Gooseneck spare tire fixing structure for a semitrailer

Abstract

The utility model relates to the technical field of semitrailer, disclose a goose head spare tire fixing structure for semitrailer, including base, the base front end face center department is equipped with square groove, the square groove inside center leans on the upper and lower department and is equipped with limiting device evenly, the limiting device includes clamping assembly, adjusting assembly and fixed component, the clamping assembly includes first fixed block, first fixed block one side wall department is equipped with first clamping block, the first clamping block upper end face center leans on one end part department and is equipped with recess, the recess inside center leans on the upper department and is equipped with the rotating rod, the rotating rod outside department fixedly connected with connecting block, the connecting block one end part department is equipped with second clamping block, second clamping block one side department is equipped with second fixed block, second fixed block one side center department is equipped with spring. In the utility model, through limiting device makes it realized the secondary clamping to the spare tire to improve its fixed reliability.

Description

Technical Field

[0001] This utility model relates to the field of semi-trailer technology, and in particular to a goose-head spare tire fixing structure for semi-trailers. Background Technology

[0002] A semi-trailer is a common commercial vehicle consisting of a tractor and a semi-trailer body. During the transportation process of a semi-trailer, the spare tire is used to temporarily replace the damaged tire when the vehicle encounters a tire failure during driving. The secure fixing of the spare tire is an important part of ensuring the safety of vehicle driving.

[0003] Traditional gooseneck spare tire fixing structures for semi-trailers typically clamp the spare tire at a fixed angle, which can easily lead to insufficient clamping force and loosening due to vibrations during use. This reduces the reliability and effectiveness of the fixing. Therefore, those skilled in the art have provided a gooseneck spare tire fixing structure for semi-trailers to solve the problems mentioned in the background. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a goose-head spare tire fixing structure for semi-trailers. Through a limiting device, it achieves secondary clamping of the spare tire, thereby improving the reliability of its fixing.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a goose-head spare tire fixing structure for a semi-trailer, comprising a base, a square groove at the center of the front end face of the base, an adjustment device at the upper and lower parts of the center of the rear inner wall of the square groove, clamping blocks at the center of the front end faces of the two adjustment devices near both sides, an anti-slip pad at the center of the inner wall of the two clamping blocks, and a limiting device at the upper and lower parts of the center of the interior of the square groove.

[0006] The limiting device includes a clamping component, an adjusting component, and a fixing component. The clamping component is disposed inside the square groove, the adjusting component is disposed inside the clamping component, and the fixing component is disposed at the front end face of the clamping component.

[0007] The clamping assembly includes a first fixing block, which is rotatably connected to an inner wall of a square groove via a rotating shaft. A first clamping block is provided on one side wall of the first fixing block. A groove is provided at the center of the upper end of the first clamping block near one end. A rotating rod is provided at the upper center of the groove. A connecting block is fixedly connected to the outer side of the rotating rod. A second clamping block is provided at one end of the connecting block. A second fixing block is provided on one side of the second clamping block. A spring is provided at the center of one side of the second fixing block. A self-locking hook is provided at the end of the spring. A hook ring is provided on an inner wall of the square groove.

[0008] Through the above technical solution, the first fixing block and the square groove are rotatably connected by a bearing, and the rotating rod and the groove are rotatably connected by a bearing. This allows the operator to adjust the angle of the first clamping block and the second clamping block to fit and clamp the spare tire. After the self-locking hook enters the hook ring, the spare tire is clamped by the first clamping block and the second clamping block, which stretches the spring. Through the elasticity of the spring, a clamping force is formed on the spare tire. The spring provides a continuous preload and realizes secondary clamping of the spare tire, thereby improving the reliability of its fixation.

[0009] Furthermore, the two ends of the rotating rod are rotatably connected to the front and rear inner walls of the groove via bearings. A clamping pad is provided at the center of the lower end face of the first clamping block and the groove. The adjusting assembly includes two screws, which are respectively located at the center of one side wall of the first fixing block and the other side of the second fixing block. A screw hole is provided at the center of one side wall of the first clamping block and the other side wall of the second clamping block. The two screw holes are threadedly connected to the two screws respectively.

[0010] The above technical solution, through the threaded connection between the screw and the screw hole, enables the length and position adjustment of the first and second clamping blocks, allowing them to be used in conjunction with the clamping blocks to clamp and fix spare tires of different sizes and types, ensuring the optimal clamping position of the spare tire in the square groove.

