Premixed polyether detection sampling conduit

Abstract

The utility model discloses a combined polyether detection sampling conduit which comprises a fixed guide seat, a negative pressure generator is arranged at the center of the upper end face of the fixed guide seat, and a connecting handle is fixedly arranged at the center of the upper end face of the negative pressure generator. By arranging the sampling device and the limiting device, when the combined polyether is subjected to single multi-group sampling, the six groups of sampling conduits and sampling heads can perform negative pressure sampling under the adsorption of the negative pressure generator, so that the sampling heads can synchronously sample the combined polyether through the sampling conduits, the subsequent sampling efficiency is effectively improved, and the sampling efficiency is improved. Meanwhile, the one-way valve can perform one-way sealing on the sampling guide pipe and the bottom of the sampling head, so that liquid leakage after subsequent sampling is completed is prevented, and the sampling accuracy is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of combined polyether equipment, in particular to a combined polyether detection sampling catheter. Background Art

[0002] Composite polyether is a kind of polymer, which is usually composed of different monomer units. After the production of composite polyether is completed, the produced composite polyether needs to be tested. The sampling catheter is one of the essential equipment for sampling, which can effectively improve the detection efficiency of composite polyether.

[0003] For example, the utility model patent disclosed in the publication number is CN214621885U, a combined polyether sampling device includes a first sleeve, a limit sleeve is provided at the lower end of the first sleeve, the inner wall of the limit sleeve is slidably connected to the second sleeve, the second sleeve is provided with a scale line, the lower end of the second sleeve is provided with a connector, the outer surface of the connector is threadedly connected to the connector sleeve, the lower end of the connector sleeve is provided with a suction nozzle, the suction nozzle is provided with a through hole, the lower end of the suction nozzle is fixedly connected to a protective net, the upper end of the second sleeve is fixedly connected to the first piston head, the inner wall of the second sleeve is slidably connected to the second piston head, the upper end of the second piston head is fixedly connected to an electric telescopic rod, the first sleeve is fixedly connected to a ferrule, and the ferrule is fixedly connected to a handle. In the utility model, the upper end of the second sleeve is provided with a scale line, and the position of the second sleeve moving downward can be observed by setting the scale line, thereby improving the use effect.

[0004] Although the above equipment can sample the composite polyether, the above sampling catheter can only perform single sampling, thereby reducing the efficiency of sampling and detecting the composite polyether. Therefore, a composite polyether detection sampling catheter is urgently needed to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide a combined polyether detection sampling catheter to solve the problems raised in the above background technology.

[0006] To achieve the above object, the utility model provides the following technical solution: a combined polyether detection sampling catheter, comprising a fixed guide seat, a negative pressure generator is arranged at the center of the upper end surface of the fixed guide seat, and a connecting handle is fixedly installed at the center of the upper end surface of the negative pressure generator,

[0007] A docking conduit, wherein the docking conduit is provided with six groups in total, and the six groups of the docking conduits are equidistantly arranged on the lower end surface of the fixed guide seat;

[0008] A limit rotation groove, wherein the limit rotation groove is arranged at the center of the lower end surface of the fixed guide seat, and the inner end surface of the fixed guide seat is rotatably engaged with the limit device through the limit rotation groove;

[0009] The sampling device is provided with six groups in total, and the six groups of the sampling devices are all clamped on the inner end surface of the limiting device.

[0010] Preferably, the sampling device includes a docking ferrule, a sampling catheter is arranged at the center of the lower bottom surface of the docking ferrule, and a display scale is symmetrically provided on the side end surface of the sampling catheter, a sampling head is fixedly arranged at the center of the lower end surface of the sampling catheter, and a one-way valve is arranged on the upper end surface of the sampling catheter near the docking ferrule.

[0011] Preferably, the limiting device includes a fixed rotating shaft, a spring guide shaft is provided on the lower end face of the fixed rotating shaft, and a limiting turntable is fixedly installed at the center of the lower end face of the spring guide shaft, and six groups of fixed slots are equidistantly provided on the inner end face of the limiting turntable.

