Pre-tightening type universal joint dust cover

Abstract

The utility model relates to the technical field of universal joint dust covers, and discloses a pre-tightening type universal joint dust cover which comprises a universal joint dust cover body, fixing blocks are welded to the left end and the right end of the universal joint dust cover body, connecting screw rods are in threaded connection with the interiors of the fixing blocks, and limiting nuts are in threaded connection with the surfaces of the connecting screw rods. According to the universal joint dust cover, the fixing block is arranged on the surface of the universal joint dust cover, when the fixing block is matched with the connecting screw rod to rotate in the fixing block, the universal joint dust cover and the protective shell in the sliding groove can be subjected to position height sliding lifting, and heat dissipation is achieved through the heat dissipation groove formed in the surface of the universal joint dust cover; when the protection shell slides out of the surface of the universal joint dust cover, heat dissipation can be conducted on the interior of the universal joint dust cover through the heat dissipation grooves, and the connection clamping ring in the universal joint dust cover can be conveniently installed and fixed by arranging the connection clamping ring and the installation clamping plate in cooperation with a fixing stud on the surface.

Description

Technical Field

[0001] The utility model relates to the technical field of universal joint dust covers, in particular to a pre-tightening universal joint dust cover. Background Art

[0002] The universal joint dust cover is an important component in the automotive transmission system. It is mainly used to protect the universal joint from dust, sand and other impurities, and also prevent the leakage of lubricating grease, ensuring the normal operation of the universal joint and extending its service life. The universal joint dust cover is generally made of rubber or other wear-resistant materials, including a large-diameter end, a small-diameter end and a corrugated pipe section connecting the two. The new dust cover may also include a connecting sleeve to adapt to different-shaped universal joints.

[0003] Comparative Publication No. 201821897710.9 discloses a universal joint dust cover, which includes a straight section, a V-shaped section, a notch, a straight groove surface, an inclined groove surface and a straight-section annular groove. The straight section and the V-shaped section are connected to form the main structure. A straight-section annular groove is provided on the inner wall of the straight section. Eight notches, four straight groove surfaces and four inclined groove surfaces are evenly distributed on the circumference of the upper mouth of the straight-section annular groove. The notches are arranged at the joints of the four straight groove surfaces and the four inclined groove surfaces. The straight groove surface is perpendicular to the straight section and serves as an assembly and fixing function. The inclined groove surface forms an obtuse angle α with the straight section and serves as a demolding function. The traditional skeleton structure is cancelled, reducing the number of parts and processes and lowering the cost; there are more choices for the sealing material and hardness, reducing the process difficulty; the structure design of the dust cover can be diversified, and there are no great restrictions on the structures and dimensions of the mating cross shaft and bearing outer ring; the dust cover mainly cooperates with the bearing outer ring, with a simple structure, firm cooperation and no falling off.

[0004] For this universal joint dust cover, the structure design of the dust cover can be diversified, and there are no great restrictions on the structures and dimensions of the mating cross shaft and bearing outer ring; the dust cover mainly cooperates with the bearing outer ring, with a simple structure, firm cooperation and no falling off. However, when the equipment is used by workers for a long time, it is not convenient to discharge the heat generated by the product and the operation convenience during the overall installation and fixing of the equipment. Summary of the Invention

[0005] To solve the above technical problems, the utility model provides a pre-tightening universal joint dust cover.

[0006] The utility model is realized by the following technical solutions: A pre-tightening universal joint dust cover includes a universal joint dust cover. Fixed blocks are welded to the left end and the right end of the universal joint dust cover. A connecting screw is threadedly connected inside the fixed block, and a limiting nut is threadedly connected to the surface of the connecting screw.

[0007] The bottom end of the connecting screw is threadedly connected with a protective shell. The top end of the universal joint dust cover is welded with a fixing ring. A fixing stud is inserted into the interior of the fixing ring. The surface of the fixing stud is threadedly connected with a mounting clamping plate. The interior of the mounting clamping plate is threadedly connected with a connecting clamping ring. The interior of the connecting clamping ring is threadedly connected with a connecting column. Heat dissipation grooves are formed in the interior of the universal joint dust cover. Sliding grooves are formed at the left end and the right end of the universal joint dust cover. Mounting grooves are formed in the interior of the fixing ring. Limiting holes are formed in the interior of the fixing ring.

