CN221113881U - Railway locomotive anti-slip sand box and railway locomotive - Google Patents
Railway locomotive anti-slip sand box and railway locomotive Download PDFInfo
- Publication number
- CN221113881U CN221113881U CN202322488272.8U CN202322488272U CN221113881U CN 221113881 U CN221113881 U CN 221113881U CN 202322488272 U CN202322488272 U CN 202322488272U CN 221113881 U CN221113881 U CN 221113881U
- Authority
- CN
- China
- Prior art keywords
- sand box
- action key
- key
- touch plate
- plate
- 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.)
- Active
Links
- 244000035744 Hura crepitans Species 0.000 title claims abstract description 89
- 230000003137 locomotive effect Effects 0.000 title claims abstract description 46
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 33
- 230000002457 bidirectional effect Effects 0.000 claims abstract description 13
- 239000002184 metal Substances 0.000 claims description 22
- 230000005540 biological transmission Effects 0.000 claims description 5
- 238000003466 welding Methods 0.000 claims description 3
- 239000004576 sand Substances 0.000 abstract description 26
- 238000010586 diagram Methods 0.000 description 4
- 230000009466 transformation Effects 0.000 description 2
- 238000009413 insulation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Landscapes
- Train Traffic Observation, Control, And Security (AREA)
Abstract
The utility model discloses an anti-skid sand box of a railway locomotive and the railway locomotive, which comprise a sand box body and a sand box cover, wherein the sand box cover is movably connected with the sand box body through a rotating shaft; a motor and a speed reducer are arranged on the side edge of the top of the sand box body close to the rotating shaft; a two-way pressing plate is fixedly arranged on the side surface of the sand box cover close to the rotating shaft, and a first action key and a second action key are arranged on the top of the sand box body; when the sand box cover is in a completely closed state, one end of the bidirectional pressing plate presses down a first action key; when the sand box cover is in a complete opening state, the other end of the two-way pressing plate presses a second action key; the motor, the speed reducer, the first action key and the second action key are connected into a power supply and a power supply delay switch together to form a control loop of the motor and the speed reducer. The utility model relieves the technical problems that the sand adding operation is complicated and the sand adding time is influenced because the box cover of the existing sand box for storing the anti-slip sand of the railway locomotive is manually opened and closed.
Description
Technical Field
The utility model relates to the technical field of anti-slip sand feeding of railway locomotives, in particular to an anti-slip sand box of a railway locomotive and the railway locomotive.
Background
When the railway locomotive starts, goes up a slope and brakes, in order to prevent the wheel set from reducing sliding friction with the rail surface and improve the travelling efficiency, the friction force between the wheel set and the rail surface is required to be increased, and the method of sanding the lower rail surface by the driving wheel is generally adopted in China and China. The sand box for storing sand of the locomotive is limited in space, and the sand box needs to be supplemented with anti-slip sand (for short, sand adding) after each section is generally operated or started, climbed and braked for a certain number of times, so that the sand adding operation frequency of the locomotive is very busy. The existing sand box cover for storing anti-slip sand of the railway locomotive is manually opened and closed, so that sand adding operation is complicated, and sand adding time is influenced.
Disclosure of utility model
The utility model aims to solve at least one technical problem and provide a railway locomotive anti-skid sand box and a railway locomotive.
In a first aspect, an embodiment of the utility model provides an anti-skid sand box of a railway locomotive, which comprises a box body and a box cover, wherein the box cover is movably connected with the box body through a rotating shaft, and the rotating shaft is fixedly connected with the box cover; a motor and a speed reducer are arranged on the side edge of the top of the sand box body and close to the rotating shaft, and the motor and the speed reducer are in transmission connection with the rotating shaft through a chain and a roller cone; the side surface of the sand box cover is fixedly provided with a bidirectional pressing plate at a position close to the rotating shaft, the top of the sand box body is provided with a first action key and a second action key, and the first action key and the second action key are respectively arranged at two side positions of the bidirectional pressing plate; when the sand box cover is in a completely closed state, one end of the bidirectional pressing plate presses down the first action key; when the sand box cover is in a complete opening state, the other end of the bidirectional pressing plate presses the second action key; the motor, the speed reducer, the first action key and the second action key are connected into a power supply and a power supply delay switch together to form a control loop of the motor and the speed reducer; the first action key is used for controlling the connection and disconnection of the control loop; the second action key is used for controlling the rotation direction of the motor and the speed reducer.
