CN215569883U - Chain unit and chain lamp - Google Patents

Abstract

The invention discloses a chain type unit and a chain type lamp, and belongs to the technical field of lighting lamps. The chain type unit is composed of at least two chain type subunits, each chain type subunit comprises an inner ring base, a light source and an outer ring cover body, and the light sources are arranged between the outer ring cover body and the inner ring base; the end part of the inner ring base is provided with a connecting lug, and the two chain type subunits which are oppositely arranged are connected through the connecting lug; according to the chain type lamp, the two adjacent chain type units are connected through the connecting terminal, and the inner ring of the chain ring is not required to be bent repeatedly by applying external force. The chain type lamp is fast assembled, meanwhile, the chain type units are not required to be bent, deformation and damage of chain rings can be avoided, the formed chain type lamp is combined with the split type structure design of the chain type units, the connection strength among the chain type units can be guaranteed, and the chain type lamp cannot be easily broken due to external impact.

Description

Chain unit and chain lamp

Technical Field

The invention relates to the field of decoration brightening, in particular to a chain type unit and a chain type lamp.

Background

With the continuous improvement of the material culture life of people, more and more people take home beautification and decoration as a symbol for improving the life quality. This is a very important aspect of the choice of decorative lighting, and therefore a wide variety of decorative lighting styles have been created. For example, patent document 1 discloses a decorative lamp string, which includes a lamp bead and a conducting wire electrically connected between the lamp bead, the lamp bead has two pins electrically connected, an inner core of the conducting wire is preferably a single structure, and the core and the pins are welded together by butt welding.

Moreover, the chain type lamp decoration is also one of the varieties which is deeply favored by people. Patent document 2 discloses a chain type lamp decoration, which is formed by sleeving a plurality of chain rings, each chain ring is a detachable hollow chain ring, and a bulb and a power-on wire are arranged in the hollow chain ring. Patent document 3 discloses a chain type lamp decoration, which is formed by sleeving a plurality of chain rings, wherein bulbs and electrified wires are arranged and distributed in the chain rings, and wire threading openings are formed in chain ring shells; each shell can be broken into a recoverable opening at the installation seam.

And common chain lamp decoration among the prior art adopts the mode of gomphosis to connect each chain link usually, and this kind of connected mode need break the curved with the fingers and thumb to the chain link casing, then makes its embedding adjacent chain intra-annular, and the chain link casing of bending once more merges the piece, and the chain link casing is at the easy deformation of repeated bending in-process, and the chain lamp intensity of constituteing is also not high, and the assembly is also comparatively loaded down with trivial details. Moreover, the chain lamp light emitting area among the prior art is little, and luminous inhomogeneous phenomenon appears easily, and simultaneously, the tensile yield strength of chain lamp of prior art is low, when it uses in special scene, for example outdoor scene, then can't satisfy the demand of this type of scene to safety protection.

Patent document 1: CN112303513A, 2021-02-02, decorative lamp string;

patent document 2: CN2388481Y, 2000-07-19, a chain type lamp decoration;

patent document 3: CN2639680Y, 2004-09-08 and a chain type lamp decoration.

SUMMERY OF THE UTILITY MODEL

1. Problems to be solved

Aiming at the problem that a chain type lamp in the prior art is easy to deform due to bending, the chain type unit comprises at least two chain type subunits, wherein each chain type subunit comprises an inner ring base, a light source and an outer ring cover body, and the light source is arranged between the outer ring cover body and the inner ring base; the end part of the inner ring base is provided with a connecting lug, and the two chain type subunits which are oppositely arranged are connected through the connecting lug; when realizing swift equipment, need not to bend the chain unit, can avoid the deformation of chain ring impaired.

The outer ring cover body can wrap the light source and part of the inner ring base to provide the largest light emitting surface, and the problem that the light emitting surface of the chain type lamp in the prior art is small is solved.

According to the chain type lamp, two adjacent chain type units are connected through the connecting terminals, external force is not required to be applied to repeatedly bend the inner ring base, so that the range of materials can be wide, for example, the materials are manufactured by a metal die casting process, the tensile yield strength can reach 220Mpa, the materials are selected and combined with the split type structure design of the chain type units, the connecting strength among the chain type units can be guaranteed, and the chain type lamp cannot be easily broken due to external impact.

