An on-line air leakage testing device for an OWS earpiece

Abstract

The utility model discloses a kind of OWS earphone receiver online air leakage testing device, belong to earphone detection equipment technical field;The device includes supporting mechanism and lower module quick-release mechanism, the supporting mechanism includes machine body, the lower module quick-release mechanism includes lower base and lower mould detachably installed in the lower base, the fixed column outer wall of the lower mould bottom is equipped with clamping groove, the lower base inside is slidably connected with clamping tongue, the clamping tongue is fixedly connected with first rack, the rotating shaft rotationally connected in the lower base is equipped with gear meshing with first rack, first spring for resetting is also sleeved on the rotating shaft. The utility model passes through gear rack linkage mechanism and pull rod locking mechanism, solve the problem that mould is fixed using screw in prior art, lead to the problem of complicated dismounting, long time of changing type, without tool can quickly replace upper and lower mould, improve production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of headphone testing equipment technology, and in particular to an online air leakage test device for OWS headphone receivers. Background Technology

[0002] In the manufacturing process of OWS headphones, the airtightness test of the receiver is a key step to ensure product quality. In order to detect air leakage in the receiver, it is usually necessary to place it in a specific test mold, and then fill it with air to monitor the pressure by closing the upper and lower molds to form a sealed cavity.

[0003] However, with the rapid pace of electronic product upgrades, production lines need to frequently change test molds for different product models to meet production demands. Existing online leak testing devices mostly use bolts for rigid connection when fixing the upper and lower molds. Although this traditional fixing method is stable, when it is necessary to change the mold, operators must use tools such as wrenches to disassemble and install the screws one by one. This is not only cumbersome and laborious, requiring high technical skills from the operators, but also leads to excessively long mold replacement time, causing the entire production line to be in a state of shutdown and waiting for a long time, reducing production efficiency and equipment utilization.

[0004] Therefore, this utility model proposes an online air leakage test device for OWS headset receivers to address the shortcomings of existing technologies. Utility Model Content

[0005] In view of the problems in the existing technology, the online air leakage test device for OWS headset receivers generally uses screws to fix the mold, which leads to cumbersome mold disassembly and assembly process when changing product models, high difficulty in manual maintenance, and excessive downtime for production line changeover. The present invention aims to provide an OWS headset receiver online air leakage test device with an improved structure and quick mold disassembly and assembly function, which can effectively solve the above problems.

[0006] This utility model provides an online air leakage test device for an OWS headset receiver, including a support mechanism and a lower module quick-release mechanism. The support mechanism includes a body, and the lower module quick-release mechanism includes a lower base fixedly connected to the body and a lower mold detachably installed on the top of the lower base.

[0007] The lower mold has a fixedly extending fixed column on its bottom surface. The outer wall of the fixed column has a locking groove. The lower base has a slidingly connected latch that matches the latch. The side wall of the latch is fixedly connected to a first rack. The lower base has a vertically arranged rotating shaft rotatably connected to its interior. The outer wall of the rotating shaft has a gear that meshes with the first rack. The outer wall of the rotating shaft is also fitted with a first spring for resetting. One end of the first spring is fixedly connected to the inner wall of the lower base, and the other end is fixedly connected to the outer wall of the rotating shaft.

[0008] Furthermore, the latch is also fixedly connected to a transmission column. The end of the transmission column away from the latch extends to the outside of the lower base and is fixedly connected to a pull ring. By pulling the pull ring, the first rack moves and drives the gear to rotate, thereby overcoming the resistance of the first spring and controlling the extension and retraction of the latch, thus realizing the rapid unlocking and locking of the lower mold.

[0009] Preferably, in order to achieve bidirectional synchronous locking of the lower mold to improve force balance, a second rack is slidably connected inside the lower base. The second rack is located on the side of the gear away from the first rack and meshes with the gear. Another latch is fixedly connected to the end of the second rack. The first rack and the second rack are arranged parallel to each other, so that when the gear rotates, the two latches move synchronously in opposite directions.

[0010] Preferably, a cylinder is fixedly connected to the top of the body, and the OWS headset receiver online air leakage test device further includes an upper module quick-release mechanism connected to the output end of the cylinder. The upper module quick-release mechanism includes an upper base fixedly connected to the output end of the cylinder and an upper mold detachably installed at the bottom of the upper base. The cylinder is used to drive the upper module quick-release mechanism to perform lifting and lowering actions.

