A convenient device and method for detecting dimethylpropylenediamine concentration

Abstract

The present invention relates to a convenient-to-use dimethylpropylenediamine concentration detection device and method, and relates to detection-related fields. The convenient-to-use dimethylpropylenediamine concentration detection device comprises a detection device and a support plate fixed on one side of the detection device, a protection box, the protection box is fixed on the support plate, a sample delivery port is provided on one side of the protection box, a protection box door is slidably installed at the sample delivery port, and a feeding table is slidably installed on the support plate along the width direction of the support plate. A sample delivery component is installed on the feeding table. When the protection box door is opened, it moves through a linkage component to make the slide move toward the protection box door. The pressure cylinder is located above the storage tank through the meshing of a second rack plate and a second gear. The operation is more convenient, and the protection box and the protection box door can ensure that the extraction and detection of detection samples will not be affected by the virtual current environment, thereby affecting the detection data.

Description

Technical Field

[0001] The invention relates to detection-related fields, and in particular to a convenient-to-use dimethylpropylenediamine concentration detection device and method. Background Art

[0002] Dimethylpropylenediamine is a chemical substance. In some scenarios, it is necessary to sample and test the concentration of dimethylpropylenediamine to cope with different usage scenarios;

[0003] A dimethylpropylenediamine concentration analysis device was disclosed after searching, application number: CN212410526U. The device uses a needle-like structure to extract samples and then transports them to a designated detection position. The device has the following shortcomings:

[0004] This sampling method first requires the sampling piece to be accurately placed in the container, and then a negative pressure state is generated inside the sampling piece by operating the device. Under the action of the negative pressure, the sample will be sucked into the sampling piece. The whole sampling process is relatively complicated.

[0005] It mainly includes the following steps: first, drive the sampling piece to rise to the top of the container, then slowly descend to the predetermined position, then use the structure to generate negative pressure inside the sampling piece, and extract the test sample, then the sampling piece rises again, transfers the extracted sample to the designated test position, and finally discharges the test sample after the sample reaches the designated position.

[0006] Conventional testing equipment needs to deliver the sample to a designated location before the testing equipment works to test it, but this device does not have a structure for delivering the test sample.

[0007] The device does not have relevant protective measures or structures and may be affected by the current environment during sampling and testing, thereby affecting the test data. Summary of the invention

[0008] The object of the present invention is to provide a convenient device and method for detecting the concentration of dimethylpropylenediamine to solve the problems raised in the above background technology.

[0009] To achieve the above object, the present invention provides the following technical solutions:

[0010] A convenient dimethylpropylenediamine concentration detection device comprising:

[0011] A testing device and a support plate fixed to one side of the testing device;

[0012] A protection box, the protection box is fixed on the support plate, one side of the protection box is provided with a sample delivery port, and a protection box door is slidably installed at the sample delivery port;

[0013] A feeding table, which is slidably mounted on the support plate along the width direction of the support plate, a sample feeding assembly is mounted on the feeding table, and the feeding table is also connected to the protective box door through a linkage assembly;

[0014] A support seat, the support seat is rotatably mounted on the feeding table, a receiving plate is vertically and slidably mounted on one side of the support seat, a sampling assembly is mounted on the receiving plate, the sampling assembly cooperates with the sample feeding assembly, a second gear is coaxially fixed on the rotating shaft of the support seat, the second gear is meshed with a second rack plate fixed on the support plate, a guide rod that is slidably matched with the feeding table is also fixed on the support plate, a first spring fixed to the feeding table is sleeved on the guide rod, and the first spring is fixed to the guide rod away from the feeding table.

[0015] A positioning block and a positioning plate, wherein the positioning block and the positioning plate are both fixed to the side ends of the support plate, and a collecting box is detachably mounted on the positioning block.

[0016] As a further solution of the present invention: the sample feeding assembly includes a slide table which is flip-mounted on the feeding table, and transmission rollers are rotatably mounted on both ends of the slide table, and the two transmission rollers are connected by a conveyor belt;

[0017] A first gear is coaxially fixed to one end of a transmission roller away from the detection device and facing the protective box door, and the first gear is meshed with a first rack plate fixed on the feeding platform;

[0018] A plurality of support shafts rollingly matched with the conveyor belt are rotatably mounted on the slide, and the support shafts are located inside the conveyor belt;

[0019] A second electric push rod is fixed to the bottom of the slide, and a movable rod of the second electric push rod is fixed to the bottom of the slide.

