Ladder trucks and rescue machinery

Abstract

The present invention provides a ladder and a rescue machine. The ladder includes at least two support parts, a plurality of treading parts and a transport assembly; the support parts are connected in sequence, and the support parts can slide relatively along the length direction of the support parts; the plurality of treading parts respectively include a first treading member and a second treading member, the first treading member and the second treading member are respectively arranged on both sides of at least two support parts, and the plurality of treading parts are arranged along the length direction of at least two support parts; the transport assembly includes a loading part and a walking part; the walking part moves on at least two support parts. The loading part of the transport assembly can transport people, articles or goods, and the walking part is located at the bottom of the loading part and moves relative to at least two support parts to effectively support the transport assembly, thereby improving the transportation stability and transportation efficiency of the transport assembly.

Description

Technical Field

[0001] The present invention relates to the technical field of fire-fighting facilities, and particularly relates to a fire truck ladder and a rescue machine. Background Art

[0002] Currently, in the related art, the support structure of the fire truck ladder is arranged at both ends of the stepping part. This way causes that after using the fire truck ladder for rescue at the rescue site, when the rescue personnel or the rescued personnel move on the fire truck ladder due to injury or physical exhaustion, since the support structure of the fire truck ladder is at both ends and there is no support at the position between both ends of the stepping part, it is easy for people to slip off the fire truck ladder due to loss of strength when stepping on it and moving. Summary of the Invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art or related technologies.

[0004] To this end, a first aspect of the present invention provides a fire truck ladder.

[0005] A second aspect of the present invention provides a rescue machine.

[0006] In view of this, a first aspect of the present invention provides a fire truck ladder, including at least two support parts, a plurality of stepping parts, and a transportation component; the support parts are connected in sequence, and each support part can slide relative to the length direction of the support part; the plurality of stepping parts respectively include a first stepping member and a second stepping member, the first stepping member and the second stepping member are respectively arranged on both sides of at least two support parts, and the plurality of stepping parts are arranged along the length direction of at least two support parts; the transportation component can move relative to at least two support parts. The transportation component includes a loading part and a traveling part; the traveling part moves on at least two support parts.

[0007] In this technical solution, the extension ladder includes at least two support parts and a plurality of stepping parts. Each support part can slide relative to the length direction of the at least two support parts, so that the at least two support parts can be extended and contracted by sliding, thereby changing the length of the extension ladder, enabling the extension ladder to adapt to different environments and different heights, and facilitating rescue workers to carry out rescue work through the extension ladder. The first stepping member and the second stepping member are respectively arranged on both sides of the at least two support parts to install and fix the plurality of stepping parts. The plurality of stepping parts are arranged along the length direction of the at least two support parts, so that the at least two support parts can support the first stepping member and the second stepping member, playing a role of fixed support. Furthermore, when the extension ladder is in use, when a person moves up or down on the extension ladder, when a rescue worker or a rescued person steps on the position between the two ends of the stepping part, the at least two support parts can effectively support the person, reducing the risk of the person slipping due to loss of strength, making the person safer when climbing up or moving down. When the rescued person is unable to climb on the extension ladder or transport items due to injury, the loading part can be set to place the rescued person or items on the loading part. Since the loading part is provided with a walking part that can move relative to the support part, the loading part of the transport component can transport people, items or goods, etc., and the way the walking part moves relative to the at least two support parts effectively supports the transport component, improving the stability and transport efficiency of the transport component.

[0008] In addition, the extension ladder in the above technical solution provided by the present invention may further have the following additional technical features:

[0009] In a technical solution of the present invention, the at least two support parts include a first support part and a second support part; the first support part includes a first sliding part, and the first sliding part is arranged along the length direction of the first support part; the side of the second support part facing the first sliding part includes a matching part, and the matching part can slide relative to the first sliding part.

[0010] In this technical solution, the at least two support parts include a first support part and a second support part. The first support part includes a first sliding part, and the first sliding part is arranged along the length direction of the first support part to install the first sliding part. The side of the second support part facing the first sliding part includes a matching part, and the matching part slides with the first sliding part to install the matching part. By setting the relative sliding between the matching part and the first sliding part, it is convenient for the first support part and the second support part to slide relative to each other, so as to change the length of the extension ladder, and it is more convenient and fast when the extension ladder is extended and contracted.

[0011] In a technical solution of the present invention, the first sliding part is a first chute; the matching part is a first protrusion, and the first protrusion is located in the first chute and slides relative to the first chute.

[0012] In this technical solution, the first sliding part is a first slide groove; the matching part is a first protrusion, the first protrusion is located in the first slide groove, and slides relative to the first slide groove. By setting the first slide groove and the first protrusion, the sliding between the first support part and the second support part is more convenient, which facilitates the extension and retraction of the ladder.

