Floor slab thickness nondestructive testing instrument

Abstract

The utility model provides a floor slab thickness nondestructive testing instrument, relates to the technical field of floor slab detection, and aims to solve the problems that operators on the upper side and the lower side of a floor slab are difficult to quickly determine the approximate position of a probe of an opposite side through vision or a conventional means due to the obstruction of the floor slab and often need to consume a lot of time to repeatedly try and adjust; the device comprises an outer beam frame and an inner adjusting block, wherein the outer beam frame and the inner adjusting block are arranged on the outer beam frame; outer binding frames are fixedly connected to the outer wall of the spacing fixing block at equal intervals; driving frames are fixedly connected to the outer wall of the inner adjusting block at equal intervals; and the top of the driving frame is fixedly connected with a knocking block. The telescopic cylinder drives the inner adjusting block to slide in the adjusting groove, the inner adjusting block is connected with the knocking block through the driving frame, and therefore the sliding knocking function of the knocking block on the outer beam frame is achieved, an operator can position the emitter according to the mode of knocking a sound source in a floor, the approximate position of the emitter is accurate, and the measuring position can be found conveniently and rapidly.

Description

Technical Field

[0001] This utility model belongs to the field of floor slab testing technology, and more specifically, it relates to a non-destructive testing instrument for floor slab thickness. Background Technology

[0002] In the field of building engineering, floor slab thickness is one of the key indicators for measuring the quality and safety performance of buildings. Its accurate detection is crucial for ensuring the stability of building structures, meeting design specifications, and ensuring the safety of residents. Currently, floor slab thickness detection methods are mainly divided into two categories: destructive testing and non-destructive testing. Non-destructive testing methods are more advanced than destructive testing. Floor slab thickness gauges based on electromagnetic wave principles and modern electronic technology are widely used in testing. These instruments place transmitting and receiving probes on the upper and lower surfaces of the floor slab, respectively. The transmitting probe emits an alternating electromagnetic field, and the receiving probe analyzes and calculates the floor slab thickness based on the intensity of the received electromagnetic field signal. However, a non-destructive testing instrument is needed to facilitate the detection of floor slab thickness.

[0003] Based on existing technology, current floor slab thickness testing instruments require the placement of transmitting and receiving probes on the upper and lower surfaces of the floor slab, respectively. After placement, precise positioning between the two sets of probes is necessary. However, due to the obstruction of the floor slab, operators located on both sides of the floor slab cannot quickly determine the approximate position of the other probe through visual or conventional means. This makes the positioning process extremely cumbersome, often requiring a lot of time for repeated attempts and adjustments, resulting in low overall testing efficiency. This greatly limits the convenience and practicality of such instruments in actual engineering projects and makes it difficult to meet the needs of high-efficiency testing. Utility Model Content

[0004] To address the aforementioned technical problems, this utility model relates to a non-destructive testing instrument for floor slab thickness. This instrument solves the problem that, due to the obstruction of the floor slab, operators located on the upper and lower sides of the floor slab find it difficult to quickly determine the approximate position of the other party's probe through visual or conventional means. This makes the positioning process extremely cumbersome, often requiring a lot of time for repeated attempts and adjustments, resulting in low overall testing efficiency and making it difficult to meet the needs of high-efficiency testing.

[0005] This utility model provides a non-destructive testing instrument for floor slab thickness, achieved through the following specific technical means:

[0006] A non-destructive testing instrument for floor slab thickness includes: a support frame, a mating screw, and an inner groove; an adjusting block is rotatably connected to the top of the support frame; a threaded through hole is provided in the middle of the adjusting block, and rotating handles are fixedly connected at equal intervals on the outer wall of the adjusting block; a mating plug is fixedly connected to the top of the mating screw; a connecting lock block is slidably connected inside the inner groove; a cylindrical insert is provided on the connecting lock block, and a return spring is provided on the connecting lock block; two sets of connecting lock blocks are provided; a spacer block is provided above the mating plug; a mating groove is opened at the bottom of the spacer block, and a mating plug is inserted into the mating groove; a circular through hole that mates with the cylindrical insert of the connecting lock block is connected to the mating groove; an adjusting groove is opened inside the spacer block; and rotating handles are fixedly connected at equal intervals on the outer wall of the spacer block. The system includes an outer frame; the outer frame is a square plate structure with a cylindrical rod at its top, and a cylindrical block for contacting the bottom of the floor slab is fixedly connected to the top of the cylindrical rod; an inner adjusting block is slidably connected inside the adjusting groove, and the inner adjusting block is connected to a telescopic cylinder; a driving frame is equidistantly fixed to the outer wall of the inner adjusting block, and the driving frame is slidably connected in a constraint hole; the driving frame is a cuboid structure, with a cylindrical rod fixedly connected to the top of the driving frame, and a cuboid structure fixedly connected to the top of the cylindrical rod of the driving frame; a striking block is fixedly connected to the top of the driving frame, and the striking block is slidably connected to the outer frame; a circular through hole that mates with the outer frame is provided at the center of the striking block; a protective block is fixedly connected to the top of the interlocking block; and a threaded groove for connection is provided on the top of the protective block.

[0007] Preferably, the bottom of the support frame is provided with a foot plate; the inside of the support frame is provided with an internal groove, and the inner wall of the internal groove is connected with an annular groove for cooperating with the adjustment block.

[0008] Preferably, the adjusting block is threadedly connected to a mating screw; the mating screw is configured as a threaded rod structure; the mating block has an internal recessed groove; the internal recessed groove is configured as a rectangular groove, and the internal recessed groove is connected to a circular through hole.

[0009] Preferably, the adjusting groove is connected to a rectangular constraint through hole; a telescopic cylinder is fixedly connected inside the adjusting groove.

[0010] Preferably, the outer frame has constraint holes.

[0011] Preferably, the inner adjusting block is configured as a cylindrical structure, with a buffer spring at the bottom and a rectangular protrusion on the outer wall of the inner adjusting block for engaging with the constraint through hole on the adjusting groove. The inner adjusting block is connected to a ring-shaped structure through the rectangular protrusion.

[0012] Preferably, a transmitter is threadedly connected to the top of the protective block; a threaded rod for cooperating with the protective block is fixedly connected to the bottom of the transmitter; and a receiver is provided above the transmitter.

[0013] The non-destructive testing instrument for floor slab thickness proposed in this utility model has the following beneficial effects:

[0014] 1. In this device, the telescopic cylinder drives the inner adjusting block to slide in the adjusting groove. The inner adjusting block is connected to the striking block through the drive frame, thereby realizing the function of the striking block sliding and striking on the outer frame. The operator can locate the transmitter according to the sound source in the floor slab, thereby accurately determining the approximate position of the transmitter and enabling the transmitter and receiver to be initially positioned. Then, the positioning components of both are used for secondary fine positioning, which facilitates quick location of the measurement position.

[0015] 2. In this device, the rotating handles fixed at equal intervals on the outer wall of the adjusting block facilitate manual rotation of the adjusting block by the operator, thereby causing the mating screw to move up and down under the action of the thread. Compared with traditional complex mechanical adjusting devices, this manual adjustment method is simpler and more direct to operate, and can quickly adjust the overall height of the instrument according to actual testing needs, adapting to testing scenarios with different floor heights. Moreover, the threaded connection adjustment method has high precision, enabling precise adjustment of minute heights, ensuring that the instrument is in the optimal testing position, improving the accuracy of testing results. By using a support method instead of the traditional lifting and fixing method, stability is maintained while saving the pressure on the testing personnel. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the three-dimensional assembly structure of this utility model.

[0017] Figure 2 This is a schematic diagram of the three-dimensional assembly structure of this utility model from a bottom view.

[0018] Figure 3 This is a partial cross-sectional structural diagram of the present invention.

[0019] Figure 4 This utility model is composed of Figure 3 A schematic diagram of the enlarged structure of part A.

[0020] Figure 5 This is an exploded structural diagram of the present invention.

[0021] Figure 6 This is an exploded bottom view structural diagram of this utility model.

