Gasket detection device for nut seat

Abstract

The utility model relates to a gasket detection device for a nut seat, and belongs to the field of gasket detection. According to the technical scheme, the gasket detection device for the nut seat comprises a body, one end of the body is a detection end, the detection end can extend into the nut seat and can abut against a gasket, one side of the detection end is provided with a first contact, the first contact can make contact with the inner side wall of the nut seat, the body is further provided with a second contact, and the second contact can make contact with the inner side wall of the nut seat. The second contact is arranged above the first contact and can abut against the upper end face of the nut seat, a warning piece is further arranged on the body, when a worker forgets to place a gasket in the nut seat, the detection end continuously moves downwards, and the second contact moves downwards at the same time till the second contact makes contact with the upper end face of the nut seat. At the moment, an internal circuit forms a loop at the position of the first contact, the nut seat and the second contact, the warning piece is powered on, detection workers are prompted, detection can be completed accurately and rapidly, and the accuracy of gasket detection is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of gasket detection, in particular to a gasket detection device for a nut seat. Background Art

[0002] Bolts, as important components of mechanical connections, play an indispensable role in the assembly process. However, in actual operation, a gasket is usually installed under the nut or cap. The function of the gasket is to fill the tiny gap between the connecting parts and improve the stability and reliability of the connection.

[0003] However, in the design of modern aircraft, automobiles and other complex mechanical systems, weight reduction has become an important consideration. In order to reduce the overall weight, the outer diameter of many gaskets is designed to be smaller than the outer diameter of nuts and caps. Although this practice reduces the weight to a certain extent, it also has certain problems: in daily assembly practice, it is found that due to the thinness, small outer diameter and large number of gaskets, operators are prone to missing gaskets during installation. Once the gasket is missing, it will cause the connected parts to slip, separate or even loosen the fasteners, thus affecting the normal operation of the entire mechanical system. In addition, missing gaskets may also cause vibration, noise and other problems, posing a threat to the stability and safety of the equipment. In order to avoid the problems caused by missing gaskets, the existing gasket detection in the nut seat is usually manually observed in turn to see if the gaskets are missing.

[0004] However, there are still some problems in manually observing whether the gaskets are missing: when the position of the nut seat is not convenient for personnel to observe, personnel need to move the workpiece or adjust their own position for easy observation, and the gasket is located in the nut seat. If the observation angle is incorrect or the light is insufficient, manual observation is prone to misjudgment, which is time-consuming and labor-intensive. Utility Model Content

[0005] The utility model aims at the problems in the prior art and provides a handheld gasket detection device for a nut seat, which solves the problems in the prior art that the position of the nut seat is inconvenient for personnel to observe and manual observation is prone to misjudgment.

[0006] The technical solution adopted by the utility model is as follows:

[0007] A gasket detection device for a nut seat includes a main body, a power supply is arranged inside the main body, one end of the main body is a detection end, the detection end can be extended into the nut seat and can abut against the gasket, a first contact is arranged on one side of the detection end, the first contact is connected to the positive pole of the power supply, the first contact can contact the inner wall of the nut seat, a second contact connected to the negative pole of the power supply is also arranged on the main body, the second contact is arranged above the first contact and can abut against the upper end surface of the nut seat, and a warning piece is also arranged on the main body, one end of the warning piece is connected to the positive pole or negative pole of the power supply, and the other end of the warning piece is connected to the first contact or the second contact. By setting the first contact and the second contact, when a gasket is set in the nut seat, the first contact contacts the inner wall of the nut seat, and the lower end of the detection end can abut against the gasket when probing downward, thereby preventing the second contact from continuing to descend, and the second contact cannot contact the nut seat, the internal circuit cannot form a loop, and the warning piece is not energized, proving that a gasket is set in the nut seat; when the staff forgets to place the gasket in the nut seat, the detection end continues to move downward, and the second contact moves downward at the same time until it contacts the upper end surface of the nut seat. At this time, the internal circuit forms a loop at the first contact-nut seat-second contact, and the warning piece is energized, which prompts the staff performing the inspection, and the gasket detection in the nut seat can be completed without the staff observing the nut seat, and the inspection can be completed accurately and quickly, thereby improving the accuracy of the gasket detection, and during the inspection, the inspection device that is set does not need to move the workpiece or adjust the staff's own position to complete the observation of the gasket.

[0008] Preferably, the first contact is retractably arranged on the outer wall of the detection end. The retractable first contact can avoid the situation where the first contact and the inner wall of the nut seat are disconnected due to processing deviation of the nut seat or the detection end, thereby improving the detection accuracy of the detection device.

