Vertical spare tire fixing frame of low-flatbed semitrailer

Abstract

A vertical spare tire fixing frame of a low flatbed semitrailer comprises a spare tire fixing plate, a suspender frame, a spare tire hoisting mechanism and a spare tire supporting structure. The spare tire fixing plate is detachably installed on the top of an upper wing plate of a semitrailer gooseneck girder, stands on the outer edge of the upper wing plate of the semitrailer gooseneck girder and is used for installing and fixing a spare tire. The suspender frame is detachably, vertically and rotatably installed on the outer side of the front end of the semitrailer gooseneck girder, and the top of the suspender frame is of a cantilever structure higher than the spare tire fixing plate. The spare tire hoisting mechanism is arranged on the cantilever structure and is used for hoisting a spare tire; the spare tire supporting structure is installed on the outer side of a web of the semitrailer gooseneck girder, located below the outer side of the spare tire fixing plate and used for supporting a spare tire. According to the utility model, the spare tire can be fixedly arranged at the gooseneck girder part of the semitrailer, does not occupy extra vehicle loading space and position, is detachable and saves the marine transportation cost.

Description

Technical Field

[0001] The utility model relates to the technical field of semi-trailers, specifically, it relates to a vertical spare tire fixing bracket for a low-bed semi-trailer. Background Technique

[0002] At present, the fixing method of the spare tire of the semi-trailer mostly adopts a flat structure, which requires sufficient space to be reserved on the frame part to place the spare tire. For a low-bed semi-trailer, due to the limitation of the characteristic of the low load-bearing surface height, it is very difficult to reserve sufficient space to place the spare tire. In addition, it is not suitable to reserve space for installing the spare tire on the load-bearing surface of the rear frame of the low-bed semi-trailer and below the load-bearing surfaces on both sides of the frame. And the gooseneck part connected to the tractor is usually not used as a load-bearing part. Therefore, it is necessary to design a new type of vertical spare tire fixing bracket device for the low-bed semi-trailer to meet the need of placing the vehicle spare tire.

[0003] In order to solve the above problems, people have been seeking an ideal technical solution. Summary of the Invention

[0004] The purpose of the utility model is to aim at the deficiencies of the prior art, and thus provide a vertical spare tire fixing bracket for a low-bed semi-trailer. The utility model can install and fix the spare tire on the gooseneck girder part of the semi-trailer, without occupying additional vehicle loading space and position, and it is detachable, saving the sea freight cost.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is: a vertical spare tire fixing bracket for a low-bed semi-trailer, including a spare tire fixing plate, a boom bracket, a spare tire lifting mechanism and a spare tire supporting structure;

[0006] The spare tire fixing plate is detachably installed on the top of the upper wing plate of the gooseneck girder of the semi-trailer and stands on the outer edge of the upper wing plate of the gooseneck girder of the semi-trailer, and is used for installing and fixing the spare tire;

[0007] The boom bracket is detachably and vertically rotatably installed on the outside of the front end of the gooseneck girder of the semi-trailer, and the top of the boom bracket is a cantilever structure higher than the spare tire fixing plate;

[0008] The spare tire lifting mechanism is arranged on the cantilever structure and is used for lifting the spare tire;

[0009] The spare tire supporting structure is installed on the outside of the web of the gooseneck girder of the semi-trailer and is located below the outside of the spare tire fixing plate, and is used for supporting the spare tire.

[0010] Based on the above, two fixed angle irons are welded on the upper surface of the upper wing plate of the semi-trailer gooseneck girder, and the two fixed angle irons are arranged at intervals front and back. The distance between the vertical side plates of the two fixed angle irons is greater than or equal to the front-back dimension of the spare tire fixing plate. The spare tire fixing plate is placed between the two fixed angle irons and is connected to the two fixed angle irons by bolts respectively. The bottom of the spare tire fixing plate is supported on the upper surface of the upper wing plate of the semi-trailer gooseneck girder. The spare tire fixing plate is aligned with the outer edge of the upper wing plate of the semi-trailer gooseneck girder. A plurality of runway-shaped long holes are vertically formed on the spare tire fixing plate at intervals front and back and are used for installing and fixing the spare tire.

