Mechanical underground storage battery car sand scattering device

Abstract

The invention discloses a mechanical underground electromobile sand scattering device which comprises a sand bottle, a sand falling assembly, a driving assembly and a bottom table, a sand bottle support, a connecting rod supporting column, a guide rail frame, a driving rod supporting column and a reset spring assembly are sequentially arranged on the bottom table at intervals, the sand bottle is installed on the sand bottle support, and a sand falling opening is formed in the bottom end of the sand bottle. The sand falling assembly comprises a sand falling rod, a driving connecting rod and a driving disc, and the sand falling rod extends into the sand bottle and is driven by the driving disc to rotate; the driving disc is installed at one end of the driving connecting rod which is rotationally installed on the connecting rod supporting column. The driving assembly comprises a driving rod rotationally installed on the driving rod supporting column, one end of the driving rod is in sliding connection with the driving connecting rod, and the other end of the driving rod is a force application end and arranged above the reset spring assembly. The sand scattering device is simple in structure, flexible to operate and low in cost, the driving disc is driven to drive the sand falling rod to rotate through transmission of the driving connecting rod, sand in the sand bottle is stirred and scattered, sand is discharged outwards, normal sand feeding in the complex environment is achieved, and the sand scattering effect is improved.

Description

Technical Field

[0001] This invention relates to the field of underground battery-powered vehicle transportation technology, specifically to a mechanical underground battery-powered vehicle sand-spreading device. Background Technology

[0002] Underground electric vehicles have heavy workloads and long braking distances. To shorten these distances, manufacturers typically add sand-spreading devices inside the vehicles. These devices spread sand between the wheels and the rails during braking to increase friction and thus shorten the braking distance, ensuring braking safety. Current sand-spreading methods involve adding a control lever to the driver's cab. During operation, this lever is used to swing sand bottles placed above the rails. The swinging motion spreads sand onto the rails, creating a sand surface that assists braking. However, with current sand-spreading devices, the driver must forcefully shake the control lever back and forth, which is inconvenient. Furthermore, because the sand is delivered downwards by gravity, clumps of sand can accumulate inside, easily causing blockages. Relying solely on the lever's movement is insufficient to ensure proper sand dispensing, thus reducing the effectiveness of sand-spreading braking. Summary of the Invention

[0003] The purpose of this invention is to address the shortcomings of the existing technology by providing a mechanical downhole battery-powered sand-spreading device that disperses the sand in the sand bottle, thereby releasing the clumps of sand that are causing blockages.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows: A mechanical downhole battery-powered sand-spreading device includes a sand bottle, a sand-dropping assembly, a drive assembly, and a base platform. The base platform is provided with a sand bottle bracket, a connecting rod support column, a guide rail frame, a drive rod support column, and a return spring assembly at intervals. The sand bottle is installed on the sand bottle bracket, and a sand-dropping port is opened at its bottom end.

[0005] The sand-falling assembly includes a sand-falling rod, a drive link, and a drive disc. The sand-falling rod extends into the sand bottle from the sand-falling port, and its lower half is a spiral rod. The drive disc has a spiral hole in its center and is fitted onto the spiral part of the sand-falling rod, which can drive the sand-falling rod to rotate. The middle part of the drive link is rotatably mounted on the link support column, and the drive disc is movably mounted at one end pointing towards the sand bottle. The other end of the drive link has a connecting groove.

[0006] The drive assembly includes a drive rod, the middle of which is rotatably mounted on the drive rod support column. One end of the drive rod near the drive connecting rod is also provided with a connecting elongated hole. A guide rod is slidably mounted in the connecting elongated hole. The guide rod passes through the connecting groove on the drive connecting rod and is slidably mounted on the guide rail frame. The other end of the drive rod is the force-applying end, which is located above the reset spring assembly.

[0007] Furthermore, the centers of the sand bottle bracket, connecting rod support column, guide rail frame, drive rod support column, and reset spring assembly on the base platform are all on the same central axis.

[0008] Furthermore, the end of the driving link pointing towards the sand bottle in the sand-falling assembly is provided with two relatively spaced arms in a U-shaped structure, and each arm is provided with a sliding groove; the other end of the driving link is provided with a connecting groove in the form of an elongated hole.

