CN112412251B - Composite cover plate type hand and electricity dual-purpose lifting threshold - Google Patents
Composite cover plate type hand and electricity dual-purpose lifting threshold Download PDFInfo
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- CN112412251B CN112412251B CN202011424379.0A CN202011424379A CN112412251B CN 112412251 B CN112412251 B CN 112412251B CN 202011424379 A CN202011424379 A CN 202011424379A CN 112412251 B CN112412251 B CN 112412251B
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- lifting
- base
- cover plate
- threshold
- seat
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- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B1/00—Border constructions of openings in walls, floors, or ceilings; Frames to be rigidly mounted in such openings
- E06B1/70—Sills; Thresholds
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B15/00—Other details of locks; Parts for engagement by bolts of fastening devices
- E05B15/02—Striking-plates; Keepers; Bolt staples; Escutcheons
- E05B15/0205—Striking-plates, keepers, staples
- E05B15/022—Striking-plates, keepers, staples movable, resilient or yieldable
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B63/00—Locks or fastenings with special structural characteristics
- E05B63/14—Arrangement of several locks or locks with several bolts, e.g. arranged one behind the other
- E05B63/143—Arrangement of several locks, e.g. in parallel or series, on one or more wings
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- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B1/00—Border constructions of openings in walls, floors, or ceilings; Frames to be rigidly mounted in such openings
- E06B1/70—Sills; Thresholds
- E06B2001/707—Thresholds with special provision for insulation
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Power-Operated Mechanisms For Wings (AREA)
- Seats For Vehicles (AREA)
Abstract
The invention discloses a composite cover plate type hand and electricity dual-purpose lifting threshold which is matched with a closed protective door for use and comprises a base and a lifting threshold, wherein the base is fixed in a foundation pit on the ground, a placement cavity is arranged on the base, the lifting threshold is positioned in the placement cavity and can move in a lifting mode, the lifting threshold comprises a lifting threshold outer frame and an internal component, the internal component is arranged in the lifting threshold outer frame, the lifting threshold outer frame comprises a lifting seat and a top cover plate, the top cover plate is arranged on the top surface of the lifting seat and is flush with the top surface of the base, and the internal component comprises a lifting mechanism, a lifting auxiliary mechanism and an auxiliary mechanism. The lifting operation of the lifting threshold can be realized through manual control outside the lifting threshold by arranging the electric device and the manual device to realize manual and electric double control on the lifting of the lifting threshold, and arranging the telescopic shaft to ensure that the lifting threshold is positioned at the highest point and the lowest point, so that the lifting operation of the lifting threshold is realized, the synchronization and the control precision are better, the manual control is convenient and reliable, and the whole structure is stable and reliable.
Description
Technical Field
The invention relates to the technical field of civil air defense engineering, in particular to a composite cover plate type manual and electric dual-purpose lifting threshold.
Background
The entrance and exit department of people's air defense equipment all is equipped with airtight guard gate, all sets up the threshold to airtight guard gate is supporting under the general condition, sets up the threshold in order to guarantee under the normal current condition of vehicle to when the door leaf received the shock wave load during the war, the threshold can play the effect of blockking the impact with the door leaf together, carries out the support of certain limit to the door leaf simultaneously, avoids the door leaf to produce great deformation. The threshold that the supporting set up generally is fixed threshold or lift threshold, and fixed threshold has more defect, generally in order to promote the guard action, adopts the lift threshold more. The existing closest lifting threshold is a hydraulic lifting threshold, but the hydraulic lifting threshold has the defects of large space required by a lifting mechanism, poor control precision, low speed, hidden leakage danger, hydraulic energy requirement and the like. The invention provides a composite cover plate type hand and electricity dual-purpose lifting threshold, which solves the problems.
