CN110652713B

CN110652713B - Boomerang for outdoor exercises

Info

Publication number: CN110652713B
Application number: CN201910942283.4A
Authority: CN
Inventors: 黄永良; 傅纪良
Original assignee: Zhejiang Ocean University ZJOU
Current assignee: Zhejiang Ocean University ZJOU
Priority date: 2019-09-30
Filing date: 2019-09-30
Publication date: 2021-02-19
Anticipated expiration: 2039-09-30
Also published as: CN110652713A

Abstract

The invention provides a boomerang for outdoor sports, and belongs to the technical field of outdoor sports equipment. The boomerang device solves the technical problems of single function, low interest and the like of the boomerang. This dartlike weapon that circles round for outdoor exercises is including the dartlike weapon main part that circles round, the dartlike weapon main part that circles round includes left wing and right wing, the tip butt joint of left wing and right wing just forms the V font, the side of going up of left wing and right wing is the plane, be equipped with on the side of going up of left wing and can be at gliding slider one around the left wing upper surface, be equipped with on the side of going up of right wing and can be at gliding slider two around the wing upper surface, slider one sets firmly rack one and rack two respectively on the relative terminal surface of slider two, be equipped with the turning gear between rack one and the rack two, the gear shaft has set firmly in the center of turning gear, the lower extreme of gear shaft passes the dartlike weapon main part that circles round and extends to dartlike weapon main part below that. The boomerang in the invention has multiple functions, and the interest of the boomerang is increased.

Description

Boomerang for outdoor exercises

Technical Field

The invention belongs to the technical field of outdoor sports equipment, and relates to a boomerang for outdoor sports.

Background

Boomerang, also called a power target, is one of ancient hunting tools, manufactured by hardwoods the earliest times in australia, which were used to catch small animals; the boomerang flies according to the arc orbit after being thrown out, and if the boomerang does not hit the target object, the direction of the boomerang can be changed again and the boomerang returns to the hand of the original holder.

Chinese patent (publication number: CN 201658804U; publication date: 2010-12-01) discloses a boomerang with a circle, which comprises a solid keel made of hard material and a coating body made of soft material, wherein the coating body is coated outside the keel; the shape of the keel is matched with that of the boomerang; the cladding body is made of polyurethane formed by foaming, and the keel is made of polyethylene plastic.

The boomerang disclosed in the above patent documents has a single function, so that people feel that the sport of throwing the boomerang is not very interesting.

Disclosure of Invention

Aiming at the problems in the prior art, the invention provides a boomerang for outdoor sports, and the technical problems to be solved by the invention are as follows: how to increase the interest of throwing the boomerang.

The purpose of the invention can be realized by the following technical scheme:

the boomerang for outdoor sports comprises a boomerang body and is characterized in that the boomerang body comprises a left wing and a right wing, the ends of the left wing and the right wing are butted to form a V shape, the upper side surfaces of the left wing and the right wing are both planes, the lower side surfaces of the left wing and the right wing are both inclined planes, and the thicknesses of the left wing and the right wing are gradually increased from the outer end to the butted end; the upper side surface of the left wing is provided with a first sliding block along the length direction of the left wing, the width of the first sliding block is smaller than that of the left wing, and the first sliding block can slide back and forth on the upper side surface of the left wing; a second sliding block is arranged on the upper side surface of the right wing along the length direction of the right wing, the width of the second sliding block is smaller than that of the right wing, and the second sliding block can slide back and forth on the upper side surface of the right wing; a first rack and a second rack are fixedly arranged on the opposite end surfaces of the first sliding block and the second sliding block respectively, the first rack and the second rack are arranged in parallel at intervals, a rotating gear which is meshed with the first rack and the second rack simultaneously is arranged between the first rack and the second rack, a gear shaft is fixedly arranged at the center of the rotating gear, the lower end of the gear shaft penetrates through the boomerang body to extend to the lower part of the boomerang body, and the gear shaft can move up and down in the boomerang body; the gear shaft is provided with a fastener capable of fixing the rotating gear on the boomerang body.

