Steel belt pipe sealing connection device

Abstract

The utility model relates to the field of pipeline connection, in particular to a steel belt pipe sealing and connecting device which comprises two semicircular hoop bodies, one ends of the two hoop bodies are hinged, the other ends of the two hoop bodies are provided with connecting assemblies, the hoop bodies are plastic hoop bodies, and each hoop body comprises a crest rib and crest clamping ribs integrally formed on the two sides of the crest rib. The wave crest clamping ribs on the two sides are obliquely arranged in the opposite directions, the distance between the free ends of the wave crest clamping ribs in the free state is smaller than the width of the wave crest, and a sealing gasket is arranged on the inner wall of the hoop body. According to the utility model, the problem that the connection effect is not ideal due to the fact that locking force is only provided in the radial direction in the prior art can be solved.

Description

Technical Field

[0001] This utility model relates to the field of pipe connection, specifically to a steel strip pipe sealing connection device. Background Technology

[0002] Steel-reinforced pipe is a pipe structure made of high-strength steel strips through spiral winding or folding, followed by welding or other fixing methods. Due to its excellent mechanical properties and corrosion resistance, steel-reinforced pipe is widely used in municipal drainage, agricultural irrigation, and industrial transportation. Steel-reinforced pipes are typically designed as single-wall corrugated pipes or multi-layer composite structures to adapt to different application requirements and environmental conditions. Its corrugated design not only enhances the rigidity and pressure resistance of the pipe body but also effectively reduces material usage and lowers manufacturing costs.

[0003] In practical engineering applications, steel strip pipes need to be connected to form a continuous piping system. A good connection is crucial for ensuring the sealing, stability, and service life of the piping system. Especially when transporting liquids or gases over long distances, reliable connections can prevent leaks, reduce maintenance frequency, and improve the overall system's safety and reliability. A common method for connecting steel strip pipes is to align the crests of two steel strip pipes and tighten the aligned crests with a pipe clamp to complete the connection. For example, the HFFB single-wall corrugated pipe clamp disclosed in the prior art (Publication No.: CN203770922U; Application Date: 2014-03-28) enables quick connection of corrugated pipes. However, the existing technology still has the following problems:

[0004] 1. Existing pipe clamps only provide locking force in the radial direction, without fully considering the axial tension force. This leads to unsatisfactory connection between pipe fittings in certain application scenarios, especially under large axial stress, which can easily cause loosening or separation, affecting the stability and safety of the entire pipeline system.

[0005] 2. In existing technologies, although a sealing ring is installed between the ribs on the inner wall of the pipe clamp and the side wall, no seal is provided in the middle of the pipe clamp, i.e., at the joint of the two pipe fittings. This means that the critical joint area lacks effective sealing measures, which may lead to liquid or gas leakage at this point, reducing the overall sealing effect of the pipe fitting connection. This defect is particularly evident in high-pressure or high-flow-rate applications, potentially causing serious safety hazards and economic losses. Utility Model Content

[0006] The present invention aims to provide a steel strip tube sealing connection device to solve the problem that the existing technology only provides locking force in the radial direction, resulting in unsatisfactory connection effect.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A steel strip tube sealing connection device includes two semi-circular hoops, one end of which is hinged, and the other end of which is provided with a connecting component. The hoops are plastic and include corrugated ribs and corrugated clamping ribs integrally formed on both sides of the corrugated ribs. The corrugated clamping ribs on both sides are inclined in opposite directions. In the free state, the distance between the free ends of the corrugated clamping ribs is less than the width of the corrugation. A sealing gasket is provided on the inner wall of the hoop.

[0009] Preferably, as an improvement, the thickness of the sealing gasket on the crest clamping rib gradually decreases from the free end to the crest rib.

[0010] Preferably, as an improvement, the sealing gasket is connected to the hoop at both ends and on both sides of the hinge joint of the two hoops.

[0011] Preferably, as an improvement, the connecting component includes two sets of buckles and latches, with a buckle and a latch fixed at the free end of each of the two clamps, and the buckle on one clamp and the latch on the other clamp are arranged opposite to each other and cooperate with each other.

[0012] Preferably, as an improvement, the free end of the crest clamping rib is connected to the trough rib, one trough rib has a buckle on its free end, and the other trough rib has a latch on its free end.

[0013] Preferably, as an improvement, the trough ribs and crest ribs are integrally formed.

[0014] Preferably, as an improvement, the hoop, the corrugated bar, and the sealing gasket are a hoop unit, which includes multiple hoop units, and the corrugated bars of two adjacent hoop units are connected.

