Engineering protective net

Abstract

The utility model belongs to the technical field of engineering protective nets, and particularly relates to an engineering protective net which comprises a supporting box, a supporting shaft, a cylindrical box, a winding and unwinding roller, a protective roller shutter, a first limiting assembly, a second limiting assembly, a supporting moving assembly and a spiral spring. A partition plate is fixedly installed on the inner side wall of the supporting box, the supporting shaft is rotatably installed on the supporting box and the partition plate, the cylindrical box is rotatably installed on the supporting shaft, the winding and unwinding roller is fixedly installed on the supporting shaft and located in the cylindrical box, a strip-shaped opening is formed in the cylindrical box, the protection roller blind is fixedly arranged on the winding and unwinding roller in a wound mode, and the protection roller blind is fixedly installed on the supporting shaft and located in the cylindrical box. The end, away from the winding and unwinding roller, of the protective roller shutter penetrates through the strip-shaped opening and is fixedly provided with a strip-shaped plate. The device is reasonable in design, convenient to quickly fold and unfold, convenient to adjust the length, good in use flexibility, convenient to move, support and fix, and capable of being matched with a plurality of devices for use.

Description

Technical Field

[0001] The utility model relates to the technical field of engineering protection nets, and particularly relates to an engineering protection net. Background Technique

[0002] During the process of engineering construction, in order to prevent safety accidents at the construction site and ensure the safety of construction workers, it is necessary to use engineering protection nets for enclosure in many cases.

[0003] Referring to the "Engineering Protection Net" with the authorized announcement number CN 220336652 U, by providing a double-headed screw B and two sets of adjusting seats, it realizes the effect of driving two sets of adjusting plates to rotate in opposite directions simultaneously; it plays a role in adjusting the distance between the two sets of side protection nets according to the protection range; it is beneficial to adjust the size of the protection net according to the protection range, solves the problem that the existing protection nets are usually set as an integral structure, which limits the use range of the protection net, makes it inconvenient to adjust the size of the protection net according to the protection range, thus reducing the applicability and practicability of the protection net, affecting the use range of the protection net, and it is not convenient to fixedly connect two adjacent sets of protection nets, thus reducing the stability of the protection net during use.

[0004] The utility model provides another solution to solve the above problems.

[0005] The information disclosed in this background art section is only intended to enhance the overall understanding of the utility model and should not be regarded as an admission or any form of suggestion that this information constitutes prior art already known to those of ordinary skill in the art. Summary of the Utility Model

[0006] The purpose of the utility model is to propose an engineering protection net to solve the disadvantages mentioned in the above background art.

[0007] The above technical purpose of the utility model is achieved through the following technical solutions: an engineering protection net, comprising a support box, a support shaft, a cylindrical box, a winding and unwinding roller, a protection roller blind, a first limiting component, a second limiting component, a support moving component and a coil spring;

[0008] A partition is fixedly installed on the inner side wall of the support box. The support shaft is rotatably installed on the support box and the partition. The cylindrical box is rotatably installed on the support shaft. The winding and unwinding roller is fixedly installed on the support shaft and is located inside the cylindrical box. A strip-shaped opening is formed in the cylindrical box. The protective rolling curtain is fixedly wound around the winding and unwinding roller. One end of the protective rolling curtain away from the winding and unwinding roller penetrates through the strip-shaped opening and is fixedly installed with a strip-shaped plate. The first limiting component is arranged at the top end of the support shaft and is connected with the cylindrical box. The second limiting component is arranged on the cylindrical box and is connected with the support box. The support moving component is arranged on the support box. The coil spring is fixedly installed on the support shaft and the inner side wall of the support box.

[0009] Preferably, the first limiting component includes a turntable, a first limiting screw rod and a plurality of limiting holes. The top end of the support shaft extends above the cylindrical box and is fixedly sleeved with a turntable. The first limiting screw rod is threadedly installed on the turntable. A plurality of limiting holes are formed in the top of the cylindrical box centered on the support shaft. The bottom end of the first limiting screw rod extends into the corresponding limiting hole.

[0010] Preferably, the second limiting component includes a fixed block, a second limiting screw rod and a plurality of threaded holes. A plurality of threaded holes are formed in the top of the support box centered on the support shaft. The bottom outer side of the cylindrical box is fixedly installed with a fixed block. The second limiting screw rod is threadedly installed on the fixed block. The bottom end of the second limiting screw rod is threadedly installed in the corresponding threaded hole.

[0011] Preferably, the support moving component includes a lifting plate and four universal wheels. The lifting plate is slidably installed on the inner side wall of the support box. Universal wheels are fixedly installed at the four corners of the bottom side of the lifting plate. Rectangular openings are formed at the four corners of the bottom of the support box. The four universal wheels are respectively adapted to the corresponding rectangular openings.

