Concrete floor deformation detection device

Abstract

The utility model discloses a concrete floor deformation detection device which comprises a base, a lifting rod and a top rod, a fixed shaft is arranged at the bottom of the base, an insertion hole is formed in the top of the base and extends downwards into the fixed shaft, a threaded hole is formed in the bottom of the fixed shaft, and a first screw rod is inserted into the threaded hole in a matched mode. At least three supports are hinged to the periphery of the top of the base, a lower observation cylinder is transversely arranged on the side wall of the lifting rod, the top of the lifting rod is communicated with the lower observation cylinder through a lower light path, a lower mirror body is arranged at the corner of the lower light path, and the lower end of the lifting rod is slidably inserted into an insertion hole. The bottom of the ejector rod is communicated with the upper observation cylinder through an upper light path, an upper mirror body is arranged at the corner of the upper light path, the upper mirror body is parallel to a lower mirror body, the upper mirror body and the lower mirror body form 45 degrees with the horizontal plane, the lower end of the ejector rod is slidably sleeved at the upper end of the lifting rod, a U-shaped plate is arranged on the side wall of the ejector rod, a dial indicator is arranged at the top of the U-shaped plate, and the dial indicator is aligned with the upper observation cylinder.

Description

Technical Field

[0001] The utility model belongs to the technical field of engineering quality detection, and specifically relates to a concrete floor deformation detection device. Background Art

[0002] The functions of each building are different, and the loads that the floor slabs have to bear are also different. In order to verify whether the bearing capacity of the floor slabs meets the requirements of the functional use, static load tests are required to check whether the deformation of the floor slabs exceeds the specified range.

[0003] During the experiment, it is necessary to set up a bracket on the lower floor to fix the dial indicator so that the dial indicator contacts the bottom of the experimental floor slab. Then, a static load is applied to the surface of the experimental floor slab. By reading the change in the dial indicator value, the deformation of the floor slab can be obtained.

[0004] However, this experimental method requires workers to set up a scaffolding next to the dial indicator and climb up the scaffolding to read the dial indicator reading before and after applying the static load to the floor of the experimental layer. This method of testing has a relatively complicated process. At the same time, because workers need to climb high, there are safety hazards. Utility Model Content

[0005] The utility model aims to provide a concrete floor deformation detection device to solve the problems of complicated detection procedures and potential safety hazards in the prior art.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] The top of the top rod is provided with a U-shaped plate, and a dial indicator is provided on the top of the U-shaped plate, and the dial indicator is aligned with the top of the first screw threading rod and the bottom of the top rod is provided with a U-shaped plate.

[0008] The principle and effect of this technical solution:

[0009] Unfold the bracket, support the base on the surface of the lower floor, slide the lifting rod into the socket, then slide the top rod onto the top of the lifting rod, then insert the first screw into the bottom of the fixed shaft, rotate the first screw to move upward, and push the lifting rod and the top rod to move upward. When the top of the dial indicator touches the bottom of the experimental floor and a reading appears, the staff reads the dial indicator reading for the first time through the lower observation tube, then applies a static load to the surface of the experimental floor, and reads the dial indicator reading for the second time from the lower observation tube. Subtract the second reading from the first reading to get the deformation variable of the floor.

[0010] Through the above settings, the staff does not need to set up scaffolding next to the dial indicator, which simplifies the experimental steps and improves work efficiency. At the same time, the staff does not need to climb onto the scaffolding to read the dial indicator data, eliminating safety hazards.

[0011] In the utility model, a first convex strip is vertically arranged on the inner wall of the insertion hole, a sliding groove is vertically arranged on the lower end of the lifting rod, the first convex strip is slidably embedded in the sliding groove, a notch is vertically arranged on the top of the lifting rod, and a second convex strip is vertically arranged on the inner wall of the push rod, the second convex strip is slidably embedded in the notch. When the first convex strip is slidably embedded in the sliding groove and the second convex strip is slidably embedded in the notch, the upper mirror body and the lower mirror body are parallel. Through the above arrangement, the lifting rod and the push rod can be restricted from rotating during the lifting process to ensure that the upper mirror body and the lower mirror body are parallel to each other.

