A pneumatic ballistic shock wave therapy device with an impact head buffer structure

Abstract

The present invention relates to a pneumatic ballistic shock wave therapy instrument with an impact head buffer structure, comprising a handle shell, a bullet body, an impact head and a shell front cover, wherein the shell front cover is arranged at the front end of the handle shell, the impact head is arranged in the shell front cover, the bullet body is arranged in the ballistics of the handle shell, and the impact head is impacted by compressed air driving, and a buffer structure is provided on the impact head, wherein the buffer structure comprises a buffer collar and at least two first O-rings, the buffer collar is sleeved on the impact head, and the buffer collar is provided with at least two first annular grooves around the circumferential direction of the impact head, and each first O-ring is sleeved on each first annular groove. The present invention enables the shock wave generated by the bullet body during operation to be transmitted to the impact head to the greatest extent; and the pressure of the bullet body is reduced by the buffer structure, thereby greatly improving the service life of the bullet body.

Description

Technical Field

[0001] The invention relates to a shock wave therapeutic device, in particular to a pneumatic ballistic shock wave therapeutic device with an impact head buffer structure. Background Art

[0002] Currently, the impact heads in the handles of pneumatic ballistic shock wave therapy devices on the market all use O-rings to seal the deformation.

[0003] When the equipment is working, when the bullet body hits the impact head, since the original design transmits the shock wave energy through the deformation and displacement of the O-ring, a large amount of energy will be absorbed by the bullet body and the O-ring, which will affect the life of the bullet body and the depth of the shock wave. Summary of the invention

[0004] The purpose of the present invention is to provide a pneumatic ballistic shock wave therapy device with an impact head buffer structure, so that the shock wave generated by the bullet body during operation can be transmitted to the impact head to the greatest extent; and the bullet body pressure is reduced by the buffer structure, thereby greatly improving the life of the bullet body.

[0005] The present invention is achieved in that:

[0006] A pneumatic ballistic shock wave therapy device with an impact head buffer structure comprises a handle shell, a bullet body, an impact head and a shell front cover, wherein the shell front cover is arranged at the front end of the handle shell, the impact head is arranged in the shell front cover, the bullet body is arranged in the ballistics of the handle shell, and is driven by compressed air to impact the impact head, and a buffer structure is provided on the impact head, the buffer structure comprises a buffer ring and at least two first O-rings, the buffer ring is sleeved on the impact head, and the buffer ring is provided with at least two first annular grooves around the circumferential direction of the impact head, and each first O-ring is respectively sleeved on each first annular groove.

[0007] With the above technical solution, the bullet body moves in the trajectory driven by compressed air to impact the impact head; the buffer ring with the first annular groove generates deformation buffering in stages according to the magnitude of the impact force, so that the maximum rebound displacement can be achieved. When the displacement reaches the maximum, the first O-ring will play a blocking role to prevent the impact head from rushing out of the shell front cover due to inertia. In addition, in addition to playing the role of blocking and limiting, the first O-ring also has a sealing function to prevent compressed air from leaking from the buffer ring.

[0008] As a further improvement of the present invention, it further comprises an adapter ring, the shell front cover is connected to the front end of the handle shell through the adapter ring, one end of the buffer ring is interference fit with the inside of the adapter ring, and the other end of the buffer ring is interference fit with the inside of the shell front cover. This technical solution is adopted to further prevent the impact head from rushing out of the shell front cover due to inertia after being impacted by the bullet body.

[0009] As a further improvement of the present invention, the number of the first annular grooves is two, and the two first annular grooves are parallel to each other. With this technical solution, the buffer ring is divided into a three-stage buffer structure due to having two first annular grooves parallel to each other. When deformed by impact, uniform deformation buffering is generated step by step, reducing the loss of the energy transfer process of the shock wave.

[0010] As a further improvement of the present invention, a circular opening is provided in the middle of the shell front cover, the front end radius and the rear end radius of the impact head are larger than the middle section, the front end portion of the impact head passes through the circular opening and is partially exposed outside the shell front cover, and the buffer collar is sleeved on the middle section of the impact head. Since the middle section of the impact head has the smallest radius, it is more stable to sleeve the buffer collar on the middle section.

[0011] As a further improvement of the present invention, the middle section of the impact head is sleeved with a second O-ring, the buffer collar is sleeved on the periphery of the second O-ring, and the inner side of the buffer collar is provided with a second annular groove that matches the periphery of the second O-ring. With this technical solution, the buffer collar has a larger rebound displacement when it is deformed.

