Concrete product stacking clamp holder

Abstract

The invention relates to the field of concrete product transportation equipment, in particular to a concrete product stacking clamping device which comprises a traction mechanism, two rectangular pipes which are symmetrically arranged left and right are arranged on the traction mechanism in a left-right sliding mode, and the traction mechanism drives the two rectangular pipes to synchronously and reversely move. A synchronous frame is fixedly mounted on the side, away from the middle of the traction mechanism, of the lower portion of the rectangular pipe, the synchronous frame and the rectangular pipe are jointly provided with a clamping mechanism for clamping concrete products, and an anti-falling mechanism for preventing concrete from falling is arranged on the lower portion of the synchronous frame. The clamping plate and the floating clamping plate jointly abut against the side face of the prefabricated solid square pile, so that the pushing spring can push the floating clamping plate to flexibly adapt to the uneven side face of the prefabricated solid square pile, the clamping plate can be tightly attached to the prefabricated solid square pile, and the actual contact area of the clamping plate and the side face of the prefabricated solid square pile is guaranteed; and therefore, the phenomenon that the prefabricated solid square pile slides is prevented.

Description

Technical Field

[0001] The invention relates to the field of concrete product transportation equipment, in particular to a concrete product stacking clamp. Background Art

[0002] Precast solid square piles are a common type of concrete precast piles. Stacking precast solid square piles can make rational use of the site, facilitate lifting and retrieval, and improve construction efficiency. Precast solid square piles are usually in the shape of a rectangular parallelepiped. Currently, a clamp is mostly used to clamp the precast solid square piles first, and then a lifting device is used to lift the precast solid square piles through the clamp, and then the precast solid square piles are moved to the stacking position.

[0003] Existing clamps usually consist of a frame, a connecting rod assembly and a clamping plate. When lifting a prefabricated solid square pile, the clamping plates are placed on both sides of the prefabricated solid square pile, and then the connecting rod assembly is pulled upward by the lifting equipment. Under the action of gravity, the frame drives the clamping plate to remain unchanged in height, so that the connecting rod assembly drives the clamping plate to clamp on both sides of the prefabricated solid square pile, thereby locking the clamp and the prefabricated solid square pile together.

[0004] However, prefabricated solid square piles often have a large weight and volume, and there are differences in the manufacturing of prefabricated solid square piles, which makes the sides of the prefabricated solid square piles uneven. Therefore, when the clamp is clamped on the side of the prefabricated solid square pile, the clamp cannot be flexibly adjusted according to the uneven side of the prefabricated solid square pile, making it impossible for the clamp to adaptively fit tightly on the side of the pile body, which may cause the pile body to shift and slide during transportation.

[0005] In addition, when the precast solid square pile shakes at the moment of lifting or during the lifting process, the clamping force of the splint on the side of the precast solid square pile is easily unable to support the gravity of the precast solid square pile. The existing clamp lacks a structure to support and protect the bottom of the precast solid square pile, so the precast solid square pile may fall off from the clamp, which will pose a serious safety threat to the equipment and personnel below. Summary of the Invention

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is: a concrete product stacking clamp, including a pulling mechanism, on which two rectangular tubes arranged symmetrically on the left and right are slidingly provided, and the pulling mechanism drives the two rectangular tubes to move synchronously in opposite directions. A synchronization frame is fixedly installed on the side of the lower part of the rectangular tube away from the middle of the pulling mechanism, and the synchronization frame and the rectangular tube are jointly provided with a clamping mechanism for clamping concrete products, and the lower part of the synchronization frame is provided with an anti-falling mechanism for preventing concrete from falling.

[0007] The clamping mechanism includes a clamping plate that is slidably arranged on the side of the synchronous frame near the middle of the pulling mechanism. A number of floating clamps are arranged at equal intervals in the front-to-back direction on the clamping plate. The floating clamp slides along the thickness direction of the clamping plate. A number of anti-slip protrusions are arranged on the side of the floating clamp near the middle of the pulling mechanism. A pushing spring is arranged between the floating clamp and the clamping plate. A limiting component for locking the floating clamp is jointly provided on the clamping plate and the rectangular tube.

[0008] The anti-falling mechanism includes an L-shaped member arranged at the lower part of the synchronous frame through a moving component. The horizontal section of the L-shaped member is located between two clamping plates on one side close to the middle of the pulling mechanism. The anti-falling mechanism also includes a position locking component for locking the position of the L-shaped member.

[0009] Preferably, the limiting assembly includes a T-shaped plate fixedly mounted on the lower part of the rectangular tube close to the middle side of the pulling mechanism, a tension spring No. 1 is arranged between the rectangular tube and the clamping plate, and the lower part of the horizontal section of the T-shaped plate pushes the floating clamp toward the middle side of the pulling mechanism through the locking part.

[0010] Preferably, the locking portion includes several groups of locking teeth corresponding to the floating splints at equal intervals in the front-to-back direction. Each group is composed of two locking teeth on the front and rear sides of the floating splint that are symmetrically arranged at corresponding positions. Wedge blocks are provided at the positions corresponding to the locking teeth on the front and rear sides of the floating splint.

