Multi-point lock body

Abstract

The utility model provides a multi-point lock body which comprises a locking assembly and a driving assembly, the driving assembly comprises a driving block, a driving block first gasket and a third driving strip, and the locking assembly comprises a second spring bolt and a driving spring. The second spring bolt is connected to the spring pressing block through the thrust spring, the spring pressing block is fixed in the lock body, and the driving block first gasket is fixedly connected with the driving block, is provided with a shifting end and is used for shifting the second spring bolt to compress the thrust spring and driving the second spring bolt to retract; the driving spring is arranged in a driving spring mounting groove of the lock body and is limited by the driving spring mounting groove; the third driving strip comprises a first bow part and a second bow part, the first bow part covers the driving spring, the second bow part accommodates and pushes the driving block, and the driving spring drives the third driving strip to align the rotated driving block. The utility model can solve the problem that most of the existing lock bodies are in one-way transmission, and the transmission strip can only move in one direction.

Description

TECHNICAL FIELD

[0001] The present application relates to the building industry, and is suitable for the field of building hardware, in particular to a multi-point lock body. BACKGROUND

[0002] The lock body is a common product component on the hardware of doors and windows, and is generally used to realize the locking function of the door so that the door cannot be opened at will. Most of the multi-point lock bodies on the market are one-way transmission, and the transmission bar can only move in one direction, and problems such as jamming may occur during use. CONTENT OF THE UTILITY MODEL

[0003] To solve or at least partially solve the above problems, the present application provides a multi-point lock body, which can realize locking or opening through bidirectional transmission of the same driving block, and has stable structure.

[0004] The multi-point lock body provided by the present application comprises a driving assembly, a locking assembly,

[0005] The driving assembly comprises a driving block, a driving block first gasket, a second driving bar and a third driving bar, and the locking assembly comprises a first lock tongue and a second lock tongue.

[0006] The second lock tongue is connected to a spring pressing block through a push spring, the spring pressing block is fixed in the lock body, the driving block first gasket is fixedly connected with the driving block and has a poking end for poking the second lock tongue to compress the push spring and drive the second lock tongue to retract, and a driving bar poking column is arranged on the driving block first gasket to drive the second driving bar, and the second driving bar drives the first lock tongue through a lock tongue poking column arranged on the first lock tongue.

[0007] In an optional embodiment of the present application, the driving assembly further comprises a driving spring,

[0008] The driving spring is arranged in a driving spring mounting groove of the lock body and is limited by the driving spring mounting groove, the third driving bar comprises a first arcuate portion and a second arcuate portion, the first arcuate portion is arranged on the driving spring, and the second arcuate portion accommodates and pushes the driving block, and the driving spring drives the third driving bar to correct the rotated driving block.

[0009] In an optional embodiment of the present application, the second arcuate portion is used to accommodate the driving block, and a protrusion is arranged in the middle portion of the second arcuate portion, the protrusion is embedded in a corresponding notch on the driving block to push the driving block.

[0010] In an optional embodiment of the utility model, the second driving strip is provided with a first driving track for accommodating and driving the driving strip shifting column and a second driving track for accommodating and driving the lock tongue shifting column, the first driving track is arranged in parallel to the locking direction, and the second driving track comprises a track portion arranged in an inclined manner away from the locking direction and a clamping point portion at both ends of the track portion and perpendicular to the locking direction.

[0011] In an optional embodiment of the utility model, the driving assembly further comprises a first driving strip and a lock body shifting strip, the second driving strip is in meshing connection with a reversing gear, the reversing gear is in meshing connection with the first driving strip, the outer ends of the first driving strip and the second driving strip are each provided with a lock body shifting strip, a hanging point is arranged on the lock body shifting strip, and the hanging point is fixedly connected with an external transmission rod to drive the external transmission rod.

[0012] In an optional embodiment of the utility model, the driving assembly further comprises a shifting strip guide block, a sliding groove is arranged in the middle of the shifting strip guide block, the outer ends of the first driving strip and the second driving strip are each provided with a shifting strip guide block, and the lock body shifting strip is in sliding connection with the sliding groove of the shifting strip guide block.

