Temperature tester

Abstract

The utility model belongs to temperature detection technical field discloses a temperature tester. Temperature tester includes base and thermocouple, one side of base is provided with magnet, the one side of base installation magnet is provided with perforation, thermocouple includes temperature sensing head and signal line, temperature sensing head is inserted in base, and have the first working condition that detection end is by the first working condition that the first working condition of detection end is retracted in the perforation, and the second working condition that detection end is pressed, one end of signal line is connected with temperature sensing head, and the other end is connected with temperature measuring instrument. The utility model need not to dig hole to test the temperature of the structure that needs to test temperature with the help of thermocouple, and the operation is simple, and the time consumption is short, thereby can improve production efficiency, and simultaneously will not cause the damage of hot runner system's structure, thereby guarantee the stability and service life of hot runner system. In addition, since the utility model need not repeatedly dismount thermocouple, can avoid causing the damage of thermocouple.

Description

Technical Field

[0001] This utility model relates to the field of temperature detection technology, and in particular to a temperature tester. Background Technology

[0002] As a core component of complex injection molds, the hot runner system generally includes structures such as manifolds and upper mold plates. During the operation of the hot runner system, it is necessary to periodically monitor the temperature of each structure of the hot runner system to ensure its normal operation.

[0003] Current technology typically involves drilling holes and inserting thermocouples to test the temperature of various structures in a hot runner system. Taking a manifold as an example, when temperature testing is required, workers first need to drill temperature sensing holes in the manifold, then insert the thermocouple's sensing head into the holes, and finally fix the thermocouple to the manifold. The thermocouple's signal wire extends out of the sensing hole and connects to a temperature measuring instrument to detect the manifold's temperature. Furthermore, after the test is completed, workers manually remove the thermocouples from the manifold.

[0004] As mentioned above, the temperature measurement method of drilling holes and inserting thermocouples is inconvenient to operate, and each temperature measurement takes a long time, which affects production efficiency. At the same time, drilling holes will also cause some damage to the structure of the hot runner system, affecting the stability and service life of the hot runner system. Moreover, repeated disassembly and reassembly of thermocouples can easily damage the thermocouples.

[0005] Therefore, the above problems urgently need to be solved. Utility Model Content

[0006] The purpose of this invention is to provide a temperature tester to solve the problems of inconvenient operation of temperature measurement by drilling holes and inserting thermocouples, which requires a long time for each measurement and thus affects production efficiency. At the same time, drilling holes will also cause certain damage to the structure of the hot runner system, affecting the stability and service life of the hot runner system. Moreover, repeated disassembly and reassembly of thermocouples can easily damage the thermocouples.

[0007] To achieve this objective, the present invention adopts the following technical solution:

[0008] Temperature tester, including:

[0009] A base with a magnet mounted on one side, and a perforation provided on the side of the base where the magnet is mounted;

[0010] A thermocouple includes a temperature sensing head and a signal line. The temperature sensing head is inserted into the base and has a first working state in which the detection end extends out of the base through the perforation, and a second working state in which the detection end is compressed and retracts into the perforation. One end of the signal line is connected to the temperature sensing head, and the other end can be connected to a temperature measuring instrument.

[0011] Preferably, the temperature tester further includes a protective sheet, which is inverted and attached to the outer periphery of the detection end.

[0012] Preferably, the protective sheet is made of a material with high thermal conductivity.

[0013] Preferably, the two ends of the protective sheet are movably mounted on the base, and the middle part is upside down on the outer periphery of the detection end. The two ends of the protective sheet can move relative to each other when the temperature sensing head switches to the first working state, and can move away from each other when the temperature sensing head switches to the second working state.

[0014] Preferably, the base has a groove on the side where the magnet is mounted, and the protective plate has a first hole and a second hole at both ends. The first hole and the second hole extend along the extension direction of the groove. A first connector and a second connector are mounted on both sides of the groove along its extension direction. One end of the protective plate is fitted onto the outer periphery of the first connector through the first hole, and the other end of the protective plate is fitted onto the outer periphery of the second connector through the second hole.

[0015] Preferably, the first connector is provided with a first stop portion, one end of the protective plate is stopped between the first stop portion and the bottom of the slide groove, and the second connector is provided with a second stop portion, the other end of the protective plate is stopped between the second stop portion and the bottom of the slide groove.

