A planar lock with multi-point linkage

Abstract

This application provides a multi-point linkage planar lock, belonging to the field of lock technology. It includes a base, an outer handle, a lock cylinder assembly, a connecting plate, and a shift fork. The base has a handle mounting groove and a lock cylinder mounting hole. The outer handle is mounted in the handle mounting groove by knurled pins. The lock cylinder assembly is mounted in the lock cylinder mounting hole by combination screws. The connecting plate is movably mounted on the back of the base by combination screws, and one end of the connecting plate has a rolling surface. The shift fork is mounted on the bottom of the lock cylinder assembly by combination screws, and one end of the shift fork has a rolling surface. The outer handle has a shift lever and a shift lever. The rolling surface corresponds to the shift lever and forms a first linkage locking point, and the rolling surface corresponds to the shift lever and forms a second linkage locking point. The other end of the connecting plate contacts and connects with the other end of the shift fork, forming a third linkage locking point. This application achieves multi-point linkage, giving the lock security and stability.

Description

Technical Field

[0001] This application relates to a planar lock with multiple locking points, belonging to the field of lock technology. Background Technology

[0002] A flat lock is a door lock installed on a cabinet door. Because the panel is parallel to the cabinet surface, it is called a flat lock. It generally includes a base, a handle, and a lock cylinder assembly. The handle and lock cylinder assembly are mounted on the base, or the handle is mounted on the base and the lock cylinder assembly is mounted on the handle. Locking is achieved through the cooperation of the handle, lock cylinder assembly, and base. Flat locks are generally used on metal electrical cabinet doors and are directly pressed into the mounting holes of the metal electrical cabinet door using an interference fit. This installation method has problems such as large installation gaps, poor sealing, and unstable locking. After a period of use, this can lead to defects such as leakage, locking failure, and jamming in the corresponding parts of the electrical cabinet door. Utility Model Content

[0003] In view of this, this application provides a planar lock with multi-locking point linkage, which enables the planar lock to have three-locking point linkage, making the locking process stable and reliable.

[0004] Specifically, this application is implemented through the following scheme:

[0005] A multi-point linkage planar lock includes a base, an outer handle, and a lock cylinder assembly. The base has a handle mounting groove and a lock cylinder mounting hole. The outer handle is mounted in the handle mounting groove by knurled pins. The lock cylinder assembly is mounted in the lock cylinder mounting hole by combination screws. The lock also includes a connecting plate and a fork. The connecting plate is movably mounted on the back of the base by combination screws, and one end of the connecting plate has a rolling surface. The fork is mounted on the bottom of the lock cylinder assembly by combination screws, and one end of the fork has a rolling surface. The outer handle has a lever and a lever. The rolling surface corresponds to the lever and forms a first linkage locking point. The rolling surface corresponds to the lever and forms a second linkage locking point. The other end of the connecting plate contacts and connects with the other end of the fork, forming a third linkage locking point.

[0006] This design utilizes the interplay of the connecting lever, lever fork, and outer handle to achieve multi-point linkage of the entire planar lock.

[0007] Furthermore, as a preferred option:

[0008] The other end of the connecting plate is equipped with an unlocking lever handle. Moving the unlocking lever handle causes the connecting plate to rotate around the combination screw, moving it away from the fork and opening the third linkage lock point. More preferably, the other end of the connecting plate is equipped with a tension spring, which connects the connecting plate to the base to reset the connecting plate. The connecting plate has a through hole, and the base corresponding to the through hole has a boss. One end of the tension spring is engaged with the through hole, and the other end is fixed to the boss.

[0009] The fork at one end where the second rolling surface is located is provided with a second unlocking lever handle. By moving the second unlocking lever handle, the second rolling surface of the fork is disengaged from or engaged with the second lever, thus completing the unlocking or stopping.

[0010] EPDM sealing gaskets are respectively fitted on lever one and lever two.

[0011] A protective cover is installed above the lock hole of the lock cylinder assembly, and an EPDM sealing gasket is installed on the side of the protective cover facing the lock hole.

[0012] The installation of EPDM gaskets in the aforementioned core areas ensures that the flat lock in this case meets the IP65 sealing protection requirements.

[0013] The shift fork is provided with an assembly hole, in which a steel ball is installed. A spring is provided between the steel ball and the base. The spring and the steel ball cooperate to position the latch of the lock cylinder assembly and the shift fork.

