CN211496799U - Directional lifting platform applied to vehicle maintenance - Google Patents
Directional lifting platform applied to vehicle maintenance Download PDFInfo
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- CN211496799U CN211496799U CN201922295284.2U CN201922295284U CN211496799U CN 211496799 U CN211496799 U CN 211496799U CN 201922295284 U CN201922295284 U CN 201922295284U CN 211496799 U CN211496799 U CN 211496799U
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Abstract
The utility model discloses a directional lifting platform applied to vehicle maintenance, which comprises a jacking cylinder body, a separating plate which is vertically arranged is fixed in the jacking cylinder body, a space is arranged between the separating plate and the upper side wall of the inner cavity of the jacking cylinder body, and a space is arranged between the separating plate and the lower side wall of the inner cavity of the jacking cylinder body, the separating plate separates the inner cavity of the jacking cylinder body into a regulation cavity and a propulsion cavity which are mutually communicated, a lifting piston which is positioned in the propulsion cavity is arranged between the separating plate and the inner cavity side wall of the jacking cylinder body, the propulsion cavity is separated into a pressurized cavity and a pressurized cavity by the lifting piston, a valve body which is positioned in the regulation cavity is arranged between the separating plate and the inner cavity side wall of the jacking cylinder body, the valve body is used for controlling the on-off of gas in the regulation cavity and, when the valve body is in an off state, the pressure cavity and the regulation cavity are separated into independent cavities which are not communicated with each other.
Description
Technical Field
The utility model relates to a mechanical maintenance equipment, in particular to carry out the equipment of maintenance to the vehicle.
Background
With the rapid development of economy, various automobiles enter thousands of households, great convenience is brought to the clothes and the residents, the automobiles are inevitably maintained in the using process, wherein the clutch is required to be overhauled in the actual maintenance and inspection, the performance of the clutch is also a key part influencing the normal transmission of the automobile power, the existing clutch maintenance mode is usually operated by utilizing a movable workbench and with the help of manpower, the physical strength consumed by the clutch maintenance mode is large, and the efficiency is low.
Disclosure of Invention
In order to solve the defects in the prior art, the utility model aims to provide a maintenance platform which is convenient to use and can have larger expansion amount in the vertical direction; the utility model discloses a high-pressure gas's thrust difference carries out the slow speed and extends, can carry out effective work under the condition of other energy such as not consume electric power.
In order to achieve the technical purpose, the technical scheme adopted by the utility model is as follows.
A directional lifting platform applied to vehicle maintenance comprises a lifting cylinder body (10), wherein the lifting cylinder body (10) is of a hollow structure, high-pressure gas is filled in the lifting cylinder body (10), a separating plate (20) arranged in the vertical direction is fixed in the lifting cylinder body (10), a gap is arranged between the separating plate (20) and the upper side wall of an inner cavity of the lifting cylinder body (10), and a gap is arranged between the separating plate and the lower side wall of the inner cavity of the lifting cylinder body (10), the separating plate (20) divides the inner cavity of the lifting cylinder body (10) into a regulating cavity and a propelling cavity which are communicated with each other, a lifting piston (41) located in the propelling cavity is arranged between the separating plate (20) and the side wall of the inner cavity of the lifting cylinder body (10), the lifting piston (41) can slide in the propelling cavity along the length direction of the separating plate (20), the lifting piston (41) divides the propelling cavity into a pressure cavity and a pressure cavity, and a piston rod (, the piston rod (42) upwards extends to the outside of the jacking cylinder body (10), a valve body (30) located in the regulation and control cavity is installed between the separating plate (20) and the inner cavity side wall of the jacking cylinder body (10), the valve body (30) is used for controlling the on-off of gas in the regulation and control cavity and is divided into a connection state and a disconnection state, when the valve body (30) is in the connection state, the pressure cavity can be communicated with the pressure applying cavity through the regulation and control cavity, and when the valve body (30) is in the disconnection state, the pressure applying cavity and the regulation and control cavity are separated into independent cavities which are not communicated with.
The technical scheme is further improved and optimized.
An upper limiting plate (21) extending into the propulsion chamber is arranged between the upper end of the separating plate (20) and the inner side wall of the jacking cylinder body wall, an avoiding opening for a piston rod (42) to penetrate through is formed in the center of the upper limiting plate (21), and the diameter of the opening of the upper limiting plate (21) is larger than that of the piston rod (42).
The technical scheme is further improved and optimized.
