Foldable three-opening test faucet

Abstract

The utility model relates to the technical field of faucets, in particular to a foldable three-opening test faucet. According to the technical scheme, the device comprises a base body pipe, a water outlet elbow and arm pipes, the arm pipes are distributed on the two sides of the body pipe, a four-way valve is installed at the joint of the arm pipes and the body pipe, the upper end of the base body pipe is fixed to the bottom of the four-way valve, the bottom of the water outlet elbow is connected to the upper end of the four-way valve, and a sealing rubber ring is arranged at the joint. A built-in rotating shaft is rotationally connected in the four-way valve in the horizontal direction, the two ends of the built-in rotating shaft are fixedly connected with the arm pipe through end sleeves, sealing rubber rings are arranged at the two ends of the built-in rotating shaft, and a positioning assembly is arranged between the rear side of the four-way valve and the built-in pipe. The extending arm pipes are turned over at the same time, the extending arm pipes and the water outlet bent pipe can be kept on the same plane, packaging, storage and transportation are convenient, when the cleaning device is installed beside a water pool, the arm pipes can be turned over, blocking caused by horizontal extending of the arm pipes when cleaning objects are placed in the water pool is avoided, and the cleaning effect is improved. And it is ensured that some large cleaning objects can be smoothly placed into the cleaning pool.

Description

Technical Field

[0001] The utility model relates to the technical field of faucets, in particular to a foldable three - port laboratory faucet. Background Technique

[0002] Laboratory faucets, also known as laboratory taps, are devices specifically used in laboratory environments. These faucets usually have some special designs and functions to meet specific needs in laboratories.

[0003] Among them, the outlet pipes of laboratory faucets are often more than one. During use, they are usually installed beside the sink, and the water pipe outlets extend forward to directly above the sink. In this process, when placing cleaning objects in the experiment into the sink, they may be blocked by the faucet, and some larger cleaning objects often cannot enter the sink. Moreover, with the arrangement of multiple water pipes, the extending directions may have certain differences. If there is a certain angle between the outlet elbow and the arm pipe, it will cause an increase in the occupied space of the entire faucet, causing certain trouble to its packaging and transportation. Content of the Utility Model

[0004] The purpose of the utility model is to provide a foldable three - port laboratory faucet to solve the problems raised in the above - mentioned background technique.

[0005] To achieve the above - mentioned purpose, the utility model provides the following technical solution: It includes a base main pipe, an outlet elbow, and arm pipes. The arm pipes are distributed on both sides of the outlet elbow, and a four - way valve is installed at the connection. The upper end of the base main pipe is fixed at the bottom of the four - way valve. The bottom of the outlet elbow is rotatably connected to the upper end of the four - way valve, and a rubber ring is arranged at the connection. A built - in pipe is horizontally rotatably connected inside the four - way valve. Both ends of the built - in pipe are fixedly connected to the arm pipes through end sleeves. Sealing rubber rings are arranged at both ends of the built - in rotating shaft. A positioning component is arranged between the rear side of the four - way valve and the built - in pipe.

[0006] Preferably, the positioning component includes a limit groove, a positioning hole, and a positioning screw. The limit groove is opened on the rear side arm of the four - way valve and is in a long - strip shape. The positioning threaded hole is opened on the rear side of the built - in pipe, and its position is aligned with both ends of the limit groove. The end of the positioning screw is threadedly connected into the positioning threaded hole.

[0007] Preferably, an outer groove is opened on the outer periphery of the middle position of the built - in pipe, and a perforation is opened at the middle position of the built - in pipe.

[0008] Preferably, the outer diameter of the built - in pipe is adapted to the inner diameter of the four - way valve. A set of sealing rings are installed on the outer sides of both ends of the built - in pipe, and the outer sides of the sealing rings are in contact with the inner wall of the four - way valve.

[0009] Preferably, a main valve knob is installed on the outlet elbow, and a sub - valve knob is installed on the arm pipe.

[0010] Preferably, water outlet nozzles are fixed at both the water outlet elbow and the water outlet of the arm tube. The water outlet nozzle is composed of three through balls, and the outer diameter decreases sequentially from top to bottom.

