阅读说明：本技术 一种滑板车折叠机构及其折叠方法 (Scooter folding mechanism and folding method thereof ) 是由 董雨乐 吴中超 于 2021-10-08 设计创作，主要内容包括：本发明涉及一种滑板车折叠机构及其折叠方法,包括底板,底板上安装有支撑座,支撑座上转动安装有连接管；左右贯穿连接管底端与支撑座相接处安装有转轴,转轴与连接管之间安装有锁止机构,转轴由端部的扳手带动以自身轴向为圆心转动,转轴的转动解锁锁止机构对连接管的锁止,连接管在自身重力下向着底板的方向转动；本发明经转轴的转动实现锁止机构对连接管的锁止或是解锁,使得解锁后的连接管在自身重力作用下实现折叠,结构巧妙新颖,稳定性高,并且折叠后的连接管在锁止机构的复位作用下将重新被锁止,大大提升了使用安全性,方便可靠。(The invention relates to a scooter folding mechanism and a folding method thereof, comprising a bottom plate, wherein a supporting seat is arranged on the bottom plate, and a connecting pipe is rotatably arranged on the supporting seat; a rotating shaft is arranged at the joint of the bottom end of the left and right through connecting pipes and the supporting seat, a locking mechanism is arranged between the rotating shaft and the connecting pipes, the rotating shaft is driven by a spanner at the end part to rotate by taking the self-axial direction as a circle center, the locking mechanism is unlocked by the rotation of the rotating shaft to lock the connecting pipes, and the connecting pipes rotate towards the direction of the bottom plate under the self-gravity; the invention realizes the locking or unlocking of the connecting pipe by the locking mechanism through the rotation of the rotating shaft, so that the unlocked connecting pipe is folded under the action of the gravity of the connecting pipe, the structure is ingenious and novel, the stability is high, and the folded connecting pipe is locked again under the reset action of the locking mechanism, thereby greatly improving the use safety, and being convenient and reliable.)

1. The utility model provides a scooter folding mechanism which characterized in that: the device comprises a bottom plate (4), wherein a supporting seat (6) is arranged on the bottom plate (4), and a connecting pipe (1) is rotatably arranged on the supporting seat (6); run through connecting pipe (1) bottom and supporting seat (6) department of meeting and install pivot (70) about, install locking mechanism between pivot (70) and connecting pipe (1), pivot (70) are driven by spanner (2) of tip and are used self axial to rotate as the centre of a circle, and the locking of rotation unblock locking mechanism to connecting pipe (1) of pivot (70), and connecting pipe (1) rotates towards the direction of bottom plate (4) under self gravity.

2. The folding mechanism for a scooter as claimed in claim 1, wherein: install the elasticity piece that resets between pivot (70) and connecting pipe (1), the elasticity piece that resets rotates and deforms along with the dead weight of connecting pipe (1), and the elasticity of deformation resets and orders about pivot (70) antiport, drives locking mechanism and resumes the locking to connecting pipe (1).

3. The folding mechanism for a scooter as claimed in claim 1, wherein: two supporting seats (6) on the bottom plate (4) are arranged at intervals along the left-right direction, the bottom end of each supporting seat (6) extends to form a rotary cylinder seat (11) which is horizontal in the axial direction, and the opposite side surfaces of the two supporting seats (6) are connected with the two ends of the rotary cylinder seat (11) in a rotating mode; the rotating shaft (70) axially penetrates through the supporting seat (6) and the rotary drum seat (11), and the locking mechanism is located inside the rotary drum seat (11).

4. The folding mechanism for a scooter as claimed in claim 1 or 3, wherein: the locking mechanism comprises a fixed block (72) fixedly sleeved on the rotating shaft (70), a sliding block (73) is sleeved on the rotating shaft (70) positioned outside the side surface of the fixed block (72), the sliding block (73) and the side surface opposite to the fixed block (72) are mutually clamped through a clamping part, and the sliding block (73) is clamped with the side surface of the bottom end of the connecting pipe (1); the fixed block (72) rotates along with the rotating shaft (70), the sliding block (73) is pushed to move outwards along the axial direction of the rotating shaft (70) through the clamping part, and the sliding block (73) is separated from the connecting pipe (1).