[0012] In the utility model, a lower mounting plate is provided at the bottom of the notch, an upper mounting plate is provided at the bottom of the push rod, a compression spring is sleeved on the outer periphery of the lifting rod, the compression spring is located between the upper mounting plate and the lower mounting plate, a plurality of second screws are passed through the upper mounting plate and the lower mounting plate, upper nuts are sleeved on the second screws between the upper mounting plate and the lower mounting plate, and lower nuts are sleeved on the second screws below the lower mounting plate.

[0013] The principle and effect of this technical solution:

[0014] First, a compression spring is installed on the lifting rod above the lower mounting plate, and then the push rod is slidably installed on the top of the lifting rod, so that multiple second screws are inserted into the upper mounting plate and the lower mounting plate, and the upper nut is rotated to a position away from the lower mounting plate, and then the first screw is rotated to push the lifting rod and the push rod to move upward. When a reading appears on the dial indicator, stop rotating the first screw and rotate the upper nut to move the upper nut downward and press the lower mounting plate.

[0015] Through the above arrangement, it is possible to avoid the situation where the dial indicator is squeezed and damaged due to excessive rotation of the first screw, thereby extending the service life of the utility model.

[0016] In the utility model, the bracket includes a telescopic rod and a sleeve rod, the sleeve rod is slidably sleeved on the telescopic rod, a locking bolt is inserted into the side wall of the sleeve rod, the locking bolt is threadedly connected to the sleeve rod, and the locking bolt is inserted into one end of the sleeve rod and abuts against the side wall of the telescopic rod.

[0017] The principle and effect of this technical solution:

[0018] When in use, loosen the locking bolt to separate the locking bolt from the side wall of the telescopic rod, slide out the telescopic rod, tighten the locking bolt, and unfold the bracket. After the inspection is completed, tighten the bracket, loosen the locking bolt to separate the locking bolt from the side wall of the telescopic rod, and slide the telescopic rod inward. Through the above arrangement, the volume of the utility model when idle can be reduced, saving space.

[0019] In the utility model, a flange is provided at the bottom of the fixed shaft, a sleeve is provided on the upper part of the flange along the outer circumference of the fixed shaft, a connecting rod is hingedly provided on the side of the sleeve rod close to the fixed shaft, and the connecting rod is hingedly connected to the sleeve at one end close to the sleeve. Through the above arrangement, the overall structural stability of the utility model can be enhanced.

[0020] In the utility model, the bottom of the telescopic rod is provided with a threaded knob, and the top of the base is provided with a leveler. Through the above arrangement, the base can be kept horizontal, thereby ensuring that the lifting rod, the top rod and the dial indicator are all in a vertical state, thereby improving the accuracy of the experiment. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is the axonometric drawing of the overall structure of the utility model;

[0022] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0023] Figure 3 This is a front sectional view of the utility model;

[0024] Figure 4 for Figure 3 Enlarged view of point B in the middle. DETAILED DESCRIPTION

[0025] The present invention is further described in detail below in conjunction with the accompanying drawings and implementation examples:

[0026] The figure marks in the drawings of the specification include: 10, base; 11, fixed axis; 111, flange; 112, threaded hole; 12, sleeve; 121, connecting rod; 13, bracket; 131, telescopic rod; 132, sleeve rod; 133, locking bolt; 134, knob; 14, first screw rod; 15, socket; 151, first convex strip; 16, leveler; 20, lifting rod; 21, lower observation tube; 211, lower optical path; 212, lower mirror body; 22, slide groove; 23, notch; 24, lower mounting plate; 25, compression spring; 26, second screw rod; 261, upper nut; 262, lower nut; 30, push rod; 31, upper observation tube; 311, upper optical path; 312, upper mirror body; 32, second convex strip; 33, upper mounting plate; 34, U-shaped plate; 35, dial indicator.