[0011] Preferably, the end sleeve is composed of a sub-tube connecting sleeve and an inner-tube connecting sleeve. The inner-tube connecting sleeve is fixed at the end of the built-in tube, the sub-tube connecting sleeve is fixed at the end of the arm tube, and one end where the inner-tube connecting sleeve and the sub-tube connecting sleeve are close to each other is fixed.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows: The extended arm tube can be flipped so that it can be in the same plane as the water outlet elbow, which is convenient for packaging, storage and transportation. And when installed beside the pool, the flipping can be utilized to avoid the blockage caused by the horizontally extended arm tube when cleaning objects are put into the pool, ensuring that some larger cleaning objects can also be smoothly put into the cleaning pool. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a front external structure schematic diagram of a foldable three-way laboratory faucet of the present utility model;

[0014] Figure 2 is a back external structure schematic diagram of a foldable three-way laboratory faucet of the present utility model;

[0015] Figure 3 is an overall assembly structure schematic diagram of a foldable three-way laboratory faucet of the present utility model;

[0016] Figure 4 is a front sectional structure schematic diagram of a foldable three-way laboratory faucet of the present utility model;

[0017] Figure 5 is an external structure schematic diagram of the built-in tube of a foldable three-way laboratory faucet of the present utility model;

[0018] Figure 6 is an assembly structure schematic diagram of the built-in tube and the arm tube of a foldable three-way laboratory faucet of the present utility model.

[0019] In the figure: 1, base main tube; 2, water outlet elbow; 21, main valve knob; 22, rubber ring; 3, arm tube; 31, sub-valve knob; 4, four-way valve; 41, limit groove; 5, built-in tube; 51, outer groove; 52, perforation; 53, sealing ring; 54, positioning threaded hole; 6, end sleeve; 61, sub-tube connecting sleeve; 62, inner-tube connecting sleeve; 7, positioning screw; 8, water outlet nozzle. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0021] Please refer to Figure 1-6 , the present utility model provides a technical solution: including a base main pipe 1, a water outlet elbow 2 and an arm pipe 3. The arm pipes 3 are distributed on both sides of the water outlet elbow 2, and a four-way valve 4 is installed at the connection. The upper end of the base main pipe 1 is fixed to the bottom of the four-way valve 4. The bottom of the water outlet elbow 2 is rotatably connected to the upper end of the four-way valve 4, and a rubber ring 22 is provided at the connection. An internal pipe 5 is rotatably connected horizontally in the four-way valve 4. Both ends of the internal pipe 5 are fixedly connected to the arm pipes 3 through end sleeves 6. A positioning component is provided between the rear side of the four-way valve 4 and the internal pipe 5. Water outlet nozzles 8 are fixed at the water outlet of the water outlet elbow 2 and the arm pipes 3. The water outlet nozzle 8 is composed of three through balls, and the outer diameter decreases sequentially from top to bottom. A main valve knob 21 is installed on the water outlet elbow 2, and a sub-valve knob 31 is installed on the arm pipe 3. The end sleeve 6 is composed of a sub-pipe connection sleeve 61 and an inner pipe connection sleeve 62. The inner pipe connection sleeve 62 is fixed to the end of the internal pipe 5, and the sub-pipe connection sleeve 61 is fixed to the end of the arm pipe 3. One end of the inner pipe connection sleeve 62 close to the sub-pipe connection sleeve 61 is fixed.

[0022] The positioning component includes a limit groove 41, a positioning hole and a positioning screw 7. The limit groove 41 is opened on the rear side arm of the four-way valve 4 and is in a long strip shape. The positioning threaded hole 54 is opened on the rear side of the internal pipe 5, and the position is aligned with both ends of the limit groove 41. The end of the positioning screw 7 is threadedly connected to the positioning threaded hole 54.

[0023] An outer groove 51 is opened on the outer periphery of the middle position of the internal pipe 5. A through hole 52 is opened at the middle position of the internal pipe 5. The outer diameter of the internal pipe 5 is adapted to the inner diameter of the four-way valve 4. A group of sealing rings 53 are installed on the outer sides of both ends of the internal pipe 5, and the outer sides of the sealing rings 53 are abutted against the inner wall of the four-way valve 4.

