Compaction apparatus capable of conveniently adjusting height of drop hammer

By designing pluggable latch and slot system in the fixing device, the inconvenience of the existing fixing device in switching test types is solved, and the rapid adjustment of the height of the fixing hammer and the improvement of test efficiency is achieved.

CN222965225UActive Publication Date: 2025-06-10CHANGZHOU ARCHITECTUAL RES INST GRP CO LTD
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Patent Information

Application Number
CN202421190259.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-05-28
Publication Date
2025-06-10
Estimated Expiration
2034-05-28

AI Technical Summary

Technical Problem

The existing compactor switches between light and heavy tests are inconvenient, which affects the efficiency of the compactor test.

Method used

By setting a slot and a latch on the fixing hammer, combining the design of the slider and limit baffle, the mounting position of the positioning baffle is adjusted by using the up and down insertion of the pin to adjust the installation position of the positioning baffle, and the rapid adjustment of the height of the fixing hammer drop hammer is achieved.

Benefits of technology

This design simplifies the installation and disassembly of the positioning baffle, improves the switching efficiency between light and heavy tests, and thus improves the overall efficiency of the sample fixing test.

✦ Generated by Eureka AI based on patent content.

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Abstract

The compaction apparatus comprises a compaction hammer, a first sliding rod, a positioning baffle plate, a sliding block and a limiting baffle plate, a clamping groove is formed in the peripheral surface of the compaction hammer, a first mounting hole and a second mounting hole are formed in the first sliding rod, the second mounting hole is located above the first mounting hole, the positioning baffle plate penetrates through the first sliding rod, and the sliding block penetrates through the positioning baffle plate. The positioning baffle is provided with a bolt and a limiting hole, the top of the bolt is provided with a pull ring, the bolt is inserted into the limiting hole and abuts against the first sliding rod, the sliding block penetrates through the first sliding rod and is in sliding connection with the first sliding rod, and the limiting baffle is connected with the sliding block through an adjusting mechanism. According to the utility model, the mounting position of the positioning baffle plate is adjusted through up-down plugging of the plug pin, and compared with a mounting and dismounting manner of screwing a bolt in a narrow space, the manner can realize quick mounting and dismounting of the positioning baffle plate, so that the drop height of the compaction hammer is adjusted, and the efficiency of a sample compaction test can be improved.
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Description

Technical Field

[0001] The utility model relates to the technical field of construction engineering, in particular to a compactor for conveniently adjusting the dropping height of a dropping hammer. Background Technique

[0002] In construction works such as hydraulic engineering and civil engineering, compaction tests need to be carried out on the filling soil before rolling construction. The compaction test simulates the compaction principle of the project site through a compactor, applies a certain impact load to the soil to compact it, so as to determine the required maximum dry density and optimal moisture content, and provides the compaction control index of the soil for the design of the filling project and the on-site rolling construction. The compaction test is an indispensable test item for soil filling (such as dams, roadbeds, building foundations, etc.). The compaction test is divided into light and heavy tests according to factors such as different properties of the soil body and different construction sites. The dropping height of the dropping hammer of the light test is lower than that of the dropping hammer of the heavy test. Therefore, during the compaction test, it is necessary to adjust the dropping height of the dropping hammer according to the test requirements. For this reason, we need to provide a compactor for conveniently adjusting the dropping height of the dropping hammer.

[0003] The existing compactor includes: a gear belt mechanism, a slider, a slide bar, a limit baffle, a positioning baffle and a dropping hammer. The limit baffle is located between the gear belt mechanism and the dropping hammer and is fixed on the slide bar by bolts. The dropping height of the dropping hammer is adjusted by adjusting the position of the limit baffle relative to the slide bar. However, due to the narrow space between the gear belt mechanism and the dropping hammer, a slider and a positioning baffle are also arranged in the narrow space, and the installation method of the limit baffle and the slide bar is bolt installation. During the adjustment of the position of the limit baffle relative to the slide bar, the bolts are extremely easy to fall off, which is not convenient for the installation and fixation of the limit baffle, thus affecting the adjustment of the dropping height of the dropping hammer, further affecting the switching between the light test and the heavy test of the compactor, and finally affecting the efficiency of the sample compaction test. Content of the Utility Model

[0004] The technical problem to be solved by the utility model is: in order to solve the technical problem that the switching between the light test and the heavy test of the existing compactor is not convenient, the utility model provides a compactor for conveniently adjusting the dropping height of the dropping hammer. By adjusting the structure of the compactor, it is convenient to adjust the dropping height of the dropping hammer, so as to realize the switching between the light test and the heavy test of the compactor.

