Hub with sealing plugs on end covers

Abstract

The utility model discloses a hub with an end cover provided with a sealing plug, belongs to the technical field of hubs, and aims to solve the problems that the connection between the hub end cover and the sealing plug is mostly buckle connection, the sealing plug is inconvenient to disassemble, and the stability of the connection mode is poorer. An end cover body is fixed to the surface of one end of the hub body, a sealing cover is inserted into an inner cavity of one end of the end cover body, four fixing holes distributed at equal intervals in a surrounding mode are formed in the inner circumferential face of the end cover body, and four first threaded rods distributed at equal intervals in a surrounding mode are rotationally connected to an inner cavity of the sealing cover. The peripheral face of the first threaded rod is in threaded connection with a threaded sleeve, and an inserting rod is fixed to one end of the threaded sleeve. According to the device, the sealing cover can be quickly mounted and dismounted, and meanwhile, the sealing cover has certain stability after being mounted, so that the practicability of the device is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of wheel hubs, and in particular relates to a wheel hub with an end cover having a sealing plug. Background Art

[0002] The wheel hub is a cylindrical metal component with the inner contour of the tire supporting the tire and the center mounted on the axle. It is also called a rim, steel ring, wheel, or tire bell. There are many types of wheel hubs depending on the diameter, width, molding method, and material. An end cover structure is provided at the external end, and a corresponding sealing plug is installed on the surface of the end cover to cover the bolts of the wheel hub for aesthetic protection.

[0003] The connection between the hub end cover and the sealing plug in the prior art is mostly a snap connection. However, although this connection method is easy to install in actual use, it is difficult to pry open the sealing plug during disassembly due to the lack of a gap at the snap-fit ​​position, which makes it inconvenient to disassemble the sealing plug. At the same time, this connection method has poor stability and is not conducive to use.

[0004] Therefore, there is a need for a wheel hub with an end cover having a sealing plug, which can solve the problem that the connection between the wheel hub end cover and the sealing plug in the prior art is mostly a snap connection, which is inconvenient for disassembly of the sealing plug and has poor stability. Utility Model Content

[0005] The utility model aims to provide a wheel hub with an end cover having a sealing plug, so as to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a wheel hub with an end cover and a sealing plug, comprising a wheel hub body, an end cover body is fixed on the surface of one end of the wheel hub body, a sealing cover is inserted into the inner cavity of one end of the end cover body, the inner circumferential surface of the end cover body is provided with four fixing holes which are equidistantly distributed around, the inner cavity of the sealing cover is rotatably connected with four first threaded rods which are equidistantly distributed around, the outer circumferential surface of the first threaded rod is threadedly connected with a threaded sleeve, one end of the threaded sleeve is fixed with an insertion rod, one end of the insertion rod passes through the sealing cover and extends to the inside of the fixing hole at an adjacent position, symmetrically distributed interference grooves are provided on the surfaces of both sides of the threaded sleeve, an interference strip is inserted through the middle position of the interference groove, the surface of one side of the interference strip is fixed to the inner cavity surface of the sealing cover, a decorative plate is fitted on the surface of one end of the sealing cover, and the inner cavity of the end cover body is located at one end of the sealing cover to fix a limiting ring.

[0007] It should be noted in the scheme that the inner cavity of the sealing cover is located at the middle position of the four first threaded rods and is rotatably connected to a rotating shaft. The outer circumferential surface of the rotating shaft is fixed with a first bevel gear, and the outer circumferential surface of the first threaded rod close to the first bevel gear is fixed with a second bevel gear. The first bevel gear and the four second bevel gears are meshingly connected.

[0008] It is further worth mentioning that one side of the rotating shaft passes through the sealing cover and extends out of the sealing cover, and a threading opening is provided on the surface of the rotating shaft extending out of the sealing cover.

[0009] It should be further explained that a decorative plate is fitted on the surface of one side of the sealing cover, and placement openings are opened on the surfaces of both sides of the decorative plate. Positioning blocks are inserted into the placement openings, and one side of the positioning blocks is fixed to the surface of the sealing cover.

