CN216053524U - Outer chain telescopic DNA structural model convenient to disassemble - Google Patents
Outer chain telescopic DNA structural model convenient to disassemble Download PDFInfo
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- CN216053524U CN216053524U CN202121991197.1U CN202121991197U CN216053524U CN 216053524 U CN216053524 U CN 216053524U CN 202121991197 U CN202121991197 U CN 202121991197U CN 216053524 U CN216053524 U CN 216053524U
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- block
- chain
- clamping block
- outer chain
- sliding
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- 229910001220 stainless steel Inorganic materials 0.000 claims description 6
- 239000010935 stainless steel Substances 0.000 claims description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 238000005299 abrasion Methods 0.000 abstract description 2
- 230000008859 change Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model relates to the technical field of DNA structural model teaching, in particular to an external chain telescopic DNA structural model convenient to disassemble, which comprises an external chain, wherein a fixed block is connected at the central position of the upper end of the inner side of the external chain in a sliding way, the fixed block penetrates through the external chain, a first clamping block is connected at the inner side of the fixed block in a sliding way, the second clamping block is inserted into the sliding block through a second clamping block and a sliding block, the angle of a connecting rod is adjusted through the rotation of the second clamping block in the sliding block, so that the two ends of the connecting rod can be inserted into the sliding blocks in the two external chains, the external fixation between the external chains is carried out, after the second clamping block is damaged, a bolt is screwed out from a limiting rod to replace the new second clamping block, the second clamping block is fixed on the limiting rod by using the bolt, the abrasion of the second clamping block is prevented from influencing the assembly of the connecting rod, the second clamping block is pulled out from the sliding block when a device is disassembled, the external chain and the connecting rod can be separated from the limiting rod, the disassembly between the connecting rod and the outer chain of the DNA mould is facilitated.
Description
Technical Field
The utility model relates to an external-chain telescopic DNA structural model convenient to disassemble, and belongs to the technical field of DNA structural model teaching.
Background
In recent years, with the development of DNA technology, teaching about the DNA double helix structure is more and more emphasized by people, the traditional DNA double helix structure teaching is generally carried out by using a picture or computer demonstration mode, and the common defects of the modes are that a teacher cannot interact with students, the students cannot conveniently operate by themselves, the characteristics of the DNA double helix structure cannot be better understood, the teaching is difficult to remember, and the teaching difficulty is high.
And the design of current DNA double helix spatial structure model most is the integration, inconvenient disassembling between its connective bar and the outer chain to thereby the outer chain model can not stretch out and draw back and the inconvenient equipment that carries out the DNA outer chain model of angle change, this basic structure unit that can make the constitution macromolecule can not be fine embodies out, makes the student can not have more comprehensive understanding to the connected mode that the connective bar of DNA is right, can't satisfy the needs that use.
SUMMERY OF THE UTILITY MODEL
[ problem ] to
The utility model aims to solve the problems that: the existing DNA structure model has poor teaching effect, students cannot comprehensively know the DNA structure, the understanding is difficult, the memorization is difficult, and the teaching difficulty is high.
[ solution ]
The utility model provides an external-chain telescopic DNA structural model convenient to disassemble, which is suitable for teaching of DNA structural models.
The outer chain telescopic DNA structural model convenient to disassemble comprises an outer chain, a fixed block is slidably connected at the central position of the upper end of the inner side of the outer chain, a connecting rod is fixedly connected at the central position of the lower end of the outer chain, a first clamping block is fixedly connected at the lower end of the connecting rod, a first limiting ring is spirally connected at the lower end of the outer side of the outer chain, the lower end of the outer chain penetrates through the first limiting ring, a fence is fixedly connected at the lower end of the first limiting ring, a second limiting ring is fixedly connected at the lower end of the fence, a bearing is fixedly connected at the inner side of the second limiting ring, a sliding block is fixedly connected at the middle position of the inner side of the outer chain, a second clamping block is rotatably connected at the inner side of the sliding block, the second clamping block penetrates through the outer chain and the sliding block, a bolt penetrates through the outer chain, the sliding block and the second clamping block, and a wear-resisting block is spirally connected at the tail end of the bolt, the outer side of the wear-resistant block is fixedly connected with a limiting rod, the limiting rod is connected with the second clamping block in a sliding mode, the outer side of the limiting rod is connected with a gasket in a sliding mode, and the other end of the limiting rod is fixedly connected with a connecting rod representing a base.
Preferably, the fixed block and the first fixture block are both made of stainless steel plates, and the first fixture block is spherical.
Preferably, enclose the fender and make by the tubular product of copper product, the outer chain runs through and encloses the fender, and encloses fender and outer chain sliding connection.
Preferably, the sliding block is made of a stainless steel pipe, the sliding block penetrates through the outer chain, the second clamping block is made of a PVC pipe, and the second clamping block is spherical.
