CN215761108U - Door opening and closing device mechanism for tension spring of biological safety cabinet - Google Patents
Door opening and closing device mechanism for tension spring of biological safety cabinet Download PDFInfo
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- CN215761108U CN215761108U CN202122037157.XU CN202122037157U CN215761108U CN 215761108 U CN215761108 U CN 215761108U CN 202122037157 U CN202122037157 U CN 202122037157U CN 215761108 U CN215761108 U CN 215761108U
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- tension spring
- pulley
- connecting block
- fixing plate
- cross beam
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- 239000004677 Nylon Substances 0.000 claims abstract description 21
- 229920001778 nylon Polymers 0.000 claims abstract description 21
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 12
- 239000010959 steel Substances 0.000 claims abstract description 12
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 230000000712 assembly Effects 0.000 claims 1
- 238000000429 assembly Methods 0.000 claims 1
- 239000000725 suspension Substances 0.000 abstract description 6
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000010353 genetic engineering Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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Abstract
The utility model discloses a door opening and closing device mechanism for a bio-safety cabinet by using a tension spring, which comprises a tension spring cross beam, tension spring components, tension spring fixing blocks, flange nuts and set screws, wherein the tension spring components are fixedly arranged on the surface of the tension spring cross beam and are symmetrically distributed, the tension spring fixing blocks are respectively and fixedly connected to two ends of the tension spring cross beam, the set screws are fixedly connected between the two ends of the tension spring cross beam and the tension spring fixing blocks, the flange nuts are fixedly connected between the tension spring fixing blocks and the tension spring cross beam, each tension spring component comprises a nylon pull rope, a hook, a pulley fixing plate, a tension spring connecting block, a tension spring and a channel steel, the pulley fixing plate, the tension spring connecting block and the tension spring are embedded in the channel steel from left to right, and small pulleys which are rotatably connected are arranged in the pulley fixing plate and the tension spring connecting block. The utility model greatly improves the sliding smoothness of the opening and closing door, improves the stability of the opening and closing door, ensures the structural safety of the opening and closing door and avoids the suspension system from falling off due to failure by adopting the nylon pull rope, the big pulley, the small pulley and the tension spring.
Description
Technical Field
The utility model relates to the technical field of biochemical instruments, in particular to a tension spring door opening and closing device mechanism of a biological safety cabinet.
Background
With the development of the biological safety cabinet technology, the biological safety cabinet is widely applied to scientific research, teaching, clinical examination and production in the fields of microbiology, biomedicine, genetic engineering, biological products and the like, and is the most basic safety protection equipment in the first-level protection barriers in the biological safety of laboratories.
The safety cabinet on the market at present adopts the design of balancing weight mostly, can appear obviously controlling or rock around, and it is also unsmooth to slide, and it is possible to bring danger, the security is not high for the operator to drop when suspension breaks down. For this reason, a new technical solution needs to be designed for solution.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a door opening and closing device mechanism of a biological safety cabinet by using a tension spring, which solves the problems that the object safety cabinet is not smooth to slide and a suspension system has potential safety hazards in the prior art.
In order to achieve the purpose, the utility model provides the following technical scheme: a door opening and closing device mechanism for a biological safety cabinet tension spring comprises a tension spring cross beam, a tension spring assembly, tension spring fixing blocks, flange nuts and set screws, wherein the tension spring assembly is symmetrically arranged on the surface of the tension spring cross beam, the tension spring fixing blocks are respectively and fixedly connected to the two ends of the tension spring cross beam, the set screws are fixedly connected between the two ends of the tension spring cross beam and the tension spring fixing blocks, the flange nuts are fixedly connected between the tension spring fixing blocks and the tension spring cross beam, the tension spring assembly comprises a nylon pull rope, a hook, a pulley fixing plate, a tension spring connecting block, a tension spring and a channel steel, the pulley fixing plate, the tension spring connecting block and the tension spring are embedded in the channel steel from left to right, small pulleys which are rotatably connected are arranged in the pulley fixing plate and the tension spring connecting block, a large pulley is further arranged on the surface of the pulley fixing plate, and a nylon pull rope is arranged between the large pulley and the small pulleys, the hook is embedded in the outer side end of the pulley fixing plate.
As an improvement of the technical scheme, the end part of the tension spring beam is provided with a mounting hole, and the tension spring fixing blocks are distributed in a U shape.
As an improvement of the technical scheme, one end of the nylon pull rope is fixedly connected with the tension spring connecting block, and the other end of the nylon pull rope is fixedly connected with the hook.
