Battering ram

Abstract

The utility model relates to a battering ram which comprises an engine air cylinder and further comprises an outer cylinder sleeve, the outer cylinder sleeve is arranged outside the engine air cylinder and connected with the engine air cylinder in a sealing mode through a sealing ring, a maintenance opening is formed in the bottom of the front end of the outer cylinder sleeve, and a maintenance assembly is arranged in the maintenance opening. The outer cylinder connecting assembly is arranged below the outer cylinder sleeve; the inner cylinder sleeve is arranged below the outer cylinder sleeve, and a limiting opening is formed in the upper portion of the front end of the inner cylinder sleeve. The inner cylinder connecting assembly is arranged in the inner cylinder sleeve and used for connecting the outer cylinder sleeve and the inner cylinder sleeve; the tamping column is connected into the inner cylinder sleeve in a sliding manner; and the tamping seat is fixedly connected to the bottom end of the tamping column. The impact rammer has the advantages that lubricating grease is injected through the maintenance assembly, maintenance steps of the impact rammer can be reduced, meanwhile, a corrugated pipe on a traditional impact rammer is removed, the size of the impact rammer is reduced, and the impact rammer can be used on occasions and is convenient to carry.

Description

Technical Field

[0001] The utility model relates to the technical field of rammers, in particular to an impact rammer. Background Art

[0002] A rammer is a construction device that transfers compacting force to the ground through mechanical or hydraulic transmission to achieve compaction. Due to its compact size, light weight, high compaction capacity, and high production efficiency, it is widely used in foundation projects such as roads, railways, bridges, docks, airports, dams, and levees. It is used for ground treatment, cushion reinforcement, surface rigidity enhancement, and settlement control. Treating foundations and cushions with rammers improves soil bearing capacity and stability, reduces settlement and deformation, and ensures the safety and durability of projects.

[0003] In existing technologies, rammers are often equipped with bellows, which typically serve as a telescopic tube or protective sleeve. They protect the moving parts inside the rammer from external environmental influences, such as preventing the ingress of dust and debris, while also reducing the direct impact of vibration on internal parts, thereby extending the service life of the equipment. However, rammers equipped with bellows have the following disadvantages: first, the bellows are relatively large, which results in a larger overall size for the equipment, making it difficult to meet the compaction requirements of narrow trenches, corners, sewer pipes, around utility poles, and other small areas; second, after long-term use, the bellows may gradually wear out due to friction and vibration, especially if frequently exposed to harsh environments, such as dusty work sites. Therefore, regular maintenance is required, which requires dismantling the entire equipment and replacing the bellows. This entire process is time-consuming and labor-intensive, making it very inconvenient.

[0004] In view of this, it is necessary to improve the above defects. Utility Model Content

[0005] The technical problem to be solved by the utility model is to overcome the above-mentioned defects and provide an impact rammer.

[0006] In order to solve the above technical problems, the technical solutions provided by the present invention are as follows:

[0007] A rammer, comprising an engine cylinder, and further comprising:

[0008] The outer cylinder sleeve is arranged outside the engine cylinder and is sealed by a sealing ring. The front bottom of the outer cylinder sleeve is provided with a maintenance port, and a maintenance component is provided in the maintenance port;

[0009] An outer cylinder connecting assembly, the outer cylinder connecting assembly being arranged below the outer cylinder sleeve;

[0010] An inner cylinder sleeve, which is arranged below the outer cylinder sleeve and has a limit opening at the upper front end thereof;

[0011] An inner cylinder connecting assembly, the inner cylinder connecting assembly being arranged in the inner cylinder sleeve and used for connecting the outer cylinder sleeve and the inner cylinder sleeve;

[0012] A ramming column, wherein the ramming column is fixedly connected to the inner cylinder sleeve;

[0013] A ramming seat is fixedly connected to the bottom end of the ramming column.

[0014] As an improvement, the outer cylinder connection assembly includes an outer cylinder connection sleeve, which is arranged at the bottom end of the outer cylinder sleeve. The outer cylinder connection sleeve and the bottom end of the outer cylinder sleeve are connected to each other by providing inner and outer layers of bearing shells.

[0015] As an improvement, a sealing ring is provided between the outer cylinder connecting sleeve and the outer bearing shell for sealing.

[0016] As an improvement, the inner cylinder sleeve passes through the outer cylinder connecting sleeve and is slidably connected to the outer cylinder connecting sleeve and the inner part of the outer cylinder sleeve. The maintenance component is provided with a bearing glaze plate, a rubber ring, a guide block, an oil nozzle, a fastener and a screw for tightening the fastener from the inside to the outside.

