A sample porcelain boat connection structure and sample porcelain boat

Abstract

This utility model relates to a sample ceramic boat connection structure and a sample ceramic boat, and relates to the field of solid sample analysis technology using an organic carbon analyzer. It includes a ceramic boat push rod, a receiving groove on the push rod for engaging with one end of the ceramic boat, and a locking mechanism on the receiving groove for locking and unlocking the ceramic boat. The locking mechanism includes a housing on the outer wall of the receiving groove, a pressing cap slidably disposed at the end of the housing away from the receiving groove, a main shaft disposed inside the housing and connected to the pressing cap, a partition on the outer wall of the main shaft, a spring connected at one end of the partition away from the pressing cap and sleeved on the main shaft, an elastic connecting rod disposed on the main shaft between the partition and the pressing cap, and a locking groove on the side wall of the housing for the elastic connecting rod to enter and engage. An elastic switch is provided on the outer wall of the housing. By setting up the locking mechanism, the sample ceramic boat can be pushed in and pulled out without a ceramic boat support, greatly improving detection efficiency.

Description

Technical Field

[0001] This utility model belongs to the technical field of analyzing solid samples using an organic carbon analyzer, and specifically relates to a sample ceramic boat connection structure and a sample ceramic boat. Background Technology

[0002] The existing instrument (Shimadzu Organic Carbon Analyzer TOC-L+SSM5000) primarily detects carbon dioxide content in solid samples using a non-dispersive infrared detector (NDIR). The specific operation is as follows:

[0003] First, place the weighed sample in a corundum ceramic boat, then use tweezers to place the boat on the boat holder. Push it into the heating chamber according to the instrument's instructions to determine the total carbon content. Then, place another weighed sample in a corundum ceramic boat, and use tweezers to place it on the boat holder. After adding acid, push it into another heating chamber to determine the inorganic carbon content. The organic carbon content in the sample is calculated using the difference method.

[0004] In actual operation, the existing sample porcelain boats need to be supported by porcelain boat brackets. However, the porcelain boat brackets need to be replaced after testing about 400 samples. This not only wastes materials, but also requires disassembling the entire sample boat push rod, removing the screws, and replacing it with a new porcelain boat bracket, which is time-consuming and labor-intensive.

[0005] Therefore, in order to address the above-mentioned technical problems, designing a sample porcelain boat connection structure and a sample porcelain boat that eliminates the need for a porcelain boat support, allowing the sample porcelain boat to be pushed in and pulled out, greatly improving testing efficiency and reducing the cost of sample testing, is a technical problem that needs to be solved by those skilled in the art. Utility Model Content

[0006] To address the aforementioned issues, this invention provides a sample porcelain boat connection structure and a sample porcelain boat that eliminates the need for a porcelain boat support, enabling the pushing and pulling of the sample porcelain boat, thereby significantly improving testing efficiency and reducing sample testing costs.

[0007] To achieve the above objectives, this utility model provides the following solution:

[0008] A sample porcelain boat connection structure includes a porcelain boat push rod, a receiving groove disposed on the porcelain boat push rod for engaging with one end of the porcelain boat, and a locking mechanism disposed on the receiving groove for locking and unlocking the porcelain boat.

[0009] The locking mechanism includes a housing disposed on the outer wall of the receiving groove, a pressing cap slidably disposed on the end of the housing away from the receiving groove, a main shaft disposed inside the housing and connected to the pressing cap, a partition disposed on the outer wall of the main shaft, a spring whose end is connected to the end of the partition away from the pressing cap and sleeved on the main shaft, an elastic connecting rod disposed on the main shaft between the partition and the pressing cap, and a locking groove disposed on the side wall of the housing for the elastic connecting rod to enter and complete the locking. An elastic switch is disposed on the outer wall of the housing. When the elastic switch is pressed, the elastic switch passes into the locking groove and pushes the elastic connecting rod out of the locking groove.

[0010] Preferably, a guide groove is provided on the inner wall of the outer casing, and a slider that cooperates with the guide groove is provided on the outer wall of the pressing cap.

[0011] Preferably, the receiving groove is a U-shaped groove, one end of the porcelain boat extends into the opening of the U-shaped groove, and the U-shaped groove is provided with a through hole that mates with the porcelain boat. The end of the main shaft away from the pressing cap extends into the through hole to lock the porcelain boat.

[0012] Preferably, the elastic link is set at an acute angle to the extension direction of the main shaft near the pressing cap.

