CN110338566A

CN110338566A - A kind of tea table for preventing article from falling

Info

Publication number: CN110338566A
Application number: CN201910685255.9A
Authority: CN
Inventors: 凌卫康
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-07-27
Filing date: 2019-07-27
Publication date: 2019-10-18

Abstract

The invention belongs to tea table technical fields, more particularly to a kind of tea table for preventing article from falling, it includes desktop, bracket, table leg, latch mechanism, thing in use if be accidentally put on the side of tea table by the tea table, and article it is heavier when, article will pull down the first desktop by self gravity or second desk board makes the relatively intermediate desktop of the first desktop or second desk board to lower swing, so that bracket exposes with respect to the first desktop and second desk board, plays the role of limitation to the thing being put on tea table side and skid off desktop；Relative to traditional tea table, which has the function of that the thing for preventing from being put on tea table side is fallen, while in cleaning, as long as article is picked up, desktop will rise, and bracket and desktop are in face of neat, with the beneficial effect for being convenient to clean sundries.

Description

A kind of tea table for preventing article from falling

Technical field

The invention belongs to tea table technical field more particularly to a kind of tea tables for preventing article from falling.

Background technique

Tea table is furniture indispensable in the modern life at present, and tea table, which primarily serves, places teacup, appliance for infusing tea, water Fruit, fruit knife, ashtray, the effect for the common items in life such as spending；Many times when putting article on tea table, thing can be put Onto the side of tea table, if just having can when accidentally touching the article being placed on tea table side or when accidentally touching tea table The article being placed on tea table side can be caused to fall；So that article knock it is bad or by floor gouge；It can be to prevent so designing one kind The tea table that only article is fallen is necessary.The present invention design a kind of tea table for preventing article from falling solve the problems, such as it is as above.

Summary of the invention

To solve drawbacks described above in the prior art, the present invention discloses a kind of tea table for preventing article from falling, it is to use Following technical scheme is realized.

A kind of tea table for preventing article from falling, it is characterised in that: it includes tea table desktop, bracket, table leg, latch mechanism, A cambered surface is had on four medial surfaces of middle bracket, cambered surface can guarantee that two the first desktops and two second desk boards exist It will not be interfered with four sides of bracket in swing process；It is fixedly installed with one respectively on four corners on the downside of bracket Table leg, tea table desktop is rack-mount, and limit Q-RING is fixedly mounted on the downside on bracket and being located at four cambered surfaces；Limit Q-RING plays position-limiting action to two the first desktops and two second desk boards, so that two the first desktops and two second desk boards It is swung to downwards when be in same level with intermediate desktop, limiting Q-RING can be to two the first desktops and two second Desktop plays support restriction effect；Latch mechanism is rack-mount；Partition is installed, and partition is located at four between four table legs The lower end of table leg；Some common articles can be placed on partition.

Supporting shell is fixedly mounted between four above-mentioned table legs by four third fixed links；A left side is provided on the inside of fixed block The sliding slot of right perforation, the square groove that front and back penetrates through is provided on the inside of fixed block, and square groove is communicated with sliding slot；The lower end of fixed block is logical It crosses and is slidably installed in supporting shell, and be symmetrically equipped between the downside of fixed block and the interior upper surface of supporting shell Two return springs；The effect of return spring is to play reset response to fixed block；When people need to step on the upper of tea table desktop When side, since human body weight is larger, two the first desktops and two second desk boards occur during people step in order to prevent Reciprocally swinging, so that two the first desktops, two second desk boards and intermediate desktop are impaired, while if two the first desktops and two A second desk board is stepped on to after contacting with limit Q-RING, can bear a part of gravity by limiting Q-RING, and another Part gravity needs the hinge by connecting between two the first desktops and two second desk boards and intermediate desktop to bear, so that Hinge is impaired；So control latch mechanism first makes tea table desktop lock when people need to step on the upside of tea table desktop, two A first desktop and two second desk boards the swing of centre desktop, tea table desktop just will not will drive latch mechanism one relatively after stress It rises and moves down, i.e., fixed block also and then moves down, and fixed block moves down will compression retracteding position spring；When two the first tables After plate and two second desk boards contacts with limit Q-RING, a part of gravity is born by limiting Q-RING, and another part Gravity is passed it on fixed block by latch mechanism, and fixed block is transmitted on four table legs by return spring and supporting shell； Ensure that people at the upside for tea table desktop of stepping on, the stability of tea table desktop, while decreasing the impaired of tea table.

Above-mentioned tea table desktop is made of the intermediate desktop of two the first desktops, two second desk boards and one, intermediate desktop A third inclined-plane is had on four sides of downside, the lower end of intermediate desktop is fixedly mounted on the upside of fixed block；Two First desktop and two second desk boards are trapezoidal shape, and are provided with one on the short side and two bevel edges on the downside of two the first desktops A second inclined-plane is provided with first inclined-plane, two the first desktops on the short side and two bevel edges on the downside of two second desk boards Downside be provided with second escape groove, the downside of two second desk boards is provided with first escape groove；Two the first tables The short end of plate is symmetrically mounted at the left and right sides of intermediate desktop by hinge；The short side of two second desk boards is symmetrical by hinge Ground is mounted on the front and rear sides of intermediate desktop；Two the first desktops, two second desk boards and one intermediate desktop composition one complete Whole tea table desktop, and it is tight between mutually matched side in the intermediate desktop of two the first desktops, two second desk boards and one Contiguity touching；Prevent from spilling the downside that water on the table penetrates into tea table；The article that downside is placed is drenched；Opened on first desktop The effect on the third inclined-plane opened on the first inclined-plane and intermediate desktop opened on two inclined-planes, second desk board is to guarantee two first Desktop and two second desk boards will not interfere during relatively intermediate desktop is swung with intermediate desktop；Two the first tables There are two symmetrical leaf springs for installation between side corresponding on fixed block respectively for plate and two second desk boards；The work of leaf spring With being to play reset response to two the first desktops and two second desk boards；Two the first desktops and two second desk boards and bracket Four medial surfaces on the cambered surface corresponding matching opened；Two the first desktops and two second desk boards and limit Q-RING cooperation.