[0010] As a preferred embodiment, the placement openings are connected at one end close to each other with two slots, an inner slot in a U-shape is provided inside the positioning block, a movable block in a U-shape is inserted inside the inner slot, one end of the movable block passes through the adjacent position positioning block and extends to the inside of the adjacent position slot, a second threaded rod is threadedly connected to the surface of the other side of the positioning block, one end of the second threaded rod extends to the inside of the adjacent position inner slot and is rotatably connected to the surface of the adjacent position movable block.

[0011] As a preferred embodiment, the width of the surface of the end of the interference strip close to the rotating shaft is greater than the width of the surface of the end away from the rotating shaft, and the width of the surface of the end of the interference strip close to the rotating shaft is greater than the width of the interference groove.

[0012] Compared with the prior art, the wheel hub with an end cover having a sealing plug provided by the utility model has at least the following beneficial effects:

[0013] (1) After the sealing cover is inserted into the inner cavity of the end cover body and fits with the limit ring, the four first threaded rods are rotated so that the threaded sleeve can move toward the direction close to the adjacent fixing hole, so that the insertion rod can pass through the sealing cover and extend to the inside of the adjacent fixing hole, thereby limiting the sealing cover. As a result, the installation and removal of the sealing cover can be quickly achieved. At the same time, the sealing cover has a certain stability after installation, thereby improving the practicality of the device.

[0014] (2) By inserting the decorative plate into the middle position of the two positioning blocks and rotating the two second threaded rods in sequence so that the upper and lower ends of the surface of one end of the second threaded rod can extend into the interior of the slot, the second bevel gear can be replaced, thereby eliminating the need to use traditional bonding to connect the second bevel gear to one end of the sealing cover to achieve a decorative effect. At the same time, the second bevel gear can be recycled, thereby further improving the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the utility model in the front view direction;

[0016] Figure 2 It is an exploded schematic diagram of the three-dimensional structure of the utility model;

[0017] Figure 3 For the utility model Figure 2 A schematic diagram of the structure enlargement at the center A;

[0018] Figure 4 For the utility model Figure 2 A schematic diagram of the structure enlarged at B in the middle;

[0019] Figure 5 It is a schematic cross-sectional view of the three-dimensional structure of the sealing cover in the utility model;

[0020] Figure 6 It is a schematic cross-sectional view of the three-dimensional structure of the positioning block in the utility model.

[0021] In the figure: 1. hub body; 2. end cover body; 3. sealing cover; 4. decorative plate; 5. limiting ring; 6. fixing hole; 7. first threaded rod; 8. threaded sleeve; 9. inserting rod; 10. interference groove; 11. interference strip; 12. rotating shaft; 13. first bevel gear; 14. second bevel gear; 15. screw opening; 16. positioning block; 17. placement opening; 18. slot; 19. inner groove; 20. movable block; 21. second threaded rod. DETAILED DESCRIPTION

[0022] See also Figure 1-6The utility model provides a wheel hub with an end cover having a sealing plug, comprising a wheel hub body 1, an end cover body 2 is fixed to the surface of one end of the wheel hub body 1, a sealing cover 3 is inserted into the inner cavity of one end of the end cover body 2, four fixing holes 6 are arranged equidistantly and circumferentially on the inner circumference of the end cover body 2, four first threaded rods 7 are rotatably connected to the inner cavity of the sealing cover 3, a threaded sleeve 8 is threadedly connected to the outer circumference of the first threaded rod 7, an insertion rod 9 is fixed to one end of the threaded sleeve 8, one end of the insertion rod 9 passes through the sealing cover 3 and extends to the inside of the fixing hole 6 at an adjacent position, and symmetrically distributed interference grooves 10 are arranged on the surfaces of both sides of the threaded sleeve 8, and an interference groove 10 is inserted through the middle position of the interference groove 10. A contact strip 11, a surface on one side of the contact strip 11 is fixed to the inner cavity surface of the sealing cover 3, a decorative plate 4 is fitted on the surface of one end of the sealing cover 3, and a limiting ring 5 is fixed at one end of the inner cavity of the end cover body 2. After the sealing cover 3 is inserted into the inner cavity of the end cover body 2 and fits with the limiting ring 5, the four first threaded rods 7 are rotated so that the threaded sleeve 8 can move toward the direction close to the adjacent fixed hole 6, so that the insertion rod 9 can pass through the sealing cover 3 and extend to the inside of the adjacent fixed hole 6, thereby limiting the sealing cover 3, thereby the installation and disassembly operations of the sealing cover 3 can be quickly realized, and the sealing cover 3 has a certain stability after installation.

