Hub sealing cover

Abstract

The utility model provides a hub sealing cover, and relates to the field of hub sealing covers, the hub sealing cover comprises a hub sealing cover main body and a buckle which are arranged in the inner wall of one side of a hub main body, the hub sealing cover main body is fixedly arranged on the hub main body by means of the buckle through the arrangement of an adjusting sealing device, and the hub sealing cover main body can be adjusted in the using process. If the hub sealing cover main body and the rubber sealing ring are aged and deformed due to uneven stress along with the movement and temperature change of the wheel, the gland can be manually pressed to drive the first circular ring block to slide towards one end on the outer surface of the second circular ring block, so that the space between the first circular ring block and the second circular ring block is reduced; the hydraulic oil inside is extruded into the flow guide pipe and finally enters the rubber sealing ring, the rubber sealing ring is extruded and expanded, the outer surface of the rubber sealing ring can be tightly attached to the inner wall of the hub body again, the sealing adjusting effect is achieved, the gap of aging deformation is filled, the sealing performance of the hub sealing cover body is improved, and the service life of the hub sealing cover body is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of hub sealing cover especially a kind of hub sealing cover. BACKGROUND

[0002] Hub sealing cover is a component installed on vehicle hub, mainly used to close and protect the structure inside hub, prevent dust, moisture and other sundries from entering hub, while also help to protect the bearings and other important parts of vehicle wheel.

[0003] When installing hub sealing cover body on hub body for use, the common sealing mode of the existing hub sealing cover body is usually to install rubber sealing ring on one end outer surface, then fixed in the inner wall of hub body by extrusion to protect the inside of hub body from the invasion of pollutants, however, with the movement and temperature change of vehicle wheel, the hub sealing cover body may appear aging deformation due to uneven stress, which may cause the outer surface of hub sealing cover body and rubber sealing ring not to fit tightly with the inside of hub body, thereby reducing the sealing performance and service life of hub sealing cover body. SUMMARY

[0004] The technical problem to be solved by the utility model is that when installing hub sealing cover body on hub body for use, the common sealing mode of the existing hub sealing cover body is usually to install rubber sealing ring on one end outer surface, then fixed in the inner wall of hub body by extrusion to protect the inside of hub body from the invasion of pollutants, however, with the movement and temperature change of vehicle wheel, the hub sealing cover body may appear aging deformation due to uneven stress, which may cause the outer surface of hub sealing cover body and rubber sealing ring not to fit tightly with the inside of hub body, thereby reducing the sealing performance and service life of hub sealing cover body.

[0005] The technical scheme adopted by the utility model to solve its technical problem is: a kind of hub sealing cover, including the hub sealing cover body and buckle that are arranged in the inner wall of one side of hub body, one end of the hub sealing cover body is inserted in the inner wall of hub body and is fixed by buckle, the outer surface of one end of the hub sealing cover body is provided with adjusting sealing device, one side of the hub sealing cover body is provided with protection device, the adjusting sealing device can extrude the hydraulic oil in the inner wall of first annular block and second annular block into rubber sealing ring by guide pipe through pressing gland after the deformation of hub sealing cover body, so that it expands again and fits tightly with the inner wall of hub body to achieve the effect of adjusting sealing.

[0006] Preferably, the adjusting sealing device comprises a rubber sealing ring, a pressing cap, a first circular block, a second circular block and a flow guide pipe, the rubber sealing ring is sleeved and fixedly installed on the outer surface of one end of the hub sealing cover body, a groove is formed in one side of the hub sealing cover body, a limiting mechanism is arranged between the pressing cap and the groove, one end of the first circular block is fixedly installed in the inner wall of the pressing cap, one end of the second circular block is fixedly installed in the inner wall of the groove, the other end of the second circular block is slidably connected with the inner wall of the first circular block, the flow guide pipe is connected with the inner wall of the groove and the hub sealing cover body respectively, the two ends of the flow guide pipe are inserted into the inner wall of the second circular block and the rubber sealing ring respectively, and hydraulic oil is injected into the closed space formed by the pressing cap, the first circular block and the second circular block.