[0005] The technical solution adopted by the present utility model to solve its technical problems is as follows: A compaction tester for conveniently adjusting the height of a drop hammer, comprising: a compaction hammer, a first sliding rod, a positioning baffle, a slider and a limit baffle. A clamping groove is formed on the outer peripheral surface of the compaction hammer. The first sliding rod is provided with a first mounting hole and a second mounting hole, and the second mounting hole is located above the first mounting hole. The positioning baffle penetrates through the first sliding rod. The positioning baffle is provided with a pin. The positioning baffle is provided with a limit hole. A pull ring is arranged at the top of the pin. The pin is inserted into the limit hole and abuts against the first sliding rod. The slider penetrates through the first sliding rod and is slidably connected to the first sliding rod. The limit baffle is connected to the slider through an adjusting mechanism and can move towards the side close to the compaction hammer or away from the side of the compaction hammer. When the limit baffle is inserted into the clamping groove, the slider can drive the compaction hammer to move. When the limit baffle disengages from the clamping groove, the compaction hammer can freely fall. Among them: When the positioning baffle is inserted into the first mounting hole, the compaction hammer is used for a light compaction test. When the positioning baffle is inserted into the second mounting hole, the compaction hammer is used for a heavy compaction test.

[0006] Thus, during the switching process between the light compaction test and the heavy compaction test, the installation position of the positioning baffle is adjusted by inserting and pulling out the pin up and down. Compared with the installation and disassembly method of screwing bolts in a narrow space, this method has a simple structure and is easy to operate, and can realize the rapid installation and disassembly of the positioning baffle to adjust the drop height of the compaction hammer, thereby improving the switching efficiency between the light compaction test and the heavy compaction test, and further improving the efficiency of the sample compaction test.

[0007] Furthermore, the positioning baffle is further provided with a connecting block. The connecting block penetrates through the first sliding rod. The limit hole is formed on the connecting block and is located on the side of the first sliding rod away from the positioning baffle. Among them: When the connecting block is inserted into the first mounting hole and the second mounting hole, the pin is located on the side of the first sliding rod away from the positioning baffle, and the side surface of the pin close to the positioning baffle abuts against the first sliding rod.

[0008] Furthermore, the adjusting mechanism includes: an adjusting part and a sliding part. The adjusting part abuts against the limit baffle. The limit baffle is slidably mounted on the slider through the sliding part.

[0009] Further, the adjusting part includes: a first stop block located at the bottom of the first sliding rod, and a slope is provided on one side of the first stop block; the adjusting part further includes: a second stop block, a first support rod, a first spring, and a second support rod. The second stop block is rotatably connected to the slider. One end of the first support rod abuts against the second stop block. The other end of the first support rod is inserted into the slider and is slidably connected to the slider. The second support rod penetrates through the slider and is slidably connected to the slider. The second support rod abuts against the second stop block. The first spring is sleeved on the first support rod, and both ends of the first spring are respectively connected to the second stop block and the slider.

[0010] Further, the sliding part includes: a second sliding rod and a second spring. One end of the second sliding rod is connected to the limiting baffle. The other end of the second sliding rod is inserted into the slider and is slidably connected to the slider. The second spring is sleeved on the second sliding rod, and both ends of the second sliding rod are respectively connected to the slider and the limiting baffle. Thus, through the mutual cooperation of the adjusting part and the sliding part, the position of the limiting baffle can be controlled to realize the upward movement and free fall of the compaction hammer.

[0011] Further, it further includes: a driving mechanism, which includes: a first motor, a first gear, a second gear, and a belt. The output end of the first motor is connected to the first gear. Both the first gear and the second gear are meshed with the belt. The slider is connected to the belt. Thus, the up and down movement of the slider can be controlled to realize the compaction test of the specimen.

