A lamp anti-drop connection device

Abstract

The present invention provides a lamp anti-detachment connection device, comprising: a base, a plurality of locking strips arranged circumferentially, and gaps between adjacent locking strips forming a card slot; a first threaded member is fixed on the locking strip; a lampshade, a second threaded member matched with the first threaded member and a plurality of mounting holes arranged along the second threaded member; a card connection mechanism, comprising a spiral strip, a first telescopic member and a plurality of second telescopic members; when the lampshade is threadedly connected to the base, the spiral strip abuts against the base to slide axially, and the spiral strip squeezes the second telescopic member to extend out of the mounting hole and abuts against the side wall of the first mounting groove or the locking strip; as the lampshade rotates, the second telescopic member can slide along the locking strip; when the lampshade and the base are connected, the locking strip limits the circumferential movement of the second telescopic member, and at least one second telescopic member cooperates with the card slot. The lampshade and the base of the present invention achieve good sealing through threaded connection, and the self-locking function is achieved through the cooperation of the second telescopic member and the card slot, so that the lampshade and the base are connected more firmly.

Description

Technical Field

[0001] The invention relates to the technical field of lamps, and in particular to a lamp anti-detachment connection device. Background Art

[0002] A ceiling lamp is a type of lamp that is installed on a roof. In the prior art, a ceiling lamp generally includes a base and a lampshade. The base is fixed to the wall, and the lampshade and the base are connected by a rotating snap-on structure. In some scenarios, the wall may vibrate, such as earthquakes, construction, traffic vibrations, wind impacts, problems with the house's own structure, etc. The connection between the lampshade and the base is prone to loosening, causing dust or mosquitoes and other debris to enter the lampshade, or even the lampshade to fall off the base.

[0003] The information disclosed in the background technology section of this application is only intended to deepen the understanding of the general background technology of this application, and should not be regarded as an admission or any form of suggestion that the information constitutes the prior art already known to those skilled in the art. Summary of the invention

[0004] Based on this, it is necessary to provide a lamp anti-detachment connection device to address the problem that the base and lampshade of the current lamp are not firmly connected and are easy to loosen.

[0005] The above purpose is achieved through the following technical solutions:

[0006] A lamp anti-drop connection device, comprising:

[0007] A base, wherein the base is provided with a first mounting groove and a plurality of locking strips circumferentially arranged on the side wall of the first mounting groove, and the gaps between adjacent locking strips form a clamping groove; a first threaded member is fixed on the locking strip;

[0008] A lampshade, matched with the first mounting groove; the lampshade is provided with a second threaded member matched with the first threaded member and a plurality of mounting holes arranged along the second threaded member;

[0009] The clamping mechanism comprises a spiral strip, a first telescopic member and a plurality of second telescopic members; the first telescopic member is connected to the lampshade, one end of the spiral strip extends out of the lampshade, and the other end of the spiral strip is connected to the first telescopic member; the second telescopic member is slidably arranged in the mounting hole and extends out of the mounting hole at one end close to the spiral strip; wherein the locking strip has a wedge-shaped cross-section, and when the lampshade is threadedly connected to the base, the spiral strip abuts against the base to drive the first telescopic member to be compressed, and the spiral strip squeezes the second telescopic member to extend out of the mounting hole and abut against the side wall of the first mounting groove or the locking strip; as the lampshade rotates, the second telescopic member can slide on the surface of the locking strip; when the lampshade and the base are connected, the locking strip limits the circumferential movement of the second telescopic member, and at least one of the second telescopic members cooperates with the clamping slot.

[0010] Further, the end of the lampshade away from the base is the head end, and the end of the lampshade close to the base is the tail end; the plurality of mounting holes are arranged along the second threaded member from the head end to the tail end of the lampshade, and the spacing between adjacent mounting holes increases or decreases in sequence in the form of an arithmetic progression;

[0011] The distance between the first mounting hole and the second mounting hole is a, the distance between the last mounting hole and the second to last mounting hole is b, and the width of the slot is d, wherein ab=±d.

