Hydraulic equipment for backfilling and use method thereof

Abstract

The present invention relates to the field of platform backfilling, and discloses a hydraulic device for platform backfilling, including a hydraulic rammer, wherein the hydraulic rammer is provided with a pressure device for compacting the ground, wherein the pressure device includes a hydraulic cylinder and a pressure piece, and also includes a water pump, a hose and a stainless steel pipe, wherein an outlet at one end of the stainless steel pipe is arranged toward the forward direction of the hydraulic rammer, and the other end of the stainless steel pipe is connected to the hose and connected to the water pump through the hose, and the outer side of the stainless steel pipe is connected to the pressure piece, and the pressure piece is provided with an induction switch, wherein the induction switch is connected with the water pump signal, and the pressure piece will trigger the induction switch when it falls to a predetermined position, thereby starting the water pump, and the water pressure of the water pump will gradually increase on the basis of the stainless steel pipe accompanying the rise of the pressure piece, and the water sprayed from the stainless steel pipe makes the ground slightly wet, which can effectively suppress dust without affecting the compaction effect of the soil.

Description

Technical Field

[0001] The invention relates to the field of platform backfilling, and in particular to a hydraulic device for platform backfilling and a use method thereof. Background Art

[0002] Fill roadbeds generally have quality problems such as poor stability, roadbed settlement, and slope collapse. During filling construction, strong compaction must be used in strict accordance with design requirements to reduce the post-construction settlement of high fill roadbeds. The traditional strong compaction method in engineering is a foundation treatment method in which a large-tonnage heavy hammer falls freely from a high place to strongly compact the soil. The mechanism of action is to use a large impact energy to cause a large shock wave and stress in the soil, thereby compressing the gaps in the soil, partially liquefying the soil, and consolidating it quickly. In the backfill construction of the bridge and culvert, due to the narrow working surface, it is difficult for large compaction machines to achieve all-round compaction. The use of hydraulic compaction machines can achieve compaction without dead angles, reducing or avoiding inter-layer slippage and separation that may be caused by layered compaction.

[0003] Existing hydraulic equipment, such as the authorization announcement number CN219240509U, discloses a device for hydraulic tamping of platform backfill. This solution uses a hydraulic cylinder to drive the tamping hammer up and down, and uses a certain force to press the tamping block and the tamping plate, thereby tamping the ground to achieve the effect of tamping the ground;

[0004] However, this solution still has the following shortcomings: using hydraulic equipment to compact the foundation usually affects the soil layer 1 to 5 meters underground. As long as the water content in the soil layer is moderate and relatively stable, compaction operations can be carried out. Therefore, compaction operations are usually carried out on sunny days. However, compaction operations will disturb the surface soil, causing soil particles to be lifted up, thereby generating dust. Dust entering the moving parts of the hydraulic equipment will increase friction and wear, shorten the service life of the equipment, and may also cause short circuits or poor contact of electronic components, and even threaten the personal safety of on-site construction workers. Although the ground can be manually irrigated with an appropriate amount of water to suppress dust from being raised, in order to avoid affecting the compaction operation, the amount of water poured is inevitably limited, and the ground far away from the hydraulic equipment will quickly evaporate. Therefore, it can only be manually irrigated over short distances. Frequent watering will increase labor costs and be more troublesome. Summary of the invention

[0005] The purpose of the present invention is to provide a hydraulic device for backfilling and a method for using the same to solve the above problems. The specific technical solution is as follows:

[0006] A hydraulic device for backfilling soil on a platform comprises a hydraulic rammer, the hydraulic rammer is provided with a pressure device for compacting the ground, the pressure device comprises a hydraulic cylinder and a pressure piece, the hydraulic cylinder drives the pressure piece to reciprocate in a vertical direction, and also comprises a water pump, a hose and a stainless steel pipe, one end outlet of the stainless steel pipe is arranged toward the forward direction of the hydraulic rammer, the other end of the stainless steel pipe is connected to the hose and connected to the water pump through the hose, the outer side of the stainless steel pipe is connected to the pressure piece, the bottom of the stainless steel pipe is arranged higher than the bottom surface of the pressure piece, the pressure piece is provided with an induction switch, the induction switch is connected with the water pump signal, the pressure piece moves downward in the vertical direction until the induction switch is triggered and changes to upward movement, the water pump outputs water to the hose in response to the triggering of the induction switch, and the water pressure of the water output by the water pump gradually increases with the rise of the pressure piece.

