WO2000024301A1

WO2000024301A1 - Water supply system for drinking water machine

Info

Publication number: WO2000024301A1
Application number: PCT/CN1999/000060
Authority: WO
Inventors: Zhendong Liu; Nianci Li
Original assignee: Zhuhai Yonglong Group Co.
Priority date: 1998-10-25
Filing date: 1999-04-26
Publication date: 2000-05-04
Also published as: AU3593699A

Abstract

A water supply system for drinking water machine includes a bottle support (1), intake top pipe (2), storage water tank (4) and discharging water leak-tight connector (6) installed on the storage water tank (4). The intake top pipe (2) is installed in the bottle support (1). The lower part of intake top pipe (2) is communicated with the storage water tank (4) by water-carriage pipe. The storage water tank (4) has two water tanks arranged in parallel. The two storage water tanks (4) are installed side by side in the same level surface. Dividing water pipe (8) is joined to the bottom of two storage water tanks (4) by thread. A water tank cover (5) is installed on the upper part of each water tank. The discharging water connector (6) with thread is installed in the near bottom of one side of storage water tank (4). Dividing water bulkhead (11) which separates two outlets (9) in the bottom of dividing water pipe (8) is installed in the dividing water pipe (8). The upper part of dividing water bulkhead is direct linked with the discharging water pipe of bottle support which is cut seal cartridge (3) in the bottom of bottle support (1).

Description

FIELD OF THE INVENTION

The invention relates to a water supply system which is mainly used in various types of water dispensers as a combined device for storing, heating, freezing and supplying water to a water supply system, and in particular to a water supply system exclusively for water dispensers. Existing t operation description

With the continuous development of society, drinking fountains have been widely used and widely used as drinking water devices in people's daily life. There are many types of drinking fountains. For example, they can be divided into hot and cold (or called; water and heat). ) Water dispenser, single hot water dispenser, water dispenser with reverse osmosis water treatment device, etc .; structurally, it can be divided into vertical water dispenser, desktop water dispenser, etc. Existing drinking fountains have brought many conveniences to users. However, because the existing water dispenser is limited by its structure, its water supply devices are generally designed according to different structures. Although they are similar, they cannot be replaced with each other, causing many inconveniences to the producer, such as increasing production investment and increasing production. Cost, etc .; and the existing technical structure also leads to defects such as its compact structure, large volume, undesired cross-flow between hot and cold water, and leakage at the pipe joint. Object of the invention

The main purpose of the present invention is to provide a water supply system for drinking fountains. By adopting a side-by-side water tank structure and using a water distribution pipe with a water separating partition between the bottle holder and the water tank, the water supply system can better maintain the existing water supply system. While using the functions and advantages of the technology, it also has the advantages of compact structure, small occupied volume, no cross-flow between water tanks, excellent sealing effect, and suitability for various types of drinking fountains.

Another object of the present invention is to provide a special water distribution pipe used in a water dispenser special water supply system. The water supply system can complete the cold water tank of the water dispenser by providing a water distribution partition in the pipe and a drain pipe at the lower end of the pipe. While supplying water to the hot water tank, it can effectively avoid the cross-flow heat exchange between cold and hot water, so as to save energy, ensure that the temperature of the cold and hot water meets the design requirements, and the cold water tank and heat can be discharged through the drain pipe during maintenance. The remaining water in the water tank has a simple structure, Low production cost and other advantages.

It is still another object of the present invention to provide a two-way pipe isolation type drainage valve used in the water supply system for drinking fountains, so as to pass through its round-shaped valve core and a water valve structure that can simultaneously control the outlets of two discharge pipes. It can not only fulfill the function of draining the remaining water in the water tank of the water dispenser, but also has the advantages of excellent sealing effect, no cross-flow between hot and cold water, simple and practical structure, and few required parts. The shortcomings of the prior art are well overcome.

Yet another object of the present invention is to provide a water intake and return pipe used in the water supply system for drinking fountains. The air and water flow structure of the water supply system has a simple structure by providing a partition in the pipe and opening holes in the pipe wall. The advantages of practicality, low production cost, and ease of manufacture overcome the shortcomings of the prior art.

