Bridge with lighting device

Abstract

The utility model provides a bridge with a lighting device, which is provided with a bridge box body which is in a semi-enclosed U shape with an opening. The bridge frame cover extends along a first direction, the bridge frame cover is provided with two symmetrical upper side plates and a top plate, the width of the top plate is matched with the opening of the bridge frame box body, and the top plate detachably covers the bridge frame box body; and the lighting device is arranged on the inner side wall of the bridge box body, and the lighting device connects a switch, a lamp and a power supply in series through an electric wire. Through the arrangement of the lighting device, the lighting function of the bridge is realized; through the arrangement of the alarm device, the temperature condition in the bridge can be known, whether the bridge is over-temperature or not can be known, and if the bridge is over-temperature, maintenance can be carried out before damage, so that a cable in the bridge is protected from being damaged; through the arrangement of the upper lock catch and the lower lock catch, the self-locking of the bridge is realized, and meanwhile, the bridge has good use performance.

Description

Technical Field

[0001] The utility model relates to the technical field of cable bridges, in particular to a bridge with a lighting device. Background Art

[0002] As an important part of cable laying, the safety and stability of cable trays are of vital importance. Cables will generate heat and magnetic fields during normal operation, especially when overheated, which will cause damage to the cables. Of course, cable damage may also be caused by various uncontrollable external factors, such as deformation of the bridge, deformation of the building expansion and contraction, and damage by mice. However, in many cases, the bridge does not have lighting devices, and additional lighting devices are required for maintenance, which causes various inconveniences. Furthermore, if there is a problem with the cable, it will usually generate excessive local heat. Therefore, if a device that can detect temperature abnormalities and alarm can be designed, it will give an early warning before the cable is damaged, thereby improving the safety of cable use. In addition, the laying of cables is often complicated, and the lack of an alarm device also requires one-by-one inspection and maintenance, which is very labor-intensive and affects the safety and convenience of the cable tray. Utility Model Content

[0003] The utility model provides a bridge with a lighting device, which at least solves one or more of the problems that the existing bridge has no lighting device, is inconvenient to repair, cannot determine the position, and so on.

[0004] To achieve the above purpose, the utility model provides the following solutions:

[0005] The utility model provides a bridge with a lighting device, comprising

[0006] The bridge box body is a semi-enclosed U-shaped body with an opening, and has two symmetrical lower side plates and a bottom plate. The bridge box body extends along a first direction, which is a horizontal direction. The lower side plates and the bottom plate enclose an internal space of the bridge box body.

[0007] A bridge cover, the bridge cover extends along a first direction, the bridge cover has two symmetrical upper side plates and a top plate, the width of the top plate is adapted to the opening of the bridge box body, and the top plate is detachably covered on the bridge box body;

[0008] A lighting device is arranged on the inner wall of the bridge box body, and the lighting device connects a switch, a lamp, and a power supply in series through electric wires;

[0009] The technical solution preferably further includes a long strip through hole, which is arranged on the lower side plate and extends along a second direction to form a slide groove, and the second direction is perpendicular to the first direction;

[0010] A control button is arranged on the top of the switch, and the axis of the control button is parallel to the vertical axis of the long strip through hole;

[0011] The spring sheet is L-shaped, and its symmetry axis is colinear with the control button and the vertical axis of the elongated through hole. One end of the spring sheet is fixedly connected to the top of the switch, and the control button is located between the fixed end of the spring sheet and the elongated through hole; the other end of the spring sheet extends out of the elongated through hole and abuts against the end of the lower side plate. When the bridge cover is closed, the spring sheet moves downward along the elongated through hole under the force of the end of the lower side plate.

[0012] Preferably, the technical solution further includes a limiting groove, which is arranged in the bridge box body and extends along the first direction to form a strip shape.

[0013] Preferably, the limiting grooves are symmetrically arranged at two right angles at the bottom of the inner side wall of the bridge box body.

