CN103295812B - For the plug-in type framework of electrical plug-in type switchgear and the unit that is made up of plug-in type framework and electrical plug-in type switchgear - Google Patents

Abstract

The invention relates to a plug-in frame for an electrical plug-in switchgear, in particular a plug-in circuit breaker, comprising: an adapter base for electrically connecting the plug-in switchgear to an energy supply device; a screw , for lowering and lifting the plug-in switchgear relative to the plug-in frame; the crank (1) for actuating the screw; the first side wall (2), for laterally holding the plug-in in the plug-in frame type switchgear, wherein the first side wall (2) has on its front side (3) a crank opening (4) for the crank (1) to be guided through the first side wall (2) to the screw, wherein the first closed The device (20) serves to release or at least partially cover the crank opening (4), wherein the first closing device (20) can be actuated manually or via a plug-in switching device.

Description

Plug-in frames for electrical plug-in switchgear and Unit consisting of plug-in frame and electrical plug-in switchgear

technical field

The invention relates to a plug-in frame for an electrical plug-in switchgear and to a unit consisting of a plug-in frame and an electrical plug-in switchgear.

Background technique

The task of electrical switching devices, such as circuit breakers, is to disconnect one or more loads from the power supply network in the event of a specific fault. A common fault is the occurrence of a short-circuit current, and circuit breakers are generally designed to move the switching element and thus decouple the connection between the load and the supply network when such a short-circuit current occurs.

The invention relates to a plug-in frame for an electrical plug-in switchgear, in particular to a plug-in circuit breaker in the low-voltage range. "Low voltage" typically refers to voltages up to about 2000 volts. With a corresponding design of the switching isolation section, such a switching device can also be used for switching voltages of more than 2000 Te, for example up to 6.3 kV. In particular, such electrical plug-in switching devices, such as low-voltage circuit breakers, are designed to interrupt the current path in the event of an overcurrent or in the event of a short circuit. They can be unipolar or multipolar, in particular tripolar.

For simple and quick installation or removal, for example in a plug-in frame, it is known that circuit breakers have an adapter base, which is usually designed as a plug-in or plug-in base. In this way, the circuit breaker can be connected non-positively and easily detachably to the line of the power supply network for energy supply. For this purpose, the adapter base has interfaces on the input side and on the output side, to which are connected the lines for the power supply and the circuits whose loads are to be supplied with electrical energy. For the electrical connection of the mostly square circuit breaker to the adapter base, corresponding plug contacts are provided thereon, which plug into each other after the circuit breaker has been pushed into the plug-in frame and thus produce an electrical connection . For switching on and off, circuit breakers usually have a manually actuatable lever on their front. In this case, an adapter base with a corresponding base size can be provided for each housing size, for example a construction series.

In order to lower and raise the electrical plug-in switching device inserted into the plug-in frame, a crank is preferably used. By turning the crank, the electrical plug-in switching device can be moved inside the plug-in frame in order to be connected to or disconnected from the adapter base. That is to say, the electrical plug-in switching device can be coupled to the crank of the plug-in frame in such a way that when the crank is rotated in a first direction, the electrical plug-in switching device enters into the plug socket, in particular in the direction of the adapter base. At the same time, when the crank is rotated in a second direction opposite to the first direction, the electrical plug-in switchgear moves away from the adapter base. Thus, the plug-in switching device can be moved by means of the crank and the screw into the connected position, into the unconnected position and optionally into the test position, in which the plug-in switching device is completely connected to the adapter base, in particular to the electrical Connected, in which the plug-in switching device is disconnected from the adapter base, in particular electrically disconnected, in the disconnected position, the test position lies between the connected position and the disconnected position. In all three positions, the plug-in switching device is located in or guided on the plug-in frame. If the plug-in switching device is completely removed from the plug-in frame, the plug-in frame is in the unlocked position.

Contents of the invention

The object of the present invention is to provide a plug-in frame for an electrical plug-in switchgear, in particular a plug-in circuit breaker, which can be realized in a simple and space-saving manner: not only prevents cranking insertion and also prevent electrical plug-in switching devices from being inserted into or removed from the plug-in frame.

This object is achieved according to the invention by a plug-in frame for an electrical plug-in switching device and by a unit consisting of a plug-in frame and an electrical plug-in switching device. Further features and details of the invention emerge from the description and drawings. Here, the features described in connection with the plug-in frame according to the invention are of course also suitable for combination with the unit according to the invention and vice versa, so that the disclosures relating to individual aspects of the invention are always referred to or can be referred to Cross reference.

