Special-shaped pipe locking and clamping mechanism

Abstract

The utility model relates to a special-shaped pipe locking and clamping mechanism, and belongs to the technical field of frame structures. The special-shaped pipe locking and clamping mechanism comprises a vertical pipe, a direction limiting seat, an adjusting mechanism and a pushing assembly, a positioning opening is formed in the side wall of the vertical pipe, and the seat rod is inserted into the vertical pipe in a liftable mode; the positioning sleeve is arranged between the vertical pipe and the seat post, and a space between the seat post and the inner wall of the positioning sleeve is a movable cavity; the limiting seat is inserted into the positioning opening, and a limiting groove is formed in the limiting seat in a penetrating mode and communicates with the movable cavity; the adjusting mechanism is arranged in the direction limiting groove and extends into the movable cavity; the pushing assembly is used for pushing the adjusting mechanism to move in the length direction of the limiting groove to push the positioning sleeve to deform so as to abut against or loosen the seat rod; the inner wall of the direction limiting groove abuts against the adjusting mechanism, the positioning sleeve is provided with a deformation area, and the deformation area directly faces the adjusting mechanism. According to the special-shaped pipe locking and clamping mechanism provided by the embodiment of the invention, a seat post which is greatly different from the interior of a vertical pipe in size or shape can be fixed.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of frame structures, in particular to a special-shaped pipe locking and clamping mechanism. BACKGROUND

[0002] The main structure of a common scooter can be divided into the following parts: a frame, a steering system, a brake system, a transmission system and a wheel set. In a simulated riding system designed according to a bicycle, the main part to be restored is the frame of the scooter, which is the core part of the scooter (such as a bicycle), is the basic structure of the scooter, and is the skeleton and main body of the scooter. All other parts are directly or indirectly fixed to the frame.

[0003] The seat of the scooter is connected to the vertical pipe of the frame through a seat rod. When adjusting the height of the seat, the seat rod is manually adjusted to slide up and down in the vertical pipe of the frame. When the seat is moved to the appropriate height, the seat rod needs to be fixed by the fixing structure on the vertical pipe. The conventional fixing structure mostly reduces the opening size of the vertical pipe by means of screws or straps to clamp the seat rod. The internal size of the vertical pipe can be changed in a small range, and the internal shape of the vertical pipe is fixed. In the face of seat rods with large differences in internal size or mismatched internal shape of the vertical pipe, the existing vertical pipe is difficult to fit the seat rod, resulting in poor fixing effect of the vertical pipe on the seat rod and the risk of loose seat rod. CONTENT OF THE UTILITY MODEL

[0004] The application aims to solve the above problems and provides a special-shaped pipe locking and clamping mechanism, which can fix seat rods with large differences in internal size or shape of the vertical pipe, so that the above problems are improved.

[0005] The application is achieved by the following technical scheme:

[0006] The application provides a special-shaped pipe locking and clamping mechanism, which comprises a vertical pipe, a direction-limiting seat, an adjusting mechanism and a pushing assembly. A positioning opening is formed in the side wall of the vertical pipe, and a seat rod is inserted into the vertical pipe and can be lifted and lowered. A positioning sleeve is arranged between the vertical pipe and the seat rod, and the space between the seat rod and the inner wall of the positioning sleeve is an active cavity. The direction-limiting seat is inserted into the positioning opening and is provided with a direction-limiting groove, and the direction-limiting groove is in communication with the active cavity. The adjusting mechanism is arranged in the direction-limiting groove and extends into the active cavity. The pushing assembly is used to push the adjusting mechanism to move along the length direction of the direction-limiting groove and push the positioning sleeve to deform so as to tightly press or release the seat rod. The inner wall of the direction-limiting groove is in abutment with the adjusting mechanism, the positioning sleeve has a deformation area, and the deformation area is opposite to the adjusting mechanism.

[0007] The technical scheme of the embodiment of the present application is characterized in that the pushing assembly is used to push the adjusting mechanism to move along the length direction of the limiting groove to compress or loosen the seat rod, when the pushing assembly applies a pushing force to the adjusting mechanism, the adjusting mechanism moves towards the seat rod and pushes the positioning deformation to tightly press against the seat rod, so as to fix the seat rod, when the pushing assembly no longer applies the pushing force to the adjusting mechanism, the pressure applied by the adjusting mechanism to the seat rod disappears, and the seat rod can be lifted or lowered in the stand pipe to adjust the height of the seat, since the adjusting mechanism only needs to apply force to the seat rod through the deformation of the positioning sleeve to tightly press against the position of the seat rod, the adjusting mechanism can be fixed to various special-shaped seat rods with large differences in internal shape from the stand pipe without being limited by the shape of the seat rod; the adjusting mechanism is arranged in the limiting groove and extends into the movable cavity, the adjusting mechanism is at least partially located in the limiting groove, the length direction of the limiting groove is perpendicular to the length direction of the seat rod, the limiting groove guides the adjusting mechanism to move along the length direction of the limiting groove, when the adjusting mechanism compresses the seat rod, the force applied by the adjusting mechanism to the seat rod can be perpendicular to the length direction of the seat rod (i.e. the lifting direction of the seat rod), so that the movement of the seat rod is effectively prevented, the inner wall of the limiting groove abuts against the adjusting mechanism, and the force applied by the limiting groove to the adjusting mechanism can buffer a part of the stress from the seat rod that the adjusting mechanism receives when the pushing assembly pushes the adjusting mechanism to compress the seat rod, so that the stress is dispersed to a smaller amount of the adjusting mechanism, thereby reducing the risk of deformation and damage of the adjusting mechanism due to excessive stress; the positioning sleeve has a deformation zone opposite to the adjusting mechanism, the strength of the deformation zone of the positioning sleeve is lower than that of other parts, and the deformation zone can be deformed to tightly press against the seat rod after being pushed by the adjusting mechanism; the positioning sleeve can fill the gap between the seat rod and the stand pipe, can provide a larger contact surface for the seat rod, and can share a part of the pressure in the length direction of the seat rod through the friction between the part of the positioning sleeve other than the deformation zone and the seat rod, so as to reduce the stress from the seat rod that the adjusting mechanism bears, and reduce the risk of damage of the adjusting mechanism due to excessive force from the seat rod, the special-shaped pipe locking and clamping mechanism provided by the present application can be used to fix various shapes and diameters of seat rods, and has a larger application range.

