An accordion air tightness detection device

Abstract

The utility model provides a kind of accordion airtightness detection device, it is related to accordion airtightness detection technical field, and it includes: detection mechanism;The detection mechanism includes gas delivery assembly, gas pressure component, connecting component, guide component, engagement assembly and closed component;The connecting component is slidably connected with detection box by guide component, and the gas delivery assembly is connected with accordion by connecting component;The gas delivery assembly includes detection box, sealing cover, gas pipe, air pump and outlet tube;The gas pressure component includes connecting pipe, transparent water storage cylinder and detection cavity;The connecting component includes connector, arc slot, slot, lock hole, sealing connecting plate, plug connector, adaptive block, insertion rod, first spring and lock rod.The utility model can be directly placed in detection box with the accordion to be detected to carry out fast airtightness detection, and it is not necessary to detect by artificial, and the efficiency of detection is higher and better.

Description

Technical Field

[0001] This utility model relates to the field of accordion airtightness testing technology, and in particular to an accordion airtightness testing device. Background Technology

[0002] The accordion is characterized by its wide tonal range, rich variation, ability to simulate various timbres, ease of learning, small size, and portability. Therefore, the accordion is suitable for players of all ages for personal enjoyment and can be easily taken to schools and theaters for performances. Accordion sound is produced by the player pushing and pulling the bellows, creating air pressure and airflow that vibrates the reeds. To improve the quality of the accordion, a high degree of airtightness is required during manufacturing to ensure accurate and beautiful tone production.

[0003] Currently, most common methods for testing the air tightness of accordions involve manual testing. During the testing process, methods include pressing the bellows to listen for leaks, applying soapy water to observe the formation of bubbles, or relying on the player's touch to judge. Manual testing is highly subjective, depends on the operator's experience, cannot quantify the degree of leakage, and soapy water can easily contaminate the internal parts of the instrument. As a result, the testing efficiency is low and the overall practicality is poor. Utility Model Content

[0004] In view of the shortcomings of the prior art, the purpose of this utility model embodiment is to provide an accordion air tightness testing device, which can solve the technical problems of the present invention. Currently, the common method of accordion air tightness testing is to use manual testing methods. During the testing process, the air tightness of the accordion is tested by pressing the bellows to listen for air leakage, applying soapy water to observe the formation of bubbles, or judging by the feel of the player. Manual testing is highly subjective, relies on the experience of the operator, cannot quantify the degree of air leakage, and soapy water easily contaminates the internal parts of the instrument, resulting in low testing efficiency and poor overall practicality.

[0005] This utility model embodiment proposes an accordion airtightness testing device, including: a testing mechanism; The detection mechanism includes a gas delivery component, a gas pressure component, a connection component, a guide component, a locking component, and a sealing component; The connecting component is slidably connected to the detection box via the guide component, and the gas supply component is connected to the accordion via the connecting component; The gas delivery assembly includes a detection box, a sealing cover, a gas delivery pipe, a gas pump, and a gas outlet pipe; The pneumatic assembly includes a connecting pipe, a transparent water storage tank, and a detection chamber; The connection assembly includes a connector, an arc groove, a slot, a lock hole, a sealing connection plate, a plug, an adapter block, a plug rod, a first spring, and a lock rod.

[0006] Optionally, the guiding component includes a guide groove and a guide block; The guide grooves are symmetrically distributed along the vertical center line of the detection box, and the guide grooves and the detection box form an integrated structure. The guide blocks are symmetrically arranged on both sides of the sealing connection plate, and the outer diameter of the guide blocks is adapted to the inner diameter of the guide groove.

[0007] Optionally, the engaging assembly includes a slot, a sealing plate, and a positioning hole; The sealing plate is made of rubber and is symmetrically distributed along the vertical center line of the testing box.

[0008] Optionally, the sealing assembly includes a sealing strip, a retaining plate, a sealing groove, a second spring, a positioning rod, and an auxiliary sliding plate; The sealing strips are symmetrically arranged at both ends of the bottom of the sealing cover, and the sealing strips are made of rubber. The positioning rod is slidably connected to the clamping plate via a second spring, and the outer diameter of the positioning rod is adapted to the inner diameter of the positioning hole.

[0009] Optionally, the arc-shaped grooves are arranged in a circular array along the center point of the connector, and the arc-shaped grooves are connected to the slots, and the slots are connected to the lock holes.

