Self-gravity trolley head

Abstract

The utility model provides a self-gravity cart head, which relates to the technical field of cart heads and comprises a top plate, a pair of fixed plates are arranged on one side of the bottom of the top plate, movable plates are arranged on the sides, far away from each other, of the fixed plates, and a pushing assembly used for pushing the movable plates to slide along the side walls of the fixed plates is arranged on the side, far away from the fixed plates, below the top plate; two pairs of through first long-strip-shaped grooves are formed in the corresponding positions of the side walls of the pair of movable plates, and rolling assemblies penetrating through the fixed plate are arranged in the two pairs of first long-strip-shaped grooves; a through rotating groove is formed in the top of the top plate, second long-strip-shaped grooves located between the rolling assemblies are formed in the corresponding positions of the side walls of the pair of moving plates, connecting pin shafts penetrating through the fixing plates are arranged in the second long-strip-shaped grooves, and gravity pushing claws located between the rotating groove and the pair of fixing plates are rotationally arranged on the side walls of the connecting pin shafts. Third long-strip-shaped grooves are formed in the corresponding positions of the pair of fixing plates. The utility model has the advantages of reasonable structure, use cost saving and low maintenance cost.

Description

Technical Field

[0001] This utility model relates to the field of trolley head technology, specifically to a gravity-powered trolley head. Background Technology

[0002] Mining cart pushers can be used for scheduling and transportation work in metallurgical mine cart yards, non-metallic mine cart yards, and engineering construction cart yards (such as tunnels). The cart pusher head is an important component of the cart pusher.

[0003] In existing technologies, the gravity pusher of the trolley head is typically driven by a hydraulic cylinder or electric actuator, causing it to tilt and rise around an axle. Then, the movement of a trolley moves the tilted gravity pusher on the trolley head, pushing the wheel axle of the mine car to complete the transport of the mine car. This method requires laying a certain length of hydraulic pipe or cable to follow the movement of the hydraulic cylinder or electric actuator, increasing operating costs and making troubleshooting and maintenance expensive. A gravity-driven trolley head is needed to solve these problems. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a gravity-driven trolley head to solve the problems mentioned in the background technology. This utility model has a reasonable structure, saves on usage costs, and has low maintenance costs.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a gravity-driven trolley head, comprising:

[0006] A top plate, wherein a pair of fixed plates are provided on one side of the bottom of the top plate, and a movable plate is provided on the side of the pair of fixed plates that are far apart from each other. A pushing component for pushing the movable plate to slide along the side wall of the fixed plate is provided on the side of the bottom of the top plate that is far away from the fixed plates.

[0007] Two pairs of through-type first elongated grooves are provided at corresponding positions on the sidewalls of the pair of movable plates, and rolling components that penetrate the fixed plate are provided inside the two pairs of first elongated grooves.

[0008] The top plate has a through-rotating groove, and a second elongated groove is provided at the corresponding position of the side wall of each pair of movable plates, located between the rolling components. A connecting pin is provided inside the second elongated groove, which passes through the fixed plate. A gravity pusher is rotatably provided on the side wall of the connecting pin, located between the rotating groove and the pair of fixed plates. A third elongated groove is provided at the corresponding position of each pair of fixed plates, and a limiting pin is provided inside the third elongated groove, which passes through the fixed plate and is used to limit the gravity pusher.

[0009] Furthermore, a fourth elongated groove is provided at corresponding positions on the sidewalls of the pair of fixed plates, and a connecting pin is provided inside the fourth elongated groove to pass through the movable plate. A fixing post is provided between the pair of fixed plates.

[0010] Furthermore, the gravity pusher includes a pusher head disposed on the side wall of the connecting pin, and a pusher counterweight is disposed on the side of the pusher head near the connecting pin.

[0011] Furthermore, a baffle located below the limiting pin is provided between the pair of fixing plates;

[0012] When the limiting pin moves to one side wall of the third long groove, the lower end face of the push claw counterweight is in contact with the upper end face of the baffle.

[0013] When the limiting pin moves to the other side wall of the third long groove, the upper surface of the push claw counterweight is in a horizontal state.

