Oil seal with pre-fixing mechanism

Abstract

The utility model provides an oil seal with a pre-fixing mechanism, which comprises an oil seal main body, the top of the oil seal main body is provided with a mounting groove, the inside of the oil seal main body is provided with a retainer in a clamping way through the mounting groove, and the outside of the retainer is annularly provided with sliding chutes at equal intervals. According to the oil seal with the pre-fixing mechanism, the oil seal body and the holder are preliminarily clamped, installed and fixed through the installation groove, it is guaranteed that the first installation hole and the second installation hole are aligned, the end, installed with the oil seal, of the installation piece is inserted into the installation groove, and at the moment, the holder is located in the installation piece; the inner wall of the oil seal body is attached to the outer surface of the installation piece, due to the fact that a chamfer is arranged at the top of the positioning block, in the downward pressing process of the installation piece, after the positioning block slides towards the interior of the sliding groove, the spring is compressed and the installation piece completely enters the installation groove, due to the reset effect of the spring, the positioning block moves outwards and is matched with the positioning groove, and the installation piece is fixed. The positioning blocks are inserted into the mounting pieces through the positioning grooves.

Description

Technical Field

[0001] The utility model relates to the field of oil seals, in particular to an oil seal with a pre-fixing mechanism. Background Art

[0002] Oil seal is the customary name for general seals. Simply put, it is a seal for lubricating oil. It is a mechanical component used to seal grease (oil is the most common liquid substance in the transmission system, and also refers to general liquid substances). It isolates the parts that need lubrication from the output parts in the transmission components to prevent the lubricating oil from leaking. The seals used for static sealing and dynamic sealing (generally reciprocating motion) are called oil seals.

[0003] However, the oil seals currently available on the market are not easy to pre-fix during use, which makes it difficult to install the oil seals during installation, prolongs the installation time of the oil seals, and further reduces the installation efficiency.

[0004] Therefore, it is necessary to provide an oil seal with a pre-fixing mechanism to solve the above technical problems. Utility Model Content

[0005] The utility model provides an oil seal with a pre-fixing mechanism, which solves the problem that the oil seals in the existing market are not convenient to be pre-fixed during use, resulting in difficulty in installing the oil seal during installation, prolonging the installation time of the oil seal and thus reducing the installation efficiency.

[0006] The utility model provides an oil seal with a pre-fixing mechanism, comprising: an oil seal main body, a mounting groove is provided on the top of the oil seal main body, a retaining frame is mounted inside the oil seal main body through the mounting groove, sliding grooves are provided in an equidistant annular shape on the outside of the retaining frame, and the number of the sliding grooves is four, positioning blocks are slidably mounted inside the retaining frame through the four sliding grooves, and the number of the positioning blocks is four, springs are fixedly mounted on one side of the outside of the four positioning blocks, and one end of the four springs is fixedly mounted on the retaining frame.

[0007] Preferably, a mounting piece is fitted between the retaining frame and the oil seal body, and the inner wall of the mounting piece is provided with equidistant annular positioning grooves, and the number of the positioning grooves is four, and the positioning grooves are matched with the positioning blocks.

[0008] Preferably, the bottom of the oil seal body is provided with four first mounting holes in an annular shape and at equal distances, and the bottom of the retaining frame is provided with four second mounting holes in an annular shape and at equal distances.

[0009] Preferably, a vertical center line of the first mounting hole coincides with a vertical center line of the second mounting hole.

[0010] Preferably, the bottom of the oil seal body is threadedly connected with bolts through the first mounting hole, and the number of the bolts is four.

[0011] Preferably, the bottom of the mounting member is provided with third mounting holes in an equidistant ring shape, and the number of the third mounting holes is four, and the bolts are matched with the third mounting holes.

[0012] Compared with the related art, the oil seal with a pre-fixing mechanism provided by the utility model has the following beneficial effects:

[0013] The oil seal body and the retaining frame are preliminarily engaged and fixed through the mounting groove, and the first mounting hole and the second mounting hole are ensured to be aligned, and the end of the mounting piece and the oil seal is inserted into the interior of the mounting groove. At this time, the retaining frame is located inside the mounting piece, and the inner wall of the oil seal body fits with the outer surface of the mounting piece. Since the top of the positioning block is provided with a chamfer, the positioning block slides toward the inside of the slide groove during the downward pressing of the mounting piece, and the spring is compressed. After the mounting piece completely enters the mounting groove, the positioning block moves outward due to the resetting effect of the spring, and the positioning block is adapted to the positioning groove. The positioning block is inserted into the interior of the mounting piece through the positioning groove, thereby fixing the retaining frame and the mounting piece. It has a pre-fixing mechanism and improves the efficiency of installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A structural schematic diagram of a preferred embodiment of an oil seal with a pre-fixing mechanism provided by the utility model;

[0015] Figure 2 for Figure 1 The schematic diagram of the installation structure of the installation parts shown;

[0016] Figure 3 for Figure 1 The schematic diagram of the positioning block installation structure is shown.

