CN112963089B

CN112963089B - Convenient operation's shutter door ground lock

Info

Publication number: CN112963089B
Application number: CN202110217056.2A
Authority: CN
Inventors: 吴亮辉; 董飞波
Original assignee: Ningbo Chuanghui Intelligent Technology Co ltd
Current assignee: Ningbo Chuanghui Intelligent Technology Co ltd
Priority date: 2021-02-26
Filing date: 2021-02-26
Publication date: 2022-05-13
Anticipated expiration: 2041-02-26
Also published as: CN112963089A

Abstract

The invention discloses a rolling gate ground lock convenient and fast to operate, which comprises a key and a shell, wherein the shell is provided with a lock body, the lock body is provided with a gear, the bottom of the shell is provided with a lock hook in rotating connection, a linkage mechanism is arranged between the gear and the lock hook, the linkage mechanism comprises a rack meshed with the gear, the rack is provided with a guide hole, the bottom surface of the guide hole comprises a first horizontal plane, a downward inclined guide inclined plane and a second horizontal plane which are sequentially connected, a sliding block is arranged between the guide hole and the lock hook, a first guide rod is arranged on the sliding block, the first guide rod is positioned on the first horizontal plane, and the top of the sliding block is provided with a pressure spring; the lock hook comprises a rotating plate, a first blocking rod is arranged on the rotating plate, a second blocking rod and a third blocking rod are respectively arranged on two sides of the first blocking rod, and a first torsion spring is arranged on the third blocking rod; the shell is provided with a locking mechanism which is connected in a rotating way, and the locking mechanism is positioned on one side of the third gear lever. The invention has the advantages of simple operation and good locking force.

Description

Convenient operation's shutter door ground lock

Technical Field

The invention belongs to the field of ground locks of rolling doors, and particularly relates to a ground lock of a rolling door, which is convenient and fast to operate.

Background

The rolling gate ground lock (ground lock for short) is arranged at the lower end of the rolling gate and is matched with a lock catch rod which is arranged below the rolling gate and fixed with the ground, so that the rolling gate is locked. The structure of the ground lock comprises a shell, wherein a lock body is arranged on the shell, a gear is arranged on the lock body, a lock hook in rotating connection is arranged at the bottom of the shell, and a linkage mechanism is arranged between the gear and the lock hook. Insert the key to the lock body, the forward rotation key, the gear can take place rotatoryly, and the gear passes through the link gear and drives latch hook forward rotation, makes the latch hook catch the hasp pole, makes the shutter door shutting, and is corresponding, and when the key counter-rotation, gear accessible link gear drives latch hook counter-rotation, makes latch hook and hasp pole break away from, and the shutter door can upwards rise and open. In addition, for preventing that shutter door from receiving the vibration factor influence and leading to latch hook and hasp pole unexpected the breaking away from under the shutting state, still be equipped with the spring that provides the pretightning force on the latch hook, the elasticity of spring forces the reliable hasp pole that catches on of latch hook. When the user opens the shutter door, the key inserts the lock body, rotates, makes latch hook and hasp pole separation back, can not directly extract, otherwise the latch hook can catch on the hasp pole automatically under the spring action, leads to the shutter door can't open, the user need with the shutter door one end distance that rises earlier, make the latch hook be completely in hasp pole top, even the positive rotation key latch hook also can't catch on the hasp pole after, just can extract the key, this has just brought the trouble for the operation. Therefore, the existing rolling door ground lock has the defect of troublesome operation.

Disclosure of Invention

The invention aims to provide a rolling door ground lock which is convenient and fast to operate. The invention has the advantages of simple operation and good locking force.

The technical scheme of the invention is as follows: the rolling gate ground lock convenient to operate comprises a key and a shell, wherein a lock body matched with the key is arranged on the shell, a gear is arranged on the lock body, a lock hook which is connected in a rotating mode is arranged at the bottom of the shell, a linkage mechanism is arranged between the gear and the lock hook and comprises a rack meshed with the gear, the rack is connected with the shell in a horizontal and upward sliding mode, a guide hole is formed in the rack and is located above the lock hook, the bottom surface of the guide hole comprises a first horizontal plane, a guide inclined plane and a second horizontal plane which are connected in sequence, a sliding block is arranged between the guide hole and the lock hook and is connected with the shell in a vertical sliding mode, a first guide rod penetrating through the guide hole is arranged on the sliding block and located on the second horizontal plane, and a pressure spring connected with a top plate of the shell is arranged at the top of the sliding block;

the lock hook comprises a rotating plate which is rotationally connected with the shell, a first blocking rod is arranged on the rotating plate, a second blocking rod and a third blocking rod are respectively arranged on two sides of the first blocking rod, a lock groove is formed among the rotating plate, the first blocking rod and the second blocking rod, and a first torsion spring which is connected with the shell is arranged on the third blocking rod;

the shell is provided with a locking mechanism in rotary connection, and the locking mechanism is positioned on one side of the third gear lever; the shell is formed by sheet metal, and the thickness of the shell is 0.8-3 mm.

