Sealing device of concrete pipe connector

Abstract

The utility model belongs to the technical field of concrete pipes, and particularly relates to a sealing device of a concrete pipe connector, which comprises a left side pipe and a right side pipe, a connecting device is arranged at the joint of the left side pipe and the right side pipe, a sealing device is arranged on the right side of the connecting device, and the sealing device comprises a sealing mechanism and a connecting mechanism. According to the sealing device for the concrete pipe connector, a right side pipe is inserted into the connector, then the right side pipe is rotated, a clamping block and a limiting block coincide, and therefore the right side pipe is fixed into the connector through the limiting block, connection of the left side pipe and the right side pipe is achieved, and pipeline connection is more convenient and faster; when water seepage occurs at the pipeline joint, water flows to the water absorption expansion water stop strip to be absorbed, the water absorption expansion water stop strip absorbs water and expands towards the two sides, the lower end of the water absorption expansion water stop strip extrudes the rubber pad, the rubber pad is connected with the outer surface of the right side pipe more tightly, and further water seepage is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of concrete pipes, in particular to a sealing device for a concrete pipe interface. Background Art

[0002] Concrete pipes are pipes made of concrete or reinforced concrete, used to transport fluids such as water, oil, and gas. In the existing concrete pipe docking process, wire mesh tape needs to be added, that is, the interface is taped with mortar after the wire mesh is placed. First, the flat end of the concrete pipe is roughened, the polymer waterproofing membrane is cut, and the adhesive is a cement slurry made by mixing water, 107 glue and cement; then the flat concrete pipe is arranged in place according to the laying-out position, the polymer waterproofing membrane is passed through the bottom of the pipe at the interface, and the cement slurry is poured to the connection surface of the membrane and the pipe, and then one end of the membrane is glued to the pipe with cement slurry, and the other end is pressed on it; finally, a layer of polymer waterproofing membrane is pasted. The above-mentioned concrete pipe docking method is too complicated to operate, and after docking, it is necessary to wait for the mortar and other materials to dry before the concrete pipe can achieve a good sealing effect.

[0003] For example, Chinese patent announcement No. CN210484906U discloses a sealing device for a concrete pipe interface. When in use, the staff must first insert the mounting plate into the mounting groove, then drive the slider to slide and insert it into the opening of the mounting plate to limit the mounting plate from being separated from the mounting groove, and complete the installation of the mounting plate. During the docking process of two concrete pipes, the block on the spring plate contacts the outer peripheral surface of the connecting ring, and the spring plate bends away from the connecting ring. When the block passes through the slot, the block is driven to be inserted into the slot due to the elastic force of the spring plate, and at the same time, the plug on one concrete pipe is inserted into the slot of another concrete pipe, and the rubber pad on the plug is embedded in the embedded groove on the bottom wall of the slot.

[0004] However, the sealing device of the concrete pipe interface in the above application connects the pipe by means of a clamping connection, which is not tight enough. When the water flow is too large, water leakage and seepage may occur. Therefore, there are certain limitations.

[0005] For this reason, we urgently need to provide a sealing device for a concrete pipe interface. Utility Model Content

[0006] The purpose of the utility model is to provide a sealing device for a concrete pipe interface to solve the problem that the sealing device for a concrete pipe interface proposed in the above-mentioned background technology connects the pipes by means of a clamping connection, and the connection is not tight enough. When the water flow is too large, water leakage and seepage may occur.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a sealing device for a concrete pipe interface, comprising a left-side pipe and a right-side pipe, the left end of the right-side pipe being clamped to the right end of the left-side pipe, a connecting device being provided at the connection between the left-side pipe and the right-side pipe, and a sealing device being provided on the right side of the connecting device.

[0008] The connecting device includes a connecting head, a waterproof sealing ring, a limit block, and a clamping block. The connecting head is fixedly connected to the right end of the left tube, and the waterproof sealing ring is fixedly connected to the inner left side of the connecting head. The waterproof sealing ring is provided to avoid water seepage and leakage at the connection between the left tube and the right tube. The six limit blocks are ring-shaped and fixedly connected to the inner right side of the connecting head, and the six clamping blocks are ring-shaped and fixedly connected to the left end of the right tube.