[0011] Preferably, the inclined surface of the wedge block is located at the lower part thereof and faces away from the middle part of the pulling mechanism, the teeth on the toothed part are located at the lower part of the corresponding wedge block, and the inclined surface of the toothed part at the corresponding position is arranged opposite to the inclined surface of the wedge block.

[0012] Preferably, the moving component includes two oblique guide grooves arranged vertically on the synchronization frame and passing through the synchronization frame front to back. The oblique guide grooves gradually incline from top to bottom toward the side close to the middle of the pulling mechanism. A moving plate is provided inside the synchronization frame. Two fixed columns arranged vertically are fixedly installed on the upper part of the moving plate. The fixed columns slide in the oblique guide grooves at corresponding positions.

[0013] Preferably, the side of the movable plate away from the middle of the pulling mechanism is slidably connected to the vertical section of the L-shaped part, and two bolts arranged up and down are provided on the vertical section of the L-shaped part. A number of positioning holes are opened on the movable plate at equal intervals in the vertical direction, and the L-shaped part is locked into a whole with the movable plate by bolts.

[0014] Preferably, the position locking assembly includes a trigger slider that slides up and down on the horizontal section of the L-shaped member, a No. 2 tension spring is provided between the trigger slider and the L-shaped member, two L-shaped locking members that are symmetrically arranged front and back are provided on the movable plate for sliding back and forth, a rectangular hole is provided at the lower part of the synchronization frame for inserting the horizontal section of the locking member, and the position locking assembly also includes a trigger part for driving the locking member to move.

[0015] Preferably, the position locking assembly also includes two symmetrically arranged locking plugs that are slid up and down on the horizontal section of the locking piece. The locking plug is a right-angled trapezoidal structure. A linkage support rod is fixedly installed inside the locking plug. An unlocking plate is slid back and forth inside the horizontal section of the locking piece. A V-shaped opening groove is provided on the unlocking plate. Grooves for the locking plugs to extend into are provided on the upper and lower side walls of the rectangular hole. A coil spring is provided between the locking plugs in the two corresponding positions.

[0016] Preferably, the trigger part includes a pulling plate fixedly mounted on the upper middle side of the trigger slider, and a sliding plate is provided on the lower part of the movable plate close to the middle side of the pulling mechanism for sliding up and down. The sliding plate is fixedly connected to the pulling plate by a locking screw, and two symmetrically arranged waist-shaped grooves are provided on the sliding plate. The lower part of the locking part is provided with a sliding guide pin extending to the outside of the movable plate and sliding inside the corresponding waist-shaped groove.

[0017] Preferably, a C-shaped plate is fixedly installed on the upper part of the pull plate, and the two vertical sections of the C-shaped plate are connected to the clamping plates at corresponding positions for sliding up and down. A push block is connected to the vertical section on the front side of the C-shaped plate for sliding up and down through a fixing screw, and the push block is located on the upper part of the clamping plate.

[0018] The beneficial effects of the present invention are as follows: 1. The present invention adopts the clamping plate and the floating clamping plate to rest against the side surface of the prefabricated solid square pile together, so that the pushing spring can push the floating clamping plate to flexibly adapt to the uneven side surface of the prefabricated solid square pile, so that the clamping plate and the floating clamping plate can fit tightly with the prefabricated solid square pile, ensuring the actual contact area between the clamping plate and the side surface of the prefabricated solid square pile, thereby preventing the prefabricated solid square pile from sliding during transportation.

[0019] 2. The present invention adopts a limiting component to push and lock the position of the floating splint during transportation, so that floating splints with different movement amounts can all be tightly against the prefabricated solid square piles, and by pushing the floating splint, the clamping force of the floating splint on the prefabricated solid square piles can be increased, further ensuring the clamping stability of the prefabricated solid square piles.

[0020] 3. The present invention adopts an L-shaped member whose horizontal section can automatically extend to the lower part of the precast solid square pile when it is hoisted, so that the horizontal section of the L-shaped member can protect the precast solid square pile and prevent the precast solid square pile from falling out of the clamp, eliminating the threat to construction safety. When the precast solid square pile falls onto the L-shaped member, the position of the L-shaped member can be locked by the position locking assembly, thereby further preventing the precast solid square pile from falling out of the clamp.

[0021] Fourth, the present invention adopts a position locking assembly that can pull the clamping plate when the prefabricated solid square pile falls onto the L-shaped member, so that the limiting assembly increases the clamping force of the floating clamping plate on the prefabricated solid square pile, thereby further increasing the stability of the prefabricated solid square pile on the L-shaped member and further preventing the prefabricated solid square pile from falling off from the clamp. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The present invention will be further described below with reference to the accompanying drawings and examples.

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0024] Figure 2 It is a structural schematic diagram of the left side of the present invention after removing the pulling mechanism.