The working principle is as follows: according to the boomerang for outdoor exercises in the technical scheme, when the rotating gear is located between the first rack and the second rack and is meshed with the first rack and the second rack, the gear shaft is rotated clockwise, the rotating gear rotates clockwise to enable the first sliding block to slide forwards on the left wing, the second sliding block slides backwards on the right wing, when the front side of the first sliding block is flush with the front side of the left wing, the rear side of the second sliding block is flush with the rear side of the right wing, and the fastener is screwed; or the gear shaft is rotated anticlockwise, the rotating gear rotates anticlockwise to enable the first sliding block to slide backwards on the left wing, the second sliding block to slide forwards on the right wing, the rear side of the first sliding block is flush with the rear side of the left wing, and when the front side of the second sliding block is flush with the front side of the right wing, the fastening piece is screwed, and people can adjust the boomerang according to own preferences; loosening the fastening piece and moving the gear shaft upwards, wherein the rotating gear can be separated from the first rack and the second rack, the first sliding block and the second sliding block can slide forwards on the left wing and the right wing respectively, when the front side of the first sliding block is flush with the front side of the left wing and the front side of the second sliding block is flush with the front side of the right wing, the rotating gear is moved downwards to a position between the first rack and the second rack and is meshed with the first gear and the second gear simultaneously, and the fastening piece is screwed, so that the airplane model is formed; this dart that circles round for outdoor exercises can oneself change the thickness of dartlike weapon main part front end face, and the dartlike weapon that will circle round is debugged into the thick rear end of left wing front end and is thin, the thick front end of right wing rear end is thin or debugs into the thick rear end of right wing front end and is thin, the thick front end of left wing rear end and thin according to own hobby, also can change the dart that circles round into aircraft model and use, has increased the function of the dart that circles round, makes the interest of throwing this outdoor exercises of the dart that circles round obtain improving.

In foretell outdoor sports dartlike weapon, be equipped with downward convex guide block one on the downside of slider one, be equipped with downward convex guide block two on the downside of slider two, the side of going up of left wing is equipped with the confession guide block one inlays the spout one of establishing, the side of going up of right wing is equipped with the confession guide block two inlays the spout two of establishing, guide block one and guide block two are rectangular shape, the length direction of guide block one, guide block two, spout one and spout two all with the axis direction of dartlike weapon that circles round the axis direction of main part parallels. The first guide block, the first sliding groove, the second guide block and the second sliding groove are arranged, so that the motion track of the first sliding block on the left wing and the motion track of the second sliding block on the right wing can be determined, and the first sliding block and the second sliding block can slide on the left wing and the right wing smoothly.

In the above boomerang for outdoor sports, the upper end of the gear shaft is inserted into the rotary gear and located above the boomerang body, the lower end of the gear shaft is located below the boomerang body and provided with threads on the outer peripheral surface of the end, and the fastening piece is a fixing nut screwed on the threads of the gear shaft. The arrangement of the screw thread on the gear shaft and the nut screwed on the gear shaft facilitates the refitting of the boomerang into an airplane model; after the airplane model is refitted, the lower end of the gear shaft is pinched by hand to throw the airplane model.

In the boomerang for outdoor sports, the lower side surface of the boomerang body is provided with a groove for the fastener to be embedded, the boomerang body is provided with a through hole communicated with the center of the groove, and the gear shaft is inserted into the through hole and can move up and down in the through hole. The boomerang body is provided with a groove in which the fastener is embedded, so that the fastener is prevented from influencing the flight performance of the boomerang or the airplane model.

In the boomerang for outdoor sports, the longitudinal sections of the first sliding block and the second sliding block are both semicircular, the lower side surface of the first sliding block abuts against the upper side surface of the left wing, and the lower side surface of the second sliding block abuts against the upper side surface of the right wing. The flight performance of the boomerang and the airplane model modified by the boomerang is improved.

In the boomerang for outdoor sports, the left wing and the right wing are both provided with an elastic film, two sides of the elastic film are respectively connected with the front side and the rear side of the left wing and/or the right wing, and the first slide block and the second slide block are located in the corresponding elastic films. The elastic film is arranged, so that the first sliding block and the second sliding block are in smooth transition with the boomerang body, and the boomerang or an airplane model modified by the boomerang is better in pneumatic performance.

In the boomerang for outdoor sports, a clamping groove is formed in the joint of the left wing and the right wing of the boomerang body, a motor, a power supply and a control circuit are arranged in the clamping groove, and a propeller is connected to an output shaft of the motor. Set up the draw-in groove on the dartlike weapon main part that circles round, can place motor, power, control circuit in the draw-in groove and the screw that links to each other with the output shaft of motor, can be according to hobby at any time with aircraft model transformation be electronic aircraft model, increase the interest.

