A sample introduction device for an analyzer system

Abstract

This utility model discloses a sample introduction device for an analyzer system, applied to the sample introduction of the analyzer body. It includes a bottom cover, a movable cover, and a locking assembly. The bottom cover is located at the feed inlet of the analyzer body. The movable cover is sleeved on the outside of the bottom cover. A fixing part is provided at the bottom of the movable cover, and a sample tube is provided at the bottom of the fixing part. The locking assembly includes a connecting part, with multiple connecting parts symmetrically arranged on the inner wall of the movable cover. A snap-fit ​​part is provided at the top of the bottom cover, and a positioning part is inserted and connected to the top of the bottom cover. This utility model uses the fixing part to fix the sample tube. The movable cover and the bottom cover are fixed by the connecting part and the snap-fit ​​part, thereby fixing the movable cover and thus the sample tube. When facing a large number of testing tasks, compared to the time-consuming operation of repeatedly screwing and disassembling the movable cover and the bottom cover, this design enables rapid disassembly and assembly of the movable cover and the bottom cover, reducing the wasted testing time due to the disassembly and assembly of the movable cover.

Description

Technical Field

[0001] This utility model relates to the field of water quality testing equipment technology, and in particular to a sample introduction device for an analyzer system. Background Technology

[0002] In the sample introduction device of analytical instruments (such as water quality analyzers), the detection port needs to be fixed and sealed by the cooperation of the bottom cover and the movable cover.

[0003] Traditional designs often use threaded connections to fix the movable cover and the bottom cover. In large-volume testing tasks, it is necessary to frequently rotate and disassemble the movable cover to replace the test sample tube. The threaded operation is time-consuming, which prolongs the processing time of a single sample and reduces the overall testing throughput.

[0004] Therefore, in order to solve the problem of rapid disassembly and assembly of the movable cover of the detection port for sample injection, a sample injection device for the analyzer system is proposed. Utility Model Content

[0005] The purpose of this invention is to provide a sample introduction device for an analyzer system to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a sample introduction device for an analyzer system, used for sample introduction into the analyzer body, comprising: A bottom cover is located at the feed inlet of the analyzer body. A movable cover is fitted onto the outside of the bottom cover, and a fixing part is provided at the bottom of the movable cover, with a test sample tube provided at the bottom of the fixing part; A locking assembly is provided for locking a bottom cover and a movable cover. The locking assembly includes a connecting part, and a plurality of connecting parts are symmetrically arranged on the inner wall of the movable cover. The top of the bottom cover is provided with a snap-fit ​​part for engaging the connecting parts, and the top of the bottom cover is interposed with a positioning part for positioning a positioning rod and the bottom cover.

[0007] Preferably, the insertion part includes positioning rods, and a plurality of positioning rods are disposed on the inner wall of the movable cover, with the side of the positioning rods inserted and connected to the top of the bottom cover.

[0008] Preferably, the snap-fit ​​portion includes: A snap-fit ​​groove is provided on the top of the bottom cover, and the snap-fit ​​groove is used for the insertion and movement of the positioning rod.

[0009] Preferably, the positioning part includes: Insert rod, the bottom end of which is sequentially inserted and connected to the top of the bottom cover and the side of the positioning rod; A retaining ring, which is sleeved on the outside of the insertion rod; A compression spring, which is sleeved on the outside of the insertion rod and located at the top of the fixing ring; A limiting ring post is sleeved on the outside of the insertion rod and located on top of the compression spring. The outside of the limiting ring post is fixedly connected to the top of the bottom cover.

[0010] Preferably, the positioning rod has a slot on its side, which is used for the insertion and positioning of the end of the rod.

[0011] Preferably, the outer side of the movable cover is provided with a plurality of friction grooves, which are used to increase the friction of the movable cover.

[0012] Preferably, the fixing part includes a fixing sleeve, which is disposed on the inner wall of the movable cover and sleeved on the outer side of the test sample tube.

