CN212412708U

CN212412708U - Jack box for assembling to bus duct

Info

Publication number: CN212412708U
Application number: CN202021203125.1U
Authority: CN
Inventors: 王照伟; 宋显凤; 黄剑良; 程世奇; S.什雷斯塔; 容健彬
Original assignee: Schneider Electric Industries SAS
Current assignee: Schneider Electric Industries SAS
Priority date: 2020-06-24
Filing date: 2020-06-24
Publication date: 2021-01-26
Anticipated expiration: 2030-06-24

Abstract

The utility model relates to a jack box for assembling bus duct, this jack box include locking device, and this locking device includes: the latch comprises a latch hook, a connecting end and a locking end, wherein the latch hook is arranged on the side wall of the jack box and can pivot around a pivot shaft of the latch hook between a locking position for locking the jack box and the bus duct together and an unlocking position for unlocking the jack box and the bus duct; the sliding block is connected with the connecting end of the hook and can slide between the locking position and the unlocking position; and a handle pivotable about its pivot, the handle being connected to the slider by a link, wherein when the handle is pivoted about its pivot between said locked position and said unlocked position, the handle is able to link the slider by the link, the slider linking the hook pivoting about its pivot between said locked position and said unlocked position so as to enable locking and unlocking of the junction box and the bus duct.

Description

Jack box for assembling to bus duct

Technical Field

The utility model relates to a jack box especially relates to a jack box for assembling to bus duct.

Background

A jack box for bus duct belongs to the bus duct accessory, mainly extends and expands bus duct branch circuit, and the jack box is connected with the bus duct through participating in. The traditional installation method for connecting the jack box to the bus duct is complicated, usually needs an additional tool, or needs manual position adjustment, or needs cooperation of multiple persons, and therefore is inconvenient.

Therefore, a jack box is needed, which can be installed at any position of the bus duct, and is simple to operate and convenient to install.

SUMMERY OF THE UTILITY MODEL

The present invention has been made in view of the above problems of the prior art, and an object of the present invention is to provide a jack box having a locking device. The utility model discloses mainly be the linkage of the locking device's of jack box couple, slider and handle has realized installing the jack box on the bus duct, improves assembly efficiency, and work safe and reliable lets use the product that has this technique more competitive.

In addition, the jack box of the utility model can be installed on the bus duct at any position, no extra installation tool is needed, single-person installation can be realized, and the jack box is simple, convenient and efficient; in addition, due to the adoption of the automatic reset hook, the device is convenient to assemble and disassemble, is linked with the self-locking handle, and is safe and reliable.

The utility model aims at realizing through a jack box that is used for assembling to bus duct, this jack box includes locking device, and this locking device includes: the latch comprises a latch hook, a connecting end and a locking end, wherein the latch hook is arranged on the side wall of the jack box and can pivot around a pivot shaft of the latch hook between a locking position for locking the jack box and the bus duct together and an unlocking position for unlocking the jack box and the bus duct; the sliding block is connected with the connecting end of the hook and can slide between the locking position and the unlocking position; and a handle pivotable about its pivot, the handle being connected to the slider by a link, wherein when the handle is pivoted about its pivot between said locked position and said unlocked position, the handle is able to link the slider by the link, the slider linking the hook pivoting about its pivot between said locked position and said unlocked position so as to enable locking and unlocking of the junction box and the bus duct.

In a preferred embodiment of the invention, the hook has a first arm and a second arm separated at an angle, the hook being provided with a hole at the connection of the first arm and the second arm for the pivot of the hook to pass through.

The utility model discloses an in the preferred embodiment, the couple includes first couple and the second couple that sets up relatively each other, and every in first couple and the second couple all includes locking end and link, and the locking end of this first couple and the locking end of second couple can buckle respectively in corresponding first draw-in groove and the second draw-in groove on the bus duct both sides, and the link of this first couple and second couple is connected to respectively on the opposite both sides of slider.

In a preferred embodiment of the invention, the locking end is the free end of the first arm and the connecting end is the free end of the second arm.

The utility model discloses an in the preferred embodiment, first couple and second couple respectively with rather than the corresponding torsional spring cooperation of being connected to make first couple and second couple can remain throughout in the tightening state and can automatic re-setting to its latched position.

