CN221042134U - Handle for drawer, drawer assembly and low-voltage power distribution cabinet - Google Patents

Abstract

The present disclosure relates to handles for drawers, drawer assemblies, and low voltage power distribution cabinets. A handle for a drawer includes a handle portion, an unlocking member, and an actuating member. An unlocking member extends partially from the handle portion and is configured to unlock a locking mechanism of the drawer. The actuating member is movable relative to the handle portion between an initial position and an actuated position to move the unlocking member, wherein the unlocking member is in a non-operative position that does not unlock the locking mechanism when the actuating member is in the initial position, and wherein the unlocking member is moved to an operative position that unlocks the locking mechanism when the actuating member is moved to the actuated position due to actuation of the actuating member.

Description

Handle for drawer, drawer assembly and low-voltage power distribution cabinet

Technical Field

The disclosure relates to the field of low-voltage power distribution cabinets, and in particular relates to a handle for a drawer, a drawer assembly with the handle and a low-voltage power distribution cabinet with the drawer assembly.

Background

The drawer of low-voltage distribution cabinet is provided with locking mechanical system generally, in the in-service use, need to unlock locking mechanical system earlier, just can pull out the drawer of low-voltage distribution cabinet.

The existing low-voltage power distribution cabinet is generally provided with an unlocking button for unlocking the locking mechanism and a handle for drawing the drawer, wherein the unlocking button and the handle are independent respectively and realize respective functions.

However, at present, there is an increasing need for miniaturization of the power distribution cabinet and the respective drawer units, and in some scenarios the volume of the drawer units needs to be reduced to even 1/4 of the original volume, and the separate unlocking button and the drawer handle occupy a relatively large space, which is not beneficial for miniaturization of the drawer and the whole power distribution cabinet.

There is a need to propose an improvement which satisfies both the unlocking and drawing functions of the drawer, and which allows a greater reduction in the occupied volume, in order to be miniaturized.

Disclosure of utility model

In view of the above-mentioned problems and needs, the present disclosure proposes a handle for a drawer, a drawer assembly having the handle, and a low voltage power distribution cabinet having the drawer assembly, which effectively solve the above-mentioned problems, and have other technical effects as will be mentioned later, due to the following technical features.

The handle for a drawer proposed by the present disclosure includes a handle portion, an unlocking member, and an actuating member. An unlocking member extends partially from the handle portion and is configured to unlock a locking mechanism of the drawer. The actuating member is movable relative to the handle portion between an initial position and an actuated position to move the unlocking member, wherein the unlocking member is in a non-operative position that does not unlock the locking mechanism when the actuating member is in the initial position, and wherein the unlocking member is moved to an operative position that unlocks the locking mechanism when the actuating member is moved to the actuated position due to actuation of the actuating member.

According to a preferred embodiment, the actuator is a button movable relative to the handle portion.

According to a preferred embodiment, the handle portion comprises a handle body and an attachment coupled to the handle body, the handle body and the attachment defining a movement space for the button.

According to a preferred embodiment, the handle body has a button receiving portion forming a part of the movable space.

According to a preferred embodiment, the attachment is connected to the handle body by a snap-fit arrangement.

According to a preferred embodiment, the attachment comprises a first attachment and a second attachment independent from each other, the button being located between the first attachment and the second attachment.

According to a preferred embodiment, the first attachment part and the second attachment part each have a limiting flange for limiting the initial position of the push button.

According to a preferred embodiment, the first attachment member, the second attachment member and the handle body each have a guiding feature for guiding the sliding of the button.

According to a preferred embodiment, the sliding surface of the button is provided with a guide rail, and the side walls of the button receiving portion of the first attachment, the second attachment and the handle body are provided with guide grooves for receiving the guide rail.

According to a preferred embodiment, the unlocking member is a lever, one end of which abuts the button.

According to a preferred embodiment, the handle further has a return spring which is arranged in the button receptacle and is located between the flange of the unlocking element and the handle body.

According to a preferred embodiment, the button is provided with a through hole or a through slot for setting the latch.

According to a preferred embodiment, the actuating element is a pull rod transverse to the unlocking element.

According to a preferred aspect, the unlocking member is a lever provided with a flange configured to cooperate with the lever such that when the lever is actuated towards the actuated position, the lever pushes the flange to move the unlocking member to the working position.

