CN208306810U - Spacing anti-theft structure of bicycle seat tube - Google Patents

Abstract

The utility model relates to a bicycle seat tube limiting anti-theft structure, which consists of a frame tube of a frame and a seat tube arranged on the frame tube, wherein a limiting bolt which needs to be disassembled and assembled by using a special tool is arranged on the frame tube, the seat tube comprises an insertion tube and an installation part arranged on the insertion tube, the insertion tube can be selectively inserted into the frame tube insertion hole, the outer periphery of the insertion tube is provided with a limiting groove which axially extends and corresponds to the limiting bolt, the bottom of the limiting groove of the insertion tube is provided with a blocking part for the relative limiting bolt to generate a limiting effect, the seat tube can only be adjusted up and down relative to the frame tube and can not be axially rotated by utilizing the relative relation between the limiting bolt of a quick-disassembly binding piece of the frame tube and the insertion tube limiting groove of the seat tube, so as to avoid the arbitrary looseness in the riding process, the comfort level and the safety of riding are improved, furthermore, the structure of the blocking part in the, the seat tube can be prevented from being taken out randomly without using special tools, the anti-theft function is achieved, and the practicability is greatly improved.

Description

Bicycle saddle tube limits theft-prevention structure

Technical field

The utility model relates to a kind of bicycle saddle tubes to limit theft-prevention structure, be mainly used in bicycle theft-prevention technology neck Domain.

Background technique

Bicycle is no longer simple walking-replacing tool in recent years, more can be used as the tool of recreation & sports, and voluntarily Every part of vehicle develops also more and more diversified and functionalization.Regular Bicycle is before vehicle frame front and rear ends are arranged with one Wheel and a rear-wheel, wherein front-wheel is hubbed at frame tube using vertical tube of front fork, and sets in vertical tube of front fork top through handlebar tube lock There is the handlebar of a horizontal, can be through the direction of handlebar control front-wheel for rider, and vehicle frame middle section is arranged using a frame tube There is a seat pipe with seat cushion, can be sitting on the seat cushion of seat pipe for rider and ride the bicycle.

Existing bicycle saddle tube composed structure as shown in Figure 1, its be set to the upright frame tube 10 in a vehicle frame middle section on, the vehicle 10 top of frame pipe is equipped with the Quick Release bundle 15 that an alternative collects 10 internal diameter of frame tube, and seat pipe 20 has a pluggable vehicle frame Intubation 21 and one inside pipe 10 are set in intubation 21 for the installation part 25 for installing seat cushion, make user fast through this is discharged Bundle 15 is torn open to adjust 20 height of seat pipe or choose.

However, previous designs there is a problem of it is one very big, i.e., thief can without using tool situation under, as long as The Quick Release bundle 15 is manually operated, whole group seat pipe 20 can be taken away together with seat cushion extraction and cause damages, will also result in subsequent ride The puzzlement multiplied, furthermore the intubation 21 of existing seat pipe 20 and frame tube 10 need to constantly rotate seat pipe 20 when adjusting and choosing, and make vehicle The function of tightening of the opposite intubation 21 of frame pipe 10 is gradually lost, and easily causes seat pipe 20 to rotate suddenly during riding, not only Influence the comfort of riding, also there is the misgivings of safety, how to solve the problems, such as this one, need further to be improved.

Utility model content

The technical problem to be solved by the utility model is to provide a kind of bicycle saddle tubes to limit theft-prevention structure, can be real It now can effectively lock, avoid it under the situation without using tool, seat pipe arbitrarily be disassembled, to reach antitheft purpose, simultaneously Seat pipe arbitrarily rotates during it is also avoided that riding, to improve comfort and the safety of riding, overcomes the prior art Deficiency.

In order to solve the above technical problems, the utility model adopts the following technical solution: a kind of bicycle saddle tube limit is antitheft Structure mainly includes a frame tube and a seat pipe；The frame tube, the jack that there is an axis to extend at center, the jack are adjacent Nearly top is formed with a screw hole with a connection jack at profile groove, the frame tube adjacent top end, and frame tube is cutd open in correspondence Quick Release bundle with an alternative change jack internal diameter at slot, the Quick Release bundle are equipped with one and need to be torn open using special tool(s) Dress and caging bolt of the spiral shell through frame tube screw hole；The seat pipe, it includes have an intubation and one be set to intubation on installation part, Middle installation part can be used for group and set a seat cushion, and after the intubation alternative drawing-in Quick Release bundle, be inserted in aforesaid frame pipe jack Interior, intubation outer peripheral edge has the limiting groove of axially extending together and corresponding aforementioned caging bolt, enables the intubation of seat pipe with respect to vehicle Frame pipe gives birth to axial limiting, and be only capable of upper and lower displacement and can not axial-rotation, the limiting groove bottom of the intubation has a stopper, Restriction effect is generated for relative limit bolt.

