Power supply box rotating shaft structure and reflector lamp using same

Abstract

The power supply box rotating shaft structure comprises a power supply box and a rotating arm, the rotating arm is rotatably arranged in a through hole in the lower side of the power supply box, and the upper end of the rotating arm is provided with a boss part which is arranged between a rotating seat in the power supply box and the through hole. The upper ferrule and the lower ferrule are arranged between the upper side and the lower side of the boss part and the rotating base and the penetrating hole correspondingly, the rotating arm is clamped in the rotating base through the upper ferrule and the lower ferrule, the rotating smoothness of the rotating arm relative to the power source box is improved, the irradiation angle of the spotlight body can be adjusted conveniently, and the spotlight has the advantages of being easy to assemble and convenient to operate.

Description

Technical Field

[0001] The utility model relates to the technical field of lighting lamps, in particular to a power box rotating shaft structure and a spotlight using the same. Background Art

[0002] Spotlights (such as track spotlights, magnetic spotlights, etc.) are generally used as a specific spotlight, such as shopping malls, car shows, jewelry, star-rated hotels, museums, professional windows, counters and other key lighting places.

[0003] The power box and lamp holder of ordinary spotlights on the market are hard-connected, which makes it inconvenient to adjust the lighting range of the lamp holder. The few spotlights with rotatable lamp holders have complex structures, are prone to jamming during the rotation process, and produce noise, making them inconvenient to use. Summary of the invention

[0004] The utility model aims to solve the technical problem that the rotating lamp head of the existing spotlight is prone to jamming and noise generation, and provides a power box shaft structure with the advantages of simple assembly and smooth rotation.

[0005] The power box shaft structure includes a power box and a rotating arm, wherein a through hole is provided on the lower side of the power box, and the upper side of the rotating arm is rotatably arranged in the through hole, a rotating seat is arranged on the through hole in the power box, and a boss portion is provided on the upper end of the rotating arm and is placed between the rotating seat and the through hole, an upper ring is provided between the upper side of the boss portion and the rotating seat, and a lower ring is provided between the lower side of the boss portion and the through hole.

[0006] In the power box shaft structure as described above, a shaft hole is provided in the middle of the rotating seat, and the upper ring is sleeved between the outer wall of the upper end of the rotating arm and the shaft hole.

[0007] In the power box shaft structure as described above, the upper ring includes an upper washer portion and an upper shaft sleeve portion integrally arranged at the upper end of the upper washer portion, the upper washer portion has an inner diameter the same as that of the upper shaft sleeve portion, and an outer diameter larger than that of the upper shaft sleeve portion, the upper shaft sleeve portion is located between the wall of the shaft hole and the outer wall of the rotating arm, and the upper washer portion is located between the upper end surface of the boss portion and the lower end surface of the rotating seat.

[0008] As described above, in the power box shaft structure, a countersunk groove is provided on the through hole, and the lower ring is sleeved between the outer wall of the rotating arm located at the lower side of the boss portion and the countersunk groove.

[0009] As described above, in the power box shaft structure, the lower ring includes a lower washer portion and a lower shaft sleeve portion integrally arranged at the lower end of the lower washer portion, the lower washer portion has an inner diameter the same as that of the lower shaft sleeve portion, and an outer diameter larger than that of the lower shaft sleeve portion, the lower shaft sleeve portion is located between the through-hole wall and the outer wall of the rotating arm, and the lower washer portion is located between the lower end surface of the boss portion and the countersunk groove.

[0010] As described above, the power box shaft structure, the middle part of the rotating arm is hollow to form a wire passing cavity, including a shaft part rotatably connected to the power box and a hanging arm part detachably connected to the lower end of the shaft part, and the boss part is annularly convexly arranged on the outer wall of the shaft part.

[0011] As described above, in the power box shaft structure, connecting seats for detachably connecting to the corresponding two sides of the rotating seat are provided in the power box at both sides of the through hole.

[0012] In the power box shaft structure as described above, a rotation limiting mechanism for limiting the rotation angle of the rotating arm is arranged between the rotating arm and the power box, and the rotation limiting mechanism includes a rotation limiting portion arranged in the power box and protruding in the direction of the perforation, and a rotation stopping portion protruding from the outer wall of the boss portion and abutting against the rotation limiting portion.