[0011] Based on the above, the boom support includes a rotating riser pipe. A horizontally arranged and cantilevered lifting pipe is welded to the upper end of the rotating riser pipe. The lifting pipe is the above-mentioned cantilever structure. A reinforcing rib plate is welded between the adjacent ends of the lifting pipe and the rotating riser pipe. A lifting ring is fixedly arranged at one end of the lifting pipe far from the rotating riser pipe. A fixed pipe shaft with an open upper end and a closed lower end is vertically and fixedly installed on the outer side of the front end of the semi-trailer gooseneck girder. The lower side of the rotating riser pipe is coaxially inserted and rotated in the fixed pipe shaft. When the lifting pipe rotates horizontally backward with the rotating riser pipe to be parallel to the semi-trailer gooseneck girder, the lifting ring rotates to directly above the spare tire supporting structure.

[0012] Based on the above, the spare tire lifting mechanism includes a chain electric hoist, and the chain electric hoist is hooked on the lifting ring.

[0013] Based on the above, two spare tire supporting structures are arranged symmetrically about the center of the spare tire fixing plate in the front and back. The front spare tire supporting structure includes a support plate and a bracket. The bracket is arranged outside the web of the semi-trailer gooseneck girder and below the front side of the spare tire fixing plate. The bracket is welded on the upper surface of the lower wing plate of the semi-trailer gooseneck girder. The support plate is welded on the bracket in a front-high and rear-low inclined manner and is lower than the spare tire fixing plate.

[0014] The utility model has substantial features and progress compared with the prior art. Specifically, the beneficial effects of the utility model are as follows:

[0015] (1) A plurality of runway-shaped long holes are arranged on the spare tire fixing plate, which can meet the installation and fixation of spare tires with different specifications of rims, and enable the spare tire to be installed on the semi-trailer gooseneck girder part and stand outside the semi-trailer gooseneck girder, without occupying additional vehicle loading space and position, and can meet the vehicle loading space, so that the vehicle loading space is maximally utilized;

[0016] (2) The spare tire fixing plate and the fixed angle iron are assembled and connected by bolts to achieve the purpose of being detachable. When the semi-trailer does not install a spare tire, the spare tire fixing plate can be removed, which does not occupy the height space of the semi-trailer gooseneck girder, and at the same time can also save a part of the sea freight cost;

[0017] (3) The spare tire supporting structure serves the purpose of lifting the spare tire during the lifting process and supporting the spare tire after the spare tire is installed, which is convenient for installing and positioning the spare tire and facilitating the installation of bolts between the rim and the spare tire fixing plate.

[0018] (4) The boom support can be detachably and vertically rotatably installed on the outer side of the front end of the gooseneck girder of the semi-trailer. When in use, the rotating vertical pipe is inserted and rotated in the fixed pipe shaft, and the rotating vertical pipe can rotate flexibly to adjust the position of the suspended pipe, and then flexibly adjust the position of the spare tire lifting mechanism, which is convenient for the spare tire lifting mechanism to lift the spare tire. The lifting hook of the spare tire lifting mechanism directly hooks the rim of the spare tire, and the spare tire can be easily hoisted to a suitable position. When not in use, the rotating vertical pipe can be pulled out from the fixed pipe shaft, so that the boom support is convenient to disassemble and does not occupy too much space.

[0019] In summary, the utility model can install and fix the spare tire on the gooseneck girder of the semi-trailer, without occupying additional vehicle loading space and position, and is detachable, saving the sea freight cost. Description of the Drawings

[0020] Figure 1 is a schematic structural view of the utility model.

[0021] Figure 2 is a schematic view of installing and fixing the spare tire of the utility model.

[0022] Figure 3 is a schematic view of the installation of the utility model on the semi-trailer.

[0023] In the figure: 1. Spare tire fixing plate; 2. Gooseneck girder of the semi-trailer; 3. Spare tire; 4. Fixed angle iron; 5. Runway-shaped long hole; 6. Rotating vertical pipe; 7. Suspended pipe; 8. Reinforcing rib plate; 9. Suspension ring; 10. Fixed pipe shaft; 11. U-shaped fixing plate; 12. Chain electric hoist; 13. Support plate; 14. Bracket. Specific Embodiments

[0024] The technical solutions of the present utility model will be further described in detail below through specific embodiments.

[0025] As Figures 1-3 shown, a vertical spare tire fixing rack for a low-bed semi-trailer includes a spare tire fixing plate 1, a boom support, a spare tire lifting mechanism and a spare tire supporting structure;

[0026] The spare tire fixing plate 1 is detachably installed on the top of the upper wing plate of the gooseneck girder 2 of the semi-trailer and stands on the outer edge of the upper wing plate of the gooseneck girder 2 for installing and fixing the spare tire 3;

[0027] The boom support is detachably and vertically rotatably installed on the outer side of the front end of the gooseneck girder 2 of the semi-trailer, and the top of the boom support is a cantilever structure higher than the spare tire fixing plate 1;

[0028] The spare tire lifting mechanism is arranged on the cantilever structure for lifting the spare tire 3;

[0029] The spare tire support structure is installed on the outer side of the web of the gooseneck girder 2 of the semi-trailer and below the outer side of the spare tire fixing plate 1 for lifting the spare tire 3.

