Anti-falling connecting structure and corrugated pipe with same

Abstract

The embodiment of the utility model discloses an anti-falling connecting structure and a corrugated pipe with the connecting structure, and relates to the technical field of pipeline connection, the anti-falling connecting structure comprises a connecting pipe body and an inserting strip, an inserting hole is formed in the pipe wall of the connecting pipe body, and the inserting strip is used for inserting the corrugated pipe to be connected into the connecting pipe body when the corrugated pipe to be connected is inserted into the connecting pipe body. And the connecting pipe is inserted into the connecting pipe body through the inserting hole from the outside of the connecting pipe body and is positioned in the wave trough of the pipe body, so that the connecting pipe body is connected with the corrugated pipe to be connected. The connecting pipe body is arranged to serve as a main body of the connecting structure, the inserting holes are formed in the pipe wall of the connecting pipe body, stable connection is achieved through inserting fit of the inserting strips and the inserting holes, the implementation difficulty is reduced, the connecting pipe body and the corrugated pipe are both tubular, the pipe wall of the corrugated pipe has the characteristic of continuously and regularly fluctuating, and therefore after the corrugated pipe is inserted into the connecting pipe body, the connecting pipe body is not prone to falling off. The wave troughs of the pipe body of the corrugated pipe form gaps, and the insertion strips can be inserted into the gaps from the outside through the insertion holes, so that stable connection of the connecting pipe body and the corrugated pipe can be realized.

Description

Technical Field

[0001] The present application relates to the technical field of pipeline connection, and in particular to an anti-falling connection structure and a corrugated pipe having the connection structure. Background Art

[0002] The corrugated pipe is a new type of commonly used pipe. It is widely used in municipal engineering, telecommunication engineering, construction engineering, etc. due to its high ring stiffness, smooth inner wall, corrosion resistance, light weight, and long life. In the process of being used in underground pipes such as rainwater pipes and sewage pipes in municipal and construction projects, the quality stability of the pipe itself is very good. However, the connection method of the corrugated pipe is generally based on the flexible socket method. This method has a disadvantage. Due to geological settlement, pipe bending impacted by water flow, full drainage or pressure drainage, the connection is prone to fall off and leakage. At present, the industry's solution is generally to increase the interference fit of the socket rubber ring to strengthen the connection strength and make it less likely to fall off. This method increases the difficulty of installation and construction, and the effect is general, and it cannot solve the problem of pipe falling off. Another way is to add anti-recession piers at the connection after the pipe is connected. This method is cumbersome and costly to construct, and the effect of dealing with geological settlement is not good. There is an urgent need for a corrugated pipe fitting with low implementation difficulty and stable connection. Utility Model Content

[0003] The main purpose of the present application is to provide an anti-drop connection structure and a bellows having the connection structure, aiming to solve the problem in the prior art of lacking a bellows with low implementation difficulty and stable connection.

[0004] To achieve the above purpose, the embodiment of the present application provides an anti-drop connection structure, including a connecting pipe body and an inserting strip, a plug hole is provided on the pipe wall of the connecting pipe body, and the cross-sectional size of the inserting strip matches the cross-sectional size of the trough of the pipe body of the corrugated pipe to be connected;

[0005] The inserting strip is used to be inserted from the outside of the connecting tube body into the inside of the connecting tube body through the inserting hole when the corrugated tube to be connected is inserted into the connecting tube body, and is located in the wave valley of the tube body, so as to connect the connecting tube body with the corrugated tube to be connected.

[0006] Optionally, the insertion hole is a bar-shaped hole, and the extension direction of the insertion hole is the circumference of the connecting tube body.

[0007] Optionally, an annular convex groove is provided on the outer wall of the connecting tube body, the insertion hole is opened on the annular convex groove, and the cross-sectional size of the insertion strip matches the cross-sectional size of the space between the wave trough of the tube body and the annular convex groove.

[0008] Optionally, the anti-fall-off connection structure also includes a sealing ring, which is arranged on the inner wall of the connecting tube body. The sealing ring is used to seal the space between the corrugated tube to be connected and the connecting tube body after the corrugated tube to be connected is connected to the connecting tube body. The sealing ring is located on the side of the socket close to the corrugated tube to be connected.

[0009] Optionally, an annular rubber ring groove is provided on the outer wall of the connecting tube body, and the rubber ring groove is used to accommodate the sealing ring.

