Lamp holder switching mechanism and lamp

Abstract

The utility model discloses a lamp holder switching mechanism and a lamp. The lamp holder switching mechanism comprises an installation body and a rotatable switching piece, wherein a rotating cavity is formed in the installation body, and the rotatable switching piece is arranged in the rotating cavity. A rotating guide structure capable of forming a rotating axis perpendicular to the length direction of the lamp pole is arranged between the rotating cavity and the adapter; a connecting part used for being connected with a lamp pole is arranged on the adapter, and an avoiding groove used for avoiding the connecting part when the mounting main body rotates around the rotating axis is formed in the mounting main body; according to the utility model, the area exposed outside the lamp holder main body can be reduced so as to reduce the contact with external dust or moisture, so that the use stability of the lamp holder switching mechanism and the overall attractive appearance of the lamp are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of lamp connection components, in particular to a lamp cap adapter mechanism and lamp. BACKGROUND

[0002] The existing lamp comprises a lamp holder, a lamp rod and a lamp cap main body, one end of the lamp rod is connected with the lamp holder, the other end of the lamp rod is connected with the lamp cap main body through an adapter mechanism, the adapter mechanism comprises a base and an adapter head rotatably connected with the base, during the adapter process, the base is installed on the outer surface of the lamp cap main body, the lamp rod connecting end of the adapter head is connected with the lamp rod, after the adapter process, the lamp cap main body can rotate relative to the lamp rod to adjust the illumination angle.

[0003] Since the base and the adapter head are exposed outside the lamp rod and the lamp cap main body, they are easy to contact with external dust or moisture, which causes rust or dust to make rotation inconvenient, reduces the use stability of the lamp cap adapter mechanism, and the bolt hole needs to be formed on the outer surface of the lamp cap main body, and the base is locked by locking the bolt into the bolt hole, which affects the overall appearance of the lamp cap main body after the lamp rod is adapted. SUMMARY

[0004] The utility model aims at providing a lamp cap adapter mechanism and lamp, which can reduce the area exposed outside the lamp cap main body to reduce the contact with external dust or moisture, thereby improving the use stability of the lamp cap adapter mechanism and the overall appearance of the lamp.

[0005] The utility model discloses the purpose through the following technical scheme:

[0006] A lamp cap adapter mechanism comprises an installation main body with a rotating cavity formed inside, and an adapter piece rotatable in the rotating cavity, a rotating guide structure perpendicular to the length direction of the lamp rod is arranged between the rotating cavity and the adapter piece, a connecting part for connecting the lamp rod is arranged on the adapter piece, and an avoiding slot for avoiding the connecting part when the installation main body rotates around the rotating axis is arranged on the installation main body.

[0007] On the basis of the above technical scheme, the utility model can be improved as follows:

[0008] Further, the installation main body comprises two abutting pieces abutting with each other, recesses for forming the rotating cavity when abutting are arranged on the abutting faces of the two abutting pieces, the rotating guide structure is arranged between the recess of at least one abutting piece and the adapter piece, and the avoiding slot is arranged on the non-abutting face of one of the abutting pieces.

[0009] Further, one of the abutments is a mounting seat, and the other is a limiting plate; the mounting seat and the limiting plate are provided with abutment surfaces on the inner sides for abutting together when abutting, and the recesses are arranged on the abutment surfaces; the mounting seat is provided with an outer side surface on the outer side for abutting on the inner wall surface of the lamp cylinder when assembling.

[0010] Further, the rotating guide structure comprises two guide grooves and two rotating shafts, the two guide grooves are arranged on the abutment surface of the mounting seat and located on the two sides of the recess, and the two rotating shafts are arranged on the opposite two sides of the adapter; the rotating shafts are rotatably fitted in the guide grooves and form the rotating axis.

[0011] Further, the avoiding groove is provided with a through hole on the groove bottom wall for the connecting part on the adapter to pass through the avoiding groove from the inside of the mounting seat to the outside, and the groove side walls at the opposite two ends of the avoiding groove are arranged to be inclined and form an included angle A.

