A pure electric off-road forklift anti-lifting and tipping telescopic arm

Abstract

The utility model relates to the technical field of hoisting telescopic arms, and in particular to a pure electric off-road forklift anti-hoisting tipping telescopic arm, which is convenient for detecting and adjusting the tilt angle of the forklift, and is convenient for adjusting the detection threshold; it includes a forklift body; it also includes an angle adjustment mechanism, two groups of first driving mechanisms, two groups of telescopic mechanisms, two groups of second driving mechanisms, a balance detection mechanism and an adjustment mechanism, the first driving mechanism is installed on the angle adjustment mechanism, the telescopic mechanism is installed on the first driving mechanism, the second driving mechanism is installed on the telescopic mechanism, the balance detection mechanism is installed on the angle adjustment mechanism, and the adjustment mechanism is installed on the balance detection mechanism, the first driving mechanism drives the angle adjustment mechanism to adjust the angle of the telescopic mechanism, the second driving mechanism drives the telescopic mechanism to extend and retract, the balance detection mechanism detects the direction of the forklift hoisting tilt, and the adjustment mechanism adjusts the detection threshold of the balance detection mechanism.

Description

Technical Field

[0001] The utility model relates to the technical field of hoisting telescopic arms, in particular to a hoisting and tipping-proof telescopic arm of a pure electric off-road forklift. Background Art

[0002] A pure electric off-road forklift is an electric forklift designed for operation in various harsh environments. When a pure electric off-road forklift is lifting goods, the shaking may cause the center of gravity to shift, resulting in the risk of tipping over.

[0003] Existing lifting telescopic arms, such as the prior art with application number CN201911371091.9, include a frame, a frame support, a rear axle, a rear axle support and a pin shaft sensor. The pressure of the forklift frame loaded on the rear axle is measured by the sensor, and the measured pressure value is transmitted to the forklift controller. The forklift controller compares the measured pressure value with a preset pressure value. If the measured pressure value is not greater than the preset pressure value, the protection measure is activated. If the measured pressure value is greater than the preset pressure value, the protection measure is not activated.

[0004] However, the prior art is not convenient for accurately adjusting the length and direction of the telescopic arm, and the prior art is not convenient for adjusting the threshold of the center of gravity offset. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a pure electric off-road forklift anti-lifting tipping telescopic arm which is convenient for detecting and adjusting the tilt angle of the forklift and convenient for adjusting the detection threshold.

[0006] The utility model discloses a telescopic arm for preventing a pure electric off-road forklift from tipping over during lifting, comprising a forklift body; further comprising an angle adjustment mechanism, two groups of first driving mechanisms, two groups of telescopic mechanisms, two groups of second driving mechanisms, a balance detection mechanism and an adjustment mechanism, wherein the first driving mechanism is mounted on the angle adjustment mechanism, the telescopic mechanism is mounted on the first driving mechanism, the second driving mechanism is mounted on the telescopic mechanism, the balance detection mechanism is mounted on the angle adjustment mechanism, and the adjustment mechanism is mounted on the balance detection mechanism, the angle of the telescopic mechanism is adjusted by driving the angle adjustment mechanism through the first driving mechanism, the telescopic mechanism is driven to be extended or retracted by the second driving mechanism, the balance detection mechanism detects the direction of the forklift lifting tilt, and the adjustment mechanism adjusts the detection threshold of the balance detection mechanism; the angle of the telescopic mechanism is adjusted by driving the angle adjustment mechanism through the first driving mechanism, the telescopic mechanism is driven to be extended or retracted by the second driving mechanism, the stability of the forklift lifting is improved, the balance detection mechanism detects the direction of the forklift lifting tilt, the detection threshold of the balance detection mechanism is adjusted by the adjustment mechanism, and the practicality is improved.

[0007] Preferably, the angle adjustment mechanism includes a forklift body, two mounting plates, two turntables, two rotating shafts and two fixed rings, the mounting plate is mounted on the side wall of the forklift body, the two turntables are rotatably mounted on the two mounting plates via two rotating shafts, the two fixed rings are mounted on the top ends of the two turntables, and the telescopic mechanism is mounted on the fixed rings; by opening the first driving mechanism to drive the rotating shaft to rotate, and then drive the fixed ring to rotate, the angle of the telescopic mechanism is adjusted to prevent the forklift from tilting during lifting.