[0017] In the figure: 1. oil seal body; 2. mounting groove; 3. retaining frame; 4. slide groove; 5. positioning block; 6. spring; 7. mounting piece; 8. positioning groove; 9. first mounting hole; 10. second mounting hole; 11. bolt; 12. third mounting hole. DETAILED DESCRIPTION

[0018] The utility model is further described below in conjunction with the accompanying drawings and implementation modes.

[0019] Please refer to Figure 1 , Figure 2 and Figure 3 ,in Figure 1 A structural schematic diagram of a preferred embodiment of an oil seal with a pre-fixing mechanism provided by the utility model; Figure 2 for Figure 1The schematic diagram of the installation structure of the installation parts shown; Figure 3 for Figure 1 The schematic diagram of the positioning block installation structure shown in the figure is an oil seal with a pre-fixing mechanism, comprising: an oil seal body 1, a mounting groove 2 is opened on the top of the oil seal body 1, a retainer 3 is mounted inside the oil seal body 1 through the mounting groove 2, and a slide groove 4 is opened on the outside of the retainer 3 in an equidistant ring shape, and the number of the slide grooves 4 is four, and positioning blocks 5 are slidably installed inside the retainer 3 through four slide grooves 4, and the number of the positioning blocks 5 is four, a spring 6 is fixedly installed on one side of the outside of the four positioning blocks 5, and one end of the four springs 6 is fixedly installed on the retainer 3, the oil seal body 1 and the retainer 3 are preliminarily engaged and fixed through the mounting groove 2, and it is ensured that the first mounting hole 9 is aligned with the retainer 3. The second mounting hole 10 is aligned, and one end of the mounting piece 7 and the oil seal is installed is inserted into the interior of the mounting groove 2. At this time, the retaining frame 3 is located inside the mounting piece 7, and the inner wall of the oil seal body 1 fits with the outer surface of the mounting piece 7. Since the top of the positioning block 5 is provided with a chamfer, during the pressing process of the mounting piece 7, the positioning block 5 slides toward the inside of the slide groove 4, and the spring 6 is compressed. After the mounting piece 7 completely enters the mounting groove 2, the positioning block 5 moves outward due to the restoring effect of the spring 6, and the positioning block 5 is adapted to the positioning groove 8. The positioning block 5 is inserted into the interior of the mounting piece 7 through the positioning groove 8, thereby fixing the retaining frame 3 and the mounting piece 7. It has a pre-fixing mechanism and improves the efficiency of installation.

[0020] A mounting member 7 is fitted between the retaining frame 3 and the oil seal body 1. The inner wall of the mounting member 7 is provided with equidistant annular positioning grooves 8, and the number of the locating grooves 8 is four. The locating grooves 8 are matched with the positioning block 5. The bottom of the oil seal body 1 is provided with equidistant annular first mounting holes 9, and the number of the first mounting holes 9 is four. The bottom of the retaining frame 3 is provided with equidistant annular second mounting holes 10, and the number of the second mounting holes 10 is four. The vertical center line of the first mounting hole 9 coincides with the vertical center line of the second mounting hole 10. The bottom of the oil seal body 1 is threadedly connected with a bolt 11 through the first mounting hole 9, and the number of the bolts 11 is four. After the mounting member 7 is pre-fixed, the bolt 11 is aligned with the first mounting hole 9, and the bolt 11 is rotated. The bolt 11 passes through the first mounting hole 9 and penetrates the oil seal body 1, and then passes through the retaining frame 3 through the second mounting hole 10, so that the oil seal body 1 is also fixed with the retaining frame 3. The structure is simple and convenient for disassembly and assembly.

[0021] The bottom of the mounting member 7 is provided with third mounting holes 12 in an equidistant circular shape, and the number of the third mounting holes 12 is four. The bolts 11 are adapted to the third mounting holes 12, and the bolts 11 are threadedly installed on the mounting member 7 through the third mounting holes 12, thereby fixing the oil seal body 1, the retaining frame 3 and the mounting member 7, thereby greatly improving the stability of the installation.

