Post-adding device for low-carbon Portland cement expanding agent

Abstract

The utility model relates to the technical field of cement expanding agent adding, in particular to a low-carbon Portland cement expanding agent post-adding device which comprises a material adding box serving as a main body of the low-carbon Portland cement expanding agent post-adding device. A discharging valve is arranged in the middle of the bottom of the feeding box in a penetrating manner; a rotating shaft penetrates through the middle of the top of the feeding box; a plurality of blades are fixedly arranged at the bottom of the rotating shaft. The low-carbon Portland cement expanding agent feeding device overcomes the defects in the prior art, by arranging the rotating shaft, the blades and the rotating handle, a user can directly lift the bagged low-carbon Portland cement expanding agent and place the bagged low-carbon Portland cement expanding agent on the top of the feeding box, then the rotating shaft can be rotated only by rotating the rotating handle, a bag body of the bagged low-carbon Portland cement expanding agent is cut open by the multiple blades, and the low-carbon Portland cement expanding agent can be fed into the feeding box. The automatic feeding device is simple and convenient to operate; by arranging the adjusting plate, the bent rod and the spring telescopic rod, a user only needs to pull the adjusting plate downwards, the bent rod can be driven to move downwards to dredge the discharging valve, and the shutdown and maintenance time caused by the discharging problem is shortened.

Description

Technical Field

[0001] The utility model relates to the technical field of cement expansion agent addition, in particular to a low-carbon silicate cement expansion agent post-addition device. Background Art

[0002] Low carbon silicate cement is an environmentally friendly building material. Low carbon silicate cement expansive agent is an additive used in low carbon silicate cement concrete to control the shrinkage of concrete and increase its volume. It can produce bubbles during the cement hydration reaction, thereby forming tiny pores in the concrete. When using low carbon silicate cement expansive agent, it is usually necessary to add the expansive agent to the concrete in a certain proportion, so an adding device is required. The feeding box is a simple device suitable for small projects or manual control. The low carbon silicate cement expansive agent can be added to the feeding box in advance and then added to the concrete mixer or mixer truck through the control valve.

[0003] According to the publication number: CN217943805U, a cement adding device for building concrete includes a feeding box, a discharging barrel is arranged at the lower side of the feeding box, a driving motor is fixedly connected to the upper side of the feeding box, a rotating disk is fixedly connected to the output end of the driving motor, a convex rod is arranged on one side of the rotating disk, an adjusting mechanism for adjusting the position of the convex rod is arranged inside the rotating disk, a swing rod is rotatably sleeved on the convex rod, and an extrusion mechanism slidably connected to the inner side of the feeding box is rotatably connected at the lower end of the swing rod, and a feeding mechanism is arranged on the upper side of the feeding box. In the utility model, cement can be continuously and quantitatively extruded from the feeding box, which is convenient for subsequent mixing with sand, gravel and water, and is easy to use.

[0004] 1. In the process of implementing this utility model, the applicant found that there are at least the following problems in the prior art:

[0005] When the bagged low carbon silicate cement expansive agent is loaded into the feeding box, since the low carbon silicate cement expansive agent is usually supplied in bagged form, the user needs to lift the bagged expansive agent and pour it into the feeding box by dumping when feeding, which makes the feeding process more laborious and inconvenient.

[0006] 2. When the low-carbon silicate cement expansion agent needs to be discharged, because it is a powder, the friction between the particles is large, and it is easy to aggregate and agglomerate. In addition, at the discharge port, the particles are affected by gravity and easily accumulate to form a "bridge", preventing the smooth flow of the material, resulting in the appearance of large agglomerates, causing blockage or slow discharge. Utility Model Content

[0007] In view of the deficiencies of the prior art, the utility model provides a low-carbon silicate cement expansion agent post-addition device, aiming to solve the problems in the use of the cement expansion agent post-addition device in the prior art.

[0008] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0009] The low carbon silicate cement expansion agent post-addition device comprises:

[0010] A feeding box, which is the main body of the low carbon silicate cement expansion agent post-addition device;

[0011] A discharge valve is provided through the middle of the bottom of the feeding box;

[0012] A rotating shaft runs through the middle of the top of the feeding box;

[0013] A plurality of blades are fixedly arranged at the bottom of the rotating shaft;

[0014] Turning handles are fixedly arranged at both ends of the rotating shaft;

[0015] Both sides of the bottom of the feeding box are connected with adjustment plates through spring telescopic rods;

[0016] A bent rod penetrating into the interior of the material adding box is fixed on one side of the top of the adjusting plate.

[0017] Preferably, both ends of the rotating shaft pass through the feeding box and are rotatably connected thereto via a bearing seat.

[0018] Preferably, the distance from the rotating shaft to the top of the feeding box is smaller than the length of the plurality of blades, and the plurality of blades are arranged from top to bottom.

[0019] Preferably, the spring telescopic rod is initially in a contracted state, and the adjustment plates are respectively located on both sides of the discharge valve.

[0020] Preferably, the bent rod is arranged in a hook shape, and one end of the bent rod is located on both sides of the inside of the discharge valve.

[0021] Preferably, support plates are fixedly provided on both sides of the top of the filling box, and the support plates are inclined downward toward the inner middle direction of the filling box.

[0022] Preferably, support legs are fixedly provided at the four corners of the bottom of the charging box, and anti-slip pads are fixedly provided at the bottom ends of the support legs.

[0023] The embodiment of the utility model provides a low carbon silicate cement expansion agent post-addition device, which has the following beneficial effects:

[0024] 1. By setting the rotating shaft, blades and handle, when it is necessary to put the bagged low-carbon silicate cement expansive agent into the feeding box, the user can directly lift the bagged low-carbon silicate cement expansive agent and place it on the top of the feeding box, and then just turn the handle to rotate the rotating shaft. Since the distance from the rotating shaft to the top of the feeding box is less than the length of multiple blades, multiple blades can cut the bag of the bagged low-carbon silicate cement expansive agent and wait for the low-carbon silicate cement expansive agent to fall into the feeding box, which reduces the time and cost of manual feeding and also reduces the safety risks during operation;

[0025] 2. By setting the adjusting plate, the bent rod and the spring telescopic rod, when it is necessary to discharge the material through the adding device, the user can open the discharge valve to discharge the low-carbon silicate cement expansive agent in the adding box, and when the low-carbon silicate cement expansive agent is discharged slowly or the discharge valve is blocked, the user only needs to pull the adjusting plate downward to extend the spring telescopic rod, which can drive the bent rod to move downward to clear the discharge valve, so that the low-carbon silicate cement expansive agent can be discharged normally, reducing the downtime and maintenance time caused by discharge problems. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0027] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0028] Figure 2 This is a schematic diagram of the internal structure of the material adding box of the utility model;

[0029] Figure 3 This utility model Figure 2 A in the enlarged view;

[0030] Figure 4 This utility model Figure 2 Enlarged view of point B in .

[0031] In the figure: 1. feeding box; 2. support plate; 3. support leg; 4. discharge valve; 5. rotating shaft; 6. blade; 7. turning handle; 8. adjustment plate; 9. bending rod; 10. spring telescopic rod. DETAILED DESCRIPTION

[0032] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0033] Example: Figure 1As shown, the post-addition device for low-carbon silicate cement expansive agent comprises: a feeding box 1 as the main body of the device, which is used to store the low-carbon silicate cement expansive agent. The feeding box 1 adopts a rectangular shape and is made of corrosion-resistant materials such as stainless steel. The support plate 2 is arranged to be tilted downward toward the middle direction of the inside of the feeding box 1. The main function of the support plate 2 is to support the feeding of bagged low-carbon silicate cement expansive agent. The main function of the support leg 3 is to support the entire feeding box 1 to ensure its stability. The support leg 3 is made of strong materials such as steel pipes. The discharge valve 4 is used to control the outflow of the low-carbon silicate cement expansive agent.

[0034] like Figure 1-3 As shown, the rotating shaft 5 is an axis that passes through the middle of the top of the feeding box 1, which is used to connect the blade 6 and the turning handle 7. The rotating shaft 5 can be cylindrical in shape and is generally made of corrosion-resistant metal materials such as stainless steel to ensure its durability and stability. The rotating shaft 5 is connected to the feeding box 1 through a bearing seat to achieve rotation. The blade 6 is used to cut open the bag body of the bagged low-carbon silicate cement expansion agent. The blade 6 can be in the shape of a straight knife or a curved knife. The blade 6 is generally made of hard materials such as stainless steel to ensure its cutting effect and durability. The turning handle 7 is used to manually rotate the rotating shaft 5 to drive the blade 6 to rotate. The turning handle 7 can be in the shape of a handle, which is convenient for users to hold and operate. The turning handle 7 is generally made of corrosion-resistant materials such as stainless steel to ensure its durability.

[0035] like Figure 2 and 4 As shown, the adjustment plate 8 is rectangular or similar in shape, and corrosion-resistant and wear-resistant metal materials or engineering plastics are selected to ensure its service life and stability in the working environment. The adjustment plate 8 is fixed on the spring telescopic rods 10 on both sides of the bottom of the charging box 1. The bent rod 9 is set in a hook shape so that it can help to clear the discharge valve 4. The spring telescopic rod 10 plays a supporting and adjusting role. It is in a contracted state in the initial state. When the user needs to adjust, the spring telescopic rod 10 can be stretched by manually pulling the adjustment plate 8 to drive the bent rod 9 to move downward, clear the discharge valve 4, and ensure the normal discharge of the low-carbon silicate cement expansion agent.

[0036] Working principle: First, when it is necessary to put the bagged low-carbon silicate cement expansive agent into the feeding box 1, the user can directly lift the bagged low-carbon silicate cement expansive agent and place it on the top of the feeding box 1, and then only need to turn the handle 7 to rotate the rotating shaft 5, so that the multiple blades 6 can cut the bag body of the bagged low-carbon silicate cement expansive agent, and wait for the low-carbon silicate cement expansive agent therein to fall into the feeding box 1, thereby reducing the time and cost of manual feeding. When it is necessary to discharge the material through the adding device, the user can open the discharge valve 4 to discharge the low-carbon silicate cement expansive agent in the feeding box 1, and when the low-carbon silicate cement expansive agent is discharged slowly or the discharge valve 4 is blocked, the user only needs to pull down the adjustment plate 8 to extend the spring telescopic rod 10, which can drive the bent rod 9 to move downward to clear the discharge valve 4, so that the low-carbon silicate cement expansive agent can be discharged normally, reducing the downtime and maintenance time caused by discharge problems.

[0037] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A post-addition device for low carbon silicate cement expansion agent, characterized in that: include: A feeding box (1), which is the main body of the low carbon silicate cement expansion agent post-addition device; A discharge valve (4) is provided through the middle of the bottom of the feeding box (1); A rotating shaft (5) passes through the middle of the top of the feeding box (1); A plurality of blades (6) are fixedly arranged at the bottom of the rotating shaft (5); Turning handles (7) are fixedly provided at both ends of the rotating shaft (5); Both sides of the bottom of the feeding box (1) are connected to adjustment plates (8) via spring telescopic rods (10); A bent rod (9) penetrating into the interior of the feeding box (1) is fixed to one side of the top of the adjustment plate (8).

2. The low carbon silicate cement expansion agent post-addition device according to claim 1, characterized in that: Both ends of the rotating shaft (5) pass through the feeding box (1) and are rotatably connected thereto via a bearing seat.

3. The low carbon silicate cement expansion agent post-addition device according to claim 1, characterized in that: The distance from the rotating shaft (5) to the top of the feeding box (1) is less than the length of the plurality of blades (6), and the plurality of blades (6) are arranged from top to bottom.

4. The low carbon silicate cement expansion agent post-addition device according to claim 1, characterized in that: The spring telescopic rod (10) is initially in a contracted state, and the adjustment plates (8) are respectively located on both sides of the discharge valve (4).

5. The low carbon silicate cement expansion agent post-addition device according to claim 1, characterized in that: The bent rod (9) is arranged in a hook shape, and one end of the bent rod (9) is located on both sides of the inside of the discharge valve (4).

6. The low carbon silicate cement expansion agent post-addition device according to claim 1, characterized in that: Support plates (2) are fixedly arranged on both sides of the top of the material adding box (1), and the support plates (2) are arranged to be tilted downwards towards the inner middle direction of the material adding box (1).

7. The low carbon silicate cement expansion agent post-addition device according to claim 1, characterized in that: Support legs (3) are fixedly provided at the four corners of the bottom of the feeding box (1), and anti-slip pads are fixedly provided at the bottom ends of the support legs (3).

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