Disclosure of Invention
The invention provides a composite cover plate type hand and electricity dual-purpose lifting threshold which is matched with a closed protective door, realizes hand and electricity dual control lifting, and effectively ensures safe and stable operation of civil air defense equipment.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a composite cover plate type hand and electricity dual-purpose lifting threshold is matched with a closed protective door for use and comprises a base and a lifting threshold, wherein the base is fixed in a foundation pit on the ground and is provided with an accommodating cavity, the lifting threshold is positioned in the accommodating cavity and can move in a lifting mode and comprises a lifting threshold outer frame and an internal component, the internal component is arranged in the lifting threshold outer frame, the lifting threshold outer frame comprises a lifting seat and a top cover plate, the top cover plate is arranged on the top surface of the lifting seat and is flush with the top surface of the base, and the internal component comprises a lifting mechanism, a lifting auxiliary mechanism and an auxiliary mechanism;
elevating system fixes in settling the intracavity, its top expansion end and lift seat fixed connection, lift complementary unit includes guider and supplementary bouncer, guider and supplementary bouncer's both ends respectively with base and lift seat fixed connection, complementary unit establishes on the lift seat, including stop device and blocking device, stop device is located between lift seat and the base, blocking device is located between lift seat and the top apron.
Furthermore, the lifting mechanism comprises an electric device, a manual device, a T-shaped commutator and a lifter, wherein the electric device and the manual device are connected with the T-shaped commutator to drive the T-shaped commutator to move, the T-shaped commutator is connected with the two lifters and is fixed on the base, and the lifting end of each lifter is connected with the lifting seat.
Furthermore, the T-shaped commutator is provided with a telescopic shaft, the top end of the telescopic shaft is connected to the top cover plate, the stroke of the telescopic shaft is the same as the lifting stroke of the lifting threshold, and the telescopic shaft comprises a telescopic cylinder coaxially arranged and is provided with three stages.
Furthermore, the guide device and the auxiliary bouncing device are both vertically arranged and symmetrically arranged; the guide device comprises a guide cylinder and an inserted rod, the bottom end of the guide cylinder is fixed on the base, the inserted rod is positioned in the guide cylinder, and the top end of the inserted rod is fixed on the lifting seat; the auxiliary bouncing devices are arranged in two groups, the bottom ends of the auxiliary bouncing devices are hinged to the base, one group of top ends of the auxiliary bouncing devices are connected to the lifting seat, and the other group of top ends of the auxiliary bouncing devices are connected to the top cover plate.
Furthermore, the limiting device is a ball, a ball seat is arranged on the side plate of the lifting seat, the limiting device is arranged in the ball seat and rotates freely, and the exposed part of the limiting device is in contact with the side plate of the base.
Furthermore, the locking device is fixed on the lifting seat and comprises a telescopic locking head, and a locking hole corresponding to the locking head is formed in the top cover plate.
Furthermore, the top cover plate is connected with the lifting seat through a hinge and is opened towards one side, and the hinge movably links the side edge of the top cover plate with one side edge of the top of the lifting seat.
Furthermore, a locking cover plate hole is formed in the top cover plate, a locking cover plate is arranged in the locking cover plate hole and fixed on the support, and the support is fixed on the base.
Further, be equipped with oblique blocking device on the base, oblique blocking device includes activity locking cover, base, spring and goes up the sleeve, it fixes on activity locking cover bottom surface to go up the sleeve, the base is fixed in the base bottom, the spring is established between last sleeve and base, activity locking cover and base upper surface parallel and level.
Furthermore, sealing strips are arranged between the lifting seat and the top cover plate as well as between the lifting seat and the base.