Above-mentioned latch mechanism include gag lever post, the first supporting block, limit plate, the second supporting block, the first protrusion, the first notch, Second protrusion, the second notch, wherein one end of gag lever post is equipped with the first protrusion, and the upper one end close to gag lever post of the first protrusion is opened There is the first notch, the other end of gag lever post is equipped with the second protrusion, and the upper one end far from gag lever post of the second protrusion is provided with second and lacks Mouthful；Gag lever post is mounted on fixed block by the sliding slot opened on fixed block, and the first protrusion and the second protrusion on gag lever post With the second escape groove corresponding matching opened on two the first desktops；In the relatively intermediate desktop of two the first desktops to lower swing In the process, two the first desktops occur with the first protrusion and the second protrusion installed on gag lever post during the swing in order to prevent Interfere, so having second escape groove on two the first desktops in the present invention, is avoided by the second escape groove Two the first desktops are interfered with the first protrusion installed on gag lever post and the second protrusion during the swing；Limit plate is fixed It is mounted on gag lever post, and limit plate passes through the square groove opened on fixed block；On the both ends of limit plate and two second desk boards The the first escape groove corresponding matching opened；During the relatively intermediate desktop of two second desk boards is to lower swing, in order to prevent Two second desk boards are interfered with the limit plate installed on gag lever post during the swing, so two in the present invention second First escape groove is had on desktop, avoided by the first escape groove two second desk boards during the swing with limit The both ends of position plate interfere；Two the first supporting blocks are symmetrically mounted at the downside of two the first desktops, and two first The first protrusion and the cooperation of the first notch installed in one of them in bracer and gag lever post, another is lacked with the second protrusion and second Mouth corresponding matching；In the present invention in normal state, one of them in two the first supporting blocks with installed on gag lever post first The first notch cooperation in protrusion, the second notch corresponding matching in another and the second protrusion, prevents two the first desktops from existing Two the first supporting blocks mounted thereto occur with the first protrusion and the second protrusion being mounted on gag lever post in swing process Interference；When needing to lock to the first desktop, control gag lever post is mobile, and gag lever post movement will to be mounted on gag lever post First protrusion is not provided with the one end for not being provided with the second notch on one end and the second protrusion of the first notch and is mounted on two first Two the first supporting blocks correspondence on desktop is engaged, and plays branch to two the first desktops by the first protrusion and the second protrusion Support effect；Two the second supporting blocks are symmetrically mounted at the downside of two second desk boards, and two the second supporting blocks are located at Corresponding first escape groove side；The both ends corresponding matching of two the second supporting blocks and limit plate；It is needing in the present invention to When two desktops are locked, control gag lever post is mobile, and gag lever post movement will make the limit plate being mounted on gag lever post and be mounted on Two the second supporting blocks correspondence on two second desk boards is engaged, and is played by the both ends of limit plate to two second desk boards Supporting role.

By the locked state for controlling the mobile control latch mechanism of gag lever post.

As the further improvement of this technology, the inside of above-mentioned supporting shell is symmetrically opened there are two limit sliding chutes；Fixed block It symmetrically installs there are two sliding block the two sides of lower end；Fixed block is fitted to branch by two sliding blocks and two limit sliding chutes It supports on shell；Guiding role is played to fixed block by the cooperation of two sliding blocks and two limit sliding chutes.

Respectively symmetrically install that there are two the as the further improvement of this technology, in the left and right sides of above-mentioned fixed block One mounting plate；Second mounting plate there are two respectively symmetrically being installed on the front and rear sides face of fixed block；It is mounted on fixed block left One end that the leaf spring of right two sides is connect with fixed block is fixedly mounted on the first mounting plate, is mounted on the plate of fixed block front and rear sides One end that spring is connect with fixed block is fixedly mounted on the downside of the second mounting plate.

As the further improvement of this technology, fixed plate is mounted on above-mentioned fixed block, and thread bush has internal screw thread, screw thread Set is fixedly mounted on the downside of fixed plate, has external screw thread on screw rod, and one end of screw rod is mounted on gag lever post by being rotatably assorted On, it is cooperatively connected between screw rod and the internal screw thread of thread bush by internal and external threads, handle is mounted on the other end of screw rod；Turning handle Hand, so that handle drives screw rod rotation, since thread bush is fixedly mounted in fixed plate, be in rotation or traversing direction Stationary, so screw rod rotation will make screw rod move along the axis of thread bush, screw rod is mobile to drive gag lever post mobile.

As the further improvement of this technology, above-mentioned fixed plate is by being mounted on two the first mounting plates of fixed block side It is mounted on fixed block.

As the further improvement of this technology, above-mentioned fixed plate is mounted on above-mentioned fixed block, and the side of mounting shell is provided with Square orifice, mounting shell are fixedly mounted on the downside of fixed plate by L shape；Guide sleeve is mounted on L shape by the first fixed link and fixes； Guide sleeve plays guiding role to rack gear；The lower end of rack gear is equipped with spring retaining plate, and rack gear is mounted on fixed plate by guide sleeve Downside, and spring retaining plate is slidably matched with mounting shell；It is equipped between lower end surface on the inside of spring retaining plate and mounting shell multiple Position spring；Reset spring plays reset response to rack gear；One end nesting of pedal is mounted on mounting shell, and pedal and rack gear are solid Fixed connection；Fixed rotating shaft is mounted in the first fixed link by the second fixed link, and gear is mounted on fixation by one-way clutch In shaft；The effect of one-way clutch is to guarantee that pedal gear during moving down can drive fixed rotating shaft to rotate, And pedal resets gear during moving up under the action of reset spring and fixed rotating shaft will not be driven to rotate；Gear and tooth Item engagement；It is connected between fixed rotating shaft and gag lever post by slider-crank mechanism；Stepping on pedal downwards moves down pedal, Pedal move down band carry-over bar moves down, rack gear move down will sliding tooth wheel rotation, gear rotation will pass through song Handle slide block mechanism drives gag lever post mobile.

As the further improvement of this technology, one end of rocking bar is fixedly mounted on above-mentioned fixed rotating shaft, one end of swing rod The other end of rocking bar is mounted on by hinged mode, one end of link block is fixedly mounted on gag lever post, link block it is another End is connect with the other end of swing rod by revolute pair；Fixed rotating shaft rotation drives rocking bar rotation, and rocking bar rotation drives swing rod to swing, Swing rod swings the moving direction sliding that will be drivingly connected block along gag lever post, and link block sliding drives gag lever post sliding.

As the further improvement of this technology, isolation elastic plate is mounted at the square orifice of above-mentioned mounting shell；To reset bullet Spring plays buffer action.

