CN217013104U - Desktop folding mechanism - Google Patents

Abstract

The utility model discloses a desktop folding mechanism, which belongs to the technical field of office supplies and comprises a supporting part, a groove-shaped frame, a vertical arm and a desktop board, wherein the vertical arm is fixed on the supporting part and is hinged with the groove-shaped frame; the tail end of the hook extends to form a convex part, the vertical arm is correspondingly provided with a concave part, when the hook of the swing block is disengaged from the clamping position of the vertical arm, the groove-shaped frame rotates around the hinged position of the vertical arm, and the convex part of the swing block and the concave part of the vertical arm form clamping connection, so that the table top plate is vertically arranged. Through will found the arm to be fixed on the supporting part, cooperation elastic element's effect can realize the demand that the desktop was folded fast and is accomodate, and application prospect is showing fairly.

Description

Desktop folding mechanism

Technical Field

The utility model belongs to the technical field of office supplies, and particularly relates to a desktop folding mechanism.

Background

The training desk is mainly applied to education and office places such as meeting rooms, reading rooms, book and data rooms and the like. With the progress of society, people pay more and more attention to lifelong learning, and more training and meeting activities are carried out. And arranging in training place needs a large amount of training tables, and current training table adopts plate-type structure mostly, mainly comprises panel and the supporting part of fixed panel, and its working form is more fixed, generally can not dismantle and remove at will, treats after training, the meeting, and the training table is difficult to accomodate, fairly occupation space.

In the prior art, as disclosed in chinese patent No. CN212661393U, a training table is provided, which includes a table top and table legs, wherein two ends of a bottom surface of the table top are both fixed with second fixing blocks, two table legs are fixed with a supporting plate between the two table legs, two ends of a top surface of the supporting plate are both fixed with first fixing blocks, one end of each second fixing block is rotatably connected with one end of each first fixing block, the other end of each first fixing block is provided with a buckle, and the other end of each second fixing block is rotatably connected with a hook. The folding mechanism of the training table solves the problem of folding and containing the table to a certain extent, but has a complex structure and lower containing operation efficiency; and the folded desktop does not have the lock fastening, rocks easily in the transportation and produces the abnormal sound, and desktop folding mechanism remains further optimization and improvement.

Therefore, in order to solve the problems in the prior art, it is necessary to provide a table top folding mechanism that has a simple structure, can be folded quickly, and is stable and reliable.

Disclosure of Invention

The present invention provides a folding mechanism for a desktop to overcome the above problems of the related art.

The technical scheme of the utility model is realized as follows: a desktop folding mechanism comprises a supporting part, a groove-shaped frame, a vertical arm and a desktop board, wherein the vertical arm is fixed on the supporting part and is hinged with the groove-shaped frame, the groove-shaped frame is fixedly connected with the desktop board,

the groove-shaped frame is hinged with a swinging block, an elastic element is arranged at the hinged position of the swinging block and the groove-shaped frame, one end of the elastic element is abutted against the groove-shaped frame, and the other end of the elastic element is fixedly connected to the swinging block;

the swinging block is provided with a hook, the side wall of the vertical arm is correspondingly provided with a clamping position, the swinging block is buckled and connected with the clamping position of the vertical arm through the hook, and when the swinging block is buckled and connected with the vertical arm, the table top plate fixedly connected with the groove-shaped frame is horizontally arranged;

the tail end of the hook extends to form a convex part, the upper end face of the vertical arm is correspondingly provided with a concave part, when the hook of the swing block is disengaged from the clamping position of the vertical arm, the groove-shaped frame rotates around the hinged position of the vertical arm to drive the swing block to move upwards, the convex part of the swing block and the concave part of the vertical arm form clamping connection, and the table top plate fixedly connected with the groove-shaped frame is vertically arranged.

In the utility model, the vertical arm is fixed on the supporting part and hinged with the groove-shaped frame, the groove-shaped frame is fixedly connected with the tabletop plate, and the groove-shaped frame is matched with the action of the elastic element, so that the requirement of fast folding and containing the tabletop can be met, the manufacturing cost is low, and the application prospect is quite remarkable.

