A steel structure framework welding point hardness detection device

Abstract

This utility model discloses a steel structure frame weld hardness testing device, relating to the technical field of welding testing equipment. It includes a testing instrument body and a testing unit comprising a testing probe, a gel storage tank, and a glue application mechanism. The glue application mechanism includes a fixed cover, a movable cover, an elastic compression component, a glue application rod, and a reciprocating transmission assembly. The movable cover is vertically slidably fitted inside the fixed cover. The elastic compression component connects the fixed cover and the movable cover. The glue application rod is installed between the fixed cover and the movable cover via the reciprocating transmission assembly, and its side end is densely covered with overflow holes. The pump end of the gel storage tank abuts against the top of the movable cover. When the movable cover compresses the steel structure frame, it also compresses the pump end of the gel storage tank, causing the gel in the storage tank to be transported to the glue application rod through a hose. Simultaneously, the movable cover drives the glue application rod via the reciprocating transmission assembly to apply the gel to the weld points of the steel structure frame, achieving automatic glue application without power, which is more energy-efficient and convenient.

Description

Technical Field

[0001] This utility model relates to the field of welding inspection equipment technology, and in particular to a device for testing the hardness of weld points on steel structure frames. Background Technology

[0002] Steel structures are structures made of steel materials, mainly composed of steel beams, steel columns, steel trusses, and other components made of shaped steel and steel plates. These components are typically connected by welds, bolts, or rivets. The welded points of the steel structure frame are its most vulnerable parts. When the welding quality is substandard, cracking can easily occur during use, affecting the lifespan and even creating safety hazards. Therefore, after the steel structure frame is erected, weld point inspection instruments are generally used to test the weld points. The probe is connected to a monitor via a data transmission cable, and the probe makes contact with the weld points to inspect them.

[0003] According to the search, for example, the patent publication number CN222671620U provides a device for testing the hardness of weld joints of steel structure skeletons for building engineering. It includes a testing instrument body, a testing probe is set on the right side of the testing instrument body, and a connector is connected to the top of the testing probe through a line. The testing probe is used to test the weld joints of the steel structure skeleton.

[0004] Based on the above search and analysis of existing technologies, it was found that most existing testing devices similar to those disclosed above require manual application of gel to the weld joints to be tested, or require the use of automated electrical equipment to apply the gel. The former is cumbersome due to manual application, while the latter incurs power consumption, reducing the standby time of the testing device. Therefore, a steel structure frame weld joint hardness testing device is proposed to address these issues. Utility Model Content

[0005] The purpose of this application is to provide a device for testing the hardness of weld joints in steel structure frames, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this application provides the following technical solution: a steel structure frame weld hardness testing device, comprising a testing instrument body and a testing unit electrically connected to the testing instrument body via a data transmission line, the testing unit comprising a testing probe, a gel storage tank and a glue application mechanism;

[0007] The detection probe is connected to the data transmission line, the gel storage tank is detachably installed on the side of the detection probe, and the glue application mechanism is installed on the probe end of the detection probe.

[0008] The glue application mechanism includes a fixed cover, a movable cover, an elastic compression component, a glue application rod, and a reciprocating transmission assembly;

[0009] The fixed cover is fixedly sleeved on the outside of the detection probe, and the movable cover is vertically slidably sleeved on the inside of the fixed cover, and the movable cover is sleeved on the outside of the detection probe. The elastic compression member is vertically fixed between the fixed cover and the movable cover.

[0010] The glue applicator is installed between the fixed cover and the movable cover via a reciprocating transmission assembly, and the side end of the glue applicator is densely covered with overflow holes. The pump end of the gel storage tank extends to the inside of the fixed cover and abuts against the top of the movable cover.

[0011] In the aforementioned steel structure frame weld point hardness testing device, when the movable cover squeezes the steel structure frame, it also squeezes the pump end of the gel storage tank, causing the gel in the gel storage tank to be transported to the coating rod through the hose. At the same time, the movable cover drives the coating rod through the reciprocating transmission component to apply the gel to the weld point of the steel structure frame, realizing automatic coating without power, which is more energy-saving and convenient.