As the further improvement of this technology, there are two position-limit mechanisms for the downside installation of above-mentioned fixed plate；Gag lever post and solid First spring is installed between fixed board；Snap-gauge is mounted on gag lever post, and snap-gauge and two position-limit mechanisms cooperate.

Above-mentioned position-limit mechanism includes limited block, limit shell, limit spring, and limit shell is fixedly mounted on the downside of fixed plate, One end of limited block has symmetrical inclined-plane, and the other end of limited block is mounted in limit shell, and limited block is located in limit shell One end and limit shell inner face between limit spring is installed.

In the present invention when stepping on pedal downwards, pedal can control gag lever post by rack gear, gear and slider-crank mechanism Mobile, gag lever post is mobile to drive clamp moving, if pedal is completely by lower side of stepping on, tea table desktop is locked, under this state, Snap-gauge will be moved to the side of another position-limit mechanism, snap-gauge in the side of one of position-limit mechanism from two position-limit mechanisms The limited block in corresponding position-limit mechanism can be squeezed in moving process, so that limited block is towards limiting slot medial movement, in snap-gauge When crossing corresponding limited block, limit shell will be removed under the action of the limit spring of limited block again, and limits shell to limit The position of block limit and limited block collide and issue the sound, and people can judge the locked state of tea table desktop according to the sound, If pedal is not floored completely when being operated, at this moment, snap-gauge one of from two position-limit mechanisms cannot be limited The side of position mechanism is moved to the side of another position-limit mechanism, rests between two position-limit mechanisms, under this state, first Spring reversely will pull fixture block that fixture block is moved back, and gag lever post returns to original state, i.e., latch mechanism resets；Pass through the first bullet Spring can guarantee latch mechanism when pedal is not stepped on lower side completely, and gag lever post can automatically restore under original state, guarantee Tea table desktop is in unlocked state, facilitates next use.

Above-mentioned two limited block can guarantee to cross when snap-gauge for the limited block that original state does not cooperate with snap-gauge Behind the limited block side, the pulling of the first spring will not make snap-gauge be detached from the limited block, but the power of pedal-driven is enough to make It obtains snap-gauge and is detached from limited block.For the limited block of original state and snap-gauge cooperation, guarantee only under the effect of the first spring, snap-gauge Can a layback from the limited block towards another limited block to the limited block back to the side of another limited block.Above-mentioned limited block Functional specification is guaranteed by designing the wedge angle inclined-plane of limited block.

Linkage rod slide block mechanism is constituted by rocking bar, swing rod and link block in the present invention, pedal completely steps downwards once, Rack drives gear rotates 180 degree, and gear band shakes bar rotation 180 degree, and link block drives the snap-gauge on gag lever post to limit from two The side of a position-limit mechanism of relatively close intermediate desktop is moved to another the other side in the mechanism of position, i.e. gag lever post is mobile Primary locking, pedal step once still further below, and link block drives the snap-gauge on gag lever post to be relatively distant from from two position-limit mechanisms The side of one position-limit mechanism of intermediate desktop is moved to another the other side, i.e. gag lever post mobile primary unlock again is stepped on Plate steps downwards the locking of a tea table desktop.Pedal steps a tea table desktop unlock still further below.

As the further improvement of this technology, above-mentioned first spring is extension spring.

Relative to traditional tea table technology, the tea table that the present invention designs is in use if accidentally put thing In on the side of tea table, and when article is heavier, article, which will pull down the first desktop or second desk board by self gravity, to be made The relatively intermediate desktop of the first desktop or second desk board is obtained to lower swing, so that bracket reveals with respect to the first desktop and second desk board Out, play the role of limitation to the thing being put on tea table side to slide；Having relative to traditional tea table tea table prevents from being put in The effect that thing on tea table side is fallen, if thing is fallen traditional tea table in order to prevent, can be simple on the side of tea table Increase an annular protrusion, then the small sundries on tea table will be stuck on annular protrusion when clearing up tea table, It cannot be wiped by rag from desktop edge.If necessary to clear up tea table, the article on tea table is taken away first, to the first table Plate and second desk board lose pressure and from movable pendulum after, rag cleaning tea table can be just commonly used, because of bracket and desktop in cleaning It flushes, can normally clear up.If people do not like the deformation swing of tea table desktop, control latch mechanism makes on tea table desktop Lock, tea table desktop will not deform, and people can clear up tea table, will not be because of making two the in scale removal process One desktop and two second desk board stress are to lower swing, so that bracket is with respect to two the first desktops and two second desk board protrusions, Influence tea table cleaning, the present invention in when needing to step on tea table, by control latch mechanism make tea table desktop lock, then It is played a supporting role by rack-mount limit Q-RING and four table legs to tea table desktop, ensure that people are stepping on When the upside of tea table desktop, the stability of tea table desktop, while decreasing the impaired of tea table.

Detailed description of the invention

Fig. 1 is global facility appearance diagram.

Fig. 2 is global facility distribution schematic diagram.

Fig. 3 is bracket scheme of installation.

Fig. 4 is latch mechanism distribution schematic diagram.

Fig. 5 is latch mechanism scheme of installation.

Fig. 6 is limit Q-RING scheme of installation.

Fig. 7 is supporting shell distribution schematic diagram.

Fig. 8 is supporting shell structural schematic diagram.

Fig. 9 is the first desktop, second desk board and intermediate desktop distribution schematic diagram.

Figure 10 is second desk board structural schematic diagram.

Figure 11 is the first table board structure schematic diagram.

Figure 12 is fixed block scheme of installation.

Figure 13 is limit plate scheme of installation.

Figure 14 is gag lever post scheme of installation.

Figure 15 is fixed-block-architecture (FBA) schematic diagram.

Figure 16 is gag lever post and the first supporting block cooperation schematic diagram.

Figure 17 is leaf spring scheme of installation.

Figure 18 is fixed plate scheme of installation.

Figure 19 is mounting shell scheme of installation.

Figure 20 is gear scheme of installation.

Figure 21 is mounting shell structural schematic diagram.

Figure 22 is wheel and rack cooperation schematic diagram.

Figure 23 is reset spring scheme of installation.

Figure 24 is supporting shell scheme of installation.

Figure 25 is return spring scheme of installation.

Figure 26 is one-way clutch scheme of installation.

Figure 27 is position-limit mechanism distribution schematic diagram.

Figure 28 is position-limit mechanism structural schematic diagram.

Figure 29 is gag lever post driving schematic diagram.