[0007] Preferably, the stainless steel tube is L-shaped, and a reinforcing rod is connected between the inner sides of both ends of the stainless steel tube.

[0008] Preferably, an outlet at one end of the stainless steel tube extends radially outward and forms a bell-mouth shape.

[0009] Preferably, the inductive switch includes a distance sensor or a pressure sensor.

[0010] Preferably, the hose is sleeved on the stainless steel tube, and sealant is filled between the outer side of the stainless steel tube and the inner wall of the hose.

[0011] Preferably, it further comprises a first clamp, which is sleeved on the hose and located at the overlapping portion of the hose and the stainless steel pipe.

[0012] Preferably, it also includes a second clamp and a third clamp, the second clamp is sleeved on the hose and located at the overlapping part of the hose and the stainless steel pipe, the third clamp is sleeved on the stainless steel pipe, the first clamp is arranged between the second clamp and the third clamp, and two symmetrically arranged steel belts are connected between the outer side of the second clamp and the outer side of the third clamp, and the steel belts are tightened to the outer side of the first clamp.

[0013] Preferably, the hydraulic tamping vehicle is provided with a displacement sensor.

[0014] A method for using a hydraulic device, the hydraulic device for backfilling the platform, comprising the following steps:

[0015] Drive the hydraulic tamping vehicle to the fill roadbed construction site;

[0016] Start the hydraulic cylinder to make the pressure piece move downward and compact the ground forcefully. When the pressure piece contacts the ground, the induction switch is triggered.

[0017] After the induction switch is triggered, the hydraulic cylinder drives the pressure piece to move upward, and at the same time starts the water pump to output water to the hose. The water flows through the hose and the stainless steel pipe in turn, sprays outward and drips on the ground in the direction of the hydraulic tamping vehicle.

[0018] As the pressure piece drives the stainless steel pipe upward, the water pressure of the water pump gradually increases, so that the water sprayed out from the stainless steel pipe covers the ground in the direction of the hydraulic rammer from near to far.

[0019] Preferably, the travel distance L0 of the hydraulic tamping vehicle is detected by a displacement sensor, and the travel distance L0 does not exceed the farthest distance L1 covered by the water sprayed outward from the stainless steel pipe.

[0020] Preferably, after the hydraulic cylinder is started for the first time and the induction switch is triggered, the induction switch can be triggered again only after the hydraulic ramming vehicle travels a distance L2, and the travel distance L0 is equal to the travel distance L2.

[0021] The beneficial effects of the present invention are as follows: when the pressure member falls to the lowest position or the predetermined position, the induction switch will be triggered, thereby starting the water pump. On the basis that the water pressure of the water pump gradually increases, the water sprayed from the stainless steel pipe will gradually move away from the stainless steel pipe as the pressure member rises, so as to cover the ground, thereby spraying a small amount of water to make the ground slightly wet, which can effectively suppress dust without affecting the compaction effect of the soil.

[0022] By setting the sealant to provide a sealing effect and form a simple preliminary connection, the stainless steel pipe and the hose are locked by the first clamp, and the first clamp is used for secondary reinforcement; the second clamp can fix the stainless steel pipe and the hose and cooperate with the third clamp to limit the stainless steel pipe and the hose, thereby further enhancing the reinforcement effect.

[0023] Additional aspects and advantages of the present invention will be given in part in the description below, and in part will become apparent from the description below, or will be understood through the practice of the present invention. Of course, it is not necessary to achieve all of the advantages described above at the same time to implement any product or method of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present invention 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 present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0025] Figure 1 It is a structural schematic diagram of the present invention.