In the preferred embodiment of the utility model, the locking ends of the first hook and the second hook are provided with top slopes, when the jack box contacts the bus duct, the bottom surface and the side surface of the bus duct contact the top slopes, and the first hook and the second hook are pushed away; when the locking end of the first hook and the second hook respectively upwards slides along the side face of the bus duct and exceeds the first clamping groove and the second clamping groove on the side face of the bus duct, under the action of the torsion spring, the locking end of the first hook and the locking end of the second hook respectively automatically rebound and are buckled in the first clamping groove and the second clamping groove of the bus duct, and the jack box automatically clasps the bus duct.

The utility model discloses an among the preferred embodiment, the locking end of second couple still is provided with anti-dress and prevents slow-witted draw-in groove (241), and when jack box was adorned conversely, set up protruding portion (13) on the bus duct and can buckle this anti-dress and prevent slow-witted draw-in groove to realize preventing slow-witted function.

In the preferred embodiment of the present invention, the slider is disposed in the slide so as to be able to slide up and down in the slide, the slide is formed by protruding the baffle, and the baffle is fixed on the sidewall of the connection box.

In a preferred embodiment of the invention, the slider is connected to the handle by a link to drive the slider to slide when the handle is pivoted.

In a preferred embodiment of the invention, an elongated runner is provided in the handle, which runner is located below the pivot of the handle when the handle is in the locked position.

In a preferred embodiment of the invention, the first end of the link is connected to the slider, the second end of the link is located in the chute, the second end of the link is located at an end of the chute near the pivot of the handle when the handle is in the locked position, and the second end of the link is located at the other end of the chute away from the pivot of the handle when the handle is in the unlocked position.

In a preferred embodiment of the invention, the handle can be locked in position when it is pulled down beyond the dead position about its pivot, and the hook can be opened when it is pulled up about its pivot.

The utility model discloses a in the preferred embodiment, be provided with the pressure spring in the handle, this pressure spring cover is established at the round pin epaxial of being connected with the connecting rod, and the pressure spring upper end pushes up on the round pin axle, and the other end pushes up on the round pin epaxially, guarantees jointly that the handle remains throughout in the dead point position and can not open after being in the lock position.

The utility model discloses an among the preferred embodiment, the baffle setting is on the lateral wall of jack box and is located the top of slider and some couples to protection slider and couple, the outside arch in baffle middle part form the slide, and the guarantee slider slides according to prescribed position, and wherein the part that the baffle corresponds with the slider is provided with the opening, slides from top to bottom with not influencing the slider.

In the preferred embodiment of the present invention, a guiding protection plate is disposed on the top wall of the jack box, so that the latch claw of the jack box can be correctly inserted into the copper bar conductor corresponding to the bus duct.

In a preferred embodiment of the invention, the locking means are provided on a side wall of the plug box, one locking means on each opposite side wall.

Drawings

Other objects, features and industrial and technical significance of the present invention will become more readily apparent from the following detailed description of specific embodiments of the invention when taken in conjunction with the accompanying drawings, wherein:

fig. 1 is a schematic view of an embodiment of a jack box for fitting to a bus duct according to the present invention, wherein locking devices are provided on side walls of both sides of the jack box;

FIG. 2 is a view of the locking device of FIG. 1 including a self-return shackle, slider and self-locking handle, the upper three of which are front, side and rear views, respectively, in their locked position, and the lower view of which is an exploded view;

FIG. 3 is a schematic view of the slide and self-locking handle in a locked position with a front view from the left and a side view from the right;

FIG. 4 is a schematic view of a guide protection plate disposed on top of the jack box;

fig. 5 is a view of a process of hanging up a jack box, wherein the upper view shows a locking device in a closed state or a locked position when the jack box is not yet mounted on the bus duct, and the lower view shows a view of the hanging up process when the jack box is hung up on the bus duct;

FIG. 6 is a view of a tripping and unmating process of a jack box, wherein the top view shows the locking device in a dead or locked position when the jack box has been installed on a bus duct and the bottom view shows the tripping and unmating process of the jack box from the bus duct; and

fig. 7 is a view of the back-up protection when the jack box is back-up on the bus duct.

Detailed Description

Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

Fig. 1 is a jack box 2 for assembly to a bus duct 1 (not shown) according to the present invention, comprising a locking device 21 arranged on a side wall of the jack box, preferably one on each side wall, the locking device mainly comprising a hook 22, a slider 28 and a handle 31, the hook, slider and handle being capable of cooperating with each other to enable snapping the jack box onto the bus duct. The top of the jack box is provided with a jack claw 26 which is used for being inserted into a copper bar conductor corresponding to the bus duct so as to realize the electric connection of the jack box and the bus duct.

