High and low temperature test box
By designing a high and low temperature test chamber including heating, cooling and exhaust fans, the problem that the existing technology cannot perform tensile tests and high and low temperature tests simultaneously is solved, and the function of high and low temperature tests is realized on the tensile machine, satisfying the product's Test requirements in high and low temperature environments.
Patent Information
- Application Number
- CN202420647207.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-29
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2034-03-29
AI Technical Summary
The existing high and low temperature test chambers cannot perform tensile tests and high and low temperature tests at the same time, and cannot meet the needs of products for tensile tests under high and low temperature environments.
A high and low temperature test chamber is designed, including an inner box, a heating mechanism, a refrigeration mechanism, an exhaust fan, an exhaust fan and a partition, allowing the test piece to pass through the through hole, the clamping mechanism for tensile testing, and pass through the heating pipe and Liquid nitrogen tubes achieve high and low temperature environments.
When tensile tests are carried out on the tensile machine, the test pieces are subjected to high and low temperature tests in the insulating box at the same time, meeting the needs of the product to conduct tensile tests and high and low temperature tests at the same time, and to conduct tensile tests under high and low temperature environments.
Smart Images
Figure CN222189016U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of test boxes, in particular to a high and low temperature test box. Background Art
[0002] High and low temperature test chamber refers to a test chamber that simulates the temperature change law in the natural environment. It is an essential test equipment in the fields of aviation, automobiles, home appliances, scientific research, etc. It is used to test and determine the adaptability of electrical, electronic and other products and materials during transportation and use in high and low temperature comprehensive environments. It is used in product design, improvement, identification and inspection.
[0003] Some products need to be tensile tested by a tensile testing machine, and also need to be high and low temperature tested by a high and low temperature testing chamber. The current situation is that the tensile test and high and low temperature test are carried out separately. In addition, some products need to be tensile tested in high and low temperature environments. The existing high and low temperature testing chambers (such as a high and low temperature testing chamber disclosed in application number 202322033462.0) cannot meet the needs of products undergoing tensile tests and high and low temperature tests at the same time, nor can they meet the needs of products undergoing tensile tests in high and low temperature environments. Therefore, there is an urgent need for a high and low temperature testing chamber specially designed for a tensile testing machine, so that when the product is undergoing a tensile test on a tensile testing machine, it is also in an insulation chamber for high and low temperature tests. Utility Model Content
[0004] The purpose of the utility model is to overcome the above-mentioned technical deficiencies and propose a high and low temperature test chamber to solve the technical problem that the high and low temperature test chamber in the prior art cannot meet the needs of simultaneously performing tensile tests and high and low temperature tests on products, and cannot meet the needs of performing tensile tests on products in high and low temperature environments.
[0005] In order to achieve the above technical purpose, the technical solution of the utility model provides a high and low temperature test box, including:
[0006] A box body, comprising an inner box and a box door, wherein a test chamber is formed in the inner box, a chamber wall of the test chamber is provided with an opening, first through holes corresponding to each other and communicating with the test chamber are provided on the top plate and the bottom plate of the inner box, and two first through holes are used for the test piece to pass through, and the box door is provided at the opening of the test chamber to make the opening of the test chamber in an open or closed state;
[0007] A heating mechanism, used for supplying heat to the test chamber;
[0008] A refrigeration mechanism is used to supply cooling to the test chamber.
[0009] Furthermore, the top plate and the bottom plate of the inner box are provided with first slots corresponding to each other, and the two first slots are respectively used for the upper and lower ends of the specimen on the tensile testing machine to slide into, and the inner ends of the first slots are semi-arc structures. The box body also includes two first blocking blocks, and the two first blocking blocks are respectively used to be clamped in the corresponding first slots to form the first through hole at the inner ends of the first slots.
[0010] Furthermore, the box body also includes a partition, which is fixed in the test cavity to separate a front cavity close to the opening of the test cavity and a rear cavity away from the opening of the test cavity. There is a distance between the bottom of the partition and the bottom of the test cavity so that the front cavity and the rear cavity are connected to each other.
[0011] Furthermore, the high and low temperature test chamber also includes an exhaust fan, the inlet and outlet ends of which are respectively connected to the upper part of the front chamber and the upper part of the rear chamber, so that the gas in the test chamber circulates in the front chamber and the rear chamber.
