CN112218996A

CN112218996A - Equipment cabinet lock

Info

Publication number: CN112218996A
Application number: CN201880085176.8A
Authority: CN
Inventors: M.海利斯滕
Original assignee: Ablay Ltd
Current assignee: Ablay Ltd
Priority date: 2018-01-02
Filing date: 2018-12-03
Publication date: 2021-01-12
Anticipated expiration: 2038-12-03
Also published as: MX2020006989A; ZA202003506B; ES2779773R1; FI20185001A1; CN112218996B; FI130503B; ES2779773B2; ES2779773B8; ES2779773A2; BR112020009615B1; WO2019135023A1; BR112020009615A2; CO2020009421A2

Abstract

The equipment cabinet lock according to the invention has a better security level than previous equipment cabinet locks. The equipment cabinet lock (1) comprises a rotary latch (2) connected to a rotary shaft (3). The latch and the rotary shaft are arranged to rotate from a locked position to an open position and vice versa. The turning shaft (3) is connected to a key cylinder (4) arranged to transmit a force caused by the turning of the key to the turning shaft (3) in order to turn it and the latch (2). The equipment cabinet lock (1) further comprises a deadlock device (5) which is arranged to prevent the turning shaft (3) and the latch (2) from being turned to the open position in the deadlock position of the deadlock device (5). In addition, the compartment lock equipment cabinet lock (1) compares the control means (6A, 6B) for the deadlock means (5) to control the deadlock means from the deadlock position to the release position.

Description

Equipment cabinet lock

Technical Field

The present invention relates to a lock for an equipment cabinet, cubicle or other cabinet. Cubicles and cabinets are used, for example, in dressing rooms in schools as well as workplaces and sports arenas. In addition, they are used in, for example, power plants and telecommunications networks to protect machinery, i.e. in this case they are called equipment cabinets. In this context, equipment cabinet lock is also referred to as a lock of a compartment or other cabinet.

Background

Equipment cabinet locks are known to be equipped with a lock cylinder. The lock cylinder is turned open by an accessory key therein. In its simplest terms, the lock cylinder comprises an opening of a certain shape, in which a key of a corresponding shape fits. When the key is turned, the lock cylinder is turned, whereby the latch or latch controller attached to the rear end of the lock cylinder is turned from the closed position to the open position and vice versa. When the latch is in the open position, the cover of the equipment cabinet, cubicle or other cabinet can be rotated open. Thus, the key may for example be a spindle shaped in some way, and the lock cylinder thus has a corresponding shape. Or the key is a so-called coded key which has certain shapes and the lock cylinder has pins for these shapes. The shape of the key thus constitutes a specific code by means of which the pins of the plug can be turned to the release position and thus also the plug can be turned to the open position. The aim is to make the equipment cabinet locks as cost-effective as possible, thereby keeping their structure simple. A rotary latch attached to the lock cylinder is generally used as the locking element. Thus, the security level of the equipment cabinet lock does not have to be very good.

Disclosure of Invention

It is an object of the present invention to provide an equipment cabinet lock which is superior in security level to previous equipment cabinet locks. An additional object is to achieve an increase in the level of security in a cost-effective manner.

The equipment cabinet lock 1 according to the invention comprises a rotary latch 2 connected to a rotary shaft 3. The latch and the rotary shaft are arranged to rotate from a locked position to an open position and vice versa. The turning shaft 3 is connected to a key cylinder 4 arranged to transmit the force caused by the turning of the key to the turning shaft 3 in order to turn it and the latch 2. The equipment cabinet lock 1 further comprises a deadlock device 5 arranged to prevent the turning shaft 3 and the latch 2 from being turned to an open position in a deadlock position of the deadlock device 5. The deadlock 5 is arranged to be turned from the deadlock position to the release position and vice versa. The direction of movement of the deadlock 5 from the deadlock position to the release position is opposite compared to the direction of movement of the latch 2 from the locking position to the opening position. In addition, the equipment cabinet lock 1 comprises control means 6A, 6B for the deadlock means 5 to control the deadlock means from the deadlock position to the release position.

