Charging hopper of gravel pile driver
By introducing a hydraulic control system with a cover and discharge plate into the hopper of the crushed stone pile driver, the problem of crushed stone leakage during hoisting was solved, and the accurate delivery of materials and the stability of construction progress were achieved.
Patent Information
- Application Number
- CN202520425813.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-12
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-03-12
AI Technical Summary
During the construction of crushed stone piles, the hopper is prone to leakage of crushed stone or gravel during hoisting, which affects the construction progress and material supply.
The design incorporates a cover door and a discharge plate. The opening and closing of the inlet and outlet are controlled by a hydraulic cylinder-driven spur gear and gear transmission system, ensuring that the material does not leak during hoisting. The material conveying is precisely controlled through the lifting rings and hydraulic system.
This effectively prevented the leakage of crushed stone during hoisting, ensured a complete supply of materials, and improved construction efficiency and the uniformity of the pile body.
Smart Images
Figure CN223836310U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of stone pile driving machines; specifically, this utility model relates to a loading hopper for a stone pile driving machine. Background Technology
[0002] The hopper of a crushed stone pile driver is a piece of equipment used in the construction of crushed stone piles. Its main function is to provide crushed stone materials to the pile driver so that the pile body can be formed during the pile foundation construction. This technology is widely used in foundation treatment, soft soil foundation reinforcement, infrastructure construction and other fields. Especially in high-rise buildings, large bridges and underground engineering projects, crushed stone pile drivers are usually equipped with a hopper to transport crushed stone, gravel and other materials into the pile hole to form the pile body.
[0003] However, in actual use, the construction of crushed stone piles requires a large amount of crushed stone material. The hopper can ensure that crushed stone, gravel and other materials can be continuously supplied to the pile driver to transport the crushed stone, gravel and other materials into the pile hole to form the pile body. When the construction workers load a large amount of crushed stone into the hopper, before the discharge port of the hopper is aligned with the feed hopper of the pile body during the hoisting process, some crushed stone or gravel falls off prematurely during the hoisting process and fails to enter the pile body, resulting in insufficient material supply and affecting the construction progress. Utility Model Content
[0004] In view of this, the present invention provides a hopper for a crushed stone pile driving machine, thereby solving or at least alleviating the above-mentioned problems existing in the prior art.
[0005] To achieve the aforementioned objectives, this utility model provides a hopper for a crushed stone pile driving machine, comprising a hopper assembly, a cover, and a discharge plate; the hopper assembly includes a hopper body, with an inlet at the top and an outlet at the bottom; the cover is rotatably mounted on the top of the hopper body and can cover the inlet; the discharge plate is rotatably mounted inside the outlet and can cover the outlet; and lifting rings are installed on both sides of the hopper body.
[0006] In the aforementioned hopper for a crushed stone pile driver, optionally, a shell is fixedly installed on the bottom outer wall of the hopper body. A movable groove is provided inside the shell, and a sliding rod is slidably connected inside the movable groove. A straight tooth is fixedly installed at one end of the sliding rod, and a gear is engaged on the outer teeth of the straight tooth. A rotating rod is fixedly installed at one end of the gear. The rotating rod passes through the discharge port of the hopper body, and the outer side of the rotating rod is fixedly installed with a discharge plate. A bearing is installed at one end of the rotating rod, and the bearing is fixedly installed inside the hopper body. A first guide post is fixedly installed at one end of the straight tooth, and a first hydraulic cylinder is installed at one end of the first guide post. The first hydraulic cylinder is fixedly installed on the shell.
[0007] In the aforementioned hopper for a crushed stone pile driver, optionally, two sets of lifting rings are provided, and the two sets of lifting rings are respectively fixedly installed on the outer walls of both ends of the hopper body on the same side. The end of the cover is square, and the cover can rotate upward. A rotating rod is rotatably installed inside the cover, and the rotating rod is installed inside the feed inlet. A first hinge is rotatably installed on the outer walls of both ends of the cover.
