Auxiliary titration device for physical and chemical inspection

Abstract

The invention belongs to the field of drinking water detection, and provides a physicochemical inspection auxiliary titration device, which comprises a workbench, and is characterized in that a lifting adjusting mechanism is arranged on one side of the top of the workbench, a cross rod is arranged on one side of the lifting adjusting mechanism, a shaking mechanism is arranged on one side of the cross rod, and the shaking mechanism comprises a structure box; an inner cavity of the structure box is rotationally connected with a round rod, the outer ring of the round rod is sleeved with a tooth column, the outer ring of the tooth column is in meshed connection with a tooth plate through clamping teeth, and a telescopic rod is arranged on one side of the tooth plate; the uniformity and efficiency of the titration reaction are improved, the accuracy and reliability of the detection result are also improved, especially in continuous detection of large-batch samples, human intervention and operation errors can be greatly reduced, the whole working process is optimized, and the requirement for high-precision water quality detection is met.

Description

Technical Field

[0001] The present invention belongs to the field of drinking water detection, and specifically relates to a physical and chemical inspection auxiliary titration device. Background Art

[0002] The physical and chemical inspection auxiliary titration device plays a crucial role in the field of water quality detection. Especially in the core link of drinking water quality monitoring, the titration method, as a classic chemical analysis method, gradually adds a titrant with a known concentration to the sample to be tested, and judges the content of the target substance according to the reaction end point. Its accuracy and reliability directly affect the accuracy of the water quality detection result. However, with the continuous increase in detection requirements, especially when continuous detection of a large number of samples is required, the existing titration equipment and technologies gradually expose limitations.

[0003] Specifically, during the titration detection of drinking water, when the number of samples to be detected is large, after the operator completes the detection of each sample, the sample needs to be replaced with the next one. During this process, if the titrant stands still for a long time between the detections of two samples, it is easy to produce precipitation due to unstable chemical properties or solute precipitation. This precipitation phenomenon will not only change the actual concentration of the titrant, but also may lead to incomplete reactions or a decrease in the reaction rate during the titration process, thereby reducing the detection accuracy.

[0004] Therefore, those skilled in the art have proposed a physical and chemical inspection auxiliary titration device to solve the problems raised in the background art. Summary of the Invention

[0005] In order to solve the above technical problems, the present invention provides a physical and chemical inspection auxiliary titration device to solve the problems that when the number of samples to be detected is large, after the operator completes the detection of each sample, the sample needs to be replaced with the next one. During this process, if the titrant stands still for a long time between the detections of two samples, it is easy to produce precipitation due to unstable chemical properties or solute precipitation, etc.

[0006] A physical and chemical inspection auxiliary titration device includes a workbench. One side of the top of the workbench is provided with a lifting and adjusting mechanism, and one side of the lifting and adjusting mechanism is provided with a cross bar, and one side of the cross bar is provided with a shaking mechanism. The shaking mechanism includes a structure box. The inner cavity of the structure box is rotatably connected with a round rod, and a toothed column is sleeved on the outer circle of the round rod, and the outer circle of the toothed column is meshed with a toothed plate through a clamping tooth. One side of the toothed plate is provided with a telescopic rod. One side of the structure box is provided with a limiting mechanism, and the inner cavity of the limiting mechanism is provided with a titrant container.

[0007] A bottom frame is provided on the top of the workbench. A structure groove is opened at the bottom of the workbench. A linkage mechanism is arranged in the inner cavity of the structure groove. The linkage mechanism includes a reciprocating lead screw, and a second nut sleeve is sleeved outside the reciprocating lead screw. A connection groove is opened at the top of the inner cavity of the structure groove. The bottom of the telescopic rod penetrates through the connection groove and is fixedly connected to one side of the second nut sleeve.

