CN213524291U - Table with turnover table top board, support bracket and sliding unlocking type folding bracket - Google Patents

Abstract

The utility model relates to a desk, support bracket and slip unlocking type folding bracket with upset desktop board belongs to furniture technical field. The sliding unlocking type folding support comprises a mounting support, a swinging support and a locking mechanism, wherein the swinging support can be hinged to the mounting support in a swinging mode between a target unfolding position and a target folding position, and the locking mechanism is at least used for locking the swinging support at the target position in an unlocking mode; the swing support can move back and forth between an unlocking position and a locking position along the axial direction of the hinge shaft; the mounting support is provided with an elastic reset mechanism, and the elastic restoring force of the elastic reset mechanism forces the swinging support to move to a locking position along the axial direction; when the swing support swings to the target position and is located at the locking position, the locking mechanism is in the locking state, and the locking state of the locking mechanism can be driven by the action that the swing support moves to the unlocking position along the axial direction to be converted to the unlocking state. The folding support can realize unlocking and swinging operation by a single hand, and can be widely applied to the field of home furnishing.

Description

Table with turnover table top board, support bracket and sliding unlocking type folding bracket

Technical Field

The utility model relates to the technical field of furniture, specifically speaking relates to a desk, support holder and slip unlocking type folding support with upset desktop board.

Background

As an essential device for a desk in a place such as a study or a work, a desk generally includes a desk top and a support for supporting the desk top at a certain height, such as a structure of a study desk disclosed in patent documents CN206213544U and CN205267398U, wherein the desk top is horizontally arranged based on the support of the support, and the desk top has a small number of people to be adapted due to the fixed height, and the support structure is improved to adjust the height of the desk top in order to increase the adaptable range of the desk top in height, such as a structure of a study desk disclosed in patent document CN 208891834U. In addition to the high frequency of use of a small number of tables, such as office tables, which are typically used for a small number of fixed periods of time, such as study tables, these tables typically occupy a large amount of floor space at home, i.e., less occupied floor space.

In order to solve the above technical problems, a common technical means is to directly fix the support of the desk such as the learning desk on the wall; the table top board is fixed on the wall in a turnover mode through the foldable support, the foldable support and the table top board form a turnover device, the table top board is supported at a use position through the foldable support in an unfolding state when the table top board is used, the support is locked at the unfolding use position through the locking mechanism arranged on the foldable support, and the table top board is turned to a folding position close to the wall through the foldable support in a folding state when the table top board is idle, so that part of space is released for other activities. In addition, the table top plate can be divided into a main plate and an auxiliary plate which is hinged on the side part of the main plate in a foldable and retractable manner by utilizing the folding bracket, so that the size of the whole actual table top can be adjusted according to the requirement, namely the whole floor area of the table is variable, and the originally small living area can be fully utilized.

However, in the folding and/or unfolding process of the existing flap device, two hands are needed to operate, namely, one hand opens the unlocking mechanism, and the other hand forces the table top board to fold or unfold; some tables can be operated by one hand, and usually the unlocking mechanism is arranged at the edge of the table top plate by using a traction rope, so that the overall structure is complex, and the problems of interference and the like easily exist. In addition, along with the increase of the length of the turning plate, a plurality of folding supports are required to work synchronously, namely, a plurality of locking mechanisms arranged side by side are required to be unlocked synchronously, at the moment, the pulling wires are difficult to be used for synchronous driving, and a hard rod approximately equal to the turning plate in length is usually adopted for synchronous driving, so that the integral structure is complex, and the interference with the turning action of the turning plate is easy to occur.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims at providing a sliding unlocking type folding bracket, which can simplify the structure of an unlocking mechanism while realizing the operation of unfolding and/or folding by one hand;

another object of the present invention is to provide a support frame constructed by the above slide unlocking type folding support frame;

it is still another object of the present invention to provide a table constructed by the above-mentioned sliding unlocking type folding support.

In order to achieve the main object, the present invention provides a sliding unlocking type folding bracket, which comprises an installation support, a swinging support, and a locking mechanism, wherein the swinging support is hinged to the installation support in a swinging manner between a target unfolding position and a target folding position, and the locking mechanism is at least used for locking the swinging support in the target position in an unlocking manner, and the target position is the target unfolding position and/or the target folding position; the swing support can move back and forth between an unlocking position and a locking position along the axial direction of the hinge shaft; the mounting support is provided with an elastic reset mechanism, and the elastic restoring force of the elastic reset mechanism forces the swinging support to move to a locking position along the axial direction; when the swing support swings to the target position and the swing support is located at the locking position, the locking mechanism is in the locking state, and the locking state of the locking mechanism can be converted to the unlocking state by the action that the swing support moves to the unlocking position along the axial direction.

In the scheme, the locking mechanism is driven to be switched between the locking state and the unlocking state based on the axial sliding of the swing support along the hinge shaft, so that in the use process, the swing support is directly or indirectly grabbed by only one hand and driven to overcome the resistance formed by the elastic restoring force to move from the locking position to the unlocking position along the hinge shaft axial direction, the locking mechanism is driven to be unlocked, then the swing support rotates around the hinge shaft between the unfolding position and the folding position, and if the two hands exert force together, the locking mechanism is simpler; after the swinging action is finished, the elastic restoring force of the restoring spring enables the elastic restoring force to move to the unlocking position along the axial direction of the hinge shaft or has the tendency of restoring to the unlocking position, so that when the elastic restoring force swings to the target position again, no external driving force along the axial direction of the hinge shaft exists, and the locking mechanism is driven to be converted to the locking state under the action of the elastic restoring force to achieve the locking purpose or keep the locking state. In the technical scheme, the unlocking and overturning actions of the swing support can be completed based on one-hand operation, and compared with the prior art, the unlocking mechanism can be effectively simplified; thereby making the whole structure more compact and simplified.

The locking mechanism comprises a locking pin and a pin hole which are inserted and matched along the axial direction; one of the mounting support and the swinging support is provided with a locking pin, and the other one is provided with a pin hole; when the swing support swings to a target position, the locking pin is located at a position aligned with the pin hole, when the swing support is located at a locking position, the locking pin is provided with a rod section part inserted into the pin hole, and the insertion connection state between the locking pin and the pin hole can be driven by the action of moving the swing support to an unlocking position to be completely decoupled.

