Concentric circle two-component rubber tube
By using a concentric two-component hose design, with concentric assembly of the inner and outer tubes and a limiting ring structure, the problem of unstable center of gravity in existing hoses is solved, improving stability in use and reducing material waste.
Patent Information
- Application Number
- CN202520831896.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-29
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-04-29
AI Technical Summary
Existing two-component hoses are inconvenient to use and waste materials due to their unstable center of gravity, especially when the hoses are swaying, which can easily cause errors.
The concentric two-component tubing design, through the concentric assembly of the inner and outer tubing, combined with the connecting components and limiting ring structure, ensures that the inner and outer tubing remain stable after being filled with different volumes of liquid. During use, the outer stopper ring and the inner stopper block are pushed simultaneously to achieve stable mixing.
It improves stability, reduces the probability of errors and material waste, and achieves user-friendly functionality.
Smart Images

Figure CN223895326U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of hose technology, and in particular to a concentric circle two-component hose. Background Technology
[0002] Two-component tubing refers to tubing formed by mixing two different substances together. The tubing contains an adhesive and a curing agent. The two substances are mixed during the ejection process, and the target is bonded through the adhesive effect of the mixed substances.
[0003] Existing two-component hoses have two tubes for storing adhesive and hardener, resulting in a large hose volume. At the same time, because the ratio of adhesive to hardener is not 1:1, the center of gravity of the hose is off-center, resulting in poor hose stability when workers hold and apply the adhesive. This can easily lead to errors due to hose shaking, resulting in inconvenience and material waste.
[0004] To address these issues, a concentric two-component tubing is proposed. Utility Model Content
[0005] The purpose of this invention is to solve the problem of unstable center of gravity in existing two-component hoses during use, and to propose a concentric two-component hose.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] A concentric bicomponent hose includes an outer tube and an inner tube. The outer wall of the output end of the outer tube is threaded, and a sealing cap is threadedly connected to the output end of the outer tube. An outer plug ring is provided at the other end of the outer tube. A connecting assembly is provided between the outer tube and the inner tube. The inner tube is concentrically assembled with the outer tube through the connecting assembly. A plug is provided at the output end of the inner tube, and an inner plug block is provided at the other end of the inner tube.
[0008] Preferably, the inner wall of the output end of the outer tube is provided with a slot, and the other end of the outer tube is fixedly connected with an outer limiting ring.
[0009] Preferably, the connecting assembly includes multiple connecting plates, which are arranged around the output end of the inner tube. One side of the connecting plate is fixedly connected to the inner tube, and a matching slot is fixedly connected to one side of the connecting plate. The slot engages with the matching slot.
[0010] Preferably, the gap between the connecting plates forms a through groove.
[0011] Preferably, the input end of the inner tube is inserted into the plug, and the other end of the inner tube is fixedly connected to a composite limiting ring.
[0012] Preferably, the inner plug block has a main socket fixedly connected to its center on the outer side, and the outer plug ring has multiple secondary sockets fixedly connected to its outer side.
[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0014] 1. Under the combined action of the inner tube, outer tube, and connecting components, this utility model enables the inner and outer tubes to maintain a stable center of gravity even after being filled with liquids of different volumes. This improves stability during use, reduces the probability of errors, achieves ease of use, and reduces the probability of material waste. Attached Figure Description
[0015] Figure 1 This is a three-dimensional structural diagram of a concentric circular two-component rubber tube proposed in this utility model;
[0016] Figure 2 This is a structural assembly diagram of a concentric circular two-component rubber tube proposed in this utility model;
[0017] Figure 3 This is a cross-sectional view of the structure of a concentric circular two-component rubber tube proposed in this utility model;
[0018] Figure 4 This is a cross-sectional view of the structure of a concentric circular two-component hose with an installed plug, as proposed in this utility model.
[0019] Figure 5 This is a structural assembly diagram of a connecting component in a concentric two-component hose proposed in this utility model;
[0020] Figure 6 This is a schematic diagram of the structure of the outer limiting ring and the composite limiting ring in a concentric circular two-component hose proposed in this utility model;
[0021] Figure 7 This is a structural assembly diagram of the outer plug ring and inner plug block in a concentric bicomponent rubber tube proposed in this utility model.
[0022] In the diagram: 1. Outer tube; 2. Inner tube; 3. Sealing cap; 4. Outer plug ring; 5. Plug; 6. Inner plug block; 7. Slot; 8. Outer limiting ring; 9. Connecting plate; 10. Clip; 11. Through slot; 12. Composite limiting ring; 13. Main socket; 14. Secondary socket. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.
[0024] Reference Figure 1-7 A concentric bicomponent hose includes an outer tube 1 and an inner tube 2. The outer wall of the output end of the outer tube 1 is threaded, and a sealing cap 3 is threadedly connected to the output end of the outer tube 1. An outer plug ring 4 is provided at the other end of the outer tube 1. A connecting assembly is provided between the outer tube 1 and the inner tube 2. The inner tube 2 is concentrically assembled with the outer tube 1 through the connecting assembly. A plug 5 is provided at the output end of the inner tube 2, and an inner plug block 6 is provided at the other end of the inner tube 2.
[0025] Furthermore, the inner wall of the output end of the outer tube 1 is provided with a slot 7 for connecting the inner tube 2, and the other end of the outer tube 1 is fixedly connected with an outer limiting ring 8 for blocking the outer plug ring 4.