[0011] Preferably, in order to achieve quick assembly and disassembly of the upper mold, a locking groove is provided on the front of the upper mold, a locking tongue is slidably connected inside the upper base, the locking tongue is adapted to be inserted into the locking groove, a transmission plate is slidably connected inside the upper base, the transmission plate is fixedly connected to the locking tongue, a pull rod is provided above the upper base, the bottom end of the pull rod passes through the upper base and is fixedly connected to the transmission plate.

[0012] Preferably, in order to ensure the automatic reset and locking of the locking tongue, a second limiting post is fixedly connected to the inner wall of the upper base, the transmission plate is slidably sleeved on the outer wall of the second limiting post, a second spring is sleeved on the outer wall of the second limiting post, the two ends of the second spring abut against the inner wall of the upper base and the outer wall of the transmission plate respectively, and the second spring is always in a compressed state to push the locking tongue outward.

[0013] Preferably, in order to further improve the positioning accuracy and connection rigidity of the upper mold, a positioning groove is provided on the back of the upper mold, and a fixed square post is provided inside the upper base at the rear to engage with the positioning groove, thereby forming a front-to-back fixed structure in cooperation with the locking tongue.

[0014] Preferably, in order to ensure the stability of the upper module during the lifting process, a first limiting post is fixedly connected to the top of the machine body, and the upper base is slidably connected to the outer wall of the first limiting post.

[0015] Preferably, the front side wall of the machine body is fixedly connected to an operating button for controlling the cylinder, and the side wall of the machine body is provided with an air supply hole, which is connected to the cavity of the lower mold and the upper mold for inputting test gas.

[0016] This utility model has the following beneficial effects: 1. This utility model, by setting up a quick-release mechanism for the lower module and a quick-release mechanism for the upper module, utilizes the gear rack linkage and spring reset principle to achieve rapid locking and releasing of the mold. This solves the problem in the existing technology where the OWS headset receiver testing device usually uses screws to fix the mold when changing different models of products, resulting in cumbersome mold disassembly and assembly, high maintenance difficulty, and long downtime for production line changeovers. It achieves the technical effect of quickly changing the upper and lower molds without the need for additional tools, reducing the labor intensity of operators, improving testing efficiency, and reducing equipment downtime for maintenance.

[0017] 2. This utility model solves the problem of uneven force or positioning deviation of the mold caused by the existing single-sided fixing structure by setting a double rack centering mechanism inside the lower base. The central gear simultaneously meshes and drives the parallel racks on both sides to move in opposite directions, causing the two side latches to tighten inward or open outward synchronously. This achieves the effect of automatic centering and bidirectional synchronous clamping when locking the lower mold, ensuring that the mold is subjected to uniform force under the high pressure environment of the inflation test, effectively preventing the mold from tilting or loosening on one side, and ensuring the accuracy of the airtightness test data.

[0018] 3. This utility model, by adopting a rear-fixed and front-locked cooperative structure in the quick-release mechanism of the upper module, uses the positioning groove on the back of the upper mold and the fixed square column inside the base as a fulcrum, and then drives the locking tongue through the front pull rod to lock it, solves the problems of difficult alignment when the upper mold is suspended and insufficient connection rigidity that may exist when relying solely on the locking tongue for fixation. It achieves the technical effects of simplifying the installation steps of the upper mold, assisting in quick positioning, and using the fixed square column to share the shearing force when the cylinder is pressed down, thereby improving the overall structural connection rigidity and durability. Attached Figure Description

[0019] Figure 1This is a three-dimensional structural diagram of an online air leakage test device for an OWS headset receiver proposed in this utility model; Figure 2 This is a schematic diagram of the main body structure of an online air leakage test device for an OWS headset receiver proposed in this utility model; Figure 3 This is a schematic diagram of the limiting column part of the online air leakage test device for an OWS headset receiver proposed in this utility model; Figure 4 This is a schematic diagram of the operation button part of the online air leakage test device for an OWS headset receiver proposed in this utility model; Figure 5 for Figure 3 Enlarged view of point A in the middle; Figure 6 for Figure 4 Enlarged view of section B in the middle.

