Building block, terminal block and building block combination structure

Abstract

The utility model discloses a building block, terminal seat and building block combination structure, including building block main part, the top surface of building block main part is equipped with the first protruding portion of at least one first length direction array, the bottom surface of building block main part is equipped with the first recessed part of at least one first length direction array, the first protruding portion is passed through the first wiring groove of first length direction along being equipped with in building block main part, the both ends of building block main part are equipped with the second wiring groove of through along thickness direction, first wiring groove and second wiring groove are perpendicular arrangement and intercommunication, when wiring harness laying is carried out in building block, realizes transverse, longitudinal laying and avoids the situation that wiring harness is extruded, damaged.

Description

Technical Field

[0001] This utility model relates to the field of building block toy technology, and in particular to a building block, terminal block, and building block assembly structure. Background Technology

[0002] With the development of technology, in order to further improve the fun and educational performance of building block toys, electronic building blocks with power supply, drive and other modules have gradually emerged in recent years. After being programmed by PC, smart terminal and other devices, the building block modules can be assembled according to certain splicing rules to realize diverse building block combinations that can simulate circuits, move or light up.

[0003] Electronic building blocks require conductive and communication connections, which are generally made using wire harnesses. During the actual assembly of the building blocks, the wire harnesses need to be laid out and hidden to avoid the risk of them being exposed and pulled. However, when using existing building blocks to lay out the wire harnesses, there is a risk of squeezing and damage to the wire harnesses. Utility Model Content

[0004] (I) Technical Issues

[0005] The purpose of this utility model is to provide a building block, terminal block and building block combination structure, so as to realize horizontal and vertical laying of wire harness when laying wire harness in the building block and avoid the wire harness being squeezed and damaged.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A building block includes a building block body, the top surface of which is provided with at least one first protrusion arrayed in the extension direction, and the bottom surface of which is provided with at least one first groove arrayed in the length direction; a first wiring groove is formed on the building block body through the first protrusion in the length direction, and a second wiring groove is formed at both ends of the building block body through the thickness direction, wherein the first wiring groove and the second wiring groove are arranged perpendicularly and communicate with each other.

[0009] Preferably, the building block body is provided with a third wiring groove located between two adjacent first protrusions and extending through to one side.

[0010] Preferably, the side of the building block body is provided with a fourth wiring groove that runs through the thickness direction, and the building block body is provided with a fifth wiring groove that runs outward from the first wiring groove and through the first protrusion. The fourth wiring groove and the fifth wiring groove are arranged perpendicularly and are connected.

[0011] Preferably, the third wiring groove extends through the top surface of the block body.

[0012] Preferably, the portion of the first protrusion that is separated by the third wiring groove has a beveled structure extending toward the third wiring groove.

[0013] Preferably, the width of the third wiring groove is greater than the width of the first wiring groove and the second wiring groove.

[0014] Preferably, the number of the first protrusions is the same as the number of the first grooves.

[0015] Preferably, the cross-sectional shape of the first protrusion is circular, and the height of the first protrusion is the same as the depth of the first groove.

[0016] A terminal block is also proposed, including a plug-in base and a terminal plate embedded in the plug-in base, wherein terminals on the terminal plate extend out of the plug-in base; a block is inserted into the plug-in base, the block comprising a block body, the top surface of the block body having at least one first protrusion arrayed in the extension direction, and the bottom surface of the block body having at least one first groove arrayed in the length direction; a first wiring groove extending through the first protrusion in the length direction is formed on the block body, and a second wiring groove extending through the thickness direction is formed at both ends of the block body, the first wiring groove and the second wiring groove being arranged perpendicularly and communicating; a plug-in frame is provided at the top of the plug-in base, and the first groove is inserted into the plug-in frame to press the terminal plate; a sixth wiring groove extending through the thickness direction is formed at both ends of the plug-in base, the sixth wiring groove communicating with the second wiring groove; and a second groove having the same number of second grooves as the first protrusions of the block at the bottom of the plug-in base.

