CN210181465U - Inhale sand bridge supply cable protection device - Google Patents
Inhale sand bridge supply cable protection device Download PDFInfo
- Publication number
- CN210181465U CN210181465U CN201921392162.9U CN201921392162U CN210181465U CN 210181465 U CN210181465 U CN 210181465U CN 201921392162 U CN201921392162 U CN 201921392162U CN 210181465 U CN210181465 U CN 210181465U
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- proximity switch
- sand suction
- bridge
- connecting block
- sand
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Abstract
The utility model relates to a inhale sand bridge supply cable protection device, including inhaling the sand bridge, it has set up the slide rail to inhale sand bridge upper portion, the slide rail sets up with inhaling sand bridge is perpendicular, and slide rail sliding connection has the slider, be provided with the cable between the slider, the cable can be dismantled with the slider and be connected, and the cable is for inhaling sand bridge power supply, and the cable passes through slide rail and slider along with inhaling sand bridge and remove, the one end that the slide rail was kept away from to the slider is provided with the couple, couple one end and the lower terminal surface fixed connection of second slider, the other end are provided with the connecting block, the connecting block with inhale sand bridge parallel arrangement, connecting block and inhale fixedly connected with spring between the sand bridge, the lower extreme of connecting block is provided with proximity switch, and proximity switch is connected with PLC, and PLC inhales. The utility model discloses be provided with spring and proximity switch, proximity switch signals makes PLC control inhale the sand bridge and shut down when the spring atress takes place to deform.
Description
Technical Field
The utility model relates to a sewage treatment field, concretely relates to inhale sand bridge supply cable protection device.
Background
The grit chamber of sewage treatment plant mainly adopts two kinds of forms of advection formula and aeration formula at present, and the pond shape of aeration grit chamber and advection grit chamber is a long type channel, and the bottom all sets up album sand groove to the bottom of the pool has certain slope, can slide into album sand groove with the assurance grit. The sand suction bridge can be adopted for carrying out sand suction operation on the horizontal flow type grit chamber and the aeration type grit chamber.
When the sand suction bridge is used, the sand suction bridge is located in an absolutely open space, a cable for supplying power to the sand suction bridge is hung on the pulley, and the pulley moves along with the bridge body in the sliding groove. Inhale sand bridge at the walking in-process, the cable follows the pontic to move together, when meetting bad weather such as strong wind, the swing of cable can lead to the frictional force increase between pulley and spout to cause pulley and spout card to die and appear indirect card dead phenomenon in pulley and spout in sleet freezing weather, inhale the sand bridge after the pulley card is dead and still can continue to stimulate the pulley, finally lead to the cable conductor to damage.
Disclosure of Invention
The utility model discloses a thereby solve current sand sucking bridge cable appear card dead phenomenon in bad weather such as strong wind after the pulley continues to go forward the problem that cable conductor damaged appears, provide a sand sucking bridge supply cable protection device, be provided with spring and proximity switch, proximity switch signals makes PLC control sand sucking bridge shut down when the spring atress takes place to deform, ensures cable safety.
In order to realize the purpose, the technical scheme of the utility model is that:
a sand suction bridge power supply cable protection device comprises a sand suction bridge, a slide rail is erected at the upper part of the sand suction bridge, the slide rail is perpendicular to the sand suction bridge, the slide rail is connected with slide blocks in a sliding way, a cable is arranged between the slide blocks, the cable is detachably connected with the sliding block, the cable supplies power to the sand suction bridge, the cable moves along with the sand suction bridge through the sliding rail and the sliding block, the sliding blocks comprise a plurality of first sliding blocks and a second sliding block, one end of the second sliding block, which is far away from the sliding rail, is provided with a hook, one end of the hook is fixedly connected with the lower end face of the second sliding block, the other end of the hook is provided with a connecting block, the connecting block is arranged in parallel with the sand suction bridge, a spring is fixedly connected between the connecting block and the sand suction bridge, the lower extreme of connecting block is provided with proximity switch, proximity switch is used for responding to the connecting block displacement, and proximity switch is connected with PLC, and PLC is shut down according to the signal control sand suction bridge of proximity switch transmission.
Further, the connecting block comprises an upper portion and a lower portion, the upper portion is of a semicircular annular structure with a downward opening, the upper portion is movably connected with the hook, the lower portion is a long strip-shaped plate, and the upper portion and the lower portion are of an integrated structure.
