Pedal control mechanism of safety valve of caterpillar truck and caterpillar truck

Abstract

The utility model provides a caterpillar conveyor safety valve's footrest control mechanism and caterpillar conveyor, the footrest control mechanism includes: safety valve, is used for setting in the main frame of caterpillar conveyor, safety valve transition pull rod is used for setting between safety valve and standing frame, the top end of safety valve transition pull rod is used for with safety valve valve rod end articulates and connects, the middle part of safety valve transition pull rod is used for with the main frame of caterpillar conveyor articulates and connects, the bottom end of safety valve transition pull rod is suspended and located one side of standing frame, footrest, sets up in the standing frame of caterpillar conveyor, footrest with standing frame articulates and connects, push -and -pull drive mechanism sets up between footrest and the bottom end of safety valve transition pull rod, push -and -pull drive mechanism under the rotation of footrest pushes the bottom end of safety valve transition pull rod and swings. The application has improved the working stability and control stability of caterpillar conveyor safety valve.

Description

Technical Field

[0001] This utility model relates to the field of heavy machinery and equipment technology, and in particular to a foot pedal control mechanism for a safety valve of a tracked transport vehicle and the tracked transport vehicle. Background Technology

[0002] Tracked transporters, as a special type of engineering vehicle, are widely used in mining, construction sites, agriculture, and other fields due to their unique track design and powerful off-road capabilities. With the rapid development of China's economy and the continuous advancement of infrastructure construction, the market demand for tracked transporters is also constantly growing.

[0003] Currently, tracked transporters are generally equipped with a pilot solenoid valve and a limit switch located below the stand. To operate the pilot solenoid valve, the driver stands on the stand with their right foot on a foot pedal. Depressing the foot pedal activates the roller of the limit switch, causing the solenoid valve to operate upon receiving the signal, thus functioning as a safety valve. While existing tracked transporters can operate the pilot solenoid valve via a foot pedal, this foot-operated limit switch control method has the following drawbacks: the solenoid valve and limit switch are prone to damage; the limit switch requires precise installation; slight errors can cause the foot pedal to miss the limit switch roller, leading to control failure and affecting the stability of the safety valve's operation. Therefore, improving the operational and controllable stability of the safety valve in tracked transporters is an urgent technical problem to be solved. Summary of the Invention

[0004] In view of this, the present invention provides a foot pedal control mechanism for a safety valve of a tracked transport vehicle and a tracked transport vehicle, so as to eliminate or improve one or more defects existing in the prior art.

[0005] In one aspect of this utility model, a foot pedal control mechanism for a safety valve of a tracked transport vehicle is provided, the foot pedal control mechanism comprising:

[0006] Safety valves are installed on the main frame of tracked transporters;

[0007] A safety valve transition rod is used to be installed between the safety valve and the standing frame. The top end of the safety valve transition rod is used to be hinged to the valve stem end of the safety valve. The middle part of the safety valve transition rod is used to be hinged to the main frame of the tracked transport vehicle. The bottom end of the safety valve transition rod is suspended and located on one side of the standing frame.

[0008] A foot pedal is mounted on the standing frame of the tracked transport vehicle, and the foot pedal is hinged to the standing frame.

[0009] A push-pull transmission mechanism is disposed between the foot pedal and the bottom end of the safety valve transition rod. The push-pull transmission mechanism pushes the bottom end of the safety valve transition rod to swing under the rotation of the foot pedal.

[0010] In some embodiments of this utility model, the push-pull transmission mechanism includes an auxiliary transmission component and a pull rod push-pull component. A first end of the auxiliary transmission component is hinged to the foot pedal, and a second end of the auxiliary transmission component is hinged to the first end of the pull rod push-pull component. The second end of the pull rod push-pull component is used to push the bottom end of the safety valve transition rod, causing the safety valve transition rod to swing; and / or,

[0011] The safety valve is a hydraulic valve.

