A concrete brick lifting fixture with high degree of freedom

Abstract

The present invention discloses a concrete brick hoisting fixture with a high degree of freedom, comprising a frame and two clamping arms slidably mounted on opposite sides of the frame, at least one telescopic clamping foot mounted at the bottom of each clamping arm, and the telescopic clamping feet on both sides are arranged relatively to each other, and a plurality of pull rods are arranged between the telescopic clamping feet and the frame, one end of the pull rod is connected and fixed to the telescopic clamping foot, and the other end is hinged to the frame. The concrete brick hoisting fixture with a high degree of freedom of the present invention can realize adaptive adjustment quickly and efficiently when dealing with bricks of different lengths by means of the telescopic clamping feet, in conjunction with components such as slide rails, rotating oil cylinders and rocker arms, and can also keep the clamping feet on both sides consistent by means of the synchronous shaft, so as to prevent the clamping effect from being affected by the different lengths of the clamping feet.

Description

Technical Field

[0001] The invention relates to the technical field of clamps, and in particular to a concrete brick hoisting clamp with a high degree of freedom. Background Art

[0002] A fixture is an object used to fix the object to be processed during the mechanical manufacturing process so that it occupies the correct position for construction or inspection. In the production of construction and building materials, concrete brick blanks (also called concrete block blanks) are heavy. When moving and transporting them during the processing process, a crane or forklift equipped with a fixture is required to fix and move them.

[0003] Existing concrete brick hoisting clamps generally use two clamping plates for hydraulic clamping, which can effectively fix the bricks, but they usually only have one-way freedom in the clamping direction, that is, the two clamping plates are separated and moved to the two sides of the bricks under the drive of the crane and then clamped together. In actual production, due to the large differences in the size of bricks, conventional clamps have gradually become difficult to meet production needs: when the length and width of the bricks are too small or too large, they can only be clamped by replacing clamps of corresponding specifications, and the height of the bricks must also correspond to the clamps. In addition, the bricks must be rotated so that the clamps are parallel to the sides of the bricks to achieve fit for easy clamping. The clamp has extremely low clamping efficiency and poor applicability, which directly affects production efficiency and production costs.

[0004] Therefore, in view of the above-mentioned technical problems, it is necessary to provide a new technical solution. Summary of the invention

[0005] The purpose of the present invention is to provide a hoisting fixture with a higher degree of freedom and capable of adapting to bricks of various specifications.

[0006] In order to solve the above technical problems, the present invention provides a concrete brick hoisting fixture with a high degree of freedom, and the specific technical solution is as follows:

[0007] A high degree of freedom concrete brick lifting fixture, comprising a frame and two clamping arms slidably mounted on opposite sides of the frame, at least one telescopic clamping foot mounted at the bottom of each clamping arm, and the telescopic clamping feet on both sides are arranged opposite to each other, a plurality of pull rods are arranged between the telescopic clamping foot and the clamping arm, one end of the pull rod is connected and fixed to the telescopic clamping foot, and the other end is hinged to the clamping arm;

[0008] The telescopic clamping foot comprises a telescopic mechanism, a slide rail and a clamping foot anti-skid pad as a clamping plate, wherein the clamping foot anti-skid pad comprises two moving parts that can move in opposite directions, each moving part is connected to the telescopic mechanism and slides along the slide rail through the drive of the telescopic mechanism.

[0009] Preferably, the foot-clamping anti-slip pad further comprises at least one middle portion, which is located between the two moving portions and fixed at the center of the slide rail.

[0010] Preferably, the telescopic mechanism comprises a rocker arm, which rotates around its own center, and a connecting rod is respectively provided at both ends of the rocker arm, one end of the connecting rod is hinged to the rocker arm, and the other end is respectively hinged to the two moving parts.

[0011] Preferably, a hydraulic cylinder is provided between the slide rail and the clamp arm, and two ends of the hydraulic cylinder are respectively connected to the clamp arm and the slide rail to push the clamp foot anti-slip pads under the two clamp arms to move relative to each other.

