Dual-purpose universal titration stand

Abstract

The application discloses a dual-purpose universal titration stand, relates to the technical field of titration stands, and comprises a fixing clamp, one end of the fixing clamp is fixedly connected with a bearing plate, the inner wall of the bearing plate is rotationally connected with an annular rod, the outer surface of the annular rod is fixedly connected with a movable mechanism, the side, away from the annular rod, of the movable mechanism is fixedly connected with an extension arm, the end, away from the movable mechanism, of the extension arm is fixedly connected with an L-shaped rod, the side, away from the extension arm, of the L-shaped rod is fixedly connected with a fixing tube clamp, the bottom of the bearing plate is fixedly connected with a connecting rod, and the bottom end of the connecting rod is fixedly connected with a shaking mechanism; the annular rod can drive the fixing tube clamp to be adjusted in angle, cooperates with the extension arm, so that the fixing tube clamp can flexibly adjust the position of a burette according to the requirement of the fixing tube clamp, the burette is conveniently moved to the top of a container, and the titration experiment is facilitated to be carried out; meanwhile, the fixing clamp can enable the whole device to be quickly fixed on an object in a production site.

Description

Technical Field

[0001] This invention relates to the field of titration holder technology, and more specifically to a dual-purpose universal titration holder. Background Technology

[0002] A laboratory burette rack is a fundamental piece of equipment commonly used in experiments and plays a vital role. It is typically used to hold the burette and provide support for the titration operation. A typical burette rack consists of a base, a column, and a clamp for securing the burette. In traditional usage, the burette is fixed to the rack, the experimenter holds the burette with one hand and the conical flask with the other, shaking the flask to mix the titrant evenly.

[0003] When using large or unusual containers, it is difficult to quickly place them directly under the burette, and the burette cannot be accurately moved directly above the container, which is detrimental to titration experiments. Furthermore, transporting the entire titration stand to the production site is inconvenient. Therefore, this invention designs a dual-purpose universal titration stand to solve the above problems. Summary of the Invention

[0004] To solve the above-mentioned technical problems, the present invention provides a dual-purpose universal titration stand, including a fixing clamp, a support plate fixedly connected to one end of the fixing clamp, an annular rod rotatably connected to the inner wall of the support plate, a movable mechanism fixedly connected to the outer surface of the annular rod, a telescopic arm fixedly connected to the side of the movable mechanism away from the annular rod, an L-shaped rod fixedly connected to the end of the telescopic arm away from the movable mechanism, a fixing tube clamp fixedly connected to the side of the L-shaped rod away from the telescopic arm, a connecting rod fixedly connected to the bottom of the support plate, and a rocking mechanism fixedly connected to the bottom end of the connecting rod; the fixing clamp can be clamped onto a fixed object in the production site, and the telescopic arm can drive the L-shaped stand and the fixing tube clamp to telescopically move.

[0005] The movable mechanism includes a ring cylinder with an annular groove on its inner wall. A rotating ring is rotatably connected to the inner surface of the ring cylinder. A push spring is fixedly connected to the inner wall of the rotating ring. A push plate is fixedly connected to the end of the push spring away from the rotating ring. A strip plate is fixedly connected to the side of the push plate close to the push spring. A square tube is slidably connected to the outer surface of the strip plate.

[0006] Furthermore, a support rod is fixedly connected to the inner wall of the square tube, and a rotating block is rotatably connected to the outer surface of the support rod. A reset rod is fixedly connected to the side of the rotating block away from the strip, and a vertical plate is fixedly connected to the bottom end of the reset rod. The side of the ring cylinder away from the telescopic arm is fixedly connected to the outer surface of the ring rod. The outer surface of the square tube is fixedly connected to the inner wall of the rotating ring. The side of the strip closest to the rotating block is slidably connected to the outer surface of the rotating block. The top of the vertical plate is fixedly connected to the lower surface of the square tube. The push plate can push the strip to slide along the inner wall of the square tube, and the strip is slidably connected to the outer surface of the rotating block during sliding, and can push the rotating block to rotate.

