Mask pressing plate and illuminating lamp

Abstract

The utility model relates to the technical field of lighting lamps, and provides a mask pressing plate and a lighting lamp, the mask pressing plate comprises a first pressing plate, a second pressing plate and an elastic piece, the first pressing plate is of a cavity structure with an opening in one end, and a cavity of the first pressing plate is used for containing the second pressing plate and the elastic piece; limiting openings communicated with the cavity are formed in the side walls of the two opposite sides of the first pressing plate, the elastic piece is installed on the bottom face of the first pressing plate in the first direction, and the first direction is perpendicular to the opening end face of the first pressing plate; the first pressing plate is provided with a limiting opening, the second pressing plate is provided with a limiting buckle matched with the limiting opening, when the second pressing plate is inserted into the cavity in the first direction, the elastic piece abuts against the position between the bottom face and the second pressing plate, the limiting buckle is clamped in the limiting opening, and the first pressing plate and the second pressing plate move relatively in the first direction by compressing or releasing the elastic piece; the length of the mask pressing plate in the first direction is adjusted so that the length of the mask pressing plate can be matched with the height of an optical cavity of the lighting lamp.

Description

Technical Field

[0001] The utility model relates to the technical field of lighting lamps, in particular to a mask pressing plate and a lighting lamp. Background Art

[0002] As one of the common daily lamps, LED ceiling lamps are not only energy-saving and environmentally friendly, but also simple and elegant. They are generally composed of a lamp holder, a light source, a ring-shaped hollow frame and a mask. The light source is installed on the lamp holder, the mask is mounted on the frame, and the assembly of the entire lamp is achieved by fixing the frame to the lamp holder. In order to ensure the stability of the mask installation and to prevent mosquitoes and light leakage, a mask pressing plate is usually installed on the frame to press and fix the mask after installation. However, the mask pressing plates inside the lamps are currently single molded plastic parts with a fixed length. Generally, they can only be adapted to lamps with a single cavity height. If the cavity height of the lamp is changed or adjusted, the current mask pressing plate will be unusable because the length cannot match the cavity height of the lamp.

[0003] Therefore, it is necessary to provide a new technical solution to solve the above technical problems. Utility Model Content

[0004] The utility model provides a mask pressing plate and a lighting fixture, which are used to solve the problem that the existing mask pressing plate cannot be used because its length cannot match the height of the lamp cavity when the height of the lamp cavity changes.

[0005] The utility model provides a mask pressing plate, comprising a first pressing plate, a second pressing plate and an elastic member, wherein the first pressing plate is a cavity structure with an opening at one end, the cavity of the first pressing plate is used to accommodate the second pressing plate and the elastic member, and the side walls on opposite sides of the first pressing plate are provided with limiting openings connected to the cavity, and the elastic member is installed on the bottom surface of the first pressing plate along a first direction, wherein the first direction is perpendicular to the open end surface of the first pressing plate;

[0006] The second pressure plate is provided with limit buckles adapted to the limit opening on opposite sides. When the second pressure plate is inserted into the cavity along the first direction, the elastic member abuts between the bottom surface and the second pressure plate, and the limit buckle is clamped in the limit opening. The first pressure plate and the second pressure plate are relatively moved along the first direction by compressing or releasing the elastic member to adjust the length of the mask pressure plate in the first direction.

[0007] Optionally, a first connecting column is provided in the cavity, the first connecting column is located on the bottom surface of the first pressure plate, the diameter of the first connecting column is smaller than the diameter of the elastic member, and one end of the elastic member is sleeved on the first connecting column.

[0008] Optionally, a second connecting column is provided at one end of the second pressure plate close to the bottom surface of the first pressure plate, the second connecting column is located between the two limit buckles and corresponds to the first connecting column, the diameter of the second connecting column is smaller than the diameter of the elastic member, and the other end of the elastic member is sleeved on the second connecting column.

[0009] Optionally, the second pressure plate also includes a pressure plate body, and a limiting groove is provided on the pressure plate body corresponding to the position of the second connecting column. A second connecting column is located at the bottom of the limiting groove, and the limiting groove extends along the first direction. The opening width of the limiting groove is greater than the diameter of the elastic member. The elastic member is inserted into the limiting groove and connected to the second connecting column.