[0012] In some embodiments of this utility model, the auxiliary transmission component includes an auxiliary push-pull component and an auxiliary swing component. The first end of the auxiliary push-pull component is hinged to the foot pedal via a first hinge axis. The second end of the auxiliary push-pull component is hinged to the first end of the auxiliary swing component via a second hinge axis. The second end of the auxiliary swing component is hinged to the first end of the pull rod push-pull component via a third hinge axis. The middle part of the auxiliary swing component is hinged to the standing frame via a fourth hinge axis.

[0013] In some embodiments of this utility model, the moving directions of the auxiliary push-pull member and the pull rod push-pull member are parallel to each other, and the axis of the fourth hinge shaft is perpendicular to the moving direction of the pull rod push-pull member and the axis of the first hinge shaft hinge.

[0014] In some embodiments of this utility model, the bottom end of the foot pedal is provided with a connecting ear plate, and the connecting ear plate is connected to the standing frame through a fifth hinge shaft. The connecting ear plate is provided with a first mounting hole for installing the first hinge shaft and a second mounting hole for installing the fifth hinge shaft. The first mounting hole is located on the side of the second mounting hole away from the foot pedal.

[0015] In some embodiments of this utility model, the symmetrical center plane of the safety valve transition rod is perpendicular to the top end face of the standing frame; and / or,

[0016] The standing frame is provided with a guide bushing, and the pull rod push-pull component moves along the guide hole of the guide bushing.

[0017] In some embodiments of this utility model, the moving direction of the valve stem of the safety valve is parallel to the moving direction of the pull rod push-pull member.

[0018] In some embodiments of this utility model, the foot pedal control mechanism includes a torsion spring, the ends of the two torsion arms of the torsion spring being connected to the bottom of the foot pedal and the bottom of the standing frame, respectively.

[0019] In some embodiments of this utility model, both the auxiliary push-pull member and the pull rod push-pull member are U-shaped fork structures, and the fork arms of the two U-shaped fork structures are respectively hinged to the two ends of the auxiliary swing member.

[0020] According to another aspect of the present invention, a tracked transport vehicle is also provided, the tracked transport vehicle including a foot pedal control mechanism for a tracked transport vehicle safety valve as described in any of the above embodiments.

[0021] The foot pedal control mechanism for the safety valve of the tracked transporter disclosed in the above embodiments of this utility model converts the rotational motion of the foot pedal into the linear movement of the valve stem of the safety valve through a push-pull transmission mechanism and a safety valve transition rod, thereby realizing the opening and closing of the safety valve. This mechanism adopts a mechanical control method, which reduces the failure rate of components and maintenance costs, and improves the service life of the entire machine. Furthermore, this mechanism is easy to install and operate, improves the working stability and control stability of the safety valve of the tracked transporter, realizes the rapid and efficient loading of the tracked transporter, and thus improves the working efficiency of the tracked transporter.

[0022] Furthermore, the foot-operated control mechanism uses a hydraulic valve as a safety valve, which further improves the working stability of the safety valve, thereby improving the working efficiency of the tracked transport vehicle.

[0023] Additional advantages, objects, and features of this invention will be set forth in part in the description which follows, and will in part become apparent to those skilled in the art upon review of the description, or may be learned by practice of the invention. The objects and other advantages of this invention can be realized and obtained by means of the structures specifically pointed out in the description and drawings.

[0024] Those skilled in the art will understand that the objectives and advantages achievable with this invention are not limited to those specifically described above, and that the above and other objectives achievable with this invention will become clearer from the following detailed description. Attached Figure Description

[0025] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, do not constitute a limitation thereof. The components in the drawings are not drawn to scale but are merely for illustrating the principles of the present invention. For ease of illustration and description of certain parts of the present invention, corresponding portions in the drawings may be enlarged, i.e., may appear larger relative to other components in an exemplary device actually manufactured according to the present invention. In the drawings:

[0026] Figure 1 This is a schematic diagram of the foot pedal control mechanism for the safety valve of a tracked transport vehicle according to an embodiment of the present invention. Figure 1 .