As a further improvement of the above scheme, the vertical arm comprises a base and an embedded block, and the lower part of the base is fixedly connected with the supporting part;

the side wall of the base is provided with the clamping position, the upper part of the base is provided with a notch, the embedded block is embedded into the notch and fixedly connected with the base, and the concave part is arranged on the embedded block;

it should be noted that, in the practical use process of a training table and the like, the folding and storage operations of the table top are frequent, and under the frequent contact between the swing block and the vertical arm, the concave part of the vertical arm is easy to wear, so that the convex part and the concave part of the swing block are not tightly clamped;

furthermore, the base and the embedded block are arranged on the vertical arm, and the embedded block is embedded into the notch of the base, so that the abrasion degree of the vertical arm and the swinging block can be effectively reduced; and once the inserted block is worn excessively, the embedded block can be replaced quickly, the operation is convenient and fast, and the actual service life of the desktop folding mechanism can be effectively prolonged.

As a further improvement of the scheme, the number of the groove-shaped frames and the number of the vertical arms are two, and the groove-shaped frames and the vertical arms are arranged in a mirror symmetry mode.

As a further improvement of the above scheme, a first rotating shaft is arranged at the hinged position of the vertical arm and the trough-shaped frame, and the trough-shaped frame can rotate around the first rotating shaft;

a second rotating shaft is arranged at the hinged position of the swing block and the groove-shaped frame, the swing block can rotate around the second rotating shaft, the elastic element is wound on the second rotating shaft, and the elastic element is a torsion spring;

it should be noted that most of the existing training tables are of a plate structure, and mainly comprise a panel and a supporting part for fixing the panel, and the working form of the training table is relatively fixed; this desktop folding mechanism can realize the fast switch-over of desktop under horizontality and upright state through the couple of centering block and the mutual lock of screens:

specifically, the folding action of the desktop from the horizontal state to the vertical state is realized under the action of the elastic element; the convex part through the pendulum piece forms the block with the concave part of standing the arm and is connected for the desktop board fastens when the state of standing and does not rock, guarantees the reliable and stable of training table transportation in-process, satisfies the daily in-service use demand of accomodating the training table, has improved and has accomodate operating efficiency.

As a further improvement of the above scheme, a synchronizing shaft is connected between the groove-shaped frames which are arranged in mirror symmetry, the synchronizing shaft and the second rotating shafts of the groove-shaped frames are positioned on the same axis, one end of each second rotating shaft is fixedly connected with the synchronizing shaft, the other end of each second rotating shaft is provided with a handle, the extending direction of the handle and the central axis of the second rotating shaft form an included angle alpha, the angle alpha is more than or equal to 90 degrees and less than or equal to 137 degrees;

it should be noted that, the transverse length of a common table top is relatively long, and if the buckling/unbuckling of the two pairs of swing blocks and the vertical arms cannot be synchronized, the table top is easy to jam in the folding process, and the folding and accommodating efficiency of the table top is low; furthermore, set up the synchronizing shaft, realize each pendulum block and the lock/the unbuckling synchronization action of founding the arm through the synchronizing shaft, the simple operation, accomodate efficiently.

As a further improvement of the above scheme, a hexagonal prism groove penetrates through the middle part of the synchronizing shaft, and each second rotating shaft is correspondingly hexagonal prism-shaped;

the outer walls of the two ends of the synchronizing shaft are respectively provided with a set screw, when the second rotating shafts at the two ends of the synchronizing shaft are respectively embedded into the hexagonal prism grooves, the set screws are screwed inwards from the outer walls and abut against and fix the second rotating shafts at the two ends of the synchronizing shaft;

it should be noted that the traditional synchronizing shaft is of an integral structure, and in the actual assembly process of the desktop folding mechanism, two ends of the synchronizing shaft are difficult to limit simultaneously and accurately, so that the assembly is difficult; furthermore, a through hexagonal prism groove is formed in the synchronizing shaft and is mutually clamped and embedded with the second rotating shafts on the two sides, and the mounting efficiency of the synchronizing shaft is greatly improved.

As a further improvement of the above scheme, an optical axis is connected between the vertical arms which are arranged in mirror symmetry, a pillar is arranged in the middle of the optical axis, one end of the pillar is fixedly connected with the tabletop plate, and the other end of the pillar is abutted against the optical axis;

the optical axis is also hinged with a storage rack, and two sides of the storage rack are respectively provided with a connecting rod and hinged with the groove-shaped rack through the connecting rods;

it should be noted that, when the distance between the vertical arms arranged in mirror symmetry is too long, the middle of the table top board is prone to sinking and deforming due to insufficient support, and further, the support is arranged between the optical axis and the table top board, so that the supporting effect of the support is utilized to ensure that the table top board does not sink and deform in the using process, and the practical use experience of users is improved.