Still another object of the present invention is to provide a leak-proof joint with a simple structure and excellent sealing effect for a water supply system for drinking fountains, positioning a core pipe through a sealing rubber ring added in a female threaded pipe, and sealing the core pipe and tightening. The gap between the male threaded pipe enables the sealing rubber ring to effectively seal the joint under the squeeze of the male threaded pipe and the female threaded pipe, effectively overcomes the shortcomings of the prior art, has a simple structure, has an excellent sealing effect, and is used. Long life and other advantages. Brief description of the invention

According to an aspect of the present invention, a water supply device for a water dispenser is provided, which mainly includes a bottle holder, a water inlet pipe, a water storage tank, and a water outlet connector provided on the water storage tank. The water inlet pipe is installed in the bottle holder, and a water conveyance pipe is connected between the lower part of the water inlet pipe and the water storage tank. The storage tank adopts a double water tank side-by-side structure, and a water distribution pipe is connected to the bottom between the two water tanks by screwing. The upper mouth of each water tank is provided with a water tank cover, and a side of the water storage tank is provided near the bottom. Threaded water outlet. A water-dividing partition separating the two outlets at the bottom of the water-dividing pipe is arranged in the water-dividing pipe, and the upper mouth part is directly connected with the bottle-receiving water-pipe with a sealing sleeve sleeved on the bottom of the bottle-receiver.

According to one aspect of the present invention, a water distribution pipe used in a water supply device for a hot and cold water dispenser is provided. The upper end of the water distribution pipe is a complete round pipe, and the lower end is two threaded pipes connected to the cold water tank and the hot water tank of the water dispenser. Wherein, a partition is provided in the water dividing pipe, and the partition divides the space in the water dividing pipe into two independent channels. The upper end of the partition is lower than the upper end of the water dividing pipe, and Two drainage pipes are arranged at the lower end of the water pipe, and the drainage pipes are respectively connected with two independent channels in the water distribution pipe, and an air return pipe is arranged on the upper pipe wall of the water distribution pipe.

According to an aspect of the present invention, there is provided a two-way pipe isolation type drainage valve used in a water supply system for a water dispenser, which mainly includes a valve body, a valve core, and a sealing gel. Among them, two are arranged at the water inlet end of the valve body. Discharge pipe, the internal cavity of the valve is in the shape of a circular table, the outlets of the two discharge pipes are located on the circular table, and one end of the valve core is fixed with a circular table-shaped sealing rubber plug matching the internal cavity of the circular table, between the valve core and the valve body With threaded fit.

According to an aspect of the present invention, a water intake and return pipe used in a water supply system for a water dispenser is provided, which is mainly composed of a water inlet pipe and a hemisphere provided on the upper end of the pipe, wherein the water inlet pipe is provided to divide the space in the pipe. It is a two-part baffle. Water intake holes and air return holes are formed on the pipe wall near the end of the hemisphere. The water intake holes and the water return holes communicate with the two parts of the tube. The base of the water inlet pipe is provided with a water dispenser bottle. Supports mutually positioned threads.

According to one aspect of the present invention, a leak-proof joint used in a water supply system for a water dispenser is provided. The leak-proof joint is mainly composed of a male threaded pipe, a matched female threaded pipe, and a sealing rubber ring disposed therebetween. Wherein, a sealing core ring is provided in the female threaded tube of the leak-proof joint, and the core tube is integrated with the female threaded tube, and the outer diameter of the core tube is smaller than the inner diameter of the female threaded tube and smaller than that of the male threaded tube. An inner diameter and a sealant ring are disposed between the positioning core tube and the female threaded tube.

Because the water supply device for drinking fountains of the present invention adopts a side-by-side water tank structure and a water distribution pipe with a water separating partition between the bottle holder and the water tank, it has a compact structure, a small occupied volume, and no space between the water tank and the water tank. It has the advantages of generating a stream, excellent sealing effect, and being applicable to various types of water dispensers, and can better reduce the investment of producers and reduce the production cost of water dispensers, thereby effectively overcoming the shortcomings of the existing technology.

In addition, since the double-pipe isolation drain valve used in the water supply system for the water dispenser of the present invention uses a round-shaped valve core and a water valve structure that can control the outlets of two discharge pipes at the same time, it can be completed better. At the same time as the remaining water discharge function of the water tank of the water dispenser, it also has the advantages of excellent sealing effect, no cross-flow between hot and cold water, simple and practical structure, fewer required parts, long service life, and less leakage. The shortcomings of the prior art are well overcome.