[0013] In an optional embodiment of the utility model, the driving assembly further comprises a driving block second gasket, the driving block second gasket is fixedly connected with a driving block, and the end portion of the driving block second gasket limits the displacement of the second driving strip in the locking direction.

[0014] In an optional embodiment of the utility model, the second lock tongue is a bevel tongue, and the first lock tongue is a square tongue; a sliding groove is arranged on the bevel tongue in parallel to the locking direction, a reversing screw is arranged in the sliding groove to fix the bevel tongue to the lock body, and the reversing screw is located at the inner end of the sliding groove of the bevel tongue in a normal state.

[0015] In an optional embodiment of the utility model, the locking assembly further comprises a locking block, the locking block is driven by a lock core in a lock core hole and moves along a sliding groove of the locking block; the bottom of the locking block is provided with a clamping column for clamping with a locking block locking point in the lock body.

[0016] In an optional embodiment of the utility model, the lock body further comprises a fixing assembly, the fixing assembly comprises a lock shell, a cover plate, a lock body fastening screw, a front panel and a panel fastening screw, the cover plate is fixed on the lock shell through the lock body fastening screw, and the front panel is fixed on the lock body through the panel fastening screw, the front panel and the lock shell are each provided with a reserved hole position at the same position to install the lock body as a whole in a door leaf profile.

[0017] The utility model has the following advantages:

[0018] The lock body provided by the utility model is a bidirectional transmission multi-point lock body, the driving assembly of which can realize the extension and retraction of the lock tongue and the lock point, thereby adapting to the locking and unlocking operation of being installed on the door leaf and the door frame; the components thereof are connected through fastening screws or matched with sliding grooves, so that the lock body is complete, and after being installed on the door leaf profile, the lock piece assembly installed on the door frame profile can realize the opening, closing and locking operation of the door leaf, and the opening of the door leaf is limited; the driving assembly makes the lock body moving strip have good safety performance in the form of multi-point bidirectional movement; in addition, the diagonal tongue can be replaced in use direction through the reversing screw during installation, the adaptability of the lock body is improved, and the installation difficulty and cost are reduced. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced. Obviously, the drawings in the following description are only embodiments of the present application, and other drawings can be obtained by the provided drawings without creative labor for those skilled in the art.

[0020] Figure 1 : it is the structure exploded schematic view of the utility model;

[0021] Figure 1-1 : it is the structure internal schematic view of the utility model;

[0022] Figure 1-2 : it is the structure schematic of the driving part and the locking part of the utility model Figure 1 ;

[0023] Figure 1-3 : it is the structure schematic of the driving part and the locking part of the utility model Figure 2 ;

[0024] Figure 2 : it is the square tongue, lock body moving strip pop-out state schematic of the utility model Figure 1 ;

[0025] Figure 2-1 : it is the square tongue, lock body moving strip retraction state schematic of the utility model Figure 2 ;

[0026] Figure 3 : it is the diagonal tongue direction 1 state schematic of the utility model Figure 1 ;

[0027] Figure 3-1 : it is the diagonal tongue direction 2 state schematic of the utility model Figure 2 ;

[0028] Figure 4 : it is the lock shell schematic of the utility model;

[0029] Figure 5 : it is the schematic diagram of lock piece of the utility model;

[0030] Figure 6 : it is the schematic diagram of drive block of the utility model.

[0031] In the drawing,

[0032] 1-lock shell, 10-drive slide, 11-reversing screw hole, 12-drive spring installation slot, 13-latch spring slot, 14-drive block mounting hole, 15-steel ball mounting hole, 16-lock block sliding groove, 17-lock block locking point, 18-lock cylinder hole, 19-front panel screw hole;

[0033] 2-lock block, 21-spring compression block, 22-latch spring, 23-steel ball, 24-steel ball spring, 25-square tongue, 26-latch, 27-latch silencer;

[0034] 3-reversing screw;

[0035] 4-drive block, 40-gap, 41-drive block first gasket, 411-drive bar lever, 42-drive block second gasket, 43-drive spring, 44-first drive bar, 45-reversing gear, 46-second drive bar, 47-lock body moving bar, 48-moving bar guide block, 49-third drive bar;

[0036] 5-front panel, 51-panel fastening screw;

[0037] 6-cover plate, 61-lock body fastening screw;

[0038] 7-lock piece, 71-latch decoration cover, 72-square tongue decoration cover. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical scheme and advantages of the present application more clear, the technical scheme of the present application will be described clearly and completely in combination with the specific embodiments of the present application and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making creative labor belong to the scope of protection of the present application.

