Multipurpose fire axe

Abstract

The utility model discloses a multipurpose fire-fighting hand axe which comprises a handle and an axe body connected to the handle, the front portion of the axe body is provided with a forcible entry cutting edge, and the axe body is provided with a hexagonal and open fire hydrant cover opening opening on the lower side of the forcible entry cutting edge. The axe body is provided with an open cable cutting opening with a gradually narrowed opening on the upper side of the forcible entry blade, the cable cutting opening is V-shaped, the edges of the two sides of the cable cutting opening are provided with cutting blades which gradually incline downwards from back to front, the rear part of the axe body is provided with a forcible entry corner part which extends backwards, the rear end of the forcible entry corner part is provided with a sharp forcible entry sharp blade, and the forcible entry sharp blade is provided with an opening. The rear portion of the axe body is further provided with a forcible entry corner portion, the rear portion of the axe body is further provided with a supporting corner portion located below the forcible entry corner portion, a hexagon nut disassembling notch is defined between the forcible entry corner portion and the supporting corner portion, and the multipurpose fire axe aims at overcoming the defects in the prior art and is diversified in function, convenient and fast to use and high in safety.

Description

Technical Field

[0001] The utility model particularly relates to a multi-purpose fire-fighting hand axe. Background Art

[0002] With the acceleration of urbanization and the increasing complexity of building structures, rescue efforts in emergency situations like fires are becoming increasingly challenging. Firefighters not only need to quickly break down obstacles to enter a fire scene or rescue trapped individuals, but they also often have to deal with a variety of complex on-site situations, such as opening fire hydrants, cutting wires and cables, and removing fixtures. This often requires the use of a fire axe, which is primarily used to clear fires, flammable materials, and obstructions. It can be used as a tool to cut off the spread of fire, or to split burnt and deformed doors and windows to rescue trapped individuals. Its shape resembles an axe, hence the name. You can refer to the patent scheme with patent number CN202420016611.4, which is named a multifunctional axe for fire fighting and rescue operations. However, traditional fire axes still have many defects that need to be improved: 1. Traditional fire axes generally have an axe blade for dismantling objects, and the axe head is provided with a hexagonal and open notch, that is, an opening notch for opening and closing fire hydrants. Traditional fire axes generally have an axe blade on the front and an opening notch on the back, which results in a single layout of the axe head and cannot meet the diverse needs of modern emergency rescue; 2. The design of some functional areas is not reasonable enough, which increases the difficulty of operation, especially in emergency situations, which may lead to reduced efficiency or even misoperation; 3. Some tools lack sufficient safety considerations in design, such as unreasonable blade design, which can easily cause injury to the user; or fail to provide necessary protective measures when performing certain specific tasks (such as cutting live cables).

[0003] The present invention is based on the above-mentioned shortcomings and produces. Utility Model Content

[0004] The utility model aims to overcome the deficiencies of the prior art and provide a multi-purpose fire-fighting hand axe which has diverse functions, is easy to use and has high safety.

[0005] The utility model is realized through the following technical solutions:

[0006] The utility model provides a multi-purpose fire-fighting hand axe, comprising a handle and an axe body connected thereto, wherein the front portion of the axe body is provided with a demolition blade, the axe body is provided with a hexagonal and open fire hydrant cover opening on the lower side of the demolition blade, the axe body is provided with an open and gradually narrowed cable cutting opening on the upper side of the demolition blade, the cable cutting opening is V-shaped and has cutting blades on both sides that are gradually inclined downward from the back to the front, the rear portion of the axe body is provided with a demolition corner portion extending backward, the rear end of the demolition corner portion is provided with a sharp demolition tip, the rear portion of the axe body is further provided with a supporting corner portion located below the demolition corner portion, and a hexagonal nut disassembly recess is formed between the demolition corner portion and the supporting corner portion.

[0007] As described above, the multi-purpose fire-fighting hand axe has a cover seat detachably connected to the bottom of the handle, a dagger knife is provided on the cover seat, and a receiving cavity with a lower opening is provided in the handle. When the cover seat is connected to the handle, the dagger knife extends into the receiving cavity.

