Cement mortar conveying device for building construction

The design of wear-resistant liner and positioning groove structure has solved the problem of severe wear in cement mortar conveying devices, achieving the effect of simplified maintenance and extended service life.

CN224266438UActive Publication Date: 2026-05-22JINGZHOU GAOFA CONSTRUCTION ENGINEERING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JINGZHOU GAOFA CONSTRUCTION ENGINEERING CO LTD
Filing Date
2025-06-06
Publication Date
2026-05-22

AI Technical Summary

Technical Problem

Existing cement mortar conveying devices used in construction suffer from severe wear on the inner wall due to friction between sand particles and the conveying shell during use, which affects the service life of the equipment and makes maintenance difficult.

Method used

The system employs a wear-resistant liner and positioning groove structure. Through the cooperation of the positioning groove and the limiting head, the wear-resistant liner is accurately positioned and installed, and is fixed with bolts and retaining rings. The wear-resistant liner is replaceable. Combined with motor drive and stirring blades to prevent blockage, the system improves the wear resistance and service life of the conveying pipe.

Benefits of technology

It simplifies maintenance, extends the service life of the conveying pipe, prevents damage from sand and gravel, ensures smooth and unobstructed material conveying, and reduces maintenance difficulty.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of cement mortar conveying, and discloses a cement mortar conveying device for building construction, which comprises a conveying pipe, the inner wall of the conveying pipe is provided with a positioning groove, the inner wall of the conveying pipe is inserted with a wear-resistant liner pipe, the bottom of the wear-resistant liner pipe is provided with a matching groove, and the matching groove is matched with the positioning groove. The bottom of the inner wall of the conveying pipe is fixedly connected with a limiting head, and the top of the conveying pipe is in threaded connection with a fixing cover. The utility model has the following advantages and effects: positioning installation can be realized, after the delivery pipe is inserted, the matching groove at the bottom can be accurately positioned and inserted with the limiting head, so that the bottom of the wear-resistant liner pipe is fixed, the fixed cover is rotatably covered by the inserted fixed cover, the top of the wear-resistant liner pipe can be fixed by the snap ring, and then the bolt is fixed; materials are rotationally conveyed by the threaded conveying rod, the wear-resistant liner pipe has high wear resistance, so that damage caused by gravel is prevented, the wear-resistant liner pipe can be pulled out and replaced when worn, the maintenance mode is simple, and the service life of the conveying pipe is prolonged.
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Description

Technical Field

[0001] This utility model relates to the field of cement mortar conveying technology, and in particular to a cement mortar conveying device for building construction. Background Technology

[0002] Currently, cement mortar is an important component of construction. Generally, there are specific locations on construction sites where mortar is mixed. After the mortar is mixed, it needs to be transported to various floors on the construction site. This transportation is done by construction carts, which is inefficient, time-consuming, and labor-intensive.

[0003] In the prior art, Chinese Patent Publication No. CN210418091U discloses a building cement mortar conveying device, including a base, a first conveying shell and a feeding shell fixed to the top of the base, the first conveying shell and the feeding shell being connected, a motor installed at the bottom of the base, the motor shaft of the motor passing through the interior of the first conveying shell, and a first spiral conveying blade installed on the motor shaft, a second conveying shell connected to the top of the first conveying shell, and a discharge shell connected to the left side of the top of the second conveying shell, the motor shaft having a rod groove inside, and an insert rod connected inside the rod groove, the insert rod being fixed to the bottom of the shaft. This utility model, by installing a first spiral conveying blade and a second spiral conveying blade respectively in the first and second conveying shells, can convey cement mortar to a higher position through the conveying shells, eliminating the inconvenience of using a construction trolley and greatly improving the efficiency of cement mortar transportation.