[0013] Preferably, the elastic connecting rod is a stainless steel rod.

[0014] Preferably, the resilient switch includes a first connecting rod connected to the housing, a second connecting rod corresponding to the opening of the snap-fit ​​groove, and a third connecting rod for connecting the first connecting rod and the second connecting rod.

[0015] Preferably, the resilient switch is made of stainless steel.

[0016] This utility model also discloses a sample porcelain boat for connecting the sample porcelain boat connection structure described above, including a porcelain boat body for holding a sample, an extension section disposed on the porcelain boat body, and a snap-fit ​​hole disposed on the extension section that is locked to the receiving groove by the locking mechanism.

[0017] Preferably, the ceramic boat body and the extension section are detachably connected.

[0018] Preferably, the porcelain boat body is a corundum porcelain boat.

[0019] The present invention achieves the following technical advantages over the prior art:

[0020] By setting up a locking mechanism, the porcelain boat can be locked and disassembled simply by pressing the pressing cap. The sample porcelain boat can be pushed in and pulled out without the need for a porcelain boat bracket, which greatly improves the testing efficiency and reduces the cost of sample testing. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Appendix Figure 1 This is a schematic diagram of the sample porcelain boat connection structure and the overall structure of the sample porcelain boat when locked, as disclosed in the embodiments of this utility model.

[0023] Appendix Figure 2 This is a schematic diagram of the sample porcelain boat connection structure and the structure of the locking mechanism spring in the sample porcelain boat when it is not compressed, as disclosed in the embodiment of this utility model.

[0024] Appendix Figure 3 A schematic diagram of the sample porcelain boat connection structure and the spring compression structure of the locking mechanism in the sample porcelain boat as disclosed in the embodiments of this utility model;

[0025] Appendix Figure 4 This is a schematic diagram of the sample ceramic boat structure disclosed in the embodiments of this utility model;

[0026] Among them, 1. Porcelain boat body; 2. Extension section; 3. Locking mechanism; 4. Receiving groove; 5. Support plate; 6. Porcelain boat push rod; 7. Main shaft; 8. Press cap; 9. Elastic connecting rod; 10. Elastic switch; 11. Bar; 12. Spring; 13. Snap-fit ​​groove; 14. Snap-fit ​​hole. Detailed Implementation

[0027] 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.

[0028] The purpose of this invention is to provide a sample porcelain boat connection structure and a sample porcelain boat that can complete the pushing in and pulling out of the sample porcelain boat without the need for a porcelain boat bracket, thereby greatly improving the detection efficiency and reducing the cost of sample detection.

[0029] refer to Figures 1-3The sample porcelain boat connection structure disclosed in this utility model embodiment includes at least a porcelain boat push rod 6. The porcelain boat push rod 6 is provided with a receiving groove 4. The receiving groove 4 is used to connect with the extension section 2 provided on the porcelain boat body 1, so that the extension section 2 extends into the receiving groove 4. The receiving groove 4 is provided with a locking mechanism 3 for locking the porcelain boat body 1 in the receiving groove 4.

[0030] The locking mechanism 3 includes a housing mounted on the outer wall of the receiving groove 4. A pressing cap 8 is slidably mounted on the end of the housing away from the receiving groove 4. A main shaft 7 is mounted inside the housing and connected to the pressing cap 8. A partition 11 is mounted on the outer wall of the main shaft 7, and a spring 12 is sleeved on the outer wall of the main shaft 7, with the spring 12 connected to the end of the partition 11 away from the pressing cap 8. An elastic connecting rod 9 is mounted on the main shaft 7 between the partition 11 and the pressing cap 8. A snap-fit ​​groove 13 is mounted on the side wall of the housing for the elastic connecting rod 9 to enter and complete the snap-fit. An elastic switch 10 is mounted on the outer wall of the housing. When sample testing is performed, it is necessary to lock the sample ceramic boat and the ceramic boat push rod 6. By pressing the pressing cap 8, the pressing cap 8 drives the main shaft 7 to move towards the receiving groove 4. At this time, the spring 12 sleeved on the main shaft 7 is engaged. The sample boat is compressed between the partition 11 and the outer wall of the receiving groove 4. The elastic switch 10 moves towards the receiving groove 4 with the main shaft 7 and enters the locking groove 13, fixing the main shaft 7. The main shaft 7 locks the ceramic boat and the ceramic boat push rod 6 for sample testing. After the sample testing is completed, the ceramic boat push rod 6 is pulled out. The ceramic boat and the ceramic boat push rod 6 need to be disassembled. Press the elastic switch 10, and the elastic switch 10 enters the locking groove 13 and presses against the elastic connecting rod 9, pushing the elastic connecting rod 9 out of the locking groove 13. At this time, the main shaft 7 is reset under the action of the restoring force of the spring 12, separating the ceramic boat and the ceramic boat push rod 6. The ceramic boat is taken out with tweezers. By setting the locking mechanism 3, the sample ceramic boat can be pushed in and pulled out without the ceramic boat bracket, which greatly improves the testing efficiency and reduces the cost of sample testing.