[0007] The above components achieve the effects that: by arranging the adjusting sealing device, when the hub sealing cover body is fixedly installed on the hub body by means of the buckle and used, if the hub sealing cover body and the rubber sealing ring are aged and deformed due to uneven force caused by wheel movement and temperature change, the pressing cap can be manually pressed to drive the first circular block to slide on the outer surface of the second circular block to one end, so as to reduce the space between the first circular block and the second circular block, so that the hydraulic oil in the space is pressed into the flow guide pipe and finally into the inside of the rubber sealing ring, the rubber sealing ring is pressed and expanded, the outer surface of the rubber sealing ring can be tightly attached to the inner wall of the hub body again to achieve the effect of adjusting sealing, the gap caused by aging and deformation is filled, and the sealing performance and service life of the hub sealing cover body are improved, and the rubber sealing ring after expansion is kept to achieve the effect of sealing by means of the limiting mechanism.

[0008] Preferably, the limiting mechanism comprises two clamping rods, one end of the clamping rod is fixedly connected with the outer surface of the pressing cap, the inner wall of the groove is centrally and symmetrically provided with a sliding groove, a plurality of clamping grooves are formed in one side of the inner wall of the sliding groove, and the clamping rod is inserted into the inner wall of the clamping groove and the sliding groove.

[0009] The above components achieve the effects that: by arranging the limiting mechanism, when the pressing cap is pressed, the clamping rod can be driven to slide downward in the inner wall of the sliding groove to a certain position, after the rubber sealing ring is expanded, the pressing cap can be rotated to a certain angle to drive the clamping rod to be clamped into the corresponding clamping groove, so as to limit the pressed pressing cap, and the rubber sealing ring after expansion is kept to achieve the effect of sealing.

[0010] Preferably, the inner wall of the clamping groove is fixedly connected with limiting blocks on both sides, the longitudinal section of the limiting block is trapezoidal, and the limiting block is made of elastic silica gel.

[0011] The effect achieved by the above component is that: by arranging the limiting block, the area of the inner wall of the slot near the one end of the slot is reduced, so that the clamping rod is not easy to slide out after being forced to clamp into the slot, and the firmness of the limiting is improved.

[0012] Preferably, one side of the pressing cover is fixedly connected with a plurality of anti-skid blocks, and the plurality of anti-skid blocks are arranged at equal distances.

[0013] The effect achieved by the above component is that: by arranging the anti-skid block, the contact friction force of one side of the pressing cover is increased, so that the pressing cover is convenient to press and rotate manually, and the slipping phenomenon is not easy to occur.

[0014] Preferably, the protection device comprises a protection cover and a bolt, one side of the protection cover is rotatably connected with one side of the hub sealing cover body, one side of the protection cover is fixedly connected with a threaded hole block, one side of the hub sealing cover body is provided with a threaded groove, and one end of the bolt is screwedly inserted into the inner walls of the threaded hole block and the threaded groove.

[0015] The effect achieved by the above component is that: by arranging the protection device, when the adjusting sealing device on the hub sealing cover body is installed or not used, in order to avoid damage of the pressing cover caused by collision, the protection cover can be rotated to a certain angle on one side of the hub sealing cover body, the pressing cover is covered and the threaded hole block on the outer surface thereof is aligned with the threaded hole, then the bolt is screwedly inserted into the inner walls of the threaded hole block and the threaded groove to fix and limit the protection cover, so that the outer surface of the pressing cover is protected, and the pressing cover is not easy to be damaged when colliding.

[0016] Preferably, one side of the protection cover is fixedly connected with a supporting block, and one side of the supporting block abuts against one side of the hub sealing cover body.

[0017] The effect achieved by the above component is that: by arranging the supporting block, one end and one side of the protection cover are supported and reinforced, and the protection effect is improved.

[0018] Preferably, an outer surface of one end of the protection cover is fixedly connected with a bearing, and an outer ring of the bearing is fixedly connected with one side of the hub sealing cover body.

[0019] The effect achieved by the above component is that: by arranging the bearing, the rotating wear between one end of the protection cover and one side of the hub sealing cover body is reduced, and the service life is improved while the protection cover rotates.

[0020] The beneficial effects of the utility model are:

[0021] By setting the adjusting sealing device, in the use process of fixing and installing the hub sealing cover body on the hub body by the buckle, if the hub sealing cover body and the rubber sealing ring are aged and deformed due to uneven force with the movement of the wheel and the change of temperature, the gland can be manually pressed, the first annular block is driven to slide on the outer surface of the second annular block to one end, the space between the first annular block and the second annular block is reduced, the hydraulic oil in the space is extruded into the flow guide pipe, finally enters the inside of the rubber sealing ring, the rubber sealing ring is extruded and expanded, the outer surface of the rubber sealing ring can be attached to the inner wall of the hub body again to achieve the effect of adjusting the sealing, the aging and deformation gap is filled, the sealing performance and service life of the hub sealing cover body are improved, the rubber sealing ring after expansion is limited and fixed by the limiting mechanism, and the sealing effect is maintained. BRIEF DESCRIPTION OF DRAWINGS

[0022] The utility model is further explained below in combination with the drawings and examples.

