Liquid sampler for detection
By designing an easy-to-clean liquid sampler, the problem of detection errors caused by cleaning dead spots in existing samplers is solved, enabling thorough cleaning and convenient replacement, thus improving the practicality and maintenance convenience of the sampler.
Patent Information
- Application Number
- CN202423051934.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-11
- Publication Date
- 2025-11-21
- Estimated Expiration
- 2034-12-11
AI Technical Summary
The existing samplers are difficult to clean and disinfect, and there are blind spots in the cleaning process, which leads to large detection errors.
A liquid sampler comprising a sampling tube and a push rod is designed. The sampling tube is open at both ends and contains a push rod and a suction piston. The push rod is equipped with a pressing plate and the suction piston has soft bristles. The inner wall is cleaned by reciprocating the push rod, and the worn parts are easy to replace.
It eliminates the need for manual cleaning, resulting in more thorough cleaning, fewer cleaning dead spots, reduced detection errors, easier component replacement, and improved practicality and ease of maintenance of the device.
Smart Images
Figure CN223581474U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to agricultural product detection technical field, concretely is a liquid sampler for detection. BACKGROUND
[0002] Agricultural products are an indispensable part of people's life, in agricultural product production activities, the water quality needs to be detected, so as to timely cope with a series of problems encountered during the growth of agricultural products, and the nutrient elements required by agricultural products, to ensure the normal growth of agricultural products.
[0003] When detecting water quality, a sampler needs to be used, the existing water quality sampler is commonly in the form of a syringe, the sampler in the form of a syringe is convenient for staff to extract samples and is convenient to operate, but the existing sampler still has deficiencies, after the water quality of an area is monitored, the staff needs to disassemble the sampler for cleaning and disinfection, to avoid serious detection errors, the existing sampler is open at one end and is connected with a thin liquid taking pipe at the other end, in a semi-closed state, when cleaning, the staff's fingers cannot be inserted into the inside of the sampler for careful brushing, there is a cleaning dead angle, which will lead to larger subsequent detection errors.
[0004] Therefore, we provide a liquid sampler for detection. CONTENT OF THE UTILITY MODEL
[0005] One of the technical problems to be solved by the present application is that the existing sampler is more troublesome to clean and disinfect, the existing sampler is open at one end and is connected with a thin liquid taking pipe at the other end, in a semi-closed state, when cleaning, the staff's fingers cannot be inserted into the inside of the sampler for careful brushing, there is a cleaning dead angle, which will lead to larger subsequent detection errors.
[0006] To solve the above technical problems, the present application provides a liquid sampler for detection, which comprises a sampling pipe and a push injection rod, the push injection rod is inserted into the inside of the sampling pipe, one end of the push injection rod extends out of the sampling pipe, a pressing piece is arranged on the extending end, and an insertion plate is arranged at the end of the push injection rod away from the pressing piece; both ends of the sampling pipe are open, an outer thread is arranged at one end of the sampling pipe, a connecting cover is threadedly connected to the outer thread, and a drawing pipe is arranged on the connecting cover and connected with the sampling pipe; the insertion plate is connected with a drawing and injection piston and a connecting piece, the drawing and injection piston is fixedly connected with a fixed plate in the connecting piece, a plurality of soft bristles are uniformly arranged on the outer surface of the fixed plate, the drawing and injection piston is closely connected with the inner wall of the sampling pipe, and the soft bristles are attached to the inner wall of the sampling pipe.
[0007] In some embodiments, the fixed plate is closer to the pressing piece of the push injection rod than the drawing and injection piston, and the fixed plate is made of plastic.
[0008] In some embodiments, the connecting piece further comprises a plug-in slot, an embedding entrance and a positioning slot on the fixing plate, the plug-in plate is plugged in the plug-in slot, the embedding entrance and the positioning slot are in communication with each other and are distributed in the circumferential direction, a plurality of positioning pieces corresponding to the embedding entrance and the positioning slot are arranged on the outer surface of the plug-in plate, and the positioning pieces can be embedded in the embedding entrance and slid into the positioning slot.
