Four-way forklift with cargo clamping and fixing structure

Abstract

The utility model relates to the technical field of four-way forklifts, in particular to a four-way forklift with a cargo clamping structure, which comprises a forklift main body, two front arms which extend forwards are symmetrically arranged at the front end of the forklift main body, a portal is fixedly mounted between the two front arms and comprises a rectangular frame, and a cargo fork component is slidably connected in the frame. A clamping and fixing assembly is slidably connected to the position, above the pallet fork assembly, in the frame. According to the four-way forklift with the cargo clamping and fixing structure, the distance between the two right-angle forks can be adjusted according to the size of cargoes through the right-angle forks and the two-way lead screws arranged in the pallet fork assemblies, meanwhile, the cargoes on the right-angle forks can be clamped and fixed through the second lead screws, the sliding rods and the clamping and fixing plates arranged in the clamping and fixing assemblies, and the cargoes are prevented from sliding off.

Description

Technical Field

[0001] The utility model relates to the technical field of four-way forklifts, in particular to a four-way forklift with a cargo clamping structure. Background Art

[0002] The four-way electric forklift combines the functions of a reach forklift, a side forklift, and a counterbalanced forklift. It is basically the same as a reach forklift in structure, with a mast located between the front and rear wheels, two arms extending out in front of the forklift, and support wheels installed at the front of the arms, so that the forks can move forward and backward in the longitudinal direction of the forklift along with the mast.

[0003] The utility model patent with the authorization announcement number CN220432238U discloses a four-way forklift with intelligent control, including a guide frame, a hydraulic cylinder, a movable frame, an automatic adjustment structure for the distance between forks and two forks. The device is provided with two fixed seats, so that there is a certain distance between the forks and the sensor, ensuring that when the microwave sensor stops sending a signal to the electric push rod, the electric push rod stops running, and the two forks will not be pushed outside the two sides of the goods, and the goods can be lifted smoothly; start the microwave sensor, when the microwave sensor detects an object in front within the front detection distance, it will send a signal to the electric push rod, and the electric push rod will continue to drive the two forks to slide to the two sides of the movable frame until there is no object in the front detection distance of the microwave sensor, stop sending a signal to the electric push rod, and the electric push rod stops running.

[0004] Although this technical solution facilitates finding a stable placement position for the forks through automatic intelligent adjustment of the positions of the two forks, reducing the difficulty of the staff's work, this technical solution does not clamp the cargo on the forks, which is dangerous. In view of this, we propose a four-way forklift with a cargo clamping structure. Utility Model Content

[0005] In view of the above-mentioned defects or deficiencies in the prior art, it is desirable to provide a four-way forklift with a cargo clamping structure.

[0006] In a first aspect, the present application provides a four-way forklift with a cargo clamping structure, comprising a forklift body, wherein two forwardly extending forearms are symmetrically provided at the front end of the forklift body, a door frame is fixedly installed between the two forearms, the door frame comprises a rectangular frame, a cargo fork assembly is slidably connected in the frame, and a clamping assembly is slidably connected in the frame above the cargo fork assembly;

[0007] The fork assembly comprises a rectangular frame slidably connected to the inner side wall of the frame, the front side of the rectangular frame is provided with two right-angle forks which can slide relatively in the horizontal direction, and the inner bottom surface of the frame is provided with a hydraulic cylinder for driving the fork assembly to slide up and down;

[0008] The clamping assembly comprises a sliding rod horizontally slidably connected to the inner side wall of the frame, a right-angle rod is welded and fixed to the middle of the front side wall of the sliding rod, and a clamping plate for clamping goods is welded and fixed to the bottom end of the right-angle rod.

[0009] According to the technical solution provided in the embodiment of the present application, a door is installed on the forklift body, and a wheel that can be turned 90 degrees in a horizontal plane is installed at the bottom end of the forearm.

[0010] According to the technical solution provided in the embodiment of the present application, a first T-shaped slide groove is provided on the left and right inner walls of the frame near the front end, and a first T-shaped sliding block adapted to the first T-shaped slide groove on the same side is integrally formed on the left and right side walls of the rectangular frame, and a protrusion is integrally formed on the rear side wall of the rectangular frame, and the bottom end of the protrusion is connected to the top end of the telescopic end of the hydraulic cylinder.

