Locking device suitable for airborne electronic case

Abstract

The utility model discloses a locking device suitable for an airborne electronic case, which comprises a shell, a pressing rod and a plate key, an installation cavity is arranged in the shell, the pressing rod and the plate key are rotatably connected with the shell, a locking structure is arranged between the plate key and the pressing rod in a matched mode, an elastic piece is arranged in the plate key and comprises a first clamp spring and a second clamp spring, and the first clamp spring and the second clamp spring are arranged in the installation cavity. A first special-shaped groove and a second special-shaped groove are formed in the plate key, one end of the first clamping spring extends into the first special-shaped groove, the other end of the first clamping spring abuts against the pressing rod, one end of the second clamping spring extends into the second special-shaped groove, the other end of the second clamping spring abuts against the inner wall of the shell, and the two ends of the first clamping spring and the two ends of the second clamping spring are each provided with a bent part. The first special-shaped groove and the second special-shaped groove each comprise a transition groove and a limiting groove, the transition grooves and the limiting grooves are matched to form an L shape, the first clamping spring or the second clamping spring stretches into the limiting grooves through the transition grooves to be matched with the limiting grooves in a limiting mode, the reset effect of the plate key is good, the pressing rod pops up quickly, the locking effect is good, and the elastic piece is not prone to falling off.

Description

TECHNICAL FIELD

[0001] The utility model relates to locking device technical field, especially in the locking device suitable for airborne electronic machine case. BACKGROUND

[0002] Airborne electronic equipment machine case locking device is a kind of device that is directly operated by hand and realizes the quick locking, quick disassembly and anti-loose function of machine case, when locking device is used to fix airborne electronic equipment machine case on vibration reduction frame, mounting frame or cabinet etc., locking device needs to cooperate with the positioner on electronic equipment vibration reduction frame or mounting frame or cabinet etc., to realize the locking and fixing of machine case.In prior art, locking device usually includes shell, press bar, unlocking key and several elastic members, press bar is movably connected with shell, press bar cooperates with positioner to realize locking function, unlocking key is usually arranged on shell for unlocking of press bar, elastic member is usually arranged in shell to provide elastic force, for reset of unlocking key and ejection of press bar, press bar is pressed into shell to make one end of press bar lock with positioner, the other end of press bar locks with unlocking key, to play the role of locking machine case, elastic member acts on unlocking key to make unlocking key have the tendency to move towards press bar, to ensure that press bar and unlocking key are locked;When unlocking is needed, press unlocking key to make press bar and unlocking key unlock, press bar is ejected under the action of elastic member, to complete the unlocking of machine case on electronic equipment vibration reduction frame or mounting frame or cabinet etc., but the effect of conventional elastic member is often not good in actual application, it is difficult to achieve ideal reset and ejection effect, conventional elastic member such as spring is easy to cause unstable locking force, trigger false lock or accidental unlocking risk due to its own structural characteristics and interference of external environment in the scene of vibration, and in prior art, the mounting mode of elastic member is not firm enough, elastic member can gradually loosen, shift or even fall off in the scene of vibration, affecting use, so it is necessary to improve. CONTENT OF UTILITY MODEL

[0003] The utility model aims at the defects and deficiencies of prior art, provide a kind of locking device suitable for airborne electronic machine case, simple and reasonable structure, easy operation, the two ends of first snap spring and second snap spring are provided with bending part, so that first snap spring and second snap spring produce certain elastic deformation after installation, pre-tightening force is applied, so that the reset effect of plate key is better, the response of press bar ejection is faster, in the scene of vibration, it can also have stable locking force, first snap spring is limitedly cooperated with first special-shaped slot, second snap spring is limitedly cooperated with second special-shaped slot, the situation that first snap spring and second snap spring fall off can be avoided, to improve the stability and reliability of locking device.

