Supporting device and test equipment

Abstract

The utility model provides a supporting device and a testing device, which are applied to a low-temperature test of a waterproof coiled material, and comprise a linear execution mechanism which is provided with a fixed part and a movable part, and the movable part is telescopically arranged on the fixed part and is configured to move between a first position partially retracting into the fixed part and a second position partially extending out of the fixed part, in the state of the second position, the part, exposed outside the fixed part, of the movable part is more than in the state of the first position; the two supports are symmetrically arranged on the fixed part, the supports and the linear execution mechanism are both provided with supporting parts, and the supporting parts are configured to be orthogonal to the movable part or the supports; when the moving part is in the first position, the first supporting part arranged on the moving part is located on one side of a connecting line of the two second supporting parts arranged on the support, and when the moving part is in the second position, the first supporting part extends to the other side of the connecting line of the two second supporting parts along with the second supporting parts. And the middle part of the sample block is pressed to bend the sample block.

Description

Technical Field

[0001] At least one embodiment of this utility model relates to a testing device for waterproof materials, and in particular to a support device and testing equipment for the low-temperature performance of waterproof materials. Background Technology

[0002] Waterproofing materials are widely used in the construction industry to meet the mold and moisture protection requirements of building structures. Before laying each batch of waterproofing membrane, samples must be extracted from the corresponding batch to test the low-temperature performance of the waterproofing membrane.

[0003] When conducting low-temperature performance tests on waterproof membranes, strip-shaped samples are immersed in a cold liquid for a predetermined time before being bent to observe whether cracks or breakage occur at the bending point. In this test, a suitable support device is required to support and bend the sample immersed in the cold liquid. However, current laboratory support devices are too large and complex, making them unsuitable for practical application in construction scenarios. Therefore, in construction settings, workers often use simpler mechanisms instead. However, when bending the sample using these simple mechanisms, the inability to quantitatively control the bending speed and degree makes the test susceptible to human error, hindering the acquisition of effective test results.

[0004] Therefore, how to provide a support device that is easy to carry and whose bending speed can be controlled has become an urgent technical problem to be solved. Utility Model Content

[0005] To address at least one of the aforementioned and other technical problems in the prior art, this utility model provides a support device and testing equipment for testing the low-temperature performance of waterproof materials.

[0006] An embodiment of this utility model provides a support device for low-temperature testing of waterproof membranes, comprising: a linear actuator having a fixed part and a movable part, the movable part being telescopically disposed on the fixed part and configured to move between a first position partially retracted into the fixed part and a second position partially extended out of the fixed part, wherein in the second position, the portion of the movable part exposed outside the fixed part is greater than in the first position; at least two supports symmetrically disposed on the fixed part, each of the supports and the linear actuator having a support portion, the support portion being configured orthogonal to the movable part or the supports; in the first position, the first support portion disposed on the movable part is located on one side of the line connecting the two second support portions disposed on the supports, so as to clamp the sample to be tested between the first support portion and the second support portion; in the second position, the first support portion extends along with the second support portion to the other side of the line connecting the two second support portions, so as to press against the middle of the sample and bend the sample.

[0007] According to an embodiment of the present invention, the linear actuator further includes a driving unit disposed on the fixed unit and configured to drive the moving unit to move between the first position and the second position.

[0008] According to an embodiment of the present invention, the linear actuator includes an electric push rod; wherein, the sleeve of the electric push rod serves as the fixed part, and the inner tube of the electric push rod serves as the moving part.

[0009] According to an embodiment of the present invention, the support portion is configured as a rod-shaped structure.

[0010] According to an embodiment of the present invention, the two aforementioned brackets are oscillatingly disposed on the aforementioned fixed portion.

[0011] According to an embodiment of the present invention, the bracket has a mounting end and a free end. The mounting end is rotatably disposed on the fixed part, and the free end is provided with the support part. The two brackets are configured to swing between a third position in which the two free ends are close together and a fourth position in which they are far apart.

[0012] According to an embodiment of the present invention, the two supports are configured to be adjusted to the third position in response to the moving part being in the second position, so as to further bend the sample block.

