A grouting device for bridge construction

Abstract

This utility model discloses a grouting device for bridge engineering construction, belonging to the field of bridge engineering technology. It includes: a base plate and a mixing tank; a mounting cover fitted onto the upper end of the mixing tank, the mounting cover being located on the upper end of the base plate and internally connected to a drive shaft, the bottom end of the drive shaft extending into the mixing tank. This utility model, through first contact blocks located on the outer sides of multiple support sleeves and multiple second contact blocks at the bottom of the mixing tank, allows the mixing tank to reciprocate axially up and down with the periodic thrust generated at the contact points of the first and second contact blocks when the drive shaft rotates. This enhances the longitudinal convection of the grout and also causes the mixing tank to rotate in the opposite direction to the drive shaft, forming a three-dimensional composite mixing effect. This significantly improves the dispersion efficiency and mixing uniformity of cement particles, effectively shortens the mixing cycle, and thus improves the efficiency of grouting operations, enhancing the applicability and practicality of the equipment under complex working conditions.

Description

Technical Field

[0001] This utility model belongs to the field of bridge engineering technology, specifically relating to a grouting device for bridge construction. Background Technology

[0002] Bridge grouting equipment refers to mechanical devices used to inject grout into bridge structures or foundations. These devices mix cement, water, additives, and other materials in a specific ratio using a mixing unit to form a homogeneous grout. The grout is then pressurized using a plunger pump, screw pump, or hydraulic system and transported through pipelines to the injection holes. Under pressure, the grout seeps into structural cracks or foundation pores, solidifying to form a high-strength or low-permeability aggregate. Bridge grouting equipment not only fills concrete cracks or voids, improving the overall load-bearing capacity of bridges, but also seals seepage channels, preventing steel corrosion and concrete deterioration. It is widely used in bridge repair and reinforcement, new bridge foundations, tunnels and underground engineering, and special geological conditions.

[0003] Chinese Patent Publication No. CN222594625U relates to the field of construction grouting technology, specifically a bridge engineering grouting equipment, including a supporting base, a mixing tank, and a feeding platform. The mixing tank is located on the top right side of the supporting base, and the feeding platform is located on the top left side of the supporting base. A drive motor is located in the middle of the top of the mixing tank, and a stirring rod is fixedly connected to the bottom of the drive motor. A constant temperature tank is opened inside the stirring rod, and a heat-conducting cylinder is fixedly connected to the inner wall of the stirring rod. An electric heating rod is installed inside the heat-conducting cylinder, and a rotating disk is sleeved on the outer side of the stirring rod. Through the design and cooperation of the mixing tank, stirring rod, and electric heating rod, when the grout is mixed and produced, the electric heating rod can provide heat to the stirring rod from the inside out, and then the stirring rod can heat up the grout in the mixing tank, preventing the grout from being affected by the low temperature environment of the outside environment and causing premature solidification and hardening. At the same time, the stirring rod can also use an arc-shaped scraper to clean the inner wall of the mixing tank to prevent grout from adhering.

[0004] In practical use, this utility model typically utilizes a mixing component to mix cement and water. However, the mixing component structure of existing bridge engineering grouting equipment generally suffers from a design flaw of being too simple. It relies solely on a single mixing shaft for unidirectional mechanical agitation, making it difficult to create multi-dimensional slurry convection and shearing effects. This leads to cement particles easily agglomerating or unevenly distributing during the mixing process, thus affecting the uniformity and fluidity of the slurry. Due to the low mixing efficiency, the mixing time needs to be extended during construction to ensure slurry quality. This not only directly increases the work cycle but also weakens its applicability and economy in actual engineering due to the reduced equipment utilization rate. Utility Model Content

[0005] This utility model proposes a grouting device for bridge engineering construction to solve the problem of difficulty in quickly and fully mixing cement in the prior art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a grouting device for bridge engineering construction, comprising:

[0007] Base plate and mixing tank;

[0008] An installation cover is fitted onto the upper end of the mixing tank. The installation cover is located on the upper end of the base plate and is rotatably connected to a drive shaft inside. The bottom end of the drive shaft extends into the mixing tank. Multiple support sleeves are provided on the upper end of the base plate located at the bottom of the mixing tank.

