Grouting device for tunnel construction

Abstract

The utility model provides a tunnel construction grouting device which comprises a movable base, a supporting frame is installed above the movable base, one side of the supporting frame is fixedly connected with a buffering assembly and a vacuum pump, the other end of the buffering assembly is fixedly connected with a temporary storage box, the two sides of the temporary storage box are fixedly connected with vibration motors, and the top of the temporary storage box is fixedly connected with an air exhaust connector. The buffer assembly comprises sliding rods and springs, the multiple sliding rods are fixedly connected to the two sides of the temporary storage box, the two ends of the springs are fixedly connected to the supporting frame and one ends of the sliding rods correspondingly, and the multiple sliding rods are slidably connected to one side of the supporting frame; the mortar in the temporary storage box is subjected to high-frequency vibration through the vibration motor, and large bubbles are promoted to be broken; and meanwhile, the vacuum pump vacuumizes the top of the temporary storage box through the air exhaust connector, escape of small bubbles is accelerated, the compactness of the mortar is remarkably improved through the dual effects of vibration and vacuum, and leakage or strength defects caused by the bubbles after grouting are reduced.

Description

Technical Field

[0001] This utility model relates to the field of grouting device technology, and in particular to a grouting device for tunnel construction. Background Technology

[0002] Tunnel grouting devices are key equipment used in tunnel engineering to reinforce surrounding rock and prevent water seepage. Their core function is to inject special grout (such as cement-based grout, chemical grout, etc.) into the strata to fill rock and soil fissures or weak strata, forming a reinforced layer or water-stop curtain, thereby improving the stability of the tunnel structure. During grouting, a large number of air bubbles will be present inside the mortar due to mixing. If these air bubbles are not removed, they will affect the effect of the grouting product.

[0003] A search revealed a Chinese patent publication number CN113561321B, which discloses a grouting device for shield tunnel construction, comprising: a mixing component movably mounted on a box body, used to fully mix concrete raw materials in the box body; and an exhaust component movably mounted on the side wall of the box body.

[0004] To address the problem that directly using vibrating components to remove air bubbles inside the aforementioned technologies cannot completely eliminate small, fine air bubbles, a tunnel construction grouting device is proposed. Utility Model Content

[0005] In view of this, the present invention aims to provide a tunnel construction grouting device to solve or alleviate the technical problems existing in the prior art, and at least provide a beneficial alternative.

[0006] The technical solution of this utility model embodiment is implemented as follows: it includes a movable base with a support frame installed on top, a buffer component and a vacuum pump are fixedly connected to one side of the support frame, a temporary storage box is fixedly connected to the other end of the buffer component, vibration motors are fixedly connected to both sides of the temporary storage box, an air extraction port is fixedly connected to the top of the temporary storage box, and the other end of the air extraction port is fixedly connected to the vacuum pump through a pipe.

[0007] In some embodiments, the buffer assembly includes slide rods and springs, with multiple slide rods fixedly connected to both sides of the temporary storage box, and both ends of the springs fixedly connected to a support frame and one end of the slide rods, respectively. The multiple slide rods are slidably connected to one side of the support frame.

[0008] In some embodiments, a mixing tank is fixedly connected to one end of the movable base and support frame, a mixing component is fixedly connected to one end of the mixing tank, and a material injection component is fixedly connected to one end of the mixing tank and the temporary storage box.

[0009] In some embodiments, an electric valve is fixedly connected to the bottom of the temporary storage box, and a grouting pipe is fixedly connected below the electric valve.

[0010] In some embodiments, a top partition 1 and a top partition 2 are fixedly connected to the inner side of the temporary storage box, and one end of the top partition 1 is fixedly connected to the injection component.

[0011] In some embodiments, a trigger tube is fixedly connected to one end of the top partition and one end of the temporary storage box, and a trigger rod is slidably connected inside the trigger tube.

[0012] In some embodiments, a float is fixedly connected below the trigger rod.

[0013] In some embodiments, a reset spring is fixedly connected to the top of the trigger rod and the trigger tube, and a micro switch is fixedly connected to the top of the trigger tube.

[0014] The present invention has the following advantages due to the adoption of the above technical solution:

[0015] 1. A tunnel construction grouting device, wherein a vibrating motor is used to vibrate the mortar in the temporary storage box at high frequency to cause large air bubbles to burst; at the same time, a vacuum pump is used to evacuate the top of the temporary storage box through the air extraction interface to accelerate the escape of small air bubbles. The dual effect of vibration and vacuum significantly improves the density of mortar and reduces leakage or strength defects caused by air bubbles after grouting.