[0008] In some embodiments, the adjusting mechanism comprises a first adjusting assembly and a second adjusting assembly, the first adjusting assembly is arranged in the limiting groove and extends into the movable cavity, the first adjusting assembly is provided with a connecting hole, and the second adjusting assembly comprises a connecting rod, the connecting rod is adjustably connected with the connecting hole.

[0009] In the technical scheme of the embodiment, the first adjusting assembly is arranged in the limiting groove and extends into the movable cavity, the first adjusting assembly is at least partially located in the limiting groove, the length direction of the limiting groove is perpendicular to the length direction of the seat rod, the limiting groove guides the first adjusting assembly to move along the length direction of the limiting groove, when the first adjusting assembly is pressed against the seat rod, the force applied by the first adjusting assembly to the seat rod is perpendicular to the length direction of the seat rod (i.e. the lifting direction of the seat rod), thereby effectively preventing the movement of the seat rod, the inner wall of the limiting groove abuts against the first adjusting assembly, the force applied by the limiting groove to the first adjusting assembly can buffer a part of the stress from the seat rod that the first adjusting assembly receives when the pushing assembly pushes the first adjusting assembly to press against the seat rod, so that the stress is dispersed to the second adjusting assembly in a smaller amount, thereby reducing the risk of deformation and damage of the connecting rod and the teeth in the connecting hole due to excessive stress, the connecting rod drives the first adjusting assembly to move along the connecting rod through rotation, so that the size of the part of the connecting rod located inside the connecting hole of the first adjusting assembly is increased or reduced, thereby increasing or reducing the size of the adjusting mechanism in the length direction of the limiting groove, under the premise that the distance moved by the adjusting mechanism each time the pushing assembly pushes the adjusting mechanism is equal, changing the size of the adjusting mechanism can control the increase or decrease of the pressure applied by the adjusting mechanism to the seat rod, and the length of the part of the adjusting mechanism extending into the movable cavity can be adapted to the size of the gap between the seat rod and the stand pipe, so that the adjusting mechanism can press against seat rods of various widths and pipe diameters.

[0010] In some embodiments, the first adjusting assembly comprises a pressing piece and a pressing ring, the connecting hole is arranged in the pressing piece, the pressing ring is connected to one end of the pressing piece facing the movable cavity, the connecting hole is coaxial with the axis of the pressing ring, and the outer peripheral surface of the pressing ring exceeds the outer wall surface of the pressing piece.

[0011] In the technical scheme of the embodiment, the pressure applied by the pressing ring to the seat rod can be uniformly dispersed on the contact surface between the pressing ring and the positioning sleeve, the outer peripheral surface of the pressing ring exceeds the outer wall surface of the pressing piece, so that the area of the surface of the pressing ring facing the seat rod is larger, the contact area between the adjusting mechanism and the positioning sleeve is increased, the pressure borne by each part of the contact surface between the positioning sleeve and the pressing ring is smaller, and the risk of deformation or damage of the positioning sleeve and the seat rod abutting against the positioning sleeve due to stress concentration when the seat rod is pressed by the pressing ring is reduced.

[0012] In some embodiments, the projection of the pressing piece on a plane perpendicular to the length direction of the limiting groove is a polygon, and the limiting groove is adapted to and fitted with the outer wall surface of the pressing piece.

[0013] In the technical scheme of the embodiment of the present application, the projection of the pressing piece on the plane perpendicular to the length direction of the limiting groove is a polygon, the limiting groove is matched with the outer wall surface of the pressing piece and is in close contact, the inner wall of the limiting groove can be clamped with the outer wall surface of the pressing piece, thereby limiting the rotation of the pressing piece, avoiding the risk that the pressing piece rotates by itself to change the overall length of the adjusting mechanism under the action of the pushing force from the pushing assembly and the stress from the seat rod, allowing the adjusting mechanism to keep its length unchanged when the seat rod is pressed, and thereby stabilizing the pressure transmitted by the adjusting mechanism to the seat rod.

[0014] In some embodiments, the limiting groove comprises a first groove segment and a second groove segment, the second groove segment is closer to the movable cavity than the first groove segment, the pressing piece is located in the first groove segment, and the pressing ring is located in the second groove segment; wherein, in the length direction of the limiting groove, the size of the pressing piece does not exceed the size of the first groove segment, and the size of the pressing ring does not exceed the size of the second groove segment.

[0015] In the technical scheme of the embodiment of the present application, when the outer wall of the seat rod is in close contact with the inner wall of the stand pipe, in the length direction of the limiting groove, the size of the pressing piece does not exceed the size of the first groove segment, and the size of the pressing ring does not exceed the size of the second groove segment, the pressing ring can be entirely pushed into the second groove segment by the seat rod, and the pressing piece will not exceed the end of the first groove segment away from the second groove segment, allowing the part of the connecting rod connected with the pressing piece to be located in the first groove segment, allowing the first groove segment to share the force received by the part of the connecting rod connected with the pressing piece and support the connecting rod and the pressing piece from being easily deformed or damaged due to the force, reducing the risk of damage to the connecting rod and the pressing piece, and improving the structural stability of the adjusting mechanism.

[0016] In some embodiments, the first adjusting assembly further comprises a first elastic piece, the first elastic piece is arranged at the end of the pressing ring away from the pressing piece, the pressing ring is in contact with the positioning sleeve through the first elastic piece, and the first elastic piece blocks the inner hole at the center of the pressing ring.