2. Technical scheme

In order to solve the problems, the technical scheme adopted by the invention is as follows:

the invention provides a chain type unit which is composed of at least two chain type subunits, wherein each chain type subunit comprises an inner ring base, a light source and an outer ring cover body, the outer ring cover body and the inner ring base are arranged in a matched mode, and the light source is arranged between the outer ring cover body and the inner ring base; the end part of the inner ring base is provided with a connecting lug, and the two chain type subunits which are oppositely arranged are connected through the connecting lug.

Preferably, the depth of the first mounting groove is H₁The depth of the second mounting groove is H₂，H₂≥2.5H₁. Further preferably, the inner ring base has a first mounting groove with a depth H₁(ii) a The outer ring cover body is provided with a second mounting groove with the depth of H₂(ii) a Then H₂＞H₁。

Preferably, the chain unit comprises two chain subunits, the ends of the chain subunits are connected end to end and detachably form a closed ring body; optionally, the chain elements are axisymmetric about a line where the two ends are joined.

Preferably, a convex strip is arranged on the inner side edge of the outer ring cover body along the length direction, and a clamping block is arranged on the convex strip; the inner ring base is provided with a sealed edge along the edge thereof, the sealed edge is provided with a clamping groove, and the outer ring cover body is connected with the inner ring base in a buckling manner through the matching of the clamping block and the clamping groove.

Preferably, the light source is LED lamp area, and LED lamp area bonds in the first mounting groove of inner ring base.

Preferably, a gap is formed between the connecting lugs, the light source leads the outgoing line of the light source into the connecting terminal, and the connecting terminal is embedded in the gap.

Preferably, the connecting terminal comprises a heat shrink tube, a soldering tin ring is arranged in the heat shrink tube, and the light sources of the two adjacent chain-type subunits are electrically connected through the soldering tin ring.

Preferably, the inner ring base is manufactured by a metal die-casting process, and the tensile yield strength of the inner ring base is not lower than 220 Mpa.

Preferably, the outer ring cover body is made of a transparent PC material, and the light transmittance is not lower than 88%.

The invention further provides a chain type lamp which comprises at least two chain type units, wherein two adjacent chain type units are mutually sleeved, and the light sources are connected through the connecting terminals.

3. Advantageous effects

Compared with the prior art, the invention has the beneficial effects that:

(1) the invention relates to a chain type unit which is composed of at least two chain type subunits, wherein each chain type subunit comprises an inner ring base, a light source and an outer ring cover body, and the light source is arranged between the outer ring cover body and the inner ring base; the inner ring base tip is equipped with the engaging lug, connects two chain formula subunits that will set up relatively through the engaging lug, when realizing swift equipment, need not to bend the chain formula unit, can avoid the deformation of chain ring impaired.

(2) According to the chain type unit, the depth of the first mounting groove of the inner ring base is smaller than that of the second mounting groove of the outer ring cover body, so that the outer ring cover body can wrap the light source and part of the inner ring base in the outer ring cover body; light emitted by the light source can be uniformly distributed on the outer ring cover body, the light emitting area of the chain type unit is increased, light emitting is uniform and soft, and the problem that the light emitting surface of a chain type lamp in the prior art is small is solved.

(3) According to the chain type unit, the depth of the first mounting groove of the inner ring base is smaller than that of the second mounting groove of the outer ring cover body, the heat dissipation performance of the device can be improved to a certain extent, and meanwhile, when the outer ring cover body is collided by external force, the light source is damaged.

(4) According to the chain type unit, one end of the inner ring base, which is provided with the notch, is used for connecting adjacent chain type units, the outgoing line of the light source is led into the connecting terminal, the connecting terminal is embedded in the notch, each outgoing line of the light source can be wrapped by the connecting terminal after the connecting terminal is contracted, the wire protection and waterproof functions of the connecting terminal are guaranteed, the two adjacent chain type units are connected through the connecting terminal, quick assembly is achieved, and meanwhile deformation and damage of a chain ring can be avoided.

(5) The chain type lamp comprises at least two buckled chain type units, and is combined and assembled in a mode of buckling the chain type units in a ring-ring buckling mode, and the connection characteristics of the chain are restored, so that the lamp not only has a decoration function, but also has a protection effect, and is particularly suitable for being used as a protection chain in outdoor scenes.

