CN211685482U

CN211685482U - Trailer wheel axle support

Info

Publication number: CN211685482U
Application number: CN202020187129.9U
Authority: CN
Inventors: 江礼定
Original assignee: Jiaxing Tuguan Automobile Safety Seat Co ltd
Current assignee: Jiaxing Tuguan Automobile Safety Seat Co ltd
Priority date: 2020-02-20
Filing date: 2020-02-20
Publication date: 2020-10-16
Anticipated expiration: 2030-02-20

Abstract

The utility model relates to a bicycle trailer technical field, the utility model discloses a technical scheme does: a trailer wheel shaft bracket comprises a bracket main body, wherein the bracket main body is of an integrally formed structure, the bracket main body is fixedly connected with a trailer frame, an eccentric through hole penetrates through the middle part of the bracket main body, and the upper end and the lower end of the bracket main body are provided with hoops; the outer side of the bracket main body is a vertical plane, the inner side of the bracket main body is a section, and the middle part of the section is provided with a limit groove; the wheel shaft sleeve passes through the eccentric through hole and is tightly connected with the locknut. The utility model discloses a support has simple structure, and the specification is adjustable, easily installs, and scalability is strong characteristics can promote the stability when bicycle trailer uses, has also reduced the cost of transportation.

Description

Trailer wheel axle support

Technical Field

The utility model relates to a bicycle trailer technical field especially involves a trailer shaft support.

Background

Most of the existing bicycle trailer frames in the market adopt an integral structure, wheels are directly connected with frame steel pipes, the gravity center of a bicycle body is often higher, and the stability in the using process is poor; but if the center of gravity is lowered by reducing the size of the wheels, the passing and comfort of the trailer is further visualized.

Moreover, the main export of bicycle trailer is many, if adopt the wheel directly to be connected with the frame steel pipe, can lead to the vanning size of trailer too big, vanning density when reducing long-distance transport, and cost of transportation improves greatly.

The reference "2172154742.9" proposes a push-pull cart for bicycle, which comprises a main frame, a rear wheel set located at the rear side of the bottom of the main frame, a foldable upper frame hinged above the main frame, and a front wheel set or a towing rod set mounted at the front side of the bottom of the main frame by quick disassembly; the front side of the bottom of the main frame is provided with a front wheel set to form a bicycle cart; the front side of the bottom of the main body frame is provided with a towing rod group to form a bicycle trailer; the front side is provided with a front wheel set and a drag rod set which can be rapidly replaced. The rear wheel is arranged at the position of a rear wheel cross frame pipe, and although the rear wheel is convenient to disassemble and assemble quickly, the frame of the bicycle is large in size and low in packing density.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a structure that can conveniently and flexibly adjust the gravity center height of an automobile body and can reduce the packing size of a trailer under the premise of not destroying the design of the frame and wheels of the existing bicycle trailer.

The above technical purpose of the utility model is realized with following technical scheme:

a trailer wheel shaft bracket comprises a bracket main body, wherein the bracket main body is of an integrally formed structure, the bracket main body is fixedly connected with a trailer frame, an eccentric through hole penetrates through the middle part of the bracket main body, and the upper end and the lower end of the bracket main body are provided with hoops; the outer side of the bracket main body is a vertical plane, the inner side of the bracket main body is a section, and the middle part of the section is provided with a limit groove; the wheel shaft sleeve passes through the eccentric through hole and is tightly connected with the locknut.

The utility model discloses a further set up to: the wheel shaft sleeve is a T-shaped head hollow bolt, the T-shaped head of the wheel shaft sleeve is positioned in the limiting groove, and the quick-release wheel shaft penetrates through the wheel shaft sleeve and is fixed; the locknut is in close contact with the vertical plane.

The utility model discloses a further set up to: the trailer frame's both sides have the mounting bracket, the mounting bracket includes two root circles pipes that the longitudinal symmetry set up and two U-shaped pipes that the bilateral symmetry set up, the top and the bottom of section bar section contact with two root circles pipes respectively.

The utility model discloses a further set up to: two positioning holes I penetrate through the round pipe of the trailer frame, a positioning hole II penetrates through the clamp at the position corresponding to the positioning holes I, and the clamp is fixed on the trailer frame through bolts or rivets, so that the support main body is fixed on the trailer frame.

