Measuring tape for highway design surveying and mapping

Abstract

The utility model discloses a measuring tape for highway design surveying and mapping, and belongs to the technical field of measuring tapes. The measuring tape comprises a connecting frame, a measuring tape body is installed on the connecting frame, positioning pieces are arranged on the two sides of the outer wall of the connecting frame, each positioning piece comprises two positioning plates, one positioning plate is provided with a screw hole, an assembling area is arranged between the two positioning plates, and when a trapezoidal block is arranged in the assembling area in a matched mode, a positioning bolt is arranged in the screw hole in a matched mode. The positioning bolts penetrate out of the screw holes and then stretch into the trapezoidal blocks to fix the trapezoidal blocks, and trapezoidal grooves are formed in the trapezoidal blocks. By means of the positioning pieces, the positioning bolts and the trapezoid blocks, in the using process, the pair of trapezoid blocks are in contact with the ground after being assembled to stably support the connecting frame, the stability of the connecting frame is further enhanced, and compared with the mode that a positioning nail is deeply inserted into the ground in the prior art, the device simplifies the positioning process and improves the positioning efficiency. The application range under various ground conditions is widened, and the flexibility and efficiency of surveying and mapping work are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of tape measure technology, specifically to a tape measure for highway design surveying. BACKGROUND

[0002] The engineering surveying tape measure can also be called an engineering ruler, a handheld tape measure or a rack type tape measure, and it is a common measuring tool in engineering surveying, and the authorized utility model patent (publication number: CN219531851U) discloses a surveying tape measure for highway design.

[0003] However, the above device still has some deficiencies in use: specifically, in order to ensure the stability of the connecting frame, the positioning nail needs to be inserted deeply into the ground, which increases the difficulty of inserting and removing the positioning nail, and at the same time, on hard geological or cement pavement and other hard ground, the positioning nail is difficult to insert effectively, so it cannot provide sufficient stability, which limits the use range of the existing tape measure under various ground conditions, and reduces the flexibility and efficiency of the surveying work, therefore, a tape measure for highway design surveying is proposed for the above situation. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a tape measure for highway design surveying, through the structural design of the positioning member, the positioning bolt and the trapezoidal block, the stability of the connecting frame is enhanced, and compared with the mode of deeply inserting the positioning nail into the ground in the prior art, the device simplifies the positioning process and solves the problem of large limitation of stable support by the positioning nail.

[0005] The utility model is implemented through the following technical solutions:

[0006] The utility model is a tape measure for highway design surveying, which comprises a connecting frame, a tape measure main body is installed on the connecting frame, positioning members are arranged on the two sides of the outer wall of the connecting frame, the positioning member comprises a positioning plate, there are two positioning plates, one of the positioning plates is provided with a threaded hole, the two positioning plates are provided with an assembly area, when a trapezoidal block is matched in the assembly area, a positioning bolt is matched in the threaded hole, the positioning bolt is fixed in the trapezoidal block after penetrating out of the threaded hole, a trapezoidal groove is formed in the trapezoidal block, a plurality of threaded holes are formed in the trapezoidal groove in the horizontal direction, a supporting rod is matched in the threaded hole, and the bottom of the supporting rod is provided with a supporting pad.

[0007] Further, the connecting frame is in the shape of "U", through grooves are formed in the two sides of the connecting frame, counterweight blocks are matched in the two through grooves, and the bottom of the counterweight block is in contact with the bottom surface of the trapezoidal groove when the trapezoidal block is assembled on the connecting frame.

[0008] Further, the top of the trapezoidal block is provided with a connecting hole, and the end of the positioning bolt passing through the threaded hole matches the connecting hole.

[0009] Further, the support rod is provided with a threaded structure matching the threaded hole, and the radius of the support pad is smaller than that of the support rod.

[0010] Further, the bottom surface of the trapezoidal block is provided with anti-skid lines to increase the friction when contacting the ground.

[0011] The utility model has the following beneficial effects:

[0012] The utility model discloses the structure design of positioning piece, positioning bolt and trapezoidal block, when using, a pair of trapezoidal blocks is assembled and contacts the ground and supports the connecting frame, further strengthens the stability of connecting frame, compared with the mode that the positioning nail of prior art depends on and inserts the ground, the device simplifies the positioning process, improves the use range under a variety of ground conditions, improves the flexibility and efficiency of surveying and mapping work.

[0013] The utility model discloses the structure design of threaded hole, support rod and support pad, when using, when the device is placed on the ground and appears the situation of local instability, makes it contact the ground by adjusting the installation position of support rod, and then plays the role of stably placing the whole, improves the stability of the device whole when the staff pulls the tape measure and carries out surveying and mapping.

[0014] Of course, any product implementing the utility model does not necessarily need to achieve all the advantages described above. DRAWINGS

[0015] Figure 1 It is the whole structure schematic diagram of tape measure.

[0016] Figure 2 It is the whole structure schematic diagram of connecting frame.

[0017] Figure 3 It is the structure schematic diagram of trapezoidal block.

[0018] Figure 4 It is the structure schematic diagram of support rod.

[0019] In the drawing: 1, connecting frame;101, through slot;2, tape measure main body;3, counterweight block;4, positioning piece;401, positioning plate;5, positioning bolt;6, trapezoidal block;601, trapezoidal groove;602, connecting hole;603, threaded hole;7, support rod;701, support pad. CONCRETE IMPLEMENTING METHOD

[0020] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be described clearly and completely. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0021] Please refer to Figures 1-4 The utility model provides a kind of tape measure for highway design surveying and mapping, including connecting frame 1, connecting frame 1 is equipped with tape measure main body 2.