(6) According to the chain type lamp, two adjacent chain type units are connected through the connecting terminals, external force is not required to be applied to repeatedly bend the inner ring base, so that the range of materials can be wide, for example, the materials are manufactured by a metal die casting process, the tensile yield strength can reach 220Mpa, the materials are selected and combined with the split type structure design of the chain type units, the connecting strength among the chain type units can be guaranteed, and the chain type lamp cannot be easily broken due to external impact.

Drawings

FIG. 1 is a schematic view of the inner ring base of the present invention;

FIG. 2 is a schematic diagram of an explosive structure (closed loop structure) of a chain unit of the present invention;

FIG. 3 is a schematic view of a chain type lamp according to the present invention (half chain structure);

FIG. 4 is a schematic view of a chain type lamp according to the present invention (two half chain assembly structure);

FIG. 5 is a schematic view of an exploded structure of a chain type lamp according to the present invention;

FIG. 6 is a schematic view of a chain type lamp according to the present invention after assembly;

FIG. 7 is a schematic structural view of a connection terminal according to the present invention;

FIG. 8 is a schematic view of a longitudinal cross-sectional depth illustration of the outer ring cage and inner ring base of the present invention;

in the figure:

100. an inner ring base; 110. connecting lugs; 111. sealing edges; 112. a card slot; 113. a notch; 120. a connecting member;

200. a light source; 210. wire outgoing; 220. a connection terminal; 221. heat shrink tubing; 222. hot melt adhesive; 223. a soldering tin ring;

300. an outer annular shield body; 310. a clamping block;

400. an adhesive tape;

Detailed Description

The following detailed description of exemplary embodiments of the invention refers to the accompanying drawings, which form a part hereof, and in which is shown by way of illustration exemplary embodiments in which the invention may be practiced, and in which elements and features of the invention are identified by reference numerals. The following more detailed description of the embodiments of the invention is not intended to limit the scope of the invention, as claimed, but is presented for purposes of illustration only and not limitation to describe the features and characteristics of the invention, to set forth the best mode of carrying out the invention, and to sufficiently enable one skilled in the art to practice the invention. It will, however, be understood that various modifications and changes may be made without departing from the scope of the invention as defined in the appended claims. The detailed description and drawings are to be regarded as illustrative rather than restrictive, and any such modifications and variations are intended to be included within the scope of the present invention as described herein. Furthermore, the background is intended to be illustrative of the state of the art as developed and the meaning of the present technology and is not intended to limit the scope of the invention or the application and field of application of the invention.

It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present; the terms "vertical," "horizontal," "left," "right," "inner," "outer," and the like are used herein for descriptive purposes only.

In order to facilitate installation, chain lamps in the prior art often adopt an embedding mode to connect all chain rings, the connecting mode needs to bend the chain ring shells off the fingers and thumb, then the chain ring shells are embedded into adjacent chain rings, the chain ring shells are bent again to combine the abutted seams, the chain ring shells are easy to deform in the repeated bending process, the strength of the formed chain units is not high, and the chain lamp is worthy of further improvement.

The invention provides a chain type unit which is composed of at least two chain type subunits, wherein each chain type subunit comprises an inner ring base 100, a light source 200 and an outer ring cover body 300, the outer ring cover body 300 is matched with the inner ring base 100, and the light source 200 is arranged between the outer ring cover body 300 and the inner ring base 100. The end of the inner ring base 100 is provided with a connecting lug 110, and the two oppositely arranged chain-type subunits are connected through the connecting lug 110. The connection mode is a mode of gluing or connecting by using plug-in components such as a bolt.

As a specific embodiment, the inner ring base 100 has a first mounting groove with a depth H₁(ii) a The outer ring cover 300 has a second mounting groove with a depth of H₂(ii) a Then H₂＞H₁Is preferably H₂≥2.5H₁The light-transmitting surface of the outer ring cover 300 is significantly enlarged. That is, the outer ring cover 300 covers the light source 200 on the inner ring base 100 at this time from the perspective of the longitudinal section of the inner ring base 100. It should be noted that, when the inner ring base 100 receives the light source 200 therein, the outer ring cover 300 may be covered with a similar structure in the opening of the inner ring base 100.

