WO2018072235A1 - 一种小型升降桌 - Google Patents

一种小型升降桌 Download PDF

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Publication number
WO2018072235A1
WO2018072235A1 PCT/CN2016/105225 CN2016105225W WO2018072235A1 WO 2018072235 A1 WO2018072235 A1 WO 2018072235A1 CN 2016105225 W CN2016105225 W CN 2016105225W WO 2018072235 A1 WO2018072235 A1 WO 2018072235A1
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WO
WIPO (PCT)
Prior art keywords
hole
sliding
plate
seat
support plate
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PCT/CN2016/105225
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English (en)
French (fr)
Inventor
黄志优
石相君
吴刚
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浙江居优智能科技有限公司
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Application filed by 浙江居优智能科技有限公司 filed Critical 浙江居优智能科技有限公司
Publication of WO2018072235A1 publication Critical patent/WO2018072235A1/zh

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    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B9/00—Tables with tops of variable height
    • A47B9/16—Tables with tops of variable height with means for, or adapted for, inclining the legs of the table for varying the height of the top, e.g. with adjustable cross legs

Definitions

  • the invention belongs to the technical field of furniture, and in particular relates to a small lifting table.
  • a small lifting table that can be placed with a computer or other digital product, usually has an X-shaped bracket, and each of the X-shaped brackets is connected with a slider, and the vertical height of the X-shaped bracket is controlled by the movement of the slider.
  • the lifting table is adjusted to the desired height position, the X-shaped bracket is locked by the locking device, and the lifting table of the prior art usually applies a vertical elastic force to one of the X-shaped brackets by a mechanical spring.
  • the elastic force needs to overcome the gravity of the lifting table acting on the strut to lift the X-shaped bracket, so that the lifting force is small, and when the lifting table load is large, the lifting table is easy to be caused. Difficult to rise.
  • the invention provides a small lifting table, which solves the technical problem that the lifting of the existing lifting table is small.
  • a small lifting table including a first table, a first supporting plate, a second supporting plate, a first sliding block that is slidingly engaged with the first supporting plate, and a a second slider slidingly engaged with the support plate and an X-shaped bracket formed by the rotational connection of the first support rod and the second support rod, the first support plate or the second support plate being fixed to the lower surface of the first table plate
  • the first support plate is provided with a lock for restricting the sliding of the first slider
  • the second support plate is hinged with a swing arm, and the swing arm has a first rotating end and a second rotating end.
  • the second support plate is provided with an elastic member, one end of the elastic member is hinged to the second support plate, and the other end is hinged with the first rotating end, and one end of the first strut is hinged to the first support plate, and the other end is Hinged with the second slider, one end of the second pole The first slider is hinged and the other end is fixedly coupled to the second rotating end.
  • the swing arm includes a first swing arm, a second swing arm, and a connecting piece connecting the first swing arm and the second swing arm, and the first swing arm and the second swing arm pass the rotating shaft and the second support plate Hinged, the first swing arm is integrally formed with the second strut.
  • the second supporting plate is fixedly connected with a connecting seat and an adjusting seat
  • the elastic member is hinged with the connecting seat
  • the second supporting plate is provided with a threaded hole
  • the connecting seat is provided with a first connecting ear and a connecting hole through which the bolt for connecting the threaded hole passes
  • the adjusting seat is provided with a second connecting ear
  • the first connecting ear is provided with a first screw hole
  • the second connecting ear is provided with the first a second screw hole concentric with the screw hole, the first screw hole and the second screw hole being screwed by an adjusting bolt
  • the rotation of the connecting seat against the elastic force of the elastic member by the rotation adjusting bolt aligns the connecting hole and the threaded hole.
  • the locker includes a base fixed to the first support plate, a mounting seat fixed to the base and having a through hole, a sliding seat disposed in the through hole, and a positioning pin fixed on the sliding seat.
  • the driver includes a sliding plate that can slide along the surface of the base, a brake line that connects the head end to the sliding plate, a wrench that is connected to the tail end of the brake wire and can pull the brake wire, and one end abuts against the inner wall of the through hole, and the other end abuts Relying on the return spring of the sliding seat, the sliding plate is provided with a guiding groove, the groove wall of the guiding groove is at an acute angle with the sliding direction of the sliding plate, and the sliding seat is provided with a guiding surface extending into the guiding groove toward the bottom surface of the sliding plate. And when the wrench pulls the brake wire to drive the sliding plate to slide, the groove wall of the guiding groove presses the guiding block to cause the sliding seat to extend the positioning pin to extend the positioning hole against the elastic force of the return spring.
  • the mounting seat is provided with a sliding slot, and the sliding slot forms a passage for guiding the sliding of the sliding plate with the surface of the bottom plate.
  • the wrench includes a wrench seat fixed to the first table board and a wrench plate rotatably connected to the wrench seat, the wrench plate has a bent portion, and the bent portion is provided with a tooth groove, the brake The end of the wire is snapped into the slot.
  • the sliding plate is provided with a baffle plate and a head end for the brake wire passes through the first mounting hole, and the baffle plate is provided for the brake wire to pass through the second mounting hole, and the head end of the brake wire is worn. After passing through the first mounting hole, it abuts against the side surface of the baffle.
  • the positioning pin includes a first positioning pin and a second positioning pin which are screwed, the sliding seat is clamped between the first positioning pin and the second positioning pin, and the guiding hole comprises a connected first a guiding hole and a second guiding hole, the head end of the first positioning pin is slidably engaged with the first guiding hole, and the head end of the second positioning pin is slidably engaged with the second guiding hole.
  • the elastic member is a spring or a gas spring.
