Connecting device of water supply and drainage pipeline

Abstract

The utility model relates to the field of water supply and drainage, and discloses a connecting device of a water supply and drainage pipeline, which comprises two pipe bodies, a sealing sleeve is arranged between the two pipe bodies, connecting sleeves are arranged on the upper part and the lower part of the outer wall of the sealing sleeve, mounting grooves are arranged on the left side and the right side of the sealing sleeve, the pipe bodies are movably connected with the mounting grooves, and the connecting sleeves are connected with the pipe bodies. Inclined ring surfaces are arranged on the left side and the right side of the inner wall of each connecting sleeve, fixing plates are fixedly connected to the front portions and the rear portions of the sides, close to each other, of the two connecting sleeves, and the upper fixing plate and the lower fixing plate are fixedly connected through bolts. According to the utility model, the pipe body is matched with the connecting sleeve and the sealing sleeve, so that the sealing performance of the connecting part of the pipeline can be effectively improved, and the sealing performance of the connection between the pipeline and the sealing sleeve can be further enhanced through the matching of the positioning semi-ring, the inclined ring surface, the ring gasket, the ring groove and other parts, so that the pipeline sealing device is more practical.

Description

Technical Field

[0001] The utility model relates to the field of water supply and drainage, in particular to a connecting device for water supply and drainage pipes. Background Art

[0002] Water supply and drainage pipes are essential systems in buildings and infrastructure, mainly used for water supply and discharge. The connection devices of water supply and drainage pipes are an important component to ensure the normal operation of the pipeline system and maintain its sealing.

[0003] After searching, Chinese Patent Publication No.: CN 221974582 U discloses a connection device for water supply and drainage pipes, which relates to the field of pipe connection. It includes a pair of arc-shaped connecting plates, which are covered on the outside of the two pipes and cover the gap; a main sealing ring is sleeved on the two pipes, and a sealing ring is provided in the gap. The main sealing ring is located between the inner wall of the connecting plate and the outer wall of the pipe. One side of the sealing ring is in contact with one pipe, and the other side of the sealing ring is in contact with the other pipe; the pair of connecting plates are locked by a plurality of bolts. The outer wall of the sealing ring is provided with a convex edge, which extends along the axial direction of the pipe. The convex edge is annular and is an integrally formed structure with the sealing ring. The inner wall of the connecting plate squeezes the convex edge along the radial direction of the pipe. This application has the effect of improving the connection strength of the pipe and ensuring watertightness.

[0004] Although the above-mentioned device can slightly deform the main sealing ring by setting the pushing block, due to the small size of the pushing block, it can only squeeze a part of the main sealing ring, and the two sides of the squeezed part of the main sealing ring will be tilted in opposite directions under the action of the force, which will affect the sealing performance of the main sealing ring. Therefore, a connection device for water supply and drainage pipes is proposed to solve the above problems. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides a connecting device for water supply and drainage pipes, which aims to improve the problem in the prior art that due to the small size of the pushing block, it can only squeeze a part of the main sealing ring, and the two sides of the squeezed part of the main sealing ring will be tilted in opposite directions under the action of force, which will affect the sealing performance of the main sealing ring and is not practical.

[0006] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solution: a connecting device for water supply and drainage pipes, including two pipe bodies, a sealing sleeve is commonly provided between the two pipe bodies, connecting sleeves are provided on the upper and lower parts of the outer wall of the sealing sleeve, mounting grooves are provided on the left and right sides of the sealing sleeve, the pipe body is movably connected to the mounting groove, oblique annular surfaces are provided on the left and right sides of the inner wall of the connecting sleeve, the front and rear parts of the two connecting sleeves close to each other are fixedly connected to a fixing plate, and the upper and lower fixing plates are fixedly connected by bolts.

[0007] As a further description of the above technical solution:

[0008] Positioning half rings are fixed on the left and right parts of the inner wall of the connecting sleeve.

[0009] As a further description of the above technical solution:

[0010] A limiting piece is provided on the top of the fixing plate located at the lower part.

[0011] As a further description of the above technical solution:

[0012] The limiting member includes a limiting block, which is fixedly connected to the fixing plate located at the bottom. Connecting grooves are provided on the left and right sides of the upper portion of the limiting block, and limiting openings are provided on the sides of the two connecting grooves that are away from each other.

[0013] As a further description of the above technical solution:

[0014] The limiting member further comprises a clamping bead, which is movably connected to the connecting groove and the limiting opening, and a spring is fixedly connected between the clamping bead and the connecting groove.

[0015] As a further description of the above technical solution:

[0016] A bayonet is provided in the middle of the fixing plate located at the upper portion, and the limiting block is movably connected to the bayonet.

[0017] As a further description of the above technical solution:

[0018] Ring pads are provided on the left and right parts of the outer wall of the sealing sleeve. The positioning half ring is movably connected to the ring pads. A limiting groove is provided on the inner side of the installation groove.

