CN113142934A - Portable myopia prevention tablecloth - Google Patents
Portable myopia prevention tablecloth Download PDFInfo
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- CN113142934A CN113142934A CN202110345488.1A CN202110345488A CN113142934A CN 113142934 A CN113142934 A CN 113142934A CN 202110345488 A CN202110345488 A CN 202110345488A CN 113142934 A CN113142934 A CN 113142934A
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47G—HOUSEHOLD OR TABLE EQUIPMENT
- A47G11/00—Table linen
- A47G11/003—Table-cloths
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Abstract
The invention provides portable myopia-preventing tablecloth which comprises a rectangular tablecloth body, wherein an adjusting assembly is arranged on the left side of the top surface of the tablecloth body, the adjusting assembly comprises a fixed bottom plate which is arranged on the tablecloth body and fixedly connected with the tablecloth body, an arc-shaped fixed plate which is fixedly connected with the fixed bottom plate and vertically provided with a circle center included angle smaller than 90 degrees is arranged on the fixed bottom plate, the arc-shaped fixed plate is made of elastic materials, and an adjusting disc is arranged on the inner side of the arc-shaped fixed plate. The invention solves the problems that the existing tablecloth has single fold and function and does not have the function of preventing myopia due to repeated folding.
Description
Technical Field
The invention relates to the technical field of tablecloth, in particular to portable myopia prevention tablecloth.
Background
For the current teenagers, the most important work is reading and learning, and most of the learning places are schools, families or libraries; as the teenagers are in the growth stage at the present stage, the teenagers usually like to be close to books in the learning process, and the poor learning habits are the main factors causing myopia; therefore, it is important to correct the learning posture during the course of young learning and to avoid myopia during the learning process.
In order to prevent the generation of myopia of students during the learning process, various learning tools capable of preventing myopia are in endless, and the tablecloth is used as one of various tools for the students during the learning process, so that the cleanness and the rich colors of the tabletop can be kept, and the learning state of the students can be adjusted; however, the existing tablecloth is usually made of cloth materials, and wrinkles are easily caused by repeated folding, so that the use is influenced; the existing tablecloth has single function and does not have the function of preventing myopia.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides portable myopia prevention tablecloth, which solves the problems that the existing tablecloth is folded for many times, has single function and does not have the function of preventing myopia and the like.
The technical scheme adopted by the invention for solving the technical problems is as follows: a portable myopia-preventing tablecloth comprises a rectangular tablecloth body, wherein an adjusting assembly is arranged on the left side of the top surface of the tablecloth body, the adjusting assembly comprises a fixed bottom plate which is arranged on the tablecloth body and fixedly connected with the tablecloth body, an arc-shaped fixed plate which is fixedly connected with the fixed bottom plate and vertically provided with a circle center included angle smaller than 90 degrees is arranged on the fixed bottom plate, the arc-shaped fixed plate is made of elastic materials, and an adjusting disc is arranged on the inner side of the arc-shaped fixed plate;
the arc-shaped fixing plate is provided with a fixing hole, the adjusting disc is provided with a positioning column which can be matched with the fixing hole, and the upper end of the positioning column is hemispherical; the two sides of the adjusting disc are provided with cross adjusting frames, and the arc-shaped fixing plate is provided with a pushing plate which can be pushed by the cross adjusting frames; the included angle between the axis of the positioning column and the adjacent single side of the cross-shaped adjusting frame is 45 degrees;
the adjusting disc is connected with the fixed bottom plate through a support, and the adjusting disc can rotate on the support by taking the horizontal central line of the adjusting disc as a shaft; the peripheral side of the adjusting disc is fixedly provided with an adjusting column which can be unfolded relative to the tablecloth body;
the fixed bottom plate is provided with an inductor, the table cloth body is provided with a strip-shaped lamp, and the table cloth body is made of elastic materials;
one side of the adjusting column, which is opposite to the tablecloth body, is provided with an installation frame groove, an installation frame which is hollow inside is arranged in the installation frame groove, one end of the adjusting column, which is far away from the adjusting disc, is connected with one end of the installation frame through a shaft rod, and the adjusting column and the installation frame can be unfolded and closed relatively;
a motor is arranged in the mounting frame, a rotary joint and a movable joint are sequentially arranged in the direction away from the motor, the rotary joint is in threaded connection with the movable joint, and one end of the movable joint, which is away from the rotary joint, is connected with the lamp; a fixed plate is further arranged in the mounting rack, and the movable joint penetrates through the fixed plate and can move back and forth along the central axis of the fixed plate; two groups of symmetrically arranged strip-shaped grooves are formed at the joint of the fixed plate and the movable joint, and sliding blocks fixedly connected with the movable joint are arranged in the strip-shaped grooves and can slide in the strip-shaped grooves; a first lampshade and a second lampshade are sequentially arranged on the mounting frame on the lower side of the lamp in the direction away from the adjusting column; and a controller for controlling the motor is also arranged in the mounting frame.