[0020] As a further solution of the present invention: the detection device is provided with a notch for placing samples on one side of the support plate, a detection device box door is vertically and slidably installed at the notch, a transmission rod is rotatably installed on the detection device box door, and an arc-shaped guide rod penetrating the transmission rod and slidingly cooperating with the transmission rod is also fixed on the detection device box door, and a third spring is sleeved on the arc-shaped guide rod;

[0021] A connecting shaft is fixed on the side of the transmission rod facing the slide, and the connecting shaft cooperates with a connecting groove provided on the slide.

[0022] As a further solution of the present invention: the linkage assembly includes a linkage block arranged at the bottom of the feeding table and integrally formed with the feeding table, the linkage block is connected to the protective box door through a traction rope, and a plurality of first guide wheels and a second guide wheel for guiding and limiting the traction rope are rotatably installed on the support plate.

[0023] As a further solution of the present invention: the sampling assembly includes a piston cylinder and a pressure cylinder fixed on the receiving plate, the pressure cylinder and the piston cylinder are connected through a delivery pipe, and a follower negative pressure assembly is installed on the piston cylinder;

[0024] Wherein, one end of the delivery pipe is connected to the top of the pressure cylinder and the other end is connected to the bottom of the piston cylinder;

[0025] The support seat is provided with a lifting assembly for driving the receiving plate to move upright.

[0026] As a further solution of the present invention: the follower negative pressure assembly comprises a piston sealingly and slidably mounted in the piston cylinder, a U-shaped transmission rod is coaxially fixed on the piston, and the U-shaped transmission rod passes through the receiving plate and is slidably connected to the receiving plate;

[0027] A blocking rod is sealingly and slidably installed in the pressure cylinder, a sealing head is coaxially fixed to the end of the blocking rod, a second spring is sleeved on the outer side of the blocking rod, one end of the second spring is fixed to the top of the pressure cylinder and the other end is fixed to the blocking rod;

[0028] A transverse plate is fixed on the support seat, and a second electromagnet matched with the blocking rod is fixed on the end of the transverse plate.

[0029] As a further solution of the present invention: a first electromagnet is fixed on the receiving plate, a movable shaft is slidably mounted on the first electromagnet toward one side of the U-shaped transmission rod, the movable shaft is slidably matched with the limiting holes equidistantly arranged on the U-shaped transmission rod, and a support block for providing a supporting force to the movable shaft is also fixed on the receiving plate;

[0030] The feeding platform is also provided with a deformation plate matched with the U-shaped transmission rod.

[0031] As a further solution of the present invention: the lifting assembly includes a screw rod rotatably mounted on the support seat, the screw rod is sleeved with a threaded sleeve threadedly matched with the screw rod, the threaded sleeve passes through the receiving plate and is fixed to the receiving plate;

[0032] A motor is fixed at the bottom of the support seat, and the output shaft of the motor is coaxially fixed with the lead screw.

[0033] The present invention also provides a convenient method for detecting the concentration of dimethylpropylenediamine, wherein the convenient method for detecting the concentration of dimethylpropylenediamine adopts the convenient device for detecting the concentration of dimethylpropylenediamine, and comprises the following steps:

[0034] Step 1: The protective box door is driven to rise by the first electric push rod, so as to drive the feeding platform to move toward the protective box door through the linkage component, and the sampling component is located directly above the positioning plate;

[0035] Step 2: Open the storage tank and place it at the center of the positioning plate, place the tank cover on the collection box, and then use the sampling assembly to absorb the test sample in the storage tank, and then drive the feeding table to reset by lowering the protective box door, and put the test sample on the sample feeding assembly through the sampling assembly, so as to drive the test sample to move into the testing equipment for testing through the sample feeding assembly;

[0036] Step 3: Determine the concentration and other parameters of the test sample through the test analysis of the test equipment.

[0037] Compared with the prior art, the present invention has the following beneficial effects: the present invention can generate negative pressure in the process of descent through the extraction structure, and release the seal of the pressure cylinder after moving to the end of the stroke, so that the detection solution can be quickly extracted into the pressure cylinder;

[0038] Secondly, the present invention is different from the prior art in that the prior art is to drive the extraction member to move above the container by driving the related structure alone, while the present application is to move the linkage assembly when the protection box door is opened, so that the slide moves toward the protection box door, and the pressure cylinder is located above the storage tank through the meshing of the second rack plate and the second gear, which is more convenient to operate, and the protection box and the protection box door can ensure that the extraction and detection of the test sample will not be affected by the virtual current environment, thereby affecting the test data;

[0039] The present invention can deliver the extracted test samples to the test equipment through the sample delivery component, and the test equipment box door located at the sample delivery port of the test equipment can be opened during sample delivery and correspondingly closed after the test is completed, thereby achieving relatively high efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 This is a schematic diagram of the overall structure of a dimethylpropylenediamine concentration detection device for easy use.