[0025] Figure 3 It is a cross-sectional view of the rectangular tube, synchronous frame and clamping mechanism in the present invention.

[0026] Figure 4 It is a partial cross-sectional view of the limiting component in the present invention.

[0027] Figure 5 It is a schematic structural diagram of the anti-falling mechanism of the present invention, after removing the U-shaped plate and the pushing block, and the rectangular tube and the synchronous frame.

[0028] Figure 6 It is a partial cross-sectional view of the movable plate, fixed column, locking member, locking plug-in, unlocking plate, sliding plate, waist-shaped groove and sliding guide pin in the present invention.

[0029] Figure 7 It is a partial cross-sectional view of the synchronization frame, locking member, rectangular hole, locking plug-in, linkage support rod, unlocking plate and V-shaped opening groove in the present invention.

[0030] Figure 8 It is a structural schematic diagram of the locking plug-in, linkage support rod, unlocking plate and V-shaped opening groove in the present invention.

[0031] Figure 9 It is a structural schematic diagram of the clamping plate, the U-shaped plate, the pushing block, the pulling plate and the triggering slider in the present invention.

[0032] Figure: 1, pulling mechanism; 2, rectangular tube; 3, synchronous frame; 4, clamping mechanism; 5, anti-drop mechanism; 41, clamping plate; 42, floating clamping plate; 43, limit assembly; 51, moving assembly; 52, L-shaped member; 53, position locking assembly; 54, U-shaped plate; 431, T-shaped plate; 432, locking portion; 511, oblique guide groove; 512, moving plate; 513, fixed column; 521 , positioning hole; 531, trigger slider; 532, locking piece; 533, rectangular hole; 534, trigger part; 535, locking plug-in; 536, linkage support rod; 537, unlocking plate; 538, V-shaped opening groove; 541, pushing block; 4321, toothed piece; 4322, wedge block; 5341, pull plate; 5342, sliding plate; 5343, waist-shaped groove; 5344, sliding guide pin. DETAILED DESCRIPTION

[0033] The following embodiments of the present invention are described in detail. The embodiments described below are exemplary and are only used to explain the present invention, and are not to be construed as limiting the present invention. Where specific techniques or conditions are not specified in the embodiments, the techniques or conditions described in the literature in the art or in the product specifications shall be followed.

[0034] See Figure 1 and Figure 2 A concrete product stacking clamp includes a pulling mechanism 1. Two rectangular tubes 2 are symmetrically arranged on the pulling mechanism 1 and slide left and right. The pulling mechanism 1 drives the two rectangular tubes 2 to move synchronously in opposite directions. A synchronization frame 3 is fixedly installed on the side of the lower part of the rectangular tube 2 away from the middle of the pulling mechanism 1. The synchronization frame 3 and the rectangular tube 2 are jointly provided with a clamping mechanism 4 for clamping concrete products. The lower part of the synchronization frame 3 is provided with an anti-falling mechanism 5 for preventing concrete from falling.

[0035] When the prefabricated solid square piles need to be stacked and transported, the upper part of the pulling mechanism 1 is placed on the lower part of the lifting equipment, and then the two rectangular tubes 2 are moved to the upper part of the prefabricated solid square pile by moving the pulling mechanism 1. Then, the pulling mechanism 1 is moved downward to drive the two synchronous frames 3 to the left and right sides of the prefabricated solid square pile respectively through the rectangular tubes 2. Then, the pulling mechanism 1 is lifted so that the clamping mechanism 4 remains in position under the action of gravity, so that the pulling mechanism 1 drives the two rectangular tubes 2 to approach each other synchronously.

[0036] It should be noted that the pulling mechanism 1 in this embodiment is composed of a square tube, two sliding plates, two scissor arms, and two booms in the prior art. The upper ends of the two booms are hinged to each other, the middle parts of the two scissor arms are hinged to each other, the lower ends of the booms are hinged to the upper ends of the scissor arms at the corresponding positions, the two sliding plates are arranged inside the square tube for sliding left and right, and the two sliding plates are arranged front and back, the lower ends of the two scissor arms are respectively hinged to the sliding plates at the corresponding positions, and the rectangular tube 2 is fixedly connected to the sliding plates at the corresponding positions by bolts.

[0037] When the lifting equipment moves up, it drives the two booms to move upward relative to the square tube, so that the lower ends of the two booms approach each other under the action of gravity. The two booms drive the lower parts of the two scissor arms to approach each other as well, so that the two scissor arms drive the two rectangular tubes 2 to approach each other synchronously through the two sliding plates.

[0038] The rectangular tube 2 drives the clamping mechanism 4 to clamp on the prefabricated solid square pile through the synchronous frame 3, and then continues to lift the pulling mechanism 1, so that the pulling mechanism 1 drives the prefabricated solid square pile to move upward synchronously through the clamping mechanism 4. At this time, the anti-falling mechanism 5 gradually moves under the action of gravity, thereby protecting the bottom of the prefabricated solid square pile.

