CN213098006U - Sampler with fixed length is flexible - Google Patents

Abstract

The utility model discloses a sampler with fixed length is flexible, including drum, sampling test paper head, piston and push-and-pull rod, the drum front end is the test paper chamber of toper structure, and elastic sealing connection has the piston in the drum, and push-and-pull rod fixed connection is in piston rear end center, and the sampling test paper head is connected through connecting rod fixed connection to the piston front end, and the drum lower extreme is stretched out to the push-and-pull rod rear end, and the push-and-pull rod tail end is connected to the push-and-pull handle after wearing out the drum, and the push-and-pull handle activity is inserted in the guide cylinder, and guide cylinder; the side face of the tail end of the push-pull handle is fixedly connected with a limiting rod, the front end of the limiting rod is provided with limiting clamping teeth, the surface of the cylinder is provided with a plurality of limiting clamping grooves, and the push-pull limiting rod can enable the limiting clamping teeth to be embedded into the limiting clamping grooves. The utility model discloses set up spacing latch and a plurality of spacing draw-in groove, can realize the flexible sampling of fixed length fast, can improve sampling accuracy nature and application scope to the quick spacing of sampling test paper head extension length.

Description

Sampler with fixed length is flexible

Technical Field

The utility model relates to a sample thief with fixed length is flexible belongs to virus sampling equipment technical field.

Background

Traditional sampling of upper respiratory tract, anus, oral cavity and the like directly uses cotton swabs and the like for sampling, and has depth difference aiming at different crowds and individuals; meanwhile, the upper respiratory tract pathogen samples have different distribution areas according to the depth.

Disclosure of Invention

The to-be-solved technical problem of the utility model is: a sampler with fixed length expansion is provided to solve the above problems in the prior art.

The utility model discloses the technical scheme who takes does: a sampler with fixed-length extension comprises a cylinder, a sampling test paper head, a piston and a push-pull rod, wherein the front end of the cylinder is a test paper cavity with a conical structure, the piston is elastically and hermetically connected in the cylinder, the push-pull rod is fixedly connected to the center of the rear end part of the piston, the front end part of the piston is fixedly connected with the sampling test paper head through a connecting rod, the rear end of the push-pull rod extends out of the lower end of the cylinder, the tail end of the push-pull rod penetrates out of the cylinder and is connected to a push-pull handle, the push-pull handle is movably inserted into; the side face of the tail end of the push-pull handle is fixedly connected with a limiting rod, the front end of the limiting rod is provided with limiting clamping teeth, the surface of the cylinder is provided with a plurality of limiting clamping grooves, and the push-pull limiting rod can enable the limiting clamping teeth to be embedded into the limiting clamping grooves.

Preferably, the plurality of limiting clamping grooves are located on the guide grooves, and the guide grooves are formed in the surface of the cylinder in the length direction.

Preferably, a sampling reagent pack is arranged in the through hole on the side surface of the front end part of the cylinder, and a piercing mechanism is arranged at the outer end of the sampling reagent pack.

Preferably, above-mentioned sampling reagent package includes both ends open-ended post chamber, and the sealed fixed connection of post chamber sets up the reagent sealing membrane on the drum, and the rear end sets up the elasticity pressing sheet of evagination, and impales the mechanism and includes awl thorn pole, and awl thorn pole fixed connection is inboard in the middle part of the elasticity pressing sheet.

Preferably, the guide ring is installed to above-mentioned drum front end inboard, and the guide ring is connected inside the drum and is located sampling reagent package the place ahead through the collection fill, and the collection fill is towards the big toper structure of the little rear end of drum front end, and the guide ring side is provided with the water conservancy diversion hole, and the guide ring front end is provided with the extrusion portion of horn mouth.

Preferably, the rear end face of the piston is provided with an extension spring, the extension spring is sleeved on the push-pull rod, the upper end of the extension spring abuts against the end face of the piston, and the lower end of the extension spring abuts against the inner side of the rear end of the cylinder.

Preferably, a sample destroying reagent bag is arranged in another through hole in the side surface of the front end part of the cylinder, and the structural shape of the sample destroying reagent bag is consistent with that of the sampling reagent bag.

Preferably, the side surface of the cylinder is provided with scale marks, and the cylinder is made of transparent materials.

The utility model has the advantages that: compared with the prior art, the utility model discloses an effect as follows:

(1) the utility model is provided with the push-pull handle and is arranged in the guide cylinder, thereby playing a further role in guiding and pushing, and the push-pull handle has large contact area and is more labor-saving to push; the sampling device is provided with the limiting latch and the limiting clamping grooves, fixed-length telescopic sampling can be quickly realized, the extension length of the sampling test paper head can be quickly limited, the sampling accuracy and the application range are improved, the sampling test paper head is pushed to enter the throat of the oral cavity for sampling, a piercing mechanism is adopted to pierce a reagent bag and mix with a sampling sample after sampling, the sample is quickly collected, time and labor are saved, the detection inaccuracy caused by the need of transferring the sample is avoided, the detection accuracy is improved, and the piston is pushed to play a role in guiding and accurately positioning;

