Fixed-length marking device

Abstract

The utility model discloses a fixed-length marking device, which belongs to the technical field of line pipe construction and comprises a hoop, the hoop is a semi-circular ring, the hoop is connected through a rotating shaft and is arranged in a two-section mode, bolts are arranged on the surface of the hoop and located on the two sides of the rotating shaft, and an adjustable sliding assembly is arranged on the surface of the hoop. The sliding assembly comprises a support, a lead screw, guide columns and pulleys, the support is arranged on the inner side of the hoop, the pulleys are rotationally connected into the support, the lead screw is rotationally connected to the back face of the support, and the guide columns are fixedly installed on the portions, located on the two sides of the lead screw, of the back face of the support. By observing the through groove and the scales of the measuring tape, inserting the marking pen into the through groove and making lines along the auxiliary frame, the marking lines can be located on the same straight line as much as possible, later cutting is facilitated, a cutter is prevented from deviating, and the whole device is more convenient and labor-saving during marking.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of the pipe construction, specifically is a fixed length marking device. BACKGROUND

[0002] The power line pipe is a kind of pipeline specially used for transmitting power signal, mainly used for cable concealed laying and protection in power system, and the main functions are as follows: 1. protecting cable: in the process of cable laying, the power pipe can effectively protect the cable from the influence of external environment, such as compression resistance, tensile resistance, corrosion resistance, etc.;2. the power pipe can isolate the cable inside the pipeline, effectively prevent the cable from leaking and the interference of the outside world;3. the laying of the power pipe can make the cable more neat and beautiful, convenient for maintenance and management.

[0003] In the process of cable construction, the line pipe needs to be cut according to the specified length, so the length of the line pipe needs to be measured, and then the cutting machine is used to cut the pipeline.

[0004] When measuring the length of the line pipe, a tape measure is generally used to measure the length of the pipeline and mark a point, and then an angle grinder is used to cut, and when cutting, the pipeline is hollow and circular, and the angle grinder is easy to deviate when cutting, resulting in uneven pipe opening, therefore, a device for positioning and marking on the pipeline is needed. UTILITY MODEL CONTENTS

[0005] The utility model aims at: in order to solve the above problems, provide a fixed length marking device.

[0006] The technical scheme adopted by the utility model is as follows: a fixed length marking device, including hoop, the hoop is half circular ring arrangement, the hoop is connected through the pivot, and is two section type arrangement, and the hoop surface is located the both sides of pivot and is provided with bolt, the hoop surface is provided with the sliding assembly that can adjust;

[0007] The sliding assembly includes: support, screw rod, guide column, pulley, the inside of the hoop is provided with support, the inside of the support is rotatably connected with pulley, the back of the support is rotatably connected with screw rod, and the back of the support is fixedly installed with guide column on both sides of screw rod;

[0008] The extension block is slidably connected with the slide bar in the extension block through the pipe perforation, the slide bar is integrally provided with the clamping frame at the tail end, and the clamping frame is "U" shaped arrangement, and has elastic deformation;

[0009] The fixed assembly is arranged on one side of the hoop, and the fixed assembly includes: pressing rod, rack, limiting concave, movable piece, memory metal sheet;

[0010] The side of the hoop is provided with a rack, the end of the rack is provided with a limiting recess, the limiting recess is connected with a movable piece through a spring, the bottom of the movable piece is provided with a memory metal sheet, and the side of the hoop located at the rack side is movably connected with a pressing rod through a spring;

[0011] The hoop is externally provided with an auxiliary marking assembly, and the auxiliary marking assembly comprises a magnetic attraction groove, an auxiliary frame, an insertion block and a through groove.

[0012] The side of the hoop is provided with a magnetic attraction groove, the outside of the hoop is provided with an auxiliary frame, the side of the auxiliary frame is provided with an insertion block, and the surface of the auxiliary frame is provided with a through groove.

[0013] The bottom of the memory metal sheet is provided with a rubber layer, and the pressing rod is movably engaged with the teeth of the side of the rack.

[0014] The surface of the sliding rod is provided with a rubber damping layer, and the sliding rod is connected with the pipe perforation of the extension block through damping.

[0015] The auxiliary frame is provided in three sections, can form a ring, and the insertion block is movably connected with the magnetic attraction groove and magnetically attracted.

[0016] In summary, due to the adoption of the above technical scheme, the utility model has the beneficial effects that:

[0017] 1、In the utility model, the engagement of the screw thread makes the support move downward, the guide column plays a guiding role, the scale on the guide column is observed to ensure that the three groups of pulleys are in contact with the pipe, the whole hoop is conveniently and stably moved, the three groups of pulleys can provide stable support, and the adjustable sliding assembly can be used with various specifications of pipes.

