Dustproof dry powder mortar conveying device

Abstract

The utility model discloses a kind of dust-dry powder mortar conveying devices, including screw conveyor, the bottom end upper surface of the screw conveyor is fixed with feed hopper, the top end bottom of the screw conveyor is fixed with discharge pipe and penetrates, the bottom end outside of the discharge pipe is slidably installed with adjustable material pipe, the top end between the screw conveyor of the adjustable material pipe is fixed with lifting electric telescopic link, the bottom end of the adjustable material pipe is equipped with two symmetrical distribution's rotary groove, the inboard of the rotary groove is fixed with connecting shaft pin, the outside of the connecting shaft pin is rotatably installed with rotary connecting block, the outside of the rotary connecting block is fixed with buffer baffle, the below of the buffer baffle is equipped with support torsional spring, one end of the support torsional spring is vertically inserted into the bottom end of adjustable material pipe and is fixed with adjustable material pipe.The utility model reduces the drop height of dry powder mortar, avoids dry powder mortar and container impact and generates a large amount of dust.

Description

Technical Field

[0001] This utility model relates to the field of dry mortar conveying technology, specifically a dust-proof dry mortar conveying device. Background Technology

[0002] Dry mortar refers to a granular or powdery material made by physically mixing aggregates (such as quartz sand), inorganic cementitious materials (such as cement), and additives (such as polymers) in a certain proportion after drying and screening. It is transported to the construction site in bagged or bulk form and can be used directly after being mixed with water. It is also known as dry mortar powder, dry-mixed mortar, or dry-mixed powder. Some building adhesives also belong to this category. Dry mortar plays a role in bonding, padding, protection, and decoration in the construction industry by applying thin layers, and its application in construction and decoration projects is extremely widespread.

[0003] During the conveying of dry mortar, the mortar enters the container from a high point and falls at a fast speed, resulting in a lot of dust pollution caused by the impact between the mortar and the container. Therefore, this does not meet the existing requirements. To address this, we propose a dust-proof dry mortar conveying device. Utility Model Content

[0004] The purpose of this utility model is to provide a dust-proof dry mortar conveying device to solve the problems mentioned in the background art, such as the high drop point and fast falling speed of the dry mortar when it enters the container during the conveying process, which leads to the collision between the dry mortar and the container and generates a lot of dust pollution.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a dust-proof dry mortar conveying device, comprising a screw conveyor, a feed funnel fixed to the upper surface of the bottom end of the screw conveyor, a discharge pipe fixed through the bottom of the top end of the screw conveyor, an adjustable material pipe slidably installed on the outer side of the bottom end of the discharge pipe, a lifting electric telescopic rod fixed between the top end of the adjustable material pipe and the screw conveyor, two symmetrically distributed rotating grooves opened at the bottom end of the adjustable material pipe, a connecting shaft pin fixed on the inner side of the rotating grooves, a rotating connecting block rotatably installed on the outer side of the connecting shaft pin, a buffer baffle fixed on the outer side of the rotating connecting block, a supporting torsion spring provided below the buffer baffle, one end of the supporting torsion spring vertically inserted into the bottom end of the adjustable material pipe and fixed thereto.

[0006] Preferably, the discharge pipe is provided with multiple speed-reducing components, which are linearly arrayed along the diameter of the discharge pipe.

[0007] Preferably, the speed reduction component includes six speed reduction bars, which are arranged in a circular array around the axis of the discharge pipe, and the projection angle between adjacent speed reduction bars on the plane is 30 degrees.

[0008] Preferably, a protective cylinder is fixed to the inner side of the bottom end of the adjustable feed tube, and an annular cavity is provided between the protective cylinder and the discharge tube.

[0009] Preferably, two symmetrically distributed adjusting telescopic rods are installed inside the annular cavity. The top ends of the adjusting telescopic rods are fixed to the protective cylinder, and the bottom ends of the adjusting telescopic rods are in contact with the buffer baffle.