In the shutter door lock of aforesaid simple operation, the bottom of casing is the lower convex part that forms of swelling downwards, and the bottom surface opening of lower convex part is equipped with the notch on the lateral wall of lower convex part, the deflector rotates with the lateral wall of lower convex part through first round pin axle and is connected, first torsion spring cover is epaxial at first round pin, and the one end and the lower convex part of first torsion spring are connected, and the other end and the third shelves pole of first torsion spring are connected.

In the aforementioned shutter door ground lock of simple operation, be equipped with a plurality of levels to first slot hole on the casing, be equipped with the second guide bar fixed with the casing in the first slot hole.

In the aforementioned rolling gate ground lock convenient and fast to operate, at least two vertical second long holes are formed in the shell, the first guide rod is located in one of the second long holes, and third guide rods fixed with the sliding blocks are arranged in the rest second long holes.

In the aforementioned rolling gate ground lock convenient and fast to operate, the two sides of the notch are both provided with the symmetrically distributed lock hooks, and one side of one lock hook is provided with the locking mechanism.

In the aforementioned rolling gate ground lock convenient and fast to operate, the linkage mechanisms are two and are respectively located on two sides of the gear, and each linkage mechanism is correspondingly connected with two lock hooks.

In aforementioned simple operation's shutter door ground lock, locking mechanism is including the last rotor that is located slider one side, the upper end of going up the rotor is the arc surface, go up the rotor and rotate with the casing through the second round pin axle and be connected, the one side of going up the rotor is equipped with the lower rotor of being connected with second round pin axle rotation, one side of going up the rotor lower extreme is bent and is formed first splint, one side of first splint is equipped with the second splint fixed with lower rotor, the epaxial second torsional spring and the third torsional spring that are equipped with of second round pin, the outside that is located first splint is outwards stretched out to the one end straight line of second torsional spring, the outside that is located the second splint is outwards stretched out to the other end straight line of second torsional spring, the outside straight line of one end of third torsional spring stretches out, one side of the one end of third torsional spring is equipped with the third round pin axle fixed with the casing, the other end of third torsional spring is connected with the one end of second torsional spring.

In the above-mentioned simple operation's shutter door ground lock, the upper end of going up the rotor is equipped with the arc surface.

Compared with the prior art, the automatic locking device has the function of automatic locking, namely, a key is not needed in the process of closing the shutter door, so that the operation of the automatic locking device is simple; the user only needs to insert the key and directly rotate forward and backward to pull out the key, so that the unlocking of the invention is completed, the user can directly open the rolling door without lifting the rolling door by a distance first and then pulling out the key, and the operation of the invention is simple. In addition, the locking force of the ground lock is good through the optimization of the structure. Therefore, the invention has the advantages of simple operation and good locking force.

Drawings

Fig. 1 is a schematic structural view of the present invention.

Fig. 2 is an enlarged view of fig. 1 at a.

Fig. 3 is a schematic view of the present invention with the shutter door pulled down.

Fig. 4 is a schematic view of the shutter door being pulled down and the key being rotated forward by the user.

Fig. 5 is a schematic view of the shutter door being pulled down and the key being reversed by the user.

Fig. 6 is a structural schematic diagram of the second torsion spring and the third torsion spring.

The labels in the figures are: 1-housing, 2-lock, 3-gear, 4-latch, 5-rack, 6-guide hole, 7-first horizontal plane, 8-guide slope, 9-second horizontal plane, 10-slider, 11-first guide bar, 12-compression spring, 13-rotating plate, 14-first bar, 15-second bar, 16-third bar, 17-lock groove, 18-first torsion spring, 19-lower convex part, 20-notch, 21-first pin, 22-first long hole, 23-second guide bar, 24-second long hole, 25-third guide bar, 26-upper rotating plate, 27-second pin, 28-lower rotating plate, 29-first clamping plate, 30-second clamping plate, 31-second torsion spring, 32-third torsion spring, 33-third pin shaft, 34-lock catch lever, 35-ground and 36-box body.