[0010] Optionally, the two limiting buckles are respectively arranged at two ends of the pressure plate body close to the bottom surface, wherein a gap is formed between the limiting buckles and the pressure plate body.

[0011] Optionally, a limit block is provided on the side of the pressure plate body away from the bottom surface. When the second pressure plate moves along the first direction to the side close to the bottom surface to a preset position, the limit block contacts the open end surface of the first pressure plate to limit the position of the second pressure plate.

[0012] Optionally, the limiting opening is located on a side of the side wall close to the bottom surface, and the limiting opening extends along a first direction.

[0013] The utility model also provides a lighting fixture, comprising the mask pressing plate as described in any one of the above items.

[0014] Optionally, it also includes a mask and a frame, wherein the frame is provided with an inwardly bent crimping plate on one side close to the mask, the mask is overlapped on the crimping plate, the mask pressing plate is located on the inner side of the frame, the first pressing plate is fixed on the frame, the second pressing plate is abutted against the mask, and the moving direction of the second pressing plate relative to the first pressing plate is perpendicular to the mask.

[0015] Optionally, it also includes a chassis, and the mask, the frame and the chassis enclose an optical cavity. When the height of the optical cavity changes, the second pressing plate moves relative to the first pressing plate in a direction perpendicular to the mask, so that the length of the mask pressing plate in the direction perpendicular to the mask is adapted to the height of the optical cavity.

[0016] The above technical solution of the utility model has the following beneficial effects:

[0017] The mask pressing plate and lighting fixture provided by the utility model are achieved by setting the first pressing plate of the mask pressing plate to a cavity structure with an opening at one end, and accommodating the second pressing plate and the elastic member of the mask pressing plate in the cavity of the first pressing plate, and the elastic member is installed on the bottom surface of the first pressing plate in a direction perpendicular to the open end surface of the first pressing plate, and a limiting opening connected to the cavity is provided on the side walls on the opposite sides of the first pressing plate, and limiting buckles adapted to the limiting opening are provided on the opposite sides of the second pressing plate. When the second pressing plate is inserted into the cavity of the first pressing plate, the elastic member abuts between the bottom surface of the first pressing plate and the second pressing plate, and the limiting buckle is clamped in the limiting opening. By compressing or releasing the elastic member, the first pressing plate and the second pressing plate are relatively moved in a direction perpendicular to the open end surface of the first pressing plate, thereby adjusting the length of the mask pressing plate so that its length can be adapted to the optical cavity height of the lighting fixture. The utility model can solve the problem that the existing mask pressing plate cannot be used when the optical cavity height of the lamp changes because the length of the mask pressing plate cannot match the optical cavity height of the lamp. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the present invention or the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 An exploded view of the structure of the mask pressure plate provided in an embodiment of the utility model;

[0020] Figure 2 An assembly diagram of a mask pressure plate provided in an embodiment of the utility model;

[0021] Figure 3 for Figure 2 A front view of the mask pressure plate shown in ;

[0022] Figure 4 for Figure 2 A left side view of the mask pressure plate shown in ;

[0023] Figure 5 for Figure 2 A top view of the mask pressure plate shown in ;

[0024] Figure 6 for Figure 2 A cross-sectional view of a mask pressure plate shown in ;

[0025] Figure 7 A schematic diagram of the structure of a lighting fixture provided by an embodiment of the utility model;

[0026] Figure 8 for Figure 7 A schematic diagram of the structure of the frame and mask shown in;

[0027] Fig. 9 for Figure 7 A schematic diagram of a partial cross-sectional structure of a lighting fixture shown in FIG.

[0028] Reference numerals:

[0029] 1. First pressing plate; 2. Second pressing plate; 3. Elastic member; 10. Mask pressing plate; 20. Mask; 30. Frame; 40. Chassis; 100. Cavity; 1a. Side wall; 1b. Bottom; 101. Limit opening; 102. First connecting column; 200. Pressing plate body; 201. Limit buckle; 202. Second connecting column; 203. Limit slot; 204. Gap; 205. Limit block; 301. Pressing plate. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be described clearly and completely in conjunction with the drawings in the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] Combine the following Figures 1 to 9 The mask pressing plate and lighting fixture provided by the utility model are described in detail.

