E-tone / D-tone reducing trumpet

Abstract

The utility model discloses an E-tone / D-tone reduction trumpet, which comprises a trumpet main body, the rotary valve mechanism is connected with the trumpet main body; the rotary valve mechanism is detachably connected with the first tuning pipe assembly in an inserted mode so that the trumpet can be played in the E-tone-down mode, or the rotary valve mechanism is detachably connected with the second tuning pipe assembly in an inserted mode so that the trumpet can be played in the D-tone mode; the key assembly is in transmission connection with the rotary valve mechanism; the mouthpiece pipe is arranged below the trumpet main body; and the mouthpiece is connected with the mouthpiece pipe. According to the E-tone / D-tone down trumpet, E-tone down and D-tone down switching is achieved through component replacement, carrying is convenient, and the playing cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of musical instruments, in particular to a trumpet in E flat major / D major. Background Art

[0002] The trumpet is a kind of brass instrument. Among all brass instruments, the pronunciation and sound of the trumpet are the highest. There are various types of trumpets in different keys such as B flat major, C major, D major, E flat major, F major, G major, A major, and high (one octave higher) B flat major. These keys are determined according to the fundamental tones of the first overtone series. Most of the existing rotary valve trumpets can only play in one key. During a performance, a performer often needs to carry multiple trumpets in different keys, which is inconvenient to carry and costly. Therefore, a trumpet in E flat major / D major is designed to achieve the switching between E flat major and D major by replacing components, which is convenient to carry and reduces the performance cost. Summary of the Utility Model

[0003] In view of the above defects or deficiencies in the prior art, it is desirable to provide a trumpet in E flat major / D major, which can achieve the switching between E flat major and D major by replacing components, is convenient to carry, and reduces the performance cost.

[0004] A trumpet in E flat major / D major provided by the utility model includes:

[0005] A trumpet main body, one end of which is a bell, and the other end is bent in a U shape obliquely downward;

[0006] A rotary valve mechanism, one end of which is an air inlet end, and the other end is an air outlet end, and the air outlet end is connected to the U-shaped bent end of the trumpet main body;

[0007] A first tuning pipe assembly and a second tuning pipe assembly. The rotary valve mechanism can be detachably inserted into the first tuning pipe assembly to enable the trumpet to play in E flat major, or the rotary valve mechanism can be detachably inserted into the second tuning pipe assembly to enable the trumpet to play in D major;

[0008] A key assembly, which is in transmission connection with the rotary valve mechanism and is used to control the connection of the rotary valve mechanism;

[0009] A mouthpiece pipe, which is arranged below the trumpet main body, and one end of it is connected to the air inlet end of the rotary valve mechanism through the first main tuning pipe of the first tuning pipe assembly or the second main tuning pipe of the second tuning pipe assembly;

[0010] A mouthpiece, which is connected to the other end of the mouthpiece pipe.

[0011] Further, the rotary valve mechanism includes:

[0012] 1 # A rotary valve assembly, one side of which is connected with 1 # An air outlet pipe, and the other side is connected with two parallel 1# The sleeve, the 1 # The air outlet pipe is the air outlet end of the rotary valve mechanism;

[0013] 2 # The rotary valve assembly, one side of which is connected to the 1 # air outlet pipe and the 1 # rotary valve assembly, and the other side is fixedly connected with a U-shaped 2 # sound-changing pipe;

[0014] 3 # The rotary valve assembly, one side of which is connected to the 3 # air outlet pipe and the 2 # rotary valve assembly, and is connected with an intake sleeve through the 3 # intake pipe, and the other side is connected with two parallel 3 # sleeves, the 3 # intake pipe is the intake end of the rotary valve mechanism.

