NL2034628B1

NL2034628B1 - Double-opening bicycle rack

Info

Publication number: NL2034628B1
Application number: NL2034628A
Authority: NL
Inventors: Tao Jianbo
Original assignee: Tao Jianbo
Priority date: 2022-04-19
Filing date: 2023-04-19
Publication date: 2024-02-16
Also published as: NL2034628A; WO2023202572A1; CN217672416U; DE212023000071U1; FR3134554A3

Abstract

The disclosure provides a double—opening bicycle rack which comprises a bearing rack and a ball head clamping portion. In this solution, the structure of the ball head clamping portion is redesigned, a hitch ball of a car enters a ring opening of a snap 5 ring; during rotation of a rotary rack I, a clamp portion is pushed to rotate so that a lower end thereof is lifted to be in fit with a corresponding ring opening wall to clamp a lower end portion of the hitch ball; and after the clamping is completed, the rotary rack I is fixed by a locking assembly, all of which 10 simplify the overall structure, facilitates the assembly and reduce the cost. (+ Fig. l)

Description

DOUBLE-OPENING BICYCLE RACK

TECHNICAL FIELD

The disclosure pertains to the technical field of bicycle racks, and specifically pertains to a double-opening bicycle rack.

BACKGROUND

In order to carry a bicycle conveniently, a bicycle rack is often mounted at the position of a car trunk. For example, a Chi- nese patent (application No. 2016102532134) discloses a bicycle rack connected with a hitch ball in which the bicycle rack is fixed to a car body by clamping and fixing the hitch ball with a ball head clamping portion. However, the ball head clamping por- tion has a complex structure and is relatively cumbersome to as- semble, which needs to be improved.

SUMMARY

In order to solve at least one of the technical defects de- scribed above, the disclosure provides the following technical so- lutions.

The application document discloses a double-opening bicycle rack which comprises a bearing rack and a ball head clamping por- tion; the ball head clamping portion comprises a snap ring, a ro- tary rack I, a clamp portion and a locking assembly; the snap ring is arranged on the bearing rack; and the rotary rack I is in run- ning fit with the snap ring and is connected with the snap ring or the bearing rack through the locking assembly when rotated to a predetermined position, so that the locking assembly locks the ro- tary rack I at an end position of a rotation stroke; the clamp portion is located in a ring opening of the snap ring and is in running fit with the snap ring; an upper end portion of the clamp portion is located on a rotating path of the rotary rack I; and the rotary rack I rotates relative to the snap ring and synchro- nously abuts against a corresponding position of the upper end of the clamp portion to rotate the clamp portion, and a lower end of the clamp portion and a corresponding ring wall of the snap ring form a clamping action.

In this solution, the structure of the ball head clamping portion is redesigned, a hitch ball of a car enters the ring open- ing of the snap ring; during rotation of the rotary rack II, the clamp portion is pushed to rotate so that the lower end thereof is lifted to be in fit with a corresponding ring opening wall to clamp a lower end portion of the hitch ball; and after the clamp- ing is completed, the rotary rack I is fixed by the locking assem- bly, all of which simplify the overall structure, facilitates the assembly and reduce the cost.

Further, the snap ring comprises a ring body and a fixing portion, the ring body is arranged on the fixing portion, a part of the fixing portion located below the ring body is fixed to the bearing rack, and the rotary rack I is hinged to a part of the fixing portion located above the ring body. Preferably, the ring body is integrally formed with the fixing portion so as to reduce assembly process, and the fixing portion can be fixed to the bear- ing rack by screws, welding or nesting.