[0012] Further, it further includes: a box body, with a bottom plate and a top plate arranged inside the box body. The upper and lower ends of the first sliding rod are respectively connected to the top plate and the bottom plate. The first motor is connected to the box body. The first stop block is connected to the bottom plate. The second gear is rotatably connected to the bottom plate. The first gear is rotatably connected to the top plate.

[0013] Further, a first box door and a second box door are arranged outside the box body. The first box door and the second box door are connected by a buckle.

[0014] Further, a plurality of guide rods are arranged outside the compaction hammer. The upper and lower ends of the guide rods are respectively connected to the top plate and the bottom plate. Thus, the guide rods can guide the compaction hammer to ensure that the compaction hammer can only move up and down along its axial direction without deviation.

[0015] Further, it further includes: a base, the box body is connected to the base, and a compaction barrel is arranged on the base and below the box body. Thus, the compaction barrel is used to hold the specimen for the compaction test.

[0016] Compared with the prior art, the beneficial effects of the present utility model are:

[0017] During the switching process between the light compaction test and the heavy compaction test, the installation position of the positioning baffle is adjusted by inserting and pulling out the pin up and down. Compared with the installation and disassembly method of screwing bolts in a narrow space, this method has a simple structure and is easy to operate, and can realize the rapid installation and disassembly of the positioning baffle to adjust the drop height of the compaction hammer, thereby improving the switching efficiency between the light compaction test and the heavy compaction test, and further improving the efficiency of the specimen compaction test. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present utility model will be further described below in conjunction with the drawings and embodiments.

[0019] Figure 1 It is a schematic structural diagram of the first state of the compaction apparatus for conveniently adjusting the drop height of the present utility model;

[0020] Figure 2 It is a schematic structural diagram of the second state of the compaction apparatus for conveniently adjusting the drop height of the present utility model;

[0021] Figure 3 It is a schematic structural diagram of the box body, the first box door, the second box door, the base and the compaction barrel of the present utility model;

[0022] Figure 4 It is a schematic structural diagram of the installation of the compaction hammer, the first sliding rod, the positioning baffle, the slider, the limit baffle, the adjusting mechanism and the driving mechanism of the present utility model;

[0023] Figure 5 It is an exploded view of the first sliding rod and the positioning baffle of the present utility model;

[0024] Figure 6 It is a schematic structural diagram of the installation of the limit baffle and the sliding part of the present utility model;

[0025] Figure 7 It is a schematic diagram of the structure of the driving mechanism of the present utility model;

[0026] Figure 8 It is a schematic structural diagram of the limit baffle in a disengaged state of the present utility model;

[0027] Figure 9 It is a schematic structural diagram of the limit baffle in a clamped state of the present utility model.

[0028] In the figure: 1. Compaction hammer; 101. Card slot; 102. Guide rod; 2. First sliding rod; 201. First mounting hole; 202. Second mounting hole; 3. Positioning baffle; 301. Pin; 302. Limit hole; 303. Pull ring; 304. Connecting block; 4. Slide block; 5. Limit baffle; 6. Adjusting mechanism; 7. Adjusting part; 701. First stop block; 7011. Inclined surface; 702. Second stop block; 703. First support rod; 704. First spring; 705. Second support rod; 8. Sliding part; 801. Second sliding rod; 802. Second spring; 9. Driving mechanism; 901. First motor; 902. First gear; 903. Second gear; 904. Belt; 10. Box body; 11. Bottom plate; 12. Top plate; 13. First box door; 14. Second box door; 15. Buckle part; 16. Base; 17. Compaction barrel. Detailed implementation manners

[0029] Now, the present utility model will be further described in detail with reference to the accompanying drawings. These drawings are all simplified schematic diagrams, only illustrating the basic structure of the present utility model in a schematic manner, so they only show the components related to the present utility model.

[0030] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, so it cannot be understood as a limitation to the present utility model. In addition, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise specified, the meaning of "a plurality" is two or more.