[0012] Furthermore, the box body also includes an outer box, a receiving cavity is formed in the outer box, a cavity wall of the receiving cavity is set as an opening, and second through holes corresponding to each other and connected to the receiving cavity are opened on the top plate and the bottom plate of the outer box, and the two second through holes are used for allowing the test pieces to pass through. The inner box is arranged in the receiving cavity and forms a hollow structure between the cavity wall of the receiving cavity, and the box door is arranged at the opening of the receiving cavity so that the opening of the test cavity and the opening of the receiving cavity are both in an open or closed state.
[0013] Furthermore, the top plate and the bottom plate of the outer box are provided with second slots corresponding to each other, and the two second slots are respectively used for the upper and lower ends of the specimen on the tensile testing machine to slide into, and the inner ends of the second slots are semi-arc structures. The box body also includes two second blocking blocks, and the two second blocking blocks are respectively used to be clamped in the corresponding second slots to form the second through hole at the inner ends of the second slots.
[0014] Furthermore, the outer box is provided with a plurality of heat dissipation holes which are all connected with the receiving cavity.
[0015] Furthermore, the high and low temperature test box also includes an exhaust fan, the inlet end of which is connected to the receiving cavity to discharge the hot air or cold air in the receiving cavity to the outside of the outer box.
[0016] Furthermore, the heating mechanism includes at least one heating tube, and the heating end of each heating tube is located in the test chamber to heat the air in the test chamber.
[0017] Furthermore, the refrigeration mechanism includes a liquid nitrogen pipe and a solenoid valve, one end of the liquid nitrogen pipe is connected to the test chamber, the other end of the liquid nitrogen pipe extends to the outside of the outer box and is connected to the liquid nitrogen tank to introduce liquid nitrogen into the test chamber, and the solenoid valve is arranged on the liquid nitrogen pipe.
[0018] Compared with the prior art, the beneficial effects of the utility model include: when in use, the specimen is passed through the two first through holes, and both ends of the specimen are located outside the box. At this time, the middle section of the specimen is located in the test chamber, and the box door is closed. The two ends of the specimen are clamped respectively by the clamping mechanism on the tensile testing machine, and the specimen can be subjected to a tensile test by the tensile testing machine. The heating mechanism is operated to supply heat to the test chamber through the heating mechanism, and the refrigeration mechanism is operated to supply cold to the test chamber through the refrigeration mechanism, so that the specimen can be subjected to a high and low temperature test. This high and low temperature test chamber is specially designed for the tensile testing machine, so that when the product is subjected to a tensile test on the tensile testing machine, it is also located in the insulated box at the same time to conduct a high and low temperature test. It can meet the needs of the product for conducting tensile tests and high and low temperature tests at the same time, and can also meet the needs of the product for conducting tensile tests in high and low temperature environments. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 This is a three-dimensional structural schematic diagram of a high and low temperature test box provided by the utility model;
[0020] Figure 2 yes Figure 1 A schematic diagram of the internal structure of a high and low temperature test chamber;
[0021] In the figure: 100 - box body, 110 - inner box, 111 - test chamber, 112 - first through hole, 113 - first notch, 120 - box door, 130 - first blocking block, 140 - partition, 150 - outer box, 151 - receiving chamber, 152 - second through hole, 153 - second notch, 154 - heat dissipation hole, 160 - second blocking block, 170 - roller, 180 - protection switch, 200 - heating mechanism, 210 - heating pipe, 300 - cooling mechanism, 310 - liquid nitrogen pipe, 320 - solenoid valve, 400 - exhaust fan, 500 - exhaust fan, 600 - pressure relief mechanism, 610 - pressure relief pipe, 620 - pressure relief valve, 700 - control panel. DETAILED DESCRIPTION
[0022] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.
