CN112360232A

CN112360232A - Triangular lock device

Info

Publication number: CN112360232A
Application number: CN202011357438.7A
Authority: CN
Inventors: 张灵; 林贤庆; 邹玮; 张润祖; 侯应浩
Original assignee: Guangzhou Guangri Elevator Industry Co Ltd
Current assignee: Guangzhou Guangri Elevator Industry Co Ltd
Priority date: 2020-11-27
Filing date: 2020-11-27
Publication date: 2021-02-12

Abstract

The invention discloses a triangular lock device, which comprises a lock and a key which are matched with each other, wherein the lock comprises a lock body, a lock core and an anti-falling mechanism; the lock body is provided with a lock hole penetrating through two ends of the lock body, the side wall of the lock body is further provided with a through groove communicating with the lock hole, one end of the lock cylinder is rotatably embedded in the lock hole, the anti-disengaging mechanism comprises an elastic clamping piece which is telescopically arranged in the through groove and a card shifting device which is fixedly arranged on the lock cylinder, and the card shifting device pushes the elastic clamping piece along with the rotation of the lock cylinder to enable the elastic clamping piece to extend into the lock hole to limit the key to be disengaged. This triangular lock device has increased the anti-disengaging mechanism that the restriction key is deviate from, has the function that keeps the key unable to deviate from under the state of opening the tool to lock, can regard as the device use of opening electric trigger switch. And other locksets that the elevator adopted also are current triangular locks, realize the effect of the triangular lock sharing a key on each structure of elevator, reduce the key kind, promote the efficiency of overhauing, maintaining.

Description

Triangular lock device

Technical Field

The invention belongs to the field of elevator equipment, and particularly relates to a triangular lock device.

Background

As a special equipment, an elevator is specified to use a special triangular lock for a lock. Generally, the elevator safety door is used on structures such as landing doors, safety windows, control cabinets and the like of the elevator. However, the functional requirements of a cam lock as a means for opening an electrically triggered switch are different. The key is required to be inserted into the lock hole and rotated to the position where the trigger switch is opened, and the key is kept from being separated in the process of operations such as maintenance, repair and the like, so that the condition that the trigger switch cannot be reset due to the separation of the key is prevented, and the running safety of the elevator is threatened.

The existing triangular lock cannot provide the function of keeping the key from being separated, and if the pin tumbler lock is adopted, the key of the pin tumbler lock is different from that of the triangular lock, so that the pin tumbler lock cannot share the key with other triangular locks on the elevator, the types of the keys are increased, and the overhauling and maintaining efficiency is influenced.

Disclosure of Invention

The present invention is directed to a cam lock device, which has a function of restricting a key from being disengaged from a lock, so that the key in the cam lock device cannot be directly removed once the key is inserted into a lock hole and rotated to a position for opening a trigger switch, and the key can be removed only after the trigger switch is turned off by rotating the key in a reverse direction. The problem of the factor of safety that causes the elevator operation reduces because of reasons such as maloperation, forgetting or unexpected the dropping of key is avoided.

The invention is realized by the following technical scheme:

a triangular lock device comprises a lock body, a lock core and an anti-falling mechanism, wherein the lock body and a key are matched with each other; the lock body is provided with a lock hole penetrating through two ends of the lock body, the side wall of the lock body is further provided with a through groove communicating with the lock hole, one end of the lock cylinder is rotatably embedded in the lock hole, the anti-disengaging mechanism comprises an elastic clamping piece which is telescopically arranged in the through groove and a card shifting device which is fixedly arranged on the lock cylinder, and the card shifting device pushes the elastic clamping piece along with the rotation of the lock cylinder to enable the elastic clamping piece to extend into the lock hole to limit the key to be disengaged.

Through the scheme, the invention at least obtains the following technical effects:

the key is inserted into the lock hole and connected with the lock cylinder, the key is rotated to enable the lock cylinder to rotate and drive the card shifting device to rotate synchronously, the card shifting device is in contact with one end, protruding out of the side wall of the lock body, of the elastic clamping piece in the rotating process and pushes the elastic clamping piece towards the through groove, the elastic clamping piece extends into the lock hole to clamp the key, and the key is prevented from falling out of the lock hole.

