Lightweight prop foot ball for film and television

Abstract

The utility model relates to a light-weight prop foot ball for movies and televisions, which comprises a spherical shell, the shell is composed of an upper hemispherical cavity shell and a lower hemispherical cavity shell, two reinforcing supports which are distributed up and down are respectively inserted into the two cavity shells of the shell, each reinforcing support comprises an annular center disc, and the two center discs abut against each other; a plurality of inclined supporting rods are formed on the outer ring of the center disc, and the outer ends of the supporting rods are welded and fixed to the inner wall of the cavity shell. A vertical supporting column is inserted and fixed to the bottom of the shell, and a plurality of vertical exhaust holes communicating with the counter bore are formed in the transition face on the periphery of the boss; an exhaust channel penetrating through the bottom end of the supporting column is formed in the supporting column, the upper portion of the exhaust channel is located in the counter bore of the connecting column and provided with a communicating hole communicated with the counter bore, and the bottom end of the exhaust channel is in threaded connection with a sealing plug. Two cavity shells of the shell are fixedly connected together through girth welding, and the shell is filled with water.

Description

Technical fields:

[0001] This utility model relates to the technical field of prop balls, and more specifically to a lightweight prop ball for film and television. Background technology:

[0002] Currently, foot ball props are used in period dramas. These props consist of a spherical counterweight ball, chains, and shackles. Ancient foot balls used a solid iron counterweight ball. If foot ball props were made using this method, it would be costly and impractical. Therefore, lightweighting of foot ball props needs further research. Some have suggested using foam to make the counterweight ball, which would significantly reduce the weight. However, foam counterweight balls are too light and would affect performance during filming. Water-filled props are available and are relatively lightweight. Therefore, foot ball props could also be made lighter by filling them with water without affecting performance. Thus, the development of a water-filled foot ball is proposed. Utility Model Content:

[0003] The purpose of this invention is to address the shortcomings of existing technologies by providing a lightweight prop ball for film and television. The prop ball has a simple and compact structure, is easy to fill with water for added weight, and is also strong and not easily damaged.

[0004] A lightweight prop ball for film and television includes a spherical outer shell, which is composed of two hemispherical cavities. Two reinforcing supports are inserted into the two cavities, one above the other. Each reinforcing support includes a circular central disc, and the two central discs abut against each other. The outer ring of the central disc is formed with several obliquely placed support rods, and the outer ends of the support rods are welded and fixed to the inner wall of the cavity.

[0005] A vertical support column is inserted and fixed to the bottom of the outer shell. The bottom end of the support column is spherical and is in the same spherical surface as the outer wall of the outer shell. The top end of the support column passes through two central discs and is inserted and fixed in a cylindrical connecting column. The top of the connecting column is formed with a conical transition surface. A cylindrical boss is formed in the middle of the transition surface. The boss is inserted and fixed to the top of the outer shell. A stepped hole extending to the connecting column is formed on the upper end surface of the boss. A water inlet hole penetrating the outer wall of the connecting column is formed at the bottom end of the stepped hole. A T-shaped connector is screwed and fixed to the top of the stepped hole. A U-shaped connector buckle is formed on the upper part of the connector.

[0006] The bottom end of the connecting column abuts against the central plate and has a circular countersunk hole. Several vertical vent holes connected to the countersunk hole are formed on the transition surface around the boss. An vent channel penetrating the bottom end of the support column is formed inside the support column. The upper part of the vent channel is located in the countersunk hole of the connecting column and has a connecting hole connected to the countersunk hole. A sealing plug is screwed to the bottom end of the vent channel. A limit sleeve is inserted and fixed on the support column on the lower side of the reinforcing bracket. The limit sleeve abuts against the central plate.

[0007] The two cavities of the outer shell are fixedly connected together by circumferential welding, and the outer shell is filled with water.

[0008] The support rod is uniformly arranged in a ring around the central axis of the central disk, and the central axis of the central disk, the central axis of the support column, and the central axis of the connecting column are on the same straight line.

[0009] Preferably, an annular sealing ring is fixed to the lower end face of the connecting post around the countersunk hole, and the sealing ring presses against the central plate.

[0010] Preferably, at least four support rods are provided, and the support rods are evenly distributed in a ring around the central axis of the central disk.

[0011] Preferably, the bottom of the exhaust channel on the support column is formed with an enlarged hole, the sealing plug is screwed into the enlarged hole, and a lower sealing gasket is clamped and fixed between the bottom surface of the enlarged hole and the sealing plug.

[0012] Preferably, an upper sealing gasket is inserted into the stepped hole of the connecting column, and the upper sealing gasket is clamped between the stepped surface of the stepped hole and the connector.

