CN111731999A - Bridge crane with anti-collision early warning function - Google Patents
Bridge crane with anti-collision early warning function Download PDFInfo
- Publication number
- CN111731999A CN111731999A CN202010668218.XA CN202010668218A CN111731999A CN 111731999 A CN111731999 A CN 111731999A CN 202010668218 A CN202010668218 A CN 202010668218A CN 111731999 A CN111731999 A CN 111731999A
- Authority
- CN
- China
- Prior art keywords
- bridge crane
- fixedly arranged
- sleeve
- early warning
- outer ring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C15/00—Safety gear
- B66C15/06—Arrangements or use of warning devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C15/00—Safety gear
- B66C15/06—Arrangements or use of warning devices
- B66C15/065—Arrangements or use of warning devices electrical
Abstract
The invention discloses a bridge crane with an anti-collision early warning function, which comprises a bridge crane, a fixing plate, a positioning plate, an electric connection terminal, a conductive block, an insulating column, a detection plate, an I proximity sensor, a fixing sleeve, an alarm, an electric push rod, an outer ring frame, a communication sleeve, an II proximity sensor and a suction air pump, wherein firstly, the power-off of a power supply and the bridge crane can be realized through the contact separation power-off design when the bridge crane moves forwards and backwards to touch an obstacle, so that the bridge crane is prevented from colliding the obstacle, thereby causing the problem of great potential safety hazard, secondly, the bridge crane is matched with a multi-position proximity sensing alarm mechanism, the alarm can be carried out after the obstacle is detected, the aim of reminding an operator is achieved, finally, because a multi-mode adjusting structure is adopted, the detection length and the diameter can be adjusted according to the needs, on the, also realize anticollision early warning function, extended the practicality, possessed higher popularization and application and worth.
Description
Technical Field
The invention relates to the technical field of bridge cranes, in particular to a bridge crane with an anti-collision early warning function.
Background
The bridge crane is a hoisting device which is transversely erected above workshops, warehouses and material yards to hoist materials, two ends of the bridge crane are located on a high cement column or a metal support and are shaped like a bridge, the bridge of the bridge crane longitudinally runs along rails laid on the elevated frames on two sides, the space below the bridge can be fully used for hoisting the materials, the bridge crane is not obstructed by ground equipment, the bridge crane is a hoisting machine with the widest application range and the largest quantity, and is an important tool and equipment for realizing mechanization and automation of the production process in modern industrial production and hoisting transportation, so that the single-beam bridge crane is widely applied to departments and places such as indoor and outdoor industrial and mining enterprises, steel chemical industry, railway transportation, port wharfs, logistics turnover and the like.
According to the above, when the existing bridge crane lifts objects in a workshop, a warehouse and a stock ground, due to the fact that operating personnel or other external factors (when encountering obstacles) may cause the speed of the lifted objects to be too fast or too slow, the objects collide with the obstacles, when the objects are serious, the objects are damaged, certain influence is brought to the quality of the objects, the existing bridge crane does not have the functions of anti-collision early warning and power-off stopping, and therefore the problem of great hidden danger is brought to actual operation safety. In view of the above drawbacks, it is necessary to design a bridge crane with an anti-collision warning function.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the utility model provides a bridge crane who possesses anticollision early warning function solves current traditional bridge crane and touches around the barrier easily at the operation removal in-process, not only causes the damage for self and article on every side, also brings the problem of very big hidden danger for personnel's safety in addition.