[0014] Preferably, the technical solution further includes a snap ring, which is a semicircular structure, with inner hooks provided at both ends of the snap ring, and outer hooks provided at both ends of the limiting groove, and the inner hooks are engaged with the outer hooks.

[0015] Preferably, the external hook has an inner arc surface and an outer arc surface.

[0016] The present technical solution preferably further comprises an upper lock buckle and a lower lock buckle, wherein the upper lock buckle is symmetrically arranged on the upper side plate of the bridge frame cover, and the lower lock buckle is symmetrically arranged on the end of the side plate of the bridge frame box body, and the upper lock buckle and the lower lock buckle can be buckled.

[0017] Preferably, the technical solution further includes ventilation holes, and the ventilation holes are arranged on the lower side plate.

[0018] Preferably, the technical solution further includes an alarm device, which is integrated on an integrated circuit board by a buzzer, a lamp bead, a temperature control switch, and a battery. The temperature control switch can automatically open and close according to the temperature inside the bridge box body.

[0019] Preferably, the alarm device is installed inside the bridge box body, and the buzzer and the lamp beads are arranged at the ventilation holes.

[0020] The application of the utility model in the field of cable tray technology will achieve the following beneficial effects:

[0021] The utility model provides a bridge with a lighting device, which is provided with a bridge box body, a bridge cover, a lighting device, a limit groove, etc., so as to realize the lighting function of the bridge; through the setting of the alarm device, the temperature condition in the bridge can be understood to know whether it is overheated. If it is overheated, it can be repaired before damage, so as to protect the cables in the bridge from damage; through the setting of the upper locking buckle and the lower locking buckle, the self-locking of the bridge is realized, and at the same time, it has good use performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0023] Figure 1 It is a structural schematic diagram of a bridge with a lighting device in the utility model;

[0024] Figure 2 It is a side structural schematic diagram of a bridge with a lighting device in the utility model;

[0025] Figure 3 It is a front view of a bridge with a lighting device in the utility model;

[0026] Figure 4 It is an enlarged view of the A part in the front view of a bridge with a lighting device in the utility model;

[0027] Figure 5 It is an enlarged view of the bridge cover in the open state of the A position in the front view of the utility model;

[0028] Figure 6 This is an enlarged view of part B in the front view of a bridge having a lighting device in the utility model;

[0029] Figure 7 It is a schematic diagram of an alarm device of a bridge with a lighting device in the utility model;

[0030] Figure 8 It is a partial cross-sectional view of a bridge with a lighting device in the utility model;

[0031] In the figure: 1. bridge box body; 2. lower side plate; 3. bottom plate; 4. long strip through hole; 5. bridge cover; 6. top plate; 7. upper side plate; 8. lighting device; 9. switch; 10. lamp; 11. power supply; 12. spring sheet; 13. wire; 14. control button; 15. upper lock buckle; 16. lower lock buckle; 17. limit groove; 18. outer hook; 19. snap ring; 20. inner hook; 21. alarm device; 22. battery; 23. lamp bead; 24. buzzer; 25. temperature control switch; 26. ventilation hole; 27. integrated circuit board; 28. reset spring; 29. ​​contact; 30. support rod; 31. limit plate. DETAILED DESCRIPTION

[0032] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0033] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0034] In the description of the present utility model, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of first and second, this is only for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0035] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installation, connection and connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. The first direction is the horizontal direction, and the second direction is the vertical direction perpendicular to the first direction.

[0036] The utility model provides a retractable cable bridge.

[0037] Before the detailed introduction, it is necessary to understand the application scenarios of the utility model. The bridge is often laid in different environments and often needs to pass through complex working environments, such as high temperature, high humidity, dust, oily areas, etc. Therefore, if a cable outlet failure occurs, it will increase the difficulty of maintenance during maintenance. Especially in closed spaces such as basements and tunnels, the light is usually dim, which is not conducive to the inspection and maintenance of cables. A bridge with a lighting device can provide the necessary light source to facilitate the staff to inspect and repair the cables.