Preferably, the bar lamp, the inductor and the motor are all connected with the controller.
Preferably, one end of the adjusting column, which is far away from the adjusting disc, is provided with a plurality of first circular electric-contact blocks and a first arc-shaped electric-contact block, and the first circular electric-contact blocks are uniformly distributed on the same arc line; one end of the mounting rack close to the shaft rod is correspondingly provided with a second circular electric-contacting block matched with the first circular electric-contacting block and a second arc electric-contacting block matched with the first arc electric-contacting block; first circular electric shock piece and first arc electric shock piece link to each other, the circular electric shock piece of second with the electric shock piece of second arc all links to each other with the motor.
Preferably, the front side and the rear side of the tablecloth body are respectively provided with a closing component which can be curled and buckled; the closing assembly comprises a closing protrusion, a strip-shaped block and a closing groove which are sequentially arranged from bottom to top, and the closing protrusion is matched with the closing groove clamping groove.
Preferably, the left ends of the front side and the rear side of the tablecloth body are respectively provided with a rolled zipper, and the front side and the rear side of the tablecloth body are respectively provided with a strip-shaped zipper capable of being meshed with the rolled zippers.
Preferably, a telescopic rod is arranged between the mounting frame and the adjusting column, the telescopic rod is positioned in the groove of the mounting frame, one end of the telescopic rod is connected with the mounting frame, and the other end of the telescopic rod is connected with the adjusting column; the telescopic rod consists of a second hollow rod and a first hollow rod with the lower end closed, and the first hollow rod is positioned in the second hollow rod and can move along the axis of the second hollow rod;
the adjusting column is provided with a strip-shaped hole communicated with the groove of the mounting frame, the second hollow rod is connected with the mounting frame through a second shaft rod, the first hollow rod extends out of the strip-shaped hole, and the first hollow rod is connected with the adjusting column through a first shaft rod.
The invention has the beneficial effects that:
1. the product adopts an elastic material as the tablecloth, and the two ends of the tablecloth are closed through the closing components, so that the tablecloth can be stored only by rolling up, and the tablecloth is convenient and quick to carry; the folding of the tablecloth is avoided, so that the service life and the use effect of the tablecloth are influenced.
2. The mounting rack is provided with the lamp, and the height adjustment and angle conversion of the lamp are realized by rotating the adjusting disc, unfolding the adjusting column and the mounting rack; the fixing holes are matched with the positioning columns, so that the stability of the adjusting assembly is improved, and the stability of the adjusted lamp can be improved; especially, the cross-shaped adjusting bracket is matched with the pushing plate, when the height of the lamp is adjusted, the arc-shaped positioning plate does not need to be pulled, only the adjusting column needs to be pulled, and the lamp is convenient and fast.
3. The adjusting column is connected with the mounting rack through a shaft rod and can be relatively unfolded and closed; and the adjusting column and the mounting rack are respectively provided with a first circular electric contact block, a first arc electric contact block, a second circular electric contact block and a second arc electric contact block which are correspondingly matched, and the adjustment of the equivalent switch and the brightness can be realized by shifting the mounting rack.
4. The distance between the learner and the desktop is sensed by the table cloth body through the sensor, and the reminding is carried out through the strip-shaped lamp, so that the situation that the desktop is close to a student in the learning process is avoided, and the myopia is prevented; through the lamp that can follow the fixed plate axis and move, intermittent type nature shines the second lamp shade to arouse learner's attention, avoid learning tired, further prevent near-sighted.
