A putty flexibility detection device

Abstract

The utility model discloses a putty flexibility detection device, and the putty flexibility detection device is provided with a plurality of groups of support plates and shaft bodies, and the support plates and the shaft bodies are connected through folding assemblies, and the folding assemblies can drive the support plates to move along the radial direction of the shaft bodies, and the opening end of the U-shaped frame is rotatably arranged on the shaft body, and a roller is movably arranged in the U-shaped frame through a first displacement assembly, and the roller can move along the length direction of the U-shaped frame, and the clamping block is slidably arranged on the top of the pedestal and connected with the pedestal through a second displacement assembly. Through the above arrangement, the bending radius of the test plate can be adjusted, and the application scenarios of the device are widened.

Description

Technical Field

[0001] This utility model belongs to the field of engineering material testing technology, specifically relating to a putty flexibility testing device. Background Technology

[0002] Putty is a viscous material made of gypsum, water, and cementitious materials. It is mainly used for plastering, leveling, and repairing walls, filling in minor defects and making the wall surface smooth and even. To evaluate the crack resistance and durability of putty when the substrate deforms, it is necessary to test the putty's flexibility.

[0003] According to the relevant testing standards, during the experiment, putty needs to be applied to the test board, and then the test board is fixed to one end of the putty flexibility tester. The test board is rotated and bent at a steady speed within 2 to 3 seconds, so that the test board is pressed tightly against the surface of the instrument shaft. The putty film on the surface of the test board in the state of being pressed tightly against the surface of the instrument shaft is observed to see if there are mesh patterns, cracks and peeling phenomena.

[0004] Traditional putty flexibility testers require two shafts of different sizes to be fixedly installed on the top, resulting in a large footprint and making them difficult to store. Utility Model Content

[0005] The present invention aims to provide a putty flexibility testing device to solve the problem of the large footprint of traditional putty flexibility testers.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A putty flexibility testing device includes a base, support plates, a U-shaped frame, and a clamping block. A shaft is fixedly mounted on the top of the base. Multiple sets of support plates are spaced apart on the outer periphery of the shaft. Each support plate is connected to the shaft via a folding assembly, which can drive the support plate to move radially along the shaft. The open end of the U-shaped frame is rotatably sleeved on the shaft. A roller is movably mounted inside the U-shaped frame via a first displacement assembly, and the roller can move along the length of the U-shaped frame. The clamping block is slidably mounted on the top of the base and connected to the base via a second displacement assembly.

[0007] The principle and effects of this technical solution: In the initial state, the clamping block is away from the shaft, and the inner sidewalls of each of the support plates are pressed against the shaft. When it is necessary to bend the test plate with different radii, firstly, the folding assembly is used to move each support plate away from the shaft and limit its movement; then, one end of the test plate is placed between the clamping block and the adjacent support plate, and the second displacement assembly is used to push the clamping block to move closer to the shaft until the clamping block and the adjacent support plate clamp the test plate; then, the first displacement assembly is used to move the roller so that the outer sidewall of the roller contacts the film surface of the test plate, and then the U-shaped frame is rotated to bend the test plate and press it against each support plate.

[0008] With the above setup, the bending radius of the test plate can be adjusted by moving the support plate using the folding component, which broadens the applicable scenarios of this device. Compared with traditional flexibility testers that require multiple shafts with different radii to be set on the top, this device also saves floor space and is convenient for storage and transportation.

[0009] In this utility model, a sliding groove is provided inside the shaft along its axial direction, and through slots are spaced apart on the inner sidewall of the sliding groove in the circumferential direction. The folding assembly includes a bidirectional screw rod that is rotatably inserted into the sliding groove. The positive and negative threaded sections of the bidirectional screw rod are respectively fitted with sliders. The two ends of the inner sidewall of the support plate are respectively rotatably connected to a first connecting rod that is slidably inserted into the corresponding through slot. The end of the first connecting rod is rotatably connected to the corresponding slider. The middle part of the first connecting rod is also rotatably connected to a second connecting rod. The end of the second connecting rod is rotatably connected to the inner end wall of the through slot.