As a further improvement of the proposal, the utility model also comprises a baffle plate which is positioned between the two trough-shaped frames and the vertical arm,

the two sides of the upper part of the baffle are respectively hinged with the groove-shaped frame, the two sides of the middle part of the baffle are respectively hinged on the vertical arm, and when the table top board is vertically arranged, the table top board is abutted against the baffle.

As a further improvement of the above scheme, the support part comprises a left support leg and a right support leg, and the left support leg and the right support leg are respectively and fixedly connected with vertical arms which are arranged in mirror symmetry; the left supporting leg/the right supporting leg extends downwards to form two forked legs, and the lower end face of each forked leg is also provided with a caster;

in order to facilitate the storage and the carrying of the training table, the lower end faces of the forked legs are provided with the trundles, and when the training table is not used, the table top plate is folded into an upright state, so that the space occupancy rate can be greatly reduced, and the occupation cost of higher and higher field resources is effectively reduced.

As a further improvement of the scheme, the left supporting leg/the right supporting leg is in a linear material shape, and the upper end openings of the profiles of the left supporting leg and the right supporting leg are respectively provided with a rubber block;

left side supporting leg/right supporting leg adopt line section bar, can effectively reduce the manufacturing cost of supporting part, and is further, port department sets up the rubber sprue in the section bar of left side supporting leg, right supporting leg, can prevent that the sharp port of section bar from exposing, avoids incident's emergence.

The utility model has the beneficial effects that:

(1) the table top has the advantages that the structure is simple, the vertical arm is fixed on the supporting part and hinged with the groove-shaped frame, the groove-shaped frame is fixedly connected with the table top plate, and the requirement of quick folding and storage of the table top can be met by matching the action of the elastic element, the manufacturing cost is low, and the application prospect is quite remarkable;

(2) the hook of the swinging block is buckled with the clamping position, so that the desktop is quickly switched between a horizontal state and an upright state, and the operation is convenient and reliable; the convex parts of the swing blocks are connected with the concave parts of the vertical arms in a clamping manner, so that the table top board is fastened and does not shake when being in an upright state, the table top board can be effectively prevented from being overturned suddenly, the safety protection effect is achieved, the stability and the reliability of the training table in the transferring process are ensured, the actual use requirement of daily storage of the training table is met, and the storage operation efficiency is improved;

(3) when the training table is not used, the table top plate is folded into an upright state, so that the space occupancy rate can be greatly reduced, the training table is convenient to store and carry, and the higher and higher occupied cost of field resources is effectively reduced;

drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is an exploded view of the present invention;

FIG. 3 is a perspective view of the folding assembly of the present invention;

FIG. 4 is a schematic structural view of a folding assembly of the present invention;

FIG. 5 is a schematic view of the connection of the channel frame, the swing block and the upright arm of the present invention;

FIG. 6 is a schematic view of the horizontal state of the present invention;

FIG. 7 is a schematic view of the upright position of the present invention;

reference numerals:

1. a table top plate;

2. a folding assembly; 21a, a left folding assembly; 21b, a right folding component;

211. a trough-shaped frame;

212. erecting an arm; 2121. a base; 2122. an insert block;

213. swinging a block; 213a, a hook; 213b, a convex portion;

q1, gap; q2, recess; q3, clamping; z1 and a first rotating shaft; z2 and a second rotating shaft;

214. an elastic element; 215. a handle;

22. a shelf; 23. a baffle plate; 24. a synchronizing shaft; 25. an optical axis; 26. a pillar;

3. a support portion; 31a, a left rubber block; 31b, a right rubber block; 32a, a left support leg; 32b, a right support leg; 33. a bifurcated leg; 34. a caster wheel.

Detailed Description

The technical solutions 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, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive step based on the embodiments of the present invention, are within the scope of protection of the present invention.