[0013] In one technical solution of the present invention, the side of the second supporting portion facing away from the matching portion includes a second sliding portion, the second sliding portion is a second slide groove, the second slide groove is arranged along the length direction of the second supporting portion, the first slide groove is connected to the second slide groove, the walking portion is located at the bottom of the loading portion, and the walking portion can move between the first slide groove and the second slide groove.

[0014] In this technical solution, by including a second sliding portion on the side of the second support portion away from the matching portion, the first sliding portion cooperates with the second sliding portion, and then when there are multiple second support portions, it is convenient for multiple second support portions to slide relative to each other to achieve the extension and retraction of the ladder. The second sliding portion is a second chute, and the second chute is arranged along the length direction of the second support portion so that the first chute and the second chute form a through chute. The walking portion is located at the bottom of the loading portion and can move between the first chute and the second chute, so that the loading portion installed with the walking portion can slide on the first support portion and the second support portion, so that the transport component can transport the wounded and goods at the rescue site, thereby improving the efficiency of transportation.

[0015] In one technical solution of the present invention, the walking part includes a positioning part, two positioning wheels and an auxiliary wheel; the positioning part is connected to the loading part; a rim is provided on the outer side of each of the two positioning wheels along the circumferential direction, the two positioning wheels are rotatably connected to the positioning part, the two positioning wheels are respectively abutted against the end faces of the two side walls forming the first slide groove and the second slide groove facing the loading part, and the rims are located on the outer sides of the side walls; the auxiliary wheel is rotatably connected to the positioning part, and can move between the first slide groove and the second slide groove.

[0016] In this technical solution, the traveling part includes a positioning part, two positioning wheels and an auxiliary wheel. The positioning part is connected to the loading part to achieve the installation of the positioning part. A rim is circumferentially arranged on the outer side of each of the two positioning wheels. Two rotating shafts are arranged on the positioning part, and the two positioning wheels are sleeved on the two rotating shafts, so that the two positioning wheels are rotatably connected to the positioning part. The two positioning wheels are respectively abutted against the end faces of the two side walls forming the first chute and the second chute and facing the loading part. When the transportation component moves, the two positioning wheels can rotate on the end faces of the two side walls facing the loading part, so that the two positioning wheels can guide the movement of the traveling part, thereby ensuring that the traveling part moves along the length direction of at least two supporting parts. The rim is located outside the side wall. By setting the rim, the positioning of the traveling part during the movement can be realized when the positioning wheel moves. The auxiliary wheel is rotatably connected to the positioning part and can move between the first chute and the second chute. By setting the auxiliary wheel, the traveling part can be prevented from derailing during the movement, thereby ensuring the stable operation of the traveling part and improving the safety of the movement of the traveling part. Through the auxiliary sliding, the risk of riding the wheel and derailing can be reduced.

[0017] In a technical solution of the present invention, the number of traveling parts is two. One traveling part is located at one end of the loading part, and the other traveling part is located at the other end of the loading part.

[0018] In this technical solution, the number of traveling parts is two. One of the two traveling parts is located at one end of the loading part, and the other traveling part is located at the other end of the loading part. That is, one traveling part is arranged at each of the two ends of the traveling part along the sliding direction, which can further improve the stability of the transportation component during movement. Moreover, arranging traveling parts at both ends can prevent the transportation component from tipping over due to different forces at both ends during inclined transportation.

[0019] In a technical solution of the present invention, one end of the second support part close to the first support part includes a first transition part; the thickness of the first transition part gradually decreases from the end close to the second support part to the end away from the second support part.

[0020] In this technical solution, one end of the second support part close to the first support part includes a first transition part. By setting the first transition part, it is convenient for the transportation component to move from the first support part to the second support part or from the second support part to the first support part. The thickness of the first transition part gradually decreases from the end close to the second support part to the end away from the second support part, so that the first chute and the second chute form a through structure, thereby ensuring the smooth sliding of the transportation component without reducing the strength of the support part and without affecting climbing.

[0021] In a technical solution of the present invention, the ladder also includes a driving part, and the driving part is connected to the transportation component to drive the transportation component to move relative to at least two support parts.

[0022] In this technical solution, the aerial ladder further includes a driving part connected to the transportation component, which drives the transportation component to move relative to at least two supporting parts, so as to realize that during rescue, the transportation component can be quickly moved, thereby improving the rescue efficiency.

[0023] In one technical solution of the present invention, the aerial ladder further includes a handrail component, and the handrail component is connected to one end of a plurality of stepping parts away from at least two supporting parts.

[0024] In this technical solution, the aerial ladder further includes a handrail component, and the handrail component is connected to one end of a plurality of stepping parts away from at least two supporting parts, so as to realize the installation and fixation of the handrail component, and further support personnel when climbing or descending on the aerial ladder. Compared with the method of fixing the ladder frame on a semi-circular slideway without handrail support, it can effectively prevent personnel from falling, thus ensuring the safety of personnel during movement.

