CN216197272U

CN216197272U - Control device of door lock

Info

Publication number: CN216197272U
Application number: CN202122398028.3U
Authority: CN
Inventors: 庞淼; 徐裕浙; 张建堂
Original assignee: Ningbo Zhenguan Electric Appliance Co ltd
Current assignee: Ningbo Zhenguan Electric Appliance Co ltd
Priority date: 2021-09-30
Filing date: 2021-09-30
Publication date: 2022-04-05
Anticipated expiration: 2031-09-30

Abstract

The utility model discloses a control device of a door lock, which comprises a shell, wherein a synchronous motor, a transmission mechanism and a push rod are arranged in the shell, the transmission mechanism is in transmission fit with an output shaft of the synchronous motor, and the transmission mechanism drives the push rod to extend or retract relative to the shell; still be equipped with first micro-gap switch in the casing, first micro-gap switch cooperatees with the push rod, and when the push rod retracted in the casing, the push rod acted on position detection subassembly. The utility model has the following advantages and effects: the synchronous motor is adopted to drive the push rod to move relative to the shell, the position of the push rod is detected through the first microswitch, the synchronous motor is matched with the door lock for use, the effects of automatic unlocking and timely detection can be realized, and the synchronous motor can drive the push rod to reciprocate after being electrified; the push rod is divided into the front rod and the rear rod, the front rod and the rear rod are elastically connected, a buffer stroke is formed between the front rod and the rear rod, and the front rod can be kept for a period of time when extending out and abutting against an external part.

Description

Control device of door lock

Technical Field

The utility model relates to the technical field of door lock control, in particular to a control device of a door lock.

Background

In prior art, traditional electronic lock can't be installed on rotary part, because electronic lock's automatically controlled part is connected with the wire, under the high-speed pivoted condition of rotary part, if install traditional electronic lock on rotary part, can make the wire take place to twine, consequently only install manual pressure unblock formula lock on rotary part usually, on the other hand, functions such as position detection also can't be realized to traditional manual push type unblock lock. Therefore, a structure capable of automatically unlocking the rotating member and detecting the position point in time is urgently needed.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a control device of a door lock, which is matched with the door lock for use and has the effects of automatic unlocking and timely site detection.

The technical purpose of the utility model is realized by the following technical scheme: a control device of a door lock comprises a shell, wherein a synchronous motor, a transmission mechanism and a push rod are arranged in the shell, the transmission mechanism is in transmission fit with an output shaft of the synchronous motor, and the transmission mechanism drives the push rod to extend or retract relative to the shell; still be equipped with first micro-gap switch in the casing, first micro-gap switch cooperatees with the push rod, and when the push rod retracted in the casing, the push rod acted on first micro-gap switch.

By adopting the technical scheme, under the initial state, the push rod contracts in the shell, when the door lock needs automatic control unblock, synchronous machine starts, can drive the push rod through drive mechanism and move to the shell outward, until pushing up on the unlocking device of door lock, because adopt synchronous machine as drive power, synchronous machine nondirectional rotation, when the external force moment value that the push rod receives is greater than the resistance torque of motor, synchronous machine can drive mechanism antiport for the automatic withdrawal of push rod can realize push rod reciprocating motion, compare in direct current motor, need not to adopt complicated circuit switching to realize. When the push rod is integrally retracted into the shell, the rear end of the push rod is abutted against the first microswitch, and then the signal feedback of the position of the push rod can be carried out through the first microswitch. So, use with the door lock cooperation, through the automatic flexible of push rod, can realize automatic unblock, in time detect and the effect of feedback position point to synchronous machine can order about push rod reciprocating motion after the circular telegram.

The utility model is further provided with: the push rod is provided with a guide inclined plane, the guide inclined plane is arranged towards the direction that the push rod retracts into the shell, and the guide inclined plane is matched with a contact piece of the first microswitch.

Through adopting above-mentioned technical scheme, when the push rod was retracted to the casing in completely, the direction inclined plane was contradicted in first micro-gap switch's contact, can be so that first micro-gap switch switches on feedback signal, and the direction inclined plane cooperates with first micro-gap switch's contact slope, is difficult for causing the damage.

The utility model is further provided with: the transmission mechanism comprises a gear set and a rack which are meshed with each other, and the rack is integrally formed on the side wall of the push rod.

Through adopting above-mentioned technical scheme, after synchronous machine starts, drive the gear train and drive the gear train transmission in proper order, the gear train can drive the relative casing concertina movement of push rod through the rack, and the motion process is more steady, and is more accurate to unlocking device's control action when the push rod stretches out.