[0009] In some embodiments, the outer wall of the sampling tube is provided with a milliliter line.
[0010] In some embodiments, a sealing ring is arranged on the end face of the sampling tube close to the external thread, and a sealing groove adapted to the sealing ring is arranged on the inner wall of the connecting cover.
[0011] In some embodiments, a rubber gasket ring is arranged in the sealing groove.
[0012] In some embodiments, a clamping groove in communication with the positioning slot is arranged on the fixing plate, and a clamping protrusion adapted to the clamping groove is arranged on the positioning piece.
[0013] The utility model at least has the following beneficial effects:
[0014] 1. The device is free from manual cleaning of the sampling tube, and only needs to reciprocally pull and push the injection rod to make the injection piston and soft bristles repeatedly slide and rub the inner wall of the sampling tube, so that the operation is convenient, the sampling tube with two open ends reduces the cleaning dead angle, the cleaning is more thorough, the subsequent sampling detection work is smoothly carried out, and the practicability is high.
[0015] 2. By setting the injection rod and the injection piston which are convenient to disassemble, the soft bristles which are seriously worn can be replaced, the device is convenient to replace parts, is favorable for later maintenance and processing, and is convenient for long-term use. BRIEF DESCRIPTION OF DRAWINGS
[0016] Figure 1 It is a whole structure schematic view of the utility model;
[0017] Figure 2 It is Figure 1 a structure schematic view after the connecting cover is disassembled;
[0018] Figure 3 It is Figure 2 an axonometric structure schematic view;
[0019] Figure 4 It is a structure schematic view after the connecting cover and the sampling tube are hidden;
[0020] Figure 5 It is Figure 4Structural diagram of middle structure splitting;
[0021] Figure 6 Structural diagram for showing the position of the clamping groove in example 2;
[0022] Figure 7 Structural diagram for showing the position of the clamping block in example 2.
[0023] In the figure: 1, sampling tube; 2, milliliter line; 3, push rod; 4, connecting cover; 5, extraction tube; 6, external thread; 7, sealing ring; 8, sealing groove; 9, injection piston; 10, connecting piece; 11, fixed plate; 12, soft brush; 13, plug-in groove; 14, embedding entrance; 15, plug-in plate; 16, positioning sheet; 17, positioning groove; 18, clamping groove; 19, clamping block. DETAILED DESCRIPTION
[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.
[0025] Example 1:
[0026] Please refer to Figures 1 to 5 The utility model provides a technical scheme: a liquid sampler for detection, including sampling tube 1 and push rod 3, sampling tube 1 is colorless transparent plastic material, push rod 3 is inserted in the inside of sampling tube 1, and the one end of push rod 3 is stretched out from the outside of sampling tube 1, is provided with pressing sheet on the stretched end, and the one end of push rod 3 away from pressing sheet is provided with plug-in plate 15;Both ends of sampling tube 1 are open, and external thread 6 is arranged on one end of sampling tube 1, external thread 6 is plastic material, connecting cover 4 is connected in screw thread on external thread 6, and extraction tube 5 is arranged on connecting cover 4 and is connected with sampling tube 1;Injection piston 9 and connecting piece 10 are connected on plug-in plate 15, injection piston 9 is fixedly connected with fixed plate 11 in connecting piece 10, a plurality of evenly distributed soft brush 12 are arranged on the outer surface of fixed plate 11, injection piston 9 is closely connected with the inner wall of sampling tube 1, soft brush 12 is attached to the inner wall of sampling tube 1, fixed plate 11 is closer to the pressing sheet of push rod 3 than injection piston 9, and fixed plate 11 is plastic material.
[0027] When using, sampling tube 1 is taken, push rod 3 is held with the other hand, extraction tube 5 is put into the liquid to be detected, and the sample can be extracted by slowly pulling push rod 3 out, and the operation mode is similar to the existing syringe, which is more convenient.
