CN111792594B - Well lid lifting device - Google Patents
Well lid lifting device Download PDFInfo
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- CN111792594B CN111792594B CN202010689466.2A CN202010689466A CN111792594B CN 111792594 B CN111792594 B CN 111792594B CN 202010689466 A CN202010689466 A CN 202010689466A CN 111792594 B CN111792594 B CN 111792594B
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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
- B66F19/00—Hoisting, lifting, hauling or pushing, not otherwise provided for
- B66F19/005—Lifting devices for manhole covers
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Abstract
The invention discloses a well lid lifting device which comprises a front side main support, a rear side main support, a dustproof cover, a driving module, a clamping module, a well lid, a hooking module, a lifting rack sliding polished rod, a lifting motor fixing rod, a lifting motor support, a lifting motor, a lifting gear and a lifting rack. According to the invention, the hooking module can extend into the lower part of the well lid, so that the well lid can be conveniently clamped and hooked, when the well lid is lifted by a certain angle, the clamping module can timely hook the well lid to prevent the well lid from falling down and injuring workers, and when the well lid does not work, the hooking module can be recovered to the initial state by arranging the return spring, so that the well lid can be conveniently used continuously next time.
Description
Technical Field
The invention relates to the technical field of traffic maintenance, in particular to a well lid lifting device.
Background
The well lid for cover road or the deep well in family, prevent that people or object from falling, can divide into metal well lid, high strength fiber cement concrete well lid, resin well lid etc. according to the material, generally adopt circularly, can be used to greenbelt, pavement, motorway, pier, lane etc. so the well lid is everywhere visible in our life, but the well lid is in order to prevent burglary, with the very heaviness of well lid design, this maintenance operation under the well lid has produced huge obstacle.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides the well lid lifting device, the hooking module is arranged, the well lid lifting device can extend into the lower part of the well lid, the well lid can be conveniently clamped and hooked, and the problem that the well lid is very heavy in design for preventing theft, and huge obstacles are generated to maintenance operation under the well lid is solved.
In order to achieve the purpose, the invention provides the following technical scheme: a well lid lifting device comprises a front side main support, a rear side main support, a dustproof cover, a driving module, a clamping module, a well lid, a hooking module, a lifting rack sliding polished rod, a lifting motor fixing rod, a lifting motor support, a lifting motor, a lifting gear and a lifting rack, wherein the rear side of the front side main support is provided with the rear side main support, the dustproof cover is arranged between opposite surfaces of the front side main support and the rear side main support, the driving module is arranged inside the dustproof cover, the clamping module is arranged below the driving module, the well lid is clamped below the clamping module, the hooking module is arranged in the middle of the clamping module, the lifting rack is movably connected to the right side of the driving module, the lifting gear is connected to an upper surface gear of the lifting rack, the lifting motor is arranged behind the lifting gear, the lifting motor support is sleeved on the outer surface of the lifting motor, the lifting motor support is fixedly connected with the front side main support and the rear side main support through the lifting motor fixing rod, the lifting rack is connected with the front main bracket and the rear main bracket in a sliding way through a lifting rack sliding polished rod.
The driving module comprises a driving bottom plate, a pulling gear, a pulling motor support, a rear screw rod gear, a front screw rod gear, a rear screw rod, a front screw rod and a sliding polished rod, wherein the pulling plate is connected above the driving bottom plate in a sliding mode through the sliding polished rod, the pulling motor is fixedly connected above the pulling plate through the pulling motor support, the pulling gear is fixedly connected to an output shaft of the pulling motor, the front surface and the back surface of the outer surface of the pulling gear are respectively connected with the front screw rod gear and the rear screw rod gear through gears, the front screw rod gear and the middle of the rear screw rod gear are respectively fixedly connected with the front screw rod and the rear screw rod, the front screw rod gear and the rear screw rod gear are rotatably connected with the pulling plate, and the rear screw rod and the front screw rod are in threaded connection with the driving bottom plate.
