Flexible rubber joint
By adding a reinforcing ring and screw support structure at the neck of the rubber joint, the problem of tearing and falling off caused by water pressure expansion of the rubber joint is solved, achieving higher stability and leak-proof effect.
Patent Information
- Application Number
- CN202423290474.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2025-11-07
- Estimated Expiration
- 2034-12-31
AI Technical Summary
Existing flexible rubber joints are prone to tearing, cracking, and detachment at the neck of the ball when they expand under the pressure inside the pipe, leading to water leakage.
A first reinforcing ring and a second reinforcing ring are added to the neck of the rubber joint ball and connected to the flange by a screw to form a support structure, which enhances the stability of the neck and prevents tearing and detachment caused by excessive water pressure.
It effectively prevents neck breakage and cracking caused by excessive water pressure, avoids water leakage, and improves the stability and connection reliability of the rubber joint.
Smart Images
Figure CN223524694U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the field of pipeline rubber joint, concretely relates to a flexible rubber joint. BACKGROUND
[0002] The flexible rubber joint is also called shock-absorbing throat, soft joint, rubber soft joint, pipeline shock absorber, etc., and is simply called rubber joint here, and the rubber soft joint is composed of a fabric-reinforced rubber part, a flat-shaped movable joint, a metal flange or a threaded pipe flange, and is used for a joint for pipeline vibration isolation, noise reduction and displacement compensation, and is a pipeline joint with high elasticity, high air tightness, medium resistance and weather resistance, and is commonly used in civil building water supply and drainage engineering, fire-fighting pipeline network pump house unit pipeline receiving, sewage treatment pipeline connection, high-pressure gas and liquid chemical medium transportation, petroleum and ship, etc.
[0003] The existing rubber joint is composed of an inner rubber layer, a fabric reinforcement layer, an outer rubber layer and a steel wire and flange, and due to the elasticity of the rubber joint itself, when the pipe is expanded by the internal pressure, the sealing surface of the flange and the neck of the ball body are prone to tearing, cracking and other phenomena, and in severe cases, the rubber layer and the flange can be separated, causing water leakage. SUMMARY
[0004] The utility model discloses to solve the water leakage problem caused by the tearing, cracking and separation of the neck of the ball body of the flexible rubber joint due to the expansion of the pipe by the internal pressure, and provides a flexible rubber joint, which reinforces the neck of the ball body of the flexible rubber joint to prevent the water leakage problem caused by the separation of the neck due to the high water pressure.
[0005] In order to achieve the above-mentioned purpose, the technical scheme of the utility model is a flexible rubber joint, which comprises a flexible rubber joint body with a horizontal cross-section in the shape of a ring, the flexible rubber joint body comprises a first rubber layer, a cord layer and a second rubber layer, the upper outer side of the first rubber layer is sleeved with a first reinforcing ring, and the lower outer side of the first rubber layer is sleeved with a second reinforcing ring, the outer side of the first reinforcing ring and the second reinforcing ring is sleeved with the cord layer, the middle inner side of the cord layer is attached to the middle outer side of the first rubber layer, and the outer side of the cord layer is sleeved with the second rubber layer, and the first reinforcing ring and the second reinforcing ring play a reinforcing role.
[0006] The top and bottom of the first rubber layer, the cord layer and the second rubber layer are all provided with a folded edge outwardly, the top of the first reinforcing ring is provided with a folded edge outwardly, and the bottom of the second reinforcing ring is provided with a folded edge outwardly.
[0007] In a further scheme, the middle part of the rubber joint body is outwardly protruding, and the vertical cross-section of the protruding part is in the shape of an arc.
[0008] In a further aspect, the second rubber layer is provided with a first flange and a second flange, the first flange is above the bottom edge of the second rubber layer, and the second flange is below the top edge of the second rubber layer, a plurality of threaded rods are arranged between the first flange and the second flange, and a plurality of nuts are arranged on the threaded rods.
[0009] In a further aspect, a plurality of first through holes are arranged on the edges of the first rubber layer, the rubber layer and the second rubber layer, and a plurality of second through holes are arranged on the first flange and the second flange, the second through holes corresponding to the first through holes.
[0010] In a further aspect, the first flange is formed by two half-ring plates, and the second flange has the same structure as the first flange.
[0011] In a further aspect, a horizontal plate is arranged at the joint of the first flange and the second flange, and a third through hole is arranged on the horizontal plate.
[0012] In a further aspect, a plurality of limiting blocks are arranged on the outer ring sidewall of the first flange and the second flange, and a fourth through hole is arranged on the limiting block for the threaded rod to pass through.
[0013] In a further aspect, a plurality of nuts are arranged on the threaded rods, and the nuts are arranged on the top and bottom of the limiting block.
[0014] Through the above technical solutions, the beneficial effects of the present application are as follows:
[0015] 1. The first reinforcing ring and the second reinforcing ring are arranged on the upper part and the lower part of the first rubber layer, respectively, so as to reinforce the neck of the flexible rubber joint, prevent the neck from being broken and cracked due to high water pressure, and prevent the neck from being displaced and falling off the middle part.