[0012] Furthermore, the lampshade is provided with a connecting groove extending axially along the lampshade and the opening of the connecting groove is close to the base, the first telescopic part is located in the connecting groove and connected to the lampshade, one end of the spiral strip is connected to the first telescopic part, and the other end of the spiral strip extends out of the connecting groove; the connecting groove is located on the radial inner side of the second threaded part; the mounting hole is connected to the connecting groove.

[0013] Furthermore, the second telescopic member includes a telescopic spring and two clamping blocks; the two clamping blocks are respectively connected to two ends of the telescopic spring, and one end of the clamping block away from the telescopic spring is an arc-shaped end.

[0014] Furthermore, a limiting block is provided on the outer side of the clamping block, and a limiting groove cooperating with the limiting block is provided on the side wall of the mounting hole.

[0015] Furthermore, the spiral strip is made of magnetic material.

[0016] Furthermore, the spiral strip is provided with a plurality of support bodies which are staggered with respect to the mounting holes, and the support bodies are located in the gaps of the spiral strip itself.

[0017] Furthermore, the first telescopic member is a mounting spring.

[0018] Furthermore, the lampshade includes a mounting portion, and the second threaded member is arranged on the mounting portion; and a second mounting groove matching with the mounting portion is formed at the bottom of the first mounting groove.

[0019] Furthermore, it also includes a gasket; the cross-section of the mounting portion is L-shaped; a third mounting groove cooperating with the mounting portion is provided at one end of the base away from the second mounting groove, and the gasket is located in the third mounting groove and between the base and the lampshade.

[0020] The beneficial effects of the present invention are:

[0021] The base of the present invention is used to be fixed on the roof; the lampshade is embedded in the first mounting groove and rotated, so that the first threaded member and the second threaded member are screwed together, and before the spiral strip abuts the base, one end of the second telescopic member close to the slot is located in the mounting hole, so that the connection between the first threaded member and the second threaded member is relatively smooth; when the spiral strip abuts the base, as the lampshade rotates continuously, the spiral strip begins to squeeze the first telescopic member and the second telescopic member, the first telescopic member is compressed along the axial direction of the lampshade, the second telescopic member slides along the mounting hole and the second telescopic member rotates with the lampshade, and one end of the second telescopic member away from the spiral strip abuts against the locking strip or the side wall of the first mounting groove, when the lampshade and the base are connected, that is, the first threaded member and the second threaded member are locked and no longer rotated, at this time, at least one second telescopic member cooperates with the slot, and the locking strip limits the circumferential movement of the second telescopic member. The cooperation of the first threaded member and the second threaded member makes the connection between the lampshade and the base better in sealing, and the cooperation of the second telescopic member and the slot makes the connection between the lampshade and the base have a self-locking function, preventing the lampshade from automatically detaching from the base, so that the connection between the lampshade and the base is relatively firm. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of a lamp anti-detachment connection device according to an embodiment of the present invention;

[0023] Figure 2 A cross-sectional view of a lamp anti-detachment connection device according to an embodiment of the present invention;

[0024] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0025] Figure 4 A schematic structural diagram of a base according to an embodiment of the present invention;

[0026] Figure 5 for Figure 4 Enlarged view of point B in the middle;

[0027] Figure 6 A schematic diagram of the structure of a lampshade according to an embodiment of the present invention;

[0028] Figure 7 for Figure 6 Enlarged view of point C in the middle;

[0029] Figure 8 A schematic diagram of the structure of a spiral strip according to an embodiment of the present invention;

[0030] Fig. 9 Schematic diagram of the structure of a second telescopic member according to an embodiment of the present invention.

[0031] Among them: 100, base; 101, first mounting slot; 102, clamping slot; 103, second mounting slot; 110, locking strip; 120, first threaded member; 130, lamp body; 200, lampshade; 201, mounting hole; 202, connecting slot; 203, limiting slot; 204, third mounting slot; 210, second threaded member; 220, mounting portion; 230, gasket; 240, light-transmitting cover; 310, spiral strip; 320, first telescopic member; 330, second telescopic member; 3310, telescopic spring; 3320, clamping block; 3321, limiting block. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0033] The serial numbers assigned to the components herein, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned in this application, unless otherwise specified, include direct and indirect connections (couplings). In the description of the present invention, it should be understood that the orientation or position relationship indicated by the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc. are based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0034] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0035] Combine the following Figure 1-Figure 9 , describing a lamp anti-detachment connection device according to an embodiment of the present invention.