[0015] The principles and beneficial effects of this solution are as follows:

[0016] 1. This design incorporates integrally formed, inwardly inclined corrugated clamping ribs on both sides of the corrugated rib. Initially, the distance between the free ends of the two clamping ribs is less than the width of the corrugation. When the clamping body is placed on the corrugation, the clamping ribs on both sides are separated. Due to the plasticity of the clamping ribs, their restoring action clamps the corrugations of the two pipes axially. Therefore, in addition to radially tightening the two clamping bodies through the connecting components, the corrugations of the two pipes are further clamped axially, effectively improving the pipe connection sealing and resulting in a good connection effect.

[0017] 2. Sealing gaskets are installed on the entire inner wall of the hoop, compared to existing technologies that only install sealing gaskets on the outer side of the hoop. This provides a better seal at the connection of the crests, resulting in a superior sealing effect. The sealing gaskets are only connected to the hoop at both ends and on both sides of the hinge between the two hoops, allowing sufficient room for the sealing gaskets to move and preventing them from being pulled and affecting the opening of the two hoops.

[0018] 3. The thickness of the sealing gasket on the corrugated clamping rib gradually decreases from the free end to the corrugated rib, that is, the thickness of the sealing gasket at the free end of the corrugated clamping rib is the smallest, which makes it convenient to clamp the hoop on the corrugated crest.

[0019] 4. This solution uses two sets of buckles and latches, and the two sets of buckles and latches are set in opposite directions on the two hoops. That is, each hoop is equipped with one buckle and one latch. Compared with the two latches being set on the same hoop and locking onto the buckle from the same direction, this solution can lock the two hoops from two opposite directions, resulting in a better locking effect.

[0020] 5. Building upon the above, this solution integrates corrugated ribs at the free end of the crest clamping rib, increasing the clamping area and further improving the pipe connection effect. Furthermore, snaps and latches are also provided on the corrugated ribs for enhanced locking, increasing the number of locking points and further improving the pipe connection effect.

[0021] 6. The trough ribs and crest ribs are integrally molded, which facilitates processing and ensures strength.

[0022] 7. Multiple clamping units are arranged in parallel, which can clamp multiple crests at the same time, further increasing the clamping area and thus further improving the connection effect of the pipeline. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of this utility model.

[0024] Figure 2 This is a partial cross-sectional view of Embodiment 1 of the present utility model.

[0025] Figure 3 This is a partial cross-sectional view of Embodiment 2 of the present invention. Detailed Implementation

[0026] The following detailed description illustrates the specific implementation method:

[0027] The reference numerals in the accompanying drawings include: hoop 1, crest rib 11, crest clamping rib 12, connecting component 2, buckle 21, latch 22, sealing gasket 3, trough rib 4, trough 51, and crest 52.

[0028] Example 1:

[0029] like Figure 1 and Figure 2As shown, a steel strip tube sealing connection device includes two semi-circular plastic clamps 1. One end of the two clamps 1 is hinged, and the other end of the two clamps 1 is detachably connected by a connecting component 2. Specifically, the connecting component 2 includes a plastic buckle 21 and a plastic latch 22. The buckle 21 and latch 22 are integrally formed on the free ends of the two clamps 1. The latch 22 has teeth formed on its outer wall. In the free state, the height of the free end of the latch 22 is higher than the height of the buckle 21. By using the plasticity of the latch 22, the free end of the latch 22 can be pressed down to pass through the buckle 21. After the latch 22 passes through the buckle 21, it uses its plasticity to lift up and reset itself, thereby locking itself onto the buckle 21 through the teeth, thus completing the locking of the clamps 1.

[0030] The hoop 1 includes a corrugated rib 11 and corrugated clamping ribs 12 integrally formed on both sides of the corrugated rib 11. The corrugated clamping ribs 12 on both sides are inclined in opposite directions, that is, the two corrugated clamping ribs 12 are interlocked. In the free state, the distance between the free ends of the corrugated clamping ribs 12 is less than the width of the corrugation 52. A sealing gasket 3 is fixed on the inner wall of the hoop 1. The thickness of the sealing gasket 3 on the corrugated clamping rib 12 gradually decreases from the free end to the corrugated rib 11. The sealing gasket 3 is glued to the hoop 1 at both ends and on both sides of the hinge of the two hoop 1s, and is not connected at other parts.