The utility model is further provided with: the push rod is including preceding pole and the back pole that the components of a whole that can function independently set up, passes through elastic component elastic connection between preceding pole and the back pole, still is equipped with anti-disengaging structure between preceding pole and the back pole, and the back pole is contradicted with first micro-gap switch and is cooperated, and back pole and drive mechanism transmission.

Through adopting above-mentioned technical scheme, when the whole in-process that stretches out of push rod, synchronous machine orders about the direction motion of back pole to stretching out the casing through drive mechanism, and under the supporting role of elastic component, the back pole promotes the front rod motion, and after current pole was blockked by external force, the back pole still moved certain distance forward under synchronous machine's drive effect for the elastic component is compressed gradually, so, forms one section buffer stroke between messenger's front rod and the back pole. When synchronous motor drive push rod reverse withdrawal, synchronous motor drives preceding pole reverse motion earlier, when the elastic component no longer compressed by pressure, the pole withdraws back in the casing before the back pole passes through anti-disengaging structure drive, contradicts in first micro-gap switch until the back pole, so, can maintain a period when the front pole stretches out and supports in the external component.

The utility model is further provided with: the elastic piece sets up to expanding spring, and expanding spring's one end supports in the front rod, and expanding spring's the other end supports in the back pole, and expanding spring has the motion trend of ordering about the front rod to keep away from the back pole all the time.

The utility model is further provided with: the rear rod is provided with a positioning column, and one end of the telescopic spring is sleeved on the positioning column.

Through adopting above-mentioned technical scheme, with the expanding spring cover on the reference column for expanding spring is spacing at flexible in-process, is difficult for taking place the skew and breaks away from.

The utility model is further provided with: the anti-disengaging structure is including locating the first lug of preceding pole, locating the second lug of back pole, and the preceding spout that supplies the second lug to slide is still seted up to the preceding pole, and the back spout that supplies first lug to slide is still seted up to the back pole, and first lug cooperates with second lug backstop.

By adopting the technical scheme, when the elastic piece is compressed, the first lug slides along the rear sliding groove, and the second lug slides along the front sliding groove; when the rear rod moves towards the direction of retracting the shell, the first lug and the second lug stop each other, so that the rear rod can pull back the front rod.

The utility model is further provided with: the mounting frame is arranged in the shell, a second microswitch, an elastic block and a supporting spring are further arranged on the mounting frame, a notch is further formed in the mounting frame, and the supporting spring drives the elastic block to extend out of the notch; one end of the elastic block is in press fit with the front rod, and the other end of the elastic block is in interference fit with the second microswitch; when the spring block is pressed down by the front rod, the spring block is abutted to a contact plate acting on the second microswitch.

Through adopting above-mentioned technical scheme, when the current pole moves to the direction that stretches out the casing, the preceding pole corresponds to be located the notch top and impresses the bullet piece in the notch, make simultaneously the other end of bullet piece contradict in second micro-gap switch, second micro-gap switch switches on and feedback signal, it is in the state of stretching out to show the front lever promptly, when the withdrawal of current pole reverse motion, the notch is kept away from to the preceding pole, make the bullet piece reextend the notch under supporting spring's elastic force effect, and the second micro-gap switch's contact is kept away from immediately to the bullet piece other end, make signal feedback stop. Thus, the position of the front rod can be detected and positioned.

The utility model is further provided with: one end of the elastic block abutting against the second microswitch is provided with a guide wedge-shaped surface.

By adopting the technical scheme, when the elastic block is pressed down, the guide wedge-shaped surface moves downwards along with the elastic block and acts on the contact piece of the second microswitch.

The utility model is further provided with: be equipped with the arc spigot surface on the bullet piece, when the front rod stretches out the casing, the bullet piece is impressed in the notch under the guiding action of arc spigot surface, and supporting spring is compressed.

In conclusion, the utility model has the following beneficial effects:

1. the synchronous motor is adopted to drive the push rod to move relative to the shell, and the position of the push rod is detected through the first microswitch, so that the effects of automatic unlocking and timely detection can be realized when the synchronous motor is matched with a door lock, and the push rod can be driven to reciprocate after the synchronous motor is electrified;

2. the push rod is divided into a front rod and a rear rod, the elastic connection between the front rod and the rear rod is realized by adopting an elastic piece, and a buffer stroke is formed between the front rod and the rear rod, so that the front rod can be maintained for a period of time when extending out and abutting against an external part;

3. the position of the front rod can be detected and positioned by adopting the mode that the elastic block is matched with the second microswitch.

