CN116081529A - Fork frame capable of being stably lifted by multiple hoppers - Google Patents

Abstract

The invention discloses a fork frame that can be equipped with a variety of hoppers for stable lifting. It includes a fork frame body and a hopper. The fork frame body includes a push handle frame and two supporting frames arranged in parallel. The side of the support frame close to the push handle frame is provided with a positioning device, and the side away from the push handle frame is provided with a limit device. The position device is used to keep the center position of the outlet of different specifications of hoppers consistent. The limit device is used to limit the hopper to the support. On the frame, the top of the support frame is provided with a groove, and a threaded rod is movable in the groove, and a roller seat is set on the outside of the threaded rod, and the top of the roller seat is fixedly connected with the threaded cylinder. Positioning device and limit device, the positioning device can keep the center position of the outlet of different specifications of hoppers loaded on the support frame consistent, and the limit device can limit the hopper on the support frame, which has a wide range of applications and can meet the lifting requirements The hopper is simple in structure, reliable in operation and easy to operate.

Description

A fork frame that can be equipped with various hoppers for stable lifting

technical field

The invention relates to the field of rack insertion devices, in particular to a fork rack that can be equipped with various hoppers for stable lifting.

Background technique

Forklifts are industrial handling vehicles, which refer to various wheeled handling vehicles for loading and unloading, stacking and short-distance transportation of palletized goods. They are widely used in ports, stations, airports, freight yards, factory workshops, warehouses, and distribution centers. It is an indispensable equipment in pallet transportation and container transportation to carry out loading, unloading and handling operations of pallet goods in cabins, carriages and containers.

In actual production, the inventor needs to use a forklift to carry hoppers of different specifications and sizes, and at the same time needs to ensure that the central positions of the outlets of hoppers of different specifications and sizes on the forklift are always consistent. The existing forklifts cannot meet this requirement.

Contents of the invention

In order to overcome the deficiencies in the prior art, the present invention provides a fork frame that can be equipped with a variety of hoppers for stable lifting. By setting a positioning device and a limit device at the front and rear ends of the support frame, the positioning device can allow the The central position of the outlet of different specifications of hoppers is always the same. The limit device can limit the hopper on the support frame. It has a wide range of applications and can meet the lifting of various hoppers. It has a simple structure, reliable operation and simple operation.

In order to solve the above technical problems, the present invention provides the following technical solutions: a fork frame that can be equipped with a variety of hoppers for stable lifting, including a fork frame body and a hopper, and the fork frame body includes a push handle frame and two parallel supports The push handle frame is set perpendicular to the support frame. A positioning device is provided on the side of the support frame close to the push handle frame, and a limit device is provided on the side away from the push handle frame. The center position of the feed port is always the same. The limit device is used to limit the hopper on the support frame. The top of the support frame is provided with a groove, and a threaded rod is movable in the groove. The threaded rod The outer side of the sleeve is provided with a roller seat, the top of the roller seat is fixedly connected with the threaded cylinder, the top of the threaded cylinder is fixedly connected with an adjustment frame, and a driving rod is movable in the adjustment frame, and the end of the driving rod The suction cup is fixed in contact with the hopper; the positioning device includes a support, a rotating shaft arranged on the support and a positioning rod assembly that is rotated on the rotating shaft, and the positioning rod assembly includes a first positioning rod and a positioning rod. The second positioning rod, and both are L-shaped rods; the limit device includes a fixed block and a limit pin arranged at the end of the support frame, and the fixed block is provided with a limit for inserting the limit pin hole, the two sides of the limiting hole are respectively provided with a first limiting groove and a second limiting groove, and one side of the limiting pin is provided with a Limit protrusion.

As a preferred technical solution of the present invention, a driving motor is fixed at the bottom of the ends of the two groups of support frames, the output end of the driving motor is fixedly connected to the threaded rod, and the middle part of the roller seat is provided with a The threaded structure is provided, and the inside of the threaded barrel is engaged and fixed with the rotating shaft, and the top middle of the rotating shaft is provided with a hole structure, and a rotating rod is arranged in the hole structure, and the rotating rod and the bottom end of the adjustment frame Active connection through bearing structure.

As a preferred technical solution of the present invention, the adjustment mounts of the two groups have a radian larger than π/2, and a chute is opened in the middle, and the drive rod is clamped in the chute by a nut whose diameter is larger than the width of the chute. Inside, and a hand wheel is fixed at the outer end of the drive rod.

