Cement grouting device for road and bridge construction

Abstract

This utility model discloses a cement grouting device for road and bridge construction, relating to the field of cement grouting technology. It includes a base, with a concrete hopper fixedly connected to one end of the top of the base, and an alternating telescopic cylinder fixedly connected to the center of the top surface of the base. A control box is fixedly connected to the top surface of the alternating telescopic cylinder, and a storage pipe is fixedly connected to one side of the outer wall of the alternating telescopic cylinder. Multiple deep storage holes are opened on both sides of the storage pipe. This utility model uses a clamping spring, a clamping pipe fitting, and a clamping pipe fitting at one end inside the deep storage holes. The continuous elastic force of the clamping spring pushes the clamping pipe fitting, ensuring that the clamping pipe fitting always maintains a tight fit with the end of the suction pipe, avoiding the wear on the metal surface caused by traditional rigid contact. When the clamping pipe fitting experiences slight wear due to long-term use, the clamping spring can automatically compensate for the gap, maintaining sealing pressure and preventing grout leakage and pressure loss due to increased sealing gap.

Description

Technical Field

[0001] This utility model relates to the field of cement grouting technology, specifically a cement grouting device for road and bridge construction. Background Technology

[0002] Cement grouting refers to mixing cement and water in a certain proportion to make a slurry, which fills voids and reinforces the structure, thereby improving the load-bearing capacity, impermeability and stability of the grouted body. For example, it can prevent leakage in water conservancy projects and reinforce building foundations. It is widely used in water conservancy and hydropower, building foundations, roads and bridges, mining tunnels and other engineering fields, and is especially suitable for dealing with uneven settlement of foundations, repairing cracks in concrete structures or waterproofing underground projects.

[0003] To ensure effectiveness, existing alternating cement grouting pumps maintain a tight seal between the valve and the end of the distribution pipeline during rotation and switching. The metal contact surfaces of the valve and the pipeline end are subjected to high pressure and relative friction over a long period of time. Wear on the contact surfaces leads to a gradual increase in the sealing gap, resulting in pumping pressure loss and affecting the stability of the device during the grouting process. In view of this, we provide a cement grouting device for road and bridge construction. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a cement grouting device for road and bridge construction.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a cement grouting device for road and bridge construction, comprising a base, a concrete hopper fixedly connected to one end of the top of the base, an alternating telescopic cylinder fixedly connected to the center of the top surface of the base, a control box fixedly connected to the top surface of the alternating telescopic cylinder, a storage pipe fixedly connected to one side of the outer wall of the alternating telescopic cylinder, multiple deep storage holes opened on both sides of the inside of the storage pipe, a retaining spring sleeved at one end of the deep storage hole, a piston rod slidably connected to one end of the deep storage hole, a retaining pipe fitting slidably connected to one end of the deep storage hole, a retaining pipe fitting fixedly connected to one end of the retaining pipe fitting, and a corrugated telescopic pipe fixedly connected to one end of the retaining pipe fitting.

[0006] As mentioned above, a plurality of circular through holes are provided on one side of the outer wall of the concrete hopper, and the circular through holes are interconnected with the material storage deep hole; The inner cavity of the concrete hopper is rotatably connected to a suction pipe via a rotating shaft, and a discharge port is added to one side of the outer wall of the concrete hopper. The discharge port is connected to one end of the suction pipe, and the bottom end of the suction pipe is aligned with one of the circular through holes.

[0007] As described above, a swing tube is rotatably connected to one side of the inside of the concrete hopper, and a swing component is added to the top of the swing tube. Multiple telescopic cylinders are rotatably connected to one side of the outer wall of the concrete hopper, and the multiple telescopic cylinders are symmetrically arranged on both sides of the swing tube. The telescopic end of the telescopic cylinder is rotatably connected to one side of the swing component through a rotating shaft.

[0008] As described above, a metal swing arm is fixedly connected to one end of the outer wall of the swing tube, and the bottom end of the metal swing arm is fixedly connected to the top end of one end of the suction tube. The multiple telescopic cylinders and alternating telescopic oil cylinders are all connected by wires to the control box.

[0009] As described above, the telescopic end of the alternating telescopic cylinder is fixedly connected to the ends of multiple piston rods.

[0010] As described above, the two ends of the corrugated telescopic tube are respectively fixedly connected to the outer wall of the abutment fitting and the inner wall of the storage deep hole, and the corrugated telescopic tube isolates the abutment spring from the inner cavity of the storage deep hole.