The water intake and return pipe of the special water supply system of the water dispenser of the present invention adopts a partition provided in the water inlet pipe. Plate, which separates the pipeline into two independent channels, and has a gas-water flow structure with holes in the pipe wall, which has the advantages of simple and practical structure, low production cost, and easy manufacturing of products, which overcomes the existing technology well. The shortcoming is an ideal water intake and return pipe for the water dispenser.

Similarly, the leakproof joint of the water dispenser special water supply system of the present invention is provided with a sealing rubber ring positioning core tube in the female threaded tube, and a certain gap is left between the positioning core tube and the male threaded tube after tightening, so that Under the relative compression of the male and female threaded tubes, the sealing rubber ring will not produce irregular deformation, thereby effectively sealing the joint, effectively overcoming the shortcomings of the prior art, and having a simple structure, It has the advantages of excellent sealing effect and long service life. It is an ideal leakproof joint for drinking fountains. BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a schematic structural diagram of an embodiment of the present invention;

2a-2b are schematic structural diagrams of a water distribution pipe of the present invention;

FIG. 3 is a schematic structural diagram of a water outlet joint of the present invention.

FIG. 4 is a schematic structural diagram of a two-way pipe isolation type drain valve of a water dispenser of the present invention; FIG.

Fig. 5 is a schematic structural diagram of a water intake and return pipe dedicated to a water dispenser of the present invention.

The invention is further described below with reference to the drawings and embodiments. Description of the embodiments

As shown in Figures 1-3, the water supply device for drinking fountains of the present invention mainly includes a bottle holder 1, a water inlet pipe 2, a water storage tank 4, and a water outlet joint 6 provided on the water storage tank 4, wherein the water inlet pipe 2 The device is in the bottle holder 1, and there is a water pipeline between the lower part of the water inlet pipe 2 and the water storage tank 4. As can be seen from the figure, the two water storage tanks 4 for cold water and hot water are used. The double water tanks are arranged side by side in the horizontal direction so that the two water storage tanks 4 are on the same horizontal plane. A water distribution pipe 8 is connected to the bottom between the two water storage tanks 4 by screwing. A water tank cover 5 is provided at the upper mouth of each water tank. A threaded water outlet connector 6 is provided near the bottom of the side of the water storage tank 4. The water distribution pipe 8 is provided with a water separation partition plate 11 which separates two water outlets 9 at the bottom thereof, and the upper mouth portion is directly connected to the bottle support water discharge pipe with a sealing sleeve 3 at the bottom of the bottle support 1.所述分 The points The water pipe 8 is provided with a water dividing plate 11 which divides the space in the water dividing pipe into two independent channels. The upper end of the water dividing plate 11 is lower than the upper end of the water dividing pipe, and two lower sides of the water dividing pipe 8 are provided. A drainage pipe 10 with a drainage valve is installed at the root end, and the drainage pipes are respectively connected with two independent channels in the water distribution pipe, and an air return pipe 12 is provided on the upper pipe wall of the water distribution pipe 8.

The water outlet joint 6 is a threaded pipe provided with a female thread on an inner wall connected to the water storage tank 4. A positioning core pipe 7 for positioning a sealing rubber ring is provided in the threaded pipe. The core pipe is integrated with the threaded pipe, and the positioning core The outside diameter of the tube is smaller than the inside diameter of the mouth of the threaded tube.

A water tank exhaust pipe 13 is provided on the upper surface of the water tank cover of the water storage tank 8 and communicates with each other through a connection pipe 15. The return pipe 12 on the water distribution pipe 8 is also communicated with the above connection pipe 15 through a three-way pipe. The outlet end is provided with a check valve 14.