5. The front side and the rear side of the table cloth body are curled and closed through the closing component, and the table cloth is convenient to carry.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic structural view of a tablecloth according to the present embodiment;
FIG. 2 is a schematic top view of the tablecloth of the present embodiment;
FIG. 3 is a schematic structural view of the adjusting assembly of the present embodiment;
FIG. 4 is a schematic structural diagram of an arc-shaped fixing plate according to the present embodiment;
FIG. 5 is a schematic structural view of the present embodiment when the adjusting post and the mounting bracket are opened;
FIG. 6 is a schematic view of the present embodiment with the mounting bracket inside the adjustment post;
FIG. 7 is a schematic view of the structure of the adjustment column in this embodiment;
FIG. 8 is a schematic cross-sectional view of the adjustment column in this embodiment;
fig. 9 is a schematic view of the internal structure of the mount in the present embodiment;
fig. 10 is a schematic view of a connecting structure of the tablecloth body and the rolled zipper in the present embodiment;
FIG. 11 is a schematic view showing a coupling structure of the coil zipper and the circular plate in the present embodiment;
FIG. 12 is a schematic view showing a connection structure of the bar-shaped blocks with the closed protrusions and the closed grooves in this embodiment;
FIG. 13 is a schematic view showing a coupling structure of the telescopic bar in the present embodiment;
FIG. 14 is a schematic view of the internal structure of the telescopic rod of the present embodiment;
fig. 15 is a schematic structural view of the telescopic rod in the compressed state in the embodiment.
Reference numerals:
11: the table cloth body 12: the closing component 13: bar lamp
14: adjusting assembly
31: arc-shaped fixing plate 32: adjustment of the disc 33: push plate
34: cross-shaped adjusting bracket 35: positioning column 36: adjusting column
37: the inductor 38: fixed bottom plate
40: the support 41: fixing hole
51: mounting bracket 52: shaft lever 53: mounting bracket groove
54: telescopic rod
81: first circular contact block 82: the first arc electric shock block
91: second circular contact block 92: second arc-shaped contact block 93: electric machine
94: the rotary joint 95: the moving joint 96: fixing plate
97: strip-shaped groove 98: the slide block 99: lamp with a light source
991: first lamp cover 992: second lampshade
101: the strip zipper 102: circular cloth 103: coil-like slide fastener
121: the bar block 122: the closing projection 123: closed groove
131: first shaft 132: strip-shaped hole 141: a first hollow rod
142: second hollow rod 143: pressing the lever 144: second shaft lever
145: first compression spring 146: second compression spring 147: adjusting plate
148: the regulation groove 149: locating slot
Detailed Description
Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.
In the present invention, the terms "mounted," "connected," "fixed," and the like are used in a broad sense, and for example, "connected" may be a fixed connection, a detachable connection, or an integral connection. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, the practical directional terms such as "upper, lower, left, right" generally refer to upper, lower, left, right as shown in the drawings, unless otherwise specified; "inner and outer" refer to the inner and outer relative to the profile of the components themselves.
Example 1
Referring to fig. 1 to 15, a portable myopia prevention tablecloth comprises a rectangular tablecloth body 11, an adjusting component 14 is arranged on the left side of the top surface of the tablecloth body 11, the adjusting component 14 comprises a fixing bottom plate 38 which is arranged on the tablecloth body 11 and fixedly connected with the tablecloth body 11, an arc fixing plate 31 (shown in fig. 3 and 4) which is fixedly connected with the fixing bottom plate 38 and vertically arranged and has a circle center included angle smaller than 90 degrees is arranged on the fixing bottom plate 38, the arc fixing plate 31 in the embodiment is made of an elastic material, and is shown in fig. 3, and an adjusting disc 32 is arranged on the inner side of the arc fixing plate 31.
Referring to fig. 3 and 4, a fixing hole 41 is formed in the arc-shaped fixing plate 31, a positioning column 35 capable of being matched with the fixing hole 41 is arranged on the adjusting plate 32, and the upper end of the positioning column 35 is hemispherical, so that the positioning column 35 can slide into the fixing hole 41 conveniently; both sides of the adjusting disk 32 are provided with cross-shaped adjusting frames 34, and the arc-shaped fixing plate 31 is provided with a pushing plate 33 which can be pushed by the cross-shaped adjusting frames 34; the included angle between the axis of the positioning column 35 and the adjacent single side of the cross-shaped adjusting frame 34 is 45 degrees;
the adjusting disk 32 is connected with the fixed bottom plate 38 through a bracket 40, and the adjusting disk 32 can rotate on the bracket 40 by taking the horizontal central line of the adjusting disk 32 as an axis; an adjusting column 36 is fixedly arranged on the outer peripheral side of the adjusting disc 32, and the adjusting column 36 can be unfolded relative to the tablecloth body 11; in the embodiment, the included angle between the circle center of the arc-shaped fixing plate 31 and the table cloth body 11 is smaller than 90 degrees, and the arc-shaped fixing plate 31 is vertically arranged, so that the included angle between the arc-shaped fixing plate 31 and the table cloth body 11 is larger than 90 degrees when the adjusting column 36 is opened;
be equipped with inductor 37 on PMKD 38 for the distance of response student and desktop, be equipped with bar lamp 13 on the tablecloth body 11, when the table cloth of curling up, can not damage bar lamp 13.