[0023] Further as Figure 5 As shown, it is worth explaining in detail that the inner cavity of the sealing cover 3 is located at the middle position of the four first threaded rods 7 and is rotatably connected with a rotating shaft 12. The outer circumferential surface of the rotating shaft 12 is fixedly sleeved with a first bevel gear 13, and the outer circumferential surface of the first threaded rod 7 close to the first bevel gear 13 is fixedly sleeved with a second bevel gear 14. The first bevel gear 13 and the four second bevel gears 14 are meshingly connected. When the rotating shaft 12 is able to rotate, it drives the first bevel gear 13 to rotate, so that the four first threaded rods 7 can rotate synchronously under the meshing action between the first bevel gear 13 and the second bevel gear 14.

[0024] Further as Figure 5 As shown, it is worth specifically explaining that one side of the rotating shaft 12 passes through the sealing cover 3 and extends out of the sealing cover 3, and a screw hole 15 is provided on the surface of the rotating shaft 12 extending out of the outer part of the sealing cover 3. The rotating shaft 12 can be screwed by extending one end of the hexagonal wrench to the inside of the screw hole 15, thereby making it easy to put the rotating shaft 12 in a rotating state.

[0025] Further as Figure 4 , Figure 5 and Figure 6As shown, it is worth specifically explaining that a decorative plate 4 is fitted on the surface of one side of the sealing cover 3, and a placement opening 17 is provided on the surfaces of both sides of the decorative plate 4, and a positioning block 16 is inserted inside the placement opening 17, one side of the positioning block 16 is fixed to the surface of the sealing cover 3, and one end of the placement opening 17 close to each other is connected with two slots 18, and an inner groove 19 arranged in a U shape is provided inside the positioning block 16, and a movable block 20 arranged in a U shape is inserted inside the inner groove 19, one end of the movable block 20 passes through the positioning block 16 at the adjacent position and extends to the inside of the slot 18 at the adjacent position, and a second threaded rod 21 is threadedly connected to the surface of the other side of the positioning block 16, and one end of the second threaded rod 21 extends to the inside of the inner groove 19 at the adjacent position and is connected to the surface of the movable block 20 at the adjacent position. It is arranged in a rotating connection. When the decorative plate 4 needs to be arranged at one end of the sealing cover 3 for decoration, the decorative plate 4 is inserted into the middle position of the two positioning blocks 16 so that the positioning block 16 fits with the inner surface of the placement opening 17, and then the second threaded rod 21 is rotated in sequence to extend under the cooperation of the threaded structure between it and the positioning block 16. Due to the connection relationship of the second threaded rod 21 and the interference and limitation of the movable block 20 by the inner groove 19, the movable block 20 can move in the horizontal direction when the second threaded rod 21 is extended, so that the upper and lower ends of the one end surface extend out of the outside of the positioning block 16 and can extend to the inside of the slot 18, thereby limiting the decorative plate 4 and allowing the decorative plate 4 to be recycled.