[0011] According to the technical solution provided in the embodiment of the present application, two straight rods arranged horizontally side by side are welded and fixed in the rectangular frame, two sliding holes respectively matched with the two straight rods are provided on the protruding plate of the vertical section of the right-angle fork, a bidirectional screw rod is rotatably connected between the two straight rods in the rectangular frame, and a first threaded hole matched with the bidirectional screw rod is provided on the protruding plate of the vertical section of the right-angle fork between the two sliding holes; a first motor is installed on one side of the bidirectional screw rod in the rectangular frame, and the output shaft of the first motor is coaxially connected with the bidirectional screw rod.

[0012] According to the technical solution provided in the embodiment of the present application, a second screw rod is vertically rotatably connected at the rear of the frame, a second threaded hole for threaded connection with the second screw rod is opened in the middle of the sliding rod, a second motor is installed at the top of the frame, and the output shaft of the second motor is coaxially connected to the second screw rod.

[0013] According to the technical solution provided in the embodiment of the present application, a second T-shaped slide groove is provided on the left and right inner walls of the frame near the rear end, and a second T-shaped sliding block adapted to the second T-shaped slide groove is integrally formed on both ends of the slide rod.

[0014] According to the technical solution provided in the embodiment of the present application, the thread directions at both ends of the bidirectional screw rod are opposite, the thread directions of the first threaded holes on the two right-angle forks are opposite, the two right-angle forks are located at both ends of the bidirectional screw rod, and the first threaded holes on the two right-angle forks are respectively threadedly sleeved on the threaded segments with opposite directions at both ends of the bidirectional screw rod.

[0015] According to the technical solution provided in the embodiment of the present application, when the sliding rod slides to abut against the top end of the rectangular frame, the clamping plate and the bottom end of the right-angle fork are located on the same horizontal plane.

[0016] To summarize, the present technical solution specifically discloses a four-way forklift with a cargo clamping structure, which comprises a forklift body, two forward-extending forearms are symmetrically provided at the front end of the forklift body, a door frame is fixedly installed between the two forearms, the door frame comprises a rectangular frame, a fork assembly is slidably connected in the frame, and a clamping assembly is slidably connected in the frame above the fork assembly; the distance between the two right-angle forks can be adjusted according to the size of the cargo by means of the right-angle fork and the bidirectional screw rod provided in the fork assembly, and at the same time, the second screw rod, the sliding rod and the clamping plate provided in the clamping assembly can clamp the cargo on the right-angle fork to prevent it from slipping. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a schematic diagram of the door frame structure in the utility model;

[0020] Figure 3 It is an exploded view of the portal frame structure in the utility model;

[0021] Figure 4 It is an exploded view of the fork assembly structure in the utility model;

[0022] Figure 5 It is an exploded view of the clamping assembly structure in the utility model;

[0023] Figure 6 It is a cross-sectional view of the frame structure in the utility model.

[0024] In the figure:

[0025] 1. Forklift body; 11. Door; 12. Forearm; 13. Wheel;

[0026] 2. gantry; 21. frame; 211. first T-shaped slide; 212. second T-shaped slide; 22. fork assembly; 221. rectangular frame; 2211. straight rod; 2212. first T-shaped slider; 2213. bump; 222. right-angle fork; 2221. slide hole; 2222. first threaded hole; 223. bidirectional screw rod; 224. first motor; 225. hydraulic cylinder; 23. clamping assembly; 231. second screw rod; 232. slide rod; 2321. second T-shaped slider; 2322. second threaded hole; 233. right-angle rod; 234. clamping plate; 235. second motor. DETAILED DESCRIPTION

[0027] The present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the relevant utility model, rather than to limit the utility model. It is also necessary to explain that, for ease of description, only the parts related to the utility model are shown in the accompanying drawings.

[0028] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0029] See also Figure 1-Figure 6 A four-way forklift with a cargo clamping structure comprises a forklift body 1, two forwardly extending forearms 12 are symmetrically arranged at the front end of the forklift body 1, a door frame 2 is fixedly installed between the two forearms 12, the door frame 2 comprises a rectangular frame 21, a fork assembly 22 is slidably connected in the frame 21, and a clamping assembly 23 is slidably connected above the fork assembly 22 in the frame 21;

[0030] The fork assembly 22 comprises a rectangular frame 221 slidably connected to the inner wall of the frame 21, and two right-angle forks 222 that can slide relative to each other in the horizontal direction are arranged on the front side of the rectangular frame 221. A hydraulic cylinder 225 for driving the fork assembly 22 to slide up and down is installed on the inner bottom surface of the frame 21;

[0031] The clamping assembly 23 includes a slide bar 232 horizontally slidably connected to the inner wall of the frame 21, a right angle bar 233 is welded and fixed to the middle of the front wall of the slide bar 232, and a clamping plate 234 for clamping goods is welded and fixed to the bottom end of the right angle bar 233.