[0008] The multi-purpose fire-fighting hand axe as described above has a flat dagger blade, one side edge of the dagger blade is provided with a serrated serrated blade, and the other side edge of the dagger blade is provided with a flat blade edge and a measuring ruler section with a ruler scale.

[0009] As described above, the multi-purpose fire axe has a downwardly extending demolition shear portion and a pliers support portion on the cover seat. The demolition shear portion is arc-shaped and has an arc-shaped pliers blade on a side close to the pliers support portion.

[0010] As described above, the multi-purpose fire-fighting hand axe, the shears support part has an auxiliary shearing platform and a support platform, the auxiliary shearing platform and the demolition shears are located in the same shearing plane, the support platform is connected to the auxiliary shearing platform, and the support platform protrudes outward in a direction perpendicular to the shearing plane.

[0011] As described above, the multi-purpose fire-fighting hand axe has an external threaded portion on the top of the cover seat, and a matching internal threaded portion is provided at the lower end of the accommodating cavity in the handle, so that the cover seat can be detachably connected to the handle.

[0012] The multi-purpose fire-fighting hand axe as described above has a tubular handle, a square tube portion with a rectangular cross-section on the top of the handle, an insertion portion for inserting into the inner side of the square tube portion on the bottom of the axe body, a clamping portion on one side of the insertion portion of the axe body, a clamping groove for clamping the wall of the square tube portion is formed between the clamping portion and the insertion portion, and the square tube portion is connected and fixed to the axe body by welding.

[0013] As described above, the multi-purpose fire-fighting hand axe, the angle α between the cutting blades on both side edges of the cable cutting opening is ≤25°, and the angle β between the angle bisector of the angle α and the horizontal line is ≤45°.

[0014] As described above, the multi-purpose fire-fighting hand axe, the demolition blade extends from top to bottom, the fire hydrant cover opening has a side line adjacent to the demolition blade, and the angle γ between the side line and the tangent of the demolition blade is ≤60°.

[0015] The multi-purpose fire-fighting hand axe as described above has a switch wrench portion for opening and closing a fire hydrant further provided in the middle of the axe body.

[0016] Compared with the prior art, the utility model has the following advantages:

[0017] 1. The multi-purpose fire-fighting hand axe of the present invention adopts an updated functional area layout, so that the cable cutting opening and the fire hydrant cover opening are respectively arranged on the upper and lower sides of the front half of the axe body, and functional areas such as the demolition blade and the hexagonal nut removal recess can be arranged on the rear side of the axe body. In addition, more functional areas can be arranged on the axe body, making the functional area layout on the axe body more reasonable and the structure more compact, thereby making the functions of the hand axe more comprehensive and diverse;

[0018] 2. The cable cutting opening is gradually tilted downward from the back to the front, and the opening of the cable cutting opening is facing the upper back. In this way, during use, you only need to insert the cable into the cable cutting opening from the upper back to limit the tilting direction of the cable cutting opening. When the user cuts the cable, the direction of movement of the fire axe is toward the rear and the direction of movement of the cable is toward the front, thereby avoiding the risk of cutting people during the cable cutting process and making the operation more convenient.

[0019] 3. The demolition blade is a shape that gradually becomes sharper from the front to the back. When using the fire axe to break through some hard obstacles such as leather, the obstacles can be pried and cut open by the pliers blade, and further demolition can be carried out in combination with the demolition blade, thereby improving the adaptability and application scenarios of the fire axe.

