CN210086990U - Building site protector - Google Patents

Abstract

The utility model discloses a building site protector, including first protection network and with the strutting arrangement that first protection network is connected, strutting arrangement includes the supporting seat, first protection network fixed connection is on the fixed frame of protection network, the below of the fixed frame of protection network is provided with deposits the net device, deposit the net device including a book net section of thick bamboo, deposit net axle and second protection network. The utility model discloses a set up when depositing the net device and can guarantee that first protection network risees, can protect first protection network lower extreme to reach comprehensive protection's effect, need not manual again at first protection network lower extreme installation protection network, convenient to use, and the second protection network that sets up can withdraw automatically, damage when having avoided the second protection network not to use has guaranteed the life of second protection network.

Description

Building site protector

Technical Field

The utility model relates to a building engineering technical field particularly, relates to a building site protector.

Background

In the building engineering, because the labor amount is large, the engineering is large, the labor personnel are many and complicated, and the safety consciousness of the labor personnel is weak, the probability of safety accidents is high, so that the safety is particularly emphasized in the building engineering, and various protective devices such as protective guards, protective nets and the like can be erected on the construction site; the existing protective net cannot be adjusted in height along with different construction sites, so that the protective net is only suitable for one construction site singly.

The patent with the publication number of CN207829598U discloses "a protective net for civil engineering construction, which comprises a protective net and a supporting device connected with the protective net, wherein the supporting device comprises a supporting seat, the supporting seat is provided with a rotating cavity, a rotating rod and a lifting screw are arranged in the rotating cavity, the upper ends of the rotating rod and the lifting screw movably penetrate through the rotating cavity, the lower ends of the rotating rod and the lifting screw movably connect with the rotating cavity through a bearing, the rotating rod is connected with the lifting screw through gear transmission, the lifting screw is sleeved with a connecting rod, the connecting rod is connected with the protective net, the connecting rod is provided with a lifting cavity, a lifting block is fixedly sleeved in the lifting cavity, the lifting screw movably penetrates through the lifting block through screw threads, the connecting rod is provided with a protective cavity, and a protective rod is movably penetrated through the protective cavity, the connecting groove has evenly been seted up to the protection rod, it can carry out height control to the protection network, however it has following defect: when the lifter rises, the distance between the bottom of the lifter and the supporting seat is gradually increased, and the protective net can only lift along with the connecting rod, so that the bottom of the lifter and the supporting seat are not covered by the protective net, potential safety hazards exist, and the protective effect is reduced.

SUMMERY OF THE UTILITY MODEL

For solving the problem that exists among the prior art, the utility model aims at providing a building site protector can guarantee when first protection network risees, can protect first protection network lower extreme to reach comprehensive protection's effect, need not manual installation protection network at first protection network lower extreme once more, convenient to use, and the second protection network that sets up can withdraw automatically, has avoided the damage when second protection network does not use, has guaranteed the life of second protection network.

In order to achieve the above object, the utility model adopts the following technical scheme: a construction site protection device comprises a first protection net and a supporting device connected with the first protection net, wherein the supporting device comprises a supporting seat, the supporting seat is provided with a rotating cavity, a rotating rod and a lifting screw rod are arranged in the rotating cavity, the upper ends of the rotating rod and the lifting screw rod are movably penetrated through the rotating cavity, the lower ends of the rotating rod and the lifting screw rod are movably connected with the rotating cavity through bearings, the rotating rod is connected with the lifting screw rod through gear transmission, the lifting screw rod is sleeved with a connecting rod, the connecting rod is connected with the first protection net, the connecting rod is provided with a lifting cavity, a lifting block is fixedly sleeved in the lifting cavity, the lifting screw rod movably penetrates through the lifting block through threads, the first protection net is fixedly connected onto a fixed frame of the protection net, a net storage device is arranged below the fixed frame of the protection net, the net storage device comprises a net rolling barrel, a net storage shaft and a second protective net, a through groove is formed in the net rolling barrel along the axial direction, the net storage shaft is coaxially and rotatably connected into the net rolling barrel, the second protective net is wound on the net storage shaft, and one end of the second protective net is fixedly connected with the net storage shaft; two ends of the net storage shaft extend out of two ends of the net rolling barrel respectively.

