CN213226037U - Hammer with foldable and self-locking hammer handle - Google Patents

Abstract

The utility model discloses hammer of collapsible auto-lock of hammer handle relates to hardware and tools technical field, especially relates to a hammer that hammer is collapsible and can lock automatically. The main body of the hammer head of the utility model is a columnar structure, the middle lower part of the main body is processed with a connecting part with the hammer handle, the middle part of the connecting part is provided with a shaft hole, and the front part and the bottom central position of the connecting part are provided with a positioning pin hole; the top of the hammer handle at the inner layer of the hammer handle is connected with the hammer head through the trunnion and the shaft hole; the self-locking mechanism is arranged in the inner layer hammer handle and is matched with the positioning pin hole for use, and the assembling angle of the hammer head and the hammer handle is positioned and locked; the outer layer hammer handle is arranged outside the inner layer hammer handle and is connected and positioned through a connecting piece; the positioning nut is connected with the external thread at the bottom of the outer layer hammer handle or the external thread of the self-locking mechanism in a matching way through the internal thread. The technical proposal of the utility model solves the problem that the T-shaped structure of the hammer head and the hammer handle in the prior art causes space occupation and inconvenience for storage; the folding process of the existing folding hammer handle is inconvenient, and the problems of easy looseness and the like are solved.

Description

Hammer with foldable and self-locking hammer handle

Technical Field

The utility model discloses hammer of collapsible auto-lock of hammer handle relates to hardware and tools technical field, especially relates to a hammer that hammer is collapsible and can lock automatically.

Background

The hammer has an indispensable function in daily work and life, and people can use a large amount of hammers in certain industries or people's homes, but the storage of the hammers after use is problematic; the existing hammer is generally in a T shape, and occupies a large space during storage, although the existing folding hammer handle exists, the connection between the hammer head and the hammer handle and the extension of the hammer handle are easy to loosen due to the structural problem and the folding process is inconvenient, thereby influencing the daily use

Aiming at the problems in the prior art, a novel hammer with a foldable and self-locking hammer handle is researched and designed, so that the problem in the prior art is very necessary to be solved.

Disclosure of Invention

The T-shaped structure of the hammer head and the hammer handle proposed according to the prior art causes occupied space and inconvenience in storage; the folding process of the existing folding hammer handle is inconvenient, the technical problems of easy looseness and the like are solved, and the hammer with the foldable and self-locking hammer handle is provided. The utility model discloses but mainly adopt 90 degrees pivoted tups, cooperate telescopic hammer handle to reach and save parking space, and realize the flexible effect of operation of hammer handle.

The utility model discloses a technical means as follows:

a hammer with a foldable self-locking hammer handle, comprising: the hammer head is arranged at the top end of the hammer handle; it is characterized in that the preparation method is characterized in that,

furthermore, the main body of the hammer head is of a columnar structure, one end of the hammer head is a butt end, and the other end of the hammer head is processed into a claw nail puller structure; a connecting part with a hammer handle is processed at the lower part of the middle of the hammer head, the outer part of the connecting part is processed into an outer arc surface with 90 degrees, shaft holes are symmetrically arranged in the middle parts of two sides of the connecting part, and positioning pin holes are arranged at the central positions of the front part and the bottom part of the connecting part;

further, the hammer handle includes: the inner layer hammer handle, the self-locking mechanism, the connecting piece, the outer layer hammer handle and the positioning nut; the top of the inner layer hammer handle is connected with the hammer head through the trunnion and the shaft hole; the self-locking mechanism is arranged in the inner layer hammer handle and connected with the bottom of the inner layer hammer handle, and the self-locking mechanism is matched with the positioning pin hole for positioning and locking the assembly angle of the hammer head and the hammer handle; the outer layer hammer handle is arranged outside the inner layer hammer handle and is connected and positioned through a connecting piece, so that the telescopic function of the outer layer hammer handle and the inner layer hammer handle is realized; the positioning nut is connected with the external thread at the bottom of the outer layer hammer handle or the external thread of the self-locking mechanism in a matching way through the internal thread.