[0004] However, in actual use, the cement mortar contains sand particles, which rub against the conveyor shell during the conveying process. This can easily lead to severe wear on the inner wall of the conveyor shell after prolonged use, thus affecting the service life of the equipment and making maintenance difficult. Therefore, improvements are needed. Utility Model Content

[0005] The purpose of this invention is to provide a cement mortar conveying device for building construction, which has the advantages of simple maintenance and improved service life of the conveying pipe.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a cement mortar conveying device for building construction, comprising a conveying pipe, a positioning groove provided on the inner wall of the conveying pipe, a wear-resistant liner inserted into the inner wall of the conveying pipe, a matching groove provided at the bottom of the wear-resistant liner, a limiting head fixedly connected to the bottom of the inner wall of the conveying pipe, a fixing cap threadedly connected to the top of the conveying pipe, a retaining ring fixedly connected to the bottom of the fixing cap, a bolt threadedly connected to the inside of the fixing cap, a threaded conveying rod rotatably connected inside the conveying pipe, and a reinforcing rod fixedly connected to the outer surface of the wear-resistant liner.

[0007] By adopting the above technical solution, when using the device, the operator aligns the reinforcing rod with the positioning groove on the inner wall of the conveying pipe, inserting the reinforcing rod into the positioning groove. Simultaneously, the wear-resistant liner is inserted into the conveying pipe. Under the constraint of the positioning groove, the wear-resistant liner is prevented from rotating on the inner wall of the conveying pipe, thus achieving positioning installation. After the conveying pipe is inserted, the matching groove at the bottom can accurately position and insert with the limiting head, thereby fixing the bottom of the wear-resistant liner. The fixing cover is then rotated on, and the retaining ring can fix the top of the wear-resistant liner. Finally, the bolts are tightened. The material is conveyed by the rotating threaded conveying rod. The wear-resistant liner has strong wear resistance, thus preventing damage from sand and gravel. When the wear-resistant liner becomes worn, it can be pulled out and replaced. The maintenance method is simple, improving the service life of the conveying pipe.

[0008] A further feature of this invention is that the bottom of the conveying pipe has a feed inlet, and the bottom of the wear-resistant liner has a second feed inlet.

[0009] By adopting the above technical solution, after the wear-resistant liner is installed, the bottom feed port and the second feed port are aligned front to back, allowing the material to enter smoothly.

[0010] A further feature of this invention is that the top of the conveying pipe has a discharge port, and the top of the wear-resistant liner has a second discharge port.

[0011] By adopting the above technical solution, the discharge port and the second discharge port are aligned one after the other, which does not affect the discharge of materials.

[0012] A further feature of this invention is that a drive seat is fixedly connected to the bottom of the conveying pipe, and a motor is fixedly connected to the inner wall of the drive seat.

[0013] By adopting the above technical solution, a motor is installed inside the drive unit, and the motor is started when conveying materials.

[0014] A further feature of this invention is that a motor shaft is fixedly connected to the output end of the motor, and the top of the motor shaft is fixedly connected to a threaded conveying rod.

[0015] By adopting the above technical solution, the rotation of the motor shaft drives the rotation of the threaded conveyor rod, thereby lifting and conveying the material.

[0016] A further feature of this invention is that a feeding hopper is fixedly connected to the bottom of the conveying pipe, and a stirring shaft is rotatably connected to the inner wall of the feeding hopper.

[0017] By adopting the above technical solution, the material is fed from the feed hopper, and the stirring shaft is driven to rotate by a suitable motor.

[0018] A further feature of this invention is that the inner wall of the wear-resistant liner is coated with a wear-resistant coating, and a handle is fixedly connected to the top of the fixed cover.

[0019] By adopting the above technical solution, the wear-resistant coating improves the wear resistance of the wear-resistant liner, and the handle facilitates the installation and removal of the fixed cover.

[0020] A further feature of this invention is that an anti-slip ring is fixedly connected to the top of the wear-resistant liner, and the inner wall of the anti-slip ring is sleeved with a retaining ring.

[0021] By adopting the above technical solution, the anti-slip ring facilitates the hand pulling of the wear-resistant liner and makes contact with the retaining ring.

[0022] A further feature of this invention is that the number of the anastomotic grooves is several, and the several anastomotic grooves are arranged in a ring array.

[0023] By adopting the above technical solution, the cross-section of the anastomosis groove is circular, and the spacing between them is the same.

[0024] A further feature of this invention is that four stirring blades are fixedly connected to the outer surface of the stirring shaft.

