A two-stage locking intelligent lock body

Abstract

The present invention discloses a two-stage locking intelligent lock body, wherein a square tongue in the lock body is riveted with a sliding plate, and the sliding plate realizes relative movement with the square tongue body along the riveted through hole; the groove slope on the left side of the sliding plate contacts the head of the square tongue peach arranged on the left side of the sliding plate; the square tongue peach is sheathed with a gear, and the motor gear box drives the gear to rotate while driving the head of the square tongue peach to rotate and snap into the groove of the sliding plate, and the sliding plate moves upward along the riveted through hole while keeping the square tongue stationary; the oblique tongue locking mechanism, wherein one end of the fork contacts the top side of the sliding plate, and the other end of the fork is embedded in the slot body of the clamping block, and the rotating shaft of the fork is tightly held with a torsion spring, and when the sliding plate moves upward, the torsion spring restores the deformation and drives the clamping block to move in the direction of the oblique tongue to lock the oblique tongue; the switch mechanism is installed on the moving track of the induction tongue and the sliding plate, and is electrically connected to the motor gear box. The present invention improves the automation degree of the lock body through two-stage locking.

Description

Technical Field

[0001] The present invention relates to the field of smart locks, and in particular to a two-stage locking smart lock body. Background Art

[0002] At present, smart locks not only bring convenience and security to everyone's life, but also solve all the above pain points in life. Smart locks have a variety of ways to open the door, such as swiping cards, passwords, fingerprints, etc. The diversity of unlocking methods can easily solve different situations of users; in addition, compared with traditional mechanical locks, smart locks are more secure. Therefore, in today's era of rapid technological development, the use of smart locks is becoming more and more popular.

[0003] The locking of a smart lock generally involves pushing the oblique tongue into the corresponding oblique tongue hole on the door side and locking the oblique tongue to complete the door locking action. However, this door locking method is only a simple first-level locking method, which is not very safe. If you want to improve the safety of the door lock, you need to manually rotate the knob to push the square tongue to lock it in the lock body hole on the door side, but the manual method is not very intelligent. In addition, the oblique tongue of a general door lock does not have a locking function. When the door is closed, the oblique tongue is not locked, causing the door lock to pop out, affecting the quality and speed of locking the door. Furthermore, the square tongue needs to be positioned very accurately to push the square tongue hole into the square tongue hole. If the smart lock and the door are not positioned well, the square tongue cannot be smoothly pushed into the square tongue hole, or the square tongue is pushed out too quickly or too slowly during the door closing process, which may cause the smart lock to fail to achieve the door locking function. Summary of the invention

[0004] In order to overcome the deficiencies of the prior art, an object of the present invention is to provide a smart lock with a double locking effect, which allows the square tongue to pop out automatically after the oblique tongue is locked and has a high degree of automation.

[0005] The purpose of the present invention is achieved by the following technical solutions:

[0006] A two-stage locking intelligent lock body, comprising:

[0007] The lock housing has openings on the same side of the lock housing, and each opening is sequentially provided with a sensing tongue, a square tongue and an oblique tongue, and the square tongue is installed on the surface of the lock housing through a sliding groove;

[0008] The driving mechanism comprises a motor gearbox, a gear, a square tongue nut and a sliding plate, wherein a sliding plate is riveted on the tongue body of the square tongue, the length of the riveted through hole on the surface of the sliding plate is greater than the diameter of the rivet, and the sliding plate realizes relative movement with the tongue body of the square tongue along the riveted through hole; a groove is provided on the left side of the sliding plate, and an inclined surface is provided on the outer edge of the groove, and the inclined surface contacts with the head of the square tongue nut arranged on the left side of the sliding plate; a gear is provided on the outer sleeve of the square tongue nut, and the gear is electrically connected to the motor gearbox, and the motor gearbox drives the gear to rotate and drives the head of the square tongue nut to rotate and clamp into the groove of the sliding plate, and the sliding plate moves upward along the riveted through hole while keeping the square tongue stationary; the square tongue nut is clamped in the groove and continues to rotate, pushing the square tongue to pop out;

[0009] The latch bolt locking mechanism is installed on the surface of the lock housing between the latch bolt and the square bolt, and includes a torsion spring, a shift fork and a positioning block. The positioning block is installed on the lock housing on the left side of the latch bolt through a sliding groove, and a groove body is provided at the lower end of the positioning block; one end of the shift fork contacts the top side of the sliding plate, and the other end of the shift fork is embedded in the groove body of the positioning block. A torsion spring is tightly held on the rotating shaft of the shift fork. When the sliding plate moves upward, the torsion spring recovers its deformation and drives the positioning block to move toward the direction of the latch bolt, thereby locking the latch bolt;

[0010] The switch mechanism is respectively installed on the moving tracks of the sensing tongue and the sliding plate, and the switch mechanism is electrically connected to the motor gear box of the driving mechanism.

