CN209904657U - Mechanical linkage pedal device for independent passenger room of medium-sized fire truck - Google Patents
Mechanical linkage pedal device for independent passenger room of medium-sized fire truck Download PDFInfo
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- CN209904657U CN209904657U CN201920536392.1U CN201920536392U CN209904657U CN 209904657 U CN209904657 U CN 209904657U CN 201920536392 U CN201920536392 U CN 201920536392U CN 209904657 U CN209904657 U CN 209904657U
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- pedal
- force taking
- taking piece
- pull rod
- mechanical linkage
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Abstract
The utility model discloses a mechanical linkage pedal device for an independent passenger room of a medium-sized fire truck, which comprises a pedal bracket and a pedal component integrated at the front side of the pedal bracket; the power take-off mechanism is integrated in the pedal bracket; the connecting mechanism is connected with the power taking mechanism to drive the pedal assembly to be unfolded and folded; the power take-off mechanism is rotationally connected with a door frame rotating shaft of the fire fighting truck, and the unfolding and folding states of the pedal assembly are switched through the opening and closing of a door of the fire fighting truck. The utility model discloses a footboard device simple structure, adaptability are high: the whole structure is composed of a pure mechanical structure, and the method for realizing linkage of the pedal assembly through displacement of the power takeoff mechanism and the connecting mechanism has the advantages of simple structure, simple working principle, high stability and high reliability.
Description
Technical Field
The utility model relates to a fire control unit technical field especially relates to an independent passenger room of medium-sized fire engine is with mechanical linkage footboard device.
Background
With the continuous development of domestic economy, the demand of fire fighting trucks is increasing. As well as the various configuration requirements of the vehicle by firefighters. At present, the market demand of tank vehicles is about five thousand per year, and the demand of vehicles (hereinafter referred to as medium-sized fire trucks) with liquid carrying capacity of 4-6 tons is about two thousand. The chassis of the medium-sized fire truck is generally a double-row cab, 4-5 fighters can be carried except for drivers, but the double-row cab has higher cost and crowded space, and even individual fighters cannot be equipped with devices such as an aerial calling device and the like, so that the requirements of modern fire fighting on the number and the configuration of the fighters cannot be met. In order to change the current situation, manufacturers add an independent passenger room to meet the requirements of users. The additionally arranged independent passenger room can carry 8-9 fighters, has low cost and abundant space, is provided with the air exhaler and can meet the requirements of users. This form of vehicle is currently the predominant structure of medium-sized foam vehicles. The specific structure is shown in fig. 1 to 3;
the pedal adopting the cylinder structure form in the prior art does not have any problem in principle and is also widely used in the market, but the pedal also has some defects aiming at the invention:
(1) the gas circuit leakproofness of above-mentioned structure to whole car requires very high: fire-fighting vehicles are generally parked in a garage, and the fire-fighting vehicles need to be taken out of the garage once the fire-fighting vehicles start in case of police; and if the whole vehicle gas circuit appears airtight untight or the condition of gas leakage this moment, then the vehicle footboard can't be transferred, leads to the time of giving an alarm to increase.
(2) Influence operation personnel safety when the mechanism goes wrong: once the mechanism breaks down or the cylinder is locked and fixed, the pedal cannot be put down. If the driver and the passengers do not pay attention at this moment, the situation of getting-off and stepping empty can occur, and personal safety is influenced. Especially, the pedal gas circuit sealing is not tight in the driving process, and the pedal gas circuit can be scratched to other vehicles, so that serious traffic accidents occur.
(3) The mechanism is complicated, with high costs, and later maintenance is unchangeable: the mechanism consists of a gas circuit system, a pull rod mechanism, an electric control system and the like. The complex structure leads to higher cost and difficult maintenance.
(4) If the parts have problems and need to be replaced, the gas circuit needs to be cut off firstly; at this time, if the decompression device is not provided, the cylinder rebounds, which causes danger.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a mechanical linkage footboard device is used to the independent passenger room of medium-sized fire engine that novel structure, safe and reliable, with low costs, fault rate are low, maintainability is good.
In order to achieve the above object, the present invention provides the following technical solutions:
the utility model discloses an independent passenger room of medium-sized fire engine is with mechanical linkage footboard device, this footboard device are integrated respectively in the both sides of fire engine, and this footboard device mainly includes:
a pedal bracket;
a pedal assembly integrated at a front side of the pedal bracket;
the power take-off mechanism is integrated in the pedal bracket;
the connecting mechanism is connected with the power taking mechanism to drive the pedal assembly to be unfolded and folded;
the power take-off mechanism is rotationally connected with a door frame rotating shaft of the fire fighting truck, and the unfolding and folding states of the pedal assembly are switched through the opening and closing of a door of the fire fighting truck.