[0040] In order to achieve the purpose of the present application, the technical scheme adopted by the present application is: a lock body with bidirectional transmission of lock points, comprising a drive assembly, a locking assembly and a fixed assembly connected to the two ends of the drive assembly, and each assembly is modularly designed to improve the stability of the product in use; in cooperation with the lock piece assembly, the lock body moving bar is stretched and contracted to realize the opening and closing of the door frame and the door leaf.

[0041] The embodiment of the present application provides a multipoint lock body, referring to the drawings, in particular Figure 1 and Figure 1-1 , comprising a driving assembly, a locking assembly,

[0042] The driving assembly comprises a driving block 4, a driving block first gasket 41, a second driving strip 46 and a third driving strip 49, and the locking assembly comprises a first lock tongue and a second lock tongue.

[0043] The second lock tongue is connected to a spring pressing block 21 through a thrust spring, the spring pressing block 21 is fixed in the lock body, the driving block first gasket 41 is fixedly connected with the driving block 4 and has a poking end, which is used for poking the second lock tongue to compress the thrust spring and drive the second lock tongue to retract, a driving strip poking column 411 is arranged on the driving block first gasket 41 and used for driving the second driving strip 46, and the second driving strip 46 drives the first lock tongue through a lock tongue poking column arranged on the first lock tongue.

[0044] In one embodiment provided by the embodiment of the present application, the driving assembly further comprises a driving spring 43, referring to Figure 1-2 and Figure 4 ,

[0045] The driving spring 43 is arranged in a driving spring mounting groove 12 of the lock body and is limited by the driving spring mounting groove 12, the third driving strip 49 comprises a first arch part and a second arch part, the first arch part is arranged on the driving spring 43, and the second arch part accommodates and pushes the driving block 4, and the driving spring 43 drives the third driving strip 49 to correct the rotated driving block 4.

[0046] In one embodiment provided by the embodiment of the present application, referring to Figure 1-2 , the second arch part is used for accommodating the driving block 4, a protrusion is arranged in the middle of the second arch part, the protrusion is embedded in a corresponding notch 40 on the driving block 4 to push the driving block 4, and the notch 40 is shown in Figure 6 . The driving spring 43 is covered by the first arch part of the third driving strip 49, and the driving spring 43 is arranged in the driving spring mounting groove 12 as shown in Figure 4 , and both ends of the driving spring 43 are limited by both ends of the driving spring mounting groove 12. Further referring to Figure 4 , a driving slide 10 is arranged in the lock shell 1, the third driving strip 49 can slide along the driving slide 10, the driving spring mounting groove 12 is located in the middle of the driving slide 10, the driving spring mounting groove 12 is wider than the driving slide 10, both ends of the driving spring mounting groove 12 have shoulder parts, and both ends of the driving spring 43 are limited by the shoulder parts of both ends of the driving spring mounting groove 12. Exemplarily, referring to Figure 1-2When the driving block 4 is rotated counterclockwise by the driving torque, the third driving bar 49 is moved to the upper left by the driving protrusion fixed to the second arch of the driving block 4, the first arch exerts pressure on the right lower end of the driving spring 43, and the left upper end of the driving spring 43 is limited by the left upper end wall of the driving spring mounting groove 12; when the driving torque on the driving block 4 is removed, the driving spring 43 is stretched to exert a pushing force on the right lower end of the first arch to drive the third driving bar 49 to move to the lower right and further drive the driving block 4 to reset, and the right lower end of the driving spring 43 is limited by the right lower end wall of the driving spring mounting groove 12. When the driving block 4 is rotated clockwise by the driving torque, the principle is similar, which will not be repeated. The driving spring mounting groove 12 and its shoulder portion, and the first arch of the third driving bar 49 collectively surround the driving spring 43, so that the driving spring 43 moves in the surrounding area, which is convenient to install and stable in transmission.

