A new type of admixture water-reducing agent compound tank

Abstract

The utility model discloses a novel admixture water reducing agent compound tank relates to admixture water reducing agent compound tank technical field, including jar body, support foot, inject valve mouth and discharge valve mouth, the number of support foot is four, and even fixedly connected in jar body lower surface a round, inject valve mouth fixedly connected in jar body upper end left end, just with jar body intercommunication. The utility model discloses a jar body, support foot, inject valve mouth, discharge valve mouth, liquid inlet, stirring mechanism, stirring shaft, motor, stirring oar, segmented blanking device, linkage assembly, worm, protective cover, connecting rod, worm wheel, blanking assembly, hopper, rotating rod, rubber cylinder, material taking groove and sealing cover's cooperation use have been set up, have realized admixture powder uniform segmented blanking and mother liquor high -efficient mixing, have significantly promoted the effect of compound mixing efficiency and finished product water reducing agent's mixing uniformity.

Description

Technical Field

[0001] This utility model relates to the technical field of admixture and water-reducing agent compounding tanks, specifically a novel admixture and water-reducing agent compounding tank. Background Technology

[0002] Admixtures are key materials for improving the workability and strength of concrete. Their preparation requires a compounding process to mix water-reducing agent mother liquor, admixture powder, and various additives in a specific ratio. The admixture compounding tank is the core equipment for realizing this process, and it directly determines the uniformity, stability, and performance of the final water-reducing agent product. It is of great significance for ensuring the quality and construction efficiency of concrete projects.

[0003] However, while existing admixture and water-reducing agent compounding tanks can meet basic mixing requirements, in the process of feeding admixture powder or other powdery or granular materials into the water-reducing agent mother liquor inside the tank, the powder itself has a certain degree of agglomeration, and the feeding is too concentrated. After entering the mother liquor, the powder cannot disperse quickly and is very easy to accumulate and form clumps in the liquid. These clumps not only prolong the overall mixing time and reduce the compounding efficiency, but may also lead to uneven mixing of the various components of the water-reducing agent, affecting the performance stability of the final product. Summary of the Invention

[0004] To address the problems mentioned in the background art, the purpose of this utility model is to provide a novel admixture and water-reducing agent compounding tank. This tank offers advantages such as uniform, segmented feeding of admixture powder and efficient mixing with the mother liquor, significantly improving compounding efficiency and the uniformity of the finished water-reducing agent mixture. It improves or solves, to some extent, the problems of existing admixture and water-reducing agent compounding tanks. While these tanks can meet basic mixing requirements, in the feeding stage of admixture powder or other powdery or granular materials, the powder is added to the water-reducing agent mother liquor within the tank. Due to the inherent agglomeration properties of the powder and its concentrated feeding, the powder cannot disperse quickly after entering the mother liquor, easily accumulating and forming clumps. These clumps not only prolong the overall mixing time and reduce compounding efficiency but can also lead to uneven mixing of the water-reducing agent components, affecting the performance stability of the final product.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a novel admixture water-reducing agent compounding tank, comprising a tank body, support legs, an injection valve port, and a discharge valve port. The support legs are four in number and are evenly and fixedly connected to the lower surface of the tank body around its circumference. The injection valve port is fixedly connected to the upper left end of the tank body and communicates with it. The discharge valve port is fixedly connected to the lower right end of the tank body and communicates with it. A liquid inlet is fixedly connected to the front side of the top of the tank body and communicates with it. A stirring mechanism is installed inside the tank body, and a segmented feeding device is installed at the top of the tank body.

[0006] As a preferred embodiment of this utility model, the stirring mechanism includes a stirring shaft, a motor, and stirring paddles. The stirring shaft is located at the center of the tank and extends out of the tank at both the upper and lower ends and is rotatably connected to the tank. The motor is fixedly connected to the lower end of the stirring shaft and is fixedly connected to the lower surface of the tank. The stirring paddles are a plurality of paddles, which are evenly fitted on the surface of the stirring shaft and fixedly connected to the stirring shaft.

[0007] As a preferred embodiment of the present invention, the segmented feeding device includes a linkage component and a feeding component. The linkage component is disposed at the top of the stirring shaft, and there are two feeding components, which are respectively disposed on the left and right sides of the linkage component.

[0008] In a preferred embodiment of this invention, the linkage assembly includes a worm gear, a protective cover, a connecting rod, and a worm wheel. The worm gear is fixedly connected to the top of the stirring shaft and is concentric with the stirring shaft. The protective cover is sleeved on the outside of the worm gear, and its lower side is fixedly connected to the upper surface of the tank. The connecting rod is located inside the front end of the protective cover, and both its left and right ends extend out of the protective cover and are rotatably connected to it. The worm wheel is sleeved on the surface of the connecting rod, fixedly connected to it, and meshes with the worm gear.

[0009] In a preferred embodiment of this invention, the feeding assembly includes a hopper, rotating rods, rubber cylinders, and feeding slots. Two hoppers are respectively located on the left and right sides of the top of the tank body, with their bottom ends extending into the tank body and fixedly connected to and communicating with it. Two rotating rods are respectively located at the lower ends inside the two hoppers, with their left and right ends extending out of the hoppers and rotatably connected to them. The ends of the two rotating rods that are close to each other are fixedly connected to the left and right ends of the connecting rod, and are concentric. Two rubber cylinders are respectively fitted onto the surfaces of the two rotating rods and fixedly connected to them. Four feeding slots are provided, located on the upper and lower sides of the two rubber cylinders.

[0010] In a preferred embodiment of this invention, the material receiving trough corresponds to the outlet position at the bottom of the hopper.

[0011] As a preferred embodiment of this utility model, the upper surface of the liquid inlet is provided with a thread, and a sealing cap is fitted onto the upper surface of the liquid inlet, the sealing cap being threadedly connected to the liquid inlet via the thread.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. By setting up a tank, supporting feet, injection valve port, discharge valve port, liquid inlet port, stirring mechanism, stirring shaft, motor, stirring paddle, segmented feeding device, linkage component, worm gear, protective cover, connecting rod, worm wheel, feeding component, hopper, rotating rod, rubber cylinder, feeding trough and sealing cover, this utility model improves or solves to a certain extent the problem of existing admixture water-reducing agent compounding tanks. Although they can meet the basic mixing requirements, in the feeding stage of admixture powder or other powdery or granular materials, when the admixture powder is put into the water-reducing agent mother liquor in the tank, due to the agglomeration of the powder itself and the excessive concentration during feeding, the powder cannot be quickly dispersed after entering the mother liquor and is very easy to accumulate and form lumps in the liquid. These lumps will not only prolong the overall mixing time and reduce the compounding efficiency, but may even lead to uneven mixing of the various components of the water-reducing agent, affecting the performance stability of the final product.

[0013] 2. This utility model sets up a stirring mechanism, which drives the stirring shaft of the motor to rotate multiple sets of evenly distributed stirring paddles. This can stir the water-reducing agent mother liquor in the tank, providing a flowing liquid environment for powder dispersion and accelerating the fusion of powder and mother liquor, effectively shortening the mixing time and improving the compounding efficiency.

[0014] 3. This utility model, by setting up a segmented feeding device and linking it with the stirring shaft through the linkage component, combined with the double feeding component and the quantitative feeding structure, realizes the dispersed feeding of powder in small amounts and multiple times, avoiding the powder from accumulating and clumping. At the same time, the protective cover ensures the stable operation of the linkage component, and the sealing cap of the liquid inlet improves the sealing of the tank, further ensuring the quality of compounding. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the compounding tank of this utility model; Figure 2 This is a cross-sectional three-dimensional structural diagram of the compounding tank; Figure 3 This is a schematic diagram of the exploded three-dimensional structure of the segmented feeding device. Figure 4 This is a schematic diagram of the cross-sectional plane structure of the feeding assembly.

[0016] In the diagram: 1. Tank body; 11. Support leg; 12. Injection valve port; 13. Discharge valve port; 2. Liquid inlet pipe port; 3. Stirring mechanism; 31. Stirring shaft; 32. Motor; 33. Stirring paddle; 4. Segmented feeding device; 41. Linkage assembly; 411. Worm gear; 412. Protective cover; 413. Connecting rod; 414. Worm wheel; 42. Feeding assembly; 421. Hopper; 422. Rotating rod; 423. Rubber cylinder; 424. Feeding trough; 5. Sealing cover. Detailed Implementation

[0017] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0018] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0019] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0020] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0021] Example 1, referring to Figure 1-4 This is the first embodiment of the present invention, which provides a novel admixture water-reducing agent compounding tank, including a tank body 1, support legs 11, an injection valve port 12 and a discharge valve port 13. There are four support legs 11, which are evenly and fixedly connected to the lower surface of the tank body 1. The injection valve port 12 is fixedly connected to the upper left end of the tank body 1 and communicates with the tank body 1. The discharge valve port 13 is fixedly connected to the lower right end of the tank body 1 and communicates with the tank body 1. A liquid inlet 2 is fixedly connected to the front side of the top of the tank body 1 and communicates with the tank body 1. A stirring mechanism 3 is provided inside the tank body 1, and a segmented feeding device 4 is provided at the top of the tank body 1.

[0022] Specifically, this new type of admixture water-reducing agent compounding tank effectively solves the problem of easy agglomeration of powder materials in traditional compounding tanks by setting a segmented feeding device 4 at the top of the tank body 1 and combining it with an internal stirring mechanism 3. It realizes segmented feeding of powder materials and efficient mixing of mother liquor, significantly improving compounding efficiency and the mixing uniformity of finished water-reducing agent. At the same time, four evenly distributed support feet 11 enhance the placement stability of the tank body 1. The overall structural design is reasonable and highly practical.

[0023] Furthermore, during use, the water-reducing agent mother liquor and other liquid additives are first injected through the injection valve port 12 and the liquid inlet port 2, respectively. Then, the powder is dispersed into the tank using the dispersion feeding device. Subsequently, the stirring mechanism 3 is started to stir and mix the materials in the tank. After the mixing is completed, the finished product is discharged through the discharge valve port 13. All components work together to complete the water-reducing agent compounding operation.

[0024] Example 2, the second embodiment of this utility model, the stirring mechanism 3 includes a stirring shaft 31, a motor 32 and stirring paddles 33. The stirring shaft 31 is located at the center of the tank 1, and both its upper and lower ends extend out of the tank 1 and are rotatably connected to the tank 1. The motor 32 is fixedly connected to the lower end of the stirring shaft 31 and is fixedly connected to the lower surface of the tank 1. There are several stirring paddles 33, which are evenly sleeved on the surface of the stirring shaft 31 and fixedly connected to the stirring shaft 31.

[0025] Specifically, by setting up a stirring mechanism 3, the motor 32 drives the stirring shaft 31 to rotate multiple sets of evenly distributed stirring paddles 33, which can stir the water-reducing agent mother liquor in the tank 1, providing a flowing liquid environment for powder dispersion and accelerating the fusion of powder and mother liquor, effectively shortening the mixing time and improving the compounding efficiency.

[0026] Furthermore, when in use, the motor 32 is started, and the output shaft of the motor 32 drives the fixed stirring shaft 31 to rotate inside the tank 1. The stirring shaft 31 synchronously drives the stirring paddles 33, which are evenly distributed on the surface, to rotate. During the rotation, the stirring paddles 33 generate shearing and tumbling action on the water-reducing agent mother liquor in the tank 1, so that the mother liquor forms a dynamic environment of continuous flow. At the same time, it provides sufficient contact and mixing conditions for the powder to be added in a dispersed manner. Moreover, the design of the evenly distributed stirring paddles 33 can avoid the problem of uneven mixing caused by local inadequate mixing.

[0027] Example 3, the third embodiment of this utility model, the segmented feeding device 4 includes a linkage component 41 and a feeding component 42. The linkage component 41 is disposed at the top of the stirring shaft 31, and there are two feeding components 42, which are respectively disposed on the left and right sides of the linkage component 41. The linkage assembly 41 includes a worm gear 411, a protective cover 412, a connecting rod 413, and a worm wheel 414. The worm gear 411 is fixedly connected to the top of the stirring shaft 31 and is concentric with the stirring shaft 31. The protective cover 412 is sleeved on the outside of the worm gear 411 and its lower side is fixedly connected to the upper surface of the tank body 1. The connecting rod 413 is located inside the front end of the protective cover 412 and extends out of the protective cover 412 at both ends and is rotatably connected to the protective cover 412. The worm wheel 414 is sleeved on the surface of the connecting rod 413 and is fixedly connected to the connecting rod 413 and meshes with the worm gear 411. The feeding assembly 42 includes a hopper 421, a rotating rod 422, a rubber cylinder 423, and a feeding trough 424. The two hoppers 421 are respectively located on the left and right sides of the top of the tank body 1, and their bottom ends extend into the interior of the tank body 1 and are fixedly connected to and communicate with the tank body 1. The two rotating rods 422 are respectively located at the lower end of the interior of the two hoppers 421, and their left and right ends extend out of the hoppers 421 and are rotatably connected to the hoppers 421. The ends of the two rotating rods 422 that are close to each other are fixedly connected to the left and right ends of the connecting rod 413 and are concentric. The two rubber cylinders 423 are respectively sleeved on the surface of the two rotating rods 422 and are fixedly connected to the rotating rods 422. There are four feeding troughs 424, which are respectively opened on the upper and lower sides of the two rubber cylinders 423. The outlet position at the bottom of the material feeding trough 424 corresponds to that at the bottom of the hopper 421; The upper surface of the liquid inlet 2 is threaded, and a sealing cap 5 is fitted onto the upper surface of the liquid inlet 2. The sealing cap 5 is threadedly connected to the liquid inlet 2.

[0028] Specifically, by setting up a segmented feeding device 4, which is linked to the stirring shaft 31 via the linkage component 41, and combined with the double feeding component 42 and the quantitative feeding structure, the powder is fed in small amounts and multiple times in a dispersed manner, avoiding the powder from accumulating. At the same time, the protective cover 412 ensures the stable operation of the linkage components, and the sealing cover 5 of the liquid inlet 2 improves the sealing of the tank 1, further ensuring the quality of compounding.

[0029] Furthermore, when the stirring shaft 31 rotates, it drives the top worm gear 411 to rotate synchronously. The worm gear 411 drives the worm wheel 414 and the connecting rod 413 to rotate through meshing. The connecting rod 413 drives the rotating rods 422 at both ends to rotate inside the hopper 421. The rubber cylinder 423 on the surface of the rotating rod 422 rotates accordingly. When the feeding groove 424 on the rubber cylinder 423 is aligned with the bottom outlet of the hopper 421, it receives the powder. As the rotating rod 422 rotates, it quantitatively feeds the powder into the tank. The liquid inlet 2 is sealed and controlled by the sealing cap 5 when replenishing the liquid additive.

[0030] Working principle: During use, the pre-mixed water-reducing agent mother liquor is injected into the tank 1 through the injection valve 12. At the same time, the sealing cap 5 of the liquid inlet 2 is opened, and other liquid additives can be added according to the compounding requirements. After the addition is completed, the sealing cap 5 is tightened to ensure the airtightness of the tank 1. Then, the powdered or granular additives are poured into the two hoppers 421 of the segmented feeding device 4. The motor 32 of the stirring mechanism 3 is started. The motor 32 drives the stirring shaft 31 and the stirring paddle 33 on the surface to rotate in the tank 1, which initially stirs the mother liquor to form a flowing liquid environment. At the same time, the worm 411 at the top of the stirring shaft 31 rotates synchronously with the stirring shaft 31. Since the worm 411 is meshed with the worm wheel 414, the worm 411 drives the worm wheel 414 and the coaxial connecting rod. As the connecting rod 413 rotates, the rotating rods 422 at both ends of the connecting rod 413 rotate within the hopper 421. The rubber cylinders 423 on the surface of the rotating rods 422 rotate synchronously. The feeding slots 424 on the upper and lower sides of the rubber cylinders 423 align sequentially with the bottom outlet of the hopper 421. Each time they align, a fixed amount of powder is collected in the feeding slots 424. As the rotating rods 422 rotate, the powder is quantitatively fed into the mother liquor in the tank 1, avoiding the problem of agglomeration and clumping caused by a large amount of powder being fed in a concentrated manner. Finally, the dispersed powder is quickly mixed with the mother liquor under the continuous stirring action of the stirring paddle 33. After the mixing is completed, the discharge valve 13 can be opened to discharge the finished water-reducing agent. The whole process realizes the linkage between the dispersion of powder and the stirring of mother liquor, improving the compounding efficiency and the uniformity of mixing.

[0031] In summary, by using the tank body 1, support feet 11, injection valve port 12, discharge valve port 13, liquid inlet port 2, stirring mechanism 3, stirring shaft 31, motor 32, stirring paddle 33, segmented feeding device 4, linkage component 41, worm gear 411, protective cover 412, connecting rod 413, worm wheel 414, feeding component 42, hopper 421, rotating rod 422, rubber cylinder 423, material collection trough 424 and sealing cover 5 in combination, the uniform segmented feeding of admixture powder and efficient mixing with mother liquor are achieved, significantly improving the compounding mixing efficiency and the mixing uniformity of the finished water-reducing agent.

[0032] The injection valve 12, discharge valve 13, stirring paddle 33, motor 32, worm gear 414 and worm 411 used in this application can be additionally equipped with protective measures of common knowledge in this technical field under different usage environments, including but not limited to the following methods, such as protective covers for equipment protection, dustproof nets for equipment dust prevention, and sealing components or waterproof coatings for equipment waterproofing, which are commonly used by those skilled in the art.

[0033] It should be noted that the injection valve port 12, the discharge valve port 13, the stirring paddle 33, the motor 32, the worm gear 414, and the worm 411 are existing devices or equipment, or devices or equipment that can be implemented by existing technology. The power supply, connection method, usage method, power source, fixing method, installation method, control method, etc. of the equipment, as well as the materials of each accessory and the selection of various parameters are all common knowledge to those skilled in the art, and therefore will not be described in detail in this application document.

[0034] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape and proportion of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0035] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.

[0036] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0037] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A novel admixture water-reducing agent compounding tank, comprising a tank body (1), support legs (11), an injection valve port (12), and a discharge valve port (13), wherein the number of support legs (11) is four, and they are evenly and fixedly connected to the lower surface of the tank body (1) around the perimeter; the injection valve port (12) is fixedly connected to the upper left end of the tank body (1) and communicates with the tank body (1); and the discharge valve port (13) is fixedly connected to the lower right end of the tank body (1) and communicates with the tank body (1), characterized in that: The tank (1) has a liquid inlet (2) fixedly connected to the front of the top of the tank (1). The liquid inlet (2) is interconnected with the tank (1). The tank (1) is equipped with a stirring mechanism (3) inside. The tank (1) is equipped with a segmented feeding device (4) at the top of the tank (1).

2. The novel admixture water-reducing agent compounding tank according to claim 1, characterized in that: The stirring mechanism (3) includes a stirring shaft (31), a motor (32) and stirring paddles (33). The stirring shaft (31) is located at the center of the tank (1) and extends out of the tank (1) at both the upper and lower ends and is rotatably connected to the tank (1). The motor (32) is fixedly connected to the lower end of the stirring shaft (31) and is fixedly connected to the lower surface of the tank (1). There are several stirring paddles (33) that are evenly fitted on the surface of the stirring shaft (31) and fixedly connected to the stirring shaft (31).

3. A novel admixture and water-reducing agent compounding tank according to claim 2, characterized in that: The segmented feeding device (4) includes a linkage component (41) and a feeding component (42). The linkage component (41) is located at the top of the stirring shaft (31), and there are two feeding components (42), which are respectively located on the left and right sides of the linkage component (41).

4. A novel admixture and water-reducing agent compounding tank according to claim 3, characterized in that: The linkage assembly (41) includes a worm (411), a protective cover (412), a connecting rod (413), and a worm wheel (414). The worm (411) is fixedly connected to the top of the stirring shaft (31) and is concentric with the stirring shaft (31). The protective cover (412) is sleeved on the outside of the worm (411) and its lower side is fixedly connected to the upper surface of the tank (1). The connecting rod (413) is located inside the front end of the protective cover (412) and extends out of the protective cover (412) at both ends and is rotatably connected to the protective cover (412). The worm wheel (414) is sleeved on the surface of the connecting rod (413) and is fixedly connected to the connecting rod (413) and meshes with the worm (411).

5. A novel admixture and water-reducing agent compounding tank according to claim 4, characterized in that: The feeding assembly (42) includes a hopper (421), a rotating rod (422), a rubber cylinder (423), and a feeding trough (424). The two hoppers (421) are respectively located on the left and right sides of the top of the tank (1), and their bottom ends extend into the tank (1) and are fixedly connected to and communicate with the tank (1). The two rotating rods (422) are respectively located at the lower end of the two hoppers (421), and their left and right ends extend out of the hoppers (421) and are rotatably connected to the hoppers (421). The ends of the two rotating rods (422) that are close to each other are fixedly connected to the left and right ends of the connecting rod (413) and are concentric. The two rubber cylinders (423) are respectively sleeved on the surface of the two rotating rods (422) and fixedly connected to the rotating rods (422). The number of feeding troughs (424) is four, and they are respectively opened on the upper and lower sides of the two rubber cylinders (423).

6. A novel admixture and water-reducing agent compounding tank according to claim 5, characterized in that: The material feeding trough (424) corresponds to the outlet position at the bottom of the hopper (421).

7. A novel admixture and water-reducing agent compounding tank according to claim 1, characterized in that: The upper surface of the liquid inlet (2) is provided with threads, and a sealing cap (5) is fitted on the upper surface of the liquid inlet (2). The sealing cap (5) is threadedly connected to the liquid inlet (2) through threads.

Images