Traffic engineering management bidding propaganda device

Abstract

The utility model relates to a kind of traffic engineering management is used in the propaganda device of bidding, belong to traffic engineering management propaganda technical field.The traffic engineering management is used in the propaganda device of bidding, including: substrate, outer frame, cover, guide shaft and drive assembly, drive assembly is located at the both ends of horizontal sliding guide shaft, to facilitate the movement of drive guide shaft, the surface of two guide shafts is movably provided with clamping plate;Fixed guide shaft is fixed in the inside of outer frame, sliding guide shaft, and with the guide rail of outer frame inner surface connection, realize horizontal sliding, the surface of two guide shafts is all set with the clamping plate of polyformaldehyde material, diamond non-slip grain is equipped in clamping plate inner wall, through the bolt inserted in the inside, limit the propaganda poster, realize quick clamping, slogan time reduction is replaced singly, compared with traditional mode, efficiency is improved, this fixing mode is compared to traditional bonding mode, it is convenient for later replacement and maintenance cleaning, improve the service life of bulletin board.

Description

Technical Field

[0001] This utility model relates to the field of publicity technology for traffic engineering management, and in particular to a publicity device for bidding and tendering in traffic engineering management. Background Technology

[0002] Bidding and tendering management refers to the process by which a tendering party, for transactions such as engineering construction, goods sales, and labor services, announces the conditions and requirements for selecting suppliers in advance, attracting others to undertake the work. Several or more bidders express their willingness to participate in the competitive bidding, and the tendering party selects the winning bidder according to prescribed procedures and methods. Construction project bidding refers to an economic activity in which, before awarding a construction project, the tendering party publicly invites or solicits bids from bidders, who submit quotations based on the tendering party's intentions and requirements. The bids are then opened on a chosen date to select the winning bidder.

[0003] In the process of posting promotional slogans for transportation engineering bidding, the traditional adhesive fixing method makes it difficult to clean glue residue when the bulletin board is reused, the maintenance time is long, the labor cost is increased, the installation efficiency is reduced, the frequent pasting causes scratches on the surface of the bulletin board, and the service life of the equipment is shortened. These problems directly affect the timeliness of the release of bidding information. Utility Model Content

[0004] Therefore, it is necessary to address the problems caused by traditional adhesive fixing methods, such as difficulty in cleaning glue residue when the bulletin board is reused, long maintenance time, increased labor costs, reduced installation efficiency, scratches on the bulletin board surface caused by frequent pasting, and shortened equipment lifespan. These problems directly affect the timeliness of the release of bidding information. Therefore, it is necessary to provide a publicity device for bidding in traffic engineering management.

[0005] A publicity device for bidding in traffic engineering management includes: a base plate, an outer frame fixedly connected to both sides of the base plate, a cover plate hinged to one side of the outer frame, and a transparent plate fixedly connected inside the cover plate to facilitate observation of the base plate; The guide shaft is provided in two parts, with both ends of the two guide shafts inserted into the two outer frames respectively. One guide shaft is fixed inside the two outer frames, while the other guide shaft slides horizontally on the surface of the substrate. A drive assembly is disposed inside the two outer frames and located at both ends of the horizontally sliding guide shaft to facilitate the movement of the guide shaft. Clamping plates are movably provided on the surfaces of the two guide shafts.

[0006] In one embodiment, baffles are fixedly attached to both sides of the two outer frames, and the interior of the two outer frames is a hollow structure.

[0007] In one embodiment, a lighting lamp is fixedly connected to one side of one of the outer frames, and the lighting lamp is located below the hinge of the cover plate.

[0008] In one embodiment, the drive assembly includes four gear shafts fixedly disposed inside the two outer frames. One end of one gear shaft is fixedly connected to a motor via a coupling. Gear rings are fitted on the surfaces of all four gear shafts. The four gear rings are divided into two groups. A transmission belt is fitted on the surface of each group of gear rings. Gear rings are reasonably connected inside the two transmission belts. The two gear rings are respectively fixedly fitted on both ends of one of the guide shafts.

[0009] In one embodiment, toothed plates are fixedly connected to the inner walls of both outer frames. The toothed plates are located inside the transmission belt and below the toothed rings. The upper parts of the two toothed plates respectively mesh with the lower parts of the two toothed rings.

[0010] In one embodiment, sleeves are fitted onto the middle surfaces of both ends of the guide shaft, the guide shaft is disconnected at the position of the sleeve, and slides inside the sleeve.

[0011] In one embodiment, limiting rings are fitted on both ends of the guide shaft, and the two limiting rings on opposite sides slide against the outer wall of the outer frame to limit the position of the guide shaft.