Further, the part of the fixing portion located above the ring body is two end plates fixed at intervals, and the rotary rack I is hinged to the end plates; the clamp portion comprises a clamp body, a clamping plate and a push plate; the clamp body is fixed on the clamping plate and both sides of the clamping plate move along a guide groove provided on the ring wall of the ring body; the push plate is arranged at a top end of the clamp body, the push plate is located on the rotating path of the rotary rack

I, and a back face of the clamp body is in the shape of a circular arc and both sides of the circular arc face abut against the cor- responding end plates; and a transverse maximum distance between the both sides of the circular arc face is greater than a trans- verse distance between the two end plates. The clamp body abuts against the two end plates with the circular arc face on the back face, and in the process of moving the rotary rack I against the push plate, the structure of the circular arc surface against the end plates facilitates the rotation of the clamp body relative to the end plates, so that a lower portion of the clamp body is lift- ed up for clamping, and a reasonable layout is formed to facili- tate assembly and clamping.

Further, an upper portion of a front face of the clamp body is in the shape of a circular groove, a bottom end of the circular groove is provided with a notch, and a part of the clamping plate corresponding to the notch is in the shape of an arc groove. The circular groove corresponds to the hitch ball, and the notch is connected with a relatively thin column located below the hitch ball, which facilitate clamping.

Further, the rotary rack I comprises a handle, a baffle and a rack body; the handle is fixed on the baffle, the baffle is fixed on the rack body and the rack body is hinged with an upper portion of the snap ring, and the upper end portion of the clamp body is located on a moving path of the baffle. The handle is held to ap- ply a force to rotate, and the baffle abuts against the push plate to rotate the clamp body, so that a reasonable layout is formed to improve operating stability. According to the requirements, a con- vex column, a convex plate and the like can be formed on the back face of the baffle to abut against the push plate, fix the rack body, etc., resulting in more stable operation.

Further, the locking assembly comprises a lock member I and a lock member II, a plurality of teeth are provided on faces of the lock member I and the lock member II, the lock member I is ar- ranged on the rack body, the lock member II is arranged on the up- per portion of the snap ring, and during rotation of the rack body, the teeth on the lock member I and the lock member II are engaged to form locking. The locking is achieved by the engagement of the teeth on the two lock members, which facilitates locking and unlocking and use.

Further, the rack body comprises two mounting plates, a con- necting rod I and a rotating shaft; the two mounting plates are fixed to the baffle, and the two mounting plates are connected with the connecting rod I and the rotating shaft successively in a longitudinal direction; and the lock member I is arranged on the connecting rod I, the rotating shaft passes through a hole provid- ed on the upper portion of the snap ring to form hinging, and the upper end portion of the clamp portion abutting against the baffle is higher than the rotating shaft. The rack body structure facili- tates connection with the baffle, the snap ring, the lock members,

etc.

Further, the double-opening bicycle rack further comprises a rotary rack II and a locking assembly II, the rotary rack II is of a frame type, the ball head clamping portion is located in a frame opening of the rotary rack II, and the rotary rack II is hinged to the bearing rack and locks and unlocks rotation of the rotary rack

II through a locking mechanism. The rotary rack II is added to fa- cilitate adding of a head clamping mechanism on the rotary rack II and the like to connect and fix a bicycle, and the hinged struc- ture facilitates swinging of the second rotary rack to free up an opening space of a trunk.

Further, the rotary rack II comprises a frame-type rack rod and sleeves, two bottom ends of the rack rod are respectively in- serted into the corresponding sleeves, and the sleeves are hinged to the bearing rack; the locking mechanism comprises a lock body, a lock catch and clamping blocks; a lower end of the lock body is hinged to the bearing rack and a top end of the lock body is hinged with the lock catch; the clamping block is arranged on the corresponding sleeve, and the lock catch is rotated so that the lock catch is in fit with the clamping block to form locking; and a bump is provided on a face of the sleeve facing the lock body, and a clamping groove is provided in the middle of the lock body at a position corresponding to the bump. The frame-type structure facilitates mounting of the ball head clamping portion in the frame opening to rationally use space; the fit between the lock catch and the clamping block facilitates fixing of the rack rod to improve stability of the bicycle; the addition of the bump defines a rotation direction of the rack rod; and when the rack rod ro- tates along a front facing direction of the bump, the bump abuts against the bearing rack for limitation, or the bump abuts against the clamping groove of the lock body for secondary limiting. In use, the lock catch is rotated to initially unlock the rack rod, and the lock body is rotated to disengage the clamping groove from the bump for secondary unlocking, at this time, the rack rod can be rotated.