[0011] As described above, one end of the clamping fitting is in close contact with one end of the suction pipe, and the outer surface of the clamping fitting is coated with a rubber coating.

[0012] Compared with existing technologies, this cement grouting device for road and bridge construction has the following advantages: I. This utility model provides a clamping spring, a clamping pipe fitting, and a clamping tube fitting inside one end of the deep storage hole. The clamping spring continuously pushes the clamping pipe fitting, ensuring that the clamping pipe fitting always maintains a tight fit with the end of the suction pipe. This avoids the wear on the metal surface caused by traditional rigid contact. When the clamping pipe fitting experiences slight wear due to long-term use, the clamping spring can automatically compensate for the gap, maintain the sealing pressure, and prevent slurry leakage and pressure loss due to increased sealing gap.

[0013] II. The control box of this utility model coordinates the timing of the actions of multiple telescopic cylinders and alternating telescopic hydraulic cylinders through a built-in chip program. This ensures that when the swinging pipe drives the suction pipe to switch docking positions, the piston rod of the alternating telescopic hydraulic cylinder is exactly in the intermittent state of suction or discharge. This makes the swing angle of the telescopic cylinder match the extension stroke of the alternating telescopic hydraulic cylinder. When the end of the suction pipe is aligned with the circular through hole, the corresponding piston rod moves outward to discharge material. When the end of the suction pipe leaves the circular through hole, the corresponding piston rod moves inward to complete the suction.

[0014] Other advantages, objectives and features of this invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination or study, or may be taught from the practice of this invention. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a top view of the present invention; Figure 3 This is a top view of a partial cross-section of the material storage tube of this utility model; Figure 4 This is a side sectional view of the material storage pipe and concrete hopper of this utility model. Figure 5 This utility model Figure 4 A partial structural diagram of A in the middle; Figure 6 This is a partial three-dimensional structural diagram of the concrete hopper of this utility model; Figure 7 This is a partial three-dimensional structural diagram of the suction tube of this utility model.

[0016] In the diagram: 1. Base; 2. Concrete hopper; 201. Circular through hole; 202. Suction pipe; 203. Discharge port; 204. Swing fitting; 2041. Swing component; 2042. Metal swing arm; 205. Telescopic cylinder; 3. Alternating telescopic cylinder; 301. Control box; 302. Material storage pipe; 3021. Material storage deep hole; 3022. Clamping spring; 3023. Piston rod; 3024. Clamping pipe fitting; 3025. Clamping pipe fitting; 3026. Corrugated telescopic pipe. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] like Figure 1-7As shown, this utility model provides a technical solution: a cement grouting device for road and bridge construction, including a base 1, a concrete hopper 2 fixedly connected to one end of the top of the base 1, an alternating telescopic cylinder 3 fixedly connected to the center of the top surface of the base 1, a control box 301 fixedly connected to the top surface of the alternating telescopic cylinder 3, a storage pipe 302 fixedly connected to one side of the outer wall of the alternating telescopic cylinder 3, a plurality of storage holes 3021 opened on both sides inside the storage pipe 302, a retaining spring 3022 sleeved at one end inside the storage hole 3021, a piston rod 3023 slidably connected to one end inside the storage hole 3021, a retaining pipe fitting 3024 slidably connected to one end inside the storage hole 3021, a retaining pipe fitting 3025 fixedly connected to one end of the retaining pipe fitting 3024, and a corrugated telescopic pipe 3026 fixedly connected to one end of the retaining pipe fitting 3024.

[0019] By setting a clamping spring 3022, abutting pipe fitting 3024 and abutting pipe fitting 3025 at one end inside the deep storage hole 3021, and by using the continuous elastic force of the clamping spring 3022 to push the abutting pipe fitting 3024, the abutting pipe fitting 3025 is always kept in close contact with the end of the suction pipe 202, avoiding the wear of metal surfaces caused by traditional rigid contact. When the abutting pipe fitting 3025 shows slight wear due to long-term use, the clamping spring 3022 can push the abutting pipe fitting 3025 to shift and compensate for the gap.

