Fully automatic mortise with scissor-type latch bolt locking mechanism

Abstract

The present invention relates to the field of fully automatic locks, and provides a fully automatic lock body with a scissor-type inclined bolt. The fully automatic lock body comprises a handle and a nut assembly, a brake assembly, an inclined bolt assembly, and a signal bolt assembly, and the inclined bolt assembly comprises an inclined bolt spring, an inclined bolt locking piece, an inclined bolt guide block, and a scissor-type inclined bolt. The inclined bolt guide block is provided with a scissor-type inclined bolt, an inclined bolt locking piece, and a brake boss. When closing a door, the door frame overcomes the elastic force of the inclined bolt spring, the scissor-type inclined bolt rotates and presses back the lock body, and pushes the inclined bolt guide block to move into the lock body, and the brake boss limits the push of the brake plate on the inclined bolt locking piece to prevent the scissor-type inclined bolt from being locked in advance before the door is locked in place; at the same time, the signal tongue assembly drives the brake plate push rod to move downward, and releases the normally open control of the brake plate; when the door is locked in place, the inclined bolt guide block is completely ejected under the elastic force of the inclined bolt spring, and the brake plate pushes the inclined bolt locking piece clockwise to lock the rotational movement of the scissor-type inclined bolt, so as to achieve the effect of locking the lock body inclined bolt and closing the door.

Description

Technical Field

[0001] The present invention relates to the field of full-automatic locks, in particular to the field of full-automatic lock body technology. Background Art

[0002] The scissor-shaped latch bolt of the fully automatic lock bodies currently available on the market often causes the lock body and the lock body lining to produce irreversible deformation when subjected to lateral pressure that does not reach the national standard pressure value. This affects the use of the lock body and reduces the safety of the lock body. Therefore, although the fully automatic lock bodies on the market have improved convenience due to the scissor-shaped latch bolt, they have reduced safety. People are pursuing locks that are both convenient and safe. Therefore, improving convenience while ensuring safety has become one of the keys to fully automatic lock bodies.

[0003] In fully automatic locks, scissor-type latch bolts have become one of the important ways to open and close doors. The scissor-type latch bolt is very convenient, especially in that it can be directly installed on the door without distinguishing the left or right door opening direction. However, the only disadvantage is that for this convenience, the lateral force capacity of the latch bolt often does not meet the national standard, thereby reducing the safety of the lock body. Due to the lack of safety of the scissor-type latch bolt, we still have a long way to go in the research and development of the latch bolt type lock body. Summary of the invention

[0004] A fully automatic lock body with a scissor-type oblique tongue locking structure, comprising a handle-push peach assembly, a brake assembly, an oblique tongue assembly, a signal tongue assembly, and a motor assembly, characterized in that: the handle-push peach assembly comprises a handle-push peach plate and a handle-push peach, and the handle-push peach plate is provided with a push claw; the brake assembly comprises a brake plate and a brake plate return spring, an upper push block is provided on the upper side of the front end of the brake plate, a lower push block is provided on the lower side of the front end, and a brake top block is provided at the front end of the brake plate; the oblique tongue assembly comprises an oblique tongue spring, an oblique tongue locking sheet, an oblique tongue guide block, and a scissor-type oblique tongue; the front part of the oblique tongue locking sheet is provided with an upper clamping position and a lower clamping position, the middle part is provided with a locking sheet shaft hole, and the rear part is provided with an upper push rod and a lower push rod; the side of the oblique tongue guide block is provided with a brake The boss, the front end of the oblique tongue guide block is provided with an oblique tongue pin hole, the middle part is provided with a locking piece embedding groove, the locking piece embedding groove is provided with locking piece pin holes on both sides, and the end is provided with a spring embedding column; the scissor-type oblique tongue includes an upper oblique tongue and a lower oblique tongue, the upper oblique tongue is provided with an upper pin hole in the middle part, and an upper locking block is provided at the rear; the lower oblique tongue is provided with a lower pin hole in the middle part, and a lower locking block is provided at the rear; a oblique tongue pin shaft is provided to pass through the upper pin hole, the oblique tongue pin hole, and the lower pin hole, and the upper oblique tongue and the lower oblique tongue are pivotally connected to the front end of the oblique tongue guide block; a locking piece pin shaft is provided to pass through the locking piece shaft hole and the locking piece pin hole to pivot the oblique tongue locking piece in the locking piece embedding groove; the oblique tongue spring is embedded in the spring embedding column at the end of the oblique tongue guide block; the scissor-type oblique tongue rotates around the oblique tongue pin shaft, and the oblique tongue locking piece rotates around the locking piece pin shaft. The upper clamping position cooperates with the upper locking block to lock the upper oblique tongue, and the lower clamping position cooperates with the lower locking block to lock the lower oblique tongue. The signal tongue assembly includes a signal tongue and a brake plate push rod; the brake plate push rod is in abutment with a push-down block at the lower side of the front end of the brake plate. The motor assembly provides power for the door opening and closing action.