Specifically, the adjusting disc 32 is driven to rotate, the pushing plate 33 is pushed by the cross-shaped adjusting frame 34 in a single side, the arc-shaped fixing plate 31 is driven to move in the direction away from the adjusting disc 32, when the pushing plate 33 slides into an included angle between two single sides of the cross-shaped adjusting frame 34, the positioning column 32 enters the fixing hole 41 in the arc-shaped fixing plate 31, and due to the fact that the arc-shaped fixing plate 31 is made of elastic materials, stability between the adjusting disc 32 and the arc-shaped fixing plate 31 is guaranteed under the action of elastic force, and stability of the adjusting column 36 is further improved; when the positioning column 35 is separated from the fixing hole 41, the positioning column 35 can be separated from the fixing hole 41 by applying a force far away from the adjusting disc 32 to the arc-shaped fixing plate 31 by hand; in the embodiment, the positioning column 35 can be matched with the fixing hole 41 only by pulling the adjusting column 36, so that the operation is convenient and fast; when the study is closer to the desktop, the sensor 37 sends a signal (the sensor 37 in the embodiment is an infrared sensor), the bar lamp 13 flickers to remind students to correct sitting postures and distances from the desktop, and myopia caused by the fact that the distance from the desktop is closer is avoided.
As shown in fig. 5 to 9, a mounting bracket groove 53 is formed in a side of the adjusting column 36 opposite to the tablecloth body 11, a mounting bracket 51 with a hollow interior is arranged in the mounting bracket groove 53, one end of the adjusting column 36 away from the adjusting disc 32 is connected with one end of the mounting bracket 51 through a shaft rod 52, and the adjusting column 36 and the mounting bracket 51 can be opened and closed relatively; because the adjusting column 36 can rotate along with the adjusting disk 32, and the mounting frame 51 is positioned in the adjusting column, the space volume of the adjusting component 14 is reduced, the tablecloth body 11 is convenient to store, and meanwhile, the occupied space and the carrying convenience are also reduced.
Referring to fig. 9, a motor 93 is arranged in the mounting frame 51, the motor 93 is close to the shaft 52, a rotary joint 94 and a movable joint 95 are sequentially arranged in a direction away from the motor 93, the rotary joint 94 is in threaded connection with the movable joint 95, one end of the movable joint 95 away from the rotary joint 94 is connected with a lamp 99, a fixing plate 96 is further arranged in the mounting frame 51, and the movable joint 95 penetrates through the fixing plate 96 and can move back and forth along the central axis of the fixing plate 96; specifically, the motor 93 in this embodiment can rotate forward and backward, and the rotary joint 94 is in threaded connection with the movable joint 95, so that the movable joint 95 moves back and forth in the fixed plate 96; two groups of symmetrically arranged strip-shaped grooves 97 are arranged at the joint of the fixed plate 96 and the movable joint 95, a sliding block 98 fixedly connected with the movable joint 95 is arranged in each strip-shaped groove 97, the sliding block 98 can slide in each strip-shaped groove 97, the movable joint 95 is prevented from being driven to rotate by the rotary joint 94 in the rotating process, and the movable joint 95 is ensured to move back and forth along the central line of the fixed plate 96; a first lampshade 991 and a second lampshade 992 are sequentially arranged on the mounting frame 51 at the lower side of the lamp 99 in the direction away from the adjusting column 36;
specifically, in this embodiment, the first lamp cover 991 is made of transparent plastic, the second lamp cover 992 is a color lamp cover (for example, green, yellow, red, etc.), the second lamp cover 992 is strip-shaped, and the length direction of the second lamp cover 992 is perpendicular to the central axis of the lamp 99; the first lamp housing 991 is always on the underside of the lamp 99, and when the lamp 99 moves in a direction away from the adjusting post 36, moves to the limit of its stroke, and the second lamp housing 992 is on the underside of the lamp 99; consequently, when the in-process that lamp 99 removed, on the light that lamp 99 sent penetrated second lamp shade 992 gradually, produced the color light beam that light strengthens gradually on tablecloth body 11, this color light beam can move on tablecloth body 11 for remind the student this moment near or pay attention to the rest apart from the desktop, the setting of second lamp shade 992 can effectively avoid near-sightedly, still be equipped with the controller that is used for controlling motor 93 in the mounting bracket 51.