The net rolling barrel has two fixing modes, namely: the net rolling cylinder is fixed at the bottom of the protective net fixing frame, the other end of the second protective net extends out of the through groove, and the extending end is fixedly connected with the upper surface of the supporting seat; and the second method comprises the following steps: the net rolling barrel is fixed on the upper surface of the supporting seat, the other end of the second protective net extends out of the through groove, and the extending end is fixedly connected with the bottom of the protective net fixing frame.

The working principle is as follows: when driving first protection network and rising through elevator, lifting screw and rotary rod, the second protection network is pulled out by logical groove, deposits the net shaft and rotates in order to emit the rolling and deposit epaxial second protection network of net. When the first protective net needs to be lowered, the first protective net is lowered to the designated position, then the net storage shaft is manually rotated, the rotating direction is opposite to the first rotating direction of the net storage shaft, so that the discharged second protective net can be retracted into the net rolling barrel, the damage to the second protective net is avoided when the net is not used, and the service life of the second protective net is guaranteed.

The utility model discloses a set up when depositing the net device and can guarantee that first protection network risees, can protect first protection network lower extreme to reach the effect of comprehensive protection, need not manual again at first protection network lower extreme installation protection network, convenient to use, and the second protection network that sets up can withdraw, damage when having avoided the second protection network not to use has guaranteed the life of second protection network.

Preferably, the lifting screw is provided with a first bevel gear, the net winding drum is fixedly connected to the upper surface of the supporting seat, the other end of the second protective net extends out of the through groove, the extending end of the second protective net is fixedly connected with the bottom of the first protective net, and the extending end of the net storage shaft is provided with a second bevel gear meshed with the first bevel gear. When driving the lifting screw rod through the rotary rod and rotating in order to rise first protection network, first bevel gear on the lifting screw rod rotates in step, and first bevel gear drives second bevel gear and rotates, and second bevel gear drives the net shaft and rotates to realize giving out of second protection network. When the lifting screw rod is driven to rotate through the rotary rod so as to reduce the first protective net, the first bevel gear on the lifting screw rod rotates synchronously, the rotating direction is opposite to the first rotating direction, the first bevel gear drives the second bevel gear to rotate, the second bevel gear drives the net storage shaft to rotate, and the rotating direction is opposite to the first rotating direction, so that the second protective net is automatically retracted. The first bevel gear and the second bevel gear are arranged to realize automatic retraction of the second protective net, so that the second protective net can be automatically released or retracted along with the rising or falling of the first protective net, and the use is convenient.

Preferably, the net rolling cylinder is fixed at the bottom of the protective net fixing frame, the other end of the second protective net extends out of the through groove, and the extending end is fixedly connected with the upper surface of the supporting seat; and a torsional spring is sleeved outside the net storage shaft. The torsional spring has two, sets up respectively at the both ends of depositing the net axle, and the connected mode at torsional spring both ends refers to prior art, and this place is no longer repeated. When the first protective net rises, the second protective net is released, so that the lower part of the first protective net is protected. The second protection network drives when emitting and deposits the net axle and rotate, deposits the net axle and rotates the process torsional spring and produce the moment of torsion, and when reducing first protection network, the second protection network is not hard up and resets under the moment of torsion effect of torsional spring, and the torsional spring makes and deposits net axle antiport promptly to withdraw the second protection network. The second protective net can be automatically retracted by arranging the torsion spring, so that the second protective net can be automatically released or retracted along with the rising or falling of the first protective net, and the use is convenient.

