CN214044853U

CN214044853U - Adjustable bridge

Info

Publication number: CN214044853U
Application number: CN202023037737.0U
Authority: CN
Inventors: 李克强; 虞荣华
Original assignee: Suzhou Xieqiang Electric Co ltd
Current assignee: Suzhou Xieqiang Electric Co ltd
Priority date: 2020-12-16
Filing date: 2020-12-16
Publication date: 2021-08-24
Anticipated expiration: 2030-12-16

Abstract

The utility model discloses an adjustable crane span structure relates to cable testing bridge technical field, aims at solving the low problem of crane span structure stability, and its technical scheme main points are: the utility model provides an adjustable bridge, includes two sets of support frames of fixed connection under the ceiling, be equipped with the crane span structure body between the support frame, crane span structure body bottom fixedly connected with movable rod, set up the spout along support frame length direction in the middle of the support frame, the movable rod both ends are stretched out from the spout and are fixed through fastening nut, a plurality of hook holes have been seted up on the support frame, hook hole along support frame length direction linear distribution in spout both sides, still be equipped with on the movable rod and be used for the couple subassembly that articulates with the hook hole. The utility model discloses a load that crane span structure body dead weight produced is supported in couple subassembly and hook hole, has improved the stability of crane span structure.

Description

Adjustable bridge

Technical Field

The utility model relates to a cable testing bridge field, more specifically says, it relates to an adjustable crane span structure.

Background

The cable bridge is divided into structures of a groove type, a tray type, a ladder type, a grid type and the like, and comprises a support, a supporting arm, an installation accessory and the like.

As shown in fig. 1, the cable bridge frame in the prior art comprises two groups of support frames fixedly connected to the bottom of a ceiling, a bridge frame body is installed between the support frames, a plurality of positioning holes are formed in the support frames along the length direction of the support frames, a movable rod is connected to the bottom of the bridge frame body, and two ends of the movable rod extend out of through holes and are fixed through fastening nuts.

However, in the above scheme, when the height of the bridge frame body from the ground is adjusted, the bridge frame body and the movable rod generate an acting force which is vertically downward and uses the volume center of the bridge frame, the acting force is transmitted to the positioning hole and balanced through mutual friction of threads between the fastening nut and the movable rod, so that the fastening nut needs a large clamping force, the requirement on the fastening nut is high, and the fastening nut is easily damaged, so that the bridge frame collapses.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide an adjustable crane span structure relies on couple subassembly and hook hole to bear load with crane span structure body self gravity, has strengthened the stability of crane span structure.

In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides an adjustable bridge, includes two sets of support frames of fixed connection under the ceiling, be equipped with the crane span structure body between the support frame, crane span structure body bottom fixedly connected with movable rod, set up the spout along support frame length direction in the middle of the support frame, the movable rod both ends are stretched out from the spout and are fixed through fastening nut, a plurality of hook holes have been seted up on the support frame, hook hole along support frame length direction linear distribution in spout both sides, still be equipped with on the movable rod and be used for the couple subassembly that articulates with the hook hole.

By adopting the technical scheme, the two groups of square supporting frames are respectively provided with a square sliding groove at the middle position, the sliding grooves are arranged along the length direction of the supporting plate, two ends of a cylindrical movable rod extend out of the sliding grooves, the movable rod can freely slide on the sliding grooves through the arranged sliding grooves, the movable rod is used for placing the bridge frame body, the height of the bridge frame body from the ground is adjusted through the sliding of the movable rod, further, under special working conditions, when the height of the bridge frame from the ground influences construction activities, the height of the bridge frame from the ground can be flexibly adjusted, the influence on the construction activities is reduced, two ends of the movable rod are in threaded connection with fastening nuts, the movable rod can be prevented from being separated from the sliding grooves by connecting the fastening nuts at two ends of the movable rod, a plurality of cylindrical hook holes are arranged at two sides of the sliding grooves, the hook holes are linearly distributed along the length direction of the supporting frames, the gravity load of the bridge frame and the movable rod is supported by inserting the hook holes through the hook components connected on the movable rod, the frictional force between couple subassembly and the hook hole is transmitted, has avoided transmitting gravity between connecting rod and the support frame in traditional scheme, has reduced connecting rod and support frame direct contact's frictional force, has reduced wearing and tearing, has improved the life of connecting rod, increase stability.

