Vacuum attenuation method leak detector

Abstract

The utility model relates to the technical field of vacuum leak detection, and particularly discloses a vacuum attenuation method leak detector, which comprises a shell, a console arranged on one side of the shell, a plurality of vacuum chambers arranged in the shell, a clamping mechanism arranged on the upper parts of the vacuum chambers, a valve mechanism arranged on the lower parts of the vacuum chambers, and a top cover connected to the vacuum chambers, the upper side of the top cover is fixedly connected with a handle, the middle of the top cover is fixedly sleeved with a sealing ring, the lower portion of the top cover is provided with threads, the lower end of the top cover is provided with grooves in a circumferential array, the grooves in the top cover are slidably connected with clamping plates, the upper ends of the clamping plates are fixedly connected with tension springs, and the other ends of the tension springs are fixed in the grooves in the top cover. The vacuum attenuation leak detector can detect a plurality of packages at the same time through the arrangement of the plurality of vacuum chambers and the arrangement of the valve mechanism, the packages are clamped through the arrangement of the clamping mechanism, and the detection accuracy is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to vacuum leak detection technical field, in particular to a kind of vacuum decay method leak detector. BACKGROUND

[0002] Vacuum leak detector is a kind of technology to determine whether vacuum system, container or device leaks, determine the position and leak rate of leak hole by appropriate method, and the corresponding instrument is called leak detector, and in the manufacturing process of vacuum system, container or device, the vacuum leak detection technology is used to determine the vacuum air tightness of them and probe the position of leak hole, so that the leak hole is closed to maintain the vacuum state of system, container or device, which can be used to detect food packaging, empty syringe, pre-filled syringe, liquid penicillin bottle, freeze-dried powder penicillin bottle and other liquid filling packaging, etc.

[0003] For example, the patent document with the announcement number CN217032927U discloses a vacuum decay method leak detector, which includes a shell, a first supporting rod and a support. The inner wall of the shell is provided with a vacuum chamber, the inner wall of the vacuum chamber is installed with the first supporting rod, the inner wall of the shell is installed with the support, the top of the first supporting rod is installed with a motor, the output end of the motor is installed with a threaded rod, the outer wall of the threaded rod is installed with a first sleeve, and the measured object is fixed to increase the measurement accuracy by installing the motor, the sensor and the support plate. The guiding rod facilitates the movement of the second supporting rod. The threaded rod rotates to drive the first sleeve to move, drive the second supporting rod to move, drive the first spring to move, drive the support plate to move, drive the sensor to move, and the sensor stops rotating when reaching the set pressure value, so that the measured object is pressed tightly, the function of fixing the measured object to increase the measurement accuracy is realized, and the vacuum decay method leak detector can only detect one packaging object at a time in the prior art, the detection efficiency is not high, and it is not suitable for large-scale detection. UTILITY MODEL CONTENTS

[0004] The utility model aims at solving the above-mentioned problem and provides a vacuum decay method leak detector.

[0005] The utility model realizes the above-mentioned purpose through the following technical scheme:

[0006] A vacuum decay method leak detector, comprising a shell, a control console is arranged on one side of the shell, a plurality of vacuum chambers are arranged in the shell, a clamping mechanism is arranged on the upper part of the vacuum chamber, a valve mechanism is arranged on the lower part of the vacuum chamber, the clamping mechanism comprises a top cover connected to the vacuum chamber, a handle is fixedly connected to the upper side of the top cover, a sealing ring is fixedly sleeved in the middle part of the top cover, a screw thread is arranged on the lower part of the top cover, a plurality of grooves are arranged in a circular array on the lower end of the top cover, a clamping plate is slidably connected to the grooves on the top cover, a tension spring is fixedly connected to the upper end of the clamping plate, and the other end of the tension spring is fixedly arranged in the groove on the top cover.

[0007] Further arrangement: the shell comprises a shell body, the upper part of the shell body is provided with a cover plate, and the lower part of the shell body is provided with a breathable port.

[0008] Further arrangement: the vacuum chamber comprises a vacuum cavity fixed in the shell body, the upper part of the vacuum cavity is provided with a port, the inner side of the port is provided with a thread, the port is threadedly connected with the top cover, the inside of the vacuum cavity is provided with a sensor, the lower end of the vacuum cavity is provided with a through hole, and the lower part of the vacuum cavity is fixedly connected with a connecting pipe, and the lower end of the connecting pipe is fixedly connected with a vacuum pump.

[0009] Further arrangement: the valve mechanism comprises a sliding plate slidingly connected in the vacuum cavity, the lower end of the sliding plate is circularly arranged with a first rack, the first rack is meshed with a gear on one side, the gear is meshed with a second rack on the other side, the second rack is provided with a ball valve head on the other side, the ball valve head is matched with the through hole in the lower end of the vacuum cavity, and the lower end of the first rack is provided with a spring.

[0010] Further arrangement: the control console comprises a control console base located on one side of the shell body, a display screen is arranged on the control console base, and a plurality of buttons are arranged on the other side of the display screen.

