Device capable of quickly popping up sample from low-temperature box

Abstract

The utility model discloses a device capable of quickly popping up a sample from a low-temperature box, which comprises a sample outlet which is arranged on the side surface of the low-temperature box and can be selectively opened or closed; the power mechanism is arranged in the low-temperature box; the conveying belt is arranged in the low-temperature box, and the conveying belt is connected with a power mechanism; and the plurality of ejection devices are arranged on the conveying belt at intervals, and the plurality of ejection devices are selectively arranged corresponding to the sample outlets and are used for selectively placing or ejecting test pieces. The device has the characteristics of avoiding manual sampling, reducing the test time, being convenient to operate, improving the test accuracy, and improving the working efficiency and the protective property.

Description

Technical Field

[0001] The utility model relates to the technical field of low temperature boxes, and more specifically, to a device capable of quickly ejecting a sample from a low temperature box. Background Art

[0002] A cryogenic chamber is a test chamber that keeps the working space temperature lower than room temperature and can be controlled at a specific temperature. It is an important part of the low-temperature impact test. However, the cryogenic chambers currently used in the low-temperature impact test are mainly cooled by gas. After the test piece is placed in the cryogenic chamber for cooling, it is usually necessary to open the test chamber door and the test personnel use their upper limbs to reach into the cryogenic chamber to take the test piece. During the long working process, the hands and upper limbs are in contact with the cold air multiple times in the cryogenic chamber, which can easily cause damage to the human body. The protection is insufficient and the low-temperature impact requirements (test completed within 5 seconds) cannot be guaranteed. Utility Model Content

[0003] The utility model designs and develops a device that can quickly eject a sample from a low-temperature box. The test piece is automatically ejected through a conveyor belt combined with the ejection device. The operation is convenient, the test accuracy is improved, the work efficiency and protection are improved, and people are prevented from being frostbitten by low temperatures.

[0004] The technical solution provided by the utility model is:

[0005] A device for quickly ejecting a sample from a low-temperature box, comprising:

[0006] A sample outlet is provided on the side of the low temperature box, and the sample outlet can be selectively opened or closed;

[0007] A power mechanism, which is arranged in the low temperature box;

[0008] A conveyor belt is arranged in the low temperature box and connected to a power mechanism;

[0009] A plurality of ejection devices are arranged at equal intervals on the conveyor belt, and the plurality of ejection devices can be selectively arranged corresponding to the sample outlet for selectively placing or ejecting the test piece.

[0010] Preferably, the low temperature box comprises:

[0011] The housing; and

[0012] A cover plate, which is hinged to the box body and is used to selectively open or seal the box body;

[0013] A handle is arranged on the cover plate.

[0014] Preferably, it also includes:

[0015] One end of the cold air delivery pipe is connected to the inside of the box, and the other end is connected to the refrigerator.

[0016] Preferably, it also includes:

[0017] A buffer belt is detachably arranged at the sample outlet, and a resettable structure is arranged in the middle of the buffer belt, so that the two sides of the buffer belt can be selectively closed or opened to each other;

[0018] Wherein, the test piece can be clamped in the middle of the buffer zone.

[0019] Preferably, the buffer zone is made of SEBS.

[0020] Preferably, the power mechanism comprises:

[0021] A motor, which is fixed in the box;

[0022] A plurality of support frames are arranged at four corners on the conveyor belt;

[0023] Two rotating shafts are rotatably disposed between the plurality of supporting frames opposite to each other, and the two rotating shafts are disposed in parallel;

[0024] A main gear and a secondary gear, which are respectively fixed to one end of the two rotating shafts;

[0025] Wherein, the main gear is connected to the output end of the motor, and the conveyor belt is tensioned on the outside of the two rotating shafts.

[0026] Preferably, it also includes:

[0027] A fixing plate fixed in the low temperature box;

[0028] Wherein, the main gear, the first sub-gear, the two second sub-gears, the conveyor belt and the plurality of ejection devices are all arranged on a fixed plate.

