Concrete slump measuring spill prevention device

Abstract

The utility model discloses a concrete slump measurement anti -spray device belongs to building engineering detection equipment technical field, including test cylinder, splash -proof mechanism and leakage prevention mechanism, and the bottom outer wall of test cylinder is provided with the clamping slot, and the splash -proof mechanism detachably sets up on the test cylinder upper mouth, including guide hopper, and the guide hopper bottom has the extension ring of annular groove formation and splash ring, and the annular groove is provided with the sealing ring, and the test cylinder upper mouth outer wall fixedly connected with the rotating joint, and the U -shaped card and the board are rotatably connected in the test cylinder and are buckled in the splash ring, and the leakage prevention mechanism includes base, and the base top surface is provided with the recess of shape compatible for the test cylinder of supporting. The utility model discloses through splash -proof mechanism prevents top splashing, through leakage prevention mechanism and tight bottom seal, effectively solved the problem of top splashing and bottom leakage in concrete test, guaranteed the accuracy of measurement result, and the structure is stable and good sealing.

Description

Technical Field

[0001] This utility model relates to the field of building engineering testing equipment technology, and in particular to a concrete slump measurement and spillage prevention device. Background Technology

[0002] The concrete slump test is a standard and commonly used field testing method for evaluating the workability of concrete mixes. The concrete slump test usually uses a funnel-shaped slump cone, i.e., a test tube, which has a smaller opening at the top and a larger opening at the bottom. The standard operating procedure includes placing the test tube on a solid and flat base, filling the tube with concrete mix in layers, and compacting each layer evenly.

[0003] In actual operation, especially when pouring concrete mixture into the top of the test cylinder and when tamping, the material will splash outward under impact and vibration because the top is open. This splashing will not only pollute the test site and cause inconvenience for subsequent cleaning, but also lead to the loss of some mixture. More importantly, during the tamping process, the bottom of the test cylinder is only placed on the base plate, and there is a gap between the two. The impact and vibration of the tamping rod will cause the cement slurry in the concrete mixture to leak out from the gap between the bottom of the test cylinder and the base plate.

[0004] The splashing at the top and the leakage at the bottom together constitute the spillage problem during the test. The loss of the mixture, especially the slurry, will change the original water-cement ratio and composition of the concrete sample in the cylinder, ultimately leading to inaccurate slump values ​​that cannot truly reflect the actual workability of the batch of concrete and misleading the judgment of project quality. At present, there is a lack of an integrated anti-splashing device that can effectively solve the problems of top splashing and bottom leakage at the same time.

[0005] Therefore, this utility model proposes a concrete slump measurement and spill prevention device to address the shortcomings of existing technologies. Utility Model Content

[0006] In view of the problems in the existing technology of concrete slump measurement, such as material splashing due to the open upper opening of the test cylinder and slurry leakage due to poor sealing between the lower opening of the test cylinder and the bottom plate, the present invention aims to provide a concrete slump measurement anti-spillage device with an improved structure that can effectively solve the above problems.

[0007] This utility model provides a concrete slump measurement anti-splashing device, including: a test cylinder, and an anti-splashing mechanism detachably disposed at the upper opening of the test cylinder and an anti-leakage mechanism for supporting and locking the lower opening of the test cylinder;

[0008] The test cylinder has a slot on its bottom outer wall;

[0009] Furthermore, the splash-proof mechanism includes a guide funnel and a U-shaped clip and plate for locking the guide funnel to the upper opening of the test tube. The leak-proof mechanism includes a base for supporting the lower opening of the test tube. The leak-proof mechanism also includes an L-shaped connecting rod and a rebound pedal disposed on the base and used to engage with the slot to clamp the test tube.

[0010] Preferably, the upper edge of the guide funnel's opening extends outward to form a wing plate, increasing the inlet area and facilitating the pouring of concrete mixture. The bottom of the guide funnel is integrally formed with an extension ring and a splash guard located outside the extension ring. An annular groove for engaging the upper opening of the test cylinder is formed between the extension ring and the splash guard. During installation, the extension ring fits against the inner wall of the test cylinder, and the splash guard covers the outer wall of the test cylinder.

[0011] Preferably, to improve the sealing performance of the anti-splash mechanism, a sealing ring is fixedly connected to the inner circumferential wall of the annular groove. When the guide funnel is engaged with the test cylinder, the sealing ring elastically abuts against the upper opening of the test cylinder to form a flexible seal, effectively preventing the slurry from splashing out from the connection gap during the compaction process.

[0012] Preferably, in order to achieve a stable locking of the splash-proof mechanism, a rotating joint is fixedly connected to the outer wall of the upper opening of the test tube. The U-shaped clip and plate are rotatably connected to the test tube through the rotating joint and can be rotated to fasten to the outer wall of the guide funnel. Specifically, they are fastened to the splash-proof ring at the bottom of the guide funnel, and the guide funnel and the test tube are tightly pressed together by the pressure of the clip.