[0017] A modular assembly structure is also proposed, comprising a basic modular structure, modular blocks, terminal blocks, wiring harnesses, and a lamp body. The basic modular structure has a plurality of second protrusions arranged in an array. Each modular block includes a main body. The top surface of the main body has at least one first protrusion arranged in an extension direction, and the bottom surface of the main body has at least one first groove arranged in a length direction. The first grooves are inserted into the second protrusions. A first wiring groove is formed on the main body, extending through the first protrusions in the length direction. Second wiring grooves are formed at both ends of the main body, extending in the thickness direction. The first and second wiring grooves are arranged perpendicularly and communicate with each other. The terminal block includes a connector and an embedded... The terminal block inside the connector has terminals extending out of it. A connector frame is located at the top of the connector, and the first recessed portion is inserted into the connector frame to press the terminal block. Sixth wiring grooves extending along the thickness direction are formed at both ends of the connector, communicating with the second wiring groove. The bottom of the connector has the same number of second recessed portions as the first protrusions of the building block, which are inserted into the second protrusions. The lamp body is inserted into the second protrusion. One end of the wiring harness is connected to a terminal block, and the other end of the wiring harness is laid along the first wiring groove, the second wiring groove, or the sixth wiring groove and connected to the lamp body.

[0018] (III) Beneficial Effects

[0019] 1. A first protrusion and a first groove are provided on the main body of the building block to enable stacking with general building blocks. A first wiring groove is provided through the extension direction to facilitate the horizontal laying of the wires along the main body of the building block without causing compression when stacking other building blocks. At the same time, a second wiring groove is provided through the thickness direction to enable the wires to be laid longitudinally to meet the needs of cross-layer wiring.

[0020] 2. The building blocks that enable horizontal and vertical wiring can be applied to the terminal block to connect the target position of the power line at the terminal block. Specifically, the internal terminal plate is pressed and limited by the plug and the building block, while the wiring terminal extends out of the plug for easy wiring. After the wire harness comes out from the wiring terminal, it can be routed along the first or second wiring groove on the building block without being squeezed, so as to provide power to the remote end.

[0021] 3. In the modular structure, building blocks, terminal blocks, and other building blocks can be stacked together to present different shapes of modular structures and meet the requirements of internal wiring harness laying to achieve conductive connection. For example, after the power supply is connected to the lamp body through the wiring harness laid along the modular structure via the terminal block, the lamp body in the modular structure can be lit by controlling the power switch at the terminal block.

[0022] Meanwhile, the terminal block can enable multiple wire harnesses to make conductive connections to the outside at the same time, thereby expanding the number of conductive terminals. Attached Figure Description

[0023] Figure 1 This is a first-view structural diagram of the building block in the first embodiment of the present invention;

[0024] Figure 2 This is a second-view structural diagram of the building block in the first embodiment of the present invention;

[0025] Figure 3 This is a first-view structural diagram of the second embodiment of the building blocks in this utility model;

[0026] Figure 4 This is a second-view structural diagram of the second embodiment of the building blocks in this utility model;

[0027] Figure 5 This is a first-view structural diagram of the third embodiment of the building blocks in this utility model;

[0028] Figure 6 This is a second-view structural diagram of the third embodiment of the building blocks in this utility model;

[0029] Figure 7 This is a schematic diagram of the structure of the terminal block of this utility model;

[0030] Figure 8 This is an exploded view of the terminal block of this utility model;

[0031] Figure 9 This is a schematic diagram of the connector structure in this utility model;

[0032] Figure 10 This is a schematic diagram of the modular assembly structure in this utility model;

[0033] exist Figures 1 to 10 In the diagram, the correspondence between component names or lines and the drawing numbers is as follows:

[0034] 100 building block, 101 first protrusion, 102 first groove, 103 first wiring groove, 104 second wiring groove, 105 third wiring groove, 106 fourth wiring groove, 107 building block body, 108 fifth wiring groove, 200 terminal block, 201 plug-in block, 202 plug-in frame, 203 sixth wiring groove, 204 second groove, 205 mounting cavity, 206 notch structure, 207 limiting block, 208 terminal plate, 209 wiring terminal, 300 building block assembly structure, 301 basic building block structure, 302 second protrusion, 303 wire harness. Detailed Implementation