[0029] Preferably, the plurality of ejection devices each include:

[0030] a housing fixed on the conveyor belt;

[0031] a spring, one end of which is fixed to one end of the housing;

[0032] A partition plate is fixed to the other end of the spring and is movably disposed in the housing;

[0033] Two clamping plates are symmetrically hinged at the other end of the housing, and the two clamping plates can be selectively opened or closed;

[0034] Two card board switches are respectively arranged on two sides of the shell, and the two card board switches are respectively connected to the two card boards.

[0035] Preferably, it also includes:

[0036] The heat-insulating layer is arranged inside the inner wall of the box.

[0037] Preferably, it also includes:

[0038] A temperature sensor is disposed in the low temperature box;

[0039] A temperature display screen is arranged on the cover plate and connected to the temperature sensor to display the temperature in the low temperature box;

[0040] A first button switch device, which is arranged on the outside of the low temperature box, and the first button switch device is connected to the motor and is used to turn the motor on or off;

[0041] The second button switch device is arranged on the outside of the low temperature box, and the second button switch device is connected to the card plate switches of multiple ejection devices, and is used to open or close the two card plates of the multiple ejection devices.

[0042] Beneficial effects of the utility model:

[0043] The utility model provides a device that can quickly eject a sample from a low-temperature box, avoids manual sampling, reduces test time, meets low-temperature impact requirements, is easy to operate, improves test accuracy, improves work efficiency and protection, avoids frostbite by humans, and meets standard test time requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] Figure 1 This is a schematic diagram of the structure of one side of the device for quickly ejecting a sample from a low-temperature box according to the utility model.

[0045] Figure 2 This is a schematic diagram of the structure of the other side of the device for quickly ejecting a sample from a low-temperature box according to the utility model.

[0046] Figure 3 This is a schematic diagram of the internal structure of the device for quickly ejecting a sample from a low-temperature box according to the utility model.

[0047] Figure 4 It is a structural schematic diagram of one side of the power mechanism of the utility model.

[0048] Figure 5 It is a structural schematic diagram of the other side of the power mechanism of the utility model.

[0049] Figure 6 It is a schematic structural diagram of the power mechanism, conveyor belt and multiple ejection devices of the utility model.

[0050] Figure 7 It is a schematic structural diagram of the power mechanism, conveyor belt and multiple ejection devices of the utility model.

[0051] Figure 8 It is a schematic structural diagram of the power mechanism, conveyor belt and multiple ejection devices of the utility model. DETAILED DESCRIPTION

[0052] The present invention will be further described in detail below in conjunction with the accompanying drawings so that those skilled in the art can implement the invention with reference to the description.

[0053] The utility model provides a device for quickly ejecting a sample from a low temperature box, which is arranged in a low temperature box 100. Figure 1 , Figure 2 As shown, the low temperature box 100 includes a box body 101, a cover plate 102, a handle 103, a cold air delivery pipe 104 and a sample outlet 120. The box body 101 is a structure with an upper opening; the cover plate 102 and the box body 101 are hinged to each other for selectively opening or sealing the box body 101; the handle 103 is arranged on the cover plate 102 to facilitate the opening of the cover plate 102; one end of the cold air delivery pipe 104 is connected to the inside of the box body 102, and the other end is connected to the refrigerator for delivering cold air into the box body 101; the sample outlet 120 is arranged on the side of the box body 101, and the sample outlet 120 can be selectively opened or closed for ejecting samples.

[0054] like Figure 3 , Figure 4 , Figure 5 As shown, the device for quickly ejecting the sample from the low-temperature box includes: a power mechanism 130, a conveyor belt 140, a plurality of ejection devices 150 and a fixed plate 161, wherein the fixed plate 161 is fixed in the box body 101 by a fixed rod 162, and the power mechanism 130 is arranged in the box body 101 for providing power and power transmission; the conveyor belt 140 is connected to the power mechanism 130 so that the conveyor belt 140 can rotate repeatedly; a plurality of ejection devices 150 are arranged at intervals on the conveyor belt 140, and the plurality of ejection devices 150 can be selectively arranged corresponding to the sample outlet 120 for selectively placing or ejecting the sample.