[0018] 2、In the utility model, the marking pen is inserted into the through groove along the auxiliary frame to draw a line, the design can make the marking line as straight as possible, facilitates cutting in the later period, prevents the cutting tool from deviating, the design can make the whole device more convenient and labor-saving when marking, and is more labor-saving. DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 It is a schematic diagram of the overall structure of the utility model; Figure 1 It is a schematic diagram of the enlarged structure of position A in the utility model;

[0021] Figure 3 It is a schematic diagram of the enlarged structure of position B in the utility model; Figure 1 It is a schematic diagram of the enlarged structure of position B in the utility model;

[0022] Figure 4The auxiliary frame structure schematic diagram of the utility model.

[0023] Mark: 1, hoop; 101, magnetic attraction slot; 102, rotating shaft; 103, bolt; 2, support; 201, screw rod; 202, guide column; 203, pulley; 3, extension block; 301, sliding rod; 302, clamping frame; 4, pressing rod; 5, rack; 501, limiting concave; 502, movable piece; 503, memory metal sheet; 6, auxiliary frame; 601, plug block; 602, through slot. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be apparently and completely described in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0025] In the utility model,

[0026] Referring to Figures 1-4 A fixed-length marking device, hoop 1 is provided in a semicircular ring, hoop 1 is connected through rotating shaft 102, is provided in two sections, and bolt 103 is arranged on the surface of hoop 1 on both sides of rotating shaft 102, hoop 1 is opened through rotating shaft 102, hoop 1 is covered outside the line pipe, at this time, hoop 1 is folded, bolt 103 is connected, hoop 1 is fixed, and the surface of hoop 1 is provided with adjustable sliding assembly;

[0027] The sliding assembly comprises support 2, screw rod 201, guide column 202 and pulley 203, support 2 is arranged on the inner side of hoop 1, pulley 203 is rotatably connected in support 2, screw rod 201 is rotatably connected to the back of support 2, guide column 202 is fixedly installed on both sides of the back of support 2, the number of sliding assemblies is three, and the three sliding assemblies are arranged in an array, rotating screw rod 201, using the engagement of threads, so that support 2 moves downward, and guide column 202 plays a guiding role, the scale on guide column 202 is observed, three pulleys 203 are guaranteed to contact the line pipe, the whole hoop 1 is conveniently driven to move stably, and three pulleys 203 can provide stable support;

[0028] The side of the hoop 1 is provided with an extension block 3, and a sliding rod 301 is slidably connected in the extension block 3 through a pipe perforation, and a clamping frame 302 is integrally arranged at the end of the sliding rod 301, the clamping frame 302 is arranged in a "U" shape and has elastic deformation, the surface of the sliding rod 301 has a rubber damping layer, and the sliding rod 301 is in damping sliding connection with the pipe perforation of the extension block 3, the height of the clamping frame 302 can be selected, the tape is clamped in the clamping frame 302, the clamping frame 302 has elastic deformation, the tape can be clamped, then the tape is pulled out and hooked on the edge of the pipeline, the hoop 1 is moved along the pipeline, and the scale on the tape is observed;

[0029] The side of the hoop 1 is provided with a fixing assembly, and the fixing assembly comprises a pressing rod 4, a rack 5, a limiting recess 501, a movable piece 502 and a memory metal sheet 503.

[0030] The side of the hoop 1 is provided with the rack 5, the end of the rack 5 is provided with the limiting recess 501, the movable piece 502 is connected to the limiting recess 501 through a spring, the bottom of the movable piece 502 is provided with the memory metal sheet 503, and the side of the hoop 1 is movably connected to the rack 5 through a spring and provided with the pressing rod 4.

[0031] The hoop 1 is provided with an auxiliary marking assembly outside, and the auxiliary marking assembly comprises a magnetic attraction groove 101, an auxiliary frame 6, an insertion block 601 and a through groove 602.

[0032] The side of the hoop 1 is provided with the magnetic attraction groove 101, the outside of the hoop 1 is provided with the auxiliary frame 6, the side of the auxiliary frame 6 is provided with the insertion block 601, and the surface of the auxiliary frame 6 is provided with the through groove 602.

[0033] Further, the bottom of the memory metal sheet 503 is provided with a rubber layer, the pressing rod 4 is movably engaged with the teeth of the side of the rack 5, the rack 5 is pressed down, the inclined teeth of the side of the rack 5 are in contact with the pressing rod 4, and the rack 5 is moved downward until the memory metal sheet 503 is in contact with the pipeline, the rubber layer can increase the friction, the position of the hoop 1 is determined, the pressing rod 4 is pulled outward when it is needed to continue to move the hoop 1, the end of the pressing rod 4 is no longer in contact with the inclined teeth, and the rack 5 can be moved back to the original position.

[0034] Further, the auxiliary frame 6 is provided in three sections and can form a ring, the insertion block 601 is movably connected with the magnetic attraction groove 101, the insertion block 601 and the magnetic attraction groove 101 are connected through magnetic attraction, the auxiliary frame 6 is combined into a ring, the through groove 602 and the scale of the tape are observed, a marking pen is inserted into the through groove 602, and a line is drawn along the auxiliary frame 6, the marking line can be as straight as possible, the cutting is facilitated, the cutter is prevented from deviating, the design can make the whole device more convenient and labor-saving when marking, and the device is more labor-saving.