Drawings

Fig. 1 is a schematic view of the overall structural relationship of embodiment 1.

Fig. 2 is a schematic diagram of the internal structural relationship of embodiment 1.

Fig. 3 is an exploded view of example 1.

Fig. 4 is a schematic structural relationship between the push rod and the transmission mechanism in embodiment 1.

Fig. 5 is a schematic view of the internal structural relationship of embodiment 2.

Fig. 6 is a schematic structural relationship between the push rod and the transmission mechanism of embodiment 2.

Fig. 7 is an exploded view of example 2.

Fig. 8 is a schematic view showing the fitting relationship between the front bar and the rear bar in embodiment 2.

In the figure: 1. a housing; 11. a bottom case; 12. an upper shell; 13. a through hole; 14. caulking grooves; 2. a synchronous motor; 3. a transmission mechanism; 31. a drive gear; 32. a transmission gear; 4. a push rod; 41. a rack; 42. an extension portion; 43. a guide slope; 44. a front bar; 441. a first bump; 442. a front chute; 443. avoiding the notch; 45. a rear bar; 451. a positioning column; 452. a second bump; 453. a rear chute; 5. a mounting frame; 51. a first microswitch; 52. a second microswitch; 53. a notch; 6. a tension spring; 7. a spring block; 71. an arc-shaped guide surface; 72. a guide wedge surface; 8. supporting the spring.

Detailed Description

The utility model will be further described with reference to the accompanying drawings.

Example 1:

a control device of a door lock is shown in figures 1-4 and comprises a shell 1, wherein the shell 1 comprises a bottom shell 11 and an upper shell 12 buckled on the bottom shell 11, a non-directional synchronous motor 2, a transmission mechanism 3 and a push rod 4 are arranged in the shell 1, the transmission mechanism 3 comprises a gear set and a rack 41 which are meshed with each other, the gear set comprises a driving gear 31 and a plurality of transmission gears 32 which are fixedly arranged on an output shaft of the synchronous motor 2, the transmission gears 32 are respectively meshed with the driving gear 31 and the rack 41, and the rack 41 is integrally formed on the side wall of the push rod 4. After the synchronous motor 2 is started, the gear set is driven to sequentially transmit, the gear set can drive the push rod 4 to do telescopic motion relative to the shell 1 through the rack 41, the motion process is stable, and the control effect on the unlocking device is accurate when the push rod 4 extends out. The casing 1 is provided with a through hole 13 for the front end of the push rod 4 to extend out, the front end of the push rod 4 is provided with an extension part 42, so that the push rod 4 is integrally L-shaped, the casing 1 is provided with an embedded groove 14 for the extension part 42 to be embedded and resisted, and when the push rod 4 is completely retracted in place, the extension part 42 is just embedded in the embedded groove 14.

As shown in fig. 3 and 4, a mounting frame 5 is further disposed in the housing 1, a first microswitch 51 is fixedly mounted at the rear end of the mounting frame 5, the first microswitch 51 is matched with the push rod 4, a guide inclined plane 43 is disposed at the rear end of the push rod 4, the guide inclined plane 43 is disposed in a direction in which the push rod 4 retracts into the housing 1, and the guide inclined plane 43 is matched with a contact piece of the first microswitch 51. When the push rod 4 is completely retracted into the housing 1, the guiding inclined plane 43 abuts against the contact of the first micro switch 51, so that the first micro switch 51 is enabled to conduct a feedback signal, and the guiding inclined plane 43 is obliquely matched with the contact of the first micro switch 51, thereby being not easy to damage.

The basic working principle of the embodiment is as follows: under initial condition, push rod 4 contracts in casing 1, when the lock needs automatic control unblock, synchronous machine 2 receives the signal of telecommunication and starts, can drive push rod 4 to casing 1 outer motion through gear train and rack 41 transmission in proper order, until pushing up on the unlocking device of lock, owing to adopt synchronous machine 2 as drive power, synchronous machine 2 non-directional rotation, no matter when just starting or push rod 4 stretches out when target in place, only need push rod 4 receive when the external force moment value is greater than the resistance torque of motor, synchronous machine 2 reversal can drive 3 reverse motions of drive mechanism, make push rod 4 automatic retraction, can realize push rod 4 reciprocating motion, compare in DC motor, need not to adopt complicated circuit switching to realize. When the push rod 4 is integrally retracted into the housing 1, the rear end of the push rod 4 abuts against the first microswitch 51, so that the signal feedback of the position of the push rod 4 can be performed through the first microswitch 51, and the signal is fed back to the external controller. Therefore, in control cooperation with the door lock, the push rod can automatically stretch and retract, the effects of automatic unlocking, timely detection and feedback can be realized, and the synchronous motor 2 can drive the push rod 4 to reciprocate after being electrified.

