Portable safety hammer

Abstract

The portable safety hammer comprises an outer shell, an inner shell, a blade, a thick spring, a thin spring, a crushing needle and an excitation base, the outer shell is in a hollow cylindrical shape, internal threads are arranged at the two ends of the inner side of the outer shell, a V-shaped cutting groove is formed in one end of the inner shell, the other end of the inner shell is connected with the excitation base in a sliding mode, and the blade is arranged on the blade. The outer edge of the side, corresponding to the excitation base, of the inner shell is provided with external threads, a limiting base is further arranged in the inner shell, one end of the crushing needle is clamped into the limiting base to slide, the other end of the crushing needle is clamped into the excitation base to slide, and the outer edge of the crushing needle is sleeved with the thick spring and the thin spring. The thick spring and the thin spring are positioned between the excitation base and the limiting seat; in the whole assembling process, only screws are needed to fasten the inner shell body, ultrasonic welding is not needed for combination of the outer shell body and the inner shell body, the time for switching station procedures needed by assembling is saved, and therefore production assembling is facilitated, and the overall production efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of safety hammer technology, and in particular to a portable safety hammer. Background Technology

[0002] Currently, most portable safety hammers on the market are spring-loaded, small in size and easy to use, and have a hidden blade at the tail for cutting. However, the existing portable safety hammer production process is cumbersome. Multiple fastening tools are required when assembling the parts, and an ultrasonic welding machine is needed to weld the shell after assembly. Multiple processes require switching between multiple workstations, which leads to low production efficiency. Therefore, a portable safety hammer was designed to solve the above problems. Utility Model Content

[0003] In view of the shortcomings of existing safety hammers, the purpose of this utility model is to provide a portable safety hammer with advantages such as easy production and assembly and improved assembly efficiency.

[0004] To achieve the above objectives, the present invention employs the following technical solution: a portable safety hammer, comprising an outer shell, an inner shell, a blade, a coarse spring, a fine spring, a breaking needle, and an activation base. The outer shell is a hollow cylinder, with internal threads at both ends of its inner side. One end of the inner shell has a V-shaped cutting groove, and the other end of the inner shell is slidably connected to the activation base. The outer edge of the inner shell corresponding to the activation base has external threads. The inner shell also has a limiting seat inside. One end of the breaking needle is inserted into the limiting seat and slides, while the other end of the breaking needle is inserted into the activation base and slides. The coarse spring and the fine spring are sleeved on the outer edge of the breaking needle and are located between the activation base and the limiting seat.

[0005] Preferably, the breaking needle also has a conical stop, a limiting block and a sliding rod. The conical stop is disposed in the middle of the breaking needle, and the sliding rod is disposed at the tail of the breaking needle and is used to slide within the limiting seat. The tail of the sliding rod is provided with a limiting block to prevent the sliding rod from falling out of the limiting seat.

[0006] Preferably, the inner housing has an upper housing and a lower housing that are fastened together. The upper housing and the lower housing are fastened together and then fixed by screws. The upper housing and the lower housing are provided with embedding grooves corresponding to the blade fixing positions, and the upper housing and the lower housing are provided with sliding grooves corresponding to the excitation base positions.

[0007] Preferably, the portable safety hammer also has a snap-on cover and a screw cap, the snap-on cover being snapped onto the side of the outer shell extending from the breaking needle, and the screw cap being screwed onto the side of the outer shell extending from the blade;

[0008] Preferably, the portable safety hammer also has a mounting base for fixing on a vehicle. The mounting base has an adhesive flange and a U-shaped buckle. The U-shaped buckle is disposed on the top surface of the adhesive flange and is used to be fixed to the outer wall of the outer casing.

[0009] Preferably, the outer side of one end opening and the inner side of the other end opening of the outer casing have annular grooves, which are used to install a sealing ring;

[0010] The beneficial effects of this utility model are: the entire assembly process only requires screws to fasten the inner shell, and the combination of the outer shell and the inner shell does not require ultrasonic welding, which saves the time required to switch work stations during assembly, thereby facilitating production assembly and improving overall production efficiency. Attached Figure Description

[0011] Figure 1 This is an exploded view of the present invention;

[0012] Figure 2 This is a front structural view of the present invention. Detailed Implementation

[0013] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the scope of protection of the present invention.

[0014] It should be noted that in the description of this utility model, the terms "upper", "lower", "left", "right", "inner", "outer", etc., indicating the direction or positional relationship are based on the direction or positional relationship shown in the drawings. This is only for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this utility model.

[0015] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installed," "connected," "linked," "equipped with," and "set up" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0016] Please see Figures 1 to 2 The embodiments of this utility model include:

[0017] A portable safety hammer includes an outer shell 1, an inner shell 2, a blade 3, a coarse spring 4, a fine spring 5, a breaking needle 6, and an activation base 7. The outer shell 1 is a hollow cylinder with internal threads at both ends of its inner side. One end of the inner shell 2 has a V-shaped cutting groove 21, and the other end of the inner shell 2 is slidably connected to the activation base 7. The outer edge of the inner shell 2 corresponding to the activation base 7 has an external thread 22. The inner shell 2 also has a limiting seat 23 inside. One end of the breaking needle 6 is inserted into the limiting seat 23 and slides, while the other end of the breaking needle 6 is inserted into the activation base 7 and slides. The coarse spring 4 and the fine spring 5 are sleeved on the outer edge of the breaking needle 6 and are located between the activation base 7 and the limiting seat 23.

