Construction engineering detection ruler with self-locking structure

Abstract

The utility model relates to the technical field of constructional engineering, in particular to a constructional engineering detection ruler with a self-locking structure, which comprises a winding drum, a fixing frame and a flexible ruler are arranged on the winding drum, a testing head is arranged on the flexible ruler, a buzzer is electrically arranged on the testing head, the buzzer is fixed on the winding drum, a self-locking mechanism is fixed on the fixing frame, and the self-locking mechanism is fixed on the flexible ruler. The self-locking mechanism comprises a plurality of fixing rods, the fixing rods are fixed to the fixing frame, a square barrel is fixed to the fixing rods jointly, the flexible rule penetrates through the square barrel, and first extrusion plates are symmetrically arranged on the two sides of the flexible rule. When the flexible rule is used, after the testing head is in contact with the water surface and is short-circuited, the two first extrusion plates are close to each other until the flexible rule is clamped, so that the height of the testing head is fixed, at the moment, operation such as liberating both hands and recording data of working personnel is facilitated, the number investment of the working personnel can be reduced, and the labor cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of construction engineering, in particular to a ruler for construction engineering detection with a self-locking structure. Background Art

[0002] In construction engineering, when detecting the water level of a foundation pit, a ruler device for detecting the water level of a building foundation pit, also called a steel tape water level gauge, is used. As Figure 1 shown, it mainly includes a winding drum 1, a fixed frame 2, a flexible ruler 3 and a test head 17. The winding drum 1 is rotatably arranged on the fixed frame 2. Both ends of the flexible ruler 3 are respectively fixed on the winding drum 1 and the test head 17. A buzzer is electrically connected to the test head 17, and the buzzer is fixed on the winding drum 1. When in use, the winding drum 1 is manually rotated to release the flexible ruler 3 wound on the winding drum 1. When the test head 17 touches the water in the foundation pit, the test head 17 will be short-circuited. At this time, the buzzer will give an alarm, and the value on the flexible ruler 3 can be read to obtain the water level in the foundation pit. However, in actual operation, the staff has to continuously control the rotation of the winding drum 1. After the buzzer gives an alarm, it is necessary to manually ensure the fixation of the winding drum 1, that is, it is necessary to manually ensure the fixation of the height of the test head 17, which will occupy the staff and the staff cannot perform other operations. This undoubtedly requires an increase in the number of staff. Therefore, a ruler for construction engineering detection with a self-locking structure is needed to meet the requirements. Summary of the Utility Model

[0003] The purpose of the utility model is to solve the defect that the height of the test head cannot be locked when the ruler device for detecting the water level of a building foundation pit in the prior art is in use, and to propose a ruler for construction engineering detection with a self-locking structure.

[0004] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0005] Design a ruler for construction engineering detection with a self-locking structure, including a winding drum, a fixed frame and a flexible ruler are arranged on the winding drum, a test head is arranged on the flexible ruler, a buzzer is electrically arranged on the test head, and the buzzer is fixed on the winding drum. A self-locking mechanism is fixed on the fixed frame. The self-locking mechanism includes a plurality of fixed rods, and the plurality of fixed rods are all fixed on the fixed frame. A square tube is commonly fixed on the plurality of fixed rods. The flexible ruler penetrates through the square tube. First pressing plates are symmetrically arranged on both sides of the flexible ruler. An electric telescopic rod is fixed on each first pressing plate. Two holes are penetrated through the square tube. Each electric telescopic rod penetrates through the hole and is fixed with a reinforcing plate. The reinforcing plate is fixed on two of the fixed rods.

[0006] Preferably, two guide rollers are symmetrically fixed on the square tube, and the two guide rollers are arranged on both sides of the flexible ruler.

[0007] Preferably, a storage mechanism is fixed on the square tube.

[0008] Preferably, the storage mechanism includes a fixing plate which is fixed on the square tube, and a groove is provided on the fixing plate.

[0009] Preferably, an anti-rotation mechanism is jointly fixed on the fixing plate and the winding drum.

[0010] Preferably, the anti-rotation mechanism includes two connecting ropes. One ends of the two connecting ropes are fixed on the fixing plate, and a second pressing plate is fixed on the other ends. Two threaded rods penetrate through and are rotatably provided on the second pressing plate. Cylinders are threadedly sleeved on the two threaded rods, and the two cylinders are both fixed on the winding drum.

[0011] Preferably, a protective pad is fixed on the second pressing plate between the two threaded rods.