[0012] As a further improvement of the present invention, the plane where the second annular groove is located is between the planes where the two first annular grooves are located. With this technical solution, when the buffer ring is deformed, uniform deformation buffering is generated step by step, reducing the loss of the energy transfer process of the shock wave.

[0013] As a further improvement of the present invention, the radius of the second annular groove is greater than that of the two first annular grooves.

[0014] As a further improvement of the present invention, the handle housing is further provided with a buffer air chamber for storing compressed air, the buffer air chamber comprises a first air chamber and a second air chamber, the first air chamber and the second air chamber are connected via a vent. The two-stage buffer air chamber makes the storage amount of compressed air more sufficient and the air pressure of the compressed air more stable.

[0015] Compared with the prior art, the beneficial effects of the present invention are: the shock wave generated by the bullet body during operation can be transmitted to the impact head to the greatest extent; and the pressure of the bullet body is reduced by the buffer structure, thereby greatly improving the life of the bullet body. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The present invention is a schematic diagram of the structure of a pneumatic ballistic shock wave therapy device with an impact head buffer structure.

[0017] Figure 2 It is an exploded view of a pneumatic ballistic shock wave therapy device with an impact head buffer structure.

[0018] Figure 3 yes Figure 1 Enlarged view of the dotted box area.

[0019] Figure 4 It is a structural schematic diagram of the buffer ring provided by the present invention.

[0020] Figure 5 yes Figure 4 Side view of.

[0021] Figure 6 It is a schematic structural diagram of the first O-ring provided by the present invention.

[0022] Description of the drawings: 1-handle shell, 2-bullet body, 3-impact head, 4-shell front cover, 5-buffer ring, 51-first annular groove, 52-second annular groove, 6-first O-ring, 7-adapter ring, 8-second O-ring, 9-buffer air chamber, 91-first air chamber, 92-second air chamber. DETAILED DESCRIPTION

[0023] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the present invention is further described below in conjunction with the accompanying drawings and specific embodiments.

[0024] Example 1

[0025] like Figure 1-6 A pneumatic ballistic shock wave therapy device with an impact head buffer structure is shown, comprising a handle shell 1, a bullet body 2, an impact head 3 and a shell front cover 4, wherein the shell front cover 4 is arranged at the front end of the handle shell 1, the impact head 3 is arranged in the shell front cover 4, the bullet body 2 is arranged in the ballistics of the handle shell 1, and is driven by compressed air to impact the impact head 3, a buffer structure is provided on the impact head 3, the buffer structure includes a buffer ring 5 and at least two first O-rings 6, the buffer ring 5 is sleeved on the impact head 3, the buffer ring 5 is provided with at least two first annular grooves 51 around the circumferential direction of the impact head 3, and each first O-ring 6 is respectively sleeved on each first annular groove 51.

[0026] The motion process of this embodiment 1 is as follows: Figure 1 As shown, in the first step: the bullet body 2 moves from right to left in the trajectory under the drive of compressed air, and when it reaches the position of the impact head, the bullet body 2 impacts the impact head.

[0027] Step 2: The buffer ring 5 with the first annular groove 51 generates deformation buffer in stages according to the magnitude of the impact force, so that the maximum rebound displacement can be achieved. When the displacement reaches the maximum, the first O-ring 6 will play a blocking role to prevent the impact head 3 from rushing out of the shell front cover 4 due to inertia.

[0028] In addition, the first O-ring 6 not only plays a role of blocking and limiting, but also has a sealing function to prevent compressed air from leaking from the buffer ring 5.

[0029] Example 2

[0030] Further, such as Figure 1 , Figure 2 As shown, it also includes an adapter ring 7, the shell front cover 4 is connected to the front end of the handle shell 1 through the adapter ring 7, one end of the buffer ring 5 is interference fit with the inside of the adapter ring 7, and the other end of the buffer ring 5 is interference fit with the inside of the shell front cover 4.

[0031] The above technical solution is adopted to further prevent the impact head 3 from rushing out of the shell front cover 4 due to inertia after being impacted by the bullet body 2.

[0032] Further, such as Figure 3-5 As shown, there are two first annular grooves 51 , and the two first annular grooves 51 are parallel to each other.

[0033] With this technical solution, the buffer ring 5 is divided into a three-section buffer structure due to the two mutually parallel first annular grooves 51. When deformed by impact, uniform deformation buffering is generated step by step, thereby reducing the loss of energy transfer process of shock wave.

