A multi-functional intelligent lock body

Abstract

The present invention discloses a multi-purpose intelligent lock body, comprising a front lock cover, a rear lock cover, a side plate, a main lock bolt, a normal lock bolt, an inner lock bolt, a sliding bolt, an intelligent lock dial block, a mechanical lock dial block, an inner lock dial block, and a self-locking piece. It also comprises a lever, a self-locking dial block, a self-locking slide plate, a front dial plate, a rear dial plate, and a slide plate. The self-locking piece is provided with an arc edge on the left side, and the lower left corner is connected to the self-locking tension spring, and the lower right side is provided with a backward bending edge, which is engaged with the forward bending edge at the right end of the self-locking slide plate, and the upper right side is provided with a forward clamping block. The main lock bolt support plate is provided with two saw teeth and a square opening on the right side, and two square openings with oblique edges are provided on the left side, and a push pin is vertically fixed on each of the front and back surfaces of the upper part. When the intelligent lock dial block rotates counterclockwise, its long rectangular block drives the lever to slide upward, so that the push pin pushes the main lock bolt to slide upward, and at the same time, the push pin pushes the slide bolt to slide left and right. The solution solves the problems that in a single unlocking mode, the lock cannot be unlocked in case of lock failure, the inner lock dial block is laborious to rotate, and the lock bolt is often easily stuck inside the lock body.

Description

Technical Field

[0001] The present invention relates to the field of locks, and in particular to a multi-functional intelligent lock body. Background Art

[0002] At present, there are various intelligent lock bodies in the market. For simple intelligent locks, the unlocking method is single. Once the lock fails, it is impossible to unlock, which brings great inconvenience to users and they have to find a locksmith to solve the unlocking problem. For complex intelligent locks on the market, there are too many functions, and some are not practical, resulting in a complex lock body structure and an increase in material costs, so the price of the lock body is relatively high.

[0003] The engaging notch between the ordinary inner lock bolt and the ordinary inner lock dial is located at the tail of the ordinary inner lock bolt, and there is only one long dial on the ordinary inner lock dial. During use, the ordinary inner lock bolt has a large friction inside the lock body, and it is easy to occur that the ordinary inner lock dial is difficult to twist.

[0004] The ordinary constant lock bolt only realizes the closed and open states of the constant lock bolt by pushing the constant lock bolt to slide up and down through the dial. However, in actual application, the tongue is likely to get stuck inside the lock body after retracting into the opening end of the side plate and cannot extend out.

[0005] In view of the above problems, we designed a multi-functional intelligent lock body to solve the problems of inability to unlock in case of lock failure in a single unlocking method and the excessive complexity of the multi-functional lock body. Summary of the Invention

[0006] The purpose of the present invention is to solve the problems of inability to unlock in case of lock failure in a single unlocking method and the excessive complexity of the multi-functional lock body. At the same time, in order to overcome the problem of difficult rotation of the inner lock dial and the problem that the constant lock bolt is easily stuck inside the lock body. The specific solutions are as follows:

[0007] A multi-functional intelligent lock body includes a front lock cover, a rear lock cover, a side plate, a main lock bolt, a constant lock bolt, an inner lock bolt, a sliding bolt, an intelligent lock dial, a mechanical lock dial, an inner lock dial, and a self-locking piece. The main lock bolt is located in the middle of the front lock cover and the rear lock cover, and its tongue is close to the middle opening end of the side plate. The constant lock bolt and the inner lock bolt are respectively located in the right and left parts of the front lock cover and the rear lock cover, and their tongues respectively extend out of the right opening end of the side plate and are close to the left opening end of the side plate. The sliding bolts are respectively horizontally movably connected to the inner sides of the front lock cover and the rear lock cover, and the hooks at their ends are respectively outside the slot holes at the left and right ends. The intelligent lock dial is located between the main lock bolt and the constant lock bolt. The mechanical lock dial is located on the left side of the main lock bolt, the inner lock dial is located on the left side of the inner lock bolt, and the self-locking piece is closely attached to the back of the main lock bolt. A multi-functional intelligent lock body further includes a lever, a self-locking dial, a self-locking sliding piece, a front dial, a rear dial, and a sliding piece.