[0012] A ruler for building engineering detection with a self-locking structure proposed by the present utility model has the beneficial effects that when the ruler for building engineering detection with a self-locking structure is in use, after the test head contacts the water surface and gets short-circuited, the two first pressing plates approach each other until the flexible ruler is clamped, so as to fix the height of the test head. At this time, it is convenient for the staff to free their hands to record data and other operations, which can reduce the input of the number of staff and lower the labor cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a schematic structural diagram of an existing ruler device for detecting the water level of a building foundation pit;

[0014] Figure 2 is a front view of a ruler for building engineering detection with a self-locking structure proposed by the present utility model;

[0015] Figure 3 is a left view of a ruler for building engineering detection with a self-locking structure proposed by the present utility model;

[0016] Figure 4 is a rear view of a ruler for building engineering detection with a self-locking structure proposed by the present utility model;

[0017] Figure 5 is an enlarged view of part A in a ruler for building engineering detection with a self-locking structure proposed by the present utility model; Figure 2 in;

[0018] Figure 6 is a top view of the self-locking mechanism and the storage mechanism of a ruler for building engineering detection with a self-locking structure proposed by the present utility model;

[0019] Figure 7Structural schematic diagram of the self-locking mechanism of a ruler for construction engineering inspection with a self-locking structure proposed by the present utility model during use;

[0020] Figure 8 Left view of the ruler for construction engineering inspection with a self-locking structure proposed by the present utility model after the test head is retracted.

[0021] In the figure: 1, winding drum; 2, fixing frame; 3, flexible ruler; 4, square tube; 5, fixing rod; 6, guide roller; 7, reinforcement plate; 8, electric telescopic rod; 9, hole; 10, first pressing plate; 11, fixing plate; 12, connecting rope; 13, second pressing plate; 14, cylinder; 15, threaded rod; 16, groove; 17, test head. Specific embodiments

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments.

[0023] Embodiment 1: Refer to Figure 2-7 , a ruler for construction engineering inspection with a self-locking structure, including a winding drum 1. A fixing frame 2 and a flexible ruler 3 are provided on the winding drum 1. A test head 17 is provided on the flexible ruler 3. A buzzer is electrically provided on the test head 17. The buzzer is fixed on the winding drum 1. At the same time, a controller is also commonly electrically connected between the test head 17 and the buzzer. When the test head 17 comes into contact with the water surface and is short-circuited, the controller receives the signal and starts the buzzer;

[0024] A self-locking mechanism is fixed on the fixing frame 2. The self-locking mechanism includes a plurality of fixing rods 5. The plurality of fixing rods 5 are all fixed on the fixing frame 2. A square tube 4 is commonly fixed on the plurality of fixing rods 5. The flexible ruler 3 passes through the square tube 4. First pressing plates 10 are symmetrically provided on both sides of the flexible ruler 3. An electric telescopic rod 8 is fixed on each first pressing plate 10. Two holes 9 are provided through the square tube 4. Each electric telescopic rod 8 passes through the hole 9 and is fixed with a reinforcement plate 7. The reinforcement plate 7 is fixed on two of the fixing rods 5. The two electric telescopic rods 8 are connected in series and electrically connected to the controller. When the controller controls the buzzer to start, it also starts the two electric telescopic rods 8 to move the two first pressing plates 10 relatively, so that the two first pressing plates 10 clamp the flexible ruler 3, thereby locking the height of the test head 17 and achieving the purpose of self-locking the test head 17, facilitating the staff to free their hands for operations such as recording data, reducing the number of staff invested, and reducing labor costs.

[0025] Two guide rollers 6 are symmetrically fixed on the square tube 4. The two guide rollers 6 are arranged on both sides of the flexible ruler 3. When the flexible ruler 3 is wound or unwound, any one of the two guide rollers 6 guides the flexible ruler 3 so that the flexible ruler 3 does not rub against the square tube 4, thereby protecting the flexible ruler 3 and extending the service life of the flexible ruler 3.

[0026] During use, after the test head 17 contacts the water surface and is short-circuited, when the controller receives the signal, it activates the buzzer and also activates the two electric telescopic rods 8 at the same time. The two electric telescopic rods 8 respectively penetrate through the two holes 9 to drive the two first pressing plates 10 to approach each other until the flexible ruler 3 is clamped, so as to fix the height of the test head 17. At the same time, the flexible ruler 3 can be automatically locked and will not be affected by human factors.