[0008] Preferably, the first driving mechanism includes a driving box, a turbine, a worm gear and a first motor, the driving box is mounted on the bottom end of the mounting plate, the turbine is mounted on the rotating shaft, the worm gear is rotatably mounted on the inner wall of the driving box, the worm gear is meshed with the turbine, the first motor is mounted on the outer wall of the driving box, the output end of the first motor is connected to the worm gear, and the two first driving mechanisms are mounted on the bottom ends of the two mounting plates; the worm gear is driven to rotate by turning on the first motor, and then the rotating shaft is driven to rotate through the meshing relationship, and then the fixed ring is driven to rotate, so as to adjust the angle of the telescopic mechanism, thereby preventing the forklift from tilting during lifting.

[0009] Preferably, the telescopic mechanism includes a sliding sleeve, a sliding rod and a counterweight, the sliding sleeve is installed on a fixed ring, the sliding rod is slidably installed in the sliding sleeve, the counterweight is installed on the sliding rod, and the two telescopic mechanisms are installed on two fixed rings; by opening the second driving mechanism to drive the sliding rod to slide in the sliding sleeve, the position of the counterweight is adjusted to improve the stability of the forklift.

[0010] Preferably, the second driving mechanism includes a lead screw and a second motor, the lead screw is rotatably installed in the sliding sleeve, the lead screw is threadedly matched with the sliding rod, the second motor is installed on the side wall of the sliding sleeve, and the output end of the second motor is connected to the lead screw; by turning on the second motor to drive the lead screw to rotate, the sliding rod is driven to slide in the sliding sleeve due to the threaded relationship, and then the position of the counterweight block is adjusted to improve the stability of the forklift.

[0011] Preferably, the balance detection mechanism includes a detection cone, a gravity rope, a gravity block, a detection block and a plurality of proximity switches, the detection cone is installed in the forklift body, the gravity rope is installed at the top inside the detection cone, the gravity block is installed at the bottom end of the gravity rope, the detection block is installed on the gravity rope, and the proximity switch is installed on the adjustment mechanism; when the forklift tilts during lifting, the gravity rope is made perpendicular to the ground by the gravity of the gravity block, and then the gravity rope is tilted relative to the detection cone, so that the angle direction of the tilt is adjusted by the distance between the plurality of proximity switches and the detection block, thereby controlling the first drive mechanism and the second drive mechanism to make corresponding adjustments.

[0012] Preferably, the adjustment mechanism includes a threaded rod and a handle, the threaded rod is installed on the side wall of the detection cone barrel through a threaded relationship, the handle is installed on the outer end of the threaded rod, and the proximity switch is installed on the inner end of the threaded rod; when the forklift tilts during lifting, the gravity of the gravity block makes the gravity rope perpendicular to the ground, and then the gravity rope is tilted relative to the detection cone barrel, so that the angle direction of the tilt is adjusted by the distance between multiple proximity switches and the detection block, so as to control the first drive mechanism and the second drive mechanism to make corresponding adjustments, and the threaded rod is driven to rotate by turning the handle, and the external position of the proximity switch is adjusted due to the threaded relationship, thereby adjusting the threshold of the tilt detection.

[0013] Compared with the prior art, the utility model has the following beneficial effects: the first driving mechanism drives the angle adjustment mechanism to adjust the angle of the telescopic mechanism, the second driving mechanism drives the telescopic mechanism to extend and retract, thereby improving the stability of forklift lifting, the balance detection mechanism detects the direction of the forklift lifting tilt, and the detection threshold of the balance detection mechanism is adjusted by the adjustment mechanism, thereby improving practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a first axonometric structural schematic diagram of the utility model;

[0015] Figure 2 It is a second axonometric structural schematic diagram of the utility model;

[0016] Figure 3 It is a third axonometric structural schematic diagram of the utility model;

[0017] Figure 4 It is a front-view cross-sectional axonometric structural schematic diagram of the utility model;

[0018] Figure 5 It is a schematic diagram of the cross-sectional structure of the utility model when viewed from above;

[0019] Figure 6 It is a schematic diagram of the side-view cross-section axonometric structure of the utility model;