Further, the couple subassembly is including setting up at the movable seat that the movable rod stretches out spout one and serves, setting up at the connecting block at movable seat top both ends and setting up the connecting piece that is close to support frame one side at the connecting block top, the connecting piece is arranged in inserting the hook hole, the trompil that supplies the movable rod to pass is seted up to movable seat central point.

Adopt above-mentioned scheme, can the erection joint piece through the sliding seat, can make the movable rod wear out through the trompil on the sliding seat, make sliding seat and movable rod even as an organic whole, and then slide on the spout jointly, through installing the connecting piece that is close to support frame one end at the connecting block top, realize that the connecting piece inserts the hook hole, rely on the gravity of the extrusion balance crane span structure body between connecting piece and the hook hole, the internal screw thread friction of fastening nut has been replaced through the support of couple subassembly to reduce the wearing and tearing of equipment, the life of improvement crane span structure.

Further, the bottom of the connecting block is fixedly connected with a vertical bolt, a through hole matched with the vertical bolt is formed in the movable seat, and the lower end of the vertical bolt penetrates through the through hole and is in threaded connection with a vertical nut.

Adopt above-mentioned scheme, vertical bolt is vertical to pass the through-hole of seting up on the sliding seat, the through-hole external diameter is greater than vertical bolt's external diameter, vertical bolt length is higher than the through-hole degree of depth, vertical bolt bottom threaded connection has vertical nut, after unscrewing vertical nut, because the sliding seat, the self gravity of movable rod and crane span structure body, the sliding seat bottom can be hugged closely at vertical nut top, through the small range activity of sliding seat on vertical bolt, realize the small range regulation to crane span structure body height, and easy operation, convenient implementation.

Furthermore, the connecting piece is a transverse bolt of which the axial direction is perpendicular to the sliding direction of the movable rod, a through hole matched with the transverse bolt is formed in the connecting block, and the transverse bolt is in threaded connection with the through hole.

Adopt above-mentioned scheme, the axial perpendicular to connecting block direction of height of transverse bolt is equipped with the through-hole that the external diameter is greater than the transverse bolt external diameter on the connecting block, be equipped with in the through-hole with the screw thread of transverse bolt looks adaptation, can realize rotating transverse bolt along bolt axial displacement through transverse bolt and through-hole threaded connection, and then make transverse bolt insert and break away from the hook hole, be convenient for adjust the height of crane span structure apart from ground, convenient operation, simple structure.

Further, the connecting block is fixedly connected with the movable seat through a reinforcing nut, and the reinforcing nut is in threaded connection with the vertical bolt.

By adopting the above scheme, through set up the reinforcement nut between connecting block and sliding seat, and this reinforcement nut threaded connection makes to rotate the reinforcement nut in vertical bolt, can support the reinforcement nut bottom and press at the sliding seat top for the sliding seat supports and presses between two nuts, has improved the stability of sliding seat.

Furthermore, an anti-slip gasket is arranged between the fastening nut and the movable seat.

By adopting the scheme, the anti-slip washer is arranged between the fastening nut and the movable seat, so that the extrusion force between the fastening nut and the movable seat is increased, and the stability between the movable seat and the movable rod is improved.

Furthermore, one end of the connecting piece, which is far away from the connecting block, is provided with a rubber non-slip mat.

Adopt above-mentioned scheme, the one end at the connecting piece is wrapped up in to the rubber slipmat, and the connecting piece external diameter behind the parcel rubber slipmat is greater than the hook hole internal diameter, has the connecting piece of rubber slipmat to insert the hook hole through the parcel for interference fit between connecting piece and the hook hole prevents that the unexpected landing of connecting piece from going out the hook hole, has improved the stability between connecting piece and the hook hole.

Furthermore, the two ends of the bridge frame body are respectively provided with a splicing groove and a splicing block, and all the bridge frame bodies are horizontally spliced through the splicing grooves and the splicing blocks.

By adopting the scheme, the splicing blocks are protruding blocks on the end face of the side wall of the bridge, the splicing grooves are concave grooves on the end face of the side wall of the bridge, the size of each splicing groove is matched with that of each splicing block, splicing of the bridge is achieved through splicing of the splicing blocks and the splicing grooves, the structure is simple, operation is convenient, and the efficiency of bridge installation is improved.

To sum up, the utility model discloses following beneficial effect has: the bridge frame body is supported through the extrusion between the hook assembly and the hook hole, load generated by the gravity of the bridge frame body is borne through friction of threads between the fastening nut and the connecting rod in the prior art is replaced, and the stability of the bridge frame body is improved.