Further, the bearing rack comprises a main body, two connect- ing rods II and a fixing rod; the two connecting rods II are fixed on the main body at intervals and the fixing rod is located be- tween the two connecting rods II; the ball head clamping portion is arranged on the fixing rod, and the rotary rack II is fixed on the connecting rods II; and preferably, a mounting seat is provid- 5 ed on the connecting rod II, and two bottom ends of the rotary rack II are respectively hinged to the mounting seat of the corre- sponding connecting rod II. The main body, the connecting rods and the fixing rod constitute the bearing rack, facilitating connec- tion with the ball head clamping portion and the rotary rack II.

Compared with the prior art, the disclosure has the following beneficial effects: the disclosure redesigns such mechanisms as the ball head clamping portion, the rotary rack II and the like, which simplifies the structure and facilitates the assembly.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to illustrate the technical solutions of the embodi- ments of the disclosure more clearly, the accompanying drawings required for the description of the embodiments will be briefly introduced below. Apparently, the accompanying drawings in the following description are merely some rather than all embodiments of the disclosure, and a person of ordinary skill in the art may still derive other drawings from these accompanying drawings with- out creative efforts.

FIG. 1 is a structural schematic view of a double-opening bi- cycle rack according to Embodiment 1;

FIG. 2 is a structural schematic view of the double-opening bicycle rack according to Embodiment 1;

FIG. 3 is a structural schematic view of a ball head clamping portion;

FIG. 4 is a structural schematic view of the ball head clamp- ing portion;

FIG. 5 is a structural schematic view of the ball head clamp- ing portion in a profile state;

FIG. 6 is a structural schematic view of a fit between a lock member I and a lock member II;

FIG. 7 is a structural schematic view of a connection between a locking mechanism and a mounting seat;

FIG. 8 is a structural schematic view of the connection be-

tween the locking mechanism and the mounting seat in a profile state;

FIG. 9 is a structural schematic view of a sleeve;

FIG. 10 is a structural schematic view of a lock body; and

FIG. 11 is a structural schematic view of a lock catch.

Reference numerals in the drawings: 1. bearing rack; 2. rotary rack II; 3. ball head clamping portion; 4. clamping mechanism; 5. bicycle light; 6. locking mech- anism; 7. ball head clamping mechanism; 100. main body; 101. con- necting rod II; 102. fixing rod; 103. mounting seat; 200. rack rod; 201. sleeve; 300. handle; 301. fixing portion; 302. clamp body; 303. ring body; 304. retainer; 305. baffle; 306. push plate; 307. clamping plate; 308. rotating shaft; 309. connecting rod I; 310. end plate; 311. lock member II; 312. lock member I; 313. guide groove; 314. convex plate; 315. mounting plate; 316. notch; 601. sleeve; 602. lock catch; 603. lock body; 604. bump; 605. clamping block; 606. clamping groove; 607. embedding groove; and

A, B and C represent hinging positions.

DESCRIPTION OF THE EMBODIMENTS

The disclosure will be further described with reference to the accompanying drawings and specific embodiments.

Embodiment 1

As shown in FIGS. 1-11, the double-opening bicycle rack ac- cording to this embodiment comprises a bearing rack 1 and a ball head clamping portion 3. The bearing rack 1 is a split-type assem- bly structure, and the bearing rack 1 comprises a main body 100, two connecting rods II 101 and a fixing rod 102, the two connect- ing rods 101 are fixed on the main body 100 at intervals, and the arc-shaped fixing rod 102 is fixed between the two connecting rods 101. A commen clamping mechanism 4 is oppositely mounted on the main body 100 of the bearing rack, and wheels of a bicycle are fixed by the clamping mechanism 4. The clamping mechanism and the like will not be detailed here. There is no limitation on the shape of the main body which can be selected according to the principle and solution of this application. Only a frame-type main body is illustrated in this embodiment.

