Foldable duplex linkage structure and faucet

Abstract

The invention relates to the technical field of laboratory faucets, and provides a foldable duplex linkage structure and a faucet, the foldable duplex linkage structure comprises a three-way valve body, communicating pipes oppositely inserted on two sides of the three-way valve body, a linkage plate inserted between the two communicating pipes, and a locking assembly for locking the communicating pipes and the three-way valve body. Limiting parts are formed in the three-way valve bodies, when the communicating pipes are shifted, the communicating pipes on the two sides rotate relative to the three-way valve bodies at the same time, and the limiting parts are used for limiting the rotating angle of the linkage plate. According to the foldable duplex linkage structure, the linkage plate is arranged between the two communicating pipes, when one of the communicating pipes is stirred to rotate, the communicating pipes located on the two sides of the three-way valve body rotate by the same angle at the same time, the angle between the water inlet pipe of the three-way valve and the two communicating pipes can be adjusted, transportation is convenient, and the space is saved. In addition, the faucet can be in a working state and a folded state, the space of the experiment table is not occupied in the folded state, and the flexibility of installation of the faucet is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of laboratory faucets, and in particular to a foldable double linkage structure. The present invention also relates to a faucet provided with the foldable double linkage structure. Background Art

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

[0003] Most existing laboratory faucets are installed on the laboratory bench, taking up space on the bench. Furthermore, to increase user comfort and convenience, the faucet is tilted toward the user, causing the installation to be at an angle to the faucet's water pipe. This takes up a lot of space during transportation, causing inconvenience in transportation and packaging.

[0004] In addition, the fixed structure of the faucet water pipe and the installation part makes the installation process in the laboratory very inconvenient. The bent faucet can easily cause interference with the installation tools, making the electric installation tools unusable. Manual wrenches are required for assembly, which increases the difficulty of installation and reduces installation efficiency. Summary of the Invention

[0005] In view of this, the present invention aims to propose a foldable double linkage structure, so that the double water pipes can be folded, the occupied area can be reduced, and it is easy to install in the laboratory to avoid interference between the water pipes and installation tools.

[0006] To achieve the above object, the technical solution of the present invention is achieved as follows: A foldable double linkage structure, comprising a three-way valve body, connecting pipes inserted into two 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; A limiting portion is formed in the three-way valve body. 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 portion is used to limit the rotation angle of the linkage plate.

[0007] Furthermore, the locking assembly includes a tapered piece sleeved on the connecting pipe, and a lock nut screwed on the connecting pipe and the port of the three-way valve body; The port of the three-way valve body is provided with a tapered hole adapted to the tapered member, and the diameter of the tapered hole is gradually reduced from the outer end to the inner end; An extrusion plate is provided in the lock nut, a through hole is provided in the extrusion plate, and the extrusion plate is sleeved on the outside of the connecting pipe; The extrusion plate abuts against the end of the cone.

[0008] Furthermore, the tapered member includes an inclined surface section and a straight surface section; There is a gap between the lock nut and the end of the three-way valve body.

[0009] Furthermore, the connecting pipe is provided with an annular groove, and a retaining ring is provided in the groove; An annular notch is formed in the middle of the extrusion plate, and the outer ring of the retaining ring is located in the notch.

[0010] Furthermore, the three-way valve body includes a horizontal pipe and a vertical pipe connected vertically; The limiting portion includes a limiting plate provided in the inner cavity of the transverse tube; The limiting plate is vertically arranged at the middle of the transverse tube, and the inner cavity of the longitudinal tube is communicated with the inner cavity of the transverse tube.

[0011] Furthermore, the limiting plate includes a first baffle and a second baffle diagonally arranged in the inner cavity of the transverse tube; The first baffle, the second baffle and the inner wall of the transverse tube are formed with two diagonally arranged first through slots and a second through slot; The first through slot is communicated with the second through slot, and the linkage plate is disposed in the first through slot and the second through slot.

[0012] Furthermore, the first through groove and the second through groove are formed into a fan-shaped structure; The central angle of the first through groove and the central angle of the second through groove are both 90°.

[0013] Furthermore, the end of the connecting pipe is provided with a slot arranged in a radial direction, and the linkage plate includes two symmetrically arranged plug-in sections and a connecting section arranged between the two plug-in sections; The plug-in section is inserted into the slot, and the linkage plate is further formed with two relatively trapezoidal opening slots, which are arranged corresponding to the limiting portion.

[0014] Furthermore, the communicating pipe is provided with a plurality of annular grooves with outer openings, and sealing rings are provided in the annular grooves.