Further, the two-way pressing plate is formed by combining two pressing plates with obtuse structures, and the two-way pressing plate is fixed at the side surface of the sand box cover through welding.
Further, the second action key comprises a forward wiring loop and a reverse wiring loop; the control loop includes: the motor and the speed reducer are simultaneously connected to one end of a forward wiring loop and one end of a reverse wiring loop of the second action key; the other end of the forward wiring loop of the second action key is connected with the power delay switch, the other end of the reverse wiring loop of the second action key is connected with one end of the first action key, and the other end of the first action key is connected with the power delay switch through a delay starting relay; the power delay switch is connected with the power supply; when the forward wiring loop is conducted, the motor and the speed reducer rotate forward; when the reverse wiring loop is conducted, the motor and the speed reducer are reversed.
Further, the first action key comprises a key, a fixed touch plate, an insulating plate and a movable touch plate; the fixed touch plate is arranged at the lower position of the insulating plate, and the movable touch plate is arranged at the lower position of the fixed touch plate; the key is fixedly connected with the movable touch plate, and a reset spring is arranged below the movable touch plate; the upper surface of the movable touch plate is provided with a conductive metal sheet; when the key is pressed, the first action key is disconnected; when the key is lifted, the conductive metal sheet is contacted with the fixed touch plate, and the first action key is conducted.
Further, the number of the fixed contact plates is four, and the number of the conductive metal sheets is two; two ends of each conductive metal sheet are respectively provided with two fixed contact plates.
Further, the second action key comprises a key, a first fixed touch plate, a second fixed touch plate, an insulating plate and a movable touch plate; the first fixed touch plate is arranged at the lower position of the insulating plate, the movable touch plate is arranged at the lower position of the first fixed touch plate, and the second fixed touch plate is arranged at the lower position of the movable touch plate; the key is fixedly connected with the movable touch plate, and a reset spring is arranged below the movable touch plate; the upper surface and the lower surface of the movable touch plate are provided with conductive metal sheets; the first fixed contact plate is connected with the forward wiring loop, and the second fixed contact plate is connected with the reverse wiring loop; when the key is pressed, the forward wiring loop is disconnected, and the reverse wiring loop is conducted; when the key is lifted, the forward wiring loop is conducted, and the reverse wiring loop is disconnected.
Further, the number of the first fixed touch plate and the second fixed touch plate is four, and the number of the conductive metal sheets on the upper surface and the lower surface of the movable touch plate is two; two ends of each conductive metal sheet are respectively provided with two first fixed contact plates or two second fixed contact plates.
Further, when the power delay switch is turned on, the power delay switch is turned off after a first preset time delay; and when the delay starting relay is electrified, the delay starting relay is attracted after a second preset time.
In a second aspect, an embodiment of the present utility model further provides a railway locomotive, including the railway locomotive anti-slip sand box according to the first aspect.
The utility model provides a railway locomotive anti-slip sand box and a railway locomotive, wherein a motor, a speed reducer and a related control loop are additionally arranged at the rotating shaft part of the sand box cover through the transformation of the sand box, so that the function of automatically opening and closing the sand box cover is achieved, and the technical problems that the sand adding operation is complicated and the sand adding time is influenced due to the fact that the existing sand box cover for storing anti-slip sand of the railway locomotive is manually opened and closed are solved.
Drawings
In order to more clearly illustrate the embodiments of the application or the technical solutions in the prior art, the drawings that are needed in the detailed description of the embodiments and the prior art will be briefly described below, it being obvious that the drawings in the following description are some embodiments of the application and that other drawings may be obtained from these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic front view of a railroad locomotive anti-slip sand box provided by an embodiment of the present utility model;
FIG. 2 is an enlarged schematic view of a portion of the back of a railroad locomotive anti-slip sand box according to an embodiment of the present utility model;
FIG. 3 is an enlarged schematic view of a portion of the back of a railroad locomotive anti-slip sand box in an open position, according to an embodiment of the present utility model;
FIG. 4 is a schematic circuit diagram of a control circuit provided in an embodiment of the present utility model in a closed state of a cover of a sand box;
FIG. 5 is a schematic side view of a first motion key according to an embodiment of the present utility model;
Fig. 6 is a top view of a first action key according to an embodiment of the present utility model;
FIG. 7 is a schematic side view of a second motion key according to an embodiment of the present utility model;
Fig. 8 is a schematic circuit diagram of a control circuit provided by the utility model in an opened state of a sand box cover.
