CN211230207U

CN211230207U - Cantilever crane and fire engine of integrated ladder step

Info

Publication number: CN211230207U
Application number: CN201921604109.0U
Authority: CN
Inventors: 杨立新; 周碧池; 杨怀安; 张海廷; 刘美玲; 张海军; 郭颖
Original assignee: Beijing Zhongzhuo Fire Fighting Equipment Co ltd
Current assignee: Beijing Zhongzhuo Fire Fighting Equipment Co ltd
Priority date: 2019-09-25
Filing date: 2019-09-25
Publication date: 2020-08-11
Anticipated expiration: 2029-09-25

Abstract

The utility model belongs to the technical field of the fire engine part technique and specifically relates to a cantilever crane and fire engine of integrated ladder step are related to. An integrated ladder rung boom comprising: a boom main body; the groove body is formed at the upper part of the arm support main body, and the extending direction of the groove body is the same as that of the arm support main body; the ladder rungs are parallel to each other and arranged at intervals along the extending direction of the arm support main body, the ladder rungs are fixedly connected with the side wall of the groove body, and the ladder rungs and the groove bottom of the groove body are arranged at intervals. According to the arm support, the ladder step is fixedly arranged in the groove body formed on the upper side of the arm support main body, so that the center of gravity is located on the upper side of the central axis of the arm support when a fire fighter steps on the ladder step to ascend, and the bearing capacity and the safety of the ladder stand are improved. The tank bottom of cell body sets up the space that forms the preceding sole of holding fire fighter with the interval between a plurality of ladder steps, and the fire fighter of being convenient for tramples. The fire fighting truck comprises the arm support integrated with the ladder step.

Description

Cantilever crane and fire engine of integrated ladder step

Technical Field

The utility model relates to a fire engine part technical field, concretely relates to cantilever crane and fire engine of integrated ladder step.

Background

The elevating platform fire truck is provided with a hydraulic elevating platform, and is a fire truck special for elevating and rescuing high-rise buildings and tall facilities. The boom is used as an important and direct stress part of the fire fighting truck, and the requirements on the strength and the load capacity of the boom are very high.

When fire extinguishing or rescuing high-rise buildings and the like, the crawling ladder is arranged on the arm support to assist fire fighters in climbing to extinguish or rescue fire. However, most of the crawling ladders in the prior art are arranged on one side of the arm support, and the gravity center of a fire fighter deviates to one side of the arm support when the fire is extinguished or rescued at high altitude, so that the carrying capacity of the crawling ladder is low, and certain potential safety hazards exist in the fire extinguishing or rescuing process.

Therefore, it is necessary to design an arm support integrated with a ladder step and a fire fighting truck, which can improve the carrying capacity of the ladder step.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an integrated ladder steps's cantilever crane, through with the fixed setting of ladder steps in the cell body that forms on cantilever crane main part upper portion, the focus is located cantilever crane the central axis's upside when making the fire fighter ascend a height, has improved the bearing capacity of cat ladder.

In order to solve the technical problem, the utility model discloses a following technical scheme:

an aspect of the utility model provides an integrated ladder rung's cantilever crane, include: a boom main body; the groove body is formed at the upper part of the arm support main body, and the extending direction of the groove body is the same as that of the arm support main body; and the ladder rungs are parallel to each other and are arranged at intervals along the extending direction of the arm support main body, the ladder rungs are fixedly connected with the side wall of the groove body, and the ladder rungs are arranged at intervals with the groove bottom of the groove body.

Further, the arm support main body comprises a first side wall and a second side wall, the first side wall extends upwards to form a first extending portion, the second side wall extends upwards to form a second extending portion, and the groove body is formed between the first extending portion and the second extending portion.

Furthermore, a plurality of first mounting holes are formed in the first extending portion, a plurality of second mounting holes corresponding to the first mounting holes one to one are formed in the second extending portion, one end of each ladder step is fixedly connected with the corresponding first mounting hole, and the other end of each ladder step is fixedly connected with the corresponding second mounting hole.

