Waste liquid collecting device of liquid chromatograph

Abstract

The utility model belongs to the technical field of liquid chromatographs, and discloses a liquid chromatograph waste liquid collecting device which comprises a vertical frame, a collecting barrel and a waste liquid guide pipe, the top end of the vertical frame is fixedly connected with a supporting frame, the top end of the collecting barrel is communicated with a swing pipe, and the top end of the swing pipe is rotatably communicated with a universal joint. According to the waste liquid collecting device, waste liquid in the collecting barrel can be conveniently discharged, the two guide rods are pushed to move under the synchronous operation of the two electric push rods, the collecting barrel slides in the two sliding grooves through the two guide wheels, at the moment, the collecting barrel is in an inclined state, and then the liquid discharging pipe at the bottom of the collecting barrel is opened to discharge the waste liquid; when the collecting barrel is in an inclined state, the first gear is also meshed with the second gear at the moment, when the interior of the collecting barrel is flushed, the treating fluid can be conveyed into the flushing pipe through the treating fluid guide pipe, the flushing pipe rotates in the collecting barrel under the operation of the motor, and comprehensive flushing can be achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of liquid chromatographs, and specifically relates to a waste liquid collection device for a liquid chromatograph. Background Art

[0002] A liquid chromatograph is an instrument that uses the difference in the distribution ratio of a mixture between a liquid-solid or two immiscible liquids to separate the mixture first and then analyze and identify it. During actual use, a corresponding waste liquid collection device is required to collect the waste liquid generated during its use.

[0003] According to the patent with the patent number CN219296262U, a waste liquid collection device for a liquid chromatograph is disclosed, which includes a collection bucket and a liquid inlet assembly. A tray is provided at the lower end of the collection bucket, a pull rod is provided on one side of the upper end of the tray, and multiple sets of moving wheels are connected to the lower end of the tray. When in use, a liquid inlet assembly is connected to the upper end of the collection bucket, and when the collection bucket is full, an upper cover is connected to the upper end. Labels and handles are provided on the outside of the collection bucket. An inner interface is provided on the right side of the collection bucket, an outer interface is provided outside the inner interface, and a one-way valve plug is connected inside the inner interface. The liquid inlet assembly consists of a control valve, a filter, a one-way valve, a liquid inlet pipe, a three-way joint, and a liquid distribution joint. A filter is connected to one side of the control valve, a one-way valve is provided at the upper end of the filter, a liquid inlet pipe is connected to the upper end of the control valve, multiple sets of three-way joints are connected to the liquid inlet pipe, a liquid distribution joint is provided on the three-way joint, and an installation frame is connected to the outside of the three-way joint.

[0004] Although the above-disclosed device can collect the waste liquid of multiple liquid chromatographs at the same time, when the waste liquid in the collection bucket is discharged for treatment, it needs to be removed from the liquid inlet assembly, and when flushing the inside of the collection bucket, it also needs to be carried out separately. This not only increases the overall disassembly and assembly operation time but also makes it difficult to collect the subsequent waste liquid in a timely manner. Therefore, we provide a waste liquid collection device for a liquid chromatograph to solve the above problems. Content of the Utility Model

[0005] To solve the problems raised in the above background art, the utility model provides a waste liquid collection device for a liquid chromatograph.

[0006] To achieve the above object, the present utility model provides the following technical solutions: A waste liquid collection device for a liquid chromatograph, comprising a vertical frame, a collection bucket, and a waste liquid conduit. A support frame is fixedly connected to the top end of the vertical frame. A swing pipe is communicated with the top end of the collection bucket. The top end of the swing pipe is rotationally communicated with a universal joint, and the universal joint is embedded in the top end of the support frame. The bottom end of the waste liquid conduit is communicated with the top end of the universal joint. Sliding grooves are formed in both the front and back surfaces of the vertical frame, and electric push rods are hinged. Two opposite guide rods are fixedly connected to the surface of the collection bucket. A guide wheel is rotatably connected to each guide rod, and the guide wheel is slidably arranged in the corresponding sliding groove. The telescopic ends of the two electric push rods are respectively sleeved on the two guide rods.