[0007] Furthermore, the shaking mechanism includes a support shell, an inner cylinder fixedly connected to the bottom of the inner wall of the support shell, a fixed shaft fixedly connected to the inner surface of the inner cylinder, a glass rod rotatably connected to the outer surface of the fixed shaft, telescopic rods fixedly connected to both sides of the inner wall of the support shell, a clamping box fixedly connected to the end of the telescopic rod away from the support shell, an adjusting component slidably connected to the inner wall of the clamping box, and a groove formed on the side of the clamping box away from the telescopic rod. The telescopic rod can drive the movement of the clamping box. The inner wall of the support shell is provided with two clamping boxes and telescopic rods, which can complete the fixation of conical flasks and cylindrical flasks. The pressure plate can be attached to the outer surface of the titration container to assist in fixing the titration container. The U-shaped plate contacts the outer surface of the container and slides along the inner wall of the clamping box. The container is placed on the upper surface of the glass rod.

[0008] Furthermore, a rubber rod is fixedly connected to the inner wall of the groove, a pressure plate is fixedly connected to the bottom end of the rubber rod, and a rotating shaft is fixedly connected to the inner wall of the pressure plate. The pressure plate can rotate appropriately around the outer surface of the rotating shaft.

[0009] Furthermore, the side of the support shell near the connecting rod is fixedly connected to the bottom end of the connecting rod, and both ends of the rotating shaft are rotatably connected to the inner wall of the groove.

[0010] Furthermore, the adjusting component includes a U-shaped plate with a groove on its inner wall. A spring band is fixedly connected to the outer surface of the U-shaped plate, and a connecting plate is slidably connected to the inner wall of the U-shaped plate. A bent rod is fixedly connected to the upper surface of the connecting plate, and a fitting rod is fixedly connected to the top of the bent rod. A fixing box is movably connected to the side of the fitting rod away from the connecting plate. A tension spring is fixedly connected to the inner wall of the fixing box, and a pressure measuring component is fixedly connected to the upper surface of the fixing box. The U-shaped plate can slide along the inner wall of the clamping box, while the groove also limits the movement of the outer surface of the connecting plate.

[0011] Furthermore, the U-shaped plate is slidably connected to the inner wall of the clamping box, the slide groove is slidably connected to the outer surface of the connecting plate, the side of the spring band away from the U-shaped plate is fixedly connected to the inner wall of the clamping box, both ends of the bent rod are rotatably connected to the inner wall of the clamping box, and the end of the tension spring away from the fixed box is fixedly connected to the inner wall of the bonding rod. Since both ends of the bent rod are rotatably connected to the inner wall of the clamping box, the bent rod can also drive the bonding rod to rotate. When the bonding rod and the bent rod rotate towards one side of the container, the bonding rod will disengage from the inner wall of the fixed box.

[0012] Furthermore, the pressure measuring component includes a limiting cylinder, with a pull rope slidably connected to the inner wall of the limiting cylinder. A sliding rod is fixedly connected to the end of the pull rope away from the bonding rod, and a compression spring is fixedly connected to the side of the sliding rod closest to the pull rope. An annular pressure sensor is fixedly connected to the end of the compression spring away from the sliding rod. During rotation, the bonding rod can be moved along the inner wall of the cylinder by pulling the sliding rod via the pull rope. The annular pressure sensor is used to measure the compressive force exerted by the compression spring on itself.

[0013] Furthermore, the end of the pull rope away from the slide bar is fixedly connected to the inner wall of the fitting bar, the outer surface of the slide bar is slidably connected to the inner wall of the limiting cylinder, and the outer surface of the annular pressure sensor is fixed to the inner wall of the limiting cylinder.

[0014] The beneficial effects of this invention are as follows:

[0015] 1. The ring rod can drive the fixed tube clamp to adjust its angle, and cooperate with the telescopic arm to allow the fixed tube clamp to flexibly adjust the position of the burette according to the user's needs, making it easy to move the burette directly above the container, which is beneficial for titration experiments. At the same time, the fixed clamp can quickly fix the entire device to an object on the production site, making it easy for the operator to quickly place larger containers on the upper surface of the glass rod, reducing the time spent placing the container bottle, and also making it easier for the user to adjust to a suitable angle for titration, without the problems of placement, use and observation caused by poor angle.

[0016] 2. This device uses a telescopic rod and clamping box to fix and shake containers, replacing manual shaking and avoiding hand pain caused by prolonged manual shaking. For containers with sloping surfaces, the pressure plate, supported by rubber rods, can further tighten around the outer surface of containers of different shapes, increasing the contact area. This avoids the problems of unstable fixing and poor shaking effect that can occur with traditional fixing devices when dealing with sloping containers due to the smaller fixing surface area.