[0013] The technical effects and advantages of this utility model are as follows: This invention features a bottom cover and a movable cover at the detection port of the analyzer body. The movable cover secures the sample tube via a fixing part, and the movable cover and bottom cover are locked together by a locking assembly with a plug and a snap-fit ​​part, thereby securing the movable cover and the sample tube. When dealing with large-volume testing tasks, compared to the time-consuming operation of repeatedly screwing and disassembling the movable cover and bottom cover, this design enables quick assembly and disassembly of the movable cover and bottom cover, reducing the wasted testing time caused by the disassembly and assembly of the movable cover. Attached Figure Description

[0014] Figure 1 This is one of the overall structural schematic diagrams of this utility model.

[0015] Figure 2 The second schematic diagram shows the overall structure of this utility model.

[0016] Figure 3 This is a partial cross-sectional view of the entire utility model.

[0017] Figure 4 This utility model Figure 3 Enlarged view of the structure at point A in the middle.

[0018] Figure 5 This is a schematic diagram of the structure of the bottom cover of this utility model.

[0019] Figure 6 This is a cross-sectional view of the movable cover of this utility model.

[0020] In the diagram: 1. Bottom cover; 101. Snap-fit ​​groove; 2. Movable cover; 201. Fixing sleeve; 3. Analyzer body; 4. Friction groove; 5. Detection sample tube; 6. Positioning part; 601. Insert rod; 602. Fixing ring; 603. Compression spring; 604. Limiting ring post; 7. Positioning rod; 701. Slot. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] This utility model provides, for example Figure 1-6 As shown: Example 1: A sample introduction device for an analyzer system, used for sample introduction in the analyzer body 3, includes: a bottom cover 1, a movable cover 2, and a locking component; It should be noted that the bottom cover 1 is located at the feed inlet of the analyzer body 3, the movable cover 2 is sleeved on the outside of the bottom cover 1, the bottom of the movable cover 2 is provided with a fixing part, the bottom of the fixing part is provided with a detection sample tube 5, and the locking component is used to lock the bottom cover 1 and the movable cover 2. Specifically, the analyzer body 3 is designed with reference to the working principle of the HD-scod water quality analyzer. Both the movable cover 2 and the bottom cover 1 are made of plastic. The bottom cover 1 and the analyzer body 3 are glued together. Multiple friction grooves 4 are provided around the outer side of the movable cover 2. The friction grooves 4 are used to increase the friction of the movable cover 2. Furthermore, the locking component includes a plug-in part, multiple plug-in parts are symmetrically arranged on the inner wall of the movable cover 2, the top of the bottom cover 1 is provided with a snap-fit ​​part for snapping the plug-in part, and the top of the bottom cover 1 is interposed and connected with a positioning part 6 for positioning the positioning rod 7 and the bottom cover 1. Specifically, the insertion part includes positioning rods 7, and multiple positioning rods 7 are disposed on the inner wall of the movable cover 2, with the sides of the positioning rods 7 inserted and connected to the top of the bottom cover 1; It should be noted that the end of the positioning rod 7 is inserted into the inner wall of the movable cover 2, and the insertion point between the positioning rod 7 and the movable cover 2 is fixed with glue. Specifically, the snap-fit ​​part includes a snap-fit ​​slot 101; It should be noted that the snap-fit ​​groove 101 is opened on the top of the bottom cover 1, and the snap-fit ​​groove 101 is used for the insertion and movement of the positioning rod 7. Specifically, the locking groove 101 is L-shaped. After the positioning rod 7 enters the locking groove 101, the movable cover 2 is rotated to realize the movement and locking of the positioning rod 7. It should be noted that the positioning part 6 includes: a rod 601, a retaining ring 602, a compression spring 603, and a limiting ring post 604; Specifically, the bottom end of the insertion rod 601 is sequentially inserted and connected to the top of the bottom cover 1 and the side of the positioning rod 7. The fixing ring 602 is sleeved on the outside of the insertion rod 601. The compression spring 603 is sleeved on the outside of the insertion rod 601 and located on top of the fixing ring 602. The limiting ring post 604 is sleeved on the outside of the insertion rod 601 and located on top of the compression spring 603. The outside of the limiting ring post 604 is fixedly connected to the top of the bottom cover 1. It should be noted that the top of the bottom cover 1 is provided with a through hole, which is connected to the inner cavity of the snap-fit ​​groove 101. The insertion rod 601 moves in the middle of the limiting ring post 604. The limiting ring post 604 is fixed to the inner wall of the through hole with glue, and the fixing ring 602 is fixed to the insertion rod 601 with glue. Specifically, the positioning rod 7 has a slot 701 on its side. The slot 701 is used for the insertion and positioning of the end of the insertion rod 601. The bottom end of the insertion rod 601 is set as a spherical protrusion. When unlocking, the positioning rod 7 rotates, and the inner wall of the slot 701 presses the bottom end of the insertion rod 601, thereby unlocking and disengaging the end of the insertion rod 601 from the slot 701.