Preferably, the elastic clamping piece comprises a clamping piece and a spring; the card is telescopically arranged in the through groove, a bump is arranged on the surface of the card, the spring is arranged along the telescopic direction of the card, one end of the spring is connected to the bump, and the other end of the spring is connected to the through groove.

Preferably, the end face of the clamping piece protruding out of the side wall of the lock body is a convex arc face.

Preferably, the card poking device comprises a fixed beam and a top block; the ejector block is connected with the lock cylinder through the fixed beam and is suspended on the side of the lock body, and the side wall of the ejector block, facing the lock body, is a guide inclined plane or a guide arc surface and is in tangential contact with the clamping piece.

Preferably, the key comprises a handle body, a rod body and a jogged head which are connected in sequence; the embedding head is provided with a triangular groove used for being connected with the lock cylinder in a matched mode, the diameter of the rod body is smaller than that of the embedding head, a clamping hoop position is formed at the joint of the rod body and the embedding head, and the clamping piece abuts against the clamping hoop position to limit the key to be separated.

Preferably, the lock cylinder comprises a lock rod and a triangular head arranged at one end of the lock rod, the lock rod is a quadrangular prism, two opposite side surfaces of the lock rod are planes, and the other two opposite side surfaces of the lock rod are convex arc surfaces and are provided with threads.

Preferably, the lockset further comprises a trigger shifting piece, and a strip-shaped groove is formed in the trigger shifting piece; the locking rod passes through the strip-shaped groove, two plane side walls of the locking rod correspond to two inner walls of the strip-shaped groove, and the trigger shifting piece is fixed on the locking rod through two nuts.

Preferably, the end of the card extending into the lock hole is provided with an arc-shaped groove.

Preferably, a limiting block is embedded in the lock hole, and one end of the lock cylinder is embedded into the limiting block and used for limiting the rotation angle of the lock cylinder.

Preferably, the edge of the end face of the lock body is provided with an outward flange, the outer wall of the lock body is further sleeved with a fastening piece, and the fastening piece is matched with the outward flange to fix the lock body.

The invention has the beneficial effects that:

this triangular lock device has increased the anti-disengaging mechanism that the restriction key is deviate from, has the function that keeps the key unable to deviate from under the state of opening the tool to lock, can regard as the device use of opening electric trigger switch. And other locksets that the elevator adopted also are current triangular locks, realize the effect of the triangular lock sharing a key on each structure of elevator, reduce the key kind, promote the efficiency of overhauing, maintaining.

Drawings

Fig. 1 is a schematic view illustrating a state of a key and a lock according to an embodiment of the present invention.

Fig. 2 is a schematic view of a lock assembly structure according to an embodiment of the present invention.

Fig. 3 is a schematic perspective view of a key according to an embodiment of the present invention.

Fig. 4 is a perspective view of a triangular lock device in a closed state according to an embodiment of the present invention.

Fig. 5 is a perspective view illustrating an unlocked state of a triangular lock device according to an embodiment of the present invention.

FIG. 6 is a cross-sectional view of an unlocked position of a cam lock device according to an embodiment of the present invention

Legend:

1, a lockset; 2, a key; 3, a surface plate body;

11 a lock body; 12 lock cylinders; 13 an anti-drop mechanism; 14 trigger shifting piece

21 a shank body; 22 rod bodies; 23 a fitting head; 24 clamp positions;

111 a lock hole; 112 through grooves; 113 a limiting block; 114, flanging; 115 fastening tabs;

121 lock bar; 122 triangular heads;

131 elastic clamping pieces; 132 a card dialer;

141 a strip groove;

1311 a card; 1312 a spring; 1313 bumps; 1314 arc-shaped slots;

1321 a fixed beam; 1322 the top block.

Detailed Description

The invention is further illustrated by the following figures and examples.

