Breakwater concrete pavement block hoisting clamp

Abstract

The utility model relates to the technical field of hoisting clamps, and discloses a bulwark concrete pavement block hoisting clamp which comprises a main beam, connecting arms and clamping arms, the connecting arms are fixedly arranged on the two sides of the main beam in the length direction through screws, the clamping arms are assembled between the two connecting arms in a hinged mode, and the clamping arms are connected with the main beam through screws. Lifting lugs are arranged at the tops of the two clamping arms at intervals, first lifting ropes are connected to the lifting lugs, and second lifting ropes are connected to the two ends of the main beam in the length direction. The bulwark concrete pavement block hoisting clamp has the advantages of being low in manufacturing cost, high in clamping efficiency, convenient to operate, capable of meeting the hoisting requirements of different specifications of pavement blocks and easy to achieve, and has high creativity.

Description

TECHNICAL FIELD

[0001] The utility model relates to hoist clamp technical field, concretely is a kind of breakwater concrete armor block hoist clamp. BACKGROUND

[0002] Antifer block is also called breakwater concrete armor block, which is a structure with longitudinal arc grooves arranged on four sides of a concrete block in a quadrangular structure. In a repair project, 75t and 50t breakwater concrete armor blocks need to be installed for repair work.

[0003] There are mainly two methods for hoisting traditional breakwater concrete armor blocks:

[0004] Method one: using traditional clamps for hoisting, but the clamp has the following disadvantages:

[0005] (1) According to calculation, the clamp needs 10t of steel, which is heavy and expensive;

[0006] (2) The clamp has poor universality and cannot be used for breakwater concrete armor blocks of different weights (75t and 50t breakwater concrete armor blocks, one size of clamp cannot meet the needs of two or more different sizes of breakwater concrete armor blocks);

[0007] (3) The contact position between the traditional clamp chuck and the armor block is only linear contact, not surface contact, which has certain safety hazards;

[0008] Method two: embedding round steel lifting lugs in breakwater concrete armor blocks, but the clamp has the following disadvantages:

[0009] (1) The cost of embedding lifting lugs is high;

[0010] (2) This method may cause cracking of concrete around the lifting lugs due to rusting of the lifting lugs in the later period. INVENTION CONTENTS

[0011] In view of the deficiencies of the prior art, the utility model provides a breakwater concrete armor block hoist clamp, which solves the problem of narrow applicability of traditional clamps and cannot meet the needs of clamping various armor blocks.

[0012] The utility model provides the following technical scheme:

[0013] A breakwater concrete armor block hoist clamp, characterized by comprising a main beam, a connecting arm and a clamping arm, the connecting arm is fixed on both sides of the main beam in the length direction through screws, the clamping arm is hingedly assembled between the two connecting arms, lifting lugs are arranged at the top of the two clamping arms, lifting rope one is connected to the lifting lugs, and lifting rope two is connected to both ends of the main beam in the length direction.

[0014] Moreover, the connecting arm comprises a vertical arm fixed at the end of the main beam, and a hinged arm hinged at the lower ends of the vertical arm through connecting shafts, and the clamping arms are hinged between every two opposite hinged arms.

[0015] Moreover, a positioning assembly is arranged in the middle of the inner side of each clamping arm, and the positioning assembly is arranged in the mounting groove, and the positioning assembly comprises a sleeve, one end of the sleeve is arranged in the mounting groove, an inner sleeve is slidably sleeved at the other end of the sleeve, an abutting block is arranged at the outer end of the inner sleeve, and a connecting spring is arranged in the sleeve, one end of the connecting spring is arranged on the mounting groove, and the other end of the connecting spring is connected to the abutting block.

[0016] Moreover, a sliding groove is arranged at the inner side of the clamping arm, a telescopic block is slidably connected to the sliding groove through a sliding block, the sliding block is arranged on the telescopic block, a pin shaft is fixedly arranged at the outer side of the sliding block, and anti-skid ribs are arranged at the inner sides of the clamping arm and the telescopic block.

[0017] The main beam comprises an electric telescopic cylinder and a telescopic arm, and the telescopic arm is driven and arranged on the cylinder rod at the two ends of the electric telescopic cylinder.

[0018] Compared with the prior art, the utility model has the following beneficial effects:

[0019] 1. The breakwater concrete armor block hoisting clamp is used, the clamp is first sleeved on the armor block, then the main beam is lifted by the crane, the two clamping arms at the lower part of the main beam clamp the armor block, the clamping arms on both sides clamp more tightly with the upward lifting, and the armor block is clamped.

[0020] 2. The breakwater concrete armor block hoisting clamp is provided with the positioning assembly, the arc-shaped abutting head is abutted in the arc-shaped groove of the armor block during clamping, the contact area of the clamping arm and the armor block is increased, the stability of the device during clamping is improved, the leftward and rightward deviation of the concrete armor block is effectively prevented, the positioning effect is achieved, the stability of hoisting is further improved, and the device is safer and more reliable.

