly is a buffer structure 43 made of a buffer material, the top end of the buffer structure 43 has a first embedding portion 431, the first embedding portion 431 is clamped between the first embedding slots 417 of the first socket 41, the bottom end of the buffer structure 43 has a second embedding portion 432, the second embedding portion 432 is clamped between the second embedding slots 423 of the second socket 42, so that the buffer structure 43 is fixed between the first and second sockets 41, 42. Furthermore, the first and second connecting portions 412, 422 may further have at least one cut groove 44, in the embodiment shown in the figure, the cut groove 44 starts from the free end of the first and second connecting portions 412, 422 respectively, extends towards the first and second fixing portions 411, 412 without contacting with them, and extends towards two outer sides to form a T shape, the cut groove 44 can break the stress of the first and second connecting portions 412, 422, which is beneficial to allow the first and second embedding portions 431, 432 to be clamped in the first and second embedding grooves 417, 423, shortening the assembling time and increasing the assembling convenience.

The buffering assembly 40 provided by the present invention utilizes a clamping manner to assemble the buffering assembly 43 with the upper and lower first and second sockets 41, 42, and then the upper and lower first and second sockets 41, 42 are assembled with the inner tube 20 and the lifting assembly 30 by screwing respectively, so compared with the traditional pneumatic and hydraulic manner, the present invention is simpler in structure, relatively easier in assembly, and more convenient in maintenance to replace damaged parts. The screw 414 is disposed above the first fixing portion 411, so that the screw 414 is not separated from the first screw hole 23 due to the limitation of the first fixing portion 411 below during the rotation process of the screw 414, thereby maintaining the cushioning effect; in addition, the top end of the screw 414 has a hexagonal socket 416, and the rider can use a hand tool (such as a screwdriver) to engage the hexagonal socket 416 of the screw 414 to rotate the screw 414, so that the screw 414 changes its screwing relationship with the tube 21 during the rotation, and the fixing rod 413 changes its up-and-down position in the slot 415.

In addition, as shown in fig. 5 and 6, the inner tube 20 has at least one third screw hole 25, and in the embodiment shown in the figures, the inner tube 20 has two third screw holes 25 opposite to each other, and two fixing rods 413 configured as screw structures are further provided, and the two fixing rods 413 are respectively screwed into the third screw holes 25, so as to fix the first socket 41 to the tube 20.

In the first and second embodiments, the damping element can be replaced by a spring, and the arrangement can achieve the same effect as the embodiments. As shown in fig. 7, the damping member is a spring 430, the first connecting portion 412 has a first column 418 and a first fixing member 419 capable of extending into the spring 430, the first column 418 has a first through hole 4181 for passing through the first fixing member 419, the first fixing member 419 is located in one of the gaps at the top end of the spring 430 to connect and fix the first connecting portion 412 to the top end of the spring 430, the second connecting portion 422 has a second column 424 and a second fixing member 425 capable of extending into the spring 430, the second column 424 has a second through hole 4241 for passing through the second fixing member 425, and the second fixing member 425 is located in one of the gaps at the bottom end of the spring 430 to connect and fix the second connecting portion 422 to the bottom end of the spring 430, the first and second fixing members 419 and 425 are fixed to the first and second through holes 4181 and 4241 by using the first and second fixing members 419 and 425, the spring 430 can be stably located in the first and second sockets 41 and 42, and the outer diameter between the first and second fixing members 418 is larger than that of the spring 430, and the damping member 421 and the damping plate body 45 can be pressed against the lower plate body, so as to ensure that the damping member 45 can be pressed between the damping member and the damping plate body 430; of course, the first and second through holes 4181 and 4241 are further provided with a plurality of internal threads therein, and the first and second fixing members 419 and 425 are externally provided with a plurality of external threads, and are screwed and fixed by screwing.

Furthermore, as shown in fig. 8, the buffering component in the second embodiment is mainly replaced by a spring 430, and the structures of the first and second connecting portions 412 and 422 are the same as those of the third embodiment, and such an arrangement mode can achieve the same effects as those of the previous embodiments.

In the first to fourth embodiments, the first connecting portion may be formed by assembling at least two structural bodies, or the second connecting portion may be formed by assembling at least two structural bodies, and such an arrangement may achieve the same effect as the foregoing embodiments.

It should be noted that the lifting assembly 30 and the buffering assembly 40 in the above embodiments can also be installed in a flip-chip manner. Wherein, the bottom mounting of disk seat is in the bottom of inner tube, and the top of disk seat is located the inner tube, but the disk seat is worn to locate to the bottom axial displacement of valve rod, and the top of valve rod is located and is connected and the butt in the trigger lever, and the bottom of seat pipe is located through first fixed part to first cover seat, and the second screw of disk seat is located through second fixed part spiral shell to the second cover seat, and buffering subassembly is located in the seat pipe. Such an installation can also achieve the same effects as those of the foregoing embodiment.

