A modular warning light

Abstract

This utility model belongs to the field of warning light technology, specifically a modular warning light, including a wiring module, at least one warning light module, and a connection structure. The wiring module includes a first shell with an open bottom, wiring terminals, an integrally formed first mounting base, and a first contact piece. The warning light module includes a second shell with an open bottom and light transmission, an integrally formed second mounting base, a second contact piece, and a first circuit board. The second shell is the same color as the surface-mount LED. The first circuit board is located on the second mounting base and has first and second conductive contacts. When inserted, the first conductive contact is connected to the second contact piece, and the second conductive contact is electrically connected to the adjacent lower module. The connection structure limits the axial and radial movement between the stacked modules. This utility model achieves rapid assembly, reliable electrical connection, and precise positioning through modular stacking and elastic contact piece electrical connection.

Description

Technical Field

[0001] This utility model belongs to the field of warning light technology, specifically a modular warning light. Background Technology

[0002] With the development of industrial automation technology, various automated equipment and automated production lines are becoming increasingly common. For example, existing CNC machine tools and automated assembly lines require multiple layers of warning lights to indicate the operating status of the equipment. Depending on the actual needs, single-color, dual-color, or tri-color lights are generally used to display the current status of the equipment, with different colors representing different operating or alarm information.

[0003] However, during installation and production, it was found that existing multi-layer warning lights, when requiring dual-color, tri-color, or more specifications, require installers to connect the light-emitting modules of each layer with wires. This not only makes the installation process cumbersome, but also makes the position of the flexible wires inside the module uncontrollable. If the wires are close to the light-transmitting shell, the corresponding position on the shell will be shadowed by the wires when the light is emitted, affecting the light emission effect. Furthermore, existing multi-layer warning lights typically use threaded connections or simple snap-fit ​​connections between layers. Threaded connections have low assembly efficiency and are prone to stripping. The power supply cable of the warning light passes through the base. When the cable is accidentally pulled, the tension is directly transmitted to the terminal block, which can easily lead to loose terminals or cracked solder joints, causing electrical faults. Therefore, a modular warning light is proposed to address the above problems. Utility Model Content

[0004] To address the shortcomings of existing warning lights, a modular warning light is proposed.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a modular warning light of this utility model, including a wiring module, at least one warning light module, and a connection structure disposed between adjacent modules.

[0006] The wiring module includes a first housing with an open bottom, and wiring terminals and a first contact piece disposed within the first housing. The wiring terminals are used for electrical connection with an external wiring harness to introduce external power and control signals. A first mounting base is integrally formed within the first housing, and the first contact piece is assembled on the first mounting base and electrically connected to the wiring terminals, thereby transmitting external electrical signals to the first contact piece.

[0007] At least one warning light module is stacked and assembled on top of the wiring module. Each warning light module includes a second housing with an open bottom, a second contact piece, and a first circuit board disposed within the second housing. A second mounting base is integrally formed within the second housing, and the second contact piece is mounted on the second mounting base. The first circuit board is disposed on the second mounting base and electrically connected to the second contact piece. A surface-mount LED is disposed on the first circuit board as the light source for the warning light. The first circuit board has a first conductive contact and a second conductive contact. When the first circuit board is inserted into the second mounting base, the first conductive contact and the second contact piece become conductive, completing the power supply to this level of the warning light module. The second conductive contact is disposed at the end of the first circuit board near the opening of the second housing and is used to electrically connect to the adjacent lower module, enabling the downward transmission of electrical signals, allowing the lower module to obtain electrical signals through the second conductive contact.

[0008] The connecting structure is disposed between adjacent modules and includes a guide locking block and a guide locking groove that cooperates with the guide locking block. The guide locking block and the guide locking groove cooperate to restrict the axial relative position of adjacent modules and prevent the modules from separating axially. The connecting structure also includes a first locking protrusion and a second locking protrusion. When the guide locking block rotates to the locking position within the guide locking groove, the first locking protrusion and the second locking protrusion cooperate to restrict the radial relative rotation of adjacent modules, thereby achieving angular locking between the modules.

