Device for measuring compaction settlement of dynamic compaction machine

Abstract

The utility model discloses a compaction settlement measuring device of a dynamic compaction machine, which belongs to the technical field of foundation construction survey and comprises a fixed seat, a mounting frame and a ruler. The fixed seat is used for being fixed on a lifting hook of a rammer; the mounting frame is detachably connected with the fixing seat, the mounting frame comprises a connecting part, a supporting rod and a scale mounting part which are fixedly connected in sequence, the connecting part is detachably connected with the fixing seat, and the scale mounting part is used for being detachably connected with a scale. According to the compaction settlement measuring device of the dynamic compaction machine, a specially-assigned person does not need to erect a scale, labor is saved, and personnel safety is ensured; after the lifting hook is lifted down, the reading can be measured, so that the waiting time of workers for standing the scale back and forth is saved, and the construction efficiency is improved; the scale is vertically installed on the lifting hook, the position and the angle are fixed, the reading is more accurate, and the measurement accuracy is improved.

Description

Technical Field

[0001] The utility model relates to a device for measuring the tamping sinking amount of a dynamic tamping machine, belonging to the technical field of foundation construction survey. Background Art

[0002] A dynamic compactor is a machine used to compact soil in construction projects. During operation, the rammer is repeatedly lifted to a certain height and then allowed to fall freely to compact the soil and improve the foundation performance. The Technical Specification for Construction Foundation Treatment JGJ79-2012 stipulates the number of ramming points as follows: The number of ramming points shall be determined based on the relationship curve between the number of ramming points and the ramming settlement amount in the on-site test ramming, and shall also meet the following conditions: (1) The average ramming settlement amount of the last two ramming points shall meet the requirements of the specification; (2) The ground around the ramming pit shall not bulge too much; (3) There shall be no difficulty in lifting the ramming pit due to its being too deep. Therefore, the ramming settlement amount is an important control standard and acceptance criterion for the quality of foundation reinforcement in dynamic compaction construction. The ramming settlement amount of each ramming point needs to be measured during construction.

[0003] The amount of tamping is usually measured using a level and a ruler. During measurement, a level is set up at a safe distance from the tamping point. After the tamping hammer is aligned with the tamping point, the ruler is placed vertically on the tamping hammer for a measurement. After the hammer is lifted for a tamping, the ruler is placed vertically on the tamping hammer for another measurement. The difference between the two data is the tamping amount of this tamping. The current method of measuring tamping has the following problems: (1) During the entire measurement process, two surveyors are required, one of whom is responsible for setting up the ruler and the other is responsible for measuring with the level. (2) There will be flying stones during the tamping construction, and there will be a greater safety risk for the person setting up the ruler nearby. In order to ensure the safety of the personnel, the person setting up the ruler needs to stay away from the tamping point after completing a measurement, generally 20 meters away. The round trip distance is long each time, and the tamping needs to be stopped and waited, which reduces the construction efficiency. (3) When manually setting up the ruler, it is difficult to ensure that the measuring point is in the same position each time, and it is difficult to ensure that the angle of the ruler is the same each time, resulting in errors in the readings.

[0004] It should be noted that the above contents belong to the technical knowledge of the inventor and do not necessarily constitute prior art. Utility Model Content

[0005] In order to solve the problems existing in the prior art, the utility model provides a device for measuring the tamping amount of a dynamic tamping machine, which ensures the safety of personnel and improves the construction efficiency and measurement accuracy.

[0006] The utility model achieves the above-mentioned purpose by adopting the following technical solutions:

[0007] A device for measuring the tamping amount of a dynamic tamping machine, comprising a fixing seat, a mounting frame and a ruler;

[0008] The fixing seat is used to be fixed on the lifting hook of the rammer;

[0009] The mounting frame is detachably connected to the fixing seat, and the mounting frame includes a connecting portion, a support rod and a scale mounting portion which are fixedly connected in sequence, the axis of the support rod is arranged perpendicular to the long axis of the connecting portion, the connecting portion is detachably connected to the fixing seat, and the scale mounting portion is used for detachably connecting to the ruler.

[0010] Optionally, the ruler mounting portion includes a sleeve, the axis of the sleeve is not parallel to the plane determined by the axis of the support rod and the long axis of the connecting portion, and the sleeve is provided with a first hole perpendicular to its own axis; the ruler is provided with a second hole perpendicular to its own axis, the ruler is inserted in the sleeve, and the ruler is connected to the sleeve via a pin passing through the first hole and the second hole, and the pin is interference fit with the second hole.

[0011] Optionally, the ruler includes a ruler body made of rubber material and a height indication mark arranged on the ruler body.

[0012] Optionally, the ruler is cylindrical, and the outer diameter of the ruler matches the inner diameter of the sleeve.

[0013] Optionally, the end of the latch pin is provided with a frustum section which decreases in the outer radial end direction.

