CN211646017U - A kind of protective device for bridge construction - Google Patents

Abstract

The utility model relates to the technical field of bridge construction, and discloses a protective device for bridge construction. There is a pulling net device. The protective device for bridge construction can be quickly and stably fixed on the periphery of the bridge through the cooperation of various structures, and the installation method is simple, which reduces the time consumed by erecting protective facilities, thereby speeding up the construction efficiency. It cooperates with the support rod to stabilize and improve the stability. When not in use, the protective net is rolled up in the net cylinder to avoid damage to the protective net during storage and storage. , reducing long-term construction costs.

Description

A kind of protective device for bridge construction

technical field

The utility model relates to the technical field of bridge construction, in particular to a protection device for bridge construction.

Background technique

Bridges generally refer to structures erected on rivers, lakes and seas to enable vehicles and pedestrians to pass smoothly. With the development of economy and transportation, bridge construction is becoming more and more important. During bridge construction, scaffolding is usually erected around the bridge. , and then hang the construction green net on the periphery of the scaffolding for safety protection, and at the same time to avoid items falling during construction and injuring the staff, but the erection time is long, resulting in low construction efficiency, and such protective devices are easily damaged. , the service life is short, and it is not conducive to repeated use, resulting in high cost.

SUMMARY OF THE INVENTION

(1) Technical problems solved

In view of the deficiencies of the prior art, the utility model provides a protective device for bridge construction, which solves the problems of low construction efficiency and short service life of the protective device that are not conducive to multiple use due to long erection time of the existing protective facilities.

(2) Technical solutions

In order to achieve the above-mentioned purpose of being convenient for rapid erection and improving the service life, the utility model provides the following technical scheme: a protective device for bridge construction, comprising a top plate, the rear end of the top plate is fixedly connected with a fixing device, and the fixing device is articulated with a net A rack device, the upper surface of the top plate is fixedly connected with a pulling net device.

Preferably, the fixing device includes a threaded sleeve, a screw, a swivel, a splint and a nut, the threaded sleeve is fixedly connected to the rear end of the top plate, the screw is movably sleeved with the threaded sleeve through the thread, and the top end of the screw is fixedly connected to the swivel, The bottom end of the screw passes through the splint and is fixedly connected with the nut, and the screw is movably plugged into the splint through the thread, the top plate is placed on the bridge deck at the periphery of the bridge, and the splint is placed at the bottom of the bridge, and then the screw is rotated by the swivel ring. Tighten so that the splint and the top plate are clamped to the outside of the bridge.

Preferably, the net rack device includes a net cylinder, a net closing rod, a protective net, a net port, a side rod, a chute, a sliding rod, a clamping block, a sliding block and a strut, and the net cylinder moves through the rear end of the hinge and the splint. Hinged, the net receiving rod is located inside the net cylinder, and the two ends of the net collecting rod are fixedly connected with the inner wall of the net cylinder through bearings, one end of the protective net is fixedly connected with the net collecting rod, and the protective net is movably sleeved with the net collecting rod, The mesh port is opened on the side of the mesh cylinder away from the splint and communicated with the interior of the mesh cylinder. One end of the side rod is fixedly connected to the side of the mesh cylinder away from the splint and is located at both ends. The chute is opened on the opposite side of the rods on both sides. , the two ends of the sliding rod are movably clamped with the chute, the end of the protective net away from the receiving rod is fixedly connected with the sliding rod, the clamping block is fixedly connected to the side of the side rod close to the top plate, the sliding block is movably clamped with the clamping block, the support The rod is hinged with the slider through a hinge, and the end of the strut away from the slider is fixedly connected to both sides of the top plate through the rotating shaft. The strut is rotated to the level, and the slider slides along the block to push the side rod to rotate the net cylinder, thereby When the side bar and the net cylinder are opened, and the sliding bar is pulled along the chute, the protective net on the outer surface of the net collecting bar can be pulled out.

