CN110306894A - A kind of laboratory hood glass door guide rail mechanism and device - Google Patents
A kind of laboratory hood glass door guide rail mechanism and device Download PDFInfo
- Publication number
- CN110306894A CN110306894A CN201910398955.XA CN201910398955A CN110306894A CN 110306894 A CN110306894 A CN 110306894A CN 201910398955 A CN201910398955 A CN 201910398955A CN 110306894 A CN110306894 A CN 110306894A
- Authority
- CN
- China
- Prior art keywords
- mounting groove
- guide rail
- sliding
- fixed
- groove
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B13/00—Accessories or details of general applicability for machines or apparatus for cleaning
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B15/00—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area
- B08B15/02—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area using chambers or hoods covering the area
- B08B15/023—Fume cabinets or cupboards, e.g. for laboratories
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
- E05D13/00—Accessories for sliding or lifting wings, e.g. pulleys, safety catches
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
- E05D15/00—Suspension arrangements for wings
- E05D15/06—Suspension arrangements for wings for wings sliding horizontally more or less in their own plane
- E05D15/0621—Details, e.g. suspension or supporting guides
- E05D15/066—Details, e.g. suspension or supporting guides for wings supported at the bottom
- E05D15/0678—Details, e.g. suspension or supporting guides for wings supported at the bottom on balls or floating rollers
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Securing Of Glass Panes Or The Like (AREA)
- Support Devices For Sliding Doors (AREA)
Abstract
The present invention relates to a kind of laboratory hood glass door guide rail mechanism and devices, include: guide rail body, and length direction is equipped with and the consistent sliding groove of its length direction；Glass fixing device comprising be arranged in the sliding block being slidably connected in the sliding groove and with the sliding groove inner sidewall, be fixed at fixed block of the sliding block far from described guide rail body one end；Ball, is set as being arranged in parallel and at interval multiple, and multiple balls uniformly arrange and are correspondingly arranged at the sliding block two sidewalls, and each ball one side wall is fixed on the sliding block, another side wall is contacted with the sliding groove inner sidewall.The present invention adds ball between guide rail body inner sidewall and sliding block, reduces the contact surface between sliding block and guide rail body, so that the kinematic friction coefficient of guide rail body is reduced, to generate abrasion after avoiding sliding block from sliding for a long time in guide rail body.
Description
Technical field
The present invention relates to laboratory equipment technical field, in particular to a kind of laboratory hood glass door guide rail mechanism and
Device.
Background technique
Vent cabinet is an indispensable component part in laboratory ventilation design.In order to ensure the body of experimenter
Health should all be grasped as long as being related to the experiment of poisonous and harmful, irritant smell, escaping gas etc. in vent cabinet
Make.The maximum mission that vent cabinet uses in laboratory is exactly the safety in order to guarantee experimenter, but most of vent cabinets at present
Window is mostly to be slidably mounted in the middle part of vent cabinet, and guide rail provides moving track for window；In the prior art, window exists
On guide rail after long-term work sliding, abrasion is generated, the gap between the guide rail and window after abrasion increases, and window is caused to exist
It misplaces in sliding process.
Summary of the invention
To achieve the above object, the technical solution of the present invention is to provide a kind of laboratory hood glass door guide rail mechanism,
Include:
Guide rail body, length direction are equipped with and the consistent sliding groove of its length direction；
Glass fixing device comprising be arranged in the cunning being slidably connected in the sliding groove and with the sliding groove inner sidewall
Block is fixed at fixed block of the sliding block far from described guide rail body one end；
Ball, is set as being arranged in parallel and at interval multiple, and multiple balls uniformly arrange and are correspondingly arranged at the sliding block
Two sidewalls, each ball one side wall is fixed on the sliding block, another side wall is contacted with the sliding groove inner sidewall.
In order to slide ball preferably in guide rail body, and the kinematic friction coefficient of guide rail body is reduced, the present invention
Technical solution be that the sliding groove sidewall is equipped with the ball grooves that are vertically arranged and are adapted to the ball, the ball grooves
Section is set as semicircle.
In order to be capable of fixing glass on glass fixing device, the technical scheme is that, the fixed block is separate
The side of sliding block is equipped with glass clamping groove.
In one embodiment, in order to make glass door after being moved to designated position, needed for glass door being fixed on
Highly, the technical scheme is that, the sliding block is equipped with limiting device far from one end side wall middle position of the fixed block
Mounting groove, each limiting device mounting groove is interior to be equipped with limiting device.
In order to be fixed on the sliding block of glass fixing device in guide rail body, to guarantee that glass door is moving up and down
It hovers after reaching designated position in the process, the technical scheme is that, the limiting device includes being set to the limit
The sliding shoe being slidably connected in device mounting groove and with the limiting device mounting groove inner sidewall, the sliding block size and institute
State limiting device mounting groove size fit, the sliding shoe bottom is equipped with the first spring, in the limiting device mounting groove slot bottom
Between be equipped with the first spring fixing groove, first spring one end is fixed in first spring fixing groove, the other end is fixed on
For the sliding shoe close to an end face of the limiting device mounting groove slot bottom, the section of the sliding shoe is set as T-type, the sliding
Block includes the sliding seat of size and the limiting device mounting groove size fit and is fixed at the sliding seat far from described
Fixture block on the side of first spring, one end side wall of the fixture block far from the sliding seat is by close to far from the sliding seat
Direction on be obliquely installed and close to the sliding seat side width be greater than far from the sliding seat side width, the limit
The limit plate of size and the limiting device mounting groove size fit is equipped at the notch of position device mounting groove, in the limit plate
Meta position installs the through-hole being adapted to the fixture block, and the limit plate is sheathed on the outside of the fixture block and lateral wall correspondence is fixed on
The notch inner sidewall of the limiting device mounting groove.
In order to be fixed on the sliding block of glass fixing device in guide rail body, to guarantee that glass door is moving up and down
It hovers after reaching designated position in the process, the technical scheme is that, the sliding groove inner sidewall in the guide rail body
Multiple limiting slots that parallel and interval is arranged and is adapted to the fixture block are equipped with, multiple limiting slots are along the guide rail body
The setting of length direction interval.
