CN112792844A - A distraction device and control system for drum brake - Google Patents
A distraction device and control system for drum brake Download PDFInfo
- Publication number
- CN112792844A CN112792844A CN202110118690.0A CN202110118690A CN112792844A CN 112792844 A CN112792844 A CN 112792844A CN 202110118690 A CN202110118690 A CN 202110118690A CN 112792844 A CN112792844 A CN 112792844A
- Authority
- CN
- China
- Prior art keywords
- clamping jaw
- drum brake
- width
- claw
- opening
- 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.)
- Pending
Links
- 210000000078 claw Anatomy 0.000 claims abstract description 50
- 230000007480 spreading Effects 0.000 claims abstract description 30
- 230000007246 mechanism Effects 0.000 claims description 41
- 238000004519 manufacturing process Methods 0.000 claims description 16
- 230000009471 action Effects 0.000 claims description 9
- 238000010276 construction Methods 0.000 claims description 2
- 238000009434 installation Methods 0.000 description 4
- 230000006872 improvement Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25J—MANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES
- B25J18/00—Arms
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25J—MANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES
- B25J15/00—Gripping heads and other end effectors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25J—MANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES
- B25J15/00—Gripping heads and other end effectors
- B25J15/08—Gripping heads and other end effectors having finger members
Landscapes
- Engineering & Computer Science (AREA)
- Robotics (AREA)
- Mechanical Engineering (AREA)
- Load-Engaging Elements For Cranes (AREA)
Abstract
The invention discloses a spreading device for a drum brake, which comprises a wide type pneumatic claw, a first clamping jaw and a second clamping jaw, wherein the wide type pneumatic claw is arranged on the drum brake; the first clamping jaw and the second clamping jaw are respectively arranged at two ends of the wide type pneumatic jaw, and the initial width of the first clamping jaw and the initial width of the second clamping jaw are smaller than or equal to the width of an opening of a brake shoe of the drum brake; when the spreading device and the drum brake are installed together, the first clamping jaw and the second clamping jaw are respectively installed on two sides of a brake shoe opening of the drum brake; the first clamping jaw and the second clamping jaw are driven to move through the working state of the wide type pneumatic jaw, so that the state of the opening of the brake shoe is changed, and the problem that the brake shoe opening needs to be manually operated in the prior art is solved. The invention also provides a control system for the expanding device of the drum brake.
Description
Technical Field
The invention relates to a brake spreading tool, in particular to a spreading device and a control system for a drum brake.
Background
Currently, the brakes on trucks on the market today are typically drum brakes. During production, cam rollers are installed in brake shoes of drum brakes. When the cam roller is installed, a spring on the drum brake needs to be pulled manually to open the brake shoe opening, and then the cam roller can be installed in the brake shoe. However, the spring pulling force needs to be larger than 60KG, and is far larger than the range of the force that the human hand can bear, so that the operation difficulty is large, the operation is not changed, and meanwhile, the operation can be completed only by matching two persons, and the problem of overlarge manpower consumption is solved.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides a distraction device for a drum brake, which can solve the problems of difficult operation of the drum brake and the like in the prior art.
The invention also aims to provide a control system for a spreading device of a drum brake, which can solve the problems of difficult operation of the drum brake and the like in the prior art.
One of the purposes of the invention is realized by adopting the following technical scheme:
a spreading device for a drum brake comprises a wide air claw, a first clamping jaw and a second clamping jaw; the first clamping jaw and the second clamping jaw are respectively arranged at two ends of the wide type pneumatic jaw, and the initial width of the first clamping jaw and the initial width of the second clamping jaw are smaller than or equal to the width of an opening of a brake shoe of the drum brake; when the spreading device and the drum brake are installed together, the first clamping jaw and the second clamping jaw are respectively installed on two sides of a brake shoe opening of the drum brake;
the wide type pneumatic claw is inflated to drive the first clamping jaw and the second clamping jaw to move, so that the widths of the first clamping jaw and the second clamping jaw are increased, and the opening of the brake shoe is in an increased state;
the first clamping jaw and the second clamping jaw are reset through air leakage of the wide type air jaw, so that the width of the first clamping jaw and the width of the second clamping jaw are restored to the initial width, and the opening of the brake shoe is restored to the initial state.