[0010] Optionally, the sealing ring is at a target distance from the insertion hole so that after the corrugated tube to be connected is connected to the connecting tube body, the sealing ring is located in the trough of the tube body.

[0011] Optionally, two sockets are provided, the two sockets are respectively close to two ends of the connecting pipe body, and two inserting strips are provided, one inserting strip is used to cooperate with one socket.

[0012] In addition, to achieve the above-mentioned purpose, an embodiment of the present application further provides a bellows, including a bellows body, one end of which is connected to an anti-drop connection structure provided in an embodiment of the present application.

[0013] Optionally, the bellows includes at least two bellows bodies and at least one anti-falling connection structure, and every two bellows bodies are connected by an anti-falling connection structure.

[0014] Compared with the prior art, the beneficial effects of this application are:

[0015] The embodiments of the present application propose an anti-fall-off connection structure and a bellows having the connection structure. A connecting tube body is provided as the main body of the connection structure, a plug hole is opened on the tube wall, and a stable connection is achieved by plugging and fitting an insert strip with the plug hole, thereby reducing the difficulty of implementation. Since both the connecting tube body and the bellows are tubular, and the tube wall of the bellows has the characteristic of constantly and regularly undulating, after the bellows is inserted into the connecting tube body, a gap is formed in the wave trough of the tube body of the bellows, and the insert strip can be inserted into the gap from the outside through the plug hole, thereby achieving a stable connection between the connecting tube body and the bellows. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram of the structure of the anti-fall-off connection structure provided in an embodiment of the present application;

[0017] Figure 2 A schematic diagram of the structure of the anti-fall-off connection structure provided in an embodiment of the present application in another implementation manner;

[0018] Figure 3 A schematic diagram of the structure of the bellows provided in an embodiment of the present application;

[0019] Figure 4 For multiple Figure 3The structural schematic diagram of the bellows combined connection shown in FIG.

[0020] Figure 5 for Figure 4 A schematic diagram of the cross-sectional structure along the axial direction of the bellows;

[0021] Figure 6 for Figure 5 The local enlarged schematic diagram at Y in the middle, where L is the target distance;

[0022] Figure 7 for Figure 4 A schematic diagram of the cross-sectional structure along the radial direction of the bellows;

[0023] Figure 8 A schematic diagram of the structure of a bellows provided in an embodiment of the present application in one implementation manner;

[0024] Fig. 9 For multiple Figure 8 The structural schematic diagram of the bellows combined connection shown in FIG.

[0025] Fig.10 for Fig. 9 A schematic diagram of the cross-sectional structure along the axial direction of the bellows;

[0026] Fig.11 for Fig.10 A local enlarged schematic diagram of the Z position in the middle, where L is the target distance;

[0027] Fig.12 A schematic diagram of the structure of the bellows provided in an embodiment of the present application in another implementation manner;

[0028] Figure numerals: 1-insertion hole, 2-sealing ring, 3-insertion strip, 4-connecting tube body, 5-annular convex groove, 6-rubber ring groove, 7-corrugated tube, 8-annular groove. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0030] It should be noted that all directional indications in the embodiments of the present application (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0031] In this application, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0032] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present application, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in the field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0033] Refer to the attached Figure 1 -Attached Fig.12 The embodiment of the present application provides an anti-drop connection structure, including a connecting tube body 4 and an inserting strip 3, a plug hole 1 is provided on the tube wall of the connecting tube body 4, and the cross-sectional size of the inserting strip 3 matches the cross-sectional size of the wave trough of the tube body of the corrugated tube 7 to be connected; the inserting strip 3 is used to be inserted into the inside of the connecting tube body 4 from the plug hole 1 at the outside of the connecting tube body 4 when the corrugated tube 7 to be connected is inserted into the connecting tube body 4, and is located in the wave trough of the tube body, so that the connecting tube body 4 is connected to the corrugated tube 7 to be connected.

[0034] In this embodiment, a connecting tube body 4 is provided as the main body of the connecting structure, a plug hole 1 is provided on the tube wall thereof, and a stable connection is achieved by plugging and fitting the insert strip 3 with the plug hole 1, thereby reducing the difficulty of implementation. Since both the connecting tube body 4 and the corrugated tube 7 are tubular, and the tube wall of the corrugated tube 7 has the characteristic of constantly and regularly undulating, after the corrugated tube 7 is inserted into the connecting tube body, a gap is formed in the wave trough of the tube body of the corrugated tube 7, and the insert strip 3 can be inserted into the gap from the outside through the plug hole 1, thereby achieving a stable connection between the connecting tube body 4 and the corrugated tube 7.

