Filter screen replacing structure for saliva filtering and collecting device

Abstract

The utility model discloses a filter screen replacing structure for a saliva filtering and collecting device, which comprises a test tube and a funnel tube which are communicated and connected with each other; a filtering piece is installed in the funnel pipe, limiting rods are connected to the two sides of the test tube in a penetrating mode, and the surfaces of the limiting rods are sleeved with fourth springs. Buckle assemblies are symmetrically arranged on the two sides of the funnel pipe; the buckle assembly comprises a connecting box fixedly connected with the funnel pipe. A clamping rod is slidably connected to the interior of the connecting box, through arrangement of a buckle assembly, the filter part can be more convenient to disassemble and assemble, so that the working efficiency of workers can be improved, meanwhile, through arrangement of a limiting rod and a fourth spring, the filter part can be more conveniently disassembled and assembled, and the working efficiency of the workers can be improved. A limiting rod can be clamped with a limiting groove under the acting force of a fourth spring, so that a funnel tube is connected with a test tube, and the saliva can be better collected.

Description

Technical Field

[0001] The utility model relates to the technical field of medical specimen sampling, in particular to a filter screen replacement structure for a saliva filtering and collecting device. Background Art

[0002] Saliva is a complex mixture that contains not only various proteins, but also DNA, RNA, fatty acids and various microorganisms. The saliva collector is mainly composed of a saliva collection funnel connected to a test tube. After collecting the saliva and removing the funnel, the filtering device inside the funnel needs to be disassembled and the funnel needs to be cleaned and disinfected to avoid mixing of the saliva.

[0003] Publication No. CN211534524U discloses an easily separable saliva filtering and collecting device. Through the coordinated use of structures such as a rotating wheel, a sliding column, a pull rod and a handle, after the arc-shaped funnel and the collecting tube body are connected, the baffle is opened. At this time, only the handle needs to be pulled. Due to the pressure change, the saliva sample at the arc-shaped funnel will fall into the collecting tube body through the filter screen, achieving the purpose of easy falling and the effect of integrated operation. However, the patent still has the following problems in actual use:

[0004] By pulling the handle, the saliva sample in the arc-shaped funnel will fall into the collection tube body through the filter due to pressure changes, thereby achieving the purpose of easy falling. However, after the filter falls into the collection tube, the bacteria on the filter may be mixed with the saliva, thereby reducing the accuracy of saliva detection.

[0005] A filter screen replacement structure for a saliva filtering and collecting device is proposed to solve the above-mentioned problems. Utility Model Content

[0006] The utility model aims to provide a filter screen replacement structure for a saliva filtering and collecting device, so as to solve the problem proposed in the above-mentioned background technology that, by pulling the handle, the saliva sample at the arc-shaped funnel will fall into the collection tube body through the filter screen due to pressure changes, thereby achieving the purpose of easy falling. However, after the filter screen falls into the collection tube, the bacteria on the filter screen may be mixed with the saliva, thereby reducing the accuracy of saliva detection.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a filter screen replacement structure for a saliva filtering and collecting device, comprising a test tube and a funnel tube, wherein the test tube is connected to the funnel tube;

[0008] A filter is installed inside the funnel tube, and limiting rods are connected through both sides of the test tube, and a fourth spring is sleeved on the surface of the limiting rod;

[0009] Also includes:

[0010] Buckle assemblies are symmetrically arranged on both sides of the funnel tube;

[0011] Wherein, the buckle assembly includes a connection box fixedly connected to the funnel tube;

[0012] Wherein, a clamping rod is slidably connected inside the connection box, and a sliding plate is penetrated and connected to a surface of one side of the clamping rod.

[0013] Preferably, a first spring is sleeved on the surface of the clamping rod, one side surface of the first spring is fixedly connected to the slide plate, the other side surface of the first spring is fixedly connected to the connection box, and a connecting rod is symmetrically installed in the middle of the top surface of the connection box.

[0014] Preferably, a second spring is sleeved on the surface of the connecting rod, a pressure rod is fixedly connected to the top surface of the second spring, the pressure rod is connected through the connecting rod, and a pressure block is fixedly connected to the middle of the bottom surface of the pressure rod.

[0015] Preferably, a telescopic rod is fixedly installed on one side of the skateboard, a third spring is sleeved on the surface of the telescopic rod, a clamping block is fixedly connected to the top surface of the third spring, the bottom surface of the third spring is fixedly connected to the clamping rod, and the top surface of the telescopic rod is fixedly connected to the clamping block.

[0016] Preferably, a card slot is provided in the middle of the top surface of the connection box, the card slot is engaged with the card block, and the card slot is slidably connected with the pressure block.

[0017] Preferably, one side surface of the fourth spring is fixedly connected to the limit rod, and the other side surface of the fourth spring is fixedly connected to the test tube. The funnel tube is symmetrically provided with limit grooves on both sides near the bottom, and the limit grooves are snap-connected with the limit rod, and the limit rod is connected through the test tube.

[0018] Preferably, engaging grooves are symmetrically provided on both sides of the filter element, the engaging grooves are engaged with the engaging rods, and the engaging rods are penetrated and connected with the funnel tube.

