CN210828659U

CN210828659U - Waterproof electromagnetic lock

Info

Publication number: CN210828659U
Application number: CN201920956742.XU
Authority: CN
Inventors: 徐特; 张喜; 马乾; 李定国
Original assignee: Chongqing Chuanyi Suda Electronics & Machinery Co ltd
Current assignee: Chongqing Chuanyi Suda Electronics & Machinery Co ltd
Priority date: 2019-06-24
Filing date: 2019-06-24
Publication date: 2020-06-23
Anticipated expiration: 2029-06-24

Abstract

The utility model discloses a waterproof electromagnetic lock, including the casing with install respectively around the casing protecgulum and the hou gai at both ends, install in the casing and run through protecgulum and axial displacement move the iron core and with move iron core complex electromagnetic component, but move and be provided with the flexible seal cover of axial between iron core and the protecgulum, install first sealing washer between protecgulum and the casing, install the second sealing washer between back lid and the casing, the sealed movable gap that moves between iron core and the protecgulum that lives of seal cover, even move iron core axial displacement and do not influence sealed effect yet, the gap at casing both ends is sealed respectively to first sealing washer and second sealing washer, waterproof dustproof effectual, the life of this waterproof electromagnetic lock of extension.

Description

Waterproof electromagnetic lock

Technical Field

The utility model relates to a track traffic technical field and electromagnetic lock technical field especially relate to a waterproof electromagnetic lock that track shielded gate used.

Background

The rail transit screen door system is a high-tech product integrating the subjects of electronics, communication, machinery, construction, aesthetics and the like, is a necessary facility for the projects of the modernized subway, light rail, rapid public transport and the like, and is arranged along the edge of a platform to isolate a train from a platform waiting room. The existing rail transit screen door is generally controlled and locked by an electromagnetic valve/lock and is widely used, but because the rail transit screen door is exposed in the air, the rail transit screen door is easily influenced by various factors such as moisture, dust and the like, the fault rate is high, and the service life is short.

Therefore, the technical personnel in the field are dedicated to develop a waterproof electromagnetic lock with good waterproof and dustproof effects.

Disclosure of Invention

In view of the above-mentioned defects of the prior art, the utility model aims to solve the technical problem that a waterproof electromagnetic lock that waterproof dustproof is effectual is provided.

In order to achieve the above object, the utility model provides a waterproof electromagnetic lock, include the casing and install respectively the protecgulum and the back lid at both ends around the casing, install in the casing and run through protecgulum and axial displacement only move the iron core and with move iron core complex electromagnetic component, move the iron core with but be provided with the flexible seal cover of axial between the protecgulum, the protecgulum with install first sealing washer between the casing, the back lid with install the second sealing washer between the casing.

The seal cover is composed of a movable core seal ring, a middle elastic corrugated sleeve and a front cover seal ring, the movable core seal ring is in seal connection with the side wall of the movable iron core, the front cover seal ring is in seal connection with the front cover, the front end of the middle elastic corrugated sleeve is connected with the rear end of the movable core seal ring, and the rear end of the middle elastic corrugated sleeve is connected with the rear end of the front cover seal ring.

The front end of the middle elastic corrugated sleeve is also connected with the rear end of a conical buffering part, and the front end of the conical buffering part is connected with the rear end of the movable core sealing ring.

The middle elastic corrugated sleeve is composed of a first connecting part and a second connecting part which are turned outwards in the radial direction, the front end of the first connecting part is connected with the rear end of the conical buffering part, and the rear end of the first connecting part is connected with the front end of the second connecting part; the rear end of the second connecting part is connected with the rear end of the front cover sealing ring.

The movable core sealing rings are provided with at least two movable core sealing rings which are arranged in parallel front and back, a first connecting ring is arranged between every two adjacent movable core sealing rings for connection, and the inner side walls of the first connecting rings are tightly attached to the surface of the side wall of the movable iron core.

And a second connecting ring is arranged between the front cover sealing ring and the middle elastic corrugated sleeve for connection, and the inner side wall of the second connecting ring is tightly attached to the surface of the front cover.