[0035] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0036] See Figures 1-6 As shown, an embodiment of this utility model proposes a building block 100, including a building block body 107. The top surface of the building block body 107 is provided with at least one first protrusion 101 arrayed in the extension direction, and the bottom surface of the building block body 107 is provided with at least one first groove 102 arrayed in the length direction. The size and spacing of the first protrusion 101 and the second groove are the same as those of general building blocks, so as to facilitate the stacking of the building block 100 with general building blocks. This is useful in situations where it is necessary to lay the wire harness 303 in the building block assembly structure 300 and avoid the wire harness 303 being squeezed and damaged. The building block body 107 has a first wiring groove 103 that runs through the first protrusion 101 along the length direction, and the two ends of the building block body 107 have a second wiring groove 104 that runs through the thickness direction. The first wiring groove 103 and the second wiring groove 104 are arranged perpendicularly and are connected. Since the wiring harness 303 may be laid horizontally or across layers according to the wiring requirements during the stacking process, the first wiring groove 103 and the second wiring groove 104 in two directions can meet the horizontal and vertical wiring requirements in the stacking structure, thereby avoiding the risk of the wiring harness 303 being squeezed and damaged.

[0037] During the specific wiring harness 303 laying process, when it is necessary to change the wiring direction to one side at the middle position of the building block 100, or to run the wiring into the lower or upper layer, the middle of the building block 100 needs to be laid outwards to avoid being squeezed. Therefore, a third wiring groove 105 is provided on the building block body 107, located between two adjacent first protrusions 101 and extending to one side. At the same time, a fourth wiring groove 106 is provided on the side of the building block body 107, extending along the thickness direction. A fifth wiring groove 108 is opened on the building block body 107, extending outwards from the first wiring groove 103 and penetrating the first protrusion 101. The fourth wiring groove 106 and the fifth wiring groove 108 are arranged perpendicularly and connected.

[0038] The third wiring groove 105 allows the wire harness 303 to be laid along the length of the block 100 for a certain distance before running to the side. The fourth wiring groove 106 and the fifth wiring groove 108 allow for cross-layer wiring. Alternatively, the wire can be run from other layers of blocks to the middle of the block 100 and then enter the first wiring groove 103 through the fifth wiring groove 108 and the fourth wiring groove 106. This provides more options for the stacking of blocks, enables the laying of the wire harness 303, and avoids the risk of the wire harness 303 being squeezed and damaged.

[0039] Since the wiring harness 303 may run from both sides during the stacking of blocks, multiple possibilities need to be provided. Specifically, the third wiring groove 105 can pass through the top surface of the block body 107. Thus, the direction of the wiring can be determined according to the position of the wiring harness 303 to ensure that it is not squeezed in the direction of the wiring.

[0040] Therefore, various block 100 structures can be constructed according to the actual requirements of laying the wire harness 303, thereby meeting the needs of block stacking. For example, the number of the first protrusion 101 and the second groove 204 can be at least one, which is convenient to cooperate and supplement with other blocks 100. The number can also be four, which is the length of the commonly used block 100. Of course, the number can also be 2, 3, 5, 6, etc., which can be determined according to the general block stacking requirements. Regardless of the specific number of the first protrusion 101 and the first groove 102 of the block 100, for the wiring of the wire harness 303, there must be a first wiring groove 103 and a second wiring groove 104. The third wiring groove 105 and the fourth wiring groove 106 are considered for the application when there is a wiring requirement in the middle. Generally speaking, the number of the first protrusion 101 and the first groove 102 is the same, and the cross-sectional shape of the first protrusion 101 is circular. The height of the first protrusion 101 is the same as the depth of the first groove, so as to facilitate stacking.