[0010] Optionally, the adapter blocks are equidistantly distributed along the center point of the connector, and the adapter blocks are arc-shaped as a whole, with the curvature of the outer arc surface of the adapter block matching the curvature of the inner arc surface of the arc groove.

[0011] Optionally, the outer diameter of the sealing plate is adapted to the inner diameter of the sealing groove, and the sealing plates are symmetrically arranged on both sides of the top of the testing box. The beneficial effects of the technical solution provided by this utility model embodiment include at least the following: In this embodiment of the invention, a structure consisting of an air pump, air pipe, connecting pipe, and transparent water tank is adopted, which facilitates the direct placement of the accordion to be tested into the testing box for testing. This eliminates the need for manual application of soapy water to the accordion surface for testing, resulting in higher overall testing efficiency and better testing results. It effectively prevents the accordion surface from being corroded by moisture, thus avoiding any impact on the tone of the accordion during subsequent use, and improves overall practicality. Attached Figure Description

[0012] The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this invention. Throughout the drawings, the same reference numerals denote the same components. Obviously, the drawings described below are merely some embodiments of this invention, and those skilled in the art can obtain other drawings based on these drawings without any creative effort.

[0013] Figure 1 This is a schematic diagram of the structure of an accordion airtightness testing device provided in an embodiment of this utility model.

[0014] Figure 2 This is a top view of the test box structure of an accordion airtightness testing device provided in an embodiment of this utility model.

[0015] Figure 3 This is a schematic diagram of the internal structure of the testing box of an accordion airtightness testing device provided in an embodiment of this utility model.

[0016] Figure 4 This is a side view of the sealing connection plate of an accordion airtightness testing device provided in an embodiment of this utility model.

[0017] Figure 5 This is a side view of the connector structure of an accordion airtightness testing device provided in an embodiment of the present invention.

[0018] Figure 6 This is a bottom view of the sealing cover structure of an accordion airtightness testing device provided in an embodiment of this utility model.

[0019] Figure 7 This utility model provides an accordion airtightness testing device. Figure 6 Enlarged structural diagram at point A in the middle.

[0020] Explanation of reference numerals in the attached drawings: 1-Detection box; 2-Sealing cover; 3-Connecting pipe; 4-Transparent water tank; 5-Air supply pipe; 6-Air pump; 7-Air outlet pipe; 8-Connector; 9-Arc groove; 10-Slot; 11-Lock hole; 12-Sealing connecting plate; 13-Plug; 14-Adapter block; 15-Plug rod; 16-First spring; 17-Lock rod; 18-Detection chamber; 19-Guide groove; 20-Guide block; 21-Slot; 22-Sealing plate; 23-Positioning hole; 24-Sealing strip; 25-Clamping plate; 26-Sealing groove; 27-Second spring; 28-Positioning rod; 29-Auxiliary sliding plate. Detailed Implementation

[0021] To enable those skilled in the art to better understand the technical solutions in the embodiments of this utility model, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. It should be understood that these descriptions are exemplary only and are not intended to limit the scope of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

[0022] Furthermore, descriptions of well-known structures and techniques are omitted in the following description to avoid unnecessarily obscuring the concepts disclosed in this utility model.

[0023] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this invention.

[0024] Reference manual attached Figures 1 to 7 The structure of the accordion airtightness testing device provided in this embodiment includes: a testing mechanism.

[0025] The detection mechanism includes a gas delivery component, a gas pressure component, a connection component, a guide component, a locking component, and a sealing component.

[0026] The connecting component is slidably connected to the detection box 1 via the guide component, and the gas supply component is connected to the accordion via the connecting component.

[0027] The gas delivery assembly includes a detection box 1, a sealing cover 2, a gas delivery pipe 5, a gas pump 6, and a gas outlet pipe 7.

[0028] The pneumatic assembly includes a connecting pipe 3, a transparent water storage tank 4, and a detection chamber 18.