Preferably, first protection network includes interior protection network, outer protection network, bracing piece and reinforcement rib area, the fixed outer protection network that is provided with in interior protection network bottom, interior protection network fixed surface is provided with the bandage, reinforcement rib area is fixed to be set up one side of bandage, the fixed mounting hole that is provided with in one side of reinforcement rib area, the fixed thing bag that puts that is provided with in mounting hole one side, it is provided with the bracing piece to put thing bag inner chamber activity, it is provided with warning area to put thing bag external fixation. The during operation, first protection network passes through the mounting hole to be fixed on the fixed frame of protection network, and wherein the inner wall of mounting hole is equipped with the hoop, can prevent that the mounting hole from taking place to tear under pulling by external force, can play fine guard action, can fix first protection network middle part through the bandage. The first protective net is divided into an inner protective net and an outer protective net, the inner protective net is made of nylon materials, the inner protective net has strong elasticity, the elasticity and the wear resistance are good under dry and wet conditions, the size is stable, and the water shrinkage rate is small. Through the anti damage ability of the improvement protection that the reinforcing bar area can be stronger, can effectively prevent to strike and puncture first protection network. The outer protective net is made of glass fiber, has the characteristics of good insulativity, strong heat resistance, good corrosion resistance, high mechanical strength and the like, can be used for multiple times by being exposed to the sun for a long time, prolongs the service life, reduces the use cost, and has a warning effect by the arranged warning belt.

Preferably, the universal wheel is installed to the bottom of supporting seat, the cylinder is all installed to the universal wheel both sides, the vertical downward setting of piston end of cylinder, the piston end coaxial of cylinder has linked firmly the dead lever. The universal wheel that sets up can make things convenient for the holistic removal of device, when removing the workplace, starts the cylinder, and the piston end downstream of cylinder is whole to jack-up device, and the device is whole to be supported by the cylinder this moment to pack up the universal wheel and prevent that device from moving as a whole. When the work place is the earth ground, the dead lever is inserted in the earth ground under the effect of cylinder to whole fixed effect of playing of device has improved the holistic stability of device.

Preferably, the bottom of the supporting seat is provided with a fixed seat, the fixed seat comprises a supporting arm, a connecting arm, two parallel plates and a sucker, the two connecting arms are symmetrically arranged at two ends of the lower surface of the supporting arm, the two suckers are respectively arranged at the lower ends of the two connecting arms, the two parallel plates are symmetrically arranged between the sucker and the connecting arm, the two parallel plates are respectively and fixedly connected with the sucker and the connecting arm through transverse plates, the supporting arm is fixedly provided with a connecting rod, the connecting rod is fixedly connected with the lower surface of the supporting seat, the supporting arm is internally provided with a first channel, the connecting arm is internally provided with a second channel, the upper end of the sucker is provided with a third channel, the third channel is communicated with the sucker, one end of the first channel is communicated with the outside of the supporting arm, and the other end of, the other end of the second channel is communicated with the third channel, and a first sealing device is arranged at one end of the first channel communicated to the outside of the supporting arm.

The first sealing device comprises a first spring, a blocking ball, a sealing plate and a connecting column, the blocking ball is arranged in the first channel and communicated to one end of the supporting arm outside through the first channel, the sealing plate is arranged outside the first channel and located above the blocking ball, two ends of the connecting column are fixedly connected with the sealing plate and the blocking ball respectively, the first spring is provided with a plurality of springs, and the two ends of the first spring are fixedly connected with the sealing plate and the supporting arm respectively.