[0009] A further improvement is that the waterproof sealing ring is made of rubber, the limit block and the clamping block are of the same size, the right tube is inserted into the interior of the connecting head, and then the right tube is rotated so that the clamping block overlaps with the limit block, so that the right tube is fixed inside the connecting head through the limit block, thereby realizing the connection between the left tube and the right tube, which is more convenient and quick.

[0010] A further improvement is that the sealing device comprises a sealing mechanism and a connecting mechanism, the sealing mechanism is arranged at the right end of the connecting head, and the connecting mechanism is arranged above the sealing mechanism.

[0011] The sealing mechanism includes a sealing block, a telescopic spring, a water-absorbing and swelling waterstop strip, and a rubber pad. The sealing block is a U-shaped structure and is fixedly connected to the upper right end of the connecting head. The telescopic spring is arranged inside the top of the sealing block. The water-absorbing and swelling waterstop strip is fixedly connected to the bottom of the telescopic spring. The rubber pad is fixedly connected to the bottom of the water-absorbing and swelling waterstop strip. The rubber pad is arranged to be tightly attached to the outer surface of the right side pipe, thereby further avoiding water seepage and leakage at the pipeline connection.

[0012] A further improvement is that a mounting groove is opened inside the top of the sealing block, the top of the telescopic spring is fixedly connected to the top wall of the mounting groove, and the water-absorbing and expanding waterstop strip is slidably connected to the inside of the mounting groove. When water seepage occurs at the pipe connection, water flows to the water-absorbing and expanding waterstop strip and is absorbed by the water-absorbing and expanding waterstop strip. The water-absorbing and expanding waterstop strip absorbs water and expands, thereby expanding to both sides. The lower end thereof squeezes the rubber pad to make it more tightly connected to the outer surface of the right tube to avoid further water seepage, and the upper end thereof squeezes the telescopic spring to avoid excessive squeezing of the rubber pad by the lower end of the water-absorbing and expanding waterstop strip, thereby causing damage to the outer surface of the right tube.

[0013] A further improvement is that there are two groups of sealing mechanisms, which are respectively fixedly connected to the upper and lower sides of the right end of the connector, and the two groups of sealing mechanisms cooperate with each other to achieve pipeline closure, thereby better improving the sealing effect and avoiding water seepage.

[0014] A further improvement is that the connecting mechanism includes a connecting block, a fixing bolt, and a nut. The two groups of connecting blocks are fixedly connected to the left and right sides of the sealing block in pairs, the two fixing bolts are rotatably connected to the inside of the two groups of connecting blocks, and the two nuts are threadedly connected to the bottom of the two fixing bolts.

[0015] A further improvement is that threaded holes are respectively opened through the centers of the upper surfaces of the two groups of connecting blocks, and the fixing bolts are bolted to the inside of the threaded holes. The fixing bolts are screwed into the inside of the threaded holes and then matched with nuts to firmly connect the two sealing blocks together.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] 1. The sealing device of the concrete pipe interface inserts the right pipe into the interior of the connector, and then rotates the right pipe so that the clamping block overlaps with the limit block, thereby fixing the right pipe in the interior of the connector through the limit block, thereby realizing the connection between the left pipe and the right pipe, making the pipeline connection more convenient and quick.

[0018] 2. The sealing device of the concrete pipe interface, when water seepage occurs at the pipe connection, the water flows to the water-absorbing and expanding waterstop strip and is absorbed. The water-absorbing and expanding waterstop strip absorbs water and expands to both sides. The lower end thereof squeezes the rubber pad to make it more tightly connected to the outer surface of the right pipe to avoid further water seepage. The upper end thereof squeezes the telescopic spring to prevent the lower end of the water-absorbing and expanding waterstop strip from squeezing the rubber pad excessively and causing damage to the outer surface of the right pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a front view structural schematic diagram of the utility model;

[0020] Figure 2 This is a schematic diagram of the disassembly structure of the connection device of the utility model;

[0021] Figure 3 This is a schematic cross-sectional structural diagram of the sealing device of the utility model;

[0022] Figure 4 It is a schematic diagram of the disassembled structure of the sealing device of the utility model.