According to a preferred aspect, the handle portion comprises a handle body and an attachment, the handle body having a hollowed-out portion for receiving a pull rod, and an end wall of the hollowed-out portion forming a limit stop defining the position of the pull rod.

According to a preferred embodiment, the handle further has a return spring which is in abutment between the flange of the unlocking element and an attachment element of the handle part.

According to a preferred aspect, the handle portion comprises a mounting portion configured for mounting to a drawer.

The present disclosure also proposes a drawer assembly comprising a drawer and a handle as claimed in any of the foregoing preferences, said handle being mounted on a panel of said drawer.

The present disclosure also proposes a low voltage power distribution cabinet comprising several drawer assemblies as described previously.

Preferred embodiments for carrying out the present disclosure will be described in more detail below with reference to the attached drawings so that the features and advantages of the present disclosure can be easily understood.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings of the embodiments of the present disclosure will be briefly described below. Wherein the drawings are designed solely to illustrate some embodiments of the disclosure and not to limit all embodiments of the disclosure thereto.

FIGS. 1 and 2 show exploded views of a handle of a first embodiment of the present disclosure, respectively, from different perspectives;

FIGS. 3A and 3B show schematic views of the handle of the first embodiment in different states, respectively;

FIGS. 4A and 4B are schematic diagrams showing the push button of the handle being pressed and restored to the original position, respectively;

Fig. 5 and 6 show schematic views of a switchgear drawer provided with the handle of the first embodiment, respectively, in different viewing angles;

Fig. 7 shows a padlock state of the handle of the first embodiment;

FIGS. 8A and 8B show schematic views of locking and unlocking, respectively, of a power distribution cabinet drawer;

Fig. 9A and 9B show the handle body of the grip of the first embodiment in different views, respectively;

FIGS. 10A and 10B show views of two add-ons from different perspectives;

FIG. 11 shows a schematic view of the push button of the handle of the first embodiment;

FIG. 12 shows a cross-sectional view of the handle of the first embodiment;

FIGS. 13 and 14 show exploded views of a handle of a second embodiment of the present disclosure, respectively, from different perspectives;

15A, 15B show schematic views of the pull rod of the handle being pulled and restored to the original position, respectively;

Fig. 16 and 17 show schematic views of a switchgear drawer provided with a handle of the second embodiment, respectively, in different viewing angles;

FIGS. 18 and 19 show schematic views of locking and unlocking, respectively, of a cabinet drawer with a handle mounted second embodiment;

FIGS. 20A and 20B show the handle body of the grip of the second embodiment from different perspectives, respectively;

FIGS. 21A and 21B show the attachment of the handle of the second embodiment in different views, respectively;

FIG. 22 shows a pull rod of the handle of the second embodiment;

Fig. 23 and 24 show cross-sectional views of the handle of the second embodiment taken along different cross-sections, respectively.

List of reference numerals

100. Handle grip

110. Handle portion

111. Handle body

112. Button accommodation part

113. Attachment piece

114. Limiting flange

115. Clamping hook

116. Guide groove

117. Mounting part

118. Hollow part

119. End wall

120. Actuating element

121. Push button

122. Guide rail

123. Through holes or grooves

130. Locking element

140. Unlocking piece

141. Flange

142. Annular groove

160. Spring

170. Bolt lock

200. Handle grip

Detailed Description

In order to make the objects, technical solutions and advantages of the technical solutions of the present disclosure more clear, the technical solutions of the embodiments of the present disclosure will be clearly and completely described below with reference to the drawings of the specific embodiments of the present disclosure. Like reference numerals in the drawings denote like parts. It should be noted that the described embodiments are some, but not all embodiments of the present disclosure. All other embodiments, which can be made by one of ordinary skill in the art without the need for inventive faculty, are within the scope of the present disclosure, based on the described embodiments of the present disclosure.

Possible implementations within the scope of the present disclosure may have fewer components, have other components not shown in the drawings, different components, differently arranged components, differently connected components, etc., than the examples shown in the drawings. Furthermore, two or more of the elements in the figures may be implemented in a single element or a single element shown in the figures may be implemented as multiple separate elements.