[0009] Preferably, the first contact piece and the second contact piece have the same structure, both including a first contact piece group and a second contact piece group, and each of the first and second contact piece groups includes at least one contact piece body. The contact piece body includes a bent abutment portion, a bent contact portion, and a snap-fit ​​portion for fixing the contact piece body. The bent abutment portion is used to contact the first conductive contact to achieve electrical connection, and the bent contact portion is used to contact the second conductive contact in the adjacent upper module to achieve electrical connection. The bent abutment portions of the first and second contact piece groups are not located at the same end, ensuring that when the circuit board is inserted, the two sets of contacts can reliably contact their corresponding contacts.

[0010] Preferably, the contact body has an inclined arc-shaped structure, with one end of its top surface higher than the other end, to increase the contact pressure with the second conductive contact and improve the reliability of the electrical connection. The inclination direction of the contact body is opposite to the rotation direction during the assembly of adjacent modules. During the module screwing assembly process, relative sliding occurs between the contact body and the conductive contact, and they are gradually pressed together, using the assembly rotation action to enhance the contact pressure. The inclination directions of the contact bodies of the first contact group and the second contact group are opposite, ensuring that both groups of contacts can generate reliable elastic contact during the screwing process.

[0011] Preferably, the first circuit board is fixedly mounted on the second mounting base by a fixing part. The fixing part includes a limiting guide groove adapted to the first circuit board for guiding the circuit board into place and limiting its lateral displacement; a claw that cooperates with a positioning hole on the first circuit board for limiting and fixing the circuit board in the insertion direction; and a support arm disposed at one end of the first circuit board near the opening end of the second housing. The inner wall of the opening end of the second housing has a positioning groove that cooperates with the support arm. The cooperation between the support arm and the positioning groove enables precise angular positioning of the circuit board and prevents the circuit board from rotating.

[0012] Preferably, the connection structure includes a first mating groove formed on the inner wall of the open end of a module and a second mating groove formed on the outer wall of the other end of the module. The guide locking block is disposed on the inner wall of the first mating groove, and the guide locking groove is formed on the inner wall of the second mating groove. A movable groove is formed on the inner wall of the second mating groove, the first locking protrusion is disposed in the movable groove, and the second locking protrusion is disposed in the first mating groove. When the guide locking block rotates to the locking position within the guide locking groove, the second locking protrusion passes over the first locking protrusion to restrict the radial relative rotation of adjacent modules. The interference fit between the protrusions generates locking resistance, preventing the modules from rotating out of control.

[0013] Preferably, the second outer shell is made of a light-transmitting material and its color is consistent with the color of the patch LED light source in the warning light module, so that the warning light module can transmit light to display its own color configuration, which facilitates quick identification during equipment debugging and maintenance.

[0014] Preferably, the system further includes a buzzer module, mounted on the top of the uppermost warning light module. The buzzer module includes a third housing with an open bottom and a second circuit board disposed within the third housing. A buzzer is mounted on the second circuit board for emitting an audible alarm signal. A third conductive contact is located at the bottom of the second circuit board, and an opening is provided on the third housing for the sound of the buzzer to propagate. The third conductive contact is electrically connected to the bent contact portion in the adjacent lower module, enabling power supply and control signal transmission for the buzzer module.

[0015] Preferably, the system also includes a base, which is connected to the bottom of the wiring module via the connecting structure. The base has a channel for cables to pass through, for introducing external power lines and control lines.