[0008] Through the above technical solution, the number of the heat dissipation grooves is set to four, which can cooperate with the protective shell sliding on the surface of the universal joint dust cover to adjust the number of the heat dissipation grooves, facilitating the discharge of the heat generated inside the universal joint dust cover.

[0009] As a further improvement of the above solution, the limiting holes are symmetrically distributed with the universal joint dust cover as the center, the fixing blocks are symmetrically distributed with the universal joint dust cover as the center, and a fixing stud is threadedly connected to the interior of the limiting hole.

[0010] As a further improvement of the above solution, the fixing studs are symmetrically distributed with the universal joint dust cover as the center. A connecting clamping ring is arranged at the top end of the fixing stud, and a connecting column is arranged in the interior of the fixing ring.

[0011] As a further improvement of the above solution, the connecting screws are symmetrically distributed with the universal joint dust cover as the center. The limiting nuts are arranged at the top ends of the fixing blocks, and the limiting nuts are symmetrically distributed with the universal joint dust cover as the center.

[0012] As a further improvement of the above solution, the heat dissipation grooves are symmetrically distributed with the universal joint dust cover as the center, the sliding grooves are symmetrically distributed with the universal joint dust cover as the center, and a protective shell is slidably connected to the interior of the sliding groove.

[0013] As a further improvement of the above solution, a protective shell is slidably connected to the interior of the universal joint dust cover. The connecting clamping ring is arranged at the top end of the fixing ring, and the mounting clamping plate is arranged at the top end of the universal joint dust cover.

[0014] Through the above technical solution, the fixing ring can cooperate with the internal limiting holes and mounting grooves to connect and fix the top mounting clamping plate and the fixing stud.

[0015] As a further improvement of the above solution, connecting screws are arranged on the left side and the right side of the universal joint dust cover, and the fixing studs are arranged at the top end of the universal joint dust cover.

[0016] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0017] The utility model can slide and lift the position height of the universal joint dust cover and the protective shell inside the sliding groove by setting the fixing block on the surface of the universal joint dust cover, which can cooperate with the connecting screw rod to rotate inside the fixing block. By setting the heat dissipation grooves opened on the surface of the universal joint dust cover, when the protective shell slides out from the surface of the universal joint dust cover, the inside of the universal joint dust cover can be dissipated heat through the heat dissipation grooves. By setting the connecting clamping ring and the mounting clamping plate, the internal connecting clamping ring can be conveniently installed and fixed by cooperating with the fixing stud on the surface, improving the operation convenience during the connection and fixing of the equipment and the stability after installation.

[0018] The utility model can increase the stability after adjusting the protective shell to a suitable position by setting the sliding groove opened on the surface of the universal joint dust cover, which can cooperate with the connecting screw rod to drive the sliding and pulling of the protective shell, and then limiting and fixing by the limiting nut on the surface of the connecting screw rod. By setting the mounting groove and the limiting hole opened inside the fixing ring, the stability after connection can be increased when the connecting column is installed inside the fixing ring. Brief Description of the Drawings

[0019] Figure 1 is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 is a schematic diagram of the anatomical structure of the utility model;

[0021] Figure 3 is an exploded schematic diagram of the utility model;

[0022] Figure 4 is a schematic diagram of the bottom view structure of the utility model;

[0023] Figure 5 is a schematic diagram of the right view structure of the utility model.

[0024] Main Symbol Explanation:

[0025] 1. Universal joint dust cover; 2. Fixing block; 3. Connecting screw rod; 4. Limiting nut; 5. Protective shell; 6. Fixing ring; 7. Mounting clamping plate; 8. Fixing stud; 9. Connecting clamping ring; 10. Connecting column; 11. Heat dissipation groove; 12. Sliding groove; 13. Mounting groove; 14. Limiting hole. Detailed Embodiment

[0026] Next, in combination with the drawings and the specific embodiments, the utility model will be further described. It should be noted that on the premise of no conflict, the following described embodiments or technical features can be combined arbitrarily to form new embodiments. Embodiment

[0027] Please combine with Figures 1-5, A pre-tightening universal joint dust cover of this embodiment includes a universal joint dust cover 1. Fixed blocks 2 are welded to the left and right ends of the universal joint dust cover 1. A connecting screw 3 is threadedly connected inside the fixed block 2, and a limiting nut 4 is threadedly connected to the surface of the connecting screw 3;