[0013] According to an embodiment of the present invention, the support device further includes two connecting members, which are symmetrically arranged on both sides of the fixing part; the mounting end of the bracket is rotatably disposed on the connecting members.

[0014] According to an embodiment of the present invention, the support device further includes a locking member, which is detachably disposed between the connecting member and the bracket, and is suitable for holding the bracket in the third position.

[0015] An embodiment of this utility model also provides a testing device, including: a support device; and a liquid tank storing a coolant; wherein the support device is configured to support a sample to be tested and to immerse the sample in the coolant in the liquid tank.

[0016] According to the support device and testing equipment provided by this utility model, the sample to be tested is supported between the second support portions of two brackets and abutted against the first support portion of the moving part of the linear actuator, thus being assembled onto the support device. In this way, during low-temperature performance testing, the sample can be immersed in a cold liquid through the support device. After the sample has been immersed in the cold liquid for a preset time and at a preset temperature, the moving part extends to a second position to press against the middle of the sample, causing it to bend. During this process, the bending speed of the sample can be quantitatively controlled by controlling the linear speed of the moving part extending from the first position to the second position; and the relative positions of the first and second support portions also limit the degree of bending of the sample, thereby making the test process standardized and controllable. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a support device according to an illustrative embodiment of the present invention;

[0018] Figure 2 yes Figure 1 A schematic diagram of the support device in the illustrative embodiment, viewed from the side.

[0019] Figure 3 yes Figure 1 The diagram shows the usage state of the support block of the support device in the schematic embodiment.

[0020] Figure 4 yes Figure 3 The diagram illustrates the usage state of a bending sample block of the support device according to a schematic embodiment.

[0021] Figure 5 yes Figure 1 A perspective view of the linear actuator of the support device in the schematic embodiment shown;

[0022] Figure 6 This is a test device according to an illustrative embodiment of the present invention.

[0023] In the accompanying drawings, the meanings of the reference numerals are as follows:

[0024] 1. Electric linear actuator;

[0025] 11. Sleeve;

[0026] 12. Electric motor;

[0027] 13. Base;

[0028] 14. Inner tube;

[0029] 15. Transmission components;

[0030] 2. Connecting parts;

[0031] 3. Nuts;

[0032] 4. Bracket;

[0033] 5. Support section;

[0034] 51. First support part;

[0035] 52. Second support section;

[0036] 6. Sample block;

[0037] 7. Liquid tank;

[0038] 8. Cooling liquid. Detailed Implementation

[0039] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0040] The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of the invention. The terms “comprising,” “including,” etc., as used herein indicate the presence of the stated features, steps, operations, and / or components, but do not exclude the presence or addition of one or more other features, steps, operations, or components.

[0041] All terms used herein, including technical and scientific terms, have the meanings commonly understood by those skilled in the art, unless otherwise defined. It should be noted that the terms used herein are to be interpreted in a manner consistent with the context of this specification, and not in an idealized or overly rigid way.

[0042] When using expressions such as "at least one of A, B, and C," the meaning should generally be interpreted according to the understanding of someone skilled in the art. For example, "a system having at least one of A, B, and C" should include, but is not limited to, systems having A alone, having B alone, having C alone, having A and B, having A and C, having B and C, and / or having A, B, and C. Similarly, when using expressions such as "at least one of A, B, or C," the meaning should generally be interpreted according to the understanding of someone skilled in the art. For example, "a system having at least one of A, B, or C" should include, but is not limited to, systems having A alone, having B alone, having C alone, having A and B, having A and C, having B and C, and / or having A, B, and C.

[0043] The low-temperature performance (such as low-temperature flexibility) of waterproof membranes is an important indicator for measuring the waterproof performance of waterproof membranes under low-temperature conditions.