[0013] Preferably, the vent holes are provided in three places, and the vent holes are evenly distributed in a ring around the central axis of the connecting column, with the upper end of the vent holes located above the water inlet holes.

[0014] The beneficial effects of this utility model are as follows:

[0015] This prop ball has a simple and compact structure, making it easy to fill with water to enhance its weight. It is also strong and not easily damaged. Attached image description:

[0016] Figure 1 This is a front view of the structure of this utility model;

[0017] Figure 2 This is a side view of the semi-sectional structure of the present invention;

[0018] Figure 3 This is a three-dimensional structural diagram of the present invention without an upper cavity shell.

[0019] In the diagram: 1. Outer shell; 11. Cavity shell; 2. Reinforcing bracket; 21. Central disc; 22. Support rod; 3. Connecting column; 31. Stepped hole; 32. Water inlet hole; 33. Transition surface; 34. Boss; 35. Countersunk hole; 36. Vent hole; 4. Supporting column; 41. Vent channel; 42. Connecting hole; 43. Enlarged hole; 5. Connector; 51. Connecting buckle; 7. Sealing plug; 8. Upper sealing gasket; 9. Lower sealing gasket; 10. Sealing ring; 20. Limiting sleeve. Detailed implementation method:

[0020] Example: See Figures 1 to 3 As shown, a lightweight prop ball for film and television includes a spherical outer shell 1, which is composed of two hemispherical cavities 11. Two reinforcing supports 2 are respectively inserted into the two cavities 11, one above the other. Each reinforcing support 2 includes an annular central disc 21, with the two central discs 21 abutting against each other. The outer ring of the central disc 21 is formed with several obliquely placed support rods 22, and the outer ends of the support rods 22 are respectively welded and fixed to the inner wall of the cavity 11.

[0021] A vertical support column 4 is inserted and fixed to the bottom of the outer shell 1. The bottom end of the support column 4 is spherical and is in the same spherical surface as the outer wall of the outer shell 1. The top end of the support column 4 passes through two central discs 21 and is inserted and fixed in the cylindrical connecting column 3. The top of the connecting column 3 is formed with a conical transition surface 33. A cylindrical boss 34 is formed in the middle of the transition surface 33. The boss 34 is inserted and fixed to the top of the outer shell 1. A stepped hole 31 extending to the connecting column 3 is formed on the upper surface of the boss 34. A water inlet hole 32 penetrating the outer wall of the connecting column 3 is formed at the bottom end of the stepped hole 31. A T-shaped connector 5 is screwed and fixed to the top of the stepped hole 31. A U-shaped connector buckle 51 is formed on the upper part of the connector 5. A connecting chain can be installed on the connector buckle 51.

[0022] The bottom end of the connecting column 3 abuts against the central plate 21 and is formed with a circular countersunk hole 35. Several vertical vent holes 36 connected to the countersunk hole 35 are formed on the transition surface 33 around the boss 34. The support column 4 is formed with a vent channel 41 that penetrates the bottom end of the support column 4. The upper part of the vent channel 41 is located in the countersunk hole 35 of the connecting column 3 and is formed with a connecting hole 42 connected to the countersunk hole 35. A sealing plug 7 is screwed to the bottom end of the vent channel 41. A limiting sleeve 20 is inserted and fixed on the support column 4 on the lower side of the reinforcing bracket 2. The limiting sleeve 20 abuts against the central plate 21.

[0023] The two cavities 11 of the outer shell 1 are fixedly connected together by circumferential welding, and the outer shell 1 is filled with water.

[0024] The support rod 22 is uniformly arranged in a ring around the central axis of the central disk 21, and the central axis of the central disk 21, the central axis of the support column 4, and the central axis of the connecting column 3 are on the same straight line.

[0025] An annular sealing ring 10 is fixed to the lower end face of the connecting column 3 around the countersunk hole 35. The sealing ring 10 presses against the central plate 21, and the sealing effect is enhanced by the sealing ring 10.

[0026] The support rods 22 are provided with at least four rods, which are evenly distributed in a ring around the central axis of the central disk 21.

[0027] The bottom of the exhaust channel 41 on the support column 4 is formed with an enlarged hole 43. The sealing plug 7 is screwed into the enlarged hole 43. A lower sealing gasket 9 is clamped and fixed between the bottom surface of the enlarged hole 43 and the sealing plug 7. The lower sealing gasket 9 also improves the seal and prevents water leakage.

[0028] An upper sealing washer 8 is inserted into the stepped hole 31 of the connecting column 3. The upper sealing washer 8 is sandwiched between the stepped surface of the stepped hole 31 and the connector 5. The upper sealing washer 8 operates on the same principle as described above.

[0029] The exhaust port 36 is provided in three parts, and the exhaust ports 36 are evenly distributed in a ring around the central axis of the connecting column 3. The upper end of the exhaust port 36 is located above the water inlet port 32.