[0012] Further, the included angle A ranges from 60° to 120°.

[0013] Further, the thickness of the limiting plate is smaller than that of the mounting seat, the limiting plate is provided with a circular notch on the outer side surface and communicated with the recess, and the ball head is partially exposed outside the limiting plate through the circular notch when the mounting seat and the limiting plate abut against each other.

[0014] Further, the adapter is a ball head, and a connecting pin is detachably arranged on the ball head, the connecting pin serves as the connecting part, and a cable channel is formed in the connecting pin.

[0015] Further, a damping cover is arranged on the outer surface of the ball head, and the damping cover covers the ball head and forms a damping fit with the ball head.

[0016] A lamp comprises a lamp holder, a lamp rod, a lamp head main body and the lamp head adapter mechanism, one end of the lamp rod is connected with the lamp holder, the other end of the lamp rod is connected with the lamp head main body through the lamp head adapter mechanism, the lamp head main body is internally provided with a connecting piece, and the lamp head adapter mechanism is arranged in the lamp head main body and fixed through the connecting piece.

[0017] Compared with the prior art, the lamp head adapter mechanism has the following advantages:

[0018] (1) The adapter is arranged in the mounting main body, so that the area exposed outside the lamp head main body can be obviously reduced, the contact between the adapter and external dust or moisture can be reduced, rust caused by moisture and inconvenience caused by dust can be avoided, and the use stability of the lamp head adapter mechanism can be improved.

[0019] (2) The utility model discloses a lamp head adapter mechanism, which is installed in the lamp head main body and does not need to set corresponding bolt holes on the lamp head main body, thereby improving the overall appearance of the lamp. BRIEF DESCRIPTION OF DRAWINGS

[0020] The utility model will be further described in detail below in combination with the drawings and specific embodiments

[0021] Figure 1 It is the assembly drawing of the lamp head adapter mechanism in example one.

[0022] Figure 2 It is the disassembly drawing of the lamp head adapter mechanism in example one.

[0023] Figure 3 It is the schematic view when the connecting pin is inserted into the ball head in example one.

[0024] Figure 4 It is the internal structure schematic view of the lamp head adapter mechanism in example one.

[0025] Figure 5 It is the lamp structure schematic view in example two.

[0026] The marks on the drawings: 1 - lamp barrel, 2 - lamp rod, 3 - mounting seat, 4 - limiting plate, 5 - first bolt hole, 6 - second bolt hole, 7 - avoiding slot, 8 - ball head, 9 - circular notch, 10 - connecting pin, 101 - limiting groove, 11 - hollow screw, 12 - cable channel, 13 - guide slot, 14 - rotating shaft, 15 - cover body, 16 - backing plate, 17 - avoiding port, 18 - lamp holder, 19 - bulb assembly, 20 - connecting sheet, 21 - steel ball. DETAILED DESCRIPTION

[0027] The specific embodiments of the utility model will be further described below in combination with the drawings, and the description of these embodiments is used to help understanding the utility model, but does not constitute the limitation of the utility model. In addition, the technical features involved in each embodiment of the utility model described below can be combined with each other as long as they do not conflict with each other.

[0028] Example one

[0029] Referring to Figures 1 to 4 , the embodiment relates to a lamp head adapter mechanism, which is used for adapting the lamp head main body on the lamp rod 2, and makes the lamp head main body can rotate relative to the rotating axis perpendicular to the length direction of the lamp rod 2, so as to adjust the illumination angle.

[0030] The lamp head adapter mechanism comprises a mounting body fixedly connected to the inside of the lamp head body, a rotating cavity is formed in the mounting body, and the adapter is rotatably accommodated in the rotating cavity; the adapter is provided with a connecting portion, the mounting body is provided with an avoiding slot 7, the connecting portion of the adapter can pass out of the outside of the mounting body to connect the lamp rod 2, and an avoiding space for avoiding the connecting portion is formed when the mounting body rotates, so that the mounting body can rotate relative to the adapter within a preset angle range.

