Extensible automobile U-shaped bolt

Abstract

The utility model provides an extendable automobile U-shaped bolt which comprises a U-shaped ring, a limiting plate and two first nuts, threads are arranged on the peripheries of the two ends of the U-shaped ring, receding holes are formed in the two ends of the limiting plate, the two ends of the U-shaped ring are sleeved with the receding holes in a sliding mode, and the two first nuts are connected to the two ends of the U-shaped ring in a threaded mode respectively. Two screws and two second nuts are further included, the two ends of the U-shaped ring are each provided with an inner hole structure, and threads are further machined on the hole wall of an inner hole; the two screw rods are screwed into the inner holes through the threads; the two second nuts are in one-to-one threaded connection with the two screw rods respectively; the outer diameter of the second nut is larger than the diameter of the receding hole. An installer can connect bolts with different lengths through threads, so that the length of the U-shaped bolt is increased to adapt to the fixing requirements of different sizes or specifications; and the size of the screw rod is far smaller than that of the U-shaped bolt, so that the screw rod is convenient to carry and reinstall.

Description

Technical Field

[0001] This utility model relates to the field of bolt technology, and in particular to an extendable automotive U-bolt. Background Technology

[0002] U-bolts, also known as saddle bolts, are non-standardized fasteners named for their distinctive U-shaped structure. Both ends of these bolts are threaded, allowing for a tight fit with a nut to achieve connection and fixation. They are widely used for securing various tubular objects, such as water pipes, and for connecting sheet-like objects, such as leaf springs in automobiles. The name "saddle bolt" comes from the way it secures objects, which resembles the posture of a person riding a horse; the tightening action of the threads at both ends, like a rider firmly seated on a horse, secures the object firmly.

[0003] However, existing technologies for U-bolts used on heavy-duty vehicles have certain limitations in the fixing process. Specifically, the length of these U-bolts is usually fixed and cannot be flexibly adjusted according to the size of the object to be fixed. This means that when dealing with objects of different sizes or specifications, it may be necessary to prepare multiple U-bolts of different lengths, and the shape of the U-bolts takes up a lot of space, making them inconvenient to use. Utility Model Content

[0004] This application provides an extendable automotive U-bolt, which has the effect of extending the length of the U-bolt.

[0005] This application provides an extendable automotive U-bolt with the following technical solution:

[0006] An extendable automotive U-bolt includes a U-shaped ring, a limiting plate, and two first nuts. The U-shaped ring has threads on its outer circumference at both ends. The limiting plate has clearance holes at both ends, which slide around the ends of the U-shaped ring. The two first nuts are threadedly connected to the ends of the U-shaped ring. The bolt also includes two screw rods and two second nuts. The U-shaped ring has an inner hole structure at both ends, with threads machined into the hole walls. The two screw rods are screwed into the inner hole structure. The two second nuts are threaded one-to-one onto the two screw rods, and the outer diameter of the second nuts is larger than the diameter of the clearance holes.

[0007] With the above technical solution, installers can use threaded connections to connect bolts of different lengths, thereby extending the length of the U-bolt to meet the fixing requirements of different sizes or specifications; and the volume of the screw is also much smaller than that of the U-bolt itself, making it easy to carry and reinstall.

[0008] Preferably, it also includes two support rods, the outer circumferential surfaces of the two support rods are threaded, and one end face of the support rod is provided with a cross-threaded groove; the length of the support rod is greater than the depth of the inner hole structure.

[0009] With the above technical solution, when it is not necessary to extend the U-bolt, the structural strength of the U-bolt can be ensured by connecting the support rod with a thread.

[0010] Preferably, the device further includes two collars, which are threaded one-to-one onto the two screws. The outer diameter of the collar is the same as the diameter of the clearance hole, and the thickness of the collar is less than the depth of the clearance hole.

[0011] Through the above technical solution, the collar is used to support the clearance hole and reduce the tendency of the limiting plate to move in the direction of the vertical screw length.

[0012] Preferably, a sponge pad is fixed to one end face of the screw and the support rod. The diameter of the sponge pad is smaller than the diameter of the inner hole structure, and the sponge pad is used to absorb lubricating oil.

[0013] With the above technical solution, during installation, the sponge pad that absorbs lubricating oil is squeezed by the screw or support rod, causing the lubricating oil to flow out, thereby lubricating the inner hole structure and preventing corrosion between the inner hole structure and the screw or support rod, which would make it difficult to remove.