[0014] The shift fork is connected to a motor assembly for electrically unlocking. More preferably, the motor assembly includes a motor and an output shaft, with the output shaft connected to the shift fork. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a three-dimensional structural diagram of the present application;

[0017] Figure 2 This is a schematic diagram of the split structure of this application;

[0018] Figure 3 This is a schematic diagram of the structure of the locked portion of this application;

[0019] Figure 4 This is a schematic diagram of the front structure of this application;

[0020] Figure 5 for Figure 4 Cross-sectional view along the BB direction;

[0021] Figure 6 This is a three-dimensional structural diagram of another structure in this application;

[0022] Figure 7 for Figure 6 A schematic diagram of the split structure;

[0023] Figure 8 This is a schematic diagram of the rear structure of another structure in this application.

[0024] Numbering on the map:

[0025] 1. Base; 11. Handle mounting slot; 12. Lock cylinder mounting hole; 13. Protective cover mounting hole; 14. Boss; 2. Outer handle; 21. Lever 1; 22. Lever 2; 23. EPDM sealing gasket 1; 24. Roller pin 1; 25. Roller pin 2; 3. Connecting plate; 31. Sliding surface 1; 32. Tension spring; 33. Wire rod snap-fit ​​guide sleeve 1; 34. Wire rod snap-fit ​​guide sleeve 2; 35. Wire rod snap-fit ​​guide sleeve 3; 36. Actuating end; 37. Combination screw 1; 371. Hex nut; 372. Washer 1; 38. Through hole; 39. Unlock lever handle 1; 4. Lock cylinder assembly; 41. Protective cover; 411. Self-tapping screw; 412. Spring 1; 42. EPDM 43. Sealing gasket 2; 5. Combination screw 2; 6. Shift fork; 7. Assembly hole 1; 8. Spring 2; 9. Steel ball; 10. Assembly hole 2; 11. Unlock lever handle 2; 12. Assembly hole 3; 13. Sliding surface 2; 14. Motor assembly; 15. Output shaft; 16. Connecting sleeve; 17. Pressure plate. Detailed Implementation

[0026] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the technical solutions in the embodiments of this application will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit the technical solutions of this application. All other embodiments obtained by those skilled in the art based on the embodiments in this application without creative effort are within the scope of protection of this application.

[0027] It should be noted that when a component is referred to as "fixed to" or "set on" another component, it can be located directly or indirectly on that other component. When a component is referred to as "connected to" another component, it can be directly or indirectly connected to that other component. The terms "upper," "lower," "left," "right," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or position based on the orientation or position shown in the accompanying drawings, and are only for ease of description and should not be construed as limiting the present technical solution.

[0028] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or specifying the number of technical features. "A plurality of" means two or more, unless otherwise explicitly defined.

[0029] This embodiment provides a planar lock with multi-point linkage, combined with Figures 1 to 5 It includes a base 1, an outer handle 2, a connecting plate 3, a lock cylinder assembly 4, and a fork 5. The base 1 is provided with a handle mounting groove 11 and a lock cylinder mounting hole 12.

[0030] The outer handle 2, connecting plate 3, lock cylinder assembly 4, and fork 5 constitute a three-point linkage structure, specifically:

[0031] Combination Figure 2 The outer handle 2 is movably installed in the handle mounting groove 11 via knurled pin 1 24 and knurled pin 25. The outer handle 2 is provided with lever 1 21 and lever 2 22, which make the outer handle 2 swing relative to the base 1 and drive lever 1 21 and lever 2 22 to move.

[0032] Combination Figure 7 The connecting plate 3 is movably mounted on the back of the base 1 by a combination screw 37. The combination screw 37 is a hexagonal head Phillips head combination screw. A hexagonal nut 371 and a washer 372 are also provided between the connecting plate 3 and the connecting plate 3, so that the connecting plate 3 can rotate around the base 1. One end of the connecting plate 3 is provided with a rolling surface 31, and the other end forms a toggle end 36. The side of the toggle end 36 is provided with a through hole 38. A boss 14 is provided on the base 1 opposite to the through hole 38. A tension spring 32 is installed between the boss 14 and the through hole 38.

[0033] Combination Figure 5 The lock cylinder assembly 4 is installed in the lock cylinder mounting hole 12 by combination screw 2 43, and the shift fork 5 is installed at the bottom of the lock cylinder assembly 4 by combination screw 2 43. One end of the shift fork 5 is provided with a rolling surface 2 54, and the other end is in contact with the shifting end 36 of the connecting shift plate 3.

