CN219417463U - Concrete slump testing arrangement - Google Patents

Abstract

The application relates to the technical field of concrete performance test, specifically discloses a concrete slump testing arrangement, including slump section of thick bamboo, handle and bottom plate, vertical fixed mounting has the guide bar on the bottom plate of slump section of thick bamboo relative both sides, and the cover is equipped with the slider on the guide bar, and the surface of slider and the one end fixed connection of bracing piece have the joint board on hand vertical fixed mounting, be provided with the joint piece with the joint board block inside the bracing piece. The purpose of this patent has been solved the slump section of thick bamboo and has been changed and lead to the extravagant problem of resource when damaging by whole device.

Description

Concrete slump testing arrangement

Technical Field

The utility model relates to the technical field of concrete performance testing, in particular to a concrete slump testing device.

Background

Slump is a measure and indicator of concrete workability, and in construction sites and laboratories, slump tests are usually performed to determine the fluidity of the mix, and visual experience is aided in evaluating cohesiveness and water retention. The slump is measured by a quantization index, and is used for judging whether the construction can be normally performed. The slump test method comprises the following steps: filling concrete into a trumpet-shaped slump barrel with an upper opening of 100mm, a lower opening of 200mm and a height of 300mm for three times, knocking the barrel wall by a rammer from outside to inside for 25 times after filling, tamping, and trowelling. Then the barrel is pulled up, the concrete is slumped due to the dead weight, and the height of the highest point of the concrete after slump is subtracted by the height of the barrel (300 mm), which is called slump. If the difference is 10mm, the slump is 10.

For example, in the prior publication 202122309024.3, a concrete slump detection device is disclosed, which is implemented by the following principle: according to the method, concrete is filled in a slump cylinder according to a specified rule, a handle is held by hand and drives the slump cylinder to rise, because the limit sleeve and the vertical rod limit the sliding sleeve, the mistaken collision of the concrete is not caused by factors such as shaking of the hand, and the second spring can extrude the movable inserting block to extend into the limit sleeve in the process of moving the sliding sleeve to the top of the movable inserting block, the movable inserting block can be extruded by the sliding sleeve in the process of sliding upwards to enable the movable inserting block to extend into the communication hole, the second spring can extrude the movable inserting block to extend into the limit sleeve after the sliding sleeve moves to the top of the movable inserting block and limit the sliding sleeve, at the moment, the slump of the concrete can be detected, the concrete on the bottom plate is cleaned after detection is finished, the movable inserting block is not limited by pulling the handle through the movable rod, and the movable inserting block can be pushed to be pressed to the top of the bottom plate again by the first spring so that the slump cylinder can be pushed downwards to be detected next time.

In the above-mentioned publication, the slump cylinder is fixed on the elevator through the first connecting rod and the second connecting rod, if the slump cylinder is damaged or the elevator is damaged, the slump cylinder or the elevator cannot be detached and replaced independently, therefore, only the whole concrete slump detecting device can be replaced, and if only a certain structure in the whole concrete slump detecting device is damaged, the whole device is replaced or abandoned, so that the resource waste is caused.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides a concrete slump testing device, which solves the problem of resource waste caused by replacement of the whole device when a slump cylinder is damaged.

In order to solve the problems, the utility model adopts the following technical scheme: the utility model provides a concrete slump testing arrangement, includes slump section of thick bamboo, handle and bottom plate, vertical fixed mounting has the guide bar on the bottom plate of slump section of thick bamboo both sides relatively, and the cover is equipped with the slider on the guide bar, and the surface of slider and the one end fixed connection of bracing piece are at the vertical fixed mounting has the joint board on hand, is provided with the joint piece with the joint board block in the bracing piece inside.

The basic principle of the scheme is as follows:

through setting up the joint board of vertical installation on hand, then in the both sides fixed mounting guide bar of slump section of thick bamboo to the slider is established to the cover on the guide bar, at the surface fixed connection bracing piece of slider, set up the joint piece that can with the joint board block on hand in the bracing piece is inside, through removing the slider with joint piece and joint board block.

The beneficial effect that this scheme produced is:

1. the slump cylinder can be fixed between the two guide rods through the clamping connection of the clamping connection block and the clamping connection plate, so that the slump cylinder is prevented from shaking when concrete is poured into the slump cylinder;

2. through the block of joint piece and joint board, can the canning accomplish the back slump section of thick bamboo and promote, can not take place the mistake to bump to the concrete pile, and then make measuring result more accurate.

Further, the guide rod comprises a threaded rod and a spline shaft, the sliding blocks comprise a first sliding block and a second sliding block, the first sliding block is in threaded connection with the threaded rod, and the second sliding block is in spline connection with the spline shaft. The guide rod is arranged to be a threaded rod, friction force between the guide rod and the sliding block can be increased, and the first sliding block and the second sliding block can synchronously move up and down on the threaded rod and the spline shaft by rotating the threaded rod, so that the slump cylinder is fixed and stability in the process of lifting the slump cylinder is ensured.