[0014] Preferably, a film layer is provided on the outer side of the sponge pad.

[0015] Through the above technical solution, a large number of tiny pores are opened on the film layer. Through these tiny pores, the lubricating oil can be released slowly and continuously, thereby greatly extending the duration of the lubrication effect and ensuring the long-term stability of the lubrication performance.

[0016] Preferably, the limiting plate has two concave rings on the side facing the first nut at both ends, the two concave rings and the two clearance rings are arranged co-centered, the outer diameter of the concave rings is larger than the diameter of the clearance rings, and a rubber pad is installed inside the concave rings.

[0017] By using the above technical solution, a rubber pad is set on the limiting plate, thereby increasing the friction between the limiting plate and the first nut or the second nut, and improving the overall shock absorption.

[0018] Preferably, the U-shaped ring is made of 35GrMo alloy structural steel.

[0019] Through the above technical solution, compared with the existing U-bolts made of 45 steel or 40Gr material, the low-temperature performance of 35MrMo alloy structural steel is far superior to that of 45 steel or 40Gr.

[0020] The main technical effects of this utility model are reflected in the following aspects:

[0021] 1. This utility model extends the length of the U-bolt by using a threaded connection screw to accommodate fixing requirements of different sizes or specifications; the screw is also much smaller than the U-bolt itself, making it easy to carry and reinstall.

[0022] 2. This utility model, by setting a support rod, ensures the structural strength of the U-bolt by connecting the support rod through a thread when it is not necessary to extend the U-bolt;

[0023] 3. This utility model uses a sponge pad with lubricating oil installed at one end of the support rod or screw to lubricate the inner hole structure and prevent corrosion between the inner hole structure and the screw or support rod, which would make disassembly difficult. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application;

[0025] Figure 2 This is a schematic diagram of the support rod in an embodiment of this application.

[0026] Reference numerals in the attached drawings: 1. U-shaped ring; 11. Inner hole structure; 2. Limiting plate; 21. Clearance hole; 22. Concave ring; 3. First nut; 4. Screw; 5. Second nut; 6. Support rod; 61. Cross thread groove; 7. Collar; 8. Sponge pad; 81. Membrane layer; 9. Rubber pad. Detailed Implementation

[0027] The following is in conjunction with the appendix Figure 1-2 The specific embodiments of this utility model will be further described in detail to make the technical solution of this utility model easier to understand and master.

[0028] This application discloses an extendable automotive U-bolt:

[0029] Reference Figure 1-2An extendable automotive U-bolt includes a U-shaped ring 1, a limiting plate 2, and two first nuts 3. The U-shaped ring 1 has threads on its outer circumference at both ends. The limiting plate 2 has clearance holes 21 at both ends, which slide on the ends of the U-shaped ring 1. The two first nuts 3 are threaded onto the ends of the U-shaped ring 1. The device also includes two screws 4 and two second nuts 5. The U-shaped ring 1 has an inner hole structure 11 at both ends, with threads machined into the hole walls. The two screws 4 are screwed into the inner hole structure 11. The two second nuts 5 are threaded one-to-one onto the two screws 4, and the outer diameter of the second nuts 5 is larger than the diameter of the clearance holes 21. Installers can extend the length of the U-bolt by threading bolts of different lengths to accommodate different sizes or specifications of fixing requirements. The screws 4 are also much smaller than the U-bolt itself, making them easy to carry and reinstall.

[0030] Reference Figure 2 It also includes two support rods 6, with threads on the outer circumference of the two support rods 6, and a cross-shaped thread groove 61 on one end face of the support rod 6; the length of the support rod 6 is greater than the depth of the inner hole structure 11. When it is not necessary to extend the U-bolt, the structural strength of the U-bolt can be ensured by connecting the support rods 6 by thread.

[0031] Reference Figure 1 It also includes two collars 7, each threaded one-to-one onto one of the two screws 4. The outer diameter of the collars 7 is the same as the diameter of the clearance hole 21, and the thickness of the collars 7 is less than the depth of the clearance hole 21. Because the diameter of the clearance hole 21 is larger than the outer diameter of the screw 4, when the clearance hole 21 slides onto the screw 4, it tends to move along the length direction perpendicular to the screw 4. The collars 7 can then be used to support the clearance hole 21, reducing the tendency of the limiting plate 2 to move along the length direction perpendicular to the screw 4. At the same time, the thickness of the collars 7 is less than the depth of the clearance hole 21 to avoid affecting the tightening of the second nut 5 or the contact of the limiting plate 2 with the vehicle parts.