[0014] Furthermore, the pushing component includes a pair of mounting plates disposed on one side of the pair of fixed plates that are close to each other. Each pair of mounting plates has a sliding groove at a corresponding position on its sidewall. A sliding pin is disposed inside the sliding groove and passes through the moving plate. A support column is disposed between the pair of mounting plates.

[0015] Furthermore, the rolling assembly includes an axle disposed inside the first elongated groove and passing through the fixed plate, and a wheel is provided at the end of the axle;

[0016] One of the rolling components has an axle that passes through the mounting plate.

[0017] Furthermore, a connecting groove is provided between each pair of the movable plates and the pair of mounting plates, and a driving force application component is provided inside the connecting groove.

[0018] Furthermore, the driving force application component includes a movable trolley connected to the side wall of the sliding pin shaft, and a drive motor located inside the ground is provided below the movable trolley. A gear for pushing the movable trolley to move is provided on the output shaft of the drive motor.

[0019] Multiple mobile trolleys are provided, and the multiple mobile trolleys are connected to each other by splicing pins.

[0020] Furthermore, the mobile trolley includes a connecting block disposed inside the pair of connecting slots and sleeved on the side wall of the sliding pin shaft. Each of the pair of connecting blocks has a side plate on the side that is close to each other. A connecting plate is disposed between the tops of the pair of side plates. Multiple push shafts are disposed between the pair of side plates. A connecting shaft is disposed through the pair of side plates. A moving wheel is disposed at the end of the connecting shaft.

[0021] The connecting shaft is positioned between adjacent push shafts, the distance between adjacent push shafts is the same as the distance between the push shaft and the adjacent connecting shaft, and the distance between adjacent push shafts matches the tooth grooves on the gear.

[0022] Furthermore, the sliding pin, the limiting pin, and the connecting pin are respectively located on one side of the transverse limit inner wall of the sliding groove, the third long groove, and the fourth long groove, while the axle and the connecting pin are respectively located on the other side of the transverse limit inner wall of the first long groove and the second long groove.

[0023] The beneficial effects achieved by the present invention using the above structure are as follows:

[0024] This invention uses a pushing component to drive a moving plate to move laterally along the side wall of a fixed plate. The lateral movement of the moving plate causes the limiting pin to move laterally along the third long groove, thus losing its limiting effect on the gravity pusher. The gravity pusher then rotates around the connecting pin until it tilts to one side and connects with the wheel axle of the mine car. Under the action of the moving trolley, the tilted gravity pusher can push the mine car to move. Therefore, it is not necessary to lay a certain length of oil pipe or cable to follow the movement of the hydraulic cylinder or electric push rod to ensure that the gravity pusher on the pusher head flips to push the mine car, thereby saving operating costs and reducing maintenance costs. Attached Figure Description

[0025] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0026] Figure 1 This is a perspective view of a gravity-driven trolley head according to an embodiment of the present invention;

[0027] Figure 2 This is a perspective view of a gravity-driven trolley head according to an embodiment of the present invention;

[0028] Figure 3 This is a perspective view of the connection between the gravity pusher and the fixed plate in a gravity-driven trolley head according to an embodiment of the present invention.

[0029] Figure 4 This is a front sectional view of the connection between the fixed plate and the gravity pusher in a gravity-driven trolley head according to an embodiment of the present invention.

[0030] Figure 5 This is a perspective view of a gravity-driven trolley head and a mobile trolley assembled according to an embodiment of the present invention.

[0031] Figure 6This is a perspective view of a gravity-driven trolley head and multiple mobile carts assembled according to an embodiment of the present invention.

[0032] Figure 7 This is a front view of a gravity-driven trolley head pushing a mine car according to an embodiment of the present invention.