[0015] Furthermore, the first tone adjustment pipe assembly includes:

[0016] A U-shaped first main tone adjustment pipe, one end of which is detachably inserted into the intake sleeve, and the other end is detachably inserted into the mouthpiece pipe. A first limit ring is fixedly sleeved outside the end of the intake sleeve on the first main tone adjustment pipe, and a first sealing ring is arranged between the first limit ring and the intake sleeve;

[0017] A U-shaped first 1 # sound-changing pipe, the two ends of which are respectively and detachably inserted into the two 1 # sleeves, and first 1 # limit rings are fixedly sleeved outside the ends of the 1 # sleeves on the first 1 # sound-changing pipe, and first 1 # sealing rings are arranged between the first 1 # limit rings and the 1 # sleeves;

[0018] A U-shaped first 3 # sound-changing pipe, the two ends of which are respectively and detachably inserted into the two 3 # sleeves, and first 3 # limit rings are fixedly sleeved outside the ends of the 3 # sleeves on the first 3 # sound-changing pipe, and first 3 # sealing rings are arranged between the first 3 # limit rings and the 3 # sleeves.

[0019] Furthermore, the second tone adjustment pipe assembly includes:

[0020] A second main tuning pipe in a U shape, one end of which is detachably inserted into the intake sleeve, and the other end is detachably inserted into the mouthpiece pipe. A second limiting ring is fixedly sleeved outside the end of the intake sleeve on the second main tuning pipe. A second sealing ring is arranged between the second limiting ring and the intake sleeve. The length of the second main tuning pipe outside the intake sleeve and the mouthpiece pipe is greater than the length of the first main tuning pipe outside the intake sleeve and the mouthpiece pipe;

[0021] The second 1 in a U shape # Variation pipe, both ends of which are detachably inserted into two of the 1 # Sleeves, the second 1 # On the variation pipe at the outside of the end of the 1 # Sleeves, second 1 are fixedly sleeved # Limiting rings, the second 1 # Limiting rings and 1 # Sleeves, second 1 are arranged # Sealing rings, the second 1 # The length of the variation pipe outside the 1 # Sleeves is greater than the length of the first 1 # Variation pipe outside the 1 # Sleeves;

[0022] The second 3 in a U shape # Variation pipe, both ends of which are detachably inserted into two of the 3 # Sleeves, the second 3 # On the variation pipe at the outside of the end of the 3 # Sleeves, second 3 are fixedly sleeved # Limiting rings, the second 3 # Limiting rings and 3 # Sleeves, second 3 are arranged # Sealing rings, the second 3 # The length of the variation pipe outside the 3 # Sleeves is greater than the length of the first 3 # Variation pipe outside the 3 # Sleeves.

[0023] Furthermore, a water release key is installed at the bottom of the bending section of the first main tuning pipe and the bottom of the bending section of the second main tuning pipe.

[0024] Furthermore, the button assembly includes a bracket fixedly arranged on the 1 # Sleeve and 3 # Sleeves. One side of the bracket corresponds to the 1 # Rotary valve assembly, 2# Rotary valve assembly and 3 # The rotary valve assembly is provided with three first transmission arms. One side of the top end of the first transmission arm is rotatably connected to the bracket, and a button is fixedly connected to the other side. The bottom end of the first transmission arm is corresponding to the 1 # Rotary valve assembly, 2 # Rotary valve assembly or 3 # A pull rod is arranged between the rotary valve assemblies. One end of the pull rod is rotatably connected to the first transmission arm, and the other end is rotatably connected to the corresponding 1 # Rotary valve assembly, 2 # Rotary valve assembly or 3 # Rotary valve assembly.

[0025] Furthermore, an armrest frame extending below the button is fixedly connected to the bracket.

[0026] Furthermore, a pitch adjustment assembly is detachably connected between the bracket and the first 3 # Pitch-changing tube or the second 3 # Pitch-changing tube for adjusting the depth of insertion of the first 3 # Pitch-changing tube or the second 3 # Pitch-changing tube into the 3 # Casing;

[0027] The pitch adjustment assembly includes a second transmission arm. One side of the top end of the second transmission arm is rotatably connected to the bracket, and an adjustment key is fixedly connected to the other side. The top of the bent section of the first 3 # Pitch-changing tube is fixedly provided with a first sphere, and the top of the bent section of the second 3 # Pitch-changing tube is fixedly provided with a second sphere. An expansion rod is arranged between the bottom end of the second transmission arm and the first sphere or the second sphere. One end of the expansion rod is rotatably connected to the bottom end of the second transmission arm, and the other end is detachably sleeved with the first sphere or the second sphere through a hemispherical sleeve. A knurled screw for fixing its length is arranged on the expansion rod.