[0041] Figure 2 for Figure 1 Schematic diagram of the structure inside the protective box.

[0042] Figure 3 for Figure 2 Schematic diagram of the structure in another direction.

[0043] Figure 4 This is a schematic diagram of the structure on the support plate in the dimethylpropylenediamine concentration detection device for easy use.

[0044] Figure 5 This is a schematic diagram of the structure of the positioning block and positioning disk in the dimethylpropylenediamine concentration detection device for easy use.

[0045] Figure 6 A schematic diagram of the structure of the linkage assembly of the dimethylpropylenediamine concentration detection device for easy use.

[0046] Figure 7 for Figure 6 Enlarged view of point A in the middle.

[0047] Figure 8 This is a schematic diagram of the structure of the sample delivery component in the dimethylpropylenediamine concentration detection device for easy use.

[0048] Fig. 9 for Figure 8 Enlarged view of point B in the middle.

[0049] Fig.10 for Figure 8 Schematic diagram of the structure in another direction.

[0050] Fig.11 A schematic diagram of the positions of the guide rod and the first spring in the dimethylpropylenediamine concentration detection device for ease of use.

[0051] Fig.12 A schematic diagram of the structure of the sampling component of the dimethylpropylenediamine concentration detection device for easy use.

[0052] Fig.13 for Fig.12 Schematic diagram of the structure in another direction.

[0053] Fig.14 for Fig.13 Enlarged view of point C in the middle.

[0054] Fig.15 A schematic diagram of the structure of the pressure cylinder and piston cylinder in the dimethylpropylenediamine concentration detection device for easy use.

[0055] Fig.16 for Fig.15 Enlarged view of point D in the middle.

[0056] Fig.17 A schematic diagram of the structure of the connecting shaft and the connecting groove in the dimethylpropylenediamine concentration detection device for easy use.

[0057] In the figure: 1, support plate; 2, protection box; 3, protection box door; 4, detection equipment; 5, data processing equipment; 6, support seat; 7, feeding table; 701, linkage block; 8, detection equipment box door; 9, conveyor belt; 10, transmission rod; 11, slide; 12, positioning block; 13, positioning plate; 14, piston cylinder; 15, pressure cylinder; 16, storage tank; 1601, tank cover; 17, collection box; 18, first electric push rod; 19, through groove; 20, traction rope; 21, first guide wheel; 2101, second guide wheel; 22, guide rod; 23, first spring; 24, Forming a switch; 25, detection disk; 26, first rack plate; 27, first gear; 28, transmission roller; 29, second electric push rod; 30, support shaft; 31, second gear; 32, second rack plate; 33, threaded sleeve; 34, U-shaped transmission rod; 3401, movable groove; 35, delivery pipe; 36, first electromagnet; 37, movable shaft; 38, limit hole; 39, support block; 40, second spring; 41, blocking rod; 42, arc-shaped guide rod; 43, third spring; 44, connecting shaft; 45, connecting groove; 46, piston; 47, receiving plate; 48, screw rod. DETAILED DESCRIPTION

[0058] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments 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 ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0059] In addition, when an element in the present invention is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only embodiment.

[0060] For example, see Figures 1 to 17 A convenient dimethylpropylenediamine concentration detection device includes a detection device 4 and a support plate 1 fixed to one side of the detection device 4, and also includes a protection box 2, the protection box 2 is fixed to the support plate 1, and one side of the protection box 2 has a sample delivery port, where a protection box door 3 is slidably installed;

[0061] A feeding table 7 is slidably mounted on the support plate 1 along the width direction of the support plate 1, a sample feeding assembly is mounted on the feeding table 7, and the feeding table 7 is also connected to the protective box door 3 through a linkage assembly;

[0062] A support seat 6 is rotatably mounted on the feeding platform 7, and a receiving plate 47 is vertically and slidably mounted on one side of the support seat 6. A sampling assembly is mounted on the receiving plate 47, and the sampling assembly cooperates with the sample feeding assembly. A second gear 31 is coaxially fixed on the rotating shaft of the support seat 6, and the second gear 31 is meshed with a second rack plate 32 fixed on the support plate 1. A guide rod 22 that slidably cooperates with the feeding platform 7 is also fixed on the support plate 1, and a first spring 23 fixed to the feeding platform 7 is sleeved on the guide rod 22, and the first spring 23 is fixed to the guide rod 22 away from the side of the feeding platform 7;

[0063] A positioning block 12 and a positioning plate 13 are fixed to the side end of the support plate 1 , and a collecting box 17 is detachably mounted on the positioning block 12 .