[0026] Figure 2 It is a schematic structural diagram of the first clamp of the present invention.

[0027] Figure 3 It is another structural schematic diagram of the first clamp of the present invention.

[0028] In the figure: 1. hydraulic tamping vehicle, 2. pressure device, 3. water pump, 4. hose, 5. stainless steel pipe, 51. strengthening rod, 6. induction switch, 7. first clamp, 8. second clamp, 9. third clamp, 10. steel belt, 21. hydraulic cylinder, 22. pressure member. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0031] Based on the existing technology, compacting the foundation in a relatively dry environment is prone to dust generation, and frequent manual watering will increase labor costs and be more troublesome. Please refer to Figure 1-3 The present invention provides an embodiment to solve the above-mentioned problem, specifically comprising a hydraulic rammer 1, the hydraulic rammer 1 is provided with a pressure device 2 for compacting the ground, the pressure device 2 comprises a hydraulic cylinder 21 and a pressure member 22, the hydraulic cylinder 21 drives the pressure member 22 to reciprocate in the vertical direction, and also comprises a water pump 3, a hose 4 and a stainless steel pipe 5, one end outlet of the stainless steel pipe 5 is arranged toward the forward direction of the hydraulic rammer 1, the other end of the stainless steel pipe 5 is connected to the hose 4 and connected to the water pump 3 through the hose 4, and the water pump 3 is connected to an external water source through a water pipe. The pressure device 2 of this embodiment is arranged in front of the hydraulic rammer 1, therefore, by arranging a water spraying or sprinkling mechanism on the pressure device 2, water is sprayed or sprinkled toward the forward direction of the hydraulic rammer 1, thereby solving the problem of soil particles being raised and dust being generated due to disturbance of the surface soil by the compaction operation;

[0032] The amount of water to be sprinkled should be adjusted according to the actual moisture content of the soil on site to ensure that dust can be suppressed without affecting the compaction effect. As for how to detect the moisture content in the soil, it is well known to those skilled in the art.

[0033] In order to further optimize the coverage of the watering, the pressure member 22 is provided with a sensing switch 6, which is connected to the signal of the water pump 3. The pressure member 22 moves downward in the vertical direction until the sensing switch 6 is triggered and changes to upward movement. The water pump 3 outputs water to the hose 4 in response to the triggering of the sensing switch 6. The water pressure of the water output by the water pump 3 gradually increases with the rise of the pressure member 22. Generally, the pressure member 22 usually includes a rammer, a rammer block and a rammer plate. The hydraulic cylinder 21 drives the rammer to rise and fall, so that the rammer applies pressure to the rammer block and the rammer plate with a certain force, thereby performing a tamping action on the ground to achieve the effect of tamping the ground.

[0034] In this embodiment, the outer side of the stainless steel pipe 5 is connected to the rammer. When the stainless steel falls to the lowest position together with the rammer, the bottom of the stainless steel pipe 5 is still higher than the rammer plate, ensuring that the stainless steel pipe 5 does not directly contact the ground. When the rammer falls to the lowest position, the induction switch 6 is triggered at the same time. At this time, the water pump 3 is started. On the basis that the water pressure of the water pump 3 gradually increases, the stainless steel pipe 5 rises along with the rammer. The water sprayed from the stainless steel pipe 5 gradually moves away from the stainless steel pipe 5 from close to the stainless steel pipe 5 to cover the ground.

[0035] Regarding the inductive switch 6, the inductive switch 6 can be a distance sensor or a pressure sensor. When the inductive switch 6 is a distance sensor, the inductive switch 6 can be arranged on the side of the rammer. When the rammer moves to a predetermined distance, the distance sensor sends a start signal to the water pump 3. When the inductive switch 6 is a pressure sensor, the inductive switch 6 is arranged on the bottom surface of the rammer. When the rammer applies pressure to the rammer block, the pressure sensor sends a start signal to the water pump 3.