To further illustrate the "depth" of the present invention, as shown in a of FIG. 8, the outer ring cover 300 has a concave-shaped longitudinal section, and the distance between the top highest point and the bottom lowest point of the outer ring cover 300 is the depth H₂(ii) a Similarly, as shown in b of fig. 8, the longitudinal section of the inner ring base 100 is also concave, and the distance between the top highest point and the bottom lowest point of the inner ring base 100 is the depth H₁. It is worth pointing out that the diagrams a and b in FIG. 8 are only denoted by H₂And H₁The structure of (1) is illustrated.

With reference to fig. 2, the chain unit of the present invention comprises two chain subunits, the ends of which are connected end to end and which detachably form a closed loop. Optionally, the chain elements are axisymmetric about a line where the two ends are joined. It should be noted that the chain link inner rings in the chain unit of this embodiment may be an integrated or split type half ring structure, and the chain link inner rings of two adjacent half ring structures are sleeved with each other, and may also form a half chain structure. In particular, reference may be made to the half-chain cell structure illustrated in fig. 3. Preferably, the inner ring of the chain ring in the embodiment is an arc-shaped half ring.

The specific structure of the chain type unit is shown in fig. 2, the inner ring of the chain ring shown in fig. 2 is an arc-shaped half ring, and two arc-shaped half rings which are symmetrically arranged are spliced with each other to form a closed ring with a regular structure. That is, the chain unit in this embodiment is a complete chain ring structure, and the structure can be disassembled and assembled. Preferably, the chain units in this embodiment may be assembled by using two inner ring bases 100 symmetrically arranged, and external force is not required to be applied to repeatedly bend the inner ring bases 100, so that the inner ring bases 100 in this embodiment may be manufactured by using a metal die casting process (e.g., an aluminum die casting process), and the tensile yield strength of the inner ring bases is not lower than 220 Mpa.

The end of the inner ring base 100 is provided with a connecting lug 110, and the two oppositely arranged chain-type subunits are connected through the connecting lug 110. A gap 113 is formed between the connecting lugs 110, the light source 200 leads the outgoing line 210 thereof into a connecting terminal 220, and the connecting terminal 220 is embedded in the gap 113. In order to facilitate the assembly of the chain unit, the connecting lug 110 is provided with a mounting hole in the embodiment, and the connecting member 120 penetrates into the mounting hole to connect the two inner ring bases 100 in the chain unit. As an embodiment, the connecting member 120 is a screw assembly in this embodiment. Of course, the connecting member 120 in this embodiment may also be a detachable connecting structure such as a positioning pin matched with the mounting hole, and will not be described herein again.

The connecting terminal 220 is a heat-shrinkable terminal, which includes a heat-shrinkable tube 221, a solder ring 223 is disposed in the heat-shrinkable tube 221, and the light sources 200 of two adjacent chain-type sub-units are electrically connected through the solder ring 223. Specifically, in the present embodiment, the connection terminal 220 is a heat-shrinkable terminal, and includes a heat-shrinkable tube 221, a solder ring 223 is disposed in the heat-shrinkable tube 221, and the solder ring 223 electrically connects the lighting devices of two adjacent chain units. In this embodiment, each section of the lighting device is fixed on the inner ring of the chain ring, each outgoing line 210 of the lighting device is connected through a connection terminal 220, specifically, the outgoing lines 210 at two ends are led into a heat shrink tube 221, the connection terminal 220 is heated/blown with hot air to about 160 ℃, the solder ring 223 is melted and then the outgoing lines 210 at two ends are connected together to realize electrical connection, the hot melt adhesive 222 on the surface of the heat shrink tube 221 is heated and melted, and the heat shrink tube 221 can wrap each outgoing line 210 of the lighting device after being shrunk, so that the waterproof function of the protection line of the lighting device is ensured. The specific structure of the connection terminal 220 can be understood with reference to fig. 7.

Preferably, after the outgoing line 210 of the lighting device in this embodiment is led into the connection terminal 220, the connection terminal 220 is thermally shrunk and then dispensed at two end portions of the connection terminal 220. The connecting terminal 220 is glued at the two ends after the wiring is in thermal shrinkage, and the waterproof grade of the connecting terminal is guaranteed to reach IP 68. In the embodiment, after the outgoing line 210 of the light source 200 is led into the connection terminal 220, the connection terminal 220 and/or the outgoing line 210 are wound and wrapped by the adhesive tape 400. Specifically, in this embodiment, the adhesive tape 400 is a teflon adhesive tape 400, and the teflon adhesive tape 400 is high temperature resistant, wear resistant, slip resistant, and stick resistant, and can effectively protect the outgoing line 210 and the connection terminal 220 from being worn during movement, thereby prolonging the service life thereof.

