Double-control window glass lifting device for explosion-proof command vehicle

Abstract

The invention belongs to the technical field of underground coal mine explosion-proof vehicles, solves the problems that components of an explosion-proof vehicle window lifting system in the prior art are prone to overload damage, and pipeline arrangement is difficult, and provides a dual-control vehicle window glass lifting device of an explosion-proof command vehicle. The air storage part is used for providing an air source, the lifting air cylinder assembly is arranged at the bottom of a vehicle door, the pneumatic control system comprises an operation valve set and a shuttle valve set, the manual control system comprises a driving assembly and a transmission assembly, and an air cylinder rod of the lifting air cylinder assembly is connected with a vehicle window frame and used for driving a vehicle window glass assembly to ascend and descend. Internal loops of the operating valve group and the shuttle valve group are combined to form a window glass ascending and descending switching control loop, the transmission assembly is arranged along the edge of the window glass, the driving assembly drives the transmission assembly to move, and the transmission assembly drives the window glass to ascend or descend. According to the device, through two independent control modes of pneumatic and manual operation, the flexibility and reliability of lifting of the window glass are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of explosion-proof vehicles underground in coal mines, and particularly relates to a dual-control window glass lifting device for an explosion-proof command vehicle. Background Art

[0002] At present, the lifting of the window glasses in the driver's cab of explosion-proof vehicles underground in coal mines is manually mechanically controlled, and it is increasingly difficult to meet the long-term plan of realizing automatic control in modern mines.

[0003] Some existing explosion-proof vehicles have developed an electric control window lifting system. However, due to the requirements and limitations of the special environment underground in coal mines, the electric control components must be explosion-proof treated. After the explosion-proof treatment, problems such as too large external dimensions and difficult installation occur. At the same time, during the window lifting process, failures frequently occur where the electric components are overloaded and damaged due to excessive movement resistance, resulting in reduced service life and reliability, seriously affecting the use effect. There are also hydraulic control lifting systems, but due to the large size of the hydraulic components, difficult pipeline layout, and serious oil pollution, it affects the vehicle's appearance and later maintenance. Summary of the Invention

[0004] In order to solve the above technical problems or at least partially solve the above technical problems, the present disclosure provides a dual-control window glass lifting device for an explosion-proof command vehicle.

[0005] The present disclosure provides a dual-control window glass lifting device for an explosion-proof command vehicle, which is used to drive the window glass to lift. The window glass is arranged in a window frame and includes:

[0006] An air storage member, which is used to provide a gas source;

[0007] A lifting cylinder assembly, which is arranged at the bottom of the vehicle door. The cylinder rod of the lifting cylinder assembly is connected to the window frame and is used to drive the window glass to lift;

[0008] A pneumatic control system, which includes an operation valve group and a shuttle valve group. The internal circuits of the operation valve group and the shuttle valve group are combined to form a switching control circuit for the window glass to rise and fall;

[0009] A manual control system, which includes a driving component and a transmission component. The transmission component is arranged along the edge of the window glass. The driving component drives the transmission component to move, and the transmission component drives the window glass to rise or fall.

[0010] Optionally, the control circuit for switching the raising and lowering of the window glass includes a circuit for simultaneously raising and lowering the cab window glass. The window glass includes a first window glass, a second window glass, a third window glass, and a fourth window glass. The lifting cylinder assembly includes a first lifting cylinder, a second lifting cylinder, a third lifting cylinder, and a fourth lifting cylinder. The operation valve group includes a first operation valve, a second operation valve, a third operation valve, a fourth operation valve, and a fifth operation valve. The shuttle valve group includes a first shuttle valve, a second shuttle valve, a third shuttle valve, and a fourth shuttle valve;

[0011] Switch the connection between port a1 of the first operation valve and port d1 of the first operation valve. The compressed air from the air storage element enters port e2 of the second shuttle valve through the first operation valve, and then enters port B1 of the first lifting cylinder through port g2 of the second shuttle valve. The compressed air from the air storage element simultaneously enters port e4 of the fourth shuttle valve through the first operation valve, and then enters port B2 of the second lifting cylinder through port g4 of the fourth shuttle valve. At this time, the first lifting cylinder and the second lifting cylinder retract simultaneously, and drive the first window glass and the second window glass to descend simultaneously;

[0012] Switch the connection between port a1 of the first operation valve and port c1 of the first operation valve. The compressed air from the air storage element enters port e1 of the first shuttle valve through the first operation valve, and then enters port A1 of the first lifting cylinder through port g1 of the first shuttle valve. The compressed air from the air storage element simultaneously enters port e3 of the third shuttle valve through the first operation valve, and then enters port A2 of the second lifting cylinder through port g3 of the third shuttle valve. At this time, the first lifting cylinder and the second lifting cylinder extend simultaneously, and drive the first window glass and the second window glass to rise simultaneously.

