CN203903208U - Warning device for opening of hopper fence and concrete mixing device with same - Google Patents
Warning device for opening of hopper fence and concrete mixing device with same Download PDFInfo
- Publication number
- CN203903208U CN203903208U CN201420173065.1U CN201420173065U CN203903208U CN 203903208 U CN203903208 U CN 203903208U CN 201420173065 U CN201420173065 U CN 201420173065U CN 203903208 U CN203903208 U CN 203903208U
- Authority
- CN
- China
- Prior art keywords
- fence
- hopper
- rotating shaft
- shaft
- alarming device
- 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.)
- Expired - Lifetime
Links
- 239000000203 mixture Substances 0.000 claims description 7
- 230000001960 triggered effect Effects 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000003756 stirring Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 4
- 239000004744 fabric Substances 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 238000012512 characterization method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
- B28C5/08—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions using driven mechanical means affecting the mixing
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/02—Conveying or working-up concrete or similar masses able to be heaped or cast
- E04G21/04—Devices for both conveying and distributing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)
- Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
Abstract
The utility model discloses a warning device for the opening of a hopper fence and a concrete mixing device with the warning device. The warning device comprises a fence, a revolving shaft of the fence, a trigger cam and a travel switch, wherein the fence is connected with the revolving shaft of the fence, and is integrally rotated along with the revolving shaft of the fence; the trigger cam is directly and fixedly connected at one end of the revolving shaft of the fence, and is integrally rotated along with the revolving shaft of the fence; the travel switch is arranged adjacent to the trigger cam and sends a guard signal for stopping the rotation of a stirring shaft when the trigger cam is rotated to a set angle. The trigger cam is directly connected with the revolving shaft of the fence in the warning device provided by the utility model, so that the device is simpler and more reliable in structure, convenient to assemble and maintain, easy to wash and low in manufacture cost.
Description
Technical field
The utility model relates to concrete pumping machinery technical field, particularly relates to the concrete central mix plant that a kind of hopper fence is opened alarming device and had it.
Background technology
Vehicle is in pumpdown work progress; can often open hopper fence; clean hopper and beat the buildup staying after pump; or change the consumable accessorys such as S pipe, cheater plate, cut ring; for guaranteeing that thereby pumping vehicle surprisingly rotates stirring vane in hopper to cause the event generation of hurting sb.'s feelings because opening by mistake machine; common at hopper fence rotating shaft place installed protection device in industry, when realizing fence and opening, shaft stops operating.
Fig. 1 is the structural representation that hopper fence of the prior art is opened alarming device, and Fig. 2 is that schematic diagram is looked on the right side that the fence of hopper shown in Fig. 1 is opened alarming device.Hopper fence is opened alarming device and is comprised half-watt 107 on fence rotating shaft 101, fence screen cloth 102, limit shaft 104, locating clamp plate 105, cam 106, permanent seat, binding bolt 108 and fixing lower half-watt 109.Cam 106 adopts and is welded to connect with limit shaft 104, locating clamp plate 105 is joined and is welded to hopper wallboard 103 outsides, fix half-watt 109 to join and be welded to hopper wallboard 103 inner sides, upper and lower half-watt 107 is fixed by binding bolt 108, limit shaft 104 connects fence rotating shaft 101 and outside cam 106, by locating clamp plate 105 bolt axial limitings.Like this, when fence screen cloth 102 rotates, cam 106 synchronous rotaries, drive travel switch work.This kind of technical scheme complex structure and cost are high, and cam 106 is connected with fence rotating shaft 101 by limit shaft 104, a little less than integral rigidity, are easily subject to external force to affect flexural deformation, affect cam and travel switch is normally worked.
Therefore, wish a kind of hopper fence and open that alarming device overcomes or at least alleviate above-mentioned defect.
Utility model content
The purpose of this utility model is to provide a kind of hopper fence to open that alarming device overcomes or at least alleviate above-mentioned defect.
For achieving the above object, the utility model provides a kind of hopper fence to open alarming device, and described hopper fence is opened alarming device and comprised: fence; Fence rotating shaft, described fence is connected with described fence rotating shaft, and with described fence rotating shaft unitary rotation; Trigger cam, it is directly fixedly connected on the place, one end of described fence rotating shaft, and with described fence rotating shaft unitary rotation; And travel switch, it closes on the setting of described triggering cam, and when described triggering cam rotates to set angle position, described travel switch sends the shaft alarm signal that stops operating.