Drawings

In the following, the invention will be described in more detail with reference to the accompanying drawings, in which

Figure 1 shows an example of an equipment cabinet lock according to the invention,

figure 2 shows an example of an equipment cabinet lock that is a deadlock,

fig. 3 shows an example of an equipment cabinet lock according to the invention, wherein a deadlock is opened,

fig. 4 shows an example of an equipment cabinet lock according to the invention, where the latch is turned to the open position,

fig. 5 shows an example of an equipment cabinet lock according to the invention, where the deadlock is opened by electronic control and where the latch is turned to the open position,

fig. 6 shows an example of an equipment cabinet lock according to the invention, being a deadlock, where the electronic control is switched off,

fig. 7 shows an example of an equipment cabinet lock according to the invention, where a deadlock is opened by electronic control,

FIG. 8 shows an example of a deadlock locking arrangement of an equipment cabinet lock according to the invention, an

Figure 9 shows an example of a plate of a deadlock device.

Detailed Description

Fig. 1 shows an example of an equipment cabinet lock according to the invention. The equipment cabinet lock is mounted inside the lid/door of an equipment cabinet, compartment box or other cabinet. The cover or door has a hole for the

lock cylinder

4, 6A. Thus, fig. 1 shows the equipment cabinet lock from the side against the inner surface of the cover/door of the equipment cabinet, cubicle or other cabinet.

Figure 2 shows an example of an equipment cabinet lock that is a deadlock. The equipment cabinet lock 1 comprises a rotary latch 2 connected to a rotary shaft 3. The latch and the rotary shaft are arranged to rotate from a locked position to an open position and vice versa. The turning shaft 3 is connected to a key cylinder 4 which is arranged to transmit the force caused by the turning of the key to the turning shaft 3 in order to turn it and the latch 2. Therefore, lock cylinders are used with accessory keys known therein as such. The lock cylinder can be made in different ways. In the example of fig. 2, the plug is short and does not necessarily contain individual pins. The locking is based on the shape of the key opening and the core of the lock cylinder and the corresponding shape of the key. In the example of fig. 2, a turning shaft 3 is connected to the lock cylinder, which may also be a stationary part of the lock cylinder. It can also be seen from fig. 2 how the latch 2 can be attached to the turning shaft 3. In this example, the shaft has two straight surfaces 3A which transmit a rotational force from the shaft to the latch 2 via its opposing surfaces.

The equipment cabinet lock 1 further comprises a deadlock device 5 arranged to prevent the turning shaft 3 and the latch 2 from being turned to the open position in the deadlock position of the deadlock device 5. The deadlock 5 is arranged to be turned from a deadlock position to a release position and vice versa. Figure 8 illustrates one embodiment of a deadlock device in more detail.

The direction of movement of the deadlock 5 from the deadlock position to the release position is opposite compared to the direction of movement of the latch 2 from the locking position to the opening position. Thus, it is difficult or even impossible to manipulate the opening device cabinet lock. The equipment cabinet lock 1 further comprises control means 6A, 6B for the deadlock means 5 to control the deadlock means from the deadlock position to the release position.

As previously mentioned, FIG. 8 illustrates one embodiment of a deadlock device. The deadlock 5 comprises a plate 7. Figure 9 shows one embodiment of the plate in more detail. The deadlock means may also be, for example, a casting having a central hole and the projections extend from the central hole in different directions.

The plate is connected in a rotating manner to the rotating shaft 3 and the plate 7 has

control protrusions

7A, 7B and a deadlock surface 7C for the control means 6A, 6B of the deadlock means. The equipment cabinet lock further comprises a gear wheel 8 connected to the turning shaft 3 and arranged to turn with the turning shaft, and a rack 9 having opposite locking surfaces 9A for the deadlock surfaces 7C and a recess 9B in connection with the gear wheel 8. In fig. 8, the gear is only slightly visible behind the plate 7. The plate has a circular mounting hole 7E, whereby the plate 7 can be rotated with respect to the rotary shaft 3 regardless of the position of the rotary shaft. The illustrated figure shows an embodiment with a plate 7 having two

control tabs

7A, 7B, but embodiments with only one control tab may be formed. Embodiments of the invention may for example have both of the projections of the plate 7 missing. Thus, even though an embodiment with two control devices is shown in the figures, only one control device is used in the equipment cabinet lock.

