Water supply pipe connecting structure

Abstract

The utility model relates to the technical field of water pipes, in particular to a water supply pipe connecting structure which comprises a first water pipe, a connecting sleeve is movably sleeved on the first water pipe, a pre-fixing mechanism convenient for assisting the first water pipe in connection and fixation is arranged on the connecting sleeve, and a first connecting frame is fixedly connected on the connecting sleeve. The rotating shaft is rotationally connected to the interior of the first connecting frame, the screw rod is fixedly connected to the rotating shaft, and the second connecting frame is fixedly connected to the other set of connecting sleeves. According to the water supply pipe connecting structure, clamping plates are arranged at the ends, close to a first flange and a second flange, of two sets of connecting sleeves connected to a first water pipe and a second water pipe in a sleeving mode correspondingly, and meanwhile a first connecting frame and a second connecting frame are arranged on the two sets of connecting sleeves correspondingly; a rotating shaft and a screw rod which are rotationally connected in the first connecting frame are connected with a pull arm and a pull shaft which are rotationally connected in the second connecting frame, and the pull shaft is connected with an adjusting screw sleeve so as to assist the connection of the first water pipe and the second water pipe.

Description

Technical Field

[0001] The utility model relates to the technical field of water pipes, in particular to a water supply pipe connection structure. Background Technique

[0002] The water supply pipe is a kind of green, energy-saving and environment-friendly pipe, which is widely used in the fields of domestic water supply and drainage, chemical industry, sewage discharge, transformation of waterworks and national water conservancy projects, etc. Flanges are often used for connection when multiple water supply pipes are connected.

[0003] The above device does not have a structure for tightly connecting the flanges of the water supply pipe when in use. When the existing water supply pipes are connected by flanges, multiple bolts are required for connection. However, during the docking process, each bolt needs to be tightened one by one, resulting in uneven tightening strength of the flanges, and it is easy to cause poor pressing force between the flange and the gasket when tightening with bolts. Based on the existing technical deficiencies, the utility model designs a water supply pipe connection structure. Content of the Utility Model

[0004] Aiming at the deficiencies of the prior art, the utility model provides a water supply pipe connection structure, which has the advantage of tightly connecting the flanges of the water supply pipe.

[0005] The utility model provides the following technical scheme: a water supply pipe connection structure, including a first water pipe, a connection sleeve is movably sleeved on the first water pipe, and a pre-fixing mechanism for facilitating the connection and fixation of the first water pipe is arranged on the connection sleeve;

[0006] The pre-fixing mechanism includes a first connecting frame, a rotating shaft, a screw rod, a second connecting frame, a pulling arm, a holding rod, a pulling shaft and an adjusting screw sleeve. The first connecting frame is fixedly connected to the connection sleeve, the rotating shaft is rotatably connected inside the first connecting frame, the screw rod is fixedly connected to the rotating shaft, the second connecting frame is fixedly connected to another connection sleeve, the pulling arm is rotatably connected to the top of the second connecting frame, the holding rod is fixedly connected to the inner side of the pulling arm, the pulling shaft is rotatably connected to the inner side of the pulling arm, and the adjusting screw sleeve is rotatably connected through the inside of the pulling shaft.

[0007] As a preferred technical scheme of the utility model, a first flange is fixedly connected to one end of the first water pipe, a second water pipe is arranged at one end of the first water pipe, a second flange is fixedly connected to the end of the second water pipe facing the first water pipe, a flange gasket is fixedly connected between the first flange and the second flange, and connecting bolts are fixedly connected to the first flange and the second flange.

[0008] As a preferred technical scheme of the utility model, a mounting plate is fixedly connected to the surface of the connection sleeve, a mounting bolt is fixedly connected to the mounting plate, and a clamping plate is fixedly connected to one end of the mounting bolt.

[0009] As a preferred technical solution of the present utility model, the flange gasket is arranged between the first water pipe and the second water pipe, and a connecting bolt is fixedly penetrated inside the flange gasket.

[0010] As a preferred technical solution of the present utility model, the connecting sleeve is a split type.

[0011] As a preferred technical solution of the present utility model, two groups of the connecting sleeves are respectively sleeved on the first water pipe and the second water pipe, and two groups of the clamping plates are respectively connected to the first flange and the second flange.

[0012] As a preferred technical solution of the present utility model, the screw rod is threadedly inserted inside the adjusting nut sleeve.

[0013] As a preferred technical solution of the present utility model, the screw rod is connected through and inside the pulling shaft.

