Double-liquid grouting foundation reinforcing device

Abstract

The utility model discloses a double-liquid grouting foundation reinforcing device, which belongs to the technical field of grouting construction equipment and comprises containers for respectively accommodating grout. The material pumping mechanisms are used for pumping the slurry from the containers respectively; the buffer mechanism is connected with the output end of the pumping mechanism and is used for buffering the slurry pumped by the pumping mechanism; the mixer is used for mixing the slurry after pressure balance; a partition piece is arranged in a cavity of the balancer in a sliding mode and divides the cavity into a first cavity body and a second cavity body in sequence. The material pumping mechanism supplies slurry into the first chamber and the second chamber for buffering, and the slurry is output to the mixer through the one-way constant pressure valve to be mixed. According to the utility model, the liquid supply continuity and stability can be improved, and the double-liquid mixing effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of grouting construction equipment, and more specifically, to a double-liquid grouting foundation reinforcement device. Background Art

[0002] Grouting reinforcement is an important and commonly used reinforcement method for foundation engineering, especially soft soil foundation engineering. It mainly improves the strength of the soil by injecting a curing agent into the foundation soil structure, enhancing the overall anti-instability ability of the foundation, increasing the resistance of the passive soil, and reducing the displacement and deformation of the foundation structure. The main construction process of double-liquid grouting reinforcement includes: drilling grouting holes, preparing double grout (usually cement and water glass), and grouting construction. The double grout such as cement and water glass needs to be mixed according to the proportion immediately before being injected into the soil. The double grout's rapid solidification and expansion characteristics are used to improve the bearing capacity and stability of the foundation. If the mixing effect of the double grout such as cement and water glass is not good, such as inaccurate proportion control or uneven mixing, it is easy to cause premature or delayed solidification, affecting the construction quality. During this construction process, the grouting of cement and water glass is mainly completed by grouting equipment. For example, Chinese patent publication number CN110565628A discloses a dual-liquid grouting equipment for geotechnical engineering foundation reinforcement, which is provided with a chamber for accommodating cement slurry and water glass. A motor is used to drive the piston of a pumping mechanism to reciprocate through gear transmission, and materials are intermittently pumped out for dual-liquid grouting. Although the grouting efficiency is improved, the pumping process of this type of intermittent pumping mechanism is discontinuous, resulting in uneven slurry being pumped out, which affects the subsequent mixing of the two liquids. Utility Model Content

[0003] In view of the above problems, the purpose of the present utility model is to provide a double-liquid grouting foundation reinforcement device, which improves the problem of uneven liquid supply in the intermittent pumping mechanism and improves the double-liquid mixing effect.

[0004] In order to achieve these objectives of the present invention, the present invention provides a double-liquid grouting foundation reinforcement device, comprising:

[0005] Containers for separately containing slurries;

[0006] A pumping mechanism for respectively extracting slurry from the container;

[0007] A balancer connected to the output end of the pumping mechanism to buffer the slurry pumped out by the pumping mechanism;

[0008] and a mixer for mixing the slurry output from the balancer;

[0009] Among them, a partition is provided inside the cavity of the balancer to divide the cavity into a first chamber and a second chamber; the pumping mechanism supplies the slurry into the first chamber and the second chamber respectively, and after buffering, outputs it to the mixer for mixing.

[0010] In this embodiment, a balancer is designed to buffer the two slurries extracted by the extraction mechanism. The balancer has two chambers. When the slurries are intermittently pumped into the first chamber and the second chamber by the extraction mechanism, they are buffered. Then, the slurries are continuously output through the one-way constant pressure valve and supplied to the mixer smoothly and continuously, thereby ensuring accurate mixing of the two slurries and improving the dual-liquid mixing effect.

[0011] Preferably, the volume of the first chamber is larger than the volume of slurry extracted by the first pumping mechanism in a single reciprocating cycle, and the volume of the second chamber is larger than the volume of slurry extracted by the second pumping mechanism in a single reciprocating cycle, so that the slurry is buffered, the intermittent suction fluctuations of the pumping mechanism are weakened, and the continuity and stability of the feeding are improved.