[0036] It should be noted that, in this embodiment, there are certain restrictions on the number and placement of the stainless steel pipes 5 and the hoses 4. A plurality of stainless steel pipes 5 need to be arranged side by side and the total width of the plurality of stainless steel pipes 5 arranged side by side should not be greater than the width of the ramming plate. Preferably, the stainless steel pipe 5 is in an L shape, that is, one section of the stainless steel pipe 5 is arranged horizontally and toward the forward direction of the hydraulic ramming vehicle 1, while the other section of the stainless steel pipe 5 is arranged vertically. A reinforcing rod 51 is connected between the inner sides of both ends of the stainless steel pipe 5. Connecting the stainless steel pipe 5 to the pressure member 22 is not only convenient for lifting the stainless steel pipe 5 to cooperate with the water pump 3 for water sprinkling, but also for utilizing the vibration generated when the pressure member 22 impacts the ground. The vibration effect will also act on the stainless steel pipe 5. Under the impact of the vibrating stainless steel pipe 5 and the water flow in the stainless steel pipe 5, the outlet of the stainless steel pipe 5 is not easy to adhere to dust, thus preventing blockage. Adding the reinforcing rod 51 can strengthen the structure of the stainless steel pipe 5 and reduce the risk of deformation due to vibration. Of course, on the basis of the plurality of stainless steel pipes 5 arranged side by side, the plurality of stainless steel pipes 5 can also be connected to further enhance the structural strength.

[0037] In some embodiments, the outlet at one end of the stainless steel tube 5 extends radially outward and forms a trumpet shape. By designing the outlet of the stainless steel tube 5 to be trumpet-shaped, the inner side surface of the outlet of the stainless steel tube 5 will form an inclined surface, and dust will not easily remain on the inclined surface, making it less likely to be blocked. Secondly, even if the pressure piece 22 generates dust in the process of compacting the ground, the dust will float or diffuse outward from all sides of the pressure piece 22, and the outer side of the outlet of the stainless steel tube 5 can also block some of the dust.

[0038] Since the stainless steel pipe 5 will make up-and-down reciprocating motions along with the pressure block, and the stainless steel pipe 5 will also be affected by vibrations, in order to prevent the water pump 3 from being affected as well and to reduce the need to set a transmission mechanism to cooperate with the water pump 3 to make up-and-down reciprocating motions, a corresponding soft connection needs to be designed between the water pump 3 and the stainless steel pipe 5, that is, the water pump 3 and the stainless steel pipe 5 are connected through a hose 4; however, the hose 4 is connected to the section where the stainless steel pipe 5 is vertically set, and when the stainless steel pipe 5 makes up-and-down reciprocating motions, the stainless steel pipe 5 will frequently pull the hose 4, and if a simple connection method is used, such as a single clamp or bonding, it is bound to be unsteady, and the stainless steel pipe 5 and the hose 4 are easily separated;

[0039] Therefore, the present application also provides an embodiment, in which the hose 4 is sleeved on the stainless steel tube 5, and a sealant is filled between the outer side of the stainless steel tube 5 and the inner wall of the hose 4, so that a sealing effect is provided by setting the sealant and a simple preliminary connection is formed;

[0040] See also Figure 2 and Figure 3On this basis, a first clamp 7, a second clamp 8 and a third clamp 9 are also required to be provided for cooperation and fixation, wherein the first clamp 7 is sleeved on the hose 4 and is located at the intersection of the hose 4 and the stainless steel pipe 5, and the stainless steel pipe 5 and the hose 4 are locked by the first clamp 7, and the first clamp 7 is used for secondary reinforcement;

