Precast concrete grouting equipment

Abstract

The invention relates to precast concrete grouting equipment, and belongs to the technical field of grouting equipment, the precast concrete grouting equipment comprises a device main body, the outer wall of the device main body is provided with a conveying cylinder, the outer wall of the conveying cylinder is fixedly connected with a feeding cylinder, one end of the conveying cylinder is fixedly connected with a slurry conveying head, and the outer wall of the slurry conveying head is provided with a connector; the device comprises a device body, a connecting head is fixedly connected to the outer wall of the device body, a grouting pipe is fixedly connected to the outer wall of the connecting head, a mounting plate is detachably connected to the outer wall of the device body, and a mechanical arm is mounted at the top of the mounting plate. Through operation of the mechanical arm, the grouting position of the grouting head is adjusted in a multi-dimensional mode, when the switching rod drives the grouting sprayers of different sizes to be switched for use, the grouting sprayers are used in different pouring environments, and the using flexibility and efficiency of the grouting equipment in different environments are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of grouting equipment, in particular to a concrete prefabricated part grouting equipment. BACKGROUND

[0002] A concrete pouring machine, also known as a concrete pump, is a concrete machine that transports mixed concrete mixture to the pouring work surface along the pipeline. According to the principle of action, there are piston type, extrusion type and air pressure type, etc. The concrete prefabricated part grouting equipment is suitable for use in construction sites with large concrete pouring amount, narrow and small work surface and poor transportation conditions. It has high operation rate and flexible operation, and can horizontally or vertically transport concrete to the work position.

[0003] In the prior art, a concrete prefabricated part grouting equipment with publication number CN218803051U includes an equipment base and a grouting motor. The grouting motor is installed on the outer wall of the rear side upper end of the equipment base. The equipment base is provided with moving wheels on the front and rear sides and outside the left and right end outer walls. A speed reducer is arranged at the front end of the grouting motor. A new type of vibration dredging device is added inside the feeding hopper of the concrete prefabricated part grouting equipment. When the concrete inside the feeding hopper is too much and causes blockage, the vibration dredging device can be used to dredge the blockage. There are various dredging methods. The vibration dredging device can vibrate and dredge the blockage inside the feeding hopper through the vibration generated by the grouting equipment during operation. It can also be dredged by continuously pushing the vibration dredging rod up and down. This can increase the dredging efficiency of the feeding hopper and greatly increase the grouting efficiency of the concrete prefabricated part grouting equipment.

[0004] However, the existing grouting equipment can better transport the slurry during use, but the number and size of the grouting nozzles used are fixed. The use of different sizes of grouting nozzles in a single grouting pipe end is not high in switching and assembling. When the grouting equipment needs to pour concrete prefabricated parts in different environments, the whole grouting equipment needs to be frequently moved, increasing the complexity of the operator, reducing the efficiency of the prefabricated part grouting in different positions, and reducing the multifunctionality of the grouting equipment under daily use. It does not meet the needs of people. Therefore, we propose a concrete prefabricated part grouting equipment. SUMMARY

[0005] To solve the problems mentioned in the above background, the present application provides a concrete prefabricated part grouting equipment to solve the problems of the above background that the number and size of the grouting nozzle used are fixed, the use of different sizes of grouting nozzles in the end of a single grouting pipe is not high, the flow and stirring of the slurry in the feeding cylinder is not high, and the synchronous flushing and cleaning of the feeding cylinder and the inner cavity of the conveying cylinder by the water source is not high.

[0006] To achieve the above technical purposes, the technical scheme adopted by the present application is as follows: A concrete prefabricated part grouting equipment, comprising a device main body, an outer wall of the device main body is provided with a conveying cylinder, an outer wall of the conveying cylinder is fixedly connected with a feeding cylinder, one end of the conveying cylinder is fixedly connected with a slurry conveying head, an outer wall of the slurry conveying head is installed with a connecting head, an outer wall of the connecting head is fixedly connected with a grouting pipe; An outer wall of the device main body is detachably connected with a mounting plate, a top of the mounting plate is installed with a mechanical arm, one end of the mechanical arm is provided with a connecting rod, one end of the connecting rod is fixedly connected with a driving box, an outer wall of the driving box is provided with an electric push rod, one end of the electric push rod is fixedly connected with a sliding block in sliding connection with the outer wall of the driving box; An outer wall of the sliding block is provided with a first motor, an output end of the first motor is fixedly connected with a conversion rod, an outer wall of the conversion rod is fixedly connected with a fixed rod, an outer wall of the fixed rod is in sliding connection with a threaded sliding block, an outer wall of the threaded sliding block is detachably connected with a grouting nozzle, through the cooperation of the mechanical arm, the conversion rod, the threaded sliding block, the grouting nozzle and the connecting head, the grouting position of the grouting head is adjusted in multiple dimensions through the operation of the mechanical arm during the grouting and pouring of the concrete prefabricated part by the grouting equipment, and the grouting nozzle is used in different pouring environments when the conversion rod drives different sizes of grouting nozzles to switch and use, thereby improving the flexibility and efficiency of the grouting equipment in different environments.

