Overflow pipe connecting structure for concave green land

Abstract

The utility model relates to the technical field of overflow pipe connection, in particular to an overflow pipe connecting structure for a concave green land, which comprises two overflow pipe main bodies, the outer walls of the two overflow pipe main bodies are fixedly connected with limiting rings, and the outer walls of the two overflow pipe main bodies are jointly provided with a connecting mechanism. The two limiting rings drive the two overflow pipe main bodies to move in the opposite directions, so that the two limiting rings and the two overflow pipe main bodies extrude the sealing gasket, and then the two overflow pipe main bodies and the connecting cylinder are sealed through mutual cooperation of the sealing gasket, the two limiting rings and the two overflow pipe main bodies. A plurality of screws are matched with threaded grooves to drive a plurality of limiting rods to move in the opposite directions, the limiting rods enter a plurality of first storage grooves correspondingly, then the fixing state between the limiting rods and two limiting rings is relieved, and then two overflow pipe bodies are pulled out from the two ends of a connecting cylinder; and therefore, the two overflow pipe main bodies can be conveniently and quickly detached from the connecting cylinder.

Description

TECHNICAL FIELD

[0001] The utility model relates to overflow pipe connecting technical field, concretely is a kind of overflow pipe connecting structure for sunken green. BACKGROUND

[0002] Low impact development concept is the stormwater management and non-point source pollution treatment technology developed in the late 1990s. It aims to control the runoff and pollution generated by stormwater through decentralized and small-scale source control, so that the development area is as close to natural hydrological cycle as possible. Common low impact development facilities include ecological grassed swales, sunken green, rainwater garden, green roof, underground infiltration, permeable pavement, etc.

[0003] Sunken green is a low impact development technology, which is a general term for rainwater management systems with green height lower than the surrounding ground height, and is divided into narrow sense sunken green and broad sense sunken green. The narrow sense sunken green refers to the green below the surrounding road or ground by less than 200mm, and the structure is divided into: water accumulation layer, vegetation layer, original soil layer. The broad sense sunken green refers to the green with certain storage volume for storage of rainwater runoff, including wet pond, rainwater wetland, etc. Sunken green achieves the purpose of regulating surface runoff, reducing runoff pollutants and supplementing groundwater through penetration, retention and adsorption. Due to its strong adaptability and combination with urban landscape, sunken green is widely used in low impact development construction. When connecting and installing overflow pipes in sunken green, overflow pipe connecting structure is needed to connect and fix the overflow pipes.

[0004] The existing overflow pipe connecting structure for sunken green is basically composed of a connecting pipe. When in use, the opposite ends of two overflow pipes are inserted into the connecting pipe, and adhesive glue is applied to the inner wall of the connecting pipe and the outer wall of the opposite ends of the two overflow pipes. The connecting pipe and the two overflow pipes are connected and fixed by the adhesive glue. However, after a long time of use, the connecting pipe and the two overflow pipes connected and fixed by the adhesive glue cannot be conveniently and quickly disassembled, and the connecting pipe and the two overflow pipes are easily damaged during disassembly, which makes the connecting pipe and the two overflow pipes unable to be used again. It is inconvenient to use. When applying the adhesive glue, it is usually applied manually. It is difficult to uniformly apply the adhesive glue to the inner wall of the connecting pipe and the outer wall of the two overflow pipes, which may cause the connecting pipe and the two overflow pipes to be not firmly connected, and further cause the connecting pipe and the two overflow pipes to leak. UTILITY MODEL CONTENTS

[0005] The purpose of this utility model is to provide an overflow pipe connection structure for recessed green spaces, which is characterized by easy disassembly of the connecting pipe and the two overflow pipes, preventing damage to the connecting pipe and the two overflow pipes, enabling the connecting pipe and the two overflow pipes to be reused, and providing a firm and sealed connection between the connecting pipe and the two overflow pipes to prevent water leakage between the connecting pipe and the two overflow pipes.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an overflow pipe connection structure for recessed green spaces, comprising two overflow pipe bodies, with limit rings fixedly connected to the outer walls of both overflow pipe bodies, and a connection mechanism being provided on the outer walls of both overflow pipe bodies.

