CN212702008U

CN212702008U - Chemical experiment mount

Info

Publication number: CN212702008U
Application number: CN202021078783.2U
Authority: CN
Inventors: 郝佩茜; 雷克微
Original assignee: Ningbo University
Current assignee: Ningbo University
Priority date: 2020-06-12
Filing date: 2020-06-12
Publication date: 2021-03-16
Anticipated expiration: 2030-06-12

Abstract

The utility model relates to a chemistry experiment equipment technical field specifically discloses a chemistry experiment mount, including base, support column and horizontal pole, the upper surface intermediate position of base be fixed with vertical support column, nested on the support column has the lift cover, is fixed with the translation cover on the lateral wall of lift cover, nested in the translation cover has the horizontally horizontal pole. One end of the cross rod is fixedly provided with an instrument clamp, and a fastening device is arranged in the lifting sleeve. The fastening device comprises a groove, a mounting groove and a clamping wheel, the clamping wheel is rotatably connected in the groove through a bearing, one side of the clamping wheel is fixedly connected with a positioning wheel, the mounting groove is formed in the middle of the right side of the groove, a horizontal guide column is placed in the mounting groove, a spring is sleeved outside the guide column, the left end of the guide column is hinged with two arc-shaped fastening claws, and an opening block is fixedly arranged in the groove between the two fastening claws on the right side of the clamping wheel. The utility model discloses the advantage: simple structure, easy operation, small occupied space, strong applicability and good stabilizing effect.

Description

Chemical experiment mount

Technical Field

The utility model relates to a chemistry experiment equipment technical field specifically is a chemistry experiment mount.

Background

In the chemical test, often can use the test tube to observe the chemical reaction that produces between the material, chemical reaction needs the heating a bit, and chemical reaction also can emit a large amount of heats a bit, if observe with holding the instrument with the hand and have certain danger, this just needs to use the mount to fix the test tube, avoids user's hand and test tube contact to cause the injury, and the instrument mount is fixed for the current chemistry experiment mostly adopts metal bolt, is difficult to break off with the fingers and thumb and fixed unstable. Delay the time of the user, bring trouble to the user, and influence the progress of the chemical experiment.

Chinese patent (publication No. CN 207680658U, bulletin day 2018.08.03) discloses the utility model discloses a test tube fixing frame for chemistry experiments, including the supporting bench, the bottom of supporting bench is provided with the base, the right side sliding connection at supporting bench top has first supporting shoe, the left side fixedly connected with second supporting shoe at supporting bench top, the front side at first supporting shoe and second supporting shoe top all fixedly connected with solid fixed splint. Through the cooperation use of first supporting shoe, go up supporting block, solid fixed splint, second supporting shoe, movable clamp plate, test tube hole, connecting rod, first spring, second slider and second spout, solved the problem that current test tube mount for chemistry experiment can only fix the test tube of a certain size and length mostly, this test tube mount for chemistry experiment possesses the advantage of the test tube of fixable different size different length. However, the device is inconvenient to fix, and the supporting table occupies too large area, which causes inconvenience in use.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a chemistry experiment mount to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

a chemical experiment fixing frame comprises a base, supporting columns and a cross rod. The middle position of the upper surface of the base is fixed with a vertical supporting column, the supporting column is nested with a lifting sleeve, and the lifting sleeve can freely lift on the supporting column. The lateral wall of the lifting sleeve is fixed with a translation sleeve, a horizontal cross rod is nested in the translation sleeve, and the cross rod can move horizontally in the translation sleeve. One end of the cross rod is fixedly provided with an instrument clamp which can clamp a reaction instrument.

The lifting sleeve is internally provided with a fastening device which can limit the lifting of the lifting sleeve and is convenient to fix. The fastening device comprises a groove, a mounting groove and a clamping wheel. The recess set up in the inboard of lifting sleeve, the recess in rotate through the bearing and be connected with the chucking wheel, chucking wheel one side fixedly connected with locating wheel, the diameter of locating wheel is less than the diameter of chucking wheel, locating wheel and chucking wheel can be in the recess free rotation.

The middle position of the right side of the groove is provided with a mounting groove which is of a thick-middle-end-thin structure. A horizontal guide post is arranged in the mounting groove, the guide post can freely move in the mounting groove, and a spring is embedded outside the guide post. A limiting block is fixed on the guide post on the right side of the spring and used for limiting the movement of the spring and the guide post. The right end of guide post stretches out the mounting groove. The left end of guide post articulates there are two curved fastening claws, and the fastening claw inboard is provided with the fastening tooth, and the clamping wheel right side is fixed with in the recess between two fastening claws and opens the piece. The guide post moves rightwards under the action of the spring, the two fastening claws are extruded by the lifting sleeve and clamped outside the positioning wheel, and the fastening teeth are meshed with the insections on the positioning wheel, so that the clamping wheel cannot rotate. The side face of the clamping wheel is in contact with the side face of the supporting column, so that the lifting sleeve is clamped on the supporting column, and fixation is completed. When the lifting sleeve needs to be lifted, the right end of the guide post is pressed down, the guide post moves rightwards, the opening block enables the fastening claw to open, the fastening teeth are separated from the insection on the positioning wheel, the lifting sleeve can be moved upwards and downwards, and therefore the height of the instrument is adjusted.

