Hidden drawer handles

Abstract

The present invention discloses a hidden drawer handle, which belongs to the technical field of switch cabinets. The present invention includes a frame-shaped base, a mounting arm is formed at the front end of the frame-shaped base, a manipulation arm is formed on the side of the frame-shaped base corresponding to the mounting arm, one end of the manipulation arm is connected to the mounting arm through an upper cross arm, and the other end is connected to a lower cross arm, a first hanging groove is provided on the frame-shaped base, and the frame-shaped base can be rotatably fixed on the drawer, so that when the drawer is closed, the hidden drawer handle can be received in the drawer by rotation, and the hidden drawer handle can be hung on the drawer through the first hanging groove. The hidden drawer handle provided by the present invention can facilitate the use of force when pushing and pulling the drawer (i.e., the equipment carrier), can be hidden in the drawer after closing the drawer, and can be conveniently closed; the operating mechanism in the drawer can be conveniently locked and unlocked.

Description

Technical Field

[0001] The invention belongs to the technical field of switch cabinets, and in particular relates to a novel hidden drawer handle. Background Art

[0002] Low-voltage switchgear is a device that completes the control, protection, conversion and distribution of electric energy in low-voltage power supply systems. It is widely used in industrial enterprises, public places and residential buildings. At present, low-voltage switchgear in my country is still mainly fixed panel and withdrawable.

[0003] Drawer-type switchgear is a closed switchgear with a high level of protection. Its structure adopts a closed shell made of steel plates. The electrical components of the incoming and outgoing line circuits are installed in a withdrawable component to complete a certain power supply or distribution function. Drawer-type switchgear is currently the mainstream low-voltage switchgear.

[0004] The drawers in the drawer-type switch cabinet are generally set with working position (switch connection position), test position and disconnection position (switches are separated from each other). Most mainstream drawers realize the circuit contact state of separation position, test position and working position through the insertion depth of the drawer itself. The drawer is fully pushed in, the main circuit socket is connected to the plug, the control circuit plug is connected to the socket, and the drawer is in the working position. The drawer is pulled out a certain distance, the main circuit socket and the plug are in the disconnected state, the control circuit plug is connected to the socket, and the drawer is in the test position. The drawer is fully pulled out, the main circuit plug is disconnected from the socket, the control circuit socket and the plug are also completely separated, and the drawer is in the disconnected position. This method requires the operator to plug and unplug the drawer to complete the switching of the drawer position. In addition, when installing and removing the drawer, it is also necessary to plug and unplug the drawer. Due to the gravity of the drawer itself and the friction between the drawer and the cabinet, there is a large resistance when plugging and unplugging the drawer, and the operation is more laborious.

[0005] There are two types of drawers currently used in drawer switch cabinets. One is to fix the handle on the drawer panel, and the drawer panel is fixed on the drawer. Although this solution is more labor-saving to plug and unplug the drawer through the handle, it cannot meet the protection level requirements when a high protection level is required. The other is that the drawer panel is fixed on the drawer, and there is no handle on the drawer. When this structure is used, although the cabinet door can be closed when the drawer is inserted in place, it can meet the high protection level requirements, but there is greater resistance when plugging and unplugging the drawer, and the operation is more laborious.

[0006] On the other hand, when the switch cabinet is in operation, the drawer is positioned in the working position through its internal locking mechanism, that is, the drawer cannot be opened by external force; therefore, if you want to open the drawer, you must first unlock the locking mechanism in the drawer, and then pull out the drawer; in the prior art, in order to achieve the purpose of effective unlocking, a push-in button is often provided on the handle, and the button is connected to a push rod, so that when the drawer needs to be pulled out, the button can be pushed and the push rod can be driven to unlock the drawer, or a lever, torsion spring and other components are provided on the handle to move the lever, and the lever pushes the push rod to unlock, and the torsion spring automatically resets.

[0007] The Chinese patent application with application number 201710563480.6 discloses a drawer handle specially used for a switch cabinet, comprising a frame-shaped base, a mounting arm is formed at the front end of the frame-shaped base, a mounting hole for fastening the frame-shaped base to a drawer panel is provided on the mounting wall, a manipulation arm is formed on the side of the frame-shaped base corresponding to the mounting wall, an upper cross arm and a lower cross arm are respectively connected between the manipulation arm and the mounting arm, and is characterized in that: a base plate and a guard plate buckled on the base plate are provided on the frame-shaped base at the intersection of the upper cross arm and the manipulation arm, and a torsion spring is provided on the base plate. The torsion spring is hinged with a lever, the torsion spring has a first rotating arm and a second rotating arm respectively, a clamping groove for circumferentially limiting the first rotating arm is formed at a position on the base plate corresponding to the first rotating arm, a convex block abutting against the second rotating arm is formed at a position on the lever corresponding to the second rotating arm, the lever at least partially extends into the upper cross arm and forms a push part, a slide groove is provided on the push part, a travel groove for accommodating the swing amplitude of the push part is provided in the upper cross arm, and a push rod that can slide laterally is provided in the upper cross arm, and one end of the push rod forms a sliding connection in the slide groove. The drawer handle dedicated to the switch cabinet is fastened to the outside of the drawer panel, the cabinet door cannot be closed by using the drawer handle, and the structure is complex and the parts are easily damaged. Summary of the invention