The invention has the following beneficial effects:
the lifting of the lifting threshold is controlled manually and electrically by an electric device and a manual device, and the telescopic shaft is arranged to ensure that the lifting threshold can be lifted outside the lifting threshold through manual control when the lifting threshold is positioned at the highest point and the lowest point;
the top cover plate of the lifting doorsill is of a movable structure, so that the daily smooth doorsill is guaranteed, and the lifting doorsill can be opened to one side during maintenance, so that the daily use is guaranteed, and the convenient operation of maintenance is guaranteed; the hinge and the locking device are arranged to limit the top cover plate, so that the complete closing and the stable state of the top cover plate are ensured;
the lifting threshold is provided with a locking cover plate and an inclined locking device which are matched with the bottom of the closed protective door in a locking way, the closed protective door is supported when the threshold is lifted, and the lifting threshold bears the impact transmitted by a door leaf, so that the stability of civil air defense equipment is ensured;
the invention has better synchronism and control precision through electric control, convenient and reliable manual control, stable and reliable integral structure, good protection performance, dustproof and waterproof functions and convenient maintenance.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a cross-sectional view of the overall construction of the present invention;
FIG. 3 is a schematic view of a base structure according to the present invention;
FIG. 4 is a schematic view of the lifting seat of the present invention;
FIG. 5 is a schematic view of the top cover plate structure of the present invention;
FIG. 6 is a schematic view of the connection of the lifting mechanism of the present invention;
FIG. 7 is a schematic view of a hinge structure of the present invention;
FIG. 8 is a schematic view of the stand according to the present invention;
FIG. 9 is a schematic view of the construction of the telescopic shaft of the present invention;
FIG. 10 is a schematic view of the construction of the diagonal lock mechanism of the present invention;
FIG. 11 is a cross sectional view of the construction of the bevel latch of the present invention;
FIG. 12 is a schematic view of the structure of the insert rod of the present invention;
FIG. 13 is a schematic view of the structure of the guide cylinder of the present invention;
FIG. 14 is a schematic view of the latch of the present invention.
Reference numerals: 1-base, 11-oblique locking device, 111-movable locking cover plate, 112-base, 113-spring, 114-upper sleeve, 2-lifting base, 3-top cover plate, 31-hinge, 32-locking cover plate, 33-support, 4-lifting mechanism, 41-electric device, 42-manual device, 43-T type commutator, 431-telescopic shaft, 44-lifter, 5-lifting auxiliary mechanism, 51-guide device, 511-guide cylinder, 512-inserted bar, 52-auxiliary bouncing device, 6-auxiliary mechanism, 61-limiting device and 62-locking device.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the specification, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of this patent, it is to be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for the convenience of describing the patent and for the simplicity of description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the patent.
As shown in fig. 1 and 2, a composite cover plate type hand and electricity dual-purpose lifting threshold is used in cooperation with a closed protective door, and comprises a base 1 and a lifting threshold, wherein the base 1 is fixed in a foundation pit on the ground, a placement cavity is formed in the base, the lifting threshold is located in the placement cavity and can move in a lifting mode, the composite cover plate comprises a lifting threshold outer frame and internal components, the internal components are arranged in the lifting threshold outer frame, the lifting threshold outer frame comprises a lifting seat 2 and a top cover plate 3, the top cover plate 3 is arranged on the top surface of the lifting seat 2 and is flush with the top surface of the base 1, and the internal components comprise a lifting mechanism 4, a lifting auxiliary mechanism 5 and an auxiliary mechanism 6.
As shown in fig. 1, 3, and 6, the lifting mechanism 4 is fixed in the placement cavity, the top movable end of the lifting mechanism is fixedly connected to the lifting base 2, the lifting auxiliary mechanism 5 includes a guiding device 51 and an auxiliary bouncing device 52, two ends of the guiding device 51 and the auxiliary bouncing device 52 are respectively fixedly connected to the base 1 and the lifting base 2, the auxiliary mechanism 6 is disposed on the lifting base 2 and includes a limiting device 61 and a locking device 62, the limiting device 61 is disposed between the lifting base 2 and the base 1, and the locking device 62 is disposed between the lifting base 2 and the top cover plate 3.
The lifting base 2 and the top cover plate 3 are combined into a lifting threshold outer frame, a component is arranged in the lifting threshold outer frame, and the lifting of the lifting threshold is realized through the action of the lifting mechanism 4.
