A multi-component mortar forming and preparing machine used in construction engineering

Abstract

The present invention relates to the technical field of mortar forming preparation, and discloses a multi-component mortar forming preparation machine applied to construction engineering, including a preparation barrel and a support platform, wherein the preparation barrel is arranged on the support platform and fixedly connected to the support platform, a support frame is fixedly connected to the top of the support platform, a lifting assembly is fixedly connected to the support frame, and further includes: a vibrating device, which is arranged on the support platform and is used to vibrate the mortar inside the preparation barrel, wherein the vibrating device is fixedly connected to the top of the support platform; and a lining device, which is arranged inside the preparation barrel. The multi-component mortar forming preparation machine applied to construction engineering can stir the slurry inside the preparation barrel through the vibrating assembly, facilitate automatic stirring of the slurry, and do not require manual participation, and can avoid damage to the driving motor caused by the vibration of the vibrator, and is safe and reliable to use.

Description

Technical Field

[0001] The invention relates to the technical field of mortar forming and preparation, in particular to a multi-component mortar forming and preparation machine used in construction engineering. Background Art

[0002] Engineering construction units have built many super high-rise buildings and ecological and environmentally friendly buildings. These buildings with special requirements have special requirements for building materials. However, although the total amount of existing building materials in my country is huge, most of them cannot meet certain engineering specifications. More and more scientific research units and experimental personnel have begun to explore new building materials to meet the different requirements of different engineering structures. In engineering material testing, the exploration of mortar performance is an important aspect.

[0003] At present, the experimenters can only prepare the mortar manually, which has low preparation efficiency, uneven vibration and inconvenient material removal during the preparation process. Summary of the invention

[0004] To achieve the above objectives, the present invention is implemented through the following technical solutions: a multi-component mortar forming preparation machine used in construction engineering, comprising a preparation bucket and a support platform, wherein the preparation bucket is arranged on the support platform and is fixedly connected to the support platform, a support frame is fixedly connected to the top of the support platform, and a lifting assembly is fixedly connected to the support frame, and further comprising:

[0005] A vibrating device, which is arranged on the support platform and is used to vibrate the mortar inside the preparation barrel, and the vibrating device is fixedly connected to the top of the support platform;

[0006] A lining device is arranged inside the preparation barrel, and is used to separate the inner wall of the preparation barrel from the mortar inside the barrel, and the lining device is fixedly connected to the inner wall of the preparation barrel.

[0007] Preferably, the vibrating device comprises a lifting bracket, a bearing ring is fixedly connected to the center position of the top of the lifting bracket, a positioning plate is fixedly connected to the inner side of the bearing ring, a vibrator passes through and is fixedly connected to the positioning plate, a vibrating assembly is fixedly connected to the output end of the vibrator, a connecting frame is fixedly connected to the top of the positioning plate, a connecting seat is fixedly connected to the center position of the top of the connecting frame, a square groove is opened on the top of the connecting seat, a connecting block is provided on the top of the connecting seat, an elastic telescopic rod is fixedly connected to the top of the connecting block, and a driving motor is fixedly connected to the top of the elastic telescopic rod, and the slurry inside the preparation barrel can be stirred by the vibrating assembly, which facilitates the automatic stirring of the slurry without manual participation and can avoid damage to the driving motor caused by the vibration of the vibrator, and is safe and reliable to use.

[0008] Preferably, the bottom of the lifting bracket is fixedly connected to the top of the support platform, and the top of the driving motor is fixedly connected to the bottom of the lifting assembly.

[0009] Preferably, the bottom of the vibrating assembly extends to the interior of the preparation barrel, and the shape of the bottom of the connecting block is adapted to the square groove on the top of the connecting seat.

