CN210665159U

CN210665159U - Parallel sample sampler for detecting liquid food

Info

Publication number: CN210665159U
Application number: CN201921253149.5U
Authority: CN
Inventors: 李连杰; 韩庆辉
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-08-05
Filing date: 2019-08-05
Publication date: 2020-06-02
Anticipated expiration: 2029-08-05

Abstract

The utility model discloses a parallel appearance sampler for detecting liquid food belongs to food detection technology field. The sampler comprises a sample separating disc, a sample tube, a piston and a sampling head. The sample separating disc comprises a disc surface and a piston cylinder. The disk surface is provided with a plurality of sample separating holes. The sample distributing hole is used for fixing the sample tube through the fixing sleeve. The fixed sleeve is communicated with the piston cylinder through a communicating pipe, and a piston is arranged in the piston cylinder; the sampling head is movably arranged at the front part of the sample separating disc, and the sampling head is provided with an inserting cylinder which corresponds to the sample separating hole and can be inserted into the fixing sleeve. The sampling head is internally provided with a liquid separation cavity and a through hole communicated with the sample separation hole, and a liquid sample enters different sample tubes through the through hole and the sample separation hole after entering the liquid separation cavity. This sampler is equipped with the branch appearance dish that has a plurality of branch appearance holes, and every divides the equal accessible fixed sleeve in appearance hole and a sampling tube sealing connection to can make the sample that obtains disperse to a plurality of sampling tubes in, realize once taking a sample and obtain the function of a plurality of parallel appearance.

Description

Parallel sample sampler for detecting liquid food

Technical Field

The utility model relates to a parallel appearance sampler for detecting liquid food belongs to food detection technology field.

Background

With the increasing abundance of people's material life, various novel foods are continuously appearing. Among them, liquid food is one of the most common forms of food. Such as various liquid milks, beverages, cans, and even wines. In the process of detecting the pantyhose products, sampling is an indispensable link. In the detection process, in order to ensure the accuracy of the detection data, one sample is often required to be sampled for multiple times to obtain enough parallel samples, so that the accuracy of the detection data is fully ensured. But since the food product is an extremely complex and varied mixture system, especially a liquid food product. When sampling detection is carried out at different times, the composition and the substance content of the sample are changed, so that the accuracy of a detection result is influenced.

At present, the detection sampling of liquid food samples generally adopts a mode of sampling respectively in times, and a sampling device can only obtain one sample at a time. Multiple parallel samples cannot be acquired simultaneously.

SUMMERY OF THE UTILITY MODEL

For solving the problem that current liquid food detects sampling device once only can acquire a sample when the sample, the utility model provides a sample can obtain the sampler of a plurality of parallel samples, the technical scheme who takes as follows:

a parallel sample sampler for detecting liquid food comprises a sample separating disc 1, a plurality of sample tubes 2, a piston 3 and a sampling head 5; the sample separating plate 1 comprises a disc-shaped plate surface 11 and a piston cylinder 13 fixedly connected to the center of one side surface of the disc; a plurality of sample distributing holes 12 are formed in the disk surface 11; the sample dividing hole 12 is used for fixing the sample tube 2 through a fixing sleeve 14 which is common with a piston cylinder 13; the fixed sleeve 14 is communicated with the piston cylinder 13 above the sample tube 2 through a communicating pipe 15, and a piston 3 is arranged in the piston cylinder 13; the sampling head 5 is movably arranged at the front part of the sample distributing disc 1, and the sampling head 5 is provided with an inserting cylinder 52 which corresponds to the sample distributing hole 12 and can be inserted into the fixed sleeve 14; a liquid separating cavity 58 and a through hole 57 communicated with the sample separating hole 12 are arranged in the sampling head 5, and after a liquid sample enters the liquid separating cavity 58, the liquid sample enters different sample tubes 2 through the through hole 57 and the sample separating hole 12.

