Ground leveling device for engineering construction

By employing an alternating hammer design and an adjustable hammerhead structure, the problems of low efficiency and easy wear and tear in traditional ground leveling devices have been solved, achieving efficient, large-area ground leveling and improved equipment stability.

CN224259151UActive Publication Date: 2026-05-19ZHEJIANG MEIDANG ENVIRONMENTAL ENG CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHEJIANG MEIDANG ENVIRONMENTAL ENG CO LTD
Filing Date
2025-05-13
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

Traditional ground leveling devices are inefficient and their single hammer is easily worn out, making it difficult to meet the needs of large-area construction. They also have poor operational flexibility, which affects construction quality and equipment lifespan.

Method used

It adopts a design with two hammers that slide up and down alternately. The hammer head is controlled by a single drive source to strike vertically alternately. Combined with the adjustable hammer head material and structural design, it can adapt to complex terrain, disperse the impact force, and optimize the force distribution.

Benefits of technology

It improved construction efficiency and equipment stability, extended the service life of the equipment, reduced the risk of equipment failure, and improved the quality of ground leveling and operational safety.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a ground leveling device for engineering construction, which comprises a cart and a machine body fixedly mounted on the cart, and further comprises two hammering pieces arranged on the cart in a sliding manner, a driving device arranged on the cart in a sliding manner, a driving device arranged on the cart in a sliding manner, and a driving device arranged on the driving device and used for driving the driving device to rotate, the driving assembly is arranged in the machine body and used for driving the two hammering pieces to alternately slide up and down to hammer the ground. According to the technical scheme, the design that a single driving source is adopted to control the two hammer heads to vertically and alternately hammer up and down is adopted, the continuity of dynamic operation is improved, the overall efficiency is improved, the moving stability is enhanced, the hammer heads can rotate by a small amplitude relative to the hammer rod, the robot can better adapt to complex terrains, and the robot is convenient to use. The ground leveling effect is improved, the reverse impact force of the ground can be dispersed, stress distribution optimization is achieved, and damage and loss of other parts of the device are reduced.
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Description

Technical Field

[0001] This utility model relates to the field of engineering construction technology, specifically a ground leveling device for engineering construction. Background Technology

[0002] In the field of engineering construction, the traditional ground leveling device, which is equipped with only a single hammer, has many obvious drawbacks. First, the single hammer has low operating efficiency. It needs to hammer the ground point by point and row by row to level it, which is difficult to cover a large area. When encountering large construction projects with tight schedules, it often cannot meet the construction progress requirements.

[0003] Furthermore, with this single hammer, the entire device experiences concentrated force at a single point during operation. This not only accelerates the wear of the hammer itself, shortening its lifespan, but also directly transmits the impact force to other components, increasing the risk of equipment failure. Additionally, the fixed connection between the hammer rod and head in this type of hammer results in poor operational flexibility, making it difficult to adapt to complex ground conditions. Operators must spend considerable time and effort on secondary adjustments, impacting construction quality and efficiency. Utility Model Content

[0004] The purpose of this invention is to provide a ground leveling device for engineering construction, in order to solve the problems of low efficiency and high wear and tear of the single hammer in the prior art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a ground leveling device for engineering construction, comprising a trolley and a body fixedly mounted on the trolley, further comprising: two hammering components slidably disposed on the trolley, each hammering component comprising two hammer rods slidably inserted on the trolley, the bottom of each of the two hammer rods being rotatably mounted with the same set of hammer heads, and a rack fixedly mounted on one side of each hammer rod; a drive assembly disposed within the body of the device, used to drive the two hammering components to alternately slide up and down to hammer the ground, comprising two drive shafts rotatably mounted within the body of the device, the two drive shafts rotating synchronously via a transmission belt, a first half gear and a second half gear being fixedly mounted on the two drive shafts, the teeth of the first half gear and the second half gear being symmetrically oriented, and the first half gear and the second half gear engaging intermittently with the rack for transmission.

[0006] Optionally, the hammer head includes a connecting block rotatably mounted at the bottom of the hammer rod and a hammer block fixedly mounted at the bottom of the connecting block, the hammer block being made of rubber.

[0007] Optionally, a connecting seat is fixedly installed at the bottom of the hammer rod, a connecting shaft is rotatably inserted into the connecting seat, two sets of limiting grooves are opened on the connecting block, and both ends of the connecting shaft are fixedly installed in the limiting grooves.