[0031] The mounting body comprises two abutting members which abut against each other, the two abutting members are respectively provided with abutting surfaces which can be attached together when abutting, and the two abutting members are provided with grooves on the abutting surfaces; when the two abutting members abut against each other, the groove of one of the abutting members can be spliced with the groove of the other abutting member to form a rotating cavity, and the adapter is rotatably fitted in the rotating cavity; a rotating guide structure is arranged between the groove of at least one of the abutting members and the adapter, and the rotating guide structure is used to form a rotating axis perpendicular to the length direction of the lamp rod 2 when the adapter is rotatably fitted in the rotating cavity; the avoiding slot 7 is arranged on the non-abutting surface of one of the abutting members, and the connecting portion of the adapter passes out of the outside of the abutting member through the avoiding slot 7 to connect the lamp rod 2, so that the mounting body can rotate relative to the adapter around the rotating axis, and correspondingly, the lamp head body connected with the lamp head adapter mechanism can rotate relative to the lamp rod 2 within a preset angle range to realize the adjustment of the lighting angle.

[0032] In this embodiment, the lamp head body connected comprises a lamp cylinder 1 which forms an accommodating cavity inside, and the lamp cylinder 1 is provided with an opening on the outer wall which communicates with the accommodating cavity; when assembled, the lamp head adapter mechanism is mounted on the inner wall of the lamp cylinder 1, the avoiding slot 7 of the lamp head adapter mechanism is communicated with the opening of the lamp cylinder 1, and the lamp rod 2 is connected with the connecting portion of the adapter through the opening; since the adapter is built-in the mounting body, the area exposed outside the lamp head body can be obviously reduced, thereby reducing the contact between the adapter and the external dust or moisture, avoiding the rusting of the adapter caused by moisture or the inconvenience of rotation caused by dust, so as to improve the use stability of the lamp head adapter mechanism and improve the overall appearance after the lamp rod 2 is connected with the lamp head body.

[0033] Specifically, one of the abutting members in this embodiment is a rectangular mounting seat 3, and the other abutting member is a rectangular limiting plate 4; when the mounting seat 3 is mounted on the inner wall of the lamp cylinder 1, the outer side surface of the mounting seat 3 is attached to the inner wall surface of the lamp cylinder 1; the mounting seat 3 is provided with first bolt holes 5 at both ends in the height direction, so as to be locked and fixed in the inner wall of the lamp cylinder 1 from the inside of the lamp cylinder 1, and the bolt is prevented from being exposed outside the lamp cylinder 1.

[0034] The lamp cylinder 1 connected in the embodiment is a hollow cylindrical structure, and the lamp cylinder 1 has an annular side wall. In the embodiment, the outer side of the mounting seat 3 is an outwardly protruding arc-shaped surface, so as to be attached to the inner wall of the lamp cylinder 1 during installation. It should be noted that, according to different lamp cylinders 1, a mounting seat 3 with a corresponding shape of the outer side can also be used to replace the mounting seat 3, so as to ensure that the outer side of the mounting seat 3 can be fully attached to the inner wall of the lamp cylinder 1, thereby improving the installation stability.

[0035] When the mounting seat 3 and the limiting plate 4 are butted, the inner sides of the mounting seat 3 and the limiting plate 4 are attached together. At this time, the inner sides are butt surfaces, and the mounting seat 3 and the limiting plate 4 are provided with grooves on the butt surfaces. After the mounting seat 3 and the limiting plate 4 are butted, the groove on the mounting seat 3 and the groove on the limiting plate 4 can be spliced to form a rotating cavity for accommodating the adapter. The mounting seat 3 and the limiting plate 4 are provided with second bolt holes 6 whose axis is parallel to the thickness direction of the mounting seat 3 and the limiting plate 4, so as to be locked by bolts after being butted.

