Length-telescopic beam type lifting appliance for road rescue

Abstract

The utility model discloses a length-telescopic beam-type lifting appliance for road rescue, which comprises a hollow main beam, telescopic lifting arms are inserted into two ends of the main beam, sliding seats with inserting holes in the middle are arranged at two ends of the main beam, sliding assisting pieces are arranged at the end parts of the sliding seats, and the sliding assisting pieces are connected with the lifting arms. The sliding assisting piece comprises a bearing rod parallel to the side wall of the hoisting arm and a bearing arranged on the bearing rod in a sleeving mode, and the bearing is attached to the side wall of the hoisting arm. The sliding seats are arranged at the two ends of the main beam, and the sliding assisting pieces are arranged in the sliding seats, so that when the hoisting arms are inserted along the insertion holes in the sliding seats, the bearings on the sliding assisting pieces in the sliding seats roll along the side walls of the hoisting arms, sliding friction between the hoisting arms and the main beam is changed into rolling friction, the friction coefficient is reduced, and the hoisting efficiency is improved. Therefore, the hoisting arm can be smoothly and quickly inserted into the main beam, and the assembling efficiency of the hoisting arm and the main beam is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of rescue slings, in particular to a beam-type sling with a retractable length for road rescue. Background Art

[0002] A rescue hoist is a rescue auxiliary equipment, which is mainly used for vehicle rescue work. Traffic accidents are inevitable when vehicles are driving. In some serious accidents, vehicles may fall into water, fall into a deep pit, or run off the road and fall onto a cliff with a height difference. At this time, the vehicle cannot drive out by itself, so a lifting equipment is needed to lift the vehicle. When using the rescue hoist, high-strength rope buckles and other tools are generally used to connect the top of the hoist with the hook of the lifting equipment, and then the lifting ropes are installed on the lifting arms on both sides of the hoist, and the ropes are fixedly connected to the four wheels of the vehicle, so that the vehicle in the accident can be lifted. The hoist can The hoisting process is smoother. Due to the different sizes of rescue vehicles, the hoisting arms at both ends of the rescue hoist are set to a retractable structure, so that they can be adjusted according to the size of the vehicle. At present, the hoisting arms of the hoist are plugged and fixed to the main beam, and when the hoisting arms are plugged with the main beam, the outer wall of the hoisting arms needs to be tightly fitted with the inner wall of the insertion hole in the main beam, which makes it difficult for the hoisting arms to be quickly inserted along the insertion holes on the main beam when the hoisting arms are plugged with the main beam. The staff needs to constantly adjust the alignment, and even need to swing back and forth during the plug-in process to accurately insert the hoisting arms into the main beam, which brings great inconvenience to the assembly work. Utility Model Content

[0003] The purpose of the utility model is to avoid the deficiencies of the prior art and provide a beam-type sling for road rescue with a retractable length, thereby effectively solving the deficiencies in the prior art.

[0004] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a beam-type lifting device for road rescue with a retractable length, comprising a hollow main beam, retractable lifting arms are inserted at both ends of the main beam, sliding seats with a plug hole in the middle are arranged at both ends of the main beam, and sliding aids are arranged at the ends of the sliding seats;

[0005] The sliding aid comprises a bearing rod arranged parallel to the side wall of the hoisting arm and a bearing sleeved on the bearing rod, and the bearing is arranged in close contact with the side wall of the hoisting arm.

[0006] Furthermore, the sliding aids are provided in four groups, and the four groups of sliding aids are evenly distributed along the circumferential direction at the end of the slide seat.

[0007] Furthermore, a first receiving groove for receiving the bearing rod and a second receiving groove for receiving the bearing are provided at the end of the slide seat, the two receiving grooves are connected to each other, and the bearing passes through the second receiving groove and extends to the inner side of the slide seat.

[0008] Furthermore, the aperture of the socket on the slide is larger than the aperture of the plug-in interface on the main beam. When the sliding aid is installed on the slide, the end of the bearing extending into the socket of the slide is just flush with the edge of the plug-in interface on the main beam. That is, when the lifting arm is inserted into the slide, the outer wall of the lifting arm contacts the bearing and the outer wall of the lifting arm does not contact the inner wall of the socket of the slide. When the lifting arm is inserted into the main beam, the outer wall of the lifting arm is fitted with the inner wall of the plug-in interface in the main beam.

[0009] Furthermore, a cover plate is provided at the end of the slide seat, a through hole is provided in the middle of the cover plate for facilitating the passage of the lifting arm, and avoidance gaps are provided on the cover plate at positions corresponding to the bearings, and a limiting edge is provided in the middle of the avoidance gaps.

