Spare tire support of semitrailer

Abstract

The utility model relates to the technical field of semitrailer accessories, in particular to a spare tire support of a semitrailer, which comprises a fixing plate and a placing frame, the placing frame comprises a surrounding frame, two side plates, two limiting plates, a placing assembly, two moving assemblies, two limiting assemblies and a protective assembly, a built-in column and a threaded column in an existing containing assembly play a role in limiting, containing and supporting the spare tire, under rotation and movement of a plurality of lead screws and rollers, workers can take the spare tire rapidly, operation is convenient and rapid, and the design solves the problems that when the spare tire is taken out, a first threaded rod needs to be rotated, long time is consumed, the tire taking process is slow, and the work efficiency is high. And the use is relatively inconvenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to semi -trailer accessory technical field especially, relates to a spare tire support of semi -trailer. BACKGROUND

[0002] Semi -trailer is quite widely used in modern transportation industry one kind of transport tool, in the transportation process, semi -trailer needs to carry spare tire and use mostly, and the spare tire frame of present mostly directly adopts steel chain and hangs spare tire in the bottom of frame, and then in the vehicle driving, it will produce the swing, and the fatigue strength of steel chain will gradually reduce in long -term use swing, and then will cause the danger of steel chain fracture.

[0003] In the prior art, a kind of semi -trailer spare tire support is provided in patent (CN217294714U), including fixed plate, the left and right two side walls of fixed plate are welded and installed with mounting lug, fixed plate's bottom is welded and installed with fixed limiting frame, fixed plate's bottom is rotatably installed with threaded sleeve, the surface of threaded sleeve is fixedly provided with first bevel gear, fixed plate's bottom is rotatably installed with first threaded rod by rotating support, spare tire is fixed with second threaded rod by nut, first threaded rod is rotated by hexagon socket wrench, second bevel gear is driven to rotate with first bevel gear by first threaded rod, threaded sleeve is driven to rotate by first bevel gear, threaded sleeve and threaded block are engaged, and then threaded block is moved vertically along threaded sleeve, and then spare tire is moved vertically, while first threaded rod is rotated, movable limiting frame is moved laterally and close to fixed limiting frame, spare tire is limited and fixed by movable limiting frame and fixed limiting frame to prevent swing.

[0004] But in the prior art, when taking out spare tire, first threaded rod needs to be rotated, it takes a long time, tire taking process is slow, and it is inconvenient to use. SUMMARY

[0005] The utility model aims at providing a kind of spare tire support of semi -trailer, solve the problem that first threaded rod needs to be rotated in prior art when taking out spare tire, it takes a long time, tire taking process is slow, and it is inconvenient to use.

[0006] The utility model provides a spare tire support of semitrailer, including fixed plate and placing rack, the placing rack includes the enclosure, two side plates, two limit boards, placing subassembly, two movement subassembly, two limit components and protection component, protection component with two fixed connection of side plate lies in one side of two side plate, two limit components all with fixed connection of fixed plate lie below fixed plate, two movement subassembly all with fixed connection of placing subassembly lie two sides of placing subassembly, placing subassembly with two slide connection of side plate lie inboard of two side plate, each limit board is with fixed connection of corresponding side plate respectively and lies in one side of corresponding side plate, two side plates all with fixed connection of enclosure lie below enclosure, the enclosure with fixed connection of fixed plate lie below fixed plate.

[0007] Among them, the placing assembly includes placing mainboard, support ring, built-in column, threaded column and nut, the nut is rotatably connected with the threaded column and located on the side of the threaded column, the threaded column is fixedly connected with the built-in column and located at the upper end of the built-in column, the lower end of the built-in column is fixedly connected with the support ring and located above the support ring, the support ring is fixedly connected with the placing mainboard and located above the placing mainboard.

[0008] Among them, each movement subassembly includes a moving frame, a plurality of lead screws and a plurality of rollers, each roller is rotatably connected with a corresponding lead screw and located on the side of the corresponding lead screw, each lead screw is fixedly connected with the moving frame and located below the moving frame, the moving frame is fixedly connected with the placing mainboard and located below the placing mainboard.