As a further aspect of the present invention: the lower surface of base paste and have the gasket, the setting up of gasket has increased the frictional force of base with the desktop, makes placing of base more stable.

As a further aspect of the present invention: the rubber layer is arranged on the outer side of the clamping wheel, friction force between the clamping wheel and the supporting column is increased due to the arrangement of the rubber layer, and the clamping wheel is prevented from sliding during fixing.

As a further aspect of the present invention: the diameter of the positioning wheel is smaller than that of the clamping wheel.

As a further aspect of the present invention: the edge of the positioning wheel is of a tooth-pattern structure.

As a further aspect of the present invention: the four sides of the base are all hinged with support legs, the support legs can rotate around the base, the support legs are unfolded by rotating the support legs, the contact area of the base and the desktop can be increased, and the fixing frame is placed more stably.

As a further aspect of the present invention: the lower surface of the support leg is provided with the gasket, the friction force between the support leg and the desktop is increased due to the arrangement of the gasket, and the support leg is prevented from sliding when being supported.

Compared with the prior art, the beneficial effects of the utility model are that: the supporting legs are arranged, so that the supporting area is enlarged, the supporting stability is enhanced, and meanwhile, the occupied space of the equipment is reduced. The lifting sleeve and the translation sleeve are matched to realize the horizontal and vertical movement of the instrument, so that the instrument is more convenient to position. The lifting sleeve is fixed by the fastening device, so that the fixing and moving are convenient and fast, and the experiment preparation time is reduced. The guide post can be adjusted by pressing down, so that the adjusting difficulty is reduced. The fastening claw is matched with the positioning wheel, so that the fixation is firmer. The utility model discloses the advantage: simple structure, easy operation, small occupied space, strong applicability and good stabilizing effect.

Drawings

Fig. 1 is a schematic structural view of a chemical experiment fixing frame in an embodiment 1.

Fig. 2 is a schematic top view of a chemical experiment fixing frame in an embodiment 1.

Fig. 3 is a schematic structural diagram of a fastening device in the embodiment 1 of the chemical experiment fixing frame.

Fig. 4 is a schematic structural view of a chemical experiment fixing frame in embodiment 2.

In the figure, a base 1, a support column 2, an instrument clamp 3, a cross rod 4, a lifting sleeve 5, a fastening device 6, a gasket 7, a translation sleeve 8, a fastening tooth 9, an opening block 10, a mounting groove 11, a spring 12, a guide rod 13, a limiting block 14, a groove 15, a positioning wheel 16, a clamping wheel 17, a rubber layer 18, a fastening claw 19 and a support leg 20.

Detailed Description

The technical solution of the present patent will be described in further detail with reference to the following embodiments.

Example 1

Referring to fig. 1-3, a chemical experiment fixing frame includes a base 1, a supporting column 2 and a cross bar 4. The lower surface of base 1 paste and have gasket 7, the setting up of gasket 7 has increased the frictional force of base 1 with the desktop, makes placing of base 1 more stable. The upper surface intermediate position of base 1 be fixed with vertical support column 2, nested lifting sleeve 5 on the support column 2, lifting sleeve 5 can freely go up and down on support column 2. The side wall of the lifting sleeve 5 is fixed with a translation sleeve 8, a horizontal cross rod 4 is nested in the translation sleeve 8, and the cross rod 4 can move horizontally in the translation sleeve 8. One end of the cross rod 4 is fixedly provided with an instrument clamp 3, and the instrument clamp 3 can clamp a reaction instrument.

The lifting sleeve 5 is internally provided with a fastening device 6, and the fastening device 6 can limit the lifting of the lifting sleeve 5, so that the lifting sleeve 5 is convenient to fix. The fastening device 6 comprises a groove 15, a mounting groove 11 and a clamping wheel 17. The groove 15 is formed in the inner side of the lifting sleeve 5, the clamping wheel 17 is rotatably connected in the groove 15 through a bearing, a rubber layer 18 is arranged on the outer side of the clamping wheel 17, the friction force between the clamping wheel 17 and the supporting column 2 is increased due to the arrangement of the rubber layer 18, and the clamping wheel is prevented from sliding during fixing. One side of the clamping wheel 17 is fixedly connected with a positioning wheel 16, the diameter of the positioning wheel 16 is smaller than that of the clamping wheel 17, and the edge of the positioning wheel 16 is of a tooth-shaped structure. The positioning wheel 16 and the clamping wheel 17 can rotate freely in the groove 15.