The front cover is provided with an axially convex guide ring surrounding the lock cylinder, a sealing groove for accommodating the front cover sealing ring is formed in the bottom of the guide ring, and the inner side wall of the second connecting ring is tightly attached to the outer surface of the guide ring.

The electromagnetic assembly comprises a lock cylinder part installed on the movable iron core in a surrounding mode, an axial connecting hole is formed in the inner side of the front cover, an axial rotation stopping guide post is installed in the connecting hole in an interference fit mode, and a sliding block sleeved on the rotation stopping guide post is arranged on the lock cylinder part.

The movable iron core is further sleeved with a first shock pad, and the first shock pad is arranged between the front end face of the lock cylinder component and the rear end face of the front cover.

The electromagnetic assembly further comprises a magnetic conduction cover sleeve axially installed in the shell, a stroke limiting ring is radially extended from the front end of the lock cylinder component, and a second shock pad located behind the stroke limiting ring is fixedly installed at the front end of the magnetic conduction cover sleeve.

The utility model has the advantages that: the utility model discloses a waterproof electromagnetic lock, including the casing with install the protecgulum and the back lid at both ends around the casing respectively, install in the casing and run through protecgulum and axial displacement move the iron core and with move iron core complex electromagnetic component, move and be provided with the flexible seal cover of axial between iron core and the protecgulum, install first sealing washer between protecgulum and the casing, install the second sealing washer between back lid and the casing, the seal cover is sealed to live the activity gap between iron core and the protecgulum, even move iron core axial displacement and do not influence sealed effect yet, the gap at casing both ends is sealed respectively to first sealing washer and second sealing washer, waterproof dustproof effectual, prolong the life of this waterproof electromagnetic lock.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a structural sectional view of the present invention;

figure 3 is a schematic view of the construction of the gland;

fig. 4 is a structural sectional view of the sealing boot.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and examples, wherein it is noted that, in the description of the invention, the terms "upper", "lower", "left", "right", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular manner, and therefore should not be construed as limiting the present invention. The terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

As shown in fig. 1 to 4, a waterproof electromagnetic lock, including casing 1 and install protecgulum 2 and back lid 3 at casing 1 front and back both ends respectively, install in casing 1 and run through protecgulum 2 and axial displacement's movable iron core 4 and with movable iron core 4 complex electromagnetic component, but be provided with the flexible seal cover 5 of axial between movable iron core 4 and the protecgulum 2, install first sealing washer 6 between protecgulum 2 and the casing 1, install second sealing washer 7 between back lid 3 and the casing 1, the movable gap between movable iron core 4 and the protecgulum 2 is sealed to seal cover 5, even move the movable gap that iron core 4 axial displacement does not influence sealed effect yet, the gap at casing 1 both ends is sealed respectively to first sealing washer 6 and second sealing washer 7, waterproof dustproof effectual, the life of this waterproof electromagnetic lock is prolonged.

The sealing sleeve 5 consists of a movable core sealing ring 51, a middle elastic corrugated sleeve 52 and a front cover sealing ring 53, the movable core sealing ring 51 is hermetically connected with the side wall of the movable iron core 4, the front cover sealing ring 53 is hermetically connected with the front cover 2, the front end of the middle elastic corrugated sleeve 52 is connected with the rear end of the movable core sealing ring 51, and the rear end is connected with the rear end of the front cover sealing ring 53; the middle elastic corrugated sleeve 52 is composed of a first connecting part 521 and a second connecting part 522 which are turned outwards in the radial direction, the front end of the first connecting part 521 is connected with the rear end of the conical buffer part 54, and the rear end is connected with the front end of the second connecting part 522; the rear end of the second connecting part 522 is connected with the rear end of the front cover sealing ring 53, the sum of the lengths of the first connecting part 521 and the second connecting part 522 is greater than the moving stroke of the movable iron core 4, and when the movable iron core 4 is not extended, the included angle between the first connecting part 521 and the second connecting part 522 is an acute angle, so that a sufficient extension length can be reserved, the front cover sealing ring 53 and the movable core sealing ring 51 are ensured not to be touched, and the sealed state can be well maintained.