Preferably, the net pulling device includes a reel, a spacer, a toothed disc, a turning handle, a card box, a fixing block, a pressure port, a pressing block, a spring, a wire rope and a pulley, and the reel is fixedly connected to the top plate through a reel frame The spacer ring is fixedly connected to the outer surface of the reel and is located in the middle section, the reel passes through the reel frame through the rotating shaft and is fixedly connected to the toothed disc, and the turn handle is fixedly connected to the side of the toothed disc away from the reel. , the card box is fixedly connected to the upper surface of the top plate, and is located below the toothed plate, the fixed block is movably connected with the card box, the pressure port is opened on the front of the card box, one end of the pressure block is fixedly connected with the fixed block, and the pressure block is far away from the fixed block. One end of the block is movably clamped with the pressure port and extends to the outside of the cassette, both ends of the spring are fixedly connected to the bottom of the fixed block and the inner bottom wall of the cassette, one end of the wire rope is fixedly connected to the reel, and the wire rope is fixedly connected to the spool. The reel is movably sleeved, the pulley is fixedly connected to the end of the side rod away from the mesh cylinder through the wheel frame, the end of the wire rope away from the reel is movably sleeved with the outer ring of the pulley, and its end passes through the side rod away from the mesh cylinder. One end extends into the chute, press the pressing block to make the fixed block move down and disengage from the toothed disc, and turn the toothed disc by turning the handle to drive the spool to rotate, the wire ropes on both sides of the spacer ring can be reeled at the same time, and the wire ropes pass through the pulley. The outer ring pulls the sliding rod along the chute, and pulls out the protective net. When the sliding rod is pulled to the end of the chute, the pressure block is released. Under the elastic force of the spring, the fixed block moves up and resets. The outer ring engages to fix the chainring.

Preferably, the width of the strut is equal to the thickness of the top plate, and the strut is located on the side of the top plate and at the front end of the top plate through the connection between the rotating shaft and the top plate. When the top plate is pressed against the bridge deck, the strut is pushed and rotated to In a horizontal state, the side bar and the net cylinder are stretched.

Preferably, the side of the mesh cylinder close to the splint and the rear end of the splint are in an arc shape, which is convenient for the mesh cylinder to rotate along the rear end of the splint.

Preferably, the top end of the fixed block is an arc shape adapted to the outer ring of the toothed plate, and the top end is provided with a tooth slot that is adapted to the teeth of the outer ring of the toothed plate. The outer ring of the disc meshes to fix the toothed disc.

Preferably, one end of the wire rope located inside the chute is fixedly connected to the two ends of the sliding rod respectively, and the two wire ropes are respectively located on the left and right sides of the spacer ring and are connected to the reel. When the reel rotates, it can be simultaneously Rewind two wire ropes and pull the slide bar to move along the chute.

Compared with the prior art, the utility model provides a protective device for bridge construction, which has the following beneficial effects:

1. The protective device for bridge construction can be quickly and stably fixed to the periphery of the bridge through the cooperation of various structures, and the installation method is simple, which reduces the time consumed by erecting protective facilities, thereby accelerating the construction efficiency.

2. The protective device for bridge construction is stabilized by the cooperation of the steel wire rope and the support rod, which improves the stability. Its service life is conducive to the repeated use of the device, and the long-term construction cost is reduced.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is a structural representation at A in Fig. 1;

Fig. 3 is a sectional view at B-B in Fig. 1;

Fig. 4 is a structural representation at C in Fig. 3;

Fig. 5 is the structural representation at D in Fig. 3;

FIG. 6 is a schematic diagram of the structure at E in FIG. 3 .

Among them: 1. Top plate; 2. Fixing device; 201, threaded sleeve; 202, screw rod; 203, swivel ring; 204, splint; 205, nut; ;303, protective net; 304, net port; 305, side bar; 306, chute; 307, sliding bar; 308, clamping block; 309, slider; 310, strut; 4, pulling net device; 401, roll Spool; 402, spacer; 403, gear plate; 404, turning handle; 405, cassette; 406, fixed block; 407, pressure port; 408, pressure block; 409, spring; 410, wire rope; 411, pulley.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

Please refer to FIGS. 1-6 , the present utility model provides a protective device for bridge construction, comprising a roof 1 , a fixing device 2 is fixedly connected to the rear end of the roof 1 , the fixing device 2 is hinged with a grid device 3 , and the upper part of the roof 1 is A mesh pulling device 4 is fixedly connected to the surface.

