Locking and limiting structure and track power supply box

Abstract

The utility model provides a locking limit structure, which comprises a power supply box shell and a power connection column assembly arranged in one end of the power supply box shell, the power connection column assembly comprises a power connection column body and a conductive metal sheet arranged on the power connection column body, the power connection column body is provided with a swing arm, and the swing arm is connected with the conductive metal sheet. The swing arm drives the power connection column body to rotate to drive the conductive metal sheet to extend out of or retract into the power supply box shell; the limiting arm comprises a limiting arm body which is hinged with a pivot of the power supply box shell, an elastic reset part which is arranged at the top of one end of the limiting arm body and abuts against the inner wall of the power supply box shell, a clamping hook which is arranged at the bottom of one end of the limiting arm body, and a pressing part which is arranged at the other end of the limiting arm body; a limiting step is arranged at one end of the swing arm; by the adoption of the scheme, the swing arm is locked and unlocked through the limiting arm, and the defect that damage is likely to be caused when the swing arm is used for locking and unlocking is overcome.

Description

Technical Field

[0001] The utility model belongs to the technical field of track lights, and particularly relates to a locking and limiting structure and a track power supply box. Background Art

[0002] A track power supply box is a lighting power connection device installed on a track. Part of the track power supply box of a track light strip is installed on a matching track. Conductive metal strips are provided on both sides inside the track, and the track power supply box has rotatable conductive metal sheets. During installation, the conductive metal sheets on the track power supply box come into contact with the conductive metal strips inside the track, enabling the track power supply box to be powered on, and completing the power connection and disconnection functions of the track power supply box, thereby enabling the control of the installation and disassembly of the track light, as well as the control of the on and off of the track light.

[0003] In the existing design, the conductive metal sheet is usually installed on a rotating power connection post, and the swing arm drives the rotating power connection post to drive the conductive metal sheet to extend or retract into the track power supply box to achieve the power connection and disconnection of the track power supply box; in order to lock and unlock the swing arm, a hook is usually provided on the swing arm, and a clamping groove is provided on the track power supply box. The locking and unlocking of the swing arm are achieved through the clamping and unclamping of the hook and the clamping groove. However, the swing arm has a certain hardness, and during the locking and unlocking process a certain number of times, the hook is easily broken, causing the swing arm to fail and reducing the service life of the track power supply box. Summary of the Utility Model

[0004] The main purpose of the utility model is to provide a locking and limiting structure and a track power supply box. By providing a limiting arm, the limiting arm includes: a limiting arm body pivotally hinged to the power supply box housing, an elastic reset part provided at the top of one end of the limiting arm body and abutting against the inner wall of the power supply box housing, a hook provided at the bottom of one end of the limiting arm body, and a pressing part provided at the other end of the limiting arm body. A limiting step is provided at one end of the swing arm; pressing the pressing part causes the elastic reset part to abut against the inner wall of the power supply box housing and be compressed and deformed, driving the hook to disengage from the limiting step, so that the swing arm is in a rotatable state of being unlocked; releasing the pressing part, the elastic reset part recovers from the deformation, causing the hook to tightly abut against the limiting step, thereby making the swing arm in a locked and non-rotatable state; adopting the above scheme, the swing arm is locked and unlocked by the limiting arm, overcoming the shortcoming that the swing arm is easily damaged when locking and unlocking itself in the traditional design, improving the service life of the locking and limiting structure, and being beneficial to the popularization of the locking and limiting structure.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0006] A locking and limiting structure, comprising: a power box shell, and a power post assembly arranged in one end of the power box shell, the power post assembly comprising: a power post body, and a conductive metal sheet arranged in the power post body, the power post body is provided with a swing arm, the swing arm drives the power post body to rotate and drives the conductive metal sheet to extend or retract into the power box shell; wherein, it also includes: a limiting arm, the limiting arm comprising: a limiting arm body pivotally hinged to the power box shell, a limiting arm body arranged at the top of one end of the limiting arm body abutting against the power box An elastic reset part on the inner wall of the shell, a hook arranged at the bottom of one end of the limit arm body, and a pressing part arranged at the other end of the limit arm body, and a limit step is provided at one end of the swing arm; pressing the pressing part causes the elastic reset part to abut against the inner wall of the power box shell and be compressed and deformed, driving the hook to disengage from the limit step, so that the swing arm is in an unlocked and rotatable state; releasing the pressing part, the elastic reset part is deformed and restored, so that the hook abuts against the limit step, thereby putting the swing arm in a locked and non-rotatable state.