[0008] Optionally, the cross-section of the limiting groove is V-shaped.

[0009] Optionally, a limiting member is slidably sleeved on the hammer rod, and the protruding end of the limiting member is fixedly installed on the inner wall of the machine body.

[0010] Optionally, a block removing component is arranged on one side of the cart. The block removing component includes two groups of connecting rods fixedly installed at the bottom of the cart. A limiting seat is fixedly installed on one side of the connecting rod. A rotating shaft is fixedly installed on the limiting seat. The same group of push plates are rotatably sleeved on the two rotating shafts.

[0011] Optionally, the cross-section of the push plate is in the shape of a reverse L.

[0012] Optionally, the height of the universal wheel rod body at the bottom of the cart can be adjusted in two levels.

[0013] In the above technical solution, a ground leveling device for engineering construction provided by the present utility model, through the design of using a single driving source to control two hammers to vertically alternate up and down hammering, is beneficial to improving the continuity of dynamic operation, increasing the overall efficiency, enhancing the moving stability, improving the operation safety, optimizing the structural compactness and mobility, simplifying the moving mechanism, reducing the additional power demand by a single driving source, making the overall device lighter, and facilitating turning or climbing movement.

[0014] Moreover, by setting that the hammer head can rotate slightly relative to the hammer rod, it can better adapt to complex terrains, improve the effect of leveling the ground, and also disperse the reverse impact force of the ground, achieve optimized force distribution, and reduce the damage and wear of other components of this device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required to be used in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings.

[0016] Figure 1 It is a schematic diagram of the overall structure provided by an embodiment of the present utility model;

[0017] Figure 2 It is a schematic three-dimensional structure inside the machine body provided by an embodiment of the present utility model;

[0018] Figure 3 It is a schematic cross-sectional structure of the hammering member provided by an embodiment of the present utility model;

[0019] Figure 4 It is a schematic cross-sectional structure of the block removing component provided by an embodiment of the present utility model.

[0020] Explanation of reference numerals in the attached figures:

[0021] 1. Cart; 101. Machine body;

[0022] 2. Hammering component; 201. Hammer rod; 202. Rack; 203. Connecting block; 204. Hammer block; 205. Connecting seat; 206. Connecting shaft; 207. Limiting groove; 208. Limiting component;

[0023] 3. Block removal assembly; 301. Connecting rod; 302. Limit seat; 303. Rotating shaft; 304. Push plate;

[0024] 4. Drive assembly; 401. Drive shaft; 402. First half gear; 403. Second half gear; 404. Drive belt. Detailed Implementation

[0025] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0026] Example 1

[0027] Please see Figures 1-4 This utility model provides a ground leveling device for engineering construction, including a trolley 1 and a body 101 fixedly installed on the trolley 1. It also includes two hammering components 2 slidably disposed on the trolley 1. Each hammering component 2 includes two hammer rods 201 slidably inserted on the trolley 1. The bottom of each hammer rod 201 is rotatably mounted with the same set of hammer heads. By setting two hammer rods 201 on a set of hammer heads, it helps to strengthen the control of the hammer rods 201 over the hammer heads. The hammer rods 201, sliding up and down on the trolley 1, control the hammer heads to hammer the ground, crushing protruding gravel and soil into powder, thereby leveling the ground. A limiting component 208 is slidably sleeved on the hammer rods 201, and the protruding end of the limiting component 208 is fixedly installed on the inner wall of the body 101. The limiting component 208 strengthens the restriction of the vertical displacement of the hammer rods 201, which is beneficial to enhancing the stability of the hammer rods 201 during lifting and lowering.

[0028] A rack 202 is fixedly mounted on one side of the hammer rod 201. A drive assembly 4, located inside the machine body 101, drives the two hammer parts 2 to alternately slide up and down to hammer the ground. This assembly includes two drive shafts 401 rotatably mounted inside the machine body 101. A motor is located on one side of the machine body 101 to drive the drive shafts 401. The output shaft of the motor is coaxially connected to one set of drive shafts 401. The two drive shafts 401 rotate synchronously via a transmission belt 404. A first half-gear 402 is fixedly mounted on each of the two drive shafts 401. The teeth of the second half gear 403, the first half gear 402, and the second half gear 403 are symmetrically oriented. The first half gear 402 and the second half gear 403 are intermittently meshed with the rack 202. That is, when the first half gear 402 is meshed with its adjacent rack 202, the teeth of the second half gear 403 are not in contact with the teeth of its adjacent rack 202. Conversely, when the second half gear 403 is meshed with its adjacent rack 202, the teeth of the first half gear 402 are not in contact with the teeth of its adjacent rack 202.