In one embodiment, in order to ball to be fixed in sliding, and ball is reduced to track ontology inner sidewall
Abrasion, the technical scheme is that, the sliding block is equipped with multiple first far from one end side wall two sides position of the fixed block
Groove, is equipped with fixed device in each first groove, and the fixed device includes that described the is fixed on by the first holding pin
In one groove and fastening seat compatible with first groove size, the fastening seat side wall are equipped with first through setting
Shape hole, the two sidewalls of each first groove sustained height are correspondingly provided with fixation hole, and the fastening seat bottom surface is equipped with column, described
Second spring is arranged with outside column, the first bottom portion of groove inner wall is equipped with second spring corresponding with the second spring and fixes
Slot, described second spring one end is sheathed on the column, the other end is fixed on second spring fixing groove bottom, described tight
Gu seat is equipped with ball fixing groove far from an end face of the column, the ball is fixed in the ball fixing groove, each institute
It states the first holding pin and sequentially passes through the fixation hole and its corresponding first strip-shaped hole and the fastening seat is fixed on described first
In groove.
In one embodiment, glass door is made to hit ventilation sales counter in order to avoid in the process of moving up and down, overexerting
Face, the technical scheme is that, the sliding block bottom surface is equipped with buffer unit mounting groove, is equipped in the buffer unit mounting groove
Buffer unit, the buffer unit include be fixed on by the second holding pin the buffer unit mounting groove it is interior and with the buffering
The compatible buffing pad of device mounting groove size, the buffing pad side wall are equipped with the second strip-shaped hole through setting, the buffering
The two sidewalls of device mounting groove sustained height are correspondingly provided with fixation hole, and the buffing pad bottom surface is equipped with fastening column, the fastening column
It is arranged with third spring outside, the buffer unit mounting groove bottom interior wall is equipped with third spring corresponding with the third spring
Fixing groove, the third spring one end is sheathed on the fastening column, the other end is fixed on third spring fixing groove bottom,
Be equipped with fixing seat of the buffing pad far from the fastening column, the outer diameter of the fixing seat are less than the outer diameter of the buffing pad, institute
It states fixing seat and is equipped with cushion mounting groove far from an end face of the buffing pad, be equipped with buffering in the cushion mounting groove
Pad, is equipped with the stop collar with the fixing seat size fit at the notch of the buffer unit mounting groove, among the stop collar
Equipped with the through-hole being adapted to the fixing seat, the stop collar is sheathed on the outside of the fixing seat and lateral wall correspondence is fixed on institute
The notch inner sidewall of buffer unit mounting groove is stated, second holding pin sequentially passes through the fixation hole and its corresponding Article 2
The buffing pad is fixed in the buffer unit mounting groove by shape hole.
In one embodiment, after working long hours in order to avoid guide rail body, a large amount of dusts can be adsorbed on inner wall, thus
Particulate dust is avoided to increase in glass door moving process to the abrasion inside guide rail body, the technical scheme is that,
The sliding block is equipped with one or more hairbrush mounting grooves far from one end side wall of the fixed block, is equipped in the hairbrush mounting groove
Cleaning brush, the cleaning brush include being arranged in the hairbrush mounting groove and being slidably connected with the hairbrush mounting groove inner sidewall
Supporting block is fixed at hairbrush of the supporting block far from hairbrush mounting groove one end, is symmetrically set in the hairbrush both ends
Shutter and the 4th spring between the support plate and the bottom of the hairbrush mounting groove, the 4th spring one
Supporting block bottom is fixed at end, the other end is fixed on the bottom of the hairbrush mounting groove, the supporting block include be arranged in it is described
The clamping block that is slidably connected in hairbrush mounting groove and with the hairbrush mounting groove inner sidewall is fixed at the clamping block far from institute
State the link block of the 4th spring one end, the size fit of the size of the clamping block and the hairbrush mounting groove, the link block
It is connect with the hairbrush, the lateral wall of the clamping block is uniformly provided with multiple second grooves, is equipped in each second groove slow
Flushing device.
A kind of laboratory hood glass door track-type facilities provided in an embodiment of the present invention, comprising:
Symmetrically arranged laboratory hood glass door guide rail mechanism and it is arranged in two laboratory hood glass
Glass door between glass door guide rail mechanism, wherein the laboratory hood glass door guide rail mechanism is that claim is any into
Laboratory hood glass door guide rail mechanism described in.
Other features and advantages of the present invention will be illustrated in the following description, also, partly becomes from specification
It obtains it is clear that understand through the implementation of the invention.The objectives and other advantages of the invention can be by written explanation
Specifically noted structure is achieved and obtained in book, claims and attached drawing.
Below by drawings and examples, technical scheme of the present invention will be described in further detail.
Detailed description of the invention
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art be briefly described, it should be apparent that, it is described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, is also possible to obtain other drawings based on these drawings.
Fig. 1 is a kind of structure of the laboratory hood glass door guide rail mechanism provided in one embodiment of the present invention
Schematic diagram；
Fig. 2 is the top view of laboratory hood glass door guide rail mechanism shown in FIG. 1；
Fig. 3 is enlarged diagram at the A in Fig. 1；
Fig. 4 is enlarged diagram at the B in Fig. 2；
Fig. 5 is a kind of structure of the laboratory hood glass door guide rail mechanism provided in another embodiment of the present invention
Schematic diagram；
Fig. 6 is enlarged diagram at the C in Fig. 5；
Fig. 7 is a kind of vertical view of the laboratory hood glass door guide rail mechanism provided in another embodiment of the present invention
Figure；
Fig. 8 is the structural schematic diagram of cleaning brush shown in fig. 7；
Fig. 9 is the side sectional view of cleaning brush shown in fig. 8；
Figure 10 is a kind of laboratory hood glass door track-type facilities provided in another embodiment of the invention
Overall structure diagram；
Figure 11 is the schematic diagram of warning device in another embodiment of the invention；
Figure 12 is the structure chart of overvoltage crowbar in warning device in another embodiment of the invention；
Figure 13 is the structure chart of power amplification circuit in warning device in safety management system of the invention.