[0055] like Figure 6As shown, the power mechanism includes: a motor (not shown in the figure), four support frames 132, a main gear 133, a sub-gear 134 and two rotating shafts 135, and the motor is fixed on the fixed plate 161; the four support frames 132 are fixed on the conveyor belt 140 at four corners, and the two ends of the two rotating shafts 135 are rotatably arranged in the four support frames 132, so that the two rotating shafts 135 are rotatably arranged in parallel; the main gear 133 and the sub-gear 134 are respectively fixed at one end of the two rotating shafts 135, and the main gear 133 and the sub-gear 134 are driven by a chain to achieve synchronous rotation; the main gear 131 is connected to the output end of the motor, and then the main gear 131 is driven to rotate by the motor; the two ends of the conveyor belt 140 are respectively tightened on the outside of the two rotating shafts 135.

[0056] like Figure 7 , Figure 8 As shown, the multiple ejection devices 150 each include: a shell 151, two card plates 152, two card plate switches 153, a spring 154 and a partition 155. The shell 151 is fixed on the conveyor belt 140; one end of the spring 154 is fixed to one end in the shell 151; the partition 155 is fixed to the other end of the spring 154, and the partition 155 is movably arranged in the shell 151; the two card plates 152 are symmetrically hinged at the other end of the shell 151, The two card plates 152 can be selectively opened or closed; two card plate switches 153 are respectively arranged on both sides of the shell 151, and the two card plate switches 153 are respectively connected to the two card plates 152, and are used to drive the two card plates 152 to open in reverse directions respectively; the other end of the shell 151 near the two card plates 152 is an open structure, which is convenient for placing the test strip 200 in the shell 151, and then limiting the test strip 200 through the elastic force of the spring and the card plate 152.

[0057] In this embodiment, the two card boards 152 and the two card board switches 153 are connected via a chain.

[0058] The sample outlet 120 is detachably provided with a buffer belt (not shown in the figure), and a resettable structure is provided in the middle of the buffer belt so that the two sides of the buffer belt can be selectively closed or opened to each other. When the ejection device 150 ejects the specimen strip 200, the specimen strip 200 can be stuck in the middle of the buffer belt, which is convenient for the operator to quickly take it.

[0059] In this embodiment, the buffer belt is made of elastic material. Furthermore, the material of the buffer belt is SEBS.

[0060] A temperature sensor (not shown in the figure) is also provided in the box body 101 for collecting the temperature in the box body 101 in real time; a temperature display screen 110 is provided on the cover plate 102, and the temperature display screen 110 is connected to the temperature sensor for displaying the temperature in the box body 101; a first button switch device 131 is provided on the outside of the box body 101 and is connected to the motor for turning the motor on or off; a second button switch device 151 is provided on the outside of the box body 101, and the second button switch device 151 is connected to the card plate switches of multiple ejection devices 150, so that multiple ejection devices 150 can open or close two card plates 152 in turn.

[0061] In this embodiment, a heat-insulating layer 105 is provided on the inner wall of the box body 101 , and the heat-insulating layer 105 is disconnected at the position of the fixing rod 162 .

[0062] In this embodiment, the number of the ejection devices 150 is ten.

[0063] The working process of the device for quickly ejecting a sample from a low temperature box described in the utility model is as follows:

[0064] When in use, multiple test pieces are respectively engaged in multiple ejection devices one by one, the box is sealed with a cover plate, and cold air is transported to the low-temperature box through the cold air delivery pipe. The internal refrigeration forms a low-temperature environment. When the temperature in the low-temperature box displayed on the temperature display reaches the test temperature (-40℃±2℃), the first button switch device is pressed, the motor starts, and the conveyor belt is driven to rotate. The second button switch device is pressed to start the ejection devices in sequence, and the test piece strip is ejected from the sample outlet. The test piece strip is stuck in the middle of the buffer belt. The test piece is picked up manually and placed in the impact testing machine to quickly complete the test. After the first ejection device ejects, the motor will move with the conveyor belt. The second button switch device is pressed again, and the second ejection device is started, and the ejection is completed in sequence.