[0017] 3. During the left-right shaking of the container bottle, the device has multiple rotating glass rods at the bottom of the container bottle. On the one hand, this provides support for the container bottle and facilitates its sliding. On the other hand, the rotation of the glass rods prevents the bottom of the container bottle from being worn due to friction with other objects during the sliding process.

[0018] 4. After rotating to a certain angle, the bonding rod can adhere to the outer surface of the conical or cylindrical container. During the rotation of the bonding rod, the annular pressure sensor will also sense the pressure from the sliding rod and the compression spring. By measuring the pressure by the rotation angle of the bonding rod, the shaking amplitude of the telescopic rod on the container can be adjusted. This avoids the problem of containers with small gaps shaking too much during the process, causing the titrant to stick to the container wall and affecting the accuracy of the titration results; and avoids the problem of containers with large gaps shaking too little during the process, causing uneven shaking of the titrant inside the container, resulting in the titrant inside the container not being able to mix effectively.

[0019] 5. After the rotating ring and ring cylinder have adjusted the position of the burette, the strip plate allows the rotating block to rotate around the outer surface of the support rod during retraction, thus contacting the inner wall of the ring groove. This prevents the burette inside the rotating ring and fixed clamp from rotating around the outer surface of the ring cylinder. This avoids the problem of the burette shifting from the container below due to improper operation when the user is holding the burette for dispensing, causing the titrant to not fall accurately into the center of the container and instead appear on the inner wall of the container, further affecting the titration effect. Attached Figure Description

[0020] Figure 1 This is the front view of the present invention;

[0021] Figure 2 This is a schematic diagram of the structure of the active mechanism of the present invention;

[0022] Figure 3 This is a schematic diagram of the annular groove of the present invention;

[0023] Figure 4 This is a schematic diagram of the rotating block of the present invention;

[0024] Figure 5 This is a schematic diagram of the structure of the support shell of the present invention;

[0025] Figure 6 This is the present invention. Figure 5 Enlarged structural diagram at point A;

[0026] Figure 7 This is a schematic diagram of the structure of the adjusting component of the present invention;

[0027] Figure 8This is a schematic diagram of the pressure measuring component of the present invention.

[0028] In the diagram: 1. Fixed clamp; 2. Bearing plate; 3. Ring rod; 4. Movable mechanism; 41. Ring cylinder; 42. Ring groove; 43. Rotating ring; 44. Push spring; 45. Push plate; 46. Strip plate; 47. Square tube; 48. Support rod; 49. Rotating block; 401. Reset rod; 402. Vertical plate; 5. Telescopic arm; 6. L-shaped rod; 7. Fixed pipe clamp; 8. Connecting rod; 9. Shaking mechanism; 91. Support shell; 92. Inner cylinder; 93. Fixed shaft; 94. Glass rod; 95. 96. Telescopic rod; 97. Clamping box; 98. Adjusting component; 99. U-shaped plate; 90. Slide groove; 91. Spring belt; 92. Connecting plate; 93. Bent bar; 94. Adhesive bar; 95. Fixing box; 96. Tension spring; 977. Pressure measuring component; 98. Limiting cylinder; 99. Pull rope; 90. Slide bar; 91. Compression spring; 92. Ring pressure sensor; 93. Groove; 94. Rubber rod; 15. Pressure plate; 16. Rotating shaft. Detailed Implementation

[0029] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the invention to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described to better illustrate the principles and practical application of the invention, and to enable those skilled in the art to understand the invention and design various embodiments with various modifications suitable for a particular purpose.