[0032] In this embodiment, a door 11 is installed on the forklift body 1, and a wheel 13 that can be turned 90 degrees in the horizontal plane is installed at the bottom end of the forearm 12; the wheel 13 that can be turned 90 degrees in the horizontal plane can drive the forklift body 1 to rotate, thereby adjusting the direction of the door frame 2.

[0033] Furthermore, a first T-shaped slide groove 211 is provided near the front end on the left and right inner walls of the frame 21, and a first T-shaped sliding block 2212 adapted to the first T-shaped slide groove 211 on the same side is integrally formed on the left and right side walls of the rectangular frame 221. A protrusion 2213 is integrally formed on the rear side wall of the rectangular frame 221, and the bottom end of the protrusion 2213 is connected to the top end of the telescopic end of the hydraulic cylinder 225; the hydraulic cylinder 225 can drive the fork assembly 22 to slide up and down along the first T-shaped slide groove 211.

[0034] Secondly, two straight rods 2211 arranged horizontally and side by side are welded and fixed in the rectangular frame 221, and two sliding holes 2221 respectively matched with the two straight rods 2211 are provided on the protruding plate of the vertical section of the right-angle fork 222, and a bidirectional screw rod 223 is rotatably connected between the two straight rods 2211 in the rectangular frame 221, and a first threaded hole 2222 matched with the bidirectional screw rod 223 is provided between the two sliding holes 2221 on the protruding plate of the vertical section of the right-angle fork 222; a first motor 224 is installed on one side of the bidirectional screw rod 223 in the rectangular frame 221, and the output shaft of the first motor 224 is coaxially connected with the bidirectional screw rod 223; the first motor 224 rotates, driving the bidirectional screw rod 223 to rotate forward and reverse, and then driving the right-angle fork 222 to slide back and forth along the straight rod 2211.

[0035] Furthermore, a second screw rod 231 is vertically rotatably connected at the rear of the frame 21, a second threaded hole 2322 for threaded connection with the second screw rod 231 is opened in the middle of the slide rod 232, and a second motor 235 is installed at the top of the frame 21, and the output shaft of the second motor 235 is coaxially connected to the second screw rod 231; the second motor 235 rotates, driving the second screw rod 231 to rotate forward and reverse.

[0036] Secondly, a second T-shaped slide groove 212 is provided near the rear end of the left and right inner walls of the frame 21, and a second T-shaped slider 2321 adapted to the second T-shaped slide groove 212 is integrally formed at both ends of the left and right ends of the slide rod 232; the second T-shaped slider 2321 enables the slide rod 232 to slide up and down along the second T-shaped slide groove 212, thereby enabling the clamping plate 234 to slide up and down.

[0037] Furthermore, the thread directions at both ends of the bidirectional screw rod 223 are opposite, the thread directions of the first threaded holes 2222 on the two right-angle forks 222 are opposite, the two right-angle forks 222 are located at both ends of the bidirectional screw rod 223, and the first threaded holes 2222 on the two right-angle forks 222 are respectively threadedly sleeved on the threaded segments with opposite directions at both ends of the bidirectional screw rod 223; the distance between the two right-angle forks 222 can be adjusted according to the size of the goods.

[0038] Secondly, when the slide bar 232 slides to abut against the top end of the rectangular frame 221, the clamping plate 234 and the bottom end of the right-angle fork 222 are located on the same horizontal plane, ensuring that the clamping plate 234 can clamp the goods on the right-angle fork 222.

[0039] Working principle: When the four-way forklift with a cargo clamping structure of the utility model is in use, the user first starts the first motor 224 according to the size of the cargo, drives the two-way screw rod 223 to rotate, so that the two right-angle forks 222 slide along the straight rod 2211, adjusts the distance between the two right-angle forks 222, and then forks the cargo, and then starts the second motor 235 to drive the second screw rod 231 to rotate, so that the sliding rod 232 moves up and down along the frame 21, so that the clamping plate 234 is tightly fitted with the top of the cargo, thereby forming a triangular fixation for the cargo together with the right-angle fork 222 at the bottom.