[0019] As a further description of the above technical solution:

[0020] The outer wall of the tube body is provided with an annular groove, the annular gasket is movably connected to the annular groove, the inner side of the tube body is fixedly connected to a limiting ring, and the limiting ring is movably connected to the limiting groove.

[0021] The utility model has the following beneficial effects:

[0022] 1. In the present invention, the sealing performance of the pipe connection can be effectively improved by arranging the mutual cooperation between the pipe body, the connecting sleeve and the sealing sleeve. By arranging the mutual cooperation between the positioning half ring and the oblique ring surface and the ring gasket, the ring groove and other components, the sealing performance of the connection between the pipe and the sealing sleeve can be further enhanced, which is more practical.

[0023] 2. In the utility model, by arranging the mutual cooperation between the connecting sleeve and the fixing plate as well as the limit block, the bayonet, the connecting groove, the limit opening, the card bead, the spring and other components, preliminary limiting can be performed when the two connecting sleeves are connected, which is more convenient for the subsequent positioning and fixing of the bolts and more practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the overall three-dimensional structure of a connection device for water supply and drainage pipes proposed by the utility model;

[0025] Figure 2 This is a partial cross-sectional three-dimensional structural diagram of a connection device for water supply and drainage pipes proposed by the present invention;

[0026] Figure 3 This is a schematic diagram of the disassembled three-dimensional structure of a connection device for water supply and drainage pipes proposed by the utility model;

[0027] Figure 4 This is a schematic diagram of the cross-sectional three-dimensional structure of a limiting component of a connecting device for water supply and drainage pipes proposed by the utility model.

[0028] Legend:

[0029] 1. Tube body; 2. Connecting sleeve; 3. Sealing sleeve; 21. Fixing plate; 22. Positioning half ring; 23. Beveled ring surface; 24. Limiting piece; 241. Limiting block; 242. Connecting groove; 243. Limiting opening; 244. Spring; 245. Card bead; 211. Bayonet; 31. Mounting groove; 32. Limiting groove; 33. Ring washer; 11. Limiting ring; 12. Ring groove. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0031] Reference Figure 1 - Figure 3The utility model provides an embodiment: a connecting device for water supply and drainage pipes, including two pipe bodies 1, which are water supply and drainage pipes. A sealing sleeve 3 is commonly provided between the two pipe bodies 1. The sealing sleeve 3 is made of rubber and is used to ensure the sealing of the connection between the two pipes. The upper and lower parts of the outer wall of the sealing sleeve 3 are provided with connecting sleeves 2. The connecting sleeve 2 is a semicircular ring, which is used to further strengthen the tightness of the connection between the sealing sleeve 3 and the pipe body 1.

[0032] Furthermore, mounting grooves 31 are provided on the left and right sides of the sealing sleeve 3, which are used to cooperate with the connection of the tube body 1. The tube body 1 is movably connected to the mounting groove 31. Ring gaskets 33 are provided on the left and right parts of the outer wall of the sealing sleeve 3, which are used to cooperate with the positioning half ring 22 and the ring groove 12 to improve the connection sealing between the sealing sleeve 3 and the tube body 1. The positioning half ring 22 is movably connected to the ring gasket 33. A limiting groove 32 is provided on the inner side of the mounting groove 31, which is used to cooperate with the connection of the limiting ring 11. A ring groove 12 is provided on the outer wall of the tube body 1, which is used to cooperate with the connection of the ring gasket 33. The ring gasket 33 is movably connected to the ring groove 12. The inner side of the tube body 1 is fixedly connected to the limiting ring 11, which is used to cooperate with the connection stability between the inner side of the tube body 1 and the sealing sleeve 3. The limiting ring 11 is movably connected to the limiting groove 32.

[0033] Furthermore, an oblique annular surface 23 is provided on the left and right sides of the inner wall of the connecting sleeve 2, and the diameter of the side away from the positioning semi-ring 22 is smaller than the side close to the positioning semi-ring 22, which is used to squeeze the edge of the sealing sleeve 3, thereby enhancing the connection sealing between the sealing sleeve 3 and the pipe body 1. The front and rear parts of the two connecting sleeves 2 close to each other are fixedly connected with a fixing plate 21, which is used to cooperate in connecting various components. The upper and lower fixing plates 21 are fixedly connected by bolts to cooperate with the connection of the drainage pipe. The left and right parts of the inner wall of the connecting sleeve 2 are fixed with a positioning semi-ring 22, which is used to cooperate with the extrusion ring gasket 33 to improve the sealing between the sealing sleeve 3 and the pipe body 1. A limiting member 24 is provided on the top of the lower fixing plate 21, which is used to cooperate in limiting the two connecting sleeves 2 to facilitate the subsequent installation and fixing operations of the bolts.

