CN208686531U - Hand-hydraulic Split pump - Google Patents
Hand-hydraulic Split pump Download PDFInfo
- Publication number
- CN208686531U CN208686531U CN201821276157.7U CN201821276157U CN208686531U CN 208686531 U CN208686531 U CN 208686531U CN 201821276157 U CN201821276157 U CN 201821276157U CN 208686531 U CN208686531 U CN 208686531U
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- Prior art keywords
- inner chamber
- valve
- pump
- oil
- core
- 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.)
- Expired - Fee Related
Links
- 239000002828 fuel tank Substances 0.000 claims abstract description 38
- 238000000605 extraction Methods 0.000 claims abstract description 4
- 239000003921 oil Substances 0.000 claims description 86
- 229910000831 Steel Inorganic materials 0.000 claims description 28
- 239000010959 steel Substances 0.000 claims description 28
- 239000010720 hydraulic oil Substances 0.000 claims description 17
- 238000007789 sealing Methods 0.000 claims description 13
- 239000010727 cylinder oil Substances 0.000 claims description 6
- 238000009434 installation Methods 0.000 claims description 4
- 238000002955 isolation Methods 0.000 claims description 4
- 238000012423 maintenance Methods 0.000 abstract description 4
- 230000006641 stabilisation Effects 0.000 abstract description 3
- 238000011105 stabilization Methods 0.000 abstract description 3
- 230000004992 fission Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 239000012530 fluid Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
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- Check Valves (AREA)
Abstract
The utility model discloses a kind of hand-hydraulic Split pump, including the pump housing, the suction forced oil device of oil suction and oil extraction, the interior inserted valve for setting two check valves and the pressure relief device that oil cylinder is connected to the pump housing can be opened;The pump housing includes the first fuel tank (1.1), the second fuel tank (1.2) and valve plate (4), is connected to inside first fuel tank (1.1), the second fuel tank (1.2) and valve plate (1.3) three;The suction forced oil device is connected to the valve plate (1.3) of the pump housing (1), and the suction forced oil device is connected to by inserted valve with oil pump, and the pressure relief device is mounted on the one end on the pump housing and being located at inserted valve;The inserted valve is mounted on the pump housing.The hand-hydraulic fission pump configuration is simple, small in size, light-weight, fuel-displaced stabilization, high safety and easy to maintenance.
Description
Technical field
The utility model relates to pump housing technical field, be especially it is a kind of for hydraulic lifting equipment, it is lifting equipment, very heavy
Hand-hydraulic Split pump in the equipment such as top.
Background technique
Hand-hydraulic Split pump is widely used in the equipment such as hydraulic lifting equipment, lifting equipment, jack.Currently, state
The hydraulic hand-pump inside used be mostly pump with oil cylinder one and also volume it is big, mobile inconvenient, maintenance difficult and at high cost.
Occasion that is narrow in those inner spaces but needing to install additional hydraulic hand-pump is just unable to satisfy.
Utility model content
It is simple that the technical problems to be solved in the utility model is to provide a kind of structure, small in size, light-weight, fuel-displaced stabilization,
High safety and hand-hydraulic Split pump easy to maintenance.
The technical solution of the utility model is to provide a kind of hand-hydraulic Split pump having following structure, including the pump housing,
The suctions forced oil device of oil suction and oil extraction, the interior inserted valve for setting two check valves and it can open the pressure release that oil cylinder is connected to the pump housing and fill
It sets;
The pump housing includes the first fuel tank, the second fuel tank and valve plate, in first fuel tank, the second fuel tank and valve plate three
Portion's connection;The suction forced oil device is connected to the valve plate of the pump housing, and the suction forced oil device is connected to by inserted valve with oil pump, described
Pressure relief device is mounted on the one end on the pump housing and being located at inserted valve;The inserted valve is mounted on the pump housing, and the inserted valve includes
The first valve body, steel ball, cone valve set, poppet valve core, volute spring and the valve deck being mounted in valve plate;Be equipped in first valve body with
The first inner chamber of oil cylinder connection, the second inner chamber being connected to suction forced oil device and third inner cavity, the cone valve set and poppet valve core are set
In first inner chamber and tail portion is offseted with volute spring and valve deck, and the valve deck is fixed on the first valve body, the poppet valve core top
The communicating passage of first inner chamber and second inner chamber is closed on or off, and the steel ball is located in second inner chamber, the steel ball top on or off
Close the communicating passage of second inner chamber Yu third inner cavity;Forced oil device pressure oil state is inhaled, the poppet valve core opens first inner chamber and the
The communicating passage of two inner cavities, the steel ball close the communicating passage of second inner chamber and third inner cavity, and the suction forced oil device is equipped with
Pump block, the hydraulic oil in the pump block is by first inner chamber, one-way throttle valve to oil cylinder;Inhale forced oil device oil suction state, institute
The communicating passage that poppet valve core closes first inner chamber and second inner chamber is stated, the steel ball opens the connection of second inner chamber and third inner cavity
Channel, the first fuel tank, the second fuel tank oil enter in pump block.