[0047] In an embodiment provided by the embodiment of the present application, referring to Figure 1-2 , the second driving bar 46 is provided with a first driving track accommodating and driving the driving bar shifting column 411, and a second driving track accommodating and driving the lock tongue shifting column, the first driving track is arranged parallel to the locking direction, and the second driving track includes a track portion arranged obliquely away from the locking direction and a clamping point portion perpendicular to the locking direction at both ends thereof.

[0048] In an embodiment provided by the embodiment of the present application, referring to Figure 1-3 , the driving assembly further includes a first driving bar 44 and a lock body shifting bar 47, the second driving bar 46 is engaged with the reversing gear 45, the reversing gear 45 is engaged with the first driving bar 44, the outer ends of the first driving bar 44 and the second driving bar 46 are each provided with the lock body shifting bar 47, and the lock body shifting bar 47 is provided with a hanging point, which is fixedly connected with an external transmission rod to drive the external transmission rod. Exemplarily, the lock body is provided with a lock seat on the profile, the external transmission rod is provided with a lock point, and the hanging point on the lock body shifting bar 47 is connected with the external transmission rod to push or pull the external transmission rod, so that the lock point on the external transmission rod is locked or opened with the lock seat.

[0049] In an embodiment provided by the embodiment of the present application, referring to Figure 2 , the driving assembly further includes a shifting bar guide block 48, the middle portion of the shifting bar guide block 48 is provided with a sliding groove, the outer ends of the first driving bar 44 and the second driving bar 46 are each provided with the shifting bar guide block 48, and the lock body shifting bar 47 is slidingly connected with the sliding groove of the shifting bar guide block 48.

[0050] In an embodiment provided by the embodiment of the present application, referring to Figure 1-1The driving assembly further comprises a driving block second gasket 42 fixedly connected with the driving block 4, and one end of the driving block second gasket 42 limits the displacement of the second driving bar 46 in the locking direction.

[0051] In one embodiment provided by the embodiment of the application, referring to Figure 1-1 The second lock tongue is an oblique tongue 26, and the first lock tongue is a square tongue 25; a sliding groove is arranged on the oblique tongue 26 in parallel to the locking direction, a reversing screw 3 is arranged in the sliding groove and is used for fixing the oblique tongue 26 to the lock body, and the reversing screw 3 is located at the inner end of the sliding groove of the oblique tongue 26 in the normal state. The push spring is an oblique tongue spring 22.

[0052] In one embodiment provided by the embodiment of the application, referring to Figure 1-2 、 Figure 2 and Figure 4 The locking assembly further comprises a locking block 2 driven by a lock cylinder in the lock cylinder hole 18 and moved along a locking block sliding groove 16; the bottom of the locking block 2 is provided with a clamping column used for clamping with a locking block locking point 17 in the lock body.

[0053] In one embodiment provided by the embodiment of the application, referring to Figure 1-2 When locking, the driving block 4 rotates counterclockwise to drive the second driving bar 46 to move downward and drive the lock body moving bar 47 on the side to pop out to the outside of the lock body, meanwhile, the second driving bar 46 is engaged with the reversing gear 45, the reversing gear 45 is engaged with the first driving bar 44 to realize the different direction movement of the first driving bar 44 and the second driving bar 46, the first driving bar 44 drives the lock body moving bar 47 connected thereto to also pop out to the outside of the lock body, meanwhile, the square tongue 25 is connected with the second driving bar 46 through the track, the distance between the two lock body moving bars becomes larger when locking, the square tongue 25 gradually pops out, until the distance between the two lock body moving bars is the largest, at this time, the square tongue 25 completely pops out, meanwhile, the square tongue 25 can be locked by the locking block 2, at this time, the door leaf is completely locked.

