WO2018032792A1 - 折叠升降桌工作站 - Google Patents

折叠升降桌工作站 Download PDF

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Publication number
WO2018032792A1
WO2018032792A1 PCT/CN2017/080854 CN2017080854W WO2018032792A1 WO 2018032792 A1 WO2018032792 A1 WO 2018032792A1 CN 2017080854 W CN2017080854 W CN 2017080854W WO 2018032792 A1 WO2018032792 A1 WO 2018032792A1
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WO
WIPO (PCT)
Prior art keywords
workstation
elastic member
elastic
spring
sliding
Prior art date
Application number
PCT/CN2017/080854
Other languages
English (en)
French (fr)
Inventor
杜鹏飞
李云根
Original Assignee
嘉兴海虹机电科技有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 嘉兴海虹机电科技有限公司 filed Critical 嘉兴海虹机电科技有限公司
Publication of WO2018032792A1 publication Critical patent/WO2018032792A1/zh

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Classifications

    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47BTABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B9/00Tables with tops of variable height
    • A47B9/16Tables 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
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16FSPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F1/00Springs
    • F16F1/02Springs made of steel or other material having low internal friction; Wound, torsion, leaf, cup, ring or the like springs, the material of the spring not being relevant
    • F16F1/04Wound springs
    • F16F1/06Wound springs with turns lying in cylindrical surfaces
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M99/00Subject matter not provided for in other groups of this subclass
    • G01M99/001Testing of furniture, e.g. seats or mattresses
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M99/00Subject matter not provided for in other groups of this subclass
    • G01M99/007Subject matter not provided for in other groups of this subclass by applying a load, e.g. for resistance or wear testing
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47BTABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B2200/00General construction of tables or desks
    • A47B2200/0035Tables or desks with features relating to adjustability or folding
    • A47B2200/005Leg adjustment

Definitions

  • the present invention relates to an office article, and more particularly to a folding lift table workstation.
  • the automatic lifting table is generally powered by electricity, and the height of the lifting table is adjusted by a motor control mechanism, and the height of the lifting table can also be adjusted by a compressor controlling a gas pressure bar or a hydraulic rod.
  • the structure of the lift table described in the table is realized by the torsion spring at the fixed end of the table leg.
  • this structure has a very obvious disadvantage, that is, the torsion spring elasticity is basically constant throughout the lifting process, and in the process of the lifting table rising from the lowest position, the lowest position ⁇ spring needs to provide the maximum force, which is required during the ascending process. The elasticity is gradually reduced. If the elastic force is constant, there will be either the lowest position, the lack of elasticity, and the need for artificial assistance. If the elasticity is too large, the desktop will rise rapidly and the actual use will be poor.
  • the non-automatic lifting table using the tension spring in the prior art has the same disadvantages.
  • the present invention provides a simple structure and good use effect.
  • the folding lift table workstation with a stable rising process and a substantially constant rising speed.
  • a folding lifting table workstation includes a workstation desktop, a support upper leg on the workstation, a lower support leg of the workstation, and a lifting device, wherein the lifting device is connected to the supporting leg of the workstation and the supporting leg of the workstation, and the workstation desktop is fixed at
  • the lifting device includes a main support rod, a sub-support rod, and an elastic element disposed on the first elastic member and the lower support leg of the upper support leg, wherein the first elastic member is a elastic elastic member
  • the main support rod and the auxiliary support rod are disposed in an intersecting manner and are hingedly fixed at the intersection position;
  • the support leg of the workstation is provided with a guide rail, one end of the main support rod is a main sliding end and is slidably connected with a guide rail of a supporting foot on the workstation, and the other end of the main support rod is a main fixed end and is hinged Fixed on the support foot under the workstation;
  • One end of the auxiliary support rod is a sub-fixed end and is hingedly fixed on the support leg of the workstation, and the other end of the auxiliary support rod is a sub-sliding end and is slidably connected to the lower support leg of the workstation.
  • the elastic elastic member is formed by connecting two or more springs having different elastic coefficients, or a spring having two or more elastic coefficients.
  • the two ends of the guide rails of the supporting legs of the workstation respectively have or are provided with a fixing portion 1 and a fixing portion 2, and a sliding rod disposed parallel to the guiding rail is disposed between the two fixing portions;
  • the sleeve is provided with a resilient elastic element.
  • the elastic elastic member includes a front elastic member and a rear elastic member; one end of the front elastic member is connected to the main sliding end, and the other end of the front elastic member is connected and fixed to the rear elastic member, and the rear elastic is fixed.
  • the component is fixed on the fixing portion, and the elastic modulus of the front elastic member is smaller than the elastic modulus of the rear elastic member.
  • the elastic elastic element is a variable pitch spring, one end of the variable pitch spring is connected with the main sliding end, and the other end of the variable pitch spring is fixed on the fixed part, and the elastic coefficient of the variable pitch spring near the main sliding end Less than the elastic coefficient near a fixed part.
  • the two ends of the guide rails of the support legs of the workstation are respectively provided with a fixing piece and a fixing plate, and the fixing piece and the fixing plate are respectively fixed
  • a sliding compartment disposed parallel to the guide rail is disposed between the plates, wherein the sliding compartment is provided with a resilient elastic element; and the main sliding end is further provided with a topsheet, wherein the topsheet is located in the sliding compartment and is located in the same manner as the elastic elastic component
  • one end of the elastic elastic member is connected to the fixing piece, and the other end of the elastic elastic member is in contact with the top sheet in the compression cymbal, and the table top of the workstation is at the highest position, and the elastic elastic member is not in contact with the top sheet.
  • the elastic elastic member includes a front elastic member and a rear elastic member; one end of the rear elastic member is connected to the fixing piece, and the other end of the rear elastic member is connected to one end of the front elastic member, and the front elastic portion The other end of the component is in contact with the topsheet in the compression crucible, and the elastic modulus of the front elastic component is smaller than the elastic modulus of the rear elastic component.
  • the elastic elastic element is a variable pitch spring, and the elastic coefficient of the variable pitch spring near the top sheet is smaller than the elastic coefficient near the fixed piece.
  • the lower support leg of the workstation comprises a bottom wall and at least one side wall; the side wall is provided with a sliding slot, the sliding direction of the sliding slot is consistent with the sliding direction of the guide rail; a bolt matching the sliding groove and slidable along the sliding groove, wherein the bolt is connected to the auxiliary sliding end; the auxiliary sliding end is connected to one end of the elastic member, and the other end of the elastic member is fixed under the workstation On the feet.
  • the main fixed end of the main support rod is connected to the outer side of the side wall of the lower support leg of the workstation, and the auxiliary fixed end of the auxiliary support rod is connected to the inner side of the side wall of the lower support leg of the workstation.
  • a plurality of card slots or latches are disposed on the rail; a wrench is disposed on the supporting leg of the workstation, and the wrench is further connected with a card strip, and the card slot is provided with a card slot or a latching tooth on the rail Matching tabs or slots.
  • the lifting device further includes an auxiliary support rod disposed at an intersection of the main support rod and the auxiliary support rod, the auxiliary support rod is hinged at an end position at one end, and the other end of the auxiliary support rod is hinged at Support feet on the workstation.
  • the lifting device is two sets, symmetrically disposed under the workstation table top, and a cross bar is disposed between the main sliding ends of the two sides, and the cross bar can be connected to the main sliding ends of the two sides by welding, bolting, riveting.
  • variable pitch spring The manufacturing method of the variable pitch spring is as follows:
  • the heat treatment process, the formed variable pitch spring is kept at 300 degrees for 20 minutes, and naturally cooled to room temperature in the air;
  • the detection process the heat-treated spring is compressed to 123mm ⁇ , the spring force should be 169N ⁇ 10 ⁇ 3 ⁇ 4; the heat-treated spring is compressed to 97mm ⁇ , the spring force should be 327N ⁇ 10 ⁇ 3 ⁇ 4;
  • the qualified spring is electroplated to prevent rust.