[0008] The left side of the self-locking plate is provided with an arc-shaped edge protruding to the left, the lower left corner of the self-locking plate is connected to a self-locking tension spring, the lower right side of the self-locking plate is provided with a backward curved edge, which is buckled with the forward curved edge of the right end of the self-locking slide behind the self-locking plate, and the upper right side of the self-locking plate is provided with a forward clamping block. The self-locking block is pressed against the forward curved edge of the right end of the self-locking slide by the self-locking spring. The self-locking slide and the self-locking plate are both provided with a transverse waist-shaped hole with a common sliding axis, which can slide left and right.

[0009] The right side of the support plate of the main lock bolt is provided with two adjacent saw teeth and one adjacent square opening for locking the block of the self-locking plate. The left side of the support plate of the main lock bolt is provided with two square openings with oblique edges for locking the protrusion on the mechanical lock block. A push pin is vertically fixed on the front and back surfaces of the upper part of the support plate of the main lock bolt. A waist-shaped through hole sharing a sliding shaft with the self-locking plate is longitudinally provided in the middle part of the support plate of the main lock bolt. When the mechanical lock block rotates, it can push the arc edge of the self-locking plate to slide rightward and push the support plate of the main lock bolt to slide upward or downward. At the same time, the push pin is movably connected with the oblique waist-shaped through hole in the middle part of the sliding bolt, pushing the sliding bolt to slide left or right, extending out or retracting the slot.

[0010] The lever is divided into a head and a rod body. A protrusion and a recess are provided on one end of the head, and a circular through hole is provided on the other end. The circular through hole is movably connected to the upper right part of the front lock cover and the rear lock cover through a pivot. The tail of the rod body is provided with a waist-shaped through hole movably connected to the push pin. When the smart lock lever block rotates counterclockwise, its long rectangular block moves the lever head to pry the rod body upward, so that the push pin pushes the main lock bolt upward, and its lock tongue completely extends out of the opening end of the side plate; at the same time, the push pin passes through the oblique waist-shaped through hole to make the two sliding bolts slide to the left and right sides respectively and extend out of the slot. When the smart lock push block rotates clockwise, its short rectangular block drives the self-locking push block to rotate counterclockwise, so that the self-locking slide plate and the self-locking plate slide to the right, and the self-locking is instantly released; at the same time, the hook-shaped block of the smart lock push block drives the head of the push rod to pry the rod body downward, so that the push pin pushes the main lock bolt downward to slide, and its lock tongue is completely retracted into the opening end of the side panel; at the same time, the push pin passes through the oblique waist-shaped through hole to make the two slide bolts slide to the left and right respectively, and retract into the slot.

[0011] The front paddle located in front of the smart lock paddle block has a protruding end that is transversely inserted into the lower front part of the normal lock bolt, and also has an oblique protruding end that is close to the right end of the slide. The rear paddle located behind the smart lock paddle block has a protruding end that is transversely inserted into the lower rear part of the normal lock bolt. The left end of the slide is connected to the tension spring arranged at the upper left corner of the main lock bolt support plate, and the left end protruding part of the slide is close to the mechanical lock paddle block. Two long through holes are arranged transversely in the middle of the slide and are movably connected to the middle and upper part of the main lock bolt support plate.

[0012] The inner lock block is provided with a long block and two pointed protrusions on both sides, one of which serves as an auxiliary block and the other serves as a limiter. The recessed portion of the lever rests on the sliding shaft at one end of the slide bolt when unlocking, limiting the rightward travel of the lever. A block and a spring are also provided on the right side of the normally locked bolt. A movable shaft is provided at the rear end of the block and a guide shaft is provided in the middle. The spring presses the head of the block against the right side of the normally locked bolt to limit the travel of the normally locked bolt back into the side panel. When the mechanical lock block rotates, it drives the slide plate to slide to the right, pushing the front paddle and the rear paddle to rotate clockwise, so that the normally locked bolt is retracted into the side panel. A fan-shaped groove is provided in the middle of the front paddle and the rear paddle, so that the small protrusions at the front and rear ends of the smart lock paddle block near the axis are located in the fan-shaped groove. Only by rotating the smart lock paddle block clockwise can the front paddle and the rear paddle be driven to rotate. When the smart lock paddle block is rotated counterclockwise, the front paddle and the rear paddle do not move.