[0016] Preferably, the base is provided with an anti-pull component. The anti-pull component includes a retaining ring, the diameter of which is larger than the diameter of the channel to prevent the retaining ring from coming out of the channel. The retaining ring has two opposing locking blocks, with locking teeth between the opposing surfaces of the two locking blocks for gripping the cable sheath. The distance between the opposing surfaces of the two locking blocks is smaller than the cable diameter, causing the locking blocks to elastically deform and grip the cable when it passes through. When the cable is subjected to outward pulling force, the clamping force of the locking teeth automatically increases, while the retaining ring abuts against the inside of the channel, preventing the cable from being pulled out, thereby protecting the terminals from tensile damage.

[0017] Preferably, the first mounting base and the second mounting base are respectively provided with mounting structures for fixing the first contact piece and the second contact piece. The mounting structure includes a mounting groove, and both ends of the inner wall of the mounting groove are provided with locking holes that cooperate with the locking part. The locking part of the contact piece body is inserted into the locking holes to realize the quick fixing and assembly of the contact piece, without the need for screws or other fasteners, which facilitates automated production and on-site maintenance and replacement.

[0018] The beneficial effects of this utility model are: Multiple modules are stacked and assembled. The second conductive contact of the lower module makes contact with the bent contact part of the second contact piece of the upper module to complete the electrical connection between adjacent modules. The flexible contact piece structure not only facilitates the wireless electrical connection between modules, but also eliminates the need for additional soldering or plugging as with flexible wires.

[0019] The warning light module is assembled with adjacent modules through a connecting structure. After the guide locking block is inserted into the guide locking groove and screwed in, the first locking protrusion and the second locking protrusion cross each other and lock, achieving axial and radial limiting. The contact piece body is in the shape of an inclined arc and the inclination direction is opposite to the screwing direction. During the screwing and locking process, the contact pressure with the conductive contact is naturally increased, so that when the installer screws in the assembly module, he can naturally and smoothly complete the pressing connection and mechanical locking of the elastic contact piece. It is very convenient and quick, and the connection is reliable and prevents loosening.

[0020] The first circuit board achieves screwless quick fixation through the limiting guide groove, the claw and positioning hole, and the support arm and positioning groove. The base is equipped with an anti-pull component consisting of a retaining ring and a locking block. When the cable is pulled, the claws automatically bite and the retaining ring stops against the inner wall of the channel. The above structures work together to realize the modular quick assembly, reliable electrical connection and precise positioning of the multi-layer warning light. Attached Figure Description

[0021] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings: Figure 1This is an exploded three-dimensional view of the overall structure of this utility model; Figure 2 This is a bottom-view perspective view of the warning light module of this utility model; Figure 3 This is a top view of the warning light module of this utility model, as well as a partial enlarged view of the location of the second mounting base; Figure 4 This is a bottom-view perspective view of the warning light module of this utility model, as well as a partial enlarged view of the fixing part; Figure 5 This is a three-dimensional structural view of the contact body of this utility model; Figure 6 This is a three-dimensional view of the disassembled structure of the wiring module and the base of this utility model; Figure 7 This is a partially enlarged perspective view of the first and second contact groups on the warning light module of this utility model; Figure 8 This is a cross-sectional plan view of the overall structure of this utility model; Figure 9 This is a three-dimensional structural view of the entire utility model; Legend: 1. Wiring module; 2. Warning light module; 3. Buzzer module; 4. First housing; 5. Wiring terminal; 6. First mounting base; 7. First contact piece; 8. Second housing; 9. Second mounting base; 10. Second contact piece; 11. First circuit board; 12. Limiting guide groove; 13. Positioning hole; 14. Claw; 15. First conductive contact; 16. Support arm; 17. Second conductive contact; 18. Positioning groove; 19. First contact piece group; 20. Second contact piece group; 21. Contact piece body; 11. Bending contact part; 212. Bending contact part; 213. Snap-fit ​​part; 22. SMD LED; 23. First mating groove; 24. Second mating groove; 25. Guide locking block; 26. Guide locking groove; 27. Movable groove; 28. First locking protrusion; 29. ​​Second locking protrusion; 30. Mounting groove; 31. Snap hole; 32. Base; 33. Retaining ring; 34. Snap block; 35. Third housing; 36. Second circuit board; 37. Third conductive contact; 38. Buzzer; 39. Transmission port. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0023] Specific implementation examples are given below.

