Leakage-proof finished expansion joint

Abstract

The utility model discloses a leakproof finished expansion joint, which relates to the technical field of expansion joints and comprises a base, the top of the base is movably connected with an expansion joint body, the top of the expansion joint body is fixedly connected with a connecting gasket, the top of the connecting gasket is fixedly connected with a middle cup body, and the top of the middle cup body is movably connected with an upper cover body. Connecting rods are connected to the four corners of the connecting gasket in a penetrating mode, and fixing nuts are connected to the tops of the connecting rods in a threaded mode. According to the stretching length of the telescopic joint body, the inserting length of the connecting rod in the inserting pipe is adjusted, the connecting rod is fixed through the fixing nut on the top, the device can be more fixed after being adjusted, the inner wall of the pipe body is further fixedly connected with the waterproof coating, internal water can be prevented from seeping outwards, and the service life of the device is prolonged. And meanwhile, a pressure-bearing pipe is further fixedly connected into the pipe body, and the pressure-bearing pipe is installed in the pipe body, so that when the device is used, damage to the pipe body caused by impact force brought by internal liquid can be weakened.

Description

Technical Field

[0001] The utility model relates to the technical field of expansion joints, in particular to a finished water-leakage-proof expansion joint. Background Art

[0002] The expansion joint can also be called a pipe expansion joint, compensator, or expansion joint. Because of the thermal expansion and contraction of the pipe, the pipe wall will generate stress and push-pull force. The stress of the pipe wall affects the strength of the pipe. As the push-pull force increases, the fixed bracket of the pipe must be made very large to withstand the push-pull force generated by the expansion and contraction of the pipe. Therefore, the variable opening method of the expansion joint is used to reduce the pipe wall stress and thrust. Therefore, the expansion joint is widely used in industries such as gas pipelines, hydropower stations, and heating companies.

[0003] The existing technology has the following problems:

[0004] 1. The existing finished waterproof expansion joints can be expanded and contracted after installation, so they are easily affected by internal and external factors. There is no fixed device to fix the expansion length after adjustment, which leads to deformation during use.

[0005] 2. The existing finished water-leakage-proof expansion joints, in order to achieve a better expansion and contraction adjustment effect, ignore the effect of water leakage prevention, which causes the pipeline to break after a period of use, shortening the service life of the device. Utility Model Content

[0006] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0007] A finished water-leakage-proof expansion joint comprises a base, the top of the base is movably connected to an expansion joint body, the top of the expansion joint body is fixedly connected to a connecting gasket, the top of the connecting gasket is fixedly connected to a middle cup body, the top of the middle cup body is movably connected to an upper cover body, the four corners of the connecting gasket are penetrated by connecting rods, and the top of the connecting rod is threadedly connected to a fixing nut.

[0008] A further improvement of the technical solution of the utility model is that the base includes a bottom plate, the outer wall of the bottom plate is fixedly connected to a limiting ring, the top of the bottom plate is sleeved with a connecting block, the top of the connecting block is fixedly connected to a plug-in tube, and the four corners of the connecting block are penetrated by plug-in tubes.

[0009] A further improvement of the technical solution of the utility model is that the bottom of the connecting rod is movably plugged into the inside of the plug-in tube, and the top of the plug-in tube is fixedly connected to the bottom of the telescopic joint body.

[0010] A further improvement of the technical solution of the utility model is that the telescopic joint includes a tube body, the outer wall of the tube body is fixedly connected to an expansion tube, the top of the tube body is fixedly connected to a sealing ring, the inner wall of the tube body is fixedly connected to a waterproof coating, the inner wall of the waterproof coating is fixedly connected to a pressure-bearing tube, and the inner wall of the pressure-bearing tube is fixedly connected to a smooth layer.

[0011] A further improvement of the technical solution of the utility model is that the expansion tube is embedded in the interior of the tube body to play a role of stretching or shortening.

