Tube changing mechanism for portable detection device

Abstract

This invention relates to a tube-changing mechanism for a portable testing device, comprising: a portable testing device body, wherein the portable testing device body includes a housing and a tube seat disposed within the housing, the housing having a track groove, the end of the track groove being bent upward or downward along its length; and a tube-changing mechanism, wherein the tube-changing mechanism includes a movable component, a connecting component rotatably connected to the movable component, and a tube mounting seat rotatably connected to the connecting component, the movable component being covered on the housing, the side of the movable component being disposed within the track groove, the movable component being slidably connected to the track groove, and the connecting component and the tube mounting seat being disposed within the housing; when the movable component slides to the end of the track groove, the movable component can abut against the tube seat, a first angle can be formed between the movable component and the housing, the tube mounting seat can abut against the tube seat, a second angle can be formed between the tube mounting seat and the housing. The tube-changing mechanism of this invention has a semi-detachable structure, facilitating the installation or removal of the tube, and is simple and quick to operate.

Description

Technical Field

[0001] This invention relates to the field of material detection technology, and in particular to a tube-changing mechanism for a portable detection device. Background Technology

[0002] In daily production and life, many fields, such as food, medical, chemical, and security inspection, use testing equipment and devices, and these devices and devices basically use material tubes as their core components. As a tubular reaction element, the material tube is usually a test tube or capillary filled with reactants. During prolonged operation, the internal reactants are depleted, requiring frequent replacement. However, portable testing devices are small in size, and their parts are usually quite delicate, making tube replacement cumbersome. Slight carelessness can damage the portable testing mechanism. Therefore, if the structural design of the testing device is unreasonable, replacing the material tube will significantly reduce the efficiency and effectiveness of the testing device. Summary of the Invention

[0003] To address the aforementioned drawbacks of existing technologies, this invention provides a tube-changing mechanism for a portable testing device, comprising:

[0004] A portable testing device body, comprising a housing and a tube seat disposed within the housing, the housing having a track groove, the end of the track groove being bent upwards or downwards; and

[0005] The tube changing mechanism includes a movable component, a connecting component rotatably connected to the movable component, and a tube mounting seat rotatably connected to the connecting component. The movable component is covered on the housing, and its side is disposed in the track groove. The movable component is slidably connected to the track groove. The connecting component and the tube mounting seat are disposed within the housing. When the movable component slides to the end of the track groove, it can abut against the tube seat, and a first included angle can be formed between the movable component and the housing. The tube mounting seat can abut against the tube seat, and a second included angle can be formed between the tube mounting seat and the housing.

[0006] During normal use, the feed tube is inserted into the feed tube mounting seat, and the movable part covers the housing, sealing the housing. When the feed tube needs to be replaced, the operator slides the movable part backward. Due to the curvature at the end of the track groove, when the movable part reaches the end of the track groove, its front end is pressed downward, causing the movable part to abut against the tube seat. The tube seat limits the movement of the movable part, causing it to tilt upward, forming a first angle between the movable part and the housing. The movable part drives the connecting part to rotate, and simultaneously, the feed tube mounting seat tilts upward with the rotating connecting part, abutting against the tube seat. The tube seat limits the movement of the feed tube mounting seat, forming a second angle between the feed tube mounting seat and the housing. At this point, because the feed tube mounting seat is tilted upward, the operator can easily pull out the discarded feed tube and replace it with a new one. After replacement, the operator slides the movable part forward, the first and second angles disappear, and the feed tube mounting seat and feed tube move forward with the movable part, installing in the desired reaction position until the movable part completely covers the housing, sealing the housing.

[0007] According to one embodiment of this application, when the movable member slides to the end of the track groove, the front end of the movable member is pressed down, and the movable member abuts against the tube seat. The two sides of the tube seat play a limiting role on the movable member. A first included angle is formed between the movable member and the housing. The angle of the first included angle is 30 to 45°. At the same time, the material tube mounting seat abuts against the tube seat. The tube seat plays a limiting role on the material tube mounting seat. A second included angle is formed between the material tube mounting seat and the housing. The tube seat plays a limiting role on the material tube mounting seat. The angle of the second included angle is 30 to 45°.