[0032] See also Figure 1 and Figure 2 The utility model provides a mask pressing plate, which is used in a lighting fixture, and includes a first pressing plate 1, a second pressing plate 2 and an elastic member 3. The first pressing plate 1 is a cavity structure with an opening at one end, and the cavity 100 of the first pressing plate 1 is used to accommodate the second pressing plate 2 and the elastic member 3, and the side walls 1a on the opposite sides of the first pressing plate 1 are provided with a limiting opening 101 connected to the cavity 100, and the elastic member 3 is installed on the bottom surface 1b of the first pressing plate 1 along a first direction, wherein the first direction is perpendicular to the open end surface of the first pressing plate 1.

[0033] The second pressing plate 2 is provided with limiting buckles 201 adapted to the limiting opening 101 on opposite sides. When the second pressing plate 2 is inserted into the cavity 100 along the first direction, the elastic member 3 abuts between the bottom surface 1b and the second pressing plate 2, and the limiting buckle 201 is clamped in the limiting opening 101, and the first pressing plate 1 and the second pressing plate 2 are relatively moved along the first direction by compressing or releasing the elastic member 3, thereby adjusting the length of the mask pressing plate in the first direction.

[0034] See also Figure 1In the present embodiment, the mask pressing plate includes a first pressing plate 1, a second pressing plate 2 and two elastic members 3. The first pressing plate 1 is a hollow rectangular structure, the second pressing plate 2 is adapted to the cavity 100 of the first pressing plate 1, and the second pressing plate 2 can be inserted into the cavity 100 of the first pressing plate 1 from the opening of the first pressing plate 1. Of course, according to the specific shape of the lighting fixture, the first pressing plate 1 can also be designed as a hollow arc structure to adapt to the lighting fixture with arc-shaped edges, which is not limited here. Among them, the limiting openings 101 on the side walls 1a on the opposite sides of the first pressing plate 1 are both located on the side of the side wall 1a close to the bottom surface 1b, and the two limiting openings 101 are symmetrically arranged about the center line of the first pressing plate 1, and the two limiting openings 101 extend along the first direction.

[0035] The elastic member 3 may be a spring.

[0036] See also Figure 1 , Figure 2 and Figure 6 A first connecting column 102 is provided in the cavity 100 of the first pressing plate 1, and the first connecting column 102 is located on the bottom surface 1b of the first pressing plate 1. The first connecting column 102 is used to fix one end of the elastic member 3, and the number of the first connecting columns 102 matches the number of the elastic members 3. The diameter of the first connecting column 102 is smaller than the diameter of the elastic member 3, and one end of the elastic member 3 is sleeved and fixed on the first connecting column 102.

[0037] A second connecting column 202 is provided at one end of the second pressing plate 2 close to the bottom surface 1b of the first pressing plate 1. The second connecting column 202 is used to fix the other end of the elastic member 3, and the number of the second connecting columns 202 matches the number of the elastic member 3. Specifically, the second pressing plate 2 includes a pressing plate body 200, two limiting buckles 201 and two second connecting columns 202. The two limiting buckles 201 are respectively arranged at the two ends of the pressing plate body 200 close to the bottom surface 1b. The two second connecting columns 202 are located between the two limiting buckles 201 and correspond to the first connecting column 102. The diameter of the second connecting column 202 is smaller than the diameter of the elastic member 3, and the other end of the elastic member 3 is sleeved and fixed on the second connecting column 202.

[0038] Among them, a limiting groove 203 is provided at the position of the pressure plate body 200 corresponding to the second connecting column 202, and a second connecting column 202 is located at the bottom of a limiting groove 203, and the limiting groove 203 extends along the first direction, and the opening width of the limiting groove 203 is greater than the diameter of the elastic member 3, and the elastic member 3 is penetrated in the limiting groove 203 and connected to the second connecting column 202. The setting of the limiting groove 203 can limit the elastic member 3 in the radial direction, prevent the elastic member 3 from bending during compression or release, and keep the elastic member 3 parallel to the first direction.