[0044] Currently, in experimental environments (such as in a laboratory), the low-temperature performance test of waterproof membranes involves assembling a sample (e.g., a strip sample 150mm in length) cut from the waterproof membrane onto a hydraulic support mechanism. The support mechanism then presses the sample below the surface of a liquid tank containing a cryogenic solution (e.g., a low-temperature solution with a temperature of -20℃, -25℃, or -30℃). After the sample has reached a preset time (e.g., 1 hour), it is considered to have reached the same low-temperature conditions as the cryogenic solution. The support mechanism then drives the sample to a preset bending speed (e.g., within 3 seconds) and bending degree (e.g., forming an approximate 180° bend along the center). The sample can then be removed and observed to see if it has broken or cracked at the bending point.

[0045] However, the aforementioned hydraulic support equipment is bulky and complex (requiring external mains power and external fluid source), making it difficult to apply in construction scenarios (such as outdoor scenarios). Therefore, currently, construction workers often use a simple mechanism with a bending rod to immerse the sample in cold liquid and bend it. However, this method cannot precisely control the bending speed and degree of bending, making the test process highly susceptible to human error and resulting in inaccurate test results.

[0046] Therefore, how to provide a support device that is easy to carry and whose bending speed can be controlled has become an urgent technical problem to be solved.

[0047] Figure 1 This is a schematic diagram of the structure of a support device according to an illustrative embodiment of the present invention. Figure 2 yes Figure 1 A schematic diagram of the support device in the illustrative embodiment shown from a side view. Figure 3 yes Figure 1 The diagram shows the usage state of the support block of the support device in the schematic embodiment. Figure 4 yes Figure 3 The diagram shows the usage state of the bending sample block of the support device in the schematic embodiment.

[0048] This utility model provides a support device for low-temperature testing of waterproof membranes, such as... Figure 1 and Figure 2 As shown, the support device includes a linear actuator and at least two supports. The linear actuator has a fixed part and a movable part, the movable part being telescopically disposed on the fixed part. The movable part is configured to move between a first position where it is partially retracted into the fixed part and a second position where it is partially extended out of the fixed part. In the second position, more of the movable part is exposed outside the fixed part than in the first position. Two supports 4 are symmetrically disposed on the fixed part. Both the supports 4 and the linear actuator are provided with support parts 5, which are configured to be orthogonal to the movable part or the supports 4.

[0049] Reference Figure 3 As shown, when the movable part is in the first position, the first support part 51 provided on the movable part is located on the line connecting the two second support parts 52 provided on the bracket 4 (e.g., Figure 3 One side of the dashed line shown (as shown) Figure 3 (as shown by the dotted line below), so that the sample block 6 to be tested is clamped between the first support part 51 and the second support part 52.

[0050] Reference Figure 4 As shown, when the movable part is in the second position, the first support part 51 extends along with the second support part 52 to the line connecting the two second support parts 52 (e.g., Figure 4 The other side of the dotted line shown (as shown) Figure 4 (The upper side of the dotted line shown) is used to press against the middle of sample block 6 and bend sample block 6.

[0051] In this implementation method, refer to Figure 3 As shown, with the movable part in the first position, the first support part 51 is located below the second support part 52, and as... Figure 3 A gap is formed between the first support portion 51 and the second support portion 52 in the vertical direction, as shown. This gap is adapted to the thickness of the sample block 6 to be tested, so that the two surfaces of the sample block 6 (i.e., as shown) can be used for testing. Figure 3 The upper and lower surfaces of the sample block 6 are misaligned to confine the sample block 6 between the first support portion 51 and the second support portion 52. In this state, the support device can immerse the sample block 6 below the surface of the cold liquid.

[0052] Once sample 6 has reached the preset time (e.g., 1 hour), it can be considered to have reached the same low-temperature conditions as the coolant (sample 6 will have reduced flexibility at low temperatures). Further, refer to... Figure 4 As shown, the movable part can be controlled to move from the first position to the second position (i.e., the movable part extends upward from the fixed part). During this process, the first support part 51 presses upward against the middle of the sample block 6, causing the sample block 6 to bend along the middle. In this way, during the process of the movable part extending from the fixed part, the bending speed of the sample block 6 can be controlled simply by controlling the linear speed of the movable part. Furthermore, since the distance between the two second support parts 52 and the distance the movable part extends relative to the fixed part are controllable, the degree of bending of the sample block 6 is also limited. This effectively reduces the error of human operation, thereby making the test process standardized and controllable.