  • the lifting table of the invention can be placed on a fixed table top, which solves the problem that the fixed table top cannot be partially lifted and lowered.
  • the swing arm acts on the second pole. Therefore, the elastic force of the elastic member does not directly offset the weight generated by the X-shaped bracket and the first table in the vertical direction, and the swing arm is hinged on the second support plate.
  • the swing arm can act as a lever. The resilience of the elastic member is amplified by the lever of the swing arm, so that the lifting force of the second strut is greatly enlarged, and the lifting force obtained during the lifting of the lifting table is significantly improved.
  • the swing arm When the lifting table is at the lowest position, the swing arm is driven by the second pole so that the first rotating end is at the maximum swinging angle. At this time, the elastic force of the elastic member is maximized, and the arm is also maximized, so that the second pole is acted upon.
  • the force on the upper part can be very large, and the lifting table is easier to lift under the action of a large load.
  • FIG. 1 is a perspective view showing a perspective view of a small lifting table of the present invention
  • FIG. 2 is a schematic perspective view showing another perspective of the small lifting table of the present invention.
  • Figure 3 is a partial enlarged view of the area A in Figure 2;
  • Figure 4 is a partial enlarged view of the area B of Figure 2;
  • Figure 5 is an exploded view of the lock in the small lift table of the present invention.
  • a small lifting table includes a first table 11, a first supporting plate 2, a second supporting plate 3, a first sliding block 21 slidably engaged with the first supporting plate 2, and
  • the second supporting plate 3 is slidably engaged with the second sliding block 31 and the X-shaped bracket 4 formed by the central connecting of the first supporting rod 41 and the second supporting rod 42.
  • the first supporting plate 2 is provided with a first sliding rail 22,
  • the second support plate 3 is provided with a second slide rail 32.
  • the first slide rail 22 and the first support rail 2 and the second slide rail 32 can also be integrally formed by sheet metal processing.
  • the support plate 2 is provided with a locker 5 for restricting the sliding of the first slider 21.
  • the second support plate 3 is hinged with a swing arm 7 having a first rotating end 7a and a second rotating end 7a, and a second
  • the support plate 3 is provided with an elastic member 6, one end of the elastic member 6 is hinged with the second support plate 3, and the other end is hinged with the first rotating end 7a.
  • One end of the first strut 41 is hinged to the first support plate 2, and the other end is hinged.
  • Hinged with the second slider 31 one end of the second strut 41 is hinged to the first slider 21, and the other end is fixedly connected with the second rotating end 7b.
  • the first slider 21 can slide along the first slide rail 22 away from the hinge end of the first strut 41 and the first support plate 2,
  • the two sliders 31 also slide along the second rail 32 toward the hinge end away from the second strut 42 and the second support plate 3, and the first strut 41 and the second strut 42 rotate around the center of rotation of the X-bracket 4.
  • the height of the X-shaped bracket 4 is gradually lowered, that is, the height of the first table 11 is lowered.
  • the second strut 41 drives the swing arm 7 around the second branch through the second rotating end 7b.
  • the hinge end of the strut 3 rotates, and the first rotating end 7a of the swing arm 7 pulls the elastic member 6 so that the resilience force generated by the elastic member 6 gradually becomes larger.
  • the lock device 5 restricts the sliding of the first slider 21, the first The height of the table 11 is locked.
  • the locker 5 needs to be operated to release the first slider 21, and the resilience of the elastic member 6 acts on the first rotation of the swing arm 7.
  • the driving arm 7 is rotated on the end 7a to drive the second strut 42 to rotate.
  • the first slider 21 is moved toward the hinge end of the first strut 41 and the first supporting plate 2 by the rotation of the second strut 42.
  • the second slider 31 While sliding in the direction, at the same time, the second slider 31 is also slid toward the hinge end of the second strut 42 and the second support plate 3, and the height of the X-shaped bracket 4 is increased to realize the first table 11 The height is automatically enhanced.
  • the resilience of the elastic member 6 is transmitted from the first rotating end 7a to the second rotating end 7b. Therefore, the resilience of the elastic member 6 is caused by the lever of the swing arm 7 so that the second strut 41 is received.
  • the force is enlarged, so the distance from the first rotating end 7a to the hinge end of the swing arm 7 and the second support plate 3 is designed to be larger than the distance from the second rotating end 7b to the hinge end of the swing arm 7 and the second support plate 3, This achieves the leverage of the swing arm 7 so that the lifting force obtained during the lifting of the lifting table is significantly improved.
  • the swing arm 7 When the lifting table is at the lowest position, the swing arm 7 is driven by the second strut 41 such that the first rotating end 7a is at the maximum swing angle, at which time the resilience of the elastic member 6 is maximized, and the first rotating end 7a extends to
  • the swing arm portion of the swinging arm 7 and the hinge end of the second support plate 3 is perpendicular to the elastic member 6, so that the force arm also reaches a maximum, and the force acting on the second strut 41 can be made large, and the lifting table is Lifting is easier under the action of a large load
  • the elastic member 6 used therein is preferably a spring or a gas spring as long as a resilience can be generated, and the resilience generated can drive the second slider 31 so that the X-shaped bracket 4 Elevated elastic members can be used in this lifting table.
  • the swing arm 7 preferably adopts a non-integrated structure including a first swing arm 71, a second swing arm 72, and a first swing arm 71 and a first swing arm 71.
  • the connecting piece 73 of the second swing arm 72, the first swing arm 71 and the second swing arm 72 are hinged to the second support plate 3 via the rotating shaft 73.
