CN111017786A - Hydraulic jack - Google Patents
Hydraulic jack Download PDFInfo
- Publication number
- CN111017786A CN111017786A CN201911362314.5A CN201911362314A CN111017786A CN 111017786 A CN111017786 A CN 111017786A CN 201911362314 A CN201911362314 A CN 201911362314A CN 111017786 A CN111017786 A CN 111017786A
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- Prior art keywords
- oil
- shell
- hydraulic jack
- guide pipe
- pressure relief
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- 238000005086 pumping Methods 0.000 claims description 19
- 238000007789 sealing Methods 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 2
- 230000007423 decrease Effects 0.000 abstract description 7
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
- B66F3/24—Devices, e.g. jacks, adapted for uninterrupted lifting of loads fluid-pressure operated
- B66F3/25—Constructional features
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
- B66F3/24—Devices, e.g. jacks, adapted for uninterrupted lifting of loads fluid-pressure operated
- B66F3/25—Constructional features
- B66F3/26—Adaptations or arrangements of pistons
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Actuator (AREA)
Abstract
The invention discloses a hydraulic jack, comprising: the hydraulic jack comprises a shell component, a supporting piece, a pressurizing component, a pressure relief component, a control assembly, an oil bag, an oil supply area, a telescopic component, an oil guide component and a base, wherein the volume of the oil bag is variable, so that the hydraulic jack can expand and contract along with the increase and decrease of the oil amount in the oil bag, and can keep the interior of the oil bag in a vacuum state, and the hydraulic jack is not influenced by air leakage; meanwhile, the supporting piece with adjustable height is arranged, the height of the supporting piece can be adjusted in advance according to the height of the object to be supported, the problem that the lifting space of the hydraulic jack is large due to different heights of the object to be supported is solved, and time and labor are saved; by arranging the base which can be changed with the angle, the angle between the stressed object and the supporting point of the jack can be automatically adjusted, so that the stressed object can keep vertical stress.
Description
Technical Field
The invention relates to the field of mechanical equipment, in particular to a hydraulic jack.
Background
The existing hydraulic jack is characterized in that oil in two areas of the jack is converted with each other, a telescopic rod is driven to move back and forth, and the telescopic rod is arranged in one area, so that the oil storage volumes of the two areas are different inevitably, and the larger the telescopic rod is, the larger the difference is. At present, a third area is set between the outer wall of an oil cylinder and a shell of a common hydraulic jack and is used as an oil supply area to compensate the difference of oil storage volumes of the two areas. However, the hydraulic jack is prone to leak oil or air and cannot be used due to the fact that the pressure difference is inevitably generated due to the volume difference when the telescopic rod moves back and forth, and due to the fact that the vehicle-mounted jack is stored in a space and jolts.
Disclosure of Invention
The invention provides a hydraulic jack, which is used for solving the problem that the hydraulic jack cannot be used due to oil leakage or air leakage.
In order to solve the above technical problem, an embodiment of the present invention provides the following technical solutions:
a hydraulic jack comprising:
the shell assembly comprises a first shell and a second shell, the first shell is sleeved on the second shell, and the first shell is connected with the second shell in a sliding mode;
the support piece is arranged on the side surface of the first shell and is used for supporting an object to be supported;
the pressurizing assembly and the pressure relief assembly are arranged at the upper end of the first shell;
the control assembly is fixedly arranged in the first shell;
the volume of the oil bag is variable according to the volume of oil liquid in the oil bag, the oil bag is arranged in the first shell, and the oil bag is positioned below the control assembly component and is fixedly connected with the control assembly component;
the oil supply area is arranged in the second shell, the oil supply area is positioned below the oil bag, the oil bag is separated from the oil supply area through a sealing element, and the sealing element is fixedly arranged at the first end of the second shell;
the telescopic assembly comprises a telescopic area and an oil cylinder piston, the telescopic area is positioned below the oil supply area, and the telescopic area is connected with the oil supply area through the oil cylinder piston;
the oil guide assembly comprises a first oil guide pipe and a second oil guide pipe, the first oil guide pipe is sleeved outside the second oil guide pipe, the first end of the first oil guide pipe and the first end of the second oil guide pipe are fixedly connected with the control assembly, the first oil guide pipe and the second oil guide pipe penetrate through the oil bag and the oil supply area, the second end of the first oil guide pipe is fixedly connected with the oil cylinder piston, the second end of the second oil guide pipe is communicated with the telescopic area, a first oil return hole and a second oil return hole are formed in the first oil guide pipe, the first oil return hole is communicated with the first oil guide pipe and the oil bag, and the second oil return hole is communicated with the first oil guide pipe and the oil supply area;
a base connected with the second housing second end.