Claims (10)

1. An improved structure of shock absorbing seat tube, which mainly comprises a seat tube, an inner tube, a lifting component and a buffer component; the method is characterized in that: the seat tube is a hollow tube body; the inner pipe is provided with a pipe fitting and a joint positioned at the top end of the pipe fitting, the pipe fitting can be axially arranged at the top end of the seat pipe in a penetrating way, and the pipe fitting is provided with a first screw hole; the lifting component is arranged in the seat tube and connected to the inner tube; the buffer component is provided with a first sleeve seat and a second sleeve seat, wherein the first sleeve seat is provided with a first fixing part, a first connecting part, at least one fixing rod and a screw rod, the first fixing part is selectively arranged at the bottom end of the seat tube or the top end of the inner tube, the first fixing part is provided with a long slotted hole extending towards the online direction of the first sleeve seat and the second sleeve seat, the at least one fixing rod selectively penetrates through the bottom end of the seat tube or the top end of the inner tube and extends into the long slotted hole to fix the first sleeve seat, the screw rod is positioned above the first fixing part and is screwed in the first screw hole, the first connecting part is connected to the top end of the buffer component, the second sleeve seat is provided with a second fixing part and a second connecting part, the second fixing part can be fixed on the lifting component, and the second connecting part is connected to the bottom end of the buffer component, so that the buffer component is fixed between the first sleeve seat and the second sleeve seat.

2. The improved structure of a shock absorbing seat tube as set forth in claim 1, wherein: the inner side surface of the first connecting portion is provided with a first caulking groove, the inner side surface of the second connecting portion is provided with a second caulking groove, the buffering component is a buffering structure body made of buffering materials, the top end of the buffering structure body is provided with a first caulking portion, the first caulking portion is connected between the first caulking grooves in a clamped mode, the bottom end of the buffering structure body is provided with a second caulking portion, and the second caulking portion is connected between the second caulking grooves in a clamped mode.

3. The improved structure of a shock absorbing seat tube as set forth in claim 1, wherein: the buffering assembly is a spring, the first connecting portion is provided with a first cylinder and a first fixing piece, the first cylinder can stretch into the spring, the first cylinder is provided with a first through hole for penetrating the first fixing piece, the first fixing piece is located in one gap at the top end of the spring, the second connecting portion is provided with a second cylinder and a second fixing piece, the second cylinder is provided with a second through hole for penetrating the second fixing piece, and the second fixing piece is located in one gap at the bottom end of the spring.

4. The improved structure of a shock absorbing seat tube as set forth in claim 3, wherein: the first and second through holes are further provided with a plurality of internal threads, and the first and second fixing pieces are externally provided with a plurality of external threads.

5. The improved structure of a shock absorbing seat tube as set forth in claim 3, wherein: the first connecting part is an integrated structure body, or the second connecting part is an integrated structure body.

6. The improved structure of a shock absorbing seat tube as set forth in claim 1, wherein: the first connecting portion is formed by assembling at least two structural bodies, or the second connecting portion is formed by assembling at least two structural bodies.

7. The improved structure of a shock absorbing seat tube as set forth in claim 1, wherein: the lifting component is provided with a second screw hole, and the second fixing part is configured as a screw rod structure body and can be screwed in the second screw hole.

8. The improved structure of a shock absorbing seat tube as set forth in claim 1, wherein: the bottom end of the seat tube or the top end of the inner tube is provided with at least one third screw hole, and the fixed rod is configured into a screw rod structure body and can be screwed in the third screw hole.

9. The improved structure of a shock absorbing seat tube as set forth in claim 1, wherein: this lifting unit has a disk seat and a valve rod, and the top of this disk seat is fixed in the bottom of this inner tube, and the bottom of this disk seat is located this seat intraductal, but this disk seat is worn to locate on the top of this valve rod axial displacement ground, and the bottom of this seat pipe is located to the bottom of this valve rod, and the top of this inner tube is located to this first cover seat, and the top of this disk seat is located to this second cover seat.

10. The improved structure of a shock absorbing seat tube as set forth in claim 1, wherein: this lifting unit has a disk seat and a valve rod, and the bottom mounting of this disk seat is in the bottom of this inner tube, and the top of this disk seat is located this inner tube, but this disk seat is worn to locate to the bottom axial displacement ground of this valve rod, and the top of this inner tube is located on the top of this valve rod, and the bottom of this seat pipe is located to this first cover seat, and the bottom of this disk seat is located to this second cover seat.

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