[0027] Embodiment 2: In Embodiment 1, although the two first pressing plates 10 can clamp the flexible ruler 3 to lock the height of the test head 17, the test head 17 can still swing freely during transportation, which is not conducive to the safety of the test head 17. Refer to Figure 2 、 3 、4, 6 and 8. As another preferred embodiment of the present invention, different from Embodiment 1, a storage mechanism is fixed on the square tube 4. The storage mechanism includes a fixing plate 11. The fixing plate 11 is fixed on the square tube 4. A groove 16 is provided on the fixing plate 11. The test head 17 is inserted upside down into the groove 16, and the position of the test head 17 is limited by the friction force between the groove 16 and the test head 17.

[0028] After the position of the test head 17 is limited, but the winding drum 1 will still rotate, and the flexible ruler 3 wound on the winding drum 1 will become loose. An anti-rotation mechanism is jointly fixed on the fixing plate 11 and the winding drum 1. The anti-rotation mechanism includes two connecting ropes 12. One end of the two connecting ropes 12 is fixed on the fixing plate 11, and the other end is fixed with a second pressing plate 13. The two connecting ropes 12 prevent the second pressing plate 13 from being lost. Two threaded rods 15 penetrate through and are rotatably provided on the second pressing plate 13. A protective pad is fixed on the second pressing plate 13 between the two threaded rods 15. The protective pad protects the test head 17 when the second pressing plate 13 presses on the test head 17. Two cylindrical tubes 14 are threadedly sleeved on the two threaded rods 15, and the two cylindrical tubes 14 are both fixed on the winding drum 1.

[0029] During use, after the test head 17 is inserted upside down into the groove 16, turn the two threaded rods 15 so that the two threaded rods 15 are respectively inserted into the two cylindrical tubes 14. Since the two threaded rods 15 are rotatably arranged on the second pressing plate 13, at this time, the second pressing plate 13 approaches the test head 17 until the second pressing plate 13 presses on the test head 17 with the protective pad. This not only performs a secondary position limitation on the test head 17, but also limits the winding drum 1 at the same time, so that the winding drum 1 will not rotate, and thus the flexible ruler 3 on the winding drum 1 will not become loose.

[0030] The above are only the preferred specific embodiments of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution and the inventive concept of the present utility model, makes equivalent substitutions or changes, and all should be covered within the protection scope of the present utility model.

Claims

1. A construction engineering inspection ruler with a self-locking structure, comprising a winding drum (1), a fixing frame (2) and a flexible ruler (3) are arranged on the winding drum (1), a test head (17) is arranged on the flexible ruler (3), a buzzer is electrically arranged on the test head (17), and the buzzer is fixed on the winding drum (1), characterized in that: A self-locking mechanism is fixed on the fixing frame (2), and the self-locking mechanism comprises a plurality of fixing rods (5), the plurality of fixing rods (5) are all fixed on the fixing frame (2), a square tube (4) is commonly fixed on the plurality of fixing rods (5), the flexible ruler (3) is arranged through the square tube (4), first extrusion plates (10) are symmetrically arranged on both sides of the flexible ruler (3), an electric telescopic rod (8) is fixed on each of the first extrusion plates (10), two holes (9) are penetrated on the square tube (4), each of the electric telescopic rods (8) penetrates the holes (9) and is fixed with a reinforcement plate (7), and the reinforcement plate (7) is fixed on two of the fixing rods (5).

2. The construction engineering inspection ruler with a self-locking structure according to claim 1 is characterized in that: Two guide rollers (6) are symmetrically fixed on the square tube (4), and the two guide rollers (6) are arranged on both sides of the soft ruler (3).

3. The construction engineering inspection ruler with a self-locking structure according to claim 1 is characterized in that: A storage mechanism is fixed on the square tube (4).

4. The construction engineering inspection ruler with a self-locking structure according to claim 3 is characterized in that: The storage mechanism comprises a fixing plate (11), the fixing plate (11) is fixed on the square tube (4), and a groove (16) is provided on the fixing plate (11).

5. The construction engineering inspection ruler with a self-locking structure according to claim 4 is characterized in that: An anti-rotation mechanism is fixed on the fixing plate (11) and the winding drum (1).

6. The construction engineering inspection ruler with a self-locking structure according to claim 5, characterized in that: The anti-rotation mechanism comprises two connecting ropes (12), one end of the two connecting ropes (12) is fixed to the fixing plate (11), and the other end is fixed to a second extrusion plate (13), two threaded rods (15) are passed through and rotatably provided on the second extrusion plate (13), the two threaded rods (15) are both threadedly mounted with cylinders (14), and the two cylinders (14) are both fixed to the winding drum (1).

7. The construction engineering inspection ruler with a self-locking structure according to claim 6, characterized in that: A protective pad is fixed on the second extrusion plate (13) between the two threaded rods (15).

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