GB2589470A - A variable spring assembly - Google Patents

A variable spring assembly Download PDF

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Publication number
GB2589470A
GB2589470A GB2019255.5A GB202019255A GB2589470A GB 2589470 A GB2589470 A GB 2589470A GB 202019255 A GB202019255 A GB 202019255A GB 2589470 A GB2589470 A GB 2589470A
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GB
United Kingdom
Prior art keywords
barrel
side wall
outer side
board
spring assembly
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
GB2019255.5A
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GB202019255D0 (en
Inventor
Chen Wuyi
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Hangzhou Zhikai Digital Technology Co Ltd
Original Assignee
Hangzhou Zhikai Digital Technology Co Ltd
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Publication date
Application filed by Hangzhou Zhikai Digital Technology Co Ltd filed Critical Hangzhou Zhikai Digital Technology Co Ltd
Publication of GB202019255D0 publication Critical patent/GB202019255D0/en
Publication of GB2589470A publication Critical patent/GB2589470A/en
Pending legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
    • F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
    • F16F15/046—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means using combinations of springs of different kinds
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F13/00—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs
    • F16F13/002—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising at least one fluid spring
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F1/00—Springs
    • F16F1/02—Springs 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
    • F16F1/04—Wound springs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F13/00—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs
    • F16F13/005—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a wound spring and a damper, e.g. a friction damper
    • F16F13/007—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a wound spring and a damper, e.g. a friction damper the damper being a fluid damper
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
    • F16F15/023—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using fluid means
    • F16F15/0232—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using fluid means with at least one gas spring
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/02—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only or vacuum
    • F16F9/0209—Telescopic
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/32—Details
    • F16F9/43—Filling or drainage arrangements, e.g. for supply of gas
    • F16F9/435—Filling or drainage arrangements, e.g. for supply of gas via opening in cylinder wall
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/32—Details
    • F16F9/43—Filling or drainage arrangements, e.g. for supply of gas
    • F16F9/437—Drainage arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F2222/00—Special physical effects, e.g. nature of damping effects
    • F16F2222/12—Fluid damping
    • F16F2222/126—Fluid damping using gases
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F2230/00—Purpose; Design features
    • F16F2230/0005—Attachment, e.g. to facilitate mounting onto confer adjustability
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F2230/00—Purpose; Design features
    • F16F2230/0011—Balancing, e.g. counterbalancing to produce static balance
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F2230/00—Purpose; Design features
    • F16F2230/0052—Physically guiding or influencing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F2230/00—Purpose; Design features
    • F16F2230/06—Fluid filling or discharging
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F2230/00—Purpose; Design features
    • F16F2230/18—Control arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F2230/00—Purpose; Design features
    • F16F2230/30—Sealing arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F2232/00—Nature of movement
    • F16F2232/08—Linear
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F2238/00—Type of springs or dampers
    • F16F2238/02—Springs
    • F16F2238/026—Springs wound- or coil-like

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Vibration Prevention Devices (AREA)
  • Sealing Devices (AREA)
  • Magnetically Actuated Valves (AREA)

Abstract

This invention discloses a variable spring assembly, belongs to a field of mechanics, the invention comprises a top panel (1), a bottom panel (2), spring bodies (3) between the top panel (1)and the bottom panel (2), a barrel (4) between two of the spring bodies (3), outlet holes (2a) arranged to penetrate vertically through the bottom panel (2), a guide barrel (5) vertically provided in the barrel, an electromagnet (7) in the guide barrel (5), wherein the electromagnet (7) comprises an outer shell (7a) and a main shaft (7b), a board (10) horizontally arranged in the barrel (5). The variable spring assembly has a relative high buffering precision.