[0009] The feed pipe is located on one side of the upper end of the mounting cover. The bottom of the mixing tank is inclined and equipped with a telescopic discharge pipe. A pump body is located on one side of the upper end of the base plate, and the pump body is connected to the telescopic discharge pipe.

[0010] Multiple stirring blades are all located on the outside of the drive shaft, and the multiple stirring blades are all arranged at an angle. The inner wall of the mixing tank is provided with multiple stirring shafts.

[0011] In order to make the cement mix more thoroughly, a first abutment block is provided on the outer side of each of the multiple support sleeves, and a multiple second abutment block is provided at the bottom of the mixing barrel. The multiple first abutment blocks and the multiple second abutment blocks are all hemispherical and staggered.

[0012] In a preferred embodiment, each of the plurality of support sleeves is provided with a limiting spring, and each of the plurality of limiting springs is provided with a support rod adapted to the support sleeve at its upper end, and the upper ends of the plurality of support rods extend to the outside.

[0013] In a preferred embodiment, the upper ends of the plurality of support rods are provided with the same snap-fit ​​ring with a cross-section in the shape of a "T". The bottom end of the mixing tank is provided with a snap-fit ​​groove that is adapted to the snap-fit ​​ring. The snap-fit ​​ring is located in the snap-fit ​​groove and is slidably connected to the side wall of the snap-fit ​​groove.

[0014] In a preferred embodiment, a drive motor is provided at the upper end of the mixing tank, and pulleys are provided at the output end of the drive motor and on the outside of the drive shaft, with the two pulleys sharing the same transmission belt.

[0015] In a preferred embodiment, an external toothed ring is provided on the outer side of the drive shaft, and a transmission wheel that meshes with the external toothed ring is rotatably connected to one side of the bottom end of the mounting cover. An internal toothed ring that meshes with the transmission wheel is provided on the inner wall of the mixing tank, and the size of the transmission wheel is larger than that of the internal toothed ring.

[0016] In order to evenly add cement into the mixing bucket, a material holding frame is provided on the outside of the drive shaft, and multiple material dropping holes are provided through the bottom of the material holding frame, with the bottom of the feed pipe located inside the material holding frame on one side.

[0017] In a preferred embodiment, the upper end of the drive shaft is provided with a feed groove, the feed groove is provided with a water inlet pipe, the upper end of the water inlet pipe extends to the outside, and the bottom end of the feed groove is provided with multiple water outlet holes.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] 1. This utility model, through the first contact block set on the outside of multiple support sleeves and multiple second contact blocks at the bottom of the mixing tank, can not only drive the mixing tank to move up and down along the axial direction by the periodic thrust generated at the contact point between the first and second contact blocks when the drive shaft rotates, thus enhancing the longitudinal convection of the slurry, but also drive the mixing tank to rotate in the opposite direction of the drive shaft, forming a composite stirring effect in three-dimensional space, significantly improving the dispersion efficiency and mixing uniformity of cement particles, effectively shortening the mixing cycle, thereby improving the efficiency of grouting operations and enhancing the applicability and practicality of the equipment under complex working conditions;

[0020] 2. This utility model, through the material holding frame set on the outside of the drive shaft, and the water inlet pipe and multiple water outlet holes in the feed groove inside the drive shaft, can uniformly feed the cement in the material holding frame and the water in the drive shaft into the mixing tank under the action of centrifugal force when the drive shaft rotates. This significantly improves the contact area and mixing efficiency of cement and water, so that the slurry has been pre-dispersed before entering the mixing tank, laying a uniform foundation for the subsequent mixing process, and ultimately improving the overall quality stability of the grouting material. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the main appearance of the structure of this utility model;

[0022] Figure 2 This is a schematic front cross-sectional view of the structure of this utility model;

[0023] Figure 3 This is a partial external view of the structure of this utility model;

[0024] Figure 4 This is a cross-sectional schematic diagram of the mounting sleeve and snap ring of the present invention.