[0053] Figure 5 yes Figure 1 A perspective view of the linear actuator of the support device in the schematic embodiment shown.

[0054] According to embodiments of the present invention, such as Figure 5 As shown, the linear actuator also includes a drive unit. The drive unit is disposed on the fixed unit and configured to drive the moving unit to move between a first position and a second position.

[0055] According to embodiments of the present invention, such as Figure 5 As shown, the linear actuator includes, but is not limited to, the use of an electric actuator 1. The sleeve 11 of the electric actuator 1 serves as a fixed part, and the inner tube 14 of the electric actuator 1 serves as a moving part.

[0056] In an illustrative implementation, such as Figure 5 As shown, the electric actuator 1 includes a sleeve 11 (with a lead screw inside the sleeve 11, not shown), a motor 12, a base 13, an inner tube 14 (the inner tube 14 can be a single stage or have multiple stages nested together), and a transmission assembly 15. Specifically, the sleeve 11 and the motor 12 are spaced apart on the base 13, and the transmission assembly 15 is housed within the base 13. Furthermore, the output shaft of the motor 12 is parallel to the axial direction of the inner tube 14 and is connected to one axial end of the lead screw inside the sleeve via the transmission assembly 15 (such as a belt and pulley, or a gear set, etc.).

[0057] In one illustrative embodiment, one axial end of the sleeve 11 (e.g.) Figure 5 The upper end shown has a cap, the middle of which is provided with a through hole for the axial end of the inner tube 14 (such as...). Figure 5The upper end of the inner tube 14 (shown as shown) protrudes through. Further, a threaded sleeve (not shown) is coaxially fitted to the other axial end of the inner tube 14 located within the sleeve 11 (the lower end within the sleeve 11, not shown). This threaded sleeve is rotatably connected to the end of the inner tube 14 (i.e., the threaded sleeve can rotate relative to the inner tube 14), and the internal thread of the threaded sleeve engages with the external thread of the lead screw. Even further, one of the inner wall of the sleeve 11 and the inner tube 14 is provided with a guide groove extending along the axial direction of the inner tube 14, and the other is provided with a guide block that slides with the guide groove, so that the inner tube 14 can only move axially along the sleeve 11 and cannot rotate relative to the sleeve 11. It should be understood that the embodiments of this utility model are not limited thereto.

[0058] The above description of the electric actuator 1 omits components such as bearings, screws, and seals. If necessary, a bearing can be installed at the connection between the lead screw and the sleeve 11; and / or, a sealing ring can be installed at the joint between the inner tube 14 and the sleeve 11; and / or, a screw connection can be used at the connection between the inner tube and the lead sleeve. It should be noted that the electric actuator 1 is a mature linear actuator, and these components are not considered key points of protection in this utility model and will not be elaborated upon further.

[0059] In this implementation, when the motor 12 outputs torque to the lead screw via the transmission assembly 15, the lead screw rotates relative to the fixed axis of the sleeve 11, thereby driving the sleeve. At this time, since the inner tube 14 and the sleeve 11 are engaged by the guide groove and the guide block, the circumferential rotation of the inner tube 14 is restricted. Therefore, under the action of the sleeve, the inner tube 14 can only move axially along the lead screw with the sleeve, thereby extending to the second position or retracting to the first position.

[0060] When using an electric actuator as a linear actuator, the support device does not require external mains power (or liquid source) in the construction environment; it can be driven solely by a configured DC power supply (such as a built-in battery or an external power bank), greatly improving operational convenience. Furthermore, since the extension speed (i.e., retraction speed) and extension distance (i.e., the distance between the first and second positions) of the inner tube 14 of the electric actuator can be accurately controlled by the motor 12, the precision of controlling the bending speed and degree of bending during the test is also improved.

[0061] According to embodiments of the present invention, such as Figures 2 to 4 As shown, the support portion 5 is configured as a rod-shaped structure.