[0039] See Figure 1 、 Figure 2 and Figure 3 The clamping mechanism 4 includes a clamping plate 41 that is slidably arranged on the side of the synchronous frame 3 close to the middle of the pulling mechanism 1. A number of floating clamps 42 are arranged on the clamping plate 41 at equal intervals in the front-to-back direction. The floating clamp 42 slides along the thickness direction of the clamping plate 41. A number of anti-slip protrusions are provided on the side of the floating clamp 42 close to the middle of the pulling mechanism 1. A push spring is provided between the floating clamp 42 and the clamping plate 41.

[0040] In the initial state, the push spring pushes the floating splint 42 by its own elastic force, so that the side of the floating splint 42 equipped with the anti-slip protrusion extends toward the outside of the clamping plate 41 in the direction close to the middle of the pulling mechanism 1. When the pulling mechanism 1 drives the two synchronous frames 3 to approach each other synchronously, the synchronous frame 3 drives the clamping plate 41 thereon to move synchronously, and the clamping plate 41 drives the floating splint 42 thereon to move synchronously, so that the floating splint 42 drives the anti-slip protrusion thereon to rest against the side of the prefabricated solid square pile before the clamping plate 41.

[0041] Then continue to move the clamping plate 41 until it rests against the side of the precast solid square pile, so that the precast solid square pile compresses the push spring at the corresponding position by pushing the floating clamping plate 42, so that the push spring pushes the floating clamping plate 42 to fit tightly against the side of the precast solid square pile through its own elastic force, thereby flexibly adjusting the uneven side of the precast solid square pile.

[0042] Continue reading Figure 1、 Figure 2 and Figure 3 The clamping plate 41 and the rectangular tube 2 are jointly provided with a limiting component 43 for locking the floating clamping plate 42. The limiting component 43 includes a T-shaped plate 431 fixedly installed on the lower part of the rectangular tube 2 close to the middle side of the pulling mechanism 1. A No. 1 tension spring is provided between the rectangular tube 2 and the clamping plate 41. The lower part of the horizontal section of the T-shaped plate 431 pushes the floating clamping plate 42 toward the direction close to the middle side of the pulling mechanism 1 through the locking part 432.

[0043] See Figure 3 and Figure 4 The locking portion 432 includes several groups of locking teeth 4321 that are evenly spaced along the front-to-back direction at the lower part of the horizontal section of the T-shaped plate 431 and correspond one to one with the floating splint 42. Each group is composed of two locking teeth 4321 that are symmetrically arranged on the front and rear sides of the floating splint 42 at corresponding positions. Wedge blocks 4322 are provided at the positions corresponding to the locking teeth 4321 on the front and rear sides of the floating splint 42.

[0044] Continue reading Figure 3 and Figure 4 The inclined surface of the wedge block 4322 is located at the lower part thereof and faces in a direction away from the middle part of the pulling mechanism 1. The latching teeth on the latching tooth part 4321 are located at the lower part of the corresponding wedge block 4322, and the inclined surface of the latching tooth part 4321 at the corresponding position is arranged opposite to the inclined surface of the wedge block 4322.

[0045] In the initial state, the No. 1 tension spring pulls the clamping plate 41 upward by its own elastic force, so that the clamping plate 41 drives the wedge block 4322 thereon to move completely to the upper part of the tooth part 4321 through the floating clamping plate 42, so that when the prefabricated solid square pile drives the wedge block 4322 thereon to move by pushing the floating clamping plate 42, the tooth part 4321 will not block the position of the wedge block 4322.

[0046] When the clamping plate 41 and the floating clamping plate 42 are both pressed against the prefabricated solid square pile, the pulling mechanism 1 is continued to be lifted, so that the pulling mechanism 1 drives the rectangular tube 2 to move upward relative to the clamping plate 41, and at the same time stretches the No. 1 tension spring, so that the rectangular tube 2 drives all the tooth parts 4321 to move upward relative to the wedge block 4322 through the T-shaped plate 431. At this time, the friction force of the prefabricated solid square pile on the clamping plate 41 makes the clamping plate 41 maintain a constant height, and then the clamping plate 41 drives the wedge block 4322 to remain constant in height through the floating clamping plate 42.

[0047] Then the latching tooth 4321 corresponds to the inclined surface of the wedge block 4322 and rests on the inclined surface of the wedge block 4322. The latching tooth 4321 pushes the wedge block 4322 toward the middle of the pulling mechanism 1. The wedge block 4322 drives the floating splint 42 to further press against the prefabricated solid square pile to ensure the clamping stability.

[0048] When the floating clamping plate 42 is pressed against the prefabricated solid square pile, the pulling mechanism 1 is further lifted, so that the pulling mechanism 1 drives the prefabricated solid square pile to move upward through the clamping plate 41 and the floating clamping plate 42 .