[0009] Preferably, a spring is further provided, one end of the spring is fixedly arranged on the detection end, and the other end of the spring is fixedly connected to the first contact. By providing the spring, the first contact always abuts against the inner wall of the nut seat under the action of the spring when descending in the nut seat, thereby improving the detection accuracy of the detection device.

[0010] Preferably, the other end of the body is an external end, the outer diameter of the external end is larger than the outer diameter of the detection end, and the lower end face of the external end can abut against the upper end face of the nut seat. By setting the external end, when the nut seat without a gasket is detected, the lower end face of the external end abuts against the nut seat, preventing the external end from falling further, preventing the detection device from extending into the nut seat for a long time, and improving the speed of removing the detection device.

[0011] Preferably, the second contact point is arranged on the lower end surface of the external end and protrudes from the lower end surface of the external end. By arranging the second contact point on the lower end surface of the external end, it can be ensured that when the nut seat without a gasket is detected, when the lower end surface of the external end abuts against the nut seat, the second contact point abuts against the nut seat at the same time, thereby improving the accuracy of detection.

[0012] Preferably, the warning member includes a warning light, which is arranged on the external end. By means of the arranged warning light, when the gasket is not installed, the warning light is powered on, and the inspector can judge whether the gasket is installed by observing the warning light.

[0013] Preferably, the warning member further includes a buzzer, which is arranged on the body and electrically connected to the warning light. By energizing the buzzer when the gasket is not installed, the inspector can know whether the gasket is installed in the nut seat without observing the inspection device, thereby improving the convenience of the inspection device.

[0014] Preferably, an indicator is also provided on the body, and the two ends of the indicator are connected to the positive electrode of the power supply and the negative electrode of the power supply respectively. Through the indicator, the indicator is always powered on during operation, prompting the staff that the detection device is in a normal working state, avoiding the detection staff from misjudging whether the gasket is installed when the detection device fails due to low power or other reasons.

[0015] Preferably, the indicator is an indicator light, and the indicator light is arranged on the external end. By setting the indicator as the indicator light, the indicator light is always on in the normal working state.

[0016] Preferably, a switch is further included, the switch is arranged on the body, one end of the switch is connected to the power supply, and the other end of the switch is connected to the first contact or the second contact. By setting the switch, the switch is turned off when the detection device is stored, which saves power of the detection device and increases the service life of the detection device.

[0017] It can be seen from the above technical scheme that the advantages of the utility model are: through the setting of the first contact and the second contact, when a gasket is provided in the nut seat, the first contact contacts the inner wall of the nut seat, and the lower end of the detection end can abut against the gasket when probing downward, thereby preventing the second contact from continuing to descend, and the second contact cannot contact the nut seat, the internal circuit cannot form a loop, and the warning piece is not energized, proving that a gasket is provided in the nut seat; when the staff forgets to place the gasket in the nut seat, the detection end continues to move downward, and the second contact moves downward at the same time until it contacts the upper end surface of the nut seat. At this time, the internal circuit forms a loop at the first contact-nut seat-second contact, and the warning piece is energized, which prompts the staff performing the inspection, and the gasket detection in the nut seat can be completed without the staff observing the nut seat, and the inspection can be completed accurately and quickly, thereby improving the accuracy of the gasket detection, and during the inspection, the detection device set up does not need to move the workpiece or adjust the staff's own position to complete the observation of the gasket. Through the retractable first contact, the situation of the first contact and the inner wall of the nut seat caused by the processing deviation of the nut seat or the detection end can be avoided, thereby improving the detection accuracy of the detection device. Through the spring, the first contact always abuts against the inner wall of the nut seat under the action of the spring when it descends in the nut seat, thereby improving the detection accuracy of the detection device. Through the external end, when the nut seat without the gasket is detected, the lower end face of the external end can abut against the nut seat, avoiding the external end from continuing to descend, preventing the detection device from extending into the nut seat for a long time, and improving the speed of removing the detection device. By setting the second contact on the lower end face of the external end, it can be ensured that when the nut seat without the gasket is detected, the lower end face of the external end abuts against the nut seat, and the second contact abuts against the nut seat at the same time, thereby improving the detection accuracy. Through the warning light, when the gasket is not installed, the warning light is energized, and the detection personnel can judge whether the gasket is installed by observing the warning light. By setting a buzzer, when the gasket is not installed, the buzzer is powered on, and the inspector can know whether the gasket is installed in the nut seat without observing the detection device, which improves the convenience of the detection device. By setting an indicator, the indicator always remains powered on during operation, reminding the staff that the detection device is in normal working condition, avoiding the inspector's misjudgment of whether the gasket is installed when the detection device fails due to low power or other reasons. By setting the indicator as an indicator light, the indicator light is always on in normal working condition. By setting a switch, the switch is turned off when the detection device is stored, which saves power of the detection device and increases the service life of the detection device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solution of the utility model, the drawings required for use in the description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is a structural schematic diagram of the nut seat and the detection device in a specific implementation example of the utility model when working.

