A sealing device for an automotive oil seal

Abstract

The present invention discloses a sealing device for an automotive oil seal, which includes an oil seal sleeved and installed on the surface of a shaft body and a sealing and installation mechanism arranged on the outer surface of the oil seal. The shaft body is installed on the front surface of a shaft seat, the rear end of the oil seal is attached to the shaft seat. The sealing and installation mechanism includes two oil seal mounting seats and a splicing component, and the two oil seal mounting seats are connected by the splicing component. An installation side block is fixed on the outer side surface of the oil seal mounting seat, and a pressing component is arranged between the installation side block and the shaft seat. The quick assembly between the two oil seal mounting seats can be realized through the arranged splicing component, and the quick connection between the installation side block and the shaft seat can be realized through the arranged pressing component, so that the installation convenience and assembly convenience of the entire sealing and installation mechanism are improved, which brings convenience to the operator for the installation and sealing of the oil seal and also facilitates the subsequent disassembly and replacement of the oil seal.

Description

Technical Field

[0001] The present invention belongs to the technical field of oil seal sealing, and particularly relates to a sealing device for an automotive oil seal. Background Art

[0002] Oil seals need to be installed on some drive shafts of automobiles for sealing, and the sealing device for the oil seal plays a role in installing and sealing the oil seal. For example, in the existing patent with the publication number CN214499814U, "An oil seal sealing device includes an oil seal, and also includes an oil seal mounting seat sleeved on an eccentric shaft..."

[0003] When the oil seal sealing device in this patent is in use, due to the inconvenience of connecting between the two oil seal mounting seats and the inconvenience of connecting between the oil seal mounting seat and the shaft seat, the overall assembly efficiency of the oil seal sealing device is low, and it also brings inconvenience to the subsequent disassembly, installation and replacement of the oil seal, reducing the use flexibility. Therefore, the present invention provides a sealing device for an automotive oil seal. Summary of the Invention

[0004] The purpose of the present invention is to provide a sealing device for an automotive oil seal to solve the problem of the overall assembly efficiency of the existing oil seal sealing device proposed in the above background art.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A sealing device for an automotive oil seal includes an oil seal sleeved and installed on the surface of a shaft body and a sealing installation mechanism arranged on the outer surface of the oil seal. The shaft body is installed on the front surface of a shaft seat, the rear end of the oil seal is attached to the shaft seat, the sealing installation mechanism includes two oil seal mounting seats and a splicing component, and the two oil seal mounting seats are connected by the splicing component. An installation side block is fixed on the outer side surface of the oil seal mounting seat, and a pressing component is arranged between the installation side block and the shaft seat. A limiting component is also arranged between the oil seal mounting seat and the oil seal.

[0006] Preferably, the pressing component includes a base cylinder rotatably installed on the front surface of the shaft seat, and a movable pressing block is movably arranged on the surface of the base cylinder. An activity structure is arranged between the movable pressing block and the base cylinder. A circular hole corresponding to the base cylinder is penetrated on the surface of the installation side block, and a side port communicated with the circular hole is opened on the side surface of the installation side block, and the side port corresponds to the movable pressing block.

[0007] Preferably, positioning rods are fixed on both sides of the front surface of the installation side block relative to the circular hole. Positioning ports corresponding to the positioning rods are opened on the surface of the movable pressing block, and one of the positioning rods is embedded into the positioning port.

[0008] Preferably, the movable structure includes a movable block, a connecting block and a tension spring. The movable block is movably installed inside the base cylinder through the tension spring. A top slideway corresponding to the connecting block is formed on the top surface of the base cylinder. The connecting block is slidably located in the top slideway, and the bottom end of the connecting block is fixed to the movable block. The top end of the connecting block extends to the surface of the base cylinder and is fixed to the movable pressing block.

[0009] Preferably, one end of the tension spring is fixed to the inner wall of the base cylinder, and the other end of the tension spring is fixed to the movable block.

[0010] Preferably, a rotating seat is fixed to the front surface of the shaft seat, and the rear end of the base cylinder is rotatably sleeved on the surface of the rotating seat.

[0011] Preferably, the splicing assembly includes an arc-shaped plate and two insertion blocks fixed to the surface of the arc-shaped plate. Slots corresponding to the insertion blocks are formed on the surface of the oil seal mounting seat, and the insertion blocks are inserted into the slots. A clamping structure is further provided between the insertion blocks and the slots.