Unless defined otherwise, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this disclosure belongs. The terms "first," "second," and the like in the description and in the claims, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. Likewise, the terms "a" or "an" and the like do not necessarily denote a limitation of quantity. The word "comprising" or "comprises", and the like, means that elements or items preceding the word are included in the element or item listed after the word and equivalents thereof, but does not exclude other elements or items. The terms "connected" or "connected," and the like, are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", etc. are used merely to indicate relative positional relationships, which may also be changed when the absolute position of the object to be described is changed.

To solve the problems mentioned in the background art, in order to reduce the occupied volume of the handle and the unlocking button to a large extent while satisfying the due unlocking and pulling functions of the drawer, the present disclosure proposes a handle which integrates the unlocking function in addition to the functions of opening and closing the drawer. The integrated handle occupies small space and can well meet the miniaturization requirement of the device.

The handles of the present disclosure are particularly useful for drawers of power distribution cabinets, for example, mounted on the panels of the cabinet drawers. But its application is not limited thereto.

The present disclosure presents two preferred embodiments of the handle, including a first embodiment as shown in fig. 1-12, and a second embodiment as shown in fig. 13-24. Before the specific structure of each embodiment is described in detail, the common principles and features of each embodiment are first described.

The handle of the present disclosure generally includes three sections: a handle portion 110, an actuating member 120 and an unlocking member 140.

The handle portion 110 is for grasping by an operator to open and close the drawer. The handle portion 110 may have a structure suitable for being held by a hand, for example, in both exemplary embodiments of the present disclosure, the handle portion 110 has an elongated structure perpendicular to the drawing direction of the drawer.

The unlocking member 140 has a portion extending from the handle portion 110, which is configurable for unlocking a locking mechanism of the drawer. The unlocking member 140 may be embodied in the form of a lever, the end of which is used to operate a specific part of the locking mechanism to unlock it. The unlocking member 140 is movable between a non-operative position, which is a default position of the unlocking member 140, and an operative position, which is in the non-operative position when not actuated. And when the unlocking member 140 is actuated to the working position, it can unlock the locking mechanism of the drawer so that the operator can pull the drawer open.

The actuator 120 is movable relative to the handle portion 110 between an initial position and an actuated position. When the actuating member is in the initial position, that is, when no external force is applied to the actuating member, the unlocking member is in the non-working position for unlocking the locking mechanism, and when the actuating member moves to the actuating position, the unlocking member moves to the working position for unlocking the locking mechanism due to actuation of the actuating member.

The integrated handle of the present disclosure not only occupies a small space, but also is convenient to operate. In use, the operator can operate the integrated handle with one hand. For example, an operator may use a finger to trigger an actuator while holding the handle portion to unlock the drawer and directly pull the drawer open using the handle after unlocking.

A handle 100 according to a first embodiment of the present disclosure is described below in connection with fig. 1-12. Wherein fig. 1 and 2 show exploded views of the handle 100 respectively at different angles, fig. 3A and 3B show diagrams of the handle 100 respectively in different states, fig. 4A and 4B show diagrams of the button 121 of the handle being pressed and restored to an initial position respectively, fig. 5 and 6 show diagrams of a power distribution cabinet drawer provided with the handle 100 respectively at different angles, fig. 7 shows a state in which the handle 100 is provided with a latch 170, fig. 8A and 8B show diagrams of locking and unlocking of the power distribution cabinet drawer respectively, fig. 9A and 9B show diagrams of the handle body 111 of the handle 100 respectively at different angles, fig. 10A and 10B show diagrams of two attachments 113 respectively at different angles, fig. 11 shows diagrams of the button 121, and fig. 12 shows a cross-sectional view of the handle 100.

In this first embodiment, the actuator 120 of the handle 100 is a push button 121 movable relative to the handle portion 110, the push button 121 being movably mounted to the handle portion. When the button 121 is not pressed, for example, as shown in fig. 3A or 4B, it is in the initial position, and most of the button 121 is exposed from the handle portion. When the button 121 is pressed, the button 121 enters the inside of the handle portion. Where the button 121 is shown partially inside the handle portion in fig. 3B, whereas in fig. 4A the button 121 has been fully depressed, most of which is located inside the handle portion.