[0035] In one embodiment, as shown in the attached Figure 1 , Attachment Figure 2As shown, the jack 1 is a strip hole, and the extension direction of the jack 1 is the circumferential direction of the connecting tube body 4. The strip hole expands the entrance during plugging, making plugging more convenient. The extension direction of the jack 1 is the circumferential direction of the connecting tube body 4, which can guide the insertion of the plug strip 3 and is conducive to plug-in connection.

[0036] In one embodiment, as shown in the attached Figure 2 As shown, the outer wall of the connecting tube body 4 is provided with an annular convex groove 5, and the insertion hole 1 is opened on the annular convex groove 5. The cross-sectional size of the insertion strip 3 matches the cross-sectional size of the space between the tube body trough and the annular convex groove 5. The stability of the plug-in connection is derived from the material properties on the one hand, and from the size of the insertion strip 3 on the other hand. In the aforementioned implementation, only the size of the tube body trough is used to match the size of the insertion strip 3. If the elastic deformation of the material of the insertion strip 3 is large, then the cross-sectional size of the insertion strip 3 can be slightly larger than the cross-sectional size of the tube body trough. In order to improve the stability of the plug-in connection, in this embodiment, an annular convex groove 5 is added to the tube wall to match the tube body trough to increase the cross-sectional size of the plug-in space to achieve a more stable plug-in. Furthermore, to avoid the influence of the position of the tube body trough, a device as shown in the attached figure can be provided at the other end of the bellows 7. Figure 8 The annular groove 8 shown can provide a stable space for reliable connection when different bellows 7 are connected through the cooperation of the annular convex groove 5 and the annular groove 8. As in the above embodiment, by setting the connection structure in a separate manner, the two parts of the matching connection are respectively located at the two ends of the pipe fitting, and through the cooperation of the annular convex groove 5 and the annular groove 8, it is no longer dependent on the undulating characteristics of the wall of the bellows itself for plugging, so that its application field is not limited to bellows, but also applicable to other non-bellows products.

[0037] In one embodiment, as shown in the attached Figure 4 , Attachment Figure 6 As shown, the anti-drop connection structure also includes a sealing ring 2, which is arranged on the inner wall of the connecting pipe body 4. The sealing ring 2 is used to seal the space between the bellows 7 to be connected and the connecting pipe body 4 after the bellows 7 to be connected are connected to the connecting pipe body 4. The sealing ring 2 is located on the side of the jack 1 close to the bellows 7 to be connected. The sealing ring 2 is used to achieve sealing at the connection to prevent loosening, water seepage, etc. The number of sealing rings 2 can be multiple, and they can be arranged at intervals along the axis of the pipe body.

[0038] In one embodiment, since the installation of the sealing ring 2 depends on the position of the wave trough of the pipe body, the installation of the sealing ring 2 is inconvenient and the construction is difficult. In order to solve the above problem, an annular rubber ring groove 6 is provided on the outer wall of the connecting pipe body 4. Figure 2 And attached Figure 8 -Attached Fig.11As shown, the rubber ring groove 6 is used to pre-set the sealing ring 2, and no on-site installation is required, which simplifies the installation process. The rubber ring groove 6 is used to stably provide the installation position of the sealing ring 2, and it is no longer necessary to adjust the sealing ring 2 to the trough position, thereby ensuring a good sealing effect. In actual use, it is necessary to ensure that the sealing ring 2 is located at the rear end of the socket 1, is completely sealed and has a safe distance, that is, as shown in the attached Figure 6 , Attachment Fig.11 The target distance indicated by L is usually not less than 1 cm. The sealing ring 2 and the insertion hole 1 are at the target distance so that after the corrugated tube 7 to be connected is connected to the connecting tube body 4, the sealing ring 2 is located in the trough of the tube body.

[0039] In one embodiment, as shown in the attached Fig.12 As shown, two sockets 1 are provided, and the two sockets 1 are respectively close to the two ends of the connecting pipe body 4, and two plug strips 3 are correspondingly provided, and one plug strip 3 is used to cooperate with one socket 1. In this way, after plug-in fitting components are provided at both ends of the connecting pipe body 4, a connecting structure can be used to connect the corrugated pipe 7 at both ends by plugging, and can be expanded to be used for the broken pipe 7 and emergency repair connection processing.

