Water seepage tester

Abstract

The utility model relates to the technical field of pavement quality detection equipment, in particular to a water seepage tester which comprises a measuring cylinder, a bracket and a base, the bracket is arranged on the base, and the measuring cylinder is fixed on the bracket; a water leakage cavity coinciding with the axis of the base is formed in the bottom of the base, the measuring cylinder is communicated with the water leakage cavity through a pipeline, and a valve is arranged on the pipeline; the sealing structure is characterized in that the bottom of the base is further provided with a sealing ring coinciding with the axis of the base; the inner diameter of the sealing ring is smaller than the maximum width of the base, and the outer diameter of the sealing ring is larger than the maximum width of the water leakage cavity. A first waterproof wall is arranged on the edge of the inner ring of the bottom of the sealing ring, a second waterproof wall is arranged on the outer ring of the bottom of the sealing ring, and a plurality of sealing protrusions which are concentrically arranged are arranged on the contact face of the sealing ring and the base. The water seepage tester disclosed by the utility model is simple in sealing step, and can ensure that the sealing performance of the water seepage tester meets the experiment requirement in the experiment process.

Description

TECHNICAL FIELD

[0001] The utility model relates to road surface quality detection equipment technical field especially relates to a water permeation tester. BACKGROUND

[0002] The water permeability of asphalt pavement is an important index reflecting the water stability of asphalt pavement, because water is one of the main inducing factors of asphalt pavement diseases. Therefore, it is necessary to test the water permeability coefficient of asphalt pavement frequently. According to the 'highway subgrade and pavement field test regulation' P130, the water permeability coefficient test needs to use the water permeability tester of asphalt pavement. The key to the success of the test instrument is whether the sealing performance of water is good, if the sealing effect is not good, leakage will directly lead to test failure.

[0003] In the prior art, butter, glass putty or plasticine is often used for sealing, but the above-mentioned materials are not easy to clean, and they can easily damage the road surface. In addition, they can easily penetrate into the device and affect the test results. UTILITY MODEL CONTENT

[0004] The utility model discloses a kind of water permeation testers, its sealing step is simple, and sealing performance is good.

[0005] To solve the above problems, the utility model provides a kind of water permeation tester, including measuring cylinder, support and base, the base is equipped with the support, the support is fixed with the measuring cylinder;The bottom of the base is equipped with the water leakage cavity coinciding with its axis, the measuring cylinder is communicated with the water leakage cavity by pipeline, and the pipeline is equipped with valve;The bottom of the base is also equipped with the sealing ring coinciding with its axis;

[0006] The inner diameter of the sealing ring is less than the maximum width of the base, and the outer diameter of the sealing ring is greater than the maximum width of the water leakage cavity;The inner ring edge of the bottom of the sealing ring is provided with a first waterproof wall, and the outer ring of the bottom of the sealing ring is provided with a second waterproof wall, and the contact surface of the sealing ring and the base has a plurality of concentric sealing protrusions.

[0007] As an improvement of the above technical solution, the inner diameter of the sealing ring is 60-75% of its outer diameter.

[0008] As an improvement of the above technical solution, the base is equipped with a first counterweight device.

[0009] As an improvement of the above technical solution, the height of the first waterproof wall is less than the height of the second waterproof wall.

[0010] As an improvement of the above technical solution, a sealing strip is arranged along the inner wall of the second waterproof wall.

[0011] As the improvement of the above technical scheme, the sealing ring, the first waterproof wall, the second waterproof wall, the sealing protrusion and the sealing strip are made of rubber or silica gel and are integrally formed.

[0012] As the improvement of the above technical scheme, the second counterweight device is further arranged on the outer periphery of the base, and the outer diameter of the sealing ring is equal to the maximum width of the bottom of the base.

[0013] As the improvement of the above technical scheme, the second counterweight device is in sliding connection with the outer periphery of the base, and at least two locking structures are arranged at equal intervals on the outer periphery of the second counterweight device.

[0014] The locking structure comprises an embedding groove arranged on the side wall of the base, a mounting cavity arranged on the second counterweight device and a latch; the latch is arranged in the mounting cavity, one end of the latch extends to the outside of the second counterweight device through the mounting cavity, and the other end of the latch can extend into the embedding groove through the mounting cavity. The part of the latch located in the mounting cavity is provided with a connecting portion, the connecting portion is in sliding connection with the mounting cavity, a spring is arranged between the connecting portion and the side of the mounting cavity away from the embedding groove, and a handle portion is arranged at the end of the latch away from the embedding groove.

[0015] As the improvement of the above technical scheme, the outer side wall of the base is provided with at least two handles arranged at equal intervals.

