CN108253174B

CN108253174B - Quick-connect water hose

Info

Publication number: CN108253174B
Application number: CN201810283952.7A
Authority: CN
Inventors: 魏鲁双
Original assignee: Zhengzhou Sunjays Technology Co ltd
Current assignee: Shandong Taiqin Machinery Engineering Co.,Ltd.
Priority date: 2018-04-02
Filing date: 2018-04-02
Publication date: 2025-04-18
Anticipated expiration: 2038-04-02
Also published as: CN108253174A

Abstract

The present invention discloses a device for quickly connecting water pipes, wherein an externally threaded tapered tube is welded to the pipe mouth of a ball valve, a tapered external thread is arranged on the outside of the externally threaded tapered tube, a tapered internal thread is arranged on the inner side wall of an internally threaded tapered nut, the internally threaded tapered nut and the externally threaded tapered tube are connected together by threads, the inner side wall of the externally threaded tapered tube is provided with a tapered opening which is thick outside and thin inside, and a connecting pipe is sleeved inside the tapered opening. The invention is a straight-through connection device, and when in use, the water pipes are respectively inserted into the left and right ends of the device, and the installation and connection speed is very fast, the connection is not easy to fall off, and the sealing effect is good. The inner diameter size of the two ends can be changed by rotating the locking nut, and can be closed during the locking process of the locking nut, so that the caliber size is changed, making the water pipe more secure. The opening of the manual ball valve can be manually controlled.

Description

Device for quickly connecting water pipes

Technical Field

The invention belongs to the technical field of temperature and humidity on-site nursing of concrete structures, and particularly relates to a device for quickly connecting water pipes.

Background

At present, the two ends of the joint of the common pipe joint produced in the prior art are connected with the end head of the pipe body of the pipe by adopting a horizontal direct insertion method, the outer diameter of the end head of the pipe joint is consistent with the inner diameter of the pipe body, the inner diameter of the pipe joint is generally smaller than the inner diameter of the pipe by 3 to 6 millimeters due to the reasons of material strength and the like, the inner diameter of the common pipe joint is 12 millimeters by adopting a crosslinked polyethylene pipe with the inner diameter of 16 millimeters through calculation, the inner sectional area of the corresponding pipe joint is only 56.25 percent of the sectional area of the pipe per se, and the inner sectional area of the pipe joint corresponding to 44 millimeters by adopting a crosslinked polyethylene pipe with the inner diameter of 50 millimeters is 77.44 percent of the inner sectional area of the pipe per se. The problems of small water flow of the circulating system, poor connectivity, poor tightness, low operation efficiency and the like caused by the influence of resistance of the common pipe joint are not considered in the design.

Disclosure of Invention

The invention provides a device for quickly connecting water pipes, which aims at the problem that the operation efficiency is low due to the current situations of small water flow, poor connectivity and poor sealing performance of the conventional pipe joint.

The device for quickly connecting the water pipe comprises an external thread taper pipe welded at the pipe orifice of a ball valve, tapered external threads arranged on the outer side of the external thread taper pipe, a plurality of tapered matching grooves uniformly distributed on the circumferential surface of the external thread taper pipe, a lining rubber layer sleeved on the inner wall of the external thread taper pipe, a plurality of tapered ribs uniformly distributed on the outer surface of the lining rubber layer, and a tapered internal thread taper nut arranged on the inner side wall of the internal thread taper nut and connected with the external thread taper pipe through threads, wherein the inner side wall of the external thread taper pipe positioned at the pipe orifice is internally and externally converged to form a tapered convergence port, and a connecting pipe is sleeved in the tapered convergence port.

And an elastic piece is fixed on the outer side of the internal thread taper nut, is an outwards-protruding arched elastic piece, and the tail end of the elastic piece is clamped and fixed in tapered matching grooves uniformly distributed on the circumferential surface of the external thread taper pipe in a natural state.

And a lining is sleeved on the inner side of the external thread taper pipe or the lining rubber layer.

The through connecting device has the beneficial effects that the water pipes are respectively inserted into the left end and the right end of the device when in use, the installation and connection speed is very high, the connection is not easy to fall off, and the sealing effect is good. The inner diameters of the two ends of the water pipe can be changed by rotating the lock nut, and the water pipe can be closed in the locking process of the lock nut, so that the caliber is changed, and the water pipe is firmer. The opening degree of the manual ball valve can be controlled manually.

The elastic sheet can be used for achieving the purpose of preventing the female taper of the internal thread from sliding backwards in a natural state. However, after the elastic sheet is pressed, the arch elastic sheet moves downwards to drive the chuck to bounce, so that the chuck is separated from the conical matching groove, the operation is simple and convenient, and the practicability is strong.

Drawings

Fig. 1 is a schematic cross-sectional view of a ball valve according to the present invention.

Fig. 2 is a schematic view of an external structure of the externally threaded cone of fig. 1.

Fig. 3 is a schematic view of the partial cross-sectional structure of fig. 2.