Example 2:

5-8, the present embodiment is different from embodiment 1 mainly in a push rod 4, where the push rod 4 includes a front rod 44 and a rear rod 45 that are separately disposed, the front rod 44 and the rear rod 45 are elastically connected through an elastic member, the elastic member is a telescopic spring 6, one end of the telescopic spring 6 abuts against the front rod 44, the other end of the telescopic spring 6 abuts against the rear rod 45, the telescopic spring 6 always has a movement tendency that the front rod 44 is away from the rear rod 45, a positioning column 451 is disposed at an end portion of the rear rod 45 close to the front rod 44, and a rear end of the telescopic spring 6 is sleeved on the positioning column 451. The telescopic spring 6 is sleeved on the positioning column 451, so that the telescopic spring 6 is limited in the telescopic process and is not easy to deviate and separate. The first microswitch 51 is correspondingly arranged on the rear rod 45, the rear rod 45 is in interference fit with the first microswitch 51, a rack 41 is arranged on the side wall of the rear rod 45, and the rear rod 45 is in transmission fit with the transmission mechanism 3 through the rack 41.

As shown in fig. 8, an anti-separation structure is further disposed between the front rod 44 and the rear rod 45, the anti-separation structure includes a first protrusion 441 disposed on the front rod 44 and a second protrusion 452 disposed on the rear rod 45, the front rod 44 further defines a front sliding slot 442 for the second protrusion 452 to slide, the rear rod 45 further defines a rear sliding slot 453 for the first protrusion 441 to slide, and the first protrusion 441 and the second protrusion 452 are engaged with each other in a front-back manner and are in stop fit.

As shown in fig. 6 and 7, the mounting bracket 5 is further vertically provided with a second microswitch 52, an elastic block 7 and a supporting spring 8, the second microswitch 52 is correspondingly arranged at the front rod 44, the mounting bracket 5 is further provided with a notch 53, one end of the supporting spring 8 is abutted against the elastic block 7, the other end of the supporting spring 8 is abutted against the mounting bracket 5, and the supporting spring 8 drives the elastic block 7 to have a movement tendency of extending out of the notch 53 all the time; the upper end of bullet piece 7 is equipped with arc guide surface 71, and bullet piece 7 is the push fit down with the rear portion of preceding pole 44, and the front end of preceding pole 44 is equipped with dodges breach 443, and when preceding pole 44 withdrawed in casing 1, dodge breach 443 and bullet piece 7 upper end and dodge the cooperation, and when preceding pole 44 stretched out casing 1, bullet piece 7 was impressed in notch 53 under the guide effect of arc guide surface 71, and supporting spring 8 is compressed. In addition, the lower end of the elastic block 7 is further provided with a guide wedge-shaped surface 72, the elastic block 7 is in interference fit with the second microswitch 52 through the guide wedge-shaped surface 72, and when the front rod 44 presses down the elastic block 7, the elastic block 7 is in interference effect on a contact piece of the second microswitch 52.

The basic working principle of the embodiment is as follows: when the push rod 4 integrally extends, the synchronous motor 2 drives the rear rod 45 to move in the direction of extending out of the housing 1 through the transmission mechanism 3, under the supporting action of the extension spring 6, the rear rod 45 pushes the front rod 44 to move, the front rod 44 correspondingly presses the elastic block 7 into the notch 53 when being located above the notch 53, meanwhile, the guide wedge-shaped surface 72 of the elastic block 7 is abutted against the second micro switch 52, the second micro switch 52 is switched on and feeds back a signal, and the front rod 44 is in an extending state. When the front rod 44 is blocked by an external force, the rear rod 45 still moves forward for a certain distance under the driving action of the synchronous motor 2, so that the extension spring 6 is gradually compressed, and thus, a buffer stroke is formed between the front rod 44 and the rear rod 45. When the elastic member is compressed, the first protrusion 441 slides along the rear slide groove 453, and the second protrusion 452 slides along the front slide groove 442.