Further, the pressurizing assembly includes:
the handle unit, the piston rod and the oil pumping cylinder;
the handle unit comprises a first handle, a second handle and a hand-held part, wherein a first end of the first handle is hinged with the first shell, a second end of the first handle is hinged with a first end of the second handle, a second end of the second handle is hinged with a first end of the piston rod, a third end of the second handle is fixedly connected with the hand-held part, and the piston rod is connected in the oil pumping cylinder in a sliding manner;
the oil pumping cylinder is connected with the control assembly, and when the piston rod moves up and down, the control assembly controls the flowing direction of oil in the hydraulic jack.
Further, the control assembly includes:
an oil inlet check valve and an oil outlet check valve;
the oil inlet end of the oil inlet check valve is connected with the oil bag and the first oil guide pipe, and the oil outlet end of the oil inlet check valve is connected with the pumping cylinder;
the oil inlet end of the oil outlet check valve is connected with the oil pumping cylinder, and the oil outlet end of the oil outlet check valve is connected with the second oil guide pipe.
Further, the pressure relief assembly comprises:
a pressure relief key and a pressure relief push rod;
the pressure relief key is hinged with the first shell;
the pressure relief key is connected with the first end of the pressure relief push rod so as to enable the pressure relief push rod to move up and down;
the second end of the pressure relief push rod is connected with the control assembly, and when the pressure relief push rod moves up and down, the control assembly controls the flowing direction of oil inside the hydraulic jack.
Further, the control assembly further comprises:
and the oil inlet end of the pressure relief check valve is connected with the second oil guide pipe, and the oil outlet end of the pressure relief check valve is connected with the oil bag.
Further, the oil bag is an elastic oil bag.
Further, the support is slidably coupled to the first housing via a sliding assembly.
Further, the sliding assembly includes:
the lifting adjusting ring, the lifting step and the limiting block;
the lifting adjusting ring is sleeved on the first shell in a sliding mode, the lifting steps are arranged on the first shell, and the limiting block is fixedly connected with the supporting piece.
Furthermore, the limiting block is hinged to the lifting adjusting ring through a pin shaft.
Furthermore, the base is connected with the second end of the second shell through a spherical hinge, and an anti-skid pad is arranged below the base.
According to the hydraulic jack provided by the embodiment of the invention, the volume-variable oil bag is arranged, so that the hydraulic jack can expand and contract along with the increase and decrease of the oil amount in the oil bag, the interior of the hydraulic jack can be kept in a vacuum state, and the hydraulic jack is not influenced by the air leakage.
Drawings
FIG. 1 is a schematic structural diagram of a hydraulic jack according to the present invention;
FIG. 2 is an enlarged schematic view of a base portion of the present invention;
FIG. 3 is an enlarged schematic view of part A of the present invention;
FIG. 4 is an enlarged view of the portion A of the present invention;
fig. 5 is an enlarged schematic view of part B of the present invention.