[0013] Optionally, the control circuit for switching the raising and lowering of the window glass further includes a circuit for separately raising and lowering the window glass;

[0014] Switch the connection between port a2 of the second operation valve and port d2 of the second operation valve. The compressed air from the air storage element enters port f2 of the second shuttle valve through the second operation valve, and then enters port B1 of the first lifting cylinder through port g2 of the second shuttle valve. At this time, the first lifting cylinder retracts, and the first lifting cylinder drives the first window glass to descend;

[0015] Switch the connection between port a2 of the second operation valve and port c2 of the second operation valve. The compressed air from the air storage element enters port f1 of the first shuttle valve through the second operation valve, and then enters port A1 of the first lifting cylinder through port g1 of the first shuttle valve. At this time, the first lifting cylinder extends, and the first lifting cylinder drives the first window glass to rise;

[0016] Switch the connection between port a3 and port d3 of the third operation valve, and the compressed air of the air storage component enters port f4 of the fourth shuttle valve through the third operation valve, and then enters port B2 of the second lifting cylinder through port g4 of the fourth shuttle valve. At this time, the second lifting cylinder retracts, and the second lifting cylinder drives the second window glass to descend;

[0017] Switch the connection between port a3 and port c3 of the third operation valve, and the compressed air of the air storage component enters port f3 of the third shuttle valve through the third operation valve, and then enters port A2 of the second lifting cylinder through port g3 of the third shuttle valve. At this time, the second lifting cylinder extends, and the second lifting cylinder drives the second window glass to rise;

[0018] Switch the connection between port a4 and port d4 of the fourth operation valve, and the compressed air of the air storage component enters port B3 of the third lifting cylinder through the fourth operation valve. At this time, the third lifting cylinder retracts, and the third lifting cylinder drives the third window glass to descend;

[0019] Switch the connection between port a4 of the fourth operation valve and port c4 of the second operation valve, and the compressed air of the air storage component enters port A3 of the third lifting cylinder through the fourth operation valve. At this time, the third lifting cylinder extends, and the third lifting cylinder drives the third window glass to rise;

[0020] Switch the connection between port a5 and port d5 of the fifth operation valve, and the compressed air of the air storage component enters port B4 of the fourth lifting cylinder through the fifth operation valve. At this time, the fourth lifting cylinder retracts, and the fourth lifting cylinder drives the fourth window glass to descend;

[0021] Switch the connection between port a5 and port c5 of the fifth operation valve, and the compressed air of the air storage component enters port A4 of the fourth lifting cylinder through the fifth operation valve. At this time, the fourth lifting cylinder extends, and the fourth lifting cylinder drives the fourth window glass to rise.

[0022] Optionally, the pneumatic control system further includes a throttle speed control valve assembly. The throttle speed control valve assembly includes five throttle speed control valves. The five throttle speed control valves are respectively connected to the first operation valve, the second operation valve, the third operation valve, the fourth operation valve, and the fifth operation valve. The throttle speed control valve is used to adjust the gas flow rate in the pneumatic control system.

[0023] Optionally, an overload protection mechanism is provided in the throttle speed control valve group. The overload protection mechanism is used to provide overload protection for the pneumatic control system.

[0024] Optionally, the pneumatic control system further includes a muffler assembly, which includes five mufflers, and the five mufflers are respectively connected to the five throttle speed control valves.

[0025] Optionally, the driving assembly includes a ratchet and a crank, and the transmission assembly includes a first steel wire rope, a second steel wire rope, a first mounting ring, a second mounting ring, a first roller and a second roller;

[0026] One end of the first steel wire rope is arranged in the first mounting ring, and the other end of the first steel wire rope bypasses the first roller and the second roller and is connected to the ratchet;

[0027] One end of the second steel wire rope is arranged in the second mounting ring, and the other end of the second steel wire rope bypasses the second roller and is connected to the ratchet;

[0028] The ratchet is arranged below the window frame, the crank is inserted into the ratchet, when the crank is shaken clockwise, the first steel wire rope and the second steel wire rope drive the window glass to descend, and when the crank is shaken counterclockwise, the first steel wire rope and the second steel wire rope drive the window glass to ascend.