[0041] Therefore, depending on the way the blocks are stacked, the wire harness 303 can be hidden inside, avoiding messy wiring or being squeezed, so that the stacked blocks look neat and beautiful.

[0042] Meanwhile, a sloping structure extending toward the third wiring groove 105 is provided on the part of the first protrusion 101 that is separated by the third wiring groove 105, which can facilitate the wiring direction guidance and also guide the wiring of the wire harness 303 at a certain angle.

[0043] The width of the third wiring groove 105 is greater than the width of the first wiring groove 103 and the second wiring groove 104, which makes it easier to lay the wire harnesses 303 flat even when there are a large number of wires laid in the middle, so that they will not be squeezed.

[0044] The structure of the building block 100 described above allows it to be a one-piece molded structure, which is convenient for one-piece molding by injection molding and other methods, and facilitates mass production.

[0045] Based on the above embodiments, this utility model also proposes a terminal block 200, such as... Figures 7-9As shown, it specifically includes a connector 201 and a terminal board 208 embedded in the connector 201. The terminals 209 on the terminal board 208 extend out of the connector 201. A building block 100 is inserted into the connector 201, so that the connector 201 can be stacked with general-purpose building blocks and building blocks 100. Moreover, the terminals 209 integrated on the terminal board 208 can be interconnected. After one terminal 209 is electrically connected, the other terminals 209 can be simultaneously connected. And the on / off control can be realized through the circuit integrated on the terminal board 208, such as an integrated switch.

[0046] The building block 100 includes a building block body 107. The top surface of the building block body 107 has at least one first protrusion 101 arranged in an extension direction, and the bottom surface of the building block body 107 has at least one first groove 102 arranged in a length direction. The dimensions and spacing of the first protrusions 101 and the second grooves are the same as those of general-purpose building blocks, facilitating the stacking of the building block 100 with general-purpose building blocks. This allows for the laying of wire harnesses 303 in the building block assembly structure 300 while preventing damage from compression. A first wiring groove 103 is provided that runs through the first protrusion 101 along the length direction, and a second wiring groove 104 is provided at both ends of the building block body 107 that runs through the thickness direction. The first wiring groove 103 and the second wiring groove 104 are arranged perpendicularly and connected. Since the wiring harness 303 may be laid horizontally or across layers according to the wiring requirements during the stacking process, the first wiring groove 103 and the second wiring groove 104 in two directions can meet the horizontal and vertical wiring requirements in the stacking structure, thereby avoiding the risk of the wiring harness 303 being squeezed and damaged.

[0047] Meanwhile, a connector frame 202 is provided on the top of the connector 201. The first groove 102 is inserted into the connector frame 202 to press the terminal plate 208. The connector frame 202 matches the structure of the first groove 102 to realize the stacking of the building blocks 100. Specifically, a sixth wiring groove 203 is provided at both ends of the connector 201, which runs through the thickness direction. The sixth wiring groove 203 is connected to the second wiring groove 104, which facilitates the wiring to pass through the sixth wiring groove 203 and the second wiring groove 104 and then enter the first wiring groove 103 when running the wiring across layers. This further realizes the internal concealment of wiring and avoids the situation of being squeezed.

[0048] Specifically, the bottom of the plug-in base 201 is provided with a second groove 204 in the same number as the first protrusion 101 of the building block 100, so that the length of the building block 100 matches the length of the plug-in base 201, which facilitates the formation of a stable terminal base 200 structure.

[0049] The structural form of the building block 100 can be designed according to specific usage requirements.

[0050] Specifically, the connector 201 has an installation cavity 205 and a notch structure 206 for embedding and installing the wiring terminals 209 of the terminal block 208. The installation cavity 205 is used to store and position the terminal block 208, while the notch structure 206 is used to expose the wiring terminals 209 for easy wiring from the outside.

[0051] The mounting cavity 205 is provided with a limiting block 207 for pressing against the terminal plate 208. The limiting block 207 presses against the terminal plate 208 to prevent the terminal plate 208 from shaking.

