Safety protection structure for dam construction

Abstract

The utility model relates to a safety protection structure for dam construction, which comprises two supports, the top ends of the two supports are connected and fixed through a cross beam, hoisting equipment is arranged above the cross beam, a sling is connected onto the hoisting equipment, and the sling is connected with the cross beam. The end, away from the hoisting equipment, of the sling penetrates through the middle section of the cross beam and extends to the position below the cross beam, the bottom end of the sling is connected with an anti-falling structure, and during hoisting, the connecting rope pulls the two sliding plates to move oppositely under the gravity effect of the hanging basket, so that the lap joint part is separated from the limiting plate welded to the support, and the hanging basket can move up and down for hoisting work; when the sling is broken, the connecting rope loses the traction effect on the sliding plates, and at the moment, the spring can push the two sliding plates to move reversely under the elastic force effect, so that the two clamping parts slide reversely under the pushing effect of the sliding plates and are in lap joint in clamping grooves formed in limiting plates to support the hanging basket, and the purpose of preventing the hanging basket from falling from a high position is achieved. And the safety is greatly improved.

Description

Technical Field

[0001] This utility model belongs to the technical field of construction hoisting equipment, specifically relating to a safety protection structure for dam construction. Background Technology

[0002] A dam is a dike that blocks water from a river, such as a reservoir or a river. Generally, a reservoir dam consists of a main dam, a secondary dam, a normal spillway, an emergency spillway, a newly added emergency spillway, the Lingzheng Canal culvert, and a power station.

[0003] During the construction of dams, materials located at lower levels are typically transported to higher levels using hoisting equipment. During hoisting, there is a risk that the slings may break due to excessive tension. If the slings break, the heavy objects will fall rapidly from the height, posing a significant safety hazard. Utility Model Content

[0004] The purpose of this utility model is to provide a simple and reasonably designed safety protection structure for dam construction in order to solve the above problems.

[0005] This utility model achieves the above objectives through the following technical solutions:

[0006] A safety protection structure for dam construction includes two supports fixed at their top ends by a crossbeam. A lifting device is installed above the crossbeam, and a sling is connected to the lifting device. The end of the sling away from the lifting device extends through the middle section of the crossbeam to the bottom of the crossbeam. A fall arrestor structure is connected to the bottom of the fall arrestor structure, and a basket is fixedly installed at the bottom of the fall arrestor structure. Multiple limiting plates are fixedly connected to the side walls of the two supports on adjacent sides, which are equidistantly distributed along the height direction of the supports. The fall arrestor structure includes a sleeve installed below the crossbeam and parallel to the crossbeam. A notch is opened on the upper surface of the middle section of the sleeve. Sliding plates are slidably connected to the inner cavities of both ends of the sleeve. A spring is fixedly connected between the adjacent ends of the two sliding plates. The ends of the two sliding plates that are far apart extend outward to form a locking part. A connecting rope is fixedly connected to the upper surface of the adjacent ends of the two sliding plates. The top ends of the two connecting ropes are fixedly connected to the same lifting ring. The bottom end of the sling is fixedly connected to the lifting ring.

[0007] As a further optimization of this utility model, each of the two brackets is fixedly connected to a base that is perpendicular to the bracket, and an inclined support plate is welded between the end of the base and the bracket.

[0008] As a further optimization scheme of the utility model, the hoisting equipment includes a winding roller rotatably connected to the upper side of the middle section of the cross beam, a pulling machine is installed on the cross beam at one end of the winding roller, the output end of the pulling machine is fixed to the end of the winding roller, and the top end of the sling is connected to the winding roller.

[0009] As a further optimization scheme of the utility model, the upper surface of the limiting plate is provided with a clamping groove with a width matching the width of the clamping part, and the distance between the adjacent two limiting plates is greater than the thickness of the clamping part.

[0010] As a further optimization scheme of the utility model, when the spring is in an extended state, the distance between the two ends of the clamping part away from each other is greater than the distance between the two supports, and when the spring is in a compressed state, a gap exists between the end of the clamping part away from the sliding plate and the free end of the limiting plate for the upward and downward movement of the clamping part.