  • the first swing arm 71 and the second strut 41 are integrated. Molding It is said that the first swing arm 71 is a part of the second strut 41, so that when the lift table is assembled, the first swing arm 71 and the second strut 41 do not need to be assembled.
  • a connecting seat 8 and an adjusting seat 9 are fixedly connected to the second supporting plate 3, the elastic member 6 is hinged with the connecting seat 8, the second supporting plate 3 is provided with a threaded hole, and the connecting seat 8 is provided with a first connecting ear 81 and for connecting a connecting hole 82 through which the bolt of the threaded hole passes, the adjusting seat 9 is provided with a second connecting lug 91, the first connecting lug 81 is provided with a first screw hole 811, and the second connecting lug 91 is provided with the first screw hole 811 concentric second screw hole 911, the first screw hole 811 and the second screw hole 911 are screwed by an adjusting bolt.
  • the adjusting seat 9 is first fixed to the second support by bolting or welding.
  • the predetermined position of the plate 3, and the elastic member 6 is respectively hinged with the connecting seat 8 and the first rotating end 7a of the swing arm 7, and then the connecting rod 8 can be driven to overcome the resilience of the elastic member 6 by rotating the adjusting bolt to make the connection.
  • Pre-defined threaded hole pairs on the hole 82 and the second support plate 3 Finally, the connecting seat 8 and the second supporting plate 3 are connected by threading bolts in the connecting holes 82 and the threaded holes of the second supporting plate 3, and the screw holes on the connecting hole 82 and the second supporting plate 3 can be set as a plurality of pairs.
  • the first support plate 2 or the second support plate 3 is fixed to the lower end surface of the first table 11 .
  • the lock 5 and the elastic member 6 can be installed up and down interchangeably when the first support plate 2 is fixed.
  • the second support plate 3 serves as a table leg of the lifting table, and the bottom surface of the second support plate 3 is provided with a non-slip block 33.
  • the lifting table is mainly used for being placed on the table, therefore,
  • the anti-slip fast 33 is used to support on the tabletop, which acts as a non-slip, and prevents the table legs of the lifting table from scratching the tabletop, and in order to improve As the aesthetics and external integrity of the table legs, the second support plate 3 needs to surround the elastic member 6. Therefore, the second support plate 3 is provided with a casing 34, and the casing 34 covers the second support plate 3 to form a tubular shape.
  • the table legs similarly, when the second support plate 3 is fixed to the lower end surface of the first table plate 11, the first support plate 2 serves as the table leg of the lifting table, and the anti-slip block 33 is correspondingly in the first support The lower bottom surface of the board 2.
  • the X-shaped bracket 4 and the locking device 5 are respectively distributed on both sides of the first table board 11, when the locking device 5 is operated,
  • the user's two hands can respectively operate a locker 5, and the first of the two X-shaped brackets 4 is connected by a connecting rod 43, and the two first struts 41 are connected by a connecting rod 43 to strengthen the X.
  • the strength of the bracket 4 also ensures the synchronization between the first sliders 21 on both sides and the second sliders 22 on both sides, thereby improving the stability of the X-bracket 4 during lifting.
  • the lifting table further comprises a second table 12 having a lower height than the first table 11.
  • the second table 12 is fixed with a connecting block 121, and the connecting block 121 is fixedly connected with the first supporting plate 2.
  • a digital component such as a keyboard or a mouse can be placed on the second table 12, and is fixed on the first support plate 2 through the connecting block 121, and the assembly is simple and very firm.
  • the locker 5 includes a base 51 fixed to the first support plate 2 , a mounting seat 52 fixed to the base 51 and having a through hole 521 , and a sliding seat disposed in the through hole 521 . 53.
  • a positioning pin 54 fixed to the sliding seat 53, a positioning hole 211 located on the first slider 21 and distributed along the longitudinal direction of the first slider 21, and a drivable sliding seat 53 sliding to extend or extend the positioning pin 54
  • the driving hole 55 of the positioning hole 211 is provided with a guiding hole 522 penetrating through hole 521 on the outer wall of the mounting seat 52, and the positioning pin 54 is slidably engaged with the guiding hole 522.
  • the driver 55 includes a sliding plate 551 slidable along the surface of the base 51, a brake wire 552 connected to the sliding plate 551 at the head end, a wrench 553 connected to the rear end of the brake wire 552 and capable of pulling the wire 552, and one end abutting against the inner wall of the through hole 521. The other end abuts against the return spring 554 of the sliding seat 53, and the sliding plate 551 is provided with a guiding groove 5511.
  • the sliding seat 53 is provided with a guiding block 531 toward the bottom surface of the sliding plate 551.
  • the guiding block 531 extends into the guiding groove 5511.
  • the brake wire 552 is a steel wire similar to the bicycle brake wire, and the end portion is self-loaded with a spring, and the operating wrench 553 pulls the brake wire. After 552, the wrench 553 is released again, and the brake wire 552 is automatically reset by the spring force of the spring.
  • the length direction of the guiding groove 5511 is at an acute angle with the sliding direction of the sliding plate 551, and the wrench 553 pulls the brake wire 552 to drive the sliding plate 551 to slide.
  • the side wall on one side of the guiding groove 5511 will generate a thrust force on the guiding block 531.
  • a component of the thrust force is a direction in which the positioning pin 54 extends out of the positioning hole 211. Therefore, the side wall of the guiding groove 5511 side will By sliding the sliding block 53 by the pushing guide block 531, the positioning pin 54 is extended out of the positioning hole 211, and in this process, the sliding seat 53 compresses the return spring 554, and when the wrench 553 is loosened, the return spring 554 is applied to the sliding seat 53. Resilience In the following, the sliding seat 53 is driven to slide by the return spring 554 to drive the positioning pin 54 into the positioning hole 211.