The fixing device 2 includes a threaded sleeve 201, a screw 202, a swivel 203, a splint 204 and a nut 205. The threaded sleeve 201 is fixedly connected to the rear end of the top plate 1, and the screw 202 is movably sleeved with the threaded sleeve 201 through threads. It is fixedly connected with the swivel 203, the bottom end of the screw 202 passes through the splint 204 and is fixedly connected with the nut 205, and the screw 202 is movably inserted into the splint 204 through the thread, and the top plate 1 is placed on the bridge deck at the periphery of the bridge, and the The splint 204 is placed at the bottom of the bridge, and then the screw 202 is rotated by the swivel ring 203 to tighten it, so that the splint 204 and the top plate 1 are matched and clamped on the outside of the bridge, so as to be quickly installed.

The net rack device 3 includes a net cylinder 301, a net closing rod 302, a protective net 303, a net port 304, a side rod 305, a chute 306, a sliding rod 307, a clamping block 308, a sliding block 309 and a strut 310. The net cylinder 301 passes through The hinge is hinged with the rear end of the splint 204, the net receiving rod 302 is located inside the net cylinder 301, and the two ends of the net collecting rod 302 are fixedly connected to the inner wall of the net cylinder 301 through bearings, and one end of the protective net 303 is connected to the net receiving rod 302. Fixed connection, and the protective net 303 is movably sleeved with the net receiving rod 302, the net port 304 is opened on the side of the net cylinder 301 away from the splint 204 and communicated with the interior of the mesh cylinder 301, and one end of the side rod 305 is away from the splint with the mesh cylinder 301. One side of the 204 is fixedly connected and located at both ends, the chute 306 is opened on the opposite side of the rods 305 on both sides, the two ends of the sliding rod 307 are movably clamped with the chute 306, and the protective net 303 is away from one end of the net receiving rod 302 It is fixedly connected with the sliding rod 307, the clamping block 308 is fixedly connected to the side of the side rod 305 close to the top plate 1, the sliding block 309 is movably clamped with the clamping block 308, the strut 310 is hinged with the sliding block 309 through a hinge, and the strut 310 is far away One end of the slider 309 is fixedly connected with the two sides of the top plate 1 through the rotating shaft, the width of the strut 310 is equal to the thickness of the top plate 1, and the strut 310 is located on the side of the top plate 1 and at the front end of the top plate 1 through the connection between the rotating shaft and the top plate 1, The side of the mesh cylinder 301 close to the splint 204 and the rear end of the splint 204 are in an arc shape that matches. When the top plate 1 and the splint 204 are clamped on the outside of the bridge, the bridge deck will rotate the strut 310 to the level, and pass the slider 309 Sliding along the block 308 to push the side bar 305 to rotate the mesh cylinder 301, thereby propping up the side rod 305 and the mesh cylinder 301, when the sliding rod 307 is pulled along the chute 306, the protective net 303 on the outer surface of the mesh rod 302 can be pulled. Pull out.

