Safety warning device for municipal drainage well lid

Abstract

The utility model provides a municipal drainage well lid safety warning device, which belongs to the technical field of public safety and comprises a fixed frame, a sliding frame slidably sleeved on the outer surface of the fixed frame, a mounting frame fixedly connected to the top of the sliding frame and a plurality of warning screens fixedly mounted on the inner wall of the mounting frame through bearings. The display mechanism comprises a hand wheel arranged on the outer side of the sliding frame, a connecting shaft fixedly connected to the inner surface of the hand wheel, a first bevel gear fixedly arranged at the penetrating end of the connecting shaft in a sleeving mode, and a second bevel gear meshed with the outer surface of the first bevel gear. Through cooperation of all parts in the display mechanism, the height of the warning screen can be flexibly adjusted, meanwhile, the warning screen can intermittently rotate and display different faces, it is ensured that pedestrians and vehicles approaching a dangerous area from different angles can see warning information of the different faces of the warning screen more clearly, and the warning effect is improved. The information transmission range is expanded while the information visibility is improved.

Description

Technical Field

[0001] This utility model belongs to the field of public safety technology, specifically relating to a safety warning device for municipal drainage well covers. Background Technology

[0002] In municipal drainage well cover safety warning devices, warning screens often use high-brightness light-emitting diodes (LEDs) to provide clearly visible warning information even at night or in severe weather conditions (such as heavy fog, heavy rain, etc.), ensuring that pedestrians and vehicles can notice potential dangers in time. Well-designed warning screens not only serve as safety reminders, but can also be integrated into the urban landscape as part of urban infrastructure, helping to enhance the overall image of the city.

[0003] Some existing warning screens are designed with a fixed angle, which is difficult to change once installed. For situations where the information display location needs to be changed frequently, such as road construction or temporary events, each change may require replanning and reinstalling the warning screen, which not only increases time and labor costs, but may also lead to repeated investment in new equipment. In addition, some warning screens can only provide information from one direction, which may make it difficult for pedestrians and vehicles approaching from different angles to effectively receive the warning information from other angles of the screen. Utility Model Content

[0004] The purpose of this utility model is to provide a safety warning device for municipal drainage well covers, which aims to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A safety warning device for municipal drainage well covers includes a warning sign, a fixed frame, a sliding frame slidably sleeved on the outer surface of the fixed frame, a mounting frame fixedly connected to the top of the sliding frame, and a plurality of warning screens fixedly mounted on the inner wall of the mounting frame by bearings.

[0007] The display mechanism includes a handwheel disposed on the outside of the sliding frame, a connecting shaft fixedly connected to the inner surface of the handwheel, a first bevel gear fixedly sleeved on the through end of the connecting shaft, a second bevel gear meshing with the outer surface of the first bevel gear, a threaded rod fixedly connected to the outer end face of the second bevel gear, an internal threaded block threadedly connected to the outer surface of the threaded rod, a support plate fixedly connected to the inner wall of the sliding frame and used in conjunction with the threaded rod, and a reversing component used to intermittently rotate the warning screen.

[0008] In a preferred embodiment of this utility model, the outer surface of the internal threaded block is fixedly connected to the inner wall of the fixed frame, and a rotating bearing sleeve is installed at the connection between the threaded rod and the support plate.

[0009] As a preferred embodiment of the present invention, the reversing assembly includes a servo motor adapted to be installed inside the mounting frame, a first pulley fixedly installed at the output end of the servo motor via a coupling, a belt sleeved on the outer surface of the first pulley, and a second pulley sleeved on the other end of the belt.

[0010] As a preferred embodiment of the present invention, the reversing assembly further includes a support rod fixedly connected to the inner surface of the second pulley, a plurality of turntables fixedly sleeved on the outer surface of the support rod, and an escapement notch formed on the outer surface of the turntables.