[0011] Further arrangement: the clamping plate is provided with a non-slip pad on one side.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0013] Through the arrangement of a plurality of vacuum chambers and the arrangement of the valve mechanism, the vacuum decay method leak detector can detect a plurality of packaging objects at the same time, and through the arrangement of the clamping mechanism, the packaging object is clamped, and the detection accuracy is increased. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained by those skilled in the art without creative labor.

[0015] Figure 1 is the isometric view of the vacuum decay method leak detector of the utility model;

[0016] Figure 2 is the vacuum chamber structure schematic view of the vacuum decay method leak detector of the utility model;

[0017] Figure 3 is the partial structure schematic view of the vacuum decay method leak detector of the utility model;

[0018] Figure 4 is the valve mechanism structure schematic view of the vacuum decay method leak detector of the utility model.

[0019] Figure 5 is a kind of vacuum attenuation method leak detector clamping mechanism of the utility model sectional view;

[0020] Figure 6 is a kind of vacuum attenuation method leak detector clamping mechanism of the utility model structure diagram.

[0021] Reference signs are explained as follows:

[0022] 101, housing;102, air vent;103, cover plate;201, console base;202, button;203, display screen;301, handle;302, top cover;303, sealing ring;304, clamping plate;305, tension spring;401, vacuum cavity;402, connecting pipe;403, vacuum pump;404, sensor;405, port;501, sliding plate;502, first rack;503, gear;504, second rack;505, ball valve head;506, spring. DETAILED DESCRIPTION

[0023] In the description of the utility model, it needs to be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the utility model. In addition, the terms "first", "second" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" and the like can explicitly or implicitly include one or more features. In the description of the utility model, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0024] In the description of the utility model, it needs to be explained that, unless otherwise specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected;It can be mechanical connection, or electrical connection;It can be directly connected, or indirectly connected through intermediate medium, or the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood through specific circumstances.

[0025] The utility model will be further described below in conjunction with the drawings:

[0026] AsFigures 1-6 As shown, the shell side is provided with a console, the shell is provided with a plurality of vacuum chambers, the upper part of the vacuum chamber is provided with a clamping mechanism, and the lower part of the vacuum chamber is provided with a valve mechanism.

[0027] In this embodiment: the clamping mechanism includes a top cover 302 connected to the vacuum chamber, the upper side of the top cover 302 is fixedly connected with a handle 301, the middle part of the top cover 302 is fixedly sleeved with a sealing ring 303, the lower part of the top cover 302 is provided with a thread, the lower end of the top cover 302 is provided with a circumferential array of grooves, the grooves on the top cover 302 are slidingly connected with a clamping plate 304, the upper end of the clamping plate 304 is fixedly connected with a tension spring 305, the other end of the tension spring 305 is fixed inside the groove on the top cover 302, the clamping plate 304 is provided with a non-slip pad on one side, the staff pulls open the clamping plate 304, the tension spring 305 is tightened, the packaging is sent into the middle of the clamping plate 304, the clamping mechanism is sent into the vacuum cavity 401 from the port 405, the handle 301 is rotated to drive the top cover 302 to rotate, so that the top cover 302 is tightly connected with the port 405 through the thread, and the sealing ring 303 is arranged to seal between the top cover 302 and the port 405, preventing gas from leaking out.

[0028] In this embodiment: the shell includes a shell body 101, the upper part of the shell body 101 is provided with a cover plate 103, the lower part of the shell body 101 is provided with an air inlet 102, the inside of the shell body 101 is provided with a vacuum chamber, the cover plate 103 is used to protect and shield the internal mechanism, and the air inlet 102 below is arranged to facilitate air flow into the inside of the leak detector.

[0029] In this embodiment: the vacuum chamber includes a vacuum cavity 401 fixed inside the shell body 101, the upper part of the vacuum cavity 401 is provided with a port 405, the inside of the port 405 is provided with a thread, the port 405 is threadedly connected with the top cover 302, the inside of the vacuum cavity 401 is provided with a sensor 404, the lower end of the vacuum cavity 401 is provided with a through hole, the lower part of the vacuum cavity 401 is fixedly connected with a connecting pipe 402, the lower end of the connecting pipe 402 is fixedly connected with a vacuum pump 403, the vacuum pump 403 is started, the air in the vacuum cavity 401 is extracted through the connecting pipe 402, and the sensor 404 is arranged to detect the pressure change in the inside of the vacuum cavity 401, convert it into an electric signal, and transmit it to the console.