[0008] In the hopper of a crushed stone pile driver as described above, optionally, a connecting rod is rotatably mounted on the first hinge, and a second hinge is rotatably mounted on the end of the connecting rod away from the first hinge. A sliding block is fixedly mounted on the second hinge. Sliding guide plates are fixedly mounted on the outer walls of both sides of the hopper body. Guide grooves are formed on the sliding guide plates. The sliding block is slidably mounted inside the guide grooves. A second hydraulic cylinder is provided at the end of the sliding guide plate away from the cover door. The second hydraulic cylinder is fixedly mounted on the outer wall of the hopper body. A second guide post is fixedly mounted on the output end of the second hydraulic cylinder. The second guide post penetrates the interior of the sliding guide plate and is fixedly connected to the sliding block.
[0009] In the hopper of a crushed stone pile driving machine as described above, optionally, the lifting ring includes a first lifting ring and a second lifting ring. The first lifting ring is provided in two sets, and the two sets of the first lifting ring are respectively fixedly installed on both sides of the outer wall of one side of the hopper body. The second lifting ring is provided in two sets, and the two sets of the second lifting ring are respectively slidably installed on both sides of the outer wall of the other side of the hopper body. The end of the cover door is round, and the cover door can rotate toward the second lifting ring. Rotating rods are provided on both sides of the cover door, and the center of the rotating rods is consistent with the center of the end of the cover door. The rotating rods are fixedly installed on the outer wall of the hopper body, and moving heads are fixedly installed at both ends of the cover door.
[0010] In the aforementioned hopper of a crushed stone pile driver, optionally, a movable rod is slidably installed on the side of the hopper body, and a connecting rod is fixedly installed at both ends of the movable rod. The end of the connecting rod faces the cover door and is fixedly installed with a movable plate. A strip groove is opened on the movable plate, and the movable head is slidably installed in the strip groove. An inclined plate is fixedly installed at both ends of the movable rod, and the inclined surface of the inclined plate contacts the second lifting ring.
[0011] In the hopper of the crushed stone pile driving machine described above, optionally, deflection rods are provided on both sides of the moving rod. The deflection rods are rotatably installed on the side of the hopper body. Extension rods are fixedly installed at both ends of the deflection rods. The extension rod near the second lifting ring is in contact with the second lifting ring, and the extension rod near the cover door is able to contact the edge of the cover door.
[0012] In the aforementioned hopper for a crushed stone pile driver, optionally, a connecting plate is fixedly installed at one end of the connecting rod near the moving rod, a second hydraulic cylinder is fixedly installed on one side of the hopper body, a second guide post is fixedly installed at the output end of the second hydraulic cylinder, and the end of the second guide post away from the second hydraulic cylinder is fixedly connected to the connecting plate.
[0013] In the aforementioned hopper of a crushed stone pile driver, optionally, a contact rod is fixedly installed on the outer surface of the cover door, and inclined rods are fixedly installed at both ends of the contact rod. When the two second lifting rings move in opposite directions, the second lifting rings are located within the range of the inclined rods. When the two second lifting rings move relative to each other, the second lifting rings are located within the range of the contact rods.