[0014] Optionally, the long axis of the fixing seat is arranged parallel to the long axis of the connecting portion and is arranged perpendicular to the supporting rod.

[0015] Optionally, the tamping machine sinking amount measuring device provided by the utility model further includes a latch fixing assembly, wherein the latch fixing assembly includes a cotter pin and a pin hole formed on the latch, and the distance between the two pin holes is not less than the outer diameter of the sleeve.

[0016] Optionally, the fixing seat is welded and fixed to the lifting hook of the rammer.

[0017] Optionally, the fixing seat and the connecting part are connected by bolts.

[0018] The beneficial effects of this application include but are not limited to:

[0019] The tamping sinking amount measuring device provided by the utility model does not need special personnel to set up the ruler, thus saving labor and ensuring the safety of personnel; the reading can be measured after the lifting hook is lowered, thus saving the waiting time for personnel to go back and forth to set up the ruler and improving the construction efficiency; the ruler is installed on the lifting hook in a vertical state, with a fixed position and angle, so the reading is more accurate and the measurement accuracy is improved; the structural arrangement of the fixing seat, the mounting frame and the ruler is reasonable, which is convenient for installation and disassembly, storage and transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0021] Figure 1 This is an assembly state diagram of the device for measuring the tamping amount of a dynamic tamping machine provided by the utility model;

[0022] Figure 2 This is a disassembled state diagram of the compaction sinking measurement device of the dynamic compaction machine provided by the utility model;

[0023] Figure 3 A schematic diagram of a latch fixing assembly being provided on the latch;

[0024] Figure 4 This is a schematic diagram of a rammer and a lifting hook;

[0025] Figure 5 A state diagram of the tamping sinking amount measuring device of the dynamic tamping machine provided by the utility model being installed on the lifting hook of the tamping hammer;

[0026] In the figure, 1, rammer; 2, lifting hook; 100, fixing seat; 200, mounting frame; 210, connecting part; 220, support rod; 230, sleeve; 231, first plug hole; 240, bolt; 300, ruler; 310, second plug hole; 320, height indicator mark; 400, latch; 410, frustum section; 500, cotter pin. DETAILED DESCRIPTION

[0027] In order to clearly illustrate the technical features of the present invention, the present invention is described in detail below through specific implementation methods and in conjunction with the accompanying drawings.

[0028] It should be noted that many specific details are described in the following description to facilitate a full understanding of the present invention, but the present invention can also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited by the specific embodiments disclosed below.

[0029] like Figure 1-Figure 5 As shown in , the device for measuring the tamping amount of a dynamic tamping machine provided by the utility model comprises a fixing seat 100 , a mounting frame 200 and a scale 300 .

[0030] The fixing seat 100 is used to be fixed on the lifting hook 2 of the rammer 1. In a specific implementation, the fixing seat 100 and the mounting frame 200 are made of steel, and the fixing seat 100 can be welded and fixed on the lifting hook 2 of the rammer 1.

[0031] The mounting frame 200 is detachably connected to the fixing seat 100, and the mounting frame 200 includes a connecting portion 210, a support rod 220 and a scale mounting portion which are fixedly connected in sequence, the axis of the support rod 220 is perpendicularly arranged to the long axis of the connecting portion 210, the connecting portion 210 is detachably connected to the fixing seat 100, and the scale mounting portion is used for detachably connecting to the scale 300.

[0032] Specifically, threaded holes are provided on the fixing seat 100 and the connecting portion 210 , and the two are connected by 2-4 bolts 240 , which is convenient and quick.

[0033] Furthermore, the scale mounting portion includes a sleeve 230, the axis of the sleeve 230 is not parallel to the plane determined by the axis of the support rod 220 and the long axis of the connecting portion 210, and the sleeve 230 is provided with a first socket 231 perpendicular to its own axis; the scale 300 is provided with a second socket 310 perpendicular to its own axis, the scale 300 is inserted into the sleeve 230, and the scale 300 is connected to the sleeve 230 via a pin 400 that passes through the first socket 231 and the second socket 310, and the pin 400 is interference fit with the second socket 310.

[0034] In one specific embodiment, the ruler 300 includes a ruler body made of rubber material and a height indication mark 320 arranged on the ruler body. The ruler body made of rubber material can bend when subjected to external force, and remain straight in a vertical state when not subjected to external force. After the fixing base 100, the mounting frame 200 and the ruler 300 are disassembled, they can be conveniently stored and carried.

[0035] The rubber ruler body can make the second plug hole 310 and the plug pin 400 fit tightly together to prevent the two from being separated.