[0028] When cleaning, the connecting cover 4 is unscrewed and removed, and the sampling tube 1 is immersed in the cleaning liquid, and the end with the external thread 6 is immersed in the cleaning liquid, and then the push-pull rod 3 is reciprocally pulled and pushed, in the process, the inner wall of the sampling tube 1 is respectively rubbed by the push-pull piston 9 and the soft brush 12, so that the cleaning is more thorough, and then the connecting cover 4 is cleaned separately, the device is free from manual cleaning in the sampling tube 1, and is convenient to operate and clean.
[0029] In the embodiment, as shown in Figure 4 and Figure 5 , the connecting piece 10 further comprises a plug-in slot 13, an embedding entrance 14 and a positioning slot 17 which are arranged on the fixed plate 11, the plug-in plate 15 is plugged in the plug-in slot 13, the embedding entrance 14 and the positioning slot 17 are in communication with each other and are distributed in the circumferential direction, a plurality of positioning pieces 16 which are in one-to-one correspondence with the embedding entrance 14 and the positioning slot 17 are arranged on the outer surface of the plug-in plate 15, and the positioning piece 16 can be embedded in the embedding entrance 14 and slide into the positioning slot 17, so that the damaged push-pull piston 9 can be replaced, the soft brush 12 which is seriously worn can be replaced, and the device is convenient for long-term use.
[0030] When replacing, the push-pull rod 3 is pulled out of the sampling tube 1 together with the push-pull piston 9, one hand holds the push-pull piston 9 and the other hand holds the push-pull rod 3, the push-pull piston 9 is rotated to make the positioning piece 16 slide into the embedding entrance 14, then the push-pull piston 9 is pulled out, the new push-pull piston 9 is embedded in the embedding entrance 14, the positioning piece 16 slides from the embedding entrance 14 into the positioning slot 17, and the replacement is completed, so that the device is simple to operate, convenient and fast, and convenient for use, and is beneficial to long-term use of the sampler.
[0031] In the embodiment, as shown in Figure 1 and Figure 2 , the outer wall of the sampling tube 1 is provided with a milliliter line 2, so that the user can observe and quantitatively sample and detect, and data recording is convenient.
[0032] In the embodiment, as shown in Figure 2 and Figure 3 , the end of the sampling tube 1 close to the external thread 6 is provided with a sealing ring 7, the inner wall of the connecting cover 4 is provided with a sealing groove 8 matched with the sealing ring 7, and a rubber gasket is arranged in the sealing groove 8, after the sampling tube 1 is connected and fixed with the connecting cover 4, the sealing ring 7 is embedded in the sealing groove 8 to play a sealing role, and the sealing ring 7 is tightly pressed on the rubber gasket, so that liquid leakage is avoided.
[0033] The implementation principle of the liquid sampler for detection in the embodiment is that when in use, the sampling tube 1 is taken, the push-pull rod 3 is held with the other hand, the sampling tube 5 is put into the liquid to be detected, and the sample is slowly pulled out by slowly pulling the push-pull rod 3 outwards, and the operation mode is similar to that of the existing syringe, and is relatively convenient.
[0034] When cleaning, the connecting cover 4 is unscrewed and removed, and is soaked in cleaning liquid, one end of the sampling tube 1 with the external thread 6 is immersed in the cleaning liquid, and then the push-pull rod 3 is reciprocatingly pulled and pushed, in the process, the inner wall of the sampling tube 1 is respectively rubbed by the push-pull piston 9 and the soft brush 12, so that the cleaning is more thorough, and then the connecting cover 4 is cleaned separately, the device is free from manual cleaning in the sampling tube 1, and is convenient to operate and clean.
[0035] When replacing, the push-pull rod 3 is pulled out of the sampling tube 1 together with the push-pull piston 9, one hand holds the push-pull piston 9, one hand holds the push-pull rod 3, the positioning sheet 16 is slid into the embedding entrance 14 by rotating the push-pull piston 9, then the push-pull piston 9 is pulled out, the embedding entrance 14 of the new push-pull piston 9 is aligned with the positioning sheet 16, the positioning sheet 16 is slid from the embedding entrance 14 into the positioning groove 17, and the replacement is completed, the operation is simple, convenient and fast, and the device is convenient to use and beneficial to long-term use of the sampler.
