CN217808535U

CN217808535U - Supporting arm for lifting table

Info

Publication number: CN217808535U
Application number: CN202221244686.5U
Authority: CN
Inventors: 陈国儿
Original assignee: Ningbo Jingchi Power Machinery Co ltd
Current assignee: Ningbo Jingchi Power Machinery Co ltd
Priority date: 2022-05-23
Filing date: 2022-05-23
Publication date: 2022-11-15
Anticipated expiration: 2032-05-23

Abstract

The utility model discloses a support arm for elevating platform, including supporting platform, set up at the walking platform of supporting platform lower extreme and set up the crossing arm between supporting platform and walking platform. The walking platform is provided with a lifting component. The cross arm consists of a first supporting arm and a second supporting arm, and the limiting component consists of positioning parts, driving parts and hinged shafts, wherein the positioning parts are symmetrically arranged, and the driving parts drive the positioning parts to move. This a support arm for elevating platform can drive the gag lever post on the setting element and arrange spacing hole in through rotating the driving piece to inject the position of first support arm and second support arm, support the crossing arm, avoided supporting platform to receive great weight and make the crossing arm damage fall. Meanwhile, the motor can be prevented from being influenced by the external environment to rotate reversely, so that the supporting platform falls down, the height of the cross arm is limited by the limiting assembly, the supporting platform is prevented from falling down due to accidents, and the personal safety of workers is guaranteed.

Description

Supporting arm for lifting table

Technical Field

The utility model relates to a elevating platform technique especially relates to a support arm for elevating platform.

Background

The elevating platform has extensive application as a elevating gear in production, and the elevating platform among the prior art is mostly foldable, and it mainly includes: the folding arm that base, a plurality of parallelogram are constituteed, support in the walking board on folding arm top to and the hydraulic drive mechanism of the folding arm of drive, and this kind of elevating platform is owing to adopt a plurality of support arms as the support, receives external influence and when losing hydraulic pressure function when hydraulic drive mechanism, can lead to the support arm no longer to receive external force to support and fall down, has influenced work efficiency and staff and at the operation elevating platform during operation, has great potential safety hazard.

SUMMERY OF THE UTILITY MODEL

In order to solve the defects existing in the prior art, the utility model provides a support arm for elevating platform.

The technical scheme of the utility model is realized like this:

a support arm for a lift table, comprising:

the middle of the supporting platform is provided with a first fixing piece;

the walking platform is arranged at the lower end of the supporting platform, and a lifting assembly is arranged on the walking platform; and

the cross arm is arranged between the supporting platform and the walking platform and consists of a first supporting arm and a second supporting arm, the middle parts of the first supporting arm and the second supporting arm are hinged through a limiting component, the upper end of the first supporting arm is hinged with the supporting platform, the lower end of the first supporting arm is connected with the middle part of the walking platform, the upper end of the second supporting arm is connected with the middle part of the supporting platform, and the lower end of the second supporting arm is hinged with the walking platform,

spacing subassembly comprises setting element, the driving piece and the articulated shaft that the drive setting element removed that the symmetry set up, driving piece and setting element are installed on the articulated shaft, and the setting element is located the both ends of driving piece, the setting element is connected with crossing arm.

In the support arm for a lifting platform of the present invention, the lower end of the walking platform is provided with universal wheels.

The utility model discloses an among this kind of a support arm for elevating platform, be equipped with motor, second mounting, third mounting and fourth mounting among the lifting unit, the motor is installed on the third mounting, be equipped with a silk beam barrel on the motor, a silk beam barrel is located between third mounting and the fourth mounting, be equipped with the lead screw in the middle of the silk beam barrel, the one end of lead screw is located a silk beam barrel, and the other end is connected through articulated seat and the articulated of first support arm lower extreme.

The utility model discloses an among this kind of a support arm for elevating platform, first support arm lower extreme is connected with walking platform through first slider.

The utility model discloses an among this kind of a support arm for elevating platform, second support arm upper end is connected with supporting platform through the second slider.