[0020] 4. The bottom of the handle is detachably connected to a cover seat. One side of the dagger is equipped with a serrated blade, and the other side of the dagger is equipped with a flat blade and a measuring scale section with a ruler scale. The measuring scale section is a straight section with millimeter and centimeter scales, providing the product with richer functions. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a three-dimensional schematic diagram of the multi-purpose fire-fighting hand axe of the utility model;

[0022] Figure 2 It is a partial cross-sectional schematic diagram of the multi-purpose fire-fighting hand axe of the utility model;

[0023] Figure 3 This is a front elevational view of the multi-purpose fire-fighting hand axe of the present invention;

[0024] Figure 4 is the exploded schematic view of the multipurpose fire axe. DETAILED DESCRIPTION

[0025] The utility model will be further described below in combination with the drawings:

[0026] The directions described in the utility model specification, such as "upper", "lower", "left", "right", "front", "back" and the like, are all based on the directions of the drawings as the reference, and for the purpose of facilitating the description of the relationship between various components, not indicating the unique or absolute positional relationship between various components, only for realizing one kind of embodiment of the utility model, and is not a kind of limitation to its embodiment.

[0027] The utility model provides a kind of multipurpose fire axe, as shown in Figures 1 to 4 The utility model has the advantages that the multipurpose fire axe is provided with the fire hydrant cover opening 22 in the lower side of the breaking and tearing blade 21 of the axe body 2, and the fire hydrant cover opening 22 is hexagonal and open, so that the fire hydrant cover opening 22 can be used to open the fire hydrant cover, and the fire hydrant cover opening 22 can be used to break and tear, and the multipurpose fire axe can be used to break and tear and open the fire hydrant cover, so that the utility of the multipurpose fire axe is improved. Figure 2As shown, the axe body 2 is provided with an open and gradually narrowed cable cutting opening 23 on the upper side of the demolition blade 21. The cable cutting opening 23 is V-shaped and has cutting blades 231 on both sides that are gradually inclined downward from the back to the front. That is, the cable cutting opening 23 is gradually inclined downward from the back to the front, and the opening of the cable cutting opening 23 is facing upward and rearward. The rear part of the axe body 2 has a demolition corner 24 extending backward, and the rear end of the demolition corner 24 has a sharp demolition blade 241. The rear part of the axe body 2 is also provided with a A supporting angle portion 25 is located below the demolition angle portion 24. A hexagonal nut removal notch 26 is formed between the demolition angle portion 24 and the supporting angle portion 25. Through this structure, the cable cutting opening 23 and the fire hydrant cover opening 22 are respectively arranged on the upper and lower sides of the front half of the axe body 2, that is, both located behind the demolition blade 21. This makes the axe body 2 more compact. This allows the demolition blade 241 and the hexagonal nut removal notch 26 to be arranged behind the axe body 2, thereby making the hand axe more comprehensive and versatile. The cable cutting opening 23 is gradually inclined downward from back to front, and the opening of the cable cutting opening 23 faces upward and rearward. During use, the cable can be inserted into the cable cutting opening 23 from the upper rear and pulled forward, or the axe body 2 can be cut backward to cut the cable. This prevents the cable from moving in a direction opposite to the direction of the demolition blade 21, thereby avoiding the risk of injury during cable cutting and making operation more convenient. Among them, the demolition sharp blade 241 is a shape that gradually becomes sharper from the front to the back. When using the fire-fighting hand axe to break through some hard obstacles such as leather, the demolition sharp blade 241 is first used to break an opening in the obstacle, and then the demolition blade 21 is used for further demolition to improve work efficiency; among them, the fire hydrant cover opening 22 is a shape that matches the hexagonal cover part of the fire hydrant cover, and is an essential functional area of ​​the fire-fighting hand axe.

[0028] As a preferred embodiment, Figure 2 As shown, the angle α between the cutting blades 231 on both side edges of the cable cutting opening 23 is ≤25°, and the angle α should also be greater than 5°. This is to facilitate the user's operation and to have better movement space and easier force application when cutting the cable. The angle β between the angle bisector I of the angle α and the horizontal line K is ≤45°. This is to limit the tilt direction of the cable cutting opening 23, so that when the user cuts the cable, the direction of movement of the fire axe is toward the rear and the direction of movement of the cable is toward the front, avoiding the breaking blade 21 from causing harm to the user when cutting the cable.