[0011] Furthermore, the two screws are rotatably connected to the first fixing block and the second fixing block respectively via bearings, and each of the upper and lower end faces is provided with a handle near one end.

[0012] The above technical solution achieves the rotational requirements of the screw by connecting it to the first and second fixed blocks via bearings, thus satisfying the influence of the screw rotation on the first and second fixed blocks. Furthermore, the hand lever facilitates the operator's control of the screw rotation.

[0013] Furthermore, a bolt is provided at one side of the center of the front end face of the second fixing block, the end of the bolt passes through the front end face of the second fixing block and extends to the rear end face of the second fixing block, and is threadedly connected to the second fixing block, and an adsorption plate is provided at the end of the bolt;

[0014] With the above technical solution, when the first clamping block and the second clamping block reach a suitable clamping force, the rotating bolt enables the adsorption plate to move. The adsorption plate then moves to the inner wall of the square groove, where it is pressed and adsorbed against the inner wall of the square groove. This fixes the first and second clamping blocks, preventing vibration from causing the spring to stretch and contract, which could lead to displacement of the first and second clamping blocks and affect the clamping effect, thus ensuring the tightness of the clamping.

[0015] Furthermore, the two adjustment devices include two fixed rails, which are respectively set at the upper and lower center of the inner wall of the square groove. The inner center of the two fixed rails is slidably connected to slide rails on both sides. The center of the rear side wall of the two fixed rails and the center of the inner wall of the four slide rails are provided with pin holes on one side. The center of the inner wall of the four slide rails is provided with locking pins on one side.

[0016] The above technical solution allows the slide rail to slide inside the fixed rail, enabling the clamping block to be adjusted according to spare tires of different sizes and shapes, ensuring the spare tire is in the optimal fixed position on the base. The locking pin and the pin hole ensure the slide rail is firmly locked in the fixed position, and the slide rail position can be locked without tools. Its structure is simple and easy to operate. The anti-slip pad provides additional friction to prevent the spare tire from sliding during the fixing process.

[0017] Furthermore, the front ends of the two slide rails on one side and the two slide rails on the other side are fixedly connected to the two clamping blocks respectively, and the four locking pins pass through the two pin holes in sequence to the inside of the pin holes.

[0018] The above technical solution ensures that the slide rail and clamping block are fixedly connected, allowing the slide rail to move and the clamping block to move. The locking pin further secures and locks the slide rail and clamping block.

[0019] Furthermore, both of the clamping blocks are arc-shaped;

[0020] The above technical solution uses an arc-shaped clamping block to accommodate the curved surface of the spare tire, thus facilitating its clamping.

[0021] This utility model has the following beneficial effects:

[0022] 1. In this utility model, when using the goose-head spare tire fixing structure for semi-trailers, the operator rotates the first fixing block and the second clamping block to adjust their angles and clamp them to fit the spare tire. After the self-locking hook enters the hook ring, the spare tire is clamped by the first clamping block and the second clamping block, causing the spring to be stretched. Through the elasticity of the spring, a clamping force is formed on the spare tire. The spring provides a continuous preload and achieves secondary clamping of the spare tire, thereby improving the reliability of its fixing and the clamping effect.

[0023] 2. In this utility model, the threaded connection between the screw and the screw hole enables the length and position adjustment of the first clamping block and the second clamping block, so that they can be used in conjunction with the clamping block to clamp and fix spare tires of different sizes and types, ensuring the optimal clamping position of the spare tire in the square groove.

[0024] 3. In this utility model, when the first clamping block and the second clamping block reach a suitable clamping force, the rotating bolt enables the adsorption plate to move. The adsorption plate then moves to the inner wall of the square groove, where it is pressed and adsorbed against the inner wall of the square groove. This ensures the fixation of the first and second clamping blocks, preventing vibration from causing the spring to stretch and contract, which could lead to displacement of the first and second clamping blocks and affect the clamping effect. This ensures the tightness of the clamping. Attached Figure Description

[0025] Figure 1 A perspective view of a goose-head spare tire fixing structure for a semi-trailer proposed in this utility model;

[0026] Figure 2 This is a front view of a goose-head spare tire fixing structure base for a semi-trailer proposed in this utility model;

[0027] Figure 3 This is a perspective view of a goose-head spare tire fixing structure limiting device for a semi-trailer proposed in this utility model.

