WO2023116492A1

WO2023116492A1 - Lamp holder capable of adjusting glare rating of down lamp

Info

Publication number: WO2023116492A1
Application number: PCT/CN2022/138510
Authority: WO
Inventors: 邓伟; 罗福; 姜卫民
Original assignee: 苏州瑞腾照明科技股份有限公司
Priority date: 2021-12-21
Filing date: 2022-12-13
Publication date: 2023-06-29
Also published as: CN114321845A; CN114321845B

Abstract

The present application relates to the field of indoor illumination, and particularly to a lamp holder capable of adjusting the glare rating of a down lamp. The lamp holder comprises a bottom plate, a protective shell for holding the down lamp, and a transmission device for transferring a motion of the bottom plate to the down lamp, wherein the down lamp is slidably connected in the protective shell; the bottom plate is rotatably connected to one end of the protective shell; and when the bottom plate rotates, the transmission device drives the down lamp to move in the protective shell along the axis of the bottom plate so as to adjust the height of the down lamp. According to the present application, the effect of adjusting the glare rating of the lamp can be achieved when an indoor height is fixed.

Description

A lamp base with adjustable glare value of downlight

technical field

The present application relates to the field of indoor lighting, in particular to a lamp holder capable of adjusting the glare value of a downlight.

Background technique

Glare refers to the visual condition that causes visual discomfort and reduces the visibility of objects due to unsuitable brightness distribution or extreme brightness contrast in space/time in the field of vision. The perception of light in the visual field that the human eye cannot adapt to may cause disgust, discomfort or even loss of vision. Therefore, glare is one of the important causes of visual fatigue.

Unified Glare Rating UGR (Unified Glare Rating) is a psychological parameter that measures the subjective reaction of the uncomfortable feeling caused by the light emitted by the lighting device in the indoor visual environment. Its value can be calculated by the CIE unified glare rating formula according to the specified calculation conditions .

In order to reduce the generation of glare, reduce the glare value of lamps and lanterns, and reduce the discomfort caused by light to people. When installing lamps, the installation height of the light source will be increased to achieve the purpose of reducing glare. However, when the indoor height is fixed, how to realize the adjustment of the glare value of the light source is a problem to be solved at present.

Contents of the invention

In order to realize the adjustment of the glare value of the lamp when the indoor height is fixed, the application provides a lamp holder capable of adjusting the glare value of the downlight.

A lamp holder that can adjust the glare value of a downlight provided by this application adopts the following technical scheme:

A lamp holder with adjustable glare value of a downlight, comprising a bottom plate, a protective case for placing the downlight, and a transmission device for transmitting the movement of the bottom plate to the downlight, and the downlight is slidably connected in the protective case , the bottom plate is rotatably connected to one end of the protective shell, and when the bottom plate rotates, the transmission device drives the downlight to move along the axis of the bottom plate in the protective shell.

By adopting the above technical solution, when in use, the downlight can be directly placed in the protective case, and the downlight can be supported by the bottom plate, and the connection between the bottom plate and the downlight can be realized through the transmission device. During installation, the protective shell can be directly connected with the external building. When the glare value of the downlight needs to be adjusted, the bottom plate can be rotated directly, and the bottom plate will drive the downlight to move vertically in the protective shell through the transmission device, so as to realize the height adjustment of the downlight. The adjustment, so as to realize the adjustment of the glare value of the downlight. Therefore, when the indoor height is fixed, the glare value of the downlight can also be adjusted by adjusting the position inside the protective shell of the downlight, and the adjustment is more convenient and flexible.

Optionally, a first limiting ring for supporting the downlight is slidably connected in the protective case, the first limiting ring is located between the downlight and the transmission device, and the side wall of the first limiting ring A first limiting block is fixedly connected, and a first chute for sliding the first limiting block is opened on the protective case.

By adopting the above-mentioned technical solution, through the cooperation of the first limit block and the first chute, the sliding track of the downlight in the protective shell can be fixed, so that the downlight can slide more smoothly in the protective shell, and will not slide along with the bottom plate. Turning can cause entanglement damage to the wires that install the downlights.