[0028] Furthermore, the mouthpiece is detachably inserted into the mouthpiece tube, and multiple mouthpiece tubes with different inner diameters are provided.

[0029] Furthermore, a 1 # Column is fixedly connected between the mouthpiece tube and the U-shaped bent end of the trumpet body, and a 2 # Column is fixedly connected between the mouthpiece tube and the intake casing; a 1 # Hook is fixedly connected between one end of the mouthpiece tube and the trumpet body, and a 2 # Hook is fixedly connected between the other end of the mouthpiece tube and the trumpet body.

[0030] Compared with the prior art, the beneficial effects of the present utility model are:

[0031] The small-sized trumpet of the present utility model is provided with a first tuning pipe assembly and a second tuning pipe assembly; since the key of E flat and the key of D are two adjacent keys in the pitch range and have similar requirements for taper and pipe diameter, the pipe body can be shared. Moreover, the requirements for the player's level in the keys of E flat and D are not high, and there are many users of trumpets in the keys of E flat and D. In the trumpet of the present application, the first tuning pipe assembly is inserted into the rotary valve mechanism so that the trumpet can be played in the key of E flat; the first tuning pipe assembly is removed and the second tuning pipe assembly is inserted into the rotary valve mechanism so that the trumpet can be played in the key of D; the trumpet of the present application realizes the switching between the keys of E flat and D through component replacement, enabling one trumpet to be used as two trumpets, which is convenient to carry and reduces the performance cost.

[0032] It should be understood that the content described in the utility model content section is not intended to limit the key or important features of the embodiments of the present utility model, nor is it used to limit the scope of the present utility model. Other features of the present utility model will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Other features, objects, and advantages of the present utility model will become more apparent by reading the detailed description of the non-limiting embodiments with reference to the following drawings:

[0034] Figure 1 It is a schematic structural diagram of a trumpet in the key of E flat;

[0035] Figure 2 It is a top view structural diagram of a trumpet in the key of E flat;

[0036] Figure 3 It is a schematic structural diagram of the rotary valve mechanism into which the first tuning pipe assembly is inserted;

[0037] Figure 4 It is a schematic structural diagram of the first tuning pipe assembly;

[0038] Figure 5 It is a schematic structural diagram of the second tuning pipe assembly;

[0039] Figure 6 It is a schematic structural diagram of a trumpet in the key of D.

[0040] Reference numerals in the figures: 1, trumpet main body; 2, rotary valve mechanism; 3, first tuning pipe assembly; 4, second tuning pipe assembly; 5, key assembly; 6, mouthpiece pipe; 7, mouthpiece; 8, water release key; 9, intonation adjustment assembly;

[0041] 11, bell;

[0042] 21, 1 # Rotary valve assembly; 22, 2 # Rotary valve assembly; 23, 3 #Rotary valve assembly; 24, 1 # Outlet pipe; 25, 1 # Casing; 26, 2 # Outlet pipe; 27, 2 # Pitch-changing pipe; 28, 3 # Outlet pipe; 29, 3 # Inlet pipe; 210, Inlet casing; 211, 3 # Casing;

[0043] 31, First main tone-adjusting pipe; 32, First 1 # Pitch-changing pipe; 33, First 3 # Pitch-changing pipe; 34, First limiting ring; 35, First 1 # Limiting ring; 36, First 3 # Limiting ring; 37, First sphere;

[0044] 41, Second main tone-adjusting pipe; 42, Second 1 # Pitch-changing pipe; 43, Second 3 # Pitch-changing pipe; 44, Second limiting ring; 45, Second 1 # Limiting ring; 46, Second 3 # Limiting ring; 47, Second sphere;

[0045] 51, Bracket; 52, First transmission arm; 53, Button; 54, Pull rod; 55, Handrail bracket;

[0046] 61, 1 # Column; 62, 2 # Column; 63, 1 # Hook; 64, 2 # Hook;

[0047] 91, Second transmission arm; 92, Adjusting key; 93, Telescopic rod; 94, Hemispherical sleeve; 95, Knurled screw. Specific embodiments

[0048] The present utility model will be further described in detail below with reference to the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the relevant utility model, rather than limiting the utility model. Additionally, it should be noted that for the sake of description, only the parts related to the utility model are shown in the drawings.