[0020] Legend: 1. Support mechanism; 101. Body; 102. Operation button; 103. Cylinder; 104. First limit post; 105. Air inlet; 2. Lower module quick-release mechanism; 201. Lower mold; 202. Fixing post; 203. Slot; 204. Tongue; 205. First rack; 206. Pull ring; 207. Transmission post; 208. Gear; 209. Rotating shaft; 210. First spring; 211. Lower base; 212. Second rack; 3. Upper module quick-release mechanism; 301. Upper base; 302. Upper mold; 303. Pull rod; 304. Transmission plate; 305. Second spring; 306. Second limit post; 307. Locking tongue; 308. Locking groove. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please refer to Figures 1 to 6 This utility model provides an online air leakage test device for OWS headset receivers, which aims to solve the problem that in the prior art, OWS headset receiver test devices usually use screws to lock when changing product molds, which leads to cumbersome mold disassembly and assembly, high maintenance difficulty, and long production line downtime for model changeover.

[0023] like Figure 1 and Figure 2As shown, the OWS headset receiver online air leakage test device mainly includes a support mechanism 1 and a lower module quick-release mechanism 2 set inside the support mechanism 1. The support mechanism 1 serves as the mounting base and bearing platform of the overall device. Its main body is the body 101. The front side wall of the body 101 is fixed with an operation button 102 by bolts or welding. The operation button 102 is used for the operator to control the start of the device and the action of the cylinder 103. The top of the body 101 is fixed with a cylinder 103 by bolts. The cylinder 103 serves as a power source to drive the lifting action of the subsequent upper mold 302. The top of the body 101 is also fixed with a first limiting post 104 extending vertically upward. The first limiting post 104 is used to guide and limit the lifting component to prevent displacement during movement. In addition, the side wall of the body 101 is provided with an air inlet 105. The air inlet 105 is connected to the mold cavity through an internal pipeline to input test gas into the test cavity to obtain pressure data.

[0024] The lower module quick-release mechanism 2 includes a lower base 211 fixedly connected to the bottom surface inside the body 101, and a lower mold 201 detachably installed on the top of the lower base 211. The lower mold 201 is used to place the OWS headset receiver product to be tested. In order to achieve quick positioning and locking of the lower mold 201, the bottom surface of the lower mold 201 is welded or integrally formed with a downwardly extending fixing post 202. The outer wall of the fixing post 202 is provided with a slot 203. The upper surface of the lower base 211 is provided with an insertion port that matches the fixing post 202. The interior of the lower base 211 is provided with a locking mechanism. The linkage assembly of the fixed column 202 includes a rotating shaft 209 rotatably connected to the center of the lower base 211 for bidirectional locking to achieve force balance. A gear 208 is fixedly connected to the outer wall of the rotating shaft 209 by a key. A first rack 205 and a second rack 212 are respectively meshed on both sides of the gear 208. The ends of the first rack 205 and the second rack 212 are respectively fixedly connected to latches 204. The two latches 204 are slidably connected to the guide grooves inside the lower base 211 and can be locked into the latches 203 on both sides of the fixed column 202.

[0025] like Figure 5As shown, in order to give the mechanism the ability to automatically reset and lock, a first spring 210 is sleeved on the outer wall of the rotating shaft 209. The first spring 210 is a torsion spring, and its two ends are fixed to the inner wall of the lower base 211 and the outer wall of the rotating shaft 209, respectively. The elastic force forces the gear 208 to rotate, thereby driving the latches 204 on both sides to tighten inward. In order to facilitate manual unlocking, a transmission column 207 is fixedly connected to one of the latches 204 or the first rack 205. The transmission column 207 passes outward through the side wall of the lower base 211 and is fixedly connected to a pull ring 206. When the operator pulls the pull ring 206 outward, the first rack 205 drives the gear 208 to rotate, thereby driving the second rack 212 to move in the opposite direction, so that the two latches 204 open synchronously to release the fixing column 202.