[0032] Reference Figure 2 A sponge pad 8 is fixed to one end face of the screw 4 and the support rod 6. The diameter of the sponge pad 8 is smaller than the diameter of the inner hole structure 11. The sponge pad 8 is used to absorb lubricating oil. During installation, the lubricating oil absorbed by the sponge pad 8 is squeezed by the screw 4 or the support rod 6, causing the lubricating oil to flow out, thereby lubricating the inner hole structure 11 and preventing corrosion between the inner hole structure 11 and the screw 4 or the support rod 6, which would make it difficult to remove. A film layer 81 is sleeved on the outside of the sponge pad 8. The film layer 81 has a large number of tiny pores. Through these tiny pores, the lubricating oil can be released slowly and continuously, thereby greatly extending the duration of the lubrication effect and ensuring the long-term stability of the lubrication performance.

[0033] Reference Figure 1Two concave rings 22 are formed on the side of the limiting plate 2 facing the first nut 3 at both ends. The two concave rings 22 are co-centered with the two clearance rings. The outer diameter of the concave rings 22 is larger than the diameter of the clearance rings. A rubber pad 9 is installed inside the concave rings 22. By installing the rubber pad 9 on the limiting plate 2, the friction between the limiting plate 2 and the first nut 3 or the second nut 5 is increased, and the overall shock absorption is improved.

[0034] U-ring 1 is made of 35MrMo alloy structural steel. As my country exports more and more commercial vehicles to countries, including many in high-latitude regions, the extreme climate conditions in these areas may bring even lower temperatures. Compared with existing U-bolts made of 45 steel or 40Gr materials, 35MrMo alloy structural steel has far superior low-temperature performance.

[0035] Of course, the above are just typical examples of this utility model. In addition, this utility model may have many other specific implementation methods. All technical solutions formed by equivalent substitution or equivalent transformation fall within the scope of protection claimed by this utility model.

Claims

1. An extendable automotive U-bolt, comprising a U-shaped ring (1), a limiting plate (2), and two first nuts (3), wherein the U-shaped ring (1) has threads on both outer circumferences at both ends, the limiting plate (2) has clearance holes (21) at both ends, the clearance holes (21) are fitted and slide on both ends of the U-shaped ring (1), and the two first nuts (3) are threadedly connected to both ends of the U-shaped ring (1); characterized in that, It also includes two screws (4) and two second nuts (5). The U-shaped ring (1) has an inner hole structure (11) at both ends. The inner hole structure (11) is also threaded on the hole wall. The two screws (4) are screwed into the inner hole structure (11) through the threads. The two second nuts (5) are threaded one-to-one on the two screws (4). The outer diameter of the second nut (5) is larger than the diameter of the clearance hole (21).

2. The extendable automotive U-bolt according to claim 1, characterized in that, It also includes two support rods (6), the outer circumferential surfaces of the two support rods (6) are threaded, and a cross thread groove (61) is opened on one end face of the support rod (6); the length of the support rod (6) is greater than the depth of the inner hole structure (11).

3. The extendable automotive U-bolt according to claim 1, characterized in that, It also includes two collars (7), which are threaded one-to-one onto two screws (4). The outer diameter of the collar (7) is the same as the diameter of the clearance hole (21), and the thickness of the collar (7) is less than the depth of the clearance hole (21).

4. An extendable automotive U-bolt according to claim 2, characterized in that, A sponge pad (8) is fixed to one end face of the screw (4) and the support rod (6). The diameter of the sponge pad (8) is smaller than the diameter of the inner hole structure (11). The sponge pad (8) is used to absorb lubricating oil.

5. An extendable automotive U-bolt according to claim 4, characterized in that, The outer side of the sponge pad (8) is covered with a membrane layer (81).

6. An extendable automotive U-bolt according to claim 1, characterized in that, The limiting plate (2) has two concave rings (22) on the side facing the first nut (3) at both ends. The two concave rings (22) and the two clearance rings are arranged in the same circle. The outer diameter of the concave ring (22) is larger than the diameter of the clearance ring. A rubber pad (9) is installed inside the concave ring (22).

7. An extendable automotive U-bolt according to claim 1, characterized in that, The U-shaped ring (1) is made of 35GrMo alloy structural steel.

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