  • the main support bar and the auxiliary support bar can completely overlap, saving the storage space of the folding lift table workstation.
  • the folding lift table workstation of the present invention has the following advantages:
  • the folding lift table workstation of the present invention basically maintains a constant speed during the lifting process, and does not appear to be lifted. , need human assistance, or quickly lift, use poor performance.
  • the elastic elastic element is sleeved on the sliding rod, so that the spring is compressed along the direction of the sliding rod, and the distortion is not easy to occur.
  • variable elastic member is disposed in the sliding compartment to reduce noise during the working of the spring.
  • the crossbar connects two main sliding ends that are unrelated to each other to achieve the effect of sliding synchronization, and increase the stability of the lifting table to rise or fall.
  • the invention has the characteristics of simple structure, good use effect, and stable rising process.
  • 1 is a schematic view of a first overall structure of an embodiment of the present invention
  • 2 is a schematic structural diagram of a first state according to an embodiment of the present invention
  • FIG. 3 is a schematic structural diagram of a second state according to an embodiment of the present invention.
  • FIG. 4 is a schematic structural view of a support foot on a workstation according to an embodiment of the present invention.
  • FIG. 5 is a schematic structural view of a support foot of a workstation according to an embodiment of the present invention.
  • FIG. 6 is a schematic view showing a second overall structure of an embodiment of the present invention.
  • FIG. 7 is a schematic view showing a state of a second structure according to an embodiment of the present invention.
  • FIG. 8 is a schematic structural view of a supporting foot on a workstation according to a second structure of the embodiment of the present invention.
  • FIG. 9 is a schematic structural view of an auxiliary support rod in the present invention.
  • This embodiment provides a folding lifting table workstation, as shown in FIG. 1, comprising a workstation desktop 1, a support foot 2 on the workstation, a lower support leg 3 and a lifting device, and a lifting device connected to the supporting foot 2 on the workstation
  • the workstation desktop 1 is fixed on the support foot 2 on the workstation
  • the lifting device comprises a main support rod 4 and a sub-support rod 5, the main support rod 4 and the sub-support rod 5 are arranged at the intersection, the main support rod 4 and The midpoints of the auxiliary support rods 5 are intersections and are fixed by screws, and the support legs 2 on the workstation are arranged in parallel.
  • a fixing portion 21 and a fixing portion 22 are disposed between the fixing portion 21 and the fixing portion 22, and the lower support leg 3 includes a bottom wall 31 and a side wall 32.
  • the main support rod 4 has one end at one end.
  • the main fixed end 41 is hingedly fixed to the end of the lower support leg 3 of the workstation, and the other end of the main support rod 4 is a main sliding end 42 and is slidably connected to the guide rail 9 of the support leg 2 on the workstation.
  • the auxiliary fixed end 51 is hingedly fixed to the end of the support leg 2 on the workstation, and the other end of the auxiliary support bar 5 is a sub-sliding end 52 and is slidably coupled to the lower support leg 3 of the workstation.
  • the support leg 2 on the workstation and the lower support leg 3 of the workstation are made of angle steel, and the main support bar 4 and the sub-support bar 5 are composed of strip steel sheets.
  • the main fixed end 41 of the main support rod 4 is fixed to the front end of the lower support leg 3 of the workstation, and can be fixed by screws, so that the main support rod 4 can rotate around the front end of the lower support leg 3 of the workstation;
  • the main sliding end 42 can be A sliding block, the sliding block has a sliding groove, and the sliding groove is affixed with the guide rail 9 to slide along the guide rail 9, and the main sliding end 42 can slide the main support rod 4 along the supporting foot 2 on the workstation.
  • auxiliary support bar 5 can also be fixed by the same method.
  • the upper surface of the guide rail 9 is provided with a plurality of card slots 91.
  • the support bar 2 of the workstation is provided with a wrench 8 and the wrench 8 is connected with the card bar.
  • the card bar is disposed equal to the card slot 91.
  • the number of latches, the latches and the slot 91 cooperate with each other.
  • the wrench 8 and the clip form a rocker structure, and the wrench 8 drives the card to rotate around the axis of the wrench, and then the latch is inserted into the slot 91, causing the surface of the guide rail 9 to be uneven, so that the main sliding along the guide rail 9
  • the sliding end 42 is fixed at a certain position on the guide rail 9, thereby ensuring that the entire folding and lifting station is in a stable state.
  • a sliding rod 10 is further disposed between the fixing portion 21 and the fixing portion 22 of the support leg 2 on the workstation.
  • the sliding rod 10 is disposed in parallel with the guide rail 9, and the sliding rod 10 is sleeved
  • An elastic member, one end of the first elastic member is coupled to the main sliding end 42, and the other end of the first elastic member is fixed to the fixing portion 21.
  • the first elastic member may be connected by a plurality of springs having different elastic coefficients, or may be one spring having different elastic coefficients.
  • the first elastic member includes a front elastic member 11 and a rear elastic member 12. One end of the front elastic member 11 is coupled to the main sliding end 42, and the other end of the front elastic member 11 is elastic with the rear.
  • the member 12 is fixedly connected, and the rear elastic member 12 is fixed to the fixing portion 21, and the elastic modulus of the rear elastic member 12 is larger than the elastic modulus of the front elastic member 11.
  • the lower support leg 3 of the workstation includes a bottom wall 31 and a side wall 32.
  • the lower support leg 3 of the workstation is provided with an elastic member 6, and one end of the elastic member 6 is fixed to the lower support leg 3 of the workstation. The other end of the elastic member 6 is connected to the auxiliary sliding end 52.
  • the side wall 32 of the lower supporting leg 3 of the workstation is provided with a sliding slot 7.
  • the sliding slot 7 extends in the same direction as the guide rail 9.
  • the bolt 13 is provided with a bolt 13 and a bolt 13 The head is left outside the side wall 32, the threaded portion of the bolt 13 is connected to the sub-sliding end 52 through the chute 7, and the sub-sliding end 52 is slid over the bottom wall 31.
  • the bolt 13 on the chute 7 increases the frictional force between the head of the bolt 13 and the chute 7 by the pre-tightening force, thereby increasing the sliding resistance of the auxiliary sliding end 52, weakening the contraction force of the elastic member 6, and controlling the sub-sliding
  • the end 52 supports the sliding speed within the foot 3 under the workstation.
  • the working principle of the lifting workstation in this embodiment is as follows: When the workstation desktop 1 is lowered, the main sliding end 42 of the main support bar 4 slides backward, and the front elastic member 11 starts to work and is compressed to a dead point and then stops. After the elastic member 11 is stopped, the rear elastic member 12 is still in a compressed state until the workstation table 1 reaches the lowest point, and the rear elastic member 12 reaches the maximum compression state. During the descending process of the workstation table 1, the tension spring 6 is always pulled. Stretch the state, and reach the maximum stretch state on the workstation desktop 1 to reach the maximum stretch state, and pull the wrench 8 to lock the workstation desktop 1 to the current position.
  • the workstation table 1 is raised, because the rear elastic member 12 has a large elastic coefficient, so that the rear elastic member 12 can provide a large elastic force at the initial stage of the ascending phase, and the first elastic member and the tension spring 6 cooperate.
  • the lifting workstation can overcome the large resistance at the initial stage of the ascending phase, and realize lifting without human assistance; and in the middle and late stages of the ascending phase, the rear elastic member 12 is extended to the initial state and then stopped, and the rear elastic member 12 is elongated.
  • the front elastic member 11 is still in an extended state, and the same as the lifting resistance, the workstation table 1 can still maintain a relatively stable lifting speed without causing rapid lifting until the workstation desktop 1 reaches the highest point. .