[0023] In the figure: 1, left side tube; 2, right side tube; 301, connector; 302, waterproof sealing ring; 303, limit block; 304, clamping block; 401, sealing block; 402, telescopic spring; 403, water absorption expansion water stop strip; 404, rubber pad; 405, connecting block; 406, fixing bolt; 407, nut. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-Figure 4 , the utility model provides a technical solution:

[0026] Embodiment 1:

[0027] A sealing device for a concrete pipe interface comprises a left pipe 1 and a right pipe 2, wherein the left end of the right pipe 2 is clamped to the right end of the left pipe 1, and a connecting device is provided at the connection between the left pipe 1 and the right pipe 2.

[0028] The connection device includes a connector 301, a waterproof seal ring 302, a limit block 303, and a clamping block 304. The connector 301 is fixedly connected to the right end of the left tube 1, and the waterproof seal ring 302 is fixedly connected to the left side of the inside of the connector 301. The waterproof seal ring 302 is provided to prevent water seepage and leakage at the connection between the left tube 1 and the right tube 2. Six limit blocks 303 are annular and fixedly connected to the right side of the inside of the connector 301, and six clamping blocks 304 are annular and fixedly connected to the left end of the right tube 2. The waterproof seal ring 302 is made of rubber, and the limit block 303 and the clamping block 304 are the same size.

[0029] When in use, the right tube 2 is inserted into the connector 301 at the right end of the left tube 1, and then the right tube 2 is rotated, thereby driving the clamping block 304 to rotate, so that the clamping block 304 coincides with the limiting block 303, and the right tube 2 is fixed inside the connector 301 through the limiting block 303, thereby realizing the connection between the left tube 1 and the right tube 2, making the pipeline connection more convenient and quick.

[0030] Embodiment 2:

[0031] On the basis of the first embodiment, a sealing device is arranged on the right side of the connecting device, the sealing device comprises a sealing mechanism and a connecting mechanism, the sealing mechanism is arranged at the right end of the connecting head 301, and the connecting mechanism is arranged above the sealing mechanism.

[0032] The sealing mechanism includes a sealing block 401, a telescopic spring 402, a water-absorbing and swelling waterstop strip 403, and a rubber pad 404. The sealing block 401 is a U-shaped structure, fixedly connected to the upper right end of the connector 301, the telescopic spring 402 is arranged inside the top of the sealing block 401, the water-absorbing and swelling waterstop strip 403 is fixedly connected to the bottom of the telescopic spring 402, and the rubber pad 404 is fixedly connected to the bottom of the water-absorbing and swelling waterstop strip 403. The rubber pad 404 is arranged to be tightly attached to the outer surface of the right side pipe 2, thereby further avoiding water seepage and leakage at the pipe connection.

[0033] An installation groove is provided inside the top of the sealing block 401, and the top of the telescopic spring 402 is fixedly connected to the top wall of the installation groove, and the water-absorbing and expanding waterstop strip 403 is slidably connected to the inside of the installation groove. When water seepage occurs at the pipe connection, water flows to the water-absorbing and expanding waterstop strip 403 and is absorbed. The water-absorbing and expanding waterstop strip 403 absorbs water and expands, thereby expanding to both sides. The lower end thereof squeezes the rubber pad 404, making it more tightly connected to the outer surface of the right-side tube 2 to avoid further water seepage. The upper end thereof squeezes the telescopic spring 402 to prevent the lower end of the water-absorbing and expanding waterstop strip 403 from squeezing the rubber pad 404 excessively, thereby causing damage to the outer surface of the right-side tube 2.