[0009] Furthermore, the drive disc in the sand-falling assembly includes an outer disc and an inner disc coaxially mounted. The outer disc is a one-way ratchet disc, including a matching outer pawl disc and an inner ratchet. The outer pawl disc has two symmetrical support rods on its outer side wall. The two support rods are slidably installed in the sliding slots of the two support arms of the drive linkage and are simultaneously slidably installed on the sand bottle support. The interior of the outer pawl disc has multiple pawls corresponding to the inner ratchet.

[0010] The inner disc is a spiral sleeve, which is interference-fitted to the inner side of the inner ratchet, and has a spiral hole in its center, which is a waist-shaped hole.

[0011] Furthermore, the top end of the sand-falling rod in the sand-falling assembly is rotatably installed inside the top end of the sand bottle, and its lower half spiral rod is inserted into the spiral hole of the inner plate; the upper half of the sand-falling rod is also provided with multiple horizontally arranged stirring rods, which are staggered.

[0012] Furthermore, when the drive disc moves upward, its inner disc rotates; when the drive disc moves downward, its inner disc remains stationary, causing the sand-falling rod to rotate.

[0013] Furthermore, the sand bottle is provided with a sand filling port and an observation window on its side.

[0014] Furthermore, the base platform has two connecting rod support columns and two driving rod support columns, which are arranged at intervals to clamp the corresponding driving connecting rod and driving rod respectively; the two vertical walls of the guide rail frame are respectively provided with sliding grooves along their vertical length direction.

[0015] Furthermore, the reset spring assembly on the base platform includes a fixed base, a tension spring, and a support block. The fixed base is installed on the base platform, the bottom end of the tension spring is installed inside the fixed base, and the top end of the tension spring is fixed to the support block. The height of the support block is consistent with the rising height of the drive disc.

[0016] Furthermore, the upper surface of the outer disk of the drive disk is inclined, with the inner side higher than the outer side; the top surface of the inner disk is horizontal.

[0017] Compared with the prior art, the present invention has the following beneficial effects: The present invention has a simple structure, flexible operation, convenient maintenance, and low cost. Through foot-operated sand spreading, the drive linkage drives the drive disc to drive the sand-dropping rod to rotate, which agitates and disperses the sand in the sand bottle and causes the sand bottle to release sand outward, realizing normal sand delivery in complex environments. At the same time, the elastic force applied by the return spring assembly reduces manual shaking and recovery actions, which can reduce the external force applied during the sand spreading process, reduce the labor intensity of workers, save labor costs, improve the sand spreading effect, and improve the safety of transportation operations. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the base platform in this invention; Figure 3 This is an assembly diagram showing the relationship between the base platform, the drive linkage, and the drive rod in this invention. Figure 4 This is a schematic diagram of the drive linkage in this invention; Figure 5 This is a schematic diagram of the drive rod structure in this invention; Figure 6 This is an assembly diagram showing the relationship between the sand bottle, the sand-falling rod, and the drive disc in this invention. Figure 7 for Figure 6 Longitudinal center section view of the structure; Figure 8 This is a schematic diagram of the outer disk structure of the drive disk in this invention; Figure 9 This is a schematic diagram of the inner disk structure of the drive disk in this invention; In the diagram: 1. Base platform; 2. Sand bottle; 3. Sand dropping assembly; 4. Drive assembly; 5. Return spring assembly; 6. Guide rod; 11. Sand bottle bracket; 12. Connecting rod support column; 13. Guide rail frame; 14. Drive rod support column; 15. Fixed base; 16. Guide groove; 17. Slide groove; 21. Sand bottle top cover; 22. Sand filling port; 23. Sand dropping port; 31. Drive connecting rod; 32. Drive disc; 33. Sand dropping rod; 34. Rotating assembly; 41. Connecting elongated hole; 311. Support arm; 312. Connecting slide groove; 313. Sliding slot; 321. Outer disc; 322. Pawl; 323. Inner ratchet; 324. Support rod; 325. Inner disc; 326. Spiral hole; 331. Spiral rod; 332. Straight rod; 333. Stirring rod. Detailed Implementation

[0019] It should be noted that in the description of this invention, terms such as "upper", "lower", "left", "right", "inner", "outer", "coaxial", "top", "bottom", "one end", and "the other end" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are only used to facilitate the description of the structural relationship between the components in this invention and do not specifically mean that any component in this invention must have a specific orientation, be constructed and operated in a specific orientation, or be construed as a limitation of this invention.

