Earthen archaeological site sheet-shaped stripping and back-pressing device

Abstract

The utility model provides an earthen archaeological site sheet-shaped stripping back-pressing device which is used for solving the technical problem that after sheet-shaped stripping grouting reinforcement, a sheet-shaped stripping layer cannot be compacted in a standard mode. The device comprises a shell, a cam driving mechanism is arranged in the shell, the cam driving mechanism is matched with one end of a guide rod, and the guide rod is movably connected with the shell; a return mechanism is arranged on the guide rod, and the return mechanism is fixedly mounted on the shell; and a back pressure mechanism is arranged at the other end of the guide rod. The automatic structure of the cam driving mechanism is adopted, the back pressure mechanism is controlled to reciprocate in the direction of the guide rod under the conditions of high frequency and low energy, the reinforcing effect and the reinforcing mechanism accord with the earthen ruin protection reinforcing concept, and application and popularization are facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of earthen ruins protection, in particular to an earthen ruins sheet peeling back pressure device. Background Art

[0002] Earthen sites have rich scientific, cultural, and historical research values. In the arid and semi-arid areas of northwest my country, there are a large number of earthen sites. As one of the important types of Chinese cultural heritage, these earthen sites have extremely high historical, scientific, artistic, and social values. However, due to the limitations of the construction technology at that time and the long-term influence of the natural environment and human destruction, earthen sites always have various diseases, and a series of diseases that endanger mechanical stability such as flaking, cracks, collapse, and erosion have occurred on the body of the earthen sites. Among them, flaking is the most representative. Flaking is a type of earthen site disease caused by the coupling of water, heat, salt, and wind, which seriously affects the safe existence of earthen sites. With the research on flaking and the progress of reinforcement methods, the development of flaking has been controlled. After years of research, three different grouting technologies have been formed: spraying, dripping, and electro-osmosis. However, the treatment measures for flaking after reinforcement are relatively lacking. Flaky peeling has a special binary structure, and back pressure treatment is required after grouting reinforcement. The problem of irregular back pressure process has a great influence on the reinforcement effect. Therefore, it is urgent to carry out relevant experimental research on the back pressure device for flaky peeling.

[0003] The invention patent with application number 201910873418.6 discloses a device for flake stripping and reinforcement of earthen ruins, including a liquid supply unit and a power supply unit, and also a pressure supply unit; the pressure supply unit includes a pressure source, a guide rod and a pressure plate, one end of the guide rod is inserted and fixed inside the earthen ruins to be reinforced, the pressure plate is fixedly connected to the pressure source and sleeved on the free end of the guide rod, and the pressure plate reciprocates along the length direction of the guide rod under the drive of the pressure source. After completing the infiltration treatment of the reinforcing liquid, the above invention uses the pressure supply unit to positively pressurize and reinforce the soil in the infiltration area that is in the optimal moisture content state, thereby achieving a compacting effect on the soil in the infiltration area, and further improving the effect of the reinforcement treatment of the earthen ruins. However, the installation method of the pressure unit of the above invention is relatively simple, and it is impossible to ensure the firm connection between the back pressure device and the wall, resulting in low reinforcement efficiency and poor safety during the reinforcement process; the pressure unit cannot accurately control the applied pressure, and the device for applying pressure is unreliable; in addition, the installation and use steps of the existing invention are relatively cumbersome, and the adaptability to the complex terrain environment of the earthen ruins is poor. In summary, the existing invention cannot perform standardized reinforcement construction after the sheet stripping grouting reinforcement. Utility Model Content

[0004] In view of the technical problem that the flaky peeling layer cannot be compacted properly after flaky peeling grouting reinforcement, the utility model proposes a flaky peeling back-pressure device for earthen ruins, which uses a cam mechanism to drive the guide rod to move back and forth horizontally, thereby driving the back-pressure mechanism to move back and forth for compaction. The device is easy to use and has a simple structure. After the back-pressure is completed, the compaction effect meets the reinforcement requirements, the reinforcement efficiency is high, and the disturbance to the earthen ruins body is small.

[0005] In order to achieve the above-mentioned purpose, the technical solution of the utility model is implemented as follows: a flaky peeling back pressure device for earthen ruins comprises a shell, a cam driving mechanism is arranged in the shell, the cam driving mechanism cooperates with one end of a guide rod, and the guide rod is movably connected to the shell; a return mechanism is arranged on the guide rod, and the return mechanism is fixedly mounted on the shell; a back pressure mechanism is arranged at the other end of the guide rod.

