Electric lock mechanism for flip window

Abstract

The present invention is applicable to the field of electric locks, and provides an electric lock mechanism for a flip window, including a first lock, a second lock, and a lock body, wherein the lock body includes a lock tongue, a lock claw, and an outer opening plate, wherein the lock tongue and the lock claw are engaged in the form of latching teeth, the outer opening plate is used to control the lock claw, the first lock is used to drive the outer opening plate to rotate, and the second lock is used to move the lock body forward and backward. The electric lock of the present invention replaces the traditional manual operation mode, and adopts two linear drive locks as the power source. Through the combination of the first-level half-locking function and the second-level full-locking function, it can ensure the compression of the flip window and the cab sealing strip to prevent rainwater from leaking into the cab. The electric lock has the characteristics of small size, reasonable space layout, good self-locking function and smooth movement, and is suitable for wide promotion and use.

Description

Technical Field

[0001] The invention belongs to the technical field of electric locks, and in particular relates to an electric lock mechanism for a flip window. Background Art

[0002] At present, when the flip window on the cab of an engineering machinery is in a closed state, it is required that the flip window and the sealing strip on the cab be in a compressed state to prevent rainwater from leaking into the cab.

[0003] The conventional solution is to use a manual lock body to ensure that the flip window is pressed tightly against the cab sealing strip when the flip window is closed. This manual lock body is suitable for use in a manual operating system that uses a gas spring as an auxiliary power when the flip window is opened and closed.

[0004] At present, the flip window of the engineering machinery cab is gradually developing towards electrification and automation during operation. In order to avoid frequent manual operation of the bulky flip window in the narrow cab, the driving power of the flip window adopts an electric support rod, a linear motor or other linear drive as the power source; at the same time, when it is closed, the lock body of the flip window is an electric lock with feedback function. In the patent with announcement number CN210798669U, the electric lock is installed on the front top of the cab windshield through a bracket. Although the electric lock of this scheme can ensure the locking function of the flip window when it is closed, due to the installation error of the electric lock or the clearance error between the electric lock tongue and the lock buckle on the flip window, the flip window and the cab sealing strip cannot be pressed together, and rainwater leaks into the cab. Summary of the invention

[0005] In view of the above problems, an object of the present invention is to provide an electric locking mechanism for a flip window, aiming to solve the technical problem that the existing flip window cannot be automatically locked.

[0006] The present invention adopts the following technical solution:

[0007] The electric lock mechanism of the flip window includes a first lock, a second lock and a lock body, the lock body includes a lock tongue, a lock claw and an outer opening plate, the lock tongue and the lock claw are engaged in the form of latching teeth, the outer opening plate is used to control the lock claw, the first lock is used to drive the outer opening plate to rotate, and the second lock is used to move the lock body forward and backward.

[0008] Furthermore, the lock body also includes a mounting plate and a bearing plate, the lock tongue and lock claw are installed between the mounting plate and the bearing plate, a baffle rod is also formed on the edge of the lock claw, the outer opening plate shaft is installed on the mounting plate, and the bottom of the outer opening plate is located on one side of the baffle rod.

[0009] Furthermore, the mounting plate is provided with a cam column upward and first guide columns arranged on the left and right, the fixed plate is provided with an avoidance groove corresponding to the position of the cam column, the lock body is installed through the fixed plate, the fixed plate is provided with front and rear guide grooves corresponding to the position of the first guide column, the fixed plate is provided with second guide columns front and back upward, a cam plate is provided above the fixed plate, the cam plate is provided with left and right guide grooves corresponding to the position of the second guide column, and the cam plate is further provided with a cam groove corresponding to the position of the cam column, the first guide column and the second guide column are respectively passed through the corresponding guide grooves and then nuts are screwed on, and the cam column passes through the avoidance groove and the cam groove in sequence.

[0010] Furthermore, a tension plate is fixed outwardly of the cam plate, and the second locking device is connected to the tension plate.

[0011] Furthermore, the first locker is connected to the top of the outer opening plate through a pull rod.

[0012] Furthermore, one end of the pull rod is movably connected to the first locker in a front-to-rear manner, and the other end of the pull rod is movably connected to the outer opening plate in a pitching manner.

[0013] Furthermore, a manual shifting column is fixed on the outer side of the outer opening plate.

[0014] Furthermore, a transmission member is installed between the mounting plate and the bearing plate, and a sensor is provided near the transmission member.