[0017] In the technical scheme of the embodiment of the present application, the first elastic piece is arranged at the end of the pressing ring away from the pressing piece, the pressing ring is in contact with the positioning sleeve through the first elastic piece, the first elastic piece converts the rigid force applied by the pressing ring to the first elastic piece into an elastic force and then applies the elastic force to the positioning sleeve, and can deform in close contact with the surface of the positioning sleeve, allowing the force applied to the surface of the positioning sleeve to automatically adjust the force size of each area according to the ups and downs of the surface of the positioning sleeve, thereby reducing the risk of local deformation or damage of the positioning sleeve due to the force, the first elastic piece blocks the inner hole at the center of the pressing ring, allowing the first elastic piece to have more contact area with the positioning sleeve, allowing the force applied by the first elastic piece to the positioning sleeve to be more dispersed, and in addition, allowing the part of the first elastic piece in contact with the positioning sleeve to have good overallity, limiting the deformation direction of the first elastic piece when the first elastic piece is in contact with the positioning sleeve, and allowing the direction of the force applied by the first elastic piece to the positioning sleeve and the seat rod to be not easily deviated.

[0018] In some embodiments, the first elastic member covers the outer circumferential surface of the compression ring and is attached to the inner wall of the second groove segment; and the size of the first elastic member in the length direction of the limiting groove is not greater than the size of the second groove segment.

[0019] In the technical scheme of the embodiments, the first elastic member covers the outer circumferential surface of the compression ring and is attached to the inner wall of the second groove segment, which can limit the moving direction of the compression ring by the inner wall of the second groove segment, so that the compression ring can move along the length direction of the limiting groove; when the compression ring completely enters the movable cavity and then returns to the second groove segment, the first elastic member can be deformed by the limiting seat when the first elastic member contacts the end surface of the limiting seat facing the movable cavity, so that the first elastic member and the compression ring can enter the second groove segment more smoothly; and the size of the first elastic member in the length direction of the limiting groove is not greater than the size of the second groove segment, so that the first elastic member can completely enter the second groove segment, and the first elastic member can avoid deforming the positioning sleeve to block the path of the seat rod entering the stand pipe.

[0020] In some embodiments, the connecting hole is in communication with the inner hole of the center of the compression ring, and part of the first elastic member extends into the inner hole of the compression ring.

[0021] In the technical scheme of the embodiments, the connecting hole is in communication with the inner hole of the center of the compression ring, and part of the first elastic member extends into the inner hole of the compression ring, so that the connecting hole, the inner hole of the compression ring, the first elastic member and the connecting rod can form a relatively closed space, the internal pressure of the space increases to push the first elastic member to deform towards the seat rod during the connection of the connecting rod and the connecting hole, so that the first elastic member can also apply some pressure to the seat rod when the first elastic member is pressed against the seat rod, part of the first elastic member extends into the inner hole of the compression ring, and the part of the elastic member extending into the inner hole of the compression ring can fix the relative position of the first elastic member and the compression ring, and is not easy to be separated from the inner hole of the compression ring when deforming towards the seat rod under the action of internal pressure, thereby improving the connection stability between the compression ring and the first elastic member.

[0022] In some embodiments, the second adjusting assembly further comprises a push cover, the push cover is located on the side of the limiting seat away from the movable cavity, and the connecting rod is fixedly connected to the center of the push cover; and in the plane perpendicular to the length direction of the limiting groove, the size of the push cover is greater than the size of the limiting groove.

[0023] In the technical scheme of the embodiment of the application, the push cover is located on the side of the direction-limiting seat away from the movable cavity, the pushing assembly pushes the adjusting mechanism by pushing the push cover, the force applied by the pushing assembly to the adjusting mechanism can be a force deviating from the length direction of the direction-limiting groove, the push cover avoids the pushing assembly from contacting the connecting rod, buffers the force applied by the pushing assembly to the adjusting mechanism, reduces the risk of the connecting rod being bent under the force, the connecting rod is fixed at the center of the push cover, the size of the push cover is greater than the size of the direction-limiting groove in the plane perpendicular to the length direction of the direction-limiting groove, limits the path distance of the adjusting mechanism moving towards the seat rod, and avoids the risk of the adjusting mechanism being difficult to return to the direction-limiting seat after being completely pushed into the movable cavity.

[0024] In some embodiments, the second adjusting assembly further comprises a second elastic member, the second elastic member is sleeved on the connecting rod, and two ends of the second elastic member are respectively in abutment with the push cover and the first adjusting assembly.

[0025] In the technical scheme of the embodiment of the application, the second elastic member is sleeved on the connecting rod, reducing the risk of the second elastic member being bent and deviating from the length direction of the direction-limiting groove after repeated stretching and contraction, two ends of the second elastic member are respectively in abutment with the push cover and the first adjusting assembly, when the connecting rod rotates to cause the first adjusting assembly to move towards the push cover, the second elastic member is squeezed, the elastic force applied to the push cover and the first adjusting assembly gradually increases until the rotation of the connecting rod and the continuous movement of the first adjusting assembly are blocked, a certain distance between the end cover and the push cover is allowed, the first adjusting assembly can be in abutment with the positioning sleeve before the push cover contacts the direction-limiting seat when the adjusting mechanism is pushed by the pushing assembly towards the seat rod, the force applied by the pushing assembly to the adjusting mechanism can be smoothly applied to the positioning sleeve and the seat rod, in addition, the second elastic member can also abut against the pressing member, thereby reducing the risk of the connection between the pressing member and the connecting rod being loose, and further, the user can adjust and determine the size of the connecting rod entering the connecting hole according to the force applied by the second elastic member to the push cover.

[0026] In some embodiments, the pushing assembly comprises a support plate, a rotating shaft and a cam, the support plate is connected to the outer circumferential surface of the stand pipe and is arranged close to the positioning opening, the rotating shaft is rotatably arranged on the support plate, the part of the rotating shaft penetrating through the support plate is in abutment with the support plate, the cam is fixedly sleeved on the rotating shaft and rotates synchronously with the rotating shaft, the cam is in abutment with the second adjusting assembly, and the rotating shaft rotates to drive the cam to push the first adjusting assembly to press the seat rod or loosen the seat rod.