The operation principle during lifting is as follows: the lifting mechanism 4 is fixed on the base 1, and a lifting component on the lifting mechanism is lifted upwards under the electric control of a motor or the manual operation of a handle, and simultaneously drives the lifting doorsill outer frame to be lifted upwards. When the lifting threshold outer frame rises, the guide device 51 plays a role in guiding and limiting, and the lifting threshold outer frame is ensured to keep rising vertically; the auxiliary ejecting device 52 plays a role of auxiliary pushing; the stop 61 serves to reduce friction and limit spacing.
As shown in fig. 4 and 5, when the maintenance is performed, the internal structure is maintained by opening the top cover plate 3, and the operation of laterally opening the top cover plate 3 is as follows: the locking device 62 is opened by an external switch, and then the roof panel 3 is opened to one side with the aid of the auxiliary raising device 52 to perform maintenance work, and after the maintenance is completed, the roof panel 3 is closed and the locking device 62 is locked.
As shown in fig. 6 and 9, the lifting mechanism 4 further includes an electric device 41, a manual device 42, a T-shaped reverser 43, and a lifter 44, wherein the electric device 41 and the manual device 42 are both connected with the T-shaped reverser 43 to drive the T-shaped reverser 43 to move, the T-shaped reverser 43 is connected with two lifters 44, both of which are fixed on the base 1, and a lifting end of the lifter 44 is connected with the lifting base 2.
As shown in fig. 2, 6 and 9, further, a telescopic shaft 431 is arranged on the T-shaped commutator 43, the top end of the telescopic shaft 431 is connected to the top cover plate 3, the stroke of the telescopic shaft 431 is the same as the lifting stroke of the lifting threshold, and the telescopic shaft 431 includes coaxially arranged telescopic cylinders, and three stages are arranged. The telescopic shaft 431 is arranged, so that the lifting threshold can be lifted outside the lifting threshold at the highest point and the lowest point through manual operation.
Furthermore, the electric device 41 is a motor, is disposed in the mounting groove of the base, is located outside the lifting doorsill, and is provided with a detachable cover plate thereon. The electric device 41 provides electric control power for lifting the lifting threshold.
The power transmission flow direction is that, the motor provides power to the T-shaped commutator 43, then the power is divided to the two elevators 44, and the elevators 44 extend and retract up and down to realize the lifting of the lifting seat 2.
Further, hand-operated device 42 includes twist grip and connecting axle, twist grip and connecting axle can dismantle the connection, the inner and the T type commutator 43 of connecting axle are connected, and the outer end is located the recess on top apron 3, twist grip establishes in the top apron 3 outside. Under the normal state, the connecting shaft is not exposed, and the daily use of the doorsill is not influenced; when needing to carry out manual opening, with turning handle installation to the outer end of connecting axle, carry out manual opening, after finishing using, lift off turning handle can.
The power transmission flow direction is that the handle is rotated to divide the power to the two lifters 44 through the T-shaped reverser 43, and the lifters 44 extend up and down to realize the lifting of the lifting seat 2.
As shown in fig. 2, 12 and 13, further, the guide device 51 and the auxiliary upspring device 52 are vertically arranged and symmetrically arranged; the guiding device 51 comprises a guiding cylinder 511 and an inserting rod 512, the bottom end of the guiding cylinder 511 is fixed on the base 1, the inserting rod 512 is positioned in the guiding cylinder 511 and moves vertically, and the top end of the inserting rod is fixed on the lifting seat 2; the auxiliary bouncing devices 52 are arranged in two groups, the bottom ends of the auxiliary bouncing devices are hinged to the base 1, one group of top ends of the auxiliary bouncing devices are connected to the lifting seat 2, and the other group of top ends of the auxiliary bouncing devices are connected to the top cover plate 3. The guide device 51 and the auxiliary bouncing device 52 which are symmetrically arranged ensure uniform and stable stress when the lifting threshold is lifted, and further realize vertical stable lifting of the lifting threshold.