A convex strip is arranged on the inner side edge of the outer ring cover body 300 along the length direction, and a clamping block 310 is arranged on the convex strip; the edge of the inner ring base 100 is provided with a sealed edge 111, the sealed edge 111 is provided with a clamping groove 112, and the outer ring cover body 300 is connected with the inner ring base 100 in a clamping manner through the matching of the clamping block 310 and the clamping groove 112. The outer ring cover 300 is made of transparent PC material, and the light transmittance is not lower than 88%.

In addition, the chain unit in this embodiment further includes an outer ring cover 300, and the outer ring cover 300 is fastened to the inner ring base 100. Preferably, in this embodiment, the outer ring cover 300 is made of a transparent PC material, the light transmittance is not lower than 88%, and the toughness and the impact resistance of the outer ring cover can ensure that the outer ring cover cannot be easily broken outdoors, and the outer ring cover 300 is fixed on the inner ring base 100 through a buckle structure.

As an implementation manner, in this embodiment, the light source 200 is an LED strip, and the LED strip is adhered in the first installation groove of the inner ring base 100. Of course, the light source 200 in this embodiment may also be a small bulb, which has a lighting function, and when the small bulb is used as the light source 200, it may be fixed on the inner ring base 100 in other ways. When the LED tape is used as the light source 200, the LED tape is adhered on the inner surface of the inner ring base 100. Specifically in this embodiment, the back of LED lamp area is attached with 3M double-sided tape 400, and its strong adhesion, sun-proof, waterproof, durable characteristic can ensure that LED lamp area does not peel off in outdoor permanent use, and the installation is simple very much moreover, dismantles to tear and also can not leave the cull. Further, in this embodiment, the LED strip is wrapped by a transparent sleeve, and the sleeve is filled with glue, so that the light source 200 can meet the standard of IP 68.

In addition, this embodiment still provides a chain lamp, including two at least above-mentioned chain units, two adjacent chain units cup joint each other, and link to each other through connecting terminal 220 between two adjacent chain unit's the line 210, and connecting terminal 220 inlays and locates in two adjacent chain unit's breach 113.

To further understand a chain unit of the present invention, the present embodiment provides an assembling manner of a chain lamp, which includes the following steps:

firstly, the outgoing lines 210 of each section of LED lamp strip are connected in a butt joint mode according to the positive and negative poles and are connected through the connecting terminals 220, and the corresponding number of LED lamp strips are connected according to the number of preset chain links of each string;

then, tearing off release liner paper on the back adhesive of the LED lamp strip, and adhering the release liner paper on the inner ring substrate 100 respectively, wherein at this time, the chain ring becomes a long string of half-chains, which can be understood by referring to the schematic diagram of the half-side chain structure shown in fig. 3;

then, aligning the two half chains end to end, winding the two same-position connecting terminals 220 by using a teflon adhesive tape 400, corresponding the inner ring bases 100 of the two half chains one by one, and fixing the inner ring bases 100 between the half chains together by using screw components, wherein attention needs to be paid to the fact that the chain rings are buckled when the chain ring assembly is carried out, and the assembly structure of the two half chains in fig. 4 can be specifically shown;

finally, the outer ring cover bodies 300 made of PC material are buckled into the inner ring base 100 one by one, and the effect is shown in fig. 5, which is an exploded structure diagram of the chain unit, and fig. 6, which is a structure diagram after the lamp shade is assembled. In addition, the outgoing line 210 parts of the head and the tail of the chain ring can be connected with a waterproof butt joint, so that the chain ring is convenient to disassemble and assemble, and the protection grade can reach IP 68.