[0027] In the technical scheme of the embodiment of the present application, the support plate is arranged close to the positioning opening, so that the distance between the support plate and the cam is relatively small, and the rotating force of the cam on the support plate is relatively small, thereby reducing the risk of deformation and damage of the support plate; the rotating shaft is rotatably arranged on the support plate, and the part of the rotating shaft penetrating through the support plate abuts against the support plate, so that the force of the support plate applied to the rotating shaft limits the self-rotation of the rotating shaft, and the fixing effect of the special-shaped pipe locking and clamping mechanism on the seat rod is stable; the rotating shaft drives the cam to rotate to press or release the seat rod, the cam applies a pushing force to the adjusting mechanism, the increasing or decreasing process of the force applied to the seat rod and the adjusting mechanism is gradually and relatively smooth, and the risk of impact on the seat rod and the adjusting mechanism due to the rapid change of the force is reduced.

[0028] Additional aspects and advantages of the present application will be made apparent from the following description. BRIEF DESCRIPTION OF DRAWINGS

[0029] In order to more clearly illustrate the technical scheme of the embodiment of the present application, the drawings needed in the embodiment will be briefly introduced below, and it should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.

[0030] Figure 1 Structure schematic view of the cycling simulation system provided by some embodiments of the present application;

[0031] Figure 2 Structure schematic view of the upright pipe and the saddle provided by some embodiments of the present application;

[0032] Figure 3 Side view of the cycling simulation system provided by some embodiments of the present application;

[0033] Figure 4 Structure schematic view of the adjusting mechanism provided by some embodiments of the present application; Figure 3 Cross-sectional view of A-A in the structure schematic view of the adjusting mechanism provided by some embodiments of the present application;

[0034] Figure 5 Enlarged view of B in the structure schematic view of the adjusting mechanism provided by some embodiments of the present application; Figure 4

[0035] Figure 6 Structure schematic view of the positioning sleeve.

[0036] ​Icon: 1- seat pole; 2- riser; 20- positioning port; 21- movable cavity; 3- direction limiting seat; 30- direction limiting groove; 300- first groove segment; 301- second groove segment; 4- adjusting mechanism; 40- first adjusting assembly; 400- connecting hole; 401- pressing piece; 402- pressing ring; 403- first elastic piece; 41- second adjusting assembly; 410- connecting rod; 411- push cover; 412- second elastic piece; 5- pushing assembly; 50- support plate; 51- rotating shaft; 52- cam; 6- positioning sleeve; 60- deformation area. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are some embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0038] Unless otherwise defined, all technical and scientific terms used in the present application have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs; the terms used in the specification of the present application are only for the purpose of describing the specific embodiments and are not intended to limit the present application; the terms "include" and "have" and any variations thereof in the specification and claims of the present application and the above description of drawings are intended to cover non-exclusive inclusion. The terms "first", "second" and the like in the specification and claims of the present application or the above description of drawings are used to distinguish different objects, rather than to describe a particular order or primary and secondary relationship.

[0039] In the present application, the phrase "embodiment" means that the specific features, structures or characteristics described in conjunction with the embodiment can be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment to other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described in the present application can be combined with other embodiments.

[0040] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mount", "connect", "connection", "attach" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be directly connected, or indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0041] The term "and / or" in the present application is only used to describe the relationship of the associated objects, which means that there are three relationships, for example, A and / or B, which means that there are three cases: A exists alone, A and B exist together, and B exists alone. In addition, the character " / " in the present application generally represents an "or" relationship between the front and rear associated objects.

[0042] "Multiple" appearing in the present application refers to two or more (including two), and similarly, "multiple groups" refers to two or more groups (including two groups), and "multiple pieces" refers to two or more pieces (including two pieces).

[0043] The special-shaped pipe locking and clamping mechanism provided by the present application can be applied to a simulated riding system and a frame of various scooters, and the present application is described by taking a bicycle as an example.

[0044] According to some embodiments of the present application, as shown in Figures 1-6 The special-shaped pipe locking and clamping mechanism provided by the present application includes a vertical pipe 2, a direction-limiting seat 3, an adjusting mechanism 4, and a pushing assembly 5. The vertical pipe 2 has a positioning opening 20 formed in the side wall, and a seat rod 1 is inserted into the vertical pipe 2 in a liftable manner. A positioning sleeve 6 is arranged between the vertical pipe 2 and the seat rod 1, and the space between the seat rod 1 and the inner wall of the positioning sleeve 6 is an active cavity 21. The direction-limiting seat 3 is inserted into the positioning opening 20 and has a direction-limiting groove 30 formed therethrough, and the direction-limiting groove 30 is in communication with the active cavity 21. The adjusting mechanism 4 is arranged in the direction-limiting groove 30 and extends into the active cavity 21. The pushing assembly 5 is used to push the adjusting mechanism 4 to move along the length direction of the direction-limiting groove 30, and to push the positioning sleeve 6 to deform so as to tightly press or release the seat rod 1. The inner wall of the direction-limiting groove 30 is in abutment with the adjusting mechanism 4, and the positioning sleeve 6 has a deformation area 60 opposite to the adjusting mechanism 4.

[0045] The part of the seat rod 1 in the vertical pipe 2 can be pressed by the adjusting mechanism 4 as long as it is not higher than the positioning opening 20. The positioning opening 20 is arranged close to the opening of the vertical pipe 2, so that the movable distance of the seat rod 1 in the vertical pipe 2 is longer, and thus the height-adjustable range of the saddle is larger, which can meet the diverse needs of users.

[0046] The vertical pipe 2 can be arranged in an inclined manner on the frame, so that when the seat rod 1 moves along the length direction of the vertical pipe 2, the spacing distance between the saddle and the handlebar can be changed synchronously with the height of the saddle, so as to meet the needs of users with different body proportions.

[0047] The direction-limiting seat 3 can be fixedly connected with the positioning opening 20, or the direction-limiting seat 3 can be in interference fit with the positioning opening 20, or the inner wall of the positioning opening 20 can be provided with threads, and the direction-limiting seat 3 can be in threaded fit with the positioning opening 20.

[0048] The direction-limiting seat 3 does not exceed the inner wall of the vertical pipe 2.

[0049] The deformation zone 60 can be provided with an opening so that the strength of this zone is lower than that of other zones of the positioning sleeve 6, so that the deformation zone 60 can deform under the push of the adjustment mechanism 4 to press against the seat rod 1.

