A grinding and leveling device for ground hardening construction

Abstract

The present invention discloses a grinding and leveling device for ground hardening construction, comprising a grinder and also a lifting caster mechanism, which is arranged at the bottom of the grinder to meet the needs of the grinder to move and grind, and the lifting caster mechanism is set to rise and fall accordingly according to the tilt state of the grinder to compensate for the tilt height of the grinder. This grinding and leveling device for ground hardening construction is different from the existing technology. When the ground leveling grinder moves to a raised position on the ground and causes the grinding disc to tilt relative to the ground, the design of the lifting caster mechanism can be utilized to compensate for the height difference caused by the tilt of the grinding disc through the corresponding lifting of its lifting caster mechanism, thereby ensuring that the grinding disc is parallel to the ground and fully contacts the ground, thereby ensuring the leveling and grinding quality of the hardened ground. In addition, by using a water tank, a pressurizing mechanism and a movable nozzle mechanism, the raised position can also be automatically marked to avoid omission and facilitate subsequent effective grinding and leveling.

Description

Technical Field

[0001] The invention relates to the technical field of building construction, in particular to a grinding and leveling device for ground hardening construction. Background Art

[0002] Ground hardening refers to the use of asphalt or cement to pave the road in urban construction planning in order to have a good road surface so that it will not be eroded by rainwater. This can promote urban construction and economic development of the road surface.

[0003] In the later stage of the ground hardening project, in order to ensure the flatness and aesthetics of the ground hardening, it is necessary to use a grinder to continuously smooth and polish the hardened ground. The existing ground grinders are mainly hand-push type to ensure sufficient and effective grinding of local positions.

[0004] However, during the hand-push grinding process, for the uneven position of the hardened ground that is locally protruding, especially when the grinding machine's moving wheel moves to this position, the horizontal height of the moving wheel at the protrusion will be higher than the horizontal height of the moving wheel on the other side of the grinder, which will directly cause the grinding disc of the grinder to be not parallel to the ground, resulting in uneven grinding at this position, which directly affects the grinding quality of the hardened ground. For this reason, we propose a grinding and leveling device for ground hardening construction. Summary of the Invention

[0005] The purpose of the present invention is to provide a grinding and leveling device that can cope with the hardening construction of the ground with local protrusions and unevenness, so as to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a grinding and leveling device for ground hardening construction, comprising a grinding machine and:

[0007] A lifting caster mechanism is provided at the bottom of the grinder to meet the requirements of the grinder's movement and grinding, and the lifting caster mechanism is set to rise and fall accordingly according to the tilt state of the grinder to compensate for the tilt height of the grinder; and

[0008] a water tank, mounted at the bottom of the grinder, storing colored pigments in the water tank; and

[0009] a pressurizing mechanism installed at the bottom of the grinder, connected to the water tank, and connected to the lifting caster mechanism, so as to maintain the air pressure in the water tank at a constant value during the movement of the grinder; and

[0010] The movable nozzle mechanism is also installed at the bottom of the grinder, and is connected to the water tank and the lifting caster mechanism, so as to synchronously drive the movable nozzle mechanism to spray paint when the lifting caster mechanism is raised or lowered.

[0011] Preferably, the lifting caster mechanism includes a hydraulic cylinder installed at the bottom of the grinder, a fixing seat 1 is installed at the output end of the hydraulic cylinder, a mounting shaft passes through the fixing seat 1, and the mounting shaft is rotatably connected to the fixing seat 1, and a moving wheel is installed at the end of the mounting shaft;

[0012] The lifting caster mechanism further comprises a laser rangefinder installed at the bottom of the grinder, and the hydraulic cylinder is configured to shorten when the laser rangefinder detects that the distance from the ground becomes larger.

[0013] Preferably, the pressure mechanism includes a constant pressure piston component installed at the bottom of the grinder, and the constant pressure piston component is connected to the mounting shaft so as to drive the constant pressure piston component to move when the moving wheel drives the mounting shaft to rotate;

[0014] A one-way pressurizing piston component is also provided at the bottom of the grinder. The one-way pressurizing piston component is communicated with the water tank and connected to the constant pressure piston component to drive the one-way pressurizing piston component to pressurize the water tank when the constant pressure piston component is actuated.