[0016] 2. The threaded rods pass through the first flange and the second flange and are connected by the nuts to fix and limit the first flange and the second flange, thereby providing support for the flexible rubber joint body. BRIEF DESCRIPTION OF DRAWINGS
[0017] Figure 1 Structure diagram of a flexible rubber joint Figure 1 .
[0018] Figure 2 Structure diagram of a flexible rubber joint Figure 2 .
[0019] Figure 3 A structure diagram of the flexible rubber joint of the utility model Figure 3 .
[0020] Figure 4 A structure diagram of the flexible rubber joint of the utility model Figure 3 .
[0021] Figure 5 An enlarged structure diagram of A in the flexible rubber joint of the utility model Figure 4 .
[0022] The reference signs in the drawings are: 1-flexible rubber joint body, 11-first rubber layer, 12-first reinforcing ring, 122-second reinforcing ring, 13-cord layer, 14-second rubber layer, 15-first through hole, 2-first flange, 20-second flange, 201-second through hole, 21-cross plate, 211-third through hole, 22-screw rod, 23-nut, 24-limiting block. DETAILED DESCRIPTION
[0023] The utility model will be further described in combination with the drawings and specific embodiments:
[0024] As shown in Figures 1-5 , the embodiment provides a flexible rubber joint, which comprises a flexible rubber joint body 1 with a horizontal section in the shape of a ring, the flexible rubber joint body 1 comprises a first rubber layer 11, a cord layer 13 and a second rubber layer 14, the upper outer side of the first rubber layer 11 is sleeved with a first reinforcing ring 12, and the lower outer side is sleeved with a second reinforcing ring 122, the outer side of the first reinforcing ring 12 and the second reinforcing ring 122 is sleeved with the cord layer 13, and the middle inner side of the cord layer 13 is attached to the middle outer side of the first rubber layer 11, the outer side of the cord layer 13 is sleeved with the second rubber layer 14.
[0025] The top and bottom of the first rubber layer 11, the cord layer 13 and the second rubber layer 14 are all provided with a folded edge outward, the top of the first reinforcing ring 12 is provided with a folded edge outward, and the bottom of the second reinforcing ring 122 is provided with a folded edge outward. Specifically, the vertical section of the first reinforcing ring 12 and the second reinforcing ring 122 after folding is in the shape of an inverted L, and the width of the folded edge of the first rubber layer 11, the cord layer 13 and the second rubber layer 14 is greater than the width of the folded edge of the first reinforcing ring 12 and the second reinforcing ring 122, and they are wrapped inside.
[0026] The middle part of the rubber joint body 1 is outwardly convex, and the vertical section of the convex part is in the shape of an arc.
[0027] The second glue layer 14 is sleeved with a first flange 2 and a second flange 20, the first flange 2 is located above the bottom folding edge of the second glue layer 14, the second flange 20 is located below the top folding edge of the second glue layer 14, a plurality of screw rods 22 are arranged between the first flange 2 and the second flange 20, and a plurality of nuts 23 are connected to the screw rods 22;
[0028] A plurality of limiting blocks 24 are arranged on the outer ring side walls of the first flange 2 and the second flange 20, fourth through holes are formed in the limiting blocks 24 and used for penetrating the screw rods 22; specifically, the plurality of limiting blocks 24 are arranged in a ring shape on the outer ring side walls of the first flange 2 and the second flange 20 and are fixed by welding.
[0029] A plurality of nuts 23 are sleeved on the screw rods 22, and the nuts 23 are located at the top and bottom of the limiting blocks 24; specifically, the screw rods 22 penetrate the limiting blocks 24 on the first flange 2 and the second flange 20, and the limiting blocks 24 are clamped by the nuts 23, thereby limiting the first flange 2 and the second flange 20.
[0030] A plurality of first through holes 15 are formed in the folding edges of the first glue layer 11, the cord layer 13 and the second glue layer 14 and penetrate the folding edges of the first glue layer 11, the cord layer 13 and the second glue layer 14, a plurality of second through holes 201 are formed in the first flange 2 and the second flange 20, and the second through holes 201 correspond to the first through holes 15;
[0031] The first flange 2 is formed by combining two half-ring plates, and the second flange 20 is the same in structure as the first flange 2;
[0032] The first flange 2 and the second flange 20 are provided with horizontal plates 21 at the combined positions, third through holes 211 are formed in the horizontal plates 21, the horizontal plates 21 are fixed to the combined positions of the first flange 2 and the second flange 20 and are connected by bolts, and the first flange 2 and the second flange 20 are convenient to install and disassemble; when the flexible rubber joint body 1 is connected with a pipeline, the first through holes 15, the second through holes 201 and the third through holes 211 are penetrated by bolts, and the pipeline to be connected is connected.