[0013] In the power box shaft structure as described above, the upper ring and the lower ring are both made of plastic, and their contact surfaces with the boss portion are smooth.

[0014] Another object of the present application is to provide a spotlight, comprising a lamp body and the above-mentioned power box shaft structure, wherein the lamp body is hung at the lower end of the rotating arm and is electrically connected to the power box.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] The utility model provides a power box shaft structure and a spotlight using the same, comprising a power box and a rotating arm, wherein the rotating arm can be rotatably arranged in a through hole on the lower side of the power box, and the upper end of the rotating arm is provided with a boss portion placed between a rotating seat and the through hole in the power box, and an upper ring and a lower ring are respectively provided between the upper and lower sides of the boss portion and the rotating seat and the through hole, and the rotating arm is clamped in the rotating seat by the upper ring and the lower ring, thereby improving the smoothness of the rotation of the rotating arm relative to the power box, and facilitating the adjustment of the irradiation angle of the spotlight body. The present application has the advantages of simple assembly and convenient operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of the power supply box shaft structure in the embodiment of the utility model;

[0018] Figure 2 This is an exploded schematic diagram of the rotating shaft structure of the power box in the embodiment of the utility model;

[0019] Figure 3 This is an exploded schematic diagram of the power box shaft structure from another perspective in the embodiment of the utility model;

[0020] Figure 4 It is a cross-sectional schematic diagram of the rotating shaft structure of the power box along the transverse direction of the power box in the embodiment of the utility model;

[0021] Figure 5 It is a schematic cross-sectional view of the rotating shaft structure of the power box along the longitudinal direction of the power box in the embodiment of the utility model;

[0022] Figure 6 It is a schematic diagram of the assembly of the rotating arm, the rotating seat, the upper ring and the lower ring in the embodiment of the utility model;

[0023] Figure 7 An exploded schematic diagram of a rotating arm, a rotating seat, an upper ring, and a lower ring in an embodiment of the utility model. DETAILED DESCRIPTION

[0024] In order to make the technical problems, technical solutions and beneficial effects solved by the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0025] like Figure 1-7 As shown, the power box shaft structure includes a power box 1 and a rotating arm 2, wherein a through hole 10 is opened on the lower side of the power box 1, and the upper side of the rotating arm 2 is rotatably arranged in the through hole 10, and a rotating seat 11 is arranged on the through hole 10 in the power box 1, and a boss portion 21 is arranged on the upper end of the rotating arm 2 between the rotating seat 11 and the through hole 10, an upper ring 22 is arranged between the upper side of the boss portion 21 and the rotating seat 11, and a lower ring 23 is arranged between the lower side of the boss portion 21 and the through hole 10.

[0026] An embodiment of the present application provides a power box shaft structure, including a power box and a rotating arm, wherein the rotating arm can be rotatably arranged in a through hole on the lower side of the power box, and the upper end of the rotating arm is provided with a boss portion placed between a rotating seat and the through hole in the power box, and an upper ring and a lower ring are respectively provided between the upper and lower sides of the boss portion and the rotating seat and the through hole, and the rotating arm is clamped in the rotating seat by the upper ring and the lower ring, thereby improving the smoothness of the rotation of the rotating arm relative to the power box. The present application has the advantages of simple assembly and convenient operation.

[0027] Furthermore, a shaft hole 111 is provided in the middle of the rotating seat 11, and the upper ring 22 is sleeved between the outer wall of the upper end of the rotating arm 2 and the shaft hole 111. Figure 7As shown, the upper end of the upper ring 22 extends into the shaft hole 111, and the lower end is sleeved on the upper end of the rotating arm. This design can improve the smoothness of the rotation of the rotating arm relative to the power box.

[0028] Furthermore, the upper ring 22 includes an upper washer portion 221 and an upper sleeve portion 222 integrally arranged at the upper end of the upper washer portion 221, the upper washer portion 221 has the same inner diameter as the upper sleeve portion 222, and an outer diameter larger than the upper sleeve portion 222, the upper sleeve portion 222 is located between the hole wall of the axial hole 111 and the outer wall of the rotating arm 2, and the upper washer portion 221 is located between the upper end surface of the boss portion 21 and the lower end surface of the rotating seat 11. When in use, the upper sleeve portion 222 on the upper part of the upper ring 22 can rotate relative to the rotating seat 11 in the axial hole 111, and the upper end of the rotating arm located on the upper side of the boss portion 21 can rotate relative to the upper ring 22 in the upper washer portion 221. This design can improve the smoothness of the rotation of the rotating arm relative to the power box.