[0024] Please see Figures 1-9 The present invention provides a modular warning light, comprising a wiring module 1, at least one warning light module 2, and a connection structure disposed between adjacent modules. The wiring module 1 includes a first housing 4 with an open bottom end. The first housing 4 is equipped with a wiring terminal 5 for electrical connection with an external wiring harness. The first housing 4 is integrally formed with a first mounting base 6. The first mounting base 6 is equipped with a first contact piece 7 that is electrically connected to the wiring terminal 5. External power lines and control lines are introduced through the wiring terminal 5 and transmitted upward to the stacked warning light modules 2 via the first contact piece 7. The warning light module 2 is stacked on top of the wiring module 1. One or more warning light modules 2 can be stacked according to actual application requirements. Each module can be configured with different colored surface mount LEDs 22 to achieve multi-layer and multi-color indication function.

[0025] The warning light module 2 includes a second housing 8 with an opening at the bottom. The second housing 8 is made of a light-transmitting material and its color is consistent with the color of the surface-mount LED 22 light source in the warning light module 2, so that the warning light module 2 can transmit light and display its own color.

[0026] The second housing 8 has an integrally formed second mounting base 9, on which a second contact piece 10 is mounted. The second mounting base 9 is provided with a first circuit board 11 electrically connected to the second contact piece 10. The first circuit board 11 is disposed on the second mounting base 9 and has a surface-mount LED 22 as the light source for the warning light of this layer. The first circuit board 11 has a first conductive contact 15 and a second conductive contact 17. When the first circuit board 11 is inserted into the second mounting base 9, the first conductive contact 15 and the second contact piece 10 are connected to transmit electrical signals. The second conductive contact 17 is disposed at one end of the first circuit board 11 near the opening of the second housing 8 and is used to electrically connect with the adjacent lower module to realize the transmission of electrical signals, so that the adjacent module can obtain electrical signals through the second conductive contact 17.

[0027] The first circuit board 11 is fixedly mounted on the second mounting base 9 by a fixing part. The fixing part includes a limiting guide groove 12 adapted to the first circuit board 11. The limiting guide groove 12 is opened on the second mounting base 9 to guide the insertion of the first circuit board 11 and limit its lateral displacement. The fixing part also includes a claw 14 that cooperates with the positioning hole 13 on the first circuit board 11. The claw 14 is disposed on the second mounting base 9. When the first circuit board 11 is inserted into the position, the claw 14 engages in the positioning hole 13 to limit and fix the first circuit board 11 in the insertion direction and prevent it from coming out in the opposite direction. The fixing part also includes a support arm 16 disposed on the first circuit board 11 near the opening end of the second housing 8. The inner wall of the opening end of the second housing 8 is provided with a positioning groove 18 that cooperates with the support arm 16. During assembly, the support arm 16 is inserted into the positioning groove 18 to achieve angular positioning of the first circuit board 11, prevent the first circuit board 11 from rotating around the insertion direction, and ensure the positional accuracy of the first conductive contact 15 and the second conductive contact 17.

[0028] The first contact piece 7 and the second contact piece 10 have the same structure. Both include a first contact piece group 19 and a second contact piece group 20. Both the first contact piece group 19 and the second contact piece group 20 include at least one contact piece body 21. In this embodiment, each group includes three contact piece bodies 21, which correspond to the positive power supply, the negative power supply, and the control signal line, respectively.

