Hub end cover with sealing structure

Abstract

The utility model discloses a hub end cover with a sealing structure, which comprises a hub end cover body, the top of the hub end cover body is screwed with an upper cover, the bottom of the hub end cover body is provided with an end cover connecting part, and the bottom of the hub end cover body is arranged on an automobile hub through the end cover connecting part. A sealing connecting structure is arranged on the end cover connecting part, a connecting flange is arranged on the sealing connecting structure, and a sealing gasket A is installed at the bottom of the connecting flange. According to the hub with the sealing structure, the extension base, the extension opening, the butt joint hole and the butt joint column are combined together to form a positioning structure between the sealing gasket A and the sealing gasket B. The positioning structure enables the sealing gaskets to be rapidly and accurately placed at preset positions during installation, and extra time does not need to be spent on adjusting the states of the sealing gaskets. The uncertainty in the installation process is reduced, the installation speed and accuracy are improved, and the overall production or maintenance efficiency can be improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of automobile parts, concretely is a hub end cover with sealing structure. BACKGROUND

[0002] The hub end cover is a component installed on the outside of the hub, usually used to protect the components inside the hub, such as bearings, brake discs, etc., and also plays an aesthetic role; the following is the installation method of the hub end cover and the reason for setting the sealing gasket: before installing the hub end cover, the vehicle needs to be parked in a safe place and lifted using a jack so that the hub can be easily operated; then, use a socket wrench to loosen the nuts on the hub, but do not completely unscrew; before installing the new hub end cover, the hub surface needs to be cleaned to ensure that the end cover can be tightly attached to the hub; use a cleaner and a cloth to remove dust, oil stains and debris from the hub surface; align the new hub end cover with the installation position on the hub, then gently press the end cover to make it adhere to the hub; if the end cover is fixed by a buckle, make sure the buckle is correctly inserted into the card slot on the hub; if the end cover is fixed by a screw, use a screwdriver to tighten the screw; after installation, check whether the hub end cover is securely installed and whether it is flatly attached to the hub surface; if necessary, some adjustments can be made to ensure correct installation of the end cover.

[0003] The sealing gasket at the bottom of the hub end cover is prone to cracking after long-term use, and impurities can easily enter the hub; there are many problems that can easily cause cracking, such as during installation, the sealing gasket is not evenly placed in the sealing groove at the bottom of the hub end cover, and is twisted, folded or stretched, the sealing gasket cannot naturally adhere after installation, and additional stress is easily generated. SUMMARY

[0004] The utility model aims at providing a hub end cover with sealing structure to solve the defects mentioned in the background.

[0005] To achieve the above-mentioned purpose, a hub end cover with sealing structure is provided, which comprises a hub end cover body, an upper cover is screw-connected and installed on the top of the hub end cover body, an end cover connecting part is provided at the bottom of the hub end cover body, the hub end cover body is installed on the automobile hub through the end cover connecting part at the bottom, a sealing connecting structure is provided on the end cover connecting part, a connecting flange is provided on the sealing connecting structure, a sealing gasket A is installed at the bottom of the connecting flange, and a sealing gasket B is covered at the bottom of the sealing gasket A; the hub end cover body is sealingly installed on the automobile hub through the sealing connecting structure provided at the bottom.

[0006] Preferably, the sealing connection structure comprises a connecting flange, a sealing gasket A, an extension seat, a butt joint hole, a sealing gasket B, a butt joint column, a first through hole, a second through hole and an extension opening, and the axial section of the connecting flange, the sealing gasket A and the sealing gasket B is a concentric circle structure.

[0007] Preferably, a plurality of groups of connecting holes are uniformly arranged on the connecting flange, a plurality of groups of second through holes are uniformly arranged on the sealing gasket A, and a plurality of groups of first through holes are uniformly arranged on the sealing gasket B, and the connecting holes, the second through holes and the first through holes are provided in six groups.

[0008] Preferably, a plurality of groups of connecting holes are uniformly arranged on the connecting flange, a plurality of groups of second through holes are uniformly arranged on the sealing gasket A, and a plurality of groups of first through holes are uniformly arranged on the sealing gasket B, and the connecting holes, the second through holes and the first through holes are provided in six groups.