The utility model discloses a further set up to: the section bar section is "concave" style of calligraphy structure, the section bar section includes section bar hypomere, section bar middle section and section bar upper segment from supreme down in proper order, the medial surface of section bar hypomere with vertical plane is parallel arrangement, the medial surface of section bar upper segment with vertical plane is the slope setting, the spacing groove is located the section bar middle section.

The utility model discloses a further set up to: the section bar is characterized in that a first reinforcing rib is vertically arranged in the upper section of the section bar, a second reinforcing rib is vertically arranged in the lower section of the section bar, and a mounting hole is formed in the middle of the second reinforcing rib.

The utility model discloses a further set up to: the contact surface between the hoop positioned at the upper end and the upper section of the section bar is in an arc structure, and the contact surface between the hoop positioned at the lower end and the lower section of the section bar is also in an arc structure.

To sum up, the utility model discloses following beneficial effect has:

the eccentric through hole of the utility model is used for fixing and supporting the axle of the rear wheel vehicle, and the position of the eccentric through hole can be set according to the specific performance requirement of the bicycle trailer, so as to achieve the purposes of adjusting the gravity center height of the bicycle body and increasing the overall stability of the bicycle trailer;

the utility model has two clamps which can be fixed on the annular pipe frame of the bicycle trailer in various ways;

thirdly, the outer side surface of the bracket main body of the utility model is a vertical plane which can be used for installing customized components to realize the functions of additional shock absorption, braking, turning stability improvement and the like;

the bracket of the utility model is used as an extension of the frame part of the bicycle trailer, has the characteristic of easy installation, can be detached during the boxing transportation, and reduces the boxing size compared with the traditional integrally formed frame;

the bracket of the utility model has the characteristics of simple structure, adjustable specification, easy installation and strong expandability, can improve the stability of the bicycle trailer during use, simultaneously improves the packing density and reduces the transportation cost;

sixthly, the top and the bottom of the section bar section of the utility model are respectively contacted with two round pipes, which is convenient for the installation of the connecting piece and the trailer frame and also improves the installation stability;

seventh, the bracket of the utility model can be applied to bicycle trailers (trailers comprise trailer trucks, children trailers and pet trailers) and dual-purpose vehicles for pulling and pushing with annular pipe racks;

eighthly, the utility model discloses a section bar section is still convenient for carry out follow-up transformation to the mounting hole of second strengthening rib department can be convenient for carry the annex, can carry out the carry with the help of the bolt when necessary.

Drawings

Fig. 1 is a first schematic structural diagram of the present invention.

Fig. 2 is a schematic structural diagram of the present invention.

Fig. 3 is a schematic view of the overall structure of the present invention.

Fig. 4 is an installation schematic diagram of the present invention.

Fig. 5 is a schematic view of the installation effect of the present invention.

Fig. 6 is a schematic view of the wheel axle structure of the present invention.

Fig. 7 is a schematic view of the installation effect of the present invention.

The corresponding part names indicated by the numbers and letters in the drawings:

wherein: 1. a stent body; 2. a trailer frame; 3. an eccentric through hole; 4. clamping a hoop; 5. a section bar section; 6. a vertical plane; 7. a limiting groove; 8. a wheel axle sleeve; 9. a locknut; 10. a first positioning hole; 11. a second positioning hole; 51. a lower section of the profile; 52. a section bar middle section; 53. an upper section of the profile; 54. a first reinforcing rib; 55. a second reinforcing rib; 56. and (7) installing holes.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention will be further described with reference to the drawings and the specific embodiments.

With reference to fig. 1 to 7, the trailer axle bracket provided by the present invention comprises a bracket main body 1, wherein the bracket main body 1 is an integrally formed structure, the bracket main body 1 is fastened and connected with a trailer frame 2, an eccentric through hole 3 penetrates through the middle part of the bracket main body 1, and the upper and lower ends of the bracket main body 1 are provided with clamps 4; the outer side of the bracket main body 1 is a vertical plane 6, the inner side of the bracket main body 1 is a section 5, and the middle part of the section 5 is provided with a limiting groove 7; the wheel axle sleeve 8 passes through the eccentric through hole 3 and is tightly connected with the locknut 9.