5. The folding mechanism for a scooter as claimed in claim 4, wherein: the fixed block (72) is of an end face cam structure, and an inclined guide part (721) is arranged on the end face of the fixed block facing the sliding block (73); the end face of the sliding block (73) is provided with a guide clamping part (731), and the inclined guide part (721) and the guide clamping part (731) are matched to form a clamping part between the fixed block (72) and the sliding block (73).

6. The folding mechanism for a scooter as claimed in claim 4, wherein: a plurality of ribs (732) are arranged on the outer wall surface of the sliding block (73) along the circumferential direction, and clamping grooves (12) which correspond to the ribs (732) one by one are formed in the side surface of the bottom end of the connecting pipe (1).

7. The folding mechanism for a scooter as claimed in claim 4, wherein: a sliding seat (75) is concentrically arranged on the rotating shaft (70) positioned on the side surface of the outward moving direction of the sliding block (73), the sliding seat (75) is fixedly arranged with the supporting seat (6), and the sliding seat (75) is provided with an inner cavity matched with the circumferential shape of the sliding block (73); the sliding block (73) moves outwards and is accommodated in the inner cavity of the sliding seat (75).

8. The folding mechanism for a scooter as claimed in claim 7, wherein: the sliding block (73) moves towards the fixed block (72) under the pressure of the compression spring (74).

9. The folding mechanism for a scooter as claimed in claim 3, wherein: pivot (70) end lock is equipped with spanner (2), and spanner (2) are located corresponding supporting seat (6) side outside, install anti-disengaging mechanism (5) between spanner (2) and supporting seat (6), and anti-disengaging mechanism (5) are spanner (2) for supporting seat (6) locking or unblock.

10. The folding method of a folding mechanism of a scooter as claimed in claim 8, wherein: an elastic reset piece is arranged between the rotating shaft (70) and the connecting pipe (1), and the method comprises the following steps:

the force is applied to the wrench (2), the rotating shaft (70) is driven to rotate through the wrench (2), the rotating shaft (70) drives the fixing block (72) to synchronously rotate, the fixing block (72) applies axial outward thrust to the sliding block (73) through the clamping part while rotating, the sliding block (73) moves outwards and is separated from the connecting pipe (1), so that the connecting pipe (1) which is arranged in a backward tilting mode swings backwards in the direction of the bottom plate (4) under the action of self gravity, at the moment, the pressure spring (74) is pressed to deform, and the elastic resetting piece between the connecting pipe (1) and the rotating shaft (70) deforms;

the force applied to the wrench (2) is released, the rotating shaft (70) rotates reversely under the deformation force of the elastic resetting piece, and the rotating shaft (70) resets relative to the connecting pipe (1);

the sliding block (73) moves towards the fixed block (72) under the action of the deformation pressure of the pressure spring (74) until the sliding block (73) is clamped with the clamping part between the fixed block (72) again, at the moment, the sliding block (73) is clamped with the connecting pipe (1) again, and folding is completed.

Technical Field

The invention relates to the technical field of scooters, in particular to a scooter folding mechanism and a scooter folding method.

Background

The scooter is a novel tool for riding instead of walk, and is popular with the users due to portability and light weight. Although the existing scooter is portable and can be folded to realize portability, the folding mode of the scooter still has a plurality of defects.

When the existing scooter is folded, the whole scooter body needs to be folded after being laid down, and the use is very inconvenient; in addition, the existing scooter can not be folded under the action of self weight, force is generally applied to the handle part, folding operation is carried out through the force application, and the scooter is not suitable for the rhythm of competing for seconds to come in and go out of public transportation.

On the other hand, current scooter adopts connecting rod or lockpin mechanism to realize on beta structure usually, and the part quantity that this mechanism relates to is numerous, and its accumulative tolerance leads to having great clearance under folding and the expansion two states, transmits to scooter handle end clearance and further is enlargied, causes the in-process handlebar that traveles to rock, and customer experience feels relatively poor.