  • the guiding block 531 During the sliding process of the sliding seat 53, the guiding block 531 generates a thrust force on the side wall of the other side of the guiding groove 5511. A component direction of the thrust is the sliding direction of the reset of the sliding plate 551. Therefore, the sliding plate 551 will slide to the position before the operating wrench 553 under the action of the guiding block 531 to realize the resetting of the sliding plate 551, and the sliding plate 551 is in the sliding process.
  • the wire 552 also causes a springback force due to the spring that is attached to the end, so that both the wrench 553 and the brake wire 552 are reset.
  • the mounting seat 52 is provided with a sliding slot 523.
  • the sliding groove 523 forms a passage for guiding the sliding surface of the sliding plate 551 with the bottom plate 51.
  • the sliding plate 551 is placed on the bottom plate 51 when installed, and the mounting seat 52 and the bottom plate 51 are fixedly connected by bolts.
  • the sliding slot 523 is nested with the sliding plate 551.
  • the sliding of the sliding plate 551 along the surface of the bottom plate 51 is performed along the channel, and the sliding slot 523 plays a limit on the sliding of the sliding plate 551. Therefore, the bottom plate 51 does not need to be processed and skated.
  • the 551 mating chute is used to realize the sliding of the sliding plate 551.
  • the bottom plate 51 only needs to use an ordinary plate, and it is very simple to machine the chute 523 on the mounting seat 52. This simplifies the processing difficulty and reduces the processing cost, and the slider 551 only needs to be placed on the surface of the bottom plate 51 during assembly, and then the slider 551 is loaded into the sliding groove 523 by placing the mounting seat 52 on the sliding plate 551, and assembling The process is very simple and fast.
  • the wrench 553 includes a wrench seat 5531 fixed to the first table 11 and a wrench plate 5532 that is rotatably connected to the wrench seat 5531.
  • the connection between the wrench plate 5532 and the tail end of the brake wire 552 can be as shown in FIG.
  • the T-shaped card hole 5532a is directly opened on the wrench plate 5532, and the tail end of the brake wire 552 passes through the T-shaped card hole 5532a and is engaged with the plate surface of the wrench plate 5532.
  • the wrench plate 5532 and the brake wire 552 For the connection method of the tail end, the connection structure as shown in FIG.
  • the wrench plate 5532 has a bent portion 5532b, and the bent portion 5532b is provided with a tooth groove 5532c, and the tail end of the brake wire 552 is stuck with the slot 5532c. Then, the pulling action of the wrench plate 5532 on the brake wire 552 is realized by the rotational movement of the wrench plate 5532.
  • the baffle 551 is provided with a baffle 551a and a head end for the brake wire 552 passing through the first mounting hole 552b.
  • the baffle 551a is provided for the gate wire 552 to pass through the second mounting hole 551c, and the head end of the brake wire 552 passes through
  • the first mounting hole 552b is rearwardly opposed to the side surface of the baffle 551a.
  • the positioning pin 54 includes a first positioning pin 541 and a second positioning pin 542 that are screwed.
  • the sliding seat 53 is clamped between the first positioning pin 541 and the second positioning pin 542.
  • the guiding hole 522 includes a first guiding body that communicates with each other.
  • the hole 5221 and the second guiding hole 5222, the head end of the first positioning pin 541 is slidably engaged with the first guiding hole 5221.
  • the head end of the second positioning pin 542 is slidably engaged with the second guiding hole 5222, and the tail of the first positioning pin 541
  • the end of the second positioning pin 542 is provided with a screw hole, and the sliding seat 53 is provided with a mounting through hole for the screw to pass through.
  • the mounting hole has a smaller aperture than the first positioning pin 541 and the second positioning pin.
  • the outer diameter of the 542, the screw on the first positioning pin 541 is threadedly connected to the screw hole on the second positioning pin 542 after passing through the mounting through hole, and the first positioning pin 541 and the second positioning pin 542 can clamp the sliding seat 53 Tightly, the assembly of the positioning pin 54 and the sliding seat 53 is fixedly connected, which greatly simplifies the assembly process of the positioning pin 54 and the sliding seat 53.
  • the head end of the second positioning pin 542 is used to extend or extend the positioning hole. 211, and the first guiding hole
  • the second positioning hole 542 guides the second positioning pin 542, and the second positioning hole 5222 guides the second positioning pin 542. Therefore, the positioning pin 54 can be stably and accurately matched with the positioning hole 211.