[0031] In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, the terms "installation", "connection", and "connection" 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 a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0032] As Figures 1 to 9As shown in the figure, this is the optimal embodiment of the present utility model. The compaction hammer for conveniently adjusting the drop height of the drop hammer in this embodiment includes: a compaction hammer 1, a first sliding rod 2, a positioning baffle 3, a slider 4, and a limit baffle 5. A clamping groove 101 is formed on the outer peripheral surface of the compaction hammer 1. The first sliding rod 2 is provided with a first mounting hole 201 and a second mounting hole 202. The second mounting hole 202 is located above the first mounting hole 201. The positioning baffle 3 penetrates through the first sliding rod 2. The positioning baffle 3 is provided with a pin 301. The positioning baffle 3 is provided with a limit hole 302. The top of the pin 301 is provided with a pull ring 303. The pin 301 is inserted into the limit hole 302 and abuts against the first sliding rod 2. The slider 4 penetrates through the first sliding rod 2 and is slidably connected to the first sliding rod 2. The limit baffle 5 is connected to the slider 4 through an adjusting mechanism 6 and can move toward the side close to the compaction hammer 1 or away from the compaction hammer 1. When the limit baffle 5 is inserted into the clamping groove 101, the slider 4 can drive the compaction hammer 1 to move. When the limit baffle 5 disengages from the clamping groove 101, the compaction hammer 1 can freely fall; wherein: when the positioning baffle 3 is inserted into the first mounting hole 201, the compaction hammer 1 is used for the light compaction test. When the positioning baffle 3 is inserted into the second mounting hole 202, the compaction hammer 1 is used for the heavy compaction test. Thus, during the switching process between the light compaction test and the heavy compaction test, the installation position of the positioning baffle 3 is adjusted by inserting and pulling out the pin 301 up and down. Compared with the installation and disassembly method of screwing bolts in a narrow space, this method has a simple structure and is easy to operate, and can realize the quick installation and disassembly of the positioning baffle 3 to realize the adjustment of the drop height of the compaction hammer 1, thereby improving the switching efficiency between the light compaction test and the heavy compaction test, and further improving the efficiency of the sample compaction test.

[0033] In other words, during installation, first insert the positioning baffle 3 into the first mounting hole 201 or the second mounting hole 202, and then insert the pin 301 into the limit hole 302. During disassembly, first pull out the pin 301 from the limit hole 302, and then pull out the positioning baffle 3 from the first mounting hole 201 or the second mounting hole 202. The installation and disassembly of the position of the positioning baffle 3 can be realized only by two insertions and extractions. By operating like this, the quick installation and disassembly of the positioning baffle 3 can be realized.

[0034] In this embodiment, the positioning baffle 3 is further provided with a connecting block 304. The connecting block 304 penetrates through the first sliding rod 2, and a limiting hole 302 is formed in the connecting block 304 and is located on the side of the first sliding rod 2 away from the positioning baffle 3. Among them: when the connecting block 304 is inserted into the first mounting hole 201 and the second mounting hole 202, the pin 301 is located on the side of the first sliding rod 2 away from the positioning baffle 3, and the side surface of the pin 301 close to the positioning baffle 3 abuts against the first sliding rod 2. Specifically, the installation method: select the first mounting hole 201 or the second mounting hole 202 for installation according to the light compaction test or the heavy compaction test, insert the connecting block 304 into the corresponding mounting hole, and then insert the pin 301 into the limiting hole 302; the disassembly method: pull out the pin 301 from the limiting hole 302 through the pull ring 303, and then pull out the positioning baffle 3 from the first mounting hole 201 or the second mounting hole 202.

[0035] In this embodiment, the adjusting mechanism 6 includes an adjusting part 7 and a sliding part 8. The adjusting part 7 abuts against the limiting baffle 5, and the limiting baffle 5 is slidably mounted on the slider 4 through the sliding part 8. The adjusting part 7 includes a first stop block 701, a second stop block 702, a first support rod 703, a first spring 704 and a second support rod 705. The first stop block 701 is located at the bottom of the first sliding rod 2, and a slope 7011 is provided on one side of the first stop block 701. The second stop block 702 is rotatably connected to the slider 4. One end of the first support rod 703 abuts against the second stop block 702. The other end of the first support rod 703 is inserted into the slider 4 and is slidably connected to the slider 4. The second support rod 705 penetrates through the slider 4 and is slidably connected to the slider 4. The second support rod 705 abuts against the second stop block 702. The first spring 704 is sleeved on the first support rod 703, and both ends of the first spring 704 are respectively connected to the second stop block 702 and the slider 4. The sliding part 8 includes a second sliding rod 801 and a second spring 802. One end of the second sliding rod 801 is connected to the limiting baffle 5. The other end of the second sliding rod 801 is inserted into the slider 4 and is slidably connected to the slider 4. The second spring 802 is sleeved on the second sliding rod 801, and both ends of the second sliding rod 801 are respectively connected to the slider 4 and the limiting baffle 5. Thus, through the mutual cooperation of the adjusting part 7 and the sliding part 8, the position of the limiting baffle 5 can be controlled to realize the upward movement and free fall of the compaction hammer 1.