The lower end part of the separating plate (20) is fixedly provided with a lower limiting plate (22) extending into the propelling cavity, and the interval between the lower limiting plate (22) and the side wall of the inner cavity of the jacking cylinder body (10) is smaller than the diameter of the lifting piston (41).
The technical scheme is further improved and optimized.
The valve body (30) comprises a valve body piston (31) rotatably arranged in the regulation and control chamber, a torsion bar (32) which is coaxially arranged with the valve body piston (31) and upwards extends to the outside of the jacking cylinder body (10) is fixed on the upper end surface of the valve body piston (31), and a knob used for transmitting torsion to the torsion bar (32) is installed at the upper suspension end part of the torsion bar (32); be provided with intercommunication air flue (23) on separator plate (20), the cavity that the interval between separator plate (20) and jacking cylinder body (10) up end becomes between the terminal surface is put through with the one end of intercommunication air flue (23), the other end interface of intercommunication air flue (23) is covered by valve body piston (31), central air flue has been seted up on valve body piston (31), central air flue is including the air flue a, the air flue b of mutual switch-on, air flue a arranges and air flue a is corresponding with intercommunication air flue (23) other end interface along the radial extension of valve body piston (31), air flue b extends downwards and puts through with the cavity of valve body piston (31) lower extreme along the central axis of valve body piston (31).
The technical scheme is further improved and optimized.
The upper end surface of the jacking cylinder body (10) is provided with a limiting groove which is sleeved outside the torsion bar (32) and is coaxially arranged with the torsion bar (32), the limiting groove is of an arc structure, one end of the limiting groove is a connection limiting end, the other end of the limiting groove is a disconnection limiting end, a stroke rod which extends along the radial direction of the torsion bar (32) is fixed on the torsion bar, the stroke rod is matched with the limiting groove, the stroke rod can slide in the limiting groove, and when the stroke rod moves to the connection limiting end of the limiting groove, the valve body (30) is in a connection state; when the stroke rod moves to the port limiting end of the limiting groove, the valve body (30) is in a disconnected state.
The technical scheme is further improved and optimized.
A restriction plate which is positioned in the regulation and control chamber and used for restricting the position of the valve body piston (31) is arranged between the separation plate (20) and the side wall of the inner cavity of the jacking cylinder body; the restraint plate is an annular plate body and is positioned on the upper end face of the valve body piston (31), and the valve body piston (31) is attached to the annular plate body.
The technical scheme is further improved and optimized.
Sealing rubber rings are arranged at the contact positions of the torsion bar (32) and the piston rod (42) and the jacking cylinder body (10).
The technical scheme is further improved and optimized.
The upper end center department of piston rod (42) sets up rather than the shrink cavity (43) that the coaxial line arranged, and the upper end of piston rod (42) is fixed to be provided with and extends bearing platform (44) that sets up along the horizontal direction, and the inside wall of shrink cavity (43) is provided with the screw thread to shrink cylinder body (43) threaded connection has screw rod (45) along vertical direction setting, and the top terminal surface of screw rod (45) is fixed with spacing frame (46).
In the further improvement and optimization of the technical scheme, the high-pressure gas is nitrogen.
Drawings
The present specification includes the following figures, which illustrate the contents, respectively.
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a partial structural schematic view of the jacking cylinder body.
Fig. 3 is a schematic structural view of the valve body.
Detailed Description
The following detailed description of the embodiments of the present invention will be given with reference to the accompanying drawings for a purpose of helping those skilled in the art to more fully, accurately and deeply understand the concept and technical solution of the present invention and to facilitate its implementation.
As shown in fig. 1-3, the directional lifting platform applied to vehicle maintenance comprises a lifting cylinder 10, the lifting cylinder 10 is hollow and filled with high-pressure gas, preferably nitrogen gas, a separating plate 20 is fixed in the lifting cylinder 10 and arranged in a vertical direction, a space is arranged between the separating plate 20 and an upper side wall of an inner cavity of the lifting cylinder 10, and a space is arranged between the separating plate 20 and a lower side wall of the inner cavity of the lifting cylinder 10, the separating plate 20 divides the inner cavity of the lifting cylinder 10 into a control chamber and a propulsion chamber which are communicated with each other, a lifting piston 41 located in the propulsion chamber is installed between the separating plate 20 and the side wall of the inner cavity of the lifting cylinder 10, the lifting piston 41 can slide in the propulsion chamber along the length direction of the separating plate 20, the lifting piston 41 divides the propulsion chamber into a pressure-receiving chamber and a pressure-applying chamber, a piston rod 42 arranged coaxially with the lifting piston 41 is installed on, the piston rod 42 extends upwards to the outside of the jacking cylinder body 10, the valve body 30 located in the regulating and controlling cavity is installed between the separating plate 20 and the side wall of the inner cavity of the jacking cylinder body 10, the valve body 30 is used for controlling the on-off of air in the regulating and controlling cavity and is divided into a connected state and a disconnected state, when the valve body 30 is in the connected state, the pressure cavity can be communicated with the pressure applying cavity through the regulating and controlling cavity, and when the valve body 30 is in the disconnected state, the pressure applying cavity and the regulating and controlling cavity are separated into independent cavities which are.