[0010] The principle and effects of this technical solution: The support plate needs to be moved outward along the radial direction of the shaft. The bidirectional screw is rotated. Because the slide groove restricts the rotation of the slider, the two sliders move away from each other as the bidirectional screw rotates. As the slider approaches the adjacent end wall of the through groove, it pushes the first connecting rod to rotate outward, thereby pushing the support plate to move outward.

[0011] The above setup achieves the goal of using the folding assembly to move the support plate radially along the shaft.

[0012] In this utility model, the first displacement component includes a first threaded rod threaded through the straight section of the U-shaped frame, and a U-shaped mounting bracket rotatably connected to one end of the first threaded rod extending into the U-shaped frame. The two outer side walls of the mounting bracket slide against the inner side wall of the U-shaped frame, and a fixed shaft is provided at the open end of the mounting bracket. The roller is rotatably sleeved on the fixed shaft.

[0013] In this utility model, the U-shaped frame has symmetrically provided limit grooves on both sides, and the two outer side walls of the mounting frame are fixedly provided with limit rods that are slidably inserted into the limit grooves.

[0014] In this utility model, a handle is fixedly provided at the end of the first threaded rod away from the mounting bracket.

[0015] The principle and effects of this technical solution: When the position of the roller needs to be adjusted, first hold the handle and rotate the first threaded rod. The mounting frame will then move along its axial direction. Because the two outer walls of the mounting frame slide against the inner wall of the U-shaped frame, the mounting frame can be prevented from rotating. Keep the axis of the fixed shaft parallel to the axis of the shaft body. When the mounting frame is moved until the roller contacts the test plate, rotate the U-shaped frame so that the roller pushes the test plate to bend until it fits against the support plate.

[0016] With the above setup, the roller can be moved to a position in contact with the test plate by rotating the first threaded rod, and the roller can be moved along the length of the U-shaped frame by inserting the limiting rod into the limiting groove.

[0017] In this utility model, the top of the platform is provided with a first groove, the second displacement component includes a second threaded rod that is rotatably inserted into the first groove, and the bottom of the clamping block is fixedly provided with a first protrusion that is fitted onto the second threaded rod.

[0018] In this utility model, the top of the pedestal has a second groove on both sides of the first groove, the second displacement component also includes a guide rod fixedly disposed in the second groove, and the bottom of the clamping block is fixedly disposed with a second protrusion that is slidably sleeved on the corresponding guide rod.

[0019] With the above configuration, the clamping block can be moved axially by rotating the second threaded rod, ensuring that the clamping block and the corresponding support plate can clamp the test plate, thereby improving the stability of the device during use. Attached Figure Description

[0020] Figure 1 This is a monoaxial view of the utility model in use. Figure 2 This is a biaxial projection of the utility model in use. Figure 3 This is a partial isometric sectional view of the present invention; Figure 4 Disassembly of the components of this utility model Figure 1 ; Figure 5 Disassembly of the components of this utility model Figure 2 . Detailed Implementation

[0021] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments: The reference numerals in the accompanying drawings include: 10, base; 11, shaft; 12, slide groove; 13, through groove; 14, first groove; 15, second groove; 20, support plate; 30, U-shaped frame; 31, roller; 32, limiting groove; 40, clamping block; 41, first protrusion; 42, second protrusion; 51, bidirectional screw; 52, slider; 53, first connecting rod; 54, second connecting rod; 61, first threaded rod; 62, mounting bracket; 63, fixed shaft; 64, limiting rod; 65, handle; 71, second threaded rod; 72, guide rod.