Disclosure of Invention

The applicant provides a scooter folding mechanism rational in infrastructure and folding method to shortcoming among the above-mentioned prior art to the applicant to behind unblock locking mechanical system, the connecting pipe can be folded under the dead weight effect, has promoted convenient to use nature greatly, has promoted the customer and has experienced the sense, and the security is high.

The technical scheme adopted by the invention is as follows:

a folding mechanism of a scooter comprises a bottom plate, wherein a supporting seat is arranged on the bottom plate, and a connecting pipe is rotatably arranged on the supporting seat; the pivot is installed to the department of meeting of running through connecting pipe bottom and supporting seat about, installs locking mechanism between pivot and the connecting pipe, and the pivot is driven by the spanner of tip and is used self axial to rotate as the centre of a circle, and the rotation unblock locking mechanism of pivot is to the locking of connecting pipe, and the connecting pipe rotates towards the direction of bottom plate under self gravity.

As a further improvement of the above technical solution:

install the elasticity piece that resets between pivot and the connecting pipe, the elasticity piece that resets rotates and deforms along with the dead weight of connecting pipe, and the elasticity of deformation resets and orders about pivot antiport, drives locking mechanism and resumes the locking to the connecting pipe.

Two supporting seats on the bottom plate are arranged at intervals along the left-right direction, the bottom end of each supporting seat is provided with a rotary drum seat which is horizontal in the axial direction in an extending mode, and the opposite side faces of the two supporting seats are connected with the two ends of the rotary drum seat in a rotating mode; the rotating shaft axially penetrates through the supporting seat and the rotary drum seat, and the locking mechanism is located inside the rotary drum seat.

The locking mechanism comprises a fixed block fixedly sleeved on the rotating shaft, a sliding block is sleeved on the rotating shaft outside the side face of the fixed block, the side face of the sliding block opposite to the fixed block is clamped with the side face of the bottom end of the connecting pipe through a clamping part, and the sliding block is clamped with the side face of the bottom end of the connecting pipe; the fixed block rotates along with the rotating shaft, the sliding block is pushed to move outwards along the axial direction of the rotating shaft through the clamping part, and the sliding block is separated from the connecting pipe.

The fixed block is of an end face cam structure, and an inclined guide part is arranged on the end face, facing the sliding block, of the fixed block; the end face of the sliding block is provided with a guide clamping part, and the inclined guide part and the guide clamping part are matched to form a clamping part between the fixed block and the sliding block.

A plurality of convex edges are arranged on the outer wall surface of the sliding block along the circumferential direction, and clamping grooves corresponding to the convex edges one to one are formed in the side surface of the bottom end of the connecting pipe.

A sliding seat is concentrically arranged on the rotating shaft positioned on the side surface of the outward moving direction of the sliding block, the sliding seat is fixedly arranged with the supporting seat, and the sliding seat is provided with an inner cavity matched with the circumferential appearance of the sliding block; the sliding block moves outwards and is accommodated in the inner cavity of the sliding seat.

The sliding block moves towards the fixed block under the pressure of the pressure spring.

The spanner is installed to pivot end lock, and the spanner is located the supporting seat side outside that corresponds, installs anti-disengaging mechanism between spanner and the supporting seat, and anti-disengaging mechanism locks or unblock the spanner for the supporting seat.

The folding method of the folding mechanism of the scooter, wherein an elastic reset piece is arranged between the rotating shaft and the connecting pipe, comprises the following steps:

the force is applied to the wrench, the rotating shaft is driven by the wrench to rotate, the fixed block is driven by the rotating shaft to synchronously rotate, the fixed block applies axial outward thrust to the sliding block through the clamping part while rotating, the sliding block moves outwards and is separated from the connecting pipe, so that the connecting pipe which is arranged in a backward tilting mode swings backwards in the direction of the bottom plate under the action of self gravity, at the moment, the pressure spring is pressed to deform, and the elastic resetting piece between the connecting pipe and the rotating shaft deforms;

the force applied to the wrench is relieved, the rotating shaft rotates reversely under the deformation force of the elastic resetting piece, and the rotating shaft resets relative to the connecting pipe;

the sliding block moves towards the direction of the fixed block under the action of the deformation pressure of the pressure spring until the clamping part between the sliding block and the fixed block is clamped again, and at the moment, the sliding block and the connecting pipe are clamped again to finish folding.