[0010] Preferably, the vibrating assembly comprises a main shaft, a stirring rod is fixedly connected to the side of the main shaft, a trowel plate is fixedly connected to the side of the bottom of the main shaft, a telescopic cavity is opened inside the trowel plate, a telescopic plate is slidably connected to the inner wall of the telescopic cavity, one end of the telescopic plate passes through the telescopic cavity and extends to the outside of the telescopic cavity, one end of the telescopic plate located inside the telescopic cavity is fixedly connected to a telescopic spring, and one end of the telescopic spring away from the telescopic plate is fixedly connected to the inner wall of the telescopic cavity;

[0011] During stirring, the vibration component rotates, and the main shaft drives the stirring rod to rotate, so that the slurry inside the preparation barrel can be stirred by the stirring rod, so that the various components inside the preparation barrel can be evenly mixed together. The slurry can be homogenized before the vibration operation, which is convenient for improving the quality of the material after molding. At the same time, since the stirring rod is arranged in an arc shape, the material can be pushed outward during the stirring process by the arc-shaped stirring rod, and the stirring effect is better. After the vibration is completed, the bearing ring is driven to rise by the lifting bracket, and the vibrator and the vibration component are driven to rise by the bearing ring. During the rising process, since the top of the stirring rod is arranged in a triangular shape, the material will not accumulate on the top of the stirring rod, and the stirring rod can be prevented from bringing the material out. When the trowel plate rises to the upper surface of the material, the lifting assembly can drive the drive motor to connect with the vibrator again, and the vibration component can be driven to rotate again, so that the top of the material can be smoothed by the trowel plate, which can ensure the flatness of the top of the material after molding.

[0012] Preferably, the top of the main shaft is fixedly connected to the output end of the vibrator, the stirring rod is arranged in an arc shape, and the top of the stirring rod is arranged in a triangular shape.

[0013] Preferably, the stirring rods and the trowel plates are provided in multiple groups and are evenly distributed on the main shaft, and a sealing ring is provided between the telescopic cavity and the telescopic plate.

[0014] Preferably, the lining device includes an inner sleeve, an expansion cavity is opened inside the inner sleeve, a draw belt is fixedly connected to the inner wall of the expansion cavity, the end of the draw belt away from the inner wall of the expansion cavity is fixedly connected to a pull plate, the end of the pull plate away from the draw belt is fixedly connected to a telescopic push rod, the end of the telescopic push rod away from the pull plate is fixedly connected to the inner wall of the expansion cavity, an air pipe is fixedly connected to one side of the inner sleeve, the air pipe is connected to the inside of the expansion cavity, the end of the air pipe away from the inner sleeve is connected to an annular tube, and one side of the annular tube is connected to an air pump through an air inlet pipe, so that the material removal operation is convenient, and the expansion degree of the inner sleeve can be controlled by controlling the air pressure inside the inner sleeve, thereby controlling the diameter of the molding material, and the adjustability is good.

[0015] Preferably, the inner liner is arranged inside the preparation barrel and fixedly connected to the inner wall of the preparation barrel, and the air pipe passes through the preparation barrel and extends to the outside of the preparation barrel.

[0016] The present invention provides a multi-component mortar forming and preparing machine for use in construction engineering. It has the following beneficial effects:

[0017] 1. The multi-component mortar forming and preparation machine, after the mortar is poured into the preparation barrel, the bearing ring is driven to descend by the lifting bracket, the bearing ring drives the positioning plate to descend, the positioning plate drives the vibrator to descend, the vibrator drives the vibration assembly to descend, and the vibration assembly is inserted into the mortar inside the preparation barrel, and then the driving motor is driven to descend by the lifting assembly, the driving motor drives the elastic telescopic rod to descend, the elastic telescopic rod drives the connecting block to descend, and presses the connecting block on the top of the connecting seat, the driving motor drives the elastic telescopic rod to rotate slowly, and the connecting block rotates slowly accordingly, and when the bottom of the connecting block rotates to the position facing the square groove, the elastic force of the elastic telescopic rod can be used to push the connecting block into the square groove, and then the connecting block can drive the connecting seat to rotate by cooperating with the square groove, the connecting seat drives the connecting frame to rotate, and the connecting frame drives the vibrator and the vibration assembly to rotate through the positioning plate, and the slurry inside the preparation barrel can be stirred by the vibration assembly, so that the slurry can be stirred automatically without manual participation.

[0018] 2. The multi-component mortar forming preparation machine can drive the vibrating assembly to perform a vibrating operation through the vibrator after the mixing is completed. The slurry inside the preparation barrel is vibrated by the vibrating assembly to replace manual vibration. At the same time, when the vibrator is vibrating, the lifting assembly can drive the driving motor and the elastic telescopic rod to rise, and the elastic telescopic rod can drive the connecting block to be pulled out from the inside of the square groove, so that the connection between the vibrator and the driving motor is disconnected, thereby avoiding damage to the driving motor caused by the vibration of the vibrator. The use is safe and reliable.