In the technical scheme, when the swing support is at the target position, the hinge shaft and the hinge shaft hole are matched and the locking pin and the pin hole are matched in parallel to form a stable supporting structure, so that the turnover plate is stably supported at the target position and can provide pressure which can be borne by the locking pin/the hinge shaft; if the locking mechanism needs to be unlocked, the swing support is grasped by one hand and driven to overcome resistance formed by elastic restoring force to move from the locking position to the unlocking position along the axial direction of the hinge shaft, so that the locking pin inserted in the pin hole is driven to exit from the pin hole, and the swing support completely exits from the pin hole when reaching the unlocking position to complete unlocking operation, and then the swing support is enabled to adjust the swing position between the target unfolding position and the target folding position around the hinge shaft, and if two hands exert force together, the unlocking operation is simpler; after the folding is finished, the locking pin moves to the unlocking position along the axial direction of the hinge shaft or has the tendency of resetting to the unlocking position under the action of the elastic restoring force of the restoring spring, so that when the locking pin swings to the target position again, no external driving force along the axial direction of the hinge shaft exists, and the locking pin is driven to be inserted into the pin hole under the action of the elastic restoring force to finish the locking action.

More specifically, a wall blocking part is arranged on the other part, and the end opening of the pin hole is arranged on the wall surface of the wall blocking part; the wall surface is provided with an arc-shaped groove section at the middle-rear section of the swing track projection; the arc groove section is along the direction close to the pin hole, and the groove depth is gradually shallow to form a leading-in and leading-out surface of the locking pin; the projection of the swing track is the projection of the swing track of the locking pin on the wall surface relative to the other swing track around the hinge shaft in the process that the swing support swings around the hinge shaft from the target unfolding position to the target folding position. During the use, based on the setting of the arc-shaped groove section with the gradually deepened groove depth, the groove end of the groove can be smoothly slid into in the swinging process, so that the compression amount of the return spring is reduced, and the use fatigue is reduced.

More specifically, the pin holes are distributed on the mounting support, and the locking pins are fixed on the swinging support, so that the interference between the swinging support and the mounting support in the swinging process can be effectively reduced, and the structures of the swinging support and the mounting support are convenient to design.

The mounting support comprises a mounting bottom plate, and a locking limit hinge lug seat and an unlocking limit hinge lug seat which extend outwards from the outer plate surface of the mounting bottom plate and are oppositely arranged; the locking limiting hinge lug seat and the unlocking limiting hinge lug seat are both provided with hinge shaft holes matched with the end parts of the hinge shafts; the pin hole is arranged on the unlocking limit hinge lug seat. The technical scheme has simple structure and is convenient to manufacture.

The locking pin is provided with a thread part fixedly connected with the rod section part and is used for being matched with an installation screw hole arranged on the swing support to fixedly connect the locking pin to the swing support; the inner side surface of the unlocking limit hinge lug seat is of a flat plate surface structure; the flat plate surface structure is at least provided with an arc groove section or a locking hole matched with the locking pin at the tail end position of the swinging track projection; the projection of the swing track is the projection of the swing track of the locking pin relative to the other one around the hinge shaft on the flat plate surface structure in the process that the swing support swings around the hinge shaft from the target unfolding position to the target folding position.

The locking mechanism comprises a first coupling part protruding from the side surface of one of the mounting support and the swinging support and a second coupling part arranged on the other one of the mounting support and the swinging support; when the swing support is in a locking position and swings to a target position, the first coupling part and the second coupling are vertically abutted, so that the swing support is supported and limited at the target position; the first coupling part and the second coupling part can be driven by the action of moving the swing support to the unlocking position to be decoupled along the axial direction.

The preferred scheme is that the elastic reset mechanism is a compression spring sleeved outside the hinge shaft, one end of the compression spring is pressed against the side surface of the swing support, and the other end of the compression spring is pressed against the mounting support; a rotary isolating pad is movably sleeved outside the hinge shaft and is arranged between the end part of the compression spring and the side surface of the swing support.

The elastic reset mechanism is preferably a pair of annular permanent magnets which are arranged oppositely in the same pole, the two annular permanent magnets are sleeved outside the hinge shaft, the outer end face of one annular permanent magnet is pressed against the side face of the swinging support, and the outer end face of the other annular permanent magnet is pressed against the mounting support.

The preferred scheme is that a plurality of sliding unlocking type folding brackets are arranged side by side, and the swinging supports of the sliding unlocking type folding brackets are fixedly connected into a rigid body capable of synchronously moving along the axial direction based on the fixed connection of a rigid component.

In order to achieve the purpose, the support bracket provided by the utility model comprises more than two folding brackets which are arranged side by side, wherein the folding brackets are sliding unlocking type folding brackets described in any technical scheme; based on the fixed connection of the rigid member, the swing supports of more than two folding supports arranged side by side are fixedly connected into a rigid body capable of synchronously moving along the axial direction.

In order to achieve the above-mentioned another object, the present invention provides a table with a turn-over table top, which comprises two foldable brackets arranged side by side and used for mounting the turn-over table top; the folding bracket is a sliding unlocking type folding bracket described in any technical scheme.