Furthermore, the front end of the middle elastic corrugated sleeve 52 is also connected with the rear end of a conical buffer part 54, the front end of the conical buffer part 54 is connected with the rear end of the movable core sealing ring 51, and the conical buffer part 54 is used for buffering the movable iron core 4 during axial movement, so that fatigue caused by directly pulling the middle elastic corrugated sleeve 52 under the action of high frequency is avoided.

In order to enhance the sealing effect, at least two movable core sealing rings 51 are arranged in parallel front and back, a first connecting ring 55 is arranged between two adjacent movable core sealing rings 51 for connection, and the inner side wall of the first connecting ring 55 is tightly attached to the surface of the side wall of the movable iron core 4; a second connecting ring 56 is arranged between the front cover sealing ring 53 and the middle elastic corrugated sleeve 52, and the inner side wall of the second connecting ring 56 is tightly attached to the surface of the front cover 2.

Further, the front cover 2 is provided with a guide ring 8 protruding in the axial direction around the lock cylinder 4, a sealing groove for accommodating the front cover sealing ring 53 is formed at the bottom of the guide ring 8, and the inner side wall of the second connecting ring 56 is tightly attached to the outer surface of the guide ring 8.

In summary, the gap between the movable iron core 4 and the front cover 2 is sealed by at least two movable core sealing rings 51, the first connecting ring 55, the second connecting ring 56 and the front cover sealing ring 53, and the middle elastic corrugated sleeve 52 ensures that the movable iron core 4 does not pull the sealing structures when moving, thereby ensuring the sealing effect.

In addition, the front end surface of casing 1 is provided with first mounting groove, and the rear end surface is provided with the second mounting groove, and first sealing washer 6 is installed in first mounting groove by

casing

1 and 2 centre grippings of protecgulum, and second sealing washer 7 is installed in the second mounting groove by casing 1 and the 3 centre grippings of back lid, and first sealing washer 6 and second sealing washer 7 seal the inner space of casing 1, further strengthen waterproof dustproof effect.

In this embodiment, in order to guarantee the real-time sealed effect of seal cover 5 and prolong the life of seal cover 5, so must guarantee its axial activity as far as possible when the activity, and avoid it radially to rock, radially rock and can transversely pull seal cover 5, it can lead to radial one end to receive the extrusion to pull the in-process, the radial other end receives to pull and leaks the space, just so can not play waterproof dirt-proof effect, and can weaken the radial sealed effect of seal cover 5 after using for a long time, so must strictly guarantee to move iron core 4 and can not radially rock also can not circumferential direction along axial displacement in life cycle this moment.

Therefore, furthermore, the electromagnetic assembly comprises a lock cylinder part 9 arranged on the movable iron core 4 in a surrounding manner, an axial connecting hole is formed in the inner side of the front cover 2, an axial rotation stopping guide post 10 is arranged in the connecting hole in an interference fit manner, the lock cylinder part 9 is provided with a sliding block 30 sleeved on the rotation stopping guide post 10, the lock cylinder part 9 axially slides along the rotation stopping guide post 10 through the sliding block 30, and the interference fit installation mode of the front cover 2 and the rotation stopping guide post 10 is good in fixed connection effect and firm in fixation, so that the lock cylinder part 9 and the movable iron core 4 are ensured not to circumferentially rotate; still be provided with first oilless bearing 24 between movable iron core 4 and protecgulum 2, still be provided with second oilless bearing 25 between movable iron core 4 and the magnetic conduction base 16, spline steering column 10, first oilless bearing 24 and second oilless bearing 25 ensure that movable iron core 4 is straighter when axial displacement and is in the same direction as smooth, ensure that movable iron core 4 can not radially rock also can not circumferential direction.

