CN113746042A

CN113746042A - Large-span assembled steel crane span structure

Info

Publication number: CN113746042A
Application number: CN202111183580.9A
Authority: CN
Inventors: 吴成兵; 张俊; 程大龙; 李东波; 吴学兵; 叶青松; 张伟
Original assignee: Anhui Jinggong Cable Bridge Frame Co ltd
Current assignee: Anhui Jinggong Cable Bridge Frame Co ltd
Priority date: 2021-10-11
Filing date: 2021-10-11
Publication date: 2021-12-03
Anticipated expiration: 2041-10-11
Also published as: CN113746042B

Abstract

The invention discloses a large-span assembled steel bridge frame, which comprises a top plate, wherein the top plate is fixedly arranged on a wall top, the bottom of the top plate is fixedly provided with a connecting frame, two sides of the connecting frame are rotatably connected with bases, the connecting frame and the two bases are distributed in a herringbone manner, an adjusting frame is arranged between the two bases, the bases comprise bottom plates, two sides of each bottom plate are fixedly provided with side plates, the two side plates and the bottom plates are distributed in a U-shaped manner, the upper parts of the inner sides of the two side plates are respectively provided with a sliding groove, the two sides of each sliding groove are respectively provided with a limiting groove, a plurality of sealing plates are arranged in the sliding grooves, two ends of each sliding groove are respectively provided with an inclined surface, so that the sealing plates can be inserted conveniently during installation, the bottom plates are used for bearing cables, the bases are sealed through the sealing plates, the two bases rotate downwards to a certain angle after installation, and a triangular structure is formed between the two bases, converting its own weight into a part of horizontal component.

Description

Large-span assembled steel crane span structure

Technical Field

The invention relates to the technical field of cable installation equipment, in particular to a large-span assembled steel bridge.

Background

The cable crane span structure divide into structures such as slot type, tray formula and ladder formula, net formula, comprises support, trailing arm and installation annex, and to the great occasion of span, the stability of installation is improved to the mode that often adopts the increase support frame in the installation, but this kind of mode makes the installation loaded down with trivial details, and the connection effect is unstable.

The invention discloses a large-span bridge for cables with patent publication number CN107579486B, which comprises a lifting mechanism, a bridge and a support frame, wherein the lifting mechanism is positioned below one side of the bridge, the bridge is positioned below the support frame, the bottom end of the support frame is positioned at one side of the lifting mechanism, and the lifting mechanism comprises: first bracing piece, second bracing piece and rotary drum, there is ground the below of rotary drum, first bracing piece, the bottom of second bracing piece all is fixed with ground, the top of first bracing piece with rotate with the rotary drum and be connected, the one end of second bracing piece rotates with the other end of rotary drum and is connected, the one end that the rotary drum is close to first bracing piece still is fixed with gear and crank, the top of first bracing piece is fixed with the third bracing piece, the one end of third bracing piece is fixed with the clog shell, the inner wall of clog shell has the spring. The cable inspection device is reasonable in design structure and simple to operate, can effectively realize the fastening of the bridge, can inspect the cable of the bridge through the lifting device, can freely adjust the height of the bridge, is high in requirement on the field due to the fact that the installation position of the cable inspection device depends on the wall, and is not suitable for popularization and use.

Disclosure of Invention

The invention aims to provide a large-span assembled steel bridge frame, which solves the following technical problems:

1. under the condition that the number of the supporting frames between the bridge frame and the wall is not increased, how to improve the effect under the condition of large-span installation is realized;

2. when the cable bridge is installed, the cable can be conveniently installed and can be quickly assembled.

The purpose of the invention can be realized by the following technical scheme:

the utility model provides an assembled steel crane span structure of large-span, includes the roof, roof fixed mounting is on the wall crown, the bottom fixed mounting of roof has the link, the both sides of link are rotated and are connected with the base, be "people" font between link and two bases and distribute, two install the alignment jig between the base.

