CN202005103U

CN202005103U - Device for arranging and locking electric appliance on cap-type mounting rail

Info

Publication number: CN202005103U
Application number: CN2011200235117U
Authority: CN
Inventors: 严鹏斌; 卢科军
Original assignee: Noark Electrics Shanghai Co Ltd
Current assignee: Noark Electrics Shanghai Co Ltd
Priority date: 2011-01-25
Filing date: 2011-01-25
Publication date: 2011-10-05
Anticipated expiration: 2021-01-25

Abstract

The utility model relates to a device for arranging and locking an electric appliance on a cap-type mounting rail, which comprises a hanging hook fixedly formed at one end of a shell of the electric appliance, and a mounting structure formed at the other end of the shell of the electric appliance and comprising a stop piece, a first guide rail structure and a locking piece, wherein the stop piece is connected with the shell of the electric appliance through the first guide rail structure, and can slide between the locking position and the disengaging position with the mounting rail through the locking piece, so the electric appliance is clamped and fixed onto the mounting rail through the common contact of the mounting structure and the hanging hook with two symmetric bulged optical margins of the mounting rail positioned between the mounting structure and the hanging hook. The stop piece is provided with first guide rail grooves, and the stop piece is arranged on the shell of the electric appliance in a sliding mode through first guide rails fixedly arranged on the shell and capable of being inserted into the first guide rail grooves. The stop piece comprises a sliding piece and an elastic piece which can be assembled together by a second guide rail structure, the locking piece comprises a locking hole formed on the head part of the sliding piece and used for bearing a locking bulge, and the electric appliance is arranged and locked on the mounting rail by the stop piece through the elastic bias pressing of the elastic piece.

Description

A kind of device that locking electrical equipment is installed on the hat type mounting rail

Technical field

The utility model relates to a kind of device that can easily analog and digital electrical appliance be fixed on the guide rail, refers in particular to install and fix on TH type (hat type) the standardization mounting rail that is applicable in modularization or the device of mobile analog and digital electrical appliance.

Background technology

Analog and digital electrical appliance is by terminal appliance and electric between them; the modularization assembly that mechanical connection and guard shield etc. constitute; terminal appliance is the electrical equipment that is loaded on power circuit circuit end; be used for relevant circuit and power consumption equipment are carried out distribution; control; protection; adjusting and warning etc.; comprise switch; socket; ammeter; earth leakage protective device; miniature circuit breaker; contactor; relay; monitor etc.; all parts of modularization terminal appliance are installed in its plastic casing; and plastic casing is installed on a TH type by its electrical apparatus insulation shell or claims on the standardization mounting rail of hat type; because utilizable space is less; so analog and digital electrical appliance can not adopt common fixture to be installed on the standard mounting rail, must adopt take up space little; part adaptive fixture few and simple in structure is installed.The most basic specification requirement to the fixing device for installing of modularization terminal appliance product is: press customer requirements, should easily terminal appliance be installed on mounting rail and fixedly secure, realize terminal appliance moving or dismounting on mounting rail again easily.

The fixing device for installing of the analog and digital electrical appliance product of Xiao Shouing in the market, because the width dimensions that electric equipment products are moulded the dimensional requirement of the opening that is fixedly connected with mounting rail on the insulation crust of shell and mounting rail about equally and immutable, so be difficult to terminal appliance is is laterally loaded and unloaded along mounting rail.After the electrical equipment group of being made up of a plurality of terminal appliances inserts bus-bar, if will change one of them or minority electrical equipment, fixedly the screw of bus-bar is all opened, can take out the electrical equipment that needs replacing after unloading bus-bar, obviously, such fixing device for installing makes the operation of changing electrical equipment, and quite effort is time-consuming, makes the user extremely be inconvenient to realize combination and management.The convenient combination and the problem of management of track installation are subjected to manufacturer and user's attention in recent years more and more.