In order to solve the technical problems, the technical scheme of the invention is as follows: a bridge crane with an anti-collision early warning function comprises a bridge crane, and further comprises a fixed plate, positioning plates, electric connection terminals, conductive blocks, insulating columns, a detection plate, an I proximity sensor, a fixed sleeve, an alarm, an electric push rod, an outer ring frame, a communication sleeve, an II proximity sensor and a suction air pump, wherein the fixed plate is fixedly arranged at the front end and the rear end of the bridge crane, the fixed plate is connected with the bridge crane through bolts, the positioning plates are divided into two groups, one group of the positioning plates is fixedly arranged at two sides of the middle part of the front end of the fixed plate at the front end of the bridge crane, the other group of the positioning plates is fixedly arranged at two sides of the middle part of the rear end of the fixed plate at the rear end of the bridge crane, the two groups of the positioning plates are connected with the fixed plate through bolts, the electric connection terminals are fixedly arranged at the front, the conductive block and the positioning plate are connected in a front-back sliding mode, the insulating columns are fixedly arranged at the front end of the conductive block of the front end fixing plate and at the rear end of the conductive block of the rear end fixing plate respectively, the insulating columns are connected with the conductive blocks through bolts, the detection plate is fixedly arranged at the front end of the front end insulating column and at the rear end of the rear end insulating column respectively, the detection plate is connected with the insulating columns through bolts, the I proximity sensors are multiple in number, the I proximity sensors are sequentially and fixedly arranged in the detection plate from left to right, the I proximity sensors are connected with the detection plate through bolts, the fixing sleeve is fixedly arranged at the middle end of the bottom of the bridge crane, the fixing sleeve is connected with the bridge crane through bolts, the alarm is fixedly arranged at the front end of the fixing sleeve, the alarm is connected with the fixing sleeve through bolts, and the alarm is connected with the I proximity sensors through electric signal lines, the electric push rod sets firmly in fixed cover left and right sides, electric push rod and fixed cover adopt bolted connection, outer loop frame quantity be a plurality of, outer loop frame from last to distributing in electric push rod outside bottom down in proper order, top outer loop frame and electric push rod adopt bolted connection, the intercommunication cover set firmly in the outer loop frame left and right sides, intercommunication cover and outer loop frame integrated into one piece, II proximity sensor quantity be a plurality of, II proximity sensor distribute in outer loop frame outer wall left and right sides, II proximity sensor and outer loop frame adopt bolted connection, just II proximity sensor and alarm adopt signal of telecommunication line connection, the suction pump set firmly in bridge crane bottom left and right sides, suction pump and bridge crane adopt bolted connection.
Furthermore, the left side and the right side of the fixing plate are fixedly provided with guide sleeves, the guide sleeves and the fixing plate are integrally formed, springs are fixedly arranged inside the guide sleeves, and the springs and the guide sleeves are connected in a welding mode.
Furthermore, the electrical connection terminals are divided into two groups, the left electrical connection terminal of each group is connected with the bridge crane through a power line, and the right electrical connection terminal of each group is connected with the factory power supply through a power line.
Furthermore, the left side and the right side of the detection plate are fixedly provided with guide rods, the guide rods are connected with the detection plate through bolts, the guide rods are connected with the guide sleeves in a sliding mode, and the guide rods are connected with the springs in a welding mode.
Further, the outer ring frame consists of a left side frame and a right side frame, the right side of the left side frame is further provided with a right side frame in a sliding mode, the right side frame and the left side frame are connected in a sliding mode from side to side, the front end and the rear end of the right side of the left side frame and the front end and the rear end of the left side of the right side frame are further provided with avoidance sliding grooves, and the avoidance sliding grooves are L-shaped grooves.
Furthermore, a connecting air pipe is slidably arranged between the upper and lower communicating sleeves, the connecting air pipe and the communicating sleeves are in up-and-down sliding connection, a main air pipe is fixedly arranged on the top communicating sleeve, the main air pipe and the top communicating sleeve are connected through an adhesive, and the main air pipe and the suction air pump are in internal and external threaded connection.
Compared with the prior art, this bridge crane who possesses anticollision early warning function has following advantage:
1. at first through touching separation outage formula design, can realize external power source and bridge crane's outage because of the extrusion force when touching the barrier in the bridge crane back-and-forth movement in-process, prevent that bridge crane from striking the barrier promptly to cause the problem of very big potential safety hazard.
2. Secondly, the multi-position proximity sensing alarm mechanism is matched, sound alarm can be carried out after surrounding obstacle objects are detected, and therefore the purpose of reminding operators is achieved, the operators can stop operations on hands conveniently to check the operators, and the early warning effect is achieved.