[0036] In the embodiment, the avoiding groove 7 is provided on the outer side of the mounting seat 3. The avoiding groove 7 is an elongated groove structure, and the length direction of the avoiding groove 7 is parallel to the height direction of the mounting seat 3. The avoiding groove 7 has a groove side wall and a groove bottom wall opposite to the groove opening. The avoiding groove 7 is provided with a through hole on the groove bottom wall, which communicates with the groove on the mounting seat 3. The through hole is used to allow the connecting part on the adapter to pass through the avoiding groove 7 from the inside to the outside of the mounting seat 3. The cross section of the avoiding groove 7 is trumpet-shaped, that is, the groove side walls at both ends of the length direction of the avoiding groove 7 are inclined and form an included angle A. When the mounting seat 3 rotates relative to the adapter, the connecting part is avoided, and the lamp head body can rotate relative to the lamp rod 2 around the rotation axis to complete the illumination angle adjustment.

[0037] The included angle A formed by the groove side walls at both ends of the length direction of the avoiding groove 7 corresponds to the adjustable range of the illumination angle. The greater the included angle A, the greater the adjustable range of the illumination angle. Conversely, the smaller the included angle A, the smaller the adjustable range of the illumination angle. Preferably, the included angle A in the embodiment ranges from 60° to 120°. In the embodiment, the included angle A is 90°, that is, the rotated lamp cylinder 1 can rotate relative to the lamp rod 2 around the rotation axis within 0°-90°. When the lamp cylinder 1 rotates by 0°, the lamp rod 2 abuts against the groove side wall at one end of the length direction of the avoiding groove 7, that is, it is in the least adjustment position. When the lamp cylinder 1 rotates by 45°, the lamp rod 2 is perpendicular to the axis of the lamp cylinder 1, that is, it is in the intermediate adjustment position. When the lamp cylinder 1 rotates by 90°, the lamp rod 2 abuts against the groove side wall at the other end of the length direction of the avoiding groove 7, that is, it is in the maximum adjustment position.

[0038] The adapter in this embodiment is a ball head 8, and the recesses on the mounting seat 3 and the limiting plate 4 are arc-shaped grooves corresponding to the ball head 8. After the mounting seat 3 and the limiting plate 4 are butted against each other, a spherical rotating chamber is formed inside, and the ball head 8 is rotatably accommodated in the spherical rotating chamber. In this embodiment, the thickness of the limiting plate 4 is less than that of the mounting seat 3. The limiting plate 4 is provided with a circular notch 9 communicating with the recess on the outer side. When the mounting seat 3 and the limiting plate 4 are butted against each other, the ball head 8 can be partially exposed outside the limiting plate 4 through the circular notch 9, so as to reduce the overall thickness of the mounting body, correspondingly reduce the occupied internal space of the lamp cylinder 1, effectively reduce the volume of the lamp cylinder 1, and adapt to the use requirements of narrow lighting space.

[0039] The ball head 8 is provided with a connecting pin 10. The connecting pin 10 is used as a connecting part and is connected to the outside of the mounting seat 3 through a through hole on the groove bottom of the avoiding groove 7.

[0040] The connecting pin 10 is a hollow cylindrical pin body. An axial one end of the connecting pin 10 is a plug-in end, and an axial other end of the connecting pin 10 is a connecting end. A plug-in hole is formed on one side of the ball head 8 in the radial direction, and a locking hole communicating with the plug-in hole is formed on the other side of the ball head 8 in the radial direction. The plug-in end of the connecting pin 10 is plugged into the plug-in hole of the ball head 8, and a hollow screw 11 is plugged through the locking hole to threadedly connect the plug-in end of the connecting pin 10 to complete fastening. After fastening, the connecting pin 10 and the hollow screw 11 are coaxially arranged. An outer thread is arranged on the outer surface of the connecting end of the connecting pin 10. A connecting hole is arranged on the connecting end of the lamp rod 2, and an inner thread is arranged on the inner wall surface of the connecting hole. The connecting end of the connecting pin 10 is threadedly connected into the connecting hole of the connecting end of the lamp rod 2. The connecting pin 10 and the hollow screw 11 are internally formed with a cable channel 12 communicating with each other. The cable arranged inside the lamp rod 2 can enter the lamp cylinder 1 to connect the bulb assembly 19 through the cable channel 12, so as to avoid the cable exposed outside the lamp cylinder 1 from being in long-time contact with air or moisture to cause aging, fracture or short circuit. At the same time, the cable can be hidden inside the adapter mechanism, and the overall appearance of the lamp head body after connecting the lamp rod 2 can be improved.