[0021] 3. The breakwater concrete armor block hoisting clamp is provided with the length-adjustable clamping arm structure, the clamping arm can be adapted to the clamping of armor blocks of different specifications, the clamping arm and the connecting arm are adapted to the armor block to be clamped, and the reliability of hoisting is improved.

[0022] 4. This breakwater concrete revetment block hoisting fixture has the advantages of low cost, high clamping efficiency, convenient operation, meeting the hoisting requirements of revetment blocks of different specifications, and easy implementation. It is a highly innovative breakwater concrete revetment block hoisting fixture. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0024] Figure 2 This is a schematic diagram of the other side of the structure of this utility model;

[0025] Figure 3 This is a partial structural diagram of the present invention;

[0026] Figure 4 This is a schematic diagram of the lifting lug structure of this utility model;

[0027] Figure 5 This is a schematic diagram of the positioning component structure of this utility model.

[0028] In the diagram: 1. Main beam; 2. Vertical arm; 3. Connecting shaft; 4. Screw; 5. Electric telescopic cylinder; 6. Positioning assembly; 7. Lifting rope one; 8. Lifting rope two; 9. Concrete facing block;

[0029] 501. Clamping arm; 502. Lifting lug; 503. Slide groove; 504. Telescopic block; 505. Sliding block; 506. Pin; 507. Hinge arm; 508. Anti-slip ridge;

[0030] 601. Sleeve; 602. Inner cylinder; 603. Connecting spring; 604. Abutment block. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Please see Figure 1 - Figure 5 A hoisting fixture for concrete revetment blocks of a breakwater includes a main beam 1, connecting arms and clamping arms. The outer sides of the main beam 1 are fixed to the connecting arms by screws 4. The clamping arms are hinged between the two connecting arms. The top of the two clamping arms are provided with lifting lugs 502 at intervals. The inner wall of the lifting lugs 502 is equipped with a first lifting rope 7. The two ends of the main beam 1 in the length direction are connected with a second lifting rope 8.

[0033] In a preferred embodiment, the positioning assembly 6 is further included, a mounting groove is arranged in the middle of the inner side of the clamping arm, and the positioning assembly 6 is mounted in the mounting groove. The positioning assembly 6 includes a sleeve 601, the other end of the sleeve 601 is slidingly sleeved with an inner cylinder 602, the inner cylinder 602 is internally mounted with a connecting spring 603, and the end of the inner cylinder 602 away from the sleeve 601 is fixedly mounted with an abutting block 604;

[0034] In a preferred embodiment, the number of the positioning assembly 6 is two groups, and the two groups of the positioning assembly 6 are symmetrically distributed on the outer side of the concrete pavement block 9. The end of the abutting block 604 close to the concrete pavement block 9 is arc-shaped, and the arc is matched with the arc of the outer side of the concrete pavement block 9. One end of the connecting spring 603 is connected with the outer side of the abutting block 604, and the other end of the connecting spring 603 is connected with the outer side of the clamping arm 501.

[0035] By the above structure, when the concrete pavement block 9 is clamped, and the end of the abutting block 604 close to the concrete pavement block 9 is arc-shaped, and the arc is matched with the arc of the arc-shaped groove arranged on the outer side of the concrete pavement block 9, it can be known that the outer side of the abutting block 604 can abut in the groove of the concrete pavement block 9, so that the two abut each other, thereby the contact area between the two can be increased, so that the stability of the device clamping can be increased.

[0036] In a preferred embodiment, the connecting arm includes a vertical arm 2, the inner wall of the vertical arm 2 is rotationally connected with a hinged arm 507 through a connecting shaft 3, the main beam 1 includes an electric telescopic cylinder 5, the two end cylinder rods of the electric telescopic cylinder 5 are drivingly mounted with telescopic arms, the model of the electric telescopic cylinder 5 is TAIYO double-acting 2-stage telescopic oil cylinder 70T-2 series, two groups of the main beam 1 are connected with the two side telescopic arms of the electric telescopic cylinder 5, and the main beam 1 and the vertical arm 2 are connected through a screw 4.

[0037] The inner side of the clamping arm 501 is provided with a sliding groove 503, the inner wall of the clamping arm 501 is slidingly connected with a telescopic block 504, the outer side of the end of the telescopic block 504 close to the sliding groove 503 is fixedly mounted with a sliding block 505, the outer side of the sliding block 505 is fixedly mounted with a pin shaft 506, and the outer sides of the clamping arm 501 and the telescopic block 504 are fixedly mounted with anti-skid convex edges 508.

[0038] Through the driving of the electric telescopic cylinder 5, the telescopic arms at the two ends of the electric telescopic cylinder 5 can be telescoped, so that the length of the main beam 1 can be adjusted, so as to adapt to the length of the clamping arm, and the device can clamp the concrete pavement block 9 of different sizes.