[0008] Preferably, one side of the structure box is fixedly connected to one side of the cross bar. A track groove is opened on the outer wall of one side of the structure box. Balance grooves are opened on both sides of the outer wall of the other side of the structure box. The top of the telescopic rod is fixedly connected to a long rod. One side of the long rod penetrates through the track groove and is fixedly connected to one side of the toothed plate. Both ends of the round rod are rotatably connected to the inner wall of the adjacent structure box through a rotating shaft. Connecting rods are sleeved on both sides of the outer circle of the round rod. One end of each of the two connecting rods penetrates through the adjacent balance groove and extends to one side of the structure box.

[0009] Preferably, the limiting mechanism includes a placement seat. The extended ends of the two connecting rods are fixedly connected to one side of the placement seat. An arc-shaped clamp one is fixedly connected to the inner wall of one side of the placement seat. An arc-shaped clamp two is arranged on one side of the arc-shaped clamp one. A pull handle is arranged on one side of the placement seat. Both ends of the pull handle penetrate through the side wall of the placement seat and are fixedly connected to the outer arc surface of the arc-shaped clamp two.

[0010] Preferably, magnet blocks are fixedly connected to both sides of the arc-shaped clamp two and both sides of the arc-shaped clamp one. The arc-shaped clamp two is magnetically connected to the arc-shaped clamp one through the magnet blocks. The inner arc surfaces of the arc-shaped clamp two and the arc-shaped clamp one are respectively attached to the outer walls of the adjacent titrant containers.

[0011] Preferably, the lifting and adjusting mechanism includes a housing. An adjusting lead screw is vertically arranged in the inner cavity of the housing. A first nut sleeve is sleeved outside the adjusting lead screw. A limiting through groove is opened in the upper part of one side of the housing. One side of the first nut sleeve is fixedly connected to a connection block that penetrates through the limiting through groove. One side of the connection block is fixedly connected to one side of the adjacent cross bar. Both ends of the adjusting lead screw are rotatably connected to the inner walls of the adjacent housing through a rotating shaft. A handle is sleeved on the outer circle of the adjusting lead screw. Operation through grooves adapted to the handle are opened on the lower parts of the outer walls on both sides of the housing.

[0012] Preferably, a second bevel gear is sleeved on the outer ring of the reciprocating lead screw. A limit seat is fixedly connected to the top of the inner cavity of the structure groove. A thin rod is arranged on one side of the limit seat. One end of the thin rod passes through the limit seat through a bushing and is fixedly connected to the second bevel gear. The two second bevel gears are meshed and connected through teeth. The other end of the thin rod is rotatably connected to the inner wall of the adjacent structure groove through a rotating shaft. One side of the top of the inner cavity of the structure groove is rotatably connected to a force-bearing rod through a rotating shaft. A first bevel gear is fixedly connected to the bottom of the force-bearing rod. A first bevel gear is sleeved on one side of the outer ring of the thin rod. The two first bevel gears are meshed and connected through teeth.

[0013] Preferably, a small pulley is sleeved on the outer ring of the force-bearing rod. A power rod is arranged on one side of the small pulley. A large pulley is fixedly connected to the bottom of the power rod. The large pulley and the small pulley are wound and connected through a connecting belt. The top of the power rod passes through the top of the inner cavity of the structure groove through a bushing and is fixedly connected to the bottom of the bottom frame.

[0014] Preferably, a motor is fixedly connected to the inner wall of one side of the structure groove. The output shaft of the motor is fixedly connected to one end of the reciprocating lead screw. The other end of the reciprocating lead screw is rotatably connected to the inner wall of the adjacent structure groove through a rotating shaft.

[0015] Preferably, two slots are formed in the inner surface wall of the bottom frame. An experimental beaker is vertically arranged in the inner cavity of the bottom frame. Plug rods adapted to the slots are fixedly connected to both sides of the outer ring of the experimental beaker.

[0016] Preferably, a base is arranged below the workbench. A card slot is formed in the bottom of the workbench. An annular clamping block adapted to the card slot is fixedly connected to the top of the base. A valve is installed at the output end of the titrant container.