[0012] As a further supplement to this solution, the reciprocating transmission assembly includes a reciprocating group and a transmission group, and a suspension frame is fixed to the inner top of the fixed cover.

[0013] The reciprocating assembly is installed between the suspension frame and the glue applicator, and the transmission assembly is located between the movable cover and the reciprocating assembly;

[0014] When the movable cover compresses the steel structure frame, the movable cover drives the reciprocating group to move the glue-applying rod parallel to the probe surface of the detection probe through the transmission group.

[0015] As a further supplement to this solution, the reciprocating assembly includes a threaded rod, a guide slide, a slider, and a lifting connector;

[0016] Both the threaded rod and the guide slide are horizontally rotatably mounted on the suspension frame. The slider is provided with a threaded hole that matches the thread of the threaded rod and a guide slide hole that matches the sliding of the guide slide. The guide slide is connected to the transmission assembly, and the glue applicator is connected to the slider through a lifting connector.

[0017] As a further supplement to this solution, the lifting connector includes a lifting rod and an elastic tension member;

[0018] The slider is provided with a limiting sliding hole for the vertical sliding of the lifting rod. The bottom end of the lifting rod is fixed to the glue applicator, and the elastic tension member is vertically fixed between the top end of the lifting rod and the slider.

[0019] As a further supplement to this solution, one end of the hose is fixedly connected to the pump end of the gel storage tank, and the other end of the hose passes through the lifting rod from top to bottom and is fixedly connected to the glue applicator.

[0020] As a further supplement to this solution, the transmission assembly includes a transmission gear and a transmission rack;

[0021] The transmission gear is coaxially fixed to the end of the threaded rod, and the transmission rack is vertically fixed to the inner wall of the movable cover. The transmission rack meshes with the transmission gear.

[0022] As a further supplement to this solution, the overflow hole is located on one side of the translational direction during the application of glue by the glue applicator, and the lower end of the glue applicator is provided with a glue spreading groove.

[0023] In summary, the technical effects and advantages of this utility model are as follows:

[0024] 1. In this utility model, through the coordinated arrangement of the movable cover, elastic compression component, glue applicator, and reciprocating transmission assembly, when the movable cover compresses the steel structure frame, the movable cover also compresses the pump end of the gel storage tank, so that the gel in the gel storage tank is transported to the glue applicator through the hose. At the same time, the movable cover drives the glue applicator through the reciprocating transmission assembly to apply the gel to the weld points of the steel structure frame, realizing automatic glue application without power, which is more energy-saving and convenient.

[0025] 2. In this utility model, by combining the fixed cover, the movable cover and the elastic compression member, when not in use, the movable cover blocks the outside of the probe end of the detection probe under the action of the elastic compression member, which can effectively protect the probe end of the detection probe and make the probe end of the detection probe less susceptible to external impact.

[0026] 3. In this utility model, by setting the overflow hole on one side of the translational direction during the glue application process of the glue applicator, and setting the glue spreading groove at the lower end of the glue applicator, the gel overflowing from the overflow hole during the glue application process is squeezed onto the weld joint of the steel structure frame, and then the glue spreading groove on the moving glue applicator is used to shape and flatten the gel at the weld joint of the steel structure frame. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 This is a schematic diagram of the overall three-dimensional structure in this embodiment;

[0029] Figure 2 This is a cross-sectional structural diagram of the fixed cover and the movable cover in this embodiment;

[0030] Figure 3 This is a schematic diagram of the structure of the movable cover in this embodiment;

[0031] Figure 4 This is a cross-sectional view of the fixing cover in this embodiment;

[0032] Figure 5 This is a schematic diagram of the reciprocating transmission assembly in this embodiment;

[0033] Figure 6 This is a schematic diagram of the slider in this embodiment;

[0034] Figure 7 This is a partial cross-sectional structural diagram of the detection unit in its initial state in this embodiment;

[0035] Figure 8 This is a partial cross-sectional structural diagram of the detection unit in the detection state in this embodiment.