The suction forced oil device includes pump block, pedal stroke, pinch roller;The mounting base is fixed on the side wall of the pump housing, the pump
Set is mounted on valve plate and internal connection, is equipped with the inner cavity slided for pump core in the pump core, the spring cup axial limiting exists
In pump core, outside pump block, the spring top offsets the spring pocket with spring cup, the top surface phase of the spring bottom end and valve plate
It supports, the pedal stroke is connect with pinch roller seat, and the pinch roller seat is equipped with upper first articulated shaft and second hinge axis, and described first is hinged
Axle position is in pinch roller seat and mounting base, and in pinch roller seat, the pinch roller covers outside second hinge axis the second hinge axle position, institute
State that pinch roller is located at the top of pump core and the two is in contact, first articulated shaft is located at the side of pump core, and second hinge axis is pacified
Holding position is higher than the installation site of the first articulated shaft.
The pressure relief device includes the second valve body, draining pedal, thimble and spring, and second valve body is located at the first valve body
One end, described thimble one end, which is located in the second valve body and synchronizes, opens poppet valve core and steel ball, and the spring pocket is described in thimble
Poppet valve core, which is located at, to be stretched out in outside the second valve body, and the draining pedal is a lever and is rotatably connected on the second valve body, described to let out
One end of oily pedal and the outer end of poppet valve core offset;
Oil cylinder oil return state, the poppet valve core open the communicating passage of first inner chamber and second inner chamber, and the steel ball is opened
The communicating passage of second inner chamber and third inner cavity, in-oil cylinder hydraulic oil are back to the first oil by first inner chamber and second inner chamber
In case, the second fuel tank.The steel ball side offsets with poppet valve core when oil cylinder oil return state, and the other end offsets with thimble.
The outer wall of first valve body is equipped with isolation first inner chamber and the first sealing ring of second inner chamber and is isolated the
Second sealing ring of two inner cavities and third inner cavity, the second inner chamber is between the first sealing ring and the second sealing ring.
The rotatable connecting portion of the pedal stroke is equipped with the footrest joint of the swing angle of lockable pedal stroke.
After using the above structure, the utility model, which has the advantage that, to be jammed on foot-driven lever, does pinch roller seat around around axis center
Movement in a curve presses down pump core by pinch roller, to making the hydraulic oil of poppet valve core in pump block chamber reach valve body cavity by oil circuit
Room, due to the increase of hydraulic fluid flow rate, under the effect of pressure F pressure, closing in first inner chamber, while under the action of pressure F
The ball valve of second inner chamber is opened, the first inner chamber of valve plate is come, then one-way throttle valve outlet is come by oil circuit, completes fuel-displaced
Movement;When jam on power, the spool that shed on foot-driven lever reset to original one under the action of spring up reset force, pump core
A position, while generating a suction F in pump block chamber and inhaling, poppet valve core under the action of F inhales, in valve body first inner chamber is inhaled
It closes, the ball valve on right side is inhaled out, so that the hydraulic oil in fuel tank is drawn onto the chamber of pump block by oil circuit, completes oil suction
Work is completed in movement, movement so repeatedly, and the above structure is simple, small in size, light-weight, fuel-displaced stabilization, high safety, the
One fuel tank, the second fuel tank and the pump housing, pump core, valve plate etc. can be dismantled, and make easy to maintenance.
Detailed description of the invention
Fig. 1 is the schematic diagram of the section structure of the hand-hydraulic Split pump of the utility model.