The movable iron core 4 is also sleeved with a first shock pad 11, and the first shock pad 11 is arranged between the front end face of the lock cylinder component 9 and the rear end face of the front cover 2; the electromagnetic assembly further comprises a magnetic conduction cover sleeve 12 axially installed in the shell 1, the front end of the lock cylinder component 9 is radially extended and provided with a stroke limiting ring 13, and a second shock pad 14 located behind the stroke limiting ring 13 is fixedly installed at the front end of the magnetic conduction cover sleeve 12; the first shock pad 11 and the second shock pad 14 absorb the vibration generated when the plunger 4 axially moves to the top or the bottom, so as to avoid the generation of vibration caused by the direct contact between the lock cylinder component 9 and the front cover 2 or the magnetic conductive cover sleeve 12.

In addition, the biggest difference of the movable iron core 4 compared with the existing electromagnetic lock on the market is that the movable iron core is rigid and integrated, and the movable iron core has the advantages of high moving speed and no shaking.

The electromagnetic assembly further comprises a magnetic conduction base 16 installed at the rear end of the inner side of the shell 1, an axial sleeve 17, a coil framework 18 and a coil component 19 are installed on the magnetic conduction base 16, the shell 1, a magnetic conduction cover sleeve 12, the coil component 19, the coil framework 18, the sleeve 17, the lock cylinder component 9 and the movable iron core 4 are sequentially sleeved from outside to inside, the lock cylinder component 9 is provided with an elastic pin 15 and is fixedly connected with the movable iron core 4, and the rear end of the movable iron core 4 axially penetrates through the magnetic conduction base 16 and extends into an electric connection cavity 20 surrounded by the rear cover 3.

The inside lock core storage tank that the axial holding lock core part 9 rear end was provided with to the front end of magnetic conduction base 16, be provided with in the lock core part 9 around moving iron core 4's spring chamber 21, the middle part of moving iron core 4 has cup jointed spring 22, spring 22 is the activity of stretching out in spring chamber 21, the middle part of moving iron core 4 is provided with radial extension's spring conflict circle 23, spring 22 is installed between the bottom of spring conflict circle 23 and lock core storage tank by the centre gripping, contain in the back lid 3 and install the sensor 29 of being connected with external electricity, the sensor is responsible for receiving the signal of this electromagnetic lock switching of control, during the circular telegram, coil part 19 produces magnetic field and promotes moving iron core 4 and stretch out, magnetic field disappears after the outage, move iron core 4 withdrawal under the restoring force effect of spring, this is current electromagnetic lock common technique.

The front cover 2 is provided with a first mounting bolt 26, and the front end of the shell 1 is provided with a first threaded hole matched with the first mounting bolt 26; the rear cover 3 is provided with a second mounting bolt 27, and the rear end of the shell 1 is provided with a second threaded hole matched with the second mounting bolt 27; the magnetic conduction base 16 is provided with a third mounting bolt 28, and the rear end of the shell 1 is provided with a third threaded hole matched with the third mounting bolt 28, so that the structure is simple, and the disassembly and assembly are convenient.

The utility model discloses an excellent effect lies in: the gap between the movable iron core 4 and the front cover 2 is sealed by at least two movable core sealing rings 51, a first connecting ring 55, a second connecting ring 56 and a front cover sealing ring 53, and the sealing effect of the whole electromagnetic lock is ensured by adding a first sealing ring 6 and a second sealing ring 7; the rotation stopping guide post 10, the middle elastic corrugated sleeve 52, the first oilless bearing 24, the second oilless bearing 25, the first shock pad 11 and the second shock pad 14 ensure that the movable iron core 4 cannot radially shake or circumferentially rotate to pull each sealing structure when moving, and the service life of the sealing sleeve 5 is prolonged.

The foregoing has described in detail preferred embodiments of the present invention. It should be understood that numerous modifications and variations can be devised by those skilled in the art in light of the present teachings without departing from the inventive concepts. Therefore, the technical solutions that can be obtained by a person skilled in the art through logic analysis, reasoning or limited experiments based on the prior art according to the concepts of the present invention should be within the scope of protection defined by the claims.

