Electric clearance distance measuring scale

Abstract

The utility model belongs to the technical field of measuring rulers, particularly relates to an electrical clearance distance measuring ruler, and aims to solve the problems that an existing measuring ruler is easy to bend, the measuring range of a fixed ruler is limited, and remote measurement is inconvenient to operate. A fixed block is slidably connected into the moving strip, and a clockwork spring is installed at the end, close to the fixed block, in the containing strip. A sliding groove corresponding to the clockwork spring is formed in one end of the interior of the containing strip, and a circular groove is formed in the end, away from the sliding groove, of the top of the containing strip and communicates with the sliding groove. Rectangular holes in corresponding sliding connection with the fixing blocks are formed in the moving strips, and the ends, away from the fixing blocks, of the moving strips are in threaded connection with fixing bolts. The utility model has the advantages that the fixed length is convenient to adjust, the bending is convenient to avoid, and a single person can conveniently unfold and fold.

Description

Technical Field

[0001] This utility model relates to the field of measuring ruler technology, specifically to an electrical clearance distance measuring ruler. Background Technology

[0002] When installing and using electrical equipment, it is necessary to set it according to the requirements of relevant specifications. Sufficient safe distances must be maintained between multiple electrical devices. Therefore, during the acceptance and inspection after the electrical equipment is installed, the gaps between the devices need to be checked to see if they meet the relevant installation requirements. A ruler is a common measuring device.

[0003] A pole electrical distance measuring device, disclosed in CN115727738A, includes a telescopic measuring rod and a measuring ruler. The telescopic measuring rod has insulation devices at at least at both ends. A housing for the measuring ruler is mounted on the telescopic measuring rod, with the starting end of the ruler strip connected to the first end of the telescopic measuring rod. The distance L from the housing to the second end of the telescopic measuring rod is also specified. Therefore, when measuring the electrical distance between the pole and the jumper, the ruler strip changes length as the telescopic measuring rod extends or retracts. After the telescopic measuring rod is adjusted, the sum of the distance L from the starting end of the ruler strip to the housing and the distance L from the housing to the second end of the telescopic measuring rod represents the actual electrical distance between the pole and the jumper.

[0004] The disclosed patent requires users to adjust the length of the telescopic measuring rods sequentially before using them in combination. The distance can only be determined by observing the scale on the measuring ruler. This results in numerous steps and a lack of intuitive measurement. For measuring different distances, adjustments are needed each time, which is inconvenient. Furthermore, the multi-section telescopic measuring rod is prone to bending due to gravity. Since the measuring ruler moves according to the distance of the telescopic measuring rod, inaccurate measurements are easily caused by bending. The length of the telescopic measuring rod is limited for longer distances, and increasing its length would result in an excessively large size. Longer distances also increase the likelihood of bending and tilting, with the degree of bending increasing with distance, leading to decreased measurement accuracy. Additionally, unfolding and storing the multi-section telescopic tube is inconvenient. Utility Model Content

[0005] Therefore, this utility model provides an electrical clearance distance measuring ruler to solve the problems in the prior art, such as the measurement not being intuitive enough, the adjustment range being limited, the tendency to bend at long distances, and the inconvenience of operation at long distances.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] An electrical clearance distance measuring ruler includes a receiving bar, a movable bar slidably connected to the top of the receiving bar, a fixed block slidably connected inside the movable bar, and a spring-loaded spring installed inside the receiving bar near the fixed block.

[0008] The inner end of the receiving bar is provided with a groove corresponding to the spring, and the top of the receiving bar away from the groove is provided with a circular groove, which is connected to the groove.

[0009] The movable bar has a rectangular hole that is slidably connected to the fixed block, and a fixing bolt is threaded to the end of the movable bar away from the fixed block.

[0010] A measuring tape is arranged around the outer wall of the spring, and a rotating rod is fixedly connected to the center of the spring. An inclined roller is rotatably connected at the junction of the circular groove and the sliding groove.

[0011] Furthermore, the side cross-section of the movable strip is L-shaped, the top of the receiving strip and the bottom of the movable strip are slidably connected to each other, and scales are provided on both sides of the receiving strip and the movable strip.