[0007] The connecting mechanism includes a connecting cylinder sleeved on the outer wall of the two overflow pipe bodies. A sealing gasket with an I-shaped cross-section is fixedly connected to the inner wall of the connecting cylinder. The opposite ends of the two overflow pipe bodies extend into the grooves opened on the left and right sides of the sealing gasket. The inner wall of the connecting cylinder has multiple arrayed first storage slots. Each of the multiple first storage slots is slidably connected to a limit rod. The other end of the limit rod is provided with a threaded groove. A screw rod that is threadedly connected to the threaded groove is rotatably connected to the inside of the first storage slot.

[0008] Preferably, the outer wall of the connecting cylinder is provided with an mounting annular groove, and the left and right inner sidewalls of the mounting annular groove are provided with driving annular grooves. Multiple screws located on the same side are grouped together. One end of each group of screws extends into the interior of two driving annular grooves and is fixedly connected to a driven gear. A rotating cylinder is sleeved inside the mounting annular groove. The left and right sidewalls of the rotating cylinder are fixedly connected with extension cylinders that extend into the interior of two driving annular grooves respectively. The opposite sidewalls of the two extension cylinders are provided with teeth that mesh with the two groups of driven gears.

[0009] Preferably, multiple arrayed limiting grooves are provided on both sides of the outer wall of the rotating cylinder, and a second receiving groove is provided on the upper end of the left and right inner sidewalls of the mounting annular groove. The interior of the second receiving groove is slidably connected with a limiting strip that matches the multiple limiting grooves through a limiting slide groove and a limiting slider.

[0010] Preferably, the opposite sidewalls of the two limiting rings are both configured as inclined structures, and one end of the limiting rod is configured as an arc-shaped structure that matches the inclined portion of the limiting ring.

[0011] Preferably, the sealing gasket is made of natural rubber.

[0012] Preferably, the limiting groove and the limiting slider are in close sliding connection.

[0013] Preferably, a push plate is fixedly connected to the upper end face of the limiting strip.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] Two limiting rings drive the two overflow pipe bodies to move in opposite directions, causing the two limiting rings and the two overflow pipe bodies to squeeze the sealing gasket. Then, through the mutual cooperation between the sealing gasket and the two limiting rings and the two overflow pipe bodies, the two overflow pipe bodies are sealed to the connecting cylinder, preventing water leakage between the connecting cylinder and the two overflow pipe bodies.

[0016] The rotating drum is rotated in the opposite direction. The teeth on the opposite sidewalls of the two extension drums drive multiple driven gears to rotate in the opposite direction. The driven gears drive multiple screws to rotate in the opposite direction. The screws, in conjunction with the threaded grooves, drive multiple limiting rods to move in opposite directions, so that the multiple limiting rods enter multiple first receiving slots. This releases the fixing state between the multiple limiting rods and the two limiting rings. Then, the two overflow pipe bodies are pulled out from both ends of the connecting cylinder, which facilitates the quick and easy disassembly of the two overflow pipe bodies from the connecting cylinder, avoiding damage to the two overflow pipe bodies and the connecting cylinder, and allowing the two overflow pipe bodies and the connecting cylinder to be reused. Attached Figure Description

[0017] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a front cross-sectional view of the present invention.

[0020] Figure 3 This utility model Figure 2 Enlarged structural diagram of part a;

[0021] Figure 4 This is a three-dimensional structural diagram of the sealing gasket of this utility model.

[0022] The markings in the diagram are: 1. Overflow pipe body; 2. Limiting ring; 3. Connecting cylinder; 4. Sealing gasket; 5. First receiving groove; 6. Limiting rod; 7. Threaded groove; 8. Screw; 9. Mounting annular groove; 10. Driving annular groove; 11. Driven gear; 12. Rotary cylinder; 13. Extension cylinder; 14. Limiting groove; 15. Second receiving groove; 16. Limiting strip; 17. Push plate. Detailed Implementation

[0023] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present invention and should not be construed as limiting the scope of protection of the present invention.

[0024] It should be noted that, unless otherwise stated, the technical or scientific terms used in this application shall have the ordinary meaning as understood by one of ordinary skill in the art to which this utility model pertains.

[0025] Please see Figures 1 to 4 An overflow pipe connection structure for a sunken green space includes two overflow pipe bodies 1, with limit rings 2 fixedly connected to the outer walls of both overflow pipe bodies 1, and a connection mechanism is provided on the outer walls of both overflow pipe bodies 1.

