Piano tuner

Abstract

The utility model discloses a piano tuner, and belongs to the technical field of piano tuning instruments. The piano tuning wrench mainly comprises a tuning wrench body, the tuning wrench body is provided with a sleeve, and the sleeve is provided with clamping teeth matched with fixing screws of piano strings. The go / no-go gauge is detachably mounted on the tuning wrench, the go / no-go gauge comprises a matching column, and the matching column is mounted on the tuning wrench; the go gauge is arranged at one end of the matching column; the no-go gauge is arranged at the other end of the matching column; the tooth shapes of the go gauge and the no-go gauge are matched with the tooth shapes of the latches, the size of the go gauge is smaller than the size of the latches, and the size of the no-go gauge is larger than the size of the latches. According to the piano tuner, the go-no go gauge which is detachably installed on the tuning wrench is arranged, so that the purpose of detecting the tuning wrench before piano tuning is achieved, and the situation that screws for fixing strings are damaged due to the fact that the interior of the sleeve of the tuning wrench is abraded or burrs are generated is prevented.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of piano tuning instruments, in particular to a piano tuner. BACKGROUND

[0002] The pitch of a piano is guaranteed by the tension of the strings. Since the strings are in a state of tension for a long time, they will vibrate during performance. Therefore, the strings will produce stress creep, resulting in changes in pitch. Generally, a piano needs to be tuned once or twice a year. Currently, when tuning a piano, the screws near the fixed iron clamps are loosened first, and then the sound strings are adjusted. During adjustment, a sleeve is used to loosen or tighten the string adjustment screw, thereby achieving the purpose of tuning.

[0003] For example, the patent with publication number CN215450868 U discloses a piano multi-purpose tuning wrench. The patent adjusts the distance between the rotating wrench and the outer handle by the telescopic rod, and controls the rotation of the telescopic rod by the outer handle to drive the rotating member to rotate, thereby driving the rotating wrench to operate, thereby saving the force required when manually rotating. In addition, the sound stop clamp slidingly arranged on the connecting head can clamp and stop the piano strings for mute operation.

[0004] However, during long-term use of the tuning wrench, the sleeve on the tuning wrench repeatedly contacts and rubs against the screw that fixes the string, which may cause wear or burrs inside the sleeve. When the sleeve is worn, it may slip during use. When the sleeve has burrs, it may not fit into the screw.

[0005] The above two situations occur from time to time, which may cause damage to the screw that fixes the string. Therefore, it is necessary to provide a piano tuner to solve the above problems.

[0006] It should be noted that the above information disclosed in this background section is only used to understand the background technology of the present application concept, and therefore, it can contain information that does not constitute prior art. SUMMARY

[0007] Based on the above problems in the prior art, the present application solves the problem of providing a piano tuner that can detect the tuning wrench before tuning the piano, thereby preventing damage to the screw that fixes the string.

[0008] The technical scheme adopted by the present application to solve its technical problems is: a piano tuner, comprising a tuning wrench, the tuning wrench having a sleeve, the sleeve being provided with a clamping tooth matched with a fixing screw of a piano string; a pass-stop gauge, the pass-stop gauge being detachably mounted on the tuning wrench, the pass-stop gauge comprising a matching column mounted on the tuning wrench; a pass gauge provided at one end of the matching column; a stop gauge provided at the other end of the matching column; the tooth shape of the pass gauge and the stop gauge being matched with the tooth shape of the clamping tooth, and the size of the pass gauge being smaller than the size of the clamping tooth, and the size of the stop gauge being larger than the size of the clamping tooth.

[0009] Further, the tuning wrench has a handle held by a tuner, one end of the handle being provided with a connecting rod, a bent rod being mounted at the end of the connecting rod away from the handle, and the sleeve being mounted on the bent rod.

[0010] Further, the handle is internally provided with a matching hole, the matching hole being in sliding fit with the matching column.

[0011] Further, the matching column is provided with a threaded portion, and the matching hole is internally provided with an internal thread.

[0012] Further, the bottom of the pass gauge is provided with a mounting hole, the mounting hole being internally provided with a cleaning portion, the cleaning portion comprising a cleaning rod provided in the mounting hole, and cleaning cotton provided on the cleaning rod.

[0013] Further, the diameter of the cleaning cotton is larger than the diameter of the clamping tooth.

[0014] Further, the outer end of the handle is provided with a counterbore, the counterbore being in communication with the matching hole.

[0015] Further, the stop gauge is provided with a hexagonal hole.

[0016] Further, the outer end of the handle is covered with a cap.

[0017] Further, the handle is provided with an anti-skid portion.

