CN105597290A - Table tennis racket with safety performance and machining method thereof - Google Patents

Abstract

The invention relates to a table tennis racket with safety performance. The table tennis racket comprises a first face plate, a second face plate, a handle and an anti-collision structure. The first face plate and the second face plate are combined and spliced into a closed space. The handle is arranged on one side of the first face plate and the second face plate. The anti-collision structure is arranged in the closed space between the first face plate and the second face plate and comprises an ignition cavity, a fire transfer cavity, a gas generation cavity and a gas bag. The table tennis racket has the advantages that gas is generated through the anti-collision structure, the table tennis racket is automatically changed into a balloon after slipping out of the hand, and people can be effectively prevented from being hurt when the racket slips out of the hand. The invention further discloses a machining method of the table tennis racket.

Description

A table tennis racket with safety performance and its processing method

technical field

The invention relates to a table tennis racket with safety performance and a processing method thereof.

Background technique

Existing utility model patent, its publication number is: CN203017705U, this utility model discloses a kind of bandage type anti-dropping table tennis racket, it is made of racket bottom plate, handle hook, wrist strap, anti-off wrist ring, racket handle , the handle hook is a metal hook design added to the traditional racket handle; the wrist strap is a soft and strong strap that connects the racket handle and the anti-off wrist ring, one end is connected to the handle hook, and the other end is connected to the anti-off Wrist loop; the anti-off wrist loop is composed of soft and strong Velcro straps, which are moderately elastic around the wrist, so that it cannot fall off but does not affect the wrist movement.

Although the above-mentioned utility model patent can solve the technical problem that the table tennis racket falls off, the anti-off wrist ring makes the user feel uncomfortable, and the anti-off wrist ring easily hurts the wrist.

Contents of the invention

The technical problem to be solved by the present invention is to provide a table tennis racket with safety performance and its processing method, so as to solve the deficiencies in the prior art.

The technical solution of the present invention to solve the above-mentioned technical problems is as follows: a table tennis racket with safety performance, which includes a first panel, a second panel, a handle and an anti-collision structure; the first panel is arranged above the second panel, and the first panel A closed space combined with the second panel; the handle is arranged on one side of the first panel and the second panel; the anti-collision structure is arranged in the closed space between the first panel and the second panel; the anti-collision structure includes an ignition cavity, The fire transmission cavity, the gas production cavity, and the air bag; the air bag is set in a hollow pie-shaped structure; the ignition cavity, the fire transmission cavity, and the gas production cavity are set in the middle of the air bag, the fire transmission cavity is set in a ring structure, and the ignition cavity is set in the fire transmission cavity The middle part is wrapped by the fire transmission chamber, the gas production chamber is set as a ring structure, the fire transmission chamber is set in the middle of the gas production chamber and is wrapped by the gas production chamber; a first exhaust There is a second exhaust port between the fire transmission chamber and the gas production chamber, and a third exhaust port between the gas production chamber and the air bag; an ignition tube and an ignition powder arranged around the ignition tube are provided in the ignition chamber , the fire transmission chamber is provided with fire transmission gunpowder, and the gas production chamber is provided with gas production powder.

The beneficial effect of the present invention is that: the present invention generates gas through the anti-collision structure, so that the present invention automatically changes into a balloon after the hand is released, and can effectively prevent personnel from being damaged by the hand of the racket.

Further: the side of the first exhaust port close to the fire transmission chamber is provided with a first partition.

Further: a second partition is provided on the side of the second exhaust port close to the gas production chamber.

Further: the first exhaust port and the second exhaust port are set as counterbore.

Further: the diameter of the first exhaust port is smaller than the diameter of the second exhaust port and smaller than the diameter of the third exhaust port.

Further: a filter is also included; the filter is arranged in the gas production chamber and is arranged near the third exhaust port.

Further: It also includes an annular protrusion for clamping the filter.

Further: the particle diameter of the propagating powder is 2 to 4 times that of the gas-generating powder.