[0039] Furthermore, a gap 204 is formed between the two limiting buckles 201 and the platen body 200, respectively, and the gap 204 can be a reserved space for the bending of the limiting buckles 201. When the second platen 2 is inserted into the cavity 100 of the first platen 1, the two limiting buckles 201 are bent and deformed toward the corresponding gap 204. When the limiting buckles 201 move to the limiting opening 101, the limiting buckles 201 are not squeezed by the side wall 1a of the first platen 1 and pop out to the side away from the gap 204, so that they are stuck in the limiting opening 101, and the first platen 1 and the second platen 2 are assembled. Under the elastic action of the elastic member 3, the limiting buckle 201 can move in the limiting opening 101 along the first direction, thereby realizing the movement of the first platen 1 and the second platen 2 in the first direction.

[0040] Furthermore, a limit block 205 is provided on the side of the pressure plate body 200 away from the bottom surface 1b. When the second pressure plate 2 moves along the first direction toward the side close to the bottom surface 1b to a preset position, the limit block 205 contacts the open end surface of the first pressure plate 1, thereby limiting the position of the second pressure plate 2 in the first pressure plate 1.

[0041] When the mask pressing plate is assembled, one end of the elastic member 3 is first installed on the first connecting column 102, and then the second pressing plate 2 is aligned with the opening of the first pressing plate 1, and the other end of the elastic member 3 is installed on the second connecting column 202, and the second pressing plate 2 is pushed into the cavity 100 along the first direction until the limit buckle 201 is locked in the limit opening 101. After the assembly is completed, the following is formed. Figure 2 The mask pressure plate shown. Figure 2 The three views of the mask pressure plate are shown as follows Figures 3 to 5 shown.

[0042] The utility model also provides a lighting fixture, which comprises the mask pressing plate as described above.

[0043] The lighting fixture of this embodiment is described by taking a square ceiling lamp as an example. Figure 7 The ceiling lamp includes a mask pressing plate 10, a mask 20, a frame 30 and a chassis 40. The mask 20, the frame 30 and the chassis 40 enclose an optical cavity, and the light source assembly is arranged in the optical cavity. The frame 30 is a ring structure, the mask 20 is installed on the lower edge of the frame 30, and a plurality of mask pressing plates 10 are evenly installed on the inner wall of the frame 30 along the inner side of the frame 30, wherein the first pressing plate 1 of the mask pressing plate 10 can be fixed on the frame 30 by screws, and the second pressing plate 2 of the mask pressing plate 10 abuts against the mask 20 to press and fix the mask 20, and the moving direction of the second pressing plate 2 relative to the first pressing plate 1 is perpendicular to the mask 20.

[0044] See also Figure 8 and Fig. 9A crimping plate 301 bent inward is provided on one side of the frame 30 close to the mask 20, the mask 20 is overlapped on the crimping plate 301, the mask pressing plate 10 is installed on the inner wall of the frame 30, and the second pressing plate 2 of the mask pressing plate 10 is in contact with the side wall and the upper surface of the mask 20, and the mask 20 is fixed on the frame 30 through the crimping plate 301 and the mask pressing plate 10.

[0045] Please continue reading Figure 7 When the height d of the optical cavity of the ceiling lamp changes, the second pressing plate 2 moves relative to the first pressing plate 1 in a direction perpendicular to the mask 20, so that the length of the mask pressing plate 10 in a direction perpendicular to the mask 20 matches the height of the optical cavity, so that the mask pressing plate 10 can always effectively press the mask 20. For example, when the height d of the optical cavity of the ceiling lamp increases, under the action of the elastic member inside the mask pressing plate 10, the second pressing plate 2 moves to the side away from the first pressing plate 1, the length of the mask pressing plate 10 increases, and the elastic member can ensure that the second pressing plate 2 effectively presses the mask 20; when the height d of the optical cavity of the ceiling lamp decreases, the frame 30 can push the second pressing plate 2 to move to the side close to the first pressing plate 1, the length of the mask pressing plate 10 decreases, and the elastic member can ensure that the second pressing plate 2 effectively presses the mask 20.

[0046] To summarize, the mask pressure plate and lighting fixture of the present invention enable the first pressure plate and the second pressure plate to move relative to each other by compressing or releasing the elastic member to adjust the length of the mask pressure plate so that the length of the mask pressure plate matches the optical cavity height of the lighting fixture.

