Permeameter calibration device

Abstract

The utility model belongs to the technical field of impermeability detection and calibration, and particularly relates to a permeameter calibration device which comprises a plurality of calibration flanges which are respectively driven by a plurality of abutting driving mechanisms. The plurality of abutting driving mechanisms respectively drive the plurality of calibration flanges to abut against a plurality of test molds of the permeameter, a pressure gauge is arranged in each calibration flange, the device further comprises a lifting plate, the plurality of abutting driving mechanisms are fixed at the bottom of the lifting plate, and the lifting plate is driven by a lifting rotation driving mechanism. According to the utility model, the plurality of calibration flanges are used for calibrating the plurality of test molds at the same time, the calibration efficiency is higher, and the plurality of calibration flanges are driven to abut against the test molds at the same time through the cooperation of the lifting rotation driving mechanism and the plurality of abutting driving mechanisms, so that the calibration efficiency is further improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of anti-seepage detection and calibration, and particularly relates to a permeameter calibration device. Background Art

[0002] The permeameter (concrete permeability meter) is used to measure the concrete's permeability and permeability rating. It can also be used to measure the air permeability and quality inspection of building materials.

[0003] A permeameter utilizes the principle of equal pressure throughout a sealed container and its connecting piping system (disregarding water head). The device applies pressure with a water pump and maintains it within a specified range using an intelligent digital control meter. The device primarily consists of a test mold frame, a separator, a water pump, a water storage tank, and an electrical control unit. Existing permeameters are equipped with multiple test molds, enabling simultaneous permeability testing of multiple concrete specimens, resulting in high testing efficiency.

[0004] A concrete impermeability tester calibration device with publication number CN211086036U can be calibrated based on the concrete impermeability tester. The test mold flange cover is conveniently connected to the water pressure output port of the concrete impermeability tester. The detection and calibration information is displayed on the display screen at all times, and a foldable and retractable support component is provided.

[0005] However, the existing permeameter calibration device has only one detection flange, and multiple test molds need to be calibrated one by one. It is impossible to calibrate multiple test molds of the permeameter at the same time, and the calibration efficiency is low. Utility Model Content

[0006] The purpose of the present invention is to provide a permeameter calibration device to solve the problems raised in the above background technology.

[0007] In order to achieve the above technical objectives, the technical solution of the utility model is:

[0008] A permeameter calibration device includes a calibration flange, wherein a plurality of the calibration flanges are provided, and the plurality of the calibration flanges are respectively driven by a plurality of abutment driving mechanisms, and the plurality of abutment driving mechanisms respectively drive the plurality of the calibration flanges to abut against a plurality of test molds of the permeameter, and each of the calibration flanges is provided with a pressure gauge. The device also includes a lifting plate, wherein the plurality of abutment driving mechanisms are fixed to the bottom of the lifting plate, and the lifting plate is driven by a lifting and rotating driving mechanism.

[0009] As an improvement, the lifting and rotating drive mechanism includes a base plate, a screw is rotatably provided on the top of the base plate, the screw is driven by a rotating drive mechanism, a lifting sleeve is provided on the outer sleeve of the screw, the lifting sleeve is threadedly connected to the screw, and a lifting connecting piece is provided on the outer wall of the lifting sleeve, the lifting connecting piece is fixedly connected to a fixed connecting piece connected to the lifting plate, and the lifting and rotating drive mechanism also includes a limiting structure.

[0010] As a further improvement, the limiting structure includes a fixed cylinder fixed on the top of the base plate, the screw and the lifting sleeve are both located inside the fixed cylinder, a limiting slide is provided on the side wall of the fixed cylinder, and the end of the lifting connection piece away from the lifting sleeve passes through the side wall of the fixed cylinder and is slidably connected to the limiting slide.

[0011] As a further improvement, the limiting slide includes a lifting section and a rotating section, the lifting section is arranged along the axial direction of the fixed cylinder, and the top of the lifting section extends along the circumference of the fixed cylinder to form a rotating section.

[0012] As a further improvement, the fixed connecting member includes a fixed sleeve arranged on the outside of the fixed cylinder, the fixed sleeve is fixedly connected to one end of the lifting connecting member away from the lifting sleeve, a first connecting rod is fixedly provided on the outer side wall of the fixed sleeve, and the other end of the first connecting rod is fixedly connected to the top of the lifting plate through a second connecting rod.

[0013] As a further improvement, the system further comprises a storage box, wherein the top of the storage box is open, and the area of ​​the top opening of the storage box is the same as the bottom area of ​​the lifting plate.