In addition, the embodiment in the figures uses two

racks

9, 10, but embodiments with only one rack can be realized. In one rack embodiment, the plate 7 need only have one deadlock surface 7C. In the two rack embodiment, the plate 7 may have two

deadlock surfaces

7C, 7D. The plate thus has at least one deadlock surface.

The gear teeth enter the gap between the notches 9B of the rack 9, whereby the rack strives to move in a linear manner when the turning shaft 3 is turned (using the key via the lock cylinder). If the plate 7 or other embodiment of the deadlock device is in a deadlock position, its deadlock surface 7C (or 7D) abuts against the counter locking surface 9A (or 10A) of the rack, thereby preventing linear movement of the rack and also simultaneously preventing rotation of the turning shaft 3 and the latch 2. The equipment cabinet lock is thus deadlocked. As mentioned above, there may also be two racks in the equipment cabinet lock, and thus also two deadlock surfaces. The second rack 10 is also connected to the gear wheel 8 via its recess 10B.

In the embodiment of the figures with double notches in the rack, there are notches on both edges of the rack, but one notch is sufficient to provide the required operation. When a double recess is used, a second gear may also be provided for the rotation shaft. When double notches are used, the notches may overlap each other, as shown in the embodiments in the figures.

The toothed rack 9 (or 10) or

toothed racks

9, 10 need not be very long, but regardless of the position of the toothed rack, it or they may be completely inside the lock frame 1A of the equipment cabinet lock. This is illustrated in fig. 8 by dashed line 81. The rack (or racks) may also be so long that it extends beyond the lock frame 1A. Such a rack (or racks) may be used as or to control additional latches. Thus, the rack need not be notched over its entire length, but the rack 9 may comprise non-notched portions 9C, 10C extending beyond the lock frame 1A. Thus, in the embodiment according to the figures, there may be at least one additional latch or control for an additional latch in addition to the latch 2.

As previously mentioned, the plate may have a second deadlock surface 7D, whereby the deadlock means comprises a second rack 10 having a second opposite locking surface 10A for the second deadlock surface 7D and a second notch 10B in contact with the gear wheel 8. The second rack 10 may further include a non-notched portion 10C extending outside the lock frame 1A.

To open the deadlock, the equipment cabinet lock 1 also contains control means of the deadlock device 5. The control means may be the second key cylinder 6A or the electronic control device 6B. Fig. 2 to 4 show the use of the key cylinder 6A as a control device. Fig. 2 shows a situation in which the latch 2 locks the lid/door of an equipment cabinet, compartment or other cabinet. In addition, in this example, the

racks

9, 10 are used to control an additional latch, which is not shown in the figures. The free ends of the racks may also form additional latches if they are arranged in the frame of the compartment/cabinet during locking.

Second cylinder 6A is arranged to rotate plate 7 from the deadlock position to the release position when a second key in second cylinder 6A is turned. At the bottom of the second cylinder 6A there is a control shape 11 which controls the plate 7 via the control protrusion 7A when the second key, i.e. the key intended to be used in the second cylinder, is turned. Fig. 3 shows a situation in which the second key has been turned, which causes the turning of the control shape 11. In this example, the control shape is a peg.

When rotated, the control shape 11 simultaneously rotates the plate 7, whereby it is rotated away from the deadlock position. Thus, one or more deadlock surfaces 7C, 7D of the plate no longer abut against one or more locking racks and the key can be turned in the lock cylinder 4. As a result, the lock cylinder and its turning shaft or the turning shaft 3 connected thereto are turned, whereby the latch 2 and the gear 8 or gears connected to the turning shaft are also turned. The gear wheel in turn moves the

racks

9, 10, whereby the additional latch also moves out of the locking position. Fig. 4 illustrates such a case.