Drawings

Fig. 1 is a perspective view of a plate turnover device in embodiment 1 of the present invention;

fig. 2 is a perspective view of a folding bracket in embodiment 1 of the present invention;

FIG. 3 is an enlarged view of a portion A of FIG. 1;

fig. 4 is a perspective view of a fixing support in embodiment 1 of the present invention;

fig. 5 is a partial structural view of the front side of the folding bracket in embodiment 1 of the present invention;

fig. 6 is a structural diagram of a swing support in embodiment 1 of the present invention;

fig. 7 is an exploded view of the hinge shaft, the return spring and the locking pin according to embodiment 1 of the present invention;

fig. 8 is a schematic view of the swing bracket moving from the locked position to the unlocked position by thrust in the unlocking process in embodiment 1 of the present invention;

fig. 9 is a schematic view of the swing bracket being turned from the deployed use position to the folded stowed position around the hinge shaft in the process of folding and stowing in embodiment 1 of the present invention;

fig. 10 is a schematic view of the swing bracket approaching to the locking position after being folded by the elastic restoring force of the return spring according to embodiment 1 of the present invention;

fig. 11 is a perspective view of a folding bracket according to embodiment 2 of the present invention;

fig. 12 is an exploded view of the folding bracket according to embodiment 2 of the present invention;

fig. 13 is a partial structural view of the front side of the folding bracket in embodiment 2 of the present invention;

fig. 14 is a schematic view of the swing bracket moving from the locked position to the unlocked position by thrust in the unlocking process according to embodiment 2 of the present invention;

fig. 15 is a schematic view illustrating that the swing frame is turned around the hinge shaft from the unfolded use position to the folded stowed position in the process of folding and stowing according to embodiment 2 of the present invention;

fig. 16 is a schematic view illustrating that the swing bracket approaches to the locking position after being folded by the elastic restoring force of the return spring in the folding and retracting process in embodiment 2 of the present invention;

fig. 17 is a schematic view of the swing support being closed to the locking position by the elastic restoring force of the return spring after being folded in the process of folding and retracting in embodiment 3 of the present invention.

Detailed Description

The present invention will be further described with reference to the following examples and accompanying drawings.

Example 1

Referring to fig. 1, the flap table 1 of the present invention includes a vertical fixing plate 10 and a sliding unlocking type flap device 2 fixed on the vertical fixing plate 10 by a fastening screw 11. The sliding unlocking type flap device 2 comprises a flap 20 and a mounting bracket 21 used for mounting the flap 20 on the vertical fixing plate 10 in a turnover manner, the mounting bracket 21 comprises more than two folding brackets 3 which are arranged side by side, and the specific number of the folding brackets 3 is two. The vertical fixing plate 10 may be fixed to a wall or the like by fasteners such as expansion screws engaged with the hole structures 100 formed thereon, so that the turning plate 20 is substantially in a horizontal position when the folding brackets 3 are unfolded, thereby forming a horizontal table top of the turning plate type table 1, or the structure of the folding brackets 3 may be modified appropriately to form an inclined table top; the vertical fixing plate 10 constitutes the target object in this embodiment, and is used for installing the sliding unlocking type panel turnover device 2, and it may also be a main structure of a wall or a table, for example, a sub-table top board of a table with a main table top board may be constructed by using a panel turnover, and the sub-table top board is located beside the main table top board, so as to be able to be unfolded and to be spliced with the main table top board to enlarge the usable area of the table top, and also when only the main table top board is needed, the sub-table top board may be folded and folded to reduce the occupation of space.

Referring to fig. 2 to 10, the folding bracket 3 includes a mounting bracket 4, a swing bracket 5 whose fixed end is hinged to the mounting bracket 4 by a hinge shaft 30, and a locking mechanism for locking the swing bracket 5 at a target position in a swing state about the hinge shaft 30.

The mounting bracket 4 includes a mounting base plate 40, and a hinge eyelet hole seat 41 and a hinge eyelet hole seat 42 which extend from an outer plate surface of the mounting base plate 40 to be bent outward by 90 degrees and are oppositely arranged, a hinge shaft hole 410 through which one end of the hinge shaft 30 passes is provided on the hinge eyelet hole seat 41, and a hinge shaft hole 420 through which the other end of the hinge shaft 30 passes is provided on the hinge eyelet hole seat 42, thereby fixedly mounting the hinge shaft 30 on the mounting bracket 4. A plurality of mounting through holes 400 are formed in the mounting base plate 40 for fastening screws to pass therethrough so as to fix the mounting bracket 4 to a target object such as the vertical fixing plate 10. In the present embodiment, the length directions of the hinge ear bases 41 and 42 extend to be substantially equal to the length direction of the mounting base plate 40, and are substantially trapezoidal, so as to form a reinforcing rib plate to improve the structural strength of the whole mounting seat 4. The mounting support 4 can be formed by directly bending a whole steel plate body, and can also be formed by welding steel plate blocks cut by scattered blocks. The hinge ear hole seats 42 are provided with hinge shaft holes 420 arranged side by side and pin holes 421 with a distribution distance L between central axes thereof, and the inner side surfaces of the hinge ear seats 42 are convexly formed with arc-shaped strip-shaped plane rails 423, the arc-shaped central axes of the arc-shaped strip-shaped plane rails 423 are centered around the central axes of the hinge shaft holes 420, the radius is equal to the distribution distance L, and the width of the rails is equal to the diameter of the holes of the pin holes 421.

The swing bracket 5 includes an outer link plate 50, and a hinge eye seat 51 and a hinge eye seat 52 which extend from a lower plate of the outer link plate 40 to face downward by 90 degrees and are oppositely arranged, a hinge shaft hole 510 through which one end of the hinge shaft 30 passes is provided on the hinge eye seat 51, and a hinge shaft hole 520 through which the other end of the hinge shaft 30 passes is provided on the hinge eye seat 52, thereby hinging the hinge end of the swing bracket 5 to the mounting bracket 4. The hinge eye seat 51 is provided with a mounting screw hole 511 spaced apart from the hinge hole 510 by the aforementioned arrangement distance L, and the hinge eye seat 52 is provided with a mounting screw hole 521 spaced apart from the hinge hole 520 by the aforementioned arrangement distance L. In the present embodiment, a plurality of mounting through holes 500 are provided on the outer connecting plate 50, and are connected with the turning plate 20 based on screws passing through them, thereby fixedly connecting the turning plate 20 to the swing support; the length directions of the hinge lug seat 51 and the hinge lug seat 52 extend to be approximately equal to the length direction of the outer connecting plate 50, so that a reinforcing rib plate is formed, the structural strength of the whole swing support 5 is improved, and the larger load bearing capacity is improved for the turning plate 20.

In the present embodiment, the hinge ear seat 40, the hinge ear seat 41, the hinge ear seat 50 and the hinge ear seat 51 are all flat plate structures, i.e. their side plate surfaces are all planar structures.