[0016] Preferably, the base has an internal mounting cavity, the perforation is located on one side of the mounting cavity and communicates with the mounting cavity, the temperature sensor is installed in the perforation, one end of the temperature sensor is the detection end, the other end of the temperature sensor extends into the mounting cavity and is connected to the signal line, and the signal line exits the base from the other side of the mounting cavity.

[0017] Preferably, a spring is sleeved around the outer periphery of the signal line, and the spring abuts against the cavity wall between the temperature sensing head and the mounting cavity.

[0018] Preferably, a limiting part is provided between the temperature sensing head and the signal line, and the spring abuts against the limiting part and the cavity wall of the mounting cavity. In the first working state, the limiting part abuts against the cavity wall of the mounting cavity on the side where the perforation is opened.

[0019] Preferably, two or more of the magnets are mounted on one side of the base.

[0020] The beneficial effects of this utility model are:

[0021] In this invention, operators can manipulate the temperature tester to align the sensing end of the temperature probe with the temperature measuring point on the structure requiring temperature testing. The base is then secured to the outer periphery of the structure using a magnet. After attachment, the sensing end is pressed and retracts into the perforation, still contacting the temperature measuring point on the structure. The temperature tester can then perform temperature testing on the structure. In other words, this invention allows the temperature tester to be fixed to or removed from the structure using a magnet before and after each temperature test. Therefore, this invention eliminates the need for drilling holes to perform temperature testing using thermocouples, simplifying operation and reducing time consumption, thus improving production efficiency. Furthermore, it avoids damage to the hot runner system structure, ensuring its stability and lifespan. Additionally, since this invention eliminates the need for repeated thermocouple disassembly and reassembly, it prevents thermocouple damage. Attached Figure Description

[0022] Figure 1 This is a cross-sectional view of the temperature tester along the longitudinal section of the temperature sensing head in an embodiment of this utility model;

[0023] Figure 2 This is a front view of the protective sheet in an embodiment of this utility model;

[0024] Figure 3 This is a top view of the protective sheet in an embodiment of this utility model.

[0025] In the picture:

[0026] 1. Base; 11. Magnet; 12. Perforation; 13. Slide groove; 14. First connector; 141. First stop; 15. Second connector; 151. Second stop; 16. Mounting cavity;

[0027] 2. Thermocouple; 21. Temperature sensor; 211. Detection end; 22. Signal line; 221. Spring; 23. Limiting part;

[0028] 3. Protective plate; 31. First hole; 32. Second hole. Detailed Implementation

[0029] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0030] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0031] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0032] In the description of this embodiment, the terms "upper," "lower," "right," and "left," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0033] Please see Figures 1 to 3 This embodiment provides a temperature tester, which allows staff to perform temperature tests on various structures of the hot runner system.

[0034] Specifically, the temperature tester includes a base 1 and a thermocouple 2. A magnet 11 is installed on one side of the base 1, so that the operator can operate the temperature tester and make the base 1 adhere to the outer periphery of the structure whose temperature needs to be tested by means of the magnet 11.

[0035] In addition, a perforation 12 is provided on the side of the base 1 where the magnet 11 is installed, and the thermocouple 2 includes a temperature sensing head 21 and a signal line 22. The temperature sensing head 21 is inserted into the base 1 and has a first working state in which the detection end 211 extends out of the base 1 through the perforation 12, and a second working state in which the detection end 211 is pressed and retracts into the perforation 12. One end of the signal line 22 is connected to the temperature sensing head 21, and the other end can be connected to a thermometer (not shown in the figure).

[0036] Since the temperature sensor 21 in the first working state has its detection end 211 extending out of the base 1, when the operator operates the temperature tester and makes the base 1 adsorbed to the outer periphery of the structure whose temperature needs to be tested by the magnet 11, the detection end 211 of the temperature sensor 21 can be aligned with the temperature measuring point on the structure whose temperature needs to be tested first, and then the base 1 can be adsorbed to the outer periphery of the structure whose temperature needs to be tested by the magnet 11.

