Sampling device

Abstract

The utility model discloses a sampling device, which comprises a fixing frame, a sampling device, a sampling device, a sampling device, a sampling device and a sampling device, and a fixing component is arranged on the inner side of the fixing frame; a guide assembly is arranged in the middle of the inner side of the fixing frame and used for guiding the sampling tube; the fixing assembly comprises first pushing frames and second pushing frames, the first pushing frames are slidably connected to the two sides of the interior of the fixing frame, and the second pushing frames are slidably connected to the inner sides of the first pushing frames; the same ends of the two first push frames are fixedly connected with a first push plate. According to the sampling device provided by the utility model, through the structural matching design of the fixing frame, the fixing assembly and the guide assembly, the device can be fixed with a bottle opening to be sampled, so that a sampling tube can be guided and limited when being inserted, and the phenomena that the sampling tube is inclined and deviated and is in contact with a sampling bottle are reduced; and the device can be operated by one hand, and the other hand is liberated, so that other operations can be carried out in the sampling process.

Description

Technical Field

[0001] The utility model relates to the technical field of chemical engineering, in particular to a sampling device. Background Art

[0002] During chemical engineering experiments, it is often necessary to take chemical samples of chemical reagents, solutions, etc., and then send them to a precision laboratory for content measurement. The chemicals that are often tested are mainly liquid and solid. Liquid chemicals are sampled using a rubber dropper and then sent to a collection bottle. Solids are usually sampled using tweezers.

[0003] For example, a Chinese utility model patent (CN221238711 U) discloses a chemical engineering sampling device, which states: "By providing a support member, when using a sampling tube for sampling, the support member can be pulled apart so that the two clamping plates are clamped at the mouth of the medicine bottle, and under the pulling force of the elastic member, the clamping plates will be tightly clamped at the position of the bottle mouth, so that the support member is fixed at the bottle mouth. Subsequently, during sampling, the fixed support member can guide the movement of the sampling tube, which can effectively avoid the problem of inaccurate sampling due to hand shaking during sampling, thereby effectively improving the accuracy of sampling."

[0004] In summary, it can be seen that the following technical problems exist in the prior art: when using, it is necessary to use both hands to pull one end of the clamping plate to perform the fixing operation with the bottle mouth, and the method of using an airbag sleeve to fix the sampling tube has a large friction coefficient, which affects the removal and placement of the sampling tube. For this reason, the present application proposes a sampling device to solve the technical problems mentioned above and provide a new technical solution. Utility Model Content

[0005] Based on this, it is necessary to provide a sampling device to address the above technical problems. Through the structural coordination design of the fixing frame, fixing assembly, and guiding assembly, the device can be fixed to the bottle mouth to be sampled, so that the sampling tube can be guided and limited when it is inserted, reducing the phenomenon of the sampling tube tilting, offset, and contact with the sampling bottle; and the device can be operated with one hand, freeing the other hand, so that other operations can be performed during the sampling process.

[0006] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0007] A sampling device is used for sampling liquid in chemical engineering.

[0008] The sampling device specifically comprises:

[0009] A fixing frame, wherein a fixing assembly is provided on the inner side of the fixing frame for fixing the fixing frame and the bottle mouth; a guiding assembly is provided in the middle part of the inner side of the fixing frame for guiding the sampling tube;

[0010] The fixed assembly includes a push frame 1 and a push frame 2, wherein the push frame 1 is slidably connected to the positions on both sides of the interior of the fixed frame, and the push frame 2 is slidably connected to the inner side of the push frame 1; the same end of the two push frames 1 is fixedly connected to a push plate 1, and the other ends of the two push frames 1 are fixedly connected to a splint 1; the same end of the two push frames 2 and one end away from the push plate 1 is fixedly connected to a push plate 2, and the other ends of the two push frames 2 are fixedly connected to a splint 2;

[0011] The guide assembly includes a fixed block, which is fixedly connected to the middle part of the inner side of the fixed frame. The upper end of the fixed block is fixedly connected to the guide cylinder. Return springs are provided inside the fixed frame and at positions on both sides of the guide assembly. The return spring on one side of the guide assembly is connected to the first push plate at one end away from the guide assembly, and the return spring on the other side of the guide assembly is connected to the second push plate at one end away from the guide assembly.

[0012] As a preferred embodiment of the sampling device provided by the present invention, buckle grooves are provided at the lower ends of the first and second clamping plates and on the sides close to each other.

[0013] As a preferred embodiment of the sampling device provided by the present invention, the cross-sections of the push rack one and the push rack two are two symmetrical C-shaped arrangements, the upper and lower ends of the push rack one are in contact with the upper and lower ends of the inner wall of the fixed rack, and the upper and lower ends of the push rack two are in contact with the upper and lower ends of the inner wall of the push rack one.