[0005] When the door is closed, the door frame overcomes the elastic force of the inclined bolt spring, so that the scissor-type inclined bolt on the force-bearing side rotates and presses back the lock body, and the scissor-type inclined bolt pressed back pushes the inclined bolt guide block to pull the scissor-type inclined bolt on the other side to move into the lock body, so that the braking boss of the inclined bolt guide block limits the pushing of the braking plate on the inclined bolt locking piece, preventing the scissor-type inclined bolt from being locked in advance before the door is locked in place; at the same time, the door frame overcomes the elastic force of the signal spring to press the signal tongue assembly back into the lock body, and the pressed back signal tongue assembly drives the brake plate push rod to move downward, thereby releasing the brake plate and putting it in a normally open state; when the door is locked in place, the inclined bolt guide block is completely ejected under the elastic force of the inclined bolt spring, and the brake plate is pushed clockwise by the upper push block under the elastic force of the brake plate reset spring, the upper clamping position clamps the upper inclined bolt, and the lower clamping position clamps the lower inclined bolt, thereby locking the rotational movement of the scissor-type inclined bolt, so as to achieve the effect of locking the lock body inclined bolt and closing the door.

[0006] When opening the door, the handle lever rotates under the action of the handle force; the rotation of the handle lever pushes the brake plate; the pushed brake plate pushes the oblique bolt locking piece, causing the oblique bolt locking piece to rotate counterclockwise; the oblique bolt locking piece rotates counterclockwise to unlock the rotation action of the scissor-type oblique bolt, thereby achieving the effect of unlocking the oblique bolt of the lock body and opening the door. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Figure 1 This is a schematic diagram of the internal three-dimensional structure of the lock box of the present invention;

[0008] Figure 2 This is a schematic diagram of the structure of the lock body of the present invention before locking;

[0009] Figure 3 This is a schematic diagram of the structure of the lock body of the present invention after being locked;

[0010] Figure 4 This is a schematic diagram of the brake plate structure of the present invention;

[0011] Figure 5 This is a schematic diagram of the assembly of the latch bolt assembly of the present invention;

[0012] Figure 6 This is a schematic diagram of the structure of the oblique tongue locking piece of the present invention;

[0013] Figure 7 This is a schematic diagram of the scissor-type latch bolt before locking of the present invention;

[0014] Figure 8 This is a schematic diagram of the scissor-type latch bolt after being locked;

[0015] Fig. 9 This is a schematic diagram of the cooperation between the inclined tongue guide block and the inclined tongue pin of the present invention;

[0016] Fig.10 It is a schematic diagram of the oblique tongue guide block and the locking piece pin of the present invention;

[0017] Fig.11 It is a schematic diagram of the upper inclined tongue structure of the scissor-type inclined tongue of the present invention;

[0018] Fig.12 It is a schematic diagram of the structure of the lower inclined tongue of the scissor-type inclined tongue of the present invention.

[0019] The numbers in the figure indicate

[0020] 1. Lock shell;

[0021] 2. Handle peach assembly 21. Handle peach plate 211. Paw 22. Handle peach;

[0022] 3. Braking assembly 31. Braking plate 311. Push-up block 312. Push-down block 313. Braking plate top block 32. Braking plate return spring;

[0023] 4. Oblique tongue assembly 41 Oblique tongue spring 42. Oblique tongue locking piece 421. Upper clamping position 422. Lower clamping position 423. Upper push rod 424. Lower push rod 425. Locking piece shaft hole 43. Oblique tongue guide block 431. Braking boss 432. Limiting slide block 433. Oblique tongue pin hole 434. Locking piece embedded groove 435. Locking piece pin hole 436. Locking piece pin shaft 437. Spring embedded column 438. Oblique tongue pin shaft 44. Scissor-type oblique tongue 441. Upper oblique tongue 4411. Upper pin hole 4412. Upper locking block 442. Lower oblique tongue 4421. Lower pin hole 4422. Lower locking block;

[0024] 5. Signal tongue assembly 51. Signal tongue 52. Brake plate push rod. DETAILED DESCRIPTION