According to a first aspect of the invention, the object is achieved by a plug-in frame for an electrical plug-in switchgear, in particular a plug-in circuit breaker, which has an adapter base for connecting a plug-in The switching device is electrically connected to the energy supply device; the screw rod is used for lowering and raising the plug-in switching device relative to the plug-in frame; the crank is used for actuating the screw rod; To hold and/or guide the plug-in switching device, wherein the first side wall has a crank opening on its front side for the crank to be guided through the first side wall to the threaded rod. Furthermore, the plug-in frame is characterized in that on the side facing the plug-in switching device, the first side wall has a guide extending up to the front, in which the plug-in switching device can be guided along, and a second A closing device for releasing or at least partially covering the crank opening and a second closing device for releasing or at least partially covering the crank opening, wherein the first closing device can be opened manually or by means of a plug-in switchgear manipulate.

With this plug-in frame for electrical plug-in switching devices, it can be ensured in a simple and space-saving manner that the plug-in frame not only prevents the crank from being plugged in, but also prevents the electrical plug-in switch Devices are inserted into or removed from the plug-in frame. That is to say, such a plug-in frame makes it possible for the plug-in frame to prevent unauthorized insertion of the crank on the one hand and to lock the plug-in frame at the same time to prevent unauthorized insertion of the plug-in circuit breaker into the plug-in socket. into the frame or removed from the plug-in frame. This means that the plug-in frame can easily prevent the insertion of the crank for the movement of the plug-in switching device located in the plug-in frame by means of the crank, and a plug-in frame designed in this way prevents at the same time, In particular, the plug-in switching device can be plugged into or removed from the plug-in frame.

The plug-in frame has an adapter base for electrically connecting the plug-in switching device to the power supply. Advantageously, a corresponding connecting device, usually a connecting plug, is provided on the plug-in base and on the electrical plug-in switching device. Furthermore, the plug-type frame has a first side wall for laterally holding and/or guiding the plug-type switching device in the plug-type frame. Preferably, two or more side walls are provided, into which the electrical plug-in switching device can be inserted, in particular with a positive fit, until it makes electrical contact with the adapter base. The first side wall has on its front side a crank opening for guiding the crank to the screw of the plug-in frame. The screw makes it possible to lower and raise the plug-in switching device relative to the plug-in frame. The crank is guided through the first side wall of the plug-in frame to the threaded rod, so that the threaded rod converts the rotational movement of the crank into a translational movement. This means that the screw is designed in such a way that it can guide the electrical plug-in switching device into the plug-in frame or press it out of the plug-in frame. This movement is initiated by the rotational movement of a crank engaged into the screw. This means that the plug-in switching devices plugged into the plug-in frame can assume different positions within the plug-in frame. In the state raised by the screw, the plug-in switching device is not connected, in particular electrically, to the adapter base. In the state of being lowered by the screw, the plug-in switching device is connected, in particular electrically, to the adapter base.

On the side facing the plug-type switching device, the first side wall has a guide extending up to the front, along which the plug-type switching device can be guided when inserted into the plug-type frame. The first closure means has two functions. On the one hand, the first closing device serves to release or at least partially cover the crank opening and on the other hand it serves to release or cover the guide. That is to say, the first closure device prevents the crank from being inserted into the side wall of the plug-in frame. On the other side, the plug-in frame enables a release guide so that a plug-in switching device located in the plug-in frame can be removed from the plug-in frame or an electrical plug-in switching device can be inserted into the in a plug-in frame. When locking or covering the guide, the first closing device prevents that the electrical plug-in switching device can be inserted into the plug-in frame or the plug-in switching device located in the plug-in frame can be removed from the plug-in frame. frame removed. In this case, the first closure device can be actuated manually by an operator of the plug-in frame. This means that the first closing device can be moved manually by an operator in such a way that the first closing device opens or closes the guide on the front side of the side wall. Furthermore, by manually moving the first closing device it is possible to close or release the crank opening by the first closing device.

According to a preferred development of the invention, it can be provided with regard to the plug-in frame that a second closure device is provided for releasing or for at least partially covering the crank opening, wherein the second closure device can be manually actuated closed skateboard rigging. The second closing device serves only to release or close the crank opening in the front side of the first side wall. For this purpose, the second closing device can be manually actuated via the closing slide.

According to a particularly preferred development of the invention, with regard to the plug-in frame it can be provided that the first closing device and the second closing device are arranged opposite one another in such a way that the first closing device is completely covered by the second closing device at the crank opening When the crank opening is not covered but the guide is closed; the first closing device covers the part of the crank opening not covered by the second closing device and closes the guide when the crank opening is partially covered by the second closing device; and the first closing The device covers the crank opening when the crank opening is not covered by the second closure means, but releases the guide. That is to say that not only the first closing device but also the second closing device can each assume three different positions. In a first position, so-called position A, the first closure device blocks the guide and releases the crank opening. In this position A of the first closing device, the crank opening is covered by the second closing device. That is to say, position A describes the situation in which the plug-in switching device is arranged in a plug-in frame. Since the second closing device covers the crank opening, the first closing device cannot move towards the crank opening, but is held in position A by the second closing device. This means that the first closing device and the second closing device advantageously bear against each other in position A, so that in this position A no movement of the first closing device is possible due to the second closing device. The second closing device prevents the first closing device from being able to move. This means that due to the relative position of the first closing device and the second closing device to one another it is ensured that the guide remains closed so that a plug-in switching device introduced into the plug-in frame cannot be removed from the plug-in frame. removed from the .