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Abstract

一种小型升降桌，属于家具技术领域，主要包括第一桌板（11）、第一支撑板（2）、第二支撑板（3）、与第一支撑板（2）滑动配合的第一滑块（21）、与第二支撑板（3）滑动配合的第二滑块（31）以及由第一支杆（41）和第二支杆（42）中部转动连接形成的X型支架（4），第一支撑板（2）或第二支撑板（3）固定于第一桌板（11）的下表面，第一支撑板（2）上设有用于限制第一滑块（21）滑动的锁止器（5），第二支撑板（3）上铰接有摆臂（7），摆臂（7）具有第一转动端（7a）和第二转动端（7b），第二支撑板（3）上设有弹性件（6），弹性件（6）的一端与第二支撑板（3）铰接、另一端与第一转动端（7a）铰接，第一支杆（41）的一端与第一支撑板（2）铰接、另一端与第二滑块（31）铰接，第二支杆（42）的一端与第一滑块（21）铰接、另一端与第二转动端（7b）固定连接，解决了升降桌起升力较小的技术问题。

Description

一种小型升降桌 技术领域
本发明属于家具技术领域，具体涉及一种小型升降桌。
背景技术
目前，升降桌由于其可进行升降，从而根据需要方便地调节高度，而越来越普及。尤其是可放置电脑或其他数码产品的小型升降桌，其通常具有X型支架，X型支架的每根支杆均连接一个滑块，通过滑块的移动控制X型支架的竖直高度，当升降桌在调节到所需高度位置时，通过锁止器将X型支架锁止，而现有技术中的升降桌通常通过机械弹簧向X型支架中的一根支杆施加竖向的弹力，从而使得锁止器解开时，该弹力需要克服升降桌作用在支杆上的重力将X型支架顶起，因此，其起升力较小，当升降桌载荷较大时，容易导致升降桌起升困难。
发明内容
本发明提供了一种小型升降桌，解决现有的升降桌起升力较小的技术问题。
为解决上述技术问题，本发明采用如下技术方案：一种小型升降桌，包括第一桌板、第一支撑板、第二支撑板、与第一支撑板滑动配合的第一滑块、与第二支撑板滑动配合的第二滑块以及由第一支杆和第二支杆中部转动连接形成的X型支架，所述第一支撑板或第二支撑板固定于第一桌板的下表面，所述第一支撑板上设有用于限制第一滑块滑动的锁止器，所述第二支撑板上铰接有摆臂，所述摆臂具有第一转动端和第二转动端，所述第二支撑板上设有弹性件，所述弹性件的一端与第二支撑板铰接、另一端与第一转动端铰接，所述第一支杆的一端与第一支撑板铰接、另一端与第二滑块铰接，所述第二支杆的一端与 第一滑块铰接、另一端与第二转动端固定连接。
进一步的，所述摆臂包括第一摆臂、第二摆臂以及连接第一摆臂和第二摆臂的连接片，所述第一摆臂和第二摆臂通过转轴与第二支撑板铰接，所述第一摆臂与第二支杆一体成型。
进一步的，所述第二支撑板固定连接有连接座和调节座，所述弹性件与连接座铰接，所述第二支撑板上设有螺纹孔，所述连接座设有第一连接耳以及供连接螺纹孔的螺栓穿过的连接孔，所述调节座设有供第二连接耳，所述第一连接耳上设有第一螺孔，所述第二连接耳上设有与第一螺孔同心的第二螺孔，所述第一螺孔和第二螺孔通过一调节螺栓螺纹连接，且通过旋转调节螺栓可驱动连接座克服弹性件的弹力移动使连接孔和螺纹孔对齐。
进一步的，所述锁止器包括固定于第一支撑板上的底座、固定于底座上且具有通孔的安装座、设置于通孔中的滑动座、固定于滑动座上的定位销、位于第一滑块上且沿第一滑块长度方向分布的定位孔以及可驱动滑动座滑动使定位销伸入或伸出定位孔的驱动器，所述安装座的外壁上设有贯通通孔的导向孔，所述定位销与导向孔滑动配合。
进一步的，所述驱动器包括可沿底座表面滑动的滑板、头端与滑板相连的闸线、与闸线尾端相连且可牵拉闸线的扳手以及一端抵靠于通孔内壁、另一端抵靠于滑动座的复位弹簧，所述滑板上设有导向槽，所述导向槽的槽壁与滑板的滑动方向呈锐角夹角，所述滑动座朝向滑板的底面设有伸入导向槽的导向块，所述扳手牵拉闸线带动滑板滑动时，所述导向槽的一侧槽壁挤压导向块使滑动座克服复位弹簧的弹力而带动定位销伸出定位孔中。
进一步的，所述安装座设有滑槽，所述滑槽与底板表面形成引导滑板滑动的通道。
进一步的，所述扳手包括固定于第一桌板上的扳手座和转动连接于扳手座的扳手板，所述扳手板具有折弯部，所述折弯部上设有齿槽，所述闸线的尾端与齿槽卡接。
进一步的，所述滑板上设有挡板及用于闸线的头端穿过第一安装孔，所述挡板设有用于闸线穿过第二安装孔，所述闸线的头端穿过第一安装孔后与挡板的侧面相抵持。
进一步的，所述定位销包括螺纹连接的第一定位销和第二定位销，所述滑动座被夹持于第一定位销和第二定位销之间，所述导向孔包括相连通的第一导向孔和第二导向孔，所述第一定位销的头端与第一导向孔滑动配合，所述第二定位销的头端与第二导向孔滑动配合。
进一步的，所述弹性件为弹簧或气弹簧。
本发明的有益效果为：
本发明的升降桌可以放置于固定桌面上使用，解决了固定桌面无法局部升降的问题，另外，由于弹性件的弹性力并不直接作用于第一支杆或第二支杆上，而是通过摆臂作用到第二支杆上的，因此，弹性件的弹性力不用直接抵消X型支架及第一桌板在竖向上产生的重量，由于摆臂则铰接在第二支撑板上，因此，摆臂就可以起到杠杆的作用，弹性件的回弹力经过摆臂的杠杆作用使得第二支杆受到的作用力得到放大，升降桌升高过程中获得的起升力得到显著提高，而且，当升降桌位于最低位置时，摆臂由第二支杆带动使得第一转动端处于最大的摆动角度，此时，弹性件的回弹力达到最大，力臂也达到最大，因此作用在第二支杆上的作用力可以达到很大，升降桌在大负载的作用下起升更加容易。