As a further scheme of the invention: the base includes the bottom plate, the both sides fixed mounting of bottom plate has the curb plate, two curb plate and bottom plate are "U" shape and distribute, two the spout has all been seted up on the upper portion that leans on interior one side of curb plate, the spacing groove has all been seted up to the both sides position of spout, be provided with a plurality of closing plates in the spout, the both ends of spout all are provided with the inclined plane, are convenient for when the installation the insertion of closing plate, wherein the bottom plate is used for accepting the cable, seals the base through the closing plate.

As a further scheme of the invention: the two sides the equal fixed mounting of one end of curb plate has connecting plate one, two the through-hole has all been seted up on the upper portion of connecting plate one, two connecting plate one lean on fixed mounting to have the loose axle between the lower part position, two install the alignment jig between the loose axle.

As a further scheme of the invention: the connecting frame comprises a second connecting plate, the second connecting plate is fixedly connected with the bottom of the top plate, trapezoidal plates are fixedly mounted on two sides of the bottom of the second connecting plate, connecting rods are fixedly mounted on two sides between the trapezoidal plates, and an O-shaped hole is formed in the position, located below the connecting rods, of each trapezoidal plate.

As a further scheme of the invention: the base passes through the through-hole and installs on the connecting rod, the base is whole can be circular motion along the connecting rod, sliding connection between connecting plate one and the trapezoidal plate this moment carries on spacingly through the ascending motion of trapezoidal plate to the connecting plate one along the connecting rod axial for the rotation of base does not take place the skew.

As a further scheme of the invention: the middle positions of the two movable shafts are provided with grooves, the movable shafts are all rotatably connected with rotary sleeves at the groove positions of the movable shafts, the two rotary sleeves are all rotatably connected with two driving rods, the O-shaped hole is rotatably connected with a threaded rod, the threaded rod freely slides up and down in the O-shaped hole, the middle position of the threaded rod is fixedly provided with a fixed sleeve, two side positions of the threaded rod are fixedly provided with stop blocks, the threaded rod is provided with threads at the position between the fixed sleeve and the two stop blocks, the rotating directions of the two threads are opposite, the two side positions of the threaded rod are both in threaded connection with threaded sleeves, the threaded sleeves are rotatably connected with the driving rods at two sides, one side of the threaded rod is provided with bayonets, a crank tool is used for inserting the bayonets along the O-shaped hole to rotate the threaded rod, and the positions of the threaded sleeves at two sides can be adjusted by rotating the threaded rods, when the thread bush of both sides contacts with the dog, the base is in the biggest state of inclination, when contacting between thread bush and the fixed cover, two bases all are in the horizontality.

As a further scheme of the invention: two the equal fixed mounting in outside one side of leaning on of base has the connection frame, the connection frame is connected with other cable testing bridges, and when the base of both sides was in the biggest state of inclination, the connection frame of both sides was in the horizontality.

As a further scheme of the invention: the closing plate includes the panel body, the both sides of panel body are provided with arch and draw-in groove respectively, and when the closing plate was installed in the spout, the protruding grafting of back closing plate was in the draw-in groove of preceding closing plate, guaranteed the tight type of connecting between the two, also avoided the workman to appear the deviation in the installation of closing plate when the equipment simultaneously, also had certain effect of sheltering from to the gap of closing plate connection simultaneously.

As a further scheme of the invention: install clamping mechanism on two closing plates of spout both sides, set up the installation cavity in the clamping mechanism, the intermediate position fixed mounting of installation cavity has the division board, the both sides sliding connection of installation cavity has the joint piece, install the spring between division board and two joint pieces, the joint piece is provided with the inclined plane by bellied one side top to the closing plate at edge inserts to the spout in.

The invention has the beneficial effects that:

1. when the bridge is installed, the threaded rods are rotated to enable the threaded sleeves on the two sides to move in opposite directions, the threaded sleeves on the two sides move towards the stop blocks on the two sides, the two bases incline downwards to form a certain angle, the gravity of the bases is converted into a part of component force in the horizontal direction, and when the span of the installation position is large, the bridge installed on the two sides supports the bases, so that a stable triangular structure is formed between the two bases, the influence of the gravity of the bases on the whole is reduced, and the bridge is more stable when spanning a large span;

2. be provided with on the base the spacing groove has all been seted up to the both sides position of spout, be provided with a plurality of closing plates in the spout, the both ends of spout all are provided with the inclined plane, are convenient for when the insertion of installation closing plate, wherein the bottom plate is used for accepting the cable, seals the base through the closing plate, is provided with latch mechanism on the closing plate of base outside, fixes the closing plate of installing in the spout, plays the guard action to inside cable simultaneously.