[0012] A further improvement of the technical solution of the utility model is that a telescopic rod is fixedly connected to the upper part of the outer wall of the middle cup body, one end of the telescopic rod is fixedly connected to a first sliding tooth plate, and a second sliding tooth plate is embedded in the inner wall of the upper cover body.

[0013] A further improvement of the technical solution of the utility model is that the telescopic rod has a function of supporting and fixing the first sliding tooth plate and the second sliding tooth plate.

[0014] Due to the adoption of the above technical solution, the utility model has achieved the following technical progress compared with the prior art:

[0015] 1. The utility model provides a finished water-leakage-proof expansion joint, in which a connecting block is fixedly connected to the top of the bottom plate, and four groups of connecting rods are connected through the inside of the connecting block in order to provide fixed support for the internal expansion joint body. According to the stretching length of the expansion joint body, the plug-in length of the connecting rod in the plug-in tube is adjusted, and the device is fixed by the fixing nut on the top, so that the device can be more fixed after adjustment, and the connection shape will not be changed due to external effects, making the device more convenient to use.

[0016] 2. The utility model provides a finished water-leakage-proof expansion joint. Because the inside of the pipe body is connected to the expansion tube, the devices can be more flexible in expansion and contraction. However, the expansion folds are easy to break, which will affect the pipe connection. Therefore, the connection of the expansion tube has more tension, and the inner wall of the pipe body is also fixedly connected with a waterproof coating to prevent the internal water from seeping out. At the same time, the inside of the pipe body is also fixedly connected with a pressure-bearing pipe. The pressure-bearing pipe is installed inside, so that when the device is in use, the impact force caused by the internal liquid can reduce the damage to the pipe body, thereby extending the service life of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the finished water-leakage-proof expansion joint of the utility model;

[0018] Figure 2 It is a structural schematic diagram of the base of the utility model;

[0019] Figure 3 It is a structural schematic diagram of the telescopic joint of the utility model;

[0020] Figure 4 It is a structural schematic diagram of the middle cup body of the utility model.

[0021] In the figure: 1. base; 2. telescopic joint; 3. connecting rod; 4. connecting gasket; 5. fixing nut; 6. middle cup body; 7. upper cover body; 11. bottom plate; 12. limiting ring; 13. plug-in cylinder; 14. connecting block; 15. plug-in tube; 21. tube body; 22. expansion tube; 23. sealing ring; 24. waterproof coating; 25. pressure tube; 26. smooth layer; 61. telescopic rod; 62. first sliding tooth plate; 63. second sliding tooth plate. DETAILED DESCRIPTION

[0022] The present invention is further described in detail below in conjunction with the embodiments:

[0023] Example 1

[0024] like Figure 1-4 As shown, the utility model provides a finished water-leakage-proof expansion joint, comprising a base 1, a expansion joint body 2 is movably connected to the top of the base 1, a connecting gasket 4 is fixedly connected to the top of the expansion joint body 2, a middle cup body 6 is fixedly connected to the top of the connecting gasket 4, an upper cover body 7 is movably connected to the top of the middle cup body 6, connecting rods 3 are penetrated and connected to the four corners of the connecting gasket 4, and a fixing nut 5 is threadedly connected to the top of the connecting rod 3.

[0025] In this embodiment, through the joint action of the base 1, the telescopic joint 2, the connecting gasket 4, the middle cup body 6 and the upper cover body 7, the device can be made more convenient to use. The top of the base 1 is fixedly connected with the telescopic joint 2, and the length can be adjusted. At the same time, the top is connected to the middle cup body 6 through the connecting gasket 4. The top of the middle cup body 6 and the upper cover body 7 are movably connected, and the length of the connection can be adjusted up and down. The telescopic joint is made more convenient to use through various means.

