CN114655878A - Attached safety device of hydraulic jack - Google Patents
Attached safety device of hydraulic jack Download PDFInfo
- Publication number
- CN114655878A CN114655878A CN202210480732.XA CN202210480732A CN114655878A CN 114655878 A CN114655878 A CN 114655878A CN 202210480732 A CN202210480732 A CN 202210480732A CN 114655878 A CN114655878 A CN 114655878A
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- China
- Prior art keywords
- hydraulic jack
- top disc
- safety device
- disc
- supporting pieces
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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
- B66F3/30—Constructional features with positive brakes or locks
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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 relates to an auxiliary safety device of a hydraulic jack. The hydraulic jack attached safety device comprises: the extending end of a piston of the hydraulic jack can prop against the top disc and drive the top disc to synchronously move so as to lift an object above the top disc; the supporting mechanism is arranged below the top disc and can be abutted against the top disc and comprises two supporting pieces which are oppositely arranged, the two supporting pieces can be close to and far away from each other, a plurality of tooth parts which are sequentially arranged in the vertical direction are formed on the inner sides of the supporting pieces, and when at least one tooth part of each of the two supporting pieces is matched with a shell positioned on the periphery of a piston in the hydraulic jack, an object positioned above the top disc can apply pressure to the shell through the top disc and the supporting mechanism; and the adjusting mechanism is used for adjusting the distance between the two supporting pieces. Utilize hydraulic jack subsidiary safety device uses with the cooperation of hydraulic jack and lifts the heavy object jointly, not only improves result of use, safety in utilization, can also prolong hydraulic jack's life.
Description
Technical Field
The invention relates to the technical field of lifting devices, in particular to an auxiliary safety device of a hydraulic jack.
Background
The general hydraulic jack is composed of a base, a shell (casing), an oil cylinder, a piston, an oil pipe (oil way) and an electric (manual) hydraulic system, and the appearance size and the piston jacking height of the jack are different when the type and the specification are different. However, due to the large pressure of the weight and the inertia of the hydraulic system, after the hydraulic jack lifts the weight to a required height, the piston may descend by a certain height, which is not ideal for use. Moreover, when the hydraulic system is in high-pressure and heavy-load work for a long time, hydraulic oil is turbid due to high-frequency action, and the hydraulic system is easy to block.
Disclosure of Invention
In view of the above, the present invention has been developed to provide a hydraulic jack attachment safety device that overcomes, or at least partially solves, the above-mentioned problems.
The hydraulic jack attaches safety device includes:
the extending end of a piston of the hydraulic jack can prop against the top disc and drive the top disc to synchronously move so as to lift an object above the top disc;
the supporting mechanism is arranged below the top disc and can prop against the top disc and comprises two supporting pieces which are oppositely arranged, the two supporting pieces can be close to each other and far away from each other, a plurality of tooth parts which are sequentially arranged in the vertical direction are formed on the inner sides of the supporting pieces, and when at least one tooth part of each of the two supporting pieces is matched with a shell positioned on the periphery of a piston in the hydraulic jack, an object positioned above the top disc can apply pressure to the shell through the top disc and the supporting mechanism;
and the adjusting mechanism is used for adjusting the distance between the two supporting pieces.
In one embodiment, the bottom of the top disk is formed with a recess capable of receiving a protruding end of the piston.
In one embodiment, the teeth of the support are capable of meshing with external teeth formed in a housing of the hydraulic jack located on the outer periphery of the piston.
In an embodiment, the adjusting mechanism comprises a rotary disc, two sliding blocks and two connecting rods, wherein the two sliding blocks are oppositely arranged and matched with a guide groove formed in the top disc, the supporting piece is fixedly connected with the sliding blocks, and the two sliding blocks are driven to be close to each other and be away from each other through the corresponding connecting rods when the rotary disc rotates relative to the top disc.
In one embodiment, the turntable is disposed within a circular mounting slot formed by the upper surface of the top plate being recessed.