Drawings

The invention will be further described with reference to the accompanying drawings.

FIG. 1 is a schematic view of the overall structure of the present invention;

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

FIG. 3 is a schematic view of the structure of the connecting frame of the present invention;

FIG. 4 is a schematic view of the connecting structure of the adjusting bracket of the present invention;

FIG. 5 is a schematic view of the overall structure of the adjusting bracket of the present invention;

FIG. 6 is a schematic view of the seal plate construction of the present invention;

FIG. 7 is a schematic view of the clamping mechanism of the present invention in an installed position;

FIG. 8 is a schematic view of the internal structure of the clamping mechanism of the present invention.

In the figure: 1. a top plate; 2. a sealing plate; 201. a plate body; 202. a protrusion; 203. a card slot; 3. a connecting frame; 4. a base; 401. a side plate; 402. a limiting groove; 403. a chute; 404. a first connecting plate; 405. a through hole; 406. a movable shaft; 407. a base plate; 5. a connecting frame; 501. a second connecting plate; 502. a connecting rod; 503. a trapezoidal plate; 504. an "O" shaped hole; 6. an adjusting bracket; 601. a threaded rod; 602. a drive rod; 603. a rotating sleeve; 604. a threaded sleeve; 605. fixing a sleeve; 606. a stopper; 7. a clamping mechanism; 701. a mounting cavity; 702. a clamping block; 703. a spring; 704. a partition plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1, the invention relates to a large-span assembled steel bridge frame, which comprises a top plate 1, wherein the top plate 1 is fixedly installed on a wall top, a connecting frame 5 is fixedly installed at the bottom of the top plate 1, two sides of the connecting frame 5 are rotatably connected with bases 4, the connecting frame 5 and the two bases 4 are distributed in a herringbone manner, and an adjusting frame 6 is installed between the two bases 4.

Referring to fig. 4, the base 4 includes a bottom plate 407, side plates 401 are fixedly mounted on two sides of the bottom plate 407, the two side plates 401 and the bottom plate 407 are distributed in a U shape, sliding grooves 403 are formed in upper portions of the two side plates 401 close to an inner side, limiting grooves 402 are formed in positions on two sides of each sliding groove 403, a plurality of sealing plates 2 are disposed in the sliding grooves 403, inclined surfaces are disposed at two ends of each sliding groove 403, so that the sealing plates 2 can be inserted when the base is mounted, wherein the bottom plate 407 is used for receiving a cable, and the base 4 is sealed by the sealing plates 2.

One end of each side plate 401 on two sides is fixedly provided with a first connecting plate 404, the upper parts of the first connecting plates 404 are provided with through holes 405, a movable shaft 406 is fixedly arranged between the lower parts of the first connecting plates 404, and an adjusting frame 6 is arranged between the movable shafts 406.

Referring to fig. 3, the connecting frame 5 includes a second connecting plate 501, the second connecting plate 501 is fixedly connected to the bottom of the top plate 1, trapezoidal plates 503 are fixedly mounted at two sides of the bottom of the second connecting plate 501, a connecting rod 502 is fixedly mounted at two sides between the two trapezoidal plates 503, and O-shaped holes 504 are formed in the two trapezoidal plates 503 at positions below the connecting rod 502.

Referring to fig. 4, the base 4 is mounted on the connecting rod 502 through the through hole 405, the whole base 4 can make a circular motion along the connecting rod 502, at this time, the first connecting plate 404 and the trapezoidal plate 503 are connected in a sliding manner, and the trapezoidal plate 503 limits the motion of the first connecting plate 404 along the axial direction of the connecting rod 502, so that the rotation of the base 4 does not deviate.