  • the first elastic element is a variable pitch spring, one end of the variable pitch spring is connected to the main sliding end 42, and the other end of the first elastic element is fixed on the fixed portion 21.
  • the modulus of elasticity of the variable pitch spring near the main sliding end (42) is smaller than the modulus of elasticity near the fixed portion (21).
  • the working principle of the lifting workstation is as follows: The workstation table top 1 is lowered, the main sliding end 42 of the main support rod 4 slides backward, the first elastic member is in a compressed state, the tension spring 6 is in a stretched state, and is on the workstation desktop.
  • the first elastic member When the lowest point is reached, the first elastic member is in the maximum compression state, the tension spring 6 is in the maximum tension state, and the wrench 8 is pulled to lock the workstation table 1 in the current position.
  • the workstation table 1 rises, and the first elastic member can provide a large elastic force at the initial stage of the ascending phase due to the action of the variable pitch spring.
  • the lifting workstation Under the joint action of the first elastic member and the tension spring 6, the lifting workstation can overcome the rise.
  • the large resistance at the beginning of the stage can realize the lifting without the need of human assistance; in the middle and late stages of the rising phase, the elastic force provided by the variable pitch spring is reduced, and the platform desktop 1 can still remain relatively stable due to the lowering of the lifting resistance.
  • the lifting speed is raised without causing a rapid rise, and the workstation table 1 reaches the highest point, and the first elastic member and the tension spring 6 are substantially restored to the initial state.
  • the lifting device is connected to the support leg 2 on the workstation and the lower support leg 3 of the workstation.
  • the workstation table 1 (not shown) is fixedly fixed on the support leg 2 of the workstation, and the lifting device comprises a main support bar 4 And the auxiliary support rod 5, the main support rod 4 and the auxiliary support rod 5 are arranged at intersection, the middle point of each of the main support rod 4 and the auxiliary support rod 5 is an intersection point and is fixed by screws, and the support foot 2 on the workstation is arranged in parallel with a fixed
  • a slide rail 9 is disposed between the fixing piece 23 and the fixing plate 24, and between the fixing piece 23 and the fixing plate 24, and a sliding compartment 17 disposed parallel to the guide rail 9 is disposed between the fixing piece 23 and the fixing plate 24; a bottom wall 31 and a side wall 32, the main support rod 4 has one end as the main fixed end 41 and is hingedly fixed to the end of the lower support leg 3 of the workstation, and the other end of the main support rod 4 is a
  • the auxiliary support rod 5 On the guide rail 9 of the support foot 2 on the workstation, the auxiliary support rod 5 is the auxiliary fixed end 51 and is hingedly fixed to the end of the supporting foot 2 on the workstation. The other end of the auxiliary support rod 5 is the auxiliary sliding end 52 and is slidably connected. Support the foot 3 under the workstation.
  • a cross bar 15 is disposed between the main sliding ends 42.
  • the cross bar 15 can be connected to the main sliding ends 42 on both sides by welding, bolting, riveting, etc., since the lifting table generally has two supporting legs on the workstation 2
  • the support legs 2 of each workstation are provided with a main sliding end 42; at the workstation working, two mutually unrelated main sliding ends 42 slide on the support legs 2 on the respective workstations, and the crossbar 15 will be two without each other.
  • the associated main sliding ends 42 are connected together to achieve the effect of sliding synchronization, increasing the stability of the lifting table ascending or descending.
  • the support leg 2 on the workstation and the lower support leg 3 of the workstation are composed of angle steel, and the main support bar 4 and the sub support bar 5 are composed of strip steel sheets, and the respective midpoints of the main support rod 4 and the sub support rod 5 are one Bolt hole, bolt hole
  • the main support rod 4 and the sub-support rod 5 are fixed by bolts, and the main support rod 4 and the sub-support rod 5 are rotatable around a fixed point.
  • One end of the main support rod 4 is a main fixed end 41, and the main fixed end 41 is fixed at the front end of the lower support leg 3 of the workstation, and can be fixed by screws, so that the main support rod 4 can rotate around the front end of the lower support leg 3 of the workstation;
  • the main sliding end 42 may be a sliding block having a sliding groove which is affixed with the guide rail 9 and slid along the guide rail 9, and the main sliding end 42 allows the main support rod 4 to slide along the support foot 2 on the workstation.
  • the sub-support bar 5 can also be fixed by the same method.
  • a plurality of card slots 91 are disposed on the upper surface of the guide rail 9.
  • a wrench 8 is disposed on the supporting leg 2 of the workstation, a rack is connected to the wrench 8, and a number of cards are disposed on the rack corresponding to the card slot 91.
  • the teeth, the latches and the slot 91 cooperate with each other.
  • the latches are inserted into the slot 91, causing the surface of the guide rail 9 to be uneven, so that the main sliding end 42 sliding along the guide rail 9 can be fixed at a certain position on the guide rail 9.
  • the main sliding end 42 is stably slid on the guide rail 9, thereby ensuring that the entire folding lifting workstation is in a stable state.
  • the wrench 8 drives the rack to release the latch from the slot 91, the surface of the rail 9 becomes smooth and unobstructed, and the main sliding end 42 can continue to slide along the guide rail 9.
  • a sliding compartment 17 is further disposed between the fixing piece 23 and the fixing plate 24 of the support leg 2 on the workstation, and the first elastic member 14 is disposed in the sliding compartment 17, and the main sliding end 42 is further provided.
  • a topsheet 16 is provided, the topsheet 16 being located within the sliding compartment and located on the same radial axis as the first resilient component.
  • One end of the first elastic member 14 is coupled to the fixing piece 23, and the first elastic member 14 is in contact with the top sheet 16 at the other end of the compression yoke, and the table top 1 is at the highest position ⁇ , and the first elastic member 14 is not in contact with the top sheet 16.
  • the first elastic member 14 may be a retractable strip-shaped member such as a spring.
  • the first elastic member may be connected by a plurality of springs having different elastic coefficients, or may be one spring having different elastic coefficients.
  • the first elastic member 14 is a variable pitch spring. The modulus of elasticity in the variable pitch spring near the topsheet 16 is less than the modulus of elasticity near the tab 23.
  • the working principle of the lifting workstation in this embodiment is as follows: The workstation desktop 1 is lowered, and the main support bar 4 is the main The sliding end 42 slides backward. After a period of idle travel, the first elastic member 14 is pressed by the top pressure of the top sheet 16, and stops after the compression dead point, and the workstation desktop 1 reaches the lowest point on the workstation desktop 1 During the lowering process, the tension spring 6 is always stretched, and reaches the lowest point on the workstation table 1 to reach the maximum tension state, and the wrench 8 is pulled to lock the workstation table 1 in the current position.
  • the first elastic member 14 can provide a large elastic force at the initial stage of the ascending phase, and under the joint action of the first elastic member 14 and the tension spring 6, the lifting workstation can Overcoming the large resistance at the beginning of the ascending phase, the lifting can be realized without human assistance; in the middle and late stages of the ascending phase, the elastic force provided by the variable pitch spring is reduced, and the workstation table 1 can still remain relative due to the lowering of the lifting resistance.
  • the steady lifting speed does not cause a rapid rise, the workstation table top 1 reaches the highest point, the first elastic member 14 returns to the initial state, and the pressing top sheet 16 pushes the main sliding end 42 back to the original position.
  • the first elastic member 14 includes a front elastic member and a rear elastic member.
  • One end of the rear elastic member is connected to the fixing piece 23, and the other end of the rear elastic member is connected to one end of the front elastic member.
  • the other end of the resilient member is in contact with the topsheet 16 in a compression port, and the topsheet 16 is fixedly coupled to the main sliding end 42 of the main support bar 4.