[0038] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0039] like Figure 1-3 As shown, it is a schematic diagram of the overall structure of the utility model:

[0040] A bridge with a lighting device, comprising

[0041] The bridge box body 1 is a semi-enclosed type with an opening, and has two symmetrical lower side plates 2 and a bottom plate 3. The bridge box body 1 extends along a first direction, and the first direction is a horizontal direction. The lower side plates 2 and the bottom plate 3 enclose an internal space of the bridge box body 1; a bridge cover 5, the bridge cover 5 extends along the first direction, and the bridge cover 5 has two symmetrical upper side plates 7 and a top plate 6. The width of the top plate 6 is adapted to the opening of the bridge box body 1, and the top plate 6 is detachably covered on the bridge box body 1; a lighting device 8 is arranged on the inner side wall of the bridge box body 1, and the lighting device 8 connects a switch 9, a lamp 10, and a power supply 11 in series through an electric wire 13;

[0042] As a kind of trough-type cable tray, the bridge box 1 is a trough-type component formed by bending, stamping or casting a whole steel plate. It is generally a semi-enclosed shaped with an opening. The trough-type cable tray has a certain depth and closedness. It is most suitable for laying computer cables, communication cables, thermocouple cables and other control cables of highly sensitive systems. It has a good effect on shielding interference of control cables and protection of cables in heavy corrosion environments.

[0043] Generally speaking, the width of the bridge cover 5 is adapted to the opening of the bridge box body 1, and the bridge cover 5 can be detachably covered on the bridge box body 1. The connection method of the bridge cover 5 and the bridge box body 1 can be a common cover, or a buckle locking method as proposed in the utility model. The bridge cover 5 is provided with an upper lock buckle 15, and the bridge box body 1 is provided with a lower lock buckle 16, and the upper lock buckle 15 is buckled with the lower lock buckle 16.

[0044] Furthermore, the lighting device 8 is arranged in the bridge box body 1 for use when repairing the cable. It is formed by connecting the switch 9, the lamp 10, and the power supply 11 in series through the wire 13. The power supply 11 can be an external fixed power supply 11, such as a battery panel, or it can be connected to the cable line passing through the bridge, borrowing its internal power. However, it is preferred to use an external fixed power supply 11, because if a circuit failure occurs, the independent power supply 11 is not affected by whether the cable is damaged, and it supplies power independently. The lamp 10 is preferably an LED energy-saving lamp, which is conducive to the long-term standby use of the lighting device 8.

[0045] It should be noted that in order to facilitate the use of the lighting device 8, the switch 9 needs to be set to automatic. Because in the maintenance state, it is often dark and it is not convenient to find the lighting switch 9. Especially in the bridge that is laid over a long distance, it is more difficult to find the switch 9. Therefore, a long strip through hole 4 is set on the lower side plate 2 of the bridge box body 1. The long strip through hole 4 forms a slide groove in the vertical direction, and the spring sheet 12 presses the control button 14 by sliding up and down in the slide groove. At the same time, the upper side surface 7 of the bridge cover 5 is set to a length that can abut the spring sheet 12. When the cover is closed, the spring sheet 12 can be pressed, thereby pressing the control button 14 to turn off the light.