10, a shell component; 101. a first housing; 102. a second housing; 103. a fixing member; 11. a support member; 111. a sliding assembly; 112. a lifting adjusting ring; 113. lifting steps; 114. a limiting block; 115. a pin shaft; 12. a pressurizing assembly; 121. a handle unit; 1211. a first handle; 1212. a second handle; 1213. a hand-held portion; 122. a piston rod; 123. an oil cylinder is driven; 13. a pressure relief assembly; 131. the key is unloaded; 132. a pressure relief push rod; 14. a control assembly; 141. an oil inlet check valve; 142. an oil outlet check valve; 143. a pressure relief check valve; 144. an oil return pipe; 15. an oil pocket; 151. a clip; 16. an oil supply area; 17. a telescoping assembly; 171. a telescoping zone; 172. a cylinder piston; 18. a seal member; 19. an oil guide assembly; 191. a first oil guide pipe; 192. a second oil guide pipe; 193. a first oil return hole; 194. a second oil return hole; 20. a base; 201. a first support; 2011. a U-shaped cavity; 2012. a locking member; 2013. steel balls; 2014. a spring; 202. a second support; 203. a base plate; 202. a non-slip mat.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
It should be noted that the description relating to "first", "second", etc. in the present invention is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
As shown in fig. 1, a hydraulic jack includes:
the housing assembly 10 comprises a first housing 101 and a second housing 102, the first housing 101 is sleeved on the second housing 102, and the first housing 101 is slidably connected with the second housing 102; in the exemplary embodiment, first housing 101 and second housing 102 are hollow cylinders.
A support 11, wherein the support 11 is mounted on the side of the first casing 101, and the support 11 is used for supporting an object to be supported; the supporting member 11 is installed at a side of the first casing 101, and when the first casing 101 slides relative to the second casing 102, the supporting member 11 is driven to slide, and the supporting member 11 is used for supporting an object to be supported when the hydraulic jack is used, such as an automobile.
A pressurizing assembly 12 and a pressure relief assembly 13, wherein the pressurizing assembly 12 and the pressure relief assembly 13 are arranged at the upper end of the first shell 101; the pressurizing assembly 12 is used for pressurizing the hydraulic jack, so that the first shell 101 slides upwards relative to the second shell 102, the support 11 is driven to move upwards to support the object to be supported, and the pressure relief assembly is used for relieving pressure of the hydraulic jack, namely after the hydraulic jack is used, the first shell 101 slides downwards relative to the second shell 102, so that the hydraulic jack is reset.
A control assembly 14, wherein the control assembly 14 is fixedly arranged in the first housing 101; the control assembly 14 is used for controlling the direction of oil flow inside the hydraulic jack.
The volume of the oil bag 15 is variable according to the volume of oil in the oil bag 15, the oil bag 15 is arranged in the first shell 101, and the oil bag 15 is positioned below the components of the control assembly 14 and fixedly connected with the components of the control assembly 14; wherein the upper end of the oil bag 15 is communicated with the control assembly 14, so that oil can enter the control assembly 14, the lower end of the oil bag 15 is fixed on the first oil guide pipe 191, in this embodiment, the lower end of the oil bag 15 is fixed on the first oil guide pipe 191 through a clip 151. The volume of the oil bag 15 changes according to the volume of the oil in the oil bag 15, and the oil bag can expand and contract along with the increase and decrease of the oil quantity, and the interior of the oil bag can be kept in a vacuum state without being influenced by the leaked air.
An oil supply region 16, the oil supply region 16 being disposed within the second housing 102, the oil supply region 16 being located below the oil pocket 15, the oil pocket 15 being separated from the oil supply region 16 by a seal 18 to prevent oil leakage from the oil supply region 16, the seal 18 being fixedly mounted to a first end of the second housing 102, the seal 18 being an oil seal in an exemplary embodiment.