Optionally, the transmission device includes a first support ring placed on the lower side of the downlight and support teeth fixed on the bottom plate, the end of the first support ring away from the downlight is provided with a plurality of adjustment teeth, A plurality of the adjusting teeth form a group, and in the same group of adjusting teeth, the distance between the adjusting teeth and the downlight gradually increases from one side to the other, and the supporting teeth abut against the adjusting teeth, When the bottom plate rotates, the supporting teeth abut against each regulating tooth in turn.

By adopting the above technical solution, through the abutment of the supporting teeth and the adjusting teeth, the support of the downlight through the supporting teeth can be realized. When the bottom plate is rotated, the supporting teeth will abut against different adjusting teeth in turn, and because the distance between each adjusting tooth and the downlight is different, the adjustment of the height of the downlight is realized.

Optionally, there are at least two sets of adjusting teeth and at least two supporting teeth, each set of adjusting teeth corresponds to each supporting tooth, and two adjacent sets of adjusting teeth are connected end to end.

By adopting the above technical solution, the opposite sides of the downlight can be supported by at least two supporting teeth, and the support is more stable, and at least two sets of adjusting teeth are set so that when the supporting teeth slide out from the tail end of one set of adjusting teeth , can directly slide to another set of adjusting teeth, making the adjustment more convenient and flexible.

Optionally, the adjusting teeth are in the shape of a right triangle, one side of the supporting teeth is arc-shaped, and the other side is provided with an anti-retreat groove, when the supporting teeth abut against the adjusting teeth, the The anti-retreat groove abuts against the right-angled side of the regulating tooth.

By adopting the above-mentioned technical scheme, the setting of the anti-retreat groove makes the anti-retreat groove abut against the right-angled side of the adjusting tooth under normal conditions, so as to fix the relative position of the bottom plate and the downlight, and avoid the relative position of the adjusting tooth under the gravity of the downlight. Relative sliding occurs on the supporting teeth.

Optionally, a second limiting ring is fixedly connected to the protective shell, the second limiting ring is sleeved on the first supporting ring, and a second limiting block is fixedly connected to the adjusting teeth, A second sliding slot for the second limiting block to slide is opened on the second limiting ring.

By adopting the above technical solution, the setting of the second limit block and the second chute can ensure that the adjustment tooth can only slide up and down with the rotation of the support tooth, and will not rotate together with the support tooth.

Optionally, the transmission device further includes an abutment ring affixed to the inner wall of the first support ring, a snap ring is affixed to one end of the first limiting ring facing the transmission device, and the first A fastening groove for the fastening ring to be inserted is formed between the support ring and the abutment ring.

By adopting the above-mentioned technical solution, the relative position between the first limiting ring and the transmission device is established through the cooperation of the snap ring and the snap slot, and the abutment ring is set in a circular truncated shape, so that the light of the downlight can be diffused. function, further reducing the generation of glare.

Optionally, the transmission device includes a second support ring, a connecting ring fixed on the bottom plate or the protective shell, and a guide ring fixed on the protective shell or the bottom plate, the second A third limiting block is fixedly connected to the supporting ring, and a third chute for the third limiting block to slide is opened on the connecting ring, and the length direction of the third chute is consistent with the axial direction of the connecting ring. A guide groove for inserting the end of the third limiting block is opened on the guide ring, and the guide groove is in a spiral shape.

By adopting the above-mentioned technical solution, under normal conditions, the third limiting block is installed in the third chute and abuts against the guide groove; when the connecting ring is fixedly connected to the bottom plate, the connecting ring also It will rotate synchronously with the bottom plate, and drive the third limit block to rotate through the third chute. And the third stopper will also slide along the helical direction of the guide groove in the guide groove when the third stopper rotates, to drive the second support ring to move along the axis direction of the second support ring through the third stopper, and the second support ring also passes through the first stopper. A limit ring drives the vertical movement of the downlight to realize the adjustment of the height of the downlight.

Optionally, the inner hole of the second support ring is tapered, and the diameter of the inner hole of the second support ring gradually increases from an end close to the first limiting ring to an end far away from the first limiting ring.