[0012] Preferably, the clamping structure includes a movable groove, a spring and a movable clamping bead. The movable groove is formed on one side surface of the insertion block, and the movable clamping bead is movably arranged in the movable groove through the spring. A circular clamping hole corresponding to the movable clamping bead is formed on one side inner wall of the slot, and one end of the movable clamping bead is embedded into the circular clamping hole.

[0013] Preferably, the limiting assembly includes an arc-shaped limiting strip fixed to the inner wall of the oil seal mounting seat. An annular limiting groove corresponding to the arc-shaped limiting strip is formed on the surface of the oil seal, and the arc-shaped limiting strip is embedded into the annular limiting groove.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: The quick assembly between two oil seal mounting seats can be realized through the provided splicing assembly, and the quick connection between the mounting side block and the shaft seat can be realized through the provided pressing assembly, so that the installation convenience and assembly convenience of the entire sealing installation mechanism are improved, which brings convenience to the installation and sealing of the oil seal by the operator and also facilitates the subsequent disassembly and replacement of the oil seal. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural diagram of the present invention;

[0016] Figure 2 is the present invention Figure 1 partial enlarged view of the pressing assembly in;

[0017] Figure 3 is a top view cross-sectional view of the connection between the base cylinder and the mounting side block of the present invention;

[0018] Figure 4 is a cross-sectional view of the splicing assembly of the present invention;

[0019] Figure 5 For the present invention Figure 4 is a partial enlarged view of the engaging structure in the present invention;

[0020] In the figure: 1, oil seal; 2, shaft seat; 3, shaft body; 4, sealing and mounting mechanism; 41, oil seal mounting seat; 42, splicing component; 421, arc plate; 422, insertion block; 423, slot; 424, engaging structure; 4241, movable slot; 4242, spring; 4243, movable clamping bead; 4244, circular clamping hole; 43, mounting side block; 44, pressing component; 441, base cylinder; 442, movable pressing block; 443, circular hole; 444, side port; 445, positioning rod; 446, positioning port; 447, movable structure; 4471, movable block; 4472, connecting block; 4473, tension spring; 448, rotating seat; 45, limiting component; 451, arc limiting strip; 452, annular limiting groove. Specific embodiments

[0021] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0022] Embodiment 1

[0023] Please refer to Figure 1 and Figure 3, which is the first embodiment of the present invention. This embodiment provides a technical solution: a sealing device for an automotive oil seal, including an oil seal 1 sleeved and installed on the surface of a shaft body 3 and a sealing and installation mechanism 4 arranged on the outer surface of the oil seal 1. The oil seal 1 is made of fluororubber material. The shaft body 3 is installed on the front surface of a shaft seat 2. The rear end of the oil seal 1 is attached to the shaft seat 2 to improve the installation sealing performance. The sealing and installation mechanism 4 includes two oil seal installation seats 41 and a splicing component 42, and the two oil seal installation seats 41 are connected by the splicing component 42. A mounting side block 43 is welded and fixed on the outer surface of the oil seal installation seat 41, and a pressing component 44 is arranged between the mounting side block 43 and the shaft seat 2. A limiting component 45 is also arranged between the oil seal installation seat 41 and the oil seal 1. The pressing component 44 includes a base cylinder 441 rotatably installed on the front surface of the shaft seat 2, and a movable pressing block 442 is movably arranged on the surface of the base cylinder 441. An activity structure 447 is arranged between the movable pressing block 442 and the base cylinder 441. A circular hole 443 corresponding to the base cylinder 441 is formed through the surface of the mounting side block 43, and a side port 444 communicating with the circular hole 443 is formed on the side surface of the mounting side block 43, and the side port 444 corresponds to the movable pressing block 442 for the movable pressing block 442 to penetrate. Positioning rods 445 are welded on both sides of the front surface of the mounting side block 43 relative to the circular hole 443. A positioning port 446 corresponding to the positioning rods 445 is formed on the surface of the movable pressing block 442. One of the positioning rods 445 is inserted into the positioning port 446 to realize the stable limit of the movable pressing block 442 and ensure its pressing stability. The activity structure 447 includes an activity block 4471, a connecting block 4472, and a tension spring 4473. The activity block 4471 is movably installed inside the base cylinder 441 through the tension spring 4473. A top slideway corresponding to the connecting block 4472 is formed on the top surface of the base cylinder 441 for the connecting block 4472 to slide. The connecting block 4472 slides in the top slideway, and the bottom end of the connecting block 4472 is fixed to the activity block 4471. The top end of the connecting block 4472 extends out of the surface of the base cylinder 441 and is fixed to the movable pressing block 442, so that the movable pressing block 442 can slide together with the activity block 4471.

