Foldable double linkage structure and faucet

Abstract

The utility model relates to laboratory faucet technical field provides a kind of foldable duplex linkage structure and faucet, including three-way valve body, the communicating pipe of opposite insertion in the two sides of three-way valve body, linkage plate is inserted between two communicating pipes, and the locking assembly of locking communicating pipe and three-way valve body. Limiting portion is formed in three-way valve body, when stirring communicating pipe, the communicating pipe of two sides simultaneously rotates relative to three-way valve body, limiting portion is formed with two oppositely arranged sector grooves, the angle between two sector grooves is 90 °, limiting portion is used to limit the rotation of linkage plate in sector groove. The utility model is by being provided with linkage plate between two communicating pipes, when stirring one communicating pipe rotation, the communicating pipe of two sides simultaneously rotates 90 °, the angle between the water inlet pipe of three-way valve and two communicating pipes can be adjusted, so that faucet is adhered in sink in folding state, does not occupy experiment table space, also increases the flexibility of faucet installation time.

Description

Technical Field

[0001] This utility model relates to the field of laboratory faucet technology, and particularly to a foldable double-linkage structure. This utility model also relates to a faucet equipped with this foldable double-linkage structure. Background Technology

[0002] Laboratory faucets serve as cleaning facilities in laboratories, used to rinse laboratory equipment, remove residual chemicals or other impurities, and prevent chemicals remaining in the equipment from reacting unexpectedly with subsequent reagents, leading to experimental errors or hazards.

[0003] Most existing laboratory faucets are installed on the lab benchtop, taking up valuable space. Furthermore, to increase user comfort and convenience, the faucets are angled towards the user, resulting in an angled installation point with the water pipe. This leads to significant space requirements during transport, causing inconvenience in shipping and packaging.

[0004] Furthermore, the fixed structure of the faucet and water pipe to the installation location makes the installation process in the laboratory very inconvenient. The bent faucet can easily cause interference with the installation tools, making it impossible to use electric installation tools. Manual wrenches are required for assembly, which increases the difficulty of installation and reduces the efficiency of installation. Utility Model Content

[0005] In view of this, the present invention aims to propose a foldable double-linkage structure that can fold the double water pipes inside the water tank, thereby reducing the area occupied.

[0006] To achieve the above objectives, the technical solution of this utility model is implemented as follows:

[0007] A foldable double-linkage structure includes a three-way valve body, connecting pipes inserted into both sides of the three-way valve body, a linkage plate inserted between the two connecting pipes, and a locking assembly for locking the connecting pipes to the three-way valve body.

[0008] The three-way valve body is formed with a limiting part. When the connecting pipe is moved, the connecting pipes on both sides rotate relative to the three-way valve body at the same time. The limiting part is formed with two oppositely arranged fan-shaped grooves.

[0009] The angle between the two sector slots is 90°;

[0010] The limiting part is used to limit the rotation of the linkage plate within the sector groove.

[0011] Furthermore, the locking assembly includes a tapered piece sleeved on the connecting pipe, and a lock nut screwed into the connecting pipe and the port of the three-way valve body;

[0012] The port of the three-way valve body is provided with a tapered hole that matches the tapered part, and the diameter of the tapered hole gradually decreases from the outer end to the inner end;

[0013] The lock nut is provided with a pressing plate, the pressing plate is provided with a through hole, and the pressing plate is sleeved on the outside of the connecting pipe;

[0014] The extrusion plate abuts against the end of the tapered member.

[0015] Furthermore, the tapered member includes an inclined section and a straight section;

[0016] There is a gap between the lock nut and the end of the three-way valve body.

[0017] Furthermore, the connecting pipe is provided with an annular groove, and a retaining ring is provided inside the groove;

[0018] The extrusion plate has an annular notch formed in the middle, and the retaining ring is disposed in the notch.

[0019] Furthermore, the three-way valve body includes a horizontal pipe and a vertical pipe connected vertically;

[0020] The limiting part includes a limiting plate disposed in the inner cavity of the horizontal tube;

[0021] The limiting plate is vertically disposed in the middle of the horizontal tube, and the inner cavity of the vertical tube is connected to the inner cavity of the horizontal tube.