By adopting the above technical solution, the light source emitted by the downlight can be diffused to further reduce the generation of glare.

Optionally, the end of the protective shell away from the bottom plate is closed and arranged, and a return spring is placed inside the protective shell, and the two ends of the return spring are in contact with the closed end of the protective shell and the downlight respectively.

By adopting the above technical scheme, the setting of the return spring can make the downlight firmly clamped between the return spring and the transmission device. When the transmission device drives the downlight to move towards the return spring, the return spring will be compressed; when the transmission When the device drives the downlight to move away from the return spring, under the action of the return spring, the downlight will also move stably with the transmission device, making the installation of the downlight more stable.

In summary, the present application includes at least one of the following beneficial technical effects:

1. The setting of the lamp holder can act as a fixed support for the downlight, and the setting of the transmission device can transmit the movement of the bottom plate to the downlight, so that the staff can drive the downlight along the axis of the bottom plate by rotating the bottom plate Move in the direction to realize the adjustment of the height of the downlight; so that when the height of the indoor building is fixed, by rotating the bottom plate, the position of the downlight in the protective shell can be adjusted to reduce the glare value of the downlight;

2. The settings of the supporting teeth and the adjusting teeth make it possible that when the bottom plate is turned, the bottom plate will drive the supporting teeth to cooperate with different adjusting teeth in turn, and because the distance between each adjusting tooth of the same group and the downlight is inconsistent, it will drive the first The support ring moves back and forth in the protective shell to adjust the height of the downlight;

3. The anti-retreat groove is set so that the adjusting tooth abuts against the supporting tooth under the elastic action of the return spring, and the right-angled side of the adjusting tooth abuts against the anti-retreat groove to prevent relative sliding between the adjusting tooth and the supporting tooth; When the height of the downlight needs to be adjusted, the base plate is rotated, and the arc surface of the supporting teeth will pass over the adjusting teeth along the slope of the adjusting teeth, so that the supporting teeth can cooperate with different adjusting teeth.

Description of drawings

Figure 1 is a schematic diagram of the overall structure of the present application.

Fig. 2 is a partially cut-away schematic diagram in order to reflect the structure of the transmission device.

Fig. 3 is a front half-sectional schematic diagram of the whole of Embodiment 1 of the present application.

Fig. 4 is a front half-sectional schematic diagram of the whole of Embodiment 2 of the present application.

Fig. 5 is a schematic diagram for showing the structure of the transmission device in the second embodiment.

Explanation of reference numerals: 1, protective shell; 11, first limiting ring; 111, first limiting block; 12, first chute; 13, return spring; 14, second limiting ring; 141, second chute; 142, the first mounting ear; 15, snap ring; 2, bottom plate; 3, transmission device; 31, support tooth; 311, anti-retreat groove; 312, transition angle; 32, first support ring; 33, Adjusting tooth; 331, second limit block; 34, abutment ring; 35, second support ring; 351, third limit block; 352, second mounting ear; 353, limit groove; 36, connecting ring; 361, the third chute; 37, the guide ring; 371, the guide groove; 38, the clamping groove; 4, the downlight; 5, the fixing device; 51, the mounting plate; 52, the torsion spring; 53, the handle.

Detailed ways

The present application will be described in further detail below in conjunction with accompanying drawings 1-5.

The embodiment of the present application discloses a lamp holder capable of adjusting the glare value of a downlight.

Example 1

Referring to Fig. 1 and Fig. 2, the lamp holder for adjusting the glare value of the downlight includes a vertically placed protective case 1 for placing the downlight 4, a bottom plate 2 for supporting the downlight 4, and a bottom plate 2 and a barrel. Transmission 3 between lamps 4.