[0029] Optionally, a self-locking mechanism is further included, and the self-locking mechanism is arranged in the window frame and is connected to the manual control system.

[0030] Optionally, both the pneumatic control system and the manual control system are made of explosion-proof and corrosion-resistant materials.

[0031] The technical solution provided by the embodiment of the present disclosure has the following beneficial effects compared with the prior art:

[0032] An explosion-proof command vehicle double-control window glass lifting device provided by an embodiment of the present disclosure realizes that the left and right window glasses of the cab can be raised or lowered simultaneously, and can also independently control the lifting of the left and right window glasses of the double-row vehicle by setting a pneumatic control system and a manual control system, improving work efficiency. Moreover, when the pneumatic control system fails, the window glass can be manually controlled, improving the applicability and practicability of this device. Each component of the pneumatic control system in this device is small in size, light in weight, convenient for pipeline layout, reducing costs, and meeting the requirements of environmental protection and intelligence at the same time. Description of the Drawings

[0033] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0034] Figure 1 It is a schematic diagram of the pneumatic control system of a double-control window glass lifting device for an explosion-proof command vehicle according to an embodiment of the present invention;

[0035] Figure 2 It is a structural schematic diagram of the manual control system of a double-control window glass lifting device for an explosion-proof command vehicle according to an embodiment of the present invention;

[0036] Figure 3 It is a structural schematic diagram of the first mounting ring according to an embodiment of the present invention;

[0037] Figure 4 It is a structural schematic diagram of the second mounting ring according to an embodiment of the present invention;

[0038] Figure 5 It is a structural schematic diagram of the first roller according to an embodiment of the present invention;

[0039] Figure 6 It is a structural schematic diagram of the second roller according to an embodiment of the present invention;

[0040] Figure 7 It is a structural schematic diagram of the ratchet according to an embodiment of the present invention.

[0041] Wherein, 1. air storage member; 2. first operation valve; 3. first throttle speed control valve; 4. first muffler; 5. first shuttle valve; 6. second shuttle valve; 7. first lifting cylinder; 8. second operation valve; 9. second throttle speed control valve; 10. second muffler; 11. third shuttle valve; 12. second lifting cylinder; 13. fourth shuttle valve; 14. third operation valve; 15. third throttle speed control valve; 16. third muffler; 17. fourth operation valve; 18. third lifting cylinder; 19. fourth throttle speed control valve; 20. fourth muffler; 21. fifth operation valve; 22. fourth lifting cylinder; 23. fifth throttle speed control valve; 24. fifth muffler; 25. mounting seat; 26. cylinder rod; 27. glass pin; 28. window frame; 29. first mounting ring; 30. window glass; 31. first steel wire rope; 32. first roller; 33. second roller; 34. second steel wire rope; 35. second mounting ring; 36. ratchet; 37. crank; 38. folding rod; 39. first connecting pin; 40. first limit pin; 41. first retaining ring; 42. second connecting pin; 43. second limit pin; 44. second retaining ring; 45. first bolt; 46. second bolt; 47. first bearing; 48. third bolt; 49. first mounting pressing plate; 50. fourth bolt; 51. second mounting pressing plate. Detailed implementation manners

[0042] In combination with the accompanying drawings in the embodiments of the present invention, the technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other implementation manners obtained by those of ordinary skill in the art without creative efforts belong to the scope protected by the present invention.

[0043] It should be noted that the structures, ratios, sizes, etc. shown in the drawings of this specification are only used to cooperate with the content disclosed in the specification for those who are familiar with this technology to understand and read, and are not used to limit the limited conditions under which the present invention can be implemented. Therefore, they do not have technical substance. Any modification of the structure, change of the proportional relationship or adjustment of the size, without affecting the effects that the present invention can produce and the purposes that can be achieved, should fall within the scope covered by the technical content disclosed in the present invention. It should be noted that in this specification, relational terms such as first and second are only used to distinguish one entity from several other entities, and do not necessarily require or imply any actual relationship or order between these entities.