[0034] In the above structure, combined Figure 6Rolling surface 31 is correspondingly set with lever 21, and rolling surface 54 is correspondingly set with lever 22. As the outer handle 2 swings relative to the base 1, lever 21 engages or disengages from rolling surface 31, completing the locking or unlocking of the first linkage lock point; lever 22 engages or disengages from rolling surface 54, completing the locking or unlocking of the second linkage lock point, or the key drives the bolt of the lock cylinder assembly 4 to rotate, driving the fork 5 to rotate, causing rolling surface 54 to engage or disengage from lever 22, completing the locking or unlocking of the second linkage lock point; during the rotation of fork 5, fork 5 contacts and connects with the actuating end 36 to form a stop, or the end of fork 5 moves away from the actuating end 36 to complete the unlocking, thus completing the locking or unlocking of the third linkage lock point.

[0035] During installation, the aforementioned flat lock also features a sealing structure, specifically, combined with... Figure 2 , Figure 5 It mainly includes the following three parts:

[0036] Foam is installed on the back of the base 1 to seal the space between the base 1 and the installed facility.

[0037] The lever 21 and lever 22 pass through the base 1 and act on the connecting plate 3 and lever fork 5 on its back. To prevent leakage at the passing parts, EPDM sealing gaskets 23 are respectively provided at the contact surfaces of lever 21 and lever 22 with the base 1 to seal the connection between the outer handle 2 and the base 1.

[0038] A protective cover 41 is installed on top of the lock cylinder assembly 4. An EPDM sealing gasket 42 is installed on the side of the protective cover 41 facing the lock hole to seal the lock cylinder assembly 4.

[0039] The expansion foam and EPDM sealing gaskets installed at the aforementioned locations ensure that the flat lock in this case meets the IP65 sealing protection requirements.

[0040] In some implementations, combined Figure 3 , Figure 4 The base 1 is provided with a protective cover mounting hole 13. An automatic screw 411 is installed in the protective cover 13. A spring 412 is fitted on the self-tapping screw 411. The protective cover 41 is installed on the base 1 by the self-tapping screw 411 and the spring 412.

[0041] In some implementations, combined Figure 5 , Figure 7 The shift fork 5 is provided with an assembly hole 51. The base 1 corresponding to the assembly hole 51 is provided with a positioning hole on its back. A spring 511 is installed in the positioning hole. A steel ball 512 is provided on the top of the spring 511. The steel ball 512 is inserted into the assembly hole 51. The spring 511 and the steel ball 512 form the positioning structure of the shift fork 1.

[0042] To avoid lock failure and accommodate unlocking from the inside, combined with Figure 1 , Figure 3 The aforementioned lock can also be equipped with an unlocking lever handle 39 and an unlocking lever handle 521 on the back of the base 1 (i.e., the inside side of the door): the unlocking lever handle 39 is mounted on the actuating end 36, and the unlocking lever handle 521 is mounted on the fork 5 at the end where the rolling surface 54 is located. Turning the unlocking lever handle 39 counterclockwise will cause the connecting plate 3 to rotate around the combination screw 37, causing its upper end (here, the upper end is relative to...) to... Figure 3 (Regarding) the lever 21, the actuating end 36 is away from the fork and lever 21; during this process, the tension spring 32 is in a compressed state. After the force is removed, the tension spring 32 restores its deformation and pushes the actuating end 36 back to contact the fork 5. Similarly, when the unlocking lever handle 2 521 is turned counterclockwise, since the unlocking lever handle 2 521 is installed on the fork 5 through the mounting hole 2 52, the unlocking lever handle 2 521 will drive the fork 5 to swing counterclockwise. The rolling surface 2 54 of the fork 5 abuts against the lever 2 22, thereby pushing the outer handle 2 to swing, completing the unlocking from the inside.

[0043] A wire rod snap-on guide sleeve can also be installed on the connecting plate 3, such as... Figure 1 , Figure 2 , Figure 3 The three types of wire rod clip-on guide sleeves are: 1. 33. 2. 34. 35. The main function of the clip-on guide sleeve is to facilitate the installation of L-shaped or U-shaped wire rods.