[0029] This design, employing a single drive source to control two hammers that alternately strike two areas vertically, combined with the mobility of the trolley 1, offers several advantages: First, it enhances the continuity of dynamic operations. The moving area is continuously covered, and the alternating hammering seamlessly covers two target areas along the path, such as road breaking or soil compaction, avoiding repetitive work or omissions at single points and improving overall efficiency. Furthermore, the alternating hammering creates a rhythmic "up-and-down" motion, ensuring uninterrupted hammering during movement, suitable for long-distance, large-area construction scenarios. Second, it improves stability. Force balance helps reduce bumps; the reaction forces of the left and right hammers cancel each other out during alternating hammering, significantly reducing vibration during movement and preventing machine deviation or bumps caused by unilateral impact, thus improving operational safety. Third, it optimizes structural compactness and mobility, simplifies the moving mechanism, and the single drive source reduces additional power requirements, making the overall equipment lighter and easier to maneuver, especially when turning or climbing slopes.

[0030] Specifically, the hammer head includes a connecting block 203 rotatably mounted at the bottom of the hammer rod 201 and a hammer block 204 fixedly mounted at the bottom of the connecting block 203. The hammer block 204 is made of rubber. The connecting block 203 can increase the counterweight of the hammer block 204, thereby increasing the force of the hammer block 204 striking the ground. The rubber material has good elasticity, and the use of rubber material in the hammer block 204 can play a buffering role when striking, which can reduce the vibration of the hammer head rebound on the cart 1 and the damage to 11. It is also beneficial to reduce the reverse damage of soil, gravel and hard structures to the hammer head. If the hammer head is damaged by obvious dents or other damage, it will not be conducive to the effect of leveling the ground.

[0031] Furthermore, a connecting seat 205 is fixedly installed at the bottom of the hammer rod 201, and a connecting shaft 206 is rotatably inserted into the connecting seat 205. Two sets of limiting grooves 207 are opened on the connecting block 203. The cross-section of the limiting groove 207 is V-shaped. Both ends of the connecting shaft 206 are fixedly installed in the limiting groove 207. By setting the connecting seat 205 and the connecting shaft 206, the connecting block 203 can rotate relative to the hammer rod 201. The cross-section of the limiting groove 207 is V-shaped, and its V-angle is small, which restricts the small-amplitude rotation of the connecting block 203 and prevents the connecting block 203 from swinging a large amplitude.

[0032] This design allows for slight rotation between the hammer handle 201 and the hammer head, better adapting to uneven ground. Since the ground is never perfectly flat, various undulations and irregularities will occur during movement. This slight rotation between the hammer head and handle allows the hammer head to automatically adjust its angle according to the ground conditions, resulting in better contact with the surface. For example, when encountering a significant bump, the hammer head can rotate relative to the handle at a certain angle, preventing excessive localized stress and allowing the entire device to move more smoothly on the ground, reducing jamming and bumps, and improving the effectiveness and efficiency of ground leveling. It also disperses the reverse impact force from the ground. As the leveling device moves, the hammer head continuously contacts the ground, generating impact force. The slight rotation structure can, to some extent, change the direction of force transmission, distributing the impact force more evenly across the handle and the entire device. This not only helps protect the hammer head and handle, extending their service life, but also reduces damage to other components of the ground leveling device, lowering maintenance costs and downtime. Furthermore, it optimizes the force distribution. During movement, the small-amplitude rotation structure allows the hammer head to automatically adjust its posture according to the actual force when it contacts the ground, making the contact area between the hammer head and the ground more reasonable and the force distribution more uniform. This can avoid excessive compaction of the ground or uneven flatness caused by excessive local force, and helps to achieve a more uniform and high-quality ground flatness.