The protective shell 1 is cylindrical for connecting with external buildings, and the downlight 4 can be placed in the protective shell 1 and slidably matched with the protective shell 1 . The bottom plate 2 is in the shape of a ring as a whole, the inner hole of which is used for the light source of the downlight 4 to pass through, and the bottom plate 2 is rotatably connected with the protective shell 1 . The transmission device 3 is used to transmit the rotational movement of the bottom plate 2 to the downlight 4 to drive the downlight 4 to move along the axis of the protective case 1 . When in use, the downlight 4 can be directly placed in the protective case 1, the transmission device 3 is placed in the protective case 1 and located at one end close to the light source of the downlight 4, and the bottom plate 2 is connected to the downlight 4; finally, the The protective shell 1 can be installed on the indoor building. When the glare value of the downlight 4 needs to be adjusted, the bottom plate 2 is directly operated to rotate, and the transmission device 3 will drive the downlight 4 to move along the axis direction of the protective case 1 in the protective case 1 to realize adjustment of the height of the downlight 4 . When the height of the indoor building is fixed, the adjustment of the glare value of the downlight 4 can also be realized by adjusting the downlight 4 to slide in the protective shell 1.

1 and 2, a first limit ring 11 is slidably connected in the protective case 1, the first limit ring 11 is located between the downlight 4 and the transmission device 3, and the upper end of the first limit ring 11 is in contact with the tube The lower end of the lamp 4 is connected, the lower end of the first spacer ring 11 is connected with the upper end of the first support ring 32, and the first spacer block 111 is fixedly connected to the side wall of the first spacer ring 11. The first spacer block 111 There may be one or multiple sets at intervals around the axis of the first limiting ring 11 , and this application takes two symmetrically arranged first limiting blocks 111 as an example for illustration. At the same time, a first sliding slot 12 for the first limiting block 111 to slide is opened on the protective shell 1 along its axial direction. When the bottom plate 2 is rotated, the transmission device 3 will drive the downlight 4 to move along the axis direction of the protective shell 1 through the first limiting ring 11, and the cooperation between the first limiting block 111 and the first chute 12 can fix the first limiting The circumferential position of the spacer ring 11 ensures that the first spacer ring 11 will not rotate together with the bottom plate 2 .

Referring to Fig. 2, the transmission device 3 includes a support tooth 31 affixed to the bottom plate 2 and a first support ring 32 placed between the support tooth 31 and the first limit ring 11, the support tooth 31 can be provided with one or can surround The axes of the bottom plate 2 are arranged at intervals, and the present application takes four supporting teeth 31 at equal intervals as an example for illustration. One end of the first support ring 32 towards the support teeth 31 is processed to form a plurality of adjustment teeth 33, a plurality of adjacent adjustment teeth 33 form a group, and four groups of adjustment teeth 33 are also provided; one support tooth 31 corresponds to a group of adjustment teeth 33 It is provided that the support teeth 31 can provide support for the adjustment teeth 33 . Among the plurality of adjusting teeth 33 in the same group, from one side to the other, that is, along the head end to the tail end of a group of adjusting teeth 33, the distance between each adjusting tooth 33 and the first limit ring 11 Gradually increasing, that is, a plurality of adjusting teeth 33 in the same group are arranged obliquely downward from one side to the other side. In the initial state, the supporting tooth 31 abuts against one of the adjusting teeth 33, thereby providing support for the first supporting ring 32, and the first supporting ring 32 supports the position of the downlight 4 through the first limiting ring 11; 2, the supporting teeth 31 will abut against each adjusting tooth 33 in turn, and since the distance between each adjusting tooth 33 of the same group and the downlight 4 is inconsistent, the distance between the supporting teeth 31 and the downlight 4 will be changed, The adjustment of the height of the downlight 4 is realized.

Wherein, two adjacent sets of adjusting teeth 33 are arranged end-to-end. When the supporting teeth 31 slide out from the tail end of one set of adjusting teeth 33, they can directly abut against the head end of another set of adjusting teeth 33, making the adjustment smoother.

