Folding ejector

Abstract

The present invention relates to the technical field of forklifts, and discloses a folding pusher, comprising two fixed plates, the side ends of the two fixed plates are commonly fixedly connected to two cross bars, the same side outer walls of the two cross bars are commonly fixedly connected to a connecting plate, the inner walls of the two connecting plates are commonly fixedly connected to a fixed rod, the rod wall of the fixed rod is movably sleeved with two moving cylinders, and the outer wall of the moving cylinder is fixedly connected to an L-shaped moving plate. The folding pusher has the function of automatically adjusting the distance between forks, and also has the function of making the L-shaped fork plates of the forklift have the function of being folded separately, thereby shortening the steps and time of taking the forks out of the pallet, which can effectively improve the convenience of using the folding pusher, and improve the efficiency of forklifts in handling goods. In addition, the forklift pusher also has the function of pushing goods to prevent the goods from being suspended in the air and causing collapse, and at the same time improves the safety of cargo transportation.

Description

Technical Field

[0001] The invention relates to the technical field of forklifts, in particular to a folding ejector. Background Art

[0002] With the acceleration of trade between the East and the West and the rapid development of the logistics industry, the role of forklifts in transportation has become increasingly important, and they are the main force in material handling equipment. A forklift is an industrial handling vehicle, which refers to a handling vehicle that loads, unloads, stacks and transports palletized goods over short distances, and is often used for the transportation of large objects in storage. It is widely used in ports, stations, airports, freight yards, factory workshops, warehouses, circulation centers and distribution centers. Loading, unloading and handling of palletized goods in cabins, carriages and containers is an indispensable equipment in pallet transportation and container transportation. The ejector of a forklift is an important part of the forklift. In order to overcome the problems that the fork tines of the existing forklift ejector cannot be folded, the rotation radius of the forklift is too large during operation, and the operation is limited in a small space, there is currently a folding ejector for a forklift, such as the Chinese patent authorization number CN215711563U, which discloses a foldable ejector.

[0003] The existing forklift folding ejector is too complicated and inconvenient to operate when taking it out from the pallet. First, the cargo pallet needs to be pushed completely out of the range of the forks, then the ejection component needs to be retracted, and finally the forks need to be folded to reduce the rotation radius of the forklift. This operation is time-consuming, which not only affects the convenience of using the folding ejector, but also affects the efficiency of the forklift in handling goods. Summary of the invention

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the present invention provides a foldable pusher having the function of automatically adjusting the spacing between forks, and also having the function of enabling the L-shaped fork plate of a forklift to be folded separately, thereby shortening the steps and time for taking the forks out of the pallet, and can effectively improve the convenience of using the foldable pusher, as well as the efficiency of forklifts in handling goods. The forklift pusher also has the function of pushing goods to prevent the goods from being suspended in the air and causing collapse, while improving the safety of cargo transportation, and solving the problem that the current use process of the foldable pusher of a forklift is cumbersome and time-consuming, which not only affects the convenience of using the foldable pusher, but also affects the efficiency of forklifts in handling goods.

[0006] (II) Technical solution

[0007] In order to realize the function of automatically adjusting the spacing between forks of the folding and ejecting device, and also to enable the L-shaped fork plate of the forklift to be folded separately, thereby shortening the steps and time for taking the forks out of the pallet, effectively improving the convenience of using the folding and ejecting device, and improving the efficiency of forklift in handling goods, the present invention provides the following technical solutions: the folding and ejecting device comprises two fixed plates, the side ends of the two fixed plates are commonly fixedly connected to two cross bars, the outer walls of the same sides of the two cross bars are commonly fixedly connected to a connecting plate, the inner walls of the two connecting plates are commonly fixedly connected to a fixed rod, the rod wall of the fixed rod is movably sleeved with two moving cylinders, the outer wall of the moving cylinder is fixedly connected to an L-shaped moving plate, the bottom end of the L-shaped moving plate is provided with a rectangular through hole, and the hole wall of the rectangular through hole is movably connected to an insert block, the outer wall of the insert block is fixedly connected to a fork, the outer walls of the two L-shaped moving plates are both fixedly connected to a limiting mechanism, the outer wall of the connecting plate is fixedly connected to a spacing adjustment mechanism, and the inner walls of the two fixed plates are commonly fixedly connected to a ejection mechanism.