[0036] Example 2:
[0037] Please refer to Figures 6 to 7 The technical scheme provided by the utility model has the beneficial effects that:
[0038] Different from example 1, the fixing plate 11 is provided with a clamping groove 18 in communication with the positioning groove 17, and the positioning sheet 16 is provided with a clamping protrusion 19 matched with the clamping groove 18, when the positioning sheet 16 is slid into the positioning groove 17, the clamping protrusion 19 is inserted into the clamping groove 18, and the installation stability is further improved, and the probability of loosening in use is reduced.
[0039] It should be noted that the relational terms herein such as first and second and the like are used only to differentiate one entity or action from another, and do not necessarily require or imply that these entities or actions occur in any temporal or chronological sequence. Moreover, the terms "comprising", "including", or any other variant are intended to cover non-exclusive inclusions, such that processes, methods, articles, or apparatuses that comprise a list of elements are not required to include only those elements in the list, but can include other elements not expressly listed or inherent to such processes, methods, articles, or apparatuses.
[0040] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the utility model.
Claims
1. A detection liquid sampler comprising a sampling tube (1) and a bolus rod (3), characterized in that: The push-in rod (3) is inserted in the inside of the sampling tube (1), one end of the push-in rod (3) extends from the outside of the sampling tube (1), a pressing sheet is arranged on the extending end, and an insertion plate (15) is arranged on the end of the push-in rod (3) away from the pressing sheet; Both ends of the sampling tube (1) are open, an outer thread (6) is arranged on one end of the sampling tube (1), a connecting cover (4) is threadedly connected on the outer thread (6), and a suction tube (5) in communication with the sampling tube (1) is arranged on the connecting cover (4); The insertion plate (15) is connected with a suction and injection piston (9) and a connecting piece (10), the suction and injection piston (9) is fixedly connected with a fixed plate (11) in the connecting piece (10), a plurality of soft bristles (12) are uniformly arranged on the outer surface of the fixed plate (11), the suction and injection piston (9) is tightly connected with the inner wall of the sampling tube (1), and the soft bristles (12) are attached to the inner wall of the sampling tube (1).
2. A liquid sampler for use in detection according to claim 1, characterised in that: The fixed plate (11) is closer to the pressing sheet of the push-in rod (3) than the suction and injection piston (9), and the fixed plate (11) is made of plastic.
3. A liquid sampler for use in detection according to claim 1, characterized in that: The connecting piece (10) further comprises an insertion slot (13), an embedding entrance (14) and a positioning slot (17) which are arranged on the fixed plate (11), the insertion plate (15) is inserted in the insertion slot (13), the embedding entrance (14) and the positioning slot (17) are in communication with each other and are distributed in the circumferential direction, a plurality of positioning sheets (16) are arranged on the outer surface of the insertion plate (15) and correspond to the embedding entrance (14) and the positioning slot (17) one by one, the positioning sheet (16) can be embedded in the embedding entrance (14) and slid into the positioning slot (17).
4. A liquid sampler for use in detection according to claim 1, characterized in that: A milliliter line (2) is arranged on the outer wall of the sampling tube (1).
5. A liquid sampler for use in detection according to claim 1, characterized in that: A sealing ring (7) is arranged on the end face of the sampling tube (1) close to the outer thread (6), and a sealing groove (8) adapted to the sealing ring (7) is arranged on the inner wall of the connecting cover (4).
6. A liquid sampler for use in detection according to claim 5, characterised in that: A rubber gasket ring is arranged in the sealing groove (8).
7. A liquid sampler for use in detection according to claim 3, characterised in that: A clamping groove (18) in communication with the positioning slot (17) is arranged on the fixed plate (11), and a clamping protrusion (19) adapted to the clamping groove (18) is arranged on the positioning sheet (16).