[0008] The purpose of the present invention is to provide a drawer handle that can be used to plug and unplug a drawer in a drawer switch cabinet conveniently and labor-savingly. After the drawer is closed, the drawer handle can be hidden in the drawer, making it convenient to close the cabinet door; the structure is simple, and the operating mechanism in the drawer can be easily locked and unlocked.

[0009] Specifically, the present invention is implemented by adopting the following technical scheme: comprising a frame-shaped base, a mounting arm is formed at the front end of the frame-shaped base, a manipulation arm is formed on the side of the frame-shaped base corresponding to the mounting arm, one end of the manipulation arm is connected to the mounting arm through an upper cross arm, and the other end is connected to a lower cross arm, a first hanging groove is provided on the frame-shaped base, the frame-shaped base can be rotatably fixed on the drawer, so that when the drawer is closed, the hidden drawer handle can be stored in the drawer by rotation, and the hidden drawer handle can be hung on the drawer through the first hanging groove. When the drawer needs to be pulled outward or pushed inward, the hidden drawer handle is hung on the drawer through the first hanging groove; when the drawer is pushed into place, the hidden drawer handle can be stored in the drawer, which is convenient for closing the cabinet door and ensures that the protection level requirements are met.

[0010] Furthermore, a limiting hole is provided on the frame-shaped base, and the frame-shaped base is rotatably fixed on the drawer through the limiting hole and a limiting member matched with the limiting hole.

[0011] Furthermore, the limiting hole is a waist-shaped pin hole, and the limiting member is a pin.

[0012] Furthermore, a fixing structure is further included, the fixing structure is fixedly connected to the drawer, and the hidden drawer handle can be hung on the fixing structure through the first hanging groove. At this time, the hidden drawer handle is relatively fixed to the drawer, and the drawer can be pulled by the hidden drawer handle.

[0013] Furthermore, the drawer is provided with a plug plate, and the hidden drawer handle further includes a plug plate support angle, and when the hidden drawer handle rotates, the plug plate support angle drives the plug plate connected thereto to rise or fall, thereby unlocking or locking the operating mechanism or the drawer in the drawer.

[0014] Furthermore, it further comprises a second hanging groove, and a notch is provided on the fixing structure, and the hidden drawer handle can be hung on the edge of the notch through the second hanging groove.

[0015] Furthermore, a limit plate is provided at the junction of the lower cross arm and the second hanging groove, and when the drawer is pushed inward by the hidden drawer handle, the second hanging groove is in close contact with the limit plate on the fixed structure, and together with the first hanging groove, it becomes a point of force between the hidden drawer handle and the drawer, so that the drawer is subjected to balanced force, and the stability of the movement when the drawer is pushed inward is ensured.

[0016] Furthermore, the hidden drawer handle is made of elastic-plastic material, so that the hidden drawer handle has a certain rigidity and can be deformed appropriately.

[0017] Furthermore, there is at least one hidden drawer handle, which is distributed on the front side of the drawer.

[0018] Furthermore, the control arm is provided with anti-slip grooves.

[0019] The beneficial effects of the present invention are as follows: the hidden drawer handle of the present invention can realize the convenient and labor-saving plugging and unplugging of the drawer handle of the drawer in the drawer switch cabinet, and after closing the drawer, the drawer handle can be hidden in the drawer, which is convenient for closing the cabinet door; the structure is simple, and the operating mechanism in the drawer can be conveniently locked and unlocked, and it can be used in a drawer switch cabinet with a high protection level. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional diagram of a hidden drawer handle according to an embodiment of the present invention.

[0021] Figure 2 It is a front view of a hidden drawer handle according to an embodiment of the present invention.

[0022] Figure 3 It is a top view of the hidden drawer handle according to an embodiment of the present invention.

[0023] Figure 4 yes Figure 3 AA surface section view in.

[0024] Figure 5 It is a three-dimensional diagram of a plugboard according to an embodiment of the present invention.

[0025] Figure 6 The figure is a schematic diagram of the positional relationship between the hidden drawer handle and the drawer according to an embodiment of the present invention.

[0026] Figure 7 It is a schematic diagram of a hidden drawer handle according to an embodiment of the present invention when it is hidden in a drawer.