[0049] It should be noted that, without conflict, the embodiments in the present utility model and the features in the embodiments can be combined with each other. The present utility model will be described in detail below with reference to the drawings and embodiments.

[0050] Please refer to Figures 1 to 6 , the embodiment of the present utility model provides a trumpet in E flat / D flat, including:

[0051] A small trumpet body 1, one end of which is a flared opening 11 and the other end is bent obliquely downward in a U shape;

[0052] A rotary valve mechanism 2, one end of which is an air inlet end and the other end is an air outlet end, and the air outlet end is connected to the U-shaped bent end of the small trumpet body 1;

[0053] A first tuning pipe assembly 3 and a second tuning pipe assembly 4. The rotary valve mechanism 2 can be detachably inserted into the first tuning pipe assembly 3 so that the trumpet can be played in the key of E flat, or the rotary valve mechanism 2 can be detachably inserted into the second tuning pipe assembly 4 so that the trumpet can be played in the key of D;

[0054] A key assembly 5, which is in transmission connection with the rotary valve mechanism 2 and is used to control the connection of the rotary valve mechanism 2;

[0055] A mouthpiece pipe 6 is arranged below the small trumpet body 1, and one end of it is connected to the air inlet end of the rotary valve mechanism 2 through the first main tuning pipe 31 of the first tuning pipe assembly 3 or the second main tuning pipe 41 of the second tuning pipe assembly 4;

[0056] A mouthpiece 7 is connected to the other end of the mouthpiece pipe 6.

[0057] In this embodiment, the trumpet of the present application realizes the switching between the key of E flat and the key of D by replacing the first tuning pipe assembly 3 and the second tuning pipe assembly 4, so that one trumpet can be used as two trumpets.

[0058] The key of E flat and the key of D are two adjacent keys in the pitch range, and the requirements for the taper and pipe diameter are similar, so the pipe body can be shared. Moreover, the requirements for the playing level of the players in the key of E flat and the key of D are not high, and there are many users of trumpets in the key of E flat and the key of D. Therefore, the trumpet of the present application in the key of E flat / D has a wider audience. The trumpet of the present application realizes the switching between the key of E flat and the key of D through component replacement, which is convenient to carry and reduces the playing cost.

[0059] In a preferred embodiment, as Figure 1 and Figure 2 shown, the rotary valve mechanism 2 includes:

[0060] 1 # A rotary valve assembly 21, one side of which is connected with 1 # an air outlet pipe 24, and the other side is connected with two parallel 1 # sleeves 25, 1 # the air outlet pipe 24 is the air outlet end of the rotary valve mechanism 2;

[0061] 2 # A rotary valve assembly 22, one side of which is connected to the rotary valve assembly 21 through 2 # an air outlet pipe 26, and the other side is fixedly connected with a U-shaped 2 # tone-changing pipe 27; #

[0062] 3 # The rotary valve assembly 23, one side of which is connected to 2 through the # outlet pipe 28, and is connected to the # rotary valve assembly 22 through 3, and is connected with an intake sleeve 210 through the # intake pipe 29, and the other side is connected with two parallel # sleeves 211, # The intake pipe 29 is the intake end of the rotary valve mechanism 2.

[0063] In this embodiment, # the rotary valve assemblies 21, # the rotary valve assembly 22 and # the rotary valve assembly 23 have the same structure, which consists of a housing and a rotary valve core arranged in the housing. By driving the rotary valve core to rotate, the communication switching of each pipeline connected to the housing is realized, and thus the trumpet playing is realized.

[0064] 1 # The sleeves 25, the intake sleeve 210, # the sleeves 211 are the insertion positions of the first tone adjustment pipe assembly 3 or the second tone adjustment pipe assembly 4 to realize the switching between the E flat key and the D key.

