Impermeable test piece placing tool for concrete water permeability resistance test

Abstract

The utility model provides an impervious test piece placing tool for concrete water permeability resistance test, which comprises a test disc and a lantern ring, the test disc comprises a chassis, a step is arranged at the upper end of the chassis, a flange is arranged at the edge of the upper end face of the chassis positioned at the periphery of the step, and air pressure holes are arranged at the radial periphery of the chassis. The air pressure holes penetrate through the peripheral surface and the upper end surface of the chassis; the lantern ring is detachably arranged on the periphery of the step in a sleeving mode, and when the lantern ring is arranged on the periphery of the step in a sleeving mode, the upper end face of the lantern ring is higher than the upper end face of the step. The detachable lantern ring is arranged on the periphery of the step of the test disc in a sleeving mode, when an anti-seepage test piece is placed, due to limitation of the lantern ring, it can be guaranteed that the peripheral face of the anti-seepage test piece and the peripheral face of the step are kept consistent, the experiment sleeve cannot be blocked by the step when the experiment sleeve is put down, and the test efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of concrete water permeability resistance test, in particular to a permeability resistance test piece placement tool used for concrete water permeability resistance test. Background Art

[0002] In GB / T 50082-2009 "Standard for Test Methods for Long-term Performance and Durability of Ordinary Concrete", the water-resistant test piece used for the concrete water permeability test is a cylindrical solid concrete structure. Before being placed in the test equipment, the water-resistant test piece needs to be installed on a placement plate, and then the equipment sleeve is placed on the placement plate and placed in the test equipment for relevant experiments.

[0003] The test plate is a T-shaped structure plate with a step at the top. The concrete specimen is placed on the step of the test plate, and the outer circumference needs to be consistent with the outer circumference of the step. Since the anti-permeability test piece is heavy, the outer circumference of the anti-permeability test piece is often inconsistent with the outer circumference of the step when it is placed manually, resulting in position deviation, causing the equipment sleeve to be stuck on the step when it falls and unable to fall, affecting the efficiency of the experimental installation. Utility Model Content

[0004] In order to solve the above technical problems, the purpose of the utility model is to provide a waterproof test piece placement tool for concrete water permeability resistance test, which has a detachable ring on the outer periphery of the test plate, and the ring is used to limit the placement position of the waterproof test piece to ensure that the equipment sleeve is quickly inserted into the test plate.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A tool for placing water-impermeability test pieces for concrete water permeability test, characterized in that it comprises a test plate and a collar, the test plate comprises a chassis, the upper end of the chassis is provided with a step, the edge of the upper end surface of the chassis located at the outer periphery of the step is provided with a flange, the radial outer periphery of the chassis is provided with an air pressure hole, the air pressure hole passes through the outer peripheral surface and the upper end surface of the chassis; the collar is detachably mounted on the outer periphery of the step, and when the collar is mounted on the outer periphery of the step, the upper end surface height of the collar is higher than the upper end surface of the step.

[0007] Furthermore, the collar is enclosed by an elastic plate, both ends of the elastic plate are provided with lugs, and a pair of the lugs are connected by bolts.

[0008] Furthermore, the collar is formed by hingedly connecting a pair of semicircular sleeves, and protrusions are respectively arranged at both ends of the pair of semicircular sleeves away from the hinge point, and through holes are arranged axially of the protrusions, and U-shaped pins are arranged in the pair of through holes.

[0009] Further, the outer peripheral array of the collar has vertical ribs.

[0010] Furthermore, the inner circumferential surface of the upper end portion of the collar is a conical surface, and the inner diameter of the upper end of the conical surface is greater than the inner diameter of the lower end.

[0011] Furthermore, the bottom outer end edge of the vertical rib abuts against the inner periphery of the flange.

[0012] Furthermore, the outer end edge of the vertical rib is an arc-shaped surface matching the inner circumference of the flange.

