Waterproof nut blind hole inspection device

By designing a waterproof nut blind hole inspection device, utilizing the airtight principle and a semi-cylindrical inspection platform, the problem of tedious and time-consuming manual inspection is solved, achieving rapid and accurate blind hole inspection, applicable to nuts of various specifications.

CN223741868UActive Publication Date: 2025-12-30SUZHOU CHANGLIYONG FASTENER CO LTD
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Patent Information

Application Number
CN202520334042.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-28
Publication Date
2025-12-30
Estimated Expiration
2035-02-28

AI Technical Summary

Technical Problem

The blind hole inspection of waterproof nuts is mostly done manually, one by one. This process is cumbersome, time-consuming, and prone to false positives or missed positives.

Method used

A device for inspecting blind holes in waterproof nuts was designed. It uses the principle of airtightness to determine the sealing performance of blind holes by observing the generation of air bubbles in the liquid. Combined with a semi-cylindrical testing platform and an air cylinder body, it achieves rapid testing and is suitable for waterproof nuts of different specifications.

Benefits of technology

It enables rapid and accurate blind hole detection, reduces human error, improves detection efficiency, has a wide range of applications, and meets the needs of large-scale production.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223741868U_ABST
Patent Text Reader

Abstract

The utility model discloses a waterproof nut blind hole inspection device which comprises a soaking box and an operation table arranged on the right side of the soaking box, a water outlet pipe is arranged on the outer portion of the lower portion of the right front side of the soaking box in a communicated mode, and a sliding cavity is formed in the middle of the left side of the operation table. A semi-cylindrical detection platform is arranged at the inner side position of the sliding cavity, a sleeve shaft is arranged at the inner position of the middle of the upper side of the semi-cylindrical detection platform, an air channel is formed in the inner side position of the middle of the semi-cylindrical detection platform, and through the ingenious structural design, the rapid detection process is achieved. An operator only needs to rotate the semi-cylindrical detection platform, waterproof nuts can be rapidly immersed in detection liquid, one-time detection can be completed in a short time by matching with inflation operation of the inflator body, the detection efficiency is greatly improved, compared with a traditional manual one-by-one detection mode, more waterproof nuts can be detected in unit time, and the detection efficiency is greatly improved. And the quality detection requirement in large-scale production is met.
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Description

TECHNICAL FIELD

[0001] The utility model belongs to waterproof nut blind hole inspection related technical field, specifically related to a waterproof nut blind hole inspection device. BACKGROUND

[0002] In the field of mechanical manufacturing and assembly, waterproof nuts are widely used, and the quality of their blind holes directly affects key performance such as waterproofing and fastening. If the blind hole has size deviation, internal defects, or other problems, it may cause sealing failure, nut loosening, affect normal operation of equipment, and even cause safety hazards. Therefore, it is crucial to strictly inspect the blind hole of the waterproof nut. Through advanced detection means, the quality of the blind hole is precisely controlled, which is a key link to ensure product reliability and prolong service life, and is of great significance to improve the overall quality of products.

[0003] In the prior art, the detection of the blind hole of the waterproof nut is mostly carried out by manual detection one by one, which is tedious and time-consuming. For example, when checking each nut manually, repeated observation and measurement are required, which is slow. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a waterproof nut blind hole inspection device to solve the problem of tedious operation process and time-consuming in the prior art, such as manual detection of each nut, which requires repeated observation and measurement and is slow.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a waterproof nut blind hole inspection device, comprising a water immersion tank and an operation table arranged at the right side of the water immersion tank;

[0006] A water outlet pipe is connected to the right front lower outer position of the water immersion tank;

[0007] A sliding cavity is formed in the left middle inner part of the operation table, a semi-cylindrical detection platform is arranged at the inner side of the sliding cavity, a sleeve shaft is arranged at the upper middle inner part of the semi-cylindrical detection platform, an air duct is formed in the middle inner side of the semi-cylindrical detection platform, a hollow screw rod is arranged at the left upper side of the semi-cylindrical detection platform, and an air cylinder body is arranged at the right upper side of the semi-cylindrical detection platform.

