Special fire-fighting trailer for metal extension ladder

Abstract

The utility model relates to the technical field of trailers, and discloses a special fire-fighting trailer for a metal extension ladder, which comprises a main shaft rod, moving rollers are rotatably sleeved on two sides of the main shaft rod, a support column is fixed on the top surface of the main shaft rod, and a fixed insertion rod is inserted in the support column. A supporting plate is fixed to the end, extending to the outer side of the supporting column, of the fixing inserting rod, a limiting clamping plate is fixed to the top face of the supporting plate, a fixing screw pipe is fixed to the side edge of the supporting column in a penetrating mode, and a fixing bolt is connected into the fixing screw pipe in a threaded and sleeved mode. The extension ladder can be pulled through the trailer pull rod by holding the auxiliary grip, so that manpower and material resources are saved, the extension ladder is more convenient and labor-saving to transport, the problem that an existing fire-fighting metal extension ladder is time-consuming and labor-consuming to transport is solved, and the rescue efficiency during fire-fighting police is guaranteed.

Description

Technical Field

[0001] The utility model application relates to the technical field of trailers, in particular to a metal ladder trailer specially used for fire fighting. Background Art

[0002] The fifteen-meter metal ladder is suitable for many occasions, such as consumer rescue, construction sites, power equipment maintenance, outdoor billboard repair, etc. It is a very practical tool. Due to its special length, this metal ladder can meet the needs of many high-altitude operations. Commonly used materials are aluminum alloy and steel. Different materials are suitable for different scenarios and needs.

[0003] The fifteen-meter metal ladder is a commonly used equipment in the firefighting and rescue process. It is mainly used for climbing up to rescue people and extinguishing fires during firefighting and disaster relief. The extended height is fifteen meters, the retracted length is six meters, and the weight is eighty-five kilograms. The daily transportation of the fifteen-meter metal ladder requires the cooperation of four people, which is time-consuming and labor-intensive, and will reduce the rescue efficiency to a certain extent. Summary of the invention

[0004] In order to solve the problem that the existing fire-fighting metal ladder is relatively time-consuming and labor-intensive to transport, the utility model provides a metal ladder trailer for fire-fighting to solve the above problem.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A metal ladder trailer for fire fighting, including a main shaft rod, both sides of which are rotatably sleeved with movable rollers, a support column fixed to the top surface of the main shaft rod, and a fixed rod inserted into the support column, one end of the fixed rod extending to the outside of the support column is fixed with a support plate, a limiting clamping plate is fixed to the top surface of the support plate, a fixing screw is fixed through the side of the support column, and a fixing bolt is threadedly sleeved inside the fixing screw, and a limiting clamping groove cooperating with the fixing bolt is opened on the outer surface of the lower part of the fixing rod.

[0007] Furthermore, a trailer rod is fixed to the side of the support column, and an auxiliary handle is fixed to one end of the trailer rod away from the main shaft rod, and the auxiliary handle is perpendicular to the end of the trailer rod away from the main shaft rod.

[0008] Furthermore, reinforcing struts are fixed on both sides of the support column, and the bottom surfaces of the reinforcing struts are fixed on the top surface of the main shaft rod, and the two reinforcing struts are arranged in an inclined shape designed to face each other.

[0009] Furthermore, the limit card plate is configured to be in a "U" shape that cooperates with the ladder crossbar, the limit card plate is located above the movable roller, and the width of the limit card plate is smaller than the width of the main shaft rod.

[0010] Furthermore, a thread cooperating with a fixing bolt is provided inside the fixing screw tube, and the length of the fixing screw tube is shorter than the length of the fixing bolt.

[0011] Furthermore, the limiting slot is configured as a ring that cooperates with the fixing bolt, and the distance between the top surface of the fixing screw and the top surface of the support column is equal to the distance between the top surface of the limiting slot and the bottom surface of the support plate.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. In the utility model, the horizontal bar of the ladder is engaged inside the limit card plate, and the ladder can be pulled by holding the auxiliary handle and through the trailer pull rod, which saves manpower and material resources, makes the ladder more convenient and labor-saving during transportation, and solves the problem that the existing fire metal ladder is relatively time-consuming and labor-intensive during transportation, thereby ensuring the rescue efficiency when the fire is dispatched.

[0014] 2. In the utility model, the rotatable design of the fixed plug rod inside the support column makes it easy to rotate the direction when dragging, and the detachable design between the fixed plug rod and the support column makes it easy to adjust according to the width of the ladder crossbar and to maintain and replace the limit card. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0016] Figure 1 is a left side schematic diagram of a trailer structure according to an embodiment of the present application;

[0017] Figure 2 yes Figure 1 A schematic diagram of the right side view of the trailer structure in the illustrated embodiment;

[0018] Figure 3 yes Figure 1 A schematic front view of the split structure of the trailer in the illustrated embodiment.