[0044] Refer to Figure 1 and Figure 2 As shown, this embodiment provides a dual-control window glass lifting device for an explosion-proof command vehicle, which is used to drive the window glass 30 to lift. The window glass 30 is arranged in the window frame 28. This device includes an air storage member 1, a lifting cylinder assembly, a pneumatic control system, and a manual control system.

[0045] Among them, the air storage member 1 is used to provide the air source required for this lifting device. The lifting cylinder assembly is arranged at the bottom of the vehicle door. The cylinder rod 26 of the lifting cylinder assembly is connected to the window frame 28 and is used to drive the window glass 30 to lift. The pneumatic control system includes an operation valve group and a shuttle valve group. The internal circuits of the operation valve group and the shuttle valve group are combined to form a switching control circuit for the window glass 30 to rise and fall. The manual control system includes a driving component and a transmission component. The transmission component is arranged along the edge of the window glass 30. The driving component drives the transmission component to move, and the transmission component drives the window glass 30 to rise or fall.

[0046] Refer to Figure 1As shown, the control circuit for switching the raising and lowering of the window glass includes a circuit for simultaneously raising and lowering the cab window glass. The window glass 30 includes a first window glass, a second window glass, a third window glass, and a fourth window glass. The first window glass is the left cab window glass, the second window glass is the right cab window glass, the third window glass is the left rear window glass, and the fourth window glass is the right rear window glass. The lifting cylinder assembly includes a first lifting cylinder 7, a second lifting cylinder 12, a third lifting cylinder 18, and a fourth lifting cylinder 22. The operation valve group includes a first operation valve 2, a second operation valve 8, a third operation valve 14, a fourth operation valve 17, and a fifth operation valve 21. The shuttle valve group includes a first shuttle valve 5, a second shuttle valve 6, a third shuttle valve 11, and a fourth shuttle valve 13.

[0047] Specifically, when the driver needs to simultaneously open the left and right cab window glasses, switch the connection between port a1 of the first operation valve 2 and port d1 of the first operation valve 2. The compressed air from the air storage member 1 enters port e2 of the second shuttle valve 6 through the first operation valve 2, and then enters port B1 of the first lifting cylinder 7 through port g2 of the second shuttle valve 6. The compressed air from the air storage member 1 simultaneously enters port e4 of the fourth shuttle valve 13 through the first operation valve 2, and then enters port B2 of the second lifting cylinder 12 through port g4 of the fourth shuttle valve 13. At this time, the first lifting cylinder 7 and the second lifting cylinder 12 simultaneously retract, and respectively drive the first window glass and the second window glass to descend simultaneously.

[0048] When the driver needs to simultaneously open the left and right cab window glasses, switch the connection between port a1 of the first operation valve 2 and port c1 of the first operation valve 2. The compressed air from the air storage member 1 enters port e1 of the first shuttle valve 5 through the first operation valve 2, and then enters port A1 of the first lifting cylinder 7 through port g1 of the second shuttle valve 6. The compressed air from the air storage member 1 simultaneously enters port e3 of the third shuttle valve 11 through the first operation valve 2, and then enters port A2 of the second lifting cylinder 12 through port g3 of the third shuttle valve 11. At this time, the first lifting cylinder 7 and the second lifting cylinder 12 simultaneously extend, and respectively drive the first window glass and the second window glass to rise simultaneously.

[0049] The control circuit for switching the raising and lowering of the window glass also includes a circuit for individually raising and lowering the window glass. When the driver needs to individually open the left cab window glass, switch the connection between port a2 of the second operation valve 8 and port d2 of the second operation valve 8. The compressed air from the air storage member 1 enters port f2 of the second shuttle valve 6 through the second operation valve 8, and then enters port B1 of the first lifting cylinder 7 through port g2 of the second shuttle valve 6. At this time, the first lifting cylinder 7 retracts, and the first lifting cylinder 7 drives the first window glass to descend.

[0050] When the driver needs to separately close the left cab window glass, switch to connect port a2 of the second operation valve 8 and port c2 of the second operation valve 8. The compressed air in the air storage component 1 enters port f1 of the first shuttle valve 5 through the second operation valve 8, and then enters port A1 of the first lifting cylinder 7 through port g1 of the first shuttle valve 5. At this time, the first lifting cylinder 7 extends, and the first lifting cylinder 7 drives the first window glass to rise.

