Drain pipe glue injection connecting structure

Abstract

A kind of glue injection connecting structure of drain pipe, including first drain pipe and second drain pipe, the first drain pipe is equipped with male joint, the second drain pipe is equipped with female joint, after the male joint is inserted female joint, the mating cavity between male joint outer surface and female joint inner surface is formed, the mating cavity is equipped with two mutually spaced and used for installing mounting groove of rubber ring, two rubber rings form glue injection chamber, the glue injection chamber is divided into left glue chamber and right glue chamber by baffle, the left glue chamber is equipped with air outlet, the right glue chamber is equipped with glue injection hole, the left glue chamber and the right glue chamber are communicated, the glue injection chamber is filled with connecting glue, the utility model is connected with air outlet on glue injection chamber, connecting glue is injected into glue injection chamber from glue injection hole at the same time, air inside glue injection chamber will be extruded from exhaust hole, significantly improve later curing effect.

Description

Technical Field

[0001] This utility model belongs to the field of drainage pipe technology, specifically relating to a drainage pipe glue injection connection structure. Background Technology

[0002] Referring to CN201620768849.8, a potting-type insulating joint is designed to address the problems of poor insulation performance and weak corrosion resistance in existing insulating joints. It includes an outer sleeve and an inner sleeve, with the inner sleeve extending into the outer sleeve. The rear end of the outer sleeve is connected to the outer wall of the inner sleeve via an annular connecting plate. The outer wall of the inner sleeve has two rubber ring mounting grooves, each containing a rubber ring. The outer wall of the inner sleeve also has several annular insulating material mounting grooves, as does the inner wall of the outer sleeve. The space formed between the two rubber rings and the outer and inner walls of the inner and outer sleeves is an insulating material mounting chamber containing insulating material. The outer sleeve has a potting port and a riser. Anti-corrosion layers made of epoxy powder are applied to the inner and outer walls of both the outer and inner sleeves. Test rings are provided on both the outer and inner sleeves. The advantages are good insulation performance and strong corrosion resistance.

[0003] However, this technology only designs a dispensing port with dispensing function, without designing a path to guide air exhaust. During the dispensing process, air cannot be effectively guided, which can easily cause air bubbles to form, resulting in poor curing effect. Utility Model Content

[0004] In order to overcome at least some of the shortcomings of the prior art, the present invention provides a drainage pipe glue injection connection structure.

[0005] The technical solution provided by this utility model is as follows: a drain pipe glue injection connection structure, including a first drain pipe and a second drain pipe. The first drain pipe is provided with a male connector, and the second drain pipe is provided with a female connector. After the male connector is inserted into the female connector, a mating cavity is formed between the outer surface of the male connector and the inner surface of the female connector. The mating cavity is provided with two mutually spaced mounting grooves for installing rubber rings. A glue injection chamber is formed between the two rubber rings. The glue injection chamber is divided into a left glue chamber and a right glue chamber by a baffle. The left glue chamber is provided with an air vent, and the right glue chamber is provided with a glue injection hole. The left glue chamber and the right glue chamber are connected. The glue injection chamber is filled with connecting glue.

[0006] Furthermore, the baffle is positioned axially along the first drain pipe within the glue injection chamber.

[0007] Furthermore, the injection hole and the vent hole are located on the left and right sides of the baffle, respectively.

[0008] Furthermore, the baffle is fixedly connected to the upper surface of the female connector.

[0009] Furthermore, the mounting groove includes at least one first mounting groove and at least one second mounting groove, wherein the first mounting groove is located on the outer surface of the male connector and the second mounting groove is located on the inner surface of the female connector.

[0010] Furthermore, the inner wall of the glue injection chamber is provided with two external expansion grooves, which are located on the outer surface of the male connector and the inner surface of the female connector, respectively.

[0011] Furthermore, the inner walls of both the first and second drain pipes are fitted with fiberglass layers to enhance the structural strength of the drain pipes.

[0012] The beneficial effects of this utility model are: the utility model has an air vent connected to the glue injection chamber. When the glue is injected into the glue injection chamber through the glue injection hole, the air inside the glue injection chamber will be squeezed out through the air vent, which significantly improves the curing effect in the later stage.

[0013] Secondly, this utility model can divide the glue injection chamber into a left glue chamber and a right glue chamber using only one baffle, so that a good exhaust channel is formed between the glue injection hole and the air outlet of the glue injection chamber. The structure is simple and the assembly is convenient.

