Corrugated pipe connecting assembly

Abstract

The utility model discloses a corrugated pipe connecting assembly, and relates to the technical field of corrugated pipes. The connecting structure comprises two main pipes, two auxiliary pipes and two reinforcing assemblies, wherein the auxiliary pipes are fixed at the ends, close to each other, of the two main pipes; a sealing ring is arranged on the inner wall of the main pipe, a corrugated pipe body is arranged in an inner cavity of the main pipe, the reinforcing assembly comprises four cambered plates distributed in an annular array, a sealing gasket is bonded to the outer cambered surface of each cambered plate, and a trapezoidal frame is fixed to the inner cambered surface of each cambered plate. The outer cambered surface of the sealing gasket contacts with the inner wall of the end of the corrugated pipe body, and the inner wall of the sealing ring contacts with the outer wall of the end of the corrugated pipe body. By arranging the reinforcing assembly, the main pipe, the auxiliary pipe, the first long-neck bolt and the first nut, the problems that when corrugated pipes are connected, an internal reinforcing function is lacked, no support exists in the corrugated pipes, and sealing performance is insufficient are solved; and the problem that when the two sections of the connecting assembly are matched for use, threaded connection between the two sections of the connecting assembly is possibly not tight enough is solved.

Description

Technical Field

[0001] The utility model belongs to the technical field related to bellows, and particularly relates to a bellows connecting assembly. Background Art

[0002] The types of corrugated pipes are roughly divided into: plastic corrugated pipes and metal corrugated pipes. Metal corrugated pipes are divided into galvanized and non-galvanized types. Conventional large corrugated pipes are mostly used for underground use, and most of them are double-walled corrugated pipes. Double-walled corrugated pipes are a new type of lightweight pipe made of high-density polyethylene. They have the characteristics of light weight, high pressure resistance, good toughness, fast construction, and long life. Their characteristics enable them to replace cement pipes, metal pipes, etc. However, for pipelines, their length is necessarily limited, and all pipelines must be connected, but there are still the following disadvantages in the actual connection operation:

[0003] 1. Conventional pipe connections are mostly connected by connecting components such as joints to make the two pipes pass through and seal and fix. However, this type of structure is not practical for bellows. Usually, the connection of bellows is to bond the outer walls of the ends of the two bellows into the same ring-shaped connecting component to achieve the connection. The connection effect of this method is extremely low and it is easy to cause the problem of insufficient sealing. There is no support inside, so it is easy to loosen after long-term use, and the fixing effect is insufficient;

[0004] 2. If one annular tubular connection assembly is used to connect two bellows, it is impossible to perform reinforcement and maintenance operations on the inside of the bellows. If two annular tubular connection assemblies are used to connect two bellows, the two annular tubular connection assemblies need to be connected to each other. Usually, they are locked by means of threads, etc. However, during long-term use, they may become loose due to factors such as vibration and need further reinforcement. Utility Model Content

[0005] The purpose of the utility model is to provide a bellows connection assembly, which solves the problems of lack of internal reinforcement function, lack of internal support and insufficient sealing when the bellows is connected by arranging a reinforcement assembly, a main pipe, a secondary pipe, a long neck bolt and a nut; and solves the problem that when the connection assembly is used in two sections, the threaded connection between the two sections may not be tight enough.

[0006] In order to solve the above technical problems, the utility model is achieved through the following technical solutions:

[0007] The utility model is a bellows connection assembly, comprising two main pipes, two auxiliary pipes and two reinforcement assemblies, wherein the adjacent ends of the two main pipes are fixed with auxiliary pipes, and the two auxiliary pipes are threadedly connected;

[0008] A sealing ring is arranged on the inner wall of the main pipe, a bellows body is arranged in the inner cavity of the main pipe, a reinforcement component is arranged in the inner cavity of the end of the bellows body, and the reinforcement component is also located in the inner cavity of the main pipe;

[0009] The reinforcement assembly includes four arc panels distributed in a circular array, and a sealing gasket is bonded to the outer arc surface of each arc panel, and a ladder frame is fixed to the inner arc surface of each arc panel; the outer arc surface of the sealing gasket contacts the inner wall of the end of the corrugated pipe body, and the inner wall of the sealing ring contacts the outer wall of the end of the corrugated pipe body.