Preferably, described hopper fence is opened alarming device and is further comprised shaft drive motor, described shaft drive motor is for driving the rotation of shaft, and be associated with described travel switch, in the situation that described stroke sends shaft and stops operating alarm signal, described shaft drive motor shuts down.
Preferably, described travel switch is serially connected on the feed circuit of described shaft drive motor, and described travel switch is normally closed switch, when described travel switch is triggered cam triggering, travel switch disconnects, thereby cuts off the feed circuit of described shaft drive motor.
Preferably, described hopper fence is opened alarming device and is further comprised controller, described controller is electrically connected to described shaft drive motor and travel switch, and the alarm signal that stops operating of the shaft based on receiving from described travel switch, and shaft drive motor is quit work.
Preferably, described triggering cam is connected to described fence rotating shaft by two threaded connectors, and described threaded connector is arranged in parallel and is parallel to the axis of described fence rotating shaft.
Preferably, described triggering cam is connected to described fence rotating shaft by a threaded connector and a locating dowel pin, and described threaded connector and locating dowel pin are arranged in parallel and are parallel to the axis of described fence rotating shaft.
Preferably, described hopper fence is opened alarming device and is further comprised: hopper wallboard, and described fence rotating shaft is through described hopper wallboard; And axle bed, it arranges regularly with respect to described hopper wallboard, for supporting described fence rotating shaft.
Preferably, described hopper fence is opened alarming device and is further comprised adapter plate, described adapter plate is by socket bolt and add cap nut and be fixed to described hopper wallboard, wherein, described socket bolt is through described adapter plate and described hopper wallboard, describedly add the inner side that cap nut is positioned at described hopper wallboard, described axle bed is fixed to described adapter plate by binding bolt.
Preferably, described hopper fence is opened alarming device and is further comprised: clamp, and described clamp is arranged between described adapter plate and described axle bed, and described binding bolt screws through described adapter plate and clamp to the respective screw hole on described axle bed; And thrust snap ring, described thrust snap ring is connected on the circular groove arranging in described fence rotating shaft periphery, and with described clamp and axle bed axially against, and limit the position to axial of described fence rotating shaft and described clamp and axle bed.
The utility model also provides a kind of concrete central mix plant, and described concrete central mix plant comprises that hopper fence as above opens alarming device.
At hopper fence of the present utility model, open in alarming device, trigger cam and be directly connected with fence rotating shaft, thereby structure is simpler, reliable, easy to assembly, safeguard and clean easy, low cost of manufacture.
Accompanying drawing explanation
Fig. 1 is the structural representation that hopper fence of the prior art is opened alarming device.
Fig. 2 is that schematic diagram is looked on the right side that the fence of hopper shown in Fig. 1 is opened alarming device.
Fig. 3 opens the structural representation of alarming device according to the hopper fence of the utility model one embodiment.
Fig. 4 is that schematic diagram is looked on the left side that the fence of hopper shown in Fig. 3 is opened alarming device.
Reference numeral:
| 101 | Fence rotating shaft | 202 | Adapter plate |
| 102 | Fence screen cloth | 203 | Trigger cam |
| 103 | Hopper wallboard | 204 | Fence |
| 104 | Limit shaft | 205 | Fence rotating shaft |
| 105 | Locating clamp plate | 206 | Thrust snap ring |
| 106 | Cam | 207 | Axle bed |
| 107 | Half-watt on permanent seat | 208 | Binding bolt |
| 108 | Binding bolt | 209 | Hopper wallboard |
| 109 | Fixing lower half-watt | 210 | Travel switch |
| 201 | Clamp | ? | ? |
The specific embodiment
For object, technical scheme and advantage that the utility model is implemented are clearer, below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is further described in more detail.In the accompanying drawings, same or similar label represents same or similar element or has the element of identical or similar functions from start to finish.Described embodiment is the utility model part embodiment, rather than whole embodiment.Below by the embodiment being described with reference to the drawings, be exemplary, be intended to for explaining the utility model, and can not be interpreted as restriction of the present utility model.Embodiment based in the utility model, those of ordinary skills are not making the every other embodiment obtaining under creative work prerequisite, all belong to the scope of the utility model protection.Below in conjunction with accompanying drawing, embodiment of the present utility model is elaborated.