[0025] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0026] A fully automatic lock body with a scissor-type oblique tongue locking structure, comprising a lock housing 1, a handle peach assembly 2, a brake assembly 3, an oblique tongue assembly 4, and a signal tongue assembly 5, wherein the handle peach assembly 2 comprises a handle peach plate 21 and a handle peach 22, and a claw 211 is arranged on the handle peach plate 21; the brake assembly 3 comprises a brake plate 31 and a brake plate return spring 32, and an upper push block 311 is arranged on the upper side of the front end of the brake plate 31, and a lower push block is arranged on the lower side of the front end 312, a brake top block 313 is provided at the front end of the brake plate 31; the oblique tongue assembly 4 includes an oblique tongue spring 41, an oblique tongue locking piece 42, an oblique tongue guide block 43, and a scissor-shaped oblique tongue 44; the oblique tongue locking piece 42 is provided with an upper clamping position 421 and a lower clamping position 422 at the front, a locking piece shaft hole 425 is provided in the middle, and an upper push rod 423 and a lower push rod 424 are provided at the rear; a brake boss 431 is provided on the side of the oblique tongue guide block 43, and an oblique tongue pin is provided at the front end of the oblique tongue guide block 43 The scissor-shaped inclined tongue 44 comprises an upper inclined tongue 441 and a lower inclined tongue 442. The upper inclined tongue 441 has an upper pin hole 4411 in the middle and an upper locking block 4412 at the rear. The lower inclined tongue 442 has a lower pin hole 4421 in the middle and a lower locking block 4422 at the rear. A inclined tongue pin shaft 438 is provided passing through the upper pin hole 4411. , the upper oblique tongue 441 and the lower oblique tongue 442 are pivotally connected to the front end of the oblique tongue guide block 43; a locking plate pin shaft 436 is provided to pass through the locking plate shaft hole 425 and the locking plate pin hole 435 to pivot the oblique tongue locking plate 42 to the locking plate embedded groove 434; the oblique tongue spring 41 is embedded in the spring embedded column 437 at the end of the oblique tongue guide block 43; the scissor-shaped oblique tongue rotates around the oblique tongue pin shaft 438, and the oblique tongue locking plate rotates around the locking plate pin shaft 436. The upper clamping position 421 cooperates with the upper locking block 4412 to lock the upper oblique tongue 441, and the lower clamping position 422 cooperates with the lower locking block 4422 to lock the lower oblique tongue 442. The signal tongue assembly 5 includes a signal tongue 51 and a brake plate push rod 52; the brake plate push rod 52 abuts and cooperates with the lower push block 312 at the lower side of the front end of the brake plate 31.

[0027] When closing the door, the door frame overcomes the elastic force of the latch spring 41, causing the scissor-shaped latch bolt 44 on the side receiving the force to rotate and press back into the lock body. The pressed-back scissor-shaped latch bolt 44 pushes the latch bolt guide block 43 to pull the other scissor-shaped latch bolt 44 into the lock body, causing the brake boss 431 of the latch bolt guide block 43 to limit the brake plate 31 from pushing the latch bolt locking piece 42, thereby preventing the scissor-shaped latch bolt 44 from being locked in advance before the door is locked in place. At the same time, the door frame presses the signal tongue assembly 5 back into the lock body, and the pressed-back signal tongue assembly 5 drives the brake plate push rod 52 to move downward, thereby releasing the brake plate 31 to put it in a normally open state; when the door is locked in place, the inclined bolt guide block 43 is fully ejected under the elastic force of the inclined bolt spring 41, and the brake plate 31 is under the elastic force of the brake plate return spring 32, and the upper push block 311 pushes the inclined bolt locking piece 42 clockwise, the upper clamping position 421 clamps the upper inclined bolt 441, and the lower clamping position 422 clamps the lower inclined bolt 442, locking the rotational movement of the scissor-type inclined bolt 44, so as to achieve the effect of locking the lock body inclined bolt and closing the door.

[0028] When opening the door, the handle lever 22 rotates under the action of the handle force; the rotation of the handle lever 22 pushes the brake plate 31; the pushed brake plate 31 pushes the oblique bolt locking piece 42, causing the oblique bolt locking piece 42 to rotate counterclockwise; the oblique bolt locking piece 42 rotates counterclockwise to unlock the locking of the rotation action of the scissor-type oblique bolt 44, thereby achieving the effect of unlocking the lock body oblique bolt and opening the door.

[0029] The present invention adds a latch bolt locking piece 42, so that when the lock body is locked, the latch bolt locking piece 42 will lock the rotation of the latch bolt, and the lateral pressure cannot be changed into an axial force, and the lateral force bearing capacity of the latch bolt is increased. This avoids the defect that when there is no latch bolt locking piece, the latch bolt is simply locked by the brake plate 31, so that the lateral force on the latch bolt is changed into an axial force, which easily causes the lock body to deform.