[0007] In the above technical solution, preferably, a flushing pipe is arranged inside the collection bucket, and the bottom end of the flushing pipe extends through to the lower part of the collection bucket. A plurality of spray holes are formed in the surface of the flushing pipe, and a one-way valve is installed at the bottom end of the flushing pipe.

[0008] In the above technical solution, preferably, the bottom end of the flushing pipe is rotatably connected to the bottom of the collection bucket through a sealed bearing. A first gear is fixedly connected to the surface of the bottom end of the flushing pipe. The bottom end of the flushing pipe is rotationally communicated with a rotary joint. The bottom end of the rotary joint is communicated with a treatment liquid conduit. A motor is installed on the inner wall of the vertical frame. The output end of the motor is fixedly connected to a second gear, and the second gear meshes with the first gear.

[0009] In the above technical solution, preferably, a positioning frame is fixedly connected to the surface of the rotary joint, and the top end of the positioning frame is fixedly connected to the bottom of the collection bucket.

[0010] In the above technical solution, preferably, two guide grooves are formed in the inner bottom wall of the vertical frame.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] 1. Through the cooperation of the vertical frame, the support frame, the collection bucket, the waste liquid conduit, the universal joint, the swing pipe, the guide wheel, the electric push rod, the sliding groove, and the guide rod, the present utility model can facilitate the discharge of the waste liquid in the collection bucket. Only by using the synchronous operation of the two electric push rods to push the two guide rods to move, the collection bucket slides in the two sliding grooves through the two guide wheels. At this time, the collection bucket is in an inclined state, and then the drain pipe at the bottom of the collection bucket is opened to discharge the waste liquid. Without disassembling the collection bucket, the waste liquid in the collection bucket can be conveniently discharged.

[0013] 2. With the coordinated arrangement of the motor, flushing pipe, spray holes, one-way valve, first gear, rotary joint, treatment liquid conduit, positioning bracket, and second gear, when the collection bucket is in an inclined state, the first gear is also engaged with the second gear at this time. When flushing the inside of the collection bucket, the treatment liquid can be conveyed into the flushing pipe through the treatment liquid conduit, and the second gear drives the first gear to rotate under the operation of the motor, further realizing the rotation of the flushing pipe inside the collection bucket, thus achieving a comprehensive flushing. The flushed wastewater can be directly discharged from the drain pipe at the bottom of the collection bucket, facilitating the timely collection of the subsequent waste liquid. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic structural view of the present utility model;

[0015] Figure 2 is a front view structural schematic of the present utility model;

[0016] Figure 3 is a schematic structural view of the collection bucket of the present utility model;

[0017] Figure 4 is a schematic view of the internal structure of the collection bucket of the present utility model;

[0018] Figure 5 is a schematic structural view of the flushing pipe of the present utility model;

[0019] Figure 6 of the present utility model Figure 1 is an enlarged schematic view of the structure at A in

