Multifunctional crow bar

Abstract

The invention provides a multifunctional crow bar, and relates to the technical field of crow bars, the multifunctional crow bar comprises a door prying device, a perforating thorn, a nail puller and a connecting rod, the door prying device is arranged at the upper end of the connecting rod, the perforating thorn is arranged on one side of the door prying device, and the nail puller is arranged at the lower end of the connecting rod; the connecting rod comprises an outer sleeve and two groups of inserting rods, and fixing grooves are formed in the upper end and the lower end of the interior of the outer sleeve; one end of the device is provided with a door prying device and a perforating thorn, and the other end of the device is provided with a nail puller, so that breaking functions of tearing, prying, forking, puncturing and the like are integrated, obstacles can be quickly broken under the condition of emergency rescue, the problem that the obstacles need to be broken by using various tools in a matched manner during rescue is solved, the operation intensity is reduced, different tool parts are selected according to the rescue environment, and the rescue efficiency is improved. The device is suitable for various emergency rescue sites, improves the stability of emergency rescue, can better meet the use requirements of emergency rescue, and is simple, convenient, quick, safe and reliable to operate.

Description

Technical Field

[0001] The present invention relates to the technical field of crowbars, and in particular to a multifunctional crowbar. Background Art

[0002] A crowbar is a labor-saving lever tool with one end forged into a flat or conical shape, used to pry or move heavy objects. It can be straight or curved, usually made of metal (such as quenched and tempered 45# steel, HBR335 or HBR400, etc.) or wood, with a length generally between 300mm and 1500mm (the common length is about 1.5m), and a diameter between 20mm and 30mm. The crowbar works on the principle of leverage, that is, the resistance torque is equal to the action torque. The longer the crowbar, the longer the force arm, the smaller the required force, and therefore the more labor-saving. When using a crowbar, it is necessary to pay attention to the choice of the fulcrum, which should be firm and not easy to slide, and the crowbar should be prevented from slipping or breaking during operation; In the prior art, there are a variety of crowbars with different structures on the market, but most of them have a single function. In emergency repair and rescue operations, in addition to the crowbar, multiple tools need to be carried to complete the equipment, resulting in low work efficiency and increasing the burden on rescue personnel. Therefore, the present invention proposes a multifunctional crowbar to solve the problems existing in the prior art. Summary of the invention

[0003] In view of the above problems, the present invention proposes a multifunctional crowbar, which is applicable to various emergency rescue sites, improves the stability of the rescue, and provides more possibilities for the convenience and speed of emergency rescue.

[0004] To achieve the purpose of the present invention, the present invention is implemented by the following technical solutions: a multifunctional pry bar, comprising a door prying device, a perforating spike, a nail remover and a connecting rod, wherein the door prying device is arranged at the upper end of the connecting rod, the perforating spike is arranged at one side of the door prying device, and the nail remover is arranged at the lower end of the connecting rod; The connecting rod includes an outer sleeve and an insertion rod, and the insertion rod is provided with two groups. The upper and lower ends inside the outer sleeve are provided with fixing grooves, and the two groups of insertion rods are respectively arranged inside the fixing grooves at the upper and lower ends, and the door prying device and the nail remover are respectively connected to the outer ends of the two groups of insertion rods.

[0005] A further improvement is that one end of the outer side of the two groups of insertion rods is provided with a first external thread, the bottom of the door prying device is provided with a first internal thread groove, and the top of the nail remover is provided with a second internal thread groove, and the first internal thread groove and the second internal thread groove are both adapted to the first external thread.

[0006] A further improvement is that: a second external thread is provided on one side of the piercing piercing outside, a third internal thread groove is provided on one side of the door prying device, and the second external thread is matched with the third internal thread groove.

[0007] A further improvement is that screw holes are provided at the upper and lower ends of one side of the outer sleeve, and screw rods are threadedly installed inside the two groups of screw holes, and the screw rods extend into the interior of the outer sleeve.

[0008] A further improvement is that one side of the two groups of insertion rods is provided with a fixing screw groove, and multiple groups of fixing screw grooves are provided at equal intervals, and the inner end of the screw rod is adapted to the fixing screw groove.