Further, a baffle is arranged on one side of the spring and is an inverted L-shaped plate, a longitudinal section of the baffle is attached to the spring, the lower end of the longitudinal section is fixedly connected with the sand suction bridge, a transverse section of the baffle is provided with a circular through hole, the circular through hole is located below the lower portion, and a proximity switch is detachably arranged in the circular through hole.
Furthermore, the anode of the proximity switch is connected with the 24V port of the PLC, the cathode of the proximity switch is connected with the 0V port of the PLC, and the output line is connected with the IO port of the PLC.
Through the technical scheme, the beneficial effects of the utility model are that:
the utility model discloses be provided with the connecting block between slider and sand suction bridge, connecting block upper portion is connected with the slider through the couple, the fixed spring that is provided with between connecting block and the sand suction bridge, and the connecting block lower extreme is provided with proximity switch, and proximity switch is connected with PLC, and PLC inhales the sand bridge according to the signal control of proximity switch transmission and shuts down. When the dead situation of card appears in the frictional force grow between slider and the slide rail, inhale the pulling force increase that the sand bridge pulled the slider, make the connecting block atress behind the pulling force grow, and then influence the spring, the spring is drawn the force influence upper end and is taken place deformation, the connecting block takes place the displacement because drawing the force influence, the connecting block surpasss proximity switch's detection distance behind the displacement, proximity switch will send alarm signal to PLC, PLC receives the signal after control inhale the sand bridge and shut down to avoid the cable conductor to damage.
Drawings
Fig. 1 is the utility model relates to a sand suction bridge supply cable protection device is operating condition schematic diagram under normal conditions.
Fig. 2 is the utility model relates to a sand suction bridge supply cable protection device is at operating condition schematic diagram when the dead situation of card appears in slider and slide rail.
Fig. 3 is a schematic diagram of the relative position between the sand suction bridge, the cable and the guide rail of the sand suction bridge power supply cable protection device of the utility model.
Fig. 4 is the utility model relates to a sand suction bridge power supply cable protection device PLC and proximity switch's electrical apparatus wiring diagram.
The reference numbers in the drawings are as follows: 1 is the slide rail, 201 is first slider, 202 is the second slider, 3 is the couple, 4 is the connecting block, 5 is the spring, 6 is for inhaling the sand bridge, 7 is proximity switch, 8 is PLC, 9 is the baffle, 401 is upper portion, 402 is the lower part.
Detailed Description
The invention will be further explained with reference to the drawings and the detailed description below:
as shown in fig. 1, a sand suction bridge power supply cable protection device comprises a sand suction bridge 6, a slide rail 1 is erected on the upper portion of the sand suction bridge 6, the slide rail 1 is perpendicular to the sand suction bridge 6, slide blocks are slidably connected to the slide rail 1, a cable is arranged between the slide blocks and detachably connected to the slide blocks, the cable supplies power to the sand suction bridge 6 and moves along with the sand suction bridge 6 through the slide rail 1 and the slide blocks, each slide block comprises a plurality of first slide blocks 201 and a second slide block 202, a hook 3 is arranged at one end, away from the slide rail 1, of the second slide block 202, one end of the hook 3 is fixedly connected to the lower end face of the second slide block 202, a connecting block 4 is arranged at the other end of the second slide block, the connecting block 4 is parallel to the sand suction bridge 6, a spring 5 is fixedly connected between the connecting block 4 and the sand suction bridge 6, a proximity switch 7 is arranged at the lower end of, the proximity switch 7 is connected with a PLC8, and the PLC8 controls the sand suction bridge 6 to stop according to signals transmitted by the proximity switch 7.
In order to enable the connecting block 4 to have a certain moving space when the connecting block is stressed to move, the connecting block 4 comprises an upper part 401 and a lower part 402, the upper part 401 is of a semicircular annular structure with a downward opening, the upper part 401 is movably connected with the hook 3, the lower part 402 is of a strip-shaped plate, and the upper part 401 and the lower part 402 are of an integrated structure.
In order to facilitate the fixation of the proximity switch 7 and avoid the deformation influence of the spring 5, a baffle 9 is arranged on one side of the spring 5, the baffle 9 is an inverted L-shaped plate, a longitudinal section of the baffle 9 is attached to the spring 5, the lower end of the longitudinal section is fixedly connected with the sand suction bridge 6, a transverse section of the baffle 9 is provided with a circular through hole, the circular through hole is positioned below the lower part 402, and the proximity switch 7 is detachably arranged in the circular through hole.
In order to optimize the product structure, as shown in fig. 4, the anode of the proximity switch 7 is connected with the 24V port of the PLC8, the cathode is connected with the 0V port of the PLC8, and the output line is connected with the IO port of the PLC 8.
