Steel structure thick fireproof coating needle type thickness gauge with improved structure

Abstract

The utility model discloses a needle type thickness gauge for a thick fireproof coating of a steel structure with an improved structure, and aims to solve the problems of function separation, tedious operation, insufficient precision and lack of a repairing function of existing equipment. The thickness gauge comprises an auxiliary drilling frame, the front surface of the auxiliary drilling frame is welded with a graduated scale, the lower end of the graduated scale is connected with a measuring anvil, a digital display gauge outfit is slidably mounted on the graduated scale, a probe is inserted into the measuring anvil, the upper end of the probe is linked with the digital display gauge outfit, and one side of the auxiliary drilling frame is provided with a handle. The auxiliary drilling frame comprises a sliding groove frame, a sliding frame, an electric motor, a hole plate with a threaded through hole and a drill bit screw and further comprises a material storage barrel, a piston rod and the like. The drilling, measuring and hole repairing functions are integrated, the electric motor is controlled through the digital display meter head to drive the drill bit screw to drill holes, the probe is matched with the digital display meter head to measure the thickness, and the hole can be filled and repaired through the material storage barrel and the piston rod. The thickness gauge is convenient to operate, accurate in measurement, complete in function and capable of improving the detection efficiency and quality and meeting engineering requirements.

Description

Technical Field

[0001] This utility model relates to the field of construction quality testing technology, and in particular to an improved needle-type thickness gauge for thick fireproof coatings on steel structures. Background Technology

[0002] In the field of construction engineering, steel structures are widely used due to their advantages such as high strength and lightweight. However, steel has poor fire resistance, so a thick fire-retardant coating needs to be applied to its surface to slow down the rate of temperature rise during a fire and ensure the safety of the building structure. The thickness of the thick fire-retardant coating on steel structures is a key indicator for measuring their fire resistance performance. Accurate measurement of the coating thickness is of great significance for project quality acceptance, safety assessment, and subsequent maintenance.

[0003] Existing needle-type thickness gauges for detecting the thickness of thick fire-resistant coatings on steel structures have many limitations. Traditional equipment often separates drilling and measurement functions, requiring operators to first use a separate drilling tool to drill holes in the coating and then switch to a measuring tool for thickness measurement. This cumbersome process and repeated tool changes not only prolong the inspection time and reduce work efficiency but may also affect measurement accuracy due to deviations between the drilling and measurement positions.

[0004] In terms of functional completeness, most existing thickness gauges only have measurement functions. The coating holes left after drilling need to be filled with additional repair materials and tools. If not treated in time, the holes may become channels for moisture and corrosive media to enter, affecting the fire resistance of the coating and the service life of the steel structure.

[0005] To address this, an improved needle-type thickness gauge for thick fire-resistant coatings on steel structures is proposed. Utility Model Content

[0006] The purpose of this invention is to solve the above problems by proposing a needle-type thickness gauge for thick fireproof coatings of steel structure that integrates drilling, measurement, and hole repair functions, is easy to operate, has accurate measurement, and has a reasonable structural design, so as to improve the efficiency and quality of inspection work and meet the needs of practical engineering applications.

[0007] To achieve the above objectives, this utility model provides the following technical solution: an improved steel structure thick fireproof coating needle thickness gauge, including an auxiliary drilling frame, a scale welded to both ends of the front surface of the auxiliary drilling frame, a measuring anvil connected to the lower end of the scale in a slot-type connection, a digital display head slidably mounted on the scale, a measuring stylus inserted into the inside of the measuring anvil, a handle welded to one side of the auxiliary drilling frame, and the upper end of the measuring stylus linked to the inside of the digital display head.

[0008] Preferably, a sponge sleeve is glued and fixed to the outside of the handle, and control buttons are provided on the surface of the digital display head.