[0012] Preferably, the support moving component further includes two fixing plates, four legs and two mounting plates. Fixing plates are fixedly installed on both sides of the support box. Two legs are vertically slidably installed on each of the two fixing plates. The tops of the two legs on the same fixing plate are fixedly installed with the same mounting plate.

[0013] Preferably, the support moving component further includes four toothed plates and two gears. Mounting openings are formed on the inner walls of both sides of the support box. Gears are rotatably installed in the two mounting openings. Toothed plates are fixedly installed at both sides of the lifting plate and at both ends of the bottom sides of the two mounting plates. The two toothed plates on the same side are meshingly installed on the same gear.

[0014] Preferably, the support moving component further includes a third limiting screw rod. The third limiting screw rod is rotatably installed on the left fixing plate and is threadedly installed on the left mounting plate.

[0015] Preferably, adjusting wheels are fixedly sleeved on the tops of the first limiting screw rod, the second limiting screw rod, and the third limiting screw rod.

[0016] Preferably, a plurality of limiting card slots are formed on the side of the strip-shaped plate away from the protective rolling curtain.

[0017] Preferably, a strip-shaped groove is formed on the side of the strip-shaped plate away from the protective rolling curtain, and a magnetic block is fixedly installed in the strip-shaped groove.

[0018] The beneficial effects of the present utility model are as follows: Through the cooperation of the support box, the support shaft, the cylindrical box, the winding and unwinding roller, the rolling curtain, the first limiting component, the second limiting component, the support moving component, and the coil spring, the unfolding and winding states of the protective rolling curtain can be controlled. At the same time, the orientation of the protective rolling curtain can be adjusted and limited as needed. It can not only conveniently and quickly exert the engineering protection effect, but also adjust the unfolding length according to actual use needs, greatly improving the flexibility of use. And when the protective rolling curtain is not needed, the device can be stored to avoid occupying floor space, and it is also convenient to move the device, having good use convenience. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required for description in the embodiments. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained according to these drawings.

[0020] Figure 1 It is a three-dimensional structural schematic diagram of an engineering protection net proposed by the present utility model;

[0021] Figure 2 It is a sectional structural schematic diagram of an engineering protection net proposed by the present utility model;

[0022] Figure 3 It is a partial three-dimensional structural schematic diagram of an engineering protection net proposed by the present utility model.

[0023] In the figure: 1, support box; 11, partition; 2, support shaft; 21, winding and unwinding roller; 22, turntable; 23, first limiting screw rod; 24, coil spring; 3, cylindrical box; 31, fixed block; 32, second limiting screw rod; 4, protective rolling curtain; 41, strip-shaped plate; 42, limiting card slot; 43, magnetic block; 5, lifting plate; 51, universal wheel; 6, fixing plate; 61, leg; 62, mounting plate; 63, gear; 64, toothed plate; 65, third limiting screw rod. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] The technical solution of the present utility model will be clearly and completely described below in conjunction with specific embodiments. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the scope of protection of the present utility model.