  • the elastic modulus of the front elastic member is smaller than the elastic modulus of the rear elastic member.
  • the working principle of the lifting workstation is as follows: After the workstation table 1 is lowered, the main sliding end 42 of the main support bar 4 slides backward, and after a period of idle travel, the front elastic member is pressed by the top plate 16 Work, the front elastic part starts working and compresses to the dead point and stops. After the current elastic part stops working, the rear elastic part is still in compression until the workstation desktop 1 reaches the lowest point, and the rear elastic part reaches the maximum compression state.
  • the tension spring 6 is always stretched, and reaches the lowest point on the workstation table 1 to reach the maximum tension state, and the wrench 8 is pulled to lock the workstation desktop 1 at the current position.
  • the workstation table 1 is raised, because the rear elastic member 12 has a large elastic coefficient, so that the rear elastic member 12 can provide a large elastic force at the initial stage of the ascending phase, and the first elastic member 14 and the tension spring 6 are common.
  • the lifting workstation can overcome the large resistance at the initial stage of the ascending phase, and realize the lifting without the need of human assistance.
  • the rear elastic member 12 is extended to the initial state and then stopped, and the rear elastic member 12 is pulled. After the extension is stopped, the front elastic member 11 is still in an extended state, and the same as the lifting resistance, the workstation table 1 can still maintain a relatively stable lifting speed without causing rapid lifting until the workstation table 1 reaches the highest level. point.
  • the manufacturing method of the variable pitch spring is as follows:
  • the heat treatment process, the formed variable pitch spring is kept at 300 degrees for 20 minutes, and naturally cooled to room temperature in the air;
  • the detection process the heat-treated spring is compressed to 123mm ⁇ , the spring force should be 169N ⁇ 10 ⁇ 3 ⁇ 4; the heat-treated spring is compressed to 97mm ⁇ , the spring force should be 327N ⁇ 10 ⁇ 3 ⁇ 4;
  • the tested spring is subjected to electroplating treatment to prevent rust.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Tables And Desks Characterized By Structural Shape (AREA)
  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
  • Sewing Machines And Sewing (AREA)

Abstract

一种折叠升降桌工作站,包括工作站桌面(1)、工作站上支撑脚(2)、工作站下支撑脚(3)和升降装置,升降装置包括主支撑杆(4)、副支撑杆(5)以及设置在上支撑脚的变弹力弹性元件和下支撑脚的弹性元件(6),主支撑杆(4)和副支撑杆(5)交叉设置,上支撑脚(2)和下支撑脚(3)为条状带有凹槽结构,上支撑脚(2)上设置有导轨(9),主支撑杆(4)一端为主固定端(41),固定连接在下支撑脚(3)的端部,主支撑杆(4)的另一端(42)为主滑动端,滑动连接在上支撑脚(2)的导轨(9)上。

Description

说明书 发明名称:折叠升降桌工作站
技术领域
[0001] 本发明涉及一种办公用品, 尤其是一种折叠升降桌工作站。
背景技术
[0002] 经过研究学者对世界家具的发展史的考察发现: 人类直立行走后在日常活动中 发现坐下有利于减轻疲劳, 从而发明了坐具。 这种坐着工作的方式随之传承下 来, 但随着人们坐着办公的吋间越来越长, 人们逐渐意识到久坐反而不利于工 作效率的提高, 人们幵始尝试坐和站立的交替式办公, 渐渐的升降桌也就出现 了, 使用升降桌站式办公成为一种流行的健康办公方式。 升降桌一般分为自动 升降桌和非自动升降桌。
技术问题
[0003] 自动升降桌一般是以电为动力来源, 通过电动机控制机械装置来调节升降桌的 高低, 也可以通过压缩机控制气压棒或液压棒来调节升降桌的高度。 优点: 用 电量很小、 样式稳固美观、 可升降范围大。 此类桌有单柱及双柱形式, 升降方 式有遥控及手控两种。 缺点: 成本较高, 其主要升降依赖电动等升降系统, 需 要外接电源, 升降系统的好坏决定其使用寿命。