When the synchronous motor 2 drives the push rod 4 to retract reversely, the synchronous motor 2 drives the front rod 44 to move reversely, when the extension spring 6 is no longer compressed by pressure, the first bump 441 and the second bump 452 stop against each other, so that the rear rod 45 acts on the front rod 44 to pull back, the front rod 44 can be driven to retract into the housing 1 through the anti-disengaging structure until the rear rod 45 abuts against the first micro switch 51, and thus, the front rod 44 can be maintained for a period of time when extending out and abutting against an external component.

The front rod 44 moves away from the notch 53, so that the spring block 7 is extended out of the notch 53 again by the elastic force of the supporting spring 8, and the other end of the spring block 7 moves away from the contact of the second microswitch 52, so that the signal feedback stops. In this manner, the position of the front rod 44 can be detected and located.

The above description is only a preferred embodiment of the present invention, and all equivalent changes or modifications of the structure, characteristics and principles described in the present invention are included in the scope of the present invention.

Claims

1. A controlling means of lock, including casing (1), its characterized in that: a synchronous motor (2), a transmission mechanism (3) and a push rod (4) are arranged in the shell (1), the transmission mechanism (3) is in transmission fit with an output shaft of the synchronous motor (2), and the transmission mechanism (3) drives the push rod (4) to extend or retract relative to the shell (1); still be equipped with first micro-gap switch (51) in casing (1), first micro-gap switch (51) with push rod (4) cooperate, work as push rod (4) retract when in casing (1), push rod (4) act on first micro-gap switch (51).

2. The control device for a door lock according to claim 1, wherein: the push rod (4) is provided with a guide inclined plane (43), the guide inclined plane (43) is arranged towards the direction that the push rod (4) retracts into the shell (1), and the guide inclined plane (43) is matched with a contact piece of the first microswitch (51).

3. The control device for a door lock according to claim 1, wherein: the transmission mechanism (3) comprises a gear set and a rack (41) which are meshed with each other, and the rack (41) is integrally formed on the side wall of the push rod (4).

4. The control device for a door lock according to claim 1, wherein: push rod (4) including preceding pole (44) and back pole (45) that the components of a whole that can function independently set up, preceding pole (44) with through elastic component elastic connection between back pole (45), preceding pole (44) with still be equipped with anti-disengaging structure between back pole (45), back pole (45) with first micro-gap switch (51) conflict cooperation, just back pole (45) with drive mechanism (3) transmission cooperation.

5. The control device for a door lock according to claim 4, wherein: the elastic piece is set to be an expansion spring (6), one end of the expansion spring (6) abuts against the front rod (44), the other end of the expansion spring (6) abuts against the rear rod (45), and the expansion spring (6) always has a movement trend of driving the front rod (44) to be far away from the rear rod (45).

6. The control device for a door lock according to claim 5, wherein: the rear rod (45) is provided with a positioning column (451), and one end of the telescopic spring (6) is sleeved on the positioning column (451).

7. The control device for a door lock according to claim 4, wherein: the anti-disengaging structure comprises a first convex block (441) arranged on the front rod (44) and a second convex block (452) arranged on the rear rod (45), wherein a front sliding groove (442) for the second convex block (452) to slide is further formed in the front rod (44), a rear sliding groove (453) for the first convex block (441) to slide is further formed in the rear rod (45), and the first convex block (441) is matched with the second convex block (452) in a stopping way.

8. The control device for a door lock according to claim 4, wherein: a mounting rack (5) is mounted in the shell (1), a second microswitch (52), an elastic block (7) and a supporting spring (8) are further arranged on the mounting rack (5), a notch (53) is further formed in the mounting rack (5), and the supporting spring (8) drives the elastic block (7) to extend out of the notch (53); one end of the elastic block (7) is in press fit with the front rod (44) in a downward pressing mode, and the other end of the elastic block (7) is in interference fit with the second microswitch (52); when the front rod (44) presses the elastic block (7) downwards, the elastic block (7) is abutted against a contact piece acting on the second microswitch (52).

9. The control device for a door lock according to claim 8, wherein: one end of the elastic block (7) abutting against the second microswitch (52) is provided with a guide wedge-shaped surface (72).

10. The control device for a door lock according to claim 8, wherein: the spring block (7) is provided with an arc-shaped guide surface (71), when the front rod (44) extends out of the shell (1), the spring block (7) is pressed into the notch (53) under the guide effect of the arc-shaped guide surface (71), and the supporting spring (8) is compressed.