CN101849736B

CN101849736B - Auxiliary lifting device for lifting tea table

Info

Publication number: CN101849736B
Application number: CN2010102036616A
Authority: CN
Inventors: 张勇
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-06-17
Filing date: 2010-06-17
Publication date: 2012-04-04
Anticipated expiration: 2030-06-17
Also published as: CN101849736A

Abstract

The invention discloses an auxiliary lifting device for a lifting tea table. The auxiliary lifting device comprises a control wheel, a chute and a sliding body in the chute, wherein a locking body is positioned in the middle of two sliding racks in the chute, and the middle part of the locking body is provided with a locking hole running from top to bottom; the bottom of the front end of a locking rod is an inclined plane; a locking tooth is positioned in the locking hole and hinged with the locking body, and the other end of the locking tooth is provided with an inclined plane and a sharp tooth; the inclined plane is attached to the inclined plane at the front end of the locking rod; the bottom of the sharp tooth is provided with a spring; pinions in two pairs of gears are mutually meshed, and two gearwheels are meshed with the two sliding racks respectively; and the sharp tooth on the locking tooth is embedded in a tooth space of a pinion. The auxiliary lifting device can ensure quick sliding of the sliding body and also can control quick positioning of sliding positions because a ratchet structure is formed by matching the locking tooth, the locking rod and a gear set. When the table top of the tea table is lifted, the table top is uplifted to a required height; and when the table top of the tea table is descended, the locking rod is pushed, the table top is pressed downwards to the required height and the locking rod is pulled out.

Description

A kind of auxiliary lifting device of lifting tea table

Technical field

The present invention relates to tea table, particularly a kind of auxiliary lifting device of lifting tea table.

Background technology

Common tea table is level altitude, in order to enlarge the scope of application of tea table, is suitable for all ages and classes or different height human needs, perhaps with uses such as tea table double as dining table, desk, workbench, often need the several times height of tea table be regulated.The Lift Part of now common lifting tea table, the one, adopting four legs is the structure of sleeve pipe, and internal and external casing slides up and down relatively, and internal and external casing is provided with lockhole, through the height after the slip of kayser locking internal and external casing, reaches the adjusting purpose of several times height.Another kind is to adopt hinged leg structure, cuts with scissors mutually in one through cross one another two groups of legs, regulates and cuts with scissors angle mutually, and is again that two groups of legs are locked, promptly reaches the purpose of adjustable height.Also have a kind of Chinese patent close with the invention structure; The patent No. be 02202820.X's " can rise tea table "; It is provided with chute on base plate, load onto roller with the lower end of the hinged leg of desktop, and this roller can roll in chute; About revolve the screw two ends and connect four legs respectively, about to revolve screw affixed with control wheel both sides.Through Spin Control wheel, realize action that four legs are regained or got out, thereby reach the purpose of up-down several times height.Above-mentioned preceding two kinds up-down accessory, simple in structure, action need is regulated separately each leg sometimes, and is very inconvenient, often has the phenomenon that retaining mechanism work is not in place or lock is not tight to take place, and reliability is not high.Aforementioned the third with two the former compare and improve to some extent, only need to rotate the control wheel and just can reach the purpose of regulating four leg height simultaneously.But this patent is the purpose that reaches the height of final adjusting leg through rotation screw and screw mandrel, therefore, and can not the quick adjustment height.Simultaneously, owing to lack non-return mechanism, difficult that the several times height is locked, reliability is not high.

Summary of the invention

The objective of the invention is to overcome the deficiency that above-mentioned prior art exists, a kind of auxiliary lifting device of the lifting tea table that the several times height is quick, functional reliability is higher that goes up and down is provided.