[0054] When unlocking, the driving block 4 rotates clockwise to drive the second driving bar 46 to move upward and drive the lock body moving bar 47 on the side to retract to the inside of the lock body, meanwhile, the second driving bar 46 is engaged with the reversing gear 45, the reversing gear 45 is engaged with the first driving bar 44 to realize the different direction movement of the first driving bar 44 and the second driving bar 46, the first driving bar 44 drives the lock body moving bar 47 connected thereto to also retract to the inside of the lock body, meanwhile, the square tongue 25 is connected with the second driving bar 46 through the track, the distance between the two lock body moving bars becomes smaller when locking, the square tongue 25 gradually retracts, until the distance between the two lock body moving bars is the smallest, at this time, the square tongue completely retracts, at this time, the door leaf can be unlocked. The utility model has the advantages of good locking effect, high safety, stable product use and the like when locking.

[0055] In the embodiment of the present application, the square shaft is used for inserting into the square hole of the driving block 4 to provide driving in cooperation with the square hole. Normally, the door handle is horizontal, the latch 26 is locked, and the square tongue 25 is opened. When the door handle is lifted upward, the latch 26 is locked, the square tongue 25 is locked, and the driving block 4 is reset after the hand is released, and the door handle is automatically returned to the horizontal position. When the door handle is pressed downward, the latch 26 is opened, the square tongue 25 is opened, and the driving block 4 is reset after the hand is released, and the door handle is automatically returned to the horizontal position. Compared with the prior art which needs two driving devices, such as a door handle and a mortise lock, to respectively realize the opening and safe locking of the door, the present application can realize the opening and safe locking functions by rotating the single door handle in different directions.

[0056] In an embodiment provided by the present application, referring to Figure 1 、 3 , 4, the lock body further comprises a fixing assembly, the fixing assembly comprises a lock shell 1, a cover plate 6, a lock body fastening screw 61, a front panel 5, and a panel fastening screw 51, the cover plate 6 is fixed on the lock shell 1 through the lock body fastening screw 61, and the front panel 5 is fixed on the lock body through the panel fastening screw 51 passing through the front panel screw hole 19, the front panel 5 and the lock shell 1 are both provided with reserved hole positions at the same positions for mounting the lock body in a door leaf profile.

[0057] The technical scheme of the present application will be further described in detail with reference to the drawings and specific embodiments.

[0058] Referring to Figures 1 to 5 , in the bidirectional transmission reversible multi-point lock body in the embodiment, the lock body is installed on the door leaf through the front panel screw mounting hole, and the lock plate assembly is installed on the door frame through the screw mounting hole to realize the opening and locking of the lock body. The lock body comprises a fixing assembly, a locking assembly, and a driving assembly, and each assembly is installed in the lock shell.

[0059] In an embodiment provided by the application, the driving assembly comprises a driving block 4, a driving block first gasket 41, a driving block second gasket 42, a driving spring 43, a first driving bar 44, a reversing gear 45, a second driving bar 46, a lock body moving bar 47, a moving bar guide block 48, and a third driving bar 49. The driving block 4 is installed in the driving block mounting hole 14 of the lock shell 1. The driving block first gasket 41 is installed on the driving block 4. The driving bar pushing column 411 is installed on the driving block first gasket 41. The driving block second gasket 42 is installed on the driving block 4 and has the same installation axis as the driving block 4. The driving spring 43 is installed in the driving spring mounting groove 12. The first driving bar 44 is installed in the lock shell 1. The reversing gear 45 is engaged with the first driving bar 44. The second driving bar 46 is installed on the lock shell 1 and engaged with the reversing gear 45. The driving assembly of the utility model, after the components in the assembly are connected, the first driving bar 44 and the second driving bar 46 realize movement in different directions through the reversing gear 45 to realize the extension and contraction of the lock body moving bar 47.

[0060] In an embodiment provided by the application, the fixing assembly comprises a cover plate 6, a lock body fastening screw 61, a front panel 5, and a panel fastening screw 51. The cover plate 6 is fixed on the lock shell 1 through the lock body fastening screw 61. The front panel 5 is fixed on the lock body through the panel fastening screw 51. The front panel 5 and the lock shell 1 are both provided with the same position of the reserved hole position for installing the lock body in the door leaf or window leaf profile.