[0026] This scheme has the following working process: in actual use, when the user needs to install the sealing cover 3 to the inner cavity position of the end cover body 2, the sealing cover 3 is inserted into the inner cavity position of the sealing cover 3 to make it fit with the surface of the limit ring 5, and then the rotating shaft 12 can be screwed by extending one end of the hexagonal wrench to the inside of the screw hole 15, so as to make the rotating shaft 12 in a rotating state. When the rotating shaft 12 can rotate, it drives the first bevel gear 13 to rotate, so that the four first threaded rods 7 can rotate synchronously under the meshing action between the first bevel gear 13 and the second bevel gear 14, and the interference action between the interference strip 11 and the interference groove 10 can limit the threaded sleeve 8 so that it can only move in the horizontal direction, so that the threaded sleeve 8 can drive the inserted rod 9 to extend out of the sealing cover under the cooperation between the internal thread structure of the inner wall of the threaded sleeve 8 and the external thread structure of the outer peripheral surface of the first threaded rod 7 at the adjacent position. 3 and extends to the inside of the fixing hole 68 at the adjacent position, so as to fix the sealing cover 3. In this way, the installation and disassembly operations of the sealing cover 3 can be quickly realized, and the sealing cover 3 has a certain stability after installation. When it is necessary to set the decorative plate 4 at one end of the sealing cover 3 for decoration, the decorative plate 4 is inserted in the middle position of the two positioning blocks 16 so that the positioning block 16 is fitted with the inner surface of the placement opening 17, and then the second threaded rod 21 is rotated in sequence to extend under the cooperation of the threaded structure between the second threaded rod 21 and the movable block 20. Due to the connection relationship of the second threaded rod 21 and the interference and limitation of the inner groove 19 on the movable block 20, the movable block 20 can move in the horizontal direction when the second threaded rod 21 is extended, so that the upper and lower ends of the one end surface extend out of the outside of the positioning block 16 and can extend to the inside of the slot 18, so as to limit the decorative plate 4, so that the decorative plate 4 can be recycled.

[0027] According to the above working process, it can be known that: after the sealing cover 3 is inserted into the inner cavity of the end cover body 2 and fits with the limit ring 5, the four first threaded rods 7 are rotated, so that the threaded sleeve 8 can move in the direction close to the adjacent position fixing hole 6, so that the insertion rod 9 can pass through the sealing cover 3 and extend to the inside of the adjacent position fixing hole 6, so as to limit the sealing cover 3, thereby the installation and disassembly operations of the sealing cover 3 can be quickly realized, and the sealing cover 3 has a certain stability after installation, thereby improving the practicality of the device, and the decorative plate 4 is inserted into the middle position of the two positioning blocks 16, and the two second threaded rods 21 are rotated in turn so that the upper and lower ends of the surface of one end of the second threaded rod 21 can extend to the inside of the slot 18, so that the second bevel gear 14 can be replaced, so that there is no need to use traditional bonding to connect the second bevel gear 14 to one end of the sealing cover 3 to achieve a decorative effect, and the second bevel gear 14 can also be recycled, thereby further improving the practicality of the device.

[0028] Further as Figure 4 As shown, it is worth specifically stating that the width of the surface of the end of the interference strip 11 close to the rotating shaft 12 is greater than the surface of the end away from the rotating shaft 12, and the width of the surface of the end of the interference strip 11 close to the rotating shaft 12 is greater than the width of the interference groove 10. Due to the shape of the interference strip 11, when the threaded sleeve 8 moves horizontally to a position close to the second bevel gear 14 at an adjacent position, it will conflict with the surface of the interference strip 11 close to the rotating shaft 12, thereby preventing the threaded sleeve 8 from conflicting with the second bevel gear 14 at an adjacent position and causing damage to the second bevel gear 14.

[0029] In summary: after the sealing cover 3 is inserted into the inner cavity of the end cover body 2 and fits with the limit ring 5, the four first threaded rods 7 are rotated so that the threaded sleeve 8 can move toward the direction close to the adjacent fixed hole 6, so that the insertion rod 9 can pass through the sealing cover 3 and extend to the inside of the adjacent fixed hole 6, so as to limit the sealing cover 3, thereby the installation and disassembly of the sealing cover 3 can be quickly realized, and the sealing cover 3 has a certain stability after installation, thereby improving the practicality of the device, and the decorative plate 4 is inserted into the middle position of the two positioning blocks 16, and the two second threaded rods 21 are rotated in sequence so that the second threaded rods 21 The upper and lower ends of one end surface can extend to the interior of the slot 18, so that the second bevel gear 14 can be replaced, thereby eliminating the need to use traditional bonding to connect the second bevel gear 14 to one end of the sealing cover 3 to achieve a decorative effect, and also allowing the second bevel gear 14 to be recycled, thereby further improving the practicality of the device. Due to the shape of the interference strip 11, when the threaded sleeve 8 moves horizontally to a position close to the second bevel gear 14 at the adjacent position, it will interfere with the surface of the interference strip 11 close to the end of the rotating shaft 12, thereby preventing the threaded sleeve 8 from interfering with the second bevel gear 14 at the adjacent position and causing damage to the second bevel gear 14.