[0031] refer to Figure 2 and Figure 3 In one embodiment, the outer shell is a cylindrical structure, and the outer diameter of the pressing cap 8 is smaller than the inner diameter of the inner wall of the outer shell. A guide groove is provided on the inner wall of the outer shell, and a slider that mates with the guide groove is provided on the outer wall of the pressing cap 8. The guide groove is a vertical groove. The guide groove on the inner wall of the outer shell mates with the slider on the outer wall of the pressing cap 8, so that the pressing cap 8 slides vertically along a predetermined path to prevent deviation or dislodgement. When the slider moves in the groove, it is constrained by the groove shape and is only allowed to move in one direction. The design that the outer diameter of the pressing cap 8 is smaller than the inner diameter of the outer shell ensures that there is a gap between the two, which facilitates assembly and sliding. At the same time, the slider provides frictional resistance after being embedded in the guide groove, stabilizing the movement trajectory.

[0032] refer to Figure 1 and Figure 2In one embodiment, the receiving groove 4 is a U-shaped groove, the extension section 2 of the porcelain boat extends into the opening of the U-shaped groove and is set between the two support plates 5. The U-shaped groove is provided with a through hole that matches the snap-fit ​​hole 14 provided on the extension section 2 of the porcelain boat body 1. The end of the main shaft 7 away from the pressing cap 8 extends into the through hole and snap-fit ​​hole 14 provided on the two support plates 5 at the same time, thus completing the locking of the porcelain boat body 1.

[0033] It should be noted that the two straight plates refer to the two parallel plates that form the receiving groove 4.

[0034] refer to Figure 1 and Figure 2 In one embodiment, one end of the elastic link 9 is fixedly connected to the outer wall of the main shaft 7, and the other end of the elastic link 9 slides along the inner wall of the housing under the drive of the main shaft 7. The elastic link 9 and the main shaft 7 are set at an acute angle to the extension direction of the pressing cap 8. The acute angle layout causes it to generate radial elastic deformation when it is pressed, and pushes the snap-fit ​​action after storing energy.

[0035] refer to Figure 1 and Figure 2 In one implementation, the elastic link 9 is a stainless steel link or a titanium alloy link.

[0036] refer to Figure 1 and Figure 2 In one embodiment, the elastic switch 10 includes a first connecting rod connected to the outer wall of the housing, a second connecting rod corresponding to the opening of the snap-fit ​​groove 13, and a third connecting rod for connecting the first connecting rod and the second connecting rod. When it is necessary to disassemble the ceramic boat, since the third connecting rod is not connected to the housing, the second connecting rod is pressed, and the second connecting rod drives the third connecting rod to pass into the snap-fit ​​groove 13, pushing the elastic connecting rod 9 out of the snap-fit ​​groove 13.

[0037] refer to Figure 1 and Figure 2 In one embodiment, the flexible switch 10 is made of stainless steel or titanium alloy.

[0038] refer to Figure 4 The present invention also discloses a sample porcelain boat, which includes at least a porcelain boat body 1 for holding samples. The end of the porcelain boat body 1 is provided with an extension section 2, and the extension section 2 is provided with a snap-fit ​​hole 14. The extension section 2 extends into the receiving groove 4, and the snap-fit ​​hole 14 is aligned with the through hole in the receiving groove 4. The main shaft 7 passes through the through hole and the snap-fit ​​hole 14 to complete the locking of the extension section 2 and the receiving groove 4.

[0039] refer to Figure 4 As one implementation method, the porcelain boat body 1 and the extension section 2 are detachably connected, which facilitates the disassembly of the porcelain boat body 1 and the extension section 2, and makes it easy to make improvements on existing porcelain boats without having to remake the porcelain boat body 1, thus saving costs.