Further, the device comprises a spring balancer and a pull rope; one end of the pull rope is fixedly connected with the wide type pneumatic claw, and the other end of the pull rope is connected with the spring balancer; the wide pneumatic claw is suspended below the spring balancer through a pull rope; the spreading mechanism is moved to a production station under the action of the spring balancer by pulling the spreading mechanism downwards so as to be mounted on the drum brake; by loosening the spreading mechanism, the spreading mechanism is restored to the initial position under the action of the spring balancer.
Further, the spring balancer is hung on external equipment through a hook, so that the spreading mechanism is hung above the corresponding production station.
Further, the wide type gas claw is communicated with the inflation equipment through an electric valve; inflation or deflation of the wide type gas claw is controlled through the electric valve, and then the width of the first clamping jaw and the second clamping jaw is controlled to be increased or the initial width is restored.
Further, the electric valve is a three-position five-way valve.
Furthermore, a handle mounting plate is arranged on the wide type pneumatic claw, and a handle is arranged on the handle mounting plate.
Furthermore, the outer surface of the handle is provided with anti-skid projections.
Furthermore, a fixing part is arranged on the handle mounting plate; the stretching mechanism is suspended below the spring balancer through the fixing part by the stretching rope.
The second purpose of the invention is realized by adopting the following technical scheme:
a control system for a drum brake spreader device, comprising a spreader device for a drum brake, an electric button and a PLC controller, as employed in one of the objects of the present invention; the electric button is arranged on the opening mechanism; the PLC controller is electrically connected with the electric button, and the electric button is used for generating a control command to control the wide type gas claw of the spreading device for the drum brake to inflate when receiving an electric signal of the electric button, so that the first clamping jaw and the second clamping jaw are driven to move, the width of the first clamping jaw and the width of the second clamping jaw are increased or the initial width is recovered, and the opening of the drum brake is increased or reset.
Further, the electric button and the handle are of an integral structure; wherein, be equipped with the handle mounting panel on strutting the mechanism, the handle is located on the handle mounting panel.
Compared with the prior art, the invention has the beneficial effects that:
the invention can greatly reduce the labor intensity of workers, can be operated by a single person and can also reduce the damage to the surface of a product.
Drawings
FIG. 1 is a schematic structural view of a distracting device for a drum brake according to the present invention;
FIG. 2 is a schematic view of a distracting mechanism for a drum brake provided by the present invention;
FIG. 3 is a schematic view of the internal structure of the wide gas claw in FIG. 1;
fig. 4 is a control block diagram of the expanding device for the drum brake provided by the invention.
In the figure: 1. a wide gas claw; 2. a handle; 3. a spring balancer; 4. hooking; 5. pulling a rope; 6. a first jaw; 7. a second jaw; 11. a first support column; 12. a second support column; 13. a third support column; 14. a fourth support column; 15. a wide gas claw body; 16. a first jaw mounting section; 17. a second jaw mounting section; 8. a handle mounting plate; 9. a fixed part.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that any combination of the embodiments or technical features described below can be used to form a new embodiment without conflict.
The invention provides a spreading device for a drum brake, which can be operated by a single person without labor and damage to the surface of a product.
As shown in fig. 1-3, the present invention provides a preferred embodiment, specifically including a distraction mechanism.
Wherein, the opening mechanism comprises a wide type gas claw 1, a first clamping jaw 6 and a second clamping jaw 7. The first clamping jaw 6 and the second clamping jaw 7 are respectively arranged at two ends of the wide type gas claw 1, and the initial width of the first clamping jaw 6 and the second clamping jaw 7 is smaller than or equal to the width of a brake shoe opening of the drum brake.