[0029] The contact body 21 includes a bent abutment portion 211, a bent contact portion 212, and a snap-fit ​​portion 213 for fixing the contact body 21. The bent abutment portion 211 is used to contact the first conductive contact 15 to achieve electrical connection and transmit the electrical signal from the circuit board of this layer to the contact body 21. The bent contact portion 212 is used to contact the second conductive contact 17 in the adjacent upper module to achieve electrical connection and transmit the electrical signal upward. The bent abutment portions 211 of the first contact group 19 and the second contact group 20 are not located at the same end. The staggered design ensures that when the first circuit board 11 is inserted, the two groups of contacts can reliably contact the conductive contacts at the corresponding positions.

[0030] Furthermore, the contact body 21 has an inclined arc-shaped structure, with one end of its top surface being higher than the other end. This inclined design causes the contact body 21 to undergo elastic deformation when it comes into contact with the conductive contact, thereby increasing the contact pressure with the second conductive contact 17 and ensuring the reliability of the electrical connection. The inclination direction of the contact body 21 is opposite to the rotation direction during the assembly of adjacent modules. During the module screwing assembly process, the contact body 21 and the conductive contact slide relative to each other and are gradually pressed together. The assembly rotation action further enhances the contact pressure, forming a self-tightening electrical connection. The inclination directions of the contact bodies 21 of the first contact group 19 and the second contact group 20 are opposite, ensuring that both groups of contacts can generate reliable elastic contact and are subjected to balanced force during the screwing process.

[0031] Furthermore, the connection structure is disposed between adjacent modules to achieve rapid mechanical connection and positioning between modules. The connection structure includes a first docking groove 23 formed on the inner wall of the open end of a module and a second docking groove 24 formed on the outer wall of the other end of the module. A guide locking block 25 is provided on the inner wall of the first docking groove 23, and a guide locking groove 26 that cooperates with the guide locking block 25 is formed on the inner wall of the second docking groove 24. During assembly, the first docking groove 23 of the upper module is aligned with the second docking groove 24 of the lower module, so that the guide locking block 25 is inserted into the guide locking groove 26. The guide locking block 25 and the guide locking groove 26 cooperate to limit the axial relative position of adjacent modules and prevent the modules from separating along the axial direction. The inner wall of the second docking groove 24 is provided with a movable groove 27, and a first locking protrusion 28 is provided in the movable groove 27. A second locking protrusion 29 is provided in the first docking groove 23. When the guide locking block 25 rotates to the locking position in the guide locking groove 26, the second locking protrusion 29 passes over the first locking protrusion 28 to restrict the radial relative rotation of adjacent modules. During the screwing process, the second locking protrusion 29 presses against the first locking protrusion 28. When screwed in place, the second locking protrusion 29 passes over the first locking protrusion 28 and is locked behind it, forming an interference lock to prevent the module from rotating and loosening on its own.

[0032] This utility model also includes a buzzer module 3, which is mounted on the top of the uppermost warning light module 2. The buzzer module 3 includes a third housing 35 with an open bottom. A second circuit board 36 is mounted inside the third housing 35. A third conductive contact 37 is provided at the bottom of the second circuit board 36. The third conductive contact 37 is electrically connected to the bent contact portion 212 in the adjacent lower warning light module 2 to realize the power supply and control signal transmission of the buzzer module 3. A buzzer 38 is also provided on the second circuit board 36 for emitting an audible alarm signal. A transmission port 39 is provided on the third housing 35 for the sound of the buzzer 38 to propagate, ensuring that the sound is effectively transmitted.

[0033] Furthermore, the bottom end of the wiring module 1 is connected to the base 32 through the connection structure. The base 32 is provided with a channel for cables to pass through. External power lines and control lines pass through this channel and are connected to the wiring terminal 5. The base 32 is equipped with an anti-pull component to prevent the cable from being disconnected from the terminal 5 when pulled by external force. The anti-pull component includes a retaining ring 33, the diameter of which is larger than the diameter of the channel, ensuring that the retaining ring 33 cannot be pulled out of the channel. The retaining ring 33 is provided with two opposing locking blocks 34, and locking teeth are provided between the opposing surfaces of the two locking blocks 34 to clamp the cable sheath. The distance between the opposing surfaces of the two locking blocks 34 is smaller than the diameter of the cable, so that when the cable passes through, the two locking blocks 34 will elastically deform and hold the cable tightly. When the cable is subjected to outward pulling force, the clamping force of the locking teeth increases, and at the same time, the retaining ring 33 abuts against the inside of the channel to prevent the cable from being pulled out, thus ensuring the reliability of the electrical connection.