[0009] Preferably, the auxiliary drilling frame includes a slide frame, with its two sides fixedly connected to the two ends of the handle, and its two ends of the front surface fixedly connected to the two ends of the scale. A slide frame is slidably installed in the slide groove inside the slide frame. An electric motor is bonded and fixed in the slide frame as a drive source. A No. 1 threaded hole plate is bonded to the middle of the slide groove inside the slide frame. A No. 2 threaded hole plate is bonded to the lower end of the slide groove inside the slide frame. The threaded part of the drill bit screw passes through the threaded through holes of the No. 1 threaded hole plate and the No. 2 threaded hole plate.

[0010] Preferably, the drill bit portion of the drill screw is inserted into the through hole at the lower end of the slide rail, the threaded portion of the drill screw is thicker than the drill bit portion, and the output end of the electric motor is fixedly connected to the upper end of the drill screw. The electric motor is the driving source for driving the drill screw to rotate.

[0011] Preferably, the auxiliary drilling frame further includes a rubber ring bonded and fixed in the groove at the upper end of the slide frame; a storage cylinder inserted into the groove at the upper end of the slide frame, with one end of the storage cylinder inserted into the slide groove inside the slide frame; and a piston rod inserted into the storage cylinder, with an annular groove on the outer side of the piston head of the piston rod.

[0012] Preferably, the inner side of the rubber ring is provided with an annular groove, which is used to prevent the storage cylinder from slipping out of the groove at the upper end of the slide frame.

[0013] Preferably, the rear end of the digital display head is inserted into the slide groove on the side of the slide frame.

[0014] The beneficial effects of this utility model are as follows: Through the design of this needle-type thickness gauge, the beneficial effects are as follows:

[0015] Convenient and efficient operation: It integrates drilling and measurement functions, and the electric motor can be started, stopped and steered through the control buttons on the digital display head, making the operation process smooth; the handle with a sponge cover improves grip comfort, reduces fatigue, and is easy to carry and operate.

[0016] Accurate and reliable measurement: The measuring anvil is attached to the coating surface as a stable reference, the probe directly contacts the coating to transmit thickness information, the digital display head converts mechanical displacement into digital display, and the scale ensures measurement accuracy.

[0017] Complete and practical functions: It has integrated functions of drilling, measurement and hole repair. The storage cylinder can store and fill repair materials to avoid the problem of coating holes left after measurement and improve the practicality of the equipment.

[0018] The structure is reasonably designed: the auxiliary drilling frame provides stable support, the connection method of each component is easy to install and adjust, the sliding frame and sliding groove cooperate to ensure smooth drilling and resetting, and the overall structure is compact and has good stability. Attached Figure Description

[0019] Appendix Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Appendix Figure 2 This is an exploded view of the auxiliary drilling frame structure of this utility model;

[0021] Appendix Figure 3 This is a schematic diagram of a portion of the scale, measuring anvil, digital display head, and measuring stylus structure of this utility model.

[0022] Appendix Figure 4 This is the utility model Figure 1 Enlarged diagram of part A in the middle;

[0023] Appendix Figure 5 This is the utility model Figure 2 Enlarged schematic diagram of part B in the middle.

[0024] Legend: 1. Auxiliary drilling frame; 101. Slide frame; 102. Slide frame; 103. Electric motor; 104. No. 1 threaded hole plate; 105. No. 2 threaded hole plate; 106. Drill bit screw; 107. Rubber ring; 108. Storage cylinder; 109. Piston rod; 2. Scale; 3. Measuring anvil; 4. Digital display head; 5. Stylus; 6. Handle. Detailed Implementation

[0025] 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.

[0026] See Figure 1-5 As shown in the figure, this embodiment of an improved steel structure thick fireproof coating needle thickness gauge includes an auxiliary drilling frame 1. A scale 2 is welded to both ends of the front surface of the auxiliary drilling frame 1. A measuring anvil 3 is installed in a slot at the lower end of the scale 2. A digital display head 4 is slidably installed on the scale 2. A measuring stylus 5 is inserted and installed inside the measuring anvil 3. A handle 6 is welded to one side of the auxiliary drilling frame 1. The upper end of the measuring stylus 5 is linked and connected to the inside of the digital display head 4.

