Drop hammer for mine survey

Abstract

The invention discloses a drop hammer for mine survey, which relates to the technical field of measuring tools, and is characterized by comprising a drop hammer and a first suspension wire, and the first suspension wire is connected with the center of the top end of the drop hammer; two rotating rods are rotatably mounted on the drop hammer, the two rotating rods are symmetrically distributed at the top end of the drop hammer, a rotating block is rotatably mounted at one end of each rotating rod, a second mounting hook is fixedly mounted on each rotating block, and a second suspension wire is mounted on each second mounting hook; an adjusting assembly is installed at the top end of the drop hammer, the adjusting assembly can enable the two rotating rods to rotate, the drop hammer is pulled through the two second suspension wires, movement of the drop hammer is limited, the drop hammer has higher stability, and the drop hammer can tend to be stable more quickly in the shaking state.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of measuring tools, in particular to a mine surveying plumb bob. BACKGROUND

[0002] In mine surveying, a plumb bob is usually used. The plumb bob is used to detect whether the surface of an object is vertical or directly used to straighten. In the process of measurement, the height is usually high, and the plumb bob line needs to be long. After the plumb bob reaches the specified point, the plumb bob needs to be kept stable. It takes a long time to wait for the plumb bob to be stable, and when the wind is strong, the plumb bob is difficult to keep stable. Therefore, in order to solve the above technical problems, the present application provides a mine surveying plumb bob. SUMMARY

[0003] In view of the deficiencies of the prior art, the present application provides a mine surveying plumb bob.

[0004] To achieve the above object, the present application provides the following technical scheme: a mine surveying plumb bob, comprising a plumb bob and a first plumb line, the first plumb line is connected with the center of the top end of the plumb bob; Two rotating rods are rotatably installed on the plumb bob, the two rotating rods are symmetrically distributed at the top end of the plumb bob, a rotating block is rotatably installed at one end of each rotating rod, a second installation hook is fixedly installed on the rotating block, and a second plumb line is installed on each second installation hook; An adjusting assembly is installed on the top end of the plumb bob, which can rotate the two rotating rods.

[0005] Preferably, the adjusting assembly comprises a threaded rod, an extension rod and a threaded block; The bottom end of the threaded rod is detachably installed at the center of the top end of the plumb bob, a through hole is formed in the threaded rod for the first plumb line to pass through, the threaded block is threadedly sleeved on the outer surface of the threaded rod, and the movable end of the extension rod is rotatably connected with one end of the rotating rod.

[0006] Preferably, a fixed plate is fixedly installed on the bottom end of the threaded rod, a square groove is formed in the top end of the plumb bob, and the fixed plate is fixedly connected with the plumb bob by a plurality of bolts.

[0007] Compared with the prior art, the present application provides a mine surveying plumb bob, which has the following beneficial effects: Two rotating rods are rotatably installed on the plumb bob, the two rotating rods are symmetrically distributed at the top end of the plumb bob, a rotating block is rotatably installed at one end of each rotating rod, a second installation hook is fixedly installed on the rotating block, and a second plumb line is installed on each second installation hook, which utilizes two second plumb lines to hold the plumb bob, limits the movement of the plumb bob, and makes the plumb bob have higher stability. The plumb bob can also be more quickly stabilized in a shaking state.

[0008] The above description is merely an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention and to implement it according to the contents of the specification, the preferred embodiments of the present invention are described in detail below with reference to the accompanying drawings. Specific embodiments of the present invention are given in detail below with reference to the accompanying drawings. Attached Figure Description

[0009] The accompanying drawings, which are included to provide a further understanding of the invention and form part of this application, illustrate exemplary embodiments of the invention and, together with their description, serve to explain the invention and do not constitute an undue limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the structure of the hammer, threaded rod, rotating rod, and rotating rod in this invention; Figure 3 This is a schematic diagram showing the disassembled structure of the plumb bob and the adjusting assembly in this invention; Figure 4 This is a schematic diagram of the structure of the rotating rod, telescopic rod, and threaded block in this invention.

[0010] In the diagram: 1. Plumb bob; 2. First suspension line; 3. Second suspension line; 4. Threaded rod; 5. First mounting hook; 6. Fixing plate; 7. Bolt; 8. Rotating rod; 9. Telescopic rod; 10. Threaded block; 11. Rotating block; 12. Second mounting hook; 13. Through hole; 14. Second winding wheel; 15. Guide wheel; 16. First winding wheel. Detailed Implementation

[0011] The following is in conjunction with the appendix Figures 1 to 4 The principles and features of the present invention are described below. The examples given are for illustrative purposes only and are not intended to limit the scope of the invention. The invention is described more specifically in the following paragraphs by way of example with reference to the accompanying drawings. It should be noted that the drawings are in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of the invention.

[0012] It should be noted that when a component is described as "fixed to" another component, it can be directly on the other component or may have a component in between. When a component is considered "connected to" another component, it can be directly connected to the other component or may have a component in between. When a component is considered "set on" another component, it can be directly set on the other component or may have a component in between. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0013] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description herein is for describing particular embodiments only and is not intended to be limiting of the application. The use herein of the terms "including", "comprising", "having" and the like are meant to encompass the items listed thereafter as well as other items.