[0014] This utility model discloses a hopper for a crushed stone pile driver. The opening and closing of the feed inlet is controlled by rotating the cover door, which controls the entry of crushed stone into the hopper body. Material can only enter the hopper smoothly when the feed inlet is fully open. When the cover door is closed, the feed inlet is isolated to prevent material leakage or waste. This also prevents the crushed stone inside the hopper body from leaking to the outside during hoisting or transportation, effectively avoiding crushed stone leakage or waste caused by the feed inlet not being fully closed. Attached Figure Description
[0015] The disclosure of this utility model will become more apparent with reference to the accompanying drawings. It should be understood that these drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings:
[0016] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of this utility model;
[0017] Figure 2 This is a schematic diagram of the hopper assembly structure according to Embodiment 1 of this utility model;
[0018] Figure 3 This is a schematic diagram of the connection structure between the hopper body and the lifting ring in Embodiment 1 of this utility model;
[0019] Figure 4 This is a schematic diagram of the connection structure of the outer shell, gears, spur gears and feeding plate in Embodiment 1 of this utility model;
[0020] Figure 5 This is a schematic diagram of the connection structure of the sliding rod, the first guide post, and the first hydraulic cylinder in Embodiment 1 of this utility model;
[0021] Figure 6 This is a schematic diagram of the movable groove and outer shell structure of Embodiment 1 of this utility model;
[0022] Figure 7 This is a schematic diagram of the connection structure of the cover, hinge, connecting rod, sliding block and sliding guide plate in Embodiment 1 of this utility model;
[0023] Figure 8 This is a structural schematic diagram of Embodiment 2 of the present invention;
[0024] Figure 9 This is a schematic diagram of the connection structure of the cover door, moving rod, inclined plate, moving plate and moving head in Embodiment 2 of this utility model.
[0025] Reference numerals: 200, hopper assembly; 201, hopper body; 202, feed inlet; 204, outer shell; 206, lifting ring; 2061, first lifting ring; 2062, second lifting ring; 207, gear; 208, discharge plate; 209, rotating rod; 210, spur gear; 211, first hydraulic cylinder; 212, first guide post; 213, sliding rod; 214, bearing; 215, moving groove; 300, first hinge; 301, rotating rod 302. Connecting rod; 303. Second hinge; 304. Sliding block; 305. Second guide post; 306. Second hydraulic cylinder; 307. Sliding guide plate; 308. Cover door; 309. Guide rail groove; 310. Moving head; 311. Moving rod; 312. Connecting rod; 313. Moving plate; 314. Strip groove; 315. Inclined plate; 316. Deflection rod; 317. Extension rod; 318. Connecting plate; 320. Contact rod; 321. Inclined rod. Detailed Implementation
[0026] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0027] like Figures 1 to 7 As shown in Embodiment 1, a hopper for a crushed stone pile driving machine includes a hopper assembly 200, a cover 308, and a discharge plate 208. The hopper assembly 200 includes a hopper body 201, with an inlet 202 at the top and an outlet at the bottom. The cover 308 is rotatably mounted on the top of the hopper body 201 and can cover the inlet 202. The discharge plate 208 is rotatably mounted inside the outlet and can cover the outlet. Lifting rings 206 are installed on both sides of the hopper body 201.
[0028] A housing 204 is fixedly installed on the bottom outer wall of the hopper body 201. A movable groove 215 is provided inside the housing 204. A sliding rod 213 is slidably connected inside the movable groove 215. A straight tooth 210 is fixedly installed at one end of the sliding rod 213. A gear 207 is meshed with the outer teeth of the straight tooth 210. A rotating rod 209 is fixedly installed at one end of the gear 207. The rotating rod 209 passes through the discharge port of the hopper body 201. The outer side of the rotating rod 209 is fixedly installed with the discharge plate 208. A bearing 214 is installed at one end of the rotating rod 209. The bearing 214 is fixedly installed inside the hopper body 201. A first guide post 212 is fixedly installed at one end of the straight tooth 210. A first hydraulic cylinder 211 is installed at one end of the first guide post 212. The first hydraulic cylinder 211 is fixedly installed on the housing 204.
[0029] In actual use, crushed stone is loaded into the hopper body 201 through the feed inlet 202. The lifting ring 206 is used to lift and position the hopper assembly 200. When the hopper body 201 is lifted, the first hydraulic cylinder 211 drives the first guide column 212 to move, which in turn drives the spur gear 210 to move. One end of the spur gear 210 slides the rod 213 and moves inside the moving groove 215 of the outer shell 204. When the spur gear 210 moves, it further drives the transmission gear 207 to rotate. The rotation of the gear 207 drives the conveyor belt... The rotating rod 209 rotates with the discharge plate 208. The discharge plate 208 rotates inside the discharge port of the hopper body 201. When the discharge plate 208 is rotated open, the crushed stone is poured out from the discharge port of the hopper body 201 and further enters the pile body to prevent leakage when the crushed stone is lifted inside the hopper body 201. The hopper body 201 and the discharge plate 208 are made of high manganese steel containing % to % manganese, which has good wear resistance and high impact resistance. Under impact or wear, a hardened layer will form on the surface, thereby further improving wear resistance.