Further, the inner layer hammer handle includes: the hammer comprises a columnar inner hammer handle and an ear-shaped connecting part arranged at the top of the columnar inner hammer handle;

furthermore, trunnions matched with the upper shaft hole of the hammer head are symmetrically arranged on the inner sides of the two lug parts of the lug-shaped connecting part;

furthermore, the bottom end of the ear-shaped connecting part is provided with at least two sunken arc-shaped positioning locking grooves for positioning and connecting with the outer layer hammer handle;

furthermore, a lock pin hole is formed in the columnar inner hammer handle, and two groups of T-shaped sliding grooves are symmetrically formed in the outer wall of the columnar inner hammer handle;

furthermore, the upper portion of lockpin hole is the cylinder hole, and the middle part is the rectangle hole, and the lower part is the spring hole for use with cooperation self-locking mechanism.

Further, the self-locking mechanism includes: self-locking pin, tension spring;

furthermore, the self-locking pin consists of a locking rod and a baffle plate; the upper part of the lock rod is a thin cylinder matched with the cylindrical hole at the upper part of the lock pin hole, and the lower part of the lock rod is a rectangular cylinder matched with the rectangular hole at the middle part of the lock pin hole; the baffle plate is fixed with the bottom end of the lock rod;

furthermore, the tension spring is sleeved on the lock rod, the bottom end of the tension spring is fixedly connected with the baffle plate, and after the lock rod is inserted into the lock pin hole, the top end of the tension spring is fixedly connected with the inside of the lock pin hole;

furthermore, the outer circle of the baffle is provided with external threads and a rectangular through groove communicated with the T-shaped sliding groove on the columnar inner hammer handle, and the rectangular through groove is used for the middle section of the connecting piece to pass through;

furthermore, the upper part of the lock rod penetrates through the lock pin hole and then is inserted into the positioning pin hole of the hammer head to lock and position the hammer head;

furthermore, the bottom surface of the baffle is provided with arc-shaped positioning locking grooves which are the same as the bottom end of the connecting part of the ear-shaped connecting part in position, shape and quantity, and the baffle is used for positioning and connecting the outer layer hammer handle.

Furthermore, the number of the connecting pieces is 4, the connecting pieces are divided into two groups to be matched for use, and each connecting piece consists of a connecting rod and a cylinder with two ends processed;

the cylinder and the connecting rod form a T-shaped structure, one end of the connecting piece is arranged in the T-shaped chute of the columnar inner hammer handle, and the T-shaped structure at the other end is connected with the inner side of the outer hammer handle.

Further, the outer layer hammer handle comprises two semi-arc structures with the same structure; the two semi-arc structures are combined to form a right cylinder structure;

furthermore, a group of T-shaped rotating grooves are respectively processed on the inner sides of the two semi-arc structures and used for assembling the connecting piece, and the cylindrical structure of the connecting piece can rotate at a certain angle inside the cylindrical structure and is connected with the cylindrical inner hammer handle;

furthermore, the top end and the bottom end of each of the two semi-arc structures are respectively provided with a self-locking assembly matched with the arc positioning locking groove;

furthermore, the self-locking assembly consists of a self-locking spring and a locking bead; is arranged in the top end lock hole of the semi-arc structure

Further, the bottom of the outer layer hammer handle is provided with an external thread.

Further, the main body of the positioning nut is cylindrical;

furthermore, a cylindrical groove is formed in the upper portion of the positioning nut, and internal threads are formed in the inner wall of the groove and matched with external threads at the bottom of the outer-layer hammer handle; two sunken arc-shaped positioning locking grooves are symmetrically formed in the bottom in the groove and the top end of the positioning nut and are matched with a self-locking assembly at the bottom end of the outer-layer hammer handle for use;

furthermore, the bottom of the groove of the positioning nut is provided with a semicircular movable plate, and a reset spring is arranged at the joint to ensure that the semicircular movable plate is opened and closed in a single-sided manner and can be automatically closed.

Furthermore, the inner side arc of the semi-arc structure of the outer layer hammer handle is consistent with the outer side arc of the columnar inner hammer handle.

Furthermore, the main mechanism of the columnar inner hammer handle is formed by additionally arranging a section of cuboid structure in the middle of a cylinder divided into two parts, the length of the cuboid structure is consistent with that of the cylinder structure, the width of the cuboid structure is 2 times of the thickness of the semi-arc structure of the outer hammer handle than the diameter of the cylinder, and the thickness of the cuboid structure is the thickness of the semi-arc structure of the outer hammer handle; the hammer handle structure comprises a cylindrical inner hammer handle, a cylindrical outer hammer handle, a cylindrical inner hammer handle, a hammer handle and a hammer handle.