When the working place is a place with higher ground strength, such as a cement ground, the whole device can be fixed on the ground through the fixing seat. The fixing process comprises the following steps: the fixing seat is pressed downwards manually. The sucker of the fixing seat is stressed, so that air in the sucker is exhausted from the first channel, the second channel and the third channel, and negative pressure is formed inside the sucker. Under the action of the pressure difference, the fixed seat is adsorbed on the ground. The parallel plate is vertical to the ground, so that the arrangement of the parallel plate can ensure that the sucker is adsorbed on the ground. The contact surfaces of the two are parallel to ensure the use condition of the device. And in the process of exhausting the air from the first channel, the second channel and the third channel, a part of air firstly acts on the blocking ball to push the blocking ball to move upwards, and meanwhile, the other part of air is exhausted from the blocking ball and the first channel. When the plugging ball moves upwards to be buckled with the upper end of the first channel, a negative pressure closed space is formed between the steel plate and the sucker, and therefore the fixing seat is fixed on the ground in an adsorption mode.

The utility model has the advantages that:

(1) the utility model discloses a set up when depositing the net device and can guarantee that first protection network risees, can protect first protection network lower extreme to reach the effect of comprehensive protection, need not manual again at first protection network lower extreme installation protection network, convenient to use, and the second protection network that sets up can withdraw, damage when having avoided the second protection network not to use has guaranteed the life of second protection network.

(2) The first bevel gear and the second bevel gear are arranged to realize automatic retraction of the second protective net, so that the second protective net can be automatically released or retracted along with the rising or falling of the first protective net, and the use is convenient.

(3) The second protective net can be automatically retracted by arranging the torsion spring, so that the second protective net can be automatically released or retracted along with the rising or falling of the first protective net, and the use is convenient.

(4) The universal wheel is mounted on the base, air cylinders are mounted on two sides of the universal wheel, the piston ends of the air cylinders are vertically and downwards arranged, and the piston ends of the air cylinders are coaxially and fixedly connected with fixing rods; the universal wheel that sets up can make things convenient for the holistic removal of device, when removing the workplace, starts the cylinder, and the piston end downstream of cylinder is whole to jack-up device, and the device is whole to be supported by the cylinder this moment to pack up the universal wheel and prevent that device from moving as a whole. When the work place is the earth ground, the dead lever is inserted in the earth ground under the effect of cylinder to whole fixed effect of playing of device has improved the holistic stability of device.

(5) The fixing seat can improve the overall fixing effect of the device and improve the overall stability of the device.

Drawings

Fig. 1 is a schematic view of an overall structure of a ground protection device in embodiment 1 of the present invention;

fig. 2 is a schematic structural view of a net storage device in embodiment 1 of the present invention;

fig. 3 is a schematic structural view of a net drum in embodiment 1 of the present invention;

fig. 4 is a schematic structural view of a first protective net in embodiment 1 of the present invention;

fig. 5 is a schematic cross-sectional structure view of a first protective net in embodiment 1 of the present invention;

fig. 6 is a schematic view of the overall structure of the earth-working protection device in embodiment 1 of the present invention;

fig. 7 is a schematic structural view of the ground protection device in embodiment 2 of the present invention;

fig. 8 is a schematic structural view of a net storage device in embodiment 2 of the present invention;

fig. 9 is a schematic structural view of the ground protection device in embodiment 3 of the present invention;

fig. 10 is a schematic structural view of a fixing base in embodiment 3 of the present invention;

fig. 11 is a schematic structural view of a first sealing device in embodiment 3 of the present invention.

Description of reference numerals:

1. a first protection net; 2. a support device; 3. a supporting seat; 4. a rotating chamber; 5. rotating the rod; 6. a lifting screw; 7. a gear; 8. a connecting rod; 9. a lifting cavity; 10. a lifting block; 11. a protective net fixing frame; 12. A network storage device; 13. a net rolling cylinder; 14. storing a net shaft; 15. a second protective net; 16. a through groove; 17. a first bevel gear; 18. a second bevel gear; 19. a torsion spring; 20. an inner protective net; 21. an outer protective net; 22. a support bar; 23. reinforcing the rib belt; 24. binding bands; 25. mounting holes; 26. a storage bag; 27. connecting columns; 28. A warning band; 29. a universal wheel; 30. a cylinder; 31. fixing the rod; 32. a fixed seat; 33. a support arm; 34. A first channel; 35. a connecting arm; 36. a second channel; 37. parallel plates; 38. a transverse plate; 39. a suction cup; 40. a third channel; 41. a connecting rod; 42. a first sealing device; 43. a first spring; 44. plugging the ball; 45. and (7) sealing the plate.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

