CN111120455B - Quick inserting and time-delay separating device - Google Patents
Quick inserting and time-delay separating device Download PDFInfo
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- CN111120455B CN111120455B CN201911344196.5A CN201911344196A CN111120455B CN 111120455 B CN111120455 B CN 111120455B CN 201911344196 A CN201911344196 A CN 201911344196A CN 111120455 B CN111120455 B CN 111120455B
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- piston rod
- sleeve
- shell
- accommodating cavity
- head
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- 238000007789 sealing Methods 0.000 claims abstract description 18
- 238000013016 damping Methods 0.000 claims abstract description 17
- 238000000926 separation method Methods 0.000 claims abstract description 8
- 238000003780 insertion Methods 0.000 claims abstract description 6
- 230000037431 insertion Effects 0.000 claims abstract description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 20
- 239000010959 steel Substances 0.000 claims description 20
- 239000012530 fluid Substances 0.000 claims description 16
- 210000001503 joint Anatomy 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 230000006835 compression Effects 0.000 abstract description 8
- 238000007906 compression Methods 0.000 abstract description 8
- 230000003111 delayed effect Effects 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 239000007788 liquid Substances 0.000 abstract 1
- 230000009471 action Effects 0.000 description 11
- 238000013461 design Methods 0.000 description 10
- 238000000034 method Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 8
- 238000010586 diagram Methods 0.000 description 6
- 230000007246 mechanism Effects 0.000 description 5
- 239000003990 capacitor Substances 0.000 description 3
- 238000004146 energy storage Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 3
- 230000004308 accommodation Effects 0.000 description 2
- 229920001821 foam rubber Polymers 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000004806 packaging method and process Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000000087 stabilizing effect Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
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- 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
- F15B15/20—Other details, e.g. assembly with regulating devices
- F15B15/22—Other details, e.g. assembly with regulating devices for accelerating or decelerating the stroke
-
- 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
- F15B15/20—Other details, e.g. assembly with regulating devices
- F15B15/26—Locking mechanisms
- F15B15/261—Locking mechanisms using positive interengagement, e.g. balls and grooves, for locking in the end positions
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fluid-Damping Devices (AREA)
Abstract
The invention discloses a quick insertion and delay separation device, which comprises a shell, a piston rod, a sleeve, a first elastic piece and a second elastic piece, wherein the first elastic piece is connected with the piston rod; the piston rod head and the shell head form a sealing end, the piston rod tail is provided with a limiting part, a first accommodating cavity and a second accommodating cavity are respectively formed between the limiting part and the shell tail and between the limiting part and the shell head, a first elastic piece and a second elastic piece which are deformed axially are respectively arranged in the first accommodating cavity and the second accommodating cavity, one end of the second elastic piece is abutted to a sleeve coaxial with the piston rod, radial gaps are formed between the sleeve and the piston rod and between the sleeve and the cavity, and the end of the sleeve can be abutted to the limiting part for sealing or separating; when the piston rod moves along the axial direction, damping liquid can flow between the first accommodating cavity and the second accommodating cavity. The invention has the beneficial effects that: the device can achieve rapid compression and slow extension, can reduce compression time, can achieve the effect of delayed execution, and has the advantages of simple structure, low cost and reliable technology.
Description
Technical Field
The invention relates to an actuating mechanism, in particular to a quick insertion and delay separation device.
Background
The electronic delay trigger is widely applied to the automation industry and is a delay execution component. Although the electronic delay trigger is mature and widely applied, one fatal disadvantage is that a complete execution device can be realized only by matching a power supply system and an electric executing mechanism, and the situation that the power supply and the electric executing mechanism cannot be provided in the actual working condition has a certain limitation.
The application number is as follows: 201120453349.2 discloses a small-sized low-power-consumption electronic delayer, which is characterized by comprising a packaging metal shell, wherein a power supply processing circuit is arranged in the packaging metal shell and is connected with a programmable frequency division timing circuit, and the programmable frequency division timing circuit is connected with an output driving circuit. The power supply processing circuit comprises a resistor (R3) connected with a capacitor (C2) and a voltage stabilizing tube (Dl) in parallel in series, the resistor (R3) is connected with one end of a power supply (VCC), and one ends of the capacitor (C2) and the voltage stabilizing tube (Dl) in parallel are grounded. Therefore, even small-sized and low-power-consumption electronic time delays still need a series of electric elements such as resistors, capacitors and the like, have quite high cost, are limited by power supplies, and cannot work without power supply supports.
