Quick-connection type drain pipe joint

Abstract

The utility model discloses a quick connection type drain pipe joint, which relates to the technical field of water pipe joints and comprises a joint main body and a sealing ring, a pressure relief component is arranged at the upper end of the joint main body, fastening side wings are arranged on the left side and the right side of the outer end face of the joint main body, contraction joints are arranged on the front side and the rear side of each fastening side wing, and the sealing ring is mounted in the contraction joints. A fixing bolt is arranged on the fastening side wing, a pressure relief pipe is arranged on the upper end face of the connector body, and the pressure relief assembly is installed in the pressure relief pipe and comprises a valve rod and a spring. The water pipe connector has the advantages of being simple and effective in pressure relief mechanism, optimized in sealing structure and convenient and fast to install, and solves the problems that an existing water pipe connector is difficult to fix due to large internal pressure, traditional sealing is prone to losing efficacy, and installation efficiency is low.

Description

TECHNICAL FIELD

[0001] The utility model relates to water pipe joint technical field, concretely is a quick -witted drainage pipe joint. BACKGROUND

[0002] In the prior art, the installation and use process of the drainage pipe joint often encounters the problem of difficulty in fixing due to excessive internal pressure, and the traditional joint usually lacks an effective pressure relief mechanism, so if there is a certain water pressure in the pipeline during installation, the fixing difficulty of the joint will be greatly increased, which not only affects the work efficiency, but also may cause poor sealing and cause water leakage. In addition, the traditional sealing structure often adopts a single plane sealing design, which is prone to sealing failure due to slight deviation or uneven pressure distribution between the pipelines.

[0003] For some application scenarios that require quick installation or disassembly, how to ensure that the joint can be quickly assembled and maintain good sealing is an important topic. Although some products on the market try to improve the sealing effect by improving the sealing material or adding additional sealing members, these methods often increase the cost and do not fundamentally solve the sealing reliability problem caused by internal pressure changes, so a quick drainage pipe joint is needed to solve the above problems. SUMMARY

[0004] The utility model discloses a quick drainage pipe joint, which has the advantages of simple and effective pressure relief mechanism, optimized sealing structure and convenient and quick installation, and solves the problems of difficulty in fixing due to high internal pressure of the existing water pipe joint, easy failure of the traditional sealing and low installation efficiency.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a quick drainage pipe joint, comprising a joint main body and a sealing ring, the upper end of the joint main body is provided with a pressure relief assembly;

[0006] The outer end face of the joint main body is provided with fastening side wings on the left and right sides, the front and rear sides of the fastening side wings are provided with contraction joints, the sealing ring is installed in the contraction joint, the fastening side wings are provided with fixing bolts, the upper end face of the joint main body is provided with a pressure relief pipe, the pressure relief assembly is installed in the pressure relief pipe, and the pressure relief assembly comprises a valve rod and a spring.

[0007] As a preferred quick drainage pipe joint of the utility model, the bottom of the valve rod is provided with a valve plate in sliding connection with the pressure relief pipe, the inner end face of the pressure relief pipe is provided with a first limiting ring and a second limiting ring for limiting the movement of the valve plate, the valve plate and the first limiting ring are elastically connected in sliding through the spring, and the upper end face of the valve plate is provided with a sealing gasket.

[0008] The inner end face edge of the first limiting ring is provided with a positioning flange matched with the spring.

[0009] As one kind of quick connection type drainage pipe joint of the utility model, the top of the pressure relief pipe is provided with a mushroom cap, the mushroom cap is a hollow structure, the top of the mushroom cap is provided with a limiting sliding groove, the side end face of the valve rod is provided with a limiting plate with the same shape as the limiting sliding groove, and the top of the valve rod is provided with a knob.

[0010] As one kind of quick connection type drainage pipe joint of the utility model, the bottom of the mushroom cap is uniformly provided with drainage holes on the single face.

[0011] As one kind of quick connection type drainage pipe joint of the utility model, the inner end face of the joint main body is provided with a positioning groove matched with the sealing ring.

