CN111494923B

CN111494923B - Novel plastic environment-friendly EPDM (ethylene-propylene-diene monomer) site

Info

Publication number: CN111494923B
Application number: CN202010369928.2A
Authority: CN
Inventors: 陆海龙
Original assignee: Baoli Technology Ningguo Co Ltd
Current assignee: Baoli Technology Ningguo Co Ltd
Priority date: 2020-05-04
Filing date: 2020-05-04
Publication date: 2021-12-28
Anticipated expiration: 2040-05-04
Also published as: CN111494923A

Abstract

The invention discloses a novel plastic environment-friendly EPDM field, which comprises: a ground layer and a plastic layer made of EPDM particles; the plastic layer is laid on the surface of the foundation layer; the novel plastic environment-friendly EPDM field also comprises a built-in tennis frame which can be hidden in the foundation layer; the ground base layer is provided with an accommodating cavity for accommodating the built-in tennis frame; the built-in tennis frame includes: the device comprises a base, a lifting guide rod, a lifting seat, an electric push rod, a shell, a central roller for winding a net, a manual turntable, a net collecting motor and a driving gear; the lifting guide rod is fixed to the base; the lifting seat is provided with a bottom tray and a pipe shaft sleeve; the pipe shaft sleeve is connected to the middle part of the bottom tray; the pipe shaft sleeve is sleeved on the periphery of the lifting guide rod and slides along the lifting guide rod; the electric push rod is connected to the lifting seat to push the lifting seat to move up and down along the lifting guide rod; the center roller includes: the central shaft sleeve, the upper flange plate, the lower flange plate and the driven gear; the upper flange, the lower flange and the driven gear are fixed to the central shaft sleeve. The invention has the advantage of long service life.

Description

Novel plastic environment-friendly EPDM (ethylene-propylene-diene monomer) site

Technical Field

The invention relates to a novel plastic environment-friendly EPDM (ethylene-propylene-diene monomer) field, in particular to an EPDM tennis court.

Background

EPDM is called ethylene propylene diene monomer. Ethylene propylene diene rubber is a terpolymer of ethylene, propylene and a non-conjugated diene. EPDM has excellent environmental aging resistance, thermal aging resistance, ozone resistance, chemical medium resistance, water resistance and low temperature resistance, and is widely applied to the laying of fields such as runways, tennis courts, basketball courts and the like.

Tennis stands for tennis fields are commonly placed on the field with the net attached to the tennis stand. The tennis frame and the net are exposed on the field for a long time no matter whether the tennis frame and the net are used or not, and the service life is reduced.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention provides a novel plastic environment-friendly EPDM field, and the built-in tennis frame can be stored in a foundation layer when not used, so that the service life is effectively prolonged.

In order to achieve the above object, the present invention adopts the following technical solutions:

a novel plastic environmental protection EPDM field, comprising: a ground layer and a plastic layer made of EPDM particles; the plastic layer is laid on the surface of the foundation layer;

the novel plastic environment-friendly EPDM field also comprises a built-in tennis frame which can be hidden in the foundation layer; the ground base layer is provided with an accommodating cavity for accommodating the built-in tennis frame; the built-in tennis frame includes: the device comprises a base, a lifting guide rod, a lifting seat, an electric push rod, a shell, a central roller for winding a net, a manual turntable, a net collecting motor and a driving gear; the lifting guide rod is fixed to the base; the lifting seat is provided with a bottom tray and a pipe shaft sleeve; the pipe shaft sleeve is connected to the middle part of the bottom tray; the pipe shaft sleeve is sleeved on the periphery of the lifting guide rod and slides along the lifting guide rod; the electric push rod is connected to the lifting seat to push the lifting seat to move up and down along the lifting guide rod;

the center roller includes: the central shaft sleeve, the upper flange plate, the lower flange plate and the driven gear; the upper flange plate, the lower flange plate and the driven gear are fixed to the central shaft sleeve; the central shaft sleeve is sleeved on the periphery of the pipe shaft sleeve and rotates around the pipe shaft sleeve; the central shaft sleeve is used for winding a net; the upper flange plate and the lower flange plate are positioned on two sides of the net; the net collecting motor drives the driving gear to rotate; the driving gear drives the driven gear to rotate so as to enable the central roller to rotate to wind the ball recovery net; the shell surrounds the central roller; the shell is provided with a through hole for the ball net to penetrate out; the shell is fixed to the lifting seat; the central hub is connected to the manual turntable through the housing.

Further, an electric push rod is connected to the bottom of the bottom tray.

Further, an electric push rod is mounted to the base.

Further, net collecting motor is installed to the lifting seat.