The process of mounting the oscillating support 5 on the mounting support 4 comprises the following steps:

(1) the screw 61 is screwed in from the end side of the screw hole 511 and passes through the screw hole 521 in a screwing manner, and the tail end of the screw rod extends out; a sleeve 62 with an internal thread and a spherical end is screwed onto the end of the screw 61, so as to form a tight press against the end side of the hinge lug 52, thus forming a lock nut structure. In this embodiment, the sleeve 62 is slightly smaller than the diameter of the pin hole 421, and the two form a clearance fit; in the present embodiment, the screw 61 and the sleeve 62 are combined to form the locking pin in the present embodiment, that is, the locking pin is fixed on the swing seat 5, and in addition, an integral locking pin may be adopted, and by using a structure that one end portion thereof is the same as the sleeve 62, and the other end portion thereof is a screw end portion adapted to a threaded hole provided on the swing seat 5, a nut screwed outside the screw end portion may be arranged to abut on an outer end surface of the hinge lug 51 in mounting.

(2) The plastic sleeve 31 is sleeved outside the hinge shaft 30 which is made of steel and has one end as an expansion end, the plastic sleeve and the plastic sleeve penetrate through the end side of the hinge lug seat 42, sequentially pass through the hinge shaft hole 420, the T-shaped plastic limit sleeve 63, the hinge shaft hole 520, the plastic lantern ring 64, the T-shaped plastic limit sleeve 65, the hinge shaft hole 521, the compression spring 66 and the hinge shaft hole 421, and are pressed to expand the end at the other end forming part of the hinge shaft 30 so as to fixedly connect the swing support 5 to the mounting support 4. In the step, based on the matching of the T-shaped plastic limit sleeve 63 and the plastic collar 64 with the T-shaped plastic limit sleeve 65, and the two T-shaped plastic limit sleeves are under the limit support of the plastic collar 64, part of sleeves extend out of the hinge hole, so that the outer end part of the T-shaped plastic limit sleeve 65 is pressed against the end part of the compression spring 66, and the outer end part of the T-shaped plastic limit sleeve 63 is pressed against the inner side surface of the hinge lug seat 42, thereby reducing the friction in the swinging process; and part of the sleeve pipe can extend out of the hinge shaft hole based on the interference fit of the T-shaped plastic limit sleeve and the hinge shaft hole. And the compression spring 55 is pressed between the hinge lug 51 and the hinge lug 41, i.e. one end of the compression spring 66 is pressed against the side surface of the swing support 5, and the other end is pressed against the inner side surface of the hinge lug 41, and the elastic restoring force thereof forces the swing support 5 to move towards the direction close to the hinge lug 42.

After the installation is completed, the pin hole 421 is located on the projection of the swing track formed by the sleeve 62 around the hinge shaft 30 on the inner side surface of the hinge ear seat 42, that is, on the projection of the swing track of the locking pin, and furthermore, the arc center line of the arc strip-shaped plane track 423 coincides with the center line of the projection of the swing track; during the swinging process, if the swinging support 5 is pushed away from the hinge ear seat 42 by no external force arranged along the transverse direction and the locking pin swings to a position aligned with the pin hole 421, that is, when the projection of the sleeve 62 on the inner side surface of the hinge ear seat 42 is completely covered by the pin hole 421, under the elastic restoring force of the compression spring 66, the swinging support 5 is driven to approach the hinge ear seat 42, so that the sleeve 62 moves along with the swinging support and is inserted into the pin hole 421, the swinging support 5 is prevented from swinging around the hinge shaft 30 continuously to lock the swinging support 5 at the position, that is, the swinging motion of the swinging support 5 around the hinge shaft is locked at the unfolding use position in the embodiment, that is, the locking pin and the pin hole 421 form the locking mechanism in the embodiment; and the rocking support 5 is located at the position nearest to the hinge lug 42 by the elastic restoring force of the compression spring 66, that is, the position of the rocking support 5 in the axial direction of the hinge shaft 30 is the locking position. At this point, the flap 20 is in the extended use position, supported by the swing support 5, and the table top is arranged horizontally for the flap-type table in this embodiment.

If it is desired to fold up the flap 20, as shown in fig. 8, a transverse pushing force is applied to the flap 20, and the pushing force F1 is applied to the swing support 5 through the flap 20, so that the swing support 5 moves transversely and away from the hinge lug 42, and the locking pin is pulled out from the pin hole 421 by moving transversely until the sleeve 62 is completely pulled out from the pin hole 421, and the swing support 5 can be driven to swing around the hinge shaft 30 again due to the absence of the blocking force; at this time, the swing bearing 5 is located at the unlock position in the present embodiment in the axial direction of the hinge shaft 30. That is, in the present embodiment, the plurality of folding brackets are arranged side by side and are configured such that their hinge axes are axially parallel, so that all the pivoting supports can be synchronously moved synchronously in the axial direction for synchronous unlocking or locking based on the connection of the flaps.

With the swing support 5 swinging downward through an angle θ to the position shown in fig. 9, the swing support 5 and the flap 20 are located together in the folded stowed position in the present embodiment, effectively reducing the floor space. At this time, if the hand is released, the locking pin abuts against the arc-shaped strip-shaped flat rail 423 by the elastic restoring force of the compression spring 66, and the structure is as shown in fig. 10. If the flap 20 needs to be opened and is in the unfolded use position, an upward swinging force is applied to the flap 20, so that the sleeve 62 is driven to slide to a position near the pin hole 421 along the arc-shaped strip-shaped plane track 423 and then slide to the pin hole 421 along the obliquely arranged guide surface to realize locking again.

In this embodiment, the height of the arc-shaped strip-shaped plane track 423 is equal to the length of the T-shaped plastic stop collar 63 extending out of the hinge hole 520, that is, before the locking movement is performed to abut against the arc-shaped strip-shaped plane track 423, the arc-shaped strip-shaped plane track 423 abuts against and contacts with the outer side surface of the hinge ear seat 52, so that the swinging stability thereof can be improved.

It can be seen from the above description of the working process that in the using process, the turning plate 20 is only needed to be grasped by one hand for operation, so that the folding and unfolding of the turning plate can be realized, the locking mechanism can be unlocked based on the pushing of the turning plate 20 along the transverse movement, namely, the turning plate 20 and the swing support 5 are utilized to construct the unlocking mechanism for driving the locking structure to unlock, so that the whole structure is simpler, and the structure is more compact.