Claims

1. A wheel hub with an end cover having a sealing plug, comprising a wheel hub body (1), characterized in that: An end cover body (2) is fixed to the surface of one end of the hub body (1); a sealing cover (3) is inserted into the inner cavity of one end of the end cover body (2); the inner circumferential surface of the end cover body (2) is provided with four fixing holes (6) which are equidistantly distributed around the inner surface; four first threaded rods (7) which are equidistantly distributed around the inner cavity of the sealing cover (3) are rotatably connected; a threaded sleeve (8) is threadedly connected to the outer circumferential surface of the first threaded rod (7); an insertion rod (9) is fixed to one end of the threaded sleeve (8); the insertion rod (9) One end of the threaded sleeve (8) passes through the sealing cover (3) and extends to the inside of the adjacent fixing hole (6); the surfaces of both sides of the threaded sleeve (8) are provided with symmetrically distributed interference grooves (10); an interference strip (11) is inserted through the middle of the interference groove (10); the surface of one side of the interference strip (11) is fixed to the inner cavity surface of the sealing cover (3); a decorative plate (4) is fitted on the surface of one end of the sealing cover (3); and a limiting ring (5) is fixed to the inner cavity of the end cover body (2) at one end of the sealing cover (3).

2. A wheel hub with an end cover and a sealing plug according to claim 1, characterized in that: The inner cavity of the sealing cover (3) is rotatably connected to a rotating shaft (12) located at the middle position of the four first threaded rods (7); a first bevel gear (13) is fixedly sleeved on the outer circumference of the rotating shaft (12); a second bevel gear (14) is fixedly sleeved on the outer circumference of the outer circumference of the first threaded rod (7) near the first bevel gear (13); the first bevel gear (13) and the four second bevel gears (14) are meshingly connected.

3. A wheel hub with an end cover and a sealing plug according to claim 2, characterized in that: One side of the rotating shaft (12) passes through the sealing cover (3) and extends out of the outside of the sealing cover (3); a threading opening (15) is provided on the surface of the portion of the rotating shaft (12) extending out of the outside of the sealing cover (3).

4. A wheel hub with an end cover and a sealing plug according to claim 1, characterized in that: A decorative plate (4) is fitted on the surface of one side of the sealing cover (3), and placement openings (17) are provided on the surfaces of both sides of the decorative plate (4). Positioning blocks (16) are inserted into the interior of the placement openings (17), and one side of the positioning blocks (16) is fixed to the surface of the sealing cover (3).

5. A wheel hub with an end cover and a sealing plug according to claim 4, characterized in that: The ends of the placement openings (17) close to each other are connected to two slots (18); a U-shaped inner slot (19) is provided inside the positioning block (16); a U-shaped movable block (20) is inserted inside the inner slot (19); one end of the movable block (20) passes through the adjacent positioning block (16) and extends to the inside of the adjacent slot (18); a second threaded rod (21) is threadedly connected to the surface of the other side of the positioning block (16); one end of the second threaded rod (21) extends to the inside of the adjacent inner slot (19) and is rotatably connected to the surface of the adjacent movable block (20).

6. A wheel hub with an end cap and a sealing plug according to claim 1, characterized in that: The width of the surface of the end of the interference strip (11) close to the rotating shaft (12) is greater than the width of the surface of the end away from the rotating shaft (12), and the width of the surface of the end of the interference strip (11) close to the rotating shaft (12) is greater than the width of the interference groove (10).

Images