[0062] In one illustrative embodiment, such as Figure 2 As shown, both the first support portion 51 and the second support portion 52 are configured as rod-shaped structures. Specifically, the first support portion 51 and the extending direction of the movable portion (e.g., ...) Figure 2 The second support 52 is perpendicular to the extension direction of the bracket 4 (i.e., extending horizontally), while the extension direction of the bracket 4 is perpendicular to the vertical direction shown (i.e., extending horizontally). Figure 2 The first support portion 51 and the second support portion 52 are orthogonal (i.e., extending horizontally) to the vertical direction shown, meaning they are parallel. Thus, the sample block 6 can be positioned along... Figure 2 It is clamped between the first support portion 51 and the second support portion 52 in the vertical direction shown.

[0063] According to embodiments of the present invention, such as Figures 1 to 4 As shown, the two brackets 4 are swayably mounted on the fixed part.

[0064] According to embodiments of the present invention, such as Figures 1 to 4 As shown, the support device also includes two connectors 2, which are symmetrically arranged on both sides of the fixed part. The mounting end of the bracket 4 is rotatably mounted on the connectors 2.

[0065] According to embodiments of the present invention, such as Figures 1 to 4 As shown, the bracket 4 has a mounting end and a free end. The mounting end is rotatably mounted on the fixed part, and the free end is provided with a support part 5. The two brackets 4 are configured to swing between a third position in which the two free ends are brought close together and a fourth position in which they are moved away from each other.

[0066] According to embodiments of the present invention, such as Figures 1 to 4 As shown, the two supports 4 are configured to be adjusted to the third position in response to the moving part being in the second position, so as to further bend the sample block 6.

[0067] According to embodiments of the present invention, such as Figures 1 to 4 As shown, the support device also includes a locking element, which is detachably disposed between the connector 2 and the bracket 4, and is suitable for holding the bracket 4 in a third position.

[0068] In one illustrative embodiment, such as Figures 1 to 4 As shown, the support device includes two sector-shaped connectors 2. Specifically, these two sector-shaped connectors 2 are symmetrically arranged on both radial sides of the sleeve 11 (e.g., Figure 1 (As shown on the left and right sides). Furthermore, the two connectors 2 form cavities inside them, and the mounting ends of the bracket 4 (as shown) Figure 4 The lower end shown (i.e., the dotted line portion) is rotatably mounted on the connector 2 via a rotating shaft, and the connector 2 and the bracket 4 are aligned radially along the sleeve 11 (e.g., ...). Figure 4 The left and right directions shown are coplanar, and the bracket 4 can swing about the rotation axis in this plane.

[0069] In one illustrative embodiment, reference is made to... Figure 1 As shown, one side of the connector 2 is provided with an arc-shaped groove, the curvature of which is configured to be concentric with the axis of rotation. Furthermore, the surface 9 of the bracket 4 facing the groove (as shown) Figure 1The surface shown (facing the viewpoint) is provided with a screw extending from the groove. Thus, the position of the screw relative to the groove can be adjusted by pushing the screw (i.e., the angle of the bracket 4 relative to the sleeve 11 can be adjusted). Furthermore, a nut 3 is detachably mounted on the end of the screw extending from the groove to act as a locking element. When the nut 3 is tightened onto the connector 2 and presses against the surface of the connector 2, the position of the bracket 4 is fixed.

[0070] In this embodiment, the bracket 4 can be loosened or tightened by rotating the nut 3. When the bracket 4 is in a loose state, it can be used to adjust the angle between the bracket 4 and the sleeve 11 (i.e., the fixing part).

[0071] For example, if the thickness of the assembled sample block 6 is large, it can be achieved by loosening the support 4 and allowing its free end (such as...) Figure 3 and Figure 4 The upper end shown swings toward the sleeve 11 to increase the distance between the first support 51 and the second support 52 along the height direction, thereby adapting to the thickness of the sample block 6 for clamping (of course, the above distance can also be adjusted in the opposite direction when the thickness of the sample block 6 is thin, which will not be described in detail here), so as to firmly assemble the sample block 6 onto the support device.