[0044] Taking the base 1, which is 148.5mm long and 87mm wide, as an example, the above-mentioned three-point linkage locking structure can achieve a horizontal extension distance of 12mm for the planar lock. Figure 8 (As shown by the horizontal arrows on the upper and lower sides), the longitudinal extension distance can reach 9mm. Figure 8 (As indicated by the vertical arrow on the upper middle side).

[0045] In the above scheme, mounting hole 3 53 can also be provided on the shift fork 5. Mounting hole 3 53 can be an elliptical hole. A motor assembly 6 can be installed at the position corresponding to mounting hole 3 53 to realize electric unlocking. Specifically, the motor assembly 6 includes a motor and an output shaft 61, and the output shaft 61 is connected to mounting hole 3 53. The motor drives the output shaft 61 to extend and retract, causing the shift fork 5 to swing, thereby realizing electric unlocking of the lock.

[0046] A connecting sleeve 62 can also be installed on the motor assembly 6 (such as on the side). A fixing screw is inserted into the connecting sleeve 62 to fix the motor assembly 6 on the flat lock mounting device and avoid drive instability caused by drive vibration.

[0047] In some implementations, combined Figure 1, Figure 2 , Figure 6 , Figure 8 A pressure plate 7 can also be installed on the back of the base 1. The upper and lower ends of the pressure plate 7 are fixed to the base 1 respectively, and the middle part has an outward convex structure. This outward convex structure forms an accommodating space with the back of the base 1. The connecting plate 3, the fork 5 and other components are all located within this accommodating space. This not only serves to fix the base 1, but also protects the connecting plate 3 and the fork 5.

[0048] The above-described embodiments are merely illustrative of several feasible implementations of the present invention, and their descriptions are relatively specific and detailed. However, they should not be construed as limiting the scope of the present invention, nor are the embodiments intended to limit the scope of protection in the claims of the present invention. For those skilled in the art, various modifications and improvements can be made without departing from the concept of the present invention. All equivalent implementations or changes that do not depart from the present invention should be included in the technology of the present invention.

Claims

1. A multi-point linkage planar lock, comprising a base, an outer handle, and a lock cylinder assembly, wherein the base is provided with a handle mounting groove and a lock cylinder mounting hole, the outer handle is mounted in the handle mounting groove by knurled pins, and the lock cylinder assembly is mounted in the lock cylinder mounting hole by combination screws, characterized in that: Also include a connection dial and dial, dial through the combination of screw mounted on the back of the base, dial one end is provided with a rolling surface one; dial through the combination of screw installed at the bottom of the lock cylinder assembly, one end of the dial is provided with a rolling surface two; the outer handle is provided with dial rod one and dial rod two, rolling surface one and dial rod one corresponding setting, and form a first linkage lock point, rolling surface two and dial rod two corresponding setting, and form a second linkage lock point; the other end of the connection dial and the other end of the dial contact connection, and form a third linkage lock point.

2. The multi-point locking linkage planar lock according to claim 1, wherein: The other end of the connection dial is provided with a lock dial handle one, pull the lock dial handle one, drive the connection dial winding around the combination of screw, so that it away from the dial, the third linkage lock point open.

3. The multi-point locking linkage planar lock according to claim 2, wherein: The other end of the connection dial is provided with a tension spring, the tension spring is connected between the connection dial and the base, to reset the connection dial.

4. The multi-point locking linkage planar lock according to claim 3, wherein: The connection dial is provided with a through hole, and the base corresponding to the through hole is provided with a boss, one end of the tension spring is buckled in the through hole, and the other end is fixed on the boss.

5. The multi-point interlocking planar lock according to claim 1, wherein: The dial rod one and the dial rod two are respectively provided with an EPDM sealing gasket.

6. The multi-point interlocking planar lock according to claim 1, wherein: The lock hole of the lock cylinder assembly is provided with a protective cover, and the protective cover is provided with an EPDM sealing gasket on the side facing the lock hole.

7. The multi-point interlocking planar lock according to claim 1, wherein: The dial is provided with an assembly hole, a steel ball is installed in the assembly hole, and a spring is arranged between the steel ball and the base.

8. The multi-point interlocking planar lock according to claim 1, wherein: The dial is connected with a motor assembly, which realizes electric unlocking.

9. The multi-point interlocking planar lock according to any one of claims 1-8, wherein: The motor assembly comprises a motor and an output shaft, and the output shaft is connected with the dial.

10. The multi-point locking linkage planar lock of claim 9, wherein: ​

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