Pneumatic mobile loading device and fire truck with the same

Abstract

The present invention discloses a pneumatic mobile loading device and a fire truck equipped with the device, which relates to the field of mechanical transportation and aims to solve the problem of inconvenience in carrying heavier objects when transported by fire trucks. The key points of the technical solution are: a pneumatic mobile loading device, comprising a bracket and a loader for loading objects, the bracket being connected to a horizontal moving mechanism, the horizontal moving mechanism being used to drive the bracket to move horizontally, the bracket also being equipped with a swing-out mechanism and a lowering mechanism, the loader being mounted on the lowering mechanism, the bracket being rotatably connected to the swing-out mechanism for rotating and sending the lowering mechanism out, and the lowering mechanism being used to move the loader vertically, thereby realizing the transportation of the loader. The pneumatic mobile loading device of the present invention and the fire truck equipped with the device can conveniently load heavier objects and move them from a higher place to a lower place.

Description

Technical Field

[0001] The present invention relates to the field of fire-fighting equipment, and more particularly to a pneumatic mobile loading device and a fire truck with the pneumatic mobile loading device. Background Art

[0002] Following the restructuring of the fire brigade, firefighter costs have continued to rise. Hydraulic lifting is prohibitively expensive and power-hungry for handling firefighting equipment, such as electric robots, escape air cushions, hand pumps, hose trailers, and equipment modules used on fire trucks, weighing 50 to 300 kilograms. This increases the strain on batteries and reduces the energy consumption of firefighters during deployment and recovery. Current technical improvements within fire departments are focused on reducing firefighter energy consumption, improving safety, and shortening deployment time.

[0003] Therefore, the present invention proposes a new solution to improve this problem. Summary of the Invention

[0004] In view of the shortcomings of the existing technology, the purpose of the present invention is to provide a pneumatic mobile loading device and a fire truck with the device, which uses a cylinder as power to achieve horizontal movement and vertical linkage lifting, thereby realizing the transfer of items. The operation is efficient, energy-saving, and easy to use.

[0005] The above technical objectives of the present invention are achieved through the following technical solutions: a pneumatic mobile loading device, comprising a bracket and a loader for loading objects, the bracket being connected to a horizontal moving mechanism, the horizontal moving mechanism being used to drive the bracket to move horizontally, the bracket being also equipped with a swing-out mechanism and a lowering mechanism, the loader being installed on the lowering mechanism, the bracket being rotatably connected to the swing-out mechanism for rotating and sending the lowering mechanism out, and the lowering mechanism being used to move the loader vertically, thereby realizing the transportation of the loader.

[0006] The present invention is further configured as follows: the horizontal movement mechanism includes a horizontally arranged guide rail, the bracket is slidingly connected to the guide rail so that the bracket can only move horizontally, the bracket is rotatably connected to a horizontal movement cylinder, the output ends of the horizontal movement cylinder are rotatably connected to a first horizontal movement push rod and a second horizontal movement push rod, the first horizontal movement push rod is rotatably connected to the bracket, the second horizontal movement push rod is rotatably connected to the guide rail, and the horizontal movement cylinder increases or decreases the angle between the first horizontal movement push rod and the second horizontal movement push rod by telescoping the output end, thereby causing the bracket to move horizontally relative to the guide rail.

[0007] The present invention is further configured as follows: the swing-out mechanism includes an angle connection member fixed on the bracket, the bracket includes a first support member in the vertical direction and a second support member in the horizontal direction, the angle connection member is fixedly installed on the first support member, the angle connection member is rotatably connected to the first connecting rod, the first connecting rod is rotatably connected to the second connecting rod, the second support member is rotatably connected to the third connecting rod, the third connecting rod is rotatably connected to the fourth connecting rod, the fourth connecting rod and the second connecting rod bracket are provided with an L-shaped swing-out member, the two ends of the swing-out member are rotatably connected to the second connecting rod and the fourth connecting rod respectively, and a travel guide member is also fixedly installed on the guide rail, the travel guide is provided with a travel groove, and the travel groove is located on the guide rail. On the side used to send out the lowering mechanism, the third link is extended to form a limiting end, one end of the third link is rotatably connected to the fourth link, and the other end of the third link is the limiting end, and the limiting end is rotatably connected to a roller, and the roller slides along the surface of the travel guide. When the roller slides into the travel groove, the bracket continues to slide on the guide rail, and the third link is restricted by the travel groove, so that the third link rotates, thereby driving the fourth link to rotate, so that the fourth link and the second link swing out, and when the bracket slides so that the roller is about to slide out of the travel groove, the third link drives the fourth link to rotate upward, thereby causing the fourth link and the second link to rotate and be in a vertical state.