[0030] In this embodiment, two fixed angle irons 4 are welded on the upper surface of the upper wing plate of the gooseneck girder 2 of the semi-trailer and are arranged at intervals front and back. The fixed angle irons 4 are arranged in the left-right direction. The distance between the vertical side plates of the two fixed angle irons 4 is greater than or equal to the front-back dimension of the spare tire fixing plate 1. The spare tire fixing plate 1 is placed between the two fixed angle irons 4. The spare tire fixing plate 1 is a channel-shaped plate with openings on the upper side, lower side and inner side. A plurality of first bolt fixing holes are provided at the lower sides of the front side plate and the rear side plate of the spare tire fixing plate 1. A plurality of second bolt fixing holes corresponding to each of the first bolt fixing holes one by one are provided on the vertical side plates of the fixed angle irons 4. The front side plate of the spare tire fixing plate 1 is attached to the vertical side plate of the front fixed angle iron 4 and is connected by bolts passing through the corresponding first bolt fixing holes and second bolt fixing holes. The rear side plate of the spare tire fixing plate 1 is attached to the vertical side plate of the rear fixed angle iron 4 and is connected by bolts passing through the corresponding first bolt fixing holes and second bolt fixing holes. In this way, the spare tire fixing plate 1 is convenient to disassemble. When not in use, the spare tire fixing plate 1 is removed, which does not occupy the height space of the gooseneck girder 2 of the semi-trailer, can reduce the sea freight (usually the semi-trailer is charged by volume for sea transportation), and saves the sea transportation cost. The bottom of the spare tire fixing plate 1 supports on the upper surface of the upper wing plate of the gooseneck girder 2 of the semi-trailer. The outer side plate of the spare tire fixing plate 1 is aligned with the outer edge of the upper wing plate of the gooseneck girder 2 of the semi-trailer. Four runway-shaped long holes 5 for installing and fixing the spare tire 3 are vertically provided on the outer side plate of the spare tire fixing plate 1 and are arranged at intervals front and back. Among them, the two middle runway-shaped long holes 5 are arranged symmetrically front and back, and the frontmost and the rearmost runway-shaped long holes 5 are arranged symmetrically front and back, so as to install and fix the spare tires 3 with different specifications of rims, so that the spare tire 3 can be installed on the gooseneck girder 2 of the semi-trailer and stand outside the gooseneck girder 2 of the semi-trailer, without occupying additional vehicle loading space and position, and can meet the vehicle loading space, maximizing the use of the vehicle loading space.

[0031] In this embodiment, the boom support includes a rotating riser 6. A horizontally arranged and cantilevered pipe 7 is welded to the upper end of the rotating riser 6. The pipe 7 is the aforementioned cantilever structure. A reinforcing rib plate 8 is welded between the adjacent ends of the pipe 7 and the rotating riser 6. A lifting ring 9 is fixedly arranged at the end of the pipe 7 far from the rotating riser 6. A fixed pipe shaft 10 with an open upper end and a closed lower end is vertically and fixedly installed on the outer side of the front end of the semi-trailer gooseneck girder 2. The lower side of the rotating riser 6 is coaxially inserted and rotatably arranged in the fixed pipe shaft 10. When the pipe 7 rotates horizontally backward with the rotating riser 6 to be parallel to the semi-trailer gooseneck girder 2, the lifting ring 9 rotates to directly above the spare tire support structure. Among them, in this embodiment, the fixed pipe shaft 10 is clamped by several U-shaped fixing plates 11 and then welded to the outer side of the web of the front end of the semi-trailer gooseneck girder 2. The fixed pipe shaft 10 abuts against the outer edges of the upper and lower wing plates of the semi-trailer gooseneck girder 2. When not in use, the rotating riser 6 can be pulled out of the fixed pipe shaft 10, making the boom support easy to disassemble and not occupying too much space.

[0032] In this embodiment, the spare tire lifting mechanism includes a chain electric hoist 12. The chain electric hoist 12 is hooked on the lifting ring 9. The lower hook of the chain electric hoist 12 can hook the rim of the spare tire 3, easily lifting the spare tire 3. At the same time, the rotating riser 6 can rotate flexibly in the fixed pipe shaft 10, so that the pipe 7 can drive the chain electric hoist 12 to rotate flexibly, and then the spare tire 3 can be easily lifted to a suitable position.