Fig. 4 is a schematic structural view of an anti-slip elastic sheet installed on an internal thread cone nut.

In the figure, the reference numeral 1 is a ball valve, 2 is an external thread taper pipe, 3 is an internal thread taper nut, 4 is a bushing, 5 is a connecting pipe, 6 is a ball valve pipe orifice, 7 is a ball valve handle, 8 is a taper fit groove, 9 is a lining rubber layer, 10 is a taper convex edge of the lining rubber layer, 11 is a taper thread, 12 is a taper convergence port, 13 is an elastic sheet, 14 is a clamping head, and 15 is a blind pin.

Detailed Description

Example 1 referring to the device for quick connection of water pipes shown in fig. 1, based on the existing ball valve 1, a combined structure of an external thread taper pipe and an internal thread taper nut is adopted. Specifically, two external thread taper pipes 2 are welded at two ends of the ball valve 1 respectively. The outside thread of each external thread taper pipe 2 is connected with an internal thread taper nut 3.

In fig. 1, it can be seen that a conical external thread is provided on the outer side of the external thread taper pipe 2, a conical internal thread is provided on the inner side wall of the internal thread taper nut 3, and the internal thread taper nut 3 and the external thread taper pipe 2 are connected together by threads. The opening degree of the manual ball valve 1 can be controlled manually.

Meanwhile, the inner side wall of the external thread taper pipe 2 at the pipe orifice position is converged from inside to outside to form a conical convergence orifice 12, and a connecting pipe 5 is sleeved in the conical convergence orifice 12.

In order to realize the contraction function of the external thread taper pipe 2, as shown in fig. 2 and 3, a plurality of conical matching grooves 8 are uniformly distributed on the circumferential surface of the external thread taper pipe 2, the outer end width of the conical matching groove 8 is larger than the inner end width, a lining rubber layer 9 is sleeved on the inner wall of the external thread taper pipe 2, a plurality of conical protruding edges are uniformly distributed on the outer surface of the lining rubber layer 9, and each conical protruding edge is matched with the corresponding conical matching groove 8. Therefore, the installation and connection speed is very high, the connection is not easy to fall off, and the sealing effect is good. When the female screw 3 at both sides is rotated, the male screw taper pipe 2 is compressed inwards, so that the connecting pipe 5 is pressed, and the sealing effect is achieved while the compression is performed.

In embodiment 2, based on embodiment 1, referring to fig. 4, a spring 13 is fixed on the outer side of the internal thread taper nut 3, the spring 13 is an arch spring protruding outwards, and a chuck 14 at the tail end of the spring is clamped and fixed in a taper fit groove 8 uniformly distributed on the circumference of the external thread taper tube 2 in a natural state. The elastic sheet can be used for achieving the purpose of preventing the female taper of the internal thread from sliding backwards in a natural state. However, when the elastic sheet is pressed, the arch elastic sheet moves downwards to drive the chuck 14 to spring up, so that the chuck 14 is separated from the conical matching groove 8.

In example 3, on the basis of example 1, a lining sleeve 4 is sleeved on the inner side of an external thread taper pipe 2 or a lining rubber layer 9, and when in use, water pipes are respectively inserted into the left end and the right end of the device to realize straight-through connection. The lock nut is a conical internal thread, and the inner diameters of the two ends can be changed by rotating the lock nut. The conical external thread is of a multi-petal structure and can be closed in the locking process of the lock nut, so that the caliber is changed, and the water pipe is firmer.

Claims

1. A device for quickly connecting water pipes is characterized in that an external thread taper pipe is welded at a pipe orifice of a ball valve, conical external threads are arranged on the outer side of the external thread taper pipe, a plurality of conical matching grooves are uniformly distributed on the circumferential surface of the external thread taper pipe, elastic pieces are fixed on the outer side of the internal thread taper pipe, the outer end of each elastic piece is of an arch shape protruding outwards, the tail end of each elastic piece is clamped in the conical matching groove of the circumferential surface of the external thread taper pipe in a natural state, the elastic pieces are prevented from sliding down, the elastic pieces can be driven to be separated from the conical elastic pieces downwards after being pressed down, the inner side wall of each internal thread taper pipe is provided with conical internal threads, the inner side wall of each internal thread taper pipe is connected with the external thread taper pipe through threads, the inner side wall of the external thread taper pipe is provided with a conical convergence port from inside to outside, a connecting pipe is sleeved in the conical convergence port, the elastic pieces are fixed on the outer side of each elastic piece, the elastic pieces are of the conical matching grooves protruding outwards, the tail ends of the elastic pieces are clamped in the conical matching grooves of the circumferential surfaces of the external thread taper pipe in the natural state, the elastic pieces are prevented from sliding down, and the elastic pieces can be driven to be separated from the elastic pieces to be matched downwards after being pressed down.

2. The device for quickly connecting water pipes according to claim 1, wherein a bushing is sleeved on the inner side of the externally threaded taper pipe or the lining rubber layer.