Multi-point lock driving device

Abstract

The present invention relates to a multi-point lock driving device, which belongs to the technical field of building door and window equipment. The multi-point lock driving device comprises a base, a fork device, a slide device and a U-shaped bracket. The two sides of the base move in coordination with the sliding groove of the slide device through a slide rail device, and the first travel hole on the base cooperates with the third travel hole of the slide device and has a certain inclination angle. The fork device is installed in the above-mentioned hole, and the directional displacement transmission of the fork device is realized through the relative movement of the base and the slide device, so that the lock point transmission bar is correspondingly locked or unlocked. The whole process is mechanically driven, and does not need to rely on the drive of the motor and the control circuit. It has higher safety and stability. In addition, it has very wide applicability.

Description

Technical Field

[0001] The invention relates to the technical field of building door and window equipment, and in particular to a multi-point lock driving device. Background Art

[0002] At present, in order to ensure the wind pressure resistance, air tightness and water tightness of doors and windows, the construction industry generally uses handles to drive multi-point locks to open and close doors and windows. Because it is necessary to ensure that they can be opened normally, the installation height of ordinary door and window handles will not be too high.

[0003] There is also a special fire smoke exhaust window, also called ventilation window, which is a window type that is more commonly used in modern commercial buildings. Most of this type of windows are installed at a height that exceeds the height of normal people, so a window opener is needed to open and close the window.

[0004] There are three main driving modes for window openers: pneumatic, electric and manual, among which electric and manual are the most commonly used opening methods.

[0005] The electric window opener can drive the lock point by adding a multi-point lock driver. The electric window opener and the multi-point lock driver are two sets of devices that require the help of an external control circuit. The closing steps are: after the electric window opener is closed, the multi-point lock driver drives the lock point on the transmission rod to insert into the lock seat, and the window is locked; the opening steps are: the multi-point lock device drives the lock point on the transmission rod to disengage from the lock seat, and the electric window opener runs to open the window. The opening and closing actions are complicated, and most electric multi-point lock drivers have compatibility issues with the external control circuit of the electric window opener. Once the action is wrong, it will be damaged, and the cost is relatively high.

[0006] Ordinary manual window openers cannot achieve multi-point lock drive. In order to ensure the wind pressure resistance, air tightness and water tightness of the window, multiple manual window openers must be configured when encountering larger windows. When installed and used in a large area, if multiple manual window openers are not installed on the same horizontal line, it is easy to cause loud transmission noise from the manual window openers. Therefore, the installation is difficult and its use is greatly restricted. Summary of the invention

[0007] In order to overcome the defects of the prior art, the present invention provides a multi-point lock driving device, by correspondingly arranging a first travel hole and a third travel hole with a certain inclination angle on the base and the slide device, and installing a fork device in the hole. After the slide device is subjected to force, the transmission of the lock point transmission bar can be realized through the fork device. It is convenient and practical, and uses mechanical transmission, and is not affected by power control.

[0008] The technical solution to achieve the above purpose is:

[0009] The present invention provides a multi-point lock driving device, comprising:

[0010] A T-shaped base, wherein first steps are provided on both sides of the base, the base comprises a body, and slide rail devices are symmetrically provided on both sides of the head end of the body, a first recessed portion is provided on the top of the body, a first walking groove is provided in the first recessed portion, and a first walking hole is provided in the first walking groove;

[0011] A shift fork device, the shift fork device comprising an integrally connected transmission rod, a translation block and a shift fork, the transmission rod cooperates with the first travel hole, the translation block is located in the first travel groove, the first recessed portion is provided with a cover plate covering the translation block, the cover plate is provided with a second travel hole corresponding to the first travel hole, and the shift fork is connected to a locking point transmission bar after passing through the second travel hole;

[0012] The cam is an assembly of a plurality of movable parts, each of which is adapted to move along a line extending from one end of the second guide rail to another end of the second guide rail, wherein the movable part is an engagement member of a plurality of movable parts, and the engagement member is engaged with the plurality of movable parts in a plurality of opposite ends of the movable parts.

[0013] The U-shaped bracket has a bottom and two ears, wherein the bottom is connected to the bottom of the second mounting platform, and the two ears are connected to a power device, and force is applied to the slide device through the U-shaped bracket.

[0014] Furthermore, a wear-resistant plate is provided between the second mounting platform and the main body, the wear-resistant plate is installed on the second mounting platform, and is provided with a fourth travel hole corresponding to the third travel hole. The installation of the wear-resistant plate can eliminate most of the noise generated by movement friction and improve the service life of the device.

