Light wallboard bearing capacity detection device

Abstract

The invention discloses a light wallboard bearing capacity detection device, and relates to the technical field of light walls.A rotatable wallboard clamping mechanism is arranged, the wallboard clamping mechanism is laterally opened at the beginning to facilitate arrangement of a light wallboard, the wallboard clamping mechanism is driven by descending of a lifting frame to clamp the light wallboard, and the light wallboard clamping mechanism is driven by the lifting frame to clamp the light wallboard. A second stroke is started after clamping, the light wallboard is driven by the wallboard clamping mechanism to rotate and erect, the wallboard clamping mechanism is separated from transmission meshing when the light wallboard is erected to a vertical position, so that the bearing capacity of the light wallboard is conveniently tested, and once the light wallboard topples, the wallboard clamping mechanism can quickly recover clamping and straighten the light wallboard. Therefore, not only is the operation process simplified, but also the clamping accuracy and stability are improved, meanwhile, it can be ensured that the device is kept stable in the testing process, displacement or toppling caused by external force interference is avoided, operators can be protected against accidental injuries, and the safety of the whole detection process is improved.

Description

Technical Field

[0001] The present invention relates to the technical field related to lightweight wall panels, and specifically to a lightweight wall panel bearing capacity detection device. Background Art

[0002] Lightweight wall panels are a new type of energy-saving wall material. They have been widely used in the construction industry due to their light weight, easy installation, energy saving and environmental protection. When installing this type of wall panel, you only need to stand up the panels, apply a small amount of caulking mortar on the male and female panels, and then assemble them. However, lightweight wall panels also have some inherent disadvantages, such as limited load-bearing capacity, easy cracking of the wall, poor sound insulation, and poor moisture-proof performance. These disadvantages make lightweight wall panels in certain specific application scenarios, such as needing to bear large loads or requiring high sound insulation and moisture-proof environments. It may not meet actual needs. Therefore, it is particularly important to test the bearing capacity of lightweight wall panels to ensure their safety and reliability in actual applications.

[0003] Bearing capacity testing is a key link in ensuring the quality of lightweight wall panels. Through testing, possible quality problems of wall panels, such as cracks, honeycombed surfaces, etc., can be discovered in time, thereby avoiding safety accidents in actual applications. Bearing capacity testing usually includes impact resistance testing, compression resistance testing and other aspects to comprehensively evaluate the mechanical properties of lightweight wall panels. These tests not only help to understand the actual bearing capacity of wall panels, but also provide a scientific basis for the design, production and application of wall panels.

[0004] Although the existing lightweight wall panel bearing capacity detection device can meet the detection needs to a certain extent, there are still some shortcomings. For example, when conducting a static pressure test, the existing lightweight wall panel bearing capacity detection device needs to erect the lightweight wall panel to simulate the normal wall panel load for static pressure testing. However, the area of ​​a single lightweight wall panel is large, and it is difficult for one person to operate it. It requires more than two people to successfully erect it, which increases the labor cost of the test. Summary of the invention

[0005] The object of the present invention is to provide a lightweight wall panel bearing capacity detection device to solve the problem that the traditional lightweight wall panel bearing capacity detection device proposed in the above background is difficult to erect and install large wall panels during testing.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a light wall panel bearing capacity detection device, comprising a gantry, wherein a lifting column is rotatably connected inside the gantry, two lifting columns are provided, and the two lifting columns are respectively located at two sides inside the gantry, a lifting frame is transmission-connected on the lifting column, a pressure plate is fixedly connected to the lower part of the lifting frame, a pressure sensor is provided inside the pressure plate, a hydraulic cylinder is fixedly connected to the top of the gantry, an output end of the hydraulic cylinder is fixedly connected to the lifting frame, a wall panel clamping mechanism is rotatably connected to the bottom of the gantry through a first sliding sleeve seat, a wall panel conveyor belt is provided on one side of the bottom of the gantry, and the wall panel conveyor belt is at the same height as the wall panel clamping mechanism; The wallboard clamping mechanism comprises a first clamping block and a second clamping block, and the first clamping block and the second clamping block are rotatably connected; The bottom end of the lifting column is fixedly connected with a first bevel gear, the first bevel gear is meshed with a second bevel gear, the second bevel gear is fixedly connected with the first driving shaft through a keyway, the first driving shaft is slidably connected with a first clutch plate, the first clutch plate is transmission-connected with the second clutch plate, the second clutch plate is slidably connected with the second transmission shaft, the second transmission shaft is fixedly connected with a first gear ring, the first gear ring is connected with the second gear ring through gear transmission, the first gear ring is fixedly connected with a third transmission shaft, the third transmission shaft passes through the second gear ring and the second clamping block, and the third transmission shaft is fixedly connected to the first clamping block, and the second gear ring is fixedly connected to the second clamping block.