As an improvement of the technical scheme, pin holes are formed in the surfaces of the pulley fixing plate and the tension spring connecting block, and flat head primary and secondary rivets I are embedded into the pin holes.
As an improvement of the technical scheme, one end of the tension spring is fixedly connected with the tension spring connecting block, and the other end of the tension spring is provided with a flat head primary-secondary rivet II penetrating through the steel groove.
Compared with the prior art, the utility model has the beneficial effects that:
the utility model greatly improves the sliding smoothness of the opening and closing door, improves the stability of the opening and closing door, ensures the structural safety of the opening and closing door and avoids the falling of a suspension system due to the failure by adopting the nylon pull rope, the large pulley, the small pulley and the tension spring.
Drawings
FIG. 1 is a schematic structural view of a door opening and closing device mechanism of a biological safety cabinet with a tension spring according to the present invention;
fig. 2 is a schematic diagram of an explosive structure of the tension spring assembly according to the present invention.
In the figure: the tension spring comprises a tension spring beam-1, a tension spring assembly-2, a tension spring fixing block-3, a flange nut-4, a set screw-5, a nylon pull rope-6, a hook-7, a pulley fixing plate-8, a tension spring connecting block-9, a tension spring-10, a channel steel-11, a small pulley-12, a large pulley-13, a mounting hole-14, a pin hole-15, a flat head snap rivet I-16 and a flat head snap rivet II-17.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
Referring to fig. 1-2, the present invention provides a technical solution: a door opening and closing device mechanism of a bio-safety cabinet tension spring comprises a tension spring cross beam 1, tension spring components 2, tension spring fixing blocks 3, flange nuts 4 and set screws 5, wherein the tension spring components 2 are symmetrically distributed and fixedly mounted on the surface of the tension spring cross beam 1, the tension spring fixing blocks 3 are respectively and fixedly connected at two ends of the tension spring cross beam 1, the set screws 5 are fixedly connected between the tension spring fixing blocks 3 and the tension spring cross beam 1, the flange nuts 4 are fixedly connected between the tension spring fixing blocks 3 and the tension spring cross beam 1, the tension spring components 2 comprise nylon pull ropes 6, hooks 7, pulley fixing plates 8, tension spring 10 connecting blocks 9, tension springs 10 and channel steel 11, the pulley fixing plates 8, the tension spring 10 connecting blocks 9 and the tension springs are embedded in the channel steel 11 from left to right, small pulleys 12 which are rotatably connected are arranged in the pulley fixing plates 8 and the tension spring 10 connecting blocks 9, and large pulleys 13 are further arranged on the surface of the pulley fixing plates 8, a nylon pull rope 6 is arranged between the big pulley 13 and the small pulley 12, and the hook 7 is embedded in the outer side end of the pulley fixing plate 8.
Further improved, mounting hole 14 has been seted up to the tip of extension spring crossbeam 1, extension spring fixed block 3 is the distribution of U-shaped, has seted up mounting hole 14 through the tip at extension spring crossbeam 1, conveniently carries out fixed mounting to extension spring crossbeam 1.
Further improved ground, the one end and the extension spring 10 connecting block 9 fixed connection of nylon stay cord 6, the other end and the couple 7 fixed connection of nylon stay cord 6, through using nylon stay cord 6 to connect couple 7 and extension spring 10 connecting block 9, the big pulley 13 and the small pulley 12 that the cooperation winding is connected improve the stability of nylon stay cord 6 motion.
In a further improvement mode, pin holes 15 are formed in the surfaces of the pulley fixing plate 8 and the tension spring 10 connecting block 9, flat head snap rivets I16 are embedded into the pin holes 15, and the large pulley 13 and the small pulley 12 can be conveniently connected with the pulley fixing plate 8 and the tension spring 10 connecting block 9 by penetrating the pin holes 15 through the flat head snap rivets I16.
Specifically, the improvement is that one end of extension spring 10 and extension spring 10 connecting block 9 fixed connection, the other end of extension spring 10 is equipped with the crew cut primary and secondary rivet II17 that runs through the steel bay, is equipped with crew cut primary and secondary rivet II17 through the other end at extension spring 10, conveniently fixes extension spring 10.