附图说明
以下结合附图和具体实施方式对本发明进行进一步描述：
图1是本发明小型升降桌一种视角的立体结构示意图；
图2是本发明小型升降桌另一种视角的立体结构示意图；
图3是图2中A区域的局部放大图；
图4是图2中B区域的局部放大图；
图5是本发明小型升降桌中锁止器的爆炸图。
具体实施方式
下面结合附图对本发明的具体实施方式作详细说明。
如图1和图2所示，一种小型升降桌，包括第一桌板11、第一支撑板2、第二支撑板3、与第一支撑板2滑动配合的第一滑块21、与第二支撑板3滑动配合的第二滑块31以及由第一支杆41和第二支杆42中部转动连接形成的X型支架4，第一支撑板2上设置有第一滑轨22，第二支撑板3上设置有第二滑轨32，第一滑轨22和第一支撑板2以及第二滑轨32第二支撑板3也可以分别通过钣金加工的方式一体成型，第一支撑板2上设有用于限制第一滑块21滑动的锁止器5，第二支撑板3上铰接有摆臂7，摆臂7具有第一转动端7a和第二转动端7a，第二支撑板3上设有弹性件6，弹性件6的一端与第二支撑板3铰接、另一端与第一转动端7a铰接，第一支杆41的一端与第一支撑板2铰接、另一端与第二滑块31铰接，第二支杆41的一端与第一滑块21铰接、另一端与第二转动端7b固定连接，当锁止器5松开第一滑块21时，通过向第一桌板11施加一定的下压力，第一滑块21即可沿第一滑轨22朝着远离第一支杆41与第一支撑板2的铰接端的方向滑动，第二滑块31也沿第二滑轨32朝着远离第二支杆42与第二支撑板3的铰接端的方向滑动，第一支杆41和第二支杆42绕X型支架4的转动中心转动，X型支架4的高度逐渐降低，也就是将第一桌板11的高度降低，此过程中，第二支杆41通过第二转动端7b带动摆臂7绕其与第二支 撑板3的铰接端转动，摆臂7上的第一转动端7a拉扯弹性件6使得弹性件6产生的回弹力逐渐变大，当锁止器5限制第一滑块21滑动时，第一桌板11的高度即被锁定，当第一桌板11需要起升时，只需要操作锁止器5松开第一滑块21，弹性件6的回弹力作用在摆臂7的第一转动端7a上驱动摆臂7转动，从而带动第二支杆42转动，第一滑块21在第二支杆42转动的作用下朝着靠近第一支杆41与第一支撑板2的铰接端的方向滑动，与此同时，也第二滑块31朝着靠近第二支杆42与第二支撑板3的铰接端的方向滑动，X型支架4的高度随之提高，实现了第一桌板11的高度自动提升的功能。升降桌提升过程中，弹性件6的回弹力是由第一转动端7a传递至第二转动端7b，因此，弹性件6的回弹力经过摆臂7的杠杆作用使得第二支杆41受到的作用力得到放大，所以第一转动端7a到摆臂7与第二支撑板3的铰接端的距离被设计成大于第二转动端7b到摆臂7与第二支撑板3的铰接端的距离，以此实现摆臂7的杠杆作用，使升降桌升高过程中获得的起升力得到显著提高。当升降桌位于最低位置时，摆臂7由第二支杆41带动使得第一转动端7a处于最大的摆动角度，此时，弹性件6的回弹力达到最大，而第一转动端7a延伸至摆臂7与第二支撑板3的铰接端的摆臂部分是垂直于弹性件6的，因此，力臂也达到最大，作用在第二支杆41上的作用力可以达到很大，升降桌在大负载的作用下起升更加容易，而这其中所用到的弹性件6优选为弹簧或气弹簧，只要能产生回弹力，并且所产生的回弹力可以驱动第二滑块31使得X型支架4升高的弹性件均可用于本升降桌中使用。
为了减轻摆臂7的质量，减小摆臂7的转动惯量，摆臂7优选采用的是非一体式结构，其包括第一摆臂71、第二摆臂72以及连接第一摆臂71和第二摆臂72的连接片73，第一摆臂71和第二摆臂72通过转轴73与第二支撑板3铰接，为了进一步简化安装工艺，第一摆臂71与第二支杆41为一体成型，也就 是说第一摆臂71是第二支杆41的一部分，这样的话在升降桌装配时，第一摆臂71与第二支杆41就不需要进行组装连接。
为了使升降桌能够在弹性件6的回弹力作用下能够升至最大高度，在升降桌位于最大高度时，弹性件6仍需要被装配成可产生回弹力的状态，为了实现这一装配目的，在第二支撑板3固定连接有连接座8和调节座9，弹性件6与连接座8铰接，第二支撑板3上设有螺纹孔，连接座8设有第一连接耳81以及供连接螺纹孔的螺栓穿过的连接孔82，调节座9设有供第二连接耳91，第一连接耳81上设有第一螺孔811，第二连接耳91上设有与第一螺孔811同心的第二螺孔911，第一螺孔811和第二螺孔911通过一调节螺栓螺纹连接，在安装弹性件6时，首先将调节座9通过螺栓或者焊接的方式固定至第二支撑板3的预定位置上，并且使弹性件6分别与连接座8和摆臂7的第一转动端7a铰接，再通过旋转调节螺栓就可以驱动连接座8克服弹性件6的回弹力移动使连接孔82和第二支撑板3上预设的螺纹孔对齐，最后通过在连接孔82和第二支撑板3的螺纹孔穿入螺栓将连接座8和第二支撑板3连接，而连接孔82和第二支撑板3上的螺纹孔可以设置为多对，这样就可以通过调节螺栓控制连接孔82和第二支撑板3的螺纹孔实现不同的对齐方式，从而实现在升降桌位于最大高度时对弹性件6产生的回弹力的可调设定，这样的装配方式，仅通过旋转调节螺栓就可以轻松完成，简化了弹性件6的装配工艺。
