Semi-trailer spare tire holder device

Abstract

The utility model discloses a kind of semitrailer spare tire support devices, including fixedly installed in the lateral support of vehicle girder outside, and through the winding mechanism of lateral support installation, and through the rope of winding mechanism winding, the lower end of the rope is fixed with a clamping device after passing through the lateral support, positioning seat is installed in the bottom of lateral support, when the rope pulls the clamping device and goes up to limit position, the clamping device is positioned by the positioning seat;Through rocking handle driving gear reducer, drive reel retraction steel wire rope, the mechanical type lifting of spare tire is realized.The design greatly reduces the labor intensity of operator, so that single person can easily complete the loading and unloading operation of spare tire, especially applicable to the scene of lifting heavy spare tire from ground.

Description

Technical Field

[0001] This utility model relates to a spare tire bracket device for semi-trailers. Background Technology

[0002] Semi-trailers typically need to carry a spare tire for emergencies. Traditionally, spare tires are secured by chains or steel cables, directly binding and suspending them under the chassis. This method has several drawbacks: First, during vehicle operation, especially on bumpy roads, the spare tire is prone to violent shaking and rotation, generating noise and potentially causing the securing structure to loosen or even break over time, posing a safety hazard. Second, due to the spare tire's weight and low position, installing and removing it is extremely laborious and requires significant physical exertion from the operator.

[0003] There is an urgent need for a spare tire support device for semi-trailers that can conveniently and effortlessly raise and lower the spare tire, and can also securely lock it in the storage position to effectively prevent shaking. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a semi-trailer spare tire bracket device that can conveniently and labor-savingly raise and lower the spare tire, and can also securely lock it in the storage position to effectively prevent shaking.

[0005] To solve the above problems, the present invention adopts the following technical solution: A spare tire support device for a semi-trailer includes a side bracket fixedly installed on the outside of the vehicle beam, a winding mechanism installed through the side bracket, and a hanging rope wound through the winding mechanism. The lower end of the hanging rope passes through the side bracket and is fixed to a clamping device. A positioning seat is installed at the bottom of the side bracket. When the hanging rope pulls the clamping device upward to its limit position, the clamping device is positioned by the positioning seat.

[0006] Preferably, the side support includes a base plate, a side plate, and ribs. The side plate has connecting ears on both sides, and connecting holes are machined on the connecting ears. The base plate is fixed to the bottom side of the side plate. Two ribs are provided and fixedly disposed between the base plate and the side plate. A through hole is provided on the surface of the base plate. The positioning seat is fixedly installed on the bottom of the base plate and coaxial with the through hole. The winding mechanism is installed through the ribs on both sides.

[0007] Preferably, the winding mechanism includes a spool and a gear reducer. The spool is rotatably mounted between the two ribs via bearings. The gear reducer is fixed to the outside of one of the ribs by screws and is fixedly connected to the spool. A crank is installed at the input end of the gear reducer, and one end of the hanging rope is fixed to the spool.

[0008] Preferably, the hanging rope is a steel wire rope.

[0009] Preferably, the bottom of the positioning seat is provided with a tapered positioning hole, the diameter of which gradually decreases upwards. The positioning hole is coaxial with the through hole, and the clamping device is positioned through the positioning hole.

[0010] Preferably, the clamping device includes a clamping plate and a positioning block. The positioning block is coaxially disposed on the top of the clamping plate. Multiple fixing grooves are arranged in a ring around the axis of the clamping plate on the plate surface. The positioning block is conical. After the positioning block moves upward, it is inserted into the positioning hole. A threaded connection part is provided at the top axis of the positioning block. The threaded connection part passes through the through hole and the base plate and is fitted with a nut. Multiple operating handles are arranged in a ring around the outside of the nut. The hanging rope passes through the nut and the lower end of the hanging rope is inserted into the positioning block for fixation.

[0011] Preferably, a rubber stop pad is fixed to the outside of the positioning block.

[0012] Preferably, a locking rod is fixed to the outer wall of the positioning block, and a locking plate is fixed to the bottom front end of the base plate. The locking plate has a U-shaped groove for engaging the locking rod, and a locking screw is screwed upward into the bottom of the locking plate. After the locking screw is screwed up, it limits the rotation of the locking rod.

[0013] The beneficial effects of this utility model are: The spare tire is mechanically lifted and lowered by a crank-driven gear reducer that rotates the reel to wind up and unwind the wire rope. This design greatly reduces the labor intensity of operators, allowing a single person to easily complete the loading and unloading of the spare tire, making it particularly suitable for scenarios involving lifting heavy spare tires from the ground.

