Type II expanding agent metering and proportioning device

Abstract

The utility model discloses a type II expanding agent metering and proportioning device which comprises a metering and proportioning barrel, an upper positioning seat is fixedly arranged at the bottom of the metering and proportioning barrel, a lower positioning seat covers the bottom of the upper positioning seat, and meanwhile, a lower barrel body is fixedly mounted at the bottom of the lower positioning seat; a metering and proportioning assembly is fixedly arranged on the circumferential side wall of the metering and proportioning cylinder and comprises a mounting seat fixedly arranged on the circumferential side wall of the metering and proportioning cylinder. According to the type II expanding agent metering and proportioning device, the weight of a liquid expanding agent in the metering and proportioning barrel is divided into three grades, and the weight ratio of the three grades in the metering and proportioning barrel is calibrated through three groups of sealing elements mounted on the outer side of a mounting seat; the time can be greatly saved; originally, the expanding agent needs to be weighed in several minutes before each disc of concrete is stirred, but now, the pre-quantified expanding agent can be directly used, so that the stirring period is shortened, and more prefabricated parts can be produced in unit time.

Description

Technical Field

[0001] This utility model relates to the field of metering and proportioning devices, specifically a type II expanding agent metering and proportioning device. Background Technology

[0002] Type II expansive agents are mainly used to compensate for shrinkage in concrete. Expansive agents are generally measured by weight. In concrete mixing plants and similar locations, high-precision electronic scales are used to weigh the expansive agent. For small construction sites, if electronic scales are unavailable, calibrated weighing scales can be used. For example, when mixing a batch of concrete (assuming a total concrete weight of 3000 kg), if the expansive agent dosage is 8%, then the weight of the expansive agent should be 3000 × 8% = 240 kg.

[0003] In the factory production of precast concrete components, when the product specifications and concrete mix proportions are completely fixed, the performance requirements of the concrete are the same for each batch of components produced. For example, when producing a batch of precast floor slabs with uniform dimensions for a specific building project, the strength grade and expansion performance requirements of the concrete are fixed. The quality and performance of raw materials (such as cement, sand and gravel) remain stable, and the production process parameters (such as mixing time and vibration method) remain unchanged. Therefore, the metering of the type II expansion agent added each time can be kept consistent.

[0004] The amount of Type II expansive agent added each time is consistent, and weighing is required each time. Weighing each time will lengthen the concrete mixing cycle. In large-scale concrete construction, such as in the production of standardized precast components, the demand for concrete is extremely large. If the expansive agent is weighed frequently, the mixing time of each batch of concrete will increase, thus affecting the overall construction progress. Utility Model Content

[0005] The purpose of this invention is to provide a type II expansion agent metering and proportioning device to solve the defects mentioned in the background art.

[0006] To achieve the above objectives, a type II expanding agent metering and proportioning device is provided, comprising a metering and proportioning cylinder. An upper positioning seat is fixedly disposed at the bottom of the metering and proportioning cylinder, and a lower positioning seat covers the bottom of the upper positioning seat. A lower cylinder body is fixedly installed at the bottom of the lower positioning seat. A metering and proportioning component is fixedly disposed on the circumferential side wall of the metering and proportioning cylinder. The metering and proportioning component includes a mounting seat fixedly disposed on the circumferential side wall of the metering and proportioning cylinder, and three sets of metering components are respectively disposed on the mounting seat. A screw hole is provided on the mounting seat, and a sealing hole is provided on the side wall of the metering and proportioning cylinder. A force-bearing seat is disposed at the end of the metering component, and a limit plate is welded to the bottom of the force-bearing seat. A screw post is fixedly installed at the bottom of the limit plate.

[0007] Preferably, a force-receiving groove is provided on the upper circumferential side wall of the metering and proportioning cylinder, and the cross-section of the force-receiving groove is arranged in a "U" shape.

[0008] Preferably, both the upper and lower positioning seats are arranged in a ring shape, and the upper and lower positioning seats are joined together and fixed by six sets of fixing bolts. At the same time, a sealing gasket is clamped and fixed between the upper and lower positioning seats.

[0009] Preferably, the mounting base has three sets of equally spaced screw holes, and each of the three sets of screw holes has a sealing hole at its end. The three sets of screw holes are sealed and blocked by three sets of sealing elements.

[0010] Preferably, the screw post is sized to match the screw hole, and a sealing seat is fixedly provided at the end of the screw post away from the limiting piece, with the sealing seat and the sealing hole having an interference fit.

[0011] Preferably, the threaded post is threaded inside the threaded hole, and the sealing seat is inserted inside the sealing hole, wherein the diameter of the sealing hole is smaller than the diameter of the sealing seat.