The invention has the following beneficial effects:

the folding device is compact and reasonable in structure and convenient to operate, the locking or unlocking of the connecting pipe by the locking mechanism is realized through the rotation of the rotating shaft, so that the unlocked connecting pipe is folded under the action of self gravity, the structure is ingenious and novel, the stability is high, the carrying is convenient, and the use experience of a customer is greatly improved; the folded connecting pipe is locked again under the reset action of the locking mechanism, so that the use safety is greatly improved, and the use is convenient and reliable;

the invention also comprises the following advantages:

the connecting pipe is folded under the dead weight after being unlocked, the rotating shaft resets relative to the folded connecting pipe under the action of the elastic resetting piece, and then the locking mechanism resets relative to the rotating shaft, so that the connecting pipe is automatically locked again through the locking mechanism, and the folding connecting pipe is convenient to carry smoothly after being folded;

the connecting pipe of fold condition, through spanner application of force in the pivot with the connecting pipe unblock, and upwards the application of force makes it upwards rotate for the supporting seat towards the direction of expansion in the connecting pipe, at this in-process, the pivot rotates along with the upwards rotation of connecting pipe under the elasticity piece effect that resets, when the connecting pipe rotates to predetermineeing the expansion angle, the connecting pipe is by the locking mechanism locking that is in the same in resetting, thereby effectively prevented before the spanner by the locking the dead weight after the connecting pipe stands up free hypsokinesis, user's safety in utilization has greatly been guaranteed.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a partially enlarged view of a portion a in fig. 1.

Fig. 3 is an exploded view of the present invention.

Fig. 4 is a schematic structural diagram of the locking mechanism of the present invention.

FIG. 5 is a schematic view of the installation of the fixing block, the sliding block and the sliding seat in the locking mechanism of the present invention.

FIG. 6 is a schematic structural diagram of the connecting tube of the present invention.

FIG. 7 is a schematic structural view of the anti-separation mechanism of the wrench of the present invention.

Wherein: 1. a connecting pipe; 2. a wrench; 3. a decorative cover; 4. a base plate; 5. an anti-drop mechanism; 6. a supporting seat;

11. a rotary drum seat; 12. a card slot; 21. an inverted portion;

51. a small torsion spring; 52. locking; 53. a pin shaft; 521. buckling;

61. a bayonet;

70. a rotating shaft; 71. a main torsion spring; 72. a fixed block; 73. a slider; 74. a pressure spring; 75. a sliding seat; 76. fastening a bolt; 721. an inclined guide part; 731. a guide engaging portion; 732. a rib; 751. a chute.

Detailed Description

The following describes embodiments of the present invention with reference to the drawings.

As shown in fig. 1, fig. 2, fig. 3 and fig. 4, the folding mechanism of the scooter of the present embodiment includes a bottom plate 4, a supporting seat 6 is installed on the bottom plate 4, and a connecting pipe 1 is rotatably installed on the supporting seat 6; the rotating shaft 70 is installed at the joint of the bottom end of the left penetrating connecting pipe 1 and the supporting seat 6, the locking mechanism is installed between the rotating shaft 70 and the connecting pipe 1, the rotating shaft 70 is driven by the wrench 2 at the end to rotate by taking the self axial direction as the circle center, the rotating shaft 70 is unlocked and locked by the locking mechanism to the connecting pipe 1, the connecting pipe 1 rotates towards the direction of the bottom plate 4 under the self gravity, and the folding is realized under the action of the self gravity.

Install the elasticity piece that resets between pivot 70 and the connecting pipe 1, the elasticity piece that resets rotates along with the dead weight of connecting pipe 1 and deforms, and the elasticity piece that resets of deformation orders about pivot 70 antiport, drives locking mechanism and resumes the locking to connecting pipe 1.

Folding under the dead weight behind the unblock of connecting pipe 1, pivoted pivot 70 then resets in relative folding connecting pipe 1 under the elasticity piece effect that resets, and then the helping hand resets for pivot 70 in locking mechanism to realize automatic locking again through locking mechanism with connecting pipe 1, conveniently do benefit to folding smooth convenient carrying.