[0012] Preferably, the sampling conduit is dampedly connected to the inside of the limiting turntable through the fixed slot, and the sampling conduit can be slidably interfered with the inside of the fixed slot, which can improve the stability of the limit inside the fixed slot.

[0013] Preferably, the spring guide shaft is adapted to the limit rotation groove through the fixed rotating shaft and then rotatably clamped on the lower end surface of the fixed guide seat. The limit rotation groove can provide sufficient limiting basis for the fixed rotating shaft, thereby improving the stability of the subsequent limit device rotating at the bottom of the fixed guide seat.

[0014] Preferably, the docking catheter is sealed and clamped with the interior of the docking sleeve, which can effectively improve the stability of subsequent negative pressure sampling.

[0015] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0016] 1. The utility model provides a sampling device and a limit device. When performing a single multi-group sampling of the combined polyether, the six groups of sampling catheters and the sampling head can perform negative pressure sampling under the adsorption of the negative pressure generator, so that the sampling head can synchronously sample the combined polyether through the sampling catheter, which effectively improves the efficiency of subsequent sampling. At the same time, the one-way valve can unidirectionally seal the bottom of the sampling catheter and the sampling head to prevent leakage after the subsequent sampling is completed, thereby improving the accuracy of sampling. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a disassembled diagram of the main body of the utility model;

[0018] Figure 2 It is a structural schematic diagram of the main body of the utility model;

[0019] Figure 3It is a structural schematic diagram of the sampling device of the utility model;

[0020] Figure 4 It is a structural schematic diagram of the limiting device of the utility model.

[0021] In the figure: 1-connecting handle, 2-negative pressure generator, 3-fixed guide seat, 4-docking catheter, 5-sampling device, 6-limiting device, 7-limiting rotating groove, 51-docking sleeve, 52-check valve, 53-sampling catheter, 54-sampling head, 55-display scale, 61-fixed rotating shaft, 62-spring guide shaft, 63-limiting rotating disk, 64-fixed card slot. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-4 The utility model provides an embodiment: a combined polyether detection sampling catheter, comprising a fixed guide seat 3, a negative pressure generator 2 is arranged at the center of the upper end surface of the fixed guide seat 3, and a connecting handle 1 is fixedly installed at the center of the upper end surface of the negative pressure generator 2,

[0024] The docking conduits 4 are provided with six groups in total, and the six groups of docking conduits 4 are equidistantly arranged on the lower end surface of the fixed guide seat 3;

[0025] The limiting rotation groove 7 is provided at the center of the lower end surface of the fixed guide seat 3, and the inner end surface of the fixed guide seat 3 is rotatably engaged with the limiting device 6 through the limiting rotation groove 7;

[0026] The sampling device 5 is provided with six groups in total, and the six groups of sampling devices 5 are all clamped on the inner end surface of the limiting device 6 .

[0027] The sampling device 5 includes a docking ferrule 51, a sampling tube 53 is arranged at the center of the lower bottom surface of the docking ferrule 51, and a display scale 55 is symmetrically provided on the side end surface of the sampling tube 53, a sampling head 54 is fixedly arranged at the center of the lower end surface of the sampling tube 53, and a one-way valve 52 is arranged on the upper end surface of the sampling tube 53 near the docking ferrule 51.

[0028] The limiting device 6 comprises a fixed rotating shaft 61, a spring guide shaft 62 is arranged on the lower end face of the fixed rotating shaft 61, and a limiting rotating disk 63 is fixedly installed at the center of the lower end face of the spring guide shaft 62, and six groups of fixed slots 64 are equidistantly arranged on the inner end face of the limiting rotating disk 63.

[0029] The sampling conduit 53 is dampedly connected to the inside of the limiting turntable 63 through the fixed slot 64 . The sampling conduit 53 can be slidably interfered with the inside of the fixed slot 64 , which can improve the stability of being limited in the fixed slot 64 .