[0028] Figure 4 This is a three-dimensional sectional view of a goose-head spare tire fixing structure limiting device for a semi-trailer proposed in this utility model.

[0029] Legend:

[0030] 1. Base; 2. Square groove; 3. Adjustment device; 301. Fixed rail; 302. Slide rail; 303. Pin hole; 304. Locking pin; 4. Clamping block; 5. Anti-slip pad; 6. Limiting device; 601. First fixing block; 602. First clamping block; 603. Groove; 604. Rotating rod; 605. Connecting block; 606. Second clamping block; 607. Second fixing block; 608. Spring; 609. Self-locking hook; 610. Hook ring; 611. Clamping pad; 612. Screw; 613. Screw hole; 614. Hand lever; 615. Bolt; 616. Adsorption plate. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Reference Figure 1-4 This utility model provides an embodiment of a gooseneck spare tire fixing structure for a semi-trailer, comprising a base 1, a square groove 2 at the center of the front end face of the base 1, and adjusting devices 3 at the upper and lower positions of the center of the rear inner wall of the square groove 2. Clamping blocks 4 are provided at the center of the front end face of the two adjusting devices 3 on both sides, and anti-slip pads 5 are provided at the center of the inner wall of the two clamping blocks 4. Limiting devices 6 are provided at the upper and lower positions of the center of the inner wall of the square groove 2. The limiting devices 6 enable secondary clamping of the spare tire, thereby improving the reliability of its fixing.

[0033] The two adjustment devices 3 include two fixed rails 301, which are respectively set at the upper and lower center of the rear inner wall of the square groove 2. Slide rails 302 are slidably connected to the inner center of the two fixed rails 301 on both sides. Pin holes 303 are provided at the center of the rear side wall of the two fixed rails 301 and the center of the rear inner wall of the four slide rails 302 on one side. Locking pins 304 are provided at the center of the rear inner wall of the four slide rails 302 on one side. The slide rails 302 are slidably connected to the fixed rails 301 inside, so that the clamping block 4 can be adjusted according to spare tires of different sizes and shapes, ensuring the optimal fixed position of the spare tire on the base 1. The locking pins 304 and pin holes 303 ensure the firm locking of the slide rails 302 in the fixed position. The position of the slide rails 302 can be locked without tools. Its structure is simple and easy to operate. The anti-slip pad 5 provides additional friction to prevent the spare tire from sliding during the fixing process.

[0034] The front ends of the two slide rails 302 on one side and the two slide rails 302 on the other side are fixedly connected to the two clamping blocks 4 respectively. The four locking pins 304 pass through the two pin holes 303 in sequence and extend into the inside of the pin holes 303. The fixed connection between the slide rails 302 and the clamping blocks 4 ensures that the movement of the slide rails 302 can drive the movement of the clamping blocks 4. The through-penetration of the locking pins 304 ensures that the slide rails 302 and the clamping blocks 4 are fixedly locked.

[0035] Both clamping blocks 4 are arc-shaped, which allows them to adapt to the curved surface of the spare tire, thus facilitating its clamping.

[0036] like Figure 1 , 3As shown in Figure 4, the limiting device 6 includes a clamping assembly, an adjusting assembly, and a fixing assembly. The clamping assembly is located inside the square groove 2, the adjusting assembly is located inside the clamping assembly, and the fixing assembly is located at the front end face of the clamping assembly. The clamping assembly includes a first fixing block 601, which is rotatably connected to an inner wall of the square groove 2 via a rotating shaft. A first clamping block 602 is provided on one side wall of the first fixing block 601. A groove 603 is provided at one end of the upper surface of the first clamping block 602. A rotating rod 604 is provided at the upper center of the groove 603. A connecting block 605 is fixedly connected to the outer side of the rotating rod 604. A second clamping block 606 is provided at one end of the connecting block 605. A second fixing block 607 is provided on one side of the second clamping block 606. A fixing block 607 is provided at the center of one side of the second fixing block 607. A spring 608 is provided, with a self-locking hook 609 at its end. A hook ring 610 is provided on the inner side wall of the square groove 2. The first fixing block 601 is rotatably connected to the square groove 2 via a bearing, and the rotating rod 604 is rotatably connected to the groove 603 via a bearing. This allows the operator to adjust the angle of the first clamping block 602 and the second clamping block 606 to fit and clamp the spare tire. After the self-locking hook 609 enters the hook ring 610, the spare tire is clamped by the first clamping block 602 and the second clamping block 606, which stretches the spring 608. The elasticity of the spring 608 forms a clamping force on the spare tire. The spring 608 provides a continuous preload and achieves secondary clamping of the spare tire, thereby improving its fixing reliability.