Referring to fig. 5, a groove is formed in the middle of each of the two movable shafts 406, the movable shafts 406 are rotatably connected to rotary sleeves 603 at the groove positions, two driving rods 602 are rotatably connected to the two rotary sleeves 603, a threaded rod 601 is rotatably connected to the O-shaped hole 504, the threaded rod 601 freely slides up and down in the O-shaped hole 504, a fixed sleeve 605 is fixedly installed in the middle of the threaded rod 601, stoppers 606 are fixedly installed on the two sides of the threaded rod 601, threads are formed in the threaded rod 601 between the fixed sleeve 605 and the two stoppers 606, the rotation directions of the two threads are opposite, threaded sleeves 604 are respectively connected to the two sides of the threaded rod 601 through threads, the threaded sleeves 604 are rotatably connected to the driving rods 602 on the two sides, a bayonet is formed on one side of the threaded rod 601, and the threaded rod 601 can be rotated by inserting a handle tool into the bayonet along the O-shaped hole 504, the positions of the threaded sleeves 604 on both sides can be adjusted by rotating the threaded rod 601, when the threaded sleeves 604 on both sides are in contact with the stop 606, the base 4 is in a state of the largest inclination angle, and when the threaded sleeves 604 are in contact with the fixed sleeve 605, both the bases 4 are in a horizontal state.

Two the equal fixed mounting in outside one side of leaning on of base 4 has a connection frame 3, connection frame 3 is connected with other cable testing bridge, and when base 4 was in the biggest state of inclination, the connection frame 3 of both sides was in the horizontality.

Referring to fig. 6, the sealing plate 2 includes a plate body 201, a protrusion 202 and a slot 203 are respectively disposed on two sides of the plate body 201, when the sealing plate 2 is installed in the sliding groove 403, the protrusion 202 of the next sealing plate 2 is inserted into the slot 203 of the previous sealing plate 2, so as to ensure the tightness of the connection therebetween, and simultaneously, the installation deviation of the sealing plate 2 during the assembly of a worker is avoided, and a certain shielding effect is provided for the gap where the sealing plate 2 is connected.

Referring to fig. 7-8, two sealing plates 2 installed on two sides of the sliding groove 403 are provided with a clamping mechanism 7, the clamping mechanism 7 is provided with an installation cavity 701, a partition plate 704 is fixedly installed in the middle of the installation cavity 701, two sides of the installation cavity 701 are connected with clamping blocks 702 in a sliding manner, a spring 703 is installed between the partition plate 704 and the two clamping blocks 702, the top of one side, close to the protrusion 202, of each clamping block 702 is provided with an inclined surface, so that the edge sealing plate 2 is inserted into the sliding groove 403, when the sealing plate 2 slides along the sliding groove 403, the two springs 703 are in a compressed state, the clamping blocks 702 on two sides move into the installation cavity 701, and when the clamping blocks 702 move to the position of the limiting groove 402, the springs stretch out, push the two clamping blocks 702 into the limiting groove 402, and limit the partition plate 704.

The installation process of the device is as follows, drilling holes on the top surface of the wall, installing expansion screws to fix the top plate 1, fixedly installing a connecting frame 5 at the bottom of the top plate 1, penetrating a connecting rod 502 through two through holes 405, and fixedly installing the connecting rod 502 on a trapezoidal plate 503, wherein the bases 4 at two sides can rotate along the connecting frame 5; when the adjusting frame 6 is installed, the two sides of the threaded rod 601 are clamped in the O-shaped holes 504, the movable shafts 406 of the bases 4 on the two sides are installed in the rotary sleeve 603, the threaded rod 601 is rotated by using a tool until the threaded sleeve 604 contacts with the fixed sleeve 605, the bases 4 on the two sides are in a horizontal state, cables are installed in the bases, the threaded rod 601 is rotated by using the tool until the threaded sleeve 604 contacts with the stop block 606, the sealing plate 2 slides in along the sliding groove 403 in sequence, the upper portion of the base 4 is sealed, the connecting frame 3 is installed at the tail ends of the two bases 4, and bridges of other sections are installed on the connecting frame 3.