[0026] Example 2

[0027] like Figure 1-4 As shown, based on Example 1, the utility model provides a technical solution: preferably, the base 1 includes a bottom plate 11, the outer wall of the bottom plate 11 is fixedly connected to a limiting ring 12, the top of the bottom plate 11 is sleeved with a connecting block 14, the top of the connecting block 14 is fixedly connected to a plug-in tube 13, and the four corners of the connecting block 14 are penetrated by plug-in tubes 15.

[0028] The bottom of the connecting rod 3 is movably plugged into the inside of the plug-in tube 15 , and the top of the plug-in tube 13 is fixedly connected to the bottom of the telescopic joint 2 .

[0029] In this embodiment, the device can be made more convenient to use through the joint action of the bottom plate 11, the plug-in tube 13, the connecting block 14 and the plug-in tube 15. The base 1 plays a role of fixed connection. The contact area of ​​the bottom plate 11 is large, which is convenient for the stable placement of the device and will not cause damage during transportation. The top of the bottom plate 11 is fixedly connected with a connecting block 14. Four groups of connecting rods 3 are connected through the inside of the connecting block 14 in order to provide fixed support for the internal telescopic joint 2. According to the stretching length of the telescopic joint 2, the plug-in length of the connecting rod 3 in the plug-in tube 15 is adjusted, and then it is fixed by the fixing nut 5 on the top, so that the device can be more fixed after adjustment.

[0030] Example 3

[0031] like Figure 1-4 As shown, on the basis of Example 1, the utility model provides a technical solution: preferably, the telescopic joint 2 includes a tube body 21, the outer wall of the tube body 21 is fixedly connected with an expansion tube 22, the top of the tube body 21 is fixedly connected with a sealing ring 23, the inner wall of the tube body 21 is fixedly connected with a waterproof coating 24, the inner wall of the waterproof coating 24 is fixedly connected with a pressure-bearing tube 25, and the inner wall of the pressure-bearing tube 25 is fixedly connected with a smooth layer 26.

[0032] The expansion tube 22 is embedded in the tube body 21 to play a role of stretching or shortening.

[0033] In this embodiment, through the joint action of the tube body 21, the expansion tube 22 and the sealing ring 23, the device can be made more leak-proof. The interior of the tube body 21 is connected to the expansion tube 22, which can make the device more flexible in expansion and contraction. However, the expansion folds are easy to break, which will affect the pipeline connection, so the connection of the expansion tube 22 has more tension, and the inner wall of the tube body 21 is also fixedly connected with a waterproof coating 24, which can prevent the internal water from seeping out. At the same time, the interior of the tube body 21 is also fixedly connected with a pressure-bearing tube 25. The pressure-bearing tube 25 is installed inside, so that when the device is in use, the impact force caused by the internal liquid can reduce the damage to the tube body 21, thereby extending the service life of the device.

[0034] Example 4

[0035] like Figure 1-4 As shown, based on Example 1, the utility model provides a technical solution: preferably, a telescopic rod 61 is fixedly connected to the upper part of the outer wall of the middle cup body 6, one end of the telescopic rod 61 is fixedly connected to the first sliding tooth plate 62, and a second sliding tooth plate 63 is embedded in the inner wall of the upper cover body 7.

[0036] The telescopic rod 61 supports and fixes the first sliding tooth plate 62 and the second sliding tooth plate 63 .

[0037] The following is a detailed description of the working principle of the finished waterproof expansion joint.