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

[0018] 1. Through the settings of the motor, reciprocating lead screw, telescopic rod, long rod, toothed plate, round rod and connecting rod, the present invention effectively avoids the problem of precipitation of the titrant due to long-term standing, and at the same time promotes the full mixing of the drinking water sample and the titrant. This design not only improves the uniformity and efficiency of the titration reaction, but also enhances the accuracy and reliability of the detection results. Especially in the continuous detection of a large number of samples, it can greatly reduce human intervention and operation errors, optimize the overall work process, and meet the requirements of high-precision water quality detection.

[0019] 2. Through the settings of the small pulley, large pulley, connecting belt, power rod, and bottom frame in the present invention, the small pulley on the stress rod drives the large pulley through the connecting belt, and the power rod drives the bottom frame to rotate, so that the experimental beaker rotates accordingly, achieving the effect of promoting the full mixing of the drinking water sample and the titrant, accelerating the reaction rate, and improving the consistency and accuracy of the detection results.

[0020] 3. Through the settings of the placement seat, arc clamp one, arc clamp two, pull handle, and magnet block in the limiting mechanism of the present invention, the operator pulls the pull handle to separate the arc clamp two from the arc clamp one, places the titrant container and then releases the pull handle, and the magnet block automatically adsorbs and fixes the titrant container, achieving the effect of quickly installing and disassembling the titrant container, improving the operation convenience, and at the same time ensuring the stability and safety of the titrant container during the experiment. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 is a schematic diagram of the internal structure of the structure groove of the present invention;

[0023] Figure 3 is a sectional view of the workbench of the present invention;

[0024] Figure 4 is a schematic diagram of the internal structure of the linkage mechanism of the present invention;

[0025] Figure 5 is a schematic diagram of the internal structure of the shaking mechanism of the present invention;

[0026] Figure 6 is a schematic diagram of the bottom frame structure of the present invention;

[0027] Figure 7 is a schematic diagram of the internal structure of the lifting and adjusting mechanism of the present invention.

[0028] In the figure:

[0029] 1. Workbench; 2. Base; 3. Lifting and adjusting mechanism; 301. Outer shell; 302. Operation through slot; 303. Adjusting screw rod; 304. First screw sleeve; 305. Connecting block; 306. Limiting through slot; 307. Grip; 4. Cross bar; 5. Shaking mechanism; 501. Structure box; 502. Track groove; 503. Long rod; 504. Telescopic rod; 505. Tooth plate; 506. Round rod; 507. Tooth column; 508. Connecting rod; 509. Balance groove; 6. Limiting mechanism; 601. Placing seat; 602. Pull handle; 603. First arc-shaped clamp; 604. Second arc-shaped clamp; 7. Titrant container; 8. Bottom frame; 9. Experimental beaker; 10. Card slot; 11. Annular clamping block; 12. Structure groove; 13. Linkage mechanism; 1301. Power rod; 1302. Large pulley; 1303. Small pulley; 1304. First bevel gear; 1305. Thin rod; 1306. Limiting seat; 1307. Second bevel gear; 1308. Motor; 1309. Connecting groove; 1310. Second screw sleeve; 1311. Force-bearing rod; 1312. Reciprocating screw rod; 14. Slot; 15. Insert rod. Specific implementation mode

[0030] The following further describes the implementation mode of the present invention in detail with reference to the drawings and embodiments. The following embodiments are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0031] As shown in the attached Figure 1 to the attached Figure 7 figures:

[0032] Embodiment 1: The present invention provides a physical and chemical inspection auxiliary titration device, including a workbench 1. A lifting and adjusting mechanism 3 is arranged on one side of the top of the workbench 1. A cross bar 4 is arranged on one side of the lifting and adjusting mechanism 3. A shaking mechanism 5 is arranged on one side of the cross bar 4. The shaking mechanism 5 includes a structure box 501. A round rod 506 is rotatably connected to the inner cavity of the structure box 501. A tooth column 507 is sleeved on the outer circle of the round rod 506. The outer circle of the tooth column 507 is meshed and connected with a tooth plate 505 through teeth. A telescopic rod 504 is arranged on one side of the tooth plate 505. A limiting mechanism 6 is arranged on one side of the structure box 501. A titrant container 7 is arranged in the inner cavity of the limiting mechanism 6;

[0033] A bottom frame 8 is arranged on the top of the workbench 1. A structure groove 12 is opened at the bottom of the workbench 1. A linkage mechanism 13 is arranged in the inner cavity of the structure groove 12. The linkage mechanism 13 includes a reciprocating screw rod 1312. A second screw sleeve 1310 is sleeved on the outer circle of the reciprocating screw rod 1312. A connecting groove 1309 is opened at the top of the inner cavity of the structure groove 12. The bottom of the telescopic rod 504 penetrates through the connecting groove 1309 and is fixedly connected to one side of the second screw sleeve 1310.

[0034] One side of the structural box 501 is fixedly connected to one side of the cross bar 4. A track groove 502 is provided on the outer wall of one side of the structural box 501. Balance grooves 509 are provided on both sides of the outer wall of the other side of the structural box 501. The top of the telescopic rod 504 is fixedly connected to a long rod 503. One side of the long rod 503 passes through the track groove 502 and is fixedly connected to one side of the toothed plate 505. Both ends of the round rod 506 are rotatably connected to the inner wall of the adjacent structural box 501 through a rotating shaft. Connecting rods 508 are sleeved on both sides of the outer circle of the round rod 506. One end of each of the two connecting rods 508 passes through the adjacent balance groove 509 and extends to one side of the structural box 501.

[0035] The limiting mechanism 6 includes a placement seat 601. The extended ends of the two connecting rods 508 are fixedly connected to one side of the placement seat 601. An arc-shaped clamp one 603 is fixedly connected to the inner wall of one side of the placement seat 601. An arc-shaped clamp two 604 is provided on one side of the arc-shaped clamp one 603. A pull handle 602 is provided on one side of the placement seat 601. Both ends of the pull handle 602 pass through the side wall of the placement seat 601 and are fixedly connected to the outer arc surface of the arc-shaped clamp two 604.

[0036] Magnet blocks are fixedly connected to both sides of the arc-shaped clamp two 604 and both sides of the arc-shaped clamp one 603. The arc-shaped clamp two 604 and the arc-shaped clamp one 603 are magnetically connected through the magnet blocks. The inner arc surfaces of the arc-shaped clamp two 604 and the arc-shaped clamp one 603 are respectively attached to the outer walls of the adjacent titrant containers 7.

[0037] The lifting and adjusting mechanism 3 includes a housing 301. An adjusting screw rod 303 is vertically arranged in the inner cavity of the housing 301. A first screw sleeve 304 is sleeved on the outer circle of the adjusting screw rod 303. A limiting through groove 306 is provided in the upper part of one side of the housing 301. A connecting block 305 passing through the limiting through groove 306 is fixedly connected to one side of the first screw sleeve 304. One side of the connecting block 305 is fixedly connected to one side of the adjacent cross bar 4. Both ends of the adjusting screw rod 303 are rotatably connected to the inner walls of the adjacent housing 301 through a rotating shaft. A grip 307 is sleeved on the outer circle of the adjusting screw rod 303. Operation through grooves 302 adapted to the grip 307 are provided on the lower parts of the outer walls on both sides of the housing 301.

