Overturning protection device for prestressed concrete fold-line-shaped roof truss

Abstract

The utility model discloses a prestressed concrete fold-line roof truss turn-over protection device which comprises a hanging ring, the top of a supporting plate is fixedly connected with a second protection pad, a supporting sleeve is inserted into the inner wall of a fixing clamping block in a penetrating mode, and the middle of the surface of the supporting sleeve is inserted into the inner wall of a connecting block and the inner wall of the supporting plate in a penetrating mode. The inner walls of the two ends of the supporting sleeve are in threaded connection with threaded rods, the top of the second protection pad is in lap joint with a fold-line-shaped roof truss body, the fixing clamping block, the first protection pad and the second protection pad are used in cooperation, the fixing clamping block and the supporting plate are fixedly connected, and the fold-line-shaped roof truss is fixed through the fixing clamping block and the supporting plate; when the device lifts the fold-line-shaped roof truss, the friction force between the fold-line-shaped roof truss and the device is reduced through the first protection pad and the second protection pad, and the contact surface between the supporting plate and the fold-line-shaped roof truss is large, so that the abrasion between the fold-line-shaped roof truss and the fixing clamping block and the supporting plate is reduced, and the effect of prolonging the service life of the fold-line-shaped roof truss is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of prestressed concrete folding-line roof trusses, and in particular to a rollover protection device for a prestressed concrete folding-line roof truss. Background Art

[0002] Large-span prestressed concrete zigzag roof trusses need to be hoisted and stacked during transportation and installation. Due to the height difference between the bottom of the lower chord end of the prestressed concrete zigzag roof trusses and the bottom of the mid-span, it is difficult to achieve absolute balance during hoisting, which makes the prestressed concrete zigzag roof trusses prone to large-scale shaking and friction with the fixing devices, resulting in cracking and damage;

[0003] When the traditional prestressed concrete zigzag roof truss is lifted and turned over, it is usually tied with ropes and other devices to reduce the shaking amplitude of the zigzag roof truss;

[0004] However, when this device is in use, when lifting and turning over the manifold roof truss, tools such as hooks are generally used to fix the manifold roof truss, and the contact surface between the hook and the manifold roof truss is too small. Shaking during lifting can easily lead to excessive friction between the hook and the manifold roof truss, resulting in high wear on the manifold roof truss and shortening the service life of the manifold roof truss. Therefore, it is necessary for the staff to improve it. Utility Model Content

[0005] The purpose of the utility model is to overcome the troublesome operation and heavy labor burden of the prior art and provide a prestressed concrete broken line roof truss rollover protection device;

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] include:

[0008] A lifting ring, wherein a central plate is fixedly connected to the bottom of the lifting ring, ropes are fixedly connected to the four sides of the bottom of the central plate, the bottom end of the rope is fixedly connected to a connecting plate, a fixed clamp is fixedly connected to the bottom of the connecting plate, a first protective pad is fixedly connected to the inner wall of the fixed clamp, both left and right sides of the bottom of the fixed clamp are slidably connected to connecting blocks, one side of the connecting block is fixedly connected to a supporting plate, a second protective pad is fixedly connected to the top of the supporting plate, a supporting sleeve is inserted through the inner wall of the fixed clamp, and the middle part of the surface of the supporting sleeve is inserted through the inner wall of the connecting block and the supporting plate, screws are threadedly connected to the inner walls of the two ends of the supporting sleeve, and a broken-line roof truss body is overlapped on the top of the second protective pad;

[0009] The left and right sides of the zigzag roof truss body are both sleeved with a third protection pad, the surface of the third protection pad is fixedly connected with a protective shell, the third protection pad and the left side of the bottom of the protective shell are both fixedly connected with a connecting ring, the inner wall of the connecting ring is slidably connected with a fixing rod, the third protection pad and the right side of the bottom of the protective shell are both fixedly connected with a fixing ring, the tail end of the fixing rod is threadedly connected to the inner wall of the fixing ring, and the front end of the fixing rod is fixedly connected with a pull ring.

[0010] The first protection pad and the second protection pad are both made of rubber, so that they have elasticity.

[0011] The third protection pad is made of rubber, which makes it elastic.

[0012] The inner top wall of the fixed block and the first protection pad is arc-shaped and can fit with the top of the folded-line roof truss body.

[0013] The support sleeve is made of iron and has a solid middle portion.

[0014] The technical solution provided by the utility model has the following technical effects:

[0015] 1. The utility model provides a prestressed concrete folding line roof truss rollover protection device, which connects and fixes the fixed block and the support plate through the use of a fixed block, a first protection pad and a second protection pad, so that the two fix the folding line roof truss. When the device is lifting the folding line roof truss, the first protection pad and the second protection pad reduce the friction between the folding line roof truss and the device, and the contact surface between the support plate and the folding line roof truss is larger, thereby reducing the wear of the folding line roof truss and the fixed block and the support plate, thereby extending the effect of improving the service life of the folding line roof truss.

