Novel water level probe

Abstract

A novel water level measuring needle comprises a measuring rod, scales are arranged on the measuring rod in the length direction, the novel water level measuring needle further comprises a supporting seat, a sliding hole is formed in the supporting seat, the supporting seat is arranged on the measuring rod in a sliding and sleeving mode through the sliding hole, at least three limiting lug seats are annularly and evenly distributed on the outer wall of the supporting seat, and the supporting rod is hinged to the limiting lug seats through pin shafts. The supporting base is further provided with a limiting screw hole, and the limiting screw is connected with the limiting screw hole in a screwed mode. The novel water level probe is simple in structure and convenient to store and carry.

Description

Technical Field

[0001] The utility model relates to the technical field of water level measuring needles, in particular to a novel water level measuring needle. Background Art

[0002] After the construction of municipal engineering pipeline network is completed, it is often necessary to carry out water closure test, which is generally carried out at the inspection well. After a certain amount of water is injected into the pipeline system and it is still for 24 hours, the water seepage per hour is observed to determine whether the quality of the pipeline construction of this section meets the requirements of engineering specifications. In actual operation, the height of the water level drop in the inspection well per unit time is often used to reverse the actual water seepage. At the same time, because the water closure test standard requirements are high, the allowable drop per unit time (usually 1 hour) is generally about 1 mm, which is difficult to observe. Therefore, a water level probe is often used. After the water level probe is fixed at the wellhead of the inspection well, the height of the probe can be adjusted up and down to make it contact the water surface, and a small concave surface is formed under the action of the water surface tension. When the liquid level drops, the concave surface can be re-adjusted to make it appear again, so that the difference between the two adjustments is the height of the liquid level drop. In actual operation, because the inspection well is often located in the center of the municipal road and there is no good fixed point around it, the water level probe is often difficult to install, which causes inconvenience to actual use.

[0003] Chinese patent document CN210834056U, published (announcement) date: 2020.06.23, discloses a closed water test device for drainage pipes, which discloses a detection device, which includes a leveling mechanism and a water level probe; the leveling mechanism includes a leveling base, a support platform and a level ruler; the leveling base is installed on the wellhead of the upstream inspection well; the support platform is located above the leveling base and is connected to the leveling base through three adjusting bolts, the lower end of each adjusting bolt is rotatably embedded in the installation groove opened on the top surface of the leveling base, and the upper part of each adjusting bolt is connected to the threaded hole opened on the support platform; the level ruler is permanently installed on the support platform; the water level probe is inserted into the through hole opened on the support platform and the leveling base. Its characteristics are simple structure, easy installation and disassembly, and reusable; its disadvantage is that the leveling base and the support platform are used to support and adjust the water level probe, the structure is relatively complex, and it is not convenient to store and carry. Utility Model Content

[0004] The technical problem to be solved by the utility model is: to solve the problems existing in the above-mentioned background technology and to provide a new type of water level measuring needle, which has a simple structure and is easy to store and carry.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is: a new type of water level measuring needle, including a measuring rod, a scale is arranged on the measuring rod along the length direction, and also includes a support seat, the support seat is provided with a sliding hole, the support seat is slidably mounted on the measuring rod through the sliding hole, the outer wall of the support seat is annularly evenly provided with at least three limit ear seats, the support rod and the limit ear seat are hinged by a pin shaft, and a limit screw hole is also provided on the support seat, and the limit screw is screwed to the limit screw hole.

[0006] One end of the support rod is provided with a hinge joint, a hinge hole is provided on the hinge joint, the hinge joint is inserted and installed in the limiting ear seat, and the hinge hole is hinged with the pin shaft on the limiting ear seat.

[0007] An adjusting screw hole is arranged at one end of the supporting rod away from the supporting seat, and the adjusting screw is screwed to the adjusting screw hole.

[0008] The lower end of the measuring rod is provided with a tip, or is equipped with a tip.

[0009] A bubble level is installed on the top of the measuring rod.

[0010] The top of the measuring rod is provided with a mounting screw hole, and the bottom of the bubble level is provided with a screw rod, which is screwed and fixed with the mounting screw hole by threaded cooperation.