[0064] In the embodiment of the present invention, the test sample is stored in the storage tank 16, and the positioning plate 13 is used to position the positioning plate 13 on the support plate 1, so that the position of the storage tank 16 is determined, and the collection box 17 is used to store the tank cover 1601. Because a part of the sample will be attached to the tank cover 1601 of the storage tank 16, in order to ensure the hygiene of the support plate 1 and the inside of the protective box 2, the tank cover 1601 is removed and placed on the collection box 17, and the dripped part of the sample can be collected by the collection box 17;

[0065] After the protection box door 3 is opened, the feeding platform 7 is driven to move horizontally toward the protection box door 3 through the linkage assembly. When the feeding platform 7 moves toward the protection box door 3, the support seat 6 is driven to follow the movement. When the support seat 6 moves, it rotates 180° due to the meshing of the second gear 31 and the second rack plate 32, and the corresponding receiving plate 47 follows the rotation, so that the sampling assembly on the receiving plate 47 is directly above the storage tank 16, and then the test sample in the storage tank 16 is taken out through the sampling assembly;

[0066] When the feeding platform 7 moves toward the protection box door 3, the first spring 23 is also pulled up, so that the first spring 23 reserves elastic potential energy. When the protection box door 3 is closed, the feeding platform 7 is reset by releasing the elastic potential energy of the first spring 23. Correspondingly, when the feeding platform 7 reciprocates, the engagement of the second gear 31 and the second rack plate 32 causes the support seat 6 to rotate in the opposite direction, so that the sampling assembly is above the sample delivery assembly, and the test sample is placed in the test tray 25 located on the sample delivery assembly.

[0067] Then the sample delivery component works to push the test tray 25 into the testing device 4 to test the test samples in the test tray 25 .

[0068] The sample feeding assembly includes a slide 11 which is flip-mounted on the feeding table 7, and transmission rollers 28 are rotatably mounted at both ends of the slide 11, and the two transmission rollers 28 are connected by a conveyor belt 9;

[0069] A first gear 27 is coaxially fixed to one end of a transmission roller 28 away from the detection device 4 and facing the protection box door 3, and the first gear 27 is meshed with a first rack plate 26 fixed on the feeding platform 7;

[0070] A plurality of support shafts 30 that are rotatably mounted on the slide 11 and are in rolling cooperation with the conveyor belt 9, and the support shafts 30 are located inside the conveyor belt 9;

[0071] The second electric push rod 29 is fixed to the bottom of the slide 11 , and the movable rod of the second electric push rod 29 is fixed to the bottom of the slide 11 .

[0072] In the embodiment of the present invention, a through slot 19 is provided on the slide 11, a connecting block is fixed at the bottom of the slide 11, the connecting block slides in the through slot 19, the movable rod of the second electric push rod 29 is fixed to the connecting block, and when the second electric push rod 29 works, the connecting block is pushed to drive the slide 11 to move toward the detection device 4;

[0073] When the slide 11 moves toward the detection device 4, the transmission roller 28, the conveyor belt 9, the first gear 27, the support shaft 30, and the detection disk 25 are driven to move toward the detection device 4 as a whole. When the first gear 27 moves, due to the meshing rotation with the first rack plate 26, the transmission roller 28 is driven to rotate when the first gear 27 rotates, and then the conveyor belt 9 is conveyed by the rotation of the transmission roller 28, so that the detection disk 25 on the conveyor belt 9 is conveyed toward the detection device 4;

[0074] When the slide 11 moves to the end of the stroke, it will partially extend into the detection device 4, and at the same time, the detection plate 25 is also transported from the side of the conveyor belt 9 away from the detection device 4 to the other end, so that the detection plate 25 is in the detection device 4;

[0075] The support shaft 30 is used to support the detection tray 25, so that the detection tray 25 is more stable during transportation and the sample is never spilled to the outside of the detection tray 25 during transportation.

[0076] The detection device 4 is provided with a notch for placing samples on one side facing the support plate 1, where a detection device box door 8 is vertically and slidably installed, a transmission rod 10 is rotatably installed on the detection device box door 8, and an arc-shaped guide rod 42 penetrating the transmission rod 10 and slidingly cooperating with the transmission rod 10 is also fixed on the detection device box door 8, and a third spring 43 is sleeved on the arc-shaped guide rod 42;

[0077] A connecting shaft 44 is fixed to the side of the transmission rod 10 facing the slide 11 , and the connecting shaft 44 cooperates with a connecting groove 45 provided on the slide 11 .