[0016] 2. The present invention provides a prestressed concrete zigzag roof truss rollover protection device. By using a protective shell and a third protective pad in combination, the protective shell and the third protective pad are put on both ends of the zigzag roof truss and fixed, which effectively reduces the friction between the bottom of the zigzag roof truss and the external placement platform when the zigzag roof truss is lifted and turned over, thereby achieving the effect of reducing the wear of the zigzag roof truss. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the specific implementation methods of the present utility or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present utility. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a structural stereogram of the utility model;

[0019] Figure 2 This is a three-dimensional diagram of the support plate structure of the utility model;

[0020] Figure 3 This is a three-dimensional diagram of the protective shell structure of the utility model;

[0021] Figure 4 This is a schematic diagram of the fixed card block structure of the utility model;

[0022] Figure 5 This is a schematic diagram of the structure of the third protection pad of the utility model.

[0023] In the figure: 1. lifting ring; 2. central plate; 3. rope; 4. connecting plate; 5. fixing block; 6. first protection pad; 7. connecting block; 8. support plate; 9. second protection pad; 10. supporting sleeve; 11. screw; 12. zigzag truss body; 13. third protection pad; 14. protective shell; 15. connecting sleeve; 16. fixing rod; 17. fixing ring; 18. pull ring. DETAILED DESCRIPTION

[0024] See also Figures 1 to 5 , a prestressed concrete broken-line roof truss rollover protection device;

[0025] include:

[0026] A lifting ring 1, a centralizing plate 2 is fixedly connected to the bottom of the lifting ring 1, ropes 3 are fixedly connected to the four sides of the bottom of the centralizing plate 2, the bottom end of the rope 3 is fixedly connected to a connecting plate 4, a fixed clamping block 5 is fixedly connected to the bottom of the connecting plate 4, a first protective pad 6 is fixedly connected to the inner wall of the fixed clamping block 5, a connecting block 7 is slidably connected to the left and right sides of the bottom of the fixed clamping block 5, a support plate 8 is fixedly connected to one side of the connecting block 7, a second protective pad 9 is fixedly connected to the top of the support plate 8, a supporting sleeve 10 is inserted through the inner wall of the fixed clamping block 5, and the middle part of the surface of the supporting sleeve 10 is inserted through the inner wall of the connecting block 7 and the support plate 8, the inner walls of both ends of the supporting sleeve 10 are threadedly connected with screws 11, and a broken-line roof truss body 12 is overlapped on the top of the second protective pad 9;

[0027] When the folding-line roof truss body 12 is lifted by the fixing block 5, the fixing block 5 is placed on the top of the folding-line roof truss body 12, so that the first protection pad 6 is attached to the top of the folding-line roof truss body 12, and then the support plate 8 is placed at the middle opening of the folding-line roof truss body 12, and the support plate 8 is placed under the relative fixing block 5, and then the support plate 8 is pushed upward, so that the support plate 8 drives the connecting blocks 7 on the left and right sides to move upward and insert into the grooves on both sides of the inner wall of the fixing block 5, and then the support sleeve 10 is inserted through the round hole on one side of the fixing block 5, so that the support sleeve 10 passes through the fixing block 5 and Slide into the inner wall of the connecting block 7 and the support plate 8 and penetrate through it, then insert the two sets of screws 11 through the round holes on both sides of the fixed block 5 and rotate them, so that the screws 11 are inserted into the supporting sleeve 10 and rotated and fixed, thereby connecting and fixing the support plate 8 and the fixed block 5, and then fixing the two on the surface of the folding line roof truss body 12, and then hook the external crane hook on the lifting ring 1, and then lift it, so that the lifting ring 1 drives the rope 3 to pull up, the rope 3 drives the bottom connecting plate 4 to rise, and the connecting plate 4 drives the bottom fixed block 5 to rise, so that the fixed block 5 and the support plate 8 drive the folding line roof truss body 12 to be lifted and turned over;

[0028] The left and right sides of the folded-line roof truss body 12 are sleeved with a third protection pad 13, the surface of the third protection pad 13 is fixedly connected with a protective shell 14, the third protection pad 13 and the left side of the bottom of the protective shell 14 are fixedly connected with a connecting ring 15, the inner wall of the connecting ring 15 is slidably connected with a fixing rod 16, the third protection pad 13 and the right side of the bottom of the protective shell 14 are fixedly connected with a fixing ring 17, and the tail end of the fixing rod 16 is threadedly connected to the inner wall of the fixing ring 17, and the front end of the fixing rod 16 is fixedly connected with a pull ring 18;