Referring to fig. 8 and 9, a plurality of first circular electric contact blocks 81 and a first arc electric contact block 82 are arranged at one end of the adjusting column 36 away from the adjusting plate 32, and the first circular electric contact blocks 81 are uniformly arranged on the same arc; one end of the mounting bracket 51 close to the shaft rod 52 is correspondingly provided with a second circular electric contact block 91 matched with the first circular electric contact block 81 and a second arc electric contact block 92 matched with the first arc electric contact block 82; the first circular electric-contacting block 81 is connected with the first arc-shaped electric-contacting block 82, and the second circular electric-contacting block 91 and the second arc-shaped electric-contacting block 92 are both connected with a motor 93; a power supply device (rechargeable battery) is further arranged in the mounting frame 51, the second circular electric contact block 91 is connected with a motor 93 through the power supply device, and the power supply device is further communicated with a lamp 99;
specifically, the mounting frame 51 is shifted, and one of the first circular electric contact blocks 81 and the first arc electric contact block 82 on the adjusting column 36 are respectively communicated with the second circular electric contact block 91 and the second arc electric contact block 92 on the mounting frame 51; in the process that the mounting frame 51 and the adjusting column 36 are relatively unfolded, the switching of the lamp 99 and the motor 93 is realized (the first circular electric contact blocks 81 are respectively connected with the first arc electric contact block 82 through electric wires, the second circular electric contact block 91 is connected with the power supply device and then connected with the motor 93, and the second arc electric contact block 92 is connected with the motor 93, so that when the first circular electric contact block 81 is communicated with the second circular electric contact block 91, the first arc electric contact block 82 is communicated with the second arc electric contact block 92, a series circuit is formed); due to the arrangement of the plurality of first circular electric-contact blocks 81, when the second circular electric-contact block 91 is respectively communicated with the first circular electric-contact blocks 81 at different positions, the first arc electric-contact block 82 and the second arc electric-contact block 92 are always in a connected state, so that the lamp 99 and the motor 93 can be switched on and off, and the adjustment of the mounting rack 51 at different heights can be adapted; in this embodiment, a telescopic rod 54 is disposed between the mounting frame 51 and the adjusting column 36 for supporting the mounting frame 51, the telescopic rod 54 is located inside the mounting frame groove 53, one end of the telescopic rod 54 is connected to the mounting frame 51, and the other end is connected to the adjusting column 36.
In the present embodiment, the second circular electric-contacting block 91 and the second arc-shaped electric-contacting block 92 are both communicated with the motor 93 (see fig. 9), so when the first circular electric-contacting block 81 is communicated with the second circular electric-contacting block 91 and the first arc-shaped electric-contacting block 82 is communicated with the second arc-shaped electric-contacting block 92, the motor 93 rotates; the controller in this embodiment controls the rotation direction of the motor 93 at intervals (the controller controls the motor 93 to rotate forward every 25 minutes, and controls the motor 93 to rotate backward after the lamp 99 moves above the second lamp cover 992 completely, and the adjustment time of the controller in this embodiment can be adjusted arbitrarily); the motor 93 drives the rotary joint 94 to rotate forward or backward, the movable joint 95 moves back and forth in the fixed plate 96 along the central line of the fixed plate 96, and the lamp 99 moves back and forth along the central line of the fixed plate 96; the first lampshade 991 is made of transparent materials, and the first lampshade 991 is always positioned on the lower side of the lamp, so that light irradiating the tablecloth is white; when the lamp 99 moves on the upper side of the second lamp housing 992, a color beam line moving from the front side to the rear side of the tablecloth body 11 is generated; the rotation direction of the motor 93 can be adjusted every 25 minutes or 35 minutes by modulating the controller, so that color light beam lines can be generated on the tablecloth body 11 every other time, the attention of students can be attracted, the students can be reminded to stop learning, the eyestrain can be relieved, and the myopia can be prevented; the product is suitable for the learning environment with darker light (study at home or in a drawing library at night, the lamp in the room can be turned off, and only the product is used), so that the application range of the product is enlarged.
Further, the bar-shaped lamp 13, the inductor 37 (in this embodiment, the inductor 37 is an infrared inductor), and the motor 93 are all connected to the controller; when the chest or the head of the student is close to the textbook or the desk top, the sensor 37 transmits a signal to the controller, and the controller controls the bar-shaped lamp 13 to flicker to remind the student of being close to the desk top or the textbook; especially, when the student has a long study time, the bar-shaped lamps 13 flash in a dot shape from left to right, and the student can observe the moving direction of the dot-shaped lamps to relieve the asthenopia.
