Dual-purpose nail hammer for surveying and mapping underground roadway

Abstract

The utility model discloses a dual-purpose nail hammer for underground roadway surveying and mapping, which belongs to the technical field of underground laser surveying and mapping operation, specifically comprises a hammer head, a fixed handle and a telescopic handle, and is characterized in that the telescopic handle is mounted on the outer side of the fixed handle and consists of a fixed part and a plurality of sections of telescopic parts; the telescopic pieces are sequentially and slidably connected together in a sleeved mode to form a telescopic rod body, and the telescopic piece located at the bottom end is slidably inserted into the inner side of the fixing piece. According to the utility model, the handle structure of the traditional nail hammer is improved, and the measuring ruler and the hammer handle are effectively combined, so that the nail hammer has two purposes, and is stable in structure, not influenced by roadway airflow and capable of reducing measurement errors during roadway elevation measurement, thereby improving the surveying and mapping efficiency, reducing the number of tools carried by measurement engineering personnel, and reducing the construction cost. Therefore, the labor intensity of surveying and mapping work is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of underground laser mapping technology, specifically relating to a dual-purpose hammer for underground roadway mapping. Background Technology

[0002] In underground coal mine surveying operations, when measuring the elevation of foresight and backsight traverse points, nails need to be driven into the locations of the foresight and backsight traverse points with a hammer, and a rope is tied to the nails. Then, the rope is passed parallel to a reflector, and a hammer or stone is suspended below the rope so that it hangs freely, making it lie on the same vertical plane as the traverse point on the roadway roof, and the plane of the reflector is perpendicular to the laser lens. Then, the laser of the total station is emitted to the center of the crosshairs of the reflector. The distance from the traverse point on the roof to the horizontal line of the crosshairs of the reflector is measured with a measuring tape as the apparent height of the point. The distance from the traverse point on the roof where the total station is set up to the horizontal line on the total station is measured with a measuring tape as the instrument height of the point. After completing these data measurements, the surveying of the station is completed, and the trigonometric level and coordinates of the point are obtained.

[0003] However, in actual surveying operations, due to the operation of the underground ventilation system, there is significant wind generated by airflow in the underground roadways. The height of the roadways is typically between 2.5 and 3 meters, reaching up to 4 meters at certain points. When using a measuring tape to measure the elevation data of the roadways, the tape itself is extremely prone to shifting or bending under the influence of airflow, often requiring multiple repetitions for each measurement. This is extremely time-consuming and labor-intensive.

[0004] Therefore, we designed a dual-purpose hammer for underground roadway elevation data mapping. Utility Model Content

[0005] The purpose of this invention is to provide a dual-purpose nail hammer for underground roadway surveying, in order to solve the aforementioned problems existing in the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A dual-purpose hammer for underground tunnel surveying includes a hammerhead, a fixed handle, and a telescopic handle. The telescopic handle is installed on the outside of the fixed handle and consists of a fixed component and several telescopic components. The several telescopic components are slidably connected together to form a telescopic rod, and the telescopic component at the bottom end is slidably inserted into the inside of the fixed component.

[0008] Furthermore, the fixed handle includes an assembly end for assembling and fixing with the hammer head. The top of the assembly end is provided with an integrally formed fixing platform. An integrally formed positioning post is provided at the center of the top of the fixing platform. A handle is integrally formed at the center of the end of the positioning post.

[0009] Further, the fixing member comprises a fixing tube, a mounting sleeve is integrally formed at the bottom end of the fixing tube, and the mounting sleeve is fixedly sleeved outside the fixing table; a positioning ring matched with the positioning column is fixed inside the mounting sleeve.

[0010] Further, a first ruler slot is formed on one side wall of the fixing tube, a plurality of first guide slots are equidistantly formed on the inner wall of the fixing tube along the length direction of the fixing tube, and a first retreat stop groove is horizontally formed at the top end of each first guide slot.

[0011] Further, the telescopic member comprises a movable tube, an anti-dropping ring is integrally formed at the bottom end of the movable tube, and guide sliding blocks are integrally formed at the outer part of the anti-dropping ring along the length direction of the movable tube.

[0012] Further, a second ruler slot is formed on the tube wall of the movable tube at a position corresponding to the first ruler slot, and a measuring ruler is integrally formed at one side of the second ruler slot.

[0013] Further, a plurality of second guide slots are equidistantly formed on the inner wall of the movable tube along the length direction of the movable tube, and a second retreat stop groove is horizontally formed at the top end of each second guide slot.