[0004] 现有市场上现有的非自动升降桌, 它是自动升降桌的简化, 它省去了电动机或 压缩机, 通过人力来调节机械装置、 液压棒、 气压棒, 其优点是成本较低。 但 现有的非自动升降桌一般依靠弹簧来实现升降, 如专利文献 1 (CN205390787U
) 记载的升降桌结构, 是依靠桌脚固定端的扭簧实现升降。 但这个结构存在一 个非常明显的缺点, 就是在整个升降过程中扭簧弹力基本恒定, 而升降桌从最 低位置上升的过程中, 最低位置吋弹簧需要提供的力最大, 在上升过程中所需 要的弹力逐渐减小。 而如果弹力恒定, 则会出现要么最低位置上升吋弹力不足 , 需要人为辅助升起; 要么弹力过大, 则会出现桌面快速抬升, 实际使用效果 不佳。 现有技术中使用拉簧的非自动升降桌存在同样的缺点。
问题的解决方案 技术解决方案
[0005] 针对现有技术所存在的上述技术问题, 本发明提供一种结构简单, 使用效果好
, 上升过程平稳, 上升速度基本恒定的折叠升降桌工作站。
[0006] 为实现上述目的, 本发明采用了如下技术方案:
[0007] 一种折叠升降桌工作站, 包括工作站桌面、 工作站上支撑脚、 工作站下支撑脚 和升降装置, 所述升降装置连接所述工作站上支撑脚和工作站下支撑脚, 所述 工作站桌面固定在所述工作站上支撑脚上, 所述升降装置包括主支撑杆、 副支 撑杆以及设置在上支撑脚的第一弹性元件和下支撑脚的弹性元件, 所述第一弹 性元件为变弹力弹性元件, 所述主支撑杆和副支撑杆呈交叉设置并于交叉位置 处铰接固定;
[0008] 所述工作站上支撑脚上设置有导轨, 所述主支撑杆的一端为主滑动端并与工作 站上支撑脚的导轨呈滑动连接, 所述主支撑杆另一端为主固定端并铰接固定在 工作站下支撑脚上;
[0009] 所述副支撑杆一端为副固定端并铰接固定在工作站上支撑脚上, 所述副支撑杆 的另一端为副滑动端并滑动连接在工作站下支撑脚上。
[0010] 所述变弹力弹性元件由 2个及以上弹性系数的不同的弹簧连接而成, 或是 2段及 以上弹性系数不同的一根弹簧。
[0011] 所述工作站上支撑脚的导轨两端分别具有或设有固定部一和固定部二, 所述两 个固定部之间设有与导轨呈平行设置的滑动杆; 所述滑动杆上套设有变弹力弹 性元件。
[0012] 所述变弹力弹性元件包括前置弹性部件和后置弹性部件; 前置弹性部件的一端 与主滑动端连接, 前置弹性部件的另一端与后置弹性部件连接固定, 后置弹性 部件固定在固定部一上, 前置弹性部件的弹性系数小于后置弹性部件的弹性系 数。
[0013] 所述变弹力弹性元件为变节距弹簧, 变节距弹簧的一端与主滑动端连接, 变节 距弹簧的另一端固定在固定部一上, 变节距弹簧中靠近主滑动端处的弹性系数 小于靠近固定部一处的弹性系数。
[0014] 所述工作站上支撑脚的导轨两端分别设有固定片和固定板, 所述固定片与固定 板之间设有与导轨呈平行设置的滑动仓, 所述滑动仓内设置有变弹力弹性元件 ; 主滑动端上还设置有顶片, 顶片位于滑动仓内并与变弹力弹性元件位于相同 的径向轴线上, 变弹力弹性元件的一端与固定片连接, 变弹力弹性元件的另一 端在压缩吋与顶片接触, 工作站桌面位于最高位置吋, 变弹力弹性元件与顶片 不接触。
[0015] 所述变弹力弹性元件包括前置弹性部件和后置弹性部件; 后置弹性部件的一端 与固定片连接, 后置弹性部件的另一端与前置弹性部件的一端相连, 前置弹性 部件的另一端在压缩吋与顶片接触, 前置弹性部件的弹性系数小于后置弹性部 件的弹性系数。
[0016] 所述变弹力弹性元件为变节距弹簧, 变节距弹簧中靠近顶片处的弹性系数小于 靠近固定片处的弹性系数。
[0017] 所述工作站下支撑脚包括底壁和至少一个侧壁; 所述侧壁上设置滑槽, 所述滑 槽的滑动方向与导轨滑动方向一致; 还包括可由滑槽外侧穿过滑槽并与滑槽匹 配并可沿着滑槽滑动的螺栓, 所述螺栓和所述副滑动端连接; 所述副滑动端连 接于弹性部件的一端, 所述弹性部件的另一端固定在工作站下支撑脚上。
[0018] 所述主支撑杆的主固定端连接工作站下支撑脚的侧壁外侧, 副支撑杆的副固定 端连接在工作站下支撑脚的侧壁内侧。
[0019] 所述导轨上设置若干卡槽或卡齿; 所述工作站上支撑脚上设置扳手, 所述扳手 还连接有一根卡条, 卡条上设置与所述导轨上的卡槽或卡齿相匹配的卡齿或卡 槽。
[0020] 所述升降装置还包括辅助支撑杆, 所述辅助支撑杆设置在主支撑杆和副支撑杆 交叉位置处, 所述辅助支撑杆一端铰接于交叉位置处, 辅助支撑杆另一端铰接 于工作站上支撑脚。
[0021] 所述升降装置为两套, 对称设置在工作站桌面下方, 两侧主滑动端之间设置有 横杆, 横杆可以通过焊接、 螺栓连接、 铆接的方式与两侧主滑动端连接。
[0022] 所述变节距弹簧的制造方法如下:
[0023] 1、 成型工序, 将弹簧钢成型为变节距弹簧, 其中, 弹簧总长 164-167mm, 总 圈数 33, 弹簧钢丝直径为 2.3mm±0.02mm, 弹簧外圈直径为 14-16mm, 第一节距 处总长为 41mm±0.5mm, 有效圈数为 10, 第二节距在 40mm±0.5mm内的有效圈数 为 5 ;
[0024] 2、 热处理工序, 将成型的变节距弹簧 300度保温 20分钟, 并在空气中自然冷却 至室温;
[0025] 3、 检测工序, 将热处理后的弹簧压缩至 123mm吋, 弹簧力应为 169N±10<¾; 将 热处理后的弹簧压缩至 97mm吋, 弹簧力应为 327N±10<¾ ;
[0026] 4、 将检测合格的弹簧进行电镀处理, 防止生锈。
[0027] 当折叠升降桌工作站完全收拢吋, 主支撑杆和副支撑杆可完全重叠, 节省折叠 升降桌工作站的存放空间。
[0028] 本发明中折叠升降桌工作站具有以下优点:
[0029] 1、 通过设置在上支撑脚的变弹力弹性元件和下支撑脚的弹性元件的组合, 使 得本发明中的折叠升降桌工作站在抬升过程中, 基本保持速度恒定, 不会出现 无法抬升, 需要人力辅助, 或者快速抬升, 使用效果不佳的情况。
[0030] 2、 通过设置在主支撑杆和副支撑杆交叉位置处的辅助支撑杆, 使得折叠升降 桌工作站在升降过程中更容易保持稳定, 同吋使得工作站桌面在最高位置处稳 定性更强。
[0031] 3、 将变弹力弹性元件套设在滑动杆上, 可使得弹簧沿着滑动杆的方向压缩, 不容易出现扭曲。
[0032] 4、 将变弹力弹性元件设置在滑动仓内, 可以减少弹簧工作过程中的噪音。
[0033] 5、 横杆将两个互相无关联的主滑动端连接在一起, 达到滑动同步的效果, 增 加升降桌上升或下降的稳定性。
[0034] 综上, 本发明具有结构简单, 使用效果好, 上升过程平稳等特点。
发明的有益效果
有益效果
[0035] 在此处键入有益效果描述段落。
对附图的简要说明
附图说明
[0036] 图 1为本发明实施例第一种整体结构示意图; [0037] 图 2为本发明实施例第一种状态结构示意图;
[0038] 图 3为本发明实施例第二种状态结构示意图;
[0039] 图 4为本发明实施例工作站上支撑脚结构示意图;
[0040] 图 5为本发明实施例工作站下支撑脚结构示意图;
[0041] 图 6为本发明实施例第二种整体结构示意图;
[0042] 图 7为本发明实施例第二种结构的状态示意图;
[0043] 图 8为本发明实施例第二种结构的工作站上支撑脚结构示意图。
[0044] 图 9为本发明中辅助支撑杆结构示意图。