In position B, the first closing device partially covers the crank opening and at the same time closes the guide in the front face of the first side wall. A second part of the crank opening is covered by the second closing means. This position B describes the situation in which no plug-in switching device is located in the plug-in frame, that is to say the electrical switching device has been removed from the plug-in frame.

In position C, the first closure device releases the guide, so that the electrical plug-in switching device can be inserted into or removed from the plug-in frame. At the same time, the first closure means covers the crank opening, thereby preventing the crank from being inserted into the side wall. The closing slide already moves the second closing device in such a way that the second closing device releases the crank opening. By releasing the guide on the front side of the first side wall, the plug-in frame is in the unlocked position.

For lowering and raising the plug-in switching device relative to the plug-in frame by means of the screw, it is necessary that in position A the second closing device releases the crank opening. This can be achieved by manually actuating the closing slide. In this case, the closing slide is in operative contact with the second closing device in such a way that the second closing device can be moved by the closing slide for releasing the crank opening. Increased safety of the plug-in frame is provided by the second closing device and the closing slide. This means that the inserted plug-in switching device can only be raised or lowered when the second closing device releases the crank opening. For this purpose, the user of the plug-in frame has to actuate the closing slide. Advantageously, however, the closed slide can only be actuated when the user is authorized.

Therefore, for inserting or removing an electrical plug-in switching device into or out of the plug-in frame and at the same time for moving the plug-in switching device located in the plug-in frame, the first and a second closure provide a double security.

The first and/or second closure means are arranged movably on the front side of the first side wall for releasing or covering the crank opening and the guide. Particularly preferably, with the plug-in frame it can be provided that the first closing device and the second closing device are guided, in particular linearly, in the first side wall below the front. This ensures that the first and second closure means are covered from the front and thus cannot or only hardly be damaged. As a result, a long-term functioning of the closure device and thus of the plug-in frame is ensured.

Advantageously, with regard to the plug-in frame it can be provided that the first closure device has a handle which is guided in an actuating opening in the front side of the first side wall. In this case, the handle of the first closure device is preferably designed in such a way that it can be manually gripped by an operator from the outside of the side wall. In particular, the handle is guided linearly in the operating opening.

According to a further preferred development of the invention, with regard to the plug-in frame it can be provided that the guide is designed in such a way that a control element of the plug-in switching device can be guided in the guide and that the first closing device has a recess, When the recess of the first closing device is arranged aligned relative to the guide of the first side wall, the control element of the plug-in switching device can be guided through the recess, wherein when the recess is arranged misaligned relative to the guide , the first closure device covers the guide. The control element of the plug-in switching device is preferably designed as a contact pin protruding from the housing of the plug-in switching device. The plug-in switching device is guided within the plug-in frame via the control element or the control pin. This ensures that the electrical plug-in switching device is correctly guided along the plug-in frame. The first closure device advantageously has a recess which is arranged on the first closure device in such a way that it is arranged in alignment in position C with respect to the guide in the front side of the first side wall. In this position C, the electrical plug-in switching device can be removed from the plug-in frame or the electrical plug-in switching device can be inserted into the plug-in frame. When the recess of the first closure device is arranged misaligned with respect to the guide of the front side of the first side wall, the first closure device covers the guide. In this case, the first closure device is in position A or B.

Furthermore, it can also be provided in the plug-in frame according to the invention that the first closure device has a locking element and that the first side wall, in particular the inner side of the front side of the first side wall, has a counter locking element, the locking element and the counter locking element. The locking elements are arranged relative to each other in such a way that the locking element and the counter locking element releasably engage with each other in the so-called position C when the crank opening is completely covered by the first closing means, in order to lock the first closing means in the second position. on one side wall. This ensures that, for inserting or removing the plug-in switching device into or out of the plug-in frame, the guide is reliably released, that is to say the first closure device can be held securely in the in that location.

According to a further preferred development of the invention, with regard to the plug-in frame it can be provided that a first spring element is provided by means of which a first closure is provided from position C towards position B and from position B towards position A Device loading force. That is to say, the first spring element ensures that, after releasing the locking connection between the first closing device and the first side wall, the first closing device can automatically be guided back from position C into position B and subsequently from position B returns to boot into position A. That is to say, the first spring element ensures that the first closing device can be automatically moved back into the initial position formed by the position A of the first closing device.

