Titration device for environmental protection detection

Abstract

The titration device comprises a fixed frame, a movable screw rod is arranged on the fixed frame through a driving motor, a movable block is arranged on the movable screw rod in a threaded and sleeved mode, a movable frame is arranged on the movable block, two movable grooves are formed in the inner bottom wall of the movable frame, and the movable groove is arranged in the fixed frame. An adjusting double-thread screw is jointly and rotationally arranged in the two moving grooves, a transmission shaft is rotationally arranged on the moving frame through a torsion spring, and the transmission shaft is connected with the adjusting double-thread screw and connected with the fixed frame through a transmission mechanism. According to the utility model, by arranging the movable screw rod, the movable block, the adjusting double-thread screw rod, the clamping plate and other components, the automatic moving, automatic clamping and automatic clamping and fixing releasing operations of the burette are realized, the test tube can be conveniently taken and placed, and the titration operation is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of environmental protection detection equipment, in particular to a titration device for environmental protection detection. Background Art

[0002] Environmental protection, or environmental protection, is the act of protecting the natural environment for the benefit of nature and human well-being at the individual, organizational or governmental level. Currently, titration is a chemical experimental operation that involves dropping certain solutions into a laboratory bottle containing other solutions to mix the two solutions to form a reaction, and is used to detect pollution and other situations.

[0003] When titrating samples, it is usually done manually, placing the dropping bottle under the burette one by one to drop the liquid, which is time-consuming and laborious. After multiple titration operations, the staff's arms are prone to fatigue, which will affect the staff's subsequent titration. In order to deal with this technical problem and free the operator's hands to improve the convenience of titration, a titration device for environmental protection detection is proposed. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a titration device for environmental protection detection.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A titration device for environmental protection detection comprises a fixed frame, a movable screw is provided on the fixed frame through a driving motor, a movable block is provided on the movable screw through a thread sleeve, a movable frame is provided on the movable block, two movable grooves are provided on the inner bottom wall of the movable frame, an adjusting double-headed screw is provided in the two movable grooves for common rotation, a transmission shaft is provided on the movable frame for rotation through a torsion spring, the transmission shaft is connected to the adjusting double-headed screw and is connected to the fixed frame through a transmission mechanism, an adjusting plate is provided on the adjusting double-headed screw through a thread sleeve, a clamping plate is installed on the adjusting plate, a test tube is provided between the two clamping plates, and a burette is provided on the fixed frame through a supporting mechanism.

[0007] Preferably, the transmission mechanism comprises a gear mounted on the end of the transmission shaft, and a rack matching the gear is mounted on the upper end surface of the fixed frame.

[0008] Preferably, the supporting mechanism comprises a fixing frame arranged on the upper end surface of the fixing frame, and a telescopic cylinder connected to the burette is provided on the fixing frame.

[0009] Preferably, a first cross bar is provided in the fixed frame, the first cross bar is parallel to the moving screw, and the first cross bar slides through the moving block.

[0010] Preferably, a second cross bar is provided in each of the two movable grooves, the second cross bar is parallel to the adjusting double-headed screw, and the second cross bar slides through the adjusting plate.

[0011] Preferably, a protective pad is provided on the surface of the clamping plate in contact with the outer wall of the test tube, and the protective pad is made of rubber.

[0012] Beneficial effects of the utility model:

[0013] 1. By setting components such as moving screw, moving block, adjusting double-head screw and clamping plate, the automatic movement, automatic clamping and automatic unclamping of the burette are realized, which facilitates the taking and placing of the test tube and the titration operation.

[0014] 2. By setting the transmission shaft, torsion spring, gear and rack, the automatic clamping and contact clamping fixation of the clamping plate are carried out synchronously with its movement, thus ensuring the linkage of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of a titration device for environmental protection detection proposed by the utility model;

[0016] Figure 2 It is a schematic diagram of the structure of the components such as the adjusting double-headed screw and the moving frame;

[0017] Figure 3 It is a schematic diagram of the vertical section structure of components such as the transmission shaft and the moving frame;

[0018] Figure 4 for Figure 3 A schematic diagram of the enlarged structure of .

[0019] In the figure: 1 fixed frame, 2 driving motor, 3 moving block, 4 moving frame, 5 test tube, 6 fixed frame, 7 telescopic cylinder, 8 burette, 9 rack, 10 moving screw, 11 first cross bar, 12 transmission shaft, 13 gear, 14 moving slot, 15 adjusting double-headed screw, 16 adjusting plate, 17 clamping plate, 18 second cross bar. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0021] Reference Figure 1-4A titration device for environmental protection detection includes a fixed frame 1, a moving screw 10 is provided on the fixed frame 1 through a driving motor 2, a moving block 3 is threadedly sleeved on the moving screw 10, a moving frame 4 is provided on the moving block 3, two moving grooves 14 are provided on the inner bottom wall of the moving frame 4, and an adjusting double-headed screw 15 is rotated together in the two moving grooves 14, a transmission shaft 12 is rotated on the moving frame 4 through a torsion spring, the transmission shaft 12 is connected to the adjusting double-headed screw 15 and is connected to the fixed frame 1 through a transmission mechanism, an adjusting plate 16 is threadedly sleeved on the adjusting double-headed screw 15, a clamping plate 17 is installed on the adjusting plate 16, a test tube 5 is provided between the two clamping plates 17, and a burette 8 is provided on the fixed frame 1 through a supporting mechanism.