(2) the guide groove is adopted, so that the limit latch can move directionally conveniently, the positioning is realized quickly, and the detection efficiency and the detection accuracy are improved;

(3) the sampling reagent pack is simple in structure and good in sealing effect, the sampling test paper head is pushed to the sealing position, so that reagent liquid can flow to the sampling test paper head conveniently, the puncturing mechanism is simple, and the pressing is convenient and quick;

(4) the guide ring is arranged, so that the rigidity of the connecting rod can be improved in the process of pushing the connecting rod, deflection is avoided, the flow collecting hopper and the flow guide hole are arranged, rapid flow collection and drainage of a reagent to the sampling test paper head can be realized, the extrusion part is arranged, the protection liquid containing a sample can be extruded from the sampling test paper head, and manual extrusion is avoided;

(5) the extension spring is arranged, so that the quick reset of the piston and the reset of the sampling test paper head can be realized, and the sampling operation is more convenient;

(6) a sample destroying reagent bag is arranged for storing a sample inactivating reagent, and a sampling test paper head after sampling and collecting samples can be destroyed;

(7) the transparent cylinder and the scale marks are arranged, so that the distance pushed out by the sampling test paper head can be monitored.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is an enlarged view of part A of FIG. 1;

FIG. 3 is an enlarged view of the portion B of FIG. 1;

FIG. 4 is a schematic top view of the guide ring;

fig. 5 is a schematic view of a cylindrical section structure at the position of the limiting latch.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and specific embodiments.

Example 1: as shown in fig. 1-5, a sampler with fixed length extension comprises a cylinder 1, a sampling test paper head 2, a piston 3 and a push-pull rod 4, wherein the front end of the cylinder 1 is a test paper cavity (a sample pretreatment reagent bin, after a reagent is released to the part, the reagent is slowly dripped, according to the required amount of the sample, a sample adding button is pressed to wash the sample on the test paper and protect the sample), the piston 3 is elastically and hermetically connected in the cylinder 1, the push-pull rod 4 is fixedly connected to the center of the rear end part of the piston 3, the front end part of the piston 3 is fixedly connected with the sampling test paper head 2 through a connecting rod 5, the rear end of the push-pull rod 4 extends out of the lower end of the cylinder 1, the rear end of the push-pull rod 4 penetrates out of the cylinder 1 and is connected to a push-pull handle 16, the push-pull; the side face of the tail end of the push-pull handle 16 is fixedly connected with a limiting rod 22, the front end of the limiting rod 22 is provided with a limiting latch 18, the surface of the cylinder 1 is provided with a limiting clamping groove 19, and the push-pull limiting rod 22 can enable the limiting latch 18 to be embedded into the limiting clamping groove 19.

Preferably, the plurality of limiting clamping grooves 19 are located on the guide grooves 24, the guide grooves 24 are formed in the surface of the cylinder 1 in the length direction, the guide grooves are adopted, the limiting clamping teeth can move directionally, positioning is achieved rapidly, and the detection efficiency and the detection accuracy are improved.

Preferably, a sampling reagent bag 6 (containing a sample treatment liquid) is arranged in a through hole in the side face of the front end part of the cylinder 1, a piercing mechanism is arranged at the outer end of the sampling reagent bag 6, the sampling reagent bag 6 comprises a cylindrical cavity 7 with two open ends, the cylindrical cavity 7 is fixedly connected to the cylinder 1 in a sealing manner, a reagent sealing film 8 is arranged at the front end, an elastic pressing sheet 9 protruding outwards is arranged at the rear end, the piercing mechanism comprises a conical prick rod 10, the conical prick rod 10 is fixedly connected to the inner side of the middle part of the elastic pressing sheet 9, the sampling reagent bag is pierced by the piercing mechanism after sampling and mixed with a sampling sample, rapid collection of the sample is realized, the sampling reagent bag is simple in structure and good in sealing effect, the sampling test paper head is pushed to a sealing position, the reagent liquid can be conveniently flowed.

Preferably, the sampling sealing film 11 is arranged at the front end of the test paper cavity, and the sampling sealing film is well sealed in an unused state, so that the dustproof and anti-pollution effects are achieved.

Preferably, a guide ring 12 is mounted inside the front end of the cylinder 1, the guide ring 12 is connected inside the cylinder 1 through a collecting hopper 13 and is positioned in front of the sampling reagent pack 6, the collecting hopper 13 has a tapered structure with a smaller front end and a larger rear end, a guide hole 14 is formed inside the guide ring 12, and a flared extrusion part 23 is formed at the front end of the guide ring 12.

Preferably, the rear end face of the piston 3 is provided with an extension spring 15, the extension spring 15 is sleeved on the push-pull rod 4, the upper end of the extension spring abuts against the end face of the piston 3, and the lower end of the extension spring abuts against the inner side of the rear end of the cylinder 1.