[0010] Furthermore, the adjacent ends of the two auxiliary pipes are respectively fixed with thread heads and provided with corresponding thread grooves, and one auxiliary pipe is screwed into the thread groove in the other auxiliary pipe through the thread head to be threadedly connected and fixed.

[0011] Furthermore, the outer sides of the two auxiliary pipes are provided with arc grooves distributed in a circular array, and a long-necked bolt is inserted between the arc grooves on the same straight line of the two auxiliary pipes, and a nut is screwed on the end of the long-necked bolt to fix it.

[0012] Furthermore, the smooth end of the bellows body is located in the inner cavity of the main pipe, and the corrugated section of the bellows body is located outside the main pipe.

[0013] Furthermore, base blocks distributed in a circular array are fixed to the outer periphery of the main pipe, and the positions of the base blocks correspond to the positions of the reinforcement components. Two long-necked bolts are vertically inserted into the base blocks, and the ends of the two long-necked bolts pass through the base blocks, the main pipe, the sealing ring, the bellows body, the sealing gasket, the arc panel and the ladder frame in sequence and are screwed with two nuts.

[0014] Furthermore, the four arc panels are arranged in a ring array to form a circular ring structure, which is adapted to the inner diameter of the bellows body.

[0015] The utility model has the following beneficial effects:

[0016] 1. The utility model solves the problems of lack of internal reinforcement function, lack of internal support and insufficient sealing when the bellows are connected by arranging a reinforcement component, a main pipe and a secondary pipe; the ends of the two bellows main bodies are fixed in the two main pipes respectively, and then the two secondary pipes connected are fixed to complete the assembly connection; a main pipe and a secondary pipe close to it are an integrated structure, the end of the bellows main body is placed in the main pipe, the outer wall of the bellows main body is attached to the inner wall of the sealing ring, and then the arc panel in the reinforcement component is abutted against the inner wall of the end of the bellows main body, at this time, the sealing gasket is attached to the inner wall of the bellows main body, then, the long neck bolt 2 is inserted from the outside of the main pipe, and passes through the base block, the main pipe, the sealing ring, the bellows main body, the sealing gasket, the arc panel and the ladder frame in sequence, and finally the nut 2 is screwed and fixed and locked, so that all the arc blocks are installed in this way, and at this time the end of the bellows main body is located between the sealing ring and the sealing gasket in the main pipe and locked, the structural locking is completed, the internal support strength is high, it will not be easily loosened, the inside and outside are synchronously fixed, and the connection effect is good.

[0017] 2. The utility model solves the problem that when the connecting assembly is used in two sections, the threaded connection between the two sections may not be tight enough by providing a sub-tube, a long-necked bolt and a nut. The sub-tubes are first fixed by screwing the threaded opening and the threaded groove together, and finally the long-necked bolt is passed through the arc-shaped grooves on the two sub-tubes that are on the same straight line, and the nut is screwed on the end of the long-necked bolt to fix the thread. The heads of the nut and the long-necked bolt are respectively located in the two arc-shaped grooves, thereby achieving a double reinforcement effect, avoiding loosening, and maintaining the tightness of the connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for describing the embodiments are briefly introduced below.

[0019] Figure 1 is a stereoscopic diagram of a bellows connection assembly;

[0020] Figure 2 A disassembled diagram of a bellows connection assembly;

[0021] Figure 3 It is the connection diagram of the main pipe and the bellows body;

[0022] Figure 4 for Figure 3 A cross-sectional view of the structure;

[0023] Figure 5 This is a disassembled diagram of the reinforcement components.

[0024] Reference numerals:

[0025] 1. Main pipe; 101. Base block; 102. Sealing ring; 2. Auxiliary pipe; 201. Arc groove; 202. Long neck bolt 1; 203. Nut 1; 204. Threaded head; 205. Threaded groove; 3. Bellows body; 4. Reinforcement assembly; 401. Arc panel; 402. Ladder frame; 403. Sealing gasket; 404. Long neck bolt 2; 405. Nut 2. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0027] See also Figure 1-5 As shown, the utility model is a bellows connection assembly, comprising two main pipes 1, two auxiliary pipes 2 and two reinforcement assemblies 4, the adjacent ends of the two main pipes 1 are both fixed with auxiliary pipes 2, and the two auxiliary pipes 2 are threadedly connected;

[0028] The ends of the two bellows main bodies 3 are fixed in the two main pipes 1 respectively, and the two auxiliary pipes 2 are connected and fixed to complete the assembly connection. A main pipe 1 and the auxiliary pipe 2 adjacent to it are an integrated structure;

