CN213428973U

CN213428973U - Portable folding easel

Info

Publication number: CN213428973U
Application number: CN202021116519.3U
Authority: CN
Inventors: 朱贵州
Original assignee: Beijing Zhonghuitong Culture Transmit Co ltd
Current assignee: Beijing Zhonghuitong Culture Transmit Co ltd
Priority date: 2020-06-16
Filing date: 2020-06-16
Publication date: 2021-06-15
Anticipated expiration: 2030-06-16

Abstract

A portable folding easel comprises a supporting round rod, wherein a U-shaped upper rod, a front rod and a rear rod are arranged between two ends of the supporting round rod; the two ends of the supporting round rod are symmetrically provided with first joints; the first joint is fixedly connected with a first cylinder; two ends of the upper rod are respectively fixed in the two first cylinders; the outer end of each first joint is provided with a second joint, the side surface of each second joint is provided with a second cylinder, and two end parts of the front rod are respectively fixed in the two second cylinders; the two sides of the bottom end of the front rod are provided with walking wheels; a third joint is arranged between the first joint and the second joint, a third cylinder is arranged on the side surface of the third joint, and two end parts of the rear rod are respectively fixed in the two third cylinders. The utility model has convenient operation, various functions, small occupied space for indoor use, complete storage functions and convenient teaching management; the multifunctional student desk is small in structure, convenient to carry, convenient for students to take pictures and take examinations, free of obstacles in the whole process of taking trains, airplanes and buses, and capable of meeting use requirements of various functional environments.

Description

Portable folding easel

Technical Field

The utility model relates to an art painting uses technical field, in particular to portable folding easel.

Background

The existing pencil boxes, color palettes, drawing boards, easels and the like for art learning, sketching and examination are scattered single-function products, cannot be used in combination in the art learning application process, and can only be used in a scattered state. The functional requirements can not be met during the use process, and the human engineering is not met. In addition, because the pencil box, the color box, the drawing board, the easel and the like are not matched, more ground space is occupied in the learning process, and the learning environment is disordered. Especially when students go out to paint from life and take art examinations, the pencil boxes, the color boxes, the drawing boards, the easels and the like are all non-matched scattered single bodies, and the examinees can only bind the objects on the pencil boxes by using a shopping small trailer or carry the art articles by using other non-special tool cases. The process is not only complicated and messy, but also inconvenient for outdoor sketching and examination use.

SUMMERY OF THE UTILITY MODEL

For overcoming the deficiencies of the prior art, the utility model provides a portable folding easel, which has the advantages of small structure, convenient operation, convenient carrying and various functions.

In order to achieve the purpose, the utility model adopts the following technical proposal:

a portable folding easel comprises a supporting round rod, wherein a U-shaped upper rod, a front rod and a rear rod are arranged between two ends of the supporting round rod; the surface of the supporting round rod is provided with a plurality of positioning grooves arranged along the length direction of the supporting round rod, and the center of the supporting round rod is provided with a positioning screw hole parallel to the positioning grooves;

the two ends of the supporting round rod are symmetrically provided with first joints; the first joint comprises positioning strips corresponding to the positioning grooves, and each positioning strip is positioned in the corresponding positioning groove; one end of each positioning strip is fixed at the inner side edge of the first disc, and the other end of each positioning strip is fixed in the first ring body; a first through hole corresponding to the positioning screw hole is arranged at the center of the first disc; the outer side surface of the first ring body is fixedly connected with a first cylinder; two ends of the upper rod are respectively fixed in the two first cylinders; an L-shaped placing part for placing a drawing board is arranged at the joint of the first barrel and the first ring body;

the outer end of each first joint is provided with a second joint, and each second joint comprises a second ring body and a second disc fixed on the outer side of the second ring body; a first ring groove is formed in the side face, facing the first ring body, of the second ring body, and a plurality of limiting blocks are arranged in the first ring groove and divide the first ring groove into limiting ring grooves with different arc lengths; a second through hole corresponding to the positioning screw hole is arranged at the center of the second disc; a third disc is arranged at the inner side of the second through hole, and a third through hole corresponding to the positioning screw hole is formed in the center of the third disc; a second ring groove is formed between the third disc and the inner surface of the second ring body, and a stop block is arranged in the second ring groove; the outer ends of the first disk and each positioning strip are positioned in the second ring body, and the first disk and the third disk are tightly attached; the first disc is provided with a first guide block extending into the second ring groove; a fastening bolt is arranged on the outer side of the second disc, a knob is arranged at the outer end of the fastening bolt, and the inner end of the fastening bolt penetrates through the second through hole, the third through hole and the first through hole in sequence and then is fixed with the positioning screw hole; the side surface of the second ring body is provided with a second cylinder body, and two end parts of the front rod are respectively fixed in the two second cylinder bodies; the two sides of the bottom end of the front rod are provided with walking wheels;