Further, the automatic slump-retaining machine also comprises a motor, wherein the motor is fixed on the bottom plate at one side of the slump cylinder, and an output shaft of the motor is fixedly connected with one end of the threaded rod. The motor drives the threaded rod to rotate, so that the first sliding block and the second sliding block are driven to move up and down.

Further, the electric motor also comprises an iron sheet, wherein the iron sheet is fixed at the lower end of the handle, and an electromagnet which is used for attracting the iron sheet is fixedly arranged in the supporting rod and is electrically connected with the motor. When the motor rotates the drive threaded rod, the electromagnet is electrified, after concrete canning is completed, tension exists on the surface of concrete in the slump cone, when the slump cone is lifted, the required force is relatively large, the motor drives the threaded rod to rotate, the first sliding block and the second sliding block move upwards, at the moment, the electromagnet in the support rod is electrified to generate magnetism, the electromagnet is attracted with an iron sheet at the lower end of the handle, the clamping force between the handle and the support rod is increased, the slump cone is lifted, and meanwhile, shaking is not generated in the lifting process.

Further, two through holes which vertically penetrate through the supporting rod and are adjacent to each other are formed in the supporting rod, the clamping block comprises a spring and steel balls, one end of the spring is fixed on the inner wall of the supporting rod, the other end of the spring is fixed on the steel balls, a through hole for the steel balls to move left and right is formed in a partition plate between the two through holes, and a clamping groove which is clamped with the steel balls is formed in the clamping plate. When the slump cone is lifted under the action of the electromagnet, the magnetism of the electromagnet disappears when the motor stops rotating, the slump cone needs to be ensured not to drop downwards after the electromagnet is powered off, so that the steel balls can move left and right between the two through holes through the expansion and contraction of the spring, when the clamping plate stretches into the clamping block, the steel balls are extruded to the side close to the spring, when the clamping plate continues to stretch in, the spring extrudes the steel balls to the side far away from the spring, the clamping of the steel balls and the clamping grooves is realized, the slump cone is ensured not to drop after the electromagnet is powered off, and an individual only needs to lightly drag down to drag the slump cone.

Further, the folding device also comprises a circular ring, the inner diameter of the circular ring is consistent with the outer diameter of the slump cylinder at the upper edge of the handle, and the other end of the supporting rod is fixedly connected with the circular ring and fixes the circular ring right above the slump cylinder. The annular ring with the diameter of the slump cylinder at the upper edge of the handle is fixed above the slump cylinder through the support rod, when the sliding support rod moves towards the slump cylinder, the annular ring is fixed around the upper edge of the slump cylinder handle, and the auxiliary clamping blocks are clamped with the clamping plates, so that the slump cylinder is fixed.

Drawings

FIG. 1 is a schematic front view of a concrete slump testing apparatus according to the present utility model;

fig. 2 is an enlarged schematic view of the structure of the slump testing apparatus of fig. 1 at a position a according to the present utility model.

Reference numerals in the drawings of the specification include: slump tube 101, handle 102, iron piece 103, motor 201, threaded rod 202, first slider 203, spline shaft 204, second slider 205, first support rod 2061, second support rod 2062, ring 207, electromagnet 208, snap plate 301, snap groove 302, through hole 303, spring 304, steel ball 305, and spacer 306.

Detailed Description

The following is a further detailed description of the embodiments:

as shown in fig. 1-2, a concrete slump test apparatus has the following structure: the bottom plate is placed on the ground, the slump tube 101 is placed in the center of the upper surface of the bottom plate, a motor 201 is fixedly installed on the bottom plate on one side of the slump tube 101, an output shaft of the motor 201 is fixedly connected with one end of a threaded rod 202, a first sliding block 203 is connected on the threaded rod 202 in a threaded manner, the center of the slump tube 101 serves as a symmetrical point, a spline shaft 204 is fixedly installed on the bottom plate at the symmetrical position of the motor 201, a second sliding block 205 is connected on the spline shaft 204 in a spline manner, the outer surface of the first sliding block 203 is fixedly connected with one end of a first supporting rod 2061, the outer surface of the second sliding block 205 is fixedly connected with one end of a second supporting rod 2062, a circular ring 207 is fixedly arranged between the first supporting rod 2061 and the second supporting rod 2062, the circular ring 207 is fixedly arranged right side of the slump tube 101, the inner diameter of the circular ring 207 is identical to the outer diameter of the upper edge of a handle 102 of the slump tube 101, a clamping plate 301 is fixedly installed on the upper surface of the handle 102, a clamping plate 302 is formed in the clamping block 2061 and a second supporting rod 2062 is internally provided with a clamping block 301, the clamping block 304 can be fixedly connected with one end of the clamping block 304 in the clamping block is fixedly connected with one end of the first supporting rod 2061, the other end of the supporting rod is provided with a through hole 303 in the middle of the side of the steel ball 303, and the other end of the supporting rod is provided with a through hole 303 in the vertical through hole 303, and the other end 303 is provided with a through hole 303 in the middle of a through hole 303 is provided with a through hole 303 in the side, and has a through hole is provided in a through hole 303 is provided; the iron sheet 103 is fixedly arranged at the lower end of the handle 102, the iron sheet 103 can be fixed in the handle 102 or fixed on the lower end surface of the handle 102, meanwhile, the electromagnet 208 is fixedly arranged at the position, close to the circular ring 207, inside the first support rod 2061 and the second support rod 2062, the electromagnet 208 is electrically connected with the motor 201, when the motor 201 is started, the electromagnet 208 is electrified and has magnetism, the motor 201 drives the threaded rod 202 to rotate, the first sliding block 203 is driven to move up and down, and the first sliding block 203 drives the second sliding block 205 to move up and down on the spline shaft 204 through the first support rod 2061, the circular ring 207 and the second support rod 2062.