[0030] Example 1, please refer to Figures 1-4 This invention provides a technical solution: a dual-purpose universal titration stand, comprising a fixing clamp 1, one end of which is fixedly connected to a support plate 2, an annular rod 3 rotatably connected to the inner wall of the support plate 2, a movable mechanism 4 fixedly connected to the outer surface of the annular rod 3, a telescopic arm 5 fixedly connected to the side of the movable mechanism 4 away from the annular rod 3, an L-shaped rod 6 fixedly connected to the end of the telescopic arm 5 away from the movable mechanism 4, a fixing tube clamp 7 fixedly connected to the side of the L-shaped rod 6 away from the telescopic arm 5, a connecting rod 8 fixedly connected to the bottom of the support plate 2, and a shaking mechanism 9 fixedly connected to the bottom end of the connecting rod 8; the fixing clamp 1 can be clamped onto a fixed object in the production site, and the telescopic arm 5 can drive the L-shaped stand and the fixing tube clamp 7 to telescopically move;

[0031] The active mechanism 4 includes a ring cylinder 41, the inner wall of which is provided with a ring groove 42. A rotating ring 43 is rotatably connected to the inner surface of the ring cylinder 41. A push spring 44 is fixedly connected to the inner wall of the rotating ring 43. A push plate 45 is fixedly connected to the end of the push spring 44 away from the rotating ring 43. A strip plate 46 is fixedly connected to the side of the push plate 45 close to the push spring 44. A square tube 47 is slidably connected to the outer surface of the strip plate 46.

[0032] A support rod 48 is fixedly connected to the inner wall of the square tube 47. A rotating block 49 is rotatably connected to the outer surface of the support rod 48. A reset rod 401 is fixedly connected to the side of the rotating block 49 away from the strip 46. A vertical plate 402 is fixedly connected to the bottom end of the reset rod 401. The side of the ring cylinder 41 away from the telescopic arm 5 is fixedly connected to the outer surface of the ring rod 3. The outer surface of the square tube 47 is fixedly connected to the inner wall of the rotating ring 43. The side of the strip 46 near the rotating block 49 is slidably connected to the outer surface of the rotating block 49. The top of the vertical plate 402 is fixedly connected to the lower surface of the square tube 47. The push plate 45 can push the strip 46 to slide along the inner wall of the square tube 47. During the sliding, the strip 46 is slidably connected to the outer surface of the rotating block 49 and can push the rotating block 49 to rotate.

[0033] In use, to facilitate direct testing on the production site, the entire device can be fixed to the outer surface of a relatively stable rod-shaped object at the production site using the fixing clamp 1. The ring rod 3 can drive the movable mechanism 4, the telescopic arm 5, the L-shaped rod 6, and the fixing clamp 7 to rotate vertically. The rotating ring 43 can rotate horizontally around the outer surface of the ring cylinder 41, together achieving the omnidirectional movement of the fixing clamp 7. The fixing clamp 7 can hold the burette, and with the extension and retraction of the telescopic arm 5, the burette nozzle is moved to directly above the center of the container bottle nozzle. After the container bottle below is fixed by the shaking mechanism 9, the user can hold the burette for titration.

[0034] Before the rotating ring 43 rotates around the ring cylinder 41, the user needs to press the push plate 45 towards the side closer to the push spring 44. The push plate 45 can drive the strip 46 to slide along the inner wall of the square tube 47 into the rotating ring 43. During the sliding process of the strip 46, the side of the strip 46 away from the push plate 45 will slide against the side of the rotating block 49 away from the reset rod 401. Since the strip 46 slides towards the side closer to the rotating block 49, the part of the strip 46 that contacts the rotating block 49 is far from the support. As the support rod 48 gets closer, the rotating block 49, pressed by the strip 46, will rotate along the outer surface of the support rod 48 and rotate towards the side closer to the reset rod 401, pressing the reset rod 401. The rotating block 49 gradually moves closer to the vertical plate 402, and the side of the rotating block 49 closest to the strip 46 will disengage from the annular groove 42. At this time, the entire rotating ring 43, the telescopic arm 5, and the fixed pipe clamp 7 can rotate along the outer surface of the ring cylinder 41, adjusting the fixed pipe clamp 7 and the container bottle to a suitable angle.

[0035] When the rotating ring 43 drives the fixed tube clamp 7 to move around the ring cylinder 41 to a suitable angle and stops moving, the user no longer squeezes the push plate 45. Under the elasticity of the pushing spring 44, the push plate 45 moves and resets to the side away from the square tube 47. At the same time, it can drive the strip plate 46 to move away from the rotating block 49. The contact part between the outer surface of the strip plate 46 and the rotating block 49 is further and further away from the support rod 48. Under the elasticity of the reset rod 401, the rotating block 49 rotates around the support rod 48 until the side of the rotating block 49 close to the strip plate 46 contacts the surface of the ring groove 42. That is, the upper and lower rotating blocks 49 press the ring groove 42 tightly, so that the entire rotating ring 43 cannot be rotated and adjusted due to the cooperation of the rotating block 49 and the ring groove 42, thus achieving locking. This avoids the situation where the fixed tube clamp 7 causes the burette to shift position due to the user touching the burette when fixing it, which could further cause the burette to contact the inner wall of the container bottle.