As a preferred technical solution of the present invention, the positioning rod assembly also includes a PTFE sleeve sleeved on the rotary shaft, the PTFE sleeve includes a sleeve part and a limiting part, and the support is a The side is provided with a limit groove adapted to the limit part, and the first positioning rod and the second positioning rod are rotatably arranged on the PTFE sleeve.

As a preferred technical solution of the present invention, the rotary shaft includes a head and a rod, the end of the rod away from the head is provided with a threaded section, and the threaded section is provided with a fixing nut.

As a preferred technical solution of the present invention, the upper end surface of the fixed block is not higher than the upper end surface of the support frame, the depth of the first limiting groove is greater than the depth of the second limiting groove, and the limiting protrusion When located in the first limiting groove, the top of the limiting pin is not higher than the upper surface of the support frame, and when the limiting protrusion is located in the second limiting groove, the top of the limiting pin is higher than the upper end surface of the supporting frame. upper end face.

As a preferred technical solution of the present invention, grabbing grooves are provided around the limit hole.

As a preferred technical solution of the present invention, elastic pads are provided on the end faces of the first positioning rod and the second positioning rod that abut against the support frame.

As a preferred technical solution of the present invention, the groove is an arc-shaped circular groove structure, and its length is greater than three quarters of the length of the support frame.

As a preferred technical solution of the present invention, the driving motors of the two groups are motor structures, and one end thereof is electrically connected to the vehicle motor.

Compared with prior art, the beneficial effect that the present invention can reach is:

1. In the present invention, by setting the positioning device and the limit device at the front and rear ends of the support frame respectively, the positioning device can make the center positions of the outlets of the hoppers of different specifications loaded on the support frame consistent all the time, and the limit device can set the hopper The limit is on the support frame, which has a wide range of applications and can meet the needs of lifting various hoppers, and has a simple structure, reliable operation and simple operation.

2. In the present invention, through the provided threaded rod-roller seat, threaded cylinder-rotating shaft, adjustment frame-drive rod, three sets of driving structures can be used to change the size according to different sizes of hoppers. First, the threaded rod at the bottom end- The roller seat structure can move the threaded cylinder to the designated position through the roller shaft to meet the width requirements of the hopper. The structure of the threaded cylinder and the rotating shaft is convenient for the user to adjust according to the different heights of the hopper. It is unscrewed out of the barrel, and the adjustment frame at the top is connected to the rotating shaft in a movable manner, so the angle is not affected. After reaching the specified height, one end of the hopper can be fixed in contact with the suction cup through the cooperation of the adjustment frame and the driving rod. The suction cup-drive rod can be moved in the chute to adapt to different planes of the hopper to achieve stable fixation, push the hand wheel to drive the drive rod and suction cup to move, and finally clamp the drive rod to both ends of the adjustment frame through nuts It only needs to be completed, and compared with the existing structure, this device has the function of adapting to hoppers of various sizes and shapes, and has the effect of strengthening the clamping.

Description of drawings

Fig. 1 is a structural representation of the present invention;

Fig. 2 is a structural schematic diagram of the adjustment frame of the present invention;

Fig. 3 is a structural schematic diagram of the threaded cylinder-rotating shaft of the present invention;

Fig. 4 is the schematic diagram of positioning device in the present invention;

Fig. 5 is the top view of positioning device in the present invention;

Fig. 6 is a partial exploded view of the positioning device in the present invention;

Fig. 7 is the schematic diagram of the limiting device in the present invention;

Fig. 8 is a schematic diagram of the first state of the limiting device in the present invention;

Fig. 9 is a schematic diagram of the second state of the limiting device in the present invention.

Among them: 1. fork frame body; 2. hopper; 3. push handle frame; 4. support frame; 41. groove; 411. threaded rod; 412. roller seat; 413. threaded cylinder; 414. rotating shaft; ;42, adjusting frame; 421, driving rod; 422, hand wheel; 423, suction cup; 424, chute; 43, driving motor; 5, positioning device; 51, bearing; ; , limiting part; 55, fixed nut; 56, elastic pad; 6, limiting device; 61, fixed block; 611, limiting hole; 612, first limiting groove; 613, second limiting groove; 62, Limit pin; 621, limit protrusion; 63, grab groove.

Detailed ways

In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further elaborated below in conjunction with specific embodiments, but the following embodiments are only preferred embodiments of the present invention, not all. Based on the examples in the implementation manners, other examples obtained by those skilled in the art without making creative efforts all belong to the protection scope of the present invention. The experimental methods in the following examples, unless otherwise specified, are conventional methods, and the materials, reagents, etc. used in the following examples, unless otherwise specified, can be obtained from commercial sources.