[0029] When the protective shell 14 is used to protect the two ends of the folding-line roof truss body 12, the pull ring 18 is rotated so that the pull ring 18 drives the fixing rod 16 to rotate, so that the tail end of the fixing rod 16 rotates on the inner wall of the fixing ring 17 and disengages from the fixing ring 17, and then the fixing rod 16 is pulled out from the inner wall of the connecting ring 15, and then the protective shell 14 is sleeved on the two ends of the folding-line roof truss body 12, so that the third protection pad 13 fits on the surface of the folding-line roof truss body 12, and then the fixing rod 16 passes through the connecting ring 15 and makes its tail end contact the fixing ring 17, and then the pull ring 18 is rotated to make the fixing rod 16 rotate and be threadedly fixed with the fixing ring 17, so that the protective shell 14 is connected and fixed to the folding-line roof truss body 12, effectively reducing the wear of the folding-line roof truss body 12 when it contacts the external placement platform.

[0030] Working principle: place the fixing block 5 on the top of the folding line roof truss body 12, and make the first protection pad 6 fit with the folding line roof truss body 12, then insert the support plate 8 into the fixing block 5 from the groove in the middle of the folding line roof truss body 12, and pass the support sleeve 10, and screw the screw 11 and the support sleeve 10 to fix them by thread. At this time, the first protection pad 6 and the second protection pad 9 fit on the surface of the folding line roof truss body 12, thereby reducing the friction and wear between the folding line roof truss body 12 and other devices. The hook of the external crane hooks the lifting ring 1, and lifts the folding line roof truss body 12 to make the folding line The foldable roof truss body 12 is in a vacant state, and then the protective shell 14 is put on the two ends of the foldable roof truss body 12, and the fixing rod 16 passes through the connecting ring 15 and rotates, so that the connecting ring 15 and the fixing ring 17 are threadedly fixed, so that the protective shell 14 is connected and fixed to the foldable roof truss body 12. At this time, the third protection pad 13 reduces the friction of the foldable roof truss body 12, and the foldable roof truss body 12 is hoisted and placed on the external placement table, so that the protective shell 14 protects the foldable roof truss body 12 to prevent excessive friction between the foldable roof truss body 12 and the external placement table when the foldable roof truss body 12 is placed.

Claims

1. A prestressed concrete folding line roof truss rollover protection device, comprising a lifting ring (1), characterized in that: The bottom of the lifting ring (1) is fixedly connected to a centralizing plate (2), the bottom of the centralizing plate (2) is fixedly connected to ropes (3) all around, the bottom of the ropes (3) is fixedly connected to a connecting plate (4), the bottom of the connecting plate (4) is fixedly connected to a fixed clamping block (5), the inner wall of the fixed clamping block (5) is fixedly connected to a first protection pad (6), the left and right sides of the bottom of the fixed clamping block (5) are slidably connected to connecting blocks (7), one side of the connecting block (7) is fixedly connected to a supporting plate (8), the top of the supporting plate (8) is fixedly connected to a second protection pad (9), the inner wall of the fixed clamping block (5) is penetrated and inserted with a supporting sleeve (10), and the middle part of the surface of the supporting sleeve (10) is penetrated and inserted with the inner wall of the connecting block (7) and the supporting plate (8), the inner walls of both ends of the supporting sleeve (10) are threadedly connected with screws (11), and the top of the second protection pad (9) is overlapped with a broken line roof truss body (12).

2. A prestressed concrete folding line roof truss rollover protection device according to claim 1, characterized in that: The left and right sides of the folded-line roof truss body (12) are sleeved with a third protection pad (13), the surface of the third protection pad (13) is fixedly connected with a protection shell (14), the third protection pad (13) and the left side of the bottom of the protection shell (14) are fixedly connected with a connecting ring (15), the inner wall of the connecting ring (15) is slidably connected with a fixing rod (16), the third protection pad (13) and the right side of the bottom of the protection shell (14) are fixedly connected with a fixing ring (17), the tail end of the fixing rod (16) is threadedly connected to the inner wall of the fixing ring (17), and the front end of the fixing rod (16) is fixedly connected with a pull ring (18).

3. The prestressed concrete folding line roof truss rollover protection device according to claim 1, characterized in that: The first protection pad (6) and the second protection pad (9) are both made of rubber, which makes them elastic.

4. The prestressed concrete folding line roof truss rollover protection device according to claim 2, characterized in that: The third protection pad (13) is made of rubber, which makes it elastic.

5. The prestressed concrete folding line roof truss rollover protection device according to claim 1, characterized in that: The inner top walls of the fixed block (5) and the first protection pad (6) are arc-shaped and can fit with the top of the broken-line roof truss body (12).

6. The prestressed concrete folding line roof truss rollover protection device according to claim 1, characterized in that: The support sleeve (10) is made of iron and has a solid middle portion.

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