In one embodiment, the adjusting mechanism further comprises a lever, one end of which can pass through a through hole formed in the top plate and act on the rotary plate for driving the rotary plate to rotate relative to the top plate.
In one embodiment, the outer edge of the top plate extends upward to form an action portion capable of abutting against an object above the top plate.
The auxiliary safety device of the hydraulic jack is matched with the hydraulic jack to lift heavy objects together, so that the use effect and the use safety are improved, and the service life of the hydraulic jack can be prolonged.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the application, are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the principles of the application. It is obvious that the drawings in the following description are only some embodiments of the application, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:
FIG. 1 is a schematic structural diagram of an embodiment of a hydraulic jack auxiliary safety device according to the present invention;
FIG. 2 is a schematic view of the attached safety device of the hydraulic jack of FIG. 1 from another perspective;
FIG. 3 is a cross-sectional view A-A of the hydraulic jack attachment safety device of FIG. 2;
FIG. 4 is a schematic structural view of the top plate of FIG. 1;
FIG. 5 is a cross-sectional view B-B of the top disk of FIG. 4;
FIG. 6 is a schematic structural view of the support member of FIG. 1;
FIG. 7 is a cross-sectional C-C view of the support member of FIG. 6;
fig. 8 is a schematic structural view of the joystick of fig. 1.
Description of reference numerals: 1. a top tray; 2. a support member; 3. a tooth portion; 4. a groove; 5. a clamping portion; 6. a turntable; 7. a slider; 8. a connecting rod; 9. a guide groove; 10. a circular mounting groove; 11. an action part; 12. a control lever; 13. and a through hole.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below are exemplary embodiments for explaining the present invention with reference to the drawings and should not be construed as limiting the present invention, and those skilled in the art can make various changes, modifications, substitutions and alterations to the embodiments without departing from the principle and spirit of the present invention, the scope of which is defined by the claims and their equivalents.
The terms "central," "longitudinal," "lateral," "length," "upper," "lower," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," "circumferential," and the like, referred to or as may be referred to in the description of the invention, are used in the indicated orientation or positional relationship indicated in the drawings for convenience in describing the invention and for simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the invention. Furthermore, the terms "comprises," "comprising," and any variations thereof, are intended to cover non-exclusive inclusions.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted" and "connected" are to be interpreted broadly, e.g., as being either fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
A hydraulic jack attachment safety device according to an embodiment of the present invention will be described with reference to the accompanying drawings.
Referring to fig. 1 to 3, the hydraulic jack auxiliary safety device according to the embodiment of the invention comprises a top plate 1, a supporting mechanism and an adjusting mechanism.
The extending end of the piston of the hydraulic jack can prop against the jacking disc 1 and drive the jacking disc 1 to synchronously move so as to jack an object above the jacking disc 1. The supporting mechanism is arranged below the top disc 1 and can push against the top disc 1, and comprises two supporting pieces 2 which are oppositely arranged, the two supporting pieces 2 can be close to and away from each other, a plurality of tooth parts 3 which are sequentially arranged in the vertical direction are formed on the inner sides of the supporting pieces 2, and when at least one tooth part 3 of each supporting piece 2 is matched with a shell which is arranged on the periphery of a piston in the hydraulic jack, an object which is arranged above the top disc 1 can apply pressure to the shell through the top disc 1 and the supporting mechanism. The adjusting mechanism is used for adjusting the distance between the two supporting pieces 2.
The auxiliary safety device of the hydraulic jack is matched with the hydraulic jack to lift heavy objects, the matched auxiliary safety device of the hydraulic jack can be firstly placed on the hydraulic jack, and the top disk 1 is positioned below the weight to be lifted, the hydraulic jack starts to work, the top disk 1 and the supporting mechanism synchronously ascend along with the extending end of the piston, when the weight is lifted to the required height, the distance between the two supporting pieces 2 is reduced, that is, the two supporting members 2 are moved closer to each other until at least one tooth portion 3 of each of the two supporting members 2 engages with a housing of the hydraulic jack located at the outer periphery of the piston, and thereafter, the hydraulic system of the hydraulic jack stops working, part of the gravity of the heavy object is transmitted to the shell of the hydraulic jack through the jacking disc 1 and the supporting piece 2, and the other part of the gravity of the heavy object is transmitted to the piston through the jacking disc 1, namely the heavy object is jacked by the auxiliary safety device of the hydraulic jack and the hydraulic jack together.