The technical scheme that the present invention adopted is: comprise the slide mass of controlling wheel, chute and being positioned at chute; Slide mass and chute are slidingly matched; Said slide mass is formed by sliding rack with the tooth bar connector that sliding rack is pegged graft; Two sliding racks lay respectively at both sides in the chute, two tooth bar connectors each other away from; The kayser body is positioned in the middle of chute two sliding racks, and the center is provided with is used to the lockhole that leads to up and down, and its bottom is provided with axial locking bar groove, and this locking bar groove and lockhole are used to lead to; Locking bar bar portion be embedded in the set opening of chute one end and with locking bar groove that this opening communicates in, and be slidingly matched with opening and locking bar groove on the chute, the locking bar front end is arranged in lockhole, the bottom of locking bar front end is the inclined-plane, the locking bar rear end is provided with baffle plate, baffle plate is positioned at outside the chute; The lock tooth is arranged in lockhole, and lock tooth one end is installed with hinge and hinged with the kayser body, and the lock tooth other end is provided with inclined-plane and pointed tooth, and this inclined-plane pastes with the inclined-plane of locking bar front end mutually, and the one side of this pointed tooth is the inclined-plane, and another side is a facade, and the pointed tooth bottom is placed with spring; The medial recess of chute two lateral edges, lid is pulled with the chute base plate and is spirally connected, and the medial recess position of cover plate bottom surface and chute two lateral edges constitutes the sideslip groove; Tooth bar connector bottom is sliding chamber, and the lower edge in sliding chamber is that a pair of inwardly protruded cunning is colluded, and sliding colluding is positioned at the sideslip groove and is slidingly matched with the sideslip groove, and the roof of sliding the chamber cooperates with the cover plate slide, and tooth bar connector top is provided with the connection axis hole; Said control wheel is gear train; Gear train is positioned at two sliding racks top, chute middle part, and gear train is made up of the gear of two pairs of same structures, and every pair of gear is made up of two in-line gears that vary in size; Pinion in the two pairs of gears is meshing with each other; Gear wheel and the corresponding one by one engagement of sliding rack, the pointed tooth on the lock tooth is embedded in the between cog of a pinion, and the two ends of gear train middle gear axle are contained in respectively in the bearing on the gearcase side plate; Gear train is contained in the gearcase, and the gearcase lower end is fixed on the chute side.

The bottom of said sliding rack is provided with ball grooves, and ball is housed in the ball grooves.

The present invention has adopted chute and the structure that is positioned at the slide mass of chute; And slide mass and chute are slidingly matched, and therefore under the situation of no external intervention, the slip physical efficiency is slided fast; Promptly; Two slide masses are slide in opposition or mutually from sliding fast, thus drive be hinged on the slide mass two ends several legs separately or draw in, realize the purpose of up-down several times then.In order to guarantee the normal slip of slide mass and can to lock easily at any time; Invariant position after guaranteeing to slide; The present invention adopts lock tooth, locking bar and the gear train formation ratchet structure that matches; This ratchet structure can guarantee that not only slide mass slides fast, also can control the quick location of sliding position simultaneously.

Description of drawings

Fig. 1 is the schematic perspective view of the embodiment of the invention;

Fig. 2 is the STRUCTURE DECOMPOSITION sketch map of Fig. 1;

Fig. 3 is the structural representation after the embodiment of the invention takes down gear train, gearcase and cover plate;

Fig. 4 is the local enlarged diagram of Fig. 3;

Fig. 5 locks the sketch map that tooth, locking bar and spring match in the embodiment of the invention;

Fig. 6 is the local enlarged diagram of the STRUCTURE DECOMPOSITION of Fig. 5;

Fig. 7 is embodiment of the invention middle gear and the local enlarged diagram of locking the tooth mated condition;

Fig. 8 is the structural representation of slide mass in the embodiment of the invention;

Fig. 9 is the STRUCTURE DECOMPOSITION sketch map of Fig. 8;

Figure 10 is the STRUCTURE DECOMPOSITION sketch map of embodiment of the invention middle gear group and gearcase;

Figure 11 is the structural representation of kayser body bottom in the embodiment of the invention.

