Auxiliary fixing device for underground roadway surveying and mapping measuring tape hook

Abstract

The utility model discloses an auxiliary fixing device for a hook of an underground roadway surveying and mapping tape, which belongs to the technical field of underground roadway surveying and mapping and specifically comprises a fixing plate, a supporting plate and a cover plate. The supporting plate is perpendicularly and integrally formed at the tail end of the fixing plate, and a left wrapping piece and a right wrapping piece which can be turned over are integrally formed on the two sides of the supporting plate respectively. The middle of the tail end of the fixing plate is provided with an insertion hole for inserting a tape hook, and the tail end of the cover plate is rotatably connected with the fixing plate through a hinge. A notch is formed in the middle of the top of the fixing plate through an integrally-formed supporting strip frame, and a notch is formed in the position, corresponding to the notch, of the front end of the middle of the cover plate. According to the utility model, the main body structure is made of light plastic, and the whole structure is arranged on the hook of the measuring tape, so that the subsequent separation between the ruler and the iron nail can be facilitated on the premise of not influencing the hanging connection with the nail cap, the use is simple, the operation difficulty of fixing the ruler can be effectively reduced, the operation time is shortened, and the surveying and mapping efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the underground roadway surveying and mapping technical field, concretely relates to a kind of underground roadway surveying and mapping tape hook auxiliary fixing device. BACKGROUND

[0002] Since in the coal mine underground surveying and mapping operation, when measuring the elevation of the front and rear sight guide line points, a nail is needed to be nailed on the position of the front and rear sight guide line points with hammer, then a line rope is tied on the nail, then the line rope is parallelly passed through a reflector, a hammer ball or a stone is hung below the line rope, the plane of the reflector is perpendicular to the laser lens, the laser emitted by total station is to the center of the cross wire of the reflector, the distance between the roof guide line point and the cross wire of the reflector is measured by tape as the visual height of the point, and the distance between the roof guide line point and the cross line of the total station machine is measured by tape as the instrument height of the point, after the completion of the data measurement, the station surveying and mapping is completed, and the point triangular elevation and coordinate are obtained.

[0003] At present, in the process of roadway surveying and mapping, the fixing between the tape and the guide line point is usually to cut an opening in the middle of the hook of the tape, and the hook of the front end of the tape is hung on the end cap of the nail through the opening, but as known, the length and width of the hook of the front end of the ruler are limited, the depth of the opening is not enough, which leads to the insufficient cooperation stability between the hook of the ruler and the end cap, and the ruler is easily loosened, and moreover, due to the ventilation and air exchange factors in the underground roadway, the flow of air in the roadway also leads to the loosening of the ruler, so that it needs to be repeated many times every time the data is measured, which is extremely time-consuming and laborious.

[0004] Therefore, we refer to the existing tape structure, and design a kind of underground roadway surveying and mapping tape hook auxiliary fixing device. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a kind of underground roadway surveying and mapping tape hook auxiliary fixing device to solve the above problems existing in prior art.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A kind of underground roadway surveying and mapping tape hook auxiliary fixing device, including fixed plate, support plate and cover plate;The support plate is integrally formed at the tail end of fixed plate vertically, and the left and right package pieces that can be folded are integrally formed on the both sides of support plate.

[0008] Further, a hole is arranged in the middle of the tail end of the fixed plate for inserting the tape hook, the top of the fixed plate is concave to form a receiving groove for receiving the cover plate, the tail end of the cover plate is connected with the fixed plate through a hinge, the middle of the top of the fixed plate is formed with a notch through the support strip frame, the front end of the middle of the cover plate is formed with a notch corresponding to the notch, and the cover plate on both sides of the notch is fixed with an upper magnet, and the fixed plate on both sides of the notch is fixed with a lower magnet corresponding to the position of the upper magnet.

[0009] Further, the support plate is designed as a whole arc, and a reinforcing rib is arranged between the support plate and the fixed plate.

[0010] Further, a plurality of round head pins are integrally formed on the left cover plate, and a plurality of fixing holes are formed on the right cover plate corresponding to the positions of the round head pins.

[0011] Further, the opening ends of the notch and the notch are designed as an inclined angle to form an expansion, the closing ends of the notch and the notch are designed as a rectangular structure, and the width of the closing end of the notch is smaller than that of the closing end of the notch.