[0036] Example 2, please refer to Figures 1-8This invention provides a technical solution: Based on Embodiment 1, the shaking mechanism 9 includes a support shell 91. An inner cylinder 92 is fixedly connected to the bottom of the inner wall of the support shell 91. A fixed shaft 93 is fixedly connected to the inner surface of the inner cylinder 92. A glass rod 94 is rotatably connected to the outer surface of the fixed shaft 93. Telescopic rods 95 are fixedly connected to both sides of the inner wall of the support shell 91. A clamping box 96 is fixedly connected to the end of the telescopic rod 95 away from the support shell 91. An adjusting component 97 is slidably connected to the inner wall of the clamping box 96. A groove 98 is provided on the side of the clamping box 96 away from the telescopic rod 95. The telescopic rod 95 can drive the movement of the clamping box 96. The inner wall of the support shell 91 is provided with two clamping boxes 96 and telescopic rods 95, which can complete the fixation of conical flasks and cylindrical flasks. The pressure plate 100 can be attached to the outer surface of the titration container to assist in fixing the titration container. The U-shaped plate 971 contacts the outer surface of the container and slides along the inner wall of the clamping box 96. The container bottle is placed on the upper surface of the glass rod 94. The pressure plate 100 is made of rubber.

[0037] A rubber rod 99 is fixedly connected to the inner wall of the groove 98, and a pressure plate 100 is fixedly connected to the bottom end of the rubber rod 99. A rotating shaft 101 is fixedly connected to the inner wall of the pressure plate 100. The pressure plate 100 can rotate appropriately around the outer surface of the rotating shaft 101.

[0038] The adjusting component 97 includes a U-shaped plate 971. A groove 972 is formed on the inner wall of the U-shaped plate 971. A spring band 973 is fixedly connected to the outer surface of the U-shaped plate 971. A connecting plate 974 is slidably connected to the inner wall of the U-shaped plate 971. A bent rod 975 is fixedly connected to the upper surface of the connecting plate 974. A fitting rod 976 is fixedly connected to the top of the bent rod 975. A fixing box 977 is movably connected to the side of the fitting rod 976 away from the connecting plate 974. A tension spring 978 is fixedly connected to the inner wall of the fixing box 977. A pressure measuring component 979 is fixedly connected to the upper surface of the fixing box 977. The U-shaped plate 971 can slide along the inner wall of the clamping box 96, while the groove 972 also limits the movement of the outer surface of the connecting plate 974.

[0039] The U-shaped plate 971 is slidably connected to the inner wall of the clamping box 96, the slide groove 972 is slidably connected to the outer surface of the connecting plate 974, the side of the spring band 973 away from the U-shaped plate 971 is fixedly connected to the inner wall of the clamping box 96, both ends of the bent rod 975 are rotatably connected to the inner wall of the clamping box 96, and the end of the tension spring 978 away from the fixed box 977 is fixedly connected to the inner wall of the bonding rod 976. Since both ends of the bent rod 975 are rotatably connected to the inner wall of the clamping box 96, the bent rod 975 can also drive the bonding rod 976 to rotate. When the bonding rod 976 and the bent rod 975 rotate towards the container side, the bonding rod 976 will disengage from the inner wall of the fixed box 977.

[0040] In use, place the titration container that needs to hold the solution on the upper surface of the bottom of the inner wall of the support shell 91, that is, on the upper surface of the glass rod 94. Adjust the position of the container appropriately so that the center of the container is in the same position as the center of the two clamping boxes 96. After the container position is adjusted, activate the telescopic rod 95. The extension of the telescopic rod 95 can drive the clamping box 96 to move. Therefore, the two clamping boxes 96 can initially fix the left and right sides of the container as they approach each other.