[0008] Preferably, the ejection mechanism includes a mounting plate fixedly connected to the inner walls of the two fixed plates, the outer wall of the mounting plate is fixedly connected to a hydraulic rod, the movable end of the hydraulic rod is fixedly connected to a push plate, the outer wall of the push plate is fixedly connected to a rubber cover, the outer wall of the rubber cover is fixedly connected to a contact plate, the outer wall of the rubber cover is fixedly connected to a hose, and the output end of the hose passes through the outer wall of the L-shaped movable plate.

[0009] Preferably, the limiting mechanism includes an air cylinder fixedly connected to the outer wall of the L-shaped movable plate, the outer wall of the bottom end of the air cylinder is fixedly connected to the output end of the hose, the inner wall of the air cylinder is movably connected with an annular piston assembly, the inner wall of the annular piston assembly is fixedly connected with an insert cylinder, the upper surface of the insert block is provided with a limiting through hole matching the insert cylinder, the outer wall of the insert cylinder is movably sleeved with a sliding sealing assembly, the outer wall of the sliding sealing assembly is fixedly connected to the lower surface of the air cylinder by bolts, the top end of the air cylinder is fixedly connected with an exhaust one-way valve and a solenoid valve, the top end of the insert cylinder is fixedly connected with a reset spring, the outer wall of the insert block is fixedly connected with a steel wire rope, the outer wall of the steel wire rope is movably sleeved with a fixed pulley, and the top end of the fixed pulley is fixedly connected to the outer wall of the fixed plate.

[0010] Preferably, the spacing adjustment mechanism includes an outer cover fixedly connected to the outer wall of the connecting plate, a motor is fixedly connected to the interior of the outer cover, a first bevel gear is fixedly connected to the output end of the motor, circular holes are opened on the outer walls of the two connecting plates, and the hole walls of the circular holes are connected to screws through rolling bearings, a fixing ring is fixedly connected to the opposite sides of the two screws, a nut is threadedly sleeved on the rod wall of the screw, and the outer wall of the nut is fixedly connected to the outer wall of the adjacent L-shaped movable plate, a second bevel gear is fixedly connected to the side wall of one of the screws, and the second bevel gear and the outer wall of the first bevel gear are vertically meshed with each other.

[0011] Preferably, a rubber sleeve is movably sleeved on the outer wall of the steel wire rope, a fixed tube is fixedly sleeved on the outer wall of the rubber sleeve, and a pull ring is fixedly connected to the side of the steel wire rope away from the plug block.

[0012] Preferably, through holes are formed on the outer walls at the four corners of the push plate, and the hole walls of the through holes are movably connected to T-shaped rods, and the side walls of the T-shaped rods are fixedly connected to the outer walls of the contact plate.

[0013] Preferably, the threads of the two screws rotate in opposite directions, and the screws and nuts are both made of stainless steel.

[0014] (III) Beneficial effects

[0015] Compared with the prior art, the present invention provides a folding ejector, which has the following beneficial effects:

[0016] 1. The foldable pusher is provided with a push mechanism and a limit mechanism. When the forklift has a small moving space and the fork is inconvenient to take out from the insertion hole of the pallet, the push mechanism is first started to push the goods. The contact plate and the push plate can push the goods a little distance to the inside of the placement area to ensure the stability of the goods and avoid the collapse of the goods hanging in the air. At the same time, the rubber cover is squeezed to make the air in the rubber cover be transported to the air cylinder along the hose, and the limit mechanism is triggered to make the insertion cylinder of the limit mechanism move away from the insertion block, thereby realizing the separation of the fork and the L-shaped moving plate, and then the forklift is directly moved. After the forklift is moved out, the driver in the cab pulls the insertion block and the fork through the pull ring and the wire rope, and the goods are moved. The fork is folded down and taken out to realize the extraction of the fork from the pallet. Then the staff cooperates with the driver to continue pulling the wire rope and insert the fork's plug into the L-shaped movable plate again. At this time, there is no need to push all the goods away from the fork, nor to recycle the pushing component and then fold the fork, which saves time and effort. This mechanism enables the forklift's L-shaped fork plate to have the function of separate folding, shortens the steps and time of taking the fork out of the pallet, can effectively improve the convenience of using the folding pusher, and improves the efficiency of forklift in handling goods. The forklift pusher also has the function of pushing goods to prevent the collapse caused by the goods being suspended in the air, thereby improving the safety of cargo transportation.

[0017] 2. The folding pusher is provided with a spacing adjustment mechanism. When the distance between the forks cannot match the pallet insertion hole, the motor is started, and the motor rotates the screw through the first bevel gear and the second bevel gear. The two screws rotate through the fixed ring, and the two nuts move toward or away from each other because the screw threads have opposite directions. The nuts move the moving cylinder of the L-shaped moving plate on the fixed rod, thereby realizing convenient and automatic adjustment of the spacing between the forks. This mechanism enables the folding pusher to have the function of automatically adjusting the spacing between the forks, thereby improving the convenience of using the folding pusher. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic diagram of the structure of the folding ejector proposed by the present invention;

[0019] Figure 2 This is a structural schematic diagram of the spacing adjustment mechanism of the folding ejector proposed by the present invention;

[0020] Figure 3 This is a schematic structural diagram of part A of the folding ejector proposed by the present invention;

[0021] Figure 4 This is a schematic diagram of a partial structure of the folding ejector proposed in the present invention.

[0022] In the figure: 1 fixed plate, 2 cross bar, 3 connecting plate, 4 fixed rod, 5 moving cylinder, 6 L-shaped moving plate, 7 pushing mechanism, 71 mounting plate, 72 hydraulic rod, 73 pushing plate, 74 rubber cover, 75 contact plate, 76 hose, 8 limiting mechanism, 81 air cylinder, 82 annular piston assembly, 83 insert cylinder, 84 sliding seal assembly, 85 exhaust check valve, 86 solenoid valve, 87 return spring, 88 wire rope, 89 fixed pulley, 9 spacing adjustment mechanism, 91 outer cover, 92 motor, 93 first bevel gear, 94 screw, 95 fixing ring, 96 nut, 97 second bevel gear, 10 fork, 11 insert block, 12 rubber sleeve, 13 fixed cylinder, 14 pull ring, 15 T-shaped rod. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] See also Figure 1-4The folding ejector comprises two fixed plates 1, the side ends of the two fixed plates 1 are commonly fixedly connected to two cross bars 2, the outer walls of the same sides of the two cross bars 2 are commonly fixedly connected to a connecting plate 3, the inner walls of the two connecting plates 3 are commonly fixedly connected to a fixing rod 4, the rod wall of the fixing rod 4 is movably sleeved with two moving cylinders 5, the outer wall of the moving cylinder 5 is fixedly connected to an L-shaped moving plate 6, a rectangular through hole is opened at the bottom end of the L-shaped moving plate 6, and the hole wall of the rectangular through hole is movably connected to an insert block 11, the outer wall of the insert block 11 is fixedly connected to a fork 10, the L-shaped moving plate 6 and the fork 10 cooperate to realize the function of separately folding the L-shaped fork plate of the forklift, and shorten the steps and time of taking the fork 10 out of the pallet, which can effectively improve the convenience of using the folding ejector and improve the efficiency of forklift in handling goods.