[0007] In one example, sliding sleeves are fixedly connected at both ends of the lifting frame, the lifting column passes through the sliding sleeves, a spiral groove is opened on the outside of the lifting column, a spiral slider is processed on the inner wall of the sliding sleeve, and the spiral slider is slidably connected to the spiral groove.

[0008] In one example, one first clamping block is provided, and two second clamping blocks are provided. The two second clamping blocks are respectively located at two ends of the first clamping block, and the first clamping block and the second clamping block are respectively located on two sides of a common rotation axis.

[0009] In one example, the inner sides of the first clamping block and the second clamping block are connected with rubber pads through dovetail grooves, and the outer sides of the rubber pads are processed with anti-slip grooves.

[0010] In one example, a first sliding groove is provided on the outer side of the first driving shaft, and the first clutch plate is slidably connected to the first sliding groove.

[0011] In one example, a second slide groove is provided on the second transmission shaft, the second clutch plate is slidably connected to the second slide groove, one end of the second transmission shaft is fixedly connected to a limiting block plate, and a first spring is provided on the outer sleeve of the second transmission shaft, and the first spring is located between the second clutch plate and the first gear ring.

[0012] In one example, a first groove is fixedly connected to the first clutch plate, and a second protrusion is fixedly connected to the second clutch plate. The first groove and the second protrusion are interlocked, and the cross-sections of the first groove and the second protrusion are both trapezoidal with one side thicker and the other side thinner.

[0013] In one example, a vertical block is provided on the rear side of the two second clamping blocks in the wall panel clamping mechanism, the vertical block is fixedly connected to the gantry, a telescopic slot is opened on the vertical block, the telescopic slot passes through the vertical block, and a positioning pressure block passes through the telescopic slot, one end of the positioning pressure block protrudes out of the outside of the telescopic slot, and the other end of the positioning pressure block is fixedly connected to the first inclined sliding block, the back of the vertical block is slidably connected to a sliding rod through a second sliding sleeve seat, one end of the sliding rod is fixedly connected to a second inclined sliding block, the second inclined sliding block and the first inclined sliding block slide with each other through an inclined surface, a second spring is provided on the outer sleeve of the sliding rod, the second spring is located between the second sliding sleeve seat and the second inclined sliding block, the other end of the sliding rod is fixedly connected to a rotating circle through a connecting rod, and the rotating circle is rotatably connected to the first clutch plate.

[0014] In one example, a first transmission gear and a second transmission gear are disposed between the first gear ring and the second gear ring, and the first gear ring and the first transmission gear are meshed with each other, the first transmission gear and the second transmission gear are meshed with each other, and the second transmission gear and the second gear ring are meshed with each other.

[0015] In one example, when the positioning pressing block slides in the telescopic groove, the maximum sliding distance of the first clutch plate is greater than the length of the shortest side of the first groove and the second protrusion, and less than the length of the widest side of the first groove and the second protrusion.