[0027] Figure 2 This is a schematic diagram of the foot pedal control mechanism for the safety valve of a tracked transport vehicle according to an embodiment of the present invention. Figure 2 .

[0028] Figure 3 This is a schematic diagram of the standing frame assembly of a foot pedal control mechanism according to an embodiment of the present invention.

[0029] Figure 4 for Figure 3 Side view of the standing frame assembly shown.

[0030] Figure 5 This is a schematic diagram of the structure of a standing frame according to an embodiment of the present invention.

[0031] Figure 6 This is a schematic diagram of the structure of an auxiliary push-pull component according to an embodiment of the present invention.

[0032] Figure 7 This is a schematic diagram of the foot pedal structure according to an embodiment of the present invention.

[0033] Figure 8 This is a schematic diagram of the structure of an auxiliary swinging component according to an embodiment of the present invention.

[0034] Figure 9 This is a schematic diagram of the structure of a pull rod push-pull component according to an embodiment of the present utility model.

[0035] Figure label:

[0036] Main frame 100, Safety valve 110, Safety valve transition rod 120, Standing frame 200, Foot pedal 210, Auxiliary push-pull component 221, Auxiliary swing component 222, Pull rod push-pull component 223, First mounting hole 211, Second mounting hole 212, Push-pull component top block 224 Detailed Implementation

[0037] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings. Here, the illustrative embodiments and descriptions of this utility model are used to explain the present utility model, but are not intended to limit the present utility model.

[0038] It should also be noted that, in order to avoid obscuring the present invention with unnecessary details, only the structures and / or processing steps closely related to the solution according to the present invention are shown in the accompanying drawings, while other details that are not closely related to the present invention are omitted.

[0039] It should be emphasized that the term "including / comprises" as used herein refers to the presence of a feature, element, step, or component, but does not exclude the presence or addition of one or more other features, elements, steps, or components.

[0040] It should also be noted that the directional terms such as "left end" and "right end" used in this specification are relative to the positions shown in the attached drawings. Unless otherwise specified, the term "connection" in this document can refer not only to a direct connection but also to an indirect connection involving an intermediate component. A direct connection is a connection between two components without the aid of an intermediate component, while an indirect connection is a connection between two components using other components.

[0041] In the following description, embodiments of the present invention will be illustrated with reference to the accompanying drawings. In the drawings, the same reference numerals denote the same or similar parts.

[0042] Figure 1 This is a schematic diagram of the foot pedal control mechanism for the safety valve of a tracked transport vehicle according to an embodiment of the present invention. Figure 1 , Figure 2 This is a schematic diagram of the foot pedal control mechanism for the safety valve of a tracked transport vehicle according to an embodiment of the present invention. Figure 2 ,like Figure 1 and Figure 2 As shown, the foot pedal control mechanism includes at least a safety valve 110, a safety valve transition rod 120, a foot pedal 210, and a push-pull transmission mechanism.

[0043] A safety valve 110 is mounted on the main frame 100 of the tracked transporter; a safety valve transition rod 120 is mounted between the safety valve 110 and the stand 200, the top end of the safety valve transition rod 120 is hinged to the valve stem end of the safety valve 110, the middle part of the safety valve transition rod 120 is hinged to the main frame 100 of the tracked transporter, and the bottom end of the safety valve transition rod 120 is suspended and located on one side of the stand 200; a foot pedal 210 is mounted on the stand 200 of the tracked transporter and is hinged to the stand 200; a push-pull transmission mechanism is mounted between the foot pedal 210 and the bottom end of the safety valve transition rod 120, and the push-pull transmission mechanism pushes the bottom end of the safety valve transition rod 120 to swing under the rotation of the foot pedal 210.