Preferably, guide protection plates 25 are disposed on the top of the jack box along two side edges in the length direction of the jack box, as shown more clearly in fig. 4, for ensuring that a distance between the jack box and the bus duct is vertical, so that the claws of the jack box can be correctly inserted into the corresponding copper bar conductors of the bus duct, and simultaneously, the claws are protected from being damaged and deformed due to accidental contact of foreign objects. Two guide protection plates are schematically provided on each side as in fig. 1, but a person skilled in the art may provide any number of guide protection plates according to practical needs, and further, as shown in fig. 1, the guide protection plates comprise one vertical plate portion and an inclined plate portion which is flared outwards, but a person skilled in the art may conceive of guide protection plates of other shapes, such as C-shaped guide protection plates, etc., as long as the guiding and protecting functions thereof can be achieved.

Fig. 2 is a view of the locking device of fig. 1 comprising a hook, a slider and a self-locking handle, wherein the upper three figures are respectively a front view, a side view and a back view thereof in a locked position, and the lower figure is an exploded view thereof.

In particular, as will be clear from the exploded view below, the illustrated hooks are preferably two and are arranged opposite one another, respectively referred to as a first hook 23 and a second hook 24, each hook having two arms, a first arm and a second arm, separated at an angle, the connection of the first and second arms being provided with a hole for the passage of a pivot of the hook, which is provided on a side wall of the jack box, so that the hook can pivot about its pivot.

Preferably, a torsion spring 27 is sleeved on the pivot of the hook, one end of the torsion spring is connected to the first arm or the second arm of the hook, and the first hook and the second hook are respectively matched with the corresponding torsion springs connected with the first hook and the second hook, so that the first hook and the second hook can be always kept in a tightening state and can be automatically reset to the locking positions of the first hook and the second hook. It is of course also possible to dispense with a torsion spring, in which case the first hook and the second hook will not be able to be automatically reset into their locking positions, which would require manual operation if the first hook and the second hook were to be brought into their locking positions.

Further, each of the first and second hooks includes a locking end 231 and a connecting end 232, the locking end being a free end of the first arm, the connecting end being a free end of the second arm, the locking end of the first hook and the locking end of the second hook being capable of being snapped into the corresponding first and second snap grooves 11 and 12 on both sides of the bus duct, respectively, the connecting ends of the first and second hooks being connected to opposite sides of the slider 28, respectively.

Preferably, the locking ends of the first hook and the second hook are both provided with top slopes 2311, and when the jack box contacts the bus duct, the bottom surface and the side surface of the bus duct are contacted with the top slopes to push the first hook and the second hook away; when the locking end of first couple and second couple upwards slided along the bus duct side and surpassed the draw-in groove of its side, under the effect of torsional spring, the locking end of first couple and second couple is respectively in the first draw-in groove and the second draw-in groove of automatic resilience buckle to the bus duct, makes the jack box automatic hug closely the bus duct.

As shown in fig. 7, preferably, the locking end of the second hook is further provided with a reverse-installation fool-proof slot, and when the jack box is reversely installed, the protrusion 13 provided on the bus duct can be snapped into the reverse-installation fool-proof slot 241 to realize a fool-proof function, thereby preventing erroneous installation and damage to the device.

In the present invention, the hook is pivotable about its pivot axis between a locked position locking the jack box with the bus duct and an unlocked position unlocking the jack box with the bus duct (as shown more clearly in fig. 2).

The slider is connected with the connecting end of the hook and can slide between the locking position and the unlocking position, namely the slider is a linkage slider, and when the hook pivots to the locking position, the slider slides to the locking position; when the hook is pivoted to its unlocked position, the slider also slides to its unlocked position.

Preferably, the slide is arranged in a slide 29 so as to be able to slide up and down in the slide, which slide is formed by a baffle projecting outwards, which baffle is fixed to a side wall of the plug box. The slider is connected to the handle by a link 32 to drive the slider to slide as the handle pivots.

Wherein the pivot 312 of the handle is fixed to the side wall of the jack box, the handle being able to pivot about its pivot. As shown in fig. 3, an elongated runner 311 is provided in the handle, which is located below the pivot of the handle when the handle is in the locked position.