200620132366.5 number Chinese invention patent discloses a kind of fixing device for installing of analog and digital electrical appliance, this fixture mainly is by translation that is installed in the retainer on the electrical apparatus insulation shell and locking, make change or locking that the opening size of electrical equipment and mounting rail can be artificial, realize the convenient loading and unloading of electrical equipment and on mounting rail, move easily or rearrange, improved interchangeability and compatibility between mounting rail and the electrical equipment.But, limits mutually this fixing device for installing because being a locking projections by lock hole groove in electric appliance casing bottom and retainer, electrical equipment is fixed on the mounting rail by retainer, make the retainer can be by the relation of lifting restrictions again along the mounting rail translation, the groove structure of this electric appliance casing bottom reduces the inner space of product to some extent, has influenced the reasonability and the properties of product of former internal structure to a certain extent.And this retainer complex structure, set up a part and carry out spacing its elastic component.

The utility model content

The purpose of this utility model is to overcome the defective of above-mentioned prior art, a kind of fixing device for installing of the analog and digital electrical appliance of being convenient to load and unload is provided, do not influencing under the product interior spatial structure situation, can satisfy the convenient combination and the managerial various demand of the installation of user's track, and this apparatus structure is simple more and be easy to manufacturing, has reduced production cost.

To achieve these goals, the utility model has adopted following technical scheme.

A kind of device that locking electrical equipment is installed on the hat type mounting rail, comprise the mounting structure that comprises a retainer, first guide rail structure and locking piece that fixedly is formed on the hook on casing for electric appliances one end and on the other end, forms, this retainer is connected with casing for electric appliances by first guide rail structure, and by locking piece can and the protruding plain edge locking of mounting rail and the position of throwing off between slide, make mounting structure and hook by contacting, casing for electric appliances is fixed clampingly on the mounting rail with the common of two symmetrical protruding plain edges of therebetween described mounting rail.Retainer is provided with a pair of first guide-track groove, and first guide rail structure comprises a pair of first guide rail that inserts first guide-track groove that is fixedly installed on the housing, and retainer is slidingly mounted on the casing for electric appliances.Retainer comprises a sliding part and an elastic component that can be assembled together by second guide rail structure, locking piece comprises the lock hole that is formed on the sliding part head, be used to accept the locking projections that is arranged on the first guide rail arrival end, retainer is locked on the casing for electric appliances, and the fexible bias pressure by flexible block on the elastic component and elastic construction, casing for electric appliances installed by retainer be locked on the mounting rail.

According to a scheme of the present utility model, the head of described sliding part 2 is provided with a resilient tongue plate 22, it comprises a stiff end and an elastic reaction end, described lock hole 21 is arranged in the elastic reaction end of resilient tongue plate 22, by pushing the flange 23 that is arranged on elastic reaction end end, need not movable electrical appliances and can realize the release of electrical equipment on mounting rail.

According to another scheme of the present utility model, a pair of first guide rail 12 of described first guide rail structure, 13, extend along the length direction of the installed surface 11 of housing 1 in parallel to each other and be provided with, a pair of first guide-track groove 24 of described first guide rail structure, 25 are symmetricly set on the two side of sliding part 2 installation ends of retainer 3, by described

first guide rail

12,13 with the first corresponding guide-

track groove

24,25 cooperation, described casing for electric appliances 1 is connected with the sliding part 2 of retainer 3, the retainer 3 that is installed on the electrical equipment can be moved along the vertically level and smooth of

first guide rail

12,13 between two positions of the locking and unlocking by first guide rail structure.

Described second guide rail structure comprises a pair of second guide rail 263,264, they are arranged on the both sides of elastic component 222 installation ends along the direction that the head to elastic component 222 extends in parallel to each other, described second guide rail structure also comprises a pair of second guide-track groove 29,210, they are symmetricly set on the inner surface of two side of sliding part 2 installation ends of retainer 3, and be parallel to first guide-track groove 24 respectively, 25 extend, this is to second guide-track groove 29,210 opening is positioned on the installation end of sliding part 2, by described second guide rail 263,264 and the second corresponding guide-track groove 29,210 cooperation is assembled to elastic component 222 on the sliding part 2.A pair of convex shoulder 281,282 is symmetricly set on the inner surface of sliding part 2 two sides, and make the end of the end of described each second guide-track groove 29,210 for sealing, take place excessively to skid off when preventing to be installed to elastic component 222 on second guide-track groove 29,210 of sliding part 2.