In use, the hinge lug 42 together with the hinge lug 41 form a limit for the pivoting support 5 to move in the axial direction of the hinge shaft 30, so that it can only move back and forth between the unlocked position and the locked position, i.e. the hinge lug 42 forms a locking limit hinge lug in the present embodiment and the hinge lug 41 forms an unlocking limit hinge lug in the present embodiment.

Namely, the swing support 5 can be hinged on the mounting support 4 in a swinging manner between the unfolding use position and the folding and folding position, namely, the swing support can at least swing back and forth between the unfolding use position and the folding and folding position around the hinge shaft 30, and the swing support 5 can move back and forth between the unlocking position and the locking position along the axial direction of the hinge shaft 30; the elastic restoring force of the compression spring 66 is used to force the swing support to have a tendency to move to the locking position, and when the swing support is not acted by an external force, the swing support moves to the locking position, that is, the compression spring 66 constitutes a return spring in the embodiment, and the elastic restoring force of the return spring forces the swing support to move to the locking position along the axial direction.

In the present embodiment, the locking pins are arranged side by side in parallel with the hinge shaft 30 with a spacing therebetween in the axial direction perpendicular to the hinge shaft, so that during the support, one forms a support and the other forms a pull-down force, thereby providing the flap with an upward bearing capacity based on the principle of leverage.

When the swing support swings to the unfolding use position, the locking pin is located at the position aligned with the pin hole, and when the swing support is located at the locking position, the locking pin is provided with a rod section part inserted into the pin hole, and can be driven by the swing support to be completely pulled out of the pin hole when the swing support moves to the unlocking position.

Example 2

Referring to fig. 1, the flap table 1 of the present invention includes a vertical fixing plate 10 and a sliding unlocking type flap device 2 fixed on the vertical fixing plate 10 by a fastening screw 11. The sliding unlocking type flap device 2 comprises a flap 20 and a mounting bracket 21 used for mounting the flap 20 on the vertical fixing plate 10 in a turnover manner, the mounting bracket 21 comprises more than two folding brackets 3 which are arranged side by side, and the specific number of the folding brackets 3 is two. The vertical fixing plate 10 may be fixed to a wall or the like by fasteners such as expansion screws engaged with the hole structures 100 formed thereon, so that the turning plate 20 is substantially in a horizontal position when the folding brackets 3 are unfolded, thereby forming a horizontal table top of the turning plate type table 1, or the structure of the folding brackets 3 may be modified appropriately to form an inclined table top; the vertical fixing plate 10 constitutes the target object in this embodiment, and is used for installing the sliding unlocking type panel turnover device 2, and it may also be a main structure of a wall or a table, for example, a sub-table top board of a table with a main table top board may be constructed by using a panel turnover, and the sub-table top board is located beside the main table top board, so as to be able to be unfolded and to be spliced with the main table top board to enlarge the usable area of the table top, and also when only the main table top board is needed, the sub-table top board may be folded and folded to reduce the occupation of space.

As shown in fig. 11 to 17, the folding bracket 3 includes a mounting bracket 4, a swing bracket 5 whose fixed end is hinged on the mounting bracket 4 by a hinge shaft 30, and a locking mechanism for locking a swing state of the swing bracket 5 around the hinge shaft 30 at a target position.

The mounting bracket 4 includes a mounting base plate 40, and a hinge eyelet hole seat 41 and a hinge eyelet hole seat 42 which extend from an outer plate surface of the mounting base plate 40 to be bent outward by 90 degrees and are oppositely arranged, a hinge shaft hole 410 through which one end of the hinge shaft 30 passes is provided on the hinge eyelet hole seat 41, and a hinge shaft hole 420 through which the other end of the hinge shaft 30 passes is provided on the hinge eyelet hole seat 42, thereby fixedly mounting the hinge shaft 30 on the mounting bracket 4. A plurality of mounting through holes 400 are formed in the mounting base plate 40 for fastening screws to pass therethrough so as to fix the mounting bracket 4 to a target object such as the vertical fixing plate 10. The mounting support 4 can be formed by directly bending a whole steel plate body, and can also be formed by welding steel plate blocks cut by scattered blocks.

The hinge lug hole seat 42 is provided with hinge shaft holes 420 which are arranged side by side, pin holes 421 with a distribution distance L are arranged between the central axes of the hinge shaft holes and the pin holes, and an arc locking groove 423 is concavely formed in the inner side surface of the hinge lug seat 42, the arc central line of the arc locking groove 423 takes the central axis of the hinge shaft hole 420 as the center of a circle, the radius is equal to the distribution distance L, and the track width is equal to the hole diameter of the pin holes 421; correspondingly, an arc-shaped through hole 411 is formed in the hinge ear seat 41, an arc-shaped center line of the arc-shaped through hole 411 is centered on the central axis of the hinge shaft hole 420, and the radius of the arc-shaped through hole is equal to the arrangement distance L.

The swing bracket 5 includes an outer link plate 50, and a hinge eye seat 51 and a hinge eye seat 52 which extend from a lower plate of the outer link plate 40 to face downward by 90 degrees and are oppositely arranged, a hinge shaft hole 510 through which one end of the hinge shaft 30 passes is provided on the hinge eye seat 51, and a hinge shaft hole 520 through which the other end of the hinge shaft 30 passes is provided on the hinge eye seat 52, thereby hinging the hinge end of the swing bracket 5 to the mounting bracket 4. The guide hole 511 spaced apart from the hinge hole 510 by the aforementioned arrangement distance L is provided in the ear seat of the hinge eye seat 51, and the guide hole 521 spaced apart from the hinge hole 520 by the aforementioned arrangement distance L is provided in the hinge eye seat 52, and both the guide holes are arranged on the same center axis. In the present embodiment, a plurality of mounting through holes 500 are provided on the outer connecting plate 50, and are connected with the turning plate 20 based on screws passing through them, thereby fixedly connecting the turning plate 20 to the swing support; the length directions of the hinge lug seat 51 and the hinge lug seat 52 extend to be approximately equal to the length direction of the outer connecting plate 50, so that a reinforcing rib plate is formed, the structural strength of the whole swing support 5 is improved, and the larger load bearing capacity is improved for the turning plate 20.