Detailed Description

The invention is further illustrated by the following figures and examples, which are not to be construed as limiting the invention.

Examples are given. A rolling door ground lock convenient to operate is shown in figures 1 and 2 and comprises a key and a shell 1 in a square tube state, wherein a lock body 2 matched with the key is arranged on the shell 1, a gear 3 is arranged on the lock body 2, a lock hook 4 connected in a rotating mode is arranged at the bottom of the shell 1, and a linkage mechanism is arranged between the gear 3 and the lock hook 4 and is characterized in that the linkage mechanism comprises a rack 5 meshed with the gear 3, the rack 5 is connected with the shell 1 in a horizontal and upward sliding mode, a guide hole 6 is arranged on the rack 5, the guide hole 6 is positioned above the lock hook 4, the top surface of the guide hole 6 is a horizontal plane, the bottom surface of the guide hole 6 comprises a first horizontal plane 7, a guide inclined plane 8 and a second horizontal plane 9 which are connected in sequence, a sliding block 10 is arranged between the guide hole 6 and the lock hook 4, the sliding block 10 is connected with the shell 1 in a vertical sliding mode, and a first guide rod 11 penetrating through the guide hole 6 is arranged on the sliding block 10, the first guide rod 11 is positioned on the second horizontal plane 9, and the top of the sliding block 10 is provided with a pressure spring 12 connected with the top plate of the shell 1;

the lock hook 4 comprises a rotating plate 13 rotationally connected with the shell 1, a first gear rod 14 is arranged on the rotating plate 13, a second gear rod 15 and a third gear rod 16 are respectively arranged on two sides of the first gear rod 14, a lock groove 17 is formed among the rotating plate 13, the first gear rod 14 and the second gear rod 15, and a first torsion spring 18 connected with the shell 1 is arranged on the third gear rod 16;

be equipped with the locking mechanism who rotates the connection on casing 1, locking mechanism is located one side of third shelves pole 16, casing 1 is by the sheet metal shaping, and casing 1's thickness 0.8, 1.5 or 3 mm.

The bottom of the shell 1 is bulged downwards to form a lower convex portion 19, the bottom surface of the lower convex portion 19 is open, notches 20 are formed in the front side wall and the rear side wall of the lower convex portion 19, the rotating plate 13 is rotatably connected with the side wall of the lower convex portion 19 through a first pin shaft 21, the first torsion spring 18 is sleeved on the first pin shaft 21, one end of the first torsion spring 18 is connected with the side wall of the lower convex portion 19, the other end of the first torsion spring 18 is connected with the third gear lever 16, and the first torsion spring 18 enables the third gear lever 16 to have downward rotating elasticity. In the initial state, the first torsion spring 18 causes the second shift lever 15 to abut on the side wall of the lower convex portion 19.

A plurality of horizontal first long holes 22 are formed in the shell 1, and second guide rods 23 fixed with the shell 1 are arranged in the first long holes 22.

Two vertical second long holes 24 are formed in the shell 1, the first guide rod 11 is located in one of the second long holes 24, and a third guide rod 25 fixed with the sliding block 10 is arranged in the other second long hole 24.

The two sides of the notch 20 are provided with symmetrically distributed latch hooks 4, the two latch hooks 4 are staggered from front to back, interference is avoided, and one side of one latch hook 4 is provided with a locking mechanism.

The linkage mechanisms are two and are respectively positioned on two sides of the gear 3, and each linkage mechanism is correspondingly connected with two lock hooks 4.

Locking mechanism is including the last rotor 26 that is located slider 10 one side, the upper end of going up rotor 26 is the arc surface, it is connected with casing 1 rotation through second round pin axle 27 to go up rotor 26, the one side of going up rotor 26 is equipped with rotates the lower rotor 28 of being connected with second round pin axle 27, second round pin axle 27 passes last rotor 26 and lower rotor 28 in proper order, one side of going up the rotor 26 lower extreme is bent and is formed first splint 29, the outside of first splint 29 is equipped with the second splint 30 of fixing with lower rotor 28, be equipped with second torsional spring 31 and third torsional spring 32 on the second round pin axle 27, the outside that is located first splint 29 is outwards stretched out to the one end straight line of second torsional spring 31, the outside that is located second splint 30 is outwards stretched out to the other end straight line of second torsional spring 31, the outside straight line of one end of third torsional spring 32 stretches out, one side of one end of third torsional spring 32 is equipped with the third round pin axle 33 fixed with casing 1, the other end and the one end of second torsional spring 31 are connected. The second torsion spring 31 has a pre-tightening force, so that the first clamping plate 29 and the second clamping plate 30 are clamped, and the angle between the upper rotating plate 26 and the lower rotating plate 28 is fixed. The second torsion spring 31 and the third torsion spring 32 are formed by winding the same spring wire, and the shape is shown in fig. 3.