[0011] As a preferred embodiment of this utility model, the reversing assembly further includes a driven protrusion engaged with the inner wall of the escape notch and a connecting post fixedly connected to the inner surface of the driven protrusion and used in conjunction with the warning screen.

[0012] In a preferred embodiment of this utility model, both ends of the turntable are fixedly mounted to the inner wall of the mounting frame by bearings, and a plurality of the turntables are arranged in a linear array on the outer surface of the second pulley.

[0013] In a preferred embodiment of this utility model, the outer end face of the connecting column is fixedly connected to the bottom of the warning screen, and a rotating bearing sleeve is installed at the connection between the connecting column and the mounting frame.

[0014] Compared with the prior art, the beneficial effects of this utility model are: through the cooperation of various components in the display mechanism, not only can the height of the warning screen be flexibly adjusted, but the warning screen can also be rotated intermittently and different sides can be displayed, ensuring that pedestrians and vehicles approaching the danger zone from different angles can see the warning information on different sides of the warning screen more clearly, so as to increase the visibility of information and expand the range of information dissemination. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the overall internal structure of this utility model;

[0018] Figure 3 This utility model Figure 2 A magnified view of the structure at point A in the middle;

[0019] Figure 4 This utility model Figure 2 A magnified structural diagram of a portion of point B in the middle section;

[0020] Figure 5 This is a partial structural diagram of the commutation component in this utility model.

[0021] In the diagram: 100, warning sign; 101, fixed frame; 102, sliding frame; 103, mounting frame; 104, warning screen; 200, display mechanism; 201, handwheel; 202, connecting shaft; 203, first bevel gear; 204, second bevel gear; 205, threaded rod; 206, internal threaded block; 207, support plate; 208, reversing assembly; 208a, servo motor; 208b, first pulley; 208c, belt; 208d, second pulley; 208e, support rod; 208f, turntable; 208g, escapement notch; 208h, driven protrusion; 208i, connecting column. Detailed Implementation

[0022] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0023] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0024] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0025] Example

[0026] Reference Figures 1-5 This embodiment of the present invention provides a safety warning device for municipal drainage well covers, which can flexibly adjust the height of the warning screen 104 while intermittently rotating and displaying different sides of the warning screen 104.

[0027] The warning sign 100 includes a fixed frame 101, a sliding frame 102 that is slidably sleeved on the outer surface of the fixed frame 101, a mounting frame 103 that is fixedly connected to the top of the sliding frame 102, and a number of warning screens 104 that are fixedly mounted on the inner wall of the mounting frame 103 by bearings.

[0028] It should be noted that the fixed frame 101 is used to provide the basic support structure for the entire device, the sliding frame 102 allows the mounting frame 103 and the warning screen 104 to be vertically moved and adjusted, the mounting frame 103 is used to install and fix the warning screen 104 so that it can rotate while displaying information, the warning screen 104 displays warning information through high-brightness LEDs to remind pedestrians and vehicles to pay attention to the status of the manhole cover, and different sides of the warning screen 104 display different warning information.

[0029] The display mechanism 200 includes a handwheel 201 disposed on the outside of the sliding frame 102, a connecting shaft 202 fixedly connected to the inner surface of the handwheel 201, a first bevel gear 203 fixedly sleeved on the through end of the connecting shaft 202, a second bevel gear 204 meshing with the outer surface of the first bevel gear 203, a threaded rod 205 fixedly connected to the outer end face of the second bevel gear 204, an internal threaded block 206 threadedly connected to the outer surface of the threaded rod 205, a support plate 207 fixedly connected to the inner wall of the sliding frame 102 and used in conjunction with the threaded rod 205, and a reversing assembly 208 used in conjunction with the intermittent rotating warning screen 104.

[0030] It should be noted that rotating the handwheel 201 can drive the connecting shaft 202 and the first bevel gear 203 to rotate. Through the cooperation of the first bevel gear 203 and the second bevel gear 204, the direction of the force is changed from horizontal rotation to vertical rotation, and the threaded rod 205 rotates. As the threaded rod 205 rotates, it drives the internal thread block 206 to move vertically, thereby causing the sliding frame 102 to slide along the fixed frame 101. The support plate 207 is used to provide support for the threaded rod 205 to ensure its stable rotation.

