Engineering hammer for constructional engineering

Abstract

The utility model discloses an engineering hammer for constructional engineering. The engineering hammer comprises a hammer head, a hammer handle, a clamping block, a bidirectional lead screw and a rocking handle. The two clamping blocks can be driven to be close to or far away from each other by rotating the rocking handle, and the distance between the two clamping blocks is adjusted according to the size of a nail to be pulled out, so that the distance of the nail on the hammer head is close to the front as much as possible when the nail is pulled out, and the danger to workers due to the fact that the nail is separated from the hammer head is effectively avoided.

Description

Technical Field

[0001] The utility model relates to an engineering hammer, in particular to an engineering hammer for construction engineering. Background Art

[0002] Construction engineering refers to the engineering entity formed by the construction of various housing buildings and their ancillary facilities and the installation of the pipelines and equipment supporting them.

[0003] In construction, engineering hammers are often used. In the prior art, the front end of the hammer head of the engineering hammer is flat for knocking; the rear end is in the shape of a ram's horn and is often used to pull out nails. However, since the distance between the ram's horns is fixed, when it is necessary to pull out a relatively thick nail, the end of the ram's horn needs to be used. When exerting force here, the nail is likely to slip between the hammer head and the worker, which may cause harm to the worker. Summary of the Utility Model

[0004] The present application provides an engineering hammer for construction engineering, which can solve the problem that the nail is likely to slip between the hammer head when a relatively thick nail needs to be pulled out.

[0005] In the present application, an engineering hammer for construction engineering is provided, including a hammer head, a hammer handle, clamping blocks, a bidirectional lead screw, and a rocking handle; one section of thread is arranged on each of the left side and the right side of the bidirectional lead screw, and the two sections of threads have opposite helix directions. The bidirectional lead screw is rotatably connected to the rear end of the hammer head, and its rotation axis is along the left-right direction; the rocking handle is arranged at one end of the bidirectional lead screw for driving the bidirectional lead screw to rotate; the rear end of the clamping block is bent downward, there are two clamping blocks, the clamping blocks slide along the left-right direction at the rear end of the hammer head, and the two clamping blocks are respectively arranged at the threads on the left side and the right side of the bidirectional lead screw.

[0006] In one embodiment, a connecting block and a limiting component are further included. The limiting component is fixedly connected to the hammer head, and a first through hole is arranged on the limiting component along the left-right direction; the connecting block is fixedly connected to the bidirectional lead screw, and the rocking handle is slidably connected to the connecting block along the left-right direction; a plurality of limiting grooves are arranged in a circumferential array at one end of the limiting component far from the bidirectional lead screw. When the rocking handle enters the limiting groove, the rotation of the rocking handle is restricted.

[0007] In one embodiment, the rocking handle is made of iron, and a magnet is fixedly arranged in each limiting groove.

[0008] In one embodiment, the bidirectional lead screw is a trapezoidal lead screw.

[0009] In one embodiment, in the top view direction, the two mutually approaching surfaces on the two clamping blocks are both inclined surfaces, and the distance between the two clamping blocks is larger the closer to the rear end of the hammer head.

[0010] In one embodiment, a sponge sleeve is provided on the hammer handle.

[0011] In summary, in the present application, an engineering hammer for construction projects has the following beneficial effects compared with the prior art:

[0012] It is possible to drive the two clamping blocks to approach or move away from each other by rotating the crank, adjust the distance between the two clamping blocks according to the size of the nail to be pulled out, so that the distance of the nail on the hammer head is as far forward as possible when pulling out the nail, effectively avoiding the danger caused by the nail coming out of the hammer head to the worker. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to better illustrate the technical solutions in the embodiments of the present application or the background art, the drawings required for use in the embodiments of the present application or the background art will be described below.

[0014] Figure 1 It is an overall structural view of an engineering hammer for construction projects;

[0015] Figure 2 It is a top view of an engineering hammer for construction projects;

[0016] Figure 3 It is an overall structural view of an engineering hammer for construction projects;

[0017] Figure 4 It is Figure 1 an enlarged view of area A in

[0018] In the figure, 1, hammer head; 2, hammer handle; 3, sponge sleeve; 4, chute; 5, clamping block; 6, bidirectional lead screw; 7, crank; 8, connecting block; 10, limiting member; 11, limiting groove; 12, magnet. Embodiment

[0019] The following further illustrates the specific embodiments of the present invention in conjunction with the accompanying drawings; the following embodiments are used to illustrate the present invention, but do not limit the scope of the present invention. And the described embodiments are part of the embodiments of the present disclosure, not all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the described embodiments of the present disclosure without creative efforts fall within the scope of protection of the present disclosure.

[0020] Unless otherwise defined, technical terms or scientific terms used in this disclosure shall have the ordinary meanings as understood by those of ordinary skill in the art to which this disclosure pertains. The terms "first", "second" and similar terms used in this disclosure do not denote any order, quantity or importance, but are only used to distinguish different components. Words such as "comprising" or "including" mean that the elements or items appearing before the word cover the elements or items listed after the word and their equivalents, without excluding other elements or items. Words such as "connected" or "coupled" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Upper", "lower", "left", "right", etc. are only used to indicate relative position relationships, and when the absolute position of the object being described changes, the relative position relationship may also change accordingly.

[0021] Please refer to Figure 1 , an engineering hammer for construction engineering, comprising a hammer head 1, a hammer handle 2, a clamping block 5, a bidirectional lead screw 6, and a crank 7.