[0025] The second aspect of the present invention provides a rescue machine, including the aerial ladder and the telescopic arm in any of the above technical solutions; the telescopic arm is connected to the aerial ladder and can drive the aerial ladder to extend or retract.

[0026] In this technical solution, the rescue machine includes an aerial ladder and a telescopic arm. The telescopic arm is connected to the aerial ladder and can drive the aerial ladder to extend or retract, so that the telescopic arm can realize the telescoping of the aerial ladder through telescoping, thereby realizing the change of the length of the aerial ladder to adapt to different rescue scenarios.

[0027] The additional aspects and advantages of the present invention will be partly given in the following description, partly will become obvious from the following description, or will be understood through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The above and / or additional aspects and advantages of the present invention will become obvious and easy to understand from the description of the embodiments in conjunction with the following drawings, in which:

[0029] Figure 1 One of the cross-sectional views of the aerial ladder according to an embodiment of the present invention is shown;

[0030] Figure 2 One of the structural schematic diagrams of the aerial ladder according to an embodiment of the present invention is shown;

[0031] Figure 3 Another cross-sectional view of the aerial ladder according to an embodiment of the present invention is shown;

[0032] Figure 4 Another structural schematic diagram of the aerial ladder according to an embodiment of the present invention is shown;

[0033] Figure 5Shows the third structural schematic diagram of the aerial ladder according to an embodiment of the present invention;

[0034] Figure 6 Shows the third cross-sectional view of the aerial ladder according to an embodiment of the present invention;

[0035] Figure 7 Shows the first schematic diagram of the transportation component according to an embodiment of the present invention;

[0036] Figure 8 Shows the second schematic diagram of the transportation component according to an embodiment of the present invention.

[0037] Wherein, Figures 1 to 8 The corresponding relationship between the reference numerals and the component names in

[0038] 100 aerial ladder, 110 support part, 112 first support part, 1122 first sliding part, 1124 first connecting part, 1126 first chute, 114 second support part, 1142 mating part, 1144 second chute, 1146 first transition part, 1148 second connecting part, 1149 first protruding part, 116 third support part, 118 fourth support part, 120 stepping part, 130 transportation component, 131 loading part, 132 footrest, 133 backrest, 134 second handrail, 135 safety hole, 136 anti-sway support, 137 walking part, 1372 positioning part, 1374 positioning wheel, 1376 auxiliary wheel, 1378 wheel rim, 140 handrail assembly, 142 first handrail, 144 connecting rod. Detailed implementation manners

[0039] In order to more clearly understand the above-mentioned objects, features and advantages of the present invention, the present invention will be further described in detail below with reference to the drawings and specific implementation manners. It should be noted that, without conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

[0040] In the following description, many specific details are set forth in order to fully understand the present invention. However, the present invention can also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited by the specific embodiments disclosed below.

[0041] Next, refer to Figures 1 to 8 Describe the aerial ladder 100 and rescue machinery according to some embodiments of the present invention.

[0042] As Figure 1 And Figure 2As shown, the first aspect of this embodiment provides a fire truck ladder 100, which includes at least two support parts 110, a plurality of stepping parts 120, and a transportation component; each support part 110 is connected in sequence, and each support part can slide relative to the length direction of the support part 110; the plurality of stepping parts 120 respectively include a first stepping member and a second stepping member, the first stepping member and the second stepping member are respectively arranged on both sides of at least two support parts 110, and the plurality of stepping parts 120 are arranged along the length direction of at least two support parts 110; the transportation component 130 can move relative to at least two support parts 110. The transportation component 130 includes a loading part 131 and a walking part 137; the walking part 137 moves on at least two support parts 110.

[0043] In this embodiment, the fire truck ladder 100 includes at least two support parts 110 and a plurality of stepping parts 120. Each support part 110 can slide relative to the length direction of at least two support parts 110, so that at least two support parts 110 can be extended and contracted by sliding, thereby the length of the fire truck ladder 100 can be changed, so that the fire truck ladder 100 can adapt to different environments and different heights, which is convenient for rescue personnel to carry out rescue work through the fire truck ladder 100. The first stepping member and the second stepping member are respectively arranged on both sides of at least two support parts 110 to realize the installation and fixation of the plurality of stepping parts 120. The plurality of stepping parts 120 are arranged along the length direction of at least two support parts 110, so that at least two support parts 110 can support the first stepping member and the second stepping member, which can play a role of fixed support. Furthermore, when the fire truck ladder 100 is in use, when a person goes up or down on the fire truck ladder 100, when a rescue personnel or a rescued person steps on the position between the two ends of the stepping part 120, at least two support parts 110 can effectively support the person, reducing the risk of the person slipping due to loss of strength, making the person safer when climbing up and moving down; and when the rescued person is unable to climb on the fire truck ladder 100 or transport items, etc. due to injury, by setting the loading part 131, the rescued person or items can be placed on the loading part 131. Since the loading part 131 is provided with a walking part that can move relative to the support part, the transportation component 130 can transport people, items or goods, etc., and the way that the walking part 137 moves relative to at least two support parts 110 effectively supports the transportation component 130, improving the stability and transportation efficiency of the transportation component 130.

