Multifunctional crow bar

Abstract

The utility model provides a multifunctional crow bar, which relates to the technical field of crow bars, and 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; the door prying device and the perforating thorn are arranged at one end, the nail puller is arranged at the other end, the breaking functions of tearing, prying, forking, puncturing and the like are integrated, obstacles can be quickly broken under the emergency rescue condition, the problem that the obstacles need to be broken by using multiple tools in a matched mode in the rescue process is solved, the working intensity is reduced, and the working efficiency is improved. Different tool parts are selected according to the rescue environment, and 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] This utility model relates to the field of pry bar technology, and in particular to a multifunctional pry bar. Background Technology

[0002] A pry bar is a 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, and is usually made of metal (such as tempered 45# steel, HBR335, or HBR400) or wood. Its length is generally between 300mm and 1500mm (common length is around 1.5m), and its diameter is between 20mm and 30mm. A pry bar works on the principle of leverage, where the resisting torque equals the acting torque. The longer the pry bar, the longer the lever arm, and the less force is required, thus saving effort. When using a pry bar, it is important to ensure that the fulcrum is sturdy and not easily slipped, and to avoid slipping or breaking the pry bar during operation.

[0003] In the existing technology, there are various crowbars with different structures on the market, but most of them have only one function. In emergency repair and rescue operations, in addition to the crowbar, multiple tools need to be carried to complete the equipment, which leads to low work efficiency and increases the burden on rescue personnel. Therefore, this utility model proposes a multi-functional crowbar to solve the problems existing in the prior art. Utility Model Content

[0004] To address the aforementioned problems, this utility model proposes a multi-functional crowbar that can be applied to various emergency rescue sites, improving the stability of rescue operations and providing more possibilities for convenient and rapid emergency rescue.

[0005] To achieve the purpose of this utility model, the utility model is implemented through the following technical solution: a multi-functional pry bar, including a door pryer, a piercing spike, a nail remover and a connecting rod, wherein the door pryer is located at the upper end of the connecting rod, the piercing spike is located on one side of the door pryer, and the nail remover is located at the lower end of the connecting rod;

[0006] The connecting rod includes an outer tube and an insertion rod. There are two sets of insertion rods. The upper and lower ends of the inner side of the outer tube are provided with fixing grooves. The two sets of insertion rods are respectively located inside the fixing grooves at the upper and lower ends. The pry tool and the nail puller are respectively connected to the outer ends of the two sets of insertion rods.

[0007] A further improvement is that: one end of the outer side of each of the two sets of insertion rods is provided with a first external thread, the bottom of the pryer is provided with a first internal thread groove, and the top of the nail puller 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.

[0008] A further improvement is that a second external thread is provided on one side of the piercing burr, and a third internal thread groove is provided on one side of the pryer, with the second external thread and the third internal thread groove being compatible.

[0009] A further improvement is that: both the upper and lower ends of one side of the outer sleeve are provided with screw holes, and both sets of screw holes are threaded with screw rods, which extend into the interior of the outer sleeve.

[0010] A further improvement is that: one side of each of the two sets of insertion rods is provided with a fixing screw groove, and multiple sets of fixing screw grooves are provided at equal intervals, and the inner end of the screw rod is adapted to the fixing screw groove.

[0011] A further improvement is that the door pryer is shovel-shaped, with a pointed front end and a thicker rear end, and both the first and third internal threaded grooves are located on the thicker end.

[0012] A further improvement is that the perforating puncture is cone-shaped, and the tip of the perforating puncture is tilted upward.

[0013] A further improvement is that the nail puller is fork-shaped, and a nail puller groove is provided in the middle position of the nail puller.

[0014] The beneficial effects of this utility model are as follows:

[0015] 1. This utility model has a door pryer and a piercing spike at one end and a nail remover at the other end, integrating tearing, prying, forking, and piercing functions into one device. It enables rapid demolition of obstacles in emergency rescue situations, solving the problem of having to use multiple tools to demolish obstacles during rescue operations, reducing the intensity of work, and allowing different tool parts to be selected according to the rescue environment. It is suitable for various emergency rescue sites, improves the stability of emergency rescue, and can better meet the needs of emergency rescue operations. It is simple, quick, safe and reliable to operate.

[0016] 2. The door pryer and the insertion rod of this utility model are installed through the first internal thread groove and the first external thread, the nail remover and the insertion rod are installed through the second internal thread groove and the first external thread, and the piercing puncture and the door pryer are installed through the second external thread and the third internal thread groove. This makes it easy to disassemble and assemble, pack and store, operate simply, and facilitate storage and transportation.