[0022] Please refer to Figure 1 , in the present utility model, the flat end of the hammer head 1 in the horizontal plane is defined as the front, and the end where the clamping block 5 is located is defined as the rear; the direction in which the clamping block 5 slides is defined as the left-right direction.

[0023] Please refer to Figure 1 、 Figure 3 , on the left and right sides of the bidirectional lead screw 6, there is a section of thread respectively, and the helix directions of the two sections of thread are opposite. The bidirectional lead screw 6 is rotatably connected to the rear end of the hammer head 1, and its rotation axis is along the left-right direction. In one embodiment, a chute 4 is provided at the rear end of the hammer head 1, and the bidirectional lead screw 6 is rotatably connected to the chute 4.

[0024] Please refer to Figure 1 、 Figure 4, the crank 7 is arranged at one end of the bidirectional lead screw 6, and is used to drive the bidirectional lead screw 6 to rotate. In one embodiment, it also includes a connecting block 8 and a limiting component 10, the limiting component 10 is fixedly connected to the hammer head 1, a first through hole is arranged on the limiting component 10 along the left and right directions, the first through hole corresponds to the position of the bidirectional lead screw 6, the first through hole provides a connection position for the bidirectional lead screw 6 and the connecting block 8, the connecting block 8 is a square column, and the connecting block 8 is fixedly connected to the bidirectional lead screw 6 through the first through hole; a square hole is arranged on the crank 7, and the crank 7 is slidably connected to the connecting block 8 along the left and right directions through the square hole, and a limiting block is fixedly arranged on the end of the connecting block 8 away from the bidirectional lead screw 6, which is used to limit the crank 7. A plurality of limiting grooves 11 are arranged inwardly along a circumferential array on the end of the limiting component 10 away from the bidirectional lead screw 6, and when the crank 7 enters the limiting groove 11, the rotation of the crank 7 is limited. With this arrangement, after the worker adjusts the positions of the two clamping blocks 5 by turning the crank 7, the worker pushes the crank 7 into the limiting groove 11 to prevent the two clamping blocks 5 from moving during use. Furthermore, the crank 7 is made of iron, and each limiting groove 11 is fixed with a magnet 12, which attracts the crank 7 and can be separated by manpower. With this arrangement, after the crank 7 enters the limiting groove 11, it is not easy to escape from the limiting groove 11 due to the attraction of the magnet 12.

[0025] See also Figure 2 , the rear end of the clamping block 5 is bent downward, there are two clamping blocks 5, and the clamping blocks 5 slide in the slide groove 4 along the left and right directions. The two clamping blocks 5 are respectively arranged at the threads on the left and right sides of the bidirectional lead screw 6, and each clamping block 5 is fixed with a lead screw nut matching the bidirectional lead screw 6, and the clamping block 5 is arranged on the bidirectional lead screw 6 through the lead screw nut. In one embodiment, the bidirectional lead screw 6 is a trapezoidal lead screw, which is arranged because the trapezoidal lead screw has better self-locking performance. In one embodiment, in the direction of looking down, the two surfaces close to each other on the two clamping blocks 5 are both inclined surfaces, and the closer to the rear end of the hammer head 1, the larger the distance between the two clamping blocks 5. This arrangement can more flexibly adapt to nails of different sizes.

[0026] See also Figure 1 In one embodiment, a sponge sleeve 3 is provided at the lower end of the hammer handle 2. With this arrangement, workers are not likely to get their hands shaken when holding the hammer handle 2 to pull out nails or knock, thereby improving the worker's usage experience.

Claims

1. An engineering hammer for construction projects, comprising a hammer head (1) and a hammer handle (2), characterized in that, Including: Jaw block (5), bi-directional lead screw (6), and crank (7); On the left and right sides of the bi-directional lead screw (6), there is a section of thread respectively, and the helix directions of the two sections of thread are opposite. The bi-directional lead screw (6) is rotatably connected to the rear end of the hammer head (1), and its rotation axis is along the left-right direction; the crank (7) is arranged at one end of the bi-directional lead screw (6) for driving the bi-directional lead screw (6) to rotate; the rear end of the jaw block (5) bends downward. There are two jaw blocks (5), and the jaw blocks (5) slide along the left-right direction at the rear end of the hammer head (1), and the two jaw blocks (5) are respectively arranged at the threads on the left and right sides of the bi-directional lead screw (6).

2. The engineering hammer for construction projects according to claim 1, wherein It further includes a connecting block (8) and a limiting component (10). The limiting component (10) is fixedly connected to the hammer head (1), and a first through hole is arranged on the limiting component (10) along the left-right direction; the connecting block (8) is fixedly connected to the bi-directional lead screw (6), and the crank (7) is slidably connected to the connecting block (8) along the left-right direction; a number of limiting grooves (11) are arranged in a circumferential array at one end of the limiting component (10) far from the bi-directional lead screw (6). When the crank (7) enters the limiting groove (11), the rotation of the crank (7) is restricted.

3. The engineering hammer for construction projects according to claim 2, characterized in that, The material of the crank (7) is iron, and a magnet (12) is fixedly arranged in each limiting groove (11).

4. The engineering hammer for construction projects according to claim 1, characterized in that, The bi-directional lead screw (6) is a trapezoidal lead screw.

5. The engineering hammer for construction projects according to claim 1, characterized in that, In the top view direction, the two mutually approaching surfaces on the two jaw blocks (5) are both inclined surfaces, and the distance between the two jaw blocks (5) is larger the closer it is to the rear end of the hammer head (1).

6. The engineering hammer for construction projects according to claim 1, characterized in that, A sponge sleeve (3) is arranged on the hammer handle (2).

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