CN217130175U

CN217130175U - Power-off brake for airport closing face recognition

Info

Publication number: CN217130175U
Application number: CN202220343500.5U
Authority: CN
Inventors: 薛志明; 岳超
Original assignee: Tianjin Lingjie Trans Tech Co ltd
Current assignee: Tianjin Lingjie Trans Tech Co ltd
Priority date: 2022-02-18
Filing date: 2022-02-18
Publication date: 2022-08-05
Anticipated expiration: 2032-02-18

Abstract

The utility model is suitable for a power-off brake technical field provides an airport goes out to close face identification with power-off brake, including the top be open-ended cylindrical shell, the top of cylindrical shell can be dismantled fixedly connected with roof, the center department of roof alternates through the bearing and is connected with the transmission shaft that is vertical axial, the circumferential surface bottom of transmission shaft is rotated through the bearing and is connected with annular friction disc one that is located cylindrical shell, along its direction of height block slip in the cylindrical shell be provided with the annular friction disc two that is located directly below annular friction disc one, be provided with the electro-magnet that can make annular friction disc two move down when its circular telegram in the cylindrical shell; the utility model discloses only used single spring as braking power component, simple structure and reasonable in design have reduced manufacturing cost, weaken the back when the elasticity of spring, will lock the lid and dismantle from the column shell and can take out the spring from the column hole and change, the effectual efficiency of changing the spring that has improved.

Description

Power-off brake for airport exit face recognition

Technical Field

The utility model belongs to the technical field of lose electric brake, especially, relate to airport goes out to close face identification with losing electric brake.

Background

The power-off brake is a friction plate brake with spring pressure when the electromagnetic is disengaged (released) and is powered off, can be applied to occasions such as safe braking and the like when the power is off, and is an ideal automatic execution element.

At present, a power-off brake is often arranged in a face recognition system of an airport exit, so that a door of the exit can be braked and sealed when power is cut off, and the phenomenon that people open the door and break the door is avoided.

The existing power-off brake basically adopts a multi-spring mode to brake elements, so that firstly, the internal structure of the brake is complex, the brake is not easy to disassemble, assemble and maintain, and secondly, after the elasticity of the spring is weakened, the spring is complex and inconvenient to replace in the later period, and therefore, the power-off brake for face recognition is designed to solve the problem.

SUMMERY OF THE UTILITY MODEL

The utility model provides a face identification is closed with losing electric brake in airport, aims at solving the problem that proposes in the above-mentioned background art.

The utility model is realized in such a way, the electricity loss brake for the face recognition is closed in the airport, which comprises a cylindrical shell with an opening at the top, a top plate is detachably and fixedly connected with the top of the cylindrical shell, a transmission shaft which is in a vertical axial direction is connected at the center of the top plate in an inserting way through a bearing, the bottom of the circumferential surface of the transmission shaft is rotationally connected with a first annular friction plate which is positioned in the cylindrical shell through the bearing, a second annular friction plate which is positioned right below the first annular friction plate is arranged in the cylindrical shell in a clamping and sliding way along the height direction of the cylindrical shell, an electromagnet which can make the second annular friction plate move downwards when the cylindrical shell is electrified is arranged in the cylindrical shell, a cylindrical hole which penetrates through the cylindrical shell and is communicated with the inside of the transmission shaft is arranged at the center of the bottom of the cylindrical shell, a locking cover is detachably and fixedly connected with the bottom of the cylindrical shell, and a circular hole which is communicated with the inside of the cylindrical hole is arranged on the locking cover, and a spring is inserted into the column-shaped hole, the top of the spring is abutted against the bottom of the annular friction plate II, and the bottom of the spring is abutted against the locking cover.

Preferably, four connecting blocks which are distributed in an equidistant annular array are fixedly connected to the outer peripheral side of the second annular friction plate, holes are formed in each connecting block, four threaded holes are formed in the cylindrical shell, each threaded hole is communicated with the corresponding connecting block, four bolts which are distributed in an equidistant annular array are connected to the top of the top plate in an inserting mode, each bolt penetrates through the corresponding connecting block through the hole and is inserted into the corresponding threaded hole through threads, firstly, the second annular friction plate can slide up and down along the axial direction of the bolt and cannot rotate, the second annular friction plate can be more reasonable, and secondly, the second annular friction plate can be separated from the threaded hole through rotation of the bolts, so that the top plate can be fixed on the cylindrical shell, and therefore the brake can be conveniently disassembled and maintained for internal parts.

Preferably, the bottom of the second annular friction plate is fixedly connected with an annular iron sheet, the annular iron sheet is located right above the electromagnet, and the annular iron sheet can be attracted downwards after the electromagnet is electrified to generate magnetic force, so that the second annular friction plate moves downwards.

