CN220790508U

CN220790508U - Work foot rest convenient to extension is risen

Info

Publication number: CN220790508U
Application number: CN202322388847.9U
Authority: CN
Inventors: 徐国路
Original assignee: Individual
Current assignee: Individual
Priority date: 2023-09-04
Filing date: 2023-09-04
Publication date: 2024-04-16
Anticipated expiration: 2033-09-04

Abstract

The utility model relates to the technical field of work foot frames, in particular to a work foot frame convenient to extend and lift, which comprises two supporting legs and screw rod elevators fixedly arranged on the supporting legs, wherein a pedal capable of extending is fixedly connected to the lifting ends of the screw rods of the two screw rod elevators, a connecting rod capable of extending axially is coaxially connected to a transmission shaft on one side of the two screw rod elevators opposite to the transmission shaft, one end of the transmission shaft away from the connecting rod is fixedly connected with a first hand wheel, and a driving mechanism for driving the pedal to extend is arranged below the connecting rod and between the two supporting legs. The utility model can reduce and prolong the volume of the tripod by arranging the extendable pedal and the driving mechanism for driving the pedal to extend, and is convenient to carry.

Description

Work foot rest convenient to extension is risen

Technical Field

The utility model relates to the technical field of work foot frames, in particular to a work foot frame convenient to extend and lift.

Background

The scaffold is also called a tool type scaffold, and is a working platform which is erected for ensuring that each construction process is carried out smoothly.

At present, interior decoration generally carries out putty coating or wallboard mounting operation on walls and roofs, and because the height of a house layer is generally about 2.8m, when decoration operation is carried out by decoration personnel, the scaffold is generally carried by the decoration personnel due to height limitation, but most of scaffolds on the market are relatively inconvenient to move, disassemble and assemble or carry at present, and the height of the scaffold is usually fixed and not adjustable, so that the scaffold meeting the requirements is inconvenient to bring into a room due to overlarge volume, and therefore, the scaffold which is small in volume and can be prolonged and lifted is required to solve the problem.

Disclosure of Invention

The utility model aims to provide a work foot rest convenient to extend and raise, which can be carried into a room for extending and raising in a reduced volume, and is convenient for construction work of decoration staff.

The above object of the present utility model is achieved by the following technical solutions: the utility model provides a worker foot rest convenient to extension is risen, includes two supporting legs that the symmetry set up, and set firmly in lead screw lift on the supporting leg, two fixedly connected with can prolong footboard on the lead screw lift's the lead screw lift, and coaxial coupling has a connecting rod that can axially stretch out and draw back on the transmission shaft of two lead screw lifts opposite sides, this transmission shaft is kept away from the one end fixedly connected with first hand wheel of connecting rod, the below of connecting rod just is located be provided with between two supporting legs and be used for the drive the footboard carries out the actuating mechanism that lengthens.

Optionally, the footboard comprises board a and board b, board a with board b all is comb shape, and board a and board b insert the combination mutually and mutually sliding fit, the adjacent one end on board a and board b its bottom surface all fixedly connected with spacing branch, and the opposite one end on board a and the board b all fixedly connected with push away the handle.

Optionally, the connecting rod comprises outer pole and interior pole, interior pole inserts and locates the inside of outer pole and rather than sliding fit, and the outside of outer pole has seted up rectangular waist groove along its length direction, the outside spiro union of the one end that is located the outer pole inside on the interior pole has the spacing post that stretches out rectangular waist groove, this spacing post can follow this rectangular waist groove and remove.

Optionally, actuating mechanism includes the inner tube and the outer tube on the inner tube is located to movable sleeve, the inner tube with opposite one end on the outer tube is fixedly connected with one respectively the supporting leg, the mouth of pipe one side cutting of outer tube has the opening, and this open-ended outer end is equipped with the gear box that fixedly connects mutually with the outer tube, rotate in the gear box and be equipped with and stretch into this open-ended turbine, the outside of inner tube along its length direction seted up with the tooth that the turbine engaged with, and still rotate in the gear box be equipped with worm that the turbine engaged with, the one end of worm stretches out the gear box and fixedly connected with second hand wheel.

Optionally, the supporting leg is the font, and the bottom surface both ends fixedly connected with universal castor of supporting leg.

Compared with the prior art, the utility model provides the work foot rest convenient for extending and lifting, which has the following beneficial effects:

the utility model can reduce and prolong the volume of the scaffold by arranging the extendable pedal and the driving mechanism for driving the pedal to extend, is convenient to carry, and can also lift the pedal after extension by arranging the connecting rod on the transmission shafts of the two screw rod lifters, thereby being convenient for construction operation of decoration staff and solving the problem that the scaffold proposed in the background art is inconvenient to bring into a room due to overlarge volume.