The guide device 51 has the functions of blocking horizontal acting force in the lifting process, limiting and ensuring the vertical lifting of the lifting threshold and protecting other components from horizontal force; and secondly, when the lifting threshold rises, the acting force transmitted by the door leaf is borne, and the stable state of the lifting threshold is ensured.
Further, the auxiliary bouncing devices 52 are pneumatic spring tubes, which are symmetrically arranged in two groups, and the two groups have different hinge angles, one group hinged to the lifting seat 2 plays an auxiliary role when the lifting threshold is lifted, and the other group hinged to the top cover plate 3 plays an auxiliary role when the top cover plate 3 is opened to one side, and the hinge angle is the same as the opening angle of the top cover plate 3.
As shown in fig. 2, the limiting device 61 is a ball, a ball seat is arranged on a side plate of the lifting seat 2, the limiting device 61 is arranged in the ball seat and can rotate freely, and the exposed part of the limiting device is contacted with the side plate of the base 1.
The ball is arranged in the ball seat of the side plate of the lifting seat 2 and stably and freely moves in the ball seat, the outer side of the ball is in contact with the side plate of the base 1, when the lifting threshold is lifted, the ball cannot be compressed, so that the clearance between the lifting seat 2 and the base 1 is certain, the support is provided, and the friction is reduced by the rolling of the ball.
The spacing between the lifting seat 2 and the base 1 is limited by the limiting device 61, so that the stability of the clearance and the relative position between the lifting seat 2 and the base is ensured; meanwhile, sliding friction is changed into rolling friction, so that friction can be reduced, and the influence on the lifting of the lifting threshold caused by the change of the gap between the lifting seat 2 and the base 1 due to stress is avoided.
As shown in fig. 2 and 14, further, the locking device 62 is fixed on the lifting base 2 and includes a telescopic locking head, and the top cover plate 3 is provided with a locking hole corresponding to the locking head.
Further, the locking device 62 is a gear-rack meshing type locking structure, the locking head is a rack and is meshed with a gear in the locking device 62, and the locking head is driven to stretch by the rotation of the gear, so that the locking and the opening of the top cover plate 3 are realized.
As shown in fig. 2 and 14, in a normal state, the top cover 3 is attached to the top of the lifting seat 2, and the top cover 3 is locked by the locking head of the locking device 62 protruding out to match with the locking hole, so as to ensure the stability of the top cover 3. When in maintenance, the locking head of the locking device 62 retracts, the lock is opened, and the top cover plate 3 is opened and closed.
As shown in fig. 2 and 7, further, the top cover 3 is connected with the lifting seat 2 by a hinge 31 and is opened to one side, and the hinge 31 movably links the side of the top cover 3 with one side of the top of the lifting seat 2.
As shown in fig. 7, further, the hinge 31 includes a rotating shaft and two fixing seats, the fixing seats are disposed outside the rotating shaft and rotate around the rotating shaft, the two fixing seats are disposed at two ends of the rotating shaft and disposed on the lifting seat 2, and the two fixing seats are disposed in the middle of the rotating shaft and disposed on the top cover plate 3. When the top cover plate 3 is opened and closed, the two fixed seats in the middle part rotate around the rotating shaft along with the top cover plate 3.
Furthermore, the bottom surface of the rotating short side of the top cover plate 3 is processed by a slope, so that the top cover plate 3 can be opened and closed without any obstacle while the airtightness between the top cover plate 3 and the lifting seat 2 is ensured.
As shown in fig. 1 and 8, further, a locking cover plate hole is formed in the top cover plate 3, a locking cover plate 32 is arranged in the locking cover plate hole, the locking cover plate 32 is fixed on a support 33 and is flush with the top surface of the lifting doorsill, and the support 33 is fixed on the base 1.