[0008] According to one embodiment of this application, the tube mounting base includes a first plug and a second plug sleeved on the first plug. The inner sides of the first and second plugs are provided with tube inlets. The end of the second plug is provided with an opening that communicates with the tube inlet. The tube is inserted into the tube inlet through the opening at the end of the second plug. An elastic element and a connecting element are sequentially sleeved on the outer side of the first plug away from the tube inlet. One end of the elastic element extends into the interior of the connecting element and contacts the connecting element, while the other end of the elastic element contacts the first plug. The elastic element can be used to absorb assembly errors of the tube mounting base and ensure the airtightness of the tube mounting base.

[0009] According to one embodiment of this application, a material pipe retaining ring is also provided at the end of the material pipe inlet near the first plug, and a sealing ring is provided between the second plug and the material pipe retaining ring, with the inner diameter of the sealing ring forming the material pipe inlet.

[0010] According to one embodiment of this application, the elastic element is a spring.

[0011] According to one embodiment of this application, a sealing ring is further provided between the first plug and the second plug to ensure the airtightness between the first plug and the second plug.

[0012] According to one embodiment of this application, the sealing ring is a fluororubber O-ring.

[0013] According to one embodiment of this application, the end of the first plug is provided with an air hole, the diameter of which can be set to 0.5 to 2 mm, preferably 1 mm.

[0014] According to one embodiment of this application, a retaining ring is also provided on the first plug, and the retaining ring is provided on the end of the first plug near the connector.

[0015] According to one embodiment of this application, the outer side of the second plug is also provided with a short shaft, which contacts the tube seat line to ensure that the second plug can move linearly on the tube seat.

[0016] According to one embodiment of this application, the side of the track groove is also provided with a buckle groove, and an elastic body and a buckle connected to the elastic body are provided in the buckle groove. When the moving part is closed with the housing, the buckle abuts against the side of the moving part, and the buckle is used to lock the moving part. This structure is convenient and reliable.

[0017] According to one embodiment of this application, the elastomer is a spring.

[0018] The beneficial effects of this invention are as follows:

[0019] The tube-changing mechanism of the present invention is a semi-disassembly structure. It is only necessary to slide the moving part to the end of the track groove and press down the front end of the moving part to make the tube mounting seat or tube and the housing form an angle, which facilitates the installation or removal of the tube. The operation is simple and fast, which greatly reduces the time for changing the tube and also greatly improves the efficiency of the detection device and the detection efficiency.

[0020] Furthermore, the elastic element between the connector and the first plug can absorb assembly errors, allowing the tube mounting base to better fit the portable testing device; the sealing ring between the second plug and the tube retaining ring can adjust the tube insertion size. These features are not achievable in existing technologies. This design not only reduces product manufacturing costs but also improves the yield rate of the tube. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of a portable detection device according to an embodiment of the present invention;

[0022] Figure 2 A cross-sectional view of a tube-changing mechanism for a portable testing device according to an embodiment of the present invention;

[0023] Figure 3 This is a cross-sectional view of the portable testing device according to an embodiment of the present invention during the replacement of the feed tube;

[0024] Figure 4 This is a cross-sectional view of the portable testing device according to an embodiment of the present invention when the feed tube is being replaced.

[0025] Explanation of main component symbols: 1. Housing; 11. Track groove; 12. Elastic body; 13. Buckle; 2. Tube seat; 3. Moving part; 4. Connecting part; 5. Material tube mounting seat; 51. Second plug; 52. First plug; 53. Material tube retaining ring; 54. Elastic part; 55. Sealing ring; 56. Retaining ring; 57. Short shaft.

[0026] The above description of the main component symbols, together with the accompanying drawings and specific embodiments, provides a more detailed explanation of the present invention. Detailed Implementation

[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] It should be noted that the "front end" described in this invention refers to the position where the sliding shafts on both sides of the movable member reach the housing when the movable member is completely covered on the housing. Correspondingly, the "end end" refers to the position where the sliding shafts on both sides of the movable member reach the housing when the movable member is removed from the housing.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0030] Furthermore, in the embodiments of the present invention, terms such as "an embodiment according to this application" or "preferred" are used to indicate examples, illustrations, or descriptions. Any embodiment or design described as "an embodiment according to this application" or "preferred" in the embodiments of the present invention should not be construed as being more preferred or advantageous than other embodiments or design solutions. Specifically, the use of terms such as "an embodiment according to this application" or "preferred" is intended to present the relevant concepts in a specific manner.