Description

A VARIABLE SPRING ASSEMBLY
TECHNICAL FIELD
[0001] The present invention relates to the technical field of mechanical engineering, in particular to a variable spring assembly.
BACKGROUND OF THE INVENTION
[0002] Spring is a mechanical parts that works with its elasticity, the parts made of elastic materials will deform under the external forces, it will get back into shape after remove the external forces [0003] As a compression spring(application No. :201620912062.4) disclosed by China Patent Database, the existing spring comprises spring bodies, an end surface fixing panel arranged on two end surfaces of the spring bodies, wherein the spring bodies are a pair of cylindrical hollow spirals, and the fixing panel is a disc panel with snap that fixing two of spirals of the spring bodies, and the snap is arranged on outer side of the spring bodies along the direction paralleled to the center axis of the spring bodies.
[0004] The above-stated compression spring can realize a buffer effect through two of the spring bodies However, due to the buffer scale of the spring bodies is unchanged, so the buffer accuracy is poor, which can not meet the requirements under the circumstance of high-precision operation situation.
BRIEF SUMMARY OF THE INVENTION
[0005] The technical problem to be solved by the invention is to provide a variable spring assembly so as to overcome the above-mentioned problems existing in the prior art, the technical problem is how to improve the buffer precision.
[0006] The purpose of the present invention is achieved by the following technical schemes: a variable spring assembly comprises a top panel and a bottom panel that provided to face each other, wherein spring bodies are vertically arranged between the top panel and the bottom panel, wherein a barrel is vertically arranged between two of the spring bodies, wherein a bottom end of the barrel is sealed and fixedly connected with the bottom panel, wherein outlet holes are arranged to penetrate vertically through the bottom panel, and the outlet holes are communicated with an inner cavity of the barrel, and a guide barrel is vertically provided in the barrel, wherein a top and a bottom of the guide barrel are on an open or dosed state respectively, wherein a top end of the barrel stretches out of the barrel and fixedly connected with the top panel, and an outer side wall of the guide barrel and an inner side wall of the barrel are forming a sealing space; an electromagnet is arranged in the guide barrel, and the electromagnet comprises an outer shell and a main shaft, wherein a lower end of the outer shell protrudes from the through hole and a sealing space is formed between an outer side wall of the outer shell and an inner side wall of the guide barrel, and the lower end of the outer shell is fixedly connected with the barrel through brackets, and a board is horizontally arranged in the barrel, wherein a diameter of the board is less than an inner diameter of the barrel, and the board is fixedly connected with an lower end of the main shaft, and the electromagnet can drive the board to abut against the bottom panel and seal the outlet holes, and an inlet hole is arranged to penetrate through the barrel wall of the barrel and the inlet hole is located between the board and the guide barrel, and a gas nozzle communicated with the inlet hole is fixedly arranged on the outer side wall of the barrel.
[0007] The usage of the present invention is as follows: when the electromagnet in the de-energized position, the board abuts against the bottom panel and seal the outlet holes under an action of the electromagnet, and compressed gas will continue to be filled into the barrel through the gas nozzle until the set point is reached; when in operation, under an action of the external force, the upper panel overcomes the elasticity of the spring bodies and the pressure of the compressed gas to realize a buffering; when the compressed gas in the barrel is no longer performing the buffering function, the electromagnet is energized to drive the main shaft to retract, and then the board is driven to move upward to open the outlet holes, thereby the air pressure in the barrel will keep balance with the external environment, which can avoid an obstruction of the guide barrel to slide.
[0008] Among the above-stated variable spring assembly, wherein the outer side wall of the guide barrel and the inner side wall of the barrel are on cylindrical surface and are mutually matching with each other.
[0009] Among the above-stated variable spring assembly, wherein a first annular groove is defined on the outer side wall of the guide barrel, wherein a first sealing ring is defined in the first annular groove, wherein an outer side wall of the first sealing ring is abutted against the inner side wall of the barrel, and under the action of the first sealing ring, whereby effectively improves the sealing effect formed between the guide barrel and the barrel.
[0010] Among the above-stated variable spring assembly, wherein a second annular groove is defined on the outer side wall of the outer shell, wherein a second sealing ring is arranged in the second annular groove and an outer side wall of the second sealing ring is abutted against the inner side wall of the barrel [0011] Among the above-stated variable spring assembly, wherein a third annular groove is defined on a bottom wall of the board, wherein a annular gasket is fixedly disposed in the third annular groove, wherein an upper end surface of the annular gasket is abutted against a bottom wall of the third annular groove, and when the board presses against the bottom panel, a lower end surface of the annular gasket will press tightly on the bottom panel.
[0012] Among the above-stated variable spring assembly, wherein an tubular intake valve is arranged on an outer side wall of the barrel and can be formed integrally with the barrel, wherein the inlet hole is communicated with the intake valve, and the gas nozzle comprises a tubular outlet, and the outlet is in threaded connection within the intake valve.
[0013] Compared with the existing technology, the advantages of the variable spring assembly in this invention are listed as follows: [0014] 1. A buffering assembly is composed of the barrel, the board, the electromagnet, the gas nozzle, the outlet holes and the guide barrel, such arrangement can precisely change the buffering effect of a whole spring assembly by adjusting the air pressure in the barrel, which can not only improve the buffering precision, but also make this spring assembly meet every kinds of working conditions for improving a practicability.
