A new type of push-in quick pipe connector and its tooling process

Abstract

The present invention proposes a push-in quick pipe connector with a new connection method and its tooling process, including a water inlet, a pressure cover and a sealing ring on a waterway plate, the pressure cover is fixed inside the water inlet by crimping, the pressure cover is connected to the water inlet on the waterway plate by interference fit, the pressure cover is a copper pressure cover, the upper end diameter of the pressure cover is larger than the bottom end diameter, the bottom end of the pressure cover has a trumpet-shaped opening, and a clamping platform is also provided at the trumpet-shaped portion of the pressure cover; the present invention improves the work efficiency of enterprise production, enhances the sealing effect and the use stability of the waterway plate, avoids the problem of the entire waterway plate being scrapped due to cold welding and sealing problems; reduces production costs for enterprises and improves production benefits.

Description

Technical Field

[0001] The invention relates to the field of water pipe joints, and in particular to a push-in quick pipe connector with a novel connection method and a tooling process thereof. Technical Background

[0002] At present, the sealing connection method of the water outlet of the integrated waterway board is to weld the plastic gland to the water outlet by ultrasonic welding (see the attached manual). Figure 5 ), using this ultrasonic welding method to connect and weld the component structure at the water inlet, it is easy to have a defective rate, and it is easy to have problems such as cold welding and welding slag generated during welding; the impact caused by cold welding is that when the water pressure at the water inlet is high, the gland cannot withstand the influence of the water pressure, causing the gland to pop out, thereby causing water leakage and the waterway plate to be scrapped; during ultrasonic welding, welding slag will be generated due to high-speed vibration, and the welding slag is easy to splash onto the sealing ring, resulting in a gap between the waterway plate and the sealing ring, causing the sealing performance to decrease, thereby causing water leakage; and the main reason for the generation of welding slag is the problem of too much welding and too little welding during welding. If the welding time is too long, welding slag will be generated, and if the welding time is too short, it will cause problems such as loose welding and cold welding. If the welding is not firm, the gland will jump out, thereby causing water leakage; ultrasonic welding also has high requirements on the size of the welding body. If it is too small, it cannot be welded in, and if it is too large, it cannot be welded firmly, so it is necessary to repeatedly modify the welding body The size of the body mold is debugged, thereby increasing the mold manufacturing cost and extending the production cycle; if there is oil stain on the welding position of the welded product, the welding will not be firm, and the main source of oil stain is during the injection molding of the plastic mold; in addition, because there are multiple water pipe joints of different heights on the waterway plate, ultrasonic welding is used, and each welding position must have a corresponding welding fixture and ultrasonic welding machine to cooperate. Another is that the welding height and position must be adjusted for each welding position, thereby increasing the fixture installation time and adjustment time; if a waterway plate has 5 places to be welded, the clamping fixture must be moved for five weldings, which greatly reduces the work efficiency, or five ultrasonic welding machines are prepared, each machine welds one position, which greatly increases the initial production cost; in order to solve the above technical problems, the patent of the present invention proposes a push-in quick pipe connector with a new connection method and its tooling process. Summary of the invention

[0003] The technical effect achieved by the present invention is that the pressure cover and the water outlet on the waterway plate are tightly connected and matched together by a strong pressure internal clamping method, avoiding technical problems such as cold welding, waste slag generated by welding affecting the sealing effect, loose welding, complicated welding procedures for multiple water outlets affecting work efficiency, and high production costs; thereby enhancing the quality of the product, improving the production efficiency of the product and the stability of the product, thereby replacing the joint structure and tooling process of ultrasonic welding.

[0004] In order to achieve the above-mentioned technical effect, a push-in quick pipe connector with a new connection method and its tooling process are provided, including a water outlet, a pressure cover and a sealing ring on a waterway plate, the pressure cover is fixed inside the water outlet by a strong pressure internal clamping method, and is connected with the water outlet by interference fit; the pressure cover is a copper pressure cover, the upper end diameter of the pressure cover is larger than the bottom end diameter, the upper end inner hole diameter of the pressure cover is smaller than the bottom end inner hole diameter, the bottom end of the pressure cover is open in a trumpet shape, and a clamping platform is also provided at the trumpet shape of the pressure cover; a groove for limiting the pressure cover is provided inside the water outlet, a limit block corresponding to the groove on the water outlet is provided on the bottom end of the pressure cover, the limit block is connected with the groove by interference fit through a strong pressure internal clamping method, the groove and the limit block tightly fix the pressure cover in the water outlet, and two sealing rings are provided inside the bottom end of the water outlet, the sealing rings are superimposed on each other, and the sealing ring is provided below the pressure cover.