Referring to FIG. 2 , in order to avoid the relative sliding between the adjusting teeth 33 and the supporting teeth 31 under the action of an external force when the supporting teeth 31 abut against the adjusting teeth 33 , the height of the downlight 4 changes. The shape of the adjustment tooth 33 can be set as a right triangle shape, and the plane corresponding to the right angle side of one adjustment tooth 33 is set in a direction away from the other adjustment teeth 33 that are closer to the downlight 4, that is, the plane corresponding to the right angle side of the adjustment tooth 33 Towards the tail end of a set of adjusting teeth 33 . At the same time, an anti-retreat groove 311 is formed at the end of the supporting tooth 31 abutting against the adjusting tooth 33 and on the side close to the head end of a group of adjusting teeth 33 . When the support tooth 31 abuts against the adjustment tooth 33, the anti-retreat groove 311 abuts against the right-angle side of the adjustment tooth 33, that is, the right angle of the adjustment tooth 33 is inserted into the anti-retreat groove 311 of the adjustment tooth 33, so that the support tooth 31 can only be single to turn. Therefore, the rotation direction of the bottom plate 2 is the direction from the head end to the tail end of a set of adjusting teeth 33 .

When the rotating bottom plate 2 drives the support tooth 31 to rotate, the side of the support tooth 31 away from the anti-retreat groove 311 will abut against the hypotenuse of the adjustment tooth 33, and slide along the hypotenuse of the adjustment tooth 33, thereby sliding to the adjacent two sides. Between the adjustment teeth 33. When the supporting tooth 31 is located between two adjacent regulating teeth 33 , the anti-retreat groove 311 of the supporting tooth 31 will abut against the right-angled side of the regulating tooth 33 , thereby fixing the relative positions of the supporting tooth 31 and the regulating tooth 33 . And because the right-angle side of the adjusting tooth 33 is located in the direction away from other adjusting teeth 33 closer to the downlight 4, so under the action of gravity of the downlight 4, the adjusting tooth 33 will abut against the supporting tooth 31 more closely.

In order to facilitate the rotation of the bottom plate 2, to ensure that the support teeth 31 can slide smoothly between the adjustment teeth 33, an arc-shaped transition angle 312 is processed at the end of the support teeth 31 towards the adjustment teeth 33, and the transition angle 312 is located at the support teeth 31. The side away from the anti-retreat groove 311. When the bottom plate 2 is rotated, the transition angle 312 on the support tooth 31 will directly abut against the slope of the adjustment tooth 33 .

As shown in Figure 2, the adjustment teeth 33 of the same group decrease in height from right to left, and the left side of each adjustment tooth 33 is a right angle side; the left side of the support tooth 31 is a transition angle 312, and the right side is an anti-retreat groove 311 . Therefore, when the base plate 2 is rotated, the base plate 2 can only rotate counterclockwise, thereby driving the supporting teeth 31 to slide leftward. During the sliding process of the supporting teeth 31 , the downlight 4 will be gradually pushed upwards, so as to adjust the height of the downlight 4 . After the adjustment is completed, due to the gravity of the downlight 4, the supporting tooth 31 will not rotate counterclockwise under the action of an external force; Rotate clockwise under the action of external force, thereby fixing the relative positions of the supporting tooth 31 and the adjusting tooth 33, and the locking is more firm. When the height of the downlight 4 needs to be adjusted again, the bottom plate 2 can be continued to be rotated manually, and the height of the downlight 4 can be adjusted by overcoming the gravity of the downlight 4;

Wherein, in order to prevent the support teeth 31 from rotating relative to the adjustment teeth 33 against the gravity of the downlight 4 under the action of an external force, a return spring 13 is placed inside the protective case 1 . Specifically, one end of the protective shell 1 away from the bottom plate 2 is closed and arranged, one end of the return spring 13 abuts against the closed end of the protective shell 1 , and the other end abuts against the upper end of the downlight 4 . Under the action of the elastic force of the return spring 13, the right-angled side that can abut the adjustment tooth 33 always abuts against the side of the anti-retreat groove 311 on the support tooth 31, that is, the right angle of the adjustment tooth 33 is always located in the anti-retreat groove 311, thereby fixing the adjustment The relative position between the tooth 33 and the support tooth 31. The possibility of changing the installation height of the downlight 4 due to external force is greatly reduced.