In the figure: 1. the sand box body, 2, the sand box cover, 3, the pivot, 4, motor and reduction gear, 5, chain and cone, 6, two-way clamp plate, 7, first action button, 8, second action button, 9, power, 10, power delay switch, 11, delay start relay, 12, button, 13, fixed touch panel, 14, insulation board, 15, movable touch panel, 16, reset spring, 17, conductive metal sheet, 18, terminal, 19, first fixed touch panel, 20, second fixed touch panel.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
FIG. 1 is a schematic front view of a railroad locomotive anti-slip sand box provided in accordance with an embodiment of the present utility model. As shown in fig. 1, the sand box comprises a sand box body 1 and a sand box cover 2, wherein the sand box cover 2 is movably connected with the sand box body 1 through a rotating shaft 3, and the rotating shaft 3 is fixedly connected with the sand box cover 2. The side edge of the top of the sand box body 1 is provided with a motor and a speed reducer 4 close to the rotating shaft 3, and the motor and the speed reducer 4 are in transmission connection with the rotating shaft 3 through a chain and a roller 5.
Specifically, as shown in fig. 1, a transmission shaft of a motor and a speed reducer 4 and one end of a rotating shaft 3 are respectively provided with a cone, and the two cones are connected through chain transmission.
FIG. 2 is an enlarged schematic view of a rear side of a railroad locomotive anti-slip sand box closed, according to an embodiment of the present utility model. As shown in fig. 2, a bidirectional pressing plate 6 is fixedly arranged on the side surface of the sand box cover 2 near the rotating shaft 3, a first action key 7 and a second action key 8 are arranged on the top of the sand box body 1, and the first action key 7 and the second action key 8 are respectively arranged on two sides of the bidirectional pressing plate 6.
Specifically, as shown in fig. 2, the bi-directional pressing plate 6 is formed by combining two pressing plates with obtuse structures, and the bi-directional pressing plate 6 is fixed at the side position of the sand box cover 2 by welding.
As shown in fig. 2, when the sand box cover 2 is in the fully closed state, the first action key 7 is pressed by one end of the bi-directional pressing plate 6, and at this time, the second action key 8 is in the lifted state.
FIG. 3 is an enlarged schematic view of a rear side of a railroad locomotive anti-slip sand box according to an embodiment of the present utility model when opened. As shown in fig. 3, when the sand box cover 2 is in the fully opened state, the second operation key 8 is pressed by the other end of the bi-directional pressing plate 6, and at this time, the first operation key 7 is in the lifted state.
Fig. 4 is a schematic circuit diagram of a control circuit in a closed state of a sand box cover according to an embodiment of the present utility model. As shown in fig. 4, the motor and speed reducer 4, the first action button 7 and the second action button 8 are connected to a power supply 9 and a power supply delay switch 10 together to form a control loop of the motor and speed reducer 4.
Specifically, the first action key 7 is used for controlling the on and off of the control loop; and the second action key 8 is used for controlling the rotation direction of the motor and the speed reducer 4.
Specifically, the second action key 8 includes a forward wiring circuit and a reverse wiring circuit. As shown in fig. 4, the control loop includes:
The motor and the speed reducer 4 are simultaneously connected with one end of a forward wiring loop and one end of a reverse wiring loop of the second action key 8; the other end of the forward wiring loop of the second action key 8 is connected with a power delay switch 10, the other end of the reverse wiring loop of the second action key 8 is connected with one end of the first action key 7, and the other end of the first action key 7 is connected with the power delay switch 10 through a delay starting relay 11; the power delay switch 10 is connected with the power supply 9.
When the other end of the reverse wiring loop of the second action key 8 is connected with one end of the first action key 7, the two pole wires are reversely connected, so that when the forward wiring loop is conducted, the motor and the speed reducer 4 rotate positively; when the reverse wiring loop is conducted, the motor and the speed reducer 4 are reversed.