The upper end of the upper rotating sheet 26 is provided with a circular arc surface.

The working principle is as follows: as shown in fig. 1 and 2, the present invention is fixed at the lower end of the rolling door, a box body 36 with an open top is embedded on the ground 35 corresponding to the lower protrusion 19, and a lock catch rod 34 is arranged in the box body 36.

As shown in fig. 3, when the rolling shutter door is pulled down, the lower protrusion 19 is correspondingly inserted into the box 36, the latch lever 34 passes over the second lever 15 to contact the first lever 14, the first lever 14 pushes the latch hook 4 to rotate under the blocking action of the latch lever 34, and the second lever 15 is turned over to the lower side of the latch lever 34, so that the latch lever 34 is located in the lock slot 17. In the rotating process of the locking hook 4, the third stopper rod 16 meets the lower rotor 28 and pushes the lower rotor 28 to rotate, the lower rotor 28 drives the upper rotor 26 to rotate simultaneously under the action of the second torsion spring 31, the upper rotor 26 is firmly abutted to the first guide rod 11, one end of the third torsion spring 32 is contacted and firmly abutted to the third pin 33, the elasticity of the third torsion spring 32 is continuously increased, when the elasticity of the third torsion spring 32 exceeds the pretightening force of the second torsion spring 31, the upper rotor 26 does not continue to rotate, the lower rotor 28 continues to rotate, and the included angle between the upper rotor 26 and the lower rotor 28 is changed. During rotation of the shackle 4, the first torsion spring 18 is twisted and the spring force increases. In the process of rotating the lock hook 4, the third gear lever 16 is turned upwards to push the slider 10 to move upwards, the compression spring 12 is compressed, after the third gear lever 16 rotates and passes over the slider 10, the slider 10 moves downwards under the action of the compression spring 12, the slider 10 is positioned between the two third gear levers 16, the third gear lever 16 is prevented from rotating downwards, and self-locking is completed. In the process that the slider 10 moves upward and then downward, the first guide rod 11 moves upward from the side wall of the upper rotating piece 26 to the arc surface of the upper rotating piece 26, and then moves downward from the arc surface of the upper rotating piece 26 to the side wall, and the corresponding upper rotating piece 26 swings to some extent under the pushing action of the first guide rod 11.

As shown in fig. 4, when the shutter door is opened, the key is inserted into the lock body 2, and the key is rotated in the forward direction and then in the reverse direction. When the key rotates forwards, the lock body 2 enables the gear 3 to rotate forwards, the gear 3 drives the rack 5 to move outwards, in the moving process of the rack 5, the first guide rod 11 sequentially passes through the second horizontal plane 9 and the guide inclined plane 8 to reach the first horizontal plane 7, the first guide rod 11 rises upwards, the side wall of the upper rotating piece 26 is transferred to the arc surface of the upper rotating piece 26, and the first guide rod 11 drives the sliding block 10 to rise upwards. As shown in fig. 5, when the key is turned reversely, the rack 5 moves inward, the first guide rod 11 is supported by the arc surface of the upper rotating piece 26 and does not fall down, the height is kept unchanged, at this time, the key can be pulled out to lift the rolling door upward, in the process of lifting the rolling door, the lock catch lever 34 pushes the lock hook 4 to rotate through the second blocking lever 15, the third blocking lever 16 is turned downward and is positioned below the slider 10, the lower rotating piece 28 is turned downward by the action of the second torsion spring 31, the upper rotating piece 26 is turned upward by the action of the lower rotating piece 28, the arc surface of the upper rotating piece 26 passes over the first guide rod 11, the first guide rod 11 is not supported by the upper rotating piece 26, the slider 10 falls down by the action of the compression spring 12, and the state of the ground lock is restored to fig. 2.