a third joint is arranged between the first joint and the second joint and comprises a third ring body; the third ring body is sleeved on the periphery of each positioning strip and can rotate by taking the axis of the positioning screw hole as a shaft; the side surface of the third ring body facing the second ring body is provided with a second guide block extending into the limit ring groove; the side surface of the third ring body is provided with a third cylinder, and two ends of the rear rod are respectively fixed in the two third cylinders.

Furthermore, first positioning bulges which are circumferentially arranged are arranged on the outer side of the first disc, and each first positioning bulge forms a wavy first positioning surface; the side face of the third disc opposite to the first disc is provided with second positioning bulges which are arranged circumferentially, and each second positioning bulge forms a wavy second positioning surface.

In one embodiment, a platform clamping block is arranged on the side surface of the second cylinder body, the platform clamping block is provided with clamping grooves, the openings of the two clamping grooves are opposite, and a platform plate is arranged between the two clamping grooves; and an upper baffle corresponding to the platform clamping block is arranged on the side surface of the third cylinder and abuts against the top surface of the platform plate.

In one embodiment, the platform board has a storage bag attached thereto.

In one embodiment, the rear rod is provided with a backpack, and the top of the backpack is fixedly connected with the middle part of the supporting round rod.

In one embodiment, a foot pad is arranged in the middle of the bottom of the rear rod.

The utility model has the advantages that: the utility model has convenient operation, various functions, small occupied space for indoor use, complete storage function and convenient teaching management; the multifunctional student desk is small in structure, convenient to carry, convenient for students to take pictures and take examinations, free of obstacles in the whole process of taking trains, airplanes and buses, and capable of meeting use requirements of various functional environments.

Drawings

Fig. 1 is a schematic structural diagram of the portable folding easel of the utility model.

Fig. 2 is a schematic structural diagram of the first joint of the portable folding easel of the present invention.

Fig. 3 is a schematic structural diagram of the second joint of the portable folding easel of the present invention.

Fig. 4 is a schematic structural view of the third joint of the portable folding easel of the present invention.

Fig. 5 is a schematic connection diagram of the first joint, the second joint and the third joint of the portable folding easel of the present invention.

Fig. 6 is a schematic view of the folding state of the portable folding easel of the present invention.

Fig. 7 is a drawing state diagram of the portable folding easel of the present invention.

Fig. 8 is a schematic structural view of the portable foldable painting frame with a platform plate of the present invention.

Fig. 9 is a schematic structural view of the portable folding easel with the platform board and the storage bag of the utility model.

Fig. 10 is a schematic structural view of the portable folding picture frame with backpack of the present invention.

Fig. 11 is a schematic structural view of the portable folding easel with the platform plate, the storage bag and the backpack.

Detailed Description

The invention is further illustrated by the following figures and examples.

As shown in figure 1, the utility model provides a portable folding easel, which comprises a supporting round bar 1, an upper bar 2, a front bar 3 and a rear bar 4 which are provided with U-shaped parts between the two ends of the supporting round bar. The surface of the supporting round rod 1 is provided with a plurality of positioning grooves 11 arranged along the length direction of the supporting round rod 1, and the center of the supporting round rod 1 is provided with a positioning screw hole 12 parallel to the positioning grooves 11.

As shown in fig. 2 and 5, first joints 5 are symmetrically arranged at two ends of the supporting round bar 1. The first connector 5 includes a positioning bar 51 corresponding to each positioning groove 11, and each positioning bar 51 is located in the corresponding positioning groove 11. One end of each positioning strip 51 is fixed to the inner edge of the first disc 52, and the other end is fixed inside the first ring body 53. The first disc 52 has a first through hole 54 at the center thereof corresponding to the positioning screw hole 12. The outer side of the first ring 53 is fixedly connected with a first cylinder 55. The two ends of the upper rod 2 are fixed in the two first cylinders 55, respectively. An L-shaped placing part 56 for placing a drawing board is arranged at the joint of the first cylinder 55 and the first ring body 53.