In the boomerang for outdoor sports, the number of the first guide blocks is two, the two first guide blocks are arranged on the lower side surface of the sliding block at intervals in parallel and close to two ends, and the number of the first sliding chutes on the upper side surface of the left wing is two and corresponds to the number of the first guide blocks one by one; the two guide blocks are arranged at the positions, close to the two ends, of the two lower side faces of the sliding blocks at intervals, and the two sliding chutes on the upper side face of the right wing are also two and correspond to the two guide blocks one to one. The first sliding block is enabled to move forwards and backwards on the left wing and the second sliding block is enabled to move backwards and forwards on the right wing, and the flying performance of the boomerang or an airplane model or an electric airplane model transformed by the boomerang can be improved.

Compared with the prior art, the invention has the following advantages:

1. the first sliding block and the second sliding block are arranged on the body of the boomerang in the invention, and the sliding energy of the first sliding block and the second sliding block on the body of the boomerang enables the thicknesses of the front end surfaces of the left wing and the right wing of the boomerang to be changed, so that the thicknesses of the front ends of the left wing and the right wing of the boomerang can be automatically adjusted by a user, the boomerang can be refitted into an airplane model, the function of the boomerang is increased, and the interest of the boomerang in motion is improved.

2. After the boomerang is refitted into an airplane model, a motor, a power supply, a control circuit and a propeller can be arranged in a clamping groove of the boomerang body, the airplane model is refitted into an electric airplane model, the function of the boomerang is added, and the interestingness of the movement of the boomerang is improved.

Drawings

Fig. 1 is a first schematic structural view of the boomerang for outdoor sports.

Fig. 2 is a schematic structural view of the boomerang for outdoor sports.

Fig. 3 is a schematic structural view three of the boomerang for outdoor sports.

Fig. 4 is a schematic structural view of an airplane model modified from a boomerang for outdoor sports.

Fig. 5 is a cross-sectional view of fig. 4.

Fig. 6 is a schematic structural view of the rotating gear in fig. 5 separated from the first rack and the second rack.

Fig. 7 is a schematic structural view of an electric airplane model modified from an airplane model in the boomerang for outdoor sports.

Fig. 8 is a first sectional view of the elastic film on the left wing in the boomerang for outdoor sports.

Fig. 9 is a second sectional view of the elastic film on the left wing in the boomerang for outdoor sports.

In the figure, 1, a boomerang body; 11. a left wing; 11a, a first sliding chute; 12. a right wing; 12a, a second chute; 13. a groove; 14. a through hole; 15. a card slot; 2. a first sliding block; 21. a first guide block; 3. a second sliding block; 31. a second guide block; 4. a first rack; 5. a second rack; 6. a rotating gear; 7. a gear shaft; 71. a thread; 8. a fastener; 9. an elastic film; 10. a propeller.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.

As shown in fig. 1 to 6, the boomerang for outdoor sports in this embodiment includes a boomerang body 1, the boomerang body 1 includes a left wing 11 and a right wing 12, ends of the left wing 11 and the right wing 12 are butted and form a V shape, upper sides of the left wing 11 and the right wing 12 are both flat and lower sides are both inclined, thicknesses of the left wing 11 and the right wing 12 are both gradually increased from an outer end to a butted end, a first slider 2 along a length direction of the left wing 11 is disposed on the upper side of the left wing 11, a second slider 3 along a length direction of the right wing 12 is disposed on the upper side of the right wing 12, the first slider 2 can slide along the length direction of the left wing 11, a width of the first slider 2 is smaller than a width of the left wing 11, the second slider 3 can slide back and forth along the length direction of the right wing 12 on the right wing 12, a width of the second slider 3 is smaller than a width of the right wing 12, two first guide blocks 21 protruding downward are disposed, the two guide blocks I21 are arranged on the lower side surface of the sliding block I2 close to two ends at intervals in parallel, the upper side surface of the left wing 11 is provided with a sliding groove I11 a used for embedding the two guide blocks I21 respectively, the lower side surface of the right wing 12 is provided with two guide blocks II 31 protruding downwards, the two guide blocks II 31 are arranged on the lower side surface of the sliding block II 3 close to two ends at intervals in parallel, the upper side surface of the right wing 12 is provided with a sliding groove II 12a used for embedding the two guide blocks II 31 respectively, the guide blocks I21 and the guide blocks II 31 are in a long strip shape, the length directions of the guide blocks I21, the sliding groove I11 a, the guide blocks II 31 and the sliding groove II 12a are all parallel to the direction of the central axis of the boomerang main body 1, the opposite end surfaces of the sliding block I2 and the sliding block II 3 are respectively and fixedly provided with a rack I4 and a rack II 5, a rotating gear 6 is arranged between the rack I4 and the rack, a gear shaft 7 is fixedly arranged at the center of the rotating gear 6, the lower end of the gear shaft 7 penetrates through the boomerang body 1 and is positioned below the boomerang body 1, threads 71 are arranged on the outer peripheral surface of the lower end of the gear shaft 7, and a fastening piece 8 capable of fixing the rotating gear 6 on the boomerang body 1 is arranged on the threads 71 of the gear shaft 7.