[0014] As a preferred embodiment of the sampling device provided by the present invention, both ends of the fixed block and the side where push plate 1 and push plate 2 are close to each other are fixedly connected with protrusions, one end of the return spring is sleeved and connected with the protrusions set at both ends of the fixed block, and the other end of the return spring is sleeved and connected with the protrusions set on push plate 1 and push plate 2 respectively.

[0015] As a preferred embodiment of the sampling device provided by the present invention, a limiting spring is provided on the inner side of the guide tube, the lower end of the limiting spring is fixedly connected to the fixed block, and the upper end of the limiting spring is slidably connected to the guide tube. There are multiple limiting springs, and the multiple limiting springs are arranged in a ring array.

[0016] As a preferred embodiment of the sampling device provided by the present invention, the number of the limiting springs is at least three, a limiting groove is provided on the upper part of the guide cylinder and at a position opposite to the limiting spring, and the upper end of the limiting spring is slidably connected to the guide cylinder through the limiting groove.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] The sampling device provided by the utility model can be fixed to the bottle mouth to be sampled through the structural coordination design of the fixing frame, the fixing component and the guiding component, so that the sampling tube can be guided and limited when it is inserted, thereby reducing the phenomenon of the sampling tube tilting, deflecting and contacting with the sampling bottle; and the device can be operated with one hand, freeing the other hand, so that other operations can be performed during the sampling process.

[0019] The sampling device provided by the utility model, through the structural arrangement of the guide assembly, enables the device to squeeze the sampling tube through the limiting spring inside the guide cylinder to limit the sampling tube, and the contact surface between the limiting spring and the sampling tube is small, thereby reducing the friction between the limiting spring and the sampling tube. While achieving the guidance and limitation of the sampling tube, it also makes it easier to take and place the sampling tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the solutions in the present invention, a brief introduction will be given below to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1 A schematic diagram of the overall structure of the sampling device provided by the utility model;

[0022] Figure 2 This is a schematic diagram of the structure of the fixing assembly of the sampling device provided by the utility model;

[0023] Figure 3 This is a side view of the connection structure of the sampling device fixing frame, push frame 1, and push frame 2 provided by the utility model;

[0024] Figure 4 This is a structural diagram of the guide assembly of the sampling device provided by the utility model;

[0025] Figure 5 This is a structural diagram of the limiting spring of the sampling device provided by the utility model.

[0026] The markings in the figure are as follows:

[0027] 1. Fixed frame; 2. Fixed assembly; 3. Guide assembly; 4. Push frame 1; 5. Push frame 2; 6. Push plate 1; 7. Push plate 2; 8. Clamping plate 1; 9. Clamping plate 2; 10. Return spring; 11. Fixed block; 12. Guide cylinder; 13. Limiting spring; 14. Limiting slide. DETAILED DESCRIPTION

[0028] In order to help those skilled in the art better understand the present invention, the following will provide a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work should fall within the scope of protection of the present invention.

[0029] As in the background art, in order to fix the bottle mouth, two hands are required to pull the clamping plate at one end, and the sampling tube is fixed by an air bag sleeve, which has a large friction coefficient and affects the taking and placing of the sampling tube.

[0030] In order to solve this technical problem, the utility model provides a sampling device, which is used for sampling chemical engineering liquids.

[0031] Specifically, please refer to Figure 1 - Figure 4 , the sampling device specifically includes:

[0032] A fixing frame 1 is provided with a fixing assembly 2 on the inner side of the fixing frame 1 for fixing the fixing frame 1 to the bottle mouth; a guiding assembly 3 is provided in the middle of the inner side of the fixing frame 1 for guiding the sampling tube;

[0033] The fixed assembly 2 includes a push frame 1 4 and a push frame 2 5. Push frames 1 4 are slidably connected to the positions on both sides of the interior of the fixed frame 1, and push frame 2 5 is slidably connected to the inner side of the push frame 1 4; the same end of the two push frames 1 4 is fixedly connected to a push plate 1 6, and the other ends of the two push frames 1 4 are fixedly connected to a splint 1 8. The same end of the two push frames 2 5 and the end away from the push plate 1 6 is fixedly connected to a push plate 2 7, and the other ends of the two push frames 2 5 are fixedly connected to a splint 2 9;

[0034] The guide assembly 3 includes a fixed block 11, which is fixedly connected to the middle part of the inner side of the fixed frame 1. The upper end of the fixed block 11 is fixedly connected to a guide cylinder 12. Return springs 10 are provided inside the fixed frame 1 and at positions on both sides of the guide assembly 3. The return spring 10 on one side of the guide assembly 3 is connected to the push plate 1 6 at one end away from the guide assembly 3, and the return spring 10 on the other side of the guide assembly 3 is connected to the push plate 2 7 at one end away from the guide assembly 3.