[0008] The present invention is further configured as follows: the lowering mechanism includes a mounting member that is vertically slidably connected to the swing-out member, the mounting member is rotatably connected to a fifth connecting rod, the other end of the fifth connecting rod is rotatably connected to a driving member, the driving member is rotatably installed on the swing-out member, and the driving member is also connected to the power output end of the upper and lower moving cylinders, the upper and lower moving cylinders are rotatably connected to the angle connecting member, when the power output end of the upper and lower moving cylinders is extended, the mounting member slides downward relative to the swing-out member, and when the power output end of the upper and lower moving cylinders is retracted, the mounting member slides upward relative to the swing-out member.

[0009] The present invention is further configured as follows: a mounting groove is provided on the mounting member, and a hanging rod is provided on the loader. The hanging rod is set in the mounting groove so that the loader is driven to move when the mounting member moves.

[0010] The present invention is further configured such that an auxiliary power-assisting device is provided between the swing-out mechanism and the lowering mechanism.

[0011] The present invention is further configured as follows: the auxiliary power-assisting device includes a tension spring, one end of the tension spring is fixed on the swing-out member, and the other end of the tension spring is fixed on the mounting member.

[0012] The present invention is further configured as follows: a limiting part is installed at the end of the horizontal moving cylinder, and a limiting rod is fixedly installed on the driving part. When the swing-out mechanism and the lowering mechanism are retracted in the bracket, the limiting rod contacts the top of the limiting part and the limiting part restricts the limiting rod from detaching. When the horizontal moving cylinder rotates to cause the limiting part to tilt downward, the limiting rod is detached from the restriction of the limiting part.

[0013] The present invention is further configured as follows: the loader is configured as a mobile cart, and the mobile cart is used for loading and transporting objects.

[0014] The present invention also provides a fire truck, in which the pneumatic mobile loading device as described above is installed.

[0015] In summary, the present invention has the following beneficial effects:

[0016] 1. This device cleverly utilizes the fact that when the triangular motion approaches a straight line between three points, the thrust arm is the largest. When the lifting is most strenuous, the mechanism efficiency is the highest, achieving a multiplier effect with half the effort. The force state changes from weak to strong and the upward and downward movement cylinder pushes the swing rod to move from strong to weak, which complements each other and makes the equipment run smoothly. In addition, the tension spring force state changes from weak to strong, making the equipment run even more smoothly.

[0017] 2. Using a pneumatic cylinder to first move and then swing about 100 degrees, the firefighting equipment placed on the vehicle can be lowered to the ground, making it easy for one person to take it out. This fills a gap in the industry;

[0018] 3. The cost of pneumatic drive is low, which is 30% of the cost of hydraulic system, with high reliability and other advantages. It cleverly utilizes the mechanism principle to surpass the effects of electric and hydraulic systems. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 The structure of the present invention is schematically shown Figure 1 ;

[0020] Figure 2 The structure of the present invention is schematically shown Figure 2 ;

[0021] Figure 3 The structure of the present invention is schematically shown Figure 3 ;

[0022] Figure 4 The structure of the present invention is schematically shown Figure 4 ;

[0023] Figure 5 The structure of the present invention is schematically shown Figure 5 ;

[0024] Figure 6 The structure of the present invention is schematically shown Figure 6 ;

[0025] Figure 7 The structure of the present invention is schematically shown Figure 7 ;

[0026] Figure 8 for Figure 7 A magnified schematic diagram of part A;

[0027] Figure 9 The structure of the present invention is schematically shown Figure 8 ;

[0028] Figure 10 The structure of the present invention is schematically shown Figure 9 ;

[0029] Figure 11 The structure of the fire truck of the present invention is shown in FIG. Figure 1 ;

[0030] Figure 12 The structure of the fire truck of the present invention is shown in FIG. Figure 2 ;

[0031] Figure 13 The structure of the fire truck of the present invention is shown in FIG. Figure 3 .