[0022] Example: As attached Figure 1-5 As shown, this utility model discloses a putty flexibility testing device, comprising a base 10, a support plate 20, a U-shaped frame 30, and a clamping block 40. A shaft 11 is fixedly installed on the top of the base 10. Multiple sets of support plates 20 are spaced apart on the outer periphery of the shaft 11. Each support plate 20 is connected to the shaft 11 through a folding assembly, which can drive the support plate 20 to move radially along the shaft 11. The open end of the U-shaped frame 30 is rotatably sleeved on the shaft 11. A roller 31 is movably installed inside the U-shaped frame 30 through a first displacement assembly. The roller 31 can move along the length direction of the U-shaped frame 30. The clamping block 40 is slidably disposed on the top of the base 10 and connected to the base 10 through a second displacement assembly.

[0023] In this embodiment, a sliding groove 12 is provided inside the shaft 11 along its axial direction. The inner sidewall of the sliding groove 12 is provided with through grooves 13 spaced apart circumferentially. The folding assembly includes a bidirectional screw 51 rotatably inserted into the sliding groove 12. The positive and negative threaded sections of the bidirectional screw 51 are respectively fitted with sliders 52. The sliders 52 slide against the inner sidewall of the sliding groove 12. The two ends of the inner sidewall of the support plate 20 are respectively rotatably connected to a first connecting rod 53 rotatably inserted into the corresponding through groove 13. The end of the first connecting rod 53 is rotatably connected to the corresponding slider 52. The middle part of the first connecting rod 53 is also rotatably connected to a second connecting rod 54. The end of the second connecting rod 54 is rotatably connected to the inner endwall of the through groove 13. The distance between the two rotatable connection points of the second connecting rod 54 is half the distance between the two rotatable connection points of the first connecting rod 53.

[0024] In this embodiment, the first displacement component includes a first threaded rod 61 threaded through the straight section of the U-shaped frame 30. One end of the first threaded rod 61 extending into the U-shaped frame 30 is rotatably connected to a U-shaped mounting bracket 62. The two outer sidewalls of the mounting bracket 62 slide against the inner sidewall of the U-shaped frame 30. A fixed shaft 63 is provided at the open end of the mounting bracket 62. The axis of the fixed shaft 63 is parallel to the axis of the shaft body 11. The roller 31 is rotatably sleeved on the fixed shaft 63.

[0025] In this embodiment, the U-shaped frame 30 has symmetrically provided limiting grooves 32 on both sides, and the two outer side walls of the mounting frame 62 are fixedly provided with limiting rods 64 that are slidably inserted into the limiting grooves 32. The length direction of the limiting grooves 32 is parallel to the length direction of the U-shaped frame 30.

[0026] In this embodiment, a handle 65 is fixedly provided at the end of the first threaded rod 61 away from the mounting bracket 62.

[0027] In this embodiment, the top of the pedestal 10 is provided with a first groove 14, the second displacement component includes a second threaded rod 71 that is rotatably inserted into the first groove 14, and the bottom of the clamping block 40 is fixedly provided with a first protrusion 41 that is fitted and sleeved on the second threaded rod 71.

[0028] In this embodiment, the top of the pedestal 10 has a second groove 15 on both sides of the first groove 14, and the second displacement component also includes a guide rod 72 fixedly disposed in the second groove 15. The bottom of the clamping block 40 is fixedly disposed with a second protrusion 42 that is slidably sleeved on the corresponding guide rod 72.

[0029] The specific implementation process is as follows: In the initial state, the clamping block 40 is away from the shaft 11, and the inner sidewalls of each of the support plates 20 are close to the shaft 11. When it is necessary to bend the test plate with different radii, firstly, the folding assembly is used to move each support plate 20 away from the shaft 11 and limit it; then, one end of the test plate is placed between the clamping block 40 and the adjacent support plate 20, and the second displacement assembly is used to push the clamping block 40 to move closer to the shaft 11 until the clamping block 40 and the adjacent support plate 20 clamp the test plate; then, the first displacement assembly is used to move the roller 31 so that the outer sidewall of the roller 31 contacts the film surface of the test plate, and then the U-shaped frame 30 is rotated to bend the test plate and make it close to each support plate 20.