[0034] like Figure 4As shown, the limiting member 24 includes a limiting block 241, which is used to cooperate with the bayonet 211. The limiting block 241 is fixedly connected to the fixed plate 21 at the bottom. The upper left and right sides of the limiting block 241 are provided with connecting grooves 242, which are used to cooperate with the connection of various components. The two connecting grooves 242 are each provided with a limiting opening 243 on the side away from each other, which is used to limit the position of the card bead 245 to prevent it from escaping from the connecting groove 242. The limiting member 24 also includes a card bead 245, which is used to be stuck in the fixed plate 21 at the top. The upper part of the fixed plate 21 is used to realize the preliminary limiting between the two connecting sleeves 2. The card bead 245 is movably connected to the connecting groove 242 and the limiting opening 243 to cooperate with the card bead 245 to extend and retract into the connecting groove 242. A spring 244 is fixedly connected between the card bead 245 and the connecting groove 242 to cooperate with the movement and limiting of the card bead 245. A card opening 211 is provided in the middle of the upper fixed plate 21 to cooperate with the use of the limiting member 24. The limiting block 241 is movably connected to the card opening 211.

[0035] Working principle: When in use, first insert the ends of the two tube bodies 1 that are close to each other into the installation grooves 31 on the left and right sides of the sealing sleeve 3 respectively, so that the limiting ring 11 in the tube body 1 is inserted into the limiting groove 32 on the sealing sleeve 3, and the ring gasket 33 on the sealing sleeve 3 is inserted into the ring groove 12 on the tube body 1, and then dock the two connecting sleeves 2 together and put them on the outside of the sealing sleeve 3, so that the positioning half ring 22 is stuck on the ring gasket 33, so that the positioning half ring 22 presses the ring gasket 33 against the ring groove 12. At the same time, when the two connecting sleeves 2 are completely docked together, the oblique annular surface 23 in the connecting sleeve 2 will squeeze the side of the sealing sleeve 3, so that the side of the sealing sleeve 3 is close to the tube body 1, thereby improving the sealing between the sealing sleeve 3 and the tube body 1. When the two fixing plates 21 are put together, the limiting member 24 on the fixing plate 21 of the lower connecting sleeve 2 will pass through the bayonet 211 provided on the fixing plate 21 of the upper connecting sleeve 2. When the limiting member 24 passes through the bayonet 211, the card bead 245 will be pushed into the connecting groove 242 by the bayonet 211. At this time, the spring 244 will be squeezed. When the card bead 245 completely passes through the bayonet 211, due to the loss of the force applied by the bayonet 211, the spring 244 will push the card bead 245 to return to its original position, so that the card bead 245 is stuck above the upper fixing plate 21, thereby connecting the upper and lower fixing plates 21 together, thereby completing the preliminary limiting between the two connecting sleeves, and then fixing the upper and lower fixing plates 21 together with bolts to complete the installation of the connecting sleeve 2.

[0036] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A connection device for water supply and drainage pipes, comprising two pipe bodies (1), characterized in that: A sealing sleeve (3) is provided between the two tube bodies (1), and a connecting sleeve (2) is provided on the upper and lower parts of the outer wall of the sealing sleeve (3). The left and right sides of the sealing sleeve (3) are provided with mounting grooves (31). The tube body (1) and the mounting groove (31) are movably connected. The left and right sides of the inner wall of the connecting sleeve (2) are provided with oblique annular surfaces (23). The front and rear parts of the two connecting sleeves (2) that are close to each other are fixedly connected with a fixing plate (21), and the upper and lower fixing plates (21) are fixedly connected by bolts.

2. A connecting device for water supply and drainage pipes according to claim 1, characterized in that: Positioning half rings (22) are fixed to the left and right parts of the inner wall of the connecting sleeve (2).

3. A connecting device for water supply and drainage pipes according to claim 1, characterized in that: A limiting member (24) is provided on the top of the fixing plate (21) located at the lower portion.

4. A connecting device for water supply and drainage pipes according to claim 3, characterized in that: The limiting member (24) comprises a limiting block (241), the limiting block (241) being fixedly connected to the fixing plate (21) located at the lower portion, and connecting grooves (242) being provided on both the upper left and right sides of the limiting block (241), and limiting openings (243) being provided on the sides of the two connecting grooves (242) that are away from each other.

5. A connecting device for water supply and drainage pipes according to claim 4, characterized in that: The limiting member (24) further comprises a clamping bead (245), the clamping bead (245) being movably connected to the connecting groove (242) and the limiting opening (243), and a spring (244) being fixedly connected between the clamping bead (245) and the connecting groove (242).

6. A connecting device for water supply and drainage pipes according to claim 4, characterized in that: A bayonet (211) is provided in the middle of the upper fixing plate (21), and the limiting block (241) is movably connected to the bayonet (211).

7. A connecting device for water supply and drainage pipes according to claim 2, characterized in that: Ring gaskets (33) are provided on the left and right parts of the outer wall of the sealing sleeve (3), the positioning half ring (22) is movably connected to the ring gasket (33), and a limiting groove (32) is provided on the inner side of the installation groove (31).

8. A connecting device for water supply and drainage pipes according to claim 7, characterized in that: The outer wall of the tube body (1) is provided with an annular groove (12), the annular gasket (33) is movably connected to the annular groove (12), the inner side of the tube body (1) is fixedly connected to a limiting ring (11), and the limiting ring (11) is movably connected to the limiting groove (32).

Images