[0045] 附图标记说明: 1-工作站桌面, 2-工作站上支撑脚, 3-工作站下支撑脚, 4-主 支撑杆, 5-副支撑杆, 6-弹性部件, 7-滑槽, 8-扳手, 9-导轨, 10-滑动杆, 11- 前置弹性部件, 12-后置弹性部件, 13-螺栓, 14-第一弹性部件, 15-横杆, 16-顶 片, 17-滑动仓, 18-辅助支撑杆, 21-固定部一, 22-固定部二, 23-固定片, 24- 固定板, 31-底壁, 32-侧壁, 41-主固定端, 42-主滑动端, 51-副固定端, 52-副 滑动端, 91-卡槽。
实施该发明的最佳实施例
本发明的最佳实施方式
[0046] 在此处键入本发明的最佳实施方式描述段落。
本发明的实施方式
[0047] 为了进一步理解本发明, 下面结合实施例对本发明优选实施方案进行描述, 但 是应当理解, 这些描述只是为进一步说明本发明的特征和优点, 而不是对本发 明权利要求的限制。
[0048] 实施例 1
[0049] 本实施例提供了一种折叠升降桌工作站, 如附图 1所示, 包括工作站桌面 1, 工 作站上支撑脚 2, 工作站下支撑脚 3和升降装置, 升降装置连接工作站上支撑脚 2 和工作站下支撑脚 3, 工作站桌面 1覆盖固定在工作站上支撑脚 2上, 升降装置包 括主支撑杆 4和副支撑杆 5, 主支撑杆 4和副支撑杆 5交叉设置, 主支撑杆 4和副支 撑杆 5各自的中点为交叉点并通过螺钉固定, 工作站上支撑脚 2上平行设置有一 个固定部一 21和一个固定部二 22, 固定部一 21和固定部二 22之间设置有导轨 9, 工作站下支撑脚 3包括一个底壁 31和一个侧壁 32, 主支撑杆 4一端为主固定端 41 并铰接固定在工作站下支撑脚 3的端部, 主支撑杆 4的另一端为主滑动端 42并滑 动连接在工作站上支撑脚 2的导轨 9上, 副支撑杆 5—端为副固定端 51并铰接固定 在工作站上支撑脚 2的端部, 副支撑杆 5的另一端为副滑动端 52并滑动连接在工 作站下支撑脚 3上。 工作站上支撑脚 2和工作站下支撑脚 3由角钢构成, 主支撑杆 4和副支撑杆 5由条形钢片构成。
[0050] 主支撑杆 4的主固定端 41固定在工作站下支撑脚 3的前端, 并可通过螺钉固定, 使主支撑杆 4可以绕工作站下支撑脚 3的前端转动; 主滑动端 42可以是一个滑动 块, 滑动块幵有滑动槽, 滑动槽与导轨 9贴合并沿着导轨 9滑动, 主滑动端 42可 使主支撑杆 4沿着工作站上支撑脚 2滑动。
[0051] 同理, 副支撑杆 5也可使用相同的方法设置固定。
[0052] 导轨 9的上表面设置若干卡槽 91, 工作站上支撑脚 2上设置扳手 8, 扳手 8上连接 卡条, 在本图所提供的实施例中, 卡条上设置与卡槽 91相等数量的卡齿, 卡齿 与卡槽 91互相配合。
[0053] 扳手 8与卡条构成一个摇杆结构, 扳手 8带动卡条绕扳手轴线转动后将卡齿卡入 卡槽 91内, 造成导轨 9表面凹凸不平, 可使沿着导轨 9滑动的主滑动端 42被固定 在导轨 9上的某个位置, 进而保证整个折叠升降工作站处于稳定状态。
[0054] 当翻转扳手 8吋, 扳手 8带动卡条后将卡齿退出卡槽 91, 导轨 9表面变光滑无阻 , 主滑动端 42可沿着导轨 9滑动。
[0055] 扳手 8与卡条之间的连接和运动方式具有多种, 不局限于本实施例中的方案, 常见的机械连接方案均可采用, 如: 杠杆结构, 通过固定的支点, 扳动扳手 8以 控制卡齿卡入或退出卡槽 91内。
[0056] 如附图 4所示, 工作站上支撑脚 2的固定部一 21和固定部二 22之间还设置有滑动 杆 10, 滑动杆 10与导轨 9平行设置, 滑动杆 10上套有第一弹性部件, 第一弹性元 件的一端与主滑动端 42连接, 第一弹性元件另一端固定在固定部一 21上。 作为 优选, 第一弹性部件可以由多个弹性系数的不同的弹簧连接而成, 也可以是各 段弹性系数不同的一根弹簧。 [0057] 具体而言, 第一弹性元件包含前置弹性部件 11和后置弹性部件 12, 前置弹性部 件 11的一端与主滑动端 42连接, 前置弹性部件 11的另一端与后置弹性部件 12连 接固定, 后置弹性部件 12固定在固定部一 21上, 后置弹性部件 12的弹性系数大 于前置弹性部件 11的弹性系数。
[0058] 如图 5所示, 工作站下支撑脚 3包括一个底壁 31和一个侧壁 32, 工作站下支撑脚 3上设置有弹性部件 6, 弹性部件 6的一端与工作站下支撑脚 3固定, 弹性部件 6的 另一端与副滑动端 52连接; 工作站下支撑脚 3的侧壁 32上设置滑槽 7, 滑槽 7的延 伸方向与导轨 9相同, 滑槽 7外设置螺栓 13, 螺栓 13的头部留在侧壁 32外, 螺栓 1 3的螺纹部穿过滑槽 7与副滑动端 52连接, 副滑动端 52在底壁 31上滑动。
[0059] 滑槽 7上的螺栓 13通过预紧力增加螺栓 13头部与滑槽 7之间的摩擦力, 从而增加 副滑动端 52的滑动阻力, 减弱弹性部件 6的收缩力, 控制副滑动端 52在工作站下 支撑脚 3内的滑动速度。
[0060] 本实施例中升降工作站的工作原理如下: 工作站桌面 1下降吋, 主支撑杆 4的主 滑动端 42向后滑动, 前置弹性部件 11幵始工作并压缩至死点后停止, 当前置弹 性部件 11停止工作后, 后置弹性部件 12仍然处于压缩状态, 直到工作站桌面 1到 达最低点, 后置弹性部件 12达到最大压缩状态, 在工作站桌面 1下降过程中, 拉 簧 6始终处于拉伸状态, 并在工作站桌面 1到达最低点吋, 达到最大拉伸状态, 扳动扳手 8, 使工作站桌面 1锁定在当前位置。 反之工作站桌面 1上升吋, 由于后 置弹性部件 12具有较大的弹性系数, 使得上升阶段初期, 后置弹性部件 12可以 提供较大的弹力, 则在第一弹性元件和拉簧 6的共同作用下, 升降工作站可以克 服上升阶段初期的较大阻力, 实现无需人力辅助即可实现抬升; 而在上升阶段 中后期, 后置弹性部件 12伸长到初始状态后停止, 后置弹性部件 12伸长停止后 , 前置弹性部件 11仍然处于伸长状态, 而同吋由于抬升阻力的降低, 使工作站 桌面 1仍然可以保持相对稳定的抬升速度, 而不会造成快速抬升, 直到工作站桌 面 1达到最高点。
[0061] 或者, 第一弹性元件为变节距弹簧, 变节距弹簧的一端与主滑动端 42连接, 第 一弹性元件另一端固定在固定部一 21上。 变节距弹簧中靠近主滑动端 (42) 处 的弹性系数小于靠近固定部一 (21) 处的弹性系数。 [0062] 则升降工作站的工作原理如下: 工作站桌面 1下降吋, 主支撑杆 4的主滑动端 42 向后滑动, 第一弹性部件处于压缩状态, 拉簧 6处于拉伸状态, 并在工作站桌面 1到达最低点吋, 第一弹性部件处于最大压缩状态, 拉簧 6处于最大拉伸状态, 扳动扳手 8, 使工作站桌面 1锁定在当前位置。 反之工作站桌面 1上升吋, 由于变 节距弹簧的作用, 使得上升阶段初期, 第一弹性部件可以提供较大的弹力, 则 在第一弹性部件和拉簧 6的共同作用下, 升降工作站可以克服上升阶段初期的较 大阻力, 实现无需人力辅助即可实现抬升; 而在上升阶段中后期, 变节距弹簧 提供的弹力降低, 而同吋由于抬升阻力的降低, 使工作站桌面 1仍然可以保持相 对稳定的抬升速度, 而不会造成快速抬升, 工作站桌面 1达到最高点吋, 第一弹 性部件和拉簧 6基本恢复到初始状态。
[0063] 实施例 2