In this embodiment, the ball head clamping portion 3 is mounted on the fixing rod, and the ball head clamping portion 3 comprises a snap ring, a rotary rack I, a clamp portion and a locking assembly. The snap ring comprises a ring body 303 and a fixing portion 301, the ring body 303 is integrally formed with the fixing portion 301, and the ring body 303 is located at a mid- dle position of the fixing portion 301. The fixing portion and the fixing rod can be fixed by diversified means, and only a nested structure is illustrated in this embodiment, where a lower end of the fixing portion below the ring body is of a rectangular frame type, and the fixing rod 102 passes through frame openings on both sides. An upper end of the fixing portion 301 above the ring body 303 is two end plates 310 fixed at intervals.

The rotary rack I comprises a handle 300, a baffle 305 and a rack body, and a rectangular frame-type handle 300 is fixed on the baffle 305. In this embodiment, the rack body comprises two mount- ing plates 315, a connecting rod I 309 and a rotating shaft 308; and a back face of the baffle 305 protrudes outward to form a con- vex plate 314, one mounting plate 315 is fixed on the convex plate 314, and the connecting rod I 309 and the rotating shaft 308 are fixed successively from top to bottom between the two mounting plates 315; and the rotating shaft 308 passes through an opening on the two end plates 310 of the fixing portion 301, so that the rack body and the snap ring form hinging. Two bottom ends of the handle 300 can also be fixed to the baffle 305 by diversified means, such as welding, screw fixing, etc. In this embodiment, both sides of the baffle 305 are bent into an L shape, a reduced groove is formed between the bent portion and the adjacent mount- ing plate 315, and the two bottom ends of the handle 300 are em- bedded in the reduced groove for fixing.

The clamp portion comprises a clamp body 302, a clamping plate 307 and a push plate 306; the clamp body 302 is fixed on the clamping plate 307 and both sides of the clamping plate 307 move along a guide groove 313 formed on a ring wall of the ring body; the push plate 306 is fixed on a top end back face of the clamp body 302, and the push plate 306 is located on a rotation path of the baffle 305 in the rotary rack I; and the push plate 306 is lo- cated on the back face of the baffle 305 and is higher than the rotating shaft due to backward rotation of the handle. The clamp body 302 is approximately in a semi-spherical shape, a back face thereof is a circular arc face and a front face thereof is in a circular groove shape, a diameter of the sphere is greater than a transverse distance between the two end plates 310 at the upper end of the fixing portion, and both sides of the back face of the clamp body 302 abut against the corresponding end plates 310. The handle is held to rotate the baffle 305 backward, so that the baf- fle abuts against the push plate to move backward, and the arc face abuts against the end plates so as to facilitate rotation of the clamp body relative to the end plates, and the clamping plate 307 moves along the guide groove, so that a lower portion of the clamp body 302 is lifted up towards a ring opening wall of the op- posite ring body 303 to form a clamping action. Since a relatively thin column is located below a hitch ball, a notch 316 can be formed at the bottom of the circular groove of the clamp body 302, the notch is smaller than a diameter of the circular groove, and a face of the clamping plate 307 abutting against at the notch is also in the shape of a circular groove; and during clamping, the clamping plate and the notch of the clamp body are in fit with the ring opening wall to clamp the column below the hitch ball. In ad- dition, a retainer 304 can be fixed on the ring opening wall of the ring body corresponding to an upper portion of the clamp body 302, and the retainer is in fit with the circular groove of the clamp body to cover the hitch ball.

