CN111828431A - Oil-gas cylinder with valve switching device - Google Patents

Oil-gas cylinder with valve switching device Download PDF

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Publication number
CN111828431A
CN111828431A CN202010604918.2A CN202010604918A CN111828431A CN 111828431 A CN111828431 A CN 111828431A CN 202010604918 A CN202010604918 A CN 202010604918A CN 111828431 A CN111828431 A CN 111828431A
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CN
China
Prior art keywords
driven
rod
driving
valve
oil
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
CN202010604918.2A
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Chinese (zh)
Inventor
陈敏
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Individual
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Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CN202010604918.2A priority Critical patent/CN111828431A/en
Publication of CN111828431A publication Critical patent/CN111828431A/en
Pending legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/08—Characterised by the construction of the motor unit
    • F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
    • F15B15/1423—Component parts; Constructional details
    • F15B15/1447—Pistons; Piston to piston rod assemblies
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B13/00—Details of servomotor systems ; Valves for servomotor systems
    • F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/08—Characterised by the construction of the motor unit
    • F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
    • F15B15/1423—Component parts; Constructional details
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/08—Characterised by the construction of the motor unit
    • F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
    • F15B15/1423—Component parts; Constructional details
    • F15B15/1428—Cylinders
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/08—Characterised by the construction of the motor unit
    • F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
    • F15B15/1423—Component parts; Constructional details
    • F15B15/1457—Piston rods

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanically-Actuated Valves (AREA)

Abstract

An oil-gas cylinder provided with a valve switching device comprises a cylinder barrel, an oil seal, a piston, a valve seat, a guide sealing assembly, a piston rod and a driving rod, and further comprises the valve switching device; the valve switching device comprises a base, a transmission part and a driven part, wherein one end of a driving rod part of the transmission part penetrates through the base sleeve to extend out, the base sleeve supports the transmission seat, and the support rod is in sliding fit with the axial guide groove; the driven rod part of the driving part extends into the driving cavity of the driven part, the supporting rod is embedded with the radial groove, the left-hand surface of the end of the driving part is matched with the left-hand surface of the driven part, and the left-hand surface of the driving part is matched with the left-hand surface of the driven end of the driven part; the base is fixed on a fixed seat in the driving rod hole, and the driven part is attached to the rod body part of the air valve; the driving piece drives the driven piece to rotate and move along the axis, and the upper end of the supporting rod is matched with the driven tooth groove; the head of the valve is moved away from the valve seat. The valve switching device can switch the locking or the unlocking of the valve by operating the driving rod, and the operation is convenient.