[0031] Specifically, the outer surface of the internal threaded block 206 is fixedly connected to the inner wall of the fixed frame 101, and a rotating bearing sleeve is installed at the connection between the threaded rod 205 and the support plate 207.

[0032] Furthermore, the reversing assembly 208 includes a servo motor 208a adapted to be installed inside the mounting frame 103, a first pulley 208b fixedly installed at the output end of the servo motor 208a via a coupling, a belt 208c sleeved on the outer surface of the first pulley 208b, and a second pulley 208d sleeved on the other end of the belt 208c.

[0033] Preferably, the reversing assembly 208 further includes a support rod 208e fixedly connected to the inner surface of the second pulley 208d, a plurality of turntables 208f fixedly sleeved on the outer surface of the support rod 208e, and an escapement notch 208g formed on the outer surface of the turntables 208f.

[0034] It should be noted that the reversing assembly 208 also includes a driven protrusion 208h that engages with the inner wall of the escapement notch 208g, and a connecting post 208i that is fixedly connected to the inner surface of the driven protrusion 208h and used in conjunction with the warning screen 104.

[0035] It should be further explained that the servo motor 208a is used to drive the entire reversing assembly 208. Through the cooperation of the first pulley 208b, the belt 208c and the second pulley 208d, the power of the servo motor 208a is transmitted to the support rod 208e, so that the support rod 208e drives multiple turntables 208f to rotate synchronously. When the escape notch 208g on the surface of the turntable 208f rotates to the position of engaging with the protrusion 208h, it can drive the protrusion 208h, the connecting post 208i and the warning screen 104 to rotate. After the escape notch 208g rotates to the position of disengaging from the protrusion 208h, the driven protrusion 208h brakes the protrusion 208h, so that the protrusion 208h, the connecting post 208i and the warning screen 104 rotate and remain for a period of time.

[0036] Furthermore, both ends of the turntable 208f are fixedly mounted to the inner wall of the mounting frame 103 by bearings, and several turntables 208f are arranged in a linear array on the outer surface of the second pulley 208d.

[0037] Specifically, the outer end face of the connecting post 208i is fixedly connected to the bottom of the warning screen 104, and a rotating bearing sleeve is installed at the connection between the connecting post 208i and the mounting frame 103.

[0038] In use, by manually turning the handwheel 201, the connecting shaft 202 is rotated and the first bevel gear 203 is rotated accordingly. The first bevel gear 203 meshes with the second bevel gear 204, changing the direction of the force from horizontal to vertical. This causes the second bevel gear 204 to drive the threaded rod 205 to rotate. As the threaded rod 205 rotates, the internal threaded block 206 moves vertically along the thread direction. Since the outer surface of the internal threaded block 206 is fixedly connected to the inner wall of the fixed frame 101, the sliding frame 102 slides up and down along the fixed frame 101, so as to achieve the effect of flexibly adjusting the height of the mounting frame 103 and the warning screen 104.

[0039] Meanwhile, the reversing assembly 208 is responsible for enabling the warning screen 104 to rotate intermittently to display different sides. After the servo motor 208a starts, it transmits power to the first pulley 208b through the coupling. The first pulley 208b drives the second pulley 208d to rotate through the belt 208c. The second pulley 208d drives multiple turntables 208f and the escapement notch 208g to rotate synchronously through the support rod 208e. When the escapement notch 208g rotates to the position where it contacts the connecting post 208i fixed on the driven protrusion 208h, it will drive the driven protrusion 208h, the connecting post 208i connected to it, and the warning screen 104 to rotate. When the escapement notch 208g rotates away from the driven protrusion 208h, the driven protrusion 208h will brake itself, causing the warning screen 104 to stay in a certain position for a period of time. Then it will be pushed to rotate again by the next escapement notch 208g, so as to achieve the effect of the warning screen 104 rotating intermittently to display different sides.