In use, the first clamping jaw 6 is provided on one side of the opening of the brake shoe of the drum brake and the second clamping jaw 7 is provided on the other side of the opening of the brake shoe of the drum brake. The wide type air claw 1 is inflated to drive the first clamping jaw 6 and the second clamping jaw 7 to move, so that the widths of the first clamping jaw 6 and the second clamping jaw 7 are increased, and the opening of the brake shoe is in an increased state. At this moment, the staff can place the product in the brake shoe inside. This process need not artifically carry out other operations to drum brake, only needs to prop opening mechanism's first clamping jaw 6, second clamping jaw 7 and locate brake shoe open-ended both sides, aerifys through wide type gas claw 1 and can realize the increase of brake shoe opening, has solved among the prior art and has needed the manpower to make hard, difficult operation scheduling problem when the brake shoe opening increases. The device is simple in operation, saves manpower, and simultaneously can also greatly shorten the time of product installation, and then improves product production efficiency.
When the installation of the product is completed, the wide air claw 1 is deflated, the first clamping jaw 6 and the second clamping jaw 7 are reset under the driving of the wide air claw 1, the width of the first clamping jaw 6 and the width of the second clamping jaw 7 are restored to the initial width, the opening of the brake shoe is restored to the initial state, and the opening mechanism is separated from the drum brake.
Preferably, the initial width of the first and second jaws 6, 7 is less than or equal to the width of the brake shoe opening, facilitating the positioning of the first and second jaws 6, 7 on either side of the brake shoe opening and facilitating the separation of the spreading mechanism from the brake shoe opening by the operator.
Preferably, the present embodiment further includes a spring balancer 3. The spring balancer 3 hangs the wide air claw 1 below the spring balancer 3 through the pull rope 5. The spring balancer 3 is hung on other external equipment through a hook to realize the fixation of the strutting device. For example, the spring balancer 3 is hung above or near the corresponding production station by a hook, so that the spreading mechanism is hung below the spring balancer 3, namely above the production station or an accessory, by the pull rope 5. When the spreading mechanism is used, a worker pulls the spreading mechanism, so that the spreading mechanism moves to the corresponding position under the action of the spring balancer 3.
The spring balancer 3 stores energy of the coil spring therein, and the suspended spreader mechanism can be in a weightless state. When the opening mechanism works, a worker can move the opening mechanism to a production station under the action of the spring balancer 3 by only slightly exerting force; when the opening mechanism is not used, the opening mechanism is suspended above the production station through the spring balancer 3, so that the influence on the movement of products on the production station is avoided, the use of a user is greatly facilitated, the labor intensity of workers is reduced, and the production efficiency is improved.
Preferably, as shown in fig. 2, the wide gas claw 1 includes a wide gas claw body 15, a support column penetrating the wide gas claw body 15, and a first claw mounting portion 16 and a second claw mounting portion 17 respectively disposed at two ends of the wide gas claw 1.
The support columns include a first support column 11, a second support column 12, a third support column 13 and a fourth support column 14. One end of the first support column 11 and one end of the second support column 12 are fixed to the first jaw mounting portion 16. The first jaw 6 is mounted on the first jaw mounting portion 16.
One end of the third support column 13 and one end of the fourth support column 14 are fixed to the second jaw mounting portion 17. The second jaw 7 is mounted on the second jaw mounting portion 17.
When the wide type gas claw 1 is inflated, the first support column 11 and the second support column 12 move towards the opposite direction of the wide type gas claw body 15, and then the first clamping jaw mounting part 16 and the first clamping jaw 6 are driven to move; meanwhile, the third support column 13 and the fourth support column 14 move in the opposite direction of the wide pneumatic gripper body 15, and further drive the second gripper mounting portion 17 and the second gripper 7 to move, that is, the first gripper 6 and the second gripper 7 move relatively, and the widths of the first gripper 6 and the second gripper 7 are larger than the initial width. Because the first clamping jaw 6 and the second clamping jaw 7 are respectively arranged on two sides of the opening of the brake shoe, the widths of the first clamping jaw 6 and the second clamping jaw 7 are increased, and then the opening of the brake shoe is driven to be in an increased state, so that a worker can install a product in the brake shoe.