Fig. 2 is the right side structural representation of the hand-hydraulic Split pump of the utility model.
Fig. 3 is the schematic diagram of the section structure of the valve plate of the utility model.
Fig. 4 is the portion the A enlarged structure schematic diagram of Fig. 3.
Fig. 5 is the oil outlet of inserted valve and the connection schematic diagram of oil cylinder.
Fig. 6 is the oil inlet of inserted valve and the connection schematic diagram of fuel tank.
Fig. 7 is the oil inlet and outlet of inserted valve and the connection schematic diagram for inhaling forced oil device.
It is as shown in the figure:
1.1, the first fuel tank, the 1.2, second fuel tank, 1.3, valve plate, 2.1, pump block, 2.2, pump core, 2.3, spring, 2.4, bullet
Spring lid, 2.5, pinch roller seat, 2.6, mounting base, 2.7, pedal stroke, 2.8, pinch roller, the 2.9, first articulated shaft, 3.0, second is hinged
Axis, the 4.1, first valve body, 4.2, steel ball, 4.3, cone valve set, 4.4, poppet valve core, 4.5, volute spring, 4.6, valve deck, 4.7, first
Sealing ring, the 4.8, second sealing ring, the 5.1, second valve body, 5.2, draining pedal, 5.3, thimble, 5.4, spring, 6, one-way throttle
Valve, the 7, first pipeline, the 8, second pipeline, 9, third pipeline.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawing.
It is described picture 1-4, the hand-hydraulic Split pump of the utility model, the suction pressure oil including the pump housing, energy oil suction and oil extraction
Device, the interior inserted valve for setting two check valves and the pressure relief device that oil cylinder is connected to the pump housing can be opened;The pump housing includes first
Fuel tank 1.1, the second fuel tank 1.2 and valve plate, first fuel tank 1.1, the second fuel tank 1.2 and valve plate three inside are connected to;It is described
It inhales forced oil device to be connected to the valve plate 1.3 of the pump housing 1, the suction forced oil device is connected to by inserted valve with oil pump, the pressure release dress
Set the one end for being mounted on the pump housing and being located at inserted valve;The inserted valve is mounted on the pump housing.
The inserted valve include be mounted in valve plate the first valve body 4.1, steel ball 4.2, cone valve set 4.3, poppet valve core 4.4,
Volute spring 4.5 and valve deck 4.6;Cone valve set 4.3 and ball valve are equivalent to a check valve, in first valve body 4.1
Equipped with the first inner chamber being connected to oil cylinder, the second inner chamber being connected to suction forced oil device and third inner cavity, first valve body
4.1 outer wall be equipped with isolation first inner chamber and the first sealing ring 4.7 of second inner chamber and be isolated second inner chamber in third
Second sealing ring 4.8 of chamber, the second inner chamber is between the first sealing ring 4.7 and the second sealing ring 4.8.
The cone valve covers 4.3 and poppet valve core 4.4 is located in first inner chamber and 4.6 phase of tail portion volute spring 4.5 and valve deck
It supports, the valve deck 4.6 is fixed on the first valve body 4.1, and 4.5 one end of volute spring offsets with poppet valve core 4.4, the other end and valve deck
4.6 offset, non-pressure oil state, in poppet valve core 4.4 by the elastic force isolation first inner chamber of volute spring 4.5 and leading to for second inner chamber
Road, under pressure oil state, poppet valve core 4.4 is pushed by hydraulic oil, is overcome the elastic force of volute spring 4.5 and is stretched inside, to open
The channel of first inner chamber and second inner chamber, hydraulic oil enter oil cylinder from channel.The poppet valve core 4.4 is opened or is closed in first
The communicating passage of chamber and second inner chamber, the steel ball 4.2 are located in second inner chamber, and the steel ball 4.2 is opened or closed in second
The communicating passage of chamber and third inner cavity;
Non- pressure oil state, it is close by the elastic force of volute spring 4.5 and the channel of first inner chamber and second inner chamber in poppet valve core 4.4
It seals, under pressure oil state, poppet valve core 4.4 is pushed by hydraulic oil, is overcome the elastic force of volute spring 4.5 and is stretched inside.Suction pressure oil dress
Pressure oil state is set, the poppet valve core 4.4 opens the communicating passage of first inner chamber and second inner chamber under the action of hydraulic oil, described
Steel ball 4.2 closes the communicating passage of second inner chamber and third inner cavity, and the hydraulic oil in the pump block 2.1 passes through first inner chamber, list
In to throttle valve 6 to oil cylinder;
Forced oil device oil suction state is inhaled, in elastic force next door first inner chamber and second of the poppet valve core 4.4 by volute spring 4.5
The channel of chamber, the poppet valve core 4.4 close the communicating passage of first inner chamber and second inner chamber, and the steel ball 4.2 is opened in second
The communicating passage of chamber and third inner cavity, the first fuel tank 1.1, the second fuel tank 1.2 oil enter in pump block 2.1.