Further: the composition of the gas-generating medicine is 41% by mass of nitroguanidine, 38.45% by mass of ammonium nitrate, 9% by mass of potassium nitrate, 6.55% by mass of manganese dioxide, and 5% by mass of polyvinyl alcohol .

The present invention also discloses a processing method for the above-mentioned table tennis racket, which includes the following steps:

Step 1, process the ignition cavity, fire transmission cavity, and gas production cavity by casting, so that the ignition cavity, fire transmission cavity, and gas production cavity are integrally formed;

Step 2, respectively machining the first exhaust port, the second exhaust port and the third exhaust port along the radial direction;

Step 3, put the ignition tube into the ignition cavity through the first exhaust port, the second exhaust port, and the third exhaust port formed in step 2, then pour the ignition powder into the ignition cavity, and finally paste the first clapboard;

Step 4, through the second exhaust port and the third exhaust port formed in step 2, pour the fire transfer gunpowder into the fire transfer cavity, and then attach the second partition at last;

Step 5, pour the gas-generating medicine into the gas-generating chamber through the third exhaust port formed in step 2, and then finally inject it into the filter;

Step 6, finally encapsulating the structure completed in step 5 in the airbag;

Step 7, encapsulating the airbag completed in step 6 in the airtight space where the first panel and the second panel are merged, and finally fixing the handle.

Description of drawings

Fig. 1 is a structural representation of the present invention;

Fig. 2 is a sectional view of the present invention;

Fig. 3 is a sectional view in the vertical direction of the anti-collision structure in the present invention;

Fig. 4 is a cross-sectional view in the horizontal direction of the anti-collision structure of the present invention.

detailed description

The principles and features of the present invention are described below in conjunction with the accompanying drawings, and the examples given are only used to explain the present invention, and are not intended to limit the scope of the present invention.

As shown in Figure 1, Figure 2, Figure 3, and Figure 4, a table tennis racket with safety performance includes a first panel 1, a second panel 2, a handle 3 and an anti-collision structure 4; the first panel 1 is arranged on On the top of the second panel 2, the first panel 1 and the second panel 2 are combined into a closed space; the handle 3 is arranged on one side of the first panel 1 and the second panel 2; the anti-collision structure 4 is arranged on the first panel 1 and the second panel 2 In the closed space between the second panels 2; the anti-collision structure 4 includes an ignition cavity 41, a fire transmission cavity 42, a gas production cavity 43, and an air bag 44; the air bag 44 is set as a hollow cake-shaped structure; the ignition cavity 41, the fire transmission cavity 42. The gas generating chamber 43 is set in the middle of the airbag 44, the fire transmission chamber 42 is set in a ring structure, the ignition chamber 41 is set in the middle of the fire transmission cavity 42 and is wrapped by the fire transmission cavity 42, and the gas production cavity 43 is set in a ring structure , the fire transmission cavity 42 is arranged in the middle of the gas production cavity 43 and is wrapped by the gas production cavity 43; a first exhaust port 41.1 is arranged between the ignition cavity 41 and the fire transmission cavity 42, and the fire transmission cavity 42 and the gas production cavity 43 A second exhaust port 42.1 is provided between them, a third exhaust port 43.1 is provided between the gas-producing chamber 43 and the airbag 44; an ignition tube 41.3 and an ignition powder 41.2 arranged around the ignition tube 41.3 are arranged in the ignition chamber 41, Fire transmission chamber 42 is provided with fire transmission gunpowder 42.2, and gas production chamber 43 is provided with gas production powder 43.2. The diameter of the best ignition chamber 41: the diameter of the fire transmission chamber 42: the diameter of the gas production chamber 43: the diameter of the air bag 44=5.5:16.44:63.97:171.88, so that the structure of the present invention is simple and the gas production efficiency is high.