[0023] Figure 1 It is the structural schematic diagram of the utility model.

[0024] Figure 2 It is the three-dimensional structure schematic diagram of the utility model hub sealing cover body;

[0025] Figure 3 It is Figure 2 The three-dimensional schematic diagram of the local structure;

[0026] Figure 4 It is the three-dimensional structure schematic diagram of the utility model protective cover.

[0027] Legend: 1, hub sealing cover body; 2, adjusting sealing device; 3, protective device; 4, hub body; 5, buckle; 21, rubber sealing ring; 22, recess; 23, flow guide pipe; 24, gland; 25, first annular block; 26, second annular block; 27, limiting mechanism; 271, sliding groove; 272, clamping groove; 273, clamping rod; 274, limiting block; 28, anti-skid block; 31, threaded groove; 32, protective cover; 33, threaded hole block; 34, bolt; 35, support block; 36, bearing. DETAILED DESCRIPTION

[0028] The utility model will be further explained in combination with the drawings. These drawings are all simplified schematic diagrams, only the basic structure of the utility model is schematically shown, therefore it only shows the structure related to the utility model.

[0029] In the description of the utility model, need explaining, unless another explicit provision and limitation, term '' connected '' '' connection '' should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connected, can be mechanical connection, also can be electrical connection, can be directly connected, also can pass through intermediate medium indirectly connect.

[0030] Figures 1-4 The utility model discloses a kind of hub sealing covers, including the hub sealing cover main body 1 and buckle 5 set in the inner wall of one side of hub main body 4, one end of hub sealing cover main body 1 is inserted in the inner wall of hub main body 4 and is fixed by means of buckle 5, the outer surface of one end of hub sealing cover main body 1 is provided with adjusting sealing device 2, the one side of hub sealing cover main body 1 is provided with protection device 3, adjusting sealing device 2 can be after the deformation of hub sealing cover main body 1, by pressing gland 24, the hydraulic oil in the inner wall of first annular block 25 and second annular block 26 is extruded into rubber seal ring 21 by flow guide pipe 23, so that it occurs expansion again and the inner wall of hub main body 4 is closely attached to reach the effect of adjusting seal.

[0031] Figure 2 And Figure 3The adjusting sealing device 2 shown includes a rubber sealing ring 21, a gland 24, a first circular block 25, a second circular block 26 and a flow guide pipe 23, the rubber sealing ring 21 is sleeved and fixedly installed on one end of the outer surface of the hub sealing cover body 1, a recess 22 is formed on one side of the hub sealing cover body 1, a limiting mechanism 27 is arranged between the gland 24 and the recess 22, one end of the first circular block 25 is fixedly installed in the inner wall of the gland 24, one end of the second circular block 26 is fixedly installed in the inner wall of the recess 22, the other end of the second circular block 26 is in sliding connection with the inner wall of the first circular block 25, the two ends of the flow guide pipe 23 are respectively connected with the inner wall of the recess 22 and the hub sealing cover body 1, the two ends of the flow guide pipe 23 are respectively inserted into the inner wall of the second circular block 26 and the rubber sealing ring 21, and hydraulic oil is injected into the closed space formed between the gland 24, the first circular block 25 and the second circular block 26. In the use process of fixing and installing the hub sealing cover body 1 on the hub body 4 by means of the buckle 5, if the hub sealing cover body 1 and the rubber sealing ring 21 are aged and deformed due to uneven force with the movement of the wheel and the change of temperature, the gland 24 can be manually pressed, the first circular block 25 is driven to slide on the outer surface of the second circular block 26 to one end, the space between the first circular block 25 and the second circular block 26 is reduced, the hydraulic oil in the space is extruded into the flow guide pipe 23, and finally into the inside of the rubber sealing ring 21, the rubber sealing ring 21 is extruded and expanded, the outer surface of the rubber sealing ring 21 can be tightly attached to the inner wall of the hub body 4 again to achieve the effect of adjusting the sealing, the gap caused by aging and deformation is filled, and the sealing performance and service life of the hub sealing cover body 1 are improved. At this time, the limiting mechanism 27 is used to limit and fix the gland 24, so that the rubber sealing ring 21 after expansion can maintain the sealing effect. The limiting mechanism 27 includes two clamping rods 273, one end of the clamping rod 273 is fixedly connected with the outer surface of the gland 24, the inner wall of the recess 22 is centrally and symmetrically provided with a sliding groove 271, a plurality of clamping grooves 272 are formed in one side of the inner wall of the sliding groove 271, and the clamping rod 273 is inserted into the inner wall of the clamping groove 272 and the sliding groove 271. When the gland 24 is pressed, the clamping rod 273 can be driven to slide downward in the inner wall of the sliding groove 271 to a certain position, after the rubber sealing ring 21 is expanded, the gland 24 can be rotated to a certain angle, the clamping rod 273 is clamped into the corresponding clamping groove 272, the pressed gland 24 is limited, and the rubber sealing ring 21 after expansion can maintain the sealing effect.