[0041] During the initial fixation of the left and right sides of the container by the two clamping boxes 96, the left and right sides of the container can also compress the pressure plate 100. When the container is a cylindrical flask, both sides of the cylindrical flask are vertical surfaces. The outer surface of the container can push the pressure plate 100 to rotate along the outer surface of the fixing rod. During rotation, the pressure plate 100 compresses the rubber rod 99 until the pressure plate 100 is wrapped into the inner wall of the groove 98. When the container is a conical flask, and the top opening of the conical flask is missing, making fixation impossible, the inclined surfaces on both sides of the conical flask will be fixed. Since the contact area between the clamping box 96 and the conical flask is small, the pressure plate 100 is provided. The conical flask will also compress the pressure plate 100, but part of the pressure plate 100 will adhere to the outer surface of the conical flask under the elasticity of the rubber rod 99, thus achieving auxiliary fixation of the inclined surface of the conical flask. That is, the rotation and adhesion effect of the pressure plate 100 can achieve the clamping of the container according to different shapes. To avoid the problem of insufficient clamping area and unsatisfactory clamping effect when the surface of the container is inclined when clamping the container, the clamping box 96 is used.

[0042] With the assistance of the clamping box 96 and the pressure plate 100, the two telescopic rods 95 extend and retract, and the container bottle can be moved back and forth by the clamping box 96, replacing the manual shaking of the container bottle left and right.

[0043] During the shaking of the container, the bottom of the container bottle is in contact with the glass rod 94. Therefore, as the container moves left and right, it slides left and right along the surface of the glass rod 94, causing the glass rod 94 to rotate around the outer surface of the fixed shaft 93. On the one hand, the glass rod 94 provides support for the bottom of the container bottle. On the other hand, the rotation of the glass rod 94 facilitates the sliding of the bottom of the container bottle, and prevents the bottom of the container bottle from being worn due to friction.

[0044] During the clamping process of the clamping box 96 clamping the container, the U-shaped plate 971 will contact the two sides of the container in the same direction and push the U-shaped plate 971 to slide along the inner wall of the clamping box 96. During the sliding process, the U-shaped plate 971 will stretch the spring band 973. The inner wall of the U-shaped plate 971 is provided with a groove 972. When the U-shaped plate 971 moves away from the spring band 973, the contact area between the groove 972 and the bent rod 975 will gradually decrease. At this time, the bonding rod 976 will be pushed by the tension spring 978 inside the fixing box 977, which will drive the bent rod 975 to rotate appropriately around the inner wall of the clamping box 96. The bonding rod 976 rotates on the side away from the pull rope 9792.

[0045] The pressure measuring component 979 includes a limiting cylinder 9791. A pull rope 9792 is slidably connected to the inner wall of the limiting cylinder 9791. A sliding rod 9793 is fixedly connected to the end of the pull rope 9792 away from the bonding rod 976. A compression spring 9794 is fixedly connected to the side of the sliding rod 9793 near the pull rope 9792. An annular pressure sensor 9795 is fixedly connected to the end of the compression spring 9794 away from the sliding rod 9793. During rotation, the bonding rod 976 can move the sliding rod 9793 along the inner wall of the cylinder by pulling the pull rope 9792. The annular pressure sensor 9795 is used to measure the compressive force exerted by the compression spring 9794 on itself.

[0046] The end of the pull rope 9792 away from the slide bar 9793 is fixedly connected to the inner wall of the fitting bar 976. The outer surface of the slide bar 9793 is slidably connected to the inner wall of the limiting cylinder 9791. The outer surface of the annular pressure sensor 9795 is fixed to the inner wall of the limiting cylinder 9791.

[0047] During use, when the bonding rod 976 rotates, if the container is a cylindrical flask, the bonding rod 976 will only rotate a small angle under the push of the tension spring 978 to contact the outer surface of the container. At the same time, the bonding rod 976 will pull the pull rope 9792 to slide along the inside of the limiting cylinder 9791 during rotation. The pull rope 9792 will also drive the slide bar 9793 to slide. The slide bar 9793 will slide towards the side closer to the annular pressure sensor 9795 and compress the compression spring 9794. The compression force will be transmitted to the annular pressure sensor 9795. The size of the container opening is determined by detecting the pressure by the annular pressure sensor 9795. Since both sides of the cylindrical flask are vertical and the angle of rotation of the fitting rod 976 is very small, the pressure sensed by the annular pressure sensor 9795 is very small, indicating that the opening of the titration container is large. Therefore, the annular pressure sensor 9795 senses the pressure and transmits the signal to the external controller, which controls the extension and retraction of the two telescopic rods 95. This allows for a relatively large back-and-forth shaking of the cylindrical flask, making the titrant inside the container shake evenly.