[0016] Compared with the prior art, the present invention has the following beneficial effects: The present invention proposes a light wall panel bearing capacity detection device, which is provided with a rotatable wall panel clamping mechanism. At the beginning, the wall panel clamping mechanism is opened laterally, which is convenient for the placement of the light wall panel. The wall panel clamping mechanism is driven to clamp the light wall panel by the descending of the lifting frame. After clamping, the second stroke begins, and the light wall panel is driven to rotate and stand up by the wall panel clamping mechanism. When the light wall panel is stood up to the vertical position, the wall panel clamping mechanism is disengaged from the transmission engagement, so as to facilitate the bearing capacity test of the light wall panel. Once the light wall panel falls over, the wall panel clamping mechanism will quickly resume clamping and straighten the light wall panel. This not only simplifies the operation process, but also improves the accuracy and stability of clamping. At the same time, it can ensure that it remains stable during the test process, will not be displaced or tipped over due to external interference, and can also protect the operator from accidental injury, thereby improving the safety of the entire detection process. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the open structure of the wall panel clamping mechanism of the present invention; Figure 2It is a schematic diagram of the closed structure of the wall panel clamping mechanism of the present invention; Figure 3 This is a schematic diagram of the structure of the sliding sleeve of the present invention; Figure 4 It is a schematic diagram of a partial cross-sectional structure of the present invention; Figure 5 For the present invention Figure 4 The enlarged structural diagram at A in the middle; Figure 6 This is a schematic diagram of the vertical stopper structure of the present invention; Figure 7 It is a schematic diagram of the structure of the rotating circle of the present invention; Figure 8 This is a schematic diagram of the gear transmission structure of the present invention; Fig. 9 It is a schematic cross-sectional structural diagram of the first clutch plate and the second clutch plate of the present invention; Fig.10 This is a schematic diagram of the structure of the wall panel clamping mechanism of the present invention; Fig.11 It is a schematic diagram of the structure of the first groove and the second protrusion of the present invention.

[0018] Numbers in the figure: 1, gantry; 2, lifting column; 201, spiral groove; 3, lifting frame; 301, sliding sleeve; 302, spiral slider; 4, pressure plate; 5, hydraulic cylinder; 6, first sliding sleeve seat; 7, wall panel clamping mechanism; 701, first clamping block; 702, second clamping block; 703, rubber pad; 8, wall panel conveyor belt; 9, first bevel gear; 10, second bevel gear; 11, first drive shaft; 1101, first slide groove; 12, first clutch plate; 1201, first groove; 13, second clutch plate ; 1301, second protrusion; 14, second transmission shaft; 1401, second slide groove; 1402, limit baffle; 15, first gear ring; 16, first spring; 17, third transmission shaft; 18, first transmission gear; 19, second transmission gear; 20, second gear ring; 21, vertical baffle; 22, telescopic groove; 23, positioning pressure block; 24, first inclined sliding block; 25, second sliding sleeve seat; 26, sliding rod; 27, second inclined sliding block; 28, second spring; 29, connecting rod; 30, rotating circle; 31, wall panel to be tested. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] like Figure 1 - Fig.11 As shown, a light wall panel bearing capacity detection device comprises a gantry 1, wherein the gantry 1 is rotatably connected with a lifting column 2 inside, wherein two lifting columns 2 are provided, and the two lifting columns 2 are respectively located at both sides inside the gantry 1, and a lifting frame 3 is transmission-connected on the lifting column 2, and a pressure plate 4 is fixedly connected at the lower part of the lifting frame 3, and a pressure sensor is provided in the pressure plate 4, and a hydraulic cylinder 5 is fixedly connected to the top of the gantry 1, and an output end of the hydraulic cylinder 5 is fixedly connected to the lifting frame 3, and a wall panel clamping mechanism 7 is rotatably connected to the bottom of the gantry 1 through a first sliding sleeve seat 6, and a wall panel conveyor belt 8 is provided on one side of the bottom of the gantry 1, and the wall panel conveyor belt 8 is at the same height as the wall panel clamping mechanism 7, so that the wall panel 31 to be tested can be laid down on the wall panel conveyor belt 8 and automatically transported to the wall panel clamping mechanism 7 for clamping and installation without manual handling.