[0008] Preferably, a fixing block is protrusively arranged at the connecting position of the operation table and the sleeve shaft, and the sleeve shaft is connected to the semi-cylindrical detection platform by a fixed connection mode.

[0009] Preferably, the semi-cylindrical detection platform can rotate in the sliding cavity through the sleeve shaft, and the sliding cavity is a quarter semi-cylindrical cavity.

[0010] Preferably, the hollow screw is connected with the semi-cylindrical detection platform through a threaded connection mode, and a sealing ring is arranged at the connection position of the hollow screw and the semi-cylindrical detection platform for sealing.

[0011] Preferably, the hollow space in the hollow screw is communicated with the air channel, the air cylinder body comprises a sealing cylinder, a push rod, a sealing plug and a handle, and the air channel is arranged in the sealing cylinder and opens on the right side of the semi-cylindrical detection platform.

[0012] Preferably, the sealing cylinder is connected with the semi-cylindrical detection platform through a fixed connection mode, and handles are symmetrically arranged at the upper two end positions of the sealing cylinder.

[0013] Preferably, the sealing plug is arranged at the inner side position of the sealing cylinder, the push rod is arranged at the upper middle position of the sealing plug, and a sealing ring is arranged at the connection position of the push rod and the sealing cylinder for sealing treatment.

[0014] Compared with the prior art, the waterproof nut blind hole inspection device has the following beneficial effects:

[0015] 1. The device realizes a rapid detection process through a clever structure design. An operator only needs to rotate the semi-cylindrical detection platform, so as to quickly immerse the waterproof nut into a detection liquid, cooperate with the air cylinder body to perform a blowing operation, and complete one detection in a short time, thereby greatly improving the detection efficiency. Compared with a traditional manual detection mode, more waterproof nuts can be detected in a unit time, so that the quality detection demand in large-scale production is met.

[0016] 2. The detection is performed by using the air-tight principle, the sealing property of the blind hole of the waterproof nut is judged by observing whether bubbles are generated in the liquid, the mode is intuitive and accurate. As long as there is a tiny sealing defect in the blind hole, the bubbles generated by the gas escaping can be clearly observed, so that the missed detection or misjudgment caused by the subjective judgment error of the operator is avoided, and the reliability of the detection result is ensured.

[0017] 3. The device is provided with hollow screws of multiple specifications, and the hollow screws can be flexibly replaced according to waterproof nuts of different sizes. Whether it is a small precision waterproof nut or a large industrial waterproof nut, a corresponding adaptive hollow screw can be found for detection, so that the application range of the device is greatly widened, and the diversified detection demand of the sealing property of the blind hole of the waterproof nut in different industries and different products is met. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 FIG. 1 is a structural schematic view of the device in the utility model.

[0019] Figure 2 FIG. 2 is a structural schematic view of the device in the utility model. Figure 1Structure schematic diagram after the inner semicircular column detection platform rotates 90 degrees.

[0020] Figure 3 For the utility model Figure 1 Structure schematic diagram of half profile perspective.

[0021] Figure 4 For the utility model Figure 3 Structure schematic diagram after the inner circular area is enlarged.

[0022] Figure 5 For the utility model Figure 2 Structure schematic diagram of side perspective.

[0023] Figure 6 For the utility model Figure 5 Structure schematic diagram of half profile perspective.

[0024] In the figure: 1, water immersion tank, 2, operation table, 3, water outlet pipe, 4, fixed block, 5, sleeve shaft, 6, semicircular column detection platform, 7, hollow screw rod, 8, air channel, 9, air cylinder main body, 10, sliding cavity, 11, sealing cylinder, 12, push rod, 13, sealing plug, 14, handle rod. Specific implementation

[0025] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0026] The utility model provides a kind of waterproof nut blind hole inspection device as shown in Figures 1-6 Including water immersion tank 1 and the operation table 2 being set at the right side position of water immersion tank 1;

[0027] Water outlet pipe 3 is communicated and is set at the outer position of the right front side lower side of water immersion tank 1;

[0028] Sliding cavity 10 is set in the left side middle inside of operation table 2, semicircular column detection platform 6 is set at the inner side position of sliding cavity 10, sleeve shaft 5 is set at the upper side middle inside position of semicircular column detection platform 6, air channel 8 is set in the middle inner side position of semicircular column detection platform 6, hollow screw rod 7 is set at the left upper side position of semicircular column detection platform 6, and air cylinder main body 9 is set at the right upper side position of semicircular column detection platform 6.