Further, as shown in fig. 5 and 6, a groove 13 for the fastening member 8 to be inserted is formed on the lower side surface of the boomerang body 1, a through hole 14 communicated with the center of the groove 13 is further formed on the boomerang body 1, the gear shaft 7 is inserted into the through hole 14 and can move up and down in the through hole 14, the upper end of the gear shaft 7 is inserted into the rotating gear 6 and located above the boomerang body 1, and the fastening member 8 is a fixing nut screwed on the thread 71 on the outer peripheral surface of the lower end of the gear shaft 7.

Further, as shown in fig. 1 to 3, 8 and 9, the longitudinal sections of the first slider 2 and the second slider 3 are semicircular, the lower side surface of the first slider 2 abuts against the upper side surface of the left wing 11, the lower side surface of the second slider 3 abuts against the upper side surface of the right wing 12, the left wing 11 and the right wing 12 are both provided with an elastic membrane 9, the elastic membrane 9 above the left wing 11 abuts against the upper side surface of the first slider 2, two sides of the elastic membrane 9 above the left wing 11 are respectively connected with the front side and the rear side of the left wing 11, the elastic membrane 9 above the right wing 12 abuts against the upper side surface of the second slider 3, and two sides of the elastic membrane 9 above the right wing 12 are respectively connected with the front side and the rear side of the right wing 12.

Further, as shown in fig. 7, a clamping groove 15 is provided at an included angle between the left wing 11 and the right wing 12, a motor is provided in the clamping groove 15, a propeller 10 is connected to an output shaft of the motor, and a power supply and a control circuit are provided in the clamping groove 15.

The rotating gear 6 is meshed with the first rack 4 and the second rack 5 simultaneously, the fixing nut on the gear shaft 7 is screwed out, the gear shaft 7 is rotated clockwise, the first slider 2 slides forwards on the left wing 11, the second slider 3 slides backwards on the right wing 12, when the first slider 2 slides forwards until the front side of the first slider 2 is flush with the front side of the first left wing 11, the second slider 3 slides backwards until the rear side of the second slider 3 is flush with the rear side of the second left wing 11, or the gear shaft 7 is rotated anticlockwise, the first slider 2 slides backwards on the left wing 11, the second slider 3 slides forwards on the right wing 12, when the first slider 2 slides backwards until the rear side of the first slider 2 is flush with the rear side of the first left wing 11, the second slider 3 slides forwards until the front side of the second slider 3 is flush with the front side of the second left wing 11, the fixing nut is screwed in, the rotating gear 6 is fixed on the dart body 1, and people can independently select left according to needs, The front end thickness of the right wing; screwing out the fixing nut on the gear shaft 7 to enable the gear shaft 7 to move upwards to be separated from the first rack 4 and the second rack 5, enabling the first slider 2 and the second slider 3 to simultaneously slide forwards on the upper side surface of the boomerang body 1, moving the gear shaft 7 downwards to enable the rotating gear 6 to be simultaneously meshed with the first rack 4 and the second rack 5 when the front side of the first slider 2 is flush with the front side of the left wing 11 and the front side of the second slider 3 is flush with the front side of the right wing 12, screwing in the fixing nut to fix the rotating gear 6 on the boomerang body 1, so that the boomerang is transformed into an airplane model, and the lower end of the gear shaft 7 is pinched forwards by hands to throw the airplane model forwards, so that the airplane model can fly, a clamping groove 15 is arranged at the included angle of the boomerang body 1, a motor, a power supply and a control circuit are arranged in the clamping groove 15, a propeller 10 is connected to an output, the functions of the boomerang become more, and the interest of throwing the boomerang is increased.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.