Preferably, the sampling head 5 comprises a tip 53, the front of which is needle-like and provided with a sampling hole 54; a conical liquid separating cavity 58 is arranged in the pointed head 53, and a through hole 57 corresponding to the sample separating hole 12 is arranged on the bottom surface of the liquid separating cavity 58 along the circumferential direction.

Preferably, the sampling head 5 comprises a sampling pipe joint 56 of which the front part is hollow cylindrical; and the end part of the outer side surface of the sampling pipe joint 56 is provided with an external thread.

More preferably, a conical separatory cone 55 is arranged in the inner cavity of the sampling pipe joint 56; a plurality of through holes 57 corresponding to the sample distributing holes 12 are arranged in the circumferential direction of the bottom surface of the separating cone 55 extending outwards.

Preferably, the sampler further comprises an outer sleeve 4; the outer sleeve 4 is hollow and cylindrical; through grooves 41 are symmetrically arranged on the side surfaces of the middle lower part, and a plurality of positioning grooves 42 are arranged on two sides of each through groove 41 in parallel and perpendicular to the length direction of the through groove.

Preferably, the piston 3 comprises a cylindrical sealing plug 31, a plug rod 32 fixedly connected with the sealing plug 31, and a supporting plate 33 connected to the other end of the plug rod 32; the support disc 33 is parallel to the sealing plug 31; two positioning wedges 34 are symmetrically arranged on the circumferential side surface of the supporting disc 33 by taking the axis as the center; the positioning wedge 34 can be matched, inserted and fixed with the positioning groove 42.

Preferably, the sampling head 5 is provided with a fixing ring 51 in the same direction as the insertion cylinder 52; the sampling head 5 is sleeved and fixed on the outer side of the sample distributing plate 1 through a fixing ring 51.

More preferably, one end of the outer sleeve 4 without the through groove 41 is sleeved on the outer circumferential surface of the disk surface 11 of the sample-dispensing disk 1, and the fixing ring 51 of the sampling head 5 is sleeved and fixed on the outer circumferential surface of the outer sleeve 4.

Compared with the prior art, the utility model discloses the beneficial effect who obtains:

the utility model discloses a sampler is equipped with and divides the appearance dish, divides to be equipped with a plurality of branch appearance holes in the appearance dish, every divides the equal accessible fixed sleeve in appearance hole and a sampling tube sealing connection to can make the sample that obtains disperse to a plurality of sampling tubes in, realize once taking a sample and obtain the function of a plurality of parallel appearance.

Be equipped with acicular or cylindric sampling head at sampling device's front end, both can obtain through the mode of following the bottom puncture suction, also can suck from sample solution through connecting tube, and sampling operation is very convenient.

Drawings

Fig. 1 is a schematic front view of a sample distributing plate according to a preferred embodiment of the present invention.

Fig. 2 is a schematic perspective view of fig. 1.

Fig. 3 is a schematic perspective view of a sample tube according to a preferred embodiment of the present invention.

Fig. 4 is a schematic perspective view of a piston according to a preferred embodiment of the present invention.

Fig. 5 is a schematic perspective view of an outer sleeve according to a preferred embodiment of the present invention.

Fig. 6 is a schematic perspective view of a sampling head according to a preferred embodiment of the present invention.

Fig. 7 is a schematic perspective view of a sampling head according to another preferred embodiment of the present invention.

Fig. 8 is a schematic perspective view of fig. 7 at another angle.

Fig. 9 is a schematic perspective view of a sampler according to a preferred embodiment of the present invention.

Fig. 10 is a schematic diagram of the exploded structure of the sampler shown in fig. 9.

Fig. 11 is a schematic perspective view of a sampler according to another preferred embodiment of the present invention.

