CN2884795Y - Handles for industrial chassis panels - Google Patents

Abstract

A handle for panel of industrial machine case is composed of a metal base locked to panel by a screw, a plastic handle hinged to base and with an elastic plate with a barb at its free end for cooperating with the hook slot on base; the metal lining is embedded in the handle and hinged to the base together with the handle, the lining is provided with a tenon and a stop which are respectively arranged on two side walls and protrude out of the handle, the tenon can be pulled to a locking position when the handle is locked, so that the barb and a hook groove on the base are synchronously embedded into a mortise of a front crosspiece of the case and props against the front edge of the mortise, and the plastic handle combined with the metal lining is locked on the front crosspiece; the stop is abutted against the front edge of the front crosspiece when the handle is wrenched to the trip position so as to limit the wrenching range of the handle.

Description

Handles for industrial chassis panels

technical field

The utility model relates to a handle for an industrial case panel, in particular to a handle with a metal lining.

Background technique

FIG. 1 shows the appearance of an industrial chassis (subrack) for communication and the like. The function of this industrial case 90 is the same as known computer case, is used for supporting various circuit boards, data access device (for example hard disk drive), power supply; The heat inside the industrial chassis avoids heat accumulation.

There are usually some aluminum alloy panels (Front Panel, only one panel is shown in the figure) 60 in front of the above-mentioned cabinet 90, which are locked to the front crosspiece (Front Cross Rail) of the cabinet 90 by handles (Ejector Handle) 10a arranged at two ends 70. FIG. 2 shows details of the known handle 10a locked to the front rail 70 of the chassis, and FIG. 3 shows the internal shape of the known handle 10a. The handle 10 a includes a metal base 20 , which is fastened to the panel 60 by a screw, and a plastic handle 30 a , which is hinged to the base 20 by a pin 28 and can be moved relative to the base 20 . The handle 30 a has an elastic plate 32 , the free end of which forms a barb 33 , which can cooperate with the hook groove 24 on the base 20 to lock the handle 30 a with the base 20 . Two sidewalls of the handle 30a are respectively provided with a groove 38 , a tenon 39 is formed on one side of the groove 38 , and a stopper 39a is formed on the opposite side. When the handle 30a is pulled to the locking position, that is, when the barb 33 is locked with the hook groove 24 on the base 20, the tenon 38a is inserted into the mortise 71 of the front crosspiece 70 of the chassis at the same time, and withstands the mortise 71 The front edge of the handle 30a is locked with the base 20 and the front crosspiece 70 respectively in this way. When the handle 30a is pulled in the opposite direction, the lock between the handle 30a and the base 20 will be released, and at the same time, the stopper 39a will abut against the front edge of the front crosspiece 70 to limit the pulling range of the handle 30a.

In order to make the elastic plate 32 of the handle 30a have the desired elasticity, the handle 30a must be injection-molded with plastic materials, but since the hardness and strength of plastic are far lower than metal, the toughness is low, impact resistance is not good, and the stability of dimensions is not good. High and easily deformed, especially the tenon 39 used for locking with the front crosspiece 70 and the stopper 39a for preventing the handle 30a from being overturned are protruding objects, which are easy to break and lose their intended functions.

Contents of the invention

Therefore, the purpose of this utility model is to provide an improved industrial case panel handle, which has a metal lining embedded in the plastic handle, which can be locked with the front crosspiece of the case, and restricts the handle when the lock is released. The pull range can solve the problem that the plastic handle is easily damaged when it is directly matched with the front crosspiece.

The handle for the industrial case panel of the utility model includes a metal base, which is locked to the panel by a screw, and has a plastic handle, and a metal lining embedded in the handle, and the two are jointly hinged by a pin On the base; the handle has an elastic plate, the free end of which forms a barb, which can cooperate with the hook groove on the base; the inner lining has a tenon and a stop that are respectively provided on the two side walls and protrude from the outside of the handle , the tenon can be inserted into the mortise of the front crosspiece of the chassis synchronously when the handle is pulled to the lock position, so that the barb is locked with the hook groove on the base, and it will withstand the front edge of the mortise, and will be connected with the The plastic handle combined with the metal lining is locked on the front crosspiece; the stopper abuts against the front edge of the front crosspiece when the handle is turned to the unbuckled position to limit the pulling range of the handle.

In another embodiment, the elastic plate is provided with a push button, which exerts pressure on the elastic plate by pressing the button to cause the displacement of the elastic plate, so that the barb at the free end leaves the hook groove and releases the pressure. Locking handle and base.

In another embodiment, a torsion spring is encircled on the outer periphery of the pin, which has two load-bearing arms, the first load-bearing arm is supported by the metal base, and the second load-bearing arm is supported by the metal lining, and is in a bearing position. In the state of torque, it is added to the metal inner lining to generate an elastic restoring force, and at the same time added to the handle through the inner lining, so that the lock between the handle and the base, and the inner lining and the front crosspiece can be more secure.