As shown in fig. 1 to 7, a table top folding mechanism is mainly applied to a training table to solve the technical problems of difficult storage, space occupation and the like of the training table, and comprises a supporting part 3, and a folding component 2 and a table top board 1 on the supporting part 3;

in the present embodiment, the support part 3 includes a left support leg 32a and a right support leg 32b, and the left support leg 32a and the right support leg 32b are respectively and fixedly connected with the vertical arms 212 arranged in mirror symmetry; the left supporting leg 32 a/the right supporting leg 32b extend downwards to form two forked legs 33, and the lower end face of each forked leg 33 is also provided with a caster 34; in order to facilitate storage and carrying of the training table, the casters 34 are arranged on the lower end faces of the forked legs 33, so that the table top board 1 is folded into an upright state when the training table is not used, the space occupancy rate can be greatly reduced, and the higher and higher site resource occupation cost is effectively reduced.

In this embodiment, the left/ right support legs 32a, 32b are in the shape of a linear material, and the upper ports of the profiles of the left and right support legs 32a, 32b are respectively provided with a rubber block; left side supporting leg 32 a/right supporting leg 32b adopt line section bar, can effectively reduce the manufacturing cost of supporting part 3, and is further, port department sets up the rubber sprue in left side supporting leg 32a, right supporting leg 32 b's section bar upper end, can prevent that the sharp port of section bar from exposing, avoids the emergence of incident.

In this embodiment, the number of the folding assemblies 2 is two, and the two folding assemblies 2 include a left folding assembly 21a and a right folding assembly 21b, and each folding assembly 2 is arranged in a mirror symmetry manner; specifically, the folding assembly 2 includes a channel frame 211 and an upright arm 212, the upright arm 212 is fixed to the supporting portion 3 and hinged to the channel frame 211, the channel frame 211 is fixedly connected to the table top 1,

the groove-shaped frame 211 is hinged with a swing block 213, the swing block 213 is integrally L-shaped, an elastic element 214 is arranged at the hinged position of the swing block 213 and the groove-shaped frame 211, one end of the elastic element 214 is abutted against the groove-shaped frame 211, and the other end of the elastic element 214 is fixedly connected to the swing block 213;

the swinging block 213 is provided with a hook 213a, the side wall of the upright arm 212 is correspondingly provided with a clamping position Q3, the swinging block 213 is buckled and connected with the clamping position Q3 of the upright arm 212 through the hook 213a, and when the swinging block 213 is buckled and connected with the upright arm 212, the desktop plate 1 fixedly connected with the groove-shaped frame 211 is horizontally arranged;

the end of the hook 213a extends to form a convex part 213b, the upper end of the upright arm 212 is correspondingly provided with a concave part Q2, when the hook 213a of the swing block 213 is disengaged from the detent Q3 of the upright arm 212, the groove-shaped frame 211 rotates around the hinge joint with the upright arm 212 to drive the swing block 213 to move upwards, the convex part 213b of the swing block 213 forms a snap connection with the concave part Q2 of the upright arm 212, and the table top 1 fixedly connected with the groove-shaped frame 211 is vertically arranged.

In this embodiment, the upright arm 212 includes a base 2121 and an insert 2122, and a lower portion of the base 2121 is fixedly connected to the support 3;

specifically, a plurality of through holes are formed in the lower part of the base 2121 and the support part 3 correspondingly, and a plurality of bolts pass through the through holes in the base 2121 and the support part 3 and are fastened with nuts to form fixed connection;

the side wall of the base 2121 is provided with the detent Q3,

the base 2121 is provided at an upper portion thereof with a notch Q1, the insert 2122 is embedded in the notch Q1 and fixedly connected to the base 2121,

specifically, a linear sliding table is arranged on the notch Q1 of the base 2121, a linear sliding rail is correspondingly arranged on the insert 2122, and the insert 2122 is guided into the sliding table of the base 2121 through the sliding rail and is fastened through screws;

the recess Q2 is provided on the insert 2122; in the actual use of the training table or the like, the folding and storage operation of the table top is frequent, and the concave portion Q2 of the upright arm 212 is easily worn by frequent contact between the swing block 213 and the upright arm 212, so that the convex portion 213b of the swing block 213 is not tightly engaged with the concave portion Q2;

furthermore, the base 2121 and the insert 2122 are arranged on the upright arm 212, and the insert 2122 is embedded into the notch Q1 of the base 2121, so that the abrasion degree of the upright arm 212 and the swing block 213 can be effectively reduced; and once the insert 2122 is worn excessively, the insert can be replaced quickly, so that the convenience and the rapidness are realized, and the actual service life of the table top folding mechanism can be effectively prolonged.