[0051] When the driver needs to separately open the right cab window glass, switch to connect port a3 of the third operation valve 14 and port d3 of the third operation valve 14. The compressed air in the air storage component 1 enters port f4 of the fourth shuttle valve 13 through the third operation valve 14, and then enters port B2 of the second lifting cylinder 12 through port g4 of the fourth shuttle valve 13. At this time, the second lifting cylinder 12 retracts, and the second lifting cylinder 12 drives the second window glass to descend.

[0052] When the driver needs to separately close the right cab window glass, switch to connect port a3 of the third operation valve 14 and port c3 of the third operation valve 14. The compressed air in the air storage component 1 enters port f3 of the third shuttle valve 11 through the third operation valve 14, and then enters port A2 of the second lifting cylinder 12 through port g3 of the third shuttle valve 11. At this time, the second lifting cylinder 12 extends, and the second lifting cylinder 12 drives the second window glass to rise.

[0053] When the driver needs to separately open the left rear window glass, switch to connect port a4 of the fourth operation valve 17 and port d4 of the fourth operation valve 17. The compressed air in the air storage component 1 enters port B3 of the third lifting cylinder 18 through the fourth operation valve 17. At this time, the third lifting cylinder 18 retracts, and the third lifting cylinder 18 drives the third window glass to descend.

[0054] When the driver needs to separately close the left rear window glass, switch to connect port a4 of the fourth operation valve 17 and port c4 of the second operation valve 8. The compressed air in the air storage component 1 enters port A3 of the third lifting cylinder 18 through the fourth operation valve 17. At this time, the third lifting cylinder 18 extends, and the third lifting cylinder 18 drives the third window glass to rise.

[0055] When the driver needs to separately open the right rear window glass, switch to connect port a5 of the fifth operation valve 21 and port d5 of the fifth operation valve 21. The compressed air in the air storage component 1 enters port B4 of the fourth lifting cylinder 22 through the fifth operation valve 21. At this time, the fourth lifting cylinder 22 retracts, and the fourth lifting cylinder 22 drives the fourth window glass to descend.

[0056] When the driver needs to separately close the left rear window glass, switch to connect port a5 of the fifth operation valve 21 and port c5 of the fifth operation valve 21. The compressed air in the air storage component 1 enters port A4 of the fourth lifting cylinder 22 through the fifth operation valve 21. At this time, the fourth lifting cylinder 22 extends, and the fourth lifting cylinder 22 drives the fourth window glass to rise.

[0057] Of course, the pneumatic control system further includes a throttle speed control valve assembly and a muffler assembly. The throttle speed control valve assembly includes a first throttle speed control valve 3, a second throttle speed control valve 9, a third throttle speed control valve 15, a fourth throttle speed control valve 19, and a fifth throttle speed control valve 23. The five throttle speed control valves are respectively connected to the exhaust ports of the first operation valve 2, the second operation valve 8, the third operation valve 14, the fourth operation valve 17, and the fifth operation valve 21. By adjusting the opening degrees of the five throttle speed control valves, the gas flow rate in the four lifting cylinders can be correspondingly controlled, so as to accurately control the lifting speed of the corresponding window glass 30, improving the comfort and flexibility of the operation of this device. The muffler assembly includes a first muffler 4, a second muffler 10, a third muffler 16, a fourth muffler 20, and a fifth muffler 24. The five mufflers are respectively connected to the five throttle speed control valves. When the window glass 30 is lifted or lowered, the lifting cylinder assembly needs to exhaust gas to change the position of the window glass 30. At this time, certain noise will be generated at the exhaust port. The muffler can effectively reduce the noise through the sound absorption structure inside it, making the process of lifting and lowering the window glass 30 more stable and quiet.

[0058] An overload protection mechanism is provided in the throttle speed control valve group. When abnormal resistance is encountered during the lifting and lowering process of the window glass 30, the overload protection mechanism can automatically cut off the air path in the pneumatic control system to protect the pneumatic control system from damage.