[0030] The spring guide shaft 62 is adapted to the limiting groove 7 through the fixed rotating shaft 61 and then rotated and clamped on the lower end surface of the fixed guide seat 3. The limiting groove 7 can provide sufficient limiting basis for the fixed rotating shaft 61, thereby improving the stability of the subsequent limiting device 6 rotating at the bottom of the fixed guide seat 3.

[0031] The sealing connection between the docking conduit 4 and the interior of the docking sleeve 51 can effectively improve the stability of subsequent negative pressure sampling.

[0032] Working principle: During use, if it is necessary to perform a detection operation on the combined polyether, the user can hold the connecting handle 1, and then position the sampling catheter 53 and the sampling head 54 to the required sampling location. At this time, the negative pressure generator 2 works, and the negative pressure generator 2 can drive the docking catheter 4 at the bottom to generate negative pressure, so that the docking catheter 4 can drive the inside of the sampling catheter 53 to generate negative pressure through the one-way valve 52, so that the sampling catheter 53 can sample and adsorb the combined polyether through the sampling head 54. At this time, the display scale 55 can display the sampled volume in real time, and the one-way valve 52 can seal the inside of the sampling catheter 53 after sampling to prevent leakage, thereby improving the stability of sampling. After the sampling is completed, the user can pull the limit turntable 63 downward to extend the spring guide shaft 62, so that the limit turntable 63 drives the one-way valve 52 to separate from the docking catheter 4, so that it is convenient for subsequent users to replace the sampling devices 5 that have completed sampling one by one.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A combined polyether detection sampling catheter, comprising a fixed guide seat (3), a negative pressure generator (2) is arranged at the center of the upper end surface of the fixed guide seat (3), and a connecting handle (1) is fixedly installed at the center of the upper end surface of the negative pressure generator (2), characterized in that: A docking conduit (4), wherein the docking conduit (4) is provided in six groups in total, and the six groups of the docking conduits (4) are arranged at equal distances on the lower end surface of the fixed guide seat (3); A limit rotation groove (7), wherein the limit rotation groove (7) is arranged at the center of the lower end surface of the fixed guide seat (3), and the inner end surface of the fixed guide seat (3) is rotatably engaged with the limit device (6) through the limit rotation groove (7); The sampling device (5) is provided with six groups in total, and the six groups of the sampling devices (5) are all clamped on the inner end surface of the limiting device (6).

2. A combined polyether detection sampling catheter according to claim 1, characterized in that: The sampling device (5) comprises a docking ferrule (51), a sampling conduit (53) is arranged at the center of the lower bottom surface of the docking ferrule (51), and a display scale (55) is symmetrically provided on the side end surface of the sampling conduit (53), a sampling head (54) is fixedly arranged at the center of the lower end surface of the sampling conduit (53), and a one-way valve (52) is arranged on the upper end surface of the sampling conduit (53) near the docking ferrule (51).

3. A combined polyether detection sampling catheter according to claim 2, characterized in that: The limiting device (6) comprises a fixed rotating shaft (61), the lower end surface of the fixed rotating shaft (61) is provided with a spring guide shaft (62), a limiting rotating disc (63) is fixedly installed at the center of the lower end surface of the spring guide shaft (62), and six groups of fixed slots (64) are equidistantly provided on the inner end surface of the limiting rotating disc (63).

4. A combined polyether detection sampling catheter according to claim 3, characterized in that: The sampling conduit (53) is dampedly clamped inside the limiting rotating disk (63) through the fixing clamping groove (64).

5. The combined polyether detection sampling catheter according to claim 3, characterized in that: The spring guide shaft (62) is adapted to the limit rotation groove (7) through the fixed rotation shaft (61) and is then rotatably clamped on the lower end surface of the fixed guide seat (3).

6. The combined polyether detection sampling catheter according to claim 3, characterized in that: The docking conduit (4) is sealed and clamped with the interior of the docking sleeve (51).

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