Wherein, 1, a sample separating disc; 2, sample tube; 3, a piston; 4, an outer sleeve; 5, a sampling head; 11, a disk surface; 12, sample dividing holes; 13, a piston cylinder; 14, fixing the sleeve; 15, communicating pipes; 31, a sealing plug; 32, a stopper rod; 33, a support disk; 34, a positioning wedge; 41, a through groove; 42, positioning grooves; 51, a fixing ring; 52, inserting a cylinder; 53, cusp; 54, a sample inlet; 55, separating cone; 56, a sampling pipe joint; 57, a through hole; 58, a liquid separation cavity.

Detailed Description

In the following description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "top", "bottom", "inner", "outer" and "upright" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the following description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; the connection may be direct or indirect via an intermediate medium, or the connection may be internal to both components. To those of ordinary skill in the art, the specific meaning of the written terms in the present invention can be understood as a specific case.

In addition, in the following description of the present invention, the meaning of "a plurality", and "a plurality" is two or more unless otherwise specified.

The materials, reagents, devices, apparatuses, methods and processes used in the following examples are not specifically described, and are all materials, reagents, devices, apparatuses, methods and processes which are common in the art, and are commercially available to those skilled in the art or can be routinely set up according to specific needs without any creative effort.

The present invention will be described in further detail with reference to the accompanying drawings, but the present invention is not limited by the following detailed description.

Fig. 1 is a schematic front view of a sample distributing plate according to a preferred embodiment of the present invention. Fig. 2 is a schematic perspective view of fig. 1. As can be seen from fig. 1 and 2, the sample disk includes a disk surface 11 having a large diameter and a disk shape, a small diameter hollow cylindrical piston cylinder 13 connected to one side of the disk surface 11, and 8 fixing sleeves 14 uniformly distributed in the circumferential direction outside the piston cylinder 13 and fixed to the disk surface 11. The disk surface 11 is provided with sample dividing holes corresponding to the positions of the fixing sleeves 14. Meanwhile, each fixed sleeve 14 is hermetically connected with the piston cylinder 13 through a communication pipe 15, thereby achieving communication of the space between the piston cylinder 13 and the connecting sleeve 14. The positions of the sample distributing holes 12 and the fixing sleeves 14 correspond to each other and are the same in number, and the specific number can be selected and determined according to needs.

Fig. 3 is a schematic perspective view of a sample tube according to a preferred embodiment of the present invention. As can be seen from FIG. 3, the sample is a conventional test tube having the same shape, and the front portion is fixedly sleeved with the fixing sleeve 14 shown in FIG. 2.

Fig. 4 is a schematic perspective view of a piston according to a preferred embodiment of the present invention. As can be seen from fig. 4, the piston is provided with a disc-shaped sealing plug 31, a stem 32 connected to the sealing plug 31 and a support disc 33 connected to the other end of the stem 32. Wherein, the sealing plug 31 is inserted into the piston cylinder 13 and sealed to change the pressure of the front side of the sealing plug 31. Meanwhile, two positioning wedges 34 are symmetrically provided on the circumferential side of the support plate 33 having a diameter larger than that of the sealing plug 31 and parallel thereto.

Fig. 5 is a schematic perspective view of an outer sleeve according to a preferred embodiment of the present invention. As can be seen from fig. 5, the outer sleeve 5 is hollow and cylindrical, and two through slots 41 are symmetrically arranged on one side of the outer sleeve with respect to the circumferential axis so as to facilitate the sliding of the positioning wedges 34 along the through slots 41. Meanwhile, a plurality of positioning grooves 42 are arranged in parallel along the length direction of the through groove 41, so that the positioning wedge 34 can slide into the positioning grooves 42 for fixation when sliding to a certain position.