[0033] Figure 8 This is a schematic diagram of a gravity-driven pusher head pushing a mine car according to an embodiment of the present invention;

[0034] In the diagram: 1. Pushing component; 1001. Mounting plate; 1002. Sliding groove; 1003. Sliding pin; 1004. Support column; 2. Connecting groove; 3. Moving plate; 4. First long groove; 5. Top plate; 6. Rotating groove; 7. Rolling component; 71. Axle; 72. Wheel; 8. Second long groove; 9. Connecting pin; 10. Gravity pusher; 101. Pusher counterweight; 102. Pusher head; 11. Limiting pin; 111. Third long groove; 12. Baffle; 13. Fixing plate; 131. Connecting pin; 132. Fourth long groove; 133. Fixing column; 14. Moving trolley; 141. Connecting block; 142. Side plate; 143. Connecting plate; 144. Push shaft; 145. Connecting shaft; 1451. Moving wheel; 15. Gear; 16. Drive motor. Detailed Implementation

[0035] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0036] like Figure 1 As shown, this utility model provides a technical solution: a gravity-powered trolley head, comprising:

[0037] The top plate 5 has a pair of fixed plates 13 on one side of its bottom. Each of the fixed plates 13 has a movable plate 3 on the side away from each other. The bottom side of the top plate 5 away from the fixed plates 13 has a push assembly 1 for pushing the movable plate 3 to slide along the side wall of the fixed plate 13. The push assembly 1 is connected to the mobile trolley 14.

[0038] Two pairs of through first long slots 4 are provided at corresponding positions on the side walls of a pair of movable plates 3, and rolling components 7 that penetrate the fixed plate 13 are provided inside the two pairs of first long slots 4.

[0039] The top plate 5 has a through rotating groove 6. The side walls of the pair of moving plates 3 are provided with corresponding positions of a second long groove 8 located between the rolling components 7. The second long groove 8 is provided with a connecting pin 9 that passes through the fixed plate 13. The side wall of the connecting pin 9 is rotatably provided with a gravity pusher 10 located between the rotating groove 6 and the pair of fixed plates 13. The pair of fixed plates 13 are provided with corresponding positions of a third long groove 111. The third long groove 111 is provided with a limiting pin 11 that passes through the fixed plate 13 and is used to limit the gravity pusher 10. The design uses a pusher component 1 to drive a moving plate 3 to move laterally along the side wall of a fixed plate 13. The lateral movement of the moving plate 3 causes the limiting pin 11 to move laterally along the third long slot 111, losing its limiting effect on the gravity pusher 10. The gravity pusher 10 then rotates around the connecting pin 9 until it tilts to one side and connects with the wheel axle of the mine car. Under the action of the moving trolley 14, the tilted gravity pusher 10 can push the mine car. Without the need to lay a certain length of oil pipe or cable to follow the movement of the hydraulic cylinder or electric push rod, it can also ensure that the gravity pusher 10 on the pusher head flips to push the mine car, thereby saving operating costs and reducing maintenance costs. When the limiting pin 11 limits the gravity pusher 10, the gravity pusher 10 returns to its initial position and does not tilt.

[0040] Reference Figure 2 and Figure 3 Each of the two fixed plates 13 has a fourth elongated groove 132 at a corresponding position on its sidewall. A connecting pin 131 that passes through the movable plate 3 is installed inside the fourth elongated groove 132. A fixing post 133 is installed between the two fixed plates 13. This design improves the stability of the movable plate 3 sliding along the sidewall of the fixed plate 13 by allowing the connecting pin 131 to move laterally along the fourth elongated groove 132.

[0041] Reference Figure 3 and Figure 4 The gravity pusher 10 includes a pusher head 102 disposed on the side wall of the connecting pin 9, and a pusher counterweight 101 disposed on the side of the pusher head 102 near the connecting pin 9. This design, through the pusher counterweight 101 and pusher head 102, allows the pusher head 102 to rotate around the connecting pin 9 under the action of the pusher counterweight 101 when the limiting pin 11 loses its limiting effect on the gravity pusher 10. This causes one side of the pusher to tilt upwards and connect with the wheel axle of the mine car, enabling the pusher to move the mine car.

[0042] Reference Figure 2 and Figure 4 A baffle 12 located below the limiting pin 11 is provided between a pair of fixed plates 13;

[0043] When the limiting pin 11 moves to one side wall of the third long groove 111, the lower end face of the push claw counterweight 101 is in contact with the upper end face of the baffle 12.