[0020] like Figure 4 and Figure 6 As shown above, a plurality of circular through holes 201 are provided on one side of the outer wall of the concrete hopper 2, and the circular through holes 201 are connected to the material storage deep hole 3021. The inner cavity of the concrete hopper 2 is rotatably connected to a suction pipe 202 via a rotating shaft, and a discharge port 203 is added to one side of the outer wall of the concrete hopper 2. The discharge port 203 is connected to one end of the suction pipe 202, and the bottom end of the suction pipe 202 is aligned with one of the circular through holes 201.

[0021] The circular through hole 201 on one side of the concrete hopper 2 is connected to the storage hole 3021. When the bottom of the suction pipe 202 is aligned with the circular through hole 201, the suction efficiency can be improved to a certain extent.

[0022] like Figure 4-7 As shown, a swing pipe 204 is rotatably connected to one side of the inside of the concrete hopper 2, and a swing element 2041 is added to the top of the swing pipe 204. Multiple telescopic cylinders 205 are rotatably connected to one side of the outer wall of the concrete hopper 2, and the multiple telescopic cylinders 205 are symmetrically arranged on both sides of the swing pipe 204. The telescopic end of the telescopic cylinder 205 is rotatably connected to one side of the swing element 2041 through a rotating shaft.

[0023] By cooperating with each other, multiple telescopic cylinders 205 drive the swing component 2041 to swing the swing tube 204, which can quickly switch the suction tube 202 between different circular through holes 201.

[0024] like Figure 4-7 As shown, a metal swing arm 2042 is fixedly connected to one end of the outer wall of the swing tube 204, and the bottom end of the metal swing arm 2042 is fixedly connected to the top end of one end of the suction pipe 202. Multiple telescopic cylinders 205 and alternating telescopic oil cylinders 3 are all connected by wires to the control box 301.

[0025] The metal swing arm 2042 connects the swing tube 204 and the suction tube 202. It can drive the suction tube 202 to swing synchronously, thereby improving the suction efficiency.

[0026] like Figure 1-5 As shown, the telescopic end of the alternating telescopic cylinder 3 is fixedly connected to the ends of multiple piston rods 3023.

[0027] The telescopic end of the alternating telescopic cylinder 3 is fixedly connected to multiple piston rods 3023. The alternating telescopic cylinder 3 can drive the multiple piston rods 3023 to move alternately, so that the material storage hole 3021 can perform material feeding operations alternately.

[0028] like Figure 1-5 As shown, the two ends of the corrugated telescopic tube 3026 are fixedly connected to the outer wall of the abutment fitting 3024 and the inner wall of the storage deep hole 3021, respectively, and the corrugated telescopic tube 3026 isolates the clamping spring 3022 from the inner cavity of the storage deep hole 3021.

[0029] The corrugated expansion tube 3026 isolates the clamping spring 3022 from the inner cavity of the storage deep hole 3021, which can prevent cement slurry from entering the spring area and ensure that sand and gravel particles in the slurry cannot enter the gap between the layers of the clamping spring 3022, causing jamming or corrosion and wear.

[0030] like Figure 1-5 As shown, one end of the clamping fitting 3025 is in close contact with one end of the suction pipe 202, and the outer surface of the clamping fitting 3025 is coated with a rubber coating.

[0031] The tight fit between the fitting 3025 and the suction pipe 202 enhances the sealing effect.

[0032] It should be noted that the axis of the swing tube 204 is coaxial with the axis of one end of the suction tube 202, and their center lines are completely coincident. When the swing tube 204 rotates around its own axis, one end of the suction tube 202 is fixed around the coaxial axis, and the other end rotates synchronously along the circumferential trajectory, so that the suction port at the bottom of the suction tube 202 switches between multiple different circular through holes 201 in the concrete hopper 2. The outer surface of the clamping tube 3025 is sprayed with a rubber coating, which can increase the friction between the clamping tube 3025 and the inner wall of the storage hole 3021. When the end of the suction tube 202 leaves the outer wall of the clamping tube 3025, it can temporarily constrain the clamping tube 3025, slow down its advancing speed under the action of the clamping spring 3022, and reduce the docking jamming caused by excessive displacement of the clamping tube 3025 with the suction tube 202.

