Steel tape flexible calipers with magnetic attraction function

Abstract

The utility model discloses a steel tape flexible caliper with a magnetic attraction function, which plays an auxiliary positioning role when a steel tape is used for measuring length, and comprises a magnetic attraction base and a steel tape clamping device. The magnetic attraction base is controlled by a switch to enable the whole caliper to be communicated with the steel tape and to be attracted to a measured object. A steel tape clamping device is arranged above the magnetic attraction base and controls a clamping plate to move through an adjusting screw rod, and then a steel tape is fixedly clamped between the clamping plate and the top face of the magnetic attraction base. When the steel tape is fixed, the zero position or the to-be-measured length position of the steel tape is flush with the edge of the caliper, and then measurement is carried out. Meanwhile, a flexible material is laid on the clamping surface of the clamping plate and the magnetic attraction base, so that the friction force with the steel tape is increased, and the steel tape is prevented from sliding in the measurement process to generate measurement errors. The device is simple in structure, convenient to use and accurate in measurement result, and reduces the number of operators during measurement of a long measurement object.

Description

TECHNICAL FIELD

[0001] The utility model relates to railway measurement technical field, concretely is a flexible calliper device of steel tape with magnetic attraction function. BACKGROUND

[0002] The turnout product belongs to an assembly, and the types of various rails are very many, and each type of rail needs to be measured in length, and tension needs to be applied when measuring the length, which brings great difficulty to measurement, a large number of people are needed in the measurement process, the measurement intensity is great, cumulative errors are introduced in the process, and the accuracy of measurement is affected. SUMMARY

[0003] In view of the above problems, the utility model provides a flexible calliper device of steel tape with magnetic attraction function, which is an auxiliary measuring device for assisting the steel tape in rail measurement, realizes clamping of one end of the steel tape and fixing between the steel tape and the rail, is convenient to carry, simple to use, and effectively guarantees the accuracy of the measurement data of the steel tape.

[0004] The utility model discloses a flexible calliper device of steel tape with magnetic attraction function, including magnetic attraction base and steel tape clamping device.

[0005] The front side of the magnetic attraction base is a magnetic attraction surface for adsorbing and fixing with the rail. The steel tape clamping device is installed on the top surface of the magnetic attraction base. The steel tape clamping device has a support frame, a rotating screw vertically arranged is threadedly connected to the top surface of the support frame. A handle is fixedly installed at the top end of the rotating screw, and a clamping plate is connected to the bottom end through a bearing. At the same time, a sliding block is designed on the side of the clamping plate and slidably connected with a sliding groove designed on the side support. Thus, the clamping plate can be driven to move downward by rotating the rotating screw through the handle, and the steel tape can be further clamped and prevented between the clamping plate and the top surface of the magnetic attraction base.

[0006] The bottom surface of the clamping plate and the top surface of the magnetic attraction base are paved with flexible pads to prevent the steel tape from being damaged during clamping.

[0007] The utility model has the advantages that:

[0008] 1. The flexible calliper device of steel tape with magnetic attraction function is convenient to carry, simple to use, and effectively guarantees the accuracy of the measurement data of the steel tape.

[0009] 2. The flexible calliper device of steel tape with magnetic attraction function is provided with a magnetic attraction base controlled by a switch, which is convenient for adsorbing and separating on the steel rail and reduces the difficulty of operation.

[0010] 3. The flexible calliper device of steel tape with magnetic attraction function holds the steel tape through flexible materials, which can protect the steel tape from being damaged and prolong the service life of the steel tape. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 The utility model discloses a flexible clamp of steel tape with magnetic attraction function.

[0012] In the drawing,

[0013] 1 - magnetic base 2 - steel tape clamping device 201 - support frame

[0014] 201a - side support 201b - roof beam 202 - clamping adjustment part

[0015] 202a - rotating screw 202b - clamping plate 202c - handle

[0016] 203 - flexible pad Specific implementation

[0017] The utility model will be further explained in detail in combination with the drawings.

[0018] The utility model discloses a flexible clamp of steel tape with magnetic attraction function, including magnetic base 1 and steel tape clamping device 2, as Figure 1 Shown.

[0019] Magnetic base 1 adopts 4T switch type magnetic base. The magnetic surface of magnetic base 1 is used to be set with steel rail, and the magnetic attraction is controlled by switch, realizes the adsorption fixation and separation with steel rail. The direction of the magnetic surface of magnetic base 1 is forward.

[0020] Magnetic base 1 is fixedly installed steel tape clamping device 2 above. Steel tape clamping device 2 includes support frame 201, clamping adjustment part 202 and flexible pad 203. Among them, support frame 201 has side support 201a and roof beam 201b.

[0021] Among them, side support 201a is rectangular plate structure, is set perpendicularly to the top surface of magnetic base 1, and the bottom surface is attached to the top surface of magnetic base 1.