[0020] Markings in the attached drawings: 01, angle adjustment mechanism; 11, forklift body; 12, mounting plate; 13, turntable; 14, rotating shaft; 15, fixing ring; 02, first driving mechanism; 21, driving box; 22, turbine; 23, worm rod; 24, first motor; 03, telescopic mechanism; 31, sliding sleeve; 32, sliding rod; 33, counterweight; 04, second driving mechanism; 41, lead screw; 42, second motor; 05, balance detection mechanism; 51, detection cone barrel; 52, gravity rope; 53, gravity block; 54, detection block; 55, proximity switch; 06, adjustment mechanism; 61, threaded rod; 62, handle. DETAILED DESCRIPTION

[0021] In order to facilitate the understanding of the utility model, the utility model will be described more comprehensively below with reference to the relevant drawings. The utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and comprehensive. Example

[0022] like Figure 2 , Figure 3 , Figure 5 and Figure 6 As shown, a pure electric off-road forklift anti-lifting tipping telescopic arm includes a forklift body 11, an angle adjustment mechanism 01, two sets of first drive mechanisms 02, two sets of telescopic mechanisms 03, two sets of second drive mechanisms 04, a balance detection mechanism 05 and an adjustment mechanism 06, wherein the first drive mechanism 02 is mounted on the angle adjustment mechanism 01, the telescopic mechanism 03 is mounted on the first drive mechanism 02, the second drive mechanism 04 is mounted on the telescopic mechanism 03, the balance detection mechanism 05 is mounted on the angle adjustment mechanism 01, and the adjustment mechanism 06 is mounted on the balance detection mechanism 05;

[0023] The first driving mechanism 02 drives the angle adjustment mechanism 01 to adjust the angle of the telescopic mechanism 03, the second driving mechanism 04 drives the telescopic mechanism 03 to extend and retract, the balance detection mechanism 05 detects the direction of the forklift hoisting tilt, and the adjustment mechanism 06 adjusts the detection threshold of the balance detection mechanism 05;

[0024] The angle adjustment mechanism 01 includes a forklift body 11, two mounting plates 12, two rotating discs 13, two rotating shafts 14 and two fixing rings 15. The mounting plate 12 is mounted on the side wall of the forklift body 11. The two rotating discs 13 are rotatably mounted on the two mounting plates 12 through the two rotating shafts 14. The two fixing rings 15 are mounted on the top ends of the two rotating discs 13. The telescopic mechanism 03 is mounted on the fixing rings 15.

[0025] The first driving mechanism 02 includes a driving box 21, a turbine 22, a worm 23 and a first motor 24. The driving box 21 is mounted on the bottom end of the mounting plate 12, the turbine 22 is mounted on the rotating shaft 14, the worm 23 is rotatably mounted on the inner wall of the driving box 21, the worm 23 is meshed with the turbine 22, the first motor 24 is mounted on the outer wall of the driving box 21, the output end of the first motor 24 is connected to the worm 23, and two first driving mechanisms 02 are mounted on the bottom ends of the two mounting plates 12;

[0026] The telescopic mechanism 03 includes a sliding sleeve 31, a sliding rod 32 and a counterweight 33. The sliding sleeve 31 is mounted on the fixed ring 15. The sliding rod 32 is slidably mounted in the sliding sleeve 31. The counterweight 33 is mounted on the sliding rod 32. Two telescopic mechanisms 03 are mounted on two fixed rings 15.

[0027] The second driving mechanism 04 includes a lead screw 41 and a second motor 42. The lead screw 41 is rotatably mounted in the sliding sleeve 31. The lead screw 41 is threadedly engaged with the sliding rod 32. The second motor 42 is mounted on the side wall of the sliding sleeve 31. The output end of the second motor 42 is connected to the lead screw 41.

[0028] By turning on the first motor 24, the worm gear 23 is driven to rotate, and then the rotating shaft 14 is driven to rotate through the meshing relationship, and then the fixed ring 15 is driven to rotate, so as to adjust the angle of the telescopic mechanism 03, thereby preventing the forklift from tilting. By turning on the second motor 42, the lead screw 41 is driven to rotate, and the sliding rod 32 is driven to slide in the sliding sleeve 31 due to the threaded relationship, and then the position of the counterweight block 33 is adjusted to improve the stability of the forklift. The balance detection mechanism 05 detects the direction of the forklift tilting, and the detection threshold of the balance detection mechanism 05 is adjusted by the adjustment mechanism 06 to improve practicality. Example