According to another preferred development of the invention, it can be provided with regard to the plug-in frame that the second closing device is operatively connected to the closing slide in such a way that when the closing slide moves from the release position into the closing position, the second closing device Move in front of the crank opening to cover the crank opening. That is to say, the movement of the second closing device is linked to the position of the closing slide on the plug-in frame. If the closing slide is in the release position, the second closing device does not cover the crank opening so that the crank can be inserted into the plug-in frame. If the closing slide is moved into the closed position, the closing slide moves the second closing device in such a way that it covers the crank opening so that the crank cannot be inserted into the plug-in frame or the side wall of the plug-in frame . The movement of the second closing device is linked to the movement of the closing slide. This association can be designed in different forms. A plug-in frame is preferred, in which the second closure device has an engagement element which is guided in a slide bar guide of the closure slide for establishing the functional connection, that is to say the association. This ensures that when the closing slide is moved, the second closing device is also moved. At the same time it is ensured that when the closing slide is not moving, the second closing device is likewise unable to move. If, for example, the closing slide is locked in the closing position or in the release position, the second closing device cannot be moved. That is to say, the closing slide enables the plug-in frame or the crank opening of the plug-in frame to be released or closed.

According to another preferred development of the invention, it can be provided with regard to the plug-in frame that a second spring element is provided, which is arranged in such a way that the second spring element moves from the release position to the closure position of the closure slide Medium is prestressed. This ensures that the closing slide can be guided back from the closed position into the release position by spring force when the user of the plug-in frame releases the movement of the closing slide. That is to say that in the closed position the closing slide can be locked by the user, for example by means of a padlock, so that the closing slide remains in the closed position. As soon as the closing slide is released in the closed position, the force of the second spring element causes the closing slide to move back into the released position. Preferably, the closing slide is located inside the plug-in frame in the released position, whereas it is located at least partially outside the plug-in frame or the first side wall of the plug-in frame in the closed position. With the preferred plug-in frame it can be provided that the closing slide has locking elements, in particular openings, for locking the closing slide in the closed position. Thus, for example, a padlock can be guided through the opening of the closing slide when the closing slide is in the closed position. It can thus be ensured that the closing slide cannot be moved out of the closed position, since the closing slide has already moved the second closing device in the closed position in such a way that the second closing device covers the crank opening, ensuring that the crank cannot pass through the crank opening and is inserted into the interior of the side wall. In this closed position of the closing slide it is ensured that the plug-in switching devices located in the plug-in frame cannot be moved. That is to say, by locking the closing slide in the closed position and associated therewith, covering the crank opening by the second closing device, it is ensured that the plug-in switching device located in the plug-in frame remains securely in the connected position, for example. . The plug-in switching device cannot thus be moved within the plug-in frame, since the screw rods necessary for lowering or raising the plug-in switching device cannot be accessed.

According to another preferred development of the invention, it can be provided for the plug-in frame that a lock, in particular a cylinder lock, is provided for locking the second closing device when the crank opening is covered by the second closing device . That is to say that in addition or as an alternative to locking the second closing device by means of the closing slide, a lock can be provided on the plug-in frame which is designed for locking the second closing device. In this case, the lock is preferably designed in such a way that it prevents the movement of the second closure device if the second closure device only partially covers the crank opening. It can thus be ensured by the lock that neither the crank can be inserted into the crank opening nor the plug-in switching device can be removed from the plug-in frame or inserted into the plug-in frame, This is because in this position of the second closing device the first closing device is displaced in such a way that it covers the guide in the front side of the first side wall. This means that the plug-in frame can be completely locked by means of a lock, in particular designed as a cylinder lock inside the plug-in frame. The lock or the cylinder lock can advantageously be actuated by means of a key, so that it is ensured that only authorized persons can actuate the plug-in frame.

The closing slide of the plug-in frame is advantageously located in a groove in the first side wall of the plug-in frame in the released position and is advantageously removed from the first side wall, in particular from the first side wall, in the closed position. At least partially protruding from the front.

According to a further preferred development of the invention, it can be provided with respect to the plug-in frame that a position sensor is provided which is designed to lock the first closing device when it is in position B. The position measuring device can have another function. It is thus possible to determine the position of the plug-in switching device within the plug-in frame.

