Sample inlet mechanism of air bag sample injector

Abstract

The utility model belongs to the technical field of air bag sample injectors, and discloses a sample injection port mechanism of an air bag sample injector, which comprises a machine body and sample injection ports, fastening mechanisms in one-to-one correspondence with the sample injection ports are arranged on the front side of the machine body, the sample injection port mechanism comprises two mounting frames, and the two mounting frames are fixedly connected to two sides of the surfaces of the sample injection ports respectively. When a person inserts an air bag to be communicated with a sample inlet, the connector of the air bag directly ejects the two U-shaped clamping blocks to move towards the outer side, the air bag can be smoothly inserted into the sample inlet, the two U-shaped clamping blocks tightly clamp the air bag under the elastic force action of the first compression spring, at the moment, the adjacent side faces of the two U-shaped clamping blocks extrude the connector of the air bag, and the air bag can be smoothly inserted into the sample inlet. The air bag is connected with the sample inlet, so that the connection stability between the air bag and the sample inlet is guaranteed, accidental falling is prevented, other redundant steps are not needed when the air bag is connected, operation is more convenient, and when the air bag needs to be detached, the air bag can be normally detached only by pressing the rear ends of the two connecting rods to be close to each other.

Description

Technical Field

[0001] The utility model belongs to the technical field of gas bag samplers, and particularly relates to a sampling port mechanism of a gas bag sampler. Background Technique

[0002] A gas bag sampler is a device that can quantitatively send the gas sample in the gas bag into the analysis equipment, effectively solving the problems of a large number of gas bag samples, heavy analysis tasks, and poor repeatability during manual operation of gas bag sampling in the laboratory. In addition, the gas bag sampler also avoids the possible health hazards of toxic gases to the operator.

[0003] According to the patent with the patent number CN220508875U, a non-methane total hydrocarbon gas bag automatic sampling device is disclosed, including a device body. The device body includes a sampler, and a sampling tube is arranged on the surface of the sampler. A display screen is arranged on the surface of the sampler; a protection mechanism is arranged on the surface of the sampler. Through the cooperation of the chute and the slider, the utility model can move the cover plate, achieving the effect of covering and canceling the cover of the surface of the display screen by the cover plate. By canceling the cover of the display screen by the cover plate, the sampler can be used and the display screen can be viewed. By covering the surface of the display screen by the cover plate, the display screen can be protected, avoiding the accumulation of dust on the display screen and preventing the display screen from being scratched due to accidental collision, etc., and ensuring the display effect of the sampling state and non-methane total hydrocarbon concentration on the display screen.

[0004] Although the above-mentioned disclosed device can further clamp the gas bag by rotating the screw, since two screws need to be rotated separately before the gas bag is connected to clamp the gas bag, and when the gas bag is removed, the screw needs to be rotated again, this increases additional operation steps. When there are too many gas bags, it is not convenient for personnel to use. Therefore, we provide a sampling port mechanism of a gas bag sampler to solve the above problems. Summary of the Utility Model

[0005] To solve the problems raised in the above background technique, the utility model provides a sampling port mechanism of a gas bag sampler.

[0006] To achieve the above object, the utility model provides the following technical solution: A sampling port mechanism of a gas bag sampler, including a machine body and a sampling port. A fastening mechanism corresponding to the sampling port one by one is arranged on the front surface of the machine body, which includes two mounting brackets. The two mounting brackets are respectively fixedly connected to both sides of the surface of the sampling port. A connecting rod is hinged to the inner wall of each mounting bracket. The front ends of the two connecting rods are fixedly connected with U-shaped clamping blocks, and the rear ends of the two connecting rods are fixedly connected with first compression springs, and the other ends of the first compression springs are fixedly connected to the surface of the sampling port.

[0007] In the above technical solution, preferably, a protection mechanism is provided on the front surface of the machine body, which includes two cross plates and a fixing plate. The fixing plate is fixedly connected to the front surface of the machine body. Baffles corresponding to the upper and lower groups of sample inlets are respectively fixedly connected to the two cross plates. Guide plates are fixedly connected to the back surfaces of the two cross plates. A guide rod is fixedly connected to the fixing plate. The two guide plates are elastically sleeved on the guide rod, and a limiting mechanism is provided between the two cross plates.

[0008] In the above technical solution, preferably, two opposite second compression springs are sleeved on the surface of the guide rod, and one end of each of the two adjacent second compression springs is fixedly connected to the fixing plate, and the other ends of the two second compression springs are respectively connected to the two guide plates.

[0009] In the above technical solution, preferably, the limiting mechanism includes two opposite clamping plates, the two clamping plates are respectively fixedly connected to the two cross plates, and the two clamping plates are arranged in a staggered manner.

[0010] In the above technical solution, preferably, a second lever is fixedly connected to one end of each of the two adjacent clamping plates, and the two second levers are arranged oppositely.

[0011] In the above technical solution, preferably, a first lever is fixedly connected to the rear end of each of the two connecting rods.