[0007] Preferably, an outer wall profile of the conversion rod is cross-shaped, the fixed rod is provided with four groups, and the positions of the four groups of fixed rods are distributed around the conversion rod.

[0008] Preferably, an outer wall of the fixed rod is provided with a second motor, an output end of the second motor is fixedly connected with a first threaded rod in threaded connection with the outer wall of the threaded sliding block, an expansion slot is formed in the connecting part of the outer wall of the fixed rod and the threaded sliding block, the fixed rod and the grouting nozzle are one-to-one corresponding, and the sizes of the grouting nozzles provided on the fixed rod are all different.

[0009] Preferably, the grouting pipe is arranged on the rotation path of the conversion rod, and the grouting pipe is arranged on the expansion path of the grouting nozzle.

[0010] Preferably, the top of the device body is provided with a third motor, the output end of the third motor is fixedly connected with a second threaded rod which is rotatably connected with the outer wall of the device body, and the outer wall of the second threaded rod is threadedly connected with a protective cover which is slidingly connected with the outer wall of the device body.

[0011] Preferably, the top of the protective cover is provided with a fourth motor, the output end of the fourth motor is fixedly connected with a rotating shaft, the outer wall of the rotating shaft is fixedly connected with a connecting rod, one end of the connecting rod is fixedly connected with a scraping rod which is in close contact with the inner wall of the feeding cylinder, and the outer wall of the rotating shaft is fixedly connected with a spiral roller.

[0012] Preferably, the scraping rods are annularly distributed about the center of rotation of the rotating shaft, the outer wall profile of the scraping rods is cylindrical, the outer wall profile of the spiral roller is conical, and the spiral roller and the connecting rod are alternately arranged on the outer wall of the rotating shaft.

[0013] Preferably, the outer wall of the protective cover is fixedly connected with a connecting toothed plate, the outer wall of the connecting toothed plate is engaged with a connecting gear which is rotatably connected with the outer wall of the device body, the top of the device body is provided with a water tank, the top of the water tank is provided with a connecting column, the center of rotation of the connecting gear is fixedly connected with a connecting shaft which is rotatably connected with the outer wall of the connecting column, and the outer wall of the connecting column is fixedly connected with a water delivery pipe which is fixedly connected with the top of the protective cover.

[0014] Preferably, one end of the connecting shaft is fixedly connected with a rotating plate, and the outer wall of the rotating plate is in close contact with a sealing ring which is fixedly connected with the inner wall of the connecting column.

[0015] Preferably, the outer wall of the slurry delivery head is provided with a suction head, the outer wall of the suction head is mounted with a suction pipe, and one end of the suction pipe is fixedly connected with a suction pump which is arranged on the outer wall of the device body.

[0016] Compared with the prior art, the present application has the following beneficial effects: 1、The mechanical arm, the conversion rod, the threaded sliding block, the grouting nozzle and the connecting head are used in cooperation, so that when the grouting equipment is used for grouting and pouring the concrete prefabricated part, the grouting position of the grouting head is adjusted in multiple dimensions through the operation of the mechanical arm, and when the conversion rod drives different sizes of grouting nozzles to switch and use, the grouting nozzles are used in different pouring environments, thereby improving the flexibility and efficiency of the grouting equipment in different environments.

[0017] 2、The present application can be used in the feeding of slurry into the feeding cylinder for conveying, by the cooperation of the protective cover, the rotating shaft, the scraper rod and the spiral roller, the rotating shaft drives the scraper rod to rotate along the inner wall of the feeding cylinder, the impurities adsorbed on the inner wall of the feeding cylinder are scraped and stirred synchronously, and under the rotation of the spiral roller, the upward and downward flowability of the slurry during stirring is driven, so as to reduce the hardening of the slurry during long-term use.