The present invention can adopt the mode of manual remote control to control ignition tube 41.3 to start automatically. In order to realize intelligent control, preferably also include a distance detection device, this distance detection device comprises a first positioning sensor and a second positioning sensor, the first positioning sensor is worn on the user, and the second positioning sensor is arranged in the ignition cavity 41, When the distance between the first positioning sensor and the second positioning sensor exceeds 1.5 meters to 2 meters, the ignition tube 41.3 starts automatically.

In order to facilitate processing, it is preferable that the diameter of the first exhaust port 41.1 is smaller than the diameter of the second exhaust port 42.1 and smaller than the diameter of the third exhaust port 43.1.

In order to isolate the medicine body in the ignition cavity 41, the fire transmission cavity 42, and the gas production cavity 43, it is best to be provided with a first partition near the first exhaust port 41.1 on the side of the fire transmission cavity 42; The side of the gas port 42.1 close to the gas generating chamber 43 is provided with a second partition. Further, in order to effectively improve the sticking effect of each partition (the first partition, the second partition), it is preferable to set the first exhaust port 41.1 and the second exhaust port 42.1 as counterbore, and the counterbore at this place is Composed of two holes, one large and one small, the first baffle is set in the big hole of the first exhaust port 41.1, the second baffle is set in the large hole of the second exhaust port 42.1, preferably the first row The diameter of the large hole of the gas port 41.1 is equal to the diameter of the small hole of the second exhaust port 42.1, which is convenient for processing the above-mentioned counterbore.

In order to reduce the pollution to the environment, it is preferable that the present invention further includes a filter 43.4; the filter 43.4 is arranged in the gas generating chamber 43 and is arranged near the third exhaust port 43.1. Preferably also includes an annular protrusion 43.3 for clamping the filter 43.4.

In order to increase the stability of the whole structure, it is preferable that the particle diameter of the propagating powder 42.2 is 2 times to 4 times that of the gas generating powder 43.2.

The gas-generating medicine 43.2 in the present invention is composed of 41% by mass of nitroguanidine, 38.45% by mass of ammonium nitrate, 9% by mass of potassium nitrate, 6.55% by mass of manganese dioxide, and 5% by mass of polyvinyl alcohol. %.

The present invention also discloses a processing method for the above-mentioned table tennis racket, which includes the following steps:

Step 1, the ignition cavity 41, the fire transmission cavity 42, and the gas production cavity 43 are processed by casting, so that the ignition cavity 41, the fire transmission cavity 42, and the gas production cavity 43 are integrally formed;

Step 2, respectively machining the first exhaust port 41.1, the second exhaust port 42.1, and the third exhaust port 43.1 in the radial direction;

Step 3, through the first exhaust port 41.1, the second exhaust port 42.1, and the third exhaust port 43.1 formed in step 2, put the ignition tube 41.3 into the ignition chamber 41, and then pour the ignition powder 41.2 into the ignition chamber 41 , and finally paste the first partition;

Step 4, through the second exhaust port 42.1 and the third exhaust port 43.1 formed in step 2, pour the fire-transfer powder 42.2 into the fire-transfer chamber 42, and then attach the second partition at last;

Step 5, through the third exhaust port 43.1 formed in step 2, pour the gas-generating medicine 43.2 into the gas-generating chamber 43, and then finally inject the filter 43.4;

Step 6, finally encapsulating the structure completed in step 5 in the airbag 44;

In step 7, the airbag 44 completed in step 6 is packaged in the airtight space where the first panel 1 and the second panel 2 are combined, and finally the handle 3 is fixed.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection of the present invention. within range.