The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person of ordinary skill in the art.
Disclosure of Invention
The technical problems to be solved by the invention are as follows: how to solve the problems of dependence on power supply and high cost of the existing electronic delay equipment.
The invention solves the technical problems by the following technical means:
A quick insertion and delay separation device comprises a shell body with a cavity along the axial direction, a piston rod which is movably matched with the cavity along the axial direction and the head of which extends outside the shell body, and a sleeve which is coaxial with the piston rod; the sleeve is arranged in the shell, the head part of the piston rod and the head part of the shell form a sealing end, the tail part of the piston rod is provided with a limiting part limited at the end part of the sleeve, the end part of the sleeve can be in butt joint with the limiting part for sealing or separation, the inner wall of the sleeve is provided with a radial gap with the piston rod, a radial gap is arranged between the outer wall of the sleeve and the inner wall of the shell, the limiting part and the tail part of the shell form a first accommodating cavity, the sleeve and the head part of the shell form a second accommodating cavity, and a first elastic part and a second elastic part which can axially deform along the piston rod are respectively arranged in the first accommodating cavity and the second accommodating cavity; when the piston rod moves along the axial direction, damping fluid can flow between the first accommodating cavity and the second accommodating cavity;
the piston rod is characterized by further comprising an elastic pad, wherein the elastic pad is arranged on the inner wall of the shell and is positioned at the tail part of the piston rod.
After the piston rod is rapidly pressed in under the action of external force, the instantaneous pressure difference of the first accommodating cavity and the second accommodating cavity (the first accommodating cavity is larger than the second accommodating cavity) and the resistance of the damping fluid enable the limiting part of the piston rod to be separated from the sleeve to form a gap, the process simultaneously compresses the first elastic piece, the damping fluid flows into the second accommodating cavity from the first accommodating cavity through the gap and the gap between the sleeve and the inner wall of the shell, and the damping fluid flows fast, namely the piston rod is pressed in fast; when the piston rod is pressed in place and then is kept, the sleeve is pushed to move left to be attached to the piston rod limiting part under the action of the second elastic piece, the gap disappears, and only the gap between the sleeve and the inner wall of the shell is left as a passage; after the external force of the piston rod is pressed in, the first elastic piece pushes the piston rod to extend out, the sleeve is always attached to the piston rod under the action of the instantaneous pressure difference of the first accommodating cavity and the second accommodating cavity (the first accommodating cavity is smaller than the second accommodating cavity) and the second elastic piece, and the damping fluid flows slowly, namely the piston rod is slowly withdrawn, so that the quick compression and the slow extension are realized, the compression time can be reduced, and the delayed execution effect can be realized; the invention adopts passive design, the action process is driven by mechanical energy storage, the structure is simple, the cost is low, and the technology is reliable; can be widely applied to the low-cost automation industry.
Preferably, a bearing is also included, the bearing being mounted on the piston rod between the sleeve and the housing head. The bearing supports the piston rod, so that accurate axial sliding of the piston rod is ensured; and through the design, the extension length of the piston rod reaches the maximum value when the piston rod is abutted to the end part of the bearing through the sleeve.
The shell comprises a shell and an end cover, the shell is of a conical step-shaped structure, the end cover is in sealing connection with the large end of the shell through a sealing ring, and the head of the piston rod is in sealing connection with the small end of the shell through an oil seal. The split design of casing is convenient for assemble.
Preferably, the cylinder pole is equipped with on the medial surface of end cover, is equipped with the cylinder pole on the spacing portion, and the both ends of first elastic component cup joint respectively on two cylinder poles.
Preferably, the limiting part is a conical surface, and the joint of the sleeve and the limiting part is a conical hole, and the conical surface is attached to the conical hole.