As shown in fig. 3 and 5, the outer end of each first joint 5 is provided with a second joint 6, and the second joint 6 includes a second ring body 61 and a second disc 62 fixed outside the second ring body 61. The side of the second ring body 61 facing the first ring body 53 is provided with a first ring groove 63, and a plurality of limit blocks 631 are disposed in the first ring groove 63 to divide the first ring groove 63 into limit ring grooves 632 with different arc lengths. The second disc 62 is provided with a second through hole 64 at the center thereof corresponding to the positioning screw hole 12. A third circular disc 65 is arranged on the inner side of the second through hole 64, and a third through hole 66 corresponding to the positioning screw hole 12 is arranged at the center of the third circular disc 65. A second groove 67 is formed between the third disk 65 and the inner surface of the second ring 61, and a stopper 671 is disposed in the second groove 67. The outer ends of the first disk 52 and the positioning bars 51 are located in the second ring body 61, and the first disk 52 and the third disk 65 are closely attached. The first disc 52 is provided with a first guide 521 which extends into the second annular groove 67. The outer side of the second disc 62 is provided with a fastening bolt 7, the outer end of the fastening bolt 7 is provided with a knob 71, and the inner end of the fastening bolt passes through the second through hole 64, the third through hole 66 and the first through hole 54 in sequence and then is fixed with the positioning screw hole 12. The second cylinder 68 is arranged on the side surface of the second ring body 61, two ends of the front rod 3 are respectively fixed in the two second cylinders 68, and the walking wheels 31 are arranged on two sides of the bottom end of the front rod 3. After the fastening bolt 7 is loosened, the angle between the upper rod 2 and the front rod 3 can be freely adjusted, the angle of the placing part 56 is further adjusted, so that the angle of the drawing board is adjusted, and after the drawing board reaches a required position and an angle, the fastening bolt 7 is tightened and positioned; if the fastening bolt 7 is not tightened, the upper rod 2 is finally fixed in a position, which maintains a fixed angle, preferably 180 degrees, with the front rod 3 due to the limit between the first guide block 521 and the stopper 671, so that it can automatically form a tie rod.

As shown in fig. 4 and 5, a third joint 8 is disposed between the first joint 5 and the second joint 6, and the third joint 8 includes a third ring 81. The third ring 81 is fitted around the outer periphery of each positioning bar 51 and is rotatable about the axis of the positioning screw hole 12. The side of the third ring body 81 facing the second ring body 61 is provided with a second guide block 82 extending into the limiting ring groove 632. The third ring 81 is provided with a third cylinder 83 on the side, the two ends of the rear rod 4 are fixed in the two third cylinders 83, the angle corresponding to the limit ring groove 632 is preferably 52 degrees, that is, after the rear rod rotates 52 degrees freely, the second guide block 82 is limited and blocked by the limit block 631. Before the second guide block 82 is free to rotate in the stopper ring groove 632 and does not abut against the stopper 631, the rear lever and the front lever can always freely rotate without being affected by the fastening bolt 7. Therefore, the folding or unfolding between the rear rod and the front rod can be controlled only by the gravity of the rear rod, and the operation is simple. The middle of the bottom of the rear rod 4 is provided with a foot pad 41, which is convenient for providing stable support when being unfolded.

As shown in fig. 2, the first disk 52 is provided with first positioning protrusions 522 arranged circumferentially on an outer side thereof, and each first positioning protrusion 522 forms a wavy first positioning surface. As shown in fig. 3, the third disc 65 has second positioning protrusions 651 arranged circumferentially on a side surface thereof opposite to the first disc 52, and each of the second positioning protrusions 651 forms a wavy second positioning surface to be well positioned with respect to the first positioning surface and to be prevented from rotating relative thereto.

As shown in fig. 6, the fastening bolt 7 is loosened, the upper bar 2 and the rear bar 4 can be rotated to be overlapped with the front bar 3 and folded, or as shown in fig. 7, the angle of the upper bar 2 is adjusted, and the upper bar 2 is used as a draw bar.