[0037] When the base 1 is attracted to the structure whose temperature needs to be tested via the magnet 11, the sensing end 211 is pressed and retracts into the perforation 12, thus ensuring that the base 1 can be stably attracted to the structure whose temperature needs to be tested via the magnet 11. Moreover, after attraction, the sensing end 211 of the temperature sensor 21 still abuts against the temperature measuring point on the structure whose temperature needs to be tested. Therefore, the temperature tester can then perform temperature testing on the structure whose temperature needs to be tested.

[0038] After the test is completed, the staff only needs to pry the base 1 off the structure where the temperature needs to be tested, thus solving the problem that the thermocouple 2 is easily damaged due to repeated disassembly and assembly.

[0039] Therefore, in this embodiment, the operator can manipulate the temperature tester to align the detection end 211 of the temperature sensor 21 with the temperature measuring point on the structure to be tested, and use the magnet 11 on the base 1 to firmly attach the base 1 to the outer periphery of the structure to be tested. After the base 1 is attached, the detection end 211 is pressed and retracts into the perforation 12, still contacting the temperature measuring point on the structure to be tested. Then, the temperature tester can perform temperature testing on the structure. That is, in this embodiment, before and after each temperature test, the temperature tester can be fixed to the structure to be tested or removed from the structure simply by using the magnet 11. Thus, this embodiment allows for temperature testing of the structure to be tested using the thermocouple 2 without drilling holes, which is simple to operate and time-saving, thereby improving production efficiency. It also avoids damage to the structure of the hot runner system, ensuring the stability and service life of the hot runner system. Furthermore, since this embodiment does not require repeated disassembly and reassembly of the thermocouple 2, damage to the thermocouple 2 can be avoided.

[0040] Taking a manifold as an example, when a temperature test is required on the manifold, the operator can hold a temperature tester and align the sensing end 211 of the temperature sensor 21 with the temperature measurement point on the manifold. Then, the operator attaches the base 1 to the manifold. Simultaneously, the sensing end 211 of the temperature sensor 21 retracts into the base 1 due to pressure, maintaining contact with the temperature measurement point on the manifold. After the base 1 is attached to the manifold, the operator can connect the signal line 22 to the temperature sensor to perform the temperature test on the manifold. After the temperature test is completed, the operator disconnects the signal line 22 from the temperature sensor and removes the base 1 from the manifold.

[0041] Based on the above, it is worth noting that in this embodiment, after each temperature test, the operator disconnects the signal line 22 from the temperature measuring instrument and then simply removes the base 1 from the structure requiring the temperature test. During the next temperature test, the operator can reconnect the signal line 22 to the temperature measuring instrument.

[0042] It is understood that in this embodiment, the signal line 22 and the thermometer can be connected by a quick-release connector or other electrical connection structure that enables quick assembly and disassembly, thereby facilitating the connection or disconnection of the signal line 22 and the thermometer by the operator. This embodiment does not impose any specific restrictions on this.

[0043] It is also worth noting that in this embodiment, the base 1 is wrapped with a high-temperature resistant material to prevent the base 1 from being damaged by heat, thereby ensuring the service life of the temperature tester.

[0044] Furthermore, in this embodiment, two or more magnets 11 are installed on one side of the base 1, which can increase the adsorption force between the base 1 and the structure that needs to be tested for temperature, thereby ensuring that the base 1 can be more firmly adsorbed onto the structure that needs to be tested for temperature.

[0045] Based on the above description, the base 1 has an internal mounting cavity 16, and a through hole 12 is located on one side of the mounting cavity 16 and communicates with it. The temperature sensor 21 is installed in the through hole 12. One end of the temperature sensor 21 is the detection end 211, and the other end of the temperature sensor 21 extends into the mounting cavity 16 and is connected to the signal line 22. The signal line 22 exits the base 1 from the other side of the mounting cavity 16.

[0046] That is, in this embodiment, a perforation 12 is provided on one side of the mounting cavity 16, and the signal line 22 is inserted into the mounting cavity 16 from the other side of the mounting cavity 16. The temperature sensor 21 is disposed in the perforation 12, one end of the temperature sensor 21 is the detection end 211, and the other end of the temperature sensor 21 is the connection end, which extends into the mounting cavity 16 and is connected to the signal line 22.

[0047] In the first working state, the detection end 211 of the temperature sensor 21 extends out of the perforation 12. When the base 1 is adsorbed onto the structure where the temperature needs to be tested, the detection end 211 is pressed, and the temperature sensor 21 as a whole retracts into the mounting cavity 16. At the same time, the detection end 211 retracts into the perforation 12.