[0029] The connecting assembly includes a connector 8, an arc-shaped groove 9, a slot 10, a locking hole 11, a sealing connecting plate 12, a plug connector 13, an adapter block 14, a plug rod 15, a first spring 16, and a locking rod 17. The beneficial effects of the technical solution provided by this utility model embodiment include at least the following: In this embodiment of the invention, during use, the sealing cover 2 is opened beforehand. The accordion to be tested is then placed inside the testing box 1. As the accordion is placed in, the sealing connecting plates 12 on both sides move laterally. This lateral movement of the sealing connecting plates 12 pushes the connector 13, which in turn moves the adapter block 14 laterally, causing the adapter block 14 to be inserted into the inner side of the arc-shaped groove 9. When both adapter blocks 14 have moved the insertion rod 15 to the inner side of the arc-shaped groove 9, the connector 13 is rotated. This causes the adapter block 14 on its outer surface to rotate, pushing the insertion rod 15 and inserting one end of the insertion rod 15 into the slot 10. Inside the slot 10, before the insertion rod 15 is pushed into the slot 10, the locking rod 17 is squeezed. At this time, the locking rod 17 moves and squeezes the first spring 16, causing the first spring 16 to deform. The locking rod 17 then fully retracts to the inside of one end of the insertion rod 15. When the insertion rod 15 is fully engaged inside the slot 10 with the movement of the adapter block 14, the locking rod 17 moves to one side of the lock hole 11. At this time, the reverse force generated by the deformation of the first spring 16 will push the locking rod 17 in the opposite direction, thereby pushing one end of the locking rod 17 into the inside of the lock hole 11. This facilitates the subsequent positioning of the insertion rod 15, thereby achieving a stable connection between the connector 13 and the connector 8. The adapter block 14 and the plug rod 15 can effectively seal the accordion. After the connection is completed, the opening at the top of the test box 1 is sealed with the sealing cover 2. Then, the air pump 6 works to input air into the accordion through the air supply pipe 5 and the plug 13. If the accordion leaks air, the gas will be input into the inside of the transparent water tank 4 through the connecting pipe 3, causing the liquid stored in the transparent water tank 4 to churn and generate bubbles, so that it can be seen directly whether the accordion is leaking air. Conversely, the gas will be discharged through the air outlet pipe 7. It is worth noting that the input gas is nitrogen, which can effectively prevent moisture from entering the inside of the accordion and causing the inside of the accordion to become damp.

[0030] In one possible implementation, the guide assembly includes a guide groove 19 and a guide block 20.

[0031] The guide grooves 19 are symmetrically distributed along the vertical center line of the detection box 1, and the guide grooves 19 and the detection box 1 form an integrated structure.

[0032] The guide blocks 20 are symmetrically arranged on both sides of the sealing connection plate 12, and the outer diameter of the guide blocks 20 is matched with the inner diameter of the guide groove 19.

[0033] In this embodiment of the present invention, as the sealing connecting plate 12 moves laterally, the sealing connecting plate 12 will drive the guide block 20 to move laterally along the guide groove 19, thereby improving the stability of the sealing connecting plate 12 during the lateral movement process.

[0034] In one possible implementation, the engaging assembly includes a slot 21, a sealing plate 22, and a positioning hole 23.

[0035] The sealing plate 22 is made of rubber and is symmetrically distributed along the vertical center line of the test box 1.

[0036] In this embodiment of the utility model, when the sealing cover 2 is connected to the detection box 1, the sealing effect of the connection between the two can be improved by using the slot 21 and the sealing plate 22, so as to prevent air leakage. The positioning hole 23 is used for subsequent positioning of the sealing cover 2.

[0037] In one possible implementation, the sealing assembly includes a sealing strip 24, a retaining plate 25, a sealing groove 26, a second spring 27, a positioning rod 28, and an auxiliary sliding plate 29.

[0038] The sealing strips 24 are symmetrically arranged at both ends of the bottom of the sealing cover 2, and the sealing strips 24 are made of rubber.

[0039] The positioning rod 28 is slidably connected to the clamping plate 25 via the second spring 27, and the outer diameter of the positioning rod 28 is matched with the inner diameter of the positioning hole 23.

[0040] In this embodiment of the utility model, the sealing cover 2 will move longitudinally under the action of force. At this time, the longitudinal movement of the sealing cover 2 will cause the sealing strip 24 to contact the opening at the top of the detection box 1 and achieve the sealing treatment of the opening at the top of the detection box 1. At the same time, the card plate 25 will be input into the inner side of the detection box 1, and the sealing plate 22 will be input into the sealing groove 26. The positioning rod 28 will move to one side of the positioning hole 23. At this time, the reverse force generated by the deformation of the second spring 27 will push the positioning rod 28 in the opposite direction, thereby inputting one end of the positioning rod 28 into the inner side of the positioning hole 23, realizing the stable connection between the sealing cover 2 and the detection box 1. The auxiliary sliding plate 29 is used to improve the stability of the positioning rod 28 during the movement process.

[0041] In one possible implementation, the arc-shaped grooves 9 are arranged in a circular array along the center point of the connector 8, and the arc-shaped grooves 9 are connected to the slot 10, and the slot 10 is connected to the lock hole 11.