According to a second aspect of the invention, the object is achieved by a unit consisting of a plug-in frame and an electrical plug-in switchgear, in particular a plug-in circuit breaker, particularly preferably a plug-in compact circuit breaker , wherein the plug-in switchgear has a housing and a switch mechanism, and wherein the plug-in frame is designed to receive an electrical plug-in switchgear. Furthermore, the unit is characterized in that the plug-in frame is designed according to the first aspect of the invention. The same advantages as those described in detail with respect to the plug-in frame according to the first aspect of the invention apply to the unit accordingly. The plug-in circuit breaker can in particular be an electromagnetic switch. It can be used as an overload circuit breaker for protecting circuits against short circuits and/or overloads and/or voltage fluctuations. It can also be considered as a motor protection switch. By designing the electrical plug-in switching device as a plug-in circuit breaker, in particular as a plug-in compact circuit breaker, the electrical plug-in switching device can be used in a wide bandwidth of electrical applications. The plug-in frame of the electrical plug-in switching device is adapted to the size of the plug-in frame, so that the plug-in switching device can preferably be plugged into the plug-in frame with a positive fit. The plug-in frame advantageously has further side walls in addition to the first side wall, so that when the plug-in switching device is located in the plug-in frame, the housing of the plug-in switching device is advantageously passed on all sides by the plug-in Connected frame surround. When the plug-in switching device is plugged into the plug-in frame, only the front side of the plug-in switching device remains freely accessible.

Description of drawings

The present invention will be described in detail below according to the accompanying drawings. Respectively schematically show:

Figure 1 shows a perspective view of a first closing device of a plug-in frame according to the invention,

Figure 2 shows a perspective view of a second closing device of a plug-in frame according to the invention,

Fig. 3 shows the front of the first side wall of the plug-in frame in a perspective view, wherein not only the guide in the front, but also the crank opening in the front is closed by a closing device,

FIG. 4 shows the first side wall according to FIG. 3 in a perspective view, wherein the crank opening is at least partially released by the second closing means,

FIG. 5 shows the position of the first closing device in position A, on the one hand in a top view on the front side of the first side wall of the plug-in frame and on the other hand in a perspective view,

FIG. 6 shows position B of the first closing device, on the one hand in a front view on the front side of the first side wall of the plug-in frame according to FIG. 5 and on the other hand in a perspective view,

FIG. 7 shows position C of the first closing device, on the one hand in a front view on the front side of the first side wall of the plug-in frame according to FIG. 5 and on the other hand in a perspective view,

8 shows a cross-sectional view of a lock and a closing slide of a plug-in frame according to the invention, wherein the closing slide is in the locked position, and

FIG. 9 shows the lock and the closing slide according to FIG. 8 in a sectional view, the closing slide being in the release position.

List of reference signs

1 crank

2 first side wall

3 front

4 crank opening

5 closed slides

6 Operating opening

7 Side of the side wall facing the plug-in switching device

8 Boot

9 Front inner side

10 Mating locking element

11 Slider guide of the closed slide

12 Second spring element

13 Closing element / closing slide opening

14 locks

15 position sensor

20 First closing device

21 handle

22 recessed part

23 locking element

25 ramps

30 Second closing device

31 Joining elements

40 Control elements for plug-in switching devices

41 Side wall of plug-in switchgear

Position A The first closing device does not cover the crank opening

Position B The first closure partially covers the crank opening

Position C The first closure completely covers the crank opening

F Released position of the closing slide

V Closed position of the closed slide

Elements with the same function and mode of action are each provided with the same reference symbols in FIGS. 1 to 9 .

detailed description

FIG. 1 schematically shows a perspective view of a first closure device 20 according to the invention for a plug-in frame of an electrical plug-in switching device. The first closing device 20, which is preferably designed as a closing slide, has a handle 21 which can be gripped by the user in order to position the first closing device 20 relative to the first side wall 2, in particular the first side wall, of the plug-in frame. 2 frontal 3 movements. In addition, the first closure device 20 has a locking element 23 , by means of which the first closure device 20 can be held on the first side wall 2 , in particular on the inner side 9 of the front side 3 of the first side wall 2 . in a certain location. Preferably, the locking element 23 is arranged on the first closing device 20 in such a way that it enables, when the recess 22 of the first closing device 20 is aligned with the guide 8 on the first side wall 2 of the plug-in frame When correctly arranged, the first closure device 20 is held in this position. This ensures that the plug-type switching device, in particular the control element 40 of the plug-type switching device, can be easily and reliably inserted into the guide of the first side wall 2 . The side wall 41 and the control element 40 of the plug-in switching device are shown, for example, in FIG. 7 . In particular, the recess 22 can have a bevel 25 which facilitates the insertion of the plug-in switching device, in particular the control element 40 of the plug-in switching device, into the recess 22 and thus into the guide 8 . The first closing device 20 has an area, shown here by a cross on the first closing device 20 , which is designed to partially or completely cover the crank opening in the front side 3 of the first side wall 2 4. The first closing device 20 shown in FIG. 1 is designed for linear guidance below the front side 3 of the first side wall 2 , that is to say on the inner side 9 of the front side 3 . Here, the handle 21 is guided through the actuating opening 6 of the front side 3 and in this actuating opening 6 , in particular linearly.