[0030] Working principle: This structure is a lightweight prop ball for film and television. The main body of the prop ball is the outer shell 1. The outer shell 1 is reinforced with a support bracket 2, a support column 4 and a connecting column 3 to strengthen the ball. At the same time, the connector 5 is connected to the connecting column 3. The connector 5 is used to install the chain. The installation strength with the chain is high, and the ball is not easy to detach from the chain.

[0031] Meanwhile, by removing the sealing plug 7 and opening the connector 5, water can be injected into the stepped hole 31 of the connecting column 3. The water flows into the outer shell 1 from the water inlet hole 32, while the air inside the outer shell 1 is discharged from the vent hole 36, the connecting hole 42 and the vent channel 41. Water injection is convenient. Finally, the connector 5 and the sealing plug 7 are tightened.

[0032] The embodiments described above are illustrative of the present invention and are not intended to limit the present invention. Any person skilled in the art can modify the embodiments without departing from the spirit and scope of the present invention; therefore, the scope of protection of the present invention should be as set forth in the claims.

Claims

1. A light-weighted prop football for film and television, comprising a spherical shell (1) composed of two upper and lower hemispherical cavities (11), characterized in that: Two reinforcing supports (2) are respectively arranged in the two cavities (11) of the outer shell (1), the reinforcing supports (2) comprise annular center plates (21), the two center plates (21) abut against each other, and the outer edges of the center plates (21) are formed with a plurality of obliquely arranged supporting rods (22), the outer ends of the supporting rods (22) are respectively welded and fixed on the inner walls of the cavities (11); A vertical supporting column (4) is fixedly connected at the bottom of the outer shell (1), the bottom end of the supporting column (4) is spherical and located in the same spherical surface as the outer wall of the outer shell (1), the top end of the supporting column (4) penetrates the two center plates (21) and is fixedly connected in a cylindrical connecting column (3), the top of the connecting column (3) is formed with a conical transition surface (33), the middle of the transition surface (33) is formed with a cylindrical boss (34), the boss (34) is fixedly connected at the top of the outer shell (1), the upper end surface of the boss (34) is formed with a stepped hole (31) extending into the connecting column (3), the bottom end of the stepped hole (31) is formed with a water inlet hole (32) penetrating the outer wall of the connecting column (3), the top of the stepped hole (31) is screwed with a T-shaped connector (5), and the upper part of the connector (5) is formed with a U-shaped connecting buckle (6). The bottom end of the connecting column (3) abuts against the center plate (21) and is formed with a circular counterbore (35), and the transition surface (33) around the boss (34) is formed with a plurality of vertical exhaust holes (36) in communication with the counterbore (35); the supporting column (4) is formed with an exhaust passage (41) penetrating the bottom end of the supporting column (4), the upper part of the exhaust passage (41) is located in the counterbore (35) of the connecting column (3) and is formed with a communication hole (42) in communication with the counterbore (35), and the bottom end of the exhaust passage (41) is screwed with a sealing plug (7); the supporting column (4) on the lower side of the reinforcing support (2) is sleeved with a limiting sleeve (20), and the limiting sleeve (20) abuts against the center plate (21); The two cavities (11) of the outer shell (1) are fixedly connected by ring welding, and the outer shell (1) is filled with water.

2. The lightweight prop soccer ball of claim 1, wherein: The supporting rods (22) are annularly and uniformly distributed around the central axis of the center plate (21), and the central axes of the center plate (21), the supporting column (4) and the connecting column (3) are on the same straight line.

3. The lightweight prop soccer ball of claim 1, wherein: The lower end surface of the connecting column (3) around the counterbore (35) is fixedly connected with an annular sealing ring (10), and the sealing ring (10) abuts against the center plate (21).

4. The lightweight prop soccer ball of claim 2, wherein: The supporting rods (22) are annularly and uniformly distributed around the central axis of the center plate (21).

5. The lightweight prop soccer ball of claim 1, wherein: The bottom of the exhaust passage (41) of the supporting column (4) is formed with an expansion hole (43), the sealing plug (7) is screwed in the expansion hole (43), and a lower sealing washer (9) is clamped and fixed between the bottom surface of the expansion hole (43) and the sealing plug (7).

6. The lightweight prop soccer ball of claim 1, wherein: The stepped hole (31) of the connecting column (3) is sleeved with an upper sealing washer (8), and the upper sealing washer (8) is clamped between the stepped surface of the stepped hole (31) and the connector (5).

7. The lightweight prop soccer ball of claim 2, wherein: The exhaust holes (36) are three, and the exhaust holes (36) are uniformly distributed in a ring around the central axis of the connecting column (3), and the upper end of the exhaust hole (36) is located above the water inlet hole (32).

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