In the present embodiment, the hinge ear seat 40, the hinge ear seat 41, the hinge ear seat 50 and the hinge ear seat 51 are all flat plate structures, i.e. their side plate surfaces are all planar structures.

The process of mounting the oscillating support 5 on the mounting support 4 comprises the following steps:

(1) one end of the locking pin 68 is inserted from the end of the arc-shaped through hole 411, and then passes through the guide hole 521, the locking pin comprises a rod part and an expansion joint 680 which is fixedly arranged at the central area of the rod part and has an outer diameter larger than the hole diameters of the guide hole 421 and the arc-shaped through hole 411, that is, in the embodiment, the arc-shaped through hole 411 also forms the guide hole of the locking pin 68; and a bias return spring, which is a compression spring 67, is fitted over the stem portion with one end pressing against the expansion joint 680.

(2) Penetrating a steel hinge shaft 30 with one end being an expansion end from the end side of the hinge lug seat 42, sequentially passing through a hinge shaft hole 420, a hinge shaft hole 520, a hinge shaft hole 521, an annular gasket 63, a compression spring 66 and a hinge shaft hole 421, and pressing to expand the end at the other end molding part of the hinge shaft 30 so as to fixedly connect the swing support 5 to the mounting support 4; and the compression spring 55 is pressed between the hinge lug seat 51 and the hinge lug seat 41, that is, one end of the compression spring 66 is pressed against the side surface of the swing support 5, the other end is pressed against the inner side surface of the hinge lug seat 41, and the elastic restoring force thereof forces the swing support 5 to move towards the direction close to the hinge lug seat 42; while the other end of the compression spring 67 is pressed against the inner side of the hinge lug 41.

After the installation is completed, the pin hole 421 is located on the projection of the swing track formed by the locking pin 68 around the hinge shaft 30 on the inner side surface of the hinge lug 42, that is, on the projection of the swing track of the locking pin 68, and furthermore, the arc-shaped center line of the arc-shaped locking groove 423 coincides with the center line of the projection of the swing track; during the swinging process, if the swinging support 5 is pushed away from the hinge ear seat 42 without external force arranged along the transverse direction, and the locking pin 68 swings to the position aligned with the pin hole 421, that is, the projection of the locking pin 68 on the inner side surface of the hinge ear seat 42 is completely covered by the pin hole 421, under the elastic restoring force of the compression spring 66, the swinging support 5 is driven to approach the hinge ear seat 42, and under the elastic restoring force of the compression spring 67, the expansion joint 680 is driven to be always kept to abut against the outer side surface of the hinge ear seat 51, so as to be inserted into the pin hole 421 as the swinging support 5 moves, the swinging support 5 is prevented from continuously swinging around the hinge shaft 30, so as to lock the swinging support 5 at the position, that is, the swinging motion of the swinging support 5 around the hinge shaft is locked at the unfolding use position in the embodiment, and the overall structure position is arranged as shown in fig. 13, that is, the locking pin 68 and the pin hole 421 together constitute the locking mechanism in this embodiment; and the rocking support 5 is located at the position nearest to the hinge lug 42 by the elastic restoring force of the compression spring 66, that is, the position of the rocking support 5 in the axial direction of the hinge shaft 30 is the locking position. At this point, the flap 20 is in the extended use position, supported by the swing support 5, and the table top is arranged horizontally for the flap-type table in this embodiment.

If it is desired to fold up the flap 20, as shown in fig. 1 and 14, a transverse pushing force is applied to the flap 20, and the pushing force applies a transverse pushing force F1 to the swing bracket 5 through the flap 20, so that the swing bracket 5 moves transversely and away from the hinge lug 42, and the locking pin is pulled out from the pin hole 421 by moving transversely until the locking pin 68 is completely pulled out from the pin hole 421, and the swing bracket 5 can be driven to swing around the hinge shaft 30 again due to the absence of a blocking force; at this time, the swing bearing 5 is located at the unlock position in the present embodiment in the axial direction of the hinge shaft 30.

With the swing support 5 swinging downward through the angle θ to the position shown in fig. 15, the swing support 5 and the flap 20 are located together in the folded stowed position in the present embodiment, effectively reducing the floor space. At this time, when the user releases his/her hand, the locking pin 68 is moved by the elastic restoring force of the compression spring 66 and inserted into the arc-shaped locking groove 423, and at this time, as shown in fig. 16, the folded and retracted state is locked, and the horizontal position of the flap is located at the extended use position, so that the outward protrusion of the flap 20 in the horizontal direction with respect to the boundary of the vertical fixing plate 10 is effectively prevented. If the flap 20 needs to be opened and is located at the unfolding use position, a transverse force F1 is firstly applied to the flap 20 to decouple the locking pin 68 from the arc-shaped locking groove 423, and then an upward swinging force is applied to drive the locking pin 68 to swing to be located outside the arc-shaped locking groove 423 and abut against the inner side surface of the hinge lug seat 42, so that the flap swings a certain angle and slides to be located at the position of the pin hole 421, and then the flap is inserted into the pin hole 421 to realize locking again. In the present embodiment, the locking pin 68 is inserted into the arcuate locking groove 423 to a depth equal to or greater than the depth of insertion thereof into the pin hole 421.

It can be seen from the above description of the working process that in the using process, the turning plate 20 is only needed to be grasped by one hand for operation, so that the folding and unfolding of the turning plate can be realized, the locking mechanism can be unlocked based on the pushing of the turning plate 20 along the transverse movement, namely, the turning plate 20 and the swing support 5 are utilized to construct the unlocking mechanism for driving the locking structure to unlock, so that the whole structure is simpler, and the structure is more compact.

In use, the hinge lug 42 together with the hinge lug 41 form a limit for the pivoting support 5 to move in the axial direction of the hinge shaft 30, so that it can only move back and forth between the unlocked position and the locked position, i.e. the hinge lug 42 forms a locking limit hinge lug in the present embodiment and the hinge lug 41 forms an unlocking limit hinge lug in the present embodiment.