[0036] A lamp anti-detachment connection device, comprising: a base 100, the base 100 is provided with a first mounting groove 101 and a plurality of locking strips 110 circumferentially arranged on the side wall of the first mounting groove 101, and the gaps between adjacent locking strips 110 form a clamping groove 102; a first threaded member 120 is fixed on the locking strip 110; a lampshade 200, which cooperates with the first mounting groove 101; the lampshade 200 is provided with a second threaded member 210 that cooperates with the first threaded member 120 and a plurality of mounting holes 201 arranged along the second threaded member 210; a clamping mechanism, comprising a spiral strip 310, a first telescopic member 320 and a plurality of second telescopic members 330; the first telescopic member 320 is connected to the lampshade 200, one end of the spiral strip 310 extends out of the lampshade 200, and the other end of the spiral strip 310 extends out of the lampshade 200 The first telescopic member 320 is connected to the first telescopic member 320; the second telescopic member 330 is slidably arranged in the mounting hole 201 and one end of the spiral strip 310 extends out of the mounting hole 201; wherein the locking strip 110 has a wedge-shaped cross-section. When the lampshade 200 is threadedly connected to the base 100, the spiral strip 310 abuts against the base 100 to drive the first telescopic member 320 to be compressed. The spiral strip 310 squeezes the second telescopic member 330 to extend out of the mounting hole 201 and abuts against the side wall of the first mounting groove 101 or the locking strip 110; as the lampshade 200 rotates, the second telescopic member 330 can slide on the surface of the locking strip 110; when the lampshade 200 and the base 100 are connected, the locking strip 110 limits the circumferential movement of the second telescopic member 330, and at least one second telescopic member 330 cooperates with the slot 102.

[0037] The base 100 is used to be fixed on the roof; the lampshade 200 is inserted into the first mounting groove 101 and rotated, so that the first threaded member 120 and the second threaded member 210 are screwed together, and before the spiral strip 310 abuts against the base 100, one end of the second telescopic member 330 close to the slot 102 is located in the mounting hole 201, so that the connection between the first threaded member 120 and the second threaded member 210 is smoother; when the spiral strip 310 abuts against the base 100, as the lampshade 200 continues to rotate, the spiral strip 310 begins to squeeze the first telescopic member 320 and the second telescopic member 330, and the first telescopic member 320 and the second telescopic member 330 are screwed together. The first and second telescopic members 320 are compressed along the axial direction of the lampshade 200, the second telescopic member 330 slides along the mounting hole 201 and the second telescopic member 330 rotates with the lampshade 200, and the end of the second telescopic member 330 away from the spiral strip 310 abuts against the locking strip 110 or the side wall of the first mounting groove 101. When the lampshade 200 and the base 100 are connected, that is, the first threaded member 120 and the second threaded member 210 are locked and no longer rotated, at this time, at least one second telescopic member 330 cooperates with the slot 102, and the locking strip 110 limits the circumferential movement of the second telescopic member 330. The cooperation of the first threaded member 120 and the second threaded member 210 makes the connection between the lampshade 200 and the base 100 more sealed, and the cooperation of the second telescopic member 330 and the slot 102 makes the connection between the lampshade 200 and the base 100 have a self-locking function, preventing the lampshade 200 from automatically detaching from the base 100, so that the connection between the lampshade 200 and the base 100 is more secure.

[0038] The cross-section of the locking strip 110 can be a wedge-shaped, specifically, the cross-section of the locking strip 110 can be a right-angled trapezoid. When the lampshade 200 is locked and rotated along the base 100, the inclined surface of the locking strip 110 first abuts against the second telescopic part 330, and the locking strip 110 will not restrict the movement of the second telescopic part 330; when the lampshade 200 tends to rotate away from the base 100, the right-angle surface of the locking strip 110 abuts against the second telescopic part 330.