[0025] In the diagram: 1. Base plate; 2. Mixing tank; 3. Mounting cover; 4. Drive shaft; 5. Support sleeve; 6. Feed pipe; 7. Telescopic discharge pipe; 8. Pump body; 9. Stirring blade; 10. Stirring shaft; 11. First contact block; 12. Second contact block; 13. Limiting spring; 14. Support rod; 15. Snap ring; 16. Drive motor; 17. Transmission belt; 18. External gear ring; 19. Transmission wheel; 20. Internal gear ring; 21. Material collection frame; 22. Discharge hole; 23. Water inlet pipe; 24. Water outlet. Detailed Implementation

[0026] 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. Example 1:

[0027] Please see Figure 1-4 This utility model provides a grouting device for bridge construction, comprising:

[0028] Base plate 1 and mixing tank 2;

[0029] Mounting cover 3 is fitted onto the upper end of mixing tank 2. Mounting cover 3 is set on the upper end of base plate 1 and is rotatably connected to drive shaft 4. The bottom end of drive shaft 4 extends into mixing tank 2. Multiple support sleeves 5 are provided on the upper end of base plate 1 located at the bottom of mixing tank 2.

[0030] The feed pipe 6 is located on one side of the upper end of the mounting cover 3. The bottom end of the mixing tank 2 is inclined and is equipped with a telescopic discharge pipe 7. The pump body 8 is located on one side of the upper end of the base plate 1 and is connected to the telescopic discharge pipe 7.

[0031] Multiple stirring blades 9 are all located on the outside of the drive shaft 4, and the multiple stirring blades 9 are all arranged at an angle. Multiple stirring shafts 10 are provided on the inner wall of the mixing tank 2.

[0032] Specifically, such as Figure 2 and Figure 4 As shown, multiple support sleeves 5 are provided with first contact blocks 11 on their outer sides, and multiple second contact blocks 12 are provided at the bottom of the mixing tank 2. The multiple first contact blocks 11 and multiple second contact blocks 12 are all hemispherical and are arranged in an alternating manner.

[0033] Through its design, when the mixing tank 2 rotates, multiple second contact blocks 12 will intermittently contact multiple first contact blocks 11, which can drive the mixing tank 2 to move up and down, adjust the position of the cement inside, and make it more fully and evenly mixed, thereby ensuring the quality of grouting in bridge engineering construction.

[0034] Specifically, such as Figure 4As shown, each of the multiple support sleeves 5 is provided with a limiting spring 13, and each of the multiple limiting springs 13 is provided with a support rod 14 that is adapted to the support sleeve 5. The upper ends of the multiple support rods 14 extend to the outside. The multiple limiting springs 13 can drive the multiple support rods 14 to return to their original positions, thereby realizing the up-and-down reciprocating movement of the mixing tank 2.

[0035] Specifically, such as Figure 2 and Figure 4 As shown, the upper ends of multiple support rods 14 are provided with the same "T"-shaped locking ring 15. The bottom end of the mixing tank 2 is provided with a locking groove that matches the locking ring 15. The locking ring 15 is located in the locking groove and is slidably connected to the side wall of the locking groove. The locking groove and the locking ring 15 can enable the mixing tank 2 to drive the multiple support rods 14 to move up and down without affecting the rotation of the mixing tank 2. The multiple support rods 14 can limit their up and down movement to prevent their position from shifting.

[0036] Specifically, such as Figure 2 and Figure 3 As shown, the upper end of the mixing tank 2 is equipped with a drive motor 16. The drive motor 16 is existing technology and will not be described in detail here. Both the output end of the drive motor 16 and the outer side of the drive shaft 4 are equipped with pulleys. The two pulleys are equipped with the same transmission belt 17. The output end of the drive motor 16 can drive the drive shaft 4 to rotate through the transmission belt 17.