[0037] The two ends of the rotating rod 604 are rotatably connected to the front and rear inner walls of the groove 603 via bearings. A clamping pad 611 is provided at the center of the lower end face of the first clamping block 602 and the groove 603. The adjustment assembly includes two screws 612, which are respectively located at the center of one side wall of the first fixing block 601 and the other side of the second fixing block 607. A screw hole 613 is provided at the center of one side wall of the first clamping block 602 and the other side wall of the second clamping block 606. The two screw holes 613 are threadedly connected to the two screws 612. Through the threaded connection between the screws 612 and the screw holes 613, the length and position of the first clamping block 602 and the second clamping block 606 can be adjusted, so that they can be used with the clamping block 4 to clamp and fix spare tires of different sizes and types, ensuring the optimal clamping position of the spare tire in the square groove 2.

[0038] Two screws 612 are rotatably connected to the first fixed block 601 and the second fixed block 607 respectively via bearings, and a handle 614 is provided at one end of the center of the upper and lower end faces. The screws 612 are rotatably connected to the first fixed block 601 and the second fixed block 607 via bearings, so that the influence of the screws 612 on the first fixed block 601 and the second fixed block 607 during the rotation of the screws 612 is satisfied, and the rotation requirements of the screws 612 are met. The handles 614 make it convenient for the staff to control the rotation of the screws 612.

[0039] A bolt 615 is provided at one side of the center of the front end face of the second fixing block 607. The end of the bolt 615 passes through the front end face of the second fixing block 607 and extends to the rear end face of the second fixing block 607, and is threadedly connected to the second fixing block 607. An adsorption plate 616 is provided at the end of the bolt 615. When the first clamping block 602 and the second clamping block 606 reach a suitable clamping force, the bolt 615 is rotated to enable the adsorption plate 616 to move. The adsorption plate 616 then moves to the inner wall of the square groove 2, and is then pressed against the inner wall of the square groove 2 to adsorb and fix it. This satisfies the need to fix the first clamping block 602 and the second clamping block 606, and avoids the vibration causing the spring 608 to extend and retract, which would cause the first clamping block 602 and the second clamping block 606 to shift and affect the clamping effect, thus ensuring the tightness of the clamping.

[0040] Working principle: When using the gooseneck spare tire fixing structure for semi-trailers, the base 1 is installed to the gooseneck area of ​​the semi-trailer's gooseneck. The slide rail 302 is slidably connected to the fixing rail 301 inside, allowing the clamping block 4 to be adjusted according to spare tires of different sizes and shapes, ensuring the optimal fixing position of the spare tire on the base 1. The locking pin 304 and the pin hole 303 ensure the slide rail 302 is firmly locked in the fixed position. The position of the slide rail 302 can be locked without tools. Its structure is simple and easy to operate. The anti-slip pad 5 provides additional friction to prevent the spare tire from sliding during the fixing process.

[0041] The first fixing block 601 is rotatably connected to the square groove 2 via a bearing, and the rotating rod 604 is rotatably connected to the groove 603 via a bearing. This allows the operator to adjust the angle of the first clamping block 602 and the second clamping block 606 to fit and clamp the spare tire. After the self-locking hook 609 enters the hook ring 610, the spare tire is clamped by the first clamping block 602 and the second clamping block 606, which stretches the spring 608. The elasticity of the spring 608 forms a clamping force on the spare tire. The spring 608 provides a continuous preload and achieves secondary clamping of the spare tire, thereby improving the reliability of its fixation.

[0042] The threaded connection between the screw 612 and the screw hole 613 allows for length and position adjustment of the first clamping block 602 and the second clamping block 606, enabling them to be used in conjunction with the clamping block 4 to clamp and fix spare tires of different sizes and types, ensuring the optimal clamping position of the spare tire within the square groove 2.