[0020] Figure 2 It is a structural schematic diagram of a specific implementation example of the utility model.

[0021] Figure 3 This is a partial structural cross-sectional view of a nut seat and a detection device in a specific embodiment of the utility model when working.

[0022] Figure 4 It is a circuit diagram of a specific implementation example of the utility model.

[0023] Description of main reference numerals

[0024] In the figure: 1. detection end; 2. nut seat; 3. gasket; 4. first contact; 5. second contact; 6. spring; 7. warning light; 8. external end; 9. buzzer; 10. indicator light; 11. switch; 12. power supply. DETAILED DESCRIPTION

[0025] In order to make the purpose, features and advantages of the utility model more obvious and easy to understand, the technical scheme of the utility model will be clearly and completely described below in combination with the drawings in the specific embodiment. Obviously, the embodiments described below are only part of the embodiments of the utility model, not all of them. Based on the embodiments in this patent, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this patent.

[0026] Example:

[0027] like Figure 1-Figure 4As shown in the figure, a gasket detection device for a nut seat includes a main body. Inside the main body, there is a power supply 12. One end of the main body is a detection end 1, and the outer diameter of the detection end 1 is D1. The detection end 1 can extend into the nut seat 2 and can abut against the gasket 3. The inner diameter D2 of the nut seat 2 is equal to the outer diameter D3 of the gasket 3. The diameter of the central hole of the gasket 3 is D5, and the inner diameter of the threaded hole on the workpiece is D4. D5 < D1 < D4 < D2 = D3. On one side of the detection end 1, there is a first contact 4, and the first contact 4 is connected to the positive pole of the power supply 12. The first contact 4 can contact the inner side wall of the nut seat 2. On the main body, there is also a second contact 5 connected to the negative pole of the power supply 12. The second contact 5 is arranged above the first contact 4 and can abut against the upper end face of the nut seat 2. On the main body, there is also a warning device. One end of the warning device is connected to the positive pole or the negative pole of the power supply 12, and the other end of the warning device is connected to the first contact 4 or the second contact 5. In this embodiment, there is also a spring 6. One end of the spring 6 is fixedly arranged on the detection end 1, and the other end of the spring 6 is fixedly connected to the first contact 4. The first contact 4 is telescopically arranged on the outer side wall of the detection end 1. With such a setting, through the first contact 4 and the second contact 5 arranged, when there is a gasket 3 in the nut seat 2, the first contact 4 contacts the inner side wall of the nut seat 2, and the lower end of the detection end 1 can abut against the gasket 3 when descending, thereby preventing the second contact 5 from continuing to descend. The second contact 5 cannot contact the nut seat 2, and the internal circuit cannot form a loop, and the warning device is not powered on, proving that there is a gasket 3 in the nut seat 2. When the staff forgets to place the gasket 3 in the nut seat 2, the detection end 1 continues to move downward, and the second contact 5 also moves downward until it contacts the upper end face of the nut seat 2. At this time, the internal circuit forms a loop at the first contact 4 - nut seat 2 - second contact 5, and the warning device is powered on to give a prompt to the detecting staff. It is possible to complete the detection of the gasket 3 in the nut seat 2 without the need for personnel to observe the nut seat 2, and the detection can be accurately and quickly completed, improving the accuracy of the gasket 3 detection. Moreover, when detecting, through the detection device arranged, it is not necessary to move the workpiece or adjust the position of the personnel themselves to complete the observation of the gasket 3. Through the telescopically arranged first contact 4, it is possible to avoid the situation of disconnection between the first contact 4 and the inner wall of the nut seat 2 caused by the machining deviation of the nut seat 2 or the detection end 1, improving the accuracy of the detection device. Through the spring 6 arranged, when the first contact 4 descends in the nut seat 2, it always abuts against the inner wall of the nut seat 2 under the action of the spring 6, improving the accuracy of the detection device.