Furthermore, the opening of the T-shaped chute at the bottom end of the columnar inner hammer handle is of a rectangular notch structure, and the rectangular notch structure is consistent with the middle structure of the connecting piece, so that the connecting piece can be prevented from slipping from the T-shaped chute.

Furthermore, the length of the connecting rod part in the middle of the connecting piece is the sum of the structural length of a rectangular notch below the columnar inner hammer handle, the thickness of the upper baffle and the distance of the notch of the T-shaped rotating groove at the top end of the outer hammer handle; therefore, the connection structure of the expanded outer layer hammer handle and the inner layer hammer handle is tighter and the structure is more reliable.

The utility model discloses during the use:

the self-locking mechanism is pulled out from the columnar inner hammer handle, so that the lock rod is pulled out from the lock pin hole in the front part of the hammer head connecting part, the hammer head is rotated to enable the hammer head and the hammer handle to be in a T-shaped structure, the self-locking mechanism is released, the lock rod is inserted into the lock pin hole in the lower part of the vertical head connecting part under the action of the tension spring to lock and position the hammer head, and the hammer head is in a working state;

turning down the positioning nut, pulling out the outer layer hammer handle downwards, connecting the outer layer hammer handle with the columnar inner hammer handle in a sliding manner through a connecting piece, and combining the outer layer hammer handle into a right circular hammer handle after the outer layer hammer handle slides in place; the self-locking assembly at the top end of the outer layer hammer handle is clamped into the arc-shaped positioning locking groove at the bottom end of the self-locking mechanism to be locked and positioned; the positioning nut is connected with the bottom of the outer-layer hammer handle through threads, and after connection, the self-locking assembly at the bottom end of the outer-layer hammer handle is clamped into an arc-shaped positioning locking groove arranged at the bottom of the groove of the positioning nut to be locked and positioned, so that the conversion of the working state can be completed;

after the working state is converted, the outer layer hammer handle at the lower part of the hammer handle is of a hollow structure, small articles which are not used can be placed into the movable plate below the positioning nut, and if the small articles need to be taken out, the positioning nut is screwed down.

Otherwise, the hammer can be converted from the working state to the storage state.

Compared with the prior art, the utility model has the advantages of it is following:

1. the hammer with the foldable self-locking hammer handle provided by the utility model is clamped into the T-shaped chute at the lower end of the self-locking pin through the connecting piece, the self-locking pin can not move up and down any more, and the stability of the hammer handle is improved;

2. the utility model provides a hammer with a foldable self-locking hammer handle, which ensures the stability of the inner and outer hammer handles in the extension state by arranging a self-locking component and an arc positioning locking groove between the outer hammer handle and the columnar inner hammer handle for matching use;

3. the utility model provides a hammer with a foldable self-locking hammer handle, which ensures the stable combination of two semi-arc structures of the outer hammer handle by arranging a self-locking component and an arc positioning locking groove between the outer hammer handle and a positioning nut;

4. the hammer with the foldable self-locking hammer handle provided by the utility model saves the storage space by the hammer head structure which can rotate 90 degrees and can be self-locked and the telescopic hammer handle;

in conclusion, the technical scheme of the utility model solves the problem that the T-shaped structure of the hammer head and the hammer handle in the prior art causes space occupation and inconvenience in storage; the folding process of the existing folding hammer handle is inconvenient, and the problems of easy looseness and the like are solved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.

FIG. 1 is a schematic view of the structure of the hammer handle in a retracted state;

FIG. 2 is a side view of the hammer handle in a retracted state;

FIG. 3 is a schematic view of the structure of the hammer handle in an extended state;

fig. 4 is a schematic structural view of the hammer head of the present invention;

fig. 5 is a side view of the hammer head of the present invention;

FIG. 6 is a schematic view of the inner layer hammer handle structure of the present invention;

FIG. 7 is a side view of the inner hammer shank of the present invention;

FIG. 8 is a bottom view of the columnar inner hammer handle of the present invention;

FIG. 9 is a schematic view of the structure of the connector of the present invention;

fig. 10 is a side view of the connector of the present invention;

FIG. 11 is a schematic view of the outer hammer handle structure of the present invention;

FIG. 12 is a side view of the outer hammer shank of the present invention;

FIG. 13 is a top view of the outer hammer handle of the present invention;

FIG. 14 is a bottom view of the outer hammer handle of the present invention;

FIG. 15 is a schematic structural view of the self-locking mechanism of the present invention;

fig. 16 is a side view of the self-locking mechanism of the present invention;

fig. 17 is a top view of the self-locking mechanism of the present invention;

fig. 18 is a schematic structural view of the positioning nut of the present invention;

fig. 19 is a side view of the positioning nut of the present invention;

fig. 20 is a top view of the positioning nut of the present invention.