The utility model discloses a thrust that high-pressure gas applyed to lift piston 42 is different, thereby control lift piston 42 in ascending motion of vertical direction, concretely, assume that high-pressure gas 'S pressure value is P, the area of the lower terminal surface of lift piston 42 is S1, the area of the cross section of piston rod 42 is S2, when high-pressure gas is F1= PS1 to the ascending thrust of lift piston, high-pressure gas is F2= P (S1-S2) to the downward thrust of lift piston, the effective thrust of lift piston in vertical direction is F = F1-F2= PS 1-P (S1-S2) = PS2, when valve body 30 is in the switch-on state, lift piston 41 can be in the vertical upward slow-speed motion under high-pressure gas' S effect; when the valve body 30 is in the off state, since the high-pressure gas cannot be further compressed under the action of the normal pressure, at this time, the pressure receiving chamber and the pressure applying chamber are turned off and on, and the lifting piston 41 keeps the current position thereof from being displaced.
More preferably, as shown in fig. 1, an upper limiting plate 21 extending into the propulsion chamber is disposed between the upper end of the separating plate 20 and the inner side wall of the jacking cylinder wall, an avoiding opening for the piston rod 42 to pass through is disposed at the center of the upper limiting plate 21, and the opening diameter of the upper limiting plate 21 is larger than the diameter of the piston rod 42.
The lower end of the separation plate 20 is fixedly provided with a lower limit plate 22 extending into the propulsion chamber, and the interval between the lower limit plate 22 and the side wall of the inner cavity of the jacking cylinder 10 is smaller than the diameter of the lifting piston 41.
The upper limiting plate and the lower limiting plate are arranged in the propelling chamber to restrict the movement range of the lifting piston 41, so that the lifting piston 41 is prevented from moving to the upper top surface/lower bottom surface of the inner cavity of the jacking cylinder body, the top surface/bottom surface of the lifting piston is completely contacted, and the pressure loss condition is caused; if the situation happens, the equipment can be caused to be in failure.
As shown in fig. 1 and 3, the valve body 30 includes a valve body piston 31 rotatably disposed in the regulation and control chamber, a torsion bar 32 coaxially disposed with the valve body piston 31 and extending upward to the outside of the jacking cylinder 10 is fixed on the upper end surface of the valve body piston 31, and a knob for transmitting a torsion force to the torsion bar 32 is mounted on the upper suspension end of the torsion bar 32; the separating plate 20 is provided with a communicating air passage 23, a cavity formed by the separating plate 20 and the upper end surface of the jacking cylinder 10 is communicated with one end of the communicating air passage 23, the other end interface of the communicating air passage 23 is covered by a valve body piston 31, the valve body piston 31 is provided with a central air passage, the central air passage comprises an air passage a and an air passage b which are communicated with each other, the air passage a is arranged along the radial extension of the valve body piston 31 and corresponds to the other end interface of the communicating air passage 23, and the air passage b extends downwards along the central axis of the valve body piston 31 and is communicated with a cavity at the lower end of the valve body.
The utility model discloses in the rotation type structural design through valve body 30, improvement sealing performance that can be further to when manual effort is exerted to valve body 30, it is more convenient.
The upper end surface of the jacking cylinder body 10 is provided with a limiting groove which is sleeved outside the torsion bar 32 and is coaxially arranged with the torsion bar 32, the limiting groove is of an arc structure, one end of the limiting groove is a connection limiting end, the other end of the limiting groove is a disconnection limiting end, a stroke rod which extends along the radial direction of the torsion bar 32 is fixed on the torsion bar, the stroke rod is matched with the limiting groove, the stroke rod can slide in the limiting groove, and when the stroke rod moves to the connection limiting end of the limiting groove, the valve body 30 is in a connection state; when the stroke rod moves to the port limiting end of the limiting groove, the valve body 30 is in a disconnected state; through the matching of the stroke rod and the limiting groove, the position state of the valve body 30 can be accurately judged, and the switching between the connection state and the disconnection state can be quickly realized.