After the heavy object is lifted to the preset height, at least one tooth part 3 of each of the two supporting pieces 2 is matched with the shell positioned on the periphery of the piston in the hydraulic jack, and the height of the heavy object is locked, so that a hydraulic system of the hydraulic jack stops working, the falling height of the heavy object cannot exceed the preset value, and an ideal using effect is achieved. Meanwhile, the hydraulic jack is prevented from working under high pressure and heavy load for a long time, and the blockage of a hydraulic system is reduced.
When the hydraulic jack needs to be dismounted, the hydraulic system pressurizes, the piston extending end drives the top disc 1 and the supporting mechanism to synchronously ascend for a set height, such as 5-10 mm, then the distance between the two supporting pieces 2 is increased, namely the two supporting pieces 2 are kept away from each other until the tooth parts 3 of the two supporting pieces 2 are separated from the shell, located on the periphery of the piston, in the hydraulic jack, then the hydraulic system depressurizes, the piston resets, and the whole weight jacking process is finished.
Therefore, the auxiliary safety device of the hydraulic jack is matched with the hydraulic jack to lift the heavy object together, so that the use effect and the use safety are improved, and the service life of the hydraulic jack can be prolonged.
Referring to fig. 5, a groove 4 capable of accommodating the extending end of the piston is formed at the bottom of the top plate 1, the groove 4 can be matched with the shape of the extending end of the piston, if the section of the extending end of the piston is circular, the section of the groove 4 is also circular, and the inner diameter of the groove 4 is slightly larger than the outer diameter of the piston, so that a matched auxiliary safety device of the hydraulic jack can be quickly and accurately placed on the hydraulic jack.
In one embodiment, the hydraulic jack has a generally cylindrical shape outside of a housing located around the piston, and the housing has a plurality of external teeth formed on the outside thereof and arranged in a vertical order, and the pitch of the external teeth is the same. Correspondingly, referring to fig. 6 and 7, in the hydraulic jack auxiliary safety device adapted to the hydraulic jack, the inner wall of the clamping portion 5 matched with the shell in the supporting member 2 is arc-shaped, a plurality of tooth portions 3 sequentially arranged in the vertical direction are formed on the inner wall, the tooth pitch of each tooth portion 3 is the same, and the tooth pitch of each tooth portion 3 is the same as the tooth pitch of the outer tooth. When the two supporting pieces 2 can approach each other, the tooth parts 3 of the supporting pieces 2 can be meshed with external teeth formed on a shell positioned on the periphery of a piston in the hydraulic jack.
Returning to fig. 1 to 3, the adjusting mechanism includes a rotary table 6, two sliding blocks 7, and two connecting rods 8, the two sliding blocks 7 are disposed opposite to each other and are matched with a guide groove 9 provided in the top plate 1, the supporting member 2 is fixedly connected to the sliding blocks 7, and if the supporting member 2 is fixedly connected to the sliding blocks 7 through bolts, the two sliding blocks 7 are driven to approach each other and be away from each other through the corresponding connecting rods 8 when the rotary table 6 rotates relative to the top plate 1, and then the two supporting members 2 are driven to approach each other and be away from each other. For example, when the rotating disc 6 rotates clockwise by a certain angle relative to the top disc 1, the two sliding blocks 7 move away from each other, so as to urge the two supporting members 2 to move away from each other; when the rotating disc 6 rotates counterclockwise by a certain angle relative to the top disc 1, the two sliding blocks 7 approach each other, and further the two supporting members 2 approach each other. Of course, the adjusting mechanism may also adopt other suitable structures, which are not listed here.