[0078] In the embodiment of the present invention, when the slide 11 moves toward the protective box door 3, the connection groove 45 is disengaged from the connection shaft 44, and when the slide 11 moves back and forth, the connection shaft 44 is inserted into the connection groove 45, so that the slide 11 and the transmission rod 10 are rotationally connected;

[0079] When the slide 11 moves toward the detection device 4, the transmission rod 10 pushes the detection device box door 8 to rise vertically, and vice versa, the detection device box door 8 is driven to fall vertically;

[0080] The function of the arc-shaped guide rod 42 and the third spring 43 is to support the transmission rod 10 through the normal supporting force of the third spring 43, so that the transmission rod 10 is maintained at a specified angle, so that the connecting groove 45 and the connecting shaft 44 are smoothly aligned, and when the detection device box door 8 is pushed up by the transmission rod 10, the transmission rod 10 will flip, and the third spring 43 will be compressed when the transmission rod 10 flips, and when the slide 11 reciprocates to the initial position, the elastic potential energy of the third spring 43 when compressed can be released to drive the transmission rod 10 back to the specified angle;

[0081] Among them, this embodiment is used to ensure the cleanliness of the detection equipment 4. When the protection box door 3 is opened, the detection equipment box door 8 is in a closed state, and when the detection equipment box door 8 is opened, the protection box door 3 is in a closed state.

[0082] The linkage assembly includes a linkage block 701 which is arranged at the bottom of the feeding platform 7 and is integrally formed with the feeding platform 7. The linkage block 701 is connected to the protective box door 3 through a traction rope 20. A plurality of first guide wheels 21 and a second guide wheel 2101 for guiding and limiting the traction rope 20 are rotatably installed on the support plate 1.

[0083] In the embodiment of the present invention, two first electric push rods 18 are fixed on the support plate 1, and the movable rods of the two first electric push rods 18 are fixed to the protection box door 3. The movable rods are driven up / down by the first electric push rods 18 to drive the protection box door 3 to rise / down vertically;

[0084] When the protective box door 3 starts to rise, the traction rope 20 pulls the feeding table 7 toward the protective box door 3. During this process, the reciprocating motion of the feeding table 7 is achieved by releasing the elastic potential energy stored when the first spring 23 is compressed. Through this design, we can ensure that during the descent of the protective box door 3, the traction rope 20 always remains taut, thereby ensuring the stability and safety of the entire operation process.

[0085] Embodiment 2 is distinguished from Embodiment 1 in that the sampling assembly comprises a piston cylinder 14 and a pressure cylinder 15 fixed on a receiving plate 47, the pressure cylinder 15 and the piston cylinder 14 are connected via a delivery pipe 35, and a follower negative pressure assembly is installed on the piston cylinder 14;

[0086] One end of the delivery pipe 35 is connected to the top of the pressure cylinder 15 and the other end is connected to the bottom of the piston cylinder 14;

[0087] The support seat 6 is provided with a lifting assembly for driving the receiving plate 47 to move upright.

[0088] In the embodiment of the present invention, the receiving plate 47 is driven to be vertically lowered by the lifting assembly, so that the pressure cylinder 15 is driven to be vertically lowered by the receiving plate 47;

[0089] When the receiving plate 47 descends, the follow-up negative pressure component is also triggered to store energy, and negative pressure is applied to the pressure cylinder 15. When the pressure cylinder 15 descends to the end of its stroke, the end thereof abuts against the bottom of the storage tank 16, that is, when the pressure cylinder 15 descends to touch the bottom, the follow-up negative pressure component is triggered to release the seal of the pressure cylinder 15, so that the test sample can be sucked into the pressure cylinder 15 through the negative pressure in the pressure cylinder 15.

[0090] The follower negative pressure assembly includes a piston 46 which is sealingly and slidably mounted in the piston cylinder 14, and a U-shaped transmission rod 34 is coaxially fixed on the piston 46. The U-shaped transmission rod 34 passes through the receiving plate 47 and is slidably connected to the receiving plate 47;

[0091] A blocking rod 41 is sealingly and slidably installed in the pressure cylinder 15, a sealing head is coaxially fixed to the end of the blocking rod 41, and a second spring 40 is sleeved on the outer side of the blocking rod 41, one end of the second spring 40 is fixed to the top of the pressure cylinder 15 and the other end is fixed to the blocking rod 41;

[0092] A transverse plate is fixed on the support seat 6, a second electromagnet matched with the blocking rod 41 is fixed at the end of the transverse plate, and a movable groove 3401 for the U-shaped transmission rod 34 to pass through is opened on the transverse plate.