[0006] Preferably, the back pressure mechanism includes a first back pressure plate and a second back pressure plate, the second back pressure plate is fixed to the other end of the guide rod, and the first back pressure plate and the second back pressure plate correspond to each other; a structural nail is fixed at the center of the first back pressure plate, and the structural nail is fixed on the wall of the earthen site.

[0007] Preferably, the diameter of the structural nail is the same as the diameter of the grouting pipe in the electroosmosis process, and the length of the structural nail is consistent with the length of the grouting pipe.

[0008] Preferably, a layer of silicone material is coated on the surface of the first back pressure plate close to the wall of the earthen ruins.

[0009] Preferably, the shape of the second back pressure plate is the same as that of the front back pressure plate, and the size of the first back pressure plate is larger than that of the second back pressure plate; a film pressure sensor is provided on the second back pressure plate, and the film pressure sensor is arranged on a side close to the first back pressure plate.

[0010] Preferably, the cam driving mechanism comprises a cam, the cam is connected to an output shaft of a motor, and the motor is fixed on the housing.

[0011] Preferably, the cam is an elliptical cam, the housing is a hollow cube, and the internal structure of the housing matches the movement of the elliptical cam.

[0012] Preferably, the end of the guide rod that contacts the elliptical cam is hemispherical.

[0013] Preferably, the return mechanism includes a return spring and a box body, the box body is fixed on one side of the shell close to the guide rod, the return spring is arranged in the box body, and one end of the return spring is fixed on the box body; the return spring is sleeved on the guide rod, and a limit plate is provided on the guide rod, and the limit plate cooperates with the other end of the return spring.

[0014] Preferably, an extension rod is fixed to a side of the shell away from the guide rod, a handle is fixed to the extension rod, a switch is provided on the handle, and the switch is connected to the motor.

[0015] Compared with the prior art, the utility model has the following beneficial effects: the back pressure plate is divided into a first back pressure plate and a second back pressure plate, the first back pressure plate is fixed on the wall of the earthen site, the second back pressure plate is connected to the cam drive mechanism through a guide rod, when the cam rotates under the drive of the motor, the second back pressure plate moves forward, hits the first back pressure plate, and completes the back pressure; when the elliptical cam returns to its original position, the second back pressure plate moves backward under the action of the return spring. Among them, the use of the elliptical cam in the cam drive mechanism in the utility model can ensure a smooth and stable compaction process, provide precise motion control and reduce vibration, thereby effectively improving the compaction effect and ensuring the uniformity of soil compaction; in addition, the first back pressure plate is reliably connected to the wall, and the second back pressure plate is connected to the cam drive mechanism through the guide rod. The design of the double back pressure plate realizes effective motion transmission, making the back pressure process more controllable, and at the same time, the compaction effect in the back pressure process is uniform and consistent, avoiding the problem of uneven soil compaction; at the same time, the second back pressure plate is covered with a pressure sensor, and the data measured by the sensor is used to realize the precise control of the back pressure process. The utility model adopts an automated structure to control the back pressure mechanism to make reciprocating motion in the direction of the guide rod under high frequency and low energy conditions. The reinforcement effect and reinforcement mechanism conform to the concept of earthen site protection and reinforcement, and are conducive to popularization and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a structural schematic diagram of the utility model.

[0018] Figure 2 It is a cross-sectional view of the utility model.

[0019] Figure 3 It is a structural schematic diagram of the first back pressure plate of the utility model.

[0020] Figure 4 It is an elevation view of the shell of the utility model.

[0021] Figure 5 for Figure 4 AA view in .

[0022] In the figure, 1 is the first back pressure plate; 2 is the second back pressure plate; 3 is the structural nail; 4 is the return spring; 5 is the limit plate; 6 is the guide rod; 7 is the cam; 8 is the motor; 9 is the housing; 10 is the extension rod; 11 is the handle; 12 is the silicone layer; 13 is the film pressure sensor; and 14 is the switch. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] like Figure 1 and Figure 2 As shown, a device for peeling back pressure of earthwork ruins comprises a housing 9, wherein a cam driving mechanism is arranged in the housing 9, and the cam driving mechanism cooperates with one end of a guide rod 6, and the cam driving mechanism is used to drive the guide rod 6 to reciprocate in the horizontal direction, and the guide rod 6 is movably connected to the housing 9, as shown in FIG. Figure 4 As shown, there is a passage for the guide rod 6 to pass through the front end of the housing 9, and the housing 9 does not affect the horizontal movement of the guide rod 6. The guide rod 6 is provided with a return mechanism, which is fixedly mounted on the housing 9 and is used to push the guide rod back to the vicinity of the cam drive mechanism. The other end of the guide rod 6 is provided with a back pressure mechanism, and the guide rod 6 drives the back pressure mechanism to reciprocate horizontally, thereby achieving the purpose of evenly applying pressure to the wall of the earthen site.

