Device for upright piano repair

Abstract

The utility model relates to the technical field of piano maintenance equipment, concretely is the device for upright piano maintenance, including the body, the right side rotation connection of body has the rotary rod, the inside of rotary rod has placed the groove, the inside rotation connection of placed groove has two pivot, the similar side fixed connection of two pivot has the handle, the inside of rotary rod has established two clamping groove, the inside clamping of clamping groove has the clamping block, the inside handle is slidably connected in clamping block penetration pivot, the outside of handle is equipped with the antiskid pad, the inside handle has established two installation groove, through the handle hinged in the inside of rotary rod, and use clamping block to carry out the clamping, make rotary rod not easy to be touched after using, and then make the placing stability of rotary rod after using better, thereby make the piano not easy to shake when being pushed, make the higher safety of conveying.

Description

Technical Field

[0001] This utility model relates to the field of piano maintenance equipment technology, and more specifically, to a device for repairing upright pianos. Background Technology

[0002] The working principle of an upright piano is basically the same as that of a grand piano, both containing core components such as the keyboard, action, hammers, strings, and soundboard. If internal structural repairs or replacements are needed, especially involving the bottom structure or parts near the ground, the piano must be laid down at a safe and controllable angle for the work to be performed. Therefore, a mobile cart is used to move the piano to the repair location.

[0003] A search revealed a prior art device for repairing an upright piano, patent publication number CN221811978U. The specification states: The device is assembled and unfolded. It is then moved to the back of the upright piano and erected using the curved ends of support frames one and two. A pry bar is inserted under the base of the upright piano. Holding the piano and the device, the work is performed using the curved ends of support frames one and two as fulcrums. The upright piano and the device then rotate and flip, allowing for repair work. After repair, the operation is reversed to reset the upright piano.

[0004] However, in actual use, a manual hoist is generally used for lifting and lowering, which involves using a rotating rod to drive the hoist to rotate. The rotating rod is usually an "L"-shaped block structure, and one end of it is usually facing the worker. Therefore, it is easy to be touched during use, which can affect the stability of the piano's movement. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a device for repairing upright pianos, so as to solve the problem that once a worker touches one end of the rotating rod, it will affect the stability of the piano's movement.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a device for repairing an upright piano, including a body, a rotating rod rotatably connected to the right side of the body, a placement groove inside the rotating rod, two rotating shafts rotatably connected inside the placement groove, a handle fixedly connected to the adjacent side of the two rotating shafts, two locking slots inside the rotating rod, locking blocks inside the locking slots, the locking blocks slidingly connected to the inside of the handles through the rotating shafts, and an anti-slip pad covered on the outside of the handles.

[0007] The handle has two mounting slots inside. The end of the locking block away from the slot is fixedly connected to a mounting plate. The end of the mounting plate away from the locking block is fixedly connected to a pull rope. The other end of the pull rope is fixedly connected to a connecting rod. An elastic element is sleeved on the outside of the connecting rod.

[0008] The anti-slip pad has two limiting blocks fixedly connected to its inner side. The limiting blocks have slots on their inner sides and grooves on their inner walls. The handle has limiting grooves on both its upper and lower sides. Multiple inserts are fixedly connected inside the limiting grooves, and two protrusions are fixedly connected to the outside of the inserts.

[0009] The card block is slidably connected inside the mounting groove, and the mounting piece is slidably connected inside the mounting groove.

[0010] One end of the elastic element is fixedly connected to the inner wall of the mounting groove, and the other end of the elastic element is fixedly connected to the mounting plate.

[0011] The pull cord is slidably connected inside the mounting groove, and the connecting rod is rotatably connected inside the handle.

[0012] The limiting block is slidably connected inside the limiting groove, and the insert block is inserted into the corresponding position slot.

[0013] The protrusion is slidably connected inside the slot, and the protrusion fits into the interior of the corresponding groove.

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

[0015] In the above solution, by hinged the handle inside the rotating rod and using a locking block, the rotating rod is less likely to be touched after use, thus improving the stability of the rotating rod after use. This makes the piano less likely to wobble when pushed, resulting in higher transportation safety. Attached Figure Description

[0016] Figure 1 This is a perspective view of the present utility model;

[0017] Figure 2 This is a right view of the rotating rod of this utility model;

[0018] Figure 3 For the present utility model Figure 2 Cross-sectional view of the structure at point AA;

[0019] Figure 4 For the present utility model Figure 3 Enlarged view of the structure at point A in the middle;

[0020] Figure 5 For the present utility model Figure 3 Enlarged view of the structure at point B in the middle.