Example 1:

as shown in fig. 1, 2, 4 and 5, the present embodiment provides a triangular lock device, which is composed of a lock 1 and a key 2. The lockset 1 comprises a lock body 11, a lock cylinder 12 and an anti-falling mechanism 13; the lock body 11 is provided with a lock hole 111 with two through ends, one end of the lock cylinder 12 with a triangular head 122 is rotatably arranged in the lock hole 111, and after the key 2 is inserted into the lock hole 111, the triangular groove on the key 2 can be matched with the triangular head 122 on the lock cylinder 12. The anti-disengaging mechanism 13 is composed of a card-dialing device 132 installed on the lock cylinder 12 and an elastic card 131 arranged on the lock body 11, a through groove 112 communicated with the lock hole 111 is formed in the side wall of the lock body 11, the elastic card 131 is telescopically embedded into the through groove 112, the card-dialing device 132 synchronously rotates with the lock cylinder 12 and contacts with the elastic card 131 outside the lock body 11, the elastic card 131 is pushed towards the lock hole 111 along the through groove 112 in the rotation process of the card-dialing device 132, and the elastic card 131 extends into the lock hole 111 to clamp and restrain the key 2, so that the key 2 is prevented from disengaging.

As shown in fig. 2, the elastic latch 131 is formed by combining a latch 1311 and a spring 1312; the card 1311 is plate-shaped, and the end surface of the card 1311 protruding out of the outer wall of the lock body 11 is a convex arc surface, so that the process of contacting the card shifting device 132 with the card 1311 is smoother, and the problem that the card shifting device 132 is unable to push the card 1311 into the lock hole 111 because the card shifting device 132 is blocked by the edge of the card 1311 is avoided, which causes the key 2 to be unable to rotate. The surface of the card 1311 is provided with bumps 1313 for mounting the spring 1312. The spring 1312 is disposed along the direction of the expansion and contraction movement of the card 1311, and has one end connected to the protrusion 1313 and the other end fixed in the through slot 112 for restoring the card 1311.

As shown in fig. 2, the card puller 132 is composed of a fixed beam 1321 and a top block 1322; the fixed beam 1321 is a bent strip-shaped structure, one end of the fixed beam is fixed on the lock cylinder 12, the other end of the fixed beam is fixedly connected with the top block 1322, the top block 1322 is suspended on the side of the lock body 11 through the bent shape of the fixed beam 1321, and the top block 1322 and the clamping piece 1311 are positioned in the same plane perpendicular to the central axis of the lock cylinder 12. The side wall of the top piece 1322 facing the lock body 11 is a guiding inclined surface or a guiding arc surface,

as shown in fig. 5, when the key 2 is inserted into the lock hole 111 and rotates forward to unlock the lock 1, the card extractor 132 rotates synchronously with the lock cylinder 12, during the rotation process, the inclined surface of the top block 1322 of the card extractor 132 contacts tangentially with the convex arc surface of the card 1311, and the tangential point between the inclined surface and the convex arc surface moves along the inclined surface and leans against the lock body 11, so as to achieve the effect of pushing the card 1311 into the lock hole 111 along the through groove 112, so as to limit the key 2 from coming out of the lock hole 111.

As shown in fig. 4, when the key 2 is rotated in the reverse direction to close the lock 1, the tangent point between the inclined surface of the top piece 1322 and the convex arc surface of the card 1311 moves along the inclined surface and away from the lock body 11 until the top piece 1322 is separated from the card 1311, and the card 1311 is ejected out of the through groove 112 and returns to the original position under the action of the elastic force of the spring 1312, and retracts into the lock hole 111, thereby releasing the restriction effect on the key 2.

It should be noted that, as shown in fig. 1, fig. 2, fig. 4, fig. 5 and fig. 6, in order to improve the anti-disengaging effect of the key 2, two through grooves 112 are symmetrically formed on the side wall of the lock body 11, two elastic clamping pieces 131 are respectively disposed in the two through grooves 112, and two symmetrical card shifting devices 132 respectively push the two elastic clamping pieces 131, so that the two elastic clamping pieces 131 simultaneously clamp the key 2 from two sides to prevent the key from disengaging from the lock hole 111.