[0014] Further, the positioning column is a straight prism, the positioning column and the positioning ring are combined into a ring-shaped plane at the bottom of the handle, and the inner side of the fixing member and the handle form a ring-shaped storage space for storing a plurality of telescopic members.

[0015] Further, a threaded hole is arranged at the top end of the handle, a screwing end cap is rotationally installed at the end part of the telescopic member located at the top position, and a threaded column for screwing cooperation with the threaded hole is integrally formed at the center position of the screwing end cap.

[0016] Beneficial effects:

[0017] The utility model discloses an improved design of the traditional hammer handle structure, effectively combines the measuring ruler with the hammer handle, makes the hammer realize one object with two uses, when carrying out the roadway elevation measurement, the structure is stable, is not influenced by the airflow of the roadway, can reduce the measurement error, thereby improves the surveying and mapping efficiency, reduces the quantity of the tool of measurement engineering personnel to carry, thereby alleviates the labor intensity of surveying and mapping work. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is the structure schematic diagram of the utility model measuring ruler state;

[0019] Figure 2 It is the section structure schematic diagram of the utility model;

[0020] Figure 3The utility model discloses a fixed handle structure schematic diagram for the utility model;

[0021] Figure 4 The utility model discloses a fixed handle structure schematic diagram for the utility model;

[0022] Figure 5 The utility model discloses a telescopic handle part structure schematic diagram for the utility model;

[0023] Figure 6 The utility model discloses a half cross section structure schematic diagram for the utility model;

[0024] Figure 7 The utility model discloses a hammering state structure schematic diagram for the utility model;

[0025] Figure 8 The utility model discloses a measuring scale state display drawing for the utility model.

[0026] In the drawing: 1, hammer head;2, fixed handle;201, assembly end;202, fixed table;203, positioning column;204, handle knob;3, screw hole;4, telescopic handle;401, fixed piece;411, mounting sleeve;412, fixed tube;413, first scale rod groove;414, positioning ring;415, first guide groove;416, first retreat stop groove;402, telescopic piece;421, anti -drop ring;422, movable tube;423, second scale rod groove;424, measuring scale rod;425, guide sliding block;426, second guide groove;427, second retreat stop groove;5, screw end cap. DETAILED DESCRIPTION

[0027] In order to more clearly illustrate the technical scheme in the embodiment of the utility model or prior art, the following will combine the drawings and the description of embodiment or prior art to the utility model make a simple introduction, obviously, the following regarding the description of the structure of the drawing is only some embodiments of the utility model, for the ordinary skilled person in the art, under the premise of not paying the creative labor, still can obtain other drawings according to these drawings. It needs to be explained here that the explanation of these embodiment modes is used to help understanding the utility model, but does not constitute the limitation to the utility model.

[0028] EMBODIMENT

[0029] For the current coal mine underground surveying operation, due to the operation of the underground ventilation system, there is obvious air flow in the roadway, and the height of the roadway is usually between 2.5-3 meters, and the height of the specific node position can reach 4 meters. When using a tape measure to measure the height data of the roadway, the tape measure itself is easy to deviate or bend under the influence of the air flow, and each data measurement often needs to be repeated several times. It is very time-consuming and laborious, and in the underground surveying operation, due to the limitation of the working environment, the tools need to be carried by the surveying personnel, and each time the tools are carried more. In order to improve the surveying efficiency and accuracy as much as possible and reduce the labor intensity of the workers, the traditional hammer handle structure is improved and designed, and a dual-purpose hammer for underground roadway surveying is proposed, and the specific implementation scheme is as follows:

[0030] As Figures 1-4 shown, the embodiment provides a dual-purpose hammer for underground roadway surveying, which comprises a hammer head 1, a fixed handle 2 and a telescopic handle 4. The fixed handle 2 comprises an assembly end 201 assembled and fixed with the hammer head 1. The top of the assembly end 201 is provided with an integrally formed fixed table 202. The top end of the fixed table 202 is provided with an integrally formed positioning column 203. The end of the positioning column 203 is integrally formed with a handle 204.

[0031] As Figures 1-3 shown, the telescopic handle 4 is installed outside the fixed handle 2. The telescopic handle 4 is composed of a fixed part 401 and a plurality of telescopic parts 402. The plurality of telescopic parts 402 are sequentially and slidably connected to form a telescopic rod body. The telescopic part 402 at the bottom end is slidably connected to the inside of the fixed part 401.