The utility model relates to a tension spring beam-1, a tension spring component-2, a tension spring fixed block-3, a flange nut-4, a set screw-5, a nylon pull rope-6, a hook-7, a pulley fixed plate-8, a tension spring connecting block-9, a tension spring-10, a channel steel-11, a small pulley-12, a large pulley-13, a mounting hole-14, a pin hole-15, a flat head snap rivet I-16 and a flat head snap rivet II-17, wherein the components are all universal standard components or components known by technicians in the field, and the structure and principle of the components can be known by technical manuals or conventional experimental methods, the utility model greatly improves the sliding smoothness of a switch door by adopting the nylon pull rope 6, the large pulley 13, the small pulley 12 and the tension spring 10, meanwhile, the stability of opening and closing the door is improved, the structural safety of opening and closing the door is guaranteed, and the suspension system is prevented from falling off due to failure.
When the door opening and closing device is used, the door opening and closing movement is carried out, the hook 7 drives the nylon pull rope 6 to move along the surfaces of the large pulley 13 and the small pulley 12, the connecting block 9 of the tension spring 10 is driven to move in the channel steel 11, and the tension spring 10 is driven to carry out telescopic movement, so that the stability of a suspension system is improved, and meanwhile, the smoothness and the safety are brought to the door opening and closing.
While there have been shown and described what are at present considered the fundamental principles and essential features of the utility model and its advantages, it will be apparent to those skilled in the art that the utility model is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (5)
1. The utility model provides a biosafety cabinet extension spring switch door gear mechanism, includes extension spring crossbeam (1), extension spring subassembly (2), extension spring fixed block (3), flange nut (4) and holding screw (5), its characterized in that: the tension spring assembly is characterized in that tension spring assemblies (2) which are symmetrically distributed are fixedly mounted on the surface of each tension spring cross beam (1), two ends of each tension spring cross beam (1) are respectively and fixedly connected with tension spring fixing blocks (3) and fastening screws (5) fixedly connected between the tension spring fixing blocks (3) and the tension spring cross beams (1), each tension spring assembly (2) comprises a nylon stay cord (6), a hook (7), a pulley fixing plate (8), a tension spring (10) connecting block (9), a tension spring (10) and a channel steel (11), the pulley fixing plate (8), the tension spring (10) connecting block (9) and the tension spring (10) are embedded in the channel steel (11) from left to right, small pulleys (12) which are rotatably connected are arranged in the pulley fixing plate (8) and the tension spring (10) connecting block (9), and large pulleys (13) are further arranged on the surface of the pulley fixing plate (8), a nylon pull rope (6) is arranged between the large pulley (13) and the small pulley (12), and the hook (7) is embedded in the outer side end of the pulley fixing plate (8).
2. The mechanism of claim 1, wherein the mechanism comprises: the end part of the tension spring cross beam (1) is provided with a mounting hole (14), and the tension spring fixing blocks (3) are distributed in a U shape.
3. The mechanism of claim 1, wherein the mechanism comprises: one end of the nylon pull rope (6) is fixedly connected with the connecting block (9) of the tension spring (10), and the other end of the nylon pull rope (6) is fixedly connected with the hook (7).
4. The mechanism of claim 1, wherein the mechanism comprises: the pulley fixing plate (8) and the tension spring (10) are connected with the connecting block (9) through the connecting block, pin holes (15) are formed in the surfaces of the pulley fixing plate (8) and the tension spring (10) respectively, and flat head primary and secondary rivets I (16) are embedded into the pin holes (15).
5. The mechanism of claim 1, wherein the mechanism comprises: one end of the tension spring (10) is fixedly connected with the connecting block (9) of the tension spring (10), and the other end of the tension spring (10) is provided with a flat head primary-secondary rivet II (17) penetrating through the steel groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122037157.XU CN215761108U (en) | 2021-08-27 | 2021-08-27 | Door opening and closing device mechanism for tension spring of biological safety cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122037157.XU CN215761108U (en) | 2021-08-27 | 2021-08-27 | Door opening and closing device mechanism for tension spring of biological safety cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215761108U true CN215761108U (en) | 2022-02-08 |
Family
ID=80079108
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122037157.XU Active CN215761108U (en) | 2021-08-27 | 2021-08-27 | Door opening and closing device mechanism for tension spring of biological safety cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215761108U (en) |
-
2021
- 2021-08-27 CN CN202122037157.XU patent/CN215761108U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20231027 Address after: Building 16, No. 201 Minyi Road, Songjiang District, Shanghai, 200000 Patentee after: SHANGHAI TIANMEI BIOCHEMICAL INSTRUMENT AND EQUIPMENT ENGINEERING CO.,LTD. Address before: 201600 floors 3-5, building 16, No. 201, Minyi Road, Songjiang District, Shanghai Patentee before: SHANGHAI TECHCOMP INSTRUMENT Ltd. |