As shown in fig. 1, 3, 10, and 11, further, an oblique locking device 11 is disposed on the base 1, the oblique locking device 11 includes a movable locking cover 111, a base 112, a spring 113, and an upper sleeve 114, the upper sleeve 114 is fixed on a bottom surface of the movable locking cover 111, the base 112 is fixed at a bottom of the base 1, the spring 113 is disposed between the upper sleeve 114 and the base 112, and the movable locking cover 111 is flush with an upper surface of the base 1.
The locking cover 32 on the top cover 3 and the inclined locking device 11 on the base 1 are matched with the locking head at the bottom of the airtight protection door. The locking cover plate 32 is fixed on the base 1 through the support 33, and under a normal state, the locking cover plate 32 is flush with the top of the lifting doorsill, so that the passing is not influenced; when the lifting doorsill is lifted, the locking cover plate 32 is kept still, a vertical abdicating locking hole is formed on the lifting doorsill, and the locking head of the closed protective door can be inserted into the abdicating locking hole. In a normal state of the oblique locking device 11, the spring 113 is in a free state, the movable locking cover plate 111 at the top of the oblique locking device is flush with the surface of the base 1, and when a locking head of the sealed protective door is inserted, the movable locking cover plate 111 is pressed to compress the spring 113 to move downwards so as to give way to the locking head; when the locking head is raised, the spring 113 is reset and the movable locking cover 111 is automatically raised.
Furthermore, sealing strips are arranged between the lifting seat 2 and the top cover plate 3, and between the lifting seat 2 and the base 1. The lifting doorsill and the base 1 are completely sealed, and the functions of dust prevention and water prevention are achieved.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention 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, and any reference signs in the claims are not to be construed as limiting the claims.
Claims (8)
1. A composite cover plate type hand and electricity dual-purpose lifting threshold is matched with a closed protective door for use, and is characterized by comprising a base (1) and a lifting threshold, wherein the base (1) is fixed in a foundation pit on the ground, a placement cavity is formed in the base, the lifting threshold is positioned in the placement cavity and can move in a lifting mode, the lifting threshold comprises a lifting threshold outer frame and internal components, the internal components are arranged in the lifting threshold outer frame, the lifting threshold outer frame comprises a lifting seat (2) and a top cover plate (3), the top cover plate (3) is arranged on the top surface of the lifting seat (2) and is flush with the top surface of the base (1), and the internal components comprise a lifting mechanism (4), a lifting auxiliary mechanism (5) and an auxiliary mechanism (6);
the lifting mechanism (4) is fixed in the placement cavity, the movable end of the top of the lifting mechanism is fixedly connected with the lifting seat (2), the lifting auxiliary mechanism (5) comprises a guide device (51) and an auxiliary bouncing device (52), two ends of the guide device (51) and the auxiliary bouncing device (52) are respectively fixedly connected with the base (1) and the lifting seat (2), the auxiliary mechanism (6) is arranged on the lifting seat (2) and comprises a limiting device (61) and a locking device (62), the limiting device (61) is positioned between the lifting seat (2) and the base (1), and the locking device (62) is positioned between the lifting seat (2) and the top cover plate (3);
the guide device (51) and the auxiliary bouncing device (52) are both vertically arranged and symmetrically arranged; the guide device (51) comprises a guide cylinder (511) and an insertion rod (512), the bottom end of the guide cylinder (511) is fixed on the base (1), the insertion rod (512) is positioned in the guide cylinder (511), and the top end of the insertion rod is fixed on the lifting seat (2); the auxiliary bouncing devices (52) are arranged in two groups, the bottom ends of the auxiliary bouncing devices are hinged to the base (1), the top end of one group is connected to the lifting seat (2), and the top end of the other group is connected to the top cover plate (3);
the limiting device (61) is a ball, a ball seat is arranged on a side plate of the lifting seat (2), the limiting device (61) is arranged in the ball seat and can rotate freely, and the exposed part of the limiting device is in contact with the side plate of the base (1).