Figure label title: 1, tea table desktop；2, bracket；3, table leg；4, partition；5, latch mechanism；6, Q-RING is limited；7, Cambered surface；8, supporting shell；9, the first desktop；10, intermediate desktop；11, second desk board；12, hinge；13, the first inclined-plane；14, first Escape groove；15, the second inclined-plane；16, the second escape groove；17, gag lever post；18, fixed block；19, the first supporting block；20, limit plate； 21, the second supporting block；22, the first spring；23, the first protrusion；24, the first notch；25, the second protrusion；26, the second notch；27, First mounting plate；28, the second mounting plate；29, leaf spring；30, fixed plate；31, mounting shell；32, rack gear；33, gear；34, first Fixed link；35, L shape is fixed；36, the second fixed link；37, guide sleeve；38, pedal；39, square orifice；40, link block；41, swing rod； 42, rocking bar；43, elastic plate is isolated；44, spring retaining plate；45, reset spring；46, third fixed link；47, return spring；48, Limit sliding chutes；49, sliding block；50, square groove；51, sliding slot；52, one-way clutch；53, position-limit mechanism；54, limited block；55, it limits Position shell；56, limit spring；57, fixed rotating shaft；58, snap-gauge；59, screw rod；60, thread bush；61, handle；62, third inclined-plane.

Specific embodiment

With reference to the accompanying drawings and examples, specific embodiments of the present invention will be described in further detail.Implement below Example or attached drawing are not intended to limit the scope of the invention for illustrating the present invention.

As shown in Figure 1, 2, it includes tea table desktop 1, bracket 2, table leg 3, latch mechanism 5, wherein as shown in figure 3, bracket 2 A cambered surface 7 is had on four medial surfaces, cambered surface 7 can guarantee that two the first desktops 9 and two second desk boards 11 are being put It will not be interfered with four sides of bracket 2 during dynamic；It is fixedly installed with one respectively on four corners of 2 downside of bracket Table leg 3, as shown in Figure 5,6, tea table desktop 1 are mounted on bracket 2, and as shown in Fig. 3,7, limit Q-RING 6 is fixedly mounted on branch Downside on frame 2 and positioned at four cambered surfaces 7；Limit Q-RING 6 plays limit to two the first desktops 9 and two second desk boards 11 Effect, so that two the first desktops 9 and two second desk boards 11 are swung to downwards is in same level with intermediate desktop 10 When, limit Q-RING 6 can play support restriction effect to two the first desktops 9 and two second desk boards 11；Such as Fig. 4,5 institutes Show, latch mechanism 5 is mounted on bracket 2；Partition 4 is installed, and partition 4 is located at the lower end of four table legs 3 between four table legs 3； Some common articles can be placed on partition 4.

As shown in Fig. 7,24, supporting shell 8 is fixedly mounted between four above-mentioned table legs 3 by four third fixed links 46； As shown in figure 15, the inside of fixed block 18 is provided with the sliding slot 51 of left and right perforation, and the inside of fixed block 18 is provided with the side that front and back penetrates through Shape slot 50, square groove 50 are communicated with sliding slot 51；As shown in figure 25, the lower end of fixed block 18 is by being slidably installed in supporting shell In 8, and symmetrically there are two return springs 47 for installation between the downside of fixed block 18 and the interior upper surface of supporting shell 8；It returns The effect of position spring 47 is to play reset response to fixed block 18；When people need to step on the upside of tea table desktop 1, due to people Body weight is larger, and reciprocally swinging occurs during people step on for two the first desktops 9 and two second desk boards 11 in order to prevent, So that two the first desktops, 9, two second desk boards 11 and intermediate desktop 10 are impaired, while if two the first desktops 9 and two Second desk board 11 is stepped on to after contacting with limit Q-RING 6, can bear a part of gravity by limiting Q-RING 6, and another A part of gravity need the hinge 12 by being connected between two the first desktops 9 and two second desk boards 11 and intermediate desktop 10 come It bears, so that hinge 12 is impaired；So control latch mechanism 5 first makes tea when people need to step on the upside of tea table desktop 1 Several desktops 1 are locked, two the first desktops 9 and two second desk boards 11 will not relatively intermediate desktop 10 swing, tea table desktop 1 by It just will drive latch mechanism 5 after power to move downwardly together, i.e., fixed block 18 also and then moves down, and fixed block 18 moves down will Compression retracteding position spring 47；After two the first desktops 9 and two second desk boards 11 and limit Q-RING 6 contact, by limit side Shape ring 6 bears a part of gravity, and another part gravity is passed it on fixed block 18 by latch mechanism 5, fixed block 18 It is transmitted on four table legs 3 by return spring 47 and supporting shell 8；Ensure that people at the upside for tea table desktop 1 of stepping on, tea The stability of several desktops 1, while decreasing the impaired of tea table.

As shown in Figure 8,9, above-mentioned tea table desktop 1 is by two the first desktops, 9, two second desk boards 11 and an intermediate table Plate 10 forms, as shown in figure 9, having a third inclined-plane 62, intermediate desktop 10 on four sides of 10 downside of intermediate desktop Lower end be fixedly mounted on the upside of fixed block 18；As shown in Figure 10,11, two the first desktops 9 and two second desk boards 11 are equal For trapezoidal shape, and second inclined-plane 15, two the second tables are provided on the short side and two bevel edges of two 9 downsides of the first desktops It is provided with first inclined-plane 13 on the short side and two bevel edges of 11 downside of plate, the downside of two the first desktops 9 is provided with one Second escape groove 16, the downside of two second desk boards 11 are provided with first escape groove 14；The short end of two the first desktops 9 is logical Cross the left and right sides that hinge 12 is symmetrically mounted at intermediate desktop 10；The short side of two second desk boards 11 passes through hinge 12 symmetrically It is mounted on the front and rear sides of intermediate desktop 10；Two the first desktops, 9, two second desk boards 11 and an intermediate composition of desktop 10 one A complete tea table desktop 1, and it is mutually matched in two the first desktops, 9, two second desk boards 11 and an intermediate desktop 10 It is in close contact between side；Prevent from spilling the downside that water on the table penetrates into tea table；The article that downside is placed is drenched；First desktop The third inclined-plane opened on the first inclined-plane 13 and intermediate desktop 10 opened on the second inclined-plane 15 for being opened on 9, second desk board 11 62 effect is to guarantee that two the first desktops 9 and two second desk boards 11 will not be with during relatively intermediate desktop 10 is swung Intermediate desktop 10 interferes；As shown in figure 17, two the first desktops 9 and two second desk boards 11 respectively with it is right on fixed block 18 There are two symmetrical leaf springs 29 for installation between the side answered；The effect of leaf spring 29 is to two the first desktops 9 and two Two desktops 11 play reset response；It is opened on four medial surfaces of two the first desktops 9 and two second desk boards 11 and bracket 2 7 corresponding matching of cambered surface；Two the first desktops 9 and two second desk boards 11 and limit Q-RING 6 cooperate.