[0033] In this embodiment, two pieces of spare tire support structures are symmetrically arranged before and after the center of the spare tire fixing plate 1. The front spare tire support structure includes a support plate 13 and a bracket 14. The bracket 14 is arranged on the outer side of the web of the semi-trailer gooseneck girder 2 and below the front side of the spare tire fixing plate 1. The bracket 14 is welded to the upper surface of the lower wing plate of the semi-trailer gooseneck girder 2. The support plate 13 is welded to the bracket 14 in a front-high and rear-low inclined manner and is lower than the spare tire fixing plate 1. The two support plates 13 are convenient for supporting the spare tire 3 when installing the spare tire 3, facilitating the use of bolts to tightly connect the fixing holes on the rim with the runway-shaped long holes 5 on the spare tire fixing plate 1.

[0034] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them; although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that: it is still possible to modify the specific implementation manners of the present invention or perform equivalent replacements for some technical features; without departing from the spirit of the technical solutions of the present invention, they should all be covered within the scope of the technical solutions claimed by the present invention.

Claims

1. A vertical spare tire fixing rack for a low-bed semi-trailer, characterized by: It includes a spare tire fixing plate, a hanging rod frame, a spare tire lifting mechanism and a spare tire supporting structure; The spare tire fixing plate is detachably mounted on the top of the upper wing plate of the gooseneck beam of the semi-trailer and stands on the outer edge of the upper wing plate of the gooseneck beam of the semi-trailer, and is used to install and fix the spare tire; The boom frame is detachable and vertically rotatably installed on the outside of the front end of the gooseneck beam of the semi-trailer, and the top of the boom frame is a cantilever structure higher than the spare tire fixing plate; The spare tire lifting mechanism is arranged on the cantilever structure and is used to lift the spare tire; The spare tire supporting structure is installed on the outer side of the web of the semi-trailer gooseneck beam and is located below the outer side of the spare tire fixing plate, and is used to support the spare tire.

2. The vertical spare tire fixing bracket for low-bed semi-trailer according to claim 1 is characterized in that: Two fixed angle irons are welded on the upper surface of the upper wing plate of the gooseneck beam of the semi-trailer, and the spacing between the vertical side plates of the two fixed angle irons is greater than or equal to the front and rear dimensions of the spare tire fixing plate. The spare tire fixing plate is placed between the two fixed angle irons and is connected to the two fixed angle irons by bolts. The bottom of the spare tire fixing plate is supported on the upper surface of the upper wing plate of the gooseneck beam of the semi-trailer. The spare tire fixing plate is aligned with the outer edge of the upper wing plate of the gooseneck beam of the semi-trailer. A plurality of runway-shaped long holes, which are arranged at front and rear intervals and are used to install and fix the spare tire, are vertically opened on the upper edge of the spare tire fixing plate.

3. The vertical spare tire fixing bracket for low-bed semi-trailer according to claim 1 is characterized in that: The boom frame includes a rotating riser, a horizontally arranged cantilevered hanging pipe is welded to the upper end of the rotating riser, the hanging pipe is the cantilever structure, a reinforcing rib plate is welded between the adjacent ends of the hanging pipe and the rotating riser, a lifting ring is fixedly provided at the end of the hanging pipe away from the rotating riser, a fixed pipe shaft with an open upper end and a sealed lower end is vertically fixedly installed on the outer side of the front end portion of the semi-trailer gooseneck beam, the lower side of the rotating riser is coaxially plugged and rotated in the fixed pipe shaft, and when the hanging pipe rotates horizontally backward with the rotating riser to be parallel to the gooseneck beam of the semi-trailer, the lifting ring rotates to just above the spare tire supporting structure.

4. The vertical spare tire fixing bracket for low-bed semi-trailer according to claim 3 is characterized in that: The spare tire lifting mechanism comprises an electric chain hoist, and the electric chain hoist is hooked on a lifting ring.

5. The vertical spare tire fixing bracket for low-bed semi-trailer according to claim 1, characterized in that: The spare tire supporting structure consists of two parts symmetrically arranged front and back with the center of the spare tire fixing plate. The front spare tire supporting structure includes a supporting plate and a bracket. The bracket is arranged on the outer side of the web of the semi-trailer gooseneck beam and is located below the outer side of the front side of the spare tire fixing plate. The bracket is welded to the upper surface of the lower wing plate of the semi-trailer gooseneck beam. The supporting plate is higher in front and lower in the back and is welded on the bracket at an angle and is lower than the spare tire fixing plate.

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