Claims (10)

1. A table tennis racket with safety performance, characterized in that: comprising a first panel (1), a second panel (2), a handle (3) and an anti-collision structure (4); said first panel (1) It is arranged above the second panel (2), and the first panel (1) and the second panel (2) merge into a closed space; the handle (3) is arranged on the first panel ( 1) and one side of the second panel (2); the anti-collision structure (4) is arranged in the enclosed space between the first panel (1) and the second panel (2); The anti-collision structure (4) includes an ignition cavity (41), a fire transmission cavity (42), a gas production cavity (43), and an air bag (44); the air bag (44) is set as a hollow pie-shaped structure; the The ignition cavity (41), the fire transmission cavity (42), and the gas production cavity (43) are arranged in the middle part of the air bag (44), the fire transmission cavity (42) is set as an annular structure, and the ignition cavity (41) Set in the middle of the fire transmission chamber (42) and wrapped by the fire transmission chamber (42), the gas production chamber (43) is set as a ring structure, and the fire transmission chamber (42) is set in the The middle part of the gas production chamber (43) is wrapped by the gas production chamber (43); a first exhaust port (41.1) is provided between the ignition chamber (41) and the fire transfer chamber (42), A second exhaust port (42.1) is provided between the fire transmission chamber (42) and the gas production chamber (43), and a second exhaust port (42.1) is provided between the gas production chamber (43) and the air bag (44). Three exhaust ports (43.1); the ignition chamber (41) is provided with an ignition tube (41.3) and ignition powder (41.2) arranged around the ignition tube (41.3), and the fire transmission chamber (42) A fire spreading gunpowder (42.2) is provided, and a gas producing medicine (43.2) is arranged in the gas producing chamber (43). 2. A table tennis racket with safety performance according to claim 1, characterized in that: the side of the first exhaust port (41.1) close to the fire transmission chamber (42) is provided with a first partition. 3. A table tennis racket with safety performance according to claim 2, characterized in that: the side of the second exhaust port (42.1) close to the gas generating chamber (43) is provided with a second partition. 4. A table tennis racket with safety performance according to claim 3, characterized in that: the first exhaust port (41.1) and the second exhaust port (42.1) are set as counterbores. 5. A table tennis racket with safety performance according to claim 4, characterized in that: the diameter of the first exhaust port (41.1) is smaller than the diameter of the second exhaust port (42.1) and smaller than that of the first exhaust port (42.1). The diameter of the three exhaust ports (43.1). 6. A table tennis racket with safety performance according to claim 5, characterized in that: it also includes a filter (43.4); the filter (43.4) is arranged in the gas producing cavity (43), and Near the third exhaust port (43.1). 7. A table tennis racket with safety performance according to claim 6, further comprising an annular projection (43.3) for clamping the filter (43.4). 8. A table tennis racket with safety performance according to any one of claims 1 to 7, characterized in that: the particle diameter of the fire transfer powder (42.2) is 2 times to 4 times. 9. A table tennis racket with safety performance according to any one of claims 1 to 8, characterized in that: the gas-generating medicine (43.2) is composed of 41% of the mass content of nitroguanidine and 41% of the mass content of ammonium nitrate The mass content of potassium nitrate is 38.45%, the mass content of potassium nitrate is 9%, the mass content of manganese dioxide is 6.55%, and the mass content of polyvinyl alcohol is 5%. 10. A processing method for a table tennis racket as claimed in claim 9, comprising the steps of: Step 1, process the ignition cavity (41), fire transmission cavity (42), and gas production cavity (43) by casting, so that the ignition cavity (41), fire transmission cavity (42), and gas production cavity (43) The three are integrally formed; Step 2, respectively machining the first exhaust port (41.1), the second exhaust port (42.1), and the third exhaust port (43.1) in the radial direction; Step 3, put the ignition tube (41.3) into the In the ignition chamber (41), then pour the ignition powder (41.2) into the ignition chamber (41), and finally paste the first partition; Step 4, filling the fire transfer powder (42.2) into the fire transfer chamber (42) through the second exhaust port (42.1) and the third exhaust port (43.1) formed in the step 2 , and then finally affix said second partition; Step 5, pour the gas-generating drug (43.2) into the gas-generating cavity (43) through the third exhaust port (43.1) formed in the step 2, and then finally inject the filter ( 43.4); Step 6, finally encapsulating the structure completed in step 5 in the airbag (44); Step 7, encapsulating the airbag (44) completed in step 6 in the closed space where the first panel (1) and the second panel (2) are combined, and finally fixing the handle (3).