In the figure:

1. the hammer head 11, the connecting part 12, the shaft hole 13 and the positioning pin hole;

2. the inner layer hammer handle 21, the columnar inner hammer handle 211, the lock pin hole 212, the T-shaped sliding groove 22, the lug connecting part 221, the trunnion 222 and the arc-shaped positioning lock groove;

3. the self-locking mechanism 31, the self-locking pin 311, the locking rod 312, the baffle 3121, the rectangular through groove 32 and the tension spring;

4. a connecting member;

5. the outer layer hammer handle 51, the T-shaped rotary groove 52, the self-locking assembly 521, the self-locking spring 522 and the locking bead;

6. a positioning nut 61, a semicircular flap 62 and a return spring.

Detailed Description

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the invention. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

Unless specifically stated otherwise, the relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present invention. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. Any specific values in all examples shown and discussed herein are to be construed as exemplary only and not as limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the orientation words such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom", etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and in the case of not making a contrary explanation, these orientation words do not indicate and imply that the device or element in question must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the scope of the present invention: the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and if not stated otherwise, the terms have no special meaning, and therefore, the scope of the present invention should not be construed as being limited.

As shown in fig. 1-5, the utility model provides a hammer of collapsible auto-lock of hammer handle, include: the hammer comprises a hammer head 1 and a hammer handle, wherein the hammer head 1 is arranged at the top end of the hammer handle; the hammer head is characterized in that the main body of the hammer head 1 is of a columnar structure, one end of the hammer head is a butt end, and the other end of the hammer head is processed into a claw nail puller structure; a connecting part 11 connected with a hammer handle is processed at the lower part of the middle of the hammer head 1, the outer part of the connecting part 11 is processed into an outer arc surface of 90 degrees, shaft holes 12 are symmetrically arranged in the middle parts of two sides of the connecting part 11, and positioning pin holes 13 are arranged at the central positions of the front part and the bottom part of the connecting part 11;

as shown in fig. 1-3, 9, 10, the hammer shank includes: the hammer comprises an inner-layer hammer handle 2, a self-locking mechanism 3, a connecting piece 4, an outer-layer hammer handle 5 and a positioning nut 6; the top of the inner layer hammer handle 2 is connected with the hammer head 1 through a trunnion 221 and a shaft hole 12; the self-locking mechanism 3 is arranged inside the inner-layer hammer handle 2 and is connected with the bottom of the inner-layer hammer handle 2, and the self-locking mechanism 3 is matched with the positioning pin hole 13 for positioning and locking the assembly angle of the hammer head 1 and the hammer handle; the outer-layer hammer handle 5 is arranged outside the inner-layer hammer handle 2 and is connected and positioned through the connecting piece 4, so that the telescopic function of the outer-layer hammer handle 5 and the inner-layer hammer handle 2 is realized; the positioning nut 6 is matched and connected with the external thread at the bottom of the outer layer hammer handle 5 or the external thread of the self-locking mechanism 3 through the internal thread.

As shown in fig. 1 to 3 and 6 to 8, the inner layer hammer shank 2 includes: the hammer comprises a columnar inner hammer handle 21 and an ear-shaped connecting part 22 arranged at the top of the columnar inner hammer handle 21;

trunnions 221 matched with the shaft hole 12 on the hammer head 1 are symmetrically arranged on the inner sides of the two ears of the ear-shaped connecting part 22;

the bottom end of the ear-shaped connecting part 22 is provided with at least two sunken arc-shaped positioning locking grooves 222 for positioning and connecting with the outer layer hammer handle 5;

the interior of the columnar inner hammer handle 21 is provided with a lock pin hole 211, and the outer wall is symmetrically provided with two groups of T-shaped sliding grooves 212;

the upper portion of lockpin hole 211 is the cylinder hole, and the middle part is the rectangle hole, and the lower part is the spring hole for use with cooperation self-locking mechanism.