[0012] In the above technical solution, preferably, a plurality of barbs are fixedly connected to one adjacent side surface of each of the two U-shaped clamping blocks.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] 1. With the setting of the fastening mechanism in the present utility model, when a person inserts an air bag to connect with the sample inlet, the interface of the air bag can directly push open the two U-shaped clamping blocks and move outward, and then can be smoothly inserted into the sample inlet. Under the elastic action of the first compression spring, the two U-shaped clamping blocks firmly clamp the air bag. At this time, the adjacent side surfaces of the two U-shaped clamping blocks will squeeze the interface of the air bag, thereby ensuring the connection stability between the air bag and the sample inlet, preventing accidental detachment, and there is no need for other redundant steps when connecting the air bag, and the operation is more convenient. When it is necessary to remove the air bag, only need to press the rear ends of the two connecting rods to approach each other, and then the air bag can be normally removed.

[0015] 2. With the setting of the protection mechanism in the present utility model, when the machine body is not in use, only need to release the limit of the two cross plates, then the two cross plates can move away from each other, and the baffle is used to block and protect the sample inlet to prevent sundries from entering and causing blockage. When the machine body is in normal use, only need to move the two cross plates closer to each other, further make the two clamping plates contact each other, and finally be clamped and limited with each other, so that the baffle moves away from the sample inlet. Description of the Drawings

[0016] Figure 1 is a schematic structural view of the present utility model;

[0017] Figure 2 is a schematic structural view of the present utility model after removing the protection mechanism;

[0018] Figure 3 is a schematic structural view of the protection mechanism of the present utility model;

[0019] Figure 4 is the present utility model Figure 1 an enlarged schematic view of the structure at position A in;

[0020] Figure 5 is the present utility model Figure 2 an enlarged schematic view of the structure at position B in.

[0021] In the figure: 1, body; 2, U-shaped clamping block; 3, connecting rod; 4, first compression spring; 5, first shift lever; 6, cross plate; 7, baffle; 8, guide plate; 9, second compression spring; 10, fixing plate; 11, second shift lever; 12, guide rod; 13, clamping plate; 14, barbs; 15, mounting bracket; 16, sample inlet. Specific embodiments

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0023] Such as Figures 1 to 5As shown in the figure, the present utility model provides a sampling port mechanism for an air bag sampler, which includes a body 1 and a sampling port 16. A fastening mechanism corresponding to the sampling port 16 one by one is arranged on the front surface of the body 1. The fastening mechanism includes two mounting brackets 15. The mounting brackets 15 are U-shaped. The two mounting brackets 15 are respectively fixedly connected to both sides of the surface of the sampling port 16, so that the two mounting brackets 15 are arranged oppositely. A connecting rod 3 is hinged to the inner wall of each mounting bracket 15, and the two connecting rods 3 are arranged oppositely. U-shaped clamping blocks 2 are fixedly connected to the front ends of the two connecting rods 3. The front end of the U-shaped clamping block 2 is inclined outward. First compression springs 4 are fixedly connected to the rear ends of the two connecting rods 3, and the other ends of the first compression springs 4 are fixedly connected to the surface of the sampling port 16. Through the above structure, when a person inserts an air bag to connect with the sampling port 16, the interface of the air bag directly pushes open the two U-shaped clamping blocks 2 and moves outward, and then can be smoothly inserted into the sampling port 16. Under the elastic action of the first compression spring 4, the two U-shaped clamping blocks 2 firmly clamp the air bag. At this time, the adjacent side surfaces of the two U-shaped clamping blocks 2 will squeeze the interface of the air bag, so as to ensure the connection stability between the air bag and the sampling port 16, prevent accidental detachment, and there is no need for other extra steps when connecting the air bag, and the operation is more convenient. When it is necessary to remove the air bag, only need to press the rear ends of the two connecting rods 3 to approach each other, and the air bag can be normally removed.

[0024] As Figure 1 , Figure 3 and Figure 4 shown, a protection mechanism is arranged on the front surface of the body 1. The protection mechanism includes two cross plates 6 and a fixing plate 10. The fixing plate 10 is located between the two cross plates 6. The fixing plate 10 is fixedly connected to the front surface of the body 1. Baffles 7 corresponding to the upper and lower groups of sampling ports 16 are respectively fixedly connected to the two cross plates 6. Moving the cross plates 6 will drive each baffle 7 to move together. Guide plates 8 are fixedly connected to the back surfaces of the two cross plates 6. A guide rod 12 is fixedly connected to the fixing plate 10. The two guide plates 8 are elastically sleeved on the guide rod 12, and a limiting mechanism is arranged between the two cross plates 6. The limiting mechanism can be used to lock and fix the two cross plates 6 to prevent random movement. Through the above structure, when the body 1 is not in use, only need to release the limit of the two cross plates 6, and the two cross plates 6 can be separated from each other to shield and protect each sampling port 16, so as to shield and protect the sampling port 16 and prevent sundries from entering and blocking.

[0025] As Figure 3 and Figure 4 shown, two opposite second compression springs 9 are sleeved on the surface of the guide rod 12. The adjacent ends of the two second compression springs 9 are fixedly connected to the fixing plate 10, and the other ends of the two second compression springs 9 are respectively connected to the two guide plates 8. Through the arrangement of the second compression springs 9, when the two cross plates 6 move away from each other and the limit of the two cross plates 6 is released, the sampling port 16 can be automatically shielded.