The clamping module comprises a clamping bottom plate, a hooking driving motor support, a hooking gear, a hooking wheel, a clamping motor support, a clamping motor, a clamping rotating shaft, a left end clamping block, a clamping gear, a clamping driven gear, a right end clamping block, a hooking wheel support, a connecting block, a hooking rod support, a hooking sliding rod and a hooking driven gear, wherein the clamping bottom plate is fixedly connected with the driving bottom plate through a connecting column, the middle part of the upper surface of the clamping bottom plate is provided with a groove, the clamping driven gear is arranged in the groove and is rotatably connected with the clamping bottom plate through the clamping rotating shaft, the left end clamping block and the right end clamping block are respectively and fixedly connected with the left end and the right end of the clamping rotating shaft, the outer surface gear of the clamping driven gear is connected with the clamping gear, the left side of the clamping bottom plate is provided with the clamping motor, and the clamping motor is fixedly connected with the clamping bottom plate through the clamping motor support, and the output shaft and the joint gear fixed connection of joint motor, joint driven gear's rear is provided with the hook joint peg support, and the middle part sliding connection of hook joint peg support has the hook joint slide bar, and the top swing joint of hook joint slide bar has the hook joint wheel, and the bottom swing joint of hook joint slide bar has the connecting block, the hook joint wheel passes through hook joint wheel support swing joint with the joint bottom plate, the side fixedly connected with hook joint driven gear of hook joint wheel, hook joint driven gear's surface gear connection has the hook joint gear, and the right-hand hook joint driving motor that is provided with of hook joint gear, hook joint driving motor passes through hook joint driving motor support fixed connection with the joint bottom plate.
The hooking module comprises a hooking pipe, a left clamping block, a hooking rod, a right clamping block, a magnet, a homing spring bottom plate, a homing spring, a spring limiting plate and a limiting block, the hooking pipe is fixedly connected with the clamping bottom plate, the hooking rod is arranged inside the hooking pipe, the top end of the hooking rod is fixedly connected with the connecting block, the bottom end of the hooking rod is fixedly connected with the spring limiting plate, the upper surface of the spring limiting plate is fixedly connected with the homing spring, the top end of the homing spring is fixedly connected with the homing spring bottom plate, the homing spring bottom plate is fixedly connected with the bottom end of the hooking pipe, the upper surface of the homing spring bottom plate is fixedly connected with the limiting block, the upper surface of the limiting block is lapped with the magnet, the left side clamping block and the right side clamping block are lapped on the left side and the right side of the magnet respectively, and the left side clamping block and the right side clamping block are movably connected with the hooking pipe.
Preferably, the left and right ends in front of the upper surface of the clamping bottom plate are provided with grooves, and a left clamping block and a right clamping block are arranged in the left and right grooves respectively.
Preferably, the homing spring is located between the opposite faces of the homing spring base plate and the spring limit plate, and the homing spring surrounds the outer surface of the hooking rod.
Preferably, the hooking rod sequentially penetrates through the homing spring bottom plate, the limiting block and the magnet from bottom to top, and is connected with the homing spring bottom plate and the limiting block in a sliding manner and fixedly connected with the magnet.
Preferably, left end joint piece, right-hand member joint piece, left side fixture block and right side fixture block overlap joint with the bottom surface of well lid at the during operation.
Has the advantages that: compared with the prior art, the invention provides a well lid lifting device which has the following beneficial effects: according to the invention, the hooking module can extend into the lower part of the well lid, so that the well lid can be conveniently clamped and hooked, when the well lid is lifted by a certain angle, the clamping module can timely hook the well lid to prevent the well lid from falling down and injuring workers, and when the well lid does not work, the hooking module can be recovered to the initial state by arranging the return spring, so that the well lid can be conveniently used continuously next time.
Drawings
FIG. 1 is a schematic view of the structure of the present invention.
Fig. 2 is a schematic structural diagram of a driving module according to the present invention.
FIG. 3 is a schematic diagram of a card module according to the present invention.
FIG. 4 is a schematic view of the structure of the hooking sliding rod of the present invention.
FIG. 5 is a schematic view of the present invention.
Fig. 6 is an enlarged view of the hook module structure of the present invention.