[0026] The upper module quick-release mechanism 3 has an upper base 301. The top surface of the upper base 301 is fixedly connected to the output end of the cylinder 103. The side of the upper base 301 is slidably sleeved on the outer wall of the first limiting post 104 through a linear bearing. The bottom of the upper base 301 is provided with a detachable upper mold 302. The back of the upper mold 302 is provided with a positioning groove, and the front of the upper mold 302 is provided with a locking groove 308. Correspondingly, a fixed square post matching the size of the positioning groove is fixedly provided at the rear of the upper base 301. A locking component that can move back and forth is provided at the front of the upper base 301.

[0027] like Figure 6 As shown, the locking assembly includes a locking tongue 307 slidably connected to the inner cavity of the upper base 301. The front end of the locking tongue 307 is adapted to be inserted into the locking groove 308. The rear end of the locking tongue 307 is fixedly connected to a transmission plate 304. A horizontally extending second limiting post 306 is fixedly connected to the inner wall of the upper base 301. The transmission plate 304 is slidably sleeved on the outer wall of the second limiting post 306. A second spring 305 in a compressed state is also sleeved on the outer wall of the second limiting post 306. The second spring 305 abuts against the inner wall of the upper base 301 and the transmission plate 304, continuously pushing the locking tongue 307 to maintain the locked state. A pull rod 303 is provided above the upper base 301. The bottom end of the pull rod 303 vertically penetrates the top wall of the upper base 301 and is fixedly connected to the transmission plate 304. Pulling the pull rod 303 upward can drive the transmission plate 304 to compress the second spring 305 and drive the locking tongue 307 to move backward to unlock.

[0028] Based on the above embodiments, in order to improve the ease of installation and connection rigidity of the upper mold 302, the upper mold 302 and the upper base 301 adopt a rear-fixed and front-locked cooperation method. During installation, the operator first tilts the positioning groove on the back of the upper mold 302 into the fixed square column inside the upper base 301, and pushes the front end of the upper mold 302 upward with this as a fulcrum. Then, the pull rod 303 is released, and the locking tongue 307 automatically engages with the locking groove 308 under the action of the second spring 305. This design uses the fixed square column to share the shearing force when the cylinder 103 is pressed down, which improves the durability of the overall structure. In addition, in order to facilitate intuitive control by the operator, multiple operation buttons 102 on the front side wall of the body 101 correspond to the power supply, cylinder 103 action and inflation test functions, respectively. The air outlet 105 is connected to the air passage interface of the upper and lower molds through a hose. When the mold is closed, the equipment can automatically pressurize and monitor the pressure decay, thereby completing the online air leakage detection of the OWS headset receiver.

[0029] The working principle of this OWS headset receiver online air leakage test device is as follows: When using the OWS headset receiver online leakage test device for testing, first select the corresponding lower mold 201 and upper mold 302 according to the specifications of the product under test. When installing the lower mold 201, the operator pulls the pull ring 206 located on the side wall of the lower base 211 outward. The pull ring 206 drives the transmission column 207 and the first rack 205 to move outward. The first rack 205 drives the gear 208 meshing with it to rotate around the rotating shaft 209. The rotation of the gear 208 synchronously drives the second rack 212 to move in the opposite direction, so that... The two latches 204 connected to the ends of the first rack 205 and the second rack 212 retract synchronously into the lower base 211. At this time, the first spring 210 on the rotating shaft 209 is twisted and stored. Then, the fixing post 202 at the bottom of the lower mold 201 is inserted into the insertion port of the lower base 211. The pull ring 206 is released, and the first spring 210 releases its elastic force to drive the gear 208 to rotate. Then, through the rack and pinion transmission, the two latches 204 are pushed into the slots 203 of the fixing post 202, thus completing the automatic centering and locking of the lower mold 201.

[0030] Next, install the upper mold 302. Control the cylinder 103 via the operating button 102 to push the upper base 301 down along the first limiting post 104 to a suitable height. Pull the pull rod 303 upwards. The pull rod 303 drives the transmission plate 304 to slide backwards along the second limiting post 306 and compress the second spring 305, causing the locking tongue 307 to retract into the upper base 301. This engages the positioning groove on the back of the upper mold 302 with the fixed square post inside the upper base 301. Then push the front end of the upper mold 302 in, release the pull rod 303, and the second spring 305 rebounds, pushing the transmission plate 302 back into place. The moving plate 304 and the locking tongue 307 are reset, so that the locking tongue 307 is engaged in the locking groove 308 on the front of the upper mold 302, thus fixing the upper mold 302. Finally, the receiver to be tested is placed into the lower mold 201, and the control cylinder 103 is pressed down to close the mold. Air is supplied through the air outlet 105 to perform an airtightness test. After the test is completed, the above pulling action is repeated to quickly disassemble the mold. Through the cooperation of the lower module quick-release mechanism 2 and the upper module quick-release mechanism 3, this utility model effectively simplifies the difficulty of machine maintenance, lowers the operating threshold, and reduces downtime.