[0064] 如附图 6所示, 升降装置连接工作站上支撑脚 2和工作站下支撑脚 3, 工作站桌 面 1 (未图示) 覆盖固定在工作站上支撑脚 2上, 升降装置包括主支撑杆 4和副支 撑杆 5, 主支撑杆 4和副支撑杆 5交叉设置, 主支撑杆 4和副支撑杆 5各自的中点为 交叉点并通过螺钉固定, 工作站上支撑脚 2上平行设置有一个固定片 23和一个固 定板 24, 固定片 23和固定板 24之间设置有导轨 9, 固定片 23和固定板 24之间设有 与导轨 9呈平行设置的滑动仓 17 ; 工作站下支撑脚 3包括一个底壁 31和一个侧壁 3 2, 主支撑杆 4一端为主固定端 41并铰接固定在工作站下支撑脚 3的端部, 主支撑 杆 4的另一端为主滑动端 42并滑动连接在工作站上支撑脚 2的导轨 9上, 副支撑杆 5—端为副固定端 51并铰接固定在工作站上支撑脚 2的端部, 副支撑杆 5的另一端 为副滑动端 52并滑动连接在工作站下支撑脚 3上。
[0065] 主滑动端 42之间设置有横杆 15, 横杆 15可以通过焊接、 螺栓连接、 铆接等方式 与两侧主滑动端 42连接, 由于升降桌一般带有两个工作站上支撑脚 2, 每个工作 站上支撑脚 2均设置有主滑动端 42; 在工作站工作吋, 两个互相无关联的主滑动 端 42在各自的工作站上支撑脚上 2滑动, 横杆 15将两个互相无关联的主滑动端 42 连接在一起, 达到滑动同步的效果, 增加升降桌上升或下降的稳定性。
[0066] 工作站上支撑脚 2和工作站下支撑脚 3由角钢构成, 主支撑杆 4和副支撑杆 5由条 形钢片构成, 主支撑杆 4和副支撑杆 5的各自中点幵有一个螺栓孔, 螺栓孔内穿 设螺栓将主支撑杆 4和副支撑杆 5固定, 主支撑杆 4和副支撑杆 5可绕固定点转动
[0067] 主支撑杆 4一端为主固定端 41, 主固定端 41固定在工作站下支撑脚 3的前端, 并 可通过螺钉固定, 使主支撑杆 4可以绕工作站下支撑脚 3的前端转动; 主滑动端 4 2可以是一个滑动块, 滑动块幵有滑动槽, 滑动槽与导轨 9贴合并沿着导轨 9滑动 , 主滑动端 42可使主支撑杆 4沿着工作站上支撑脚 2滑动。
[0068] 同理, 副支撑杆 5也可使用相同的方法设置固定。
[0069] 如附图 8所示, 导轨 9的上表面设置若干卡槽 91, 工作站上支撑脚 2上设置扳手 8 , 扳手 8上连接齿条, 齿条上设置与卡槽 91相等数量的卡齿, 卡齿与卡槽 91互相 配合。
[0070] 扳手 8带动齿条后将卡齿卡入卡槽 91内, 造成导轨 9表面凹凸不平, 可使沿着导 轨 9滑动的主滑动端 42被固定在导轨 9上的某个位置, 从而使得主滑动端 42在导 轨 9上稳定不滑动, 进而保证整个折叠升降工作站处于稳定状态。
[0071] 当翻转扳手 8吋, 扳手 8带动齿条后将卡齿退出卡槽 91, 导轨 9表面变光滑无阻 , 主滑动端 42可以沿着导轨 9继续滑动。
[0072] 如附图 7所示, 工作站上支撑脚 2的固定片 23和固定板 24之间还设置有滑动仓 17 , 滑动仓 17内设置有第一弹性部件 14, 主滑动端 42上还设置有顶片 16, 顶片 16 位于滑动仓内并与第一弹性部件位于相同的径向轴线上。 第一弹性部件 14的一 端与固定片 23连接, 第一弹性部件 14在压缩吋其另一端与顶片 16接触, 工作站 桌面 1位于最高位置吋, 第一弹性部件 14与顶片 16不接触。
[0073] 第一弹性部件 14可以是弹簧等可伸缩的条状零件。 作为优选, 第一弹性部件可 以由多个弹性系数的不同的弹簧连接而成, 也可以是各段弹性系数不同的一根 弹簧。 具体而言, 第一弹性部件 14为变节距弹簧。 变节距弹簧中靠近顶片 16处 的弹性系数小于靠近固定片 23处的弹性系数。
[0074] 同吋, 附图 9中, 在主支撑杆 4和副支撑杆 5的交叉位置, 连接有辅助支撑杆 18 , 辅助支撑杆 18—端铰接于交叉位置处, 辅助支撑杆另一端铰接于工作站上支 撑脚 2。
[0075] 本实施例中升降工作站的工作原理如下: 工作站桌面 1下降吋, 主支撑杆 4的主 滑动端 42向后滑动, 在经历一段空行程后, 第一弹性部件 14受顶片 16的顶压幵 始工作, 并压缩死点后停止, 此吋工作站桌面 1到达最低点, 在工作站桌面 1下 降过程中, 拉簧 6始终处于拉伸状态, 并在工作站桌面 1到达最低点吋, 达到最 大拉伸状态, 扳动扳手 8, 使工作站桌面 1锁定在当前位置。 反之工作站桌面 1上 升吋, 由于变节距弹簧的作用, 使得上升阶段初期, 第一弹性部件 14可以提供 较大的弹力, 则在第一弹性部件 14和拉簧 6的共同作用下, 升降工作站可以克服 上升阶段初期的较大阻力, 实现无需人力辅助即可实现抬升; 而在上升阶段中 后期, 变节距弹簧提供的弹力降低, 而同吋由于抬升阻力的降低, 使工作站桌 面 1仍然可以保持相对稳定的抬升速度, 而不会造成快速抬升, 工作站桌面 1达 到最高点吋, 第一弹性部件 14恢复到初始状态, 挤压顶片 16推动主滑动端 42回 到原位。
[0076] 或者第一弹性元件 14包含前置弹性部件和后置弹性部件, 后置弹性部件的一端 与固定片 23连接, 后置弹性部件的另一端与前置弹性部件的一端相连, 前置弹 性部件的另一端在压缩吋与顶片 16接触, 顶片 16与主支撑杆 4的主滑动端 42固定 连接。 前置弹性部件的弹性系数小于后置弹性部件的弹性系数。
[0077] 则升降工作站的工作原理如下: 工作站桌面 1下降吋, 主支撑杆 4的主滑动端 42 向后滑动, 在经历一段空行程后, 前置弹性部件受顶片 16的顶压幵始工作, 前 置弹性部件幵始工作并压缩至死点后停止, 当前置弹性部件停止工作后, 后置 弹性部件仍然处于压缩状态, 直到工作站桌面 1到达最低点, 后置弹性部件达到 最大压缩状态, 在工作站桌面 1下降过程中, 拉簧 6始终处于拉伸状态, 并在工 作站桌面 1到达最低点吋, 达到最大拉伸状态, 扳动扳手 8, 使工作站桌面 1锁定 在当前位置。 反之工作站桌面 1上升吋, 由于后置弹性部件 12具有较大的弹性系 数, 使得上升阶段初期, 后置弹性部件 12可以提供较大的弹力, 则在第一弹性 元件 14和拉簧 6的共同作用下, 升降工作站可以克服上升阶段初期的较大阻力, 实现无需人力辅助即可实现抬升; 而在上升阶段中后期, 后置弹性部件 12伸长 到初始状态后停止, 后置弹性部件 12拉伸停止后, 前置弹性部件 11仍然处于伸 长状态, 而同吋由于抬升阻力的降低, 使工作站桌面 1仍然可以保持相对稳定的 抬升速度, 而不会造成快速抬升, 直到工作站桌面 1达到最高点。 [0078] 变节距弹簧的制造方法如下:
[0079] 1、 成型工序, 将弹簧钢成型为变节距弹簧, 其中, 弹簧总长 164-167mm, 总 圈数 33, 弹簧钢丝直径为 2.3mm±0.02mm, 弹簧外圈直径为 14-16mm, 第一节距 处总长为 41mm±0.5mm, 有效圈数为 10, 第二节距在 40mm±0.5mm内的有效圈数 为 5 ;
[0080] 2、 热处理工序, 将成型的变节距弹簧 300度保温 20分钟, 并在空气中自然冷却 至室温;
[0081] 3、 检测工序, 将热处理后的弹簧压缩至 123mm吋, 弹簧力应为 169N±10<¾; 将 热处理后的弹簧压缩至 97mm吋, 弹簧力应为 327N±10<¾ ;
[0082] 4、 将检测合格的弹簧进行电镀处理, 防止生锈。
[0083] 以上实施例的说明只是用于帮助理解本发明的方法及其核心思想。 应当指出, 对于本技术领域的普通技术人员来说, 在不脱离本发明原理的前提下, 还可以 对本发明进行若干改进和修饰, 这些改进和修饰也落入本发明权利要求的保护 范围内。