In this first embodiment, the unlocking member is a lever, one end of which abuts the button 121, so that when the button 121 is pressed, the lever is pushed in the same direction as shown in fig. 4A, so that it can be actuated to the part for unlocking. In an embodiment not shown, there may be an intermediate piece between the button 121 and the lever.

As shown in fig. 1 and 2, the handle portion 110 preferably includes a handle body 111 and an attachment 113 coupled to the handle body 111. The handle body 111 and the additional member 113 define a movable space of the button 121. During pressing and releasing of the button 121, the button 121 will always be within the range of this active space, both extreme positions of the button 121 being defined by said handle body 111 and said attachment 113.

Fig. 9A and 9B show a specific structure of the handle body 111 of the handle portion 110. The handle body 111 may have a columnar structure at a middle position, and grip portions extending in two lateral directions at one end of the columnar structure to facilitate gripping by an operator. The handle body 111 may be provided with a hole through which the unlocking member 140 extends. Preferably, the handle body 111 may further include a mounting portion 117 configured for mounting to a drawer, which may be provided with holes for setting screws or other fasteners. In the preferred embodiment of the drawings, the mounting portion 117 is of unitary construction with the handle body 111 of the handle portion, but it could also be a separate mounting assembly of the handle or its handle portion. The mounting portion is spaced from the gripping portion of the handle body to facilitate gripping of the handle by an operator.

The handle body 111 has a button receiving portion, that is, a recess formed in the handle body 111. The button housing 112 constitutes a part of the movable space of the button 121. When the button 121 is depressed, it at least partially enters the button housing 112.

In the present disclosure, it is preferable to have two additional portions 113, and the two additional portions 113 are independent of each other and may be located at both sides of the button 121 in mirror symmetry. However, in an embodiment not shown, an integral attachment can also be provided. Preferably, the attachment 113 is connected to the handle body 111 by a snap-fit structure. As shown in fig. 10A, each of the attachment pieces 113 is provided with a hook 115, and the hook 115 can be engaged with a corresponding engagement wall of the handle body 111, so that the attachment pieces 113 can be connected by pressing them toward the handle body 111. The number of hooks 115 is preferably two for each attachment.

As shown in fig. 10A and 10B, the first attachment member 113 and the second attachment member 113 each have a stopper flange 114 for restricting the initial position of the button 121. The stop flange 114 may be located at the edge of each attachment member 113 near the button 121. In the embodiment of the drawings, the button 121 has an arcuate rear edge and accordingly, the stop flange 114 also has a corresponding arcuate configuration. For each attachment, there may be two arcuate stop flanges that cooperate to ensure the outermost position of the button 121.

Preferably, the first attachment member 113, the second attachment member 113 and the handle body 111 each have a guide feature for guiding the sliding of the button 121. More preferably, the sliding surface of the button 121 is provided with a guide rail 122, and the first attachment 113, the second attachment 113, and the side wall of the button receiving part 112 of the handle body 111 are provided with a guide groove 116 for receiving the guide rail. The cooperation between the guide groove 116 and the guide rail 122 makes sliding of the button 121 smoother when the button 121 moves between the initial position and the actuated position. In an embodiment not shown, a guide groove may be provided on the button 121, and guide rails for being received in the guide groove are provided in the first attachment 113, the second attachment 113, and the handle body 111.

Preferably, the handle also has a return spring 160 for returning the unlocking member 140 and the button 121 to the original position after releasing the button 121. The return spring 160 is preferably disposed in the button housing 112 between the flange 141 of the unlocking member and the handle body. The position of the return spring is clearly shown in fig. 12. Taking the direction in fig. 12 as an example, when the button 121 is pressed, the button 121 pushes the unlocking member to the left, and the return spring is compressed between the flange 141 of the unlocking member and the handle body (specifically, the bottom wall of the button accommodation portion 112 of the handle body). When the pressure on the button 121 is removed, the restoring force of the spring pushes the unlocking member and the button 121 back to the right by pushing the flange 141 of the unlocking member. Through the structural design and the relative position design of reset spring, button and release in this disclosure, reset spring can make release and button reset simultaneously.