[0038] As can be seen from the above, in the working process of drinking water detection, the operator first connects the titrant container 7 with the limit mechanism 6 and connects the experimental beaker 9 with the bottom frame 8. Then, pour the drinking water sample to be detected into the experimental beaker 9, adjust the titrant container 7 to a predetermined height position. After completing the above steps, start the motor 1308. The motor 1308 drives the reciprocating lead screw 1312 to rotate, and the second nut 1310 drives the telescopic rod 504 to reciprocate along the reciprocating lead screw 1312. During this process, the long rod 503 also drives the rack 505 to adjust its position horizontally through the rotation of the reciprocating lead screw 1312. When the rack 505 moves, the tooth column 507 drives the round rod 506 to rotate. As the long rod 503 reciprocates horizontally along the track groove 502, the round rod 506 first rotates in one direction and then rotates in the opposite direction, causing the connecting rod 508 connected to the round rod 506 to swing left and right inside the corresponding balance groove 509, thereby driving the titrant container 7 in the placement seat 601 to make reciprocating position changes above the experimental beaker 9. Since the diameter size of the experimental beaker 9 is adapted to the working range of the shaking mechanism 5, it is also ensured that the titrant is always inside the receiving area of the experimental beaker 9. When the operator needs to replace the drinking water sample, the operator closes the valve on the titrant container 7 without stopping the motor 1308, so that the titrant container 7 is always shaken during the sample replacement process, preventing the titrant inside from precipitating. In addition, during the rotation of the reciprocating lead screw 1312, the second bevel gear 1307 on its outer ring is driven and drives another second bevel gear 1307 to rotate through the engagement of teeth, so that the two first bevel gears 1304 rotate together, and then drive the force-bearing rod 1311 to rotate. The small pulley 1303 on the force-bearing rod 1311 drives the large pulley 1302 through the connecting belt, and finally the power rod 1301 drives the bottom frame 8 to rotate, so that the experimental beaker 9 inside the bottom frame 8 rotates to assist in mixing the drinking water sample and the titrant;

[0039] During the rotation of the reciprocating lead screw 1312, the bevel gear two 1307 on its outer ring is driven. Through the transmission of the engaging teeth, another bevel gear two 1307 drives the thin rod 1305 to rotate, so that the two bevel gears one 1304 rotate together, driving the force-bearing rod 1311 to rotate. The small pulley 1303 on the force-bearing rod 1311 drives the large pulley 1302 through the connecting belt. Finally, the power rod 1301 drives the bottom frame 8 to rotate, and the experimental beaker 9 inside the bottom frame 8 also rotates together, achieving the effect of assisting in the mixing of the drinking water sample and the titrant. First of all, this solution realizes the automatic reciprocating movement of the titrant container 7 above the experimental beaker 9, effectively avoiding the precipitation of the titrant due to long-term static placement, ensuring the stability of the titrant concentration, solving the problem of titrant precipitation mentioned in the background technology, and improving the detection accuracy. Secondly, when it is necessary to replace the drinking water sample, the operator only needs to close the valve on the titrant container 7 without stopping the motor 1308, so that the titrant container 7 is always shaken during the process of replacing the sample, preventing the precipitation of the titrant inside it, and further improving the detection efficiency and accuracy. Finally, it effectively promotes the mixing between the drinking water sample and the titrant, not only accelerating the reaction process, but also improving the consistency and reliability of the titration result.

[0040] Embodiment 2: This embodiment is basically the same as the previous embodiment. The difference is that a bevel gear two 1307 is sleeved on the outer ring of the reciprocating lead screw 1312. A limit seat 1306 is fixedly connected to the top of the inner cavity of the structural groove 12. A thin rod 1305 is arranged on one side of the limit seat 1306, and one end of the thin rod 1305 passes through the limit seat 1306 through a bushing and is fixedly connected to a bevel gear two 1307. The two bevel gears two 1307 are meshed and connected through engaging teeth. The other end of the thin rod 1305 is rotatably connected to the inner wall of the adjacent structural groove 12 through a rotating shaft. One side of the top of the inner cavity of the structural groove 12 is rotatably connected to a force-bearing rod 1311 through a rotating shaft. A bevel gear one 1304 is fixedly connected to the bottom of the force-bearing rod 1311. A bevel gear one 1304 is sleeved on one side of the outer ring of the thin rod 1305. The two bevel gears one 1304 are meshed and connected through engaging teeth.