[0036] In the diagram: 1. Detector body; 2. Data transmission line; 3. Detection unit; 31. Detection probe; 32. Gel storage tank; 33. Fixed cover; 34. Movable cover; 35. Elastic compression component; 36. Transmission gear; 37. Glue applicator; 3701. Glue spreading groove; 38. Reciprocating assembly; 381. Lifting rod; 382. Guide slide rod; 383. Threaded rod; 384. Slider; 38401. Guide slide hole; 38402. Threaded hole; 38403. Limiting slide hole; 385. Elastic tension component; 39. Transmission rack; 310. Hose; 311. Suspension frame. Detailed Implementation

[0037] 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.

[0038] Example: Reference Figure 1-8 The device shown is a steel structure frame weld hardness testing device, including a testing instrument body 1 and a testing unit 3 electrically connected to the testing instrument body 1 via a data transmission line 2. The testing unit 3 includes a testing probe 31, a gel storage tank 32 and a glue application mechanism. The testing probe 31 is connected to the data transmission line 2. The testing instrument body 1 and the testing probe 31 are both conventional complete sets of metal flaw detection equipment, such as the conventional OU5100 type weld ultrasonic flaw detector. The power supply and principle of the testing probe 31 and any other electrical equipment involved are clear to those skilled in the art and will not be described in detail here.

[0039] The gel storage tank 32 is detachably installed on the side of the detection probe 31, and the glue application mechanism is installed on the probe end of the detection probe 31. Specifically, the glue application mechanism includes a fixed cover 33, a movable cover 34, an elastic compression member 35, a glue application rod 37, and a reciprocating transmission assembly. The elastic compression member 35 can be a conventional compression spring. The fixed cover 33 is fixedly sleeved on the outside of the detection probe 31, and the movable cover 34 is vertically slidably sleeved on the inside of the fixed cover 33 and sleeved on the outside of the detection probe 31. The elastic compression member 35 is vertically fixed between the fixed cover 33 and the movable cover 34. The glue application rod 37 is installed between the fixed cover 33 and the movable cover 34 through the reciprocating transmission assembly, and the side end of the glue application rod 37 is densely covered with overflow holes. The pump end of the gel storage tank 32 extends to the inside of the fixed cover 33 and abuts against the top of the movable cover 34.

[0040] Based on the above structural configuration, when the movable cover 34 squeezes the steel structure frame, the movable cover 34 squeezes the pump end of the gel storage tank 32, so that the gel in the gel storage tank 32 is transported to the glue applicator 37 through the hose 310. At the same time, the movable cover 34 drives the glue applicator 37 through the reciprocating transmission component to apply the gel to the weld points of the steel structure frame, realizing automatic glue application without power.

[0041] Regarding the aforementioned reciprocating transmission assembly, specifically, the reciprocating transmission assembly includes a reciprocating group and a transmission group. A suspension frame 311 is fixed to the inner top of the fixed cover 33. The reciprocating group is installed between the suspension frame 311 and the glue applicator 37. The transmission group is located between the movable cover 34 and the reciprocating group. When the movable cover 34 compresses the steel structure frame, the movable cover 34 drives the glue applicator 37 to move parallel to the probe surface of the detection probe 31 through the transmission group.

[0042] The reciprocating assembly includes a threaded rod 383, a guide slide rod 382, ​​a slider 384, and a lifting connector. The threaded rod 383 and the guide slide rod 382 are both horizontally rotatably mounted on the suspension frame 311. The slider 384 is provided with a threaded hole 38402 that matches the thread of the threaded rod 383 and a guide slide hole 38401 that matches the sliding of the guide slide rod 382. The guide slide rod 382 is connected to the transmission assembly. The lifting connector includes a lifting rod 381 and an elastic tension member 385. The elastic tension member 385 can be a conventional tension spring. The slider 384 is provided with a limiting slide hole 38403 through which the lifting rod 381 slides vertically. The bottom end of the lifting rod 381 is fixed to the glue applicator 37, and the elastic tension member 385 is vertically fixed between the top end of the lifting rod 381 and the slider 384.

