CN213627047U

CN213627047U - Door lock body

Info

Publication number: CN213627047U
Application number: CN202021249898.3U
Authority: CN
Inventors: 何伟铨; 魏继盛
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-06-30
Filing date: 2020-06-30
Publication date: 2021-07-06
Anticipated expiration: 2030-06-30

Abstract

The utility model discloses a door lock body, including lock body, spring bolt, butt piece, transmission head, driven tooth, drive block, square pole head, initiative tooth, locking portion, locking position, back lock push pedal, back lock knob, door closure and drive arrangement. When the door needs to be opened, the square rod head is driven to rotate through the handle, the driving teeth on the square rod head drive the driven teeth on the transmission head to move, and therefore the transmission head rotates to drive the abutting block to move backwards, and the lock tongue is received into the lock body. When the user needs the back locking, rotatory back locking knob, the back locking knob is an eccentric knob to promote the back locking push pedal and remove the locking position that makes in the back locking push pedal and the first locking part block of transmission, and then the rotation of restriction square pole head plays the back locking effect, and for prior art, this scheme structure is more simple, and the part still less, and production and installation are more convenient.

Description

Door lock body

Technical Field

The utility model relates to a tool to lock field, especially a door lock body.

Background

The lock body is an important part of the door and plays a role in locking the door, the existing lock body has a plurality of structural parts, and the handle drives the bolt to open and close and controls the lock body to reversely lock, so that the structure is complex, and the cost is high.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, an object of the utility model is to provide a simple structure's lock body.

The utility model discloses a technical scheme that the solution problem adopted is: a door lock body, comprising:

the lock body is internally provided with an installation cavity, the end part of the lock body is provided with a lock tongue capable of being retracted into the lock body or extending out of the lock body, the tail end of the lock tongue is positioned in the installation cavity, and the tail end of the lock tongue is provided with a butting block;

the transmission head is pivoted in the mounting cavity, driven teeth are arranged on the transmission head, and a driving block capable of being abutted against the abutting block is arranged on the transmission head;

the square rod head is pivoted in the mounting cavity, a first mounting hole used for being connected with a handle is formed in the square rod head, a driving tooth meshed with a driven tooth is arranged on the square rod head, a stop part is arranged on the square rod head, and a first reset device is arranged on the square rod head;

the back locking push plate is arranged in the installation cavity and can horizontally move along the installation cavity, a stop position which can be clamped with the stop part is arranged at the front end of the back locking push plate, and a second reset device is arranged on the back locking push plate;

the anti-locking knob is pivoted in the mounting cavity, the anti-locking knob is an eccentric knob, a second mounting hole used for being connected with the lock rod is formed in the middle of the anti-locking knob, and the surface of the anti-locking knob is abutted against the anti-locking push plate and can drive the anti-locking push plate to move;

the door cover is provided with a lock groove for clamping the lock tongue, the door cover is used for being installed on a door frame, and a driving device for driving the lock tongue to extend out of the lock body is arranged in the door cover or the lock body.

As a further improvement of the technical scheme, the driven teeth are arranged at the lower end of the transmission head, and the driving block is arranged at the upper end of the transmission head.

As a further improvement of the above technical solution, the stop portion is a stop surface provided at the bottom of the square club head, the stop position is a front end surface of the back lock push plate, and the front end surface of the back lock push plate can abut against the stop surface.

As a further improvement of the technical scheme, a through hole is formed in the middle of the back locking push plate, the bottom of the transmission head penetrates through the through hole and is pivoted on the inner wall of the mounting cavity, and the driven teeth are located above the back locking push plate.

As a further improvement of the above technical solution, a guide groove is provided on one side of the through hole, a reset plate located in the guide groove is provided on the inner wall of the mounting cavity, and the second reset device is a reset spring provided between the reset plate and the tail end of the guide groove.

As a further improvement of the above technical solution, the guide groove is located at the rear side of the through hole, the top of the guide groove is provided with a cover plate, the rear end of the back lock push plate is provided with a vertical plate connected with the rear edge of the cover plate, the rear end face of the vertical plate is flush with the rear end face of the back lock push plate, and the vertical plate abuts against the surface of the back lock knob.