[0009] Preferably, six groups of extension openings are uniformly arranged on the bottom of the connecting flange, and six groups of extension seats are uniformly arranged on the surface of the sealing gasket A, the sizes of the extension seats and the extension openings are matched, and the six groups of extension seats are respectively inserted into the six groups of extension openings.

[0010] Preferably, the section of the extension seat and the extension opening is arc-shaped, six groups of butt joint holes are uniformly arranged on the sealing gasket A, the six groups of butt joint holes and the six groups of extension seats are alternately distributed, six groups of butt joint columns are uniformly arranged on the sealing gasket B, the six groups of butt joint columns and the six groups of first through holes are alternately arranged, the sizes of the butt joint columns and the butt joint holes are matched, and the six groups of butt joint columns are respectively inserted into the six groups of butt joint holes.

[0011] Preferably, the connecting flange and the sealing gasket A are positioned and assembled through the six groups of extension seats and the extension openings, and the sealing gasket A and the sealing gasket B are positioned and assembled through the six groups of butt joint holes and the butt joint columns.

[0012] Compared with the prior art, the utility model has the advantages that:

[0013] 1. The sealing gasket can be fully and uniformly attached to the contact surface between the hub end cover body and the hub in the unfolded state, avoiding local wrinkles or distortion, thereby ensuring uniform stress on each part of the sealing gasket when it is subjected to extrusion, effectively preventing sealing failure caused by uneven stress, ensuring good sealing effect and reducing the probability of cracking.

[0014] 2. This utility model uses an extension seat, an extension opening, a mating hole, and a mating post to form a positioning structure between sealing gasket A and sealing gasket B. The positioning structure allows the sealing gasket to be quickly and accurately placed in the predetermined position during installation, without spending extra time adjusting the state of the sealing gasket, reducing uncertainty in the installation process, improving the speed and accuracy of installation, and helping to improve the overall production or maintenance efficiency. Attached Figure Description

[0015] Figure 1 This is a front view schematic diagram of the structure of this utility model;

[0016] Figure 2 for Figure 1 A bottom view;

[0017] Figure 3 This is a schematic diagram of a sealed connection structure;

[0018] Figure 4 for Figure 3 A sectional view;

[0019] Figure 5 for Figure 4 A bottom view.

[0020] The following are the labeling elements in the diagram: 1. Hub end cover body; 11. Top cover; 2. End cover connecting part; 3. Fixing bolt; 4. Sealing plate; 5. Sealing connection structure; 51. Connecting flange; 52. Sealing gasket A; 53. Extension seat; 54. Butt hole; 55. Sealing gasket B; 56. Butt post; 57. First through hole; 58. Second through hole; 59. Extension opening. Detailed Implementation

[0021] Please see Figures 1-5 This utility model provides a wheel hub end cap with a sealing structure, including a wheel hub end cap body 1, a top cover 11 screwed onto the top of the wheel hub end cap body 1, an end cap connecting part 2 provided at the bottom of the wheel hub end cap body 1, the bottom of the wheel hub end cap body 1 being mounted on the car wheel hub through the end cap connecting part 2, a sealing connection structure 5 provided on the end cap connecting part 2, a connecting flange 51 provided on the sealing connection structure 5, a sealing gasket A52 installed at the bottom of the connecting flange 51, and a sealing gasket B55 covering the bottom of the sealing gasket A52; the wheel hub end cap body 1 is sealed and mounted on the car wheel hub through the sealing connection structure 5 at the bottom.