[0059] Refer to Figure 2 As shown, the window glass 30 is fixed in the window frame 28 through a glass pin 27. The bottom end of the corresponding lifting cylinder is fixed in the window frame 28 through a mounting seat 25. Two planes are milled at the end of the cylinder rod 26, and mounting holes are machined on the planes. A first nut is welded in the window frame 28. One end of a first bolt 45 is arranged in the mounting hole, and the other end is connected to the first nut, thereby realizing the connection between the cylinder rod 26 and the window frame 28. The driving assembly includes a ratchet 36 and a crank 37. The transmission assembly includes a first steel wire rope 31, a second steel wire rope 34, a first mounting ring 29, a second mounting ring 35, a first roller 32, and a second roller 33. A first connection hole is provided on the first mounting ring 29, and a second connection hole is provided on the second mounting ring 35. One end of the first steel wire rope 31 passes through the first connection hole and is knotted. A first retaining ring 41 is arranged at the bottom of the first connection hole to limit the first steel wire rope 31. Refer to Figure 3 As shown, the first mounting ring 29 is connected to the window frame 28 through a first connection pin 39. A first limit pin 40 is inserted into the opening of the first connection pin 39 to limit the first connection pin 39. A chute is provided at the top of the first roller 32. Refer to Figure 5 and Figure 6As shown, the other end of the first steel wire rope 31 passes through the first roller 32 and the second roller 33 and is connected to the ratchet 36. The first roller 32 is provided with a first bearing 47 inside. The first bearing 47 is used to reduce the friction generated when the first roller 32 rotates, thereby improving the smoothness and efficiency of the rotation of the first roller 32. The first roller 32 is fixed to the window frame 28 by the second bolt 46 and the first spring washer. The second roller 33 includes two first rollers 32 and is fixed to the window frame 28 by the third bolt 48 and the second spring washer. Figure 7 As shown, the ratchet 36 is arranged below the window frame 28 through the fourth bolt 50, the first mounting plate 49 and the second mounting plate 51, referring to Figure 4 As shown, one end of the second steel wire rope 34 passes through the second connecting hole of the second mounting ring 35 and is knotted, the second retaining ring 44 is arranged at the bottom of the second connecting hole to limit the second steel wire rope 34, the second mounting ring 35 is connected to the vehicle window frame 28 through the second connecting pin 42, the second limiting pin 43 is inserted into the opening of the second connecting pin 42, and is used to limit the second connecting pin 42, the other end of the second steel wire rope 34 bypasses the slide groove of the second roller 33 and is connected to the ratchet 36, when the air circuit control system fails, the first bolt 45 is taken out, so that the cylinder rod 26 is separated from the vehicle The window frame 28 adopts a manual control system to raise and lower the window glass 30, and the crank 37 is inserted into the ratchet 36. When the window glass 30 needs to be lowered, the crank 37 is shaken clockwise, and the first steel wire rope 31 and the second steel wire rope 34 drive the window glass 30 to be lowered. When the window glass 30 needs to be raised, the crank 37 is shaken counterclockwise, and the first steel wire rope 31 and the second steel wire rope 34 drive the window glass 30 to be raised. The end of the crank 37 is connected to a folding rod 38, which is used to provide a supporting force to keep the crank 37 stable during rotation to avoid shaking or falling off.

[0060] Among them, the first retaining ring 41 and the second retaining ring 44 respectively limit the first steel wire rope 31 and the second steel wire rope 34 to prevent the first steel wire rope 31 and the second steel wire rope 34 from falling off, ensuring that the first steel wire rope 31 and the second steel wire rope 34 will not fall off or loosen due to vibration or other external forces during vehicle operation, thereby ensuring the stability and reliability of the lifting device. The first spring washer and the second spring washer are used to provide additional pre-tightening force to ensure that the corresponding bolts will not loosen due to vibration or long-term use.

[0061] To ensure that the vehicle window glass 30 is stably raised and lowered, this lifting device also includes a self-locking mechanism, which is arranged in the vehicle window frame 28 and connected to the manual control system. When the vehicle window glass 30 is raised and lowered to the desired position, the self-locking mechanism can automatically lock the manual control system to prevent the vehicle window glass 30 from accidentally moving due to vehicle vibration or external force. When the vehicle window glass 30 needs to be raised and lowered again, the driver must first release the locking state of the self-locking mechanism.

[0062] Both the pneumatic control system and the manual control system adopt explosion-proof and corrosion-resistant materials to adapt to the special environments such as coal mines where there are flammable, explosive and highly corrosive substances.

[0063] This device can not only achieve remote power control of the window glass 30 to meet the requirements of environmental protection and intelligence, but also achieve manual lifting of the window glass 30. When an emergency occurs or the air source is lost, the window glass 30 can be manually cranked. This device has small overall size, light weight, convenient pipeline layout and low cost.