In the figure: 1-a front main support; 2-a rear main support; 3, a dustproof cover; 4-a drive module; 401-drive backplane; 402-pulling the plate; 403-pulling the gear; 404-a pull motor; 405-pulling the motor bracket; 406-rear side lead screw gear; 407-front side lead screw gear; 408-rear side lead screw; 409-front side screw rod; 410-sliding polish rod; 5-clamping the module; 501-clamping a bottom plate; 502-hook drive motor; 503-hooking a driving motor bracket; 504-hook gear; 505-a hooking wheel; 506-clamping a motor bracket; 507-clamping the motor; 508-clamping the rotating shaft; 509-left end clamping block; 510-clamping a gear; 511-clamping the driven gear; 512-right end clamping block; 513-a hooking wheel bracket; 514-connecting block; 515-hooking the hanging rod bracket; 516-hooking the sliding rod; 517-hooking the driven gear; 6-well cover; 7-hooking the module; 701-hooking pipe; 702-a left fixture block; 703-hooking rod; 704-right fixture block; 705-magnet; 706-homing spring floor; 707-homing spring; 708-a spring limit plate; 709-a limiting block; 8-lifting the rack sliding polish rod; 9-lifting the motor fixing rod; 10-lifting the motor bracket; 11-raising the motor; 12-lifting gear; 13-raise the rack.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, fig. 2, fig. 3, fig. 4, fig. 5, and fig. 6, the present invention provides a technical solution: a well lid lifting device comprises a front side main support 1, a rear side main support 2, a dustproof cover 3, a driving module 4, a clamping module 5, a well lid 6, a hooking module 7, a lifting rack sliding polished rod 8, a lifting motor fixing rod 9, a lifting motor support 10, a lifting motor 11, a lifting gear 12 and a lifting rack 13, wherein the rear side main support 2 is arranged behind the front side main support 1, the dustproof cover 3 is arranged between the opposite surfaces of the front side main support 1 and the rear side main support 2, the driving module 4 is arranged inside the dustproof cover 3, the clamping module 5 is arranged below the driving module 4, the well lid 6 is clamped below the clamping module 5, the hooking module 7 is arranged in the middle of the clamping module 5, the lifting rack 13 is movably connected to the right side of the driving module 4, the lifting gear 12 is connected to the upper surface lifting gear of the lifting rack 13, and the lifting motor 11 is arranged behind the lifting gear 12, the surface that lifts up motor 11 cup joints and lifts up motor support 10, lifts up motor support 10 and front side main support 1 and rear side main support 2 through lifting up motor dead lever 9 fixed connection, lifts up rack 13 and front side main support 1 and rear side main support 2 through lifting up rack slip polished rod 8 sliding connection.
As shown in fig. 2, which is a schematic structural diagram of a driving module of the present invention, a driving module 4 includes a driving base plate 401, a pulling plate 402, a pulling gear 403, a pulling motor 404, a pulling motor bracket 405, a rear screw gear 406, a front screw gear 407, a rear screw 408, a front screw 409 and a sliding screw 410, the pulling plate 402 is slidably connected to the upper side of the driving base plate 401 through the sliding screw 410, the pulling motor 404 is fixedly connected to the upper side of the pulling plate 402 through the pulling motor bracket 405, the pulling gear 403 is fixedly connected to an output shaft of the pulling motor 404, the front and rear surfaces of the outer surface of the pulling gear 403 are respectively geared with the front screw gear 407 and the rear screw gear 406, the middle portions of the front screw gear 407 and the rear screw gear 406 are respectively fixedly connected with the front screw 409 and the rear screw 408, and the front screw gear 407 and the rear screw gear 406 are rotatably connected to the pulling plate 402, the rear screw 408 and the front screw 409 are threadedly connected to the driving base plate 401.