[0049] See Figure 1 、 Figure 2 、 Figure 3 、 Figure 5 and Figure 6 The anti-falling mechanism 5 includes an L-shaped member 52 arranged at the lower part of the synchronization frame 3 through a moving component 51. The horizontal section of the L-shaped member 52 is located between the two clamping plates 41 on the side close to the middle of the pulling mechanism 1. The moving component 51 includes two inclined guide grooves 511 arranged vertically on the synchronization frame 3 and penetrating the synchronization frame 3 from front to back. The inclined guide grooves 511 gradually incline from top to bottom toward the side close to the middle of the pulling mechanism 1. A moving plate 512 is provided inside the synchronization frame 3. Two fixed columns 513 arranged vertically are fixedly installed on the upper part of the moving plate 512. The fixed columns 513 slide in the inclined guide grooves 511 at corresponding positions.

[0050] See Figure 2 and Figure 5 The side of the movable plate 512 away from the middle of the pulling mechanism 1 is slidably connected to the vertical section of the L-shaped member 52. Two bolts arranged up and down are provided on the vertical section of the L-shaped member 52. A number of positioning holes 521 are opened on the movable plate 512 at equal intervals in the vertical direction. The L-shaped member 52 is locked into a whole with the movable plate 512 by bolts.

[0051] In the initial state, the L-shaped members 52 on both sides are located on both sides of the prefabricated solid square pile, and the fixed column 513 is located in the upper part of the corresponding inclined guide groove 511. When the synchronous frame 3 drives the prefabricated solid square pile to move upward through the clamping plate 41 and the floating clamping plate 42, the L-shaped member 52 pulls the movable plate 512 to maintain a constant height under the action of gravity, thereby causing the synchronous frame 3 to move upward relative to the movable plate 512, and then causing the fixed column 513 to move downward along the trajectory of the inclined guide groove 511.

[0052] While the fixed column 513 moves downward along the trajectory of the oblique guide groove 511, the fixed column 513 drives the movable plate 512 to move toward the middle of the pulling mechanism 1 relative to the synchronous frame 3 at the corresponding position, and the movable plate 512 drives the L-shaped member 52 to move synchronously. When the fixed column 513 moves to the bottom of the oblique guide groove 511, the horizontal section of the L-shaped member 52 moves to the bottom of the prefabricated solid square pile, and the horizontal section of the L-shaped member 52 does not contact the prefabricated solid square pile, so that the L-shaped member 52 protects the prefabricated solid square pile through the horizontal section above it.

[0053] By pre-inserting bolts into positioning holes 521 at different positions, the distance between the horizontal section of the L-shaped member 52 and the movable plate 512 is adjusted, so that the L-shaped member 52 can protect prefabricated solid square piles of different heights.

[0054] See Figure 1 、 Figure 3 、 Figure 5 and Figure 6 The anti-falling mechanism 5 also includes a position locking assembly 53 for locking the position of the L-shaped member 52. The position locking assembly 53 includes a trigger slider 531 that is sliding up and down on the horizontal section of the L-shaped member 52. A No. 2 tension spring is provided between the trigger slider 531 and the L-shaped member 52. Two L-shaped locking members 532 that are symmetrically arranged front and back are provided on the movable plate 512 for sliding back and forth. A rectangular hole 533 is provided at the lower part of the synchronization frame 3 for inserting the horizontal section of the locking member 532.

[0055] In the initial state, the No. 2 tension spring pulls the trigger slider 531 upward by its own elastic force, so that the upper side of the trigger slider 531 is located at the upper part of the horizontal section of the L-shaped part 52. When the prefabricated solid square pile slips off the clamping plate 41 and the floating clamping plate 42 and falls to the upper part of the horizontal section of the L-shaped part 52, the prefabricated solid square pile presses the trigger slider 531 downward, causing the trigger slider 531 to move downward to the inside of the horizontal section of the L-shaped part 52.

[0056] See Figure 1 、 Figure 2 、 Figure 3 、 Figure 5 and Figure 6 The position locking assembly 53 also includes a triggering portion 534 for driving the locking member 532 to move. The triggering portion 534 includes a pulling plate 5341 fixedly installed on the upper middle side of the trigger slider 531. The movable plate 512 is close to the lower part of the middle side of the pulling mechanism 1 and is provided with a sliding plate 5342 for sliding up and down. The sliding plate 5342 is fixedly connected to the pulling plate 5341 by a locking screw. The sliding plate 5342 is provided with two symmetrically arranged waist-shaped grooves 5343. The lower part of the locking member 532 is provided with a sliding guide pin 5344 extending to the outside of the movable plate 512 and sliding inside the corresponding waist-shaped groove 5343.

[0057] In the initial state, the trigger slider 531 pushes the sliding plate 5342 upward through the pull plate 5341, so that the sliding plate 5342 pushes the sliding guide pin 5344 toward the middle of the movable plate 512 through the waist-shaped groove 5343 thereon, and the sliding guide pin 5344 drives the horizontal section of the locking piece 532 at the corresponding position to disengage from the inside of the corresponding rectangular hole 533.