[0030] By using the spur gear 210, gear 207, sliding rod 213, and discharge plate 208, leakage of crushed stone from the inside of the hopper during lifting and transportation can be effectively prevented. Furthermore, the opening and closing of the discharge plate 208 can be precisely controlled, effectively controlling the waste of crushed stone. The opening and closing of the discharge plate 208 can be effectively controlled, thereby adjusting the amount of crushed stone discharged and avoiding uneven pile body or construction quality problems caused by uneven or excessive discharge.
[0031] Two sets of lifting rings 206 are provided. The two sets of lifting rings 206 are fixedly installed on the outer walls of both ends of the same side of the hopper body 201. The end of the cover door 308 is square. The cover door 308 can rotate upward. A rotating rod 301 is rotatably installed inside the cover door 308. The rotating rod 301 is installed inside the feed inlet 202. The outer walls of both ends of the cover door 308 are rotatably installed with first hinge members 300.
[0032] A connecting rod 302 is rotatably mounted on the first hinge 300. A second hinge 303 is rotatably mounted on the end of the connecting rod 302 away from the first hinge 300. A sliding block 304 is fixedly mounted on the second hinge 303. Sliding guide plates 307 are fixedly mounted on the outer walls of both sides of the hopper body 201. A guide groove 309 is provided on the sliding guide plate 307. The sliding block 304 is slidably mounted inside the guide groove 309. A second hydraulic cylinder 306 is provided on the end of the sliding guide plate 307 away from the cover door 308. The second hydraulic cylinder 306 is fixedly mounted on the outer wall of the hopper body 201. A second guide post 305 is fixedly mounted on the output end of the second hydraulic cylinder 306. The second guide post 305 penetrates the interior of the sliding guide plate 307 and is fixedly connected to the sliding block 304.
[0033] In actual use, the second hydraulic cylinder 306 is activated, pushing the second guide column 305 to move and causing the sliding block 304 to slide along the guide groove 309 in the sliding guide plate 307. The sliding drive linkage 302 of the sliding block 304 drives the cover door 308 to open or close. As the sliding block 304 moves, the linkage 302 drives the cover door 308 to rotate through the first hinge 300, gradually opening the feed port 202. When the cover door 308 rotates to the appropriate position, the feed port 202 opens, allowing materials such as crushed stone to be loaded into the hopper body 201. When the cover door is closed, the material is isolated to prevent leakage. The cover door 308 is usually made of wear-resistant steel such as NM and N2, which are steels used to withstand large friction and wear. They have very high hardness and wear resistance and are suitable for the wear environment when handling materials.
[0034] The opening and closing of the feed inlet 202 is controlled by rotating the cover 308, which controls the entry of crushed stone into the hopper body 201. Only when the feed inlet 202 is fully open can the material enter the hopper smoothly. When the cover 308 is closed, the feed inlet 202 is isolated to prevent material leakage or waste, and to prevent the crushed stone inside the hopper body 201 from leaking to the outside during hoisting or transportation.