[0019] 3. The multi-component mortar forming and preparation machine has a vibration assembly that rotates during stirring, wherein the main shaft drives the stirring rod to rotate, and the slurry inside the preparation barrel can be stirred by the stirring rod, so that the various components inside the preparation barrel can be evenly mixed together, and the slurry can be homogenized before the vibration operation, which is convenient for improving the quality of the material after molding. At the same time, since the stirring rod is arranged in an arc shape, the material can be pushed outward during the stirring process by the arc-shaped stirring rod, and the stirring effect is better. After the vibration is completed, the bearing ring is driven to rise by the lifting bracket, and the vibrator and the vibration assembly are driven to rise by the bearing ring. During the rising process, since the top of the stirring rod is arranged in a triangular shape, the material will not accumulate on the top of the stirring rod, and the stirring rod can avoid the situation where the material is brought out. When the trowel plate rises to the upper surface of the material, the lifting assembly can drive the driving motor to be connected to the vibrator again, and the vibration assembly can be driven to rotate again, and the top of the material can be smoothed by the trowel plate, which can ensure the flatness of the top of the material after molding.

[0020] 4. When the multi-component mortar forming and preparation machine is used, air is inflated into the annular tube through an air pump, and the gas inside the annular tube enters the expansion cavity through the air pipe. After the expansion cavity is inflated, it expands and tightens, and the material inside the preparation barrel can be supported by the inner sleeve. When the material needs to be removed after molding, the telescopic push rod is controlled to shorten, and the telescopic push rod pulls the drawstring, and the drawstring drives the side wall of the inner sleeve to move, so that the side of the inner sleeve is separated from the molded material, and then the molded material can be taken out from the preparation barrel. The removal operation is convenient, because the drawstring pulls the inner sleeve away from the molding material and starts to separate from the local part and then slowly spreads, so the separation is relatively simple, and the expansion degree of the inner sleeve can be controlled by controlling the air pressure inside the inner sleeve, thereby controlling the diameter of the molding material, and the adjustability is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the multi-component mortar forming and preparing machine of the present invention;

[0022] Figure 2 It is a schematic diagram of the structure of the vibrating device of the present invention;

[0023] Figure 3 This is a schematic diagram of the connection structure of the connection block of the present invention;

[0024] Figure 4 This is a schematic diagram of the structure of the vibrating assembly of the present invention;

[0025] Figure 5 This is a schematic diagram of the internal structure of the telescopic cavity of the present invention;

[0026] Figure 6 It is a schematic diagram of the structure of the lining device of the present invention;

[0027] Figure 7It is a schematic diagram of the internal structure of the lining device of the present invention.

[0028] In the figure: 1. preparation barrel; 2. support table; 3. support frame; 4. lifting assembly; 5. vibrating device; 51. lifting bracket; 52. bearing ring; 53. positioning plate; 54. vibrator; 55. vibrating assembly; 551. main shaft; 552. stirring rod; 553. trowel plate; 554. telescopic cavity; 555. telescopic plate; 556. telescopic spring; 56. connecting frame; 57. connecting seat; 58. connecting block; 59. elastic telescopic rod; 50. driving motor; 6. lining device; 61. lining sleeve; 62. expansion cavity; 63. pull belt; 64. pull plate; 65. telescopic push rod; 66. air pipe; 67. annular pipe; 68. air pump. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] See also Figure 1-Figure 5 The present invention provides a technical solution to solve the problem that the efficiency of laboratory personnel is low and the vibration is uneven when preparing mortar molding: a multi-component mortar molding preparation machine used in construction engineering, including a preparation barrel 1 and a support platform 2, the preparation barrel 1 is arranged on the support platform 2 and is fixedly connected to the support platform 2, the top of the support platform 2 is fixedly connected to a support frame 3, and the support frame 3 is fixedly connected to a lifting component 4, and also includes:

[0031] A vibrating device 5, which is arranged on the support platform 2, and is used to vibrate the mortar inside the preparation barrel 1, and the vibrating device 5 is fixedly connected to the top of the support platform 2;