[0065] In a preferred embodiment, as Figure 3 and Figure 4 shown, the first tone adjustment pipe assembly 3 includes:

[0066] A U-shaped first main tone adjustment pipe 31, one end of which is detachably inserted into the intake sleeve 210, and the other end is detachably inserted into the mouthpiece pipe 6. A first limit ring 34 is fixedly sleeved outside the end of the intake sleeve 210 on the first main tone adjustment pipe 31, and a first sealing ring is arranged between the first limit ring 34 and the intake sleeve 210;

[0067] A U-shaped first # tone-changing pipe 32, both ends of which are correspondingly and detachably inserted into two # sleeves 25. A first # limit ring 35 is fixedly sleeved outside the end of the # sleeve 25 on the first # tone-changing pipe 32, and a first # sealing ring is arranged between the first # limit ring 35 and the # sleeve 25;

[0068] A U-shaped first # tone-changing pipe 33, both ends of which are correspondingly and detachably inserted into two said # sleeves, and a first # sealing ring is arranged between the first #A first 3 is fixedly sleeved on the outer side of the end of the sleeve tube # A limiting ring, the first 3 # Between the limiting ring and the 3 # A first 3 is arranged between the sleeve tube # Sealing ring

[0069] In this embodiment, the first main tuning pipe 31, the first 1 # The tone-changing pipe 32 and the first 3 # The tone-changing pipe 33 are plugged into the respective valve components of the rotary valve mechanism 2, realizing the playing of the E-flat major of the trumpet. Each limiting ring ensures the accuracy of the plugging position of each tone-changing pipe

[0070] In a preferred embodiment, as Figure 5 And Figure 6 Shown, the second tuning pipe assembly 4 includes

[0071] The second main tuning pipe 41 in a U shape, one end of which is detachably plugged into the intake sleeve tube 210, and the other end is detachably plugged into the mouthpiece pipe 6. A second limiting ring 44 is fixedly sleeved on the outer side of the end of the intake sleeve tube 210 on the second main tuning pipe 41. A second sealing ring is arranged between the second limiting ring 44 and the intake sleeve tube 210. The length of the second main tuning pipe 41 outside the intake sleeve tube 210 and the mouthpiece pipe 6 is greater than the length of the first main tuning pipe 31 outside the intake sleeve tube 210 and the mouthpiece pipe 6

[0072] The second 1 # The tone-changing pipe 42, both ends of which are detachably plugged into the two 1 # Sleeve tubes 25 respectively. A second 1 # On the tone-changing pipe 42 at the outer side of the end of the 1 # A second 1 is fixedly sleeved on the outer side of the end of the sleeve tube 25 # Limiting ring 45, the second 1 # Between the limiting ring 45 and the 1 # A second 1 is arranged between the sleeve tube 25 # Sealing ring, the second 1 # The length of the tone-changing pipe 42 outside the sleeve tube 25 is greater than the length of the first 1 # The length of the tone-changing pipe 32 outside the sleeve tube 25 # The length of the tone-changing pipe 32 outside the sleeve tube 25 # Is greater than the length of the first 1

[0073] The second 3 # The tone-changing pipe 43, both ends of which are detachably plugged into the two 3 # Sleeve tubes 211 respectively. A second 3 # On the tone-changing pipe 43 at the outer side of the end of the 3 # A second 3 is fixedly sleeved on the outer side of the end of the sleeve tube 211 # Limiting ring 46, the second 3 #A limiting ring 46 and 3 # A second 3 is provided between the sleeve 211 # sealing ring, and the second 3 # The tone-changing pipe 43 is located at 3 # The length of the tone-changing pipe 43 outside the sleeve 211 is greater than the first 3 # The tone-changing pipe 33 is located at 3 # the length of the tone-changing pipe 33 outside the sleeve 211.

[0074] In this embodiment, the second main tone pipe 41, the second 1 # tone-changing pipe 42 and the second 3 # tone-changing pipe 43 are inserted into the respective valve components of the rotary valve mechanism 2, realizing the D-tone performance of the trumpet. Each limiting ring ensures the accuracy of the insertion position of each tone-changing pipe.

[0075] In a preferred embodiment, as Figures 3 to 5 shown, a water discharge key 8 is installed at the bottom of the bending section of the first main tone pipe 31 and the bottom of the bending section of the second main tone pipe 41. Through the water discharge key 8, the accumulated water in the trumpet can be conveniently discharged to avoid affecting the performance.