Preferably, the sleeve is of a cylindrical structure, an inner hole penetrating axially is formed in the sleeve, one end, far away from the bearing, of the inner hole is provided with a step surface, the second elastic piece is arranged in the inner hole and sleeved on the piston rod, and two ends of the second elastic piece are respectively abutted to the step surface and the end face of the bearing.
Preferably, the first elastic element and the second elastic element are both springs.
Preferably, the elastic pad is an accumulator.
The accumulator may be made of a compressible material, such as: foam rubber, generally speaking, the damping fluid volume is incompressible, providing a compressible area in the first receiving chamber when the piston rod is pressed into the inner chamber; the kinetic energy of the moving object is converted into internal energy through the pressure accumulator, so that the maintenance amount is reduced, and the service life is prolonged.
Preferably, the device further comprises a split sleeve, wherein a stepped hole is formed in the split sleeve, the stepped hole comprises a first inner hole and a second inner hole with diameters which are sequentially increased, and the first inner hole is sleeved on the head of the shell.
Preferably, the head of the shell is provided with a hole which is radially penetrated, the head of the piston rod is provided with a groove corresponding to the hole, and steel balls are arranged in the groove; in the initial state, the steel ball is limited in the hole and the groove.
The invention has the advantages that:
(1) The invention can achieve the effects of rapid compression and slow extension, can reduce the compression time and can achieve the delayed execution; the invention adopts passive design, the action process is driven by mechanical energy storage, the structure is simple, the cost is low, and the technology is reliable; can be widely applied to the low-cost automation industry;
(2) The bearing supports the piston rod, so that accurate axial sliding of the piston rod is ensured; by design, when the piston rod is abutted to the end part of the bearing through the sleeve, the extension length of the piston rod reaches the maximum value;
(3) The split design of the shell is convenient for assembly;
(4) The accumulator may be made of a compressible material, such as: foam rubber, generally speaking, the damping fluid volume is incompressible, providing a compressible area in the first receiving chamber when the piston rod is pressed into the inner chamber; the kinetic energy of the moving object is converted into internal energy through the pressure accumulator, so that the maintenance amount is reduced, and the service life is prolonged.
Drawings
FIG. 1 is a schematic diagram of a quick insertion and delay separation device according to a first embodiment of the present invention;
FIG. 2 is a schematic diagram of the pressing operation of the present invention;
FIG. 3 is a schematic diagram of a press-in operation process according to the present invention;
FIG. 4 is a schematic diagram of the pressing operation of the present invention;
FIG. 5 is a schematic illustration of the extend operation of the present invention;
FIG. 6 is a schematic diagram of a second embodiment of the extending operation of the present invention;
Fig. 7 is a schematic diagram of the present invention in a recovery initial state.
Reference numerals in the drawings: a shell 1, a shell 11, an end cover 12, a sealing ring 13, an oil seal 14,
The piston rod 2, the limiting part 21, the steel ball 22, the sleeve 3, the bearing 4, the first elastic piece 5, the second elastic piece 6, the elastic pad 7 and the split sleeve 8.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions in the embodiments of the present invention will be clearly and completely described in the following in conjunction with the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Embodiment one:
As shown in fig. 1, the quick insertion and delay separation device comprises a shell 1 with a cavity along the axial direction, a piston rod 2 which is movably matched with the cavity along the axial direction and the head of which extends outside the shell, a sleeve 3 arranged in the shell, a bearing 4, a first elastic piece 5, a second elastic piece 6, an elastic pad 7 and a split sleeve 8;
The head of the piston rod 2 extends out of the shell 1, the head of the piston rod 2 and the head of the shell 1 form a sealing end, the tail of the piston rod 2 is provided with a limiting part 21 limited at the left end of the sleeve 3, so that the piston rod 2 is always positioned at the left end of the sleeve 3, the left end of the sleeve 3 can be in butt joint with or separated from the limiting part 21, a radial gap is formed between the inner wall of the sleeve 3 and the outer wall of the piston rod 2, a radial gap is formed between the outer wall of the sleeve 3 and the inner wall of the shell 1, a first accommodating cavity is formed between the limiting part 21 and the tail of the shell 1, a second accommodating cavity is formed between the sleeve 3 and the head of the shell 1, and a first elastic piece 5 and a second elastic piece 6 which can deform along the axial direction of the piston rod 2 are respectively arranged in the first accommodating cavity and the second accommodating cavity; when the piston rod 2 moves in the axial direction, the damping fluid can flow between the first accommodation chamber and the second accommodation chamber.