[0023] The utility model provides a high and low temperature test box, the structure of which is as follows Figure 1 and Figure 2 As shown, it includes a box body 100, a heating mechanism 200 and a cooling mechanism 300. The box body 100 includes an inner box 110 and a box door 120. A test cavity 111 is formed in the inner box 110. A cavity wall of the test cavity 111 is set as an opening. First through holes 112 corresponding to each other and connected to the test cavity 111 are opened on the top plate and the bottom plate of the inner box 110. The two first through holes 112 are used for test pieces to pass through. The box door 120 is set at the opening of the test cavity 111 to make the opening of the test cavity 111 in an open or closed state; the heating mechanism 200 is used to supply heat to the test cavity 111; the cooling mechanism 300 is used to supply cold to the test cavity 111.
[0024] When in use, the specimen is passed through the two first through holes 112, and both ends of the specimen are located outside the box body 100. At this time, the middle section of the specimen is located in the test cavity 111, and the box door 120 is closed. The two ends of the specimen are clamped respectively by the clamping mechanism on the tensile testing machine, and the specimen can be subjected to a tensile test by the tensile testing machine. The heating mechanism 200 is controlled to supply heat to the test cavity 111 through the heating mechanism 200, and the refrigeration mechanism 300 is controlled to supply cold to the test cavity 111 through the refrigeration mechanism 300, so that the specimen can be subjected to a high and low temperature test. This high and low temperature test box is specially designed for the tensile testing machine, so that when the product is subjected to a tensile test on the tensile testing machine, it is also located in the heat preservation box at the same time to conduct a high and low temperature test. It can meet the needs of the product to conduct tensile tests and high and low temperature tests at the same time, and can also meet the needs of the product to conduct tensile tests in high and low temperature environments.
[0025] As a preferred embodiment, please refer to Figure 1 and Figure 2 The top plate and the bottom plate of the inner box 110 are provided with first slots 113 corresponding to each other, and the two first slots 113 are respectively used for the upper and lower ends of the specimen on the tensile machine to slide into, and the inner ends of the first slots 113 are semi-arc structures. The box body 100 also includes two first blocking blocks 130, and the two first blocking blocks 130 are respectively used to be clamped in the corresponding first slots 113 to form the first through holes 112 at the inner ends of the first slots 113. When the two first blocking blocks 130 are removed, it is convenient for the upper and lower ends of the specimen on the tensile machine to enter the two first through holes 112 or to be moved out of the two first through holes 112, making it more convenient to move the upper and lower specimens. When the two first blocking blocks 130 are respectively clamped in the corresponding first slots 113, the first slots 113 can be blocked to prevent the heat or cold air in the test cavity 111 from escaping.
[0026] As a preferred embodiment, please refer to Figure 2 The box body 100 also includes a partition 140, which is fixed in the test chamber 111 to separate a front chamber close to the opening of the test chamber 111 and a rear chamber away from the opening of the test chamber 111. There is a distance between the bottom of the partition 140 and the bottom of the test chamber 111 so that the front chamber and the rear chamber are connected to each other. The front chamber and the rear chamber are used for gas circulation, so that the hot air or cold air in the test chamber 111 is distributed more evenly.
[0027] As a preferred embodiment, please refer to Figure 2 The high and low temperature test chamber also includes an exhaust fan 400, the inlet end and the outlet end of the exhaust fan 400 are respectively connected to the upper part of the front chamber and the upper part of the rear chamber, so that the gas in the test chamber 111 forms a circulation in the front chamber and the rear chamber, thereby improving the circulation effect of the gas in the front chamber and the rear chamber.
[0028] As a preferred embodiment, please refer to Figure 1 and Figure 2 The box body 100 also includes an outer box 150, and a receiving cavity 151 is formed in the outer box 150. A cavity wall of the receiving cavity 151 is set as an opening. Second through holes 152 corresponding to each other and connected to the receiving cavity 151 are opened on the top plate and the bottom plate of the outer box 150. The two second through holes 152 are used for the test piece to pass through. The inner box 110 is arranged in the receiving cavity 151, and a hollow structure is formed between the cavity wall of the receiving cavity 151. The box door 120 is arranged at the opening of the receiving cavity 151, so that the opening of the test cavity 111 and the opening of the receiving cavity 151 are both in an open or closed state. The hollow structure formed between the inner box 110 and the cavity wall of the receiving cavity 151 can prevent the loss of hot air or cold air in the test cavity 111, and play a role in heat preservation or cold preservation.