Preferably, the rotary plate 6 is disposed in a circular mounting groove 10 formed by recessing the upper surface of the top plate 1. The inner diameter of the circular mounting groove 10 is slightly larger than the outer diameter of the rotary table 6, so that the rotary table 6 can rotate more stably.
Preferably, the outer edge of the top disk 1 extends upwards to form an action part 11 capable of abutting against an object above the top disk 1, and the action part 11 is arranged to prevent a heavy object from abutting against the rotary disk 6, the connecting rod 8 and the sliding block 7, so that the heavy object is prevented from influencing the work of the adjusting mechanism.
In one embodiment, the adjusting mechanism further comprises a lever 12, and one end of the lever 12 can penetrate through a through hole 13 formed in the top plate 1 and act on the rotating plate 6 to drive the rotating plate 6 to rotate relative to the top plate 1. Specifically, the rotating disc 6 is provided with a mounting hole, one end of the operating rod 12 can penetrate through a through hole 13 formed in the top disc 1 and then be inserted into the mounting hole, and the operating rod can be swung to enable the rotating disc 6 to rotate clockwise by a certain angle relative to the top disc 1.
Claims (7)
1. A hydraulic jack attachment safety device, comprising:
the extending end of a piston of the hydraulic jack can prop against the top disc and drive the top disc to synchronously move so as to lift an object above the top disc;
the supporting mechanism is arranged below the top disc and can prop against the top disc and comprises two supporting pieces which are oppositely arranged, the two supporting pieces can be close to each other and far away from each other, a plurality of tooth parts which are sequentially arranged in the vertical direction are formed on the inner sides of the supporting pieces, and when at least one tooth part of each of the two supporting pieces is matched with a shell positioned on the periphery of a piston in the hydraulic jack, an object positioned above the top disc can apply pressure to the shell through the top disc and the supporting mechanism;
and the adjusting mechanism is used for adjusting the distance between the two supporting pieces.
2. The hydraulic jack attachment safety device of claim 1, wherein: the bottom of the top disk is formed with a groove capable of accommodating the protruding end of the piston.
3. The hydraulic jack attachment safety device of claim 1, wherein: the teeth of the support member can be engaged with external teeth formed on a housing of the hydraulic jack, which is located at the outer periphery of the piston.
4. The hydraulic jack attachment safety device of claim 1, wherein: the adjusting mechanism comprises a rotary table, two sliding blocks and two connecting rods, the sliding blocks are oppositely arranged and matched with a guide groove formed in the top disc, the supporting piece is fixedly connected with the sliding blocks, and the two sliding blocks are driven to be close to each other and be away from each other through the corresponding connecting rods when the rotary table rotates relative to the top disc.
5. The hydraulic jack attachment safety device of claim 4, wherein: the rotary disc is arranged in a circular mounting groove formed by inwards recessing the upper surface of the top disc.
6. The hydraulic jack attachment safety device of claim 5, wherein: the adjusting mechanism further comprises a control rod, and one end of the control rod can penetrate through a through hole formed in the top disc and act on the rotary disc to drive the rotary disc to rotate relative to the top disc.
7. The hydraulic jack attachment safety device of claim 4, wherein: the outer edge of the top plate extends upwards to form an acting part capable of propping against an object above the top plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210480732.XA CN114655878A (en) | 2022-05-05 | 2022-05-05 | Attached safety device of hydraulic jack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210480732.XA CN114655878A (en) | 2022-05-05 | 2022-05-05 | Attached safety device of hydraulic jack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114655878A true CN114655878A (en) | 2022-06-24 |
Family
ID=82037388
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210480732.XA Pending CN114655878A (en) | 2022-05-05 | 2022-05-05 | Attached safety device of hydraulic jack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114655878A (en) |
-
2022
- 2022-05-05 CN CN202210480732.XA patent/CN114655878A/en active Pending
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