[0058] When the prefabricated solid square pile presses the trigger slider 531 downward, the trigger slider 531 drives the horizontal section of the locking piece 532 to be inserted into the corresponding rectangular hole 533 through the sliding plate 5342, so that the rectangular hole 533 limits the movable plate 512 through the locking piece 532, thereby locking the movable plate 512 and the synchronous frame 3 into a whole, and then the movable plate 512 drives the L-shaped piece 52 and the synchronous frame 3 to be locked into a whole, thereby preventing the prefabricated solid square pile from sliding onto the L-shaped piece 52, and the prefabricated solid square pile from falling due to the movement of the position of the L-shaped piece 52.

[0059] See Figure 1 、 Figure 5 、 Figure 6 、 Figure 7 and Figure 8 The position locking assembly 53 also includes two symmetrically arranged locking plugs 535 that are slidably arranged on the horizontal section of the locking member 532. The locking plug 535 has a right-angled trapezoidal structure. A linkage support rod 536 is fixedly installed inside the locking plug 535. An unlocking plate 537 is slidably provided inside the horizontal section of the locking member 532. A V-shaped opening groove 538 is provided on the unlocking plate 537. Grooves for the locking plug 535 to extend into are provided on the upper and lower side walls of the rectangular hole 533. A coil spring is provided between the locking plugs 535 at the two corresponding positions.

[0060] In the initial state, the coil spring pushes the two locking plugs 535 away from each other through its own elastic force, so that the inclined portion on the locking plug 535 extends to the outside of the horizontal section of the locking piece 532. When the horizontal section of the locking piece 532 moves into the rectangular hole 533, the locking piece 532 drives the inclined portion of the locking plug 535 to contact the edge position of the rectangular hole 533, so that the rectangular hole 533 pushes the inclined portions of the two locking plugs 535 into the interior of the locking piece 532 and compresses the coil spring.

[0061] When the horizontal section of the locking piece 532 is completely moved into the interior of the rectangular hole 533, the locking piece 532 drives the locking plug-in 535 to move to the groove position on the rectangular hole 533, so that the coil spring pushes the two locking plug-ins 535 to the initial position through its own elastic force, so that the locking plug-in 535 can abut against the side wall of the groove on the rectangular hole 533 through the vertical section thereon, thereby preventing the horizontal section of the locking piece 532 from accidentally moving out of the rectangular hole 533 without human operation, and further ensuring the stability of the L-shaped piece 52 in supporting and protecting the slipping prefabricated solid square pile.

[0062] See Figure 2 and Figure 9A C-shaped plate 54 is fixedly installed on the upper part of the pull plate 5341. The two vertical sections of the C-shaped plate 54 are connected to the clamping plate 41 at the corresponding position for sliding up and down. A push block 541 is connected to the vertical section on the front side of the C-shaped plate 54 for sliding up and down through a fixing screw. The push block 541 is located on the upper part of the clamping plate 41.

[0063] When the prefabricated solid square pile slips off on the L-shaped part 52, the pulling plate 5341 drives the pushing block 541 to move downward through the L-shaped plate 54, and the pushing block 541 drives the clamping plate 41 to move downward synchronously. The principle is the same as above, so that the toothed part 4321 drives the floating splint 42 to move again toward the middle of the pulling mechanism 1 by pushing the wedge block 4322, thereby increasing the clamping force of the floating splint 42 on the prefabricated solid square pile, and further increasing the stability of the prefabricated solid square pile when it slips off on the L-shaped part 52.

[0064] When the prefabricated solid square piles without slipping are moved to the stacking position, the pulling mechanism 1 drives the lower side of the L-shaped member 52 to contact the ground or the upper side of other prefabricated solid square piles by moving downward, so that the L-shaped member 52 moves to the positions on both sides of the prefabricated solid square piles under the push of the reaction force of the ground or other prefabricated solid square piles, and then the pulling mechanism 1 places the prefabricated solid square piles on the ground or on the upper side of other prefabricated solid square piles through the clamping plate 41 and the floating clamping plate 42, and then the pulling mechanism 1 moves downward relative to the rectangular tube 2, so that the clamping plate 41 and the floating clamping plate 42 no longer clamp the prefabricated solid square piles, thereby completing the transportation and stacking of the prefabricated solid square piles.

[0065] It should be noted that when the slipped prefabricated solid square pile presses the upper side of the trigger slider 531 into the horizontal section of the L-shaped member 52 , the lower side of the trigger slider 531 extends downward to the lower side of the horizontal section of the L-shaped member 52 .

[0066] When the prefabricated solid square pile that has slipped off the L-shaped part 52 moves to the stacking position, the pulling mechanism 1 drives the lower side of the trigger slider 531 to rest against the ground or the upper side of other prefabricated solid square piles. Then the operator manually presses the unlocking plate 537 into the inside of the locking part 532. The unlocking plate 537 simultaneously pushes the two corresponding linkage rods 536 through the V-shaped opening groove 538, so that the linkage rods 536 drive the locking plug-ins 535 at the corresponding positions to retract into the inside of the locking part 532.