[0010] Preferably, the top of the protective cylinder is an inclined slope with an inclination angle of 45 degrees, and the top edge of the inclined slope is in contact with the inner wall of the adjustable material tube.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] This invention features a rotatable buffer baffle and a rotating connecting block installed at the bottom of an adjustable feed tube. A torsion spring supports the buffer baffle from below. After the dry mortar enters the adjustable feed tube and accumulates a certain weight, the buffer baffle opens downwards due to the weight of the dry mortar, thereby reducing the speed at which the dry mortar leaves the bottom of the adjustable feed tube. At the same time, the height of the bottom of the adjustable feed tube is controlled by a lifting electric telescopic rod, reducing the falling height of the dry mortar and preventing the dry mortar from colliding with the container and generating a large amount of dust. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a cross-sectional view of the adjustable feed tube of this utility model;

[0015] Figure 3 for Figure 2 Enlarged view of the structure at point A in the middle;

[0016] Figure 4 This is a schematic diagram of the structure of the deceleration bar of this utility model.

[0017] In the diagram: 1. Screw conveyor; 2. Feed hopper; 3. Discharge pipe; 4. Adjustable feed pipe; 5. Lifting electric telescopic rod; 6. Protective cylinder; 7. Rotary trough; 8. Supporting torsion spring; 9. Rotary connecting block; 10. Buffer baffle; 11. Connecting shaft pin; 12. Adjustable telescopic rod; 13. Speed ​​reduction bar. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0019] like Figures 1 to 4As shown, a dust-proof dry mortar conveying device includes a screw conveyor 1. A feed hopper 2 is fixed to the upper surface of the bottom end of the screw conveyor 1. A discharge pipe 3 is fixed through the bottom of the top end of the screw conveyor 1. An adjustable material pipe 4 is slidably installed on the outer side of the bottom end of the discharge pipe 3. A lifting electric telescopic rod 5 is fixed between the top end of the adjustable material pipe 4 and the screw conveyor 1. Two symmetrically distributed rotating grooves 7 are opened at the bottom end of the adjustable material pipe 4. A connecting shaft pin 11 is fixed on the inner side of the rotating groove 7. A rotating connecting block 9 is rotatably installed on the outer side of the connecting shaft pin 11. A buffer baffle 10 is fixed, and a supporting torsion spring 8 is provided below the buffer baffle 10. One end of the supporting torsion spring 8 is vertically inserted into the bottom end of the adjustable material tube 4 and fixed to the adjustable material tube 4. By installing a rotatable buffer baffle 10 and a rotating connecting block 9 at the bottom of the adjustable material tube 4, and using the supporting torsion spring 8 to support the buffer baffle 10 from below, after the dry mortar enters the adjustable material tube 4 and accumulates a certain weight, the buffer baffle 10 opens downward due to the weight of the dry mortar, thereby reducing the speed at which the dry mortar leaves the bottom end of the adjustable material tube 4.

[0020] The discharge pipe 3 is equipped with multiple speed reduction components, which are linearly arrayed along the diameter of the discharge pipe 3. The speed reduction components include six deceleration bars 13, which are arranged in a circular array around the axis of the discharge pipe 3. The projection angle between adjacent deceleration bars 13 on the plane is 30 degrees. The regular placement of deceleration bars 13 inside the discharge pipe 3 reduces the falling speed of dry mortar inside the discharge pipe 3, thereby reducing the impact force of the dry mortar on the container when it leaves the adjustable material pipe 4.

[0021] A protective cylinder 6 is fixed to the inner side of the bottom end of the adjustable material pipe 4. An annular cavity is provided between the protective cylinder 6 and the discharge pipe 3. Two symmetrically distributed adjusting telescopic rods 12 are installed inside the annular cavity. The top of the adjusting telescopic rod 12 is fixed to the protective cylinder 6, and the bottom of the adjusting telescopic rod 12 contacts the buffer baffle 10. The buffer baffle 10 is squeezed downward by adjusting the telescopic rod 12, thereby opening the buffer baffle 10. This ensures that when the weight of the dry powder mortar inside the adjustable material pipe 4 is low, the dry powder mortar inside the adjustable material pipe 4 can be discharged.