In this embodiment, a first rotating shaft Z1 is provided at the hinge joint of the upright arm 212 and the trough-shaped frame 211, and the trough-shaped frame 211 can rotate around the first rotating shaft Z1; a second rotating shaft Z2 is arranged at the hinged position of the swing block 213 and the groove type frame 211, the swing block 213 can rotate around the second rotating shaft Z2, the elastic element 214 is arranged on the second rotating shaft Z2 in a winding way, and the elastic element 214 is a torsion spring; it should be noted that most of the existing training tables adopt a plate-type structure, and mainly comprise a panel and a supporting part 3 for fixing the panel, and the working form of the training table is relatively fixed; the desktop folding mechanism can realize the quick switching of the desktop in a horizontal state and an upright state by buckling the hook 213a of the swinging block 213 and the clamping position Q3:

specifically, the folding action of the desktop from the horizontal state to the vertical state is realized by matching with the action of the elastic element 214; convex part 213b through pendulum piece 213 forms the block with the concave part Q2 of standing arm 212 and is connected for desktop board 1 fastens when the state of standing and does not rock, can prevent effectively that the desktop board from toppling over suddenly, has played safety protection's effect, guarantees the reliable and stable of training table transportation in-process, satisfies the daily in-service use demand of accomodating the training table, has improved and has accomodate operating efficiency.

In this embodiment, a synchronization shaft 24 is connected between the groove-shaped frames 211 arranged in mirror symmetry and the groove-shaped frames 211, the synchronization shaft 24 and the second rotation shafts Z2 of the groove-shaped frames 211 are located on the same axis, one end of each second rotation shaft Z2 is fixedly connected with the synchronization shaft 24, the other end of each second rotation shaft Z2 is provided with a handle 215, an included angle α is formed between the extension direction of the handle 215 and the central axis of the second rotation shaft Z2, and α is not less than 90 ° and not more than 137 °;

it should be noted that, the transverse length of a common table top is relatively long, if the two pairs of swing blocks 213 and the vertical arms 212 cannot be buckled/unbuckled synchronously, the table top is easy to jam during the folding process, and the table top folding and accommodating efficiency is low; furthermore, the synchronous shaft 24 is arranged, the synchronous buckling/unlocking action of each swing block 213 and the vertical arm 212 is realized through the synchronous shaft 24, the operation is convenient, and the storage efficiency is high;

in this embodiment, an included angle α formed by the extending direction of the handle 215 and the central axis of the second rotating shaft Z2 is preferably 105 °, and a certain included angle formed by the extending direction of the handle 215 and the central axis of the second rotating shaft Z2 is provided, so that on one hand, a user can operate the motion of the swing block 213 conveniently, and the desktop can be switched between the horizontal state and the vertical state quickly; on the other hand, the reasonable angle of configuration can let the user more laborsaving when stirring handle 215, improves user experience and feels.

Specifically, a hexagonal prism groove penetrates through the middle part of the synchronizing shaft 24, and each second rotating shaft Z2 is correspondingly in a hexagonal prism shape;

the outer walls of the two ends of the synchronizing shaft 24 are respectively provided with a set screw, when the second rotating shafts Z2 at the two ends of the synchronizing shaft 24 are respectively embedded into the hexagonal prism grooves, the set screws are inwards screwed from the outer walls to abut against and fix the second rotating shafts Z2 at the two ends of the synchronizing shaft 24; it should be noted that, the conventional synchronizing shaft 24 is of an integral structure, and in the actual assembly process of the desktop folding mechanism, the two ends of the synchronizing shaft 24 are difficult to simultaneously limit accurately, which causes difficulty in assembly; furthermore, a through hexagonal prism groove is formed in the synchronizing shaft 24 and is mutually clamped and embedded with the second rotating shafts Z2 on the two sides, and the mounting efficiency of the synchronizing shaft 24 is greatly improved.