[0016] 2. A tunnel construction grouting device that uses buoyancy to push a trigger rod to trigger a micro switch, automatically shutting off the grouting component. This avoids the lag of manual monitoring, prevents grout overflow from causing equipment contamination or material waste, and improves the safety of the grouting process.

[0017] The above overview is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the present invention will become readily apparent from the accompanying drawings and the following detailed description. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is the main view of the present invention.

[0020] Figure 2 This is a structural diagram of the internal structure of the temporary storage box of this utility model;

[0021] Figure 3 This is a partial structural diagram of the inner side of the temporary storage box of this utility model;

[0022] Figure 4 This is a diagram showing the installation structure of the trigger rod of this utility model.

[0023] Figure label:

[0024] 1. Movable base; 2. Mixing tank; 3. Mixing component; 4. Support frame; 5. Temporary storage box; 6. Electric valve; 7. Grouting pipe; 8. Material injection component; 9. Vacuum pump; 10. Slide rod; 11. Spring; 12. Top partition one; 13. Trigger tube; 14. Top partition two; 15. Air extraction port; 16. Float; 17. Trigger rod; 18. Return spring; 19. Micro switch; 20. Vibration motor. Detailed Implementation

[0025] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of this invention. Therefore, the drawings and description are considered exemplary in nature and not restrictive.

[0026] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0027] Example 1:

[0028] like Figure 1-4 As shown, a tunnel construction grouting device includes a movable base 1 with a support frame 4 mounted on top. The movable base 1 has a driving component below it, which facilitates the movement of the device. A buffer assembly and a vacuum pump 9 are fixedly connected to one side of the support frame 4. A temporary storage box 5 is fixedly connected to the other end of the buffer assembly. Vibration motors 20 are fixedly connected to both sides of the temporary storage box 5. An air extraction port 15 is fixedly connected to the top of the temporary storage box 5. The other end of the air extraction port 15 is fixedly connected to the vacuum pump 9 through a pipe. The vacuum pump 9 is installed on one side of the support frame 4 to prevent it from being affected by vibration.

[0029] When in use, the mortar is temporarily stored in the temporary storage box 5. During temporary storage, the vibration motor 20 and the vacuum pump 9 are started at the same time. The linear vibration motors 20 on both sides can vibrate the mortar inside, causing the air bubbles in the mortar to burst. At the same time, the vacuum pump 9 uses the air extraction port 15 to draw a vacuum from the top of the temporary storage box 5. This can accelerate the bursting of small air bubbles while vibrating, and completely remove the air bubbles in the mortar.

[0030] In this embodiment, the buffer assembly includes a slide bar 10 and a spring 11. Multiple slide bars 10 are fixedly connected to both sides of the temporary storage box 5. The two ends of the spring 11 are respectively fixedly connected to the support frame 4 and one end of the slide bar 10. Multiple slide bars 10 are slidably connected to one side of the support frame 4. The spring 11, together with the slide bar 10, can limit the vibration trajectory of the temporary storage box 5 and prevent the temporary storage box 5 from falling after storing mortar.

[0031] In this embodiment, a mixing tank 2 is fixedly connected to one end of the mobile base 1 and the support frame 4, a mixing component 3 is fixedly connected to one end of the mixing tank 2, and a material injection component 8 is fixedly connected to one end of the mixing tank 2 and the temporary storage box 5. The mixing tank 2 can mix the mortar through the mixing component 3, and the material injection component 8 has a mortar pump at one end, which can be used to pump the mortar into the temporary storage box 5 for temporary storage and air removal.

[0032] An electric valve 6 is fixedly connected to the bottom of the temporary storage box 5, and a grouting pipe 7 is fixedly connected below the electric valve 6. The electric valve 6 is closed during defoaming, and the grouting pipe 7 can be opened for grouting after defoaming is completed.

[0033] In this embodiment, a top partition 12 and a top partition 2 14 are fixedly connected to the inner side of the temporary storage box 5. One end of the top partition 12 is fixedly connected to the injection component 8. The top partition 12 and the top partition 2 14 form a tortuous air channel, which can prevent similar mortar from splashing and adhering to the air extraction port 15. At the same time, a filter screen is installed at the port of the air extraction port 15 to further prevent mortar from entering.