[0019] The meanings of the reference numerals in the figure are: 1. Main shaft; 2. Moving roller; 3. Support column; 4. Fixed plug rod; 5. Support bracket; 6. Limit clamping plate; 7. Fixed screw tube; 8. Fixed bolt; 9. Limit clamping slot; 10. Trailer pull rod; 11. Auxiliary handle; 12. Strengthening support rod. DETAILED DESCRIPTION

[0020] In order to make the purpose, features, and advantages of the present application more obvious and easy to understand, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the embodiments described below are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0021] Reference Figure 1 , Figure 2 and Figure 3 A metal ladder fire-fighting trailer includes a main shaft rod 1, both sides of the main shaft rod 1 are rotatably sleeved with moving rollers 2, a support column 3 is fixed to the top surface of the main shaft rod 1, and a fixed plug rod 4 is inserted inside the support column 3, and a support plate 5 is fixed to one end of the fixed plug rod 4 extending to the outside of the support column 3, and a limiting card plate 6 is fixed to the top surface of the support plate 5, and the limiting card plate 6 is set to be a "U" shape that matches the ladder cross bar, and the limiting card plate 6 is located above the moving roller 2, and the width of the limiting card plate 6 is smaller than the width of the main shaft rod 1, A fixing screw 7 is fixed through the side of the support column 3, and a thread matching the fixing bolt 8 is provided inside the fixing screw 7. The length of the fixing screw 7 is less than the length of the fixing bolt 8, and the fixing bolt 8 is sleeved on the internal thread of the fixing screw 7. A limiting groove 9 matching the fixing bolt 8 is provided on the outer surface of the lower part of the fixing rod 4. The limiting groove 9 is set to a ring shape matching the fixing bolt 8. The distance between the top surface of the fixing screw 7 and the top surface of the support column 3 is equal to the distance between the top surface of the limiting groove 9 and the bottom surface of the support plate 5.

[0022] Specifically, when the ladder needs to be transported, the crossbar of the ladder is inserted into the limiting card plate 6, and the main shaft rod 1 is pulled to drive the ladder to move. During the movement, the limiting card slot 9 and the fixed plug rod 4 are designed to cooperate with each other, so that the limiting card plate 6 and the support column 3 can rotate relative to each other, which is convenient for the pulling personnel to rotate the direction when transporting the ladder. When the limiting card plate 6 needs to be disassembled, the fixing bolt 8 is turned to move the fixing bolt 8 out of the support column 3 and the fixing screw 7, so that the fixing bolt 8 can release the limit of the fixed plug rod 4, so that the fixed plug rod 4 can be pulled out alone.

[0023] As an optimization solution, Figure 3 As shown, a trailer rod 10 is fixed to the side of the support column 3, and an auxiliary handle 11 is fixed to the end of the trailer rod 10 away from the main shaft rod 1, and the auxiliary handle 11 is perpendicular to the end of the trailer rod 10 away from the main shaft rod 1, and reinforcing struts 12 are fixed on both sides of the support column 3, and the bottom surfaces of the reinforcing struts 12 are fixed to the top surface of the main shaft rod 1, and the two reinforcing struts 12 are arranged to be inclined in opposite designs.

[0024] Specifically, when the main shaft rod 1 needs to be pulled, the auxiliary handles 11 on both sides of the trailer pull rod 10 are held, and the main shaft rod 1 can be pulled through the trailer pull rod 10, which is convenient for the operator to pull the main shaft rod 1, and the support column 3 is supported by the reinforcing support rod 12 to ensure the supporting strength of the support column 3.

[0025] It will be apparent to those skilled in the art that the present application is not limited to the details of the exemplary embodiments described above, and that the present application can be implemented in other specific forms without departing from the spirit or essential features of the present application. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the present application is defined by the appended claims rather than the above description, and it is intended that all changes within the meaning and scope of the equivalent elements of the claims be included in the present application. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0026] As described above, the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A metal ladder fire-fighting trailer, characterized by: The invention comprises a main shaft (1), both sides of which are rotatably sleeved with movable rollers (2), a support column (3) is fixed to the top surface of the main shaft (1), and a fixed plug rod (4) is inserted inside the support column (3), one end of the fixed plug rod (4) extending to the outside of the support column (3) is fixed with a support support plate (5), a limit clamping plate (6) is fixed to the top surface of the support support plate (5), a fixed screw tube (7) is fixed through the side of the support column (3), and a fixing bolt (8) is sleeved inside the fixing screw tube (7), and a limit clamping groove (9) cooperating with the fixing bolt (8) is opened on the outer surface of the lower part of the fixing plug rod (4).

2. The metal ladder fire-fighting trailer according to claim 1 is characterized in that: A trailer rod (10) is fixed to the side of the support column (3), and an auxiliary handle (11) is fixed to the end of the trailer rod (10) away from the main shaft rod (1), wherein the auxiliary handle (11) is perpendicular to the end of the trailer rod (10) away from the main shaft rod (1).

3. The metal ladder fire-fighting trailer according to claim 1 is characterized by: Reinforcement struts (12) are fixed on both sides of the support column (3), and the bottom surfaces of the reinforcement struts (12) are fixed to the top surface of the main shaft rod (1), and the two reinforcement struts (12) are arranged in an inclined shape designed to face each other.

4. The metal ladder fire-fighting trailer according to claim 1, characterized in that: The limit clamping plate (6) is configured to be in a "U" shape that cooperates with the ladder crossbar; the limit clamping plate (6) is located above the movable roller (2); and the width of the limit clamping plate (6) is smaller than the width of the main shaft rod (1).

5. The metal ladder fire-fighting trailer according to claim 1, characterized in that: The fixing screw tube (7) has a thread inside that matches the fixing bolt (8), and the length of the fixing screw tube (7) is shorter than the length of the fixing bolt (8).

6. The metal ladder fire-fighting trailer according to claim 1, characterized in that: The limiting slot (9) is arranged in a ring shape to cooperate with the fixing bolt (8), and the distance between the top surface of the fixing screw (7) and the top surface of the support column (3) is equal to the distance between the top surface of the limiting slot (9) and the bottom surface of the support plate (5).

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