[0014] Please combine Figures 1 to 4 As shown in the figure, the present application provides a mine surveying plumb bob, the top end center of the plumb bob 1 is fixedly installed with a first installation hook 5, one end of a first lifting line 2 is fixedly connected with the first installation hook 5; Two rotating rods 8 are rotatably installed on the plumb bob 1, the two rotating rods 8 are symmetrically distributed at the top end of the plumb bob 1, a rotating block 11 is rotatably installed at one end of each rotating rod 8, a second installation hook 12 is fixedly installed on the rotating block 11, and a second lifting line 3 is installed on each second installation hook 12; The other end of the first lifting line 2 is provided with a first winding wheel 16, and the first lifting line 2 is wound on the first winding wheel 16; one end of each second lifting line 3 is provided with a second winding wheel 14 and a pressure sensor 15, and the second lifting line 3 is wound on the second winding wheel 14; during measurement, the plumb bob 1 is mainly hung by the first lifting line 2, and the two second lifting lines 3 are always in a taut state; the second winding wheel 14 and the first winding wheel 16 can be driven by motors respectively, the motors are not shown in the figure, one motor drives the first winding wheel 16 to rotate to release the first lifting line 2, and the other motor drives the second winding wheel 14 to rotate to release the second lifting line 3; the pressure sensor 15 senses the tension of the second lifting line 3, the tension is less than one fourth of the gravity of the plumb bob 1, and after the first lifting line 2 and the second lifting line 3 are both released, the two second lifting lines 3 can prevent the plumb bob 1 from rotating, and can quickly keep the plumb bob 1 stable, even in the case of wind, the plumb bob 1 is not easy to shake; A threaded rod 4 is detachably installed on the top end of the plumb bob 1, a through hole 13 for the first lifting line 2 to pass through is formed in the threaded rod 4, a threaded block 10 is threadedly installed on the outer surface of the threaded rod 4, an extension rod 9 is fixedly installed on the threaded block 10, and a movable end of the extension rod 9 is rotatably connected with one end of the rotating rod 8; The top end of the threaded rod 4 can be rotated to move the threaded block 10 in the axial direction of the threaded rod 4, and the two rotating rods 8 can be rotated in the process of the extension rod 9 rising or falling, and the distance between the two rotating blocks 11 is changed after the two rotating rods 8 are rotated; when the distance between the two second lifting lines 3 is closer, smaller measurement space can be coped with, and when the space is larger, the distance between the two second lifting lines 3 can be increased, so that the plumb bob 1 has higher stability, and the plumb bob 1 can be more quickly stabilized in a shaking state.

[0015] The bottom end of the threaded rod 4 is fixedly provided with a fixed plate 6, and the top end of the weight 1 is provided with a square slot matched with the fixed plate 6. The fixed plate 6 is fixedly connected with the weight 1 through a plurality of bolts 7. When the first lifting line 2 is damaged, the plurality of bolts 7 can be removed, and the new first lifting line 2 can be connected with the first mounting hook 5 after the first mounting hook 5 is exposed.

[0016] The above is only a preferred embodiment of the present application, and does not limit the present application in any form. Any person skilled in the art can easily implement the present application according to the drawings and the above description. However, any equivalent changes, modifications and evolutions made by those skilled in the art within the scope of the technical solutions of the present application, using the above disclosed technical content, are equivalent embodiments of the present application. Meanwhile, any equivalent changes, modifications and evolutions made according to the essential technology of the above embodiments are still within the protection scope of the technical solutions of the present application.

Claims

1. A plumb bob for mining surveying, comprising a plumb bob (1) and a first plumb line (2), wherein the first plumb line (2) is connected to the center of the top end of the plumb bob (1), characterized in that: Two rotating rods (8) are rotatably mounted on the hammer (1). The two rotating rods (8) are symmetrically distributed at the top of the hammer (1). A rotating block (11) is rotatably mounted at one end of each rotating rod (8). A second mounting hook (12) is fixedly mounted on the rotating block (11). A second hanging line (3) is mounted on each of the second mounting hooks (12). An adjustment assembly is installed on the top of the hammer (1), which enables the two rotating rods (8) to rotate.

2. The plumb bob for mining surveying according to claim 1, characterized in that: The adjustment assembly includes a threaded rod (4), a telescopic rod (9), and a threaded block (10). The bottom end of the threaded rod (4) is detachably installed at the top center of the hammer (1). The threaded rod (4) has a through hole (13) for the first suspension line (2) to pass through. The threaded block (10) is threaded on the outer surface of the threaded rod (4). The movable end of the telescopic rod (9) is rotatably connected to one end of the rotating rod (8).

3. The plumb bob for mining surveying according to claim 2, characterized in that: A fixing plate (6) is fixedly installed on the bottom end of the threaded rod (4), and a square groove adapted to the fixing plate (6) is opened on the top end of the hammer (1). The fixing plate (6) is fixedly connected to the hammer (1) by multiple bolts (7).

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