A device for assembling an outer rubber ring of a rubber tube

Abstract

The utility model relates to the technical field of rubber tube assembly outer rubber ring, and its to solve the problem of existing technology rubber ring assembly device, in the process of rubber ring is assembled in rubber tube, and the assembly position of rubber ring is not accurate such as deviation, misplacement etc.

Description

Technical Field

[0001] This utility model relates to the field of rubber hose assembly outer rubber ring technology, and more specifically, to an assembly device for rubber hose outer rubber ring. Background Technology

[0002] As a key component in fluid transportation and power transmission, rubber hoses are widely used in automobile manufacturing, engineering machinery and industrial pipelines. In the production and assembly of rubber hoses, the assembly of the outer rubber ring is one of the core processes to ensure its connection reliability, sealing performance and service life. The outer rubber ring is usually made of rubber or elastomer and needs to be fitted onto the end of the hose or a specific position through interference fit to play the roles of sealing and preventing leakage, buffering and shock absorption, and fixing connection.

[0003] In existing technologies, the elastic properties of the outer rubber ring are typically utilized to pre-stretch it before the rubber tube is passed through, and then the rubber ring is loosened to achieve assembly. For example, the patent with publication number CN214490408U discloses an O-ring assembly fixture. Specifically, it uses a cylinder to drive the movement of pullers. The hooks of the pullers pull the O-ring apart to facilitate the insertion of other components. The cylinder then returns to its original position to tighten the O-ring connection. However, although the multiple pullers can pull the rubber ring in multiple directions simultaneously, after the rubber ring is fitted onto the multiple hooks of the pullers, the O-ring may shift, misalign, or even slip off as the pullers move. This results in inaccurate assembly positions after the rubber ring is fitted onto the rubber tube, requiring rework, which is time-consuming and labor-intensive.

[0004] Based on the above description, there is an urgent need for an assembly device that can accurately install the outer rubber ring onto the rubber tube. Utility Model Content

[0005] The purpose of this utility model is to provide an assembly device for the outer rubber ring of a rubber tube, which aims to solve the technical problem that in the process of installing the rubber ring onto the rubber tube, the rubber ring may be misaligned or shifted, resulting in inaccurate assembly position and requiring rework, which is time-consuming and labor-intensive.

[0006] The embodiments of this utility model are achieved through the following technical solutions: An assembly device for an outer rubber ring of a hose includes multiple telescopic components and a mounting plate; a positioning groove is recessed in the center of the mounting plate; multiple telescopic components are symmetrically arranged outside the positioning groove; each telescopic component extends towards the center of the positioning groove and has an L-shaped hook; a limiting component is provided on the side of the L-shaped hook away from the positioning groove.

[0007] Preferably, the limiting component includes a square connecting block; one end of the L-shaped hook near the positioning groove is a hook portion; the hook portion extends along the axial direction of the positioning groove; the hook portion is located in the middle of the square connecting block; the square connecting block is located at one end of the hook portion near the positioning groove.

[0008] Preferably, the limiting component further includes a plurality of protruding rings; the plurality of protruding rings are spaced apart on one side of the hook portion away from the square connecting block.

[0009] Preferably, the inner radial direction of the plurality of convex rings toward the hook portion near the mounting plate gradually decreases.

[0010] Preferably, the outer sidewall of the convex ring away from the hook portion is an arc-shaped sidewall.

[0011] Preferably, both sides of the square connecting block are arc-shaped sidewalls.

[0012] Preferably, the telescopic assembly includes a telescopic member and a connecting plate connected to the telescopic member; the connecting plate extends toward the center of the positioning groove and is provided with an opening slot; the end of the L-shaped hook away from the positioning groove passes through the opening slot and is connected to the connecting plate through a connecting assembly.

[0013] Preferably, the connecting plate extends towards the center of the positioning groove and is provided with a first row of mounting holes and a second row of mounting holes; the first row of mounting holes and the second row of mounting holes are located opposite each other at the two ends of the opening slot; the connecting assembly includes a mounting block; the two ends of the mounting block are respectively provided with a first mounting hole corresponding to the first row of mounting holes and a second mounting hole corresponding to the second row of mounting holes; the mounting block abuts against the top of the end of the L-shaped hook that penetrates into the opening slot.

[0014] Preferably, the connecting assembly further includes a strip-shaped connecting block and a pressing bolt; one end of the strip-shaped connecting block is connected to the mounting block; the pressing bolt passes through the end of the strip-shaped connecting block away from the mounting block and enters the cavity of the opening slot; the pressing bolt enters the cavity of the opening slot and abuts against the end of the L-shaped hook away from the positioning groove.