Example 1:

as shown in fig. 1-6, a construction site protection device comprises a first protection net 1 and a supporting device 2 connected with the first protection net 1, wherein the supporting device 2 comprises a supporting seat 3, the supporting seat 3 is provided with a rotating cavity 4, a rotating rod 5 and a lifting screw 6 are arranged in the rotating cavity 4, the upper ends of the rotating rod 5 and the lifting screw 6 movably penetrate through the rotating cavity 4, the lower ends of the rotating rod 5 and the lifting screw 6 are movably connected with the rotating cavity 4 through a bearing, the rotating rod 5 is in transmission connection with the lifting screw 6 through a gear 7, the lifting screw 6 is sleeved with a connecting rod 8, the connecting rod 8 is connected with the first protection net 1, the connecting rod 8 is provided with a lifting cavity 9, a lifting block 10 is fixedly connected in the lifting cavity 9, and the lifting screw 6 movably penetrates through the lifting block 10 through a thread, the first protective net 1 is fixedly connected to a protective net fixing frame 11, a net storage device 12 is arranged below the protective net fixing frame 11, the net storage device 12 comprises a net rolling barrel 13, a net storage shaft 14 and a second protective net 15, a through groove 16 is formed in the net rolling barrel 13 along the axial direction, the net storage shaft 14 is coaxially and rotatably connected into the net rolling barrel 13, the second protective net 15 is wound on the net storage shaft 14, and one end of the second protective net 15 is fixedly connected with the net storage shaft 14; two ends of the net storage shaft 14 extend out of two ends of the net winding drum 13 respectively.

As shown in fig. 1 to 3, a first bevel gear 17 is arranged on the lifting screw 6, the net winding drum 13 is fixedly connected to the upper surface of the supporting seat 3, the other end of the second protective net 15 extends out of the through groove 16, the extending end is fixedly connected to the bottom of the first protective net 1, and a second bevel gear 18 meshed with the first bevel gear 17 is arranged at the extending end of the net storage shaft 14. When the rotating rod 5 drives the lifting screw 6 to rotate so as to lift the first protective net 1, the first bevel gear 17 on the lifting screw 6 synchronously rotates, the first bevel gear 17 drives the second bevel gear 18 to rotate, and the second bevel gear 18 drives the net storage shaft 14 to rotate, so that the second protective net 15 is discharged. When the rotating rod 5 drives the lifting screw 6 to rotate so as to lower the first protective net 1, the first bevel gear 17 on the lifting screw 6 rotates synchronously, the rotating direction is opposite to the first rotating direction, meanwhile, the first bevel gear 17 drives the second bevel gear 18 to rotate, the second bevel gear 18 drives the net storage shaft 14 to rotate, and the rotating direction is opposite to the first rotating direction, so that the second protective net 15 is automatically retracted. The automatic retraction of the second protection net 15 is realized by arranging the first bevel gear 17 and the second bevel gear 18, so that the second protection net 15 can be automatically paid out or retracted along with the rising or falling of the first protection net 1, and the use is convenient.