[0061] In an embodiment provided by the application, the locking assembly comprises a locking block 2, a spring pressing block 21, a latch spring 22, a steel ball 23, a steel ball spring 24, a square tongue 25, a latch 26, a latch mute cover 27, and a reversing screw 3. Referring to Figure 4 The locking block 2 is installed in the locking block sliding groove 16 of the lock shell 1. The spring pressing block 21 and the latch spring 22 are installed in the latch spring groove 13 of the lock shell 1. The steel ball 23 and the steel ball spring 24 are installed in the steel ball mounting hole 15 of the lock shell 1 for supporting the front panel 5. The square tongue 25 is installed in the mounting groove of the lock shell 1 and the square hole of the front panel 5. The latch 26 is installed in the latch mounting groove of the lock shell 1 and the latch mounting hole of the front panel 5. The reversing screw 3 is inserted into the reversing screw hole 11 of the lock shell 1 through the middle of the latch. The latch mute cover 27 is installed in the front end reserved position of the latch 26. The locking assembly of the utility model, the latch 26 and the square tongue 25 are located in the mounting groove of the lock shell 1. The rear end of the latch 26 is provided with the latch spring 22 for supporting the pop-out of the latch 26. The reversing screw 3 is located in the middle sliding groove of the latch 26 for limiting the pop-out distance of the latch 26.

[0062] In an embodiment provided by the application, referring to Figure 5The lock piece assembly comprises a lock piece 7, a latch cover 71 and a square tongue cover 72, the lock piece 7 is installed on a door frame, the latch cover 71 is installed in a hole position of the lock piece 7 and is fixed by buckle connection, and the square tongue cover 72 is fixed with the installation hole of the lock piece 7 by buckle connection.

[0063] In an embodiment of the application, the installation process of the lock body is as follows:

[0064] Before installation, the direction of the latch 26 is checked to match the opening direction of the door leaf, the inclined surface of the latch 26 should be in contact with the door frame during the closing process of the door leaf, and the latch 26 is pressed into the lock body by the closing pressure of the door leaf. If the direction of the latch 26 does not match the opening direction of the door leaf, the latch 26 can be pulled out after the reversing screw 3 is unscrewed, the latch 26 is rotated by 180 degrees and then reinstalled into the lock body, and finally the reversing screw 3 is screwed into the original position and the lock body is installed. The lock shell 1 is inserted into the leaf installation groove, and the front panel 5 and the door leaf are fixed in the installation groove by fastening screws, so that the lock body is fixedly connected with the door leaf.

[0065] The lock piece 7 is installed on the reserved position of the door frame, the latch hole position and the square tongue hole position of the lock piece 7 are observed to match the latch 26 and the square tongue 25 of the leaf lock body, and if the hole position is accurate, the lock piece 7 is fixedly connected with the door frame through the lock piece installation reserved hole by fastening screws.

[0066] The bidirectional transmission multi-point lock body of the utility model can realize the exchange of the use direction of the product through the reversing screw 3 according to different use directions during installation, improves the universality of the lock body, and makes the installation more convenient and has higher adaptability.

[0067] The locking assembly of the bidirectional transmission multi-point lock body can realize the locking of the door leaf, the square tongue 25 is popped out to the maximum position, the locking of the door leaf is realized through the driving locking block 2 and the square tongue 25 at this time, the movement of the square tongue 25 is limited, the second driving strip 46 cannot move, the movement of the whole inside of the lock body is limited, and the safety of the lock body is improved.

[0068] The lock piece assembly of the bidirectional transmission multi-point lock body can realize the cooperation of the latch 26 and the square tongue 25 when the door leaf and the door frame are closed after the lock body is installed, so as to realize the locking function of the door leaf and the door frame.

[0069] The above only describes the embodiments of the application and is not used to limit the application. The application can have various changes and modifications for those skilled in the art. Any modification, equivalent replacement, improvement and the like within the spirit and principle of the application should be included in the scope of the claims of the application.