FIG. 3 is a schematic structural diagram of a latch module according to the present invention, in which the latch module 5 includes a latch base plate 501, a hook driving motor 502, a hook driving motor bracket 503, a hook gear 504, a hook wheel 505, a latch motor bracket 506, a latch motor 507, a latch rotating shaft 508, a left end latch block 509, a latch gear 510, a latch driven gear 511, a right end latch block 512, a hook wheel bracket 513, a connecting block 514, a hook rod bracket 515, a hook sliding rod 516 and a hook driven gear 517, the latch base plate 501 and the driving base plate 401 are fixedly connected through a connecting column, a groove is formed in the middle of the upper surface of the latch base plate 501, the latch driven gear 511 is disposed in the groove, the latch driven gear 511 is rotatably connected with the latch base plate 501 through the latch rotating shaft 508, the left end latch block 509 and the right end latch block 512 are respectively fixedly connected to the left and right ends of the latch rotating shaft 508, a latch gear 510 is connected to the outer surface of the latch driven gear 511, a clamping motor 507 is arranged on the left side of the clamping bottom plate 501, the clamping motor 507 is fixedly connected with the clamping bottom plate 501 through a clamping motor support 506, an output shaft of the clamping motor 507 is fixedly connected with a clamping gear 510, a hooking rod support 515 is arranged behind the clamping driven gear 511, a hooking sliding rod 516 is slidably connected to the middle of the hooking rod support 515, a hooking wheel 505 is movably connected to the top end of the hooking sliding rod 516, a connecting block 514 is movably connected to the bottom end of the hooking sliding rod 516, the hooking wheel 505 is movably connected with the clamping bottom plate 501 through a hooking wheel support 513, a hooking driven gear 517 is fixedly connected to the side face of the hooking wheel 505, a hooking gear 504 is connected to the outer surface gear of the hooking driven gear 517, a hooking driving motor 502 is arranged on the right side of the hooking gear 504, and the hooking driving motor 502 is fixedly connected with the clamping bottom plate 501 through a hooking driving motor support 503.
As shown in fig. 6, which is an enlarged view of the hooking module structure of the present invention, the hooking module 7 includes a hooking pipe 701, a left side latch 702, a hooking rod 703, a right side latch 704, a magnet 705, a return spring bottom plate 706, a return spring 707, a spring limiting plate 708, and a limiting block 709, the hooking pipe 701 is fixedly connected to the hooking bottom plate 501, the hooking rod 703 is disposed inside the hooking pipe 701, the top end of the hooking rod 703 is fixedly connected to the connecting block 514, the bottom end of the hooking rod 703 is fixedly connected to the spring limiting plate 708, the upper surface of the spring limiting plate 708 is fixedly connected to the return spring 707, the top end of the return spring 707 is fixedly connected to the return spring bottom plate 706, the return spring bottom plate 706 is fixedly connected to the bottom end of the hooking pipe 701, the upper surface of the return spring bottom plate 706 is fixedly connected to the limiting block 709, the upper surface of the limiting block 709 is overlapped with the magnet 705, the left and right sides of the magnet 705 are respectively overlapped with the left side latch 702 and the right side latch 704, and the left fixture block 702 and the right fixture block 704 are movably connected with the hooking pipe 701.
When in use, a user moves the device above the well lid 6 and extends the bottom end of the hooking module 7 to the lower part of the well lid 6, then starts the hooking driving motor 502, brings the shop hooking driven gear 517 to rotate through the hooking gear 504, because the hooking driven gear 517 is fixedly connected with the hooking wheel 505, the hooking driven gear 517 will pull the hooking sliding rod 516 and the hooking module 7 to lift the rack 13 to move upwards, because the hooking rod 703 is fixedly connected with the magnet 705, the magnet 705 moves upwards and pushes the left fixture 702 and the right fixture 704 on the left and right sides open, then starts the pulling motor 404 to lift the clamping module 5 through the rotation of the front lead screw 409 and the front lead screw gear 407, at the moment, the well lid 6 is also lifted, and starts the clamping motor bracket 506 when the lifting height is proper, so that the clamping gear 510 and the clamping driven gear 511 drive the clamping rotating shaft 508 to rotate, thereby make left end joint piece 509 and right-hand member joint piece 512 deepen the below of well lid 6, at this moment start and lift motor 11, through lifting up gear 12 and lifting up rack 13 with drive module 4 and the whole rearward movement of joint module 5, at this moment the angle grow that well lid 6 lifted, at this moment the staff directly lift up well lid 6 can.
To sum up, this well lid lifts up device through setting up hooking module 7, can stretch into the below of well lid 6, conveniently blocks well lid 6 and colludes, lifts up certain angle when the well lid 6 through setting up joint module 5, can in time hook well lid 6, prevents that well lid 6 from dropping and injures the staff by a crashing object, through setting up playback spring 707, puts out of work when this banker, hooking module 7 resumes initial condition in time, makes things convenient for next continuation of use.