As a further improvement of the technical scheme, two extension rods are arranged on two sides of the tail end of the lock tongue, the abutting block is arranged at the tail end of each extension rod, and the counter lock push plate and the counter lock knob are arranged between the two extension rods.

As a further improvement of the above technical solution, the square bar head is disposed at the end of the installation cavity, and the first resetting device includes:

the fixed rod is arranged on the rear side of the square rod head;

the clamping plate is arranged on the side wall at the tail end of the mounting cavity;

the torsion spring is arranged on the fixed rod, and the support legs of the torsion spring are clamped on the clamping plate.

As a further improvement of the technical scheme, the driving teeth are arranged on the front side of the square rod head, and the driven teeth are arranged on the rear side of the transmission head.

As a further improvement of the above technical solution, the driving device is a magnet which is disposed in the lock groove and can adsorb the lock tongue.

The utility model has the advantages that: when in installation, the lock body is arranged inside the door, the door cover is arranged on the door frame, the lock cylinder and the handle are well installed, under normal conditions, when the door is closed, the lock tongue extends out of the lock body and is clamped into the lock groove to play a role in locking the door, when the door needs to be opened, the square rod head is driven to rotate by the handle, the driving tooth on the square rod head drives the driven tooth on the transmission head to move so as to drive the transmission head to rotate, thereby causing the driving block on the transmission head to generate horizontal displacement, the driving block is abutted against the abutting block in the motion process and drives the abutting block to move backwards, thereby overcoming the force of the driving device, leading the lock tongue to be collected in the lock body to achieve the purpose of opening the door, when a user releases the handle, the first resetting device drives the square rod head to reset, thereby drive the transmission head and reset, make the butt piece no longer receive the restriction of drive block, and then make the spring bolt can stretch out the lock body under drive arrangement's effect again. When the user needs the counter lock, rotatory counter lock knob, because the counter lock knob is an eccentric wheel, therefore it can promote the counter lock push pedal and remove at rotatory in-process, and then make the locking position on the counter lock push pedal with the overhead detent card of square bar, and then restrict the square bar head and rotate, thereby can't withdraw the spring bolt and play the counter lock effect, when removing the counter lock, rotatory counter lock knob makes the counter lock knob reset, thereby the counter lock push pedal resets under second resetting means's effect no longer restricts the rotation of square bar head. Compared with the prior art, the structure of the scheme is simpler, the number of parts is less, and the production and the installation are more convenient.

Drawings

The invention will be further explained with reference to the drawings and the detailed description.

FIG. 1 is a schematic structural diagram of a preferred embodiment of the present invention;

FIG. 2 is a schematic view of the internal structure of the preferred embodiment of the present invention;

FIG. 3 is a schematic structural view of a square head according to a preferred embodiment of the present invention;

fig. 4 is a schematic structural view of a back locking push plate in a preferred embodiment of the present invention.

Detailed Description

This section will describe in detail the embodiments of the present invention, preferred embodiments of the present invention are shown in the attached drawings, which are used to supplement the description of the text part of the specification with figures, so that one can intuitively and vividly understand each technical feature and the whole technical solution of the present invention, but they cannot be understood as the limitation of the protection scope of the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, a plurality of means are one or more, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the number, and the terms greater than, less than, within, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.

Referring to fig. 1 to 4, a door lock body includes:

the lock comprises a lock body 10, wherein a mounting cavity 11 is arranged in the lock body 10, a bolt 20 which can be put into the lock body 10 or extend out of the lock body 10 is arranged at the end part of the lock body 10, the tail end of the bolt 20 is positioned in the mounting cavity 11, and a butt joint block 22 is arranged at the tail end of the bolt 20;

the transmission head 40 is pivoted in the installation cavity 11, driven teeth 41 are arranged on the transmission head 40, and a driving block 42 capable of being abutted against the abutting block 22 is arranged on the transmission head 40;

the square rod head 30 is pivoted in the mounting cavity 11, a first mounting hole 34 used for being connected with a handle is formed in the square rod head 30, a driving tooth 31 meshed with a driven tooth 41 is formed in the square rod head 30, a stopping part is formed in the square rod head 30, and a first resetting device is arranged on the square rod head 30;