Claims

1. The utility model provides a waterproof electromagnetic lock, includes casing (1) and installs respectively in front cover (2) and back lid (3) at both ends around casing (1), install in casing (1) and run through front cover (2) and axial displacement's movable iron core (4) and with movable iron core (4) complex electromagnetism subassembly, characterized by: a sealing sleeve (5) which can axially stretch and retract is arranged between the movable iron core (4) and the front cover (2), a first sealing ring (6) is installed between the front cover (2) and the shell (1), and a second sealing ring (7) is installed between the rear cover (3) and the shell (1).

2. The waterproof electromagnetic lock of claim 1, wherein: the seal sleeve (5) is composed of a movable core seal ring (51), a middle elastic corrugated sleeve (52) and a front cover seal ring (53), the movable core seal ring (51) is in sealing connection with the side wall of the movable iron core (4), the front cover seal ring (53) is in sealing connection with the front cover (2), the front end of the middle elastic corrugated sleeve (52) is connected with the rear end of the movable core seal ring (51), and the rear end of the middle elastic corrugated sleeve is connected with the rear end of the front cover seal ring (53).

3. The waterproof electromagnetic lock of claim 2, wherein: the front end of the middle elastic corrugated sleeve (52) is also connected with the rear end of a conical buffering part (54), and the front end of the conical buffering part (54) is connected with the rear end of the movable core sealing ring (51).

4. The waterproof electromagnetic lock of claim 3, wherein: the middle elastic corrugated sleeve (52) is composed of a first connecting part (521) and a second connecting part (522) which are turned outwards in the radial direction, the front end of the first connecting part (521) is connected with the rear end of the conical buffer part (54), and the rear end of the first connecting part is connected with the front end of the second connecting part (522); the rear end of the second connecting portion (522) is connected to the rear end of the front cover seal ring (53).

5. The waterproof electromagnetic lock according to claim 2 or 3, characterized in that: the movable core sealing rings (51) are arranged in a front-back parallel mode, a first connecting ring (55) is arranged between every two adjacent movable core sealing rings (51) for connection, and the inner side wall of the first connecting ring (55) is tightly attached to the surface of the side wall of the movable iron core (4).

6. The waterproof electromagnetic lock according to claim 2 or 3, characterized in that: a second connecting ring (56) is arranged between the front cover sealing ring (53) and the middle elastic corrugated sleeve (52) for connection, and the inner side wall of the second connecting ring (56) is tightly attached to the surface of the front cover (2).

7. The waterproof electromagnetic lock of claim 6, wherein: the front cover (2) is provided with an axially convex guide ring (8) surrounding the movable iron core (4), the bottom of the guide ring (8) is provided with a sealing groove for accommodating the front cover sealing ring (53), and the inner side wall of the second connecting ring (56) is tightly attached to the outer surface of the guide ring (8).

8. The waterproof electromagnetic lock of claim 1, wherein: the electromagnetic assembly comprises a lock cylinder component (9) installed on the movable iron core (4) in a surrounding mode, an axial connecting hole is formed in the inner side of the front cover (2), an axial rotation stopping guide column (10) is installed in the connecting hole in an interference fit mode, and a sliding block (30) sleeved on the rotation stopping guide column (10) is arranged on the lock cylinder component (9).

9. The waterproof electromagnetic lock of claim 8, wherein: the movable iron core (4) is further sleeved with a first damping pad (11), and the first damping pad (11) is arranged between the front end face of the lock cylinder component (9) and the rear end face of the front cover (2).

10. The waterproof electromagnetic lock according to claim 8 or 9, characterized in that: the electromagnetic assembly further comprises a magnetic conduction cover sleeve (12) axially installed in the shell (1), a stroke limiting ring (13) is radially extended from the front end of the lock cylinder component (9), and a second shock pad (14) located behind the stroke limiting ring (13) is fixedly installed at the front end of the magnetic conduction cover sleeve (12).