[0025] Refer to Figures 1 - 3, an engineering protection net, comprising a support box 1, a support shaft 2, a cylindrical box 3, a winding and unwinding roller 21, a protective rolling curtain 4 and a coil spring 24. A partition 11 is fixedly installed on the inner side wall of the support box 1. The support shaft 2 is rotatably installed on the support box 1 and the partition 11. The cylindrical box 3 is rotatably installed on the support shaft 2. The winding and unwinding roller 21 is fixedly installed on the support shaft 2 and is located inside the cylindrical box 3. A strip-shaped opening is provided on the cylindrical box 3. The protective rolling curtain 4 is fixedly wound around the winding and unwinding roller 21. One end of the protective rolling curtain 4 away from the winding and unwinding roller 21 penetrates through the strip-shaped opening and is fixedly installed with a strip-shaped plate 41. The top end of the support shaft 2 extends above the cylindrical box 3 and is fixedly sleeved with a turntable 22. A limiting lead screw 23 is threadedly installed on the turntable 22. A plurality of limiting holes are provided at the top of the cylindrical box 3 centered on the support shaft 2. The bottom end of the limiting lead screw 23 extends into the corresponding limiting hole, which can limit the relative position between the cylindrical box 3 and the support shaft 2, thereby avoiding the continuous rotation of the winding and unwinding roller 21. A plurality of screw holes are provided at the top of the support box 1 centered on the support shaft 2. A fixing block 31 is fixedly installed at the outer bottom of the cylindrical box 3. A limiting lead screw 32 is threadedly installed on the fixing block 31. The bottom end of the limiting lead screw 32 is threadedly installed in the corresponding screw hole, which can limit the position of the cylindrical box 3, thereby enabling the adjustment and limitation of the orientation of the strip-shaped opening as required. A lifting plate 5 is slidably installed on the inner side wall of the support box 1. Universal wheels 51 are fixedly installed at the four corners of the bottom side of the lifting plate 5. Rectangular openings are provided at the four corners of the bottom of the support box 1. The four universal wheels 51 are respectively adapted to the corresponding rectangular openings, which can make the universal wheels 51 extend below the support box 1 when the lifting plate 5 moves downward, thus facilitating the movement of the device. Fixing plates 6 are fixedly installed on both sides of the support box 1. Two legs 61 are vertically slidably installed on each of the two fixing plates 6. The tops of the two legs 61 located on the same fixing plate 6 are fixedly installed with the same mounting plate 62, which can control the legs 61 to provide stable support for the support box 1 when the mounting plate 62 moves downward, and can also store the legs 61 when the mounting plate 62 moves upward. Mounting openings are provided on the inner side walls of both sides of the support box 1. Gears 63 are rotatably installed in the two mounting openings. Tooth plates 64 are fixedly installed at both sides of the lifting plate 5 and at both ends of the bottom sides of the two mounting plates 62. The two tooth plates 64 located on the same side are meshingly installed on the same gear 63, which can make the mounting plate 62 move upward when the lifting plate 5 moves downward, thereby enabling the quick adjustment of the universal wheels 51 or the legs 61 to provide support for the device as required. A limiting lead screw 65 is rotatably installed on the fixing plate 6 on the left side. The limiting lead screw 65 is threadedly installed on the mounting plate 62 on the left side, which can adjust the height of the mounting plate 62 as required. The coil spring 24 is fixedly installed on the inner side wall of the support shaft 2 and the support box 1.

[0026] In this embodiment, in order to facilitate the operator to manually rotate the first limit screw rod 23, the second limit screw rod 32, and the third limit screw rod 65, adjusting wheels are fixedly sleeved on the tops of the first limit screw rod 23, the second limit screw rod 32, and the third limit screw rod 65 respectively.

[0027] In this embodiment, in order to facilitate the connection of the two strip plates 41 when two such devices are used in combination, a plurality of limit card slots 42 are formed on the side of the strip plate 41 away from the protective rolling curtain 4.

[0028] In this embodiment, in order to facilitate the temporary fixation of the two strip plates 41 when two such devices are used in combination, a strip groove is formed on the side of the strip plate 41 away from the protective rolling curtain 4, and a magnetic block 43 is fixedly installed in the strip groove. The magnetic block 43 can be a permanent magnetic chuck.

[0029] Working principle: First, move the two such devices to the required position with the cooperation of the universal wheels 51, and then adjust the mounting plate 62 downward through the third limit screw rod 65, so that a plurality of legs 61 can be in contact with the ground. Then, fix the legs 61 to complete the fixation of the position. When the mounting plate 62 is adjusted downward, the lifting plate 5 can drive the universal wheels 51 to move upward and be stored under the cooperation of the gear 63 and the toothed plate 64. Then, screw out the second limit screw rod 32 from the screw hole and adjust the strip opening on the cylindrical box 3 to the required orientation, and then threadedly install the third limit screw rod 65 in the corresponding screw hole, so as to prevent the cylindrical box 3 from rotating by itself when the protective rolling curtain 4 is unfolded. Screw out the first limit screw rod 23 from the limit hole to release the limit on the support shaft 2. After the positions of the two such devices are both fixed, pull the strip plates 41 on the two devices to move towards each other. After the two strip plates 41 are close to each other, place the externally provided U-shaped clamping plate in the two limit card slots 42 on the same horizontal plane, and with the approach of the two strip plates 41, adsorption fixation can be achieved under the action of the magnetic block 43. At the same time, under the action of the externally provided U-shaped clamping plate, it can be prevented that the two strip plates 41 are directly and completely disconnected when the protective rolling curtain 4 is subjected to an external force. After the strip plates 41 on the two such devices are connected, the support shaft 2 is limited by the first limit screw rod 23 in cooperation with the limit hole to prevent the support shaft 2 from rotating by itself. In order to further improve the stability of the device in the unfolded state, a U-shaped channel steel (referring to the channel steel installed on both sides of the door frame for guiding the rolling curtain in the known prior art of rolling doors) can be clamped on the top side of the protective rolling curtain 4 in the unfolded state, so as to further improve the stability in the unfolded state.

[0030] After use, disconnect the connection between the strip plates 41 on the two devices, and release the limiting relationship between the support shaft 2 and the cylindrical box 3 through the limiting screw rod, so that the support shaft 2 can drive the winding and unwinding roller 21 to store the protective rolling curtain 4 under the action of the coil spring 24, greatly reducing the space occupied by the device in the idle state.