[0011] Furthermore, a locking groove is provided on one side of the oblique tongue close to the locking block, and a locking protrusion matching the locking groove is provided on one side of the locking block close to the oblique tongue.

[0012] When the locking protrusion of the positioning block is pushed into the locking groove of the oblique tongue, the oblique tongue is locked to achieve positioning of the oblique tongue.

[0013] Furthermore, the switch mechanism includes a first microswitch and a second microswitch, the driving rod of the first microswitch being arranged on the downward movement trajectory of the connecting rod of the sensing tongue, and when the sensing tongue touches the driving rod of the first microswitch during the downward movement, a first driving signal is generated and transmitted to the motor gear box; the driving rod of the second microswitch contacts the side of the sliding plate, and when the sliding plate moves upward until the driving rod of the second microswitch is separated from the sliding plate, a second driving signal is generated and transmitted to the motor gear box.

[0014] The drive signal is transmitted to the motor gear box through two micro switches, making the movement of the gear more accurate, improving the locking accuracy and the degree of automation.

[0015] Furthermore, when the motor gear box receives the first drive signal, it controls the shifting head of the square tongue shifting peach to rotate into the groove of the sliding plate. When the motor gear box receives the second drive signal, it controls the square tongue shifting peach to stop for 1 to 2 seconds, and then pushes the sliding plate and the square tongue to move up synchronously to achieve the extension of the square tongue.

[0016] Furthermore, the motor gear box includes a motor and a driving wheel, the driving wheel is meshed with the gear, and the motor is electrically connected to the driving wheel, so that the driving wheel drives the gear to rotate.

[0017] Furthermore, when the shift head of the square-tongue shift peach is stuck on the inclined surface of the sliding plate, the torsion spring holds the shift fork tightly and the top end of the shift fork contacts the positioning portion of the sliding plate, and the square-tongue shift peach, the sliding plate and the shift fork are in a balanced state.

[0018] Furthermore, a guide plate is sheathed on the connecting rod of the sensing tongue to maintain the connecting rod of the sensing tongue to perform vertical movement.

[0019] Furthermore, a limiting portion is installed on the surface of the lock housing, and the limiting portion is installed on the rotation track of the end of the torsion spring to prevent the torsion spring from rotating too much and causing the shift fork to fail to work normally.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] The square tongue pull peach is pulled out in two stages. The pull head of the first stage square tongue pull peach enters the groove of the sliding plate, and the oblique tongue is locked in advance by the blocking block before the square tongue is pushed out; when the square tongue pull peach is pulled out in the second stage, the sliding plate is pushed to push the square tongue smoothly into the square tongue hole in the door frame, thereby improving the accuracy of pushing out the square tongue and improving the degree of automation of the door lock. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is one of the structural schematic diagrams of the intelligent lock body of the present invention;

[0023] Figure 2 This is the second structural diagram of the intelligent lock body of the present invention;

[0024] In the figure: 1. lock housing; 2. sensing tongue; 3. square tongue; 4. oblique tongue; 5. first micro switch; 6. motor gear box; 7. gear; 8. square tongue shift peach; 9. second micro switch; 10. sliding plate; 11. groove; 12. inclined surface; 13. torsion spring; 14. shift fork; 15. positioning block. DETAILED DESCRIPTION

[0025] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment.