[0027] As attached Figure 1-4 As shown, the utility model discloses a concrete floor deformation detection device, including a base 10, a lifting rod 20 and a top rod 30, the bottom of the base 10 is provided with a fixed shaft 11, the top of the base 10 is provided with a socket 15, and the socket 15 extends downward into the fixed shaft 11, the bottom of the fixed shaft 11 is provided with a threaded hole 112, and a first screw 14 is inserted in the threaded hole 112, at least three brackets 13 are hingedly provided on the outer periphery of the top of the base 10, a lower observation tube 21 is transversely provided on the side wall of the lifting rod 20, the top of the lifting rod 20 is connected with the lower observation tube 21 through a lower optical path 211, and a lower mirror is provided at the corner of the lower optical path 211 The lower end of the lifting rod 20 is slidably inserted into the socket 15, and the bottom of the lifting rod 20 is in contact with the top of the first screw 14. An upper observation tube 31 is laterally arranged on the top of the push rod 30. The bottom of the push rod 30 is connected with the upper observation tube 31 through an upper optical path 311. An upper mirror body 312 is arranged at the corner of the upper optical path 311. The upper mirror body 312 is parallel to the lower mirror body 212, and the upper mirror body 312 and the lower mirror body 212 are both 45 degrees to the horizontal plane. The lower end of the push rod 30 is slidably sleeved on the upper end of the lifting rod 20. A U-shaped plate 34 is arranged on the side wall of the push rod 30. A dial indicator 35 is arranged on the top of the U-shaped plate 34. The dial indicator 35 is aligned with the upper observation tube 31.

[0028] In this embodiment, a first ridge 151 is vertically provided on the inner wall of the insertion hole 15, a slide groove 22 is vertically provided on the lower end of the lifting rod 20, the first ridge 151 slides into the slide groove 22, a notch 23 is vertically provided on the top of the lifting rod 20, and a second ridge 32 is vertically provided on the inner wall of the top rod 30, and the second ridge 32 slides into the notch 23.

[0029] In this embodiment, a lower mounting plate 24 is provided at the bottom of the notch 23, an upper mounting plate 33 is provided at the bottom of the push rod 30, a compression spring 25 is sleeved on the outer periphery of the lifting rod 20, and the compression spring 25 is located between the upper mounting plate 33 and the lower mounting plate 24. A plurality of second screws 26 are passed through the upper mounting plate 33 and the lower mounting plate 24, and an upper nut 261 is sleeved on the second screws 26 between the upper mounting plate 33 and the lower mounting plate 24, and a lower nut 262 is sleeved on the second screws 26 below the lower mounting plate 24.

[0030] In this embodiment, the bracket 13 includes a telescopic rod 131 and a sleeve rod 132. The sleeve rod 132 is slidably sleeved on the telescopic rod 131. A locking bolt 133 is inserted into the side wall of the sleeve rod 132. The locking bolt 133 is threadedly connected to the sleeve rod 132. The locking bolt 133 is inserted into one end of the sleeve rod 132 and abuts against the side wall of the telescopic rod 131.

[0031] In this embodiment, a flange 111 is provided at the bottom of the fixed shaft 11, and a sleeve 12 is provided on the upper part of the flange 111 along the outer periphery of the fixed shaft 11. A connecting rod 121 is hingedly provided on one side of the sleeve rod 132 close to the fixed shaft 11, and the connecting rod 121 is hinged to the sleeve 12 at one end close to the sleeve 12.

[0032] In this embodiment, a knob 134 is threadedly provided at the bottom of the telescopic rod 131 , and a leveler 16 is provided at the top of the base 10 .

[0033] The specific implementation process is as follows:

[0034] Unfold the bracket 13, support the base 10 on the surface of the lower floor, slide the lifting rod 20 into the socket 15, and then slide the top rod 30 on the top of the lifting rod 20, then insert the first screw 14 into the bottom of the fixed shaft 11, rotate the first screw 14 to make the first screw 14 move upward, and push the lifting rod 20 and the top rod 30 to move upward. When the top of the dial indicator 35 contacts the bottom of the floor of the experimental floor and a reading appears, the staff reads the reading of the dial indicator 35 for the first time through the lower observation tube 21, then applies a static load on the surface of the floor of the experimental floor, and reads the reading of the dial indicator 35 for the second time from the lower observation tube 21. Subtract the second reading from the first reading to get the deformation variable of the floor.

[0035] First, a compression spring 25 is sleeved on the lifting rod 20 above the lower mounting plate 24, and then the push rod 30 is slidably sleeved on the top of the lifting rod 20, so that multiple second screws 26 are inserted into the upper mounting plate 33 and the lower mounting plate 24, and the upper nut 261 is rotated and moved to a position away from the lower mounting plate 24, and then the first screw 14 is rotated to push the lifting rod 20 and the push rod 30 to move upward. When a reading appears on the dial indicator 35, stop rotating the first screw 14 and rotate the upper nut 261 to move the upper nut 261 downward and press the lower mounting plate 24.