[0012] In one embodiment, a sleeve is movably fitted onto the middle surface of both guide shafts, and a base plate is fixedly connected to one side of the sleeve. The two base plates extend toward each other and are located below the two clamping plates. The clamping plates and the base plates are fixedly connected by bolts. Beneficial effects

[0013] 1. The fixed guide shaft is fixed inside the outer frame, and the sliding guide shaft is connected to the guide rail on the inner surface of the outer frame to achieve horizontal sliding. Both guide shafts are fitted with polyoxymethylene plates, and the inner wall of the plates has diamond-shaped anti-slip texture. The poster is limited by the bolts inserted inside, which can quickly clamp it. The time for changing the slogan is reduced and the efficiency is improved compared with the traditional method. Compared with the traditional adhesive mode, this fixing method is easier to replace and maintain in the future, and improves the service life of the bulletin board. 2. The gear ring teeth are machined according to standards and mesh with the gear shaft, resulting in high transmission efficiency. The meshing gap between the teeth of the two sets of transmission belts and the gear ring is small. The gear ring is fixed to the end of the sliding guide shaft, and the gear plate and gear ring form a gear mesh, ensuring smooth transmission. The drive component uses motor differential compensation technology to control the horizontal displacement of the guide shaft, which improves the transmission stiffness compared to the traditional motor solution. It is suitable for slogan display, and the time required for a single adjustment is less, significantly improving the efficiency of changing bidding information. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the substrate structure of this utility model; Figure 3 This is a schematic diagram of the drive component structure of this utility model; Figure 4 For the present utility model Figure 3 Schematic diagram of the structure at point A; Figure 5 For the present utility model Figure 3 A schematic diagram of the structure at point B.

[0016] Figure label: 100. Base plate; 101. Outer frame; 102. Baffle; 103. Cover plate; 104. Lighting lamp; 200. Guide shaft; 201. Sleeve; 202. Limiting ring; 300. Sleeve; 301. Base plate; 302. Clamping plate; 400. Drive assembly; 401. Gear shaft; 402. Gear ring; 403. Transmission belt; 404. Gear plate; 405. Gear ring; 406. Motor. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0018] The following is combined with Figure 1- Figure 5 This utility model describes a publicity device for bidding and tendering in traffic engineering management.

[0019] In one embodiment, a publicity device for bidding in traffic engineering management includes: a base plate 100, guide shafts 200, and a drive assembly 400. Outer frames 101 are fixedly connected to both sides of the base plate 100. A cover plate 103 is hinged to one side of the outer frame 101. A transparent plate is fixedly connected inside the cover plate 103 to facilitate observation of the base plate 100. Two guide shafts 200 are provided, with both ends of each shaft inserted into the two outer frames 101. One guide shaft 200 is fixed inside the two outer frames 101, while the other guide shaft 200 slides horizontally on the surface of the base plate 100. The drive assembly 400 is located inside the two outer frames 101 and at both ends of the horizontally sliding guide shaft 200 to facilitate driving the movement of the guide shaft 200. Clamping plates 302 are movably provided on the surfaces of both guide shafts 200. In this embodiment, the substrate 100 is made of stainless steel bent into shape, the surface is brushed and sprayed with fluorocarbon paint, and aluminum alloy outer frame 101 is fixedly connected to both sides by countersunk bolts. The outer frame 101 has a U-shaped cross section and T-slots on the inner wall for mounting accessories. A cover plate 103 is hinged to one side of the outer frame 101 by a damping hinge. The cover plate 103 is made of PC endurance board composite tempered glass, and the four sides are inlaid with EPDM sealing strips, which have good dustproof and waterproof performance. Two guide shafts 200 are provided. The fixed guide shaft 200 is fixed inside the outer frame 101, and the sliding guide shaft 200 is connected to the guide rail on the inner surface of the outer frame 101 to achieve horizontal sliding. Both guide shafts 200 are fitted with polyoxymethylene clamps 302. The inner wall of the clamps 302 has diamond-shaped anti-slip texture. The posters are limited by the bolts inserted inside, which can quickly clamp them. The time for changing the slogan is reduced and the efficiency is improved compared with the traditional method. Compared with the traditional adhesive mode, this fixing method is easier to replace and maintain later, and improves the service life of the bulletin board.