[0015] The beneficial effects of the present invention are:

[0016] The electric lock of the present invention is a two-stage lock structure, with a first-stage half-lock and a second-stage full-lock function, so that the lock body and the lock buckle collide and contact when the flip window is closed, and the electric lock and the lock buckle complete the first-stage half-lock function; after the electric lock sends a half-lock signal, the electric lock body continues to move forward under the action of the second lock to complete the second-stage full-lock function, ensuring that the cab sealing strip is in a compressed state. The electric lock of the present invention replaces the traditional manual operation mode and adopts two linear drive locks as the power source. Through the combination of the first-stage half-lock function and the second-stage full-lock function, it can ensure the compression of the flip window and the cab sealing strip to prevent rainwater from leaking into the cab. The electric lock has the characteristics of small size, reasonable space layout, good self-locking function and smooth movement, and is suitable for wide promotion and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the installation of the electric lock mechanism of the flip window;

[0018] Figure 2 It is a structural diagram of the electric lock mechanism of the flip window in the locked state;

[0019] Figure 3 This is a structural diagram of the electric lock mechanism of the flip window in the unlocked state;

[0020] Figure 4 It is the structural diagram of the lock body;

[0021] Figure 5 This is the internal structure diagram of the lock body;

[0022] Figure 6 It is a diagram of the lock structure;

[0023] Figure 7 It is a stereoscopic diagram of the driving structure for the lock body to move forward and backward;

[0024] Figure 8 It is an exploded view of the drive structure that moves the lock body back and forth. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0026] In order to illustrate the technical solution of the present invention, a specific embodiment is provided below for illustration.

[0027] Figure 1-3 The structure of the electric lock mechanism for a flip window provided by an embodiment of the present invention is shown. For the sake of convenience, only the part related to the embodiment of the present invention is shown.

[0028] like Figure 1-3 As shown, the electric lock mechanism of the flip window provided in this embodiment includes a first lock 1, a second lock 2, a lock body 3, and a lock buckle 4 is installed on the flip window. The lock body 3 and the two locks are installed on the cab frame through a fixing plate. In the embodiment, the first lock is a gear rack mechanism; the second lock is a combination of a worm gear mechanism and a gear rack mechanism, which has a good self-locking function. In the figure, the fixing plate corresponding to the lock body is marked as 31. Figure 4 , 5 As shown, the lock body includes a lock tongue 32, a lock claw 34 and an outer opening plate 33, the lock tongue 32 and the lock claw 34 are engaged with each other in the form of a latching tooth, the first lock 1 is used to drive the outer opening plate 33 to rotate, and the second lock 2 is used to move the lock body forward and backward. The "front", "rear", "left" and "right" in this embodiment are consistent with the "front", "rear", "left" and "right" directions of the flip window corresponding to the cab in normal circumstances.

[0029] In the figure, the mark A is the cab frame, and the mark B is the flip window. The main body of the electric lock is installed on the top of the front edge of the cab frame, and the lock catch is installed on the upper part of the flip window. Figure 2 The display shows the locked state. Figure 3Shown is unlocked state.

[0030] When the lock is unlocked, if the flip window is to be closed, the lock tongue on the lock body contacts and collides with the lock buckle, the lock tongue rotates counterclockwise, the lock claw contacts and rotates to the self-locking position to prevent the lock tongue from being separated from the lock buckle, and the lock body enters a semi-locked state; then the second locker drives the lock body to move forward, which can drive the flip window to continue to move forward, and the flip window is pressed against the sealing strip to realize the secondary full-locking function of the electric lock mechanism.

[0031] When in the locked state, if the flip window is to be opened, the lock body is driven in the reverse direction by the second lock, that is, the second lock drives the lock body to move backward, and the lock body drives the flip window to move backward, and the flip window and the sealing strip are loosened; the first lock drives the outer opening plate to rotate clockwise, the locking claw also rotates, the lock tongue disengages from the self-locking position of the lock claw, and the lock buckle and the lock tongue can be smoothly disengaged, realizing the unlocking function of the electric lock mechanism.

[0032] As a specific structure of the lock body, the lock body also includes a mounting plate 35 and a bearing plate 36. The lock tongue 32 and the lock claw 34 are both mounted between the mounting plate 35 and the bearing plate 36. A stop bar 37 is also formed on the edge of the lock claw 34. The outer opening plate 33 is mounted on the mounting plate 35, and the bottom of the outer opening plate 33 is located on one side of the stop bar 37. The mounting plate and the bearing plate are used as bearing structures for mounting the lock tongue, the lock claw and the outer opening plate. In this embodiment, the lock claw is mounted by a reset torsion spring, and the lock tongue and the lock claw are engaged in the form of a tooth. In the figure, there are two tooth positions on one side of the lock tongue, and a corresponding block is provided on one side of the lock claw. In the unlocked state, the block is located at the outer tooth position. When the lock tongue and the lock buckle come into contact and collision, the lock tongue rotates counterclockwise, and then the block is located at the inner tooth position. At this time, the lock claw and the lock tongue form a self-locking. When unlocking is required, the lock claw is rotated by the bottom of the outer opening plate, and the block is separated from the tooth position of the lock tongue to complete unlocking. The lock tongue can also be provided with a reset torsion spring so that the lock tongue can automatically rotate out clockwise.

