CN212017879U

CN212017879U - Test tube fixing device for chemistry experiments

Info

Publication number: CN212017879U
Application number: CN201822062139.5U
Authority: CN
Inventors: 王梦梦
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-12-10
Filing date: 2018-12-10
Publication date: 2020-11-27
Anticipated expiration: 2028-12-10

Abstract

The utility model belongs to the technical field of student's experiment tool technique and specifically relates to a test tube fixing device for chemistry experiments, chassis lower extreme four corners is equipped with the spout of T shape, and the joint has the slide bar of T shape in the spout of T shape, the base is hemispherical and pegs graft in the recess, and the base is solid metal material, and fixing base inner wall rigid coupling has a plurality of springs, spring other end rigid coupling has the sponge cushion, fixing base side upper end articulates through the spring hinge has four sleeve pipes, and the intraductal grafting of sleeve has the connecting rod, just connecting rod lower part rigid coupling has the rubber clutch blocks, the fixed clamp connects in the connecting rod upper end, and the terminal surface all is arc and rigid coupling has the impressed watermark rubber layer in four fixation clamps. The utility model has the advantages of reasonable design, the torsion and the spring that rely on the spring hinge to produce can fix the test tube, and the device both can rely on the chassis to place during the use, and the test tube that partly is vacant also can rely on the base of solid metal bottom surface upright for the test tube can not broken into pieces.

Description

Test tube fixing device for chemistry experiments

Technical Field

The utility model belongs to the technical field of student's experiment apparatus technique and specifically relates to a test tube fixing device for chemistry experiments.

Background

The test tube is as a common experimental tool, the multi-purpose use of student chemistry experiment teaching, and its bottom surface of common test tube is mostly the arc, and unable direct upright placing needs to be placed on the test-tube rack. The test-tube rack that present laboratory was used mostly is the shelf that is equipped with a plurality of holes, can once only place a plurality of test tubes, but turns on one's side easily, in addition, if needs then seem inconvenient when taking the test tube alone, especially the student is when chemistry experiment teaching, and a test-tube rack has many students to get and puts the test tube. In the utility model patent of china that bulletin number is CN207805682U, a high school's chemistry teaching is with test tube fixing device convenient to use has been published, through the base of detachable sucking disc as the device, can adsorb the device on podium or desk, and the device can be used to place a test tube alone, also can splice for the storage is more convenient. However, the suction cup can only be sucked on a smooth surface, and stable suction is difficult to realize on a part of a rough desk surface, so that the device still needs to be further improved.

Disclosure of Invention

The utility model aims at overcoming above-mentioned technical shortcoming and providing a test tube fixing device for chemistry experiments, the torsion and the spring that rely on the spring hinge to produce can fix the test tube, and the device both can rely on the chassis to place during the use, and the test tube of partly vacant also can rely on the base of solid metal bottom surface upright for the test tube can not be broken into pieces.

The utility model provides a technical scheme that technical problem adopted does: a test tube fixing device for chemical experiments comprises a bottom frame, a base and fixing clamps, wherein T-shaped sliding grooves are formed in four corners of the lower end of the bottom frame, T-shaped sliding rods are connected in the T-shaped sliding grooves in a clamping mode, the sliding rods are pulled out of the sliding grooves and can be used for improving the stability of the bottom frame, arc-shaped grooves are formed in the bottom frame, the base is hemispherical and is inserted into the grooves, the base is made of solid metal materials, a fixing seat is fixedly connected to the upper end of the base, a plurality of springs are fixedly connected to the inner wall of the fixing seat, a sponge cushion layer is fixedly connected to the other end of each spring, the lower end of a test tube is inserted into the fixing seat, the springs are used for clamping, the abrasion of the springs to the surface of the test tube can be reduced, four sleeves are hinged to the upper end of the side face of the fixing seat through spring hinges, connecting rods, place the test tube in the middle of four fixation clamps, the torsion combined action that the fixation clamp relied on the spring hinge to produce can press from both sides tight test tube, along sleeve pipe push-and-pull connecting rod, the height that adjustable fixation clamp located, so as to with the test tube that adapts to different length, the impressed watermark rubber layer not only can increase the frictional force between fixation clamp and test tube, the test tube can directly be placed in the chassis when can reducing the fixation clamp to the degree of wear of test tube when using simultaneously, rely on the vertical placement of chassis, vacant test tube also can take out, the base that relies on the solid metal bottom surface is upright, even if the device receives external force slope this moment, also can resume fast to upright state and can not make the test tube be broken into.

Further, chassis left end and front end are equipped with the jack, and right-hand member face and rear end face rigid coupling have the inserted bar, and the left side in the jack in right-hand member and the place ahead jack the rear end be equipped with spherical chamber, and right side inserted bar right-hand member and rear inserted bar rear end rigid coupling have the rubber ball, the chassis can rely on jack and inserted bar freely to splice to the concentrated storage of test tube, the elasticity of rubber ball self makes it can extrusion deformation, so that the inserted bar inserts in the jack and makes rubber ball joint in spherical intracavity, also can extract simultaneously, so that taking of single device.

Further, be equipped with transparent label bag on the fixing base front end to place the label, mark the test tube of placing.