[0012] As one kind of quick connection type drainage pipe joint of the utility model, the sealing ring comprises an annular part and a right-angle part, and the thickness of the right-angle part gradually increases from the end close to the annular part to the end away from the annular part along the axial direction of the joint main body.

[0013] Compared with the prior art, the utility model has the advantages as follows:

[0014] 1、The utility model discloses a pressure relief assembly and fastening side wing cooperation, effectively solve the fixed difficult problem of traditional joint installation because of the internal pressure is too big, pressure relief assembly adopts the structure of valve rod, spring linkage valve plate, when installing, the valve rod can open the pressure relief channel and release the water pressure, the limiting sliding groove of mushroom cap and the rotary clamping function are combined, realize the mechanical locking of pressure relief state, so that the operator can easily complete the fixation of joint main body, the shrinkage joint design of fastening side wing produces radial shrinkage force when the bolt is locked, the trapezoidal right-angle part of sealing ring and the shrinkage joint shape are matched, and gradual compression sealing is formed, which ensures quick assembly and realizes pressure self-adaptive adjustment.

[0015] 2、The utility model discloses a composite sealing structure, which significantly improves the sealing reliability of the joint, the annular part of the sealing ring cooperates with the positioning groove to form an axial sealing surface, the right-angle part forms a three-dimensional sealing through the thickness gradient design and the shrinkage joint, effectively eliminating the defect that the traditional plane sealing is easy to deviate, at the same time, the double protection of spring positioning flange and valve plate sealing gasket in pressure relief assembly avoids the pressure relief failure caused by spring deviation, and ensures the tightness of the pressure relief channel through elastic contact sealing when closing, forming a double leakage prevention barrier of main channel and pressure relief channel.

[0016] 3, the utility model discloses a mushroom cap downward drainage hole guides the pressure relief water flow to the ground, avoids the harm of high-pressure water flow direct spray to the operator, and the rotation locking mechanism of limit sliding groove and knob prevents the misoperation through mechanical interlocking, ensures the reliability of pressure relief state switching, and the guide structure of sealing ring positioning groove and spring positioning flange maintains the accurate alignment of sealing element in the dynamic assembly process, effectively prevents the sealing failure problem caused by component misplacement, and the humanized safety design reduces the operation risk and improves system stability. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is the overall structure schematic diagram of the utility model;

[0018] Figure 2 It is the plan view of the utility model;

[0019] Figure 3 It is the Figure 2 A-A section of the utility model;

[0020] Figure 4 It is the Figure 3 B enlarged view of the utility model;

[0021] Figure 5 It is the sealing ring structure schematic diagram of the utility model.

[0022] In the drawing: 1, joint body;101, fastening side wing;102, contraction joint;103, fixed bolt;104, pressure relief pipe;105, first limit ring;1051, positioning flange;106, second limit ring;107, mushroom cap;1071, limit sliding groove;1072, drainage hole;108, positioning groove;2, pressure relief assembly;201, valve rod;2011, limit plate;2012, valve plate;2013, sealing gasket;2014, knob;202, spring;3, sealing ring;301, annular part;302, right-angle part. DETAILED DESCRIPTION

[0023] Please refer to Figures 1-5 A quick connection type drain pipe joint, including joint body 1 and sealing ring 3, the upper end of joint body 1 is provided with pressure relief assembly 2;

[0024] The left and right sides of the outer end surface of joint body 1 are provided with fastening side wing 101, the front and rear sides of fastening side wing 101 are provided with contraction joint 102, sealing ring 3 is installed in contraction joint 102, fixed bolt 103 is arranged on fastening side wing 101, pressure relief pipe 104 is arranged on the upper end surface of joint body 1, pressure relief assembly 2 is installed in pressure relief pipe 104, and pressure relief assembly 2 includes valve rod 201 and spring 202.