[0015] Furthermore, the first recessed portion is parallel to the head end of the main body, and the ends of the first walking hole, the second walking hole, the third walking hole and the fourth walking hole are all provided with an arc structure that cooperates with the transmission rod. During the movement of the transmission rod, it can move to the end of the hole as much as possible, thereby achieving a larger stroke within a limited movement space and making full use of the space.

[0016] Furthermore, the wear-resistant plate is a graphite wear-resistant plate, which has a certain lubricating effect through the graphite component, thereby reducing the use of lubricants and saving costs.

[0017] Furthermore, the elastic device is a spring, and the slide rail device and the stopper are respectively provided with cavities for accommodating both ends of the spring. After the slide device is subjected to force, the spring realizes the rebound of force so that the shift fork automatically returns to its original position.

[0018] Furthermore, the spring is provided with an adjusting screw passing through it, the block is provided with a threaded through hole matching the adjusting screw, the slide rail device is provided with a light hole matching the adjusting screw, and a spring support is sleeved on one end of the adjusting screw close to the block, and the spring support is located in the cavity of the block. According to the fatigue degree of the spring, the compression ratio of the spring can be adjusted accordingly by rotating the end of the adjusting screw close to the block with a tool, thereby ensuring that the spring can still be used after fatigue, thereby increasing the service life of the spring.

[0019] Furthermore, the inclination angle is 15°, 30°, 45°, 60° or 75°. Different inclination angles are selected according to the actual use environment of the doors and windows to achieve different movement distance ratios between the slide device and the fork.

[0020] Beneficial effect: Compared with the prior art, the difference of the present invention is that the multi-point lock driving device provided by the present invention includes a base, a fork device, a slide device and a U-shaped bracket. The two sides of the base move in coordination with the sliding groove of the slide device through the slide rail device, and the first travel hole on the base cooperates with the third travel hole of the slide device and has a certain inclination angle. The fork device is installed in the above-mentioned hole, and the directional displacement transmission of the fork device is realized through the relative movement of the base and the slide device, so that the lock point transmission bar is locked or unlocked accordingly. The whole process is mechanically driven, does not need to rely on the drive of the motor and the control circuit, and has higher safety and stability; the base and the slide device A graphite wear-resistant plate is also installed between the devices to eliminate the friction noise generated by movement and has a certain lubricating effect, which can save the use of lubricants and save costs; different inclination angles are set by the first travel hole and the third travel hole, and the relative movement between the base and the slide device and the fork device have different travel transmission ratios, which have high adaptability; in addition, an adjusting screw is set through the spring between the block and the slide rail device, and the compression ratio of the spring is increased by rotating the adjusting screw according to the fatigue degree of the spring, so that the spring can still be used normally after fatigue, which greatly extends the service life of the spring, that is, extends the life of the drive device and saves users' costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic structural diagram of a multi-point lock driving device according to a preferred embodiment of the present application.

[0022] Figure 2 This is an exploded schematic diagram of a multi-point lock driving device according to a preferred embodiment of the present application.

[0023] Figure 3 It is a structural schematic diagram of the base in this application.

[0024] Figure 4 It is a structural schematic diagram of the sliding platform device in this application.

[0025] Figure 5 This is a schematic diagram of the change of the multi-point lock driving device in this application from point A to point B.

[0026] Among them, 1-base, 11-first step, 12-main body, 13-slide rail device, 14-first recessed portion, 15-first walking groove, 16-first walking hole, 2-fork device, 21-transmission rod, 22-translation block, 23-fork, 3-cover plate, 31-second walking hole, 4-slide device, 41-second mounting table, 42-third walking hole, 43-sliding groove, 44-stopper, 45-elastic device, 46-limiting protrusion, 5-U-shaped bracket, 51-ear, 6-wear-resistant plate, 61-fourth walking hole, 7-adjusting screw, 71-spring support plate. DETAILED DESCRIPTION

[0027] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0028] See also Figures 1 to 5 As shown, the present invention provides a multi-point lock driving device, comprising:

[0029] A T-shaped base 1, wherein first steps 11 are provided on both sides of the base 1, the base 1 comprises a body 12, and slide rail devices 13 are symmetrically provided on both sides of the head end of the body 12, and a rectangular first recessed portion 14 is provided on the top of the body 12, a first walking groove 15 is provided in the first recessed portion 14, and a first walking hole 16 is provided in the first walking groove 15;