As shown in fig. 1 to 3 and 15 to 17, the self-locking mechanism 3 includes: a self-locking pin 31, a tension spring 32;

the self-locking pin 31 consists of a locking rod 311 and a baffle 312; the upper part of the locking rod 311 is a thin cylinder matched with the cylindrical hole at the upper part of the locking pin hole 211, and the lower part is a rectangular cylinder matched with the rectangular hole at the middle part of the locking pin hole 211; the baffle 312 is fixed with the bottom end of the lock bar 311;

the tension spring 32 is sleeved on the lock rod 311, the bottom end of the tension spring 32 is fixedly connected with the baffle plate 312, and after the lock rod 311 is inserted into the lock pin hole 211, the top end of the tension spring 32 is fixedly connected with the inside of the lock pin hole 211;

the outer circle of the baffle 312 is provided with external threads and a rectangular through groove 3121 communicated with the T-shaped sliding groove 212 on the columnar inner hammer handle 21 for the middle section of the connecting piece 4 to pass through;

the upper part of the lock rod 311 penetrates through the lock pin hole 211 and then is inserted into the positioning pin hole 13 of the hammer head 1 to lock and position the hammer head 1;

the bottom surface of the baffle 312 is provided with arc-shaped positioning locking grooves 222 with the same positions, shapes and numbers as those of the bottom end of the connecting part of the ear-shaped connecting part 22, and the outer layer hammer handle 5 is positioned and connected for use.

As shown in fig. 9 and 10, the number of the connecting pieces 4 is 4, and the connecting pieces are divided into two groups to be matched for use, and each group consists of a connecting rod and a cylinder with two ends being processed;

the cylinder and the connecting rod form a T-shaped structure, one end of the connecting piece 4 is arranged in the T-shaped sliding groove 212 of the columnar inner hammer handle 21, and the other end of the connecting piece is connected with the inner side of the outer hammer handle 5.

As shown in fig. 1-3 and 11-14, the outer-layer hammer handle 5 comprises two semi-arc structures with the same structure; the two semi-arc structures are combined to form a right cylinder structure;

a group of T-shaped rotating grooves 51 are respectively processed on the inner sides of the two semi-arc structures and used for assembling the connecting piece 4, and the cylindrical structure of the connecting piece 4 can rotate at a certain angle inside and is connected with the cylindrical inner hammer handle 21;

the top end and the bottom end of the two semi-arc structures are respectively provided with a self-locking assembly 52 matched with the arc positioning locking groove 222;

the self-locking assembly 52 consists of a self-locking spring 521 and a locking bead 522; is arranged in the top end lock hole of the semi-arc structure

The bottom of the outer layer hammer handle 5 is provided with external threads.

As shown in fig. 1-3, 18-20, the body of the positioning nut 6 is cylindrical;

a cylindrical groove is formed in the upper portion of the positioning nut 6, and internal threads are formed in the inner wall of the groove and matched with external threads at the bottom of the outer-layer hammer handle 5; two concave arc-shaped positioning locking grooves 222 are symmetrically arranged at the bottom in the groove and at the top end of the positioning nut 6 and are matched with the self-locking component 52 at the bottom end of the outer-layer hammer handle 5 for use;

the bottom of the groove of the positioning nut 6 is provided with a semicircular flap 61, and the joint is provided with a return spring 62, so that the semicircular flap 61 can be opened and closed in a single-sided manner and can be closed automatically.

As shown in fig. 6-8 and 11-14, the inner arc of the semi-arc structure of the outer layer hammer handle 5 coincides with the outer arc of the columnar inner hammer handle 21.

As shown in fig. 6 and 8, the main mechanism of the columnar inner hammer handle 21 is formed by additionally arranging a section of rectangular structure in the middle of a cylinder divided into two parts, the length of the rectangular structure is consistent with that of the cylinder, the width of the rectangular structure is 2 times of the thickness of the semi-arc structure of the outer hammer handle 5 which is wider than the diameter of the cylinder, and the thickness of the rectangular structure of the outer hammer handle is equal to that of the semi-arc structure of the outer hammer handle; when the hammer handle is unfolded, the two semi-arc structures of the outer-layer hammer handle can be completely clamped at the lower part of the columnar inner hammer handle 21 after being combined, so that an integral hammer handle structure is formed.