[0018] 3、The present application can be used in the feeding of slurry into the feeding cylinder for conveying, by the cooperation of the protective cover, the rotating shaft, the scraper rod and the spiral roller, the rotating shaft drives the scraper rod to rotate along the inner wall of the feeding cylinder, the impurities adsorbed on the inner wall of the feeding cylinder are scraped and stirred synchronously, and under the rotation of the spiral roller, the upward and downward flowability of the slurry during stirring is driven, so as to reduce the hardening of the slurry during long-term use. 4、The present application can be used in the feeding of slurry into the feeding cylinder for conveying, by the cooperation of the protective cover, the rotating shaft, the scraper rod and the spiral roller, the rotating shaft drives the scraper rod to rotate along the inner wall of the feeding cylinder, the impurities adsorbed on the inner wall of the feeding cylinder are scraped and stirred synchronously, and under the rotation of the spiral roller, the upward and downward flowability of the slurry during stirring is driven, so as to reduce the hardening of the slurry during long-term use. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is a schematic diagram of the overall structure of the present application; Figure 2 is a schematic diagram of the overall structure of the present application; Figure 3 is a schematic diagram of the internal structure of the feeding cylinder of the present application; Figure 4 is a schematic diagram of the position distribution structure of the scraper roller and the spiral roller of the present application; Figure 5 is a schematic diagram of the position distribution structure of the water tank of the present application; Figure 6 is a schematic diagram of the position distribution structure of the air pump and the air pipe of the present application; Figure 7 is a schematic diagram of the position distribution structure of the mechanical arm and the conversion rod of the present application; Figure 8 is a schematic diagram of the connection structure of the conversion rod and the fixed rod of the present application; Figure 9 is a schematic diagram of the position distribution structure of the threaded sliding block and the grouting nozzle of the present application; Figure 10 is a schematic diagram of the position distribution structure of the threaded sliding block and the grouting nozzle of the present application; Figure 5

[0020] The reference numbers in the drawings are: ​1, device main body; 2, conveying cylinder; 3, feeding cylinder; 4, grouting head; 5, connecting head; 6, grouting pipe; 7, mounting plate; 8, mechanical arm; 9, connecting rod; 10, drive box; 11, electric push rod; 12, sliding block; 13, first motor; 14, conversion rod; 15, fixed rod; 16, second motor; 17, first threaded rod; 18, threaded sliding block; 19, telescopic groove; 20, grouting nozzle; 21, third motor; 22, second threaded rod; 23, protective cover; 24, fourth motor; 25, rotating shaft; 26, link rod; 27, scraping rod; 28, spiral roller; 29, water tank; 30, connecting column; 31, water pipe; 32, connecting tooth plate; 33, connecting gear; 34, connecting shaft; 35, rotating plate; 36, sealing ring; 37, air pump; 38, air pipe; 39, air head. DETAILED DESCRIPTION

[0021] In order to further illustrate the technical means and effects taken by the present application to achieve the predetermined object of the application, the specific embodiments, structures, features and effects according to the present application are described in detail as follows in combination with the drawings and preferred embodiments. EMBODIMENT