[0012] Furthermore, one end of the fixed block is fixedly connected to the end of the receiving strip near the slide groove, and the bottom of the rotating rod is rotatably connected to the inside of the slide groove.

[0013] Furthermore, a knob is installed at the top of the rotating rod through the interior of the fixing block. The end of the rotating rod near the receiving strip is prismatic. The outer wall of the rotating rod is sleeved with the fixing block. A slot is opened inside the circular groove to engage with one end of the fixing block.

[0014] Furthermore, a magnetic block is fixedly connected to the end of the measuring tape away from the spring, and the outer wall of the measuring tape slides around the outer wall of the inclined roller and is slidably connected to the inside of the circular groove.

[0015] Furthermore, the end of the measuring tape connected to the magnetic block passes through the interior of one end of the receiving strip, and the end of the receiving strip away from the spring is provided with a receiving groove corresponding to the magnetic block.

[0016] Furthermore, the width of the circular groove corresponds to the size of the fixing bolt, and one end of the fixing bolt passes through the interior of the moving strip and fits against the top of the measuring tape.

[0017] This utility model has the following advantages:

[0018] 1. Release the pressure between the fixing bolt and the inside of the slide, so that the receiving strip and the moving strip can slide against each other. Then, adjust the distance between the receiving strip and the moving strip according to the required length. Then, rotate the fixing bolt to achieve compression and fixation. This allows for easy adjustment according to different usage lengths. At the same time, by fixing the length of the receiving strip and the moving strip, various length spacing requirements can be met during testing. It can also prevent the measuring tape from bending easily and make it easy to adjust the size and place it in some narrow spaces for spacing testing.

[0019] 2. The magnetic block can be easily attached to the equipment and fixed together, making it convenient for the inspector to pull the tape measure straight. It can also be fixed to the equipment by one end of the bent moving strip, making it easy to pull the tape measure. When it is time to store, the fixing bolt can be easily rotated in the opposite direction to release the tape measure. The tape measure can be easily stored by a spring. It can be operated by a single inspector without the need for cooperation with other personnel, making measurement and storage more convenient. Attached Figure Description

[0020] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0021] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0022] Figure 1 A schematic diagram of an electrical clearance distance measuring ruler provided by this utility model;

[0023] Figure 2 A top view of an electrical clearance distance measuring ruler provided by this utility model;

[0024] Figure 3 A schematic diagram of the unfolded and used structure of an electrical clearance distance measuring ruler provided by this utility model;

[0025] Figure 4 A schematic diagram of the internal structure of the receiving strip of an electrical clearance distance measuring ruler provided by this utility model;

[0026] Figure 5 A schematic diagram of the moving bar structure of an electrical clearance distance measuring ruler provided by this utility model.

[0027] In the diagram: 1. Receiving bar; 101. Circular groove; 102. Slide groove; 103. Receiving groove; 2. Moving bar; 201. Rectangular hole; 202. Fixing bolt; 3. Fixing block; 301. Rotating rod; 4. Spring; 401. Measuring tape; 402. Magnetic block; 403. Inclined roller. Detailed Implementation

[0028] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0029] refer to Figure 1-5 An electrical clearance measuring ruler is shown, comprising a receiving bar 1, a movable bar 2 slidably connected to the top of the receiving bar 1, a fixed block 3 slidably connected inside the movable bar 2, and a spring 4 installed inside the receiving bar 1 near the fixed block 3; a groove 102 corresponding to the spring 4 is opened at one end inside the receiving bar 1, and a circular groove 101 is opened at the top of the receiving bar 1 away from the groove 102, the circular groove 101 and the groove 102 are interconnected; a rectangular hole 201 corresponding to the fixed block 3 is opened inside the movable bar 2, and a fixing bolt 202 is threadedly connected to the end of the movable bar 2 away from the fixed block 3; a measuring tape 401 is arranged around the outer wall of the spring 4, and a rotating rod 301 is fixedly connected to the center of the spring 4; an inclined roller 403 is rotatably connected at the connection between the circular groove 101 and the groove 102.

[0030] refer to Figure 1 , Figure 5As shown, the side cross-section of the movable strip 2 is L-shaped. The top of the receiving strip 1 and the bottom of the movable strip 2 are slidably connected to each other. Both sides of the receiving strip 1 and the movable strip 2 are provided with scales. The width of the circular groove 101 corresponds to the size of the fixing bolt 202. One end of the fixing bolt 202 passes through the interior of the movable strip 2 and is in contact with the top of the measuring tape 401. The fixing bolt 202 can be rotated to release the compression between the fixing bolt 202 and the inside of the groove 102, thereby allowing the receiving strip 1 and the movable strip 2 to slide against each other. The distance between the receiving strip 1 and the movable strip 2 can be adjusted according to the required length. The fixing bolt 202 is then rotated to achieve compression fixation. The distance between the receiving strip 1 and the movable strip 2 can be easily adjusted according to different usage lengths.

[0031] refer to Figure 2 , Figure 4 As shown, one end of the fixed block 3 is fixedly connected to the end of the receiving strip 1 near the slide groove 102. The bottom of the rotating rod 301 is rotatably connected to the inside of the slide groove 102. The top of the rotating rod 301 is fitted with a knob through the inside of the fixed block 3. The end of the rotating rod 301 near the receiving strip 1 is prismatic. The outer wall of the rotating rod 301 is sleeved with the fixed block 3. The inside of the circular groove 101 has a corresponding slot that engages with one end of the fixed block 3. When the spring 4 cannot be fully retracted at once, the engagement between the rotating rod 301 and the inside of the circular groove 101 can be released. Then, rotating the rotating rod 301 causes the spring 4 to rotate, which tightens the spring 4 and drives the tape measure 401 to rewind, completing the retraction. This allows for convenient operation by a single person without the need for cooperation with other personnel, making measurement and retraction more convenient.

[0032] refer to Figure 1 , Figure 3 As shown, a magnetic block 402 is fixedly connected to the end of the measuring tape 401 away from the spring 4. The outer wall of the measuring tape 401 slides around the outer wall of the inclined roller 403 and is slidably connected to the inside of the circular groove 101. The end of the measuring tape 401 connected to the magnetic block 402 passes through the inside of one end of the receiving strip 1. The end of the receiving strip 1 away from the spring 4 has a receiving groove 103 corresponding to the magnetic block 402, which can easily attract and fix the magnetic block 402 to the electrical equipment, making it convenient for the testing personnel to pull the measuring tape 401 to straighten. It can also be fixed to the equipment by one end of the bent moving strip 2, making it convenient to pull the measuring tape 401 to straighten. Moreover, when it is necessary to store it, the fixing bolt 202 can be rotated in the opposite direction to release the fixing of the measuring tape 401, and the measuring tape 401 can be easily driven to be stored by the spring 4.

[0033] Working Principle: During use, the spacing of electrical equipment can be easily checked through the scale on the side of the receiving strip 1. If the distance is insufficient, the fixing bolt 202 can be easily rotated to release the compression between the fixing bolt 202 and the slide groove 102, allowing the receiving strip 1 and the moving strip 2 to slide relative to each other. The distance between the receiving strip 1 and the moving strip 2 can then be adjusted according to the required length. Rotating the fixing bolt 202 again secures the strip. This allows for convenient adjustment of the spacing between the receiving strip 1 and the moving strip 2 according to different usage lengths. Furthermore, by fixing the lengths of the receiving strip 1 and the moving strip 2, various length and spacing requirements can be met during testing. To prevent the measuring tape 401 from easily bending, it is convenient to adjust its size and place it in some narrow spaces for spacing testing. At the same time, when testing some electrical equipment at a distance, the fixing bolt 202 can be easily rotated to release the pressure on the measuring tape 401. Then, the magnetic block 402 at one end of the measuring tape 401 can be easily pulled to pull the measuring tape 401 out of its winding with the spring 4, and at the same time, the spring 4 is tightened. When the combined length of the measuring tape 401 and the receiving strip 1 reaches the required distance, the fixing bolt 202 can be easily rotated again to press the measuring tape 401 inside the slide groove 102, so that the measuring tape 401 is fixed and convenient for testing.

[0034] The fixing bolt 202 presses against the measuring tape 401 inside the slide groove 102, thus fixing the measuring tape 401 and fixing the length of the device, which facilitates testing. It also allows the magnetic block 402 to be easily attracted and fixed to the electrical equipment, making it convenient for the testing personnel to pull the measuring tape 401 straight. Furthermore, one end of the bent moving strip 2 can be interlocked with the equipment, facilitating the straightening of the measuring tape 401. When storage is required, the fixing bolt 202 can be easily rotated in the opposite direction to release the fixing of the measuring tape 401, allowing the spring 4 to easily drive the measuring tape 401 for storage. If the spring 4 cannot retract the measuring tape completely in one go, the interlocking between the rotating rod 301 and the circular groove 101 can be released, allowing the rotating rod 301 to rotate and the spring 4 to tighten, thus rewinding the measuring tape 401 and completing the storage. This allows for convenient single-person operation without the need for cooperation with other personnel, making measurement and storage more convenient.

[0035] Although the present invention has been described in detail above with general descriptions and specific embodiments, some modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, all such modifications or improvements made without departing from the spirit of the present invention fall within the scope of protection claimed by the present invention.

Claims

1. An electrical clearance distance measuring ruler, comprising a receiving bar (1), characterized in that, The top of the receiving bar (1) is slidably connected to a moving bar (2), and a fixed block (3) is slidably connected inside the moving bar (2). A spring-loaded spring (4) is installed inside the receiving bar (1) near the fixed block (3). The inner end of the receiving bar (1) is provided with a groove (102) corresponding to the spring spring (4), and the top of the receiving bar (1) away from the groove (102) is provided with a circular groove (101), and the circular groove (101) and the groove (102) are connected to each other. The movable bar (2) has a rectangular hole (201) that is slidably connected to the fixed block (3) inside. The end of the movable bar (2) away from the fixed block (3) is threaded with a fixing bolt (202). A measuring tape (401) is arranged around the outer wall of the spring (4), and a rotating rod (301) is fixedly connected to the center of the spring (4). An inclined roller (403) is rotatably connected at the junction of the circular groove (101) and the sliding groove (102).

2. The electrical clearance distance measuring ruler according to claim 1, characterized in that, The side section of the moving strip (2) is L-shaped. The top of the receiving strip (1) and the bottom of the moving strip (2) are slidably connected to each other, and scales are provided on both sides of the receiving strip (1) and the moving strip (2).

3. The electrical clearance measuring ruler according to claim 1, characterized in that, One end of the fixed block (3) is fixedly connected to the end of the receiving strip (1) near the slide groove (102), and the bottom of the rotating rod (301) is rotatably connected to the inside of the slide groove (102).

4. The electrical clearance distance measuring ruler according to claim 1, characterized in that, The top of the rotating rod (301) is fitted with a knob that passes through the interior of the fixing block (3). The end of the rotating rod (301) near the receiving strip (1) is prismatic. The outer wall of the rotating rod (301) is sleeved with the fixing block (3). The interior of the circular groove (101) has a slot that is corresponding to one end of the fixing block (3).

5. The electrical clearance measuring ruler according to claim 1, characterized in that, A spring-loaded spring (4) is installed inside the receiving strip (1) near the fixed block (3). A magnetic block (402) is fixedly connected to the end of the measuring tape (401) away from the spring-loaded spring (4). The outer wall of the measuring tape (401) slides around the outer wall of the inclined roller (403) and is slidably connected to the inside of the circular groove (101).

6. The electrical clearance distance measuring ruler according to claim 1, characterized in that, The end of the measuring tape (401) connected to the magnetic block (402) passes through the interior of one end of the receiving strip (1), and the end of the receiving strip (1) away from the spring (4) is provided with a receiving groove (103) corresponding to the magnetic block (402).

7. The electrical clearance distance measuring ruler according to claim 1, characterized in that, The width of the circular groove (101) corresponds to the size of the fixing bolt (202), and one end of the fixing bolt (202) passes through the interior of the moving strip (2) and fits against the top of the measuring tape (401).

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