The utility model discloses the beneficial effect who has is: the utility model has reasonable structural design, the height of the fixing clamp can be adjusted by pushing and pulling the connecting rod along the sleeve, so as to adapt to test tubes with different lengths, and the fixing clamp can clamp the test tubes by the torsion force generated by the spring hinge; the lower end of the test tube is inserted into the fixed seat and is clamped by the spring, and the spongy cushion layer can be used for reducing the abrasion of the spring on the surface of the test tube; the test tube can directly be placed in the chassis during use, relies on the vertical placing of chassis, and vacant test tube also can take out, and the base that relies on solid metal bottom surface is upright, even if the device receives external force slope this moment, also can resume to upright state fast and can not make the test tube by the breakage.

Drawings

Fig. 1 is a schematic diagram of the external structure of the present invention.

Fig. 2 is a schematic diagram of the internal structure of the present invention.

Fig. 3 is a schematic diagram of the connection between the present invention.

Detailed Description

The present invention will be described in detail below with reference to fig. 1 to 3.

As shown in figures 1-3, the utility model comprises a bottom frame 1, a base 2 and a fixing clamp 10, wherein T-shaped sliding grooves 17-1 are arranged at four corners of the lower end of the bottom frame 1, T-shaped sliding rods 17 are clamped in the T-shaped sliding grooves 17-1, the stability of the bottom frame 1 can be improved by pulling out the sliding rods 17 from the sliding grooves 17-1, an arc-shaped groove 1-1 is arranged on the bottom frame 1, the base 2 is hemispherical and is inserted in the groove 1-1, the base 2 is made of solid metal, the upper end of the base 2 is fixedly connected with a fixing base 3, the inner wall of the fixing base 3 is fixedly connected with a plurality of springs 4, the other end of each spring 4 is fixedly connected with a sponge cushion 5, the lower end of a test tube is inserted into the fixing base 3 and is clamped by the springs 4, the sponge cushion 5 can reduce the abrasion of the spring, the connecting rod 8 has been pegged graft in the sleeve pipe 7, just connecting rod 8 lower part rigid coupling has rubber clutch blocks 9, fixation clamp 10 rigid coupling in connecting rod 8 upper end, the terminal surface all is arc and rigid coupling in four fixation clamps 10 has impressed watermark rubber layer 11, places the test tube in the middle of four fixation clamps 10, but the torsion combined action that fixation clamp 10 relied on spring hinge 6 to produce presss from both sides tight test tube, along sleeve pipe 7 push-and-pull connecting rod 8, the height that adjustable fixation clamp 10 located to with the test tube that adapts to different length, impressed watermark rubber layer 11 can only increase the frictional force between fixation clamp 10 and test tube not only, can reduce the degree of wear of fixation clamp 10 to the test tube simultaneously.

In this embodiment, 1 left end of chassis and front end are equipped with jack 12, and right-hand member and rear end face rigid coupling have inserted bar 13, and the rear end is equipped with spherical chamber 14 in right-hand member and the place ahead jack 12 in the left side jack 12, and right side inserted bar 13 right-hand member and 13 rear end rigid couplings of rear inserted bar have rubber ball 15, chassis 1 can rely on

jack

12 and 13 free concatenations of inserted bar to in the concentrated storage of test tube, the elasticity of rubber ball 15 self makes it can extrusion deformation, so that inserted bar 13 inserts to jack 12 in and make 15 joints of rubber ball in spherical chamber 14, also can extract simultaneously, so that the taking of single device.

In this embodiment, be equipped with transparent label bag 16 on the 3 front ends of fixing base to in place the label, mark the test tube of placing.

When the utility model is used, firstly, the slide bar 17 is pulled out from the chute 17-1, the connecting rod 8 is pushed and pulled along the sleeve 7 to adjust the height of the fixing clamp 10, so that the fixing clamp adapts to the length of the test tube, the test tube is placed between the four fixing clamps 10, the lower end of the test tube is inserted into the fixing seat 3 and is clamped by the spring 4, the test tube can be directly placed in the bottom frame 1 when in use, the vacant test tube can be taken out by vertically placing the bottom frame 1, the base 2 on the bottom surface of the solid metal is upright, and at the moment, even if the device is inclined by external force, the device can be quickly restored to the upright state without breaking the test tube; the chassis 1 of a plurality of devices are spliced together by means of the jacks 12 and the insertion rods 13, and test tubes for experiments can be stored in a centralized manner.

Claims

1. The utility model provides a test tube fixing device for chemistry experiments, includes chassis, base and fixation clamp, its characterized in that: the utility model discloses a four-wheel drive device, including chassis, fixing base, fixing clamp, sponge cushion layer, base side, connecting rod, rubber friction block, fixing clamp, the chassis lower extreme four corners is equipped with the spout of T shape, and the joint has the slide bar of T shape in the spout of T shape, is equipped with curved recess on the chassis, the base is hemispherical and pegs graft in the recess, and the base is solid metal material, and its upper end rigid coupling has the fixing base, and fixing base inner wall rigid coupling has a plurality of springs, spring other end rigid coupling has the sponge cushion layer, fixing base side upper end articulates through the spring hinge has four sleeve pipes, and the intussuseption of sleeve pipe is peg.

2. The test tube fixing device for chemical experiments according to claim 1, wherein: the left end and the front end of the underframe are provided with jacks, the right end face and the rear end face are fixedly connected with inserted bars, spherical cavities are arranged at the inner right end of the left-side jack and the inner rear end of the front jack, and rubber balls are fixedly connected at the right end of the right-side inserted bar and the rear end of the rear inserted bar.

3. The test tube fixing device for chemical experiments according to claim 1, wherein: the front end of the fixed seat is provided with a transparent label bag.