[0015] 2. The guide barrel is not only compressing the compressed gas in a compression barrel to realize the buffering, but also perform a better buffering effect to a whole buffering operation, which has a double effect; furthermore, this variable spring assembly is simple in structure and convenient to install.
BRIEF DESCRIPTION OF THE DRAWINGS
[0016] FIG.1 is the schematic structural diagram depicting a variable spring assembly when electromagnet de-energizes in this invention.
[0017] FIG.2 is the enlarged structural diagram of "A" in FIG.].
[0018] FIG.3 is the schematic structural diagram depicting a variable spring assembly when electromagnet energizes in this invention.
[0019] In the figures, a top panel 1, a bottom panel 2, outlet holes 2a, spring bodies 3, a barrel 4, an inlet hole 4a, a guide barrel 5, a first sealing ring 6, an electromagnet 7, an outer shell 7a, a main shaft 7b, a second sealing ring 8, brackets 9, a board 10, an annular gasket 11, a gas nozzle 12.
DETAILED DESCRIPTION OF THE INVENTION
[0020] The technical scheme of the invention is further described by the embodiments of the invention not limiting the scope and spirit of the invention in combination with accompanying figures.
[0021] Referring to FIG. 1, a variable spring assembly comprises a top panel 1 and a bottom panel 2 that provided to face each other, spring bodies 3 are vertically arranged between the top panel 1 and the bottom panel 2, wherein the spring bodies 3 have two and the positions are set side by side; whereby in this embodiment, two ends of the preferred spring bodies 3 are fixedly and respectively connected with the top panel 1 and the bottom panel 2 by welding.
[0022] Specifically, a barrel 4 is vertically arranged between two of the spring bodies 3, wherein a bottom end of the barrel 4 is sealed and fixedly connected with the bottom panel 2, and the preferred barrel 4 and the bottom panel 2 are sealed and fixedly connected with each other by welding, wherein outlet holes 2a are arranged to penetrate vertically through the bottom panel 2, and the outlet holes 2a are facing to and communicated with an inner cavity of the barrel 4; in this embodiment, the preferred outlet holes 2a have two, and a guide barrel 5 is vertically provided in the barrel 4, wherein a top and a bottom of the guide barrel 5 are on an open or closed state respectively, wherein a top end of the barrel 5 stretches out of the barrel 4 and fixedly connected with the top panel 1, and an outer side wall of the guide barrel 5 and an inner side wall of the barrel 4 are forming a sealing space; in this embodiment, the outer side wall of the guide bane! 5 and the inner side wall of the barrel 4 are on cylindrical surface and are mutually matching with each other; a first annular groove is defined on the outer side wall of the guide barrel 5, wherein a first sealing ring 6 is defined in the first annular groove, wherein an outer side wall of the first sealing ring 6 is abutted against the inner side wall of the barrel 4, whereby effectively improves the sealing effect formed between the guide barrel 5 and the ban-el 4 [0023] Refen-ing to FIG. I, an electromagnet 7 is arranged in the guide barrel 5, wherein the electromagnet 7 is an existing product which can be bought in markets, and the electromagnet 7 comprises an outer shell 7a and a main shaft 7b, wherein a lower end of the outer shell 7a protrudes from the through hole and a sealing space is formed between an outer side wall of the outer shell 7a and an inner side wall of the guide barrel 5; in this embodiment, a second annular groove is defined on the outer side wall of the outer shell 7a, wherein a second sealing ring 8 is arranged in the second annular groove and an outer side wall of the second sealing rings is abutted against the inner side wall of the barrel 5, and the lower end of the outer shell 7a is fixedly connected with the barrel 4 through brackets 9; specifically, the brackets 9 are on L-shaped, wherein one end of each of the brackets 9 is fixedly connected with the barrel 4 and another end of each of the brackets 9 is fixedly connected with the outer shell 7a, and two of the preferred brackets 9 are distributed in circumferential direction along the barrel 4; a board 10 is horizontally arranged in the barrel 4, wherein a diameter of the board 10 is less than an inner diameter of the barrel 4, and the board 10 is fixedly connected with an lower end of the main shaft 7b, and the electromagnet 7 can drive the board 10 to abut against the bottom panel 2 and seal the outlet holes 2a; furthermore, a third annular groove is defined on a bottom wall of the board 10, wherein a annular gasket 11 is fixedly disposed in the third annular groove, wherein an upper end surface of the annular gasket 11 is abutted against a bottom wall of the third annular groove, and when the board 10 presses against the bottom panel 2, a lower end surface of the annular gasket ii will press tightly on the bottom panel 2 to enhance the effect of sealing the outlet holes 2a.
[0024] Referring to FIG 1 and FIG 2, an inlet hole 4a is arranged to penetrate through the barrel wall of the barrel 4 and the inlet hole 4a is located between the board 10 and the guide barrel 5, and a gas nozzle 12 communicated with the inlet hole 4a is fixedly arranged on the outer side wall of the barrel 4; for a further explanation, an tubular intake valve 4b is arranged on an outer side wall of the barrel 4 and can be formed integrally with the barrel 4, wherein the inlet hole 4a is communicated with the intake valve 4b, and the gas nozzle 12 comprises a tubular outlet, and the outlet is in threaded connection within the intake valve 4b.
[0025] The usage of the present invention is as follows: as is shown in FIG. 1, when the electromagnet 7 in the de-energized position, the board 10 abuts against the bottom panel 2 and seal the outlet holes 2a under an action of the electromagnet 7, and compressed gas will continue to be filled into the barrel 4 through the gas nozzle 12 until the set point is reached; when in operation, under an action of the external fore, the upper panel 1 overcomes the elasticity of the spring bodies 3 and the pressure of the compressed gas to realize a buffering; as is shown in FIG. 3, when the compressed gas in the barrel 4 is no longer performing the buffering function, the electromagnet 7 is energized to drive the main shaft 7b to retract, and then the board 10 is driven to move upward to open the outlet holes 2a, thereby the air pressure in the barrel 4 will keep balance with the external environment, which can avoid an obstruction of the guide barrel 5 to slide.
[0026] The specific embodiments stated herein are only given to illustrate the spirit of the invention. It will be understood by those skilled in the relevant arts that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined in the appended claims.