[0004] To achieve the above object, the utility model adopts the following technical scheme:

[0005] The utility model relates to a locking device suitable for airborne electronic machine case, including shell, press bar and board key, be equipped with the installation cavity for containing press bar and board key in the shell, the first end rotatable with shell connection of press bar, board key rotatable with shell connection, and board key and the second end of press bar are equipped with locking structure between cooperation and disposition, and press bar locks with board key through locking structure, and board key is equipped with elastic part in, the elastic part includes first snap spring and second snap spring, and board key is equipped with first special-shaped groove and second special-shaped groove respectively, one end of first snap spring stretches into first special-shaped groove, and the other end of first snap spring stretches out from the slot mouth of first special-shaped groove and is matched with press bar, one end of second snap spring stretches into second special-shaped groove, and the other end of second snap ring stretches out from the slot mouth of second special-shaped groove and is matched with the inner wall of shell, and both ends of first snap spring and second snap ring are equipped with bending part, first special-shaped groove and second special-shaped groove all include transition groove and the limiting slot of communication with transition groove, and transition groove and limiting slot cooperate and present'L'shape setting, and first snap spring or second snap ring passes through the transition groove and stretches into limiting slot and is matched with limiting slot limit.

[0006] Further, the transition groove is arranged in a V shape.

[0007] Further, the bottom of the limiting slot is arranged in a rounded corner.

[0008] Further, the locking structure includes a first lock hook arranged on the second end of the press bar and a lock slot arranged on the board key, and the first lock hook and the lock slot are matched and locked.

[0009] Further, the board key is provided with an inclined surface above the lock slot, and the press bar is provided with a circular arc transition surface matched with the inclined surface.

[0010] Further, the first end of the press bar is further provided with a second lock hook for locking.

[0011] Further, the press bar is provided with a plurality of first through holes for weight reduction.

[0012] Further, the board key is provided with a plurality of second through holes for weight reduction.

[0013] Further, when the press bar is locked with the board key through the locking structure, the upper plane of the press bar is parallel to the upper plane of the shell.

[0014] The utility model discloses an advantageous effect for a locking device suitable for airborne electronic machine case, locking device is installed to electronic machine case through the shell, when electronic machine case is fixed to electronic equipment damping frame or mounting frame or cabinet etc., and the locking device on electronic machine case needs to cooperate with the positioner on electronic equipment damping frame or mounting frame or cabinet etc., in this embodiment, the first end of pressure rod is provided with the second lock hook for locking, realizes locking function through the second lock hook and positioner cooperation, specifically, the second lock hook needs to be buckled into the positioner, then the pressure rod is pressed into the installation cavity, makes the upper plane of pressure rod with the upper plane of shell parallel, the second end of pressure rod is locked through locking structure and board key, plays the role of clamping and fixing machine case, completes the installation and locking of electronic machine case on electronic equipment damping frame or mounting frame or cabinet etc.

[0015] The conventional elastic member often has poor effect in actual application, and it is difficult to achieve ideal reset and ejection effect, and the elastic member can be detached, in the utility model, reset and ejection effect are realized through the first and second clamping springs, the two ends of the first and second clamping springs are provided with bending parts, so that the first and second clamping springs produce certain elastic deformation after installation, pre-tightening force is applied, so that the reset effect of the board key is better, the response of the pressure rod ejection is faster, and stable locking force can be provided in the vibration scene, and the first clamping spring is installed into the first special-shaped groove and is limitedly matched with the first special-shaped groove, the second clamping spring is installed into the second special-shaped groove and is limitedly matched with the second special-shaped groove, the first and second special-shaped grooves are all arranged in "L" shape, so that the first and second clamping springs can not be detached, and the stability and reliability of the locking device are improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the structure schematic diagram of the utility model;

[0017] Figure 2 It is the section structure schematic diagram of the utility model;

[0018] Figure 3 It is Figure 2 The enlarged structure schematic diagram of A place in

[0019] Figure 4 It is the exploded structure schematic diagram of the utility model;

[0020] Figure 5 It is the structure schematic diagram of the shell;

[0021] Figure 6It is the structural schematic view of the plate key.

[0022] Figures 1-6 Middle: 1, shell; 11, mounting cavity; 12, first pin shaft; 13, second pin shaft; 2, pressure rod; 21, first lock hook; 22, second lock hook; 23, first through hole; 24, circular arc transition surface; 3, plate key; 31, lock groove; 32, second through hole; 33, first special-shaped groove; 34, second special-shaped groove; 35, inclined surface; 4, first circlip; 5, second circlip; 6, bending part; 7, transition groove; 8, limiting groove. DETAILED DESCRIPTION

[0023] The utility model will be further described below in combination with the drawings.

