Anti-falling rubber sealing ring

By introducing a combination structure of engaging groove, limiting groove, toothed block, snap ring and steel cable into the rubber sealing ring, the problem of stable connection of the rubber sealing ring when connecting cast iron pipes is solved, and the effects of preventing detachment and convenient installation are achieved.

CN224397353UActive Publication Date: 2026-06-23JIANGSU YISHENG SEAL TECHNOLOGY CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGSU YISHENG SEAL TECHNOLOGY CO LTD
Filing Date
2025-04-22
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

Existing rubber sealing rings are prone to slippage when connecting cast iron pipes, making installation difficult and inconvenient. Furthermore, the traditional fixing method is not suitable for the connection requirements of cast iron pipes.

Method used

It adopts a combination structure of locking groove, limiting groove, toothed block, retaining spring and steel cable. The retaining spring is locked in the locking groove, and the limiting block and limiting groove are engaged to increase friction. The steel cable is used to pry the retaining spring to tighten it and achieve a stable installation.

Benefits of technology

This achieves a stable connection of the rubber sealing ring when connecting cast iron pipes, preventing detachment and improving installation convenience and sealing effect.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to the field of rubber sealing ring technology, specifically to an anti-detachment rubber sealing ring, comprising a rubber ring mechanism disposed inside a locking groove, the locking groove being opened inside a sleeve, the sleeve being fixedly installed at the front end of a cast iron pipe body, and a limiting block being fixedly installed inside the locking groove; the rubber ring mechanism includes a rubber sealing ring, which is fixedly installed inside the locking groove, a limiting groove being opened on the outer side of the rubber sealing ring, and a limiting block being fixedly installed inside the limiting groove; a toothed block being fixedly installed inside the rubber sealing ring, and a locking groove being opened on the inner side of the rubber sealing ring; a retaining spring being fixedly installed inside the locking groove, one end of the retaining spring having a notch, and a through hole having a through hole, and a steel cable being fixedly installed inside the through hole; this utility model makes the rubber sealing ring more stable by clamping the retaining spring with the locking groove, making the limiting block in the limiting groove more stable and preventing detachment, and by prying the steel cable, the notch is contracted, causing the retaining spring to tighten, thereby allowing the retaining spring to be removed from the locking groove.
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Description

Technical Field

[0001] This utility model relates to the field of rubber sealing ring technology, specifically a rubber sealing ring that prevents detachment. Background Technology

[0002] Rubber sealing rings are typically used when connecting cast iron pipes. These rings play a crucial role in water supply and drainage piping systems, ensuring the pipes' sealing and stability. The main types of rubber sealing rings include T-rings and EPDM rings, which are usually made of wear-resistant and aging-resistant synthetic rubber materials, such as ethylene propylene diene monomer (EPDM). These materials possess good elasticity, sealing properties, and chemical corrosion resistance, enabling them to adapt to various complex environmental conditions. Furthermore, due to the plasticity and recyclability of rubber materials, the production cost of these sealing rings is relatively low, which helps reduce the overall construction cost of the piping system.

[0003] For example, the anti-detachment rubber sealing ring disclosed in the patent announcement number CN221196425U belongs to the field of rubber sealing ring technology. This anti-detachment rubber sealing ring includes: an outer rubber fixing cover, a mating groove on one side of the outer wall of the outer rubber fixing cover, an embedding groove on one side of the inner wall of the outer rubber fixing cover, an inner rubber sealing ring fitted on the outer wall of the embedding groove, an insertion groove on the inner wall of the outer rubber fixing cover, an outer tube inserted inside the outer rubber fixing cover, a collar fitted on the outer wall of the outer tube, and multiple protrusions extending from the outer wall of the collar. The patent mentions that: the outer rubber fixing cover connects and seals the outer tube and the inner tube, the mating groove accommodates the outer tube, the inner rubber sealing ring improves the outer sealing effect, the collar is fixed to the outer wall of the outer tube by hot melt adhesive, and then the protrusions and extension strips are fixed by bolts, which improves the fixing effect of the outer rubber fixing cover, the sealing effect is better, and it is difficult to detach, thus improving the fixing effect.

[0004] However, the rubber sealing ring mentioned in the patent mainly relies on the connection and fixation of the external structure to ensure that the rubber sealing ring will not fall off. Therefore, it is not convenient to use it when connecting cast iron pipes. When existing rubber sealing rings are connected and installed with cast iron pipes, the rubber is relatively soft, which makes it easy for the rubber sealing ring to slip off from the installation point. Some rubber sealing rings with increased hardness of the installation point material are more difficult to install, resulting in inconvenience in use. Utility Model Content

[0005] The purpose of this invention is to provide a rubber sealing ring that prevents detachment, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A rubber sealing ring for preventing detachment includes a rubber ring mechanism, wherein the rubber ring mechanism is disposed inside a locking groove, the locking groove is opened inside a sleeve, the sleeve is fixedly installed at the front end of a cast iron pipe body, and a limit block is fixedly installed inside the locking groove.

[0008] The rubber ring mechanism includes a rubber sealing ring, which is fixedly installed in the engagement groove;

[0009] A limiting groove is provided on the outer side of the rubber sealing ring, and a limiting device is fixedly installed in the limiting groove;

[0010] A toothed block is fixedly installed inside the rubber sealing ring, and a groove is opened on the inner side of the rubber sealing ring;

[0011] A retaining spring is fixedly installed in the slot. One end of the retaining spring has a notch, and a through hole is formed at the notch. A steel cable is fixedly installed in the through hole.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This anti-detachment rubber sealing ring, by clamping the spring and the groove, makes the rubber sealing ring more stable at the limiting point, thereby making the limiting block more stable in the limiting groove, thus preventing the rubber sealing ring from falling off the sleeve.