Description

Oil-gas cylinder with valve switching device
Technical Field
The invention relates to an oil and gas cylinder.
Background
In the prior art, an oil-gas cylinder comprises a cylinder barrel with an opening at one end, an oil seal, a piston, a valve seat, a guide sealing assembly arranged at the opening end of the cylinder barrel, a piston rod and a driving rod, wherein the piston is provided with a guide part, an oil inlet cavity part and a valve seat cavity part along an axis, and an oil guide hole arranged on a partition plate between the valve seat part and the oil inlet cavity part; the valve comprises a head cover part, a neck part and a rod body part, and the piston rod is provided with a driving rod hole along the axis; the head cover part is matched with a valve seat arranged in a valve seat cavity part, a gap is arranged between the neck part and the oil guide hole and is in sliding fit, and the rod body part and the guide part are in gas-liquid sealing and sliding fit; the piston rod is connected with the piston. There are problems in that: the valve can not be locked, and the use is inconvenient.
Disclosure of Invention
The purpose of the invention is: the oil gas cylinder provided with the valve switching device can lock the valve and is convenient to use.
The invention is realized by the following steps: an oil-gas cylinder with a valve switching device comprises a cylinder barrel with an opening at one end, an oil seal, a piston, a valve seat, a guide sealing assembly arranged at the opening end of the cylinder barrel, a piston rod and a driving rod, wherein the piston is provided with a guide part, an oil inlet cavity part, a valve seat cavity part and an oil guide hole arranged on a partition plate between the valve seat part and the oil inlet cavity part along an axis; the valve comprises a head cover part, a neck part and a rod body part, and the piston rod is provided with a driving rod hole along the axis; the head cover part is matched with a valve seat arranged in a valve seat cavity part, a gap is arranged between the neck part and the oil guide hole and is in sliding fit, and the rod body part and the guide part are in gas-liquid sealing and sliding fit; the piston rod is connected with the piston; it is characterized in that: a fixed seat is arranged in the driving rod hole;
the device also comprises an air valve conversion device;
the valve switching device comprises a base, a transmission part and a driven part,
the base comprises a base sleeve and at least two support rods arranged at one end of the base sleeve, and the end parts of the support rods are provided with a left-handed large inclined plane and a right-handed small inclined plane;
the transmission part comprises a driving rod part, a transmission seat and a driven rod part, at least two axial guide grooves are arranged on the outer circumferential surface of the transmission seat, tooth grooves formed by a left rotating surface and a right rotating surface adjacent to one axial guide groove are arranged on the end surface between two adjacent axial guide grooves, and end left rotating surfaces adjacent to the end part of the right rotating surface and the other axial guide groove are also arranged;
the driven part comprises a driving cavity with an opening at one end and at least two radial grooves arranged on the wall of the driving cavity, the opening end of the driving cavity between every two adjacent radial grooves is provided with a driven tooth socket formed by a driven left-handed surface and a driven right-handed surface which are adjacent to one radial groove, and a driven end left-handed surface which is adjacent to the other radial groove and is adjacent to the driven left-handed surface is also arranged;
one end of the driving rod part of the driving part penetrates through the base sleeve to extend out, the base sleeve supports the driving seat, and the supporting rod is in sliding fit with the axial guide groove; the driven rod part of the driving part extends into the driving cavity of the driven part, the supporting rod is embedded with the radial groove, the left-hand surface of the end of the driving part is matched with the left-hand surface of the driven part, and the left-hand surface of the driving part is matched with the left-hand surface of the driven end of the driven part; the base is fixed on a fixed seat in the driving rod hole, and the driven part is attached to the rod body part of the air valve; the driving part drives the driven part to rotate and move along the axis, and the upper end of the supporting rod is matched with the driven tooth groove.
The oil gas cylinder provided with the valve switching device is characterized in that: the driving rod hole is internally provided with a step which is positioned at the opening end of the driving rod hole;
also comprises an intermediate piece, the intermediate piece comprises a rod part and a head part,
the head is matched with the step, and the driving rod is matched with the rod part of the middle part.
The oil gas cylinder provided with the valve switching device is characterized in that: the driving rod is detachable.
The oil gas cylinder provided with the valve switching device has the advantages that the driving rod is operated, the valve switching device can switch the locking or the unlocking of the valve, and the operation is convenient.
Drawings
Fig. 1 is a cross-sectional view of the present invention.
Fig. 2 is a partially enlarged view of fig. 1.
Fig. 3 is one of the partially exploded perspective views of the present invention.
Fig. 4 is a partial exploded perspective view of the present invention.
Fig. 5 is an exploded perspective view of the valve shifting apparatus of the present invention.
Fig. 6 is a second exploded perspective view of the valve shifting apparatus of the present invention.
Fig. 7 is a perspective view of the valve switching device of the present invention.
Fig. 8 is a perspective view showing a locked state of the valve switching device of the present invention.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
As shown in fig. 1, an oil gas cylinder with a valve switching device comprises a cylinder barrel 1 with an opening at one end, an oil seal 2, a piston 3, a valve 4, a valve seat 5, a guide sealing assembly 6 arranged at the opening end of the cylinder barrel, a piston rod 7 and a drive rod 8, wherein the piston 3 is provided with a guide part 31, an oil inlet chamber part 32, a valve seat chamber part 33 and an oil guide hole 34 arranged on a partition plate between the valve seat part and the oil inlet chamber part along the axial line, and the oil inlet chamber part 32 is provided with an oil inlet hole 341; the valve 4 comprises a head cover part 41, a neck part 42 and a rod body part 43, and the piston rod 7 is provided with a driving rod hole 71 along the axis; the oil seal 2 is arranged at the closed end of the cylinder barrel 1, the oil seal 2 and the closed end of the cylinder barrel 1 form an air cavity, the piston 3 divides a cavity between the oil seal 2 and the open end of the cylinder barrel 1 into a rod cavity 1A and a rodless cavity 1B, and hydraulic oil is stored in the rod cavity 1A and the rodless cavity 1B; the valve seat 5 is provided in the valve seat chamber portion 33,