[0028] The bottom end of the connecting screw 3 is threadedly connected with a protective shell 5. A fixed ring 6 is welded to the top end of the universal joint dust cover 1. A fixed stud 8 is inserted into the fixed ring 6. An installation card plate 7 is threadedly connected to the surface of the fixed stud 8. A connecting snap ring 9 is threadedly connected inside the installation card plate 7. A connecting column 10 is threadedly connected inside the connecting snap ring 9. Heat dissipation grooves 11 are opened inside the universal joint dust cover 1. Sliding grooves 12 are opened at the left and right ends of the universal joint dust cover 1. An installation groove 13 is opened inside the fixed ring 6. A limiting hole 14 is opened inside the fixed ring 6. By providing the fixed block 2 on the surface of the universal joint dust cover 1, when the connecting screw 3 rotates inside the fixed block 2, the position height of the protective shell 5 inside the universal joint dust cover 1 and the sliding groove 12 can be slid up and down. By providing the heat dissipation grooves 11 opened on the surface of the universal joint dust cover 1, when the protective shell 5 slides out from the surface of the universal joint dust cover 1, the inside of the universal joint dust cover 1 can be dissipated heat through the heat dissipation grooves 11. By providing the connecting snap ring 9 and the installation card plate 7, the connecting snap ring 9 inside can be conveniently installed and fixed in cooperation with the fixed stud 8 on the surface, improving the operation convenience of the equipment during connection and fixing and the stability after installation.

[0029] The number of the heat dissipation grooves 11 is set to four, which can cooperate with the protective shell 5 sliding on the surface of the universal joint dust cover 1 to adjust the number of the heat dissipation grooves 11, facilitating the discharge of the heat generated inside the universal joint dust cover 1.

[0030] The limiting holes 14 are symmetrically distributed with the universal joint dust cover 1 as the center, and the fixed blocks 2 are symmetrically distributed with the universal joint dust cover 1 as the center. A fixed stud 8 is threadedly connected inside the limiting hole 14.

[0031] The fixed studs 8 are symmetrically distributed with the universal joint dust cover 1 as the center. A connecting snap ring 9 is arranged at the top end of the fixed stud 8, and a connecting column 10 is arranged inside the fixed ring 6.

[0032] The connecting screw rods 3 are symmetrically distributed around the universal joint dust cover 1. The limit nuts 4 are arranged at the top of the fixed blocks 2 and are symmetrically distributed around the universal joint dust cover 1. By providing the sliding grooves 12 formed on the surface of the universal joint dust cover 1, when the connecting screw rods 3 cooperate to drive the sliding and pulling of the protection shell 5, the limit nuts 4 on the surface of the connecting screw rods 3 are used for limiting and fixing, which increases the stability after the protection shell 5 is adjusted to a proper position. By providing the installation grooves 13 and the limit holes 14 formed inside the fixed ring 6, when the connecting column 10 is installed inside the fixed ring 6, the stability after the connection is completed is increased.

[0033] The heat dissipation grooves 11 are symmetrically distributed around the universal joint dust cover 1. The sliding grooves 12 are symmetrically distributed around the universal joint dust cover 1. The protection shell 5 is slidably connected inside the sliding grooves 12.

[0034] The protection shell 5 is slidably connected inside the universal joint dust cover 1. The connecting clamping ring 9 is arranged at the top of the fixed ring 6, and the installation clamping plate 7 is arranged at the top of the universal joint dust cover 1.

[0035] The fixed ring 6 can cooperate with the internal limit holes 14 and installation grooves 13 to connect and fix the installation clamping plate 7 and the fixed stud 8 at the top.

[0036] The connecting screw rods 3 are arranged on the left and right sides of the universal joint dust cover 1, and the fixed studs 8 are arranged at the top of the universal joint dust cover 1.