[0036] Specifically, during the upward movement of the slider 4, the first spring 704 is in a normal state, and the second spring 802 is in an extended state. The side of the limit baffle 5 away from the compaction hammer 1 abuts against the second stop block 702, and the side of the limit baffle 5 close to the compaction hammer 1 is stuck in the card slot 101. Thus, the upward movement of the slider 4 can drive the compaction hammer 1 to move upward; during the downward movement of the slider 4, the first spring 704 is in a compressed state, and the second spring 802 is in a normal state. The second baffle abuts against the top of the limit baffle 5, and the side of the limit baffle 5 away from the compaction hammer 1 disengages from the card slot 101. The downward movement of the slider 4 does not interfere with the free fall of the compaction hammer 1; as Figure 8 shown, when the slider 4 abuts against the positioning baffle 3, the second support rod 705 is pressed downward, and the second baffle rotates under the action of the second support rod 705. When the second baffle no longer abuts against the side of the limit baffle 5 away from the compaction hammer 1, the limit baffle 5 moves away from the compaction hammer 1 under the action of the second spring 802. Thus, the top of the limit baffle 5 abuts against the second baffle, and the limit baffle 5 switches from the state of being stuck in the card slot 101 to the state of disengaging from the card slot 101; as Figure 9 shown, when the slider 4 abuts against the bottom plate 11, under the action of the first baffle slope 7011, it can push the limit baffle 5 to move toward the side close to the compaction hammer 1. When the top of the limit baffle 5 disengages from the second baffle, the second baffle rotates under the action of the first spring 704 and abuts against the side of the limit baffle 5 away from the compaction hammer 1. Thus, the side of the limit baffle 5 close to the compaction hammer 1 is stuck in the card slot 101, and the side of the limit baffle 5 away from the compaction hammer 1 is abutted by the second baffle. The limit baffle 5 switches from the state of disengaging from the card slot 101 to the state of being stuck in the card slot 101.

[0037] Specifically, the movement mode of the compaction hammer 1 is as follows: the limit baffle 5 is clamped in the card slot 101, and the compaction hammer 1 moves upward as the slider 4 moves upward. When the slider 4 abuts against the positioning baffle 3, the limit baffle 5 disengages from the card slot 101. At this time, the compaction hammer 1 falls freely, and the slider 4 moves downward under the drive of the drive mechanism 9. When the slider 4 abuts against the bottom plate 11, the limit baffle 5 is clamped in the card slot 101 again, and the compaction hammer 1 moves upward as the slider 4 moves upward (that is, at the lowest point, the limit baffle 5 is clamped in the card slot 101, the slider 4 drives the compaction hammer 1 to move upward, at the highest point, the limit baffle 5 disengages from the card slot 101, and the downward movement of the slider 4 does not interfere with the downward movement of the compaction hammer 1).

[0038] In this embodiment, it further includes: a driving mechanism 9, and the driving mechanism 9 includes: a first motor 901, a first gear 902, a second gear 903 and a belt 904. The output end of the first motor 901 is connected to the first gear 902. Both the first gear 902 and the second gear 903 are engaged with the belt 904. The slider 4 is connected to the belt 904. Thus, the up-and-down movement of the slider 4 can be controlled to implement the compaction test of the specimen.

[0039] Specifically, start the first motor 901, drive the first gear 902 to rotate through the first motor 901, and with the cooperation of the second gear 903, make the belt 904 rotate to achieve the up-and-down movement of the slider 4.