[0009] Among them, each limit component includes a limit cylinder, a limit air rod and a contact ring, the contact ring is fixedly connected with the limit air rod and located at the lower end of the limit air rod, the upper end of the limit air rod is fixedly connected with the output end of the limit cylinder, the limit cylinder is fixedly connected with the fixed plate and located below the fixed plate.

[0010] Among them, the protection component includes two mounting plates and a protection plate, the two sides of the protection plate are fixedly connected with corresponding mounting plates respectively and located on one side of the corresponding mounting plates, two mounting plates are fixedly connected with corresponding side plates respectively and located on the outside of the corresponding side plates.

[0011] The spare tire support of the semitrailer is convenient and fast to operate, the problem that the first threaded rod needs to be rotated when the spare tire is taken out, a long time is consumed, the tire taking process is slow, and use is inconvenient is solved. BRIEF DESCRIPTION OF DRAWINGS

[0012] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced.

[0013] Figure 1 is the overall structure schematic view of the spare tire support of the semitrailer.

[0014] Figure 2 is the front view of the spare tire support of the semitrailer.

[0015] Figure 3 is the A-A line section view of the spare tire support of the semitrailer. Figure 2

[0016] Figure 4 is the B-B line section view of the spare tire support of the semitrailer. Figure 3

[0017] Figure 5 is the C local structure enlarged view of the spare tire support of the semitrailer. Figure 4

[0018] 101-fixed plate, 102-placing rack, 103-enclosure, 104-side plate, 105-limiting plate, 106-placing assembly, 107-moving assembly, 108-limiting assembly, 109-protection assembly, 110-placing main plate, 111-supporting ring, 112-built-in column, 113-threaded column, 114-nut, 115-moving frame, 116-screw rod, 117-roller, 118-limiting air cylinder, 119-limiting air rod, 120-abutting ring, 121-mounting plate, 122-protection plate. DETAILED DESCRIPTION

[0019] The embodiments of the present application will be described in detail below, examples of the embodiments are shown in the drawings, the embodiments described below by referring to the drawings are exemplary, and are intended to explain the present application, and cannot be understood as the limitation of the present application.

[0020] Please refer to Figures 1-5 , wherein Figure 1 is the overall structure schematic view of the spare tire support of the semitrailer, Figure 2 ​​​This is a front view of a spare tire bracket for a semi-trailer according to this utility model. Figure 3 This is the utility model Figure 2 AA-line sectional view, Figure 4 This is the utility model Figure 3 BB line section view, Figure 5 This is the utility model Figure 4 Enlarged view of the local structure at point C.

[0021] This utility model provides a spare tire bracket for a semi-trailer, including a fixing plate 101 and a placement frame 102. The placement frame 102 includes a frame 103, two side plates 104, two limiting plates 105, a placement component 106, two moving components 107, two limiting components 108, and a protective component 109. The placement component 106 includes a placement main plate 110, a support ring 111, an internal column 112, a threaded column 113, and a nut 114. Each moving component 107 includes a moving frame 115, multiple lead screws 116, and multiple rollers 117. Each limiting component 108 includes a limiting cylinder 118, a limiting air rod 119, and a retaining ring 120. The protective component 109 includes two mounting plates 121 and a protective plate 122.

[0022] For this specific embodiment, the protection assembly 109 is fixedly connected with the two side plates 104, the two limiting assemblies 108 are fixedly connected with the fixed plate 101, the two moving assemblies 107 are fixedly connected with the placing assembly 106, the placing assembly 106 is slidingly connected with the two side plates 104, each limiting plate 105 is fixedly connected with the corresponding side plate 104, the two side plates 104 are fixedly connected with the enclosing frame 103, the enclosing frame 103 is fixedly connected with the fixed plate 101, the nut 114 is rotationally connected with the threaded column 113, the threaded column 113 is fixedly connected with the built-in column 112, the lower end of the built-in column 112 is fixedly connected with the support ring 111, the support ring 111 is fixedly connected with the placing main plate 110, each roller 117 is rotationally connected with the corresponding lead screw 116, each lead screw 116 is fixedly connected with the moving frame 115, the moving frame 115 is fixedly connected with the placing main plate 110, the abutting ring 120 is fixedly connected with the limiting air rod 119, the upper end of the limiting air rod 119 is fixedly connected with the output end of the limiting air cylinder 118, the limiting air cylinder 118 is fixedly connected with the fixed plate 101, the two sides of the protection plate 122 are fixedly connected with the corresponding mounting plate 121, the two mounting plates 121 are fixedly connected with the corresponding side plates 104, and the built-in column 112 and the threaded column 113 arranged in the placing assembly 106 are used for limiting, placing and supporting the spare tire, and under the rotation and movement of the lead screws 116 and the rollers 117, the spare tire can be quickly taken by the staff, and the operation is convenient and fast. The design solves the problems of long time consumption, slow tire taking process and inconvenience in use when the first threaded rod is rotated to take out the spare tire.