[0044] Specifically, when dealing with high-rise building fires at present, aerial platform fire trucks are mostly used for rescue and fire extinguishing. The ladder 100 and the work bucket are mainly used to transport personnel and fire-fighting materials. For the ladder 100 device, the support structure of the general ladder 100 is set at both ends of the stepping part 120. This way, when people move on the ladder 100 or transport the rescued wounded, the rescued people often have problems such as acrophobia, panic, and injury. During the climbing process, abnormal problems such as slipping due to loss of strength and limpness are likely to occur. When a person loses strength, their feet are likely to step into the gap of the stepping part 120 and cause slipping, which is likely to cause damage to the personal safety of the person. Therefore, in most rescue scenarios, the ladder 100 is basically not selected for rescue, and the ideal rescue function of the ladder 100 is difficult to play. In the present application, multiple stepping parts 120 are arranged on both sides of at least two support parts 110 and are arranged along the length direction of at least two support parts 110. At least two support parts 110 are arranged in the middle. Without affecting crawling, it can effectively support the core of the person and effectively prevent slipping due to factors such as acrophobia, injury, and panic during fire fighting and rescue.

[0045] Specifically, each support part 110 of at least two support parts 110 is located between both ends of each stepping part 120 among the multiple stepping parts 120.

[0046] Specifically, each support part 110 of at least two support parts 110 is located in the middle between both ends of each stepping part 120 among the multiple stepping parts 120.

[0047] Specifically, as Figure 1 and Figure 3 shown, at least two support parts 110 adopt a nested ladder 100 support structure, and the whole adopts step-by-step nesting, which can follow the boom to expand and contract. At least two support parts 110 as a whole occupy a small space, thus reducing the weight and being beneficial to the ladder 100 and the rescue vehicle to be carried.

[0048] Specifically, as Figure 4 shown, multiple stepping parts 120 are arranged at intervals.

[0049] This embodiment provides a ladder 100. In addition to the technical features of the above embodiments, this embodiment further includes the following technical features.

[0050] Specifically, each support part 110 includes all support parts 110 of at least two support parts 110, or each support part 110 includes some support parts of at least two support parts.

[0051] Specifically, multiple pedal parts are arranged at intervals along the length direction of at least two support parts 110, specifically: multiple first pedal parts are arranged on one side of at least two support parts, and are arranged at intervals along the length direction of at least two support parts 110; multiple second pedal parts are arranged on the other side of at least two support parts, and are arranged at intervals along the length direction of at least two support parts 110.

[0052] like Figure 1 and Figure 2 As shown, at least two support parts 110 include a first support part 112 and a second support part 114; the first support part 112 includes a first sliding part 1122, and the first sliding part 1122 is arranged along the length direction of the first support part 112; the second support part 114 includes a matching part 1142 on the side facing the first sliding part 1122, and the matching part 1142 can slide relative to the first sliding part 1122.

[0053] In this embodiment, at least two support parts 110 include a first support part 112 and a second support part 114. The first support part 112 includes a first sliding part 1122, which is arranged along the length direction of the first support part 112 to achieve the installation of the first sliding part 1122. The second support part 114 includes a matching part 1142 on one side facing the first sliding part 1122, and the matching part 1142 matches with the first sliding part 1122 to achieve the installation of the matching part 1142. By setting the relative sliding between the matching part and the first sliding part 1122, the relative sliding between the first support part 112 and the second support part 114 is facilitated to achieve the change of the length of the ladder 100, so that it is more convenient and quick when the ladder 100 is extended and retracted.

[0054] Specifically, the first sliding portion 1122 is a first sliding rail, and the second sliding portion is a second sliding rail.

[0055] Specifically, if Figure 2 and Figure 5 As shown, when at least two support parts 110 are installed on a rescue vehicle or rescue machine, the first support part 112 is close to one end of the rescue vehicle or rescue machine, and the rescue vehicle or rescue machine is provided with a telescopic arm, that is, the first support part 112 is provided with first connecting parts 1124 at both ends along its length direction, and the first connecting parts 1124 are provided to protect and support one end of the first sliding part 1122 to prevent the first sliding part 1122 from being deformed. The second support part 114 is provided with a second connecting part 1148 at one end away from the first support part 112, and the second connecting part 1148 is provided to protect and support one end of the second support part 114 away from the first support part 112 to prevent the first sliding part 1122 or the second support part 114 from being deformed, thereby playing a protective role.