The middle position of the right side of the groove 15 is provided with a mounting groove 11, and the mounting groove 11 is of a structure with thick middle and thin two ends. A horizontal guide post 13 is arranged in the mounting groove 11, the guide post 13 can freely move in the mounting groove 1, and a spring 12 is embedded outside the guide post 13. A limiting block 14 is fixed on the guide post 13 on the right side of the spring 12, and the limiting block 14 is used for limiting the movement of the spring 12 and the guide post 13. The right end of the guide post 13 extends out of the mounting groove 11. Two arc-shaped fastening claws 19 are hinged at the left end of the guide column 13, fastening teeth 9 are arranged on the inner sides of the fastening claws 19, and an opening block 10 is fixed in a groove 15 between the two fastening claws 19 on the right side of the clamping wheel 17. The guide column 13 moves rightwards under the action of the spring 12, the two fastening claws 19 are extruded by the lifting sleeve 5 and clamped outside the positioning wheel 16, and the fastening teeth 9 are meshed with the insections on the positioning wheel 16, so that the clamping wheel 17 cannot rotate. The side surface of the clamping wheel 17 is contacted with the side surface of the supporting column 2, so that the lifting sleeve 5 is clamped on the supporting column 2, and the fixation is completed. When the lifting sleeve 5 needs to be lifted, the right end of the guide post 13 is pressed, the guide post 13 moves rightwards, the opening block 10 opens the fastening claw 19, the fastening teeth 9 are separated from the insection on the positioning wheel 16, the lifting sleeve 5 can be lifted upwards and downwards, and therefore the height of the instrument is adjusted.

The utility model discloses a theory of operation is: the fixing frame is placed on an experiment table, an experimental instrument is clamped in the instrument clamp 3, and the horizontal position of the instrument is adjusted by the horizontal moving cross rod 4. The right end of the guide post 13 is pressed, the guide post 13 moves rightwards, the opening block 10 opens the fastening claw 19, the fastening teeth 9 are separated from the insection on the positioning wheel 16, and the lifting sleeve 5 can move up and down, so that the height of the instrument can be adjusted. When the right end of the guide post 13 is loosened, the guide post 13 moves rightwards under the action of the spring 12, the two fastening claws 19 are pressed inwards by the lifting sleeve 5 and are clamped outside the positioning wheel 16, and the fastening teeth 9 are meshed with the insections on the positioning wheel 16, so that the fastening wheel 17 cannot rotate, and the lifting sleeve 5 is fixed.

Example 2

Referring to fig. 4, on the basis of embodiment 1, the four sides of the base 1 are hinged with the supporting legs 20, the supporting legs 20 can rotate around the base 1, and the supporting legs 20 are unfolded by rotating the supporting legs 20, so that the contact area between the base 1 and the table top can be increased, and the fixing frame can be placed more stably. The lower surface of the support leg 20 is provided with the gasket 7, and the arrangement of the gasket 7 increases the friction force between the support leg 20 and the table top, so that the support leg 20 is prevented from sliding when being supported.

Although the preferred embodiments of the present patent have been described in detail, the present patent is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present patent within the knowledge of those skilled in the art.

Claims

1. The utility model provides a chemical experiment mount, includes base (1), support column (2) and horizontal pole (4), the upper surface intermediate position of base (1) be fixed with vertical support column (2), nested lift cover (5) on support column (2), the lateral wall of lift cover (5) on be fixed with translation cover (8), nested horizontal pole (4) in translation cover (8), the one end of horizontal pole (4) set firmly instrument clamp (3), its characterized in that, lift cover (5) on be provided with fastener (6), fastener (6) including recess (15), mounting groove (11) and chucking wheel (17), recess (15) in be connected with chucking wheel (17) through the bearing rotation, chucking wheel (17) one side fixedly connected with locating wheel (16), recess (15) right side intermediate position seted up mounting groove (11), a horizontal guide post (13) is placed in the mounting groove (11), a spring (12) is embedded outside the guide post (13), the left end of the guide post (13) is hinged with two arc-shaped fastening claws (19), and an opening block (10) is fixed in a groove (15) between the two fastening claws (19) on the right side of the clamping wheel (17).

2. The chemical experiment fixing frame according to claim 1, characterized in that a gasket (7) is adhered to the lower surface of the base (1).

3. A chemical experiment fixing frame according to claim 1 or 2, characterized in that a rubber layer (18) is arranged outside the clamping wheel (17).

4. A chemical experiment fixing frame according to claim 3, characterized in that the diameter of the positioning wheel (16) is smaller than that of the clamping wheel (17).

5. A chemical experiment fixing frame according to claim 4, characterized in that the edge of the positioning wheel (16) is in a tooth-like structure, and the fastening teeth (9) are arranged on the inner side of the fastening claw (19).

6. A chemical experiment fixing frame according to claim 5, characterized in that the mounting groove (11) is of a thick-middle and thin-end structure.

7. A chemical experiment fixing frame according to claim 6, characterized in that the four sides of the base (1) are hinged with supporting legs (20).

8. A chemical experiment fixing frame according to claim 7, characterized in that the lower surface of the supporting leg (20) is provided with a gasket (7).