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

[0012] 1. The measuring rod of the utility model can slide up and down in the sliding hole of the support seat. The side wall of the support seat is provided with a limit screw hole, and a limit screw is installed on the limit screw hole. When the limit screw is tightened, the head of the limit screw abuts against the measuring rod, thereby limiting the measuring rod. When the limit screw is loosened, the measuring rod can be adjusted. The outer wall of the support seat is evenly distributed with three limit ears, and the limit ears are in an "n" shape. In this way, the support rod can be horizontally unfolded and limited, and flipped and folded downward. When unfolded, it is convenient to support the measuring rod for use, and when flipped and folded downward, it is convenient to store and carry.

[0013] 2. The utility model installs an adjusting screw by screwing on one end of the support rod away from the support seat. When the wellhead of the inspection well is uneven, the level of the support rod is adjusted by the adjusting screw so that the measuring rod is perpendicular to the horizontal plane.

[0014] 3. A bubble level is installed on the top of the measuring rod of the utility model, so that the level of the top surface of the measuring rod can be directly observed. After the top surface of the measuring rod is adjusted to be horizontal, the measuring rod is perpendicular to the horizontal plane. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0016] Figure 1It is a schematic diagram of the overall three-dimensional structure of the utility model.

[0017] Figure 2 It is a three-dimensional structural schematic diagram of the support seat of the utility model.

[0018] Figure 3 It is a three-dimensional structural schematic diagram of the support rod of the utility model.

[0019] Figure 4 This is an exploded view of the utility model.

[0020] Figure 5 This is a state diagram used in the present utility model.

[0021] Figure 6 This is a diagram of the state of the utility model when it is folded and carried.

[0022] Reference numerals

[0023] Support seat 10, sliding hole 11, limiting ear seat 12, limiting screw hole 13, pin shaft 14;

[0024] Measuring rod 20, scale 21, tip 22, mounting screw hole 23;

[0025] Support rod 30, hinge head 31, hinge hole 32, adjustment screw hole 33;

[0026] Limit screw 40, adjustment screw 50

[0027] Bubble level 60, screw 61;

[0028] Inspection well 70. DETAILED DESCRIPTION

[0029] Embodiment 1:

[0030] See also Figure 1A new type of water level measuring needle includes a measuring rod 20, a scale 21 is arranged on the measuring rod 20 along the length direction, and a support seat 10, the support seat 10 is provided with a sliding hole 11, the support seat 10 is slidably mounted on the measuring rod 20 through the sliding hole 11, at least three limiting ear seats 12 are evenly distributed in an annular manner on the outer wall of the support seat 10, the support rod 30 and the limiting ear seat 12 are hinged by a pin 14, and a limiting screw hole 13 is also arranged on the support seat 10, and a limiting screw 40 is screwed with the limiting screw hole 13. The measuring rod 20 can slide up and down in the sliding hole 11 of the support seat 10, and a limiting screw hole 13 is arranged on the side wall of the support seat 10, and a limiting screw 40 is installed on the limiting screw hole 13. When the limiting screw 40 is tightened, the head of the limiting screw 40 abuts against the measuring rod 20, thereby limiting the measuring rod 20. When the limiting screw 40 is loosened, the measuring rod 20 can be adjusted. The outer wall of the support seat 10 is evenly distributed with three limit ear seats 12, and the limit ear seats 12 are in an "n" shape, so that the support rod 30 can be horizontally unfolded and folded downward. Figure 5 , which is convenient for supporting the measuring rod 20 for use. When it is flipped down and folded, see Figure 6 , easy to store and carry.

[0031] Specifically, in this embodiment, see Figure 2 A hinge joint 31 is provided at one end of the support rod 30 , and a hinge hole 32 is provided on the hinge joint 31 . The hinge joint 31 is inserted and installed in the limiting ear seat 12 , and the hinge hole 32 is hinged to the pin shaft 14 on the limiting ear seat 12 .

[0032] Embodiment 2:

[0033] See also Figure 1 , 2 On the basis of the first embodiment, an adjusting screw hole 33 is provided at one end of the support rod 30 away from the support seat 10, and the adjusting screw 50 is screwed to the adjusting screw hole 33. By screwing and installing the adjusting screw 50 at one end of the support rod 30 away from the support seat 10, when the wellhead of the inspection well 70 is uneven, the level of the support rod 30 is adjusted by the adjusting screw 50, so that the measuring rod 20 is perpendicular to the horizontal plane.