[0048] As described above, a spring 221 is sleeved around the outer periphery of the signal line 22. The spring 221 abuts against the cavity wall between the temperature sensor 21 and the mounting cavity 16. The spring 221 can reset the temperature sensor 21. Specifically, when the base 1 is attached to the structure where the temperature needs to be tested, the detection end 211 is pressed, and the temperature sensor 21 retracts into the mounting cavity 16. At this time, the spring 221 is compressed and deformed. When the base 1 is removed from the structure where the temperature needs to be tested, the spring 221 returns to its original deformation, thereby pushing the temperature sensor 21 to reset, so that the detection end 211 of the temperature sensor 21 re-extends out of the perforation 12 for the next temperature test.

[0049] Furthermore, a limiting part 23 is provided between the temperature sensor 21 and the signal line 22. The spring 221 abuts against the limiting part 23 and the cavity wall of the mounting cavity 16. In the first working state, the limiting part 23 abuts against the side cavity wall of the mounting cavity 16 where the perforation 12 is opened, thereby limiting the length of the temperature sensor 21 extending out of the perforation 12.

[0050] In addition, the temperature tester also includes a protective plate 3, which is upside down on the outer periphery of the detection end 211, thereby protecting the detection end 211 from damage due to accidental impact.

[0051] Understandably, based on the above, the protective sheet 3 is placed between the temperature sensor 21 and the structure whose temperature needs to be tested. Therefore, in order for the temperature sensor 21 to accurately measure the temperature of the structure whose temperature needs to be tested, in this embodiment, the protective sheet 3 is made of a material with high thermal conductivity, thereby enabling the heat of the structure whose temperature needs to be tested to be quickly transferred to the temperature sensor 21, thereby improving the accuracy of temperature testing.

[0052] For example, the protective sheet 3 may be made of copper, aluminum, silver or other metals or alloys with high thermal conductivity, thereby enabling the rapid transfer of heat from the structure requiring temperature testing to the temperature sensor 21, thereby improving the accuracy of temperature testing. This embodiment does not impose specific limitations on this.

[0053] Furthermore, the two ends of the protective sheet 3 are movably mounted on the base 1, and the middle part is upside down on the outer periphery of the detection end 211. The two ends of the protective sheet 3 can move relative to each other when the temperature sensing head 21 switches to the first working state, and can move away from each other when the temperature sensing head 21 switches to the second working state.

[0054] When the base 1 is adsorbed onto the structure where the temperature needs to be tested, the protective sheet 3 is first compressed and transmits the pressure to the temperature sensor 21. When the protective sheet 3 is compressed, the two ends of the protective sheet 3 can move in opposite directions, so that the part of the protective sheet 3 that is facing the detection end 211 can move together with the detection end 211. Thus, when the temperature sensor 21 switches from the first working state to the second working state, the protective sheet 3 is still in contact with the detection end 211 of the temperature sensor 21, so that the temperature sensor 21 can accurately perform temperature testing.

[0055] Furthermore, after the base 1 is removed from the structure where the temperature needs to be tested, as the temperature sensor 21 switches from the second working state to the first working state, the two ends of the protective sheet 3 can move relative to each other, so that it is always kept upside down on the outer periphery of the detection end 211, so as to facilitate the next temperature test.

[0056] In this embodiment, a groove 13 is provided on the side of the base 1 where the magnet 11 is installed. The two ends of the protective plate 3 are respectively provided with a first hole 31 and a second hole 32. The first hole 31 and the second hole 32 both extend along the extension direction of the groove 13. A first connector 14 and a second connector 15 are respectively installed on both sides of the groove 13 along its extension direction. One end of the protective plate 3 is fitted onto the outer periphery of the first connector 14 through the first hole 31, and the other end of the protective plate 3 is fitted onto the outer periphery of the second connector 15 through the second hole 32. Thus, both ends of the protective plate 3 can slide relative to the base 1 along the extension direction of the groove 13, so that the two ends of the protective plate 3 can move relative to each other when the temperature sensor 21 switches to the first working state, and can move away from each other when the temperature sensor 21 switches to the second working state.