Further, the rungs have a circular cross-section; the cross-sectional shapes of the first mounting hole and the second mounting hole are matched with the cross-sectional shape of the ladder step, and two ends of the ladder step respectively penetrate into the first mounting hole and the second mounting hole.

Further, the arm support main body is provided with a closed section formed by bending a plate.

Further, the top of the arm support main body is recessed into the arm support main body to form the groove body.

Furthermore, the cross section of the groove body is approximately trapezoidal, and the width of the notch of the groove body is larger than that of the groove bottom of the groove body.

Further, the arm support main body is provided with a first side wall and a second side wall which are arranged oppositely, the groove body is provided with a third side wall and a fourth side wall which are arranged oppositely, the third side wall is positioned at the side close to the first side wall, and a first gap is formed between the third side wall and the first side wall; the fourth side wall is positioned close to the second side wall, and a second gap is formed between the fourth side wall and the second side wall; a plurality of first mounting holes are uniformly distributed in the third side wall along the extending direction of the arm support main body, second mounting holes corresponding to the first mounting holes one to one are formed in the fourth side wall, one end of each ladder step is fixedly connected with the corresponding first mounting hole, and the other end of each ladder step is fixedly connected with the corresponding second mounting hole.

Furthermore, the cross section of the ladder step is rectangular; the shapes of the openings of the first mounting hole and the second mounting hole are matched with the cross-sectional shape of the ladder step.

The other aspect of the utility model also provides a fire engine, this fire engine include among the above-mentioned arbitrary technical scheme the cantilever crane of integrated ladder step.

The embodiment of the utility model provides an in one or more technical scheme, following technological effect or advantage have at least:

the embodiment of the utility model provides an in the cantilever crane with the fixed setting of ladder rung in the cell body that cantilever crane main part upside formed, the focus was located cantilever crane the central axis's upside when making the fire fighter trample the ladder rung and ascend a height, has improved the bearing capacity and the security of cat ladder. The tank bottom of cell body and the interval between a plurality of ladders set up the space that forms the sole before holding the fire fighter, and the fire fighter of being convenient for tramples, has further improved the security that the cat ladder used.

Drawings

Fig. 1 is a schematic perspective view of an arm support integrated with a ladder step in a first embodiment of the present invention;

fig. 2 is a schematic cross-sectional view of an arm support integrated with a ladder step in a first embodiment of the present invention;

fig. 3 is a schematic partial perspective view of an arm support integrated with a ladder step in a second embodiment of the present invention and a partial enlarged view thereof.

Description of the reference numerals

100-arm support, 101-arm support main body, 102-trough body, 103-ladder step, 104-first side wall, 105-second side wall, 106-bottom wall, 107-top wall, 108-first extension part, 109-second extension part, 110-first mounting hole and 111-second mounting hole;

200-arm support, 201-arm support main body, 202-trough body, 203-ladder step, 204-first side wall, 205-second side wall, 210-first mounting hole, 211-second mounting hole, 212-third side wall, 213-fourth side wall, 214-first gap, 215-second gap.

Detailed Description

In order to make the above objects, features and advantages of the present invention more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings and detailed description. It should be noted that the embodiments and features of the embodiments of the present invention may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.

For convenience of description, the terms "upper", "lower", "left" and "right" are used in the same way as the drawings, but do not limit the structure of the present invention.

[ EXAMPLES one ]

Fig. 1 illustrates a schematic perspective view of an arm support 100 integrated with a ladder step according to an embodiment of the present invention; fig. 2 is a schematic cross-sectional view of the boom 100 shown in fig. 1.

As shown in fig. 1, an integrated rung boom 100 includes a boom main body 101, a trough 102, and a plurality of rungs 103. The trough 102 is formed at the upper part of the boom main body 101, and the extending direction of the trough 102 is the same as that of the boom main body 101. The multiple mutually parallel rungs 103 are arranged in the trough body 102 at intervals along the extending direction of the arm support main body 201 and fixedly connected with the side wall of the trough body 102, and the multiple rungs 103 are set to be at equal intervals. The ladder steps 103 are arranged in the groove body 102 formed on the upper portion of the arm support main body 101, so that the center of gravity of a firefighter is located on the upper side of the central axis of the arm support when the firefighter steps on the ladder steps 103 to ascend, and the bearing capacity and the safety of the ladder are improved. The space that forms the preceding sole of holding fire fighter is set up at the interval between the tank bottom of cell body 102 and a plurality of ladder steps 103, and the fire fighter of being convenient for tramples, has further improved the security that the cat ladder used.