[0016] The implementation of the present application has the following beneficial effects:

[0017] Compared with the prior art, the sealing ring is improved. The inner edge of the bottom of the sealing ring is provided with a first waterproof wall, the outer edge of the bottom of the sealing ring is provided with a second waterproof wall, and a plurality of sealing protrusions are arranged concentrically on the contact surface with the base. Under the pressure of the water permeability tester, the first waterproof wall is in contact with the ground and deforms, and under the cooperation of the first waterproof wall and the sealing protrusion, the part close to the inner diameter of the sealing ring deforms and seals with the bottom of the base or deforms into the water leakage cavity, and the second waterproof wall is turned out and deformed to be attached to the ground, so that the effect of rapid sealing is achieved. And the sealing structure does not need to use butter, glass putty, plasticine and other materials, is easy to clean and does not damage the road surface. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a sectional view of a water permeability tester according to an embodiment of the present application;

[0019] Figure 2 is a perspective view of a sealing ring according to an embodiment of the present application;

[0020] Figure 3 is a longitudinal sectional view of a sealing ring according to an embodiment of the present application;

[0021] Figure 4 is a longitudinal sectional view of the sealing ring of another embodiment of the utility model;

[0022] Figure 5 is a sectional view of the water permeability tester of another embodiment of the utility model;

[0023] Figure 6 is Figure 5 the enlarged view of A in figure. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical scheme and advantage of the utility model more clearly, the utility model will be described further in detail below in conjunction with the drawings.

[0025] Referring to Figures 1 to 3 The utility model embodiment provides a water permeability tester, including measuring cylinder 1, support 2 and base 3, be equipped with support 2 on base 3, the fixed measuring cylinder 1 has on support 2, the bottom of base 3 is equipped with the water leakage cavity 31 coinciding with its axis, the measuring cylinder 1 is communicated with water leakage cavity 31 through pipeline 4, be equipped with valve 41 on pipeline 4, the bottom of base 3 is still equipped with sealing ring 5 coinciding with its axis.

[0026] The structure of the sealing ring 5 provided at the bottom of the base 3 is improved in this embodiment. Specifically, the inner diameter of the sealing ring 5 is smaller than the maximum width of the base 3, and the outer diameter of the sealing ring 5 is greater than the maximum width of the water leakage cavity 31. The inner ring edge of the bottom of the sealing ring 5 is provided with a first waterproof wall 51, the outer ring of the bottom of the sealing ring 5 is provided with a second waterproof wall 52, and the contact surface of the sealing ring 5 and the base 3 has a plurality of concentric sealing protrusions 53.

[0027] Compared with the prior art, the inner ring edge of the bottom of the sealing ring 5 is provided with a first waterproof wall 51, the outer ring of the bottom of the sealing ring 5 is provided with a second waterproof wall 52, and the contact surface of the sealing ring 5 and the base 3 has a plurality of concentric sealing protrusions 53. Under the pressure of the water permeability tester, the first waterproof wall 51 contacts the ground and deforms, and under the cooperation of the first waterproof wall 51 and the sealing protrusions 53, the sealing protrusions 53 part near the inner diameter of the sealing ring 5 deforms and seals with the bottom of the base 3 or deforms into the water leakage cavity 31, and the second waterproof wall 52 turns out and deforms to adhere to the ground, thereby achieving the effect of rapid sealing.

[0028] The inner diameter and outer diameter of the sealing ring 5 affect the effective sealing area. Preferably, the inner diameter of the sealing ring 5 is 60-75% of the outer diameter. When the inner diameter of the sealing ring 5 is less than 60% of the outer diameter, the effective sealing area of the sealing ring 5 is too large, which causes waste; when the inner diameter of the sealing ring 5 is greater than 75% of the outer diameter, the effective sealing area of the sealing ring 5 is too small, which cannot ensure the sealing performance and is prone to water leakage.

[0029] Preferably, the base 3 is provided with a first counterweight device 6. The first counterweight device 6 can apply uniform pressure to the base 3, so that the sealing ring 5 is uniformly stressed.

[0030] Preferably, the height of the first waterproof wall is less than the height of the second waterproof wall. The higher the height of the second waterproof wall, the greater the effective sealing area of the outer periphery of the sealing ring, so that water is less likely to flow out of the sealing ring.

[0031] More preferably, referring to Figure 4 As shown in another embodiment of the utility model, sealing strips 54 are arranged along the inner wall of the second waterproof wall 52. When the second waterproof wall 52 is deformed and turned outward under pressure, the sealing strips 54 come into contact with the ground. At this time, the sealing strips 54, the second waterproof wall 52 and the ground form multiple sealing spaces, increasing the difficulty of water seepage. The sealing ring 5, the first waterproof wall 51, the second waterproof wall 52, the sealing protrusion 53 and the sealing strip 54 are made of rubber or silicone and are integrally formed.