In figure: 1: guide rail body；2: glass fixing device；3: ball；4: fixed device；5: limiting device；6: buffering dress
It sets；8: cleaning brush；9: glass door；1-1: sliding groove；2-1: sliding block；2-2: fixed block；1-11: limiting slot；1-12: ball grooves；
2-11: limiting device mounting groove；2-12: the first groove；2-13: buffer unit mounting groove；2-14: hairbrush mounting groove；2-21: glass
Glass clamping groove；2-111: the first spring fixing groove；2-121: second spring fixing groove；2-131: third spring fixing groove；4-1:
Fasten seat；4-2: column；4-3: second spring；4-11: the first strip-shaped hole；5-1: sliding shoe；5-2: the first spring；5-3: limit
Plate；5-11: sliding seat；5-12: fixture block；6-1: buffing pad；6-2: fastening column；6-3: third spring；6-4: cushion；6-5: limit
Position ring；6-11: the second strip-shaped hole；7-1: the first holding pin；7-2: the second holding pin；8-1: supporting block；8-2: hairbrush；8-3: it hides
Baffle；8-4: the four spring；8-11: clamping block；8-12: link block.
Specific embodiment
Technical solution of the present invention is clearly and completely described below in conjunction with attached drawing, it is clear that described implementation
Example is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill
Personnel's every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that term " first ", " second ", " third " are used for description purposes only,
It is not understood to indicate or imply relative importance.In addition, involved in invention described below different embodiments
Technical characteristic can be combined with each other as long as they do not conflict with each other.
As shown in Figures 1 to 9, a kind of laboratory hood glass door guide rail mechanism provided by the invention, comprising:
Guide rail body 1, length direction are equipped with and the consistent sliding groove 1-1 of its length direction；
Glass fixing device 2 comprising be arranged in the sliding groove 1-1 and slided with the sliding groove 1-1 inner sidewall
The sliding block 2-1 of connection, it is fixed at fixed block 2-2 of the sliding block 2-1 far from described 1 one end of guide rail body；
Ball 3, is set as being arranged in parallel and at interval multiple, and multiple balls 3 uniformly arrange and are correspondingly arranged at the cunning
The two sidewalls block 2-1, each 3 one side wall of ball are fixed on the sliding block 2-1, on the inside of another side wall and the sliding groove 1-1
Wall contact.
The working principle of the invention and the utility model has the advantages that
In the present invention, adding ball with the sliding block two sidewalls that contact of sliding groove sidewall, sliding block in sliding groove on move down
When dynamic, the ball on sliding block is slided on the inner sidewall of guide rail body, by reducing the contact between sliding block and guide rail body
Face, and the friction between sliding block and the inner sidewall of guide rail body is reduced, so that the kinematic friction coefficient of guide rail body is reduced, thus
Abrasion is generated after avoiding sliding block from sliding for a long time in guide rail body, the gap between the guide rail and glass door after abrasion increases,
To avoid glass door during moving up and down from misplacing in guide rail.
In order to slide ball preferably in guide rail body, and the kinematic friction coefficient of guide rail body is reduced, the present invention
Preferred embodiment is, as shown in Fig. 2, the sliding groove 1-1 side wall is equipped with the rolling for being vertically arranged and being adapted to the ball 3
Pearl slot 1-12, the section of the ball grooves 1-12 are set as semicircle.
In order to be capable of fixing glass on glass fixing device, the preferred embodiment of the invention is, as shown in Fig. 2,
The fixed block 2-2 is equipped with glass clamping groove 2-21 far from the side of sliding block 2-1.
In one embodiment, in order to make glass door after being moved to designated position, needed for glass door being fixed on
Highly, the preferred embodiment of the invention is, as shown in Figure 1 and Figure 2, the one end of the sliding block 2-1 far from the fixed block 2-2
Side wall middle position is equipped with limiting device mounting groove 2-11, is equipped with limiting device 5 in each limiting device mounting groove 2-11.
In order to be fixed on the sliding block of glass fixing device in guide rail body, to guarantee that glass door is moving up and down
It hovers after reaching designated position in the process, the preferred embodiment of the invention is, as shown in figure 3, the limiting device 5 wraps
Include the sliding for being set to and being slidably connected in the limiting device mounting groove 2-11 and with the limiting device mounting groove 2-11 inner sidewall
Block 5-1, the sliding shoe 5-1 size and the limiting device mounting groove 2-11 size fit, the bottom the sliding shoe 5-1 is equipped with
First spring 5-2, the limiting device mounting groove 2-11 slot bottom centre is equipped with the first spring fixing groove 2-111, first bullet
Spring 5-2 is fixed on one end in the first spring fixing groove 2-111, the other end is fixed on the sliding shoe 5-1 close to the limit
One end face of position device mounting groove 2-11 slot bottom, the section of the sliding shoe 5-1 are set as T-type, and the sliding shoe 5-1 includes size
With the sliding seat 5-11 of the limiting device mounting groove 2-11 size fit and be fixed at the sliding seat 5-11 far from institute
One end side wall of fixture block 5-12, the fixture block 5-12 far from the sliding seat 5-11 on the side of the first spring 5-2 is stated by leaning on
Closely to far from the sliding seat 5-11 direction on be obliquely installed and close to the side the sliding seat 5-11 width be greater than it is separate
The width of the side the sliding seat 5-11 is equipped with size and the limiting device at the notch of the limiting device mounting groove 2-11
The limit plate 5-3 of mounting groove 2-11 size fit, the middle position the limit plate 5-3 are logical equipped with what is be adapted to the fixture block 5-12
Hole, the limit plate 5-3 is sheathed on the outside of the fixture block 5-12 and lateral wall correspondence is fixed on the limiting device mounting groove 2-
11 notch inner sidewall.
In order to be fixed on the sliding block of glass fixing device in guide rail body, to guarantee that glass door is moving up and down
It hovers after reaching designated position in the process, the preferred embodiment of the invention is, as shown in figure 3, in the guide rail body 1
Sliding groove 1-1 inner sidewall be equipped with parallel and interval setting and multiple limiting slot 1-11 for being adapted to the fixture block 5-12, it is more
A limiting slot 1-11 is arranged along the 1 length direction interval of guide rail body.