As shown in fig. 8 and 13, the opening of the T-shaped chute 212 at the bottom end of the columnar inner hammer handle 21 is a rectangular notch structure, and the rectangular notch structure is consistent with the middle structure of the connecting piece 4, so that the connecting piece 4 can be prevented from sliding down from the T-shaped chute 212.

As shown in the figure, the length of the middle connecting rod part of the connecting piece 4 is the sum of the structural length of the rectangular notch below the columnar inner hammer handle 21, the thickness of the upper baffle 312 and the distance of the notch of the T-shaped rotating groove 51 at the top end of the outer hammer handle; therefore, the connection structure of the expanded outer layer hammer handle 5 and the inner layer hammer handle 2 is tighter and more reliable.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims (10)

1. A hammer with a foldable self-locking hammer handle, comprising: the hammer comprises a hammer head (1) and a hammer handle, wherein the hammer head (1) is arranged at the top end of the hammer handle; it is characterized in that the preparation method is characterized in that,

the main body of the hammer head (1) is of a columnar structure, one end of the hammer head is a butt end, and the other end of the hammer head is processed into a claw nail puller structure; a connecting part (11) connected with a hammer handle is processed at the lower part of the middle of the hammer head (1), the outer part of the connecting part (11) is processed into an outer arc surface with 90 degrees, shaft holes (12) are symmetrically arranged in the middle parts of two sides of the connecting part (11), and positioning pin holes (13) are arranged at the central positions of the front part and the bottom part of the connecting part (11);

the hammer handle includes: the hammer comprises an inner-layer hammer handle (2), a self-locking mechanism (3), a connecting piece (4), an outer-layer hammer handle (5) and a positioning nut (6); the top of the inner layer hammer handle (2) is connected with the hammer head (1) through a trunnion (221) and a shaft hole (12); the self-locking mechanism (3) is arranged inside the inner-layer hammer handle (2) and is connected with the bottom of the inner-layer hammer handle (2), and the self-locking mechanism (3) is matched with the positioning pin hole (13) for use to position and lock the assembly angle of the hammer head (1) and the hammer handle; the outer-layer hammer handle (5) is arranged outside the inner-layer hammer handle (2) and is connected and positioned through the connecting piece (4), so that the telescopic function of the outer-layer hammer handle (5) and the inner-layer hammer handle (2) is realized; the positioning nut (6) is matched and connected with the external thread at the bottom of the outer layer hammer handle (5) or the external thread of the self-locking mechanism (3) through the internal thread.

2. The foldable self-locking hammer of the hammer handle according to claim 1, wherein the inner-layer hammer handle (2) comprises: the hammer comprises a columnar inner hammer handle (21) and an ear-shaped connecting part (22) arranged at the top of the columnar inner hammer handle (21);

trunnions (221) matched with the shaft holes (12) on the hammer head (1) are symmetrically arranged on the inner sides of the two ears of the ear-shaped connecting part (22);

the bottom end of the ear-shaped connecting part (22) is provided with at least two sunken arc-shaped positioning locking grooves (222) for positioning and connecting with the outer layer hammer handle (5);

a lock pin hole (211) is formed in the columnar inner hammer handle (21), and two groups of T-shaped sliding grooves (212) are symmetrically formed in the outer wall of the columnar inner hammer handle;

the upper portion of lockpin hole (211) be the cylinder hole, the middle part is the rectangle hole, the lower part is the spring hole for use with cooperation self-locking mechanism.

3. The foldable self-locking hammer of a hammer handle according to claim 1, wherein the self-locking mechanism (3) comprises: a self-locking pin (31) and a tension spring (32);

the self-locking pin (31) consists of a lock rod (311) and a baffle plate (312); the upper part of the lock rod (311) is a thin cylinder matched with a cylindrical hole at the upper part of the lock pin hole (211), and the lower part of the lock rod is a rectangular cylinder matched with a rectangular hole at the middle part of the lock pin hole (211); the baffle (312) is fixed with the bottom end of the lock rod (311);

the tension spring (32) is sleeved on the lock rod (311), the bottom end of the tension spring (32) is fixedly connected with the baffle plate (312), and after the lock rod (311) is inserted into the lock pin hole (211), the top end of the tension spring (32) is fixedly connected with the inside of the lock pin hole (211);

the outer circle of the baffle (312) is provided with external threads and a rectangular through groove (3121) communicated with a T-shaped sliding groove (212) on the columnar inner hammer handle (21) for the passage of the middle section of the connecting piece (4);

the upper part of the lock rod (311) penetrates through the lock pin hole (211) and then is inserted into the positioning pin hole (13) of the hammer head (1) to lock and position the hammer head (1);

the bottom surface of the baffle (312) is provided with arc-shaped positioning locking grooves (222) which are the same as the bottom end positions, shapes and numbers of the connecting parts of the lug-shaped connecting parts (22), and the outer layer hammer handle (5) is positioned and connected for use.