According to another scheme of the present utility model, described flexible block 26 is arranged on the installation end of described elastic component 222, be used to clamp mounting rail, it constitutes a mousing-hook 261 between the projection by being arranged side by side a pair of projection on this installation end and being formed on this, and, described flexible block 26 can only be along a pair of second guide-track groove 29 on the sliding part 2,210 longitudinal sliding motions, leading edge in each projection towards the L shaped installation surface of protruding plain edge of mounting rail, have the L shaped contact surface with the L shaped installation surface shape form fitting of mounting rail, contact so that this L type contact-making surface can be fitted fully with the L shaped installation surface of mounting rail.Comprise a facade 141 and an inclined-plane 142 that is provided with back-to-back with described facade 141 on the locking projections 14 on the installed surface 11 of described casing for electric appliances 1, described facade 141 is used to block lock hole 21 on the sliding part 2 of retainer 3 and the mousing-hook 261 on the elastic component 222, described inclined-plane 142 is used to make the inclined-plane of the mousing-hook 261 on the elastic component 222 of retainer 3 can waltz through locking projections 14, thereby prevents that retainer 3 from deviating from from casing for electric appliances 1.

Both sides at described flexible block 26, be symmetrically arranged with two strip crotch spares 266,267 that extend to the cephalad direction of elastic component 222, the head of its elongated end has crotch, two pits 280 are symmetrically formed on the inner surface in the middle part of the two side of sliding part 2, snap in two pits 280 by a pair of crotch, limit described flexible block 26 and skid off described elastic component 222.

Described elastic construction 268 is formed on by crotch spare 266, in the inner space of 267 elastic components 222 that surround jointly with flexible block 26, and be connected with flexible block 26, described elastic construction 268 has one and drains into few two inverted U cross sections, its protruding end is towards the mounting rail setting, on the protruding end face in each inverted U cross section, be provided with groove 262, be used to prevent be subjected to stopping of locking projections 14 when retainer 3 from sliding on casing for electric appliances 1.A flange 265 is located on the end of described elastic construction 268, between two crotches of a pair of crotch spare 266,267, projection 27 is arranged on the stiff end of resilient tongue plate 22 of described sliding part 2, cooperate with the clamping of described flange 265 by the projection 27 on the described sliding part 2, can limit elastic construction 268 and upspring from sliding part 2.

It is of the present utility model that the apparatus structure of installation locking electrical equipment is simple on the hat type mounting rail, installation is reliable, it is easy to dismantle, not only realized electrical equipment moving, rearranging or loading and unloading as required on mounting rail easily, and made full use of the inner space that original analog and digital electrical appliance is moulded the shell insulation crust, realized good mounting rail and interchangeability between the electrical equipment and compatibility, satisfied convenient combination and the managerial various needs of user the installation of analog and digital electrical appliance track.

Description of drawings

Fig. 1 is the stereogram that the insulation shell of the device that locks electrical equipment is installed on the hat type mounting rail of the present utility model, and the housing 1 among the figure is for installing supine inversion state.

Fig. 2 is the stereogram of the retainer of the device that locking electrical equipment is installed on the hat type mounting rail of the present utility model, the integrality that retainer 3 has been assembled together with sliding part 2 for elastic component 222 among the figure.

Fig. 3 is a stereogram before the assembling of the elastic component that has on the retainer shown in Figure 2, and elastic component 222 is in the discrete state that is not installed to as yet on the sliding part 2 among the figure.

Fig. 4, Fig. 5 are respectively the stereograms of two angles of the sliding part of retainer shown in Figure 2, the still unassembled elastic component 222 of going up among the figure.

Embodiment

Below in conjunction with the execution mode under different angles shown in the accompanying drawing 1 to 5 or the different assembling situation, further describe the device that locking electrical equipment is installed of the present utility model on the hat type mounting rail, make its characteristics and advantage easy to understand more.The device of being convenient to load and unload that installs and fixes analog and digital electrical appliance of the present utility model is not limited to the description of following examples.