The specific embodiment

Below in conjunction with accompanying drawing and embodiment the present invention is done further explain, but do not constitute any restriction of the present invention.Fig. 1, Fig. 2, Fig. 3 and shown in Figure 4; The present invention is the basis with chute 1, and slide mass, kayser body 6, locking bar 10, lock tooth 8, spring 7 and hinge 9 are housed in chute 1, and chute 1 top is bolted with two cover plates 4; In the middle of two cover plates 4 gearcase 5 is housed, gearcase 5 is spirally connected with chute 1 both sides.Fig. 5 and shown in Figure 6; Locking bar 10 front ends upwarp, and the bottom of locking bar 10 front ends is the inclined-plane, and the inclined-plane of lock set inclined-plane of tooth 8 one sides and locking bar 10 front ends fits; The front end of lock tooth 8 opposite sides is provided with the pointed tooth of epirelief; Lock tooth 8 rear ends are provided with hinge axis hole, and hinge 9 is packed in the hinge axis hole, and the bottom of lock tooth 8 front ends is placed with spring 7.Fig. 2, Fig. 3, Fig. 4 and shown in Figure 11; Locking bar 10, lock tooth 8, hinge 9 and spring 7 are packed into by above-mentioned assembly relation integral body in the lockhole at kayser body 6 middle parts; Pack in the axis hole of lockhole inwall both sides in hinge 9 two ends; Locking bar 10 bar portions are contained in the interior opening that also passes through chute 1 one side bottoms of locking bar groove of kayser body 6 bottoms, and the set baffle plate in locking bar 10 rear ends is positioned at outside the chute 1, and locking bar 10 bar portions and locking bar groove and chute 1 bottom opening are slidingly matched.Fig. 7 and shown in Figure 10; The gear train that is contained in the gearcase 5 is made up of two pairs of coaxial large and

small gears

15,14; Pinion 14 in the every pair of gear is meshing with each other; The two ends of every rooted tooth wheel shaft lay respectively in the bearing 13 on the two gearcase side plates 12, and after installing, the pointed tooth of lock tooth 8 just in time is positioned at the between cog of pinion 14.Fig. 8 and shown in Figure 9; Slide mass is made up of sliding rack 2 and tooth bar connector 3; Two sliding racks 2 are contained in chute 1 interior kayser body 6 both sides respectively and form wrong symmetrical structure; An end close with chute 1 end is respectively equipped with the square hole of pegging graft with tooth bar connector 3 on two sliding racks 2; After tooth bar connector 3 was pegged graft with sliding rack 2, the cunning on the sliding chamber, its underpart was colluded and is embedded in the sideslip groove 1 that is formed by chute 1 liang of lateral edges medial recess position and cover plate 4, and cover plate 4 is spirally connected through kayser body 6 and chute 1 base plate.In order to reduce friction, also can ball grooves be set in sliding rack 2 bottoms, load onto ball 11 in the ball grooves.After above-mentioned installation, its course of work is following: with the bottom of hinged tea table leg through jointed shaft respectively with tooth bar connector 3 on to be connected axis hole hinged.When needs rising tea table desktop, lift desktop on directly and get final product to the height that needs.On when lifting desktop; Distance between desktop and the tea table leg strengthens; Draw in the compelled retraction of the hinged tea table leg of desktop, thereby drive sliding rack 2 slide in opposition, gear wheel 15 rotations in the slip band moving gear group of sliding rack 2 in every group of gear; With gear wheel 15 rotations, the inclined-plane that lock pointed tooth on the tooth 8 this moment cooperates with the teeth of pinion 14 pinion 14 simultaneously.When desktop is lifted to highly, to lift on stopping, this moment, desktop had the trend of whereabouts; Gear train also has the trend of the rotation of swinging to; At this moment the facade of locking pointed tooth on the tooth 8 cooperates with the teeth of pinion 14, and this ratchet-type matching relationship has stoped the reversing of pinion 14, therefore; It is motionless that desktop stops at current location, reached the purpose that rises the tea table desktop.When needs decline tea table desktop, the baffle plate that promotes locking bar 10 rear ends inwardly advances locking bar 10, and the inclined-plane of locking bar 10 front end inclined-planes on lock tooth 8 slides; And press down lock tooth 8, make the teeth of the pointed tooth disengaging pinion 14 on the lock tooth 8, thereby gear train is tied no longer; Press down the tea table desktop this moment to the height that needs, then locking bar 10 is pulled out, under spring 7 effects, lock tooth 8 is resetted; Pointed tooth on the lock tooth 8 embeds pinion 14 between cog, prevents that the tea table desktop from descending.In a word, when needs rising tea table desktop, lift desktop on directly and highly get final product to needing; When needs decline tea table height of table top, should advance locking bar 10 earlier, press down desktop again, when desktop drops to when needing height, locking bar 10 is pulled out to get final product again.For convenient operation, also can on kayser body 6 bottom locking bar grooves, offer the back-moving spring cavity; At this place back-moving spring is inserted in locking bar 10; When desktop drops to highly, stop step-down operation, locking bar 10 resets under action of reset spring; Crown is embedded into pinion 14 between cog, guarantees that the tea table desktop no longer descends.The present invention also can be through after prolonging arbitrary gear shaft, installs that manual rocking handle is realized rising or the purpose of decline tea table desktop additional, also can on gear shaft, install the purpose that motor is realized electric up-down additional.The present invention is through stretching out and the slide mass that bounces back reaches the purpose of lifting tea table desktop; Though the tea table leg structure is varied; But realize purpose; Nearly all be to rely on opening and bounce back to move and realizing that therefore, the present invention is with a wide range of applications as the auxiliary lifting device of lifting tea table of shank.