As shown in figure 16, above-mentioned latch mechanism 5 includes gag lever post 17, the first supporting block 19, limit plate 20, the second supporting block 21, the first protrusion 23, the first notch 24, the second protrusion 25, the second notch 26, wherein it is convex to be equipped with first for one end of gag lever post 17 23 are played, one end of close gag lever post 17 is provided with the first notch 24 in the first protrusion 23, and the other end of gag lever post 17 is equipped with second Protrusion 25, one end in the second protrusion 25 far from gag lever post 17 are provided with the second notch 26；As shown in Figure 12,14, gag lever post 17 is logical It crosses the sliding slot 51 opened on fixed block 18 to be mounted on fixed block 18, and the first protrusion 23 and the second protrusion 25 on gag lever post 17 With 16 corresponding matching of the second escape groove opened on two the first desktops 9；It is downward in the relatively intermediate desktop 10 of two the first desktops 9 During swing, in order to prevent two the first desktops 9 during the swing with installed on gag lever post 17 first protrusion 23 and Second protrusion 25 interferes, so having second escape groove 16 on the first desktop of two in the present invention 9, passes through Second escape groove 16 come avoid two the first desktops 9 during the swing with installed on gag lever post 17 first protrusion 23 and second Protrusion 25 interferes；As shown in figure 16, limit plate 20 is fixedly mounted on gag lever post 17, and as shown in figure 13, limit plate 20 The square groove 50 opened on fixed block 18；The first escape groove opened on the both ends of limit plate 20 and two second desk boards 11 14 corresponding matchings；During the relatively intermediate desktop 10 of two second desk boards 11 is to lower swing, two the second tables in order to prevent Plate 11 is interfered with the limit plate 20 installed on gag lever post 17 during the swing, so two in the present invention second desk board First escape groove 14 is had on 11, and two second desk boards 11 are avoided by the first escape groove 14 during the swing It is interfered with the both ends of limit plate 20；As shown in figure 12, two the first supporting blocks 19 are symmetrically mounted at two the first desktops 9 Downside, and one of them in two the first supporting blocks 19 with installed on gag lever post 17 first protrusion 23 and first notch 24 match It closes, another and the second protrusion 25 and 26 corresponding matching of the second notch；In the present invention in normal state, two the first supporting blocks The first notch 24 cooperation in the first protrusion 23 installed in one of them in 19 and gag lever post 17, another and the second protrusion 25 On 26 corresponding matching of the second notch, prevent two the first desktops 9, two first supports mounted thereto during the swing Block 19 is interfered with the first protrusion 23 being mounted on gag lever post 17 and the second protrusion 25；It is needing to lock to the first desktop 9 When, control gag lever post 17 is mobile, and 17 movement of gag lever post will make the first protrusion 23 being mounted on gag lever post 17 not be provided with the Two for not being provided with one end of the second notch 26 on one end of one notch 24 and the second protrusion 25 and being mounted on two the first desktops 9 A correspondence of first supporting block 19 is engaged, and plays support by the first protrusion 23 and second raised 25 pairs two the first desktops 9 Effect；Two the second supporting blocks 21 are symmetrically mounted at the downside of two second desk boards 11, and two the second supporting block 21 difference Positioned at corresponding first escape groove, 14 side；The both ends corresponding matching of two second supporting blocks 21 and limit plate 20；In the present invention When needing to lock to second desk board 11, control gag lever post 17 is mobile, and 17 movement of gag lever post will to be mounted on gag lever post 17 On limit plate 20 it is corresponding with two the second supporting blocks 21 being mounted on two second desk boards 11 be engaged, pass through limit plate It plays a supporting role to two second desk boards 11 at 20 both ends.

By the locked state for controlling the mobile control latch mechanism 5 of gag lever post 17.

As shown in Figure 25,15, the inside of above-mentioned supporting shell 8 is symmetrically opened there are two limit sliding chutes 48；18 lower end of fixed block Two sides symmetrically install there are two sliding block 49；Fixed block 18 is coupled by two sliding blocks 49 and two limit sliding chutes 48 In supporting shell 8；Guiding role is played to fixed block 18 by the cooperation of two sliding blocks 49 and two limit sliding chutes 51.

As shown in figure 17, the first mounting plate there are two respectively symmetrically being installed in the left and right sides of above-mentioned fixed block 18 27；Second mounting plate 28 there are two respectively symmetrically being installed on the front and rear sides face of fixed block 18；It is mounted on fixed block 18 or so One end that the leaf spring 29 of two sides is connect with fixed block 18 is fixedly mounted on the first mounting plate 27, is mounted on 18 front and back two of fixed block One end that the leaf spring 29 of side is connect with fixed block 18 is fixedly mounted on the downside of the second mounting plate 28.

As shown in figure 29, fixed plate 30 is mounted on above-mentioned fixed block 18, and thread bush 60 has internal screw thread, and thread bush 60 is solid Dingan County is mounted in the downside of fixed plate 30, has external screw thread on screw rod, and one end of screw rod is mounted on gag lever post 17 by being rotatably assorted On, it is cooperatively connected between screw rod and the internal screw thread of thread bush 60 by internal and external threads, handle 61 is mounted on the other end of screw rod；Turn Dynamic handle 61, so that handle 61 drives screw rod rotation, since thread bush 60 is fixedly mounted in fixed plate 30, in rotation or cross It moves on direction and is in stationary, so screw rod rotation will make screw rod move along the axis of thread bush 60, screw rod is mobile Drive gag lever post 17 mobile.

As shown in figure 18, above-mentioned fixed plate 30 is mounted on by being mounted on two the first mounting plates 27 of 18 side of fixed block On fixed block 18.