其中，第一支撑板2或第二支撑板3固定于第一桌板11的下端面，换个角度说，锁止器5和弹性件6可以上下互换地安装，当第一支撑板2固定于第一桌板11的下端面时，第二支撑板3作为升降桌的桌脚，第二支撑板3下底面设有防滑块33，本升降桌主要用于放置在桌面上使用，因此，防滑快33用于支撑在桌面上，起到了防滑的作用，并且防止升降桌的桌脚刮花桌面，而为了提高 第二支撑板3作为桌脚的美观度和外部的完整性，需要将弹性件6包围起来，因此，第二支撑板3上设有外壳34，外壳34覆盖于第二支撑板3上形成管状的桌脚，同理的，当第二支撑板3固定于第一桌板11的下端面时，则第一支撑板2作为升降桌的桌脚，防滑块33则相应的则在第一支撑板2的下底面。
考虑到升降桌升降的稳定性要求，优选采用X型支架4和锁止器5的数量均为两个，且分别分布于第一桌板11的两侧，对锁止器5进行操作时，用户的两只手可以分别操作一个锁止器5，两个X型支架4中的第一支杆41通过连杆43相连，通过连杆43将两根第一支杆41连接起来加强了X型支架4的强度，并且也保证了两侧的第一滑块21之间及两侧的第二滑块22之间的同步性，从而提高了X型支架4在升降过程中的稳定性。
为了提高升降桌的实用性，升降桌还包括高度低于第一桌板11的第二桌板12，第二桌板12上固定有连接块121，连接块121与第一支撑板2固定连接，第二桌板12上可放置键盘、鼠标等数码配件，其通过连接块121固定在第一支撑板2上，装配简单且十分牢固。
如图2至图5所示，锁止器5包括固定于第一支撑板2上的底座51、固定于底座51上且具有通孔521的安装座52、设置于通孔521中的滑动座53、固定于滑动座53上的定位销54、位于第一滑块21上且沿第一滑块21长度方向分布的定位孔211以及可驱动滑动座53滑动使定位销54伸入或伸出定位孔211的驱动器55，安装座52的外壁上设有贯通通孔521的导向孔522，定位销54与导向孔522滑动配合。
驱动器55包括可沿底座51表面滑动的滑板551、头端与滑板551相连的闸线552、与闸线552尾端相连且可牵拉闸线552的扳手553以及一端抵靠于通孔521内壁、另一端抵靠于滑动座53的复位弹簧554，滑板551上设有导向槽5511， 滑动座53朝向滑板551的底面设有导向块531，导向块531伸入导向槽5511中，扳手553牵拉闸线552带动滑板551滑动时，导向槽5511的一侧槽壁挤压导向块531使滑动座53克服复位弹簧554的弹力而带动定位销54伸出定位孔211中，其中，闸线552为类似自行车刹车线的钢丝线，其端部自带弹簧，操作扳手553牵拉闸线552后，再松开扳手553，闸线552通过弹簧的回弹力可自动复位，导向槽5511的长度方向与滑板551的滑动方向呈锐角夹角，扳手553牵拉闸线552带动滑板551滑动时，导向槽5511一侧的侧壁将会对导向块531产生推力，该推力的一个分力方向为定位销54伸出定位孔211的运动方向，因此，导向槽5511一侧的侧壁将会通过推动导向块531带动滑动座53滑动，使得定位销54伸出定位孔211，而此过程中，滑动座53压缩复位弹簧554，当松开扳手553时，在复位弹簧554对滑动座53施加的回弹力的作用下，滑动座53被复位弹簧554驱动而滑动，带动定位销54伸入定位孔211，滑动座53在此滑动过程中，导向块531对导向槽5511另一侧的侧壁产生推力，该推力的一个分力方向为滑板551复位的滑动方向，因此，滑板551将会在导向块531的作用下滑动至操作扳手553前的位置实现滑板551的复位，而滑板551在滑动过程中，闸线552由于端部自带的弹簧也会产生回弹力而使扳手553和闸线552均完成复位。
安装座52上设有滑槽523，滑槽523与底板51表面形成引导滑板551滑动的通道，其中的滑板551安装时放置在底板51，再将安装座52与底板51通过螺栓固定连接，此过程中，滑槽523嵌套滑板551，滑板551沿底板51表面滑动是沿着通道进行的，并且滑槽523对滑板551的滑动起到了限位作用，因此，底板51不需要加工出与滑板551配合的滑槽来实现滑板551的滑动，底板51只需要使用普通的板材，而在安装座52上加工出滑槽523将会非常简单，这样 就简化了加工难度，降低了加工成本，并且滑板551在装配时，只需要放置在底板51的表面，再通过将安装座52放置在滑板551上使得滑板551装入滑槽523即可，装配过程十分简单快捷。
扳手553包括固定于第一桌板11上的扳手座5531和转动连接于扳手座5531的扳手板5532，扳手板5532与闸线552的尾端所采用的连接方式，可以为如图3所示的，在扳手板5532上直接开设T形卡孔5532a，闸线552的尾端穿过T形卡孔5532a后卡接在扳手板5532的板面上，当然，扳手板5532与闸线552的尾端所采用的连接方式，也可以采用如图5的连接结构，即扳手板5532具有折弯部5532b，折弯部5532b上设有齿槽5532c，闸线552的尾端与齿槽5532c卡接，通过扳手板5532的旋转运动，实现扳手板5532对闸线552的牵拉作用。