[0031] In practical application, after aligning the crests 52 of the two pipes, clamp 1 is clamped onto the aligned crests 52. After clamp 1 is clamped onto the aligned crests 52, the latch 22 is inserted into the buckle 21 and tightened, thus fixing clamp 1 onto the pipe and completing the pipe connection. Since the initial distance between the free ends of the two crest clamping ribs 12 is less than the width of the crest 52, the free ends of the two crest clamping ribs 12 need to be separated before clamping onto the crest 52. After clamping, the two crest clamping ribs 12 shrink inward and reset due to their own plasticity, thereby clamping the crests 52 of the two pipes, making the connection between the two pipes tighter. At the same time, the axial clamping effect of the two crest clamping ribs 12 can also avoid the problem of crest 52 misalignment when locking the two clamps 1 to a certain extent, making it easier to lock the two clamps 1. After clamp 1 is locked, the sealing gasket 3 on its inner wall presses against the surface of the entire crest 52, ensuring a sealed pipe connection. Compared to the method of locking the clamp 1 with bolts, the corrugated pipe is connected using this solution, which eliminates the need for multiple accessories and is easier to operate.

[0032] Example 2:

[0033] Combination Figure 3 As shown, the difference between this embodiment and embodiment 1 is that the free end of the crest clamping rib 12 is integrally formed with a trough rib 4, a buckle 21 is integrally formed on the free end of one trough rib 4, and a latch 22 is integrally formed on the free end of the other trough rib 4.

[0034] When the clamp 1 is clamped onto the crest 52, the trough rib 4 is clamped into the trough 51. The trough rib 4 increases the clamping area, which can improve the connection effect of the pipe. In addition, the trough rib 4 is also connected by the latch 22 and the buckle 21, which increases the connection points, improves the locking effect, and further improves the connection effect of the pipe.

[0035] Example 3:

[0036] The difference between this embodiment and embodiment 2 is that the hoop 1, the corrugated rib 4 and the sealing gasket 3 are a hoop unit. This embodiment includes multiple hoop units, which are integrally formed. The corrugated ribs 4 of two adjacent hoop units are connected. Specifically, this embodiment has two hoop units.

[0037] Setting up multiple clamping units in parallel can further increase the contact area with the pipeline axially, thereby increasing the clamping area and further improving the clamping effect of the pipeline.

[0038] Example 4:

[0039] The difference between this embodiment and embodiment 1 is that the free ends of both hoop bodies 1 are integrally formed with a buckle 21 and a latch 22. The buckle 21 on one hoop body 1 and the latch 22 on the other hoop body 1 are arranged opposite to each other and cooperate with each other.

[0040] Two sets of buckles 21 and latches 22 are used, and the two sets of buckles 21 and latches 22 are set in opposite directions on the two hoop bodies 1. Compared with the two latches 22 being set on the same hoop body 1 and locking onto the buckles 21 from the same direction, this solution can lock the two hoop bodies 1 from two opposite directions, resulting in a better locking effect.

[0041] The above descriptions are merely embodiments of this utility model. Commonly known technical solutions and / or characteristics are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solution of this utility model. These modifications and improvements should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A steel strip pipe sealing connection device, comprising two semi-circular clamps, one end of the two clamps being hinged together, and the other end of the two clamps being provided with a connecting assembly, characterized in that: The hoop is a plastic hoop, which includes a crest rib and crest clamping ribs integrally formed on both sides of the crest rib. The crest clamping ribs on both sides are inclined in opposite directions. In the free state, the distance between the free ends of the crest clamping ribs is less than the width of the crest. A sealing gasket is provided on the inner wall of the hoop.

2. The steel strip tube sealing connection device according to claim 1, characterized in that: The thickness of the sealing gasket on the crest clamping rib gradually decreases from the free end to the crest rib.

3. The steel strip tube sealing connection device according to claim 2, characterized in that: The sealing gaskets are connected to the hoop at both ends and on both sides of the hinge joint between the two hoops.

4. The steel strip tube sealing connection device according to claim 3, characterized in that: The connecting assembly includes two sets of buckles and latches. Each of the free ends of the two clamps is fixed with a buckle and a latch. The buckle on one clamp and the latch on the other clamp are positioned opposite each other and cooperate with each other.

5. The steel strip tube sealing connection device according to claim 4, characterized in that: The free end of the crest clamping rib is connected to the trough rib. One trough rib has a buckle on its free end, and the other trough rib has a latch on its free end.

6. The steel strip tube sealing connection device according to claim 5, characterized in that: The trough reinforcement and the crest clamping reinforcement are integrally formed.

7. The steel strip tube sealing connection device according to claim 6, characterized in that: The hoop, the corrugated bar, and the sealing gasket constitute a hoop unit, which includes multiple hoop units, with the corrugated bars of two adjacent hoop units connected.

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