[0043] When the first clamping block 602 and the second clamping block 606 reach a suitable clamping force, the rotating bolt 615 enables the adsorption plate 616 to move. The adsorption plate 616 then moves to the inner wall of the square groove 2, where it is pressed against the inner wall and adsorbed, thus securing the first clamping block 602 and the second clamping block 606. This prevents vibration from causing the spring 608 to extend or retract, which could lead to displacement of the first clamping block 602 and the second clamping block 606 and affect the clamping effect, thereby ensuring the tightness of the clamping.

[0044] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A gooseneck spare tire fixing structure for a semi-trailer, comprising a base (1), characterized in that: The base (1) has a square groove (2) at the center of the front end face. The square groove (2) has an adjustment device (3) at the center of the rear inner wall near the top and bottom. The two adjustment devices (3) have clamps (4) at the center of the front end face near the sides. The two clamps (4) have anti-slip pads (5) at the center of the inner wall. The square groove (2) has a limiting device (6) at the center of the interior near the top and bottom. The limiting device (6) includes a clamping component, an adjusting component and a fixing component. The clamping component is disposed inside the square groove (2), the adjusting component is disposed inside the clamping component, and the fixing component is disposed at the front end face of the clamping component. The clamping assembly includes a first fixing block (601), which is rotatably connected to an inner wall of a square groove (2) via a rotating shaft. A first clamping block (602) is provided on one side wall of the first fixing block (601). A groove (603) is provided at one end of the upper surface of the first clamping block (602). A rotating rod (604) is provided at the upper center of the groove (603). A connecting block (605) is fixedly connected to the outer side of the rotating rod (604). A second clamping block (606) is provided at one end of the connecting block (605). A second fixing block (607) is provided on one side of the second clamping block (606). A spring (608) is provided at the center of one side of the second fixing block (607). A self-locking hook (609) is provided at the end of the spring (608). A hook ring (610) is provided on one inner wall of the square groove (2).

2. The gooseneck spare tire fixing structure for a semi-trailer according to claim 1, characterized in that: The two ends of the rotating rod (604) are rotatably connected to the front and rear inner walls of the groove (603) through bearings. The first clamping block (602) and the groove (603) are both provided with clamping pads (611) at the center of the lower end face. The adjustment assembly includes two screws (612). The two screws (612) are respectively located at the center of one side wall of the first fixing block (601) and the other side of the second fixing block (607). The center of one side wall of the first clamping block (602) and the other side wall of the second clamping block (606) are both provided with screw holes (613). The two screw holes (613) are threadedly connected to the two screws (612).

3. The gooseneck spare tire fixing structure for a semi-trailer according to claim 2, characterized in that: The two screws (612) are rotatably connected to the first fixing block (601) and the second fixing block (607) respectively through bearings, and each of the upper and lower end faces is provided with a handle (614) near one end.

4. The gooseneck spare tire fixing structure for a semi-trailer according to claim 1, characterized in that: A bolt (615) is provided at one side of the center of the front end face of the second fixing block (607). The end of the bolt (615) passes through the front end face of the second fixing block (607) and extends to the rear end face of the second fixing block (607), and is threadedly connected to the second fixing block (607). An adsorption plate (616) is provided at the end of the bolt (615).

5. The gooseneck spare tire fixing structure for a semi-trailer according to claim 1, characterized in that: The two adjustment devices (3) include two fixed rails (301). The two fixed rails (301) are respectively set at the upper and lower center of the rear inner wall of the square groove (2). The two fixed rails (301) are slidably connected to the inner center of both sides. The two fixed rails (301) are arranged horizontally at the center of the rear side wall and the four slide rails (302) are provided with pin holes (303) at the center of the rear inner wall. The four slide rails (302) are provided with locking pins (304) at the center of the rear inner wall.

6. The gooseneck spare tire fixing structure for a semi-trailer according to claim 5, characterized in that: The front ends of the two slide rails (302) on one side and the two slide rails (302) on the other side are fixedly connected to the two clamping blocks (4) respectively, and the four locking pins (304) pass through the two pin holes (303) in sequence to the inside of the pin holes (303).

7. The gooseneck spare tire fixing structure for a semi-trailer according to claim 1, characterized in that: Both clamps (4) are arc-shaped.

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