[0046] It must be noted that if Figure 8 As shown, the switch 9 is a normally closed limit switch 9, which will only be powered off when pressed. The switch 9 has a control button 14, a reset spring 28, a contact 29, a support rod 30, and a limit plate 31. The control button 14 is connected to the contact 29 through the support rod 30; the reset spring 28 is arranged on the support rod 30, one end of which abuts the control button 14 and the other end abuts the limit plate 31. There are four contacts 29, two static ones are arranged in the circuit, and two dynamic ones are arranged on the copper sheet on the support rod 30. When the bridge cover 5 is closed, the spring sheet 12 is pressed by the upper side plate 7, pressing the control button 14, and the support rod 30 separates the four contacts 29, disconnecting the circuit and turning off the lighting device 8. When the bridge cover 5 is opened, that is, the spring sheet 12 bounces up, at this time the control button 14 is not pressed, the switch 9 is in a closed state, and the lighting device 8 is powered on. When the bridge cover 5 is opened again, the return spring 28 pushes the support link 30 to restore the switch 9 to the initial connection state.

[0047] It is worth noting that when cables enter the bridge, there are often cables of different specifications and models, especially when some cables are connected to special voltages and need to be distinguished from other cables, independent spaces must be set. For this reason, a limit groove 17 is proposed, which is arranged in a strip shape in the bridge box body 1. The cables can be arranged independently in the limit groove 17.

[0048] Furthermore, if the limit grooves 17 are arranged at two right angles at the bottom of the inner side wall of the bridge box body 1, the distance between the cables can be maximized. Different cables will generate different magnetic fields and heat during operation. If they are too close, they will affect each other and are not conducive to heat dissipation. Positioning them at the farthest distance can reduce mutual influence and is also conducive to heat dissipation.

[0049] like Figure 6 As shown, in order to fix the cable or lamp 6 in the limiting groove 17, a semicircular structured snap ring 19 is further provided, and inner hooks 20 are provided at both ends of the snap ring 19, and outer hooks 18 are provided at both ends of the limiting groove 17, and the inner hooks 20 are engaged with the outer hooks 18. The inner hooks 20 are hook claws extending inwardly of the ring, and the outer hooks 18 are hook claws extending outwardly of the ring. Of course, outer hooks 18 can also be provided at both ends of the snap ring 19, and inner hooks 20 can be provided at both ends of the limiting groove 17, as long as the hook connection between the inner hooks 20 and the outer hooks 18 can be achieved.

[0050] In order to facilitate pressing the inner hook 20 into the outer hook 18, the outer hook 18 is provided with an inner arc surface and an outer arc surface. The curvature of the outer arc surface reduces the friction of the inner hook 20 during the advancement process, and it is more labor-saving to use.

[0051] Furthermore, during the operation of the cable tray, the cables will generate heat when transmitting electricity, causing the temperature inside the cable tray to rise. Therefore, in order to release the high temperature in the tray box 1, a ventilation hole 26 is provided on the lower side plate 2. At the same time, the ventilation hole 26 is also used as the location for arranging the buzzer 24 and the lamp bead 23 for easy observation.

[0052] It should be noted that the alarm device 21 is generally integrated, that is, the buzzer 24, the lamp bead 23, the temperature control switch 25, and the battery 22 are integrated on the integrated circuit board 27. The alarm device 21 generally only requires a voltage of 12V-24V, so a low-voltage battery 22 can be used. The independent battery 22 makes the alarm device 21 more stable.

[0053] It is worth pointing out that the temperature control switch 25, as a protective device, will only work when the temperature is abnormal, and the temperature control switch 25 will not take effect when the temperature is normal. The bimetallic strip is the soul component of the temperature control switch 25. The bimetallic strip is formed by pressing two pieces of metal with different thermal expansion coefficients. When the heat energy on the metal strip increases, the tension of one piece of metal will slowly increase because the two pieces of metal expand and contract at different degrees. When the tension is greater than the elastic force of the other piece of metal, it will instantly deform, causing the contact of the metal strip to separate from the terminal contact, disconnecting the circuit. When the temperature gradually decreases, the contraction force of a piece of metal gradually increases. When this force is greater than that of the other piece of metal, it will also deform, instantly connecting the contact of the metal strip with the terminal contact, thereby turning on the circuit.