[0024] In this embodiment, preferably, one end of the tension spring 4473 is fixed to the inner wall of the base cylinder 441, and the other end of the tension spring 4473 is fixed to the activity block 4471 to ensure the installation stability of the tension spring 4473. A rotating seat 448 is fixed on the front surface of the shaft seat 2, and the rear end of the base cylinder 441 is rotatably sleeved on the surface of the rotating seat 448 to realize the rotation of the base cylinder 441.

[0025] In summary, when the oil seal 1 needs to be installed, first put the oil seal 1 on the surface of the shaft body 3, then put two oil seal mounting seats 41 on the oil seal 1 and join them together through the splicing component 42. Then rotate the base cylinder 441 to align the movable pressing block 442 with the side port 444, and push the mounting side block 43 towards the shaft seat 2, so that the oil seal mounting seat 41 presses the rear end of the oil seal 1 tightly, and the front end of the base cylinder 441 penetrates to the front of the mounting side block 43. Then pull the movable pressing block 442 forward, so that the connecting block 4472 drives the movable block 4471 to move forward and stretches the tension spring 4473, so that the movable pressing block 442 can penetrate from the side port 444 to the exact front of the mounting side block 43. Then rotate the movable pressing block 442 again, so that the base cylinder 441 rotates 90 degrees around the rotating seat 448. At this time, release the movable pressing block 442, so that the tension spring 4473 pulls the movable block 4471 back, and the movable pressing block 442 presses the mounting side block 43 tightly, and the positioning rod 445 is embedded in the positioning port 446, which can realize the quick pressing and limiting of the mounting side block 43, thus completing the quick installation of the sealing installation mechanism 4 and ensuring the installation sealing performance of the oil seal 1.

[0026] Embodiment 2

[0027] Please refer to Figures 1 to 5 , which is the second embodiment of the present invention. This embodiment is based on the previous embodiment. The difference is that the quick connection of two oil seal mounting seats 41 can be realized through the splicing component 42.

[0028] Specifically, the splicing component 42 includes an arc-shaped plate 421 and two insertion blocks 422 welded and fixed on the surface of the arc-shaped plate 421. A slot 423 corresponding to the insertion block 422 is opened on the surface of the oil seal mounting seat 41, and the insertion block 422 is inserted into the slot 423. A clamping structure 424 is also arranged between the insertion block 422 and the slot 423 to realize the stable limiting after the insertion block 422 is inserted. The clamping structure 424 includes a movable slot 4241, a spring 4242 and a movable clamping bead 4243. The movable slot 4241 is opened on one side surface of the insertion block 422, and the movable clamping bead 4243 is movably arranged in the movable slot 4241 through the spring 4242. A circular clamping hole 4244 corresponding to the movable clamping bead 4243 is opened on one inner wall of the slot 423, and one end of the movable clamping bead 4243 is embedded in the circular clamping hole 4244 to ensure the stable limiting of the insertion block 422.

[0029] In summary, when two oil seal mounting seats 41 need to be quickly spliced, first, the ends of the two oil seal mounting seats 41 are fitted together, and then the two insertion blocks 422 on the surface of the arc-shaped plate 421 are respectively inserted into the slots 423 on the surfaces of the two oil seal mounting seats 41. When inserting, the ends of the movable clamping beads 4243 will gradually be squeezed into the movable slots 4241, and the spring 4242 will be compressed until the arc-shaped plate 421 is fitted with the oil seal mounting seat 41. At this time, the ends of the movable clamping beads 4243 will be snapped into the circular clamping holes 4244 under the push of the spring 4242, realizing the clamping and limiting of the insertion blocks 422, thus quickly completing the splicing between the two oil seal mounting seats 41.

[0030] Embodiment 3

[0031] Please refer to Figures 1 to 5 , which is the third embodiment of the present invention. This embodiment is based on the previous embodiment. The difference is that the axial mounting stability of the oil seal 1 can be further ensured through the limiting component 45.