[0050] The opening of the deformation zone 60 can be "I" shaped, allowing part of the positioning sleeve 6 of the deformation zone 60 to form a cantilever structure that is prone to bending deformation.

[0051] The pushing component 5 is used to push the adjusting mechanism 4 to move along the length direction of the limiting groove 30 to press or release the seat rod 1. When the pushing component 5 applies a thrust to the adjusting mechanism 4, the adjusting mechanism 4 moves toward the seat rod 1 and pushes the positioning deformation to press against the seat rod 1, thereby fixing the seat rod 1. When the pushing component 5 no longer applies a thrust to the adjusting mechanism 4, the pressure applied to the seat rod 1 by the adjusting mechanism 4 disappears, and the seat rod 1 can be raised and lowered within the riser tube 2 to adjust the height of the seat. Since the adjusting mechanism 4 only needs to apply force to the seat rod 1 by deforming the positioning sleeve 6 to press against the seat rod 1, the adjusting mechanism... 4. The shape of the seat rod 1 is not limited by its shape, and various irregularly shaped seat rods 1 that differ significantly from the internal shape of the riser 2 can be fixed. The adjustment mechanism 4 is set in the limiting groove 30 and extends into the movable cavity 21. The adjustment mechanism 4 is at least partially located in the limiting groove 30. The length direction of the limiting groove 30 is perpendicular to the length direction of the seat rod 1. The limiting groove 30 guides the adjustment mechanism 4 to move along its own length direction. When the adjustment mechanism 4 presses the seat rod 1, the force applied by the adjustment mechanism 4 to the seat rod 1 can be perpendicular to the length direction of the seat rod 1 (i.e., the lifting direction of the seat rod 1), thereby effectively preventing... The movement of the stop rod 1 is stopped, and the inner wall of the limiting groove 30 abuts against the adjusting mechanism 4. The force applied to the adjusting mechanism 4 by the limiting groove 30 can buffer part of the stress from the stop rod 1 when the pushing component 5 pushes the adjusting mechanism 4 to press the stop rod 1, so that the amount of this stress distributed to the adjusting mechanism 4 is small, thereby reducing the risk of deformation and damage to the adjusting mechanism 4 due to excessive force. The positioning sleeve 6 has a deformation area 60 facing the adjusting mechanism 4. The strength of the deformation area 60 of the positioning sleeve 6 is lower than the strength of other parts, and it can be easily deformed after being pushed by the adjusting mechanism 4. The positioning sleeve 6 can fill the gap between the seat rod 1 and the riser 2, providing more contact surface for the seat rod 1. The friction between the part of the positioning sleeve 6 other than the deformation area 60 and the seat rod 1 can share part of the pressure on the seat rod 1 in its own length direction, thereby reducing the stress on the adjustment mechanism 4 from the seat rod 1 and reducing the risk of damage to the adjustment mechanism 4 due to excessive force from the seat rod 1. The irregular tube locking clamping mechanism provided in this application can fix seat rods 1 of various shapes and diameters, and has a wide range of applications.

[0052] According to some embodiments of this application, optionally, such as Figure 5As shown, the adjusting mechanism 4 comprises a first adjusting assembly 40 and a second adjusting assembly 41, the first adjusting assembly 40 is arranged in the limiting groove 30 and extends into the movable cavity 21, the first adjusting assembly 40 is provided with a connecting hole 400, the second adjusting assembly 41 comprises a connecting rod 410, the connecting rod 410 is adjustably connected with the connecting hole 400.

[0053] The connecting rod 410 and the connecting hole 400 can be threadedly connected.

[0054] The first adjusting assembly 40 is arranged in the limiting groove 30 and extends into the movable cavity 21, the first adjusting assembly 40 is at least partially located in the limiting groove 30, the length direction of the limiting groove 30 is perpendicular to the length direction of the seat rod 1, the limiting groove 30 guides the first adjusting assembly 40 to move along the length direction of itself, when the first adjusting assembly 40 presses the seat rod 1, the force applied by the first adjusting assembly 40 to the seat rod 1 can be perpendicular to the length direction of the seat rod 1 (i.e. the lifting direction of the seat rod 1), thereby more effectively preventing the movement of the seat rod 1, the inner wall of the limiting groove 30 abuts against the first adjusting assembly 40, the limiting groove 30 can buffer a part of the stress from the seat rod 1 that the first adjusting assembly 40 receives when the pushing assembly 5 pushes the first adjusting assembly 40 to press the seat rod 1, so that the stress is dispersed to the second adjusting assembly 41 in a smaller amount, thereby reducing the risk of deformation and damage of the teeth in the connecting rod 410 and the connecting hole 400 due to excessive stress, the rotation of the connecting rod 410 drives the first adjusting assembly 40 to move along the connecting rod 410, so that the size of the part of the connecting rod 410 located inside the connecting hole 400 of the first adjusting assembly 40 increases or decreases, thereby increasing or decreasing the size of the adjusting mechanism 4 in the length direction of the limiting groove 30, under the premise that the distance of each movement of the pushing assembly 5 to push the adjusting mechanism 4 is equal, changing the size of the adjusting mechanism 4 can control the increase or decrease of the pressure applied by the adjusting mechanism 4 to the seat rod 1, and can also adapt the length of the part of the adjusting mechanism 4 extending into the movable cavity 21 to the size of the gap between the seat rod 1 and the stand pipe 2, so that the adjusting mechanism 4 can press and fix seat rods 1 of various widths and pipe diameters.

[0055] According to some embodiments of the present application, optionally, Figure 5 As shown, the first adjusting assembly 40 comprises a pressing piece 401 and a pressing ring 402, the connecting hole 400 is arranged in the pressing piece 401, the pressing ring 402 is connected to one end of the pressing piece 401 facing the movable cavity 21, the axis of the connecting hole 400 is coaxial with the axis of the pressing ring 402, and the outer peripheral surface of the pressing ring 402 exceeds the outer wall surface of the pressing piece 401.

[0056] The connecting hole 400 can be located at the center of the pressing piece 401.

[0057] The inner hole at the center of the pressing ring 402 can be provided with threads, and the hole diameter of the inner hole of the pressing ring 402 can be the same as the hole diameter of the connecting hole 400.