[0018] The piano tuner provided by the present application can achieve the purpose of detecting the tuning wrench before tuning the piano, so as to prevent the sleeve of the tuning wrench from being worn or generating burrs, and thus preventing the screw for fixing the string from being damaged.

[0019] In addition to the purposes, features and advantages described above, the present application has other purposes, features and advantages. The present application will be further described in detail below with reference to the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0020] The accompanying drawings, which form a part of the specification, are included to provide a further understanding of the application and are incorporated herein in conjunction with the description of the application. The drawings are not to be construed as constituting an undue limitation on the scope of the application.

[0021] In the drawings:

[0022] Figure 1 It is a whole schematic diagram of a piano tuner in the application;

[0023] Figure 2 It is a whole structure explosion schematic diagram of a piano tuner in the application Figure 1 ;

[0024] Figure 3 It is a whole structure explosion schematic diagram of a piano tuner in the application Figure 2 ;

[0025] Figure 4 It is a partial structure schematic diagram of A in the application; Figure 1 ;

[0026] Figure 5 It is a partial structure schematic diagram of B in the application; Figure 2 ;

[0027] Figure 6 It is a partial structure schematic diagram of C in the application; Figure 3 ;

[0028] In the drawings, various reference signs refer to the following items:

[0029] 1, tuning wrench; 11, handle; 111, matching hole; 112, counterbore; 12, connecting rod; 13, bent rod; 14, sleeve; 141, clamping tooth;

[0030] 2, go-no-go gauge; 21, stop gauge; 211, hexagonal hole; 22, holding part; 23, threaded part; 24, matching column; 25, go gauge; 251, mounting hole;

[0031] 3, cleaning part; 31, cleaning rod; 32, cleaning cotton. DETAILED DESCRIPTION

[0032] It should be noted that the embodiments in the application and the features in the embodiments can be combined with each other without conflict. The application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0033] In order to make the person skilled in the art better understand the scheme of the present application, the technical scheme in the embodiments of the present application will be clearly and completely described below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by the person skilled in the art without creative labor should belong to the scope of protection of the present application.

[0034] As shown in Figure 1 The present application provides a piano tuner, which comprises a tuning wrench 1, the tuning wrench 1 has a handle 11 held by a tuner, the handle 11 is provided with a conical outer surface, and an anti-skid part (not shown in the figure) is arranged on the handle 11, so as to prevent slipping when the tuner holds it. In the present application, the anti-skid part can be an anti-skid pattern arranged on the handle 11, or an anti-skid protrusion arranged on the handle 11, of course, other similar simple anti-skid structures can also be arranged, which will not be described one by one here.

[0035] As shown in Figure 1 and Figure 4 A connecting rod 12 is fixedly installed at one end of the handle 11, a bent rod 13 is fixedly installed at the end of the connecting rod 12 away from the handle 11, a sleeve 14 is fixedly arranged at the end of the bent rod 13 away from the connecting rod 12, the sleeve 14 is provided with an open end (not marked in the figure) at the end away from the bent rod 13, and a clamping tooth 141 is arranged in the open end, the clamping tooth 141 is adapted to a fixed screw (hereinafter referred to as a screw) of a string, so that when the string is adjusted, the tuner clamps the clamping tooth 141 with the screw, and then holds the handle 11 to rotate, so as to twist the screw, thereby conveniently adjusting the tightness of the string, and then adjusting the pitch of the piano.

[0036] In the present application, the sleeve 14 has a relatively deep depth, so as to prevent the screw from falling out of the sleeve 14.

[0037] As shown in Figures 2-3 and Figures 5-6 A go-no-go gauge 2 is placed in the inside of the handle 11, the go-no-go gauge 2 is used to detect the clamping tooth 141 to determine whether the clamping tooth 141 is worn or has burrs, specifically:

[0038] The go-no-go gauge 2 comprises a matching column 24, and a matching hole 111 is arranged in the inside of the handle 11, the matching hole 111 is slidably matched with the matching column 24, so that the go-no-go gauge 2 can be placed in the inside of the handle 11 through the matching column 24 and the matching hole 111;

[0039] More preferably, a threaded portion 23 is arranged on the fitting column 24, and an internal thread (not shown in the figure) is arranged in the fitting hole 111, so that the through gauge 2 is fixed in the interior of the handle 11 by the cooperation of the threaded portion 23 and the internal thread;

[0040] Meanwhile, a through gauge 25 is fixedly connected to one end of the fitting column 24, the tooth shape of the through gauge 25 is adapted to the tooth shape of the clamping tooth 141, and the size of the through gauge 25 is slightly smaller than the size of the clamping tooth 141, so that the through gauge 25 can smoothly enter the interior of the clamping tooth 141, and a holding portion 22 is fixedly arranged at the other end of the fitting column 24, so as to facilitate the operation of the tuner;