Above-mentioned fixed plate 30 is mounted on above-mentioned fixed block 18, and as shown in figure 21, the side of mounting shell 31 is provided with square orifice 39, as shown in figure 19, mounting shell 31 fixes 35 downsides for being mounted on fixed plate 30 by L shape；As shown in figure 20, guide sleeve 37 passes through First fixed link 34 is mounted on L shape and fixes on 35；Guide sleeve 37 plays guiding role to rack gear 32；As shown in figure 23, rack gear 32 Lower end is equipped with spring retaining plate 44, and rack gear 32 is mounted on the downside of fixed plate, and spring retaining plate 44 and peace by guide sleeve 37 Dress shell 31 is slidably matched；Reset spring 45 is installed between the lower end surface of 31 inside of spring retaining plate 44 and mounting shell；Reset bullet Spring 45 plays reset response to rack gear 32；As shown in figure 22, one end nesting of pedal 38 is mounted on mounting shell 31, and pedal 38 It is fixedly connected with rack gear 32；Fixed rotating shaft 57 is mounted in the first fixed link 34 by the second fixed link 36, as shown in figure 26, tooth Wheel 33 is mounted on fixed rotating shaft 57 by one-way clutch 52；The effect of one-way clutch 52 is to guarantee pedal 38 to moving down Gear 33 can drive fixed rotating shaft 57 to rotate in dynamic process, and pedal 38 is resetted under the action of reset spring 45 to moving up Gear 33 will not drive fixed rotating shaft 57 to rotate in dynamic process；Gear 33 is engaged with rack gear 32；Fixed rotating shaft 57 and gag lever post It is connected between 17 by slider-crank mechanism；Stepping on pedal 38 downwards moves down pedal 38, and pedal 38 moves down band Carry-over bar 32 moves down, and rack gear 32, which moves down, will drive gear 33 to rotate, and the rotation of gear 33 will pass through crank block Mechanism drives gag lever post 17 mobile.

As shown in figure 22, one end of rocking bar 42 is fixedly mounted on above-mentioned fixed rotating shaft 57, and one end of swing rod 41 passes through hinge The mode connect is mounted on the other end of rocking bar 42, and one end of link block 40 is fixedly mounted on gag lever post 17, link block 40 it is another One end is connect with the other end of swing rod 41 by revolute pair；The rotation of fixed rotating shaft 57 drives rocking bar 42 to rotate, and rocking bar 42 rotates band Movable pendulum bar 41 is swung, and swing rod 41 swings the moving direction sliding that will be drivingly connected block 40 along gag lever post 17, and link block 40 is sliding It is dynamic that gag lever post 17 is driven to slide.

As shown in Figure 22,23, isolation elastic plate 43 is mounted at the square orifice 39 of above-mentioned mounting shell 31；To reset spring 45 Play buffer action.

As shown in figure 27, there are two position-limit mechanisms 53 for the downside installation of above-mentioned fixed plate；Between gag lever post 17 and fixed plate First spring 22 is installed；Snap-gauge 58 is mounted on gag lever post 17, and snap-gauge 58 and two position-limit mechanisms 53 cooperate；

As shown in figure 28, above-mentioned position-limit mechanism 53 includes limited block 54, limit shell 55, limit spring 56, the fixed peace of limit shell 55 Mounted in the downside of fixed plate, one end of limited block 54 has symmetrical inclined-plane, and the other end of limited block 54 is mounted on limit shell 55 It is interior, and limit spring 56 is installed between the inner face of the one end and limit shell 55 of limited block 54 in limit shell 55.

In the present invention when stepping on pedal 38 downwards, pedal 38 can pass through rack gear 32, gear 33 and slider-crank mechanism control Gag lever post 17 processed is mobile, and gag lever post 17 is mobile to drive snap-gauge 58 mobile, if pedal 38 is completely by lower side of stepping on, tea table desktop 1 locks, and under this state, snap-gauge 58 will be moved to separately the side of one of position-limit mechanism 53 from two position-limit mechanisms 53 The side of one position-limit mechanism 53, snap-gauge 58 can squeeze the limited block 54 in corresponding position-limit mechanism 53 in moving process, so that Limited block 54 towards limit 55 medial movement of shell, when snap-gauge 58 crosses corresponding limited block 54, the limit spring of limited block 54 Limit shell 55 will be removed under the action of 56 again, and limits shell 55 and the position that limited block 54 limits is touched with limited block 54 The sending sound is hit, people can judge the locked state of tea table desktop 1 according to the sound, if pedal 38 is not complete when being operated It is floored entirely, at this moment, snap-gauge 58 cannot be moved to the side of one of position-limit mechanism 53 from two position-limit mechanisms 53 The side of another position-limit mechanism 53 rests between two position-limit mechanisms 53, and under this state, the first spring 22 will be reversed Pull snap-gauge that fixture block is moved back, gag lever post 17 returns to original state, i.e., latch mechanism 5 resets；It can be with by the first spring 22 Guarantee latch mechanism 5 when pedal 38 is not stepped on lower side completely, gag lever post 17 can automatically restore under original state, guarantee tea Several desktops 1 are in unlocked state, facilitate next use.

Linkage rod slide block mechanism is constituted by rocking bar 42, swing rod 41 and link block 40 in the present invention, pedal 38 is complete downwards It steps once, rack gear 32 rotates 180 degree with moving gear 33, and gear 33 drives rocking bar 42 to rotate 180 degree, and link block 40, which drives, to be limited The side of the position-limit mechanism 53 of relatively close intermediate desktop 10 from two position-limit mechanisms 53 of snap-gauge 58 on bar 17 is mobile To another the other side, the i.e. mobile primary locking of gag lever post 17, pedal 38 steps once still further below, and link block 40 drives limit The side that snap-gauge 58 on bar 17 is relatively distant from a position-limit mechanism 53 of intermediate desktop 10 from two position-limit mechanisms 53 is mobile To another the other side, i.e., mobile primary unlock, i.e. pedal 38 step downwards the upper of a tea table desktop 1 to gag lever post 17 again Lock, pedal 38 step a tea table desktop 1 still further below and unlock.

Above-mentioned first spring 22 is extension spring.