Drawings

FIG. 1 is a schematic view of the overall structure of the present utility model;

FIG. 2 is a schematic view of the structure of the present utility model in the extended and raised state;

fig. 3 is an exploded view of the overall structure of the present utility model.

In the figure: 1. support legs; 2. a screw rod lifter; 3. a pedal; 301. a plate a; 302. a plate b; 303. limiting support strips; 304. pushing the handle; 4. a connecting rod; 401. an outer rod; 402. an inner rod; 403. a long waist groove; 404. a limit column; 5. a first hand wheel; 6. a driving mechanism; 601. an inner tube; 602. an outer tube; 603. a gear box; 604. a turbine; 605. teeth; 606. a worm; 607. the second hand wheel; 7. universal castor.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Examples: referring to fig. 1 to 3, a work stand convenient for extending and lifting comprises two symmetrically arranged supporting legs 1 and screw rod lifters 2 fixedly arranged on the supporting legs 1, wherein the supporting legs 1 are shaped like Chinese character 'ri', universal casters 7 are fixedly connected to two ends of the bottom surface of the supporting legs 1, a pedal 3 capable of extending is fixedly connected to the rising ends of the screw rods of the two screw rod lifters 2, the pedal 3 consists of a plate a301 and a plate b302, the plate a301 and the plate b302 are comb-shaped, the plate a301 and the plate b302 are combined in an inserting way and are mutually matched in a sliding way, a limiting supporting strip 303 is fixedly connected to the bottom surface of one end of the plate a301 close to the bottom surface of the plate b302, a push-pull hand 304 is fixedly connected to the opposite end of the plate a301 and the plate b302,

the universal castor 7 is a castor with fixed feet, the rising ends of the screw rods of the two screw rod lifters 2 are fixedly connected with a flange plate through a key pin, the flange plate is fixedly connected with the plate a301 and the plate b302 through bolts, after the plate a301 and the plate b302 are combined, a limit supporting strip 303 fixed on the bottom surface of the plate a301 through bolts is in sliding fit with the bottom surface of the plate b302, and a limit supporting strip 303 fixed on the bottom surface of the plate b302 through bolts is in sliding fit with the bottom surface of the plate a301, so that the pedal 3 can be limited and supported after being prolonged through the limit supporting strip 303, and personnel are prevented from collapsing when stepping on the pedal 3;

a connecting rod 4 which can axially stretch out and draw back is coaxially connected on a transmission shaft at one side of the two screw rod lifters 2 opposite to each other, the connecting rod 4 consists of an outer rod 401 and an inner rod 402, the inner rod 402 is inserted into the outer rod 401 and is in sliding fit with the outer rod 401, a long-strip waist groove 403 is formed in the outer side of the outer rod 401 along the length direction of the outer rod, a limit column 404 extending out of the long-strip waist groove 403 is screwed on the outer side of one end of the inner rod 402, which is positioned in the outer rod 401, the limit column 404 can move along the long-strip waist groove 403, a first hand wheel 5 is fixedly connected at one end of the transmission shaft far away from the connecting rod 4,

the outer rod 401 and the inner rod 402 are fixedly connected with a transmission shaft on the screw rod lifter 2 through a key pin, the screw rod lifter 2 adopts an SWL hand-operated lifter, the screw rod lifter 2 is composed of a worm wheel and a lifting screw rod, a hand wheel drives the transmission shaft on the worm to rotate, the worm wheel is rotated by utilizing the transmission of the worm wheel and the worm, the worm wheel is provided with an internal trapezoidal thread and is matched with the lifting screw rod, the worm wheel rotates to drive the lifting screw rod to axially move, therefore, when a first hand wheel 5 on one screw rod lifter 2 is arbitrarily rocked, the transmission shaft on the screw rod lifter 2 can be coaxially connected with the transmission shaft of the other screw rod lifter 2 through a connecting rod 4 to synchronously rotate, and when the transmission shafts of the two screw rod lifters 2 synchronously rotate, the lifting screw rod can drive a pedal 3 to ascend or descend;