[0014] As a further improvement, the rotation drive mechanism includes a first bevel gear fixed to the outside of the screw, a second bevel gear is rotatably provided on the inner side wall of the fixed cylinder, the first bevel gear is engaged with the second bevel gear, and a rotating crank is rotatably provided on the outer side wall of the fixed cylinder, the end of the rotating crank extends into the interior of the fixed cylinder and is fixedly connected to the second bevel gear.

[0015] Due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0016] The permeameter calibration device provided by the utility model can calibrate multiple test molds at the same time through multiple calibration flanges, which has higher calibration efficiency. Moreover, through the cooperation of the lifting and rotating drive mechanism and the multiple tightening drive mechanisms, the multiple calibration flanges are driven to tighten against the test molds at the same time, thereby further improving the calibration efficiency.

[0017] When not in use, the calibration flange and the tightening drive mechanism are located in the storage box for easy storage, and the lifting plate is located at the opening of the storage box. The top opening area of ​​the storage box is the same as the bottom area of ​​the lifting plate. The lifting plate can protect the calibration flange in the storage box and prevent dust from falling into the storage box. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the permeameter;

[0019] Figure 2 This is a schematic diagram of the structure of the embodiment in an unused state;

[0020] Figure 3 This is a schematic diagram of the structure of the use state of this embodiment;

[0021] Figure 4 Schematic diagram of the structure of the lifting and rotating drive mechanism in this embodiment;

[0022] Among them: 1-body, 2-test mold, 3-water outlet, 4-calibration flange, 5-tightening drive mechanism, 6-lifting plate, 7-bottom plate, 8-screw, 9-lifting sleeve, 10-lifting connector, 11-fixed connector, 12-limiting structure, 13-fixed cylinder, 14-lifting section, 15-rotating section, 16-fixed sleeve, 17-first connecting rod, 18-second connecting rod, 19-storage box, 20-rotating crank, 21-first bevel gear, 22-second bevel gear. DETAILED DESCRIPTION

[0023] The present invention is further described below with reference to specific embodiments and accompanying drawings. The accompanying drawings are for illustrative purposes only and are schematic, not actual, representations. They should not be construed as limiting the present invention. To better illustrate the embodiments of the present invention, some components in the accompanying drawings may be omitted, enlarged, or reduced in size, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted from the accompanying drawings.

[0024] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "up", "down", "left", "right", etc. indicate directions or positional relationships, they are based on the directions or positional relationships shown in the drawings. This is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as limiting the present application. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0025] like Figure 1 The figure shows the structure of the permeameter. The permeameter includes a body 1 and multiple test molds 2 arranged on the top of the body 1. Each test mold 2 is provided with a water outlet 3. Each water outlet 3 is connected to a water pipe. The concrete specimen is placed in the test mold 2. The water pipe injects water into the test mold 2 through the water outlet 3 to test the impermeability of the concrete specimen.

[0026] like Figure 2-4 As shown, a permeameter calibration device includes multiple calibration flanges 4, which are respectively driven by multiple tightening drive mechanisms 5. A pressure gauge is provided inside each calibration flange 4, and the multiple pressure gauges are electrically connected to an external display device. The multiple tightening drive mechanisms 5 respectively drive the multiple calibration flanges 4 to tighten against multiple test molds 2 of the permeameter.

[0027] In this embodiment, the calibration flange 4 and the test mold 2 are fastened by bolts. The connection relationship between the bolts and the calibration flange 4 and the test mold 2 is prior art and will not be repeated here. When this embodiment is in use, a sealing gasket or other sealing structure can be set between the calibration flange 4 and the test mold 2 to seal the calibration flange 4 and the test mold 2, so that the calibration effect is better.

[0028] When calibrating the permeameter, the tightening drive mechanism 5 drives multiple calibration flanges 4 to move to tighten against multiple test molds 2 on the top of the permeameter, fixes the calibration flanges 4 and the test molds 2 with bolts, injects water between the test mold 2 and the calibration flange 4 through the water outlet 3 inside the test mold 2, and detects the water pressure between the test mold 2 and the calibration flange 4 through the pressure gauge inside the calibration flange 4 to calibrate the permeameter.

[0029] In this embodiment, the pressing drive mechanism 5 adopts a cylinder.

[0030] In this embodiment, a lifting plate 6 is further included, and a plurality of abutting drive mechanisms 5 are all fixed on the bottom of the lifting plate 6 , and the lifting plate 6 is driven by the lifting and rotating drive mechanism.

[0031] Specifically, the cylinders are all fixed to the bottom of the lifting plate 6 , and the output ends of the multiple cylinders are fixedly connected to the tops of the multiple calibration flanges 4 , and the cylinders drive the calibration flanges 4 to press against the test mold 2 .