[0056] This embodiment provides a ladder truck 100. In addition to the technical features of the above embodiments, this embodiment further includes the following technical features.

[0057] As Figure 6 shown, the first sliding part 1122 is the first chute 1126; the mating part 1142 is the first protrusion 1149. The first protrusion 1149 is located within the first chute 1126 and slides relative to the first chute 1126.

[0058] In this embodiment, the first sliding part 1122 is the first chute 1126; the mating part 1142 is the first protrusion 1149. The first protrusion 1149 is located within the first chute 1126 and slides relative to the first chute 1126. By providing the first chute 1126 and the first protrusion 1149, the sliding between the first support part 112 and the second support part 114 becomes more convenient, facilitating the telescoping movement of the ladder truck 100.

[0059] This embodiment provides a ladder truck 100. In addition to the technical features of the above embodiments, this embodiment further includes the following technical features.

[0060] As Figure 6 and Figure 7 shown, the side of the second support part 114 facing away from the mating part 1142 includes a second sliding part. The second sliding part is the second chute 1144. The second chute 1144 is provided along the length direction of the second support part 110. The first chute 1126 is in communication with the second chute 1144. The traveling part 137 is located at the bottom of the loading part 131, and the traveling part 137 can move between the first chute 1126 and the second chute 1144.

[0061] In this embodiment, by including a second sliding part on the side of the second support part 114 facing away from the mating part 1142, the first sliding part 1122 cooperates with the second sliding part. Thus, when there are multiple second support parts, it is convenient for relative sliding between the multiple second support parts to achieve the telescoping of the ladder truck 100. The second sliding part is the second chute 1144, and the second chute 1144 is provided along the length direction of the second support part 110, so that the first chute 1126 and the second chute 1144 form a through chute. The traveling part 137 is located at the bottom of the loading part 131 and can move between the first chute 1126 and the second chute 1144, enabling the loading part 131 installed together with the traveling part 137 to slide on the first support part 112 and the second support part 114, thereby allowing the transportation assembly 130 to convey the wounded and goods at the rescue site, thus improving the transportation efficiency.

[0062] Specifically, the transportation assembly 130 is a trolley.

[0063] Specifically, the other side of the traveling part 137 can move between the first sliding groove 1126 and the second sliding groove 1144, so that the first sliding groove 1126 and the second sliding groove 1144 can not only be used for the nested telescoping of the plurality of supporting parts 110, but also be used as sliding ways for the sliding of the transportation component 130. To ensure the continuous stability of the sliding, the reuse of the structure is realized.

[0064] Specifically, in fire rescue, generally, personnel and articles are directly slid in the sliding way to realize the transportation of personnel and articles. However, after being rescued, the body of the personnel may have been injured, such as skin injury. At this time, if sliding in the sliding way on the fire truck ladder 100, it will cause friction with the human body, which is likely to cause secondary injury to the human body and further aggravate the injury condition. And when transporting articles, because the articles are too large, they are likely to collide when sliding in the sliding way, so the safety of transporting personnel and articles is not high. In this application, the transportation component 130 is used to transport personnel and articles, so that personnel can directly sit on the loading part 131 or fix the articles on the loading part 131 for transportation. Since the loading part 131 can slide relative to at least two supporting parts 110, the friction between the body of the personnel and the fire truck ladder 100 can be avoided, and secondary injury to the human body can be avoided. For articles, collision during transportation can be avoided, thus improving the safety of transporting personnel and articles.

[0065] Specifically, the fire truck ladder 100 in fire rescue is generally of a semi-closed structure, that is, a plurality of ladder rods are arranged at intervals at the opening position of the sliding way. When transporting personnel and articles downward, the semi-circular bottom plus the ladder rods are likely to cause sliding jamming and low passability, and the rescue process is easily affected. And in such a way, if people are to pass through, considering obese people, the cross-sectional size needs to be enlarged, which will inevitably occupy a large amount of space and weight and is not conducive to vehicle loading. In this application, the transportation component 130 is arranged on at least two supporting parts 110 to transport personnel and articles. Since the transportation component 130 is located above the plurality of stepping parts 120, the plurality of stepping parts 120 can be avoided from jamming the personnel and articles during transportation, and a large amount of space and weight will not be occupied.

[0066] This embodiment provides a fire truck ladder 100. In addition to the technical features of the above embodiment, this embodiment further includes the following technical features.