[0067] Then, the pulling mechanism 1 continues to move downward, so that the pulling mechanism 1 drives the L-shaped member 52 to move downward relative to the trigger slider 531, thereby causing the L-shaped member 52, the synchronous frame 3, and the movable plate 512 to move downward synchronously, and the movable plate 512 drives the sliding guide pin 5344 downward along the waist-shaped groove 5343, so that the waist-shaped groove 5343 drives the horizontal section of the locking member 532 to withdraw from the inside of the rectangular hole 533 by pushing the sliding guide pin 5344. Then, the operator lowers the synchronous frame 3 while manually pulling the L-shaped member 52 away from the middle of the pulling mechanism 1, thereby causing the prefabricated solid square pile to fall to the stacking position.

[0068] It should be noted that rolling rollers are rotatably provided on both the upper and lower sides of the trigger slider 531, thereby reducing the friction between the trigger slider 531 and the ground and the prefabricated solid square piles.

[0069] When transporting and stacking prefabricated solid square piles, the present invention also includes the following steps: first, the upper part of the pulling mechanism 1 is placed on the lower part of the lifting equipment, and then the two clamping plates 41 are driven to move to the left and right sides of the prefabricated solid square piles respectively by moving the pulling mechanism 1, and then the pulling mechanism 1 is lifted to drive the two clamping plates 41 to clamp on the prefabricated solid square piles.

[0070] In the second step, the pushing spring pushes the floating splint 42 to fit tightly against the side of the prefabricated solid square pile through its own elastic force, and continues to lift the pulling mechanism 1 so that the wedge block 4322 drives the floating splint 42 to further press against the prefabricated solid square pile to ensure the clamping stability, and continues to lift the pulling mechanism 1 so that the pulling mechanism 1 drives the prefabricated solid square pile to move upward through the clamping plate 41 and the floating splint 42.

[0071] In the third step, the L-shaped member 52 pulls the movable plate 512 under the action of gravity to maintain a constant height, so that the fixed column 513 moves downward along the trajectory of the inclined guide groove 511, and the fixed column 513 drives the L-shaped member 52 to move toward the middle of the pulling mechanism 1, so that the horizontal section of the L-shaped member 52 moves to the bottom of the prefabricated solid square pile, so that the L-shaped member 52 protects the prefabricated solid square pile through the horizontal section above it.

[0072] In the fourth step, when the prefabricated solid square pile slides to the upper part of the horizontal section of the L-shaped member 52, the prefabricated solid square pile presses the trigger slider 531 downward, so that the horizontal section of the locking member 532 is inserted into the corresponding rectangular hole 533. At the same time, the locking plug-in 535 abuts against the side wall of the groove on the rectangular hole 533 through the vertical section thereon, so that the movable plate 512 drives the L-shaped member 52 and the synchronous frame 3 to be locked into a whole.

[0073] In the fifth step, the pulling plate 5341 pushes the clamping plate 41 to move downward synchronously through the pushing block 541, so that the toothed part 4321 drives the floating splint 42 to move again toward the middle of the pulling mechanism 1 by pushing the wedge block 4322, thereby increasing the clamping force of the floating splint 42 on the prefabricated solid square pile, and further increasing the stability of the prefabricated solid square pile when it slips on the L-shaped part 52.

[0074] In the sixth step, the precast solid square piles that have not slipped are moved to the stacking position. The L-shaped members 52 are pushed to the positions on both sides of the precast solid square piles by the reaction force of the ground or other precast solid square piles. Then, the precast solid square piles are moved down to the stacking position, so that the clamping plates 41 and the floating clamping plates 42 no longer clamp the precast solid square piles.

[0075] In the seventh step, the prefabricated solid square pile that slides off the L-shaped part 52 is moved to the stacking position, and the pulling mechanism 1 drives the lower side of the trigger slider 531 to rest against the stacking position. Then the operator manually presses the unlocking plate 537 into the inside of the locking part 532, so that the linkage support rod 536 drives the locking plug-in 535 at the corresponding position to retract into the inside of the locking part 532.

[0076] In the eighth step, the pulling mechanism 1 is further moved downward so that the horizontal section of the locking member 532 exits from the interior of the rectangular hole 533. The operator then lowers the synchronization frame 3 while manually pulling the L-shaped member 52 away from the middle of the pulling mechanism 1, thereby causing the prefabricated solid square pile to fall to the stacking position.

[0077] Although the embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and are not to be construed as limitations on the present invention. A person skilled in the art may make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention, which are still covered by the scope of protection of the present invention.