the locking device comprises a back locking push plate 50, wherein the back locking push plate 50 is arranged in the installation cavity 11 and can horizontally move along the installation cavity 11, a locking position which can be clamped with a locking part is arranged at the front end of the back locking push plate 50, and a second resetting device is arranged on the back locking push plate 50;

the counter locking knob 60 is pivoted in the mounting cavity 11, the counter locking knob 60 is an eccentric knob, a second mounting hole 61 used for being connected with a lock rod is formed in the middle of the counter locking knob 60, and the surface of the counter locking knob 60 is abutted against the counter locking push plate 50 and can drive the counter locking push plate 50 to move;

the door cover 70 is provided with a locking groove 71 for the locking bolt 20 to be clamped, the door cover 70 is used for being installed on a door frame, and a driving device for driving the locking bolt 20 to extend out of the lock body 10 is arranged in the door cover 70 or the lock body 10.

When in installation, the lock body 10 is arranged inside a door, the door cover 70 is arranged on a door frame, the lock cylinder and the handle are well installed, and under the normal condition, when the door is closed, the bolt 20 extends out of the lock body 10 and is clamped in the lock groove 71 to play a role of locking the door, when the door needs to be opened, the square rod head 30 is driven to rotate through the handle, the driving tooth 31 on the square rod head 30 drives the driven tooth 41 on the transmission head 40 to move, so that the transmission head 40 is driven to rotate, thereby causing the driving block 42 on the transmission head 40 to generate horizontal displacement, and the driving block 42 is abutted against the abutting block 22 in the process of moving and drives the abutting block 22 to move backwards, thereby overcoming the force of the driving device, leading the bolt 20 to be collected into the lock body 10 to achieve the purpose of opening the door, when the user releases the handle, the first resetting device drives the square rod head 30 to reset, thereby driving drive head 40 to reset, so that abutment block 22 is no longer limited by drive block 42, and bolt 20 can be extended out of lock body 10 again under the action of the drive device. When a user needs to perform counter locking, the counter locking knob 60 is rotated, and the counter locking knob 60 is an eccentric wheel, so that the counter locking push plate 50 can be pushed to move in the rotating process, the stop position on the counter locking push plate 50 is clamped with the stop part on the square rod head 30, the rotation of the square rod head 30 is limited, the lock tongue 20 cannot be withdrawn to perform counter locking, when the counter locking is released, the counter locking knob 60 is rotated to reset the counter locking knob 60, and the counter locking push plate 50 is reset under the action of the second reset device, so that the rotation of the square rod head 30 is not limited. Compared with the prior art, the structure of the scheme is simpler, the number of parts is less, and the production and the installation are more convenient.

Further improved and optimized structure, the driven teeth 41 are preferably arranged at the lower end of the transmission head 40, and the driving block 42 is arranged at the upper end of the transmission head 40.

In the above embodiment, it is preferable that the stopper is a stopper surface 33 provided at the bottom of the square head 30, the stopper position is a front end surface of the back lock blade 50, the front end surface of the back lock blade 50 is capable of abutting against the stopper surface 33, and the rotation of the square head 30 is effectively restricted by the face-to-face abutment of the back lock blade 50. The stop portion may also be a wedge-shaped groove disposed on the square rod head 30, and the stop portion may be a wedge-shaped tip that can be inserted into the wedge-shaped groove. Other embodiments of the stopper and the stopper position are possible, and any other embodiment may be used as long as the engagement between the stopper and the stopper position is achieved to restrict the rotation of the club head 30.

Further, considering that the smaller the size of the lock body 10 is, the better, it is preferable that the middle of the counter lock push plate 50 is provided with a through hole 51, the bottom of the transmission head 40 is pivoted on the inner wall of the installation cavity 11 through the through hole 51, and the driven tooth 41 is located above the counter lock push plate 50, so as to overlap the counter lock push plate 50 and a part of the structure of the transmission head 40 in the plane direction, thereby reducing the size of the lock body 10.

Further, in consideration of restricting the moving direction and the returning of the back lock push plate 50, it is preferable that a guide groove 52 is formed at one side of the through hole 51, a returning plate 13 is disposed in the guide groove 52 on the inner wall of the installation cavity 11, and the second returning means is a returning spring disposed between the returning plate 13 and the end of the guide groove 52. Through the cooperation of returning the board 13 and guide way 52 to effectively playing the restriction effect to the moving direction and the distance of back lock push pedal 50, and set up reset spring in returning the board 13 and the guide way 52, thereby effectual space of having utilized, make the size of lock body 10 can further reduce, other embodiments such as elastic rubber post also can be for the second resetting means.