Further, the pedal bracket is assembled at the lower part of a bottom beam of a door frame of the fire engine operating room;
the power taking mechanism comprises a first power taking piece connected with the door frame rotating shaft, one end, far away from the door frame rotating shaft, of the first power taking piece is connected with a second power taking piece through a first pull rod in a transmission mode, the far end of the second power taking piece is connected with a third power taking piece through a second pull rod in a transmission mode, and the power output end of the third power taking piece is connected with a third pull rod in a transmission mode;
the far end of the third pull rod drives the pedal assembly to be unfolded and folded through a parallelogram linkage;
the first force taking piece, the second force taking piece and the third force taking piece form the force taking mechanism;
the first pull rod, the second pull rod and the third pull rod form the connecting mechanism.
Further, the parallelogram linkage comprises bent plates integrated on two sides of the front side of the pedal bracket and two groups of lug plates assembled on the bent plates;
the pedal assembly comprises a first pedal and a second pedal;
each group of ear plates corresponds to one pedal;
a connecting plate driven by the third pull rod is arranged between the adjacent ear plates;
the bent plate is provided with an arc-shaped groove for the movement of the ear plate;
the power take-off mechanism and the connecting mechanism drive the ear plate to move along the arc-shaped groove to drive the first pedal and the second pedal to be synchronously unfolded or folded.
Further, when the first pedal and the second pedal are folded, the front side surface of the pedal bracket is blocked by the first pedal and the second pedal;
the first pedal and the second pedal form a decorative surface on the surface facing the outside when being folded.
Further, the first force taking piece is configured to be capable of rotating 0-85 degrees around the door frame rotating shaft, the second force taking piece is in a triangular structure, and one end of the second force taking piece rotates around the rotating shaft in a rotating connection mode through the rotating shaft.
Furthermore, the power take-off mechanism and the connecting part of the connecting mechanism are connected through universal joints.
In the technical scheme, the utility model provides an independent passenger room of medium-sized fire engine is with mechanical linkage footboard device, it has following beneficial effect:
1. the utility model discloses a footboard device simple structure, adaptability are high: the whole structure is composed of a pure mechanical structure, and the method for realizing linkage of the pedal assembly through displacement of the force taking mechanism and the connecting mechanism is simple in structure;
2. the utility model discloses a footboard device reliability is high: the whole device is a mechanical structure assembly welding part, and has the advantages of simple working principle, high stability and high reliability.
3. The utility model discloses a fault rate is low: purely mechanically formed transmissions have a lower failure rate than pneumatic transmissions.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to these drawings.
FIG. 1 is a schematic diagram of a prior art medium size fire truck;
FIG. 2 is a schematic view of a prior art medium size fire truck illustrating a configuration when the pedals are retracted;
FIG. 3 is a schematic illustration of a prior art medium size fire truck with the foot plate deployed;
fig. 4 is a schematic structural view of a mechanical linkage pedal device for an independent passenger room of a medium-sized fire truck according to an embodiment of the present invention;
fig. 5 is a side view of a mechanical linkage pedal device for an independent passenger compartment of a medium-sized fire truck according to an embodiment of the present invention;
fig. 6 is a schematic view of a transmission structure of a power take-off mechanism and a connecting mechanism of a mechanical linkage pedal device for an independent passenger room of a medium-sized fire truck according to an embodiment of the present invention.
Description of reference numerals:
1. a pedal bracket; 2. a connecting seat; 3. a bottom beam; 4. a first pedal; 5. a second pedal; 6. an ear plate; 7. bending a plate; 8. a connecting plate; 9. an arc-shaped slot; 10. a first force taking sheet; 11. a second force taking sheet; 12. a third force taking sheet; 13. a first pull rod; 14. a second pull rod; 15. and a third pull rod.
Detailed Description
In order to make the technical solution of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings.
See FIGS. 4-6;
the utility model discloses an independent passenger room of medium-sized fire engine is with mechanical linkage footboard device, this footboard device integrate respectively in the both sides of fire engine, and this footboard device mainly includes:
a pedal bracket 1;
a pedal assembly integrated at the front side of the pedal bracket 1;
the power take-off mechanism is integrated in the pedal bracket 1;
the connecting mechanism is connected with the power taking mechanism to drive the pedal assembly to unfold and fold;
the power take-off mechanism is rotationally connected with a door frame rotating shaft of the fire fighting truck to switch the unfolding and folding states of the pedal assembly through the opening and closing of a door of the fire fighting truck.