[0022] Furthermore, the limiting plate includes a first baffle and a second baffle diagonally disposed in the inner cavity of the horizontal tube;

[0023] The first baffle, the second baffle, and the inner wall of the horizontal tube form two diagonally arranged first and second through slots;

[0024] The first through slot is connected to the second through slot, and the linkage plate is disposed in the first through slot and the second through slot.

[0025] Furthermore, the end of the connecting pipe is provided with a slot arranged radially, and the linkage plate includes two symmetrically arranged plug-in sections and a connecting section provided between the two plug-in sections;

[0026] The plug segment is inserted into the slot, and the linkage plate is also formed with two trapezoidal opening slots that are opposite to each other, and the opening slots are corresponding to the limiting plate.

[0027] Furthermore, the connecting pipe is also provided with several annular grooves with external openings, and a sealing ring is provided in the annular groove.

[0028] Compared with the prior art, this utility model has the following advantages:

[0029] The foldable double-linkage structure described in this utility model uses a linkage plate between two connecting pipes. When one connecting pipe is rotated, both connecting pipes on both sides rotate 90° simultaneously, so that the faucet fits snugly inside the water tank when folded, without occupying space on the experimental table, and also increases the flexibility of faucet installation.

[0030] Furthermore, by setting a limiting part in the three-way valve body and inserting a linkage plate between the two connecting pipes, it can effectively ensure that the rotation angle of the two connecting pipes reaches the predetermined angle, thereby improving the accuracy of the faucet's rotation position when it changes from the folded state to the working state.

[0031] Another objective of this utility model is to provide a faucet, which includes the foldable double linkage structure as described above, a connecting joint connected to the inlet of the three-way valve body, a bend connected to the outlet end of the connecting pipe, and a water outlet joint connected to the bend, wherein each bend is provided with a control valve for controlling the on / off state.

[0032] The faucet described in this utility model adopts the foldable double linkage structure as described above. By driving one of its bends connected to the connecting pipe, both bends can be rotated at the same angle simultaneously, which facilitates the transportation and use of the faucet, increases the space utilization rate of the laboratory, and facilitates packaging and transportation. Attached Figure Description

[0033] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings:

[0034] Figure 1 This is a three-dimensional structural diagram of the foldable double-linkage structure described in an embodiment of the present utility model;

[0035] Figure 2 This is a cross-sectional schematic diagram of the foldable double-linkage structure described in an embodiment of the present utility model;

[0036] Figure 3 This is a perspective view of the foldable double-linkage structure described in this embodiment of the utility model, excluding the three-way valve body;

[0037] Figure 4 This is a three-dimensional schematic diagram of the linkage plate described in an embodiment of the present utility model;

[0038] Figure 5 This is a right-side view of the three-way valve body according to an embodiment of the present invention;

[0039] Figure 6 for Figure 5 Schematic diagram of the cross section at point AA;

[0040] Figure 7 This is a three-dimensional schematic diagram of the lock nut described in an embodiment of the present utility model;

[0041] Figure 8 This is a three-dimensional schematic diagram of the faucet described in an embodiment of the present utility model.

[0042] Explanation of reference numerals in the attached figures:

[0043] 1. Three-way valve body; 2. Connecting pipe; 3. Linkage plate; 4. Locking assembly; 5. Limiting part; 6. Clearance; 7. Retaining ring; 8. Sealing ring; 9. Connecting joint; 10. Bend; 11. Water outlet joint; 12. Control valve;

[0044] 101. Tapered hole; 102. Horizontal tube; 103. Longitudinal tube;

[0045] 201. Groove; 202. Slot; 203. Annular groove;

[0046] 301. Insertion section; 302. Connecting section; 303. Opening slot;

[0047] 401. Conical part; 402. Lock nut;

[0048] 501, First baffle; 502, Second baffle; 503, First through groove; 504, Second through groove;

[0049] 4011. Inclined section; 4012. Straight section;

[0050] 4021, Extruded plate; 4022, Through hole; 4023, Notch. Detailed Implementation

[0051] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0052] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," and "back," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0053] Furthermore, in the description of this utility model, unless otherwise explicitly defined, the terms "installation," "connection," "joining," and "connector" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model in light of the specific circumstances.