[0012] Preferably, a one-way constant pressure valve is provided between the balancer and the mixer, so that the slurry is supplied to the mixer in a one-way constant pressure manner. The required pressure can be set as required.

[0013] Preferably, in order to further improve the mixing effect of the two liquids and reduce the slurry entering the opposite flow channel, the mixer is optimized and improved. The mixer includes: a three-way structure, a guide component and a pair of check components; the guide component is arranged at the internal intersection of the three-way structure and extends toward the outlet, and a first flow channel and a second flow channel are formed on both sides of the guide component. The check components are respectively rotatably arranged in the first flow channel and the second flow channel. When the slurry backflushes, the check components are pushed to block the respective flow channels, thereby reducing the slurry from entering the opposite flow channel.

[0014] Preferably, the first end of the non-return component is rotatably connected to the side of the guide component, and the second end is a movable end that can swing up and down, blocking the flow channel when swinging upward and opening the flow channel when swinging downward.

[0015] Preferably, the outlet end of the three-way structure is connected to a tapered cylinder, and the tip of the tapered cylinder forms the output end.

[0016] Preferably, spirally arranged protrusions are provided inside the outlet direction of the three-way structure or inside the conical cylinder to create vortexes to accelerate the slurry and promote uniform mixing of the two slurries, thereby improving the mixing effect.

[0017] Preferably, the extraction mechanism includes: a cylinder body, a piston mechanism, and a crank arm mechanism. The cylinder body has an extraction inlet and an extraction outlet, each of which is respectively provided with a one-way valve. The piston mechanism is slidably arranged inside the cylinder body, and changes the internal volume capacity of the cylinder body when sliding. The crank arm mechanism is connected to the piston mechanism and is used to transmit power to the piston mechanism to drive the piston to reciprocate.

[0018] Preferably, the container includes a first stirring barrel and a second stirring barrel, and the first stirring barrel and the second stirring barrel are both provided with a filter screen to separate the first stirring barrel and the second stirring barrel into an upper stirring space and a lower filtering space. The extraction space is connected to the filtering space, and a stirring mechanism is provided in the stirring space to stir the slurry, maintain homogeneity, and reduce precipitation. The filter screen prevents solid particles from entering the extraction mechanism.

[0019] Preferably, the driving motor drives the crank arm mechanism of the extraction mechanism to operate synchronously through the first transmission mechanism, and drives the stirring mechanism through the second transmission mechanism, so that a single motor can drive the extraction and stirring at the same time.

[0020] The utility model has at least the following beneficial effects:

[0021] The dual-liquid grouting foundation reinforcement device provided by the utility model can buffer the two slurries extracted by the extraction mechanism, weaken the fluctuations caused by the intermittent suction of the extraction mechanism, and allow the slurries to be supplied to the mixer smoothly and continuously, thereby improving the continuity and stability of the two slurries (such as cement and water glass), thereby improving the dual-liquid mixing effect.

[0022] The double-liquid grouting foundation reinforcement device of the utility model can mix the double liquids evenly, and effectively prevent the slurry in any direction from entering the opposite flow channel, thereby preventing the slurry from coagulating and clogging in the mixer.

[0023] Other advantages, objectives and features of the present invention will be reflected in part through the following description, and in part will be understood by those skilled in the art through research and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a structural schematic diagram of the balancer of the double-liquid grouting foundation reinforcement device of the utility model;

[0025] Figure 2 This is a structural diagram of a mixer of a double-liquid grouting foundation reinforcement device of the present invention;

[0026] Figure 3 This is a schematic diagram of the planar structure of the double-liquid grouting foundation reinforcement device of the utility model;

[0027] Figure 4 It is a side structural schematic diagram of the double-liquid grouting foundation reinforcement device of the utility model. DETAILED DESCRIPTION

[0028] The present invention is further described in detail below with reference to examples so that those skilled in the art can implement the invention with reference to the description.

[0029] It should be understood that terms such as “having”, “including” and “comprising” used herein do not preclude the existence or addition of one or more other elements or combinations thereof.