FIG. 2 schematically shows a perspective view of a second closure device 30 which is designed to partially or completely cover the crank opening 4 in the front side 3 of the first side wall 2 . The second closure device 30 can preferably also be arranged linearly and guided within the first side wall 2 of the plug-in frame. Via the engagement element 31 , the second closing device 30 is in operative contact with the closing slide 5 of the plug-in frame and likewise moves when the closing slide 5 moves.

FIG. 3 schematically shows the front side 3 of the first side wall 2 of the plug-in frame in a perspective view, wherein not only the guide 8 in the front side 3 but also the crank opening 4 in the front side 3 pass through the closure means 20 , 30 to close. An actuating opening 6 is formed in the front side 3 , through which the handle 21 of the first closure device 20 is guided for gripping by the user. In this case, the actuating opening 6 is designed in such a way that the handle 21 is movably guided. In the front side 3 of the first side wall 2 there is provided a guide 8 which extends along the side of the side wall 2 facing the plug-in switching device. The guide 8 serves to receive a control element 40 of the plug-in switching device. This guide 8 also ensures that the plug-in switching device can be inserted into the plug-in frame in a defined manner or can be guided out of the plug-in frame in a defined manner. The guide 8 is equipped inside the first side wall 2 of the plug-in frame with a position sensor 15 which is movably mounted inside the first side wall 2 . The position sensor 15 moves through the plug-in switching device when the plug-in switching device is plugged in and can determine the position of the plug-in switching device in the first side wall of the plug-in frame and transmit it to a position not shown A display, whereby an observer can recognize the precise position of the plug-in switching device within the plug-in frame. The first closing device 20 is in the so-called position B. In this position B, there is no electrical plug-in switching device inside the plug-in frame. The first closing device 20 completely covers the guide 8 on the one hand and half of the crank opening 4 on the other hand. The other half of the crank opening 4 is covered by the second closing device 30 . The second closing device 30 is operatively connected to the closing slide 5 , which is held movably on the first side wall 2 of the plug-in frame. In FIG. 3 , the closing slide 5 is in an intermediate position between the release position F and the closing position V. In FIG. That is to say that in the release position F the closure slide 5 is completely inserted into the groove of the first side wall 2 . In the release position F, the closing slide 5 moves the second closing device 30 in such a way that it does not close the crank opening 4 . In the closed position V, the closing slide 5 leads out of the first side wall 2 of the crank frame. In this case, the closing slide 5 moves the second closing device 30 in such a way that it completely covers the crank opening 4 in the front side 3 of the first side wall 2 . Furthermore, a lock 14 designed as a cylinder lock is provided on the front side 3 of the first side wall 2 . In addition to or instead of the closing slide 5 , the lock 14 serves to lock the second closing device 30 relative to the front side 3 of the first side wall 2 of the plug-in frame. That is, the lock 14 can lock the movement of the second closure device 30 . In FIG. 3 the lock 14 is in the locking position, wherein the lock 14 locks the second closure device 30 in the position shown.

FIG. 4 schematically shows a perspective view of the first side wall 2 of the plug-in frame according to FIG. 3 , wherein the crank opening 4 is released by at least the second closure device 30 . The closing slide 5 is in a release position F in which it has moved the second closing device 30 in such a way that it no longer covers the crank opening 4 . The lock 14 is rotated relative to the position of the lock 14 according to FIG. 3 , so that it no longer locks the movement of the second locking device and thus the slide 5 . By displacing the first closing device 20 , the guide 8 can be released so that the plug-type switching device can be inserted into the plug-type frame. The crank opening 4 can then be released by manually manipulating or moving the first closing device 20, so that the crank 1, not shown, can be guided through the crank opening 4 to the screw, not shown, of the plug-in frame so that the inserted The plug-in switching device is lowered from the disconnected position into the test position or the connected position in the plug-in frame. This is achieved by the rotation of the crank and the conversion of the rotary movement by means of the screw into a translational movement by means of which the plug-in switching device inserted in the plug-in frame can be lowered or raised.

FIG. 5 schematically shows the state of the first closing device 20 in position A, on the one hand in a perspective view and on the other hand in a plan view on the front side 3 of the first side wall 2 of the plug-in frame. In this position A, the first closing device 20 is displaced relative to the front side 3 of the first side wall 2 in such a way that it releases the crank opening 4 and at the same time covers the guide 8 . This position A is occupied when the plug-in switching device is plugged into the plug-in frame. Depending on the position of the closing slide 5 , the crank opening 4 can be covered or released by the second closing device 30 . If the crank opening 4 is released by the second closing means 30, the crank 1 (see FIG. 9 ) can be inserted into the first side wall 2 through the crank opening 4 so that by manipulating the screw inside the first side wall 2 the inserted The plug-in switching device is lowered or raised, so that the plug-in switching device is plugged into or detached from an adapter base (not shown) of the plug-in frame.