In this embodiment, an optical axis 25 is connected between the vertical arms 212 and the vertical arms 212 that are arranged in mirror symmetry, a pillar 26 is disposed in the middle of the optical axis 25, one end of the pillar 26 is fixedly connected with the table top 1, and the other end of the pillar 26 abuts against the optical axis 25; it should be noted that, when the distance between the upright arms 212 and the upright arms 212 arranged in mirror symmetry is too long, the middle of the table top plate 1 is prone to sinking and deforming due to insufficient support, and further, the support column 26 is arranged between the optical axis 25 and the table top plate 1, and the support effect of the support column 26 is utilized to ensure that the table top plate 1 does not sink and deform in the using process, so as to improve the actual use experience of the user;

the optical axis 25 is also hinged with a storage rack 22, and two sides of the storage rack 22 are respectively provided with a connecting rod and hinged with the groove-shaped rack 211 through the connecting rods;

it should be noted that the desktop folding mechanism is mainly applied to education and office places such as conference rooms, reading rooms and book and reference rooms, and is provided with the storage rack 22, so that a user can conveniently and temporarily place personal articles such as books and backpacks, and the desktop folding mechanism is convenient and practical;

in addition, the two sides of the storage rack 22 are hinged to the groove-shaped frame 211 through connecting rods, and the storage rack 22 can be folded upwards along with the folding process of the table top plate 1 by adopting a connecting rod mechanism, so that the occupied space is reduced, and the training table can be conveniently transported and moved.

In a preferred embodiment, the table further comprises a baffle 23, the baffle 23 is located between the two trough-shaped frames 211 and the upright arms 212, two sides of the upper portion of the baffle 23 are respectively hinged to the trough-shaped frames 211, two sides of the middle portion of the baffle 23 are respectively hinged to the upright arms 212, and when the table top 1 is vertically arranged, the table top 1 abuts against the baffle 23.

Through the scheme of the utility model, in the specific application:

firstly, as shown in fig. 6, the desktop folding mechanism can be applied to a training desk and is suitable for being used in places such as training, office and the like of a user; the elastic element 214 is a torsion spring, one end of the torsion spring is abutted against the groove-shaped frame 211, the other end of the torsion spring is fixedly connected to the swinging block 213, a pretightening force towards the clamping position Q3 is provided for the hook 213a of the swinging block 213, the swinging block 213 is in buckling connection with the clamping position Q3 of the vertical arm 212 through the hook 213a, and when the swinging block 213 is in buckling connection with the vertical arm 212, the table top plate 1 fixedly connected with the groove-shaped frame 211 is horizontally arranged;

secondly, as shown in fig. 7, the handle 215 is pulled, the swing block 213 rotates around the second rotating shaft Z2 against a pre-tightening force, when the hook 213a of the swing block 213 is disengaged from the detent Q3 of the vertical arm 212, the groove-shaped frame 211 rotates around the first rotating shaft Z1 to drive the swing block 213 to move upwards, the convex portion 213b of the swing block 213 and the concave portion Q2 of the vertical arm 212 form a snap connection, the table top panel 1 fixedly connected with the groove-shaped frame 211 is vertically arranged, and the convex portion 213b of the swing block 213 and the concave portion Q2 of the vertical arm 212 form a snap connection, so that the table top panel 1 is fastened and does not shake in a vertical state, and can effectively prevent the table top panel from being turned over suddenly, thereby playing a role of safety protection, ensuring stability and reliability of the training table in the transportation process, meeting the actual use requirements of daily storage training tables, and improving the storage operation efficiency; in addition, each second rotating shaft Z2 acts synchronously under the action of the synchronizing shaft 24 to avoid the phenomenon of pause of the table top board 1 in the folding process;

finally, the vertical arm 212 is fixed on the supporting portion 3 and hinged to the groove-shaped frame 211, the groove-shaped frame 211 is fixedly connected with the tabletop plate 1, and the elastic element 214 is matched to meet the requirement of fast folding and storage of the tabletop, so that the manufacturing cost is low, and the application prospect is quite remarkable.

Variations and modifications to the above-described embodiments may occur to those skilled in the art based upon the disclosure and teachings of the above specification. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and some modifications and changes to the present invention should fall within the protection scope of the claims of the present invention. Furthermore, although specific terms are employed herein, they are used in a generic and descriptive sense only and not for purposes of limitation.