[0030] like Figures 1 to 4 As shown, the utility model is a double-liquid grouting foundation reinforcement device, comprising:

[0031] Containers 60 for respectively containing slurries;

[0032] A pumping mechanism 30 for extracting slurry from the container 60;

[0033] A balancer 10 connected to the output end of the extraction mechanism 30 for buffering the slurry extracted by the extraction mechanism 30;

[0034] and a mixer 20 for mixing the slurry;

[0035] Among them, such as Figure 1 As shown, a partition 103 is provided inside the cavity of the balancer 10, which divides the cavity into a first chamber 10 and a second chamber 102; the pumping mechanism 30 supplies the two slurries into the first chamber 101 and the second chamber respectively, and after buffering, they are output to the mixer 20 through a one-way constant pressure valve for mixing. The mixer 20 is connected to the grouting pipe, the grouting pipe is connected to the flower pipe, and is inserted into the grouting hole drilled in the foundation for grouting to achieve foundation reinforcement.

[0036] refer to Figure 3 and Figure 4 The container is preferably a barrel-shaped structure for convenient feeding and stirring. More specifically, the container includes a first mixing barrel 601 and a second mixing barrel 602, each for holding two different slurries, such as cement and water glass. Two pumping mechanisms 30 are connected to the first mixing barrel 601 and the second mixing barrel 602, respectively, to pump the two slurries into the first chamber and the second chamber of the balancer.

[0037] refer to Figure 1 Preferably, the balancer can be a tank, and the internal partition can be a partition plate. The partition plate 103 is fixed by bolts 104 or welded to the balancer. In the figure, the first chamber 101 receives slurry from the pumping mechanism through a first inlet pipe 105, and the liquid is supplied to the mixer 20 through a first output pipe 111 and a first one-way constant pressure valve 113. The second chamber 102 receives slurry from the pumping mechanism through a second inlet pipe 106, and the liquid is supplied to the mixer 20 through a second output pipe 112 and a second one-way constant pressure valve 114.

[0038] The advantage of this embodiment is that the balancer can cache the two slurries extracted by the extraction mechanism. Specifically, the balancer has two chambers. The slurries are cached when they are intermittently pumped into the first chamber and the second chamber by the extraction mechanism, balancing the intermittent extraction fluctuations, and then continuously output through the one-way constant pressure valve to supply liquid to the mixer smoothly and continuously, thereby improving the accuracy of dual-liquid grouting and improving the dual-liquid mixing effect.

[0039] like Figure 1 As shown, the volume of the first chamber is larger than the volume of slurry extracted by the first pumping mechanism in a single reciprocating cycle, and the volume of the second chamber is larger than the volume of slurry extracted by the second pumping mechanism in a single reciprocating cycle, achieving a caching effect, reducing output fluctuations, and balancing flow.

[0040] Further, in another embodiment, as Figure 1 As shown, a one-way constant pressure valve is provided between the balancer 10 and the mixer 20, including a first one-way constant pressure valve 113 provided on the first output pipe 111 and a second one-way constant pressure valve 114 provided on the second output pipe 112, so that the slurry is supplied to the mixer in a one-way and constant pressure manner, thereby improving the stability of the slurry supply to the mixer, making the ratio control accurate, and thereby improving the mixing effect.

[0041] In another embodiment, in order to further improve the mixing effect of the two liquids, the mixer 20 is optimized and improved, such as Figure 2 As shown, the mixer 20 includes: a three-way structure 21, a flow guide component 203 and a non-return component 205; the three-way structure 21 includes a first inlet 201, a second inlet 202 and an outlet 209, the flow guide component 203 is arranged at the intersection of the internal channels of the three-way structure 21 and extends towards the outlet 209. In the figure, the flow guide component 203 extends into the outlet 209, and the first flow channel 206 and the second flow channel 207 are formed on both sides of the flow guide component 203. The non-return component 205 is rotated by a hinge or a shaft. The guide member 203 is dynamically positioned on the side of the guide member 203 and is located within the first flow channel 206 and the second flow channel 207, respectively. The guide member 203 guides the slurry entering the first inlet 201 and the slurry entering the second inlet 202 from the flow channels on both sides (the first flow channel 206 and the second flow channel 207) to the outlet 209 of the three-way structure for intersection and mixing. When either slurry backflows, it pushes the check member 205 to rotate (in the example, it swings upward), thereby closing the corresponding flow channel and effectively preventing the slurry from the other direction from entering the opposite flow channel. In the example, the guide member 203 is fixed to the inner wall of the three-way structure. The two side surfaces of the guide member correspond to the first and second inlets, respectively, and the two side surfaces are configured as arc surfaces. The two curved side surfaces of the guide member achieve an optimal diversion effect.