[0033] The specific working mode of the utility model is as follows:
[0034] The manufacturing and installation process of the flexible rubber joint body 1 is as follows:
[0035] Firstly, the first glue layer 11 is wound on a mold, then a first reinforcing ring 12 is sleeved on the upper neck of the first glue layer 11, a second reinforcing ring 122 is sleeved on the lower neck of the first glue layer 11, the upper part and the lower part of the first glue layer 11 are folded outward, and the folding edges are attached to the horizontal parts of the first reinforcing ring 12 and the second reinforcing ring 122;
[0036] The second step is to wrap the second rubber layer 14 outside the cord layer 13, and the upper and lower parts of the second rubber layer 14 are also folded outward, and the second rubber layer 14 is attached to the middle part and the folded edge of the cord layer 13;
[0037] The third step is to wrap the second rubber layer 14 outside the cord layer 13, and the upper and lower parts of the second rubber layer 14 are also folded outward, and the second rubber layer 14 is attached to the middle part and the folded edge of the cord layer 13;
[0038] The fourth step is to vulcanize the first rubber layer 11, the cord layer 13 and the second rubber layer 14, so that the first rubber layer 11, the cord layer 13 and the second rubber layer 14 are vulcanized into one whole, and the positions of the first reinforcing ring 12 and the second reinforcing ring 122 inside are more stable;
[0039] The fifth step is to open a through hole for the bolt at the folded edge of the first rubber layer 11, the cord layer 13 and the second rubber layer 14;
[0040] The sixth step is to wrap the first flange 2 and the second flange 20 around the upper and lower necks of the bendable rubber joint body 1, and to fix and connect the horizontal plate 21, the first flange 2 and the second flange 20 through the bolt at the splicing position, and then to insert the screw rod into the limiting block 24 to provide limiting and supporting for the first flange 2 and the second flange 20, thereby increasing the stability;
[0041] The seventh step is to connect the pipeline to be connected through the bolt penetrating the first through hole 15, the second through hole 201 and the third through hole 211.
[0042] The first reinforcing ring 12 and the second reinforcing ring 122 are added to the top and bottom necks of the bendable rubber joint body 1 to prevent the necks from being torn, cracked and falling off due to the expansion of the pressure in the pipeline, thereby preventing water leakage and playing a protective and reinforcing role on the necks of the bendable rubber joint ball.
[0043] The above-described embodiments are only preferred embodiments of the present application, and do not limit the scope of the application. Any equivalent changes or modifications made in accordance with the structure, features and principles described in the patent range of the present application shall be included in the patent range of the present application.
Claims
1. A flexible rubber joint comprising a flexible rubber joint body (1) having a horizontal cross-section in the shape of a ring, characterized in that, The winding rubber joint body (1) comprises a first rubber layer (11), a cord layer (13) and a second rubber layer (14), the upper outer side of the first rubber layer (11) is sleeved with a first reinforcing ring (12), the lower outer side is sleeved with a second reinforcing ring (122), the outer side of the first reinforcing ring (12) and the second reinforcing ring (122) is sleeved with the cord layer (13), the middle inner side of the cord layer (13) is attached to the middle outer side of the first rubber layer (11), the outer side of the cord layer (13) is sleeved with the second rubber layer (14). The top and bottom of the first rubber layer (11), the cord layer (13) and the second rubber layer (14) are provided with a folded edge outwardly, the top of the first reinforcing ring (12) is provided with a folded edge outwardly, and the bottom of the second reinforcing ring (122) is provided with a folded edge outwardly.
2. A flexible rubber joint according to claim 1, wherein The middle part of the rubber joint body (1) is outwardly protruding, and the vertical section of the protruding part is arc-shaped.
3. A flexible rubber joint as claimed in claim 1, wherein, The second rubber layer (14) is sleeved with a first flange (2) and a second flange (20), the first flange (2) is located above the bottom folded edge of the second rubber layer (14), the second flange (20) is located below the top folded edge of the second rubber layer (14), a plurality of screw rods (22) are arranged between the first flange (2) and the second flange (20), and a plurality of nuts (23) are connected to the screw rods (22).
4. A flexible rubber joint according to claim 3, wherein The folded edges of the first rubber layer (11), the cord layer (13) and the second rubber layer (14) are provided with a plurality of first through holes (15) penetrating the folded edges of the first rubber layer (11), the cord layer (13) and the second rubber layer (14), the first flange (2) and the second flange (20) are provided with a plurality of second through holes (201), and the second through holes (201) correspond to the first through holes (15).
5. A flexible rubber joint according to claim 4, wherein The first flange (2) is composed of two half-ring plates, and the second flange (20) and the first flange (2) are the same in structure.
6. A flexible rubber joint according to claim 5, wherein The first flange (2) and the second flange (20) are provided with a horizontal plate (21) at the jointing position, and the horizontal plate (21) is provided with a third through hole (211).
7. A flexible rubber joint according to claim 3 wherein, The outer ring side wall of the first flange (2) and the second flange (20) is provided with a plurality of limiting blocks (24), and the limiting blocks (24) are provided with fourth through holes for the screw rods (22) to penetrate.
8. A flexible rubber joint according to claim 7, wherein The screw rods (22) are sleeved with a plurality of nuts (23), and the nuts (23) are located at the top and bottom of the limiting blocks (24).