Claims

1. The boomerang for outdoor sports comprises a boomerang body (1) and is characterized in that the boomerang body (1) comprises a left wing (11) and a right wing (12), the ends of the left wing (11) and the right wing (12) are butted to form a V shape, the upper sides of the left wing (11) and the right wing (12) are both planes, the lower sides of the left wing (11) and the right wing (12) are both inclined planes, and the thicknesses of the left wing (11) and the right wing (12) are gradually increased from the outer end to the butted end; a first sliding block (2) is arranged on the upper side surface of the left wing (11) along the length direction of the left wing (11), the width of the first sliding block (2) is smaller than that of the left wing (11), and the first sliding block (2) can slide back and forth on the upper side surface of the left wing (11); a second sliding block (3) is arranged on the upper side surface of the right wing (12) along the length direction of the right wing (12), the width of the second sliding block (3) is smaller than that of the right wing (12), and the second sliding block (3) can slide back and forth on the upper side surface of the right wing (12); a first rack (4) and a second rack (5) are fixedly arranged on the opposite end faces of the first sliding block (2) and the second sliding block (3) respectively, the first rack (4) and the second rack (5) are arranged in parallel at intervals, a rotating gear (6) which is meshed with the first rack (4) and the second rack (5) is arranged between the first rack (4) and the second rack (5), a gear shaft (7) is fixedly arranged at the center of the rotating gear (6), the lower end of the gear shaft (7) penetrates through the boomerang body (1) to extend to the lower side of the boomerang body (1) in a rotating mode, and the gear shaft (7) can move up and down in the boomerang body (1) in a rotating; the gear shaft (7) is provided with a fastener (8) capable of fixing the rotating gear (6) on the boomerang body (1); all be equipped with elastic membrane (9) on left wing (11) and right wing (12), the both sides of elastic membrane (9) are connected respectively the front and back both sides of left wing (11) and/or right wing (12), slider one (2) and slider two (3) are located the correspondence in elastic membrane (9).

2. The boomerang for outdoor sports according to claim 1, wherein a first guide block (21) protruding downwards is arranged on the lower side surface of the first slide block (2), a second guide block (31) protruding downwards is arranged on the lower side surface of the second slide block (3), a first chute (11a) for embedding the first guide block (21) is arranged on the upper side surface of the left wing (11), a second chute (12a) for embedding the second guide block (31) is arranged on the upper side surface of the right wing (12), the first guide block (21) and the second guide block (31) are in a long strip shape, and the length directions of the first guide block (21), the second guide block (31), the first chute (11a) and the second chute (12a) are all parallel to the central axis direction of the boomerang main body (1).

3. The boomerang for outdoor sports according to claim 2, characterized in that the upper end of the gear shaft (7) is inserted in the rotating gear (6) and above the boomerang body (1), the lower end of the gear shaft (7) is below the boomerang body (1) and the outer circumference of the end is provided with a thread (71), and the fastening member (8) is a fixing nut screwed on the thread (71) of the gear shaft (7).

4. The boomerang for outdoor sports according to claim 3, characterized in that the lower side of said boomerang body (1) is provided with a groove (13) for said fastening member (8) to be embedded in, said boomerang body (1) is provided with a through hole (14) communicating with the center of said groove (13), said gear shaft (7) is inserted in said through hole (14) and can move up and down in said through hole (14).

5. The boomerang for outdoor sports according to claim 4, characterized in that the longitudinal section of said first slider (2) and said second slider (3) are semicircular, the lower side of said first slider (2) abuts against the upper side of said left wing (11), and the lower side of said second slider (3) abuts against the upper side of said right wing (12).

6. The boomerang for outdoor sports according to claim 4, characterized in that a slot (15) is arranged on the boomerang body (1) at the joint of the left wing (11) and the right wing (12), a motor, a power supply and a control circuit are arranged in the slot (15), and a propeller (10) is connected to the output shaft of the motor.

7. The boomerang for outdoor sports according to claim 2, characterized in that, there are two first guide blocks (21), two first guide blocks (21) are parallelly arranged at intervals at the lower side of the first slide block (2) near to the two ends, there are two first sliding slots (11a) on the upper side of the left wing (11) and corresponding to the first guide blocks (21); two guide block (31) are two, two the parallel interval setting of two guide block (31) is in the position that two (3) downside of slider are close to both ends, two spout (12a) of right wing (12) upper flank also are two and with two (31) one-to-one of guide block.