Example:

As shown in Figures 1-9, the present invention provides a lifting fork with a variety of hoppers, including a fork body 1 and a hopper 2, the fork body 1 includes a push handle frame 3 and two parallel support frames 4. The push handle frame 3 is vertically arranged with the support frame 4, and the support frame 4 is provided with a positioning device 5 on the side close to the push handle frame 3, and a limit device 6 is provided on the side away from the push handle frame 3, and the positioning device 5 It is used to make the central position of the outlet of different specifications of hoppers 2 consistent. The limit device 6 is used to limit the hopper 2 on the support frame 4. The top of the support frame 4 is provided with a groove 41. The groove 41 A threaded rod 411 is provided for the inner activity, and the outer side of the threaded rod 411 is provided with a roller seat 412. The top of the roller seat 412 is fixedly connected with the threaded cylinder 413, and the top of the threaded cylinder 413 is fixedly connected with an adjustment frame 42, and the adjustment frame 42 is movable. A driving rod 421 is provided, and the end of the driving rod 421 is fixed in contact with the hopper 2 through the suction cup 423, which has a wide range of applications and can meet the requirements of lifting various hoppers.

Specifically, the positioning device 5 includes a support 51, a rotary shaft 52 disposed on the support 51, and a positioning rod assembly 53 that is rotatably disposed on the rotary shaft 52, and the positioning rod assembly 53 includes a first positioning The rod 531 and the second positioning rod 532 are both L-shaped rods. In this embodiment, the lengths of the first positioning rod 531 and the second positioning rod 532 are different, and the positioning rod assembly 53 can fit three Hoppers 2 of different sizes, such as hoppers 2 with three capacities of 1400L, 600L, and 400L, when the hopper with a capacity of 1400L is placed on the support frame 4, both the first positioning rod 531 and the second positioning rod 532 rotate toward the push handle frame 3. side, one side of the hopper abuts against the side wall of the support 51; when the hopper with a capacity of 600L is placed on the support frame 4, the shorter first positioning rod 531 is turned around the rotary shaft 52 onto the support frame 4, and the hopper The side is in contact with the first positioning rod 531. Similarly, the hopper with a capacity of 400L corresponds to the second positioning rod 532. In this way, the central positions of the outlets of the three types of capacity hoppers are always the same, and the structure is simple, reliable and easy to operate.

Further, the positioning rod assembly 53 also includes a tetrafluoro sleeve 54 sleeved on the rotary shaft 52, the tetrafluoro sleeve 54 includes a sleeve part 541 and a stop part 542, and the tetrafluoro sleeve 54 adopts Made of PTFE, it has excellent high and low temperature resistance, low friction and wear, chemical corrosion resistance, high electrical strength, non-stick, weather resistance and other properties and good physical and mechanical properties; it can ensure that the two positioning rods can rotate flexibly, reducing friction; one side of the support 51 is provided with a limit groove 511 adapted to the limit portion 542, and the first positioning rod 531 and the second positioning rod 532 are rotated and arranged on the PTFE sleeve 54; wherein, the limit The position portion 542 can be a polygonal flange. After it is inserted into the limiting groove 511 , the PTFE sleeve 54 will not rotate freely, and can be used as a rotating shaft of the first positioning rod 531 and the second positioning rod 532 .

Further, the rotary shaft 52 includes a head 521 and a rod 522, the end of the rod 522 away from the head 521 is provided with a threaded section 523, and the threaded section 523 is provided with a fixing nut 55, and the rotary shaft 52 and the The fixing nut 55 is threaded and locked to fix the PTFE sleeve 54 on the support 51, and this structure is easy to disassemble and assemble, and more positioning rods of different sizes can be replaced to adapt to hoppers 2 of more specifications.