[0014] When the spare tire is raised to its limit position, the tapered positioning block at the top of the clamping device precisely inserts into the tapered positioning hole at the bottom of the side bracket. This tapered mating structure automatically centers and eliminates radial clearance, effectively suppressing the spare tire's swaying in all directions during vehicle operation, significantly improving the stability and safety of the mounting.

[0015] After the positioning block is inserted into the positioning hole, tightening the nut on top will press the entire clamping device and the side bracket together to form a main lock.

[0016] The stop pads on the outside of the positioning block further enhance the tightness of the fit with the positioning hole and play a role in buffering and vibration reduction.

[0017] The operating handle on the nut makes it easy to apply torque, making the locking operation easier. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a half-sectional view of the positioning seat and clamping device. Detailed Implementation

[0020] All features disclosed in this specification, or all steps in all disclosed methods or processes, may be combined in any way, except for mutually exclusive features and / or steps.

[0021] Any feature disclosed in this specification (including any appended claims, abstract, and drawings) may be replaced by other equivalent or similar features for a similar purpose, unless specifically stated otherwise. That is, unless specifically stated otherwise, each feature is merely one example of a series of equivalent or similar features.

[0022] In the description of this utility model, it should be understood that the terms "one end", "the other end", "outer side", "upper", "inner side", "horizontal", "coaxial", "center", "end", "length", "outer end", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0023] Furthermore, in the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0024] In this utility model, unless otherwise explicitly specified and limited, the terms "set," "socket," "connect," "through," and "plug-in" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0025] See Figure 1 and Figure 2 The semi-trailer spare tire support device shown includes a side bracket 1 fixedly installed on the outside of the vehicle beam, a winding mechanism 2 installed through the side bracket 1, and a hanging rope 3 wound through the winding mechanism 2. The lower end of the hanging rope 3 passes through the side bracket 1 and is fixed with a clamping device 4. A positioning seat 5 is installed at the bottom of the side bracket 1. When the hanging rope 3 pulls the clamping device 4 to its limit position, the clamping device 4 is positioned by the positioning seat 5.

[0026] In the above technical solution, the positioning seat 5 positions the clamping device 4, avoiding shaking of the clamping device and improving the stability when mounting the spare tire.

[0027] Secondly, the spare tire is suspended by a hanging rope 3 and then by a winding mechanism 2, which makes it easy to lift it from the ground and hang it upwards, making it easy to load and unload the spare tire.

[0028] See Figure 1 As shown, the side bracket 1 includes a base plate 11, a side plate 12, and a rib plate 13. The side plate 12 has connecting ears 14 on both sides, and connecting holes 15 are machined on the connecting ears 14. The connecting ears 14 are fixed to the vehicle beam by bolts through the connecting holes 15. The base plate 11 is fixed at the bottom of the side of the side plate 12. Two rib plates 13 are provided, and the rib plates 13 are fixedly arranged between the base plate 11 and the side plate 12. A through hole 16 is provided on the surface of the base plate 11. The positioning seat 5 is fixedly installed at the bottom of the base plate 11 and is coaxial with the through hole 16. The winding mechanism 2 is installed through the rib plates 13 on both sides.

[0029] In the above technical solution, the base plate 11, side plate 12 and rib plate 13 are connected by welding.

[0030] See Figure 1 As shown, the winding mechanism 2 includes a winding shaft 21 and a gear reducer 22. The winding shaft 21 is rotatably mounted between the two rib plates 13 on both sides via bearings. The gear reducer 22 is fixed to the outside of one side of the rib plate 13 by screws and is fixedly connected to the winding shaft 21. A crank handle 23 is installed at the input end of the gear reducer 22. One end of the hanging rope 3 is fixed to the winding shaft 21.

[0031] The hanging rope 3 is a steel wire rope.

[0032] The gear reducer 22 has a transmission ratio of N:1, where N = 4~12, meaning that when the crank 23 rotates N times, the roller 21 rotates 1 time.

[0033] See Figure 1 and Figure 2As shown, the bottom of the positioning seat 5 is provided with a tapered positioning hole 51. The diameter of the positioning hole 51 gradually decreases upward. The positioning hole 51 is coaxial with the through hole 16. The clamping device 4 is positioned through the positioning hole 51. The positioning seat 5 is fixed to the base plate 11 by welding.

[0034] The clamping device 4 includes a clamping plate 41 and a positioning block 42. The positioning block 42 is coaxially disposed on the top of the clamping plate 41. Multiple fixing grooves 43 are arranged in a ring on the surface of the clamping plate 41 with the axis of the clamping plate 41 as the center. The positioning block 42 is conical, and the taper is consistent with the positioning hole 51. After the positioning block 42 moves upward, it is inserted into the positioning hole 51. A threaded connection part 44 is provided at the top axis of the positioning block 42. The threaded connection part 44 passes through the bottom plate 11 from the through hole 16 and is fitted with a nut 45. Multiple operating handles 451 are arranged in a ring around the outside of the nut 45 to facilitate the application of rotational torque. The hanging rope 3 passes through the nut 45, and the lower end of the hanging rope 3 is inserted into the positioning block 42 for fixation. The lower end of the hanging rope 3 is fixed to the positioning block 42 by casting metal material.