[0038] like Figure 1-4 As shown, when this waterproof finished telescopic joint is in use, the top of the base 1 is fixedly connected with the telescopic joint body 2, and the length can be adjusted. At the same time, the top is connected to the middle cup body 6 through the connecting gasket 4, and the top of the middle cup body 6 is movably connected to the upper cover body 7, and the length of the connection can be adjusted up and down. The telescopic joint is made more convenient to use through various means. The base 1 plays a fixed connection role, and the contact area of ​​the bottom plate 11 is large, which is convenient for the stable placement of the device and will not cause damage during transportation. The top of the bottom plate 11 is fixedly connected with a connecting block 14, and four groups of connecting rods 3 are connected inside the connecting block 14 to fix and support the internal telescopic joint body 2. According to the stretching length of the telescopic joint body 2, the insertion length of the connecting rod 3 in the plug-in tube 15 is adjusted, and then it is fixed by the fixing nut 5 on the top, so that the device can be more fixed after adjustment. The inside of the tube body 21 is connected to the expansion tube 22, which can make the devices stretchable. The expansion tube 22 is more flexible in expansion and contraction, but the expansion folds are easy to break, which will affect the pipeline connection, so the connection of the expansion tube 22 has more tension, and the inner wall of the tube body 21 is also fixedly connected with a waterproof coating 24, which can prevent the internal water from seeping out, and at the same time, the inside of the tube body 21 is also fixedly connected with a pressure-bearing tube 25, which is installed inside, so that when the device is in use, the impact force brought by the internal liquid can reduce the damage to the tube body 21, so that the service life of the device is further extended, and the middle cup body 6 and the upper cover body 7 are extended by pulling the upper cover body 7 to extend, and the first sliding tooth plate 62 and the second sliding tooth plate 63 are slidably connected, but in order to maintain the sealing and reduce the leakage of the device connection, the first sliding tooth plate 62 connected to the device can be pressed to one side through the telescopic rod 61, so that the connection gap between the first sliding tooth plate 62 and the second sliding tooth plate 63 is squeezed and reduced, so that the device is tightly connected.

[0039] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not deviate from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A finished water-leakage-proof expansion joint, comprising a base (1), characterized in that: The top of the base (1) is movably connected to a telescopic joint (2), the top of the telescopic joint (2) is fixedly connected to a connecting gasket (4), the top of the connecting gasket (4) is fixedly connected to a middle cup body (6), the top of the middle cup body (6) is movably connected to an upper cover body (7), the four corners of the connecting gasket (4) are connected through connecting rods (3), and the top of the connecting rod (3) is threadedly connected to a fixing nut (5).

2. A finished water-proof expansion joint according to claim 1, characterized in that: The base (1) comprises a bottom plate (11), the outer wall of the bottom plate (11) is fixedly connected to a limit ring (12), the top of the bottom plate (11) is sleeved with a connection block (14), the top of the connection block (14) is fixedly connected to a plug-in tube (13), and the four corners of the connection block (14) are penetrated by plug-in tubes (15).

3. A finished water-proof expansion joint according to claim 2, characterized in that: The bottom of the connecting rod (3) is movably plugged into the interior of the plug-in tube (15), and the top of the plug-in tube (13) is fixedly connected to the bottom of the telescopic joint (2).

4. The finished water-proof expansion joint according to claim 1, characterized in that: The telescopic joint (2) comprises a tube body (21), the outer wall of the tube body (21) is fixedly connected to an expansion tube (22), the top of the tube body (21) is fixedly connected to a sealing ring (23), the inner wall of the tube body (21) is fixedly connected to a waterproof coating (24), the inner wall of the waterproof coating (24) is fixedly connected to a pressure-bearing tube (25), and the inner wall of the pressure-bearing tube (25) is fixedly connected to a smooth surface layer (26).

5. The finished water-proof expansion joint according to claim 4 is characterized by: The expansion tube (22) is embedded in the interior of the tube body (21) to play a role of stretching or shortening.

6. The finished water-proof expansion joint according to claim 1, characterized in that: A telescopic rod (61) is fixedly connected to the upper portion of the outer wall of the middle cup body (6), one end of the telescopic rod (61) is fixedly connected to a first sliding tooth plate (62), and a second sliding tooth plate (63) is embedded in the inner wall of the upper cover body (7).

7. A finished water-proof expansion joint according to claim 6, characterized in that: The telescopic rod (61) has a function of supporting and fixing the first sliding tooth plate (62) and the second sliding tooth plate (63).

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