Referring to Figures 2 and 3, a second limiting ring 14 is fixedly connected in the protective case 1, and the second limiting ring 14 is sleeved on the outer periphery of the first support ring 32, and at the same time one or more of the adjusting teeth 33 The second limiting block 331 extending radially along the first supporting ring 32 is fixedly connected. This application takes four second limiting blocks 331 as an example for illustration, and the four second limiting blocks 331 surround the first supporting ring. 32 are arranged at equal intervals; on the second limiting ring 14 there is a second slide groove 141 extending along the axial direction of the second limiting ring 14 . When the base plate 2 is rotated, the base plate 2 will drive the supporting teeth 31 to slide on each adjusting tooth 33, and the cooperation of the second stop ring 14 and the second chute 141 can fix the circumferential position of the first support ring 32, Avoid synchronous rotation of the adjusting tooth 33 with the supporting tooth 31 .

Referring to Fig. 3, the first mounting ear 142 is fixedly connected to the second limiting ring 14, and the second mounting ear 352 is located between the second limiting ring 14 and the protective shell 1, and the protective shell 1 and the protective shell 1 can be realized by bolts. The connection of the second mounting ear 352 is to realize the fast connection between the second limiting ring 14 and the protective shell 1 .

At the same time, in order to fix the relative position of the first support ring 32 and the first limit ring 11, a snap ring 15 is affixed to the end of the first limit ring 11 facing the transmission device 3; at the inner wall of the first support ring 32 An abutment ring 34 is integrally fixed, and the abutment ring 34 is in the shape of a circular platform as a whole. A snap-in slot 38 for inserting the snap-in ring 15 is formed between the abutment ring 34 and the first support ring 32, and the snap-in slot 38 is located at the first support ring 32. A supporting ring 32 and an abutting ring 34 face one end of the first limiting ring 11 . The relative position of the first support ring 32 and the first limiting ring 11 can be fixed through the cooperation of the snap ring 15 and the snap slot 38 . At the same time, a plurality of stepped steps are processed in the inner hole of the abutment ring 34 , which can diffuse the light source of the downlight 4 and further reduce the glare value of the downlight 4 .

Referring to Fig. 1, in order to facilitate the installation of the protective case 1 on the indoor building, the outer wall of the protective case 1 is provided with a fixing device 5, and there are two fixing devices 5, and the two fixing devices 5 are respectively arranged on two opposite sides of the protective case 1. side.

The fixing device 5 includes a mounting plate 51 affixed to the outer wall of the protective case 1 and a torsion spring 52 clamped in the mounting plate 51. One end of the torsion spring 52 abuts against the inner wall of the mounting plate 51, and the other end of the torsion spring 52 is connected from the mounting plate 51 protrudes from the outer wall and is fixedly connected with a handle 53 . Under normal conditions, under the elastic force of the torsion spring 52, the handle 53 can always abut against the side wall of the bottom plate 2. When installing, directly insert the upper end of the protective case 1 into the installation hole on the building structure, and pull the handle 53 upward to place the handle 53 In the building structure, under the elastic force of the torsion spring 52, the torsion spring 52 abuts against the building structure and exerts an upward force on the protective shell 1, and since the bottom plate 2 is located outside the building structure, the building structure is clamped on the bottom plate 2 And between the torsion spring 52, the installation of the downlight 4 is completed. This is the installation method of the existing downlight 4, and will not be described in detail here.

The implementation principle of Embodiment 1 of the present application is: when in use, the protective case 1 can be directly installed on the building structure through the fixing device 5 to realize the installation of the downlight 4 . When the glare value of the downlight 4 needs to be adjusted, the base plate 2 is directly rotated, and the base plate 2 can only rotate in one direction due to the setting of the anti-retreat groove 311 on the supporting teeth 31 and the right triangle of the adjusting teeth 33 . When the base plate 2 is rotated, the base plate 2 also drives the supporting teeth 31 to rotate relative to the adjusting teeth 33, and the transition angle 312 of the supporting teeth 31 will contact with the hypotenuse of each adjusting tooth 33 in order to realize the adjustment of the height of the downlight 4 .