Further, as shown in fig. 1, 2 and 12, the front side and the rear side of the tablecloth body 11 are provided with closing components 12 which can be curled and buckled; the closing component 12 comprises a closing protrusion 122, a strip-shaped block 121 and a closing groove 123 which are sequentially arranged from bottom to top, and the closing protrusion 122 is matched with the closing groove 123 in a clamping way; when taking in this product, the closed recess 123 and the lock of closed arch 122, can realize taking in and the closure of tablecloth, convenient and fast.
Example 2
In order to avoid that the tablecloth cannot be automatically opened in the carrying process after being rolled up and stored, the closing component 12 is improved as follows; referring to fig. 10 and 11, a preferred embodiment 2 of the present invention provides a portable myopia prevention tablecloth, which is different from embodiment 1 in that a rolled zipper 103 is disposed at left ends of front and rear sides of a tablecloth body 11, and the rolled zipper 103 is a spiral zipper sewn on a circular cloth 102 made of nylon; when the tablecloth is opened, the circular cloth 102 is located on the left side of the tabletop and automatically falls below the tabletop, so that the normal use of the tablecloth is not influenced; both sides all are provided with can with heliciform zip fastener 103 complex bar zip fastener 101 around the tablecloth body 11, and when accomodating this product, roll-like zip fastener 103 meshes with bar zip fastener 101, and tablecloth body 11 is rolled up along the shape that roll-like zip fastener 103 arranged in step.
Example 3
Although the telescopic rod 54 is adopted to support the mounting frame 51 in embodiment 1 of the present invention, the following modifications are proposed based on embodiment 1 in order to save cost and facilitate adjustment.
Referring to fig. 13 to 15, a preferred embodiment 3 of the present invention provides a portable myopia prevention tablecloth, which is different from embodiment 1 in that the telescopic rod 54 is composed of a second hollow rod 142 and a first hollow rod 141 with a closed lower end, and the first hollow rod 141 is located in the second hollow rod 142 and can move along the axis of the second hollow rod 142;
a strip-shaped hole 132 communicated with the mounting rack groove 53 is formed in the adjusting column 36, the second hollow rod 142 is connected with the mounting rack 51 through a second shaft rod 144, the first hollow rod 141 extends out of the strip-shaped hole 132, and the first hollow rod 141 is connected with the adjusting column 36 through a first shaft rod 131;
a pressing rod 143 capable of moving along the axis of the first hollow rod 141 is arranged inside the first hollow rod 141, and one end of the pressing rod 143, which is far away from the second hollow rod 142, extends out of the first hollow rod 141;
an adjusting groove 148 is formed in the lower end of the pressing rod 143, an adjusting plate 147 which is inserted into the adjusting groove 148 and is inverted into a U shape is formed in the lower end of the interior of the first hollow rod 141, the distance between two side walls of the adjusting plate 147 gradually decreases in the direction away from the second hollow rod 142, and the adjusting plate 147 is made of an elastic material;
a first compression spring 145 is arranged in the adjusting groove 148, a second compression spring 146 is arranged in the adjusting plate 147, and the second compression spring 146 is arranged along the radial direction of the first hollow rod 141;
the lower end of the outer periphery of the first hollow rod 141 is provided with two symmetrically arranged positioning openings, and the side wall of the adjusting plate 147 can move relatively and can extend out of the positioning openings;
specifically, as shown in fig. 14 or 15, the first hollow rod 141 is connected to the adjusting column 36 through the first shaft 131, and the second hollow rod 142 is connected to the mounting frame 51 through the second shaft 144; when the adjusting column 36 and the mounting frame 51 are not opened, as shown in fig. 14, the side wall of the adjusting plate 147 moves outward and extends out of the positioning opening (not shown) of the first hollow rod 141 under the action of the second compression spring 146, as shown in fig. 14 and 15, a plurality of positioning grooves 149 which are uniformly arranged and arranged in pairs are formed on the inner side wall of the second hollow rod 142, and the positioning grooves 149 are matched with the clamping grooves on the outer side wall of the adjusting plate 147 to ensure that the first hollow rod 141 cannot move in the second hollow rod 142; when the adjusting column 36 and the mounting frame 51 are adjusted, the pressing rod 143 is pressed to drive the adjusting groove 148 to be inserted into the U-shaped adjusting plate 147, and since the distance between the two side walls of the adjusting plate 147 gradually decreases in the direction away from the second hollow rod 142, in the process that the adjusting plate 147 enters the adjusting groove 148, the two side walls of the adjusting plate 147 are driven to move inward relatively, so that the adjusting plate 147 retracts into the first hollow rod 141 (see fig. 15), and in the process that the mounting frame 51 is adjusted to be unfolded, the first hollow rod 141 moves correspondingly in the second hollow