Auxiliary device for installing plum blossom check ring

Abstract

The utility model relates to an auxiliary device for installing a plum-blossom-shaped check ring, which comprises an adsorption part and a supporting part, and the adsorption part is used for adsorbing the plum-blossom-shaped check ring; the adsorption part is provided with a central through hole, the central through hole is used for containing a convex part on the plum blossom check ring, and the diameter of the central through hole is not smaller than the inner diameter of an annular outer ring on the plum blossom check ring; one end of the supporting part is detachably connected with the adsorption part; when the adsorption part adsorbs the plum blossom check ring, the plum blossom check ring is connected with the supporting part at the same time, and the center axis of the center through hole coincides with the center axis of the plum blossom check ring. The center shaft of the adsorption part coincides with the center shaft of the plum-blossom-shaped check ring, the plum-blossom-shaped check ring can be easily aligned with the center of a shaft rod of an injection molding part and pressed to a designated position with the help of the auxiliary device, and the situation that the plum-blossom-shaped check ring is directly and manually pressed to the designated position, and consequently fastening is not in place is possibly caused is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of shaft retaining rings, in particular to an auxiliary device for installing a plum blossom retaining ring. Background Art

[0002] A plum blossom retaining ring is a shaft retaining ring that secures the shaft of a component to prevent other parts mounted on the shaft from moving. Plum blossom retaining rings are commonly used to secure injection-molded vehicle interior parts. To use them, first insert the molded part into the vehicle interior. The post of the molded part passes through the through-hole of the vehicle interior. The plum blossom retaining ring is then clamped onto the post, with the bottom of the ring firmly against the surface of the interior to prevent it from loosening.

[0003] Authorization announcement number: CN 215567199 U, application date: 2020.08.11, the name of the utility model is a high-quality wear-resistant plum blossom hole retaining ring with a thermal expansion part. This application discloses a high-quality wear-resistant plum blossom hole retaining ring with a thermal expansion part, including a retaining ring body; a plum blossom hole, which is arranged on the retaining ring body; a wear-resistant layer, which is arranged on the upper surface of the retaining ring body; an anti-slip layer, which is arranged on the lower surface of the retaining ring body; a thermal expansion part, which is arranged at the bottom of the retaining ring body. Through the setting of the wear-resistant layer, the upper surface of the retaining ring body is not easy to wear, and the setting of the anti-slip layer increases the friction between the bottom surface of the retaining ring body and the mounting surface of the equipment during installation, and it is not easy to rub against the mounting surface, so that the lower surface of the retaining ring body and the mounting surface of the equipment will not be lost due to friction. Through the setting of the thermal expansion part, it expands when heated, so that the lower surface of the retaining ring body and the mounting surface of the equipment remain in close fit.

[0004] The above-mentioned prior art is an improvement on the plum blossom retaining ring itself, and does not provide any technical inspiration on how to install the plum blossom retaining ring simply and conveniently. Utility Model Content

[0005] In view of the defect that the above-mentioned prior art does not provide a method for installing the plum blossom retaining ring so that it can be fastened to the interior decoration part, the purpose of the utility model is to provide an auxiliary device for installing the plum blossom retaining ring.

[0006] The technical solution provided by this utility model is:

[0007] An auxiliary device for installing a plum blossom retaining ring, comprising:

[0008] An adsorption portion, which is used to adsorb the plum blossom retaining ring; the adsorption portion is provided with a central through hole, the central through hole is used to accommodate the protrusion on the plum blossom retaining ring, and the diameter of the central through hole is not less than the inner diameter of the annular outer ring on the plum blossom retaining ring;

[0009] The support portion is hollow and one end of the support portion is detachably connected to the adsorption portion;

[0010] When the adsorption portion adsorbs the plum blossom retaining ring, the plum blossom retaining ring is connected to the supporting portion at the same time, and the central axis of the central through hole coincides with the central axis of the plum blossom retaining ring.

[0011] Furthermore, the support portion is provided with a through hole, the through hole is used for the injection molded rod frame to penetrate, and the aperture of the through hole is not larger than the aperture of the central through hole.

[0012] Furthermore, a recessed portion is provided at one end of the support portion, the recessed portion is matched with the adsorption portion, and the recessed height of the recessed portion is the same as the thickness of the adsorption portion.