[0047] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A mask pressing plate, characterized in that: The invention comprises a first pressing plate (1), a second pressing plate (2) and an elastic member (3), wherein the first pressing plate (1) is a hollow structure with one end open, the cavity (100) of the first pressing plate (1) is used to accommodate the second pressing plate (2) and the elastic member (3), and the side walls (1a) on opposite sides of the first pressing plate (1) are provided with limiting openings (101) connected to the cavity (100), and the elastic member (3) is installed on the bottom surface (1b) of the first pressing plate (1) along a first direction, wherein the first direction is perpendicular to the open end surface of the first pressing plate (1); The second pressure plate (2) is provided with limiting buckles (201) adapted to the limiting opening (101) on opposite sides. When the second pressure plate (2) is inserted into the cavity (100) along the first direction, the elastic member (3) abuts between the bottom surface (1b) and the second pressure plate (2), and the limiting buckle (201) is clamped in the limiting opening (101). By compressing or releasing the elastic member (3), the first pressure plate (1) and the second pressure plate (2) are relatively moved along the first direction to adjust the length of the mask pressure plate in the first direction.

2. The mask pressure plate according to claim 1, characterized in that: A first connecting column (102) is provided in the cavity (100). The first connecting column (102) is located on the bottom surface (1b) of the first pressure plate (1). The diameter of the first connecting column (102) is smaller than the diameter of the elastic member (3). One end of the elastic member (3) is sleeved on the first connecting column (102).

3. The mask pressure plate according to claim 2, characterized in that: A second connecting column (202) is provided at one end of the second pressing plate (2) close to the bottom surface (1b) of the first pressing plate (1); the second connecting column (202) is located between the two limiting buckles (201) and corresponds to the first connecting column (102); the diameter of the second connecting column (202) is smaller than the diameter of the elastic member (3); the other end of the elastic member (3) is sleeved on the second connecting column (202).

4. The mask pressure plate according to claim 3, characterized in that: The second pressure plate (2) also includes a pressure plate body (200), and the pressure plate body (200) is provided with a limiting groove (203) at a position corresponding to the second connecting column (202), and a second connecting column (202) is located at the bottom of the limiting groove (203), and the limiting groove (203) extends along a first direction, and the opening width of the limiting groove (203) is greater than the diameter of the elastic member (3), and the elastic member (3) is inserted into the limiting groove (203) and connected to the second connecting column (202).

5. The mask pressure plate according to claim 4, characterized in that: The two limiting buckles (201) are respectively arranged at two ends of the pressing plate body (200) on one side close to the bottom surface (1b), wherein a gap (204) is formed between the limiting buckles (201) and the pressing plate body (200).

6. The mask pressure plate according to claim 5, characterized in that: A limiting block (205) is provided on the side of the pressure plate body (200) away from the bottom surface (1b); when the second pressure plate (2) moves along the first direction toward the side close to the bottom surface (1b) to a preset position, the limiting block (205) contacts the open end surface of the first pressure plate (1) to limit the position of the second pressure plate (2).

7. The mask pressure plate according to claim 1, characterized in that: The limiting opening (101) is located on a side of the side wall (1a) close to the bottom surface (1b), and the limiting opening (101) extends along a first direction.

8. A lighting fixture, characterized in that: It comprises a mask pressure plate (10) as described in any one of claims 1 to 7.

9. The lighting fixture according to claim 8, characterized in that: It also includes a mask (20) and a frame (30), wherein a side of the frame (30) close to the mask (20) is provided with a crimping plate (301) bent inwardly, the mask (20) is overlapped on the crimping plate (301), the mask pressing plate (10) is located on the inner side of the frame (30), the first pressing plate (1) is fixed on the frame (30), the second pressing plate (2) is in contact with the mask (20), and the moving direction of the second pressing plate (2) relative to the first pressing plate (1) is perpendicular to the mask (20).

10. The lighting fixture according to claim 9, characterized in that: The invention also comprises a base plate (40), wherein the mask (20), the frame (30) and the base plate (40) enclose an optical cavity, and when the height of the optical cavity changes, the second pressing plate (2) moves relative to the first pressing plate (1) in a direction perpendicular to the mask (20), so that the length of the mask pressing plate (10) in a direction perpendicular to the mask (20) is adapted to the height of the optical cavity.

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