[0029] As shown in Figures 1-6As shown, the fixed block 4 is arranged at the connecting position of the operating table 2 and the sleeve shaft 5, the sleeve shaft 5 is connected with the semi-cylindrical detection platform 6 in a fixed connection mode, the semi-cylindrical detection platform 6 can rotate in the sliding cavity 10 through the sleeve shaft 5, the sliding cavity 10 is a quarter semi-cylindrical cavity, the hollow screw 7 is connected with the semi-cylindrical detection platform 6 in a threaded connection mode, and a sealing ring is arranged at the connecting position of the hollow screw 7 and the semi-cylindrical detection platform 6 for sealing, the hollow space in the hollow screw 7 is communicated with the air channel 8, the air cylinder main body 9 includes a sealing cylinder 11, a push rod 12, a sealing plug 13 and a handle 14, the air channel 8 is arranged in the sealing cylinder 11 and opens on the right side of the semi-cylindrical detection platform 6, the sealing cylinder 11 is connected with the semi-cylindrical detection platform 6 in a fixed connection mode, the handle 14 is symmetrically arranged at the upper two end positions of the sealing cylinder 11, the sealing plug 13 is arranged at the inner side position of the sealing cylinder 11, the push rod 12 is arranged at the upper middle position of the sealing plug 13, and a sealing ring is arranged at the connecting position of the push rod 12 and the sealing cylinder 11 for sealing treatment.

[0030] In this embodiment, the user first places the water immersion tank 1 and the operating table 2 in a stable and suitable working area, and ensures that the positions of the two are relatively fixed, so as to facilitate subsequent operation.

[0031] According to the specifications of the waterproof nut to be detected, a matching hollow screw 7 is selected. Different specifications of waterproof nuts have different parameters such as thread size and blind hole depth, and it is necessary to ensure that the hollow screw 7 can be tightly connected with the waterproof nut.

[0032] Then, the hollow screw 7 is installed on the semi-cylindrical detection platform 6 in a threaded connection mode, and a sealing ring is installed at the connecting position to ensure the sealing property of the connecting part and prevent gas leakage from affecting the detection result. The hollow space in the hollow screw 7 needs to be communicated with the air channel 8 to ensure smooth flow of gas.

[0033] Assemble the air cylinder main body 9, install the sealing plug 13 inside the sealing cylinder 11, install the push rod 12 at the upper middle position of the sealing plug 13, and install a sealing ring at the connecting position of the push rod 12 and the sealing cylinder 11 for sealing treatment. The handle 14 is symmetrically installed at the upper two end positions of the sealing cylinder 11 for convenient operation by the operator. The sealing cylinder 11 is installed on the semi-cylindrical detection platform 6 in a fixed connection mode, so that the air channel 8 opens on the right side of the semi-cylindrical detection platform 6 and is located in the sealing cylinder 11, and the air cylinder main body 9 and the semi-cylindrical detection platform 6 form a complete airtight detection system.

[0034] Preferably, the user first fills the water immersion tank 1 with an appropriate amount of liquid, and the selection of the liquid can be determined according to actual detection requirements and the material of the waterproof nut, and clean water or a specific detection liquid can be selected.

[0035] The waterproof nut to be tested is connected with the hollow screw rod 7 installed on the semi-cylindrical detection platform 6, and the connection is ensured to be tight and free from looseness.

[0036] The operator holds the sleeve shaft 5 of the semi-cylindrical detection platform 6 and slowly rotates the semi-cylindrical detection platform 6, so that the hollow screw rod 7 and the connected waterproof nut gradually immerse in the liquid in the water immersion tank 1. During the rotation, the operation is kept stable to avoid the liquid from generating violent fluctuation and affecting the detection result.