[0021] [Figure Labels]

[0022] 1. Body; 2. Rotating rod; 3. Placement slot; 4. Rotating shaft; 5. Handle; 6. Slot; 7. Locking block; 8. Mounting slot; 9. Mounting piece; 10. Pull rope; 11. Connecting rod; 12. Elastic element; 13. Anti-slip pad; 14. Limiting block; 15. Limiting groove; 16. Slot; 17. Groove; 18. Insertion block; 19. Protrusion. Detailed Implementation

[0023] To make the technical problems, technical solutions and advantages of this utility model clearer, a detailed description will be given below in conjunction with the accompanying drawings and specific embodiments.

[0024] Example 1: Please refer to Figures 1 to 5 This utility model provides a technical solution: a device for repairing upright pianos, including a body 1. A rotating rod 2 is rotatably connected to the right side of the body 1. The rotating rod 2 is used to drive a manual hoist to rotate. A placement groove 3 is provided inside the rotating rod 2. Two rotating shafts 4 are rotatably connected inside the placement groove 3. A handle 5 is fixedly connected to the adjacent side of the two rotating shafts 4, so that the handle 5 can rotate inside the placement groove 3. Two locking grooves 6 are provided inside the rotating rod 2. Locking blocks 7 are locked inside the locking grooves 6. The locking blocks 7 slide through the rotating shafts 4 and are slidably connected inside the handle 5, so that the rotating shafts 4 and the handle 5 are limited. An anti-slip pad 13 is provided on the outside of the handle 5 to increase the friction of rotating the handle 5.

[0025] When it is necessary to turn the handle 5, by moving the two locking blocks 7 to the side closer together, the locking blocks 7 can disengage from the inside of the locking slot 6 and slide into the inside of the rotating shaft 4. Then, by engaging the handle 5, the handle 5 can drive the rotating shaft 4 to rotate inside the rotating rod 2, so that the handle 5 is at a right angle to the rotating rod 2. At this time, by moving the two locking blocks 7 to the side further apart, the locking blocks 7 can engage with the locking slot 6, thereby limiting the position of the handle 5.

[0026] Example 2: Based on Example 1, in order to facilitate the pulling of the locking block 7, two mounting grooves 8 are opened inside the handle 5. The locking block 7 is slidably connected inside the mounting groove 8, and the mounting groove 8 provides moving space for the locking block 7. The end of the locking block 7 away from the locking groove 6 is fixedly connected to the mounting piece 9. The mounting piece 9 is slidably connected inside the mounting groove 8. The mounting groove 8 limits the mounting piece 9, allowing the mounting piece 9 to slide smoothly. The end of the mounting piece 9 away from the locking block 7 is fixedly connected to the pull rope 10. The pull rope 10 is slidably connected inside the mounting groove 8, and the mounting groove 8 limits the pull rope 10, preventing the pull rope 10 from deviating when sliding. The other end of the pull rope 10 is fixedly connected to the connecting rod 11. The connecting rod 11 is rotatably connected inside the handle 5, and the handle 5 provides mounting space for the connecting rod 11. An elastic element 12 is sleeved on the outside of the connecting rod 11. One end of the elastic element 12 is fixedly connected to the inner wall of the mounting groove 8, and the other end of the elastic element 12 is fixedly connected to the mounting piece 9.

[0027] When the locking block 7 needs to be pulled, the connecting rod 11 is rotated so that one end of the pull rope 10 is wound around it, and the other end of the pull rope 10 pulls the mounting plate 9 inward. This causes the mounting plate 9 to compress the elastic element 12 and deform, thus causing the locking block 7 to slide into the mounting groove 8. Conversely, by releasing the connecting rod 11, the elastic element 12 is reset, causing the elastic element 12 to move outward along with the mounting plate 9, so that the mounting plate 9 pushes the locking block 7 to engage with the inside of the locking groove 6.

[0028] Example 3: Based on Example 2, in order to facilitate the disassembly of the anti-slip mat 13, two limiting blocks 14 are fixedly connected to the inner side of the anti-slip mat 13. The inner side of the limiting block 14 is provided with a slot 16, and the inner wall of the slot 16 is provided with a groove 17. Limiting grooves 15 are provided on both the upper and lower sides of the handle 5. The limiting block 14 is slidably connected to the inside of the limiting groove 15, so that the anti-slip mat 13 can move with the handle 5. Multiple inserts 18 are fixedly connected to the inside of the limiting groove 15. The inserts 18 are inserted into the inside of the corresponding slot 16, so that the limiting block 14 can be limited. Two protrusions 19 are fixedly connected to the outside of the inserts 18. The protrusions 19 are slidably connected to the inside of the slot 16. The protrusions 19 fit into the inside of the corresponding groove 17, so that the limiting block 14 can be stably limited.