[0022] Please refer to Figures 1 to 10The embodiment provides a concrete prefabricated part grouting equipment, which comprises a device main body 1, the outer wall of the device main body 1 is provided with a conveying cylinder 2, the outer wall of the conveying cylinder 2 is fixedly connected with a feeding cylinder 3, one end of the conveying cylinder 2 is fixedly connected with a slurry conveying head 4, the outer wall of the slurry conveying head 4 is installed with a connecting head 5, the outer wall of the connecting head 5 is fixedly connected with a grouting pipe 6, the outer wall of the device main body 1 is detachably connected with a mounting plate 7, the top of the mounting plate 7 is installed with a mechanical arm 8, one end of the mechanical arm 8 is provided with a connecting rod 9, one end of the connecting rod 9 is fixedly connected with a driving box 10, the outer wall of the driving box 10 is provided with an electric push rod 11, one end of the electric push rod 11 is fixedly connected with a sliding block 12 which is in sliding connection with the outer wall of the driving box 10, the outer wall of the fixed rod 15 is provided with a second motor 16, the output end of the second motor 16 is fixedly connected with a first threaded rod 17 which is in threaded connection with the outer wall of the threaded sliding block 18, the connecting part of the outer wall of the fixed rod 15 and the threaded sliding block 18 is provided with an expansion slot 19, the fixed rod 15 and the grouting nozzle 20 are one-to-one corresponding, and the sizes of the grouting nozzles 20 provided on the fixed rod 15 are all different, the outer wall of the sliding block 12 is provided with a first motor 13, the output end of the first motor 13 is fixedly connected with a conversion rod 14, the outer wall of the conversion rod 14 is fixedly connected with the fixed rod 15, the outer wall of the fixed rod 15 is in sliding connection with the threaded sliding block 18, the outer wall of the threaded sliding block 18 is detachably connected with the grouting nozzle 20, the outer wall profile of the conversion rod 14 is cross-shaped, the fixed rod 15 is provided with four groups, the positions of the four groups of fixed rods 15 are all distributed around the conversion rod 14, the grouting pipe 6 is arranged on the rotation path of the conversion rod 14, and the grouting pipe 6 is arranged on the expansion path of the grouting nozzle 20, through the cooperation of the mechanical arm 8, the conversion rod 14, the threaded sliding block 18, the grouting nozzle 20 and the connecting head 5, when the concrete prefabricated part is grouted by using the grouting equipment, the grouting position of the grouting head is adjusted in multiple dimensions through the operation of the mechanical arm 8, and when the conversion rod 14 drives the grouting nozzles 20 of different sizes to be switched and used, the grouting nozzle 20 is used in different pouring environments, and the flexibility and efficiency of the grouting equipment in different environments are improved.

[0023] As Figure 3 And Figure 4As shown, the top of the device body 1 is provided with a third motor 21, the output end of the third motor 21 is fixedly connected with a second threaded rod 22 which is rotatably connected with the outer wall of the device body 1, the outer wall of the second threaded rod 22 is threadedly connected with a protective cover 23 which is slidably connected with the outer wall of the device body 1, the top of the protective cover 23 is provided with a fourth motor 24, the output end of the fourth motor 24 is fixedly connected with a rotating shaft 25, the outer wall of the rotating shaft 25 is fixedly connected with a connecting rod 26, one end of the connecting rod 26 is fixedly connected with a scraping rod 27 which is fitted with the inner wall of the feeding cylinder 3, the outer wall of the rotating shaft 25 is fixedly connected with a spiral roller 28, the scraping rod 27 is annularly distributed about the rotation center of the rotating shaft 25, the outer wall profile of the scraping rod 27 is cylindrical, the outer wall profile of the spiral roller 28 is conical, the spiral roller 28 and the connecting rod 26 are alternately arranged on the outer wall of the rotating shaft 25, through the cooperation of the protective cover 23, the rotating shaft 25, the scraping rod 27 and the spiral roller 28, when the slurry is fed into the feeding cylinder 3 for conveying, the rotating shaft 25 drives the scraping rod 27 to rotate along the inner wall of the feeding cylinder 3, the impurities adsorbed on the inner wall of the feeding cylinder 3 are simultaneously scraped off and stirred, and under the rotation of the spiral roller 28, the slurry is driven to flow up and down during stirring, reducing the hardening of the slurry during long-term use.

[0024] As shown in Figure 5 and Figure 10 the outer wall of the protective cover 23 is fixedly connected with a connecting tooth plate 32, the outer wall of the connecting tooth plate 32 is engaged with a connecting gear 33 which is rotatably connected with the outer wall of the device body 1, the top of the device body 1 is provided with a water tank 29, the top of the water tank 29 is provided with a connecting column 30, the rotation center of the connecting gear 33 is fixedly connected with a connecting shaft 34 which is rotatably connected with the outer wall of the connecting column 30, the outer wall of the connecting column 30 is fixedly connected with a water delivery pipe 31 which is fixedly connected with the top of the protective cover 23, one end of the connecting shaft 34 is fixedly connected with a rotating plate 35, the outer wall of the rotating plate 35 is fitted with a sealing ring 36 which is fixedly connected with the inner wall of the connecting column 30, through the cooperation of the connecting shaft 34, the rotating plate 35, the connecting gear 33 and the water delivery pipe 31, when the protective cover 23 is opened and the slurry needs to be replenished, the protective cover 23 is raised, the connecting tooth plate 32 and the connecting gear 33 are driven to operate, the rotating plate 35 is turned over, the connecting column 30 is in an open state, and through the connection of the water delivery pipe 31, the water source enters the feeding cylinder 3 and the conveying cylinder 2, the slurry is washed and cleaned, improving the effect of flushing and cleaning impurities in the grouting equipment before replenishing the slurry.