[0052] Based on the above embodiments, this utility model also proposes a modular assembly structure 300, such as... Figure 10 As shown, it includes a basic building block structure 301, building block 100, terminal block 200, wire harness 303 and lamp body (not shown). The basic building block structure 301 is provided with a plurality of second protrusions 302, which can realize the stacking of building block 100, terminal block 200, lamp body and other components onto the basic building block structure 301. At the same time, common building blocks are used to achieve shaped stacking, such as flat building blocks, raised dot building blocks, etc., which can be used in conjunction with building block 100 and terminal block 200 to achieve various shaped stacking.

[0053] The building block 100 includes a building block body 107. The top surface of the building block body 107 has at least one first protrusion 101 arranged in an extension direction, and the bottom surface of the building block body 107 has at least one first groove 102 arranged in a length direction. The dimensions and spacing of the first protrusion 101 and the second groove are the same as those of general-purpose building blocks, facilitating the stacking of the building block 100 with general-purpose building blocks. This allows for the laying of the wire harness 303 in the building block assembly structure 300 while preventing the wire harness 303 from being crushed or damaged. The first wiring groove 103 is provided on the first protrusion 101 along the length direction, and the two ends of the building block body 107 are provided with the second wiring groove 104 along the thickness direction. The first wiring groove 103 and the second wiring groove 104 are arranged perpendicularly and connected. Since the wiring harness 303 may be laid horizontally and across layers according to the wiring requirements during the stacking process, the first wiring groove 103 and the second wiring groove 104 in two directions can meet the horizontal and vertical wiring requirements in the stacking structure, thereby avoiding the risk of the wiring harness 303 being squeezed and damaged.

[0054] The terminal block 200 includes a plug-in base 201 and a terminal plate 208 embedded in the plug-in base 201. The wiring terminals 209 on the terminal plate 208 extend out of the plug-in base 201. The top of the plug-in base 201 is provided with a plug-in frame 202. The first groove portion 102 is inserted into the plug-in frame 202 to press the terminal plate 208. After the building block 100 is inserted through the plug-in frame 202, the terminal plate 208 is pressed, which facilitates the connection of the wire harness 303 to conduct electricity outward from the wiring terminals 209.

[0055] Meanwhile, a sixth wiring groove 203 is provided at both ends of the plug-in 201, which extends through the thickness direction. The sixth wiring groove 203 is connected to the second wiring groove 104, which further facilitates the routing of the wire harness 303.

[0056] Specifically, the bottom of the plug-in base 201 is provided with a second groove 204, which is the same number as the first protrusion 101 of the building block 100. The second groove 204 is inserted into the second protrusion 302, thereby fixing the terminal base 200 as a whole on the basic building block structure 301.

[0057] Furthermore, the lamp body is inserted into the second protrusion 302, one end of the wiring harness 303 is connected to the terminal 209, and the other end of the wiring harness 303 is laid along the first wiring groove 103, the second wiring groove 104, or the sixth wiring groove 203 and connected to the lamp body. According to the insertion position of the lamp body in the modular assembly structure 300, the wiring harness 303 is led from the terminal 209 to the lamp body using the first wiring groove 103, the second wiring groove 104, the third wiring groove 105, the fourth wiring groove 106, the fifth wiring groove 108, etc., and the wiring harness 303 is hidden to avoid the risk of being squeezed and damaged.

[0058] Furthermore, the main body 107 of the building block is provided with a fifth wiring groove 108 located between two adjacent first protrusions 101 and extending to one side. The side of the main body 107 of the building block is provided with a fourth wiring groove 106 extending along the thickness direction. The fifth wiring groove 108 and the fourth wiring groove 106 are arranged perpendicularly and connected. The wire harness 303 is laid along the fifth wiring groove 108 or the fourth wiring groove 106, thereby enabling the wire harness 303 to be routed horizontally and vertically, achieving routing in multiple directions such as on the same plane, across layers, and vertically. This also satisfies the need for concealment and protection of the wire harness 303, ensuring a neat and aesthetically pleasing appearance for the entire building block assembly structure 300 and preventing the wire harness 303 from being damaged by compression. These functions are difficult to achieve in ordinary building blocks.