[0015] Compared with the prior art, the present invention has the following advantages: The foldable double linkage structure of the present invention employs a linkage plate disposed between two connecting pipes. When one connecting pipe is rotated, the connecting pipes on both sides of the three-way valve body simultaneously rotate to the same angle. This allows for adjustable angles between the water inlet pipe connected to the three-way valve inlet and the two connecting pipes, improving the ease of use of the faucet. The faucet can be operated and folded, and in the folded state, it takes up no bench space, increasing the flexibility of faucet installation. The angle between the three-way valve and the connecting pipe can also be adjusted during packaging and transportation, facilitating transportation.

[0016] In addition, by setting a limit 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 a predetermined angle, thereby improving the position accuracy of the faucet when rotating from the folded state to the working state.

[0017] Another object of the present invention 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, and each of the bends is provided with a control valve for controlling on and off.

[0018] The faucet described in the present invention adopts the foldable double-linked structure as described above, and can realize the simultaneous rotation of the two bent pipes to the same angle by driving one of the bent pipes connected to the connecting pipe, which facilitates the transportation and use of the faucet, increases the space utilization rate of the laboratory, and facilitates packaging and transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings, which constitute part of the present invention, are provided to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are provided to explain the present invention and do not constitute an undue limitation of the present invention. In the accompanying drawings: Figure 1 This is a schematic diagram of the three-dimensional structure of the foldable double linkage structure according to an embodiment of the present invention; Figure 2 A schematic cross-sectional view of a foldable double linkage structure according to an embodiment of the present invention; Figure 3 This is a three-dimensional schematic diagram of the foldable double linkage structure according to an embodiment of the present invention, excluding the three-way valve body; Figure 4 A three-dimensional schematic diagram of a linkage plate according to an embodiment of the present invention; Figure 5 It is a schematic right side view of a three-way valve body according to an embodiment of the present invention; Figure 6 for Figure 5 Schematic cross-sectional view at AA in the middle; Figure 7This is a three-dimensional schematic diagram of a lock nut according to an embodiment of the present invention; Figure 8 This is a three-dimensional schematic diagram of a faucet according to an embodiment of the present invention.

[0020] Description of reference numerals: 1. Three-way valve body; 2. Connecting pipe; 3. Linkage plate; 4. Locking assembly; 5. Limiting part; 6. Gap; 7. Retaining ring; 8. Sealing ring; 9. Connecting joint; 10. Elbow; 11. Water outlet joint; 12. Control valve; 101, tapered hole; 102, horizontal tube; 103, vertical tube; 201, groove; 202, slot; 203, annular groove; 301, plug-in section; 302, connecting section; 303, opening slot; 401, tapered piece; 402, lock nut; 501, first baffle; 502, second baffle; 503, first through slot; 504, second through slot; 4011, inclined section; 4012, straight section; 4013, notch; 4021. Extruded plate; 4022. Through hole; 4023. Notch. DETAILED DESCRIPTION

[0021] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0022] In the description of the present invention, it should be noted that the terms "upper," "lower," "inner," and "back" and other terms indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] Furthermore, in the description of the present invention, unless otherwise expressly defined, the terms "mounted," "connected," "connect," and "connector" should be interpreted broadly. For example, these terms may refer to fixed, removable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediary; or internal communication between two components. Those skilled in the art will appreciate the specific meanings of these terms in the present invention based on the specific circumstances.

[0024] The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0025] This embodiment relates to a foldable double linkage structure, the overall structure of which is as follows: Figures 1 to 3 As shown, it includes a three-way valve body 1, connecting pipes 2 inserted 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 that locks the connecting pipes 2 to the three-way valve body 1. A limit portion 5 is formed in the three-way valve body 1. When the connecting pipe 2 is moved, the connecting pipes 2 on both sides rotate simultaneously relative to the three-way valve body 1. The limit portion 5 is used to limit the rotation angle of the linkage plate 3.

[0026] Through the above design, the foldable double linkage structure of this embodiment, by providing a linkage plate 3 between the two connecting pipes 2, when one connecting pipe 2 is rotated, the connecting pipes 2 located on both sides of the three-way valve body 1 simultaneously rotate to the same angle, which can achieve an adjustable angle between the water inlet pipe connected to the three-way valve inlet and the two connecting pipes 2, improving the convenience of using the faucet, allowing the faucet to be in working state and folded state, and in the folded state, it does not occupy laboratory bench space, and also increases the flexibility of faucet installation. The angle between the three-way valve and the connecting pipe can also be adjusted during packaging and transportation, making it easier to transport.

[0027] In addition, by setting a limit part 5 in the three-way valve body 1 and inserting the linkage plate 3 between the two connecting pipes 2, it can effectively ensure that the rotation angle of the two connecting pipes 2 reaches a predetermined angle, thereby improving the position accuracy of the faucet when rotating from the folded state to the working state.

[0028] Based on the above overall introduction, an exemplary structure of the foldable double linkage structure of this embodiment is as follows: Figures 1 to 2 As shown, the connecting pipe 2 is formed into an L-shaped water pipe, two connecting pipes 2 are partially inserted into two opposite interfaces of the three-way valve body 1, and the linkage plate 3 is inserted between the two connecting pipes 2.