[0012] Preferably, the telescopic mechanism further comprises a rotating oil cylinder, the rotating shaft of which is connected and fixed to the center of the rocker arm to drive the rocker arm to rotate.

[0013] Preferably, a mounting seat is fixed to one side of the foot-clamping anti-skid pad close to the slide rail, a slide rail matching portion adapted to the slide rail is fixed to the mounting seat close to the slide rail, and the foot-clamping anti-skid pad is slidably connected to the slide rail via the slide rail matching portion.

[0014] Preferably, a fixing seat is provided between the slide rail and the hydraulic cylinder, the slide rail is mounted on the fixing seat, and one end of the hydraulic cylinder close to the fixing seat is hinged to the fixing seat.

[0015] Preferably, the clamping arm comprises a horizontally arranged connecting beam, a cylinder seat is fixed on the connecting beam, and one end of the hydraulic cylinder close to the clamping arm is hinged to the cylinder seat.

[0016] Preferably, a retractable synchronization shaft is provided between the two clamp arms, and the two ends of the synchronization shaft are respectively connected to the retractable clamping feet at the bottom of the corresponding clamp arms through a connecting mechanism. Preferably, the end of the synchronization shaft is hinged to the moving part of the clamp foot anti-slip pad through the connecting mechanism.

[0017] Preferably, a rotating mechanism is installed above the frame to drive the lifting fixture to rotate.

[0018] The high-freedom concrete brick hoisting fixture of the present invention has the following beneficial effects:

[0019] The high-freedom concrete brick hoisting fixture of the present invention can realize adaptive adjustment quickly and efficiently by using telescopic clamping feet to deal with bricks of different lengths, in cooperation with components such as slide rails, rotating oil cylinders and rocker arms, and can also make the clamping feet on both sides consistent with each other by cooperating with a synchronous shaft, so as to prevent the clamping effect from being affected by the different lengths of the clamping feet. In addition, a rotating mechanism is arranged above the fixture, so that the fixture has the ability to rotate, and can be adjusted according to the brick placement angle, thereby improving work efficiency.

[0020] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solution of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 It is a structural schematic diagram of a concrete brick lifting fixture with a high degree of freedom;

[0023] Figure 2 for Figure 1 A schematic diagram of the structure of the middle telescopic clamping foot;

[0024] Figure 3 for Figure 2 Schematic diagram of the structure of the telescopic mechanism.

[0025] Among them, 1-frame; 2-clamp arm; 21-connecting beam; 22-pull rod; 23-clamp arm anti-slip pad; 3-rotating mechanism; 4-telescopic clamp foot; 41-telescopic mechanism; 411-rotating cylinder; 412-rocker arm; 413-connecting rod; 414-mounting seat; 415-slide rail matching part; 42-fixed seat; 43-slide rail; 44-hydraulic cylinder; 441-cylinder seat; 45-clamp foot anti-slip pad; 5-synchronizing shaft. DETAILED DESCRIPTION

[0026] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention. Example

[0027] See also Figures 1 to 3 A high degree of freedom concrete brick lifting fixture, comprising a frame 1 and two clamping arms 2 slidably mounted on opposite sides of the frame 1, at least one telescopic clamping foot 4 being mounted at the bottom of each clamping arm 2, and the telescopic clamping feet on both sides being arranged opposite to each other, a plurality of pull rods 22 being arranged between the telescopic clamping foot 4 and the clamping arm 2, one end of the pull rod being connected and fixed to the telescopic clamping foot, and the other end being hinged to the clamping arm;

[0028] The telescopic clamping foot 4 includes a telescopic mechanism 41, a slide rail 43 and a clamping foot anti-skid pad 45 as a clamping plate. The clamping foot anti-skid pad 45 includes two moving parts that can move in opposite directions. Each moving part is connected to the telescopic mechanism 41 and slides along the slide rail 43 through the drive of the telescopic mechanism 41.