[0015] Preferably, the constant pressure piston component comprises a piston cylinder 1 installed at the bottom of the grinder, a one-way air intake piston piece is provided in the piston cylinder 1, and a push rod is installed on the one-way air intake piston piece;

[0016] A cam is mounted on the mounting shaft, a connecting rod is mounted on the end of the cam by rotating the rotating shaft, and the connecting rod is rotatably connected to the push rod by the rotating shaft, so that the rotation of the mounting shaft drives the one-way air intake piston plate to move back and forth;

[0017] A second piston cylinder is provided at the bottom of the grinder, the second piston cylinder is communicated with the first piston cylinder, and a first piston plate is provided in the second piston cylinder, the first piston plate is connected to the one-way pressurizing piston component;

[0018] A through hole is provided on the side of the piston cylinder away from one end of the push rod, and a constant pressure blocking piston is provided at a position near the through hole at the bottom of the grinder.

[0019] Preferably, the constant pressure sealing piston includes a second fixing seat installed at the bottom of the grinder, a telescopic rod is provided on the second fixing seat, and a piston plate is installed at the end of the telescopic rod, the piston plate completely covers the through hole for sealing, and magnets are embedded on the opposite sides of the second fixing seat and the piston plate, the two magnets are facing each other, and the magnetic poles of the opposite surfaces are the same.

[0020] Preferably, the one-way pressurizing piston component includes a piston cylinder 3 installed at the bottom of the grinder, the piston cylinder 3 is connected to the water tank, and a piston plate 2 is arranged in the piston cylinder 3, and a docking rod is provided between the piston plate 2 and the piston plate 1;

[0021] A continuous tooth groove is provided on the side of the docking rod, and a fixed seat three is provided at the bottom of the grinder. A vertical shaft is rotatably mounted on the fixed seat three, a ratchet mechanism one is mounted on the vertical shaft, and a gear engaged with the tooth groove is mounted on the outer ring of the ratchet mechanism one to limit the unidirectional movement of the docking rod.

[0022] Preferably, a fixing seat four is installed at the bottom of the grinder, a screw rod is threaded through the fixing seat four, the fixing seat three is threadedly installed on the screw rod, and its top edge is parallel to the bottom of the grinder, and a crank is installed at the end of the screw rod to adjust the engagement state of the gear and the tooth groove.

[0023] Preferably, the movable nozzle mechanism includes a nozzle body mounted on a fixed seat 1, and a piston cylinder 4 is mounted on the bottom of the grinder, and a guide column is slidably provided at the port position of the piston cylinder 4, the guide column is seamlessly abutted against the inner wall of the piston cylinder 4, and a groove is provided at the end of the guide column away from the piston cylinder 4, the nozzle body is seamlessly connected, and the nozzle body is communicated with the groove;

[0024] A conduit is installed on the piston cylinder 4, and one end of the conduit away from the piston cylinder 4 is connected to the water tank;

[0025] A movable communication mechanism is provided between the guide column and the piston cylinder four, so that when the hydraulic cylinder contracts, the piston cylinder four is driven to communicate with the groove in the guide column.

[0026] Preferably, the movable connecting mechanism includes a connecting groove provided on the inner wall of the piston cylinder, and a liquid inlet is provided on the side wall of one end of the guide column located inside the piston cylinder, the liquid inlet is connected to the groove inside the guide column, and the liquid inlet is connected to the connecting groove when the guide column moves.