The telescopic assembly 17 comprises a telescopic area 171 and a cylinder piston 172, the telescopic area 171 is positioned below the oil supply area 16, and the telescopic area 171 is connected with the oil supply area 16 through the cylinder piston 172; when the amount of oil in the telescopic region 171 increases, the volume of the telescopic region 171 increases, the cylinder piston 172 is pushed to move upwards along the second housing 102, and when the amount of oil in the telescopic region 171 decreases, the volume of the telescopic region 171 decreases, and the cylinder piston 172 moves downwards along the second housing 102.
The oil guide assembly 19, as shown in fig. 5, the oil guide assembly 19 includes a first oil guide pipe 191 and a second oil guide pipe 192, the first oil guiding pipe 191 is sleeved outside the second oil guiding pipe 192, a first end of the first oil guiding pipe 191 and a first end of the second oil guiding pipe 192 are fixedly connected with the control assembly 14, the first oil introduction pipe 191 and the second oil introduction pipe 192 pass through the oil pocket 15 and the oil supply region 16, the second end of the first oil guide pipe 191 is fixedly connected with the cylinder piston 172, the second end of the second oil guide pipe 192 is communicated with the telescopic area 171, wherein, the first end of the first oil guiding pipe 191 is fixedly connected with the control assembly 14, the second end of the first oil guiding pipe 191 is fixedly connected with the oil cylinder piston 172, so that the distance between the control assembly 14 and the oil cylinder piston 172 is always kept unchanged, in the exemplary embodiment, first oil guide tube 191 and second oil guide tube 192 are metal tubes. The first oil guide pipe 191 is provided with a first oil return hole 193 and a second oil return hole 194, the first oil return hole 193 is communicated with the first oil guide pipe 191 and the oil bag 15, and the second oil return hole 194 is communicated with the first oil guide pipe 191 and the oil supply area 16, so that oil in the hydraulic jack can flow between the oil bag 15 and the oil supply area 16 through the first oil guide pipe 191.
A base 20, said base 20 being connected to said second end of said second housing 102. The base 20 and the second end of the second housing 102 may be fixedly connected or movably connected, wherein the movable connection may be a hinge connection or a sliding connection, and the present solution is not limited herein.
Illustratively, as shown in fig. 2, the base 20 is connected to the second end of the second housing 102 by a ball hinge. Wherein, base 20 includes first support 201, second support 202 and bottom plate 203, the lower part of first support 201 is inside sunken, forms U die cavity 2011, second support 202 is spherical, and second support 202 cooperation is installed in U die cavity 2011, and second support 202 is fixed in on the bottom plate 203, wherein, is equipped with retaining member 2012 in the U die cavity 2011, retaining member 2012 includes steel ball 2013 and spring 2014, and first support 201 is connected to the one end of spring 2014, and steel ball 2013 is connected to other one end, and steel ball 2013 butt second support 202. The second support 202 can be inclined in any direction of 12-15 degrees, and the angle between the object to be supported and the supporting point of the jack can be automatically adjusted, so that the object to be supported and the jack are kept to be vertically stressed.
Further, as shown in fig. 3, the pressurizing assembly 12 includes:
a handle unit 121, a piston rod 122, and a pump cylinder 123;
the handle unit 121 comprises a first handle 1211, a second handle 1212 and a hand-held portion 1213, wherein a first end of the first handle 1211 is hinged to the first housing 101, a second end of the first handle 1211 is hinged to a first end of the second handle 1212, a second end of the second handle 1212 is hinged to a first end of the piston rod 122, a third end of the second handle 1212 is fixedly connected to the hand-held portion 1213, and the piston rod 122 is slidably connected to the inside of the inflating cylinder 123; by arranging the first handle 1211, when the hydraulic jack is used, the distance for the piston rod 122 to slide in the pumping cylinder 123 is larger, so that more oil enters the pumping cylinder 123. The first housing 101 is provided with a fixing member 103, and the fixing member 103 is used for fixing the handheld portion 1213. When the hydraulic jack is not in use, the hand-held portion 1213 is fixedly stored in the fixing member 103.
