Adjustable coal mine mining height scale

Abstract

The utility model relates to the technical field of mining height scales, in particular to an adjustable coal mine mining height scale which comprises a mounting plate, the top end of the mounting plate is connected with a fixing seat, the fixing seat is rotatably connected with a connecting sleeve, the connecting sleeve is a cylinder, the interior of the connecting sleeve is rotatably connected with a connecting rod through threads, and the connecting rod and the connecting sleeve are coaxial. A guide rod is coaxially and slidably connected into the connecting rod, the bottom of the guide rod penetrates through the connecting sleeve to be fixedly connected with the fixing base, and rectangular protrusions inserted into the connecting rod are arranged on the two sides of the guide rod. Scales arranged in the axial direction are engraved on the peripheral face of the connecting sleeve, and a reflective ruler sticker arranged in the axial direction is arranged on the peripheral face of the connecting rod. According to the height measuring device, the using length of the connecting rod can be flexibly adjusted according to requirements, height measurement is carried out through the effect of the reflective scale sticker on the peripheral face of the connecting rod, use is convenient, and the occupied space is small when the height measuring device is stored.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of coal mining height scale, specifically relates to an adjustable coal mining height scale. BACKGROUND

[0002] The coal mining height scale is a professional tool for measuring the coal mining height (also known as the coal mining height), which plays a crucial role in the coal mining operation. The coal mining height, simply put, refers to the vertical distance between the bottom and the top of the mine. In order to accurately grasp this key data, the coal mining height scale is designed as a measuring tool with fine scale, which can accurately measure the coal mining height distance. Through such measurement, miners can clearly understand the height of the mine layer inside the mine, and thus ensure that the coal mining operation can be carried out in a safe and efficient environment.

[0003] The utility model patent with patent authorization announcement number CN204267055U discloses a normal mining height indicating scale for coal mine hydraulic support, which comprises an inner tube, an outer tube and a pipe joint. The outer wall of the inner tube is attached with a reflective scale strip, and the reflective scale strip is provided with a scale that increases from top to bottom.

[0004] However, the above-mentioned coal mining height scale is inconvenient to adjust the use length of the mining height scale in the use process due to the influence of different use environments, which limits its applicability to a certain extent. In addition, when the scale is not needed, the design lacks a convenient storage mechanism, which also brings certain inconvenience to carrying and storage. UTILITY MODEL CONTENTS

[0005] In order to solve the technical problems of the coal mining height scale in the prior art, which is inconvenient to adjust the use length of the mining height scale in the use process due to the influence of different use environments, has insufficient applicability, and is not convenient to store, the utility model provides an adjustable coal mining height scale.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the technical scheme that:

[0007] An adjustable coal mining height scale, comprising a mounting plate, a fixed seat connected to the top end of the mounting plate, a connecting sleeve rotationally connected to the fixed seat, the connecting sleeve being a cylinder, a connecting rod rotationally connected to the inside of the connecting sleeve through threads, the connecting rod being coaxial with the connecting sleeve, a guide rod coaxially and slidingly connected to the inside of the connecting rod, the bottom of the guide rod being fixedly connected to the fixed seat through the connecting sleeve, rectangular protrusions on both sides of the guide rod being inserted into the connecting rod; the outer periphery of the connecting sleeve is marked with a scale arranged in the axial direction, and the outer periphery of the connecting rod is provided with a reflective scale sticker arranged in the axial direction.

[0008] With the above structure, the connecting sleeve is rotated, the connecting rod cannot be rotated under the action of the guide rod and the rectangular protrusion, and the connecting rod can be raised or lowered because the connecting rod is threadedly connected with the connecting sleeve, so that the connecting rod can axially move relative to the connecting sleeve and the guide rod. Therefore, the length of the connecting rod can be flexibly adjusted according to requirements, the height can be measured through the action of the reflective scale sticker on the outer circumferential surface of the connecting rod, the use is convenient, and the space occupied during storage is small.

[0009] As a preferred implementation manner of the adjustable coal mining height scale, the outer part of the connecting sleeve is provided with an adjusting mechanism, the adjusting mechanism comprises a plurality of fixing blocks, the fixing blocks are fixedly connected to the outer circumferential surface of the connecting sleeve, the fixing blocks are arranged around the outer circumferential surface of the connecting sleeve, the fixing blocks are connected with the same rotating handle, and the rotating handle is sleeved on the outer circumferential surface of the connecting sleeve.

[0010] With the above structure, the rotating handle is held and rotated to rotate the connecting sleeve, and the rotating operation is convenient and labor-saving.