[0027] The present invention has at least the following beneficial effects:

[0028] Different from the existing technology, when the floor leveling grinder moves to a raised position on the ground and causes the grinding disc to tilt relative to the ground, the design of the lifting caster mechanism can be used to compensate for the height difference caused by the tilt of the grinding disc by correspondingly lifting the lifting caster mechanism, ensuring that the grinding disc is parallel to the ground and in full contact, thereby ensuring the leveling and grinding quality of the hardened ground;

[0029] In addition, by using a water tank, a pressurizing mechanism and a movable nozzle mechanism, the raised position can be automatically marked to avoid omissions and facilitate subsequent effective polishing and smoothing. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0031] Figure 2 For the present invention Figure 1 Another structural diagram;

[0032] Figure 3 For the present invention Figure 2 Schematic diagram of the local cross-section structure;

[0033] Figure 4 For the present invention Figure 3 Schematic diagram of the enlarged structure of area A;

[0034] Figure 5 For the present invention Figure 1 Schematic diagram after the grinder is omitted;

[0035] Figure 6 For the present invention Figure 5 Schematic diagram of local explosion structure;

[0036] Figure 7 For the present invention Figure 6 Schematic diagram of the enlarged structure of the middle B area;

[0037] Figure 8 For the present invention Figure 6 Schematic diagram of local explosion structure;

[0038] Figure 9 For the present invention Figure 8 Schematic diagram of the enlarged structure of the middle C area;

[0039] Figure 10 For the present invention Figure 8 Schematic diagram of a partially enlarged structure;

[0040] Figure 11 For the present invention Figure 10 Schematic diagram of the enlarged structure of area D in the middle.

[0041] Figure: 1, grinding machine; 2, lifting caster mechanism; 21, hydraulic cylinder; 22, fixed seat 1; 23, mounting shaft; 24, moving wheel; 25, laser rangefinder; 3, water tank; 4, pressurizing mechanism; 41, constant pressure piston component; 411, piston cylinder 1; 412, one-way air intake piston plate; 413, ejector rod; 414, cam; 415, connecting rod; 416, piston cylinder 2; 417, piston plate 1; 418, through hole; 42, one-way pressurizing piston component; 421, piston cylinder 3; 422, piston plate 2; 4 23. Docking rod; 424. Tooth groove; 425. Fixed seat three; 426. Vertical shaft; 427. Ratchet mechanism one; 428. Gear; 43. Constant pressure blocking piston; 431. Fixed seat two; 432. Telescopic rod; 433. Piston plate; 434. Magnet; 44. Fixed seat four; 45. Screw; 46. Crank; 5. Movable nozzle mechanism; 51. Nozzle body; 52. Piston cylinder four; 53. Guide column; 54. Groove; 55. Conduit; 56. Movable connecting mechanism; 561. Connecting groove; 562. Liquid inlet. DETAILED DESCRIPTION

[0042] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0043] See also Figure 1-11 The present invention provides a technical solution: a grinding and leveling device for ground hardening construction, including a grinder 1, and also including:

[0044] A lifting caster mechanism 2 is provided at the bottom of the grinder 1 to meet the needs of the grinder 1 for moving and grinding, and the lifting caster mechanism 2 is set to rise and fall accordingly according to the tilt state of the grinder 1 to compensate for the tilt height of the grinder 1; and

[0045] A water tank 3 is installed at the bottom of the grinder 1 and stores colored pigments in the water tank 3; and

[0046] A pressurizing mechanism 4 is installed at the bottom of the grinder 1 and is connected to the water tank 3 and the lifting caster mechanism 2 to maintain the air pressure of the water tank 3 at a constant value during the movement of the grinder 1; and

[0047] The movable nozzle mechanism 5 is also installed at the bottom of the grinder 1 and is connected to the water tank 3 and the lifting caster mechanism 2, so as to synchronously drive the movable nozzle mechanism 5 to spray paint when the lifting caster mechanism 2 is raised or lowered;

[0048] Furthermore, in actual use, unlike the prior art, when the floor leveling grinder 1 moves to a raised position on the ground and causes the grinding disc to tilt relative to the ground, the design of the lifting caster mechanism 2 can be utilized to compensate for the height difference caused by the tilt of the grinding disc by correspondingly lifting the lifting caster mechanism 2, thereby ensuring that the grinding disc is parallel to the ground and in full contact, thereby ensuring the leveling and grinding quality of the hardened ground;

[0049] In addition, by using the water tank 3, the pressurizing mechanism 4 and the movable nozzle mechanism 5, the raised position can be automatically and effectively marked to avoid omission and facilitate subsequent effective polishing and smoothing.