[0031] An embodiment of the present invention provides a tube-changing mechanism 1 for a portable detection device, as shown in the attached drawing. Figure 1 As shown, it includes a portable detection device body, wherein the portable detection device body includes a housing 1 and a tube seat 2 disposed within the housing 1, the housing 1 is provided with a track groove 11, the end of the track groove 11 being bent upward or downward; and

[0032] Pipe replacement mechanism, such as Figure 2-3As shown, the tube changing mechanism includes a movable part 3, a connecting part 4 rotatably connected to the movable part 3, and a tube mounting seat 5 rotatably connected to the connecting part 4. The movable part 3 is covered on the housing 1, and the side of the movable part 3 is arranged in the track groove 11. The movable part 3 is slidably connected to the track groove 11. The connecting part 4 and the tube mounting seat 5 are arranged in the housing 1, and the tube mounting seat 5 is arranged in the tube seat 2. When the movable part 3 slides to the end of the track groove 11, the movable part 3 can abut against the tube seat 2, and a first included angle can be formed between the movable part 3 and the housing 1. The tube mounting seat 5 can abut against the tube seat 2, and a second included angle can be formed between the tube mounting seat 5 and the housing 1.

[0033] In this invention, the movable component 3 is slid to the end of the track groove 11. Pressing down the front end of the movable component 3 causes the tube mounting seat 5 or the tube to form an angle with the housing 1. This angle causes the tube mounting seat 5 to tilt upwards, facilitating easy insertion and removal of the tube from the seat. This makes tube replacement simple and quick, significantly reducing replacement time and greatly improving the efficiency of the testing device. Specifically, as... Figure 3 As shown, when the movable part 3 slides to the end of the track groove 11, the front end of the movable part 3 is pressed down, and the movable part 3 abuts against the tube seat 2. The two sides of the tube seat 2 limit the movable part 3. A first included angle is formed between the movable part 3 and the housing 1, with an angle of 30-45°. At the same time, the material tube mounting seat 5 abuts against the tube seat 2, and the tube seat 2 limits the material tube mounting seat 5. A second included angle is formed between the material tube mounting seat 5 and the housing 1, with the tube seat 2 limiting the material tube mounting seat 5. The angle of the second included angle is 30-45°. The first included angle and the second included angle can be the same or different, and there is no direct relationship between them. However, within the angle range of 30-45°, the material tube can be inserted into or removed from the material tube mounting seat 5 more quickly, accurately, and conveniently.

[0034] More specifically, sliding shafts are provided on both sides of the front end of the moving part 3. Since the track groove 11 is designed with an upward or downward curved structure at the end, when the moving part 3 slides to the end of the track groove 11, it can prevent the moving part 3 from continuing to slide backward, and the sliding shaft of the moving part 3 can slide into the curved structure at the end of the track groove 11 to ensure that the moving part 3 can abut against the tube seat 2.

[0035] More specifically, the connector 4 has shafts on both sides, and the tube mounting seat 5 is rotatably connected to the connector 4 through the shafts on both sides of the connector 4. When the sliding shaft of the moving part 3 slides into the curved structure of the end 11 of the track groove, the front end of the moving part 3 tilts down, and the connector 4 is driven to tilt down. Since the tube mounting seat 5 abuts against the tube seat 2, a second included angle can be formed between the tube mounting seat 5 and the housing 1.

[0036] To facilitate the removal or installation of the material tube, such as Figure 2As shown, the tube mounting base 5 includes a first plug 52 and a second plug 51 sleeved on the first plug 52. A tube inlet is provided inside the first plug 52 and the second plug 51. The end of the second plug 51 has an opening that communicates with the tube inlet. The tube is inserted into the tube inlet through the opening at the end of the second plug 51. An elastic element 54 and a connecting element 4 are sequentially sleeved on the outer side of the first plug 52 away from the tube inlet. One end of the elastic element 54 extends into the connecting element 4 and contacts it, while the other end contacts the first plug 52. The elastic element 54 can absorb assembly errors of the tube mounting base 5 and ensure the airtightness of the tube mounting base 5. Specifically, the elastic element 54 is a spring.