3. Finally, due to the fact that the multi-mode adjusting structure is adopted, the length and the diameter can be adjusted according to needs, the anti-collision early warning function is achieved on the basis of avoiding interference influence on lifted objects, and therefore the practicability is expanded, and the anti-collision early warning device has high popularization and application values.
Drawings
Fig. 1 is a front view of a bridge crane with an anti-collision warning function;
fig. 2 is a top view of a bridge crane with an anti-collision warning function;
fig. 3 is a cross-sectional view of a bridge crane with an anti-collision warning function in the direction a;
fig. 4 is a perspective view of a bridge crane with an anti-collision warning function 1;
fig. 5 is a perspective view of a bridge crane with an anti-collision warning function in a changed state 1;
fig. 6 is a perspective view 2 showing a change state of a bridge crane with an anti-collision warning function;
fig. 7 is a perspective view of a bridge crane with an anti-collision warning function in a changed state, which is shown in fig. 3;
fig. 8 is a perspective view of a bridge crane with an anti-collision warning function in a separated state;
fig. 9 is an enlarged perspective view of the mounting plate portion.
The device comprises a bridge crane 1, a fixing plate 2, a positioning plate 3, an electric connection terminal 4, a conductive block 5, an insulating column 6, a detection plate 7, an I proximity sensor 8, a fixing sleeve 9, an alarm 10, an electric push rod 11, an outer ring frame 12, a communication sleeve 13, an II proximity sensor 14, a suction air pump 15, a guide sleeve 201, a spring 202, a guide rod 701, an avoidance chute 1201, a connecting air pipe 1301 and a main air pipe 1302.
The following detailed description will be further described in conjunction with the above-identified drawings.
Detailed Description
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the concepts underlying the described embodiments, however, it will be apparent to one skilled in the art that the described embodiments may be practiced without some or all of these specific details, and in other cases well-known process steps have not been described in detail.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the invention.
As shown in fig. 1, 2, 3, 4, 5, 6, 7, 8 and 9, the bridge crane with an anti-collision early warning function comprises a bridge crane 1, a fixing plate 2, a positioning plate 3, an electric terminal 4, a conductive block 5, an insulating column 6, a detection plate 7, an I proximity sensor 8, a fixing sleeve 9, an alarm 10, an electric push rod 11, an outer ring frame 12, a communication sleeve 13, an II proximity sensor 14 and a suction air pump 15, wherein the fixing plate 2 is fixedly arranged at the front end and the rear end of the bridge crane 1, the fixing plate 2 is connected with the bridge crane 1 by bolts, the positioning plates 3 are divided into two groups, one group of the positioning plates 3 is fixedly arranged at two sides of the middle part of the front end of the fixing plate 2 at the front end of the bridge crane 1, the other group of the positioning plates 3 is fixedly arranged at two sides of the middle part of the rear end of the fixing plate 2 of the bridge crane 1, the two groups of, the electric connection terminal 4 is fixedly arranged at the front end of the inner wall of the positioning plate 3, the electric connection terminal 4 is connected with the positioning plate 3 through bolts, the conductive block 5 is slidably arranged between the positioning plates 3, the conductive block 5 is connected with the positioning plate 3 in a front-back sliding manner, the insulating columns 6 are respectively fixedly arranged at the front end of the conductive block 5 of the front-end fixing plate 2 and the rear end of the conductive block 5 of the rear-end fixing plate 2, the insulating columns 6 are connected with the conductive block 5 through bolts, the detection plate 7 is respectively fixedly arranged at the front end of the front-end insulating column 6 and the rear end of the rear-end insulating column 6, the detection plate 7 is connected with the insulating columns 6 through bolts, the I proximity sensors 8 are a plurality of pieces, the I proximity sensors 8 are sequentially and fixedly arranged in the detection plate 7 from left to right, the I proximity sensors 8 are connected with the detection plate 7 through bolts, the fixing sleeve 9 is fixedly arranged at the middle end of the bottom, the safety monitoring device is characterized in that the fixed