[0013] Preferably, in order to achieve precise positioning of the leak-proof mechanism, the top surface of the base is provided with a groove that matches the shape of the lower opening of the test tube. The lower opening of the test tube is placed in the groove during installation, and the test tube is radially limited by the side wall of the groove to ensure accurate positioning of the test tube.

[0014] Preferably, to lock one side of the test cylinder, the L-shaped connecting rod is rotatably connected to the base. The leak-proof mechanism also includes a cross pin. When the L-shaped connecting rod rotates to the position where one end is inserted into the slot of the test cylinder, the cross pin can be inserted into the hinge of the L-shaped connecting rod to lock the L-shaped connecting rod and prevent the L-shaped connecting rod from accidentally coming loose during vibration.

[0015] Preferably, in order to lock the other side of the test cylinder and achieve quick operation, the rebound pedal is pivotally connected to the base and is symmetrically arranged with the L-shaped connecting rod to form a symmetrical clamping force. When the operator steps on the rebound pedal, the plate end can be lifted up to be inserted into the slot opposite to the L-shaped connecting rod. The structure is simple and the operation is convenient.

[0016] Preferably, to facilitate the operator to pick up and lift the test tube vertically after the test is completed, handles are fixedly connected to both sides of the middle part of the outer wall of the test tube for easy gripping and lifting.

[0017] This utility model has the following beneficial effects:

[0018] 1. This utility model solves the problem in the prior art that concrete mixture splashes out from the top of the test cylinder during the loading and compaction process when conducting concrete slump tests by setting an anti-splash mechanism, which includes a guide funnel that can be sealed and engaged with the top of the test cylinder, and a U-shaped clip and plate for locking the guide funnel.

[0019] 2. This utility model solves the problem in the prior art that the bottom of the test cylinder and the supporting plate are not sealed properly, and concrete slurry leaks from the bottom due to vibration during the compaction process, affecting the accuracy of the measurement. The clamping structure is inserted into the slot at the bottom of the test cylinder by setting a leak-proof mechanism, which includes a base with a groove and a symmetrical clamping structure formed by an L-shaped connecting rod and a rebound pedal.

[0020] 3. This utility model organically combines the anti-splash mechanism and the anti-leakage mechanism on the test cylinder to form a complete anti-splashing system. The locking and unlocking operations of each component are simple and quick, solving the problems of existing anti-splashing measures being fragmented, cumbersome to operate, or having incomplete anti-splashing effects. Attached Figure Description

[0021] Figure 1 A perspective view of the concrete slump measurement and spill prevention device proposed in this utility model;

[0022] Figure 2 This is a front view of the concrete slump measurement and spill prevention device proposed in this utility model;

[0023] Figure 3 This is a cross-sectional view of the guide funnel of the concrete slump measurement and spill prevention device proposed in this utility model.

[0024] Figure 4 This is a schematic diagram of the base of the concrete slump measurement and spill prevention device proposed in this utility model;

[0025] Figure 5 This is a split view of the L-shaped connecting rod of the concrete slump measurement and spill prevention device proposed in this utility model.

[0026] Legend:

[0027] 1. Test cylinder; 2. Handle; 3. Splash prevention mechanism; 301. Guide funnel; 302. Wing plate; 303. Extension ring; 304. Splash prevention ring; 305. Annular groove; 306. Sealing ring; 307. Rotary joint; 308. U-shaped clip and plate; 4. Leak prevention mechanism; 401. Base; 402. Groove; 403. Slot; 404. L-shaped connecting rod; 405. Cross pin; 406. Rebound pedal. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0029] Example:

[0030] Please refer to Figures 1 to 5 This utility model provides a concrete slump measurement anti-splashing device, which aims to solve the problem of concrete mixture splashing and leakage caused by the open upper opening and poor sealing of the lower opening of the test cylinder 1 in the existing technology during concrete slump test.

[0031] like Figure 1 and Figure 2 As shown, the concrete slump measurement anti-splash device includes a test cylinder 1, an anti-splash mechanism 3 detachably installed at the upper opening of the test cylinder 1, and an anti-leakage mechanism 4 for supporting and locking the lower opening of the test cylinder 1. The test cylinder 1 has a trumpet-shaped structure with a smaller upper opening and a larger lower opening. A slot 403 is provided on the outer wall of the bottom of the test cylinder 1. Handles 2 for easy gripping and lifting are fixedly connected to both sides of the middle of the outer wall of the test cylinder 1. The anti-splash mechanism 3 is used to prevent concrete mixture from splashing during the filling and compaction process. It includes a guide funnel 301 and a U-shaped clip and plate 308 for locking the guide funnel 301 to the upper opening of the test cylinder 1.