[0007] As a preferred solution of the locking and limiting structure, the elastic reset portion is an arc-shaped elastic arm which is provided at the top of one end of the limiting arm body and is integrally formed with the limiting arm body, and the other end of the arc-shaped elastic arm abuts against the inner wall of the power box shell.

[0008] As a preferred solution of the locking limit structure, the other end of the swing arm extends downward to form a toggle limit block, and the power box shell is provided with a limit protrusion at a position corresponding to the toggle limit block, and the limit protrusion can abut against the toggle limit block to limit the rotation angle of the swing arm.

[0009] As a preferred solution of the locking and limiting structure, limiting clamping blocks are provided on both sides of the power connection post body, and the limiting clamping blocks can rotate with the power connection post body, thereby extending or retracting relative to the power box shell.

[0010] The utility model also provides a track power supply box, comprising: a power switch knob, a first power metal sheet, and a power connection ring, which also includes the locking limit structure as described above; the power switch knob comprises: a knob mounting seat, and a knob body connected to the knob mounting seat, and the knob mounting seat can also be rotatably mounted on the bottom of the power column body; the power connection ring and one end of the first power metal sheet can be rotatably mounted on the knob mounting seat and then clamped between the knob mounting seat and the knob body from top to bottom, and the power connection ring abuts against one end of the first power metal sheet and is electrically connected to it.

[0011] As a preferred embodiment of the track power supply box, the track power supply box further includes: a second power connection metal sheet fixed inside the power supply box housing; one of the conductive metal sheets passes through the main body of the power connection column and extends out from its side to form a first conductive tab, the first conductive tab is offset by a certain angle from the first power connection metal sheet, and rotating the main body of the power connection column can make the first conductive tab abut and electrically connect to one end of the first power connection metal sheet; the other of the conductive metal sheets passes through the main body of the power connection column and extends out from its bottom to form a second conductive tab, the top surface of the power connection ring is provided with a power connection protrusion, the power connection protrusion passes through the knob mounting seat and is offset by a certain angle from the second power connection metal sheet, and rotating the switch knob can make the power connection protrusion abut the second conductive tab and electrically connect to it.

[0012] As a preferred embodiment of the track power supply box, the track power supply box further includes: a control circuit board, on which two elastic power connection clips are provided, the other ends of the first power connection metal sheet and the second power connection metal sheet respectively extend into the corresponding elastic power connection clips and are electrically connected to the corresponding elastic power connection clips.

[0013] As a preferred embodiment of the track power supply box, elastic hooks are provided on both sides of the power supply box housing, and the elastic hooks are used for clamping into the clamping grooves in the power connection track.

[0014] As a preferred embodiment of the track power supply box, the track power supply box further includes: a toggle switch, which is arranged on one side of the control circuit board and extends out through the power supply box housing to the outside.

[0015] As a preferred embodiment of the track power supply box, mounting holes are provided at the bottom of the power supply box housing, and the mounting holes are used for detachably mounting the mounting rod of the lamp; a detachable panel is provided on the side of the power supply box housing at a position corresponding to the mounting holes, and the detachable panel is used for exposing the connection position of the control circuit board and the power cord led out from the lamp.