Preferably, the bottom of the cylindrical shell is fixedly connected with a sleeve, the outer peripheral side of the sleeve is provided with an external thread, the inner wall of the locking cover is provided with an internal thread and is sleeved on the sleeve through the matching of the threads, a worker can hold the locking cover with a hand and rotate the locking cover, the locking cover can be separated from the sleeve through the matching of the threads, and the spring can be taken out from the bottom of the cylindrical shell and replaced.

Preferably, the circumferential surface of the cylindrical shell is provided with a circle of heat dissipation holes communicated with the inside of the cylindrical shell, and heat generated by friction between the annular friction plate II and the annular friction plate I can be discharged to the outside through the heat dissipation holes.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses after the electro-magnet outage, elastic action through the spring can promote annular friction disc two and upwards remove in the post shell, and make annular friction disc two can contradict on the surface of annular friction disc one, play the effect of braking transmission shaft, such design makes this stopper only use single spring as braking power element, simple structure and reasonable in design, production cost is reduced, after the elasticity of spring weakens, dismantle the locking lid from the post shell and can take out the spring from the post hole and change, the effectual efficiency of changing the spring that has improved.

2. The utility model discloses a rotating the bolt and making it break away from the threaded hole, can removing the roof fixed on the column shell to make things convenient for the dismouting of this stopper, so that maintain its inside spare part.

3. The utility model discloses a setting of louvre to make the produced heat of friction can discharge to the outside through the louvre between annular friction piece two and the annular friction piece one, avoid appearing the phenomenon emergence that the high temperature leads to spare part to damage in the column shell.

Drawings

Fig. 1 is a schematic perspective view of the present invention;

fig. 2 is a schematic plan view of the present invention;

FIG. 3 is a schematic cross-sectional view taken along the direction A-A of the present invention;

FIG. 4 is an exploded view of the structure of the present invention;

in the figure: 1. a cylindrical shell; 2. a top plate; 3. a drive shaft; 4. a first annular friction plate; 5. a second annular friction plate; 6. an electromagnet; 7. a cylindrical hole; 8. a locking cover; 9. a circular hole; 10. a spring; 11. an annular iron sheet; 12. a bolt; 13. connecting blocks; 14. a threaded hole; 15. a sleeve; 16. and (4) heat dissipation holes.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to fig. 1-4, the present invention provides a power-off brake for face recognition when an airport is closed: the device comprises a cylindrical shell 1 with an opening at the top, a top plate 2 is detachably and fixedly connected at the top of the cylindrical shell 1, a transmission shaft 3 which is in a vertical axial direction is inserted and connected at the center of the top plate 2 through a bearing, the bottom of the circumferential surface of the transmission shaft 3 is rotatably connected with a first annular friction plate 4 which is positioned in the cylindrical shell 1 through a bearing, a second annular friction plate 5 which is positioned under the first annular friction plate 4 is arranged in the cylindrical shell 1 in a clamping and sliding manner along the height direction of the cylindrical shell, an electromagnet 6 which can enable the second annular friction plate 5 to move downwards when the cylindrical shell is electrified is arranged in the cylindrical shell 1, a cylindrical hole 7 which penetrates through the cylindrical shell and is communicated with the inside of the transmission shaft 3 is arranged at the center of the bottom of the cylindrical shell 1, a locking cover 8 is detachably and fixedly connected at the bottom of the cylindrical shell 1, a circular hole 9 which is communicated with the inside of the cylindrical hole 7 is arranged on the locking cover 8, and a spring 10 is inserted in the cylindrical hole 7, spring 10's top is contradicted in two 5 bottoms of annular friction disc, spring 10's bottom is contradicted on locking lid 8, after 6 outage of electro-magnet, can promote two 5 upwards removal in cylindrical shell 1 of annular friction disc through spring 10's elastic action, and make two 5 surfaces of contradicting at annular friction disc 4 of annular friction disc, play the effect of braking transmission shaft 3, such design makes this stopper only use single spring 10 as braking power component, simple structure and reasonable in design, manufacturing cost is reduced, after spring 10's elasticity weakens, dismantle locking lid 8 from cylindrical shell 1 and can take out spring 10 from cylindrical hole 7 and change, the effectual efficiency of changing spring 10 that has improved.

Referring to fig. 3, regarding the specific connection mode of the second annular friction plate 5 in the cylindrical shell 1, four connecting blocks 13 are fixedly connected to the outer peripheral side of the second annular friction plate 5, and each connecting block 13 is provided with a hole, the cylindrical shell 1 is provided with four threaded holes 14, and each threaded hole 14 is respectively communicated with the inside of the corresponding connecting block 13, the top of the top plate 2 is inserted and connected with four bolts 12 distributed in an equidistant annular array, each bolt 12 respectively penetrates through the corresponding connecting block 13 through the hole and is inserted into the corresponding threaded hole 14 through a thread, through such a design, firstly, the second annular friction plate 5 can slide up and down along the axial direction of the bolt 12 without rotating, which is more reasonable, secondly, the bolt 12 is rotated to be separated from the threaded hole 14, so that the fixation of the top plate 2 on the cylindrical shell 1 can be released, thereby the dismouting of this stopper has been made things convenient for to maintain its inside spare part.