[0026] The connecting mechanism includes a connecting cylinder 3 sleeved on the outer wall of two overflow pipe bodies 1. A sealing gasket 4 with an I-shaped cross-section is fixedly connected to the inner wall of the connecting cylinder 3. The opposite ends of the two overflow pipe bodies 1 extend into the grooves opened on the left and right sides of the sealing gasket 4. Multiple arrayed first receiving grooves 5 are opened on the inner wall of the connecting cylinder 3. Limiting rods 6 are slidably connected inside the multiple first receiving grooves 5. A threaded groove 7 is opened at the other end of the limiting rod 6. A screw 8 that is threadedly connected to the threaded groove 7 is rotatably connected inside the first receiving groove 5.

[0027] In this embodiment: When in use, the opposite ends of the two overflow pipe bodies 1 are inserted into the connecting cylinder 3 from both ends of the connecting cylinder 3, so that the opposite ends of the two overflow pipe bodies 1 extend into the grooves opened on the left and right sides of the sealing gasket 4 and abut against the inner walls of the grooves opened on the left and right sides of the sealing gasket 4. At the same time, the two overflow pipe bodies 1 drive the two limiting rings 2 to abut against the left and right sides of the sealing gasket 4 respectively. At this time, the two limiting rings 2 move between the two sets of limiting rods 6.

[0028] Then, multiple screws 8 rotate, and multiple screws 8, in conjunction with threaded grooves 7, drive multiple limiting rods 6 to move in opposite directions, so that multiple limiting rods 6 move out of multiple first receiving grooves 5 and abut against the inclined surface of limiting ring 2. Then, multiple limiting rods 6 continue to move. Since the opposite side walls of the two limiting rings 2 are both set as inclined structures, and one end of the limiting rod 6 is set as an arc structure that matches the inclined surface of the limiting ring 2, the mutual cooperation between the arc structure of the limiting rod 6 and the inclined structure of the limiting ring 2 can push the two limiting rings 2 to move in opposite directions. At the same time, the two limiting rings 2 drive the two overflow pipe bodies 1 to move in opposite directions, so that the two limiting rings 2 and the two overflow pipe bodies 1 squeeze the sealing gasket 4. Then, through the mutual cooperation between the sealing gasket 4 and the two limiting rings 2 and the two overflow pipe bodies 1, the two overflow pipe bodies 1 are sealed with the connecting cylinder 3 to prevent water leakage between the connecting cylinder 3 and the two overflow pipe bodies 1.

[0029] After the two limiting rings 2 and the two overflow pipe bodies 1 are tightly abutted and sealed with the sealing gasket 4, the multiple screws 8 stop rotating and are locked, so that the multiple limiting rods 6 are positioned on both sides of the two limiting rings 2, and then the connecting cylinder 3 and the two overflow pipe bodies 1 are fixed by the mutual cooperation between the two limiting rings 2 and the multiple limiting rods 6.

[0030] When it is necessary to disassemble the connecting cylinder 3 and the two overflow pipe bodies 1, the multiple screws 8 are rotated in the opposite direction. The multiple screws 8, in conjunction with the threaded grooves 7, drive the multiple limiting rods 6 to move in opposite directions, so that the multiple limiting rods 6 enter the multiple first receiving grooves 5 respectively, thereby releasing the fixed state between the multiple limiting rods 6 and the two limiting rings 2. Then, the two overflow pipe bodies 1 are pulled out from both ends of the connecting cylinder 3, so as to facilitate and quickly disassemble the two overflow pipe bodies 1 from the connecting cylinder 3, avoid damage to the two overflow pipe bodies 1 and the connecting cylinder 3, and reuse the two overflow pipe bodies 1 and the connecting cylinder 3.

[0031] As a technical optimization of this utility model, the outer wall of the connecting cylinder 3 is provided with an mounting annular groove 9, and the left and right inner side walls of the mounting annular groove 9 are provided with driving annular grooves 10. Multiple screws 8 located on the same side are grouped together. One end of each group of screws 8 extends into the interior of the two driving annular grooves 10 and is fixedly connected to a driven gear 11. A rotating cylinder 12 is sleeved inside the mounting annular groove 9. The left and right side walls of the rotating cylinder 12 are fixedly connected with extension cylinders 13 that extend into the interior of the two driving annular grooves 10 respectively. The opposite side walls of the two extension cylinders 13 are provided with teeth that mesh with the two groups of driven gears 11.

