Burette clamp with anti-falling function

Abstract

The utility model discloses a burette clamp with an anti-dropping function, which relates to the technical field of burette clamps and comprises a base, a lead screw is arranged at the top of the base, a moving block is in threaded connection with the outer wall of the lead screw, and connecting plates are fixedly connected to the left end and the right end of the moving block respectively. The sides, away from each other, of the two upward ends of the two connecting plates are fixedly connected with arc-shaped plates correspondingly, the arc-shaped plates are arranged in a mirror image mode, the ends, away from the lead screw, of the upper arc-shaped plate and the lower arc-shaped plate are provided with positioning clamping assemblies correspondingly, and the ends, away from each other, of the two connecting plates are provided with reinforcing assemblies correspondingly. The positioning and clamping assembly and the reinforcing assembly are arranged on the same vertical plane, and a sliding rod is fixedly connected to the position, close to the rear side of the lead screw, of the top of the base. According to the burette fixing device, burettes with different specifications and sizes can be positioned and clamped through the positioning and clamping assembly, and then the clamped burettes are fixed by operating the reinforcing assembly, so that the phenomenon that the burettes slip off in the use process is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to titration tube clamp technical field, specifically related to a titration tube clamp with prevent function. BACKGROUND

[0002] Titration tube is a commonly used tool, is used in chemical analysis and experiment process accurate addition solution or reagent, titration is a very important experimental operation in scientific research, in titration device titration tube needs to be fixed by fixing device or clamp on titration stand, the existing fixing device mainly adopts butterfly clamp, spring clamp, screw clamping, magnet adsorption fixed mode to fix titration tube.

[0003] There are various specifications and sizes of titration tubes in the existing laboratory, but the titration tube clamp is prone to sliding when clamping and fixing small specification size titration tubes, which causes damage to the titration tube, affects the efficiency of the experiment, and the existing fixing method is mostly inconvenient to lift and unstable. UTILITY MODEL CONTENT

[0004] The utility model provides a titration tube clamp with prevent function to solve the problem in the above background.

[0005] To solve the above technical problems, the technical scheme adopted by the utility model is:

[0006] A titration tube clamp with prevent function, including the base, the top of base is provided with lead screw, the outer wall of lead screw is connected with moving block, the left and right ends of moving block are fixedly connected with connecting plate, the upper and lower two arc-shaped plates are mirror image arranged on the sides away from each other of the upper and lower two connecting plates, the upper and lower two arc-shaped plates are provided with positioning and clamping assembly on the ends away from lead screw, the ends away from each other of the two connecting plates are provided with reinforcing assembly, the positioning and clamping assembly and reinforcing assembly are arranged on the same vertical plane, the rear side of base top close to lead screw is fixedly connected with slide rod.

[0007] The further improvement of the utility model technical scheme is that the outer wall bottom of lead screw is rotatably connected with bearing one, the top of lead screw is fixedly connected with knob one, the bottom of bearing one is fixedly connected with the upper surface of base.

[0008] The further improvement of the utility model technical scheme is that the outer wall rear side of moving block is fixedly connected with positioning plate, the outer wall of slide rod penetrates the upper and lower ends of positioning plate and is slidably connected therebetween.

[0009] The further improvement in the technical scheme of the utility model lies in that: the positioning and clamping assembly comprises a mounting plate, a fixed rod, two clamping blocks, two sliding blocks and a clamping spring, one end of the mounting plate is provided with a connecting groove, the front and rear ends of the fixed rod are fixedly connected with the inner walls of the connecting groove respectively, one end of the outer walls of the two sliding blocks penetrates to the outside of the mounting plate and is fixedly connected with one end of the two clamping blocks respectively, the outer wall of the fixed rod penetrates the middle parts of the two sliding blocks and is slidingly connected therebetween, the inside of the clamping spring is sleeved with the outer wall of the fixed rod, the front and rear ends of the clamping spring are fixedly connected with the opposite surfaces of the two sliding blocks respectively, and the opposite surfaces of the two clamping blocks are provided with a plurality of rubber strips which are arranged at equal intervals.

[0010] The further improvement in the technical scheme of the utility model lies in that: the end, away from the connecting groove, of the mounting plate is fixedly connected with the end, away from the moving block, of the arc-shaped plate.