Preferably, 1 front end of above-mentioned drum has cup jointed spherical cross-section's transparent safety cover 20, set up transparent safety cover (adopting the silica gel material) cover in patient's oral cavity and nasal cavity position, prevent that the droplet blowout from causing the infection to medical staff, and can clearly observe sampling test paper head and reach the position and remove the contact throat department and treat the sampling liquid, transparent safety cover supports and leans on in lip a week, play the positioning action, and cooperate spacing latch and spacing draw-in groove to promote, realize quick fixed length and stretch out.

Preferably, a sample destroying reagent bag 21 is arranged in another through hole in the side face of the front end part of the cylinder 1, the structural shape of the sample destroying reagent bag 21 is consistent with that of the sampling reagent bag 6, the sample destroying reagent bag is arranged to store a sample inactivating reagent, and a piercing mechanism which is the same as that of the sampling reagent bag 6 is adopted to pierce the reagent bag, so that a sampling test paper head after sampling and collecting samples can be destroyed.

Preferably, the side surface of the cylinder 1 is provided with scale marks, the cylinder 1 is made of transparent materials, and the transparent cylinder and the scale marks are arranged, so that the pushing distance of the sampling test paper head can be monitored.

The utility model aims to solve the problem that the sampling depth can not be determined in the traditional sampler; meanwhile, the sampling end retracts into the protection bin after sampling, so that sample protection is facilitated.

The use principle is as follows: contain mechanical storehouse and sampling end, press the push-and-pull handle in mechanical storehouse, stretch out the sampling test paper head of sampling end, according to the different instruction scale display depth of degree of pressure, carry out the cavity sampling of the different degree of depth.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention, therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims (8)

1. A sampler with fixed length is flexible which characterized in that: the sampling test paper device comprises a cylinder (1), a sampling test paper head (2), a piston (3) and a push-pull rod (4), wherein the front end of the cylinder (1) is a test paper cavity with a conical structure, the piston (3) is elastically and hermetically connected in the cylinder (1), the push-pull rod (4) is fixedly connected to the center of the rear end part of the piston (3), the front end part of the piston (3) is fixedly connected with the sampling test paper head (2) through a connecting rod (5), and the rear end of the push-pull rod (4) extends out of the lower end of the cylinder (1); 1. the tail end of the push-pull rod (4) penetrates out of the cylinder (1) and then is connected to a push-pull handle (16), the push-pull handle (16) is movably inserted into the guide cylinder (17), and the front end of the guide cylinder (17) is fixedly connected to the rear end of the cylinder (1); the side face of the tail end of the push-pull handle (16) is fixedly connected with a limiting rod (22), the front end of the limiting rod (22) is provided with limiting clamping teeth (18), the surface of the cylinder (1) is provided with a plurality of limiting clamping grooves (19) along the length direction of the cylinder (1), and the push-pull limiting rod (22) can enable the limiting clamping teeth (18) to be embedded into the limiting clamping grooves (19).

2. A sampler with fixed-length scalability according to claim 1, characterized in that: the limiting clamping grooves (19) are located on the guide grooves (24), and the guide grooves (24) are formed in the surface of the cylinder (1) in the length direction.

3. A sampler with fixed-length scalability according to claim 1, characterized in that: a sampling reagent bag (6) is arranged in a through hole on the side surface of the front end part of the cylinder (1), and a piercing mechanism is arranged at the outer end of the sampling reagent bag (6).

4. A sampler with fixed-length scalability according to claim 2, characterized in that: sampling reagent package (6) include both ends open-ended post chamber (7), and sealed fixed connection is on drum (1) in post chamber (7), and the front end sets up reagent sealing film (8), and the rear end sets up evagination elasticity and presses piece (9), pierces through the mechanism and includes awl thorn pole (10), and awl thorn pole (10) fixed connection is inboard in elasticity pressing piece (9) middle part.

5. A sampler with fixed-length scalability according to claim 1, characterized in that: the inner side of the front end of the cylinder (1) is provided with a guide ring (12), the guide ring (12) is connected inside the cylinder (1) through a flow collecting hopper (13) and is positioned in front of a sampling reagent bag (6), the flow collecting hopper (13) is of a conical structure which is small at the front end and large at the rear end, the inner side of the guide ring (12) is provided with a flow guide hole (14), and the front end of the guide ring (12) is provided with an extrusion part (23) with a horn mouth.

6. A sampler with fixed-length scalability according to claim 1, characterized in that: an extension spring (15) is arranged on the rear end face of the piston (3), the extension spring (15) is sleeved on the push-pull rod (4), the upper end of the extension spring abuts against the end face of the piston (3), and the lower end of the extension spring abuts against the inner side of the rear end of the cylinder (1).

7. A sampler with fixed-length scalability according to claim 1, characterized in that: a sample destroying reagent bag (21) is arranged in another through hole in the side surface of the front end part of the cylinder (1), and the structural shape of the sample destroying reagent bag (21) is consistent with that of the sampling reagent bag (6).

8. A sampler with fixed-length scalability according to claim 1, characterized in that: the side surface of the cylinder (1) is provided with scale marks, and the cylinder (1) is made of transparent materials.

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