The position B of the first closing device 20 is shown schematically in FIG. 6 , on the one hand in a front view on the front side 3 of the first side wall 2 of the plug-in frame according to FIG. 5 and on the other hand in a perspective view. . In position B, the first closure device 20 at least partially covers the crank opening 4 , so that the crank 1 cannot be inserted through the crank opening 4 . Furthermore, the first closing device 20 covers the guide 8 so that a plug-in switching device located in the plug-in frame cannot be removed from the plug-in frame or inserted into the plug-in frame. The second closing device 30 can cover the second half of the crank opening 4 and at the same time prevent the movement of the first closing device 20 in such a way that it completely covers the crank opening 4 or the release guide 8 .

FIG. 7 schematically shows position C of the first closing device 20 , firstly in front view on the front side 3 of the first side wall 2 of the plug-in frame according to FIG. 5 and secondly in perspective view. In this position C, the first closure device 20 completely covers the crank opening 4 . At the same time, the first closing device 20 releases the guide 8 so that a control element 40 of the plug-in switchgear or an electrical plug-in switchgear, in particular designed as a control contact pin, can be inserted into the guide or moved along the guide from the plug. Exported in an inline framework.

FIG. 8 schematically shows the lock 14 and the closing slide 5 of the plug-in frame according to the invention in a sectional view, wherein the closing slide 5 is in the closed position V. FIG. In this closed position V, the closing slide 5 is led out of the first side wall 2 of the plug-in frame in order to thereby close the crank opening 4 by means of the second closing device 30 . The closing slide 5 has a locking element 13 , here in the form of an opening. A padlock can be guided through this opening 13 in order to lock the closing slide 5 in the locked position V thus. This ensures that the second closure device 30 permanently closes the crank opening 4 so that the crank 1 cannot be inserted. Arranged on the closing slide 5 is a second spring element 12 which is prestressed in the closed position V. FIG. If the movement of the closing slide 5 is released, for example by removing the padlock, the second spring element 12 is used to guide the closing slide 5 back into the release position F, in which the closing slide 5 advantageously sinks into the plug-in frame In the groove in the first side wall 2 of the This is shown in FIG. 9 . Furthermore, the closing slide 5 has a sliding rod guide or sliding guide 11 in which the engagement element 31 of the second closing device 30 is seated in a guided manner. Via the engagement element 31 and the slide bar guide 11, the closing slide 5 and the second closing device 30 are coupled to each other in such a way that when the closing slide 5 is moved between the release position F and the locking position V, the second closing device 30 is thus moved position, so that the second closing device releases the crank opening 4 on the one hand and covers the crank opening 4 on the other hand. Furthermore, the plug-in frame has a lock 14 which is designed to additionally lock the movement of the second closing device 30 or the closing slide 5 .

FIG. 9 schematically shows the lock 14 according to FIG. 8 and the closing slide 5 in a sectional view, wherein the closing slide 5 is in the release position F. FIG. In the release position F of the closing slide 5, the second closing device 30 does not cover the crank opening 4, so that the crank 1 can be inserted through the crank opening 4 into the first side wall 2 of the plug-in frame in order to directly or Engages indirectly with the threaded rod of the plug-in frame, so that the threaded rod is transferred into a translational movement by means of a rotational movement, whereby the plug-in switching device inserted into the plug-in frame can be lowered or raised.

The preceding explanations of embodiments of the plug-in frame only illustrate the invention within the scope of the exemplary embodiments. It goes without saying that the individual features of the described embodiments can be freely combined with one another as long as they are technically meaningful without departing from the scope of the present invention.

Claims (23)