[0030] The present invention adds a brake boss 431 of the oblique tongue guide block 43 to ensure that when the oblique tongue is not fully ejected, the brake boss 431 always hinders the pushing action of the brake plate 31 on the oblique tongue locking piece 42, so that the oblique tongue locking piece 42 cannot lock the oblique tongue before the oblique tongue is fully ejected. Only when the oblique tongue is fully ejected, the brake boss 431 releases the brake plate 31 to drive the oblique tongue locking piece 42 to lock the oblique tongue. This avoids the defect that when the brake boss 431 of the oblique tongue guide block 43 is not provided, the oblique tongue is not fully ejected when the door is closed, and the oblique tongue locking piece 42 is driven by the brake plate 31 to hinder the action of the oblique tongue, thereby causing the oblique tongue to be unable to fully eject in the end.

[0031] Through the above technical scheme, the scissor-shaped inclined tongue 44 of the lock body provided by the present invention can still keep the lock body without obvious deformation or damage and loss of function after being subjected to a certain lateral pressure; when the scissor-shaped inclined tongue 44 is subjected to a certain lateral force, the lock body can be opened by a mechanical handle; the lock body also has the effect of locking the door when the square tongue is not extended.

Claims

1. A fully automatic lock body with a scissor-type oblique tongue locking structure, comprising a handle and a peach assembly, a brake assembly, an oblique tongue assembly, and a signal tongue assembly, characterized in that: The inclined bolt assembly comprises an inclined bolt locking piece, an inclined bolt guide block, and a scissor-type inclined bolt; a locking piece shaft hole is provided in the middle of the inclined bolt locking piece, and an upper push rod and a lower push rod are provided at the rear; an inclined bolt pin hole is provided at the front end of the inclined bolt guide block, and a locking piece embedding groove is provided in the middle of the inclined bolt guide block, and locking piece pin holes are provided on both sides of the locking piece embedding groove; the scissor-type inclined bolt comprises an upper inclined bolt and a lower inclined bolt; an upper pin hole is provided in the middle of the upper inclined bolt, and a lower pin hole is provided in the middle of the lower inclined bolt; an inclined bolt pin shaft is provided to pass through the upper pin hole, the inclined bolt pin hole and the lower pin hole, and the upper inclined bolt and the lower inclined bolt are pivotally connected to the front end of the inclined bolt guide block; a locking piece pin shaft is provided to pass through the locking piece shaft hole and the locking piece pin hole to pivot the inclined bolt locking piece in the locking piece embedding groove; the scissor-type inclined bolt rotates around the inclined bolt pin shaft, and the inclined bolt locking piece rotates around the locking piece pin shaft ; The front part of the inclined tongue locking piece is provided with an upper clamping position and a lower clamping position, the rear part of the upper inclined tongue is provided with an upper locking block, and the rear part of the lower inclined tongue is provided with a lower locking block; the upper clamping position cooperates with the upper locking block to lock the upper inclined tongue, and the lower clamping position cooperates with the lower locking block to lock the lower inclined tongue; the inclined tongue assembly includes an inclined tongue spring, and the end of the inclined tongue guide block is provided with a spring embedded column, and the inclined tongue spring is embedded in the spring embedded column; the brake assembly includes a brake plate and a brake plate return spring, the upper side of the front end of the brake plate is provided with an upper push block, the lower side of the front end is provided with a lower push block, and the front end of the brake plate is provided with a brake top block; the upper push block abuts and cooperates with the upper push rod of the inclined tongue locking piece, and the lower push block abuts and cooperates with the lower push rod of the inclined tongue locking piece; the side of the inclined tongue guide block is provided with a brake boss, and the brake top block abuts and cooperates with the brake boss.

2. A fully automatic lock body with a scissor-type oblique bolt locking structure as claimed in claim 1, characterized in that: The signal tongue assembly comprises a signal tongue and a brake plate push rod; the brake plate push rod is abutted and matched with a push-down block at the lower side of the front end of the brake plate.

3. A fully automatic lock body with a scissor-type oblique bolt locking structure as claimed in claim 1, characterized in that: The handle peach assembly includes a handle peach plate and a handle peach; the handle peach plate is provided with a claw, and the claw abuts against the brake plate, driving the lower push block at the front end of the brake plate to rotate and push the lower push rod of the oblique tongue locking piece, so that the lower locking block disengages from the lower clamping position and the upper locking block disengages from the upper clamping position.

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