[0093] In the embodiment of the present invention, when the receiving plate 47 descends, the pressure cylinder 15 and the piston cylinder 14 are driven to descend at the same time, and the U-shaped transmission rod 34 is driven to descend at the same time. When the U-shaped transmission rod 34 descends, it is limited by abutting against the feeding platform 7, so that the U-shaped transmission rod 34 cannot continue to descend. At this time, the piston cylinder 14 is still descending, so that the piston cylinder 14 and the piston 46 move relative to each other, so that negative pressure is generated in the piston cylinder 14. When negative pressure is generated in the piston cylinder 14, the negative pressure is applied to the pressure cylinder 15 through the delivery pipe 35;

[0094] When the pressure cylinder 15 descends to the end of the stroke, the blocking rod 41 first contacts the bottom of the storage tank 16, so that the blocking rod 41 and the pressure cylinder 15 move relative to each other, contacting the seal of the pressure cylinder 15, and the test sample is sucked into the pressure cylinder 15 by the negative pressure in the pressure cylinder 15;

[0095] When the blocking rod 41 moves relative to the pressure cylinder 15, the second spring 40 is also pulled up, so that the second spring 40 reserves a certain amount of elastic potential energy. After the test sample is sucked into the pressure cylinder 15 by negative pressure, the pressure cylinder 15 rises. When the pressure cylinder 15 rises, the blocking rod 41 is driven to reset by releasing the elastic potential energy stored in the second spring 40 to seal the pressure cylinder 15 again.

[0096] When the pressure cylinder 15 is driven to move to the top of the detection disk 25 by the rotation of the support seat 6, the sealing rod 41 is attracted by the second electromagnet to make the sealing rod 41 rise, and the seal of the pressure cylinder 15 is released again. When the seal of the pressure cylinder 15 is released at this time, because the negative pressure of this embodiment is based on the movement of the piston 46, negative pressure is generated at the bottom of the piston cylinder 14, and the piston cylinder 14 is positioned to generate positive pressure. When the pressure cylinder 15 is sealed, the positive pressure in the piston cylinder 14 cannot push the piston 46 to move by the positive pressure to keep it in the current state. When the pressure cylinder 15 is released from the seal, the positive pressure in the piston cylinder 14 drives the piston 46 to stand upright and descend. At this time, the negative pressure at the bottom of the piston cylinder 14 is eliminated when the pressure cylinder 15 sucks in the detection sample. At this time, the descent of the piston 46 will compress the air at the bottom of the piston cylinder 14, and the compressed air will drive the detection sample in the pressure cylinder 15 to be discharged, so as to achieve the rapid suction / discharge of the detection sample into / from the pressure cylinder 15 through this embodiment.

[0097] The receiving plate 47 is fixed with a first electromagnet 36, and a movable shaft 37 is slidably mounted on the first electromagnet 36 toward one side of the U-shaped transmission rod 34. The movable shaft 37 is slidably matched with the limiting holes 38 equidistantly provided on the U-shaped transmission rod 34. The receiving plate 47 is also fixed with a support block 39 for providing support force to the movable shaft 37.

[0098] The feeding platform 7 is also provided with a deformation plate matched with the U-shaped transmission rod 34 .

[0099] In the embodiment of the present invention, when the U-shaped transmission rod 34 descends, it first abuts against the deformation plate, and the U-shaped transmission rod 34 is limited by the deformation plate. As the piston cylinder 14 continues to descend, negative pressure is generated at the bottom of the piston cylinder 14, which is essentially the same as the above embodiment.

[0100] The difference is that after a certain negative pressure is generated in the piston cylinder 14, the first electromagnet 36 drives the movable shaft 37 to extend through the limiting hole 38 and insert into the support block 39 to limit the U-shaped transmission rod 34. At this time, the U-shaped transmission rod 34 is equivalent to being fixed to the receiving plate 47, that is, the piston cylinder 14, the piston 46, and the U-shaped transmission rod 34 are synchronously lowered, and no negative pressure will continue to be generated in the piston cylinder 14 during this process, that is, a constant pressure step;

[0101] At this time, the descent of the U-shaped transmission rod 34 will drive the deformation plate to deform and make way for the U-shaped transmission rod 34 to pass through;

[0102] This embodiment makes it possible to control the negative pressure in the piston cylinder 14, and correspondingly realizes quantitative extraction of the pressure cylinder 15;

[0103] It should also be noted that in this embodiment, a notch is shown on one side of the feeding table 7, which is the location for installing the deformation plate, and the deformation plate is not shown in the figure.