[0032] In order to effectively combine the telescopic handle 4 with the fixed handle 2, so that the hammer can have two different functions after stretching and shrinking, as Figures 5-6 shown, the fixed part 401 comprises a fixed tube 412. The bottom end of the fixed tube 412 is integrally formed with a mounting sleeve 411, which is fixedly sleeved outside the fixed table 202. The inside of the mounting sleeve 411 is fixedly provided with a positioning ring 414 matched with the positioning column 203. In order to avoid rotation of the telescopic handle 4 outside the fixed handle 2, the positioning column 203 adopts a straight prism, and the positioning column 203 and the positioning ring 414 are combined into a ring-shaped plane at the bottom of the handle 204 after cooperation, so that the inside of the fixed part 401 and the handle 204 form a ring-shaped storage space for storing the plurality of telescopic parts 402.

[0033] In order to effectively cooperate with the telescopic part 402, a first ruler slot 413 is formed on one side wall of the fixed tube 412, and a plurality of first guide slots 415 are formed on the inner wall of the fixed tube 412 at equal intervals along the length direction of the fixed tube 412, and a first retreat-preventing slot 416 is horizontally formed at the top of each first guide slot 415 around the circumference of the fixed tube 412.

[0034] The telescopic part 402 includes a movable tube 422, and the bottom end of the movable tube 422 is integrally formed with an anti-disengagement ring 421, and the outer part of the anti-disengagement ring 421 is integrally formed with a guide sliding block 425 at equal intervals along the length direction of the movable tube 422.

[0035] In order to facilitate the barrier-free telescopic action of the plurality of telescopic parts 402, a second ruler slot 423 is formed on the wall of the movable tube 422 at a position corresponding to the first ruler slot 413, and a measuring ruler 424 is integrally formed on one side of the second ruler slot 423, and a scale is arranged on the surface of each measuring ruler 424 and the surface of the fixed tube 412 on the same side as the measuring ruler 424, and after the telescopic handle 4 is fully extended, the fixed part 401 and the scales on all the telescopic parts 402 are combined to form a complete ruler.

[0036] In order to quickly align and assemble the measuring rulers 424 on each telescopic part 402 after the telescopic handle 4 is fully extended, a plurality of second guide slots 426 are formed on the inner wall of the movable tube 422 at equal intervals along the length direction of the movable tube 422, and a second retreat-preventing slot 427 is horizontally formed at the top of each second guide slot 426 around the circumference of the movable tube 422.

[0037] It should be further explained that the diameters of the plurality of telescopic parts 402 are designed to decrease from large to small, and the wall thickness of the fixed tube 412 is the same as the wall thickness of the movable tube 422 of each telescopic part 402; the inner wall of the movable tube 422 of the topmost telescopic part 402 is adapted to the outer diameter of the handle 204, and the outer diameter of the movable tube 422 of the bottommost telescopic part 402 is adapted to the inner diameter of the fixed tube 412, such as Figure 8As shown, in order to distinguish, each telescopic piece 402 is marked with A, B, C, D, E, F, G. As an example, the outer diameter of B telescopic piece 402 is adapted to the inner diameter of A telescopic piece 402. Meanwhile, the width of the first ruler slot 413 on the fixed tube 412 is the sum of the widths of the measuring rulers 424 on all telescopic pieces 402. The width of the second ruler slot 423 on each telescopic piece 402 decreases by one measuring ruler 424 from A telescopic piece 402 to G telescopic piece 402. After the telescopic handle 4 is contracted, the measuring rulers 424 on each telescopic piece 402 can fill the first ruler slot 413, so that the surface of the telescopic handle 4 is flat after contraction.

[0038] Meanwhile, the height of the measuring ruler 424 on A telescopic piece 402 is consistent with the wall thickness of the fixed tube 412. The height of the measuring ruler 424 on each telescopic piece 402 increases by one height consistent with the wall thickness of the fixed tube 412 from B telescopic piece 402 to G telescopic piece 402. This design ensures that the surfaces of all measuring rulers 424 are flush with the surface of the fixed tube 412, so that the surface of the telescopic handle 4 can remain flat after contraction.

[0039] Meanwhile, the position of the guide slider 425 on the lowest telescopic piece 402 is consistent with and slidingly fitted with the position of the first guide slot 415 on the inner wall of the fixed tube 412. When the adjacent telescopic pieces 402 are slidingly fitted, as an example, the guide slider 425 on the upper end position of B telescopic piece 402 is slidingly fitted with the second guide slot 426 on the inner wall of the lower end position A telescopic piece 402, and the same applies to B telescopic piece 402 and C telescopic piece 402, C telescopic piece 402 and D telescopic piece 402, etc.