[0054] Of course, when the temperature exceeds a certain threshold, the temperature control switch 25 connects the circuit, the alarm device 21 works, the buzzer 24 sounds, and the lamp bead 23 lights up. The lamp bead 23 only serves as a reminder of the position and is not used for lighting.

[0055] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A bridge with a lighting device, characterized in that: include: The bridge box body (1) is a semi-enclosed hollow-shaped body with an opening, and has two symmetrical lower side plates (2) and a bottom plate (3); the bridge box body (1) extends along a first direction, the first direction being a horizontal direction; the lower side plates (2) and the bottom plate (3) enclose an internal space of the bridge box body (1); A bridge cover (5), the bridge cover (5) extending along a first direction, the bridge cover (5) having two symmetrical upper side plates (7) and a top plate (6), the width of the top plate (6) being adapted to the opening of the bridge box body (1), and the top plate (6) being detachably covered on the bridge box body (1); The lighting device (8) is arranged on the inner wall of the bridge box body (1), and the lighting device (8) connects the switch (9), the lamp (10), and the power source (11) in series via an electric wire (13).

2. A bridge with a lighting device according to claim 1, characterized in that: It also includes a long strip through hole (4), which is arranged on the lower side plate (2) and extends along a second direction to form a slide groove, and the second direction is perpendicular to the first direction; A control button (14) is arranged on the top of the switch (9), and the axis of the control button (14) is parallel to the vertical axis of the long strip through hole (4); The spring sheet (12) is L-shaped, and its symmetry axis is colinear with the control button (14) and the vertical axis of the long strip through hole (4); one end of the spring sheet (12) is fixedly connected to the top of the switch (9), and the control button (14) is located between the fixed end of the spring sheet (12) and the long strip through hole (4); the other end of the spring sheet (12) extends out of the long strip through hole (4) and abuts against the end of the lower side plate (2); when the bridge cover (5) is closed, the spring sheet (12) moves downward along the long strip through hole (4) under the action of the end of the lower side plate (2).

3. The bridge with lighting device according to claim 2, characterized in that: It also comprises a limiting groove (17), wherein the limiting groove (17) is arranged in the bridge box body (1), and the limiting groove (17) extends along a first direction to form a strip shape.

4. The bridge with lighting device according to claim 3, characterized in that: The limiting grooves (17) are symmetrically arranged at two right angles on the bottom of the inner side wall of the bridge box body (1).

5. The bridge with lighting device according to claim 3, characterized in that: It also comprises a snap ring (19), the snap ring (19) being of a semicircular structure, inner hooks (20) being arranged at both ends of the snap ring (19), outer hooks (18) being arranged at both ends of the limiting groove (17), the inner hooks (20) being engaged with the outer hooks (18).

6. The bridge with lighting device according to claim 5, characterized in that: The external hook (18) has an inner arc surface and an outer arc surface.

7. The bridge with lighting device according to claim 2, characterized in that: It also comprises an upper lock buckle (15) and a lower lock buckle (16), wherein the upper lock buckle (15) is symmetrically arranged on the upper side plate (7) of the bridge frame cover (5), and the lower lock buckle (16) is symmetrically arranged on the end of the lower side plate (2), and the upper lock buckle (15) and the lower lock buckle (16) can be buckled.

8. The bridge with lighting device according to claim 2, characterized in that: It also includes a ventilation hole (26), wherein the ventilation hole (26) is arranged on the lower side plate (2).

9. The bridge with lighting device according to claim 8, characterized in that: It also includes an alarm device (21), the alarm device (21) being integrated on an integrated circuit board (27) with a buzzer (24), a lamp bead (23), a temperature control switch (25), and a battery (22), wherein the temperature control switch (25) can be automatically opened and closed according to the temperature in the bridge box body (1).

10. The bridge with lighting device according to claim 9, characterized in that: The alarm device (21) is installed inside the bridge box body (1), and the buzzer (24) and the lamp bead (23) are arranged at the ventilation hole (26).

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