Claims (5)
1. The utility model provides a well lid lifts up device, includes front side main support (1), rear side main support (2), shield (3), drive module (4), joint module (5), well lid (6), hookup module (7), lifts up rack slip polished rod (8), lifts up motor dead lever (9), lifts up motor support (10), lifts up motor (11), lifts up gear (12) and lifts up rack (13), its characterized in that: the rear side of the front side main support (1) is provided with a rear side main support (2), a dustproof cover (3) is arranged between opposite surfaces of the front side main support (1) and the rear side main support (2), a driving module (4) is arranged inside the dustproof cover (3), a clamping module (5) is arranged below the driving module (4), a well cover (6) is clamped below the clamping module (5), a hooking module (7) is arranged in the middle of the clamping module (5), the right side of the driving module (4) is movably connected with a lifting rack (13), an upper surface gear of the lifting rack (13) is connected with a lifting gear (12), a lifting motor (11) is arranged behind the lifting gear (12), the outer surface of the lifting motor (11) is sleeved with a lifting motor support (10), and the lifting motor support (10) is fixedly connected with the front side main support (1) and the rear side main support (2) through a lifting motor fixing rod (9), the lifting rack (13) is connected with the front main bracket (1) and the rear main bracket (2) in a sliding way through a lifting rack sliding polish rod (8);
the driving module (4) comprises a driving bottom plate (401), a pulling plate (402), a pulling gear (403), a pulling motor (404), a pulling motor bracket (405), a rear screw rod gear (406), a front screw rod gear (407), a rear screw rod (408), a front screw rod (409) and a sliding polished rod (410), wherein the pulling plate (402) is connected above the driving bottom plate (401) in a sliding manner through the sliding polished rod (410), the pulling motor (404) is fixedly connected above the pulling plate (402) through the pulling motor bracket (405), an output shaft of the pulling motor (404) is fixedly connected with the pulling gear (403), the front surface and the back surface of the outer surface of the pulling gear (402) are respectively in gear connection with the front screw rod gear (407) and the rear screw rod gear (406), the middle parts of the front screw rod gear (403) and the rear screw rod gear (406) are respectively in fixed connection with the front screw rod (409) and the rear screw rod (408), the front side screw rod gear (407) and the rear side screw rod gear (406) are rotatably connected with the pulling plate (402), and the rear side screw rod (408) and the front side screw rod (409) are in threaded connection with the driving bottom plate (401);
the clamping module (5) comprises a clamping bottom plate (501), a hooking driving motor (502), a hooking driving motor support (503), a hooking gear (504), a hooking wheel (505), a clamping motor support (506), a clamping motor (507), a clamping rotating shaft (508), a left end clamping block (509), a clamping gear (510), a clamping driven gear (511), a right end clamping block (512), a hooking wheel support (513), a connecting block (514), a hooking rod support (515), a hooking sliding rod (516) and a hooking driven gear (517), wherein the clamping bottom plate (501) is fixedly connected with the driving bottom plate (401) through a connecting column, a groove is formed in the middle of the upper surface of the clamping bottom plate (501), the clamping driven gear (511) is arranged in the groove, and the clamping driven gear (511) is rotatably connected with the clamping bottom plate (501) through the clamping rotating shaft (508), the left end and the right end of the clamping rotating shaft (508) are respectively fixedly connected with a left end clamping block (509) and a right end clamping block (512), the outer surface gear of the clamping driven gear (511) is connected with a clamping gear (510), the left side of the clamping bottom plate (501) is provided with a clamping motor (507), the clamping motor (507) is fixedly connected with the clamping bottom plate (501) through a clamping motor support (506), the output shaft of the clamping motor (507) is fixedly connected with the clamping gear (510), the rear side of the clamping driven gear (511) is provided with a hooking rod support (515), the middle part of the hooking rod support (515) is slidably connected with a hooking sliding rod (516), the top end of the hooking sliding rod (516) is movably connected with a hooking wheel (505), the bottom end of the hooking sliding rod (516) is movably connected with a connecting block (514), the hooking wheel (505) is movably connected with the clamping bottom plate (501) through a hooking wheel support (513), a hook-connection driven gear (517) is fixedly connected to the side face of the hook-connection wheel (505), a hook-connection gear (504) is connected to the outer surface gear of the hook-connection driven gear (517), a hook-connection driving motor (502) is arranged on the right side of the hook-connection gear (504), and the hook-connection driving motor (502) is fixedly connected with the clamping bottom plate (501) through a hook-connection driving motor support (503);
the hooking module (7) comprises a hooking pipe (701), a left clamping block (702), a hooking rod (703), a right clamping block (704), a magnet (705), a homing spring bottom plate (706), a homing spring (707), a spring limiting plate (708) and a limiting block (709), the hooking pipe (701) is fixedly connected with the clamping bottom plate (501), the hooking rod (703) is arranged inside the hooking pipe (701), the top end of the hooking rod (703) is fixedly connected with a connecting block (514), the bottom end of the hooking rod (703) is fixedly connected with the spring limiting plate (708), the upper surface of the spring limiting plate (708) is fixedly connected with the homing spring (707), the top end of the homing spring (707) is fixedly connected with the homing spring bottom plate (706), the homing spring bottom plate (706) is fixedly connected with the bottom end of the hooking pipe (701), the upper surface of the homing spring bottom plate (706) is fixedly connected with the limiting block (709), the upper surface of the limiting block (709) is lapped with a magnet (705), the left side and the right side of the magnet (705) are respectively lapped with a left clamping block (702) and a right clamping block (704), and the left clamping block (702) and the right clamping block (704) are movably connected with the hooking pipe (701).