[0041] Then, the second clamp 8 is also sleeved on the hose 4 and located at the overlap of the hose 4 and the stainless steel pipe 5, and the third clamp 9 is sleeved on the stainless steel pipe 5, that is, the first clamp 7 is arranged between the second clamp 8 and the third clamp 9, and two symmetrically arranged steel belts 10 are connected between the outer side of the second clamp 8 and the outer side of the third clamp 9, specifically a flat stainless steel belt 10, the steel belt 10 is tightened on the outer side of the first clamp 7, the second clamp 8 and the first clamp 7 reinforce the connection between the stainless steel pipe 5 and the hose 4, the second clamp 8 and the third clamp 9 are connected through the steel belt 10, the second clamp 8 is installed on the hose 4, and then the third clamp 9 is installed on the stainless steel pipe 5, the second clamp 8 and the third clamp 9 cooperate to limit the stainless steel pipe 5 and the hose 4;

[0042] In this embodiment, the first clamp 7 and the second clamp 8 have the same shape and size, that is, the sizes of the first clamp 7 and the second clamp 8 are to match the hose 4. Since the hose 4 is sleeved on the stainless steel pipe 5, the first clamp 7 and the second clamp 8 are larger than the third clamp 9 sleeved on the stainless steel pipe 5. If a steel belt 10 is connected to the outside of the second clamp 8 and the third clamp 9, the steel belt 10 will be inclined. At this time, the two symmetrically arranged steel belts 10 will clamp the first clamp 7 to further enhance the reinforcement effect.

[0043] The present invention further provides a method for using the hydraulic equipment for backfilling the platform, comprising the following steps:

[0044] Driving the hydraulic tamping vehicle 1 to the filling roadbed construction site;

[0045] The hydraulic cylinder 21 is started to move the pressure member 22 downward and strongly compact the ground. When the pressure member 22 contacts the ground, the induction switch 6 is triggered;

[0046] After the induction switch 6 is triggered, the hydraulic cylinder 21 drives the pressure member 22 to move upward, and at the same time starts the water pump 3 to output water to the hose 4. The water flows through the hose 4 and the stainless steel pipe 5 in sequence, sprays outward and drips on the ground in the forward direction of the hydraulic tamping vehicle 1;

[0047] As the pressure member 22 drives the stainless steel pipe 5 upward, the outlet water pressure of the water pump 3 gradually increases, so that the water ejected outward from the stainless steel pipe 5 covers the ground in the advancing direction of the hydraulic rammer 1 from near to far.

[0048] The hydraulic ramming vehicle 1 of the present invention is equipped with a displacement sensor, which detects the travel distance L0 of the hydraulic ramming vehicle 1. The travel distance L0 does not exceed the maximum distance L1 covered by the water sprayed outward from the stainless steel pipe 5. That is, during the construction process, the hydraulic rammer 1 does not travel a longer distance than the longest distance of the water spray each time, ensuring that the pressure member 22 can fall on the ground that absorbs some moisture each time it falls. After the hydraulic cylinder 21 is initially started and the induction switch 6 is triggered, the induction switch 6 can be triggered again after the hydraulic rammer 1 travels a distance L2, and the traveling distance L0 is equal to the traveling distance L2. It can be understood that in this embodiment, the condition for starting the water pump 3 needs to satisfy both the triggering of the induction switch 6 and the traveling distance of the hydraulic rammer 1 reaching the traveling distance L2. The above two conditions are indispensable. If the condition that the hydraulic rammer 1 will not start the water pump 3 until the traveling distance reaches the traveling distance L2 is not set, the water pump 3 will be started each time the pressure member 22 falls. In actual applications, the hydraulic rammer 1 may perform multiple compactions on a certain position. If the water pump 3 is started each time the pressure member 22 falls, the amount of water sprayed will be too much. Therefore, this solution can be used to spray only a small amount of water to make the ground slightly wet and avoid excessive spraying. This can effectively suppress dust without affecting the compaction effect of the soil.

[0049] It should be noted that the terms "first", "second", etc. in this document are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include one or more of the features.

[0050] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered exemplary and non-restrictive in all respects, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention.