[0040] In this embodiment, it further includes: a box body 10. Inside the box body 10, a bottom plate 11 and a top plate 12 are provided. The upper and lower ends of the first sliding rod 2 are respectively connected to the top plate 12 and the bottom plate 11. The first motor 901 is connected to the box body 10. The first stop block 701 is connected to the bottom plate 11. The second gear 903 is rotatably connected to the bottom plate 11. The first gear 902 is rotatably connected to the top plate 12. Outside the box body 10, a first box door 13 and a second box door 14 are provided. The first box door 13 and the second box door 14 are connected by a buckle 15.

[0041] In this embodiment, a plurality of guide rods 102 are provided on the outer side of the compaction hammer 1. The upper and lower ends of the guide rods 102 are respectively connected to the top plate 12 and the bottom plate 11. Thus, the guide rods 102 can guide the compaction hammer 1 to ensure that the compaction hammer 1 can only move up and down along its axial direction without deviation.

[0042] In this embodiment, it further includes: a base 16. The box body 10 is connected to the base 16. A compaction barrel 17 is provided on the base 16 and below the box body 10. Thus, the compaction barrel 17 is used to hold the specimen to be subjected to the compaction test.

[0043] Specifically, the connection method between the base 16 and the compaction barrel 17 is a rotational connection, that is, it is connected by a second motor (not shown in the figure) or other rotational mechanisms. During the compaction test, the compaction barrel 17 will rotate with the up-and-down movement of the compaction hammer 1 to perform the compaction test on the specimens at different positions in the compaction barrel 17.

[0044] The working process of the compactor of the present utility model is as follows: First, according to the compaction requirements of the specimen to be compacted, select the light compaction test or the heavy compaction test, and open the first box door 13 and the second box door 14. If the light compaction test is selected, install the positioning baffle 3 in the first installation hole 201. If the heavy compaction test is selected, install the positioning baffle 3 in the second installation hole 202. After the positioning baffle 3 is installed, close the first box door 13 and the second box door 14; then, pour the specimen into the compaction bucket 17; finally, start the first motor 901 and the second motor, control the compaction hammer 1 to perform reciprocating free-fall motion through the first motor 901, and control the compaction bucket 17 to rotate through the second motor, so as to realize the compaction test of the specimen.

[0045] In summary, during the switching process between the light compaction test and the heavy compaction test of the present utility model, the installation position of the positioning baffle 3 is adjusted by inserting and removing the pin 301 up and down. Compared with the installation and disassembly method of screwing bolts in a narrow space, this method has a simple structure and is easy to operate, and can realize the rapid installation and disassembly of the positioning baffle 3 to adjust the drop height of the compaction hammer 1, thereby improving the switching efficiency between the light compaction test and the heavy compaction test, and further improving the efficiency of the specimen compaction test.

[0046] The above is based on the ideal embodiments of the present utility model as an inspiration. Through the above description, relevant staff can completely make various changes and modifications within the scope not deviating from the technical idea of this utility model. The technical scope of this utility model is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A compaction instrument with convenient adjustment of drop hammer height, characterized in that: include: A compacting hammer (1), wherein a slot (101) is provided on the outer peripheral surface of the compacting hammer (1); A first sliding rod (2), the first sliding rod (2) being provided with a first mounting hole (201) and a second mounting hole (202), the second mounting hole (202) being located above the first mounting hole (201); a positioning baffle (3), the positioning baffle (3) passing through the first sliding bar (2), the positioning baffle (3) being provided with a latch (301), the positioning baffle (3) being provided with a limiting hole (302), a pull ring (303) being provided at the top of the latch (301), the latch (301) being inserted into the limiting hole (302) and abutting against the first sliding bar (2); A slider (4), the slider (4) passes through the first slider (2) and is slidably connected to the first slider (2); A limit baffle (5), the limit baffle (5) is connected to the slider (4) through an adjustment mechanism (6), and can move toward a side close to the hammer (1) or away from the hammer (1); when the limit baffle (5) is inserted into the slot (101), the slider (4) can drive the hammer (1) to move; when the limit baffle (5) is separated from the slot (101), the hammer (1) can fall freely; Wherein: when the positioning baffle (3) is inserted into the first mounting hole (201), the compaction hammer (1) is used for a light compaction test; when the positioning baffle (3) is inserted into the second mounting hole (202), the compaction hammer (1) is used for a heavy compaction test.