[0027] A sponge sleeve is glued and fixed to the outside of the handle 6, and a control button is provided on the surface of the digital display head 4.

[0028] Specifically, the auxiliary drilling frame 1 serves as the main support structure of the equipment, integrating drilling-related components such as the slide frame 101 and the slide frame 102, providing a stable framework for drilling operations. It also connects components such as the scale 2 and the handle 6 to ensure the integrity of the overall structure and the stability during operation.

[0029] The scale 2 provides a length reference for measurement, and the digital display head 4 can slide on it. The thickness of the fireproof coating can be measured in conjunction with the digital display head 4. By cooperating with the digital display head 4, the distance that the probe 5 moves, i.e. the thickness of the coating, can be intuitively reflected.

[0030] When measuring, the measuring anvil 3 needs to be in contact with the coating surface as a reference surface to ensure that the starting point of the probe 5 is stable and to ensure the accuracy of the measurement. It is connected to the lower end of the scale 2 by a slot for easy installation and adjustment.

[0031] The digital display head 4 is used to display the measured thickness of the fireproof coating. Through linkage with the probe 5, the mechanical displacement of the probe 5 is converted into a digital signal and displayed. The control buttons on the surface can control the start, stop and rotation of the electric motor 103.

[0032] During the measurement process, the probe 5 is aligned with the coating hole and pressed down. Its upper end is connected to the inside of the digital display head 4. By pushing the digital display head 4 to move on the scale 2, the thickness information of the coating is transmitted to the digital display head 4. It is the component that directly contacts the coating for measurement.

[0033] The handle 6 is designed for the operator to hold, making it convenient to carry and operate the equipment. The sponge sleeve glued to the outside increases the comfort of holding the equipment and reduces hand fatigue during operation.

[0034] See appendix Figure 1-5 As shown, the auxiliary drilling frame 1 includes a slide frame 101, with its two sides fixedly connected to the two ends of the handle 6, and its two ends of the front surface fixedly connected to the two ends of the scale 2. A slide frame 102 is slidably installed in the slide groove inside the slide frame 101. An electric motor 103 is bonded and fixed in the slide frame 102 as a drive source. A first threaded hole plate 104 is bonded to the middle of the slide groove inside the slide frame 101. A second threaded hole plate 105 is bonded to the lower end of the slide groove inside the slide frame 101. The threaded part of the drill bit screw 106 passes through the threaded through holes of the first threaded hole plate 104 and the second threaded hole plate 105.

[0035] The drill bit portion of the drill bit screw 106 is inserted into the through hole at the lower end of the slide frame 101. The threaded portion of the drill bit screw 106 is thicker than the drill bit portion. The output end of the electric motor 103 is fixedly connected to the upper end of the drill bit screw 106. The electric motor 103 is the driving source for driving the drill bit screw 106 to rotate.

[0036] The auxiliary drilling frame 1 also includes a rubber ring 107 bonded and fixed in the groove at the upper end of the slide frame 101; a storage cylinder 108 inserted into the groove at the upper end of the slide frame 101, with one end of the storage cylinder 108 inserted into the slide groove inside the slide frame 101; and a piston rod 109 inserted into the storage cylinder 108, with an annular groove on the outer side of the piston head of the piston rod 109.

[0037] The rubber ring 107 has an annular groove on its inner side, which is used to prevent the storage cylinder 108 from slipping out of the groove at the upper end of the slide frame 101.

[0038] The rear end of the digital display head 4 is inserted into the slide groove on the side of the slide frame 101.