Connecting pipe 1 of fold condition, through spanner 2 application of force in pivot 70 unblock connecting pipe 1, and upwards application of force in connecting pipe 1 makes it upwards rotate for supporting seat 6 towards the direction of expanding, at this in-process, pivot 70 rotates along with connecting pipe 1's upwards rotation under the effect of elasticity piece that resets, when connecting pipe 1 rotated to predetermineeing the expansion angle, connecting pipe 1 is by the locking mechanism locking that is in the reseing equally, thereby effectively prevented connecting pipe 1 from standing the free hypsokinesis of dead weight after coming before spanner 2 is locked, user's safety in utilization has greatly been guaranteed.

Two supporting seats 6 on the bottom plate 4 are arranged at intervals along the left-right direction, the bottom end of each supporting seat 6 is provided with a rotary drum seat 11 which is horizontal in the axial direction in an extending mode, the opposite side faces of the two supporting seats 6 are connected with the two ends of the rotary drum seat 11 in a rotating mode together, the rotary drum seat 11 rotates relatively through the edge of the position where the rotary drum seat 11 is combined with the supporting seats 6, and the inner and outer edge lamination layers exist at the position where the rotary drum seat 11 is connected with the supporting seats 6; the rotating shaft 70 axially penetrates through the supporting seat 6 and the rotary drum seat 11, and the locking mechanism is located inside the rotary drum seat 11.

The locking mechanism comprises a fixed block 72 fixedly sleeved on the rotating shaft 70, a sliding block 73 is sleeved on the rotating shaft 70 positioned outside the side surface of the fixed block 72, the side surfaces of the sliding block 73 opposite to the fixed block 72 are mutually clamped through a clamping part, and the sliding block 73 is clamped with the side surface of the bottom end of the connecting pipe 1; the fixed block 72 rotates along with the rotating shaft 70, the sliding block 73 is pushed by the clamping part to move outwards along the axial direction of the rotating shaft 70, namely, the fixed block 72 transmits the rotation of the fixed block to the sliding block 73 through the clamping part to perform axial linear motion, and the sliding block 73 is separated from the connecting pipe 1, so that the degree of freedom of the connecting pipe 1 in the rotation direction is not limited by the clamping of the sliding block 73.

As shown in fig. 5, the fixed block 72 has an end face cam structure, and an inclined guide portion 721 is provided on an end face thereof facing the slide block 73; the end face of the sliding block 73 is provided with a guide clamping part 731, and the inclined guide part 721 and the guide clamping part 731 are matched to form a clamping part between the fixed block 72 and the sliding block 73; as the fixed block 72 rotates, the inclined guide portion 721 applies an axially moving force to the slide block 73 via the guide engaging portion 731 during the rotation, so that the slide block 73 moves in a direction away from the fixed block 72.

A plurality of ribs 732 are provided on the outer wall surface of the sliding block 73 along the circumferential direction, and the side surface of the bottom end of the connection pipe 1 is provided with slots 12 corresponding to the ribs 732 one by one, as shown in fig. 6, that is, the slots 12 are provided at the end portions of the inner wall surface of the rotary cylinder base 11.

A sliding seat 75 is concentrically arranged on the rotating shaft 70 positioned on the side surface of the sliding block 73 in the outward moving direction, the sliding seat 75 is fixedly arranged with the supporting seat 6, and the sliding seat 75 is provided with an inner cavity matched with the circumferential shape of the sliding block 73; the slide block 73 is moved outward and received in the inner cavity of the slide holder 75.

The inner side surface of the sliding seat 75 is provided with sliding grooves 751 which axially penetrate and are in one-to-one correspondence with the convex ribs 732 on the sliding block 73; the slide groove 751 provides a guide function for the outward movement of the slide block 73.

The outer wall surface of the sliding seat 75 is attached to the corresponding supporting seat 6 and locked by a fastener, and the side surface of the sliding seat 75 attached to the supporting seat 6 is also provided with a clamping structure matched with the concave-convex part.

The slide block 73 is axially biased by the compression spring 74, and the slide block 73 is moved in the direction of the fixed block 72 by the pressure of the compression spring 74.