[0030] When the support plate 20 needs to be moved radially outward along the shaft 11, the bidirectional screw 51 is rotated. Because the slide groove 12 restricts the rotation of the slider 52, the two sliders 52 move away from each other as the bidirectional screw 51 rotates. As the slider 52 approaches the adjacent end wall of the through groove 13, it pushes the first connecting rod 53 to rotate outward, thereby pushing the support plate 20 to move outward.

[0031] When the position of roller 31 needs to be adjusted, first rotate the first threaded rod 61, and the mounting frame 62 moves along its axial direction. Since the two outer side walls of the mounting frame 62 slide against the inner side wall of the U-shaped frame 30, the mounting frame 62 can be prevented from rotating. Keep the axis of the fixed shaft 63 parallel to the axis of the shaft body 11. When the mounting frame 62 is moved until the roller 31 contacts the test plate, hold the handle 65 and rotate the U-shaped frame 30 along the axis of the shaft body 11 so that the roller 31 pushes the test plate to bend until it fits against the support plate 20.

[0032] The parts of the device not covered herein are the same as or can be implemented using existing technologies.

[0033] The above descriptions are merely embodiments of this utility model. Commonly known technical solutions or characteristics are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solution of this utility model. These modifications and improvements should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A device for testing the flexibility of putty, characterized in that, include: A platform, the top of which is fixedly provided with a shaft; Support plates, wherein multiple sets of support plates are spaced apart on the outer periphery of the shaft body, and each support plate is connected to the shaft body through a folding assembly, the folding assembly being able to drive the support plate to move radially along the shaft body; A U-shaped frame, the open end of which is rotatably sleeved on a shaft, and a roller is movably installed inside the U-shaped frame via a first displacement component, the roller being able to move along the length of the U-shaped frame; The clamping block is slidably disposed on the top of the platform and connected to the platform via a second displacement component.

2. The putty flexibility testing device as described in claim 1, characterized in that: The shaft body has a sliding groove arranged along its axial direction inside. The inner sidewall of the sliding groove is provided with through slots spaced apart circumferentially. The folding assembly includes a bidirectional screw that is rotatably inserted into the sliding groove. The positive and negative threaded sections of the bidirectional screw are respectively fitted with sliders. The two ends of the inner sidewall of the support plate are respectively rotatably connected to a first connecting rod that is slidably inserted into the corresponding through slot. The end of the first connecting rod is rotatably connected to the corresponding slider. The middle part of the first connecting rod is also rotatably connected to a second connecting rod. The end of the second connecting rod is rotatably connected to the inner end wall of the through slot.

3. The putty flexibility testing device as described in claim 1, characterized in that: The first displacement component includes a first threaded rod threaded through the straight section of the U-shaped frame. One end of the first threaded rod extends into the U-shaped frame and is rotatably connected to a U-shaped mounting bracket. The two outer side walls of the mounting bracket slide against the inner side wall of the U-shaped frame. A fixed shaft is provided at the open end of the mounting bracket, and the roller is rotatably sleeved on the fixed shaft.

4. The putty flexibility testing device as described in claim 3, characterized in that: The U-shaped frame has symmetrical limit grooves on both sides, and the two outer side walls of the mounting frame are fixedly provided with limit rods that are slidably inserted into the limit grooves.

5. The putty flexibility testing device as described in claim 4, characterized in that: A handle is fixedly installed at the end of the first threaded rod away from the mounting bracket.

6. The putty flexibility testing device as described in claim 1, characterized in that: The top of the platform is provided with a first groove, the second displacement component includes a second threaded rod that is rotatably inserted into the first groove, and the bottom of the clamping block is fixedly provided with a first protrusion that fits and is sleeved on the second threaded rod.

7. The putty flexibility testing device as described in claim 6, characterized in that: The top of the pedestal has a second groove on both sides of the first groove. The second displacement component also includes a guide rod fixedly disposed in the second groove. The bottom of the clamping block is fixedly provided with a second protrusion that is slidably sleeved on the corresponding guide rod.

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