In this embodiment, the locking assembly comprises a lock member I 312 and a lock member II 311, where the lock member I 312 and the lock member II 311 are as shown in FIGS. 4-6, teeth are formed on a bottom surface of the lock member I 312 located above, and corresponding teeth are formed on a top surface of the lock member II 311 located below; the lock member I 312 is fixed on the connecting rod I 309 located between the two mounting plates 315; the lock member II 311 is fixed on the end plate 310 at the upper end of the fixing portion; and when the baffle rotates, the lock member I moves towards the lock member II, so that the teeth thereof engage with each other to form locking, and unlocking can be realized by lifting up the handle. A hook body can be formed on a tail end of the lock member I, and a first tooth on the corre- sponding lock member II protrudes upward to hook the hook body, so as to limit amplitude of the rotation.

In this embodiment, a rotary rack II and a locking mechanism 6 are added, the rotary rack II comprises a rectangular frame-type rack rod 200 and sleeves 201, and the ball head clamping portion 3 is located in a frame opening of the rack rod 200. Two bottom ends of the rack rod 200 are respectively inserted into the correspond- ing sleeves 201, a triangle-like mounting seat 103 is fixed on the connecting rod II 101 of the bearing rack, and the sleeves 201 are hinged in a groove at a top end of the mounting seat 103.

The locking mechanism 6 comprises a lock body 603, a lock catch 602 and clamping blocks 605; a lower end of the lock body 603 is hinged in the groove at the top end of the mounting seat 103, and a top end of the lock body 603 is hinged to the lock catch 602; and hinging positions of the lock body 603, the sleeves 201 and the lock catch 602 are shown as A, B and C in the figure, and the hinging position of the lock body 603 is opposite to the hinging position of the sleeves 201. Clamping blocks 605 are oppo- sitely formed on the sleeves 201, an embedding groove 607 is formed in a groove of the corresponding lock catch 602, and the lock catch is rotated so that the clamping block is embedded into the embedding groove for locking. In a rotation direction of the handle, a face of the sleeve 201 facing the lock body 603 pro- trudes outward to form a bump 604, a clamping groove 606 is formed in the middle of the lock body 603 at a position corresponding to the bump, and the bump extends into the clamping groove. The lock catch is rotated to disengage the clamping block from the embed- ding groove, and then the lock body is rotated to disengage the bump from the clamping groove, and at this time, the rack rod is turned backwards to free up an opening space of a trunk. A head clamping mechanism 7 can be mounted on a transverse rod body at a top end of the rack rod, and an inclined beam, a transverse beam portion and the like of the bicycle can be clamped by the head clamping mechanism. The head clamping mechanisms are common and will not be detailed here.

In addition, a bicycle light 5 may be mounted at a tail end of the main body 100 to alert rear vehicle, which is common on a bicycle rack and will not be detailed here.

In use, the ring opening of the bicycle rack corresponding to the hitch ball is pressed down, the handle is pulled and turned backwards to complete the clamping and fixing, at this time, the rack is fixed at a tail end of car, the bicycle can be placed on the main body, the wheels can be fixed by the clamping mechanism, and the inclined beam and the transverse beam can be fixed by the head clamping mechanism.

The above are merely preferred embodiments of the disclosure and are not intended to limit the scope of the disclosure, and all technical solutions under the idea of the disclosure fall within the scope of the disclosure. It should be noted that a person of ordinary skill in the art may make several improvements and modi- fications without departing from the principle of the disclosure and the improvements and modifications shall fall within the scope of the disclosure.

Claims

CONCLUSIONS

A double opening bicycle carrier comprising a carrying rack and a ball head clamp part, wherein the ball head clamp part comprises a locking ring, a rotatable rack I, a clamp part and a locking assembly; the retaining ring is mounted on the carrying rack; and the rotating rack I is in running fit with the locking ring and is connected to the locking ring or support rack by the latch assembly when rotated to a predetermined position, such that the locking assembly locks the rotating rack I in an end position of a rotational stroke; the clamping portion is located in a ring opening of the retaining ring and runs in a running fit with the retaining ring; an upper end portion of the clamping portion is located on a rotating path of the rotatable rack I; and the rotatable rack I rotates with respect to the retaining ring and synchronously abuts a corresponding position of the upper end of the clamping portion to rotate the clamping portion, and a lower end of the clamping portion and a corresponding ring wall of the retaining ring form a clamping effect.