[0029] As a preferred embodiment, please refer to Figure 1 and Figure 2The top plate and the bottom plate of the outer box 150 are provided with second slots 153 corresponding to each other, and the two second slots 153 are respectively used for the upper and lower ends of the specimen on the tensile machine to slide into, and the inner ends of the second slots 153 are semi-arc structures. The box body 100 also includes two second blocking blocks 160, and the two second blocking blocks 160 are respectively used to be clamped in the corresponding second slots 153 to form the second through holes 152 at the inner ends of the second slots 153. When the two second blocking blocks 160 are removed, it is convenient for the upper and lower ends of the specimen on the tensile machine to enter the two second through holes 152 or to be moved out of the two second through holes 152, making it more convenient to move the upper and lower specimens. When the two second blocking blocks 160 are respectively clamped in the corresponding second slots 153, the second slots 153 can be blocked to prevent the heat or cold air in the test cavity 111 from escaping.
[0030] As a preferred embodiment, please refer to Figure 1 and Figure 2 The outer box 150 is provided with a plurality of heat dissipation holes 154 which are all connected to the receiving cavity 151 . The hot air or cold air in the receiving cavity 151 can be dissipated along the heat dissipation holes 154 , so as to prevent the outer box 150 from being overheated or overcooled.
[0031] As a preferred embodiment, please refer to Figure 2 The high and low temperature test box also includes an exhaust fan 500, the inlet end of which is connected to the receiving chamber 151 to discharge the hot air or cold air in the receiving chamber 151 to the outside of the outer box 150, thereby improving the exhaust effect of the hot air or cold air in the receiving chamber 151 and preventing the outer box 150 from overheating or overcooling.
[0032] As a preferred embodiment, please refer to Figure 2 The heating mechanism 200 includes at least one heating tube 210, and the heating end of each heating tube 210 is located in the test cavity 111 to heat the air in the test cavity 111. When each heating tube 210 is in a powered-on state, the air in the test cavity 111 can be heated. When each heating tube 210 is in a powered-off state, the heating of the air in the test cavity 111 can be stopped.
[0033] As a preferred embodiment, please refer to Figure 2The refrigeration mechanism 300 includes a liquid nitrogen pipe 310 and a solenoid valve 320. One end of the liquid nitrogen pipe 310 is connected to the test chamber 111. The other end of the liquid nitrogen pipe 310 extends to the outside of the outer box 150 and is connected to the liquid nitrogen tank to introduce liquid nitrogen into the test chamber 111. The solenoid valve 320 is arranged on the liquid nitrogen pipe 310. When the solenoid valve 320 is opened, liquid nitrogen enters the test chamber 111 through the liquid nitrogen pipe 310. Since the temperature of liquid nitrogen is relatively low, it will perform heat exchange with the air in the test chamber 111, thereby reducing the temperature of the air in the test chamber 111.
[0034] As a preferred embodiment, please refer to Figure 1 and Figure 2 The high and low temperature test box also includes a pressure relief mechanism 600, which includes a pressure relief pipe 610 and a pressure relief valve 620. One end of the pressure relief pipe 610 is connected to the test chamber 111, and the other end of the pressure relief pipe 610 extends to the outside of the outer box 150 to discharge the excessive pressure in the test chamber 111. The pressure relief valve 620 is arranged on the pressure relief pipe 610. When the pressure in the test chamber 111 is too high, the pressure relief valve 620 opens, and the air in the test chamber 111 is discharged along the pressure relief pipe 610, so that the pressure in the test chamber 111 is restored to a preset state.
[0035] As a preferred embodiment, the box door 120 includes a door panel, at least one sealing ring, a plurality of hollow-structured glasses and a conductive member. The door panel is a hollow structure. Each of the sealing rings is arranged on the side wall of the door panel from the inside to the outside, which can improve the sealing effect of the box door 120 on the test cavity 111 and the receiving cavity 151. Each of the glasses is fixedly arranged in the door panel at intervals. The conductive member is arranged on the side wall of the door panel. The door panel is set as a hollow structure, and a plurality of hollow-structured glasses are arranged in the door panel, which can improve the thermal insulation effect of the box door 120.