[0013] The utility model adopts the above technical solution, which has the following advantages:

[0014] The utility model provides a permeability test piece placement tool for concrete water permeability resistance test, which is sleeved on the outer periphery of the step of the test plate through a detachable ring. When the permeability test piece is placed, due to the restriction of the ring, the outer peripheral surface of the permeability test piece can be ensured to be consistent with the outer peripheral surface of the step, so that the test sleeve will not be stuck by the step when being lowered, thereby improving the test efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the test disk structure of Example 1 of the utility model.

[0016] Figure 2 This is a schematic diagram of the ring structure of Example 1 of the utility model.

[0017] Figure 3 This is a schematic diagram of the assembly structure during the test of Example 1 of the utility model.

[0018] Figure 4 This is a schematic diagram of the ring structure of Example 2 of the utility model.

[0019] The accompanying drawings are marked as follows: 1-test plate, 2-ring, 3-impermeability test piece, 011-chassis, 012-air pressure hole, 013-flange, 014-step, 021-elastic plate, 022-vertical rib, 023-lug, 024-semicircular sleeve, 025-bump, 026-U-shaped pin. DETAILED DESCRIPTION

[0020] The following will be combined with the accompanying drawings to describe the preferred embodiments of the present invention in detail, so as to more clearly understand the purpose, characteristics and advantages of the present invention. It should be understood that the embodiments shown in the accompanying drawings are not intended to limit the scope of the present invention, but are only intended to illustrate the essential spirit of the technical solution of the present invention.

[0021] Example 1

[0022] like Figure 1-Figure 2As shown. A permeability test piece placement tool for concrete water permeability test of this embodiment includes a test plate 1 and a collar 2. The test plate 1 includes a circular bottom plate 011. A cylindrical step 014 is provided at the center of the upper end surface of the bottom plate 011. A flange 013 is provided at the edge of the upper end surface of the bottom plate 011 located at the outer periphery of the step 014. The height of the flange 013 is lower than the height of the step 014. An air pressure hole 012 is provided at the radial outer periphery of the bottom plate 011. The air pressure hole 012 is used to add pressure to the bottom plate 011 during the test. The air pressure hole 012 is an L-shaped structure. One end of the air pressure hole 012 passes through the outer periphery of the bottom plate 011, and the other end passes through the upper end surface of the bottom plate 011. The ring 2 is detachably mounted on the outer periphery of the step 014, and the bottom of the ring 2 is fitted with the upper end surface of the chassis 011. When the ring 2 is mounted on the outer periphery of the step 014, the height of the ring 2 is higher than the upper end surface of the step 014, and the inner circumference of the ring 2 is consistent with or slightly larger than the outer circumference of the step 014 to facilitate the alignment and placement of the waterproof test piece 3.

[0023] Furthermore, in order to facilitate the detachable installation of the collar 2, the collar 2 is enclosed by the elastic plate 021 to form a circular sleeve, and lugs 023 are respectively provided at both ends of the elastic plate 021, and the lugs 023 extend to the outer periphery of the elastic plate 021. A bolt hole is provided on each lug 023, and a pair of lugs 023 are connected by bolts passing through the bolt holes to fix the collar 2. The bolt hole on the lug 023 can be a through hole, and a nut is sleeved on one end of the bolt.

[0024] Of course, it is also possible to choose that the bolt hole on the lug 023 on one side can be a through hole, and the bolt hole on the lug 023 on the other side can be a threaded hole. In this case, the bolt passes through the through hole on one side and is threadedly connected in the threaded hole on the other side to achieve the connection of a pair of lugs 023.

[0025] As a preference, the elastic plate 021 may be a metal elastic plate 021 .

[0026] Further, in order to facilitate the stable placement of the collar 2 on the chassis 011, the outer circumferential array of the collar 2 is provided with vertical ribs 022. The bottom of the vertical ribs 022 is supported on the chassis 011 to stabilize the collar 2.