[0014] Third, the injection hole and the vent hole are close to the left and right sides of the baffle, which is convenient for production and processing, easy for drilling, and also allows the injection hole and the vent hole to be located at the ends of the left and right glue chambers respectively, so that all the gas in the injection chamber can be discharged to ensure the curing effect. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the glue injection connection structure for the drain pipe; Figure 2 This is a schematic diagram of the first and second drainage pipes; Figure 3 yes Figure 1 A sectional view; Figure 4 This is a schematic diagram of the cross-section of the glue injection connection structure of the drainage pipe; Figure 5 This is a schematic diagram of a preferred embodiment of the baffle. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0017] It should be noted that if any directional indication (such as up, down, left, right, front, back, top, bottom, inside, outside, vertical, horizontal, longitudinal, counterclockwise, clockwise, circumferential, radial, axial, etc.) is involved in the embodiments of this utility model, the directional indication is only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0018] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," such descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0019] See Figures 1 to 4 This embodiment discloses a drain pipe glue injection connection structure, including a first drain pipe 1 and a second drain pipe 2. The first drain pipe 1 is provided with a male connector 11, and the second drain pipe 2 is provided with a female connector 21. After the male connector 11 is inserted into the female connector 21, a mating cavity is formed between the outer surface of the male connector 11 and the inner surface of the female connector 21. The mating cavity is provided with two spaced-apart mounting grooves 4 for installing rubber rings 3. A glue injection chamber 6 is formed between the two rubber rings 3. The glue injection chamber 6 is divided into a left glue chamber 62 and a right glue chamber 63 by a baffle 61. The left glue chamber 62 is provided with an air vent 64, and the right glue chamber 63 is provided with a glue injection hole 65. The left glue chamber 62 and the right glue chamber 63 are connected. The glue injection chamber 6 is filled with connecting glue 7. When the connecting glue 7 is injected into the glue injection chamber 6 through the glue injection hole 65, it squeezes the air inside the glue injection chamber 6 out of the air vent, significantly improving the later curing effect. At the same time, it forms a double sealing structure with the rubber rings 3, improving the sealing performance of the drain pipe connection.

[0020] In a preferred embodiment, the glue injection chamber 6 is annular, and the left glue chamber 62 and the right glue chamber 63 have two communicating spaces. The baffle 61 blocks one of the communicating spaces, so that the annular space of the glue injection chamber 6 forms a one-way flow channel, ensuring that during the glue injection process, the connecting glue 7 can only flow unidirectionally from the glue injection hole 65 to the air outlet 64, thus ensuring that the connecting glue 7 remains in a bubble-free state during the glue injection process.

[0021] Furthermore, the baffle 61 is preferably positioned within the glue injection chamber 6 along the axial direction of the drain pipe. Of course, the baffle 61 can also be inclined in the axial direction of the drain pipe to achieve the same technical effect.

[0022] Furthermore, the baffle 61 has a rectangular sheet structure, which ensures that regardless of whether the baffle 61 is installed on the male connector 11 or the female connector 21, it can block one of the connection spaces between the left glue chamber 62 and the right glue chamber 63. When the baffle 61 is installed on the male connector 11, the installer needs to align the baffle 61 with the position between the vent hole 64 and the glue injection hole 65 during installation. For easy guidance, a groove adapted to the baffle 61 can be provided on the inner wall of the female connector 21. During installation, the installer aligns the baffle 61 with the groove and then inserts it.

[0023] Preferably, the baffle 61 is disposed on the female connector 21, which has an air vent 64 and an injection hole 65. The baffle 61 is located between the air vent 64 and the injection hole 65, so that the construction personnel do not need to consider the angle of the male connector 11 when connecting and installing.

[0024] A further preferred method is: refer to Figure 5 The inner wall of the female connector 21 is provided with a downward-facing upper half baffle, which is located between the air outlet 64 and the glue injection hole 65. The outer wall of the male connector 11 is provided with an upward-facing lower half baffle. The protrusion height of the upper and lower half baffles is greater than half the thickness of the glue injection chamber 6. When the construction personnel are installing the connector, they do not need to consider the angle of the male connector 11. After connecting the male connector 11 with the female connector 21, they rotate the male connector 11 and / or the female connector 21 so that the upper half baffle abuts against the side of the lower half baffle, thereby forming the baffle 61.