[0044] The top of the safety valve transition rod 120 is hinged to the end of the valve stem of the safety valve 110, the middle of the safety valve transition rod 120 is hinged to the main frame 100 of the tracked transport vehicle, and the bottom end of the safety valve transition rod 120 is suspended. If the bottom end of the safety valve transition rod 120 is subjected to a sufficiently large force perpendicular to the end face of the safety valve transition rod 120, the valve stem of the safety valve 110 will be pulled out axially, and the safety valve 110 can then operate. The force used to pull the valve stem of the safety valve 110 comes from the driver operating the foot pedal 210. That is, in the above embodiment, when the driver stands... When the foot pedal 210 is stepped on on the stand frame 200, the foot pedal 210 will make partial circular motion around the hinge axis between it and the stand frame 200. The rotational motion of the foot pedal 210 pushes the bottom end of the safety valve transition rod 120 to swing through the push-pull transmission mechanism. Since the middle and top of the safety valve transition rod 120 are hinged to the main frame 100 and the valve stem end of the safety valve 110 respectively, the rotational motion of the foot pedal 210 drives the valve stem of the safety valve 110 to extend or retract based on the push-pull transmission mechanism and the safety valve transition rod 120, thereby realizing the opening and closing of the safety valve 110. For example, the safety valve 110 can be a hydraulic valve, and specifically a two-position four-way valve. In this case, the main frame 100 of the tracked transport vehicle is fixed relative to other components. The main frame 100 is provided with a U-shaped bending plate, and the two-position four-way safety valve 110 can be fixed to the U-shaped bending plate by bolts. The main frame 100 is provided with a connecting ear plate at the corresponding position, and the middle part of the safety valve transition rod 120 is connected to the connecting ear plate on the main frame 100 through a hinge shaft. Similarly, the valve stem end of the safety valve 110 is also hinged to the top end of the safety valve transition rod 120 through a hinge shaft. When the bottom end of the safety valve transition rod 120 is subjected to force, the safety valve transition rod 120 rotates around the hinge shaft in its middle part. At the same time, the top end of the safety valve transition rod 120 pulls the valve stem of the safety valve 110 to move.

[0045] like Figure 3 and Figure 4 As shown, the foot pedal 210 and the push-pull transmission mechanism can be located on both sides of the standing frame 200. Specifically, the push-pull transmission mechanism may include an auxiliary transmission component and a pull rod push-pull component 223. The first end of the auxiliary transmission component is hinged to the foot pedal 210, and the second end of the auxiliary transmission component is hinged to the first end of the pull rod push-pull component 223. The second end of the pull rod push-pull component 223 is used to push the bottom end of the safety valve transition rod 120, causing the safety valve transition rod 120 to swing. In this embodiment, the auxiliary transmission component is located between the foot pedal 210 and the pull rod push-pull component 223, that is, the auxiliary transmission component is used to convert the rotation of the foot pedal 210 into linear movement of the pull rod push-pull component 223. Figure 4In the standing frame assembly shown, the foot pedal 210 rotates about a rotation axis perpendicular to the plane of the paper, while the pull rod push-pull member 223 moves linearly in the vertical direction. For example, when the foot pedal 210 is pressed, the foot pedal 210 rotates counterclockwise. At this time, the auxiliary transmission member drives the pull rod push-pull member 223 to rise, thereby pushing the safety valve transition pull rod 120, causing the safety valve transition pull rod 120 to swing. The swinging safety valve transition pull rod 120 pulls the valve stem of the safety valve 110 to extend.

[0046] like Figure 5 As shown, the top of the stand 200 is provided with a connecting lug plate for connecting to the main frame 100; the stand 200 has a slot for the foot pedal 210 to rotate, and the back of the stand 200 has a connecting lug plate for hinged connection with the foot pedal 210. (Reference) Figure 7 The bottom end of the foot pedal 210 can also be provided with a connecting ear plate. In this case, the connecting ear plate on the foot pedal 210 is connected to the connecting ear plate on the back of the stand frame 200 through a fifth hinge shaft. Specifically, the connecting ear plate on the foot pedal 210 is provided with a first mounting hole 211 for mounting the first hinge shaft and a second mounting hole 212 for mounting the fifth hinge shaft. The first mounting hole 211 is located on the side of the second mounting hole 212 away from the foot pedal 210. The first hinge shaft is the hinge shaft between the foot pedal 210 and the end of the auxiliary transmission component. In addition, the foot pedal control mechanism may also include a torsion spring, which can be sleeved on the fifth hinge shaft, and the ends of the two torsion arms of the torsion spring are respectively connected to the bottom of the foot pedal 210 and the bottom of the stand frame 200.