[0034] Furthermore, the first mounting base 6 and the second mounting base 9 are respectively provided with mounting structures for fixing the first contact piece 7 and the second contact piece 10. The mounting structure includes a mounting groove 30. Both ends of the inner wall of the mounting groove 30 are provided with locking holes 31 that cooperate with the locking part 213. The locking part 213 is integrally stamped. During assembly, the locking part 213 of the contact piece body 21 is aligned with the locking hole 31 and pressed in. The locking part 213 is inserted into the locking hole 31 to realize the quick fixing and assembly of the contact piece without the need for screws or other fasteners, which is convenient for automated production.

[0035] Furthermore, depending on the actual application requirements, two, three, or more warning light modules 2 can be stacked. Each warning light module 2 can be configured with different colored surface-mount LEDs 22, such as red, yellow, green, and blue. By controlling the on / off combinations of the LEDs in each layer, a variety of status indication functions can be achieved. The warning light modules 2 in each layer are assembled sequentially through the connection structure. Electrical signals are transmitted layer by layer through the contact pieces, and mechanical connections are achieved by the engagement and locking of the guide locking block 25 and the guide locking groove 26.

[0036] Furthermore, for applications requiring only light indication, the buzzer module 3 can be omitted, and the top of the uppermost warning light module 2 can be sealed with a cap. For applications requiring both audible and visual alarms, the buzzer module 3 is installed at the top, and the third conductive contact 37 of the buzzer module 3 makes contact with the bent contact portion 212 of the lower warning light module 2 to achieve the audible alarm function.

[0037] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0038] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A modular warning light, characterized in that, include: Wiring module (1), the wiring module (1) includes a first housing (4) with an open bottom end and a wiring terminal (5) and a first contact piece (7) disposed in the first housing (4). The wiring terminal (5) is used to electrically connect with an external wire harness. A first mounting base (6) is integrally formed in the first housing (4). The first contact piece (7) is assembled on the first mounting base (6) and electrically connected to the wiring terminal (5). At least one warning light module (2) is stacked and assembled on top of the wiring module (1). The warning light module (2) includes a second housing (8) with an open bottom end, a second contact piece (10) and a first circuit board (11) disposed in the second housing (8). A second mounting base (9) is integrally formed in the second housing (8). The second contact piece (10) is assembled on the second mounting base (9). The first circuit board (11) is disposed on the second mounting base (9) and electrically connected to the second contact piece (10). A surface-mount LED (22) is disposed on the first circuit board (11). The first circuit board (11) has a first conductive contact (15) and a second conductive contact (17). When the first circuit board (11) is inserted into the second mounting base (9), the first conductive contact (15) and the second contact piece (10) are connected. The second conductive contact (17) is disposed at one end of the first circuit board (11) near the opening end of the second housing (8) and is used to electrically connect with the adjacent lower module. The connection structure is provided between adjacent modules. The connection structure includes a guide lock block (25) and a guide lock groove (26) that cooperates with the guide lock block (25). The guide lock block (25) and the guide lock groove (26) cooperate to restrict the axial relative position of adjacent modules. The connection structure also includes a first locking protrusion (28) and a second locking protrusion (29). When the guide lock block (25) rotates to the locking position in the guide lock groove (26), the first locking protrusion (28) and the second locking protrusion (29) cooperate to restrict the radial relative rotation of adjacent modules.