[0044] When the limiting pin 11 moves to the other side wall of the third elongated groove 111, the upper surface of the pusher counterweight 101 is in a horizontal state. This design, through the baffle 12, facilitates support for the bottom of the raised pusher counterweight 101, improving the stability when the pusher head 102 is connected to the wheel axle of the mine car.

[0045] Reference Figure 1 and Figure 2 The pushing component 1 includes a pair of mounting plates 1001 positioned close to each other on one side of a pair of fixed plates 13. Each mounting plate 1001 has a sliding groove 1002 at a corresponding position on its sidewall. A sliding pin 1003, penetrating a moving plate 3, is disposed inside each sliding groove 1002. A support column 1004 is positioned between the pair of mounting plates 1001. This design connects the pushing component 1 to the moving plate 3 via the sliding pin 1003, facilitating the application of force to the sliding pin 1003 to move the moving plate 3.

[0046] Reference Figure 3 The rolling assembly 7 includes an axle 71 disposed inside the first elongated groove 4 and passing through the fixed plate 13, and a wheel 72 is provided at the end of the axle 71.

[0047] One of the rolling components 7 has an axle 71 that passes through the mounting plate 1001. This design allows the axle 71 in the rolling component 7 to connect with the wheel 72, facilitating connection with a pair of channel steels under the mine car, limiting the wheel 72 and ensuring the stability of the car head moving under its own weight; the channel steel is U-shaped to facilitate connection with the wheel 72.

[0048] Reference Figure 5 A connecting groove 2 is provided between each pair of movable plates 3 and a pair of mounting plates 1001, and a driving force application component is provided inside the connecting groove 2. This design connects the driving force application component with the connecting groove 2, which facilitates the application of force to the sliding pin 1003 in the pushing component, thereby driving the movable plates 3 to move along the side wall of the fixed plate 13.

[0049] Reference Figure 5 , Figure 6 and Figure 7 The driving force application component includes a mobile trolley 14 connected to the side wall of the sliding pin 1003. A drive motor 16 located inside the ground is provided below the mobile trolley 14. A gear 15 for pushing the mobile trolley 14 to move is provided on the output shaft of the drive motor 16.

[0050] Multiple mobile trolleys 14 are provided, and the multiple mobile trolleys 14 are connected by splicing pins. This design uses the drive motor 16 in the drive force application component to drive the gear 15 to rotate, and the rotation of the gear 15 drives the mobile trolleys 14 to move, which facilitates the transportation of the mobile trolleys 14.

[0051] Reference Figure 7 and Figure 8 The mobile trolley 14 includes a connecting block 141 disposed inside a pair of connecting grooves 2 and sleeved on the side wall of the sliding pin 1003. A side plate 142 is provided on the side of the pair of connecting blocks 141 that are close to each other. A connecting plate 143 is provided between the tops of the pair of side plates 142. A plurality of push shafts 144 are provided between the pair of side plates 142. A connecting shaft 145 is provided through the pair of side plates 142. A moving wheel 1451 is provided at the end of the connecting shaft 145.

[0052] The connecting shaft 145 is positioned between adjacent push shafts 144, and the distance between adjacent push shafts 144 is the same as the distance between push shaft 144 and adjacent connecting shaft 145. The distance between adjacent push shafts 144 matches the tooth groove on gear 15.

[0053] This design ensures the transport of the mobile carriage 14 by matching the distance between adjacent push shafts 144 in the mobile carriage 14 with the tooth grooves on the gear 15, and the distance between adjacent push shafts 144 is the same as the distance between the push shaft 144 and the adjacent connecting shaft 145. Specifically, the distance between the splicing pin and the push shaft 144 is the same as the distance between adjacent push shafts 144, and the distance between the splicing pin and the connecting shaft 145 is the same as the distance between adjacent push shafts 144. Furthermore, the distance between a pair of connecting blocks 141 on one side of the mobile carriage 14 and the distance between the two connecting blocks 141 is the same as the distance between the two connecting blocks 145. The two side plates 142 on the trolley 14 are equidistant from each other, facilitating the splicing operation between the trolleys 14 without affecting the gear 15's push on the trolley 14. By splicing the trolleys 14, the pushing distance of the gravity-driven trolley head can be increased, which is convenient to adjust according to needs and has high versatility. If a hydraulic cylinder or electric actuator is used to drive the gravity pusher 10 to lift and push the axle of the mine car, a certain length of oil pipe or cable needs to be added to follow the movement of the hydraulic cylinder or electric actuator, which increases the cost of use. Moreover, once the oil pipe or cable is fixed to a certain length, it is inconvenient to add more later.