[0039] The extension direction of the second threaded member 210 is perpendicular to the length direction of the locking strip 110 , so that the right angle of the locking strip 110 has a stronger blocking effect on the second telescopic member 330 , and the self-locking ability between the lampshade 200 and the base 100 is better.

[0040] In one embodiment, the end of the lampshade 200 away from the base 100 is the head end, and the end of the lampshade 200 close to the base 100 is the tail end; a plurality of mounting holes 201 are arranged along the second threaded member 210 from the head end to the tail end of the lampshade 200, and the spacing between adjacent mounting holes 201 increases or decreases in an arithmetic progression;

[0041] The distance between the first mounting hole 201 and the second mounting hole 201 is a, the distance between the last mounting hole 201 and the second to last mounting hole 201 is b, and the width of the slot 102 is d, wherein ab=±d.

[0042] In this embodiment, when the lampshade 200 stops rotating relative to the base 100, the arrangement of the mounting holes 201 allows the lampshade 200 to have a second telescopic member 330 at any position that can engage with the slot 102, thereby achieving a self-locking function between the lampshade 200 and the base 100.

[0043] In one embodiment, the lampshade 200 is provided with a connecting groove 202 extending axially along the lampshade 200 and the opening of the connecting groove 202 is close to the base 100, the first telescopic member 320 is located in the connecting groove 202 and is connected to the lampshade 200, one end of the spiral strip 310 is connected to the first telescopic member 320, and the other end of the spiral strip 310 extends out of the connecting groove 202; the connecting groove 202 is located on the radial inner side of the second threaded member 210; the mounting hole 201 is connected to the connecting groove 202.

[0044] In one embodiment, the second telescopic member 330 includes a telescopic spring 3310 and two clamping blocks 3320 ; the two clamping blocks 3320 are respectively connected to two ends of the telescopic spring 3310 , and one end of the clamping block 3320 away from the telescopic spring 3310 is an arc-shaped end.

[0045] The spiral strip 310 itself has multiple gaps in the axial direction. When the spiral strip 310 does not squeeze the block 3320, the block 3320 close to the spiral strip 310 is located in the gap of the spiral strip 310, and the block 3320 away from the spiral strip 310 is located in the mounting hole 201; when the spiral strip 310 squeezes the block 3320, the block 3320 close to the spiral strip 310 drives the other block 3320 to extend out of the mounting hole 201 through the telescopic spring 3310 and cooperate with the slot 102.

[0046] The end of the block 3320 away from the telescopic spring 3310 is an arc-shaped end, so that when the spiral strip 310 squeezes the block 3320, the block 3320 can be smoothly pressed and slide along the mounting hole 201. It should be noted that the block 3320 close to the spiral strip 310 can be provided with a larger arc surface, such as a spherical surface; the block 3320 away from the spiral strip 310 can be provided with a smaller arc surface, for example, the block 3320 is cylindrical as a whole, and the end surface of the block 3320 close to the slot 102 is rounded, and the radius of the rounded corner is less than 1 / 2 of the radius of the block 3320, so that after the block 3320 is embedded in the slot 102, the right-angled surface of the locking strip 110 squeezes the block 3320 and it is not easy to cause the block 3320 to detach from the slot 102, so as to enhance the self-locking effect between the lampshade 200 and the base 100.

[0047] In one embodiment, a limit block 3321 is provided on the outer side of the clamping block 3320, and a limit groove 203 is provided on the side wall of the mounting hole 201 to cooperate with the limit block 3321. When the lampshade 200 is not connected to the base 100, the limit block 3321 can limit the axial sliding of the clamping block 3320 along the mounting hole 201, thereby preventing the second telescopic member 330 from being separated from the mounting hole 201 as a whole.

[0048] In one embodiment, the spiral strip 310 can be made of a magnetic material. The spiral strip 310 itself is spiral-shaped and has a certain width and thickness, so that the strength of the spiral strip itself is relatively large. When the spiral strip 310 abuts the base 100 and moves along the axial direction of the lampshade 200, the axial ends of the spiral strip 310 are squeezed and the spiral strip 310 will not be axially deformed. When the spiral strip 310 squeezes the second telescopic member 330, the second telescopic member 330 applies a radial force to the spiral strip 310. At this time, the spiral strip 310 is located in the connecting groove 202, and the lampshade 200 has a radial support effect on the spiral strip 310 to prevent the spiral strip 310 from radial deformation.