In summary: it is that the present invention designs the utility model has the advantages that the tea table in use, if accidentally thing put In on the side of tea table, and when article is heavier, article will pull down the first desktop 9 or second desk board 11 by self gravity So that the relatively intermediate desktop 10 of the first desktop 9 or second desk board 11 is to lower swing, so that bracket 2 is with respect to the first desktop 9 and the Two desktops 11 expose, and play the role of limitation to the thing being put on tea table side and slide；Relative to traditional tea table, tea table tool The thing for playing the role of preventing from being put on tea table side is fallen.If thing is fallen traditional tea table in order to prevent, can be simple Increase an annular protrusion on the side of tea table, then the small sundries on tea table will be stuck in when clearing up tea table On annular protrusion, it cannot be wiped by rag from desktop edge.If necessary to clear up tea table, the article on tea table is taken first Walk, after the first desktop and second desk board lose pressure and from movable pendulum after, can just commonly use rag cleaning tea table, in cleaning because Bracket is flushed with desktop, can normally be cleared up.If people do not like the deformation swing of tea table desktop 1, control latch mechanism 5 makes Tea table desktop 1 is locked, and tea table desktop 1 will not deform, and people can clear up tea table, will not be because of in scale removal process In make two the first desktops 9 and two 11 stress of second desk board make bracket 2 with respect to two the first desktops 9 and two to lower swing 11 protrusion of a second desk board, influences the cleaning of tea table, in the present invention when on the tea table desktop that needs to step on, passes through control latch mechanism 5 make tea table desktop 1 lock, and are then risen by the limit Q-RING 6 being mounted on bracket 2 and four table legs 3 to tea table desktop 1 To supporting role, ensure that people at the upside for tea table desktop 1 of stepping on, the stability of tea table desktop 1, while decreasing tea Several is impaired.

Specific workflow: there are two types of the execution structure tools of latch mechanism of the present invention, is divided into embodiment 1 according to two kinds and implements Example 2.

Embodiment one: when the tea table designed using the present invention, in use if be accidentally put in thing On the side of tea table, and when article is heavier, article, which will pull down the first desktop 9 or second desk board 11 by self gravity, to be made The relatively intermediate desktop 10 of the first desktop 9 or second desk board 11 is obtained to lower swing, so that bracket 2 is with respect to the first desktop 9 and second 11 protrusion of desktop, plays the role of limitation to the thing being put on tea table side and slides, prevent the thing being put on tea table side from falling； And in use, if necessary to cleaning tea table, the article on tea table is taken away first, to the first desktop and second desk board Lose pressure and from movable pendulum after, can just commonly use rag cleaning tea table, can be normal because bracket is flushed with desktop in cleaning Cleaning.If people do not like tea table desktop 1 deformation swing, in this case, step on downwards pedal 38 make pedal 38 to Lower movement, pedal 38 move down band carry-over bar 32 and move down, and rack gear 32, which moves down, will drive gear 33 to rotate, gear 33 rotations just will drive the rotation of fixed rotating shaft 57, and the rotation of fixed rotating shaft 57 drives rocking bar 42 to rotate, and the rotation of rocking bar 42 drives swing rod 41 swing, and swing rod 41 swings the moving direction sliding that will be drivingly connected block 40 along gag lever post 17, and the sliding of link block 40 drives Gag lever post 17 slides；17 movement of gag lever post will make the first protrusion 23 being mounted on gag lever post 17 not be provided with the first notch 24 One end and the second protrusion 25 on be not provided with one end of the second notch 26 and be mounted on two the first desktops 9 two first The correspondence of bracer 19 is engaged, and is played a supporting role by the first protrusion 23 and second raised 25 pairs two the first desktops 9；Simultaneously 17 movement of gag lever post will make the limit plate being mounted on gag lever post 17 20 and be mounted on two second desk boards 11 two Second supporting block 21 correspondence is engaged, and is played a supporting role by the both ends of limit plate 20 to two second desk boards 11；So that Tea table desktop 1 is locked, and is tea table after locking with traditional tea table other than desktop has small angle different, using as being 's；In locking, tea table desktop 1 will not deform, and no matter whether have article on desktop, desktop is not become What shape was swung, when cleaning, can normally clear up, will not be because of making two the first desktops 9 and two the second tables in scale removal process 11 stress of plate makes bracket 2 with respect to two the first desktops 9 and two 11 protrusions of second desk board to lower swing, influences the clear of tea table Reason；For tea table, inevitably it is taken as supporter and steps on to take eminence article, when people need tea table of stepping on When the upside of plate 1, in order to guarantee that there is tea table enough intensity can support human body weight, control latch mechanism 5 first makes tea Several desktops 1 are locked, two the first desktops 9 and two second desk boards 11 will not relatively intermediate desktop 10 swing, after stepping on, tea table Desktop 1 just will drive latch mechanism 5 in stress and move downwardly together, i.e., fixed block 18 also and then moves down, and fixed block 18 is downward Movement will compression retracteding position spring 47；After two the first desktops 9 and two second desk boards 11 and limit Q-RING 6 contact, lead to Limit Q-RING 6 is crossed to bear a part of gravity, and another part gravity is passed it on fixed block 18 by latch mechanism 5, Fixed block 18 is transmitted on four table legs 3 by return spring 47 and supporting shell 8；It ensure that people in tea table desktop 1 of stepping on When upside, the stability of tea table desktop 1, while decreasing the impaired of tea table.

Embodiment two: the latch mechanism in embodiment one being replaced, screw motion is become, according to needing in embodiment one The case where locking, when needing to lock, swing handle 61 is pacified so that handle 61 drives screw rod rotation since thread bush 60 is fixed In fixed plate 30, in stationary in rotation or traversing direction, so screw rod rotation will make screw rod along The axis of thread bush 60 is mobile, and screw rod is mobile to drive gag lever post 17 mobile；17 movement of gag lever post will to be mounted on gag lever post The first protrusion 23 on 17 be not provided be not provided on one end and the second protrusion 25 of the first notch 24 one end of second notch 26 with Two the first supporting blocks 19 correspondence being mounted on two the first desktops 9 is engaged, and passes through the first protrusion 23 and the second protrusion 25 pairs two the first desktops 9 are played a supporting role；17 movement of gag lever post simultaneously will make the limit being mounted on gag lever post 17 Plate 20 is corresponding with two the second supporting blocks 21 being mounted on two second desk boards 11 to be engaged, and passes through the both ends of limit plate 20 It plays a supporting role to two second desk boards 11, so that tea table desktop 1 is locked.