[0076] In a preferred embodiment, as Figure 2 and Figure 3 shown, the key assembly 5 includes a bracket 51 fixedly arranged on the 1 # sleeve 25 and 3 # sleeve 211. One side of the bracket 51 corresponds to the 1 # rotary valve components 21, 2 # rotary valve components 22 and 3 # rotary valve components 23 are provided with three first transmission arms 52. One side of the top end of the first transmission arm 52 is rotatably connected to the bracket 51, and the other side is fixedly connected with a key 53. The bottom end of the first transmission arm 52 is provided with a pull rod 54 between the corresponding 1 # rotary valve components 21, 2 # rotary valve components 22 or 3 # rotary valve components 23. One end of the pull rod 54 is rotatably connected to the first transmission arm 52, and the other end is rotatably connected to the corresponding 1 # rotary valve components 21, 2 # rotary valve components 22 or 3 # rotary valve components 23.

[0077] In this embodiment, when the key 53 is pressed, the key 53 drives the first transmission arm 52 to rotate. The first transmission arm 52 drives the rotary valve core of the corresponding 1 # rotary valve components 21, 2 # rotary valve components 22 or 3 # rotary valve components 23 to rotate, thereby realizing the switching control of the gas path.

[0078] In a preferred embodiment, as Figure 2 and Figure 3 shown, a handrest frame 55 extending below the key 53 is fixedly connected to the bracket 51. The thumb of the performer hooks on the handrest frame 55, and the other fingers press on the key 53, which is convenient for performance.

[0079] In a preferred embodiment, as Figure 3 and Figure 6 shown, a pitch adjustment assembly 9 is detachably connected between the bracket 51 and the first # intonation pipe 33 or the second # intonation pipe 43, which is used to adjust the depth of insertion of the first # intonation pipe 33 or the second # intonation pipe 43 into the # sleeve 211;

[0080] The pitch adjustment assembly 9 includes a second transmission arm 91. One side of the top end of the second transmission arm 91 is rotatably connected to the bracket 51, and the other side is fixedly connected with an adjustment key 92. A first sphere 37 is fixedly arranged at the top of the bent section of the first # intonation pipe 33, and a second sphere 47 is fixedly arranged at the top of the bent section of the second # intonation pipe 43. An expansion link 93 is arranged between the bottom end of the second transmission arm 91 and the first sphere 37 or the second sphere 47. One end of the expansion link 93 is rotatably connected to the bottom end of the second transmission arm 91, and the other end is detachably sleeved with the first sphere 37 or the second sphere 47 through a hemispherical sleeve 94. A knurled screw 95 for fixing its length is arranged on the expansion link 93.

[0081] In this embodiment, by adjusting the length of the expansion link 93, the length of the first # intonation pipe 33 or the second # intonation pipe 43 can be adapted. Preferably, the second transmission arm 91 is installed inside the bracket 51 to avoid accidental touch during performance. By pulling the adjustment key 92 to drive the second transmission arm 91 to rotate, the second transmission arm 91 drives the first # intonation pipe 33 or the second # intonation pipe 43 to move, thereby adjusting the depth of insertion of the first # intonation pipe 33 or the second # intonation pipe 43 into the # sleeve 211, realizing the pitch adjustment of the trumpet, making the sound played by the trumpet more accurate and the performance effect better.

[0082] In a preferred embodiment, the mouthpiece 7 is detachably inserted into the mouthpiece tube 6. The mouthpiece tube 6 is provided with multiple tubes with different inner diameters. By replacing the mouthpiece tube 6 with different inner diameters, the trumpet can have different timbres and good adaptability.

[0083] In a preferred embodiment, as Figure 1 and Figure 2 shown, there is a fixed connection of one # upright column 61 between the mouthpiece tube 6 and the U-shaped bent end of the small-sized main body 1, and a fixed connection of two # upright columns 62 between the air intake sleeve 210, ensuring the stability of the small-sized structure; there is a fixed connection of one # hand hook 63 between one end of the mouthpiece tube 6 and the small-sized main body 1, and a fixed connection of two # hand hooks 64 between the other end and the small-sized main body 1, facilitating the performer to grip the trumpet.