Preferably, which is set as a c-type beam ring, and c-type beam ring opening both ends are equipped with a pull rod, for inclined using one Heart tommy bar selectively pulls the pull rod, to change the internal diameter of c-type beam ring, and a corresponding frame tube screw hole is formed on c-type beam ring Counterbore, be set in the frame tube screw hole for caging bolt with respect to spiral shell after drawing-in, seat pipe relative frame pipe enabled to generate axial limiting Effect.

Preferably, which can be a solid welding or the cemented convex block in limiting groove bottom.

Preferably, which can be formed at the screw hole of limiting groove and be fixed at a screw institute group of screw hole relatively At.

Preferably, the protruding pin institute which can be formed at the urgent tieholen of limiting groove and be fixedly arranged in urgent tieholen relatively Composition.

The beneficial effects of the utility model are: through the specific implementation of above-mentioned technological means, this creation bicycle saddle tube limit Position theft-prevention structure can make seat pipe using the relativeness of the intubation limiting groove of the Quick Release bundle caging bolt and seat pipe of frame tube It is only capable of relative frame pipe to adjust and can not axially be rotated up and down, is loosened to avoid any during riding, improve relaxing for riding Appropriateness and safety, furthermore the structure of the limiting groove innter blocking part using intubation, can more prevent seat pipe in unused special tool(s) In the state of arbitrarily taken out, and have the effect of antitheft, greatly improve the practicality, to effectively promote its surcharge, Promote its economic benefit.

The utility model is described in further detail with reference to the accompanying drawing.

Detailed description of the invention

Fig. 1 is the side elevational cross-section schematic diagram of prior art bicycle intubation.

Fig. 2 is the side elevational cross-section schematic diagram of the utility model bicycle saddle tube limit theft-prevention structure.

Fig. 3 is the perspective exploded view of the utility model bicycle saddle tube limit theft-prevention structure.

Fig. 4 is the partial exploded view of the utility model bicycle saddle tube limit another embodiment of theft-prevention structure.

Fig. 5 is the partial exploded view of the utility model bicycle saddle tube limit theft-prevention structure 3rd embodiment.

Fig. 6 is the limit adjustment action schematic diagram of the utility model bicycle saddle tube limit theft-prevention structure.

Specific embodiment

As shown in Figures 2 and 3, the bicycle saddle tube of this creation limits theft-prevention structure, mainly by the frame tube of a vehicle frame 50, a seat pipe 60 for being set to frame tube 50 is formed；The wherein jack 51 that there is the frame tube 50 axis to extend, the jack 51 adjacent top ends are formed with one through profile groove 52, change 50 internal diameter of frame tube for matching unification Quick Release bundle 55, to tighten seat pipe 60, And the screw hole 53 with a connection jack 51 at 50 adjacent top end of frame tube, furthermore aforementioned Quick Release bundle 55 has a c-type beam Ring 56, and the opening of c-type beam ring 56 both ends are equipped with a pull rod 57, for pulling the pull rod 57 using eccentric 58 selectivity of tommy bar, with Change the internal diameter of c-type beam ring 56, and then 51 internal diameter of jack of synchronous change frame tube 50, for quickly tightening or discharging seat pipe 60, The counterbore 560 of corresponding 50 screw hole 53 of frame tube is formed on the c-type beam ring 56 of the Quick Release bundle 55, for 59 phase of a caging bolt Spiral shell is set, and 60 relative frame pipe 50 of seat pipe is enabled to generate axial limiting effect.

The seat pipe 60 includes that an intubation 61 and an installation part 65 in intubation 61 are formed, wherein installation part 65 Can be used for group to set a seat cushion [not showing in figure], and after the alternative drawing-in Quick Release bundle 55 of the intubation 61, be inserted in aforesaid frame In the jack 51 of pipe 50,61 outer peripheral edges of intubation have the limit of axially extending together and corresponding 55 caging bolt 59 of Quick Release bundle Groove 62, enable seat pipe 60 intubation 61 can relative frame pipe 50 generate axial limiting, and be only capable of upper and lower displacement, can not rotate, then 62 bottom of limiting groove of person's intubation 61 has a stopper 63), restriction effect is generated for relative limit bolt 59, to avoid seat The intubation 61 of pipe 60 is entirely detached from frame tube 50, and wherein the stopper 63 can be a solid welding or cemented in 62 bottom of limiting groove Convex block 631, as shown in Figure 2.

