DE112020005984T5 - WATERPROOF RAIL WITH CABLE RETRACTION MECHANISM - Google Patents

Abstract

The present invention relates to a cable retractable waterproof bus bar which includes a base plate, a plug, a cover above the base plate and with the base plate to form a chamber with one or more cables embedded in the chamber; the aperture is characterized by a slit formed along the length of the chamber. The bus bar also includes an adjustment mechanism located in the chamber and connected to the cable assembly, and a lower end in the chamber and an upper end in the chamber provided by the slider extends across the bezel out to the exit head, with the plug attached to the end of the exit head; the output head is attached to the free end of the cable and can be connected by the adjustment mechanism and pulled towards the slide groove so that the cable slides on the adjustment mechanism to achieve the length towards the slide groove in a telescopic and adjustable manner. The power rail is effectively adjustable to the cable length and waterproof.

Description

Referenced Applications

This application is entitled to the priority of the Chinese patent application CN201911216791.0 , filed on December 2, 2019.

technical field

The present invention relates to the field of lighting technology, and in particular to a waterproof busbar with a cable retraction mechanism.

Technical background

Busbars are widely used in supermarket shelves, shopping malls and other places, but the existing busbars have a fixed internal wire length, so they cannot be used according to the current power supply. The length of the shelf depends on the distance to the area that is actually to be illuminated.

If the internal cables of the power track are too short and the distance to be illuminated is long, an external cable is required to power the entire shelf, which is unaesthetic and unsafe; and if the power track's internal cables are too long and the actual distance to be lit on the shelf is short, this is also a problem. This leads to a part of the busbars not being used, which means a waste of resources.

At the same time, the usual power pickup bars are not waterproof and are susceptible to moisture, which affects performance.

content of the invention

In view of the above problem, the object of the present invention is to provide a waterproof bus bar with a cable retraction mechanism that can be adjusted according to practical needs and has a good waterproof property.

1. (a) eine Grundplatte, einen Stecker, eine Blende, die die Grundplatte abdeckt und die Grundplatte umschließt, um eine Kammer zu bilden; und ein in die Kammer eingebettetes Kabel.

In order to achieve the above object, the present invention provides a waterproof bus bar with a cord retraction mechanism, comprising:

1. (a) a base, a plug, a bezel covering the base and enclosing the base to form a chamber; and a cable embedded in the chamber.

• (b) die Blende ist mit einem Schlitz versehen, der sich über die Länge der Kammer erstreckt. Die Stromschiene umfasst auch einen Verstellmechanismus, der sich in der Kammer befindet und mit mindestens einem Kabel zusammengebaut ist, und einen Ausgangskopf, dessen unteres Ende sich in der Kammer befindet und dessen oberes Ende sich von der Blende aus erstreckt, während es in dem Schlitz gleitet; und der Stecker ist mit dem oberen Ende des Ausgangskopfes verbunden.

It is characterized in that:

• (b) the baffle is provided with a slit extending the length of the chamber. The bus bar also includes an adjustment mechanism located in the chamber and assembled with at least one cable, and an output head having a lower end located in the chamber and an upper end extending from the bezel while sliding in the slot ; and the plug is connected to the top end of the output head.

The output head is fixed to the free end of the cable and can be pulled along the direction of the slot under the coordination/adjustment of the adjustment mechanism to drive the cable to slide on the adjustment mechanism and achieve an adjustable length in the direction of the slide slot.

Preferably, the adjusting mechanism comprises a spring and a movable element that can be moved along the pulling direction of the output head and driven by the output head.

The spring is positioned along the length of the chamber and is fixed at one end inside the chamber and at the other end connected to a movable member.

The fixed end of the cable is fixed in the chamber and the free end is connected to the exit head after bypassing the movable element, whereby the cable can be wound up when the exit head is pulled. The movable member slides, and the movement of the movable member causes the length of the cable on the free end side to become longer and that of the cable on the fixed end side to become shorter.

Preferably, the lower surface of the dispensing head is in frictional contact with the inner wall of the base, and the friction generates a frictional force greater than the restoring force of the spring, so that the dispensing head can be positioned in the slot.

Preferably, when the length of the cable is shortened to zero on the fixed end side, the movable member faces the fixed end of the cable.

Preferably the length of the slot is equal to N times the maximum distance between between the mobile element and the fixed end of the cable, where N has a value of 0 < N≤ 2.

Preferably, the spring is in a loaded condition when the exit head is at the end of a slide slot near the end of the spring.

Preferably, the cables have two conductors, a positive conductor and a negative conductor, and the surface of the movable member has two arcuate grooves arranged in concentric circles.