Specifically, the present embodiment discloses a pedal device integrated on a medium fire fighting truck, wherein because both sides of a passenger compartment of the fire fighting truck are provided with doors, the pedal device of the present embodiment needs to be symmetrically arranged on both sides of the fire fighting truck, and specifically arranged on the lower portion of a bottom beam 3 of a door frame of the fire fighting truck; and a force taking mechanism and a connecting mechanism integrated on the fire door form force transmission, specifically, the rotating force generated by a rotating shaft of a door frame when the fire door is opened is transmitted to the force taking mechanism and the connecting mechanism, and the force is transmitted to the pedal assembly by the force taking mechanism and the connecting mechanism so as to complete the unfolding and folding of the pedal assembly. The device adopts a pure mechanical connection and transmission mode, and has the advantages of good structural stability and good applicability.
The force taking mechanism in the embodiment comprises a first force taking piece 10 connected with a door frame rotating shaft, one end, far away from the door frame rotating shaft, of the first force taking piece 10 is in transmission connection with a second force taking piece 11 through a first pull rod 13, the far end of the second force taking piece 11 is in transmission connection with a third force taking piece 12 through a second pull rod 14, and the power output end of the third force taking piece 12 is in transmission connection with a third pull rod 15;
the distal end of the third pull rod 15 drives the pedal assembly to be unfolded and folded through the parallelogram linkage;
the first force taking piece 10, the second force taking piece 11 and the third force taking piece 12 in the embodiment form a force taking mechanism;
the first pull rod 13, the second pull rod 14 and the third pull rod 15 in this embodiment constitute a connecting mechanism.
Based on the above structure connection relationship, once the door frame rotation axis rotates, the first force taking piece 10 rotates along with the door frame rotation axis, the first force taking piece 10 drives the first pull rod 13 to horizontally displace, then, the first pull rod 13 drives the second force taking piece 11 to horizontally rotate while displacing, the second force taking piece 11 drives the third force taking piece 12 at the far end of the second pull rod 14 to vertically move through the horizontal displacement of the second pull rod 14, and finally, the third force taking piece 12 drives the third pull rod 15 connected with the third force taking piece to vertically displace. Along with the transmission process, the far end of the third pull rod 15 finally drives the parallelogram linkage to rotate up and down to realize the unfolding and folding of the pedal assembly.
Preferably, the parallelogram linkage in the present embodiment comprises a bent plate 7 integrated on both sides of the front side of the pedal bracket 1, and two sets of ear plates 6 assembled on the bent plate 7;
the pedal assembly comprises a first pedal 4 and a second pedal 5;
each group of ear plates 6 corresponds to a pedal;
and a connecting plate 8 driven by a third pull rod 15 is arranged between the adjacent ear plates 6;
the bent plate 7 is provided with an arc-shaped groove 9 for the ear plate 6 to move;
the power take-off mechanism and the connecting mechanism drive the ear plate 6 to move along the arc-shaped groove 9 to drive the first pedal 4 and the second pedal 5 to be synchronously unfolded or folded.
The embodiment specifically introduces a specific structure of a parallelogram linkage part which is in transmission connection with the force taking mechanism and the connecting mechanism and receives transmitted force, the main purpose of designing the parallelogram linkage part is to design the structural characteristics of a parallelogram, the parallelogram linkage part can deform along with the force transmission so as to realize the position change of the upper ear plate 6, and the position change of the ear plate 6 drives the position change of a corresponding pedal connected with the parallelogram linkage part to finally realize the unfolding and the folding of the pedal.
In order to ensure that the structure is more compact, when the first pedal 4 and the second pedal 5 are folded, the first pedal 4 and the second pedal 5 block the front side surface of the pedal bracket 1; the outward facing surfaces of the first step 4 and the second step 5 are formed as decorative surfaces when they are folded.
The first force taking piece 10 is configured to be capable of rotating 0-85 degrees around the door frame rotating shaft, the second force taking piece 11 is in a triangular structure, and one end of the second force taking piece 11 rotates around the rotating shaft in a rotating connection mode through the rotating shaft; in addition, in order to form the hinge connection between each part of the power take-off mechanism and the connecting mechanism, the power take-off mechanism and the connecting mechanism in the embodiment are connected through universal joints.
In the technical scheme, the utility model provides an independent passenger room of medium-sized fire engine is with mechanical linkage footboard device, it has following beneficial effect:
the utility model discloses a footboard device simple structure, adaptability are high: the whole structure is composed of a pure mechanical structure, and the method for realizing linkage of the pedal assembly through displacement of the force taking mechanism and the connecting mechanism is simple in structure;
the utility model discloses a footboard device reliability is high: the whole device is a mechanical structure assembly welding part, and has the advantages of simple working principle, high stability and high reliability.