[0064] Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations fall within the scope defined by the appended claims.

Claims

1. An explosion-proof command vehicle dual-control window glass lifting device, characterized in that, For driving the lifting of a vehicle window glass (30), the vehicle window glass (30) is disposed within a window frame (28), and includes: An air storage member (1) for providing an air source; A lifting cylinder assembly disposed at the bottom of a vehicle door, with a cylinder rod (26) of the lifting cylinder assembly connected to the window frame (28) for driving the lifting of the vehicle window glass (30); A pneumatic control system including an operation valve group and a shuttle valve group, and an internal circuit combination of the operation valve group and the shuttle valve group forms a switching control circuit for the lifting and lowering of the vehicle window glass; A manual control system including a driving component and a transmission component, the transmission component is disposed along the edge of the vehicle window glass (30), the driving component drives the transmission component to move, and the transmission component drives the vehicle window glass (30) to rise or fall.

2. The double-control window glass lifting device for an explosion-proof command vehicle according to claim 1, wherein, The switching control circuit for the lifting and lowering of the vehicle window glass includes a circuit for the simultaneous lifting and lowering of the driver's cab vehicle window glass. The vehicle window glass (30) includes a first vehicle window glass, a second vehicle window glass, a third vehicle window glass, and a fourth vehicle window glass. The lifting cylinder assembly includes a first lifting cylinder (7), a second lifting cylinder (12), a third lifting cylinder (18), and a fourth lifting cylinder (22). The operation valve group includes a first operation valve (2), a second operation valve (8), a third operation valve (14), a fourth operation valve (17), and a fifth operation valve (21). The shuttle valve group includes a first shuttle valve (5), a second shuttle valve (6), a third shuttle valve (11), and a fourth shuttle valve (13); Switch the communication between port a1 of the first operation valve (2) and port d1 of the first operation valve (2). Compressed air from the air storage member (1) enters port e2 of the second shuttle valve (6) through the first operation valve (2), and then enters port B1 of the first lifting cylinder (7) through port g2 of the second shuttle valve (6). Compressed air from the air storage member (1) simultaneously enters port e4 of the fourth shuttle valve (13) through the first operation valve (2), and then enters port B2 of the second lifting cylinder (12) through port g4 of the fourth shuttle valve (13). At this time, the first lifting cylinder (7) and the second lifting cylinder (12) simultaneously retract, and respectively drive the first vehicle window glass and the second vehicle window glass to descend simultaneously; Switch the communication between port a1 of the first operation valve (2) and port c1 of the first operation valve (2). Compressed air from the air storage member (1) enters port e1 of the first shuttle valve (5) through the first operation valve (2), and then enters port A1 of the first lifting cylinder (7) through port g1 of the first shuttle valve (5). Compressed air from the air storage member (1) simultaneously enters port e3 of the third shuttle valve (11) through the first operation valve (2), and then enters port A2 of the second lifting cylinder (12) through port g3 of the third shuttle valve (11). At this time, the first lifting cylinder (7) and the second lifting cylinder (12) simultaneously extend, and respectively drive the first vehicle window glass and the second vehicle window glass to rise simultaneously.