[0041] The ball head 8 is provided with a spherical clamping groove at the plug-in hole. A steel ball 21 is rotatably accommodated in the spherical clamping groove. The connecting pin 10 is provided with a limiting groove 101 on the peripheral wall. When the connecting pin 10 is plugged into the plug-in hole of the ball head 8, the steel ball 21 can be matched with the limiting groove 101 of the connecting pin 10, so as to axially limit the connecting pin 10. The limiting groove 101 extends circumferentially on the peripheral wall of the connecting pin 10. The axial rotation of the connecting pin relative to the ball head 8 can drive the steel ball to roll along the limiting groove 101. The starting end and the end of the limiting groove 101 are not communicated, so as to limit the angle of rotation of the connecting pin 10 relative to the ball head 8. In this embodiment, the angle range of the rotation of the connecting pin 10 is 0°-340°.

[0042] The rotating guide structure in the embodiment comprises two guide grooves 13 and two rotating shafts 14. The two guide grooves 13 are arranged on the abutting surface of the mounting base 3 and located at both sides of the groove. The two rotating shafts 14 are arranged on the outer surface of the ball head 8 and located at both sides of the radial direction of the ball head 8. When the ball head 8 is accommodated in the rotating cavity, the rotating shaft 14 on the ball head 8 can be rotatably matched in the guide groove 13 and form a rotating axis perpendicular to the length direction of the lamp rod 2, so that the mounting body can rotate around the rotating axis relative to the ball head 8.

[0043] A damping cover is arranged on the outer surface of the ball head 8, which covers the ball head 8 and forms a damping fit with the ball head 8. Specifically, the damping cover is made of transparent elastic nylon material and comprises a hemispherical cover body 15 and a ring-shaped pad plate 16 which are abutted to each other. After being abutted to each other, the cover body 15 and the pad plate 16 form a protective layer to avoid direct contact between the ball head 8 and the rotating cavity and generate wear, thereby prolonging the service life. An avoiding opening 17 is arranged on the cover body 15 to facilitate detachable installation of the connecting pin 10 on the ball head 8. The inner ring hole of the pad plate 16 can expose the side of the ball head 8 away from the connecting pin 10 to the outside of the pad plate 16. When the cover body 15 and the pad plate 16 are abutted to each other, the cover body 15 and the pad plate 16 abut against the outer surface of the ball head 8 to form a damping force to maintain the fixed mounting body after rotation.

[0044] Embodiment two

[0045] Referring to Figure 4 and Figure 5 , the embodiment relates to a lamp, which comprises a lamp holder 18, a lamp rod 2, a lamp head body and the lamp head adapter mechanism in the embodiment one. One end of the lamp rod 2 is connected with the lamp holder 18, and the other end of the lamp rod 2 is connected with the lamp head body through the lamp head adapter mechanism. Since the lamp head adapter mechanism is arranged in the lamp head body and the cable is hidden in the lamp holder 18, the lamp rod 2 and the lamp head body, the lamp head adapter mechanism and the cable can be prevented from being eroded by external moisture and air, and the overall appearance of the lamp is improved.

[0046] The lamp structure in the embodiment is suitable for table lamps, floor lamps, wall lamps or ceiling lamps.

[0047] The lamp head body is a hollow cylindrical structure of a lamp cylinder 1, which has a ring-shaped side wall and a top cover and internally forms an accommodating cavity for accommodating a bulb assembly 19. The lamp cylinder 1 is provided with an opening on the outer side wall, which communicates with the accommodating cavity. The inner side wall of the lamp cylinder 1 is provided with two connecting pieces 20 which are arranged in an opposite manner at the opening of the lamp cylinder 1.