[0027] Furthermore, in order to facilitate the placement of the impermeability test piece 3 , the inner circumference of the upper end of the collar 2 is a conical structure, the inner diameter of the upper end of the conical surface is larger than the inner diameter of the lower end, and the inner diameter of the lower end of the conical surface is flush with the lower end of the collar 2 .

[0028] Further, in order to facilitate the stability of the collar 2, the outer edge of the vertical rib 022 abuts against the inner periphery of the flange 013. At this time, the outer edge of the vertical rib 022 can be an arc surface matching the inner periphery of the flange 013, which not only facilitates the support of the vertical rib 022 and the chassis 011, but also facilitates the removal of the collar.

[0029] like Figure 3 When the utility model is used, the sleeve 2 is first opened and sleeved on the outer periphery of the step 014 of the bottom plate 011, and then the sleeve 2 is locked and the impermeability test piece 3 is placed along the upper end of the sleeve 2. During the placement process, under the limiting effect of the sleeve 2, the outer peripheral surface of the impermeability test piece 3 is basically flush with the outer peripheral surface of the step 014. After the impermeability test piece 3 is placed, the sleeve 2 is removed, and the test sleeve is sleeved on the impermeability test piece 3 and the step 014 of the test plate 1 to carry out the next test.

[0030] Example 2

[0031] like Figure 4 In this embodiment, the collar 2 is formed by a pair of semicircular sleeves 024 being hinged, wherein the two ends of the pair of semicircular sleeves 024 away from the hinge point are respectively provided with protrusions 025, each protrusion 025 is provided with a through hole in the axial direction, and a U-shaped latch 026 is provided in the pair of through holes, and the pair of protrusions are locked by the U-shaped latch 026. When the collar needs to be opened, the U-shaped latch 026 can be pulled out.

Claims

1. A device for placing water-resistant test pieces for concrete water-resistant permeability test, characterized in that: The test disc (1) comprises a test disc (1) and a collar (2), wherein the test disc (1) comprises a base (011), wherein a step (014) is arranged at the upper end of the base (011), a flange (013) is arranged at the edge of the upper end surface of the base (011) located at the outer periphery of the step (014), and an air pressure hole (012) is arranged at the radial outer periphery of the base (011), wherein the air pressure hole (012) passes through the outer periphery and the upper end surface of the base (011); the collar (2) is detachably sleeved on the outer periphery of the step (014), and when the collar (2) is sleeved on the outer periphery of the step (014), the upper end surface of the collar (2) is higher than the upper end surface of the step (014).

2. The anti-permeability test piece placement tool for concrete water permeability test according to claim 1, characterized in that: The collar (2) is enclosed by an elastic plate (021), and lugs (023) are respectively provided at both ends of the elastic plate (021), and a pair of lugs (023) are connected by bolts.

3. The anti-permeability test piece placement tool for concrete water permeability test according to claim 1, characterized in that: The collar (2) is formed by a pair of semicircular sleeves (024) being hingedly connected. The two ends of the pair of semicircular sleeves (024) away from the hinge point are respectively provided with protrusions (025). The protrusions (025) are axially provided with through holes, and U-shaped pins (026) are arranged in the pair of through holes.

4. The anti-permeability test piece placement tool for concrete water permeability test according to claim 2 or 3, characterized in that: The outer periphery of the collar (2) is arrayed with vertical ribs (022).

5. The anti-permeability test piece placement tool for concrete water permeability test according to claim 4, characterized in that: The inner peripheral surface of the upper end portion of the collar (2) is a conical surface, and the inner diameter of the upper end of the conical surface is greater than the inner diameter of the lower end.

6. The anti-permeability test piece placement tool for concrete water permeability test according to claim 4, characterized in that: The bottom outer end edge of the vertical rib (022) abuts against the inner periphery of the flange (013).

7. The anti-permeability test piece placement tool for concrete water permeability test according to claim 6, characterized in that: The outer end edge of the vertical rib (022) is an arc-shaped surface matching the inner circumference of the flange (013).

Images