[0025] Further, the bottom of the valve rod 201 is provided with a valve plate 2012 in sliding connection with the pressure relief pipe 104, the inner end face of the pressure relief pipe 104 is provided with a first limiting ring 105 and a second limiting ring 106 for limiting the movement of the valve plate 2012, the valve plate 2012 is in elastic sliding connection with the first limiting ring 105 through a spring 202, and the upper end face of the valve plate 2012 is provided with a sealing gasket 2013.

[0026] Under the action of the spring 202, the valve plate 2012 slides upward to extrude the lower end face of the second limiting plate 2011, so that the pressure relief pipe 104 is sealed. During installation, the valve rod 201 is pressed downward, so that the valve plate 2012 slides downward, so that the water in the joint body 1 can be discharged from the side wall of the pressure relief pipe 104, thereby reducing the pressure in the joint body 1 and facilitating the fixation thereof. The sealing gasket 2013 improves the sealing effect.

[0027] Further, the inner end face edge of the first limiting ring 105 is provided with a positioning flange 1051 matched with the spring 202.

[0028] The positioning flange 1051 is used to position the spring 202, so as to avoid deviation of the spring 202 during sliding and improve the stability of the equipment.

[0029] Further, the top of the pressure relief pipe 104 is provided with a mushroom cap 107, the mushroom cap 107 is a hollow structure, the top of the mushroom cap 107 is provided with a limiting sliding groove 1071, the side end face of the valve rod 201 is provided with a limiting plate 2011 with the same shape as the limiting sliding groove 1071, and the top of the valve rod 201 is provided with a knob 2014.

[0030] By pressing the knob 2014, the limiting plate 2011 slides downward into the mushroom cap 107, and then the valve rod 201 is rotated by ninety degrees through the knob 2014, so that the limiting plate 2011 clamps the lower end face of the top of the mushroom cap 107, avoiding the rebound of the valve rod 201 under the action of the spring 202, thereby realizing the normally open of the pressure relief pipe 104. After the installation of the joint body 1 is completed, it is rotated by ninety degrees again, so that the limiting plate 2011 passes through the limiting sliding groove 1071 and pops up upward, and the valve plate 2012 is attached to the second limiting ring 106, thereby completing the sealing of the pressure relief pipe 104.

[0031] Further, the bottom of the mushroom cap 107 is uniformly provided with a plurality of drainage holes 1072.

[0032] The downward-opening drainage holes 1072 allow the water discharged from the pressure relief pipe 104 to flow downward, avoiding upward spraying of the water and splashing on the faces of the operators, thereby affecting the operation of the employees.

[0033] Further, the inner end face of the joint body 1 is provided with a positioning groove 108 matched with the sealing ring 3.

[0034] The positioning groove 108 avoids the sealing ring 3 from sliding during installation, causing a gap between the joint body 1 and the sealing ring 3, affecting the sealing effect.

[0035] Further, the sealing ring 3 includes an annular portion 301 and a right-angle portion 302, and the thickness of the right-angle portion 302 gradually increases along the axial direction of the joint body 1 from the end close to the annular portion 301 to the end away from the annular portion 301.

[0036] The annular portion 301 seals the inner end face of the pipeline and the joint body 1, and the right-angle portion 302 seals the shrinkage joint 102, which is trapezoidal in shape after being fastened, and the sealing ring 3 corresponds to the shape of the fastened shrinkage joint 102, thereby further improving the sealing performance of the joint after installation.