It should be noted that: the first accommodating cavity and the second accommodating cavity are changed under different states, and here, the gap between the outer wall of the sleeve 3 and the inner wall of the shell 1 is negligible, so that the first accommodating cavity is a cavity between the outer surface of the limiting part 21 (and the left end surface of the sleeve) and the inner surface of the shell on the left side of the limiting part 21, and the second accommodating cavity is a cavity between the inner surface of the sleeve 3 and the outer surface of the piston rod, and a cavity between the right end surface of the sleeve 2 and the left end surface of the bearing 4.
The shell 1 comprises a shell 11 and an end cover 12, the shell 1 is in a split type design, the assembly is convenient, the shell 11 is of a conical step-shaped structure, the end cover 12 is in sealing connection with the large end of the shell 11 through a sealing ring 13, the interior of the shell 11 is also a through step hole, the piston rod 2 is in sealing connection with the small end of the shell 11 through an oil seal 14, and the sealing connection ensures that damping fluid does not flow out; the sleeve 3 and the bearing 4 are arranged in the shell 11, and the bearing 4 is arranged on the left side of the oil seal 14; a gap is left between the sleeve 3 and the inner wall 11 of the housing.
The left end of the piston rod 2 is a tail part, the tail part is provided with a limiting part 21, the right side of the limiting part 21 is a conical surface, the left end of the sleeve 3 is a conical hole corresponding to the conical surface, when the piston rod is not pressed in, the conical surface is attached to the conical hole, the left side of the limiting part 21 is provided with a cylindrical rod corresponding to the cylindrical rod, the right side of the end cover 12 is provided with a cylindrical rod, and two ends of the first elastic piece 5 are respectively sleeved on the cylindrical rod of the limiting part 21 and the cylindrical rod of the end cover 12 and are abutted on the limiting part 21 and the end cover 12; the right end of the piston rod 2 is a head part, the head part is provided with a groove, and a steel ball 22 is arranged in the groove.
The sleeve 3 is of a cylindrical structure, a stepped hole is formed in an inner hole of the sleeve 3, the left end of the second elastic piece 6 is abutted to the stepped surface of the stepped hole, and the other end of the second elastic piece is abutted to the left end surface of the bearing 4.
In this embodiment, the first elastic member 5 and the second elastic member 6 are springs, and the first elastic member 5 is larger than the second elastic member 6. Under the action of the two springs, the volumes of the first accommodating cavity and the second accommodating cavity change in the axial movement process of the piston rod 2.
In the embodiment, the bearing 4 is a linear bearing, the inner ring of the bearing is in clearance fit with the piston rod 2, the outer ring of the bearing is in interference fit with the inner wall of the shell 11, and the bearing 4 supports the piston rod 2 and ensures accurate axial sliding of the piston rod 2; and through the design, when the piston rod 2 is abutted against the end part of the bearing through the sleeve 3, the extension length of the piston rod 2 reaches the maximum value, and the locking groove at the front end of the piston rod 2 corresponds to the steel ball, so that the steel ball is in a free state.
The present embodiment further comprises an elastic pad 7, said elastic pad 7 being mounted on the inner wall of the housing 1 between the piston rod 2 and the end cap 12. The elastic pad 7 is made of a compressible material (such as foaming rubber), generally, the damping fluid volume is incompressible, and when the piston rod is pressed into the inner cavity, a compressible area is provided in the first accommodating cavity; the kinetic energy of the moving object is converted into internal energy through the elastic pad, so that the maintenance amount is reduced, and the service life is prolonged. In this embodiment, the elastic pad 7 is an accumulator.