Further, the driving gear is mounted to a motor shaft of the net retracting motor.

Further, the lower flange plate is positioned between the upper flange plate and the driven gear.

Further, the driven gear is located between the lower flange plate and the bottom tray.

Further, the diameter of the manual dial is the same as the diameter of the housing.

Furthermore, the number of the electric push rods is several; a plurality of electric push rods surround the lifting guide rod and are evenly distributed.

Furthermore, one end of the net is wound on the central shaft sleeve, and the other end of the net is provided with a connecting buckle.

The novel plastic environment-friendly EPDM field has the advantages that the EPDM material adopted in the novel plastic environment-friendly EPDM field has excellent ageing resistance and long service life. The built-in tennis frame in novel plastic environmental protection EPDM place can be accomodate in the ground bed when not using, effectively promotes life.

The electric push rod controls the lifting seat to lift so as to control the lifting of the net. The net collecting motor can drive the central roller to rotate so as to wind the recovered net. The ball net can be recovered by rotating a manual turntable by a user.

Drawings

FIG. 1 is a schematic view of a novel plastic environmentally friendly EPDM field of the present invention;

fig. 2 is a view showing the state of use of the built-in tennis frame of the novel plastic environment-friendly EPDM court in fig. 1.

The novel plastic environment-friendly EPDM field 100, the foundation layer 10, the containing cavity 11, the plastic layer 20, the built-in tennis frame 30, the base 31, the lifting guide rod 32, the lifting seat 33, the bottom tray 331, the pipe shaft sleeve 332, the electric push rod 34, the shell 35, the central roller 36, the central shaft sleeve 361, the upper flange 362, the lower flange 363, the driven gear 364, the manual rotating disc 37, the net collecting motor 38, the driving gear 39, the tennis net 40 and the connecting buckle 41.

Detailed Description

The invention is described in detail below with reference to the figures and the embodiments.

As shown in fig. 1 and 2, a novel plastic environment-friendly EPDM floor 100 includes: a ground layer 10 and a plastic layer 20 made of EPDM particles. The plastic layer 20 is laid on the surface of the foundation layer 10. The EPDM material has excellent ageing resistance and long service life.

The new plastic environment-friendly EPDM floor 100 also includes a built-in tennis frame 30 that can be hidden within the basement layer 10. The ground substrate 10 is formed with a receiving cavity 11 for receiving the built-in tennis racket 30.

The built-in tennis frame 30 includes: the device comprises a base 31, a lifting guide rod 32, a lifting seat 33, an electric push rod 34, a shell 35, a center roller 36 for winding a net 40, a manual rotating disc 37, a net collecting motor 38 and a driving gear 39.

The elevation guide bar 32 is fixed to the base 31. The elevating base 33 is provided with a bottom tray 331 and a boss 332. The boss 332 is coupled to a middle portion of the bottom tray 331. The pipe sleeve 332 is sleeved on the outer periphery of the lifting guide rod 32 and slides along the lifting guide rod 32. The electric push rod 34 is connected to the lifting base 33 to push the lifting base 33 to move up and down along the lifting guide rod 32.

The center roller 36 includes: a central hub 361, an upper flange 362, a lower flange 363 and a driven gear 364. The upper flange 362, the lower flange 363 and the driven gear 364 are fixed to the central hub 361. The central shaft sleeve 361 is fitted around the outer circumference of the pipe shaft sleeve 332 to rotate around the pipe shaft sleeve 332. The central hub 361 is used to wrap around the net 40. The upper and

lower flanges

362, 363 are located on opposite sides of the net 40. The net retracting motor 38 drives the driving gear 39 to rotate. The drive gear 39 rotates the driven gear 364 to rotate the center roller 36 to wrap around the recovery net 40. A shell 35 surrounds the central roller 36. The housing 35 is formed with a through hole through which the net 40 passes. The housing 35 is fixed to the elevating base 33. The central hub 361 is connected to the manual dial 37 through the housing 35.

When the built-in tennis racket 30 is not used, the built-in tennis racket 30 is received in the receiving chamber 11. When the built-in tennis frame 30 is needed, the lifting seat 33 is pushed by the electric push rod 34 to move upwards, so that the height of the central roller 36, namely the height of the lifted tennis net 40, is increased. When the net collecting motor 38 rotates forward, the driving gear 39 and the driven gear 364 can drive the central roller 36 to rotate for collecting the net so as to wind the net 40 onto the central roller 36. The net take-up motor 38 is reversed to release a length of net 40 and the user installs the net 40 by pulling the net 40. One end of the net 40 is wound around the center boss 361, and the other end of the net 40 is mounted with the coupling link 41. The two connecting buckles 41 are butted to realize the connection of the two ball nets 40. As an alternative embodiment, the net 40 may be connected by tying the two net halves 40 together or by other connecting structures. The user can rotate the manual rotating disc 37 to drive the central roller 36 to rotate to take up or release the net. The diameter of the manual rotating disc 37 is the same as that of the shell 35, and the manual rotating disc has a large arm force to facilitate the rotation of a user.