[0027] Figure 8 It is a schematic diagram of a hidden drawer handle according to an embodiment of the present invention being hung on a drawer.

[0028] Numbers in the figure: 1-mounting arm, 2-operating arm, 3-upper cross arm, 4-lower cross arm, 5-pin hole, 6-first hanging slot, 7-plug plate support angle, 8-second hanging slot, 9-plug plate, 10-fixing structure, 11-protrusion, 12-through hole, 13-pin, 14-limiting plate. DETAILED DESCRIPTION

[0029] The present invention is further described in detail below in conjunction with embodiments and with reference to the accompanying drawings.

[0030] Embodiment 1:

[0031] One embodiment of the present invention is a hidden drawer handle. Figure 1 to Figure 4The hidden drawer handle comprises a frame-shaped base, a mounting arm 1 is formed at the front end of the frame-shaped base, a manipulation arm 2 is formed on the side of the frame-shaped base corresponding to the mounting arm 1, one end of the manipulation arm 2 is connected to the mounting arm 1 through an upper cross arm 3, and the other end is connected to a lower cross arm 4, and a waist-shaped pin hole 5, a first hanging groove 6 and a second hanging groove 8 are provided on the frame-shaped base. Figure 7 and 8 As shown, the fixed structure 10 is fixedly connected to the drawer, and the pin 13 and the pin hole 5 on the frame-shaped base cooperate to fix the frame-shaped base rotatably on the fixed structure 10. The pin hole 5 can move linearly relative to the pin 13 along the length direction of the pin hole 5. The hidden drawer handle can be hung on the upper edge of the fixed structure 10 through the first hanging groove 6, and the second hanging groove 8 can pass through the notch on the fixed structure 10 and hang on the edge of the notch. The operating arm 2 is provided with anti-slip grooves, so that the hidden handle can be operated with a firm force. Preferably, the second hanging groove 8 is as follows Figure 1 and 7 The hook-shaped structure shown in the figure is formed. When an external force acts on the operating arm 2, the second hanging groove 8 formed by the hook-shaped structure completely limits the edge of the notch on the fixing structure 10 therein, thereby improving the operational stability of the second hanging groove 8. In addition, a second hanging groove 8 may be provided at the junction of the lower cross arm and the second hanging groove 8. Figure 1 The limit plate 14 shown is used for pushing the drawer by the hidden drawer handle, so that the edge of the notch on the fixed structure 10 can abut against the limit plate, thereby ensuring the effectiveness of the second hanging groove 8 in the process of pushing the drawer. The second hanging groove 8 is used to increase the force point between the hidden drawer handle and the drawer when pulling the drawer outward or pushing it inward, so that the drawer is balanced in force, ensuring the stability of the movement when the drawer is pulled outward or pushed inward by the hidden drawer handle.

[0032] The structure of the plug board 9 is shown in FIG. Figure 5 The plug plate 9 is provided with a protrusion 11, which corresponds to the corresponding notch provided on the drawer, and is inserted into the notch or not inserted into the notch as the hidden drawer handle rotates. The plug plate 9 is also provided with a through hole 12, and when the drawer handle is in use, the plug plate support angle 7 of the hidden drawer handle passes through the through hole 12 to lift the plug plate 9.

[0033] Reference Figure 6 , a hidden drawer handle is arranged on each side of the drawer, so that two hands can pull or push the drawer at the same time. Of course, a hidden drawer handle can also be arranged on the front of the drawer.

[0034] Reference Figure 7When the drawer is closed, the hidden drawer handle is stored in the drawer, and the cabinet door outside the drawer can be closed at this time. The plug plate 9 is inserted into the notch on the operating mechanism in the drawer, so that the corresponding operating mechanism is locked by the plug plate, thereby preventing the operating mechanism in the drawer from being operated incorrectly. The plug plate 9 can also be inserted into the notch on the cabinet under the drawer bottom plate, so that the drawer is locked by the plug plate 9, thereby preventing the drawer from being pulled out. The plug plate 9 can also be inserted into the notch of other components to achieve the corresponding locking function. The shape of the plug plate 9 is not limited to Figure 5 The structure shown can also be other structures, as long as the structure used can achieve the above functions. The cooperation between the plug board 9 and the plug board support angle 7 is not limited to Figure 1 The method described may also be other connection methods, and the connection method used can be any one as long as it can achieve the above functions.