[0050] As for the above-mentioned characteristic lifting caster mechanism 2, as a technical means, this feature includes a hydraulic cylinder 21 installed at the bottom of the grinder 1. The hydraulic cylinder 21 can adopt a conventional electronically controlled hydraulic cylinder 21 in the prior art. A fixed seat 22 is installed at the output end of the hydraulic cylinder 21. A mounting shaft 23 runs through the fixed seat 22, and the mounting shaft 23 is rotatably connected to the fixed seat 22. A moving wheel 24 is installed at the end of the mounting shaft 23. In this way, when the moving wheel 24 touches the ground, it is supported by the hydraulic cylinder 21 to meet the mobile grinding use of the grinder 1;

[0051] Furthermore, the lifting caster mechanism 2 also includes a laser rangefinder 25 installed at the bottom of the grinder 1. When the laser rangefinder 25 monitors that the distance from the ground becomes larger, the hydraulic cylinder 21 is shortened. The laser rangefinder 25 can also be a conventional laser rangefinder 25 in the prior art. Here, it is only used to continuously monitor the height of the two sides of the grinder 1 from the ground. Correspondingly, a controller can also be set on the grinder 1. The data measured by the laser rangefinder 25 when the ground is flat is set as the threshold X. When the grinder 1 is tilted, the distance measured by the laser rangefinder 25 on the corresponding side is obviously increasing and the value is Y. At this time, the controller controls the hydraulic cylinder 21 on this side to contract, and the specific contraction distance is YX, so as to compensate for the tilt of the grinder 1 in real time and keep the grinder 1 level with the ground to ensure uniform grinding.

[0052] Regarding the above-mentioned characteristic pressure mechanism 4, similarly, as a technical means, this characteristic includes a constant pressure piston component 41 installed at the bottom of the grinder 1, and the constant pressure piston component 41 is connected to the mounting shaft 23, so that when the moving wheel 24 drives the mounting shaft 23 to rotate, the constant pressure piston component 41 is driven to operate;

[0053] A one-way pressurizing piston component 42 is further provided at the bottom of the grinder 1. The one-way pressurizing piston component 42 is communicated with the water tank 3 and is connected to the constant pressure piston component 41, so that when the constant pressure piston component 41 is actuated, the one-way pressurizing piston component 42 is driven to pressurize the water tank 3.

[0054] Furthermore, during the movement of the grinder 1, the internal pressure of the water tank 3 decreases after the colored pigment is sprayed out. In this case, without an external pressurized air pump, the subsequent pigment cannot be effectively sprayed out. At this time, by using the constant pressure piston component 41 and the one-way pressurized piston component 42, the continuous movement of the moving wheel 24 can be utilized to pressurize the water tank 3, and the air pressure in the water tank 3 is always increased to a constant value to ensure the effective spraying of the colored pigment in the water tank 3.

[0055] Furthermore, as an embodiment, the constant pressure piston component 41 includes a piston cylinder 1 411 installed at the bottom of the grinder 1, and a one-way air intake piston plate 412 is provided in the piston cylinder 1 411. It should be noted that the so-called one-way air intake piston plate 412 is a traditional one-way sealing piston structure, that is, when moving in the forward direction, the one-way air intake piston plate 412 is a sealing structure, and when moving in the reverse direction, the one-way air intake piston plate 412 will produce an opening for air release, which is equivalent to a one-way valve plate. Extensive details will not be given here, and a push rod 413 is installed on the one-way air intake piston plate 412;

[0056] A cam 414 is mounted on the mounting shaft 23. A connecting rod 415 is mounted on the end of the cam 414 and is rotatably connected to the push rod 413 via the rotating shaft. The rotation of the mounting shaft 23 drives the one-way air intake piston plate 412 to reciprocate.

[0057] A second piston cylinder 416 is provided at the bottom of the grinder 1. The second piston cylinder 416 is connected to the first piston cylinder 411. A first piston piece 417 is provided inside the second piston cylinder 416. The first piston piece 417 is connected to the one-way pressurizing piston component 42.