[0011] As a further optimization scheme of the utility model, the adjacent ends of the two sliding plates are fixedly connected with limiting columns arranged opposite to each other, and the distance between the two limiting columns is less than the maximum compression length of the spring.

[0012] As a further optimization scheme of the utility model, the two ends of the hanging basket are fixedly connected with sliding sleeves, and the two sliding sleeves are respectively sleeved on the corresponding supports and can slide along the height direction of the supports.

[0013] The utility model has the advantages that when hoisting, the connecting rope pulls the two sliding plates to move towards each other under the gravity of the hanging basket, so that the clamping part is separated from the limiting plate welded on the support, the hanging basket can move up and down for hoisting work, when the sling is broken, the connecting rope loses the traction effect on the sliding plate, at this time, the spring can push the two sliding plates to move reversely under the elastic force, so that the two clamping parts reversely slide under the pushing effect of the sliding plate, are clamped in the clamping groove of the limiting plate to support the hanging basket, thereby preventing the hanging basket from falling from a high place, and the safety is greatly improved. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 is the overall structure schematic view of the utility model;

[0015] Figure 2 is the connection schematic view of the overall hanging basket and the anti-falling structure of the utility model;

[0016] Figure 3 is the utility model Figure 2 is the enlarged schematic view of the local details in A of the utility model;

[0017] Figure 4 is the sectional structure schematic view of the utility model Figure 2 .

[0018] In the figure: 1, support; 2, base; 3, crossbeam; 4, winding roller; 5, pulling machine; 6, sling; 7, limiting plate; 8, clamping groove; 9, lifting ring; 10, sleeve; 11, sliding plate; 12, spring; 13, connecting rope; 14, clamping part; 15, limiting column; 16, hanging basket; 17, sliding sleeve. DETAILED DESCRIPTION

[0019] The following further describes the present application in conjunction with the drawings. It is necessary to point out here that the following detailed description is only used to further illustrate the present application and cannot be understood as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application according to the above application content.

[0020] EMBODIMENT

[0021] As shown in the figure, a safety protection structure for dam construction includes two supports 1 fixedly connected by a crossbeam 3 at the top end, and a portal frame structure is formed between the two supports 1 and the crossbeam 3. The bottom end of each support 1 is fixedly connected with a base 2 arranged perpendicularly to the support 1. An inclined support plate is welded between the end of the base 2 and the support 1. The base 2 and the support plate are arranged to improve the stability of the support 1. Figure 1 Figure 4 A hoisting device is arranged above the crossbeam 3. A sling 6 is connected to the hoisting device. The end of the sling 6 away from the hoisting device extends through the middle section of the crossbeam 3 to below the crossbeam 3. The bottom end of the sling 6 is connected with an anti-falling structure. The bottom of the anti-falling structure is fixedly installed with a hanging basket 16. The hoisting device includes a winding roller 4 rotatably connected above the middle section of the crossbeam 3. A pulling machine 5 is installed on the crossbeam 3 at one end of the winding roller 4. The output end of the pulling machine 5 is fixed to the end of the winding roller 4. When the pulling machine 5 is started, the winding roller 4 can be driven to rotate by the pulling machine 5. The winding roller 4 winds the sling 6. The sling 6 pulls the hanging basket 16 installed at the bottom of the anti-falling structure upwards. The materials in the hanging basket 16 are hoisted to a high place for use.

[0022] A hoisting device is arranged above the crossbeam 3. A sling 6 is connected to the hoisting device. The end of the sling 6 away from the hoisting device extends through the middle section of the crossbeam 3 to below the crossbeam 3. The bottom end of the sling 6 is connected with an anti-falling structure. The bottom of the anti-falling structure is fixedly installed with a hanging basket 16. The hoisting device includes a winding roller 4 rotatably connected above the middle section of the crossbeam 3. A pulling machine 5 is installed on the crossbeam 3 at one end of the winding roller 4. The output end of the pulling machine 5 is fixed to the end of the winding roller 4. When the pulling machine 5 is started, the winding roller 4 can be driven to rotate by the pulling machine 5. The winding roller 4 winds the sling 6. The sling 6 pulls the hanging basket 16 installed at the bottom of the anti-falling structure upwards. The materials in the hanging basket 16 are hoisted to a high place for use.