[0032] In the figure: 1. bracket; 11. first support member; 12. second support member; 2. loader; 3. horizontal moving mechanism; 31. horizontal moving cylinder; 32. guide rail; 33. first horizontal moving push rod; 34. second horizontal moving push rod; 35. limit member; 4. swing-out mechanism; 41. angle connector; 42. first connecting rod; 43. second connecting rod; 44. swing-out member; 45. third connecting rod; 46. fourth connecting rod; 47. limit end; 48. travel guide; 49. travel groove; 410. roller; 5. lowering mechanism; 51. up and down moving cylinder; 52. driving member; 53. fifth connecting rod; 54. mounting member; 55. cross bar; 56. tension spring; 57. limit rod; 6. fire truck body. DETAILED DESCRIPTION

[0033] The present invention is described in detail below with reference to the accompanying drawings and embodiments.

[0034] Example 1:

[0035] A pneumatic mobile loading device, such as Figure 1-10 As shown, the pneumatic mobile loading device mainly includes a bracket 1, a loader 2, a horizontal moving mechanism 3, a swinging mechanism 4, and a lowering mechanism 5.

[0036] As attached Figure 1 and 2 The state shown is that the pneumatic mobile loading device is in the storage state.

[0037] As attached Figure 3 and 4 The state shown is that the pneumatic mobile loading device is in a swung-out state.

[0038] Among them, the horizontal moving mechanism 3 mainly refers to Figure 3 and Figure 4 , which includes a structure driven by a horizontal moving cylinder 31, the horizontal moving cylinder 31 is rotatably connected to the bracket 1, and the output ends of the horizontal moving cylinder 31 are rotatably connected to the first horizontal moving push rod 33 and the second horizontal moving push rod 34, a guide rail 32 is installed under the bracket 1, and the guide rail 32 is provided with two groups, which are located on both sides of the bracket 1. The two sides of the bracket 1 are respectively slidably connected to the guide rails 32, and the two guide rails 32 are horizontally arranged, so that the bracket 13 as a whole can move back and forth horizontally along the guide rail 2. A horizontal rotating shaft can be provided on the bracket 1, and the first horizontal moving push rod 33 is rotatably connected to the rotating shaft of the bracket 1. A rotating shaft is also horizontally installed between the two guide rails 32. The two horizontally movable push rods 34 are rotationally connected to the rotating shaft of the guide rail 32; in this way, when the output end of the horizontally movable cylinder 31 is extended or shortened, the first horizontally movable push rod 33 forms a force on the bracket 1, and the second horizontally movable push rod 34 forms a force on the guide rail 32, thereby driving the bracket 1 to slide. When the angle formed by the first horizontally movable push rod 33 and the second horizontally movable push rod 34 is the largest, the entire bracket 1 is at one end of the guide rail 322, called the outer side, that is, in the extended state. When the angle between the first horizontally movable push rod 33 and the second horizontally movable push rod 34 is the smallest, close to 0°, the entire bracket 1 is at the other end close to the guide rail 32, called the inner side, that is, in the retracted state.

[0039] Among them, the swing mechanism 4 mainly refers to Figure 5 、 Figure 6 、 Figure 7 and Figure 8, which includes an angle connector 41. First, the two sides of the bracket 1 are generally set to an L-shaped structure, each side includes a first support member 11 in the vertical direction and a second support member 12 in the horizontal direction, and the angle connector 41 is fixedly installed on the first support members 11 on both sides. Then, the angle connector 41 is rotatably connected to the first link 42, the first link 42 is rotatably connected to the second link 43, and the third link 45 is rotatably connected to the second support member 12. The third link 45 is rotatably connected to the fourth link 46, and then a swing-out member 44 is rotatably connected between the second link 43 and the fourth link 46. The two sides of the swing-out member 44 are also basically L-shaped, with a horizontal connection in the middle. The rod 55 is fixed, and after the swing-out piece 44 is rotatably connected to the second link 43 and the fourth link 46, the first link 42, the second link 43, the swing-out piece 44, the fourth link 46, the third link 45 and the bracket 1 form a roughly parallelogram structure, and synchronized parallelograms are formed on both sides, so that a stable rotation structure can be achieved; of course, in order to ensure the stability of the above-mentioned structure, the first link 42, the second link 43, the third link 45 and the fourth link 46 all have a certain width, so that they themselves will not shake. Considering the simplicity of the structure, the position where the third link 45 can be installed can be on the horizontal rotating shaft set on the bracket 1.