[0029] like Figure 4 As shown, a pure electric off-road forklift anti-lifting tipping telescopic arm includes a forklift body 11, an angle adjustment mechanism 01, two sets of first drive mechanisms 02, two sets of telescopic mechanisms 03, two sets of second drive mechanisms 04, a balance detection mechanism 05 and an adjustment mechanism 06, wherein the first drive mechanism 02 is mounted on the angle adjustment mechanism 01, the telescopic mechanism 03 is mounted on the first drive mechanism 02, the second drive mechanism 04 is mounted on the telescopic mechanism 03, the balance detection mechanism 05 is mounted on the angle adjustment mechanism 01, and the adjustment mechanism 06 is mounted on the balance detection mechanism 05;

[0030] The first driving mechanism 02 drives the angle adjustment mechanism 01 to adjust the angle of the telescopic mechanism 03, the second driving mechanism 04 drives the telescopic mechanism 03 to extend and retract, the balance detection mechanism 05 detects the direction of the forklift hoisting tilt, and the adjustment mechanism 06 adjusts the detection threshold of the balance detection mechanism 05;

[0031] The balance detection mechanism 05 includes a detection cone barrel 51, a gravity rope 52, a gravity block 53, a detection block 54 and a plurality of proximity switches 55. The detection cone barrel 51 is installed in the forklift body 11, the gravity rope 52 is installed at the top of the detection cone barrel 51, the gravity block 53 is installed at the bottom of the gravity rope 52, the detection block 54 is installed on the gravity rope 52, and the proximity switch 55 is installed on the adjustment mechanism 06;

[0032] The adjustment mechanism 06 includes a threaded rod 61 and a handle 62. The threaded rod 61 is installed on the side wall of the detection cone barrel 51 through a threaded relationship. The handle 62 is installed on the outer end of the threaded rod 61. The proximity switch 55 is installed on the inner end of the threaded rod 61.

[0033] The angle of the telescopic mechanism 03 is adjusted by driving the angle adjustment mechanism 01 through the first driving mechanism 02, and the telescopic mechanism 03 is extended and retracted by the second driving mechanism 04, so as to improve the stability of the forklift lifting. When the forklift tilts during lifting, the gravity of the gravity block 53 makes the gravity rope 52 perpendicular to the ground, and then the gravity rope 52 is tilted relative to the detection cone barrel 51, so that the angle direction of the tilt is adjusted by the distance between multiple proximity switches 55 and the detection block 54, so as to control the first driving mechanism 02 and the second driving mechanism 04 to make corresponding adjustments, and the threaded rod 61 is driven to rotate by turning the handle 62. Due to the threaded relationship, the external position of the proximity switch 55 is adjusted, and the threshold of the tilt detection is adjusted.

[0034] like Figures 1 to 6 As shown, the utility model is a pure electric off-road forklift anti-lifting tipping telescopic arm. When working, the worm rod 23 is driven to rotate by turning on the first motor 24, and then the rotating shaft 14 is driven to rotate through the meshing relationship, and then the fixed ring 15 is driven to rotate, so as to adjust the angle of the telescopic mechanism 03, so as to prevent the forklift from tilting during lifting. The lead screw 41 is driven to rotate by turning on the second motor 42, and the sliding rod 32 is driven to slide in the sliding sleeve 31 due to the threaded relationship, so as to adjust the position of the counterweight block 33, so as to improve the stability of the forklift. When the forklift tilts during lifting, the gravity of the gravity block 53 makes the gravity rope 52 perpendicular to the ground, so as to make the gravity rope 52 tilt relative to the detection cone barrel 51, so as to adjust the angle direction of the tilt through the distance between the plurality of proximity switches 55 and the detection block 54, so as to control the first drive mechanism 02 and the second drive mechanism 04 to make corresponding adjustments, and the threaded rod 61 is driven to rotate by turning the handle 62, and the external position of the proximity switch 55 is adjusted due to the threaded relationship, so as to adjust the threshold of the tilt detection.

[0035] The first motor 24, the second motor 42, the detection block 54 and the proximity switch 55 of the utility model are purchased on the market, and technicians in the industry only need to install and operate them according to the accompanying instruction manuals without the need for creative work by technicians in this field.

[0036] The main functions realized by the utility model are: in the process of hoisting the telescopic arm, it is convenient to detect and adjust the tilt angle of the forklift, and it is convenient to adjust the detection threshold.