[0041] A small pulley 1303 is sleeved on the outer ring of the force-bearing rod 1311. A power rod 1301 is arranged on one side of the small pulley 1303, and a large pulley 1302 is fixedly connected to the bottom of the power rod 1301. The large pulley 1302 and the small pulley 1303 are wound and connected through a connecting belt. The top of the power rod 1301 passes through the top of the inner cavity of the structural groove 12 through a bushing and is fixedly connected to the bottom of the bottom frame 8.

[0042] As can be seen from the above, when the user needs to adjust the height position of the titrant container 7, the user can pinch the handle 307 with two fingers respectively through the two operation slots 302, and rotate the handle 307 to drive the adjusting screw rod 303 to rotate. During the rotation of the adjusting screw rod 303, the first screw sleeve 304 will move straight up and down along the adjusting screw rod 303 under the limiting state of the connecting block 305 cooperating with the limiting slot 306, so as to achieve the adjustment of the height position of the titrant container 7 in the limiting mechanism 6. When the user needs to replace the titrant container 7 inside the limiting mechanism 6, the user pulls the pull handle 602 forcefully to release the magnetic connection between the second arc-shaped clamp 604 and the first arc-shaped clamp 603. Then, the user places another titrant container 7 in the inner cavity of the first arc-shaped clamp 603. The user pushes the pull handle 602 inward to drive the second arc-shaped clamp 604 to horizontally displace in the inner cavity of the placement seat 601 until the magnets on both sides of the second arc-shaped clamp 604 re-establish magnetic connection with the magnets on both sides of the first arc-shaped clamp 603, ensuring the limiting stability of the titrant container 7. Through the arrangement of the insertion rod 15 and the insertion slot 14, it is easier for the user to place the experimental beaker 9 into the inner part of the bottom frame 8, and during the rotation of the bottom frame 8, the experimental beaker 9 can be driven to rotate together, avoiding violent shaking of the experimental beaker 9 during this process.

[0043] Embodiment 3: This embodiment is basically the same as the previous embodiment, except that a motor 1308 is fixedly connected to one inner wall of the structure groove 12, and the output shaft of the motor 1308 is fixedly connected to one end of the reciprocating screw rod 1312, and the other end of the reciprocating screw rod 1312 is rotatably connected to the inner wall of the adjacent structure groove 12 through a rotating shaft.

[0044] Two insertion slots 14 are provided on the inner surface of the bottom frame 8, and an experimental beaker 9 is vertically arranged in the inner cavity of the bottom frame 8, and insertion rods 15 adapted to the insertion slots 14 are fixedly connected to both outer sides of the outer ring of the experimental beaker 9.

[0045] A base 2 is provided below the workbench 1, and a card slot 10 is opened at the bottom of the workbench 1. An annular clamping block 11 adapted to the card slot 10 is fixedly connected to the top of the base 2. A valve is installed at the output end of the titrant container 7.