Claims (10)

1. The utility model provides a desktop folding mechanism, includes supporting part, channel type frame, found arm and desktop board, found the arm and fix on the supporting part, with the channel type frame is articulated mutually, the channel type frame with desktop board fixed connection, its characterized in that:

the groove-shaped frame is hinged with a swinging block, an elastic element is arranged at the hinged position of the swinging block and the groove-shaped frame, one end of the elastic element is abutted against the groove-shaped frame, and the other end of the elastic element is fixedly connected to the swinging block;

the swing block is provided with a hook, the side wall of the vertical arm is correspondingly provided with a clamping position, the swing block is buckled and connected with the clamping position of the vertical arm through the hook, and when the swing block is buckled and connected with the vertical arm, the table top plate fixedly connected with the groove-shaped frame is horizontally arranged;

the tail end of the hook extends to form a convex part, the upper end face of the vertical arm is correspondingly provided with a concave part, when the hook of the swing block is disengaged from the clamping position of the vertical arm, the groove-shaped frame rotates around the hinged position of the vertical arm to drive the swing block to move upwards, the convex part of the swing block and the concave part of the vertical arm form clamping connection, and the table top plate fixedly connected with the groove-shaped frame is vertically arranged.

2. The table top folding mechanism of claim 1, wherein the upright arm includes a base and an insert, the lower portion of the base being fixedly connected to the support;

the lateral wall of base is equipped with the screens, and the upper portion of base is equipped with a breach, the abaculus embedding in the breach, with base fixed connection, the concave part sets up on the abaculus.

3. The table top folding mechanism of claim 1, wherein there are two of the channel and the arm, and the channel and the arm are arranged in mirror symmetry.

4. The table top folding mechanism as claimed in claim 3, wherein a first rotating shaft is provided at the hinge joint of the upright arm and the trough frame, and the trough frame can rotate around the first rotating shaft;

the articulated department of pendulum piece and slot type frame is equipped with the second pivot, the pendulum piece can rotate around the second pivot, elastic element is around establishing in the second pivot, elastic element is the torsional spring.

5. The table top folding mechanism according to claim 4, wherein a synchronizing shaft is connected between the trough-shaped frames arranged in mirror symmetry, the synchronizing shaft is positioned on the same axis as the second rotating shafts of the trough-shaped frames, one end of each second rotating shaft is fixedly connected with the synchronizing shaft, the other end of each second rotating shaft is provided with a handle, the extending direction of the handle forms an included angle α with the central axis of the second rotating shaft, and the included angle α is greater than or equal to 90 degrees and less than or equal to 137 degrees.

6. A folding mechanism as claimed in claim 5, wherein a hexagonal prism slot is formed through the middle of the synchronizing shaft, and each second shaft is shaped like a hexagonal prism;

and the outer walls of the two ends of the synchronizing shaft are respectively provided with a set screw, and when the second rotating shafts at the two ends of the synchronizing shaft are respectively embedded into the hexagonal prism grooves, the set screws are inwards screwed in from the outer walls and abut against and fix the second rotating shafts at the two ends of the synchronizing shaft.

7. The table top folding mechanism of claim 6, wherein an optical axis is connected between the vertical arms arranged in mirror symmetry, a support is arranged in the middle of the optical axis, one end of the support is fixedly connected with the table top, and the other end of the support abuts against the optical axis;

still articulated on the optical axis have a supporter, the both sides of supporter are equipped with the connecting rod respectively, and pass through the connecting rod is articulated with the cell type frame.

8. The table top folding mechanism of claim 7, further comprising a baffle plate, said baffle plate being positioned between the two channel frames and the upright arms,

the two sides of the upper part of the baffle are respectively hinged with the groove-shaped frame, the two sides of the middle part of the baffle are respectively hinged on the vertical arm, and when the table panel is vertically arranged, the table panel is abutted against the baffle.

9. The table top folding mechanism of claim 8, wherein the supporting part comprises a left supporting leg and a right supporting leg, and the left supporting leg and the right supporting leg are respectively fixedly connected with the vertical arms which are arranged in mirror symmetry; the left supporting leg/the right supporting leg extend downwards to form two forked legs, and the lower end face of each forked leg is further provided with a caster.

10. The table top folding mechanism of claim 9, wherein the left/right support legs are formed as a linear material, and a rubber block is disposed at each of upper end openings of the sectional materials of the left/right support legs.

Images