Example 2:

as shown in fig. 2, 3 and 6, in this embodiment, on the basis of embodiment 1, the structure of the key 2 and the structure of the card 1311 are improved, so that the two are more closely matched, the effect of the card 1311 on restraining the key 2 is improved, the key 2 is more stably limited in the keyhole 111, and the key 2 is prevented from falling off due to accidental shock or scratch.

As shown in fig. 3 and 6, the key 2 is formed by sequentially connecting a handle 21, a rod 22 and an engaging head 23 with a triangular groove, wherein the engaging head 23 and the rod 22 are both cylinders, central axes of the two bodies are overlapped and linearly aligned, a diameter of the engaging head 23 is larger than a diameter of the rod 22, a stepped or ramp-shaped clamp 24 is formed at a joint of the two bodies due to a size difference, and after the card 1311 is pushed by the card shifting device 132, an end portion of the card 1311 extending into the lock hole 111 pushes against the clamp 24, so that the engaging head 23 with a larger diameter is restricted by the card 1311 and cannot be pulled out from the lock hole 111, and the effect of preventing the key 2 from being pulled out is achieved.

As shown in fig. 2 and fig. 6, an arc-shaped groove 1314 is formed at one end of the locking plate 1311 extending into the locking hole 111, so that the arc-shaped groove 1314 is buckled with the rod 22 or buckled with the joint of the rod 22 and the embedding head 23 to form circumferential constraint, which not only improves the anti-falling effect of the key 2, but also improves the stability of the key 2 in the locking hole 111.

Example 3:

as shown in fig. 1, 2 and 6, in this embodiment, based on embodiment 1 or embodiment 2, a partial structure of the lock 1 is improved, and the effect of the triangular lock device is optimized.

As shown in fig. 2, the key cylinder 12 is composed of a lock bar 121 and a triangular head 122 provided at an end of the lock bar 121; the locking bar 121 is a quadrangular prism, wherein two opposite sidewalls of the locking bar 121 are flat surfaces, and the other two opposite sidewalls are convex arc surfaces. The locking bar 121 may be formed of two parallel plane cut cylinders. The side walls of the two convex cambered surfaces are provided with continuous threads for matching nuts, and the side walls of the two planes are used for providing a rotation limiting effect.

As shown in fig. 2, the lock 1 further includes a trigger pulling piece 14, and the trigger pulling piece 14 is provided with a strip-shaped groove 141. During installation, after the end of the lock rod 121 is sleeved with the first nut, the end of the lock rod 121 passes through the strip-shaped groove 141, and then the end of the lock rod 121 is sleeved with the second nut, so that an effect that the two nuts are clamped at two sides of the trigger shifting piece 14 is formed, and the trigger shifting piece 14 is fixed on the lock rod 121 by screwing the two nuts. The two planar side walls of the lock rod 121 correspond to the two inner walls of the strip-shaped groove 141, so that the lock rod 121 can smoothly pass through the strip-shaped groove 141, the effect of torque transmission can be achieved by abutting the two planar side walls against the inner walls of the strip-shaped groove 141, the self-rotation motion of the lock rod 121 is converted into the motion of the trigger shifting piece 14 rotating around the lock rod 121, and the trigger shifting piece 14 is used for triggering a switch.

As shown in fig. 2, a limiting block 113 is disposed in the lock hole 111 for limiting a rotation angle of the key cylinder 12, so that each time the key 2 is rotated to unlock the lock 1, the rotation angle of the key 2 is the same, so as to ensure that the card puller 132 is stably engaged with the card 1311. The lock body 11 and the stopper 113 may be integrally molded.