Drawings

FIG. 1 is a schematic diagram of a prior art structure;

FIG. 2 is a schematic structural view of the present invention;

FIG. 3 is a schematic structural view of the hook assembly of the present invention;

fig. 4 is a schematic view of the splicing structure of the middle bridge body of the present invention.

Reference numerals: 1. a support frame; 2. a bridge frame body; 3. a movable rod; 4. a chute; 5. a hook hole; 6. connecting blocks; 7. a movable seat; 8. a vertical bolt; 9. a vertical nut; 10. fastening a nut; 11. an anti-slip washer; 12. reinforcing the nut; 13. a connecting member; 14. splicing blocks; 15. and (6) splicing the grooves.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in figures 2 and 3, the adjustable bridge comprises two groups of square support frames 1, each group of support frames 1 is respectively provided with a square sliding groove 4 at the middle position, the sliding groove 4 is arranged along the length direction of a support plate, the section of the sliding groove 4 approximately occupies 1/4 of the section area of the support frame 1, a gap with a certain distance exists between the two groups of support frames 1, the width of a bridge body 2 is smaller than the width of the gap, so that the bridge body 2 can pass between the support frames 1, the length of a cylindrical movable rod 3 is larger than the width of the gap, and the two ends of the cylindrical movable rod 3 extend out of the sliding groove 4, the movable rod 3 can freely slide on the sliding groove 4 through the arranged sliding groove 4, the bridge body 2 is secured on the movable rod 3, the support frames 1 arranged at a certain distance are used for installing the bridge body 2 at a certain height from the ground, and the height of the bridge body 2 from the ground is adjusted through the sliding of the movable rod 3, furthermore, under special working conditions, when the height of the bridge from the ground affects construction activities, the height of the bridge from the ground can be flexibly adjusted, the influence on the construction activities is reduced, the fastening nuts 10 are in threaded connection with the two ends of the movable rod 3, the movable rod 3 can be prevented from being separated from the sliding groove 4 by connecting the fastening nuts 10 with the two ends of the movable rod 3, a plurality of cylindrical hook holes 5 are formed in the two sides of the sliding groove 4, the hook holes 5 are linearly distributed along the length direction of the support frame 1, the load support of the gravity of the bridge and the movable rod 3 is realized by inserting the hook components connected with the movable rod 3 into the hook holes 5, the friction force between the hook components and the hook holes 5 is transmitted, the gravity is prevented from being transmitted between the connecting rod and the support frame 1 in the traditional scheme, the friction force of the direct contact between the connecting rod and the support frame 1 is reduced, the abrasion is reduced, the service life of the connecting rod is prolonged, the stability is increased.

As shown in fig. 2 and 3, the through-hole has been seted up to 7 intermediate positions of square sliding seat, the internal diameter of through-hole is greater than the movable rod 3, make movable rod 3 can pass the through-hole, movable seat 7 and movable rod 3 are even as an organic whole, and then slide on spout 4 altogether, terrace with edge form connecting block 6 is installed at 7 top both ends of square sliding seat, the welding of 6 bottoms of connecting block has vertical bolt 8, the internal diameter is greater than vertical bolt 8's trompil has been seted up to the bottom that movable seat 7 corresponds vertical bolt 8, vertical bolt 8 can be worn out from the trompil, vertical bolt 8 bottom threaded connection has vertical nut 9, movable seat 7 supports the top at vertical nut 9 because self gravity, through the small circle activity of movable seat 7 on vertical bolt 8, realize the small range regulation of 2 heights of crane span structure body, and easy operation, and convenient implementation. 8 top threaded connection of vertical bolt has reinforcing nut 12, and reinforcing nut 12 is located between sliding seat 7 and connecting block 6, can make reinforcing nut 12 bottom support and press at sliding seat 7 top through rotating reinforcing nut 12, can improve the stability of crane span structure through reinforcing nut 12 and vertical nut 9 to supporting of sliding seat 7 top and bottom and pressing.

As shown in fig. 2 and 3, a circular through hole is formed in the top of the connecting block 6, the connecting piece 13 is a transverse bolt with the axial direction perpendicular to the sliding direction of the movable rod 3, the connecting piece 13 can be inserted into the through hole, an internal thread matched with the external thread of the transverse bolt is arranged in the through hole, the transverse bolt is in threaded connection with the connecting block 6, the transverse bolt can slide along the axial direction by rotating the transverse bolt, and the connecting piece 13 is inserted into and separated from the hook hole 5.