2. A manhole cover lifting device according to claim 1, wherein: the left end and the right end in front of the upper surface of the clamping bottom plate (501) are respectively provided with a groove, and a left end clamping block (509) and a right end clamping block (512) are respectively arranged in the left groove and the right groove.
3. A manhole cover lifting device according to claim 1, wherein: the return spring (707) is positioned between the opposite surfaces of the return spring bottom plate (706) and the spring limiting plate (708), and the return spring (707) surrounds the outer surface of the hooking rod (703).
4. A manhole cover lifting device according to claim 1, wherein: the hooking rod (703) sequentially penetrates through the homing spring bottom plate (706), the limiting block (709) and the magnet (705) from bottom to top, the hooking rod (703) is slidably connected with the homing spring bottom plate (706) and the limiting block (709), and the hooking rod (703) is fixedly connected with the magnet (705).
5. A manhole cover lifting device according to claim 1, wherein: the left end clamping block (509), the right end clamping block (512), the left clamping block (702) and the right clamping block (704) are in lap joint with the bottom surface of the well lid (6) during working.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010689466.2A CN111792594B (en) | 2020-07-17 | 2020-07-17 | Well lid lifting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010689466.2A CN111792594B (en) | 2020-07-17 | 2020-07-17 | Well lid lifting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111792594A CN111792594A (en) | 2020-10-20 |
| CN111792594B true CN111792594B (en) | 2021-09-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010689466.2A Active CN111792594B (en) | 2020-07-17 | 2020-07-17 | Well lid lifting device |
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| CN (1) | CN111792594B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4789072A (en) * | 1987-04-20 | 1988-12-06 | Quam Dean R | Hydraulic manhole cover lifter |
| EP0991822A1 (en) * | 1997-06-27 | 2000-04-12 | Jakob Munch-Fals | A well cover lifting tool |
| CN108394850A (en) * | 2018-01-18 | 2018-08-14 | 合肥智慧龙机械设计有限公司 | A kind of manhole cover lifting device with steering mechanism |
| CN209778241U (en) * | 2019-03-20 | 2019-12-13 | 何喻 | Lifting device for manhole cover of pavement sewer |
-
2020
- 2020-07-17 CN CN202010689466.2A patent/CN111792594B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4789072A (en) * | 1987-04-20 | 1988-12-06 | Quam Dean R | Hydraulic manhole cover lifter |
| EP0991822A1 (en) * | 1997-06-27 | 2000-04-12 | Jakob Munch-Fals | A well cover lifting tool |
| CN108394850A (en) * | 2018-01-18 | 2018-08-14 | 合肥智慧龙机械设计有限公司 | A kind of manhole cover lifting device with steering mechanism |
| CN209778241U (en) * | 2019-03-20 | 2019-12-13 | 何喻 | Lifting device for manhole cover of pavement sewer |
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| Publication number | Publication date |
|---|---|
| CN111792594A (en) | 2020-10-20 |
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Effective date of registration: 20210907 Address after: 225300 Gaogang science and Technology Pioneer Park, Taizhou, Jiangsu Applicant after: Jiangsu Xingzhou industrial and mining equipment Co.,Ltd. Address before: 225328 No.1, Fuqian Road, Dasi Town, Gaogang District, Taizhou City, Jiangsu Province Applicant before: Wang Siqi |
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