The device that locking electrical equipment is installed on the hat type mounting rail of the present utility model is by the housing 1 of analog and digital electrical appliance and comprise sliding part 2 and elastic component 222 synthetic retainers 3 constitute jointly.The mounting rail of analog and digital electrical appliance is the standard mounting rail or claims hat type standardization mounting rail, the shape of this mounting rail is similar to the cap that a cap mouth rushes to, top cap bilateral symmetry is provided with the protruding plain edge that is used to clamp described electrical equipment, mounting rail is fixed on the metope by the installing hole at its recessed cap center, top, and the shell of electrical equipment snaps fitted on the protruding plain edge of the mounting rail that top cap bilateral symmetry stretches out.Fig. 1 is an example with the stereogram of the insulation shell 1 of a modularization terminal appliance, and all functions parts of electrical equipment are installed in the housing 1 of electrical equipment.Fig. 2 is the stereogram of retainer 3, and retainer 3 shown in Figure 2 is made of jointly sliding part 2 and the elastic component 222 that can be assemblied on the sliding part 2.For the retainer that is assembled into integrality 3 shown in Figure 2, Fig. 3 then represents not to be installed to as yet the discrete state stereogram of the elastic component 222 on the sliding part 2, and Fig. 4, Fig. 5 are respectively the still unassembled upward stereograms of two angles of the sliding part 2 of elastic component 222.For clearly demonstrating in conjunction with the accompanying drawings on the installed surface 11 that retainer shown in Figure 23 slidably is installed in electrical apparatus insulation housing 1, electrical apparatus insulation housing 1 among Fig. 1 is installed surface 11 (following is the example explanation with bottom surface a 11) inversion state up, among Fig. 1 retainer 3 as yet not with insulation shell 1 connection, insulation shell 1 is not installed on the mounting rail by retainer 3 as yet yet.From Fig. 1 and 2 as can be seen, device of the present utility model comprises hook 4 on installed surface 11 1 ends that fixedly are formed on casing for electric appliances 1 and the mounting structure that forms on the other end of this installed surface 11, this mounting structure comprises retainer shown in Figure 23 and in conjunction with first guide rail structure and the locking piece shown in Fig. 1 and 2, this retainer 3 is connected with the installed surface 11 of casing for electric appliances 1 by first guide rail structure, and by locking piece can and the protruding plain edge locking of described mounting rail and the position of throwing off between slide, make described mounting structure and described hook 4 by contacting, casing for electric appliances 1 is fixed clampingly on the mounting rail with the common of two symmetrical protruding plain edges of therebetween described mounting rail.

On an end of the bottom surface 11 of the electrical apparatus insulation housing 1 of Fig. 1, have and insulation shell 1 integrated hook 4, the openend of the interior concaving hook groove of described hook 4 is towards the mounting rail direction, be used for contacting, this end of described insulation shell 1 is installed on the side of hat type mounting rail with a protruding plain edge of mounting rail.As shown in Figure 1, the other end of the bottom surface 11 of insulation shell 1 is provided with on a pair of surface that protrudes from bottom surface 11 and

first guide rail

12 and 13 that is arranged in parallel, 11 length direction extends and is provided with these two

guide rails

12 and 13 along the bottom surface, it vertically and the parallel axes of the bottom surface 11 of insulation shell 1 is used to accept retainer 3.Retainer 3 shown in Figure 2 is assembled together by sliding part 2 and elastic component 222 and constitutes, sliding part 2 and elastic component 222 are by constituting towards the installation end of mounting rail and the head that oppositely extends, a pair of first guide-

track groove

24 and 25 is symmetricly set on the inner surface of two side of sliding part 2 installation ends of retainer 3 of Fig. 2 in parallel to each other, by described

first guide rail

12,13 and first guide-

track groove

24,25 cooperation can make retainer 3 energy along the longitudinal sliding motion of being somebody's turn to do first guide rail 12,13.It is variable that being slidingly matched like this makes by formed distance between the L type contact-making surface on hook on the casing for electric appliances 14 and the retainer 3, constitute thus be installed to housing 1 on the mounting rail or dismounting adjust out distance.Referring to Fig. 1, locking projections 14 is arranged on this end of bottom surface 11 of housing 1, near the first guide rail arrival end and between two first guide rails, this locking projections 14 is finished the locking action of retainer 3 on casing for electric appliances 1 jointly with the lock hole 21 (referring to Fig. 2) on the sliding part 2 that is formed on retainer 3.