[0012] Further, the height of the support strip frame is 4-5 mm, and the height of the anti-falling block integrally formed on both sides of the middle of the notch is 1-1.5 mm, and the both ends of the anti-falling block are designed as a circular arc transition.

[0013] Further, a guide plate is integrally formed on both sides of the notch at the front end of the fixed plate, and the opposite side of the guide plate is designed as an inclined chamfer.

[0014] Further, the upper magnet and the lower magnet are both 2-3 mm thick button type Rb-Fe-B strong magnets, and the magnetic poles of the opposite sides of the upper magnet and the lower magnet are opposite.

[0015] Further, the round head pin is composed of a cylinder and a head, the head is designed as a hemisphere, the diameter of the head is larger than the diameter of the fixing hole, and a cross-shaped slot is formed in the middle of the round head pin.

[0016] Further, the fixed plate, the cover plate and the support plate are all made of any one of polycarbonate, polypropylene or polyethylene plastic by injection molding.

[0017] Beneficial effects:

[0018] The utility model discloses a main body structure is by light plastic constitution, whole structure is installed on the hook of tape measure, and the effect of long, wide tape measure hook is prolonged, the gap that is used to cooperate with the nail cap is lengthened, deepened, and the cover plate of turning over is set on the gap, and the permanent magnet is cooperated, so that the device can under the premise of not influencing the hooking between the nail cap, the separation of the subsequent ruler and the iron nail is also facilitated, simple to use, can effectively reduce the operation difficulty of ruler fixed, shorten the operation time, improve the surveying efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 For the utility model structure schematic Figure 1 ;

[0020] Figure 2 For the utility model structure schematic Figure 2 ;

[0021] Figure 3 For the utility model half cross section structure schematic Figure 1 ;

[0022] Figure 4 For the utility model half cross section structure schematic Figure 2 ;

[0023] Figure 5 For the utility model structure schematic Figure 3 .

[0024] In the drawing: 1, fixed plate;2, support plate;3, reinforcing rib;4, left packet piece;5, right packet piece;6, round head snap pin;7, insertion hole;8, tape measure hook;9, accommodation groove;10, support strip frame;11, slot;12, hinge;13, cover plate;14, gap;15, anti -drop block;16, upper magnet;17, lower magnet;18, guide plate. DETAILED DESCRIPTION

[0025] In order to more clearly illustrate the utility model embodiment or prior art technical scheme, the utility model will be briefly introduced with the description of embodiment or prior art and the drawings, obviously, the following description of the structure of the drawing is only some embodiments of the utility model, for the ordinary skill in the art, under the premise of not paying creative labor, other drawings can also be obtained 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 of the utility model.

[0026] Embodiment:

[0027] In view of the current roadway laser mapping process, when measuring elevation data, the traditional tape fixed operation is only to cut a V-shaped or U-shaped socket on the hook of the tape, and to fix it by using the socket and the nail cap of the guide point. Due to the size limitation of the tape hook 8, the socket depth is shallow, which leads to the tape falling off easily under the influence of air flow. The elevation mapping operation of a guide point often needs to consume a lot of time to fix the tape, which is time-consuming and laborious. Therefore, we refer to the existing tape structure, and design a kind of auxiliary fixing device for underground roadway mapping tape hook 8 based on the traditional tape fixing operation. The specific scheme is as follows:

[0028] As shown in Figures 1-5 , the embodiment provides an auxiliary fixing device for underground roadway mapping tape hook 8, which comprises a fixed plate 1, a support plate 2 and a cover plate 13. The support plate 2 is integrally formed at the tail end of the fixed plate 1, forming a right angle structure, and a reinforcing rib 3 is arranged between the support plate 2 and the fixed plate 1, which facilitates the tape to be hung below the guide point at a vertical angle in the later stage, and still can keep good connection effect between the nail cap and the iron nail. The fixed plate 1 tail end middle position is provided with a insertion hole 7 for inserting the tape hook 8. In order to ensure the stability of the assembly between the device and the tape end hook, and avoid the phenomenon of falling off, the right angle structure design of the tape end is used, and the left and right folding pieces 4 and 5 are integrally formed on both sides of the support plate 2, which are used to wrap the tape end part, so as to effectively avoid the tape hook 8 from falling off from the device.