[0013] It can be seen from the above structural description that this solution has two unlocking and locking modes.

[0014] The working process of the first smart lock method is as follows:

[0015] (1) When the smart lock block rotates counterclockwise, its long rectangular block pushes the protrusion of the lever to the left, and uses the lever principle to pry the waist-shaped through hole at the end of the rod body, driving the push pin and the main lock bolt to slide upward, and its tongue extends out of the open end of the side plate. At the same time, the push pin drives the oblique waist-shaped through hole in the middle of the sliding bolt, so that the sliding bolt extends out of the slot to the left and right ends respectively, realizing the locked state of the lock body.

[0016] (2) When the smart lock dial block rotates clockwise, its short rectangular block drives the self-locking dial block to rotate counterclockwise, pushing the self-locking slide to slide to the right, and instantly releasing the self-locking; at the same time, the hook-shaped block on the smart lock dial block drives the protrusion of the lever to the right, and uses the lever principle to pry the waist-shaped through hole at the tail of the rod body, driving the push pin and the main lock bolt to slide downward, and its tongue retracts to the open end of the side panel. At the same time, the push pin drives the oblique waist-shaped through hole in the middle of the slide bolt, causing the slide bolt to slide to the left and right respectively and retract into the slot hole; at the same time, the small protrusion on the smart lock dial block drives the fan-shaped groove to make the front and rear paddles rotate clockwise, driving the normal lock bolt to slide downward, and realizing the unlocked state of the lock body.

[0017] The working process of the second mechanical lock method is as follows:

[0018] (1) When the mechanical lock block rotates counterclockwise, its protrusion moves the arc edge of the self-locking plate to make it slide to the right, instantly releasing the self-locking; at the same time, the protrusion moves the two square openings with beveled edges on the left side of the main lock bolt support plate, pushing the push pin upward and the main lock bolt upward, with its tongue extending out of the opening end of the side plate, and at the same time, the push pin drives the oblique waist-shaped through hole in the middle of the sliding bolt, making the sliding bolt extend out of the slot to the left and right ends respectively, thus realizing the locked state of the lock body.

[0019] (2) When the mechanical lock push block rotates clockwise, its protrusion pushes the arc-shaped edge of the self-locking plate to make the self-locking plate slide to the right, and the self-locking is released instantly; at the same time, the protrusion pushes the two square openings with beveled edges on the left side of the main lock bolt support plate, pushing the push pin downward and the main lock bolt to slide downward, and its tongue retracts into the opening end of the side plate. At the same time, the push pin drives the oblique waist-shaped through hole in the middle of the sliding bolt, causing the sliding bolt to slide to the left and right respectively and retract into the slot hole; at the same time, the protrusion pushes the protruding part of the sliding plate to slide to the right, pushing the front paddle to rotate clockwise, driving the normal lock bolt to slide downward, and realizing the unlocked state of the lock body.

[0020] The improvements to the common inner lock bolt and the common lock bolt are as follows:

[0021] The engaging notch between the ordinary inner lock bolt and the ordinary inner lock dial block is located at the tail end of the ordinary inner lock bolt, and the ordinary inner lock dial block has only one long dial block. During use, the ordinary inner lock bolt has greater friction inside the lock body, and it is easy for the ordinary inner lock dial block to be twisted with difficulty. The present invention adds two pointed protrusions on both sides of the long dial block of the inner lock dial block, and provides matching grooves at the corresponding positions of the inner lock bolt. The upper pointed protrusions serve to assist in pushing the inner lock bolt, increase the pushing force and the fulcrum, reduce the torsional force of the inner lock dial block, and make it easy for the inner lock bolt to enter and exit the lock body.

[0022] The ordinary lock bolt only realizes the closed and open states of the normally locked bolt by pushing the normally locked bolt up and down through the push block. However, in actual applications, the structure is prone to the problem that the tongue is retracted into the opening end of the side plate and stuck inside the lock body and cannot be extended. The present invention has made improvements on this problem. A block and a spring are added to the right side of the normally locked bolt. The head of the block is pressed against the right side of the normally locked bolt by the spring. When the normally locked bolt is retracted into the side plate, the head of the block presses against the lower end of the tongue, limiting the retraction stroke of the normally locked bolt and avoiding the problem of the tongue being stuck inside the lock body.