As for the detailed technical content and other purposes and characteristics of the present utility model, it can be fully understood by referring to the description of the preferred embodiments in conjunction with the drawings below.

Description of drawings

Fig. 1 is the exterior view of known industrial cabinet;

Figure 2 is a partially enlarged view of Figure 1;

Fig. 3 is the sectional view of known industrial case panel handle;

Fig. 4 is the exterior view of the industrial case panel handle according to a preferred embodiment of the present invention;

Fig. 5 is an exploded view of components of the present utility model;

Fig. 6 is a sectional view of the utility model, showing the situation when the handle is pulled to the locked position;

Fig. 7 is also a sectional view of the utility model, showing that the handle is in the state of unlocking;

Fig. 8 is a partial appearance view of the utility model installed in an industrial case.

Description of main component symbols

10...handle 10a...handle

20...base 21...groove

22...Threaded hole 23...Rod

24...Hook groove 25...Side wall

26...pin hole 27...screw hole

28...Pin 30...Handle

30a...handle 31...notch

32...elastic plate 33...barb

34...chamber 35...side wall

36...pin hole 37...mounting hole

38... groove 39... tenon

39a...stopper 40...lining

41...side wall 42...pin hole

43... groove 44... tenon

45...stop gear 50...press button

51...plug-in 55...torsion spring

56...spring body 57...first bearing arm

58...second bearing arm 60...panel

70...front crosspiece 71...mortise

80…rails 90…industrial chassis

Detailed ways

In Fig. 4, the appearance of a handle 10 for an industrial case panel is shown, Fig. 5 shows the disassembled state of its components, and Fig. 6 shows its internal shape, which can be used to illustrate the technical content of the present utility model. The handle 10 is mainly composed of a base 20 , a handle 30 and an inner liner 40 ; wherein the base 20 is die-cast of zinc alloy and is surface treated. The main purpose of surface treatment is for aesthetics, increasing sales ability and competitiveness, but it also has important functions such as resisting wear, preventing electrolytic separation, and avoiding the erosion of corrosive air. The structure of the base 20 is the same as that of the known handle 10a, so the parts that are the same as those of the known base shown in FIG. 3 are marked with the same symbols. The base 20 mainly includes: a groove 21 for inserting the end of the panel 60, and a threaded hole 22 for screwing in a screw (not shown) passing through the panel 60, so that the base 20 is locked on the panel 60; a rod portion 23, which can be inserted into a circuit board guide rail (Card Guide) 80 (Fig. 8), to contact with the conductive sheet (not shown) on the guide rail 80, so that the circuit board (not shown) can Through the contact between the conductive sheet and the rod portion 23, it is grounded to the chassis 90, providing a path for the circuit board to release the accumulated charge; a hook groove 24, which can cooperate with the barb 33 of the handle 30, to lock the handle 30 to the base 20 a bracket, which is constituted by two facing side walls 25, each side wall 25 has a pin hole 26, for a pin 28 to pass through, so that the plastic handle 30 is hinged to the base 20; and a screw hole 27, A screw (not shown) is provided to lock the base 20 to the front rail 70 of the chassis 90 .

The handle 30 is injection molded from plastic material, the biggest difference between it and the known handle 30a is that the former is not designed to lock with the front crosspiece 70, but a metal inner lining 40 is used to lock with the front crosspiece 70 instead. Therefore, the same parts as the known handle 30a shown in FIG. 3 are still marked with the same symbols. The handle 30 has a slit 31, thereby cutting out an elastic plate 32, when the force is applied to the elastic plate 32, the elastic plate 32 will displace; when the force disappears, the elastic plate 32 will return to its original position. The free end of the elastic plate 32 forms a barb 33 which can cooperate with the hook groove 24 on the base 20 to lock the handle 30 with the base 20 ( FIG. 6 ). Since the elastic plate 32 has the above-mentioned elasticity, and the shape of the barb 33 and the hook groove 24 has a slope and a circular arc; therefore, when the handle 30 is pulled toward the locking direction, the barb 33 will automatically engage with the hook groove 24. Conversely, when the handle 30 is pulled toward the unbuckle direction, the barb 33 can also leave the hook groove 24 smoothly. FIG. 7 shows the state when the lock between the handle 30 and the base 20 is released. The handle 30 is a housing member defining a cavity 34 therein for receiving a metal liner 40 . Two sidewalls 35 of the handle 30 each have a pin hole 36 for receiving the above-mentioned pin 28 , so that the handle 30 is hinged to the base 20 , so that the handle 30 can be rotated on the base 20 for operation.