[0011] The further improvement in the technical scheme of the utility model lies in that: the reinforcing assembly comprises a mounting rod, two clamping plates, two first fixing plates, two second fixing plates, a screw rod, a bearing two, a knob two and a limiting rod, the opposite surfaces of the two clamping plates are provided with arc-shaped grooves which penetrate up and down, the end, away from the arc-shaped groove, of the clamping plate on one side is fixedly connected with one end of the mounting rod, one end of the two first fixing plates is fixedly connected with the rear ends of the two clamping plates respectively, one end of the two second fixing plates is fixedly connected with the front ends of the two clamping plates respectively, the outer wall of the screw rod penetrates the left and right ends of the two second fixing plates, the outer wall of the screw rod is screw-connected with the inside of the second fixing plate which is close to the mounting rod, the outer wall of the end, away from the mounting rod, of the screw rod is rotationally connected with the inside of the bearing two, one end of the bearing two is fixedly connected with one end of the second fixing plate, the outer wall of the end, away from the bearing two, of the screw rod is fixedly connected with the middle part of the knob two, one end of the limiting rod is fixedly connected with the first fixing plate which is close to the mounting rod, and the outer wall of the other end of the limiting rod penetrates the middle part of the other first fixing plate and is slidingly connected therebetween.

[0012] The further improvement in the technical scheme of the utility model lies in that: the end, away from the clamping plate, of the mounting rod is fixedly connected with the end, away from the moving block, of the connecting plate.

[0013] The further improvement in the technical scheme of the utility model lies in that: the inner walls of the two arc-shaped grooves are fixedly connected with rubber pads.

[0014] Thanks to the above technical scheme, the utility model has the following technical progress compared with the prior art:

[0015] 1. This utility model provides a burette clamp with anti-slip function. It adopts the cooperation between a connecting plate, an arc plate, a positioning clamping component, and a reinforcing component. The positioning clamping component can position and clamp burettes of different sizes, and then the reinforcing component can fix the clamped burette, preventing slippage during use. This solves the problem that existing laboratory burette clamps are prone to slippage when clamping and fixing small-sized burettes, causing damage to the burette and affecting the efficiency of the experiment. It achieves the beneficial effect of increasing the anti-slip function of the burette clamp and improving the stability of the burette clamp.

[0016] 2. This utility model provides a burette clamp with anti-detachment function. It adopts the cooperation between the base, lead screw, moving block and slide rod. When clamping the burette, by rotating the lead screw, the moving block drives the connecting plates and arc plates on both sides to move up and down along the slide rod, thereby adjusting the clamping height of the burette. This solves the problems of inconvenient lifting and unstable operation of most existing fixing methods, and achieves the beneficial effect of conveniently adjusting the clamping height of the burette. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the burette clamp with anti-dislodgement function of this utility model.

[0018] Figure 2 This is a three-dimensional structural diagram of the lifting structure of this utility model;

[0019] Figure 3 This is a three-dimensional structural diagram of the positioning and clamping component of this utility model;

[0020] Figure 4 This is a three-dimensional structural diagram of the reinforcement component of this utility model;

[0021] Figure 5 This is a partially enlarged schematic diagram of the A-dimensional structure of this utility model.

[0022] In the diagram: 1. Base; 2. Lead screw; 21. Bearing 1; 22. Knob 1; 3. Moving block; 31. Positioning plate; 4. Connecting plate; 5. Arc plate; 6. Positioning and clamping assembly; 61. Mounting plate; 610. Connecting groove; 62. Fixing rod; 63. Clamping block; 631. Rubber strip; 64. Slider; 65. Clamping spring; 7. Reinforcing assembly; 71. Mounting rod; 72. Clamping plate; 720. Arc groove; 721. Rubber pad; 73. Fixing plate 1; 74. Fixing plate 2; 75. Screw; 76. Bearing 2; 77. Knob 2; 78. Limiting rod; 8. Slide rod. Detailed Implementation

[0023] In order to make the technical means, creation features, purposes and effects of the utility model easy to understand, the utility model is further described below in combination with specific embodiments.

[0024] As shown in Figure 1 The utility model provides a burette clamp with anti -drop function, including base 1, the top of base 1 is provided with lead screw 2, the outer wall of lead screw 2 is connected with moving block 3, and the left and right ends of moving block 3 are fixedly connected with connecting plate 4 respectively, and the upper and lower two arc plates 5 are fixedly connected with the side away from each other of the upper and lower two arc plates 5 respectively and are mirror image arranged, and the ends away from lead screw 2 of the upper and lower two arc plates 5 are provided with positioning and clamping assembly 6 respectively, and the ends away from each other of the two connecting plates 4 are provided with reinforcing assembly 7, and positioning and clamping assembly 6 and reinforcing assembly 7 are arranged on the same vertical plane, and the rear side of base 1 top close to lead screw 2 is fixedly connected with slide rod 8;

[0025] Setting base 1, lead screw 2, moving block 3, connecting plate 4, arc plate 5, positioning and clamping assembly 6, reinforcing assembly 7 and slide rod 8, through the cooperation between lead screw 2, moving block 3 and slide rod 8, it is convenient to adjust height for connecting plate 4 and arc plate 5 to move up and down, when clamping burette, first clamping and fixing burette through positioning and clamping assembly 6, then increasing the stability of burette clamping through operating slide rod 8.