In this embodiment, the compression spring 74 is sleeved on the rotating shaft 70 between the sliding block 73 and the supporting seat 6, and the compression spring 74 is located in the inner cavity of the sliding seat 75.

The spanner 2 is installed to the end lock of pivot 70, and spanner 2 is located the outside of corresponding supporting seat 6 side, installs anti-disengaging mechanism 5 between spanner 2 and the supporting seat 6, and anti-disengaging mechanism 5 locks or unblock spanner 2 for corresponding supporting seat 6.

The end of the rotating shaft 70 is locked with the mounting wrench 2 by a coaxial fastening bolt 76.

In this embodiment, the elastic reset member is a main torsion spring 71, two ends of the main torsion spring 71 are respectively connected to the rotating shaft 70 and the connecting pipe 1, the main torsion spring 71 deforms when there is a relative rotation angle between the rotating shaft 70 and the connecting pipe 1, and the rotating shaft 70 and the connecting pipe 1 are reset relatively by a deformation force.

In this embodiment, three sets of the inclined guide portions 721 are circumferentially provided on the end surface of the fixed block 72, and similarly, three sets of the guide engaging portions 731 are provided on the end surface of the sliding block 73; curved surface structures which are mutually attached and matched are arranged between the inclined guide parts 721 and the guide clamping parts 731, and as can be seen from the combination of fig. 5, a blocking surface which is consistent with the axial direction is arranged between the adjacent inclined guide parts 721, so that the inclined guide parts 721 can push the sliding block 73 to move away through the force applied by the guide clamping parts 731 when rotating only in a single direction.

In this embodiment, the number of ribs 732 on the outer wall surface of sliding block 73 may be two or more, wherein the central angle between two ribs 732 is the same as the angle between the folded and unfolded states of connecting pipe 1.

In this embodiment, the angle between two adjacent ribs 732 on the sliding block 73 is folded with the connecting pipe 1, the angle between the unfolded states is consistent, so that when folding, only slight application of touch force is needed for the wrench 2, when the connecting pipe 1 is folded to the preset position along with the dead weight downward rotation, the ribs 732 on the sliding block 73 correspond to and match with the clamping grooves 12 on the inner wall surface of the connecting pipe 1, the sliding block 73 resets under the elastic force action of the pressure spring 74 and clamps with the connecting pipe 1, and the locking after the dead weight folding of the connecting pipe 1 is realized.

In this embodiment, the two side surfaces of the rib 732 are arranged in a tapered manner and are outwardly divergent, and the size of the end of the rib 732 facing the connecting pipe 1 is smaller than that of the end facing the sliding seat 75, so that when the rib 732 slides to the connecting pipe 1 and is clamped with the clamping groove 12, the clamping is guided by the tapered side surface, the clamping between the sliding block 73 and the connecting pipe 1 is more stable and reliable, and the assembly gap is reduced by the aid of the assistance.

In this embodiment, the outer side surfaces of the two supporting seats 6 are respectively buckled with the decoration cover 3, and the lower portion of the wrench 2 is accommodated between the corresponding outer side surface of the supporting seat 6 and the decoration cover 3.

In this embodiment, as shown in fig. 7, the anti-slip mechanism 5 has the following structure: including hasp 52, run through hasp 52 mid-mounting around with round pin axle 53, round pin axle 53 both ends tip is installed on spanner 2, hasp 52 rotates for spanner 2 through round pin axle 53 and is connected, still install little torsional spring 51 between hasp 52 and the spanner 2, little torsional spring 51 suit is on round pin axle 53, hasp 52 reaches relative balance through between little torsional spring 51 and the spanner 2, hasp 52 bottom is buckled to extend towards the direction of supporting seat 6 and is constituted buckle 521, buckle 521 clamps to corresponding bayonet 61 on the supporting seat 6 in, thereby use the rotation degree of freedom locking of pivot 70 axial as the centre of a circle with spanner 2 for supporting seat 6.

In this embodiment, the top end of the wrench 2 is bent toward the supporting seat 6 to form an inward-turned portion 21.