[0024] As Figures 1-6 shown in a kind of locking device suitable for airborne electronic cabinet, including shell 1, pressure rod 2 and plate key 3, refer to Figure 5 , shell 1 is equipped with the mounting cavity 11 for accommodating pressure rod 2 and plate key 3, specifically, shell 1 is made of aluminum alloy material, lighter in weight, with high corrosion resistance, pressure rod 2 and plate key 3 are made of stainless steel material, high strength, with high corrosion resistance, refer to Figure 2 , preferably, in the embodiment, the pressure rod 2 is provided with a plurality of first through holes 23 for weight reduction, the plate key 3 is provided with a plurality of second through holes 32 for weight reduction, which can effectively reduce the effect, so that locking device is more portable, convenient for operator to operate, refer to Figure 4 , the first end of pressure rod 2 is rotatably connected with shell 1 by first pin shaft 12, pressure rod 2 can rotate relative to shell 1 with first pin shaft 12 as rotating fulcrum, one end of plate key 3 is rotatably connected with shell 1 by second pin shaft 13, plate key 3 can rotate relative to shell 1 with second pin shaft 13 as rotating fulcrum, locking structure is matched between the other end of plate key 3 and the second end of pressure rod 2, pressure rod 2 is locked with plate key 3 by locking structure, to ensure the stability and reliability of connection, plate key 3 is equipped with elastic member, elastic member provides elastic force, for the reset of plate key 3 and make pressure rod 2 can pop out when unlocking, refer to Figure 2 , the elastic member includes first circlip 4 and second circlip 5, refer to Figure 3, the first special-shaped groove 33 and the second special-shaped groove 34 are arranged in the plate key 3 respectively for mounting the first snap spring 4 and the second snap spring 5, one end of the first snap spring 4 extends into the first special-shaped groove 33, the other end of the first snap spring 4 extends out of the slot of the first special-shaped groove 33 and abuts against the pressing rod 2, one end of the second snap spring 5 extends into the second special-shaped groove 34, the other end of the second snap spring 5 extends out of the slot of the second special-shaped groove 34 and abuts against the inner wall of the shell 1, the two ends of the first snap spring 4 and the second snap spring 5 are provided with the bending part 6, so that the first snap spring 4 and the second snap spring 5 are elastically deformed after installation, a pre-tightening force is applied, so that the reset effect of the plate key 3 is better, the response of the pressing rod 2 is faster, and in the vibration scene, the locking force is also stable, specifically, when the pressing rod 2 is locked with the plate key 3, the elastic force of the second snap spring 5 makes the plate key 3 have a tendency to move towards the pressing rod 2, so as to ensure that the plate key 3 is locked with the pressing rod 2; refer to Figure 3 , the first special-shaped groove 33 and the second special-shaped groove 34 both include the transition groove 7 and the limiting groove 8 connected with the transition groove 7, the transition groove 7 and the limiting groove 8 are arranged in the shape of "L", the first snap spring 4 or the second snap spring 5 extends into the limiting groove 8 through the transition groove 7 and is limitedly matched with the limiting groove 8, which can effectively avoid the situation that the first snap spring 4 and the second snap spring 5 fall off, thereby improving the stability and reliability of the locking device, the first snap spring 4 and the second snap spring 5 are respectively located on the two sides of the plate key 3, which can balance the operation torque and reduce the jamming feeling when pulling.

[0025] Preferably, refer to Figure 3 , the locking structure includes the first lock hook 21 arranged on the second end of the pressing rod 2 and the lock groove 31 arranged on the plate key 3, the first lock hook 21 is matched with the lock groove 31 to lock, which ensures the stable and reliable connection between the pressing rod 2 and the plate key 3, refer to Figure 6 , the plate key 3 is provided with the inclined surface 35 above the lock groove 31 for guiding, refer to Figure 3 , the pressing rod 2 is provided with the circular arc transition surface 24 matched with the inclined surface 35, so that the two can smoothly transition during locking, reducing wear.

[0026] Preferably, in the embodiment, the first transition groove 7 is arranged in the shape of "V", which is convenient for the installation of the first snap spring 4, and the bottom of the first limiting groove 8 is arranged in the shape of a rounded corner, which can more evenly distribute stress.