The utility model discloses a fault rate is low: purely mechanically formed transmissions have a lower failure rate than pneumatic transmissions.
While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the present invention. Accordingly, the drawings and description are illustrative in nature and should not be construed as limiting the scope of the invention.
Claims (6)
1. The utility model provides a medium-sized fire engine independent passenger room is with mechanical linkage footboard device, this footboard device integrates respectively in the both sides of fire engine, its characterized in that, this footboard device mainly includes:
a pedal bracket (1);
a pedal assembly integrated on the front side of the pedal bracket (1);
the power take-off mechanism is integrated in the pedal bracket (1);
the connecting mechanism is connected with the power taking mechanism to drive the pedal assembly to be unfolded and folded;
the power take-off mechanism is rotationally connected with a door frame rotating shaft of the fire fighting truck, and the unfolding and folding states of the pedal assembly are switched through the opening and closing of a door of the fire fighting truck.
2. The mechanical linkage pedal device for the independent passenger room of the medium fire engine as claimed in claim 1, wherein the pedal bracket (1) is assembled at the lower part of a door frame bottom beam (3) of an operation room of the fire engine;
the force taking mechanism comprises a first force taking piece (10) connected with the door frame rotating shaft, one end, far away from the door frame rotating shaft, of the first force taking piece (10) is connected with a second force taking piece (11) in a transmission mode through a first pull rod (13), the far end of the second force taking piece (11) is connected with a third force taking piece (12) in a transmission mode through a second pull rod (14), and the power output end of the third force taking piece (12) is connected with a third pull rod (15) in a transmission mode;
the distal end of the third pull rod (15) drives the pedal assembly to be unfolded and folded through a parallelogram linkage;
the first force taking piece (10), the second force taking piece (11) and the third force taking piece (12) form the force taking mechanism;
the first pull rod (13), the second pull rod (14) and the third pull rod (15) form the connecting mechanism.
3. The mechanical linkage pedal device for the independent passenger compartment of the medium fire engine according to claim 2, wherein the parallelogram linkage comprises bent plates (7) integrated at both sides of the front side of the pedal bracket (1), and two sets of lug plates (6) assembled on the bent plates (7);
the pedal assembly comprises a first pedal (4) and a second pedal (5);
each group of the ear plates (6) corresponds to a pedal;
a connecting plate (8) driven by the third pull rod (15) is arranged between the adjacent ear plates (6);
the bent plate (7) is provided with an arc-shaped groove (9) for the movement of the ear plate (6);
the power take-off mechanism and the connecting mechanism drive the ear plate (6) to move along the arc-shaped groove (9) to drive the first pedal (4) and the second pedal (5) to be synchronously unfolded or folded.
4. The mechanical linkage pedal device for the independent passenger room of the medium fire engine according to claim 3, wherein when the first pedal (4) and the second pedal (5) are folded, the first pedal (4) and the second pedal (5) block the front side surface of the pedal bracket (1);
the surfaces of the first pedal (4) and the second pedal (5) facing the outside when being folded are formed into decoration surfaces.
5. The mechanical linkage pedal device for the independent passenger compartment of the medium fire engine as recited in claim 2, wherein the first force taking piece (10) is configured to be rotatable about the door frame rotation axis by 0 ° to 85 °, the second force taking piece (11) is configured to have a triangular structure, and one end of the second force taking piece (11) is rotatably connected via a rotation shaft and rotatable about the rotation shaft.
6. The mechanical linkage pedal device for the independent passenger room of the medium fire engine as claimed in claim 5, wherein the power take-off mechanism and the connecting mechanism connecting part are connected through a universal joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920536392.1U CN209904657U (en) | 2019-04-19 | 2019-04-19 | Mechanical linkage pedal device for independent passenger room of medium-sized fire truck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920536392.1U CN209904657U (en) | 2019-04-19 | 2019-04-19 | Mechanical linkage pedal device for independent passenger room of medium-sized fire truck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209904657U true CN209904657U (en) | 2020-01-07 |
Family
ID=69044666
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920536392.1U Expired - Fee Related CN209904657U (en) | 2019-04-19 | 2019-04-19 | Mechanical linkage pedal device for independent passenger room of medium-sized fire truck |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209904657U (en) |
-
2019
- 2019-04-19 CN CN201920536392.1U patent/CN209904657U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200107 |