By adopting the technical scheme: buckling and installing the hoops 4 at the upper end and the lower end of the bracket main body 1 to the trailer frame 2 and fixing the hoops by using bolts, then locating the T-shaped head end of the wheel shaft sleeve 8 in the limiting groove 7 for limiting, and then enabling the threaded end of the wheel shaft sleeve 8 to penetrate through the eccentric through hole 3 and extend to the outer side of the vertical plane 6 so as to be fixedly connected with the locknut 9; vertical plane 6 is located the one side that is close to the trailer wheel, can be used to follow-up additional installation customization subassembly to realize functions such as extra shock attenuation, brake, promotion turning stability.

Referring to fig. 2 to 4, the wheel axle sleeve 8 is a T-shaped head hollow bolt, the T-shaped head of the wheel axle sleeve 8 is located in the limiting groove 7, and the quick release axle penetrates through the wheel axle sleeve 8 and is fixed; the locknut 9 is in close contact with the vertical plane 6.

By adopting the technical scheme: the wheel shaft sleeve 8 is a T-shaped head hollow bolt, the limiting groove 7 is a square groove, and the T-shaped head end of the wheel shaft sleeve 8 is positioned in the limiting groove 8, so that the wheel shaft sleeve cannot shake or shift, and the mounting stability is effectively improved; it should be noted that, as shown in fig. 6 and 7, when the trailer is assembled, the assembly can be completed only by passing the wheel axle through the T-head hollow bolt and fixing, and preferably, the wheel axle is a quick-release wheel axle, which is convenient to detach, repair and replace.

Referring to fig. 1 to 5, the trailer frame 2 has two mounting brackets on two sides thereof, the mounting brackets include two circular tubes disposed in an up-down symmetrical manner and two U-shaped tubes disposed in a left-right symmetrical manner, and the top and bottom of the section bar 5 are in contact with the two circular tubes respectively.

Notably, the trailer frame 2 is an annular tube frame.

By adopting the technical scheme: the bracket main body 1 is arranged at the position of the trailer frame 2 through the first positioning hole 10 and the second positioning hole 11, so that the mounting stability of the bracket main body 11 can be ensured; the top and the bottom of the section bar section 5 are respectively contacted with the two round pipes, so that the mounting stability of the connecting piece main body 1 and the trailer frame 2 can be further ensured, the connecting piece main body 1 is further ensured to be tightly contacted with the trailer frame 2, the shaking is prevented, and the stability is improved; it is worth noting that section bar upper segment 53 is equipped with the arc wall to the indent in one side near the pipe, section bar hypomere 51 is equipped with the arc wall also to the inboard indent in one side near the pipe, because the shape of pipe itself, the setting of arc wall has improved the suitability, simultaneously, also need use some strength with support main part 1 propelling movement, after support main part 1 propelling movement entered, the arc wall also can prevent to a certain extent that support main part 1 from droing, the follow-up installation of being convenient for.

Referring to fig. 5, two positioning holes i 10 penetrate through a circular tube of the trailer frame 2, a positioning hole ii 11 penetrates through the clamp 4 at a position corresponding to the positioning hole i 10, and the clamp 4 is fixed to the trailer frame 2 through a bolt or a rivet so as to fix the bracket body 1 to the trailer frame 2.

By adopting the technical scheme: the locating hole one 10 with the locating hole two 11 suits, the clamp 4 with trailer frame 2 suits to be convenient for support subject 1 is fixed in trailer frame 2 department, guarantees the stability of support subject 1 installation, has also guaranteed the stability of trailer rear wheel installation.

Referring to fig. 4, the profile section 5 is a concave structure, the profile section 5 sequentially includes a lower profile section 51, a middle profile section 52 and an upper profile section 53 from bottom to top, an inner side surface of the lower profile section 51 is parallel to the vertical plane 6, an inner side surface of the upper profile section 53 is inclined to the vertical plane 6, and the limiting groove 7 is located in the middle profile section 52; a first reinforcing rib 54 is vertically arranged inside the upper section 53 of the profile, a second reinforcing rib 55 is vertically arranged inside the lower section 51 of the profile, and a mounting hole 56 is arranged in the middle of the second reinforcing rib 55.