Specifically, the annular iron sheet 11 is fixedly connected to the bottom of the second annular friction plate 5, and the annular iron sheet 11 is located right above the electromagnet 6, so that the annular iron sheet 11 can be attracted downwards after the electromagnet 6 is electrified to generate magnetic force, the second annular friction plate 5 can move downwards, the first annular friction plate 4 can be kept away from the annular friction plate, and the normal rotation of the transmission shaft 3 is guaranteed.

The specific connection mode between the locking cover 8 and the cylindrical shell 1 is as follows, the bottom of the cylindrical shell 1 is fixedly connected with a sleeve 15, the outer periphery side of the sleeve 15 is provided with an external thread, the inner wall of the locking cover 8 is provided with an internal thread and is sleeved on the sleeve 15 through the matching of the threads, thus, a worker can hold the locking cover 8 by hand and rotate the locking cover, the locking cover can be separated from the sleeve 15 through the matching of the threads, and the spring 10 can be taken out from the bottom of the cylindrical shell 1 for replacement.

In addition, when the second annular friction plate 5 contacts the first annular friction plate 4, friction is generated and heat is generated, when the internal temperature of the cylindrical shell 1 is too high, the internal parts of the cylindrical shell may be thermally deformed to cause damage, and in order to avoid the problem, a circle of heat dissipation holes 16 communicated with the inside of the cylindrical shell 1 are formed in the circumferential surface of the cylindrical shell 1, so that the heat generated by the friction between the second annular friction plate 5 and the first annular friction plate 4 can be discharged to the outside through the heat dissipation holes 16, and the phenomenon that the parts are damaged due to the fact that the internal temperature of the cylindrical shell 1 is too high is avoided.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. Airport is closed face identification and is used mistake electric brake, including the top for open-ended cylindrical shell (1), its characterized in that: the top of the cylindrical shell (1) is detachably and fixedly connected with a top plate (2), the center of the top plate (2) is connected with a transmission shaft (3) in a vertical axial direction in an inserting mode through a bearing, the bottom of the circumferential surface of the transmission shaft (3) is rotatably connected with a first annular friction plate (4) positioned in the cylindrical shell (1) through a bearing, a second annular friction plate (5) positioned right below the first annular friction plate (4) is arranged in the cylindrical shell (1) in a clamping and sliding mode along the height direction of the cylindrical shell, an electromagnet (6) capable of enabling the second annular friction plate (5) to move downwards when the cylindrical shell is powered on is arranged in the cylindrical shell (1), a cylindrical hole (7) penetrating the cylindrical shell and communicated with the inside of the transmission shaft (3) is formed in the center of the bottom of the cylindrical shell (1), and a locking cover (8) is detachably and fixedly connected with the bottom of the cylindrical shell (1), the locking cover (8) is provided with a circular hole (9) communicated with the inside of the cylindrical hole (7), a spring (10) is inserted in the cylindrical hole (7), the top of the spring (10) is abutted to the bottom of the annular friction plate II (5), and the bottom of the spring (10) is abutted to the locking cover (8).

2. The power-off brake for airport face identification as defined in claim 1, wherein: the periphery side fixedly connected with of annular friction disc two (5) is four connecting block (13) that are equidistant annular array and distribute, and every seted up the hole on connecting block (13), four screw hole (14) have been seted up in cylindrical shell (1), and every screw hole (14) are linked together with corresponding connecting block (13) inside respectively, the top interlude of roof (2) is connected with four bolts (12) that are equidistant annular array and distribute, every bolt (12) run through corresponding connecting block (13) through the hole respectively and peg graft in corresponding screw hole (14) through the screw thread.

3. The power-off brake for airport face identification as defined in claim 1, wherein: the bottom of the second annular friction plate (5) is fixedly connected with an annular iron sheet (11), and the annular iron sheet (11) is located right above the electromagnet (6).

4. The power-off brake for airport face identification as defined in claim 1, wherein: the bottom of the cylindrical shell (1) is fixedly connected with a sleeve (15), external threads are formed on the outer peripheral side of the sleeve (15), internal threads are formed on the inner wall of the locking cover (8), and the locking cover is sleeved on the sleeve (15) in a threaded matching mode.

5. The power-off brake for airport face identification as defined in claim 1, wherein: the circumferential surface of the cylindrical shell (1) is provided with a circle of heat dissipation holes (16) communicated with the inside of the cylindrical shell.