[0025] The inner walls of the two fixed plates 1 are fixedly connected with a push-out mechanism 7, which includes a mounting plate 71 fixedly connected with the inner walls of the two fixed plates 1, a hydraulic rod 72 fixedly connected with the outer wall of the mounting plate 71, a push plate 73 fixedly connected with the movable end of the hydraulic rod 72, a rubber cover 74 fixedly connected with the outer wall of the push plate 73, a contact plate 75 fixedly connected with the outer wall of the rubber cover 74, through holes are formed on the outer wall at the four corners of the push plate 73, and a T-shaped rod 15 is movably connected to the hole wall of the through hole, and the side wall of the T-shaped rod 15 is fixedly connected with the outer wall of the contact plate 75, and the T The L-shaped rod 15 can ensure the structural stability between the push plate 73 and the contact plate 75, and prevent the contact plate 75 from swinging with the rubber cover 74. The outer wall of the rubber cover 74 is fixedly connected with a hose 76. The output end of the hose 76 passes through the outer wall of the L-shaped movable plate 6. The pushing mechanism 7 pushes the goods. The contact plate 75 and the push plate 73 can push the goods a certain distance to the inside of the placement area to ensure the stable placement of the goods and avoid the situation where the goods are suspended and collapsed. At the same time, the rubber cover 74 is squeezed so that the air in the rubber cover 74 is transported to the next step along the hose 76 and automatically triggers the next step.

[0026] The outer walls of the two L-shaped movable plates 6 are fixedly connected to the limiting mechanism 8, which includes an air cylinder 81 fixedly connected to the outer wall of the L-shaped movable plate 6, the outer wall of the bottom end of the air cylinder 81 is fixedly connected to the output end of the hose 76, the inner wall of the air cylinder 81 is movably connected with an annular piston assembly 82, the inner wall of the annular piston assembly 82 is fixedly connected with an insert cylinder 83, the upper surface of the insert block 11 is provided with a limiting through hole that matches the insert cylinder 83, the outer wall of the insert cylinder 83 is movably sleeved with a sliding sealing assembly 84, the outer wall of the sliding sealing assembly 84 is fixedly connected to the lower surface of the air cylinder 81 by bolts, the top end of the air cylinder 81 is fixedly connected with an exhaust one-way valve 85 and a solenoid valve 86, the top outer wall of the insert cylinder 83 is fixedly connected with a reset spring 87, the outer wall of the insert block 11 is fixedly connected with a wire rope 88, the outer wall of the wire rope 88 is movably sleeved with a rubber sleeve 12, and the rubber sleeve 12 The outer wall of the forklift 1 is fixedly sleeved with a fixed cylinder 13, and a pull ring 14 is fixedly connected to the side of the wire rope 88 away from the plug block 11. The fixed cylinder 13 is installed in the forklift cab, and it is convenient for the driver to control the fork 10 in the cab through the pull ring 14 and the wire rope 88. The outer wall of the wire rope 88 is movably sleeved with a fixed pulley 89, and the top of the fixed pulley 89 is fixedly connected to the outer wall of the fixed plate 1. The air is transported to the air cylinder 81 along the hose 76, and then the air pushes the annular piston assembly 82 in the air cylinder 81 to move upward, and the annular piston assembly 82 drives the insert cylinder 83 away from the plug block 11, thereby realizing the separation of the fork 10 from the L-shaped movable plate 6, and then directly moving the forklift. After the forklift is moved out, the fork 10 is pulled out of the pallet through the wire rope 88. At this time, there is no need to push all the goods away from the fork 10, nor is there any need to recover the pushing assembly and then fold the fork 10, which saves time and effort.