As shown in fig. 2, the embodiment further includes a split sleeve 8, wherein the split sleeve 8 has a sleeve-shaped structure with an opening at a left end and a blind hole at a right end, a stepped inner hole is formed inside, a first inner hole and a second inner hole are sequentially formed from left to right, the diameter of the first inner hole at the left end is equal to or slightly larger than the outer diameter of the right end of the housing 11, and the diameter of the second inner hole at the right end of the split sleeve 8 is larger than the diameter of the first inner hole at the left end; the first inner hole is sleeved at the head of the shell 1. The head of the shell 1 is provided with a hole which is radially penetrated, the head of the piston rod 2 is provided with a groove corresponding to the hole, and the groove is internally provided with a steel ball 22; as shown in fig. 2, in the initial state, the steel ball 22 is limited in the hole and the groove, and at this time, the piston rod 2 is also fixed. When the steel ball 22 has a movable space, as shown in fig. 3 and 4, the steel ball 22 can be extruded by the smooth position of the piston rod 2; the locking and unlocking of the piston rod 2 can be realized; of course, the steel ball 22 is in the hole in any state.
The working process of the invention comprises the following steps:
As shown in fig. 2, in the initial state, the steel ball 22 is in the hole and the groove and is limited in the first inner hole of the split sleeve 8, the limiting part 21 is attached to the left end of the sleeve 3 under the action of the first elastic member 5, the right end of the sleeve 3 is attached to the left end of the bearing 4, and at this time, the second elastic member 6 is also in the compressed state, but the elastic force is smaller than that generated by the first elastic member 5.
As shown in fig. 3, the external force is applied to the split sleeve 8 until the right end of the piston rod 2 abuts against the vertical surface of the second inner hole of the split sleeve 8, the right end of the piston rod 2 enters the second inner hole, and the steel balls 22 are free and ready to be separated from the grooves.
As shown in fig. 4, the external force continues to act on the split sleeve 8, and then acts on the piston rod 2, after the piston rod 2 is rapidly pressed in under the action of the external force, the instantaneous pressure difference of the first accommodating cavity and the second accommodating cavity (the first accommodating cavity is larger than the second accommodating cavity) and the resistance of the damping fluid enable the limiting part 21 of the piston rod to be separated from the left end of the sleeve 3, so that a gap is formed, the process compresses the first elastic piece 5, the damping fluid flows into the second accommodating cavity from the first accommodating cavity by the gap and the gap between the sleeve 3 and the inner wall of the shell 1, and the damping fluid flows fast, namely the piston rod is pressed in fast; the steel balls 22 are extruded out of the grooves by the smooth surface of the piston rod 2.
As shown in fig. 5, when the piston rod 2 is pressed into place and held, the sleeve 3 is pushed to move left to be attached to the limiting part 21 of the piston rod under the action of the second elastic member 6, the gap disappears, and only the gap between the sleeve 3 and the inner wall of the housing 1 is left as a passage, at this time, the right ends of the piston rod 2 and the housing 1 are jointly abutted against the vertical surface of the second inner hole of the split sleeve 8;
As shown in fig. 6, after the external force pressed into the piston rod 2 is removed, the first elastic member 5 pushes the piston rod 2 to extend, and under the action of the instantaneous pressure difference between the first accommodating cavity and the second accommodating cavity (the first accommodating cavity is smaller than the second accommodating cavity) and the second elastic member 6, the sleeve 3 and the piston rod 2 are always attached, so that the flow of damping fluid is slow, namely the withdrawal speed of the piston rod 2 is slow;
it should be noted that: after the external force pressed into the piston rod 2 is removed, the split sleeve 8 is pulled out (moved to the right) by adopting the external force, so that the pulling-out speed of the split sleeve 8 is larger than the pushing-out speed of the piston rod, and when the split sleeve 8 is pulled out, the split sleeve 8 is forced to stop because of being blocked by the steel balls.
As shown in fig. 7, the first elastic member 5 continues to push the piston rod 2 to extend to move to the right, the steel ball 22 moves to the position corresponding to the steel ball 22 in the groove, correspondingly, the blocking state of the split sleeve 8 is cancelled, so that the external force is convenient to continuously pull out (move to the right) the split sleeve 8, the steel ball 22 is locked in the first inner hole of the split sleeve 8, and the device is restored to the initial state shown in fig. 2.