[0011] As a preferred implementation manner of the adjustable coal mining height scale, the adjusting mechanism is provided with a locking mechanism, the locking mechanism comprises an insertion rod axially parallel to the connecting sleeve, the bottom end of the insertion rod is inserted into a hollow slot in a fixed seat, the bottom end of the insertion rod is connected with a sliding block, the sliding block is slidably connected with the hollow slot in the axial direction of the insertion rod, the outer part of the sliding block extends out of the hollow slot and is connected with a connecting block, the connecting block is slidably connected with the fixed seat in the axial direction of the insertion rod, and the outer part of the connecting block is connected with a pull rod; the hollow slot is provided with a fixed rod axially parallel to the insertion rod, the fixed rod is slidably connected with the sliding block in the axial direction of the insertion rod, the outer circumferential surface of the fixed rod is provided with a spring, one end of the spring is fixed with the sliding block, the other end of the spring is connected with the bottom of the hollow slot, the bottom of the sliding block is provided with an upper magnet, the bottom of the hollow slot is provided with a lower magnet, and the upper magnet and the lower magnet can be magnetically connected; the bottom of the rotating handle is provided with a plurality of insertion slots in the circumferential direction, and the top end of the insertion rod can be slidably inserted into or out of the insertion slots in the axial direction.

[0012] With the above structure, the insertion rod is inserted into the insertion slot upward to limit the rotation of the rotating handle and the connecting sleeve, so that the length of the reflective scale sticker can be locked after the use height is adjusted, and the stability of the reflective scale sticker during use is avoided from being affected by the rotation of the connecting sleeve caused by accidental touch.

[0013] As a preferred implementation manner of the adjustable coal mining height scale, the outer circumferential surface of the connecting rod is provided with an arc-shaped movable groove, a ball is movably sleeved in the movable groove, the inner part of the connecting sleeve is provided with a sliding groove arranged in the circumferential direction, and the ball is movably connected to the sliding groove.

[0014] With the above structure, the connecting rod and the connecting sleeve are relatively rotated, the ball is rotated when the connecting rod slides upward, the ball can make the relative rotation and sliding of the connecting rod and the connecting sleeve more smooth, and the connecting rod is prevented from being pulled out of the connecting sleeve.

[0015] As a preferred method for implementing adjustable coal mine mining height gauges, the two ends of the chute are arc-shaped surfaces.

[0016] With the above structural design, the two ends of the groove fit snugly against the arc-shaped surface of the ball, making it less likely to damage the ball.

[0017] As a preferred implementation method of an adjustable coal mine mining height gauge, the top of the connecting rod is connected to a top block, and the radial dimension of the top block is larger than the inner diameter of the connecting sleeve.

[0018] Using the above structural design, the top block can limit the maximum depth to which the connecting rod can move into the connecting sleeve.

[0019] As a preferred implementation method for adjustable coal mine mining height gauges, the mounting plate has several mounting holes around the fixed base, which penetrate the mounting plate vertically, and the mounting holes are evenly arranged.

[0020] The above structural design allows for the installation and fixation of the entire structure.

[0021] The beneficial effects of this utility model include:

[0022] Rotating the connecting sleeve prevents the connecting rod from rotating under the influence of the guide rod and the rectangular protrusion. Because the connecting rod is threadedly connected to the connecting sleeve, it can rise or fall, and can move axially relative to the connecting sleeve and guide rod. This allows for flexible adjustment of the connecting rod's length as needed. Height can be measured using the reflective ruler sticker on the outer circumference of the connecting rod, making it convenient to use and requiring minimal space for storage. Attached Figure Description

[0023] To more clearly illustrate the technical solution of this utility model, the drawings used in the description will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This invention relates to a three-dimensional structure of an adjustable coal mine mining height gauge in a specific embodiment of the present invention. Figure 1 ;

[0025] Figure 2 This invention relates to a three-dimensional structure of an adjustable coal mine mining height gauge in a specific embodiment of the present invention. Figure 2 ;

[0026] Figure 3 for Figure 1 A partial structural front sectional view;

[0027] Figure 4 For Figure 3 Enlarged view at A;

[0028] Figure 5 For Figure 3 Enlarged view at B.

[0029] Parts and list of reference numerals:

[0030] 1, mounting plate; 2, mounting hole; 3, fixed seat; 4, connecting sleeve; 5, connecting rod; 6, top block; 7, reflective scale sticker; 8, adjusting mechanism; 9, locking mechanism; 81, fixed block; 82, handle; 83, guide rod; 84, movable groove; 85, ball; 86, sliding groove; 91, insertion slot; 92, insertion rod; 93, sliding block; 94, connecting block; 95, pull rod; 96, fixed rod; 97, spring; 98, upper magnet; 99, lower magnet. DETAILED DESCRIPTION

[0031] In order to make the purpose, features and advantages of the utility model more obvious and easy to understand, the technical solutions in the utility model will be described clearly and completely below in combination with the drawings in the specific embodiments. Obviously, the embodiments described below are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the present application.