[0037] Specifically, such as Figure 2 and Figure 3 As shown, an external gear ring 18 is provided on the outer side of the drive shaft 4. A transmission wheel 19 that meshes with the external gear ring 18 is rotatably connected to one side of the bottom end of the mounting cover 3. An internal gear ring 20 that meshes with the transmission wheel 19 is provided on the inner wall of the mixing tank 2. The size of the transmission wheel 19 is larger than that of the internal gear ring 20. When the drive shaft 4 rotates, it will drive the external gear ring 18 to rotate. The external gear ring 18 will drive the transmission wheel 19 to rotate. The transmission wheel 19 will drive the internal gear ring 20 and the mixing tank 2 to rotate. Through the transmission wheel 19, the mixing tank 2 and the drive shaft 4 can rotate in opposite directions, so that multiple mixing blades 9 and multiple mixing shafts 10 can rotate in opposite directions, further improving the cement mixing effect. The size of the transmission wheel 19 is larger than that of the internal gear ring 20, so that when the mixing tank 2 and the internal gear ring 20 move up and down, the transmission wheel 19 can drive the transmission wheel 19 and the mixing tank 2 to rotate. Example 2:

[0038] Please see Figure 1-4 This utility model provides a grouting device for bridge construction, comprising:

[0039] Base plate 1 and mixing tank 2;

[0040] Mounting cover 3 is fitted onto the upper end of mixing tank 2. Mounting cover 3 is set on the upper end of base plate 1 and is rotatably connected to drive shaft 4. The bottom end of drive shaft 4 extends into mixing tank 2. Multiple support sleeves 5 are provided on the upper end of base plate 1 located at the bottom of mixing tank 2.

[0041] The feed pipe 6 is located on one side of the upper end of the mounting cover 3. The bottom end of the mixing tank 2 is inclined and is equipped with a telescopic discharge pipe 7. The pump body 8 is located on one side of the upper end of the base plate 1 and is connected to the telescopic discharge pipe 7.

[0042] Multiple stirring blades 9 are all located on the outside of the drive shaft 4, and the multiple stirring blades 9 are all arranged at an angle. Multiple stirring shafts 10 are provided on the inner wall of the mixing tank 2.

[0043] Specifically, such as Figure 2 and Figure 3 As shown, a material holding frame 21 is provided on the outside of the drive shaft 4, and multiple material dropping holes 22 are provided through the bottom end of the material holding frame 21. The bottom end of the feed pipe 6 is located inside the material holding frame 21 on one side.

[0044] Through its design, the cement entering the mixing tank 2 through the feed pipe 6 falls onto the material holding frame 21, and is evenly discharged into the mixing tank 2 through the rotating material holding frame 21 and multiple material dropping holes 22, which further improves the uniformity of cement mixing, significantly improves the dispersion efficiency and mixing uniformity of cement particles, effectively shortens the mixing cycle, and thus improves the efficiency of grouting operations.

[0045] Specifically, such as Figure 1 , Figure 2 and Figure 3 As shown, a feed trough is provided at the upper end of the drive shaft 4, and a water inlet pipe 23 is provided inside the feed trough. The upper end of the water inlet pipe 23 extends to the outside, and multiple water outlet holes 24 are provided through the bottom end of the feed trough. The water inlet pipe 23 is an external water inlet component. When it introduces water into the feed trough, it will be discharged through multiple rotatable water outlet holes 24, ensuring the uniformity of cement mixing.