[0084] In the description of this specification, terms such as "connection", "installation", "fixation", etc. shall be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0085] In the description of this specification, the description of terms such as "one embodiment", "some embodiments", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of this application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or instance. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0086] The above is only the preferred embodiment of this application and is not used to limit this application. For those skilled in the art, this application can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of this application shall be included within the protection scope of this application.

Claims

1. A Eb / D trumpet, characterized in that, Comprising: A small-sized main body (1), one end of which is a bell mouth (11), and the other end is bent in a U shape obliquely downward; A rotary valve mechanism (2), one end of which is an air inlet end, and the other end is an air outlet end, and the air outlet end is connected to the U-shaped bent end of the small-sized main body (1); A first tuning pipe assembly (3) and a second tuning pipe assembly (4), the rotary valve mechanism (2) can be detachably inserted into the first tuning pipe assembly (3) so that the trumpet can be played in the key of E flat, or the rotary valve mechanism (2) can be detachably inserted into the second tuning pipe assembly (4) so that the trumpet can be played in the key of D; A key assembly (5), which is in transmission connection with the rotary valve mechanism (2) and is used to control the connection of the rotary valve mechanism (2); A mouthpiece pipe (6), which is arranged below the small-sized main body (1), and one end of which is connected to the air inlet end of the rotary valve mechanism (2) through the first main tuning pipe (31) of the first tuning pipe assembly (3) or the second main tuning pipe (41) of the second tuning pipe assembly (4); A mouthpiece (7), which is connected to the other end of the mouthpiece pipe (6).

2. The Eb / D trumpet according to claim 1, characterized in that, The rotary valve mechanism (2) includes: 1 # A rotary valve assembly (21) is connected to one side with 1 # an air outlet pipe (24), and is connected to the other side with two parallel 1 # casing pipes (25). The 1 # air outlet pipe (24) is the air outlet end of the rotary valve mechanism (2); 2 # A rotary valve assembly (22), one side of which is connected to the # outlet air pipe (26) and is connected to the said # rotary valve assembly (21), and the other side is fixedly connected with a U-shaped # tone-changer pipe (27); 3 # A rotary valve assembly (23), one side of which is connected to the # outlet air pipe (28) and the # rotary valve assembly (22) through 3 # The inlet air pipe (29) is connected to an inlet air sleeve (210), and the other side is connected to two parallel 3 # sleeves (211). The # inlet air pipe (29) is the air inlet end of the rotary valve mechanism.

3. The E♭ / D trumpet according to claim 2, characterized in that, The first tuning pipe assembly (3) includes: A U-shaped first main tuning pipe (31), one end of which is detachably inserted into the air inlet sleeve (210), and the other end is detachably inserted into the mouthpiece pipe (6). A first limit ring (34) is fixedly sleeved outside the end of the air inlet sleeve (210) on the first main tuning pipe (31), and a first sealing ring is arranged between the first limit ring (34) and the air inlet sleeve (210); The first 1 in a U shape # A tone-changing pipe (32), the two ends of which are respectively and detachably inserted into two of the # casing pipes (25). A first # limiting ring (35) is fixedly sleeved on the outer side of the end of the tone-changing pipe (32) located at the # end of the casing pipe (25). A first # sealing ring is arranged between the limiting ring (35) and the # casing pipe (25). # A first # sealing ring; The first 3 in a U shape # A tone-changing pipe (33), the two ends of which are respectively and detachably inserted into two of the # casing pipes (211). A first # limiting ring (36) is fixedly sleeved on the outside of the tone-changing pipe (33) at the end of the # casing pipe (211). A first # sealing ring is arranged between the limiting ring (36) and the # casing pipe (211). # casing pipe (211). # sealing ring 4. The Eb / D trumpet according to claim 3, characterized in that, The second tuning pipe assembly (4) includes: A U-shaped second main tuning pipe (41), one end of which is detachably inserted into the air inlet sleeve (210), and the other end is detachably inserted into the mouthpiece pipe (6). A second limit ring (44) is fixedly sleeved outside the end of the air inlet sleeve (210) on the second main tuning pipe (41), and a second sealing ring is arranged between the second limit ring (44) and the air inlet sleeve (210). The length of the second main tuning pipe (41) outside the air inlet sleeve (210) and the mouthpiece pipe (6) is greater than the length of the first main tuning pipe (31) outside the air inlet sleeve (210) and the mouthpiece pipe (6); The second 1 in a U shape # A tone changing pipe (42), the two ends of which are respectively and detachably inserted into the two # casing pipes (25). The second # tone changing pipe (42) is located at the # outer sides of the ends of the # casing pipes (25), and second # limit rings (45) are fixedly sleeved thereon. The second # limit rings (45) and the # casing pipes (25) are provided with second # sealing rings. The length of the second # tone changing pipe (42) outside the # casing pipes (25) is greater than the length of the first # tone changing pipe (32) outside the casing pipes (25); The second 3 in a U shape # A tone-changing pipe (43), the two ends of which are respectively and detachably inserted into the two # casing pipes (210). A second # limiting ring (46) is fixedly sleeved on the outer side of the tone-changing pipe (43) at the end of the # casing pipe (210). A second # sealing ring is arranged between the limiting ring (46) and the # casing pipe (211). The length of the tone-changing pipe (43) outside the # casing pipe (211) is greater than the length of the first # tone-changing pipe (33) outside the # casing pipe (211). # # # ​​​ 5. The Eb / D trumpet according to claim 4, characterized in that, A water drain key (8) is installed at the bottom of the bent section of the first main tuning pipe (31) and the bottom of the bent section of the second main tuning pipe (41).