Preferably, the gasket is made of a rubber pipe, the limiting rod penetrates through the gasket, and the gasket is connected with the connecting rod, the sliding block and the outer chain in a sliding mode.
[ advantageous effects ]
1. According to the utility model, through the second fixture block and the slide block, the second fixture block is inserted into the slide block, and the angle of the connecting rod is adjusted through the rotation of the second fixture block in the slide block, so that the two ends of the connecting rod can be inserted into the slide blocks in the two outer chains, and the outer chains are externally fixed, after the second fixture block is damaged, the bolt is screwed out of the limiting rod to replace a new second fixture block, and the second fixture block is fixed on the limiting rod by using the bolt, so that the connecting rod is prevented from being influenced by the abrasion of the second fixture block, and the second fixture block is pulled out of the slide block when the device is disassembled, so that the outer chains and the connecting rod can be separated, and the disassembly between the connecting rod and the outer chains of the DNA mold is convenient;
2. according to the utility model, through the arrangement of the first fixture block and the fixed block, when the outer chain is assembled, the connecting rod formed by the outer chain is firstly inserted into the bottom plate, the first limiting ring is rotated to drive the fixed block to slide up and down to adjust the distance between the outer chains so as to adjust the integral length of the outer chain, the angle between the outer chains is changed through the connecting rod and the first fixture block through rotation, and the angle between the outer chains is fixed through the deformation of the enclosure, so that the assembly of a DNA outer chain model is facilitated.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the mounting structure of the slider of the present invention;
fig. 3 is a schematic view of an installation structure of the fixing block of the present invention.
In the figure: 1-outer chain, 2-fixed block, 3-first fixture block, 4-connecting rod, 5-first limiting ring, 6-enclosure, 7-second limiting ring, 8-bearing, 9-sliding block, 10-second fixture block, 11-bolt, 12-wear-resistant block, 13-limiting rod, 14-gasket and 15-connecting rod.
Detailed Description
In order to achieve the above objects, features and advantages and to make the utility model more comprehensible, the present invention is described in detail with reference to the following embodiments.
Example 1
An outer chain telescopic DNA structural model convenient for disassembly is shown in figures 1-3 and comprises an outer chain 1, a fixed block 2 is connected at the central position of the upper end of the inner side of the outer chain 1 in a sliding way, a connecting rod 4 is fixedly connected at the central position of the lower end of the outer chain 1, a first clamping block 3 is fixedly connected at the lower end of the connecting rod 4, a first limiting ring 5 is spirally connected at the lower end of the outer side of the outer chain 1, the lower end of the outer chain 1 penetrates through the first limiting ring 5, a fence 6 is fixedly connected at the lower end of the first limiting ring 5, a second limiting ring 7 is fixedly connected at the lower end of the fence 6, a bearing 8 is fixedly connected at the inner side of the second limiting ring 7, a sliding block 9 is fixedly connected at the middle position of the inner side of the outer chain 1, a second clamping block 10 is rotatably connected at the inner side of the sliding block 9, the second clamping block 10 penetrates through the outer chain 1 and the sliding block 9, a bolt 11 is rotatably connected at the inner side of the second clamping block 10, the tail end of the bolt 11 is spirally connected with a wear-resistant block 12, the outer side of the wear-resistant block 12 is fixedly connected with a limiting rod 13, the limiting rod 13 is in sliding connection with the second fixture block 10, the outer side of the limiting rod 13 is in sliding connection with a gasket 14, and the other end of the limiting rod 13 is fixedly connected with a connecting rod 15 representing a basic group.
The fixed block 2 and the first fixture block 3 are both made of stainless steel plates, and the first fixture block 3 is arranged in a spherical shape, so that the connection between the outer chains 1 is facilitated; the enclosure 6 is made of a copper pipe, the outer chain 1 penetrates through the enclosure 6, and the enclosure 6 is in sliding connection with the outer chain 1, so that the angle fixation between the outer chains 1 is facilitated; the sliding block 9 is made of a stainless steel pipe, the sliding block 9 penetrates through the outer chain 1, the second clamping block 10 is made of a PVC pipe, and the second clamping block 10 is arranged in a spherical shape to prevent the second clamping block 10 from wearing the outer chain 1; the gasket 14 is made by the tubular product of rubber material, and gag lever post 13 runs through gasket 14, and gasket 14 and connective bar 15, slider 9 and outer chain 1 sliding connection, make 15 both ends of connective bar deform at will, made things convenient for the angle change of connective bar 15.