[0034] In this embodiment: when in use, the mortar is temporarily stored in the temporary storage box 5. During temporary storage, the vibration motor 20 and the vacuum pump 9 are started at the same time. The linear vibration motors 20 on both sides can vibrate the mortar inside, causing the air bubbles in the mortar to burst. At the same time, the vacuum pump 9 uses the air extraction port 15 to draw a vacuum from the top of the temporary storage box 5. This can accelerate the bursting of small air bubbles while vibrating, and completely remove the air bubbles in the mortar.

[0035] Spring 11, in conjunction with slide bar 10, can limit the vibration trajectory of temporary storage box 5 and prevent it from falling after storing mortar. Mixing tank 2 can mix mortar through mixing component 3. One end of injection component 8 has mortar pump, which can be used to pump mortar into temporary storage box 5 for temporary storage and degassing. When degassing, electric valve 6 is closed. After degassing is completed, injection pipe 7 can be opened for injection.

[0036] The top partition 12 and the top partition 14 form a tortuous air passage to prevent similar mortar from splashing and adhering to the air extraction port 15. At the same time, a filter screen is installed at the port of the air extraction port 15 to further prevent mortar from entering.

[0037] Example 2:

[0038] A tunnel construction grouting device, this embodiment is based on embodiment 1 with the following improvements, such as... Figure 1-4 As shown,

[0039] In this embodiment, a trigger tube 13 is fixedly connected to one end of the top partition 12 and the temporary storage box 5, and a trigger rod 17 is slidably connected inside the trigger tube 13; a float 16 is fixedly connected below the trigger rod 17.

[0040] When the mortar is injected into the temporary storage box 5, it will squeeze the float 16 to float upwards;

[0041] A reset spring 18 is fixedly connected to the top of the trigger rod 17 and the trigger tube 13, and a micro switch 19 is fixedly connected to the top of the trigger tube 13.

[0042] The reset spring 18 is a low-elasticity model, which can assist the trigger rod 17 in resetting. When the trigger rod 17 floats to the top due to the float 16, it will squeeze the micro switch 19 to send a signal to stop the injection component 8 from working and prevent the mortar from overflowing.

[0043] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in this utility model, and these should all be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A tunnel construction grouting device, comprising a movable base (1) on which a support frame (4) is mounted, characterized in that: The support frame (4) is fixedly connected to a buffer assembly and a vacuum pump (9) on one side, and a temporary storage box (5) is fixedly connected to the other end of the buffer assembly. Vibration motors (20) are fixedly connected to both sides of the temporary storage box (5). An air extraction port (15) is fixedly connected to the top of the temporary storage box (5), and the other end of the air extraction port (15) is fixedly connected to the vacuum pump (9) through a pipe.

2. The tunnel construction grouting device according to claim 1, characterized in that: The buffer assembly includes a slide rod (10) and a spring (11). Multiple slide rods (10) are fixedly connected to both sides of the temporary storage box (5). The two ends of the spring (11) are fixedly connected to the support frame (4) and one end of the slide rod (10), respectively. Multiple slide rods (10) are slidably connected to one side of the support frame (4).

3. A tunnel construction grouting device according to claim 1, characterized in that: The mobile base (1) and support frame (4) are fixedly connected to a mixing tank (2) at one end, a mixing component (3) is fixedly connected to one end of the mixing tank (2), and a material injection component (8) is fixedly connected to one end of the mixing tank (2) and temporary storage box (5).

4. A tunnel construction grouting device according to claim 3, characterized in that: An electric valve (6) is fixedly connected to the bottom of the temporary storage box (5), and a grouting pipe (7) is fixedly connected below the electric valve (6).

5. A tunnel construction grouting device according to claim 4, characterized in that: The temporary storage box (5) is fixedly connected to a top partition 1 (12) and a top partition 2 (14) on its inner side, and one end of the top partition 1 (12) is fixedly connected to the injection component (8).

6. A tunnel construction grouting device according to claim 5, characterized in that: The top partition (12) and the temporary storage box (5) are fixedly connected to one end of a trigger tube (13), and a trigger rod (17) is slidably connected inside the trigger tube (13).

7. A tunnel construction grouting device according to claim 6, characterized in that: A float (16) is fixedly connected below the trigger rod (17).

8. A tunnel construction grouting device according to claim 7, characterized in that: A reset spring (18) is fixedly connected to the top of the trigger rod (17) and the trigger tube (13), and a micro switch (19) is fixedly connected to the top of the trigger tube (13).

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