As shown in fig. 2 and 3, install circular anti-skidding packing ring 11 between fastening nut 10 and the sliding seat 7, anti-skidding packing ring 11 can increase the extrusion force between fastening nut 10 and the sliding seat 7, improve the stability between sliding seat 7 and the movable rod 3, connecting piece 13 has the rubber slipmat along the parcel outward near the one end of crane span structure body 2, connecting piece 13 external diameter behind the parcel rubber slipmat is greater than the internal diameter of hook hole 5, connecting piece 13 that has the rubber slipmat through the parcel inserts hook hole 5, make interference fit between connecting piece 13 and the hook hole 5, prevent that connecting piece 13 unexpected landing from going out hook hole 5, the stability between connecting piece 13 and the hook hole 5 has been improved.

As shown in fig. 4, the splicing blocks 14 are protruding blocks on the end face of the side wall of the bridge, the splicing grooves 15 are recessed grooves on the end face of the side wall of the bridge, the size of the splicing grooves 15 is matched with that of the splicing blocks 14, splicing of the bridge is achieved through splicing of the splicing blocks 14 and the splicing grooves 15, the structure is simple, operation is convenient, and efficiency of bridge installation is improved.

In the specific use, rotate connecting piece 13, make connecting piece 13 do the slip of keeping away from hook hole 5 on connecting block 6, and then slip movable rod 3, raise or reduce the position of movable rod 3 on spout 4, when sliding to suitable position, it inserts hook hole 5 to rotate connecting piece 13, if still need the height of minizone regulation crane span structure body 2, rotate vertical nut 9, reduce the height on vertical bolt 8 apart from ground, movable seat 7 and crane span structure can support because self gravity and press at vertical nut 9 top.

The above is only the preferred embodiment of the present invention, the protection scope of the present invention is not limited to the above-mentioned embodiments, all belong to the technical solution of the present invention under the thought all belong to the protection scope of the present invention, it should be pointed out, to the ordinary skilled person in the present technical field, not deviating from the present invention discloses a plurality of improvements and decorations, these improvements and decorations should also be regarded as the protection scope of the present invention.

Claims

1. An adjustable crane span structure which characterized in that: including two sets of support frames (1) of fixed connection under the ceiling, be equipped with crane span structure body (2) between support frame (1), crane span structure body (2) bottom fixedly connected with movable rod (3), offer spout (4) along support frame (1) length direction in the middle of support frame (1), movable rod (3) both ends are stretched out from spout (4) and are fixed through fastening nut (10), a plurality of hook holes (5) have been seted up on support frame (1), hook hole (5) are along support frame (1) length direction linear distribution in spout (4) both sides, still be equipped with on movable rod (3) and be used for hooking the couple subassembly that articulates with hook hole (5).

2. An adjustable bridge as claimed in claim 1, wherein: couple subassembly is including setting up at movable rod (3) stretch out spout (4) one and serve movable seat (7), setting at connecting block (6) at movable seat (7) top both ends and setting up connecting piece (13) that are close to support frame (1) one side at connecting block (6) top, connecting piece (13) are arranged in inserting hook hole (5), the trompil that supplies movable rod (3) to pass is seted up to movable seat (7) central point.

3. An adjustable bridge as claimed in claim 2, wherein: the connecting block (6) bottom fixedly connected with vertical bolt (8), be provided with on movable seat (7) with the through-hole of vertical bolt (8) adaptation, the lower extreme of vertical bolt (8) passes through-hole and threaded connection have vertical nut (9).

4. An adjustable bridge as claimed in claim 2, wherein: the connecting piece (13) is a transverse bolt with the axial direction perpendicular to the sliding direction of the movable rod (3), a through hole matched with the transverse bolt is formed in the connecting block (6), and the transverse bolt is in threaded connection with the through hole.

5. An adjustable bridge as claimed in claim 2, wherein: the connecting block (6) is fixedly connected with the movable seat (7) through a reinforcing nut (12), and the reinforcing nut (12) is in threaded connection with the vertical bolt (8).

6. An adjustable bridge as claimed in claim 2, wherein: an anti-skid washer (11) is arranged between the fastening nut (10) and the movable seat (7).

7. An adjustable bridge as claimed in claim 6, wherein: and one end of the connecting piece (13) far away from the connecting block (6) is provided with a rubber non-slip mat.

8. An adjustable bridge as claimed in claim 1, wherein: the bridge frame is characterized in that the two ends of the bridge frame body (2) are respectively provided with a splicing groove (15) and a splicing block (14), and all bridge frames are horizontally spliced through the splicing groove (15) and the splicing block (14).