[0012] Preferably, the sealing seat has an intervention part fixedly provided at its end, and the intervention part is tapered.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This utility model divides the weight of the liquid expanding agent inside the metering and mixing cylinder into three grades, and the weight ratio of the three grades inside the metering and mixing cylinder is calibrated by three sets of sealing parts installed on the outside of the mounting base; this can greatly save time; originally, it took several minutes to weigh the expanding agent before each batch of concrete was mixed, but now a pre-quantitative amount of expanding agent can be used directly, which shortens the mixing cycle and allows more precast components to be produced per unit time.

[0015] 2. This utility model, by setting three sets of sealing holes on the bucket, can ensure that the mass of the expansive agent added to the concrete each time is basically the same; in the production of precast components, such precise dosage control is crucial to ensuring the quality stability of the components; for precast concrete beams with crack resistance requirements, a stable dosage of expansive agent can ensure that the beam expands uniformly during the solidification process, thereby effectively compensating for shrinkage, preventing the generation of cracks, and improving the durability and impermeability of the components. Attached Figure Description

[0016] Figure 1 This is a front view schematic diagram of the structure of this utility model;

[0017] Figure 2 for Figure 1 A bottom view;

[0018] Figure 3 for Figure 1 Top view;

[0019] Figure 4 This is a schematic diagram of the sealing element and its connection structure;

[0020] Figure 5 for Figure 4 Top view.

[0021] The following are the labeling elements in the diagram: 1. Metering and proportioning cylinder; 2. Force-receiving groove; 3. Upper positioning seat; 4. Sealing gasket; 5. Lower positioning seat; 6. Lower cylinder body; 7. Fixing bolt; 8. Metering and proportioning component; 80. Mounting seat; 81. Metering component; 811. Threaded hole; 8110. Sealing hole; 812. Sealing element; 8121. Force-receiving seat; 8122. Limiting plate; 8123. Threaded post; 8124. Sealing seat; 8125. Intervention part. Detailed Implementation

[0022] Please see Figure 1-5 This utility model provides a type II expansion agent metering and proportioning device, including a metering and proportioning cylinder 1. An upper positioning seat 3 is fixedly provided at the bottom of the metering and proportioning cylinder 1, and a lower positioning seat 5 is covered at the bottom of the upper positioning seat 3. At the same time, a lower cylinder body 6 is fixedly installed at the bottom of the lower positioning seat 5. A metering and proportioning component 8 is fixedly provided on the circumferential side wall of the metering and proportioning cylinder 1. The metering and proportioning component 8 includes a mounting seat 80 fixedly provided on the circumferential side wall of the metering and proportioning cylinder 1. Three sets of metering components 81 are respectively provided on the mounting seat 80. A screw hole 811 is provided on the mounting seat 80, and a sealing hole 8110 is provided on the side wall of the metering and proportioning cylinder 1. A force-bearing seat 8121 is provided at the end of the metering component 81. A limiting piece 8122 is welded to the bottom of the force-bearing seat 8121, and a screw post 8123 is fixedly installed at the bottom of the limiting piece 8122.

[0023] Working Principle: During the standardized precast component production process, when adding Type II expansive agent to concrete, and the amount added each time is consistent, the weight of the liquid expansive agent inside the metering cylinder 1 is divided into three levels using the precast capacity method. The weight ratio of the three levels inside the metering cylinder 1 is calibrated by three sets of sealing elements 812 installed on the outside of the mounting base 80. Utilizing the barrel effect principle, when the corresponding sealing element 812 is opened, the expansive agent inside the metering cylinder 1 flows out until the liquid level of the expansive agent inside the metering cylinder 1 reaches the bottom of the corresponding sealing hole 8110, thus completing the rapid metering of the liquid expansive agent inside the metering cylinder 1 without repeated weighing. This device is suitable for liquid expansive agents.

[0024] In the standardized production process of precast components, there is no need to weigh the expansion agent every time, which can save a lot of time. For precast component factories that produce in batches, time is money. For example, when producing precast concrete wall panels, it used to take several minutes to weigh the expansion agent before each batch of concrete was mixed. Now, a pre-quantitative amount of expansion agent can be used directly, which shortens the mixing cycle and allows more precast components to be produced per unit time.

[0025] The operator's workflow is simplified, reducing the complex operational steps caused by frequent weighing; this helps reduce the operator's workload, allowing them to focus more on other key production processes.

[0026] By setting three sets of sealing holes 8110 on the bucket, it can be ensured that the mass of expansive agent added to the concrete each time is basically the same. In the production of precast components, this precise dosage control is crucial to ensuring the quality stability of the components. For precast concrete beams with crack resistance requirements, a stable dosage of expansive agent can ensure that the beam expands uniformly during the solidification process, thereby effectively compensating for shrinkage, preventing the generation of cracks, and improving the durability and impermeability of the components.