The oil pumping cylinder 123 is connected to the control assembly 14, and when the piston rod 122 moves up and down, the control assembly 14 is adjusted to control the flow direction of the oil in the hydraulic jack.
Further, as shown in fig. 4, the pressure relief assembly 13 includes:
a pressure relief key 131 and a pressure relief push rod 132;
the first end of the pressure relief key 131 is fixedly connected with the first end of the pressure relief push rod 132 and is used for driving the pressure relief push rod 132 to move up and down, and the second end of the pressure relief key 131 is a pressing part;
the second end of the pressure relief push rod 132 is connected to the control assembly 14, and when the pressure relief push rod 132 moves up and down, the control assembly 14 is adjusted to control the flow direction of the oil inside the hydraulic jack.
Further, the control assembly 14 includes:
an oil inlet check valve 141 and an oil outlet check valve 142;
the oil inlet end of the oil inlet check valve 141 is connected with the oil bag 15 and the first oil guide pipe 191, and the oil outlet end of the oil inlet check valve 141 is connected with the pumping cylinder 123;
the oil inlet end of the oil outlet check valve 142 is connected to the pumping cylinder 123, and the oil outlet end of the oil outlet check valve 142 is connected to the second oil guide pipe 192.
When the hydraulic jack is used, firstly, the piston rod 122 moves upwards under the driving of the handle unit 121, the pressure in the pumping cylinder 123 is reduced, the oil inlet check valve 141 is opened, and the oil in the oil bag 15 and the first oil guide pipe 191 enters the pumping cylinder 123 from the oil inlet check valve 141. The piston rod 122 moves downward along with the movement of the handle unit 121, the pressure in the pumping cylinder 123 increases, the oil outlet check valve 142 opens, the oil in the pumping cylinder 123 flows through the oil outlet check valve 142 and the second oil guide pipe 192 to enter the expansion region 171, the volume of the oil in the expansion region 171 increases, the cylinder piston 172 is pushed to move upward along the second housing 102, the distance between the cylinder piston 172 and the control assembly 14 is fixed through the first oil guide pipe 191, and the base 20 is fixed on the ground when in use, therefore, when the volume of the expansion region 171 increases, the cylinder piston 172 is pushed to slide upward, the first housing 101 is further pushed to slide upward relative to the second housing 102, and the object to be supported is supported.
Further, the control assembly 14 further includes:
and the oil inlet end of the pressure relief check valve 143 is connected with the second oil guide pipe 192, and the oil outlet end of the pressure relief check valve 143 is connected with the oil bag 15.
After the hydraulic jack is used, pressure is required to be relieved so as to be stored and used next time, when pressure is not required to be relieved, the second end of the pressure relief push rod 132 is not contacted with the pressure relief check valve 143, when pressure is required to be relieved, one end of the pressure relief key 131 is lifted upwards, the other end of the pressure relief key 131 moves downwards around the hinged position of the pressure relief key 131 and the first shell, the pressure relief push rod 132 is driven to move downwards, the second end of the pressure relief push rod 132 opens the pressure relief check valve 143, and oil in the expansion area 171 flows through the second oil guide pipe 192 and the pressure relief check valve 143 to enter the oil bag 15. The volume of oil in the expansion region 171 decreases and the cylinder piston 172 moves downward along the second housing 102, completing the pressure relief of the hydraulic jack. In the exemplary embodiment, second oil conduit 192 has an oil return line 144 disposed thereon, and oil return line 144 is in communication with an oil inlet end of pressure relief check valve 143.
Further, the oil bladder 15 is an elastic oil bladder, and in an exemplary embodiment, the oil bladder 15 is made of a rubber material.
Further, the supporting member 11 is slidably connected to the first housing 101 through a sliding assembly 111. When different objects, for example, various brands of vehicle height, vehicle stress point height etc. are different, adjust the position at support piece 11 of supporting different object in-process, and then adjust the stress point to this hydraulic jack uses in supporting the object of co-altitude, the practicality is strong.
