Inspection hammer

Abstract

The utility model provides an inspection hammer, and belongs to the field of boiler inspection. An inspection hammer comprises a handle, two sliding strips are arranged on the handle in a sliding fit mode, two springs are fixedly installed between the two sliding strips and the handle, two guide assemblies used for guiding the two sliding strips respectively are arranged in the handle in a sliding fit mode, and a sliding seat is arranged in the handle in a sliding fit mode. Two elastic strips used for limiting the sliding seat are fixedly installed in the handle, the two sliding strips correspond to the two elastic strips respectively, and a hammer head is fixedly installed at one end of the sliding seat. Through the arrangement of the sliding seat, the hammer can slide in the handle, so that the sliding seat can drive the hammer head to slide, the size of the hammer can be reduced after the sliding seat and the hammer head slide, and the hammer is more convenient to carry due to the fact that the size of the hammer can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of boiler inspection, and particularly relates to an inspection hammer. Background Technique

[0002] A boiler is a pressure vessel with water or organic heat carrier as the medium. During the operation of the boiler, under the action of high-temperature and high-pressure water-vapor medium on the pressure-bearing components, and under the radiation of external high-temperature flame or the scouring of flue gas, corrosion, deformation, wear, scaling, overheating, leakage and other phenomena may occur. More seriously, tube explosion or even explosion accidents may occur. According to the provisions of the "Interim Regulations on the Safety Supervision of Boilers and Pressure Vessels", boilers need to be inspected regularly to ensure the safety of the boilers. The commonly used inspection methods include the hammering inspection method.

[0003] In the prior art, for example, an inspection hammer for boiler inspection with the publication number of CN208713879U includes a hammer head, a narrow hammer handle and a wide hammer handle. The left end of the hammer head is fixedly connected with the narrow hammer handle. The central position at the left end of the narrow hammer handle is fixedly connected with a threaded rod. The outside of the threaded rod is provided with a wide hammer handle. A straight ruler is fixedly connected to the front end face of the wide hammer handle, and a vernier caliper is fixedly connected to the rear end face of the wide hammer handle. By setting the straight ruler, the vernier caliper and the undercut ruler, the inspection hammer, the straight ruler and the weld inspection ruler are combined into one, which can not only avoid carrying too many devices, increase the convenience of the inspection work, but also is not easy to fall off. However, an inspection hammer for boiler inspection in the prior art has the problem that it cannot be retracted, resulting in a relatively large volume and inconvenient to carry. Therefore, an inspection hammer is proposed. Content of the Utility Model

[0004] In view of this, the embodiments of the present utility model hope to provide an inspection hammer to solve or alleviate the technical problems existing in the prior art. By installing a sliding seat, it can slide inside the handle, so that the sliding seat can drive the hammer head to slide. After the sliding seat and the hammer head slide, the volume of the hammer can be retracted. Because the volume of the hammer can be retracted, it is more convenient to carry the hammer.

[0005] The technical solution of the embodiments of the present utility model is realized as follows:

[0006] A inspection hammer, comprising a handle, two sliding bars are slidably fitted on the handle, two springs are fixedly installed between the two sliding bars and the handle, two sets of guiding components for guiding the two sliding bars respectively are slidably fitted in the handle, a sliding seat is slidably fitted in the handle, two elastic strips for limiting the sliding seat are fixedly installed inside the handle, the two sliding bars correspond to the two elastic strips respectively, a hammer head is fixedly installed at one end of the sliding seat, two striking heads are slidably fitted in the hammer head, and a limiting strip for limiting the two striking heads is slidably fitted in the hammer head.

[0007] Preferably: The hammer head is of a T-shaped structure, a bolt for limiting the limiting strip is threadedly fitted inside the hammer head, a threaded hole corresponding to the bolt is opened on one side of the hammer head, one end of the bolt penetrates through the limiting strip, and the installation of the bolt can fix the limiting strip, so that the limiting strip is not easily separated from the hammer.

[0008] Preferably: Two first guiding grooves for guiding the two striking heads are opened on the hammer head, second guiding grooves for accommodating the upper and lower ends of the limiting strip are opened at the upper and lower ends of the hammer head, and the striking head is of an inverted T-shaped structure. The installation of the striking head facilitates the striking of the boiler.

[0009] Preferably: One end of the striking head is slidably fitted in the first guiding groove, the upper and lower ends of the limiting strip are slidably fitted in the second guiding groove, a striking end is arranged on the striking head, and the hammer head is fixedly connected to the sliding seat by welding. The arrangement of the striking end facilitates the striking head to strike the boiler.