[0026] like Figure 1 , Figure 2 As shown, a two-stage locking smart lock body:

[0027] The lock shell 1 of the smart lock body is provided with openings on the same side, and each opening is respectively installed with a sensing tongue 2, a square tongue 3 and an oblique tongue 4, and the square tongue 3 is located between the sensing tongue 2 and the oblique tongue 4, making the structure of the entire smart lock body more compact. The sensing tongue 2 and the oblique tongue 4 both extend outside the opening of the lock buckle, and when the smart lock body is pushed into the door frame, the sensing tongue 2 and the oblique tongue 4 are pressed down by the action of the door frame, thereby triggering a series of subsequent actions to be executed, and the square tongue 3 is always located in the lock shell 1 when the smart lock body is not locked, and the tongue body of the square tongue 3 is fixed on the surface of the lock shell 1 through a slide groove, and the square tongue 3 can pop out from the corresponding opening along the slide groove, thereby realizing the locking function of the door lock.

[0028] The end of the sensing tongue 2 is connected to a connecting rod. When the sensing tongue 2 is pressed down, the connecting rod is pushed downward synchronously. A guide plate is sleeved outside the connecting rod. Under the action of the guide plate, the connecting rod can be guaranteed to keep moving vertically at all times. A first micro switch 5 is installed below the connecting rod of the sensing tongue 2. The driving rod of the first micro switch 5 is set on the downward movement track of the connecting rod of the sensing tongue 2. When the sensing tongue 2 touches the driving rod of the first micro switch 5 after moving down to a certain distance, a first driving signal is generated and transmitted to the driving mechanism.

[0029] The driving mechanism is installed below the sensing tongue 2 and the square tongue 3, and the driving mechanism includes a motor gear box 6, a gear 7, a square tongue shifting peach 8 and a sliding plate 10. The motor gear box 6 is electrically connected to the gear 7, and the motor gear box 6 drives the gear 7 to rotate; the gear 7 is sleeved outside the rotating shaft of the square tongue shifting peach 8, and the shifting head of the square tongue shifting peach 8 extends outward. When the motor gear box 6 drives the gear 7 to rotate, the square tongue shifting peach 8 rotates synchronously with the gear 7.

[0030] The surface of the tongue of the square tongue 3 is riveted with a sliding plate 10, and the length of the riveted through hole of the sliding plate 10 is greater than the diameter of the rivet, so when the square tongue 3 is in a stationary state, the sliding plate 10 can still move slightly along the riveted through hole. The left side of the sliding plate 10 is installed with a square tongue nut 8, and a groove 11 is provided on the side of the sliding plate 10 close to the square tongue nut 8. The position of the groove 11 coincides with the movement trajectory of the square tongue nut 8. The outer edge of the groove 11 is provided with a slope 12, and the slope 12 contacts the outer edge of the square tongue nut 8. When the square tongue shift peach 8 is stuck in the inclined surface 12 of the sliding plate 10, the sliding plate 10 can be positioned, and the force applied to the sliding plate 10 by the shift fork 14 can be offset, so that the shift fork 14, the sliding plate 10 and the square tongue shift peach 8 are in a balanced state; when the square tongue shift peach 8 rotates to disengage from the inclined plate of the sliding plate 10, the shift head of the square tongue shift peach 8 can be screwed into the groove 11 of the sliding plate 10, at this time, the balanced state of the shift fork 14, the sliding plate 10 and the square tongue shift peach 8 is broken, and under the action of the torsion spring 13, the shift fork 14 pushes the sliding plate 10 to move slightly upward along the riveted through hole, and the square tongue 3 is still in a stationary state.

[0031] The oblique bolt locking mechanism is installed on the surface of the lock housing 1 between the oblique bolt 4 and the sliding plate 10, and includes a torsion spring 13, a shift fork 14 and a blocking block 15. The torsion spring 13 is sleeved on the rotating shaft of the shift fork 14, one end of the shift fork 14 contacts the top side of the sliding plate 10, and the other end of the shift fork 14 is embedded in the groove body of the blocking block 15; the blocking block 15 is installed on the lock housing 1 on one side of the oblique bolt 4 through the sliding groove; when the torsion spring 13 holds the shift fork 14 tightly, the end of the shift fork 14 presses against the positioning part of the sliding plate 10 to give the sliding plate 10 an upward thrust, but because the square tongue shift peach 8 is stuck on the inclined surface 12 of the sliding plate 10, that is, the square tongue shift peach 8 gives the sliding plate 10 a downward pressure, so the two forces on the sliding plate 10 offset each other, and the sliding plate 10 remains stationary , that is, the sliding plate 10, the square tongue shift peach 8 and the shift fork 14 are in a balanced state; when the torsion spring 13 is in a loosened state, the deformation recovery process of the torsion spring 13 drives the shift fork 14 to rotate, and one end of the shift fork 14 pushes the sliding plate 10 to move upward along the riveted through hole when rotating, and at the same time, the other end of the shift fork 14 pushes the positioning block 15 to move to the right when rotating, and the positioning block 15 gradually approaches the oblique tongue 4 along the slide groove, and the oblique tongue 4 is provided with a locking groove on one side of the oblique tongue 4 close to the positioning block 15, and a locking protrusion matching the locking groove is provided on the side of the positioning block 15 close to the oblique tongue 4; when the locking protrusion of the positioning block 15 is pushed into the locking groove of the oblique tongue 4, the oblique tongue 4 is locked to prevent the oblique tongue 4 from moving, so that the oblique tongue 4 is locked in the oblique tongue 4 hole in the door frame, and the primary locking function is realized.