[0057] In addition, the first connector 14 is provided with a first stop 141, and one end of the protective piece 3 is stopped between the first stop 141 and the bottom of the groove 13, thereby preventing the protective piece 3 from falling off the first connector 14.

[0058] Correspondingly, the second connector 15 is provided with a second stop 151, and the other end of the protective piece 3 is stopped between the second stop 151 and the bottom of the groove 13, thereby preventing the protective piece 3 from falling off the second connector 15.

[0059] For example, in this embodiment, the first connector 14 and the second connector 15 are the first screw and the second screw, respectively. Correspondingly, one end of the protective plate 3 is fitted onto the outer periphery of the shank of the first screw through the first hole 31, and the other end of the protective plate 3 is fitted onto the outer periphery of the shank of the second screw through the second hole 32.

[0060] As described above, the first stop 141 is the head of the first screw, and one end of the protective plate 3 stops between the head of the first screw and the bottom of the groove 13. Correspondingly, the second stop 151 is the head of the second screw, and the other end of the protective plate 3 stops between the head of the second screw and the bottom of the groove 13.

[0061] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A temperature tester, characterized in that, include: A base (1) has a magnet (11) installed on one side, and a perforation (12) is provided on the side of the base (1) where the magnet (11) is installed; The thermocouple (2) includes a temperature sensing head (21) and a signal line (22). The temperature sensing head (21) is inserted into the base (1) and has a first working state in which the detection end (211) extends out of the base (1) through the perforation (12) and a second working state in which the detection end (211) is pressed and retracts into the perforation (12). One end of the signal line (22) is connected to the temperature sensing head (21), and the other end can be connected to a thermometer.

2. The temperature tester according to claim 1, characterized in that, The temperature tester also includes a protective sheet (3), which is upside down on the outer periphery of the detection end (211).

3. The temperature tester according to claim 2, characterized in that, The protective sheet (3) is made of a material with high thermal conductivity.

4. The temperature tester according to claim 2, characterized in that, The two ends of the protective plate (3) are movably mounted on the base (1), and the middle part is upside down on the outer periphery of the detection end (211). The two ends of the protective plate (3) can move relative to each other when the temperature sensing head (21) switches to the first working state, and can move away from each other when the temperature sensing head (21) switches to the second working state.

5. The temperature tester according to claim 4, characterized in that, The base (1) has a groove (13) on one side where the magnet (11) is installed. The protective plate (3) has a first hole (31) and a second hole (32) at both ends. The first hole (31) and the second hole (32) extend along the extension direction of the groove (13). The groove (13) has a first connector (14) and a second connector (15) installed on both sides along its extension direction. One end of the protective plate (3) is fitted onto the outer periphery of the first connector (14) through the first hole (31), and the other end of the protective plate (3) is fitted onto the outer periphery of the second connector (15) through the second hole (32).

6. The temperature tester according to claim 5, characterized in that, The first connector (14) is provided with a first stop (141), and one end of the protective plate (3) is stopped between the first stop (141) and the bottom of the groove (13). The second connector (15) is provided with a second stop (151), and the other end of the protective plate (3) is stopped between the second stop (151) and the bottom of the groove (13).

7. The temperature tester according to claim 1, characterized in that, The base (1) has an installation cavity (16) inside. The perforation (12) is located on one side of the installation cavity (16) and communicates with the installation cavity (16). The temperature sensor (21) is installed in the perforation (12). One end of the temperature sensor (21) is the detection end (211). The other end of the temperature sensor (21) extends into the installation cavity (16) and is connected to the signal line (22). The signal line (22) passes through the base (1) from the other side of the installation cavity (16).

8. The temperature tester according to claim 7, characterized in that, A spring (221) is sleeved on the outer periphery of the signal line (22), and the spring (221) abuts against the cavity wall of the temperature sensor (21) and the mounting cavity (16).

9. The temperature tester according to claim 8, characterized in that, A limiting part (23) is provided between the temperature sensing head (21) and the signal line (22). The spring (221) abuts against the limiting part (23) and the cavity wall of the mounting cavity (16). In the first working state, the limiting part (23) abuts against the cavity wall of the mounting cavity (16) on the side where the perforation (12) is opened.

10. The temperature tester according to claim 1, characterized in that, Two or more of the magnets (11) are mounted on one side of the base (1).

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