[0020] like Figure 1 , Figure 2 and Figure 3 As shown, baffles 102 are fixedly attached to both sides of the two outer frames 101, and the interior of the two outer frames 101 is hollow. A lighting lamp 104 is fixedly connected to one side of one of the outer frames 101. The lighting lamp 104 is located below the hinge of the cover plate 103. In this embodiment, aluminum alloy baffles 102 are fixed to both sides of the two outer frames 101 by stainless steel screws. The surface is anodized. Silicone sealing strips are embedded in the contact surface between the baffles 102 and the outer frames 101 to form a labyrinth-like sealing structure. The interior of the outer frame 101 adopts a hollow cavity design. The cavity contains wire grooves and ballasts to provide a concealed wiring channel for the lighting system. An LED light 104 is installed on the lower hinge side of one of the outer frames 101 via a snap-fit ​​structure. The light strip uses an SMD2835 chip with a color temperature of around 4000K. The surface of the light strip is covered with a PC diffuser, resulting in good light uniformity. The light 104 is equipped with a photosensitive sensor that automatically activates when the ambient illuminance is below 50 lux, thereby increasing the visibility distance of the slogan at night.

[0021] like Figure 2 , Figure 3 and Figure 4 As shown, the drive assembly 400 includes four gear shafts 401 disposed inside the two outer frames 101. One end of one gear shaft 401 is fixedly connected to a motor 406 via a coupling. Gear rings 402 are fitted on the surface of each of the four gear shafts 401. The four gear rings 402 are divided into two groups. A transmission belt 403 is fitted on the surface of each group of gear rings 402. Gear rings 405 are connected to the inside of each of the two transmission belts 403. The two gear rings 405 are fixedly fitted on both ends of one of the guide shafts 200. Gear plates 404 are fixedly connected to the inner walls of the two outer frames 101. The gear plates 404 are located inside the transmission belts 403 and below the gear rings 405. The upper parts of the two gear plates 404 mesh with the lower parts of the two gear rings 405 respectively. In this embodiment, four gear shafts 401 are made of stainless steel and heat-treated. They are mounted on the inner wall of the outer frame 101 via double-row angular contact ball bearings. The main drive gear shaft 401 is connected to the stepper motor 406 via a diaphragm coupling and is equipped with an encoder to achieve closed-loop control. The gear ring 402 is made of nylon injection molding, with teeth machined according to standards, and has high transmission efficiency when meshing with the gear shaft 401. The two sets of transmission belts 403 are polyurethane synchronous belts with small meshing gaps between the belt teeth and the gear ring 402. The gear ring 405 is fixed to the end of the sliding guide shaft 200 through a D-shaped hole. The gear plate 404 is made of bearing steel and quenched, and forms gear meshing with the gear ring 405 to ensure smooth transmission. The drive component 400 uses differential compensation technology of motor 406 to control the horizontal displacement of the guide shaft 200, which improves the transmission stiffness compared to the traditional motor 406 solution. It is suitable for slogan display, and the time required for a single adjustment is less, significantly improving the efficiency of bidding information replacement.

[0022] like Figure 2 , Figure 3 and Figure 5As shown, sleeves 201 are fitted on the middle surfaces of both ends of the guide shaft 200. The guide shaft 200 is disconnected at the position of the sleeve 201 and slides inside the sleeve 201. Limiting rings 202 are fitted on the surfaces of both ends of the guide shaft 200. The two limiting rings 202 are respectively slidably attached to the outer wall of the outer frame 101 on the side away from each other, so as to limit the position of the guide shaft 200. A sleeve 300 is movably fitted on the middle surface of both guide shafts 200. A base plate 301 is fixedly connected to one side of the sleeve 300. The two base plates 301 extend to the side that is close to each other and are located below the two clamping plates 302. The clamping plates 302 and the base plates 301 are fixedly connected by bolts.

[0023] In this embodiment, a self-lubricating copper sleeve is fitted at the middle of both ends of the guide shaft 200. The copper sleeve is made of tin bronze matrix with embedded graphite particles and has a spiral oil groove on the inner wall. Lithium-based grease can be injected into the oil injection hole at the top of the outer frame 101 to achieve maintenance-free sliding. The guide shaft 200 adopts a clearance fit in the sleeve 201 to ensure less axial sliding resistance and effectively prevent direct wear between metals. An aluminum alloy sleeve 300 is movably fitted in the middle of the two guide shafts 200. The inner wall of the sleeve 300 is hard anodized, and the clearance between the sleeve 300 and the guide shaft 200 has a small tolerance. A base plate 301 is welded to one side of the sleeve 300. The base plate 301 is connected to the clamping plate 302 by hexagonal bolts. The bolt preload is controlled within a certain value. The clamping plate 302 is made of reinforced nylon injection molding, and the inner wall has a diamond-shaped anti-slip texture with a depth of 0.5mm. It has a high clamping force range and is suitable for large-sized slogans.