[0023] In summary, the technical solution of the present invention has the following beneficial effects:

[0024] The problem that the lock cannot be unlocked in case of a single unlocking method failure and the multifunctional lock body is too complicated is solved. The structural design of this solution is reasonable. The smart lock and the mechanical lock jointly control the main lock bolt and the normal lock bolt, and share the self-locking plate, front and rear paddles, push pins and sliding bolts. The inner lock block and the normal lock bolt limit of the ordinary lock body are improved, which overcomes the problem that the inner lock block is laborious to rotate and the normal lock bolt is easy to get stuck inside the lock body. It has good practicality and high safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments of the present invention. Obviously, the drawings described below are only part of the embodiments of the present invention, and those skilled in the art can obtain other drawings based on these drawings without creative labor.

[0026] Figure 1 This is a front view of a multi-purpose intelligent lock body of the present invention;

[0027] Figure 2 This is a front view of a multi-purpose intelligent lock body of the present invention with the front lock cover removed;

[0028] Figure 3 This is a front view of a multi-purpose intelligent lock body of the present invention without a front lock cover and a front paddle;

[0029] Figure 4 This is a rear view of a multi-purpose intelligent lock body of the present invention with the rear lock cover removed;

[0030] Figure 5 This is a rear view of a multi-purpose intelligent lock body of the present invention after removing the rear lock cover and the rear sliding bolt;

[0031] Figure 6 This is a block structure diagram of a multi-purpose intelligent lock body of the present invention. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0033] For easier understanding of the content of the present invention, the following definitions are made: Taking the observer as a reference, when the observer faces the front view, the front in the content refers to the part closer to the observer in the figure, the back in the content refers to the part farther from the observer in the figure, the left in the content refers to the part on the left side of the observer in the figure, the right in the content refers to the part on the right side of the observer in the figure, the upper in the content refers to the part above the observer in the figure, and the lower in the content refers to the part below the observer in the figure.

[0034] As Figures 1 to 6 shown, a multifunctional intelligent lock body includes a front lock cover 1, a rear lock cover 2, side plates 3, a main lock bolt 4, a constant lock bolt 5, an inner lock bolt 6, a sliding bolt 7, an intelligent lock dial block 8, a mechanical lock dial block 9, an inner lock dial block 10, and a self-locking piece 11. The main lock bolt 4 is located in the middle inside the front lock cover 1 and the rear lock cover 2, and its tongue is close to the middle opening end of the side plate 3. The constant lock bolt 5 and the inner lock bolt 6 are respectively located in the right and left parts inside the front lock cover 1 and the rear lock cover 2, and their tongues respectively extend out of the right opening end of the side plate 3 and are close to the left opening end of the side plate 3. The sliding bolt 7 is respectively horizontally movably connected to the inner sides of the front lock cover 1 and the rear lock cover 2, and the hooks 12 at its ends are respectively outside the slot holes 13 at the left and right ends. The intelligent lock dial block 8 is located between the main lock bolt 4 and the constant lock bolt 5. The mechanical lock dial block 9 is located on the left side of the main lock bolt 4, the inner lock dial block 10 is located on the left side of the inner lock bolt 6, and the self-locking piece 11 is closely attached to the back of the main lock bolt 4. It also includes a lever 14, a self-locking dial block 15, a self-locking sliding piece 16, a front dial piece 17, a rear dial piece 18, and a sliding piece 19.

[0035] The left side of the self-locking piece 11 is provided with an arc-shaped edge 20 protruding to the left. The lower left corner of the self-locking piece 11 is connected to a self-locking tension spring 21. The lower right side of the self-locking piece 11 is provided with a backward bending edge, which is buckled with the forward bending edge at the right end of the self-locking sliding piece 16 located behind the self-locking piece 11. The upper right side of the self-locking piece 11 is provided with a forward clamping block 22. The self-locking dial block 15 is pressed against the forward bending edge at the right end of the self-locking sliding piece 16 through a self-locking spring 23. Both the self-locking sliding piece 16 and the self-locking piece 11 are provided with horizontally oblong holes 24 sharing a common sliding shaft, and can slide left and right.