[0013] Furthermore, the diameter of the through hole is larger than the nominal inner diameter of the plum blossom retaining ring.

[0014] Furthermore, the adsorption part is an annular magnet, whose large circle radius is not less than the large circle radius of the annular outer circle, and its small circle radius is not less than the small circle radius of the annular outer circle. At the same time, the small circle radius of the annular magnet is smaller than the large circle radius of the annular outer circle.

[0015] Furthermore, the support portion includes a support rod and a tool head fixedly connected to one end of the support rod); the support rod and the tool head are coaxial cylinders with different radii, the outer diameter of the tool head is larger than the outer diameter of the support rod, and the recessed portion is arranged in the tool head.

[0016] Furthermore, the tool head is made of metal and is used for mutual adsorption with the adsorption part.

[0017] Furthermore, the support rod wall thickness is not less than 15 mm.

[0018] Furthermore, it also includes a handle, which is fixedly connected to the other end of the support part, and the handle is used to increase the force application area.

[0019] Furthermore, the handle and the support portion are perpendicular to each other.

[0020] Compared with the prior art, the technical solution provided by this utility model has the following beneficial effects:

[0021] The auxiliary device of the utility model is provided with an adsorption portion, which adsorbs the plum blossom retaining ring and can make the central axis of the adsorption portion coincide with the central axis of the plum blossom retaining ring. With the help of this auxiliary device, the plum blossom retaining ring can be easily aligned with the center of the shaft of the injection molded part and pressed into the designated position, avoiding the situation where the plum blossom retaining ring is directly pressed into the designated position by hand and may not be tightened properly. In addition, when using, because the device is relatively small in size and can be controlled with one hand, the other hand can be freed up to fix the injection molded part and ensure that the plum blossom retaining ring is tightened in place. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1This is a schematic diagram of the overall structure of the auxiliary device in one embodiment of the present application;

[0023] Figure 2 This is a schematic diagram of the overall structure of the support portion in one embodiment of the present application;

[0024] Figure 3 This is a schematic structural diagram of the connection between the plum blossom retaining ring and the support portion in one embodiment of the present application;

[0025] Figure 4 This is a schematic diagram of the structure of the adsorption portion and the recessed portion in one embodiment of the present application;

[0026] Figure 5 This is a schematic diagram of the support rod structure in one embodiment of the present application;

[0027] Figure 6 This is a schematic diagram of the recessed portion and through-hole structure in one embodiment of the present application.

[0028] Explanation of the numbers in the schematic diagram:

[0029] Adsorption portion 1, through hole 11;

[0030] Support portion 2, recessed portion 21, support rod 22, tool head 23, through hole 24;

[0031] Plum blossom retaining ring 3, raised portion 31, annular outer ring 32;

[0032] Handle 4. DETAILED DESCRIPTION

[0033] In order to further understand the content of the present invention, the present invention is described in detail with reference to the accompanying drawings and embodiments.

[0034] The structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for understanding and reading by those familiar with this technology. They are not used to limit the conditions for implementation of the present invention and therefore have no substantial technical significance. Any modification of the structure, change in the proportion relationship, or adjustment of the size should still fall within the scope of the technical content disclosed by the present utility model without affecting the efficacy and purpose of the present invention. At the same time, terms such as "upper", "lower", "left", "right", and "middle" quoted in this specification are only for the convenience of description and are not used to limit the scope of implementation. Changes or adjustments in their relative relationships should also be considered as the scope of implementation of the present invention without substantially changing the technical content.

[0035] The main function of the plum blossom retaining ring is axial fixation and positioning. It is commonly used in various mechanical equipment, automotive industry and automation equipment to play a role in buffering and protection. In some areas, it is also called plum blossom disk.

[0036] Plum blossom retaining rings are typically made from 65Mn steel, a material with high strength, hardness, and flexibility, making it suitable for securing and positioning heavy machinery. They also offer high centering accuracy and excellent wear resistance, maintaining stable performance in high temperatures and harsh environments.

[0037] Plum blossom retaining rings are widely used in various heavy-duty machinery and equipment, particularly on coupling drive shafts for axial fixation and positioning. They effectively cushion the drive shaft from shock and vibration, protecting the equipment from damage. Plum blossom retaining rings are also suitable for industrial environments requiring high-strength fixing and wear resistance.