[0021] Embodiment 1: Sliding sleeves 301 are fixedly connected at both ends of the lifting frame 3, the lifting column 2 passes through the sliding sleeves 301, a spiral groove 201 is opened on the outer side of the lifting column 2, and a spiral slider 302 is processed on the inner wall of the sliding sleeve 301. The spiral slider 302 is slidably connected with the spiral groove 201, so that when the hydraulic cylinder 5 drives the lifting frame 3 to descend, the sliding sleeve 301 and the lifting column 2 will rotate relative to each other under the cooperation of the spiral slider 302 and the spiral groove 201, and the sliding sleeve 301 is fixedly connected to the lifting frame 3, and the lifting column 2 is rotatably connected to the gantry 1, so that the lifting column 2 will rotate.

[0022] The bottom end of the lifting column 2 is fixedly connected with a first bevel gear 9, the first bevel gear 9 is meshed with a second bevel gear 10, the second bevel gear 10 is fixedly connected with a first drive shaft 11 through a keyway, and the first drive shaft 11 is slidably connected with a first clutch plate 12, so that when the lifting column 2 rotates, the first drive shaft 11 is driven to rotate through the second bevel gear 10, and a first slide groove 1101 is provided on the outer side of the first drive shaft 11, and the first clutch plate 12 is slidably connected with the first slide groove 1101, so that the first drive shaft 11 can drive the first clutch plate 12 to rotate together. The first clutch plate 12 is fixedly connected with a first groove 1201, and the second clutch plate 13 is fixedly connected with a second protrusion 1301, the first groove 1201 and the second protrusion 1301 are interlocked, and the first groove 1201 and the second protrusion 1301 are interlocked, so that the first clutch plate 12 can drive the second clutch plate 13 to rotate.

[0023] The second clutch plate 13 is slidably connected to the second transmission shaft 14, the second transmission shaft 14 is fixedly connected to the first gear ring 15, the first gear ring 15 is meshed with the first transmission gear 18, the first transmission gear 18 is meshed with the second transmission gear 19, and the second transmission gear 19 is meshed with the second gear ring 20, so that when the first gear ring 15 rotates, it will drive the second gear ring 20 to rotate in the opposite direction. The first gear ring 15 is fixedly connected to the third transmission shaft 17. The wall panel clamping mechanism 7 includes a first clamping block 701 and a second clamping block 702, the first clamping block 701 and the second clamping block 702 are rotatably connected, one first clamping block 701 is provided, and two second clamping blocks 702 are provided, and the two second clamping blocks 702 are respectively located at both ends of the first clamping block 701, and the first clamping block 701 and the second clamping block 702 are respectively located on both sides of the common rotation axis, and the third transmission shaft 17 passes through the second gear ring 20 and the second clamping block 702, and the third transmission shaft 17 is fixedly connected to the first clamping block 701, and the second gear ring 20 is fixedly connected to the second clamping block 702, so that when the lifting frame 3 descends, it will synchronously drive the first clamping block 701 and the second clamping block 702 to rotate, and clamp the wall panel 31 to be tested. The first clamping block 701 and the second clamping block 702 are connected to each other through a dovetail groove with a rubber pad 703 on the inside, and the rubber pad 703 is processed with an anti-slip groove on the outside to prevent sliding. At the same time, after the wall panel 31 to be tested is clamped, the first clamping block 701 and the second clamping block 702 can no longer rotate relative to each other, and the first gear ring 15 and the second gear ring 20 will be stuck, so that the first bevel gear 9 will directly drive the wall panel clamping mechanism 7 to rotate, thereby standing up the wall panel 31 to be tested.