[0024] Working principle: After fixing the bottom of the base main pipe 1 beside the laboratory sink, since an outer groove 51 is provided at the middle position of the outer side wall of the inner pipe 5, the experimental water can enter the four-way valve 4 through the base main pipe 1, and then enter the outlet elbow 2 through the four-way valve 4. And because a perforation 52 is provided at the middle position of the inner pipe 5, the water in the four-way valve 4 can also enter the inner pipe 5 and enter the arm pipes 3 from both ends of the inner pipe 5 to ensure independent water supply for multiple water pipes. On this basis, since both ends of the arm pipe 3 are fixed to the inner pipe 5, it can be rotated. When it is rotated to the vertical state, the outlet elbow 2 and the arm pipe 3 can be in the same plane. When placing the cleaning object, there will be no blockage caused by the forward extension of the arm pipe 3, ensuring that larger cleaning objects can still be easily placed into the sink. During this process, when rotation is required, the positioning screw 7 can be removed to release the limit on the rotation of the inner pipe 5. And during the use of the arm pipe 3, the positioning screw 7 is installed into the positioning threaded hole 54 so that it is distributed at both ends of the limit groove 41 to prevent the random rotation of the inner pipe 5. The operation is simple and convenient. Even when the entire faucet is transported and packaged, the arm pipe 3 can be rotated to the same plane as the outlet elbow 2, which is convenient for packaging and transportation operations and reduces the occupied space.

[0025] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device. Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A foldable three-port laboratory faucet, comprising a base body tube (1), a water outlet elbow tube (2) and an arm tube (3), characterized in that: The arm pipe (3) is distributed on both sides of the water outlet elbow pipe (2), and a four-way valve (4) is installed at the connection point. The upper end of the base main body pipe (1) is fixed to the bottom of the four-way valve (4). The bottom of the water outlet elbow pipe (2) is rotatably connected to the upper end of the four-way valve (4), and a rubber ring (22) is provided at the connection point. An internal pipe (5) is rotatably connected in the horizontal direction inside the four-way valve (4). Both ends of the internal pipe (5) are fixedly connected to the arm pipe (3) through end sleeves (6), and a positioning component is provided between the rear side of the four-way valve (4) and the internal pipe (5).

2. The foldable three-port test faucet according to claim 1, characterized in that: The positioning assembly comprises a limiting groove (41), a positioning hole and a positioning screw (7); the limiting groove (41) is provided on the rear arm of the four-way valve (4) and is in the shape of an elongated strip; the positioning threaded hole (54) is provided on the rear side of the built-in tube (5) and is aligned with the two ends of the limiting groove (41); the end of the positioning screw (7) is threadedly connected in the positioning threaded hole (54).

3. The foldable three-port test faucet according to claim 1, characterized in that: An outer groove (51) is provided on the periphery of the middle position of the built-in tube (5), and a through hole (52) is provided on the middle position of the built-in tube (5).

4. The foldable three-port test faucet according to claim 1, characterized in that: The outer diameter of the built-in tube (5) is matched with the inner diameter of the four-way valve (4), and a group of sealing rings (53) are installed on the outer sides of both ends of the built-in tube (5), and the outer sides of the sealing rings (53) are against the inner wall of the four-way valve (4).

5. The foldable three-port test faucet according to claim 1, characterized in that: A main valve knob (21) is installed on the water outlet elbow (2), and an auxiliary valve knob (31) is installed on the arm pipe (3).

6. The foldable three-port test faucet according to claim 1, characterized in that: A water outlet nozzle (8) is fixed at the water outlet of the water outlet elbow (2) and the arm pipe (3); the water outlet nozzle (8) is composed of three through-hole balls, and the outer diameter decreases from top to bottom.

7. The foldable three-port test faucet according to claim 1, characterized in that: The end sleeve (6) is composed of a secondary pipe connecting sleeve (61) and an inner pipe connecting sleeve (62); the inner pipe connecting sleeve (62) is fixed to the end of the internal pipe (5); the secondary pipe connecting sleeve (61) is fixed to the end of the arm pipe (3); the inner pipe connecting sleeve (62) and the secondary pipe connecting sleeve (61) are fixed close to one end.

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