[0029] As a preferred embodiment, Figure 2 、 Figure 3 、 Figure 7 As shown, the locking assembly 4 includes a tapered member 401 that is sleeved onto the connecting tube 2, and a lock nut 402 that is threaded onto the connecting tube 2 and the ports of the three-way valve body 1. The port of the three-way valve body 1 is provided with a tapered hole 101 that mates with the tapered member 401, with the diameter of the tapered hole 101 gradually decreasing from the outer end to the inner side. An extrusion plate 4021 is provided within the lock nut 402, which has a through hole 4022 therein. The extrusion plate 4021 is sleeved onto the outside of the connecting tube 2 and abuts the end of the tapered member 401. The extrusion plate 4021 is annular in shape, and the lock nut 402 and the extrusion plate 4021 are integrally formed.

[0030] like Figure 2As shown, the conical member 401 is a rotating conical block, and the two conical members 401 are respectively abutted 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 extrusion plate 4021 acts on the end face of the conical member 401, gradually applying force to the conical member 401 into the conical hole 101. Due to the gradual extrusion of the conical hole 101 by the conical member 401, the inclined surface force of the conical member 401 is vertically directed to the port of the three-way valve body. The three-way valve body 1 gives the conical member 401 a reaction force, and the reaction force also acts on the circumference of the connecting pipe 2 through the conical member 401, so that the connecting pipe 2 is firmly locked on the three-way valve body 1.

[0031] Further, if Figure 2 As shown, the tapered member 401 includes an inclined surface section 4011 and a straight surface section 4012. A gap 6 is formed between the lock nut 402 and the end of the three-way valve body 1. Providing 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 surface section 4011 abuts the tapered hole, increasing the locking contact area and improving the locking effect. The straight surface section 4012 prevents interference between the locking member and the tapered hole during the locking process, further improving the structural manufacturability of the tapered member 401.

[0032] In addition, if Figure 3 As shown, the conical member 401 also includes a notch 4013 running through its thickness, and the notch 4013 is connected to the inner hole of the conical member 401. When the conical member 401 is squeezed, the conical member 401 is partially deformed due to the circumferential reaction force of the three-way valve body 1. The setting of the notch 4013 provides a deformation space for the conical member 401, thereby increasing the contact area between the conical member 401 and the connecting pipe 2, and increasing the friction between the connecting pipe 2 and the conical member 401, and between the conical member 401 and the three-way valve body 1, so that the connecting pipe 2 can remain in the working state when it rotates to the working state, avoiding relative rotational movement between the connecting pipe 2 and the three-way valve body 1, and the conical member 401 plays a damping role.

[0033] Further, if Figure 2As shown, the connecting pipe 2 is provided with an annular groove 201, within which a retaining ring 7 is disposed. An annular notch 4023 is formed in the middle of the extrusion plate 4021, with the outer ring of the retaining ring 7 located within the notch 4023. As described above, the threaded connection force of the lock nut 402 on the three-way valve generates a thrust acting on the end face of the tapered member 401, thereby achieving a locking effect. However, the reaction force also acts entirely on the threaded connection. The notch 4023 corresponds to the groove 201, forming an annular accommodating chamber with the retaining ring 7. The action of the retaining ring 7 and the notch 4023 can partially resist 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 thread of the lock nut 402 fails, the retaining ring 7 still prevents the tapered member 401 from dislodging, preventing the tapered member 401 from popping out and causing harm to personnel, thereby improving safety.

[0034] like Figures 5 and 6 As shown, the three-way valve body 1 includes a transverse tube 102 and a longitudinal tube 103 connected vertically. The limiting portion 5 includes a limiting plate disposed within the inner cavity of the transverse tube 102. The limiting plate is disposed perpendicularly in the middle of the transverse tube 102, and the inner cavity of the longitudinal tube 103 communicates with the inner cavity of the transverse tube 102. The limiting plate is disposed radially along the transverse tube 102 to limit the rotation angle of the linkage plate 3.

[0035] Further, if Figure 4 and Figure 5 As shown, the stop plate includes a first baffle 501 and a second baffle 502 disposed diagonally within the interior of the transverse tube 102. The first baffle 501, the second baffle 502, and the inner wall of the transverse tube 102 are formed with two diagonally disposed first through-slots 503 and second through-slots 504. The first through-slots 503 and the second through-slots 504 are interconnected, and the linkage plate 3 is disposed within the first through-slots 503 and 504.