Preferably, the wide gas claw 1 is communicated with the inflating device through an electric valve. Further, the electric valve is electrically connected with an external PLC controller. After the strutting mechanism and the drum brake are installed, the work of the electric valve is controlled through the PLC controller, the wide type gas claw 1 is inflated, the wide type gas claw 1 drives the width increasing of the first clamping jaw 6 and the second clamping jaw 7 which are arranged at the two ends, and then the opening of the brake shoe of the drum brake is propped open, so that a worker can install the product at the corresponding position.
After the product is installed, the PLC controller controls the electric valve, so that the wide type pneumatic claw 1 is reset, the width of the first clamping claw 6 and the width of the second clamping claw are restored to the initial width, and the drum brake is reset.
Preferably, the electrically operated valve is a three-position, five-way valve. The three-position five-way valve is electrically connected with the PLC. That is, the wide air claw 1 is communicated with external inflation equipment through the three-position five-way valve, and the working state of the three-position five-way valve is controlled through the PLC controller so as to control the working state of the wide air claw 1, and further the opening of the drum brake is opened and reset.
Preferably, the top of the wide gas claw 1 is provided with a handle mounting plate 8. The handle mounting plate 8 is provided with a handle 2. The staff accessible grips handle 2, will strut the mechanism and move to corresponding position. Preferably, the handle 2 is provided with an anti-slip bulge so as to increase the force of pulling the distraction mechanism by a worker and save labor.
The handle mounting plate 8 is also provided with a fixing part 9. One end of the pull rope 5 is fixedly connected with the fixing part 9, and the other end is connected with the spring balancer 3. When the staff holds the handle 2 and pulls the distraction mechanism, the spring balancer 3 is driven through the pull rope 5, and the distraction mechanism is moved to the corresponding production station under the action of the spring balancer 3 so as to be installed with the drum brake.
Preferably, the embodiment also provides a control system for the expanding device of the drum brake, which is shown in fig. 1 to 4 and comprises the expanding device, the electric button and the PLC provided by the embodiment.
Wherein, the electric button is electrically connected with the PLC controller. When the electric button is pressed down, the PLC receives the electric signal and controls the work of the three-position five-way valve according to the electric signal, and then the working state of the wide type pneumatic claw 1 is controlled.
Preferably, the motorized button is mounted on the distracting mechanism. More preferably, the power button is mounted on the handle mounting plate 8. In particular, the electric push-button is of integral construction with the handle 2.
The strutting device provided by the invention can greatly save labor, thereby improving the installation efficiency of products and the production efficiency, and simultaneously, the surface of equipment can not be damaged.
Preferably, the present embodiment further provides a control flow for the expanding device of the drum brake:
(1) firstly, the spreading mechanism is pulled to move to a production station under the action of the spring balancer 3, and a first clamping jaw 6 and a second clamping jaw 7 of the spreading mechanism are installed at an opening of a drum brake.
(2) Then through the work of PLC controller control electric valve, and then aerify wide type gas claw 1, drive (2) then through the work of PLC controller control electric valve, and then aerify wide type gas claw 1, drive the width increase of first clamping jaw 6 and second clamping jaw 7 to make the opening grow of drum brake.
(3) And installing the product at a corresponding position of the drum brake.
(4) After the product installation is accomplished, through the work of PLC controller control electric valve, and then lose heart wide type gas claw 1, resume initial width with the width of first clamping jaw 6 and second clamping jaw 7 to make drum brake's opening reset.
(5) The spreading mechanism is released, and the spreading mechanism is restored to the original hanging position under the action of the spring balancer 3.
The invention has the characteristics of simple structure, labor saving in operation, improvement of personnel assembly efficiency, further improvement of production efficiency, no damage to products and the like.
The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are within the protection scope of the present invention.
Claims (10)
1. A spreading device for a drum brake is characterized by comprising a wide type pneumatic claw, a first clamping claw and a second clamping claw; the first clamping jaw and the second clamping jaw are respectively arranged at two ends of the wide type pneumatic jaw, and the initial width of the first clamping jaw and the initial width of the second clamping jaw are smaller than or equal to the width of an opening of a brake shoe of the drum brake; when the spreading device and the drum brake are installed together, the first clamping jaw and the second clamping jaw are respectively installed on two sides of a brake shoe opening of the drum brake;
the wide type pneumatic claw is inflated to drive the first clamping jaw and the second clamping jaw to move, so that the widths of the first clamping jaw and the second clamping jaw are increased, and the opening of the brake shoe is in an increased state;
the first clamping jaw and the second clamping jaw are reset through air leakage of the wide type air jaw, so that the width of the first clamping jaw and the width of the second clamping jaw are restored to the initial width, and the opening of the brake shoe is restored to the initial state.