[0029] Furthermore, the through hole 10 is provided with a countersunk groove 101, and the lower ring 23 is sleeved between the outer wall of the rotating arm 2 located at the lower side of the boss portion 21 and the countersunk groove 101, as shown in FIG. Figure 4 As shown, the lower end of the upper ring 22 extends into the countersunk groove 101, and the upper end is sleeved on the middle part of the rotating arm located on the lower side of the boss portion 21. This design can improve the smoothness of the rotation of the rotating arm relative to the power box.

[0030] Furthermore, the lower ring 23 includes a lower washer portion 231 and a lower shaft sleeve portion 232 integrally arranged at the lower end of the lower washer portion 231, the lower washer portion 231 has the same inner diameter as the lower shaft sleeve portion 232, and an outer diameter larger than the lower shaft sleeve portion 232, the lower shaft sleeve portion 232 is located between the hole wall of the through hole 10 and the outer wall of the rotating arm 2, and the lower washer portion 231 is located between the lower end surface of the boss portion 21 and the countersunk groove 101. When in use, the lower shaft sleeve portion 232 at the lower part of the lower ring 23 can be relatively rotated in the through hole 10 relative to the rotating seat 11, and the rotating arm located in the middle part of the lower side of the boss portion 21 can rotate relative to the lower ring 23 in the lower washer portion 231. This design can improve the smoothness of the rotation of the rotating arm relative to the power box.

[0031] Furthermore, the middle part of the rotating arm 2 is hollow to form a wire passage cavity 20 for passing the power cord, including a rotating shaft portion 24 rotatably connected to the power box 1 and a hanging arm portion 25 detachably connected to the lower end of the rotating shaft portion 24. Threaded connection, snap-on connection or interference fit can be adopted, so that the rotating shaft portion 24 is first installed in the power box and then connected to the hanging arm portion 25. The hanging arm portion 25 is used to hang the lamp body. The boss portion 21 is annularly convexly arranged on the outer wall of the rotating shaft portion 24, and the upper ring and the lower ring are respectively sleeved on the upper and lower parts of the boss portion 21 to improve the smoothness of rotation.

[0032] Furthermore, connecting seats 12 for detachably connecting to the corresponding two sides of the rotating seat 11 are provided on both sides of the through hole 10 in the power box 1. This design can detachably connect the rotating seat to the power box. When in use, first put the lower ring into the through hole, then insert the rotating shaft into the lower ring, and then put the upper ring on the upper end of the rotating shaft, and then lock the rotating seat on the connecting seat, so that the upper end of the rotating arm can be rotated and set between the rotating seat and the through hole through the upper ring and the lower ring respectively. The connection method can be screw fastening point locking or other methods.

[0033] Furthermore, a rotation limiting mechanism for limiting the rotation angle of the rotating arm 2 is provided between the rotating arm 2 and the power box 1. The rotation limiting mechanism includes a rotation limiting portion 31 provided in the power box 1 and protruding toward the through hole 10, and a rotation stopping portion 32 protruding from the outer wall of the boss portion 21 and abutting against the rotation limiting portion 31. This design can avoid the problem of wire entanglement after the rotating arm rotates relative to the power box, thereby increasing the service life of the product.

[0034] Furthermore, the upper ring 22 and the lower ring 23 are both made of plastic, and their contact surfaces with the boss portion 21 are smooth. By providing plastic parts at the contact positions between the rotating arm and the power box to improve the smoothness of rotation, hard contact between the rotating arm and the power box is avoided. This design can reduce the friction coefficient and improve the smoothness of rotation.

[0035] An embodiment of the present application provides a spotlight, comprising a lamp body and a power box shaft structure as described above, wherein the lamp body is hung on the lower end of the rotating arm 2 and is electrically connected to the power box 1, and the power box shaft structure comprises a power box and a rotating arm, wherein the rotating arm is rotatably disposed in a through hole on the lower side of the power box, and the upper end of the rotating arm is provided with a boss portion placed between a rotating seat and the through hole in the power box, and an upper ring and a lower ring are respectively provided between the upper and lower sides of the boss portion and the rotating seat and the through hole, and the rotating arm is clamped in the rotating seat by the upper ring and the lower ring, thereby improving the smoothness of the rotation of the rotating arm relative to the power box, and facilitating the adjustment of the irradiation angle of the spotlight body. The present application has the advantages of simple assembly and convenient operation.