[0017] 3. The connecting rod of this utility model consists of an outer sleeve and an insertion rod, which can be adjusted in length. The adjusted length can be fixed by inserting the screw rod into the corresponding fixing screw groove in the screw hole of the outer sleeve. It has multiple functions. Attached Figure Description

[0018] Figure 1 This is the front view of the present invention;

[0019] Figure 2This is a schematic diagram showing the disassembled parts of this utility model;

[0020] Figure 3 This is a schematic diagram of the insertion rod of this utility model;

[0021] Figure 4 This is a schematic diagram of the outer sleeve of this utility model;

[0022] Figure 5 This is a front view of the present invention;

[0023] Figure 6 This is a side view of the present invention.

[0024] The components include: 1. door pryer; 2. piercing tool; 3. nail puller; 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 Implementation

[0025] To deepen the understanding of this utility model, the following detailed description will be provided in conjunction with embodiments. These embodiments are only used to explain this utility model and do not constitute a limitation on the scope of protection of this utility model.

[0026] Example 1

[0027] according to Figure 1 , 2 As shown in Figures 3, 4, 5, and 6, this embodiment proposes a multi-functional pry bar, including a door pryer 1, a piercing spike 2, a nail remover 3, and a connecting rod. The door pryer 1 is located at the upper end of the connecting rod, the piercing spike 2 is located on one side of the door pryer 1, and the nail remover 3 is located at the lower end of the connecting rod.

[0028] The connecting rod includes an outer sleeve 4 and an insertion rod 5. Two sets of insertion rods 5 are provided. The upper and lower ends of the outer sleeve 4 are each provided with a fixing groove. The two sets of insertion rods 5 are respectively located inside the fixing grooves at the upper and lower ends. The door pry tool 1 and nail remover 3 are respectively connected to the outer ends of the two sets of insertion rods 5. It has functions such as prying doors, piercing, and removing nails. One end is the door pry tool 1 and the piercing tool 2, and the other end is the nail remover 3. The multi-functional pry bar is purely manually operated, allowing the use of different tools to complete various rescue actions such as prying doors, piercing, and removing nails depending on the situation. When not in use, the multi-functional pry bar can be stored in a special packaging box. It can be taken out when needed. This invention of a multi-functional pry bar is not only easy to operate but also effectively solves the problem of emergency rescue for the military.

[0029] Both sets of insertion rods 5 have a first external thread 6 on one end of their outer side. The bottom of the pryer 1 has a first internal thread groove, and the top of the nail puller 3 has a second internal thread groove. Both the first and second internal thread grooves are adapted to the first external thread 6. The outer side of the piercing puncture 2 has a second external thread 7, and the side of the pryer 1 has a third internal thread groove. The second external thread 7 is adapted to the third internal thread groove. The pryer 1 and the insertion rods 5 are connected via the first internal thread groove and the first external thread 6; the nail puller 3 and the insertion rods 5 are connected via the second internal thread groove and the first external thread 6; and the piercing puncture 2 and the pryer 1 are connected via the second external thread 7 and the third internal thread groove. This facilitates disassembly and assembly, allows for easy packing and storage, and is simple to operate and convenient for storage and transportation.

[0030] The outer sleeve 4 has screw holes 8 at both the top and bottom ends on one side, and screw rods 9 are threaded into the interior of both sets of screw holes 8, extending into the interior of the outer sleeve 4. Each of the two sets of insertion rods 5 has a fixing screw groove 10 on one side, and multiple sets of fixing screw grooves 10 are equidistantly arranged. The inner end of the screw rod 9 is adapted to the fixing screw groove 10. The connecting rod, composed of the outer sleeve 4 and the insertion rods 5, allows for adjustable length. The adjusted length is fixed by inserting the screw rod 9 into the corresponding fixing screw groove 10 within the screw hole 8 of the outer sleeve 4, providing versatile functionality.

[0031] Example 2

[0032] according to Figure 1 , 2 As shown in Figures 3, 4, 5, and 6, this embodiment proposes a multi-functional pry bar, including a door pryer 1, a piercing spike 2, a nail remover 3, and a connecting rod. The door pryer 1 is located at the upper end of the connecting rod, the piercing spike 2 is located on one side of the door pryer 1, and the nail remover 3 is located at the lower end of the connecting rod.

[0033] The connecting rod includes an outer sleeve 4 and an insertion rod 5. Two sets of insertion rods 5 are provided. The upper and lower ends of the outer sleeve 4 are each provided with a fixing groove. The two sets of insertion rods 5 are respectively located inside the fixing grooves at the upper and lower ends. The door pry tool 1 and nail remover 3 are respectively connected to the outer ends of the two sets of insertion rods 5. It has functions such as prying doors, piercing, and removing nails. One end is the door pry tool 1 and the piercing tool 2, and the other end is the nail remover 3. The multi-functional pry bar is purely manually operated, allowing the use of different tools to complete various rescue actions such as prying doors, piercing, and removing nails depending on the situation. When not in use, the multi-functional pry bar can be stored in a special packaging box. It can be taken out when needed. This invention of a multi-functional pry bar is not only easy to operate but also effectively solves the problem of emergency rescue for the military.