[0037] When the waterproof nut is completely immersed in the liquid, the operator holds the handle 14 of the air cylinder body 9 with both hands and pushes the push rod 12 up and down. Through the movement of the push rod 12, the gas in the sealing cylinder 11 is pushed to one side, and the gas enters the blind hole of the waterproof nut through the air channel 8 and the hollow screw rod 7.

[0038] During the pushing of the air cylinder body 9, the operator carefully observes the condition of the liquid in the water immersion tank 1. If the waterproof nut blind hole has good sealing performance, no bubbles should be generated in the liquid in the water immersion tank 1; if the blind hole has sealing defects, the gas will escape from the defects and form bubbles in the liquid. According to the position, quantity and size of the bubbles, the sealing defect degree and position of the waterproof nut blind hole can be preliminarily judged.

[0039] After one detection is completed, the semi-cylindrical detection platform 6 is reversely rotated, and the waterproof nut is taken out from the water immersion tank 1. If multiple waterproof nuts need to be detected, the above operation steps can be repeated. After the detection is completed, the liquid in the water immersion tank 1 can be discharged through the water outlet pipe 3.

[0040] Finally, it should be noted that the above only describes the preferred embodiments of the present application and is not used to limit the present application. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or equivalently replace some technical features, and any modification, equivalent replacement, improvement, 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 waterproof nut blind hole inspection device, comprising a water immersion tank (1) and an operation table (2) arranged at the right side of the water immersion tank (1); a water outlet pipe (3) is arranged at the lower right side of the water immersion tank (1); a sliding cavity (10) is arranged at the left side of the operation table (2); a semi-cylindrical detection platform (6) is arranged at the inner side of the sliding cavity (10); a sleeve shaft (5) is arranged at the upper side of the semi-cylindrical detection platform (6); an air duct (8) is arranged at the inner side of the semi-cylindrical detection platform (6); a hollow screw rod (7) is arranged at the left side of the semi-cylindrical detection platform (6); and an air cylinder body (9) is arranged at the right side of the semi-cylindrical detection platform (6). A fixed block (4) is arranged at the connecting position of the operation table (2) and the sleeve shaft (5); and the sleeve shaft (5) is connected to the semi-cylindrical detection platform (6) in a fixed connection mode. characterized in that The semi-cylindrical detection platform (6) can rotate in the sliding cavity (10) through the sleeve shaft (5); and the sliding cavity (10) is a quarter semi-cylindrical cavity.

2. A blind hole inspection device for a waterproofing nut according to claim 1, wherein: The hollow screw rod (7) is connected to the semi-cylindrical detection platform (6) in a threaded connection mode; and a sealing ring is arranged at the connecting position of the hollow screw rod (7) and the semi-cylindrical detection platform (6) to seal them.

3. A blind hole inspection device for a waterproofing nut according to claim 2, wherein: The hollow space of the hollow screw rod (7) is connected to the air duct (8); the air cylinder body (9) comprises a sealing cylinder (11), a push rod (12), a sealing plug (13) and a handle rod (14); and the air duct (8) is arranged in the sealing cylinder (11) and opens to the right side of the semi-cylindrical detection platform (6).

4. A blind hole inspection device for a waterproofing nut according to claim 3, wherein: The sealing cylinder (11) is connected to the semi-cylindrical detection platform (6) in a fixed connection mode; and the handle rod (14) is symmetrically arranged at the upper side of the sealing cylinder (11).

5. A blind hole inspection device for a waterproofing nut according to claim 4, wherein: A sealing plug (13) is arranged at the inner side of the sealing cylinder (11); a push rod (12) is arranged at the upper side of the sealing plug (13); and a sealing ring is arranged at the connecting position of the push rod (12) and the sealing cylinder (11) to seal them.

6. A blind hole inspection device for a waterproofing nut according to claim 5, wherein: ​ 7. A blind hole inspection device for a waterproofing nut according to claim 6, wherein: ​