Improved small piston assembly

Abstract

The utility model relates to the technical field of wind instrument accessories, in particular to an improved trumpet piston assembly which comprises a piston body installed on a trumpet. The piston body comprises a piston shell, a limiting piece in threaded connection with the bottom of the piston shell, a limiting ring arranged at the top of the piston shell, a piston inner sleeve arranged in the piston shell, a piston piece arranged in the piston inner sleeve, and a connecting rod fixed to the middle position of the upper side face of the piston piece. The inner edge of the lower side of the limiting ring is arranged in an annular thread sunken mode. The piston inner sleeve penetrates through the piston shell and is connected with the limiting piece; a spiral thread is arranged on the peripheral side of the piston inner sleeve, and the area of the spiral thread is arranged in a protruding mode. According to the utility model, the outer structure of the piston inner sleeve is formed by the piston shell and the limiting piece, and the structures are in threaded connection, so that the piston inner sleeve is more convenient to mount and dismount.

Description

Technical Field

[0001] The utility model relates to the technical field of wind instrument accessories, in particular to an improved trumpet piston assembly. Background Art

[0002] Trumpet, also known as small trumpet, is a kind of brass instrument. Most of the existing trumpet pistons are welded by brass spring tube, stainless steel piston tube, brass upper and lower plugs and ventilation pipe.

[0003] The existing public patent (publication number CN 207938302 U) discloses a small piston, which includes a spring tube and a piston tube coaxially arranged and integrally made from top to bottom. The interior of the spring tube and the interior of the piston tube are penetrated from top to bottom to form an inner hole, and the outer diameter of the spring tube is smaller than the outer diameter of the piston tube; two positioning grooves are formed through the tube wall of the spring tube, and an internal thread is formed on the inner wall of the port at the upper part of the spring tube; a plurality of ventilation pipes are embedded and installed through the tube body of the piston tube, and a lower plug is embedded and installed in the port at the bottom of the piston tube. In the small piston of the utility model, the spring tube and the piston tube are integrally made, which can not only accurately locate, but also ensure the coaxiality of the small piston, and effectively prevent the thread from buckling.

[0004] However, the above-mentioned integrally formed piston is inconvenient to load and unload during actual use, and the piston lacks a limiting structure, resulting in low practicality. Therefore, the utility model proposes an improved small piston assembly to achieve improvements on the above-mentioned problems. Utility Model Content

[0005] The purpose of the utility model is to provide an improved small piston assembly to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an improved small-sized piston assembly, comprising a piston body mounted on a small-sized piston; the piston body comprises a piston housing, a stopper threadedly connected to the bottom of the piston housing, a stopper ring arranged at the top of the piston housing, a piston inner sleeve arranged inside the piston housing, a piston member arranged inside the piston inner sleeve, and a connecting rod fixed at the middle position of the upper side of the piston member;

[0007] The lower inner edge of the limiting ring is arranged in the form of an annular threaded depression;

[0008] The piston inner sleeve passes through the piston outer sleeve and is connected to the limiting member.

[0009] Preferably, the limiting ring is integrally connected to the top of the piston inner sleeve, and the annular recess of the limiting ring is threadedly connected to the top of the piston outer sleeve.

[0010] Preferably, an upper threaded area is provided on the top of the piston housing, and the piston housing and the limiting member have the same outer diameter.

[0011] Preferably, a lower threaded area is provided on the circumferential side of the bottom of the piston inner sleeve, and the lower threaded area is threadedly connected to the inner wall of the limiting member.

[0012] Preferably, the circumferential side of the piston inner sleeve is provided with spiral patterns, and the area of ​​the spiral patterns is provided in a convex manner.

[0013] Preferably, the piston member is arranged in close contact with the interior of the piston inner sleeve, and air holes are arranged on the circumference of the piston member.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] The utility model forms an outer structure of a piston inner sleeve by setting a piston outer shell and a limiting member, and the above structures all adopt a threaded connection method, which makes the installation and disassembly of the piston inner sleeve relatively convenient, and the external force can be applied to the piston member through a connecting rod. Under the action of the external force, the piston member rises and falls along the piston inner sleeve to realize the tuning function, and the upper part of the piston inner sleeve is relatively fixed with the piston outer shell under the action of a limiting ring, and the lower part thereof is fixed with the bottom of the piston outer shell under the action of the limiting member, and under the joint action of the piston outer shell and the limiting member, a sealed isolation is realized, and the lower threaded area arranged at the bottom of the piston inner sleeve is used for the connection of the limiting member, and the spiral pattern arranged on the peripheral side of the piston inner sleeve is an integrated molding structure, which causes the inner wall of the piston inner sleeve to bulge inward to form a limiting pattern for assisting the movement and limiting of the piston member. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the main structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the inner sleeve of the screw piston in the utility model;

[0018] Figure 3 It is a schematic diagram of the piston housing structure in the utility model.