[0035] The second hydraulic cylinder 306 is activated, pushing the second guide column 305 to move and causing the sliding block 304 to slide along the guide groove 309 in the sliding guide plate 307. The sliding drive linkage 302 of the sliding block 304 drives the cover door 308 to open or close. As the sliding block 304 moves, the linkage 302 drives the cover door 308 to rotate through the first hinge 300, gradually opening the feed inlet 202. When the cover door 308 rotates to the appropriate position, the feed inlet 202 opens, allowing materials such as crushed stone to be loaded into the hopper body 201. When the cover door is closed, the material is isolated to prevent leakage. Crushed stone is loaded into the hopper body 201 through the feed inlet 202. The lifting ring 206 is used to lift and position the hopper assembly 200, thereby loading the hopper. When the main body 201 is lifted, the first hydraulic cylinder 211 drives the first guide column 212 to move, which in turn drives the spur gear 210 to move. One end of the spur gear 210 slides the rod 213 and moves inside the moving groove 215 of the outer shell 204. When the spur gear 210 moves, the transmission gear 207 rotates. The rotation of the gear 207 drives the rotating rod 209 and the discharge plate 208 to rotate. The discharge plate 208 rotates inside the discharge port of the hopper main body 201. When the discharge plate 208 is rotated and opened, the crushed stone is poured out from the discharge port of the hopper main body 201 and further enters the pile body feed hopper to prevent leakage of crushed stone when it is lifted inside the hopper main body 201.
[0036] like Figures 8 to 9 As shown, in Embodiment 2, the lifting ring 206 includes a first lifting ring 2061 and a second lifting ring 2062. The first lifting ring 2061 is provided in two sets, and the two sets of first lifting rings 2061 are respectively fixedly installed on both sides of the outer wall of one side of the hopper body 201. The second lifting ring 2062 is provided in two sets, and the two sets of second lifting rings 2062 are respectively slidably installed on both sides of the outer wall of the other side of the hopper body 201. The end of the cover door 308 is round, and the cover door 308 can rotate toward the second lifting ring 2062. Rotating rods 301 are provided on both sides of the cover door 308. The center of the rotating rods 301 is consistent with the center of the end of the cover door 308. The rotating rods 301 are fixedly installed on the outer wall of the hopper body 201. Moving heads 310 are fixedly installed at both ends of the cover door 308.
[0037] When the moving head 310 rotates around the rotating rod 301, it can drive the cover door 308 to rotate around the rotating rod 301, so that the cover door 308 can be opened and the feed inlet 202 can be fully exposed, which facilitates the introduction of a large amount of crushed stone, and improves the filling efficiency of the support when the crushed stone is filled into the hopper body 201.
[0038] A movable rod 311 is slidably installed on the side of the hopper body 201. A connecting rod 312 is fixedly installed at both ends of the movable rod 311. The end of the connecting rod 312 faces the cover door 308 and is fixedly installed with a movable plate 313. A strip groove 314 is opened on the movable plate 313. The movable head 310 is slidably installed in the strip groove 314. An inclined plate 315 is fixedly installed at both ends of the movable rod 311. The inclined surface of the inclined plate 315 contacts the second lifting ring 2062.
[0039] When the moving rod 311 moves, it can drive the inclined plate 315 to move, so that the inclined surface of the inclined plate 315 is pressed against the second lifting ring 2062, and the second lifting rings 2062 on both sides can move in opposite directions. At the same time, when the moving rod 311 moves, it drives the connecting rod 312 to move, and the connecting rod 312 drives the moving plate 313 to move, so that the moving head 310 can slide in the strip groove 314, and drive the moving head 310 to rotate around the rotating rod 301 as the center.
[0040] When the second lifting ring 2062 moves in opposite directions, it facilitates the displacement of the wire rope by the second lifting ring 2062 and moves it to both sides of the hopper, solving the problem of inconvenience caused by the need for frequent disassembly and assembly of the wire rope hook in the existing technology.
[0041] Both sides of the moving rod 311 are provided with deflecting rods 316. The deflecting rods 316 are rotatably installed on the side of the hopper body 201. Both ends of the deflecting rods 316 are fixedly installed with extension rods 317. The extension rod 317 near the second lifting ring 2062 contacts the second lifting ring 2062, and the extension rod 317 near the cover door 308 can contact the edge of the cover door 308.
[0042] When the cover door 308 is closed, the edge of the cover door 308 can contact the extension rod 317 near one end of the cover door 308 and press down the extension rod 317, causing the extension rod 317 at the other end to deflect, so that the extension rod 317 near the second lifting ring 2062 moves towards the second lifting ring 2062, so that the second lifting ring 2062 can move relative to it and reset.
