Waterproof coating extensibility testing device

Abstract

The utility model provides a waterproof coating extensibility testing device, and relates to the technical field of waterproof coating extensibility testing, the waterproof coating extensibility testing device comprises a base, the upper side of the base is provided with a fixed clamp and a movable clamp, and the fixed clamp and the movable clamp are respectively used for clamping two ends of a test piece; the driving mechanism is used for driving the movable clamp to move in the direction close to and away from the fixed clamp; the length scales are arranged on the upper side of the base in the moving direction of the moving clamp, and the length scales are used for measuring the moving distance of the moving clamp; the problems of inconvenience and high test cost of the extensibility test of the waterproof coating in the prior art are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of waterproof coating extensibility testing, and more specifically, relates to a waterproof coating extensibility testing device. Background Art

[0002] As an indispensable waterproof material for home decoration bathrooms, kitchens, balconies and other objects that need waterproofing, waterproof coatings can be applied to the surface of objects in different construction methods. They have the characteristics of strong adhesion and good flexibility. They are also called paint films or coatings. The construction methods of waterproof coatings are generally divided into base cleaning, marking and marking, additional layer treatment, primer, two-layer coating, surface coating, first-layer water-tightness test of waterproof layer, repair, secondary waterproofing, second water-tightness, and project acceptance.

[0003] After forming a film, waterproof coatings must have a certain degree of extensibility to adapt to the deformation of the base layer caused by temperature difference, dryness and wetness, and ensure the waterproof effect. The existing method of testing the extensibility of waterproof coatings is to use a microcomputer-controlled electronic universal testing machine in the laboratory to perform an extensibility test. The testing machine is expensive, large in size, complex in structure, prone to errors in operation, and must be equipped with a special microcomputer program to achieve the test work. Utility Model Content

[0004] The purpose of the utility model is to provide a waterproof coating elongation testing device in view of the deficiencies in the prior art, so as to solve the problems of inconvenience and high testing cost of waterproof coating elongation testing in the prior art.

[0005] In order to achieve the above object, the utility model provides a waterproof coating elongation testing device, comprising:

[0006] A base, wherein a fixed fixture and a movable fixture are arranged on the upper side of the base, and the fixed fixture and the movable fixture are respectively used to clamp two ends of the test piece;

[0007] A driving mechanism, the driving mechanism is used to drive the movable fixture to move towards and away from the fixed fixture;

[0008] A length scale is provided on the upper side of the base along the moving direction of the moving fixture, and the length scale is used to measure the moving distance of the moving fixture.

[0009] Optionally, the movable fixture is connected to a movable ruler, and the outer end of the movable ruler is used to indicate the length scale.

[0010] Optionally, a fixed scale is provided on the base, and the fixed scale corresponds to the zero scale line of the length scale.

[0011] Optionally, the fixing clamp includes a first C-shaped bracket, the lower end of the first C-shaped bracket is fixed to the upper side of the base, a first clamping space is formed in the first C-shaped bracket, and a vertically arranged first clamping rod is provided at the upper end of the first C-shaped bracket, and the first clamping rod passes through the first C-shaped bracket and is threadedly connected to the first C-shaped bracket.

[0012] Optionally, a first gasket is provided on one side of the lower end of the first C-shaped bracket close to its upper end, a second gasket is rotatably connected to the lower end of the first clamping rod, and a first operating rod is provided on the upper end of the first clamping rod.

[0013] Optionally, the movable clamp includes a second C-shaped bracket, the lower end of the second C-shaped bracket is slidably connected to the upper side of the base, a second clamping space is formed in the second C-shaped bracket, and a vertically arranged second clamping rod is provided at the upper end of the second C-shaped bracket, and the second clamping rod passes through the second C-shaped bracket and is threadedly connected to the second C-shaped bracket.

[0014] Optionally, a third gasket is provided on one side of the lower end of the second C-shaped bracket close to its upper end, a fourth gasket is rotatably connected to the lower end of the second clamping rod, and a second operating rod is provided on the upper end of the second clamping rod.

[0015] Optionally, a slideway is provided on the upper side of the base, and a slider is provided at the lower end of the movable fixture, and the slider is slidably embedded in the slideway.

[0016] Optionally, the driving mechanism includes a gear rotatably connected to the lower end of the mobile fixture and a rack arranged on the upper side of the base, the gear is meshed with the rack, and the gear is connected to a crank.

[0017] Optionally, a scale is provided on the upper side of the base, and the length scale is provided on the scale.

[0018] The utility model provides a waterproof coating elongation testing device, which has the beneficial effects of: the waterproof coating elongation testing device is provided with a fixed clamp and a movable clamp on a base, the two can respectively clamp two ends of a test piece, the movable clamp can be moved under the driving action of a driving mechanism to stretch the test piece, during which the distance moved by the movable clamp before the test piece is stretched and when the test piece is broken can be measured by observing the length scale, and then the elongation of the waterproof coating can be obtained by simple calculation, the waterproof coating elongation testing device has a simple structure, low manufacturing cost, and is easy to carry and operate.