As shown in FIG. 2b, the water distribution pipe used in the special water supply system of the water dispenser of the present invention is a pipe-shaped component that supplies water to the cold water tank and the hot water tank in the hot and cold water dispenser, and the upper end is a complete round pipe for Connected to the water intake pipe in the bottle holder of the water dispenser, the lower end of the water pipe is two threaded pipes 26 respectively connected to the cold water tank and the hot water tank of the water dispenser. A partition plate 11 is provided in the above-mentioned water distribution pipe 8, and the partition plate 11 The internal space of the water distribution pipe 8 is divided into two independent channels 25 to achieve the isolation of cold water and hot water. The upper end of the partition plate 11 is lower than the upper end face of the water distribution pipe 8 so as to cover the water intake pipe in the water distribution pipe. Two drainage pipes 10 are arranged at the lower end of the water distribution pipe 8 respectively. The independent channels 25 communicate with each other, and the inner bottom surface of the drain pipe 10 is lower than the inner bottom surface of the threaded pipe 26 in order to fully remove the remaining water in the cold water tank and the hot water tank when repairing or storing hot and cold water dispensers; The upper pipe wall of the water pipe 8 is provided with an air return pipe 12, which is directly connected to the air return system of the water dispenser. In this embodiment, the water distribution pipe is fixed in the water dispenser through a positioning boss 23 provided on the pipe wall.

During work, the drinking water is divided into two by the partition after entering the water distribution pipe through the water intake pipe, and enters the cold water tank and the hot water tank respectively, and the external air enters the drinking bottle from the air return system through the air return pipe, and the partition effectively prevents Convective heat exchange between cold water and hot water is achieved. At the same time, the drain pipe is at the lowest end of the water storage system of the water dispenser, so the remaining water in the water storage system can be completely drained when necessary, thereby effectively achieving the object of the present invention. .

As shown in FIG. 4, the double-pipe isolated drainage used in the water supply system for the water dispenser of the present invention The valve mainly includes a valve body 31, a valve core 32 and a sealing rubber plug 35. Two discharge pipes 33 are provided at the water inlet end of the valve body 31. The inner cavity of the valve body 31 is a circular table, and the outlets 34 of the two discharge pipes 33 are located at On the circular table surface, a circular truncated seal rubber plug 35 matching with the circular truncated inner cavity is fixed to one end of the valve core 32, and a threaded fit is used between the valve core 32 and the valve body 31. The shape of the sealing rubber plug 35 adopts a circular truncated shape, and a small hole that can be matched with the positioning protrusion 37 on the valve core 32 is formed at the center of the large circular surface. The sealing rubber plug 35 is fixed through the small hole and the positioning protrusion 37. On the spool 32. The discharge pipe 33 on the valve body 31 is provided with a double-body hose 38 which can be matched with the water outlet of the water dispenser.

During operation, the drain valve is fixed on the water distribution pipe between the hot and cold water tanks of the water dispenser through a double body hose, and the valve core is screwed into the valve body through threads, and is set in a round table-shaped sealing rubber plug. The outlets of the two drainage pipes on the circular table on the internal cavity of the valve body are sealed; when drainage is required, the valve core can be simply loosened to smoothly discharge the hot and cold residual water in the water tank of the water dispenser. With the above structure, the hot and cold water tanks of the water dispenser can be sealed at the same time by using one drain valve, and the hot and cold water flow in the two drainage pipes can be effectively prevented, and the object of the present invention is better achieved.

As shown in FIG. 5, the water intake and return pipe of the water supply system for the water dispenser of the present invention is mainly composed of a water inlet pipe.

41 and a hemisphere 42 provided on the upper end of the water inlet pipe, the hemisphere is used to open a small inner cover in a drinking bottle, and the small inner cover is fastened to it, and the joint between the hemisphere and the water inlet pipe is grooved The lower end of the water inlet pipe is an opening. A partition plate 43 is provided in the water inlet pipe 41 to divide the space inside the pipe into two parts. Two water intake holes 44 and air return holes 45 are formed on the pipe wall near the end of the hemisphere 42. The hole 44 and the air return hole 45 communicate with the two parts of the tube space respectively to form a water intake channel and an air return channel. The base of the water inlet pipe 41 is provided with a thread 46 that can be mutually positioned with the bottle holder of the water dispenser so that it can be conveniently positioned. In the above bottle dispenser. The pipe wall near the lower end of the water inlet pipe 41 is also provided with a liquid seal hole 47 for adjusting the liquid level, and the liquid level of the water tank in the water dispenser can be effectively controlled through this hole.