[0032] In this embodiment, the lifting and rotating drive mechanism includes a base plate 7, and a screw 8 is rotatably provided on the top of the base plate 7. The screw 8 is driven by the rotating drive mechanism, and the rotating drive mechanism drives the screw 8 to rotate. The outer sleeve of the screw 8 is provided with a lifting sleeve 9, and the lifting sleeve 9 is threadedly connected to the screw 8. The outer wall of the lifting sleeve 9 is provided with a lifting connector 10, and the lifting connector 10 is fixedly connected to a fixed connector 11 connected to the lifting plate 6.

[0033] The lifting and rotating drive mechanism also includes a limiting structure 12, which includes a fixed cylinder 13 fixed on the top of the base plate 7. The fixed cylinder 13 is a cylindrical structure with a hollow interior. The screw 8 and the lifting sleeve 9 are both located inside the fixed cylinder 13. A limiting slide is provided on the side wall of the fixed cylinder 13. The end of the lifting connector 10 away from the lifting sleeve 9 passes through the side wall of the fixed cylinder 13 and is slidably connected to the limiting slide.

[0034] The rotary drive mechanism drives the screw 8 to rotate. When the screw 8 rotates, it drives the lifting sleeve 9, the lifting connector 10 and the fixed connector 11 to rise and fall, thereby driving the lifting plate 6 and multiple abutting drive mechanisms 5 and multiple calibration flanges 4 to rise and fall.

[0035] Specifically, the rotation drive mechanism includes a first bevel gear 21 fixed to the outside of the screw 8, and a second bevel gear 22 is rotatably provided on the inner wall of the fixed cylinder 13. The first bevel gear 21 is engaged with the second bevel gear 22. A rotating crank 20 is rotatably provided on the outer wall of the fixed cylinder 13. The end of the rotating crank 20 extends into the interior of the fixed cylinder 13 and is fixedly connected to the second bevel gear 22. Rotating the rotating crank 20 drives the second bevel gear 22 and the first bevel gear 21 to rotate, thereby driving the screw 8 to rotate.

[0036] In this embodiment, the limiting slide includes a lifting section 14 and a rotating section 15. The lifting section 14 is arranged along the axial direction of the fixed cylinder 13, and the top of the lifting section 14 extends along the circumferential direction of the fixed cylinder 13 to form a rotating section 15. When the screw 8 rotates, under the limiting action of the lifting section 14, the lifting sleeve 9 and the lifting connection 10 will rise, thereby driving the fixed connection 11, the lifting plate 6, the tightening drive mechanism 5 and the calibration flange 4 to rise. When the lifting sleeve 9 and the lifting connection 10 are raised to the top of the lifting section 14, when the screw 8 continues to rotate, the lifting sleeve 9 and the lifting connection 10 will rotate along the rotating section 15, thereby driving the fixed connection 11, the lifting plate 6, the tightening drive mechanism 5 and the calibration flange 4 to rotate.

[0037] In this embodiment, the lifting plate 6 is rotated 90° by setting the length of the rotating section 15 .

[0038] In this embodiment, the fixed connecting member 11 includes a fixed sleeve 16 that is sleeved on the outside of the fixed cylinder 13. The fixed sleeve 16 is fixedly connected to the end of the lifting connecting member 10 away from the lifting sleeve 9. A first connecting rod 17 is fixedly provided on the outer wall of the fixed sleeve 16. The other end of the first connecting rod 17 is fixedly connected to the top of the lifting plate 6 through a second connecting rod 18.

[0039] In this embodiment, a storage box 19 is further included. The top of the storage box 19 is open, and the top opening area of ​​the storage box 19 is the same as the bottom area of ​​the lifting plate 6. The bottom plate 7 is fixedly arranged on one side of the storage box 19. The storage box 19 can be used to store the calibration flange 4.

[0040] Preferably, the bottom of the storage box 19 and the bottom of the bottom plate 7 are located at the same horizontal plane, and the bottom of the storage box 19 and the bottom of the bottom plate 7 are both provided with pulleys to facilitate the movement of the calibration device.

[0041] Preferably, there are two lifting connectors 10, which are symmetrically arranged on the outside of the lifting sleeve 9, and both lifting connectors 10 are fixedly connected to the fixed sleeve 16. There are also two groups of limiting slides, which are symmetrically arranged on the fixed cylinder 13, and the two groups of limiting slides are respectively matched with the two lifting connectors 10.

[0042] Before using this embodiment, Figure 2 As shown, multiple calibration flanges 4 and multiple tightening drive mechanisms 5 are all located in the storage box 19, the lifting plate 6 is located at the top opening of the storage box 19, and the lifting sleeve 9 and the lifting connector 10 are both located on the lower part of the screw 8.