[0046] As can be seen from the above, through the settings of the structural box 501, the cross bar 4, the track groove 502, the balance groove 509, the telescopic rod 504, the long rod 503, the toothed plate 505, the round rod 506 and the connecting rod 508, in the working process, when the motor 1308 drives the reciprocating lead screw 1312 to rotate, the telescopic rod 504 drives the long rod 503 to move along the track groove 502, so that the toothed plate 505 pushes the round rod 506 to rotate forward and backward, and then drives the connecting rod 508 to swing left and right in the balance groove 509, and finally realizes the reciprocating movement of the titrant container 7, achieving the effect of ensuring that the titrant container 7 is always in a suitable position above the experimental beaker 9, avoiding the problem of precipitation caused by the long-term static state of the titrant, and at the same time improving the stability of the device operation. Through the settings of the arc clip two 604, the arc clip one 603 and the magnet block, in the working process, the magnetic connection of the magnet block makes the arc clip two 604 and the arc clip one 603 closely fit the outer wall of the titrant container 7, achieving the effect of preventing the titrant container 7 from shifting or falling off during the shaking process. Through the settings of the outer shell 301, the adjusting lead screw 303, the first screw sleeve 304, the limit through groove 306, the connecting block 305 and the handle 307 in the lifting adjustment mechanism 3, in the working process, the operator rotates the handle 307 to make the adjusting lead screw 303 rotate, and the first screw sleeve 304 drives the connecting block 305 to move up and down along the limit through groove 306, so as to adjust the height of the cross bar 4 and its upper components, achieving the effect of flexibly adjusting the height of the titrant container 7.

[0047] The embodiments of the present invention are given for the purposes of illustration and description. Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those of ordinary skill in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A physical and chemical inspection auxiliary titration device, comprising a workbench (1), characterized in that: On one side of the top of the workbench (1), a lifting and adjusting mechanism (3) is provided. On one side of the lifting and adjusting mechanism (3), a cross bar (4) is provided. And on one side of the cross bar (4), a shaking mechanism (5) is provided. The shaking mechanism (5) includes a structure box (501). Inside the structure box (501), a round rod (506) is rotatably connected. On the outer circle of the round rod (506), a tooth column (507) is sleeved. And on the outer circle of the tooth column (507), a tooth plate (505) is meshed and connected through engaging teeth. On one side of the tooth plate (505), a telescopic rod (504) is provided. On one side of the structure box (501), a limiting mechanism (6) is provided. And inside the limiting mechanism (6), a titrant container (7) is provided; On the top of the workbench (1), a bottom frame (8) is provided. Inside the bottom of the workbench (1), a structure groove (12) is opened. Inside the structure groove (12), a linkage mechanism (13) is provided. And the linkage mechanism (13) includes a reciprocating lead screw (1312). And on the outer circle of the reciprocating lead screw (1312), a second nut (1310) is sleeved. On the top of the inner cavity of the structure groove (12), a connection groove (1309) is opened. The bottom of the telescopic rod (504) passes through the connection groove (1309) and is fixedly connected to one side of the second nut (1310).

2. The physicochemical inspection auxiliary titration device according to claim 1, characterized in that: One side of the structure box (501) is fixedly connected to one side of the cross bar (4). And on one side outer wall of the structure box (501), an orbital groove (502) is opened. And on both sides of the other side outer wall of the structure box (501), balance grooves (509) are opened. On the top of the telescopic rod (504), a long rod (503) is fixedly connected. And on one side of the long rod (503), it passes through the orbital groove (502) and is fixedly connected to one side of the tooth plate (505). The two ends of the round rod (506) are respectively rotatably connected to the inner walls of the adjacent structure boxes (501) through rotating shafts. On both sides of the outer circle of the round rod (506), connecting rods (508) are sleeved. One end of each of the two connecting rods (508) respectively passes through the adjacent balance grooves (509) and extends to one side of the structure box (501).

3. The physical and chemical inspection auxiliary titration device according to claim 2, characterized in that: The limiting mechanism (6) includes a placement seat (601). The extending ends of the two connecting rods (508) are both fixedly connected to one side of the placement seat (601). And on one side inner wall of the placement seat (601), a first arc-shaped clamp (603) is fixedly connected. And on one side of the first arc-shaped clamp (603), a second arc-shaped clamp (604) is provided. On one side of the placement seat (601), a pull handle (602) is provided. Both ends of the pull handle (602) pass through the side wall of the placement seat (601) and are fixedly connected to the outer arc surface of the second arc-shaped clamp (604).