[0040] The above description is only a preferred embodiment of the present application and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the utility model involved in the present application is not limited to the technical solution formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the concept of the utility model. For example, the above features are replaced with the technical features disclosed in the present application but not limited to those with similar functions.

Claims

1. A four-way forklift with a cargo clamping structure, comprising a forklift body (1), characterized in that: The front end of the forklift body (1) is symmetrically provided with two forwardly extending forearms (12), a door frame (2) is fixedly mounted between the two forearms (12), the door frame (2) comprises a rectangular frame (21), a fork assembly (22) is slidably connected inside the frame (21), and a clamping assembly (23) is slidably connected above the fork assembly (22) inside the frame (21); The fork assembly (22) comprises a rectangular frame (221) slidably connected to the inner wall of the frame (21); the front side of the rectangular frame (221) is provided with two right-angle forks (222) that can slide relative to each other in a horizontal direction; and the inner bottom surface of the frame (21) is provided with a hydraulic cylinder (225) for driving the fork assembly (22) to slide up and down; The clamping assembly (23) comprises a sliding rod (232) horizontally slidably connected to the inner side wall of the frame (21), a right-angle rod (233) is welded and fixed to the middle of the front side wall of the sliding rod (232), and a clamping plate (234) for clamping goods is welded and fixed to the bottom end of the right-angle rod (233).

2. The four-way forklift with cargo clamping structure according to claim 1, characterized in that: A door (11) is installed on the forklift body (1), and a wheel (13) capable of turning 90 degrees in a horizontal plane is installed at the bottom end of the forearm (12).

3. The four-way forklift with cargo clamping structure according to claim 1, characterized in that: The left and right inner walls of the frame (21) are each provided with a first T-shaped slide groove (211) near the front end, the left and right side walls of the rectangular frame (221) are each integrally formed with a first T-shaped slide block (2212) adapted to the first T-shaped slide groove (211) on the same side, and a protrusion (2213) is integrally formed on the rear side wall of the rectangular frame (221), the bottom end of the protrusion (2213) being connected to the top end of the telescopic end of the hydraulic cylinder (225).

4. The four-way forklift with cargo clamping structure according to claim 1, characterized in that: Two straight rods (2211) arranged horizontally and side by side are welded and fixed in the rectangular frame (221); two sliding holes (2221) respectively matching the two straight rods (2211) are provided on the vertical section protruding plate of the right-angle fork (222); a bidirectional screw rod (223) is rotatably connected between the two straight rods (2211) in the rectangular frame (221); a first threaded hole (2222) matching the bidirectional screw rod (223) is provided on the vertical section protruding plate of the right-angle fork (222) between the two sliding holes (2221); a first motor (224) is installed on one side of the bidirectional screw rod (223) in the rectangular frame (221); an output shaft of the first motor (224) is coaxially connected to the bidirectional screw rod (223).

5. The four-way forklift with cargo clamping structure according to claim 1, characterized in that: A second screw rod (231) is vertically rotatably connected to the rear of the frame (21); a second threaded hole (2322) for threaded connection with the second screw rod (231) is provided in the middle of the slide rod (232); a second motor (235) is installed at the top of the frame (21); an output shaft of the second motor (235) is coaxially connected to the second screw rod (231).

6. The four-way forklift with cargo clamping structure according to claim 1, characterized in that: The left and right inner walls of the frame (21) are each provided with a second T-shaped slide groove (212) near the rear end, and the left and right ends of the slide rod (232) are each integrally formed with a second T-shaped slide block (2321) adapted to the second T-shaped slide groove (212).

7. The four-way forklift with cargo clamping structure according to claim 4, characterized in that: The threads at both ends of the bidirectional screw rod (223) are in opposite directions, the threads of the first threaded holes (2222) on the two right-angle forks (222) are in opposite directions, the two right-angle forks (222) are located at both ends of the bidirectional screw rod (223), and the first threaded holes (2222) on the two right-angle forks (222) are respectively threadedly sleeved on the threaded sections at both ends of the bidirectional screw rod (223) in opposite directions.

8. The four-way forklift with cargo clamping structure according to claim 1, characterized in that: When the sliding rod (232) slides to abut against the top end of the rectangular frame (221), the clamping plate (234) and the bottom end of the right-angle fork (222) are located on the same horizontal plane.

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