Wherein the first end of the connecting rod is connected to the sliding block, the second end of the connecting rod is positioned in the sliding chute, when the handle is positioned at the locking position, the second end of the connecting rod is positioned at one end of the sliding chute close to the pivot of the handle, and when the handle is positioned at the unlocking position, the second end of the connecting rod is positioned at the other end of the sliding chute far away from the pivot of the handle. When the handle is pulled downwards around the pivot to exceed the dead point position, the handle can be in the locking position, and the self-locking of the handle is realized, so that the jack box is firmly assembled on the bus duct; when the jack box is required to be detached from the bus duct, the handle is pulled upwards around the pivot, and the hook can be opened under the driving of the linkage sliding block, so that the jack box can be taken down by loosening the bus duct.

Preferably, a compression spring 313 is arranged in the handle, and is sleeved on a pin 314 connected with the connecting rod 32, the upper end of the compression spring is pressed against a pin 315, and the other end of the compression spring is pressed against the pin 314, so that the handle is always kept at a dead point position without opening after being in a locking position. Of course, the pressure spring may not be provided.

From the above description of the hook, the slider and the handle, it can be seen that the handle is able to link the slider by means of the link when the handle is pivoted about its pivot between the locking position and the unlocking position, the slider linking the hook pivoting about its pivot between said locking position and said unlocking position, so as to be able to lock and unlock the junction box and the bus duct.

Preferably, a baffle 30 is arranged on the side wall of the plug box and positioned above the sliding block and a part of the hooks to protect the sliding block and the hooks, the middle part of the baffle protrudes outwards to form a slide way 29 to ensure that the sliding block slides according to a specified position, and the part of the baffle corresponding to the sliding block is provided with an opening to prevent the sliding block from sliding up and down.

Preferably, the locking means comprising the hook, slider and handle are provided on side walls of the jack box, one locking means on each opposing side wall.

The locking device and related components provided on the side wall of the jack box are described above with reference to fig. 1-4 and 7, and the process of hanging up the jack box on the bus duct and releasing the jack box from the bus duct is described below with reference to fig. 5 and 6.

As shown in the upper drawing in fig. 5, the locking device is in a closed or locked position when the jack box has not been mounted on the bus duct; as shown in the lower drawing of fig. 5, when the jack box needs to be hung on the bus duct, the handle is manually pulled, the first hook and the second hook are opened under the driving of the linkage slider connected with the handle under the condition that the handle pivots around the pivot of the handle, the jack claws of the jack box are inserted into the copper bar conductors corresponding to the bus duct, when the locking ends of the first hook and the second hook respectively slide upwards along the side surface of the bus duct and exceed the first clamping groove and the second clamping groove on the side surface of the bus duct, the locking ends of the first hook and the second hook respectively and automatically rebound to be clamped into the first clamping groove and the second clamping groove of the bus duct under the action of the torsion spring, so that the jack box automatically clasps the bus duct, and then the handle is pulled downwards around the pivot of the handle to exceed the dead point position to enable the handle to be located at the locking position, so that the jack box is firmly locked on the bus duct.

As shown in the upper drawing in fig. 6, the locking device is in a dead or locked position when the jack box has been mounted on the bus duct; as shown in the lower drawing in fig. 6, when the jack box needs to be detached from the bus duct, the handle is firstly pulled manually, the first hook and the second hook are opened under the driving of the linkage slider connected with the handle under the condition that the handle pivots around the pivot shaft of the handle, and the jack box can be directly detached from the bus duct after the locking ends of the first hook and the second hook are disengaged from the first clamping groove and the second clamping groove on the side surface of the bus duct.

Although the present invention has been described in detail above with reference to the preferred embodiments of the present invention, the present invention is not limited to the above-mentioned embodiments, and those skilled in the art can also select the arrangement structure of the hook, the slider, the handle, etc. of the locking device according to the specific application under the teaching of the present invention, and add or reduce some parts of the locking device or the jack box as long as the object of the present invention can be achieved. Accordingly, the scope of the invention is to be defined only by the claims appended hereto, and by their equivalents.