[0022] The top of the protective cylinder 6 is an inclined slope with an inclination angle of 45 degrees, and the top edge of the inclined slope is in contact with the inner wall of the adjustable material pipe 4. The inclined slope at the top of the protective cylinder 6 ensures that the dry powder mortar will not remain on the top of the protective cylinder 6.

[0023] Working principle: When transporting dry mortar, the dry mortar is first fed into the feed hopper 2. Then, the screw inside the screw conveyor 1 transports the dry mortar from the bottom of the screw conveyor 1 to the top of the screw conveyor 1 and into the discharge pipe 3. After entering the discharge pipe 3, the dry mortar gathers towards the bottom of the adjustable material pipe 4. At this time, the lifting electric telescopic rod 5 drives the adjustable material pipe 4 to slide downward, so that the adjustable material pipe 4 is close to the container for receiving dry mortar. The distance between the bottom of the adjustable material pipe 4 and the container is equal to the height of the buffer baffle 10 and the rotating connecting block 9 after rotation. With a weight of 1 to 1.5 times, the dry mortar accumulates at the bottom of the adjustable feed pipe 4. The dry mortar then presses downwards onto the screw conveyor 1 and the rotating connecting block 9, causing the buffer baffle 10 and the rotating connecting block 9 to rotate around the axis of the connecting shaft pin 11. The bottom of the supporting torsion spring 8 is also rotated. The dry mortar enters the container from the bottom of the adjustable feed pipe 4. As the dry mortar continues to enter, the lifting electric telescopic rod 5 drives the adjustable feed pipe 4 to slowly rise in height, reducing the drop height of the dry mortar and preventing the dry mortar from colliding with the container and generating a large amount of dust.

[0024] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A dust-proof dry mortar conveying device, comprising a screw conveyor (1), characterized in that: A feed hopper (2) is fixed on the upper surface of the bottom end of the screw conveyor (1). A discharge pipe (3) is fixed through the bottom of the top end of the screw conveyor (1). An adjustable material pipe (4) is slidably installed on the outer side of the bottom end of the discharge pipe (3). A lifting electric telescopic rod (5) is fixed between the top end of the adjustable material pipe (4) and the screw conveyor (1). Two symmetrically distributed rotating grooves (7) are opened at the bottom end of the adjustable material pipe (4). A connecting shaft pin (11) is fixed on the inner side of the rotating groove (7). A rotating connecting block (9) is rotatably installed on the outer side of the connecting shaft pin (11). A buffer baffle (10) is fixed on the outer side of the rotating connecting block (9). A supporting torsion spring (8) is provided below the buffer baffle (10). One end of the supporting torsion spring (8) is vertically inserted into the bottom end of the adjustable material pipe (4) and fixed to the adjustable material pipe (4).

2. The dust-proof dry mortar conveying device according to claim 1, characterized in that: The discharge pipe (3) is equipped with multiple speed reduction components inside, which are linearly arrayed along the diameter of the discharge pipe (3).

3. The dust-proof dry mortar conveying device according to claim 2, characterized in that: The speed reduction assembly includes six speed reduction bars (13), which are arranged in a circular array around the axis of the discharge pipe (3), and the projection angle between adjacent speed reduction bars (13) on the plane is 30 degrees.

4. The dust-proof dry mortar conveying device according to claim 1, characterized in that: A protective cylinder (6) is fixed to the inner side of the bottom end of the adjustable material tube (4), and an annular cavity is provided between the protective cylinder (6) and the discharge tube (3).

5. The dust-proof dry mortar conveying device according to claim 4, characterized in that: Two symmetrically distributed adjusting telescopic rods (12) are installed inside the annular cavity. The top of the adjusting telescopic rod (12) is fixed to the protective cylinder (6), and the bottom of the adjusting telescopic rod (12) is in contact with the buffer baffle (10).

6. The dust-proof dry mortar conveying device according to claim 4, characterized in that: The top of the protective cylinder (6) is an inclined slope with an inclination angle of 45 degrees, and the top edge of the inclined slope is in contact with the inner wall of the adjustable material tube (4).

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