[0017] The bearing glaze plate is slidably connected to the limit opening, the shape of the guide block fits the maintenance opening and is sealed by a rubber ring, the oil nozzle is arranged in the middle of the guide block, and its rear end passes through and is fixedly connected to the bearing glaze plate and the guide block, the fastener fits tightly to the guide block and is tightened to the maintenance opening by screws.

[0018] As an improvement, the inner cylinder connection assembly includes a second spring arranged on the inner bottom wall of the inner cylinder sleeve, a polyurethane column is arranged inside the second spring, the top of the polyurethane column is fixedly connected to a middle splint, the top of the middle splint is fixedly connected to a center shaft, the outer sleeve of the center shaft is provided with a polyurethane tube, the outer sleeve of the polyurethane tube is provided with a first spring, the top of the center shaft is provided with an inner cylinder sleeve cap, the top of the inner cylinder sleeve cap is provided with a center shaft nut, and the center shaft nut and the center shaft are connected to each other by a cylindrical pin.

[0019] As an improvement, the top and bottom ends of the spring 2 are fixedly connected to the middle clamping plate and the bottom wall of the inner cylinder sleeve respectively, and the top and bottom ends of the spring 1 are fixedly connected to the inner cylinder sleeve cap and the middle clamping plate respectively.

[0020] As an improvement, the center shaft nut is connected to the spark plug of the engine cylinder.

[0021] As an improvement, a ventilation hole is provided on the outer cylinder connecting sleeve.

[0022] As an improvement, a handle is provided on one side of the outer cylinder sleeve.

[0023] Compared with traditional technology, the advantages of the present invention are: the present invention removes the bellows and replaces the bellows with components such as an outer cylinder sleeve, an outer cylinder connecting assembly, an inner cylinder sleeve, and an inner cylinder connecting assembly, thereby further reducing the size of the equipment and making it suitable for compaction operations in narrow spaces. At the same time, through the maintenance assembly, grease can be directly injected into the interior of the equipment, reducing the maintenance steps and allowing maintenance to be completed without disassembling the equipment, thereby improving maintenance efficiency and making it easier to use for work. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a three-dimensional exploded view of the utility model;

[0025] As shown in the figure: 1. Outer cylinder sleeve; 2. Maintenance port; 3. Maintenance assembly; 4. Outer cylinder connection assembly; 5. Inner cylinder sleeve; 6. Limit port; 7. Inner cylinder connection assembly; 8. Rammer column; 9. Rammer seat; 10. Outer cylinder connection sleeve; 11. Bearing; 12. Handle; 13. Bearing glaze plate; 14. Rubber ring; 15. Guide block; 16. Oil nozzle; 17. Fastener; 18. Spring 2; 19. Polyurethane column; 20. Middle splint; 21. Center shaft; 22. Polyurethane tube; 23. Spring 1; 24. Inner cylinder sleeve cap; 25. Center shaft nut; 26. Cylindrical pin; 27. Air vent. DETAILED DESCRIPTION

[0026] Exemplary embodiments will be described in detail herein, examples of which are illustrated in the accompanying drawings. In the following description, when referring to the drawings, identical numerals in different figures represent identical or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments are not intended to represent all embodiments consistent with the present disclosure. Rather, they are merely examples of devices consistent with certain aspects of the present disclosure, as detailed in the appended claims.

[0027] The following is a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0028] Please refer to the instruction manual Figure 1The utility model discloses a rammer, which mainly includes an engine cylinder already existing in the prior art, as well as an outer cylinder sleeve 1, an outer cylinder connecting assembly 4, an inner cylinder sleeve 5, an inner cylinder connecting assembly 7, a rammer column 8 and a rammer seat 9. The outer cylinder sleeve 1 is provided with a handle 12 on one side. The outer cylinder sleeve 1 is provided outside the engine cylinder and is sealed by a sealing ring. The inner cylinder sleeve 5 is provided below the outer cylinder sleeve 1. The outer cylinder connecting assembly 4 is provided below the outer cylinder sleeve 1 and wraps around the inner cylinder sleeve 5.

[0029] Specifically, the outer cylinder connection assembly 4 includes an outer cylinder connection sleeve 10, which is arranged at the bottom end of the outer cylinder sleeve 1. The outer cylinder connection sleeve 10 and the bottom end of the outer cylinder sleeve 1 are connected to each other by providing an inner and outer layer of bearings 11. The outer cylinder connection sleeve 10 and the outer layer of bearings 11 are sealed by providing a sealing ring. The inner cylinder sleeve 5 passes through the outer cylinder connection sleeve 10 and is slidably connected to the inner part of the outer cylinder connection sleeve 10 and the outer cylinder sleeve 1. The inner cylinder sleeve 5 is tightly fitted relative to the side walls of the outer cylinder sleeve 1 and the outer cylinder connection sleeve 10. Subsequently, grease is injected into the side walls of the above-mentioned assembly to achieve lubrication and sealing. This allows the inner cylinder sleeve 5 included therein to slide up and down in the outer cylinder connection sleeve 10, and the outer cylinder connection sleeve 10 can change its relative position between the bearings 11 and the outer cylinder sleeve 1, thereby changing its angle and moving it to different places.