rod 142; after the position of the mounting frame 51 is adjusted, the pressure applied to the pressing rod 143 is released, the adjusting plate 147 is driven to be separated from the adjusting groove 148 under the action of the first compression spring 145, the side wall of the adjusting plate 147 moves outwards relatively and extends out of the positioning opening on the first hollow rod 141 and is matched with the positioning groove 149 on the second hollow rod 142 under the action of the second compression spring 146, the stability of the first hollow rod 141 and the second hollow rod 142 is ensured under the thrust action of the second compression spring 146, and the stability of the mounting frame 51 is further improved; in the embodiment, the stability of the mounting frame 51 and the adjusting column 36 can be adjusted only by operating the pressing rod 143; the positioning grooves 149 in this embodiment are 3 pairs, and are uniformly arranged along the axis of the second hollow rod 142 from top to bottom, and when the outer side wall of the adjusting plate 147 is matched with the positioning groove 149 at the lower end of the second hollow rod 142, the included angle between the mounting frame 51 and the adjusting column 36 is 90 degrees.
In a word, the table cloth of the embodiment is provided with the strip-shaped lamp 13 to relieve eyestrain, illumination is realized through the adjusting component 14, students can conveniently learn in a dark environment, and particularly the second lamp cover 992 can remind the students to have a rest at intervals; the positioning column 35 and the fixing hole 41 are adjusted, and the telescopic rod 54 is adjusted, so that the control is convenient, the stability and structural stability of the adjusting assembly 14 are realized, the position of the lamp 99 is adjusted, and the lamp is convenient and quick. The closing component 12 is convenient to store and carry.
The above embodiments are only preferred embodiments of the present invention, and it should be understood that the above embodiments are only for assisting understanding of the method and the core idea of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalents and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (6)
1. The utility model provides a portable myopia prevention tablecloth, includes rectangle tablecloth body, its characterized in that: the left side of the top surface of the tablecloth body is provided with an adjusting assembly, the adjusting assembly comprises a fixed bottom plate which is arranged on the tablecloth body and fixedly connected with the tablecloth body, an arc-shaped fixed plate which is fixedly connected with the fixed bottom plate and vertically provided with a circle center included angle smaller than 90 degrees is arranged on the fixed bottom plate, the arc-shaped fixed plate is made of elastic materials, and an adjusting disc is arranged on the inner side of the arc-shaped fixed plate;
the arc-shaped fixing plate is provided with a fixing hole, the adjusting disc is provided with a positioning column which can be matched with the fixing hole, and the upper end of the positioning column is hemispherical; the two sides of the adjusting disc are provided with cross adjusting frames, and the arc-shaped fixing plate is provided with a pushing plate which can be pushed by the cross adjusting frames; the included angle between the axis of the positioning column and the adjacent single side of the cross-shaped adjusting frame is 45 degrees;
the adjusting disc is connected with the fixed bottom plate through a support, and the adjusting disc can rotate on the support by taking the horizontal central line of the adjusting disc as a shaft; the peripheral side of the adjusting disc is fixedly provided with an adjusting column which can be unfolded relative to the tablecloth body;
the fixed bottom plate is provided with an inductor, the table cloth body is provided with a strip-shaped lamp, and the table cloth body is made of elastic materials;
one side of the adjusting column, which is opposite to the tablecloth body, is provided with an installation frame groove, an installation frame which is hollow inside is arranged in the installation frame groove, one end of the adjusting column, which is far away from the adjusting disc, is connected with one end of the installation frame through a shaft rod, and the adjusting column and the installation frame can be relatively unfolded and closed;
a motor is arranged in the mounting frame, a rotary joint and a movable joint are sequentially arranged in the direction away from the motor, the rotary joint is in threaded connection with the movable joint, and one end of the movable joint, away from the rotary joint, is connected with the lamp; a fixed plate is further arranged in the mounting rack, and the movable joint penetrates through the fixed plate and can move back and forth along the central axis of the fixed plate; two groups of symmetrically arranged strip-shaped grooves are formed at the joint of the fixed plate and the movable joint, and sliding blocks fixedly connected with the movable joint are arranged in the strip-shaped grooves and can slide in the strip-shaped grooves; a first lampshade and a second lampshade are sequentially arranged on the mounting frame on the lower side of the lamp in the direction away from the adjusting column; and a controller for controlling the motor is also arranged in the mounting frame.