[0020] In the figure: 1, vertical frame; 2, support frame; 3, collection bucket; 4, waste liquid conduit; 5, universal joint; 6, swing pipe; 7, guide wheel; 8, electric push rod; 9, sliding groove; 10, guide rod; 11, motor; 12, flushing pipe; 13, spray holes; 14, one-way valve; 15, first gear; 16, rotary joint; 17, treatment liquid conduit; 18, positioning bracket; 19, second gear. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described 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. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0022] Such as Figures 1 to 6As shown in the figure, the utility model provides a waste liquid collection device for a liquid chromatograph, which includes a vertical frame 1, a collection bucket 3 and a waste liquid conduit 4. The waste liquid conduit 4 is used for uniformly guiding and transporting the waste liquid of multiple liquid chromatographs. The top of the vertical frame 1 is fixedly connected with a support frame 2. The top of the collection bucket 3 is communicated with a swing pipe 6. The top of the swing pipe 6 is rotationally communicated with a universal joint 5, and the universal joint 5 is embedded in the top of the support frame 2. The universal joint 5 is an existing mature technology, which not only ensures the stability of the collection bucket 3, but also ensures that the collection bucket 3 can swing through the connection between the swing pipe 6 and the universal joint 5, so that the use of the collection bucket 3 is more flexible, facilitating the subsequent opening of the drain pipe at the bottom of the collection bucket 3 to drain the waste liquid inside. The bottom end of the waste liquid conduit 4 is connected and communicated with the top end of the universal joint 5, and can transport the uniformly guided waste liquid through the universal joint 5. Moreover, the bottom end of the waste liquid conduit 4 is fixedly connected and communicated with the top end of the universal joint 5, while the universal joint 5 and the swing pipe 6 are movably connected and communicated. The front and back surfaces of the vertical frame 1 are both provided with sliding grooves 9 and hinged with electric push rods 8. The radian of the sliding groove 9 is the same as the swinging angle of the collection bucket 3. Two opposite guide rods 10 are fixedly connected to the surface of the collection bucket 3. A guide wheel 7 is rotatably connected to each guide rod 10, and the guide wheel 7 is slidably arranged in the corresponding sliding groove 9, enabling the collection bucket 3 to be supported on the vertical frame 1 to ensure the normal swinging of the collection bucket 3. The telescopic ends of the two electric push rods 8 are respectively sleeved on the two guide rods 10. With the above structure, it is possible to conveniently drain the waste liquid in the collection bucket 3 without disassembling the collection bucket 3. Only by controlling the operation of the electric push rod 8 to push the guide rod 10 to move, and then pushing the collection bucket 3 to swing around the bottom end of the universal joint 5, it is beneficial to drain all the waste liquid in the collection bucket 3, and the operation is more flexible. The machinery, parts and equipment in this device all adopt conventional models in the existing technology, and the circuit connection adopts the conventional connection method in the existing technology, which will not be elaborated here.

[0023] As Figure 4 shown, a flushing pipe 12 is arranged inside the collection bucket 3, and the bottom end of the flushing pipe 12 penetrates and extends below the collection bucket 3. A plurality of spray holes 13 are arranged on the surface of the flushing pipe 12. A one-way valve 14 is installed at the bottom end of the flushing pipe 12. With the above structure, the treatment liquid can be transported into the flushing pipe 12 and finally sprayed out through each spray hole 13, so as to flush the inner wall of the collection bucket 3 without removing the collection bucket 3. And with the setting of the one-way valve 14, it effectively prevents the waste liquid in the collection bucket 3 from flowing back into the flushing pipe 12, so that the waste liquid cannot enter the bottom of the flushing pipe 12.

[0024] As Figure 4 , Figure 5 and Figure 6As shown, the bottom end of the flushing pipe 12 is rotatably connected to the bottom of the collecting barrel 3 through a sealed bearing, so that the flushing pipe 12 is sealed when rotating in the collecting barrel 3 to prevent leakage of waste liquid in the collecting barrel 3. The surface of the bottom end of the flushing pipe 12 is fixedly connected to a first gear 15, and the bottom end of the flushing pipe 12 is rotatably connected to a rotary joint 16, so that the bottom end of the flushing pipe 12 can rotate at the top of the rotary joint 16. The rotary joint 16 is an existing mature technology and will not be described in detail here. The bottom end of the rotary joint 16 is connected to a treatment liquid conduit 17, which can infuse the treatment liquid into the treatment liquid conduit 17, so that the treatment liquid can be used to flush the inner wall of the collecting barrel 3 through the flushing pipe 12. The inner wall of the stand 1 is equipped with a motor 11 A second gear 19 is fixedly connected to the output end of the motor 11, and the second gear 19 is meshed with the first gear 15. Through the setting of the above structure, when the waste liquid in the collection barrel 3 is discharged, the first gear 15 and the second gear 19 are in a meshing state. Under the operation of the motor 11, the second gear 19 drives the first gear 15 to rotate, and further drives the flushing pipe 12 to rotate on the inner wall of the collection barrel 3, and then the treated liquid is transported through the treated liquid conduit 17, so that the flushing pipe 12 can flush the inner wall of the collection barrel 3 with the treated liquid. Under the setting of the rotary joint 16, the treated liquid conduit 17 will not rotate with the flushing pipe 12, thereby ensuring the normal flow of the treated liquid.

[0025] like Figure 3 , Figure 4 and Figure 6 As shown, a positioning frame 18 is fixedly connected to the surface of the rotary joint 16, and the top of the positioning frame 18 is fixedly connected to the bottom of the collecting bucket 3. Through the setting of the positioning frame 18, the stability of the rotary joint 16 can be guaranteed, thereby preventing the rotary joint 16 from rotating with the flushing pipe 12, and further ensuring the normal use of the treatment liquid conduit 17.