When the handle is applied to a power distribution cabinet, as shown in fig. 8A and 8B, the unlocking member can be used to trigger the locking element 130 of the power distribution cabinet. In fig. 8B, the button is pressed, so that the unlocking member moves towards the left direction in the drawing, so that the locking element 130 of the locking mechanism is lifted, the locking mechanism of the power distribution cabinet is unlocked, and the drawer can be opened. In fig. 8A, the button is released, the unlocking member is reset by the reset spring, and the locking member 130 descends, thereby locking the power distribution cabinet, so that the drawer cannot be pulled.

Preferably, the button 121 is provided with a through hole or slot 123 for setting the latch 170. Wherein fig. 7 shows the latch 170 disposed in the through hole or slot 123. Due to the presence of the latch 170, the button 121 cannot be pressed, and thus the drawer cannot be unlocked by pressing the button 121.

A handle 200 according to a second embodiment of the present disclosure is described below in connection with fig. 13-24. Wherein fig. 13 and 14 show exploded views of the handle 200 respectively at different angles, fig. 15A and 15B show a drawing rod of the handle pulled and restored to an initial position respectively, fig. 16 and 17 show a drawing of a power distribution cabinet drawer provided with the handle 200 respectively at different angles, fig. 18 and 19 show a drawing of locking and unlocking of the power distribution cabinet drawer mounted with the handle 200 respectively, fig. 20A and 20B show a handle body of the handle 200 respectively at different angles, fig. 21A and 21B show an attachment of the handle 200 respectively at different angles, fig. 22 shows a drawing rod of the handle 200, and fig. 23 and 24 show sectional views of the handle 200 taken along different sections respectively.

In this second embodiment, the same or corresponding parts as those of the first embodiment are denoted by the same reference numerals.

In this second embodiment, the handle portion 110 may be composed of a handle body 111 and an attachment 113. The handle body 111 may have a columnar structure at a middle position, and grip portions extending in two lateral directions at one end of the columnar structure. Preferably, the handle body 111 may further include a mounting portion 117 configured for mounting to a drawer, and the mounting portion 117 may be provided with holes for setting screws or other fasteners. In this second embodiment shown in the drawings, the mounting portion 117 is of unitary construction with the handle body 111 of the handle portion 110, but it may also be a separate mounting to the handle or handle portion thereof. The handle body 111 may be provided with a hole through which the unlocking member 140 extends.

The attachment has an elongated shape corresponding to the handle body. As shown in fig. 21B, the attachment is preferably provided with a plurality of hooks 115 for snap-fit connection with the handle body 111.

In this second embodiment, the unlocking member 140 is a lever, which functions similarly to the unlocking member of the first embodiment, but in the opposite direction of movement when unlocking, which will be described in detail below. The actuating member 120 of the handle 200 is an elongated pull rod transverse to the unlocking member 140, which may be provided with a hole in its middle position through which the unlocking member 140 extends. When the operator pulls the pull rod, the pull rod slides along the unlocking member 140.

Wherein the distal end of the unlocking member 140, i.e. the end remote from the handle portion, may be provided with an annular groove 142 for cooperation with a corresponding locking member of the drawer locking mechanism, such that when the unlocking member 140 is actuated, which moves in the direction of the handle portion, the locking member is brought along for unlocking.

Preferably, as shown in figures 23 and 24, the unlocking member is provided with a flange 141 for cooperation with the pull rod such that when the pull rod is actuated towards the actuated position, the pull rod pushes the flange to move the unlocking member to the working position.

As shown, the handle body 111 has a hollowed-out portion 118 for accommodating the tie rod, the hollowed-out portion 118 forming a space in which the tie rod moves. Wherein the end wall 119 of the hollowed-out portion 118 forms a stop defining the position of the pull rod.

Preferably, a return spring is provided between the flange 141 of the unlocking member 140 and the additional member 113 of the handle portion for returning the unlocking member and the actuating member.

With this handle 200, when the operator pulls the pull rod toward the handle portion 110, as shown in fig. 15A, the pull rod pushes the flange 141 so that the unlocking member 140 also moves toward the handle portion 110. At this time, as shown in fig. 19, the tip of the unlocking member 140 will cause the locking element 130 of the drawer locking mechanism to travel to the unlocked position, so that the drawer can be opened. When the operator releases the pull rod, the pull rod will move away from the handle portion under the influence of the return spring, as shown in fig. 15B, and at the same time, as shown in fig. 18, the locking element 130 of the drawer locking mechanism will drop to the locked position, whereby the drawer can be locked from opening.