[0014] Compared with the prior art, the present utility model has the following beneficial effects:

[0015] For this water supply pipe connection structure, by respectively sleeving two groups of split-type connecting sleeves on the first water pipe and the second water pipe and connecting them by using the mounting plate and the mounting bolts, then pushing the two groups of connecting sleeves to make the clamping plates respectively fit with the first flange and the second flange. At this time, rotate and adjust the adjusting nut sleeve to adjust the actual pulling length of the screw rod according to the actual sizes of the first water pipe, the first flange, the second water pipe and the second flange. After the screw rod and the adjusting nut sleeve are adjusted, hold the holding rod and pull it towards the inside of the first water pipe. The pulling arm rotates under the pulling of the holding rod and drives the pulling shaft and the adjusting nut sleeve to move accordingly to pull the screw rod. The pulled screw rod uses the rotating shaft and the first connecting frame to pull the two groups of connecting sleeves to clamp the first flange and the second flange, thereby shortening the distance between them and extruding the flange gasket. At this time, pass the connecting bolt through the first flange, the second flange and the flange gasket for connection and fixation. This device is convenient for connecting and fixing the first flange and the second flange. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0017] Figure 2 is a schematic diagram of the bottom view structure of the water pipe of the present utility model;

[0018] Figure 3 is a schematic diagram of the exploded structure of the water pipe of the present utility model;

[0019] Figure 4 is a schematic diagram of the connection structure between the connecting sleeve and the pre-fixing mechanism of the present utility model;

[0020] Figure 5 is a schematic diagram of the exploded structure of the pre-fixing mechanism of the present utility model.

[0021] In the figure: 1. First water pipe; 101. First flange; 102. Second water pipe; 103. Second flange; 104. Flange gasket; 105. Connecting bolt; 2. Connecting sleeve; 201. Mounting plate; 202. Mounting bolt; 203. Clamping plate; 3. Pre-fixing mechanism; 301. First connecting frame; 302. Rotating shaft; 303. Screw; 304. Second connecting frame; 305. Pulling arm; 306. Holding rod; 307. Pulling shaft; 308. Adjusting nut sleeve. Specific implementation mode

[0022] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0023] Please refer to Figures 1-5 , a water supply pipe connection structure, including a first water pipe 1, a connecting sleeve 2 is movably sleeved on the first water pipe 1, and a pre-fixing mechanism 3 for facilitating the connection and fixation of the first water pipe 1 is arranged on the connecting sleeve 2. One end of the first water pipe 1 is fixedly connected with a first flange 101, one end of the first water pipe 1 is provided with a second water pipe 102, and one end of the second water pipe 102 facing the first water pipe 1 is fixedly connected with a second flange 103. A flange gasket 104 is fixedly connected between the first flange 101 and the second flange 103. Connecting bolts 105 are fixedly connected to the first flange 101 and the second flange 103. The flange gasket 104 is arranged between the first water pipe 1 and the second water pipe 102, and the connecting bolts 105 are fixedly penetrated in the flange gasket 104.

[0024] Please refer to Figure 5 , the pre-fixing mechanism 3, the pre-fixing mechanism 3 includes a first connecting frame 301, a rotating shaft 302, a screw 303, a second connecting frame 304, a pulling arm 305, a holding rod 306, a pulling shaft 307 and an adjusting nut sleeve 308. The first connecting frame 301 is fixedly connected to the connecting sleeve 2. The rotating shaft 302 is rotatably connected inside the first connecting frame 301. The screw 303 is fixedly connected to the rotating shaft 302. The second connecting frame 304 is fixedly connected to another group of connecting sleeves 2. The pulling arm 305 is rotatably connected to the top of the second connecting frame 304. The holding rod 306 is fixedly connected to the inner side of the pulling arm 305. The pulling shaft 307 is rotatably connected to the inner side of the pulling arm 305. The adjusting nut sleeve 308 is rotatably penetrated and connected inside the pulling shaft 307. The screw 303 is threadedly inserted inside the adjusting nut sleeve 308. The screw 303 is penetrated and connected inside the pulling shaft 307.

[0025] By setting the second connecting frame 304, the pulling arm 305, the grip rod 306, the pulling shaft 307 and the adjusting sleeve 308, it is convenient to move the traction screw 303, thereby shortening the distance between the two connecting sleeves 2, and using the clamping plate 203 to clamp the first flange 101 and the second flange 103 to shorten the distance between them and squeeze the flange gasket 104, improving the connection tightness. By setting the pulling shaft 307 and the adjusting sleeve 308, it is convenient to connect and fix the first water pipe 1, the first flange 101, the second water pipe 102 and the second flange 103 of different sizes.

[0026] Please refer to Figure 4 On the surface of the connecting sleeve 2, a mounting plate 201 is fixedly connected. On the mounting plate 201, a mounting bolt 202 is fixedly connected. One end of the mounting bolt 202 is fixedly connected with a clamping plate 203. The connecting sleeve 2 is split. The two groups of connecting sleeves 2 are respectively sleeved on the first water pipe 1 and the second water pipe 102, and the two groups of clamping plates 203 are respectively connected to the first flange 101 and the second flange 103.

[0027] By setting the connecting sleeve 2, it is convenient to install and fix the pre-fixing mechanism 3. By setting the mounting plate 201 and the mounting bolt 202, it is convenient to install the pre-fixing mechanism 3 on the first water pipe 1 and the second water pipe 102 of different sizes. By setting the clamping plate 203, it is convenient to assist the pre-fixing mechanism 3 to clamp the first flange 101 and the second flange 103.