When a drinking bottle with drinking water and a sealed small inner lid is placed on the water dispenser bottle holder, the upper hemisphere of the water inlet pipe opens the small inner lid, so that the water inlet pipe communicates with the bottle, and the drinking water passes through the inlet. The water intake hole on the water pipe enters the water tank of the water dispenser through the water intake channel in the water intake pipe. At the same time, the outside air enters the bottle through the air return pipe of the water intake pipe through the air return hole to balance the internal and external pressure. When the water level exceeds the height of the liquid sealing hole, outside air cannot enter the bottle, so a negative pressure is generated in the bottle, thereby preventing drinking water in the bottle from entering the dispenser.

As shown in FIG. 6, the leak-proof joint used in the water supply system for drinking fountains of the present invention is mainly composed of a male threaded pipe 54, a mating female threaded pipe 51, and a sealing rubber ring 53 disposed therebetween. The positioning thread tube 53 of the sealing rubber ring 52 is provided in the threaded tube 51 of the leak-proof joint. The positioning core tube 53 is integrated with the threaded tube 51. The outer diameter of the positioning core tube 53 is smaller than that of the threaded tube 51. The inner diameter of the mouth forms an annular fixed space between the two. The core tube is smaller than the inner diameter of the male threaded tube 54 at the same time. A sealing rubber ring 52 is located between the positioning core tube 53 and the female threaded tube 51. When the leakproof joint is used, the sealing rubber ring is deformed in the annular fixed space due to the rotary extrusion between the female threaded pipe and the male threaded pipe, and the sealing effect is achieved. The ring can only be slightly deformed to the gap opening between the male threaded tube and the positioning core tube, thereby further enhancing the sealing effect. Because the prior art does not have the positioning core tube, the sealing rubber ring will deform toward the center of the tube during extrusion, resulting in a poor sealing effect and a water leakage phenomenon. The technology of the present invention structurally eliminates the above water leakage phenomenon, thereby The shortcomings of the prior art are overcome.

In specific implementation, the two water storage tanks can be installed in various types of water dispensers and positioned by the support frame in the water dispensers. In different types of water dispensers, electric water pipes or heating pipes can be installed in the water storage tanks respectively. The compressor evaporates the tube to form a hot water tank or a cold water tank (also called a water tank), or it can be a normal temperature water tank without adding any devices. Because the above-mentioned water storage tank adopts a side-by-side method, it can be applied to both vertical and desktop water dispensers. At the same time, the water outlet joint adopts the positioning core tube of the sealing rubber ring in the pipe, which effectively prevents the joint from leaking, which is better achieved. The object of the present invention is achieved.

The water distribution pipe used in the special water supply system of the water dispenser of the present invention adopts a structure of a water separation baffle provided in the pipe and a drainage pipe provided at the lower end of the pipe, so that it can supply water to the cold water tank and hot water tank of the water dispenser at the same time It can effectively avoid the cross-flow heat exchange between cold and hot water, so as to achieve the purpose of saving energy, ensuring the temperature of cold and hot water to meet the design requirements, and conveniently draining the remaining water in the cold water tank and hot water tank through its drain pipe during maintenance. It also has the advantages of simple structure and low production cost.

The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. Those skilled in the art of 00 / can make various improvements and changes to the present invention without departing from the principles of the present invention. These improvements and changes belong to the scope of the present invention and are defined by the appended claims.

Claims

Rights request

1. A special water supply system for a water dispenser, comprising a bottle holder (1), a water inlet pipe (2), a water storage tank (4), and a water leakage prevention joint (6) provided on the water storage tank (4), wherein The water top pipe (2) is installed in the bottle holder (1), and the lower part of the water inlet pipe (2) and the water storage tank (4) are connected by a water conveyance pipe, which is characterized in that the two are used for containing The cold water and hot water storage tanks (4) adopt a double water tank side-by-side structure, so that the two water storage tanks (4) are arranged side by side on the same horizontal plane, and the bottom between the two water storage tanks (4) is connected by a thread. Water distribution pipe (8); the upper mouth of each water tank is provided with a water tank cover (5), and a water outlet (6) with a thread is provided near the bottom of the side of the water storage tank (4), and the above water distribution pipe (8 ) Is provided with a water separation baffle (11) which separates the two water outlets (9) at the bottom, and the upper mouth of the bottle holder is directly connected with the bottle holder (1) and the bottle holder water outlet pipe with a sealing sleeve (3) Connected.