[0104] The lifting assembly includes a screw rod 48 rotatably mounted on the support seat 6, and a threaded sleeve 33 threadedly matched with the screw rod 48 is sleeved on the screw rod 48, and the threaded sleeve 33 passes through the receiving plate 47 and is fixed to the receiving plate 47;

[0105] A motor is fixed at the bottom of the support seat 6 , and the output shaft of the motor is coaxially fixed with the screw rod 48 .

[0106] In the embodiment of the present invention, when the motor is working, the output shaft drives the screw rod 48 to rotate, and when the screw rod 48 rotates, the threaded sleeve 33 cooperates with the thread to drive the receiving plate 47 to rise / fall vertically;

[0107] Among them, the support plate 1 is fixed with forming switches 24 at the starting end and the end of the sliding stroke of the feeding table 7. The forming switches 24 are electrically connected to the motor. When the feeding table 7 moves toward the protective box door 3 to the end of the stroke, one of the forming switches 24 is triggered, and the motor is driven to work through the forming switch 24. When the feeding table 7 moves back and forth to the starting section of the stroke, another forming switch 24 is triggered, and the motor is driven to work in the opposite direction through this forming switch 24;

[0108] A data processing device 5 is also installed on the support plate 1. The control and power supply devices required by the present invention are all connected to the data processing device 5. A bracket for installing a computer is provided on one side of the detection device 4. The data processing device 5 is electrically connected to the computer.

[0109] The present invention also provides a convenient method for detecting the concentration of dimethylpropylenediamine, wherein the convenient method for detecting the concentration of dimethylpropylenediamine adopts the convenient device for detecting the concentration of dimethylpropylenediamine, and comprises the following steps:

[0110] Step 1: The protection box door 3 is driven to rise by the first electric push rod 18, so as to drive the feeding platform 7 to move toward the protection box door 3 through the linkage component, and the sampling component is located directly above the positioning plate 13;

[0111] Step 2: Open the storage tank 16 and place the storage tank 16 at the center of the positioning plate 13, place the tank cover 1601 on the collection box 17, and then absorb the test sample in the storage tank 16 through the sampling component, and then drive the feeding table 7 to reset by lowering the protection box door 3, and put the test sample on the sample feeding component through the sampling component, so as to drive the test sample to move to the testing device 4 for testing through the sample feeding component;

[0112] Step 3: derive the concentration and other parameters of the test sample through the detection analysis of the detection device 4.

[0113] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0114] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A convenient dimethylpropylenediamine concentration detection device, comprising a detection device (4) and a support plate (1) fixed to one side of the detection device (4), characterized in that: include: A protection box (2), the protection box (2) being fixed on the support plate (1), the protection box (2) having a sample delivery port on one side, and a protection box door (3) being slidably mounted at the sample delivery port; A feeding platform (7), the feeding platform (7) being slidably mounted on the support plate (1) along the width direction of the support plate (1), a sample feeding component being mounted on the feeding platform (7), and the feeding platform (7) being connected to the protective box door (3) via a linkage component; A support seat (6), wherein the support seat (6) is rotatably mounted on the feeding platform (7), a receiving plate (47) is vertically and slidably mounted on one side of the support seat (6), a sampling assembly is mounted on the receiving plate (47), and the sampling assembly cooperates with the sampling assembly, a second gear (31) is coaxially fixed on the rotating shaft of the support seat (6), the second gear (31) is meshed with a second rack plate (32) fixed on the support plate (1), and a guide rod (22) slidably matched with the feeding platform (7) is also fixed on the support plate (1), a first spring (23) fixed to the feeding platform (7) is sleeved on the guide rod (22), and the first spring (23) is fixed to the guide rod (22) away from the feeding platform (7); A positioning block (12) and a positioning plate (13), wherein the positioning block (12) and the positioning plate (13) are both fixed to the side ends of the support plate (1), and a collection box (17) is detachably mounted on the positioning block (12); The sample feeding assembly comprises a slide (11) which is rotatably mounted on a feeding table (7), and transmission rollers (28) are rotatably mounted on both ends of the slide (11), and the two transmission rollers (28) are connected by a conveyor belt (9); A first gear (27) is coaxially fixed to one end of a transmission roller (28) away from the detection device (4) and facing the protection box door (3), and the first gear (27) is meshed with a first rack plate (26) fixed on the feeding platform (7); A plurality of support shafts (30) are rotatably mounted on the slide (11) and are in rolling cooperation with the conveyor belt (9), wherein the support shafts (30) are located on the inner side of the conveyor belt (9); A second electric push rod (29), the second electric push rod (29) being fixed to the bottom of the slide table (11), and a movable rod of the second electric push rod (29) being fixed to the bottom of the slide table (11); The detection device (4) is provided with a slot for placing a sample on one side facing the support plate (1), a detection device box door (8) is vertically and slidably mounted at the slot, a transmission rod (10) is rotatably mounted on the detection device box door (8), and an arc-shaped guide rod (42) penetrating the transmission rod (10) and slidably cooperating with the transmission rod (10) is also fixed on the detection device box door (8), and a third spring (43) is sleeved on the arc-shaped guide rod (42); A connecting shaft (44) is fixed to the side of the transmission rod (10) facing the slide table (11), and the connecting shaft (44) cooperates with a connecting groove (45) provided on the slide table (11); The linkage assembly comprises a linkage block (701) arranged at the bottom of the feeding platform (7) and formed integrally with the feeding platform (7); the linkage block (701) is connected to the protection box door (3) via a traction rope (20); and a plurality of first guide wheels (21) and a second guide wheel (2101) for guiding and limiting the traction rope (20) are rotatably mounted on the support plate (1); The sampling assembly comprises a piston cylinder (14) and a pressure cylinder (15) fixed on a receiving plate (47); the pressure cylinder (15) and the piston cylinder (14) are connected via a delivery pipe (35); and a follower negative pressure assembly is installed on the piston cylinder (14); One end of the delivery pipe (35) is connected to the top end of the pressure cylinder (15), and the other end is connected to the ground end of the piston cylinder (14); A lifting assembly for driving the receiving plate (47) to move upright is installed on the support seat (6).