It is noted that a first through hole penetrates through the middle of the middle section 52 of the profile, a second through hole penetrates through the middle of the vertical plane 6, and the first through hole and the second through hole form an eccentric through hole 3.

By adopting the technical scheme: the inside of section bar hypomere 51 with section bar upper segment 53 all sets up the strengthening rib and can strengthen the bulk strength of section bar section 5, the medial surface and the vertical plane 6 of section bar hypomere 51 are parallel arrangement and can be convenient for follow-up transformation, the middle part of second strengthening rib 55 has mounting hole 56 and is convenient for follow-up annex carry.

The contact surface between the hoop 4 at the upper end and the upper section 53 of the section bar is in an arc structure, and the contact surface between the hoop 4 at the lower end and the lower section 51 of the section bar is also in an arc structure in combination with fig. 1 to 4.

By adopting the technical scheme: the contact surfaces of the hoop 4 and the upper section 53 of the section bar and the contact surfaces of the hoop 4 and the lower section 51 of the section bar are arranged in an arc structure and are just matched with the outer wall of the circular pipe, so that the hoop 4 and the circular pipe are connected more tightly; it is worth noting that the clamp 4 is arc-shaped, so that the clamp 4 is tightly connected with a circular tube.

With reference to fig. 1 to 7, the present trailer axle bracket is an integrally formed metal section, and has through holes of different sizes on its side, so that the trailer axle bracket can be easily assembled and disassembled, and the trailer axle bracket can save production cost to a great extent.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The trailer wheel shaft support is characterized by comprising a support main body (1), wherein the support main body (1) is of an integrally formed structure, the support main body (1) is fixedly connected with a trailer frame (2), an eccentric through hole (3) penetrates through the middle of the support main body (1), and the upper end and the lower end of the support main body (1) are provided with clamps (4); the outer side of the bracket main body (1) is provided with a vertical plane (6), the inner side of the bracket main body (1) is provided with a section (5), and the middle part of the section (5) is provided with a limiting groove (7); the wheel shaft sleeve (8) penetrates through the eccentric through hole (3) and is tightly connected with the locknut (9).

2. A trailer axle bracket as claimed in claim 1, wherein: the wheel axle sleeve (8) is a T-shaped head hollow bolt, the T-shaped head of the wheel axle sleeve (8) is positioned in the limiting groove (7), and the quick-release wheel axle penetrates through the wheel axle sleeve (8) and is fixed; the locknut (9) is in close contact with the vertical plane (6).

3. A trailer axle bracket as claimed in claim 1, wherein: the two sides of the trailer frame (2) are provided with mounting racks, each mounting rack comprises two round tubes which are arranged in an up-down symmetrical mode and two U-shaped tubes which are arranged in a left-right symmetrical mode, and the top and the bottom of each section bar section (5) are respectively contacted with the two round tubes.

4. A trailer axle bracket as claimed in claim 3, wherein: two positioning holes I (10) are arranged at the position of a circular tube of the trailer frame (2) in a penetrating mode, a positioning hole II (11) is arranged at the position, corresponding to the positioning holes I (10), of the clamp (4) in a penetrating mode, and the clamp (4) is fixed to the trailer frame (2) through bolts or rivets, so that the support main body (1) is fixed to the trailer frame (2).

5. A trailer axle bracket as claimed in claim 1, wherein: section bar section (5) are "concave" style of calligraphy structure, section bar section (5) include section bar hypomere (51), section bar middle section (52) and section bar upper segment (53) from bottom to top in proper order, the medial surface of section bar hypomere (51) with vertical plane (6) are parallel arrangement, the medial surface of section bar upper segment (53) with vertical plane (6) are the slope setting, spacing groove (7) are located section bar middle section (52).

6. A trailer axle bracket as claimed in claim 5, wherein: a first reinforcing rib (54) is vertically arranged in the upper section (53) of the sectional material, a second reinforcing rib (55) is vertically arranged in the lower section (51) of the sectional material, and a mounting hole (56) is formed in the middle of the second reinforcing rib (55).

7. A trailer axle bracket as claimed in claim 1, wherein: the contact surface of the hoop (4) positioned at the upper end and the upper section (53) of the section bar is in an arc structure, and the contact surface of the hoop (4) positioned at the lower end and the lower section (51) of the section bar is also in an arc structure.