[0040] In order to ensure that each telescopic piece 402 can quickly complete the butt joint assembly of the measuring ruler 424 after expansion, the groove length of the first and second stop grooves 416 and 427 is consistent with the width of the measuring ruler 424.

[0041] As shown, Figures 6-7 In order to prevent the telescopic handle 4 from accidentally expanding after contraction, and also to improve the fit between the telescopic handle 4 and the fixed handle 2, a threaded hole 3 is provided at the top end of the handle 204. A screw end cap 5 is rotatably installed at the end of the telescopic piece 402 at the top position. A threaded column for screwing with the threaded hole 3 is integrally formed at the center position of the screw end cap 5.

[0042] It should be explained finally: above described only is preferred embodiment of the utility model, and is not for limiting the protection scope of the utility model. Any modification, equivalent replacement, improvement etc. that is made within the spirit and principle of the utility model, should be contained in the protection scope of the utility model.

Claims

1. A dual-purpose hammer for underground tunnel surveying, comprising a hammer head (1), a fixed handle (2), and a telescopic handle (4), characterized in that, The telescopic handle (4) is installed on the outside of the fixed handle (2). The telescopic handle (4) consists of a fixed part (401) and several telescopic parts (402). Several telescopic parts (402) are slidably connected together to form a telescopic rod body. The telescopic part (402) at the bottom end is slidably inserted into the inside of the fixed part (401).

2. The dual-purpose hammer for underground tunnel surveying according to claim 1, characterized in that, The fixed handle (2) includes an assembly end (201) that is assembled and fixed with the hammer head (1). The top of the assembly end (201) is provided with an integrally formed fixed platform (202). The center of the top of the fixed platform (202) is provided with an integrally formed positioning post (203). The center of the end of the positioning post (203) is integrally formed with a handle (204).

3. The dual-purpose nail hammer for underground tunnel surveying according to claim 1, characterized in that, The fixing component (401) includes a fixing tube (412), and an installation sleeve (411) is integrally formed at the bottom end of the fixing tube (412). The installation sleeve (411) is fixedly fitted on the outside of the fixing platform (202). A positioning ring (414) that cooperates with the positioning column (203) is fixed inside the installation sleeve (411).

4. A dual-purpose nail hammer for underground tunnel surveying according to claim 3, characterized in that, A ruler groove (413) is provided on one side of the fixed tube (412). A number of guide grooves (415) are provided at equal intervals around the inner wall of the fixed tube (412) along the length of the fixed tube (412). At the top of each guide groove (415), a first anti-reverse groove (416) designed in the same direction is provided horizontally around the circumference of the fixed tube (412).

5. A dual-purpose nail hammer for underground tunnel surveying according to claim 1, characterized in that, The telescopic component (402) includes a movable tube (422), and an anti-detachment ring (421) is integrally formed at the bottom end of the movable tube (422). Guide sliders (425) are integrally formed at equal intervals along the length direction of the movable tube (422) on the outside of the anti-detachment ring (421).

6. A dual-purpose hammer for underground tunnel surveying according to claim 5, characterized in that, A second ruler groove (423) is provided on the wall of the movable tube (422) at a position corresponding to the first ruler groove (413), and a measuring ruler (424) is integrally formed on one side of the second ruler groove (423).

7. A dual-purpose nail hammer for underground tunnel surveying according to claim 6, characterized in that, The inner wall of the movable tube (422) is provided with several second guide grooves (426) at equal intervals along the length of the movable tube (422) around the circumference. The top of each second guide groove (426) is provided with a second anti-reverse groove (427) designed in the same direction around the circumference of the movable tube (422).

8. A dual-purpose nail hammer for underground tunnel surveying according to claim 2, characterized in that, The positioning post (203) is a straight prism. After the positioning post (203) and the positioning ring (414) are engaged, they form an annular plane at the bottom of the handle (204). The inner side of the fixing member (401) and the handle (204) form an annular storage space for storing several telescopic members (402).

9. A dual-purpose nail hammer for underground tunnel surveying according to claim 2, characterized in that, The top of the handle (204) is provided with a threaded hole (3), and the end of the telescopic member (402) located at the top position is rotatably mounted with a screw cap (5). The center of the screw cap (5) is integrally formed with a threaded post for screwing into the threaded hole (3).

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