the head cover portion 41 of the valve 4 is fitted to the valve seat 5 provided in the valve seat chamber portion 33, the neck portion 42 is fitted to the oil guide hole 34 with a gap therebetween in a sliding manner, and the stem portion 43 is gas-liquid sealed and fitted to the guide portion 31 in a sliding manner; the piston rod 7 is connected with the piston 3, and the rod body part 43 of the valve 4 extends into the driving rod hole 71 of the piston rod 7; the piston rod 7 passes through a guide hole of the guide sealing assembly 6 and extends out of the cylinder barrel 1;
a fixed seat 72 is arranged in the driving rod hole 71;
the device also comprises an air valve conversion device;
the valve switching device comprises a base 9, a transmission piece 10 and a driven piece part 11,
the base 9 comprises a base sleeve 91 and two support rods 92 arranged at one end of the base sleeve, and the end parts of the support rods 92 are provided with a left-handed large inclined plane 921 and a right-handed small inclined plane 922;
the transmission member 10 comprises a driving rod part 101, a transmission seat 102 and a driven rod part 103, wherein two axial guide grooves 1021 uniformly distributed around the outer circumferential surface are arranged on the outer circumferential surface of the transmission seat 102, a tooth space formed by a left-handed surface 1022 and a right-handed surface 1023 adjacent to one axial guide groove 1021 is arranged on the end surface between two adjacent axial guide grooves 1021, and an end left-handed surface 1024 adjacent to the end part of the right-handed surface 1023 and the other axial guide groove 1021 is also arranged;
the driven part 11 comprises a driving cavity with an opening at one end and two radial grooves arranged on the wall of the driving cavity, the opening end of the driving cavity between two adjacent radial grooves 111 of 111 is provided with a driven tooth socket formed by a driven left-handed surface 112 and a driven right-handed surface 113 which are adjacent to one radial groove 111, and is also provided with a driven end left-handed surface 114 which is adjacent to the other radial groove 111 and is adjacent to the driven left-handed surface;
one end of the driving rod part 101 of the driving member 10 extends through the base sleeve 91, the base sleeve 91 supports the driving seat 102, and the supporting rod 92 is in sliding fit with the axial guide groove 1021; the driven rod part 103 of the transmission piece 10 extends into a driving cavity of the driven part 11, the supporting rod 91 is embedded with the radial groove 111, the end left-hand surface 1024 of the transmission piece 10 is matched with the left-hand surface 112 of the driven part 11, and the left-hand surface 1022 of the transmission piece 10 is matched with the driven end left-hand surface 114 of the driven part 11; the base 9 is fixed on a fixed seat 71 in a driving rod hole 71, and the driven part 11 is attached to the rod body part 43 of the valve 4; the driving piece 10 drives the driven piece 11 to rotate and move along the axis, and the upper end of the supporting rod 91 is matched with the driven tooth groove; the head cover portion 41 of the valve 4 is separated from the valve seat 5, and the rod chamber 1A and the rodless chamber 1B communicate.
When the valve locking device is used, as shown in the states of fig. 1, 2 and 7, which are in a valve locking closed state, the driving rod 8 is pressed, the driving rod 8 acts on the driving rod part 101 of the transmission piece 10, the transmission piece 10 moves relative to the base 9, and the supporting rod 92 is in sliding fit with the axial guide groove 111; then, when the supporting rod 92 is located below the radial groove 111 or when the supporting rod 92 leaves the radial groove 111, the end left-hand face 1024 of the transmission seat 102 is in driving engagement with the left-hand face 112 of the driven member 11, and the driven member 11 rotates counterclockwise as viewed from the top of fig. 7; the upper end of the support rod 92 is fitted into the driven gullet, as shown in fig. 8; the follower 11 drives the rod part 43 of the valve 4, and the head cover part 41 leaves the valve seat 5 to be in a valve opening state; the rod cavity 1A is communicated with the rodless cavity 1B, hydraulic oil in the rodless cavity 1A enters the rod cavity 1B through a gap between the head cover part 41 and the valve seat 5, a gap between the oil guide hole 34 and the neck part 42, the oil inlet cavity part 32 and the oil guide hole 34; the piston 3 moves in the direction of the rodless chamber 1B, and the piston 3 retracts into the cylinder 1.
In the state of fig. 8, when the driving lever 8 is pressed again, the driving lever 8 is engaged with the driving lever portion 101 of the driving lever 10, the end left-hand face 1024 acts on the driven end left-hand face 114 of the driven member 11, and when the supporting lever 92 is separated from the driven tooth groove, the driven member 11 rotates counterclockwise as viewed from the top in fig. 8; then the left-handed large inclined plane 921 on the support rod 92 is in sliding fit with the left-handed plane 114 at the driven end of the driven piece until the support rod 92 is placed in the axial guide groove 11; the valve 4 is reset, and the head cover part 41 of the valve 4 is attached to the valve seat 5; the piston rod 7 extends out of the cylinder 1.
As a further improvement of the invention: the driving rod hole 71 is internally provided with a step 73, and the step 73 is positioned at the opening end of the driving rod hole 71;
and further comprises an intermediate member 12, which comprises a shank 121 and a head 122,
head 122 cooperates with step 73, and driving rod 8 cooperates with rod 121 of intermediate piece 12; the drive rod 8 is detachable.
What has been described above is merely a preferred embodiment of the present invention. It should be noted that a person skilled in the art could make several modifications and variations without departing from the principle of the present invention, which should also be regarded as the protection scope of the present invention.