[0027] The outer wall of the connecting plate 3 is fixedly connected with a spacing adjustment mechanism 9, and the spacing adjustment mechanism 9 includes an outer cover 91 fixedly connected with the outer wall of the connecting plate 3, and the inner part of the outer cover 91 is fixedly connected with a motor 92, and the output end of the motor 92 is fixedly connected with a first bevel gear 93, and the outer walls of the two connecting plates 3 are both provided with round holes, and the hole walls of the round holes are connected with screws 94 through rolling bearings, and the opposite sides of the two screws 94 are commonly fixedly connected with a fixing ring 95, and the threads of the two screws 94 rotate in opposite directions, and the screws 94 and the nuts 96 are both made of stainless steel. The nuts 96 move toward or away from each other, thereby improving the convenience and efficiency of adjusting the spacing between the forks 10. The fixing ring 95 is located directly above the hydraulic rod 72. The rod wall of the screw rod 94 is threadedly sleeved with a nut 96. The outer wall of the nut 96 is fixedly connected to the outer wall of the adjacent L-shaped movable plate 6. A second bevel gear 97 is fixedly connected to the side wall of one of the screw rods 94. The second bevel gear 97 and the outer wall of the first bevel gear 93 are vertically meshed with each other. When the distance between the forks 10 cannot match the pallet sockets, the automatic and convenient adjustment of the spacing between the forks 10 is achieved by starting the motor 92 of the spacing adjustment mechanism 9.

[0028] In summary, when the folding ejector is used, when the forklift has a small moving space and the cargo fork 10 is inconvenient to be taken out from the insertion hole of the pallet, the hydraulic rod 72 is first started, and the hydraulic rod 72 drives the push plate 73 to move. The push plate 73 first makes the contact plate 75 contact the cargo, and then the push plate 73 continues to move to squeeze the rubber cover 74, so that the air in the rubber cover 74 is transported to the air cylinder 81 along the hose 76, and then the air pushes the annular piston assembly 82 in the air cylinder 81 to move upward, the annular piston assembly 82 squeezes the return spring 87, and the air in the air cylinder 81 is discharged from the exhaust check valve 85, and the annular piston assembly 82 drives the insert cylinder 83 away from the insert block 11, and then The fork 10 is separated from the L-shaped movable plate 6, and then the forklift is directly moved. After the forklift is moved out, the driver in the cab pulls the plug 11 and the fork 10 through the pull ring 14 and the wire rope 88, and folds the fork 10 downward to take it out, so as to extract the fork 10 from the pallet. Then the staff cooperates with the driver to continue pulling the wire rope 88, and inserts the plug 11 of the fork 10 into the L-shaped movable plate 6 again. At this time, there is no need to push all the goods away from the fork 10, nor is there any need to recycle the pushing component and then fold the fork 10, which saves time and effort. Then the solenoid valve 86 is opened, and the solenoid valve 86 inflates the top of the air cylinder 81, and at the same time, the reset spring 87 Under the action of the restoring force, the insert cylinder 83 is inserted into the limiting through hole of the insert block 11 again, and the air at the bottom of the air cylinder 81 returns to the rubber cover 74 through the hose 76 for reuse. In addition, the contact plate 75 and the push plate 73 can push the goods a little distance to the inside of the placement area to ensure the stability of the goods placement and avoid the situation where the goods are suspended and collapsed. This mechanism enables the forklift L-shaped fork plate to have the function of separate folding, shortening the steps and time for taking the fork 10 out of the pallet, which can effectively improve the convenience of using the folding pusher and improve the efficiency of the forklift in handling goods. In addition, the forklift pusher also has the function of pushing goods to try to prevent the goods from being suspended. When the distance between the forks 10 cannot match the pallet sockets, the motor 92 is started, and the motor 92 rotates the screw 94 through the first bevel gear 93 and the second bevel gear 97. The two screws 94 rotate through the fixing ring 95, and the two nuts 96 move toward or away from each other because the threads of the screws 94 are in opposite directions. The nuts 96 move the moving cylinder 5 of the L-shaped moving plate 6 on the fixing rod 4, thereby realizing convenient and automatic adjustment of the spacing between the forks 10. This mechanism enables the folding ejector to have the function of automatically adjusting the spacing between the forks 10, thereby improving the convenience of using the folding ejector.