[0035] In the above technical solution, the fixing groove 43 is used to pass through the bolt, the clamping plate 41 is installed on the wheel hub, and the clamping plate 41 and the wheel are fixed together by the bolt passing through the fixing groove 43 and the bolt hole on the wheel hub.

[0036] Then, the rotation of the winding mechanism 2 drives the pull rope 3 to wind up, lifting the clamping device 4 upwards until the positioning block 42 is inserted into the positioning hole 51.

[0037] See Figure 2 As shown, a rubber stop pad 421 is fixed to the outside of the positioning block 42.

[0038] The stop pad 421 is designed to increase the stability of the positioning block 42 after it is inserted into the positioning hole 51.

[0039] See Figure 1 and Figure 2 As shown, a locking rod 422 is fixed on the outer wall of the positioning block 42, and a locking plate 111 is fixed at the bottom front end of the base plate 11. The locking plate 111 has a U-shaped groove 112 that engages with the locking rod 422. A locking screw 113 is screwed upward into the bottom of the locking plate 411. After the locking screw 113 is screwed up, it limits the rotation of the locking rod 422.

[0040] The above technical solution provides a robust structure.

[0041] Locking the locking rod 422 prevents the positioning block 42 from rotating, ensuring stability after loading the spare tire. This is especially effective in preventing loosening on bumpy roads.

[0042] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0043] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0044] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0045] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0046] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein.

[0047] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A spare tire support device for a semi-trailer, characterized in that, It includes a side bracket fixedly installed on the outside of the vehicle beam, a winding mechanism installed through the side bracket, and a hanging rope wound through the winding mechanism. The lower end of the hanging rope passes through the side bracket and is fixed to a clamping device. A positioning seat is installed at the bottom of the side bracket. When the hanging rope pulls the clamping device upward to the limit position, the clamping device is positioned by the positioning seat.

2. The semi-trailer spare tire support device according to claim 1, characterized in that: The side support includes a base plate, side plates, and ribs. Connecting ears are provided on both sides of the side plates, and connecting holes are machined on the connecting ears. The base plate is fixed at the bottom side of the side plate. Two ribs are provided and fixedly disposed between the base plate and the side plates. A through hole is provided on the surface of the base plate. The positioning seat is fixedly installed at the bottom of the base plate and coaxial with the through hole. The winding mechanism is installed through the ribs on both sides.

3. The semi-trailer spare tire support device according to claim 2, characterized in that: The winding mechanism includes a spool and a gear reducer. The spool is rotatably mounted between the two ribs via bearings. The gear reducer is fixed to the outside of one of the ribs by screws and is fixedly connected to the spool. A crank is installed at the input end of the gear reducer, and one end of the hanging rope is fixed to the spool.

4. The semi-trailer spare tire support device according to claim 1 or 3, characterized in that: The hanging rope is a steel wire rope.

5. The semi-trailer spare tire support device according to claim 3, characterized in that: The bottom of the positioning seat is provided with a tapered positioning hole, the diameter of which gradually decreases upward. The positioning hole is coaxial with the through hole, and the clamping device is positioned through the positioning hole.

6. The semi-trailer spare tire support device according to claim 5, characterized in that: The clamping device includes a clamping plate and a positioning block. The positioning block is coaxially disposed on the top of the clamping plate. Multiple fixing grooves are arranged in a ring around the axis of the clamping plate on the plate surface. The positioning block is conical. After the positioning block moves upward, it is inserted into the positioning hole. A threaded connection part is provided at the top axis of the positioning block. The threaded connection part passes through the through hole and the base plate and is fitted with a nut. Multiple operating handles are arranged in a ring around the outside of the nut. The hanging rope passes through the nut and the lower end of the hanging rope is inserted into the positioning block for fixation.

7. The semi-trailer spare tire support device according to claim 6, characterized in that: A rubber stop pad is fixed to the outside of the positioning block.

8. The semi-trailer spare tire support device according to claim 6, characterized in that: A locking rod is fixed to the outer wall of the positioning block, and a locking plate is fixed at the bottom front end of the base plate. The locking plate has a U-shaped groove for engaging the locking rod, and a locking screw is screwed upward into the bottom of the locking plate. After the locking screw is screwed up, it limits the rotation of the locking rod.

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