[0029] As shown in Figures 2-5As shown, the top of the fixing plate 1 is recessed downward to form a receiving groove 9 to accommodate the cover plate 13, and the tail end of the cover plate 13 is rotatably connected to the fixing plate 1 via a hinge 12, allowing the cover plate 13 to rotate around the hinge 12 on the fixing plate 1. A notch 11 is formed in the middle of the top of the fixing plate 1 via an integrally formed support frame 10. To avoid obstructing the nail head during insertion, the support frame 10 is designed with a height of 4-5 mm, providing sufficient space for the nail head to pass through. To effectively cooperate with the nail at the guide point, a notch 14 is provided at the front end of the cover plate 13 corresponding to the notch 11. Upper magnets 16 are fixed on both sides of the cover plate 13 at the notch 14, and lower magnets 17 are fixed on both sides of the fixing plate 1 on both sides of the notch 11 corresponding to the upper magnets 16. Furthermore, both the opening ends of the notch 14 and the notch 11 are designed with an inclined angle to form an flared opening. The closed end of 1 is designed with a rectangular structure. The width of the closed end of the notch 14 is smaller than the width of the closed end of the slot 11. Due to the rotational fit between the cover plate 13 and the fixing plate 1, in order to ensure that the device can be separated from the nail in the future, and to enable it to be effectively fitted and fixed with the nail head during normal use, the upper magnet 16 and the lower magnet 17 are both made of button-type neodymium iron boron strong magnets with a thickness of 2-3 mm. The magnetic poles of the upper magnet 16 and the lower magnet 17 are opposite on opposite sides. By utilizing the strong magnetic attraction effect of the neodymium iron boron strong magnets and the principle of opposite poles attracting, the stability of the fit between the cover plate 13 and the fixing plate 1 can be ensured during the use of the device, so that the cover plate 13 will not flip under the weight of the measuring tape. After the measuring tape is used, the magnets on the cover plate 13 and the fixing plate 1 can be separated by the help of the staff, so that the nail head can be easily removed from the slot 11.

[0030] As is well known, the surface of a measuring tape is curved. In order to enable the device to work effectively with the tape and avoid squeezing and deforming the tape body, the support plate 2 is designed with an arc shape.

[0031] To improve the stability of the device during installation with the measuring tape hook 8, such as Figure 1 As shown, several round-headed locking pins 6 are integrally formed on the left cover piece 4, and corresponding fixing holes are provided on the right cover piece 5 at the positions of the round-headed locking pins 6. The round-headed locking pin 6 is composed of a cylinder and a locking head. The locking head is hemispherical and its diameter is larger than the diameter of the fixing hole. A cross-shaped slot is provided in the middle of the round-headed locking pin 6. When fixing the device to the measuring tape hook 8, first insert the front end of the measuring tape hook 8 into the insertion hole 7, and then fold the left cover piece 4 and the right cover piece 5 so that they cooperate with the support plate 2 to wrap the end of the measuring tape. Then, the round-headed locking pin 6 passes through the fixing hole through the right cover piece 5 to form a locking fix.

[0032] During use, due to wind in the underground tunnels, to prevent the measuring tape from falling off, such as...Figures 3-5 As shown, the anti-falling blocks 15 with a height of 1-1.5 mm are integrally formed at both sides of the middle part of the aperture 14, and the two ends of the anti-falling blocks 15 are designed with a round arc transition. Since the height of the whole support strip frame 10 is higher than the thickness of the conventional iron nail cap, the nail cap is clamped in the groove 11 under the cooperation of the aperture 14, and after the user puts down the tape measure, the nail cap is tightly attached to the cover plate 13 under the action of the natural gravity. At this time, the anti-falling blocks 15 can prevent the nail cap from falling off accidentally.

[0033] When fixing the tape measure, in order to quickly find the iron fixing position, as shown in Figures 1-5 As shown, the anti-falling blocks 15 with a height of 1-1.5 mm are integrally formed at both sides of the middle part of the aperture 14, and the two ends of the anti-falling blocks 15 are designed with a round arc transition. Since the height of the whole support strip frame 10 is higher than the thickness of the conventional iron nail cap, the nail cap is clamped in the groove 11 under the cooperation of the aperture 14, and after the user puts down the tape measure, the nail cap is tightly attached to the cover plate 13 under the action of the natural gravity. At this time, the anti-falling blocks 15 can prevent the nail cap from falling off accidentally.