1. A plug-in frame for electrical plug-in switchgear, which has: an adapter base for electrically connecting said plug-in switchgear to an energy supply device; a plug-in frame for lowering and lifting the plug-in switchgear; a crank (1) for manipulating the screw; a first side wall (2) for laterally holding and /or guide the plug-in switchgear, wherein the first side wall (2) has on its front side (3) a leads to the crank opening (4) of the screw, It is characterized in that the first side wall (2) has a guide portion (8) extending up to the front face (3) on the side (7) facing the plug-in switchgear, in the guide portion Along which the plug-in switchgear can be guided, a first closing device (20) is provided for releasing or at least partially covering the crank opening (4) and for releasing or covering the guide ( 8), wherein the first closing device (20) can be actuated manually or via the plug-in switching device. 2. The plug-in frame according to claim 1, characterized in that the electrical plug-in switchgear is a plug-in circuit breaker. 3. The plug-in frame according to claim 1 or 2, characterized in that a second closing device (30) is provided for releasing or at least partially covering the crank opening (4), wherein the first The two closing devices (30) can be manipulated via the closing slide (5). 4. The plug-in frame according to claim 3, characterized in that said first closing means (20) and said second closing means (30) are arranged opposite to each other in such a way that in position A said The first closing means (20) does not cover the crank opening (4) and closes the guide (8) when the crank opening (4) is completely covered by the second closing means (30); in position B wherein said first closing means (20) covers said crank opening (4) when said crank opening (4) is partially covered by said second closing means (30), not covered by said second closing means (30) covered part and closes said guide (8); and in position C said first closing means (20) is not covered by said second closing means (30) at said crank opening (4) While covering the crank opening (4) and releasing the guide (8). 5. The plug-in frame according to claim 3, characterized in that, the first closing device (20) and the second closing device (30) are in the first side wall (2) at the Guide under the front (3). 6. The plug-in frame according to claim 5, characterized in that, the first closing device (20) and the second closing device (30) are in the first side wall (2) at the Guided linearly below the front face (3). 7. The plug-in frame according to claim 1 or 2, characterized in that, the first closing device (20) has a handle (21), and the handle is on the side of the first side wall (2). It is guided in the operating opening (6) in the front side (3). 8. The plug-in frame according to claim 1 or 2, characterized in that the guide (8) is designed in such a way that the control element (40) of the plug-in switchgear can and the first closing device (20) has a recess (22), where the recess (22) of the first closing device (20) is relative to the first side wall (2) When arranged in alignment with the guide (8), the control element (40) of the plug-in switchgear can be guided through the recess, wherein in the recess (22) relative to the guide (8) When arranged misaligned, said first closure means (20) covers said guide portion (8). 9. The plug-in frame according to claim 4, characterized in that the first closing device (20) has a locking element (23) and the first side wall (2) has a counter locking element (10 ), the locking element and the counter locking element are arranged relative to each other in such a way that in position C the locking element and the counter locking element when the crank opening (4) is covered by the first closure means (20) releasably engage each other to lock said first closure means (20) on said first side wall (2). 10. The plug-in frame according to claim 9, characterized in that the inner side (9) of the front side (3) of the first side wall (2) has a mating locking element (10). 11. The plug-in frame according to claim 4, characterized in that a first spring element is provided, by means of which the first spring moves from position C towards position B and from position B towards position A. The closing device (20) is loaded with force. 12. The plug-in frame according to claim 3, characterized in that, the second closing device (30) is functionally connected with the closing slide (5) in the following manner: when the closing slide (5) When the releasing position (F) is moved into the closing position (V), the second closing device ( 30 ) is moved in front of the crank opening ( 4 ) in order to cover the crank opening ( 4 ). 13. The plug-in frame according to claim 12, characterized in that the second closing device (30) has an engagement element (31) which engages on the closing slide (5 ) in the slider guide (11) for guidance. 14. The plug-in frame according to claim 12, characterized in that a second spring element (12) is provided, which is arranged such that the second spring element is positioned between the closing slides ( 5) Prestressed when moving from the release position (F) into the closed position (V). 15. Plug-in frame according to claim 12, characterized in that the closing slide (5) has a locking element (13) for locking the closing slide (5) in the closed position (V) . 16. The plug-in frame according to claim 15, characterized in that the locking element (13) is an opening. 17. The plug-in frame according to claim 12, characterized in that a lock (14) is provided, said lock being designed for opening the crank opening (4) by said second closing means (30) Said second closure means (30) are locked when covered. 18. The plug-in frame according to claim 17, characterized in that the lock (14) is a cylinder lock. 19. The plug-in frame according to claim 12, characterized in that the closing slide (5) is located in a groove in the first side wall (2) in the release position (F), and At least partially protrudes from the first side wall (2) in the closed position (V). 20. The plug-in frame according to claim 19, characterized in that, in the closed position (V), the closing slide (5) extends from the front side (3) of the first side wall (2) ) at least partially protrudes. 21. The plug-in frame according to claim 4, characterized in that a position sensor (15) is provided, which is designed to lock the first closing device (20) in the position B . 22. A unit consisting of a plug-in frame and an electrical plug-in switchgear, wherein the plug-in switchgear has a housing and a switching mechanism, and wherein the plug-in frame is designed to receive the electrical Plug-in switching device, characterized in that the plug-in frame is a plug-in frame designed according to one of the preceding claims. 23. The unit of claim 22, wherein the electrical plug-in switchgear is a plug-in circuit breaker.