[0027] It avoids the errors that may occur with manual weighing; manual weighing may be affected by various factors such as the operator's experience, condition, and the accuracy of the weighing equipment; by using a pre-quantitative metering and mixing cylinder 1, these potential human error factors can be eliminated, ensuring that the amount of expansion agent used in each batch of precast components meets the design requirements and improving the consistency of product quality.

[0028] A force-receiving groove 2 is provided on the upper circumferential side wall of the metering and proportioning cylinder 1, and the cross-section of the force-receiving groove 2 is set in the shape of a "U".

[0029] In a preferred embodiment, both the upper positioning seat 3 and the lower positioning seat 5 are arranged in a ring shape, and the upper positioning seat 3 and the lower positioning seat 5 are joined together and fixed by six sets of fixing bolts 7. At the same time, a sealing gasket 4 is clamped and fixed between the upper positioning seat 3 and the lower positioning seat 5.

[0030] The mounting base 80 has three sets of equally spaced screw holes 811, and each of the three sets of screw holes 811 has a sealing hole 8110 at its end. The three sets of screw holes 811 are sealed and blocked by three sets of sealing elements 812.

[0031] In a preferred embodiment, the screw post 8123 is adapted to the size of the screw hole 811, and a sealing seat 8124 is fixedly provided at the end of the screw post 8123 away from the limiting piece 8122, and the sealing seat 8124 is interference-fitted with the sealing hole 8110.

[0032] The threaded post 8123 is threaded into the threaded hole 811, and the sealing seat 8124 is inserted into the sealing hole 8110. At the same time, the diameter of the sealing hole 8110 is smaller than the diameter of the sealing seat 8124.

[0033] In a preferred embodiment, the end of the sealing seat 8124 is fixedly provided with an intervention portion 8125, and the intervention portion 8125 is tapered.

[0034] The intervention part 8125 is tapered, which makes it easier for the intervention part 8125 to pass through the screw hole 811 and be inserted into the sealing hole 8110. Since the sealing seat 8124 is interference-fitted with the sealing hole 8110, the rubber sealing seat 8124 can fully seal the sealing hole 8110 and prevent leakage.

Claims

1. A device for metering and proportioning a two-type expanding agent, comprising a metering and proportioning cartridge (1), characterized in that: The bottom of the metering and proportioning cylinder (1) is fixedly provided with an upper locating seat (3), the bottom of the upper locating seat (3) is covered with a lower locating seat (5), the bottom of the lower locating seat (5) is fixedly installed with a lower cylinder body (6), the circumferential sidewall of the metering and proportioning cylinder (1) is fixedly provided with a metering and proportioning assembly (8), the metering and proportioning assembly (8) comprises a mounting seat (80) fixedly arranged on the circumferential sidewall of the metering and proportioning cylinder (1), three groups of metering assemblies (81) are respectively arranged on the mounting seat (80), screwing holes (811) are formed in the mounting seat (80), sealing holes (8110) are formed in the sidewall of the metering and proportioning cylinder (1), the end of the metering assembly (81) is provided with a stress seat (8121), the bottom of the stress seat (8121) is welded with a limiting sheet (8122), and the bottom of the limiting sheet (8122) is fixedly installed with a screwing column (8123).

2. The dual dilator metering device of claim 1, wherein: The circumferential sidewall of the upper portion of the metering and proportioning cylinder (1) is provided with a stress groove (2), and the cross section of the stress groove (2) is arranged in a "concave" shape.

3. The dual dilator metering device of claim 1, wherein: The upper locating seat (3) and the lower locating seat (5) are both arranged in an annular shape, the upper locating seat (3) and the lower locating seat (5) are abutted together and are screw-fixed by six groups of fixing bolts (7), and the sealing gasket (4) is clamped and fixed between the upper locating seat (3) and the lower locating seat (5).

4. The dual dilator proportioning device of claim 1, wherein: The mounting seat (80) is uniformly provided with three groups of equidistantly distributed screwing holes (811), the end of each of the three groups of screwing holes (811) is provided with a sealing hole (8110), and the three groups of screwing holes (811) are respectively sealed by three groups of sealing members (812).

5. The dual dilator proportioning device of claim 1, wherein: The screwing column (8123) is matched with the screwing hole (811) in size, one end of the screwing column (8123) away from the limiting sheet (8122) is fixedly provided with a sealing seat (8124), and the sealing seat (8124) is in interference fit with the sealing hole (8110).

6. A dual dilator metering device as defined in claim 5, wherein: The screwing column (8123) is screwed in the screwing hole (811), the sealing seat (8124) is inserted in the sealing hole (8110), and the diameter of the sealing hole (8110) is smaller than the diameter of the sealing seat (8124).

7. A dual dilator metering device as defined in claim 6, wherein: The end of the sealing seat (8124) is fixedly provided with an intervention part (8125), and the intervention part (8125) is arranged in a conical shape.

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