[0029] The foot-gripping anti-slip pad 45 further includes at least one middle portion, which is located between the two moving portions and fixed at the center of the slide rail 43 .

[0030] The telescopic mechanism 41 includes a rocker arm 412, which rotates around its own center. A connecting rod 413 is respectively provided at both ends of the rocker arm. One end of the connecting rod 413 is hinged to the rocker arm, and the other end is respectively hinged to the two moving parts.

[0031] A hydraulic cylinder 44 is provided between the slide rail 43 and the clamp arm 2 , and two ends of the hydraulic cylinder 44 are respectively connected to the clamp arm 2 and the slide rail 43 to push the clamp foot anti-skid pads 45 under the two clamp arms to move relative to each other.

[0032] The telescopic mechanism 41 further includes a rotating oil cylinder 411 , the rotating shaft of which is connected and fixed to the center of the rocker arm 412 to drive the rocker arm to rotate.

[0033] A mounting seat 414 is fixed to one side of the foot-clamping anti-skid pad 45 close to the slide rail 43 , and a slide rail matching portion 415 matching the slide rail is fixed to one side of the mounting seat 414 close to the slide rail. The foot-clamping anti-skid pad is slidably connected to the slide rail via the slide rail matching portion.

[0034] A fixed seat 42 is provided between the slide rail 43 and the hydraulic cylinder 44 . The slide rail is mounted on the fixed seat 42 . One end of the hydraulic cylinder 44 close to the fixed seat is hinged to the fixed seat 42 .

[0035] The clamp arm 2 includes a horizontally arranged connecting beam 21 , on which a cylinder seat 441 is fixed, and one end of the hydraulic cylinder 44 close to the clamp arm is hinged to the cylinder seat 441 .

[0036] A retractable synchronous shaft 5 is provided between the two clamp arms 2, and the two ends of the synchronous shaft 5 are respectively connected to the retractable clamping feet 4 at the bottom of the corresponding clamp arms through a connecting mechanism. Preferably, the end of the synchronous shaft 5 is hinged to the moving part of the clamping foot anti-slip pad 45 through the connecting mechanism. The synchronous shaft can effectively synchronize the retractable clamping feet on both sides to prevent the clamping stress offset caused by asynchronous movement from affecting the quality of the brick.

[0037] A rotating mechanism 3 is installed above the frame 1 to drive the hoisting fixture to rotate. A clamping arm anti-skid pad 23 can also be provided at the bottom end of the clamping arm 2 to cope with special-shaped bricks.

[0038] The working principle of the high-freedom concrete brick hoisting fixture of this embodiment is as follows: when it is necessary to move the brick, firstly, the two clamping arms 2 are moved closer or farther away according to the size of the brick to pre-adjust the distance between the clamping feet, and then the hoisting fixture is moved to the brick so that the telescopic clamping feet 4 are located on both sides of the brick, and the two clamping arms 2 are moved closer for preliminary clamping, and the clamping foot anti-skid pad 45 further clamps the brick under the push of the hydraulic cylinder 44. When the length of the brick is long or short, the clamping foot anti-skid pad 45 has fewer clamping parts or the length exceeds the brick too much, in order to prevent the brick from being broken, deformed, etc., the rocker arm 412 is driven to rotate by the rotating oil cylinder 411 to push the connecting rod 413 to move, so that the two moving parts of the clamping foot anti-skid pad 45 move closer or farther away relative to change the length of the clamping foot anti-skid pad 45, so as to adapt to different brick lengths.

[0039] The beneficial effects of the present invention are as follows: the telescopic clamping feet enable the clamp to quickly and efficiently achieve adaptive adjustment when dealing with bricks of different lengths by cooperating with components such as slide rails, rotating cylinders and rocker arms. The clamping feet on both sides can also be kept consistent by cooperating with the synchronous shaft to prevent the different lengths of the clamping feet from affecting the clamping effect. There is no need to replace the clamping plate. In addition, a rotating mechanism is arranged above the clamp, which enables the clamp to have a rotating ability and can be adjusted according to the brick placement angle, thereby improving work efficiency.