Claims (6)

  1. Claims 1. A variable spring assembly, comprising: a top panel and a bottom panel that provided to face each other, wherein spring bodies are vertically arranged between the top panel and the bottom panel, wherein a barrel is vertically arranged between two of the spring bodies, wherein a bottom end of the barrel is sealed and fixedly connected with the bottom panel, wherein outlet holes are arranged to penetrate vertically through the bottom panel, and the outlet holes are communicated with an inner cavity of the barrel, and a guide barrel is vertically provided in the barrel, wherein a top and a bottom of the guide barrel are on an open or closed state respectively, wherein a top end of the barrel stretches out of the barrel and fixedly connected with the top panel, and an outer side wall of the guide barrel and an inner side wall of the bane] are forming a sealing space; an electromagnet arranged in the guide barrel, and the electromagnet comprises an outer shell and a main shaft, wherein a lower end of the outer shell protrudes from the through hole and a sealing space is formed between an outer side wall of the outer shell and an inner side wall of the guide barrel, and the lower end of the outer shell is fixedly connected with the barrel through brackets, and a board is horizontally arranged in the barrel, wherein a diameter of the board is less than an inner diameter of the barrel, and the board is fixedly connected with an lower end of the main shaft, and the electromagnet can drive the board to abut against the bottom panel and seal the outlet holes; an inlet hole arranged to penetrate through the barrel wall of the barrel and the inlet hole is located between the board and the guide barrel, a gas nozzle which is communicated with the inlet hole fixedly arranged on the outer side wall of the barrel.
  2. 2. The variable spring assembly defined in Claim 1, wherein the outer side wall of the guide barrel and the inner side wall of the barrel are on cylindrical surface and are mutually matching with each other.
  3. 3. The variable spring assembly defined in Claim 2, wherein a first annular groove is defined on the outer side wall of the guide barrel, wherein a first sealing ring is defined in the first annular groove, wherein an outer side wall of the first sealing ring is abutted against the inner side wall of the barrel.
  4. 4. The variable spring assembly defined in Claim 1 or 2 or 3, wherein a second annular groove is defined on the outer side wall of the outer shell, wherein a second sealing ring is arranged in the second annular groove and an outer side wall of the second sealing ring is abutted against the inner side wall of the barrel.
  5. 5. The variable spring assembly defined in Claim 1 or 2 or 3, wherein a third annular groove is defined on a bottom wall of the board, wherein a annular gasket is fixedly disposed in the third annular groove, wherein an upper end surface of the annular gasket is abutted against a bottom wall of the third annular groove, whereby when the board presses against the bottom panel, a lower end surface of the annular gasket will press tightly on the bottom panel
  6. 6. The variable spring assembly defined in Claim 1, wherein an tubular intake valve is arranged on an outer side wall of the barrel and can be formed integrally with the barrel, wherein the inlet hole is communicated with the intake valve, and the gas nozzle comprises a tubular outlet, and the outlet is in threaded connection within the intake valve.
GB2019255.5A 2019-12-05 2020-12-08 A variable spring assembly Pending GB2589470A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201911230943.2A CN110925344B (en) 2019-12-05 2019-12-05 Variable spring assembly
JP2020125976A JP6810838B1 (en) 2019-12-05 2020-07-24 Spring component with variable elastic modulus

Publications (2)

Publication Number Publication Date
GB202019255D0 GB202019255D0 (en) 2021-01-20
GB2589470A true GB2589470A (en) 2021-06-02

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CN110925344B (en) * 2019-12-05 2021-07-02 杭州富阳和翔模具有限公司 Variable spring assembly

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