[0035] Working principle: first, through the shaft 102 will be open to the hoop 1, the hoop 1 cover the outside of the line pipe, at this time, will be folded hoop 1, using the latch 103 connection, fixed hoop 1, at this time, rotate the screw rod 201, using the engagement of the screw thread, so that the bracket 2 down, and the guide column 202 play a guiding role, through the observation of the scale on the guide column 202, ensure that the three pulley 203 are in contact with the line pipe, facilitate the whole hoop 1 stable movement, at this time, the tape is clamped into the clamp holder 302, clamp holder 302 has the deformation of elasticity, can clamp the tape, then pull out the tape, hook in the edge of the pipeline, along the line pipe to move the hoop 1, observe the scale on the tape, when moving to the appropriate position, the rack 5 down, the inclined teeth on the side of the rack 5 and the pressure bar 4 between the contact, down until the memory metal sheet 503 and the line pipe contact, the rubber layer can increase the friction force, to determine the position of the hoop 1, and then the plug 601 and the magnetic attraction groove 101 connection, so that the auxiliary frame 6 into a ring, at this time by observing the through slot 602 and the tape scale, the marker pen is inserted into the through slot 602, along the auxiliary frame 6 line, this design can make the marking line as far as possible in the same straight line, facilitate the cutting of later period, prevent the tool deviation, this design can make the whole device in the marking time more convenient and labor saving, and more labor saving, finally, need to make the hoop 1 continue to move, pull out the pressure bar 4, the end of the pressure bar 4 and the inclined teeth between no longer action, can move the rack 5 back.

[0036] The above only for the preferred embodiment of the utility model, and does not limit the utility model, any modification, equivalent replacement and improvement etc. within the spirit and principles of the utility model, should be included in the protection scope of the utility model.

Claims

1. A fixed-length marking device comprising a clamp (1), characterised in that: The hoop (1) is provided in a semi-circular ring, the hoop (1) is connected by a rotating shaft (102) and provided in two sections, and the surface of the hoop (1) is provided with a latch (103) on both sides of the rotating shaft (102), and the surface of the hoop (1) is provided with an adjustable sliding assembly; The sliding assembly comprises a bracket (2), a lead screw (201), a guide column (202) and a pulley (203), the inside of the hoop (1) is provided with the bracket (2), the pulley (203) is rotatably connected in the bracket (2), the bracket (2) is rotatably connected with the lead screw (201) on the back, and the guide column (202) is fixedly installed on both sides of the lead screw (201) on the back of the bracket (2); The hoop (1) is provided with an extension block (3) on one side, the sliding rod (301) is slidably connected in the extension block (3) through a pipe perforation, and the sliding rod (301) is integrally provided with a clamping frame (302) at the end; The hoop (1) is provided with a fixed assembly on one side, and the fixed assembly comprises a pressing rod (4), a rack (5), a limiting recess (501), a movable piece (502) and a memory metal sheet (503); The hoop (1) is provided with the rack (5) penetrating through one side, the limiting recess (501) is provided at the end of the rack (5), the movable piece (502) is connected with the limiting recess (501) through a spring, the memory metal sheet (503) is arranged at the bottom of the movable piece (502), and the pressing rod (4) is movably connected with the hoop (1) on one side of the rack (5) through a spring; The hoop (1) is provided with an auxiliary marking assembly outside, and the auxiliary marking assembly comprises a magnetic attraction groove (101), an auxiliary frame (6), an insertion block (601) and a through groove (602); The hoop (1) is provided with the magnetic attraction groove (101) on one side, the auxiliary frame (6) is arranged outside the hoop (1), the insertion block (601) is arranged on one side of the auxiliary frame (6), and the through groove (602) is arranged on the surface of the auxiliary frame (6).

2. A fixed length marking device as claimed in claim 1, characterized in that: The number of the sliding assembly is three, and the sliding assembly is arranged in an array.

3. A fixed length marking device as claimed in claim 1, characterized in that: The memory metal sheet (503) is provided with a rubber layer at the bottom, and the pressing rod (4) and the teeth of the rack (5) are movably engaged.

4. A fixed length marking device as claimed in claim 1, characterized in that: The clamping frame (302) is provided in a "U" shape and has elastic deformation.

5. A fixed length marking device as claimed in claim 1, characterized in that: The surface of the sliding rod (301) has a rubber damping layer, and the sliding rod (301) is slidably connected between the pipe perforations of the extension block (3) through damping.

6. A fixed length marking device as claimed in claim 1, characterized in that: The auxiliary frame (6) is provided in three sections and can form a circular ring, the insertion block (601) and the magnetic attraction groove (101) are movably connected, and the magnetic attraction groove (101) is magnetically attracted.

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