[0054] Reference Figure 3 , Figure 5 and Figure 8 The sliding pin 1003, the limiting pin 11, and the connecting pin 131 are located on one side of the transverse limit inner wall of the sliding groove 1002, the third long groove 111, and the fourth long groove 132, respectively, while the axle 71 and the connecting pin 9 are located on the other side of the transverse limit inner wall of the first long groove 4 and the second long groove 8, respectively. The side of the transverse limit inner wall is opposite to the other side of the transverse limit inner wall. For example, the side of the transverse limit inner wall is represented by the leftmost side of the inner wall of the sliding groove 1002, the third long groove 111, and the fourth long groove 132; and the other side of the transverse limit inner wall of the first long groove 4 and the second long groove 8 is represented by the rightmost side of the inner wall of the first long groove 4 and the second long groove 8.

[0055] The design connects the sliding pin 1003 in the push assembly 1 to the moving plate 3, facilitating the application of force to the sliding pin 1003 to move the moving plate 3. When the gear 15 first applies force to the push shaft 144 on the moving trolley 14, the moving trolley 14 moves, and the gravity-driven push head does not move with the moving trolley 14 as a whole. Simultaneously, due to the movement of the moving trolley 14, the force applied to the sliding pin 1003 in the push assembly 1 causes the moving plate 3 to slide along the side wall of the fixed plate 13. At this time, the sliding pin 1003, the limiting pin 11, and the connecting pin 131 are located on the other side of the transverse limit inner wall of the sliding groove 1002, the third elongated groove 111, and the fourth elongated groove 132, respectively. The connecting block 141 on the moving trolley 14 is in contact with the fixed plate 13, and the limiting pin 11 loses its limiting effect on the gravity pusher 10. Under the action of the pusher counterweight 101, the gravity torque at the rear end of the gravity pusher 10 is increased, which facilitates the rotation of the gravity pusher 10 around the connecting pin 9, making the pusher... One side of the claw 102 is raised and connected to the axle of the mine car, facilitating the application of force to push the mine car forward under the action of the moving trolley 14; the axle 71 and the connecting pin 9 are respectively located on one side of the transverse limit inner wall of the first elongated groove 4 and the second elongated groove 8; when the gear 15 continues to apply force to the next push shaft 144, the moving trolley 14 continues to move and applies force to the sliding pin 1003 in the pushing assembly 1, causing the gravity-driven push head to move along with the moving trolley 14 as a whole. At this time, gravity... The pusher counterweight 101 in the pusher 10 continuously maintains the gravitational torque under the action of the moving trolley 14 driving the gravity pusher head, keeping one side of the pusher head 102 in a tilted state, ensuring a stable connection between the pusher head 102 and the wheel axle of the mine car, and improving the stability of the mine car transport; the gear 15 rotates periodically to apply force to multiple push shafts 144, and the pusher counterweight 101 is able to maintain the tilted state of one side of the pusher head 102 due to the continuous gravitational torque generated.