[0022] In the diagram, the correspondence between component names and drawing numbers is as follows:

[0023] 1. Support frame; 101. Internal slot; 102. Adjusting block;

[0024] 2. Matching screw; 201. Connecting insert; 202. Inner recess; 203. Connecting lock block;

[0025] 3. Interlocking block; 301. Mating groove; 302. Adjusting groove; 303. Telescopic cylinder; 304. External frame; 305. Constraint hole;

[0026] 4. Internal adjustment block; 401. Drive frame; 402. Striking block;

[0027] 5. Protection block; 501. Transmitter; 502. Receiver. Detailed Implementation

[0028] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples.

[0029] Example 1: As shown in the attached document Figure 1 To be continued Figure 6As shown: This utility model provides a non-destructive testing instrument for floor slab thickness, including: a support frame 1, a mating screw 2, and an inner groove 202; an adjusting block 102 is rotatably connected to the top of the support frame 1; a threaded through hole is provided in the middle position of the adjusting block 102, and rotating handles are fixedly connected at equal intervals on the outer wall of the adjusting block 102; the adjusting block 102 is used to control the extension and retraction of the mating screw 2 through the thread during rotation to assist in adjustment; a mating plug 201 is fixedly connected to the top of the mating screw 2; the mating plug 201 is used to connect the mating screw 2 and the interlocking block 3 with the interlocking block 3; a connecting locking block 203 is slidably connected inside the inner groove 202; a cylindrical insert is provided on the connecting locking block 203. A return spring is provided on the upper part, and two sets of connecting locking blocks 203 are provided. The connecting locking blocks 203 are used to maintain the connection between the interlocking block 3 and the docking plug 201 under the action of the return spring. An interlocking block 3 is provided above the docking plug 201. The interlocking block 3 is used to assist in the installation of other structures of the device. A mating groove 301 is opened at the bottom of the interlocking block 3, and the docking plug 201 is inserted into the mating groove 301. The mating groove 301 is connected to a circular through hole that mates with the cylindrical plug of the connecting locking block 203. The mating groove 301 is used to assist the interlocking block 3 and the docking plug 201 in docking, so as to facilitate the stability of the connection between the two. An adjustment groove 302 is opened inside the interlocking block 3. An outer bracket is fixed at equal intervals on the outer wall of the interlocking block 3. 304; The outer frame 304 is a square plate structure, with a cylindrical rod at the top. A cylindrical block for contacting the bottom of the floor slab is fixed to the top of the cylindrical rod. The outer frame 304 assists in contacting the floor slab bottom plate to coordinate with the drive frame 401 for positioning the device. An inner adjusting block 4 is slidably connected inside the adjusting groove 302, and the inner adjusting block 4 is connected to the telescopic cylinder 303. The drive frame 401 is equidistantly fixed to the outer wall of the inner adjusting block 4, and the drive frame 401 is slidably connected in the constraint hole 305. The drive frame 401 is a cuboid structure, with a cylindrical rod fixed to the top of the drive frame 401, and a cuboid structure fixed to the top of the cylindrical rod. The drive frame 401 is used to drive the inner adjusting block. 4. Adjust the height to drive the striking block 402 to strike the outer frame 304, thereby assisting in positioning the transmitter 501. The striking block 402 is fixedly connected to the top of the frame 401 and is slidably connected to the outer frame 304. The striking block 402 has a circular through hole at its center that mates with the outer frame 304. The striking block 402 is used to strike the outer frame 304 to position the transmitter 501 through the resulting striking sound, facilitating its use. The top of the interlocking block 3 is fixedly connected to a protective block 5. The top of the protective block 5 has a threaded groove for connection. The protective block 5 is used to assist in the installation of the transmitter 501 and to protect the telescopic cylinder 303.