[0036] As a preferred embodiment, please refer to Figure 1 The box body 100 further includes a plurality of rollers 170 , each of which is fixedly mounted on the bottom of the outer box 150 to facilitate the movement of the test box.
[0037] As a preferred embodiment, please refer to Figure 1 The rollers 170 are track wheels, and each of the track wheels is slidably arranged on the track of the tensile machine. When the high and low temperature test chamber is not needed, the test chamber can be removed.
[0038] As a preferred embodiment, please refer to Figure 1The box body 100 also includes a protection switch 180, which is arranged on the outer box 150. When the box door 120 is closed, the protection switch 180 is electrically connected to the conductive member, and the power supply is in a closed state. When the box door 120 is opened, the protection switch 180 is disconnected from the conductive member, and the power supply is in an open state. In actual use, the protection switch 180 is electrically connected to the positive or negative pole of the power supply. When the protection switch 180 is electrically connected to the positive pole of the power supply, the conductive member is electrically connected to the negative pole of the power supply. When the protection switch 180 is electrically connected to the negative pole of the power supply, the conductive member is electrically connected to the positive pole of the power supply.
[0039] As a preferred embodiment, please refer to Figure 1 The high and low temperature test box also includes a control panel 700, which is arranged on the outer box 150 and is electrically connected to the exhaust fan 400, the exhaust fan 500, each of the heating tubes 210, the solenoid valve 320 and the pressure relief valve 620 to control the on and off of the exhaust fan 400, the exhaust fan 500, each of the heating tubes 210, the solenoid valve 320 and the pressure relief valve 620 and the power supply.
[0040] In order to better understand the present invention, the following Figure 1 - Figure 2 The working principle of the technical solution of the utility model is described in detail:
[0041] When in use, the box door 120 is opened, and the two first blocking blocks 130 and the two second blocking blocks 160 are removed, so that the upper and lower ends of the specimen on the tensile testing machine can enter the two first through holes 112 and the two second through holes 152 respectively, making it more convenient to put the specimen in and out. Then, the two first blocking blocks 130 are respectively clamped in the corresponding first notches 113, and the two second blocking blocks 160 are respectively clamped in the corresponding second notches 153. The first blocking blocks 130 can be used to block the first notches 113, and the second blocking blocks 160 can be used to block the second notches 153 to prevent the heat or cold air in the test cavity 111 from escaping. At this time, the middle section of the specimen is located in the test cavity 111, and the box door 120 is closed. The two ends of the specimen are clamped respectively by the clamping mechanism on the tensile testing machine. The specimen can be subjected to a tensile test by the tensile testing machine, and the control panel 700 can be operated to make each Each of the heating tubes 210 is in an energized state, and the air in the test chamber 111 can be heated by each of the heating tubes 210. Then, the control panel 700 is manipulated to make each of the heating tubes 210 in an off-power state, so that each of the heating tubes 210 stops heating the air in the test chamber 111. The control panel 700 is manipulated to open the solenoid valve 320, and liquid nitrogen enters the test chamber 111 through the liquid nitrogen tube 310. Since the temperature of liquid nitrogen is relatively low, it will exchange heat with the air in the test chamber 111, thereby reducing the temperature of the air in the test chamber 111, so that the specimen can be subjected to high and low temperature tests. This high and low temperature test chamber is specially designed for tensile testing machines, so that when the product is subjected to a tensile test on the tensile testing machine, it is also located in an insulated box at the same time to conduct high and low temperature tests. This can meet the needs of the product for conducting tensile tests and high and low temperature tests at the same time, and can also meet the needs of the product for conducting tensile tests in high and low temperature environments.
[0042] The high and low temperature test box provided by the utility model has the following beneficial effects:
[0043] (1) Remove the two first blocking blocks 130 and the two second blocking blocks 160 to facilitate the upper and lower ends of the test piece on the tensile testing machine to enter the two first through holes 112 and the two second through holes 152, respectively, making it more convenient to put the test piece in and out;
[0044] (2) A plurality of track wheels are arranged at the bottom of the outer box 150, and each track wheel is slidably arranged on the track of the tensile machine. When the high and low temperature test box is not needed, the test box can be removed, which has strong applicability;
[0045] (3) This high and low temperature test chamber is specially designed for the tensile testing machine. When the product is subjected to the tensile test on the tensile testing machine, it is also placed in the insulated box for the high and low temperature test. This can meet the needs of the product to undergo tensile test and high and low temperature test at the same time, and can also meet the needs of the product to undergo tensile test in high and low temperature environment.
