Mortar in-mold injection device

By designing an injection device for mortar sample mold, the combination of rectangular tube part and tapered tube part is used to solve the problem that bubbles are difficult to eliminate and mold release agents are mixed in polymer modified mortar molding, achieving efficient Mortar injection and sample quality improvement.

CN222222996UActive Publication Date: 2024-12-24ORIENTAL YUHONG SAND POWDER TECH GRP CO LTD
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Patent Information

Application Number
CN202420050870.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-01-09
Publication Date
2024-12-24
Estimated Expiration
2034-01-09

AI Technical Summary

Technical Problem

During the molding process of polymer modified mortar, it is difficult to eliminate the introduced holes through traditional insertion and vibration methods, and small test blocks are prone to mixing the release agent during demolding, which affects the authenticity of the test data. Sex and demolding effect.

Method used

It provides a mortar mold injection device, including a syringe body and a discharge member, the discharge member has a rectangular tube portion, and the width is matched with the mold cavity, so that the mortar material can be injected at one time, reduce the generation of bubbles, and passes through the tapered tube portion and The piston rod is designed to avoid repeated insertion and air entering.

Benefits of technology

Bubble-free injection mortar is achieved, which reduces the infusion of mold release agent, improves the quality and preparation efficiency of the sample, and ensures the authenticity of the test data.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides an injection device for injecting mortar into a mold, which relates to the technical field of molding of mortar test pieces and is used for injecting mortar materials into a mold cavity of a mortar sample mold. The discharging component is arranged at one end of the injector body and comprises a rectangular pipe part, an opening is formed in the end, away from the injector body, of the rectangular pipe part, and the width of the rectangular pipe part is matched with that of the mold cavity, so that the rectangular pipe part can be inserted into the mold cavity, and the two sides of the rectangular pipe part are close to the two side walls of the mold cavity; the problems that in the prior art, when a mortar sample mold is filled with mortar materials, due to the fact that the viscosity of the mortar materials is large, if traditional repeated filling is adopted, many bubbles can be introduced, and the bubbles are difficult to eliminate in a traditional inserting, tamping and vibrating mode are solved.
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Description

Technical Field

[0001] The utility model belongs to the technical field of mortar specimen molding, and more specifically relates to a mortar mold injection device. Background Art

[0002] In mortar products or research tests, a 25mm×25mm×280mm or 40mm×40mm×160mm triple mortar sample mold is often used to prepare drying shrinkage samples of polymer-modified mortar. The mortar sample mold has three mold cavities arranged side by side. Unlike the shrinkage test blocks for preparing cement mortar, polymer-modified mortar has high viscosity, and the holes introduced by multiple fillings during the molding process are not easy to eliminate by tamping and vibration. Secondly, especially for 25mm×25mm×280mm test blocks, due to the small width and height of the test blocks, multiple tamping of the spatula or knife in the mold can easily cause repeated friction between the polymer-modified mortar and the release agent on the inner surface of the mold, and part of the release agent is mixed into the mortar, affecting the authenticity of the test block test data, and also causing the isolation effect of the release agent to fail, making subsequent demolding difficult. Utility Model Content

[0003] The purpose of the utility model is to provide a mortar mold injection device to address the deficiencies in the prior art, so as to solve the problem that when filling mortar materials in a mortar sample mold in the prior art, due to the high viscosity of the mortar materials, more bubbles will be introduced if traditional multiple fillings are adopted, and the bubbles are difficult to eliminate by traditional tamping and vibration methods.

[0004] In order to achieve the above-mentioned purpose, the utility model provides a mortar injection device for injecting mortar material into a mold cavity of a mortar sample mold, comprising:

[0005] Syringe body;

[0006] A discharge component is arranged at one end of the syringe body, and the discharge component includes a rectangular tube portion. An opening is provided at one end of the rectangular tube portion away from the syringe body. The width of the rectangular tube portion matches the width of the mold cavity so that the rectangular tube portion can be inserted into the mold cavity and the two sides of the rectangular tube portion are close to the two side walls of the mold cavity.

[0007] Optionally, the syringe body comprises:

[0008] A straight cylindrical component, one end of which is open to form a material inlet and outlet;

[0009] A piston movably disposed in the straight tube member;

[0010] A piston rod, one end of which is connected to the piston, and the other end of which extends outward from the other end of the straight tube component to form a protruding portion;

[0011] The operating part is arranged on the extending part.

[0012] Optionally, the discharge component also includes a tapered tube portion, one end of which is connected to the rectangular tube portion, and the other end of which is detachably connected to the one end of the straight tube portion, and the tapered tube portion tapers from the other end to one end.

[0013] Optionally, a limiting portion is provided at the other end of the straight tube component, and a through hole for accommodating the piston rod to movably pass through is provided in the middle of the limiting portion.

[0014] Optionally, a wedge-shaped portion is provided at one end of the rectangular tube portion away from the syringe body, and the opening is formed on the inclined surface of the wedge-shaped portion.

[0015] Optionally, the piston comprises a support portion and a flexible portion arranged on one side of the support portion, and the other side of the support portion is detachably connected to the piston rod.

[0016] Optionally, the axis of the through hole is colinear with the axis of the straight tube component, and the aperture of the through hole matches the outer diameter of the piston rod.

[0017] Optionally, the limiting portion is detachably connected to the straight tube component.

[0018] Optionally, the straight barrel component is made of plastic or stainless steel.

[0019] Optionally, the material of the discharging component is plastic or stainless steel.

[0020] The utility model provides a mortar injection device, which has the following beneficial effects: the mortar injection device comprises an injector body and a discharge component, and can inject mortar material into the mold cavity of a mortar test mold in an injection manner; and the discharge component comprises a rectangular tube portion, and during the injection process, the mortar material flows out through an opening on the rectangular tube portion, and because the width of the rectangular tube portion matches the width of the mold cavity, the rectangular tube portion can be inserted into the mold cavity during injection and the two sides of the rectangular tube portion are close to the two side walls of the mold cavity, so that the mortar material flowing out from the opening on the rectangular tube portion can fill the mold cavity from one end to the other end of the mold cavity in one time, is not easy to generate bubbles, and does not need repeated tamping or vibration; it can reduce bubbles and will not cause the release agent to fall off due to repeated tamping of materials in the traditional treatment method, thereby improving the quality of the sample and the preparation efficiency of the sample.

[0021] Other features and advantages of the present invention will be described in detail in the subsequent specific implementation section. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The above and other objects, features and advantages of the present invention will become more apparent through a more detailed description of exemplary embodiments of the present invention in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments of the present invention.

[0023] Figure 1 A schematic structural diagram of a mortar injection device into a mold according to an embodiment of the utility model is shown.

[0024] Figure 2 A schematic structural diagram of a discharge component of a mortar mold injection device according to an embodiment of the utility model is shown.

[0025] Description of reference numerals:

[0026] 1. rectangular tube part; 2. opening; 3. straight tube part; 4. piston rod; 5. operating part; 6. tapered tube part; 7. first connecting part; 8. limiting part; 9. supporting part; 10. flexible part. DETAILED DESCRIPTION

[0027] The preferred embodiments of the present invention will be described in more detail below. Although the preferred embodiments of the present invention are described below, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to make the present invention more thorough and complete, and to fully convey the scope of the present invention to those skilled in the art.

[0028] like Figure 1 and Figure 2 As shown, the utility model provides a mortar injection device for injecting mortar material into a mold cavity of a mortar sample mold, comprising:

[0029] Syringe body;

[0030] The discharge component is arranged at one end of the syringe body, and the discharge component includes a rectangular tube portion 1. An opening 2 is arranged at the end of the rectangular tube portion 1 away from the syringe body. The width of the rectangular tube portion 1 matches the width of the mold cavity so that the rectangular tube portion 1 can be inserted into the mold cavity and the two sides of the rectangular tube portion 1 are close to the two side walls of the mold cavity.

[0031] Specifically, in order to solve the problem in the prior art that when filling mortar materials in a mortar sample mold, due to the high viscosity of the mortar materials, if the traditional multiple filling is adopted, more bubbles will be introduced, and the bubbles are difficult to be eliminated by the traditional tamping and vibration methods; the mortar injection device provided by the utility model has an injector body and a discharge component, which can inject the mortar material into the mold cavity of the mortar test mold in an injection manner; and the discharge component has a rectangular tube portion 1. During the injection process, the mortar material flows out through the opening 2 on the rectangular tube portion 1. Since the width of the rectangular tube portion 1 matches the width of the mold cavity, the rectangular tube portion 1 can be inserted into the mold cavity during injection and make the two sides of the rectangular tube portion 1 close to the two side walls of the mold cavity, so that the mortar material flowing out from the opening 2 on the rectangular tube portion 1 can fill the mold cavity from one end to the other end of the mold cavity in one time, it is not easy to generate bubbles, and there is no need for repeated tamping or vibration; it can reduce bubbles and will not cause the release agent to fall off due to repeated tamping of materials in the traditional treatment method, thereby improving the quality of the sample and the preparation efficiency of the sample.

[0032] Optionally, the syringe body comprises:

[0033] A straight cylindrical component 3, one end of which is open to form a material inlet and outlet;

[0034] A piston is movably disposed in the straight tube member 3;

[0035] A piston rod 4, one end of which is connected to the piston, and the other end of which extends outward from the other end of the straight tube member 3 to form an extension portion;

[0036] The operating part 5 is arranged on the extending part.

[0037] Specifically, the straight barrel component 3 serves as the barrel of the syringe body, and one end of the straight barrel component 3 is open to form a material inlet and outlet, and the mortar material enters and exits from the material inlet and outlet. Compared with the traditional method of removing the piston rod 4 and the piston, the mortar material is loaded from the other end of the straight barrel component 3, and then the piston and the piston rod 4 are loaded. Since the mortar is a paste-like material and its fluidity cannot be compared with that of a liquid, there must be air between the mortar and the piston that cannot be discharged. The syringe body sucks in and ejects the mortar material from the material inlet and outlet, avoiding the problem of a large amount of air entering and air being unable to be discharged due to the material being loaded from the other end of the straight barrel component 3.

[0038] In this embodiment, the operating portion 5 is a rod vertically connected to the extending portion.

[0039] Optionally, the discharge component also includes a tapered tube portion 6, one end of which is connected to the rectangular tube portion 1, and the other end of which is detachably connected to one end of the straight tube portion 3, and the tapered tube portion 6 tapers from the other end to one end.

[0040] Specifically, the tapered tube portion 6 is detachably connected to the straight cylinder component 3. When the straight cylinder component 3 sucks in the mortar material, the discharge component is removed. After the mortar material is sucked in, the discharge component is installed again. By pushing the piston rod 4 to move the piston, the mortar material can be moved forward and the air in the front can be gradually discharged. At the same time, the detachable discharge component is convenient for cleaning and flushing of the device.

[0041] In this embodiment, if Figure 2 As shown, the end of the tapered tube portion 6 of the discharge component away from the rectangular tube portion 1 is provided with a cylindrical first connecting portion 7, the first connecting portion 7 is provided with an internal thread, one end of the straight tube component 3 is provided with an external thread, and the first connecting portion 7 is sleeved on one end of the straight tube component 3 and threadedly connected to the straight tube component 3.

[0042] Optionally, a limiting portion 8 is disposed at the other end of the straight tube component 3 , and a through hole for accommodating the piston rod 4 to movably pass through is disposed in the middle of the limiting portion 8 .

[0043] Specifically, the setting of the limiting portion 8 can prevent the piston from being removed from the end of the straight tube portion away from the discharge component, and can avoid misoperation, and the mortar material can be loaded from the other end of the straight tube component 3.

[0044] Optionally, a wedge-shaped portion is provided at one end of the rectangular tube portion 1 away from the syringe body, and an opening 2 is formed on the inclined surface of the wedge-shaped portion.

[0045] Specifically, the wedge-shaped portion can be understood as the outer end of the rectangular tube portion 1 being cut by a virtual plane that forms an angle with the surface of one side of the rectangular tube portion 1. The outer end of the rectangular tube portion 1 after cutting forms a wedge-shaped portion, and the opening 2 is naturally formed on the cutting plane of the wedge-shaped portion, that is, the inclined plane. The area of ​​the opening 2 is larger than the internal area of ​​the vertical cross-section of the rectangular tube portion 1, which facilitates the extrusion of mortar material with a square flow trend.

[0046] Optionally, the piston includes a support portion 9 and a flexible portion 10 disposed on one side of the support portion 9 , and the other side of the support portion 9 is detachably connected to the piston rod 4 .

[0047] Specifically, the flexible portion 10 is disposed on the supporting portion 9 , and the flexible portion 10 cooperates with the inner circumference of the straight tube component 3 , and can push the mortar material in the straight tube component 3 toward the discharging component, thereby discharging the mortar material from the opening 2 .

[0048] In this embodiment, the material of the flexible portion 10 is rubber.

[0049] Optionally, the axis of the through hole is colinear with the axis of the straight tube component 3 , and the aperture of the through hole matches the outer diameter of the piston rod 4 .

[0050] Specifically, the axis of the through hole is colinear with the axis of the straight tube component 3, and the aperture of the through hole is matched with the outer diameter of the piston rod 4, so that the through hole can form a guiding effect on the piston rod 4.

[0051] Optionally, the limiting portion 8 is detachably connected to the straight tube component 3 .

[0052] Specifically, the limiting portion 8 is detachably connected to the straight tube portion, which facilitates the disassembly of the limiting portion 8, and further facilitates the disassembly of the piston and the piston rod 4, and is convenient for cleaning and flushing.

[0053] In this embodiment, a cylindrical second connection portion is provided at one end of the limiting portion 8, the second connection portion is provided with an internal thread, and an external thread is provided at the other end of the straight tube component 3. The limiting portion 8 is threadedly connected to the straight tube component 3 through the second connection portion.

[0054] Optionally, the straight tube component 3 is made of plastic or stainless steel.

[0055] Optionally, the material of the discharge component is plastic or stainless steel.

[0056] In summary, when the mortar mold injection device provided by the utility model is used, the discharge component is removed, the stirred freshly mixed mortar material is loaded through the material inlet and outlet of the straight cylinder component 3, and then the discharge component is installed on the straight cylinder component 3, and the piston rod 4 is pushed to make the piston move forward to expel the air in the straight cylinder component 3 and the discharge component, until the full mortar material is squeezed out from the opening 2; the mortar mold injection device is held by hand to extend the rectangular tube 1 into the mold cavity at a certain angle to the bottom surface of the mold cavity, and the full mortar material is slowly squeezed out from one end of the mortar sample mold at a suitable angle while slowly moving toward the other end of the mortar sample mold to achieve one-time filling of the mold cavity space; at the end of the other end of the mortar sample mold, a small-sized spatula or knife can be used to scrape the mortar material flat to fill the dead corner space of the mold cavity.

[0057] The above embodiments of the present invention have been described, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments.

Claims

1. A mortar injection device for injecting mortar material into a mold cavity of a mortar sample mold, characterized in that: include: Syringe body; a discharge component, arranged at one end of the syringe body, the discharge component comprising a rectangular tube portion, an end of the rectangular tube portion away from the syringe body being provided with an opening, the width of the rectangular tube portion being matched with the width of the mold cavity, so that the rectangular tube portion can be inserted into the mold cavity and the two sides of the rectangular tube portion are close to the two side walls of the mold cavity; A wedge-shaped portion is provided at one end of the rectangular tube portion away from the syringe body, and the opening is formed on the inclined surface of the wedge-shaped portion.

2. The mortar injection device according to claim 1, characterized in that: The syringe body comprises: A straight cylindrical component, one end of which is open to form a material inlet and outlet; A piston movably disposed in the straight tube member; A piston rod, one end of which is connected to the piston, and the other end of which extends outward from the other end of the straight tube component to form a protruding portion; The operating part is arranged on the extending part.

3. The mortar injection device according to claim 2, characterized in that: The discharge component also includes a tapered tube portion, one end of which is connected to the rectangular tube portion, and the other end of which is detachably connected to the one end of the straight tube portion, and the tapered tube portion tapers from the other end to the one end.

4. The mortar injection device according to claim 2, characterized in that: The other end of the straight tube component is provided with a limiting portion, and the middle portion of the limiting portion is provided with a through hole for accommodating the piston rod to movably pass through.

5. The mortar injection device according to claim 2, characterized in that: The piston comprises a support portion and a flexible portion arranged on one side of the support portion, and the other side of the support portion is detachably connected to the piston rod.

6. The mortar injection device according to claim 4, characterized in that: The axis of the through hole is colinear with the axis of the straight tube component, and the aperture of the through hole matches the outer diameter of the piston rod.

7. The mortar injection device according to claim 4, characterized in that: The limiting portion is detachably connected to the straight tube component.

8. The mortar injection device according to claim 2, characterized in that: The straight tube component is made of plastic or stainless steel.

9. The mortar injection device according to claim 1, characterized in that: The material of the discharging component is plastic or stainless steel.