[0019] In the figure: 1. piston body; 11. piston housing; 12. limiter; 13. limit ring; 14. piston member; 15. connecting rod; 16. piston inner sleeve; 17. spiral pattern; 18. lower threaded area; 19. upper threaded area. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the implementation regulations described are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] Example

[0022] See also Figure 1-3 , as shown in the figure: This embodiment is a preferred implementation of the technical solution, an improved small-sized piston assembly, comprising a piston body 1 mounted on a small-sized piston; the piston body 1 comprises a piston housing 11, a stopper 12 threadedly connected to the bottom of the piston housing 11, a stopper ring 13 arranged at the top of the piston housing 11, a piston inner sleeve 16 arranged inside the piston housing 11, a piston member 14 arranged inside the piston inner sleeve 16, and a connecting rod 15 fixed to the middle position of the upper side of the piston member 14;

[0023] The lower inner edge of the limiting ring 13 is arranged in a circular threaded depression;

[0024] The piston inner sleeve 16 passes through the piston outer shell 11 and is connected to the limiting member 12;

[0025] It should be noted that the piston body 1 involved in the present application has the same principle of use as the current piston during specific use, but improvements are made to its outer shell structure, with the piston outer shell 11 and the limit member 12 forming the outer structure of the piston inner sleeve 16, and the above structures all adopt a threaded connection method, which makes the installation and disassembly of the piston inner sleeve 16 relatively convenient. An external force can be applied to the piston member 14 through the connecting rod 15. Under the action of the external force, the piston member 14 rises and falls along the piston inner sleeve 16 to realize the tuning function.

[0026] Among them Figure 1 As shown, the piston member 14 is closely arranged inside the piston inner sleeve 16, and air holes are arranged on the circumference of the piston member 14;

[0027] It should be noted that the piston member 14 has the same operating principle as the currently common piston member 14 , and its specific structure is not described restrictively.

[0028] Among them Figure 2As shown, the limiting ring 13 is integrally connected to the top of the piston inner sleeve 16, and the annular recess of the limiting ring 13 is threadedly connected to the top of the piston outer shell 11; the bottom circumferential side of the piston inner sleeve 16 is provided with a lower threaded area 18, and the lower threaded area 18 is threadedly connected to the inner wall of the limiting member 12; the circumferential side of the piston inner sleeve 16 is provided with a spiral pattern 17, and the area of ​​the spiral pattern 17 is convexly arranged;

[0029] It should be noted that the upper part of the piston inner sleeve 16 involved in the present application remains relatively fixed with the piston outer shell 11 under the action of the limiting ring 13, and the lower part is fixed with the bottom of the piston outer shell 11 under the action of the limiting member 12, and under the joint action of the piston outer shell 11 and the limiting member 12, a sealed isolation is achieved, and the lower threaded area 18 arranged at the bottom of the piston inner sleeve 16 is used for the connection of the limiting member 12, and the spiral pattern 17 arranged on the circumferential side of the piston inner sleeve 16 is an integrally molded structure, which causes the inner wall of the piston inner sleeve 16 to bulge inward to form a limiting pattern, which is used to assist the movement and limitation of the piston member 14.

[0030] Among them Figure 3 As shown, an upper threaded area 19 is provided on the top of the piston housing 11, and the outer diameter of the piston housing 11 is the same as that of the stopper 12;

[0031] It should be noted that the upper threaded area 19 set on the top of the piston shell 11 involved in the present application is used to connect the piston shell 11 and the limiting ring 13, so that the two can maintain a fixed relative position. At the same time, the threaded connection method is adopted to facilitate the loading and unloading of the two. The limiting member 12 is used to assist in fixing the position of the piston inner sleeve 16 to avoid the piston inner sleeve 16 and the piston shell 11 from offset.

[0032] In the description of the present invention, it should be noted that the terms "vertical", "up", "down", "horizontal", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0033] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. An improved trumpet piston assembly, comprising a piston body (1) mounted on a trumpet; characterized in that: The piston body (1) comprises a piston shell (11), a stopper (12) threadedly connected to the bottom of the piston shell (11), a stopper ring (13) arranged at the top of the piston shell (11), a piston inner sleeve (16) arranged inside the piston shell (11), a piston member (14) with a piston arranged inside the piston inner sleeve (16), and a connecting rod (15) fixed to the middle position of the upper side of the piston member (14); The lower inner edge of the limiting ring (13) is arranged in the form of an annular threaded depression; The piston inner sleeve (16) passes through the piston outer sleeve (11) and is connected to the limiting member (12).

2. An improved small piston assembly according to claim 1, characterized in that: The limiting ring (13) is integrally connected to the top of the piston inner sleeve (16), and the annular recess of the limiting ring (13) is threadedly connected to the top of the piston outer sleeve (11).

3. An improved small piston assembly according to claim 1, characterized in that: An upper threaded area (19) is provided at the top of the piston housing (11), and the outer diameters of the piston housing (11) and the limiting member (12) are the same.

4. An improved small piston assembly according to claim 1, characterized in that: A lower threaded area (18) is provided on the circumferential side of the bottom of the piston inner sleeve (16), and the lower threaded area (18) is threadedly connected to the inner wall of the limiting member (12).

5. An improved small piston assembly according to claim 1, characterized in that: The piston inner sleeve (16) is provided with a spiral pattern (17) on its circumferential side, and the region of the spiral pattern (17) is provided in a convex manner.

6. An improved small piston assembly according to claim 1, characterized in that: The piston member (14) is arranged in close contact with the interior of the piston inner sleeve (16), and air holes are arranged on the circumference of the piston member (14).

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