[0032] In this embodiment: Rotating the rotating drum 12, the teeth on the opposite sidewalls of the rotating drum 12 and the two extension drums 13 respectively drive the multiple driven gears 11 to rotate, and the multiple driven gears 11 respectively drive the multiple screws 8 to rotate.

[0033] As a technical optimization of this utility model, multiple arrayed limiting grooves 14 are provided on both sides of the outer wall of the rotating cylinder 12, and a second storage groove 15 is provided on the upper end of the left and right inner side walls of the mounting annular groove 9. The interior of the second storage groove 15 is slidably connected with a limiting strip 16 that matches the multiple limiting grooves 14 through a limiting slide groove and a limiting slider.

[0034] In this embodiment: the rotating drum 12 can be locked by the mutual cooperation between the limiting groove 14 and the limiting strip 16, and the screw 8 can be locked by the transmission between the extension tube 13 and the driven gear 11. The second storage groove 15 can store the limiting strip 16.

[0035] As a technical optimization of this utility model, the side walls of the two limiting rings 2 facing away from each other are both set as inclined structures, and one end of the limiting rod 6 is set as an arc-shaped structure that matches the inclined part of the limiting ring 2.

[0036] In this embodiment, the opposite sidewalls of the two limiting rings 2 are both set as inclined structures, and one end of the limiting rod 6 is set as an arc-shaped structure that matches the inclined part of the limiting ring 2. Through the mutual cooperation between the arc-shaped structure of the limiting rod 6 and the inclined structure of the limiting ring 2, the two limiting rings 2 can be pushed to move in opposite directions.

[0037] As a technical optimization of this utility model, the sealing gasket 4 is made of natural rubber.

[0038] In this embodiment, the sealing gasket 4 is made of natural rubber, which has good elasticity, wear resistance and tear resistance, and can adapt to a certain degree of pipe deformation to ensure the sealing effect.

[0039] As a technical optimization of this utility model, the limiting groove and the limiting slider are tightly slidably connected.

[0040] In this embodiment, the limiting groove and the limiting slider are tightly slidably connected, allowing the limiting strip 16 to be suspended at any position within the second storage groove 15.

[0041] As a technical optimization of this utility model, a push plate 17 is fixedly connected to the upper end face of the limiting strip 16.

[0042] In this embodiment, the push plate 17 facilitates the movement of the limiting strip 16.

[0043] Working principle: When in use, insert the opposite ends of the two overflow pipe bodies 1 into the connecting cylinder 3 from both ends of the connecting cylinder 3, so that the opposite ends of the two overflow pipe bodies 1 extend into the grooves opened on the left and right sides of the sealing gasket 4 and abut against the inner walls of the grooves opened on the left and right sides of the sealing gasket 4. At the same time, the two overflow pipe bodies 1 drive the two limiting rings 2 to abut against the left and right sides of the sealing gasket 4 respectively. At this time, the two limiting rings 2 move between the two sets of limiting rods 6.

[0044] Then, rotating the drum 12 causes the teeth on the opposite sidewalls of the two extension drums 13 to drive multiple driven gears 11 to rotate. These driven gears 11 then drive multiple screws 8 to rotate. The screws 8, in conjunction with the threaded grooves 7, move multiple limiting rods 6 in opposite directions, causing them to move out of the multiple first receiving slots 5 and abut against the inclined surfaces of the limiting rings 2. The limiting rods 6 then continue to move. Because the opposite sidewalls of the two limiting rings 2 are both inclined, one end of each limiting rod 6 is positioned to be inclined with the limiting ring 2. The curved structure of the surface part matches the mutual cooperation between the curved structure of the limiting rod 6 and the inclined structure of the limiting ring 2, so that the two limiting rings 2 can be pushed to move in opposite directions. At the same time, the two limiting rings 2 drive the two overflow pipe bodies 1 to move in opposite directions, so that the two limiting rings 2 and the two overflow pipe bodies 1 squeeze the sealing gasket 4. Then, through the mutual cooperation between the sealing gasket 4 and the two limiting rings 2 and the two overflow pipe bodies 1, the two overflow pipe bodies 1 and the connecting cylinder 3 are sealed, so as to prevent water leakage between the connecting cylinder 3 and the two overflow pipe bodies 1.