The inner liner 40 is also formed by die-casting zinc alloy, and its shape is roughly the same as that of the chamber 34 of the handle 30 , so it can be inserted into the chamber 34 of the handle 30 . Since the inner liner 40 is embedded in the handle 30 in order to improve the strength of the handle 30, no surface treatment is necessary. The two side walls 41 of the inner liner 40 each have a pin hole 42, which can receive the above-mentioned pin 28, so that the inner liner 40 and the handle 30 can be hinged to the base 20 synchronously by the pin 28; A groove 43 is provided, a tenon 44 is formed on one side bounding the groove 43 , and a stopper 45 is formed on the opposite side. When the inner liner 40 is loaded into the handle 30, the tenon 44 and the stopper 45 protrude from the outside of the handle 30, so when the handle 30 is pulled to the locked position, that is, the barb 33 and the hook groove 24 on the base 20 When locked together, the lining 40 combined with the handle 30 moves with the handle 30, so that the tenon 44 is inserted into the mortise 71 of the front crosspiece 70 of the chassis at the same time, and withstands the front edge of the mortise 71 (Figure 8) , to achieve the purpose of locking the plastic handle 30 with the front crosspiece 70 through the metal inner lining 40 . When the handle 30 is pulled in the opposite direction, the lock between the handle 30 and the base 20 will be released until the stopper 45 abuts against the front edge of the front crosspiece 70. Now even if the handle 30 is continued to be pulled, the handle 30 will no longer move. The groove 43 on the lining 40 is to avoid the distance from the front edge of the front crosspiece 70 to the front edge of the mortise 71, so that the tenon 44 can go deep into the mortise 71.

In order to facilitate the unlocking of the handle 30 and the base 20, in a preferred embodiment, the elastic plate 32 provides a mounting hole 37 for installing a push button 50, the push button 50 has a generally V-shaped insert 51, which can be forced through the installation hole 37, so that the push button 50 is positioned on the elastic plate 32, so that the pressure is applied to the elastic plate 32 by pressing the push button 50, causing the displacement of the elastic plate 32, Make the barb 33 at the free end leave the hook groove 24 to release the lock between the handle 30 and the base 20 .

In a preferred embodiment, the handle 10 further includes a torsion spring 55, which has a cylindrical coil spring body 56, and arms 57 and 58 formed at two ends of the spring body 56 for bearing load; wherein, the spring body 56 loops are looped on the outer periphery of the pin 28, the first bearing arm 57 is supported on the metal base 20, the second bearing arm 58 is supported on the metal lining 40, and the torsion spring 55 is in a state of bearing torque, so that a The elastic recovery force is added to the inner liner 40 and to the handle 30 through the inner liner 40, so that the lock between the handle 30 and the base 20, and the inner liner 40 and the front crosspiece 70 can be more secure.

The utility model utilizes a metal lining 40 arranged inside the plastic handle 30 to improve its strength, so that the plastic handle 30 can be locked with the mortise 71 of the front rail 70 through the tenon 44 of the metal lining 40, and When unbuckled, the stopper 45 of the metal lining 40 abuts against the front edge of the front crosspiece 70 to limit the pulling range of the plastic handle 30, and the existing handle 10a directly uses the plastic handle 30a to cooperate with the front crosspiece 70, Compared with easy damage, it has outstanding technical characteristics and obvious progress.

Of course, the above-mentioned embodiments can be modified without departing from the scope of the present utility model, so all matters contained in the above description and shown in the accompanying drawings should be regarded as illustrative rather than limiting the rights of the present utility model range of requirements.

Claims (4)

1, a kind of industrial cabinet panel handle comprises:

One metab, it is locked to the end of cabinet panel, and has a hook groove;

One plastic cement handle, it has an elastic panel, and the free end of this elastic panel forms a barb;

It is characterized in that, having a metal inner lining is embedded in the plastic cement handle, this metal inner lining and plastic cement handle are articulated in base synchronously by a pin member, and have and be located at two sidewalls respectively, and protruding in the trip and the stop of plastic cement handle outside, this trip is pulled to the snap close position at the plastic cement handle, make hook groove on barb and the metab mutually during snap close, embed the mortise of the preceding crosspiece of cabinet synchronously, and withstand the leading edge of mortise, will be buckled in preceding crosspiece with the plastic cement handle lock that metal inner lining combines; This stop the plastic cement handle by switching when triping the position, the leading edge of crosspiece before being resisted against is with the amplitude of pulling of restriction plastic cement handle.

2, industrial cabinet panel handle according to claim 1, it is characterized in that peripheral part snare one torque spring of this pin member wherein, this spring have two arms that bear load, first holds the lotus arm props up and is held in metab, and second holds the lotus arm props up and be held in metal inner lining.

3, industrial cabinet panel handle according to claim 1 and 2 is characterized in that wherein this elastic panel is provided with a press button, can exert pressure to elastic panel via the effect of pressing press button, causes the displacement of elastic panel.

4, industrial cabinet panel handle according to claim 3 is characterized in that wherein this elastic panel has an installing hole, and this press button has V-shaped without exception plug-in unit, and it can force and pass this installing hole, and press button is positioned on the elastic panel.

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