[0065] The moving distance of the conveyor belt is adjusted by a motor, and when multiple ejection devices are ejected, the two card switches of the ejection devices are managed in sequence by a second button switch device, thereby ejecting the sample strips in sequence.

[0066] The utility model provides a device that can quickly eject a sample from a low-temperature box, avoids manual sampling, reduces test time, meets low-temperature impact requirements, is easy to operate, improves test accuracy, improves work efficiency and protection, avoids frostbite by humans, and meets standard test time requirements.

[0067] Although the implementation scheme of the utility model has been disclosed as above, it is not limited to the applications listed in the specification and implementation modes. It can be fully applied to various fields suitable for the utility model. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the utility model is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A device for quickly ejecting a sample from a cryogenic box, characterized in that: include: A sample outlet is provided on the side of the low temperature box, and the sample outlet can be selectively opened or closed; A power mechanism, which is arranged in the low temperature box; A conveyor belt is arranged in the low temperature box and connected to a power mechanism; A plurality of ejection devices are arranged at equal intervals on the conveyor belt, and the plurality of ejection devices can be selectively arranged corresponding to the sample outlet for selectively placing or ejecting the test piece.

2. The device for rapidly ejecting a sample from a cryogenic box according to claim 1, characterized in that: The low temperature box comprises: The housing; and A cover plate, which is hinged to the box body and is used to selectively open or seal the box body; A handle is arranged on the cover plate.

3. The device for rapidly ejecting a sample from a cryogenic box according to claim 2, characterized in that: Also includes: One end of the cold air delivery pipe is connected to the inside of the box, and the other end is connected to the refrigerator.

4. The device for rapidly ejecting a sample from a low temperature box according to claim 3, characterized in that: Also includes: A buffer belt is detachably arranged at the sample outlet, and a resettable structure is arranged in the middle of the buffer belt, so that the two sides of the buffer belt can be selectively closed or opened to each other; Wherein, the test piece can be clamped in the middle of the buffer zone.

5. The device for rapidly ejecting a sample from a low temperature box according to claim 4, characterized in that: The material of the buffer zone is SEBS.

6. The device for rapidly ejecting a sample from a low temperature box according to claim 5, characterized in that: The power mechanism comprises: A motor, which is fixed in the box; A plurality of support frames are arranged at four corners on the conveyor belt; Two rotating shafts are rotatably disposed between the plurality of supporting frames opposite to each other, and the two rotating shafts are disposed in parallel; A main gear and a secondary gear, which are respectively fixed to one end of the two rotating shafts; Wherein, the main gear is connected to the output end of the motor, and the conveyor belt is tensioned on the outside of the two rotating shafts.

7. The device for rapidly ejecting a sample from a low temperature box according to claim 6, characterized in that: Also includes: A fixing plate fixed in the low temperature box; Wherein, the main gear, the first sub-gear, the two second sub-gears, the conveyor belt and the plurality of ejection devices are all arranged on a fixed plate.

8. The device for rapidly ejecting a sample from a low temperature box according to claim 7, characterized in that: The plurality of ejection devices each include: a housing fixed on the conveyor belt; a spring, one end of which is fixed to one end of the housing; A partition plate is fixed to the other end of the spring and is movably disposed in the housing; Two clamping plates are symmetrically hinged at the other end of the housing, and the two clamping plates can be selectively opened or closed; Two card board switches are respectively arranged on two sides of the shell, and the two card board switches are respectively connected to the two card boards.

9. The device for rapidly ejecting a sample from a low temperature box according to claim 8, characterized in that: Also includes: The heat-insulating layer is arranged inside the inner wall of the box.

10. The device for rapidly ejecting a sample from a low temperature box according to claim 9, characterized in that: Also includes: A temperature sensor is disposed in the low temperature box; A temperature display screen is arranged on the cover plate and connected to the temperature sensor to display the temperature in the low temperature box; A first button switch device, which is arranged on the outside of the low temperature box, and the first button switch device is connected to the motor and is used to turn the motor on or off; The second button switch device is arranged on the outside of the low temperature box, and the second button switch device is connected to the card plate switches of multiple ejection devices, and is used to open or close the two card plates of the multiple ejection devices.

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