Claims

1. A concrete product stacking clamp, comprising a pulling mechanism, wherein two rectangular tubes arranged symmetrically on the pulling mechanism are slidably arranged on the left and right sides, and the pulling mechanism drives the two rectangular tubes to move synchronously in opposite directions, characterized in that: A synchronous frame is fixedly installed on one side of the lower part of the rectangular tube away from the middle of the pulling mechanism. The synchronous frame and the rectangular tube are jointly provided with a clamping mechanism for clamping the concrete product. The lower part of the synchronous frame is provided with an anti-falling mechanism for preventing the concrete from falling. The clamping mechanism includes a clamping plate that is slidably arranged on the side of the synchronous frame near the middle of the pulling mechanism, a plurality of floating clamps are arranged on the clamping plate at equal intervals in the front-to-back direction, the floating clamp slides along the thickness direction of the clamping plate, a plurality of anti-slip protrusions are arranged on the side of the floating clamp near the middle of the pulling mechanism, a push spring is arranged between the floating clamp and the clamping plate, and a limit assembly for locking the floating clamp is provided on the clamping plate and the rectangular tube; The anti-falling mechanism includes an L-shaped member arranged at the lower part of the synchronous frame through a movable component. The horizontal section of the L-shaped member is located between two clamping plates on one side close to the middle of the pulling mechanism. The anti-falling mechanism also includes a position locking component for locking the position of the L-shaped member. The position of the L-shaped member is locked by the position locking component to prevent the prefabricated solid square piles from falling off.

2. A concrete product stacking clamp according to claim 1, characterized in that: The limiting assembly includes a T-shaped plate fixedly installed on the lower part of the rectangular tube near the middle side of the pulling mechanism. A tension spring No. 1 is arranged between the rectangular tube and the clamping plate. The lower part of the horizontal section of the T-shaped plate pushes the floating clamp toward the middle side of the pulling mechanism through the locking part.

3. The concrete product stacking clamp according to claim 2, characterized in that: The locking portion includes several groups of locking teeth which are arranged at equal intervals in the front-to-back direction at the lower part of the horizontal section of the T-shaped plate and correspond one to one with the floating splint. Each group is composed of two locking teeth which are symmetrically arranged at the front and rear sides of the floating splint at corresponding positions. Wedge blocks are provided at the positions corresponding to the locking teeth on the front and rear sides of the floating splint.

4. A concrete product stacking clamp according to claim 3, characterized in that: The inclined surface of the wedge block is located at the lower part thereof and faces the direction away from the middle part of the pulling mechanism. The teeth on the toothed part are located at the lower part of the corresponding wedge block, and the inclined surface of the toothed part at the corresponding position is arranged opposite to the inclined surface of the wedge block.

5. The concrete product stacking clamp according to claim 1, characterized in that: The moving assembly includes two oblique guide grooves arranged vertically on the synchronization frame and penetrating the synchronization frame front to back. The oblique guide grooves gradually incline from top to bottom toward the side close to the middle of the pulling mechanism. A moving plate is provided inside the synchronization frame. Two fixed columns arranged vertically are fixedly installed on the upper part of the moving plate. The fixed columns slide in the oblique guide grooves at corresponding positions.

6. The concrete product stacking clamp according to claim 5, characterized in that: The side of the movable plate away from the middle of the pulling mechanism is slidably connected to the vertical section of the L-shaped part. Two bolts arranged up and down are provided on the vertical section of the L-shaped part. A number of positioning holes are opened on the movable plate at equal intervals in the vertical direction. The L-shaped part is locked into a whole with the movable plate by bolts.

7. The concrete product stacking clamp according to claim 5, characterized in that: The position locking assembly includes a trigger slider that slides up and down on the horizontal section of the L-shaped member, a No. 2 tension spring is provided between the trigger slider and the L-shaped member, and two L-shaped locking members that are symmetrically arranged front and back and slide back and forth on the movable plate. A rectangular hole is provided at the lower part of the synchronization frame for inserting the horizontal section of the locking member. The position locking assembly also includes a trigger part for driving the locking member to move.

8. The concrete product stacking clamp according to claim 7, characterized in that: The position locking assembly also includes two symmetrically arranged locking plugs that are slid up and down on the horizontal section of the locking piece. The locking plugs are in a right-angled trapezoidal structure. A linkage support rod is fixedly installed inside the locking plug. An unlocking plate is slid back and forth inside the horizontal section of the locking piece. A V-shaped opening groove is provided on the unlocking plate. Grooves for the locking plugs to extend into are provided on the upper and lower side walls of the rectangular hole. A coil spring is provided between the locking plugs in the two corresponding positions.

9. The concrete product stacking clamp according to claim 7, characterized in that: The trigger part includes a pulling plate fixedly installed on the upper middle side of the trigger slider, and a sliding plate is provided on the lower part of the movable plate close to the middle side of the pulling mechanism for sliding up and down. The sliding plate is fixedly connected to the pulling plate by a locking screw, and two symmetrically arranged waist-shaped grooves are provided on the sliding plate. The lower part of the locking part is provided with a sliding guide pin extending to the outside of the movable plate and sliding inside the corresponding waist-shaped groove.

10. The concrete product stacking clamp according to claim 9, characterized in that: A C-shaped plate is fixedly installed on the upper part of the pulling plate. The two vertical sections of the C-shaped plate are slidably connected to the clamping plates at corresponding positions. A push block is slidably connected to the vertical section on the front side of the C-shaped plate through a fixing screw. The push block is located on the upper part of the clamping plate.

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