In description of the present utility model, it will be appreciated that, term " " center ", " longitudinally ", " laterally ", " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", orientation or the position relationship of indications such as " outward " are based on orientation shown in the drawings or position relationship, only the utility model and simplified characterization for convenience of description, rather than device or the element of indication or hint indication must have specific orientation, with specific orientation structure and operation, therefore can not be interpreted as the restriction to the utility model protection domain.
According to the hopper fence of the utility model one wide in range embodiment, opening alarming device comprises: fence; Fence rotating shaft; Trigger cam; And travel switch.Described fence is connected with described fence rotating shaft, and with described fence rotating shaft unitary rotation.Described triggering cam is directly fixedly connected on the place, one end of described fence rotating shaft, and with described fence rotating shaft unitary rotation.Described travel switch closes on the setting of described triggering cam, when described triggering cam rotates to set angle position, described travel switch is triggered by described triggering cam, and sends the shaft alarm signal (or also can be called fence open alarm signal) that stops operating.Thus, other devices can stop operating alarm signal and shaft is stopped operating based on described shaft.
Hopper fence at above-described embodiment is opened in alarming device, trigger cam and be directly connected with fence rotating shaft, thereby structure is simpler, reliable, easy to assembly, safeguard and clean easy, low cost of manufacture.
Fig. 3 opens the structural representation of alarming device according to the hopper fence of the utility model one embodiment.Fig. 4 is that schematic diagram is looked on the left side that the fence of hopper shown in Fig. 3 is opened alarming device.
Hopper fence shown in Fig. 3-4 is opened alarming device and is comprised: fence 204, fence rotating shaft 205, triggering cam 203 and travel switch 210.
Fence 204 is connected with fence rotating shaft 205, and with fence rotating shaft 205 unitary rotation.Trigger the place, one end that cam 203 is directly fixedly connected on fence rotating shaft 205, and with fence rotating shaft 205 unitary rotation.
Travel switch 210 closes on and triggers cam 203 and arrange, and when triggering cam 203 and rotate to set angle position, travel switch 210 is triggered by described triggering cam, and sends the shaft alarm signal (or also can be called fence open alarm signal) that stops operating.Other devices can receive the described shaft alarm signal that stops operating, and stop operating alarm signal and shaft is stopped operating based on described shaft; Can also carry out sound and light alarm, near operating personal prompting.
Hopper fence is opened alarming device and is further comprised shaft drive motor (not shown).Shaft drive motor is for driving the rotation of shaft, and is associated with travel switch 210, and in the situation that travel switch sends shaft and stops operating alarm signal, shaft drive motor shuts down.In one embodiment, travel switch is connected in the feed circuit of shaft drive motor.In another embodiment, travel switch 210 is by chip controls drive motor.
Advantageously, travel switch 210 is serially connected on the feed circuit of shaft drive motor, and travel switch 210 is normally closed switch, at travel switch 210, is triggered cam 203 while triggering, travel switch 210 disconnects, thereby cuts off the feed circuit of shaft drive motor.
Hopper fence is opened alarming device and is further comprised controller (not shown, for example, to be chip mentioned above).Controller is electrically connected to shaft drive motor and travel switch 210, and the alarm signal that stops operating of the shaft based on receiving from travel switch 210, and shaft drive motor is quit work.Controller can be controlled shaft drive motor in any suitable manner.For example, controller can carry driving circuit, also can drive shaft drive motor by modes such as electro-magnet switch or aerotrons.
In illustrated embodiment, trigger cam 203 and be connected to fence rotating shaft 205 by two threaded connectors, threaded connector is arranged in parallel and is parallel to the axis of fence rotating shaft 205, and adopting is threaded makes its easy accessibility, easily changes and cleans.Described threaded connector can be bolt, double-screw bolt or screw; For the sake of security, the accessories such as check washer can also be set.
In a not shown embodiment, trigger cam and be connected to fence rotating shaft 205 by a threaded connector and a locating dowel pin, threaded connector and locating dowel pin are arranged in parallel and are parallel to the axis of fence rotating shaft 205.
In the embodiment shown in fig. 3, hopper fence is opened alarming device and is further comprised: hopper wallboard 209 and axle bed 207.And fence rotating shaft 205 is through hopper wallboard 209.Axle bed 207 arranges regularly with respect to hopper wallboard 209, for supporting fence rotating shaft 205.