[0033] The rotation of the outer opening plate 33 is controlled by the first locker 1. In this structure, the first locker 1 is connected to the top of the outer opening plate 33 through a pull rod 11. When the lock body moves forward and backward, the pull rod will be driven to deflect at a small angle. Therefore, in this embodiment, one end of the pull rod 11 is movably connected to the first locker 1 in a forward and backward manner, and the other end of the pull rod 11 is movably connected to the outer opening plate 33 in a pitching manner.

[0034] In addition, as shown in the figure, a manual shifting post 331 is fixed to the outside of the outer opening plate 33. When the outer opening plate 33 loses power, the manual shifting post is manually operated to rotate the locking claw, and the locking claw is separated from the locking tongue, thereby completing the unlocking function.

[0035] As a preferred structure, a transmission member 38 is installed between the mounting plate 35 and the bearing plate 36, and a sensor 39 is provided near the transmission member 38. Figure 6 When the locking tongue collides with the locking latch, the lock buckle will also collide with the transmission member. Then the sensor detects the movement of the transmission member, and it is known that the lock buckle has been moved into place. At this time, the sensor sends a feedback signal to the control unit of the electric lock, and then controls the movement of the second locking device to drive the flip window and the sealing strip of the driving building to be pressed tightly.

[0036] In this embodiment, the lock body is controlled by the second lock when it moves forward and backward. As a specific control structure, Figure 7 , 8 As shown, the mounting plate 35 is provided with a cam column 351 and first guide columns 352 arranged on the left and right. The lock body is installed through the fixing plate 31. The fixing plate 31 has an avoidance groove 311 corresponding to the position of the cam column. The fixing plate 31 has a front and rear guide groove 312 corresponding to the position of the first guide column 352. The fixing plate 31 is provided with a second guide column 313 on the front and rear. The fixing plate 31 has a cam plate 314 above the fixing plate 31. The cam plate 314 has a left and right guide groove 315 corresponding to the position of the second guide column 313. The cam plate 314 also has a cam groove 316 corresponding to the position of the cam column. The cam groove is oblique. The first guide column 352 and the second guide column 313 pass through the corresponding guide grooves and then screw on nuts. The cam column 351 passes through the avoidance groove 311 and the cam groove 316 in sequence. The cam plate 314 is also fixed with a tension plate 317 outwardly. The second locking device 2 is connected to the tension plate 317 through the driving arm 21.

[0037] In this structure, the position of the fixed plate is fixed, such as Figure 7 As shown, when the second locker drives the cam plate to move to the left, the cam column and the mounting plate move backward as a whole through the limiting effect of the cam groove, the first guide column and the front and rear guide grooves, and the mounting plate, the lock tongue, the lock claw, etc. are a whole, so the lock body is driven to move backward. Similarly, when the second locker acts in the reverse direction, it can drive the lock body to move forward.

[0038] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A flip window electric lock mechanism, characterized in that: The electric lock mechanism of the flip window includes a first lock, a second lock and a lock body, the lock body includes a lock tongue, a lock claw and an outer opening plate, the lock tongue and the lock claw are engaged in the form of a latch, the outer opening plate is used to control the lock claw, the first lock is used to drive the outer opening plate to rotate, and the second lock is used to move the lock body forward and backward; The lock body also includes a mounting plate and a bearing plate, the lock tongue and the lock claw are both mounted between the mounting plate and the bearing plate, a stop rod is also formed on the edge of the lock claw, the outer opening plate shaft is mounted on the mounting plate, and the bottom of the outer opening plate is located on one side of the stop rod; The mounting plate is provided with a cam column and first guide columns arranged on the left and right upwards, the lock body is installed through a fixing plate, the fixing plate is provided with an avoidance groove corresponding to the position of the cam column, the fixing plate is provided with front and rear guide grooves corresponding to the position of the first guide column, the fixing plate is provided with second guide columns front and back upwards, a cam plate is provided above the fixing plate, the cam plate is provided with left and right guide grooves corresponding to the position of the second guide column, the cam plate is further provided with a cam groove corresponding to the position of the cam column, the first guide column and the second guide column are respectively passed through the corresponding guide grooves and then nuts are screwed on, and the cam column passes through the avoidance groove and the cam groove in sequence.

2. The electric lock mechanism for a flip window as claimed in claim 1, characterized in that: A tension plate is also fixed outwardly of the cam plate, and the second locker is connected to the tension plate.

3. The electric lock mechanism for a flip window as claimed in claim 1, characterized in that: The first latch is connected to the top of the outer opening panel through a pull rod.

4. The electric lock mechanism for a flip window as claimed in claim 3, characterized in that: One end of the pull rod is movably connected to the first locker in a front-to-rear manner, and the other end of the pull rod is movably connected to the outer opening plate in a pitching manner.

5. The electric lock mechanism for a flip window as claimed in claim 4, characterized in that: A manual shifting column is fixed on the outer side of the outer opening plate.

6. The electric lock mechanism for a flip window according to any one of claims 1 to 5, characterized in that: A transmission member is installed between the installation plate and the bearing plate, and a sensor is arranged near the transmission member.

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