[0039] Specifically, the slide frame 101 provides a track for the slide frame 102 to slide up and down, and the slide groove inside restricts the movement direction of the slide frame 102 to ensure the stable movement of the slide frame 102 and the drill screw 106 during the drilling process. At the same time, the upper groove is used to install the storage cylinder 108.

[0040] The slide frame 102 can slide in the slide groove inside the slide frame 101. An electric motor 103 is glued and fixed inside, which drives the electric motor 103 and the drill screw 106 to move up and down together, so as to realize the feed and retraction of the drill screw 106.

[0041] The electric motor 103 serves as the driving source, driving the drill bit screw 106 to rotate clockwise or counterclockwise by reversing its direction, providing power for the rotation of the drill bit screw 106, and is the power device for drilling operations.

[0042] Both the No. 1 threaded hole plate 104 and the No. 2 threaded hole plate 105 have threaded through holes through which the threaded part of the drill bit screw passes. When the electric motor 103 drives the drill bit screw 106 to rotate, the drill bit screw 106 can move up and down by means of thread engagement, which plays the role of guidance and transmission.

[0043] The drill screw 106 rotates under the drive of the electric motor 103 and moves up and down by means of the thread engagement with the first thread hole plate 104 and the second thread hole plate 105. The drill bit part at its lower end can be a wood drill or an alloy drill bit for drilling holes in the fireproof coating and can reduce the potential impact on the steel plate.

[0044] The rubber ring 107 is bonded and fixed in the groove at the upper end of the slide frame 101. An annular groove is provided on the inner side to prevent the storage cylinder 108 from slipping out of the groove at the upper end of the slide frame 101 and to ensure the stability of the storage cylinder during use.

[0045] The storage cylinder 108 is used to store uncured fireproof coating material. One end of it is inserted into the groove inside the chute frame 101. When restoring the hole, the piston rod 109 squeezes the material inside into the hole of the coating to achieve filling and repair of the drilled hole.

[0046] The piston rod 109 is inserted into the storage cylinder 108. By inserting and pulling it out, material can be filled into the storage cylinder 108 or material can be squeezed out. Under the push of the upper end of the electric motor 103, the material is squeezed into the storage cylinder 108. Under the push of the upper end of the electric motor 103, the piston rod 109 completes the material filling action for hole repair. The annular groove on the outer side of its piston head can enhance the sealing performance.

[0047] The operation process of this utility model is as follows: During preparation, it is confirmed that the storage cylinder 108 has been filled with uncured fireproof coating material, the piston rod 109 is installed in place, and the rubber ring 107 fixes the storage cylinder 108 to prevent slippage.

[0048] During drilling, hold handle 6 and place the lower end of drill bit 106 against the surface of the thick fireproof coating on the steel structure to ensure a flat drilling position. Press the control button on the digital display 4 to start the electric motor 103 and drive the drill bit 106 to rotate clockwise. The drill bit 106 moves downward through the threaded engagement of threaded hole plate 104 and threaded hole plate 105. At the same time, the slide frame 102 descends synchronously along the slide groove of the slide frame 101. When the drilling resistance suddenly increases (indicating that it may be approaching the steel structure), press the control button to stop drilling. At this time, observe the bottom of the hole with a probe or the naked eye: if the bottom of the hole shows a metallic luster (steel structure), stop drilling. If the bottom of the hole is non-metallic (not penetrating the coating), drill again until the steel plate is touched.

[0049] When the drill bit is reset, press the control button on the digital display head 4 to control the electric motor 103 to rotate counterclockwise. The drill bit screw 106 and the slide frame 102 rise along the slide groove until they return to their original positions.

[0050] When measuring the thickness, keep holding the handle 6, align the probe 5 with the pre-drilled coating hole and press it down. The probe 5 pushes the digital display head 4 to slide upward along the scale 2. Continue pressing until the measuring anvil 3 is completely in contact with the coating surface. At this time, the value displayed by the digital display head 4 is the coating thickness at that point. Record the value.