[0036] When in use, loosen the locking bolt 133 to disengage the locking bolt 133 from the side wall of the telescopic rod 131, slide out the telescopic rod 131, tighten the locking bolt 133, and unfold the bracket 13. After completing the inspection, tighten the bracket 13, loosen the locking bolt 133, disengage the locking bolt 133 from the side wall of the telescopic rod 131, and slide inward into the telescopic rod 131.

[0037] The above is only an embodiment of the utility model, and the common knowledge such as the known specific technical scheme or characteristics in the scheme is not described in detail here. It should be pointed out that for those skilled in the art, several deformations and improvements can be made without departing from the technical scheme of the utility model, which should also be regarded as the protection scope of the utility model, and these will not affect the effect of the implementation of the utility model and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A concrete floor deformation detection device, characterized in that: include: A base, wherein a fixed shaft is provided at the bottom of the base, a plug hole is provided at the top of the base, and the plug hole extends downward into the fixed shaft, a threaded hole is provided at the bottom of the fixed shaft, a first screw is inserted in the threaded hole, and at least three brackets are hingedly provided on the periphery of the top of the base; A lifting rod, wherein a lower observation tube is transversely arranged on the side wall of the lifting rod, the top of the lifting rod is connected with the lower observation tube through a lower optical path, a lower mirror body is arranged at the corner of the lower optical path, the lower end of the lifting rod is slidably inserted into the insertion hole, and the bottom of the lifting rod is in contact with the top of the first screw rod; A push rod, wherein an upper observation tube is laterally arranged on the top of the push rod, the bottom of the push rod is connected with the upper observation tube through an upper optical path, an upper mirror body is arranged at the corner of the upper optical path, the upper mirror body is parallel to the lower mirror body, and both the upper mirror body and the lower mirror body are 45 degrees to the horizontal plane, the lower end of the push rod is slidably sleeved on the upper end of the lifting rod, a U-shaped plate is arranged on the side wall of the push rod, a dial indicator is arranged on the top of the U-shaped plate, and the dial indicator is aligned with the upper observation tube.

2. The concrete floor deformation detection device according to claim 1, characterized in that: A first convex strip is vertically arranged on the inner wall of the insertion hole, a sliding groove is vertically arranged on the lower end of the lifting rod, the first convex strip is slidably embedded in the sliding groove, a notch is vertically arranged on the top of the lifting rod, and a second convex strip is vertically arranged on the inner wall of the top rod, and the second convex strip is slidably embedded in the notch.

3. The concrete floor deformation detection device according to claim 2, characterized in that: A lower mounting plate is provided at the bottom of the notch, an upper mounting plate is provided at the bottom of the push rod, a compression spring is sleeved on the outer periphery of the lifting rod, the compression spring is located between the upper mounting plate and the lower mounting plate, a plurality of second screw rods are passed through the upper mounting plate and the lower mounting plate, upper nuts are sleeved on the second screw rods between the upper mounting plate and the lower mounting plate, and lower nuts are sleeved on the second screw rods under the lower mounting plate.

4. The concrete floor deformation detection device according to claim 1, characterized in that: The bracket comprises a telescopic rod and a sleeve rod, the sleeve rod is slidably sleeved on the telescopic rod, a locking bolt is inserted into the side wall of the sleeve rod, the locking bolt is threadedly connected to the sleeve rod, and the locking bolt is inserted into one end of the sleeve rod and abuts against the side wall of the telescopic rod.

5. The concrete floor deformation detection device according to claim 4, characterized in that: The bottom of the fixed shaft is provided with a flange, the upper part of the flange is provided with a shaft sleeve along the outer periphery of the fixed shaft, and the sleeve rod is hingedly provided with a connecting rod on one side close to the fixed shaft, and the connecting rod is hingedly connected to the shaft sleeve at one end close to the shaft sleeve.

6. The concrete floor deformation detection device according to claim 5, characterized in that: The bottom of the connecting rod is threaded with a knob, and the top of the base is provided with a leveler.

Images