[0072] For example, when the inner tube (i.e., the moving part) is in the second position (i.e., as...) Figure 4 As shown in the diagram, if the inner tube has moved to its limit and cannot extend further, but the sample block 6 has not yet bent to the preset bending degree (as shown in the diagram, angle β has not reached approximately 0°, i.e., the sample block 6 has achieved a 180° fold), then the angle of the bracket 4 relative to the sleeve 11 can be adjusted (e.g., ...). Figure 4 (As indicated by the arrow direction), so that sample block 6 further reaches the preset bending degree. It should be understood that the embodiments of this disclosure are not limited thereto.

[0073] For example, the locking element can also be made of spline and keyway. Specifically, multiple through holes can be provided on the surface of the connector 2, and a keyway can be provided on the surface of the bracket 4 facing the through holes. The spline can be plugged into and assembled onto the keyway through different through holes so that the bracket 4 can be adjusted at a discontinuous angle.

[0074] Alternatively, the locking element can be an elastic element (such as a tension spring, compression spring, torsion spring, etc.) disposed between the bracket 4 and the connecting member 2, so that the bracket 4 and the connecting member 2 (since the connecting member 2 is fixed on the sleeve 11, it can be regarded as the bracket 4 and the sleeve 11) have a swing direction along the bracket 4 (e.g. Figure 4 Apply pressure (clockwise or counterclockwise as shown) to clamp the sample 6 tightly.

[0075] For example, the locking mechanism can also be an electric mechanism, such as a screw driven by a motor (which can be regarded as the rotation axis of the bracket 4) to remotely adjust the relative angle between the bracket 4 and the sleeve 11.

[0076] Figure 6 This is a test device according to an illustrative embodiment of the present invention.

[0077] According to the testing equipment provided by this utility model, such as Figure 6 As shown, the device includes a support assembly and a liquid tank 7. The liquid tank 7 stores coolant 8. The support assembly is configured to support the sample block 6 to be tested and to immerse the sample block 6 below the surface of the coolant 8 in the liquid tank 7.

[0078] In one illustrative embodiment, such as Figure 6 As shown, the liquid tank 7 includes, but is not limited to, containers with openings, and the cold liquid 8 includes, but is not limited to, propylene glycol / water solution, or an ethanol / water mixture. Furthermore, the liquid tank 7 is also equipped with a refrigeration mechanism (such as a cooling rod) to cool the cold liquid 8 to a suitable temperature. The configuration of the liquid tank 7, cold liquid 8, and refrigeration mechanism can be based on currently implemented relevant standards and is not limited herein.

[0079] Reference Figure 6 As shown, with the moving part in the first position, sample 6 is supported between the first support and the second support, and inverted below the liquid surface of the liquid tank 7. After a preset time (e.g., 1 hour), it can be cooled to a suitable temperature. At this time, refer to... Figure 4 As shown, the driving moving part moves to the second position below the liquid surface so that the sample block 6 bends.

[0080] After the sample block is bent according to the preset bending speed (e.g., within 3 seconds) and bending degree (e.g., forming a bend of approximately 180° along the middle), the sample block 6 can be taken out and observed to see if the bent part is broken or cracked.

[0081] It should also be noted that the directional terms mentioned in the embodiments, such as "up," "down," "front," "back," "left," and "right," are only for reference to the directions in the accompanying drawings and are not intended to limit the scope of protection of this utility model. Throughout the drawings, the same elements are represented by the same or similar reference numerals. Conventional structures or constructions will be omitted where they may cause confusion in understanding this utility model.

[0082] The embodiments of the present invention have been described above. However, these embodiments are for illustrative purposes only and are not intended to limit the scope of the present invention. Although various embodiments have been described above, this does not mean that the measures in the various embodiments cannot be used advantageously in combination. The scope of the present invention is defined by the appended claims and their equivalents. Various substitutions and modifications can be made by those skilled in the art without departing from the scope of the present invention, and all such substitutions and modifications should fall within the scope of the present invention.