[0009] A further improvement is that the door prying device is shovel-shaped, and the front end of the door prying device is a pointed end, the rear end of the door prying device is a thick end, and the first inner screw groove and the third inner screw groove are both arranged on the thick end.

[0010] A further improvement is that the perforating thorn is in the shape of a cone, and the tip of the perforating thorn is inclined upward.

[0011] A further improvement is that the nail remover is fork-shaped and a nail removing groove is provided at the middle position of the nail remover.

[0012] The beneficial effects of the present invention are: 1. The present invention has a door prying device and a perforating spike at one end and a nail remover at the other end, which integrates tearing, prying, forking, piercing and other demolition functions in one, so as to realize rapid demolition of obstacles in emergency rescue situations, solve the problem of using a variety of tools to demolish obstacles during rescue, reduce the work intensity, and select different tool parts for use according to the rescue environment. It is suitable for various emergency rescue sites, improves the stability of emergency rescue, can better meet the use needs of emergency rescue, and is simple, fast, safe and reliable to operate.

[0013] 2. The door prying tool and the insertion rod of the present invention are installed through the first internal screw groove and the first external thread, the nail remover and the insertion rod are installed through the second internal screw groove and the first external thread, and the perforating thorn and the door prying tool are installed through the second external thread and the third internal screw groove, which is convenient for disassembly and assembly, packaging and storage, simple operation, and convenient storage and transportation.

[0014] 3. The connecting rod of the present invention is composed of an outer sleeve and an insertion rod, and the length can be flexibly adjusted. The screw rod in the screw hole of the outer sleeve is inserted into the fixed screw groove at the corresponding position to fix the adjusted length, and the functions are diversified. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a front view of the present invention; Figure 2 It is a schematic diagram of the splitting of the present invention; Figure 3 A schematic diagram of an insertion rod of the present invention; Figure 4 It is a schematic diagram of the outer sleeve of the present invention; Figure 5It is a front schematic diagram of the present invention; Figure 6 It is a side schematic diagram of the present invention.

[0016] Among them: 1. door pry; 2. piercing thorn; 3. nail remover; 4. outer sleeve; 5. insertion rod; 6. first external thread; 7. second external thread; 8. screw hole; 9. screw rod; 10. fixing screw groove. DETAILED DESCRIPTION

[0017] In order to deepen the understanding of the present invention, the present invention will be further described in detail below in conjunction with examples. The examples are only used to explain the present invention and do not constitute a limitation on the protection scope of the present invention.

[0018] Embodiment 1 according to Figure 1 , 2 As shown in , 3, 4, 5, and 6, this embodiment provides a multifunctional pry bar, including a door prying device 1, a perforating spike 2, a nail remover 3, and a connecting rod, wherein the door prying device 1 is arranged at the upper end of the connecting rod, the perforating spike 2 is arranged at one side of the door prying device 1, and the nail remover 3 is arranged at the lower end of the connecting rod; The connecting rod includes an outer sleeve 4 and an insertion rod 5. The insertion rod 5 is provided with two groups. The upper and lower ends of the inner part of the outer sleeve 4 are provided with fixed grooves. The two groups of the insertion rods 5 are respectively arranged inside the fixed grooves at the upper and lower ends. The door prying device 1 and the nail remover 3 are respectively connected to the outer ends of the two groups of the insertion rods 5. It has the functions of prying doors, puncturing, and removing nails. One end is the door prying device 1 and the perforating thorn 2, and the other end is the nail remover 3. The multifunctional crowbar is purely manually operated. Different operating tools can be used according to the on-site situation to complete various rescue actions such as prying doors, puncturing, and removing nails. When not in working state, the multifunctional crowbar is stored in a special packaging box. It can be taken out when in use. The invention of this multifunctional crowbar is not only easy to operate, but also fully solves the problem of emergency rescue of troops in emergency situations.