[0051] When repeating and averaging, follow the drilling, resetting, and measurement steps described above, repeat the operation at different locations on the coating, and take the average of the multiple measurements as the final thickness result.

[0052] During hole repair, remove the storage cylinder 108 from the groove at the upper end of the slide frame 101, pull out the piston rod 109, add uncured fireproof coating material to the storage cylinder 108, reinsert the piston rod 109 into the storage cylinder 108, and put the storage cylinder 108 back into the groove of the slide frame 101, ensuring that the rubber ring 107 is firmly fixed. Press the control button of the digital display head 4 to make the electric motor 103 rotate counterclockwise. The slide frame 102 drives the electric motor 103 to rise. The upper end of the electric motor 103 pushes the piston rod 109 to squeeze into the storage cylinder 108, injecting the material into the coating hole through the tip of the storage cylinder 108, thus completing the repair.

[0053] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A needle-type thickness gauge for thick fire-resistant coatings on steel structures with an improved structure, characterized in that: The auxiliary drilling frame (1) is provided with scales (2) welded to both ends of the front surface of the auxiliary drilling frame (1). A measuring anvil (3) is installed in a slot at the lower end of the scale (2). A digital display head (4) is slidably installed on the scale (2). A probe (5) is inserted into the measuring anvil (3). A handle (6) is welded to one side of the auxiliary drilling frame (1). The upper end of the probe (5) is linked to the inside of the digital display head (4).

2. The improved steel structure thick fireproof coating needle thickness gauge according to claim 1, characterized in that: A sponge sleeve is glued and fixed to the outside of the handle (6), and a control button is provided on the surface of the digital display head (4).

3. The improved steel structure thick fireproof coating needle thickness gauge according to claim 2, characterized in that: The auxiliary drilling frame (1) includes a slide frame (101), whose two sides are fixedly connected to the two ends of the handle (6), and whose two ends of the front surface are fixedly connected to the two ends of the scale (2). A slide frame (102) is slidably installed in the slide groove inside the slide frame (101). An electric motor (103) is bonded and fixed in the slide frame (102) as a driving source. A first threaded hole plate (104) is bonded to the middle of the slide groove inside the slide frame (101). A second threaded hole plate (105) is bonded to the lower end of the slide groove inside the slide frame (101). The threaded part passes through the threaded through hole of the first threaded hole plate (104) and the second threaded hole plate (105). The drill bit screw (106) is threaded through the threaded through hole of the first threaded hole plate (104) and the second threaded hole plate (105).

4. The improved steel structure thick fireproof coating needle thickness gauge according to claim 3, characterized in that: The drill bit part of the drill screw (106) is inserted into the through hole at the lower end of the slide frame (101). The threaded part of the drill screw (106) is thicker than the drill bit part. The output end of the electric motor (103) is fixedly connected to the upper end of the drill screw (106). The electric motor (103) is the driving source for driving the drill screw (106) to rotate.

5. The improved steel structure thick fireproof coating needle thickness gauge according to claim 4, characterized in that: The auxiliary drilling frame (1) also includes a rubber ring (107) bonded and fixed in the groove at the upper end of the slide frame (101); a storage cylinder (108) inserted into the groove at the upper end of the slide frame (101), with one end of the storage cylinder (108) inserted into the slide groove inside the slide frame (101); and a piston rod (109) inserted into the storage cylinder (108), with an annular groove on the outer side of the piston head of the piston rod (109).

6. The improved steel structure thick fireproof coating needle thickness gauge according to claim 5, characterized in that: The rubber ring (107) has an annular groove on its inner side. The rubber ring (107) is used to prevent the storage cylinder (108) from slipping out of the groove at the upper end of the slide frame (101).

7. The improved steel structure thick fireproof coating needle thickness gauge according to claim 6, characterized in that: The rear end of the digital display head (4) is inserted into the slide groove on the side of the slide frame (101).

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