[0010] Preferably: A third guiding groove for guiding the sliding seat is opened on the handle, a plurality of serrated notches are opened on both the upper and lower sides of the sliding seat, triangular protrusions corresponding to the serrated notches are arranged on the elastic strip, and a limiting protrusion for limiting the sliding seat is arranged at one end of the sliding seat. The opening of the serrated notches facilitates the triangular protrusions to limit and fix the sliding seat.

[0011] Preferably: The guiding component includes four guiding columns slidably fitted inside the handle, and the two springs are located between the four guiding columns. The installation of the guiding columns can guide the sliding bars during the sliding process, so that the sliding bars slide more smoothly.

[0012] Since the embodiments of the present invention adopt the above technical solutions, it has the following advantages:

[0013] 1. By installing a sliding seat, the present utility model can slide inside the handle, so that the sliding seat can drive the hammer head to slide. After the sliding seat and the hammer head slide, the volume of the hammer can be contracted. Since the volume of the hammer can be contracted, it is more convenient to carry the hammer.

[0014] 2. By installing a limiting strip, the present utility model can limit and fix the striking head, so that the striking head can be quickly replaced when it is not limited and fixed, which makes it more convenient to replace the striking head of the hammer.

[0015] The above summary is only for the purpose of the specification and is not intended to be limiting in any way. In addition to the above-described illustrative aspects, embodiments and features, further aspects, embodiments and features of the present utility model will be readily apparent by reference to the drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0017] Figure 1 is a three-dimensional structure diagram of the present utility model;

[0018] Figure 2 is a sectional structure diagram of the present utility model;

[0019] Figure 3 is a spring structure diagram of the present utility model;

[0020] Figure 4 is a partial structure diagram of the present utility model.

[0021] Reference numerals: 1, handle; 2, sliding strip; 3, spring; 4, guiding assembly; 5, sliding seat; 6, elastic strip; 7, hammer head; 8, striking head; 9, limiting strip; 10, bolt; 11, guiding column; 101, third guiding groove; 501, serrated notch; 502, limiting projection; 601, triangular projection; 701, first guiding groove; 702, second guiding groove; 801, striking end. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] In the following text, only some exemplary embodiments are simply described. As those skilled in the art can recognize, the described embodiments can be modified in various different ways without departing from the spirit or scope of the present utility model. Therefore, the drawings and the description are considered to be exemplary in nature rather than restrictive.

[0023] The embodiments of the present utility model will be described in detail below with reference to the accompanying drawings.

[0024] As Figures 1-4 shown, an inspection hammer is provided in an embodiment of the present utility model, including: a handle 1, two sliding strips 2 are slidably and cooperatively arranged on the handle 1, two springs 3 are fixedly installed between the two sliding strips 2 and the handle 1 respectively, two guiding assemblies 4 for guiding the two sliding strips 2 respectively are slidably and cooperatively arranged in the handle 1, a sliding seat 5 is slidably and cooperatively arranged in the handle 1, two elastic strips 6 for limiting the sliding seat 5 are fixedly installed inside the handle 1, the two sliding strips 2 respectively correspond to the two elastic strips 6, a hammer head 7 is fixedly installed at one end of the sliding seat 5, two striking heads 8 are slidably and cooperatively arranged in the hammer head 7, and a limiting strip 9 for limiting the two striking heads 8 is slidably and cooperatively arranged in the hammer head 7.

[0025] In this embodiment, specifically: the hammer head 7 is of a T-shaped structure, a bolt 10 for limiting the limiting strip 9 is threadedly and cooperatively arranged inside the hammer head 7, a threaded hole corresponding to the bolt 10 is opened on one side of the hammer head 7, one end of the bolt 10 penetrates through the limiting strip 9, and the opening of the threaded hole facilitates the installation of the bolt 10.

[0026] In this embodiment, specifically: two first guiding grooves 701 for guiding the two striking heads 8 are opened on the hammer head 7, second guiding grooves 702 for accommodating the upper and lower ends of the limiting strip 9 are opened at the upper and lower ends of the hammer head 7, the striking head 8 is of an inverted T-shaped structure, and the opening of the second guiding grooves 702 facilitates the accommodation of the limiting strip 9.

[0027] In this embodiment, specifically: one end of the striking head 8 is slidably and cooperatively arranged in the first guiding groove 701, the upper and lower ends of the limiting strip 9 are slidably and cooperatively arranged in the second guiding grooves 702, a striking end 801 is arranged on the striking head 8, the hammer head 7 is fixedly connected to the sliding seat 5 by welding, and the installation of the limiting strip 9 facilitates the fixation of the two striking heads 8.