The stopper 63 is also possible to be formed in the screw hole 621 of limiting groove 62 and the opposite screw for being fixed at screw hole 621 632 form (as shown in Figure 4).In addition, the stopper 63 is also possible to be formed in the urgent tieholen 622 of limiting groove 62 and relatively solid Protruding pin 633 in urgent tieholen 622 forms (as shown in Figure 5)；

One structure of composition can be organized as a result, simply and the bicycle saddle tube limit that can have both limit and anti-theft function is antitheft Structure.

The real use state of this creation when operation, enables the intubation 61 of seat pipe 60 be inserted into frame tube as shown in Figure 2 and Figure 6 In 50 jacks 51, and the screw hole 53 of the corresponding frame tube 50 of the limiting groove 62 of intubation 61 is enabled, and by the c-type beam ring of Quick Release bundle 55 56 upper limit bolt, 59 spiral shell, which is set, to be penetrated in the range of 61 limiting grooves 62 of intubation, makes the intubation 61 of seat pipe 60 can relative frame pipe 50 Axial limiting is generated, and is only capable of upper and lower displacement and will not arbitrarily rotate, user further can not operate Quick Release bundle 55 When eccentric tommy bar 58,60 height of seat pipe can be adjusted up and down, and when depressing eccentric tommy bar 58, c-type beam ring 56 can be enabled through vehicle Frame pipe 50 generates binding force with respect to the intubation of seat pipe 60 61, achievees the purpose that fixed seat pipe 60.

Simultaneously as 62 bottom of limiting groove of the intubation of seat pipe 60 61 has stopper 63, it can be with respect on c-type beam ring 56 Caging bolt 59 generates restriction effect, and can not arbitrarily pull away seat pipe 60, so can be to avoid someone in unused special tool(s) Under, it is simple to take out seat pipe 60 through release Quick Release bundle 55, and achieve the purpose that antitheft.

Through design above-mentioned, this creation bicycle saddle tube, which limits theft-prevention structure, can utilize the Quick Release bundle 55 of frame tube 50 The relativeness of caging bolt 59 and 61 limiting groove 62 of intubation of seat pipe 60, makes seat pipe 60 be only capable of lowering on relative frame pipe 50 It is whole and can not be rotated, avoid it is any during riding loosen, improve the comfort level and safety of riding, furthermore utilize intubation The structure of 61 62 innter blocking part 63 of limiting groove can more prevent seat pipe 60 from arbitrarily being taken in the state that special tool(s) is not used Out, have the effect of antitheft, greatly improve the practicality.

Claims (5)

1. It mainly include a frame tube and a seat pipe 1. a kind of bicycle saddle tube limits theft-prevention structure；It is characterized by: the vehicle frame Pipe, the jack that there is an axis to extend at center, the jack adjacent top end are formed with one through profile groove, the frame tube adjacent top end Locate the screw hole with a connection jack, frame tube is at corresponding profile groove with an alternative Quick Release beam for changing jack internal diameter Part, which is equipped with one need to be using special tool(s) dismounting and caging bolt of the spiral shell through frame tube screw hole；The seat pipe, It include an intubation and one is set to installation part in intubation, wherein installation part can be used for group and set a seat cushion, and the intubation may be selected Property drawing-in Quick Release bundle after, be inserted in aforesaid frame pipe jack, intubation outer peripheral edge have together it is axially extending and correspondence it is aforementioned The limiting groove of caging bolt enables the raw axial limiting of the intubation relative frame pipe of seat pipe, and be only capable of upper and lower displacement and can not be axial The limiting groove bottom of rotation, the intubation has a stopper, generates restriction effect for relative limit bolt.
2. 2. bicycle saddle tube as described in claim 1 limits theft-prevention structure, it is characterised in that: the Quick Release bundle is set as a c-type Beam ring, and c-type beam ring opening both ends are equipped with a pull rod, for selectively pulling the pull rod using an eccentric tommy bar, to change c-type beam The internal diameter of ring, and the counterbore of a corresponding frame tube screw hole is formed on c-type beam ring, being set to for caging bolt with respect to spiral shell after drawing-in should In frame tube screw hole, seat pipe relative frame pipe is enabled to generate axial limiting effect.
3. 3. bicycle saddle tube as described in claim 1 limits theft-prevention structure, it is characterised in that: the stopper can be a solid welding or The cemented convex block in limiting groove bottom.
4. 4. bicycle saddle tube as described in claim 1 limits theft-prevention structure, it is characterised in that: the stopper can be formed at limit The screw hole of position groove and the opposite screw for being fixed at screw hole are formed.
5. 5. bicycle saddle tube as claimed in claim 4 limits theft-prevention structure, it is characterised in that: the stopper can be formed at limit The urgent tieholen of position groove and the opposite protruding pin being fixedly arranged in urgent tieholen are formed.