[0039] In a preferred embodiment, the inner wall of the lug 502 is sleeved with the outer side of the hoisting rope 1, the pin shaft 506 is rotatably connected with the inner wall of the vertical arm 2 through the connecting shaft 1, the sliding block 505 slides in the inner wall of the sliding groove 503, and the clamping arm 501 is rotatably connected with the hinged arm 507 through the pin shaft 506;

[0040] With the above structure, when the hoisting rope 1 is pulled by the hoisting rope 2 and then lowered again, the two clamping arms 501 will rotate through the connecting shaft 3 and contact the outer side of the concrete pavement block 9, and the outer side of the anti-skid rib 508 can contact the outer side of the concrete pavement block 9, so that the friction between them is increased, so that the concrete pavement block 9 will not fall off, thereby clamping and fixing the concrete pavement block 9.

[0041] The working principle is that when the device is used, the crane reaches the area where the concrete pavement block 9 is stored, the hook head of the crane hook is connected with the lug 502 through the hoisting rope 1, the hook head of the main hook of the crane is connected with the vertical arm 2 through the hoisting rope 2, and the connecting arm is unfolded and slowly lowered by pulling the hoisting rope 1 through the crane, so that the clamping arm is placed on the outer side of the concrete pavement block 9.

[0042] At this time, the outer side of the abutting block 604 can abut against the arc-shaped groove on the outer side of the concrete pavement block 9, so that the two abut against each other, and the contact area between them is increased.

[0043] Then, under the action of the electric telescopic cylinder 5, the length adjustment of the main beam is completed, and the telescopic block 504 slides out of the inner wall of the clamping arm 501, so that the length adjustment of the clamping arm is completed, so that the size of the device can adapt to the concrete pavement block 9 to be lifted.

[0044] At this time, the worker can check whether the concrete pavement block 9 and the outer side of the anti-skid rib 508 are tightly attached to each other, and after confirming that there is no error, the crane operator is informed to loosen the hoisting rope 1 of the hook head of the small hook and slowly lift the hoisting rope 2 of the main hook head, so that the concrete pavement block 9 is clamped and lifted.

[0045] When the concrete pavement block 9 is lifted into place and lowered to almost contact the ground, the positioning assembly 6 opposite to it is opened by the operation, the hoisting rope 2 is no longer stressed, the clamping arm 501 is lifted through the hoisting rope 1, the connecting arm and the clamping arm are unfolded, and the concrete pavement block 9 is separated from the concrete pavement block 9, so that the concrete pavement block 9 is lifted and transferred.

[0046] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and modifications can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A breakwater concrete armour block lifting clamp characterised in that: The utility model provides a kind of crane, including main beam (1), connecting arm and clamping arm (501), connecting arm is fixed with in the length direction both sides of the main beam (1) by screw (4), clamping arm (501) is hingedly equipped between two connecting arms, and the top of two clamping arms (501) is provided with lifting lug (502) at interval, lifting rope one (7) is connected on the lifting lug (502), and lifting rope two (8) is connected in the length direction both ends of the main beam (1).

2. A breakwater concrete armour unit lifting clamp according to claim 1, characterised in that: The connecting arm includes vertical arm (2) and hinged arm (507), the vertical arm (2) is fixed in the end of main beam (1), and the hinged arm (507) is hingedly connected in the lower part both ends of vertical arm (2) by connecting shaft (3), and clamping arm (501) is hingedly connected between two opposite hinged arms (507).

3. A breakwater concrete armor block lifting clamp according to claim 1, characterised in that: It also includes positioning assembly (6), and mounting groove is provided in the middle of the inner side of each clamping arm (501), and positioning assembly (6) is installed in the mounting groove, the positioning assembly (6) includes sleeve (601), one end of the sleeve (601) is installed in the mounting groove, the other end of the sleeve (601) is slidably sleeved with inner cylinder (602), abutting block (604) is installed in the outer end of inner cylinder (602), connecting spring (603) is arranged in the sleeve (601), one end of the connecting spring (603) is installed on the mounting groove, and the other end is connected to the abutting block (604).

4. A breakwater concrete armor block lifting clamp according to claim 1, characterised in that: Sliding slot (503) is opened in the inner side both ends of the clamping arm (501), and telescopic block (504) is slidably connected with sliding block (505) on the sliding slot (503), the sliding block (505) is installed on the telescopic block (504), the outer side of the sliding block (505) is fixedly installed with pin shaft (506), and anti-skid ribs (508) are arranged in the inner side of the clamping arm (501) and telescopic block (504). The main beam (1) includes electric telescopic cylinder (5) and telescopic arm, and telescopic arm is driven and installed on the both end cylinder rod of electric telescopic cylinder (5).

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