[0026] like Figure 1 and Figure 2 As shown, two guide grooves are provided on the inner bottom wall of the stand 1 , and the guide grooves are arranged so as to facilitate pushing the collection vehicle to the bottom of the collection bucket 3 .

[0027] Working principle and usage process of the present utility model: When the collection bucket 3 is normally collecting waste liquid, the collection bucket 3 is in a vertical state at this time, and then the waste liquid from multiple liquid chromatographs is uniformly diverted and transported into the waste liquid conduit 4. When the waste liquid in the collection bucket 3 needs to be discharged, the synchronous operation of two electric push rods 8 is utilized to push two guide rods 10 to move, so that the collection bucket 3 slides in two chutes 9 through two guide wheels 7. At this time, the collection bucket 3 is in an inclined state, and then the drain pipe at the bottom of the collection bucket 3 is opened to discharge the waste liquid. Without disassembling the collection bucket 3, the waste liquid in the collection bucket 3 can be conveniently discharged. At the same time, the first gear 15 also meshes with the second gear 19. When flushing the inside of the collection bucket 3, the treatment liquid is transported into the flushing pipe 12 through the treatment liquid conduit 17, and the rotation of the second gear 19 drives the first gear 15 to rotate under the operation of the motor 11, further realizing the rotation of the flushing pipe 12 inside the collection bucket 3, so as to achieve comprehensive flushing. The flushed wastewater can be directly discharged from the drain pipe at the bottom of the collection bucket 3.

[0028] In the present utility model, unless otherwise clearly defined and limited, terms such as "connection" and "fixation" shall be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two components or the interaction relationship between two components, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. The content not described in detail in the specification belongs to the prior art well-known to those skilled in the art.

[0029] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A waste liquid collection device for a liquid chromatograph, comprising an upright frame (1), a collection bucket (3) and a waste liquid conduit (4), characterized in that: A support frame (2) is fixedly connected to the top end of the vertical frame (1). A swing pipe (6) is communicated with the top end of the collection bucket (3). The top end of the swing pipe (6) is rotationally communicated with a universal joint (5), and the universal joint (5) is embedded in the top end of the support frame (2). The bottom end of the waste liquid conduit (4) is communicated with the top end of the universal joint (5). Chute grooves (9) are formed in the front and back surfaces of the vertical frame (1), and electric push rods (8) are hinged thereto. Two opposite guide rods (10) are fixedly connected to the surface of the collection bucket (3). A guide wheel (7) is rotatably connected to each guide rod (10), and the guide wheel (7) is slidably arranged in the corresponding chute groove (9). The telescopic ends of the two electric push rods (8) are respectively sleeved on the two guide rods (10).

2. The waste liquid collection device of a liquid chromatograph according to claim 1, characterized in that: A flushing pipe (12) is arranged inside the collection bucket (3), and the bottom end of the flushing pipe (12) penetrates and extends below the collection bucket (3). A plurality of spray holes (13) are formed in the surface of the flushing pipe (12). A check valve (14) is installed at the bottom end of the flushing pipe (12).

3. The waste liquid collection device of a liquid chromatograph according to claim 2, characterized in that: The bottom end of the flushing pipe (12) is rotationally connected to the bottom of the collection bucket (3) through a sealed bearing. A first gear (15) is fixedly connected to the surface of the bottom end of the flushing pipe (12). The bottom end of the flushing pipe (12) is rotationally communicated with a rotary joint (16). The bottom end of the rotary joint (16) is communicated with a treatment liquid conduit (17). A motor (11) is installed on the inner wall of the vertical frame (1). A second gear (19) is fixedly connected to the output end of the motor (11), and the second gear (19) meshes with the first gear (15).

4. The waste liquid collection device of a liquid chromatograph according to claim 3, wherein: A positioning frame (18) is fixedly connected to the surface of the rotary joint (16), and the top end of the positioning frame (18) is fixedly connected to the bottom of the collection bucket (3).

5. The waste liquid collection device of a liquid chromatograph according to claim 1, characterized in that: Two guide grooves are formed in the inner bottom wall of the vertical frame (1).

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