As shown in fig. 4 and 5, the first protection net 1 includes an inner protection net 20, an outer protection net 21, a support rod 22 and a reinforcing rib band 23, the bottom of the inner protection net 20 is fixedly provided with the outer protection net 21, the surface of the inner protection net 20 is fixedly provided with a binding band 24, the reinforcing rib band 23 is fixedly arranged at one side of the binding band 24, one side of the reinforcing rib band 23 is fixedly provided with a mounting hole 25, one side of the mounting hole 25 is fixedly provided with a storage bag 26, the support rod 22 is movably arranged in the inner cavity of the storage bag 26, and the outer surface of the storage bag 26 is fixedly provided with a warning band 28. During operation, first protection network 1 passes through the mounting hole 25 to be fixed on the fixed frame 11 of protection network, and wherein the inner wall of mounting hole 25 is equipped with the hoop, can prevent that mounting hole 25 from tearing under pulling by external force, can play fine guard action, can fix first protection network 1 middle part through bandage 24. The first protective net 1 is divided into an inner protective net 20 and an outer protective net 21, the inner protective net 20 is a protective net made of nylon material, the inner protective net 20 has strong elasticity, and the elasticity and the wear resistance are good under dry and wet conditions, the size is stable, and the shrinkage rate is small. The damage resistance of protection can be improved through reinforcing the muscle area 23 by stronger, can effectively prevent to strike and puncture first protection network 1. The outer protective net 21 is made of glass fiber, has the characteristics of good insulation property, strong heat resistance, good corrosion resistance, high mechanical strength and the like, can withstand long-term wind and sunshine, can make the first protective net 1 be used for multiple times, prolongs the service life of the first protective net, reduces the use cost, and has a warning effect by the arranged warning belt 28.

As shown in fig. 6, a universal wheel 29 is installed at the bottom of the supporting seat 3, cylinders 30 are installed on two sides of the universal wheel 29, the piston ends of the cylinders 30 are vertically arranged downwards, and fixing rods 31 are coaxially and fixedly connected to the piston ends of the cylinders 30. The universal wheel 29 is arranged to facilitate the movement of the whole device, when the device is moved to a working place, the air cylinder 30 is started, the piston end of the air cylinder 30 moves downwards to jack the whole device, and the whole device is supported by the air cylinder 30 at the moment, so that the universal wheel 29 is packed up to prevent the whole device from moving. When the work place is the earth, the fixing rod 31 is inserted into the earth under the action of the cylinder 30, so that the whole device is fixed, and the stability of the whole device is improved.

The working principle is as follows: when the first protective net 1 is driven to rise by the lifting block 10, the lifting screw 6 and the rotating rod 5, the second protective net 15 is pulled out from the through groove 16, and the net storage shaft 14 rotates to pay out the second protective net 15 wound on the net storage shaft 14. When the first protection net 1 needs to be lowered, the first protection net 1 is lowered to a designated position, then the net storage shaft 14 is manually rotated, the rotating direction is opposite to the first rotating direction of the net storage shaft 14, so that the paid-out second protection net 15 can be retracted into the net rolling barrel 13, the second protection net 15 is prevented from being damaged when not used, and the service life of the second protection net 15 is guaranteed.

The utility model discloses a set up and deposit when net device 12 can guarantee that first protection network 1 risees, can protect 1 lower extreme of first protection network to reach the effect of comprehensive protection, need not manual installation protection network at 1 lower extreme of first protection network once more, convenient to use, and the second protection network 15 that sets up can withdraw, damage when having avoided second protection network 15 not using has guaranteed the life of second protection network 15.

Example 2:

as shown in fig. 7 and 8, in this embodiment, on the basis of embodiment 1, the net rolling cylinder 13 is fixed at the bottom of the protective net fixing frame 11, the other end of the second protective net 15 extends from the through slot 16, and the extending end is fixedly connected with the upper surface of the supporting seat 3; a torsion spring 19 is sleeved outside the net storage shaft 14. Two torsion springs 19 are respectively arranged at two ends of the net storage shaft 14, and the connection mode of the two ends of the torsion springs 19 refers to the prior art and is not described herein again. When the first protection net 1 is raised, the second protection net 15 is paid out, thereby protecting the lower portion of the first protection net 1. When the second protective screening 15 is released, the net storage shaft 14 is driven to rotate, the torsion spring 19 generates torque in the rotating process of the net storage shaft 14, and when the first protective screening 1 is lowered, the second protective screening 15 is loosened and resets under the action of the torque of the torsion spring 19, namely, the torsion spring 19 enables the net storage shaft 14 to rotate reversely, so that the second protective screening 15 is retracted. The torsion spring 19 is arranged to realize the automatic retraction of the second protection net 15, so that the second protection net 15 can be automatically paid out or retracted along with the rising or falling of the first protection net 1, and the use is convenient.