[0025] The mounting groove 4 includes at least one first mounting groove 41 and at least one second mounting groove 42. The first mounting groove 41 is located on the outer surface of the male connector 11, and the second mounting groove 42 is located on the inner surface of the female connector 21. The depth of the recess of the mounting groove 4 does not exceed half the wall thickness of the male connector 11 or the female connector 21 to avoid insufficient connection strength at the groove. When installing this single-sided groove structure, it is only necessary to install the corresponding rubber ring 3 in the first mounting groove 41 and the second mounting groove 42, and then insert the male connector 11 into the female connector 21.

[0026] When the baffle 61 is composed of an upper baffle and a lower baffle, the inner wall of the glue injection chamber 6 is provided with two outward expansion grooves 51. The two outward expansion grooves 51 are located on the outer surface of the male connector 11 and the inner surface of the female connector 21, respectively, forming a stepped structure on the inner wall of the glue injection chamber 6, thus improving the bonding effect of the adhesive 7. Here, when the baffle 61 is installed on the male connector 11, the inner wall of the glue injection chamber 6 is provided with only one outward expansion groove 51, located on the outer surface of the male connector 11, with the corresponding position on the inner surface of the female connector 21 being a flat surface. Similarly, when the baffle 61 is installed on the female connector 21, the inner wall of the glue injection chamber 6 is provided with only one outward expansion groove 51, located on the outer surface of the female connector 21, with the corresponding position on the inner surface of the male connector 11 being a flat surface.

[0027] In this embodiment, the adhesive is a polyester resin material. Polyester resin material has excellent fluidity and can fully fill the complex structure inside the injection chamber 6 during injection, ensuring that there are no dead corners inside the injection chamber 6 after injection. Polyester resin material has a low curing shrinkage rate and can tightly adhere to the pipe wall and the rubber ring 3, avoiding the formation of sealing gaps during shrinkage. The above description is only a preferred embodiment of the present utility model. Any technical solution that achieves the purpose of the present utility model by essentially the same means shall fall within the protection scope of the present utility model.

Claims

1. A drain pipe glue injection connection structure, comprising a first drain pipe (1) and a second drain pipe (2), wherein the first drain pipe (1) is provided with a male connector (11) and the second drain pipe (2) is provided with a female connector (21), wherein after the male connector (11) is inserted into the female connector (21), a mating cavity is formed between the outer surface of the male connector (11) and the inner surface of the female connector (21), wherein the mating cavity is provided with two mutually spaced mounting grooves (4) for installing rubber rings (3), and a glue injection chamber (6) is formed between the two rubber rings (3), characterized in that: The glue injection chamber (6) is divided into a left glue chamber (62) and a right glue chamber (63) by a baffle (61). The left glue chamber (62) is provided with an air vent (64), and the right glue chamber (63) is provided with a glue injection hole (65). The left glue chamber (62) and the right glue chamber (63) are connected. The glue injection chamber (6) is filled with a connecting glue (7).

2. The drainage pipe glue injection connection structure according to claim 1, characterized in that: The baffle (61) is positioned along the axial direction of the first drain pipe (1) inside the glue injection chamber (6).

3. The drainage pipe glue injection connection structure according to claim 2, characterized in that: The glue injection hole (65) and the air outlet (64) are located on the left and right sides of the baffle (61), respectively.

4. The drainage pipe glue injection connection structure according to claim 2, characterized in that: The baffle (61) is fixedly connected to the upper surface of the female connector (21).

5. The drainage pipe glue injection connection structure according to claim 1, characterized in that: The mounting groove (4) includes at least one first mounting groove (41) and at least one second mounting groove (42), the first mounting groove (41) being located on the outer surface of the male connector (11) and the second mounting groove (42) being located on the inner surface of the female connector (21).

6. The drainage pipe glue injection connection structure according to claim 1, characterized in that: The inner wall of the glue injection chamber (6) is provided with two external expansion grooves (51), which are located on the outer surface of the male connector (11) and the inner surface of the female connector (21), respectively.

7. The drainage pipe glue injection connection structure according to claim 1, characterized in that: The inner walls of the first drain pipe (1) and the second drain pipe (2) are both fitted with a fiberglass layer (8) to enhance the structural strength of the drain pipe.

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