2. Bicycle carrier with double opening according to claim 1, wherein the locking ring comprises a ring body and a mounting part, the ring body is mounted on the mounting part, a part of the mounting part located under the ring body is attached to the carrying rack, and the rotatable rack I is hinged connected to a part of the mounting section located above the ring body.

A double opening bicycle carrier according to claim 2, wherein the part of the mounting portion located above the ring body consists of two end plates attached at intervals, and wherein the rotatable rack I is hinged to the end plates; the clamping part comprises a clamping body, a clamping plate and a pushing plate; the clamping body is secured to the clamping plate and both sides of the clamping plate move along a guide groove provided on the ring wall of the ring body; the push plate is arranged at an upper end of the clamp body, the push plate is located on the rotating path of the rotatable rack I, and a rear surface of the clamp body is in the shape of a circular arc and both sides of the circular arc lie flat against the corresponding end plates; and a transverse maximum distance between the two sides of the circular arc plane is greater than a transverse distance between the two end plates.

The double opening bicycle carrier of claim 3, wherein an upper portion of a front surface of the clamp body is in the shape of a circular groove, a lower end of the circular groove is provided with a notch, and a portion of the clamp plate corresponding to the notch has the shape of an arc groove.

The double opening bicycle carrier of claim 1, wherein the rotatable rack I includes a handle, a bulkhead and a rack body; the handle is mounted on the bulkhead, the bulkhead is mounted on the rack body and the rack body is hinged with an upper portion of the retaining ring, and the upper end portion of the clamp body is on a moving path of the bulkhead.

6. Double opening bicycle carrier according to claim 5, wherein the locking assembly comprises a lock part I and a lock part II, a plurality of teeth are provided on surfaces of the lock part TI and the lock part II, the lock part I is arranged on the rack body, the lock part II is mounted on the upper part of the retaining ring, and during rotation of the rack body, the teeth on the lock part I and the lock part II are engaged to form lock.

A double opening bicycle carrier according to claim 6, wherein the rack body comprises two mounting plates, a connecting rod I and a rotating shaft; the two mounting plates are attached to the bulkhead, and the two mounting plates are successively connected longitudinally to the connecting rod I and the rotating shaft; and the lock part I is mounted on the connecting rod I, the rotating shaft passes through a hole in the upper part of the retaining ring to form hinges, and the upper end part of the clamping part abutting the bulkhead is higher than the rotating ash.

The dual opening bicycle carrier of claim 1, further comprising a swivel rack II and a lock assembly II, wherein the swivel rack II is of a frame type, wherein the ball head clamp portion is located in a frame opening of the swivel rack II, and the swivel rack II is hinged to the carrying rack and locks and unlocks the rotation of the rotating rack II by means of a locking mechanism.

A double opening bicycle carrier according to claim 8, wherein the rotatable rack II comprises a frame-shaped rack bar and sleeves, two lower ends of the rack rod are respectively inserted into the corresponding sleeves and the sleeves are hinged to the rack; the locking mechanism includes a lock body, a lock latch and clamp blocks; a lower end of the lock body is hingedly connected to the support rack and an upper end of the lock body is hingedly connected to the lock latch; the clamp block is fitted to the corresponding sleeve, and the lock latch is rotated so that the latch fits into the clamp block to form a lock; and a bump is provided on a surface of the sleeve facing the lock body, and a clamping groove is provided in the center of the lock body at a position corresponding to the bump.

A double opening bicycle carrier according to claim 8, wherein the carrier rack comprises a main body, two connecting rods II and a mounting rod; the two connecting rods II are fixed to the main body at intervals, and the mounting rod is between the two connecting rods II; the ball head clamping portion is mounted on the mounting rod and the rotating rack II is mounted on the connecting rods II; and preferably a mounting seat is provided on the connecting rod II, and its two lower ends of the rotatable rack II are respectively hinged to the mounting seat of the corresponding connecting rod II.