[0032] The lining device 6 is arranged inside the preparation barrel 1, and the lining device 6 is used to separate the inner wall of the preparation barrel 1 from the mortar inside the preparation barrel 1, and the lining device 6 is fixedly connected to the inner wall of the preparation barrel 1;

[0033] When in use, pour the mortar into the preparation barrel 1, and then vibrate the mortar inside the preparation barrel 1 through the vibrating device 5, without manual preparation, and easy to use;

[0034] The vibrating device 5 includes a lifting bracket 51, a bearing ring 52 is fixedly connected to the center position of the top of the lifting bracket 51, and a positioning plate 53 is fixedly connected to the inner side of the bearing ring 52. A vibrator 54 is penetrated and fixedly connected to the positioning plate 53, and a vibrating assembly 55 is fixedly connected to the output end of the vibrator 54. A connecting frame 56 is fixedly connected to the top of the positioning plate 53, and a connecting seat 57 is fixedly connected to the center position of the top of the connecting frame 56. A square groove is provided on the top of the connecting seat 57, and a connecting block 58 is provided on the top of the connecting seat 57. An elastic telescopic rod 59 is fixedly connected to the top of the connecting block 58, and a driving motor 50 is fixedly connected to the top of the elastic telescopic rod 59. The bottom of the lifting bracket 51 is fixedly connected to the top of the support platform 2, and the top of the driving motor 50 is fixedly connected to the bottom of the lifting assembly 4. The bottom of the vibrating assembly 55 extends to the inside of the preparation barrel 1, and the shape of the bottom of the connecting block 58 is adapted to the square groove at the top of the connecting seat 57.

[0035] After the mortar is poured into the preparation barrel 1, the bearing ring 52 is driven down by the lifting bracket 51, the bearing ring 52 drives the positioning plate 53 to descend, the positioning plate 53 drives the vibrator 54 to descend, the vibrator 54 drives the vibration assembly 55 to descend, and the vibration assembly 55 is inserted into the mortar inside the preparation barrel 1, and then the driving motor 50 is driven down by the lifting assembly 4, the driving motor 50 drives the elastic telescopic rod 59 to descend, the elastic telescopic rod 59 drives the connecting block 58 to descend, and presses the connecting block 58 on the top of the connecting seat 57, and the driving motor 50 drives the elastic telescopic rod 59 to descend. The retractable rod 59 rotates slowly, and the connecting block 58 rotates slowly accordingly. When the bottom of the connecting block 58 rotates to the position facing the square groove, the elastic force of the elastic telescopic rod 59 can push the connecting block 58 into the square groove. Then the connecting block 58 can drive the connecting seat 57 to rotate by cooperating with the square groove, and the connecting seat 57 drives the connecting frame 56 to rotate. The connecting frame 56 drives the vibrator 54 and the vibration assembly 55 to rotate through the positioning plate 53, and the slurry inside the preparation barrel 1 can be stirred by the vibration assembly 55, which is convenient for automatic stirring of the slurry without manual participation.

[0036] After the stirring is completed, the vibrator 54 can be used to drive the vibrating assembly 55 to perform the vibrating operation. The vibrating assembly 55 can be used to vibrate the slurry inside the preparation barrel 1, replacing manual vibration. At the same time, when the vibrator 54 is vibrating, the lifting assembly 4 can be used to drive the driving motor 50 and the elastic telescopic rod 59 to rise, and the elastic telescopic rod 59 can be used to drive the connecting block 58 to be pulled out from the inside of the square groove, so that the connection between the vibrator 54 and the driving motor 50 is disconnected, and the vibration of the vibrator 54 inside causes damage to the driving motor 50, which is safe and reliable to use.