[0022] The end of roof beam 201b has protruding connecting parts on both sides, so that the whole roof beam 201b is T-shaped structure. The end of the roof beam is attached to the top surface of side support 201a, and is connected to the corresponding two threaded holes on the top surface of magnetic base 1 through the two through holes on the connecting parts on both sides of the end of roof beam 201b and the two through holes on the corresponding positions of side support 201a after two bolts are longitudinally inserted through the through holes, to realize the fixation among roof beam 201b, side support 201a and magnetic base 1. And the C-shaped frame is formed between roof beam 201b, side support 201a and the top surface of magnetic base 1, and the opening direction is towards the left side or the right side of magnetic base 1, to ensure that the C-shaped section of C-shaped frame is parallel to the magnetic surface of magnetic base 1.

[0023] The top beam 201b is provided with a threaded hole for mounting the clamping and adjusting part 202. The clamping and adjusting part 202 comprises a rotating screw 202a and a clamping plate 202b. The rotating screw 202a is an externally threaded rod, which is arranged perpendicularly to the magnetic surface of the magnetic base 1 and is threadedly connected to the threaded hole of the top beam 201b. An oval handle 202c is fixedly mounted at the top end of the rotating screw 202a, which is used for holding and rotating the rotating screw 202a. The bottom end of the rotating screw 202a is arranged in the center of the clamping plate 202b, and the rotating screw 202a is connected to the clamping plate 202b through a bearing arranged in the center hole to form a rotating pair. Meanwhile, a dovetail sliding block is arranged in the middle of the side surface of one side of the clamping plate 202b and is slidingly connected to the dovetail groove arranged in the middle of the inner wall surface of the side part. Thus, the clamping plate 202b can be controlled to move up and down along the axial direction of the rotating screw 202a by rotating the rotating screw 202a clockwise or counterclockwise, and the end part of the steel tape arranged between the clamping plate 202b and the bottom plate of the support frame 201 can be clamped by controlling the clamping plate 202b to move downward.

[0024] The flexible pads 203 made of flexible material (hard plastic or nylon) are fixedly arranged on the bottom surface of the clamping plate 202b and the top surface of the magnetic base 1, so that the flexible pads 203 contact the steel tape when the steel tape is clamped, and the contact surface between the flexible pads and the steel tape is roughened to increase the friction between the flexible pads and the steel tape, so that the clamped steel tape is fixed and cannot slide. Meanwhile, the flexible material can prevent damage to the steel tape.

[0025] When the overall structure of the steel tape flexible clamp with the magnetic function is used for assisting the length measurement of a rail, the starting end of the steel tape is first arranged between the clamping plate 202b and the top surface of the magnetic base 1, the clamping plate 202b is controlled to move downward by rotating the rotating screw 202a counterclockwise, the zero position or the measured value position scale line of the steel tape is made to be in front of the top edge of the magnetic base 1, and the zero position or the measured value position scale line of the steel tape is made to be flush with the end surface of the rail when the magnetic device 1 is adsorbed on the end surface of the rail.

[0026] Subsequently, the magnetic device 1 is arranged at the end surface position of the steel rail to be measured, the position of the magnetic device 1 is adjusted so that the bottom surface of the clamped steel tape is attached to the top surface of the rail, and the magnetic switch is turned on at this time, so that the magnetic base 1 is adsorbed and fixed on the end surface of the rail through the magnetic surface.

[0027] Finally, the tension meter pulls the movable end of the steel tape, the steel tape is tensioned according to the requirement, the steel tape is read, and the actual length of the rail is calculated through the correction value.

Claims

1. A flexible caliper for a steel tape measure with magnetic attraction, characterized by: The utility model discloses a magnetic base and a steel tape clamping device. The front side of the magnetic base is a magnetic surface, and the steel tape clamping device is installed on the top surface of the magnetic base; the steel tape clamping device has a support frame, a rotating screw vertically arranged is threadedly connected to the top surface of the support frame, a handle is fixedly installed at the top end of the rotating screw, and the bottom end of the rotating screw is connected to a clamping plate through a bearing; meanwhile, a sliding block is designed on the side of the clamping plate and is slidably connected to a sliding groove designed on the side support in a longitudinal manner.

2. The flexible callipers with magnetic function of claim 1, wherein: The magnetic base is a switch type magnetic base.

3. The flexible caliper for a magnetic steel tape measure of claim 1, wherein: The support frame has side supports and a top beam, is fixed to the top surface of the magnetic base through bolts, and forms a C-shaped frame between the top beam, the side supports and the top surface of the magnetic base, and the opening direction is towards the left side or the right side of the magnetic base.

4. The flexible caliper for a magnetic steel tape measure of claim 1, wherein: Flexible pads are laid on the bottom surface of the clamping plate and the top surface of the magnetic base.

5. The flexible caliper for a magnetic steel tape measure of claim 4, wherein: The opposite surfaces of the clamping plate and the flexible pads on the magnetic base are roughened.

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