As shown in fig. 2, the boom body 101 includes a first side wall 104, a second side wall 105, a bottom wall 106, and a top wall 107, and the boom body 101 may be formed by assembling and welding plates, so that the boom body 101 has a high load capacity as a whole. The first sidewall 104 extends upward to form a first extension 108, and the second sidewall 105 extends upward to form a second extension 109. The channel 102 is formed between a first extension 108 and a second extension 109. Preferably, the first extension 108 and the first side wall 104 are integrally formed, and the second extension 109 and the second side wall 105 are integrally formed, so that the connection is prevented from being broken, the bearing capacity of the ladder is limited, and the climbing safety of fire fighters is improved.

As shown in fig. 1 and 2, a plurality of first mounting holes 110 are formed in the first extending portion 108, a plurality of second mounting holes 111 corresponding to the first mounting holes 110 one to one are formed in the second extending portion 109, one end of the rung 103 is fixedly connected to the first mounting holes 110, and the other end of the rung is fixedly connected to the second mounting holes 111, and the fixing connection may be welding. By arranging the first mounting holes 110 and the second mounting holes 111 on the first extension 108 and the second extension 109, the rungs 103 can be positioned accurately, and the mounting efficiency of the rungs 103 is improved.

Preferably, the rung 103 has a circular cross section, the first and

second mounting holes

110 and 111 match the cross sectional shape of the rung 103, and both ends of the rung 103 penetrate the first and

second mounting holes

110 and 111, respectively. When the ladder rung 103 is assembled, the ladder rung 103 can sequentially penetrate through the first mounting hole 110 and the second mounting hole 111, one end of the ladder rung 103 is welded with the first mounting hole 110, and the other end of the ladder rung 103 is welded with the second mounting hole 111, so that the bearing capacity of the ladder rung 103 is increased, the first side wall 104 and the second side wall 105 of the boom main body 101 are reinforced, and the bearing capacity of the whole boom 100 is improved.

It should be noted that the arm support 100 in this embodiment may be applied to a non-telescopic crank arm or a folding arm.

[ example two ]

Fig. 3 illustrates a schematic partial perspective structure of an arm support 200 integrated with a ladder step according to an embodiment of the present invention.

As shown in fig. 3, the difference between the boom 200 in the present embodiment and the first embodiment is that the boom main body 201 in the present embodiment has a closed cross section formed by bending a plate, and the boom main body 201 is processed from one plate, so that the boom main body 201 has a higher load capacity. The groove 202 is formed by the top of the arm support main body 201 sinking into the arm support main body 201. The following description focuses on the forming structure of the arm support main body 201 and the trough 202 in this embodiment, and the description of the same or similar elements as in the first embodiment is omitted.

The section of the groove body 202 is approximately trapezoidal, and the width of the notch of the groove body 202 is larger than the width of the groove bottom of the groove body 202, so that the compression molding of the groove body 202 is facilitated, and the ladder step 203 is conveniently installed in the groove body 202.