Example 3:

as shown in fig. 9-11, in this embodiment, on the basis of embodiment 1, the fixed seat 32 is installed at the bottom of the supporting seat 3, the fixed seat 32 includes a supporting arm 33, a connecting arm 35, two parallel plates 37 and two suckers 39, the two connecting arms 35 are symmetrically disposed at two ends of the lower surface of the supporting arm 33, the two suckers 39 are disposed at the lower ends of the two connecting arms 35, respectively, the two parallel plates 37 are symmetrically disposed between the suckers 39 and the connecting arms 35, the two parallel plates 37 are fixedly connected with the suckers 39 and the connecting arms 35 through transverse plates 38, respectively, a connecting rod 41 is fixedly disposed on the supporting arm 33, the connecting rod 41 is fixedly connected with the lower surface of the supporting seat 3, a first channel 34 is disposed in the supporting arm 33, a second channel 36 is disposed in the connecting arms 35, a third channel 40 is, the third channel 40 is communicated with the sucking disc 39, one end of the first channel 34 is communicated to the outside of the supporting arm 33, the other end of the first channel 34 is communicated with one end of the second channel 36, the other end of the second channel 36 is communicated with the third channel 40, and one end of the first channel 34 communicated to the outside of the supporting arm 33 is provided with a first sealing device 42.

As shown in fig. 11, the first sealing device 42 includes a first spring 43, a blocking ball 44, a sealing plate 45 and a connecting column 27, the blocking ball is disposed in the first channel 34 and is fastened with one end of the first channel 34 communicated to the outside of the supporting arm 33, the sealing plate 45 is disposed outside the first channel 34 and is located above the blocking ball 44, two ends of the connecting column 27 are fixedly connected with the sealing plate 45 and the blocking ball 44, respectively, the first spring 43 is provided in plurality, and two ends of the first springs 43 are fixedly connected with the sealing plate 45 and the supporting arm 33, respectively.

When the working place is a place with higher ground strength, such as cement ground, the whole device can be fixed on the ground through the fixing seat 32. The fixing process comprises the following steps: the holder 32 is manually pressed downward. The suction cup 39 of the fixed seat 32 is stressed to exhaust the air in the suction cup 39 from the first channel 34, the second channel 36 and the third channel 40, so that negative pressure is formed in the suction cup 39. Under the action of the pressure difference, the fixed seat 32 is adsorbed on the ground. The parallel plate 37 is perpendicular to the ground, so the arrangement of the parallel plate 37 can ensure that the sucker 39 is sucked on the ground. The contact surfaces of the two are parallel to ensure the use condition of the device. During the process of air discharge from the first, second and third passages 34, 36 and 40, a portion of the air first acts on the ball 44 to push the ball 44 upward, while another portion of the air is discharged from the ball 44 and the first passage 34. When the blocking ball 44 moves upwards to be engaged with the upper end of the first channel 34, a negative pressure closed space is formed between the steel plate and the suction cup 39, so that the fixing seat 32 is fixed on the ground by suction.

The above-mentioned embodiments only express the specific embodiments of the present invention, and the description thereof is specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention.