2. A spreader device for a drum brake according to claim 1, including a spring balancer and a pull cord; one end of the pull rope is fixedly connected with the wide type pneumatic claw, and the other end of the pull rope is connected with the spring balancer; the wide pneumatic claw is suspended below the spring balancer through a pull rope; the spreading mechanism is moved to a production station under the action of the spring balancer by pulling the spreading mechanism downwards so as to be mounted on the drum brake; by loosening the spreading mechanism, the spreading mechanism is restored to the initial position under the action of the spring balancer.
3. A spreader device for a drum brake according to claim 2, in which the spring balancer is hung from an external apparatus by a hook so that the spreader mechanism is suspended above the corresponding production station.
4. A bracing arrangement for a drum brake according to claim 2, wherein the wide air jaws communicate with the inflation apparatus via electrically operated valves; inflation or deflation of the wide type gas claw is controlled through the electric valve, and then the width of the first clamping jaw and the second clamping jaw is controlled to be increased or the initial width is restored.
5. A spreader device as claimed in claim 4, in which the electrically operated valve is a three-position, five-way valve.
6. A bracing arrangement for a drum brake according to claim 2, wherein the wide type air claw is provided with a handle mounting plate on which a handle is provided.
7. A bracing arrangement for a drum brake according to claim 6, wherein the outer surface of the handle is provided with cleats.
8. A spreader device for a drum brake according to claim 6, in which the handle mounting plate is provided with a fixing portion; the stretching mechanism is suspended below the spring balancer through the fixing part by the stretching rope.
9. A control system for a drum brake distractor, comprising a distractor for a drum brake according to any one of claims 1 to 8, an electric push button and a PLC controller; the electric button is arranged on the opening mechanism; the PLC controller is electrically connected with the electric button, and the electric button is used for generating a control command to control the wide type gas claw of the spreading device for the drum brake to inflate when receiving an electric signal of the electric button, so that the first clamping jaw and the second clamping jaw are driven to move, the width of the first clamping jaw and the width of the second clamping jaw are increased or the initial width is recovered, and the opening of the drum brake is increased or reset.
10. The control system for a drum brake distractor device according to claim 9, wherein the electric button is of one piece construction with the handle; wherein, be equipped with the handle mounting panel on strutting the mechanism, the handle is located on the handle mounting panel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110118690.0A CN112792844A (en) | 2021-01-28 | 2021-01-28 | A distraction device and control system for drum brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110118690.0A CN112792844A (en) | 2021-01-28 | 2021-01-28 | A distraction device and control system for drum brake |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112792844A true CN112792844A (en) | 2021-05-14 |
Family
ID=75812488
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110118690.0A Pending CN112792844A (en) | 2021-01-28 | 2021-01-28 | A distraction device and control system for drum brake |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112792844A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114131541A (en) * | 2021-12-02 | 2022-03-04 | 湖南运达机电科技股份有限公司 | Machining device for drum brake |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106217401A (en) * | 2016-08-21 | 2016-12-14 | 苏州三孚自动化科技有限公司 | The special jaw of goods of furniture for display rather than for use |