[0024] Working principle: The PLC controller drives the motor 406 synchronously to drive the assembly 400. The stepper motor 406 drives the main drive gear shaft 401 to rotate through the diaphragm coupling. The nylon gear ring 402 meshes with the polyurethane transmission belt 403 to drive the gear ring 405 at the end of the sliding guide shaft 200 to move along the gear plate 404, thereby realizing the horizontal displacement of the guide shaft 200. At this time, the aluminum alloy sleeve 300 sleeved on the surface of the guide shaft 200 drives the base plate 301 to move synchronously. The slogan is fixed by the reinforced nylon clamp 302 fixed by the internal hexagon bolts. The diamond anti-slip texture with a depth of 0.5mm ensures that the slogan is flat and wrinkle-free. When used at night, the photosensitive sensor detects low ambient light and automatically turns on the lighting lamp 104. After the light is evenly distributed by the PC diffuser, the visibility distance of the slogan is increased. The guide shaft 200 slides in the self-lubricating copper sleeve. Through closed-loop control and differential speed compensation technology, the device reduces the time required for a single slogan replacement, is suitable for larger-sized slogans, and increases the number of times it can be reused, greatly improving the efficiency of the bulletin board.

[0025] It should be noted that the lighting lamp 104 and motor 406 mentioned above are all devices with relatively mature existing technology. The specific model can be selected according to actual needs. At the same time, the lighting lamp 104 and motor 406 can be powered by the built-in power supply or by the mains power. The specific power supply method should be selected according to the situation, which will not be elaborated here.

[0026] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A publicity device for bidding and tendering in traffic engineering management, characterized in that, include: A substrate (100) is fixedly connected to two sides of an outer frame (101), and a cover plate (103) is hinged to one side of the outer frame (101). A transparent plate is fixedly connected inside the cover plate (103) to facilitate observation of the substrate (100). Two guide shafts (200) are provided, and the two ends of the two guide shafts (200) are respectively inserted into the two outer frames (101). One guide shaft (200) is fixed inside the two outer frames (101), and the other guide shaft (200) slides horizontally on the surface of the substrate (100). A drive assembly (400) is disposed inside the two outer frames (101) and located at both ends of the horizontally sliding guide shaft (200) to facilitate the movement of the guide shaft (200). The surfaces of the two guide shafts (200) are movably provided with clamps (302).

2. The publicity device for bidding and tendering in traffic engineering management according to claim 1, characterized in that, Both sides of the two outer frames (101) are fixedly attached with baffles (102), and the interior of both outer frames (101) is hollow.

3. The publicity device for bidding and tendering in traffic engineering management according to claim 2, characterized in that, A lighting lamp (104) is fixedly connected to one side of one of the outer frames (101), and the lighting lamp (104) is located below the hinge of the cover plate (103).

4. The publicity device for bidding and tendering in traffic engineering management according to claim 3, characterized in that, The drive assembly (400) includes four gear shafts (401) disposed inside the two outer frames (101). One end of one gear shaft (401) is fixedly connected to a motor (406) via a coupling. The surfaces of the four gear shafts (401) are all fitted with gear rings (402). The four gear rings (402) are divided into two groups. The surface of each group of gear rings (402) is fitted with a transmission belt (403). The interiors of the two transmission belts (403) are all fitted with gear rings (405). The two gear rings (405) are respectively fixedly fitted at both ends of one of the guide shafts (200).

5. The publicity device for bidding and tendering in traffic engineering management according to claim 4, characterized in that, The inner walls of the two outer frames (101) are fixedly connected with toothed plates (404). The toothed plates (404) are located inside the transmission belt (403) and below the toothed rings (405). The upper parts of the two toothed plates (404) respectively mesh with the lower parts of the two toothed rings (405).

6. The publicity device for bidding and tendering in traffic engineering management according to claim 5, characterized in that, The guide shaft (200) is fitted with sleeves (201) on the middle surface of both ends. The guide shaft (200) is disconnected at the position of the sleeve (201) and slides inside the sleeve (201).

7. The publicity device for bidding and tendering in traffic engineering management according to claim 6, characterized in that, Limiting rings (202) are fitted on both ends of the guide shaft (200). The two limiting rings (202) are respectively slidably attached to the outer wall of the outer frame (101) on the side that is far away from each other, so as to limit the position of the guide shaft (200).

8. The publicity device for bidding and tendering in traffic engineering management according to claim 1, characterized in that, A sleeve (300) is movably fitted on the middle surface of each of the two guide shafts (200). A base plate (301) is fixedly connected to one side of the sleeve (300). The two base plates (301) extend toward each other and are located below the two clamping plates (302). The clamping plates (302) and the base plates (301) are fixedly connected by bolts.

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