[0054] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0055] This embodiment relates to a foldable double-linkage structure. In terms of the overall structure, as follows... Figures 1 to 3 As shown, the device includes a three-way valve body 1, connecting pipes 2 inserted opposite each other on both sides of the three-way valve body 1, a linkage plate 3 inserted between the two connecting pipes 2, and a locking assembly 4 for locking the connecting pipes 2 to the three-way valve body 1. A limiting part 5 is formed within the three-way valve body 1. When the connecting pipes 2 are moved, the connecting pipes 2 on both sides rotate simultaneously relative to the three-way valve body 1. The limiting part 5 has two opposing sector-shaped grooves formed within it; the angle between the two sector-shaped grooves is 90°. The limiting part 5 is used to limit the rotation of the linkage plate 3 within the sector-shaped grooves.

[0056] With the above design, the foldable double linkage structure of this embodiment, by setting a linkage plate between the two connecting pipes, when one of the connecting pipes is rotated, the connecting pipes on both sides rotate 90° at the same time, so that the faucet fits into the water tank in the folded state, without occupying the experimental table space, and also increases the flexibility of faucet installation.

[0057] Furthermore, by setting a limiting part 5 inside the three-way valve body 1 and inserting a linkage plate 3 between the two connecting pipes 2, it is possible to effectively ensure that the rotation angle of the two connecting pipes 2 reaches the predetermined angle, thereby improving the accuracy of the faucet's rotation position when it changes from the folded state to the working state.

[0058] Based on the above overall description, this embodiment presents an exemplary structure of the foldable double-linkage structure, such as... Figures 1 to 2 As shown, the connecting pipe 2 is formed into an L-shaped water pipe, and the two connecting pipes 2 are partially inserted into the two opposite interfaces of the three-way valve body 1, and the linkage plate 3 is inserted between the two connecting pipes 2.

[0059] As a preferred embodiment, such as Figure 2 , Figure 3 , Figure 7As shown, the locking assembly 4 includes a tapered member 401 sleeved on the connecting pipe 2, and a lock nut 402 screwed onto the connecting pipe 2 and the port of the three-way valve body 1. The port of the three-way valve body 1 is provided with a tapered hole 101 adapted to the tapered member 401, and the diameter of the tapered hole 101 gradually decreases from the outer end to the inner end. A pressing plate 4021 is provided inside the lock nut 402, and a through hole 4022 is provided inside the pressing plate 4021. The pressing plate 4021 is sleeved on the outside of the connecting pipe 2 and abuts against the end of the tapered member 401.

[0060] like Figure 2 As shown, the conical component 401 is a rotating conical block. The two conical components 401 respectively abut against the conical holes 101 at both ends of the three-way valve body 1. When the lock nut 402 is driven to gradually lock, the pressing plate 4021 acts on the end face of the conical component 401, gradually applying force to the conical component 401 into the conical hole 101. Due to the gradual pressing of the conical component 401 into the conical hole 101, the inclined surface force of the conical component 401 acts perpendicularly to the port of the three-way valve body. The three-way valve body 1 gives the conical component 401 a reaction force. The reaction force also acts on the circumference of the connecting pipe 2 through the conical component 401, thereby making the connecting pipe 2 firmly locked on the three-way valve body 1.

[0061] Furthermore, such as Figure 2 As shown, the tapered component 401 includes an inclined section 4011 and a straight section 4012, and the lock nut 402 has a gap 6 with the end of the three-way valve body 1. The gap 6 between the lock nut 402 and the end of the three-way valve body 1 facilitates adjustment of the locking force between the connecting pipe 2 and the three-way valve body 1. The inclined section 4011 abuts against the tapered hole, increasing the locking contact area and improving the locking effect. The straight section 4012 ensures that the locking component does not interfere with the tapered hole during the locking process, and also improves the structural manufacturability of the tapered component 401.