The invention has the advantages of simple operation and good locking force. The invention also has the advantages of lower ground lock failure rate and higher reliability through the optimization of the structure.

Claims

1. Shutter door ground lock of simple operation, including key and casing (1), be equipped with on casing (1) with the supporting lock body (2) of key, be equipped with gear (3) on lock body (2), the bottom of casing (1) is equipped with latch hook (4) of rotating the connection, is equipped with link gear, its characterized in that between gear (3) and latch hook (4): the linkage mechanism comprises a rack (5) meshed with the gear (3), the rack (5) is connected with the shell (1) in a horizontally upward sliding mode, a guide hole (6) is formed in the rack (5), the guide hole (6) is located above the lock hook (4), the bottom surface of the guide hole (6) comprises a first horizontal plane (7), a downward inclined guide inclined plane (8) and a second horizontal plane (9) which are sequentially connected, a sliding block (10) is arranged between the guide hole (6) and the lock hook (4), the sliding block (10) is connected with the shell (1) in a vertical sliding mode, a first guide rod (11) penetrating through the guide hole (6) is arranged on the sliding block (10), the first guide rod (11) is located on the second horizontal plane (9), and a pressure spring (12) connected with the top plate of the shell (1) is arranged at the top of the sliding block (10);

the lock hook (4) comprises a rotating plate (13) rotatably connected with the shell (1), a first blocking rod (14) is arranged on the rotating plate (13), a second blocking rod (15) and a third blocking rod (16) are respectively arranged on two sides of the first blocking rod (14), a lock groove (17) is formed among the rotating plate (13), the first blocking rod (14) and the second blocking rod (15), and a first torsion spring (18) connected with the shell (1) is arranged on the third blocking rod (16);

a locking mechanism in rotary connection is arranged on the shell (1), the locking mechanism is positioned on one side of the third gear lever (16), the shell (1) is formed by sheet metal, and the thickness of the shell (1) is 0.8-3 mm;

the bottom of the shell (1) is bulged downwards to form a lower convex part (19), the bottom surface of the lower convex part (19) is open, a notch (20) is formed in the side wall of the lower convex part (19), the rotating plate (13) is rotatably connected with the side wall of the lower convex part (19) through a first pin shaft (21), the first torsion spring (18) is sleeved on the first pin shaft (21), one end of the first torsion spring (18) is connected with the lower convex part (19), and the other end of the first torsion spring (18) is connected with the third gear lever (16);

two sides of the notch (20) are respectively provided with symmetrically distributed lock hooks (4), and one side of one lock hook (4) is provided with a locking mechanism;

the locking mechanism comprises an upper rotating sheet (26) positioned on one side of the sliding block (10), the upper end of the upper rotating sheet (26) is an arc surface, the upper rotating sheet (26) is rotatably connected with the shell (1) through a second pin shaft (27), a lower rotating sheet (28) rotatably connected with the second pin shaft (27) is arranged on one side of the upper rotating sheet (26), one side of the lower end of the upper rotating sheet (26) is bent to form a first clamping plate (29), a second clamping plate (30) fixed with the lower rotating sheet (28) is arranged on one side of the first clamping plate (29), a second torsion spring (31) and a third torsion spring (32) are arranged on the second pin shaft (27), one end of the second torsion spring (31) linearly and outwardly extends out to be positioned on the outer side of the first clamping plate (29), the other end of the second torsion spring (31) linearly and outwardly extends out to be positioned on the outer side of the second clamping plate (30), one end of the third torsion spring (32) linearly and one side of one end of the third torsion spring (32) is provided with a third pin shaft (33) fixed with the shell (1), the other end of the third torsion spring (32) is connected with one end of the second torsion spring (31).

2. The roll-gate floor lock of claim 1, wherein: the shell (1) is provided with a plurality of horizontal first long holes (22), and second guide rods (23) fixed with the shell (1) are arranged in the first long holes (22).

3. The roll-gate floor lock of claim 1, wherein: the shell (1) is provided with at least two vertical second long holes (24), the first guide rod (11) is located in one of the second long holes (24), and third guide rods (25) fixed with the sliding blocks (10) are arranged in the rest second long holes (24).

4. The roll-gate floor lock of claim 1, wherein: the two linkage mechanisms are respectively positioned on two sides of the gear (3), and each linkage mechanism is correspondingly connected with the two lock hooks (4).

5. The roll-gate floor lock of claim 1, wherein: the upper end of the upper rotating sheet (26) is provided with an arc surface.