[0022] The outer wall of connecting frame 1 is provided with positioning member 4 on both sides, and the positioning member 4 includes positioning plate 401, and the positioning plate 401 has two pieces, one of which has a threaded hole, and the two positioning plates 401 have an assembly area between them, and when the assembly area is matched with trapezoidal block 6, the threaded hole is matched with positioning bolt 5, and the positioning bolt 5 is inserted into the trapezoidal block 6 after passing through the threaded hole to fix the trapezoidal block 6.

[0023] The top of trapezoidal block 6 is provided with connecting hole 602, and the end of positioning bolt 5 passing through the threaded hole is matched with connecting hole 602.

[0024] Trapezoidal groove 601 is provided on trapezoidal block 6, and a plurality of threaded holes 603 are provided in the horizontal direction, and supporting rod 7 is matched in threaded hole 603, and supporting pad 701 is provided at the bottom of supporting rod 7.

[0025] The bottom surface of trapezoidal block 6 is provided with anti-skid pattern to increase the friction when contacting with the ground.

[0026] The tape measure main body 2 includes a shell, which is fixedly connected to the inner side of the connecting frame 1, and the inner wall of the shell is rotatably connected with the shaft, and the surface of the shaft is wound with the tape body, and one end of the shaft is sequentially penetrated through the shell and the connecting frame and is fixedly connected with the hand wheel.

[0027] The rotation of the hand wheel is always away from the positioning member 4 to avoid motion interference.

[0028] In use, the trapezoidal block 6 is clamped into the assembly area between the two positioning members 4, then the positioning bolt 5 is screwed into the threaded hole on the positioning member 4, and after the positioning bolt 5 is rotated, it extends into the connecting hole 602, thereby completing the installation of the trapezoidal block 6. After the two trapezoidal blocks 6 are installed one by one, the device is placed on the ground to be surveyed. When the device shakes due to uneven ground, the support rod 7 is screwed into the threaded hole 603 corresponding to the shaking position, and after the support rod 7 is rotated, it vertically descends, thereby causing the support pad 701 to descend and contact the ground, and the trapezoidal block 6 is used to stably support the connecting frame 1. Then, the staff can pull the tape measure to perform surveying work.

[0029] In this embodiment, as shown in Figure 1 、 Figure 2 and Figure 3 , the connecting frame 1 has a "U" shape, and the two sides of the connecting frame 1 are provided with through grooves 101. The two through grooves 101 are matched with the counterweight blocks 3. When the trapezoidal block 6 is assembled on the connecting frame 1, the bottom of the counterweight block 3 contacts the bottom surface of the trapezoidal groove 601.

[0030] In this embodiment, the through grooves 101 are used to place the counterweight blocks 3, which further improves the stability of the device when placed on the ground, and is beneficial to subsequent staff to pull the tape measure to perform surveying work.

[0031] In this embodiment, as shown in Figure 1 、 Figure 3 and Figure 4 , the support rod 7 has a threaded structure matched with the threaded hole 603, and the radius of the support pad 701 is smaller than the radius of the support rod 7.

[0032] In this embodiment, when the ground is flat, the support pad 701 can be retracted into the threaded hole 603 by counterclockwise rotating the support rod 7, thereby ensuring the flatness of the bottom of the trapezoidal block 6.

[0033] The support pad 701 is a cylindrical rod structure.

[0034] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details, nor limit the utility model to the specific embodiments described. Obviously, according to the content of the specification, many modifications and changes can be made. The specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that the skilled in the art can well understand and utilize the utility model. The utility model is limited by the claims and the entire scope and equivalents thereof.

Claims

1. A tape for highway design surveying, comprising a connecting frame (1) on which a tape body (2) is installed, characterized in that: Both sides of the outer wall of the connecting frame (1) are provided with positioning members (4), the positioning members (4) comprise positioning plates (401), the positioning plates (401) have two, one of the positioning plates (401) has a threaded hole, the two positioning plates (401) have an assembly area, when a trapezoidal block (6) is fitted in the assembly area, a positioning bolt (5) is fitted in the threaded hole, the positioning bolt (5) is inserted into the trapezoidal block (6) after passing through the threaded hole to fix the trapezoidal block (6); The trapezoidal block (6) is provided with a trapezoidal groove (601), the trapezoidal groove (601) is provided with a plurality of threaded holes (603) in the horizontal direction, the threaded holes (603) are fitted with support rods (7), the bottom of the support rods (7) is provided with support pads (701).

2. The tape measure of claim 1, wherein, The connecting frame (1) is in the shape of "U", both sides of the connecting frame (1) are provided with through grooves (101), two counterweight blocks (3) are fitted in the through grooves (101), when the trapezoidal block (6) is assembled on the connecting frame (1), the bottom of the counterweight block (3) is in contact with the bottom surface of the trapezoidal groove (601).

3. The tape measure of claim 2, wherein, The top of the trapezoidal block (6) is provided with a connecting hole (602), one end of the positioning bolt (5) passing through the threaded hole is fitted with the connecting hole (602).

4. The tape measure of claim 1, wherein, The support rods (7) are provided with threaded structures fitted with the threaded holes (603), the radius of the support pads (701) is smaller than the radius of the support rods (7).

5. The tape measure of claim 2, wherein, The bottom surface of the trapezoidal block (6) is provided with anti-skid lines to increase the friction when in contact with the ground.

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