[0037] Preferably, a pipe retaining ring 53 is provided at the end of the pipe inlet near the first plug 52, and a sealing ring is provided between the second plug 51 and the pipe retaining ring 53. The inner diameter of the sealing ring forms the pipe inlet, and the pipe is inserted into the inner diameter of the sealing ring through the opening at the end of the second plug 51. Specifically, the sealing ring is a fluororubber O-ring. The pipe retaining ring 53 is threaded to the first plug 52. The fluororubber O-ring installed between the first plug 52 and the pipe retaining ring 53 deforms under the compression of the pipe retaining ring 53. When the pipe is inserted into the inner diameter of the sealing ring, i.e., the pipe inlet, it can ensure airtightness and ensure that the pipe can be clamped and pulled out from the main unit when changing pipes. In addition, since the inner diameter of the fluororubber O-ring is the pipe inlet of the pipe insertion into the pipe mounting base 5, the size of the inner diameter of the fluororubber O-ring and the length of the pipe inlet can be adjusted by adjusting the number of fluororubber O-rings, thereby changing the size of the pipe entering the pipe mounting base 5.

[0038] Preferably, a sealing ring 55 is further provided between the first plug 52 and the second plug 51 to ensure the airtightness between the first plug 52 and the second plug 51. Specifically, the sealing ring 55 is a fluororubber O-ring.

[0039] Preferably, the end of the first plug 52 is provided with an air hole, the diameter of which can be set to 0.5-2mm, more preferably, the diameter of which is set to 1mm. When the feed tube is inserted into the second plug 51, a closed air passage is formed between the first plug 52, the feed tube, and the tube seat 2. This design reduces structural design and cleverly utilizes the parts themselves to form a closed air passage, saving space and reducing design complexity. The reactant enters the feed tube through the air hole on the first plug 52 and reacts. Since the first plug 52 and the second plug 51 block the opening of the feed tube, the reactant only enters the feed tube and is discarded when the feed tube is replaced. It will not enter other parts of the portable detection device and the tube changing mechanism, and will not remain in the portable detection device, thus not affecting the subsequent detection results and ensuring the accuracy of the detection results.

[0040] Preferably, a retaining ring 56 is also fitted on the first plug 52, and the retaining ring 56 is fitted on the end of the first plug 52 near the connector 4.

[0041] Preferably, the outer side of the second plug 51 is also provided with a short shaft 57, which is in line contact with the tube seat 2, ensuring that the second plug 51 can move linearly on the tube seat 2, thereby enabling the material tube mounting seat 5 to move smoothly within the tube seat 2.

[0042] like Figure 4 As shown, the side of the track groove 11 is also provided with a buckle groove, and the buckle groove is provided with an elastic body 12 and a buckle 13 connected to the elastic body 12. The buckle 13 can abut against the side of the moving part 3 and is used to clamp the moving part 3. This structure is convenient and reliable.

[0043] Specifically, the elastic body 12 is a spring.

[0044] When it is necessary to replace the feed tube, the specific working method of this invention is as follows:

[0045] The operator first moves the latch 13 outwards. After the latch 13 no longer contacts the slider of the moving part 3, the moving part 3 is then slid backwards along the track groove 11. Because the end of the track groove 11 is curved, when the moving part 3 reaches the end of the track groove 11, the front end of the moving part 3 is pressed downwards, and the moving part 3 abuts against the tube seat 2. The tube seat 2 acts as a limit for the moving part 3, and the moving part 3 tilts upwards, forming a first angle between the moving part 3 and the housing 1. The moving part 3 drives the connecting part 4 to rotate, and at the same time, the material tube mounting seat 5 tilts upwards with the rotation of the connecting part 4, abutting against the tube seat 2. The tube seat 2 acts as a limit for the material tube mounting seat 5, and the material tube mounting seat 5 forms a second angle with the housing 1. At this time, because the material tube mounting seat 5 is tilted upwards, the operator can easily pull out the discarded material tube and replace it with a new one.