[0014] 2. This type of anti-detachment rubber sealing ring can be pried open by the steel cable, causing the retaining spring to tighten and thus allowing it to be removed from the slot. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a cross-sectional structural diagram of the head sleeve of this utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the rubber sealing ring of this utility model;

[0018] Figure 4 This is a schematic diagram of the snap ring of this utility model.

[0019] In the diagram: 101, cast iron pipe body; 102, sleeve; 103, locking groove; 104, limiting block; 105, rubber ring mechanism; 106, rubber sealing ring; 201, limiting groove; 203, toothed block; 204, locking groove; 205, snap ring; 206, notch; 301, through hole; 302, steel cable. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figures 1-4 As shown, this utility model provides a technical solution:

[0022] A rubber sealing ring 106 that prevents detachment includes a rubber ring mechanism 105, which is located inside a locking groove 103. The locking groove 103 is located inside a sleeve 102. The sleeve 102 is fixedly installed at the front end of a cast iron pipe body 101. A limit block 104 is fixedly installed inside the locking groove 103.

[0023] The rubber ring mechanism 105 includes a rubber sealing ring 106, which is fixedly installed in the engagement groove 103.

[0024] A limiting groove 201 is provided on the outer side of the rubber sealing ring 106, and a limiting device is fixedly installed in the limiting groove 201.

[0025] A toothed block 203 is fixedly installed inside the rubber sealing ring 106, and a groove 204 is opened on the inner side of the rubber sealing ring 106.

[0026] A retaining spring 205 is fixedly installed in the slot 204. One end of the retaining spring 205 has a notch 206 and a through hole 301. A steel cable 302 is fixedly installed in the through hole 301.

[0027] The above scheme allows for the sealing of the cast iron pipe body using a rubber sealing ring, enabling water flow. The limiting groove ensures more stable installation of the rubber sealing ring. The sleeve allows for series connection of the cast iron pipe bodies, and the engaging groove facilitates the installation of the rubber sealing ring. The engaging groove and limiting block further enhance the stability of the rubber sealing ring installation. The toothed block increases friction, preventing the cast iron pipe body from detaching from the rubber sealing ring when connected to the sleeve. The snap ring engages in the slot, increasing the strength of the rubber sealing ring at the limiting point and ensuring the stability of the limiting block and slot. The notch allows the snap ring to retract, and the through hole allows for the engagement of the snap ring retraction tool and the installation of a steel cable. Prying the steel cable with a tool tightens the snap ring notch, facilitating its removal.

[0028] In this embodiment, when using an anti-detachment rubber sealing ring, if two different sets of cast iron pipe bodies 101 are connected to the sleeve, the user installs the rubber sealing ring 106 in the engagement groove 103 and makes the limiting block 104 engage with the limiting groove 201. Then, the user uses a tool to press the retaining spring 205 through the through hole 301 to retract it. The retracted retaining spring 205 is then locked into the groove 204 within the rubber sealing ring 106, and the tool is retracted to reset the retaining spring 205, thus securing the rubber sealing ring 106. Since the groove 204 and the limiting groove 201 are misaligned, the locking of the retaining spring 205 makes the limiting point of the rubber sealing ring 106 more stable, thereby ensuring the limiting block 104's position within the limiting groove 201. The position is more stable, thus preventing the rubber sealing ring 106 from falling off the sleeve. After the snap ring 205 is installed, the user applies lubricating oil to the rubber sealing ring 106 and the inside of the sleeve, and then connects the cast iron pipe body 101 to the sleeve. After the connection, the toothed blocks 203 inside the rubber sealing ring 106 increase the friction with the outside of the cast iron pipe body 101, thereby preventing the cast iron pipe body 101 from falling off the sleeve. The snap ring 205, together with the rubber sealing ring 106 and the sleeve, increases the firmness of the rubber sealing ring 106, so that the rubber sealing ring 106 can be prevented from falling off after the pipe is connected. Furthermore, by lifting the steel cable 302 and using a tool to pry through the steel cable 302, the notch 206 can be contracted, thereby allowing the snap ring 205 to be removed from the slot 204.

[0029] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A rubber sealing ring that prevents detachment, characterized in that: It includes a rubber ring mechanism (105), which is located inside the locking groove (103). The locking groove (103) is opened inside the sleeve (102). The sleeve (102) is fixedly installed at the front end of the cast iron pipe body (101). A limit block (104) is fixedly installed inside the locking groove (103). The rubber ring mechanism (105) includes a rubber sealing ring (106), which is fixedly installed in the engagement groove (103); A limiting groove (201) is provided on the outer side of the rubber sealing ring (106), and a limiting block (104) is fixedly installed in the limiting groove (201); A toothed block (203) is fixedly installed inside the rubber sealing ring (106), and a groove (204) is opened on the inner side of the rubber sealing ring (106); A retaining ring (205) is fixedly installed in the slot (204). A notch (206) is opened at one end of the retaining ring (205). A through hole (301) is opened at the notch (206). A steel cable (302) is fixedly installed in the through hole (301).