[0035] The sampling device provided by the present invention, through the structural coordination design of the fixing frame 1, the fixing component 2, and the guiding component 3, enables the device to be fixed to the bottle mouth to be sampled, so that the sampling tube can be guided and limited when it is inserted, reducing the phenomenon of the sampling tube tilting, deflecting, and contacting with the sampling bottle; and the device can be operated with one hand, freeing the other hand, so that other operations can be performed during the sampling process.

[0036] In order to enable those skilled in the art to better understand the solution of the present invention, the technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0037] Example 1:

[0038] Please refer to Figure 1 - Figure 5 , a sampling device comprising:

[0039] A fixing frame 1 is provided with a fixing assembly 2 on the inner side of the fixing frame 1 for fixing the fixing frame 1 to the bottle mouth; a guiding assembly 3 is provided in the middle of the inner side of the fixing frame 1 for guiding the sampling tube;

[0040] Specifically, the fixing assembly 2 includes a push frame 4 and a push frame 2 5. Push frames 1 4 are slidably connected to the positions on both sides of the interior of the fixing frame 1, and push frame 2 5 is slidably connected to the inner side of the push frame 1; the same end of the two push frames 4 is fixedly connected to a push plate 1 6, and the other ends of the two push frames 4 are fixedly connected to a splint 1 8. The same end of the two push frames 2 5 and the end away from the push plate 1 6 are fixedly connected to a push plate 2 7, and the other ends of the two push frames 2 5 are fixedly connected to a splint 2 9; wherein, in order to achieve the connection and engagement with the bottle mouth, the lower ends of the splint 1 8 and the side close to each other are provided with buckle grooves.

[0041] Specifically, the guide assembly 3 includes a fixed block 11, which is fixedly connected to the middle part of the inner side of the fixed frame 1. The upper end of the fixed block 11 is fixedly connected to a guide cylinder 12. Return springs 10 are provided inside the fixed frame 1 and at positions on both sides of the guide assembly 3. The return spring 10 on one side of the guide assembly 3 is connected to the push plate 1 6 at one end away from the guide assembly 3, and the return spring 10 on the other side of the guide assembly 3 is connected to the push plate 2 7 at one end away from the guide assembly 3.

[0042] It can be seen that when in use, by pinching the push plate 1 6 and the push plate 2 7 close to each other with two fingers, the push frame 1 4 and the push frame 2 5 can respectively push the clamping plate 1 8 and the clamping plate 2 9 away from each other, keep the clamping plate 1 8 and the clamping plate 2 9 away from each other, move the bottle mouth to the position between the clamping plate 1 8 and the clamping plate 2 9, and slowly move the push plate 1 6 and the push plate 2 7 in the opposite direction, so that the push frame 1 4 and the push frame 2 5 respectively drive the clamping plate 1 8 and the clamping plate 2 9 to move closer to each other, thereby completing the fixation of the fixing frame 1 and the bottle mouth; wherein, when the push plate 1 6 and the push plate 2 7 are close to each other, the reset spring 10 is squeezed to accumulate force in the reset spring 10, so that when the push plate 1 6 and the push plate 2 7 are slowly released, the reset spring 10 releases the stored force to push the push plate 1 6 and the push plate 2 7 to reset.

[0043] Furthermore, a limiting spring 13 is disposed on the inner side of the guide tube 12. The lower end of the limiting spring 13 is fixedly connected to the fixed block 11, and the upper end of the limiting spring 13 is slidably connected to the guide tube 12. There are multiple limiting springs 13, and the multiple limiting springs 13 are arranged in a circular array. To ensure that the sampling tube can be guided and limited, the number of limiting springs 13 is at least three. A limiting groove 14 is provided on the upper portion of the guide tube 12, opposite the limiting spring 13. The upper end of the limiting spring 13 is slidably connected to the guide tube 12 via the limiting groove 14.

[0044] It can be seen that after the fixing frame 1 is fixed to the bottle mouth, the sampling tube is inserted into the guide cylinder 12, and the sampling tube is limited by the guide cylinder 12 to reduce the inclination angle of the sampling tube, and then the sampling tube is extended into the bottle through the fixing block 11 and the bottle mouth to carry out sampling; when the sampling tube is inserted into the guide cylinder 12, the sampling tube is squeezed by the limiting spring 13 inside the guide cylinder 12 to limit the sampling tube, and the contact surface between the limiting spring 13 and the sampling tube is small, thereby reducing the friction between the limiting spring 13 and the sampling tube, while achieving the guidance and limitation of the sampling tube, it also makes it more convenient to take and put the sampling tube.