[0058] The outer circumferential surface of the compression ring 402 exceeds the inner wall of the limiting groove 30.

[0059] The compression ring 402 applies pressure to the seat post 1, which can be evenly distributed on the contact surface between the compression ring 402 and the positioning sleeve 6. The outer circumferential surface of the compression ring 402 exceeds the outer wall surface of the compression piece 401, so that the area of the surface of the compression ring 402 facing the seat post 1 is larger, the contact area between the adjusting mechanism 4 and the positioning sleeve 6 is increased, and the pressure on each part of the contact surface between the positioning sleeve 6 and the compression ring 402 is smaller. Thus, the risk of deformation or damage of the positioning sleeve 6 and the seat post 1 abutting against the positioning sleeve 6 due to stress concentration when the positioning sleeve 6 is compressed by the compression ring 402 is reduced.

[0060] According to some embodiments of the present application, the projection of the compression piece 401 on a plane perpendicular to the length direction of the limiting groove 30 is a polygon, and the limiting groove 30 is adapted to and fits the outer wall surface of the compression piece 401.

[0061] The projection of the compression piece 401 on a plane perpendicular to the length direction of the limiting groove 30 can be a triangle, a quadrilateral, a pentagon, a hexagon, a heptagon, an octagon, or more.

[0062] The projection of the compression piece 401 on a plane perpendicular to the length direction of the limiting groove 30 is a polygon, and the limiting groove 30 is adapted to and fits the outer wall surface of the compression piece 401, so that the inner wall of the limiting groove 30 can be engaged with the outer wall surface of the compression piece 401, thereby limiting the rotation of the compression piece 401 and avoiding the risk of the compression piece 401 rotating and moving along the connecting rod 410 to change the overall length of the adjusting mechanism 4 under the action of the pushing force from the pushing assembly 5 and the stress from the seat post 1. Thus, the adjusting mechanism 4 can maintain its length unchanged when compressing the seat post 1, so that the adjusting mechanism 4 can stably transmit pressure to the seat post 1.

[0063] According to some embodiments of the present application, as shown in Figure 5 the limiting groove 30 includes a first groove section 300 and a second groove section 301, the second groove section 301 is closer to the movable cavity 21 than the first groove section 300, at least part of the compression piece 401 is located in the first groove section 300, and the compression ring 402 is located in the second groove section 301; wherein, in the length direction of the limiting groove 30, the size of the compression piece 401 does not exceed the size of the first groove section 300, and the size of the compression ring 402 does not exceed the size of the second groove section 301.

[0064] The inner wall shape of the first groove section 300 can be different from the inner wall shape of the second groove section 301.

[0065] In a plane perpendicular to the length direction of the limiting groove 30, the size of the first groove section 300 is smaller than the size of the second groove section 301, a stepped surface is formed between the first groove section 300 and the second groove section 301, and the compression ring 402 can be blocked by the stepped surface and cannot enter the first groove section 300.

[0066] When the outer wall of the seat rod 1 is attached to the inner wall of the stand pipe 2, in the length direction of the limiting groove 30, the size of the pressing piece 401 does not exceed the size of the first groove section 300, the size of the pressing ring 402 does not exceed the size of the second groove section 301, the pressing ring 402 can be entirely pushed into the second groove section 301 by the seat rod 1, the pressing piece 401 will not exceed the end of the first groove section 300 away from the second groove section 301, the part of the connecting rod 410 connected with the pressing piece 401 can be located in the first groove section 300, the first groove section 300 can share the force borne by the part of the connecting rod 410 connected with the pressing piece 401 and support the connecting rod 410 and the pressing piece 401 not to be easily deformed or damaged due to the force, thereby reducing the risk of damage of the connecting rod 410 and the pressing piece 401 and improving the structural stability of the adjusting mechanism 4.

[0067] According to some embodiments of the present application, optionally, as shown in Figures 4-5 The first adjusting assembly 40 further includes a first elastic piece 403, which is arranged at the end of the pressing ring 402 away from the pressing piece 401. The pressing ring 402 contacts the positioning sleeve 6 through the first elastic piece 403, and the first elastic piece 403 blocks the inner hole at the center of the pressing ring 402.

[0068] The first elastic piece 403 can be, but is not limited to, resin, rubber, plastic, etc.

[0069] The first elastic piece 403 is arranged at the end of the pressing ring 402 away from the pressing piece 401. The pressing ring 402 contacts the positioning sleeve 6 through the first elastic piece 403. The first elastic piece 403 converts the rigid force applied by the pressing ring 402 to the first elastic piece 403 into an elastic force and then applies the elastic force to the positioning sleeve 6, and can deform to fit the surface of the positioning sleeve 6, so that the force applied to the surface of the positioning sleeve 6 can automatically adjust the force of each area according to the ups and downs of the surface of the positioning sleeve 6, thereby reducing the risk of local deformation or damage of the positioning sleeve 6 due to the force. The first elastic piece 403 blocks the inner hole at the center of the pressing ring 402, so that the first elastic piece 403 can have more contact area with the positioning sleeve 6, the force applied by the first elastic piece 403 to the positioning sleeve 6 can be more dispersed, and in addition, the part of the first elastic piece 403 contacting the positioning sleeve 6 can have better integrity, limiting the deformation direction of the first elastic piece 403 when contacting the positioning sleeve 6, so that the direction of the force applied by the first elastic piece 403 to the positioning sleeve 6 and the seat rod 1 is not easy to deviate.

[0070] According to some embodiments of the present application, optionally, as shown in Figure 5 The first elastic piece 403 covers the outer circumferential surface of the pressing ring 402 and fits the inner wall of the second groove section 301. In the length direction of the limiting groove 30, the size of the first elastic piece 403 does not exceed the size of the second groove section 301.

[0071] The first elastic member 403 can not exceed the surface of the compression ring 402 towards the compression member 401, so that the compression ring 402 can be in contact with the stepped surface between the first groove section 300 and the second groove section 301 to effectively prevent the compression ring 402 from entering the first groove section 300; or the first elastic member 403 can completely wrap the compression ring 402, so that the first elastic member 403 replaces the compression ring 402 to be in contact with the stepped surface between the first groove section 300 and the second groove section 301, thereby buffering the impact force between the stepped surface and the compression ring 402 and reducing the risk of damage to the compression ring 402 or the stepped surface.