sleeve 9 is connected with the bridge crane 1 through bolts, the alarm 10 is fixedly arranged at the front end of the fixed sleeve 9, the alarm 10 is connected with the fixed sleeve 9 through bolts, the alarm 10 is connected with the proximity sensors 8 through electric signal lines, the electric push rods 11 are fixedly arranged at the left side and the right side of the fixed sleeve 9, the electric push rods 11 are connected with the fixed sleeve 9 through bolts, the outer ring frames 12 are a plurality of pieces, the outer ring frames 12 are sequentially distributed at the bottom of the outer side of the electric push rods 11 from top to bottom, the outer ring frames 12 at the top are connected with the electric push rods 11 through bolts, the communicating sleeves 13 are fixedly arranged at the left side and the right side of the outer ring frames 12, the communicating sleeves 13 and the outer ring frames 12 are integrally formed, the proximity sensors 14 are a plurality of pieces, and the proximity sensors 14 are distributed at, the II proximity sensor 14 is connected with the outer ring frame 12 through bolts, the II proximity sensor 14 is connected with the alarm 10 through an electric signal line, the suction pump 15 is fixedly arranged on the left side and the right side of the bottom of the bridge crane 1, and the suction pump 15 is connected with the bridge crane 1 through bolts;
it should be noted that the bridge crane 1 has two anti-collision early warning measures when performing hoisting operation, specifically as follows;
A. when the bridge crane 1 moves in the front-back direction, the I proximity sensor 8 triggers the alarm 10 to be started when detecting an obstacle, namely the alarm 10 gives an alarm sound, so that an operator can be prompted, the operator can stop operating in time, meanwhile, if the detection board 7 touches the obstacle, the detection board 7 drives the insulation column 6 to drive the conductive block 5 to slide towards the bridge crane 1 through extrusion, when the conductive block 5 is separated from the electric connection terminal 4, the external power supply and the bridge crane 1 are powered off, the bridge crane 1 is prevented from sliding in the front-back direction, and the I proximity sensor 8 is a YAMITIKE-GX-H8A micro proximity switch;
B. before the bottom of the bridge crane 1 is lifted, a worker can start the electric push rod 11 in advance to realize the width adjustment of the left side frame and the right side frame of the outer ring frame 12, then air is injected into the communicating sleeve 13 by operating the suction pump 15, even if a plurality of outer ring frames 12 slide downwards, the expansion of the outer ring frames 12 is realized, when the outer ring frames 12 are lifted, the II proximity sensors 14 trigger the alarm 10 to give an alarm sound after surrounding obstacles are close to the II proximity sensors 14 on the outer side of the outer ring frames 12, so that the worker can be prompted to operate, the worker can stop operating in time, the electric push rod 11 is of type Irelage-YLK-TG, the suction pump 15 is of type of Shangso-2 XZ-2 and has the functions of inflation and air suction, the II proximity sensor 14 is a YAMITIKE-GX-H8A micro proximity switch;
the left side and the right side of the fixed plate 2 are fixedly provided with guide sleeves 201, the guide sleeves 201 and the fixed plate 2 are integrally formed, springs 202 are fixedly arranged in the guide sleeves 201, and the springs 202 are connected with the guide sleeves 201 in a welding mode;
the guide sleeve 201 can fix the spring 202 and guide the guide rod 701, so that the stability of the front-back sliding of the detection plate 7 is ensured, and the spring 202 has resilience and can realize the forward resetting of the detection plate 7 through the self-resilience action after an obstacle is separated from the detection plate 7;
the electric terminals 4 are divided into two groups, the left electric terminal 4 of each group is connected with the bridge crane 1 by a power line, and the right electric terminal 4 of each group is connected with a factory power supply by a power line;
the electric terminal 4 is respectively connected with a power supply inside a factory and an incoming power line of a driving part of the bridge crane 1, and is used for carrying out circuit switching control through a conductive block 5;
the left side and the right side of the detection plate 7 are fixedly provided with guide rods 701, the guide rods 701 are connected with the detection plate 7 through bolts, the guide rods 701 are connected with the guide sleeves 201 in a sliding mode, and the guide rods 701 are connected with the springs 202 in a welding mode;