[0029] A sealing ring 102 is arranged on the inner wall of the main pipe 1, a bellows body 3 is arranged in the inner cavity of the main pipe 1, a reinforcement component 4 is arranged in the inner cavity of the end of the bellows body 3, and the reinforcement component 4 is also located in the inner cavity of the main pipe 1;

[0030] A sealing ring 102 is provided on the inner wall of the main pipe 1 to seal the outer wall of the bellows assembly to prevent the influence of the external environment; the reinforcement assembly 4 is used to reinforce the inner wall of the bellows body 3, and cooperate with the main pipe 1 to clamp and fix the end of the bellows body 3;

[0031] The reinforcement assembly 4 includes four arc panels 401 distributed in a circular array, and a sealing gasket 403 is bonded to the outer arc surface of each arc panel 401, and a ladder frame 402 is fixed to the inner arc surface of each arc panel 401; the outer arc surface of the sealing gasket 403 contacts the inner wall of the end of the bellows body 3, and the inner wall of the sealing ring 102 contacts the outer wall of the end of the bellows body 3;

[0032] The end of the bellows body 3 is placed in the main pipe 1, and the outer wall of the bellows body 3 fits the inner wall of the sealing ring 102. The arc panel 401 in the reinforcement component 4 is then abutted against the inner wall of the end of the bellows body 3. At this time, the sealing gasket 403 fits the inner wall of the bellows body 3 and cooperates with the sealing ring 102 to achieve a double sealing effect inside and outside, isolating the influence of external environmental pollution.

[0033] The adjacent ends of the two auxiliary pipes 2 are respectively fixed with a thread head 204 and a corresponding thread groove 205, and one auxiliary pipe 2 is screwed into the thread groove 205 in the other auxiliary pipe 2 through the thread head 204 to be threadedly connected and fixed;

[0034] When two auxiliary pipes 2 are connected, the thread head 204 at the end of one auxiliary pipe 2 is screwed into the thread groove 205 at the end of the other auxiliary pipe 2 to achieve preliminary connection and fixation.

[0035] The outer sides of the two auxiliary pipes 2 are provided with arc grooves 201 distributed in a circular array, and a long-neck bolt 202 is inserted between the arc grooves 201 on the same straight line of the two auxiliary pipes 2, and a nut 203 is screwed on the end of the long-neck bolt 202 to be fixed by thread;

[0036] After the two auxiliary pipes 2 are threadedly connected, the long-necked bolt 202 is passed through between the arc-shaped grooves 201 on the two auxiliary pipes 2 which are on the same straight line, and the nut 203 is screwed on the end of the long-necked bolt 202 to be threadedly fixed. The heads of the nut 203 and the long-necked bolt 202 are respectively located in the arc-shaped grooves 201 on the two auxiliary pipes 2, thereby achieving a double reinforcement effect and maintaining sufficient stability.

[0037] The smooth end of the bellows body 3 is located in the inner cavity of the main pipe 1 , and the corrugated section of the bellows body 3 is located outside the main pipe 1 ; the end of the bellows body 3 is locked and fixed by using the main pipe 1 and the reinforcement component 4 .

[0038] The outer periphery of the main pipe 1 is fixed with base blocks 101 distributed in a circular array, the position of the base block 101 corresponds to the position of the reinforcement component 4, and a second long-neck bolt 404 is vertically inserted through the base block 101. The end of the second long-neck bolt 404 passes through the base block 101, the main pipe 1, the sealing ring 102, the bellows body 3, the sealing gasket 403, the arc panel 401 and the ladder frame 402 in sequence and is screwed with a second nut 405;

[0039] The setting of the base block 101 facilitates the locking of the long neck bolt 404 to avoid loose locking due to the curved outer surface of the main pipe 1. When installing the reinforcement component 4, when the arc panel 401 and the sealing gasket 403 are in contact with the inner wall of the bellows body 3, the end of the long neck bolt 404 passes through the base block 101, the main pipe 1, the sealing ring 102, the bellows body 3, the sealing gasket 403, the arc panel 401 and the ladder frame 402 in turn and is screwed on with the nut 405 to complete the locking. This process is repeated to lock and fix all the arc panels 401 to form internal reinforcement.

[0040] The four arc panels 401 are arranged in a ring array to form a circular ring structure, which is adapted to the inner diameter of the bellows body 3 .