In the embodiment, the PLC8 adopts a mitsubishi motor in japan to produce a PLC with a signal of FX2N20MR4AD2DA, the proximity switch 7 adopts a proximity switch manufactured by meyer electric limited of le qing, and the sand suction bridge 6 adopts a bridge type sand sucker manufactured by environmental protection technology limited of guangdong Tuo Yuan.
As shown in fig. 3, the sand-absorbing bridge 6 will move back and forth between a and B during operation, the cable will also move back and forth between a and B along with the sand-absorbing bridge 6, when severe weather such as strong wind occurs, as shown in fig. 2, the friction between the slide rail 1 and the slide block increases or even the slide block is stuck due to the freezing influence of strong wind or rain and snow, at this time, the sand-absorbing bridge 6 is still in a traveling state, the pulling force exerted on the slide block increases along with the friction, wherein the pulling force exerted on the second slide block 202 acts on the spring 5 through the hook 3 and the connecting block 4, the upper part of the spring 5 is deformed due to the pulling force influence, the connecting block 4 also generates displacement, after the displacement of the connecting block 4 occurs, the proximity switch 7 originally arranged at the lower end of the connecting block 4 will send a signal to the PLC8 to alarm due to the fact that the connecting block 4 is not detected, when the PLC8 receives the signal, the sand-absorbing bridge, thereby avoiding the damage of the outgoing cable.
The above-mentioned embodiments are merely preferred embodiments of the present invention, and not intended to limit the scope of the present invention, so that equivalent changes or modifications made by the structure, features and principles of the present invention should be included in the claims of the present invention.
Claims (4)
1. A sand suction bridge power supply cable protection device comprises a sand suction bridge (6) and is characterized in that a sliding rail (1) is erected on the upper portion of the sand suction bridge (6), the sliding rail (1) and the sand suction bridge (6) are arranged perpendicularly, sliding blocks are connected with the sliding rail (1) in a sliding mode, a cable is arranged between the sliding blocks, the cable is detachably connected with the sliding blocks, the cable supplies power to the sand suction bridge (6), the cable moves along with the sand suction bridge (6) through the sliding rail (1) and the sliding blocks, the sliding blocks comprise a plurality of first sliding blocks (201) and a second sliding block (202), a hook (3) is arranged at one end, far away from the sliding rail (1), of the second sliding block (202), one end of the hook (3) is fixedly connected with the lower end face of the second sliding block (202), a connecting block (4) is arranged at the other end of the hook, the connecting block (4) is parallel to the sand suction bridge (6), a spring (5) is fixedly connected between, the lower extreme of connecting block (4) is provided with proximity switch (7), proximity switch (7) are used for responding to connecting block (4) displacement, and proximity switch (7) are connected with PLC (8), and PLC (8) inhale sand bridge (6) and shut down according to the signal control of proximity switch (7) transmission.
2. A sand suction bridge power supply cable protection device as claimed in claim 1, wherein the connection block (4) comprises an upper part (401) and a lower part (402), the upper part (401) is a semicircular ring structure with a downward opening, the upper part (401) is movably connected with the hook (3), the lower part (402) is an elongated plate, and the upper part (401) and the lower part (402) are of an integrated structure.
3. The sand suction bridge power supply cable protection device as claimed in claim 2, wherein a baffle (9) is arranged on one side of the spring (5), the baffle (9) is an inverted L-shaped plate, a longitudinal section of the baffle (9) is attached to the spring (5), the lower end of the longitudinal section is fixedly connected with the sand suction bridge (6), a transverse section of the baffle (9) is provided with a circular through hole, the circular through hole is located below the lower portion (402), and a proximity switch (7) is detachably arranged in the circular through hole.
4. A sand suction bridge power supply cable protection device as claimed in claim 1, wherein the positive pole of the proximity switch (7) is connected with the 24V port of the PLC (8), the negative pole is connected with the 0V port of the PLC (8), and the output line is connected with the IO port of the PLC (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921392162.9U CN210181465U (en) | 2019-08-26 | 2019-08-26 | Inhale sand bridge supply cable protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921392162.9U CN210181465U (en) | 2019-08-26 | 2019-08-26 | Inhale sand bridge supply cable protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210181465U true CN210181465U (en) | 2020-03-24 |
Family
ID=69842646
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921392162.9U Active CN210181465U (en) | 2019-08-26 | 2019-08-26 | Inhale sand bridge supply cable protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210181465U (en) |
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2019
- 2019-08-26 CN CN201921392162.9U patent/CN210181465U/en active Active
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