The positive conductor fixing end and the negative conductor fixing end are fixed to the base plate by the fixing block, and the free end is respectively passed through the corresponding arc groove and the free end is fixed to the base plate. The exits are connected to each other and can slide in the arcuate grooves.

Preferably, the bus bar includes an input end cap located at the end of the chamber and extending into the chamber, the input end cap having a DC head divided into a positive input line and a negative input line.

The positive input lead and the negative input lead split as they extend to the fixation block, with one forming the positive conductor and the other forming the negative conductor. They continue down the length of the chamber after passing through the fixation block to form the next positive and negative input leads.

The screen is accordingly provided with a plurality of slides or slots distributed in series along the length of the chamber.

Preferably, the base plate is provided with a slide rail along the length of the chamber, and the underside of the movable member and the underside of the exit head are each provided with a slide slot suitable for sliding on a rail.

Preferably, the base plate is also provided with a steel cable arranged along the length of the chamber, and the entrance end cover and the fixation block are each fixedly connected to the steel cable.

The advantage of the present invention over the prior art is that a movable element is provided within the busbar and the free end of the cable bypasses the movable element and is connected to the output head which slides in the slots of the visor and the movable elements moved in the same direction by pulling the exit head; and then the free end of the power cable slides and lengthens on the movable element, while the fixed end is shortened, making it possible to increase the length of the cable of the power rail. The adjustment improves the applicability of the power rail; a fixing block is placed where the cable forms a split, which can well prevent the split from being exposed to water intrusion.

character list

• 1 Fig. 12 is a schematic representation of the overall structure of the waterproof busbar with cable retraction mechanism of this application.
• 2 Fig. 12 is a schematic representation of a first side view of the assembly in which the output head of Figs 1 is partially removed.
• 3 12 is a schematic representation of a second side view of the structure of FIG 2 .

Detailed description of the embodiments

Embodiments of the invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar wording used in the present specification denotes the same or similar components or components having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and only serve to explain the invention and are not to be understood as limiting the invention.

In the 1 until 3 the structure of the cable retraction provided waterproof busbar according to the invention is shown schematically. The power or power supply rail comprises a base plate 1, a connector 2, a screen 3, which covers and encloses the base plate 1 to form a chamber 10, and at least one embedded cable 4 within the chamber 10. The power rail comprises in addition to the above also other structures, such. B. Brackets, supply heads. However, since these are not the focus of the present patent application and are known to the person skilled in the art, they will not be discussed in detail here. It who which only describes the essential points of the present application.

In order to achieve telescoping and adjustable cable lengths for different lighting length requirements, the screen 3 of the power rail is provided with a slot 31 formed longitudinally along the chamber 10; the conductor rail also comprises an adjustment mechanism 5 arranged in the chamber 10 and assembled with the cables 4, the lower end of which is located inside the chamber 10 and the upper end of which protrudes through the slot 31 from the panel 3; the exit head 6 and the free end of the cable 4 are fixed and can be pulled towards the slot 31 in cooperation with the adjustment mechanism 5; the movement can drive the cable 4 to slide on the adjustment mechanism 5. It is clear that a change in the position of the dispensing head 6 means a change in the length of the cable 4.

At the same time, it is easy to imagine that the outlet 6 is best suited for an external power supply to facilitate subsequent assembly connections with lighting devices, which is why the mentioned plug 2 is correctly placed at the top of the outlet head 6.

Specific to this application, as in 2-3 As shown, the adjustment mechanism 5 includes a movement that can be driven by the exit head 6 in the direction of pulling along the exit head 6 . The spring 51 is positioned along the length of the chamber 10 and is attached at one end to the end of the chamber 10 and at the other end to the movable member 52 . The fixed end of the cable 4 connected to the mobile element 52 is fixed in the chamber 10 and the free end is connected to the exit head 6 after bypassing the mobile element 52 . The cable 4 can slide around the movable member 52 when the exit head 6 is pulled, and the movement of the movable member 52 acts so that the free end side of the length of the cable becomes longer and the cable on the fixed end side becomes shorter.

It is evident that as long as the spring 51 is not in its natural state, whether it is in tension or compression, it will have an effect on the movable element 52 to generate a force which will resist the movement of the cable at the free end, which in turn causes the position of the output head 6 to change as well. That is, the exit head 6 cannot be fixed in the desired position. Obviously, such a situation cannot be allowed to occur. In order to solve this problem, the lower surface of the dispensing head 6 is designed to be in frictional contact with the inner wall of the base plate 1; and the friction generated by this friction causes the lower surface of the dispensing head 6 to be in frictional contact with the inner wall of the base plate 1. The frictional force is greater than the spring force 51, i.e. this minimum frictional force will also be greater than the maximum spring force 51 of the spring, so as to ensure that the exit head 6 is positioned in the slot 31. It is also possible to have only the lower end made of soft rubber and the upper end made of a relatively hard material, such as plastic, which eases the friction when it is pulled into the sliders, or other material compositions can also be used that achieve the above effect.