Example 2

The difference between this embodiment and Embodiment 1 lies in the difference of the transmission device 3 . Referring to FIG. 4 and FIG. 5 , the transmission device 3 includes a second support ring 35 slidably connected in the protective case 1 , a connecting ring 36 fixedly connected to the bottom plate 2 and a guide ring 37 fixedly connected to the protective case 1 . The second support ring 35 is located at the lower side of the first limit ring 11 for supporting the second support ring 35, the connecting ring 36 can limit the axial movement of the second support ring 35, and the guide ring 37 can drive the second support ring 35 to Movement in a spiral direction.

Specifically, the connecting ring 36 is sleeved on the second support ring 35 , and the guide ring 37 is sleeved on the connecting ring 36 . On the outer wall of the second supporting ring 35, a third stop block 351 extending radially is fixed, and a third slide groove 361 extending along the axial direction of the connecting ring 36 is provided on the connecting ring 36. On the guide ring 37 A helical guide groove 371 is provided on the inner wall, and the third stopper 351 is inserted in the third slide groove 361, and the end of the third stopper 351 away from the second support ring 35 is embedded in the guide groove 371, and through the guide The groove 371 can support the second supporting ring 35 . When turning the base plate 2, the base plate 2 will drive the connecting ring 36 to rotate, and due to the cooperation of the third stopper 351 and the third chute 361, the connecting ring 36 will also drive the second support ring 35 to rotate; The end of the block 351 is located in the guide groove 371, so when the second support ring 35 rotates, it will rotate with the guide groove 371 in a spiral shape, and realize lifting while rotating, so as to realize the adjustment of the height of the downlight 4.

Wherein, the third limiting block 351 can be provided with one or more than one third limiting block 351. This application takes two symmetrically arranged third limiting blocks 351 as an example, and the guide groove 371 on the guide ring 37 is also corresponding Two guide slots 371 are opened with a 180-degree offset, and the two third stoppers 351 can slide in the two guide slots 371 respectively. The arrangement of the two third limit blocks 351 can support the opposite sides of the second support ring 35 at the same time, and the support is more stable.

It can be understood that the guide ring 37 can also be affixed to the base plate 2 , the connection ring 36 can be affixed to the protective shell 1 , and the second support ring 35 can be moved up and down by rotating the guide ring 37 . When the connecting ring 36 is fixedly connected to the protective case 1 , the second supporting ring 35 can only move up and down without rotating synchronously with the bottom plate 2 .

The inner hole of the second support ring 35 is tapered, and the inner hole of the second support ring 35 gradually increases in diameter from the end close to the first limiting ring 11 to the end away from the first limiting ring 11. In the second supporting ring 35 Ladder-shaped steps are processed in the hole, which can diffuse the light of the downlight 4 and reduce the probability of glare produced by the downlight 4 .

Referring to Fig. 4, a second mounting ear 352 is affixed to the outer wall of the second support ring 35, and the second mounting ear 352 is located between the second support ring 35 and the protective shell 1, and the protective shell 1 and the second mounting shell can be connected by bolts. The ears 352 are fixed together to realize the connection between the second support ring 35 and the protective case 1 .

Referring to Fig. 4, the end of the second support ring 35 facing the first limit ring 11 is also provided with a limit groove 353 for inserting the snap ring 15, and the snap ring 15 can be fixed by inserting the snap ring 15 into the limit groove 353. The relative positions of the first limiting ring 11 and the second supporting ring 35 are controlled to avoid radial movement between the two.

The implementation principle of Embodiment 2 is: when the downlight 4 needs to be adjusted after the downlight 4 is installed on the indoor building, the bottom plate 2 can be rotated directly, and the bottom plate 2 will drive the connecting ring 36 to rotate, thereby driving the third stopper 351 rotates along the helical direction of the guide ring 37 to adjust the height of the downlight 4 .

All of the above are preferred embodiments of the application, and are not intended to limit the protection scope of the application. Therefore, all equivalent changes made according to the structure, shape, and principle of the application should be covered by the protection scope of the application. Inside.