[0059] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0060] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0061] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A type of building block, characterized in that: The building block includes a block body, the top surface of which is provided with at least one first protrusion arrayed in the extension direction, and the bottom surface of which is provided with at least one first groove arrayed in the length direction. The building block body has a first wiring groove that runs through the first protrusion along its length, and the two ends of the building block body have a second wiring groove that runs through its thickness. The first wiring groove and the second wiring groove are arranged perpendicularly and are connected.

2. A building block according to claim 1, characterized in that: The main body of the building block is provided with a third wiring groove located between two adjacent first protrusions and extending through to one side.

3. A building block according to claim 2, characterized in that: The side of the building block body is provided with a fourth wiring groove that runs through the thickness direction, and the building block body is provided with a fifth wiring groove that runs outward from the first wiring groove and through the first protrusion. The fourth wiring groove and the fifth wiring groove are arranged perpendicularly and connected.

4. A building block according to claim 2, characterized in that: The third wiring groove extends through the top surface of the block body.

5. A building block according to claim 4, characterized in that: The portion of the first protrusion that is separated by the third wiring groove has a sloping structure extending toward the third wiring groove.

6. A building block according to claim 5, characterized in that: The width of the third wiring slot is greater than the width of the first wiring slot and the second wiring slot.

7. A building block according to claim 6, characterized in that: The number of the first protrusions is the same as the number of the first grooves.

8. A building block according to claim 7, characterized in that: The first protrusion has a circular cross-sectional shape, and the height of the first protrusion is the same as the depth of the first groove.

9. A terminal block, characterized in that: It includes a connector and a terminal block embedded in the connector, wherein the terminals on the terminal block extend out of the connector; A building block is inserted into the socket. The building block includes a building block body. The top surface of the building block body is provided with at least one first protrusion arrayed in the extension direction, and the bottom surface of the building block body is provided with at least one first groove arrayed in the length direction. The building block body has a first wiring groove that runs through the first protrusion along the length direction, and the two ends of the building block body have a second wiring groove that runs through the thickness direction. The first wiring groove and the second wiring groove are arranged perpendicularly and are connected. The top of the connector is provided with a connector frame, and the first groove portion is inserted into the connector frame to press the terminal plate; The two ends of the connector are provided with a sixth wiring groove that runs through the thickness direction, and the sixth wiring groove is connected to the second wiring groove; The bottom of the connector has a second groove with the same number of protrusions as the first protrusions of the building block.

10. A modular assembly structure, characterized in that: It includes a basic building block structure, building blocks, terminal blocks, wire harnesses and lamp bodies. The basic building block structure is provided with a plurality of second protrusions in an array. The building blocks include a building block body. The top surface of the building block body is provided with at least one first protrusion in an array in the extension direction. The bottom surface of the building block body is provided with at least one first groove in an array in the length direction. The first groove is inserted into the second protrusion. The building block body has a first wiring groove that runs through the first protrusion along the length direction, and the two ends of the building block body have a second wiring groove that runs through the thickness direction. The first wiring groove and the second wiring groove are arranged perpendicularly and are connected. The terminal block includes a plug socket and a terminal plate embedded in the plug socket. The wiring terminals on the terminal plate extend out of the plug socket. The top of the plug socket is provided with a plug frame. The first groove portion is inserted into the plug frame to press the terminal plate. The two ends of the connector are provided with a sixth wiring groove that runs through the thickness direction, and the sixth wiring groove is connected to the second wiring groove; The bottom of the connector is provided with a second groove portion that is the same number as the first protrusion portion of the building block, and the second groove portion is inserted into the second protrusion portion; The lamp body is inserted into the second protrusion, one end of the wire harness is connected to the terminal block, and the other end of the wire harness is laid along the first wiring groove, the second wiring groove, or the sixth wiring groove and connected to the lamp body.

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