The arm support main body 201 is provided with a first side wall 204 and a second side wall 205 which are oppositely arranged, the groove body 202 is provided with a third side wall 212 and a fourth side wall 213 which are oppositely arranged, the third side wall 212 is positioned at one side close to the first side wall 204, and a first gap 214 is formed between the third side wall 213 and the first side wall 204; the fourth sidewall 213 is located at a side close to the second sidewall 205, and a second gap 215 is formed between the fourth sidewall 213 and the second sidewall 205. A plurality of first mounting holes 210 are uniformly distributed on the third side wall 212 along the extending direction of the arm support main body 201, second mounting holes 211 corresponding to the first mounting holes 210 one to one are arranged on the fourth side wall 213, one end of the rung 203 is fixedly connected with the first mounting holes 210, the other end of the rung 203 is fixedly connected with the second mounting holes 211, and the connecting mode can be welding. Preferably, the rungs 203 have a rectangular cross-section, and the first and

second mounting holes

210 and 211 have an aperture shape that matches the cross-sectional shape of the rungs 203. The two ends of the ladder rung 203 can be respectively arranged in the first mounting hole 210 and the second mounting hole 211 in a penetrating manner and fixed by welding, so that the mounting position of the ladder rung 203 is convenient to locate during mounting, the bearing capacity of the ladder rung 203 is enhanced, and the top of the arm support main body 201 is reinforced.

It should be noted that the embodiment can be applied to the basic arm of the telescopic boom 200, and the ladder mounting structure of the boom 200 is simplified.

[ EXAMPLE III ]

The utility model also provides a fire engine, this fire engine include in the arbitrary scheme of the aforesaid integrated ladder step's cantilever crane, this fire engine has the whole beneficial effect of the cantilever crane of integrated ladder step, no longer gives unnecessary details here.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides an integrated ladder rung's cantilever crane which characterized in that includes:

a boom main body;

the groove body is formed at the upper part of the arm support main body, and the extending direction of the groove body is the same as that of the arm support main body; and

the ladder-shaped arm support comprises a groove body, a plurality of ladder steps and a plurality of ladder bars, wherein the groove body is provided with a groove bottom, the plurality of ladder steps are parallel to each other, the ladder steps are arranged at intervals along the extending direction of the arm support main body, the ladder steps are fixedly connected with the side wall of the groove body, and the ladder steps are arranged at intervals with the groove bottom of the groove body.

2. The integrated rung boom of claim 1 wherein the boom body includes a first side wall and a second side wall, the first side wall extending upwardly to form a first extension, the second side wall extending upwardly to form a second extension, the channel being formed between the first extension and the second extension.

3. The integrated rung boom as recited in claim 2, wherein the first extending portion has a plurality of first mounting holes, the second extending portion has a plurality of second mounting holes corresponding to the first mounting holes, one end of the rung is fixedly connected to the first mounting holes, and the other end of the rung is fixedly connected to the second mounting holes.

4. The integrated rung boom of claim 3, wherein the rung has a circular cross-section; the cross-sectional shapes of the first mounting hole and the second mounting hole are matched with the cross-sectional shape of the ladder step, and two ends of the ladder step respectively penetrate into the first mounting hole and the second mounting hole.

5. The integrated rung boom as recited in claim 1, wherein the boom body has a closed cross-section formed by bending a sheet material.

6. The integrated ladder rung boom as recited in claim 5, wherein a top portion of the boom body is recessed into the boom body to form the slot.

7. The integrated ladder rung boom as recited in claim 6, wherein the trough is substantially trapezoidal in cross section and the width of the slot opening is greater than the width of the slot bottom of the trough.

8. The integrated rung boom as recited in claim 7, wherein the boom body has a first side wall and a second side wall that are opposite, the trough has a third side wall and a fourth side wall that are opposite, the third side wall is located near the first side wall, and a first gap is provided between the third side wall and the first side wall; the fourth side wall is positioned close to the second side wall, and a second gap is formed between the fourth side wall and the second side wall; a plurality of first mounting holes are uniformly distributed in the third side wall along the extending direction of the arm support main body, second mounting holes corresponding to the first mounting holes one to one are formed in the fourth side wall, one end of each ladder step is fixedly connected with the corresponding first mounting hole, and the other end of each ladder step is fixedly connected with the corresponding second mounting hole.

9. The integrated rung boom of claim 8 wherein the rung is rectangular in cross-section; the shapes of the openings of the first mounting hole and the second mounting hole are matched with the cross-sectional shape of the ladder step.

10. A fire fighting vehicle, characterized in that it comprises an arm support of an integrated rung according to any one of claims 1 to 9.