[0033] Working Principle: During road and bridge construction, workers pour the well-mixed cement slurry into the concrete hopper 2. Then, the control box 301 starts the equipment. First, the telescopic cylinders 205 on both sides of the concrete hopper 2 extend and retract alternately. This, through the swinging component 2041, drives the swinging tube 204 to rotate around its axis. The other end of the suction pipe 202 swings in a fan shape around the axis of the swinging tube 204, sequentially aligning with multiple circular through holes 201 on the outer wall of the concrete hopper 2. When the bottom of the suction pipe 202 aligns with one of the circular through holes 201, the control box 301 then uses the alternating telescopic cylinder 3 to drive the corresponding piston rod 3023 to push the slurry outwards. The slurry enters the suction pipe 202 through the circular through hole 201 and... Discharge is completed through outlet 203. When suction pipe 202 leaves circular through hole 201, piston rod 3023 is driven by alternating telescopic cylinder 3 to slowly retract, sucking grout from concrete hopper 2 and temporarily storing it. Under the centralized control of control box 301, alternating telescopic cylinder 3 drives multiple sets of piston rods 3023 to move alternately, coordinating with the periodic swing of suction pipe 202 to switch circular through hole 201, cyclical continuous operation, ensuring uninterrupted grouting process and improving construction efficiency. When the contact surface between clamping fitting 3025 and suction pipe 202 gradually wears as working time increases, clamping spring 3022 pushes clamping fitting 3024 to move towards the end of suction pipe 202 to compensate for the gap caused by wear and ensure that the sealing surface is always tightly fitted.

[0034] 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 grouting device for road and bridge construction, comprising a base (1), characterized in that: A concrete hopper (2) is fixedly connected to one end of the top of the base (1), and an alternating telescopic cylinder (3) is fixedly connected to the center of the top surface of the base (1). A control box (301) is fixedly connected to the top surface of the alternating telescopic cylinder (3), and a storage pipe (302) is fixedly connected to one side of the outer wall of the alternating telescopic cylinder (3). Multiple storage holes (3021) are opened on both sides of the inside of the storage pipe (302), and a retaining spring (3022) is sleeved at one end of the storage hole (3021). A piston rod (3023) is slidably connected to one end of the storage hole (3021), and a retaining pipe fitting (3024) is slidably connected to one end of the storage hole (3021). A retaining pipe fitting (3025) is fixedly connected to one end of the retaining pipe fitting (3024), and a corrugated telescopic pipe (3026) is fixedly connected to one end of the retaining pipe fitting (3024).

2. The cement grouting device for road and bridge construction according to claim 1, characterized in that: The concrete hopper (2) has multiple circular through holes (201) on one side of its outer wall, and the circular through holes (201) are connected to the material storage deep hole (3021); The inner cavity of the concrete hopper (2) is rotatably connected to a suction pipe (202) via a rotating shaft, and a discharge port (203) is added to one side of the outer wall of the concrete hopper (2). The discharge port (203) is connected to one end of the suction pipe (202), and the bottom end of the suction pipe (202) is aligned with one of the circular through holes (201).

3. The cement grouting device for road and bridge construction of claim 2, characterized in that: The concrete hopper (2) is rotatably connected to one side of the interior of the swaying pipe (2), and a swaying component (2041) is added to the top of the swaying pipe (204). Multiple telescopic cylinders (205) are rotatably connected to one side of the outer wall of the concrete hopper (2), and the multiple telescopic cylinders (205) are symmetrically arranged on both sides of the swaying pipe (204). The telescopic end of the telescopic cylinder (205) is rotatably connected to one side of the swaying component (2041) through a rotating shaft.

4. The cement grouting device for road and bridge construction of claim 3, characterized in that: A metal swing arm (2042) is fixedly connected to one end of the outer wall of the swing tube (204), and the bottom end of the metal swing arm (2042) is fixedly connected to the top end of one end of the suction pipe (202). Multiple telescopic cylinders (205) and alternating telescopic oil cylinders (3) are all connected by wires to the control box (301).

5. The cement grouting device for road and bridge construction of claim 1, characterized in that: The telescopic end of the alternating telescopic cylinder (3) is fixedly connected to the ends of multiple piston rods (3023).

6. The cement grouting device for road and bridge construction of claim 5, characterized in that: The two ends of the corrugated telescopic tube (3026) are fixedly connected to the outer wall of the abutting pipe fitting (3024) and the inner wall of the storage deep hole (3021), respectively, and the corrugated telescopic tube (3026) isolates the clamping spring (3022) from the inner cavity of the storage deep hole (3021).

7. The cement grouting device for road and bridge construction of claim 6, characterized in that: One end of the clamping fitting (3025) is in close contact with one end of the suction pipe (202), and the outer surface of the clamping fitting (3025) is coated with a rubber coating.

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