[0038] For example, when using the plum blossom retaining ring in the vehicle interior, the usage steps are as follows: first, insert the injection molded part into the vehicle interior, and then pass the circular shaft of the injection molded part through the through hole of the vehicle interior. Then, use the plum blossom retaining ring to clamp the shaft, and the annular outer ring is tightly attached to the surface of the interior to prevent the vehicle interior from loosening.

[0039] The present application provides a device for assisting in the installation of a plum blossom retaining ring, which can accurately position the circular shaft of an injection-molded part and conveniently and quickly press the plum blossom retaining ring onto a vehicle interior component.

[0040] The present application discloses an auxiliary device for installing a plum blossom retaining ring, comprising an adsorption portion 1 and a support portion 2. Due to the inherent characteristics of the plum blossom retaining ring, the adsorption portion 1 can adsorb the plum blossom retaining ring 3. Preferably, the adsorption portion 1 is a magnet.

[0041] The plum blossom retaining ring 3 is composed of two integrally formed parts: a raised portion 31 and an annular outer ring 32. More specifically, the adsorption portion 1 is preferably an annular magnet, whose large circle radius is not less than that of the large circle of the annular outer ring 32, and whose small circle radius is not less than that of the small circle of the annular outer ring 32. Furthermore, the small circle radius of the annular magnet is smaller than the large circle radius of the annular outer ring 32.

[0042] The most preferred solution is that the radius of the large and small circles of the annular magnet are the same as the radius of the large and small circles of the annular outer ring 32 to achieve accurate adsorption. The annular magnet can be replaced according to the different sizes of the plum blossom retaining ring.

[0043] The center of the adsorption part 1 is provided with a through hole 11 for accommodating the protrusion 31. The protrusion 31 can deform freely in the through hole 11 without interference. When the adsorption part 1 adsorbs the plum blossom retaining ring 3, the central axis of the through hole 11 coincides with the central axis of the plum blossom retaining ring 3.

[0044] The support portion 2 is hollow and has a through-hole 24. This through-hole 24 is provided to facilitate the insertion of the shaft rod of the injection molded part. The diameter of the through-hole 24 is no larger than the diameter of the through-hole 11 and is larger than the nominal inner diameter of the plum blossom retaining ring 3. The nominal inner diameter of the plum blossom retaining ring 3 is smaller than the outer diameter of the injection molded part's shaft rod because the protrusion 31 is an elastic component that can deform.

[0045] When the plum blossom retaining ring 3 is inserted into the shaft of the injection molded part, the protrusion 31 is forced to open slightly, so that the nominal inner diameter of the plum blossom retaining ring 3 is consistent with the outer diameter of the shaft of the injection molded part. Therefore, the end face of the component to be fixed can be tightly clamped to prevent it from shaking, and the plum blossom retaining ring 3 can fully play its role.

[0046] A recessed portion 21 is provided at one end of the support portion 2, which is the accommodating cavity of the adsorption portion 1. The recessed portion 21 is adapted to the adsorption portion 1, and its recessed height is the same as the thickness of the adsorption portion 1, that is, the end of the support portion 2 is flush with the end face of the adsorption portion 1.

[0047] Therefore, when the adsorption portion 1 adsorbs the plum blossom retaining ring 3 , the plum blossom retaining ring 3 is also connected to the supporting portion 2 at the same time.

[0048] More specifically, the support portion 2 includes a support rod 22 and a tool head 23. The tool head 23 is fixedly connected to one end of the support rod 22. The central axes of the support rod 22 and the tool head 23 coincide with each other, and the outer diameter of the tool head 23 is larger than that of the support rod 22. The recessed portion 21 is provided within the tool head 23. This configuration saves material; the support rod 22 does not need to be the same width as the tool head 23 from top to bottom. However, to ensure the strength of the support rod 22, its wall thickness should preferably be no less than 15 mm.

[0049] In order to prevent the adsorption part 1 from falling off, the tool head 22 is preferably made of metal. The specific material of the tool head 22 can be a ferromagnetic material that is attracted to a magnet, and is used to adsorb the adsorption part 1 to the recessed portion 21. The material of the support rod 22 can be the same as that of the tool head 22, or it can be different.