As can be seen from fig. 3 and 4, the direction of movement of the deadlock device 5, and more precisely of the plate 7 for opening the deadlock, is opposite to the direction of movement of the latch 2 towards the open position. This means that opening the equipment cabinet lock cannot be achieved by manipulating the latch or deadlocking plate. Thus, it is difficult or even impossible to manipulate the open lock. Because the direction of movement of the plate and latch is rotating in these embodiments, the direction of rotation of the plate and latch toward the open position is opposite.

It is also possible to place springs for different purposes in the equipment cabinet lock 1. The spring may for example be used to rotate the plate 7 towards a deadlock position in which its deadlock surface abuts against the

opposite surface

9A, 10A of the rack. One or more springs may also be used to hold the latch 2,

racks

9, 10 and central shaft 3 in the locked position.

Fig. 5 to 7 illustrate the operation of the electronic control apparatus. The electronic control device 6B is arranged to form a power transmission connection from the entity formed by the turning shaft 3 and the latch 2 to the plate 7 in order to turn the key in the lock cylinder 4 from the deadlock position to the release position when it is turned. In fig. 5, the electronic control device 6B makes it possible for the plate 7 to be rotated out of the deadlock position, whereby the latch 2 and the

racks

9, 10 can be moved out of their locking positions.

The embodiment of the figure comprises a control member 12 which is connected in a rotating manner to the equipment cabinet lock and which is placed between the entity formed by the rotating shaft 3 and the latch 2 and the electronic control device 6B. The electronic control device 6B is connected to the control projection 7B by, for example, screw fastening.

The electronic control device 6B is provided to form a power transmission connection between it and the control section 12 as a response to the electronic control. The electronic control device 6B is an electromagnet or a solenoid. The embodiment of the figures uses electromagnets. When the control current is connected to an electromagnet or other electronic control device, it generates an electromagnetic force, which allows the plate 7 to rotate. Fig. 6 shows a situation in which the electromagnet is de-energized and an attempt has been made to turn the lock cylinder 4 with a key. Thus, the turning shaft 3 and at the same time the latch 2 are turned slightly, but still in the locked position, since there is no power transmission connection between the control member 12 and the electromagnet. Fig. 6 shows a clear gap 61 between the control part 12 and the electromagnet, while the control part 12 is rotated slightly due to the latch and the rotation shaft. If a control current is connected to the electromagnet 6B, the electromagnet forms an electromagnetic field via which the electronic control apparatus and the control component make a power transmission connection. The control component is for example iron, whereby the electromagnetic field keeps the control component 12 and the electromagnet (or solenoid) attached to each other. Thus, as shown in fig. 7, the latch and the turning shaft, and thus also the control member 12, are turned, turning the plate 7 away from the deadlock position.

As mentioned before, the plate 7 may contain the

second control protrusion

7A, 7B, whereby the equipment cabinet lock may have both the second key cylinder 6A and the electronic control equipment 6B. The second cylinder and the electronic control device are arranged to operate with the

control projections

7A, 7B, for example in the manner shown in the figures. The control tabs may be formed such that they are well suited for use with the control devices for them. Other functions may additionally be implemented by the control tab. As can be seen for example from the figures, the control tab 7A for the second lock cylinder may also contain a side tab that functions with a microswitch placed in the equipment cabinet lock.

There may be one or two controls in the equipment cabinet lock for controlling deadlocks. An advantage of the electronic control device is that it can be used to control the equipment cabinet lock, for example to exit a deadlock during a certain time, whereby it can only be opened by using one key, i.e. the cylinder lock key. The advantage of the second lock cylinder is, for example, that the equipment cabinet lock does not need to be energized.

From the above description it can be seen that the equipment cabinet lock according to the invention can be implemented in many different ways. The invention makes it possible to make the security level of the equipment cabinet lock more optimal in a cost-effective manner compared to known solutions. The invention can also be used to form different equipment cabinet lock variants.