[0023] ​The two supports 1 are fixedly connected with a plurality of limiting plates 7 distributed equidistantly along the height direction of the support 1 on the side wall of the adjacent side, the anti-falling structure comprises a sleeve 10 arranged below the cross beam 3 and arranged in parallel with the cross beam 3, a notch is formed on the upper surface of the middle section of the sleeve 10, the inner cavities of the two ends of the sleeve 10 are slidably connected with sliding plates 11, the adjacent ends of the two sliding plates 11 are fixedly connected with springs 12, when the spring 12 is in an extended state, the distance between the two ends of the clamping portion 14 away from each other is greater than the distance between the two supports 1, when the spring 12 is in a compressed state, there is a gap between the end of the clamping portion 14 away from the sliding plate 11 and the free end of the limiting plate 7 for the upward and downward movement of the clamping portion 14;

[0024] The adjacent ends of the two sliding plates 11 are fixedly connected with limiting columns 15 arranged opposite to each other, the distance between the two limiting columns 15 is less than the maximum compression length of the spring 12, when the two sliding plates 11 slide towards each other to a certain distance, the free ends of the two limiting columns 15 abut against each other, preventing the two sliding plates 11 from continuing to slide towards each other, thereby avoiding the problem that the spring 12 is excessively compressed, causing the spring 12 to be unable to push the sliding plate 11 to reset;

[0025] The ends of the two sliding plates 11 away from each other extend outward to form clamping portions 14, the upper surface of the limiting plate 7 is provided with a clamping groove 8 with a width matching the width of the clamping portion 14, and the distance between the adjacent two limiting plates 7 is greater than the thickness of the clamping portion 14, so that the clamping portion 14 can be clamped into the clamping groove 8 formed on the limiting plate 7 when the hanging basket 16 falls, preventing the hanging basket 16 from falling from a high place,

[0026] The upper surfaces of the adjacent ends of the two sliding plates 11 are fixedly connected with connecting ropes 13, the total length of the two connecting ropes 13 is greater than the length of the spring 12 in the extended state, the top ends of the two connecting ropes 13 are fixedly connected with the same lifting ring 9, and the bottom end of the sling 6 is fixedly connected with the lifting ring 9, when the hanging basket 16 is lifted, the two connecting ropes 13 will exert a transverse pulling force on the ends of the two sliding plates 11 under the action of the gravity of the hanging basket 16, pulling the two sliding plates 11 to move towards each other and compressing the spring 12, at this time, the hanging basket 16 can move up and down along the height direction of the support 1 to hoist materials, when the sling 6 or the connecting rope 13 breaks, the transverse pulling force on the ends of the sliding plate 11 disappears, at this time, the spring 12 can push the two sliding plates 11 to move in the opposite direction under the action of its own elastic force, so that the clamping portion 14 is lapped on the limiting plate 7 welded on the inner wall of the support 1, preventing the hanging basket 16 from continuing to fall;

[0027] The two ends of the hanging basket 16 are fixedly connected with sliding sleeves 17, the two sliding sleeves 17 are respectively sleeved on the corresponding supports 1 and can slide along the height direction of the support 1, the sliding sleeve 17 is arranged to guide the movement path of the hanging basket 16, and the deviation of the hanging basket 16 in the process of sliding up and down is avoided as much as possible, so that the problem that the clamping portion 14 cannot be accurately lapped on the limiting plate 7 when the spring 12 is extended is avoided.