2. A modular warning light according to claim 1, characterized in that: The first contact piece (7) and the second contact piece (10) have the same structure. Both include a first contact piece group (19) and a second contact piece group (20). Both the first contact piece group (19) and the second contact piece group (20) include at least one contact body (21). The contact body (21) includes a bent abutment portion (211), a bent contact portion (212), and a snap-fit ​​portion (213) for fixing the contact body (21). The bent abutment portion (211) is used to contact the first conductive contact (15) to achieve electrical connection. The bent contact portion (212) is used to contact the second conductive contact (17) in the adjacent upper module to achieve electrical connection. The bent abutment portions (211) of the first contact piece group (19) and the second contact piece group (20) are not located at the same end.

3. A modular warning light according to claim 2, characterized in that: The contact body (21) has an inclined arc-shaped structure, with one end of its top surface being higher than the other end, so as to increase the contact pressure with the second conductive contact (17), and the inclination direction of the contact body (21) is opposite to the rotation direction when assembling adjacent modules; the inclination direction of the contact body (21) of the first contact group (19) and the second contact group (20) is opposite to that of the contact body (21).

4. A modular warning light according to claim 1, characterized in that: The first circuit board (11) is fixedly mounted on the second mounting base (9) by a fixing part. The fixing part includes a limiting guide groove (12) adapted to the first circuit board (11), a claw (14) cooperating with the positioning hole (13) on the first circuit board (11), and a support arm (16) disposed on the first circuit board (11) near the opening end of the second housing (8). The inner wall of the opening end of the second housing (8) is provided with a positioning groove (18) cooperating with the support arm (16).

5. A modular warning light according to claim 1, characterized in that: The connection structure includes a first docking groove (23) formed on the inner wall of the opening end of a module and a second docking groove (24) formed on the outer wall of the other end of the module. The guide locking block (25) is disposed on the inner wall of the first docking groove (23), and the guide locking groove (26) is formed on the inner wall of the second docking groove (24). The inner wall of the second docking groove (24) is provided with a movable groove (27). The first locking protrusion (28) is disposed in the movable groove (27), and the second locking protrusion (29) is disposed in the first docking groove (23). When the guide locking block (25) rotates to the locking position in the guide locking groove (26), the second locking protrusion (29) passes over the first locking protrusion (28) to restrict the radial relative rotation of adjacent modules.

6. A modular warning light according to claim 1, characterized in that: The second outer shell (8) is made of a light-transmitting material and its color is consistent with the color of the patch LED (22) light source in the warning light module (2).

7. A modular warning light according to claim 2, characterized in that: It also includes a buzzer module (3), which is mounted on the top of the warning light module (2) at the top. The buzzer module (3) includes a third housing (35) with an open bottom and a second circuit board (36) disposed inside the third housing (35). A buzzer (38) is disposed on the second circuit board (36). A third conductive contact (37) is disposed at the bottom of the second circuit board (36). A transmission port (39) for the sound of the buzzer (38) is opened on the third housing (35). The third conductive contact (37) is electrically connected to the bent contact part (212) in the adjacent lower module.

8. A modular warning light according to claim 1, characterized in that: It also includes a base (32), which is connected to the bottom of the wiring module (1) through the connection structure, and the base (32) is provided with a channel for cables to pass through.

9. A modular warning light according to claim 8, characterized in that: The base (32) is provided with an anti-pull component, which includes a retaining ring (33). The diameter of the retaining ring (33) is larger than the diameter of the channel. The retaining ring (33) is provided with two opposing blocks (34). The opposing surfaces of the two blocks (34) are provided with locking teeth. The distance between the opposing surfaces of the two blocks (34) is smaller than the diameter of the cable.

10. A modular warning light according to claim 2, characterized in that: The first mounting base (6) and the second mounting base (9) are respectively provided with mounting structures for fixing the first contact piece (7) and the second contact piece (10). The mounting structure includes a mounting groove (30), and both ends of the inner wall of the mounting groove (30) are provided with locking holes (31) that cooperate with the locking part (213).

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