[0020] Furthermore, it should be noted that, unless otherwise explicitly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0021] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings: like Figure 1 As shown, a mechanical underground battery-powered sand-spreading device includes a base platform 1, a sand bottle 2, a sand-dropping assembly 3, and a drive assembly 4. Combined with... Figure 2 As shown, the base platform 1 provides support and installation foundation for the entire device. From right to left, sand bottle support 11, connecting rod support column 12, guide rail frame 13, drive rod support column 14, and return spring assembly 5 are fixed on it at intervals. The centers of the sand bottle support 11, connecting rod support column 12, guide rail frame 13, drive rod support column 14, and return spring assembly 5 are all on the same central axis. The connecting rod support column 12 and drive rod support column 14 are both composed of two support column plates arranged at intervals, and each has a horizontally penetrating connecting hole. The guide rail frame 13 is arranged in an inverted U-shape and spans across the base platform 1. Each of its two opposite vertical walls has a sliding groove 17 along its length.

[0022] The sand bottle 2 is made of steel pipe and installed on the aforementioned sand bottle bracket 11. Its size matches the original size of the electric vehicle and is compatible with various models of electric vehicles; combined with Figure 6 and Figure 7 As shown, the sand bottle 2 has a cylindrical structure with a top cap 21 installed at its top and a funnel-shaped bottom to facilitate the falling of sand. A sand inlet 23 is located at the lowest point. The side wall of the sand bottle 2 has a sand inlet 22 and an observation window, allowing for timely addition of sand and observation of its internal condition. The sand bottle support 11 has no base platform 1 to obstruct the flow of sand onto the track. Furthermore, symmetrical guide grooves 16 are provided on both the front and rear side walls of the sand bottle support 11.

[0023] Combination Figure 3 , Figure 6 as well as Figure 7 As shown, the sand-falling assembly 3 includes a sand-falling rod 33, a driving connecting rod 31, and a driving disc 32. The sand-falling rod 33 extends upward from the sand-falling port 23 into the interior of the sand bottle 2. Its top end is rotatably mounted at the center of the bottom of the sand bottle top cover 21 of the sand bottle 2 via a rotating assembly 34, so that the sand-falling rod 33 can rotate in the sand bottle 2. The lower half of the sand-falling rod 33 is a spiral rod 331, and the upper half is a straight rod 332. The two are welded and fixed together or integrally formed. Multiple horizontally arranged stirring rods 333 are also fixedly installed on the circumferential side wall of the upper half of the straight rod 332 of the sand-falling rod 33. The multiple stirring rods 333 are arranged in multiple layers and interlaced with each other, which can improve the stirring effect.

[0024] The drive link 31 is positioned in the middle of the link support column 12, with a through hole in its middle portion, and is rotatably mounted on the connection hole of the link support column 12 via a rotating shaft; combined with Figure 4 As shown, the end of the driving link 31 pointing towards the sand bottle 2 is provided with two relatively spaced support arms 311. The two support arms 311 are arranged in a U-shape and each of them is provided with a sliding groove 313. The end of the driving link 31 away from the sand bottle 2 is provided with a connecting groove 312, which is arranged in the form of an elongated hole.

[0025] The aforementioned drive disc 32 is mounted on the two support arms 311 of the drive linkage 31, in conjunction with... Figures 7 to 9 As shown, the drive disc 32 includes an outer disc 321 and an inner disc 325 coaxially mounted. The outer disc 321 is a one-way ratchet disc, including a matching outer pawl disc and an inner ratchet 323. The outer pawl disc has at least one pawl 322 inside its disc body. The inner ratchet 323 is coaxially mounted on the inner ring side of the outer pawl disc and can cooperate with the pawl 322 to control its one-way rotation. The outer side wall of the outer pawl disc also has two symmetrical support rods 324 on the same diameter extension line. The two support rods 324 are slidably installed in the sliding slots 313 of the two support arms 311 of the drive linkage 31. At the same time, the outer ends of the two support rods 324 are also slidably installed in the guide grooves 16 on the corresponding side of the sand bottle bracket 11 and can slide up and down along the guide grooves 16. The inner disc 325 is a spiral sleeve, coaxially and interference-fitted to the inner side of the inner ratchet 323. A spiral hole 326 is provided at its center. The spiral hole 326 is an oblong hole that fits the spiral rod 331 of the lower half of the sand drop rod 33. The sliding between the two can drive the sand drop rod 33 to rotate.