[0062] Furthermore, such as Figure 2 As shown, the connecting pipe 2 has an annular groove 201, and a retaining ring 7 is provided inside the groove 201. An annular notch 4023 is formed in the middle of the extrusion plate 4021, and the outer ring of the retaining ring 7 is located within the notch 4023. As described above, the lock nut 402, through the threaded connection force on the three-way valve, generates a thrust acting on the end face of the conical member 401, thus achieving a locking effect. However, the reaction force also acts entirely at the threaded connection. The notch 4023 and groove 201 are correspondingly positioned, forming an annular receiving cavity. The retaining ring 7 is located within this cavity. The action of the retaining ring 7 and the notch 4023 can resist part of the reaction force, reducing the tension at the threaded connection between the three-way valve body 1 and the lock nut 402, effectively extending the service life of the lock nut 402. Even if the threads of the lock nut 402 fail, the retaining ring 7 still prevents the conical member 401 from dislodging, avoiding injury to workers from the conical member 401 ejecting, thus improving safety.

[0063] like Figures 5 to 6 As shown, the three-way valve body 1 includes a horizontal pipe 102 and a vertical pipe 103 connected vertically. The limiting part 5 includes a limiting plate disposed in the inner cavity of the horizontal pipe 102. The limiting plate is vertically disposed in the middle of the horizontal pipe 102, and the inner cavity of the vertical pipe 103 communicates with the inner cavity of the horizontal pipe 102. The limiting plate is arranged radially along the horizontal pipe 102 to limit the rotation angle of the linkage plate 3.

[0064] Furthermore, such as Figure 4 and Figure 5 As shown, the limiting plate includes a first baffle 501 and a second baffle 502 diagonally disposed within the inner cavity of the horizontal tube 102. The first baffle 501, the second baffle 502, and the inner wall of the horizontal tube 102 form a fan-shaped groove, which includes two diagonally disposed first through grooves 503 and second through grooves 504. The first through groove 503 and the second through groove 504 are connected, and the linkage plate 3 is disposed within the first through groove 503 and the second through groove 504.

[0065] The first through slot 503 and the second through slot 504 are used to accommodate the rotation of the linkage plate 3 within the limiting plate. At the same time, the first baffle 501 and the second baffle 502 are provided to form a blockage on both sides of the linkage plate 3 in the width direction, which increases the accuracy and reliability of the two connecting pipes 2 rotating at the same angle at the same time, and avoids the linkage plate 3 from being deformed due to the operator's forceful manipulation, thus changing the limiting angle.

[0066] like Figure 4 As shown, the first through groove 503 and the second through groove 504 are formed into a fan-shaped structure, with the central angle of both the first through groove 503 and the second through groove 504 being 90°. By setting the fan-shaped structure, it is easier to manufacture and process, and it avoids interference between the linkage plate 3 and the three-way valve body 1 during rotation, thereby improving the flexibility of the linkage of the connecting pipe 2 during folding and use.

[0067] Furthermore, the end of the connecting pipe 2 is provided with a radially arranged slot 202, and the linkage plate 3 includes two symmetrically arranged insertion sections 301, and a connecting section 302 disposed between the two insertion sections 301. The insertion sections 301 are inserted into the slots 202, and the linkage plate 3 also has two opposing trapezoidal opening slots 303 formed on it, which are correspondingly arranged with the limiting plate. Figure 2 and Figure 4 As shown, the linkage plate 3 is formed into a planar plate structure. By setting a trapezoidal opening groove 303, the linkage plate 3 can move axially in the three-way valve body 1, avoiding interference between the linkage plate 3 and the limiting plate, which would cause the connecting pipe 2 to be stuck and unable to rotate.

[0068] In addition, to increase the sealing of the pipeline and prevent water leakage, such as Figure 2 As shown, the connecting pipe 2 is also provided with several annular grooves 203 with external openings, and a sealing ring 8 is provided in the annular grooves 203.

[0069] This embodiment also relates to a faucet, which includes the foldable double-linkage structure described above, a connecting joint 9 connected to the inlet of the three-way valve body 1, a bend 10 connected to the outlet end of the connecting pipe 2, and a water outlet joint 11 connected to the bend 10. Each bend 10 is provided with a control valve 12 for controlling the on / off state. The control valve 12 is a manually rotated switch, or it can be an electrically controlled shut-off valve, which can be controlled by sensors, PLC controllers, etc. to achieve automatic water dispensing.