[0019] Compared with the prior art, the utility model has the following beneficial effects: the filter screen replacement structure for the saliva filtering and collecting device is provided with a snap assembly, so that the filter element can be more conveniently disassembled and installed, thereby improving the work efficiency of the staff; at the same time, the limiting rod and the fourth spring are provided, so that the limiting rod is engaged with the limiting groove under the action of the fourth spring, so that the funnel tube is connected with the test tube, so that the saliva can be better collected. The specific contents are as follows:

[0020] 1. By setting a buckle assembly, the slide plate is moved by pushing the card rod, and the movement of the slide plate can stretch the first spring. At the same time, when the card rod moves to a certain distance, the card block is lifted up under the action of the third spring, so that the card block and the card slot are engaged, so that the card rod can be limited;

[0021] 2. By setting a limit rod and a fourth spring, the limit rod is pulled to separate the limit rod from the limit groove, so that the funnel tube can be removed for cleaning, thereby making it more convenient for the staff to disassemble the funnel tube and the test tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0023] Figure 2 It is a schematic diagram of the overall internal structure of the utility model;

[0024] Figure 3 For this utility model Figure 2 A schematic diagram of the enlarged structure of the middle A area;

[0025] Figure 4 This is a schematic diagram of the overall operation structure of the buckle assembly in the utility model;

[0026] Figure 5 For this utility model Figure 4 Schematic diagram of the enlarged structure of area B in the middle.

[0027] In the figure: 1. test tube; 2. funnel tube; 3. filter element; 4. snap assembly; 401. connection box; 402. clamping rod; 403. slide plate; 404. first spring; 405. connection rod; 406. second spring; 407. pressure rod; 408. pressure block; 409. telescopic rod; 410. third spring; 411. clamping block; 412. clamping slot; 5. limiting rod; 6. fourth spring; 7. limiting slot; 8. locking slot. DETAILED DESCRIPTION

[0028] 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 implementation regulations described are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of 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.

[0029] See also Figure 1-5The utility model provides a technical solution: a filter screen replacement structure for a saliva filtering and collecting device, comprising a test tube 1 and a funnel tube 2, wherein the test tube 1 is connected to the funnel tube 2 through-connection; a filter element 3 is installed inside the funnel tube 2, and both sides of the test tube 1 are connected through-connected with a limit rod 5, and a fourth spring 6 is sleeved on the surface of the limit rod 5; further comprising: a buckle assembly 4 is symmetrically arranged on both sides of the funnel tube 2; wherein the buckle assembly 4 comprises a connection box 401 fixedly connected to the funnel tube 2; wherein a clamping rod 402 is slidably connected inside the connection box 401, and a slide plate 403 is connected through-connected to a surface of one side of the clamping rod 402, such as Figure 1-3 As shown, by setting the snap assembly 4, the filter 3 can be disassembled more conveniently. At the same time, the filter is composed of a filter screen and polyester fiber absorbent cotton, and the polyester fiber absorbent cotton can filter the vitamins contained in the saliva to about 30%, so that the result of saliva testing can be more accurate.

[0030] The surface of the clamping rod 402 is sleeved with a first spring 404, one side surface of the first spring 404 is fixedly connected to the slide plate 403, the other side surface of the first spring 404 is fixedly connected to the connection box 401, a connecting rod 405 is symmetrically installed in the middle of the top surface of the connection box 401, a second spring 406 is sleeved on the surface of the connecting rod 405, a pressure rod 407 is fixedly connected to the top surface of the second spring 406, the pressure rod 407 is connected to the connecting rod 405 through, and a pressure rod 407 is fixedly connected to the middle of the bottom surface of the pressure rod 407. Block 408, a telescopic rod 409 is fixedly installed on one side of the slide plate 403, a third spring 410 is sleeved on the surface of the telescopic rod 409, a clamping block 411 is fixedly connected to the top surface of the third spring 410, the bottom surface of the third spring 410 is fixedly connected to the clamping rod 402, the top surface of the telescopic rod 409 is fixedly connected to the clamping block 411, a clamping slot 412 is opened in the middle of the top surface of the connection box 401, the clamping slot 412 is clamped and connected to the clamping block 411, and the clamping slot 412 is slidably connected to the pressing block 408, as shown in FIG. Figure 3-5 As shown, by pushing the card rod 402, the movement of the card rod 402 can drive the movement of the slide plate 403. Through the movement of the slide plate 403, the first spring 404 can be stretched. At the same time, when the card rod 402 moves to a certain distance, the card block 411 is lifted up under the force of the third spring 410, so that a card block 411 and the card slot 412 are engaged, so that the card rod 402 can be limited. At the same time, the force of the third spring 410 is greater than the force of the first spring 404. After the card block 411 is engaged with the card slot 412, the force of the first spring 404 cannot separate the card block 411 from the card slot 412, so that the engagement between the card rod 402 and the engaging slot 8 is tighter, making the installation and disassembly of the filter element 3 more convenient.