Therefore, the quick compression and slow extension are achieved, the compression time can be reduced, and the delayed execution effect can be achieved; the invention adopts passive design, the action process is driven by mechanical energy storage, the structure is simple, the cost is low, and the technology is reliable; can be widely applied to the low-cost automation industry.
The person skilled in the art can determine the time of the mechanism delay by designing, testing, designing the gap between the piston rod 2 and the inner wall of the housing 11, and in addition, the main parameters affecting the mechanism delay time are as follows: the viscosity of the damping fluid, the two springs and the gap between the limiting part and the left end of the sleeve can be adjusted according to the time delay requirement in actual design.
The above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (5)
1. The quick insertion and delay separation device is characterized by comprising a shell body with a cavity along the axial direction, a piston rod which is movably matched with the cavity along the axial direction and the head of which extends outside the shell body, and a sleeve which is coaxial with the piston rod; the sleeve is arranged in the shell, the head part of the piston rod and the head part of the shell form a sealing end, the tail part of the piston rod is provided with a limiting part limited at the end part of the sleeve, the end part of the sleeve can be in butt joint with the limiting part for sealing or separation, the inner wall of the sleeve is provided with a radial gap with the piston rod, a radial gap is arranged between the outer wall of the sleeve and the inner wall of the shell, the limiting part and the tail part of the shell form a first accommodating cavity, the sleeve and the head part of the shell form a second accommodating cavity, and a first elastic part and a second elastic part which can axially deform along the piston rod are respectively arranged in the first accommodating cavity and the second accommodating cavity; when the piston rod moves along the axial direction, damping fluid can flow between the first accommodating cavity and the second accommodating cavity;
The elastic cushion is arranged on the inner wall of the shell and is positioned at the tail part of the piston rod;
The shell comprises a shell and an end cover, the shell is of a conical step-shaped structure, the end cover is in sealing connection with the large end of the shell through a sealing ring, and the head of the piston rod is in sealing connection with the small end of the shell through an oil seal; the inner side surface of the end cover is provided with a cylindrical rod, the limiting part is provided with a cylindrical rod, and two ends of the first elastic piece are respectively abutted to the two cylindrical rods; the limiting part is a conical surface, a conical hole is formed in the joint of the sleeve and the limiting part, and the conical surface is attached to the conical hole;
the device also comprises a split sleeve, wherein a stepped hole is arranged in the split sleeve, the stepped hole comprises a first inner hole and a second inner hole with diameters which are sequentially increased, and the first inner hole is sleeved at the head of the shell; the head of the shell is provided with a hole which is radially penetrated, the head of the piston rod is provided with a groove corresponding to the hole, and steel balls are arranged in the groove; in the initial state, the steel ball is limited in the hole and the groove.
2. The quick connect and disconnect apparatus of claim 1, further comprising bearings mounted on the piston rod between the sleeve and the housing head.
3. The quick inserting and time-delay separating device according to claim 1, wherein the sleeve is of a cylindrical structure, an inner hole penetrating axially is formed in the sleeve, one end of the inner hole, far away from the bearing, is provided with a step surface, the second elastic piece is arranged in the inner hole and sleeved on the piston rod, and two ends of the second elastic piece are respectively abutted against the step surface and the end surface of the bearing.
4. The quick connect and disconnect device of claim 1, wherein the first resilient member and the second resilient member are springs.
5. A quick insert, time delay separator according to claim 1 wherein the resilient pad is an accumulator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911344196.5A CN111120455B (en) | 2019-12-24 | 2019-12-24 | Quick inserting and time-delay separating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911344196.5A CN111120455B (en) | 2019-12-24 | 2019-12-24 | Quick inserting and time-delay separating device |
Publications (2)
| Publication Number | Publication Date |
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| CN111120455A CN111120455A (en) | 2020-05-08 |
| CN111120455B true CN111120455B (en) | 2024-04-30 |
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| CN201911344196.5A Active CN111120455B (en) | 2019-12-24 | 2019-12-24 | Quick inserting and time-delay separating device |
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| CN111120455A (en) | 2020-05-08 |
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