[0029] As a preferred embodiment, Figure 2As shown, the demolition blade 21 extends from top to bottom, and the fire hydrant cover opening 22 has an edge line Q adjacent to the demolition blade 21, and the angle γ between the edge line Q and the tangent of the demolition blade 21 is ≤ 60°, so that the lower end of the demolition blade 21 and the edge line Q form a sharp angle, so that when using the demolition blade 21, the sharp angle can be used to break the obstacle first, and then the demolition blade 21 can be used for demolition, thereby improving ease of use.

[0030] As a preferred embodiment, Figure 2 As shown, the two inner side surfaces of the hexagonal nut removal recess 26, that is, the lower surface of the demolition corner 24 and the upper surface of the supporting corner 25, are provided with a clamping groove 200 for clamping the nut, and these two surfaces are V-shaped, that is, the hexagonal nut removal recess 26 is open on the rear side and gradually becomes smaller from back to front.

[0031] As a preferred embodiment, Figure 2 and Figure 4 As shown, the bottom of the handle 1 is detachably connected to a cover seat 3, on which a dagger blade 31 is mounted. The handle 1 is provided with a receiving cavity 10 with an opening at the bottom. When the cover seat 3 is connected to the handle, the dagger blade 31 extends into the receiving cavity 10. Specifically, the dagger blade 31 is flat, with a serrated blade 32 on one side and a flat blade edge 33 and a measuring scale section 34 with a scale scale on the other side. The measuring scale section 34 is a straight section with millimeter and centimeter scales.

[0032] As a further optimized implementation method, Figures 1 to 4 As shown, the cover seat 3 is provided with a downwardly extending demolition shear portion 35 and a pliers support portion 36. The demolition shear portion 35 is arc-shaped and is provided with an arc-shaped pliers blade 351 on the side close to the pliers support portion 36. When in use, the rear demolition sharp blade 241 is first used to break an opening in the obstacle, and then the pliers blade 351 is used to pry and cut the obstacle, and further demolition is performed in combination with the demolition blade 21, thereby improving the adaptability and application scenarios of the fire axe.

[0033] In order to improve the ability of the shear support part 36 to pry the obstacles and improve the working efficiency of the demolition shear part 35, Figure 4 As shown, the shear support portion 36 has an auxiliary shearing platform 361 and a support platform 362. The auxiliary shearing platform 361 and the demolition shear portion 35 are located in the same shearing plane. The support platform 362 is connected to the auxiliary shearing platform 361, and the support platform 362 protrudes outward in a direction perpendicular to the shearing plane. Figure 3As shown, the thickness of the support platform 362 gradually decreases from top to bottom, so that the lower end of the support platform 362 forms a sharp shape, thereby improving the ability of the lower end of the support platform 362 to penetrate or break obstacles.

[0034] In detail, Figure 2 and Figure 4 As shown, the top of the cover seat 3 is provided with an external threaded portion 301, and the lower end of the accommodating cavity 10 in the handle 1 is provided with a matching internal threaded portion 101, so that the cover seat 3 can be detachably connected to the handle 1. When in use, the dagger knife 31 is inserted into the accommodating cavity 10, and the cover seat 3 is locked on the handle 1 through the threaded structure.

[0035] like Figure 4 As shown, the handle 1 is tubular, and the top of the handle 1 has a square tube portion 11 with a rectangular cross-section. The bottom of the axe body 2 is provided with an insertion portion 27 for inserting into the inner side of the square tube portion 11. The axe body 2 is provided with a clamping portion 28 on one side of the insertion portion 27. A clamping groove 20 for clamping the tube wall of the square tube portion 11 is formed between the clamping portion 28 and the insertion portion 27. The square tube portion 11 is connected and fixed to the axe body 2 by welding, and the welding is carried out along the gap between the square tube portion 11 and the axe body 2, so that the whole structure is more solid and the service life of the product is improved.

[0036] Preferably, a switch wrench portion 29 for opening and closing a fire hydrant is further provided in the middle of the axe body 2. The switch wrench portion 29 has a hexagonal through hole that can match the switch shape of the fire hydrant to facilitate opening and closing the fire hydrant.