[0043] A connecting plate 318 is fixedly installed on one end of the connecting rod 312 near the moving rod 311. A second hydraulic cylinder 306 is fixedly installed on one side of the hopper body 201. A second guide post 305 is fixedly installed on the output end of the second hydraulic cylinder 306. The end of the second guide post 305 away from the second hydraulic cylinder 306 is fixedly connected to the connecting plate 318.
[0044] The second hydraulic cylinder 306 is activated, which drives the second guide column 305 to move. When the second guide column 305 moves, it can drive the connecting plate 318 to move. When the connecting plate 318 moves, it can drive the connecting rod 312 to move, so that the moving rod 311 can move.
[0045] A contact rod 320 is fixedly installed on the outer surface of the cover 308. Both ends of the contact rod 320 are fixedly installed with diagonal rods 321. When the two second lifting rings 2062 move in opposite directions, the second lifting rings 2062 are located within the range of the diagonal rods 321. When the two second lifting rings 2062 move relative to each other, the second lifting rings 2062 are located within the range of the contact rod 320.
[0046] When the second lifting ring 2062 moves backward, the cover door 308 is rotated, causing the cover door 308 to drive the contact rod 320 and the inclined rod 321 to rotate, and allowing the wire rope to contact the inclined rod 321. When the cover door 308 rotates, the inclined rod 321 pushes the wire rope to both sides of the hopper body 201, so that the cover door 308 is not blocked by the wire rope, and the discharge port can be fully exposed. After the cover door 308 is closed, the second lifting ring 2062 is pushed to the initial state by the extension rod 317, so that when the hopper body 201 is lifted, the wire rope can automatically return from the sides of the hopper body 201 to a state parallel to the hopper body 201 by gravity.
[0047] Compared to Embodiment 1, Embodiment 2 has the advantage of not requiring frequent disassembly of the two steel wire ropes located below during ground-based material loading operations.
[0048] The technical scope of this utility model is not limited to the contents of the above description. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the scope of this utility model.
Claims
1. A hopper for a crushed stone pile driving machine, characterized in that, The hopper assembly includes a hopper body (200), a cover (308), and a discharge plate (208). The hopper body (200) includes a hopper body (201), with a feed inlet (202) at the top and a discharge outlet at the bottom. The cover (308) is rotatably mounted on the top of the hopper body (201) and can cover the feed inlet (202). The discharge plate (208) is rotatably mounted inside the discharge outlet and can cover the discharge outlet. Lifting rings (206) are installed on both sides of the hopper body (201).
2. The hopper for a crushed stone pile driving machine as described in claim 1, characterized in that, A shell (204) is fixedly installed on the bottom outer wall of the hopper body (201). A movable groove (215) is provided inside the shell (204). A sliding rod (213) is slidably connected inside the movable groove (215). A straight tooth (210) is fixedly installed at one end of the sliding rod (213). A gear (207) meshes with the outer teeth of the straight tooth (210). A rotating rod (209) is fixedly installed at one end of the gear (207). The rotating rod (209) passes through... The hopper body (201) has a discharge port. The outer side of the rotating rod (209) is fixedly installed with the discharge plate (208). One end of the rotating rod (209) is equipped with a bearing (214). The bearing (214) is fixedly installed inside the hopper body (201). One end of the straight tooth (210) is fixedly installed with a first guide post (212). One end of the first guide post (212) is equipped with a first hydraulic cylinder (211). The first hydraulic cylinder (211) is fixedly installed on the outer shell (204).
3. The hopper for a crushed stone pile driving machine as described in claim 1, characterized in that, The lifting ring (206) is provided in two sets. The two sets of lifting rings (206) are respectively fixedly installed on the outer walls of both ends of the hopper body (201) on the same side. The end of the cover (308) is square. The cover (308) can rotate upward. A rotating rod (301) is rotatably installed inside the cover (308). The rotating rod (301) is installed inside the feed inlet (202). The outer walls of both ends of the cover (308) are rotatably installed with a first hinge (300).