[0025] Furthermore, the back pressure mechanism includes a first back pressure plate 1 and a second back pressure plate 2, the second back pressure plate 2 is fixed to the other end of the guide rod 6, the first back pressure plate 1 corresponds to the second back pressure plate 2, and under the action of the second back pressure plate 2, the first back pressure plate 1 moves toward the wall of the earthen ruins. The shape of the second back pressure plate 2 is the same as that of the front back pressure plate 1, the size of the first back pressure plate 1 is larger than that of the second back pressure plate 2, and the setting of the first back pressure plate can reduce the impact force and vibration, reduce disturbance, and avoid affecting the wall of the earthen ruins outside the back pressure area.

[0026] like Figure 3As shown, a structural nail 3 is fixed at the center of the first back pressure plate 1, and the structural nail 3 is fixed on the wall of the earthen site. The diameter of the structural nail 3 is slightly larger than the diameter of the grouting pipe in the electroosmosis process, and the length of the structural nail 3 is consistent with the length of the grouting pipe. During installation, the structural nail and the hole wall of the grouting hole are squeezed against each other, and the back pressure device is tightly connected to the wall of the earthen site without causing additional disturbance. A layer of silica gel material 12 is coated on the surface of the first back pressure plate 1 close to the wall of the earthen site, so as to make good contact with the wall of the earthen site and cause less disturbance to the wall of the earthen site. The first back pressure plate 1 is fixed on the wall of the earthen site by the structural nail 3. Under the drive of the cam driving mechanism, the second back pressure plate 2 applies force to the first back pressure plate 1 along the direction of the guide rod 6, driving the structural nail 3 to move into the wall of the earthen site. Under the drive of the return mechanism, the second back pressure plate 2 moves along the direction of the guide rod 6 toward the direction of the cam driving mechanism, thereby realizing continuous hitting of the first back pressure plate 1 to complete the back pressure.

[0027] Furthermore, a thin film pressure sensor 13 is provided on the second back pressure plate 2, and the thin film pressure sensor 13 is arranged on a side close to the first back pressure plate 1. The function of the thin film pressure sensor 13 is to measure the force applied by the second back pressure plate 2 to the first back pressure plate 1, and the measured data is sent to a device capable of receiving data through a built-in wireless communication module, so that the back pressure process can be accurately controlled through the change of the force.

[0028] Furthermore, if Figure 4 As shown, the cam driving mechanism includes a cam 7, which is connected to the output shaft of a motor 8, and the motor 8 is fixed on a housing 9. When the cam 7 moves in a curve under the drive of the motor 8, it will change into a linear motion along the direction of the guide rod 6. When the cam 7 moves to a horizontal position, the guide rod 6 returns to its original position under the action of the return spring 4 and the limit plate 5 of the return mechanism.

[0029] The housing 9 is a hollow cube, and the internal structure of the housing 9 matches the movement of the elliptical cam. Figure 5 As shown, the internal height of the housing is slightly larger than the diameter of the elliptical cam, and the shape and size of the internal space of the hollow cube are limited to the elliptical cam to make a curved motion driven by the internal motor 8. Driven by the motor 8, the elliptical cam can only make a curved motion inside the housing 9, and the end of the guide rod 6 that contacts the elliptical cam is hemispherical to reduce resistance.

[0030] like Figure 2As shown, the return mechanism includes a return spring 4 and a box body, the box body is fixed on the side of the housing 9 close to the guide rod 6, the return spring 4 is arranged in the box body, and one end of the return spring 4 is fixed on the box body; the return spring 4 is sleeved on the guide rod 6, and a limit plate 5 is provided on the guide rod 6, and the limit plate 5 cooperates with the other end of the return spring 4. When the elliptical cam rotates, the guide rod 4 is squeezed to move horizontally, and the limit plate 5 contacts the return spring 4 to compress the return spring 4, and the other end of the return spring 4 is squeezed in the box body, so when the cam 7 moves to the horizontal position, the return spring 4 restores its deformation, driving the guide rod 6 to move closer to the center of the cam as the cam 7 rotates, so as to achieve the effect of restoring the second return pressure plate 2.

[0031] Furthermore, an extension rod 10 is fixed to the side of the housing 9 away from the guide rod 6, and a handle 11 is fixed to the extension rod 10. The extension rod 10 and the handle 11 form a T-shaped structure, which is convenient for people to hold and can support the housing 9. A switch 14 is provided on the handle 11, and the switch 14 is arranged on one side of the extension rod 10 to facilitate the control of the switch. The switch 14 is connected to the motor 8. The switch 14 controls the start and stop of the motor 8, thereby controlling whether the second back pressure plate 2 applies a force to the first back pressure plate 1.