[0023] Among them, the protection assembly 109 is located on one side of the two side plates 104, the two limiting assemblies 108 are located below the fixed plate 101, the two moving assemblies 107 are located on both sides of the placing assembly 106, the placing assembly 106 is located inside the two side plates 104, each limiting plate 105 is located on one side of the corresponding side plate 104, the two side plates 104 are located below the enclosing frame 103, the enclosing frame 103 is located below the fixed plate 101, the abutting ring 120 arranged at the lower end of the limiting air rod 119 is used to limit the cylinder driving process, so as to avoid the continuous descending of the limiting air rod 119 caused by the cylinder, which can damage the placing main plate 110. When the spare tire is placed and stored below the enclosing frame 103, it needs to be close to one side of the protection plate 122, the protection plate 122 can protect the tread of the spare tire, and the mounting ears on both sides of the fixed plate 101 are used to be installed below the semitrailer.

[0024] Secondly, the nut 114 is located on the side of the threaded column 113, the threaded column 113 is located on the upper end of the built-in column 112, the lower end of the built-in column 112 is located above the support ring 111, the support ring 111 is located above the placement main plate 110, each roller 117 is located on the side of the corresponding lead screw 116, each lead screw 116 is located below the moving frame 115, the moving frame 115 is located below the placement main plate 110, the lead screw 116 provides rotation support for the corresponding roller 117, each roller 117 rotates on the inner side of the corresponding side plate 104, so that the staff can slide out the placement main plate 110, saving the time required to take out the spare tire, the outer surface of the built-in column 112 is smooth, and the inner side of the spare tire can be directly placed on the side of the built-in column 112, the threaded column 113 and the nut 114 have matching threads, connected by threaded rotation, the staff rotates the nut 114, so as to facilitate the removal of the spare tire from the built-in column 112.

[0025] At the same time, the abutting ring 120 is located at the lower end of the limiting air rod 119, the limiting air cylinder 118 is located below the fixed plate 101, the two sides of the protective plate 122 are located on one side of the corresponding mounting plate 121, and the two mounting plates 121 are located on the outer side of the corresponding side plate 104. The spare tire is placed above the support ring 111 and can rotate freely on the side of the built-in column 112. When the staff takes out the spare tire, first control two limiting air cylinders 118 to drive two limiting air rods 119 to be recycled upward and separated from the placement main plate 110, then pull the placement main plate 110 to take out the spare tire below the surrounding frame 103, then rotate the nut 114, the lower side of the nut 114 is provided with a circular baffle, which plays a pressing role on the spare tire. After the nut 114 is rotated and taken out, the staff can take and use the spare tire, then rotate the nut 114 and install it above the threaded column 113, return the placement main plate 110, and drive the corresponding limiting air rod 119 downward by two limiting air cylinders 118 to abut and limit the placement main plate 110.