Claims

1. A hydraulic device for backfilling a platform, comprising a hydraulic rammer, wherein the hydraulic rammer is provided with a pressure device for compacting the ground, wherein the pressure device comprises a hydraulic cylinder and a pressure member, wherein the hydraulic cylinder drives the pressure member to reciprocate in a vertical direction, and wherein: It also includes a water pump, a hose and a stainless steel pipe, one end of the stainless steel pipe is arranged with an outlet facing the forward direction of the hydraulic ramming vehicle, the other end of the stainless steel pipe is connected to the hose and connected to the water pump through the hose, the outer side of the stainless steel pipe is connected to the pressure member, the bottom of the stainless steel pipe is arranged higher than the bottom surface of the pressure member, the pressure member is provided with a sensing switch, the sensing switch is connected with the water pump signal, the pressure member moves downward in the vertical direction until the sensing switch is triggered and changes to upward movement, the water pump outputs water to the hose in response to the triggering of the sensing switch, the water pressure output by the water pump gradually increases with the rise of the pressure member, the hydraulic ramming vehicle has a traveling distance L0, and the traveling distance L0 does not exceed the farthest distance L1 covered by the water sprayed outward from the stainless steel pipe, after the hydraulic cylinder is initially started and the sensing switch is triggered, the sensing switch can be triggered again after the hydraulic ramming vehicle travels a distance L2, and the traveling distance L0 is equal to the traveling distance L2.

2. The hydraulic equipment for backfilling according to claim 1, characterized in that: The stainless steel pipe is in an L shape, and a reinforcing rod is connected between the inner sides of both ends of the stainless steel pipe. An outlet at one end of the stainless steel pipe radially extends outward to form a bell-mouth shape.

3. The hydraulic equipment for backfilling according to claim 2, characterized in that: The inductive switch includes a distance sensor or a pressure sensor.

4. The hydraulic equipment for backfilling according to claim 1, characterized in that: The hose is sleeved on the stainless steel pipe, and sealant is filled between the outer side of the stainless steel pipe and the inner wall of the hose.

5. The hydraulic equipment for backfilling according to claim 4, characterized in that: It also includes a first clamp, which is sleeved on the hose and located at the overlapping position of the hose and the stainless steel pipe.

6. The hydraulic equipment for backfilling according to claim 5, characterized in that: It also includes a second clamp and a third clamp, the second clamp is sleeved on the hose and located at the overlapping part of the hose and the stainless steel pipe, the third clamp is sleeved on the stainless steel pipe, the first clamp is arranged between the second clamp and the third clamp, and two symmetrically arranged steel belts are connected between the outer side of the second clamp and the outer side of the third clamp, and the steel belts are tightened to the outer side of the first clamp.

7. The hydraulic equipment for backfilling according to claim 3, characterized in that: The hydraulic tamping vehicle is provided with a displacement sensor.

8. A method for using a hydraulic device for backfilling a platform, applied to the hydraulic device for backfilling a platform as claimed in claim 7, characterized in that: The following steps are involved: Drive the hydraulic tamping vehicle to the fill roadbed construction site; Start the hydraulic cylinder to make the pressure piece move downward and strongly compact the ground. When the pressure piece contacts the ground, the induction switch is triggered; After the induction switch is triggered, the hydraulic cylinder drives the pressure piece to move upward, and at the same time starts the water pump to output water to the hose. The water flows through the hose and the stainless steel pipe in turn, sprays outward and drips on the ground in the direction of the hydraulic tamping vehicle. As the pressure piece drives the stainless steel pipe upward, the water pressure of the water pump gradually increases, so that the water sprayed out from the stainless steel pipe covers the ground in the direction of the hydraulic rammer from near to far.

9. The method for using the hydraulic equipment for backfilling according to claim 8, characterized in that: The travel distance L0 of the hydraulic tamping vehicle is detected by the displacement sensor, and the travel distance L0 does not exceed the farthest distance L1 covered by the water sprayed outward from the stainless steel pipe.

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