[0031] The above description is only a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. An online air leakage test device for an OWS headset receiver, comprising a support mechanism (1) and a lower module quick-release mechanism (2), wherein the support mechanism (1) comprises a body (101), and the lower module quick-release mechanism (2) comprises a lower base (211) fixedly connected inside the body (101) and a lower mold (201) detachably installed on the top of the lower base (211). Its characteristics are: The bottom surface of the lower mold (201) is fixedly connected to a fixing post (202). The outer wall of the fixing post (202) is provided with a slot (203). The interior of the lower base (211) is slidably connected to a latch (204). The latch (204) is adapted to fit into the slot (203). The side wall of the latch (204) is fixedly connected to a first rack (205). The interior of the lower base (211) is rotatably connected to a rotating shaft (209). The outer wall of the rotating shaft (209) is fixedly connected to a first rack (205). A gear (208) meshes with a rack (205), and a first spring (210) is sleeved on the outer wall of the rotating shaft (209). One end of the first spring (210) is fixedly connected to the inner wall of the lower base (211), and the other end is fixedly connected to the outer wall of the rotating shaft (209). A transmission column (207) is fixedly connected to the latch (204), and one end of the transmission column (207) away from the latch (204) extends to the outer side of the lower base (211) and is fixedly connected to a pull ring (206).

2. The OWS headset receiver online air leakage test device according to claim 1, characterized in that, The lower base (211) is also slidably connected to a second rack (212), which meshes with the gear (208) on the side away from the first rack (205). The end of the second rack (212) is fixedly connected to another latch (204), and the first rack (205) and the second rack (212) are arranged parallel to each other.

3. The online air leakage test device for an OWS headset receiver according to claim 1, characterized in that, A cylinder (103) is fixedly connected to the top of the body (101). The device also includes an upper module quick-release mechanism (3) connected to the output end of the cylinder (103). The upper module quick-release mechanism (3) includes an upper base (301) fixedly connected to the output end of the cylinder (103) and an upper mold (302) detachably installed at the bottom of the upper base (301).

4. The online air leakage test device for an OWS headset receiver according to claim 3, characterized in that, The upper mold (302) has a locking groove (308) on its front side. The upper base (301) has a locking tongue (307) that is slidably connected inside. The locking tongue (307) is adapted to be inserted into the locking groove (308). The upper base (301) has a transmission plate (304) that is slidably connected inside. The transmission plate (304) is fixedly connected to the locking tongue (307). The upper base (301) has a pull rod (303) on its upper side. The bottom end of the pull rod (303) passes through the upper base (301) and is fixedly connected to the transmission plate (304).

5. The online air leakage test device for an OWS headset receiver according to claim 4, characterized in that, The inner wall of the upper base (301) is fixedly connected to a second limiting post (306), and the transmission plate (304) is slidably sleeved on the outer wall of the second limiting post (306). The outer wall of the second limiting post (306) is sleeved with a second spring (305), and the two ends of the second spring (305) abut against the inner wall of the upper base (301) and the outer wall of the transmission plate (304) respectively.

6. The online air leakage test device for an OWS headset receiver according to claim 3, characterized in that, The upper mold (302) has a positioning groove on its back side, and the upper base (301) has a fixed square post inside the rear that engages with the positioning groove.

7. The online air leakage test device for an OWS headset receiver according to claim 3, characterized in that, The top of the body (101) is fixedly connected to a first limiting post (104), and the upper base (301) is slidably connected to the outer wall of the first limiting post (104).

8. The online air leakage test device for an OWS headset receiver according to claim 3, characterized in that, The front side wall of the machine body (101) is fixedly connected to an operating button (102) for controlling the cylinder (103). The side wall of the machine body (101) is provided with an air supply hole (105), which is connected to the lower mold (201) and the upper mold (302).

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