[0030] Example 2: Based on Example 1, as shown in the appendix Figure 1 To be continued Figure 6 As shown, the bottom of the support frame 1 is equipped with a foot plate; the support frame 1 is used to assist in supporting the device, replacing manual lifting with upper and lower support, thereby maintaining the stability of the transmitter 501; the support frame 1 has an internal groove 101, and the inner wall of the internal groove 101 is connected to an annular groove for cooperating with the adjusting block 102; the internal groove 101 is used to assist the extension and retraction of the mating screw 2 to assist in its adjustment; the adjusting block 102 is threadedly connected to the mating screw 2; the mating screw 2 is set as a threaded rod structure; the mating screw... Rod 2 is used to adjust the overall height of the device in conjunction with adjusting block 102 to assist in fixing the device; the inner recess 202 is provided inside the mating block 201; the inner recess 202 is a rectangular groove and is connected to a circular through hole; the inner recess 202 is used to assist in the installation of the connecting locking block 203, facilitating its telescopic adjustment; the adjusting groove 302 is connected to a rectangular constraint through hole; the adjusting groove 302 is used to assist in the installation of the drive frame 401 and the inner adjusting block 4, facilitating their adjustment; the interior of the adjusting groove 302... A telescopic cylinder 303 is fixedly connected; the telescopic cylinder 303 is used to cooperate with the drive frame 401 and the inner adjusting block 4 to drive the striking block 402 to telescopically extend and retract, so as to send a position signal by striking the outer frame 304; the outer frame 304 is provided with a constraint hole 305; the constraint hole 305 is used to constrain the drive frame 401 to facilitate its adjustment; the inner adjusting block 4 is set as a cylindrical structure, the bottom of the inner adjusting block 4 is provided with a buffer spring, and the outer wall of the inner adjusting block 4 is provided with a rectangular protrusion for cooperating with the constraint through hole on the adjusting groove 302. The inner adjustment block 4 is connected to a ring-shaped structure via a rectangular protrusion; the inner adjustment block 4 is used to extend and retract under the drive of the telescopic cylinder 303, so as to cooperate with the drive frame 401 for lifting and lowering adjustment; the top of the protective block 5 is threadedly connected to the transmitter 501; the bottom of the transmitter 501 is fixedly connected to a threaded rod for cooperating with the protective block 5; the transmitter 501 is used to cooperate with the receiver 502 to detect the thickness of the floor slab; the receiver 502 is provided above the transmitter 501; the receiver 502 is used to cooperate with the transmitter 501 to detect the thickness of the floor slab.

[0031] The specific usage and function of this embodiment are as follows:

[0032] In this invention, the support frame 1 is placed in a suitable testing position. The operator holds the handle on the outer wall of the adjusting block 102 and rotates the adjusting block 102. Since the threaded through hole in the middle of the adjusting block 102 is threadedly connected to the mating screw 2, the mating screw 2 will extend and retract under the action of the thread when the adjusting block 102 rotates. The mating screw 2 extends and retracts in the built-in groove 101 inside the support frame 1. The annular groove on the inner wall of the built-in groove 101 cooperates with the adjusting block 102 to ensure smooth adjustment. The device is supported in the floor by adjustment. The telescopic cylinder 303 is activated and starts working, pushing the inner adjusting block 4 to slide in the adjusting groove 302. The buffer spring at the bottom of the inner adjusting block 4 can play a buffering role to reduce the impact during movement. The rectangular protrusion on the outer wall of the inner adjusting block 4 cooperates with the rectangular constraint through hole on the adjusting groove 302 to ensure that the inner adjusting block 4 can only slide in a specific direction. When the inner adjusting block 4 slides, it will drive the belt that is fixed at a distance from its outer wall. The moving frame 401 moves together with the moving frame 401, which slides within the constraint hole 305. The constraint hole 305 constrains the moving frame 401, making its movement more stable. A striking block 402 is fixed to the top of the moving frame 401. As the moving frame 401 rises and falls, the striking block 402 slides on the outer frame 304 and strikes the outer frame 304. The circular through hole at the center of the striking block 402 cooperates with the outer frame 304 to ensure smooth striking. The striking sound generated by striking the outer frame 304 allows the operator above the floor to roughly determine the position of the transmitter 501, facilitating subsequent testing operations. After the transmitter 501 is positioned, the receiver 502 is placed at a suitable position above the floor. The transmitter 501 emits a detection signal, which passes through the floor and is received by the receiver 502. By analyzing and processing the emitted and received signals, the thickness of the floor can be calculated, completing the non-destructive testing of the floor thickness.

[0033] The following points should be noted in this article:

[0034] 1. The accompanying drawings of the embodiments disclosed herein only relate to the structures involved in the embodiments disclosed herein; other structures can be referred to in a general design.