[0043] The aforementioned transmission assembly includes a transmission gear 36 and a transmission rack 39. The transmission gear 36 is coaxially fixed to the end of the threaded rod 383, and the transmission rack 39 is vertically fixed to the inner wall of the movable cover 34. The transmission rack 39 meshes with the transmission gear 36.

[0044] Based on the above-mentioned arrangement of transmission gear 36, transmission rack 39, threaded rod 383, slider 384 and lifting connector, as the movable cover 34 slides along the inner side of the fixed cover 33, the transmission rack 39 moves with the movable cover 34. Utilizing the meshing action between the transmission rack 39 and the transmission gear 36, the transmission gear 36 drives the threaded rod 383 to rotate. Utilizing the threaded engagement between the threaded rod 383 and the slider 384, the slider 384 moves along the length of the threaded rod 383. Simultaneously, the lifting rod 381 carries the glue applicator 37 to adhere to the weld points of the steel structure frame. At the same time, the movable cover 34 squeezes the pump end of the gel storage tank 32, causing the gel in the gel storage tank 32 to be delivered to the glue applicator 37 through the hose 310. The gel overflows from the overflow hole and is applied to the weld points of the steel structure frame.

[0045] One end of the hose 310 is fixedly connected to the pump end of the gel storage tank 32, and the other end of the hose 310 passes through the lifting rod 381 from top to bottom and is fixedly connected to the glue applicator 37.

[0046] In addition, the overflow hole is located on one side of the translational direction during the application of glue by the glue applicator 37. The lower end of the glue applicator 37 is provided with a glue spreading groove 3701. During the application of glue by the glue applicator 37, the gel overflowing from the overflow hole is squeezed onto the weld joint of the steel structure frame. The glue spreading groove 3701 on the moving glue applicator 37 is used to shape and flatten the gel at the weld joint of the steel structure frame.

[0047] It should be further noted that this solution is best suited for the inspection of planar weld points of conventional steel structure frames; in addition, the pumping structure of the pumping end of the gel storage tank 32 is a conventional gel and emulsion pumping structure, such as the extrusion pumping structure in a cosmetic container disclosed in patent publication number CN110192705B.

[0048] The working principle of this utility model is as follows: During the test, the operator holds the test probe 31 and makes the probe end of the test probe 31 contact the weld point of the steel structure frame to be tested. During this process, the movable cover 34 and the glue applicator 37 first contact the steel structure frame. The movable cover 34 slides along the inner side of the fixed cover 33 under the squeezing action between it and the steel structure frame. At the same time, the glue applicator 37 slides perpendicular to the moving direction of the slider 384.

[0049] As the movable cover 34 slides along the inner side of the fixed cover 33, the transmission rack 39 moves with the movable cover 34. Utilizing the meshing between the transmission rack 39 and the transmission gear 36, the transmission gear 36 drives the threaded rod 383 to rotate. Utilizing the threaded engagement between the threaded rod 383 and the slider 384, the slider 384 moves along the length of the threaded rod 383. It also moves the glue applicator 37 to the weld points of the steel structure frame via the lifting rod 381. At the same time, the movable cover 34 squeezes the pump end of the gel storage tank 32, causing the gel in the gel storage tank 32 to be delivered to the glue applicator 37 through the hose 310. The gel overflows from the overflow hole and is applied to the weld points of the steel structure frame, achieving automatic glue application without power.

[0050] After the glue applicator 37 is moved to the side of the detection probe 31, as... Figure 8 As shown, the detection probe 31 comes into contact with the weld joint of the steel structure frame coated with gel, and routine flaw detection begins;

[0051] After the test is completed, the movable cover 34 slides in the opposite direction along the inner side of the fixed cover 33 to reset under the elastic force of the elastic compression member 35, and the lifting rod 381 slides in the opposite direction to reset the glue applicator 37 under the elastic force of the elastic tension member 385.