The special water supply system for a water dispenser according to claim 1, characterized in that a water dividing wall (11) is provided in the water dividing pipe (8), which divides the space in the water dividing pipe into two independent In the channel, the upper end of the water dividing plate (11) is lower than the upper end surface of the water dividing pipe, and two drainage pipes (10) provided with drainage valves (16) at the lower ends of the water dividing pipe (8), and the drainage pipe (10) ) Are respectively connected with two independent channels in the water distribution pipe, and an air return pipe (12) is arranged on the upper pipe wall of the water distribution pipe (8).

The special water supply system for a water dispenser according to claim 1, characterized in that the water leakage preventing joint (6) is a threaded pipe provided with a female thread on an inner wall connected to the water storage tank (4), and the threaded pipe is inside the threaded pipe. A positioning core tube (7) for positioning the sealing rubber ring is provided. The core tube is integrated with the threaded tube. The outer diameter of the positioning core tube is smaller than the inner diameter of the threaded tube.

The special water supply system for a water dispenser according to claim 1, characterized in that the upper surface of the water tank cover of the water storage tank (8) is provided with a water tank exhaust pipe (13), and is connected to each other through a connecting pipe (15), The air return pipe (12) on the water pipe (8) is also connected to the connection pipe (15) through a three-way pipe, and a check valve (14) is provided at the gas outlet end of the connection pipe.

The special water supply system for a water dispenser according to claim 1, characterized in that the water storage tank (4) is provided with a two-way pipe isolation type drain valve, and the drain valve comprises a valve body (31) and a valve core (32) and a sealing rubber plug (35), two discharge pipes (33) are provided at the water inlet end of the valve body (31), the inner cavity of the valve body (31) is a circular table, and the outlets of the two discharge pipes (33) (34) located on the circular table surface, on the spool (32) A round truncated seal rubber plug (35) matching the circular truncated inner cavity is fixed at one end, and a threaded fit is used between the valve core (32) and the valve body (31).

The special water supply system for a water dispenser according to claim 5, characterized in that the shape of the sealing rubber plug (35) adopts a circular table shape, and the center of the large circular surface is provided with a valve core (32) for positioning. A small hole matched with the protrusion (37), and the sealing rubber plug (35) is fixed on the valve core (32) through the small hole and the positioning protrusion (37).

The special water supply system for a water dispenser according to claim 5 or 6, characterized in that the discharge pipe (33) on the valve body (31) is provided with a twin body that can be matched with the outlet of the water pipe of the water dispenser Hose (38).

The special water supply system for a water dispenser according to claim 2, characterized in that two drain pipes (10) are provided at the lower end of the water distribution pipe (8), and the drainage pipes are respectively two inside the water distribution pipe (8) The independent channels (25) communicate with each other, and the inner bottom surface of the drain pipe (10) is lower than the inner bottom surface of the threaded pipe (26).

The special water supply system for a water dispenser according to claim 2, characterized in that the water supply system has a water intake and return pipe, which is mainly composed of a water inlet pipe (41) and a hemisphere (42) provided at the upper end of the pipe. The water inlet pipe (41) is provided with a partition (43) that divides the space inside the pipe into two parts, and a water intake hole (44) and an air return hole (45) are opened on the pipe wall near the end of the hemisphere, and the water intake hole and the water return hole The two parts are respectively connected with the space in the pipe, and the base of the water inlet pipe (41) is provided with a thread (46) which can be mutually positioned with the bottle holder of the water dispenser.

The special water supply system for a water dispenser according to claim 9, characterized in that the water inlet pipe (41) of the water intake and return pipe is provided with a liquid seal hole for adjusting the liquid level on the pipe wall near the lower end.

(47).

The special water supply system for a water dispenser according to claim 3, wherein the leak-proof joint is mainly composed of a male threaded pipe (54), a mating threaded pipe (51), and provided between the two. It consists of a sealing rubber ring (52), and a positioning core tube (53) of the sealing rubber ring (52) is provided in the female threaded tube (51) of the leak-proof joint, and the core tube is integrated with the female threaded tube (51). The outer diameter of the core tube is smaller than the inner diameter of the female threaded tube (51), and smaller than the inner diameter of the male threaded tube (54). A seal ring (52) is provided between the positioning core tube (53) and the female threaded tube (51). )between.