[0035] Reference Figure 8Before the drawer needs to be pulled or pushed by the hidden drawer handle, the hidden drawer handle is first rotated to a certain angle (for example, 90 degrees). At this time, the plug-in plate support angle 7 passes through the through hole 12 on the plug-in plate 9, and the plug-in plate 9 is lifted up, and the operating mechanism or drawer in the drawer is unlocked by the rising position of the plug-in plate 9. When the hidden drawer handle is rotated to the final position, the first hanging groove 6 of the hidden drawer handle is hung on the upper edge of the fixed structure 10, and the second hanging groove 8 passes through the notch on the fixed structure 10 and is hung on the edge of the notch. At this time, the hidden drawer handle and the drawer are relatively fixed, and the drawer can be pulled by the hidden drawer handle. When the drawer needs to be closed, the drawer is pushed by the hidden drawer handle. After the drawer is pushed into place, the hidden drawer handle is lifted upward, so that the first hanging groove 6 and the second hanging groove 8 are disengaged from the fixed structure 10, and the hidden drawer handle is rotated into the drawer by a certain angle (for example, 90 degrees), and the hidden drawer handle is received into the drawer. At this time, the abutment effect of the plug-in plate support angle 7 on the plug-in plate 9 is released, and the plug-in plate 9 drops into the corresponding notch of the operating mechanism or the drawer in the drawer under the action of gravity, and the operating mechanism or the drawer in the drawer is locked. Preferably, the hidden drawer handle is made of elastic-plastic material, such as nylon plus glass fiber, so that the handle has a certain rigidity and can be deformed appropriately. Specifically, when the drawer is pulled outward by the hidden drawer handle, the gap between the second hanging groove 8 and the fixed structure 10 is eliminated, and the second hanging groove 8 is close to the fixed structure 10, and together with the first hanging groove 6, it becomes the fulcrum between the hidden drawer handle and the drawer; when the drawer is pushed inward by the hidden drawer handle, the second hanging groove 8 is close to the limit plate 14 on the fixed structure 10, and together with the first hanging groove 6, it becomes the fulcrum between the hidden drawer handle and the drawer. The above rotation angle is also only an example of this embodiment, and the frame-shaped base, the first hanging groove 6, the second hanging groove 8 and the plug-in plate support angle 7 with different structures or positional relationships can be used to rotate the hidden drawer handle to different rotation angles accordingly, as long as the frame-shaped base, the first hanging groove 6, the second hanging groove 8 and the plug-in plate support angle 7 can achieve the above functions.

[0036] Although the present invention has been disclosed as above with preferred embodiments, the embodiments are not intended to limit the present invention. Any equivalent changes or modifications made without departing from the spirit and scope of the present invention also belong to the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the content defined by the claims of this application.

Claims

1. A hidden drawer handle, characterized in that: It includes a frame-shaped base and a fixing structure fixedly connected to the drawer; A mounting arm is formed at the front end of the frame-shaped base, and a manipulation arm is formed on the frame-shaped base at a side corresponding to the mounting arm, one end of the manipulation arm is connected to the mounting arm through an upper cross arm, and the other end is connected to the lower cross arm. A first hanging groove is provided on the frame-shaped base, and the frame-shaped base can be rotatably fixed on the drawer, so that when the drawer is closed, the hidden drawer handle can be rotated and stored in the drawer, and the hidden drawer handle can be hung on the fixed structure through the first hanging groove; The hidden drawer handle further includes a second hanging groove, which is formed by a hook-shaped structure, and a notch is provided on the fixed structure, so that the hidden drawer handle can pass through the notch through the second hanging groove and hang on the edge of the notch, and the second hanging groove completely limits the edge of the notch therein; When the drawer is pulled outward by the hidden drawer handle, the second hanging groove is close to the fixed structure, and together with the first hanging groove, it becomes a fulcrum between the hidden drawer handle and the drawer; when the drawer is pushed inward by the hidden drawer handle, the second hanging groove is close to the fixed structure, and together with the first hanging groove, it becomes a fulcrum between the hidden drawer handle and the drawer; The drawer is also provided with an inserting plate, and the hidden drawer handle further comprises an inserting plate supporting angle. When the hidden drawer handle rotates, the inserting plate supporting angle drives the inserting plate to descend or ascend, thereby locking or unlocking the drawer.

2. The hidden drawer handle according to claim 1, characterized in that: The frame-shaped base is provided with a limiting hole, and the frame-shaped base is rotatably fixed on the drawer through the limiting hole and a limiting member matched with the limiting hole.

3. The hidden drawer handle according to claim 2, characterized in that: The limiting hole is a waist-shaped pin hole, and the limiting member is a pin.

4. The hidden drawer handle according to claim 1, characterized in that: A limit plate is arranged at the junction of the lower cross arm and the second hanging groove.

5. The hidden drawer handle according to claim 1, characterized in that: The hidden drawer handle is made of elastic-plastic material.

6. The hidden drawer handle according to claim 1, characterized in that: There is at least one hidden drawer handle, which is distributed on the front side of the drawer.

7. The hidden drawer handle according to claim 1, characterized in that: The operating arm is provided with anti-slip grooves.

Images