[0049] To prevent the spiral strip 310 from rotating in the connection groove 202 and causing the rotated spiral strip 310 to fail to align with the mounting hole 201 , the first telescopic member 320 is fixed to the bottom of the connection groove 202 , and the spiral strip 310 is fixedly connected to the first telescopic member 320 .

[0050] When it is necessary to remove the lampshade 200 from the base 100, people can hold the annular magnet and align it with the spiral strip 310 from the bottom of the lampshade 200. The annular magnet is a strong magnet and the inner and outer diameters of the annular magnet are the same as the inner and outer diameters of the spiral strip 310. The annular magnet attracts the spiral strip 310 to compress the first telescopic part 320 downward, so that the gap of the spiral strip 310 itself is aligned with the mounting hole 201. At this time, the end of the second telescopic part 330 close to the connecting groove 202 rebounds and enters the connecting groove 202, and the end of the second telescopic part 330 close to the second threaded part 210 is disengaged from the slot 102. The locking strip 110 no longer limits the lampshade 200, and the lampshade 200 can be removed from the base 100 by rotating the lampshade 200 in the opposite direction.

[0051] It should be noted that the spiral strip 310 itself has a certain strength, and the spiral strip 310 itself will not produce axial deformation when attracted by the annular magnet. The depth of the connecting groove 202 in the lampshade 200 and the size and elastic modulus of the first telescopic member 320 can be set as needed, so that when the annular magnet is attached to the surface of the lampshade 200, the gap of the spiral strip 310 is just aligned with the mounting hole 201 after the spiral strip 310 moves downward.

[0052] A pattern may be provided on the surface of the lampshade 200 corresponding to the spiral strip 310 , ie, the projection position of the spiral strip 310 on the lampshade 200 , so that people can conveniently align the annular magnet with the pattern to accurately locate and attract the spiral strip 310 .

[0053] In one embodiment, the spiral strip 310 can be provided with a plurality of support bodies that are misaligned with the mounting hole 201, and the support bodies are located in the gap of the spiral strip 310 itself. The support body can be in the shape of a cuboid, and the surface of the support body close to the side wall of the connecting groove 202 is an arc surface and the curvature is consistent with the spiral strip 310. The support body further prevents the spiral strip 310 from deforming during the axial force process. In one embodiment, the first telescopic member 320 is a mounting spring. The first telescopic member 320 makes the end of the spiral strip 310 close to the base 100 exceed the lampshade 200, so that the gap of the spiral strip 310 itself is aligned with the mounting hole 201, and the spiral strip 310 is prevented from squeezing the second telescopic member 330. In one embodiment, the lampshade 200 includes a mounting portion 220, and the second threaded member 210 is arranged on the mounting portion 220; the bottom of the first mounting groove 101 is provided with a second mounting groove 103 that cooperates with the mounting portion 220. When the mounting portion 220 is matched with the second mounting groove 103 , the second mounting groove 103 has the function of limiting and supporting the mounting portion 220 .

[0054] The second threaded member 210 is located radially outside the mounting portion 220, the connecting groove 202 is provided on the mounting portion 220 and located radially inside the second threaded member 210, and the opening of the connecting groove 202 faces the base 100. The first telescopic member 320 is located in the connecting groove 202 and connected to the mounting portion 220, one end of the spiral strip 310 is connected to the first telescopic member 320, and the other end of the spiral strip 310 extends out of the connecting groove 202.

[0055] In one embodiment, a gasket 230 is further included; the cross section of the mounting portion 220 is L-shaped; a third mounting groove 204 matching with the mounting portion 220 is provided at one end of the base 100 away from the second mounting groove 103, and the gasket 230 is located in the third mounting groove 204 and between the base 100 and the lampshade 200. The gasket 230 provides better sealing between the lampshade 200 and the base 100.

[0056] In one embodiment, the lampshade 200 further includes a light-transmitting cover 240 ; the light-transmitting cover 240 is in an arc-shaped surface and is fixed on the mounting portion 220 .