[0042] Preferably, the cross-sections of the first flow channel and the second flow channel are equal.

[0043] In the example shown, the length of the check component is greater than the width of the first flow channel and the second flow channel, so that the flow channel can be sealed when it swings upward.

[0044] Preferably, the outlet 209 of the tee structure 21 is connected to a conical cylinder 22 , and the tip of the conical cylinder forms an output end 204 , which can be connected to a grouting pipe through a pipeline.

[0045] Preferably, a spirally arranged protrusion 208 is provided inside the outlet direction of the three-way structure. In the figure, the protrusion 208 is spirally arranged along the inner wall of the conical cylinder 22 to create a vortex and improve the mixing effect.

[0046] Further, in another embodiment, as Figure 3 As shown, the extraction mechanism 30 includes: a cylinder body 301, a piston mechanism 303, and a crank arm mechanism 302. The cylinder body 301 has an extraction inlet and an extraction outlet, both of which are respectively provided with a one-way valve, including a first one-way valve 303 provided at the extraction inlet and a second one-way valve 305 provided at the extraction outlet. The piston mechanism 303 is slidably provided inside the cylinder body 301, and changes the internal volume capacity of the cylinder body 301 when sliding to achieve suction. The crank arm mechanism 302 is connected to the piston mechanism 303. In the figure, one end of the crank arm mechanism 302 passes through the cylinder body 301 and is connected to the transmission mechanism, which is used to transmit the power of the drive motor to the piston mechanism 303 to drive the piston to reciprocate.

[0047] Further, in another embodiment, Figure 3 As shown, the container 60 includes a first mixing bucket 601 and a second mixing bucket 602. Figure 4 As shown, the first and second mixing barrels are both provided with filter screens 603, which divide the interior into an upper stirring space 605 and a lower filtering space 604. The extraction mechanism 30 is connected to the filtering space 604 to extract liquid from the filtering space. The stirring space 605 is provided with a stirring mechanism 70 to stir the slurry to maintain homogeneity and reduce precipitation. The filter screen filters the slurry to prevent solid particles from entering the extraction mechanism 30. During use, cement and water glass are added from above to the first and second mixing barrels 601 and 602, respectively. The stirring mechanism is activated to stir the slurry to maintain homogeneity. The slurry passes through the filter screen and enters the filtering space 604, and is then extracted by the extraction mechanism 30.

[0048] Further, in another embodiment, as Figure 3 and Figure 4As shown, the drive motor 40 drives the crank arm mechanism 302 of the material extraction mechanism 30 through the first transmission mechanism 50 for synchronous operation, and drives the stirring mechanism through the second transmission mechanism, so that a single motor can simultaneously drive the extraction and stirring. In the example, the first transmission mechanism 50 is a belt or chain transmission mechanism. A pulley or gear disk is coaxially arranged on the output shaft of the drive motor 40 to cooperate with the first transmission mechanism 50, thereby synchronously transmitting power to the material extraction mechanisms 30 on both sides. The second transmission mechanism includes a helical gear 401 arranged at one end of the output shaft of the drive motor 40, a helical gear disk 901 meshing with the helical gear 401, a transmission rod 903 coaxially connected to the helical gear disk 901, and a belt transmission mechanism 902 transmission-connected to the transmission rod 903. The belt transmission mechanism 902 is transmission-connected to the upper end of the stirring mechanism 70, thereby driving the stirring mechanism to rotate. In the example, a plurality of mounting brackets 701 are provided in both the first and second stirring barrels, and the stirring mechanism 70 is rotationally connected to the mounting brackets 701.

[0049] Further, in another embodiment, as Figure 3 and Figure 4 As shown, in order to facilitate movement, a cart 80 is provided for carrying and installing the container 60, the pumping mechanism 30, the driving motor 40, the balancer 10 and the mixer 20, etc.