[0037] The vibrating assembly 55 includes a main shaft 551, a stirring rod 552 is fixedly connected to the side of the main shaft 551, a trowel plate 553 is fixedly connected to the side of the bottom of the main shaft 551, a telescopic cavity 554 is opened inside the trowel plate 553, a telescopic plate 555 is slidably connected to the inner wall of the telescopic cavity 554, one end of the telescopic plate 555 passes through the telescopic cavity 554 and extends to the outside of the telescopic cavity 554, a telescopic spring 556 is fixedly connected to one end of the telescopic plate 555 located inside the telescopic cavity 554, and one end of the telescopic spring 556 away from the telescopic plate 555 is fixedly connected to the inner wall of the telescopic cavity 554, the top of the main shaft 551 is fixedly connected to the output end of the vibrator 54, the stirring rod 552 is arranged in an arc shape, the top of the stirring rod 552 is arranged in a triangular shape, the stirring rod 552 and the trowel plate 553 are arranged in multiple groups and are evenly distributed on the main shaft 551, and a sealing ring is arranged between the telescopic cavity 554 and the telescopic plate 555;

[0038] During stirring, the vibration assembly 55 rotates, wherein the main shaft 551 drives the stirring rod 552 to rotate, and the stirring rod 552 can be used to stir the slurry inside the preparation barrel 1, so that the various components inside the preparation barrel 1 can be evenly mixed together. The slurry can be homogenized before the vibration operation, which is convenient for improving the quality of the material after molding. At the same time, since the stirring rod 552 is set in an arc shape, the material can be pushed outward during the stirring process through the arc-shaped stirring rod 552, and the stirring effect is good. After the vibration is completed, the bearing ring 52 is driven to rise by the lifting bracket 51, and the vibrator 54 and the vibration assembly 55 are driven to rise by the bearing ring 52. During the rising process, since the top of the stirring rod 552 is set in a triangular shape, the top of the stirring rod 552 will not accumulate materials, and the stirring rod 552 will not bring the materials out. When the trowel plate 553 rises to the upper surface of the material, the lifting assembly 4 can drive the drive motor 50 to be connected to the vibrator 54 again, and the vibration assembly 55 is driven to rotate again, and the top of the material can be smoothed by the trowel plate 553, which can ensure the flatness of the top of the material after molding.

[0039] See also Figure 1-Figure 7 The present invention provides a technical solution: the lining device 6 includes an inner sleeve 61, an expansion cavity 62 is opened inside the inner sleeve 61, a drawstring 63 is fixedly connected to the inner wall of the expansion cavity 62, one end of the drawstring 63 away from the inner wall of the expansion cavity 62 is fixedly connected to a pull plate 64, one end of the pull plate 64 away from the drawstring 63 is fixedly connected to a telescopic push rod 65, one end of the telescopic push rod 65 away from the pull plate 64 is fixedly connected to the inner wall of the expansion cavity 62, an air pipe 66 is fixedly connected to one side of the inner sleeve 61, the air pipe 66 is connected to the inside of the expansion cavity 62, one end of the air pipe 66 away from the inner sleeve 61 is connected to an annular pipe 67, one side of the annular pipe 67 is connected to an air pump 68 through an air inlet pipe, the inner sleeve 61 is arranged inside the preparation barrel 1 and fixedly connected to the inner wall of the preparation barrel 1, the air pipe 66 penetrates the preparation barrel 1 and extends to the outside of the preparation barrel 1;

[0040] When in use, the annular tube 67 is inflated through the air pump 68, and the gas inside the annular tube 67 enters the expansion cavity 62 through the air pipe 66. After the expansion cavity 62 is inflated, it expands and tightens, and the material inside the preparation barrel 1 can be supported by the inner sleeve 61. When the material needs to be removed after molding, the telescopic push rod 65 is controlled to shorten, and the telescopic push rod 65 pulls the drawstring 63, and the drawstring 63 drives the side wall of the inner sleeve 61 to move, so that the side of the inner sleeve 61 is separated from the molded material, and then the molded material can be taken out from the preparation barrel 1. The removal operation is convenient, because the drawstring 63 pulls the inner sleeve 61 away from the molding material, it starts to separate from the local part and then slowly diffuses, so the separation is relatively simple, and the expansion degree of the inner sleeve 61 can be controlled by controlling the air pressure inside the inner sleeve 61, thereby controlling the diameter of the molding material, and the adjustability is good.