[0045] After the two limiting rings 2 and the two overflow pipe bodies 1 are tightly abutted and sealed with the sealing gasket 4, the limiting strip 16 is moved by the push plate 17, so that the limiting strip 16 enters the corresponding limiting groove 14. Then, through the mutual cooperation between the limiting groove 14 and the limiting strip 16, the rotating drum 12 is locked. Then, through the transmission between the extension cylinder 13 and the driven gear 11, the multiple screws 8 are locked, so that the multiple limiting rods 6 are positioned on both sides of the two limiting rings 2. Then, through the mutual cooperation between the two limiting rings 2 and the multiple limiting rods 6, the connecting cylinder 3 and the two overflow pipe bodies 1 are fixed.

[0046] When it is necessary to disassemble the connecting cylinder 3 and the two overflow pipe bodies 1, rotate the rotating cylinder 12 in the opposite direction. The teeth on the opposite side walls of the rotating cylinder 12 and the two extension cylinders 13 drive multiple driven gears 11 to rotate in the opposite direction. The multiple driven gears 11 drive multiple screws 8 to rotate in the opposite direction. The multiple screws 8, in conjunction with the threaded grooves 7, drive multiple limiting rods 6 to move in opposite directions, so that the multiple limiting rods 6 enter multiple first receiving grooves 5, thereby releasing the fixed state between the multiple limiting rods 6 and the two limiting rings 2. Then, pull the two overflow pipe bodies 1 out from both ends of the connecting cylinder 3, so as to facilitate and quickly disassemble the two overflow pipe bodies 1 from the connecting cylinder 3, avoid damage to the two overflow pipe bodies 1 and the connecting cylinder 3, and reuse the two overflow pipe bodies 1 and the connecting cylinder 3.

[0047] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An overflow pipe connection structure for a sunken green space, comprising two overflow pipe bodies (1), characterized in that: Limiting rings (2) are fixedly connected to the outer walls of both overflow pipe bodies (1), and a connecting mechanism is provided on the outer walls of both overflow pipe bodies (1); The connecting mechanism includes a connecting cylinder (3) sleeved on the outer wall of the two overflow pipe bodies (1). The inner wall of the connecting cylinder (3) is fixedly connected with a sealing gasket (4) with an I-shaped cross section. The opposite ends of the two overflow pipe bodies (1) extend into the grooves opened on the left and right sides of the sealing gasket (4). The inner wall of the connecting cylinder (3) is provided with a plurality of arrayed first receiving grooves (5). The interior of each of the plurality of first receiving grooves (5) is slidably connected with a limiting rod (6). The other end of the limiting rod (6) is provided with a threaded groove (7). The interior of the first receiving groove (5) is rotatably connected with a screw (8) threadedly connected to the threaded groove (7).

2. The overflow pipe connection structure for a recessed green space according to claim 1, characterized in that: The outer wall of the connecting cylinder (3) is provided with an installation annular groove (9), and the left and right inner walls of the installation annular groove (9) are provided with driving annular grooves (10). Multiple screws (8) located on the same side are grouped together. One end of each group of screws (8) extends into the interior of the two driving annular grooves (10) and is fixedly connected to a driven gear (11). A rotating cylinder (12) is sleeved inside the installation annular groove (9). The left and right side walls of the rotating cylinder (12) are fixedly connected with extension cylinders (13) that extend into the interior of the two driving annular grooves (10). The opposite side walls of the two extension cylinders (13) are provided with teeth that mesh with the two groups of driven gears (11).

3. The overflow pipe connection structure for a sunken green space according to claim 2, characterized in that: Multiple arrayed limiting grooves (14) are provided on both sides of the outer wall of the rotating cylinder (12). A second receiving groove (15) is provided on the upper end of the left and right inner side walls of the mounting annular groove (9). The interior of the second receiving groove (15) is slidably connected with a limiting strip (16) that matches the multiple limiting grooves (14) through a limiting slide groove and a limiting slider.

4. The overflow pipe connection structure for a sunken green space according to claim 1, characterized in that: The opposite sidewalls of the two limiting rings (2) are both set as inclined structures, and one end of the limiting rod (6) is set as an arc-shaped structure that matches the inclined part of the limiting ring (2).

5. The overflow pipe connection structure for recessed green spaces according to claim 1, characterized in that: The sealing gasket (4) is made of natural rubber.

6. The overflow pipe connection structure for a recessed green space according to claim 3, characterized in that: The limiting groove and the limiting slider are tightly slidably connected.

7. The overflow pipe connection structure for a sunken green space according to claim 3, characterized in that: A push plate (17) is fixedly connected to the upper end face of the limiting strip (16).

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