The specific implementation process is as follows:

when the slump of concrete needs to be tested, the slump cylinder 101 is placed on the bottom plate, the motor 201 is started to rotate positively, the first sliding block 203 and the second sliding block 205 are controlled to move downwards until the circular ring 207 moves downwards to the position of the upper edge of the handle 102 of the slump cylinder 101, at this time, the clamping plate 301 on the handle 102 is clamped with the clamping blocks in the first supporting rod 2061 and the second supporting rod 2062, the first sliding block 203, the second supporting rod 2062 and the circular ring 207 are driven to move downwards in the process of moving downwards the first sliding block 203 and the second sliding block 205, the clamping plate 301 presses the steel balls 305 when the clamping plate 301 stretches into the clamping block, under the action of the spring 304, the steel balls 305 are clamped with the steel balls 305 driven by the spring 304 when the clamping plate 301 stretches continuously, the clamping plate 301 and the clamping blocks are matched to realize the fixation of the slump cylinder 101, then the concrete is canned in the slump cylinder 101 according to a specified rule, the motor 203 is driven to move downwards, and the electromagnet 208 is driven to lift the iron plate 203 and the iron plate 101 when the clamping plate 301 is reversely rotated, and the iron plate 208 is driven to move upwards, and the magnetic iron plate 208 is lifted to be matched with the slump cylinder 101 when the iron plate is moved.

When the slump cylinder 101 needs to be replaced or removed for cleaning, the slump cylinder 101 can be removed from the device only by downwards dragging the slump cylinder 101 by a worker, the whole testing device is not required to be moved, and when the slump cylinder 101 is damaged, the slump cylinder 101 only needs to be replaced, the whole testing device is not required to be replaced, and resources are saved.

The foregoing is merely exemplary embodiments of the present utility model, and specific structures and features that are well known in the art are not described in detail herein. It should be noted that modifications and improvements can be made by those skilled in the art without departing from the structure of the present utility model, and these should also be considered as the scope of the present utility model, which does not affect the effect of the implementation of the present utility model and the utility of the patent. The protection scope of the present application shall be subject to the content of the claims, and the description of the specific embodiments and the like in the specification can be used for explaining the content of the claims.

Claims (6)

1. The utility model provides a concrete slump testing arrangement, includes slump section of thick bamboo, handle and bottom plate, its characterized in that: guide rods are vertically and fixedly arranged on bottom plates on two opposite sides of the slump cylinder, sliding blocks are sleeved on the guide rods, the outer surfaces of the sliding blocks are fixedly connected with one end of a supporting rod, clamping plates are vertically and fixedly arranged on the handles, and clamping blocks which are clamped with the clamping plates are arranged inside the supporting rod.

2. The concrete slump test apparatus of claim 1, wherein: the guide rod comprises a threaded rod and a spline shaft, the sliding blocks comprise a first sliding block and a second sliding block, the first sliding block is in threaded connection with the threaded rod, and the second sliding block is in spline connection with the spline shaft.

3. The concrete slump test apparatus of claim 2, wherein: the automatic slump-retaining machine further comprises a motor, wherein the motor is fixed on the bottom plate on one side of the slump cylinder, and an output shaft of the motor is fixedly connected with one end of the threaded rod.

4. A concrete slump test apparatus according to claim 3, wherein: the electric motor is characterized by further comprising an iron sheet, wherein the iron sheet is fixed at the lower end of the handle, and an electromagnet which is used for attracting the iron sheet is fixedly arranged in the supporting rod and is electrically connected with the motor.

5. The concrete slump test apparatus of claim 1, wherein: two through holes which vertically penetrate through the support rod and are adjacent to each other are formed in the support rod, the clamping block comprises a spring and steel balls, one end of the spring is fixed on the inner wall of the support rod, the other end of the spring is fixed on the steel balls, a through hole for the steel balls to move left and right is formed in a partition plate between the two through holes, and a clamping groove which is clamped with the steel balls is formed in the clamping plate.

6. The concrete slump test apparatus of claim 1, wherein: the inner diameter of the circular ring is consistent with the outer diameter of the slump cylinder at the upper edge of the handle, and the other end of the supporting rod is fixedly connected with the circular ring and fixes the circular ring right above the slump cylinder.