[0046] The specific implementation methods of the utility model described above do not constitute a limitation on the protection scope of the utility model. Any other corresponding changes and modifications made according to the technical concept of the utility model should be included in the protection scope of the claims of the utility model.
Claims
1. A high and low temperature test chamber, characterized in that: include: A box body, comprising an inner box and a box door, wherein a test chamber is formed in the inner box, a chamber wall of the test chamber is provided with an opening, first through holes corresponding to each other and communicating with the test chamber are provided on the top plate and the bottom plate of the inner box, and two first through holes are used for the test piece to pass through, and the box door is provided at the opening of the test chamber to make the opening of the test chamber in an open or closed state; A heating mechanism, used for supplying heat to the test chamber; A refrigeration mechanism is used to supply cooling to the test chamber.
2. The high and low temperature test chamber according to claim 1, characterized in that: The top plate and the bottom plate of the inner box are provided with first slots corresponding to each other, and the two first slots are respectively used for the upper and lower ends of the specimen on the tensile testing machine to slide into, and the inner ends of the first slots are semi-arc structures. The box body also includes two first blocking blocks, and the two first blocking blocks are respectively used to be clamped in the corresponding first slots to form the first through hole at the inner ends of the first slots.
3. The high and low temperature test chamber according to claim 1, characterized in that: The box body also includes a partition, which is fixed in the test cavity to separate a front cavity close to the opening of the test cavity and a rear cavity away from the opening of the test cavity. There is a distance between the bottom of the partition and the bottom of the test cavity so that the front cavity and the rear cavity are connected to each other.
4. The high and low temperature test box according to claim 3, characterized in that: It also includes an exhaust fan, the inlet end and the outlet end of the exhaust fan are respectively connected to the upper part of the front cavity and the upper part of the rear cavity, so that the gas in the test cavity forms a circulation in the front cavity and the rear cavity.
5. The high and low temperature test chamber according to claim 1, characterized in that: The box body also includes an outer box, a receiving cavity is formed in the outer box, a cavity wall of the receiving cavity is set as an opening, and second through holes corresponding to each other and connected to the receiving cavity are opened on the top plate and the bottom plate of the outer box, and the two second through holes are used for the test pieces to pass through. The inner box is arranged in the receiving cavity and forms a hollow structure between the cavity wall of the receiving cavity, and the box door is arranged at the opening of the receiving cavity so that the opening of the test cavity and the opening of the receiving cavity are both in an open or closed state.
6. The high and low temperature test box according to claim 5, characterized in that: The top plate and the bottom plate of the outer box are provided with second slots corresponding to each other, and the two second slots are respectively used for the upper and lower ends of the specimen on the tensile testing machine to slide into, and the inner ends of the second slots are semi-arc structures. The box body also includes two second blocking blocks, and the two second blocking blocks are respectively used to be clamped in the corresponding second slots to form the second through hole at the inner ends of the second slots.
7. The high and low temperature test box according to claim 5, characterized in that: The outer box is provided with a plurality of heat dissipation holes which are all communicated with the receiving cavity.
8. The high and low temperature test box according to claim 5, characterized in that: An exhaust fan is also included, and an inlet end of the exhaust fan is communicated with the receiving cavity to discharge hot air or cold air in the receiving cavity to the outside of the outer box.
9. The high and low temperature test box according to claim 1, characterized in that: The heating mechanism comprises at least one heating tube, and the heating end of each heating tube is located in the test chamber to heat the air in the test chamber.
10. The high and low temperature test box according to claim 5, characterized in that: The refrigeration mechanism includes a liquid nitrogen pipe and a solenoid valve, one end of the liquid nitrogen pipe is connected to the test chamber, the other end of the liquid nitrogen pipe extends to the outside of the outer box and is connected to the liquid nitrogen tank to introduce liquid nitrogen into the test chamber, and the solenoid valve is arranged on the liquid nitrogen pipe.