[0058] A through hole 418 is provided on the side of the piston cylinder 411 away from one end of the push rod 413, and a constant pressure blocking piston 43 is provided at the bottom of the grinder 1 near the through hole 418;

[0059] Furthermore, in actual use, when the grinder 1 moves for grinding, the mounting shaft 23 is driven to rotate by the moving wheel 24, and cooperates with the cam 414, the connecting rod 415 and the push rod 413 to drive the one-way air intake piston plate 412 to move periodically. It should be noted that when the one-way air intake piston plate 412 moves inward, it is inflated, and when it moves outward, the one-way air intake piston plate 412 takes air into the piston cylinder 411 to continuously pressurize and inflate, and drive the one-way pressurizing piston component 42 to move, thereby continuously inflating and pressurizing the water tank 3, and when the internal pressure of the water tank 3 reaches a constant value (which can drive the colored pigment to spray out stably), when the grinder 1 continues to move for grinding, it will drive the constant pressure sealing piston 43 to open so that the gas leaks from there, and will not continue to pressurize the water tank 3 and bring adverse effects.

[0060] Furthermore, the above-mentioned constant-pressure sealing piston 43 includes a second fixing seat 431 installed at the bottom of the grinder 1, a telescopic rod 432 is provided on the second fixing seat 431, and a piston plate 433 is installed at the end of the telescopic rod 432, the piston plate 433 completely covers the through hole 418 for sealing, and magnets 434 are embedded on the opposite sides of the second fixing seat 431 and the piston plate 433, the two magnets 434 are facing each other, and the relative magnetic poles are the same, and then the magnetic repulsion of the two magnets 434 is used to provide a certain resistance for the piston plate 433. Specifically, its resistance is equal to the internal pressure in the water tank 3 when the paint can be sprayed out, so that when the water tank 3 is pressurized, it can automatically move through the piston plate 433 to deflate when the pressure is increased to a constant value, so as to avoid continuous excessive pressurization of the water tank 3.

[0061] Furthermore, the one-way pressurizing piston component 42 includes a piston cylinder 3 421 mounted on the bottom of the grinder 1 , the piston cylinder 3 421 is in communication with the water tank 3 , and a piston piece 2 422 is disposed in the piston cylinder 3 421 , and a docking rod 423 is disposed between the piston piece 2 422 and the piston piece 1 417 ;

[0062] A continuous tooth groove 424 is provided on the side of the docking rod 423, and a fixed seat three 425 is provided at the bottom of the grinder 1, a vertical shaft 426 is rotatably mounted on the fixed seat three 425, a ratchet mechanism 1 427 is installed on the vertical shaft 426, and a gear 428 is installed on the outer ring of the ratchet mechanism 1 427 and engages with the tooth groove 424 to limit the unidirectional movement of the docking rod 423. In use, when the one-way air intake piston plate 412 moves, the docking rod 423 drives the piston plate 2 422 to move and apply pressure. At the same time, the docking rod 423 is driven to move in one direction under the cooperation of the ratchet mechanism 1 427, the tooth groove 424 and the gear 428, that is, when it moves to any position, the docking rod 423 will be driven to maintain its position, so that when the constant pressure piston component 41 is deflated, the water tank 3 will not be depressurized.

[0063] Furthermore, a fixing seat four 44 is installed at the bottom of the grinder 1, and a screw 45 is threaded through the fixing seat four 44. The fixing seat three 425 is threadedly installed on the screw 45, and its top edge is parallel to the bottom of the grinder 1 and a crank 46 is installed at the end of the screw 45 to adjust the engagement state of the gear 428 and the tooth groove 424, so as to facilitate the cancellation of the limit of the docking rod 423, so as to reset the piston piece two 422 for adding pigment to the water tank 3.

[0064] Furthermore, the movable nozzle mechanism 5 includes a nozzle body 51 mounted on the fixing seat 1 22, and a piston cylinder 4 52 is mounted on the bottom of the grinder 1, and a guide post 53 is slidably provided at the end of the piston cylinder 4 52. The guide post 53 seamlessly abuts against the inner wall of the piston cylinder 4 52, and a groove 54 is formed at the end of the guide post 53 away from the piston cylinder 4 52. The nozzle body 51 is seamlessly connected to the guide post 53, and the nozzle body 51 is communicated with the groove 54.