[0030] In the embodiment, the valve mechanism comprises a sliding plate 501 slidably connected inside the vacuum cavity 401, the lower end of the sliding plate 501 is provided with a first rack 502 in a circular array, the first rack 502 is meshed with a gear 503 on one side, the gear 503 is meshed with a second rack 504 on the other side, the second rack 504 is provided with a ball valve head 505 on the other side, the lower end of the ball valve head 505 is matched with a through hole at the lower end of the vacuum cavity 401, the lower end of the first rack 502 is provided with a spring 506, the sliding plate 501 is moved downward under the compression of the clamping mechanism, the downward movement of the sliding plate 501 drives the first rack 502 to move downward, so that the spring 506 is compressed, the downward movement of the first rack 502 drives the gear 503 to rotate, the rotation of the gear 503 drives the second rack 504 to move upward, the upward movement of the second rack 504 drives the ball valve head 505 to move upward, so that the ball valve head 505 is separated from the through hole at the lower end of the vacuum cavity 401, the clamping mechanism is separated from the vacuum cavity 401, the spring 506 is reset, and other components are reset, so that the vacuum chamber is resealed.

[0031] In the embodiment, the control console comprises a control console base 201 located on one side of the shell 101, a display screen 203 is arranged on the control console base 201, and a plurality of buttons 202 are arranged on the other side of the display screen 203; the control console base 201 is used for supporting and accommodating the control device; the display screen 203 is used for displaying the pressure data in each vacuum chamber; and the buttons 202 are used for controlling the movement of each part in the vacuum decay leak detector.

[0032] The working principle and use process of the utility model are as follows: the staff pulls open the clamping plate 304, the tension spring 305 is tightened, the packaging object is sent into the middle of the plurality of clamping plates 304, the clamping mechanism is sent into the vacuum cavity 401 from the port 405, the handle 301 is rotated, the top cover 302 is driven to rotate, the top cover 302 and the port 405 are fastened together through threaded connection, the sealing between the top cover 302 and the port 405 is realized through the arrangement of the sealing ring 303, the sliding plate 501 is moved downward under the compression of the clamping mechanism, the downward movement of the sliding plate 501 drives the first rack 502 to move downward, so that the spring 506 is compressed, the downward movement of the first rack 502 drives the gear 503 to rotate, the rotation of the gear 503 drives the second rack 504 to move upward, the upward movement of the second rack 504 drives the ball valve head 505 to move upward, so that the ball valve head 505 is separated from the through hole at the lower end of the vacuum cavity 401, the staff presses the button 202 on the control console to start the vacuum pump 403, after the vacuum pump 403 is started, the air in the vacuum cavity 401 is separated through the connecting pipe 402, the arrangement of the sensor 404 can detect the pressure change in the vacuum cavity 401 and transmit the electric signal to the control console, and finally the display screen 203 is used for observing the pressure in the vacuum chamber and detecting whether the packaging object has a leakage phenomenon.

[0033] The basic principle, main features and advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application.

Claims

1. A vacuum decay method leak detector comprising a housing, characterised in that: The shell is provided with a console on one side, a plurality of vacuum chambers are arranged in the shell, a clamping mechanism is arranged on the upper part of the vacuum chamber, a valve mechanism is arranged on the lower part of the vacuum chamber, the clamping mechanism comprises a top cover (302) connected to the vacuum chamber, a handle (301) is fixedly connected to the upper side of the top cover (302), a sealing ring (303) is fixedly sleeved in the middle part of the top cover (302), threads are arranged on the lower part of the top cover (302), recesses are arranged in a circumferential array on the lower end of the top cover (302), a clamping plate (304) is slidably connected to the recesses on the top cover (302), a tension spring (305) is fixedly connected to the upper end of the clamping plate (304), and the other end of the tension spring (305) is fixed in the recess on the top cover (302).

2. A vacuum decay method leak detector according to claim 1, wherein: The shell comprises a shell body (101), a cover plate (103) is arranged on the upper part of the shell body (101), and a breathable port (102) is arranged on the lower part of the shell body (101).

3. A vacuum decay method leak detector according to claim 2, wherein: The vacuum chamber comprises a vacuum cavity (401) fixedly arranged in the shell body (101), a port (405) is arranged on the upper part of the vacuum cavity (401), threads are arranged on the inner side of the port (405), the port (405) is threadedly connected with the top cover (302), a sensor (404) is arranged in the vacuum cavity (401), a through hole is arranged on the lower end of the vacuum cavity (401), a connecting pipe (402) is fixedly connected to the lower part of the vacuum cavity (401), and a vacuum pump (403) is fixedly connected to the lower end of the connecting pipe (402).

4. A vacuum decay method leak detector according to claim 3, wherein: The valve mechanism comprises a sliding plate (501) slidably connected in the vacuum cavity (401), a first rack (502) is arranged in a circumferential array on the lower end of the sliding plate (501), a gear (503) is engaged on one side of the first rack (502), a second rack (504) is engaged on the other side of the gear (503), a ball valve head (505) is arranged on the other side of the second rack (504), the lower end of the ball valve head (505) is matched with the through hole on the lower end of the vacuum cavity (401), and a spring (506) is arranged on the lower end of the first rack (502).

5. A vacuum decay method leak detector according to claim 2, wherein: The console comprises a console base (201) located on one side of the shell body (101), a display screen (203) is arranged on the console base (201), and a plurality of buttons (202) are arranged on the other side of the display screen (203).

6. A vacuum decay method leak detector according to claim 1, wherein: A non-slip pad is arranged on one side of the clamping plate (304).

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