Further, as shown in fig. 5, the sliding assembly 111 includes:
a lifting adjusting ring 112, a lifting step 113 and a limiting block 114;
the lifting adjusting ring 112 is sleeved on the first casing 101, the lifting step 113 is arranged on the first casing 101, the limiting block 114 is fixedly connected with the supporting piece 11, and the limiting block 114 is hinged to the lifting adjusting ring 112 through a pin shaft 115. When the supporting member 11 needs to be fixed, the limiting block 114 is clamped in the groove of the lifting step 113 to fix the supporting member 11; when the height of the supporting member 11 needs to be adjusted, the limiting block 114 can rotate around the pin shaft 115 as an axis, the position of the lifting adjusting ring 112 is adjusted to a proper height, and the limiting block 114 is clamped into the groove of the lifting step 113 to be fixed again, so that the height adjustment of the supporting member 11 is completed.
Further, a non-slip mat 202 is installed under the base 20, and the non-slip mat 202 is installed on the lower surface of the bottom plate 203 to ensure safe and smooth use.
The hydraulic jack provided by the embodiment of the invention can expand and contract along with the increase and decrease of the oil amount in the oil bag 15 by arranging the oil bag 15 with the variable volume, and can keep the vacuum state in the hydraulic jack, so that the hydraulic jack is not influenced by the air leakage; meanwhile, the supporting piece 11 with adjustable height is arranged, the height of the supporting piece 11 can be adjusted in advance according to the height of the object to be supported, the problem that the lifting space of the hydraulic jack is large due to different heights of the object to be supported is solved, and time and labor are saved; by arranging the base 20 with the variable angle, the angle between the stressed object and the supporting point of the jack can be automatically adjusted, so that the stressed object can keep vertical stress.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that various changes, modifications and substitutions can be made without departing from the spirit and scope of the invention as defined by the appended claims. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A hydraulic jack, comprising:
the shell assembly comprises a first shell and a second shell, the first shell is sleeved on the second shell, and the first shell is connected with the second shell in a sliding mode;
the support piece is arranged on the side surface of the first shell and is used for supporting an object to be supported;
the pressurizing assembly and the pressure relief assembly are arranged at the upper end of the first shell;
the control assembly is fixedly arranged in the first shell;
the volume of the oil bag is variable according to the volume of oil liquid in the oil bag, the oil bag is arranged in the first shell, and the oil bag is positioned below the control assembly component and is fixedly connected with the control assembly component;
the oil supply area is arranged in the second shell, the oil supply area is positioned below the oil bag, the oil bag is separated from the oil supply area through a sealing element, and the sealing element is fixedly arranged at the first end of the second shell;
the telescopic assembly comprises a telescopic area and an oil cylinder piston, the telescopic area is positioned below the oil supply area, and the telescopic area is connected with the oil supply area through the oil cylinder piston;
the oil guide assembly comprises a first oil guide pipe and a second oil guide pipe, the first oil guide pipe is sleeved outside the second oil guide pipe, the first end of the first oil guide pipe and the first end of the second oil guide pipe are fixedly connected with the control assembly, the first oil guide pipe and the second oil guide pipe penetrate through the oil bag and the oil supply area, the second end of the first oil guide pipe is fixedly connected with the oil cylinder piston, the second end of the second oil guide pipe is communicated with the telescopic area, a first oil return hole and a second oil return hole are formed in the first oil guide pipe, the first oil return hole is communicated with the first oil guide pipe and the oil bag, and the second oil return hole is communicated with the first oil guide pipe and the oil supply area;
a base connected with the second housing second end.