2. A convenient dimethylpropylenediamine concentration detection device according to claim 1, characterized in that: The follower negative pressure assembly comprises a piston (46) sealingly and slidably mounted in the piston cylinder (14); a U-shaped transmission rod (34) is coaxially fixed to the piston (46); the U-shaped transmission rod (34) passes through the receiving plate (47) and is slidably connected to the receiving plate (47); A blocking rod (41) is sealingly and slidably mounted in the pressure cylinder (15), a sealing head is coaxially fixed to the end of the blocking rod (41), a second spring (40) is sleeved on the outside of the blocking rod (41), one end of the second spring (40) is fixed to the top of the pressure cylinder (15) and the other end is fixed to the blocking rod (41); A transverse plate is fixed on the support seat (6), and a second electromagnet cooperating with the blocking rod (41) is fixed at the end of the transverse plate.

3. A convenient-to-use dimethylpropylenediamine concentration detection device according to claim 2, characterized in that: A first electromagnet (36) is fixed on the receiving plate (47), a movable shaft (37) is slidably mounted on the first electromagnet (36) toward one side of the U-shaped transmission rod (34), the movable shaft (37) is slidably matched with limiting holes (38) equidistantly provided on the U-shaped transmission rod (34), and a support block (39) for providing a supporting force to the movable shaft (37) is also fixed on the receiving plate (47); A deformation plate cooperating with the U-shaped transmission rod (34) is also mounted on the feeding platform (7).

4. A convenient dimethylpropylenediamine concentration detection device according to claim 3, characterized in that: The lifting assembly comprises a screw rod (48) rotatably mounted on the support seat (6), a threaded sleeve (33) threadably matched with the screw rod (48) is sleeved on the screw rod (48), and the threaded sleeve (33) passes through the receiving plate (47) and is fixed to the receiving plate (47); A motor is fixed to the bottom of the support seat (6), and the output shaft of the motor is coaxially fixed to the screw rod (48).

5. A convenient method for detecting the concentration of dimethylpropylenediamine, wherein the convenient method for detecting the concentration of dimethylpropylenediamine adopts the convenient device for detecting the concentration of dimethylpropylenediamine as claimed in any one of claims 1 to 4, characterized in that: The following steps are involved: Step 1: driving the protective box door (3) to rise by means of a first electric push rod (18), so as to drive the feeding platform (7) to move toward the protective box door (3) through a linkage assembly, and to place the sampling assembly directly above the positioning plate (13); Step 2: Open the storage tank (16) and place the storage tank (16) at the center of the positioning plate (13), place the tank cover (1601) on the collection box (17), and then use the sampling component to absorb the test sample in the storage tank (16), and then drive the feeding table (7) to reset by lowering the protection box door (3), and put the test sample onto the sample feeding component through the sampling component, so as to drive the test sample to move to the testing device (4) for testing through the sample feeding component; Step 3: derive the concentration and other parameters of the test sample through the detection analysis of the detection device (4).

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