The working principle and beneficial effect of the present embodiment are as follows:
In the present embodiment, the elastic force of first spring is greater than the gravity of the glass door, the limiting device mounting groove
It is interior equipped with the sliding seat being slidably connected with the limiting device mounting groove, the sliding seat is filled relative to the limit
It sets mounting groove to be slided, while not being separated again with limiting device mounting groove, by being arranged in the limiting device mounting groove
First spring, first spring is towards the sliding seat is oppressed in the limiting device mounting groove top-direction, so that institute
Sliding seat is stated to slide under the action of without other external force along the limiting device mounting groove top-direction.The fixture block side is by leaning on
Closely to being obliquely installed on the direction far from the sliding seat and be greater than close to the width of the sliding seat side far from the sliding
The width of seat side, and guide rail body inner sidewall is equipped with the limiting slot that with fixture block cooperation and inner sidewall is obliquely installed, because
During this is moved up, when fixture block is moved to limiting slot corresponding position, described fixture block one end is embeddable to arrive the guide rail sheet
Inside the limiting slot of body, since the elastic force of the first spring is greater than the gravity of glass door, in the effect of no external force, the fixture block
It is arranged in inside the limiting slot of the guide rail body；When there is external force upward or downward, the fixture block can be from limit
It is taken out in slot.
When pushing up glass door and (fixture block is moved to limit the sliding block of glass fixing device is pushed up to designated position
Position slot corresponding position) when, inside the embeddable limiting slot to the guide rail body in described fixture block one end, at this point, the fixture block and
The limiting slot inner sidewall contact, so that the limiting slot inner sidewall applies an active force to fixture block, due to the limiting slot
The angle of inner sidewall and the guide rail body inner wall is set as obtuse angle, thus the work that the limiting slot inner sidewall applies sliding seat
Two active forces parallel and perpendicular to pushing direction can be firmly decomposed into, are pushed perpendicular to the active force of pushing direction
The fixture block is to the limiting device mounting groove basal sliding, and when fixture block enters limiting slot, work of the fixture block in the first spring
Under firmly, fixture block is arranged in limiting slot by sliding seat to sliding at the notch of limiting device mounting groove, thus by glass
The sliding block of fixed device is fixed in guide rail body.Conversely, as the fixture block side is by close to far from the sliding seat
It is obliquely installed on direction and is greater than the width far from the sliding seat side close to the width of the sliding seat side, and described led
Rail inner body wall is equipped with the limiting slot that with fixture block cooperation and inner sidewall is obliquely installed, when pulling downward on glass door, fixture block
The side wall of bottom surface applies active force to limit groove bottom, and (gravity of downward external force and glass door itself is greater than described the
The elastic force of one spring), limiting slot has a reaction force to fixture block, so that fixture block is squeezed, the first spring in sliding seat bottom
Active force under, make the fixture block to the limiting device mounting groove basal sliding, so that the fixture block leaves the limit
Position slot, to make sliding block can be to move down under the action of the sliding groove of guide rail body.
In one embodiment, in order to ball to be fixed in sliding, and ball is reduced to track ontology inner sidewall
Abrasion, the preferred embodiment of the invention is, as shown in Figure 2, Figure 4 shows, the one end of the sliding block 2-1 far from the fixed block 2-2
Two side position of side wall is equipped with multiple first groove 2-12, and fixed device 4, the fixed dress are equipped in each first groove 2-12
Setting 4 includes being fixed on by the first holding pin 7-1 in the first groove 2-12 and mutually being fitted with the first groove 2-12 size
The fastening seat 4-1 matched, the fastening seat 4-1 side wall are equipped with the first strip-shaped hole 4-11, each first groove 2- through setting
The two sidewalls of 12 sustained heights are correspondingly provided with fixation hole, and the fastening bottom surface seat 4-1 is equipped with column 4-2, the column 4-2 housing
Equipped with second spring 4-3, the first groove 2-12 bottom interior wall is solid equipped with second spring corresponding with the second spring 4-3
Determine slot 2-121, the one end the second spring 4-3 is sheathed on the column 4-2, the other end is fixed on the second spring and fixes
The bottom slot 2-121, the fastening seat 4-1 are equipped with ball fixing groove far from an end face of the column 4-2, and the ball 3 is solid
Due in the ball fixing groove, each first holding pin 7-1 sequentially passes through the fixation hole and its corresponding first bar shaped
The fastening seat 4-1 is fixed in the first groove 2-12 by hole 4-11.
The working principle and beneficial effect of the present embodiment are as follows:
The sliding block two sides are correspondingly provided with the first groove, and first recess sidewall is equipped with the fixation of the first holding pin
Hole, first holding pin is successively arranged in the fixation hole on first groove and fastens the first strip-shaped hole on seat, described
Set at regular intervals between two centers of the first strip-shaped hole, first holding pin is fixed on the fixation hole on first groove
Interior, the first strip-shaped hole on the fastening seat slides up and down fastening seat on the first fixed holding pin；When to
When above or moving down sliding block, when sliding block moves up and down in sliding groove, the ball on sliding block is in the inner sidewall of guide rail body
Upper sliding, after long-time use, the sliding of ball and guide rail body inner sidewall for a long time will cause the mill of guide rail body inner sidewall
Damage, the fastening seat being fixedly connected with ball can horizontally slip in the first groove, while fasten seat and the first bottom portion of groove equipped with the
Two springs, make ball can under the action of second spring direction guiding rail ontology inner sidewall it is mobile, and can under the effect of external force to
The bottom of first groove moves, that is, moves when resistance is excessive when moving up and down to the bottom of the first groove, make ball far from guide rail
Body bottom portion, to cause to wear to guide rail body inner sidewall when ball being avoided to encounter larger resistance during moving up and down.