[0067] Such as Figure 7 and Figure 8As shown, the traveling part 137 includes a positioning part 1372, two positioning wheels 1374 and an auxiliary wheel 1376; the positioning part 1372 is connected to the loading part 131; on the outer side of each of the two positioning wheels 1374, a rim 1378 is circumferentially provided, the two positioning wheels 1374 are rotatably connected to the positioning part 1372, the two positioning wheels 1374 respectively abut against the end faces of the two side walls forming the first chute 1126 and the second chute 1144 facing the loading part, and the rim 1378 is located outside the side walls; the auxiliary wheel 1376 is rotatably connected to the positioning part 1372 and can move between the first chute 1126 and the second chute 1144.

[0068] In this embodiment, the traveling part 137 includes a positioning part 1372, two positioning wheels 1374 and an auxiliary wheel 1376. The positioning part 1372 is connected to the loading part 131 to achieve the installation of the positioning part 1372. On the outer side of each of the two positioning wheels 1374, a rim 1378 is circumferentially provided. Two rotating shafts are provided on the positioning part 1372, and the two positioning wheels 1374 are sleeved on the two rotating shafts, so that the two positioning wheels 1374 are rotatably connected to the positioning part 1372. The two positioning wheels 1374 respectively abut against the end faces of the two side walls forming the first chute 1126 and the second chute 1144 facing the loading part 131. When the transportation component 130 moves, the two positioning wheels 1374 can rotate on the end faces of the two side walls facing the loading part, so that the two positioning wheels 1374 can guide the movement of the traveling part 137, thereby ensuring that the traveling part 137 moves along the length direction of at least two supporting parts 110. The rim 1378 is located outside the side walls. By providing the rim 1378, when the positioning wheel 1374 moves, positioning during the movement of the traveling part 137 can be achieved. The auxiliary wheel 1376 is rotatably connected to the positioning part 1372 and can move between the first chute 1126 and the second chute 1144. By providing the auxiliary wheel 1376, derailment of the traveling part 137 during movement can be prevented, thereby ensuring the smooth operation of the traveling part 137 and improving the safety of the movement of the traveling part 137. Through auxiliary sliding, the risks of riding on the wheel and derailment can be reduced.

[0069] Specifically, the outer side of each of the two positioning wheels 1374 is the side away from at least two supporting parts 110.

[0070] Specifically, the positioning part 1372 is installed at the bottom of the loading part 131.

[0071] This embodiment provides a ladder truck 100. In addition to the technical features of the above embodiment, this embodiment further includes the following technical features.

[0072] As Figure 7As shown, there are two walking parts 137 , one of which is located at one end of the loading part 131 , and the other walking part 137 is located at the other end of the loading part 131 .

[0073] In this embodiment, there are two walking parts 137, one of which is located at one end of the loading part 131, and the other is located at the other end of the loading part 131, that is, a walking part 137 is respectively provided at both ends of the walking part 137 along the sliding direction, which can further improve the stability of the transport component 130 during movement, and the walking parts 137 are provided at both ends to prevent the transport component 130 from overturning due to different forces at both ends during tilted transportation.

[0074] This embodiment provides a ladder 100. In addition to the technical features of the above-mentioned embodiments, this embodiment further includes the following technical features.

[0075] like Figure 7 As shown, one end of the second support portion 114 close to the first support portion 112 includes a first transition portion 1146 ; the thickness of the first transition portion 1146 gradually decreases from the end close to the second support portion 114 to the end away from the second support portion 114 .

[0076] In this embodiment, the end of the second support portion 114 close to the first support portion 112 includes a first transition portion 1146. By providing the first transition portion 1146, it is convenient for the transport component 130 to move from the first support portion 112 to the second support portion 114, or from the second support portion 114 to the first support portion 112. The thickness of the first transition portion 1146 gradually decreases from the end close to the second support portion 114 to the end away from the second support portion 114, so that the first slide groove 1126 and the second slide groove 1144 form a through structure, so that the strength of the support portion 110 is not reduced and climbing is not affected, while ensuring smooth sliding of the transport component 130.

[0077] Specifically, the first transition portion 1146 adopts an oblique smooth transition. Such a through-type design reduces the bumps during the sliding process of the transport component 130, and can more safely and stably perform round trip operations.

[0078] Specifically, Figure 1 and Figure 2As shown, at least two support parts 110 further include a third support part 116 and a fourth support part 118. The third support part 116 and the fourth support part 118 have the same structure as the second support part 114. The first support part 112, the second support part 114, the third support part 116, and the fourth support part 118 are nested with each other. One side of the second support part 114 is fitted on the first support part 112 and can telescopically move relative to the first support part 112; one side of the third support part 116 is fitted on the second support part 114 and can telescopically move relative to the second support part 114; one side of the fourth support part 118 is fitted on the third support part 116 and can telescopically move relative to the third support part 116. The third support part 116 and the fourth support part 118 have the same structure as the second support part 114, that is, the number of the second support parts 114 is multiple, and the multiple second support parts 114 are arranged in a nested manner. One end of each second support part 114 close to the first support part 112 includes a first transition part 1146. Through a special transition design at the docking part of each section and considering the telescoping and ladder rod arrangement in the dimension design, the through - connection of the sliding groove structure is realized while not affecting the normal function, ensuring the continuous, stable, and safe sliding of the trolley assembly back and forth.