[0057] The bottom of the first mounting groove 101 of the base 100 can fix the light emitting lamp body 130, and the light emitted by the lamp body 130 is emitted into the room through the light-transmitting cover 240. The arc-shaped light-transmitting cover 240 has a diffusion effect on the light.

[0058] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0059] The above-described embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present application. It should be pointed out that, for a person of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the attached claims.

Claims

1. A lamp anti-detachment connection device, characterized in that: include: A base, wherein the base is provided with a first mounting groove and a plurality of locking strips circumferentially arranged on the side wall of the first mounting groove, and the gaps between adjacent locking strips form a clamping groove; a first threaded member is fixed on the locking strip; A lampshade, matched with the first mounting groove; the lampshade is provided with a second threaded member matched with the first threaded member and a plurality of mounting holes arranged along the second threaded member; The clamping mechanism comprises a spiral strip, a first telescopic member and a plurality of second telescopic members; the first telescopic member is connected to the lampshade, one end of the spiral strip extends out of the lampshade, and the other end of the spiral strip is connected to the first telescopic member; the second telescopic member is slidably arranged in the mounting hole and extends out of the mounting hole at one end close to the spiral strip; wherein the locking strip has a wedge-shaped cross section, and when the lampshade is threadedly connected to the base, the spiral strip abuts against the base to drive the first telescopic member to be compressed, and the spiral strip squeezes the second telescopic member to extend out of the mounting hole and abut against the side wall of the first mounting groove or the locking strip; as the lampshade rotates, the second telescopic member can slide on the surface of the locking strip; when the lampshade and the base are connected, the locking strip limits the circumferential movement of the second telescopic member, and at least one of the second telescopic members cooperates with the clamping slot; The end of the lampshade away from the base is the head end, and the end of the lampshade close to the base is the tail end; the plurality of mounting holes are arranged along the second threaded member from the head end to the tail end of the lampshade, and the spacing between adjacent mounting holes increases or decreases in sequence in the form of an arithmetic progression; The distance between the first mounting hole and the second mounting hole is a, the distance between the last mounting hole and the second to last mounting hole is b, and the width of the slot is d, wherein ab=±d.

2. The lamp anti-detachment connection device according to claim 1, characterized in that: The lampshade is provided with a connecting groove extending along the axial direction of the lampshade and the opening of the connecting groove is close to the base, the first telescopic part is located in the connecting groove and connected to the lampshade, one end of the spiral strip is connected to the first telescopic part, and the other end of the spiral strip extends out of the connecting groove; the connecting groove is located on the radial inner side of the second threaded part; the mounting hole is connected to the connecting groove.

3. The lamp anti-detachment connection device according to claim 2, characterized in that: The second telescopic member includes a telescopic spring and two clamping blocks; the two clamping blocks are respectively connected to two ends of the telescopic spring, and one end of the clamping block away from the telescopic spring is an arc-shaped end.

4. The lamp anti-detachment connection device according to claim 3, characterized in that: A limiting block is arranged on the outer side of the clamping block, and a limiting groove matched with the limiting block is arranged on the side wall of the mounting hole.

5. The lamp anti-detachment connection device according to claim 1, characterized in that: The spiral strip is made of magnetic material.

6. The lamp anti-detachment connection device according to claim 5, characterized in that: The spiral strip is provided with a plurality of support bodies which are staggered with the mounting holes, and the support bodies are located in the gaps of the spiral strip itself.

7. The lamp anti-detachment connection device according to claim 1, characterized in that: The first telescopic member is a mounting spring.

8. The lamp anti-detachment connection device according to claim 1, characterized in that: The lampshade comprises a mounting portion, and the second threaded member is arranged on the mounting portion; a second mounting groove matching with the mounting portion is formed at the bottom of the first mounting groove.

9. The lamp anti-detachment connection device according to claim 8, characterized in that: It also includes a gasket; the cross-section of the mounting portion is L-shaped; a third mounting groove matching the mounting portion is provided at one end of the base away from the second mounting groove, and the gasket is located in the third mounting groove and between the base and the lampshade.

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