[0070] The faucet in this embodiment adopts the above-mentioned foldable double linkage structure. By driving one of its bends 10 connected to the connecting pipe 2, both bends 10 can be rotated 90° simultaneously, making it easy for the faucet to be folded into the sink and increasing the space utilization of the laboratory.

[0071] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A foldable double-linkage structure, characterized in that: It includes a three-way valve body (1), a connecting pipe (2) inserted into both sides of the three-way valve body (1), a linkage plate (3) inserted between the two connecting pipes (2), and a locking assembly (4) for locking the connecting pipe (2) to the three-way valve body (1). The three-way valve body (1) has a limiting part (5) formed inside. When the connecting pipe (2) is moved, the connecting pipes (2) on both sides rotate relative to the three-way valve body (1) at the same time. The limiting part (5) has two oppositely arranged fan-shaped grooves formed inside; The angle between the two sector slots is 90°; The limiting part (5) is used to limit the rotation of the linkage plate (3) in the sector groove.

2. The foldable double-linkage structure according to claim 1, characterized in that: The locking assembly (4) includes a tapered piece (401) sleeved on the connecting pipe (2) and a lock nut (402) screwed to the port of the connecting pipe (2) and the three-way valve body (1). The port of the three-way valve body (1) is provided with a conical hole (101) that is adapted to the conical part (401), and the diameter of the conical hole (101) gradually decreases from the outer end to the inner end; The lock nut (402) is provided with a pressing plate (4021), the pressing plate (4021) is provided with a through hole (4022), and the pressing plate (4021) is sleeved on the outside of the connecting pipe (2); The extrusion plate (4021) abuts against the end of the conical member (401).

3. The foldable double-linkage structure according to claim 2, characterized in that: The tapered member (401) includes an inclined section (4011) and a straight section (4012). The lock nut (402) has a gap (6) with the end of the three-way valve body (1).

4. The foldable double-linkage structure according to claim 2, characterized in that: The connecting pipe (2) is provided with an annular groove (201), and a retaining ring (7) is provided in the groove (201). The extrusion plate (4021) has an annular notch (4023) formed in the middle, and the outer ring of the retaining ring (7) is located inside the notch (4023).

5. The foldable double-linkage structure according to claim 1, characterized in that: The three-way valve body (1) includes a horizontal pipe (102) and a vertical pipe (103) connected vertically. The limiting part (5) includes a limiting plate disposed in the inner cavity of the horizontal tube (102); The limiting plate is vertically disposed in the middle of the horizontal tube (102), and the inner cavity of the vertical tube (103) is connected to the inner cavity of the horizontal tube (102).

6. The foldable double-linkage structure according to claim 5, characterized in that: The limiting plate includes a first baffle (501) and a second baffle (502) diagonally arranged in the inner cavity of the horizontal tube (102); The first baffle (501), the second baffle (502) and the inner wall of the horizontal tube (102) form the fan-shaped groove, which includes a first through groove (503) and a second through groove (504). The first through groove (503) is connected to the second through groove (504), and the linkage plate (3) is disposed in the first through groove (503) and the second through groove (504).

7. The foldable double-linkage structure according to claim 5, characterized in that: The end of the connecting pipe (2) is provided with a slot (202) arranged in a radial direction, and the linkage plate (3) includes two symmetrically arranged plug sections (301) and a connecting section (302) provided between the two plug sections (301). The plug section (301) is inserted into the slot (202), and the linkage plate (3) is also formed with two trapezoidal opening slots (303) arranged opposite to each other, and the opening slots (303) are corresponding to the limiting plate.

8. The foldable double-linkage structure according to claim 7, characterized in that: The connecting pipe (2) is also provided with several annular grooves (203) with external openings, and a sealing ring (8) is provided in the annular grooves (203).

9. A faucet, characterized in that: The device includes a foldable double linkage structure as described in any one of claims 1 to 8, a connecting joint (9) connected to the inlet of the three-way valve body (1), a bend (10) connected to the outlet end of the connecting pipe (2), and a water outlet joint (11) connected to the bend (10). Each of the bends (10) is provided with a control valve (12) for controlling the on / off state.

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