Oil seal convenient to install

Abstract

The utility model relates to the technical field of oil seals, in particular to an oil seal convenient to install, which comprises an oil seal body, the oil seal body is divided into an upper part and a lower part, external threads are arranged on the outer surfaces of the two ends of the oil seal body, and a first installation seat and a second installation seat are respectively arranged on the outer sides of the two ends of the oil seal body. Internal threads are arranged in the first mounting base and the second mounting base, a plurality of first positioning holes are formed in the opposite faces of the first mounting base and the second mounting base, and a plurality of second positioning holes are formed in the two sides of the middle position of the oil seal body. Positioning rods are arranged in the first positioning hole and the second positioning hole; through the cooperation of the structure, the purpose of high oil seal installation accuracy and stability is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of oil seals, and in particular relates to an oil seal which is easy to install. Background Art

[0002] Oil seal is the customary name for general seals, which simply means the seal of lubricating oil. It is a mechanical component used to seal grease, which isolates the parts that need lubrication from the output parts in the transmission components to prevent the lubricating oil from leaking.

[0003] However, the existing oil seal structure is prone to detachment or misalignment during installation, which is very inconvenient and time-consuming, reduces work efficiency, and has poor installation stability. An oil seal that is easy to install is now provided to alleviate the above-mentioned problems. Summary of the invention

[0004] The utility model achieves the purpose of high accuracy and stability of oil seal installation by matching internal and external threads and matching positioning rods with first and second positioning holes respectively, so that the oil seal body is installed on the first and second mounting seats.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] An oil seal that is easy to install includes an oil seal body, the oil seal body is divided into an upper and lower part, and the outer surfaces of both ends of the oil seal body are provided with external threads, the outer sides of both ends of the oil seal body are respectively provided with a first mounting seat and a second mounting seat, the insides of the first mounting seat and the second mounting seat are provided with internal threads, a plurality of first positioning holes are opened on the opposite surfaces of the first mounting seat and the second mounting seat, a plurality of second positioning holes are opened on both sides of the middle position of the oil seal body, and positioning rods are provided inside the first positioning holes and the second positioning holes.

[0007] Preferably, a mounting groove is provided in the middle position inside the oil seal body, a plurality of slots are provided inside the mounting groove, a rubber sealing ring is provided inside the mounting groove, and a plurality of positioning blocks are fixedly provided on the outer surface of the rubber sealing ring.

[0008] Preferably, the middle diameter of the oil seal body is larger than the diameters at both ends, the diameters of the first mounting seat and the second mounting seat on the side close to the oil seal body are larger than the diameters on the side away from the oil seal body, and the opposing surfaces of the first mounting seat and the second mounting seat respectively cooperate with the two side surfaces of the majority of the diameter of the oil seal body.

[0009] Preferably, the structure of the rubber sealing ring is a circular ring with different diameters at both ends, and the positioning block is a cylinder with an irregular bottom surface.

[0010] Preferably, the mounting groove is structured as an annular groove with different diameters.

[0011] Compared with the prior art, the gain effect of the utility model is:

[0012] 1. By setting the first mounting seat, the second mounting seat, the oil seal body, the positioning rod, the first positioning hole and the second positioning hole, the external threads on the opposite ends of the first mounting seat and the second mounting seat cooperate with the internal threads at both ends of the oil seal body to achieve the initial fixation of the first mounting seat and the second mounting seat to the oil seal body, and then the positioning rod is installed in the first positioning hole and the second positioning hole to achieve the secondary fixation of the first mounting seat and the second mounting seat to the oil seal body, so as to prevent loosening and increase the stability and accuracy of the installation.

[0013] 2. By arranging the rubber sealing ring, the positioning block, the installation groove and the clamping groove, the positioning block is clamped into the clamping groove, and the rubber sealing ring is driven to be installed into the oil seal body through the installation groove, so that the rubber sealing ring can be quickly installed and the work efficiency can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a stereogram of an embodiment of the utility model;

[0015] Figure 2 This is a schematic diagram of a half-section structure of an embodiment of the utility model;

[0016] Figure 3 It is an exploded view of an embodiment of the utility model.

[0017] In the figure: a first mounting seat 1; a second mounting seat 2; an oil seal body 3; a positioning rod 4; a first positioning hole 5; a second positioning hole 6; a rubber sealing ring 7; a positioning block 8; a mounting groove 9; a clamping groove 10; an internal thread 11; and an external thread 12. DETAILED DESCRIPTION

[0018] The technical solution of the utility model is further described below in conjunction with the accompanying drawings and specific embodiments.

[0019] Example

[0020] The features and exemplary embodiments of various aspects of the present invention will be described in detail below. In order to make the purpose, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only configured to explain the present invention and are not configured to limit the present invention. For those skilled in the art, the present invention can be implemented without the need for some of these specific details. The following description of the embodiments is only intended to provide a better understanding of the present invention by illustrating examples of the present invention.

[0021] The directional words appearing in the following description are all directions shown in the figures, and do not limit the specific structure of the utility model. In the description of the utility model, it should also be noted that, unless otherwise clearly specified and limited, the terms "installation" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to the specific circumstances; the contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0022] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments to facilitate a clearer understanding of the present invention.