Next, drive motors 43 are fixed on the end bottoms of the two sets of support frames 4, the output ends of the drive motors 43 are fixedly connected to the threaded rods 411, and the middle part of the roller base 412 is provided with a threaded structure that matches the threaded rods 411, and The inside of the threaded cylinder 413 is engaged and fixed with the rotating shaft 414, and the top middle part of the rotating shaft 414 is provided with a hole structure, and a rotating rod 415 is arranged in the hole structure, and the rotating rod 415 is movably connected with the bottom end of the adjustment frame 42 through a bearing structure; The two sets of adjustment brackets 42 are radians greater than π/2, and the middle part is provided with a chute 424, and the driving rod 421 is clamped in the chute 424 through a nut whose diameter is larger than the width of the chute 424, and on the outside of the driving rod 421 The handwheel 422 is fixed at the end, and the driving structure can be changed according to the hopper 2 of different sizes through the set threaded rod 411-roller seat 412, threaded cylinder 413-rotating shaft 414, adjustment frame 42-driving rod 421 to cooperate with the driving structure. Dimensions, first of all, the threaded rod 411-roller seat 412 structure at the bottom can move the threaded cylinder 413 to the designated position through the roller shaft to meet the width requirements of the hopper 2, and the structure of the threaded cylinder 413 and the rotating shaft 414 is convenient for users to adjust according to the size of the hopper 2. To adjust at different heights, the user directly rotates the rotating shaft 414 through the rotating rod 415 to unscrew from the threaded cylinder 413, and the adjustment frame 42 at the top is connected to the rotating shaft 414, so the angle is not affected, and after reaching the specified height, One end of the hopper 2 can be fixed in contact with the suction cup 423 through the cooperation of the adjustment frame 42 and the driving rod 421, and the user can move the suction cup 423-driving rod 421 in the chute 424 to adapt to different planes of the hopper 2 and realize Stable and fixed, push the hand wheel 422 to drive the drive rod 421 and the suction cup 423 to move, and finally the drive rod 421 is clamped on both ends of the adjustment frame 42 through the nut to complete. Compared with the existing structure, this device has the ability to adapt to various The size and the role of the hopper 2 of various forms play the effect of strengthening the clamping.

Specifically, the limit device 6 includes a fixed block 61 and a limit pin 62 arranged at the end of the support frame 4, and the upper end surface of the fixed block 61 is not higher than the upper end surface of the support frame 4, which is convenient for the hopper 2 to be placed on the On the support frame 4, the fixed block 61 is provided with a limit hole 611 for inserting the limit pin 62, and the two sides of the limit hole 611 are respectively provided with a first limit groove 612 and a second limit groove 613 , the depth of the first limiting groove 612 is greater than the depth of the second limiting groove 612, and one side of the limiting pin 62 is provided with a limiting pin that is compatible with the first limiting groove 612 and the second limiting groove 613. Position protrusion 621, when the position-limiting protrusion 621 is located in the first position-limiting groove 612, the top of the position-limiting pin 62 is not higher than the upper surface of the support frame 4, which is the first state at this time, and the hopper can be pushed into the support frame 4; when the position-limiting protrusion 621 is located in the second position-limiting groove 613, the top of the position-limiting pin 62 is higher than the upper end surface of the support frame 4, which is the second state at this time, and the hopper 2 will not slip Take out the support frame 4.

Further, a grasping groove 63 is provided around the limit hole 611 , so that the limit pin 62 can be adjusted by hand.

Further, the end faces of the first positioning rod 531 and the second positioning rod 532 abutting against the support frame 4 are provided with elastic pads 56 to prevent the first positioning rod 531 and the second positioning rod 532 from overturning and contacting the support frame 4 during long-term use. Collision causes positioning bar and support frame 4 to be damaged, prolongs service life.

Finally, the groove 41 is an arc-shaped round-mouth groove structure, and its length is greater than three-quarters of the length of the support frame 4. The arc-shaped round-mouth groove structure facilitates the movement of the roller seat 412, and the longer groove 41 is convenient to adapt to The jamming effect of the larger size hopper 2.

In the present invention, unless otherwise clearly specified and limited, a first feature being "on" or "under" a second feature may include direct contact between the first and second features, and may also include the first and second features Not in direct contact but through another characteristic contact between them. Moreover, "above", "above" and "above" the first feature on the second feature include that the first feature is directly above and obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature. "Below", "beneath" and "under" the first feature to the second feature include that the first feature is directly below and obliquely below the second feature, or simply means that the first feature has a lower level than the second feature.

The basic principles, main features and advantages of the present invention have been shown and described above. Those skilled in the art should understand that the present invention is not limited by the above-mentioned embodiments, and those described in the above-mentioned embodiments and description are only preferred examples of the present invention, and are not intended to limit the present invention, without departing from the spirit and scope of the present invention. Under the premise, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the claimed invention. The protection scope of the present invention is defined by the appended claims and their equivalents.