[0040] It should be noted that the mating end of the porcelain boat body 1 and the extension section 2 is provided with a sliding groove. The extension section 2 is an extension rod. The mating end of the extension rod and the sliding groove is provided with a sliding plate. The sliding plate can be inserted into the sliding groove from the top. When the porcelain boat body 1 is pushed or pulled by the extension rod, the sliding plate will not come out of the sliding groove. The porcelain boat body 1 and the extension section 2 can also be directly fastened with screws.

[0041] refer to Figure 4 As one implementation method, the porcelain boat body 1 is a corundum porcelain boat, which can withstand a high temperature of 1600℃ for a long time, can withstand an extreme temperature of 1800℃ for a short time, and has good thermal shock resistance.

[0042] The sample ceramic boat connection structure and sample ceramic boat designed in this utility model have significantly improved efficiency. Previously, disassembling the entire ceramic boat push rod 6 using a screwdriver took approximately 5-10 minutes. Now, it only requires inserting one end of the ceramic boat into the groove at the end of the push rod using tweezers at the sample opening. The press-type ceramic boat fixing and disassembly device secures the boat, and disassembly is equally convenient after testing. No ceramic boat detachment has occurred during actual operation.

[0043] Any adaptive changes made according to actual needs are within the protection scope of this utility model.

[0044] It should be noted that, for those skilled in the art, it is obvious that this utility model is not limited to the details of the above exemplary embodiments, and that this utility model can be implemented in other specific forms without departing from the spirit or essential characteristics of this utility model. Therefore, the embodiments should be considered as exemplary and non-limiting in all respects, and the scope of this utility model is defined by the appended claims rather than the foregoing description. Therefore, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within the utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A sample ceramic boat connection structure, characterized in that, It includes a porcelain boat push rod, a receiving groove provided on the porcelain boat push rod for engaging with one end of the porcelain boat, and a locking mechanism provided on the receiving groove for locking and unlocking the porcelain boat; The locking mechanism includes a housing disposed on the outer wall of the receiving groove, a pressing cap slidably disposed on the end of the housing away from the receiving groove, a main shaft disposed inside the housing and connected to the pressing cap, a partition disposed on the outer wall of the main shaft, a spring whose end is connected to the end of the partition away from the pressing cap and sleeved on the main shaft, an elastic connecting rod disposed on the main shaft between the partition and the pressing cap, and a locking groove disposed on the side wall of the housing for the elastic connecting rod to enter and complete the locking. An elastic switch is disposed on the outer wall of the housing. When the elastic switch is pressed, the elastic switch passes into the locking groove and pushes the elastic connecting rod out of the locking groove.

2. The sample ceramic boat connection structure according to claim 1, characterized in that, The inner wall of the outer casing is provided with a guide groove, and the outer wall of the pressing cap is provided with a slider that cooperates with the guide groove.

3. The sample ceramic boat connection structure according to claim 1, characterized in that, The receiving groove is a U-shaped groove, one end of the porcelain boat extends into the opening of the U-shaped groove, and the U-shaped groove is provided with a through hole that mates with the porcelain boat. The end of the main shaft away from the pressing cap extends into the through hole to lock the porcelain boat.

4. The sample ceramic boat connection structure according to claim 1, characterized in that, The elastic connecting rod is set at an acute angle to the extension direction of the main shaft near the pressing cap.

5. The sample ceramic boat connection structure according to claim 1, characterized in that, The elastic connecting rod is made of stainless steel.

6. The sample ceramic boat connection structure according to claim 1, characterized in that, The elastic switch includes a first connecting rod connected to the housing, a second connecting rod corresponding to the opening of the snap-fit ​​groove, and a third connecting rod for connecting the first connecting rod and the second connecting rod.

7. The sample ceramic boat connection structure according to claim 1, characterized in that, The flexible switch is made of stainless steel.

8. A sample porcelain boat for connecting to the sample porcelain boat connection structure as described in any one of claims 1-7, characterized in that, It includes a porcelain boat body for holding samples, an extension section provided on the porcelain boat body, and a snap-fit ​​hole provided on the extension section that is locked to the receiving groove by the locking mechanism.

9. The sample porcelain boat according to claim 8, characterized in that, The porcelain boat body and the extension section are detachably connected.

10. The sample porcelain boat according to claim 8, characterized in that, The porcelain boat body is a corundum porcelain boat.

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