The suction forced oil device includes pump block 2.1, pump core 2.2, spring 2.3, spring cup 2.4, pinch roller seat 2.5, mounting base
2.6, pedal stroke 2.7, pinch roller 2.8;The mounting base 2.6 is fixed on the side wall of the pump housing 1, and the pump block 2.1 is mounted on valve plate 1.3
Upper and internal connection, the pump core 2.2 is interior to be equipped with the inner cavity slided for pump core 2.2, and 2.4 axial limiting of spring cup is pumping
On core 2.2,2.3 sets of the spring is outside pump block 2.1, and 2.3 top of spring offsets with spring cup 2.4, the spring 2.3
Bottom end and the top surface of valve plate 1.3 offset, and the pedal stroke 2.7 is connect with pinch roller seat 2.5, and the pinch roller seat 2.5 is equipped with upper first
Articulated shaft 2.9 and second hinge axis 3.0, first articulated shaft 2.9 are located in pinch roller seat 2.5 and mounting base 2.6, and described the
Two hinge axis 3.0 is located in pinch roller seat 2.5, and for 2.8 sets of the pinch roller outside second hinge axis 3.0, the pinch roller 2.8 is located at pump core
2.2 top and the two is in contact, first articulated shaft 2.9 is located at the side of pump core 2.2, and second hinge axis 3.0 is installed
Position is higher than the installation site of the first articulated shaft 2.9.Toward lower swing pedal stroke 2.7, pinch roller 2.8 is made to push pump core 2.2 past down
Under, so that the oil in pump block 2.1 is expressed in oil cylinder;Pedal stroke 2.7 is unclamped, pump core 2.2 is multiple under the action of spring 2.3
Position, pump core 2.2 up, make pump block 2.1 generate negative pressure, to make pump block 2.1 from the first fuel tank 1.1,1.2 oil suction of the second fuel tank.
The pressure relief device includes the second valve body 5.1, draining pedal 5.2, thimble 5.3 and spring 5.4, second valve body
5.1 are located at one end of the first valve body 4.1, and described 5.3 one end of thimble, which is located in the second valve body 5.1 and synchronizes, opens poppet valve core 4.4
With steel ball 4.2, in thimble 5.3, the poppet valve core 4.4, which is located at, to be stretched out in outside the second valve body 5.1, described to let out for 5.4 sets of the spring
Oily pedal 5.2 is a lever and is rotatably connected on the second valve body 5.1, one end and the poppet valve core 4.4 of the draining pedal 5.2
Outer end offsets;Oil cylinder oil return state, the poppet valve core 4.4 open the communicating passage of first inner chamber and second inner chamber, the steel ball
4.2 open the communicating passage of second inner chamber and third inner cavity, and in-oil cylinder hydraulic oil flows back by first inner chamber and second inner chamber
To the first fuel tank 1.1, the second fuel tank 1.2.4.2 side of steel ball offsets with poppet valve core 4.4 when oil cylinder oil return state, another
End offsets with thimble 5.3, i.e., thimble 5.3 pushes make inside, pushes steel ball 4.2, opens the company of second inner chamber Yu third inner cavity
Circulation passage, then push inside, make steel ball 4.2 go to open poppet valve core 4.4, open the communicating passage of first inner chamber and second inner chamber,
To get through first inner chamber, second inner chamber and third inner cavity, circuit, hydraulic oil are directly constituted by oil circuit and returns to fuel tank.
The rotatable connecting portion of the pedal stroke 2.7 is equipped with the footrest joint of the swing angle of lockable pedal stroke 2.7
3.1, convenient when not having to foot-driven lever, swivel foot treadle is packed up perpendicular to the ground.