[0024] Embodiment 2: A vertical stopper 21 is arranged at the rear side of the two second clamping blocks 702 in the wall panel clamping mechanism 7. The vertical stopper 21 is fixedly connected to the gantry 1. A telescopic slot 22 is provided on the vertical stopper 21. The telescopic slot 22 runs through the vertical stopper 21, and a positioning block 23 runs through the telescopic slot 22. One end of the positioning block 23 protrudes from the outside of the telescopic slot 22, and the other end of the positioning block 23 is fixedly connected to a first inclined slider 24. A sliding rod 26 is slidably connected to the back of the vertical stopper 21 through a second sliding sleeve seat 25. One end of the sliding rod 26 is fixedly connected to a second inclined slider 27. The second inclined slider 27 and the first inclined slider 24 slide with each other through an inclined surface. The outer sleeve of the sliding rod 26 is provided with The second spring 28 is located between the second sliding sleeve seat 25 and the second inclined sliding block 27. The other end of the sliding rod 26 is fixedly connected with a rotating circle 30 through a connecting rod 29. The rotating circle 30 is rotatably connected to the first clutch plate 12. At the same time, a first sliding groove 1101 is provided on the outer side of the first driving shaft 11. The first clutch plate 12 is slidably connected to the first sliding groove 1101. When the wall panel 31 to be tested is erected, the second clamping block 702 will be in close contact with the vertical stopper 21, thereby pushing the positioning block 23 and the first inclined sliding block 24, and then pushing the second inclined sliding block 27 to move vertically, thereby driving the first clutch plate 12 along the first sliding groove 1101 through the connecting rod 29 and the rotating circle 30. The first clutch plate 12 and the second clutch plate 13 are slidably connected to each other, and the cross-sections of the first groove 1201 and the second protrusion 1301 are both trapezoidal with one side thick and the other side thin. At the same time, when the positioning pressing block 23 slides in the telescopic groove 22, the maximum sliding distance of the first clutch plate 12 is greater than the length of the shortest side of the first groove 1201 and the second protrusion 1301, and is less than the length of the widest side of the first groove 1201 and the second protrusion 1301. The second transmission shaft 14 is provided with a second sliding groove 1401, and the second clutch plate 13 is slidably connected to the second sliding groove 1401. One end of the second transmission shaft 14 is fixedly connected to a limited stopper 1402, and the outer sleeve of the second transmission shaft 14 is provided with a second A spring 16, the first spring 16 is located between the second clutch plate 13 and the first gear ring 15, so that after the first clutch plate 12 is pushed, when the first clutch plate 12 continues to rotate, the first clutch plate 12 and the second clutch plate 13 will slide, pushing the second clutch plate 13 to the left, so that even if the lifting frame 3 continues to descend, the wall panel clamping mechanism 7 will not continue to clamp, and then once the wall panel 31 to be tested is slightly tilted during the test, the positioning block 23 will pop out again, so that the first clutch plate 12 and the second clutch plate 13 will be engaged again, and the wall panel clamping mechanism 7 will quickly clamp the wall panel 31 to be tested and straighten it again to prevent the wall panel 31 to be tested from tipping over.

[0025] In addition, when the positioning block 23 slides in the telescopic groove 22, the maximum sliding distance of the first clutch plate 12 is greater than the length of the shortest side of the first groove 1201 and the second protrusion 1301, and less than the length of the widest side of the first groove 1201 and the second protrusion 1301. In this way, the movement range of the first clutch plate 12 and the second clutch plate 13 is more precise. When clamping, the lifting frame 3 continues to descend and the wall panel clamping mechanism 7 cannot continue to clamp. However, when clamping, the lifting frame 3 rises, which can quickly drive the wall panel clamping mechanism 7 to reverse and open, so as to facilitate the lowering of the wall panel 31 to be tested.

[0026] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A lightweight wallboard bearing capacity detection device, characterized in that: It comprises a gantry, wherein a lifting column is rotatably connected inside the gantry, wherein two lifting columns are provided, and the two lifting columns are respectively located at two sides inside the gantry, wherein a lifting frame is transmission-connected on the lifting column, a pressure plate is fixedly connected at the lower part of the lifting frame, and a pressure sensor is provided inside the pressure plate, wherein a hydraulic cylinder is fixedly connected at the top of the gantry, and an output end of the hydraulic cylinder is fixedly connected to the lifting frame, wherein a wall panel clamping mechanism is rotatably connected to the bottom of the gantry via a first sliding sleeve seat, and a wall panel conveyor belt is provided at one side of the bottom of the gantry, and the wall panel conveyor belt is at the same height as the wall panel clamping mechanism; The wall panel clamping mechanism comprises a first clamping block and a second clamping block, wherein the first clamping block and the second clamping block are rotatably connected; The bottom end of the lifting column is fixedly connected with a first bevel gear, the first bevel gear is meshed with a second bevel gear, the second bevel gear is fixedly connected with a first driving shaft through a keyway, the first driving shaft is slidably connected with a first clutch plate, the first clutch plate is transmission-connected with the second clutch plate, the second clutch plate is slidably connected with a second transmission shaft, the second transmission shaft is fixedly connected with a first gear ring, the first gear ring is transmission-connected with the second gear ring through a gear, the first gear ring is fixedly connected with a third transmission shaft, the third transmission shaft passes through the second gear ring and the second clamping block, and the third transmission shaft is fixedly connected to the first clamping block, and the second gear ring is fixedly connected to the second clamping block.