[0056] Reference Figures 1-8As an embodiment of this utility model: when it is necessary to transport the mine car, the worker drives the gear 15 to rotate through the drive motor 16. When the gear 15 first applies force to the push shaft 144 on the moving trolley 14, the moving trolley 14 moves forward. At this time, the gravity push head will not move forward with the moving trolley 14 as a whole. At the same time, the forward movement of the moving trolley 14 applies force to the sliding pin 1003 in the pushing assembly 1, causing the moving plate 3 to slide along the side wall of the fixed plate 13. At this time, the sliding pin 1003, the limiting pin 11, and the connecting pin 131 are respectively located on the other side of the transverse limit inner wall of the sliding groove 1002, the third long groove 111, and the fourth long groove 132. The connecting block 141 on the moving trolley 14 is in contact with the fixed plate 13, and the limiting pin 11 loses its limiting effect on the gravity push claw 10. Under the action of the push claw counterweight 101, the gravity torque at the rear end of the gravity push claw 10 is increased, which makes it easier for the gravity push claw 10 to rotate around the connecting pin 9, so that the push claw One side of the head 102 is raised and connected to the axle of the mine car, facilitating the application of force to push the mine car forward under the action of the moving trolley 14; the axle 71 and the connecting pin 9 are respectively located on one side of the transverse limit inner wall of the first elongated groove 4 and the second elongated groove 8; when the gear 15 continues to apply force to the next push shaft 144, the moving trolley 14 continues to move and apply force to the sliding pin 1003 in the pushing assembly 1, causing the gravity-driven push head to follow the moving trolley 14 forward as a whole. At this time, the gravity push... The pusher counterweight 101 in the claw 10 maintains a gravitational torque under the action of the moving trolley 14 driving the gravity-driven pusher head forward, keeping one side of the pusher head 102 in a tilted state, ensuring a stable connection between the pusher head 102 and the wheel axle of the mine car, and improving the stability of the mine car transport; the gear 15 rotates periodically to apply force to multiple push shafts 144, and the pusher counterweight 101 is able to maintain the tilted state of one side of the pusher head 102 due to the continuous gravitational torque generated.

[0057] Similarly, when the drive motor 16 drives the gear 15 to rotate in the opposite direction for the first time, applying force to the push shaft 144 on the moving trolley 14, the moving trolley 14 moves backward. At this time, the gravity push head will not move backward with the moving trolley 14 as a whole. At the same time, the sliding pin 1003 drives the moving plate 3 to drive the limiting pin 11 to slide along the third long slot 111, which plays a limiting role on the push claw counterweight 101 in the gravity push claw 10. At this time, the push claw counterweight 101 is momentarily weightless, which makes it easy for the gravity push claw 10 to rotate around the connecting pin 9, driving the upper end face of the push claw head 102 to be in a horizontal state. When the gear 15 continues to rotate in the opposite direction to apply force to the next push shaft 144, the moving trolley 14 continues to move backward to push the push assembly 1. The sliding pin 1003 applies force, causing the gravity pusher head to move backward along with the moving trolley 14. At this time, the counterweight 101 of the gravity pusher 10 continuously loses weight under the action of the moving trolley 14 driving the gravity pusher head backward, maintaining the horizontal state of the top of the pusher head 102, avoiding interference between the pusher head 102 and the wheel axle of the mine car, and ensuring that the gravity pusher 10 can return to the initial position, which is convenient for transporting the mine car behind. Therefore, it is not necessary to lay a certain length of oil pipe or cable to follow the movement of the hydraulic cylinder or electric push rod to ensure that the gravity pusher 10 on the pusher head flips to push the mine car, thereby saving the use cost and the maintenance cost, and improving the practicality of this utility model.

[0058] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0059] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A gravity-powered trolley head, characterized in that, include: A top plate (5) is provided with a pair of fixed plates (13) on one side of the bottom of the top plate (5). A movable plate (3) is provided on the side of the pair of fixed plates (13) that are far apart from each other. A push component (1) is provided on the side of the top plate (5) that is far away from the fixed plates (13) for pushing the movable plate (3) to slide along the side wall of the fixed plate (13). Two pairs of through first long slots (4) are provided at corresponding positions on the side walls of the pair of movable plates (3), and rolling components (7) that penetrate the fixed plate (13) are provided inside the two pairs of first long slots (4). The top plate (5) has a through rotating groove (6) at its top. A second long groove (8) is provided at the corresponding position of the side wall of the pair of moving plates (3) between the rolling components (7). A connecting pin (9) is provided inside the second long groove (8) through the fixed plate (13). A gravity pusher (10) is provided rotatably on the side wall of the connecting pin (9) between the rotating groove (6) and the pair of fixed plates (13). A third long groove (111) is provided at the corresponding position of the pair of fixed plates (13). A limiting pin (11) is provided inside the third long groove (111) through the fixed plate (13) and used to limit the gravity pusher (10).