[0032] A second microswitch 9 is installed on the lower side of the sliding plate 10, and the driving rod of the second microswitch 9 contacts the side of the sliding plate 10. When the sliding plate 10 moves in the direction of the square tongue 3 under the push of the square tongue lever 8 until the driving rod of the second microswitch 9 is separated from the sliding plate 10, a second driving signal is generated and transmitted to the motor gear box 6. The motor gear box 6 controls the square tongue lever 8 to stop for 1 to 2 seconds according to the second driving signal and then controls the motor gear box 6 to rotate again. The gear 7 drives the square tongue lever 8 located in the groove 11 to continue to move upward, pushing the sliding plate 10 and the square tongue 3 to move upward synchronously, until the square tongue 3 is completely pushed out of the lock housing 1, allowing the square tongue 3 to smoothly enter the square tongue 3 hole of the door frame, thereby realizing the secondary locking function.

[0033] The implementation principle of this embodiment is as follows:

[0034] When the smart lock body is in an unlocked state, the head of the square tongue shifter 8 is stuck on the inclined surface 12 of the sliding plate 10, giving the sliding plate 10 a downward force, and the top of the sliding plate 10 is in contact with the shift fork 14. At this time, the torsion spring 13 on the shift fork 14 is in a clamped state, and the shift fork 14 also gives the sliding plate 10 an upward force under the action of the torsion spring 13. The forces on the sliding plate 10 offset each other, so that the sliding plate 10, the square tongue shifter 8 and the shift fork 14 are in a state of mutual balance.

[0035] When the smart lock body is pushed into the door frame, the sensing tongue 2 and the oblique tongue 4 are pressed down by the action of the door frame, and the sensing tongue 2 touches the first microswitch 5. The first microswitch 5 sends a driving signal to the motor gear box 6. The motor gear box 6 drives the gear 7 to rotate, and at the same time drives the head of the square tongue shift peach 8 to disengage from the inclined surface 12 of the sliding plate 10 and enter the groove 11 of the sliding plate 10. At this time, the balance between the sliding plate 10, the square tongue shift peach 8 and the fork 14 is broken; the fork 14 rotates under the state of the torsion spring 13, and during the rotation process, one end of the fork 14 drives the sliding plate 10 to move up along the riveted through hole, and at the same time, the other end of the fork 14 pushes the positioning block 15 to move to the right, and the positioning groove is clamped on the oblique tongue 4, so as to realize the positioning of the oblique tongue 4, and the oblique tongue 4 is limited in the oblique tongue 4 hole in the door frame to realize the first-level locking.

[0036] One end of the shift fork 14 drives the sliding plate 10 to move upward so that the side of the sliding plate 10 is separated from the contact of the second microswitch 9. The second microswitch 9 sends a driving signal to the motor gear box 6. The motor gear box 6 controls the square tongue shifter 8 to stop for 1 to 2 seconds according to the driving signal, and then drives the square tongue shifter 8 in the groove 11 to continue to rotate counterclockwise, pushing the sliding plate 10 and the square tongue 3 to move upward synchronously, thereby pushing the square tongue 3 out of the lock housing 1 and limiting the square tongue 3 in the square tongue 3 hole of the door frame, thereby realizing secondary locking.

[0037] The two-stage locking can improve the security of the smart lock body, and after locking the oblique tongue 4, the square tongue 3 can be pushed out, so that the square tongue 3 can be smoothly pushed into the square tongue 3 hole of the door frame. The compact structure inside the door lock completes a series of door locking actions, thereby improving the automation degree of the smart lock body.