[0010] Furthermore, fastening bolts are provided at four end corners of the cover plate, and the cover plate is fixedly connected to the end of the slide seat through the fastening bolts.

[0011] Furthermore, a triangular hanging plate is provided on the top of the main beam, and a hanging hole is provided in the middle of the hanging plate.

[0012] Furthermore, a plurality of first positioning holes are evenly distributed along the transverse direction on both sides of the main beam, and a second positioning hole is provided at one end of the lifting arm inserted into the main beam. The lifting arm passes through the first positioning hole and the second positioning hole through a pin shaft and is fixedly connected to the main beam.

[0013] Furthermore, a hanging plate is provided below the end of the hanging arm located outside the main beam, and a plurality of hanging holes are evenly distributed along the horizontal direction on the hanging plate.

[0014] The above technical scheme of the utility model has the following beneficial effects: the utility model arranges sliding seats at both ends of the main beam and arranges sliding aids in the sliding seats, so that when the lifting arm is inserted along the insertion hole on the sliding seat, the bearing on the sliding aid in the sliding seat will roll along the side wall of the lifting arm, thereby changing the sliding friction between the lifting arm and the main beam to rolling friction, thereby reducing the friction coefficient, so that the lifting arm can be smoothly and quickly inserted into the main beam, greatly improving the assembly efficiency of the lifting arm and the main beam. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the main plan structure of an embodiment of the utility model;

[0016] Figure 2 This is a schematic diagram of the explosion structure at the slide seat of the utility model embodiment;

[0017] Figure 3 It is a schematic diagram of the cross-sectional structure of the slide seat of an embodiment of the utility model. DETAILED DESCRIPTION

[0018] In order to more clearly understand the above-mentioned purposes, features and advantages of the utility model, the utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0019] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.

[0020] like Figure 1-3 As shown, the embodiment of the present invention is a beam-type lifting device for road rescue with a retractable length, comprising a hollow main beam 1, with retractable lifting arms 2 inserted at both ends of the main beam 1, a slide seat 3 with a plug hole in the middle is provided at both ends of the main beam 1, and a sliding aid 4 is provided at the end of the slide seat 3;

[0021] The sliding aid 4 includes a bearing rod 4 a arranged parallel to the side wall of the hanging arm 2 and a bearing 4 b sleeved on the bearing rod 4 a . The bearing 4 b is arranged in close contact with the side wall of the hanging arm 2 .

[0022] Four groups of sliding aids 4 are provided, and the four groups of sliding aids 4 are evenly distributed along the circumferential direction at the end of the slide seat 3 .

[0023] The end of the slide seat 3 is provided with a first receiving groove 3a for receiving the bearing rod 4a and a second receiving groove 3b for receiving the bearing 4b. The two receiving grooves are connected to each other. The bearing 4b passes through the second receiving groove 3b and extends to the inner side of the slide seat 3.

[0024] The aperture of the insertion hole on the slide 3 is larger than the aperture of the insertion interface on the main beam 1. After the sliding aid 4 is installed on the slide 3, the end of the bearing 4b extending into the insertion hole of the slide 3 is just flush with the edge of the insertion interface on the main beam 1, that is, when the lifting arm 2 is inserted into the slide 3, the outer wall of the lifting arm 2 contacts with the bearing 4b and the outer wall of the lifting arm 2 does not contact with the inner wall of the insertion hole on the slide 3. When the lifting arm 2 is inserted into the main beam 1, the outer wall of the lifting arm 2 is fitted with the inner wall of the insertion interface in the main beam 1.

[0025] A cover plate 5 is also provided at the end of the slide seat 3, and a through hole is provided in the middle of the cover plate 5 for the lifting arm 2 to pass through. Avoidance notches 5a are also provided on the cover plate 5 at the positions corresponding to each bearing 4b, and a limiting edge 5b is also provided in the middle of the avoidance notch 5a. The bearing 4b extends out at the avoidance notch 5a, thereby preventing the cover plate 5 from affecting the rotation of the bearing 4b, and the limiting edge 5b can be pressed on the middle of the bearing rod 4a, and the cover plate 5 is also pressed on both ends of the bearing rod 4a, so that the bearing rod 4a can be limited in the first accommodating groove 3a.

[0026] Fastening bolts 6 are provided at four end corners of the cover plate 5 , and the cover plate 5 is fixedly connected to the end of the slide seat 3 via the fastening bolts 6 .

[0027] A triangular hanging plate 7 is provided on the top of the main beam 1, a hanging hole 7a is provided in the middle of the hanging plate 7, and the hanging plate 7 is connected to a hook on the lifting equipment.