Namely, the swing support 5 can be hinged on the mounting support 4 in a swinging manner between the unfolding use position and the folding and folding position, namely, the swing support can at least swing back and forth between the unfolding use position and the folding and folding position around the hinge shaft 30, and the swing support 5 can move back and forth between the unlocking position and the locking position along the axial direction of the hinge shaft 30; the elastic restoring force of the compression spring 66 is used to force the swing support 5 to have a tendency to move to the locking position when no external force is applied, that is, the compression spring 66 constitutes the return spring in the embodiment, and the elastic restoring force of the return spring forces the swing support to move to the locking position in the axial direction.

In the present embodiment, the locking pins are arranged side by side in parallel with the hinge shaft 30 with a spacing therebetween in the axial direction perpendicular to the hinge shaft, so that during the support, one forms a support and the other forms a pull-down force, thereby providing the flap with an upward bearing capacity based on the principle of leverage.

When the swing support is swung to the unfolding use position, the locking pin 68 is positioned to be aligned with the pin hole 421, and when the swing support 5 is positioned at the locking position, the locking pin 68 has a rod section part inserted into the pin hole, and the locking pin 68 is pressed by the elastic restoring force of the compression spring 67, so that the locking pin can be driven by the swing support 5 to be completely pulled out of the pin hole 421 when the swing support 5 is moved to the unlocking position.

Example 3

As a description of embodiment 3 of the present invention, only the differences from embodiment 2 will be described below.

Referring to fig. 17, in the present embodiment, the inner side surface of the locking hinge ear seat of the mounting seat 4 is a plane structure, i.e. a plane track in the swing track projection; at this time, if the swing support 5 is located at the folded and retracted position, under the elastic restoring force of the return spring, a thrust F2 in the axial direction of the hinge shaft 30 is applied to the swing support 5 through the washer 67, and the end surface of the locking pin 68 abuts against the inner side surface of the locking hinge lug to compress the return spring sleeved outside the locking pin; the expansion joint 680 pushes and presses a compression spring sleeved outside the locking pin to realize that the swing support 5 can be reset to a locking position, so that the flap fixedly arranged on the expansion joint can be positioned at the locking position in the axial direction of the hinge shaft 30 and is the same as the position when the flap is unfolded for use, and the position of the flap can be effectively prevented from being misplaced relative to the fixed position.

Example 4

As an explanation of embodiment 4 of the present invention, only the differences from embodiment 1 will be explained below.

Referring to the structure shown in fig. 8, in the present embodiment, the pin holes are provided in an open step surface structure, which may be a grooved surface or a planar surface structure, based on the locking pins 62 supported on the step surface structure during use. If the locking pin 62 is located on the upper side of the hinge shaft 30 as shown in fig. 8, it can directly abut on the upper end surface of the hinge lug 42, thereby supportively locking the swing bracket thereof in the deployed use position based on the supporting force thereof. That is, the locking pin constitutes a first coupling portion in the present embodiment, and the upper end surface of the step surface structure or the hinge lug for supporting the locking pin at the deployed use position constitutes a second coupling portion in the present embodiment, so that when the rocking holder is at the locking position and is rocked to the target position, the first coupling portion and the second coupling are vertically abutted, and the rocking holder is supportedly restrained at the target position; the first coupling part and the second coupling part can be driven by the action of moving the swing support to the unlocking position to be decoupled along the axial direction.

In the above embodiment, the mounting support 4 and the swing support 5 are both of a plate structure, and may also be constructed by other structures, for example, a mounting groove is machined on a block structure, and a hinge shaft hole and a pin hole are arranged on the mounting groove to construct the mounting support; the swing support is a rod body or a block body structure provided with a hole for mounting a locking pin and a through hole for the hinge shaft to pass through. The wall surface of the groove with the pin hole forms the wall blocking part in the embodiment, and the port of the pin hole is arranged on the wall surface of the wall blocking part; the specific structure of the wall surface of the retaining wall part can be a plane structure in the above embodiment, and a convex slideway, an arc-shaped locking groove or a locking hole which is matched with the locking pin is arranged on the plane structure; the wall surface is convexly provided with a convex plane track which is higher than the port at the projection position of the swing track, or the wall surface is a plane track which is level with the port at the front end part of the projection position of the swing track, the main body part of the projection position of the swing track is a convex plane track which is higher than the port and a locking groove for inserting a locking pin at the tail end part of the projection position of the swing track, or the wall surface is a locking groove for inserting the locking pin at the tail end part of the projection position of the swing track and a plane track which is level with the port at the rest part, or the wall surface is a locking arc-shaped groove for inserting the locking pin at the rear section part of the projection position of the swing track and a plane track which is level with the port; the swinging track projection is the projection of the track between the locking pin swinging from the unfolding use position to the folding storage position around the hinge shaft on the wall surface.

In the above-described embodiment, the return spring constructed using the compression spring constitutes the elastic return mechanism in the present embodiment, and the offset return spring constructed using the compression spring constitutes the elastic offset return mechanism in the present embodiment, and they may be constructed using, in addition to the compression spring in the above-described embodiment, a tension spring, the position of which may be laid at the right position of the hinge lug 42.

For the elastic reset mechanism and the elastic deviation reset mechanism, besides being constructed by adopting a spring, the elastic reset mechanism and the elastic deviation reset mechanism can also be constructed by adopting a pair of permanent magnet blocks with opposite and different homopolarities. With regard to the structure of the locking mechanism, in the above embodiment, in order to arrange the locking pin on the swing support, the pin hole is arranged on the mounting support; the locking pin can also be arranged on the mounting support, and the pin hole can be arranged on the swinging support.

Further, in the above-described embodiment, by providing the slot structure at the end of the swing locus projection, it is possible to make the compression amount of the compression spring not too large when folding the collapsed position; based on this, it is preferable to provide an arc-shaped groove section on the whole swing trajectory projection or at least on the rear section thereof, the arc-shaped groove section gradually decreases in groove depth along the direction close to the pin hole to form an obliquely arranged and smoothly extending leading-in and leading-out surface, and the arc-shaped groove section smoothly abuts on the wall surface where the pin hole is located or the end surface of the pin hole at the end close to the pin hole, so that the feeling of jerk during the swing can be effectively simplified. In addition, a plurality of pin holes matched with the locking pins can be arranged on the projection of the swing track at intervals, so that the turnover plate can be locked at different angle positions.