[0022] The transmission mechanism includes a gear 13 installed on the end of the transmission shaft 12, and a rack 9 that cooperates with the gear 13 is installed on the upper end surface of the fixed frame 1. When the gear 13 follows the transmission shaft 12 and other components to move to a certain position, the gear 13 will engage with the rack 9, and rotate during the subsequent movement process and drive the transmission shaft 12 to rotate.

[0023] The supporting mechanism includes a fixing frame 6 arranged on the upper end surface of the fixing frame 1, and a telescopic cylinder 7 connected to a burette 8 is provided on the fixing frame 6. The fixing frame 6 realizes the support of the telescopic cylinder 7. An opening for replenishing materials is provided on the outer wall of the burette 8, and a piston is provided in the opening. A discharge port is provided on the bottom wall of the burette 8, and a valve is provided in the discharge port. The above components are all common equipment components in the prior art and will not be described in detail here.

[0024] A first cross bar 11 is provided in the fixed frame 1, and the first cross bar 11 is parallel to the moving screw 10. The first cross bar 11 slides through the moving block 3. Preferably, a second cross bar 18 is provided in each of the two moving grooves 14, and the second cross bar 18 is parallel to the adjusting double-headed screw 15. The second cross bar 18 slides through the adjusting plate 16. The above-mentioned first cross bar 11 and second cross bar 18 both play a limiting role, which is used to realize the limiting of the moving block 3 and the adjusting plate 16, and effectively prevent them from rotating with the moving screw 10 and the adjusting double-headed screw 15.

[0025] A protective pad is provided on the surface of the clamping plate 17 that contacts the outer wall of the test tube 5 . The protective pad is made of rubber material. The rubber protective pad protects the outer wall of the test tube 5 and prevents the clamping plate 17 from causing damage to the test tube 5 .

[0026] When the utility model is used, in the initial state, the moving block 3 and other components are at one end of the fixed frame 1 (the end close to the driving motor 2), at this time the gear 13 is meshed with the rack 9, the two clamping plates 17 are in a distanced state, the test tube 5 is placed in the moving frame 4, and then the driving motor 2 is started, the driving motor 2 drives the moving screw 10 to rotate, when the moving screw 10 rotates, the moving block 3 drives the moving frame 4 and other components to move close to the burette 8, and as the moving gear 13 first meshes with the rack 9, it drives the adjusting double-headed screw 15 to rotate and The clamping plate 17 never contacts the outer wall of the test tube 5. After it is separated from the rack 9, the transmission shaft 12 drives the adjusting double-headed screw 15 to rotate under the action of the torsion spring, so that the clamping plate 17 clamps the test tube 5 to ensure its stability. It follows the moving block 3 and other components and finally moves to the bottom of the burette 8, thereby opening the valve for titration operation. After the titration is completed, the driving motor 2 reverses to move the above components to reset. When resetting, the clamping plate 17 will contact the test tube 5 to facilitate its removal and the next round of placement.

[0027] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A titration device for environmental testing, comprising a fixing frame (1), characterized in that: The fixed frame (1) is provided with a moving screw (10) through a driving motor (2), a moving block (3) is threadedly sleeved on the moving screw (10), a moving frame (4) is provided on the moving block (3), two moving grooves (14) are provided on the inner bottom wall of the moving frame (4), an adjusting double-headed screw (15) is rotatably arranged in the two moving grooves (14), a transmission shaft (12) is rotatably arranged on the moving frame (4) through a torsion spring, the transmission shaft (12) is connected to the adjusting double-headed screw (15) and is connected to the fixed frame (1) through a transmission mechanism, an adjusting plate (16) is threadedly sleeved on the adjusting double-headed screw (15), a clamping plate (17) is mounted on the adjusting plate (16), a test tube (5) is provided between the two clamping plates (17), and a burette (8) is provided on the fixed frame (1) through a supporting mechanism.

2. The environmental protection detection titration device according to claim 1, characterized in that: The transmission mechanism comprises a gear (13) mounted on the end of a transmission shaft (12), and a rack (9) matching the gear (13) is mounted on the upper end surface of the fixed frame (1).

3. A titration device for environmental detection according to claim 2, characterized in that: The support mechanism comprises a fixing frame (6) arranged on the upper end surface of the fixing frame (1), and a telescopic cylinder (7) connected to a burette (8) is provided on the fixing frame (6).

4. The titration device for environmental detection according to claim 3, characterized in that: A first crossbar (11) is provided in the fixed frame (1), the first crossbar (11) is parallel to the moving screw rod (10), and the first crossbar (11) slides through the moving block (3).

5. The titration device for environmental detection according to claim 4, characterized in that: A second cross bar (18) is provided in each of the two movable grooves (14); the second cross bar (18) is parallel to the adjusting double-headed screw (15); and the second cross bar (18) slides through the adjusting plate (16).

6. The titration device for environmental detection according to claim 5, characterized in that: A protective pad is provided on the surface of the clamping plate (17) that contacts the outer wall of the test tube (5), and the protective pad is made of rubber.

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