[0005] Furthermore, a claw is installed in the middle of the pressure cover, the upper end diameter of the claw is larger than the lower end diameter of the claw, and the lower end of the claw is provided with a claw protrusion, and the claw protrusion cooperates with the card base at the trumpet-shaped part of the pressure cover to fix the claw in the pressure cover, and a metal card is provided on the inner side of the claw.

[0006] A tooling process for a push-in quick pipe connector with a new connection method includes the following steps:

[0007] The first step is to install two sealing rings in each water outlet of the waterway plate, and the two sealing rings are superimposed on each other. Then, use a tool to push the sealing ring into the position of the fixed sealing ring and plug it in tightly;

[0008] In the second step, place the waterway plate equipped with the sealing ring on the platform of the crimping device, and each pressure head on the crimping device corresponds to each water outlet. Then, put the bottom end of the copper gland into each water outlet first; use the pressure head on the crimping device to force each corresponding copper gland into each water outlet at the same time, so that the copper gland and the water outlet are fixed in a strong pressure internal clamping manner and connected with the water outlet by interference fit; finally, insert the claw into the gland, and fit the protrusion of the claw with the clamping platform at the trumpet shape of the gland to complete the connection and assembly of the components at the water outlet.

[0009] The key improvement of the patent of the present invention is to connect the copper gland and the water outlet by using the strong pressure internal clamping method, thereby changing and replacing the ultrasonic welding method of the pipe connector; specifically, the copper gland is pressed into the water inlet by using a crimping device to complete the strong pressure internal clamping method of the copper gland, so that the copper gland and the water outlet are connected together by interference fit, which reduces the tooling process of the product, solves the problem of cold welding between the gland and the water outlet, thereby avoiding the problem of the gland flying out due to being unable to withstand the water pressure, causing water leakage, and completely solves the problem of welding slag generated by ultrasonic welding splashing onto the sealing ring. It solves the technical problem that affects the sealing effect; it solves the technical problem that the gland cannot be firmly welded to the sprue due to oil stains on it; it also solves the technical problem that when installing the gland on a waterway board with multiple sprues of different heights, it has to go through multiple adjustments of the clamps, welding heights, or use multiple welding machines for welding, which greatly reduces the capital investment in purchasing early tooling equipment for the enterprise; thereby improving the work efficiency of the enterprise's production, enhancing the sealing effect and stability of the waterway board, and avoiding the problem of the entire waterway board being scrapped due to false welding and sealing problems; it reduces the production cost for the enterprise and improves the production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a structural schematic diagram of the present invention;

[0011] Figure 2 It is a schematic diagram of the enlarged structure of the water inlet of the present invention;

[0012] Figure 3 Schematic diagram of the water-free structure of the present invention

[0013] Figure 4 Schematic diagram of the copper gland mechanism of the present invention

[0014] Figure 5 Schematic diagram of ultrasonic welding structure

[0015] Indicated in the figure: waterway plate 1, water inlet 2, groove 201, pressure cover 3, bell-mouth shape 301, clamping platform 302, limit block 303, sealing ring 4, clamping claw 5, clamping claw protrusion 501. DETAILED DESCRIPTION