[0045] Example 2:

[0046] The sampling device provided in Example 1 is further optimized, specifically, as Figure 3 As shown, the cross sections of push rack 1 4 and push rack 2 5 are two symmetrical C-shaped arrangements, the upper and lower ends of push rack 1 4 are in contact with the upper and lower ends of the inner wall of fixed rack 1 , and the upper and lower ends of push rack 2 5 are in contact with the upper and lower ends of the inner wall of push rack 1 4 .

[0047] Through the above structural design, by the fit between push frame 1 4 and fixed frame 1 , and the fit between push frame 2 5 and push frame 1 4 , the shaking of push frame 1 4 and push frame 2 5 during movement can be effectively reduced, and the movement deviation phenomenon of push frame 1 4 and push frame 2 5 can also be reduced.

[0048] Example 3:

[0049] The sampling device provided in Example 1 is further optimized, specifically, as Figure 2 and Figure 4 As shown, both ends of the fixed block 11 and the side where the push plate 1 6 and the push plate 2 7 are close to each other are fixedly connected with protrusions, one end of the return spring 10 is sleeved and connected with the protrusions set at both ends of the fixed block 11, and the other end of the return spring 10 is sleeved and connected with the protrusions set on the push plate 1 6 and the push plate 2 7 respectively.

[0050] Through the above structural design, the end of the return spring 10 can be limited by the protrusion to prevent the return spring 10 from accidentally popping out during the compression process.

Claims

1. A sampling device, characterized in that: include: A fixing frame (1), wherein a fixing assembly (2) is provided on the inner side of the fixing frame (1) for fixing the fixing frame (1) and the bottle mouth; a guiding assembly (3) is provided in the middle part of the inner side of the fixing frame (1) for guiding the sampling tube; The fixed assembly (2) includes a push frame 1 (4) and a push frame 2 (5). The positions on both sides of the interior of the fixed frame (1) are slidably connected with the push frame 1 (4), and the inner side of the push frame 1 (4) is slidably connected with the push frame 2 (5); the same end of the two push frames 1 (4) is fixedly connected with a push plate 1 (6), and the other end of the two push frames 1 (4) is fixedly connected with a clamping plate 1 (8); the same end of the two push frames 2 (5) and the end away from the push plate 1 (6) is fixedly connected with a push plate 2 (7), and the other end of the two push frames 2 (5) is fixedly connected with a clamping plate 2 (9); The guide assembly (3) includes a fixed block (11), the fixed block (11) is fixedly connected to the middle part of the inner side of the fixed frame (1), the upper end of the fixed block (11) is fixedly connected to the guide cylinder (12), and reset springs (10) are provided inside the fixed frame (1) and at positions on both sides of the guide assembly (3). The reset spring (10) on one side of the guide assembly (3) and the end away from the guide assembly (3) are connected to the push plate 1 (6), and the reset spring (10) on the other side of the guide assembly (3) and the end away from the guide assembly (3) are connected to the push plate 2 (7).

2. The sampling device according to claim 1, characterized in that Buckle grooves are provided at the lower ends of the first clamping plate (8) and the second clamping plate (9) and at one side close to each other.

3. The sampling device according to claim 1, characterized in that The cross sections of the push frame 1 (4) and the push frame 2 (5) are arranged in two symmetrical C shapes, the upper and lower ends of the push frame 1 (4) are fitted with the upper and lower ends of the inner wall of the fixed frame (1), and the upper and lower ends of the push frame 2 (5) are fitted with the upper and lower ends of the inner wall of the push frame 1 (4).

4. The sampling device according to claim 1, characterized in that Both ends of the fixed block (11) and the side where the push plate 1 (6) and the push plate 2 (7) are close to each other are fixedly connected with protrusions, one end of the return spring (10) is sleeve-connected with the protrusions set at both ends of the fixed block (11), and the other end of the return spring (10) is sleeve-connected with the protrusions set on the push plate 1 (6) and the push plate 2 (7).

5. The sampling device according to claim 1, characterized in that A limiting spring (13) is provided on the inner side of the guide cylinder (12), the lower end of the limiting spring (13) is fixedly connected to the fixed block (11), and the upper end of the limiting spring (13) is slidably connected to the guide cylinder (12), and the number of the limiting springs (13) is multiple, and the multiple limiting springs (13) are arranged in a ring array.

6. The sampling device according to claim 5, characterized in that The number of the limiting spring pieces (13) is at least three, a limiting sliding groove (14) is provided on the upper part of the guide cylinder (12) and at a position opposite to the limiting spring pieces (13), and the upper end of the limiting spring piece (13) is slidably connected to the guide cylinder (12) through the limiting sliding groove (14).

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