[0036] On the right side of the support plate 25 of the main locking bolt 4, there are two adjacent sawteeth and an adjacent square opening for locking the locking block 22 of the self-locking piece 11. On the left side of the support plate 25 of the main locking bolt 4, there are two square openings with beveled edges for clamping the protrusion 26 on the mechanical lock toggle 9. On the front and back surfaces of the upper part of the support plate 25 of the main locking bolt 4, a push pin 27 is vertically fixed respectively. In the middle of the support plate 25 of the main locking bolt 4, there is a waist-shaped through hole that shares a sliding shaft with the self-locking piece 11. When the mechanical lock toggle 9 rotates, it can push the arc-shaped edge 20 of the self-locking piece 11 to slide to the right and push the support plate 25 of the main locking bolt 4 to slide up or down. At the same time, the push pins 27 are respectively movably connected with the oblique waist-shaped through holes 28 in the middle of the sliding bolts 7, pushing the sliding bolts 7 to slide left and right, extending or retracting from the slot holes 13.

[0037] The toggle lever 14 is divided into a head and a rod body 30. At one end of the head, there is a protrusion 31 and a recess 32. At the other end, there is a circular through hole, which is movably connected to the upper right part inside the front lock cover 1 and the rear lock cover 2 through a pivot 33. At the tail of the rod body 30, there is a waist-shaped through hole that is movably connected with the push pin 27. When the intelligent lock toggle 8 rotates counterclockwise, its long rectangular block 34 toggles the head of the toggle lever 14 to pry the rod body 30 to slide upward, so that the push pin 27 pushes the main locking bolt 4 upward to slide, and its locking tongue completely extends outside the opening end of the side plate 3; at the same time, the push pin 27 makes the two sliding bolts 7 slide to the left and right respectively through the oblique waist-shaped through holes 28, extending outside the slot holes 13. When the intelligent lock toggle 8 rotates clockwise, its short rectangular block 35 toggles the self-locking toggle 15 to rotate counterclockwise, so that the self-locking slide piece 16 and the self-locking piece 11 slide to the right, and the self-locking is instantly released; at the same time, the hook-shaped block 36 of the intelligent lock toggle 8 toggles the head of the toggle lever 14 to pry the rod body 30 to slide downward, so that the push pin 27 pushes the main locking bolt 4 downward to slide, and its locking tongue completely retracts inside the opening end of the side plate 3; at the same time, the push pin 27 makes the two sliding bolts 7 slide to the left and right respectively through the oblique waist-shaped through holes 28, retracting into the slot holes 13.

[0038] The front toggle 17 located in front of the intelligent lock toggle 8 is provided with a protruding end that is horizontal and inserted into the lower front part of the constant locking bolt 5, and is also provided with an oblique protruding end that abuts against the right end of the sliding piece 19. The rear toggle 18 located behind the intelligent lock toggle 8 is provided with a protruding end that is horizontal and inserted into the lower rear part of the constant locking bolt 5. The left end of the sliding piece 19 is connected to a tension spring 37 arranged at the upper left corner of the support plate 25 of the main locking bolt 4, and the protruding part at the left end of the sliding piece 19 is close to the mechanical lock toggle 9. Two long through holes are horizontally arranged in the middle of the sliding piece 19 and are movably connected to the upper middle part of the support plate 25 of the main locking bolt 4.