[0015] The technical solution of this utility model embodiment has at least the following advantages and beneficial effects: This invention ensures precise alignment of the rubber ring through a central positioning groove and a synchronously retractable L-shaped hook, effectively solving the problems of axial movement and circumferential torsion during assembly, avoiding offset and misalignment during assembly, and thus improving production efficiency. Attached Figure Description

[0016] Figure 1This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the telescopic component in this utility model; Figure 3 for Figure 1 Exploded view; Figure 4 This is a schematic diagram of the L-shaped hook body in this utility model.

[0017] Icons: 1-Telescopic component, 11-Telescopic part, 12-Connecting plate, 121-Open slot, 2-Mounting plate, 21-Positioning groove, 3-L-shaped hook, 31-Hook part, 5-Limiting component, 51-Square connecting block, 52-Protruding ring, 6-Connecting component, 61-Mounting block, 62-Strip connecting block, 63-Pressure bolt. Detailed Implementation

[0018] The specific implementation method is described below with reference to the accompanying drawings.

[0019] Example 1 Please see Figures 1 to 4 The present invention provides the following technical solution: an assembly device for an outer rubber ring of a rubber hose, which is suitable for assembling a rubber ring at the end of a rubber hose.

[0020] Specifically, such as Figures 1 to 4 As shown, an assembly device for an outer rubber ring of a hose includes multiple telescopic components 1 and a mounting plate 2; a positioning groove 21 is recessed in the middle of the mounting plate 2; multiple telescopic components 1 are symmetrically arranged outside the positioning groove 21; an L-shaped hook 3 extends from the telescopic component 1 toward the center of the positioning groove 21; a limiting component 5 is provided on the side of the L-shaped hook 3 away from the positioning groove 21.

[0021] In this embodiment, the rubber tube is radially fixed and axially positioned by the positioning groove 21. At the same time, multiple circumferentially distributed and synchronously retractable L-shaped hooks are used to accurately hook and tension the rubber ring from the outside. With the help of the limiting component 5, the rubber ring can maintain the preset accurate position during and after assembly, preventing axial movement or circumferential torsion.

[0022] Specifically, such as Figure 2 and Figure 4 As shown, the limiting component 5 includes a square connecting block 51; the end of the L-shaped hook 3 near the positioning groove 21 is a hook part 31; the hook part 31 extends along the axial direction of the positioning groove 21; the hook part 31 is located in the middle of the square connecting block 51; the square connecting block 51 is located at the end of the hook part 31 near the positioning groove 21.

[0023] In this embodiment, the square connecting block 51 is located at the end of the hook part 31, and its size is larger than the cross-sectional diameter of the rubber ring. Therefore, when the rubber ring is pushed towards the rubber tube, the square connecting block 51 can act as a physical limiting block, precisely preventing the rubber ring from continuing to move towards the mounting plate 2, thereby limiting the rubber ring to the precise axial position required by the design.

[0024] Specifically, such as Figure 4 As shown, the limiting component 5 also includes a plurality of protruding rings 52; the plurality of protruding rings 52 are spaced apart on the side of the hook portion 31 away from the square connecting block 51. The inner radial direction of the hook portion 31 of the plurality of protruding rings 52 gradually decreases towards the mounting plate 2.

[0025] In this embodiment, the multi-stage tapered convex ring 52 structure can adapt to rubber rings with different tolerance ranges. During the tensioning process, the rubber ring will be embedded into the convex ring gap that best suits its size and will be effectively locked, which enhances the stability during the assembly process and prevents it from sliding or twisting on the L-shaped hook body 3.

[0026] Specifically, such as Figure 3 and Figure 4 As shown, the outer side wall of the convex ring 52 away from the hook part 31 is an arc-shaped side wall. Both sides of the square connecting block 51 are arc-shaped side walls.

[0027] In this embodiment, the square connecting block 51 and the hook part 31 in its middle form an isosceles triangle pulling angle, which further ensures that the rubber ring is not easily displaced after pre-positioning and during assembly into the rubber tube. Furthermore, both the outer wall of the convex ring 52 and the side wall of the square connecting block 51 adopt arc-shaped side walls, which can guide the rubber ring to hook onto the hook more smoothly, reduce friction and jamming, and also allow for a larger and softer contact area between the arc surface and the rubber ring, thereby avoiding sharp corners from cutting the rubber ring and making the pressure distribution more uniform, preventing excessive local stress from causing deformation of the rubber ring.

[0028] Specifically, such as Figure 2 and Figure 3As shown, the telescopic assembly 1 includes a telescopic member 11 and a connecting plate 12 connected to the telescopic member 11; the connecting plate 12 extends towards the center of the positioning groove 21 and is provided with an opening slot 121; one end of the L-shaped hook 3 away from the positioning groove 21 passes through the opening slot 121 and is connected to the connecting plate 12 through the connecting assembly 6. The connecting plate 12 extends towards the center of the positioning groove 21 and is provided with a first row of mounting holes and a second row of mounting holes; the first row of mounting holes and the second row of mounting holes are located opposite each other at the two ends of the opening slot 121; the connecting assembly 6 includes a mounting block 61; the two ends of the mounting block 61 are respectively provided with a first mounting hole corresponding to the first row of mounting holes and a second mounting hole corresponding to the second row of mounting holes; the mounting block 61 presses against the top of the end of the L-shaped hook 3 that passes through the opening slot 121. The connecting assembly 6 also includes a strip connecting block 62 and a pressing bolt 63; one end of the strip connecting block 62 is connected to the mounting block 61; the pressing bolt 63 passes through the end of the strip connecting block 62 away from the mounting block 61 and enters the cavity of the opening slot 121; the pressing bolt 63 enters the cavity of the opening slot 121 and abuts against the end of the L-shaped hook 3 away from the positioning groove 21.