[0028] Working principle: When a water pipe connection structure is used, in the initial state, first, the first flange 101 is arranged at one end of the first water pipe 1. At one end of the first water pipe 1 close to the first flange 101, there are also the second water pipe 102 and the second flange 103 connected by the connecting bolt 105. At the same time, a flange gasket 104 is arranged between the first flange 101 and the second flange 103 to facilitate the assembly and connection of the first water pipe 1 and the second water pipe 102. At one end of the two groups of connecting sleeves 2 sleeved on the first water pipe 1 and the second water pipe 102 close to the first flange 101 and the second flange 103, there are clamping plates 203. At the same time, the first connecting frame 301 and the second connecting frame 304 are respectively arranged on the two groups of connecting sleeves 2. The rotating shaft 302 and the screw 303 rotatably connected in the first connecting frame 301 are connected to the pulling arm 305, the pulling shaft 307 and the adjusting sleeve 308 rotatably connected in the second connecting frame 304 to facilitate the connection of the first water pipe 1 and the second water pipe 102.

[0029] When it is necessary to connect and fix the first flange 101 and the second flange 103, first, the two sets of split connecting sleeves 2 are respectively sleeved on the first water pipe 1 and the second water pipe 102 and connected by using the mounting plate 201 and the mounting bolts 202. Then, the two sets of connecting sleeves 2 are pushed so that the clamping plates 203 are respectively fitted with the first flange 101 and the second flange 103. At this time, the adjusting screw sleeve 308 is rotated to adjust the actual traction length of the screw rod 303 according to the actual dimensions of the first water pipe 1, the first flange 101, the second water pipe 102 and the second flange 103. After the screw rod 303 and the adjusting screw sleeve 308 are adjusted, the grip rod 306 is held and pulled towards the inside of the first water pipe 1. The pulling arm 305 rotates under the pulling of the grip rod 306 and drives the pulling shaft 307 and the adjusting screw sleeve 308 to move accordingly to traction the screw rod 303. The traction screw rod 303 uses the rotating shaft 302 and the first connecting frame 301 to traction the two sets of connecting sleeves 2 to clamp the first flange 101 and the second flange 103, thereby shortening the distance between the two and extruding the flange gasket 104. At this time, the connecting bolt 105 is passed through the first flange 101, the second flange 103 and the flange gasket 104 for connection and fixation. This device is convenient for connecting and fixing the first flange 101 and the second flange 103.

[0030] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A water supply pipe connection structure, comprising a first water pipe (1), characterized in that: The first water pipe (1) is movably sleeved with a connecting sleeve (2), and the connecting sleeve (2) is provided with a pre-fixing mechanism (3) for assisting the first water pipe (1) in connection and fixing; A pre-fixing mechanism (3), the pre-fixing mechanism (3) comprising a first connecting frame (301), a rotating shaft (302), a screw rod (303), a second connecting frame (304), a pulling arm (305), a gripping rod (306), a pulling shaft (307) and an adjusting screw sleeve (308), wherein the first connecting frame (301) is fixedly connected to the connecting sleeve (2), the rotating shaft (302) is rotatably connected to the inside of the first connecting frame (301), the screw rod (303) is fixedly connected to the rotating shaft (302), the second connecting frame (304) is fixedly connected to another group of connecting sleeves (2), the pulling arm (305) is rotatably connected to the top end of the second connecting frame (304), the gripping rod (306) is fixedly connected to the inner side of the pulling arm (305), the pulling shaft (307) is rotatably connected to the inner side of the pulling arm (305), and the adjusting screw sleeve (308) passes through and is rotatably connected to the inside of the pulling shaft (307).

2. A water supply pipe connection structure according to claim 1, characterized in that: One end of the first water pipe (1) is fixedly connected to a first flange (101), one end of the first water pipe (1) is provided with a second water pipe (102), one end of the second water pipe (102) facing the first water pipe (1) is fixedly connected to a second flange (103), a flange gasket (104) is fixedly connected between the first flange (101) and the second flange (103), and a connecting bolt (105) is fixedly connected to the first flange (101) and the second flange (103).

3. A water supply pipe connection structure according to claim 1, characterized in that: A mounting plate (201) is fixedly connected to the surface of the connecting sleeve (2), a mounting bolt (202) is fixedly connected to the mounting plate (201), and a clamping plate (203) is fixedly connected to one end of the mounting bolt (202).

4. A water supply pipe connection structure according to claim 2, characterized in that: The flange gasket (104) is arranged between the first water pipe (1) and the second water pipe (102), and a connecting bolt (105) is passed through and fixed in the flange gasket (104).

5. A water supply pipe connection structure according to claim 3, characterized in that: The connecting sleeve (2) is of split type.

6. A water supply pipe connection structure according to claim 3, characterized in that: The two groups of connecting sleeves (2) are respectively sleeved on the first water pipe (1) and the second water pipe (102), and the two groups of clamping plates (203) are respectively connected to the first flange (101) and the second flange (103).

7. A water supply pipe connection structure according to claim 1, characterized in that: The screw rod (303) is threadedly inserted into the interior of the adjusting screw sleeve (308).

8. A water supply pipe connection structure according to claim 1, characterized in that: The screw rod (303) is connected through the pull shaft (307).

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