Claims

A lamp holder capable of adjusting the glare value of a downlight, characterized in that it comprises a bottom plate (2), a protective case (1) for placing the downlight (4), and a protective shell (1) for transmitting the movement of the bottom plate (2) to the downlight (4) the transmission device (3), the downlight (4) is slidably connected in the protective shell (1), the bottom plate (2) is rotatably connected to one end of the protective shell (1), when the When the base plate (2) rotates, the transmission device (3) drives the downlight (4) to move along the axis direction of the base plate (2) in the protective shell (1).
A lamp holder capable of adjusting the glare value of a downlight according to claim 1, wherein a first stop ring (11) for supporting the downlight (4) is slidably connected in the protective shell (1) ), the first limiting ring (11) is located between the downlight (4) and the transmission device (3), and the first limiting block (111) is fixed on the side wall of the first limiting ring (11) ), the protective shell (1) is provided with a first sliding slot (12) for the first limiting block (111) to slide.
A lamp holder with adjustable downlight glare value according to claim 2, characterized in that: the transmission device (3) includes a first support ring (32) placed on the lower side of the downlight (4) and a fixed The support teeth (31) connected to the bottom plate (2), the end of the first support ring (32) away from the downlight (4) is provided with a plurality of adjustment teeth (33), and the plurality of adjustment teeth ( 33) is a group, and among the adjusting teeth (33) of the same group, the distance between the adjusting teeth (33) and the downlight (4) increases gradually from one side to the other, and the supporting teeth (31) resist Connected to the regulating teeth (33), when the bottom plate (2) rotates, the supporting teeth (31) abut against each regulating tooth (33) in turn.
A lamp holder capable of adjusting the glare value of a downlight according to claim 3, characterized in that: there are at least two sets of said adjusting teeth (33), and at least two sets of said supporting teeth (31), each One set of regulating teeth (33) corresponds to each supporting tooth (31), and two adjacent groups of regulating teeth (33) are connected end to end.
A lamp holder capable of adjusting the glare value of a downlight according to claim 3, characterized in that: the adjusting tooth (33) is in the shape of a right triangle; one side of the supporting tooth (31) is arc-shaped, The other side is provided with an anti-retreat groove (311), and when the support tooth (31) abuts against the adjustment tooth (33), the right angle between the anti-retreat groove (311) and the adjustment tooth (33) side abutment.
A lamp holder capable of adjusting the glare value of a downlight according to claim 3, characterized in that: a second limiting ring (14) is fixed inside the protective shell (1), and the second limiting ring (14) Sleeved on the first supporting ring (32), the second limiting block (331) is fixedly connected to the adjusting tooth (33), and the second limiting ring (14) is provided with A second sliding slot (141) for the second limiting block (331) to slide.
A lamp holder with adjustable glare value of downlight according to claim 3, characterized in that: the transmission device (3) also includes an abutment ring ( 34), the first limit ring (11) is fixedly connected with a snap ring (15) toward one end of the transmission device (3), the first support ring (32) and the abutment ring (34 ) to form a snap groove (38) for the snap ring (15) to embed.
The lamp holder with adjustable glare value of downlight according to claim 2, characterized in that: the transmission device (3) includes a second support ring (35), fixed on the bottom plate (2) or the The connecting ring (36) on the protective case (1) and the guide ring (37) fixed on the protective case (1) or the bottom plate (2), the second support ring (35) is fixed A third stopper (351) is connected, and a third chute (361) for the third stopper (351) to slide is opened on the connecting ring (36), and the length of the third chute (361) is The direction is consistent with the axial direction of the connecting ring (36), and the guide ring (37) is provided with a guide groove (371) for the end of the third stopper (351) to be embedded, and the guide groove ( 371) in a helical shape.
A lamp holder with adjustable glare value of downlight according to claim 8, characterized in that: the inner hole of the second support ring (35) is conical, and the inner hole of the second support ring (35) is from The hole diameter gradually increases from the end close to the first limiting ring (11) to the end away from the first limiting ring (11).
A lamp holder for adjusting the glare value of downlights according to any one of claims 1-9, characterized in that: the end of the protective shell (1) away from the bottom plate (2) is closed, and the protective shell ( 1) A return spring (13) is placed inside, and the two ends of the return spring (13) abut against the closed end of the protective shell (1) and the downlight (4) respectively.