[0031] The above has introduced in detail an engineering protection net provided by the present utility model. Specific embodiments are used in this article to elaborate on the principle and implementation manner of the present utility model. The description of the above embodiments is only used to help understand the method and its core idea of the present utility model. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the principle of the present utility model, several improvements and modifications can still be made to the present utility model, and these improvements and modifications also fall within the protection scope of the claims of the present utility model.

Claims

1. An engineering protection net, characterized in that, It includes a support box (1), a support shaft (2), a cylindrical box (3), a winding and unwinding roller (21), a protective rolling curtain (4), a first limiting component, a second limiting component, a support moving component and a coil spring (24); A partition plate (11) is fixedly installed on the inner side wall of the support box (1). The support shaft (2) is rotatably installed on the support box (1) and the partition plate (11). The cylindrical box (3) is rotatably installed on the support shaft (2). The winding and unwinding roller (21) is fixedly installed on the support shaft (2) and is located inside the cylindrical box (3). A strip-shaped opening is formed in the cylindrical box (3). The protective rolling curtain (4) is fixedly wound around the winding and unwinding roller (21). One end of the protective rolling curtain (4) away from the winding and unwinding roller (21) penetrates through the strip-shaped opening and is fixedly installed with a strip-shaped plate (41). The first limiting component is arranged at the top end of the support shaft (2) and is connected to the cylindrical box (3). The second limiting component is arranged on the cylindrical box (3) and is connected to the support box (1). The support moving component is arranged on the support box (1). The coil spring (24) is fixedly installed on the inner side wall of the support shaft (2) and the support box (1); The first limiting component includes a turntable (22), a first limiting screw rod (23) and a plurality of limiting holes. The top end of the support shaft (2) extends above the cylindrical box (3) and is fixedly sleeved with the turntable (22). The first limiting screw rod (23) is threadedly installed on the turntable (22). A plurality of limiting holes are formed in the top of the cylindrical box (3) centered on the support shaft (2). The bottom end of the first limiting screw rod (23) extends into the corresponding limiting hole; The second limiting component includes a fixed block (31), a second limiting screw rod (32) and a plurality of screw holes. A plurality of screw holes are formed in the top of the support box (1) centered on the support shaft (2). The fixed block (31) is fixedly installed at the outer bottom of the cylindrical box (3). The second limiting screw rod (32) is threadedly installed on the fixed block (31). The bottom end of the second limiting screw rod (32) is threadedly installed in the corresponding screw hole.

2. The engineering protection net according to claim 1, characterized in that: The support moving component includes a lifting plate (5) and four universal wheels (51). The lifting plate (5) is slidably installed on the inner side wall of the support box (1). Universal wheels (51) are fixedly installed at the four corners of the bottom side of the lifting plate (5). Rectangular openings are formed at the four corners of the bottom of the support box (1). The four universal wheels (51) are respectively adapted to the corresponding rectangular openings.

3. The engineering protection net according to claim 1, characterized in that: The support moving component further includes two fixing plates (6), four support legs (61) and two mounting plates (62). Fixing plates (6) are fixedly installed on both sides of the support box (1). Two support legs (61) are vertically slidably installed on each of the two fixing plates (6). The tops of the two support legs (61) located on the same fixing plate (6) are fixedly installed with the same mounting plate (62).

4. The engineering protection net according to claim 3, characterized in that: The support moving component further includes four toothed plates (64) and two gears (63). Installation openings are formed in the inner walls on both sides of the support box (1), and two gears (63) are rotatably installed in the two installation openings. Toothed plates (64) are fixedly installed at both sides of the lifting plate (5) and at both ends of the bottom sides of the two mounting plates (62). The two toothed plates (64) on the same side are meshingly installed on the same gear (63).

5. The engineering protection net according to claim 3, characterized in that: The support moving component further includes a third limiting lead screw (65). The third limiting lead screw (65) is rotatably installed on the fixing plate (6) on the left side, and the third limiting lead screw (65) is threadedly installed on the mounting plate (62) on the left side.

6. The engineering protection net according to claim 5, characterized in that: Adjusting wheels are fixedly sleeved on the tops of the first limiting lead screw (23), the second limiting lead screw (32), and the third limiting lead screw (65).

7. The engineering protection net according to claim 1, characterized in that: A plurality of limiting card slots (42) are formed on the side of the strip plate (41) away from the protective rolling curtain (4).

8. The engineering protection net according to claim 1, characterized in that: A strip-shaped groove is formed on the side of the strip plate (41) away from the protective rolling curtain (4), and a magnetic block (43) is fixedly installed in the strip-shaped groove.

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