[0027] The utility model discloses a locking device suitable for airborne electronic case, and the structure design is reasonable, and the locking effect is reliable, resets and pops out the response fast, is suitable for the locking demand of various airborne electronic case. Specifically speaking, locking device is installed to electronic case through shell 1, when electronic case is fixed to electronic equipment shock mount or mounting frame or cabinet etc., and the locking device on electronic case needs to cooperate with the positioner on electronic equipment shock mount or mounting frame or cabinet etc., in this embodiment, the first end of press bar 2 is provided with second lock hook 22 for locking, realizes locking function through second lock hook 22 and positioner cooperation, specifically speaking, second lock hook 22 needs to be buckled into positioner, then press bar 2 is pressed into mounting cavity 11, makes the upper plane of press bar 2 with the upper plane of shell 1 parallel, and the second end of press bar 2 is locked with plate key 3 through locking structure, plays the role of clamping and fixing case, completes the installation and locking of electronic case on electronic equipment shock mount or mounting frame or cabinet etc., when electronic case needs to be pulled out from electronic equipment shock mount or mounting frame or cabinet etc., presses plate key 3 inwards, makes the second end of press bar 2 with plate key 3 unlock, and press bar 2 automatically pops out under the action of elastic part, completes the unlocking of electronic case on electronic equipment shock mount or mounting frame or cabinet etc.

[0028] The above is only the preferred implementation of the utility model, so equivalent changes or modifications of the structure, features and principles, which are described in the patent application range of the utility model, are included in the patent application range of the utility model.

Claims

1. A locking device suitable for an airborne electronic chassis, comprising a housing (1), a pressure rod (2), and a key plate (3), wherein the housing (1) has a mounting cavity (11) for accommodating the pressure rod (2) and the key plate (3), the first end of the pressure rod (2) is rotatably connected to the housing (1), the key plate (3) is rotatably connected to the housing (1), a locking structure is provided between the key plate (3) and the second end of the pressure rod (2), the pressure rod (2) is locked to the key plate (3) through the locking structure, and the key plate (3) is provided with an elastic element, characterized in that: The elastic element includes a first retaining ring (4) and a second retaining ring (5). The plate key (3) is provided with a first irregular groove (33) and a second irregular groove (34). One end of the first retaining ring (4) extends into the first irregular groove (33), and the other end of the first retaining ring (4) extends out of the groove opening of the first irregular groove (33) and abuts against the pressure rod (2). One end of the second retaining ring (5) extends into the second irregular groove (34), and the other end of the second retaining ring (5) extends out of the groove of the second irregular groove (34). The opening is external and abuts against the inner wall of the outer shell (1). Both ends of the first snap ring (4) and the second snap ring (5) are provided with bent portions (6). The first irregular groove (33) and the second irregular groove (34) both include a transition groove (7) and a limiting groove (8) connected to the transition groove (7). The transition groove (7) and the limiting groove (8) are arranged in an "L" shape. The first snap ring (4) or the second snap ring (5) extends into the limiting groove (8) through the transition groove (7) and is limited and engaged with the limiting groove (8).

2. The locking device for an airborne electronic chassis according to claim 1, characterized in that: The transition groove (7) is arranged in a "V" shape.

3. A locking device suitable for airborne electronic chassis according to claim 1, characterized in that: The bottom of the limiting groove (8) is rounded.

4. A locking device suitable for airborne electronic chassis according to claim 1, characterized in that: The locking structure includes a first locking hook (21) disposed on the second end of the pressure rod (2) and a locking groove (31) disposed on the plate key (3), wherein the first locking hook (21) and the locking groove (31) cooperate to lock.

5. A locking device suitable for airborne electronic chassis according to claim 1, characterized in that: The plate key (3) has an inclined surface (35) above the locking groove (31), and the pressure rod (2) has an arc transition surface (24) that matches the inclined surface (35).

6. A locking device suitable for airborne electronic chassis according to claim 1, characterized in that: The first end of the pressure rod (2) is also provided with a second locking hook (22) for locking.

7. A locking device suitable for airborne electronic chassis according to claim 1, characterized in that: The pressure rod (2) is provided with several first through holes (23) for weight reduction.

8. A locking device suitable for airborne electronic chassis according to claim 1, characterized in that: The plate key (3) is provided with several second through holes (32) for weight reduction.

9. A locking device suitable for airborne electronic chassis according to claim 1, characterized in that: When the pressure rod (2) is locked to the plate key (3) by the locking structure, the upper plane of the pressure rod (2) is parallel to the upper plane of the outer shell (1).

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