3. The double-control window glass lifting device for an explosion-proof command vehicle according to claim 2, characterized in that, The window glass raising and lowering switching control circuit further includes a window glass individual lifting circuit; Switch the communication between port a2 of the second operation valve (8) and port d2 of the second operation valve (8). The compressed air of the air storage member (1) enters port f2 of the second shuttle valve (6) through the second operation valve (8), and then enters port B1 of the first lifting cylinder (7) through port g2 of the second shuttle valve (6). At this time, the first lifting cylinder (7) retracts, and the first lifting cylinder (7) drives the first window glass to descend; Switch the communication between port a2 of the second operation valve (8) and port c2 of the second operation valve (8). The compressed air of the air storage member (1) enters port f1 of the first shuttle valve (5) through the second operation valve (8), and then enters port A1 of the first lifting cylinder (7) through port g1 of the first shuttle valve (5). At this time, the first lifting cylinder (7) extends, and the first lifting cylinder (7) drives the first window glass to rise; Switch the communication between port a3 of the third operation valve (14) and port d3 of the third operation valve (14). The compressed air of the air storage member (1) enters port f4 of the fourth shuttle valve (13) through the third operation valve (14), and then enters port B2 of the second lifting cylinder (12) through port g4 of the fourth shuttle valve (13). At this time, the second lifting cylinder (12) retracts, and the second lifting cylinder (12) drives the second window glass to descend; Switch the communication between port a3 of the third operation valve (14) and port c3 of the third operation valve (14). The compressed air of the air storage member (1) enters port f3 of the third shuttle valve (11) through the third operation valve (14), and then enters port A2 of the second lifting cylinder (12) through port g3 of the third shuttle valve (11). At this time, the second lifting cylinder (12) extends, and the second lifting cylinder (12) drives the second window glass to rise; Switch the communication between port a4 of the fourth operation valve (17) and port d4 of the fourth operation valve (17). The compressed air of the air storage member (1) enters port B3 of the third lifting cylinder (18) through the fourth operation valve (17). At this time, the third lifting cylinder (18) retracts, and the third lifting cylinder (18) drives the third window glass to descend; Switch the communication between port a4 of the fourth operation valve (17) and port c4 of the second operation valve (8). The compressed air of the air storage member (1) enters port A3 of the third lifting cylinder (18) through the fourth operation valve (17). At this time, the third lifting cylinder (18) extends, and the third lifting cylinder (18) drives the third window glass to rise; Switch the communication between port a5 of the fifth operation valve (21) and port d5 of the fifth operation valve (21). The compressed air of the air storage member (1) enters port B4 of the fourth lifting cylinder (22) through the fifth operation valve (21). At this time, the fourth lifting cylinder (22) retracts, and the fourth lifting cylinder (22) drives the fourth window glass to descend; Switch the communication between port a5 of the fifth operation valve (21) and port c5 of the fifth operation valve (21). The compressed air of the air storage component (1) enters port A4 of the fourth lifting cylinder (22) through the fifth operation valve (21). At this time, the fourth lifting cylinder (22) extends, and the fourth lifting cylinder (22) drives the fourth window glass to rise.

4. The dual-control window glass lifting device for an explosion-proof command vehicle according to claim 2, wherein, The pneumatic control system further includes a throttle speed control valve assembly. The throttle speed control valve assembly includes five throttle speed control valves, and the five throttle speed control valves are respectively connected to the first operation valve (2), the second operation valve (8), the third operation valve (14), the fourth operation valve (17), and the fifth operation valve (21). The throttle speed control valve is used to adjust the gas flow in the pneumatic control system.

5. The double-control window glass lifting device for an explosion-proof command vehicle according to claim 4, wherein An overload protection mechanism is provided in the throttle speed control valve group, and the overload protection mechanism is used to provide overload protection for the pneumatic control system.

6. The double-control window glass lifting device for an explosion-proof command vehicle according to claim 4, characterized in that, The pneumatic control system further includes a muffler assembly. The muffler assembly includes five mufflers, and the five mufflers are respectively connected to the five throttle speed control valves.

7. The double-control window glass lifting device for an explosion-proof command vehicle according to claim 1, wherein, The drive assembly includes a ratchet wheel (36) and a crank (37), and the transmission assembly includes a first steel wire rope (31), a second steel wire rope (34), a first mounting ring (29), a second mounting ring (35), a first roller (32), and a second roller (33); One end of the first steel wire rope (31) is arranged in the first mounting ring (29), and the other end of the first steel wire rope (31) bypasses the first roller (32) and the second roller (33) and is connected to the ratchet wheel (36); One end of the second steel wire rope (34) is arranged in the second mounting ring (35), and the other end of the second steel wire rope (34) bypasses the second roller (33) and is connected to the ratchet wheel (36); The ratchet wheel (36) is arranged below the window frame (28), and the crank (37) is inserted into the ratchet wheel (36). When the crank (37) is shaken clockwise, the first steel wire rope (31) and the second steel wire rope (34) drive the window glass (30) to descend. When the crank (37) is shaken counterclockwise, the first steel wire rope (31) and the second steel wire rope (34) drive the window glass (30) to rise.

8. The double-control window glass lifting device for an explosion-proof command vehicle according to claim 1, wherein, It further includes a self-locking mechanism. The self-locking mechanism is arranged in the window frame (28) and is connected to the manual control system.

9. The double-control window glass lifting device for an explosion-proof command vehicle according to claim 1, characterized in that, Both the pneumatic control system and the manual control system are made of explosion-proof and corrosion-resistant materials.

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