It should be noted that no matter how the cable lengthens on the free end side and how the cable shortens on the fixed end side, the movable member 52 is of a cable length and even of the limitation of the fixed end of the cable is claimed; in other words, when the length of the cable 4 on the fixed end side is shortened to zero, the movable member 52 is level with the fixed end of the conductor 4; Concretely, in this example, the cable 4 has two conductors, a positive conductor 41 and a negative conductor 42, the fixed end of the positive conductor 41 and the fixed end of the negative conductor 42 being fixed to the base plate 1 by means of a fixing block 7. Thus, when the length of the cable on the fixed end side is shortened to zero, the movable member 52 is displaced against the block 7.

It also follows from the above characteristics that the maximum travel distance of the cable at the free end is twice the distance shortened by the cable at the fixed end. See also 1 . The movement of the exit head 6 is limited by the length of the slot 31 so that the cable at the free end gives the exit head its full slack, where the N value is 0<N<2, ie N times that through the cable am fixed end shortened route. In this application, the length of the slot 31 and the length of the exit head 6 are according to the cable, i.e. the length of the slot 31 is equal to N times the maximum distance between the mobile element and the fixed end of the cable, where N is 0 < N < 2 assumes.

Depending on whether the spring is always in compression or in extension, or if there is a change in motion from extension to more natural and then to compression. The functions of this application can be used in a process of changing from a compressed state to a natural state to a stretched one state can be realized. It is necessary to adjust the connection position between the spring 51 and the movable member 52. According to practical needs, when the dispensing head 6 is placed at the end of the slot 31 near said end of the spring 51, the present application preferably provides the spring 51 so that the spring is in a tensioned position throughout the process. The state of tension is weakest when the exit head 6 is at the other end of the slot 31 and is greatest when the spring 51 is under tension. The conductor or cable 4 is in the longest extension position.

In order to get a good sliding of the cable 4 on the mobile element 52, cf 2 , the surface of the movable member 52 has a concentric circular array of two arcuate slots 521 connecting respectively the free end of the positive conductor 41 and the free end of the negative conductor 42 to the output head 6 after passing through the respective arcuate slots 521; as an improvement, the inner wall of the arcuate groove 521 is gently curved to reduce the sliding friction of the cable and improve the sliding flexibility of the cable.

In continuation of 1 and 3 the bus bar also includes an input end cap 8 located at the end of the chamber 10 and extending into the chamber 10, the input end cap 8 being provided with a DC head element or head 9 connecting the positive input lead 91 and the negative input lead 92 separates. The input lead 92 extends to the fixation block 7 when it splits into two circuits, one forming the already mentioned positive conductor 41 and negative conductor 42 and the other, after passing through the fixation block 7, continuing along the length of the chamber 10 extends to form the next positive and negative input lines; It is envisaged that the bezel 3 would also be provided with a sliding slot 31 to mate with the nearest positive and negative input leads along the length of the chamber 10; that is, the feed path may be equipped with a variety of sliders, exit heads, movable members, springs, etc., as previously described, as required. This corresponds to the following structure on the mantlet 3, i.e. the mantlet 3 is equipped with several slits 31 in series along the chamber, so that the exit head 6 can be penetrated subsequently, while the following spring 51 is of course attached to the fixation block 7, as in 2 shown.

Meanwhile, because the positive input line 91 and the negative input line 92 have been divided into two paths at the fixing block 7, and the fixed end of the positive line 41 and the fixed end of the negative line 42 are all fixed in the fixing block 7, it can be used in connection with the 2-3 It can be imagined that the branching of the cables is equal to the branching of the pipe, and because the fixing block 7 covers the branched end of the pipe, it prevents moisture from entering and thus ensures good watertightness, the fixed fixing block 7 being of the Power supply waterproof rating of IP65 or higher.

To facilitate sliding, the base plate 1 is provided with a slide rail 11 along the length of the chamber 10, the underside of the movable element 52 and the exit head 6. The base is formed with a slide slot 522 and a slide slot 61 for sliding on the slide rail 11 . Also, the base plate 1 is equipped with a steel cable 12 slidable in the longitudinal direction of the chamber 10; and the input end cap 8 and the fixed fixing block 7 are fixedly connected to the cable 12, respectively.