[0026] As Figure 3 and Figure 4 shown, the limiting mechanism includes two opposite clamping plates 13, the two clamping plates 13 are respectively fixedly connected to the two cross plates 6, and the two clamping plates 13 are arranged staggeredly. When the machine body 1 is in normal use, only need to move the two cross plates 6 closer to each other, further make the two clamping plates 13 contact each other, and finally be clamped and limited to each other. When it is necessary to release the limit of the two cross plates 6, only need to pull the two clamping plates 13 apart to both sides respectively.

[0027] As Figure 3 and Figure 4 shown, a second lever 11 is fixedly connected to one end of each of the two adjacent clamping plates 13, and the two second levers 11 are arranged oppositely. Through the arrangement of the second lever 11, it is convenient for personnel to release the limit of the two cross plates 6.

[0028] As Figure 1 、 Figure 2 and Figure 5 shown, a first lever 5 is fixedly connected to the rear end of each of the two connecting rods 3. Through the arrangement of the first lever 5, it is convenient for personnel to press the two connecting rods 3.

[0029] As Figure 5 shown, a plurality of barbs 14 are fixedly connected to one side surface of each of the two adjacent U-shaped clamping blocks 2. Through the arrangement of the barbs 14, the connection tightness between the air bag and the sampling port 16 is strengthened, and the air bag is prevented from being pulled by an external force.

[0030] The working principle and usage process of the present utility model: When a person inserts the air bag to connect with the sampling port 16, the interface of the air bag directly pushes the two U-shaped clamping blocks 2 to move outward, and then it can be smoothly inserted into the sampling port 16. Under the elastic force of the first compression spring 4, the two U-shaped clamping blocks 2 firmly clamp the air bag. At this time, one side surface of the two adjacent U-shaped clamping blocks 2 will squeeze the interface of the air bag, and the barbs 14 can further strengthen the connection stability, preventing accidental detachment, which makes the connection of the air bag without other redundant steps and the operation more convenient. When it is necessary to remove the air bag, only need to press the rear ends of the two connecting rods 3 closer to each other, and then the air bag can be normally removed. When the machine body 1 is not in use, only need to release the limit of the two cross plates 6, then the two cross plates 6 will move away from each other, and the baffle 7 is used to shield and protect the sampling port 16 to prevent foreign objects from entering and causing blockage.

[0031] In the present utility model, unless otherwise clearly stipulated and defined, the terms "connection", "fixation", etc. shall be understood in a broad sense. For example, "fixation" may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. The content not described in detail in the specification belongs to the prior art well-known to those of ordinary skill in the art.

[0032] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. An injection port mechanism of an air bag injector, comprising a body (1) and an injection port (16), characterized in that: A fastening mechanism corresponding to the sample inlet (16) one by one is provided on the front of the body (1). It includes two mounting brackets (15). The two mounting brackets (15) are respectively fixedly connected to both sides of the surface of the sample inlet (16). A connecting rod (3) is hinged to the inner wall of each mounting bracket (15). A U-shaped clamping block (2) is fixedly connected to the front ends of the two connecting rods (3). A first compression spring (4) is fixedly connected to the rear ends of the two connecting rods (3), and the other end of the first compression spring (4) is fixedly connected to the surface of the sample inlet (16).

2. The injection port mechanism of an air bag injector according to claim 1, characterized in that: A protection mechanism is provided on the front of the body (1). It includes two cross plates (6) and a fixing plate (10). The fixing plate (10) is fixedly connected to the front of the body (1). Baffles (7) corresponding to the upper and lower groups of sample inlets (16) are respectively fixedly connected to the two cross plates (6). Guide plates (8) are fixedly connected to the backs of the two cross plates (6). A guide rod (12) is fixedly connected to the fixing plate (10). The two guide plates (8) are elastically sleeved on the guide rod (12), and a limiting mechanism is arranged between the two cross plates (6).

3. The sampling port mechanism of an airbag sampler according to claim 2, characterized in that: Two opposite second compression springs (9) are sleeved on the surface of the guide rod (12), and the adjacent ends of the two second compression springs (9) are both fixedly connected to the fixing plate (10). The other ends of the two second compression springs (9) are respectively connected to the two guide plates (8).

4. The sampling port mechanism of an airbag sampler according to claim 2, characterized in that: The limiting mechanism includes two opposite clamping plates (13). The two clamping plates (13) are respectively fixedly connected to the two cross plates (6), and the two clamping plates (13) are arranged in a staggered manner.

5. The injection port mechanism of an air bag injector according to claim 4, characterized in that: Second shift rods (11) are fixedly connected to the adjacent ends of the two clamping plates (13), and the two second shift rods (11) are arranged oppositely.

6. The inlet mechanism of an air bag sampler according to claim 1, characterized in that: First shift rods (5) are fixedly connected to the rear ends of the two connecting rods (3).

7. The injection port mechanism of an air bag injector according to claim 1, characterized in that: A number of barbs (14) are fixedly connected to the adjacent side surfaces of the two U-shaped clamping blocks (2).

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