[0025] As shown in Figure 6As shown, the outer wall of the slurry delivery head 4 is provided with an air suction head 39, the outer wall of the air suction head 39 is provided with an air suction pipe 38, one end of the air suction pipe 38 is fixedly connected with an air suction pump 37 provided on the outer wall of the device main body 1. Through the arrangement of the air suction pump 37, the air suction pipe 38 and the air suction head 39, the inside of the grouting device is in a vacuum state before the grouting device is used, which reduces the influence of air on the transportation of slurry in the device and improves the stability of the transportation of slurry in the device.

[0026] Working principle: As Figures 1-10 shown, when the concrete precast grouting device is used, after the slurry is delivered into the feeding cylinder 3, the third motor 21 is turned on to rotate the second threaded rod 22, which drives the protective cover 23 to move downward along the outer wall of the device main body 1, so that the protective cover 23 is attached to the bottom of the feeding cylinder 3, and the fourth motor 24 is turned on to rotate the connecting shaft 25, which drives the connecting rod 26 to rotate synchronously, the rotation of the connecting rod 26 drives the scraper 27 to rotate along the inner wall of the feeding cylinder 3, and under the rotation of the rotating shaft 25, the screw roller 28 rotates synchronously, so that the slurry flows and stirs in the feeding cylinder 3, improving the fluidity of the slurry in the feeding cylinder 3, and under the action of the delivery cylinder 2, the slurry flows out through the slurry delivery head 4, and under the installation of the connecting head 5, the slurry flows out from the end of the grouting pipe 6, achieving the effect of convenient pouring of the slurry; When the slurry flows out from the end of the grouting pipe 6, according to the use position of the grouting nozzle 20, the mechanical arm 8 is driven, and under the connection of the grouting nozzle 20 and the end of the grouting pipe 6, the use position of the grouting nozzle 20 is adjusted in multiple dimensions, improving the flexible construction effect of the grouting nozzle 20 on different position grouting holes; and according to the needs of the grouting environment, the flexibility of switching different sizes of grouting nozzles 20 is improved, the first motor 13 is turned on to rotate the conversion rod 14, which drives the fixed rod 15 to rotate synchronously, the second motor 16 is turned on to rotate the first threaded rod 17, which drives the threaded block 18 to slide along the inner wall of the telescopic slot 19, and the electric push rod 11 is turned on to drive the sliding block 12 to slide along the outer wall of the drive box 10, the switched grouting nozzle 20 and the end of the grouting pipe 6 are assembled and used; After the use of the slurry in the feeding cylinder 3 is completed, the third motor 21 is reversely driven to drive the protective cover 23 to move upward, and under the connection of the connecting tooth plate 32, the connecting gear 33 is driven to rotate, the rotation of the connecting gear 33 drives the rotating plate 35 to rotate through the connection of the connecting shaft 34, so that the connecting column 30 is in an open state, and under the operation of the connecting pump, the water in the water tank 29 is pumped into the feeding cylinder 3 through the water delivery pipe 31, and the impurities existing in the grouting device after use are washed and cleaned through the delivery cylinder 2.

[0027] The above merely describes preferred embodiments of the present application, and is not intended to limit the present application in any form. Although the present application has been described above with preferred embodiments, it is not intended to limit the present application, and any person skilled in the art can make some changes or modifications to the above disclosed technical content to obtain equivalent embodiments with equivalent changes, as long as the changes or modifications do not deviate from the technical solutions of the present application. Any modification, equivalent change and modification made to the above embodiments according to the technical essence of the present application still falls within the scope of the technical solutions of the present application.