In illustrated embodiment, hopper fence is opened alarming device and is further comprised adapter plate 202.And adapter plate 202 is by socket bolt and add cap nut and be fixed to hopper wallboard 209, advantageously, socket bolt, through adapter plate 202 and hopper wallboard 209, adds the inner side that cap nut is positioned at hopper wallboard 209, adopts and adds the good dustproof effect that cap nut makes the inner side of hopper wallboard 209.And axle bed 207 is fixed to adapter plate 202 by binding bolt 208.Be understandable that, the utility model is not limited to above-mentioned concrete structure.
In illustrated embodiment, hopper fence is opened alarming device and is further comprised: clamp 201 and thrust snap ring 206.Clamp 201 is arranged between adapter plate 202 and axle bed 207, and binding bolt 208 screws through adapter plate 202 and clamp 201 to the respective screw hole on axle bed 207, and it is fixed.Thrust snap ring 206 is connected on the circular groove arranging in fence rotating shaft 205 peripheries, and with clamp 201 and axle bed 207 axially against, and the position to axial of the rotating shaft 205 of restriction fence and clamp 201 and axle bed 207 rotarily drives triggering cam 203 corotation thereby realize fence rotating shaft 205.
The utility model also provides a kind of concrete central mix plant, and described concrete central mix plant comprises that hopper fence as above opens alarming device.
At hopper fence of the present utility model, open in alarming device, trigger cam and be directly connected with fence rotating shaft, thereby structure is simpler, reliable, easy to assembly, safeguard and clean easy, low cost of manufacture.
Finally it is to be noted: above embodiment only, in order to the technical solution of the utility model to be described, is not intended to limit.Although the utility model is had been described in detail with reference to previous embodiment, those of ordinary skill in the art is to be understood that: its technical scheme that still can record aforementioned each embodiment is modified, or part technical characterictic is wherein equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution depart from the spirit and scope of each embodiment technical scheme of the utility model.
Claims (10)
1. hopper fence is opened an alarming device, it is characterized in that, comprising:
Fence;
Fence rotating shaft, described fence is connected with described fence rotating shaft, and with described fence rotating shaft unitary rotation;
Trigger cam, it is directly fixedly connected on the place, one end of described fence rotating shaft, and with described fence rotating shaft unitary rotation; And
Travel switch, it closes on the setting of described triggering cam, and when described triggering cam rotates to set angle position, described travel switch sends the shaft alarm signal that stops operating.
2. hopper fence as claimed in claim 1 is opened alarming device, it is characterized in that, further comprise shaft drive motor, described shaft drive motor is for driving the rotation of shaft, and be associated with described travel switch, in the situation that described stroke sends shaft and stops operating alarm signal, described shaft drive motor shuts down.
3. hopper fence as claimed in claim 2 is opened alarming device, it is characterized in that, described travel switch is serially connected on the feed circuit of described shaft drive motor, described travel switch is normally closed switch, when described travel switch is triggered cam triggering, travel switch disconnects, thereby cuts off the feed circuit of described shaft drive motor.
4. hopper fence as claimed in claim 2 is opened alarming device, it is characterized in that, further comprise controller, described controller is electrically connected to described shaft drive motor and travel switch, and the alarm signal that stops operating of the shaft based on receiving from described travel switch, and shaft drive motor is quit work.
5. hopper fence as claimed in claim 1 is opened alarming device, it is characterized in that, described triggering cam is connected to described fence rotating shaft by two threaded connectors, and described threaded connector is arranged in parallel and is parallel to the axis of described fence rotating shaft.
6. hopper fence as claimed in claim 1 is opened alarming device, it is characterized in that, described triggering cam is connected to described fence rotating shaft by a threaded connector and a locating dowel pin, and described threaded connector and locating dowel pin are arranged in parallel and are parallel to the axis of described fence rotating shaft.
7. hopper fence as claimed in claim 1 is opened alarming device, it is characterized in that, further comprises:
Hopper wallboard, described fence rotating shaft is through described hopper wallboard; And
Axle bed, it arranges regularly with respect to described hopper wallboard, for supporting described fence rotating shaft.
8. hopper fence as claimed in claim 7 is opened alarming device, it is characterized in that, further comprise adapter plate, described adapter plate is by socket bolt and add cap nut and be fixed to described hopper wallboard, wherein, described socket bolt is through described adapter plate and described hopper wallboard, described in add the inner side that cap nut is positioned at described hopper wallboard, described axle bed is fixed to described adapter plate by binding bolt.