[0016] See also Figures 1 to 4The present invention proposes a push-in quick pipe connector with a new connection method and its tooling process, including a nozzle 2, a gland 3 and a sealing ring 4 on a waterway plate 1. The gland 3 is fixed inside the nozzle 2 by a strong pressure internal clamping method. Interference fit connection; the gland 3 is a copper gland, the upper end diameter of the gland 3 is larger than the bottom end diameter, the upper end inner hole diameter of the gland 3 is smaller than the bottom end inner hole diameter, the bottom end of the gland 3 is open in a trumpet-shaped 301, and a clamping platform 302 is also provided at the trumpet-shaped 301 of the gland; the water outlet 2 is provided with a groove 201 for limiting the gland 3, and a limit block 303 corresponding to the groove 201 on the water outlet 2 is provided on the bottom end of the gland 3, and the limit block 303 is connected with the groove 201 by interference fit through a strong internal clamping method, and the groove 201 and the limit block 303 tightly fix the gland in the water outlet, and two sealing rings are provided inside the bottom end of the water outlet, and the sealing rings are superimposed on each other, and the sealing ring is provided at the lower end of the gland. Two sealing rings 4 are arranged inside the bottom end of the water inlet, and the sealing rings 4 are superimposed on each other and arranged under the pressure cover 3; a claw 5 is also installed in the middle of the pressure cover 3, and the upper end diameter of the claw 5 is larger than the lower end diameter of the claw 5, and the lower end of the claw is provided with a claw protrusion 501, and the claw protrusion 501 is engaged with the clamping platform 302 at the bell-mouth shape 301 of the pressure cover 3 to fix the claw 5 in the pressure cover 3, and a metal card 502 is provided on the inner side of the claw 5.

[0017] The present invention is a patent that first inserts two sealing rings 4 into each water outlet 2 of the waterway plate 1 to the specified position, and uses a tool to plug the two sealing rings 4 in each water outlet 2, and makes the two sealing rings 4 The sealing rings 4 are stacked on each other without leaving any gap in the middle; then the waterway plate 1 with the sealing ring 4 installed is placed on the fixed plate, and then placed on the platform of the crimping device, so that each pressure head on the crimping device corresponds to each water outlet 2, and then the pressure cover 3 is installed from each water outlet 2. When installing the pressure cover 3, the small bottom end is put in first until the top of the water outlet touches the limit block 303 on the pressure cover (that is, it is no longer possible to manually install it into the water outlet); then the crimping device works, so that the multiple pressure heads on the crimping device move toward the corresponding water outlet 2 at the same time, and at the same time, each pressure cover 3 is pressed into the inside of each water outlet 2, so that the copper pressure cover and the water outlet are fixed in a strong pressure internal clamping manner, and are connected with the water outlet (2) by interference fit; and the limit block 303 is connected with the groove 201 by clamping after crimping; finally, the claw is inserted into the pressure cover, and the claw protrusion is interference fit with the clamping platform at the trumpet shape of the pressure cover, so as to complete the connection and assembly of the components at the water outlet.

[0018] In the patent of the present invention, the upper diameter of the copper gland is equal to the diameter of the water outlet, and the lower diameter of the copper gland is set to be smaller than the upper diameter. This is to facilitate the lower end of the copper gland to be placed into the water outlet first, so as to better improve the accuracy and stability of the crimping device during crimping; the bottom diameter of the clamping claw is set to be smaller than the upper diameter. This is to facilitate the clamping claw to be placed into the inner hole of the copper gland, and the bottom end of the copper gland is set to a trumpet shape to facilitate the placement of the clamping claw. The clamping platform is set at the trumpet shape to cooperate with the protrusion of the clamping claw to provide a more stable fixing effect on the clamping claw. The metal card set on the inner side of the clamping claw is to fix the water pipe.

[0019] The patent of the present invention uses the crimping method to make the copper gland and the water outlet connected together with an interference fit, thereby reducing the tooling process flow of the product, solving the problem of cold welding between the gland and the water outlet, thereby avoiding the problem of the gland flying out due to being unable to withstand the water pressure and causing water leakage, and also completely solves the technical problem that the welding slag generated by ultrasonic welding splashes onto the sealing ring and affects the sealing effect, and solves the technical problem that the gland cannot be firmly welded to the water outlet due to oil stains; it also solves the technical problem that when installing the gland at multiple water outlets of different heights on a waterway plate, the clamp and welding height must be adjusted multiple times or multiple welding machines must be used for welding, which greatly reduces the capital investment in purchasing early tooling equipment for the enterprise; thereby improving the work efficiency of the enterprise's production, enhancing the sealing effect and stability of the waterway plate, and avoiding the problem of the entire waterway plate being scrapped due to cold welding and sealing problems; it reduces the production cost for the enterprise and improves the production efficiency.