[0032] With reference to Figures 1-5 The embodiment provides a kind of adjustable coal mine height scale, including mounting plate 1, the top of mounting plate 1 is connected with fixed seat 3, mounting plate 1 is connected with several mounting holes 2 around fixed seat 3, mounting hole 2 penetrates mounting plate 1 from top to bottom, several mounting holes 2 are evenly arranged. Fixed seat 3 is rotatably connected with connecting sleeve 4 in the inside through rotating bearing, connecting sleeve 4 is located in the top of fixed seat 3 cylindrical body, connecting sleeve 4 is rotatably connected with connecting rod 5 in the inside by screw thread, connecting rod 5 is coaxially arranged with connecting sleeve 4, guide rod 83 is coaxially slidably connected in the inside of connecting rod 5, the bottom of guide rod 83 is fixedly connected with fixed seat 3 by connecting sleeve 4, and the two sides of guide rod 83 are provided with the rectangular protrusion inserted into connecting rod 5. The top of connecting rod 5 is connected with top block 6, and the radial dimension of top block 6 is greater than the inner diameter of connecting sleeve 4. The outer circumferential surface of connecting rod 5 is provided with arc-shaped movable groove 84, and ball 85 is movably sleeved in movable groove 84. The inside of connecting sleeve 4 is provided with sliding groove 86 arranged along the circumferential direction, and ball 85 is movably connected to sliding groove 86. The two ends of sliding groove 86 are arc surfaces. The outer circumferential surface of connecting sleeve 4 is engraved with scale arranged along the axial direction, and the outer circumferential surface of connecting rod 5 is provided with reflective scale sticker 7 arranged along the axial direction.

[0033] The outer part of the connecting sleeve 4 is provided with an adjusting mechanism 8, which comprises a plurality of fixed blocks 81 fixedly connected to the outer circumferential surface of the connecting sleeve 4, the plurality of fixed blocks 81 being arranged along the outer circumferential surface of the connecting sleeve 4, the plurality of fixed blocks 81 being connected with the same handle 82, and the handle 82 being sleeved on the outer circumferential surface of the connecting sleeve 4. The adjusting mechanism 8 is provided with a locking mechanism 9, which comprises a plug rod 92 axially parallel to the connecting sleeve 4, the bottom end of the plug rod 92 being inserted into the empty slot in the fixed seat 3, the bottom end of the plug rod 92 being connected with a sliding block 93, the sliding block 93 being slidably connected with the empty slot in the axial direction of the plug rod 92, the outer part of the sliding block 93 extending horizontally out of the empty slot and being connected with a connecting block 94, the connecting block 94 being slidably connected with the fixed seat 3 in the axial direction of the plug rod 92, the outer part of the connecting block 94 being connected with a pull rod 95; the empty slot is provided with a fixed rod 96 axially parallel to the plug rod 92, the fixed rod 96 being slidably connected with the sliding block 93 in the axial direction of the plug rod 92, the outer circumferential surface of the fixed rod 96 being provided with a spring 97, one end of the spring 97 being fixed with the sliding block 93, the other end of the spring 97 being connected with the bottom of the empty slot, the bottom of the sliding block 93 being provided with an upper magnet 98, and the bottom of the empty slot being provided with a lower magnet 99, the upper magnet 98 and the lower magnet 99 being capable of being magnetically connected; the bottom of the handle 82 is provided with a plurality of plug slots 91 in the circumferential direction, and the top end of the plug rod 92 can be slid in and out of the plug slot 91 in the axial direction.

[0034] The working principle of the embodiment is as follows:

[0035] When it is necessary to adjust the length of the height gauge, the handle 82 is rotated, the handle 82 drives the fixed block 81 and the connecting sleeve 4 to rotate, so that the connecting rod 5 performs threaded movement, the connecting rod 5 slides along the guide rod 83, and at the same time, the connecting rod 5 drives the ball 85 to slide along the sliding groove 86, the connecting rod 5 can be adjusted in extension and contraction inside the connecting sleeve 4, and the relative position of the connecting rod 5 and the connecting sleeve 4 can be adjusted, so that the length of the height gauge can be flexibly adjusted according to requirements.

[0036] When the position of the connecting rod 5 is adjusted, the pull rod 95 is pulled, the pull rod 95 drives the connecting block 94 to move, the connecting block 94 drives the sliding block 93 to move, the sliding block 93 drives the upper magnet 98 to move and separate from the lower magnet 99, at this time, the sliding block 93 is given an upward reaction force under the elastic action of the spring 97, the sliding block 93 drives the plug rod 92 to move upward, the plug rod 92 is inserted into the plug slot 91, the plug rod 92 and the plug slot 91 are inserted, the handle 82 is limited, and then the connecting sleeve 4 is limited, so that the length of the height gauge can be locked after the height of the height gauge is adjusted, and the stability of the height gauge during use is avoided from being affected by the rotation of the connecting sleeve 4 caused by accidental touch.