[0041] The specific working principle of the utility model is as follows: first, the end of the bellows body 3 is placed in the main pipe 1, and then a group of reinforcement components 4 are placed in the end of the bellows body 3, the outer wall of the bellows body 3 is first fitted to the inner wall of the sealing ring 102, and then the arc panel 401 in the reinforcement component 4 is abutted against the inner wall of the end of the bellows body 3, at this time, the sealing gasket 403 fits the inner wall of the bellows body 3, and then the end of the long neck bolt 404 is passed from the outside through the base block 101, the main pipe 1, the sealing ring 102, the bellows body 3, the sealing gasket 403, the arc panel 401 and the ladder frame 402 in sequence and the nut 405 is screwed on, and the end is completed. The arc panels 401 are locked and fixed repeatedly to form internal reinforcement; another main pipe 1 and another bellows main body 3 are also installed in this way; subsequently, when two secondary pipes 2 are connected, the threaded head 204 at the end of one secondary pipe 2 is screwed into the threaded groove 205 at the end of the other secondary pipe 2 to achieve preliminary connection and fixation; then, a long-necked bolt 202 is passed through the arc-shaped grooves 201 on the same straight line on the two secondary pipes 2, and a nut 203 is screwed on the end of the long-necked bolt 202 to thread and fix it, thereby achieving a double reinforcement effect and completing the fixed connection of the two bellows main bodies 3.

[0042] The above are only preferred embodiments of the present invention and do not limit the present invention. Any modification to the technical solutions recorded in the aforementioned embodiments and any equivalent replacement of some of the technical features therein, any modification, equivalent replacement, and improvement made are all within the protection scope of the present invention.

Claims

1. A bellows connection assembly, comprising two main pipes (1), two auxiliary pipes (2) and two reinforcement assemblies (4), characterized in that: A secondary pipe (2) is fixed to the adjacent ends of the two main pipes (1), and the two secondary pipes (2) are threadedly connected; A sealing ring (102) is arranged on the inner wall of the main pipe (1), a bellows body (3) is arranged in the inner cavity of the main pipe (1), a reinforcement component (4) is arranged in the inner cavity of the end of the bellows body (3), and the reinforcement component (4) is also located in the inner cavity of the main pipe (1); The reinforcement assembly (4) comprises four arc panels (401) distributed in a ring array, and a sealing gasket (403) is bonded to the outer arc surface of each arc panel (401), and a ladder frame (402) is fixed to the inner arc surface of each arc panel (401); the outer arc surface of the sealing gasket (403) contacts the inner wall of the end of the bellows body (3), and the inner wall of the sealing ring (102) contacts the outer wall of the end of the bellows body (3).

2. A bellows connection assembly according to claim 1, characterized in that: The adjacent ends of the two auxiliary pipes (2) are respectively fixed with a thread head (204) and a corresponding thread groove (205), and one auxiliary pipe (2) is screwed into the thread groove (205) in the other auxiliary pipe (2) through the thread head (204) to be threadedly connected and fixed.

3. The bellows connection assembly according to claim 1, characterized in that: The outer sides of the two auxiliary pipes (2) are provided with arc-shaped grooves (201) distributed in a circular array, and a long-necked bolt (202) is inserted between the arc-shaped grooves (201) on the two auxiliary pipes (2) that are on the same straight line, and a nut (203) is screwed on the end of the long-necked bolt (202) to be threadedly fixed.

4. The bellows connection assembly according to claim 1, characterized in that: The smooth end of the bellows body (3) is located in the inner cavity of the main pipe (1), and the corrugated section of the bellows body (3) is located outside the main pipe (1).

5. The bellows connection assembly according to claim 1, characterized in that: The outer periphery of the main pipe (1) is fixed with base blocks (101) distributed in a ring array, the position of the base block (101) corresponds to the position of the reinforcement assembly (4), and a second long-necked bolt (404) is vertically inserted into the base block (101), and the end of the second long-necked bolt (404) passes through the base block (101), the main pipe (1), the sealing ring (102), the bellows body (3), the sealing gasket (403), the curved panel (401) and the ladder frame (402) in sequence and is screwed with a second nut (405).

6. The bellows connection assembly according to claim 1, characterized in that: The four arc panels (401) are arranged in a ring array to form a circular ring structure, which is adapted to the inner diameter of the bellows body (3).

Images