Claims

1. A grouting device for precast concrete components, comprising a main body (1), characterized in that: The outer wall of the main body (1) of the device is provided with a conveying cylinder (2), the outer wall of the conveying cylinder (2) is fixedly connected with a feeding cylinder (3), one end of the conveying cylinder (2) is fixedly connected with a slurry conveying head (4), the outer wall of the slurry conveying head (4) is installed with a connector (5), and the outer wall of the connector (5) is fixedly connected with a grouting pipe (6). The outer wall of the main body (1) of the device is detachably connected to an installation plate (7). A mechanical arm (8) is installed on the top of the installation plate (7). A connecting rod (9) is provided at one end of the mechanical arm (8). A drive box (10) is fixedly connected at one end of the connecting rod (9). An electric push rod (11) is provided on the outer wall of the drive box (10). A sliding block (12) that is slidably connected to the outer wall of the drive box (10) is fixedly connected at one end of the electric push rod (11). The outer wall of the sliding block (12) is provided with a first motor (13), the output end of the first motor (13) is fixedly connected to a conversion rod (14), the outer wall of the conversion rod (14) is fixedly connected to a fixing rod (15), the outer wall of the fixing rod (15) is slidably connected to a threaded slider (18), and the outer wall of the threaded slider (18) is detachably connected to a grouting nozzle (20).

2. The precast concrete grouting equipment according to claim 1, characterized in that: The outer wall of the conversion rod (14) is cross-shaped, and four sets of fixing rods (15) are provided, with the four sets of fixing rods (15) distributed around the conversion rod (14).

3. The grouting equipment for precast concrete components according to claim 1, characterized in that: The outer wall of the fixed rod (15) is provided with a second motor (16), and the output end of the second motor (16) is fixedly connected to a first threaded rod (17) that is threaded to the outer wall of the threaded slider (18). The connection between the outer wall of the fixed rod (15) and the threaded slider (18) is provided with a telescopic groove (19). The fixed rod (15) and the grouting nozzle (20) are set in a one-to-one correspondence, and the grouting nozzles (20) set on the fixed rod (15) are all different in size.

4. The grouting equipment for precast concrete components according to claim 1, characterized in that: The grouting pipe (6) is located on the rotation path of the conversion rod (14) and on the extension path of the grouting nozzle (20).

5. A precast concrete grouting device according to claim 1, characterized in that: The top of the device body (1) is provided with a third motor (21), and the output end of the third motor (21) is fixedly connected to a second threaded rod (22) that is rotatably connected to the outer wall of the device body (1). The outer wall of the second threaded rod (22) is threadedly connected to a protective cover (23) that is slidably connected to the outer wall of the device body (1).

6. A precast concrete grouting device according to claim 5, characterized in that: The protective cover (23) is provided with a fourth motor (24) at the top. The output end of the fourth motor (24) is fixedly connected to a rotating shaft (25). The outer wall of the rotating shaft (25) is fixedly connected to a connecting rod (26). One end of the connecting rod (26) is fixedly connected to a scraper (27) that fits against the inner wall of the feeding cylinder (3). The outer wall of the rotating shaft (25) is fixedly connected to a spiral roller (28).

7. A precast concrete grouting device according to claim 6, characterized in that: The scraper (27) is arranged in a ring about the rotation center of the rotating shaft (25). The outer wall profile of the scraper (27) is cylindrical. The outer wall profile of the spiral roller (28) is conical. The spiral roller (28) and the connecting rod (26) are alternately distributed on the outer wall of the rotating shaft (25).

8. A precast concrete grouting device according to claim 5, characterized in that: The outer wall of the protective cover (23) is fixedly connected to a connecting toothed plate (32), and the outer wall of the connecting toothed plate (32) is engaged with a connecting gear (33) that is rotatably connected to the outer wall of the device body (1). A water tank (29) is provided on the top of the device body (1), and a connecting column (30) is provided on the top of the water tank (29). The rotation center of the connecting gear (33) is fixedly connected to a connecting shaft (34) that is rotatably connected to the outer wall of the connecting column (30), and a water supply pipe (31) that is fixedly connected to the top of the protective cover (23) is fixedly connected to the outer wall of the connecting column (30).

9. A precast concrete grouting device according to claim 8, characterized in that: One end of the connecting shaft (34) is fixedly connected to the rotating plate (35), and the outer wall of the rotating plate (35) is fitted with a sealing ring (36) that is fixedly connected to the inner wall of the connecting column (30).

10. A precast concrete grouting device according to claim 1, characterized in that: The outer wall of the slurry delivery head (4) is provided with an air extraction head (39), and an air extraction pipe (38) is installed on the outer wall of the air extraction head (39). One end of the air extraction pipe (38) is fixedly connected to an air pump (37) located on the outer wall of the main body (1) of the device.

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