In the present invention, the "unfolding position of use" constitutes the "target unfolding position", and the "folding position of retraction" constitutes the "target folding position", wherein the "target unfolding position" and the "target folding position" are relative, and only the included angle between the target unfolding position and the target folding position is larger; in the above embodiment, the target deployed position is where the swing support is disposed at an angle of 90 degrees relative to the mounting support, and the target folded position is where the angle is acute, typically within 45 degrees, and preferably the swing support is folded to be disposed vertically.

In the present invention, "locking" is configured to be able to limit the swing bearing at the target position; preferably it remains stationary at the target location as long as the locking mechanism is not broken.

Claims (10)

1. A sliding unlocking type folding bracket comprises a mounting support, a swinging support and a locking mechanism, wherein the swinging support can be hinged to the mounting support in a swinging mode between a target unfolding position and a target folding position, the locking mechanism is used for unlocking and locking the swinging support at the target position, and the target position is the target unfolding position and/or the target folding position; the method is characterized in that:

the swing support can move back and forth between an unlocking position and a locking position along the axial direction of the hinge shaft; an elastic reset mechanism is arranged on the mounting support, and the elastic restoring force of the elastic reset mechanism forces the swinging support to move to the locking position along the axial direction;

when the swinging support swings to the target position and the swinging support is located at the locking position, the locking mechanism is in a locking state, and the locking state of the locking mechanism can be driven by the action that the swinging support moves to the unlocking position along the axial direction to be converted to an unlocking state.

2. The slide unlocked folding bracket of claim 1, wherein:

the locking mechanism comprises a locking pin and a pin hole which are inserted and matched along the axial direction; one of the mounting support and the swinging support is provided with the locking pin, and the other one is provided with the pin hole; when the swinging support is swung to the target position, the locking pin is located at a position aligned with the pin hole, when the swinging support is located at the locking position, the locking pin is provided with a rod section part inserted in the pin hole, and the insertion connection state between the locking pin and the pin hole can be driven by the action of moving the swinging support to the unlocking position to be completely decoupled.

3. The slide unlocked folding bracket of claim 2, wherein:

a wall part is arranged on the other one of the pin holes, and the end opening of the pin hole is arranged on the wall surface of the wall part; the wall surface is provided with an arc-shaped groove section at the middle-rear section of the swing track projection; the arc-shaped groove section is gradually shallow along the direction close to the pin hole to form a leading-in and leading-out surface of the locking pin;

the projection of the swing track is the projection of the swing track of the locking pin around the hinge shaft relative to the other one on the wall surface in the process that the swing support swings around the hinge shaft from the target unfolding position to the target folding position.

4. The slide unlocked folding bracket of claim 2, wherein:

the pin holes are distributed on the mounting support, and the locking pins are fixed on the swinging support;

the mounting support comprises a mounting bottom plate, and a locking limiting hinge lug seat and an unlocking limiting hinge lug seat which extend outwards from the outer plate surface of the mounting bottom plate and are oppositely arranged; hinge shaft holes matched with the end parts of the hinge shafts are formed in the locking limiting hinge lug seat and the unlocking limiting hinge lug seat;

the pin holes are arranged on the unlocking limit hinged lug seats.

5. The slide unlocked folding bracket of claim 4, wherein:

the locking pin is provided with a thread part fixedly connected with the rod section part and is used for being matched with an installation screw hole arranged on the swinging support so as to fixedly connect the locking pin to the swinging support;

the inner side surface of the unlocking limit hinge lug seat is of a flat plate surface structure; the flat plate surface structure is at least provided with an arc groove section or a locking hole matched with the locking pin at the tail end position of the swinging track projection; the projection of the swing track is the projection of the swing track of the locking pin relative to the other pin around the hinge shaft on the flat plate surface structure in the process that the swing support swings around the hinge shaft from the target unfolding position to the target folding position.

6. The slide unlocked folding bracket of claim 1, wherein:

the locking mechanism comprises a first coupling part protruding from the side surface of one of the mounting support and the swinging support and a second coupling part arranged on the other one of the mounting support and the swinging support;

when the swinging support is in the locking position and swings to the target position, the first coupling part and the second coupling part vertically abut against each other to support and limit the swinging support at the target position;

the first coupling part and the second coupling part can be driven by the action of moving the swing support to the unlocking position to be decoupled along the axial direction.

7. The slide unlocked folding bracket according to any one of claims 1 to 6, wherein:

the elastic reset mechanism is a compression spring sleeved outside the hinge shaft, one end of the compression spring is pressed against the side surface of the swinging support, and the other end of the compression spring is pressed against the mounting support; a rotary isolating gasket movably sleeved outside the hinge shaft is padded between the end part of the compression spring and the side surface of the swing support; or the like, or, alternatively,

the elastic reset mechanism is a pair of annular permanent magnets which are oppositely arranged in the same pole, the two annular permanent magnets are sleeved outside the hinge shaft, the outer end face of one annular permanent magnet is pressed against the side face of the swinging support, and the outer end face of the other annular permanent magnet is pressed against the mounting support.

8. The slide unlocked folding bracket according to any one of claims 1 to 6, wherein:

the sliding unlocking type folding supports are arranged side by side, and the swinging supports of the sliding unlocking type folding supports are fixedly connected into a rigid body capable of synchronously moving along the axial direction based on the fixedly connected rigid members.

9. A support stand, comprising two or more side-by-side arranged folding stands, said folding stands being slide unlocked folding stands according to any one of claims 1 to 7;

and based on the fixed connection of the rigid members, the swing supports of the more than two folding supports arranged side by side are fixedly connected into a rigid body capable of synchronously moving along the axial direction.

10. A desk with turnover table top board comprises two folding supports which are arranged side by side and used for installing the turnover table top board, and is characterized in that:

the folding bracket is a sliding unlocking type folding bracket as claimed in any one of claims 1 to 7.

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