[0023] See also Figure 1-3 An oil seal that is easy to install includes an oil seal body 3, which is divided into an upper and lower part, and the outer surfaces of both ends of the oil seal body 3 are provided with external threads 12, the outer sides of both ends of the oil seal body 3 are respectively provided with a first mounting seat 1 and a second mounting seat 2, the insides of the first mounting seat 1 and the second mounting seat 2 are provided with internal threads 11, the inner sides of the first mounting seat 1 and the second mounting seat 2 are respectively threadedly connected with the two ends of the oil seal body 3, a plurality of first positioning holes 5 are opened on the opposite surfaces of the first mounting seat 1 and the second mounting seat 2, a plurality of second positioning holes 6 are opened on both sides of the middle position of the oil seal body 3, and positioning rods 4 are arranged inside the first positioning hole 5 and the second positioning hole 6.

[0024] Furthermore, the middle diameter of the oil seal body 3 is larger than the diameters at both ends, the diameters of the first mounting seat 1 and the second mounting seat 2 on the side close to the oil seal body 3 are larger than the diameters on the side away from the oil seal body 3, and the opposing surfaces of the first mounting seat 1 and the second mounting seat 2 respectively cooperate with the two side surfaces of the largest part of the diameter of the oil seal body 3 to achieve rapid positioning and installation.

[0025] In this embodiment, through the threaded connection of the internal thread 11 and the external thread 12, the opposing surfaces of the first mounting seat 1 and the second mounting seat 2 are matched with the two end surfaces in the middle position of the oil seal body 3, and the first mounting seat 1 and the second mounting seat 2 are initially fixed to the oil seal body 3, and then the positioning rod 4 is threadedly connected to the first positioning hole 5 and the second positioning hole 6 to achieve secondary fixation of the first mounting seat 1 and the second mounting seat 2 to the oil seal body 3.

[0026] See also Figure 1-3A mounting groove 9 is provided in the middle position inside the oil seal body 3, a plurality of card slots 10 are provided inside the mounting groove 9, a rubber sealing ring 7 is provided inside the mounting groove 9, a plurality of positioning blocks 8 are fixedly provided on the outer surface of the rubber sealing ring 7, and the surface of the positioning block 8 is card-engaged with the inside of the card slot 10.

[0027] Furthermore, the structure of the rubber sealing ring 7 is a ring with different diameters at both ends, and the positioning block 8 is a cylinder with an irregular bottom surface, so that the bottom surface of the positioning block 8 better fits the outer surface of the rubber sealing ring 7.

[0028] Furthermore, the structure of the installation groove 9 is a circular groove with different diameters, which can increase the contact area between the installation groove 9 and the rubber sealing ring 7 and ensure the stability of the clamping during installation.

[0029] In this embodiment, the positioning block 8 and the rubber sealing ring 7 are first aligned with the card slot 10 and the installation slot 9 respectively, and then the positioning block 8 is snapped into the card slot 10 to drive the rubber sealing ring 7 to be installed into the oil seal body 3 through the installation slot 9.

[0030] Working principle: When the utility model is used, first, the rubber sealing ring 7 is installed in the installation groove 9 by clamping the positioning block 8 with the clamping groove 10; then, the first mounting seat 1 and the second mounting seat 2 are respectively aligned with the two ends of the oil seal body 3, and then the first mounting seat 1 and the second mounting seat 2 are initially fixed and installed with the oil seal body 3 through the threaded connection of the internal thread 11 and the external thread 12, and then the positioning rod 4 is inserted into the first positioning hole 5 and the second positioning hole 6, and the positioning rod 4 is threadedly connected with the first positioning hole 5 and the second positioning hole 6 respectively, so as to realize the secondary fixation of the first mounting seat 1 and the second mounting seat 2 with the oil seal body 3 to avoid loosening and increase stability.

Claims

1. An oil seal that is easy to install, comprising an oil seal body (3), characterized in that: The oil seal body (3) is divided into an upper and lower part, and external threads (12) are provided on the outer surfaces of both ends of the oil seal body (3), and a first mounting seat (1) and a second mounting seat (2) are provided on the outer sides of both ends of the oil seal body (3), respectively, and internal threads (11) are provided inside the first mounting seat (1) and the second mounting seat (2), and a plurality of first positioning holes (5) are provided on the opposite surfaces of the first mounting seat (1) and the second mounting seat (2), and a plurality of second positioning holes (6) are provided on both sides of the middle position of the oil seal body (3), and positioning rods (4) are provided inside the first positioning holes (5) and the second positioning holes (6).

2. An oil seal that is easy to install according to claim 1, characterized in that: A mounting groove (9) is provided in the middle of the oil seal body (3), a plurality of clamping grooves (10) are provided inside the mounting groove (9), a rubber sealing ring (7) is provided inside the mounting groove (9), and a plurality of positioning blocks (8) are fixedly provided on the outer surface of the rubber sealing ring (7).

3. An oil seal that is easy to install according to claim 1, characterized in that: The middle diameter of the oil seal body (3) is larger than the diameters at both ends; the diameters of the first mounting seat (1) and the second mounting seat (2) on the side close to the oil seal body (3) are larger than the diameters on the side away from the oil seal body (3); and the opposing surfaces of the first mounting seat (1) and the second mounting seat (2) respectively match the two side surfaces of the oil seal body (3) having a large diameter.

4. An oil seal that is easy to install according to claim 2, characterized in that: The structure of the rubber sealing ring (7) is a circular ring with different diameters at both ends, and the positioning block (8) is a column with an irregular bottom surface.

5. An oil seal that is easy to install according to claim 2, characterized in that: The structure of the installation groove (9) is a circular groove with different diameters.

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