[0023] Example 2: A fixing part applied to the sample injection device of the analyzer system in Example 1; Specifically, the fixing part includes a fixing sleeve 201, which is disposed on the inner wall of the movable cover 2 and sleeved on the outer side of the test sample tube 5. It should be noted that the fixing sleeve 201 is made of rubber, and the fixing sleeve 201 and the movable cover 2 are fixed by adhesive. The test sample tube 5 is fixed by squeezing the middle of the fixing sleeve 201.

[0024] In practical use, a bottom cover 1 and a movable cover 2 are provided at the detection port of the analyzer body 3. The movable cover 2 fixes the test sample tube 5 through a fixing part. The movable cover 2 and the bottom cover 1 are connected by the insertion part and the snap-fit ​​part of the locking component to fix the movable cover 2, thereby fixing the test sample tube 5. When facing a large number of testing tasks, compared with the time-consuming operation of repeatedly screwing the movable cover 2 and the bottom cover 1 to fix, this design realizes the quick assembly and disassembly of the movable cover 2 and the bottom cover 1, reducing the waste of testing time caused by the assembly and disassembly of the movable cover 2.

[0025] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A sample introduction device for an analyzer system, used for sample introduction into the analyzer body (3), characterized in that, include: Bottom cover (1), the bottom cover (1) is located at the feed inlet of the analyzer body (3); The movable cover (2) is sleeved on the outside of the bottom cover (1). The bottom of the movable cover (2) is provided with a fixing part, and the bottom of the fixing part is provided with a test sample tube (5). The locking component is used to lock the bottom cover (1) and the movable cover (2). The locking component includes a plug-in part, and a plurality of plug-in parts are symmetrically arranged on the inner wall of the movable cover (2). The top of the bottom cover (1) is provided with a snap-fit ​​part for snapping the plug-in part. The top of the bottom cover (1) is interposed and connected with a positioning part (6) for positioning the positioning rod (7) and the bottom cover (1).

2. The sample introduction device for an analyzer system according to claim 1, characterized in that, The insertion part includes a positioning rod (7), and a plurality of the positioning rods (7) are disposed on the inner wall of the movable cover (2), and the side of the positioning rod (7) is inserted and connected to the top of the bottom cover (1).

3. The sample introduction device for an analyzer system according to claim 2, characterized in that, The snap-fit ​​portion includes: A snap-fit ​​groove (101) is provided on the top of the bottom cover (1) and is used for the insertion and movement of the positioning rod (7).

4. The sample introduction device for an analyzer system according to claim 2, characterized in that, The positioning part (6) includes: Insert rod (601), the bottom end of which is sequentially inserted and connected to the top of the bottom cover (1) and the side of the positioning rod (7); A retaining ring (602) is sleeved on the outside of the insert rod (601); Compression spring (603), which is sleeved on the outside of the insert rod (601) and located on top of the retaining ring (602); A limiting ring post (604) is sleeved on the outside of the insert rod (601) and located on top of the compression spring (603). The outside of the limiting ring post (604) is fixedly connected to the top of the bottom cover (1).

5. The sample introduction device for an analyzer system according to claim 4, characterized in that, The positioning rod (7) has a slot (701) on its side, which is used for the insertion and positioning of the end of the insertion rod (601).

6. The sample introduction device for an analyzer system according to claim 2, characterized in that, The movable cover (2) has multiple friction grooves (4) around its outer side, which are used to increase the friction of the movable cover (2).

7. The sample introduction device for an analyzer system according to claim 1, characterized in that, The fixing part includes a fixing sleeve (201), which is disposed on the inner wall of the movable cover (2) and sleeved on the outer side of the test sample tube (5).

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