The present disclosure also contemplates a drawer assembly comprising a drawer and a handle according to any of the foregoing embodiments, the handle being mountable on a panel of the drawer. The panel of the drawer does not need a large width dimension due to the installation of the integrated handle as described above, so that the entire drawer can be miniaturized.

The present disclosure also proposes a low voltage power distribution cabinet comprising such a drawer assembly. Also, the compact and integrated design of the integrated handle described above is advantageous for miniaturization of the entire low voltage power distribution cabinet.

The exemplary implementation of the solution proposed by the present disclosure has been described in detail hereinabove with reference to the preferred embodiments, however, it will be understood by those skilled in the art that various modifications and adaptations can be made to the specific embodiments described above and that various combinations of the technical features, structures proposed by the present disclosure can be made without departing from the scope of the present disclosure, which is defined by the appended claims.

Claims (19)

1. A handle for a drawer, comprising:

A handle portion;

an unlocking member partially extending from the handle portion and configured to unlock a locking mechanism of the drawer;

And an actuating member movable relative to the handle portion between an initial position and an actuated position to move the unlocking member, wherein when the actuating member is in the initial position, the unlocking member is in a non-operating position in which the locking mechanism is not unlocked, and when the actuating member is moved to the actuated position, the unlocking member is moved to an operating position in which the locking mechanism is unlocked due to actuation of the actuating member.

2. A handle for a drawer as recited in claim 1, wherein,

The actuator is a button movable relative to the handle portion.

3. A handle for a drawer as recited in claim 2, wherein,

The handle portion includes a handle body and an attachment coupled to the handle body, the handle body and the attachment defining a movable space of the button.

4. A handle for a drawer as recited in claim 3, wherein,

The handle body has a button receiving portion forming a part of the movable space.

5. A handle for a drawer as recited in claim 3, wherein,

The attachment is connected to the handle body by a snap-fit arrangement.

6. The handle for a drawer as recited in claim 4, wherein,

The attachment includes a first attachment and a second attachment independent of each other, and the button is located between the first attachment and the second attachment.

7. The handle for a drawer as recited in claim 6, wherein,

The first attachment member and the second attachment member each have a limit flange for limiting the initial position of the button.

8. The handle for a drawer as recited in claim 6, wherein,

The first appendage, the second appendage and the handle body each have a guide feature for guiding sliding of the button.

9. The handle for a drawer as recited in claim 8, wherein,

The sliding surface of the button is provided with a guide rail, and the side walls of the button accommodating parts of the first additional member, the second additional member and the handle body are provided with guide grooves for accommodating the guide rail.

10. A handle for a drawer as recited in claim 2, wherein,

The unlocking piece is a rod, and one end of the rod abuts against the button.

11. The handle for a drawer as recited in claim 4, wherein,

The handle also has a return spring disposed in the button receiving portion and located between the flange of the unlocking member and the handle body.

12. A handle for a drawer as recited in claim 2, wherein,

The button is provided with a through hole or a through slot for setting a latch.

13. A handle for a drawer as recited in claim 1, wherein,

The actuating member is a pull rod transverse to the unlocking member.

14. The handle for a drawer as recited in claim 13, wherein,

The unlocking member is a lever provided with a flange configured to cooperate with the lever such that when the lever is actuated towards the actuated position, the lever pushes the flange to move the unlocking member to the working position.

15. The handle for a drawer as recited in claim 14, wherein,

The handle portion includes a handle body having a hollowed-out portion for receiving a pull rod, and an attachment, and an end wall of the hollowed-out portion forms a limit stop defining a position of the pull rod.

16. The handle for a drawer as recited in claim 15, wherein,

The handle also has a return spring that abuts between the flange of the unlocking member and an attachment of the handle portion.

17. The handle for a drawer of any of claims 1-16, wherein the grip portion includes a mounting portion configured to mount to a drawer.

18. A drawer assembly, comprising:

a drawer;

The handle of any of claims 1-17, mounted on a panel of the drawer.

19. A low voltage power distribution cabinet comprising a plurality of drawer assemblies as claimed in claim 18.