[0016] The beneficial effects of the present utility model are:

[0017] A locking and limiting structure is proposed in the present utility model, which includes: a power supply box housing, and a power connection column assembly disposed inside one end of the power supply box housing. The power connection column assembly includes: a power connection column body, and a conductive metal sheet disposed on the power connection column body. The power connection column body is provided with a swing arm, and the swing arm drives the power connection column body to rotate to drive the conductive metal sheet to extend or retract into the power supply box body. By providing a limiting arm, the limiting arm includes: a limiting arm body pivotally hinged to the power supply box housing, an elastic reset portion disposed at the top of one end of the limiting arm body and abutting against the inner wall of the power supply box housing, a hook disposed at the bottom of one end of the limiting arm body, and a pressing portion disposed at the other end of the limiting arm body. A limiting step is provided at one end of the swing arm. Pressing the pressing portion causes the elastic reset portion to abut against the inner wall of the power supply box housing and be compressed and deformed, driving the hook to disengage from the limiting step, so that the swing arm is in a rotatable state of unlocking. Releasing the pressing portion, the elastic reset portion deforms and recovers, causing the hook to tightly abut against the limiting step, thereby making the swing arm in a locked and non-rotatable state. With the above solution, the swing arm is locked and unlocked by the limiting arm, overcoming the disadvantage that the swing arm is easily damaged when locking and unlocking itself in the traditional design, improving the service life of the locking and limiting structure, and being beneficial to the popularization of the locking and limiting structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained according to these drawings, all of which belong to the protection scope of the present utility model, where:

[0019] Figure 1 is a schematic structural diagram of a track power supply box provided by the present utility model;

[0020] Figure 2 is Figure 1 a cross-sectional view of the track power supply box shown;

[0021] Figure 3 is Figure 1 an exploded view of the track power supply box shown;

[0022] Figure 4 is Figure 3 a schematic structural diagram of the track power supply box shown with the power supply box housing removed;

[0023] Figure 5 is Figure 3 a schematic structural diagram of the power connection column assembly of the track power supply box shown;

[0024] Figure 6 is Figure 3Schematic diagram of the power connection switch knob of the track power supply box shown Detailed implementation mode

[0025] The technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0026] In the description of the present invention, the term "a plurality of" refers to two or more, unless otherwise clearly defined. The term "and / or" used herein includes any and all combinations of one or more of the related listed items. Terms such as "installation", "connection", "connection", "fixation" and other terms should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection or an integral connection; "connection" can also be a direct connection or an indirect connection through a medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] It should be noted that when an element is referred to as being "assembled on", "installed on", "fixed on" or "set on" another element, it can be directly connected to the other component or there can be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there can also be an intermediate element. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are only for the purpose of illustration and do not represent the only implementation mode.

[0028] In the description of this specification, the description of terms such as "one embodiment", "some embodiments", "specific embodiments" etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0029] The track power supply box is a lamp power connection device installed on the track. Part of the track power supply box of the track light strip is installed on the matching track. Conductive metal strips are provided on both sides inside the track, and the track power supply box has a rotatable conductive metal sheet. During installation, the conductive metal sheet on the track power supply box contacts the conductive metal strips inside the track, and the track power supply box can be powered on, completing the power connection and power-off functions of the track power supply box, so as to control the installation and disassembly of the track light and the opening and closing of the track light.

[0030] In the existing design, a conductive metal sheet is usually installed on a rotating power connection post. The swing arm drives the rotating power connection post to drive the conductive metal sheet to extend or retract into the track power supply box, so as to realize the power connection and disconnection of the track power supply box. In order to lock and unlock the swing arm, a hook is usually arranged on the swing arm and a clamping groove is arranged on the track power supply box. The locking and unlocking of the swing arm are realized by the clamping and unclamping of the hook and the clamping groove. However, the swing arm has a certain hardness, and during the locking and unlocking process for a certain number of times, the hook is easily broken, causing the swing arm to fail and reducing the service life of the track power supply box.