[0037] The above is only an embodiment of the present invention, and the commonly known specific structures and characteristics of the scheme are not described in detail here. It should be pointed out that for those skilled in the art, several modifications and improvements can be made without departing from the structure of the present invention, and these should also be regarded as the scope of protection of the present invention. These will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection claimed by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A multi-purpose fire-fighting hand axe, comprising a handle (1) and an axe body (2) connected thereto, wherein the front portion of the axe body (2) has a demolition blade (21), characterized in that: The axe body (2) is provided with a hexagonal and open fire hydrant cover opening (22) on the lower side of the demolition blade (21), and the axe body (2) is provided with an open and gradually narrowed cable cutting opening (23) on the upper side of the demolition blade (21). The cable cutting opening (23) is V-shaped and has cutting blades (231) on both sides that are gradually inclined downward from the back to the front. The rear part of the axe body (2) is provided with a demolition corner (24) extending backward, and the rear end of the demolition corner (24) is provided with a sharp demolition blade (241). The rear part of the axe body (2) is also provided with a supporting corner (25) located below the demolition corner (24), and a hexagonal nut disassembly recess (26) is formed between the demolition corner (24) and the supporting corner (25).

2. The multi-purpose fire-fighting hand axe according to claim 1, characterized in that: The bottom of the handle (1) is detachably connected to a cover seat (3), a dagger knife (31) is provided on the cover seat (3), and a receiving cavity (10) with a lower opening is provided in the handle (1). When the cover seat (3) is connected to the handle (1), the dagger knife (31) extends into the receiving cavity (10).

3. The multi-purpose fire-fighting hand axe according to claim 2, characterized in that: The dagger knife (31) is flat, and a serrated serrated blade (32) is provided on one side edge of the dagger knife (31), and a flat blade (33) and a measuring ruler section (34) with a scale mark are provided on the other side edge of the dagger knife (31).

4. The multi-purpose fire-fighting hand axe according to claim 2, characterized in that: The cover seat (3) is provided with a downwardly extending detachable shear portion (35) and a shear support portion (36); the detachable shear portion (35) is arc-shaped and has an arc-shaped shear blade (351) on a side close to the shear support portion (36).

5. The multi-purpose fire-fighting hand axe according to claim 4, characterized in that: The shear support portion (36) comprises an auxiliary shearing platform (361) and a support platform (362), wherein the auxiliary shearing platform (361) and the demolition shearing portion (35) are located on the same shearing plane, and the support platform (362) is connected to the auxiliary shearing platform (361), and the support platform (362) protrudes outward in a direction perpendicular to the shearing plane.

6. The multi-purpose fire-fighting hand axe according to claim 2, characterized in that: The top of the cover seat (3) is provided with an external thread portion (301), and the lower end of the inner accommodating cavity (10) of the handle (1) is provided with a matching internal thread portion (101), so that the cover seat (3) can be detachably connected to the handle (1).

7. The multi-purpose fire-fighting hand axe according to claim 1, characterized in that: The handle (1) is tubular, and the top of the handle (1) is provided with a square tube portion (11) with a rectangular cross section. The bottom of the axe body (2) is provided with an insertion portion (27) for inserting into the inner side of the square tube portion (11). The axe body (2) is provided with a clamping portion (28) on one side of the insertion portion (27). A clamping groove (20) for clamping the tube wall of the square tube portion (11) is formed between the clamping portion (28) and the insertion portion (27). The square tube portion (11) is connected and fixed to the axe body (2) by welding.

8. The multi-purpose fire-fighting hand axe according to claim 1, characterized in that: The included angle α between the cutting blades (231) on both side edges of the cable cutting opening (23) is ≤25°, and the included angle β between the bisector of the included angle α and the horizontal line is ≤45°.

9. The multi-purpose fire-fighting hand axe according to claim 1, characterized in that: The demolition blade (21) extends from top to bottom, and the fire hydrant cover opening (22) has a side line adjacent to the demolition blade (21), and an angle γ between the side line and a tangent line of the demolition blade (21) is ≤60°.

10. The multi-purpose fire-fighting hand axe according to claim 1, characterized in that: The middle part of the axe body (2) is also provided with a switch wrench part (29) for opening and closing the fire hydrant.

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