Claims

1. a kind of tea table for preventing article from falling, it is characterised in that: it includes tea table desktop, bracket, table leg, latch mechanism, wherein A cambered surface is had on four medial surfaces of bracket, is fixedly installed with a table respectively on four corners on the downside of bracket Leg, tea table desktop is rack-mount, and limit Q-RING is fixedly mounted on the downside on bracket and being located at four cambered surfaces；Latch mechanism It is rack-mount；Partition is installed, and partition is located at the lower end of four table legs between four table legs；

Supporting shell is fixedly mounted between four above-mentioned table legs by four third fixed links；Left and right is provided on the inside of fixed block to pass through Logical sliding slot, the square groove that front and back penetrates through is provided on the inside of fixed block, and square groove is communicated with sliding slot；The lower end of fixed block passes through cunning It is dynamic to be fitted in supporting shell, and between the downside of fixed block and the interior upper surface of supporting shell symmetrically there are two installations Return spring；

Above-mentioned tea table desktop is made of the intermediate desktop of two the first desktops, two second desk boards and one, on the downside of intermediate desktop Four sides on have a third inclined-plane, the lower end of intermediate desktop is fixedly mounted on the upside of fixed block；Two first Desktop and two second desk boards are trapezoidal shape, and one is provided on the short side and two bevel edges on the downside of two the first desktops Two inclined-planes, are provided with first inclined-plane on the short side and two bevel edges on the downside of two second desk boards, under two the first desktops Side is provided with second escape groove, and the downside of two second desk boards is provided with first escape groove；Two the first desktops Short side is symmetrically mounted at the left and right sides of intermediate desktop by hinge；The short end of two second desk boards is symmetrically pacified by hinge Mounted in the front and rear sides of intermediate desktop；Two the first desktops and two second desk boards are respectively between side corresponding on fixed block There are two symmetrical leaf springs for installation；It is opened on four medial surfaces of two the first desktops and two second desk boards and bracket Cambered surface corresponding matching；Two the first desktops and two second desk boards and limit Q-RING cooperation；

Above-mentioned latch mechanism includes gag lever post, the first supporting block, limit plate, the second supporting block, the first protrusion, the first notch, second Protrusion, the second notch, wherein one end of gag lever post is equipped with the first protrusion, and the upper one end close to gag lever post of the first protrusion is provided with the One notch, the other end of gag lever post are equipped with the second protrusion, and the upper one end far from gag lever post of the second protrusion is provided with the second notch；Limit Position bar is mounted on fixed block by the sliding slot opened on fixed block, and the first protrusion and the second protrusion on gag lever post and two The the second escape groove corresponding matching opened on first desktop；Limit plate is fixedly mounted on gag lever post, and limit plate is passed through and fixed The square groove opened on block；The the first escape groove corresponding matching opened on the both ends of limit plate and two second desk boards；Two One supporting block is symmetrically mounted at the downside of two the first desktops, and one of them in two the first supporting blocks with pacify on gag lever post Dress first protrusion and the second notch cooperation, another and second protrusion and the second notch corresponding matching；Two the second supporting blocks It is symmetrically mounted at the downside of two second desk boards, and two the second supporting blocks are located at corresponding first escape groove side； The both ends corresponding matching of two the second supporting blocks and limit plate；

2. a kind of tea table for preventing article from falling according to claim 1, it is characterised in that: the inside of above-mentioned supporting shell is right Limit sliding chutes there are two opening with claiming；It symmetrically installs there are two sliding block the two sides of lower end of fixing block；Fixed block passes through two sliding blocks With being fitted in supporting shell for two limit sliding chutes.

3. according to claim 1 or a kind of tea table for preventing article from falling as claimed in claim 2, it is characterised in that: above-mentioned solid Determine respectively symmetrically to install that there are two the first mounting plates in the left and right sides of block；On the front and rear sides face of fixed block respectively symmetrically There are two the second mounting plates for ground installation；It is mounted on one end fixed installation that the leaf spring of the left and right sides on fixed block is connect with fixed block On the first mounting plate, it is mounted on the leaf spring of fixed block front and rear sides and one end that fixed block is connect is fixedly mounted on the second installation On the downside of plate.

4. according to claim 1 or a kind of tea table for preventing article from falling as claimed in claim 2, it is characterised in that: fixed plate It is mounted on above-mentioned fixed block, thread bush has internal screw thread, and thread bush is fixedly mounted on the downside of fixed plate, has on screw rod outer One end of screw thread, screw rod is mounted on gag lever post by being rotatably assorted, and passes through inside and outside spiral shell between screw rod and the internal screw thread of thread bush Line is cooperatively connected, and handle is mounted on the other end of screw rod.

5. a kind of tea table for preventing article from falling according to claim 4, it is characterised in that: above-mentioned fixed plate passes through installation Two the first mounting plates in fixed block side are mounted on fixed block.

6. a kind of tea table for preventing article from falling according to claim 4, it is characterised in that: above-mentioned fixed plate is mounted on It states on fixed block, the side of mounting shell is provided with square orifice, and mounting shell is fixedly mounted on the downside of fixed plate by L shape；Guide sleeve is logical The first fixed link is crossed to be mounted in the fixation of L shape；The lower end of rack gear is equipped with spring retaining plate, and rack gear is mounted on fixation by guide sleeve The downside of plate, and spring retaining plate is slidably matched with mounting shell；It is installed between lower end surface on the inside of spring retaining plate and mounting shell There is reset spring；One end nesting of pedal is mounted on mounting shell, and pedal is fixedly connected with rack gear；Fixed rotating shaft passes through second Fixed link is mounted in the first fixed link, and gear is mounted on fixed rotating shaft by one-way clutch；Wheel and rack engagement；Gu Determine to connect between shaft and gag lever post by slider-crank mechanism.

7. a kind of tea table for preventing article from falling according to claim 6, it is characterised in that: one end of rocking bar is fixedly mounted On above-mentioned fixed rotating shaft, one end of swing rod is mounted on the other end of rocking bar by hinged mode, and one end of link block is fixed It is mounted on gag lever post, the other end of link block and the other end of swing rod are connected by revolute pair.

8. a kind of tea table for preventing article from falling according to claim 6, it is characterised in that: the square orifice of above-mentioned mounting shell Place is mounted on isolation elastic plate.

9. a kind of tea table for preventing article from falling according to claim 6, it is characterised in that: pacify the downside of above-mentioned fixed plate There are two position-limit mechanisms for dress；First spring is installed between gag lever post and fixed plate；Snap-gauge is mounted on gag lever post, and snap-gauge with Two position-limit mechanism cooperations；

Above-mentioned position-limit mechanism includes limited block, limit shell, limit spring, and limit shell is fixedly mounted on the downside of fixed plate, limit One end of block has symmetrical inclined-plane, and the other end of limited block is mounted in limit shell, and limited block is located at one in limit shell Limit spring is installed between end and the inner face of limit shell.

10. a kind of tea table for preventing article from falling according to claim 9, it is characterised in that: above-mentioned first spring is to draw Stretch spring.