A restraining plate which is positioned in the regulation and control chamber and used for restraining the position of the valve body piston 31 is arranged between the separating plate 20 and the side wall of the inner cavity of the jacking cylinder body; the restraint plate is an annular plate body and is positioned on the upper end face of the valve body piston 31, and the valve body piston 31 is attached to the annular plate body.
The valve body piston 31 is located in the lifting cylinder body and is in contact with high-pressure gas, the valve body piston 31 can displace in the axial direction under the action of the high-pressure gas, and under the combined action of the stroke rod and the constraint plate, the valve body piston 31 cannot displace in the axial direction, so that the normal work of the valve body 30 is guaranteed, and the on-off between the pressurized cavity and the regulation and control cavity is accurately adjusted.
In order to further improve the sealing performance between the torsion bar 32 and the piston rod 42 and the jacking cylinder 10, as shown in fig. 1 and 2, sealing rubber rings are installed at the contact positions of the torsion bar 32 and the piston rod 42 and the jacking cylinder 10.
The upper end center of the piston rod 42 is provided with a contraction cavity 43 which is coaxial with the piston rod 42, the upper end of the piston rod 42 is fixedly provided with a pressure-bearing platform 44 which extends along the horizontal direction, the inner side wall of the contraction cavity 43 is provided with threads, the contraction cylinder 43 is in threaded connection with a screw rod 45 which is arranged along the vertical direction, and the top end surface of the screw rod 45 is fixedly provided with a limit frame 46.
The utility model discloses in, the outwards extension of lift piston 41 is realized according to the promotion of high-pressure gas in jacking cylinder body 10, when lift piston 41 needs downstream and realizes reseing, can lay the heavy object on pressure-bearing platform 44, and the quality of hypothesis heavy object is m, can know according to formula Fa = mg, is in the switch-on state when valve body 30, and Fa > F time, can realize automatic slow shrink under the effect of gravity.
The invention is described above with reference to the accompanying drawings. It is to be understood that the specific implementations of the invention are not limited in this respect. Various insubstantial improvements are made by adopting the method conception and the technical scheme of the invention; the present invention is not limited to the above embodiments, and can be modified in various ways.
Claims (9)
1. A directional lifting platform applied to vehicle maintenance comprises a lifting cylinder body (10), wherein the lifting cylinder body (10) is internally provided with a hollow structure and filled with high-pressure gas, and the directional lifting platform is characterized in that a separating plate (20) which is arranged in the vertical direction is fixed in the lifting cylinder body (10), a gap is arranged between the separating plate (20) and the upper side wall of an inner cavity of the lifting cylinder body (10), and a gap is arranged between the separating plate and the lower side wall of the inner cavity of the lifting cylinder body (10), the separating plate (20) divides the inner cavity of the lifting cylinder body (10) into a regulating chamber and a propelling chamber which are communicated with each other, a lifting piston (41) which is positioned in the propelling chamber is arranged between the separating plate (20) and the side wall of the inner cavity of the lifting cylinder body (10), the lifting piston (41) can slide in the propelling chamber along the length direction of the separating plate (20), the, the upper end surface of the lifting piston (41) is provided with a piston rod (42) which is coaxially arranged with the lifting piston, the piston rod (42) upwards extends to the outside of the jacking cylinder body (10), a valve body (30) which is positioned in a regulation and control cavity is arranged between the separating plate (20) and the inner cavity side wall of the jacking cylinder body (10), the valve body (30) is used for controlling the on-off of gas in the regulation and control cavity and is divided into a connection state and a disconnection state, when the valve body (30) is in the connection state, the pressure cavity can be communicated with the pressure applying cavity through the regulation and control cavity, and when the valve body (30) is in the disconnection state, the pressure applying cavity and the regulation and.
2. The directional lifting platform applied to vehicle maintenance according to claim 1, characterized in that an upper limiting plate (21) extending into the propulsion chamber is arranged between the upper end of the separating plate (20) and the inner side wall of the wall body of the jacking cylinder, an avoiding opening for the piston rod (42) to pass through is arranged at the center of the upper limiting plate (21), and the opening diameter of the upper limiting plate (21) is larger than the diameter of the piston rod (42).