Claims

1. A multipoint lock body characterised in that, The driving assembly comprises a driving block (4), a driving block first gasket (41), a second driving bar (46), and a third driving bar (49), and the locking assembly comprises a first lock bolt and a second lock bolt. The second lock bolt is connected to a spring pressing block (21) through a thrust spring, the spring pressing block (21) is fixed in a lock body, the driving block first gasket (41) is fixedly connected with the driving block (4) and has a pushing end for pushing the second lock bolt to compress the thrust spring and retract the second lock bolt, a driving bar pushing column (411) is arranged on the driving block first gasket (41) for driving the second driving bar (46), and the second driving bar (46) drives the first lock bolt through a lock bolt pushing column arranged on the first lock bolt. The driving assembly further comprises a driving spring (43), 2. A multipoint lock body as claimed in claim 1, characterised in that The driving spring (43) is arranged in a driving spring mounting groove (12) of the lock body and is limited by the driving spring mounting groove (12), the third driving bar (49) comprises a first arch portion and a second arch portion, the first arch portion is arranged on the driving spring (43), and the second arch portion accommodates and pushes the driving block (4), so that the driving spring (43) drives the third driving bar (49) to correct the rotated driving block (4). The second arch portion is used for accommodating the driving block (4) and is provided with a protrusion in the middle, the protrusion is embedded in a corresponding notch (40) of the driving block (4) to push the driving block (4).

3. A multipoint lock body as claimed in claim 2, wherein The second driving bar (46) is provided with a first driving track for accommodating and driving the driving bar pushing column (411) and a second driving track for accommodating and driving the lock bolt pushing column, the first driving track is arranged parallel to the locking direction, and the second driving track comprises a track portion arranged obliquely away from the locking direction and two head clamping point portions perpendicular to the locking direction.

4. The multipoint lock body defined in claim 1, wherein The driving assembly further comprises a first driving bar (44) and a lock body moving bar (47), the second driving bar (46) is meshingly connected with a reversing gear (45), the reversing gear (45) is meshingly connected with the first driving bar (44), the outer ends of the first driving bar (44) and the second driving bar (46) are each provided with the lock body moving bar (47), the lock body moving bar (47) is provided with a hanging point, and the hanging point is fixedly connected with an external transmission rod to drive the external transmission rod.

5. The multipoint lock body defined in claim 1, wherein The driving assembly further comprises a moving bar guide block (48) provided with a sliding groove in the middle, the outer ends of the first driving bar (44) and the second driving bar (46) are each provided with the moving bar guide block (48), and the lock body moving bar (47) is slidingly connected with the sliding groove of the moving bar guide block (48).

6. A multipoint lock body as claimed in claim 5, wherein The driving assembly further comprises a driving block second gasket (42), the driving block second gasket (42) is fixedly connected with the driving block (4), and one end of the driving block second gasket (42) limits the displacement of the second driving bar (46) in the locking direction.

7. The multipoint lock body defined in claim 1, wherein ​ 8. The multipoint lock body defined in claim 1, wherein The second lock tongue is a bevel tongue (26) and the first lock tongue is a square tongue (25); a sliding groove is arranged on the bevel tongue (26) in parallel to the locking direction, a reversing screw (3) is arranged in the sliding groove to fix the bevel tongue (26) to the lock body, and the reversing screw (3) is located at the inner end of the sliding groove of the bevel tongue (26) in normal state.

9. The multipoint lock body defined in claim 1, wherein The locking assembly further comprises a locking block (2) which is driven by a lock cylinder in a lock cylinder hole (18) to move along a locking block sliding groove (16); the bottom of the locking block (2) is provided with a clamping column for clamping with a locking block locking point (17) in the lock body.

10. The multipoint lock body defined in claim 1, wherein The lock body further comprises a fixing assembly, the fixing assembly comprises a lock shell (1), a cover plate (6), a lock body fastening screw (61), a front panel (5) and a panel fastening screw (51); the cover plate (6) is fixed on the lock shell (1) by the lock body fastening screw (61), and the front panel (5) is fixed on the lock body by the panel fastening screw (51); the front panel (5) and the lock shell (1) are both provided with reserved hole positions at the same positions for mounting the lock body as a whole in a door leaf profile.

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