Wherein, when the power delay switch 10 is turned on, the power delay switch is turned off after a first preset time delay; the delay start relay 11 is actuated after a second predetermined time delay when energized.
Optionally, the second preset time is the time for adding sand to the locomotive anti-slip sand box, and the first preset time is the time elapsed from the opening of the sand box cover to the completion of sand adding and the closing of the sand box cover.
Alternatively, the power source 9 is a railroad locomotive power source.
Fig. 5 is a schematic side view of a first action key according to an embodiment of the present utility model. As shown in fig. 5, the first action key 7 includes a key 12, a fixed touch panel 13, an insulating plate 14, and a movable touch panel 15; the fixed touch plate 13 is arranged at the lower position of the insulating plate 14, and the movable touch plate 15 is arranged at the lower position of the fixed touch plate 13; the key 12 is fixedly connected with the movable touch plate 15, and a reset spring 16 is arranged below the movable touch plate 15; the upper surface of the movable contact plate 15 is provided with a conductive metal sheet 17.
Fig. 6 is a top view of a first action key according to an embodiment of the present utility model. As shown in fig. 6, the number of the fixed contact plates 13 is four, and the number of the conductive metal sheets 17 is two; two fixed contact plates 13 are respectively arranged at two ends of each conductive metal sheet 17.
As shown in fig. 5 and 6, the fixed contact 13 is externally connected to a post 18.
As shown in fig. 5 and 6, when the key 12 is pressed, the first action key 7 is turned off; when the key 12 is lifted, the conductive metal sheet 17 is in contact with the fixed contact plate 13, and the first operation key 7 is turned on.
Fig. 7 is a schematic side view of a second action key according to an embodiment of the present utility model. As shown in fig. 7, the second action key 8 includes a key 12, a first fixed touch panel 19, a second fixed touch panel 20, an insulating plate 14, and a movable touch panel 15; the first fixed touch plate 19 is arranged at the lower position of the insulating plate 14, the movable touch plate 15 is arranged at the lower position of the first fixed touch plate 19, and the second fixed touch plate 20 is arranged at the lower position of the movable touch plate 15; the key 12 is fixedly connected with the movable touch plate 15, and a reset spring 16 is arranged below the movable touch plate 15; the upper and lower surfaces of the movable contact plate 15 are provided with conductive metal sheets 17.
As shown in fig. 7, the first fixed contact 19 and the second fixed contact 20 each circumscribe the post 18.
Similar to the first action key 7, in the embodiment of the present utility model, the number of the first fixed touch plate 19 and the second fixed touch plate 20 is four, and the number of the conductive metal sheets 17 on the upper surface and the lower surface of the movable touch plate 15 is two; two first fixed contact plates 19 or two second fixed contact plates 20 are respectively arranged at two ends of each conductive metal sheet 17.
Specifically, in the embodiment of the present utility model, the first fixed contact plate 19 is connected to the forward wiring circuit, and the second fixed contact plate 20 is connected to the reverse wiring circuit.
As shown in fig. 7, when the key 12 is pressed, the forward wiring circuit is disconnected, and the reverse wiring circuit is connected; when the key 12 is lifted, the forward wiring loop is turned on, and the reverse wiring loop is turned off.
The working principle of the railway locomotive anti-skid sand box provided by the embodiment of the utility model is as follows:
As shown in fig. 2 and 4, in the closed state of the sand box cover 2, the bidirectional pressing plate 6 presses the first action key 7, and at the same time, the second action key 8 is in a lifted state, and at this time, the reverse wiring loop is in an open state; when the control power delay switch 10 is turned on, the forward wiring loop is turned on, the motor and the speed reducer 4 rotate forward, and the sand box cover 2 is driven to be opened by the chain and the roller 5.
Fig. 8 is a schematic circuit diagram of a control circuit provided in accordance with the present utility model in a case lid open state. As shown in fig. 3 and 8, after the sand box cover 2 is completely opened, the bi-directional pressing plate 6 presses the second action key 8, and the first action key 7 is in a lifted state, at this time, the forward wiring circuit is disconnected, the opening action of the sand box cover 2 is stopped, but the reverse wiring circuit is not conducted yet due to the action of the delay starting relay 11; at this time, a working prepositive state is provided for the sand adding gun, and sand adding operation is carried out on the sand box through the anti-slip sand adding gun.