[0025] By adopting the above technical solution, the stirring blades rotate slowly to prevent material blockage.

[0026] The beneficial effects of this utility model are:

[0027] 1. This utility model, through the coordinated arrangement of a conveying pipe, positioning groove, wear-resistant liner, matching groove, limiting head, fixing cover, retaining ring, bolts, threaded conveying rod, and reinforcing rod, enables the device to be used by the operator. When the reinforcing rod is aligned with the positioning groove on the inner wall of the conveying pipe, it is inserted into the positioning groove. Simultaneously, the wear-resistant liner is inserted into the conveying pipe. The positioning groove prevents the wear-resistant liner from rotating within the conveying pipe, achieving precise positioning and installation. After insertion, the matching groove at the bottom of the conveying pipe accurately engages with the limiting head, thus fixing the bottom of the wear-resistant liner. The fixing cover is then rotated on, and the retaining ring secures the top of the wear-resistant liner. Finally, the bolts are tightened. The material is conveyed by the rotating threaded conveying rod. The wear-resistant liner has strong wear resistance, preventing damage from sand and gravel. When the wear-resistant liner becomes worn, it can be removed and replaced, simplifying maintenance and extending the service life of the conveying pipe.

[0028] 2. This utility model, through the coordinated arrangement of the inlet, second inlet, outlet, second outlet, drive base, motor, motor shaft, feed hopper, stirring shaft, wear-resistant coating, handle, anti-slip ring, and stirring blades, ensures that when the wear-resistant liner is installed, the bottom inlet and second inlet are aligned front to back, allowing material to enter smoothly. The outlet and second outlet are aligned front to back, not affecting material discharge. The drive base houses the motor, which is activated when conveying material. The motor shaft rotates, driving the threaded conveyor rod to lift and convey the material. Material is fed from the feed hopper. The stirring shaft is driven by a suitable motor. The wear-resistant coating improves the wear resistance of the wear-resistant liner. The handle facilitates the installation and removal of the fixing cover. The anti-slip ring allows the hand to pull the wear-resistant liner and contacts the retaining ring. The stirring blades rotate slowly to prevent material blockage. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 This is a schematic diagram of the structure of this utility model;

[0031] Figure 2 This is a schematic diagram of the fixed cover structure of this utility model;

[0032] Figure 3 This is a schematic diagram of the limiting head structure of this utility model;

[0033] Figure 4 This is a schematic diagram of the positioning groove structure of this utility model.

[0034] In the diagram, 1. Conveying pipe; 2. Positioning groove; 3. Wear-resistant liner; 4. Matching groove; 5. Limiting head; 6. Fixing cover; 7. Snap ring; 8. Bolt; 9. Threaded conveying rod; 10. Feed inlet; 11. Second feed inlet; 12. Discharge outlet; 13. Second discharge outlet; 14. Drive seat; 15. Motor; 16. Motor shaft; 17. Feed hopper; 18. Tumbling shaft; 19. Wear-resistant coating; 20. Handle; 21. Anti-slip ring; 22. Tumbling blades; 23. Reinforcing rod. Detailed Implementation