The working principle of the device is as follows, firstly, two bases 4 are adjusted to be horizontal, the installation of a cable is convenient, the threaded rods 601 are rotated to enable the threaded sleeves 604 on the two sides to move along opposite directions, the threaded sleeves 604 on the two sides move towards the stop blocks 606 on the two sides, the two bases 4 rotate downwards to form a certain angle, a triangular structure is formed between the two bases 4, the gravity of the bases is converted into a part of component force in the horizontal direction, when the span of the installation position is large, the bridges on the two sides are used for supporting, and the influence of the gravity on the whole is reduced.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation and a specific orientation configuration and operation, and thus, should not be construed as limiting the present invention. Furthermore, "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate member, or they may be connected through two or more elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

While one embodiment of the present invention has been described in detail, the description is only a preferred embodiment of the present invention and should not be taken as limiting the scope of the invention. All equivalent changes and modifications made within the scope of the present invention shall fall within the scope of the present invention.

Claims

1. The utility model provides an assembled steel crane span structure of large-span, includes roof (1), its characterized in that, roof (1) fixed mounting is on the wall crown, the bottom fixed mounting of roof (1) has link (5), the both sides of link (5) are rotated and are connected with base (4), two install alignment jig (6) between base (4).

2. The large-span assembled steel bridge frame according to claim 1, wherein the base (4) comprises a bottom plate (407), side plates (401) are fixedly mounted on two sides of the bottom plate (407), sliding grooves (403) are formed in the upper portions of the inner sides of the two side plates (401), limiting grooves (402) are formed in two sides of each sliding groove (403), and a plurality of sealing plates (2) are arranged in the sliding grooves (403).

3. The large-span assembled steel bridge frame according to claim 2, wherein one end of each side plate (401) is fixedly provided with a first connecting plate (404), the upper parts of the first connecting plates (404) are provided with through holes (405), a movable shaft (406) is fixedly arranged between the lower parts of the first connecting plates (404), and an adjusting frame (6) is arranged between the two movable shafts (406).

4. The large-span assembled steel bridge frame according to claim 1, wherein the connecting frame (5) comprises a second connecting plate (501), the second connecting plate (501) is fixedly connected with the bottom of the top plate (1), trapezoidal plates (503) are fixedly mounted at two sides of the bottom of the second connecting plate (501), a connecting rod (502) is fixedly mounted at two sides between the two trapezoidal plates (503), and O-shaped holes (504) are formed in the two trapezoidal plates (503) at positions below the connecting rod (502).

5. A large-span modular steel bridge frame according to claim 3, characterized in that said base (4) is mounted on the connection rods (502) through holes (405).

6. The large-span assembled steel bridge frame as claimed in claim 3, wherein a groove is formed in the middle of each of the two movable shafts (406), each of the movable shafts (406) is rotatably connected with a rotary sleeve (603) at the groove position thereof, each of the two rotary sleeves (603) is rotatably connected with two driving rods (602), a threaded rod (601) is rotatably connected in the O-shaped hole (504), the threaded rod (601) freely slides up and down in the O-shaped hole (504), a fixed sleeve (605) is fixedly installed in the middle of the threaded rod (601), stoppers (606) are fixedly installed at the two sides of the threaded rod (601), the threaded rod (601) is provided with threads between the fixed sleeve (605) and the two stoppers (606), the two threads are opposite in rotation direction, and threaded sleeves (604) are respectively connected with threads at the two sides of the threaded rod (601), the threaded sleeve (604) is rotatably connected with the driving rods (602) at two sides.

7. The large-span assembled steel bridge frame of claim 1, wherein the connecting frame (3) is fixedly installed on the outer side of each of the two bases (4).

8. The large-span assembled steel bridge frame of claim 2, wherein the sealing plate (2) comprises a plate body (201), the two sides of the plate body (201) are respectively provided with a protrusion (202) and a slot (203), and when the sealing plate (2) is installed in the sliding groove (403), the protrusion (202) of the next sealing plate (2) is inserted into the slot (203) of the previous sealing plate (2).

9. The large-span assembled steel bridge frame of claim 8, wherein the two sealing plates (2) installed on two sides of the sliding groove (403) are provided with clamping mechanisms (7), each clamping mechanism (7) is provided with a mounting cavity (701), a separation plate (704) is fixedly installed in the middle of each mounting cavity (701), the two sides of each mounting cavity (701) are slidably connected with clamping blocks (702), and a spring (703) is installed between each separation plate (704) and each clamping block (702).