The upper part of the latch 52 is forced inwards towards the direction of the support seat 6, so that the buckle 521 at the lower end of the latch 52 is disengaged from the bayonet 61 of the support seat 6, and the small torsion spring 51 deforms; at the same time, force is applied to the wrench 2, so that the wrench drives the rotating shaft 70 to rotate together.

In the folding method of the folding mechanism of the scooter of the embodiment, the elastic reset piece is installed between the rotating shaft 70 and the connecting pipe 1, and the folding method comprises the following steps:

take the connection pipe 1 from the unfolded state to the folded state as an example:

force is applied to the wrench 2, the rotating shaft 70 is driven to rotate by the wrench 2, the fixed block 72 is driven to synchronously rotate by the rotating shaft 70, the fixed block 72 applies axial outward thrust to the sliding block 73 through the clamping part while rotating, the sliding block 73 moves outwards and is separated from the connecting pipe 1, so that the connecting pipe 1 which is arranged in a backward tilting mode swings backwards in the direction of the bottom plate 4 under the action of self gravity, at the moment, the pressure spring 74 is pressed to deform, and the elastic resetting piece between the connecting pipe 1 and the rotating shaft 70 deforms;

the force applied to the wrench 2 is released, the connecting pipe 1 and the rotating shaft 70 generate relative angular displacement due to the self-weight rotation of the connecting pipe 1, the rotating shaft 70 reversely rotates under the deformation force of the elastic resetting piece until the deformation of the elastic resetting piece is recovered, and the rotating shaft 70 resets relative to the connecting pipe 1;

the reverse rotation of the rotating shaft 70 drives the synchronous reverse rotation of the fixed block 72, so that the clamping parts of the fixed block 72 and the sliding block 73, which are mutually attached, tend to be separated from each other, the sliding block 73 moves towards the fixed block 72 under the action of the deformation pressure of the pressure spring 74 until the clamping parts between the sliding block 73 and the fixed block 72 are clamped again, at this time, the sliding block 73 and the connecting pipe 1 are clamped again, and the automatic clamping and locking of the folded connecting pipe 1 are completed.

The process of converting the folding state of the connecting pipe 1 into the unfolding state is similar, force is applied to the wrench 2 to drive the rotating shaft 70 to rotate, the fixed block 72 rotates to push the sliding block 73 to move outwards, the sliding block 73 is separated from the clamping groove 12 of the connecting pipe 1, and the locking mechanism locks and unlocks the connecting pipe 1; at the same time, a force spreading upward is applied to the connection pipe 1, so that the connection pipe 1 is rotated upward with respect to the base plate 4; in the process of unfolding the connecting pipe 1, the rotating shaft 70 is driven by the deformed elastic reset piece to rotate along with the rotating shaft 70, the fixed block 72 rotates along with the rotating shaft 70, so that the sliding block 73 moves towards the direction of the fixed block 72 under the action of the pressure spring 74 until the connecting pipe 1 is unfolded to a preset angle, the rotating shaft 70 synchronously rotates to a corresponding position, the convex rib 732 of the sliding block 73 is clamped into the clamping groove 12 of the connecting pipe 1 again, and the locking of the connecting pipe 1 is realized; at this time, although wrench 2 is not yet locked to support base 6 by retaining mechanism 5, connection pipe 1 is not tilted backward by its own weight even when slide block 73 is locked in the locking mechanism, and safety of the user before wrench 2 is manually locked to support base 6 by retaining mechanism 5 is ensured.

In the invention, the locking or unlocking of the connecting pipe 1 by the locking mechanism is realized through the rotation of the rotating shaft 70, so that the unlocked connecting pipe 1 is folded under the action of self gravity, the structure is ingenious and novel, the stability is high, the carrying is convenient, and the use experience of a customer is greatly improved; and the folded connecting pipe 1 is locked again under the reset action of the locking mechanism, and the connecting pipe 1 in the unfolded state is also automatically reset and locked by the locking mechanism, so that the use safety is greatly improved, and the use is convenient and reliable.

The above description is intended to be illustrative and not restrictive, and the scope of the invention is defined by the appended claims, which may be modified in any manner within the scope of the invention.