In a further improvement, in view of preventing the reset spring from jumping out to cause reset failure and enabling the counter lock knob 60 to better push the counter lock push plate 50 to move, it is preferable that the guide groove 52 is located at the rear side of the through hole 51, a cover plate 53 is arranged at the top of the guide groove 52, a vertical plate connected with the rear edge of the cover plate 53 is arranged at the rear end of the counter lock push plate 50, the rear end face of the vertical plate is flush with the rear end face of the counter lock push plate 50, and the vertical plate abuts against the surface of the counter lock knob 60. The spring can be effectively prevented from jumping out through the cover plate 53, the contact area and the height of the back locking push plate 50 and the back locking knob 60 are effectively increased through the vertical plate, and the back locking knob 60 can push the back locking push plate 50 to move more stably.

Further improvement and further optimization of the structure are preferably performed, two extension rods 21 are disposed on two sides of the tail end of the locking bolt 20, the abutting block 22 is disposed at the tail end of the extension rod 21, and the counter lock push plate 50 and the counter lock knob 60 are disposed between the two extension rods 21.

Further, it is improved to optimize a first resetting device, preferably, the square rod head 30 is disposed at the end of the installation cavity 11, and the first resetting device includes:

a fixing lever 32, the fixing lever 32 being provided at a rear side of the square head 30;

the clamping plate 12 is arranged on the side wall at the tail end of the mounting cavity 11;

the torsion spring is arranged on the fixing rod 32, and the support legs of the torsion spring are clamped on the clamping plate 12.

First resetting means also can be for being provided with an annular in square pole head 30 middle part, the annular endotheca is equipped with a torsional spring, and the torsional spring has two stabilizer blades, and a stabilizer blade is fixed with square pole head 30, and another stabilizer blade is fixed in on the installation cavity 11 inner wall. The first resetting device may be any one of the existing resetting methods, which is not described herein.

Further, since the rotation angles of the transmission head 40 and the square pole head 30 do not exceed 180 degrees in the present embodiment, it is preferable that the driving tooth 31 is disposed at the front side of the square pole head 30 and the driven tooth 41 is disposed at the rear side of the transmission head 40 in order to save cost and production time. The driving teeth 31 and the driven teeth 41 are not provided with a complete ring body, but are provided with half, so that the processing time can be shortened, and the time cost and the labor cost can be reduced.

Further, the improvement is that different people have different requirements on the installation direction of the lock cylinder, and some people like that the lock holes in the lock cylinder body are vertical and some people like that the lock holes in the lock cylinder body are horizontally arranged, so that the second installation hole 61 is preferably a cross hole.

Further improve, drive arrangement can be the driving spring who sets up at spring bolt 20 rear to drive spring bolt 20 pops out, but can increase the structure of lock body 10 like this, and can increase the length of lock body 10, so it is preferred drive arrangement is for setting up in locked groove 71 and adsorbable spring bolt 20's magnet, under normal condition, when the door is not closed and not the back-locking, spring bolt 20 has great degree of freedom, can withdraw lock body 10 or stretch out the optional position between the lock body 10 completely, when the door is closed the back, magnet adsorbs spring bolt 20, thereby drive spring bolt 20 stretch out the lock body 10 outside and get into locked groove 71 in, thereby play the effect of locking the door.

The above is only the preferred embodiment of the present invention, not limiting the patent scope of the present invention, all of which are under the concept of the present invention, the equivalent structure transformation made by the contents of the specification and the drawings is utilized, or the direct or indirect application is included in other related technical fields in the patent protection scope of the present invention.