Claims (3)

1. An oil-gas cylinder with a valve switching device comprises a cylinder barrel with an opening at one end, an oil seal, a piston, a valve seat, a guide sealing assembly arranged at the opening end of the cylinder barrel, a piston rod and a driving rod, wherein the piston is provided with a guide part, an oil inlet cavity part, a valve seat cavity part and an oil guide hole arranged on a partition plate between the valve seat part and the oil inlet cavity part along an axis; the valve comprises a head cover part, a neck part and a rod body part, and the piston rod is provided with a driving rod hole along the axis; the head cover part is matched with a valve seat arranged in a valve seat cavity part, a gap is arranged between the neck part and the oil guide hole and is in sliding fit, and the rod body part and the guide part are in gas-liquid sealing and sliding fit; the piston rod is connected with the piston; the method is characterized in that: a fixed seat is arranged in the driving rod hole;
the device also comprises an air valve conversion device;
the valve switching device comprises a base, a transmission part and a driven part,
the base comprises a base sleeve and at least two support rods arranged at one end of the base sleeve, and the end parts of the support rods are provided with a left-handed large inclined plane and a right-handed small inclined plane;
the transmission part comprises a driving rod part, a transmission seat and a driven rod part, at least two axial guide grooves are arranged on the outer circumferential surface of the transmission seat, tooth grooves formed by a left rotating surface and a right rotating surface adjacent to one axial guide groove are arranged on the end surface between two adjacent axial guide grooves, and end left rotating surfaces adjacent to the end part of the right rotating surface and the other axial guide groove are also arranged;
the driven part comprises a driving cavity with an opening at one end and at least two radial grooves arranged on the wall of the driving cavity, the opening end of the driving cavity between every two adjacent radial grooves is provided with a driven tooth socket formed by a driven left-handed surface and a driven right-handed surface which are adjacent to one radial groove, and a driven end left-handed surface which is adjacent to the other radial groove and is adjacent to the driven left-handed surface is also arranged;
one end of the driving rod part of the driving part penetrates through the base sleeve to extend out, the base sleeve supports the driving seat, and the supporting rod is in sliding fit with the axial guide groove; the driven rod part of the driving part extends into the driving cavity of the driven part, the supporting rod is embedded with the radial groove, the left-hand surface of the end of the driving part is matched with the left-hand surface of the driven part, and the left-hand surface of the driving part is matched with the left-hand surface of the driven end of the driven part; the base is fixed on a fixed seat in the driving rod hole, and the driven part is attached to the rod body part of the air valve; the driving piece drives the driven piece to rotate and move along the axis, and the upper end of the supporting rod is matched with the driven tooth groove; the head of the valve is moved away from the valve seat.
2. An oil and gas cylinder provided with a valve change device according to claim 1, characterized in that: the driving rod hole is internally provided with a step which is positioned at the opening end of the driving rod hole;
also comprises an intermediate piece, the intermediate piece comprises a rod part and a head part,
the head is matched with the step, and the driving rod is matched with the rod part of the middle part.
3. An oil and gas cylinder provided with a valve change device according to claim 1 or 2, characterized in that: the driving rod is detachable.
CN202010604918.2A 2020-06-29 2020-06-29 Oil-gas cylinder with valve switching device Pending CN111828431A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010604918.2A CN111828431A (en) 2020-06-29 2020-06-29 Oil-gas cylinder with valve switching device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010604918.2A CN111828431A (en) 2020-06-29 2020-06-29 Oil-gas cylinder with valve switching device

Publications (1)

Publication Number Publication Date
CN111828431A true CN111828431A (en) 2020-10-27

Family

ID=72898381

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010604918.2A Pending CN111828431A (en) 2020-06-29 2020-06-29 Oil-gas cylinder with valve switching device

Country Status (1)

Country Link
CN (1) CN111828431A (en)

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