[0034] The door pry tool 1 is shovel-shaped, with a pointed front end and a thicker rear end. The first and third internal threaded grooves are both located on the thicker end. In use, the pointed end of the door pry tool 1 is inserted into the door gap. If the gap is too small, it may be necessary to gently tap the bottom of the door pry tool 1 with a hammer or similar tool to allow the pointed end to penetrate the gap. The force and position of the door pry tool 1 are adjusted as needed to ensure the gap is properly widened until it is large enough to easily open the door.

[0035] The perforating puncture 2 is cone-shaped, with its tip tilted upwards. In use, hold the handle with both hands, pointing the perforating puncture 2 downwards, align it with the desired puncture location, and forcefully puncture.

[0036] The nail puller 3 is fork-shaped, and has a nail-pulling groove in the middle. In use, align the nail-pulling groove with the nail to be pulled out, gently press the nail puller so that its tip bites under the nail, and pull the nail puller 3 upwards with appropriate force, causing the nail to move along with the nail puller 3. The nail puller 3 can also function as a fork and can also perform a limited tearing function.

[0037] This multi-functional pry bar features a door pryer 1 and a piercing spike 2 on one end, and a nail remover 3 on the other. It integrates tearing, prying, forking, and piercing functions into one unit, enabling rapid obstacle removal in emergency rescue situations. This solves the problem of needing to use multiple tools to remove obstacles during rescue operations, reducing workload. Different tool parts can be selected according to the rescue environment, making it suitable for various emergency rescue sites, improving the stability of rescue operations, and better meeting the needs of emergency rescue. It is simple, quick, safe, and reliable to operate. Furthermore, the door pryer 1 and the insertion rod 5 are connected via a first internal thread groove and a first external thread 6; the nail remover 3 and the insertion rod 5 are connected via a second internal thread groove and a first external thread 6; and the piercing spike 2 and the door pryer 1 are connected via a second external thread 7 and a third internal thread groove. This facilitates easy assembly and disassembly, packaging, and storage, making it simple to operate and convenient for transportation. Meanwhile, the connecting rod of this product is composed of an outer sleeve 4 and an insertion rod 5, which can be adjusted in length. The screw rod 9 in the screw hole 8 of the outer sleeve 4 can be inserted into the corresponding fixing screw groove 10 to fix the adjusted length, making it versatile in function.

[0038] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A multi-functional pry bar, comprising a door pryer (1), a piercing dart (2), a nail puller (3), and a connecting rod, characterized in that: The door pryer (1) is located at the upper end of the connecting rod, the piercing pierce (2) is located on one side of the door pryer (1), and the nail remover (3) is located at the lower end of the connecting rod. The connecting rod includes an outer tube (4) and an insertion rod (5). The insertion rod (5) is provided in two sets. The upper and lower ends of the outer tube (4) are provided with fixing grooves. The two sets of insertion rods (5) are respectively located inside the fixing grooves at the upper and lower ends. The door pryer (1) and nail puller (3) are respectively connected to the outer ends of the two sets of insertion rods (5).

2. The multi-functional pry bar according to claim 1, characterized in that: Both sets of insertion rods (5) have a first external thread (6) on one side, the bottom of the door pryer (1) has a first internal thread groove, and the top of the nail puller (3) has a second internal thread groove. The first internal thread groove and the second internal thread groove are both adapted to the first external thread (6).

3. A multi-functional pry bar according to claim 2, characterized in that: The piercing puncture (2) has a second external thread (7) on one side, and the door pryer (1) has a third internal thread groove on one side. The second external thread (7) is adapted to the third internal thread groove.

4. A multi-functional pry bar according to claim 1, characterized in that: The upper and lower ends of one side of the outer tube (4) are provided with screw holes (8), and screw rods (9) are threaded inside both sets of screw holes (8), with the screw rods (9) extending into the interior of the outer tube (4).

5. A multi-functional pry bar according to claim 4, characterized in that: Both sets of the insertion rods (5) are provided with a fixing screw groove (10) on one side, and multiple sets of fixing screw grooves (10) are provided at equal intervals. The inner end of the screw rod (9) is adapted to the fixing screw groove (10).

6. A multi-functional pry bar according to claim 3, characterized in that: The door pryer (1) is shovel-shaped, with a pointed front end and a thicker rear end. The first and third internal thread grooves are both located on the thicker end.

7. A multi-functional pry bar according to claim 1, characterized in that: The perforating puncture (2) is cone-shaped, and the tip of the perforating puncture (2) is tilted upward.

8. A multi-functional pry bar according to claim 1, characterized in that: The nail puller (3) is fork-shaped, and a nail puller groove is provided in the middle position of the nail puller (3).

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