[0026] Combination Figure 3 and Figure 5As shown, the drive assembly 4 includes a drive rod, the middle of which is placed between the two support plates of the drive rod support column 14. It has a connecting through hole and is rotatably connected to the connecting hole of the drive rod support column 14 via a rotating shaft. The end of the drive rod near the drive connecting rod 31 has a connecting elongated hole 41, which is connected to the connecting groove 312 on the drive connecting rod 31 via a guide rod 6. The guide rod 6 can slide in the connecting elongated hole 41 and the connecting groove 312 to form a groove rotating pair. At the same time, the two ends of the guide rod 6 are respectively inserted into the two vertical grooves 17 of the guide rail frame 13 and can slide up and down along the vertical grooves 17. The end of the drive rod away from the drive link 31 is the force-applying end, and a reset spring assembly 5 is provided below it. The reset spring assembly 5 includes a fixed base 15, a tension spring, and a support block. The fixed base 15 is fixedly installed on the upper surface of the base 1. The lower end of the tension spring is fixed inside the fixed base 15 and is vertically arranged. The top end of the tension spring is fixed with a support block for contact buffering with the force-applying end of the drive rod.

[0027] The specific operating principle is as follows: Under normal initial conditions, the tension spring in the above-mentioned reset spring assembly 5 causes the lifting height of the driving rod application end to be consistent with the rising height of the above-mentioned driving disk 32. The upper surface of the inner disk 325 in the driving disk 32 is set horizontally. Under the action of the tension spring, it is in close contact with the sand drop opening 23 of the sand bottle 2, which can just block the sand drop opening 23 of the sand bottle 2 and prevent sand leakage.

[0028] When braking and sand spreading is required, the worker steps on the force-applying end of the drive rod. Due to the leverage effect, the other end of the drive rod rises upward. This end is slidably connected to the connecting groove 312 of the drive linkage 31 via the guide rod 6, and is simultaneously limited by the guide rail frame 13, causing the connecting groove end of the drive linkage 31 to rise upward. Similarly, due to the leverage effect, the support arm end of the drive linkage 31 moves downward, thereby causing the drive disc 32 to slide downward. Due to the one-way ratchet disc in the drive disc 32, when the drive disc 32 moves downward, the pawl 322 locks the inner ratchet 323, thereby restricting the rotation of the inner disc 325. Because the spiral hole 326 on the inner disc 325 is spirally engaged with the lower half of the spiral rod 331 of the sand-falling rod 33, the sand-falling rod 33 is driven to rotate, the sand-falling opening 23 opens, and sand falls downward along with the rotation of the sand-falling rod 33. Furthermore, the upper surface of the outer disc 321 in the aforementioned drive disc 32 is inclined, with the inner side higher than the outer side, to prevent sand from accumulating.

[0029] When the worker releases the drive rod, the force-applying end of the drive rod is lifted upward by the tension spring. Through the transmission of the drive rod and drive linkage 31, the drive disc 32 moves upward. At this time, the frictional force of the sand inside the bottle on the sand drop rod 33 is greater than the transmitted spring force, so the sand drop rod 33 does not rotate. However, at this time, the inner ratchet 323 in the one-way ratchet disc rotates, and the inner disc 325, which is fixed coaxially with it, rotates synchronously. It rotates and moves upward along the spiral rod 331 of the sand drop rod 33 to reset, thereby blocking the sand drop opening 23.

[0030] This process is repeated to achieve braking and sand spreading. Throughout the process, the rotation of the sand-falling rod 33 drives the stirring rod 333 fixed on it to stir, thereby breaking up the sand in the sand bottle 2 to ensure that the sand is spread smoothly and normally downwards in complex environments.

[0031] Of course, the above description is not intended to limit the present invention, and the present invention is not limited to the examples given above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present invention should also fall within the protection scope of the present invention.