[0040] At the same time, a limiting end 47 is extended to form the third connecting rod 45, and a travel guide 48 is installed between the guide rails 32 on both sides. The travel guide 48 is provided with two parts respectively fixed on the inner sides of the guide rails 32 on both sides and kept horizontal with the guide rails 32. The limiting end 47 is rotatably connected to the roller 410, and a travel groove 49 is provided in the part of the travel guide 48 close to the above-mentioned outer side. The travel groove 49 is used for the roller 410 to roll on its surface. When the roller 410 enters the travel groove 49, due to the limitation of the front and rear side walls, the third connecting rod 45 can only rotate as a whole, and its rotation axis is the part connected to the bracket 1, that is, the rotating shaft set between the brackets 1 for the rotation connection of the first horizontal moving push rod 33 as mentioned above.

[0041] In this way, the roller 410 can slide or roll along the surface of the travel guide 48. When it does not enter the travel groove 49, the bracket 1 and the swing-out mechanism 4 both show overall horizontal movement. When it moves to the travel groove 49 of the travel guide 48, the limiting end 47 of the third link 45 will slide into the travel groove 49. At this time, when the bracket 1 and the swing-out mechanism 4 continue to be pushed, the third link 45 is forced to rotate, thereby driving the fourth link 46 to swing. Because the first link 42 and the second link 43 have freedom, the swing-out mechanism 4 can be swung from a completely vertical state to a swing-out state.

[0042] Among them, the decentralized agencies 5 mainly refer to Figure 9 and Figure 10 The cam 53 is connected to the support 44 so that the cam 53 is moved upwards and downwards, so that the cam 53 is moved upwards and downwards, and the cam 53 is moved upwards and downwards, so that the cam 53 is moved upwards and downwards, and the cam 53 is moved upwards and downwards, so that the cam 53 is moved upwards and downwards, and the cam 53 is moved upwards and downwards, so that the cam 53 is moved upwards and downwards, and the cam 53 is moved upwards and downwards, so that the cam 53 is moved upwards and downwards, and the cam 53 is moved upwards and downwards, so that the cam 53 is moved upwards and downwards, and the cam 53 is moved upwards and downwards, so that the cam 53 is moved upwards and downwards, and the cam 53 is moved upwards and downwards, so that the cam 53 is moved upwards and downwards, so that the cam 53 is moved upwards and downwards, and the cam 53 is moved upwards and downwards, so that the cam 53 is moved upwards and downwards, so that the cam 53 is moved upwards and downwards, and the cam 53 is moved upwards and downwards, so that the cam 53 is moved upwards and downwards, so that the cam 53 is moved upwards and downwards,

[0043] A groove can be provided on the mounting part 54 as a mounting groove, and a hanging rod can be provided on the loader 2, which is set in the mounting groove through the hanging rod to achieve the lifting of the loader 2. Of course, the loader 2 can be set as a trolley for easy movement, and heavy objects can be loaded and unloaded on the trolley, thereby achieving the lifting and movement of heavy objects.

[0044] In order to further realize the lifting of the pneumatic mobile loading device, an auxiliary power-assisting device is provided between the swing-out mechanism 4 and the lowering mechanism 5. The auxiliary power-assisting device is preferably a tension spring 56. One end of the tension spring 56 is installed on the cross bar 55 of the swing-out member 44, and the other end is installed on the mounting member 54. In this way, when the upper and lower moving cylinder 51 contracts for lifting, the mounting member 54 is better lifted with the help of the tension spring 56.

[0045] At the same time, a limit piece 35 is installed on the upper end surface of the horizontal moving cylinder 31 on the bracket 1, and a limit rod 57 is fixedly installed on the swing-out member 44. When the pneumatic mobile loading device retracts for storage, the limit rod 57 can be stuck on the limit piece 35 to limit the rotation of the swing-out mechanism, and the swing-out mechanism 4 will not swing out due to shaking during transportation, thereby improving the stability of the overall structure; and when the swing-out mechanism 4 needs to be released, when the horizontal moving cylinder 31 and the bracket 1 move to one side of the guide rail 32, the horizontal moving cylinder 31 is limited by the stroke and rotates and tilts relative to the bracket 1, the limit piece 35 also rotates and tilts, and the limit rod 57 is no longer restricted at this time, so the swing-out mechanism 4 can rotate and swing out smoothly.

[0046] The rotational connections described above can all be achieved by conventional latches, or by other methods of achieving the rotational connection, which are not limited here.