In summary, the present invention relates to a cable-retracting waterproof busbar having a base, a plug, a cover over the base and enclosed with the base to form a chamber with one or more cables embedded in the chamber ; the aperture is characterized by a slit formed along the length of the chamber. The bus bar also includes an adjustment mechanism located in the chamber and connected to the cable assembly, and a lower end in the chamber and an upper end in the chamber provided by the slider extends beyond the platen to the output head , the plug being attached to the end of the output head; the output head is attached to the free end of the cable and can be connected by the adjusting mechanism and pulled towards the sliding groove so that the cable slides on the adjusting mechanism to achieve the length towards the sliding groove in a telescopic and adjustable manner. The power rail is effectively adjustable to the cable length and waterproof.

Although embodiments of the present invention have been shown and described, those skilled in the art will understand that without departing from the principles and purposes of the present invention, the scope of the invention is defined by the claims and their equivalents.

QUOTES INCLUDED IN DESCRIPTION

This list of documents cited by the applicant was generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Patent Literature Cited

• CN201911216791 [0001]

Claims (10)

A waterproof busbar with cord retraction mechanism, comprising: a base (1), a plug (2), a bezel (3) covering the base (1) and enclosing the base (1) to form a chamber (10); and a cable (4) embedded in the chamber (10); characterized in that the screen (3) is provided with a slot (31) formed along the length of the chamber (10), the busbar also includes an adjustment mechanism (5) located in the chamber (10) and having the cable (4) and has an exit head (6) whose lower end is located in the chamber (10) and whose upper end extends from the screen (3) while sliding in the slot (31). , and the plug (2) is connected to the upper end of the output head (6); the exit head (6) is firmly connected to the free end of the cable (4) and can be pulled along the direction of the slot (31) under the coordination of the adjustment mechanism (5) to cause the cable (4) to slide on the adjustment mechanism ( 5) to drive and achieve an adjustable length in the direction of the sliding slot (31). Waterproof busbar after claim 1 , characterized in that the adjusting mechanism (5) comprises a spring (51) and a movable element (52) which can move along the pulling direction of the output head (6) driven by the output head (6); the spring (51) is arranged along the length of the chamber (10) and is fixed at one end inside the chamber (10) and at the other end to the movable element (52). Waterproof busbar after claim 2 , characterized in that the lower end face of the output head (6) is in frictional contact with the inner wall of the base plate (1) and the frictional force generated by the friction is greater than the elasticity of the spring (51), so that the output head (6) in the slot (31) can be positioned. Waterproof busbar after claim 2 , characterized in that when the length of the cable (4) is shortened to zero on one side of the fixed end, the movable element (52) abuts the fixed end of the cable (4). Waterproof busbar after claim 4 , characterized in that the length of the slot (31) is equal to N times the maximum distance between the mobile element (52) and the fixed end of the conductor (4), and the value of N is in the range 0 < N < 2 lies. Waterproof busbar after claim 2 Characterized in that when the exit head (6) is at the end of a slot (31) near one end of the spring (51), the spring (51) is in a stretched state. Waterproof busbar after claim 2 , characterized in that the cable (4) has two conductors, a positive conductor (41) and a negative conductor (42), and the surface of the movable member (52) is provided with two arcuate grooves (521) arranged in concentric circles; the fixed end of the positive conductor (41) and the fixed end of the negative conductor (42) being fixed to the base plate (1) via the fixing block (7), while the free end is respectively fixed by the corresponding arcuate groove (521) runs and is connected to the output head (6) and can slide in the arcuate groove (521). Waterproof busbar after claim 7 characterized in that the busbar also includes an input end cover (8) located at the end of the chamber (10) and extending into the chamber (10); a dc head (9) being arranged on the input end cover (8), the dc head (9) being divided into a positive input line (91) and a negative input line (92); wherein when the positive input line (91) and the negative input line (92) extend to the fixation block (7), they are divided into two paths, one of which forms the positive line (41) and the negative electrode cable (42), and the other passes through the fixing block (7) and further extends along the longitudinal direction of the chamber (10) to form the next positive input line and negative input line; the plate (3) being respectively provided with a plurality of slideways (31) distributed in series along the longitudinal direction of the chamber (10). Waterproof busbar after claim 2 , characterized in that the base plate (1) is provided with a slide rail (11) arranged along the longitudinal direction of the chamber (10), the lower end surface of the movable element (52) and the lower end surface of the exit head (6) are each provided with sliding grooves (522, 61) suitable for sliding on the slide rail (11). Waterproof busbar after claim 8 , characterized in that the base plate (1) is also provided with a steel cable (12) arranged along the longitudinal direction of the chamber (10), and the input end cover (8) and the fixing block (7) are fixedly connected to the steel cable (12).

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