4. The hammer with the foldable and self-locking hammer handle according to claim 1, wherein the number of the connecting pieces (4) is 4, the connecting pieces are divided into two groups which are matched for use and each group consists of a connecting rod and a cylinder body with two ends processed;

the cylinder and the connecting rod form a T-shaped structure, one end of the connecting piece (4) is arranged in a T-shaped sliding groove (212) of the columnar inner hammer handle (21), and the other end of the connecting piece is connected with the inner side of the outer hammer handle (5).

5. The foldable self-locking hammer of the hammer handle according to claim 1, wherein the outer hammer handle (5) comprises two semi-arc structures with the same structure; the two semi-arc structures are combined to form a right cylinder structure;

a group of T-shaped rotating grooves (51) are respectively processed on the inner sides of the two semi-arc structures and used for assembling the connecting piece (4), and the cylindrical structure of the connecting piece (4) can rotate at a certain angle inside and is connected with the columnar inner hammer handle (21);

the top end and the bottom end of each of the two semi-arc structures are respectively provided with a self-locking assembly (52) matched with the arc positioning locking groove (222) for use;

the self-locking assembly (52) consists of a self-locking spring (521) and a locking bead (522); is arranged in the top end lock hole of the semi-arc structure

The bottom of the outer layer hammer handle (5) is provided with an external thread.

6. The foldable self-locking hammer of a hammer handle according to claim 1, wherein the body of the positioning nut (6) is cylindrical;

a cylindrical groove is formed in the upper portion of the positioning nut (6), and internal threads are formed in the inner wall of the groove and matched with external threads at the bottom of the outer-layer hammer handle (5) for use; two sunken arc-shaped positioning locking grooves (222) are symmetrically formed in the bottom in the groove and the top end of the positioning nut (6) and are matched with a self-locking assembly (52) at the bottom end of the outer-layer hammer handle (5) for use;

the bottom of the groove of the positioning nut (6) is provided with a semicircular movable plate (61), and a reset spring (62) is arranged at the joint to ensure that the semicircular movable plate (61) is opened and closed in a single-sided manner and can be automatically closed.

7. The foldable self-locking hammer with a hammer handle according to claim 5, characterized in that the inner arc of the semi-arc structure of the outer hammer handle (5) is identical to the outer arc of the columnar inner hammer handle (21).

8. The hammer with the foldable and self-locking hammer handle according to claim 7, characterized in that a main body mechanism of the columnar inner hammer handle (21) is formed by additionally arranging a section of cuboid structure in the middle of a cylinder divided into two parts, the length of the cuboid structure is consistent with that of the cylinder structure, the width of the cuboid structure is 2 times of the thickness of the semi-arc structure of the outer hammer handle (5) wider than the diameter of the cylinder, and the thickness of the cuboid structure is the thickness of the semi-arc structure of the outer hammer handle; when the hammer handle is unfolded, the two semi-arc structures of the outer-layer hammer handle can be completely clamped at the lower part of the columnar inner hammer handle (21) after being combined, so that an integral hammer handle structure is formed.

9. The hammer with the foldable and self-locking hammer handle according to claim 8, wherein the opening of the T-shaped sliding groove (212) at the bottom end of the columnar inner hammer handle (21) is of a rectangular notch structure, and the rectangular notch structure is consistent with the middle structure of the connecting piece (4), so that the connecting piece (4) can be prevented from sliding down from the T-shaped sliding groove (212).

10. The foldable self-locking hammer with the hammer handle according to claim 9, characterized in that the length of the middle connecting rod part of the connecting piece (4) is the sum of the structural length of a rectangular notch below the columnar inner hammer handle (21), the thickness of the upper baffle (312) and the distance of the notch of the T-shaped rotating groove (51) at the top end of the outer hammer handle (5); therefore, the connection structure of the expanded outer layer hammer handle (5) and the inner layer hammer handle (2) is tighter and the structure is more reliable.

Images