The working process is as follows: when the outer chain 1 is assembled, a connecting rod composed of the outer chain 1 is inserted into a bottom plate, then the first clamping block 3 is inserted into the fixing block 2, the bearing 8 is sleeved at the other end of the outer chain 1, the outer chain 1 is combined into a connecting rod with a proper length, the first limiting ring 5 is rotated to drive the fixing block 2 to slide up and down to adjust the distance between the outer chains 1, so as to adjust the integral length of the outer chain 1, the angle between the outer chains 1 is changed by rotating the connecting rod 4 and the first clamping block 3, the angle between the outer chains 1 is fixed by the deformation of the baffle 6, the first clamping block 3 is pulled out from the fixing block 2, so as to disassemble the assembled outer chain 1, the second clamping block 10 is inserted into the sliding block 9, the angle of the connecting rod 15 is adjusted by the rotation of the second clamping block 10 in the sliding block 9, so that the two ends of the connecting rod 15 can be inserted into the sliding blocks in the two outer chains 1, and the outer chains 1 are externally fixed, thereby the gasket 14 that sets up can take place to deform at will and make 15 both ends of connective bar can deform at will and carry out the change of angle, damage the back at second fixture block 10, screw out bolt 11 from gag lever post 13 and change new second fixture block 10 and use bolt 11 to fix on gag lever post 13, prevent that the wearing and tearing of second fixture block 10 from influencing the equipment of connective bar 15, second fixture block 10 takes out from slider 9 when dismounting device, just can part between outer chain 1 and connective bar 15.
The scope of the present invention is not limited to the above embodiments, and any modifications, equivalent substitutions, improvements, etc. that can be made by those skilled in the art within the spirit and principle of the inventive concept should be included in the scope of the present invention.
Claims (5)
1. The outer chain telescopic DNA structural model convenient to disassemble is characterized by comprising an outer chain (1), wherein a fixed block (2) is connected to the central position of the inner upper end of the outer chain (1) in a sliding manner, a connecting rod (4) is fixedly connected to the central position of the lower end of the outer chain (1), a first clamping block (3) is fixedly connected to the lower end of the connecting rod (4), a first limiting ring (5) is spirally connected to the lower end of the outer side of the outer chain (1), the lower end of the outer chain (1) penetrates through the first limiting ring (5), a baffle (6) is fixedly connected to the lower end of the first limiting ring (5), a second limiting ring (7) is fixedly connected to the lower end of the baffle (6), a bearing (8) is fixedly connected to the inner side of the second limiting ring (7), a sliding block (9) is fixedly connected to the middle position of the inner side of the outer chain (1), and a second clamping block (10) is rotatably connected to the inner side of the sliding block (9), and the second clamping block (10) penetrates through the outer chain (1) and the sliding block (9), the inner side of the second clamping block (10) is rotatably connected with a bolt (11), the bolt (11) penetrates through the outer chain (1), the sliding block (9) and the second clamping block (10), the tail end of the bolt (11) is spirally connected with a wear-resistant block (12), the outer side of the wear-resistant block (12) is fixedly connected with a limiting rod (13), the limiting rod (13) is in sliding connection with the second clamping block (10), the outer side of the limiting rod (13) is in sliding connection with a gasket (14), and the other end of the limiting rod (13) is fixedly connected with a connecting rod (15) representing a basic group.
2. The external-strand telescopic DNA structural model convenient to disassemble as claimed in claim 1, wherein the fixed block (2) and the first fixture block (3) are both made of stainless steel plate, and the shape of the first fixture block (3) is spherical.
3. The external chain telescopic DNA structural model convenient for disassembly as claimed in claim 2, wherein the enclosure (6) is made of a tube made of copper, the external chain (1) penetrates through the enclosure (6), and the enclosure (6) is connected with the external chain (1) in a sliding manner.
4. The external chain telescopic DNA structural model convenient for disassembly as claimed in claim 3, wherein the sliding block (9) is made of stainless steel tubing, the sliding block (9) penetrates through the external chain (1), the second block (10) is made of PVC tubing, and the second block (10) is spherical.
5. The external chain telescopic DNA structural model convenient for disassembly as claimed in claim 3, wherein the gasket (14) is made of a rubber tube, the limiting rod (13) penetrates through the gasket (14), and the gasket (14) is slidably connected with the connecting rod (15), the sliding block (9) and the external chain (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121991197.1U CN216053524U (en) | 2021-08-23 | 2021-08-23 | Outer chain telescopic DNA structural model convenient to disassemble |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121991197.1U CN216053524U (en) | 2021-08-23 | 2021-08-23 | Outer chain telescopic DNA structural model convenient to disassemble |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216053524U true CN216053524U (en) | 2022-03-15 |
Family
ID=80560152
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121991197.1U Expired - Fee Related CN216053524U (en) | 2021-08-23 | 2021-08-23 | Outer chain telescopic DNA structural model convenient to disassemble |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216053524U (en) |
-
2021
- 2021-08-23 CN CN202121991197.1U patent/CN216053524U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220315 |