2. The light wall panel bearing capacity detection device according to claim 1, characterized in that: The two ends of the lifting frame are fixedly connected with sliding sleeves, the lifting column passes through the sliding sleeves, a spiral groove is opened on the outer side of the lifting column, a spiral slider is processed on the inner wall of the sliding sleeve, and the spiral slider is slidably connected with the spiral groove.

3. The light wall panel bearing capacity detection device according to claim 1, characterized in that: One first clamping block is provided, and two second clamping blocks are provided. The two second clamping blocks are respectively located at two ends of the first clamping block, and the first clamping block and the second clamping block are respectively located at two sides of a common rotating shaft.

4. The light wall panel bearing capacity detection device according to claim 3, characterized in that: The first clamping block and the second clamping block are connected with rubber pads on their inner sides through dovetail grooves, and anti-slip grooves are processed on the outer sides of the rubber pads.

5. The light wall panel bearing capacity detection device according to claim 1, characterized in that: A first sliding groove is provided on the outer side of the first driving shaft, and the first clutch plate is slidably connected to the first sliding groove.

6. The light wall panel bearing capacity detection device according to claim 1, characterized in that: The second transmission shaft is provided with a second sliding groove, the second clutch plate is slidably connected to the second sliding groove, one end of the second transmission shaft is fixedly connected to a limiting stopper, the second transmission shaft outer sleeve is provided with a first spring, and the first spring is located between the second clutch plate and the first gear ring.

7. The light wall panel bearing capacity detection device according to claim 1, characterized in that: The first clutch plate is fixedly connected with a first groove, the second clutch plate is fixedly connected with a second protrusion, the first groove and the second protrusion are embedded with each other, and the cross-sections of the first groove and the second protrusion are both trapezoidal with one side thicker and the other side thinner.

8. The light wall panel bearing capacity detection device according to claim 3, characterized in that: The two second clamping blocks in the wall panel clamping mechanism are provided with a vertical block on the rear side, and the vertical block is fixedly connected to the gantry, and a telescopic slot is opened on the vertical block, and the telescopic slot passes through the vertical block, and a positioning pressure block passes through the telescopic slot, one end of the positioning pressure block protrudes out of the outside of the telescopic slot, and the other end of the positioning pressure block is fixedly connected to the first inclined sliding block, and the back of the vertical block is slidably connected to a sliding rod through a second sliding sleeve seat, and one end of the sliding rod is fixedly connected to the second inclined sliding block, and the second inclined sliding block and the first inclined sliding block slide with each other through an inclined surface, and a second spring is provided on the outer sleeve of the sliding rod, and the second spring is located between the second sliding sleeve seat and the second inclined sliding block, and the other end of the sliding rod is fixedly connected to a rotating circle through a connecting rod, and the rotating circle is rotatably connected to the first clutch plate.

9. The light wallboard bearing capacity detection device according to claim 8, characterized in that: A first transmission gear and a second transmission gear are arranged between the first gear ring and the second gear ring, and the first gear ring and the first transmission gear are meshed with each other, the first transmission gear and the second transmission gear are meshed with each other, and the second transmission gear and the second gear ring are meshed with each other.

10. The light wallboard bearing capacity detection device according to claim 9, characterized in that: When the positioning pressing block slides in the telescopic groove, the maximum sliding distance of the first clutch plate is greater than the length of the shortest side of the first groove and the second protrusion, and less than the length of the widest side of the first groove and the second protrusion.

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