[0048] When the container is a conical flask, the fitting rod 976 will rotate at a large angle under the push of the tension spring 978 and come into contact with the outer surface of the container. Similarly, the fitting rod 976 pulls the movement of the pull rope 9792 and the slider 9793. At this time, the slider 9793 will compress the compression spring 9794 to a large extent. The ring pressure sensor 9795 will detect the large pressure and transmit the signal to the outside, judging that the opening of the container is small, and further control the extension and retraction of the two telescopic rods 95. Therefore, the conical flask can be shaken back and forth with a relatively small amplitude to avoid the mouth of the conical flask from contacting the outer surface of the burette, which would cause the titrant to stick to the inner wall of the container.

[0049] After titration is completed and the container bottle is removed, the U-shaped plate 971, no longer under the pressure of the container bottle, will reset under the elasticity of the spring band 973. At the same time, as the U-shaped plate 971 slides along the inner wall of the clamping box 96 during reset, the groove 972 on the inner wall of the U-shaped plate 971 can drive the connecting plate 974 and the bent rod 975 to reset and rotate. The bent rod 975 will then drive the bonding rod 976 to rotate and reset and rest against the inner wall of the fixing box 977 again. The bonding rod 976 is made of rubber.

[0050] The specific work process is as follows:

[0051] First, the entire device is fixed to an object on the production site using the fixing clamp 1 to ensure stability. Then, the rotating ring 43 is rotated around the outer surface of the ring cylinder 41. At the same time, the extension and retraction distance of the fixing clamp 7 is adjusted according to the extension and retraction of the telescopic arm 5 to ensure that the upper fixing clamp 7 and the center of the lower support shell 91 are kept in a vertical line. The burette is fixed by the fixing clamp 7, and the container that needs to hold the titrant is placed at the center of the bottom of the inner wall of the support shell 91 to facilitate subsequent titration by the burette.

[0052] Once the burette and container are in the correct position, the rotating ring 43 is locked to the ring cylinder 41, preventing the rotating ring 43 from rotating and thus avoiding displacement of the burette due to the user's grip. The container is initially secured by the cooperation of the telescopic rod 95 and the clamping box 96, and then further secured by the rotation of the pressure plate 100. The extension and retraction of the two telescopic rods 95 allows for shaking of the container.

[0053] By cooperating with the U-shaped plate 971 and the adjusting component 97, the bonding rod 976 is bonded to the outer surface of the container, thereby controlling the shaking amplitude of the telescopic rod 95 on the container and making appropriate adjustments according to the size ratio of different openings.

[0054] Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. All other embodiments obtained by those skilled in the art and related fields based on the embodiments of the present invention without inventive effort should fall within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described and explained in the present invention, unless otherwise specified or limited, shall be implemented according to conventional means in the art.

Claims

1. A dual-purpose universal titration holder, comprising a fixing clip (1), characterized in that: One end of the fixed clamp (1) is fixedly connected to a bearing plate (2), and an annular rod (3) is rotatably connected to the inner wall of the bearing plate (2). An movable mechanism (4) is fixedly connected to the outer surface of the annular rod (3). A telescopic arm (5) is fixedly connected to the side of the movable mechanism (4) away from the annular rod (3). An L-shaped rod (6) is fixedly connected to the end of the telescopic arm (5) away from the movable mechanism (4). A fixed pipe clamp (7) is fixedly connected to the side of the L-shaped rod (6) away from the telescopic arm (5). A connecting rod (8) is fixedly connected to the bottom of the bearing plate (2). A rocking mechanism (9) is fixedly connected to the bottom end of the connecting rod (8). The active mechanism (4) includes a ring cylinder (41), the inner wall of which is provided with a ring groove (42), a rotating ring (43) is rotatably connected to the inner surface of the ring cylinder (41), a push spring (44) is fixedly connected to the inner wall of the rotating ring (43), a push plate (45) is fixedly connected to the end of the push spring (44) away from the rotating ring (43), a strip plate (46) is fixedly connected to the side of the push plate (45) close to the push spring (44), and a square tube (47) is slidably connected to the outer surface of the strip plate (46). A support rod (48) is fixedly connected to the inner wall of the square tube (47). A rotating block (49) is rotatably connected to the outer surface of the support rod (48). A reset rod (401) is fixedly connected to the side of the rotating block (49) away from the strip (46). A vertical plate (402) is fixedly connected to the bottom end of the reset rod (401). The side of the ring cylinder (41) away from the telescopic arm (5) is fixedly connected to the outer surface of the ring rod (3). The outer surface of the square tube (47) is fixedly connected to the inner wall of the rotating ring (43). The side of the strip (46) close to the rotating block (49) is slidably connected to the outer surface of the rotating block (49). The top of the vertical plate (402) is fixedly connected to the lower surface of the square tube (47).