3. The directional lifting platform applied to vehicle maintenance according to claim 1 or 2, characterized in that the lower end of the separation plate (20) is fixedly provided with a lower limiting plate (22) extending into the propulsion chamber, and the interval between the lower limiting plate (22) and the side wall of the inner cavity of the jacking cylinder (10) is smaller than the diameter of the lifting piston (41).
4. The directional lifting platform for vehicle maintenance according to claim 1, wherein the valve body (30) comprises a valve body piston (31) rotatably disposed in the control chamber, a torsion bar (32) coaxially disposed with the valve body piston (31) and extending upward to the outside of the lifting cylinder (10) is fixed to the upper end surface of the valve body piston (31), and a knob for transmitting a torsion force to the torsion bar (32) is installed at the upper suspended end of the torsion bar (32); be provided with intercommunication air flue (23) on separator plate (20), the cavity that the interval between separator plate (20) and jacking cylinder body (10) up end becomes between the terminal surface is put through with the one end of intercommunication air flue (23), the other end interface of intercommunication air flue (23) is covered by valve body piston (31), central air flue has been seted up on valve body piston (31), central air flue is including the air flue a, the air flue b of mutual switch-on, air flue a arranges and air flue a is corresponding with intercommunication air flue (23) other end interface along the radial extension of valve body piston (31), air flue b extends downwards and puts through with the cavity of valve body piston (31) lower extreme along the central axis of valve body piston (31).
5. The directional lifting platform applied to vehicle maintenance according to claim 4, characterized in that the upper end surface of the jacking cylinder (10) is provided with a limit groove sleeved outside the torsion bar (32) and coaxially arranged with the torsion bar (32), the limit groove is of an arc structure, one end of the limit groove is an on limit end, the other end of the limit groove is an off limit end, a stroke rod extending along the radial direction of the torsion bar (32) is fixed on the torsion bar and matched with the limit groove, the stroke rod can slide in the limit groove, and when the stroke rod moves to the on limit end of the limit groove, the valve body (30) is in an on state; when the stroke rod moves to the port limiting end of the limiting groove, the valve body (30) is in a disconnected state.
6. The directional lifting platform applied to vehicle maintenance according to claim 4, characterized in that a restraining plate located in the regulation chamber and used for restraining the position of the valve body piston (31) is arranged between the separating plate (20) and the side wall of the inner cavity of the jacking cylinder body; the restraint plate is an annular plate body and is positioned on the upper end face of the valve body piston (31), and the valve body piston (31) is attached to the annular plate body.
7. The directional lifting platform applied to vehicle maintenance according to claim 1 or 2 or 4 or 5 or 6, characterized in that sealing rubber rings are installed at the contact positions of the torsion bar (32) and the piston rod (42) and the jacking cylinder (10).
8. The directional lifting platform applied to vehicle maintenance according to claim 1, 2, 4, 5 or 6, characterized in that a contraction cavity (43) coaxial with the piston rod (42) is formed in the center of the upper end of the piston rod (42), a pressure bearing platform (44) extending along the horizontal direction is fixedly arranged at the upper end of the piston rod (42), threads are arranged on the inner side wall of the contraction cavity (43), a screw rod (45) arranged along the vertical direction is connected to the contraction cavity (43) in a threaded manner, and a limit frame (46) is fixed on the top end face of the screw rod (45).
9. A directional lifting platform for vehicle maintenance according to claim 1 or 2 or 4 or 5 or 6, wherein the high pressure gas is nitrogen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922295284.2U CN211496799U (en) | 2019-12-19 | 2019-12-19 | Directional lifting platform applied to vehicle maintenance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922295284.2U CN211496799U (en) | 2019-12-19 | 2019-12-19 | Directional lifting platform applied to vehicle maintenance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211496799U true CN211496799U (en) | 2020-09-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922295284.2U Expired - Fee Related CN211496799U (en) | 2019-12-19 | 2019-12-19 | Directional lifting platform applied to vehicle maintenance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211496799U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113832843A (en) * | 2021-10-20 | 2021-12-24 | 中铁大桥勘测设计院集团有限公司 | Bridge structure and expansion joint structure |
-
2019
- 2019-12-19 CN CN201922295284.2U patent/CN211496799U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113832843A (en) * | 2021-10-20 | 2021-12-24 | 中铁大桥勘测设计院集团有限公司 | Bridge structure and expansion joint structure |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200915 Termination date: 20211219 |
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| CF01 | Termination of patent right due to non-payment of annual fee |