[0039] The inner lock release block 10 is provided with a long release block 38 and two pointed protrusion blocks 39 on both sides. One of the pointed protrusion blocks 39 serves as an auxiliary toggle function, and the other serves as a limit function. The concave part of the release lever 14 leans against the sliding shaft at one end of the sliding bolt 7 when unlocking, limiting the rightward travel of the release lever 14. A stop block 40 and a spring 41 are also provided on the right side of the constant locking bolt 5. The tail end of the stop block 40 is provided with a movable shaft 42, and the middle part is provided with a guide shaft 43. The head of the stop block 40 is pressed against the right side of the constant locking bolt 5 by the spring 41, limiting the retraction travel of the constant locking bolt 5 into the side plate 3. When the mechanical lock release block 9 rotates, it drives the sliding piece 19 to slide to the right, pushing the front release piece 17 and the rear release piece 18 to rotate clockwise, so that the constant locking bolt 5 retracts into the side plate 3. Sector-shaped grooves 44 are provided in the middle parts of the front release piece 17 and the rear release piece 18, so that the small protrusion blocks 45 at the shaft positions on the front and rear surfaces of the intelligent lock release block 8 are located in the sector-shaped grooves 44. Only by rotating the intelligent lock release block 8 clockwise can the front release piece 17 and the rear release piece 18 be driven to rotate. When the intelligent lock release block 8 rotates counterclockwise, the front release piece 17 and the rear release piece 18 do not move.

[0040] It can be seen from the above structural description that this solution has two ways of unlocking and locking.

[0041] The working process of the first intelligent lock mode is as follows:

[0042] (1) When the intelligent lock release block 8 rotates counterclockwise, its long rectangular block 34 toggles the protrusion 31 of the release lever 14 to the left. Using the lever principle, it pries the waist-shaped through hole at the tail of the lever body 30, driving the push pin 27 and the main locking bolt 4 to slide upward. Its tongue extends out of the open end of the side plate 3. At the same time, the push pin 27 drives the oblique waist-shaped through hole 28 in the middle of the sliding bolt 7, so that the sliding bolt 7 extends out of the slot holes 13 to the left and right ends respectively. The locked state of the lock body is achieved.

[0043] (2) When the intelligent lock release block 8 rotates clockwise, its short rectangular block 35 toggles the self-locking release block 15 to rotate counterclockwise, pushing the self-locking sliding piece 16 to slide to the right, and the self-locking is released instantly. At the same time, the hook-shaped block 36 on the intelligent lock release block 8 toggles the protrusion 31 of the release lever 14 to the right. Using the lever principle, it pries the waist-shaped through hole at the tail of the lever body 30, driving the push pin 27 and the main locking bolt 4 to slide downward. Its tongue retracts into the open end of the side plate 3. At the same time, the push pin 27 drives the oblique waist-shaped through hole 28 in the middle of the sliding bolt 7, so that the sliding bolt 7 slides to the left and right and retracts into the slot holes 13 respectively. At the same time, the small protrusion block 45 on the intelligent lock release block 8 drives the sector-shaped groove 44 to make the front release piece 17 and the rear release piece 18 rotate clockwise, driving the constant locking bolt 5 to slide downward, realizing the unlocking state of the lock body.

[0044] The working process of the second mechanical lock mode is as follows:

[0045] (1) When the mechanical lock block 9 rotates counterclockwise, its protrusion 26 moves the arc-shaped edge 20 of the self-locking plate 11 to slide the self-locking plate 11 to the right, and the self-locking is released instantly; at the same time, the protrusion 26 moves the two square openings with beveled edges on the left side of the supporting plate 25 of the main lock bolt 4, pushing the push pin 27 upward and the main lock bolt 4 slides upward, and its tongue extends out of the opening end of the side plate 3. At the same time, the push pin 27 drives the oblique waist-shaped through hole 28 in the middle of the sliding bolt 7, so that the sliding bolt 7 extends out of the slot 13 to the left and right ends respectively, realizing the locked state of the lock body.

[0046] (2) When the mechanical lock shift block 9 rotates clockwise, its protrusion 26 shifts the arc-shaped edge 20 of the self-locking plate 11 to make the self-locking plate 11 slide to the right, and the self-locking is released instantly; at the same time, the protrusion 26 shifts the two square openings with beveled edges on the left side of the support plate 25 of the main lock bolt 4, pushes the push pin 27 downward, and the main lock bolt 4 slides downward, and its tongue retracts to the open end of the side plate 3. At the same time, the push pin 27 drives the oblique waist-shaped through hole 28 in the middle of the sliding bolt 7, so that the sliding bolt 7 slides to the left and right respectively and retracts into the slot 13; at the same time, the protrusion 26 shifts the protruding part of the sliding plate 19 to slide to the right, pushes the front shift plate 17 to rotate clockwise, and drives the normal lock bolt 5 to slide downward, so that the lock body is unlocked.