[0030] The shift fork device 2 comprises a transmission rod 21, a translation block 22 and a shift fork 23 which are connected in sequence from bottom to top. The transmission rod 21 cooperates with the first travel hole 16 and is used to travel in the first travel hole 16. The translation block 22 is located in the first travel groove 15. The first recessed portion 14 is provided with a cover plate 3 which is covered with the translation block 22. Preferably, the cover plate 3 has the same shape as the first recessed portion 14, so that the overall structure is beautiful. The cover plate 3 is provided with a second travel hole 31 corresponding to the first travel hole 16. The shift fork 23 passes through the second travel hole 31 and is connected to a locking point transmission bar, and the locking point transmission bar is driven by the shift fork 23 to be locked or unlocked;

[0031] The slide device 4 includes a second mounting platform 41 slidably connected to the bottom of the body 12, the second mounting platform 41 is provided with a third travel hole 42, the third travel hole 42 cooperates with the first travel hole 16 and has a certain inclination angle with the first travel hole 16, the bottom end of the transmission rod 21 passes through the first travel hole 16 and is inserted into the third travel hole 42, and the two sides of the second mounting platform 41 are respectively provided with sliding grooves 43 for accommodating the slide rail device 13, wherein the two sliding grooves 43 are symmetrically provided with a stopper 44 at one end away from the slide rail device 13, and an elastic device 45 is provided between the slide rail device 13 and the stopper 44, and the sliding groove 43 and the stopper 44 are all provided with a limiting protrusion 46 corresponding to the first step 11, which is used to make the base 1 and the slide device 4 only move relative to each other along the sliding groove 43, and realize the relative vertical movement between the slide device 4 and the fork 23 through the above-mentioned tilt angle, so as to transmit the force and make the lock point transmission bar enter the lock seat to realize multi-point lock transmission. The movement distance ratio between the slide device 4 and the fork 23 is different due to the different tilt angles. When the relative angle is small, the relative movement of the base 1 and the slide device 4 in the longitudinal direction makes the fork 23 move faster in the horizontal direction. When the relative angle is large, the fork 23 moves slower in the horizontal direction. When the slide device 4 is no longer under pressure, the elastic device 45 releases the compression force, and the fork 23 returns to the original path, i.e., unlocked.

[0032] as well as

[0033] The U-shaped bracket 5 has a bottom and two ears 51 , wherein the bottom is connected to the bottom of the second mounting platform 41 , and the two ears 51 are connected to a power device, so that force is applied to the slide device 4 through the U-shaped bracket 5 .

[0034] As a preferred embodiment of the present invention, a wear-resistant plate 6 is provided between the second mounting platform 41 and the main body 12. The wear-resistant plate 6 is installed on the second mounting platform 41 and is provided with a fourth travel hole 61 corresponding to the third travel hole 42. The transmission rod 21 passes through the fourth travel hole 61 and is inserted into the third travel hole 42, and the main body 12 of the base 1 slides on the surface of the wear-resistant plate 6. The installation of the wear-resistant plate 6 can eliminate most of the noise generated by movement friction and improve the service life of the device.

[0035] Preferably, the first recessed portion 14 is parallel to the head end of the main body 12, and the ends of the first walking hole 16, the second walking hole 31, the third walking hole 42 and the fourth walking hole 61 are all provided with an arc structure that cooperates with the transmission rod 21. During the movement of the transmission rod 21, the transmission rod 21 can move to the end of the hole as much as possible, thereby achieving a larger stroke within a limited movement space and making full use of the space.

[0036] Preferably, the wear-resistant plate 6 is a graphite wear-resistant plate, which has a certain lubricating effect through the graphite component, thereby reducing the use of lubricants and saving costs.

[0037] Preferably, the elastic device 45 is a spring, and the rail device 13 and the stopper 44 are respectively provided with cavities for accommodating both ends of the spring. After the slide device 4 is subjected to force, the spring realizes rebound of the force so that the fork 23 automatically returns to its original position.

[0038] As another preferred embodiment of the present invention, an adjusting screw 7 is provided through the spring, the block 44 is provided with a threaded through hole matching the adjusting screw 7, the slide rail device 13 is provided with a light hole matching the adjusting screw 7 to facilitate the installation and disassembly of the base 1, and a spring support piece 71 is sleeved on one end of the adjusting screw 7 close to the block 44, and the spring support piece 71 is located in the cavity of the block 44. According to the fatigue degree of the spring, the compression ratio of the spring can be adjusted accordingly by rotating the end of the adjusting screw 7 close to the block 44 with a tool to ensure that the spring can still be used after fatigue, thereby increasing the service life of the spring, and then increasing the service life of the drive device, saving user costs.