a driving mechanism 6 for driving the pedal 3 to extend is arranged below the connecting rod 4 and between the two supporting legs 1, the driving mechanism 6 comprises an inner pipe 601 and an outer pipe 602 movably sleeved on the inner pipe 601, one end of the inner pipe 601 opposite to the outer pipe 602 is fixedly connected with one supporting leg 1 respectively, one side of a pipe orifice of the outer pipe 602 is cut with an opening, the outer end of the opening is provided with a gear box 603 fixedly connected with the outer pipe 602, a turbine 604 extending into the opening is rotationally arranged in the gear box 603, teeth 605 meshed with the turbine 604 are arranged on the outer side of the inner pipe 601 along the length direction of the inner pipe, a worm 606 meshed with the turbine 604 is rotationally arranged in the gear box 603, one end of the worm 606 extends out of the gear box 603 and is fixedly connected with a second hand wheel 607,

the worm 606 can drive the worm wheel 604 to engage the tooth 605 and move along the length direction of the inner tube 601, so when the second hand wheel 607 is rocked, the outer tube 602 can move back and forth along the inner tube 601, the moving outer tube 602 can enable the two support legs 1 to be close to and far away from each other, when the two support legs 1 are far away from each other, the pedal 3 can be prolonged, the inner rod 402 can slide along the outer rod 401 and is limited by the limiting post 404 positioned in the long waist groove 403, and when the two support legs 1 are close to each other, the volume of the utility model can be reduced, so that the utility model is convenient to carry into the room for construction operation in the use process.

Working principle: the utility model can push the push handle 304 to move and carry when in use, when the push handle is moved to an indoor place and needs construction operation, the pedal 3 can be lifted by shaking the first hand wheel 5, if the pedal 3 needs to be prolonged, the second hand wheel 607 can be shaken, after the pedal 3 is prolonged to the length required by a constructor, the support leg 1 is fixed by screwing the fixing foot on the universal castor 7, and the utility model is worth noting that after the push handle is lifted, the constructor can set up on the push handle 304 to fix and climb by purchasing the telescopic ladder with a hook, and the telescopic ladder can be placed on the pedal 3 when in carrying.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises an element.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a worker foot rest convenient to extension is risen, includes two supporting legs (1) that the symmetry set up, and set firmly in lead screw lift (2) on supporting leg (1), its characterized in that: two lead screw lifts (2) lead screw lift end on fixedly connected with footboard (3) that can prolong, and coaxial coupling has a connecting rod (4) that can axial flexible on the transmission shaft of two lead screw lifts (2) opposite sides, this transmission shaft keep away from one end fixedly connected with first hand wheel (5) of connecting rod (4), the below of connecting rod (4) just is located between two supporting legs (1) is provided with and is used for driving footboard (3) carry out actuating mechanism (6) that lengthen.

2. A tripod convenient for extension and raising as defined in claim 1, wherein: the pedal (3) is composed of a plate a (301) and a plate b (302), the plate a (301) and the plate b (302) are comb-shaped, the plate a (301) and the plate b (302) are combined in an inserting mode and are in sliding fit with each other, limiting support strips (303) are fixedly connected to the bottom surfaces of one ends, close to each other, of the plate a (301) and the plate b (302), and push-pull hands (304) are fixedly connected to the opposite ends of the plate a (301) and the plate b (302).

3. A tripod convenient for extension and raising as defined in claim 1, wherein: the connecting rod (4) comprises outer pole (401) and interior pole (402), interior pole (402) are inserted and are located the inside of outer pole (401) and rather than sliding fit, and rectangular waist groove (403) have been seted up in the outside of outer pole (401) along its length direction, its outside spiro union of one end that is located the inside of outer pole (401) on interior pole (402) has and stretches out spacing post (404) of rectangular waist groove (403), this spacing post (404) can follow this rectangular waist groove (403) and remove.

4. A tripod convenient for extension and raising as defined in claim 1, wherein: the driving mechanism (6) comprises an inner tube (601) and an outer tube (602) movably sleeved on the inner tube (601), wherein one end, opposite to the inner tube (601), of the outer tube (602) is fixedly connected with one supporting leg (1) respectively, an opening is formed in one side of a tube opening of the outer tube (602), a gear box (603) fixedly connected with the outer tube (602) is arranged at the outer end of the opening, a turbine (604) extending into the opening is rotationally arranged in the gear box (603), teeth (605) meshed with the turbine (604) are formed in the outer side of the inner tube (601) along the length direction of the inner tube, a worm (606) meshed with the turbine (604) is rotationally arranged in the gear box (603), and one end of the worm (606) extends out of the gear box (603) and is fixedly connected with a second hand wheel (607).

5. A tripod convenient for extension and raising as defined in claim 1, wherein: the supporting legs (1) are in a shape like Chinese character 'ji', and universal casters (7) are fixedly connected to two ends of the bottom surface of the supporting legs (1).