Referring to the elastic component 222 of retainer shown in Figure 33, its effect is the reliable installation of realization and mounting rail.This elastic component 222 is made of installation end and the head towards mounting rail, its installation end is provided with a flexible block 26 that is used to clamp mounting rail, it constitutes a mousing-hook 261 between the projection by being arranged side by side a pair of projection on the installation end of elastic component 222 and being formed on this, leading edge in each projection towards the L shaped installation surface of mounting rail, have the contact surface with the L shaped installation surface shape form fitting of mounting rail, contact so that this L type contact-making surface is fitted fully with the installation surface of mounting rail 11.Bilateral symmetry at flexible block 26 is provided with two rectangular crotch spares 266,267 that extend to the head of elastic component 222, the head of its elongated end has crotch, pit 280 by being symmetrically formed on middle part, the two side inner surface that snaps in sliding part 2 is used to limit flexible block 26 and skids off.The part of two projectioies of contiguous flexible block 26 on the outer surface of two crotch spares 266,267 of elastic component 222, be symmetrically arranged with two second guide rails 263,264, by with sliding part 2 on two second guide-track grooves 29 be arrangeding in parallel, 210 mating reaction is assembled to formation retainer 3 on the sliding part 2 with elastic component 222.In the inner space of the elastic component 222 that surrounds jointly by crotch spare 266,267 and flexible block 26, be formed with the elastic construction 268 that a row who is connected with flexible block 26 has two inverted U cross sections, its protruding end is towards the mounting rail setting.Strain by elastic construction 268, make fixing device for installing can adapt to the TH type mounting rail of large-size error, its effect is to provide enough elastic force for flexible block 26 clamps mounting rail, makes electric equipment products and mounting rail jam-packed, with anti-loosening, make product the back is installed firmly.

Referring to the sliding part 2 of Fig. 4 and retainer 3 shown in Figure 5, it both had been used for the installation and the locking of retainer 3 and insulation shell 1, also played the supporting role to elastic component 222.The head of sliding part 2 is inverted U-shaped, and afterbody is the installation end towards mounting rail.Also be provided with second guide-track groove 29,210 that pair of parallel is extended in described first guide-

track groove

24,25 on the installation end of sliding part 2, be respectively applied for second guide rail 263,264 of accepting flexible block 26 both sides on the elastic component 222, make the flexible block 26 can only be along second guide-track groove, 29,210 longitudinal sliding motions on the sliding part 2.The end of second guide-track groove 29,210 of accepting second guide rail 263,264 of elastic component 222 on sliding part 2 is respectively equipped with convex shoulder 281,282, make this endcapped to guide-track groove, so that elastic component 222 is installed to second guide-track groove 29 of sliding part 2, in the time of on 210, limit its sliding distance, prevent that elastic component 222 from excessively skidding off.Referring to Fig. 3, on the protruding end face in each inverted U cross section on the elastic construction 268, be provided with groove 262, groove 262 is used to prevent that retainer 3 is stopped by the locking projections 14 on the insulation shell 1 when sliding on casing for electric appliances 1.The end of two crotches of contiguous crotch spare 266,267 is provided with flange 265 on the elastic construction 268, and between two crotches of a pair of crotch spare 266,267, the stiff end of the resilient tongue plate 22 on the sliding part 2 is provided with projection 27 (referring to Fig. 4 or Fig. 5), snap in when the flange 265 of elastic construction 268 described ends under the state of the projection 27 on the sliding part 2 of retainer 3, restriction elastic construction 268 upsprings from sliding part 2.