[0050] The cross-sectional outer edges of the support rod 22 and tool head 23 can also be square or other shapes. The cross-section described here is a plane perpendicular to the central axis of the support portion 2. The through hole 24 of the support portion 2 remains a circular hole that matches the injection molded part's shaft. The outer edge of the suction portion 1 can also be square or other shapes, but it should be noted that the outer edge of the suction portion 1 lies outside the large circle of the annular outer ring 32 to ensure that the plum blossom retaining ring 3 can abut against the suction portion 1. The central through hole of the suction portion 1 remains circular to facilitate deformation of the protrusion 31.

[0051] The device further includes a handle 4, which is connected to the end of the support portion 2 away from the recessed portion 21. The handle 4 and the support portion 2 are perpendicular to each other. The handle 4 increases the force application area, making it easier to press the support portion 2 and the plum blossom retaining ring 3. Preferably, the support portion 2 and the handle 4 are fixedly connected at their midpoints, so that the force applied to the support portion 2 and the plum blossom retaining ring 3 is more evenly distributed.

[0052] The handle 4 can be a straight rod or any other shape, as long as it is convenient to hold and apply force.

[0053] The above is a schematic description of the present invention and its embodiments, which is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. Therefore, if a person skilled in the art is inspired by this and, without departing from the inventive purpose of the present invention, designs a structure and embodiment similar to the technical solution without inventiveness, they shall fall within the scope of protection of the present invention.

Claims

1. An auxiliary device for installing a plum blossom retaining ring, characterized in that: include, An adsorption portion (1) is used to adsorb the plum blossom retaining ring (3); the adsorption portion (1) is provided with a central through hole (11), the central through hole (11) is used to accommodate a protrusion (31) on the plum blossom retaining ring (3), and the diameter of the central through hole (11) is not less than the inner diameter of the annular outer ring (32) on the plum blossom retaining ring (3); A support portion (2), the support portion (2) is hollow, and one end of the support portion (2) is detachably connected to the adsorption portion (1); When the adsorption portion (1) adsorbs the plum blossom retaining ring (3), the plum blossom retaining ring (3) is simultaneously connected to the support portion (2), and the central axis of the central through hole (11) coincides with the central axis of the plum blossom retaining ring (3).

2. The auxiliary device for installing a plum blossom retaining ring according to claim 1, characterized in that: The support portion (2) is provided with a through hole (24), and the through hole (24) is used for the injection molded part shaft to penetrate, and the aperture of the through hole (24) is not larger than the aperture of the central through hole (11).

3. The auxiliary device for installing a plum blossom retaining ring according to claim 2, characterized in that: A recessed portion (21) is provided at one end of the support portion (2), the recessed portion (21) is adapted to the adsorption portion (1), and the recessed height of the recessed portion (21) is the same as the thickness of the adsorption portion (1).

4. The auxiliary device for installing a plum blossom retaining ring according to claim 2, characterized in that: The diameter of the through hole (24) is larger than the nominal inner diameter of the plum blossom retaining ring (3).

5. The auxiliary device for installing a plum blossom retaining ring according to claim 1, characterized in that: The adsorption portion (1) is an annular magnet, the large circle radius of which is not less than the large circle radius of the annular outer ring (32), and the small circle radius of which is not less than the small circle radius of the annular outer ring (32), while the small circle radius of the annular magnet is smaller than the large circle radius of the annular outer ring (32).

6. The auxiliary device for installing a plum blossom retaining ring according to claim 3, characterized in that: The support portion (2) comprises a support rod (22) and a tool head (23) fixedly connected to one end of the support rod (22); The support rod (22) and the tool head (23) are coaxial cylinders with different radii. The outer diameter of the tool head (23) is larger than the outer diameter of the support rod (22). The recessed portion (21) is arranged in the tool head (23).

7. The auxiliary device for installing a plum blossom retaining ring according to claim 6, characterized in that: The tool head (23) is made of metal and is used for mutual adsorption with the adsorption portion (1).

8. The auxiliary device for installing a plum blossom retaining ring according to claim 6, characterized in that: The support rod (22) has a wall thickness of not less than 15 mm.

9. The auxiliary device for installing a plum blossom retaining ring according to claim 1, characterized in that: It also includes a handle (4), which is fixedly connected to the other end of the support portion (2), and the handle (4) is used to increase the force application area.

10. The auxiliary device for installing a plum blossom retaining ring according to claim 9, characterized in that: The handle (4) and the support portion (2) are perpendicular to each other.

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