[0079] This embodiment provides a fire truck ladder 100. In addition to the technical features of the above - mentioned embodiments, this embodiment further includes the following technical features.

[0080] The fire truck ladder 100 further includes a driving part, and the driving part is connected to the transportation component 130 to drive the transportation component 130 to move relative to at least two support parts 110.

[0081] In this embodiment, the fire truck ladder 100 further includes a driving part connected to the transportation component 130 to drive the transportation component 130 to move relative to at least two support parts 110, so as to quickly move the transportation component 130 during rescue, thereby improving the rescue efficiency.

[0082] Specifically, a safety hole 135 is provided on the loading part 131. Anti - swing supports 136 are provided on both sides of the bottom of the transportation component 130 to prevent the transportation component 130 from swinging left and right and falling, and safety holes 135 are provided on the upper part for binding.

[0083] Specifically, a backrest 133 is provided on one side of the loading part 131 along the length direction of the first support part 112, and a footrest 132 is provided on the other side of the loading part 131 along the length direction of the first support part 112 to support the personnel, thereby ensuring the stability during the transportation of the personnel and facilitating the fixed transportation of the personnel and goods.

[0084] Specifically, a guardrail and a safety belt are provided on one side of the loading part 131 with the pedal 132. The guardrail is rotatably connected to the loading part 131. When transporting personnel, the personnel are placed on the loading part 131, and the guardrail is rotated in front of the personnel, so that the guardrail can protect the personnel when the transport component 130 moves. When the guardrail is rotated in front of the personnel, the safety belt can be pulled to further protect the personnel, thereby improving the safety performance of the transport component 130. The guardrail has two states: unlocked and locked. The guardrail is locked after the transported personnel sit down, and unlocked when the transported personnel need to leave the seat. The safety performance of the transport component 130 is improved in conjunction with the safety belt, thereby reducing the anxiety of the transported personnel.

[0085] Specifically, second handrails 134 are provided on both sides of the loading portion 131 along the width direction of the first supporting portion 112, so that when transporting personnel, the personnel can hold the second handrails 134 with both hands to ensure their own stability, thereby improving safety.

[0086] Specifically, the driving component is a traction rope. When it is necessary to transport wounded people or fire-fighting and rescue materials, the transportation component 130 can be loaded into the first slide groove 1126 and directly inserted. The traction rope is connected to the lower back of the transportation component 130. During rescue or transportation, the personnel or goods can be fixed by the traction rope using the safety hole 135, the second handrail 134 and other structures of the transportation component 130 itself. The transportation component 130 is driven by the winch of the traction rope to move along the length of the first support part 112, thereby realizing rapid rescue of the ladder 100.

[0087] Specifically, the traction rope is a steel wire rope. Since the steel wire rope has a large safety factor, it is safer and more reliable when used, can withstand a larger load, and has high tensile strength and toughness, thereby facilitating the pulling of the conveying assembly.

[0088] Specifically, the driving component is a motor capable of autonomous driving.

[0089] This embodiment provides a ladder 100. In addition to the technical features of the above-mentioned embodiments, this embodiment further includes the following technical features.

[0090] like Figure 1 and Figure 2 As shown, the ladder 100 further includes a handrail assembly 140 , which is connected to one end of the plurality of treading portions 120 away from the at least two supporting portions 110 .

[0091] In this embodiment, the aerial ladder 100 further includes a handrail assembly 140. The handrail assembly 140 is connected to one end of a plurality of tread portions 120 away from at least two support portions 110 to achieve the installation and fixation of the handrail assembly 140, so as to support personnel when climbing or descending on the aerial ladder 100. Compared with the method of fixing the ladder frame on a semi-circular slideway without handrail support, it can effectively prevent personnel from falling, thereby ensuring the safety of personnel during movement.

[0092] Specifically, the handrail assembly 140 includes a first handrail 142 and a plurality of connecting rods 144. The plurality of connecting rods 144 are connected to one end of a plurality of tread portions 120 away from at least two support portions 110. One end of the plurality of connecting rods 144 is detachably connected to the plurality of tread portions 120, and the first handrail 142 is detachably connected to the other ends of the plurality of connecting rods 144 along the length direction of at least two support portions 110, so that the plurality of connections can support the first handrail 142, thereby enabling the first handrail 142 to support personnel ascending or descending to prevent personnel from falling and causing harm to the human body. The plurality of connecting rods 144 are provided with a detachable structure. In the case of use without the protection of the handrail assembly 140, weight reduction can be achieved by disassembly, which simplifies the structure and serves other rescue methods, so that it is possible to choose whether to install the handrail assembly 140 according to different rescue situations.