[0037] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A pure electric off-road forklift anti-lifting tipping telescopic arm, comprising a forklift body (11); characterized in that: It also comprises an angle adjustment mechanism (01), two groups of first drive mechanisms (02), two groups of telescopic mechanisms (03), two groups of second drive mechanisms (04), a balance detection mechanism (05) and an adjustment mechanism (06), wherein the first drive mechanism (02) is mounted on the angle adjustment mechanism (01), the telescopic mechanism (03) is mounted on the first drive mechanism (02), the second drive mechanism (04) is mounted on the telescopic mechanism (03), the balance detection mechanism (05) is mounted on the angle adjustment mechanism (01), and the adjustment mechanism (06) is mounted on the balance detection mechanism (05); The first driving mechanism (02) drives the angle adjustment mechanism (01) to adjust the angle of the telescopic mechanism (03), the second driving mechanism (04) drives the telescopic mechanism (03) to extend and retract, the balance detection mechanism (05) detects the direction of the forklift lifting tilt, and the adjustment mechanism (06) adjusts the detection threshold of the balance detection mechanism (05).

2. The anti-lifting and tipping telescopic arm of a pure electric off-road forklift according to claim 1, characterized in that: The angle adjustment mechanism (01) comprises a forklift body (11), two mounting plates (12), two rotating discs (13), two rotating shafts (14) and two fixing rings (15); the mounting plate (12) is mounted on the side wall of the forklift body (11); the two rotating discs (13) are rotatably mounted on the two mounting plates (12) via the two rotating shafts (14); the two fixing rings (15) are mounted on the top ends of the two rotating discs (13); and the telescopic mechanism (03) is mounted on the fixing rings (15).

3. The anti-lifting and tipping telescopic arm of a pure electric off-road forklift according to claim 2, characterized in that: The first driving mechanism (02) comprises a driving box (21), a turbine (22), a worm rod (23) and a first motor (24); the driving box (21) is mounted on the bottom end of the mounting plate (12); the turbine (22) is mounted on the rotating shaft (14); the worm rod (23) is rotatably mounted on the inner wall of the driving box (21); the worm rod (23) is meshed with the turbine (22); the first motor (24) is mounted on the outer wall of the driving box (21); the output end of the first motor (24) is connected to the worm rod (23); and the two first driving mechanisms (02) are mounted on the bottom ends of the two mounting plates (12).

4. The anti-lifting and tipping telescopic arm of a pure electric off-road forklift according to claim 2, characterized in that: The telescopic mechanism (03) comprises a sliding sleeve (31), a sliding rod (32) and a counterweight (33); the sliding sleeve (31) is mounted on a fixed ring (15); the sliding rod (32) is slidably mounted in the sliding sleeve (31); the counterweight (33) is mounted on the sliding rod (32); and the two telescopic mechanisms (03) are mounted on two fixed rings (15).

5. The anti-lifting and tipping telescopic arm of a pure electric off-road forklift according to claim 4, characterized in that: The second driving mechanism (04) comprises a lead screw (41) and a second motor (42); the lead screw (41) is rotatably mounted in the sliding sleeve (31); the lead screw (41) and the sliding rod (32) are threadedly engaged; the second motor (42) is mounted on a side wall of the sliding sleeve (31); and an output end of the second motor (42) is connected to the lead screw (41).

6. The anti-lifting and tipping telescopic arm of a pure electric off-road forklift according to claim 2, characterized in that: The balance detection mechanism (05) comprises a detection cone barrel (51), a gravity rope (52), a gravity block (53), a detection block (54) and a plurality of proximity switches (55); the detection cone barrel (51) is installed in the forklift body (11); the gravity rope (52) is installed at the top end of the detection cone barrel (51); the gravity block (53) is installed at the bottom end of the gravity rope (52); the detection block (54) is installed on the gravity rope (52); and the proximity switch (55) is installed on the adjustment mechanism (06).

7. The anti-lifting and tipping telescopic arm of a pure electric off-road forklift according to claim 6, characterized in that: The adjustment mechanism (06) comprises a threaded rod (61) and a handle (62). The threaded rod (61) is mounted on the side wall of the detection cone barrel (51) through a threaded relationship. The handle (62) is mounted on the outer end of the threaded rod (61). The proximity switch (55) is mounted on the inner end of the threaded rod (61).

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