Further describe the operation principle of the dependency structure of loading and unloading analog and digital electrical appliance secure mounting arrangements of the present utility model below in conjunction with Fig. 1-5.Elastic component 222 shown in Figure 3 is by second guide rail 263 of its both sides, 264 slidably are installed to second guide-track groove 29 on Fig. 4 or the sliding part 2 shown in Figure 5, in 210, make elastic component 222 and sliding part 2 be assembled together mutually (referring to Fig. 2), so, retainer 3 by be arranged on the lock hole 21 on the sliding part 2 and be arranged on the sliding part 2 with second guide-track groove 29,210 first guide-track grooves 24 that be arranged in parallel, 25 with the mounting structure end of bottom surface 11 that is formed on casing for electric appliances 1 on

first guide rail

12,13 and the effect of cooperatively interacting of locking projections 14, retainer 3 slided and locking is installed on the mounting structure end of bottom surface 11 of casing for electric appliances 1, at this moment, the installation end of this retainer 3 by its elastic component 222 is towards the L shaped contact-making surface that the flexible block 26 on the trackside leading edge is installed and be arranged on elastic construction 268 on the elastic component 222, with hook 4 actings in conjunction on bottom surface 11 other ends that are formed on casing for electric appliances 1, casing for electric appliances 1 is fixedly clamped on described standardization mounting rail, and, described casing for electric appliances 1 is locked on the described mounting rail by of the locking of described retainer 3 with electrical apparatus insulation housing 1.

Shown in Fig. 4 or 5, end at the sliding part 2 of retainer 3 is provided with a resilient tongue plate 22, it comprises a stiff end and an elastic reaction end, described lock hole 21 is arranged on the elastic reaction end of resilient tongue plate 22, and, be provided with a flange 23 in the end of elastic reaction end, push release for operating personnel and use.Referring to Fig. 1 and Fig. 2, guide rail 12 on the bottom surface 11 of insulation shell 1,13 porch also is provided with a locking projections 14, be used to accept the lock hole 21 on the retainer 3, comprise a facade 141 and an inclined-plane 142 (referring to Fig. 1) that is provided with back-to-back with described facade 141 on the locking projections 14, when being slidably mounted to retainer 3 on the electrical apparatus insulation housing 1, when locking projections 14 and lock hole 21 are in equitant position, because the elastic force effect of resilient tongue plate 22, lock hole 21 is fallen in the locking projections 14 of insulation shell 1, because the facade 141 on the locking projections 14 stops contact in lock hole 21, lock hole 21 is locked in the locking projections 14, thereby has realized the locking of retainer 3.The described facade 141 of locking projections 14 is used to block lock hole 21 on the sliding part 2 of retainer 3 and the mousing-hook 261 on the elastic component 222, and the effect on inclined-plane 142 is to be convenient to make the inclined-plane of the mousing-hook 261 on the elastic component 222 of retainer 3 can waltz through locking projections 14.The time can utilize the casing for electric appliances volume inside more in assembling like this, retainer 3 is realized spacingly also needn't increasing part by 2 pairs of elastic components of sliding part 222.

Exert pressure when making its distortion and arriving certain position when the head of the sliding part 2 that puts in retainer 3 with screwdriver class instrument and to the flange 23 of resilient tongue plate 22, the stopping to contact of the facade 141 of the locking projections 14 on the lock hole 21 on the resilient tongue plate 22 and the electrical apparatus insulation housing 1 is disengaged, and need not movable electrical appliances and can realize the release of electrical equipment on mounting rail.Then retainer 3 is pulled out from former latched position, thereby realized the release of retainer 3.By manually pushing the locking of removing this retainer 3 and casing for electric appliances 1, retainer 3 can translation on casing for electric appliances 1, but the distance between the above the L shaped contact-making surface of the leading edge of the flexible block 26 of the elastic component 222 of hook 4 on for a change described insulation shell 1 of people and retainer 3 thus is easy to from the direct horizontal loading and unloading electrical equipment or be implemented in rearranging of electrical equipment on the mounting rail of mounting rail.Retainer 3 is on casing for electric appliances 1 in the translation, and the opening size locking that electrical equipment and mounting rail can be installed and fixed again makes electrical equipment firmly, stably be installed on the mounting rail.Because the distance between described L type contact-making surface and the mounting rail adopts the changeable mode of fixedlying connected, so improved fixedly connected interchangeability that cooperates and compatibility between electrical equipment and its mounting rail.