[0031] In the present utility model, as Figure 1 , Figure 2 and Figure 3 shown, an embodiment of the present utility model provides a track power supply box, which includes: a power connection switch knob 10, a first power connection metal sheet 20, a second power connection metal sheet 30, a power connection ring 40, a control circuit board 50, a toggle switch 60, and a locking and limiting structure 70;

[0032] Among them, the power connection switch knob 10, the first power connection metal sheet 20, the second power connection metal sheet 30, the power connection ring 40, the control circuit board 50, and the toggle switch 60 are all installed on the locking and limiting structure 70. The control circuit board 50 is electrically connected to the locking and limiting structure 70 through the power connection switch knob 10, the first power connection metal sheet 20, the second power connection metal sheet 30, and the power connection ring 40. The toggle switch 60 is used to control the dimming and color adjustment of the lamps installed in the power supply box, and the locking and limiting structure 70 is used to install the track power supply box on the power connection track.

[0033] Specifically, the locking and limiting structure 70 includes: a power supply box housing 71 and a power connection post assembly 72 arranged inside one end of the power supply box housing 71. The power connection post assembly 72 includes: a power connection post body 721 and a conductive metal sheet 722 arranged on the power connection post body 721. The power connection post body 721 is provided with a swing arm 7211. The swing arm 7211 drives the power connection post body 721 to rotate to drive the conductive metal sheet 722 to extend or retract into the power supply box housing 71. The conductive metal sheet 722 can be clamped with the power connection groove in the power connection track, so that the power connection post assembly 72 is electrically connected to the power connection track;

[0034] The limiting arm 73 further comprises: a limiting arm 73, the limiting arm 73 comprising: a limiting arm body 731 pivotally connected to the power box housing 71, an elastic reset portion 732 disposed at the top of one end of the limiting arm body 731 and abutting against the inner wall of the power box housing 71, a hook 733 disposed at the bottom of one end of the limiting arm body 731, and a pressing portion 734 disposed at the other end of the limiting arm body 731, and a limiting step 72111 is disposed at one end of the swing arm 7211;

[0035] During operation, the pressing portion 734 is pressed so that the elastic reset portion 732 abuts against the inner wall of the power box housing 71, thereby compressing and deforming the elastic reset portion 732, driving the hook 733 to disengage from the limiting step 72111, so that the swing arm 7211 is in an unlocked rotatable state. At this time, the limiting arm 73 cannot drive the power connection column assembly 72 to rotate, and the locking limiting structure 70 is separated from the power connection track.

[0036] When the pressing portion 734 is released, the elastic reset portion 732 is deformed and restored, so that the hook 733 is pressed against the limiting step 72111, so that the swing arm 7211 is in a locked and non-rotatable state. At this time, the limiting arm 73 can drive the power connection post assembly 72 to rotate, so that the conductive metal sheet 722 can be engaged with the power connection groove in the power connection track.

[0037] In the utility model, the above-mentioned scheme is adopted to lock and unlock the swing arm 7211 through the limiting arm 73, thereby overcoming the disadvantage of the traditional design that the swing arm 7211 itself is used for locking and unlocking, which easily causes damage to the swing arm 7211 itself, thereby improving the service life of the locking and limiting structure 70, and facilitating the promotion of the locking and limiting structure 70.

[0038] Specifically, Figure 4 , Figure 5 and Figure 6 As shown, the elastic reset portion 732 is an arc-shaped elastic arm provided at one end of the top of the limiting arm body 731 and integrally formed with the limiting arm body 731 , and the other end of the arc-shaped elastic arm abuts against the inner wall of the power box shell 71 .

[0039] In order to limit the rotation range of the swing arm 7211, the other end of the swing arm 7211 extends downward to form a toggle limit block 72112, and the power box shell 71 is provided with a limiting protrusion 711 at a position corresponding to the toggle limit block 72112. The limiting protrusion 711 can abut against the toggle limit block 72112 to limit the rotation angle of the swing arm 7211.

[0040] To initially install the locking and limiting structure 70 on the power connection track, limiting and clamping blocks 7212 are provided on both sides of the power connection column body 721. The limiting and clamping blocks 7212 can rotate with the power connection column body 721, so as to extend out or retract relative to the power supply box housing 71. The limiting and clamping blocks 7212 can be clamped into the card slots in the power connection track, thereby initially installing the locking and limiting structure 70 on the power connection track.