[0048] When assembled, the lamp cap adapter is mounted on the inner side wall of the lamp cylinder 1, the avoiding groove 7 on the lamp cap adapter is communicated with the opening on the lamp cylinder 1, the two connecting pieces 20 are respectively abutted with the two ends of the mounting seat 3 in the height direction, and are respectively locked into the bolts of the two first bolt holes 5 to complete the locking; since the lamp cap adapter is internally mounted and locked, corresponding bolt holes do not need to be arranged on the annular side wall of the lamp cylinder 1, and the overall appearance of the lamp can be improved.

[0049] The above embodiments of the utility model are not the limitation of the protection scope of the utility model, and the implementation mode of the utility model is not limited to this, and any other various forms of modification, replacement or change of the above structure of the utility model according to the above content of the utility model, the ordinary technical knowledge and the usual means in the art, without departing from the above basic technical thought of the utility model, should fall within the protection scope of the utility model.

Claims

1. A lamp cap adapter mechanism, characterized by, The mounting body comprises a rotating cavity formed inside, and a rotating adapter arranged in the rotating cavity and rotatable; a rotating guide structure is arranged between the rotating cavity and the rotating adapter to form a rotating axis perpendicular to the length direction of the lamp pole; a connecting part for connecting the lamp pole is arranged on the rotating adapter, and an avoiding slot for avoiding the connecting part when the mounting body rotates around the rotating axis is arranged on the mounting body.

2. The lamp cap adapter of claim 1, wherein The mounting body comprises two abutting pieces abutting with each other, and the two abutting pieces are provided with a groove on the abutting surface to form the rotating cavity when abutting; the rotating guide structure is arranged between the groove on at least one abutting piece and the rotating adapter; and the avoiding slot is arranged on the non-abutting surface of one of the abutting pieces.

3. The lamp cap adapter of claim 2, wherein: One of the abutting pieces is a mounting seat, and the other is a limiting plate; the mounting seat and the limiting plate are provided with an abutting surface on the inner side for abutting together when abutting; and the groove is arranged on the abutting surface; and the mounting seat is provided with an outer side surface on the outer side for abutting on the inner wall surface of the lamp cylinder when assembling.

4. The lamp cap adapter of claim 3, wherein The rotating guide structure comprises two guide grooves and two rotating shafts; the two guide grooves are arranged on the abutting surface of the mounting seat and located on both sides of the groove; and the two rotating shafts are arranged on opposite sides of the rotating adapter; the rotating shafts are rotatably fitted in the guide grooves and form the rotating axis.

5. The lamp cap adapter of claim 3, wherein, The avoiding slot is provided with a through hole on the groove bottom wall for the connecting part on the rotating adapter to pass through the avoiding slot from the inside of the mounting seat to the outside; and the groove side walls at opposite ends of the avoiding slot are arranged obliquely and form an included angle A.

6. The lamp cap adapter of claim 5, wherein, The included angle A ranges from 60° to 120°.

7. The lamp cap adapter of claim 6, wherein, The thickness of the limiting plate is less than that of the mounting seat; the limiting plate is provided with a circular notch on the outer side surface and communicating with the groove; and the ball head is partially exposed outside the limiting plate through the circular notch when the mounting seat and the limiting plate abut with each other.

8. The lamp cap adapter of claim 7, wherein, The rotating adapter is a ball head, and a connecting pin is detachably arranged on the ball head; the connecting pin serves as the connecting part, and a cable passage is formed inside the connecting pin.

9. The lamp cap adapter of claim 8, wherein, A damping cover is arranged on the outer surface of the ball head, and the damping cover covers the ball head and forms a damping fit with the ball head.

10. A luminaire characterized by, The lamp head adapter mechanism comprises a lamp holder, a lamp pole, a lamp head body, and the lamp head adapter mechanism of any one of claims 1-9; one end of the lamp pole is connected to the lamp holder, and the other end of the lamp pole is connected to the lamp head body through the lamp head adapter mechanism; a connecting piece is arranged inside the lamp head body, and the lamp head adapter mechanism is arranged inside the lamp head body and fixed through the connecting piece.

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