As shown in figure 5, first pipeline one end of inserted valve is connected to first inner chamber, the other end is connected to oil cylinder, Ling Yifen
Bye-pass is technique mouth, is blocked.
As shown in fig. 6, second pipeline one end of inserted valve is connected to third inner cavity, the other end and the first fuel tank and the second oil
Case connection, another branch line are technique mouth, are blocked.
As shown in fig. 7, third pipeline one end of inserted valve is connected to second inner chamber, the other end and the pump block for inhaling forced oil device
2.1 connections, another branch line are technique mouth, are blocked.
When work, jam on foot-driven lever, make pinch roller seat around outer-hexagonal pitch do movement in a curve, by pinch roller pump core is past
It pushes, the second inner chamber to the hydraulic oil made in pump block chamber by oil circuit arrival inserted valve, due to the increase of hydraulic fluid flow rate,
The ball valve in second inner chamber is opened under the action of pressure F simultaneously, i.e., poppet valve core opens in first under the action of hydraulic oil
The communicating passage of chamber and second inner chamber, while making the communicating passage of steel ball closing second inner chamber and third inner cavity, to make hydraulic
Oil comes the first inner chamber of inserted valve, then comes one-way throttle valve outlet by oil circuit, completes fuel-displaced movement;When shedding foot-driven lever
On jam on power, spool under the action of spring up reset force, pump core is reset to an original position, while small pump block
It generates a suction F in chamber to inhale, under the action of F inhales, the poppet valve core of the first inner chamber of inserted valve is inhaled closes, that is, closes the
The communicating passage of one inner cavity and second inner chamber, the intracorporal ball valve of the second chamber are inhaled out, that is, open second inner chamber and third inner cavity
Communicating passage complete oil suction movement so that the hydraulic oil in fuel tank is drawn onto the chamber of pump block by oil circuit, it is anti-in this way
Work is completed in multiple movement.
Claims (6)
1. a kind of hand-hydraulic Split pump, it is characterised in that: including the pump housing, can oil suction and oil extraction suction forced oil device, interior set two
The inserted valve of a check valve and the pressure relief device that oil cylinder is connected to the pump housing can be opened;The pump housing includes the first fuel tank (1.1), the
Two fuel tanks (1.2) and valve plate (1.3) connect inside first fuel tank (1.1), the second fuel tank (1.2) and valve plate (1.3) three
It is logical;The suction forced oil device is connected to the valve plate (1.3) of the pump housing (1), and the suction forced oil device is connected to by inserted valve with oil pump,
The pressure relief device is mounted on the one end on the pump housing and being located at inserted valve;The inserted valve is mounted on the pump housing, the inserted valve
Including the first valve body (4.1), steel ball (4.2), cone valve set (4.3), the poppet valve core (4.4), Conical Projectile being mounted in valve plate (1.3)
Spring (4.5) and valve deck (4.6);It is equipped with the first inner chamber being connected to oil cylinder in first valve body (4.1), connects with suction forced oil device
Logical second inner chamber and third inner cavity, the cone valve set (4.3) and poppet valve core (4.4) are located in first inner chamber and tail portion is bored
Shape spring (4.5) and valve deck (4.6) offset, and the valve deck (4.6) is fixed on the first valve body (4.1), the poppet valve core (4.4)
The communicating passage of first inner chamber and second inner chamber is opened or closes, the steel ball (4.2) is located in second inner chamber, the steel ball
(4.2) open or close the communicating passage of second inner chamber and third inner cavity;Inhale forced oil device pressure oil state, the poppet valve core
(4.4) communicating passage of first inner chamber and second inner chamber is opened, the steel ball (4.2) closes the company of second inner chamber and third inner cavity
Circulation passage, the suction forced oil device are equipped with pump block (2.1), and the hydraulic oil in the pump block (2.1) is by first inner chamber, unidirectional section
It flows in valve (6) to oil cylinder;Forced oil device oil suction state is inhaled, the poppet valve core (4.4) closes the company of first inner chamber and second inner chamber
Circulation passage, the steel ball (4.2) open the communicating passage of second inner chamber and third inner cavity, the first fuel tank (1.1), the second fuel tank
(1.2) oil enters in pump block (2.1).