[0032] The method of using the utility model is as follows: A. Install the first back pressure plate 1 on the wall of the earthen site after electroosmosis, and nail the structural nail 3 into the anode hole position to ensure that the back pressure device can be firmly installed on the wall of the earthen site;

[0033] B. Turn on the switch 14 on the handle 11, hold the handle 11, and the motor 8 in the housing 9 starts to work. When the long axis of the elliptical cam changes from the vertical direction to the horizontal direction, the return spring 4 is compressed, and the guide rod 6 moves horizontally toward the wall of the earthen site, driving the second return pressure plate 13 to apply pressure to the first return pressure plate 1. The first return pressure plate slows down the direct impact force transmitted by the second return pressure plate, and evenly applies the impact force to the flaky peeling of the earthen site. At this time, it is in a pressurized state; when the long axis of the elliptical cam changes from the horizontal direction to the vertical direction, the return spring 4 rebounds, and the guide rod 6 moves horizontally away from the wall of the earthen site. Under the action of the motor 8, the guide rod 6 continuously reciprocates, performs high-frequency, low-vibration return pressure on the flaky peeling area of ​​the earthen site, and performs standardized and effective return pressure reinforcement on the wall of the earthen site after electroosmosis grouting.

[0034] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A device for peeling off and back-pressing earth ruins flakes, comprising a housing (9), characterized in that: A cam drive mechanism is provided in the housing (9), the cam drive mechanism cooperates with one end of the guide rod (6), and the guide rod (6) is movably connected to the housing (9); a return mechanism is provided on the guide rod (6), and the return mechanism is fixedly mounted on the housing (9); a return pressure mechanism is provided at the other end of the guide rod (6); The back pressure mechanism comprises a first back pressure plate (1) and a second back pressure plate (2), the second back pressure plate (2) being fixed to the other end of the guide rod (6), the first back pressure plate (1) and the second back pressure plate (2) corresponding to each other; a structural nail (3) is fixed at the center of the first back pressure plate (1), and the structural nail (3) is fixed to the wall surface of the earthen site.

2. The earthen ruins sheet peeling back pressure device according to claim 1, characterized in that: The diameter of the structural nail (3) is the same as the diameter of the grouting pipe during the electroosmosis process, and the length of the structural nail (3) is consistent with the length of the grouting pipe.

3. The earthen ruins sheet peeling back pressure device according to claim 1 or 2, characterized in that: A layer of silica gel material (12) is coated on the surface of the first back pressure plate (1) close to the wall of the earthen ruins.

4. The earthen ruins sheet peeling back pressure device according to claim 3, characterized in that: The shape of the second back pressure plate (2) is the same as that of the first back pressure plate (1), and the size of the first back pressure plate (1) is larger than that of the second back pressure plate (2); a thin film pressure sensor (13) is provided on the second back pressure plate (2), and the thin film pressure sensor (13) is arranged on a side close to the first back pressure plate (1).

5. The earthen ruins sheet peeling back pressure device according to claim 4, characterized in that: The cam drive mechanism comprises a cam (7), the cam (7) is connected to an output shaft of a motor (8), and the motor (8) is fixed on a housing (9).

6. The earthen ruins sheet peeling back pressure device according to claim 5, characterized in that: The cam (7) is an elliptical cam, the housing (9) is a hollow cube, and the internal structure of the housing (9) matches the movement of the elliptical cam.

7. The earthen ruins sheet peeling back pressure device according to claim 6, characterized in that: The end of the guide rod (6) that contacts the elliptical cam is hemispherical.

8. The earthen ruins sheet peeling back pressure device according to any one of claims 4 to 7, characterized in that: The return mechanism comprises a return spring (4) and a box body, wherein the box body is fixed to a side of the housing (9) close to the guide rod (6), the return spring (4) is arranged in the box body, and one end of the return spring (4) is fixed to the box body; the return spring (4) is sleeved on the guide rod (6), and a limit plate (5) is provided on the guide rod (6), and the limit plate (5) cooperates with the other end of the return spring (4).

9. The earthen ruins sheet peeling back pressure device according to claim 8, characterized in that: An extension rod (10) is fixed to a side of the housing (9) away from the guide rod (6), a handle (11) is fixed to the extension rod (10), a switch (14) is provided on the handle (11), and the switch (14) is connected to the motor (8).

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