[0072] The first elastic member 403 wraps the outer circumferential surface of the compression ring 402 and is in contact with the inner wall of the second groove section 301. On the one hand, the first elastic member 403 can rely on the inner wall of the second groove section 301 to limit the moving direction of the compression ring 402, so that the compression ring 402 can move along the length direction of the limiting groove 30; on the other hand, when the compression ring 402 completely enters the movable cavity 21 and then returns to the second groove section 301, the first elastic member 403 can be extruded and deformed by the limiting seat 3 when it is in contact with the end surface of the limiting seat 3 towards the movable cavity 21, so that the first elastic member 403 and the compression ring 402 can more smoothly enter the second groove section 301; in the length direction of the limiting groove 30, the size of the first elastic member 403 does not exceed the size of the second groove section 301, so that the first elastic member 403 can completely enter the second groove section 301, avoiding that the first elastic member 403 extrudes and deforms the positioning sleeve 6 to block the path of the seat rod 1 into the stand pipe 2 before the seat rod 1 enters the stand pipe 2.

[0073] According to some embodiments of the present application, optionally, as shown in Figure 5 The connecting hole 400 communicates with the inner hole at the center of the compression ring 402, and part of the first elastic member 403 extends into the inner hole of the compression ring 402.

[0074] The part of the first elastic member 403 extending into the inner hole of the compression ring 402 does not exceed the surface of the compression ring 402 towards the compression ring 402.

[0075] The connecting hole 400 communicates with the inner hole at the center of the compression ring 402, and part of the first elastic member 403 extends into the inner hole of the compression ring 402, so that the connecting hole 400, the inner hole of the compression ring 402, the first elastic member 403 and the connecting rod 410 can form a relatively closed space. During the process of connecting the connecting rod 410 with the connecting hole 400, the internal pressure of the space will increase to push the first elastic member 403 to deform towards the seat rod 1, so that the first elastic member 403 can also exert some pressure on the seat rod 1 when it is pressed tightly. Part of the first elastic member 403 extends into the inner hole of the compression ring 402, and the part of the elastic member extending into the inner hole of the compression ring 402 can fix the relative position of the first elastic member 403 and the compression ring 402, and is not easy to come off the inner hole of the compression ring 402 when deforming towards the seat rod 1 under the action of internal pressure, thereby improving the connection stability between the compression ring 402 and the first elastic member 403.

[0076] According to some embodiments of the present application, as shown in Figure 1 , Figure 5 The second adjusting assembly 41 further comprises a push cover 411 located on the side of the limiting seat 3 away from the movable cavity 21, and the connecting rod 410 is fixedly connected to the center of the push cover 411. In the plane perpendicular to the length direction of the limiting groove 30, the size of the push cover 411 is greater than that of the limiting groove 30.

[0077] The surface of the push cover 411 facing the pushing assembly 5 can be an arc surface, and the contact position between the pushing assembly 5 and the push cover 411 can be the lowest position of the arc surface, which is also the center of the push cover 411. The arc surface guides and corrects the contact position between the pushing member and the push cover 411, so that the contact position between the pushing assembly 5 and the push cover 411 is not easy to deviate from the center of the push cover 411.

[0078] The push cover 411 is located on the side of the limiting seat 3 away from the movable cavity 21, and the pushing assembly 5 pushes the adjusting mechanism 4 by pushing the push cover 411. Since the force applied by the pushing assembly 5 to the adjusting mechanism 4 can be a force deviating from the length direction of the limiting groove 30, the push cover 411 avoids the contact between the pushing assembly 5 and the connecting rod 410, buffers the force applied by the pushing assembly 5 to the adjusting mechanism 4, and reduces the risk of bending of the connecting rod 410 under the action of the force. The connecting rod 410 is fixedly connected to the center of the push cover 411. In the plane perpendicular to the length direction of the limiting groove 30, the size of the push cover 411 is greater than that of the limiting groove 30, which limits the path distance of the adjusting mechanism 4 moving towards the seat rod 1, and avoids the risk that the adjusting mechanism 4 is difficult to return to the limiting seat 3 after being completely pushed into the movable cavity 21.

[0079] According to some embodiments of the present application, as shown in Figure 5 The second adjusting assembly 41 further comprises a second elastic member 412 sleeved on the connecting rod 410, and the two ends of the second elastic member 412 abut against the push cover 411 and the first adjusting assembly 40, respectively.

[0080] The second elastic member 412 can be, but is not limited to, rubber, resin, plastic, spring, etc.

[0081] The second elastic member 412 is sleeved on the connecting rod 410, which reduces the risk of the second elastic member 412 being bent and deviated from the length direction of the limiting groove 30 after repeated stretching and contraction. The two ends of the second elastic member 412 respectively abut against the push cover 411 and the first adjusting assembly 40. When the connecting rod 410 rotates to cause the first adjusting assembly 40 to move towards the push cover 411, the second elastic member 412 is squeezed, and the elastic force applied to the push cover 411 and the first adjusting assembly 40 gradually increases until the rotation of the connecting rod 410 and the continuous movement of the first adjusting assembly are blocked, so that the end cover and the push cover 411 can have a certain distance, and when the adjusting mechanism 4 is pushed by the pushing assembly 5 towards the seat rod 1, the first adjusting assembly can abut against the seat rod 1 before the push cover 411 contacts the limiting seat 3, so that the force applied by the pushing assembly 5 to the adjusting mechanism 4 can be smoothly applied to the seat rod 1. In addition, the second elastic member 412 can also abut against the pressing piece 401, thereby reducing the risk of loose connection between the pressing piece 401 and the connecting rod 410. Furthermore, the user can also adjust and determine the size of the connecting hole 400 for the connecting rod 410 according to the force applied by the second elastic member 412 to the push cover 411.