In one embodiment, glass door is made to hit ventilation sales counter in order to avoid in the process of moving up and down, overexerting
Face, the preferred embodiment of the invention are that as shown in Figure 5, Figure 6, the bottom surface the sliding block 2-1 is equipped with buffer unit mounting groove 2-
Buffer unit 6 is equipped in 13, the buffer unit mounting groove 2-13, the buffer unit 6 includes solid by the second holding pin 7-2
Due in the buffer unit mounting groove 2-13 and buffing pad 6-1 compatible with the buffer unit mounting groove 2-13 size,
The buffing pad 6-1 side wall is equipped with the second strip-shaped hole 6-11 through setting, the buffer unit mounting groove 2-13 sustained height
Two sidewalls be correspondingly provided with fixation hole, the bottom surface the buffing pad 6-1 is equipped with fastening column 6-2, and the fastening column 6-2 is arranged with the outside
Three spring 6-3, the buffer unit mounting groove 2-13 bottom interior wall are equipped with third spring corresponding with the third spring 6-3
Fixing groove 2-131, described one end third spring 6-3 is sheathed on the fastening column 6-2, the other end is fixed on the third spring
The bottom fixing groove 2-131, the buffing pad 6-1 are equipped with fixing seat far from the fastening column 6-2's, and the outer diameter of the fixing seat is small
In the outer diameter of the buffing pad 6-1, the fixing seat is equipped with cushion mounting groove far from an end face of the buffing pad 6-1,
It is equipped with cushion 6-4 in the cushion mounting groove, is equipped with and the fixation at the notch of the buffer unit mounting groove 2-13
The through-hole being adapted to the fixing seat, the stop collar are equipped among the stop collar 6-5, the stop collar 6-5 of seat size fit
6-5 is sheathed on the outside of the fixing seat and the corresponding notch inner sidewall for being fixed on the buffer unit mounting groove 2-13 of lateral wall,
The second holding pin 7-2 sequentially passes through the fixation hole and its corresponding second strip-shaped hole 6-11 consolidates the buffing pad 6-1
Due in the buffer unit mounting groove 2-13.
The working principle and beneficial effect of the present embodiment are as follows:
The sliding block bottom surface is equipped with buffer unit mounting groove, and the buffer unit installation groove sidewall is equipped with the second holding pin
Fixation hole, second holding pin are successively arranged in the Article 2 on the fixation hole and buffing pad on the buffer unit mounting groove
Shape hole, sets between two centers of second strip-shaped hole at regular intervals, and second holding pin is fixed on the buffer unit
In fixation hole on mounting groove, the second strip-shaped hole on the buffing pad keeps buffing pad enterprising in the second fixed holding pin
Row slides up and down；
When sliding block moves down when the bottom surface of guide rail body, the cushion of sliding block bottom surface and the bottom surface of guide rail body are connect
Touching, the bottom surface of guide rail body are lined with a reaction force to buffering, the upward cushion in the bottom surface of guide rail body, and with buffering
The deformation of pad carries out energy-absorbing buffering to the impact force that collision generates.Meanwhile under the action of the second strip-shaped hole, make buffing pad can
To move and squeeze third spring on the direction far from guide rail body bottom surface, deformation occurs for third spring stress, makes buffing pad
It is moved up under the action of the second holding pin and the second strip-shaped hole, extruding force is changed into elastic potential energy by third spring, makes
Three springs have a reaction force to buffing pad, so that it is pressed down against buffing pad, since impact force is pressed down against guide rail body bottom surface,
Third spring is set to do negative work, (i.e. third spring is to buffing pad less than extruding force to make to be changed by extruding force elastic potential energy
Reaction force is less than extruding force), to reduce size (therefore, the buffer gear for being transmitted to impact force on guide rail body bottom surface
For energy absorbing type buffer unit), it is directly acted on guide rail body bottom surface to avoid collision power, and be transferred directly to guide rail body
On, the damage of guide rail body bottom surface is caused, to reduce the damage to guide rail body bottom surface by third spring and cushion.
In one embodiment, after working long hours in order to avoid guide rail body, a large amount of dusts can be adsorbed on inner wall, thus
Particulate dust is avoided to increase in glass door moving process to the abrasion inside guide rail body, the preferred embodiment of the invention
It is that as shown in Figure 7 to 9, the sliding block 2-1 is equipped with one or more hairbrush peaces far from one end side wall of the fixed block 2-2
Cleaning brush 8 is equipped in tankage 2-14, the hairbrush mounting groove 2-14, the cleaning brush 8 includes being arranged in the hairbrush mounting groove
In 2-14 and with the supporting block 8-1 that the hairbrush mounting groove 2-14 inner sidewall is slidably connected, to be fixed at the supporting block 8-1 remote
Hairbrush 8-2 from described one end hairbrush mounting groove 2-14, it is symmetrically set in the shutter 8-3 at the both ends the hairbrush 8-2 and is set to
The 4th spring 8-4 between the support plate 8-1 and the bottom of the hairbrush mounting groove 2-14, the one end the 4th spring 8-4
Be fixed on the bottom supporting block 8-1, the other end is fixed on the bottom of the hairbrush mounting groove 2-14, the supporting block 8-1 includes card
The clamping block 8-11 that is slidably connected in the hairbrush mounting groove 2-14 and with the hairbrush mounting groove 2-14 inner sidewall, fixation
Set on the link block 8-12 of the clamping block 8-11 far from the one end the 4th spring 8-4, the size of the clamping block 8-11 with
The size fit of the hairbrush mounting groove 2-14, the link block 8-12 are connect with the hairbrush 8-2, the clamping block 8-11's
Lateral wall is uniformly provided with multiple second grooves, is equipped with buffer unit 6 in each second groove.
The working principle and beneficial effect of the present embodiment are as follows:
One or more cleaning brushes are added in the one side that sliding block is contacted with guide rail body inner sidewall, sliding block is in sliding groove
When moving up and down, the cleaning brush on sliding block clears up the inner wall of guide rail body, and the dust fallen is fallen in guide rail body
Glass door can be moved to upside when guide rail body internal dust is more by bottom, by cleaning device by guide rail body bottom surface
Dust unloaded, after avoiding guide rail body from working long hours, a large amount of dusts can be adsorbed on inner wall, to avoid graininess grey
Dirt increases in glass door moving process to the abrasion inside guide rail body.
It will cause after cleaning brush cleans guide rail body for a long time simultaneously as guide rail body is equipped with multiple limiting slots
The abrasion of cleaning brush is not bonded so as to cause later period cleaning brush with guide rail body inner sidewall, and the support plate of cleaning brush can be in sliding block
Hairbrush mounting groove in sliding, while between the cleaning brush and sliding block be equipped with the 4th spring, make support plate can be in the work of spring
It firmly descends this body sidewall of direction guiding rail to move, encounters the active force greater than the 4th spring force when cleaning brush cleans guide rail body, prop up
Fagging squeezes the 4th spring and moves to hairbrush installation trench bottom, so that avoiding cleaning brush from cleaning guide rail body encounters larger resistance
When damage cleaning brush, and when cleaning brush damage causes cleaning brush not to be bonded with the guide rail body, in the work of the 4th spring
Firmly it is bonded cleaning brush with guide rail body down.