[0039] Preferably, the inclination angle is 15°, 30°, 45°, 60° or 75°. Different inclination angles are selected according to the actual use environment of the doors and windows to achieve different movement distance ratios between the slide device 4 and the fork 23. Obviously, in this technical field, technicians can easily think of the inclination angle between the first walking hole and the third walking hole, that is, the angle can also be set to 10°, 20° or 40°, 50°, etc., which is not limited here and is also within the protection scope of the present invention.

[0040] The multi-point lock driving device cooperates with the base and the slide device so that the slide device can only move in a direction along the direction of the slide rail device through the sliding groove, and a first travel hole and a third travel hole that match each other are arranged between the base and the slide device, and are connected by a transmission rod of a fork device. Since there is a certain inclination angle between the first travel hole and the third travel hole, that is, an included angle, the longitudinal movement of the slide device will inevitably cause the fork device to move laterally, and the slide device is connected to the power device through a U-shaped bracket to provide power, and the fork device is connected to the lock point transmission strip through the fork, that is, when people apply force to the slide device through the U-shaped bracket, the lock point transmission strip will move in a direction, thereby driving the window to be opened or closed.

[0041] The difference in inclination angles between the first travel hole and the third travel hole will cause a corresponding change in the transmission distance ratio, that is, when the angle is small, the same longitudinal movement distance of the slide device will cause the fork device to produce a larger lateral movement distance. If the angle is large, the same longitudinal movement distance will cause the fork device to produce a smaller lateral movement distance.

[0042] Since the multi-point lock drive device is a purely mechanical movement and is not affected by the motor and control circuit, it has higher transmission accuracy, more stable performance, simple structure, easy installation, low maintenance cost, and is perfectly compatible with electric drive and hand-cranked drive. It has a very broad application space and very wide applicability.

[0043] It should be noted that the terms "first, second, third and fourth" in the present invention are only used for descriptive purposes and do not represent any order. They cannot be understood as indicating or implying relative importance. These terms can be interpreted as names.

[0044] The above specific implementation methods are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A multi-point lock driving device, characterized in that: include: A T-shaped base, wherein first steps are provided on both sides of the base, the base comprises a body, and slide rail devices are symmetrically provided on both sides of the head end of the body, a first recessed portion is provided on the top of the body, a first walking groove is provided in the first recessed portion, and a first walking hole is provided in the first walking groove; A shift fork device, the shift fork device comprising an integrally connected transmission rod, a translation block and a shift fork, the transmission rod cooperates with the first travel hole, the translation block is located in the first travel groove, the first recessed portion is provided with a cover plate covering the translation block, the cover plate is provided with a second travel hole corresponding to the first travel hole, and the shift fork is connected to a locking point transmission bar after passing through the second travel hole; The sliding platform device comprises a second mounting platform slidably connected to the lower part of the body, the second mounting platform is provided with a third travel hole, the third travel hole matches with the first travel hole and has a certain inclination angle with the first travel hole, the bottom end of the transmission rod passes through the first travel hole and is inserted into the third travel hole, and sliding grooves for accommodating the slide rail device are respectively provided on both sides of the second mounting platform, wherein two sliding grooves are symmetrically provided with blocks at one end away from the slide rail device, an elastic device is provided between the slide rail device and the block, and the sliding groove and the block are both provided with limiting protrusions corresponding to the first step; and The U-shaped bracket has a bottom and two ears, wherein the bottom is connected to the bottom of the second mounting platform, and the two ears are connected to a power device.

2. The multi-point lock driving device according to claim 1, characterized in that: A wear-resistant plate is provided between the second mounting platform and the main body. The wear-resistant plate is installed on the second mounting platform and is provided with a fourth travel hole corresponding to the third travel hole.

3. The multi-point lock driving device according to claim 2, characterized in that: The first recessed portion is parallel to the head end of the body, and the ends of the first travel hole, the second travel hole, the third travel hole and the fourth travel hole are all provided with an arc structure matched with the transmission rod.

4. The multi-point lock driving device according to claim 2, characterized in that: The wear-resistant plate is a graphite wear-resistant plate.

5. The multi-point lock driving device according to claim 1, characterized in that: The elastic device is a spring, and the slide rail device and the stopper are respectively provided with cavities for accommodating the two ends of the spring.

6. The multi-point lock driving device according to claim 5, characterized in that: The spring is provided with an adjusting screw passing through it, the block is provided with a threaded through hole matched with the adjusting screw, the slide rail device is provided with a light hole matched with the adjusting screw, and a spring support is sleeved on one end of the adjusting screw close to the block, and the spring support is located in the cavity of the block.

7. The multi-point lock driving device according to claim 1, characterized in that: The inclination angle is 15°, 30°, 45°, 60° or 75°.

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