[0052] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A steel structure frame weld hardness testing device, comprising a testing instrument body (1) and a testing unit (3) electrically connected to the testing instrument body (1) via a data transmission line (2), characterized in that, The detection unit (3) includes a detection probe (31), a gel storage tank (32), and a glue application mechanism; The detection probe (31) is connected to the data transmission line (2), the gel storage tank (32) is detachably installed on the side of the detection probe (31), and the glue application mechanism is installed on the probe end of the detection probe (31); The glue application mechanism includes a fixed cover (33), a movable cover (34), an elastic compression member (35), a glue application rod (37), and a reciprocating transmission assembly; The fixed cover (33) is fixedly sleeved on the outside of the detection probe (31), the movable cover (34) is vertically slidably sleeved on the inside of the fixed cover (33), and the movable cover (34) is sleeved on the outside of the detection probe (31). The elastic compression member (35) is vertically fixed between the fixed cover (33) and the movable cover (34). The glue-applying rod (37) is installed between the fixed cover (33) and the movable cover (34) via a reciprocating transmission assembly, and the side end of the glue-applying rod (37) is densely covered with overflow holes. The pump end of the gel storage tank (32) extends to the inside of the fixed cover (33) and abuts against the top of the movable cover (34). When the movable cover (34) squeezes the steel structure frame, the movable cover (34) squeezes the pump end of the gel storage tank (32), so that the gel in the gel storage tank (32) is transported to the coating rod (37) through the hose (310). At the same time, the movable cover (34) drives the coating rod (37) to apply the gel to the weld points of the steel structure frame through the reciprocating transmission assembly.

2. The steel structure frame weld hardness testing device according to claim 1, characterized in that: The reciprocating transmission assembly includes a reciprocating group and a transmission group, and a suspension frame (311) is fixed to the inner top of the fixed cover (33); The reciprocating assembly is installed between the suspension frame (311) and the glue applicator (37), and the transmission assembly is located between the movable cover (34) and the reciprocating assembly; When the movable cover (34) squeezes the steel structure frame, the movable cover (34) drives the reciprocating group to move the glue-applying rod (37) parallel to the probe surface of the detection probe (31) through the transmission group.

3. The steel structure frame weld hardness testing device according to claim 2, characterized in that: The reciprocating assembly includes a threaded rod (383), a guide slide rod (382), a slider (384), and a lifting connector; The threaded rod (383) and the guide slide rod (382) are both horizontally rotatably mounted on the suspension frame (311). The slider (384) is provided with a threaded hole (38402) that is adapted to the thread of the threaded rod (383) and a guide slide hole (38401) that is adapted to the sliding of the guide slide rod (382). The guide slide rod (382) is connected to the transmission assembly. The glue applicator (37) is connected to the slider (384) through a lifting connector.

4. The steel structure frame weld hardness testing device according to claim 3, characterized in that: The lifting connector includes a lifting rod (381) and an elastic tension member (385); The slider (384) is provided with a limiting sliding hole (38403) through which the lifting rod (381) slides vertically. The bottom end of the lifting rod (381) is fixed to the glue applicator (37), and the elastic tension member (385) is vertically fixed between the top end of the lifting rod (381) and the slider (384).

5. The steel structure frame weld hardness testing device according to claim 4, characterized in that: One end of the hose (310) is fixedly connected to the pump end of the gel storage tank (32), and the other end of the hose (310) passes through the lifting rod (381) from top to bottom and is fixedly connected to the glue applicator (37).

6. The steel structure frame weld hardness testing device according to claim 3, characterized in that: The transmission assembly includes a transmission gear (36) and a transmission rack (39); The transmission gear (36) is coaxially fixed to the end of the threaded rod (383), and the transmission rack (39) is vertically fixed to the inner wall of the movable cover (34). The transmission rack (39) meshes with the transmission gear (36).

7. The steel structure frame weld hardness testing device according to claim 1, characterized in that: The overflow hole is located on one side of the translational direction during the application of glue by the glue applicator (37), and the lower end of the glue applicator (37) is provided with a glue-laying groove (3701).

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