[0022] Working principle: the hub end cover body 1 is sealed and installed on the automobile hub through the sealing connection structure 5 arranged at the bottom, at this time the sealing gasket is composed of two parts of sealing gasket A 52 and sealing gasket B 55 in a composite installation mode, sealing gasket A 52 and sealing gasket B 55 are interposed between the hub end cover body 1 and the hub, and the sealing gasket A 52 and the sealing gasket B 55 after being extruded seal the hub end cover body 1 and the hub; sealing gasket A 52 and sealing gasket B 55 form a double sealing structure, compared with a single sealing gasket, can more effectively block dust, moisture and impurities from entering the hub interior, or the lubricating oil in the hub interior from overflowing; during the driving process of the vehicle, the hub will be affected by various forces and different environmental conditions; the composite sealing gasket can better adapt to these complex working conditions, through the synergistic effect of the two layers of sealing gaskets, it can still maintain good sealing performance when the vehicle is vibrating, jolting or the temperature changes; the two sealing gaskets jointly bear the extrusion from the hub end cover body 1 and the hub, can disperse the pressure and reduce the pressure peak value borne by each sealing gasket; this helps to reduce the wear rate of the sealing gasket and prolong its service life; compared with some complex single sealing structure, the composite structure composed of two relatively simple sealing gaskets may be easier to install; the installer can more conveniently place the sealing gasket A 52 and the sealing gasket B 55 in the correct position respectively, reduce the installation difficulty and improve the installation efficiency; when maintaining, if one of the sealing gaskets is found to have a problem, such as sealing gasket A 52 is damaged, and sealing gasket B 55 can still work normally, then only the damaged sealing gasket A 52 can be replaced, without replacing the entire sealing system, thereby saving maintenance cost and time; the connecting flange 51 and the sealing gasket A 52 are positioned and assembled through six groups of extension seats 53 and extension openings 59; the sealing gasket A 52 and the sealing gasket B 55 are positioned and assembled through six groups of butt joint holes 54 and butt joint columns 56; so that the sealing gasket A 52 and the sealing gasket B 55 are in an expanded state when they are interposed between the hub end cover body 1 and the hub during installation;

[0023] The expanded state allows the sealing gasket to fully and uniformly adhere to the contact surface between the hub end cover body 1 and the hub, avoiding local wrinkles or distortions, thereby ensuring that the sealing gasket is uniformly stressed when subjected to pressure, effectively preventing sealing failure caused by uneven stress, ensuring good sealing effect, and reducing the probability of cracking; the expanded sealing gasket can make closer contact with the surfaces of the hub end cover and the hub, filling small gaps and uneven places, reducing leakage channels, and better blocking dust, moisture, and impurities from entering the hub interior, protecting the bearings and other components inside the hub from external pollutants; the extension seat 53, the extension opening 59, the butt joint hole 54, and the butt joint column 56 together form a positioning structure between the sealing gasket A 52 and the sealing gasket B 55, which allows the sealing gasket to be quickly and accurately placed in the predetermined position during installation, without the need for additional time to adjust the state of the sealing gasket, reducing uncertainty during installation and improving installation speed and accuracy, which helps to improve overall production or maintenance efficiency; since the sealing gasket can be in the ideal expanded state during installation, the need for rework due to improper installation that causes damage to the sealing gasket or poor sealing effect is reduced, saving manpower, material resources, and time costs; being in the expanded state during installation can avoid excessive stretching, twisting, or folding of the sealing gasket A 52 and the sealing gasket B 55 during installation, thereby reducing stress concentration inside the sealing gasket A 52 and the sealing gasket B 55; lower stress levels help to slow down the aging and fatigue process of the sealing gasket A 52 and the sealing gasket B 55, extending their service life; the uniformly expanded sealing gasket A 52 and the sealing gasket B 55 have more uniform friction with the hub end cover and the hub during operation, which will not cause excessive wear in some parts due to local folding or protrusions, which is beneficial to maintaining the integrity and performance stability of the sealing gasket, further extending its effective service life.

[0024] As a preferred embodiment, the sealing connection structure 5 includes a connecting flange 51, a sealing gasket A 52, an extension seat 53, a butt joint hole 54, a sealing gasket B 55, a butt joint column 56, a first perforation 57, a second perforation 58, and an extension opening 59, and the axial section of the connecting flange 51, the sealing gasket A 52, and the sealing gasket B 55 is a concentric circle structure.

[0025] As a preferred embodiment, a plurality of groups of connecting holes are uniformly provided on the connecting flange 51, a plurality of groups of second perforations 58 are uniformly provided on the sealing gasket A 52, and a plurality of groups of first perforations 57 are uniformly provided on the sealing gasket B 55, and six groups of connecting holes, second perforations 58, and first perforations 57 are provided.

[0026] As a preferred embodiment, a fixing bolt 3 is inserted into the connecting hole, and the fixing bolt 3 is screwed and fixed on the automobile hub in sequence through the second perforation 58 and the first perforation 57, and a sealing sheet 4 is installed on the fixing bolt 3.