[0047] In one specific embodiment, the auxiliary transmission component includes an auxiliary push-pull component 221 and an auxiliary swing component 222. The first end of the auxiliary push-pull component 221 is hinged to the foot pedal 210 via a first hinge axis. The second end of the auxiliary push-pull component 221 is hinged to the first end of the auxiliary swing component 222 via a second hinge axis. The second end of the auxiliary swing component 222 is hinged to the first end of the pull rod push-pull component 223 via a third hinge axis. The middle part of the auxiliary swing component 222 is hinged to the standing frame 200 via a fourth hinge axis. Figure 2The right end of the auxiliary push-pull member 221 is hinged to the connecting ear plate on the foot pedal 210 via a first hinge axis. When the foot pedal 210 is stepped on, the auxiliary push-pull member 221 moves laterally as the foot pedal 210 rotates. Additionally, the left end of the auxiliary push-pull member 221 is connected to the front end of the auxiliary swing member 222 via a second hinge axis, and the middle part of the auxiliary swing member is also hinged to the standing frame 200 via a fourth hinge axis. At this time, the auxiliary swing member 222 swings as the auxiliary push-pull member 221 moves laterally. Furthermore, since the rear end of the auxiliary swing member 222 is hinged to the right end of the pull rod push-pull member 223 via a third hinge axis, the pull rod push-pull member 223 also swings as the auxiliary swing member 222 swings. When the pull rod push-pull component 223 moves laterally, a push-pull component top block 224 can be further fixed to the left end. At this time, the left end of the pull rod push-pull component 223 abuts against the bottom end of the safety valve transition pull rod through the push-pull component top block 224. The push-pull component top block 224 moves synchronously with the pull rod push-pull component 223. As the pull rod push-pull component 223 moves laterally, the push-pull component top block 224 can push the bottom end of the safety valve transition pull rod 120, causing the safety valve transition pull rod 120 to rotate around its central hinge axis. In addition, in order to guide the movement of the pull rod push-pull component 223, a corresponding guide bushing is also provided on the standing frame 200, and the pull rod push-pull component 223 moves along the guide hole of the guide bushing.

[0048] In one specific embodiment, the moving directions of the auxiliary push-pull member 221 and the pull rod push-pull member 223 are parallel to each other, and the axis of the fourth hinge shaft is perpendicular to the moving direction of the pull rod push-pull member 223 and the axis of the first hinge shaft. The fourth hinge shaft is the hinge shaft between the middle of the auxiliary swing member 222 and the standing frame 200, and the first hinge shaft is the hinge shaft between the first end of the auxiliary push-pull member 221 and the foot pedal 210. Figure 4 In the process, the auxiliary push-pull component 221 and the pull rod push-pull component 223 move in the vertical direction, the axis of the fourth hinge shaft is in the horizontal direction, and the axis of the first hinge shaft is perpendicular to the paper surface.

[0049] Figure 9 This is a schematic diagram of the structure of the safety valve transition rod 120 according to an embodiment of the present invention. Figure 9 As shown, the safety valve transition rod 120 has hinge shaft mounting holes at its top and middle portions, and the safety valve transition rod 120 has a front-to-back symmetrical structure and a left-to-right symmetrical structure. Specifically, the axes of the hinge shafts between the safety valve transition rod 120, the valve stem end, and the main frame 100 are parallel to each other and are all parallel to the fifth hinge shaft. In a specific embodiment, the symmetry center plane of the safety valve transition rod 120 is perpendicular to the top end face of the standing frame 200.