Claims

1. A support device for use in low temperature testing of a waterproofing membrane, characterized in that, The application relates to a supporting device and a supporting assembly. The linear actuator comprises a fixed part and a movable part, the movable part is telescopically arranged in the fixed part and is configured to move between a first position in which the movable part is partially retracted into the fixed part and a second position in which the movable part is partially extended out of the fixed part, in the second position, the part of the movable part exposed outside the fixed part is more than that in the first position; At least two supports (4) are symmetrically arranged in the fixed part, the supports (4) and the linear actuator are provided with supporting parts (5), the supporting parts (5) are configured to be perpendicular to the movable part or the supports (4); In the first position of the movable part, a first supporting part (51) arranged in the movable part is located on one side of a line connecting two second supporting parts (52) arranged in the supports (4), so as to clamp a sample block (6) to be tested between the first supporting part (51) and the second supporting parts (52), in the second position of the movable part, the first supporting part (51) is extended to the other side of the line connecting the two second supporting parts (52) along with the second supporting parts (52), so as to press against the middle part of the sample block (6) and make the sample block (6) bend.

2. The support device of claim 1, wherein The linear actuator further comprises a driving part arranged in the fixed part and configured to drive the movable part to move between the first position and the second position.

3. The support device according to claim 1 or 2, characterized in that The linear actuator comprises an electric push rod (1); The sleeve (11) of the electric push rod (1) serves as the fixed part, and the inner tube (14) of the electric push rod (1) serves as the movable part.

4. The support apparatus of claim 1, wherein The supporting parts (5) are configured in a rod-shaped structure.

5. The support apparatus of claim 1, wherein The two supports (4) are swingably arranged in the fixed part.

6. The support device of claim 5, wherein The supports (4) have mounting ends and free ends, the mounting ends are rotatably arranged in the fixed part, and the free ends are provided with the supporting parts (5); The two supports (4) are configured to swing between a third position in which the two free ends are close to each other and a fourth position in which the two free ends are far away from each other.

7. The support device of claim 6, wherein The two supports (4) are configured to be adjusted to the third position in response to the movable part being in the second position, so as to further bend the sample block (6).

8. A support device according to claim 6 or 7, characterised in that The application further comprises two connecting members (2) symmetrically arranged on two sides of the fixed part; The mounting ends of the supports (4) are rotatably arranged on the connecting members (2).

9. The support device of claim 8, wherein The application further comprises a locking member detachably arranged between the connecting members (2) and the supports (4) and suitable for keeping the supports (4) in the third position.