[0036] In actual application, the scale 300 is installed in the sleeve 230, and the connecting portion 210 is connected to the fixing seat 100, so that the tamping amount measuring device provided by the utility model can be installed on the lifting hook 2 of the tamping hammer 1. The function of the support rod 220 is to make the sleeve 230 leave the lifting hook 2 at a certain distance to prevent the scale 300 from contacting the unhooking device and other parts of the tamping hammer 1 when it is installed on the lifting hook 2.

[0037] The tamping amount measuring device provided by the utility model does not require a dedicated person to set up a ruler, which saves labor and ensures the safety of personnel. After completing a tamping, the lifting hook is lowered and connected to the tamping hammer, and the reading can be measured, which saves the waiting time of personnel going back and forth to set up the ruler and improves the construction efficiency; the ruler is installed on the lifting hook in a vertical state, the position and angle are fixed, the reading is more accurate, and the measurement accuracy is improved.

[0038] In one specific embodiment, the scale 300 is cylindrical, has no edges or corners, and is not easily impacted or worn. The outer diameter of the scale 300 matches the inner diameter of the sleeve 230 .

[0039] Furthermore, in order to enable the plug 400 to be smoothly inserted into the second plug hole 310 , a frustum section 410 with a decreasing outer radial direction toward the end is preferably provided at the end of the plug 400 .

[0040] Furthermore, the long axis of the fixing seat 100 is arranged parallel to the long axis of the connecting portion 210 and is arranged perpendicular to the support rod 220. When in use, the sleeve 230 is placed in the vertical direction, and the long axis of the fixing seat 100 and the long axis of the connecting portion 210 are placed in the horizontal direction. The fixing seat 100 is pre-welded to the upper part of the lifting hook 2, and the connecting portion 210 is connected to the fixing seat 100 by bolts 240, so that the scale 300 is installed on the lifting hook 2.

[0041] Furthermore, Figure 3 As shown in the figure, the compaction measurement device provided by the utility model also includes a latch fixing assembly, which includes a split pin 500 and a pin hole provided on the latch, and the distance between the two pin holes is not less than the outer diameter of the sleeve. When in use, after the latch 400 passes through the first plug hole 231 and the second plug hole 310, the split pin is passed through the pin hole and the two pin arms of the split pin are separated to prevent the latch 400 from falling off.

[0042] In the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0043] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0044] The above specific implementation manner cannot be used as a limitation on the protection scope of the utility model. For technicians in this technical field, any replacement, improvement or transformation made to the implementation manner of the utility model falls within the protection scope of the utility model.

[0045] The matters not described in detail in the present invention are all known technologies to those skilled in the art.

Claims

1. A device for measuring the tamping amount of a dynamic tamping machine, characterized in that: Includes a mount, mounting bracket and ruler; The fixing seat is used to be fixed on the lifting hook of the rammer; The mounting frame is detachably connected to the fixing seat, and the mounting frame includes a connecting portion, a support rod and a scale mounting portion which are fixedly connected in sequence, the axis of the support rod is arranged perpendicular to the long axis of the connecting portion, the connecting portion is detachably connected to the fixing seat, and the scale mounting portion is used for detachably connecting to the ruler.

2. The device for measuring the tamping amount of a dynamic tamping machine according to claim 1, characterized in that: The ruler mounting portion includes a sleeve, the axis of the sleeve is not parallel to the plane determined by the axis of the support rod and the long axis of the connecting portion, and the sleeve is provided with a first socket perpendicular to its own axis; the ruler is provided with a second socket perpendicular to its own axis, the ruler is inserted in the sleeve, and the ruler is connected to the sleeve via a pin that passes through the first socket and the second socket, and the pin is interference fit with the second socket.

3. The device for measuring the tamping amount of a dynamic tamping machine according to claim 1, characterized in that: The ruler comprises a ruler body made of rubber material and a height indicating mark arranged on the ruler body.

4. The device for measuring the tamping amount of a dynamic tamping machine according to claim 2, characterized in that: The scale is cylindrical, and the outer diameter of the scale matches the inner diameter of the sleeve.

5. The device for measuring the tamping amount of a dynamic tamping machine according to claim 2, characterized in that: The end of the latch pin is provided with a frustum section which decreases in the outer radial direction toward the end.

6. The device for measuring the tamping amount of a dynamic tamping machine according to claim 2, characterized in that: The long axis of the fixing seat is arranged parallel to the long axis of the connecting portion and is arranged perpendicular to the supporting rod.

7. The device for measuring the tamping amount of a dynamic tamping machine according to claim 1, characterized in that: It also includes a latch fixing assembly, which includes a cotter pin and a pin hole formed on the latch, and the distance between the two pin holes is not less than the outer diameter of the sleeve.

8. The device for measuring the tamping amount of a dynamic tamping machine according to claim 1, characterized in that: The fixing seat is welded and fixed on the lifting hook of the rammer.

9. The device for measuring the tamping amount of a dynamic tamping machine according to claim 1, characterized in that: The fixing seat and the connecting part are connected by bolts.

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