[0065] A conduit 55 is installed on the piston cylinder 52, and one end of the conduit 55 away from the piston cylinder 52 is connected to the water tank 3;

[0066] A movable connecting mechanism 56 is provided between the guide post 53 and the piston cylinder 52. The movable connecting mechanism 56 includes a connecting groove 561 provided on the inner wall of the piston cylinder 52, and a liquid inlet 562 is provided on the side wall of the end of the guide post 53 located in the piston cylinder 52. The liquid inlet 562 is connected to the groove 54 inside the guide post 53, and when the guide post 53 moves, the liquid inlet 562 is connected to the connecting groove 561. It should be noted that in the initial state, the liquid inlet 562 and the connecting groove 561 are misaligned and not connected. , and then when the hydraulic cylinder 21 contracts, the guide post 53 is driven to move. At this time, the liquid inlet 562 is connected to the connecting groove 561, and the pigment in the piston cylinder 52 enters the groove 54 and is sprayed out through the nozzle body 51 to mark. It should be noted that as long as the guide post 53 moves, the liquid inlet 562 is connected to the connecting groove 561, but when the guide post 53 continues to move (when the protrusion is large and the hydraulic cylinder 21 contracts a lot), the liquid inlet 562 will be misaligned with the connecting groove 561, avoiding the problem of pigment waste caused by continuous spraying.

[0067] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0068] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A grinding and leveling device for ground hardening construction, comprising a grinding machine (1), characterized in that: Also included are: A lifting caster mechanism (2) is provided at the bottom of the grinder (1) to meet the needs of the grinder (1) for moving and grinding, and the lifting caster mechanism (2) is set to rise and fall accordingly according to the tilt state of the grinder (1) to compensate for the tilt height of the grinder (1); and A water tank (3) is installed at the bottom of the grinder (1), and the colored pigment is stored in the water tank (3); and A pressurizing mechanism (4) is installed at the bottom of the grinder (1), is communicated with the water tank (3), and is connected to the lifting caster mechanism (2), so as to maintain the air pressure in the water tank (3) at a constant value by utilizing the movement of the grinder (1); and A movable nozzle mechanism (5), the movable nozzle mechanism (5) is also installed at the bottom of the grinder (1), and is communicated with the water tank (3), and is connected to the lifting caster mechanism (2), so as to synchronously drive the movable nozzle mechanism (5) to spray paint when the lifting caster mechanism (2) is raised or lowered; The lifting caster mechanism (2) includes a mounting shaft (23) and a hydraulic cylinder (21) mounted on the bottom of the grinder (1), a fixing seat (22) is mounted on the output end of the hydraulic cylinder (21), the mounting shaft (23) passes through the fixing seat (22), and the mounting shaft (23) is rotatably connected to the fixing seat (22), and a moving wheel (24) is mounted on the end of the mounting shaft (23); The lifting caster mechanism (2) further comprises a laser rangefinder (25) mounted on the bottom of the grinder (1), and the hydraulic cylinder (21) is shortened when the laser rangefinder (25) detects that the distance from the ground increases; The pressurizing mechanism (4) includes a constant pressure piston component (41) installed at the bottom of the grinder (1), and the constant pressure piston component (41) is connected to the mounting shaft (23) so as to drive the constant pressure piston component (41) to move when the moving wheel (24) drives the mounting shaft (23) to rotate; A one-way pressurizing piston component (42) is also provided at the bottom of the grinder (1). The one-way pressurizing piston component (42) is communicated with the water tank (3) and is connected to the constant pressure piston component (41) so as to drive the one-way pressurizing piston component (42) to pressurize the water tank (3) when the constant pressure piston component (41) is actuated.