[0022] The working principle of an oil seal with a pre-fixing mechanism provided by the utility model is as follows:

[0023] The first step: preliminarily engage and fix the oil seal body 1 and the retaining frame 3 through the mounting groove 2, and ensure that the first mounting hole 9 and the second mounting hole 10 are aligned, and insert the mounting piece 7 and one end of the oil seal installation into the mounting groove 2. At this time, the retaining frame 3 is located inside the mounting piece 7, and the inner wall of the oil seal body 1 fits with the outer surface of the mounting piece 7. Since the top of the positioning block 5 is provided with a chamfer, during the pressing process of the mounting piece 7, the positioning block 5 slides toward the inside of the slide groove 4, and the spring 6 is compressed. After the mounting piece 7 completely enters the mounting groove 2, due to the reset effect of the spring 6, the positioning block 5 moves outward, and the positioning block 5 is adapted to the positioning groove 8. The positioning block 5 is inserted into the interior of the mounting piece 7 through the positioning groove 8, so that the retaining frame 3 and the mounting piece 7 are fixed, and a pre-fixing mechanism is provided, which improves the efficiency of installation.

[0024] Step 2: After the pre-fixation of the mounting member 7 is completed, the bolt 11 is aligned with the first mounting hole 9, and the bolt 11 is turned. The bolt 11 passes through the first mounting hole 9 through the thread of the oil seal body 1, and then passes through the second mounting hole 10 through the thread of the retaining frame 3, so that the oil seal body 1 is also fixed with the retaining frame 3. The structure is simple and convenient for disassembly and assembly. The bolt 11 is threadedly installed with the mounting member 7 through the third mounting hole 12, so that the oil seal body 1, the retaining frame 3 and the mounting member 7 are fixed, which greatly improves the stability of the installation.

[0025] Compared with the related art, the oil seal with a pre-fixing mechanism provided by the utility model has the following beneficial effects:

[0026] The oil seal body 1 and the retaining frame 3 are preliminarily engaged and fixed through the mounting groove 2, and the first mounting hole 9 and the second mounting hole 10 are ensured to be aligned, and the mounting piece 7 and one end of the oil seal are inserted into the interior of the mounting groove 2. At this time, the retaining frame 3 is located inside the mounting piece 7, and the inner wall of the oil seal body 1 fits with the outer surface of the mounting piece 7. Since the top of the positioning block 5 is provided with a chamfer, during the pressing process of the mounting piece 7, the positioning block 5 slides toward the inside of the slide groove 4, and the spring 6 is compressed. After the mounting piece 7 completely enters the mounting groove 2, the positioning block 5 moves outward due to the resetting effect of the spring 6, and the positioning block 5 is adapted to the positioning groove 8. The positioning block 5 is inserted into the interior of the mounting piece 7 through the positioning groove 8, so that the retaining frame 3 and the mounting piece 7 are fixed, and a pre-fixing mechanism is provided, thereby improving the efficiency of installation.

[0027] The above are only embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An oil seal with a pre-fixing mechanism, comprising: An oil seal body (1) is characterized in that: a mounting groove (2) is provided at the top of the oil seal body (1); a retainer (3) is mounted inside the oil seal body (1) through the mounting groove (2); a slide groove (4) is provided outside the retainer (3) in an equidistant annular shape; the number of the slide grooves (4) is four; positioning blocks (5) are slidably mounted inside the retainer (3) through the four slide grooves (4); the number of the positioning blocks (5) is four; a spring (6) is fixedly mounted on one side of the outside of the four positioning blocks (5); one end of each of the four springs (6) is fixedly mounted on the retainer (3).

2. The oil seal with a pre-fixing mechanism according to claim 1, characterized in that: A mounting member (7) is fitted between the retaining frame (3) and the oil seal body (1); the inner wall of the mounting member (7) is provided with equidistant annular positioning grooves (8), and there are four positioning grooves (8); the positioning grooves (8) are matched with the positioning block (5).

3. The oil seal with a pre-fixing mechanism according to claim 2, characterized in that: The bottom of the oil seal body (1) is provided with first mounting holes (9) in an equidistant annular shape, and the number of the first mounting holes (9) is four; the bottom of the retaining frame (3) is provided with second mounting holes (10) in an equidistant annular shape, and the number of the second mounting holes (10) is four.

4. The oil seal with a pre-fixing mechanism according to claim 3, characterized in that: The vertical center line of the first mounting hole (9) and the vertical center line of the second mounting hole (10) coincide with each other.

5. The oil seal with a pre-fixing mechanism according to claim 4, characterized in that: The bottom of the oil seal body (1) is threadedly connected with bolts (11) through a first mounting hole (9), and the number of the bolts (11) is four.

6. The oil seal with a pre-fixing mechanism according to claim 5, characterized in that: The bottom of the mounting member (7) is provided with third mounting holes (12) in an equidistant annular shape, and the number of the third mounting holes (12) is four, and the bolts (11) are adapted to the third mounting holes (12).

Images