The net pulling device 4 includes a reel 401, a spacer ring 402, a toothed disc 403, a turning handle 404, a card box 405, a fixed block 406, a pressure port 407, a pressure block 408, a spring 409, a wire rope 410 and a pulley 411, the reel 401 is fixedly connected to the upper surface of the top plate 1 through the reel frame, the spacer ring 402 is fixedly connected to the outer surface of the reel 401 and is located in the middle section, the reel 401 passes through the reel frame through the rotating shaft and is fixedly connected with the toothed disc 403, The 404 is fixedly connected to the side of the toothed plate 403 away from the reel 401, the card box 405 is fixedly connected to the upper surface of the top plate 1, and is located below the toothed plate 403, the fixed block 406 is movably clamped with the card box 405, and the pressure port 407 is opened on the front of the card box 405, one end of the pressure block 408 is fixedly connected with the fixing block 406, and one end of the pressure block 408 away from the fixing block 406 is movably clamped with the pressure port 407 and extends to the outside of the card box 405. The ends are respectively fixedly connected to the bottom of the fixing block 406 and the inner bottom wall of the cassette 405, one end of the wire rope 410 is fixedly connected to the reel 401, and the wire rope 410 is movably sleeved with the reel 401, and the pulley 411 is fixedly connected through the wheel frame At the end of the side bar 305 away from the mesh cylinder 301, the end of the wire rope 410 away from the reel 401 is movably sleeved with the outer ring of the pulley 411, and its end passes through the end of the side bar 305 away from the mesh cylinder 301 and extends to the chute In 306, the top end of the fixed block 406 is an arc shape adapted to the outer ring of the toothed plate 403, and the top end is provided with a tooth groove that is adapted to the teeth of the outer ring of the toothed plate 403, and the wire rope 410 is located in the chute 306. One end of the inner part is fixedly connected with the two ends of the sliding rod 307 respectively, and the two steel wire ropes 410 are respectively located on the left and right sides of the spacer ring 402 to be connected to the reel 401, and the pressing block 408 is pressed to move the fixing block 406 downward and disengage from the teeth. The disc 403, through the turning handle 404, rotates the toothed disc 403 to drive the spool 401 to rotate, and can simultaneously rewind the wire rope 410 on both sides of the spacer ring 402, and the wire rope 410 passes through the outer ring of the pulley 411 and pulls the slide bar 307 along the chute 306, When the protective net 303 is pulled out and the sliding rod 307 is pulled to the end of the chute 306, the pressure block 408 is released, and under the elastic force of the spring 409, the fixing block 406 moves up and resets, and its upper end is connected to the outer surface of the toothed plate 403. The toothed plate 403 is fixed by the ring engagement. Through the cooperation between the various structures, it can be quickly and stably fixed to the periphery of the bridge, and the installation method is simple, which reduces the time consumed by erecting protective facilities, thereby speeding up the construction efficiency. 410 cooperates with the support rod 310 to stabilize and improve the stability. When not in use, the protective net 303 is rolled up in the net cylinder 301 to avoid damage to the protective net 303 during storage and storage, improve its service life, and is beneficial to The device is used many times, which reduces the long-term construction cost.

When in use, the top plate 1 is placed on the bridge deck at the periphery of the bridge, and the splint 204 is placed at the bottom of the bridge, the bridge deck pushes the strut 310 to rotate to the horizontal, and the slider 309 slides along the block 308 to push the side bar 305 rotates the mesh cylinder 301 to open the side bar 305 and the mesh cylinder 301, and at the same time rotate the screw 202 through the swivel ring 203 and tighten it, so that the splint 204 and the top plate 1 are matched and clamped on the outside of the bridge, and the pressing block 408 is pressed to make the fixing block 406 Move down to separate from the toothed plate 403, use the turning handle 404 to rotate the spool 401 through the toothed plate 403, thereby winding the two wire ropes 410, and the wire ropes 410 pull the sliding rod 307 along the chute 306 through the outer ring of the pulley 411, so as to rewind the reel 410. The protective net 303 rolled on the outer surface of the net take-up rod 302 is pulled out along the side rod 305, thereby spreading the protective net 303. When the sliding rod 307 is pulled to the end of the chute 306, the protective net 303 is spread out and the pressure is released. Block 408, the fixed block 406 is moved up and reset by the elastic force of the spring 409, and the top of the fixed block 406 meshes with the outer ring of the toothed plate 403 again to fix the toothed plate 403.

Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes and modifications can be made to these embodiments without departing from the principles and spirit of the present invention , alternatives and modifications, the scope of the present invention is defined by the appended claims and their equivalents.

Claims (8)

1. The utility model provides a protector is used in bridge construction, includes roof (1), its characterized in that: the rear end fixedly connected with fixing device (2) of roof (1), fixing device (2) activity hinge joint have rack device (3), and the last fixed surface of roof (1) is connected with draws in net device (4).

2. The protection device for bridge construction according to claim 1, characterized in that: fixing device (2) are including thread bush (201), screw rod (202), change (203), splint (204) and nut (205), thread bush (201) fixed connection in the rear end of roof (1), and screw rod (202) cup joint through screw thread and thread bush (201) activity, the top and change (203) fixed connection of screw rod (202), the bottom of screw rod (202) pass splint (204) and with nut (205) fixed connection, and screw rod (202) are pegged graft through screw thread and splint (204) activity.

