Booster locking plate

Abstract

The utility model relates to the field of boosters, and discloses a booster locking plate which comprises a framework (1) in the middle and a rubber coating layer (2) coated outside the framework (1), an outer positioning part (3) is formed on the outer side of the rubber coating layer (2), a gap between the frameworks (1) is an installation gap (4), and an inner positioning part (5) is formed on the rubber coating layer (2) in the installation gap (4). The locking plate structure has the advantages of reliable locking, no damage to other parts, long service life and the like.

Description

Technical Field

[0001] The utility model relates to the field of boosters, in particular to a booster locking piece. Background Art

[0002] To address the return noise, technicians have devised several solutions, such as changing the rear seal shape of the booster housing. However, this approach is difficult and costly to implement, and is not suitable for most boosters. Chinese patent CN208164971U discloses a locking plate and booster for reducing booster noise. The locking plate comprises a body that is snap-fitted into the booster housing, with the elastic layers of the head and legs correspondingly abutting the upper and lower sidewalls of the inner periphery of the booster housing.

[0003] However, this type of lock plate has the following problems: the traditional skeleton structure is a stamped part with high cost; secondly, the inner limit structure has small limit teeth that are easy to break away from the limit; and there is no limit on the outside. After the lock plate falls off, it will cause the lock plate to directly contact and rub against the back shell. Utility Model Content

[0004] The utility model aims at the shortcomings of the prior art and provides a booster locking piece.

[0005] In order to solve the above technical problems, the present invention is solved by the following technical solutions:

[0006] A booster lock piece includes a central frame and a rubber layer covering the outside of the frame, an outer positioning is formed on the outer side of the rubber layer, a gap between the frames is an installation gap, and the rubber layer in the installation gap forms an inner positioning.

[0007] Preferably, the frame is a bent part, the cross section of the frame is U-shaped, and the rubber is coated on the outside of the frame, wherein a supporting protrusion is formed on the inner side of the frame, and the supporting protrusion is located inside the inner limit.

[0008] Preferably, the inner limit comprises an arc portion located near the opening end of the installation gap and a support portion near the bent portion of the frame, the surface of the support portion is a plane, and the surface of the arc portion is a curved surface.

[0009] Preferably, the trajectory of the cross section of the inner limit arc portion is an overall upward S-shaped curve, and the trajectory of the cross section of the support portion is a horizontal line.

[0010] Preferably, the external positioning member is located outside the frame, the cross-section of the external positioning member is trapezoidal, and a hemispherical contact portion is provided at the lower end of the external positioning member.

[0011] Preferably, the lower edge line of the cross section of the contact portion is a downwardly convex arc line.

[0012] Preferably, the material of the rubber layer is elastic material.

[0013] This solution offers the following advantages over existing technologies: It is less expensive than traditional lock pieces and can be positioned both internally and externally, preventing the lock piece from falling off and causing direct contact and friction with the rear housing. Furthermore, the contact area of ​​the positioning portion is large, ensuring reliable positioning and a long service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the locking piece in the prior art.

[0015] Figure 2 This is a schematic diagram of the overall structure of the locking piece of this solution.

[0016] Figure 3 It is a schematic diagram of the assembly structure of the lock plate and the housing.

[0017] The technical names of the figures are: 1-skeleton, 2-rubber layer, 3-external positioning, 4-installation gap, 5-inner positioning, 6-support protrusion, 7-arc-shaped part, 8-support part, 9-interference part. DETAILED DESCRIPTION

[0018] The present invention is described in further detail below with reference to the accompanying drawings and embodiments.

[0019] Example 1

[0020] A booster locking plate comprises a central frame 1 and a rubberized layer 2 covering the frame 1. The rubberized layer 2 has an outer retainer 3 formed on its outer side. The gap between the frames 1 constitutes an installation gap 4. The rubberized layer 2 in the installation gap 4 has an inner retainer 5 formed on its outer side. The outer retainer 3 and the inner retainer 5 are used to limit the position of the locking plate. Both the outer retainer 3 and the inner retainer 5 are solid structures formed by the rubberized layer 2, which is made of rubber.

[0021] The frame 1 is a bent component with a U-shaped cross-section. The exterior of the frame 1 is covered with a rubberized coating. A support protrusion 6 is formed on the interior of the frame 1 and located within the inner stop. The frame 1 is formed from a bent metal sheet. The inner stop comprises an arcuate portion 7 located near the opening of the installation gap 4 and a support portion 8 near the bent portion of the frame 1. The support portion 8 is flat, while the arcuate portion 7 is curved. This structural design facilitates installation of the locking plate and provides stable locking after installation.

[0022] In this embodiment, the trajectory of the cross section of the inner limit arc portion 7 is an overall upward S-shaped curve, and the trajectory of the cross section of the support portion 8 is a horizontal line. This structure can provide stable support and will not cause jamming during assembly, and will not cause damage to the assembled parts.

[0023] In this embodiment, the external retainer 3 is located outside the frame 1. Its cross-section is trapezoidal, and its lower end is provided with a hemispherical contact portion. The lower edge of the contact portion's cross-section is a downwardly convex arc. This contact portion's shape allows for a tight fit on the part to be assembled. The rubberized layer 2 is made of an elastic material.

[0024] Compared to traditional locking plates, this solution's locking plate is less expensive and can be positioned both internally and externally, preventing the locking plate from falling off and causing direct contact and friction with the back cover. The large contact area of ​​the positioning portion also provides advantages such as reliable positioning and a long service life.

[0025] Example 2

[0026] The booster adopts the locking plate structure of embodiment 1.

[0027] Example 3

[0028] A vehicle adopts the locking plate structure of embodiment 1.

Claims

1. A booster locking plate, characterized in that: The invention comprises a central frame (1) and a rubber coating (2) covering the outside of the frame (1); an outer positioning portion (3) is formed on the outer side of the rubber coating (2); a gap between the frames (1) is an installation gap (4); and an inner positioning portion (5) is formed on the rubber coating (2) in the installation gap (4).

2. The booster locking plate according to claim 1, characterized in that: The frame (1) is a bent part, the cross section of the frame (1) is U-shaped, and the outside of the frame (1) is covered with rubber, wherein a supporting protrusion (6) is formed on the inner side of the frame (1), and the supporting protrusion (6) is located inside the inner limit.

3. The booster locking plate according to claim 1, characterized in that: The inner limit comprises an arc portion (7) located near the opening end of the installation gap (4) and a support portion (8) near the bent portion of the frame (1); the surface of the support portion (8) is a plane, and the surface of the arc portion (7) is a curved surface.

4. The booster locking plate according to claim 3, characterized in that: The trajectory of the cross section of the inner limit arc portion (7) is an overall upward S-shaped curve, and the trajectory of the cross section of the support portion (8) is a horizontal line.

5. The booster locking piece according to claim 3, characterized in that: The outer positioning part (3) is located outside the frame (1), the cross-section of the outer positioning part (3) is trapezoidal, and the lower end of the outer positioning part (3) is provided with a hemispherical contact part.

6. The booster locking piece according to claim 5, characterized in that: The lower side line of the cross section of the contact portion is a downwardly convex arc line.

7. The booster locking plate according to claim 1, characterized in that: The material of the rubber layer (2) is elastic material.

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