滑板551上设有挡板551a及用于闸线552的头端穿过第一安装孔552b，挡板551a设有用于闸线552穿过第二安装孔551c，闸线552的头端穿过第一安装孔552b后与挡板551a的侧面相抵持。
定位销54包括螺纹连接的第一定位销541和第二定位销542，滑动座53被夹持于第一定位销541和第二定位销542之间，导向孔522包括相连通的第一导向孔5221和第二导向孔5222，第一定位销541的头端与第一导向孔5221滑动配合，第二定位销542的头端与第二导向孔5222滑动配合，第一定位销541的尾端设有螺杆，第二定位销542的尾端设有螺孔，滑动座53上设有用于螺杆穿过的安装通孔，该安装通孔的孔径小于第一定位销541和第二定位销542的外径，第一定位销541上的螺杆穿过安装通孔后与第二定位销542上的螺孔螺纹连接，第一定位销541和第二定位销542即可将滑动座53夹紧，从而实现定位销54与滑动座53固定连接的装配，这样极大的简化了定位销54与滑动座53的装配过程，第二定位销542的头端用于伸入或伸出定位孔211，而第一导向孔 5221对第一定位销541起到导向作用，第二导向孔5222对第二定位销542起到导向作用，因此，确保了整个定位销54可以稳定准确地配合定位孔211。
以上就本发明较佳的实施例做了说明，但不能理解为是对权利要求的限制。本发明不仅局限于以上实施例，其具体结构允许有变化，本领域技术人员可以根据本发明作出各种改变和变形，只要不脱离本发明的精神，均属于本发明所附权利要求所定义的范围。

Claims (10)

  1. 一种小型升降桌，包括第一桌板、第一支撑板、第二支撑板、与第一支撑板滑动配合的第一滑块、与第二支撑板滑动配合的第二滑块以及由第一支杆和第二支杆中部转动连接形成的X型支架，所述第一支撑板或第二支撑板固定于第一桌板的下表面，所述第一支撑板上设有用于限制第一滑块滑动的锁止器，其特征在于，所述第二支撑板上铰接有摆臂，所述摆臂具有第一转动端和第二转动端，所述第二支撑板上设有弹性件，所述弹性件的一端与第二支撑板铰接、另一端与第一转动端铰接，所述第一支杆的一端与第一支撑板铰接、另一端与第二滑块铰接，所述第二支杆的一端与第一滑块铰接、另一端与第二转动端固定连接。
  2. 根据权利要求1所述的一种小型升降桌，其特征在于，所述摆臂包括第一摆臂、第二摆臂以及连接第一摆臂和第二摆臂的连接片，所述第一摆臂和第二摆臂通过转轴与第二支撑板铰接，所述第一摆臂与第二支杆一体成型。
  3. 根据权利要求1所述的一种小型升降桌，其特征在于，所述第二支撑板固定连接有连接座和调节座，所述弹性件与连接座铰接，所述第二支撑板上设有螺纹孔，所述连接座设有第一连接耳以及供连接螺纹孔的螺栓穿过的连接孔，所述调节座设有供第二连接耳，所述第一连接耳上设有第一螺孔，所述第二连接耳上设有与第一螺孔同心的第二螺孔，所述第一螺孔和第二螺孔通过一调节螺栓螺纹连接，且通过旋转调节螺栓可驱动连接座克服弹性件的弹力移动使连接孔和螺纹孔对齐。
  4. 根据权利要求1所述的一种小型升降桌，其特征在于，所述锁止器包括固定于第一支撑板上的底座、固定于底座上且具有通孔的安装座、设置于通孔中的滑动座、固定于滑动座上的定位销、位于第一滑块上且沿第一滑块长度方向分布的定位孔以及可驱动滑动座滑动使定位销伸入或伸出定位孔的驱动器， 所述安装座的外壁上设有贯通通孔的导向孔，所述定位销与导向孔滑动配合。
  5. 根据权利要求4所述的一种小型升降桌，其特征在于，所述驱动器包括可沿底座表面滑动的滑板、头端与滑板相连的闸线、与闸线尾端相连且可牵拉闸线的扳手以及一端抵靠于通孔内壁、另一端抵靠于滑动座的复位弹簧，所述滑板上设有导向槽，所述导向槽的槽壁与滑板的滑动方向呈锐角夹角，所述滑动座朝向滑板的底面设有伸入导向槽的导向块，所述扳手牵拉闸线带动滑板滑动时，所述导向槽的一侧槽壁挤压导向块使滑动座克服复位弹簧的弹力而带动定位销伸出定位孔中。
  6. 根据权利要求5所述的一种小型升降桌，其特征在于，所述安装座设有滑槽，所述滑槽与底板表面形成引导滑板滑动的通道。
  7. 根据权利要求5所述的一种小型升降桌，其特征在于，所述扳手包括固定于第一桌板上的扳手座和转动连接于扳手座的扳手板，所述扳手板具有折弯部，所述折弯部上设有齿槽，所述闸线的尾端与齿槽卡接。
  8. 根据权利要求5所述的一种小型升降桌，其特征在于，所述滑板上设有挡板及用于闸线的头端穿过第一安装孔，所述挡板设有用于闸线穿过第二安装孔，所述闸线的头端穿过第一安装孔后与挡板的侧面相抵持。
  9. 根据权利要求4至8任意一项所述的一种小型升降桌，其特征在于，所述定位销包括螺纹连接的第一定位销和第二定位销，所述滑动座被夹持于第一定位销和第二定位销之间，所述导向孔包括相连通的第一导向孔和第二导向孔，所述第一定位销的头端与第一导向孔滑动配合，所述第二定位销的头端与第二导向孔滑动配合。
  10. 根据权利要求1至8任意一项所述的一种小型升降桌，其特征在于，所述弹性件为弹簧或气弹簧。
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