Square cutting device for tensile bond strength test of thermal insulation system

Abstract

This invention discloses a square cutting device for testing the tensile bond strength of a thermal insulation system. The device includes a housing with a circular through-slot inside, within which a drive housing is rotatably mounted. The front surface of the drive housing has two parallel saw chains spaced 100mm apart. The rear surface of the drive housing has protrusions on all four sides, which are embedded in grooves on the rear surface of the housing. A rear cover is rotatably connected to the rear of the housing. Circular bases are located on all four sides of the front surface of the housing, with compression spring rods connected forward to the outer sides of each base. Markers are located on the outer sides of two compression spring rods on the opposite side. This cutting device requires only two cuts for sampling, resulting in high efficiency. It also offers good cutting stability, reducing deviations. Furthermore, it allows for control of the cutting depth and dust collection, and is easy to use.

Description

Technical Field

[0001] This invention relates to the field of tensile bond strength testing equipment, and more specifically, to a square cutting device for tensile bond strength testing of thermal insulation systems. Background Technology

[0002] The tensile bond strength test of the thermal insulation system should be conducted after the thermal insulation system has reached the required curing age and before the next construction process. At least one test piece should be conducted for each inspection batch. For each batch, a representative section of the thermal insulation system wall with a surface area of ​​not less than 2 mm should be randomly selected as the test specimen. Five testing points should be evenly distributed on this test specimen, with a distance of not less than 500 mm between any two adjacent testing points. On-site testing should be conducted according to the following steps: Mark a 100 mm x 100 mm square dimension line on the selected test specimen surface. Then, use a cutting saw to cut perpendicularly along the outer edge of the dimension line to the specified location. Currently, this is generally done manually using a handheld electric saw. This cutting method has the following problems: firstly, cutting a square sample requires four cuts, resulting in low work efficiency; secondly, vibration is prone to occur during the cutting process, leading to instability and large deviations in the cutting dimensions; and thirdly, the cutting depth is difficult to control, and dust is inconvenient to collect. Summary of the Invention

[0003] The purpose of this invention is to provide a square cutting device for testing the tensile bond strength of a thermal insulation system. This cutting device only requires two cuts to obtain samples, resulting in high working efficiency. It also has good cutting stability, which can reduce deviations. In addition, it can control the cutting depth and collect dust, making it easy to use.

[0004] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0005] A square cutting device for testing the tensile bond strength of a thermal insulation system includes a housing. The housing has a circular through-slot, and a drive housing is rotatably mounted inside the slot. The front surface of the drive housing has two parallel saw chain blades spaced 100mm apart. The rear surface of the drive housing has protrusions on all four sides, which are embedded in grooves on the rear surface of the housing. A rear cover is rotatably connected to the rear side of the housing. Circular bases are provided on all four sides of the front surface of the housing. Compression spring rods are connected forward to the outer sides of each circular base. Two compression spring rods on the opposite side have markings on their outer sides. The rod, the marker rod, is respectively fitted onto the upper and lower compression spring rods by two mounting sleeves. The marker rod slides outside the scale. A top rod is connected to the front of the compression spring rod. The top rod is pressed against the cutting wall surface. A surrounding support rod is provided between the top rods. Each support rod is fitted onto the top rod body by a sleeve, and a stabilizing rod is connected to the outside of the support rod on one side. The stabilizing rod is L-shaped and is fixed to the stabilizing seat backward. The outer sides of the two lower top rods are welded with through-grooves. Through-grooves are machined on the surface of the through-grooves, and dust collection bags are bonded downward through the through-grooves.

[0006] Furthermore, the drive housing can be pulled out and rotated for adjustment after the rear cover of the housing is opened.

[0007] Furthermore, after the rear cover is rotated and closed, it is connected and fixed to the housing by a latch.

[0008] Furthermore, the casing has handles on both sides and control buttons on the inner side of the handles. The control buttons are connected to the control panel of the drive chassis via wiring.

[0009] Furthermore, the stabilizer and the scale are welded to the outer side of the casing.

[0010] Compared with existing technologies, the beneficial effects of the present invention are as follows:

[0011] This invention improves stability and reduces deviation during the cutting process by incorporating structures such as compression spring rods, top rods, support rods, and stabilizing rods. It completes the cutting work through secondary cutting using two parallel saw chains spaced 100mm apart, resulting in high efficiency. The inclusion of a marker and scale structure allows for displaying the cutting depth, facilitating control. Finally, the inclusion of a slotted plate structure for installing dust collection bags facilitates dust collection and processing. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of the cutting device of the present invention;

[0013] Figure 2 This is a schematic diagram of the scale mounting structure of the present invention;

[0014] Figure 3 This is a schematic diagram of the support rod installation structure of the present invention;

[0015] Figure 4 This is a schematic diagram of the internal structure of the back cover of the present invention after it is opened;

[0016] In the diagram: 1. Housing; 2. Drive unit; 3. Saw chain; 4. Compression spring rod; 5. Top rod; 6. Through slot plate; 7. Dust bag; 8. Handle; 9. Scale; 10. Mounting sleeve; 11. Marker; 12. Stabilizer; 13. Stabilizer bar; 14. Support rod; 15. Sleeve; 16. Rear cover; 17. Groove; 18. Lock. Detailed Implementation

[0017] To make the technical means, creative features, objectives and effects of the invention easier to understand, the invention will be further explained below with reference to specific illustrations.