The utility model discloses an among this kind of a support arm for elevating platform, be equipped with the first spacing arm and the spacing arm of second that the symmetry set up on the setting element, be equipped with the gag lever post on first spacing arm and the spacing arm of second, first spacing arm and first support arm contact, the spacing arm of second and the contact of second support arm, be equipped with on first support arm and the second support arm with gag lever post complex spacing hole.

The utility model discloses an among this kind of a support arm for elevating platform, be equipped with the spout on the articulated shaft, the centre of setting element is equipped with a mounting hole, be equipped with the bellying in the mounting hole, the bellying is placed in the spout.

The utility model discloses an in this kind of a support arm for elevating platform, be equipped with a round pin axle on the setting element, be equipped with the arc groove that the symmetry set up on the driving piece, the round pin axle is arranged in the arc groove.

In the support arm for a lifting table of the present invention, the driving member is further provided with a push block for rotating the driving member.

Implement the utility model discloses a this kind of a support arm for elevating platform has following beneficial effect: this a support arm for elevating platform can drive the gag lever post on the setting element and arrange spacing hole in through rotating the driving piece to injecing the position of first support arm and second support arm, supporting the cross arm, avoided supporting platform to receive great weight and make the cross arm damage fall. Meanwhile, the motor can be prevented from being influenced by the external environment to rotate reversely, so that the supporting platform falls down, the height of the cross arm is limited by the limiting assembly, the supporting platform is prevented from falling down due to accidents, and the personal safety of workers is guaranteed.

Drawings

Fig. 1 is a schematic view of a supporting arm structure for a lifting table according to the present invention;

FIG. 2 is a schematic view of the first support arm, the second support arm and the stop assembly shown in FIG. 1;

FIG. 3 is a schematic structural view of the stop assembly of FIG. 2;

fig. 4 is an exploded view of fig. 3.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention.

As shown in fig. 1 to 4, the supporting arm for a lifting platform of the present invention comprises a supporting platform 1, a walking platform 2 disposed at the lower end of the supporting platform 1, and a cross arm 3 disposed between the supporting platform 1 and the walking platform 2. Can be connected supporting platform 1 and walking platform 2 through crossing arm 3, drive supporting platform 1 through lifting unit 5 and up the lifting, can realize the lift.

The walking platform 2 is provided with a lifting component 5, and the lower end of the walking platform 2 is also provided with a universal wheel 6. The lifting component 5 is provided with a motor 7, a second fixing piece 8, a third fixing piece 9 and a fourth fixing piece 10. The motor 7 is installed on the third fixing piece 9, a screw shaft cylinder 11 is arranged on the motor 7, the screw shaft cylinder 11 is located between the third fixing piece 9 and the fourth fixing piece 10, a screw rod 12 is arranged in the middle of the screw shaft cylinder 11, one end of the screw rod 12 is located in the screw shaft cylinder 11, and the other end of the screw rod is hinged to the lower end of the first supporting arm 14 through a hinge base 13. Because the position of the screw shaft cylinder 11 is fixed and can only rotate, when the motor 7 drives the screw shaft cylinder 11 to rotate, the screw shaft cylinder 11 can drive the screw shaft 12 to move, so that the screw shaft 12 pushes the hinge base 13, and the lower end of the first support arm 14 is pushed to move.

The upper end of the first support arm 14 is connected to the first fixing member 15, and the lower end of the second support arm 16 is connected to the second fixing member 8.

The support platform 1 is provided with a first fixing member 15 in the middle. The cross arm 3 is composed of a first supporting arm 14 and a second supporting arm 16, and the first supporting arm 14 and the second supporting arm 16 are hinged through a limiting component 17. The upper end of the first supporting arm 14 is hinged with the supporting platform 1, the lower end of the first supporting arm is connected with the middle of the walking platform 2, the upper end of the second supporting arm 16 is connected with the middle of the supporting platform 1, and the lower end of the second supporting arm is hinged with the walking platform 2.

The lower end of the first supporting arm 14 is connected with the walking platform 2 through a first sliding block 18. The upper end of the second supporting arm 16 is connected with the supporting platform 1 through a second sliding block 19. Since one end of the first support arm 14 and the second support arm 16 is fixed, the other end can be moved by the first slider 18 or the second slider 19, so that the cross arm 3 is unfolded and the support platform 1 is pushed to be lifted upwards.