[0034] Furthermore, a circular opening is provided in the middle of the shell front cover 4, the front end radius and the rear end radius of the impact head 3 are larger than the middle section, the front end portion of the impact head passes through the circular opening and is partially exposed outside the shell front cover 4, and the buffer collar 5 is sleeved on the middle section of the impact head 3. Since the middle section of the impact head has the smallest radius, it is more stable to sleeve the buffer collar 5 on the middle section.

[0035] Further, such as Figure 4 As shown, the middle section of the impact head 3 is sleeved with a second O-ring 8 , the buffer ring 5 is sleeved on the periphery of the second O-ring 8 , and the inner side of the buffer ring 5 is provided with a second annular groove 52 that matches the periphery of the second O-ring 8 .

[0036] By adopting the above technical solution, grooves are provided on the inner and outer sides of the buffer ring 5, so that the buffer ring has a larger rebound displacement when it is deformed.

[0037] Furthermore, the plane where the second annular groove 52 is located is between the planes where the two first annular grooves 51 are located, and the radius of the second annular groove 52 is greater than that of the two first annular grooves 51 .

[0038] By adopting the above technical solution, when the buffer ring 5 is deformed, uniform deformation buffering is generated step by step, thereby reducing the loss of the energy transfer process of the shock wave.

[0039] By adopting the technical solution of Example 2, the shock wave generated by the bullet body 2 during operation can be transmitted to the impact head 3 to the greatest extent, reducing the loss of the shock wave energy transfer process; and the pressure of the bullet body 2 is reduced by the buffer structure, greatly improving the life of the bullet body 2.

[0040] Example 3

[0041] Based on Example 1, the storage mechanism of the compressed air can also be improved. Figure 1 As shown, the handle housing 1 is further provided with a buffer air chamber 9 for storing compressed air, and the buffer air chamber 9 includes a first air chamber 91 and a second air chamber 92, and the first air chamber 91 and the second air chamber 92 are connected through a vent.

[0042] The use of a two-stage buffer air chamber makes the storage capacity of compressed air more sufficient and the air pressure of the compressed air more stable.

[0043] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A pneumatic ballistic shock wave therapy device with an impact head buffer structure, comprising a handle shell (1), a bullet body (2), an impact head (3), a shell front cover (4) and an adapter ring (7), wherein the shell front cover (4) is connected to the front end of the handle shell (1) through the adapter ring (7), the shell front cover (4) is arranged at the front end of the handle shell (1), the impact head (3) is arranged in the shell front cover (4), the bullet body (2) is arranged in the ballistics of the handle shell (1), and the impact head (3) is impacted by compressed air, characterized in that: The impact head (3) is provided with a buffer structure, the buffer structure comprising a buffer ring (5) and at least two first O-rings (6), the buffer ring (5) is sleeved on the impact head, the buffer ring (5) is provided with at least two first annular grooves (51) around the circumference of the impact head (3), each first O-ring (6) is sleeved on each first annular groove (51), one end of the buffer ring (5) is interference fit with the inside of the adapter ring (7), There are two first annular grooves (51), and the two first annular grooves (51) are parallel to each other. The two first annular grooves (51) are arranged at intervals along the central axis of the buffer collar (5), and the distance between the bottom of the first annular groove (51) close to the side of the bullet body (2) and the central axis of the buffer collar (5) is smaller than the distance between the bottom of the other first annular groove (51) and the central axis of the buffer collar (5); The middle section of the impact head (3) is sleeved with a second O-ring (8); the buffer collar (5) is sleeved on the outer periphery of the second O-ring (8); the inner side of the buffer collar (5) is provided with a second annular groove (52) matching the outer periphery of the second O-ring (8); the plane where the second annular groove (52) is located is between the planes where the two first annular grooves (51) are located, and the radius of the second annular groove (52) is greater than that of the two first annular grooves (51); The other end of the buffer collar (5) is interference-fitted with the interior of the shell front cover (4); the handle shell (1) is also provided with a buffer air chamber (9) for storing compressed air, the buffer air chamber (9) comprising a first air chamber (91) and a second air chamber (92), the first air chamber (91) and the second air chamber (92) being connected via an air vent, and the two-stage buffer air chamber is adopted, so that the storage amount of compressed air is more sufficient and the air pressure of the compressed air is more stable.

2. The pneumatic ballistic shock wave therapy device with an impact head buffer structure according to claim 1, characterized in that: A circular opening is provided in the middle of the shell front cover (4); the front end radius and the rear end radius of the impact head (3) are larger than the middle section; the front end portion of the impact head (3) passes through the circular opening and is partially exposed outside the shell front cover (4); and the buffer collar (5) is sleeved on the middle section of the impact head (3).

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