[0036] The first through slot 503 and the second through slot 504 are used to accommodate the linkage plate 3 to rotate in the limit plate. At the same time, the first baffle 501 and the second baffle 502 are provided to form a block on both sides of the width direction of the linkage plate 3, thereby increasing the accuracy and reliability of the two connecting pipes 2 rotating at the same angle at the same time, and avoiding the deformation of the linkage plate 3 and the change of the limit angle due to the operator's forceful manipulation.

[0037] like Figure 5 As shown, the first through-slot 503 and the second through-slot 504 are formed into a fan-shaped structure, with the central angle of the first through-slot 503 and the central angle of the second through-slot 504 both being 90°. The fan-shaped structure facilitates production and processing, prevents interference between the linkage plate 3 and the three-way valve body 1 during rotation, and improves the flexibility of the linkage of the connecting pipe 2 during folding and use.

[0038] In addition, 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-in sections 301 and a connecting section 302 arranged between the two plug-in sections 301. The plug-in sections 301 are inserted into the slot 202, and the linkage plate 3 is also formed with two relatively trapezoidal openings 303, which are arranged corresponding to the limiting portion 5. Figure 2 and Figure 4 As shown, the linkage plate 3 is formed into a flat plate structure, and the trapezoidal opening groove 303 is provided to avoid interference between the linkage plate 3 and the limit plate, which would cause the connecting pipe 2 to be stuck and unable to rotate.

[0039] In addition, in order to increase the sealing of the pipeline and avoid water leakage, such as Figure 2 As shown, the connecting pipe 2 is further provided with a plurality of annular grooves 203 with outer openings, and a sealing ring 8 is provided in the annular groove 203 .

[0040] This embodiment also relates to a faucet, which includes the foldable double-linkage structure as 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 and off, and the control valve 12 is a manually rotated switch.

[0041] The faucet of this embodiment adopts the above-mentioned foldable double-linked structure, which can realize the simultaneous rotation of the two curved pipes 10 to the same angle by driving one of the curved pipes 10 connected to the connecting pipe 2, thereby facilitating the transportation, placement and use of the faucet and improving the convenience of using the faucet.

[0042] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A foldable double linkage structure, characterized by: It comprises a three-way valve body (1), connecting pipes (2) relatively plugged into two sides of the three-way valve body (1), a linkage plate (3) plugged between the two connecting pipes (2), and a locking assembly (4) for locking the connecting pipes (2) and the three-way valve body (1); A limiting portion (5) is formed in the three-way valve body (1). 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 portion (5) is used to limit the rotation angle of the linkage plate (3).

2. The foldable double linkage structure according to claim 1, characterized in that: The locking assembly (4) comprises a conical member (401) sleeved on the connecting pipe (2), and a lock nut (402) threadedly connected to the connecting pipe (2) and the ports 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) is gradually reduced from the outer end to the inner end; An extrusion plate (4021) is provided in the lock nut (402), a through hole (4022) is provided in the extrusion plate (4021), and the extrusion 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 conical member (401) comprises an inclined surface section (4011) and a straight surface section (4012); There is a gap (6) between the lock nut (402) and 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); 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 in the notch (4023).

5. The foldable double linkage structure according to claim 1, characterized in that: The three-way valve body (1) comprises a horizontal pipe (102) and a vertical pipe (103) connected vertically; The limiting portion (5) comprises a limiting plate provided in the inner cavity of the transverse tube (102); The limiting plate is vertically arranged in the middle of the transverse tube (102), and the inner cavity of the longitudinal tube (103) is communicated with the inner cavity of the transverse tube (102).

6. The foldable double linkage structure according to claim 5, characterized in that: The limiting plate comprises a first baffle (501) and a second baffle (502) which are arranged diagonally in the inner cavity of the transverse tube (102); The first baffle (501), the second baffle (502) and the inner wall of the transverse tube (102) are formed with two diagonally arranged first through grooves (503) and a second through groove (504); The first through slot (503) is communicated with the second through slot (504), and the linkage plate (3) is arranged in the first through slot (503) and the second through slot (504).

7. The foldable double linkage structure according to claim 6, characterized in that: The first through groove (503) and the second through groove (504) are formed into a fan-shaped structure; The central angle of the first through groove (503) and the central angle of the second through groove (504) are both 90°.

8. The foldable double linkage structure according to claim 1, 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) comprises two symmetrically arranged plug-in sections (301) and a connecting section (302) arranged between the two plug-in sections (301); The plug-in section (301) is inserted into the slot (202), and the linkage plate (3) is further formed with two relatively trapezoidal opening slots (303), the opening slots (303) being arranged corresponding to the limiting portion (5).

9. The foldable double linkage structure according to claim 8, characterized in that: The connecting pipe (2) is further provided with a plurality of annular grooves (203) with outer openings, and a sealing ring (8) is provided in the annular groove (203).

10. A faucet, characterized in that: A foldable double linkage structure comprising any one of claims 1 to 9, 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 curved pipes (10) is provided with a control valve (12) for controlling on and off.

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