[0019] The first external thread 6 is provided at one end of the outer side of the two groups of insertion rods 5, the first internal thread groove is provided at the bottom of the door prying device 1, and the second internal thread groove is provided at the top of the nail remover 3, and the first internal thread groove and the second internal thread groove are both matched with the first external thread 6. The second external thread 7 is provided on one side of the outer side of the perforating thorn 2, and the third internal thread groove is provided on one side of the door prying device 1, and the second external thread 7 is matched with the third internal thread groove. The door prying device 1 and the insertion rod 5 are installed through the first internal thread groove and the first external thread 6, the nail remover 3 and the insertion rod 5 are installed through the second internal thread groove and the first external thread 6, and the perforating thorn 2 and the door prying device 1 are installed through the second external thread 7 and the third internal thread groove, which is convenient for disassembly and assembly, and can be packed and stored, with simple operation and convenient storage and transportation.

[0020] The upper and lower ends of one side of the outer sleeve 4 are both provided with screw holes 8, and the interiors of the two groups of screw holes 8 are both threadedly installed with screw rods 9, and the screw rods 9 extend into the interior of the outer sleeve 4. One side of the two groups of insertion rods 5 is both provided with fixed screw grooves 10, and multiple groups of fixed screw grooves 10 are equidistantly provided, and the inner ends of the screw rods 9 are adapted to the fixed screw grooves 10. The connecting rod is composed of the outer sleeve 4 and the insertion rod 5, and the length can be adjusted flexibly. The screw rods 9 in the screw holes 8 of the outer sleeve 4 are inserted into the fixed screw grooves 10 at the corresponding positions to fix the adjusted length, and the functions are diversified.

[0021] Embodiment 2 according to Figure 1 , 2 As shown in , 3, 4, 5, and 6, this embodiment provides a multifunctional pry bar, including a door prying device 1, a perforating spike 2, a nail remover 3, and a connecting rod, wherein the door prying device 1 is arranged at the upper end of the connecting rod, the perforating spike 2 is arranged at one side of the door prying device 1, and the nail remover 3 is arranged at the lower end of the connecting rod; The connecting rod includes an outer sleeve 4 and an insertion rod 5. The insertion rod 5 is provided with two groups. The upper and lower ends of the inner part of the outer sleeve 4 are provided with fixed grooves. The two groups of the insertion rods 5 are respectively arranged inside the fixed grooves at the upper and lower ends. The door prying device 1 and the nail remover 3 are respectively connected to the outer ends of the two groups of the insertion rods 5. It has the functions of prying doors, puncturing, and removing nails. One end is the door prying device 1 and the perforating thorn 2, and the other end is the nail remover 3. The multifunctional crowbar is purely manually operated. Different operating tools can be used according to the on-site situation to complete various rescue actions such as prying doors, puncturing, and removing nails. When not in working state, the multifunctional crowbar is stored in a special packaging box. It can be taken out when in use. The invention of this multifunctional crowbar is not only easy to operate, but also fully solves the problem of emergency rescue of troops in emergency situations.

[0022] The door prying tool 1 is shovel-shaped, and the front end of the door prying tool 1 is a sharp end, and the rear end of the door prying tool 1 is a thick end, and the first inner screw groove and the third inner screw groove are both arranged on the thick end. When in use, the tip of the door prying tool 1 is inserted into the door gap. If the door gap is too small, you may need to use a hammer or other tools to gently tap the bottom of the door prying tool 1 so that the tip of the door prying tool 1 is inserted into the door gap. The force and position of the door prying tool 1 are adjusted as needed to ensure that the door gap is properly opened until the door gap is large enough to easily open the door.

[0023] The perforating thorn 2 is in the shape of a cone, and the tip of the perforating thorn 2 is tilted upward. When in use, hold the rod with both hands, point the perforating thorn 2 downward, aim at the position where puncture is required, and puncture with force.

[0024] The nail remover 3 is in the shape of a fork, and a nail removing groove is provided in the middle of the nail remover 3. When in use, align the nail removing groove of the nail remover with the nail to be removed, gently press the nail remover so that its tip bites under the nail, and pull the nail remover 3 upward with appropriate force, so that the nail moves with the nail remover 3. The nail remover 3 can also realize the function of a fork and can realize the function of tearing to a limited extent.