2. hand-hydraulic Split pump according to claim 1, it is characterised in that: the suction forced oil device includes pump block
(2.1), pump core (2.2), spring (2.3), spring cup (2.4), pinch roller seat (2.5), mounting base (2.6), pedal stroke (2.7), pressure
It takes turns (2.8);The mounting base (2.6) is fixed on the side wall of the pump housing (1), and the pump block (2.1) is mounted on valve plate (1.3) and interior
Portion's connection, the pump core (2.2) is interior to be equipped with the inner cavity slided for pump core (2.2), and spring cup (2.4) axial limiting is in pump core
(2.2) on, the spring (2.3) cover pump block (2.1) outside, spring (2.3) top offsets with spring cup (2.4), described
Spring (2.3) bottom end and the top surface of valve plate (1.3) offset, and the pedal stroke (2.7) connect with pinch roller seat (2.5), the pinch roller
Seat (2.5) is equipped with upper first articulated shaft (2.9) and second hinge axis, and ((3.0), first articulated shaft (2.9) are located at pinch roller seat
(2.5) and on mounting base (2.6), the second hinge axis (3.0) is located on pinch roller seat (2.5), and the pinch roller (2.8) covers the
Outside, the pinch roller (2.8) is located at the top of pump core (2.2) and the two is in contact, first articulated shaft for two hinge axis (3.0)
(2.9) it is located at the side of pump core (2.2), and second hinge axis (3.0) installation site is higher than the installation position of the first articulated shaft (2.9)
It sets.
3. hand-hydraulic Split pump according to claim 1, it is characterised in that: the pressure relief device includes the second valve body
(5.1), draining pedal (5.2), thimble (5.3) and spring (5.4), second valve body (5.1) are located at the first valve body (4.1)
One end, described thimble (5.3) one end, which is located in the second valve body (5.1) and synchronizes, opens poppet valve core (4.4) and steel ball (4.2), institute
It states spring (5.4) to cover in thimble (5.3), the poppet valve core (4.4), which is located at, stretches out in the second valve body (5.1) outside, and the draining is stepped on
Plate (5.2) is a lever and is rotatably connected on the second valve body (5.1), one end of the draining pedal (5.2) and poppet valve core
(4.4) outer end offsets;
Oil cylinder oil return state, the poppet valve core (4.4) open the communicating passage of first inner chamber and second inner chamber, the steel ball
(4.2) communicating passage of second inner chamber and third inner cavity is opened, in-oil cylinder hydraulic oil is returned by first inner chamber and second inner chamber
It flow in the first fuel tank (1.1), the second fuel tank (1.2).
4. hand-hydraulic Split pump according to claim 3, it is characterised in that: steel ball when oil cylinder oil return state
(4.2) side offsets with poppet valve core (4.4), and the other end offsets with thimble (5.3).
5. hand-hydraulic Split pump according to claim 1, it is characterised in that: on the outer wall of first valve body (4.1)
Equipped with isolation first inner chamber and the first sealing ring (4.7) of second inner chamber and second inner chamber and third inner cavity is isolated it is second close
Seal (4.8), the second inner chamber is between the first sealing ring (4.7) and the second sealing ring (4.8).
6. hand-hydraulic Split pump according to claim 2, it is characterised in that: the rotation connection of the pedal stroke (2.7)
Position is equipped with the footrest joint (3.1) of the swing angle of lockable pedal stroke (2.7).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201821276157.7U CN208686531U (en) | 2018-08-08 | 2018-08-08 | Hand-hydraulic Split pump |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201821276157.7U CN208686531U (en) | 2018-08-08 | 2018-08-08 | Hand-hydraulic Split pump |
Publications (1)
Publication Number | Publication Date |
---|---|
CN208686531U true CN208686531U (en) | 2019-04-02 |
Family
ID=65884254
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201821276157.7U Expired - Fee Related CN208686531U (en) | 2018-08-08 | 2018-08-08 | Hand-hydraulic Split pump |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN208686531U (en) |
-
2018
- 2018-08-08 CN CN201821276157.7U patent/CN208686531U/en not_active Expired - Fee Related
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
GR01 | Patent grant | ||
GR01 | Patent grant | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190402 |