The invention provides a chain type unit, which comprises at least two ring forming bodies, wherein all the ring forming bodies form the chain type unit together. Further illustrating the structure of the annulation: the ring forming body comprises a base 100, a cover body 400, a light source 200 and a light guide bar 300, wherein the base 100, the light source 200, the light guide bar 300 and the cover body 400 are arranged from bottom to top in sequence from the base 100 to the top. 400

As a specific embodiment, the base 100 includes a middle section and mounting grooves 110, and the mounting grooves 110 are disposed at both ends of the middle section. It should be noted that the mounting groove 110 and the middle section are not located on the same horizontal plane, that is, both ends of the middle section of the base 100 are provided with downward bends, and the middle section is connected with the mounting groove 110 through the bends, so that the horizontal plane where the mounting groove 110 is located is different from the horizontal plane where the middle section is located. The side of the base 100 is provided with a reinforcing rib 150 to improve the strength of the base 100. The two ends of the base 100 are provided with mounting protrusions 130, the mounting protrusions 130 are provided with clamping through holes, the mounting protrusions 130 extend in a direction away from the mounting groove 110, and different ring forming bodies are connected through the mounting protrusions 130. The base 100 is generally manufactured using a metal die casting process, and has a tensile yield strength of not less than 220 Mpa.

As a specific ring body connecting method, as shown in fig. 4, after two ring bodies are combined with each other, the clamping through holes are coaxially disposed, and the ring bodies are positioned and installed in cooperation with an insert, a screw, a nut, or the like, for example, two spring bolts are used to fix the mounting protrusions 130 together, thereby fixing different ring bodies. The base 100 is provided with notches 170 at two ends, and the notches 170 are used for providing a routing space for the wires 220 of the adjacent ring-shaped light sources 200 when being connected. In a preferred embodiment, the middle section of the base 100, which is away from the light source 200, is provided with one or more limiting protrusions 120; when one limiting protrusion 120 is provided, the limiting protrusion 120 has limiting surfaces at both sides; when any two chain units are connected, the limiting bulge 120 and the inner sides of the chain units together form a space which can limit other chain units; when setting up to two at least spacing archs 120, different spacing archs 120 have the spacing face that is located the different sides, can be used to the other chain unit of restriction and remove, prevent that the chain unit from being destroyed by excessively dragging the electric wire 220 that leads to, avoid the chain lamp to become invalid.

The cover 400 is used for protecting the light source 200, and is disposed in cooperation with the base 100, and an installation cavity is formed between the cover 400 and the base 100, and is used for installing the light source 200 and the light guide bar 300. In order to ensure good light transmittance, the cover 400 is generally made of transparent PC material, and the light transmittance is not lower than 88%. In a preferred embodiment, at least one of a plurality of ribs, protrusions or grooves is disposed on the inner side of the cover 400, so as to diffuse the light of the intermediate light source 200, improve the visual effect, and enhance the heat dissipation effect. The ribs or bumps may also act as ribs 150 to increase strength. The raised lines are arranged in a crossed manner to form a grid structure or a grating structure. Furthermore, the raised lines, the bulges or the grooves can form different patterns, and a better light visual effect can be realized.

The light source 200 is located in the mounting cavity, preferably including at least two light sources 200, and the light sources 200 are electrically connected. The light source 200 is disposed in the mounting groove 110, and as shown in fig. 1, the light source 200 is disposed at two ends of the light guide bar 300, and light is guided at the positions, so that the light guide effect is better. As a specific embodiment, the light source 200 includes a circuit board 210 and a light emitter, the circuit board 210 is disposed in the mounting groove 110, and the light emitter is disposed on the circuit board 210. The circuit board 210 is a PCB board and/or the light emitter is an LED light bead 230. As a specific implementation manner, the light source 200 includes two PCB boards, and each PCB board is correspondingly provided with one LED lamp bead 230, the two PCB boards are fixed in the mounting groove 110 of the base 100 by using a double-sided adhesive tape, and the two PCB boards are connected by using a wire 220 and are sealed by using a transparent potting adhesive to seal the mounting groove 110, so that the light source 200 is fixed in the mounting groove 110, and the waterproof performance thereof is improved.

The light guide bar 300 is located between the cover 400 and the light source 200, and the length of the light guide bar 300 is smaller than that of the cover 400, so that the light guide bar 300 is conveniently sleeved in the cover 400 (PMMA/PC plus a diffusant). As a specific installation manner, a fixing through hole 140 is formed on the middle section of the base 100, a fixing position is formed on the inner side of the light guide bar 300 close to the light source 200, and the light guide bar 300 is installed on the base 100 by a fixing member, such as a screw 160.