[0037] The implementation principle of a pre-tightening universal joint dust cover in the embodiment of the present application is as follows: Place the device in a proper position. By providing the fixed blocks 2 on the surface of the universal joint dust cover 1, when the connecting screw rods 3 rotate inside the fixed blocks 2, the position height of the universal joint dust cover 1 and the protection shell 5 inside the sliding grooves 12 can be slid up and down. By providing the heat dissipation grooves 11 formed on the surface of the universal joint dust cover 1, when the protection shell 5 slides out from the surface of the universal joint dust cover 1, the inside of the universal joint dust cover 1 can be dissipated heat through the heat dissipation grooves 11. By providing the connecting clamping ring 9 and the installation clamping plate 7, the internal connecting clamping ring 9 can be conveniently installed and fixed by cooperating with the fixed studs 8 on the surface, which improves the operation convenience during connection and fixation of the device and the stability after installation. By providing the sliding grooves 12 formed on the surface of the universal joint dust cover 1, when the connecting screw rods 3 cooperate to drive the sliding and pulling of the protection shell 5, the limit nuts 4 on the surface of the connecting screw rods 3 are used for limiting and fixing, which increases the stability after the protection shell 5 is adjusted to a proper position. By providing the installation grooves 13 and the limit holes 14 formed inside the fixed ring 6, when the connecting column 10 is installed inside the fixed ring 6, the stability after the connection is completed is increased.

[0038] The above embodiments are only the preferred embodiments of the present utility model, and the scope of protection of the present utility model cannot be limited thereby. Any non-substantive changes and substitutions made by those skilled in the art based on the present utility model fall within the scope of protection required by the present utility model.

Claims

1. A pre-tightened universal joint dust cover, comprising a universal joint dust cover (1), wherein the left and right ends of the universal joint dust cover (1) are welded with fixing blocks (2), the inner thread of the fixing block (2) is connected to a connecting screw (3), and the surface of the connecting screw (3) is connected to a limiting nut (4) through a thread; It is characterized in that The bottom end of the connecting screw rod (3) is threadedly connected to a protective housing (5); the top end of the universal joint dust cover (1) is welded with a fixing ring (6); a fixing stud (8) is inserted into the interior of the fixing ring (6); a mounting clamp (7) is threadedly connected to the surface of the fixing stud (8); the interior of the mounting clamp (7) is threadedly connected to a connecting clamp ring (9); the interior of the connecting clamp ring (9) is threadedly connected to a connecting column (10); a heat dissipation groove (11) is provided inside the universal joint dust cover (1); sliding grooves (12) are provided at the left and right ends of the universal joint dust cover (1); a mounting groove (13) is provided inside the fixing ring (6); and a limiting hole (14) is provided inside the fixing ring (6).

2. A pre-tightened universal joint dust cover as claimed in claim 1, characterized in that: The limiting holes (14) are symmetrically distributed with the universal joint dust cover (1) as the center, the fixing blocks (2) are symmetrically distributed with the universal joint dust cover (1) as the center, and the internal threads of the limiting holes (14) are connected with fixing studs (8).

3. The pre-tightened universal joint dust cover according to claim 1, characterized in that: The fixing studs (8) are symmetrically distributed with the universal joint dust cover (1) as the center, a connecting clamp ring (9) is provided at the top end of the fixing studs (8), and a connecting column (10) is provided inside the fixing ring (6).

4. A pre-tightened universal joint dust cover as claimed in claim 3, characterized in that: The connecting screws (3) are symmetrically distributed with the universal joint dust cover (1) as the center, the limiting nuts (4) are arranged on the top of the fixing block (2), and the limiting nuts (4) are symmetrically distributed with the universal joint dust cover (1) as the center.

5. The pre-tightened universal joint dust cover according to claim 1, characterized in that: The heat dissipation grooves (11) are symmetrically distributed with the universal joint dust cover (1) as the center, the sliding grooves (12) are symmetrically distributed with the universal joint dust cover (1) as the center, and the interior of the sliding grooves (12) is slidably connected to a protective housing (5).

6. A pre-tightened universal joint dust cover as claimed in claim 5, characterized in that: The interior of the universal joint dust cover (1) is slidably connected to a protective housing (5), the connecting clamp ring (9) is arranged on the top of the fixing ring (6), and the mounting clamp plate (7) is arranged on the top of the universal joint dust cover (1).

7. A pre-tightened universal joint dust cover as claimed in claim 6, characterized in that: Connecting screws (3) are arranged on the left and right sides of the universal joint dust cover (1), and the fixing studs (8) are arranged on the top end of the universal joint dust cover (1).

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