[0047] The specific operation steps are as follows: First, the entire pneumatic mobile loading device is in a retracted state. Figure 1 and Figure 2 As shown in the state, when the goods carried in the pneumatic mobile loading device need to be moved and lowered, the horizontal motion cylinder 31 starts to inflate and output air, and its output end extends, thereby driving the first horizontal motion push rod 33 and the second horizontal motion push rod 34 to rotate. During the rotation process, the entire bracket 1 and the swing-out mechanism 4 and the lowering mechanism 5 move as a whole from the contracted state toward one side of the guide rail 31; when it moves to the guide groove 49 of the travel guide 48, the horizontal motion cylinder 31 tilts slightly from its original vertical state, resulting in the horizontal motion cylinder 31 being in a state of rotation. After the limit piece 35 at the upper end of the moving cylinder 31 rotates, it no longer restricts the limit rod 57. At this time, the roller 410 of the third connecting rod 45 enters the stroke groove 49, thereby swinging the fourth connecting rod 46, so that the swing-out mechanism 4 can smoothly rotate from the vertical state, thereby rotating and swinging outward. During the rotation process, the upper and lower moving cylinders 51 act at the same time, pushing the driving member 52 to rotate, so that the mounting member 54 moves downward under the push of the fifth connecting rod 53, thereby transporting the loader 2 located on the mounting member 51 to the specified position, thereby facilitating the removal of the loader 2. Its state is as shown in FIG. Figure 3 and Figure 4 shown.

[0048] When the loader 2 needs to be stored, the loader 2 is hung on the mounting part 54, and then the vertical motion cylinder 51 retracts, causing the mounting part 54 to rise, and at the same time the horizontal moving cylinder 31 also retracts. At this time, the roller 410 rolls in the opposite direction, causing the third connecting rod 45 to rotate, thereby causing the swing-out mechanism 4 to rotate in the opposite direction, that is, to rotate from the swing-out state to the vertical state and retract until the limit rod 57 is retracted to the limit part 35, and then the roller 410 disengages from the stroke groove 49, and the swing-out mechanism 4 and the lowering mechanism 5 are both retracted onto the bracket 1, and the horizontal moving cylinder 31 continues to retract, so that the bracket 1 moves toward the other side of the guide rail 31 and returns to the position as shown. Figure 1 The status shown.

[0049] Example 2:

[0050] A fire truck, such as the Figure 11 、 12 As shown in Figure 13, the pneumatic mobile loading device in Example 1 is installed on the fire truck body 6. After the fire truck body 6 arrives at the destination, the loader with the fire-fighting equipment is moved from the fire truck body 6 and lowered to the ground. The firefighters can then directly move the loader. When it needs to be stored, the loader is directly mounted on the lowering mechanism, and then the pneumatic mobile loading device is started to lift, rotate and retract it, and then it is placed back on the fire truck body 6. The process is very simple, convenient and practical.

[0051] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiment. All technical solutions based on the concept of the present invention are within the scope of protection of the present invention. It should be noted that for those skilled in the art, various improvements and modifications that do not depart from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A pneumatic mobile loading device, comprising a support (1) and a loader (2) for loading objects, characterized in that: The support (1) is connected to a horizontal moving mechanism (3), and the horizontal moving mechanism (3) is used to drive the support (1) to move horizontally. The support (1) is also equipped with a swing-out mechanism (4) and a lowering mechanism (5). The loader (2) is installed on the lowering mechanism (5). The support (1) is rotatably connected to the swing-out mechanism (4) to rotate and send the lowering mechanism (5). The lowering mechanism (5) is used to move the loader (2) vertically, thereby realizing the transportation of the loader (2). The horizontal movement mechanism (3) comprises two horizontally arranged guide rails (32), and the bracket (1) is slidably connected to the guide rails (32) so that the bracket (1) can only move horizontally; The swing-out mechanism (4) comprises an angle connecting member (41) fixed on a bracket (1); the bracket (1) comprises a first supporting member (11) in a vertical direction and a second supporting member (12) in a horizontal direction; the angle connecting member (41) is fixedly mounted on the first supporting member (11); the angle connecting member (41) is rotatably connected to a first connecting rod (42); the first connecting rod (42) is rotatably connected to a second connecting rod (43); the second supporting member (12) is rotatably connected to a third connecting rod (45); The third connecting rod (45) is rotatably connected to the fourth connecting rod (46), and an L-shaped swing-out member (44) is provided between the fourth connecting rod (46) and the second connecting rod (43). The two ends of the swing-out member (44) are rotatably connected to the second connecting rod (43) and the fourth connecting rod (46), respectively. A travel guide member (48) is also fixedly mounted on the two guide rails (32). The travel guide member (48) is provided with a travel groove (49). The travel groove (49) is located at the guide rail (32) to lower the mechanism ( 5) On the side of the delivery, the third connecting rod (45) extends to form a limiting end (47), one end of the third connecting rod (45) is rotatably connected to the fourth connecting rod (46), and the other end of the third connecting rod (45) is the limiting end (47), and the limiting end (47) is rotatably connected to a roller (410), and the roller (410) slides along the surface of the travel guide (48). When the roller (410) slides into the travel groove (49), the bracket (1) continues to slide on the guide rail (32). The third connecting rod (45) is restricted by the travel groove (49), so that the third connecting rod (45) rotates, thereby driving the fourth connecting rod (46) to rotate, so that the fourth connecting rod (46) and the second connecting rod (43) swing out. When the bracket (1) slides so that the roller (410) is about to slide out of the travel groove (49), the third connecting rod (45) drives the fourth connecting rod (46) to rotate upward, so that the fourth connecting rod (46) and the second connecting rod (43) rotate and become vertical.