Claims

1. A jack box (2) for fitting to a bus duct (1), characterized in that it comprises a locking device (21) comprising:

a hook (22) provided on a side wall of the jack box and pivotable about a pivot thereof between a locked position locking the jack box with the bus duct and an unlocked position unlocking the jack box with the bus duct, the hook comprising a locking end (231) and a connecting end (232), the locking end of the hook being snappable in a catch of the bus duct;

a slider (28) connected to the connection end of the hook and slidable between the locked position and the unlocked position; and

a handle (31) which can pivot around a pivot thereof and which is connected with the slider by a link,

wherein the handle is capable of linking the slider via the link when the handle pivots about its pivot between the locked position and the unlocked position, the slider linking the hook to pivot the hook about its pivot between the locked position and the unlocked position so as to enable locking and unlocking of the junction box and the bus duct.

2. A jack box according to claim 1 wherein the latch has first and second angularly spaced arms, the latch being provided with an aperture at the junction of the first and second arms for the pivot of the latch to pass through.

3. A jack box according to claim 2, wherein the hooks comprise a first hook (23) and a second hook (24) arranged opposite each other, each of the first and second hooks comprising a locking end and a connecting end, the locking ends of the first and second hooks being able to snap into a respective first (11) and second (12) card slot on both sides of the bus duct, respectively, the connecting ends of the first and second hooks being connected to opposite sides of the slider, respectively.

4. A jack box according to claim 3 wherein the locking end is the free end of the first arm and the connecting end is the free end of the second arm.

5. A jack box according to claim 4, in which the first and second hooks each cooperate with a respective torsion spring (27) connected thereto to enable the first and second hooks to remain in a tightened condition at all times and to be automatically returned to their locked positions.

6. The jack box of claim 5, wherein the locking ends of the first and second hooks are provided with top slopes (2311) that push the first and second hooks apart by contacting the top slopes with the bottom and side surfaces of the bus duct when the jack box contacts the bus duct; when the locking end of the first hook and the second hook respectively upwards slides along the side face of the bus duct and exceeds the first clamping groove and the second clamping groove on the side face of the bus duct, under the action of the torsion spring, the locking end of the first hook and the locking end of the second hook respectively automatically rebound and are buckled in the first clamping groove and the second clamping groove of the bus duct, and the jack box automatically clasps the bus duct.

7. A jack box according to claim 6, wherein the locking end of the second hook is further provided with a reversed fool-proof slot (241), and when the jack box is reversely installed, a protrusion (13) provided on the bus duct can be snapped into the reversed fool-proof slot to realize the fool-proof function.

8. A jack box according to any one of claims 5 to 7, wherein the slides are arranged on slides (29) so as to be able to slide up and down in the slides, the slides being formed by projections of the baffle which are fixed to the side walls of the jack box.

9. A jack box according to claim 8 wherein the slide is connected to the handle by a link (32) to cause the slide to slide as the handle pivots.

10. A jack box according to claim 9, in which the handle is provided with an elongate slide slot (311) therein which is located below the pivot (312) of the handle when the handle is in the locked position.

11. A jack box according to claim 10 wherein a first end of the link is connected to the slide and a second end of the link is located in the channel, the second end of the link being located at one end of the channel adjacent the pivot of the handle when the handle is in the locked position and at the other end of the channel remote from the pivot of the handle when the handle is in the unlocked position.

12. A jack box according to claim 11 wherein the locked position of the handle is achieved when the handle is pulled downwardly about its pivot beyond a dead centre position and the unlocked position of the latch is achieved when the handle is pulled upwardly about its pivot.

13. A jack box according to any one of claims 1-7, characterised in that a compression spring (313) is provided in the handle, which spring is fitted over a pin (314) connected to the link (32), the compression spring bearing at its upper end against the pin (315) and at its other end against the pin (314), together ensuring that the handle remains in a dead centre position and does not open after the locking position.

14. A jack box according to any one of claims 1-7 wherein a baffle (30) is provided on the side wall of the jack box above the slide and a portion of the hooks to protect the slide and hooks, the middle of the baffle projecting outwardly to form a slide (29) to ensure that the slide slides in a prescribed position, wherein the portion of the baffle corresponding to the slide is provided with an opening to prevent the slide from sliding up and down.

15. A jack box according to any one of claims 1 to 7, wherein a guide guard plate (25) is provided on the top wall of the jack box to enable the prongs (26) of the jack box to be correctly inserted into the respective copper bar conductors of the bus duct.

16. A jack box according to any one of claims 1 to 7, wherein the locking means are provided on side walls of the jack box, one locking means on each opposing side wall.