[0026] In this embodiment, the purpose of the abutting ring 120 arranged at the lower end of the limiting air rod 119 is to limit the air cylinder driving process, avoid the continuous descent of the air cylinder on the limiting air rod 119, and cause damage to the placing main plate 110. When the spare tire is placed and stored below the surrounding frame 103, it needs to be close to the side of the protective plate 122. The protective plate 122 can protect the tread of the spare tire. The mounting ears on both sides of the fixed plate 101 are used to be installed below the semitrailer. The lead screw 116 provides rotating support for the corresponding roller 117. Each roller 117 rotates on the inner side of the corresponding side plate 104, so that the staff can slide and pull out the placing main plate 110, saving the time needed to take the spare tire. The outer surface of the built-in column 112 is smooth, and the inner side of the spare tire can be directly placed on the periphery of the built-in column 112. The threaded column 113 and the nut 114 have matching threads and are connected by threaded rotation. The staff rotates the nut 114, so that the spare tire can be taken out of the built-in column 112. The spare tire is placed above the supporting ring 111 and can be freely rotated on the periphery of the built-in column 112. When the staff takes out the spare tire, first control two limiting air cylinders 118 to drive two limiting air rods 119 upwards to recover and separate from the placing main plate 110. Then pull the placing main plate 110 to take out the spare tire below the surrounding frame 103. Then rotate the nut 114, and the lower side of the nut 114 is provided with a circular baffle to press the spare tire. After the nut 114 is taken out by rotating, the staff can take and use the spare tire. Then rotate the nut 114 and install it above the threaded column 113. Retract the placing main plate 110, and two limiting air cylinders 118 drive the corresponding limiting air rods 119 downwards to abut, limiting the placing main plate 110.

[0027] The above disclosure is only one or more preferred embodiments of the present application, which cannot limit the scope of the rights of the present application. Those skilled in the art can understand that all or part of the above-mentioned embodiments can be implemented, and equivalent changes made according to the claims of the present application still belong to the scope covered by the present application.

Claims

1. A spare tire holder of a semitrailer, comprising a fixed plate, characterized in that it further comprises a placing frame, the placing frame comprises an enclosure, two side plates, two limiting plates, a placing assembly, two moving assemblies, two limiting assemblies and a protection assembly, the protection assembly is fixedly connected with the two side plates and located on one side of the two side plates, the two limiting assemblies are fixedly connected with the fixed plate and located below the fixed plate, the two moving assemblies are fixedly connected with the placing assembly and respectively located on the two sides of the placing assembly, the placing assembly is slidingly connected with the two side plates and located on the inner sides of the two side plates, each limiting plate is fixedly connected with the corresponding side plate and respectively located on one side of the corresponding side plate, the two side plates are fixedly connected with the enclosure and located below the enclosure, and the enclosure is fixedly connected with the fixed plate and located below the fixed plate.

2. The spare tire holder of a semitrailer according to claim 1, characterized in that the placing assembly comprises a placing main plate, a supporting ring, an inner column, a threaded column and a nut, the nut is rotatably connected with the threaded column and located on the circumferential side of the threaded column, the threaded column is fixedly connected with the inner column and located on the upper end of the inner column, the lower end of the inner column is fixedly connected with the supporting ring and located above the supporting ring, and the supporting ring is fixedly connected with the placing main plate and located above the placing main plate.

3. The spare tire holder of a semitrailer according to claim 2, characterized in that each moving assembly comprises a moving frame, a plurality of lead screws and a plurality of rollers, each roller is rotatably connected with the corresponding lead screw and respectively located on the circumferential side of the corresponding lead screw, each lead screw is fixedly connected with the moving frame and located below the moving frame, and the moving frame is fixedly connected with the placing main plate and located below the placing main plate.

4. The spare tire holder of a semitrailer according to claim 3, characterized in that each limiting assembly comprises a limiting cylinder, a limiting rod and a bearing ring, the bearing ring is fixedly connected with the limiting rod and located on the lower end of the limiting rod, the upper end of the limiting rod is fixedly connected with the output end of the limiting cylinder, and the limiting cylinder is fixedly connected with the fixed plate and located below the fixed plate.

5. The spare tire holder of a semitrailer according to claim 4, characterized in that the protection assembly comprises two mounting plates and a protection plate, the two sides of the protection plate are fixedly connected with the corresponding mounting plates and respectively located on one side of the corresponding mounting plates, and the two mounting plates are respectively fixedly connected with the corresponding side plates and respectively located on the outer sides of the corresponding side plates. ​ ​ ​ ​ ​

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