In addition, multiple buffer units are equipped on the outside of the clamping block that supporting block is contacted with hairbrush mounting groove inner sidewall, it is described
The elastic force of the spring of buffer unit is less than the elastic force of the 4th spring, and the setting of buffer unit increases clamping block and pacifies in hairbrush
The resistance of tankage sliding, avoids cleaning brush and encounters excessive external force, the separate guide rail body for keeping hairbrush excessive not with guide rail sheet
Internal side wall contact, to avoid under the effect of external force, cleaning brush cannot play the role of cleaning.
In one embodiment, in order to avoid when vent cabinet works cabinet door do not fasten, the preferred embodiment of the invention
It is that as shown in figure 11, the laboratory hood glass door guide rail mechanism further includes the cushion for being disposed far from the buffing pad
Pressure sensor 9 on the side 6-4, processor 10-1 and the processor 10-1 with the pressure sensor 9 electric connection
The memory 10-2 of the electric connection and warning device 10-3 being electrically connected with the processor 10-1.
The working principle and beneficial effect of above scheme are as follows:
The pressure generated after being squeezed by the 9 real-time monitoring cushion 6-4 of pressure sensor being arranged in cushion 6-4
Force value, and the real-time pressure value monitored is fed back to processor 10-1, processor 10-1 is by received real-time pressure value
(the preset pressure threshold value is according to actual needs or experimental result with the preset pressure threshold value that is previously stored in memory 10-2
It is previously set, can finds from the prior art) carry out analysis comparison；When real-time pressure value is zero, illustrate cushion 6-4 not
With the deck contact of vent cabinet；When real-time pressure value is greater than preset pressure threshold value, illustrate the table top of cushion 6-4 and vent cabinet
Come into full contact with (i.e. the cabinet door of vent cabinet completely closes)；When real-time pressure value is greater than zero and is less than preset pressure threshold value, explanation
The deck contact (i.e. the cabinet door of vent cabinet does not completely close) of cushion 6-4 and vent cabinet, the alarm of processor 10-1 control at this time
Device 10-3 work, alarms.
In one embodiment, as shown in Figure 12 and Figure 13, the warning device 10-3 includes overvoltage crowbar, power
Amplifying circuit and warning lamp are attached with waterproof layer on the outer surface of warning lamp；
Warning lamp connects the positive terminal of overvoltage crowbar, the other end connects power amplification circuit；
The overvoltage crowbar includes: first that voltage input end Vi, source electrode are connect with the voltage input end Vi
Second PMOS tube P2 of the sources connected in parallel of PMOS tube P1, source electrode and the first PMOS tube P1, the leakage of the second PMOS tube P2
The gate connected in parallel of pole and the first PMOS tube P1, the grid of the second PMOS tube P2 are connected with first resistor R1, and described
The other end of one resistance R1 is in parallel with the voltage input end Vi, the first resistor R1 and the second PMOS tube P2 grid
Common node is connected with first capacitor C1, the common node of the second PMOS tube P2 drain electrode and the first PMOS tube P1 grid
It is connected with second resistance R2, the other end of the second resistance R2 is connected with NMOS tube P3, the other end of the second resistance R2
It is connect with the source electrode of the NMOS tube P3, the grid of the NMOS tube P3 is connect with the other end of the first capacitor C1, described
The common node of first capacitor C1 and the NMOS tube P3 grid is connected with operational amplifier U1, and the operational amplifier U1's is defeated
Outlet is connect with the common node of the first capacitor C1 and the NMOS tube P3 grid, the output end of the operational amplifier U1
It is parallel with 3rd resistor R3, the other end of the 3rd resistor R3 is in parallel with the first power-feed section of the operational amplifier U1, institute
The first input end for stating operational amplifier U1 is connected with the 4th resistance R4, and the second input terminal of the operational amplifier U1 is connected with
5th resistance R5, the second input terminal of the operational amplifier U1 and the common node of the 5th resistance R5 are connected with the 6th resistance
R6, the 5th resistance R5 connect with the 6th resistance R6, the 4th resistance R4 and operational amplifier U1 first input end
Common node be connected with voltage-stabiliser tube Z1, the reference pole of the voltage-stabiliser tube Z1 and the 4th resistance R4 and operational amplifier U1 the
The common node of one input terminal connects, and the cathode of the voltage-stabiliser tube Z1 is connected with the 7th resistance R7, the anode of the voltage-stabiliser tube Z1
With the other end of the 4th resistance R4, the second feeder ear of operational amplifier U1, the 6th resistance R6 the other end and NMOS
The drain electrode of pipe P3 is in parallel, and is connected to reference on ground GND；The overvoltage crowbar further includes input terminal and the first PMOS
The second capacitor C2, the second capacitor C2 that the inductance L of the drain electrode connection of pipe P1, one end are connect with the output end of the inductance L
The other end be connected to reference on ground GND, the common node of the second capacitor C2 and inductance L and the power amplification circuit connect
It connects；
The power amplification circuit includes: triode T1 and triode T2, third capacitor of connecting in the base stage of triode T1
Transmitting interpolar series connection the 6th resistance R6 and the 7th resistance R7 of 5 and triode T2 is posted in the transmitting of C3, triode T1, triode T1's
Collector is connected the 4th capacitor C4 with the inter-collector of triode T2, and connect the 5th capacitor C5 in the base stage of triode T2.
The working principle and beneficial effect of above scheme are as follows:
Second capacitor C2 is set as storage capacitor, voltage-stabiliser tube Z1 be set as three-terminal voltage-stabilizing pipe (specifically: TL431 voltage-stabiliser tube or
TL432 voltage-stabiliser tube)；
Above-mentioned overvoltage crowbar when the input voltage over-voltage of the first PMOS tube P1, can turn off the first PMOS tube P1, store up
Energy capacitor C2 can discharge because storing electric energy, and the process of storage capacitor C2 electric discharge can maintain its discharge voltage one at least
It is higher than input voltage in the section time, in this way the off state of the first PMOS tube P1 can also continues for some time, even if in this way
The input voltage of first PMOS tube P1 does not have over-voltage in current time over-voltage, in subsequent time again, and the first PMOS tube P1 will not
It is switched on state from off state at once, but can be just connected until the discharge voltage not over-voltage of storage capacitor C2, such as
This is avoided the first PMOS tube P1 when over-voltage in short-term from turning off temporary impact when being connected again at once suddenly to the danger of the first PMOS tube P1
Evil, overvoltage protection is not by over-voltage time restriction, and particularly with occurring the case where hundreds and thousands of over-voltages in short-term suddenly, advantage is more
Obviously.It is switched moreover, controlling the first PMOS tube P1 using the discharge voltage of storage capacitor C2, can more accurately limit first
The output voltage of PMOS tube P1.