[0035] The technical solution of this utility model will now be clearly and completely described with reference to specific embodiments. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0036] Reference Figure 1-4A cement mortar conveying device for building construction includes a conveying pipe 1, a positioning groove 2 on the inner wall of the conveying pipe 1, a wear-resistant liner 3 inserted into the inner wall of the conveying pipe 1, a matching groove 4 at the bottom of the wear-resistant liner 3, a limiting head 5 fixedly connected to the bottom of the inner wall of the conveying pipe 1, a fixing cover 6 threadedly connected to the top of the conveying pipe 1, a retaining ring 7 fixedly connected to the bottom of the fixing cover 6, a bolt 8 threadedly connected to the inside of the fixing cover 6, a threaded conveying rod 9 rotatably connected inside the conveying pipe 1, and a reinforcing rod 23 fixedly connected to the outer surface of the wear-resistant liner 3. During use, the operator aligns the reinforcing rod 23 with the positioning groove 2 on the inner wall of the conveying pipe 1, inserting the reinforcing rod 23 into the positioning groove 2, while simultaneously inserting the wear-resistant liner 3 into the conveying pipe 1. Under the constraint of the positioning groove 2, the device prevents... The wear-resistant liner 3 rotates within the inner wall of the conveying pipe 1, enabling precise positioning and installation. After insertion, the matching groove 4 at the bottom of the conveying pipe 1 precisely engages with the limiting head 5, thus fixing the bottom of the wear-resistant liner 3. The fixing cover 6 is then rotated on, and the retaining ring 7 secures the top of the wear-resistant liner 3. Finally, the bolts 8 are tightened. The material is conveyed by the rotating threaded conveying rod 9. The wear-resistant liner 3 has strong wear resistance, preventing damage from sand and gravel. When wear occurs, the wear-resistant liner 3 can be removed and replaced, simplifying maintenance and extending the service life of the conveying pipe 1. The conveying pipe 1 has a feed inlet 10 at its bottom, and the wear-resistant liner 3 has a second feed inlet 11 at its bottom. After installation, the feed inlet 10 and the second feed inlet 11 at the bottom... The material can enter smoothly. A discharge port 12 is opened at the top of the conveying pipe 1, and a second discharge port 13 is opened at the top of the wear-resistant liner 3. The discharge ports 12 and 13 are aligned and do not affect the material discharge. A drive base 14 is fixedly connected to the bottom of the conveying pipe 1, and a motor 15 is fixedly connected to the inner wall of the drive base 14. The motor 15 is installed inside the drive base 14 and is started when conveying material. A motor shaft 16 is fixedly connected to the output end of the motor 15. The top of the motor shaft 16 is fixedly connected to the threaded conveying rod 9. The rotation of the motor shaft 16 drives the threaded conveying rod 9 to rotate, thus lifting and conveying the material. A feed hopper 17 is fixedly connected to the bottom of the conveying pipe 1, and a stirring shaft 18 is rotatably connected to the inner wall of the feed hopper 17. Material enters from the feed hopper... The hopper 17 feeds material, and the stirring shaft 18 is driven to rotate by a suitable motor. The inner wall of the wear-resistant liner 3 is coated with a wear-resistant coating 19. A handle 20 is fixedly connected to the top of the fixed cover 6. The wear-resistant coating 19 improves the wear resistance of the wear-resistant liner 3, and the handle 20 facilitates the installation and removal of the fixed cover 6. An anti-slip ring 21 is fixedly connected to the top of the wear-resistant liner 3. The inner wall of the anti-slip ring 21 is sleeved with the retaining ring 7. The anti-slip ring 21 facilitates the hand to pull the wear-resistant liner 3 and contact with the retaining ring 7. There are several matching grooves 4, which are arranged in a ring array. The cross-section of the matching grooves 4 is circular, and the spacing between them is the same. Four stirring blades 22 are fixedly connected to the outer surface of the stirring shaft 18. The stirring blades 22 rotate slowly to prevent material blockage.