[0033] Furthermore, a block removal assembly 3 is provided on one side of the cart 1. The block removal assembly 3 includes two sets of connecting rods 301 fixedly installed at the bottom of the cart 1. A limiting seat 302 is fixedly installed on one side of the connecting rod 301. A rotating shaft 303 is fixedly installed on the limiting seat 302. The same set of push plates 304 are rotatably sleeved on the two sets of rotating shafts 303. The connecting rod 301 connects the push plate 304 to the cart 1. The limiting seat 302 plays a rotation limiting role on the push plate 304, limiting the push plate 304 from rotating slightly when it encounters a slightly convex slope, and preventing the push plate 304 from rotating completely and significantly when it encounters larger or heavier clods of soil and gravel, which would cause the clods of soil and gravel to be unable to be cleaned.

[0034] Furthermore, the cross-section of the push plate 304 is in a shape of '丿'. During the movement of the trolley 1, the arc-shaped structure design of the push plate 304 can effectively push the protruding gravel or large soil masses on the ground away from the area to be leveled. At the same time, if there are local depressions on the ground, the push plate 304 can顺势 push the above-mentioned gravel or soil blocks into the depressions to achieve automatic filling.

[0035] The rod body of the universal wheel at the bottom of the trolley 1 can be adjusted in height at two levels. When the drive source motor is not started, there will be a situation where at least one hammer block 204 is in contact with the ground. Therefore, when it is necessary to move this device to the construction area, extend the rod body of the universal wheel and lift the body 101 to avoid the wear of the hammer block 204 during transportation.

[0036] Only some exemplary embodiments of the present invention have been described by way of illustration. Without doubt, for those of ordinary skill in the art, the described embodiments can be modified in various different ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A ground leveling device for engineering construction, comprising a trolley (1) and a body (101) fixedly mounted on the trolley (1), characterized in that: Further included are: Two hammering members (2) slidably arranged on the trolley (1), each hammering member (2) includes two hammer rods (201) slidably inserted on the trolley (1), and the same set of hammer heads are rotatably installed at the bottoms of the two hammer rods (201), and a rack (202) is fixedly installed on one side of the hammer rod (201); A driving assembly (4) arranged in the machine body (101) for driving the two hammering members (2) to slide up and down alternately to hammer the ground, which includes two driving shafts (401) rotatably installed in the machine body (101), the two driving shafts (401) rotate synchronously through a transmission belt, and first half gears (402) and second half gears (403) are fixedly installed on the two driving shafts (401) in a distributed manner, the tooth surfaces of the first half gears (402) and the second half gears (403) are symmetrically oriented, and the first half gears (402), the second half gears (403) are intermittently meshed and driven with the rack (202).

2. The ground leveling device for engineering construction according to claim 1, characterized in that, The hammer head includes a connecting block (203) rotatably installed at the bottom of the hammer rod (201) and a hammer block (204) fixedly installed at the bottom of the connecting block (203), and the hammer block (204) is made of rubber.

3. A ground leveling device for engineering construction according to claim 2, characterized in that, A connecting seat (205) is fixedly installed at the bottom of the hammer rod (201), a connecting shaft (206) is rotatably inserted on the connecting seat (205), two groups of limiting grooves (207) are formed on the connecting block (203), and both ends of the connecting shaft (206) are fixedly installed in the limiting grooves (207).

4. A ground leveling device for engineering construction according to claim 3, characterized in that, The cross section of the limiting groove (207) is V-shaped.

5. A ground leveling device for engineering construction according to claim 1, characterized in that, A limiting member (208) is slidably sleeved on the hammer rod (201), and the protruding end of the limiting member (208) is fixedly installed on the inner wall of the machine body (101).

6. A ground leveling device for engineering construction according to claim 1, characterized in that, A block removing assembly (3) is arranged on one side of the trolley (1), the block removing assembly (3) includes two groups of connecting rods (301) fixedly installed at the bottom of the trolley (1), a limiting seat (302) is fixedly installed on one side of the connecting rod (301), a rotating shaft (303) is fixedly installed on the limiting seat (302), and the same set of push plates (304) are rotatably sleeved on the two groups of rotating shafts (303).

7. A ground leveling device for engineering construction according to claim 6, characterized in that, The cross section of the push plate (304) is shaped like a reverse L.

8. A ground leveling device for engineering construction according to claim 1, characterized in that, The height of the universal wheel rod body at the bottom of the trolley (1) can be adjusted in two levels.