2. The pneumatic mobile loading device according to claim 1, characterized in that: The bracket (1) is rotatably connected to a horizontally movable cylinder (31), and the output end of the horizontally movable cylinder (31) is rotatably connected to a first horizontally movable push rod (33) and a second horizontally movable push rod (34), respectively. The first horizontally movable push rod (33) is rotatably connected to the bracket (1), and the second horizontally movable push rod (34) is rotatably connected to the guide rail (32). The horizontally movable cylinder (31) increases or decreases the angle between the first horizontally movable push rod (33) and the second horizontally movable push rod (34) by telescoping the output end, thereby causing the bracket (1) to move horizontally relative to the guide rail (32).

3. The pneumatic mobile loading device according to claim 2, characterized in that: The lowering mechanism (5) includes a mounting member (54) vertically slidably connected to the swing-out member (44), the mounting member (54) is rotatably connected to a fifth connecting rod (53), the other end of the fifth connecting rod (53) is rotatably connected to a driving member (52), the driving member (52) is rotatably mounted on the swing-out member (44), the driving member (52) is also connected to a power output end of an up-and-down moving cylinder (51), the up-and-down moving cylinder (51) is rotatably connected to the angle connecting member (41), when the power output end of the up-and-down moving cylinder (51) extends, the mounting member (54) slides downward relative to the swing-out member (44), and when the power output end of the up-and-down moving cylinder (51) contracts, the mounting member (54) slides upward relative to the swing-out member (44).

4. The pneumatic mobile loading device according to claim 3, characterized in that: The mounting member (54) is provided with a mounting groove, and the loader (2) is provided with a hanging rod, which is arranged in the mounting groove so that the loader (2) is driven to move when the mounting member (54) moves.

5. The pneumatic mobile loading device according to claim 3, characterized in that: An auxiliary power-assisting device is also provided between the swing-out mechanism (4) and the lowering mechanism (5).

6. The pneumatic mobile loading device according to claim 5, characterized in that: The auxiliary power-assisting device comprises a tension spring (56), one end of the tension spring (56) is fixed on the swing-out member (44), and the other end of the tension spring (56) is fixed on the mounting member (54).

7. The pneumatic mobile loading device according to claim 3, characterized in that: A limiting member (35) is installed at the end of the horizontal moving cylinder (31), and a limiting rod (57) is fixedly installed on the driving member (52). When the swing-out mechanism (4) and the lowering mechanism (5) are retracted in the bracket (1), the limiting rod (57) contacts the upper part of the limiting member (35) and the limiting member (35) restricts the limiting rod (57) from being disengaged. When the horizontal moving cylinder (31) rotates to cause the limiting member (35) to tilt downward, the limiting rod (57) is disengaged from the restriction of the limiting member (35).

8. The pneumatic mobile loading device according to claim 1, characterized in that: The loader (2) is configured as a mobile trolley, and the mobile trolley is used for loading and transporting objects.

9. A fire truck, comprising a fire truck body (6), characterized in that: The fire truck body (6) is internally installed with a pneumatic mobile loading device as described in any one of claims 1 to 8.

Images