[0029] In this embodiment, by adjusting the length of the L-shaped hook 3 extending into the opening slot 121, the final radial position of each L-shaped hook 3 is finely adjusted to accommodate hoses or rings of different diameters, ensuring the versatility and assembly accuracy of the device. The mounting block 61 is fixed to the first and second rows of mounting holes by bolts, pressing down on the L-shaped hook 3 from above to prevent it from coming off upwards. The pressure bolt 63 is screwed in from the side, its end directly pressing against the side of the L-shaped hook 3. By tightening the pressure bolt 63, the L-shaped hook 3 can be firmly locked from the side, preventing any movement during operation and ensuring the rigidity of the power transmission from the telescopic assembly 1 to the L-shaped hook 3 and the certainty of its final position.

[0030] In this embodiment, the telescopic component 11 is a telescopic cylinder. Furthermore, the rubber ring is extended and retracted by multiple telescopic cylinders that extend and retract synchronously.

Claims

1. An assembly device for an outer rubber ring of a rubber hose, comprising multiple telescopic components (1), characterized in that: It also includes a mounting plate (2); the mounting plate (2) has a positioning groove (21) recessed in the middle; a plurality of telescopic components (1) are symmetrically arranged outside the positioning groove (21); the telescopic components (1) extend towards the center of the positioning groove (21) and are provided with an L-shaped hook (3); the side of the L-shaped hook (3) away from the positioning groove (21) is provided with a limiting component (5).

2. The assembly device for the outer rubber ring of the hose according to claim 1, characterized in that: The limiting component (5) includes a square connecting block (51); the end of the L-shaped hook (3) near the positioning groove (21) is a hook part (31); the hook part (31) extends along the axial direction of the positioning groove (21); the hook part (31) is located in the middle of the square connecting block (51); the square connecting block (51) is located at the end of the hook part (31) near the positioning groove (21).

3. The assembly device for the outer rubber ring of the hose according to claim 2, characterized in that: The limiting component (5) also includes a plurality of protruding rings (52); the plurality of protruding rings (52) are spaced apart on one side of the hook portion (31) away from the square connecting block (51).

4. The assembly device for the outer rubber ring of the hose according to claim 3, characterized in that: The inner radial direction of the plurality of protruding rings (52) toward the hook portion (31) near the mounting plate (2) gradually decreases.

5. The assembly device for the outer rubber ring of the hose according to claim 3, characterized in that: The outer side wall of the protruding ring (52) away from the hook part (31) is an arc-shaped side wall.

6. The assembly device for the outer rubber ring of the hose according to claim 2, characterized in that: Both sides of the square connecting block (51) are arc-shaped sidewalls.

7. The assembly device for the outer rubber ring of the hose according to any one of claims 1 to 6, characterized in that: The telescopic assembly (1) includes a telescopic member (11) and a connecting plate (12) connected to the telescopic member (11); the connecting plate (12) extends toward the center of the positioning groove (21) and is provided with an opening slot (121); the L-shaped hook (3) has one end away from the positioning groove (21) inserted into the opening slot (121) and connected to the connecting plate (12) through a connecting assembly (6).

8. The assembly device for the outer rubber ring of the hose according to claim 7, characterized in that: The connecting plate (12) extends toward the center of the positioning groove (21) and is provided with a first row of mounting holes and a second row of mounting holes; the first row of mounting holes and the second row of mounting holes are provided opposite to each other at both ends of the opening slot (121); the connecting component (6) includes a mounting block (61); the two ends of the mounting block (61) are respectively provided with a first mounting hole corresponding to the first row of mounting holes and a second mounting hole corresponding to the second row of mounting holes; the mounting block (61) presses against the top of one end of the L-shaped hook (3) that penetrates into the opening slot (121).

9. The assembly device for the outer rubber ring of the hose according to claim 8, characterized in that: The connecting assembly (6) further includes a strip connecting block (62) and a pressing bolt (63); one end of the strip connecting block (62) is connected to the mounting block (61); the pressing bolt (63) passes through the end of the strip connecting block (62) away from the mounting block (61) and enters the cavity of the opening slot (121); the pressing bolt (63) enters the cavity of the opening slot (121) and abuts against the end of the L-shaped hook (3) away from the positioning groove (21).

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