As shown in fig. 8, a platform holding block 681 is provided on a side surface of the second cylinder 68, the platform holding block 681 is provided with a clamp groove 682, openings of the two clamp grooves 682 face each other, and a platform plate 683 is provided between the two clamp grooves 682. The side of the third cylinder 83 is provided with an upper baffle 831 corresponding to the platform clamping block 681, which abuts against the top surface of the platform 683 after the front rod 3 and the rear rod 4 are unfolded, and at this time, the upper baffle 831 and the clamping groove 682 cooperate to fix the platform 683. Further, as shown in fig. 9, a storage bag 684 may be attached to the platform plate 683 for holding various art supplies.

As shown in fig. 10, the utility model can also be provided with a backpack 42 on the rear rod 4, and the top of the backpack 42 is fixedly connected with the middle part of the supporting round rod 1.

As shown in fig. 11, the present invention can also be provided with a platform plate 683, a storage bag 684 and a backpack 42, wherein the drawing board 9 is placed on the placing part 56.

The utility model has the advantages of it is following:

1. the device is small and portable:

the utility model discloses folding back size is only 37x54 centimetres, and is still small and exquisite than a 20 cun suitcase, makes things convenient for the student to paint from life, the examination is carried, takes the whole accessible of train, aircraft, big bus, satisfies the user demand of various functional environment.

2. The operation is simple:

the utility model discloses a skew principle of focus need not any office's button and can expand rapidly and fold, and the upper boom is as the pull rod, and the push-and-pull just can expand and receive to close, from fold condition to user state rapidly, from user state to drag the capable upper boom that only need be pulled up alright, labour saving and time saving.

3. Powerful has multiple storage space and platform:

(1) the utility model discloses a press from both sides the groove and insert the platform board and can become work platform, put stationery, put the look box, convenient to use, comfortable convenient, learning efficiency is high, does benefit to the management.

(2) The utility model discloses a knapsack design is strong, and fashion is convenient, powerful, and drawing paper, paintbox and drawing board are got at any time to the uncovered formula collecting bag of draw-out rope convenience.

(3) The utility model discloses double-deck thing formula storing bag of putting, upper and lower two-layer function partition is reasonable, and it is convenient to use, gets other articles commonly used at any time.

The utility model has convenient operation, various functions, small occupied space for indoor use, complete storage function and convenient teaching management; the multifunctional student desk is small in structure, convenient to carry, convenient for students to take pictures and take examinations, free of obstacles in the whole process of taking trains, airplanes and buses, and capable of meeting use requirements of various functional environments.

The above embodiments are merely illustrative of the principles and effects of the present invention, and are not to be construed as limiting the invention. The present invention can be modified in many ways without departing from the spirit and scope of the present invention, and those skilled in the art can modify or change the above embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.

Claims

1. A portable folding easel is characterized by comprising a supporting round rod, wherein a U-shaped upper rod, a front rod and a rear rod are arranged between the two ends of the supporting round rod; the surface of the supporting round rod is provided with a plurality of positioning grooves arranged along the length direction of the supporting round rod, and the center of the supporting round rod is provided with a positioning screw hole parallel to the positioning grooves;

2. The portable folding easel according to claim 1, wherein: first positioning bulges which are circumferentially arranged are arranged on the outer side of the first disc, and each first positioning bulge forms a wavy first positioning surface; the side face of the third disc opposite to the first disc is provided with second positioning bulges which are arranged circumferentially, and each second positioning bulge forms a wavy second positioning surface.

3. The portable folding easel according to claim 1 or claim 2, wherein: a platform clamping block is arranged on the side surface of the second cylinder body, the platform clamping block is provided with clamping grooves, the openings of the two clamping grooves are opposite, and a platform plate is arranged between the two clamping grooves; and an upper baffle corresponding to the platform clamping block is arranged on the side surface of the third cylinder and abuts against the top surface of the platform plate.

4. A portable folding easel according to claim 3, further comprising: and the platform plate is connected with a storage bag in a hanging mode.

5. The portable folding easel according to claim 1 or claim 2, wherein: the back pole is equipped with the knapsack, and this knapsack top and this support pole middle part fixed connection.

6. A portable folding easel according to claim 3, further comprising: the back pole is equipped with the knapsack, and this knapsack top and this support pole middle part fixed connection.

7. The portable folding easel according to claim 1 or claim 2, wherein: and a foot pad is arranged in the middle of the bottom of the rear rod.