[0030] The inner cylinder connection assembly 7 is provided in the inner cylinder sleeve 5 and is used to connect the engine cylinder inside the outer cylinder sleeve 1 and the inner cylinder sleeve 5. Specifically, the inner cylinder connection assembly 7 includes a spring 2 18 provided on the inner bottom wall of the inner cylinder sleeve 5. A polyurethane column 19 is provided inside the spring 2 18. The top end of the polyurethane column 19 is fixedly connected to a middle splint 20. The top end of the middle splint 20 is fixedly connected to a center shaft 21. The outer portion of the center shaft 21 is provided with a polyurethane tube 22. The outer portion of the polyurethane tube 22 is provided with a spring 1 23. The top end of the center shaft 21 is provided with an inner cylinder sleeve cap 24. The top end of the inner cylinder sleeve cap 24 is provided with a center shaft nut 25. The center shaft nut 25 and the center shaft 21 are connected to each other via a cylindrical pin 26. The top and bottom ends of the spring 2 18 are fixedly connected to the middle splint 20 and the bottom wall of the inner cylinder sleeve 5, respectively. The top and bottom ends of the spring 1 23 are fixedly connected to the inner cylinder sleeve cap 24 and the middle splint 20, respectively. The central axis nut 25 is connected to the ignition part of the engine cylinder. And above-mentioned each assembly is all in the inner cylinder sleeve 5, and ramming post 8 is fixedly connected in the inner cylinder sleeve 5, and ramming seat 9 is fixedly connected to ramming post 8 bottom ends.

[0031] Therefore, when the engine cylinder ignites, its explosive impact force will be transmitted to the central shaft nut 25 through the outlet of the cylinder, driving the entire inner cylinder connecting assembly 7 to move downward explosively, and then driving the inner cylinder sleeve 5 to move, causing it to slide in the outer cylinder connecting sleeve 10 and the outer cylinder sleeve 1. Since the ramming seat 9 contacts the bottom surface at this time, the impact force will act in the opposite direction on the device body, causing the device body to jump up. There is an air vent 27 on the outer cylinder connecting sleeve 10. Therefore, when the inner cylinder sleeve 5 slides to the air vent 27 of the outer cylinder connecting sleeve 10, external gas enters it, and then balance is achieved. The entire device loses the impact force and descends under the action of gravity. Since the ramming seat 9 has a large mass, it can play a tamping role when it hits the ground. When it hits the ground, it is shock-absorbing and buffered by the spring 1 23 and spring 2 18 in the above-mentioned inner cylinder connecting assembly 7 to protect the device body. The polyurethane column 19 and polyurethane tube 22 therein have good wear resistance, which makes the service life of the device longer.

[0032] During the long-term use of the equipment, the above-mentioned grease will dry up and need to be refilled and maintained. Therefore, in order to make the above-mentioned maintenance problems easier to solve, the utility model provides a maintenance port 2 at the bottom of the front end of the outer cylinder sleeve 1, and a maintenance component 3 is provided in the maintenance port 2; specifically, the maintenance component 3 is provided with a bearing glaze plate 13, a rubber ring 14, a guide block 15, an oil nozzle 16, a fastener 17 and a screw for tightening them in sequence from the inside to the outside; the shape of the guide block 15 fits the maintenance port 2 and is sealed by the rubber ring 14, the oil nozzle 16 is provided in the middle of the guide block 15, and its rear end passes through and is fixedly connected to the bearing glaze plate 13 and the guide block 15, the fastener 17 fits tightly against the guide block 15 and is tightened to the maintenance port 2 by screws. Therefore, during use, grease is added through the grease nipple 16. The grease flows through the grease nipple 16, over the guide block 15 and the bearing glaze plate 13, and ultimately reaches the connecting gap between the inner cylinder liner 5, the outer cylinder connecting sleeve 10, and the outer cylinder liner 1, achieving a lubricating effect. The inner cylinder liner 5 has a limit opening 6 on its upper portion, and the bearing glaze plate 13 is slidably connected to the limit opening 6. This makes the movement of the inner cylinder liner 5 more stable and plays a directional role.