As a specific embodiment, an electric push rod 34 is connected to the bottom of the bottom tray 331. An electric pushrod 34 is mounted to the base 31. The net collecting motor 38 is mounted to the lifting base 33.

As a specific embodiment, the driving gear 39 is mounted to a motor shaft of the net retracting motor 38. The lower flange 363 is located between the upper flange 362 and the driven gear 364. The driven gear 364 is located between the lower flange 363 and the bottom tray 331. The number of the electric push rods 34 is several. A plurality of electric push rods 34 are uniformly distributed around the lifting guide rod 32, so that uneven stress on the lifting seat 33 is prevented.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It should be understood by those skilled in the art that the above embodiments do not limit the present invention in any way, and all technical solutions obtained by using equivalent alternatives or equivalent variations fall within the scope of the present invention.

Claims

1. A plastic environment-friendly EPDM field, comprising: a ground layer and a plastic layer made of EPDM particles; the plastic layer is laid on the surface of the foundation layer;

the plastic environment-friendly EPDM field is characterized by also comprising a built-in tennis frame which can be hidden in the foundation layer; the ground base layer is provided with an accommodating cavity for accommodating the built-in tennis frame; the built-in tennis frame comprises: the device comprises a base, a lifting guide rod, a lifting seat, an electric push rod, a shell, a central roller for winding a net, a manual turntable, a net collecting motor and a driving gear; the lifting guide rod is fixed to the base; the lifting seat is provided with a bottom tray and a pipe shaft sleeve; the pipe shaft sleeve is connected to the middle part of the bottom tray; the pipe shaft sleeve is sleeved on the periphery of the lifting guide rod and slides along the lifting guide rod; the electric push rod is connected to the lifting seat to push the lifting seat to move up and down along the lifting guide rod;

the center roller includes: the central shaft sleeve, the upper flange plate, the lower flange plate and the driven gear; the upper flange plate, the lower flange plate and the driven gear are fixed to the central shaft sleeve; the central shaft sleeve is sleeved on the periphery of the pipe shaft sleeve and rotates around the pipe shaft sleeve; the central shaft sleeve is used for winding a net; the upper flange plate and the lower flange plate are positioned on two sides of the ball net; the net collecting motor drives the driving gear to rotate; the driving gear drives the driven gear to rotate so as to enable the central roller to rotate to wind a recovery net; the shell surrounds the central roller; the shell is provided with a through hole for the ball net to penetrate out; the housing is fixed to the lifting seat; the central shaft sleeve penetrates through the outer shell and is connected to the manual rotary disc;

the diameter of the manual rotary disc is the same as that of the shell.

2. The plastic environmentally friendly EPDM floor according to claim 1, wherein said plastic environmentally friendly EPDM floor is characterized in that,

the electric push rod is connected to the bottom of the bottom tray.

3. The plastic environmentally friendly EPDM floor according to claim 1, wherein said plastic environmentally friendly EPDM floor is characterized in that,

the electric push rod is mounted to the base.

4. The plastic environmentally friendly EPDM floor according to claim 1, wherein said plastic environmentally friendly EPDM floor is characterized in that,

the net collecting motor is installed on the lifting seat.

5. The plastic environmentally friendly EPDM floor according to claim 1, wherein said plastic environmentally friendly EPDM floor is characterized in that,

the driving gear is mounted to a motor shaft of the net retracting motor.

6. The plastic environmentally friendly EPDM floor according to claim 1, wherein said plastic environmentally friendly EPDM floor is characterized in that,

the lower flange plate is positioned between the upper flange plate and the driven gear.

7. The plastic environmentally friendly EPDM floor according to claim 1, wherein said plastic environmentally friendly EPDM floor is characterized in that,

the driven gear is located between the lower flange plate and the bottom tray.

8. The plastic environmentally friendly EPDM floor according to claim 1, wherein said plastic environmentally friendly EPDM floor is characterized in that,

the number of the electric push rods is a plurality; the electric push rods are uniformly distributed around the lifting guide rod.

9. The plastic environmentally friendly EPDM floor according to claim 1, wherein said plastic environmentally friendly EPDM floor is characterized in that,

one end of the net is wound to the central shaft sleeve, and the other end of the net is provided with a connecting buckle.