[0034] In this embodiment, when measuring the level of the support rods 30 , a level ruler may be placed on the two support rods 30 to measure the level.

[0035] Embodiment three:

[0036] On the basis of the first or second embodiment, the lower end of the measuring rod 20 is provided with a tip 22, or is installed with a tip 22, so as to form a concave surface horizontally during measurement. Figure 1 It is shown that a tip 22 is arranged directly at the lower end of the measuring rod 20 .

[0037] In another solution, a threaded hole may be provided at the lower end of the measuring rod 20 , and a screw rod with a pointed end may be screwed and installed with the threaded hole at the lower end of the measuring rod 20 .

[0038] Embodiment 4:

[0039] See also Figure 1 , 4 On the basis of the above embodiment, a bubble level 60 is installed on the top of the measuring rod 20, so that the level of the top surface of the measuring rod 20 can be directly observed. After the top surface of the measuring rod 20 is adjusted to be horizontal, the measuring rod 20 is perpendicular to the horizontal plane.

[0040] For further information, see Figure 4 The top of the measuring rod 20 is provided with a mounting screw hole 23, and the bottom of the bubble level 60 is provided with a screw rod 61, which is screwed and fixed with the mounting screw hole 23. The above structure facilitates the installation and replacement of the bubble level 60. After the bubble level 60 is installed, the bottom plane of the bubble level 60 abuts against the top plane of the measuring rod 20.

[0041] The working process or principle of the utility model is as follows:

[0042] When using, see Figure 5 , unfold the support rod 30 of the water level measuring needle of the utility model horizontally and place it at the wellhead of the inspection well 70, turn the adjusting screw 50 to adjust the level of the support rod 30, and make the measuring rod 20 perpendicular to the horizontal plane by observing the state of the bubble level 60. Then loosen the limit screw 40, adjust the measuring rod 20 up and down, make the lower end of the measuring rod 20 just against the water surface, tighten the limit screw 40, and then the test can be carried out.

[0043] When storing and carrying, see Figure 6 , take the water level measuring needle of the utility model out of the inspection well 70 as a whole, and flip the support rod 30 downward to facilitate storage and carrying.

Claims

1. A novel water level measuring needle, comprising a measuring rod (20), wherein a scale (21) is provided along the length direction of the measuring rod (20), and wherein: The invention also comprises a support seat (10), wherein the support seat (10) is provided with a sliding hole (11), and the support seat (10) is slidably mounted on the measuring rod (20) through the sliding hole (11); at least three limiting ear seats (12) are evenly distributed in an annular shape on the outer wall of the support seat (10); the support rod (30) and the limiting ear seats (12) are hingedly connected via a pin shaft (14); a limiting screw hole (13) is also provided on the support seat (10), and a limiting screw (40) is screwed to the limiting screw hole (13).

2. A novel water level measuring needle according to claim 1, characterized in that: A hinge joint (31) is provided at one end of the support rod (30), a hinge hole (32) is provided on the hinge joint (31), the hinge joint (31) is inserted and installed in the limiting ear seat (12), and the hinge hole (32) is hinged to a pin shaft (14) on the limiting ear seat (12).

3. A novel water level measuring needle according to claim 1 or 2, characterized in that: An adjusting screw hole (33) is provided at one end of the supporting rod (30) away from the supporting seat (10), and the adjusting screw (50) is screwed to the adjusting screw hole (33).

4. A novel water level measuring needle according to claim 1, characterized in that: The lower end of the measuring rod (20) is provided with a tip (22), or is equipped with a tip (22).

5. A novel water level measuring needle according to claim 1 or 4, characterized in that: A bubble level (60) is installed on the top of the measuring rod (20).

6. A new type of water level measuring needle according to claim 5, characterized in that: The top of the measuring rod (20) is provided with a mounting screw hole (23), and the bottom of the bubble level (60) is provided with a screw rod (61), which is screwed and fixed to the mounting screw hole (23) by threaded engagement.

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