Claims

1. the auxiliary lifting device of a lifting tea table; Comprise the slide mass of controlling wheel, chute (1) and being positioned at chute (1); Slide mass and chute (1) are slidingly matched; It is characterized in that: said slide mass is formed by sliding rack (2) with the tooth bar connector (3) that sliding rack (2) is pegged graft, and two sliding racks (2) lay respectively at the interior both sides of chute (1), two tooth bar connectors (3) each other away from; Kayser body (6) is positioned in the middle of chute (1) two sliding rack (2), and the center is provided with is used to the lockhole that leads to up and down, and its bottom is provided with axial locking bar groove, and this locking bar groove and lockhole are used to lead to; Locking bar (10) bar portion be embedded in the chute set opening of (1) one end and with locking bar groove that this opening communicates in; And be slidingly matched with opening and locking bar groove on the chute (1); Locking bar (10) front end is arranged in lockhole; The bottom of locking bar (10) front end is the inclined-plane, and locking bar (10) rear end is provided with baffle plate, and baffle plate is positioned at outside the chute (1); Lock tooth (8) is arranged in lockhole, and lock tooth (8) one ends are installed with hinge (9) and hinged with kayser body (6), and lock tooth (8) other end is provided with inclined-plane and pointed tooth; This inclined-plane pastes with the inclined-plane of locking bar (10) front end mutually; The one side of this pointed tooth is the inclined-plane, and another side is a facade, and the pointed tooth bottom is placed with spring (7); The medial recess of chute (1) two lateral edges, cover plate (4) is spirally connected with chute (1) base plate, and the medial recess position of cover plate (4) bottom surface and chute (1) two lateral edges constitutes the sideslip groove; Tooth bar connector (3) bottom is sliding chamber, and the lower edge in sliding chamber is that a pair of inwardly protruded cunning is colluded, and sliding colluding is positioned at the sideslip groove and is slidingly matched with the sideslip groove, and the roof of sliding the chamber cooperates with cover plate (4) slide, and tooth bar connector (3) top is provided with the connection axis hole; Said control wheel is gear train; Gear train is positioned at chute (1) middle part two sliding racks (2) top, and gear train is made up of the gear of two pairs of same structures, and every pair of gear is made up of two in-line gears that vary in size; Pinion (14) in the two pairs of gears is meshing with each other; Gear wheel (15) and the corresponding one by one engagement of sliding rack (2), the pointed tooth on the lock tooth (8) is embedded in the between cog of a pinion (14), and the two ends of gear train middle gear axle are contained in respectively in the bearing (13) on the gearcase side plate (12); Gear train is contained in the gearcase (5), and gearcase (5) lower end is fixed on chute (1) side.

2. the auxiliary lifting device of lifting tea table according to claim 1, it is characterized in that: the bottom of said sliding rack (2) is provided with ball grooves, and ball (11) is housed in the ball grooves.