2. The dual-purpose universal titration stand according to claim 1, characterized in that: The shaking mechanism (9) includes a support shell (91), an inner cylinder (92) is fixedly connected to the bottom of the inner wall of the support shell (91), a fixed shaft (93) is fixedly connected to the inner surface of the inner cylinder (92), a glass rod (94) is rotatably connected to the outer surface of the fixed shaft (93), telescopic rods (95) are fixedly connected to both sides of the inner wall of the support shell (91), a clamping box (96) is fixedly connected to the end of the telescopic rod (95) away from the support shell (91), an adjusting component (97) is slidably connected to the inner wall of the clamping box (96), and a groove (98) is provided on the side of the clamping box (96) away from the telescopic rod (95).

3. The dual-purpose universal titration stand according to claim 2, characterized in that: A rubber rod (99) is fixedly connected to the inner wall of the groove (98), a pressure plate (100) is fixedly connected to the bottom end of the rubber rod (99), and a rotating shaft (101) is fixedly connected to the inner wall of the pressure plate (100).

4. A dual-purpose universal titration stand according to claim 3, characterized in that: The support shell (91) is fixedly connected to the bottom end of the connecting rod (8) on the side near the connecting rod (8), and both ends of the rotating shaft (101) are rotatably connected to the inner wall of the groove (98).

5. A dual-purpose universal titration stand according to claim 2, characterized in that: The adjusting component (97) includes a U-shaped plate (971), the inner wall of which is provided with a groove (972), a spring band (973) is fixedly connected to the outer surface of the U-shaped plate (971), a connecting plate (974) is slidably connected to the inner wall of the U-shaped plate (971), a bent rod (975) is fixedly connected to the upper surface of the connecting plate (974), a fitting rod (976) is fixedly connected to the top of the bent rod (975), a fixed box (977) is movably connected to the side of the fitting rod (976) away from the connecting plate (974), a tension spring (978) is fixedly connected to the inner wall of the fixed box (977), and a pressure measuring component (979) is fixedly connected to the upper surface of the fixed box (977).

6. A dual-purpose universal titration stand according to claim 5, characterized in that: The U-shaped plate (971) is slidably connected to the inner wall of the clamping box (96), the slide groove (972) is slidably connected to the outer surface of the connecting plate (974), the side of the spring band (973) away from the U-shaped plate (971) is fixedly connected to the inner wall of the clamping box (96), both ends of the bent rod (975) are rotatably connected to the inner wall of the clamping box (96), and the end of the tension spring (978) away from the fixed box (977) is fixedly connected to the inner wall of the fitting rod (976).

7. A dual-purpose universal titration stand according to claim 6, characterized in that: The pressure measuring component (979) includes a limiting cylinder (9791), a pull rope (9792) is slidably connected to the inner wall of the limiting cylinder (9791), a slide bar (9793) is fixedly connected to the end of the pull rope (9792) away from the fitting bar (976), a compression spring (9794) is fixedly connected to the side of the slide bar (9793) close to the pull rope (9792), and an annular pressure sensor (9795) is fixedly connected to the end of the compression spring (9794) away from the slide bar (9793).

8. A dual-purpose universal titration stand according to claim 7, characterized in that: The end of the pull rope (9792) away from the slide bar (9793) is fixedly connected to the inner wall of the fitting bar (976), the outer surface of the slide bar (9793) is slidably connected to the inner wall of the limiting cylinder (9791), and the outer surface of the annular pressure sensor (9795) is fixed to the inner wall of the limiting cylinder (9791).

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