When retainer 3 is in released state, lock hole 21 is in the outside of insulation shell 1, perhaps, locking projections 14 at the resilient tongue plate 22 of sliding part 2 heads of retainer 3 and casing for electric appliances 1 is in the extruding contact condition, this moment retainer 3 can be freely along the vertically moving of

first guide rail

12,13 on the housing 1, operating personnel can move, lift, move or dismantle the operation of analog and digital electrical appliance easily on mounting rail.

The following describes the operation principle that device of the present utility model prevents retainer 3 unexpected structure of deviating from from the electric appliance casing 1.As previously mentioned, between two projectioies of the flexible block 26 of the elastic component on the retainer 3 222, have a mousing-hook 261, its effect is to prevent that retainer 3 from taking off from casing for electric appliances 1, its anti-drop function is achieved in that after in first guide-

track groove

24,25 that

first guide rail

12,13 on the casing for electric appliances 1 is inserted retainers 3, inclined-plane 142 extruding of the locking projections 14 on the mousing-hook 261 on the elastic component 222 and casing for electric appliances 1 installed surface contacts, mousing-hook 261 generation strains.When locking projections 14 overlaids on mousing-hook 261 and the casing for electric appliances 1, because the elastic force effect of mousing-hook 261 makes mousing-hook 261 fall into locking projections 14 inboards.At this moment, if retainer 3 is continued to slide inwards, then mousing-hook 261 has been positioned at locking projections 14, do not influence retainer 3 continue vertically move.If but this moment retainer 3 is outwards pulled out, then owing to the hooked projection of mousing-hook 261 is blocked by the facade 141 of the locking projections on the casing for electric appliances 1 14, thus retainer 3 can not be pulled out from casing for electric appliances 1, thus the accident that has prevented retainer 3 is deviate from.

Claims

1. one kind the device that locks electrical equipment is installed on the hat type mounting rail, the top cap bilateral symmetry of this mounting rail is provided with the protruding plain edge that is used to clamp described electrical equipment, this device comprises hook (4) on installed surface (11) one ends that fixedly are formed on casing for electric appliances (1) and the mounting structure that forms on the other end of this installed surface (11), described mounting structure comprises a retainer (3), first guide rail structure and locking piece, this retainer (3) is connected with the installed surface (11) of casing for electric appliances (1) by first guide rail structure, and by locking piece can and the protruding plain edge locking of described mounting rail and the position of throwing off between slide, make described mounting structure and described hook (4) by contacting with the common of two symmetrical protruding plain edges of therebetween described mounting rail, casing for electric appliances (1) is fixed clampingly on the mounting rail, it is characterized in that:

The described retainer (3) of described mounting structure is provided with a pair of first guide-track groove (24,25), first guide rail structure comprises described first guide-track groove (24 that inserts on a pair of installed surface (11) that is fixedly installed on housing (1), 25) first guide rail (12,13), described retainer (3) is slidingly mounted on the casing for electric appliances (1);

Described retainer (3) comprises a sliding part (2) and an elastic component (222), they are assembled together by one second guide rail structure, described locking piece comprises the lock hole (21) that is formed on sliding part (2) head, be used to accept first guide rail (12 that is arranged on the described installed surface (11), 13) locking projections on the arrival end (14), described retainer (3) is locked on the casing for electric appliances (1), and, casing for electric appliances (1) is locked on the mounting rail by retainer (3) installation by the flexible block (26) on the elastic component (222) and the fexible bias pressure of elastic construction (268).

2. the device that locking electrical equipment is installed on the hat type mounting rail according to claim 1, it is characterized in that: the head of described sliding part (2) is provided with a resilient tongue plate (22), it comprises a stiff end and an elastic reaction end, described lock hole (21) is arranged in the elastic reaction end of resilient tongue plate (22), by pushing the flange (23) that is arranged on elastic reaction end end, can realize the release of electrical equipment on mounting rail.