Claims

1. A door lock body, comprising:

the lock comprises a lock body (10), wherein a mounting cavity (11) is arranged in the lock body (10), a bolt (20) which can be put into the lock body (10) or extend out of the lock body (10) is arranged at the end part of the lock body (10), the tail end of the bolt (20) is positioned in the mounting cavity (11), and a butting block (22) is arranged at the tail end of the bolt (20);

the transmission head (40) is pivoted in the installation cavity (11), a driven tooth (41) is arranged on the transmission head (40), and a driving block (42) capable of being abutted against the abutting block (22) is arranged on the transmission head (40);

the square rod head (30) is pivoted in the mounting cavity (11), a first mounting hole (34) used for being connected with a handle is formed in the square rod head (30), a driving tooth (31) meshed with a driven tooth (41) is formed in the square rod head (30), a stopping part is formed in the square rod head (30), and a first resetting device is arranged on the square rod head (30);

the anti-lock mechanism comprises an anti-lock push plate (50), wherein the anti-lock push plate (50) is arranged in the installation cavity (11) and can horizontally move along the installation cavity (11), a stop position capable of being clamped with the stop part is arranged at the front end of the anti-lock push plate (50), and a second reset device is arranged on the anti-lock push plate (50);

the anti-locking device comprises an anti-locking knob (60), the anti-locking knob (60) is pivoted in the mounting cavity (11), the anti-locking knob (60) is an eccentric knob, a second mounting hole (61) used for being connected with a lock rod is formed in the middle of the anti-locking knob (60), and the surface of the anti-locking knob (60) is abutted to the anti-locking push plate (50) and can drive the anti-locking push plate (50) to move;

the door comprises a door cover (70), wherein a lock groove (71) for clamping the lock bolt (20) is formed in the door cover (70), the door cover (70) is used for being installed on a door frame, and a driving device for driving the lock bolt (20) to extend out of the lock body (10) is arranged in the door cover (70) or the lock body (10).

2. A door lock body as claimed in claim 1, wherein:

the driven teeth (41) are arranged at the lower end of the transmission head (40), and the driving block (42) is arranged at the upper end of the transmission head (40).

3. A door lock body as claimed in claim 1, wherein:

the stop part is a stop surface (33) arranged at the bottom of the square rod head (30), the stop position is the front end surface of the back locking push plate (50), and the front end surface of the back locking push plate (50) can be abutted against the stop surface (33).

4. A door lock body as claimed in claim 3, wherein:

the middle part of the back locking push plate (50) is provided with a through hole (51), the bottom of the transmission head (40) penetrates through the through hole (51) and is pivoted on the inner wall of the mounting cavity (11), and the driven tooth (41) is positioned above the back locking push plate (50).

5. A door lock body as claimed in claim 4, wherein:

one side of the through hole (51) is provided with a guide groove (52), the inner wall of the installation cavity (11) is provided with a reset plate (13) positioned in the guide groove (52), and the second reset device is a reset spring arranged between the reset plate (13) and the tail end of the guide groove (52).

6. A door lock body as claimed in claim 5, wherein:

the guide groove (52) is positioned at the rear side of the through hole (51), a cover plate (53) is arranged at the top of the guide groove (52), a vertical plate connected with the rear edge of the cover plate (53) is arranged at the rear end of the back locking push plate (50), the rear end face of the vertical plate is flush with the rear end face of the back locking push plate (50), and the vertical plate is abutted to the surface of the back locking knob (60).

7. A door lock body as claimed in claim 1, 2, 3, 4, 5 or 6, wherein:

two extension rods (21) are arranged on two sides of the tail end of the lock tongue (20), the abutting block (22) is arranged at the tail end of each extension rod (21), and the counter lock push plate (50) and the counter lock knob (60) are arranged between the two extension rods (21).

8. A door lock body as claimed in claim 1, 2, 3, 4, 5 or 6, wherein:

square pole head (30) set up in the end of installation cavity (11), first resetting means includes:

a fixing rod (32), the fixing rod (32) being provided on the rear side of the square head (30);

the clamping plate (12), the clamping plate (12) is arranged on the side wall of the tail end of the mounting cavity (11);

the torsion spring is arranged on the fixing rod (32), and the support legs of the torsion spring are clamped on the clamping plate (12).

9. A door lock body as claimed in claim 1, 2, 3, 4, 5 or 6, wherein:

the driving tooth (31) is arranged on the front side of the square rod head (30), and the driven tooth (41) is arranged on the rear side of the transmission head (40).

10. A door lock body as claimed in claim 1, 2, 3, 4, 5 or 6, wherein:

the driving device is a magnet which is arranged in the lock groove (71) and can adsorb the lock tongue (20).