[0018] like Figure 1 As shown, the drive chassis 2 in this application is nested and installed inside the housing 1, as... Figure 4 As shown, the drive housing 2 is positioned by being embedded into the groove 17 by the protrusion on the rear side, and is limited by the rear cover 16 after being closed. When it is necessary to rotate the drive housing 2, that is, to adjust the direction of the two saw chain blades 3 with a parallel spacing of 100mm, the lock 18 is opened and the rear cover 16 is rotated to open it. The drive housing 2 is pulled out backward, so that the protrusion is disengaged from the groove 17, and the drive housing 2 can be rotated 90 degrees. Compression spring rods 4 and top rods 5 are provided around the front surface of the housing 1. The outer side of the top rods 5 on both sides below is provided with through slot plates 6. Dust collection bags 7 can be glued and installed between the through slot plates 6 to collect the dust falling during the cutting process. Handles 8 are provided on both sides of the housing 1 for easy gripping by the operator. Control buttons are provided inside the handles 8.

[0019] like Figure 2 As shown, a scale 11 is fixed to the outside of the compression spring rod 4 by the mounting sleeve 10. The scale 11 moves backward as the compression spring rod 4 is compressed, and then slides on the scale 9 to show the cutting depth distance.

[0020] like Figure 3 As shown, a support rod 14 is installed between the top rods 5 through the sleeve 15, which improves the cutting stability. At the same time, the outer side of one side of the support rod 14 is also connected to the stabilizing seat 12 through the stabilizing rod 13, which further improves the cutting stability.

[0021] In practice, the operator holds the handles 8 on both sides of the cutting device with both hands, aligns the two parallel saw chains 3 with a spacing of 100mm with the square dimension line, and simultaneously presses the top rod 5 against the wall to begin the cutting work. During operation, the operator pushes the housing 1 inward to make the saw chains 3 cut into the wall, compressing the spring rod 4. The operator can observe the position of the marker 11 on the scale 9 to determine the cutting depth. After one cut is completed, the saw chains 3 are pulled outward, the back cover 16 is opened, the drive housing 2 is pulled out backward and rotated 90 degrees before being inserted into the housing 1, so that the protrusion is aligned and embedded in the groove 17. The above cutting operation is repeated to complete the square sample cutting work.

[0022] The foregoing has shown and described the basic principles and main features of the present invention, as well as its advantages. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. A square cutting device for testing the tensile bond strength of a thermal insulation system, characterized in that: The device includes a housing. Inside the housing is a circular through-slot, and a drive housing is rotatably mounted within this slot. The front surface of the drive housing has two parallel saw chain strips spaced 100mm apart. The rear surface of the drive housing has protrusions on all four sides, which are embedded in grooves on the rear surface of the housing. A rear cover is rotatably connected to the rear side of the housing. The front surface of the housing has circular bases on all four sides, and compression spring rods are connected forward to the outer sides of each circular base. On the other side, two upper and lower compression spring rods have markers on their outer sides. These markers are connected to the upper... The two lower mounting sleeves are respectively fitted onto the upper and lower compression spring rods. The scale rod slides outside the ruler. A top rod is connected to the front of the compression spring rod. The top rod is pressed against the cutting wall surface. A surrounding support rod is provided between the top rods. The support rods are all fitted onto the top rods through sleeves. A stabilizing rod is connected to the outside of the support rod on one side. The stabilizing rod is L-shaped and is fixed to the stabilizing seat backward. The outer sides of the two lower top rods are welded with through-groove plates. The surface of the through-groove plates is machined with through grooves, and a dust collection bag is bonded downward through the through grooves.

2. The square cutting device for tensile bond strength testing of a thermal insulation system according to claim 1, characterized in that: The drive housing can be pulled out and rotated for adjustment after the rear cover of the housing is opened.

3. The square cutting device for tensile bond strength testing of a thermal insulation system according to claim 1, characterized in that: After the rear cover is rotated and closed, it is connected and fixed to the housing by a latch.

4. A square cutting device for tensile bond strength testing of a thermal insulation system according to claim 1, characterized in that: The casing has handles on both sides, and the inner side of each handle has a control button. The control button is connected to the control panel of the drive chassis via a wire.

5. A square cutting device for tensile bond strength testing of a thermal insulation system according to claim 1, characterized in that: The stabilizer and scale are welded to the outer side of the casing.

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