[0041] To install the power connection switch knob 10, the first power connection metal sheet 20, and the power connection ring 40, the power connection switch knob 10 includes: a knob mounting base 11 and a knob body 12 that is clamped and connected to the knob mounting base 11. The knob mounting base 11 is also rotatably mounted at the bottom of the power connection column body 721, thereby rotatably mounting the power connection switch knob 10 at the bottom of the power connection column body 721; one end of the power connection ring 40 and the first power connection metal sheet 20 is rotatably sleeved on the knob mounting base 11 and is sequentially clamped between the knob mounting base 11 and the knob body 12 from top to bottom. The power connection ring 40 abuts against one end of the first power connection metal sheet 20 and is electrically connected to it.

[0042] To supply power to the first power connection metal sheet 20 and the second power connection metal sheet 30, one of the conductive metal sheets 722 passes through the power connection column body 721 and extends out from its side to form a first conductive convex piece 7221. The first conductive convex piece 7221 is offset from the first power connection metal sheet 20 by a certain angle. Rotating the power connection column body 721 can make the first conductive convex piece 7221 abut against and be electrically connected to one end of the first power connection metal sheet 20;

[0043] The second power connection metal sheet 30 is fixed inside the power supply box housing 71. The other of the conductive metal sheets 722 passes through the power connection column body 721 and extends out from its bottom surface to form a second conductive convex piece 7222. A power connection protrusion 41 is provided on the top surface of the power connection ring 40. The power connection protrusion 41 passes through the knob mounting base 11 and is offset from the second power connection metal sheet 30 by a certain angle. Rotating the switch knob 10 can make the power connection protrusion 41 abut against the second conductive convex piece 7222 and be electrically connected to it.

[0044] To supply power to the control circuit board 50, two elastic power connection clip pieces 51 are provided on the control circuit board 50. The other ends of the first power connection metal sheet 20 and the second power connection metal sheet 30 respectively extend into the corresponding elastic power connection clip pieces 51 and are electrically connected to the corresponding elastic power connection clip pieces 51, so that the power connection column assembly 72 supplies power to the control circuit board 50 through the first power connection metal sheet 20 and the second power connection metal sheet 30.

[0045] In order to further install the track power supply box on the power connection track, elastic hooks 712 are provided on both sides of the power supply box housing 71. The elastic hooks 712 are used to engage with the card slots in the power connection track, so that the track power supply box is further installed on the power connection track through the elastic hooks 712.

[0046] In order to set the toggle switch 60, the toggle switch 60 is arranged on one side of the control circuit board 50 and then extends outwards through the power supply box housing 71. The toggle switch 60 is used to control the dimming and color adjustment of the lamps installed on the track power supply box.

[0047] In order to install the lamps, mounting holes 713 are provided at the bottom of the power supply box housing 71. The mounting holes 713 are used for detachably installing the mounting rods of the lamps, and then the lamps are installed at the bottom of the power supply box housing 71.

[0048] In order to facilitate wiring for the lamps, a detachable panel 714 is provided on the side of the power supply box housing 71 at a position corresponding to the mounting holes 713. The detachable panel 714 is used to expose the connection position of the power cord connected to the control circuit board 50 and led out by the lamps, facilitating the connection of the connecting wire of the lamps to the control circuit board 50.

[0049] The above has described the present utility model in detail in conjunction with the accompanying drawings, but the present utility model is not limited to the described embodiments. For those skilled in the art, without departing from the principles and spirit of the present invention, various changes, modifications, substitutions, and variations made to these embodiments still fall within the protection scope of the present utility model.