[0082] According to some embodiments of the present application, as shown in Figures 1-2 、 Figures 4-5 The pushing assembly 5 includes a support plate 50, a rotating shaft 51 and a cam 52. The support plate 50 is connected to the outer circumferential surface of the vertical pipe 2 and is arranged close to the positioning opening 20. The rotating shaft 51 is rotatably arranged on the support plate 50, and the part of the rotating shaft 51 penetrating through the support plate 50 abuts against the support plate 50. The cam 52 is fixedly sleeved on the rotating shaft 51 and synchronously rotates with the rotating shaft 51. The cam 52 abuts against the second adjusting assembly 41. The rotating shaft 51 rotates to drive the cam 52 to rotate to press or loosen the seat rod 1.

[0083] The number of support plates 50 can be multiple, and the cam 52 is located between any two of the multiple support plates 50, so that the multiple support plates 50 can disperse the reaction force from the seat rod 1 and the adjusting mechanism 4 and limit the deformation of the rotating shaft 51.

[0084] The rotating shaft 51 can be connected with a handle, so that the user can rotate the handle to drive the rotating shaft 51 to rotate to switch the active state or the fixed state of the seat rod 1.

[0085] The support plate 50 is arranged close to the positioning opening 20, so that the distance between the support plate 50 and the cam 52 is small, and the support plate 50 is subjected to a small rotating force from the cam 52, thereby reducing the risk of deformation and damage of the support plate 50. The rotating shaft 51 is rotatably arranged on the support plate 50, and the part of the rotating shaft 51 penetrating through the support plate 50 abuts against the support plate 50. The force applied to the rotating shaft 51 by the support plate 50 limits the self-rotation of the rotating shaft 51, so that the fixing effect of the special-shaped pipe locking and clamping mechanism on the seat pole 1 is stable. The rotating shaft 51 rotates to drive the cam 52 to rotate, so as to push the first adjusting assembly 40 to press or loosen the seat pole 1. The cam 52 applies a pushing force to the adjusting mechanism 4, so that the process of increasing or reducing the force applied to the seat pole 1 and the adjusting mechanism 4 is gradually and smoothly performed, thereby reducing the risk of impact on the seat pole 1 and the adjusting mechanism 4 due to the rapid change of the force applied thereto.

[0086] Although the present application has been described with reference to the preferred embodiments, various modifications can be made to it without departing from the scope of the application, and equivalent components can be substituted therefor. In particular, the technical features mentioned in each embodiment can be combined in any manner as long as there is no structural conflict. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A profiled tube locking and clamping mechanism, characterized in that, The utility model relates to a kind of positioning device, including: Standpipe, side wall is equipped with positioning mouth, seat pole is inserted in the standpipe with the lift; Positioning sleeve is arranged between the standpipe and the seat pole, the space between the seat pole and the inner wall of the positioning sleeve is movable cavity; Limiting seat is inserted into the positioning mouth, and limiting groove is arranged through, and the limiting groove is communicated with the movable cavity; Adjusting mechanism is arranged in the limiting groove and extends into the movable cavity; Pushing assembly is used to push the adjusting mechanism to move along the length direction of the limiting groove, and push the positioning sleeve to deform to tightly close or loosen the seat pole; Wherein, the inner wall of the limiting groove is in contact with the adjusting mechanism, and the positioning sleeve has deformation area, and the deformation area is opposite to the adjusting mechanism.

2. A profiled tube locking and clamping mechanism according to claim 1, characterized in that The adjusting mechanism includes a first adjusting assembly and a second adjusting assembly. The first adjusting assembly is arranged in the limiting groove and extends into the movable cavity. The first adjusting assembly is provided with a connecting hole. The second adjusting assembly includes a connecting rod. The connecting rod is adjustably connected with the connecting hole.

3. A profiled tube locking and clamping mechanism according to claim 2, wherein, The first adjusting assembly includes a pressing piece and a pressing ring. The connecting hole is arranged on the pressing piece. The pressing ring is connected to one end of the pressing piece facing the movable cavity. The axis of the connecting hole and the pressing ring is coaxial. The outer peripheral surface of the pressing ring exceeds the outer wall surface of the pressing piece.

4. A profiled tube locking and clamping mechanism according to claim 3, wherein, The projection of the pressing piece on the plane perpendicular to the length direction of the limiting groove is a polygon. The limiting groove is matched with the outer wall surface of the pressing piece.

5. A profiled tube locking and clamping mechanism according to claim 3, wherein, The limiting groove includes a first groove segment and a second groove segment. The second groove segment is closer to the movable cavity than the first groove segment. At least part of the pressing piece is located in the first groove segment. The pressing ring is located in the second groove segment. In the length direction of the limiting groove, the size of the pressing piece does not exceed the size of the first groove segment. The size of the pressing ring does not exceed the size of the second groove segment.

6. A profiled tube locking and clamping mechanism according to claim 5, wherein, The first adjusting assembly further includes a first elastic piece. The first elastic piece is arranged at one end of the pressing ring away from the pressing piece. The pressing ring is in contact with the positioning sleeve through the first elastic piece. The first elastic piece blocks the inner hole at the center of the pressing ring.

7. A profiled tube locking and clamping mechanism according to claim 6, wherein, The first elastic piece covers the outer peripheral surface of the pressing ring and is in contact with the inner wall of the second groove segment. In the length direction of the limiting groove, the size of the first elastic piece does not exceed the size of the second groove segment.

8. A profiled tube locking and clamping mechanism according to claim 6, wherein, The connecting hole is communicated with the inner hole at the center of the pressing ring. Part of the first elastic piece extends into the inner hole of the pressing ring.

9. A profiled tube locking and clamping mechanism according to claim 2, characterized in that The second adjusting assembly further includes a push cover. The push cover is located on the side of the limiting seat away from the movable cavity. The connecting rod is fixedly connected at the center of the push cover. In the plane perpendicular to the length direction of the limiting groove, the size of the push cover is greater than the size of the limiting groove.

10. A profiled tube locking and clamping mechanism according to claim 9, wherein, The second adjusting assembly further includes a second elastic piece. The second elastic piece is sleeved on the connecting rod. The two ends of the second elastic piece are in contact with the push cover and the first adjusting assembly respectively.

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