[0032] Figure 2 and Figure 3The inner wall of the shown card slot 272 is fixedly connected with a limiting block 274 on both sides, the longitudinal section of the limiting block 274 is trapezoidal, and the limiting block 274 is made of elastic silica gel. By arranging the limiting block 274, the area of the inner wall of the one end of the card slot 272 close to the sliding groove 271 can be reduced, so that the clamping rod 273 is not easy to slide out after being forced to clamp into the card slot 272, and the firmness of the limiting is improved. The side of the gland 24 is fixedly connected with a plurality of anti-skid blocks 28, and the plurality of anti-skid blocks 28 are arranged at equal distances. By arranging the anti-skid blocks 28, the contact friction force of one side of the gland 24 can be increased, which facilitates manual pressing and rotating, and the skidding phenomenon is not easy to occur.

[0033] Figure 4 The shown protection device 3 includes a protective cover 32 and a bolt 34, one side of the protective cover 32 is rotatably connected with one side of the hub sealing cover body 1, one side of the protective cover 32 is fixedly connected with a threaded hole block 33, one side of the hub sealing cover body 1 is provided with a threaded groove 31, and one end of the bolt 34 is screw inserted into the inner walls of the threaded hole block 33 and the threaded groove 31. When installing or not using the adjusting sealing device 2 on the hub sealing cover body 1, in order to avoid the collision damage of the gland 24, the protective cover 32 can be rotated to a certain angle on one side of the hub sealing cover body 1, the gland 24 is protected and the threaded hole block 33 on the outer surface thereof is aligned with the threaded hole, then the bolt 34 is screw inserted into the inner walls of the threaded hole block 33 and the threaded groove 31 to fix and limit the protective cover 32, so as to protect the outer surface of the gland 24 and prevent it from being damaged when colliding.

[0034] Figure 4 The shown protective cover 32 is fixedly connected with a support block 35 on one side, and the support block 35 abuts on one side of the hub sealing cover body 1. By arranging the support block 35, the one end and one side of the protective cover 32 can be supported and reinforced, and the protection effect is improved. The one end of the protective cover 32 is fixedly connected with a bearing 36 on the outer surface, and the outer ring of the bearing 36 is fixedly connected with one side of the hub sealing cover body 1. By arranging the bearing 36, the rotating wear between the one end of the protective cover 32 and one side of the hub sealing cover body 1 can be reduced, and the service life is improved while the protective cover 32 rotates.

[0035] Working principle: in the process of using the hub sealing cover body 1 fixedly installed on the hub body 4 by means of buckle 5, if the hub sealing cover body 1 and the rubber sealing ring 21 are unevenly stressed and aged and deformed due to the movement of the wheel and the change of temperature, the gland 24 can be manually pressed, the clamping rod 273 can be slid downward to a certain position in the inner wall of the sliding groove 271, the first annular block 25 can be slid to one end on the outer surface of the second annular block 26, the space between the first annular block 25 and the second annular block 26 is reduced, the hydraulic oil in the space is extruded into the flow guide pipe 23, finally enters the inside of the rubber sealing ring 21, the rubber sealing ring 21 is extruded and expanded, the outer surface of the rubber sealing ring 21 can be tightly attached to the inner wall of the hub body 4 again to achieve the effect of adjusting the sealing, the aging and deformation gap is filled, the sealing performance and service life of the hub sealing cover body 1 are improved, when the rubber sealing ring 21 is expanded, the gland 24 can be rotated to a certain angle, the clamping rod 273 is clamped into the corresponding clamping groove 272, the pressed gland 24 is limited, the expanded rubber sealing ring 21 is kept to achieve the sealing effect.