2. The portable myopia prevention tablecloth of claim 1, wherein: the bar-shaped lamp, the inductor and the motor are all connected with the controller.
3. The portable myopia prevention tablecloth of claim 1, wherein: one end of the adjusting column, which is far away from the adjusting disc, is provided with a plurality of first circular electric-contact blocks and a first arc-shaped electric-contact block, and the first circular electric-contact blocks are uniformly distributed on the same arc line; one end of the mounting rack close to the shaft lever is correspondingly provided with a second circular electric-contacting block matched with the first circular electric-contacting block and a second arc electric-contacting block matched with the first arc electric-contacting block; first circular electric shock piece and first arc electric shock piece link to each other, the circular electric shock piece of second with the electric shock piece of second arc all links to each other with the motor.
4. The portable myopia prevention tablecloth of claim 1, wherein: the front side and the rear side of the tablecloth body are respectively provided with a closing component which can be curled and buckled; the closed assembly comprises a closed protrusion, a strip-shaped block and a closed groove which are sequentially arranged from bottom to top, and the closed protrusion is matched with the closed groove clamping groove.
5. The portable myopia prevention tablecloth of claim 1, wherein: the left ends of the front side and the rear side of the tablecloth body are respectively provided with a coil-shaped zipper, and the front side and the rear side of the tablecloth body are respectively provided with a strip-shaped zipper capable of being meshed with the coil-shaped zippers.
6. The portable myopia prevention tablecloth of claim 1, wherein: a telescopic rod is arranged between the mounting frame and the adjusting column, one end of the telescopic rod is connected with the mounting frame, and the other end of the telescopic rod is connected with the adjusting column; the telescopic rod consists of a second hollow rod and a first hollow rod with the lower end closed, and the first hollow rod is positioned in the second hollow rod and can move along the axis of the second hollow rod;
adjust the post be equipped with the bar hole of mounting bracket recess intercommunication, the cavity pole in the second with the mounting bracket passes through the second shaft lever and connects, first cavity pole stretches out the bar hole, first cavity pole with adjust the post and pass through first axostylus axostyle and connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110345488.1A CN113142934A (en) | 2021-03-31 | 2021-03-31 | Portable myopia prevention tablecloth |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110345488.1A CN113142934A (en) | 2021-03-31 | 2021-03-31 | Portable myopia prevention tablecloth |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113142934A true CN113142934A (en) | 2021-07-23 |
Family
ID=76885705
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110345488.1A Withdrawn CN113142934A (en) | 2021-03-31 | 2021-03-31 | Portable myopia prevention tablecloth |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113142934A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102679232A (en) * | 2012-05-28 | 2012-09-19 | 中山生动力健身器材有限公司 | Desk lamp |
| US20150272356A1 (en) * | 2014-03-31 | 2015-10-01 | Alycia Stafford | Tablecloth with Securing Means |
| CN106338050A (en) * | 2016-11-05 | 2017-01-18 | 江苏智拓智能科技发展有限公司 | A ceiling lamp with changeable light color |
| CN207230262U (en) * | 2017-08-23 | 2018-04-13 | 新昌县维王卫浴有限公司 | A kind of supporting structure of desk lamp |
| CN207803961U (en) * | 2017-10-23 | 2018-09-04 | 裴中良 | A kind of mat applying of myopia-proof intelligent temperature controllable |
-
2021
- 2021-03-31 CN CN202110345488.1A patent/CN113142934A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102679232A (en) * | 2012-05-28 | 2012-09-19 | 中山生动力健身器材有限公司 | Desk lamp |
| US20150272356A1 (en) * | 2014-03-31 | 2015-10-01 | Alycia Stafford | Tablecloth with Securing Means |
| CN106338050A (en) * | 2016-11-05 | 2017-01-18 | 江苏智拓智能科技发展有限公司 | A ceiling lamp with changeable light color |
| CN207230262U (en) * | 2017-08-23 | 2018-04-13 | 新昌县维王卫浴有限公司 | A kind of supporting structure of desk lamp |
| CN207803961U (en) * | 2017-10-23 | 2018-09-04 | 裴中良 | A kind of mat applying of myopia-proof intelligent temperature controllable |
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| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20210723 |
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| WW01 | Invention patent application withdrawn after publication |