[0025] The multifunctional crowbar has a door prying device 1 and a perforating thorn 2 at one end and a nail remover 3 at the other end, which integrates tearing, prying, forking, piercing and other demolition functions, so as to achieve rapid demolition of obstacles in emergency rescue situations, solve the problem of using multiple tools to demolish obstacles during rescue, reduce the intensity of work, and select different tool parts for use according to the rescue environment. It is suitable for various emergency rescue sites, improves the stability of emergency rescue, can better meet the use needs of emergency rescue, and is easy to operate, fast, safe and reliable. In addition, the door prying device 1 and the insertion rod 5 of this product are installed through the first inner screw groove and the first outer screw thread 6, the nail remover 3 and the insertion rod 5 are installed through the second inner screw groove and the first outer screw thread 6, and the perforating thorn 2 and the door prying device 1 are installed through the second outer screw thread 7 and the third inner screw groove, which is convenient for disassembly and assembly, packaging and storage, simple operation, and convenient storage and transportation. At the same time, the connecting rod of this product is composed of an outer sleeve 4 and an insertion rod 5, and the length can be adjusted flexibly. The screw rod 9 in the screw hole 8 of the outer sleeve 4 is inserted into the fixed screw groove 10 at the corresponding position to fix the adjusted length, and the functions are diversified.

[0026] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A multifunctional crowbar, comprising a door prying device (1), a perforating spike (2), a nail remover (3) and a connecting rod, characterized in that: The door prying device (1) is arranged at the upper end of the connecting rod, the perforating thorn (2) is arranged at one side of the door prying device (1), and the nail remover (3) is arranged at the lower end of the connecting rod; The connecting rod comprises an outer sleeve (4) and an insertion rod (5), wherein the insertion rod (5) is provided in two groups, and the upper and lower ends of the inner part of the outer sleeve (4) are provided with fixing grooves, and the two groups of the insertion rods (5) are respectively arranged in the inner part of the fixing grooves at the upper and lower ends, and the door prying device (1) and the nail remover (3) are respectively connected to the outer ends of the two groups of the insertion rods (5).

2. A multifunctional crowbar according to claim 1, characterized in that: One end of the outer side of the two groups of insertion rods (5) is provided with a first external thread (6), the bottom of the door prying device (1) is provided with a first internal thread groove, and the top of the nail remover (3) is provided with a second internal thread groove, and the first internal thread groove and the second internal thread groove are both adapted to the first external thread (6).

3. A multifunctional crowbar according to claim 2, characterized in that: A second external thread (7) is provided on one side of the outside of the perforating thorn (2), a third internal thread groove is provided on one side of the door prying device (1), and the second external thread (7) is matched with the third internal thread groove.

4. A multifunctional crowbar according to claim 1, characterized in that: The upper and lower ends of one side of the outer sleeve (4) are both provided with screw holes (8), and screw rods (9) are threadedly installed inside the two groups of screw holes (8), and the screw rods (9) extend into the interior of the outer sleeve (4).

5. A multifunctional crowbar according to claim 4, characterized in that: One side of the two groups of insertion rods (5) is provided with a fixing screw groove (10), and a plurality of groups of fixing screw grooves (10) are provided at equal intervals, and the inner end of the screw rod (9) is matched with the fixing screw groove (10).

6. A multifunctional crowbar according to claim 3, characterized in that: The door prying tool (1) is shovel-shaped, and the front end of the door prying tool (1) is a pointed end, the rear end of the door prying tool (1) is a thick end, and the first inner screw groove and the third inner screw groove are both arranged on the thick end.

7. The multifunctional crowbar according to claim 1, characterized in that: The perforating thorn (2) is in the shape of a cone, and the tip of the perforating thorn (2) is inclined upward.

8. The multifunctional crowbar according to claim 1, characterized in that: The nail remover (3) is fork-shaped, and a nail removing groove is provided at the middle position of the nail remover (3).

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