9. hopper fence as claimed in claim 8 is opened alarming device, it is characterized in that, further comprise: clamp, described clamp is arranged between described adapter plate and described axle bed, and described binding bolt screws through described adapter plate and clamp to the respective screw hole on described axle bed; And
Thrust snap ring, described thrust snap ring is connected on the circular groove arranging in described fence rotating shaft periphery, and with described clamp and axle bed axially against, and limit the position to axial of described fence rotating shaft and described clamp and axle bed.
10. a concrete central mix plant, is characterized in that, comprises that hopper fence is opened alarming device as claimed in any one of claims 1-9 wherein.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420173065.1U CN203903208U (en) | 2014-04-10 | 2014-04-10 | Warning device for opening of hopper fence and concrete mixing device with same |
| PCT/CN2015/070269 WO2015154550A1 (en) | 2014-04-10 | 2015-01-07 | Device for warning of opening hopper fence and concrete mixing plant having same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420173065.1U CN203903208U (en) | 2014-04-10 | 2014-04-10 | Warning device for opening of hopper fence and concrete mixing device with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203903208U true CN203903208U (en) | 2014-10-29 |
Family
ID=51777496
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420173065.1U Expired - Lifetime CN203903208U (en) | 2014-04-10 | 2014-04-10 | Warning device for opening of hopper fence and concrete mixing device with same |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN203903208U (en) |
| WO (1) | WO2015154550A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015154550A1 (en) * | 2014-04-10 | 2015-10-15 | 北汽福田汽车股份有限公司 | Device for warning of opening hopper fence and concrete mixing plant having same |
| CN110254985A (en) * | 2019-07-05 | 2019-09-20 | 北京朗新明环保科技有限公司 | A kind of electronic bucket attachment device and method |
| CN114382673A (en) * | 2021-12-31 | 2022-04-22 | 河南和远机械科技有限公司 | Hopper cavity prevention device of concrete wet spraying machine |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108560919A (en) * | 2018-07-02 | 2018-09-21 | 广西广厦环保科技有限公司 | A kind of fence of concrete pump convenient for cleaning |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201650645U (en) * | 2010-03-04 | 2010-11-24 | 徐工集团工程机械股份有限公司建设机械分公司 | Concrete pump |
| CN102192122B (en) * | 2010-03-04 | 2013-02-27 | 徐工集团工程机械股份有限公司建设机械分公司 | Concrete pump |
| CN102116086B (en) * | 2010-12-21 | 2012-09-05 | 徐工集团工程机械股份有限公司建设机械分公司 | Pumping hopper device |
| CN201953072U (en) * | 2010-12-21 | 2011-08-31 | 徐工集团工程机械股份有限公司建设机械分公司 | Engineering machine and pumping hopper apparatus thereof |
| CN202611248U (en) * | 2012-03-20 | 2012-12-19 | 长沙科达建设机械制造有限公司 | Hopper safety device for concrete spraying manipulator |
| EP2838701A4 (en) * | 2012-04-18 | 2016-01-06 | Ali Nemdil | Concrete pump |
| CN203903208U (en) * | 2014-04-10 | 2014-10-29 | 北汽福田汽车股份有限公司 | Warning device for opening of hopper fence and concrete mixing device with same |
-
2014
- 2014-04-10 CN CN201420173065.1U patent/CN203903208U/en not_active Expired - Lifetime
-
2015
- 2015-01-07 WO PCT/CN2015/070269 patent/WO2015154550A1/en active Application Filing
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015154550A1 (en) * | 2014-04-10 | 2015-10-15 | 北汽福田汽车股份有限公司 | Device for warning of opening hopper fence and concrete mixing plant having same |
| CN110254985A (en) * | 2019-07-05 | 2019-09-20 | 北京朗新明环保科技有限公司 | A kind of electronic bucket attachment device and method |
| CN114382673A (en) * | 2021-12-31 | 2022-04-22 | 河南和远机械科技有限公司 | Hopper cavity prevention device of concrete wet spraying machine |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2015154550A1 (en) | 2015-10-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200927 Address after: No.202 Xuanfu street, Xuanhua District, Zhangjiakou, Hebei Province Patentee after: Hebei Leisa Heavy Construction Machinery Co.,Ltd. Address before: 102206 Changping District City, Shahe, Sha Yang Road, Beijing Patentee before: BEIQI FOTON MOTOR Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141029 |
|
| CX01 | Expiry of patent term |