[0036] The above is a preferred embodiment of the present invention. It should be pointed out that a person skilled in the art can make several improvements and modifications without departing from the principle of the present invention. These improvements and modifications are also considered to be within the protection scope of the present invention.

Claims

1. A power box shaft structure, comprising a power box (1) and a rotating arm (2), wherein the power box (1) has a through hole (10) at the bottom, and the rotating arm (2) is rotatably disposed in the through hole (10) at the top, characterized in that: A rotating seat (11) is arranged on the through hole (10) in the power box (1), a boss portion (21) is arranged at the upper end of the rotating arm (2) and is placed between the rotating seat (11) and the through hole (10), an upper ring (22) is arranged between the upper side of the boss portion (21) and the rotating seat (11), and a lower ring (23) is arranged between the lower side of the boss portion (21) and the through hole (10).

2. The power supply box shaft structure according to claim 1, characterized in that: The middle of the rotating seat (11) is provided with an axial hole (111), and the upper ring (22) is sleeved between the outer wall of the upper end of the rotating arm (2) and the axial hole (111).

3. The power supply box shaft structure according to claim 2, characterized in that: The upper ring (22) comprises an upper washer portion (221) and an upper shaft sleeve portion (222) integrally arranged at the upper end of the upper washer portion (221); the inner diameter of the upper washer portion (221) is the same as that of the upper shaft sleeve portion (222) and the outer diameter is larger than that of the upper shaft sleeve portion (222); the upper shaft sleeve portion (222) is located between the hole wall of the shaft hole (111) and the outer wall of the rotating arm (2); and the upper washer portion (221) is located between the upper end surface of the boss portion (21) and the lower end surface of the rotating seat (11).

4. The power supply box shaft structure according to claim 1, characterized in that: The through hole (10) is provided with a countersunk groove (101), and the lower ring (23) is sleeved between the outer wall of the rotating arm (2) located at the lower side of the boss portion (21) and the countersunk groove (101).

5. The power supply box shaft structure according to claim 4, characterized in that: The lower ring (23) comprises a lower washer portion (231) and a lower shaft sleeve portion (232) integrally arranged at the lower end of the lower washer portion (231); the inner diameter of the lower washer portion (231) is the same as that of the lower shaft sleeve portion (232) and the outer diameter is larger than that of the lower shaft sleeve portion (232); the lower shaft sleeve portion (232) is located between the hole wall of the through hole (10) and the outer wall of the rotating arm (2); and the lower washer portion (231) is located between the lower end surface of the boss portion (21) and the countersunk groove (101).

6. The power supply box shaft structure according to claim 1, characterized in that: The middle part of the rotating arm (2) is hollow to form a wire passage cavity (20), comprising a rotating shaft portion (24) rotatably connected to the power supply box (1) and a hanging arm portion (25) detachably connected to the lower end of the rotating shaft portion (24), and the boss portion (21) is annularly protruding from the outer wall of the rotating shaft portion (24).

7. The power supply box shaft structure according to claim 1, characterized in that: Connecting seats (12) for detachably connecting to the corresponding two sides of the rotating seat (11) are arranged on both sides of the through hole (10) in the power box (1).

8. The power supply box shaft structure according to claim 1, characterized in that: A rotation limiting mechanism for limiting the rotation angle of the rotation arm (2) is provided between the rotation arm (2) and the power box (1), the rotation limiting mechanism comprising a rotation limiting portion (31) provided in the power box (1) and protruding in the direction of the through hole (10), and a rotation stopping portion (32) protruding on the outer wall of the boss portion (21) and capable of abutting against the rotation limiting portion (31).

9. The power supply box shaft structure according to claim 1, characterized in that: The upper ferrule (22) and the lower ferrule (23) are both made of plastic, and their contact surfaces with the boss portion (21) are smooth.

10. Spotlight, characterized in that: It comprises a lamp body and a power box shaft structure as claimed in any one of claims 1 to 9, wherein the lamp body is hung at the lower end of the rotating arm (2) and is electrically connected to the power box (1).

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