[0047] The improvements to the common inner lock bolt and the common lock bolt are as follows:

[0048] The engagement notch between the ordinary inner lock bolt and the ordinary inner lock dial block is located at the tail end of the ordinary inner lock bolt, and the ordinary inner lock dial block has only one long dial block. During use, the ordinary inner lock bolt has greater friction inside the lock body, and it is easy for the ordinary inner lock dial block to be twisted with difficulty. The present solution adds two pointed protrusions 39 on both sides of the long dial block 38 of the inner lock dial block 10, and provides matching grooves at the corresponding positions of the inner lock bolt 6. The upper pointed protrusion 39 plays a role in assisting in pushing the inner lock bolt 6, increasing the pushing force and the fulcrum, thereby reducing the torsional force of the inner lock dial block 10 and making it easier for the inner lock bolt 6 to enter and exit the lock body.

[0049] The ordinary lock bolt only realizes the closed and open states of the normally locked bolt by pushing the normally locked bolt up and down through the shift block. However, in actual applications, the structure is prone to the problem that the tongue is retracted into the opening end of the side plate and stuck inside the lock body and cannot be extended. The present invention has made improvements on this. A block 40 and a spring 41 are added to the right side of the normally locked bolt 5. The head of the block 40 is pressed against the right side of the normally locked bolt 5 by the spring 41. When the normally locked bolt 5 is retracted into the side plate 3, the head of the block 40 abuts against the lower end of the tongue, limiting the retraction stroke of the normally locked bolt 5 and avoiding the problem of the tongue being stuck inside the lock body.

[0050] In summary, the technical solution of the present invention has the following beneficial effects:

[0051] It solves the problems that in a single unlocking method, it is impossible to unlock in case the lock fails, and that the multi-functional lock body is too complex. The structural design of this solution is reasonable. The intelligent lock and the mechanical lock jointly control the main lock bolt and the constant lock bolt, and share the self-locking piece, the front shifting piece, the rear shifting piece, the push pin and the sliding bolt. And improvements are made to the inner lock shifting block and the limit of the constant lock bolt of the ordinary lock body, overcoming the problems that it is laborious to rotate the inner lock shifting block and that the constant lock bolt is easily stuck inside the lock body. It has good practicability and high safety.

[0052] The above-described embodiments do not constitute a limitation on the protection scope of the technical solution. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the above embodiments shall be included in the protection scope of the technical solution.