[0032] Specifically, the limiting component 45 includes an arc-shaped limiting strip 451 fixed to the inner wall of the oil seal mounting seat 41. A circular limiting groove 452 corresponding to the arc-shaped limiting strip 451 is formed on the surface of the oil seal 1, and the arc-shaped limiting strip 451 is embedded in the circular limiting groove 452, which can realize the axial limiting of the oil seal 1.

[0033] In summary, when the two oil seal mounting seats 41 are sleeved on the oil seal 1 for splicing, the arc-shaped limiting strip 451 will also enter the circular limiting groove 452, so that after the two oil seal mounting seats 41 are spliced later, they can be effectively connected to the oil seal 1, and also play an effective axial limiting role on the oil seal 1, further ensuring the mounting stability and sealing performance of the oil seal 1.

[0034] Although the embodiments of the present invention have been shown and described (see the above detailed description), for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sealing device for an automotive oil seal, comprising an oil seal (1) sleeved on the surface of a shaft body (3) and a sealing and mounting mechanism (4) arranged on the outer surface of the oil seal (1), the shaft body (3) being installed on the front surface of a shaft seat (2), and the rear end of the oil seal (1) being attached to the shaft seat (2), characterized in that: The sealing and mounting mechanism (4) includes two oil seal mounting seats (41) and a splicing component (42), and the two oil seal mounting seats (41) are connected by the splicing component (42). An installation side block (43) is fixed on the outer surface of the oil seal mounting seat (41), and a pressing component (44) is arranged between the installation side block (43) and the shaft seat (2). A limiting component (45) is also arranged between the oil seal mounting seat (41) and the oil seal (1); The pressing component (44) includes a base cylinder (441) rotatably mounted on the front surface of the shaft seat (2), and a movable pressing block (442) is movably arranged on the surface of the base cylinder (441). An active structure (447) is arranged between the movable pressing block (442) and the base cylinder (441). A circular hole (443) corresponding to the base cylinder (441) is formed through the surface of the installation side block (43), and a side port (444) communicating with the circular hole (443) is formed on the side surface of the installation side block (43), and the side port (444) corresponds to the movable pressing block (442); The active structure (447) includes an active block (4471), a connecting block (4472) and a tension spring (4473). The active block (4471) is movably mounted inside the base cylinder (441) through the tension spring (4473). A top slideway corresponding to the connecting block (4472) is formed on the top surface of the base cylinder (441). The connecting block (4472) slides in the top slideway, and the bottom end of the connecting block (4472) is fixed to the active block (4471). The top end of the connecting block (4472) extends to the surface of the base cylinder (441) and is fixed to the movable pressing block (442); The splicing component (42) includes an arc plate (421) and two insertion blocks (422) fixed on the surface of the arc plate (421). A slot (423) corresponding to the insertion block (422) is formed on the surface of the oil seal mounting seat (41), and the insertion block (422) is inserted into the slot (423). A clamping structure (424) is also arranged between the insertion block (422) and the slot (423); The clamping structure (424) includes an active slot (4241), a spring (4242) and an active clamping bead (4243). The active slot (4241) is formed on one side surface of the insertion block (422), and the active clamping bead (4243) is movably arranged in the active slot (4241) through the spring (4242). A circular clamping hole (4244) corresponding to the active clamping bead (4243) is formed on one inner wall of the slot (423), and one end of the active clamping bead (4243) is embedded into the circular clamping hole (4244); The limiting component (45) includes an arc-shaped limiting strip (451) fixed on the inner wall of the oil seal mounting seat (41). An annular limiting groove (452) corresponding to the arc-shaped limiting strip (451) is formed on the surface of the oil seal (1), and the arc-shaped limiting strip (451) is embedded into the annular limiting groove (452).

2. The sealing device for an automotive oil seal according to claim 1, characterized in that: Positioning rods (445) are fixed to both sides of the circular hole (443) relative to the front surface of the mounting side block (43). Positioning ports (446) corresponding to the positioning rods (445) are formed on the surface of the movable pressing block (442), and one of the positioning rods (445) is embedded in the positioning port (446).

3. The sealing device for an automotive oil seal according to claim 2, characterized in that: One end of the tension spring (4473) is fixed to the inner wall of the base cylinder (441), and the other end of the tension spring (4473) is fixed to the movable block (4471).

4. The sealing device for an automotive oil seal according to claim 3, wherein: A rotating seat (448) is fixed to the front surface of the shaft seat (2), and the rear end of the base cylinder (441) is rotatably sleeved on the surface of the rotating seat (448).

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