the guide rod 701 can slide back and forth along the inside of the guide sleeve 201, and the auxiliary detection plate 7 can slide by compressing the spring 202 when contacting an obstacle;
the outer ring frame 12 consists of a left side frame and a right side frame, the right side of the left side frame is also provided with a right side frame in a sliding manner, the right side frame and the left side frame are connected in a left-right sliding manner, the front end and the rear end of the right side of the left side frame and the front end of the left side of the right side frame are also provided with avoidance sliding grooves 1201, and the avoidance sliding grooves 1201 are L-shaped grooves;
it should be noted that the outer ring 12 has a left side frame and a right side frame structure, and can slide in the left-right direction under the action of the avoidance sliding groove 1201, so that the adjustment of the width position is realized;
a connecting air pipe 1301 is further slidably arranged between the upper and lower communicating sleeves 13, the connecting air pipe 1301 and the communicating sleeves 13 are in up-and-down sliding connection, a main air pipe 1302 is further fixedly arranged on the top communicating sleeve 13, the main air pipe 1302 is connected with the top communicating sleeve 13 through an adhesive, and the main air pipe 1302 is connected with the suction air pump 15 through internal and external threads;
it should be noted that the connecting air pipe 1301 can slide up and down along the inner wall of the communicating sleeve 13, when air is injected, the connecting air pipe 1301 and the communicating sleeve 13 can slide up and down to extend, when air is sucked out, the connecting air pipe 1301 and the communicating sleeve 13 can slide up and down to contract, and the main air pipe 1302 can connect the communicating sleeve 13 with the suction air pump 15 to facilitate air entering and exiting.
Claims (6)
1. A bridge crane with an anti-collision early warning function comprises a bridge crane and is characterized by further comprising fixing plates, positioning plates, electric connection terminals, conductive blocks, insulating columns, a detection plate, an I proximity sensor, a fixing sleeve, an alarm, an electric push rod, an outer ring frame, a communication sleeve, an II proximity sensor and a suction air pump, wherein the fixing plates are fixedly arranged at the front end and the rear end of the bridge crane, the positioning plates are divided into two groups, one group of the positioning plates are fixedly arranged on two sides of the middle part of the front end of the fixing plate at the front end of the bridge crane, the other group of the positioning plates are fixedly arranged on two sides of the middle part of the rear end of the fixing plate at the rear end of the bridge crane, the electric connection terminals are fixedly arranged at the front end of the inner wall of the positioning plates, the conductive blocks are slidably arranged between the positioning plates, the insulating columns are, the detection plate is fixedly arranged at the front end of the front-end insulating column and at the rear end of the rear-end insulating column respectively, the I proximity sensors are a plurality of pieces, the I proximity sensors are sequentially and fixedly arranged in the detection plate from left to right, the fixed sleeve is fixedly arranged at the middle end of the bottom of the bridge crane, the alarm is fixedly arranged at the front end of the fixed sleeve and is connected with the I proximity sensors by electric signal lines, the electric push rods are fixedly arranged at the left side and the right side of the fixed sleeve, the outer ring frames are a plurality of pieces, the outer ring frames are sequentially distributed at the bottom of the outer side of the electric push rods from top to bottom, the communicating sleeve is fixedly arranged at the left side and the right side of the outer ring frames, the II proximity sensors are a plurality of pieces, the II proximity sensors are distributed at the left side and the right side of the outer wall of the outer, the suction air pumps are fixedly arranged at the left side and the right side of the bottom of the bridge crane.
2. The bridge crane with the function of anti-collision early warning as claimed in claim 1, wherein guide sleeves are further fixedly arranged on the left and right sides of the fixing plate, and springs are further fixedly arranged in the guide sleeves.