[0018] The breaking needle 6 also has a conical stop 61, a limiting block 62 and a sliding rod 63. The conical stop 61 is disposed in the middle of the breaking needle 6, and the sliding rod is disposed at the tail of the breaking needle 6 and is used to slide within the limiting seat 23. The tail of the sliding rod is provided with a limiting block 62 to prevent the sliding rod from falling out of the limiting seat 23.

[0019] The inner housing 2 has an upper housing 8 and a lower housing 9 that are fastened together. The upper housing 8 and the lower housing 9 are fastened together and fixed by screws. The upper housing 8 and the lower housing 9 are provided with an embedding groove 24 corresponding to the fixed position of the blade 3. The upper housing 8 and the lower housing 9 are provided with a sliding groove 25 corresponding to the position of the excitation base 7.

[0020] The portable safety hammer also has a snap-fit ​​cover 11 and a screw cap 12. The snap-fit ​​cover 11 snaps onto the side of the outer shell 1 that extends out of the breaking needle 6, and the screw cap 12 screws onto the side of the outer shell 1 that extends out of the blade 3.

[0021] The portable safety hammer also has a fixing base 10 for fixing on a vehicle. The fixing base 10 has an adhesive flange 101 and a U-shaped buckle 102. The U-shaped buckle 102 is disposed on the top surface of the adhesive flange 101 and is used to be fixed to the outer wall of the outer shell 1.

[0022] The outer side of one end opening of the outer shell 1 and the inner side of the other end opening have annular grooves, which are used to install sealing rings;

[0023] With the above settings, its specific working principle in actual operation is as follows:

[0024] The assembly process of the portable safety hammer is divided into two steps: the assembly of the inner shell 2 and the assembly of the outer shell 1.

[0025] Inner housing assembly: First, place the blade 3 in the embedding groove 24 of the lower housing 9, and place the tip of the crushing needle 6 in the excitation base 7; then, sleeve the coarse spring 4 and the fine spring 5 on the outer edge of the crushing needle 6, so that the sliding rod at the tail of the crushing needle 6 is engaged in the limiting seat 23, and the excitation base 7 is placed in the sliding groove 25 at one end of the lower housing 9; after completing the above steps, fasten the upper housing 8 onto the lower housing 9. At this time, the blade 3 is fixed in the embedding groove 24, the crushing needle 6 is restricted to slide by the limiting seat 23 through the sliding rod 63, and the excitation base 7 is restricted to slide by the sliding groove 25. After fastening, tighten with screws to complete the assembly of the inner housing 2;

[0026] Outer shell assembly: First, fasten the sealing ring into the annular grooves at both ends of the outer shell 1. Then, insert the assembled inner shell 2 into the outer shell 1, so that the external thread 22 on the outer edge of one end of the inner shell 2 engages with the internal thread of the outer shell 1, thereby completing the connection between the outer shell 1 and the inner shell 2. Then, fasten the snap-fit ​​cover 11 onto the side of the outer shell 1 where the breaking needle 6 extends, screw the screw cap 12 onto the side of the outer shell 1 where the blade 3 extends, and use the U-shaped buckle 102 to lock it onto the outer wall of the outer shell 1 for fixation, thereby completing the overall assembly of the portable safety hammer.

[0027] The entire assembly process only requires screws to fasten the inner shell 2. The combination of the outer shell 1 and the inner shell 2 does not require ultrasonic welding, which saves the time required to switch work stations during assembly, thereby facilitating production assembly and improving overall production efficiency.

[0028] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A portable safety hammer, characterized in that, The device includes an outer shell, an inner shell, a blade, a coarse spring, a fine spring, a breaking needle, and an excitation base. The outer shell is a hollow cylinder with internal threads at both ends of its inner side. One end of the inner shell has a V-shaped cutting groove, and the other end of the inner shell is slidably connected to the excitation base. The outer edge of the inner shell corresponding to the excitation base has external threads. The inner shell also has a limiting seat inside. One end of the breaking needle is engaged in the limiting seat and slides, while the other end of the breaking needle is engaged in the excitation base and slides. The coarse spring and the fine spring are sleeved on the outer edge of the breaking needle and are located between the excitation base and the limiting seat.

2. A portable safety hammer according to claim 1, characterized in that, The crushing needle also has a conical stop, a limiting block and a sliding rod. The conical stop is located in the middle of the crushing needle, and the sliding rod is located at the tail of the crushing needle and is used to slide within the limiting seat. The tail of the sliding rod is provided with a limiting block to prevent the sliding rod from coming out of the limiting seat.

3. A portable safety hammer according to claim 1, characterized in that, The inner housing has an upper housing and a lower housing that are fastened together. The upper housing and the lower housing are fastened together and fixed by screws. The upper housing and the lower housing are provided with embedding grooves corresponding to the blade fixing positions, and the upper housing and the lower housing are provided with sliding grooves corresponding to the excitation base positions.

4. A portable safety hammer according to claim 1, characterized in that, The portable safety hammer also has a snap-on cover and a screw cap. The snap-on cover snaps onto the side of the outer shell from which the breaking needle extends, and the screw cap screws onto the side of the outer shell from which the blade extends.

5. A portable safety hammer according to claim 1, characterized in that, The portable safety hammer also has a mounting base for fixing it to a vehicle. The mounting base has an adhesive flange and a U-shaped buckle. The U-shaped buckle is located on the top surface of the adhesive flange and is used to lock onto the outer wall of the outer casing for fixation.

6. A portable safety hammer according to claim 1, characterized in that, The outer side of one end opening and the inner side of the other end opening of the outer casing have annular grooves, which are used to install sealing rings.

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