Claims (10)

1. A fork frame that can be equipped with a variety of hoppers for stable lifting, including a fork frame body (1) and a hopper (2), characterized in that: the fork frame body (1) includes a push handle frame (3) and two A support frame (4) arranged in parallel, the described support frame (3) is vertically arranged with the support frame (4), and the described support frame (4) is provided with a positioning device (5) near the push hand frame (3) side, A limiting device (6) is provided on the side far away from the push handle frame (3). The positioning device (5) is used to make the central positions of the outlets of hoppers (2) of different specifications consistent. The limiting device (6) Used to limit the hopper (2) on the support frame (4); Grooves (41) are provided on the tops of the support frames (4) of the two groups, and threaded rods (411) are movably arranged in the grooves (41) of each group, and the outer sides of the threaded rods (411) are sleeved There is a roller seat (412), the top of the roller seat (412) is fixedly connected with the threaded cylinder (413), the top of the threaded cylinder (413) is fixedly connected with an adjustment frame (42), and the adjustment frame (42 ) is provided with a driving rod (421) movable inside, and the end of the driving rod (421) is fixed in contact with the hopper (2) through a suction cup (423); The positioning device (5) comprises a support (51), a rotary shaft (52) arranged on the support (51), and a positioning rod assembly (53) which is rotatably arranged on the rotary shaft (52). The positioning rod assembly (53) includes a first positioning rod (531) and a second positioning rod (532), and both are L-shaped rods; The limit device (6) includes a fixed block (61) and a limit pin (62) arranged at the end of the support frame (4), and the fixed block (61) is provided with a The limit hole (611), the two sides of the limit hole (611) are respectively provided with the first limit groove (612) and the second limit groove (613), the one side of the limit pin (62) A limiting protrusion (621) matching both the first limiting groove (612) and the second limiting groove (613) is provided. 2. A fork frame that can be equipped with various hoppers for stable lifting according to claim 1, characterized in that: a drive motor (43) is fixed at the bottom of the end of the two groups of support frames (4), and the drive motor The output end of (43) is fixedly connected with the threaded rod (411), and the middle part of the roller seat (412) is provided with a threaded structure suitable for the threaded rod (411), and the inside of the threaded cylinder (413) is connected with the threaded rod (411). The rotating shaft (414) is engaged and fixed, and the top middle part of the rotating shaft (414) is provided with a hole structure, and a rotating rod (415) is arranged in the hole structure, and the rotating rod (415) and the adjusting frame (42) The bottom end is movably connected through a bearing structure. 3. A fork frame that can be equipped with a variety of hoppers for stable lifting according to claim 1, characterized in that: the two sets of adjustment frames (42) have a radian greater than π/2, and there are slides in the middle slot (424), the drive rod (421) is clamped in the chute (424) by a nut whose diameter is greater than the width of the chute (424), and a handwheel ( 422). 4. A fork frame that can be equipped with a variety of hoppers for stable lifting according to claim 1, characterized in that: the positioning rod assembly (53) also includes a PTFE sleeve sleeved on the rotary shaft (52) (54), the PTFE sleeve (54) includes a sleeve part (541) and a limiting part (542), and one side of the support (51) is provided with a The limit slot (511), the first positioning rod (531) and the second positioning rod (532) are rotatably arranged on the tetrafluoro sleeve (54). 5. A fork frame that can be equipped with a variety of hoppers for stable lifting according to claim 1, characterized in that: the rotating shaft (52) includes a head (521) and a rod (522), and the rod The end of the part (522) away from the head (521) is provided with a threaded segment (523), and the threaded segment (523) is provided with a fixing nut (55). 6. A fork frame that can be equipped with a variety of hoppers for stable lifting according to claim 1, characterized in that: the upper end surface of the fixed block (61) is not higher than the upper end surface of the support frame (4), and the The depth of the first limiting groove (612) is greater than the depth of the second limiting groove (613), and when the limiting protrusion (621) is located in the first limiting groove (612), the limiting pin (62) The top of the stop pin (62) is not higher than the upper surface of the support frame (4). ) on the upper face. 7. A fork frame that can be equipped with various kinds of hoppers for stable lifting according to claim 1, characterized in that: the circumference of the limiting hole (611) is provided with a grasping groove (63). 8. A fork frame that can be equipped with a variety of hoppers for stable lifting according to claim 1, characterized in that: the first positioning rod (531) and the second positioning rod (532) are offset against the support frame (4) An elastic pad (56) is provided on the connected end face. 9. A fork frame that can be equipped with a variety of hoppers for stable lifting according to claim 1, characterized in that: the groove (41) is an arc-shaped circular groove structure, and its length is longer than that of the support frame (4) three quarters of the length. 10. A fork frame that can be equipped with a variety of hoppers for stable lifting according to claim 2, characterized in that: the two sets of driving motors (43) are motor structures, and one end of them is electrically connected to the car motor.

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