Claims

1. A locking and limiting structure, characterized in that: include: A power box housing, and a power post assembly disposed in one end of the power box housing, the power post assembly comprising: a power post body, and a conductive metal sheet disposed in the power post body, the power post body is provided with a swing arm, the swing arm drives the power post body to rotate and drives the conductive metal sheet to extend or retract into the power box housing; Wherein, it also includes: a limit arm, the limit arm includes: a limit arm body pivotally connected to the power box housing, an elastic reset portion arranged at the top of one end of the limit arm body abutting against the inner wall of the power box housing, a hook arranged at the bottom of one end of the limit arm body, and a pressing portion arranged at the other end of the limit arm body, and a limit step is arranged at one end of the swing arm; Pressing the pressing portion causes the elastic reset portion to abut against the inner wall of the power box housing and be compressed and deformed, driving the hook to disengage from the limiting step, so that the swing arm is in an unlocked and rotatable state; When the pressing portion is released, the elastic reset portion is deformed and restored, so that the hook is pressed against the limiting step, thereby putting the swing arm in a locked and non-rotatable state.

2. The locking and limiting structure according to claim 1, characterized in that: The elastic reset portion is an arc-shaped elastic arm provided at one end of the top of one end of the limiting arm body and integrally formed with the limiting arm body, and the other end of the arc-shaped elastic arm abuts against the inner wall of the power box housing.

3. The locking and limiting structure according to claim 1, characterized in that: The other end of the swing arm extends downward to form a toggle limit block, and the power box shell is provided with a limit protrusion at a position corresponding to the toggle limit block. The limit protrusion can abut against the toggle limit block to limit the rotation angle of the swing arm.

4. The locking and limiting structure according to claim 1, characterized in that: Limiting clamping blocks are provided on both sides of the power connection post body, and the limiting clamping blocks can rotate with the power connection post body, so as to extend or retract relative to the power box shell.

5. A track power supply box, comprising: The power switch knob, the first power metal sheet, and the power connection ring are characterized in that they also include a locking and limiting structure as described in any one of claims 1 to 4; The power switch knob comprises: a knob mounting seat and a knob body connected to the knob mounting seat by a clamp, and the knob mounting seat can also be rotatably mounted on the bottom of the power pole body; The electrical connection ring and one end of the first electrical connection metal sheet can be rotatably sleeved on the knob mounting seat and then clamped between the knob mounting seat and the knob body from top to bottom. The electrical connection ring abuts against one end of the first electrical connection metal sheet and is electrically connected thereto.

6. The track power supply box according to claim 5, characterized in that: The track power supply box further comprises: a second power-connecting metal sheet fixed in the housing of the power supply box; One of the conductive metal sheets passes through the power post body and then extends from the side thereof to form a first conductive protrusion, the first conductive protrusion is staggered with the first power contact metal sheet by a certain angle, and the first conductive protrusion can be rotated to abut against and electrically connect one end of the first power contact metal sheet; Another one of the conductive metal sheets passes through the power-connecting column body and extends from its bottom surface to form a second conductive protrusion. The top surface of the power-connecting connection ring is provided with a power-connecting protrusion. After passing through the knob mounting seat, the power-connecting protrusion is staggered at a certain angle with the second power-connecting metal sheet. Turning the switch knob can make the power-connecting protrusion abut against the second conductive protrusion and electrically connect with it.

7. The track power supply box according to claim 6, characterized in that: The track power supply box also includes: a control circuit board, on which two elastic power connection clips are arranged, and the other ends of the first power connection metal sheet and the second power connection metal sheet respectively extend into the corresponding elastic power connection clips and are electrically connected to the corresponding elastic power connection clips.

8. The track power supply box according to claim 5, characterized in that: Elastic hooks are provided on both sides of the power box housing, and the elastic hooks are used for engaging with the engaging grooves in the connecting rails.

9. The track power supply box according to claim 7, characterized in that: The track power supply box also includes: a toggle switch, which is arranged on one side of the control circuit board and extends outward through the power supply box shell.

10. The track power supply box according to claim 7, characterized in that: A mounting hole is provided at the bottom of the power box housing, and the mounting hole is used for detachably mounting a mounting rod of the lamp; A detachable panel is provided on the side of the power box housing at a position corresponding to the mounting hole, and the detachable panel is used to expose the connection position between the control circuit board and the power line connected to the lamp.

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