After sand adding of the sand box is completed, the anti-slip sand adding gun is pulled out, the delay starting relay 11 is attracted after a second preset time, the reverse wiring loop is conducted, the motor and the speed reducer 4 are reversed, and then the sand box cover 2 is driven to be closed.
After the sand box cover 2 is completely closed, the bidirectional pressing plate 6 presses the first action key 7, and meanwhile, the second action key 8 is in a lifting state, at this time, the reverse wiring loop is in a disconnection state, and the motor and the speed reducer 4 stop acting. At this time, after the first preset time, the control power delay switch 10 is turned off, and the entire control loop is powered off.
According to the anti-slip sand box of the railway locomotive and the railway locomotive, the motor, the speed reducer and the related control loop are additionally arranged at the rotating shaft part of the sand box cover through the transformation of the sand box, so that the function of automatically opening and closing the sand box cover is achieved, the technical problems that the sand adding operation is complicated and the sand adding time is influenced due to the fact that the existing sand box cover for storing anti-slip sand of the railway locomotive is manually opened and closed are solved, and meanwhile, the anti-slip sand box can be matched with a full-automatic sand adding system or a semi-automatic sand adding system.
The embodiment of the utility model also provides a railway locomotive, which comprises the railway locomotive anti-slip sand box provided by the embodiment of the utility model.
It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (9)
1. The anti-slip sand box of the railway locomotive comprises a box body and a box cover, wherein the box cover is movably connected with the box body through a rotating shaft, and the rotating shaft is fixedly connected with the box cover; the sand box is characterized in that a motor and a speed reducer are arranged on the side edge of the top of the sand box body and close to the rotating shaft, and the motor and the speed reducer are in transmission connection with the rotating shaft through a chain and a roller cone;
The side surface of the sand box cover is fixedly provided with a bidirectional pressing plate at a position close to the rotating shaft, the top of the sand box body is provided with a first action key and a second action key, and the first action key and the second action key are respectively arranged at two side positions of the bidirectional pressing plate;
When the sand box cover is in a completely closed state, one end of the bidirectional pressing plate presses down the first action key; when the sand box cover is in a complete opening state, the other end of the bidirectional pressing plate presses the second action key;
The motor, the speed reducer, the first action key and the second action key are connected into a power supply and a power supply delay switch together to form a control loop of the motor and the speed reducer;
The first action key is used for controlling the connection and disconnection of the control loop; the second action key is used for controlling the rotation direction of the motor and the speed reducer.
2. The railroad locomotive anti-slip sand box of claim 1, wherein: the two-way pressing plate is formed by combining two pressing plates with obtuse angle structures, and the two-way pressing plate is fixed at the side surface position of the sand box cover through welding.
3. The railroad locomotive anti-slip sand box of claim 1, wherein: the second action key comprises a forward wiring loop and a reverse wiring loop; the control loop includes:
The motor and the speed reducer are simultaneously connected to one end of a forward wiring loop and one end of a reverse wiring loop of the second action key; the other end of the forward wiring loop of the second action key is connected with the power delay switch, the other end of the reverse wiring loop of the second action key is connected with one end of the first action key, and the other end of the first action key is connected with the power delay switch through a delay starting relay; the power delay switch is connected with the power supply;
When the forward wiring loop is conducted, the motor and the speed reducer rotate forward; when the reverse wiring loop is conducted, the motor and the speed reducer are reversed.
4. A railroad locomotive anti-skid sand box as set forth in claim 3, wherein: the first action keys comprise keys, a fixed touch plate, an insulating plate and a movable touch plate; the fixed touch plate is arranged at the lower position of the insulating plate, and the movable touch plate is arranged at the lower position of the fixed touch plate; the key is fixedly connected with the movable touch plate, and a reset spring is arranged below the movable touch plate; the upper surface of the movable touch plate is provided with a conductive metal sheet;
When the key is pressed, the first action key is disconnected; when the key is lifted, the conductive metal sheet is contacted with the fixed touch plate, and the first action key is conducted.