[0037] In this invention, the coordinated arrangement of the conveying pipe 1, positioning groove 2, wear-resistant liner 3, matching groove 4, limiting head 5, fixing cover 6, retaining ring 7, bolt 8, threaded conveying rod 9, and reinforcing rod 23 ensures that during use, the operator aligns the reinforcing rod 23 with the positioning groove 2 on the inner wall of the conveying pipe 1, inserting the reinforcing rod 23 into the positioning groove 2. Simultaneously, the wear-resistant liner 3 is inserted into the conveying pipe 1. Under the constraint of the positioning groove 2, rotation of the wear-resistant liner 3 within the inner wall of the conveying pipe 1 is prevented. It enables precise positioning and installation. After the conveying pipe 1 is inserted, the matching groove 4 at the bottom can accurately engage with the limiting head 5, thus fixing the bottom of the wear-resistant liner 3. The fixing cover 6 is then rotated on, and the retaining ring 7 secures the top of the wear-resistant liner 3. Finally, the bolts 8 are tightened. The material is conveyed by the rotating threaded conveying rod 9. The wear-resistant liner 3 has strong wear resistance, preventing damage from sand and gravel. When the wear-resistant liner 3 shows wear, it can be removed and replaced. The maintenance method is simple, improving the service life of the conveying pipe 1. The device, through the coordinated arrangement of the inlet 10, second inlet 11, outlet 12, second outlet 13, drive base 14, motor 15, motor shaft 16, feed hopper 17, stirring shaft 18, wear-resistant coating 19, handle 20, anti-slip ring 21, and stirring blades 22, ensures that when the wear-resistant liner 3 is installed, the bottom inlet 10 and second inlet 11 are aligned front to back, allowing material to enter smoothly; the outlet 12 and second outlet 13 are also aligned front to back, preventing material from entering unimpeded. The material discharge is affected by the motor 15 installed inside the drive seat 14. When conveying materials, the motor 15 is started, and the motor shaft 16 rotates, driving the threaded conveying rod 9 to rotate, so that the material is lifted and conveyed. The material is fed from the feed hopper 17. The stirring shaft 18 is driven to rotate by a suitable motor. The wear-resistant coating 19 improves the wear resistance of the wear-resistant liner 3. The handle 20 facilitates the installation and removal of the fixed cover 6. The anti-slip ring 21 facilitates the hand to pull the wear-resistant liner 3 and contacts the retaining ring 7. The stirring blades 22 rotate slowly to prevent material blockage.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A cement mortar conveying device for building construction, comprising a conveying pipe (1), characterized in that: The inner wall of the conveying pipe (1) is provided with a positioning groove (2), a wear-resistant liner (3) is inserted into the inner wall of the conveying pipe (1), a matching groove (4) is provided at the bottom of the wear-resistant liner (3), a limit head (5) is fixedly connected to the bottom of the inner wall of the conveying pipe (1), a fixing cover (6) is threadedly connected to the top of the conveying pipe (1), a retaining ring (7) is fixedly connected to the bottom of the fixing cover (6), a bolt (8) is threadedly connected to the inside of the fixing cover (6), a threaded conveying rod (9) is rotatably connected to the inside of the conveying pipe (1), and a reinforcing rod (23) is fixedly connected to the outer surface of the wear-resistant liner (3).

2. The cement mortar conveying device for building construction according to claim 1, characterized in that: The bottom of the conveying pipe (1) is provided with a feed inlet (10), and the bottom of the wear-resistant liner (3) is provided with a second feed inlet (11).

3. The cement mortar conveying device for building construction according to claim 1, characterized in that: The top of the conveying pipe (1) is provided with a discharge port (12), and the top of the wear-resistant liner (3) is provided with a second discharge port (13).

4. The cement mortar conveying device for building construction according to claim 1, characterized in that: The bottom of the conveying pipe (1) is fixedly connected to a drive seat (14), and the inner wall of the drive seat (14) is fixedly connected to a motor (15).

5. A cement mortar conveying device for building construction according to claim 4, characterized in that: The output end of the motor (15) is fixedly connected to a motor shaft (16), and the top of the motor shaft (16) is fixedly connected to a threaded conveying rod (9).

6. A cement mortar conveying device for building construction according to claim 1, characterized in that: The bottom of the conveying pipe (1) is fixedly connected to a feed hopper (17), and the inner wall of the feed hopper (17) is rotatably connected to a stirring shaft (18).

7. A cement mortar conveying device for building construction according to claim 1, characterized in that: The inner wall of the wear-resistant liner (3) is coated with a wear-resistant coating (19), and the top of the fixed cover (6) is fixedly connected with a handle (20).

8. A cement mortar conveying device for building construction according to claim 1, characterized in that: The top of the wear-resistant liner (3) is fixedly connected to an anti-slip ring (21), and the inner wall of the anti-slip ring (21) is sleeved with a retaining ring (7).

9. A cement mortar conveying device for building construction according to claim 1, characterized in that: The number of anastomotic grooves (4) is several, and the several anastomotic grooves (4) are arranged in a ring array.

10. A cement mortar conveying device for building construction according to claim 6, characterized in that: The outer surface of the stirring shaft (18) is fixedly connected with stirring blades (22), and the number of stirring blades (22) is four.