[0041] And a stop gauge 21 is fixedly arranged at the other end of the holding portion 22, the tooth shape of the stop gauge 21 is adapted to the tooth shape of the clamping tooth 141, and the size of the stop gauge 21 is slightly larger than the size of the clamping tooth 141, so that the stop gauge 21 can be blocked by the clamping tooth 141, so as to be unable to enter the interior of the clamping tooth 141;

[0042] In summary, before the tuning wrench 1 is used, the through gauge 25 enters the clamping tooth 141, and the stop gauge 21 is blocked outside the clamping tooth 141, so as to judge whether the clamping tooth 141 is worn or has burrs, thereby preventing the tuning wrench 1 from causing damage to the screw fixing the string.

[0043] As shown in Figure 2 and Figure 5 , an installation hole 251 is arranged at the bottom of the through gauge 25, and a cleaning portion 3 is arranged in the installation hole 251, which is used for cleaning operation before the wrench is used, the cleaning portion 3 includes a cleaning rod 31 fixedly arranged in the installation hole 251, and a cleaning cotton 32 fixedly arranged on the cleaning rod 31, which is adapted to enter the interior of the clamping tooth 141 along with the through gauge 25, and perform cleaning operation on the clamping tooth 141;

[0044] More preferably, the diameter of the cleaning cotton 32 is larger than the diameter of the clamping tooth 141, so that the clamping tooth 141 can be thoroughly cleaned to prevent debris from accumulating on the clamping tooth 141.

[0045] As shown in Figure 3 and Figure 6 , a counterbore 112 is arranged at the outer end of the handle 11, which communicates with the fitting hole 111, and is used for placing the holding portion 22 and the stop gauge 21, so as to prevent the stop gauge 21 from protruding from the outer end of the handle 11;

[0046] Meanwhile, a hexagonal hole 211 is arranged on the stop gauge 21, so as to facilitate the removal of the through gauge 2 from the handle 11 by a tool, and the placement of the through gauge 2 on the handle 11 when not in use;

[0047] More preferably, a cap (not shown in the drawings) is attached to the outer end of the handle 11 to facilitate closing of one end of the handle 11. The cap can be made of nylon to facilitate removal and attachment.

[0048] The above description is merely the preferred embodiments of the present application, and is not intended to limit the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A piano tuner, characterized by: include: A tuning wrench (1) having a sleeve (14) having teeth (141) adapted to the fixing screws of the piano strings; A go / no-go gauge (2), which is detachably mounted on the tuning wrench (1), the go / no-go gauge (2) comprising: A mating post (24) is mounted on the tuning wrench (1); A go gauge (25) is provided at one end of the mating post (24); A stop gauge (21) is provided at the other end of the mating post (24); The tooth profiles of the go gauge (25) and the no-go gauge (21) are adapted to the tooth profiles of the locking tooth (141), and the size of the go gauge (25) is smaller than the size of the locking tooth (141), while the size of the no-go gauge (21) is larger than the size of the locking tooth (141).

2. A piano tuner as claimed in claim 1, characterized in that: The tuning wrench (1) has a handle (11) held by a tuner, a connecting rod (12) is installed at one end of the handle (11), a bent rod (13) is installed at the end of the connecting rod (12) away from the handle (11), and a sleeve (14) is installed on the bent rod (13).

3. A piano tuner as claimed in claim 2, wherein: The handle (11) has a mating hole (111) inside, and the mating hole (111) and the mating post (24) are slidably fitted.

4. A piano tuner as claimed in claim 3, wherein: The mating column (24) is provided with a threaded part (23), and the mating hole (111) is provided with an internal thread.

5. A piano tuner as claimed in claim 4, wherein: The bottom of the gauge (25) is provided with a mounting hole (251), and a cleaning part (3) is provided in the mounting hole (251). The cleaning part (3) includes a cleaning rod (31) provided in the mounting hole (251) and a cleaning cotton (32) provided on the cleaning rod (31).

6. A piano tuner as claimed in claim 5, wherein: The diameter of the cleaning cotton (32) is larger than the diameter of the tooth (141).

7. A piano tuner as claimed in claim 6, wherein: The outer end of the handle (11) is provided with a countersunk hole (112), which is connected to the mating hole (111).

8. A piano tuner according to claim 7, characterised in that: The stop gauge (21) is provided with a hexagonal hole (211).

9. A piano tuner as claimed in claim 8, characterised in that: The outer end of the handle (11) is covered with a cap.

10. The piano tuner of claim 2, wherein: The handle (11) is provided with an anti-slip part.

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