[0028] In the present embodiment, the other end of the main body is an external end 8, and the outer diameter of the external end 8 is larger than the outer diameter of the detection end 1. The lower end face of the external end 8 can abut against the upper end face of the nut seat 2. In the present embodiment, the second contact 5 is arranged on the lower end face of the external end 8 and protrudes from the lower end face of the external end 8. With such an arrangement, through the arrangement of the external end 8, when the nut seat 2 without the gasket 3 is detected, the lower end face of the external end 8 can abut against the nut seat 2, thereby preventing the external end 8 from continuing to descend and preventing the detection device from extending into the nut seat 2 for a long period of time, thereby improving the speed of removing the detection device. By arranging the second contact 5 on the lower end face of the external end 8, it can be ensured that when the nut seat 2 without the gasket 3 is detected, the second contact 5 abuts against the nut seat 2 at the same time when the lower end face of the external end 8 abuts against the nut seat 2, thereby improving the accuracy of the detection.

[0029] In this embodiment, the warning part includes a warning light 7 and a buzzer 9. The warning light 7 is arranged on the external end 8, and the buzzer 9 is arranged on the main body. The buzzer 9 is electrically connected to the warning light 7. With such arrangement, when the gasket 3 is not installed, the warning light 7 is energized, and the inspector can judge whether the gasket 3 is installed by observing the warning light 7. When the gasket 3 is not installed, the buzzer 9 is energized, and the inspector can know whether the gasket 3 is installed in the nut seat 2 without observing the detection device, thereby improving the convenience of the detection device.

[0030] The main body is also provided with an indicator, which is an indicator light 10 in this embodiment. The two ends of the indicator light 10 are respectively connected to the positive electrode of the power supply 12 and the negative electrode of the power supply 12. In this way, the indicator is always powered on during operation, prompting the staff that the detection device is in a normal working state, so as to avoid the detection staff from misjudging whether the gasket 3 is installed when the detection device fails, such as when the power supply 12 is low. By setting the indicator as the indicator light 10, the indicator light 10 is always on when in a normal working state.

[0031] In this embodiment, a switch 11 is also included. The switch 11 is arranged on the main body. One end of the switch 11 is connected to the power supply 12, and the other end of the switch 11 is connected to the first contact 4 or the second contact 5. In this way, the switch 11 is set and the switch 11 is turned off when the detection device is stored, which saves power of the detection device and increases the service life of the detection device.

[0032] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A gasket detection device for a nut seat, comprising a body, characterized in that: A power source (12) is arranged inside the body, one end of the body is a detection end (1), the detection end (1) can be extended into the nut seat (2) and can abut against the gasket (3), a first contact (4) is arranged on one side of the detection end (1), the first contact (4) is connected to the positive pole of the power source (12), the first contact (4) can contact the inner wall of the nut seat (2), a second contact (5) connected to the negative pole of the power source (12) is also arranged on the body, the second contact (5) is arranged above the first contact (4) and can abut against the upper end surface of the nut seat (2), and a warning piece is also arranged on the body, one end of the warning piece is connected to the positive pole or the negative pole of the power source (12), and the other end of the warning piece is connected to the first contact (4) or the second contact (5).

2. The nut seat gasket detection device according to claim 1, characterized in that: The first contact point (4) is telescopically arranged on the outer side wall of the detection end (1).

3. The nut seat gasket detection device according to claim 2, characterized in that: A spring (6) is also provided, one end of the spring (6) is fixedly arranged on the detection end (1), and the other end of the spring (6) is fixedly connected to the first contact point (4).

4. The nut seat gasket detection device according to claim 1, characterized in that: The other end of the body is an external end (8), the external end (8) has an outer diameter greater than the outer diameter of the detection end (1), and the lower end surface of the external end (8) can abut against the upper end surface of the nut seat (2).

5. The nut seat gasket detection device according to claim 4, characterized in that: The second contact (5) is arranged on the lower end surface of the external end (8) and protrudes from the lower end surface of the external end (8).

6. The nut seat gasket detection device according to claim 5, characterized in that: The warning member comprises a warning light (7), and the warning light (7) is arranged on the external end (8).

7. The nut seat gasket detection device according to claim 6, characterized in that: The warning member also includes a buzzer (9), which is arranged on the body and is electrically connected to the warning light (7).

8. The nut seat gasket detection device according to claim 7, characterized in that: The main body is also provided with an indicator, and two ends of the indicator are respectively connected to the positive pole of the power source (12) and the negative pole of the power source (12).

9. The nut seat gasket detection device according to claim 8, characterized in that: The indicating member is an indicator light (10), and the indicator light (10) is arranged on the external end (8).

10. The nut seat gasket detection device according to claim 1, characterized in that: The device also includes a switch (11), which is arranged on the body, one end of the switch (11) is connected to a power source (12), and the other end of the switch (11) is connected to a first contact (4) or a second contact (5).

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