[0046] See Figure 1-4When using grouting equipment for bridge construction, cement is first fed into the mixing tank 2 through the feed pipe 6, and water is fed into the feed trough inside the drive shaft 4 through the water inlet pipe 23. Then, the drive motor 16 is started. The output end of the drive motor 16 drives the transmission belt 17 to rotate the drive shaft 4. The drive shaft 4 then rotates the material holding frame 21 and multiple water outlets 24, thus evenly adding cement and water into the mixing tank 2. This allows the grout to be pre-dispersed before entering the mixing tank 2. When the drive shaft 4 rotates, it drives the external gear ring 18 to rotate. Ring 18 drives transmission wheel 19 to rotate, transmission wheel 19 drives internal gear ring 20 to rotate, internal gear ring 20 drives mixing drum 2 to rotate in the opposite direction to drive shaft 4, thereby causing multiple mixing blades 9 and multiple mixing shafts 10 to rotate in opposite directions, improving the uniformity of cement mixing. When mixing drum 2 rotates, multiple second contact blocks 12 and multiple first contact blocks 11 will intermittently contact each other, which can drive mixing drum 2 to move up and down, thereby further improving the uniformity of cement mixing, effectively shortening the mixing cycle, and thus improving the efficiency of grouting operation.

[0047] 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 grouting device for bridge construction, characterized in that, include: Base plate (1) and mixing tank (2); The mounting cover (3) is fitted onto the upper end of the mixing tank (2). The mounting cover (3) is set on the upper end of the base plate (1) and is rotatably connected to the drive shaft (4). The bottom end of the drive shaft (4) extends into the mixing tank (2). Multiple support sleeves (5) are provided on the upper end of the base plate (1) at the bottom end of the mixing tank (2). The feed pipe (6) is located on one side of the upper end of the mounting cover (3). The bottom end of the mixing tank (2) is inclined and is provided with a telescopic discharge pipe (7). The upper side of the base plate (1) is provided with a pump body (8), which is connected to the telescopic discharge pipe (7). Multiple stirring blades (9) are arranged on the outside of the drive shaft (4), and the multiple stirring blades (9) are arranged at an angle. Multiple stirring shafts (10) are provided on the inner wall of the mixing tank (2).

2. The bridge engineering construction grouting device according to claim 1, characterized in that: Each of the support sleeves (5) has a first contact block (11) on its outer side, and the bottom of the mixing tank (2) has a number of second contact blocks (12). The first contact blocks (11) and the second contact blocks (12) are all hemispherical and staggered.

3. The bridge engineering construction grouting device according to claim 1, characterized in that: Each of the multiple support sleeves (5) is provided with a limiting spring (13), and each of the multiple limiting springs (13) is provided with a support rod (14) that is adapted to the support sleeve (5) at its upper end. The upper ends of the multiple support rods (14) extend to the outside.

4. The bridge engineering construction grouting device according to claim 3, characterized in that: The upper ends of the multiple support rods (14) are provided with the same cross-section "T" shaped snap ring (15), and the bottom end of the mixing tank (2) is provided with a snap groove that is adapted to the snap ring (15). The snap ring (15) is located in the snap groove and is slidably connected to the side wall of the snap groove.

5. The bridge engineering construction grouting device according to claim 1, characterized in that: The mixing tank (2) is equipped with a drive motor (16) at the upper end. The output end of the drive motor (16) and the outer side of the drive shaft (4) are both equipped with pulleys, and the two pulleys are equipped with the same transmission belt (17).

6. The bridge engineering construction grouting device according to claim 1, characterized in that: The drive shaft (4) is provided with an external toothed ring (18) on the outside. The bottom end of the mounting cover (3) is rotatably connected to a transmission wheel (19) that meshes with the external toothed ring (18). The inner wall of the mixing barrel (2) is provided with an internal toothed ring (20) that meshes with the transmission wheel (19). The size of the transmission wheel (19) is larger than that of the internal toothed ring (20).

7. The bridge engineering construction grouting device according to claim 1, characterized in that: The drive shaft (4) is provided with a material holding frame (21) on the outside. The bottom end of the material holding frame (21) is provided with multiple material dropping holes (22). The bottom end of the feed pipe (6) is located inside the material holding frame (21) on one side.

8. A bridge construction grouting device according to claim 1, characterized in that: The upper end of the drive shaft (4) is provided with a feeding groove, and a water inlet pipe (23) is provided in the feeding groove. The upper end of the water inlet pipe (23) extends to the outside, and multiple water outlet holes (24) are provided through the bottom end of the feeding groove.

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