Fig. 6 is a schematic perspective view of a sampling head according to a preferred embodiment of the present invention. As can be seen from FIG. 6, the sampling head is a conventional needle-type sampling head, the front part is a pointed tip 53, and the middle part is connected with the circular tail part through a cylindrical connector. Two sample inlet holes 54 are provided in the tip 53. A fixing ring 51 extending in the opposite direction to the tip 53 is provided on the outer circumferential surface of the circular tail portion to fix the sampling head 5. Meanwhile, the rear portion of the sampling head in the fixing ring 51 is provided with a cartridge 52 corresponding to the position of the fixing sleeve 14 and capable of being sealed by insertion. The front tip 53 and the middle cylindrical connector are provided with a cavity, so that a sample can enter the fixing sleeve 14 from the inserting tube 52 after entering through the sample inlet 54, and then enter the sample tube 2.

Fig. 7 is a schematic perspective view of a sampling head according to another preferred embodiment of the present invention. Fig. 8 is a schematic perspective view of fig. 7 at another angle. As can be seen from fig. 7 and 8, the sampling head of this embodiment has an open hollow cylindrical sampling pipe joint 56 at the front end, and a conical separatory cone 55 is provided inside the sampling pipe joint 56. Through holes 57 arranged corresponding to the sample separation holes 12 are distributed on the circumferential array of the circumferential extension surface of the bottom surface of the separating cone 55. Meanwhile, the outer circumferential surface of the front end of the sampling tube joint 56 is provided with threads, which are generally connected with the joint, so that the liquid sample can be extracted in a longer distance. This form is particularly suitable for situations where sample containers are submitted in large sizes and are not convenient for direct extraction. The test sample can be withdrawn alongside the container by inserting a guide tube.

Fig. 9 is a schematic perspective view of a sampler according to a preferred embodiment of the present invention. Fig. 10 is a schematic diagram of the exploded structure of the sampler shown in fig. 9. As can be seen from fig. 9 and 10, the sampler of this embodiment consists of one sample plate 1 as shown in fig. 1, 8 sample tubes as shown in fig. 3, 1 piston as shown in fig. 4, 1 outer sleeve as shown in fig. 5, and 1 sampling head as shown in fig. 6. Wherein, 8 sampling tubes 2 are inserted and sealed in the fixed sleeve 14, and the position is located below the communicating tube 15. The piston 3 is movably inserted in the piston cylinder 13. Meanwhile, the outer sleeve 4 is sleeved on the outer sides of the sampling tube 2 and the sample separating disc 1, and the inner wall of the front part is sleeved and fixed with the outer circumference of the disc surface 11. Meanwhile, the inner circumferential surface of the fixing ring 51 of the sampling head 5 is fixedly sleeved with the outer circumferential surface of the front part of the outer sleeve 4.

In use, the sharp point can be used to pierce or penetrate into the sample container, and the piston is pulled to reduce the pressure in the space communicating with the sample tube 2. Further, the sample passes through the sample inlet 54, the liquid separation chamber 58 inside the tip, the through hole 57, the insert cylinder 52, and the fixing sleeve 14 in this order under the action of atmospheric pressure and the like, and enters the sample tube 2. Since the diameter of the piston cylinder 13 is significantly larger than the diameter of the sample tube, air in a plurality of sample tubes can be sucked into the piston cylinder 13. After entering the liquid separation cavity 58 through the sample inlet 54, the sample flows into different sample tubes 2 through the through hole 57, the liquid separation hole 12 and the like, so that a plurality of parallel samples can be obtained by one-time sampling. Because the parallel samples come from the same sample at the same time, the system error caused by time difference can be greatly reduced.

Fig. 11 is a schematic perspective view of a sampler according to another preferred embodiment of the present invention. As can be seen from fig. 11, the embodiment differs from the embodiment shown in fig. 9 and 10 mainly in that: the arrangement of the sampling head 5 is different. Fig. 11 uses a cylindrical-like sampling tube connector 56, which is externally threaded on its outer side to facilitate connection to various connecting tubes or sampling pipes. On one hand, the application range and the applicability are expanded, and on the other hand, the method is also beneficial to being used in some situations which are inconvenient for direct sampling or remote sampling.