As shown in Figure 10, a kind of laboratory hood glass door track-type facilities provided by the invention, comprising: symmetrically arranged
It laboratory hood glass door guide rail mechanism and is arranged between two laboratory hood glass door guide rail mechanisms
Glass door 9, wherein the laboratory hood glass door guide rail mechanism laboratory as claimed in any one of claims 1 to 9
Vent cabinet glass door guide rail mechanism.
The working principle of the invention and the utility model has the advantages that
In the present invention, adding ball with the sliding block two sidewalls that contact of sliding groove sidewall, sliding block in sliding groove on move down
When dynamic, the ball on sliding block is slided on the inner sidewall of guide rail body, by reducing the contact between sliding block and guide rail body
Face, and the friction between sliding block and the inner sidewall of guide rail body is reduced, so that the kinematic friction coefficient of guide rail body is reduced, thus
Abrasion is generated after avoiding sliding block from sliding for a long time in guide rail body, the gap between the guide rail and glass door after abrasion increases,
To avoid glass door during moving up and down from misplacing in guide rail.
Obviously, the above embodiments are merely examples for clarifying the description, and does not limit the embodiments.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of variation or
It changes.There is no necessity and possibility to exhaust all the enbodiments.And it is extended from this it is obvious variation or
It changes still within the protection scope of the invention.
Claims (10)
1. a kind of laboratory hood glass door guide rail mechanism characterized by comprising
Guide rail body (1), length direction are equipped with and the consistent sliding groove of its length direction (1-1)；
Glass fixing device (2) comprising be arranged in the sliding groove (1-1) and sliding with the sliding groove (1-1) inner sidewall
The sliding block (2-1) of dynamic connection is fixed at the fixed block (2-2) of the sliding block (2-1) far from the guide rail body (1) one end；
Ball (3), is set as being arranged in parallel and at interval multiple, and multiple balls (3) are uniformly arranged and are correspondingly arranged at the cunning
The two sidewalls block (2-1), each ball (3) one side wall is fixed on the sliding block (2-1), another side wall and the sliding groove
The contact of (1-1) inner sidewall.
2. a kind of laboratory hood glass door guide rail mechanism according to claim 1, which is characterized in that the sliding groove
(1-1) side wall is equipped with the ball grooves (1-12) for being vertically arranged and being adapted to the ball (3), the section of the ball grooves (1-12)
It is set as semicircle.
3. a kind of laboratory hood glass door guide rail mechanism according to claim 1, which is characterized in that the sliding block
(2-1) is equipped with limiting device mounting groove (2-11) far from one end side wall middle position of the fixed block (2-2), each limit
Limiting device (5) are equipped in device mounting groove (2-11).
4. a kind of laboratory hood glass door guide rail mechanism according to claim 3, which is characterized in that the limit dress
Setting (5) includes being set in the limiting device mounting groove (2-11) and sliding with limiting device mounting groove (2-11) inner sidewall
The sliding shoe (5-1) of dynamic connection, sliding shoe (5-1) size and limiting device mounting groove (2-11) size fit, institute
The sliding shoe bottom (5-1) is stated equipped with the first spring (5-2), limiting device mounting groove (2-11) the slot bottom centre is equipped with the first bullet
Spring fixing groove (2-111), described first spring (5-2) one end is fixed in first spring fixing groove (2-111), the other end
It is fixed on the end face of the sliding shoe (5-1) close to limiting device mounting groove (2-11) slot bottom, the sliding shoe (5-1)
Section be set as T-type, the sliding shoe (5-1) includes the sliding of size Yu limiting device mounting groove (2-11) size fit
Seat (5-11) and the fixture block (5- being fixed on the side of the sliding seat (5-11) separate first spring (5-2)
12), one end side wall of the fixture block (5-12) far from the sliding seat (5-11) is by close to far from the sliding seat (5-11)
Direction on be obliquely installed and be greater than close to the width of the side the sliding seat (5-11) far from the side the sliding seat (5-11)
Width, size and limiting device mounting groove (2-11) size are equipped at the notch of the limiting device mounting groove (2-11)
The limit plate (5-3) of adaptation, the limit plate middle position (5-3) is equipped with the through-hole being adapted to the fixture block (5-12), described
Limit plate (5-3) is sheathed on the outside of the fixture block (5-12) and lateral wall correspondence is fixed on the limiting device mounting groove (2-11)
Notch inner sidewall.
5. a kind of laboratory hood glass door guide rail mechanism according to claim 4, which is characterized in that the guide rail sheet
Sliding groove (1-1) inner sidewall in body (1) is equipped with multiple limits that parallel and interval is arranged and is adapted to the fixture block (5-12)
Position slot (1-11), multiple limiting slots (1-11) are arranged along the guide rail body (1) length direction interval.
6. a kind of laboratory hood glass door guide rail mechanism according to claim 1, which is characterized in that the sliding block
(2-1) is equipped with multiple first grooves (2-12) far from one end side wall two sides position of the fixed block (2-2), and each described first is recessed
It is equipped in slot (2-12) fixed device (4), the fixed device (4) includes that described the is fixed on by the first holding pin (7-1)
In one groove (2-12) and fastening seat (4-1) compatible with the first groove (2-12) size, fastening seat (4-1) side
Wall is equipped with the first strip-shaped hole (4-11) through setting, and the two sidewalls of each first groove (2-12) sustained height are correspondingly provided with
Fixation hole, the fastening seat bottom surface (4-1) are equipped with column (4-2), and second spring (4-3), institute are arranged with outside the column (4-2)
The first groove (2-12) bottom interior wall is stated equipped with second spring fixing groove (2-121) corresponding with the second spring (4-3), institute
State that the one end second spring (4-3) is sheathed on the column (4-2), the other end is fixed on the second spring fixing groove (2-
121) bottom, fastening seat (4-1) are equipped with ball fixing groove, the ball (3) far from an end face of the column (4-2)
It is fixed in the ball fixing groove, each first holding pin (7-1) sequentially passes through the fixation hole and its corresponding first
The fastening seat (4-1) is fixed in first groove (2-12) by strip-shaped hole (4-11).