[0037] In the embodiment, the total length of the extension length of the connecting rod 5 and the length of the connecting sleeve 4 is the final measurement value. Thus, in the embodiment, the external scale of the connecting sleeve 4 increases from bottom to top, the values on the reflective ruler sticker 7 increase from top to bottom, and the smallest value on the reflective ruler sticker 7 can start from the largest value on the external scale of the connecting sleeve 4.

[0038] The above description of disclosed embodiments enables one of ordinary skill in the art to make or use the application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein can be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An adjustable coal mining height gauge comprising a mounting plate (1) characterised in that, The top end of the mounting plate (1) is connected with a fixing seat (3), the fixing seat (3) is rotationally connected with a connecting sleeve (4), the connecting sleeve (4) is a cylinder, the inside of the connecting sleeve (4) is rotationally connected with a connecting rod (5) through screw threads, the connecting rod (5) is coaxial with the connecting sleeve (4), the inside of the connecting rod (5) is coaxially and slidingly connected with a guide rod (83), the bottom of the guide rod (83) is fixedly connected with the fixing seat (3) through the connecting sleeve (4), the two sides of the guide rod (83) are provided with rectangular protrusions inserted into the connecting rod (5); the outer periphery of the connecting sleeve (4) is engraved with scales arranged along the axial direction, and the outer periphery of the connecting rod (5) is provided with a reflective scale sticker (7) arranged along the axial direction.

2. An adjustable coal mining height gauge according to claim 1, characterised in that, The outside of the connecting sleeve (4) is provided with an adjusting mechanism (8), the adjusting mechanism (8) comprises a plurality of fixing blocks (81), the plurality of fixing blocks (81) are fixedly connected to the outer periphery of the connecting sleeve (4), the plurality of fixing blocks (81) are arranged around the outer periphery of the connecting sleeve (4), the plurality of fixing blocks (81) are connected with the same handle (82), and the handle (82) is sleeved on the outer periphery of the connecting sleeve (4).

3. An adjustable coal mining height gauge according to claim 2, characterised in that, The adjusting mechanism (8) is provided with a locking mechanism (9), the locking mechanism (9) comprises a plug rod (92) axially parallel to the connecting sleeve (4), the bottom end of the plug rod (92) is inserted into a hollow slot in the fixing seat (3), the bottom end of the plug rod (92) is connected with a sliding block (93), the sliding block (93) is slidingly connected with the hollow slot along the axial direction of the plug rod (92), the outside of the sliding block (93) horizontally extends out of the hollow slot and is connected with a connecting block (94), the connecting block (94) is slidingly connected with the fixing seat (3) along the axial direction of the plug rod (92), and the outside of the connecting block (94) is connected with a pull rod (95); the hollow slot is provided with a fixed rod (96) axially parallel to the plug rod (92), the fixed rod (96) is slidingly connected with the sliding block (93) along the axial direction of the plug rod (92), the outer periphery of the fixed rod (96) is provided with a spring (97), one end of the spring (97) is fixedly connected with the sliding block (93), the other end of the spring (97) is connected with the bottom of the hollow slot, the bottom of the sliding block (93) is provided with an upper magnet (98), the bottom of the hollow slot is provided with a lower magnet (99), and the upper magnet (98) and the lower magnet (99) can be magnetically connected; a plurality of insertion grooves (91) are formed in the bottom of the handle (82) along the circumferential direction, and the top end of the plug rod (92) can slide in and out of the insertion grooves (91) along the axial direction.

4. The adjustable coal mining height gauge according to claim 1, characterized in that, The outer periphery of the connecting rod (5) is provided with an arc-shaped movable groove (84), a ball (85) is movably sleeved in the movable groove (84), and the inside of the connecting sleeve (4) is provided with a sliding groove (86) arranged along the circumferential direction, and the ball (85) is movably connected with the sliding groove (86).

5. An adjustable coal mining height gauge according to claim 4, characterised in that, The two ends of the sliding groove (86) are arc surfaces.

6. An adjustable coal mining height gauge according to claim 1, characterised in that, The top of the connecting rod (5) is connected with a top block (6), and the radial dimension of the top block (6) is greater than the inner diameter of the connecting sleeve (4).

7. An adjustable coal mining height gauge according to claim 1, characterised in that, The mounting plate (1) is provided with a plurality of mounting holes (2) around the fixing seat (3), the mounting holes (2) vertically penetrate the mounting plate (1), and the plurality of mounting holes (2) are uniformly arranged.

Images