[0028] It should be noted that the safety protection structure for dam construction, when in use, the material is placed in the basket 16, and then the pulling machine 5 is installed on the cross beam 3, the winding roller 4 is driven to rotate the hoisting cable 6 by the pulling machine 5, since the two sliding plates 11 are respectively slidably connected with the two ends of the sleeve 10, at this time the connecting rope 13 is pulled to the middle section of the sleeve 10 by the gravity of the basket 16, and the spring 12 is squeezed to shrink, so that the spacing between the clamping portions 14 at the ends of the two sliding plates 11 is smaller than the spacing between the limiting plates 7 installed on the two side supports 1, at this time the basket 16 can be moved upward under the guidance of the sliding sleeve 17, and the construction material is hoisted to the appropriate position, when the hoisting cable 6 is broken, the connecting rope 13 loses the traction effect on the sliding plate 11, at this time the spring 12 can push the two sliding plates 11 to move reversely under the elastic force, so that the two clamping portions 14 are reversely slid under the pushing effect of the sliding plate 11 and are lapped into the clamping groove 8 opened in the limiting plate 7, the basket 16 is supported by the limiting plate 7 cooperating with the clamping portion 14, so as to prevent the basket 16 from falling from a high place, and the safety is greatly improved.

[0029] The above-described embodiments only express several embodiments of the present application, and the description is more specific and detailed, but it should not be understood as limiting the scope of the present application. It should be noted that for ordinary skilled persons in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which belong to the protection scope of the present application.

Claims

1. A safety protection structure for dam construction, comprising two supports (1) fixed at their top ends by a crossbeam (3), a lifting device being provided above the crossbeam (3), a sling (6) being connected to the lifting device, the end of the sling (6) away from the lifting device extending through the middle section of the crossbeam (3) to below the crossbeam (3), a fall protection structure being connected to the bottom end of the sling (6), and a basket (16) being fixedly installed at the bottom of the fall protection structure, characterized in that: Two said adjacent side wall of the support (1) are fixedly connected with a plurality of equidistantly distributed along the height direction of the support (1) limiting plate (7), the anti-falling structure includes the sleeve (10) which is arranged below the crossbeam (3) and is arranged in parallel with the crossbeam (3), the upper surface of the middle section of the sleeve (10) is provided with a notch, the inner cavity of both ends of the sleeve (10) is slidably connected with the sliding plate (11), the adjacent ends of two said sliding plates (11) are fixedly connected with the spring (12), the ends of two said sliding plates (11) away from each other extend outward to form the clamping part (14), the upper surfaces of the adjacent ends of two said sliding plates (11) are fixedly connected with the connecting rope (13), the top ends of two said connecting ropes (13) are fixedly connected with the same lifting ring (9), and the bottom end of the sling (6) is fixedly connected with the lifting ring (9).

2. The safety protection structure for dam construction according to claim 1, characterized in that: Two said bottom ends of the support (1) are fixedly connected with the base (2) which is arranged perpendicularly with the support (1), and the inclined supporting inclined plate is welded between the end of the base (2) and the support (1).

3. The safety protection structure for dam construction according to claim 1, characterized in that: The hoisting equipment comprises a winding roller (4) rotatably connected to the upper surface of the middle section of the crossbeam (3), a pulling machine (5) is mounted on the crossbeam (3) at one end of the winding roller (4), the output end of the pulling machine (5) is fixedly connected with the end of the winding roller (4), and the top end of the sling (6) is connected to the winding roller (4).

4. The safety protection structure for dam construction according to claim 1, characterized in that: The upper surface of the limiting plate (7) is provided with a clamping groove (8) with a width matching the width of the clamping part (14), and the spacing between the adjacent two limiting plates (7) is greater than the thickness of the clamping part (14).

5. The safety protection structure for dam construction according to claim 1, characterized in that: When the spring (12) is in an extended state, the spacing between the ends of two said clamping parts (14) away from each other is greater than the spacing between two said supports (1), and when the spring (12) is in a compressed state, there is a gap between the end of the clamping part (14) away from the sliding plate (11) and the free end of the limiting plate (7) for the upward and downward movement of the clamping part (14).

6. The safety protection structure for dam construction according to claim 1, characterized in that: Two said adjacent ends of the sliding plate (11) are fixedly connected with the limiting column (15) arranged opposite to each other, and the spacing between two said limiting columns (15) is less than the maximum compression length of the spring (12).

7. The safety protection structure for dam construction according to claim 1, characterized in that: Both ends of the basket (16) are fixedly connected with the sliding sleeve (17), and two said sliding sleeves (17) are respectively sleeved on the corresponding said support (1) and can slide along the height direction of the support (1).

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