As shown in fig. 1 and 6, when the triangular lock is installed, the entire lock 1 is inserted into the lock installation structure, and only the lock hole 111 is left in the surface plate 3, and the surface plate 3 serves as an installation carrier and a protective layer of the lock 1. In order to improve the installation stability and the sealing effect of the lockset 1, the edge of the end surface of the exposed lock body 11 extends outwards to form an outward flange 114 outside the lock installation structure, and the outward flange is covered and pressed on the outer surface of the surface plate body 3; meanwhile, in the lock mounting structure, the fastening plate 115 is sleeved on the lock body 11, the fastening plate 115 is abutted to the inner surface of the surface plate body 3, and the outward flange 114 and the fastening plate 115 are clamped on two sides of the surface plate body 3 in a matching manner, so that the stability and the sealing effect are enhanced.

Various technical features in the above embodiments may be arbitrarily combined as long as there is no conflict or contradiction in the combination between the features, but is limited to the space and is not described one by one.

The present invention is not limited to the above-described embodiments, and various changes and modifications of the present invention are intended to be included within the scope of the claims and the equivalent technology of the present invention if they do not depart from the spirit and scope of the present invention.

Claims

1. A device of a triangular lock is characterized in that: the anti-falling lock comprises a lock body, a lock core and an anti-falling mechanism, wherein the lock body, the lock core and the anti-falling mechanism are matched; the lock body is provided with a lock hole penetrating through two ends of the lock body, the side wall of the lock body is further provided with a through groove communicating with the lock hole, one end of the lock cylinder is rotatably embedded in the lock hole, the anti-disengaging mechanism comprises an elastic clamping piece which is telescopically arranged in the through groove and a card shifting device which is fixedly arranged on the lock cylinder, and the card shifting device pushes the elastic clamping piece along with the rotation of the lock cylinder to enable the elastic clamping piece to extend into the lock hole to limit the key to be disengaged.

2. The apparatus of claim 1, wherein said resilient latch comprises a catch and a spring; the card is telescopically arranged in the through groove, a bump is arranged on the surface of the card, the spring is arranged along the telescopic direction of the card, one end of the spring is connected to the bump, and the other end of the spring is connected to the through groove.

3. The apparatus of claim 2, wherein the end surface of the locking piece protruding from the side wall of the lock body is a convex arc surface.

4. The apparatus of claim 3, wherein the card puller comprises a fixed beam and a top block; the ejector block is connected with the lock cylinder through the fixed beam and is suspended on the side of the lock body, and the side wall of the ejector block, facing the lock body, is a guide inclined plane or a guide arc surface and is in tangential contact with the clamping piece.

5. The apparatus of claim 2, wherein the key comprises a shank, a bar and a fitting head connected in sequence; the embedding head is provided with a triangular groove used for being connected with the lock cylinder in a matched mode, the diameter of the rod body is smaller than that of the embedding head, a clamping hoop position is formed at the joint of the rod body and the embedding head, and the clamping piece abuts against the clamping hoop position to limit the key to be separated.

6. The apparatus of claim 5, wherein the lock cylinder comprises a lock bar and a triangular head disposed at one end of the lock bar, the lock bar is a quadrangular prism, two opposite sides thereof are flat surfaces, and the other two opposite sides thereof are convex arc surfaces and are formed with threads.

7. The device of claim 6, wherein the lock further comprises a trigger dial, and the trigger dial is provided with a strip-shaped groove; the locking rod passes through the strip-shaped groove, two plane side walls of the locking rod correspond to two inner walls of the strip-shaped groove, and the trigger shifting piece is fixed on the locking rod through two nuts.

8. The device of claim 5, wherein the end of the locking piece extending into the locking hole is provided with an arc-shaped slot.

9. The triangular lock device according to claim 1, wherein a limiting block is embedded in the lock hole, and one end of the lock cylinder is embedded in the limiting block and used for limiting the rotation angle of the lock cylinder.

10. The triangular lock device according to claim 1, wherein the lock body has an edge flange formed at an edge of an end surface thereof, and a fastening plate is further sleeved on an outer wall of the lock body, and the fastening plate is engaged with the edge flange to fix the lock body.