[0032] Please refer to Figure 3 The upper edge of the opening of the guide funnel 301 extends outward to form a wing plate 302, which facilitates the pouring and loading of concrete. The bottom of the guide funnel 301 is integrally formed with an extension ring 303 and a splash guard 304 located outside the extension ring 303. An annular groove 305 is formed between the extension ring 303 and the splash guard 304 to engage the upper opening of the test cylinder 1. When the guide funnel 301 is installed, the extension ring 303 is located on the inner wall of the test cylinder 1, the splash guard 304 is located on the outer wall of the test cylinder 1, and the annular groove 305 engages precisely with the upper opening of the test cylinder 1. A sealing ring 306 is fixedly connected to the inner circumferential wall of 05. When the guide funnel 301 is engaged with the test cylinder 1, the sealing ring 306 elastically abuts against the upper opening of the test cylinder 1 to enhance the sealing of the connection. To achieve a stable locking of the guide funnel 301, a rotating joint 307 is fixedly connected to the outer wall of the upper opening of the test cylinder 1. The U-shaped clip and plate 308 are rotatably connected to the test cylinder 1 through the rotating joint 307. The U-shaped clip and plate 308 can be rotated to engage with the splash guard 304 to form a snap-fit ​​structure, thereby tightly fixing the guide funnel 301 to the test cylinder 1.

[0033] Please refer to Figure 2 , Figure 4 and Figure 5 The concrete slump measurement anti-spillage device also includes a leak-proof mechanism 4. The leak-proof mechanism 4 is used to support and lock the lower opening of the test cylinder 1 to prevent concrete mixture from leaking from the bottom gap. The leak-proof mechanism 4 includes a base 401 for supporting the lower opening of the test cylinder 1. The top surface of the base 401 is provided with a groove 402 that matches the shape of the lower opening of the test cylinder 1. The lower opening of the test cylinder 1 is placed in the groove 402 during measurement. The groove 402 provides precise positioning and support for the lower opening of the test cylinder 1. In order to press the test cylinder 1 tightly onto the base 401, the leak-proof mechanism 4 also includes an L-shaped connecting rod 404 and a rebound pedal 406 set on the base 401. The L-shaped connecting rod 404 and the rebound pedal 406 are symmetrically arranged on the base 401 and are respectively used to engage with the slots 403 opened on the bottom outer wall of the test cylinder 1, thereby applying clamping and pressing forces to the test cylinder 1 from both sides.

[0034] Specifically, the L-shaped connecting rod 404 is rotatably connected to the base 401. The leak-proof mechanism 4 also includes a cross pin 405. When the L-shaped connecting rod 404 rotates to the position where one end is engaged in the slot 403, the cross pin 405 can be inserted into the hinge of the L-shaped connecting rod 404 to lock the L-shaped connecting rod 404. At the same time, the rebound pedal 406 is pivotally connected to the base 401, and the end of the pedal can be raised to engage in the slot 403 on the opposite side of the L-shaped connecting rod 404. This locking structure, which is symmetrically clamped by the L-shaped connecting rod 404 and the rebound pedal 406, ensures that the lower opening of the test tube 1 is firmly pressed into the groove 402 of the base 401, thus achieving reliable bottom leak prevention.

[0035] As a preferred embodiment, please refer to Figure 2 A rotating joint 307 is fixedly connected to the outer wall of the upper opening of the test cylinder 1. The U-shaped clip and plate 308 are rotatably connected to the test cylinder 1 through the rotating joint 307 and rotate to engage with the outer wall of the guide funnel 301.

[0036] As a preferred embodiment, please refer to Figure 4 The top surface of the base 401 has a groove 402 that matches the shape of the lower opening of the test tube 1, and the lower opening of the test tube 1 is placed in the groove 402.

[0037] In a preferred embodiment, the rebound pedal 406 is pivotally connected to the base 401 and is symmetrically arranged with the L-shaped connecting rod 404. The end of the rebound pedal 406 is raised to engage with the slot 403 opposite to the L-shaped connecting rod 404.

[0038] Working principle:

[0039] Before conducting the slump test, the lower opening of the test cylinder 1 is placed in the groove 402 of the base 401 of the anti-leakage mechanism 4. Then, the guide funnel 301 of the anti-splash mechanism 3 is installed on the upper opening of the test cylinder 1, so that the annular groove 305 at the bottom of the guide funnel 301 is engaged with the edge of the upper opening of the test cylinder 1. At this time, the extension ring 303 is located on the inner wall of the test cylinder 1, and the anti-splash ring 304 is located on the outer wall of the test cylinder 1. The sealing ring 306 in the annular groove 305 elastically abuts against the upper opening of the test cylinder 1 to form a seal. The operator then rotates the U-shaped clip and plate 308 rotatably connected to the rotating joint 307 to engage with the anti-splash ring 304, thus firmly locking the guide funnel 301.