[0040] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify and vary the above embodiments within the scope of the present invention.

Claims

1. A high degree of freedom concrete brick hoisting fixture, characterized in that: It comprises a frame (1) and two clamping arms (2) slidably mounted on opposite sides of the frame (1), at least one telescopic clamping foot (4) being mounted on the bottom of each clamping arm (2), and the telescopic clamping feet on both sides are arranged opposite to each other, and a plurality of pull rods (22) are arranged between the telescopic clamping foot (4) and the clamping arm (2), one end of the pull rod is connected and fixed to the telescopic clamping foot, and the other end is hinged to the clamping arm; The telescopic clamping foot (4) comprises a telescopic mechanism (41), a slide rail (43) and a clamping foot anti-skid pad (45) serving as a clamping plate, wherein the clamping foot anti-skid pad (45) comprises two moving parts capable of reverse movement, each moving part being connected to the telescopic mechanism (41) and sliding along the slide rail (43) through the drive of the telescopic mechanism (41); A retractable synchronizing shaft (5) is provided between the two clamping arms (2), and the two ends of the synchronizing shaft (5) are respectively connected to the retractable clamping feet (4) at the bottom of the corresponding clamping arms via a connecting mechanism, and the end of the synchronizing shaft (5) is hinged to the moving part of the clamping foot anti-slip pad (45) via the connecting mechanism.

2. The high-freedom concrete brick hoisting fixture according to claim 1 is characterized in that: The foot-clamping anti-slip pad (45) further comprises at least one middle portion, which is located between the two moving portions and is fixed at the center of the slide rail (43).

3. The high-freedom concrete brick hoisting fixture according to claim 1 or 2, characterized in that: The telescopic mechanism (41) comprises a rocker arm (412), the rocker arm (412) rotates around its own center, and a connecting rod (413) is respectively provided at both ends of the rocker arm, one end of the connecting rod (413) is hinged to the rocker arm, and the other end is respectively hinged to the two moving parts.

4. The high-freedom concrete brick hoisting fixture according to claim 3 is characterized in that: A hydraulic cylinder (44) is provided between the slide rail (43) and the clamp arm (2), and two ends of the hydraulic cylinder (44) are respectively connected to the clamp arm (2) and the slide rail (43) to push the clamp foot anti-slip pads (45) under the two clamp arms to move relative to each other.

5. The high-freedom concrete brick hoisting fixture according to claim 3 is characterized in that: The telescopic mechanism (41) further comprises a rotating oil cylinder (411), the rotating shaft of the rotating oil cylinder being connected and fixed to the center of the rocker arm (412) to drive the rocker arm to rotate.

6. The high-freedom concrete brick hoisting fixture according to claim 3 is characterized in that: A mounting seat (414) is fixed to one side of the foot-clamping anti-skid pad (45) close to the slide rail (43); a slide rail matching portion (415) matching the slide rail is fixed to one side of the mounting seat (414) close to the slide rail; the foot-clamping anti-skid pad is slidably connected to the slide rail via the slide rail matching portion.

7. The high-freedom concrete brick hoisting fixture according to claim 4 is characterized in that: A fixed seat (42) is provided between the slide rail (43) and the hydraulic cylinder (44), the slide rail is mounted on the fixed seat (42), and one end of the hydraulic cylinder (44) close to the fixed seat is hinged to the fixed seat (42).

8. The high-freedom concrete brick hoisting fixture according to claim 7 is characterized in that: The clamp arm (2) comprises a horizontally arranged connecting beam (21), to which a cylinder seat (441) is fixed, and one end of the hydraulic cylinder (44) close to the clamp arm is hingedly connected to the cylinder seat (441).

9. The high-freedom concrete brick hoisting fixture according to claim 1 is characterized in that: A rotating mechanism (3) is installed above the frame (1) to drive the lifting fixture to rotate.

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