[0028] A plurality of first positioning holes 1a are evenly distributed along the transverse direction on both sides of the main beam 1, and a second positioning hole is provided at the end of the lifting arm 2 inserted into the main beam 1. The lifting arm 2 passes through the first positioning hole 1a and the second positioning hole through a pin shaft 8 and is fixedly connected to the main beam 1.

[0029] The hanging arm 2 is provided with a hanging plate 9 below one end thereof outside the main beam 1 , and a plurality of hanging holes 9 a are evenly distributed in the transverse direction on the hanging plate 9 .

[0030] When assembling the utility model, firstly, the bearing 4b is sleeved on the bearing rod 4a to form the slide-assisting member 4, and then the slide-assisting member 4 is placed in the receiving groove on the slide seat 3, and then the cover plate 5 is covered, and the cover plate 5 is fixed to the end of the slide seat 3 by using the fastening bolts 6, and then the hanging arm 2 is inserted along the insertion hole on the slide seat 3. During the insertion process, the side wall of the hanging arm 2 contacts the bearing 4b in the slide seat 3, so that during the insertion process, the bearing 4b will rotate along the side wall of the hanging arm 2, thereby improving the smoothness of the insertion of the hanging arm 2. When the hanging arm 2 is inserted into the interior of the main beam 1 along the insertion hole on the main beam 1, the outer wall of the hanging arm 2 is in contact with the main beam 1. The inner walls of the lifting arm 2 are fitted together, and the fixed position of the lifting arm 2 is selected according to the size of the vehicle. The second positioning hole on the lifting arm 2 is overlapped with the corresponding first positioning hole 1a on the main beam 1, and then the pin 8 is used to penetrate the two positioning holes, so that the lifting beam 2 can be fixedly installed in the main beam 1, and the assembly of the sling is completed. When it is needed, use a metal hook or rope to connect the lifting plate 7 with the hook on the lifting equipment, and then install the lifting rope in the hanging holes 9a of the hanging plates 9 on the lifting arms 2 on both sides, and then fix the other end of the rope to the drive shaft or other position of the vehicle. In this way, the vehicle can be stably lifted.

[0031] The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

Claims

1. A beam-type sling with a retractable length for road rescue, characterized in that: It comprises a hollow main beam, with retractable lifting arms inserted at both ends of the main beam, a sliding seat with a plug hole in the middle is arranged at both ends of the main beam, and a sliding aid is arranged at the end of the sliding seat; The sliding aid comprises a bearing rod arranged parallel to the side wall of the hoisting arm and a bearing sleeved on the bearing rod, and the bearing is arranged in close contact with the side wall of the hoisting arm.

2. The beam-type sling with retractable length for road rescue according to claim 1, characterized in that: The sliding aid members are provided in four groups, and the four groups of sliding aid members are evenly distributed at the ends of the sliding seat along the circumferential direction.

3. The beam-type sling with retractable length for road rescue according to claim 2, characterized in that: The end of the slide seat is provided with a first receiving groove for receiving the bearing rod and a second receiving groove for receiving the bearing, the two receiving grooves are connected to each other, and the bearing passes through the second receiving groove and extends to the inner side of the slide seat.

4. The beam-type sling with telescopic length for road rescue according to claim 3, characterized in that: A cover plate is also provided at the end of the slide seat, a through hole is provided in the middle of the cover plate for the lifting arm to pass through, and avoidance gaps are also provided on the cover plate at positions corresponding to the bearings, and a limiting edge is also provided in the middle of the avoidance gaps.

5. The beam-type sling with telescopic length for road rescue according to claim 4, characterized in that: Fastening bolts are arranged at the four end corners of the cover plate, and the cover plate is fixedly connected to the end of the slide seat through the fastening bolts.

6. The beam-type sling with retractable length for road rescue according to claim 1, characterized in that: A triangular hanging plate is arranged on the top of the main beam, and a hanging hole is arranged in the middle of the hanging plate.

7. The beam-type sling with telescopic length for road rescue according to claim 1, characterized in that: A plurality of first positioning holes are evenly distributed along the transverse direction on both sides of the main beam, and a second positioning hole is provided at one end of the lifting arm inserted into the main beam. The lifting arm passes through the first positioning hole and the second positioning hole through a pin shaft and is fixedly connected to the main beam.

8. The beam-type sling with retractable length for road rescue according to claim 1, characterized in that: A hanging plate is arranged below one end of the hanging arm outside the main beam, and a plurality of hanging holes are evenly arranged along the upper side of the hanging plate.

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