5. The railroad locomotive anti-slip sand box of claim 4, wherein: the number of the fixed contact plates is four, and the number of the conductive metal sheets is two; two ends of each conductive metal sheet are respectively provided with two fixed contact plates.
6. A railroad locomotive anti-skid sand box as set forth in claim 3, wherein: the second action keys comprise keys, a first fixed touch plate, a second fixed touch plate, an insulating plate and a movable touch plate; the first fixed touch plate is arranged at the lower position of the insulating plate, the movable touch plate is arranged at the lower position of the first fixed touch plate, and the second fixed touch plate is arranged at the lower position of the movable touch plate; the key is fixedly connected with the movable touch plate, and a reset spring is arranged below the movable touch plate; the upper surface and the lower surface of the movable touch plate are provided with conductive metal sheets;
the first fixed contact plate is connected with the forward wiring loop, and the second fixed contact plate is connected with the reverse wiring loop;
When the key is pressed, the forward wiring loop is disconnected, and the reverse wiring loop is conducted; when the key is lifted, the forward wiring loop is conducted, and the reverse wiring loop is disconnected.
7. The railroad locomotive anti-slip sand box of claim 6, wherein: the number of the first fixed touch plates and the number of the second fixed touch plates are four, and the number of the conductive metal sheets on the upper surface and the lower surface of the movable touch plate is two; two ends of each conductive metal sheet are respectively provided with two first fixed contact plates or two second fixed contact plates.
8. A railroad locomotive anti-skid sand box as set forth in claim 3, wherein: the power delay switch is turned off after a first preset time delay when turned on; and when the delay starting relay is electrified, the delay starting relay is attracted after a second preset time.
9. A railroad locomotive comprising a railroad locomotive anti-slip sand box as set forth in any one of claims 1-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322488272.8U CN221113881U (en) | 2023-09-13 | 2023-09-13 | Railway locomotive anti-slip sand box and railway locomotive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322488272.8U CN221113881U (en) | 2023-09-13 | 2023-09-13 | Railway locomotive anti-slip sand box and railway locomotive |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221113881U true CN221113881U (en) | 2024-06-11 |
Family
ID=91373306
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322488272.8U Active CN221113881U (en) | 2023-09-13 | 2023-09-13 | Railway locomotive anti-slip sand box and railway locomotive |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221113881U (en) |
-
2023
- 2023-09-13 CN CN202322488272.8U patent/CN221113881U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108316696B (en) | Dislocation vertical bicycle parking device | |
| CN203666654U (en) | Motor train unit and driver controller thereof | |
| CN221113881U (en) | Railway locomotive anti-slip sand box and railway locomotive | |
| CN106976042A (en) | A kind of electric stapler | |
| CN2249802Y (en) | Automatic mechanism of windows | |
| CN204037180U (en) | A kind of automatic blackboard eraser | |
| CN202017755U (en) | Driving gear and starting motor comprising same | |
| CN201105727Y (en) | Flat wagon brake apparatus | |
| CN110387854B (en) | Snow fast removing vehicle running along electric vehicle track | |
| CN206726977U (en) | A kind of operation device of double power supply automatic transfer switch | |
| CN207188676U (en) | A kind of lower stopper of zip fitting machine | |
| CN207484335U (en) | A kind of electromagnet link type Obstruct apparatus for mechanical parking equipment | |
| CN210898033U (en) | Smart power grids switch board | |
| CN202399936U (en) | Operating handle with brake button of electric car | |
| CN106829333A (en) | The conveying arrangement of gear | |
| CN203441255U (en) | Window opener capable of opening window automatically during outage | |
| CN2249885Y (en) | Point contact type automatic door opener for refrigerator | |
| CN205936961U (en) | Fan control return circuit | |
| CN2556775Y (en) | Electric mechanism for high-voltage vacuum isolating load switch | |
| CN203690157U (en) | Manual operation automatic blocking device | |
| CN2346113Y (en) | Electric motor used for frequently start equipment | |
| CN208089477U (en) | Deceleration generating set | |
| CN111535611B (en) | Steel structure factory building roof maintenance robot with automatic repairing function | |
| CN209700409U (en) | A kind of electric flatbed tricycle that usage safety performance is high | |
| CN2210829Y (en) | Operation mechanism of switch for separating railway electric-force lines |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |