Telescopic measuring rod

Abstract

The utility model relates to the technical field of telescopic measuring rods, and discloses a telescopic measuring rod which comprises a first measuring rod, a second measuring rod slidably sleeved on the outer side of the first measuring rod, a third measuring rod slidably sleeved on the outer side of the second measuring rod, and a conical block fixedly connected with one end of the first measuring rod. Calibrated scales are arranged in the outer sides of the first measuring rod, the second measuring rod and the third measuring rod in a sliding mode, connecting plates are fixedly arranged on the two sides of the calibrated scales, and the multiple calibrated scales are installed in the outer sides of the first measuring rod, the second measuring rod and the third measuring rod through the connecting plates in a sliding mode during use. Then the second measuring rod is installed on the outer side of the first measuring rod in a sliding mode, meanwhile, the third measuring rod is installed on the outer side of the second measuring rod in a sliding mode, and when the water level is measured, the first measuring rod and the second measuring rod are fixed through the hand screwing bolt after being slid to proper positions, so that the water level is measured.

Description

A telescopic measuring rod Technical Field

[0001] This utility model relates to the field of telescopic measuring rod technology, specifically a telescopic measuring rod. Background Technology

[0002] The hydrology and water conservancy industry belongs to the environmental protection industry. It studies and solves the water cycle process, environmental engineering, environmental policy and environmental planning, especially the sediments of rivers and reservoirs, river pollution, urban drainage, etc., and conducts research on numerical models and physical models. Hydrologists and water conservancy workers often need to use measuring rods to measure the depth of river water. Currently, some telescopic measuring rods on the market have relatively simple structures. After long-term use, the scale lines on the surface of the measuring rod are easily worn, making the measuring rod unusable. Therefore, a telescopic measuring rod is proposed. Summary of the Invention

[0003] The purpose of this utility model is to provide a telescopic measuring rod to solve the problem mentioned in the background art that some telescopic measuring rods on the market have relatively simple structures, and the scale lines on the surface of the measuring rod are easily worn after long-term use, making the measuring rod unusable.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a telescopic measuring rod, comprising a first measuring rod, a second measuring rod slidably sleeved on the outer side of the first measuring rod, a third measuring rod slidably sleeved on the outer side of the second measuring rod, a conical block fixedly connected to one end of the first measuring rod, a scale slidably disposed on the inner side of the outer side of the first, second, and third measuring rods, connecting plates fixedly disposed on both sides of the scale and slidably mounted on the inner side of the outer side of the first, second, and third measuring rods respectively, a sealing structure disposed at one end of the first, second, and third measuring rods, and a hand-tightening bolt slidably passing through the outer side of the second and third measuring rods, one end of the hand-tightening bolt being threadedly connected to the first and second sealing plates.

[0005] Preferably, the sealing structure includes a first sealing plate, one end of the first measuring rod is provided with the first sealing plate, one side of the first sealing plate is provided with a first annular plate and the first annular plate is threadedly connected to one end of the inside of the first measuring rod, one end of the second measuring rod is provided with a second sealing plate, one side of the second sealing plate is fixedly provided with a second annular plate and the second annular plate is threadedly connected to a section of the inside of the second measuring rod, two third sealing plates are fixedly provided on the outer sides of both the second sealing plate and the first sealing plate and are slidably installed on the inner walls of the second measuring rod and the third measuring rod, one side of the third measuring rod is provided with a third sealing plate, one side of the third sealing plate is fixedly provided with a third annular plate and the third annular plate is threadedly connected to one end of the inside of the third measuring rod.

[0006] Preferably, the outer inner walls of the first, second, and third measuring rods are all provided with sliding grooves, and the scale and connecting plate are slidably installed inside the sliding grooves.

[0007] Preferably, a limiting protrusion is also included, and the inner walls of the second and third measuring rods are provided with limiting grooves, the size of which is adapted to the limiting grooves.

[0008] Preferably, both the third measuring rod and the second measuring rod have through holes on their outer sides, and the hand-tightening bolt slides through the through holes.

[0009] Preferably, the first sealing plate, the second sealing plate, and the third sealing plate are all provided with threaded through holes, and the size of the hand-tightening bolt is adapted to the threaded through holes.

[0010] Compared with the prior art, the present invention, by adopting the above technical solution, has the following technical effects:

[0011] This utility model incorporates a first measuring rod, a second measuring rod, a third measuring rod, and a scale. In use, multiple scales are slidably installed on the outer sides of the first, second, and third measuring rods via connecting plates. A first sealing plate and a second sealing plate are then installed at one end of the first and second measuring rods, respectively, to limit their movement and facilitate the disassembly and assembly of the scales and connecting plates. When measuring water level, the first and second measuring rods are slid to the appropriate positions and then secured by hand-tightening bolts, thus enabling water level measurement. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 is a side view of the present invention.

[0014] Figure 2 is a cross-sectional view of the present invention;

[0015] Figure 3 is a schematic diagram of the connection structure between the third sealing plate and the hand-tightening bolt of this utility model;

[0016] Figure 4 is an enlarged structural schematic diagram of A in Figure 2 of this utility model.

[0017] Explanation of reference numerals in the attached drawings: 1. First measuring rod; 2. Second measuring rod; 3. Third measuring rod; 4. Conical block; 5. Scale; 6. Connecting plate; 7. First sealing plate; 8. First annular plate; 9. Second sealing plate; 10. Second annular plate; 11. Limiting protrusion; 12. Third sealing plate; 13. Third annular plate; 14. Hand-tightening bolt. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] It should be noted that the structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which this application can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size should still fall within the scope of the technical content disclosed in this application, provided that they do not affect the effects and purposes that this application can produce.

[0020] Example

[0021] In the current market, some telescopic measuring rods have relatively simple structures, and after prolonged use, the scale lines on the surface of the measuring rod are easily worn away, rendering the measuring rod unusable.

[0022] Please refer to Figures 1-4. This utility model provides a technical solution: a telescopic measuring rod, including a first measuring rod 1, a second measuring rod 2 slidably sleeved on the outer side of the first measuring rod 1, a third measuring rod 3 slidably sleeved on the outer side of the second measuring rod 2, a conical block 4 fixedly connected to one end of the first measuring rod 1, a scale 5 slidably arranged on the inner side of the outer side of the first measuring rod 1, the second measuring rod 2, and the third measuring rod 3, and connecting plates 6 fixedly arranged on both sides of the scale 5, and the connecting plates 6 are respectively slidably installed on the inner side of the outer side of the first measuring rod 1, the second measuring rod 2, and the third measuring rod 3, and a sealing structure is provided at one end of the first measuring rod 1, the second measuring rod 2, and the third measuring rod 3. Both the measuring rod 2 and the third measuring rod 3 have hand-tightened bolts 14 that slide through their outer sides, and one end of the hand-tightened bolts 14 is threadedly connected to the first sealing plate 7 and the second sealing plate 9. In use, multiple scales 5 are slidably installed inside the outer sides of the first measuring rod 1, the second measuring rod 2 and the third measuring rod 3 respectively through the connecting plate 6. Then, the second measuring rod 2 is slidably installed outside the first measuring rod 1, and the third measuring rod 3 is slidably installed outside the second measuring rod 2. The sealing structure then limits the position. When measuring the water level, the first measuring rod 1 and the second measuring rod 2 are slid to the appropriate position and then fixed by the hand-tightened bolts 14 to measure the water level.

[0023] The sealing structure includes a first sealing plate 7. A first sealing plate 7 is provided at one end of a first measuring rod 1. A first annular plate 8 is provided on one side of the first sealing plate 7 and is threadedly connected to one end of the first measuring rod 1. A second sealing plate 9 is provided at one end of a second measuring rod 2. A second annular plate 10 is fixedly provided on one side of the second sealing plate 9 and is threadedly connected to a section of the inside of the second measuring rod 2. Two third sealing plates 12 are fixedly provided on the outer sides of both the second sealing plate 9 and the first sealing plate 7, and the third sealing plates 12 are slidably installed on the inner walls of the second measuring rod 2 and the third measuring rod 3. A third sealing plate 12 is provided on one side of the third measuring rod 3, and a third sealing plate 12 is fixedly provided on one side of the third sealing plate 12. The annular plate 13 and the third annular plate 13 are threaded to one end of the inner part of the third measuring rod 3. When the first measuring rod 1, the second measuring rod 2 and the third measuring rod 3 are connected, the first sealing plate 7 is installed at one end of the first measuring rod 1 through the first annular plate 8, and at the same time the second sealing plate 9 is installed at one end of the second measuring rod 2 through the second annular plate 10, thereby limiting the position. The first measuring rod 1 and the second measuring rod 2 are damped and slid through the second sealing plate 9 and the first sealing plate 7. At the same time, the third sealing plate 12 is installed at one end of the third measuring rod 3 through the third annular plate 13. After the measurement is completed, the hand-tightened bolt 14 is removed and connected to the third sealing plate 12, and then the first measuring rod 1, the second measuring rod 2 and the third measuring rod 3 are stored.

[0024] The outer inner walls of the first measuring rod 1, the second measuring rod 2, and the third measuring rod 3 are all provided with sliding grooves. The scale 5 and the connecting plate 6 are slidably installed inside the sliding grooves. Measurements are made through the scale 5 and the connecting plate 6, which facilitates replacement.

[0025] The inner walls of the second measuring rod 2 and the third measuring rod 3 are both provided with limiting grooves. The size of the limiting protrusion 11 is adapted to the limiting grooves, and the first sealing plate 7 and the second sealing plate 9 are limited by the limiting protrusion 11.

[0026] Both the third measuring rod 3 and the second measuring rod 2 have through holes on their outer sides. The hand-tightening bolt 14 slides through the through holes and limits and fixes the first measuring rod 1 and the second measuring rod 2 by means of the hand-tightening bolt 14.

[0027] The first sealing plate 7, the second sealing plate 9, and the third sealing plate 12 all have threaded through holes inside. The size of the hand-tightening bolt 14 is adapted to the threaded through holes, so that it is convenient to limit the position by hand-tightening the bolt 14.

[0028] The working principle or structural principle is as follows: During use, multiple scales 5 are slidably installed on the outer sides of the first measuring rod 1, the second measuring rod 2, and the third measuring rod 3 respectively via connecting plates 6. Then, the first sealing plate 7 is installed on one end of the first measuring rod 1 via the first annular plate 8, and the second sealing plate 9 is installed on one end of the second measuring rod 2 via the second annular plate 10, thereby limiting the position and facilitating the disassembly and assembly of the scales 5 and connecting plates 6 for easy replacement later. Then, the second measuring rod 2 is slidably installed on the outside of the first measuring rod 1, and the third measuring rod 3 is slidably installed on the outside of the second measuring rod 2. When measuring the water level, after sliding the first measuring rod 1 and the second measuring rod 2 to the appropriate position, they are fixed by hand-tightening bolts 14 to measure the water level. After the measurement is completed, the hand-tightening bolts 14 are removed and connected to the third sealing plate 12, and then the first measuring rod 1, the second measuring rod 2, and the third measuring rod 3 are stored away.

[0029] Those skilled in the art will understand that the features described in the various embodiments and / or claims of this utility model can be combined or combined in various ways, even if such combinations or combinations are not explicitly described in this utility model. In particular, the features described in the various embodiments and / or claims of this utility model can be combined or combined in various ways without departing from the spirit and teachings of this utility model. All such combinations and / or combinations fall within the scope of this utility model.

Claims

1. A telescopic measuring rod, comprising a first measuring rod (1), characterized in that: The first measuring rod (1) has a second measuring rod (2) slidingly sleeved on its outer side, and the second measuring rod (2) has a third measuring rod (3) slidingly sleeved on its outer side. A conical block (4) is fixedly connected to one end of the first measuring rod (1). A scale (5) is slidably installed on the outer side of the first measuring rod (1), the second measuring rod (2), and the third measuring rod (3). A connecting plate (6) is fixedly installed on both sides of the scale (5), and the connecting plate (6) is slidably installed on the outer inner wall of the first measuring rod (1), the second measuring rod (2), and the third measuring rod (3). A sealing structure is provided at one end of the first measuring rod (1), the second measuring rod (2), and the third measuring rod (3). A hand-tightening bolt (14) slides through the outer side of the second measuring rod (2) and the third measuring rod (3), and one end of the hand-tightening bolt (14) is threadedly connected to the first sealing plate (7) and the second sealing plate (9).

2. A telescopic measuring rod according to claim 1, characterized in that: The sealing structure includes a first sealing plate (7), a first sealing plate (7) is provided at one end of the first measuring rod (1), a first annular plate (8) is provided on one side of the first sealing plate (7) and the first annular plate (8) is threaded to one end of the first measuring rod (1), a second sealing plate (9) is provided at one end of the second measuring rod (2), a second annular plate (10) is fixedly provided on one side of the second sealing plate (9) and the second annular plate (10) is threaded to one section of the second measuring rod (2), two third sealing plates (12) are fixedly provided on the outer sides of the second sealing plate (9) and the first sealing plate (7), and the third sealing plates (12) are slidably installed on the inner walls of the second measuring rod (2) and the third measuring rod (3), a third sealing plate (12) is provided on one side of the third measuring rod (3), a third annular plate (13) is fixedly provided on one side of the third sealing plate (12) and the third annular plate (13) is threaded to one end of the third measuring rod (3).

3. A telescopic staff according to claim 1, characterised in that: The outer inner walls of the first measuring rod (1), the second measuring rod (2) and the third measuring rod (3) are all provided with sliding grooves, and the scale (5) and the connecting plate (6) are slidably installed inside the sliding grooves.

4. A telescopic measuring rod according to claim 2, characterized in that: It also includes a limiting protrusion (11), and the inner walls of the second measuring rod (2) and the third measuring rod (3) are provided with limiting grooves. The size of the limiting protrusion (11) is adapted to the limiting groove.

5. A telescopic measuring rod according to claim 1, characterized in that: Both the third measuring rod (3) and the second measuring rod (2) have through holes on their outer sides, and the hand-tightening bolt (14) slides through the through holes.

6. A telescopic staff according to claim 2, characterised in that: The first sealing plate (7), the second sealing plate (9) and the third sealing plate (12) are all provided with threaded through holes, and the size of the hand-tightening bolt (14) is adapted to the threaded through holes.

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