[0029] When the anti-slip pad 13 needs to be installed, the anti-slip pad 13 is placed on the handle 5, so that the limiting block 14 can slide into the inside of the limiting groove 15, so that the insert block 18 can drive the protrusion 19 to slide into the inside of the slot 16, so that the protrusion 19 can be squeezed and deformed. When the insert block 18 and the slot 16 are engaged, the protrusion 19 can perform a reset movement, so that the protrusion 19 can fit into the inside of the groove 17, so that the anti-slip pad 13 can be stably installed.

[0030] The working process of this utility model is as follows:

[0031] When handle 5 is needed, the anti-slip pad 13 is fitted onto handle 5, allowing the limiting block 14 to slide into the limiting groove 15. This causes the insert block 18 to drive the protrusion 19 into the slot 16, resulting in the protrusion 19 being compressed and deformed. After the insert block 18 engages with the slot 16, the protrusion 19 returns to its original position, fitting against the inside of the groove 17. This ensures the anti-slip pad 13 is stably installed. When handle 5 is not needed, rotating the connecting rod 11 allows one end of the pull rope 10 to be wound around it, allowing the other end of the pull rope 10 to... The end can pull the mounting piece 9 to move inward, thereby causing the mounting piece 9 to compress the elastic element 12 and deform, and drive the locking block 7 to slide into the interior of the mounting groove 8. At this time, by rotating the handle 5 into the interior of the placement groove 3, the elastic element 12 can be reset by releasing the connecting rod 11, thereby causing the elastic element 12 to move outward with the mounting piece 9, so that the mounting piece 9 can push the locking block 7 to engage with the interior of the locking groove 6, thereby limiting the handle 5 to the interior of the placement groove 3. The placement stability after using the rotating rod 2 is better, so that the piano is not easy to shake when it is pushed, and the transportation safety is higher.

[0032] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0033] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0034] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A device for repairing upright pianos, characterized in that, The device includes a body (1), a rotating rod (2) is rotatably connected to the right side of the body (1), a placement groove (3) is provided inside the rotating rod (2), two rotating shafts (4) are rotatably connected inside the placement groove (3), a handle (5) is fixedly connected to the adjacent side of the two rotating shafts (4), two slots (6) are provided inside the rotating rod (2), a locking block (7) is locked inside the slot (6), the locking block (7) slides through the rotating shaft (4) and is slidably connected inside the handle (5), and an anti-slip pad (13) is sleeved on the outside of the handle (5).

2. The apparatus for repairing an upright piano according to claim 1, characterized in that, The handle (5) has two mounting slots (8) inside. The end of the locking block (7) away from the slot (6) is fixedly connected to a mounting piece (9). The end of the mounting piece (9) away from the locking block (7) is fixedly connected to a pull rope (10). The other end of the pull rope (10) is fixedly connected to a connecting rod (11). An elastic element (12) is sleeved on the outside of the connecting rod (11).

3. The apparatus for repairing an upright piano according to claim 2, characterized in that, The inner side of the anti-slip pad (13) is fixedly connected to two limiting blocks (14), the inner side of the limiting block (14) is provided with a slot (16), the inner wall of the slot (16) is provided with a groove (17), the upper and lower sides of the handle (5) are provided with limiting grooves (15), the inner side of the limiting groove (15) is fixedly connected to multiple inserts (18), and the outer side of the inserts (18) is fixedly connected to two protrusions (19).

4. The apparatus for repairing an upright piano according to claim 2, characterized in that, The card block (7) is slidably connected inside the mounting groove (8), and the mounting piece (9) is slidably connected inside the mounting groove (8).

5. The apparatus for repairing an upright piano according to claim 2, characterized in that, One end of the elastic element (12) is fixedly connected to the inner wall of the mounting groove (8), and the other end of the elastic element (12) is fixedly connected to the mounting piece (9).

6. The apparatus for repairing an upright piano according to claim 2, characterized in that, The pull rope (10) is slidably connected inside the mounting groove (8), and the connecting rod (11) is rotatably connected inside the handle (5).

7. The apparatus for repairing an upright piano according to claim 3, characterized in that, The limiting block (14) is slidably connected inside the limiting groove (15), and the insert (18) is inserted into the corresponding position slot (16).

8. The apparatus for repairing an upright piano according to claim 3, characterized in that, The protrusion (19) is slidably connected inside the slot (16), and the protrusion (19) fits into the interior of the corresponding groove (17).

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