工业实用性
[0084] 在此处键入工业实用性描述段落。
序列表自由内容
[0085] 在此处键入序列表自由内容描述段落。

Claims

权利要求书
[权利要求 1] 一种折叠升降桌工作站, 包括工作站桌面 (1) 、 工作站上支撑脚 (2
) 、 工作站下支撑脚 (3) 和升降装置, 所述升降装置连接所述工作 站上支撑脚 (2) 和工作站下支撑脚 (3) , 所述工作站桌面 (1) 固 定在所述工作站上支撑脚 (2) 上, 其特征在于: 所述升降装置包括主支撑杆 (4) 、 副支撑杆 (5) 以及设置在上支撑 脚的第一弹性元件和下支撑脚的弹性元件 (6) , 所述第一弹性元件 为变弹力弹性元件, 所述主支撑杆 (4) 和副支撑杆 (5) 呈交叉设置 并于交叉位置处铰接固定;
所述工作站上支撑脚 (2) 上设置有导轨 (9) , 所述主支撑杆 (4) 的一端为主滑动端 (42) 并与工作站上支撑脚 (2) 的导轨 (9) 呈滑 动连接, 所述主支撑杆 (4) 另一端为主固定端 (41) 并铰接固定在 工作站下支撑脚 (3) 上;
所述副支撑杆 (5) —端为副固定端 (51) 并铰接固定在工作站上支 撑脚 (2) 上, 所述副支撑杆 (5) 的另一端为副滑动端 (52) 并滑动 连接在工作站下支撑脚 (3) 上。
[权利要求 2] 根据权利要求 1所述的折叠升降桌工作站, 其特征在于: 所述变弹力 弹性元件由 2个及以上弹性系数的不同的弹簧连接而成, 或是 2段及以 上弹性系数不同的一根弹簧。
[权利要求 3] 根据权利要求 1或 2所述的折叠升降桌工作站, 其特征在于: 所述工作 站上支撑脚 (2) 的导轨 (9) 两端分别具有或设有固定部一 (21) 和 固定部二 (22) , 所述两个固定部之间设有与导轨 (9) 呈平行设置 的滑动杆 (10) ; 所述变弹力弹性元件套设在滑动杆 (10) 上。
[权利要求 4] 根据权利要求 3所述的折叠升降桌工作站, 其特征在于: 所述变弹力 弹性元件包括前置弹性部件 (11) 和后置弹性部件 (12) ; 前置弹性 部件 (11) 的一端与主滑动端 (42) 连接, 前置弹性部件 (11) 的另 一端与后置弹性部件 (12) 连接固定, 后置弹性部件 (12) 固定在固 定部一 (21) 上, 前置弹性部件 (11) 的弹性系数小于后置弹性部件 (12) 的弹性系数。
[权利要求 5] 根据权利要求 3所述的折叠升降桌工作站, 其特征在于: 所述变弹力 弹性元件为变节距弹簧, 变节距弹簧的一端与主滑动端 (42) 连接, 变节距弹簧的另一端固定在固定部一 (21) 上, 变节距弹簧中靠近主 滑动端 (42) 处的弹性系数小于靠近固定部一 (21) 处的弹性系数。
[权利要求 6] 根据权利要求 1或 2所述的折叠升降桌工作站, 其特征在于: 所述工作 站上支撑脚 (2) 的导轨 (9) 两端分别设有固定片 (23) 和固定板 ( 24) , 所述固定片与固定板之间设有与导轨 (9) 呈平行设置的滑动 仓 (17) , 所述滑动仓 (17) 内设置有变弹力弹性元件; 主滑动端 ( 42) 上还设置有顶片 (16) , 顶片 (16) 位于滑动仓 (17) 内并与变 弹力弹性元件位于相同的径向轴线上, 变弹力弹性元件的一端与固定 片 (23) 连接, 变弹力弹性元件的另一端在压缩吋与顶片 (16) 接触 , 工作站桌面 (1) 位于最高位置吋, 变弹力弹性元件与顶片 (16) 不接触。
[权利要求 7] 根据权利要求 6所述的折叠升降桌工作站, 其特征在于: 所述变弹力 弹性元件包括前置弹性部件 (11) 和后置弹性部件 (12) ; 后置弹性 部件 (12) 的一端与固定片 (23) 连接, 后置弹性部件 (12) 的另一 端与前置弹性部件 (11) 的一端相连, 前置弹性部件 (11) 的另一端 在压缩吋与顶片 (16) 接触, 前置弹性部件 (11) 的弹性系数小于后 置弹性部件 (12) 的弹性系数。
[权利要求 8] 根据权利要求 6所述的折叠升降桌工作站, 其特征在于: 所述变弹力 弹性元件为变节距弹簧, 变节距弹簧中靠近顶片 (16) 处的弹性系数 小于靠近固定片 (23) 处的弹性系数。
[权利要求 9] 根据权利要求 1-8中任一项所述的折叠升降桌工作站, 其特征在于: 所述工作站下支撑脚 (3) 包括底壁 (31) 和至少一个侧壁 (32) ; 所述侧壁 (32) 上设置滑槽 (7) , 所述滑槽 (7) 的滑动方向与导轨 (9) 滑动方向一致; 还包括可由滑槽 (7) 外侧穿过滑槽并与滑槽匹 配并可沿着滑槽滑动的螺栓 (13) , 所述螺栓 (13) 和所述副滑动端 (52) 连接; 所述副滑动端 (52) 连接于弹性部件 (6) 的一端, 所 述弹性部件 (6) 的另一端固定在工作站下支撑脚 (3) 上。
[权利要求 10] 根据权利要求 9所述的折叠升降桌工作站, 其特征在于: 所述主支撑 杆 (4) 的主固定端 (41) 连接工作站下支撑脚 (3) 的侧壁 (32) 外 侧, 副支撑杆 (5) 的副固定端 (51) 连接在工作站下支撑脚 (3) 的 侧壁 (32) 内侧。
[权利要求 11] 根据权利要求 1-8中任一项所述的折叠升降桌工作站, 其特征在于: 所述导轨 (9) 上设置若干卡槽 (91) 或卡齿; 所述工作站上支撑脚 (2) 上设置扳手 (8) , 所述扳手 (8) 还连接有一根卡条, 卡条上 设置与所述导轨 (9) 上的卡槽 (91) 或卡齿相匹配的卡齿或卡槽。
[权利要求 12] 根据权利要求 1-8、 10中任一项所述的折叠升降桌工作站, 其特征在 于: 所述升降装置还包括辅助支撑杆 (18) , 所述辅助支撑杆 (18) 设置在主支撑杆 (4) 和副支撑杆 (5) 交叉位置处, 所述辅助支撑杆 一端铰接于交叉位置处, 辅助支撑杆另一端铰接于工作站上支撑脚 (
[权利要求 13] 根据权利要求 1-8、 10任一项所述的折叠升降桌工作站, 其特征在于 : 所述升降装置为两套, 对称设置在工作站桌面 (1) 下方, 两侧主 滑动端 (42) 之间设置有横杆 (15) , 横杆 (15) 可以通过焊接、 螺 栓连接、 铆接的方式与两侧主滑动端 (42) 连接。
[权利要求 14] 一种弹簧, 所述弹簧应用在如权利要求 5或 8所述的折叠升降桌工作站 , 所述弹簧的制造方法如下:
1) 成型工序, 将弹簧钢成型为变节距弹簧, 其中, 弹簧总长 164-167 mm, 总圈数 33, 弹簧钢丝直径为 2.3mm±0.02mm, 弹簧外圈直径为 1 4- 16mm, 第一节距处总长为 41mm±0.5mm, 有效圈数为 10, 第二节 距在 40mm±0.5mm内的有效圈数为 5 ;
2) 热处理工序, 将成型的变节距弹簧 300度保温 20分钟, 并在空气中 自然冷却至室温;
3) 检测工序, 将热处理后的弹簧压缩至 123mm吋, 弹簧力应为 169N ±10% ; 将热处理后的弹簧压缩至 97mm吋, 弹簧力应为 327N±10<¾;
4) 将检测合格的弹簧进行电镀处理, 防止生锈。
PCT/CN2017/080854 2016-08-15 2017-04-18 折叠升降桌工作站 WO2018032792A1 (zh)

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