[0038] The above-mentioned embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A two-level locking smart lock body, It is characterized in that include: The lock housing has openings on the same side of the lock housing, and each opening is sequentially provided with a sensing tongue, a square tongue and an oblique tongue, and the square tongue is installed on the surface of the lock housing through a sliding groove; The driving mechanism comprises a motor gearbox, a gear, a square tongue nut and a sliding plate, wherein a sliding plate is riveted on the tongue body of the square tongue, the length of the riveted through hole on the surface of the sliding plate is greater than the diameter of the rivet, and the sliding plate realizes relative movement with the tongue body of the square tongue along the riveted through hole; a groove is provided on the left side of the sliding plate, and an inclined surface is provided on the outer edge of the groove, and the inclined surface contacts with the head of the square tongue nut arranged on the left side of the sliding plate; a gear is provided on the outer sleeve of the square tongue nut, and the gear is electrically connected to the motor gearbox, and the motor gearbox drives the gear to rotate and drives the head of the square tongue nut to rotate and clamp into the groove of the sliding plate, and the sliding plate moves upward along the riveted through hole while keeping the square tongue stationary; the square tongue nut is clamped in the groove and continues to rotate, pushing the square tongue to pop out; The latch bolt locking mechanism is installed on the surface of the lock housing between the latch bolt and the square bolt, and includes a torsion spring, a shift fork and a positioning block. The positioning block is installed on the lock housing on the left side of the latch bolt through a sliding groove, and a groove body is provided at the lower end of the positioning block; one end of the shift fork contacts the top side of the sliding plate, and the other end of the shift fork is embedded in the groove body of the positioning block. A torsion spring is tightly held on the rotating shaft of the shift fork. When the sliding plate moves upward, the torsion spring recovers its deformation and drives the positioning block to move toward the direction of the latch bolt, thereby locking the latch bolt; The switch mechanism is respectively installed on the moving tracks of the sensing tongue and the sliding plate, and the switch mechanism is electrically connected to the motor gear box of the driving mechanism.

2. The two-stage locking smart lock body according to claim 1, It is characterized in that A locking groove is provided on one side of the oblique tongue close to the locking block, and a locking protrusion matching the locking groove is provided on one side of the locking block close to the oblique tongue.

3. The two-stage locking smart lock body according to claim 1, It is characterized in that The switch mechanism includes a first micro switch and a second micro switch. The driving rod of the first micro switch is arranged on the downward movement track of the connecting rod of the sensing tongue. When the sensing tongue touches the driving rod of the first micro switch during the downward movement, a first driving signal is generated and transmitted to the motor gear box; the driving rod of the second micro switch contacts the side of the sliding plate. When the sliding plate moves upward until the driving rod of the second micro switch is separated from the sliding plate, a second driving signal is generated and transmitted to the motor gear box.

4. The two-stage locking smart lock body according to claim 3, It is characterized in that The motor gear box controls the shifting head of the square tongue shifting peach to rotate into the groove of the sliding plate when receiving the first driving signal, and controls the square tongue shifting peach to stop for 1 to 2 seconds when receiving the second driving signal, and then pushes the sliding plate and the square tongue to move up synchronously to realize the extension of the square tongue.

5. The two-stage locking smart lock body according to claim 4, It is characterized in that The motor gear box includes a motor and a driving wheel. The driving wheel is meshed with the gear. The motor and the driving wheel are electrically connected, so that the driving wheel drives the gear to rotate.

6. The two-stage locking smart lock body according to claim 1, It is characterized in that When the shift head of the square tongue shift peach is stuck on the inclined surface of the sliding plate, the torsion spring holds the shift fork tightly and the top end of the shift fork contacts the positioning part of the sliding plate, and the square tongue shift peach, the sliding plate and the shift fork are in a balanced state.

7. The two-stage locking smart lock body according to claim 1, It is characterized in that A guide plate is sleeved on the connecting rod of the sensing tongue to maintain the connecting rod of the sensing tongue to move vertically.

8. The two-stage locking smart lock body according to claim 1, It is characterized in that A limiting portion is installed on the surface of the lock housing, and the limiting portion is installed on the rotation track of the end of the torsion spring.

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