6. The Eb / D trumpet according to claim 4, characterized in that, The key assembly (5) includes a bracket (51) fixedly arranged on the 1 # casing (25) and 3 # casing (211). One side of the bracket (51) corresponds to the 1 # rotary valve assembly (21), 2 # rotary valve assembly (22) and 3 # rotary valve assembly (23) are provided with three first transmission arms (52). One side of the top end of the first transmission arm (52) is rotatably connected to the bracket (51), and the other side is fixedly connected with a key (53). The bottom end of the first transmission arm (52) is provided with a pull rod (54) between the corresponding 1 # rotary valve assembly (21), 2 # rotary valve assembly (22) or 3 # rotary valve assembly (23). One end of the pull rod (54) is rotatably connected to the first transmission arm (52), and the other end is rotatably connected to the corresponding 1 # rotary valve assembly (21), 2 # rotary valve assembly (22) or 3 # rotary valve assembly (23).

7. The Eb / D trumpet according to claim 6, characterized in that, An armrest frame (55) extending below the key (53) is fixedly connected to the bracket (51).

8. The Eb / D trumpet according to claim 6, characterized in that, The bracket (51) is detachably connected to a pitch adjustment assembly (9) between the first # # mutation pipe (33) or the second # # mutation pipe (43) for adjusting the insertion depth of the first # # mutation pipe (33) or the second # # mutation pipe (43) into the # # casing (211); The pitch adjustment component (9) includes a second transmission arm (91). One side of the top end of the second transmission arm (91) is rotatably connected to the bracket (51), and an adjustment key (92) is fixedly connected to the other side. The first 3 # A first sphere (37) is fixedly arranged at the top of the bent section of the tone-changing pipe (33). The second 3 # A second sphere (47) is fixedly arranged at the top of the bent section of the tone-changing pipe (43). An expansion rod (93) is arranged between the bottom end of the second transmission arm (91) and the first sphere (37) or the second sphere (47). One end of the expansion rod (93) is rotatably connected to the bottom end of the second transmission arm (91), and the other end is detachably sleeved with the first sphere (37) or the second sphere (47) through a hemispherical sleeve (94). A knurled screw (95) for fixing its length is arranged on the expansion rod (93).

9. The Eb / D trumpet according to claim 1, characterized in that, The mouthpiece (7) is detachably inserted into the mouthpiece pipe (6), and multiple mouthpiece pipes (6) with different inner diameters are provided.

10. The Eb / D trumpet according to claim 2, characterized in that, There is a fixed connection of 1 between the nozzle pipe (6) and the U-shaped bent end of the small trumpet main body (1). # There is a fixed connection of 2 between the upright column (61) and the intake sleeve (210). # There is a fixed connection of 1 between one end of the nozzle pipe (6) and the small trumpet main body (1). # There is a fixed connection of 2 between the hand hook (63) and the small trumpet main body (1) at the other end. # Hand hook (64).

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