3. The protection device for bridge construction according to claim 2, characterized in that: the net rack device (3) comprises a net barrel (301), a net retracting rod (302), a protective net (303), a net opening (304), side rods (305), a sliding groove (306), a sliding rod (307), a clamping block (308), a sliding block (309) and a supporting rod (310), wherein the net barrel (301) is movably hinged with the rear end of the clamping plate (204) through a hinge, the net retracting rod (302) is positioned inside the net barrel (301), two ends of the net retracting rod (302) are fixedly connected with the inner wall of the net barrel (301) through bearings, one end of the protective net (303) is fixedly connected with the net retracting rod (302), the protective net (303) is movably sleeved with the net retracting rod (302), the net opening (304) is arranged at one side of the net barrel (301) far away from the clamping plate (204) and communicated with the inside of the net barrel (301), one end of the side rod (305) is fixedly connected with one side of the net barrel (301) far away from the clamping plate (204) and positioned at two ends of the side rod, the sliding groove (306) is arranged, the two ends of the sliding rod (307) are movably clamped with the sliding groove (306), one end, far away from the net receiving rod (302), of the protective net (303) is fixedly connected with the sliding rod (307), the clamping block (308) is fixedly connected to one side, close to the top plate (1), of the side rod (305), the sliding block (309) is movably clamped with the clamping block (308), the support rod (310) is movably hinged with the sliding block (309) through a hinge, and one end, far away from the sliding block (309), of the support rod (310) is fixedly connected with the two sides of the top plate (1) through a rotating shaft.

4. The protection device for bridge construction according to claim 3, characterized in that: the net pulling device (4) comprises a winding drum (401), a spacer ring (402), a fluted disc (403), a rotating handle (404), a clamping box (405), a fixing block (406), a pressure opening (407), a pressing block (408), a spring (409), a steel wire rope (410) and a pulley (411), wherein the winding drum (401) is fixedly connected to the upper surface of the top plate (1) through a drum frame, the spacer ring (402) is fixedly connected to the outer surface of the winding drum (401) and is arranged in the middle section of the winding drum, the winding drum (401) penetrates through the drum frame through a rotating shaft and is fixedly connected with the fluted disc (403), the rotating handle (404) is fixedly connected with one side, far away from the winding drum (401), of the fluted disc (403), the clamping box (405) is fixedly connected to the upper surface of the top plate (1) and is arranged below the fluted disc (403), the fixing block (406) is movably clamped with the clamping box (405), the pressure opening (407) is arranged on the front face of the clamping box, one end of the pressing block (408) far away from the fixing block (406) is movably clamped with the pressing port (407) and extends to the outside of the clamping box (405), two ends of the spring (409) are fixedly connected with the bottom of the fixing block (406) and the inner bottom wall of the clamping box (405) respectively, one end of the steel wire rope (410) is fixedly connected with the winding drum (401), the steel wire rope (410) is movably sleeved with the winding drum (401), the pulley (411) is fixedly connected with one end, far away from the net drum (301), of the side rod (305) through the wheel frame, one end, far away from the winding drum (401), of the steel wire rope (410) is movably sleeved with the outer ring of the pulley (411), and the end portion of the steel wire rope penetrates through the side rod (305) and is far away from one end.

5. The protection device for bridge construction according to claim 3, characterized in that: the width of the stay bar (310) is equal to the thickness of the top plate (1), and the stay bar (310) is located on the side surface of the top plate (1) and at the front end of the top plate (1) through the connecting position of the rotating shaft and the top plate (1).

6. The protection device for bridge construction according to claim 3, characterized in that: one side of the net drum (301) close to the clamping plate (204) is in an arc shape matched with the rear end of the clamping plate (204).

7. The protection device for bridge construction according to claim 4, characterized in that: the top end of the fixing block (406) is arc-shaped and matched with the outer ring of the fluted disc (403), and the top end of the fixing block is provided with a tooth groove matched with the sawteeth of the outer ring of the fluted disc (403).

8. The protection device for bridge construction according to claim 4, characterized in that: one end of each steel wire rope (410) positioned in the sliding groove (306) is fixedly connected with two ends of the sliding rod (307) respectively, and the two steel wire ropes (410) are positioned on the left side and the right side of the spacer ring (402) respectively and connected with the winding reel (401).

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