[0026] As shown in Figure 2 The utility model provides a burette clamp with anti -drop function technical scheme: the outer wall bottom of lead screw 2 is connected with bearing one 21, and the top of lead screw 2 is fixedly connected with knob one 22, and the bottom of bearing one 21 is fixedly connected with the upper surface of base 1, and the outer wall rear side of moving block 3 is fixedly connected with locating plate 31, and the outer wall of slide rod 8 penetrates the upper and lower ends of locating plate 31 and is slidably connected between them, in the process of rotating lead screw 2, locating plate 31 slides along the outer surface of slide rod 8, and plays the role of limiting the movement track of connecting plate 4 and arc plate 5.

[0027] As shown in Figure 3As shown in the technical scheme, the utility model provides a burette clamp with anti -drop function technical scheme: positioning and clamping component 6 includes mounting plate 61, fixed rod 62, two clamping blocks 63, two sliding blocks 64 and clamping spring 65, one end of mounting plate 61 is provided with connecting groove 610, and the front and rear ends of fixed rod 62 are fixedly connected with the inner wall of connecting groove 610 respectively, one end of the outer wall of two sliding blocks 64 penetrates to the outside of mounting plate 61 and is fixedly connected with one end of two clamping blocks 63 respectively, the outer wall of fixed rod 62 penetrates the middle part of two sliding blocks 64 and is slidingly connected therebetween, and clamping spring 65 is sleeved on the outer wall of fixed rod 62, the front and rear ends of clamping spring 65 are fixedly connected with the opposite surfaces of two sliding blocks 64 respectively, the elastic force of clamping spring 65 is utilized, so that two clamping blocks 63 are self-clamped and fixed to the surface of burette, a plurality of rubber strips 631 are equidistantly arranged on the opposite surfaces of two clamping blocks 63, the rubber strip 631 is arranged on the surface of clamping block 63, the friction with the surface of burette is increased, and one end of mounting plate 61 away from connecting groove 610 is fixedly connected with one end of arc-shaped plate 5 away from moving block 3.

[0028] As Figures 4-5 shown, the utility model provides a burette clamp with anti -drop function technical scheme: reinforcing component 7 includes installation rod 71, two clamping plates 72, two fixed plates one 73, two fixed plates two 74, screw rod 75, bearing two 76, knob two 77 and limit rod 78, the opposite surfaces of two clamping plates 72 are provided with upper and lower through -going arc -shaped grooves 720, and one end of one side clamping plate 72 away from arc -shaped groove 720 is fixedly connected with one end of installation rod 71, and the rear end of two fixed plates one 73 is fixedly connected with two clamping plates 72 respectively, and the front end of two fixed plates two 74 is fixedly connected with two clamping plates 72 respectively, the outer wall of screw rod 75 penetrates the left and right ends of two fixed plates two 74, the outer wall of screw rod 75 is screwly connected with the inside of fixed plate two 74 close to installation rod 71 side, the outer wall of one end of screw rod 75 away from installation rod 71 is rotationally connected with the inside of bearing two 76, and one end of bearing two 76 is fixedly connected with one end of fixed plate two 74, by rotating screw rod 75, so that through bearing two 76 drive and connect with its clamping plate 72 telescopic movement, adjust the size of two clamping plate 72 opening, improve the stability of burette clamping, the outer wall of one end of screw rod 75 away from bearing two 76 is fixedly connected with the middle part of knob two 77, and one end of limit rod 78 is fixedly connected with fixed plate one 73 close to installation rod 71 side, and the outer wall of the other end of limit rod 78 penetrates the middle part of the other side fixed plate one 73 and is slidingly connected therebetween, and fixed plate one 73 slides along the surface of limit rod 78, and the moving track of clamping plate 72 is limited, and one end of installation rod 71 away from clamping plate 72 is fixedly connected with one end of connecting plate 4 away from moving block 3, and the inner wall of two arc -shaped grooves 720 is fixedly connected with rubber pad 721.

[0029] The working principle of this burette clamp with anti-detachment function will be explained in detail below.

[0030] like Figures 1-5 As shown, when using the burette clamp to hold the burette in the experiment, firstly, adjust the height of the connecting plate 4 and the arc plate 5. Then, rotate the lead screw 2 using knob 22, causing the moving block 3 to move on the lead screw 2. This moves the positioning plate 31 up and down along the surface of the slide rod 8, thus moving the connecting plate 4 and the arc plate 5 to a suitable height. Then, when clamping and fixing a small-sized burette, insert the burette from top to bottom between the two clamping plates 72, and use the elasticity of the clamping spring 65 to hold the two clamping blocks 63 through... The rubber strip 631 clamps and positions the burette on its upper and lower surfaces. By rotating the screw 75 with the knob 77, one side of the clamping plate 72 moves towards the mounting rod 71. The fixing plate 73 on the other side of the clamping plate 72 slides along the surface of the limiting rod 78, clamping the burette into the arc-shaped groove 720. The rubber pad 721 is tightly attached to the surface of the burette, increasing the friction between the clamping plate 72 and the burette, improving the stability of the clamping of the burette, and preventing the burette from falling off during the experiment.