[0033] It should also be noted that the electrical components appearing in this article are all connected to an external main controller and 220V AC power, and the main controller can be a conventional known device that controls a computer, etc. The specific implementation method of this disclosure omits the detailed description of known functions and known components. To ensure the compatibility of the equipment, the operating methods used are consistent with the parameters of marketed equipment.

[0034] The above description of the present invention and its embodiments is non-limiting. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if a person skilled in the art is inspired by the above, and does not deviate from the purpose of the present invention, without inventive design, a structure and embodiment similar to the technical solution should fall within the scope of protection of the present invention.

Claims

1. A rammer comprising an engine cylinder, characterized in that: Also includes: An outer cylinder sleeve (1), the outer cylinder sleeve (1) being arranged outside the engine cylinder and being sealed by a sealing ring, a maintenance opening (2) being provided at the bottom of the front end of the outer cylinder sleeve (1), and a maintenance component (3) being provided in the maintenance opening (2); An outer cylinder connection assembly (4), the outer cylinder connection assembly (4) being arranged below the outer cylinder sleeve (1); An inner cylinder sleeve (5), the inner cylinder sleeve (5) being arranged below the outer cylinder sleeve (1), and having a limiting opening (6) formed at an upper front end thereof; An inner cylinder connection assembly (7), the inner cylinder connection assembly (7) being arranged in the inner cylinder liner (5) and being used to connect the engine cylinder and the inner cylinder liner (5); A tamping column (8), wherein the tamping column (8) is fixedly connected to the inner cylinder sleeve (5); A ramming seat (9), wherein the ramming seat (9) is fixedly connected to the bottom end of the ramming column (8).

2. The rammer according to claim 1, characterized in that: The outer cylinder connection assembly (4) comprises an outer cylinder connection sleeve (10), the outer cylinder connection sleeve (10) being arranged at the bottom end of the outer cylinder sleeve (1), and the outer cylinder connection sleeve (10) and the bottom end of the outer cylinder sleeve (1) being connected to each other by being provided with inner and outer bearing bushings (11).

3. The rammer according to claim 2, characterized in that: The outer cylinder connecting sleeve (10) and the outer bearing bush (11) are sealed by providing a sealing ring.

4. The rammer according to claim 2, wherein: The inner cylinder sleeve (5) passes through the outer cylinder connecting sleeve (10) and is slidably connected to the outer cylinder connecting sleeve (10) and the inner portion of the outer cylinder sleeve (1); the maintenance component (3) is provided with a bearing glaze plate (13), a rubber ring (14), a guide block (15), an oil nozzle (16), a fastener (17) and screws for tightening the fasteners from the inside out; The bearing glaze plate (13) is slidably connected to the limiting opening (6); the shape of the guide block (15) fits the maintenance opening (2) and is sealed by the rubber ring (14); the oil nozzle (16) is arranged in the middle of the guide block (15); the rear end thereof passes through and is fixedly connected to the bearing glaze plate (13) and the guide block (15); the fastener (17) fits tightly to the guide block (15) and is tightened to the maintenance opening (2) by a screw.

5. The rammer according to claim 1, characterized in that: The inner cylinder connection assembly (7) includes a spring 2 (18) arranged on the inner bottom wall of the inner cylinder sleeve (5), a polyurethane column (19) is arranged inside the spring 2 (18), the top end of the polyurethane column (19) is fixedly connected to a middle splint (20), the top end of the middle splint (20) is fixedly connected to a center shaft (21), the outer sleeve of the center shaft (21) is provided with a polyurethane tube (22), the outer sleeve of the polyurethane tube (22) is provided with a spring 1 (23), the top end of the center shaft (21) is provided with an inner cylinder sleeve cap (24), the top end of the inner cylinder sleeve cap (24) is provided with a center shaft nut (25), and the center shaft nut (25) and the center shaft (21) are connected to each other by a cylindrical pin (26).

6. The rammer according to claim 5, characterized in that: The top and bottom ends of the spring 2 (18) are fixedly connected to the middle clamping plate (20) and the bottom wall of the inner cylinder sleeve (5), respectively. The top and bottom ends of the spring 1 (23) are fixedly connected to the inner cylinder sleeve cap (24) and the middle clamping plate (20), respectively.

7. The rammer according to claim 5, characterized in that: The central shaft nut (25) is connected to the spark plug of the engine cylinder.

8. The rammer according to claim 2, wherein: The outer cylinder connecting sleeve (10) is provided with a vent hole (27).

9. The rammer according to claim 1, characterized in that: A handle (12) is provided on one side of the outer cylinder sleeve (1).

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