[0043] When the present embodiment is in use, the calibration device is pushed to one side of the permeameter, wherein the permeameter is in a vertical state with the bottom plate 7, and the crank 20 is rotated to drive the second bevel gear 22 and the first bevel gear 21 to rotate, thereby driving the screw 8 to rotate. Under the limit of the lifting section 14, the lifting sleeve 9, the lifting connection member 10, the fixed connection member 11, the lifting plate 6, the multiple abutting drive mechanisms 5 and the multiple calibration flanges 4 are raised. When raised to the top of the lifting section 14, the screw 8 continues to rotate, and the lifting sleeve 9 and the lifting connection member 10 rotate along the rotating section 15, thereby driving the fixed connection member 11. , the lifting plate 6, the multiple tightening drive mechanisms 5 and the multiple calibration flanges 4 are rotated 90°. At this time, the positions of the multiple calibration flanges 4 correspond to the positions of the multiple test molds 2 of the permeameter. Then, the multiple tightening drive mechanisms 5 are started to drive the multiple calibration flanges 4 to descend and tighten against the tops of the multiple test molds 2. Then, the multiple calibration flanges 4 and the corresponding multiple test molds 2 are fixed by bolts respectively, and water is injected between the calibration flange 4 and the test mold 2 through the water pipe of the permeameter. The pressure between the calibration flange 4 and the test mold 2 is measured by the pressure gauge inside the calibration flange 4 to realize the calibration of the permeameter.

[0044] The utility model calibrates multiple test molds at the same time through multiple calibration flanges, which has higher calibration efficiency. Moreover, through the cooperation of the lifting and rotating drive mechanism and the multiple tightening drive mechanisms, the multiple calibration flanges are driven to tighten against the test molds at the same time, which further improves the calibration efficiency.

[0045] The specific embodiments of the present invention described above do not limit the scope of protection of the present invention. Any other corresponding changes and modifications made based on the technical concept of the present invention should be included in the scope of protection of the claims of the present invention.

Claims

1. A permeameter calibration device, comprising a calibration flange, characterized in that: There are multiple calibration flanges, and the multiple calibration flanges are respectively driven by multiple tightening driving mechanisms. The multiple tightening driving mechanisms respectively drive the multiple calibration flanges to tighten against the multiple test molds of the permeameter. A pressure gauge is provided inside each calibration flange, and it also includes a lifting plate. The multiple tightening driving mechanisms are all fixed to the bottom of the lifting plate, and the lifting plate is driven by the lifting and rotating driving mechanism.

2. The permeameter calibration device according to claim 1, characterized in that The lifting and rotating drive mechanism includes a base plate, a screw is rotatably provided on the top of the base plate, the screw is driven by a rotating drive mechanism, a lifting sleeve is provided on the outer sleeve of the screw, the lifting sleeve is threadedly connected to the screw, and a lifting connecting piece is provided on the outer wall of the lifting sleeve, the lifting connecting piece is fixedly connected to a fixed connecting piece connected to the lifting plate, and the lifting and rotating drive mechanism also includes a limiting structure.

3. The permeameter calibration device according to claim 2, characterized in that: The limiting structure includes a fixed cylinder fixed on the top of the base plate, the screw and the lifting sleeve are both located inside the fixed cylinder, a limiting slide is provided on the side wall of the fixed cylinder, and the end of the lifting connector away from the lifting sleeve passes through the side wall of the fixed cylinder and is slidably connected to the limiting slide.

4. The permeameter calibration device according to claim 3, characterized in that The limiting slideway includes a lifting section and a rotating section. The lifting section is arranged along the axial direction of the fixed cylinder, and the top of the lifting section extends along the circumference of the fixed cylinder to form a rotating section.

5. The permeameter calibration device according to claim 4, characterized in that: The fixed connection member includes a fixed sleeve mounted on the outside of the fixed cylinder, the fixed sleeve is fixedly connected to one end of the lifting connection member away from the lifting sleeve, a first connecting rod is fixedly provided on the outer side wall of the fixed sleeve, and the other end of the first connecting rod is fixedly connected to the top of the lifting plate through a second connecting rod.

6. The permeameter calibration device according to claim 1, characterized in that The utility model further comprises a storage box, wherein the top of the storage box is open, and the area of ​​the top opening of the storage box is the same as the bottom area of ​​the lifting plate.

7. The permeameter calibration device according to claim 5, characterized in that: The rotary drive mechanism includes a first bevel gear fixed to the outside of the screw, a second bevel gear is rotatably provided on the inner side wall of the fixed cylinder, the first bevel gear is engaged with the second bevel gear, and a rotating crank is rotatably provided on the outer side wall of the fixed cylinder, the end of the rotating crank extends into the interior of the fixed cylinder and is fixedly connected to the second bevel gear.

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