[0050] In the above embodiment, the moving direction of the auxiliary push-pull member 211 is parallel to the moving direction of the pull rod push-pull member 223, and the moving direction of the valve stem of the safety valve 110 is parallel to the moving direction of the pull rod push-pull member 223. It is understood that this embodiment, which sets the moving directions of the auxiliary push-pull member, the pull rod push-pull member, and the valve stem to be parallel, is only one example. In other embodiments, the moving directions of the auxiliary push-pull member, the pull rod push-pull member, and the valve stem can be set to other values, as long as it ensures that the valve stem can extend as the foot pedal 210 rotates.

[0051] Figure 6 and Figure 9 These are schematic diagrams of the auxiliary push-pull component 221 and the pull rod push-pull component 223, respectively, according to an embodiment of this utility model. Figure 6 and Figure 9 As shown, both the auxiliary push-pull component 221 and the pull rod push-pull component 223 are U-shaped fork structures, and the fork arms of the U-shaped fork structure are respectively hinged to the two ends of the auxiliary swing component 222. Figure 7 This is a schematic diagram of the structure of the auxiliary swing member 222 according to an embodiment of the present invention, as shown below. Figure 7 As shown, the overall structure of the auxiliary swing member 222 can be a Z-shaped bent plate structure. In this case, the two ends of the auxiliary swing member 222 are respectively hinged to the auxiliary push-pull member 221 and the pull rod push-pull member 223.

[0052] In the above embodiment, the foot pedal is connected to the corresponding connecting ear plates on the stand frame via connecting ear plates on both sides of its bottom through a pin. A torsion spring is installed in the middle of this pin, and the function of the torsion spring is to keep the foot pedal in a raised state when no other external force is applied, so as to facilitate driver operation. One of the connecting ear plates at the bottom of the foot pedal is hinged to one end of the auxiliary push-pull component. The other end of the auxiliary push-pull component is connected to one end of the auxiliary swing component via a pin. The auxiliary swing component is connected to the corresponding vertical pin on the stand frame via a bushing in its middle. Under the action of external force, the auxiliary swing component will perform partial circular motion around the vertical pin. The other end of the auxiliary swing component is connected to the pull rod push-pull component via a pin. The other end of the pull rod push-pull component is connected to the top block of the push-pull component via a thread. The top block of the push-pull component passes through the inner hole of the guide bushing on the stand frame and can move axially along the guide bushing under the action of external force.

[0053] When the driver stands on the stand and depresses the foot pedal with their right foot, the connecting lug under the foot pedal pulls the auxiliary push-pull component backward. This auxiliary push-pull component pulls one end of the auxiliary swing component backward, while the other end of the auxiliary swing component pushes the pull rod push-pull component forward. The pull rod push-pull component pushes the top block of the push-pull component forward, which then transmits force to the lower end of the safety valve transition rod mounted on the main frame. The upper end of the safety valve transition rod then pulls the valve stem of the safety valve outward, thus enabling the safety valve to perform its control function. Since this series of control mechanisms is all mounted on the stand, forming a single unit, it does not affect the retraction and opening of the stand. The foot-operated control mechanism of this application is easy to manufacture, has a simple structure, is easy to install, has good practicality, and high robustness. It improves the overall safety performance of the machine, reduces manufacturing and maintenance costs, and improves the working and operational stability of the safety valve of the tracked transporter.

[0054] Accordingly, this utility model also provides a tracked transport vehicle, which includes a foot pedal control mechanism for the safety valve of the tracked transport vehicle as described in any of the above embodiments.

[0055] In this invention, features described and / or illustrated for one embodiment may be used in the same or similar manner in one or more other embodiments, and / or combined with or in place of features of other embodiments.