[0026] Furthermore, the connecting assembly includes multiple connecting plates 9, which are arranged around the output end of the inner tube 2. One side of the connecting plate 9 is fixedly connected to the inner tube 2, and a clamping head 10 with a matching slot 7 is fixedly connected to one side of the connecting plate 9. The clamping head 10 engages with the slot 7, so that the inner tube 2 and the outer tube 1 are concentrically assembled. The gap between the connecting plates 9 forms a through groove 11, allowing the liquid inside the outer tube 1 to flow out from the through groove 11.
[0027] The further advantage of adopting the above is that, through the concentric assembly of the inner tube 2 and the outer tube 1, the inner tube 2 and the outer tube 1 can still maintain the stability of the center of gravity after being filled with liquids of different volumes, which improves the stability during use, reduces the probability of error, realizes the function of easy use, and at the same time reduces the probability of material waste.
[0028] Furthermore, the input end of the inner tube 2 is inserted into the plug 5. When the outer tube 1 is being filled, the inner tube 2 is sealed by the plug 5 to prevent liquid from entering the inner tube 2. The other end of the inner tube 2 is fixedly connected to a composite limiting ring 12.
[0029] A further advantage of the above is that, through the combined action of the composite limiting ring 12 and the outer limiting ring 8, the outer plug ring 4 and the inner plug block 6 can be blocked, preventing the outer plug ring 4 and the inner plug block 6 from leaving the outer tube body 1 and the inner tube body 2, thereby achieving a sealing effect through the outer plug ring 4 and the inner plug block 6.
[0030] Furthermore, the inner plug 6 is fixedly connected to the center of the side facing outward with a main socket 13, and the outer plug ring 4 is fixedly connected to the side facing outward with multiple secondary sockets 14.
[0031] It should be noted that the inner plug 6 is larger than the diameter of the inner tube 2, and the outer plug ring 4 is larger than the gap between the inner tube 2 and the outer tube 1, so that the inner plug 6 and the outer plug ring 4 can seal the inner tube 2 and the outer tube 1 through interference fit and push liquid. The main port 13 and the secondary port 14 are connected to the push rod of the glue gun in the prior art.
[0032] When filling, the present invention first injects a first type of liquid into the inner tube 2. After the filling is completed, the plug 5 is inserted into the output end of the inner tube 2 and the second type of liquid is injected into the outer tube 1. The plug 5 prevents the second type of liquid from entering the inner tube 2. After the filling is completed, the plug 5 is removed and the mixing nozzle in the prior art is connected through the thread of the output end of the outer tube 1.
[0033] Before use, the outer tube 1 and inner tube 2 are installed into the existing glue gun. During use, the outer plug ring 4 and inner plug block 6 are pushed synchronously by the glue gun. The outer plug ring 4 pushes out the liquid in the outer tube 1, and the inner plug block 6 pushes out the liquid in the inner tube 2. Because the inner tube 2 and the outer tube 1 are concentrically assembled, the inner tube 2 and the outer tube 1 can still maintain the stability of the center of gravity after being filled with different volumes of liquid, which improves the stability during use, reduces the probability of error, realizes the function of easy use, and at the same time reduces the probability of material waste.
[0034] When storing, the sealing cap 3 is threadedly connected to the outer plug ring 4. The sealing cap 3 seals the output ends of the outer tube body 1 and the inner tube body 2, and the inner plug block 6 and the outer plug ring 4 seal the inner tube body 2 and the outer tube body 1.
[0035] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A concentric bicomponent tubing, comprising an outer tubing (1) and an inner tubing (2), characterized in that, The outer wall of the output end of the outer tube (1) is threaded, and the output end of the outer tube (1) is threaded with a sealing cap (3). The other end of the outer tube (1) is provided with an outer plug ring (4). A connecting assembly is provided between the outer tube (1) and the inner tube (2). The inner tube (2) is concentrically assembled with the outer tube (1) through the connecting assembly. The output end of the inner tube (2) is provided with a plug (5). The other end of the inner tube (2) is provided with an inner plug block (6).
2. The concentric circular two-component tubing according to claim 1, characterized in that: The inner wall of the output end of the outer tube (1) is provided with a slot (7), and the other end of the outer tube (1) is fixedly connected with an outer limiting ring (8).
3. The concentric circular two-component tubing according to claim 2, characterized in that: The connecting assembly includes multiple connecting plates (9), which are arranged around the output end of the inner tube (2). One side of the connecting plate (9) is fixedly connected to the inner tube (2), and a card head (10) with a matching card slot (7) is fixedly connected to one side of the connecting plate (9). The card head (10) engages with the card slot (7).
4. The concentric circular two-component tubing according to claim 3, characterized in that: The gap between the connecting plates (9) forms a through groove (11).
5. The concentric circular two-component tubing according to claim 1, characterized in that: The input end of the inner tube (2) is inserted into the plug (5), and the other end of the inner tube (2) is fixedly connected to a composite limiting ring (12).
6. The concentric circular two-component tubing according to claim 1, characterized in that: The inner plug (6) is fixedly connected to the center of the outer side with a main socket (13), and the outer plug ring (4) is fixedly connected to a plurality of secondary sockets (14) on the outer side.