[0020] The above embodiments are intended to protect the present invention but are not limited to the above embodiments and their variations. Conventional modifications and replacements made by those skilled in the art based on the contents of the embodiments are all within the scope of protection of the present invention.

Claims

1. A push-in quick pipe connector with a novel connection method, comprising a water outlet (2), a gland (3) and a sealing ring (4) on a waterway plate (1); the gland (3) is fixed inside the water outlet (2) by a strong pressure internal clamping method and is connected to the water outlet (2) by interference fit; the gland (3) is a copper gland; the diameter of the upper end of the gland (3) is larger than the diameter of the bottom end; the diameter of the inner hole of the upper end of the gland (3) is smaller than the diameter of the inner hole of the bottom end; the bottom end of the gland (3) is opened in a bell-mouth shape (301); a clamping platform (302) is further provided at the bell-mouth shape (301) of the gland (3); a groove (201) for limiting the gland (3) is provided inside the water outlet (2); a groove (201) for limiting the gland (3) is provided on the bottom end of the gland (3) and is connected to the groove (201) on the water outlet (2) A corresponding limit block (303) is connected with the groove (201) by interference fit through a forced internal clamping method. The groove (201) and the limit block (303) tightly fix the gland (3) in the water outlet (2). Two sealing rings (4) are arranged inside the bottom end of the water outlet (2). The sealing rings (4) are superimposed on each other and are arranged below the gland (3). A clamping claw (5) is also installed in the middle of the gland (3). A clamping claw protrusion (501) is arranged at the lower end of the clamping claw (5). The clamping claw protrusion is clamped and matched with the clamping platform (302) at the bell-shaped (301) of the gland to fix the clamping claw (5) in the gland (3). The upper end diameter of the copper gland is equal to the diameter of the water outlet (2).

2. A push-in quick pipe connector with a novel connection method as claimed in claim 1, characterized in that: The diameter of the upper end of the clamping claw (5) is greater than the diameter of the lower end of the clamping claw (5), and a metal card (502) is provided on the inner side of the clamping claw (5).

3. The assembly process of a push-in quick pipe connector with a novel connection method as claimed in claim 1, characterized in that: The following steps are involved: The first step is to install two sealing rings (4) in each water inlet (2) of the waterway plate, and the two sealing rings (4) are stacked on top of each other. Then, a tool is used to push the sealing ring (4) into the position of the fixed sealing ring (4) and plug it in tightly. In the second step, the waterway plate (1) equipped with the sealing ring (4) is placed on the platform of the crimping device, and each pressure head on the crimping device corresponds to each water outlet (2). Then, the bottom end of the copper gland is first placed into each water outlet (2); each corresponding copper gland is simultaneously pressed into each water outlet (2) by the pressure head on the crimping device, so that the copper gland and the water outlet are fixed in a strong pressure internal clamping manner and connected with the water outlet (2) by interference fit; finally, the clamping claw (5) is inserted into the gland (3), and the clamping claw protrusion (501) is clamped and matched with the clamping platform (302) at the bell-shaped part (301) of the gland (3), thereby completing the connection and assembly of the components at the water outlet (2); by using the crimping device to crimp the copper gland, The copper gland is fixed in the water inlet (2) by a strong pressure clamp, so that the copper gland is connected to the water outlet (2) by interference fit, which reduces the tooling process of the product and solves the problem of cold welding between the gland (3) and the water outlet (2), thereby avoiding the gland (3) from flying out due to being unable to withstand the water pressure, resulting in water leakage. The technical problem that welding slag generated by ultrasonic welding splashes onto the sealing ring and affects the sealing effect is also completely solved; the technical problem that the gland (3) cannot be firmly welded to the water outlet (2) due to oil stains is solved; and the technical problem that when installing glands at multiple water outlets (2) of different heights on a waterway plate (1), the clamp and welding height must be adjusted multiple times or multiple welding machines must be used for welding is solved.

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