3. The bridge crane with the function of anti-collision early warning as claimed in claim 1, wherein the electrical terminals are divided into two groups, the left electrical terminal of each group is connected with the bridge crane by a power line, and the right electrical terminal of each group is connected with a factory power supply by a power line.
4. The bridge crane with the function of anti-collision warning as claimed in claim 1, wherein guide rods are fixedly arranged on the left and right sides of the detection plate, the guide rods are slidably connected with the guide sleeves, and the guide rods are welded to the springs.
5. The bridge crane with the function of anti-collision warning as claimed in claim 1, wherein the outer ring frame is composed of a left side frame and a right side frame, the right side frame is slidably disposed on the right side of the left side frame, and the front and rear ends of the right side frame and the front end of the left side frame are respectively provided with an avoidance sliding groove.
6. The bridge crane with the function of anti-collision early warning according to claim 1, wherein a connecting air pipe is further slidably arranged between the upper and lower communicating sleeves, a main air pipe is further fixedly arranged on the top communicating sleeve, and the main air pipe is connected with the suction air pump through internal and external threads.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010668218.XA CN111731999A (en) | 2020-07-13 | 2020-07-13 | Bridge crane with anti-collision early warning function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010668218.XA CN111731999A (en) | 2020-07-13 | 2020-07-13 | Bridge crane with anti-collision early warning function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111731999A true CN111731999A (en) | 2020-10-02 |
Family
ID=72654420
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010668218.XA Withdrawn CN111731999A (en) | 2020-07-13 | 2020-07-13 | Bridge crane with anti-collision early warning function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111731999A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112872443A (en) * | 2021-02-25 | 2021-06-01 | 何阳 | Intelligent numerical control milling machine with power-off structure and power-off method |
-
2020
- 2020-07-13 CN CN202010668218.XA patent/CN111731999A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112872443A (en) * | 2021-02-25 | 2021-06-01 | 何阳 | Intelligent numerical control milling machine with power-off structure and power-off method |
| CN112872443B (en) * | 2021-02-25 | 2024-04-19 | 孙霞 | Intelligent numerical control milling machine with power-off structure and power-off method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111731999A (en) | Bridge crane with anti-collision early warning function | |
| CN204403044U (en) | Cylinder position detector | |
| CN111438446A (en) | Anti-collision device of laser cutting machine | |
| CN103216129B (en) | Steel wire rope looseness and fracture detection device for machinery garage | |
| CN204751974U (en) | Intelligence bridge crane system | |
| CN100419602C (en) | Stacking shop traveller and ground reclaimer interlocking protecting method and apparatus | |
| CN106273639A (en) | Put in place arresting stop and the method for shutting down that puts in place for mold changing systems | |
| CN201567191U (en) | Height positioning device of a forklift | |
| CN207401782U (en) | A kind of solid tyre detects sorting equipment and its system automatically | |
| CN210683098U (en) | Protection device and forklift | |
| CN204607430U (en) | A kind of overhead traveling crane warning steel cable slot disengaging | |
| CN105383882A (en) | Full-automatic material conveying lifting table | |
| CN208345608U (en) | The protective device of truck pulleying | |
| CN205981034U (en) | Blade shaft hole aperture detection device | |
| CN202785360U (en) | Anti-collision safety protection device for double-beam calabash type crane | |
| CN204200206U (en) | The automatic selection control system of horizontal directional drilling machine drilling rod columns | |
| CN105417483A (en) | Combined follow-up filling machine with fixed host | |
| CN2852217Y (en) | Stacking crane and earth surface conveyer interlocking protection device | |
| CN219384518U (en) | Control device for avoiding obstacle during driving | |
| CN103011020A (en) | Control protector for electric forklift truck attachments | |
| CN204569318U (en) | A kind of electri forklift impact protection apparatus | |
| CN210977825U (en) | Take platen pump of liquid level detection function | |
| CN215564569U (en) | Building material discharge apparatus for construction | |
| CN214879677U (en) | Plane protection type buffer stop for hoist | |
| CN217377079U (en) | Travelling safety device of crown block |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20201002 |
|
| WW01 | Invention patent application withdrawn after publication |