[0019] Other features and advantages of the present invention will be described in detail in the subsequent specific implementation section. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The above and other objects, features and advantages of the present invention will become more apparent through a more detailed description of exemplary embodiments of the present invention in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments of the present invention.

[0021] Figure 1 A schematic structural diagram of a waterproof coating elongation testing device according to an embodiment of the utility model is shown.

[0022] Figure 2 A schematic diagram of the top structure of a base of a waterproof coating elongation testing device according to an embodiment of the utility model is shown.

[0023] Description of reference numerals:

[0024] 1. Base; 2. Fixed fixture; 3. Moving fixture; 4. Moving ruler; 5. Fixed ruler; 6. Gear; 7. Rack; 8. Crank; 9. Ruler. DETAILED DESCRIPTION

[0025] The preferred embodiments of the present invention will be described in more detail below. Although the preferred embodiments of the present invention are described below, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to make the present invention more thorough and complete, and to fully convey the scope of the present invention to those skilled in the art.

[0026] like Figure 1 and Figure 2 As shown, the utility model provides a waterproof coating elongation testing device, comprising:

[0027] A base 1, a fixed fixture 2 and a movable fixture 3 are arranged on the upper side of the base 1, and the fixed fixture 2 and the movable fixture 3 are used to clamp two ends of the test piece respectively;

[0028] A driving mechanism, the driving mechanism is used to drive the mobile fixture 3 to move towards and away from the fixed fixture 2;

[0029] Length scale: The length scale is arranged on the upper side of the base 1 along the moving direction of the moving fixture 3 , and the length scale is used to measure the moving distance of the moving fixture 3 .

[0030] Specifically, in order to solve the problems of inconvenience and high testing cost of waterproof coating elongation test in the prior art, the waterproof coating elongation test device provided by the utility model is provided with a fixed clamp 2 and a movable clamp 3 on a base 1, and the two can respectively clamp the two ends of the test piece. The movable clamp 3 can move under the driving action of the driving mechanism to stretch the test piece. In this process, the distance moved by the movable clamp 3 before the test piece is stretched and when it is broken can be measured by observing the length scale, and then the elongation of the waterproof coating can be obtained by simple calculation. The waterproof coating elongation test device has a simple structure, low manufacturing cost, and is easy to carry and operate.

[0031] Optionally, the movable fixture 3 is connected to a movable ruler 4, and the outer end of the movable ruler 4 is used to indicate the length scale.

[0032] Specifically, one end of the movable ruler 4 is connected to the movable fixture 3, and the other end of the movable ruler 4 can indicate the length scale, so as to facilitate accurate reading of data.

[0033] Optionally, a fixed scale 5 is provided on the base 1, and the fixed scale 5 corresponds to the zero scale line of the length scale.

[0034] Specifically, the fixed ruler 5 is fixed on the base 1 to indicate the zero scale line. Based on the elongation test standard of the waterproof coating, the spacing between the fixed ruler 5 and the movable ruler 4 is 25 mm in the initial state. Then the specimen is stretched until it breaks, and the distance moved by the movable clamp 3 is read. Then 25 mm is subtracted from the distance to obtain the change. The change is divided by 25 mm and multiplied by 100 to obtain the elongation of the waterproof coating, which is convenient for calculation.

[0035] Optionally, the fixing clamp 2 includes a first C-shaped bracket, the lower end of the first C-shaped bracket is fixed to the upper side of the base 1, a first clamping space is formed in the first C-shaped bracket, and a vertically arranged first clamping rod is provided at the upper end of the first C-shaped bracket. The first clamping rod passes through the first C-shaped bracket and is threadedly connected to the first C-shaped bracket.

[0036] Optionally, a first gasket is provided on one side of the lower end of the first C-shaped bracket close to its upper end, the lower end of the first clamping rod is rotatably connected to the second gasket, and the upper end of the first clamping rod is provided with a first operating rod.

[0037] Specifically, the structure of the fixing clamp 2 is the same as that of the C-neck clamp, and the structure is simple. The C-neck clamp can also be directly modified and fixedly installed on the base 1, which is low-cost.

[0038] Optionally, the movable clamp 3 includes a second C-shaped bracket, the lower end of the second C-shaped bracket is slidably connected to the upper side of the base 1, a second clamping space is formed in the second C-shaped bracket, and a vertically arranged second clamping rod is arranged at the upper end of the second C-shaped bracket, the second clamping rod passes through the second C-shaped bracket and is threadedly connected to the second C-shaped bracket.

[0039] Optionally, a third gasket is provided on one side of the lower end of the second C-shaped bracket close to its upper end, the lower end of the second clamping rod is rotatably connected to a fourth gasket, and the upper end of the second clamping rod is provided with a second operating rod.