Claims

1. A mechanical underground battery-powered sand-spreading device, characterized in that: The system includes a sand bottle, a sand dropping assembly, a drive assembly, and a base. The base is provided with a sand bottle bracket, a connecting rod support column, a guide rail frame, a drive rod support column, and a return spring assembly at intervals. The sand bottle is installed on the sand bottle bracket and has a sand dropping port at its bottom. The sand-falling assembly includes a sand-falling rod, a drive connecting rod, and a drive disc. The sand-falling rod extends into the sand bottle from the aforementioned sand-falling port, and its lower half is a spiral rod. The drive disc has a spiral hole in its center and is fitted onto the spiral part of the aforementioned sand-falling rod, enabling it to rotate the sand-falling rod. The middle part of the aforementioned drive connecting rod is rotatably mounted on the aforementioned connecting rod support column, and the drive disc is movably mounted at one end of the drive connecting rod pointing towards the sand bottle. The other end of the drive connecting rod has a connecting groove. The drive assembly includes a drive rod, the middle of which is rotatably mounted on the drive rod support column. One end of the drive rod near the drive connecting rod is also provided with a connecting elongated hole. A guide rod is slidably mounted in the connecting elongated hole. The guide rod passes through the connecting groove on the drive connecting rod and is slidably mounted on the guide rail frame. The other end of the drive rod is the force-applying end, which is positioned above the reset spring assembly.

2. The mechanical underground battery-powered sand-spreading device according to claim 1, characterized in that: The centers of the sand bottle bracket, connecting rod support column, guide rail frame, drive rod support column, and reset spring assembly on the base platform are all on the same central axis.

3. The mechanical underground battery-powered sand-spreading device according to claim 1, characterized in that: The sand-falling assembly has two relatively spaced arms at one end of the drive link pointing towards the sand bottle, arranged in a U-shape, with sliding grooves on both arms; the other end of the drive link has a connecting groove in the form of an elongated hole.

4. The mechanical underground battery-powered sand-spreading device according to claim 3, characterized in that: The driving disk in the sand-falling assembly includes an outer disk and an inner disk coaxially mounted. The outer disk is a one-way ratchet disk, including a matching outer pawl disk and an inner ratchet. The outer pawl disk has two symmetrical support rods on its outer side wall. The two support rods are slidably installed in the sliding slots of the two support arms of the driving linkage and are slidably installed on the sand bottle support. The interior of the outer pawl disk has multiple pawls corresponding to the inner ratchet. The inner disc is a spiral sleeve, which is interference-fitted to the inner side of the inner ratchet, and has a spiral hole in its center, which is a waist-shaped hole.

5. The mechanical underground battery-powered sand-spreading device according to claim 4, characterized in that: The top of the sand-falling rod in the sand-falling assembly is rotatably installed inside the top of the sand bottle, and its lower half spiral rod is inserted into the spiral hole of the inner plate; the upper half of the sand-falling rod is also equipped with multiple horizontally arranged stirring rods, which are staggered.

6. The mechanical underground battery-powered sand-spreading device according to claim 5, characterized in that: When the drive disc moves upward, its inner disc rotates; when the drive disc moves downward, its inner disc remains stationary, causing the sand-falling rod to rotate.

7. The mechanical underground battery-powered sand-spreading device according to claim 1, characterized in that: The sand bottle is equipped with a sand filling port and an observation window on its side.

8. The mechanical underground battery-powered sand-spreading device according to claim 1, characterized in that: The base platform has two connecting rod support columns and two driving rod support columns, which are arranged at intervals to clamp the corresponding driving connecting rod and driving rod respectively; the two vertical walls of the guide rail frame are respectively provided with sliding grooves along their vertical length.

9. The mechanical underground battery-powered sand-spreading device according to claim 1, characterized in that: The reset spring assembly on the base platform includes a fixed base, a tension spring, and a support block. The fixed base is installed on the base platform, the bottom end of the tension spring is installed inside the fixed base, and the top end of the tension spring is fixed to the support block. The height of the support block is consistent with the rising height of the drive disc.

10. The mechanical underground battery-powered sand-spreading device according to claim 4, characterized in that: The upper surface of the outer disk of the drive disk is inclined, with the inner side higher than the outer side; the top surface of the inner disk is horizontal.

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