4. The hopper for a crushed stone pile driving machine as described in claim 3, characterized in that, A connecting rod (302) is rotatably mounted on the first hinge (300). A second hinge (303) is rotatably mounted on the end of the connecting rod (302) away from the first hinge (300). A sliding block (304) is fixedly mounted on the second hinge (303). Sliding guide plates (307) are fixedly mounted on the outer walls of both sides of the hopper body (201). A guide groove (309) is provided on the sliding guide plate (307). The sliding block (304) is slidably mounted inside the guide groove (309). A second hydraulic cylinder (306) is provided on the end of the sliding guide plate (307) away from the cover door (308). The second hydraulic cylinder (306) is fixedly mounted on the outer wall of the hopper body (201). A second guide post (305) is fixedly mounted on the output end of the second hydraulic cylinder (306). The second guide post (305) penetrates the interior of the sliding guide plate (307) and is fixedly connected to the sliding block (304).
5. The hopper for a crushed stone pile driving machine as described in claim 1, characterized in that, The lifting ring (206) includes a first lifting ring (2061) and a second lifting ring (2062). The first lifting ring (2061) is provided in two sets, and the two sets of the first lifting ring (2061) are respectively fixedly installed on both sides of the outer wall of one side of the hopper body (201). The second lifting ring (2062) is provided in two sets, and the two sets of the second lifting ring (2062) are respectively slidably installed on both sides of the outer wall of the other side of the hopper body (201). The end of the cover door (308) is round, and the cover door (308) can rotate toward the second lifting ring (2062). Both sides of the cover door (308) are provided with rotating rods (301), and the center of the rotating rods (301) is consistent with the center of the end of the cover door (308). The rotating rods (301) are fixedly installed on the outer wall of the hopper body (201). Both ends of the cover door (308) are fixedly installed with moving heads (310).
6. The hopper for a crushed stone pile driving machine as described in claim 5, characterized in that, A movable rod (311) is slidably installed on the side of the hopper body (201). A connecting rod (312) is fixedly installed at both ends of the movable rod (311). The end of the connecting rod (312) faces the cover door (308) and is fixedly installed with a movable plate (313). A strip groove (314) is opened on the movable plate (313). The movable head (310) is slidably installed in the strip groove (314). An inclined plate (315) is fixedly installed at both ends of the movable rod (311). The inclined surface of the inclined plate (315) is in contact with the second lifting ring (2062).
7. The hopper for a crushed stone pile driving machine as described in claim 6, characterized in that, The moving rod (311) is provided with deflecting rods (316) on both sides. The deflecting rods (316) are rotatably installed on the side of the hopper body (201). Extension rods (317) are fixedly installed at both ends of the deflecting rods (316). The extension rod (317) near the second lifting ring (2062) is in contact with the second lifting ring (2062), and the extension rod (317) near the cover door (308) is able to contact the edge of the cover door (308).
8. The hopper for a crushed stone pile driving machine as described in claim 6, characterized in that, A connecting plate (318) is fixedly installed at one end of the connecting rod (312) near the moving rod (311). A second hydraulic cylinder (306) is fixedly installed on one side of the hopper body (201). A second guide post (305) is fixedly installed at the output end of the second hydraulic cylinder (306). The end of the second guide post (305) away from the second hydraulic cylinder (306) is fixedly connected to the connecting plate (318).
9. The hopper for a crushed stone pile driving machine as described in claim 5, characterized in that, A contact rod (320) is fixedly installed on the outer surface of the cover (308). Both ends of the contact rod (320) are fixedly installed with diagonal rods (321). When the two second lifting rings (2062) move in opposite directions, the second lifting rings (2062) are located within the range of the diagonal rods (321). When the two second lifting rings (2062) move relative to each other, the second lifting rings (2062) are located within the range of the contact rod (320).