[0031] One side surface of the fourth spring 6 is fixedly connected to the limiting rod 5, and the other side surface of the fourth spring 6 is fixedly connected to the test tube 1. The funnel tube 2 is symmetrically provided with limiting grooves 7 on both sides near the bottom. The limiting grooves 7 are engaged with the limiting rod 5, and the limiting rod 5 is connected through the test tube 1. Figure 2 As shown, by pulling the limiting rod 5 to separate the limiting rod 5 from the limiting groove 7, the funnel tube 2 can be removed more conveniently for cleaning and disinfection.

[0032] The filter element 3 is symmetrically provided with engaging grooves 8 on both sides, the engaging grooves 8 are engaged with the engaging rod 402, and the engaging rod 402 is connected with the funnel tube 2 through and through. Figure 2 As shown, by engaging the engaging groove 8 with the engaging rod 402 , the installation and disassembly of the filter element 3 is more convenient, thereby improving the work efficiency of the staff.

[0033] Working principle: Before using this saliva filtration collection device to replace the filter structure, you need to check the overall condition of the device to make sure it can work normally. Figure 1 - Figure 5 As shown, first, by setting the buckle assembly 4, by pushing the locking rod 402, the movement of the locking rod 402 can drive the movement of the slide plate 403, and the movement of the slide plate 403 can stretch the first spring 404, and at the same time, when the locking rod 402 moves to a certain distance, the locking block 411 is lifted up under the force of the third spring 410, so that the locking block 411 and the locking groove 412 are engaged, so that the locking rod 402 can be limited, and at the same time, the force of the third spring 410 is greater than the force of the first spring 404, so that after the locking block 411 is engaged with the locking groove 412, the force of the first spring 404 cannot separate the locking block 411 from the locking groove 412, so that the engagement between the locking rod 402 and the engaging groove 8 is tighter.

[0034] Secondly, by providing the limiting rod 5 and the fourth spring 6, the limiting rod 5 is pulled to separate the limiting rod 5 from the limiting groove 7, so that the funnel tube 2 can be removed more conveniently for cleaning.

[0035] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A filter screen replacement structure for a saliva filtering and collecting device, comprising a test tube (1) and a funnel tube (2), wherein the test tube (1) and the funnel tube (2) are connected in a through-connection manner; A filter element (3) is installed inside the funnel tube (2), and limiting rods (5) are connected through both sides of the test tube (1), and a fourth spring (6) is sleeved on the surface of the limiting rod (5); It is characterized in that Also includes: Buckle assemblies (4) are symmetrically arranged on both sides of the funnel tube (2); Wherein, the buckle assembly (4) comprises a connection box (401) fixedly connected to the funnel tube (2); The connection box (401) is slidably connected to a clamping rod (402) inside, and a sliding plate (403) is penetrated and connected to a surface of one side of the clamping rod (402).

2. The filter screen replacement structure for a saliva filtering and collecting device according to claim 1, characterized in that: A first spring (404) is sleeved on the surface of the clamping rod (402); one side surface of the first spring (404) is fixedly connected to the slide plate (403); the other side surface of the first spring (404) is fixedly connected to the connection box (401); and a connection rod (405) is symmetrically installed in the middle of the top surface of the connection box (401).

3. The filter screen replacement structure for a saliva filtering and collecting device according to claim 2, characterized in that: The surface of the connecting rod (405) is sleeved with a second spring (406), the top surface of the second spring (406) is fixedly connected with a pressure rod (407), the pressure rod (407) is connected to the connecting rod (405) through, and the middle of the bottom surface of the pressure rod (407) is fixedly connected with a pressure block (408).

4. The filter screen replacement structure for a saliva filtering and collecting device according to claim 1, characterized in that: A telescopic rod (409) is fixedly installed on one side of the slide plate (403); a third spring (410) is sleeved on the surface of the telescopic rod (409); a clamping block (411) is fixedly connected to the top surface of the third spring (410); the bottom surface of the third spring (410) is fixedly connected to the clamping rod (402); and the top surface of the telescopic rod (409) is fixedly connected to the clamping block (411).

5. The filter screen replacement structure for a saliva filtering and collecting device according to claim 1, characterized in that: A card slot (412) is provided in the middle of the top surface of the connection box (401), the card slot (412) is card-engaged with the card block (411), and the card slot (412) is slidably connected with the pressing block (408).

6. The filter screen replacement structure for a saliva filtering and collecting device according to claim 1, characterized in that: One side surface of the fourth spring (6) is fixedly connected to the limiting rod (5), and the other side surface of the fourth spring (6) is fixedly connected to the test tube (1). The funnel tube (2) is symmetrically provided with limiting grooves (7) on both sides near the bottom, and the limiting grooves (7) are snap-fitted and connected to the limiting rod (5), and the limiting rod (5) is connected through the test tube (1).

7. The filter screen replacement structure for a saliva filtering and collecting device according to claim 1, characterized in that: Clamping grooves (8) are symmetrically provided on both sides of the filter element (3); the clamping grooves (8) are clamped and connected with the clamping rod (402); and the clamping rod (402) is connected through the funnel tube (2).

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