[0032] In actual operation, referring to Figure 5 and Figure 6 Most of the road surfaces are uneven and have ups and downs, so the water seepage tester needs high sealing performance. Preferably, the utility model also includes a second counterweight device 7, and the outer periphery of the base 3 is provided with the second counterweight device 7. The outer diameter of the sealing ring 5 is equal to the maximum width of the bottom of the base 3. When sealing, the second counterweight device 7 is placed down, and the second counterweight device 7 is pressed on the second waterproof wall 52. The sealing strips 54 on the inner wall of the second waterproof wall 52 come into contact with the ground and are deformed under pressure. Several sealing structures are formed at the second waterproof wall 52, improving the sealing performance.

[0033] Preferably, the second counterweight device 7 is in sliding connection with the outer periphery of the base 3, and at least two locking structures are arranged at equal intervals along the outer periphery of the second counterweight device 7.

[0034] The locking structure comprises an embedding groove 75 arranged on the side wall of the base 3, a mounting cavity 73 and a bolt 71 arranged on the second counterweight device 7; the bolt 71 is arranged in the mounting cavity 73, one end of the bolt 71 extends out of the second counterweight device 7 through the mounting cavity 73, and the other end of the bolt 71 can extend into the embedding groove 75 through the mounting cavity 73. The part of the bolt 71 located in the mounting cavity 73 is provided with a connecting part 74, the connecting part 74 is in sliding connection with the mounting cavity 73, a spring 72 is arranged between the connecting part 74 and the side of the mounting cavity 73 away from the embedding groove 75, and the end of the bolt 71 away from the embedding groove 75 is provided with a handle part.

[0035] Preferably, the outer side wall of the base is provided with at least two equidistantly arranged handles.

[0036] The above is the preferred embodiment of the present application, and it should be pointed out that, for those skilled in the art, without departing from the principles of the present application, a number of improvements and refinements can be made, and these improvements and refinements are also considered to be within the protection scope of the present application.

Claims

1. A water seepage tester, comprising a measuring cylinder, a support, and a base, wherein the support is mounted on the base, and the measuring cylinder is fixed on the support; the bottom of the base has a leakage cavity coinciding with its axis, and the measuring cylinder is connected to the leakage cavity via a pipe, wherein a valve is mounted on the pipe; characterized in that, The bottom of the base is also provided with a sealing ring that coincides with its axis; The inner diameter of the sealing ring is smaller than the maximum width of the base, and the outer diameter of the sealing ring is larger than the maximum width of the leakage cavity; the inner edge of the bottom of the sealing ring is provided with a first waterproof wall, the outer edge of the bottom of the sealing ring is provided with a second waterproof wall, and the contact surface between the sealing ring and the base has multiple concentrically arranged sealing protrusions.

2. The water seepage test apparatus as described in claim 1, characterized in that, The inner diameter of the sealing ring is 60-75% of its outer diameter.

3. The water seepage test apparatus as described in claim 1, characterized in that, The base is equipped with a first counterweight device.

4. The water seepage test apparatus as described in claim 1, characterized in that, The height of the first waterproof wall is less than the height of the second waterproof wall.

5. The water seepage test apparatus as described in claim 4, characterized in that, Sealing strips are arranged along the inner wall of the second waterproof wall.

6. The water seepage test apparatus as described in claim 5, characterized in that, The sealing ring, the first waterproof wall, the second waterproof wall, the sealing protrusion, and the sealing strip are made of rubber or silicone and are integrally molded.

7. The water seepage test apparatus as described in claim 5, characterized in that, It also includes a second counterweight device, which is provided on the outer periphery of the base, and the outer diameter of the sealing ring is equal to the maximum width of the bottom of the base.

8. The water seepage test apparatus as described in claim 7, characterized in that, The second counterweight device is slidably connected to the outer periphery of the base, and at least two locking structures are provided at equal intervals along the outer periphery of the second counterweight device; The locking structure includes an embedding groove on the side wall of the base, a mounting cavity for the second counterweight device, and a pin. The pin is located in the mounting cavity, with one end extending through the mounting cavity to the outside of the second counterweight device and the other end extending through the mounting cavity into the embedding groove. The portion of the pin located in the mounting cavity has a connecting part, which is slidably connected to the mounting cavity. A spring is provided between the connecting part and the side of the mounting cavity away from the embedding groove, and a handle is provided at the end of the pin away from the embedding groove.

9. The water seepage test apparatus as described in claim 1, characterized in that, The outer wall of the base has at least two handles that are equally spaced apart.

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