Although the present invention has been described with reference to the preferred embodiments, it should be understood that various changes and modifications can be made by those skilled in the art without departing from the spirit and scope of the invention.

Claims

1. A parallel sample sampler for detecting liquid food is characterized by comprising a sample separating disc (1), a plurality of sample tubes (2), a piston (3) and a sampling head (5); the sample separating plate (1) comprises a disc-shaped plate surface (11) and a piston cylinder (13) fixedly connected to the center of one side surface of the disc; a plurality of sample distributing holes (12) are arranged on the disc surface (11); the sample dividing hole (12) is used for fixing the sample tube (2) through a fixing sleeve (14) on the same side of the piston cylinder (13); the fixed sleeve (14) is communicated with the piston cylinder (13) above the sample tube (2) through a communicating pipe (15), and a piston (3) is arranged in the piston cylinder (13); the sampling head (5) is movably arranged at the front part of the sample distributing disc (1), and the sampling head (5) is provided with an inserting cylinder (52) which corresponds to the sample distributing hole (12) in position and can be inserted into the fixed sleeve (14); a liquid separating cavity (58) and a through hole (57) communicated with the sample separating hole (12) are arranged in the sampling head (5), and after a liquid sample enters the liquid separating cavity (58), the liquid sample enters different sample tubes (2) through the through hole (57) and the sample separating hole (12).

2. A parallel-sample sampler for the detection of liquid food products according to claim 1, characterized in that the sampling head (5) comprises a tip (53) frontally needle-like and provided with a sampling hole (54); a conical liquid separating cavity (58) is arranged in the pointed head (53), and a through hole (57) corresponding to the sample separating hole (12) is formed in the bottom surface of the liquid separating cavity (58) along the circumferential direction.

3. A parallel-like sampler for the detection of liquid food products according to claim 1, characterized in that said sampling head (5) comprises a sampling pipe joint (56) of hollow cylindrical shape at the front; and the end part of the outer side surface of the sampling pipe joint (56) is provided with an external thread.

4. A parallel-sample sampler for the detection of liquid food products according to claim 3, characterized in that a conical separating cone (55) is provided in the inner cavity of the sampling pipe connection (56); a plurality of through holes (57) corresponding to the sample dividing holes (12) are arranged in the circumferential direction of the bottom surface of the liquid separating cone (55) extending outwards.

5. A parallel-like sampler for testing liquid food products according to claim 1, characterized in that it further comprises an outer sleeve (4); the outer sleeve (4) is hollow and cylindrical; through grooves (41) are symmetrically arranged on the side surfaces of the middle lower part, and a plurality of positioning grooves (42) are arranged on two sides of each through groove (41) in parallel and perpendicular to the length direction of the through groove.

6. A parallel-sample sampler for the detection of liquid food products according to claim 5, characterized in that the piston (3) comprises a cylindrical sealing plug (31), a plug stem (32) fixedly connected to the sealing plug (31), a support disc (33) connected to the other end of the plug stem (32); the support disc (33) is parallel to the sealing plug (31); two positioning wedges (34) are symmetrically arranged on the circumferential side surface of the supporting disc (33) by taking the axis as the center; the positioning wedge (34) can be matched, inserted and fixed with the positioning groove (42).

7. A parallel-like sampler for the examination of liquid food products according to claim 1, characterized in that the sampling head (5) is provided with a fixing ring (51) co-directional with the cartridge (52); the sampling head (5) is sleeved and fixed on the outer side of the sample distributing disc (1) through a fixing ring (51).

8. The parallel-sample sampler for detecting the liquid food as claimed in claim 7, wherein one end of the outer sleeve (4) without the through groove (41) is sleeved on the outer circumferential surface of the disc surface (11) of the sample separating disc (1), and the fixing ring (51) of the sampling head (5) is sleeved and fixed on the outer circumferential surface of the outer sleeve (4).