[0027] As a preferable implementation, the bottom of the connecting flange 51 is uniformly provided with six sets of extension openings 59, and the surface of the sealing gasket A 52 is uniformly provided with six sets of extension seats 53, the sizes of the extension seats 53 and the extension openings 59 are matched, and the six sets of extension seats 53 are respectively inserted into the six sets of extension openings 59.

[0028] As a preferable implementation, the section of the extension seat 53 and the extension opening 59 is arc-shaped, six sets of butt joint holes 54 are uniformly provided on the sealing gasket A 52, the six sets of butt joint holes 54 are alternately distributed with the six sets of extension seats 53, six sets of butt joint columns 56 are uniformly provided on the sealing gasket B 55, the six sets of butt joint columns 56 are alternately provided with the six sets of first through holes 57, the sizes of the butt joint column 56 and the butt joint hole 54 are matched, and the six sets of butt joint columns 56 are respectively inserted into the six sets of butt joint holes 54.

[0029] As a preferable implementation, the connecting flange 51 and the sealing gasket A 52 are positioned and assembled through the six sets of extension seats 53 and the extension openings 59, and the sealing gasket A 52 and the sealing gasket B 55 are positioned and assembled through the six sets of butt joint holes 54 and the butt joint columns 56.

Claims

1. A hub end cap having a sealing structure, comprising a hub end cap body (1), characterized in that: The hub end cover body (1) top is screwed with an upper cover (11), the bottom of the hub end cover body (1) is provided with an end cover connecting part (2), the hub end cover body (1) bottom is installed on the automobile hub through the end cover connecting part (2), the end cover connecting part (2) is provided with a sealing connection structure (5), the sealing connection structure (5) is provided with a connecting flange (51), the connecting flange (51) bottom is installed with a sealing pad A (52), the bottom of the sealing pad A (52) is covered with a sealing pad B (55); the hub end cover body (1) is sealedly installed on the automobile hub through the sealing connection structure (5) arranged at the bottom.

2. The hub cap with a sealing structure according to claim 1, characterized in that: The sealing connection structure (5) includes a connecting flange (51), a sealing pad A (52), an extension seat (53), a butt joint hole (54), a sealing pad B (55), a butt joint column (56), a first perforation (57), a second perforation (58) and an extension port (59), the axial section of the connecting flange (51), the sealing pad A (52) and the sealing pad B (55) is a concentric circle structure.

3. The hub cap with a sealing structure according to claim 2, characterized in that: The connecting flange (51) is uniformly provided with multiple groups of connecting holes, the sealing pad A (52) is uniformly provided with multiple groups of second perforations (58), and the sealing pad B (55) is uniformly provided with multiple groups of first perforations (57). The connecting holes, the second perforations (58) and the first perforations (57) are all provided with six groups.

4. The hub cap with a sealing structure according to claim 3, characterized in that: The inside of the connecting hole is inserted with a fixed bolt (3), the fixed bolt (3) passes through the second perforation (58) and the first perforation (57) in sequence and is screwed and fixed on the automobile hub, and the fixed bolt (3) is sleeved with a sealing sheet (4).

5. The hub cap with a sealing structure according to claim 2, characterized in that: The bottom of the connecting flange (51) is uniformly provided with six groups of extension ports (59), the surface of the sealing pad A (52) is uniformly provided with six groups of extension seats (53), the sizes of the extension seat (53) and the extension port (59) are matched, and the six groups of extension seats (53) are respectively inserted into the inside of the six groups of extension ports (59).

6. The hub cap with a sealing structure according to claim 2, characterized in that: The section of the extension seat (53) and the extension port (59) is arc-shaped, the sealing pad A (52) is uniformly provided with six groups of butt joint holes (54), the six groups of butt joint holes (54) and the six groups of extension seats (53) are alternately distributed, the sealing pad B (55) is uniformly provided with six groups of butt joint columns (56), the six groups of butt joint columns (56) and the six groups of first perforations (57) are alternately arranged, the size of the butt joint column (56) and the butt joint hole (54) is matched, and the six groups of butt joint columns (56) are respectively inserted into the inside of the six groups of butt joint holes (54).

7. The hub cap with a sealing structure according to claim 5, characterized in that: The connecting flange (51) and the sealing pad A (52) are positioned and assembled through the six groups of extension seats (53) and the extension ports (59), and the sealing pad A (52) and the sealing pad B (55) are positioned and assembled through the six groups of butt joint holes (54) and the butt joint columns (56).

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