[0034] In order to reduce the weight of the whole device and avoid the problem that the device is difficult to keep the same direction forward effect during the tape measure stretching due to the weight, the fixing plate 1, the cover plate 13 and the support plate 2 are integrally formed by injection molding with any one of polycarbonate, polypropylene or polyethylene plastic which has a relatively light weight.

[0035] Finally, it should be noted that: the above only describes the preferred embodiments of the present application, and is not used to limit the protection scope of the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. An auxiliary fixing device for a hook on a surveying tape measure in underground roadways, characterized in that, It includes a fixing plate (1), a support plate (2) and a cover plate (13); the support plate (2) is vertically integrally formed at the tail end of the fixing plate (1), and the support plate (2) has a foldable left cover piece (4) and a right cover piece (5) integrally formed on both sides. The fixing plate (1) has a hole (7) for inserting a measuring tape hook (8) at the middle of its tail end. The top of the fixing plate (1) is recessed to form a receiving groove (9) for storing the cover plate (13). The tail end of the cover plate (13) is rotatably connected to the fixing plate (1) via a hinge (12). The middle of the top of the fixing plate (1) forms a notch (11) through an integrally formed support frame (10). The front end of the cover plate (13) is provided with a notch (14) corresponding to the notch (11). Upper magnets (16) are fixed on the cover plates (13) on both sides of the notch (14). Lower magnets (17) are fixed on the fixing plates (1) on both sides of the notch (11) corresponding to the upper magnets (16).

2. The auxiliary fixing device for a measuring tape hook in underground roadway surveying according to claim 1, characterized in that, The support plate (2) adopts an arc design as a whole, and a reinforcing rib (3) is provided between the support plate (2) and the fixing plate (1).

3. The auxiliary fixing device for a measuring tape hook in underground roadway surveying according to claim 1, characterized in that, The left cover piece (4) has several round-headed locking pins (6) integrally formed on it, and the right cover piece (5) has fixing holes corresponding to the positions of the round-headed locking pins (6).

4. The auxiliary fixing device for a measuring tape hook in underground roadway surveying according to claim 1, characterized in that, The opening ends of the notch (14) and the slot (11) are both designed with an inclined angle to form an flared opening. The closed ends of the notch (14) and the slot (11) are designed with a rectangular structure. The width of the closed end of the notch (14) is smaller than the width of the closed end of the slot (11).

5. The auxiliary fixing device for a measuring tape hook in underground roadway surveying according to claim 1, characterized in that, The height of the support frame (10) is 4-5 mm. The two sides of the middle part of the notch (14) are integrally formed with anti-detachment blocks (15) with a height of 1-1.5 mm. The two ends of the anti-detachment blocks (15) adopt a rounded transition design.

6. The auxiliary fixing device for a measuring tape hook in underground roadway surveying according to claim 1, characterized in that, The front end of the fixing plate (1) is integrally formed with a guide plate (18) on both sides of the notch (11), and the guide plate (18) has an inclined chamfer design on the opposite side.

7. The auxiliary fixing device for a measuring tape hook in underground roadway surveying according to claim 1, characterized in that, The upper magnet (16) and the lower magnet (17) are both button-type neodymium iron boron strong magnets with a thickness of 2-3 mm, and the magnetic poles of the upper magnet (16) and the lower magnet (17) are opposite on opposite sides.

8. The auxiliary fixing device for a measuring tape hook in underground roadway surveying according to claim 3, characterized in that, The round-headed locking pin (6) is composed of a cylinder and a locking head. The locking head is hemispherical and its diameter is larger than that of the fixing hole. A cross-shaped slot is provided in the middle of the round-headed locking pin (6).

9. The auxiliary fixing device for a measuring tape hook in underground roadway surveying according to claim 1, characterized in that, The fixing plate (1), cover plate (13) and support plate (2) are all injection molded from any one of polycarbonate, polypropylene or polyethylene.

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