[0029] It should be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A folding ejector, comprising two fixing plates (1), characterized in that: The side ends of the two fixed plates (1) are commonly fixedly connected to two cross bars (2), the outer walls on the same side of the two cross bars (2) are commonly fixedly connected to a connecting plate (3), the inner walls of the two connecting plates (3) are commonly fixedly connected to a fixed rod (4), the rod wall of the fixed rod (4) is movably sleeved with two moving cylinders (5), the outer wall of the moving cylinder (5) is fixedly connected to an L-shaped moving plate (6), the bottom end of the L-shaped moving plate (6) is provided with a rectangular through hole, and the hole wall of the rectangular through hole is movably connected to an insert block (11), the outer wall of the insert block (11) is fixedly connected to a fork (10), the outer walls of the two L-shaped moving plates (6) are both fixedly connected to a limiting mechanism (8), the outer wall of the connecting plate (3) is fixedly connected to a spacing adjustment mechanism (9), and the inner walls of the two fixed plates (1) are commonly fixedly connected to a pushing mechanism (7); The ejection mechanism (7) comprises a mounting plate (71) fixedly connected to the inner walls of the two fixed plates (1); the outer wall of the mounting plate (71) is fixedly connected to a hydraulic rod (72); the movable end of the hydraulic rod (72) is fixedly connected to a push plate (73); the outer wall of the push plate (73) is fixedly connected to a rubber cover (74); the outer wall of the rubber cover (74) is fixedly connected to a contact plate (75); the outer wall of the rubber cover (74) is fixedly connected to a hose (76); the output end of the hose (76) passes through the outer wall of the L-shaped movable plate (6); The limiting mechanism (8) comprises an air cylinder (81) fixedly connected to the outer wall of the L-shaped movable plate (6); the outer wall of the bottom end of the air cylinder (81) is fixedly connected to the output end of the hose (76); the inner wall of the air cylinder (81) is movably connected to an annular piston assembly (82); the inner wall of the annular piston assembly (82) is fixedly connected to an insert cylinder (83); the upper surface of the insert block (11) is provided with a limiting through hole matched with the insert cylinder (83); the outer wall of the insert cylinder (83) is movably sleeved with a sliding sealing assembly (84); ), the outer wall of the sliding seal assembly (84) is fixedly connected to the lower surface of the air cylinder (81) by bolts, the top of the air cylinder (81) is fixedly connected to an exhaust check valve (85) and a solenoid valve (86), the top outer wall of the insert (83) is fixedly connected to a return spring (87), the outer wall of the insert block (11) is fixedly connected to a steel wire rope (88), the outer wall of the steel wire rope (88) is movably sleeved with a fixed pulley (89), and the top of the fixed pulley (89) is fixedly connected to the outer wall of the fixed plate (1); The spacing adjustment mechanism (9) comprises an outer cover (91) fixedly connected to the outer wall of the connecting plate (3), a motor (92) fixedly connected inside the outer cover (91), an output end of the motor (92) fixedly connected to a first bevel gear (93), the outer walls of the two connecting plates (3) are each provided with a circular hole, and the hole wall of the circular hole is connected to a screw rod (94) via a rolling bearing, a fixing ring (95) is fixedly connected to the opposite sides of the two screw rods (94), a nut (96) is threadedly sleeved on the rod wall of the screw rod (94), the outer wall of the nut (96) is fixedly connected to the outer wall of the adjacent L-shaped movable plate (6), a second bevel gear (97) is fixedly connected to the side wall of one of the screw rods (94), and the second bevel gear (97) and the outer wall of the first bevel gear (93) are vertically meshed with each other; The outer wall of the steel wire rope (88) is movably sleeved with a rubber sleeve (12), the outer wall of the rubber sleeve (12) is fixedly sleeved with a fixing tube (13), and the side of the steel wire rope (88) away from the plug block (11) is fixedly connected with a pull ring (14).

2. The folding ejector according to claim 1, characterized in that: Through holes are formed on the outer walls at the four corners of the push plate (73), and the hole walls of the through holes are movably connected to T-shaped rods (15), and the side walls of the T-shaped rods (15) are fixedly connected to the outer wall of the contact plate (75).

3. The folding ejector according to claim 1, characterized in that: The threads of the two screw rods (94) rotate in opposite directions, and the screw rods (94) and nuts (96) are both made of stainless steel.

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