10. A test apparatus, characterized by, The application relates to a supporting device and a supporting assembly. The application relates to a supporting device and a supporting assembly. The application relates to a supporting device and a supporting assembly. The application relates to a supporting device and a supporting assembly. The application relates to a supporting device and a supporting assembly. The application relates to a supporting device and a supporting assembly. The application relates to a supporting device and a supporting assembly. The application relates to a supporting device and a supporting assembly. The application relates to a supporting device and a supporting assembly. The application relates to a supporting device and a supporting assembly. The application relates to a supporting device and a supporting assembly. The application relates to a supporting device and a supporting assembly. The application relates to a supporting device and a supporting assembly. The application relates to a supporting device and a supporting assembly. The application relates to a supporting device and a supporting assembly. The application relates to a supporting device and a supporting assembly. The application relates to a supporting device and a supporting assembly. The application relates to a supporting device and a supporting assembly. The application relates to a supporting device and a supporting assembly. The application relates to a supporting device and a supporting assembly. The application relates to a supporting device and a supporting assembly. The application relates to a supporting device and a supporting assembly. The application relates to a supporting device and a supporting assembly. The application relates to a supporting device and a supporting assembly. The application relates to a supporting device and a supporting assembly. The application relates to a supporting device and a supporting assembly. The application relates to a supporting device and a supporting assembly. The application relates to a supporting device and a supporting assembly. The application relates to a supporting device and a supporting assembly. The application relates to a supporting device and a supporting assembly. The application relates to a supporting device and a supporting assembly. The application relates to a supporting device and a supporting assembly. The application relates to a supporting device and a supporting assembly. The application relates to a supporting device and a supporting assembly. The application relates to a supporting device and a supporting assembly. The application relates to a supporting device and a supporting assembly. The application relates to a supporting device and a supporting assembly. The application relates to a supporting device and a supporting assembly. The application relates to a supporting device and a supporting assembly. The application relates to a supporting device and a supporting assembly. The application relates to a supporting device and a supporting assembly. The application relates to a supporting device and a supporting assembly. The application relates to a supporting device and a supporting assembly. The application relates to a supporting device and a supporting assembly. The application relates to a supporting device and a supporting assembly. The application relates to a supporting device and a supporting assembly. The application relates to a supporting device and a supporting assembly. The application relates to a supporting device and a supporting assembly. The application relates to a supporting device and a supporting assembly. The application relates to a supporting device and a supporting assembly. The application relates to a supporting device and a supporting assembly. The application relates to a supporting device and a supporting assembly. The application relates to a supporting device and a supporting assembly. The application relates to a supporting device and a supporting assembly. The application relates to a supporting device and a supporting assembly. The application relates to a supporting device and a supporting assembly. The application relates to a supporting device and a supporting assembly. The application relates to a supporting device and a supporting assembly. The application relates to a supporting device and a supporting assembly. The application relates to a supporting device and a supporting assembly. The application relates to a supporting device and a supporting assembly. The application relates to a supporting device and a supporting assembly. The application relates to a supporting device and a supporting assembly. The application relates to a supporting device and a supporting assembly. The application relates to a supporting device and a supporting assembly. The application relates to a supporting device and a supporting assembly. The application relates to a supporting device and a supporting assembly. The application relates to a supporting device and a supporting assembly. The application relates to a supporting device and a supporting assembly. The application relates to a supporting device and a supporting assembly. The application relates to a supporting device and a supporting assembly. The application relates to a supporting device and a supporting assembly. The application relates to a supporting device and a supporting assembly. The application relates to a supporting device and a supporting assembly. The application relates to a supporting device and a supporting assembly. The application relates to a supporting device and a supporting assembly. The application relates to a supporting device and a supporting assembly. The application relates to a supporting device and a supporting assembly. The application relates to a supporting device and a supporting assembly. The application relates to a supporting device and a supporting assembly. The application relates to a supporting device and a supporting assembly. The application relates to a supporting device and a supporting assembly. The application relates to a supporting device and a supporting assembly. The application relates to a supporting device and a supporting assembly. The application relates to a supporting device and a supporting assembly. The application relates to a supporting device and a supporting assembly. The application relates to a supporting device and a supporting assembly. The application relates to a supporting device and a supporting assembly. The application relates to a supporting device and a supporting assembly. The application relates to a supporting device and a supporting assembly. The application relates to a supporting device and a supporting assembly. The application relates to a supporting device and a supporting assembly. The application relates to a supporting device and a supporting assembly. The application relates to a supporting device and a supporting assembly. The application relates to a supporting device and a supporting assembly. The application relates to a supporting device and a supporting assembly. The application relates to a supporting device and a supporting assembly. The application relates to a supporting device and a supporting assembly. The application relates to a supporting device and a supporting assembly. The application relates to a supporting device and a supporting assembly. The application relates to a supporting device and a supporting assembly. The application relates to a supporting device and a supporting assembly. The application relates to a supporting device and a supporting assembly. The application relates to a supporting device and a supporting assembly. The application relates to a supporting device and a supporting assembly. The application relates to a supporting device and a supporting assembly. The application relates to a supporting device and a supporting assembly. The application relates to a supporting device and a supporting assembly. The application relates to a supporting device and a supporting assembly. The application relates to a supporting device and a supporting assembly. The application relates to a supporting device and a supporting assembly. The application relates to a supporting device and a supporting assembly. The application relates to a supporting device and a supporting assembly. The application relates to a supporting device and a supporting assembly. The application relates to a supporting device and a supporting assembly. The application relates to a supporting device and a supporting assembly. The application relates to a supporting device and a supporting assembly. The application relates to a supporting device and a supporting assembly. The application relates to a supporting device and a supporting assembly. The application relates to a supporting device and a supporting assembly

Images