2. The compaction instrument with convenient adjustment of drop hammer height according to claim 1, characterized in that: The positioning baffle (3) is further provided with a connecting block (304), the connecting block (304) passes through the first sliding rod (2), and the limiting hole (302) is opened on the connecting block (304) and is located on a side of the first sliding rod (2) away from the positioning baffle (3); Wherein: when the connecting block (304) is inserted into the first mounting hole (201) and the second mounting hole (202), the latch pin (301) is located on the side of the first slide bar (2) away from the positioning baffle (3), and the side surface of the latch pin (301) close to the positioning baffle (3) abuts against the first slide bar (2).

3. The compaction instrument with convenient adjustment of drop hammer height according to claim 1, characterized in that: The regulating mechanism (6) comprises: An adjusting portion (7) and a sliding portion (8), wherein the adjusting portion (7) abuts against the position limiting baffle (5), and the position limiting baffle (5) is slidably mounted on the sliding block (4) via the sliding portion (8).

4. The compaction instrument with convenient adjustment of drop hammer height according to claim 3, characterized in that: The adjusting unit (7) comprises: A first stopper (701), the first stopper (701) being located at the bottom of the first sliding rod (2), and a slope (7011) being provided on one side of the first stopper (701); The adjustment unit (7) further comprises: A second stopper (702), a first support rod (703), a first spring (704) and a second support rod (705), wherein the second stopper (702) is rotatably connected to the slider (4), one end of the first support rod (703) is in contact with the second stopper (702), the other end of the first support rod (703) is inserted into the slider (4) and is slidably connected to the slider (4), the second support rod (705) passes through the slider (4) and is slidably connected to the slider (4), the second support rod (705) is in contact with the second stopper (702), the first spring (704) is sleeved on the first support rod (703), and the two ends of the first spring (704) are respectively connected to the second stopper (702) and the slider (4).

5. The compaction instrument with convenient adjustment of drop hammer height according to claim 3, characterized in that: The sliding part (8) comprises: A second sliding rod (801) and a second spring (802), one end of the second sliding rod (801) is connected to the limit baffle (5), the other end of the second sliding rod (801) is inserted into the slider (4) and is slidably connected to the slider (4), the second spring (802) is sleeved on the second sliding rod (801), and the two ends of the second sliding rod (801) are respectively connected to the slider (4) and the limit baffle (5).

6. The compaction instrument with convenient adjustment of drop hammer height according to claim 4, characterized in that: Also includes: A driving mechanism (9), wherein the driving mechanism (9) comprises: A first motor (901), a first gear (902), a second gear (903) and a belt (904), wherein the output end of the first motor (901) is connected to the first gear (902), the first gear (902) and the second gear (903) are both meshed with the belt (904), and the slider (4) is connected to the belt (904).

7. The compaction instrument with convenient adjustment of drop hammer height according to claim 6, characterized in that: Also includes: A box body (10), wherein a bottom plate (11) and a top plate (12) are arranged inside the box body (10), the upper and lower ends of the first sliding rod (2) are respectively connected to the top plate (12) and the bottom plate (11), the first motor (901) is connected to the box body (10), the first stopper (701) is connected to the bottom plate (11), the second gear (903) is rotationally connected to the bottom plate (11), and the first gear (902) is rotationally connected to the top plate (12).

8. The compaction instrument with convenient adjustment of drop weight height according to claim 7, characterized in that: A first door (13) and a second door (14) are arranged outside the box body (10); the first door (13) and the second door (14) are connected via a snap-fit ​​component (15).

9. The compaction instrument with convenient adjustment of drop weight height according to claim 7, characterized in that: A plurality of guide rods (102) are arranged on the outer side of the compacting hammer (1), and the upper and lower ends of the guide rods (102) are respectively connected to the top plate (12) and the bottom plate (11).

10. The compaction instrument with convenient adjustment of drop weight height according to claim 7, characterized in that: Also includes: A base (16) is provided, the box body (10) is connected to the base (16), and a compacting barrel (17) is provided on the base (16) and below the box body (10).