[0042] In this embodiment of the utility model, the opening of the arc groove 9 facilitates the subsequent engagement of the adapter block 14. Then, the adapter block 14 moves along the arc groove 9, driving the insertion rod 15 into the slot 10, thereby realizing the quick connection between the plug 13 and the connector 8.

[0043] In one possible implementation, the adapter blocks 14 are equidistantly distributed along the center point of the connector 13, and the adapter blocks 14 are arc-shaped as a whole, and the curvature of the outer arc surface of the adapter blocks 14 matches the curvature of the inner arc surface of the arc groove 9.

[0044] In this embodiment of the present invention, when the plug 13 drives the adapter block 14 to move and engage with the arc groove 9, the outer arc surface of the adapter block 14 will match the inner arc surface of the arc groove 9. Then, by rotating the plug 13, the arc groove 9 can drive the plug rod 15 to move and insert one end of the plug rod 15 into the inside of the slot 10.

[0045] In one possible implementation, the outer diameter of the sealing plate 22 is adapted to the inner diameter of the sealing groove 26, and the sealing plate 22 is symmetrically arranged on both sides of the top of the detection box 1.

[0046] In this embodiment of the utility model, when in use, the engagement of the sealing plate 22 with the sealing groove 26 can improve the sealing performance of the connection between the sealing cover 2 and the test box 1, preventing gas leakage during the subsequent test process and affecting the subsequent airtightness test of the accordion.

[0047] This utility model encompasses any substitutions, modifications, equivalent methods, and solutions made within the spirit and scope of this utility model. To provide the public with a thorough understanding of this utility model, specific details are described in detail in the preferred embodiments; however, those skilled in the art can fully understand this utility model without these details. Furthermore, to avoid unnecessary confusion regarding the essence of this utility model, well-known methods, processes, procedures, components, and circuits are not described in detail.

[0048] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model, and not to limit it. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present utility model. Any changes or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present utility model should be included within the protection scope of the present utility model.

Claims

1. An accordion airtightness testing device, characterized in that, include: Testing institutions; The detection mechanism includes a gas delivery component, a gas pressure component, a connection component, a guide component, a locking component, and a sealing component; The connecting component is slidably connected to the detection box via the guide component, and the gas supply component is connected to the accordion via the connecting component; The gas delivery assembly includes a detection box, a sealing cover, a gas delivery pipe, a gas pump, and a gas outlet pipe; The pneumatic assembly includes a connecting pipe, a transparent water storage tank, and a detection chamber; The connection assembly includes a connector, an arc groove, a slot, a lock hole, a sealing connection plate, a plug, an adapter block, a plug rod, a first spring, and a lock rod.

2. The accordion airtightness testing device according to claim 1, characterized in that, The guiding component includes a guide groove and a guide block; The guide grooves are symmetrically distributed along the vertical center line of the detection box, and the guide grooves and the detection box form an integrated structure. The guide blocks are symmetrically arranged on both sides of the sealing connection plate, and the outer diameter of the guide blocks is adapted to the inner diameter of the guide groove.

3. The accordion airtightness testing device according to claim 1, characterized in that, The engaging assembly includes a slot, a sealing plate, and a positioning hole; The sealing plate is made of rubber and is symmetrically distributed along the vertical center line of the testing box.

4. The accordion airtightness testing device according to claim 3, characterized in that, The sealing assembly includes a sealing strip, a retaining plate, a sealing groove, a second spring, a positioning rod, and an auxiliary sliding plate; The sealing strips are symmetrically arranged at both ends of the bottom of the sealing cover, and the sealing strips are made of rubber. The positioning rod is slidably connected to the clamping plate via a second spring, and the outer diameter of the positioning rod is adapted to the inner diameter of the positioning hole.

5. The accordion airtightness testing device according to claim 1, characterized in that, The arc-shaped grooves are arranged in a circular array along the center point of the connector, and the arc-shaped grooves are connected to the slots, and the slots are connected to the lock holes.

6. The accordion airtightness testing device according to claim 1, characterized in that, The adapter blocks are equidistantly distributed along the center point of the connector, and the adapter blocks are arc-shaped as a whole. The curvature of the outer arc surface of the adapter block matches the curvature of the inner arc surface of the arc groove.

7. The accordion airtightness testing device according to claim 3, characterized in that, The outer diameter of the sealing plate is matched with the inner diameter of the sealing groove, and the sealing plates are symmetrically arranged on both sides of the top of the test box.

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