3. device according to claim 1, it is characterized in that: a pair of first guide rail (12 of described first guide rail structure, 13), extend along the length direction of the installed surface (11) of housing (1) in parallel to each other and be provided with, a pair of first guide-track groove (24 of described first guide rail structure, 25) be symmetricly set on the two side of sliding part (2) installation end of stopping element (3), by described first guide rail (12,13) with the first corresponding guide-track groove (24,25) cooperation, described casing for electric appliances (1) is connected with the sliding part (2) of stopping element (3), the stopping element (3) that is installed on the electrical equipment can be moved along the vertically level and smooth of first guide rail (12,13) between two positions of the locking and unlocking by first guide rail structure.

4. device according to claim 1, it is characterized in that: described second guide rail structure comprises a pair of second guide rail (263,264), they are arranged on the both sides of elastic component (222) installation end along the direction that the head to elastic component (222) extends in parallel to each other, described second guide rail structure also comprises a pair of second guide-track groove (29,210), they are symmetricly set on the inner surface of two side of sliding part (2) installation end of stopping element (3), and be parallel to first guide-track groove (24 respectively, 25) extend, this is to second guide-track groove (29,210) opening is positioned on the installation end of sliding part (2), by described second guide rail (263,264) with the cooperation of corresponding second guide-track groove (29,210), elastic component (222) is assembled on the sliding part (2).

5. device according to claim 4, it is characterized in that: a pair of convex shoulder (281,282) is symmetricly set on the inner surface of sliding part (2) two side, and make the end of the end of described each second guide-track groove (29,210) for sealing, take place excessively to skid off when second guide-track groove (29,210) that elastic component (222) is installed to sliding part (2) gone up preventing.

6. device according to claim 1, it is characterized in that: described flexible block (26) is arranged on the installation end of described elastic component (222), be used to clamp mounting rail, it constitutes the mousing-hook (261) between the projection by being arranged side by side a pair of projection on this installation end and being formed on this, and, described flexible block (26) can only be along a pair of second guide-track groove (29 on the sliding part (2), 210) longitudinal sliding motion, leading edge in each projection towards the L shaped installation surface of protruding plain edge of mounting rail, have the L shaped contact surface with the L shaped installation surface shape form fitting of mounting rail, contact so that this L type contact-making surface can be fitted fully with the L shaped installation surface of mounting rail.

7. device according to claim 6, it is characterized in that: comprise a facade (141) and an inclined-plane (142) that is provided with back-to-back with described facade (141) on the locking projections (14) on the installed surface (11) of described casing for electric appliances (1), described facade (141) is used to block lock hole (21) on the sliding part (2) of retainer (3) and the mousing-hook (261) on the elastic component (222), described inclined-plane (142) is used to make the inclined-plane of the mousing-hook (261) on the elastic component (222) of retainer (3) can waltz through locking projections (14), thereby prevents that retainer (3) from deviating from from casing for electric appliances (1).

8. device according to claim 1, it is characterized in that: both sides in described flexible block (26), be symmetrically arranged with two strip crotch spares (266,267) that extend to the cephalad direction of elastic component (222), the head of its elongated end has crotch, two pits (280) are symmetrically formed on the inner surface at the middle part, two side of sliding part (2), snap in two pits (280) by a pair of crotch, limit described flexible block (26) and skid off described elastic component (222).

9. device according to claim 8, it is characterized in that: described elastic construction (268) is formed on by crotch spare (266,267) in the inner space of the elastic component (222) that surrounds jointly with flexible block (26), and be connected with flexible block (26), described elastic construction (268) has one and drains into few two inverted U cross sections, its protruding end is towards the mounting rail setting, on the protruding end face in each inverted U cross section, be provided with groove (262), be used to prevent that retainer (3) is subjected to stopping of locking projections (14) when casing for electric appliances (1) is gone up slip.

10. device according to claim 9, it is characterized in that: a flange (265) is located on the end of described elastic construction (268), be positioned between two crotches of a pair of crotch spare (266,267), a projection (27) is arranged on the stiff end of resilient tongue plate (22) of described sliding part (2), cooperate with the clamping of described flange (265) by the projection (27) on the described sliding part (2), can limit elastic construction (268) and upspring from sliding part (2).