Claims (6)

1. A construction site protection device comprises a first protection net and a supporting device connected with the first protection net, wherein the supporting device comprises a supporting seat, the supporting seat is provided with a rotating cavity, a rotating rod and a lifting screw rod are arranged in the rotating cavity, the upper ends of the rotating rod and the lifting screw rod are movably penetrated through the rotating cavity, the lower ends of the rotating rod and the lifting screw rod are movably connected with the rotating cavity through bearings, the rotating rod is connected with the lifting screw rod through gear transmission, the lifting screw rod is sleeved with a connecting rod, the connecting rod is connected with the first protection net, the connecting rod is provided with a lifting cavity, a lifting block is fixedly connected in the lifting cavity, the lifting screw rod is movably penetrated through the lifting block through threads, the construction site protection device is characterized in that the first protection net is fixedly connected onto a protection net fixing frame, a net storage device is arranged below the protection net, the net storage device comprises a net rolling barrel, a net storage shaft and a second protective net, a through groove is formed in the net rolling barrel along the axial direction, the net storage shaft is coaxially and rotatably connected into the net rolling barrel, the second protective net is wound on the net storage shaft, and one end of the second protective net is fixedly connected with the net storage shaft; two ends of the net storage shaft extend out of two ends of the net rolling barrel respectively.

2. The construction site protection device according to claim 1, wherein a first bevel gear is arranged on the lifting screw, the net winding drum is fixedly connected to the upper surface of the supporting seat, the other end of the second protective net extends out of the through groove, the extending end of the second protective net is fixedly connected with the bottom of the first protective net, and a second bevel gear meshed with the first bevel gear is arranged at the extending end of the net storage shaft.

3. The construction site protection device according to claim 1, wherein the net rolling cylinder is fixed at the bottom of the protective net fixing frame, the other end of the second protective net extends out of the through groove, and the extending end is fixedly connected with the upper surface of the supporting seat; and a torsional spring is sleeved outside the net storage shaft.

4. The construction site protection device according to claim 1, wherein the first protection net comprises an inner protection net, an outer protection net, support rods and reinforcing rib belts, the outer protection net is fixedly arranged at the bottom of the inner protection net, the surface of the inner protection net is fixedly provided with a binding band, the reinforcing rib belts are fixedly arranged on one side of the binding band, one side of each reinforcing rib belt is fixedly provided with a mounting hole, one side of each mounting hole is fixedly provided with a storage bag, the support rods are movably arranged in the inner cavity of the storage bag, and the outer surface of the storage bag is fixedly provided with warning belts.

5. The worksite protection device of claim 1, wherein the bottom of the supporting seat is provided with a universal wheel, the universal wheel is provided with air cylinders on two sides, piston ends of the air cylinders are vertically arranged downwards, and the piston ends of the air cylinders are coaxially fixedly connected with fixing rods.

6. The construction site protection device according to claim 1, wherein the bottom of the supporting seat is provided with a fixed seat, the fixed seat comprises a supporting arm, two connecting arms, two parallel plates and a sucker, the two connecting arms are symmetrically arranged at two ends of the lower surface of the supporting arm, the two suckers are respectively arranged at the lower ends of the two connecting arms, the two parallel plates are symmetrically arranged between the sucker and the connecting arms, the two parallel plates are respectively and fixedly connected with the sucker and the connecting arms through transverse plates, the supporting arm is fixedly provided with a connecting rod, the connecting rod is fixedly connected with the lower surface of the supporting seat, the supporting arm is internally provided with a first channel, the connecting arm is internally provided with a second channel, the upper end of the sucker is provided with a third channel, the third channel is communicated with the sucker, one end of the first channel is communicated with, the other end of the first channel is communicated with one end of the second channel, the other end of the second channel is communicated with the third channel, and a first sealing device is arranged at one end of the first channel communicated to the outside of the supporting arm;

the first sealing device comprises a first spring, a blocking ball, a sealing plate and a connecting column, the blocking ball is arranged in the first channel and communicated to one end of the supporting arm outside through the first channel, the sealing plate is arranged outside the first channel and located above the blocking ball, two ends of the connecting column are fixedly connected with the sealing plate and the blocking ball respectively, the first spring is provided with a plurality of springs, and the two ends of the first spring are fixedly connected with the sealing plate and the supporting arm respectively.

Images