2. The hydraulic jack of claim 1, wherein the pressurization assembly comprises:
the handle unit, the piston rod and the oil pumping cylinder;
the handle unit comprises a first handle, a second handle and a hand-held part, wherein a first end of the first handle is hinged with the first shell, a second end of the first handle is hinged with a first end of the second handle, a second end of the second handle is hinged with a first end of the piston rod, a third end of the second handle is fixedly connected with the hand-held part, and the piston rod is connected in the oil pumping cylinder in a sliding manner;
the oil pumping cylinder is connected with the control assembly, and when the piston rod moves up and down, the control assembly controls the flowing direction of oil in the hydraulic jack.
3. The hydraulic jack of claim 2, wherein the control assembly comprises:
an oil inlet check valve and an oil outlet check valve;
the oil inlet end of the oil inlet check valve is connected with the oil bag and the first oil guide pipe, and the oil outlet end of the oil inlet check valve is connected with the pumping cylinder;
the oil inlet end of the oil outlet check valve is connected with the oil pumping cylinder, and the oil outlet end of the oil outlet check valve is connected with the second oil guide pipe.
4. The hydraulic jack of claim 2, wherein the pressure relief assembly comprises:
a pressure relief key and a pressure relief push rod;
the pressure relief key is hinged with the first shell;
the pressure relief key is connected with the first end of the pressure relief push rod so as to enable the pressure relief push rod to move up and down;
the second end of the pressure relief push rod is connected with the control assembly, and when the pressure relief push rod moves up and down, the control assembly controls the flowing direction of oil inside the hydraulic jack.
5. The hydraulic jack of claim 4, wherein the control assembly further comprises:
and the oil inlet end of the pressure relief check valve is connected with the second oil guide pipe, and the oil outlet end of the pressure relief check valve is connected with the oil bag.
6. The hydraulic jack of claim 5, wherein the oil bladder is an elastomeric oil bladder.
7. The hydraulic jack of claim 6, wherein the support member is slidably coupled to the first housing by a slide assembly.
8. The hydraulic jack of claim 7, wherein the slide assembly comprises:
the lifting adjusting ring, the lifting step and the limiting block;
the lifting adjusting ring is sleeved on the first shell in a sliding mode, the lifting steps are arranged on the first shell, and the limiting block is fixedly connected with the supporting piece.
9. The hydraulic jack of claim 8, wherein the stop block is hinged to the lift adjustment ring by a pin.
10. The hydraulic jack of claim 9, wherein the base is connected to the second end of the second housing by a ball joint, and a non-slip mat is mounted under the base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911362314.5A CN111017786A (en) | 2019-12-26 | 2019-12-26 | Hydraulic jack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911362314.5A CN111017786A (en) | 2019-12-26 | 2019-12-26 | Hydraulic jack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111017786A true CN111017786A (en) | 2020-04-17 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911362314.5A Pending CN111017786A (en) | 2019-12-26 | 2019-12-26 | Hydraulic jack |
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| CN (1) | CN111017786A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113277437A (en) * | 2021-05-25 | 2021-08-20 | 杭州天铭科技股份有限公司 | Hydraulic jack |
| CN114084834A (en) * | 2021-11-26 | 2022-02-25 | 深圳扬宁汽车配件有限公司 | Hydraulic jack |
| CN115367655A (en) * | 2021-05-20 | 2022-11-22 | 陆兆金 | Multifunctional hydraulic universal jack |
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| USD866911S1 (en) * | 2017-06-16 | 2019-11-12 | Arb Corporation Limited | Jack |
| CN211419434U (en) * | 2019-12-26 | 2020-09-04 | 陆兆金 | Hydraulic jack |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115367655A (en) * | 2021-05-20 | 2022-11-22 | 陆兆金 | Multifunctional hydraulic universal jack |
| CN113277437A (en) * | 2021-05-25 | 2021-08-20 | 杭州天铭科技股份有限公司 | Hydraulic jack |
| CN114084834A (en) * | 2021-11-26 | 2022-02-25 | 深圳扬宁汽车配件有限公司 | Hydraulic jack |
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