7. a kind of laboratory hood glass door guide rail mechanism according to claim 1, which is characterized in that the sliding block
The bottom surface (2-1) is equipped with buffer unit mounting groove (2-13), is equipped with buffer unit (6) in the buffer unit mounting groove (2-13),
The buffer unit (6) include be fixed on by the second holding pin (7-2) in the buffer unit mounting groove (2-13) and with institute
The compatible buffing pad (6-1) of buffer unit mounting groove (2-13) size is stated, buffing pad (6-1) side wall is equipped with through setting
The second strip-shaped hole (6-11), the two sidewalls of buffer unit mounting groove (2-13) sustained height are correspondingly provided with fixation hole, institute
It states the buffing pad bottom surface (6-1) and is equipped with fastening column (6-2), be arranged with third spring (6-3) outside the fastening column (6-2), it is described slow
Flushing device mounting groove (2-13) bottom interior wall is equipped with third spring fixing groove (2- corresponding with third spring (6-3)
131) it is solid that, described third spring (6-3) one end is sheathed on the fastening column (6-2), the other end is fixed on the third spring
Determine the bottom slot (2-131), be equipped with fixing seat of the buffing pad (6-1) far from fastening column (6-2), the fixing seat it is outer
Diameter is less than the outer diameter of the buffing pad (6-1), and the fixing seat is equipped with cushion far from an end face of the buffing pad (6-1)
Mounting groove, the cushion mounting groove is interior to be equipped with cushion (6-4), is equipped at the notch of the buffer unit mounting groove (2-13)
With the stop collar (6-5) of the fixing seat size fit, the stop collar (6-5) is intermediate to lead to equipped with what is be adapted to the fixing seat
Hole, the stop collar (6-5) is sheathed on the outside of the fixing seat and lateral wall correspondence is fixed on the buffer unit mounting groove (2-
13) notch inner sidewall, second holding pin (7-2) sequentially pass through the fixation hole and its corresponding second strip-shaped hole (6-
11) buffing pad (6-1) is fixed in the buffer unit mounting groove (2-13).
8. a kind of laboratory hood glass door guide rail mechanism according to claim 1, which is characterized in that the sliding block
(2-1) is equipped with one or more hairbrush mounting grooves (2-14), the hairbrush installation far from one end side wall of the fixed block (2-2)
Cleaning brush (8) are equipped in slot (2-14), the cleaning brush (8) include be arranged in the hairbrush mounting groove (2-14) and with it is described
Supporting block (8-1) that hairbrush mounting groove (2-14) inner sidewall is slidably connected is fixed at the supporting block (8-1) far from described hair
It the hairbrush (8-2) of the one end brush mounting groove (2-14), the shutter (8-3) for being symmetrically set in the both ends the hairbrush (8-2) and is set to
The 4th spring (8-4) between the support plate (8-1) and the bottom of the hairbrush mounting groove (2-14), the 4th spring
The bottom supporting block (8-1) is fixed in the one end (8-4), the other end is fixed on the bottom of the hairbrush mounting groove (2-14), the branch
Bracer (8-1) includes being arranged in the hairbrush mounting groove (2-14) and sliding with hairbrush mounting groove (2-14) inner sidewall to connect
The clamping block (8-11) that connects is fixed at the link block (8- of the clamping block (8-11) far from described 4th spring (8-4) one end
12), the size fit of the size of the clamping block (8-11) and the hairbrush mounting groove (2-14), the link block (8-12) with
Hairbrush (8-2) connection, the lateral wall of the clamping block (8-11) are uniformly provided with multiple second grooves, each second groove
It is interior to be equipped with buffer unit (6).
9. a kind of laboratory hood glass door guide rail mechanism according to claim 1, which is characterized in that the fixed block
(2-2) is equipped with glass clamping groove (2-21) far from the side of sliding block (2-1).
10. a kind of laboratory hood glass door track-type facilities, which is characterized in that including symmetrically arranged laboratory hood glass
Glass door guide rail mechanism and the glass door (9) being arranged between two laboratory hood glass door guide rail mechanisms, wherein
The laboratory hood glass door guide rail mechanism laboratory hood glass door as claimed in any one of claims 1 to 9
Guide rail mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910398955.XA CN110306894B (en) | 2019-05-14 | 2019-05-14 | Glass door guide rail mechanism and device for laboratory ventilation cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910398955.XA CN110306894B (en) | 2019-05-14 | 2019-05-14 | Glass door guide rail mechanism and device for laboratory ventilation cabinet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110306894A true CN110306894A (en) | 2019-10-08 |
| CN110306894B CN110306894B (en) | 2021-01-01 |
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ID=68075453
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910398955.XA Active CN110306894B (en) | 2019-05-14 | 2019-05-14 | Glass door guide rail mechanism and device for laboratory ventilation cabinet |
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| Country | Link |
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| CN (1) | CN110306894B (en) |
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| CN207533654U (en) * | 2017-11-07 | 2018-06-26 | 苏州市凯利勋实验室设备有限公司 | A kind of vent cabinet with automatic sensing door |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5050943A (en) * | 1990-04-24 | 1991-09-24 | Forma Scientific, Inc. | Biological safety cabinet with window counterbalance |
| DE10322223A1 (en) * | 2003-05-16 | 2004-12-16 | Waldner Laboreinrichtungen Gmbh & Co. Kg | Stopper apparatus for vertical front slide of sliding window of laboratory exhaust duct, has unlocking device and reset spring which are integrated in handle, and through which stoppers and actuating rod are released |
| CN202767747U (en) * | 2012-06-26 | 2013-03-06 | 天津市达益窗业有限公司 | Window frame |
| CN105332602A (en) * | 2015-11-25 | 2016-02-17 | 冯义文 | Glass door for purifying work bench |
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| Publication number | Publication date |
|---|---|
| CN110306894B (en) | 2021-01-01 |
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