[0031] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A burette clamp with anti-dropping function, comprising a base (1), characterized in that: The top of the base (1) is provided with a lead screw (2), the outer wall of the lead screw (2) is threadedly connected with a moving block (3), the left and right ends of the moving block (3) are fixedly connected with a connecting plate (4) respectively, the two connecting plates (4) are fixedly connected with arc-shaped plates (5) on the sides away from each other at the upper ends, and the two arc-shaped plates (5) are mirror image arranged between the two connecting plates (4). The two arc-shaped plates (5) are provided with a positioning and clamping assembly (6) at the ends away from the lead screw (2), the two connecting plates (4) are provided with a reinforcing assembly (7) at the ends away from each other, the positioning and clamping assembly (6) and the reinforcing assembly (7) are arranged on the same vertical plane, and the rear side of the base (1) near the lead screw (2) is fixedly connected with a slide rod (8).

2. The burette clamp with anti-dropping function according to claim 1, characterized in that: The outer wall of the lead screw (2) is rotatably connected with a bearing one (21) at the bottom, and the top of the lead screw (2) is fixedly connected with a knob one (22), and the bottom of the bearing one (21) is fixedly connected with the upper surface of the base (1).

3. The burette clamp with anti-dropping function according to claim 1, characterized in that: The outer wall of the moving block (3) is fixedly connected with a positioning plate (31) at the rear side, and the outer wall of the slide rod (8) penetrates through the upper and lower ends of the positioning plate (31) and is slidably connected therebetween.

4. The burette clamp with anti-dropping function according to claim 1, characterized in that: The positioning and clamping assembly (6) comprises a mounting plate (61), a fixed rod (62), two clamping blocks (63), two sliding blocks (64) and a clamping spring (65), one end of the mounting plate (61) is provided with a connecting groove (610), the front and rear ends of the fixed rod (62) are fixedly connected with the inner walls of the connecting grooves (610) respectively, one end of the outer wall of each of the two sliding blocks (64) penetrates to the outside of the mounting plate (61) and is fixedly connected with one end of the clamping block (63), the outer wall of the fixed rod (62) penetrates the middle portions of the two sliding blocks (64) and is slidably connected therebetween, the clamping spring (65) is sleeved on the outer wall of the fixed rod (62), the front and rear ends of the clamping spring (65) are fixedly connected with the opposite surfaces of the two sliding blocks (64) respectively, and the opposite surfaces of the two clamping blocks (63) are uniformly and equidistantly provided with a plurality of rubber strips (631).

5. The burette clamp with anti-dropping function according to claim 4, characterized in that: One end of the mounting plate (61) away from the connecting groove (610) is fixedly connected with one end of the arc-shaped plate (5) away from the moving block (3).

6. The burette clamp with anti-dropping function according to claim 1, characterized in that: Said reinforcing component (7) includes installation rod (71), two clamping plates (72), two fixed plates one (73), two fixed plates two (74), screw rod (75), bearing two (76), knob two (77) and limit rod (78), the opposite sides of two clamping plates (72) are all provided with upper and lower through arc grooves (720), one end of the clamping plate (72) away from the arc groove (720) is fixedly connected with one end of the installation rod (71), one end of two fixed plates one (73) is fixedly connected with the rear end of two clamping plates (72) respectively, one end of two fixed plates two (74) is fixedly connected with the front end of two clamping plates (72) respectively, the outer wall of screw rod (75) penetrates through the left and right ends of two fixed plates two (74), the outer wall of screw rod (75) is screwed with the inside of fixed plate two (74) close to the side of installation rod (71), the outer wall of screw rod (75) remote from the end of installation rod (71) is rotatably connected with the inside of bearing two (76), one end of bearing two (76) is fixedly connected with one end of fixed plate two (74), the outer wall of screw rod (75) remote from one end of bearing two (76) is fixedly connected with the middle of knob two (77), one end of limit rod (78) is fixedly connected with the fixed plate one (73) close to the side of installation rod (71), and the outer wall of limit rod (78) penetrates through the middle of the other side fixed plate one (73) and is slidably connected.

7. The burette clamp with anti-dropping function according to claim 6, characterized in that: The end of installation rod (71) away from clamping plate (72) is fixedly connected with the end of connecting plate (4) away from moving block (3).

8. The burette clamp with anti-dropping function according to claim 6, characterized in that: The inner wall of two arc grooves (720) is fixedly connected with rubber pad (721).

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