The invention is thus not limited to the examples presented herein, but may be implemented in different ways within the scope of the independent claims.

Claims

1. An equipment cabinet lock (1) comprising a rotary latch (2) connected to a rotary shaft (3), the latch and rotary shaft being arranged to rotate from a locked position to an open position and vice versa, the rotary shaft (3) being connected to a key cylinder (4) arranged to transfer a force caused by the rotation of a key to the rotary shaft (3) in order to rotate it and the latch (2), characterized in that the equipment cabinet lock (1) comprises a deadlock device (5) arranged to prevent the rotary shaft (3) and latch (2) from rotating to an open position in a deadlock position of the deadlock device (5), the deadlock device (5) being arranged to rotate from the deadlock position to a release position and vice versa,

the direction of movement of the deadlock device (5) from the deadlock position to the release position is opposite compared to the direction of movement of the latch (2) from the locking position to the opening position,

and the equipment cabinet lock (1) comprises control means (6A, 6B) for the deadlock means (5) to control the deadlock means from the deadlock position to the release position.

2. Equipment cabinet lock according to claim 1, characterized in that the deadlock device (5) comprises a plate (7) which is connected in a rotating manner to the rotation shaft (3) and which plate (7) has a control protrusion (7A, 7B) and a deadlock surface (7C) for the control device (6A, 6B) of the deadlock device, the equipment cabinet lock additionally comprising a gear wheel (8) which is connected to the rotation shaft (3) and arranged to rotate with the rotation shaft, and a toothed rack (9) which has an opposite locking surface (9A) for the deadlock surface (7C) and a recess (9B) which is connected with the gear wheel (8).

3. Equipment cabinet lock according to claim 2, characterized in that the equipment cabinet lock comprises a lock frame (1A) and the rack (9) comprises a non-notched portion (9C) extending out of the lock frame (1A).

4. Equipment cabinet lock according to claim 2 or 3, characterized in that the plate has a second deadlock surface (7D) and the equipment cabinet lock comprises a second rack (10) with a second opposite locking surface (10A) for the second deadlock surface (7D) and a second notch (10B) in contact with the gear wheel (8).

5. The equipment cabinet lock according to claim 4, characterized in that the equipment cabinet lock comprises a lock frame (1A) and the second rack (10) comprises a non-notched portion (10C) extending out of the lock frame (1A).

6. Equipment cabinet lock (1) according to any one of claims 2 to 5, characterized in that the control means of the deadlock device (5) comprises a second lock cylinder (6A) or an electronic control device (6B), the second lock cylinder (6A) being arranged to turn the plate (7) from the deadlock position to the release position when a second key in the second lock cylinder (6A) is turned, and the electronic control device (6B) being arranged to form a power transmission connection from the entity formed by the turning shaft (3) and latch (2) to the plate (7) so as to turn it from the deadlock position to the release position when a key in the lock cylinder (4) is turned.

7. Equipment cabinet lock according to claim 6, characterized in that at the bottom of the second lock cylinder (6A) there is a control shape (11) which controls the plate (7) via the control protrusion (7A) when the second key is turned.

8. An equipment cabinet lock (1) according to claim 6, characterized in that it comprises a control part (12) which is connected to the equipment cabinet lock in a rotational manner and which is placed between the entity formed by the rotational shaft (3) and latch (2) and the electronic control device (6B) and which is connected to the control projection (7B), the electronic control device (6B) being arranged to form a power transmission connection between it and the control part (12) as a response to the electronic control.

9. The equipment cabinet lock (1) according to claim 8, wherein the electronic control device (6B) is an electromagnet or a solenoid.

10. Equipment cabinet lock (1) according to any one of claims 6 to 9, characterized in that the plate (7) contains a second control protrusion (7A, 7B) and that the equipment cabinet lock has both a key cylinder (6A) and an electronic control device (6B), which key cylinder or electronic control device is arranged to function together with the second control protrusion (7A, 7B).