[0040] The length of the plug 3 is not specifically limited, as long as the length inserted into the interior is sufficient to maintain a stable connection. The longer the plug 3 is, the higher the safety factor is. In actual use, the structure after plugging is as shown in the attached figure. Figure 7 As shown, to disassemble the connected pipe fittings, it is only necessary to pull out the insert 3.

[0041] Based on the same inventive concept as the above-mentioned embodiment, the present application embodiment also provides a bellows, as shown in the attached Figure 3 -Attached Fig.12 As shown, it includes a bellows body, one end of which is connected to an anti-drop connection structure as provided in the embodiment of the present application. The bellows may include at least two bellows bodies and at least one anti-drop connection structure, and each two bellows bodies are connected by an anti-drop connection structure.

[0042] As in the above embodiment, various combinations of the bellows body can be realized through the anti-falling connection structure. For example, the anti-falling connection structure is fixedly connected to one end of the bellows body to form a bellows with a joint at one end. Then, the bellows with the above structure can be connected end to end through the anti-falling connection structure by using the insertion strip 3 to form the bellows as shown in the attached embodiment. Figure 4 , Attachment Fig. 9 The bellows of the combined form shown in the figure can also be connected to the bellows without joints by the anti-drop connection structure that can be freely connected at both ends, so as to form a combined connection as shown in the figure. Fig.12The bellows shown, of course, other combinations not mentioned in this application, as long as the bellows are combined using the anti-drop connection structure provided in this application, are all included in the embodiments of this application. The bellows combined with the anti-drop connection structure has good stability and is compatible with the use scenarios of pressure drainage and low-pressure water supply, further broadening the field of use.

[0043] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. An anti-falling connection structure, characterized in that: It includes a connecting pipe body and an inserting strip, wherein an inserting hole is provided on the pipe wall of the connecting pipe body, and the cross-sectional size of the inserting strip matches the cross-sectional size of the wave trough of the pipe body of the corrugated pipe to be connected; The inserting strip is used to be inserted into the connecting pipe body from the inserting hole outside the connecting pipe body when the corrugated pipe to be connected is inserted into the connecting pipe body, and is located in the wave valley of the pipe body, so that the connecting pipe body is connected to the corrugated pipe to be connected; The anti-fall-off connection structure also includes a sealing ring, which is arranged on the inner wall of the connecting pipe body. The sealing ring is used to seal the space between the corrugated pipe to be connected and the connecting pipe body after the corrugated pipe to be connected is connected to the connecting pipe body. The sealing ring is located on one side of the jack close to the corrugated pipe to be connected.

2. The anti-fall-off connection structure according to claim 1, characterized in that: The insertion hole is a bar-shaped hole, and the extension direction of the insertion hole is the circumferential direction of the connecting pipe body.

3. The anti-fall-off connection structure according to claim 1, characterized in that: An annular convex groove is arranged on the outer wall of the connecting pipe body, the insertion hole is opened on the annular convex groove, and the cross-sectional size of the insertion strip matches the cross-sectional size of the space between the wave trough of the pipe body and the annular convex groove.

4. The anti-fall-off connection structure according to claim 1, characterized in that: An annular rubber ring groove is arranged on the outer wall of the connecting pipe body, and the rubber ring groove is used to accommodate the sealing ring.

5. The anti-fall-off connection structure according to claim 1, characterized in that: The sealing ring is at a target distance from the insertion hole, so that after the corrugated pipe to be connected is connected to the connecting pipe body, the sealing ring is located in the wave valley of the pipe body.

6. The anti-fall-off connection structure according to claim 1, characterized in that: Two sockets are provided, and the two sockets are respectively close to two ends of the connecting pipe body. Two inserting strips are provided, and one inserting strip is used to cooperate with one socket.

7. A corrugated pipe, characterized in that: It comprises a bellows body, one end of which is connected to the anti-falling connection structure as described in any one of claims 1 to 6.

8. The corrugated tube according to claim 7, characterized in that The bellows comprises at least two bellows bodies and at least one anti-drop connection structure, and every two bellows bodies are connected via one anti-drop connection structure.

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