[0037] In use, the sealing ring 3 is first installed in the positioning groove 108 of the inner end face of the joint body 1, ensuring that the sealing ring 3 does not slide during installation and ensuring the sealing effect between the joint body 1 and the sealing ring 3. The annular portion 301 of the sealing ring 3 is used to seal the inner end face of the pipeline and the joint body 1, and the right-angle portion 302 is used to seal the shrinkage joint 102, and the thickness of the right-angle portion 302 gradually increases along the axial direction of the joint body 1 from the end close to the annular portion 301 to the end away from the annular portion 301, corresponding to the shape of the trapezoidal-shaped shrinkage joint 102 after being fastened, which can further improve the sealing performance. Then, the joint body 1 is placed at the position of the drainage pipe to be connected, at which time the shrinkage joint 102 on the fastening flange 101 on the left and right sides of the outer end face of the joint body 1 has already been installed with the sealing ring 3. Next, the joint body 1 is fastened and connected with the drainage pipe through the fixing bolts 103 on the fastening flange 101. During the fastening process, due to the water pressure in the joint body 1, pressure relief operation is required. First, find the pressure relief pipe 104 provided on the upper end face of the joint body 1, and install the pressure relief assembly 2 in the pressure relief pipe 104. After the limiting plate 2011 at the top of the valve rod 201 is slid downward into the mushroom cap 107 by pressing the knob 2014, rotate the knob 2014 by ninety degrees to make the limiting plate 2011 stop at the lower end face of the top of the mushroom cap 107, avoiding the rebound of the valve rod 201 under the action of the spring 202, and achieving the opening of the pressure relief pipe 104. When the installation of the joint body 1 is completed, rotate the valve rod 201 by ninety degrees again to make the limiting plate 2011 pass through the limiting sliding groove 1071, and the valve rod 201 is upwardly popped up under the action of the spring 202, and the valve plate 2012 is attached to the second limiting ring 106, completing the sealing of the pressure relief pipe 104. The mushroom cap 107 provided at the top of the pressure relief pipe 104 is a hollow structure, and the drainage holes 1072 are uniformly arranged on the bottom single face, which can make the water discharged from the pressure relief pipe 104 flow downward, avoiding the water from being sprayed upward to the face of the operator and affecting the operation.

[0038] The above merely describes the preferred embodiments of the present application, and is not intended to limit the present application, and any modification, equivalent replacement, and improvement within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A quick coupling drain pipe joint comprising a joint body (1) and a sealing ring (3), characterized in that: The upper end of the joint body (1) is provided with a pressure relief assembly (2); The outer end face of the joint body (1) is provided with fastening flanks (101) on the left and right sides, the fastening flanks (101) are provided with shrinkage joints (102) on the front and back sides, the sealing ring (3) is installed in the shrinkage joints (102), the fastening flanks (101) are provided with fixing bolts (103), the upper end face of the joint body (1) is provided with a pressure relief pipe (104), the pressure relief assembly (2) is installed in the pressure relief pipe (104), and the pressure relief assembly (2) comprises a valve rod (201) and a spring (202).

2. A quick coupling drain fitting as defined in claim 1, wherein: The bottom of the valve rod (201) is provided with a valve plate (2012) in sliding connection with the pressure relief pipe (104), the inner end face of the pressure relief pipe (104) is provided with a first limiting ring (105) and a second limiting ring (106) for limiting the movement of the valve plate (2012), the valve plate (2012) and the first limiting ring (105) are elastically connected in sliding connection through the spring (202), and the upper end face of the valve plate (2012) is provided with a sealing gasket (2013).

3. A quick coupling drain fitting as defined in claim 2 wherein: The inner end face edge of the first limiting ring (105) is provided with a positioning flange (1051) matched with the spring (202).

4. A quick coupling drain fitting as defined in claim 1, wherein: The top of the pressure relief pipe (104) is provided with a mushroom cap (107), the mushroom cap (107) is a hollow structure, the top of the mushroom cap (107) is provided with a limiting sliding groove (1071), the side end face of the valve rod (201) is provided with a limiting plate (2011) with the same shape as the limiting sliding groove (1071), and the top of the valve rod (201) is provided with a knob (2014).

5. A quick coupling drain fitting as defined in claim 4 wherein: The bottom of the mushroom cap (107) is uniformly provided with drainage holes (1072) on the lower single face.

6. A quick coupling drain fitting as defined in claim 1, wherein: The inner end face of the joint body (1) is provided with a positioning groove (108) matched with the sealing ring (3).

7. A quick coupling drain fitting as defined in claim 1, wherein: The sealing ring (3) comprises an annular portion (301) and a right-angle portion (302), and the thickness of the right-angle portion (302) gradually increases from the end close to the annular portion (301) to the end away from the annular portion (301) along the axial direction of the joint body (1).

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