[0028] In this embodiment, specifically: a third guiding groove 101 for guiding the sliding seat 5 is opened on the handle 1, a plurality of sawtooth notches 501 are opened on both the upper and lower sides of the sliding seat 5, triangular protrusions 601 corresponding to the sawtooth notches 501 are arranged on the elastic strip 6, a limiting protrusion 502 for limiting the sliding seat 5 is arranged at one end of the sliding seat 5, and the arrangement of the triangular protrusions 601 facilitates the fixation of the sliding seat 5.

[0029] In this embodiment, specifically: The guiding component 4 includes four guiding columns 11 that are slidably fitted inside the handle 1. Two springs 3 are located between the four guiding columns 11. The installation of the handle 1 facilitates the worker to pick up the hammer. When the hammer is in use, the worker then tightly holds the handle 1 and the two sliding strips 2. The two sliding strips 2 squeeze the two elastic strips 6. After being squeezed, the two elastic strips 6 are deformed, and then the two elastic strips 6 fix the sliding seat 5. At this time, the sliding seat 5 is not easy to slide.

[0030] When the present utility model is working: When the hammer needs to be retracted, the force of tightly holding the sliding strip 2 is released. Then the spring 3 pushes the two sliding strips 2 to slide away from each other. At this time, the two elastic strips 6 no longer continue to limit and fix the sliding seat 5. Then the hammer head 7 part is moved upward to keep the hammer in a vertical state. Due to the action of gravity, the hammer head 7 and the sliding seat 5 slide into the handle 1. At this time, the hammer head 7 and the sliding seat 5 slide and retract. At this time, the hammer is retracted, and the volume of the hammer is reduced.

[0031] When the striking head 8 needs to be disassembled, the limiting strip 9 is pushed to disengage from the hammer head 7. At this time, the limiting strip 9 no longer continues to limit the striking head 8. Then the striking head 8 is pushed to disengage from the hammer head 7. At this time, the striking head 8 is detached from the hammer head 8, and then the striking head 8 is replaced.

[0032] The above is only the specific implementation manner of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model can easily think of various changes or substitutions thereof, and these should all be covered within the protection scope of the present utility model. Therefore, the protection scope of the present utility model should be subject to the protection scope of the claimed rights.

Claims

1. A test hammer, comprising a handle (1), characterized in that: The handle (1) is provided with two sliding bars (2) in a sliding cooperation, two springs (3) are fixedly installed between the two sliding bars (2) and the handle (1), two groups of guide components (4) are provided in a sliding cooperation inside the handle (1) for guiding the two sliding bars (2) respectively, and a sliding seat (5) is provided in a sliding cooperation inside the handle (1); Two elastic strips (6) for limiting the position of the sliding seat (5) are fixedly installed inside the handle (1), and the two sliding strips (2) correspond to the two elastic strips (6) respectively. A hammer head (7) is fixedly installed at one end of the sliding seat (5), and two striking heads (8) are slidably arranged inside the hammer head (7), and a limiting strip (9) for limiting the position of the two striking heads (8) is slidably arranged inside the hammer head (7).

2. A test hammer according to claim 1, characterized in that: The hammer head (7) is of a T-shaped structure. The internal thread of the hammer head (7) is provided with a bolt (10) for limiting the position of the limiting strip (9). A threaded hole corresponding to the bolt (10) is provided on one side of the hammer head (7). One end of the bolt (10) passes through the limiting strip (9).

3. A test hammer according to claim 2, characterized in that: The hammer head (7) is provided with two first guide grooves (701) for guiding the two striking heads (8); the upper and lower ends of the hammer head (7) are provided with second guide grooves (702) for accommodating the upper and lower ends of the limit strip (9); and the striking head (8) is an inverted T-shaped structure.

4. A test hammer according to claim 3, characterized in that: One end of the striking head (8) is slidably arranged in the first guide groove (701), and the upper and lower ends of the limit strip (9) are slidably arranged in the second guide groove (702). The striking head (8) is provided with a striking end (801), and the hammer head (7) is fixedly connected to the sliding seat (5) by welding.

5. A test hammer according to any one of claims 1 to 4, characterized in that: The handle (1) is provided with a third guide groove (101) for guiding the sliding seat (5), the sliding seat (5) is provided with a plurality of sawtooth notches (501) on both upper and lower sides, the elastic strip (6) is provided with triangular protrusions (601) corresponding to the sawtooth notches (501), and one end of the sliding seat (5) is provided with a limiting protrusion (502) for limiting the sliding seat (5).

6. A test hammer according to claim 5, characterized in that: The guide assembly (4) comprises four guide posts (11) which are slidably arranged inside the handle (1), and two springs (3) are located between the four guide posts (11).

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