2. The gravity-driven trolley head according to claim 1, characterized in that, A fourth long groove (132) is provided at the corresponding position of the side wall of the pair of fixed plates (13). A connecting pin (131) that passes through the moving plate (3) is provided inside the fourth long groove (132). A fixing column (133) is provided between the pair of fixed plates (13).

3. The gravity-driven trolley head according to claim 1, characterized in that, The gravity pusher (10) includes a pusher head (102) disposed on the side wall of the connecting pin (9), and a pusher counterweight (101) is disposed on the side of the pusher head (102) near the connecting pin (9).

4. The gravity-driven trolley head according to claim 3, characterized in that, A baffle (12) is provided between the pair of fixed plates (13) and located below the limiting pin (11). When the limiting pin (11) moves to one side wall of the third long groove (111), the lower end face of the push claw counterweight (101) is in contact with the upper end face of the baffle (12); When the limiting pin (11) moves to the other side wall of the third long groove (111), the upper surface of the push claw counterweight (101) is in a horizontal state.

5. The gravity-driven trolley head according to claim 2, characterized in that, The pushing component (1) includes a pair of mounting plates (1001) disposed on one side of the pair of fixed plates (13) close to each other. Sliding grooves (1002) are provided at corresponding positions on the sidewalls of the pair of mounting plates (1001). A sliding pin (1003) penetrating the moving plate (3) is provided inside the sliding groove (1002). A support column (1004) is provided between the pair of mounting plates (1001).

6. The gravity-driven trolley head according to claim 5, characterized in that, The rolling assembly (7) includes an axle (71) disposed inside the first elongated groove (4) and passing through the fixed plate (13), and a wheel (72) is provided at the end of the axle (71). One of the rolling components (7) has an axle (71) that passes through the mounting plate (1001).

7. The gravity-driven trolley head according to claim 6, characterized in that, A connecting groove (2) is provided between each pair of the movable plates (3) and the pair of mounting plates (1001), and a driving force application component is provided inside the connecting groove (2).

8. The gravity-driven trolley head according to claim 7, characterized in that, The driving force application component includes a mobile trolley (14) connected to the side wall of the sliding pin (1003). A drive motor (16) located inside the ground is provided below the mobile trolley (14). A gear (15) for pushing the mobile trolley (14) to move is provided on the output shaft of the drive motor (16). Multiple mobile trolleys (14) are provided, and the multiple mobile trolleys (14) are connected to each other by splicing pins.

9. The gravity-driven trolley head according to claim 8, characterized in that, The mobile trolley (14) includes a connecting block (141) disposed inside a pair of connecting grooves (2) and sleeved on the side wall of the sliding pin (1003). A side plate (142) is provided on the side of the pair of connecting blocks (141) that are close to each other. A connecting plate (143) is provided between the tops of the pair of side plates (142). A plurality of push shafts (144) are provided between the pair of side plates (142). A connecting shaft (145) is provided through the pair of side plates (142). A moving wheel (1451) is provided at the end of the connecting shaft (145). The connecting shaft (145) is positioned between adjacent push shafts (144), the distance between adjacent push shafts (144) is the same as the distance between the push shaft (144) and the adjacent connecting shaft (145), and the distance between adjacent push shafts (144) matches the tooth groove on the gear (15).

10. The gravity-driven trolley head according to claim 9, characterized in that, The sliding pin (1003), the limiting pin (11), and the connecting pin (131) are located on one side of the transverse limit inner wall of the sliding groove (1002), the third long groove (111), and the fourth long groove (132), respectively, and the axle (71) and the connecting pin (9) are located on the other side of the transverse limit inner wall of the first long groove (4) and the second long groove (8), respectively.

Images