The invention further provides a chain type lamp which is formed by connecting at least two chain type units in series, as shown in fig. 5, as a specific implementation mode, the chain type lamp comprises two independent circuits, a plurality of C-shaped rings are mutually connected in series to form one circuit, and after the C-shaped rings are connected in series to form the circuit, the ring bodies of different circuits are mutually spliced to form the chain type lamp. The chain type unit is an independent circuit, and external force is not required to be applied to repeatedly bend the inner ring base in the assembling process, so that the range of materials can be selected widely, for example, the materials are manufactured by a metal die casting process, the tensile yield strength can reach 220Mpa, the materials are selected and combined with the split type structure design of the chain type unit, the connection strength of the chain type lamp can be guaranteed, and the chain type lamp cannot be easily broken due to external impact.

More specifically, although exemplary embodiments of the invention have been described herein, the invention is not limited to these embodiments, but includes any and all embodiments modified, omitted, combined, e.g., between various embodiments, adapted and/or substituted, as would be recognized by those skilled in the art from the foregoing detailed description. The limitations in the claims are to be interpreted broadly based the language employed in the claims and not limited to examples described in the foregoing detailed description or during the prosecution of the application, which examples are to be construed as non-exclusive. Any steps recited in any method or process claims may be executed in any order and are not limited to the order presented in the claims. The scope of the invention should, therefore, be determined only by the appended claims and their legal equivalents, rather than by the descriptions and examples given above.

Claims (10)

1. A chain unit, consisting of at least two chain subunits, characterized in that: the chain type subunit comprises an inner ring base (100), a light source (200) and an outer ring cover body (300), wherein the outer ring cover body (300) is matched with the inner ring base (100), and the light source (200) is arranged between the outer ring cover body (300) and the inner ring base (100);

the end part of the inner ring base (100) is provided with a connecting lug (110), and the two chain type subunits which are oppositely arranged are connected through the connecting lug (110).

2. A chain unit according to claim 1, characterized in that: the inner ring base (100) is provided with a first mounting groove, and the depth of the first mounting groove is H₁(ii) a The outer ring cover body (300) is provided with a second mounting groove, and the depth of the second mounting groove is H₂(ii) a Then H₂＞H₁。

3. A chain unit according to claim 1, characterized in that: the chain type unit comprises two chain type subunits, the end parts of the chain type subunits are connected end to end, and a closed ring body is formed by the chain type subunits in a detachable mode; the chain unit is axisymmetric with a straight line where the two end parts are connected.

4. A chain unit according to claim 1, characterized in that: a convex strip is arranged on the inner side edge of the outer ring cover body (300) along the length direction, and a clamping block (310) is arranged on the convex strip; the inner ring base (100) is provided with a sealing edge (111) along the edge of the inner ring base, the sealing edge (111) is provided with a clamping groove (112), and the outer ring cover body (300) is connected with the inner ring base (100) in a clamping manner through the matching of the clamping block (310) and the clamping groove (112).

5. A chain unit according to claim 1, characterized in that: the light source (200) is an LED lamp strip, and the LED lamp strip is bonded in the first mounting groove of the inner ring base (100).

6. A chain unit according to claim 1, characterized in that: a gap (113) is formed between the connecting lugs (110), the light source (200) leads the outgoing line (210) of the light source into the connecting terminal (220), and the connecting terminal (220) is embedded in the gap (113).

7. A chain link as claimed in claim 2Element, characterized in that: the depth of the first mounting groove is H₁The depth of the second mounting groove is H₂，H₂≥2.5H₁。

8. A chain unit according to claim 6, characterized in that: the connecting terminal (220) comprises a heat shrink tube (221), a soldering tin ring (223) is arranged in the heat shrink tube (221), and the two adjacent chain-type subunits are electrically connected through the soldering tin ring (223).

9. A chain unit according to any one of claims 1-8, wherein: the inner ring base (100) is manufactured by adopting a metal die-casting process, and the tensile yield strength is not lower than 220 Mpa; and/or

The outer ring cover body (300) is made of a transparent PC material, and the light transmittance is not lower than 88%.

10. A chain lamp, characterized in that: comprising at least two chain-link units according to any of claims 1 to 9, wherein two adjacent chain-link units are nested in each other and the light sources (200) are connected to each other by a connecting terminal (220).

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