[0034] There are two sets of sealing mechanisms, which are fixedly connected to the upper and lower sides of the right end of the connector 301 respectively. The two sets of sealing mechanisms cooperate with each other to achieve pipeline closure, thereby better improving the sealing effect and avoiding water seepage.

[0035] The connecting mechanism includes a connecting block 405, a fixing bolt 406, and a nut 407. Two groups of connecting blocks 405 are fixedly connected to the left and right sides of the sealing block 401 in pairs. The two fixing bolts are rotatably connected to the inside of the two groups of connecting blocks 405, and the two nuts 407 are threadedly connected to the bottom of the two fixing bolts 406.

[0036] The centers of the upper surfaces of the two sets of connection blocks 405 are respectively penetrated with threaded holes, and fixing bolts 406 are bolted to the inside of the threaded holes. The fixing bolts 406 are screwed into the inside of the threaded holes and then matched with nuts 407, so that the two sealing blocks 401 are firmly connected together.

[0037] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

Claims

1. A sealing device for a concrete pipe joint, comprising a left pipe (1) and a right pipe (2), wherein the left end of the right pipe (2) is clamped to the right end of the left pipe (1), characterized in that: A connecting device is provided at the connection between the left tube (1) and the right tube (2), and a sealing device is provided on the right side of the connecting device; The connection device comprises a connection head (301), a waterproof sealing ring (302), a limit block (303), and a clamping block (304); the connection head (301) is fixedly connected to the right end of the left tube (1); the waterproof sealing ring (302) is fixedly connected to the left inner side of the connection head (301); six limit blocks (303) are annular and respectively fixedly connected to the right inner side of the connection head (301); and six clamping blocks (304) are annular and respectively fixedly connected to the left end of the right tube (2).

2. A sealing device for a concrete pipe joint according to claim 1, characterized in that: The waterproof sealing ring (302) is made of rubber, and the limiting block (303) and the clamping block (304) are of the same size.

3. A sealing device for a concrete pipe joint according to claim 2, characterized in that: The sealing device comprises a sealing mechanism and a connecting mechanism, wherein the sealing mechanism is arranged at the right end of the connecting head (301), and the connecting mechanism is arranged above the sealing mechanism; The sealing mechanism comprises a sealing block (401), a telescopic spring (402), a water-absorbing and swelling water-stopping strip (403), and a rubber pad (404); the sealing block (401) is a U-shaped structure, fixedly connected to the upper right end of the connector (301); the telescopic spring (402) is arranged inside the top of the sealing block (401); the water-absorbing and swelling water-stopping strip (403) is fixedly connected to the bottom of the telescopic spring (402); and the rubber pad (404) is fixedly connected to the bottom of the water-absorbing and swelling water-stopping strip (403).

4. A sealing device for a concrete pipe joint according to claim 3, characterized in that: A mounting groove is provided inside the top of the sealing block (401), the top of the telescopic spring (402) is fixedly connected to the top wall of the mounting groove, and the water-absorbing swelling water stop strip (403) is slidably connected to the inside of the mounting groove.

5. A sealing device for a concrete pipe joint according to claim 4, characterized in that: There are two groups of sealing mechanisms, which are respectively fixedly connected to the upper and lower sides of the right end of the connector (301).

6. A sealing device for a concrete pipe joint according to claim 5, characterized in that: The connection mechanism comprises a connection block (405), a fixing bolt (406), and a nut (407); two groups of the connection blocks (405) are fixedly connected to the left and right sides of the sealing block (401) in pairs; the two fixing bolts are rotatably connected to the inside of the two groups of connection blocks (405); and the two nuts (407) are threadedly connected to the bottoms of the two fixing bolts (406).

7. A sealing device for a concrete pipe joint according to claim 6, characterized in that: The centers of the upper surfaces of the two groups of connection blocks (405) are respectively penetrated with threaded holes, and the fixing bolts (406) are bolted to the inside of the threaded holes.

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