[0093] Specifically, the plurality of connecting rods 144 can be arranged in parallel or crosswise. In addition, the plurality of connecting rods 144 can be in the same plane as the tread portions 120 and crosswise with the tread portions 120, thereby increasing the layout density of the connecting rods 144 and enhancing the safety and stability performance of the aerial ladder 100.

[0094] This embodiment provides a rescue machine, including the aerial ladder 100 and a telescopic arm in the above embodiment; the telescopic arm is connected to the aerial ladder 100 and can drive the aerial ladder 100 to extend or contract.

[0095] In this embodiment, the rescue machine includes an aerial ladder 100 and a telescopic arm. The telescopic arm is connected to the aerial ladder 100 and can drive the aerial ladder 100 to extend or contract, so that the telescopic arm can realize the extension and contraction of the aerial ladder 100 through telescoping, thereby realizing the change of the length of the aerial ladder 100 to adapt to different rescue scenarios.

[0096] Specifically, the rescue machine is a fire truck.

[0097] In the claims, the specification and the drawings of the present invention, the term "a plurality of" means two or more, unless otherwise clearly defined. The orientation or positional relationship indicated by terms such as "upper", "lower", etc. is based on the orientation or positional relationship shown in the drawings. This is only for more convenient description of the present invention and to simplify the description process, rather than to indicate or imply that the device or element referred to must have the specific orientation described, be constructed and operate in the specific orientation. Therefore, these descriptions should not be construed as limitations on the present invention; terms such as "connected", "installed", "fixed", etc. should all be understood in a broad sense. For example, "connected" can be a fixed connection between multiple objects, a detachable connection between multiple objects, or an integral connection; it can be a direct connection between multiple objects, or an indirect connection between multiple objects through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances of the above data.

[0098] In the claims, the specification and the drawings of the present invention, the description of terms such as "one embodiment", "some embodiments", "specific embodiments", etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In the claims, the specification and the drawings of the present invention, the schematic representations of the above terms do not necessarily refer to the same embodiment or instance. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0099] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A ladder, characterized in that: include: At least two support parts, each of which is connected in sequence and can slide relatively along the length direction of the support part; A plurality of treading parts, the plurality of treading parts respectively comprising a first treading member and a second treading member, the first treading member and the second treading member are respectively arranged on both sides of the at least two supporting parts, and the plurality of treading parts are respectively arranged at intervals along the length direction of the at least two supporting parts; A transport assembly capable of moving relative to at least two supporting parts, the transport assembly comprising a loading part and a walking part, the walking part moving on the at least two supporting parts; The at least two support portions include a first support portion and a second support portion; The first support portion includes a first sliding portion, and the first sliding portion is arranged along the length direction of the first support portion; the second support portion includes a matching portion on a side facing the first sliding portion, and the matching portion can slide relative to the first sliding portion; The first sliding portion is a first sliding groove; the matching portion is a first protruding portion, the first protruding portion is located in the first sliding groove and slides relative to the first sliding groove; The side of the second supporting portion facing away from the matching portion includes a second sliding portion, the second sliding portion is a second slide groove, the second slide groove is arranged along the length direction of the second supporting portion, and the first slide groove is connected to the second slide groove; the walking portion is located at the bottom of the loading portion, and the walking portion can move between the first slide groove and the second slide groove.

2. The ladder according to claim 1, wherein The walking part comprises: A positioning portion connected to the loading portion; Two positioning wheels, each of which is provided with a wheel rim on the outer side along the circumferential direction, the two positioning wheels are rotatably connected with the positioning portion, the two positioning wheels are respectively in contact with the end surfaces of the two side walls forming the first slide groove and the second slide groove facing the loading portion, and the wheel rim is located on the outer side of the side walls; The auxiliary wheel is rotatably connected to the positioning portion and can move between the first sliding groove and the second sliding groove.

3. The ladder according to claim 2, characterized in that, The number of the walking parts is two, one of which is located at one end of the loading part, and the other walking part is located at the other end of the loading part.

4. The ladder according to claim 1, characterized in that, One end of the second supporting portion close to the first supporting portion includes a first transition portion; a thickness of the first transition portion gradually decreases from one end close to the second supporting portion to one end away from the second supporting portion.

5. The ladder according to claim 1, characterized in that, Also includes: The driving part is connected to the transport component and drives the transport component to move relative to the at least two supporting parts.

6. The aerial ladder according to any one of claims 1 to 5, characterized in that, Also includes: An armrest assembly is connected to one end of the plurality of treading parts away from the at least two supporting parts.

7. A rescue machine, characterized in that, include: The ladder according to any one of claims 1 to 6; A telescopic arm is connected to the ladder and can drive the ladder to extend or retract.

Images