[0036] When the adjusting and sealing device 2 on the hub sealing cover body 1 is installed or not used, in order to avoid the collision and damage of the gland 24, the protective cover 32 can be rotated to a certain angle on one side of the hub sealing cover body 1, the gland 24 is protected and covered, the screw hole block 33 on the outer surface of the protective cover 32 is aligned with the threaded hole, the bolt 34 is screwed and inserted in the inner wall of the screw hole block 33 and the threaded groove 31 to fix and limit the protective cover 32, the outer surface of the gland 24 can be protected, and the gland 24 is not easy to be damaged when colliding.

[0037] Based on the above ideal embodiments of the present application, through the above description, relevant personnel can make various changes and modifications without deviating from the technical idea of the present application. The technical scope of the present application is not limited to the contents in the specification, and must be determined according to the scope of claims.

Claims

1. A hub sealing cover comprising a hub sealing cover body (1) and a buckle (5) arranged in the inner wall of one side of a hub body (4), characterized in that: One end of the hub sealing cover body (1) is inserted into the inner wall of the hub body (4) and is fixed by means of the buckle (5), and the outer surface of one end of the hub sealing cover body (1) is provided with an adjusting sealing device (2), and one side of the hub sealing cover body (1) is provided with a protection device (3), the adjusting sealing device (2) can press the first circular block (25) and the second circular block (26) in the inner wall of the hydraulic oil through the flow guide pipe (23) into the rubber sealing ring (21) after the deformation of the hub sealing cover body (1), so that it expands again and is tightly attached to the inner wall of the hub body (4) to achieve the effect of adjusting the sealing.

2. A hub seal cover according to claim 1, characterised in that: The adjusting sealing device (2) comprises a rubber sealing ring (21), a gland (24), a first circular block (25), a second circular block (26) and a flow guide pipe (23), the rubber sealing ring (21) is fixedly installed on one end of the outer surface of the hub sealing cover body (1), a groove (22) is formed in one side of the hub sealing cover body (1), a limiting mechanism (27) is arranged between the gland (24) and the groove (22), one end of the first circular block (25) is fixedly installed in the inner wall of the gland (24), one end of the second circular block (26) is fixedly installed in the inner wall of the groove (22), the other end of the second circular block (26) is slidably connected with the inner wall of the first circular block (25), the two ends of the flow guide pipe (23) are respectively connected with the inner wall of the groove (22) and the hub sealing cover body (1), the two ends of the flow guide pipe (23) are respectively inserted into the inner wall of the second circular block (26) and the rubber sealing ring (21), and the closed space formed between the gland (24), the first circular block (25) and the second circular block (26) is filled with hydraulic oil.

3. A hub seal cover according to claim 2, wherein: The limiting mechanism (27) comprises two clamping rods (273), one end of the clamping rod (273) is fixedly connected with the outer surface of the gland (24), the inner wall of the groove (22) is centrally and symmetrically provided with a sliding groove (271), a plurality of clamping grooves (272) are formed in one side of the inner wall of the sliding groove (271), and the clamping rod (273) is inserted into the inner wall of the clamping groove (272) and the sliding groove (271).

4. A hub seal cover according to claim 3, wherein: The inner wall of the clamping groove (272) is fixedly connected with a limiting block (274) on both sides, the longitudinal section of the limiting block (274) is trapezoidal, and the limiting block (274) is made of elastic silica gel.

5. A hub seal cover according to claim 2, wherein: A plurality of anti-skid blocks (28) are fixedly connected to one side of the gland (24), and the plurality of anti-skid blocks (28) are arranged at equal distances.

6. A hub seal cover according to claim 1, characterized in that: The protection device (3) comprises a protection cover (32) and a bolt (34), one end of the protection cover (32) is rotatably connected with one side of the hub sealing cover body (1), a screw hole block (33) is fixedly connected to one side of the protection cover (32), a threaded groove (31) is formed in one side of the hub sealing cover body (1), and one end of the bolt (34) is screwedly inserted into the inner wall of the screw hole block (33) and the threaded groove (31).

7. A hub seal cover according to claim 6, characterised in that: One side of the protective cover (32) is fixedly connected with a supporting block (35), one side of the supporting block (35) is abutted on one side of the hub sealing cover body (1).

8. A hub seal cover according to claim 6, characterized in that: One end of the outer surface of the protective cover (32) is fixedly connected with a bearing (36), the outer ring of the bearing (36) is fixedly connected with one side of the hub sealing cover body (1).

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