[0040] Specifically, the structure of the movable clamp 3 is the same as that of the C-neck clamp, and the structure is simple. The C-neck clamp can also be directly modified and slidably installed on the base 1, which is low-cost.

[0041] Optionally, a slideway is provided on the upper side of the base 1 , and a slider is provided on the lower end of the movable fixture 3 , and the slider is slidably embedded in the slideway.

[0042] Specifically, the slideway may be a T-shaped slide groove, which cooperates with a T-shaped slider to achieve the limitation and guidance of the mobile fixture 3 .

[0043] Optionally, the driving mechanism includes a gear 6 rotatably connected to the lower end of the mobile fixture 3 and a rack 7 arranged on the upper side of the base 1 , the gear 6 is meshed with the rack 7 , and the gear 6 is connected to a crank 8 .

[0044] Specifically, the crank 8 can drive the gear 6 to rotate, and through the meshing transmission between the gear 6 and the rack 7, the mobile fixture 3 is driven to move.

[0045] Optionally, a scale 9 is provided on the upper side of the base 1 , and a length scale is provided on the scale 9 .

[0046] Specifically, in order to conveniently set the length scale on the upper side of the base 1, a scale ruler 9 can be fixed on the upper surface thereof, which is low in cost and convenient to set.

[0047] In summary, when the waterproof coating elongation testing device provided by the utility model is used, take a test as an example: first, rotate the first operating lever and the second operating lever, and clamp and fix the cut test piece by the fixed clamp 2 and the movable clamp 3. During this process, the initial distance between the fixed ruler 5 and the movable ruler 4 is L0=25mm, and the fixed ruler 5 is flush with the zero scale line of the length scale on the upper side of the base 1; by turning the crank 8, the gear 6 is driven to rotate, so that the movable clamp 3 moves on the base 1 to stretch the test piece. At the moment when the test piece breaks, record the length value L1 displayed on the length scale corresponding to the position of the movable ruler 4 at this time, the distance between the two rulers Lx=L1-L0, and the elongation E of the waterproof coating is Lx / L0×100.

[0048] The various embodiments of the utility model have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes are obvious to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments.

Claims

1. A waterproof coating elongation testing device, characterized in that: include: A base, wherein a fixed fixture and a movable fixture are arranged on the upper side of the base, and the fixed fixture and the movable fixture are respectively used to clamp two ends of the test piece; A driving mechanism, the driving mechanism is used to drive the movable fixture to move towards and away from the fixed fixture; A length scale is provided on the upper side of the base along the moving direction of the moving fixture, and the length scale is used to measure the moving distance of the moving fixture.

2. The waterproof coating elongation testing device according to claim 1, characterized in that: The movable fixture is connected with a movable ruler, and the outer end of the movable ruler is used to indicate the length scale.

3. The waterproof coating elongation testing device according to claim 1, characterized in that: A fixed scale is arranged on the base, and the fixed scale corresponds to the zero scale line of the length scale.

4. The waterproof coating elongation testing device according to claim 1, characterized in that: The fixing fixture includes a first C-shaped bracket, the lower end of which is fixed to the upper side of the base, a first clamping space is formed in the first C-shaped bracket, and a vertically arranged first clamping rod is provided at the upper end of the first C-shaped bracket, the first clamping rod passes through the first C-shaped bracket and is threadedly connected to the first C-shaped bracket.

5. The waterproof coating elongation testing device according to claim 4, characterized in that: A first gasket is arranged on one side of the lower end of the first C-shaped bracket close to its upper end, a second gasket is rotatably connected to the lower end of the first clamping rod, and a first operating rod is arranged on the upper end of the first clamping rod.

6. The waterproof coating elongation testing device according to claim 1, characterized in that: The movable clamp includes a second C-shaped bracket, the lower end of which is slidably connected to the upper side of the base, a second clamping space is formed in the second C-shaped bracket, and a vertically arranged second clamping rod is provided at the upper end of the second C-shaped bracket, the second clamping rod passes through the second C-shaped bracket and is threadedly connected to the second C-shaped bracket.

7. The waterproof coating elongation testing device according to claim 6, characterized in that: A third gasket is arranged on one side of the lower end of the second C-shaped bracket close to its upper end, a fourth gasket is rotatably connected to the lower end of the second clamping rod, and a second operating rod is arranged on the upper end of the second clamping rod.

8. The waterproof coating elongation testing device according to claim 1, characterized in that: A slideway is arranged on the upper side of the base, a slider is arranged on the lower end of the movable fixture, and the slider is slidably embedded in the slideway.

9. The waterproof coating elongation testing device according to claim 1, characterized in that: The driving mechanism includes a gear rotatably connected to the lower end of the mobile fixture and a rack arranged on the upper side of the base, the gear is meshed with the rack, and the gear is connected to a crank.

10. The waterproof coating elongation testing device according to claim 1, characterized in that: A scale is arranged on the upper side of the base, and the length scale is arranged on the scale.

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