4. The physicochemical inspection auxiliary titration device according to claim 3, wherein: On both sides of the second arc-shaped clamp (604) and both sides of the first arc-shaped clamp (603), magnet blocks are fixedly connected. The second arc-shaped clamp (604) and the first arc-shaped clamp (603) are magnetically connected through the magnet blocks. The inner arc surface of the second arc-shaped clamp (604) and the inner arc surface of the first arc-shaped clamp (603) respectively fit against the outer wall of the adjacent titrant container (7).

5. The physical and chemical inspection auxiliary titration device according to claim 1, wherein: The lifting and adjusting mechanism (3) includes a housing (301). A adjusting screw rod (303) is vertically arranged in the inner cavity of the housing (301), and a first screw sleeve (304) is sleeved on the outer circle of the adjusting screw rod (303). A limiting through groove (306) is formed in the upper part of one side of the housing (301). One side of the first screw sleeve (304) is fixedly connected with a connecting block (305) penetrating through the limiting through groove (306), and one side of the connecting block (305) is fixedly connected with one side of the adjacent cross bar (4). The two ends of the adjusting screw rod (303) are respectively rotationally connected with the inner walls of the adjacent housings (301) through rotating shafts. A handle (307) is sleeved on the outer circle of the adjusting screw rod (303). Operation through grooves (302) adapted to the handle (307) are formed in the lower parts of the outer walls on both sides of the housing (301).

6. The physical and chemical inspection auxiliary titration device according to claim 1, characterized in that: A second bevel gear (1307) is sleeved on the outer circle of the reciprocating screw rod (1312). A limiting seat (1306) is fixedly connected to the top of the inner cavity of the structure groove (12). A thin rod (1305) is arranged on one side of the limiting seat (1306), and one end of the thin rod (1305) penetrates through the limiting seat (1306) through a bush and is fixedly connected with the second bevel gear (1307). The two second bevel gears (1307) are meshed and connected through teeth. The other end of the thin rod (1305) is rotationally connected with the inner wall of the adjacent structure groove (12) through a rotating shaft. A stress rod (1311) is rotationally connected to one side of the top of the inner cavity of the structure groove (12) through a rotating shaft. A first bevel gear (1304) is fixedly connected to the bottom of the stress rod (1311). A first bevel gear (1304) is sleeved on one side of the outer circle of the thin rod (1305). The two first bevel gears (1304) are meshed and connected through teeth.

7. The physicochemical inspection auxiliary titration device according to claim 6, wherein: A small belt pulley (1303) is sleeved on the outer circle of the stress rod (1311). A power rod (1301) is arranged on one side of the small belt pulley (1303), and a large belt pulley (1302) is fixedly connected to the bottom of the power rod (1301). The large belt pulley (1302) and the small belt pulley (1303) are wound and connected through a connecting belt. The top of the power rod (1301) penetrates through the top of the inner cavity of the structure groove (12) through a bush and is fixedly connected with the bottom of the bottom frame (8).

8. The physical and chemical inspection auxiliary titration device according to claim 1, characterized in that: A motor (1308) is fixedly connected to one inner wall of the structure groove (12), and the output shaft of the motor (1308) is fixedly connected to one end of the reciprocating screw rod (1312). The other end of the reciprocating screw rod (1312) is rotationally connected with the inner wall of the adjacent structure groove (12) through a rotating shaft.

9. The physicochemical inspection auxiliary titration device according to claim 1, wherein: Two slots (14) are formed in the inner surface of the bottom frame (8). An experimental beaker (9) is vertically arranged in the inner cavity of the bottom frame (8), and inserting rods (15) adapted to the slots (14) are fixedly connected to both sides of the outer circle of the experimental beaker (9).

10. The physicochemical inspection-assisted titration device according to claim 1, characterized in that: A base (2) is provided below the workbench (1), and a clamping groove (10) is formed at the bottom of the workbench (1). A ring-shaped clamping block (11) adapted to the clamping groove (10) is fixedly connected to the top of the base (2). A valve is installed at the output end of the titrant container (7).

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