2. The composite cover plate type manual and electric dual-purpose lifting threshold as claimed in claim 1, wherein: elevating system (4) include electric actuator (41), hand device (42), T type commutator (43) and lift (44), electric actuator (41) and hand device (42) all are connected with T type commutator (43), drive its motion, T type commutator (43) are connected with two lifts (44), all fix on base (1), the lift end and the lift seat (2) of lift (44) are connected.
3. The composite cover plate type manual and electric dual-purpose lifting threshold as claimed in claim 2, wherein: be equipped with telescopic shaft (431) on T type commutator (43), telescopic shaft (431) top is connected on top apron (3), and its stroke is the same with lift threshold lift stroke, telescopic shaft (431) set up the tertiary including the telescopic cylinder of coaxial setting altogether.
4. The composite cover plate type manual and electric dual-purpose lifting threshold as claimed in claim 1, wherein: the locking device (62) is fixed on the lifting seat (2) and comprises a telescopic locking head, and a locking hole corresponding to the locking head is formed in the top cover plate (3).
5. The composite cover plate type manual and electric dual-purpose lifting threshold of claim 4, which is characterized in that: the top cover plate (3) is connected with the lifting seat (2) through a hinge (31) and is opened towards one side, and the hinge (31) movably links the side edge of the top cover plate (3) with one side edge of the top of the lifting seat (2).
6. The composite cover plate type manual and electric dual-purpose lifting threshold as claimed in claim 1, characterized in that: be equipped with the shutting apron hole on top apron (3), be equipped with shutting apron (32) in the shutting apron hole, shutting apron (32) are fixed on support (33), support (33) are fixed on base (1).
7. The composite cover plate type manual and electric dual-purpose lifting threshold of claim 6, which is characterized in that: be equipped with oblique blocking device (11) on base (1), oblique blocking device (11) are including activity locking cover board (111), base (112), spring (113) and last sleeve (114), it fixes on activity locking cover board (111) bottom surface to go up sleeve (114), base (112) are fixed in base (1) bottom, establish between last sleeve (114) and base (112) spring (113), activity locking cover board (111) and base (1) upper surface parallel and level.
8. The composite cover plate type manual and electric dual-purpose lifting threshold as claimed in claim 1, wherein: sealing strips are arranged between the lifting seat (2) and the top cover plate (3), between the lifting seat (2) and the base (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011424379.0A CN112412251B (en) | 2020-12-08 | 2020-12-08 | Composite cover plate type hand and electricity dual-purpose lifting threshold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011424379.0A CN112412251B (en) | 2020-12-08 | 2020-12-08 | Composite cover plate type hand and electricity dual-purpose lifting threshold |
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| CN112412251A CN112412251A (en) | 2021-02-26 |
| CN112412251B true CN112412251B (en) | 2022-11-18 |
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| CN112814527A (en) * | 2021-03-17 | 2021-05-18 | 宁波市世纪防护设备厂 | Lifting doorsill |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200946260Y (en) * | 2006-09-27 | 2007-09-12 | 彭庆烈 | Push type screw bolt headstock gear |
| CA2730445A1 (en) * | 2007-07-12 | 2009-01-15 | Threshold Solutions Limited | Improvements in relation to doorsills |
| CN208564394U (en) * | 2018-07-07 | 2019-03-01 | 安徽力昂人防工程设备有限公司 | A kind of movable sill airtight blast door |
| CN109610986B (en) * | 2019-01-17 | 2020-06-09 | 中国建筑标准设计研究院有限公司 | Executing mechanism of manual and electric dual-purpose protective door and control method |
| CN211714872U (en) * | 2019-12-17 | 2020-10-20 | 浙江省建筑设计研究院 | Smoke exhaust window opening device |
| CN111119694A (en) * | 2020-01-15 | 2020-05-08 | 中国建筑标准设计研究院有限公司 | Transition threshold protective airtight door with uniformly distributed locking |
| CN211736335U (en) * | 2020-02-21 | 2020-10-23 | 孙世波 | Civil engineering structure composite template |
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| CN112412251A (en) | 2021-02-26 |
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