[0040] In summary, through the coordination of various components in the display mechanism 200, not only can the height of the warning screen 104 be flexibly adjusted, but the warning screen 104 can also be rotated intermittently and display different sides, ensuring that pedestrians and vehicles approaching the danger zone from different angles can see the warning information on different sides of the warning screen 104 more clearly, thereby increasing the visibility of information and expanding the range of information dissemination.

[0041] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape and proportion of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0042] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.

[0043] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0044] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A safety warning device for municipal drainage well covers, characterized in that: include, The warning sign (100) includes a fixed frame (101), a sliding frame (102) slidably sleeved on the outer surface of the fixed frame (101), a mounting frame (103) fixedly connected to the top of the sliding frame (102), and a number of warning screens (104) fixedly mounted on the inner wall of the mounting frame (103) by bearings. The display mechanism (200) includes a handwheel (201) disposed on the outside of the sliding frame (102), a connecting shaft (202) fixedly connected to the inner surface of the handwheel (201), a first bevel gear (203) fixedly sleeved on the through end of the connecting shaft (202), a second bevel gear (204) meshing with the outer surface of the first bevel gear (203), a threaded rod (205) fixedly connected to the outer end face of the second bevel gear (204), an internal threaded block (206) threadedly connected to the outer surface of the threaded rod (205), a support plate (207) fixedly connected to the inner wall of the sliding frame (102) and used in conjunction with the threaded rod (205), and a reversing assembly (208) used in conjunction with the intermittent rotation of the warning screen (104). The reversing assembly (208) includes an escapement notch (208g) formed on the outer surface of the turntable (208f) and a driven protrusion (208h) engaged with the inner wall of the escapement notch (208g). The reversing assembly (208) uses the cooperation between the escapement notch (208g) and the driven protrusion (208h) to brake and stop the warning screen (104) after rotation.

2. The safety warning device for a municipal drainage cover according to claim 1, characterized in that: The outer surface of the internal threaded block (206) is fixedly connected to the inner wall of the fixed frame (101), and a rotating bearing sleeve is installed at the connection between the threaded rod (205) and the support plate (207).

3. The safety warning device for a municipal drain cover according to claim 2, characterized in that: The reversing assembly (208) includes a servo motor (208a) adapted to be installed inside the mounting frame (103), a first pulley (208b) fixedly installed at the output end of the servo motor (208a) via a coupling, a belt (208c) sleeved on the outer surface of the first pulley (208b), and a second pulley (208d) sleeved on the other end of the belt (208c).

4. The safety warning device for a municipal drain cover according to claim 3, characterized in that: The reversing assembly (208) further includes a support rod (208e) fixedly connected to the inner surface of the second pulley (208d), a plurality of turntables (208f) fixedly sleeved on the outer surface of the support rod (208e), and an escapement notch (208g) opened on the outer surface of the turntable (208f).

5. A safety warning device for a municipal drainage cover as claimed in claim 4, wherein: The reversing assembly (208) also includes a driven protrusion (208h) engaged with the inner wall of the escape notch (208g) and a connecting post (208i) fixedly connected to the inner surface of the driven protrusion (208h) and used in conjunction with the warning screen (104).

6. A safety warning device for municipal drainage well covers according to claim 4, characterized in that: Both ends of the turntable (208f) are fixedly installed on the inner wall of the mounting frame (103) by bearings, and a plurality of the turntables (208f) are arranged in an array along the axial direction of the support rod (208e).

7. The safety warning device for a municipal drain cover according to claim 5, characterized in that: The outer end surface of the connecting column (208i) is fixedly connected with the bottom of the warning screen (104), and a bearing sleeve matched in rotation is installed at the connecting position of the connecting column (208i) and the mounting frame (103).

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