[0035] 2. Where there is no conflict, the embodiments of this disclosure and the features in the embodiments can be combined with each other to obtain new embodiments.

[0036] The above are merely specific embodiments of this disclosure, but the scope of protection of this disclosure is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this disclosure should be included within the scope of protection of this disclosure. Therefore, the scope of protection of this disclosure should be determined by the scope of the claims.

Claims

1. A non-destructive testing instrument for floor slab thickness, comprising: Support frame (1), mating screw (2), and inner groove (202); characterized in that: The top of the support frame (1) is rotatably connected to an adjusting block (102); the adjusting block (102) has a threaded through hole in the middle position, and rotating handles are fixedly connected at equal intervals on the outer wall of the adjusting block (102); The top of the mating screw (2) is fixedly connected to a mating plug (201); The inner groove (202) is slidably connected to a connecting lock block (203); the connecting lock block (203) is provided with a cylindrical insert rod and a return spring; there are two sets of connecting lock blocks (203). A retaining block (3) is provided above the docking plug (201); The bottom of the interlocking block (3) is provided with a mating groove (301), and a mating plug (201) is inserted in the mating groove (301); the mating groove (301) is connected to a circular through hole that mates with the cylindrical plug of the connecting lock block (203); An adjustment groove (302) is provided inside the interlocking block (3); An outer frame (304) is fixed at equal intervals on the outer wall of the interlocking block (3); the outer frame (304) is configured as a square plate structure, and a cylindrical rod is provided at the top of the outer frame (304), and a cylindrical block for contacting the bottom of the floor slab is fixed at the top of the cylindrical rod. The adjustment groove (302) is internally slidably connected to an inner adjustment block (4), and the inner adjustment block (4) is connected to a telescopic cylinder (303); The inner adjusting block (4) has a drive frame (401) fixed at equal intervals on its outer wall, and the drive frame (401) is slidably connected in the constraint hole (305); the drive frame (401) is configured as a cuboid structure, and a cylindrical rod is fixedly connected to the top of the drive frame (401), and a cuboid structure is fixedly connected to the top of the cylindrical rod of the drive frame (401). The top of the drive frame (401) is fixedly connected to a striking block (402), and the striking block (402) is slidably connected to the outer frame (304); the center of the striking block (402) is provided with a circular through hole that cooperates with the outer frame (304); The top of the interlocking block (3) is fixed with a protective block (5); the top of the protective block (5) is provided with a threaded groove for connection.

2. The non-destructive testing instrument for floor slab thickness according to claim 1, characterized in that: The bottom of the support frame (1) is provided with a foot plate; The support frame (1) has an internal groove (101) inside, and the inner wall of the internal groove (101) is connected to an annular groove for cooperating with the adjusting block (102).

3. The non-destructive testing instrument for floor slab thickness according to claim 1, characterized in that: The adjusting block (102) is threadedly connected to a mating screw (2); the mating screw (2) is configured as a threaded rod structure; The mating plug (201) has an inner groove (202) inside; the inner groove (202) is a rectangular groove and is connected to a circular through hole.

4. The non-destructive testing instrument for floor slab thickness according to claim 1, characterized in that: The adjusting groove (302) is connected to a rectangular constraint through hole; A telescopic cylinder (303) is fixedly connected inside the adjusting groove (302).

5. The non-destructive testing instrument for floor slab thickness according to claim 1, characterized in that: The outer frame (304) has a constraint hole (305).

6. The non-destructive testing instrument for floor slab thickness according to claim 1, characterized in that: The inner adjusting block (4) is configured as a cylindrical structure. A buffer spring is provided at the bottom of the inner adjusting block (4). A rectangular protrusion is provided on the outer wall of the inner adjusting block (4) to cooperate with the constraint through hole on the adjusting groove (302). The inner adjusting block (4) is connected to a ring structure through the rectangular protrusion.

7. The non-destructive testing instrument for floor slab thickness according to claim 1, characterized in that: The top of the protective block (5) is threadedly connected to a transmitter (501); the bottom of the transmitter (501) is fixedly connected to a threaded rod for cooperating with the protective block (5); A receiver (502) is located above the transmitter (501).

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