[0041] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention are implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. A multi-component mortar forming and preparation machine for use in construction projects, comprising a preparation barrel (1) and a support platform (2), wherein the preparation barrel (1) is arranged on the support platform (2) and is fixedly connected to the support platform (2), a support frame (3) is fixedly connected to the top of the support platform (2), and a lifting assembly (4) is fixedly connected to the support frame (3), wherein the preparation barrel (1) is arranged on the support platform (2) and ...). Also includes: A vibrating device (5), the vibrating device (5) being arranged on the support platform (2), the vibrating device (5) being used to vibrate the mortar inside the preparation barrel (1), the vibrating device (5) being fixedly connected to the top of the support platform (2); A lining device (6), the lining device (6) being arranged inside the preparation barrel (1), the lining device (6) being used to separate the inner wall of the preparation barrel (1) from the mortar inside the barrel, the lining device (6) being fixedly connected to the inner wall of the preparation barrel (1); The vibrating device (5) comprises a lifting bracket (51), a bearing ring (52) is fixedly connected to the center position of the top of the lifting bracket (51), a positioning plate (53) is fixedly connected to the inner side of the bearing ring (52), a vibrator (54) passes through and is fixedly connected to the positioning plate (53), a vibrating assembly (55) is fixedly connected to the output end of the vibrator (54), a connecting frame (56) is fixedly connected to the top of the positioning plate (53), a connecting seat (57) is fixedly connected to the center position of the top of the connecting frame (56), a square groove is provided on the top of the connecting seat (57), a connecting block (58) is provided on the top of the connecting seat (57), an elastic telescopic rod (59) is fixedly connected to the top of the connecting block (58), and a driving motor (50) is fixedly connected to the top of the elastic telescopic rod (59); The bottom of the lifting bracket (51) is fixedly connected to the top of the support platform (2), and the top of the driving motor (50) is fixedly connected to the bottom of the lifting component (4); The vibrating assembly (55) comprises a main shaft (551), a stirring rod (552) is fixedly connected to the side of the main shaft (551), a trowel plate (553) is fixedly connected to the bottom side of the main shaft (551), a telescopic cavity (554) is provided inside the trowel plate (553), a telescopic plate (555) is slidably connected to the inner wall of the telescopic cavity (554), one end of the telescopic plate (555) passes through the telescopic cavity (554) and extends to the outside of the telescopic cavity (554), one end of the telescopic plate (555) located inside the telescopic cavity (554) is fixedly connected to a telescopic spring (556), and one end of the telescopic spring (556) away from the telescopic plate (555) is fixedly connected to the inner wall of the telescopic cavity (554).

2. A multi-component mortar forming and preparing machine for construction engineering according to claim 1, characterized in that: The bottom of the vibrating assembly (55) extends into the interior of the preparation barrel (1), and the shape of the bottom of the connecting block (58) is adapted to the square groove on the top of the connecting seat (57).

3. The multi-component mortar forming and preparing machine for construction engineering according to claim 1, characterized in that: The top of the main shaft (551) is fixedly connected to the output end of the vibrator (54), the stirring rod (552) is arranged in an arc shape, and the top of the stirring rod (552) is arranged in a triangular shape.

4. The multi-component mortar forming and preparing machine for construction engineering according to claim 1, characterized in that: The stirring rods (552) and the smearing plates (553) are provided in multiple groups and are evenly distributed on the main shaft (551), and a sealing ring is provided between the telescopic cavity (554) and the telescopic plate (555).

5. The multi-component mortar forming and preparing machine for construction engineering according to claim 1, characterized in that: The lining device (6) comprises an inner sleeve (61), an expansion cavity (62) is provided inside the inner sleeve (61), a drawstring (63) is fixedly connected to the inner wall of the expansion cavity (62), one end of the drawstring (63) away from the inner wall of the expansion cavity (62) is fixedly connected to a pull plate (64), one end of the pull plate (64) away from the drawstring (63) is fixedly connected to a telescopic push rod (65), one end of the telescopic push rod (65) away from the pull plate (64) is fixedly connected to the inner wall of the expansion cavity (62), one side of the inner sleeve (61) is fixedly connected to an air pipe (66), the air pipe (66) is connected to the inside of the expansion cavity (62), one end of the air pipe (66) away from the inner sleeve (61) is connected to an annular tube (67), and one side of the annular tube (67) is connected to an air pump (68) through an air intake pipe.

6. The multi-component mortar forming and preparing machine for construction engineering according to claim 5, characterized in that: The inner liner (61) is arranged inside the preparation barrel (1) and is fixedly connected to the inner wall of the preparation barrel (1); the air pipe (66) passes through the preparation barrel (1) and extends to the outside of the preparation barrel (1).

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