[0046] After replacement, the operator slides the moving part 3 forward, the first and second included angles disappear, and the material tube mounting base 5 and the material tube move forward with the moving part 3 and are installed in the position to be reacted until the moving part 3 completely covers the housing 1 and the housing 1 is closed. At this time, the material tube replacement is complete.

[0047] The tube replacement mechanism of the present invention is a semi-disassembly structure. Simply slide the moving part 3 to the end of the track groove 11 and press down the front end of the moving part 3 to make the tube mounting seat 5 or the tube form an angle with the housing 2, which facilitates the installation or removal of the tube. The operation is simple and fast, greatly reducing the time for replacing the tube, and also greatly improving the efficiency of the detection device and the detection efficiency.

[0048] Furthermore, the elastic element 54 provided between the connector 4 and the first plug 52 can absorb assembly errors, allowing the tube mounting base 5 to better fit the portable testing device; the sealing ring between the second plug 51 and the tube retaining ring 53 can adjust the tube insertion size. These features are not achievable in existing technologies. This design not only reduces product production costs but also improves the yield rate of the tube.

[0049] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. A tube-changing mechanism for a portable testing device, characterized in that, include: The portable testing device body includes a housing (1) and a tube seat (2) disposed within the housing (1). The housing (1) has a track groove (11), the end of which is bent upwards or downwards. The tube changing mechanism includes a moving part (3), a connecting part (4) rotatably connected to the moving part (3), and a tube mounting seat (5) rotatably connected to the connecting part (4). The moving part (3) is covered on the housing (1), and the side of the moving part (3) is set in the track groove (11). The moving part (3) is slidably connected to the track groove (11). The connecting part (4) and the tube mounting seat (5) are set in the housing (1). The tube mounting seat (5) is set in the tube seat (2). The connecting part (4) has shafts on both sides. The tube mounting seat (5) is rotatably connected to the connecting part (4) through the shafts on both sides of the connecting part (4). When the moving part (3) slides to the end of the track groove (11), the moving part (3) can abut against the tube seat (2). A first included angle can be formed between the moving part (3) and the housing (1). The tube mounting seat (5) can abut against the tube seat (2). A second included angle can be formed between the tube mounting seat (5) and the housing (1). The material pipe mounting base (5) includes a first plug (52) and a second plug (51) sleeved on the first plug (52). The first plug (52) and the second plug (51) are provided with a material pipe inlet on their inner sides. The end of the second plug (51) is provided with an opening that communicates with the material pipe inlet. An elastic element (54) and a connector (4) are sequentially sleeved on the outer side of the first plug (52) away from the material pipe inlet. One end of the elastic element (54) extends into the interior of the connector (4) and contacts the connector (4). The other end of the elastic element (54) contacts the first plug (52). A material pipe retaining ring (53) is provided at the end of the material pipe inlet near the first plug (52), and a sealing ring is provided between the second plug (51) and the material pipe retaining ring (53), with the inner diameter of the sealing ring forming the material pipe inlet.

2. The tube-changing mechanism for the portable testing device as described in claim 1, characterized in that, The angle of the first included angle is 30 to 45 degrees.

3. The tube-changing mechanism for the portable testing device as described in claim 1, characterized in that, The second included angle is 30 to 45 degrees.

4. The tube-changing mechanism for the portable testing device as described in claim 1, characterized in that, A sealing ring (55) is also provided between the first plug (52) and the second plug (51).

5. The tube-changing mechanism for the portable testing device as described in claim 1, characterized in that, The first plug (52) has an air hole at its end.

6. The tube-changing mechanism for the portable testing device as described in claim 1, characterized in that, A retaining ring (56) is also fitted on the first plug (52), and the retaining ring (56) is fitted on the end of the first plug (52) near the connector (4).

7. The tube-changing mechanism for the portable testing device as described in claim 1, characterized in that, The outer side of the second plug (51) is also provided with a short shaft (57), which is in line contact with the tube seat (2).

8. The tube-changing mechanism for the portable testing device as described in claim 1, characterized in that, The side of the track groove (11) is also provided with a buckle groove, and the buckle groove is provided with an elastic body (12) and a buckle (13) connected to the elastic body (12). The buckle (13) can abut against the side of the moving part (3).

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