[0040] While or after locking the guide funnel 301, the operator locks the base 401, rotates the L-shaped connecting rod 404 connected to the base 401 to be rotated into the slot 403 on one side of the test cylinder 1, and inserts the cross pin 405 to lock it. At the same time, the operator steps down the rebound pedal 406 pivotally connected to the base 401, so that the plate end of the rebound pedal 406 is raised to be inserted into the slot 403 on the other side of the test cylinder 1. Through the symmetrical arrangement and clamping action of the L-shaped connecting rod 404 and the rebound pedal 406, the lower opening of the test cylinder 1 is firmly pressed into the groove 402 of the base 401, completing the bottom sealing.

[0041] During the loading and compaction process, the concrete mixture is introduced into the test cylinder 1 through the guide funnel 301 with wing plate 302. The sealing structure of the anti-splash mechanism 3, the sealing ring 306 and the locking of the U-shaped clip and plate 308 effectively prevent the mixture from splashing from the upper connection of the test cylinder 1 during loading or compaction. At the same time, the locking structure of the anti-leakage mechanism 4, especially the symmetrical clamping of the L-shaped connecting rod 404 and the rebound pedal 406 against the slot 403, firmly presses the lower opening of the test cylinder 1 into the groove 402, effectively preventing concrete slurry from leaking from the gap between the lower opening of the test cylinder 1 and the base 401 during compaction. The handle 2 makes it easy to hold and lift the test cylinder 1 after compaction.

Claims

1. Concrete slump measurement and spill prevention device, including: Test cylinder (1), a slot (403) is provided on the bottom outer wall of the test cylinder (1); The splash prevention device is characterized in that it further includes a splash prevention mechanism (3) and a leak prevention mechanism (4). The splash prevention mechanism (3) is detachably disposed at the upper opening of the test cylinder (1). The splash prevention mechanism (3) includes a guide funnel (301) and a U-shaped clip and plate (308) for locking the guide funnel (301) at the upper opening of the test cylinder (1). The leak prevention mechanism (4) includes a base (401) for supporting the lower opening of the test cylinder (1). The leak prevention mechanism (4) further includes an L-shaped connecting rod (404) disposed on the base (401) and for engaging the clip groove (403) to clamp the test cylinder (1).

2. The concrete slump measurement and spill prevention device according to claim 1, characterized in that, The upper edge of the opening of the guide funnel (301) extends outward to form a wing plate (302). The bottom of the guide funnel (301) is integrally formed with an extension ring (303) and a splash guard (304) located outside the extension ring (303). An annular groove (305) for engaging the upper opening of the test tube (1) is formed between the extension ring (303) and the splash guard (304).

3. The concrete slump measurement and spill prevention device according to claim 2, characterized in that, A sealing ring (306) is fixedly connected to the inner circumferential wall of the annular groove (305). When the guide funnel (301) is engaged with the test cylinder (1), the sealing ring (306) elastically abuts against the upper opening of the test cylinder (1).

4. The concrete slump measuring and spill prevention device according to claim 1, characterized in that, A rotating joint (307) is fixedly connected to the outer wall of the upper opening of the test cylinder (1). The U-shaped clip and plate (308) are rotatably connected to the test cylinder (1) through the rotating joint (307) and can be rotated to engage with the outer wall of the guide funnel (301).

5. The concrete slump measurement and spill prevention device according to claim 1, characterized in that, The top surface of the base (401) is provided with a groove (402) that matches the shape of the lower opening of the test tube (1), and the lower opening of the test tube (1) is placed in the groove (402).

6. The concrete slump measurement and spill prevention device according to claim 5, characterized in that, The L-shaped connecting rod (404) is rotatably connected to the base (401). The leak-proof mechanism (4) also includes a cross pin (405). When the L-shaped connecting rod (404) is rotated to the position where it is engaged in the slot (403), the cross pin (405) can be inserted into the hinge of the L-shaped connecting rod (404) to lock the L-shaped connecting rod (404).

7. The concrete slump measurement and spill prevention device according to claim 5, characterized in that, The rebound pedal (406) is pivotally connected to the base (401) and is symmetrically arranged with the L-shaped connecting rod (404). The end of the rebound pedal (406) can be tilted up to engage with the slot (403) opposite to the L-shaped connecting rod (404).

8. The concrete slump measurement and spill prevention device according to claim 1, characterized in that, The test tube (1) has handles (2) fixedly connected to both sides of the middle part of its outer wall for easy gripping and lifting.

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