[0050] An implementation process of the utility model is as follows:

[0051] like Figure 3 As shown, cement and water glass slurries are loaded into the first mixing barrel 601 and the second mixing barrel 602 respectively, the drive motor 40 is started, and the stirring mechanism 70 is driven to stir the slurry to keep it uniform. The drive motor 40 drives the extraction mechanism 30 to extract the slurry from the mixing barrel to the balancer. The balancer buffers the slurry and then supplies the liquid to the mixer through a one-way constant pressure valve. The mixer mixes the two slurries and then injects the mixed slurry into the foundation grouting hole through the grouting pipe and the flower pipe. The mixed slurry solidifies to achieve the effect of strengthening the foundation.

[0052] Although the embodiments of the present invention have been disclosed above, they are not limited to the applications listed in the specification and embodiment. They can be applied to various fields suitable for the present invention. For those familiar with the art, additional modifications can be easily realized.

Claims

1. A double-liquid grouting foundation reinforcement device, characterized in that: include: Containers for respectively containing slurries; the containers include a first stirring barrel and a second stirring barrel; A material extraction mechanism for extracting slurry from the container respectively; the material extraction mechanism includes a first material extraction mechanism and a second material extraction mechanism; A balancer is connected to the output end of the pumping mechanism to cache and pressure-balance the slurry extracted by the first pumping mechanism and the second pumping mechanism respectively; a partition is provided inside the cavity of the balancer to divide the cavity into a first chamber and a second chamber in sequence; the first pumping mechanism and the second pumping mechanism supply the slurry into the first chamber and the second chamber respectively, the volume of the first chamber is greater than the volume of the slurry extracted by the first pumping mechanism in a single reciprocating cycle, and the volume of the second chamber is greater than the volume of the slurry extracted by the second pumping mechanism in a single reciprocating cycle, so that the slurry is cached; a one-way constant pressure valve is provided between the balancer and the mixer, and the slurry output from the first chamber and the second chamber is supplied to the mixer for mixing after passing through the one-way constant pressure valve.

2. The double-liquid grouting foundation reinforcement device according to claim 1, characterized in that: The mixer includes: a three-way structure, a flow guide component and a pair of check components; the flow guide component is arranged at the intersection inside the three-way structure and extends towards the outlet, a first flow channel and a second flow channel are formed on both sides of the flow guide component, and the check components are rotatably arranged in the first flow channel and the second flow channel respectively.

3. The double-liquid grouting foundation reinforcement device according to claim 2, characterized in that: The three-way structure includes: a first inlet, a second inlet and an outlet; the two side surfaces of the flow guide component correspond to the first inlet and the second inlet respectively, and the two side surfaces are set as arc surfaces.

4. The double-liquid grouting foundation reinforcement device according to claim 3, characterized in that: The first end of the non-return component is rotatably connected to the side of the guide component, and the second end is a movable end that can swing up and down, blocking the flow channel when swinging upward and opening the flow channel when swinging downward.

5. The double-liquid grouting foundation reinforcement device according to claim 4, characterized in that: The outlet end of the three-way structure is connected to the tapered cylinder, and the tip of the tapered cylinder forms the output end.

6. The double-liquid grouting foundation reinforcement device according to claim 5, characterized in that: Spirally arranged protrusions are provided inside the outlet direction of the three-way structure or inside the conical cylinder.

7. The double-liquid grouting foundation reinforcement device according to claim 1, characterized in that: The pumping mechanism includes: a cylinder body, a piston mechanism, and a crank arm mechanism. The cylinder body has a pumping inlet and a pumping outlet, and both are respectively provided with a one-way valve. The piston mechanism is slidably arranged inside the cylinder body, and changes the internal volume capacity of the cylinder body when sliding. The crank arm mechanism is connected to the piston mechanism, and is used to transmit power to the piston mechanism to drive the piston to reciprocate.

8. The double-liquid grouting foundation reinforcement device according to claim 1, characterized in that: The first stirring barrel and the second stirring barrel are both provided with filter screens to separate the barrels into an upper stirring space and a lower filtering space. The extraction space is connected to the filtering space. A stirring mechanism is provided in the stirring space to stir the slurry.

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