[0056] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. For those skilled in the art, various modifications and variations can be made to the embodiments of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A foot pedal control mechanism for a safety valve on a tracked transport vehicle, characterized in that, The foot pedal control mechanism includes: Safety valves are installed on the main frame of tracked transporters; A safety valve transition rod is used to be installed between the safety valve and the standing frame. The top end of the safety valve transition rod is used to be hinged to the valve stem end of the safety valve. The middle part of the safety valve transition rod is used to be hinged to the main frame of the tracked transport vehicle. The bottom end of the safety valve transition rod is suspended and located on one side of the standing frame. A foot pedal is mounted on the standing frame of the tracked transport vehicle, and the foot pedal is hinged to the standing frame. A push-pull transmission mechanism is disposed between the foot pedal and the bottom end of the safety valve transition rod. The push-pull transmission mechanism pushes the bottom end of the safety valve transition rod to swing under the rotation of the foot pedal.

2. The foot pedal control mechanism for the safety valve of the tracked transport vehicle according to claim 1, characterized in that, The push-pull transmission mechanism includes an auxiliary transmission component and a pull rod push-pull component. A first end of the auxiliary transmission component is hinged to the foot pedal, and a second end of the auxiliary transmission component is hinged to the first end of the pull rod push-pull component. The second end of the pull rod push-pull component is used to push the bottom end of the safety valve transition rod, causing the safety valve transition rod to swing; and / or, The safety valve is a hydraulic valve.

3. The foot pedal control mechanism for the safety valve of the tracked transport vehicle according to claim 2, characterized in that, The auxiliary transmission component includes an auxiliary push-pull component and an auxiliary swing component. The first end of the auxiliary push-pull component is hinged to the foot pedal via a first hinge axis. The second end of the auxiliary push-pull component is hinged to the first end of the auxiliary swing component via a second hinge axis. The second end of the auxiliary swing component is hinged to the first end of the pull rod push-pull component via a third hinge axis. The middle part of the auxiliary swing component is hinged to the standing frame via a fourth hinge axis.

4. The foot pedal control mechanism for the safety valve of the tracked transport vehicle according to claim 3, characterized in that, The moving directions of the auxiliary push-pull component and the pull rod push-pull component are parallel to each other, and the axis of the fourth hinge shaft is perpendicular to the moving direction of the pull rod push-pull component and the axis of the first hinge shaft hinge.

5. The foot pedal control mechanism for the safety valve of the tracked transport vehicle according to claim 3, characterized in that, The bottom end of the foot pedal is provided with a connecting ear plate, which is connected to the standing frame via a fifth hinge shaft. The connecting ear plate is provided with a first mounting hole for mounting the first hinge shaft and a second mounting hole for mounting the fifth hinge shaft. The first mounting hole is located on the side of the second mounting hole away from the foot pedal.

6. The foot pedal control mechanism for the safety valve of the tracked transport vehicle according to claim 4, characterized in that, The symmetrical center plane of the safety valve transition rod is perpendicular to the top end face of the standing frame; and / or, The standing frame is provided with a guide bushing, and the pull rod push-pull component moves along the guide hole of the guide bushing.

7. The foot pedal control mechanism for the safety valve of the tracked transport vehicle according to claim 6, characterized in that, The direction of movement of the valve stem of the safety valve is parallel to the direction of movement of the push-pull member of the pull rod.

8. The foot pedal control mechanism for the safety valve of the tracked transport vehicle according to claim 5, characterized in that, The foot pedal control mechanism includes a torsion spring, the ends of the two torsion arms of which are respectively connected to the bottom of the foot pedal and the bottom of the stand.

9. The foot pedal control mechanism for the safety valve of the tracked transport vehicle according to claim 4, characterized in that, Both the auxiliary push-pull component and the pull rod push-pull component are U-shaped fork structures, and the fork arms of the two U-shaped fork structures are respectively hinged to the two ends of the auxiliary swing component.

10. A tracked transport vehicle, characterized in that, The tracked transport vehicle includes a foot pedal control mechanism for the safety valve of the tracked transport vehicle as described in any one of claims 1 to 9.

Images