Claims

1. A multi-functional intelligent lock body, comprising a front lock cover, a rear lock cover, side plates, a main lock bolt, a constant lock bolt, an inner lock bolt, a sliding bolt, an intelligent lock dial block, a mechanical lock dial block, an inner lock dial block, and a self-locking piece; the main lock bolt is located in the middle inside the front lock cover and the rear lock cover, and its tongue is close to the middle opening end of the side plate; the constant lock bolt and the inner lock bolt are respectively located in the right and left parts inside the front lock cover and the rear lock cover, and their tongues respectively extend out of the right opening end of the side plate and are close to the left opening end of the side plate; the sliding bolt is respectively horizontally movably connected and abuts against the inner sides of the front lock cover and the rear lock cover, and the hooks at its ends are respectively outside the slot holes at the left and right ends; the intelligent lock dial block is located between the main lock bolt and the constant lock bolt; the mechanical lock dial block is located on the left side of the main lock bolt; the inner lock dial block is located on the left side of the inner lock bolt; the self-locking piece closely adheres to the back of the main lock bolt; and it is characterized in that: It also includes a lever, a self-locking paddle block, a self-locking slide, a front paddle, a rear paddle, and a slide; The left side of the self-locking plate is provided with an arc-shaped edge protruding to the left, the lower left corner of the self-locking plate is connected to a self-locking tension spring, the lower right side of the self-locking plate is provided with a backward bent edge, which is buckled with the forward bent edge of the right end of the self-locking slide behind the self-locking plate, and the upper right side of the self-locking plate is provided with a forward clamping block; the self-locking block is pressed against the forward bent edge of the right end of the self-locking slide by the self-locking spring; the self-locking slide and the self-locking plate are both provided with a transverse waist-shaped hole with a common sliding axis, which can slide left and right; The right side of the support plate of the main lock bolt is provided with two adjacent saw teeth and one adjacent square opening for locking the block of the self-locking plate; the left side of the support plate of the main lock bolt is provided with two square openings with oblique edges for locking the protrusion on the mechanical lock dial block; a push pin is vertically fixed on the front and back surfaces of the upper part of the support plate of the main lock bolt, and a waist-shaped through hole sharing a sliding shaft with the self-locking plate is longitudinally provided in the middle part of the support plate of the main lock bolt; when the mechanical lock dial block rotates, it can push the arc edge of the self-locking plate to slide to the right and push the support plate of the main lock bolt to slide upward or downward; at the same time, the push pin is movably connected with the oblique waist-shaped through hole in the middle part of the sliding bolt, respectively, to push the sliding bolt to slide left or right, and extend or retract the slot; The lever is divided into a head and a rod body. A protrusion and a recess are provided on one end of the head, and a circular through hole is provided on the other end. The circular through hole is movably connected to the front lock cover and the upper right part of the rear lock cover through a pivot. The tail of the rod body is provided with a waist-shaped through hole movably connected to the push pin. When the smart lock dial block rotates counterclockwise, its long rectangular block moves the lever head to pry the rod body upward to slide, so that the push pin pushes the main lock bolt upward to slide, and the lock tongue completely extends out of the opening end of the side plate. At the same time, the push pin passes through the oblique waist-shaped through hole so that The two sliding bolts slide to the left and right sides respectively and extend out of the slot; when the smart lock dial block rotates clockwise, its short rectangular block drives the self-locking dial block to rotate counterclockwise, so that the self-locking slide plate and the self-locking plate slide to the right, and the self-locking is instantly released; at the same time, the hook-shaped block of the smart lock dial block drives the head of the dial rod to pry the rod body downward, so that the push pin pushes the main lock bolt downward to slide, and its lock tongue is completely retracted into the opening end of the side plate; at the same time, the push pin passes through the oblique waist-shaped through hole to make the two sliding bolts slide to the left and right respectively and retract into the slot; The front paddle located in front of the smart lock dial block is provided with a protruding end which is transversely inserted into the lower front part of the normal lock bolt, and is also provided with an oblique protruding end which is close to the right end of the slide; the rear paddle located behind the smart lock dial block is provided with a protruding end which is transversely inserted into the lower rear part of the normal lock bolt; the left end of the slide is connected to the tension spring arranged at the upper left corner of the main lock bolt support plate, and the left end protruding part of the slide is close to the mechanical lock dial block, and two long through holes are transversely provided in the middle part of the slide to be movably connected to the middle and upper part of the main lock bolt support plate; On the inner lock shifting block, there is a long shifting block and two pointed protrusion blocks on both sides. One of the pointed protrusion blocks plays an auxiliary shifting role, and the other plays a limiting role; When unlocking, the concave part of the shifting rod leans on the sliding shaft at one end of the sliding bolt, limiting the rightward travel of the shifting rod; On the right side of the constant lock bolt, there are also a stop block and a spring. The tail end of the stop block is provided with a movable shaft, and the middle part is provided with a guide shaft. The head of the stop block is pressed against the right side of the constant lock bolt by the spring, limiting the travel of the constant lock bolt retracting into the side plate.

2. The multi-functional intelligent lock body according to claim 1, characterized in that: When the mechanical lock shifting block rotates, it drives the sliding piece to slide to the right, pushing the front shifting piece and the rear shifting piece to rotate clockwise, so that the constant lock bolt retracts into the inside of the side plate.

3. The multi-functional intelligent lock body according to any one of claims 1 to 2, characterized in that: The middle parts of the front shifting piece and the rear shifting piece are provided with fan-shaped grooves, so that the small protrusion blocks at the shaft-relying positions on the front and rear surfaces of the intelligent lock shifting block are located in the fan-shaped grooves. Only by rotating the intelligent lock shifting block clockwise can it drive the front shifting piece and the rear shifting piece to rotate. When the intelligent lock shifting block rotates counterclockwise, the front shifting piece and the rear shifting piece do not move.

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