| CN206764275U (en) * | 2017-03-23 | 2017-12-19 | 上海力柯机电科技有限公司 | A kind of simple Circlip apparatus |
| WO2018074424A1 (en) * | 2016-10-20 | 2018-04-26 | 黒崎播磨株式会社 | Plate, and plate holding device and holding method |
| CN207593828U (en) * | 2017-12-18 | 2018-07-10 | 昆山鸿志犀自动化机电设备有限公司 | A kind of no back clearance precisely clamps device for spreading |
| CN210790756U (en) * | 2019-08-27 | 2020-06-19 | 西平县华鼎电气装备有限责任公司 | Pneumatic wrench suspension device |
| CN210939313U (en) * | 2019-10-22 | 2020-07-07 | 湖南沁森高科新材料有限公司 | Device for installing Y-shaped rubber ring on membrane element |
| CN212123087U (en) * | 2020-03-23 | 2020-12-11 | 潍坊路加精工有限公司 | O-shaped ring opening device |
| CN214352546U (en) * | 2021-01-28 | 2021-10-08 | 成都辰启电子科技有限公司 | A distraction device for drum brake |
-
2021
- 2021-01-28 CN CN202110118690.0A patent/CN112792844A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106217401A (en) * | 2016-08-21 | 2016-12-14 | 苏州三孚自动化科技有限公司 | The special jaw of goods of furniture for display rather than for use |
| WO2018074424A1 (en) * | 2016-10-20 | 2018-04-26 | 黒崎播磨株式会社 | Plate, and plate holding device and holding method |
| CN206764275U (en) * | 2017-03-23 | 2017-12-19 | 上海力柯机电科技有限公司 | A kind of simple Circlip apparatus |
| CN207593828U (en) * | 2017-12-18 | 2018-07-10 | 昆山鸿志犀自动化机电设备有限公司 | A kind of no back clearance precisely clamps device for spreading |
| CN210790756U (en) * | 2019-08-27 | 2020-06-19 | 西平县华鼎电气装备有限责任公司 | Pneumatic wrench suspension device |
| CN210939313U (en) * | 2019-10-22 | 2020-07-07 | 湖南沁森高科新材料有限公司 | Device for installing Y-shaped rubber ring on membrane element |
| CN212123087U (en) * | 2020-03-23 | 2020-12-11 | 潍坊路加精工有限公司 | O-shaped ring opening device |
| CN214352546U (en) * | 2021-01-28 | 2021-10-08 | 成都辰启电子科技有限公司 | A distraction device for drum brake |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114131541A (en) * | 2021-12-02 | 2022-03-04 | 湖南运达机电科技股份有限公司 | Machining device for drum brake |
| CN114131541B (en) * | 2021-12-02 | 2023-10-24 | 湖南运达机电科技股份有限公司 | A processingequipment for drum brake |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN214352546U (en) | A distraction device for drum brake | |
| CN112792844A (en) | A distraction device and control system for drum brake | |
| CN205294625U (en) | Prefabricated plate stone tongs | |
| US3584836A (en) | Portable force applicator | |
| CN211029747U (en) | Piston pin hole detection device | |
| CA1180994A (en) | Method and apparatus for removing tires from rims | |
| CN115224632B (en) | Unmanned aerial vehicle frame line structure for electric power iron tower | |
| US4261090A (en) | Tire cross chain applying and removing apparatus | |
| CN206968707U (en) | A kind of systematization chassis for automobile tire maintenance | |
| US4678163A (en) | Tire handling apparatus | |
| CN2517546Y (en) | Novel installation pliers for baffle ring | |
| CN108482023B (en) | Device and method for mounting support body in tire | |
| CN206985649U (en) | A kind of system for automobile tire maintenance | |
| CN219509225U (en) | Auxiliary installation device for inverted conical glass curtain wall | |
| CN219478572U (en) | Tool is picked to high altitude shaddock | |
| CN218434378U (en) | Emergency safety escape device for elevator | |
| CN220660818U (en) | Portable maintenance tool case | |
| CN219156354U (en) | Curtain cloth roll hoisting machine | |
| CN214237160U (en) | Clamping device for machinery convenient to installation is fixed | |
| CN220467502U (en) | Auxiliary support operation platform for weak current installation | |
| CN116865062B (en) | Electric insulating rod grounding wire traction structure and operation method thereof | |
| CN111878158B (en) | Mine rope hanging and pulling rescue device | |
| CN108944283A (en) | One kind is blown out emergency safety device installation tool and its application method | |
| CN215470148U (en) | Polishing equipment for watch processing | |
| CN115890896B (en) | Automatic paper system of drawing of intelligence gypsum board production line |
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 |