The position limiting assembly 17 is composed of a positioning member 20, a driving member 21 for driving the positioning member 20 to move, and a hinge shaft 22, which are symmetrically arranged. The driving member 21 and the positioning member 20 are installed on the hinge shaft 22 with the positioning members 20 located at both ends of the driving member 21, and the positioning members 20 are connected to the cross arm 3.

The positioning member 20 is provided with a first limiting arm 23 and a second limiting arm 24 which are symmetrically arranged, the first limiting arm 23 and the second limiting arm 24 are provided with limiting rods 25, the first limiting arm 23 is in contact with the first supporting arm 14, the second limiting arm 24 is in contact with the second supporting arm 16, and the first supporting arm 14 and the second supporting arm 16 are provided with limiting holes 26 matched with the limiting rods 25.

The hinge shaft 22 is provided with a sliding slot 27, the positioning member 20 is provided with a mounting hole 28 in the middle, the mounting hole 28 is provided with a boss 29, and the boss 29 is arranged in the sliding slot 27. A pin shaft 30 is arranged on the positioning member 20, arc grooves 31 are symmetrically arranged on the driving member 21, and the pin shaft 30 is positioned in the arc grooves 31. The driving member 21 is further provided with a push block 32 for rotating the driving member 21.

The driving member 21 is provided with a through hole 33 in the middle, the diameter of the through hole 33 is matched with the diameter of the outer ring of the positioning member 20, and the diameter of the mounting hole 28 is matched with the diameter of the hinge shaft 22.

When the motor 7 drives the cross arm 3 to rise to the highest position, the pushing block 32 can be pushed, the pushing block 32 drives the driving part 21 to rotate, the driving part 21 rotates around the hinge shaft 22, the pin shaft 30 on the positioning part 20 is driven through the arc groove 31, the pin shaft 30 moves in the arc groove 31, the positioning part 20 is limited by the protruding part 29, and therefore the positioning part cannot rotate and can only move along the direction of the sliding groove 27, the limiting rod 25 is inserted into the limiting hole 26, and the position of the cross arm 3 is limited.

The above description is only for the preferred embodiment of the present invention and should not be taken as limiting the invention, and any modifications, equivalent replacements and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A support arm for a lift table, comprising:

the middle of the supporting platform is provided with a first fixing piece;

2. A support arm for a lift table according to claim 1 wherein the lower end of the walking platform is provided with universal wheels.

3. The supporting arm for the lifting platform as claimed in claim 1, wherein a motor, a second fixing member, a third fixing member and a fourth fixing member are disposed in the lifting assembly, the motor is mounted on the third fixing member, a screw cylinder is disposed on the motor, the screw cylinder is disposed between the third fixing member and the fourth fixing member, a screw rod is disposed in the middle of the screw cylinder, one end of the screw rod is disposed in the screw cylinder, and the other end of the screw rod is hinged to the lower end of the first supporting arm through a hinge seat.

4. A support arm for a lifting platform according to claim 1, wherein the lower end of the first support arm is connected to a walking platform by a first slider.

5. A support arm for a lifting platform according to claim 1, wherein the upper end of the second support arm is connected to the support platform by a second slider.

6. A supporting arm for a lifting platform as claimed in claim 1, wherein the positioning member is provided with a first limiting arm and a second limiting arm which are symmetrically arranged, the first limiting arm and the second limiting arm are provided with limiting rods, the first limiting arm is in contact with the first supporting arm, the second limiting arm is in contact with the second supporting arm, and the first supporting arm and the second supporting arm are provided with limiting holes matched with the limiting rods.

7. A support arm for an elevating platform as set forth in claim 1, wherein said hinge shaft is provided with a sliding slot, said positioning member is provided with a mounting hole in the middle thereof, said mounting hole is provided with a protrusion, said protrusion is disposed in said sliding slot.

8. A support arm for a lift table as claimed in claim 1, wherein said locating member has a pin, said drive member has symmetrically disposed arcuate slots, and said pin is located in the arcuate slots.

9. The support arm for a lift table of claim 8, wherein the drive member further comprises a push block for rotating the drive member.