2. A grinding and leveling device for ground hardening construction according to claim 1, characterized in that: The constant pressure piston component (41) includes a piston cylinder (411) installed at the bottom of the grinder (1), a one-way air intake piston plate (412) is provided in the piston cylinder (411), and a push rod (413) is installed on the one-way air intake piston plate (412); A cam (414) is mounted on the mounting shaft (23), a connecting rod (415) is mounted on the end of the cam (414) by rotating the shaft, and the connecting rod (415) is rotatably connected to the push rod (413) by the shaft, so that the one-way air intake piston plate (412) is driven to reciprocate by rotating the mounting shaft (23); A second piston cylinder (416) is further provided at the bottom of the grinder (1), the second piston cylinder (416) is communicated with the first piston cylinder (411), and a first piston plate (417) is provided in the second piston cylinder (416), and the first piston plate (417) is connected to the one-way pressurizing piston component (42); A through hole (418) is provided on the side of the piston cylinder (411) away from one end of the push rod (413), and a constant pressure blocking piston (43) is provided at the bottom of the grinder (1) near the through hole (418).

3. The grinding and leveling device for ground hardening construction according to claim 2, characterized in that: The constant pressure blocking piston (43) includes a second fixing seat (431) mounted on the bottom of the grinder (1), a telescopic rod (432) is provided on the second fixing seat (431), and a piston plate (433) is installed at the end of the telescopic rod (432), the piston plate (433) completely covers the through hole (418) for sealing, and magnets (434) are embedded on opposite sides of the second fixing seat (431) and the piston plate (433), and the two magnets (434) are facing each other, and the magnetic poles of the opposite surfaces are the same.

4. The grinding and leveling device for ground hardening construction according to claim 3, characterized in that: The one-way pressurizing piston component (42) includes a piston cylinder three (421) installed at the bottom of the grinder (1), the piston cylinder three (421) is connected to the water tank (3), and a piston plate two (422) is provided in the piston cylinder three (421), and a docking rod (423) is provided between the piston plate two (422) and the piston plate one (417); A continuous tooth groove (424) is provided on the side of the docking rod (423), and a fixed seat three (425) is provided at the bottom of the grinder (1). A vertical shaft (426) is rotatably mounted on the fixed seat three (425), a ratchet mechanism one (427) is mounted on the vertical shaft (426), and a gear (428) engaged with the tooth groove (424) is mounted on the outer ring of the ratchet mechanism one (427) to limit the unidirectional movement of the docking rod (423).

5. The grinding and leveling device for ground hardening construction according to claim 4, characterized in that: A fixing seat four (44) is installed at the bottom of the grinder (1), and a screw rod (45) is threadedly passed through the fixing seat four (44). The fixing seat three (425) is threadedly installed on the screw rod (45), and its top edge is parallel to the bottom of the grinder (1). A crank (46) is installed at the end of the screw rod (45) to adjust the engagement state of the gear (428) and the tooth groove (424).

6. The grinding and leveling device for ground hardening construction according to claim 5, characterized in that: The movable nozzle mechanism (5) includes a nozzle body (51) mounted on a fixing seat (22), and a piston cylinder (52) is mounted on the bottom of the grinder (1), and a guide column (53) is slidably provided at the port of the piston cylinder (52), the guide column (53) is seamlessly abutted against the inner wall of the piston cylinder (52), and a groove (54) is provided at one end of the guide column (53) away from the piston cylinder (52), the nozzle body (51) is seamlessly connected to the guide column (53), and the nozzle body (51) is communicated with the groove (54); A conduit (55) is installed on the piston cylinder four (52), and one end of the conduit (55) away from the piston cylinder four (52) is connected to the water tank (3); A movable communication mechanism (56) is provided between the guide column (53) and the piston cylinder (52) to drive the piston cylinder (52) and the inner groove (54) of the guide column (53) to communicate when the hydraulic cylinder (21) contracts.

7. The grinding and leveling device for ground hardening construction according to claim 6, characterized in that: The movable connecting mechanism (56) includes a connecting groove (561) provided on the inner wall of the piston cylinder (52), and a liquid inlet (562) is provided on the side wall of one end of the guide column (53) located inside the piston cylinder (52). The liquid inlet (562) is connected to the groove (54) inside the guide column (53), and the liquid inlet (562) is connected to the connecting groove (561) when the guide column (53) moves.

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