A high stability Bluetooth temperature measurement probe

Abstract

The present application relates to the technical field of thermometers, and discloses a high-stability Bluetooth temperature measuring probe, including a needle tube having a hollow installation chamber; a handle body, which is plugged into the installation chamber at the tail end of the needle tube and abuts against the tail end of the needle tube; a temperature sensor, which is located in the installation chamber at the head end of the needle tube; an antenna, which is installed inside the needle tube and electrically connected to the temperature sensor; a locking assembly, which simultaneously connects the handle body and the needle tube; the locking assembly includes a locking piece, a locking nut, and two limit nuts, the two limit nuts are threadedly connected to the antenna, the locking piece is clamped between the two limit nuts, and a locking groove is provided on the inner wall of the needle tube; the locking nut is threadedly connected to the antenna, and the locking nut abuts against an end of the handle body away from the needle tube; when the locking piece is clamped in the locking groove, the locking nut presses the handle body to the tail end of the needle tube. The temperature measuring probe handle body of the present application has high connection stability with the needle tube, which effectively alleviates the problem that the ceramic handle body and the needle tube are easy to fall off.

Description

Technical Field

[0001] The present application relates to the technical field of thermometers, and in particular to a high-stability Bluetooth temperature measuring probe. Background Art

[0002] During the food processing and cooking process, such as when grilling and heating ingredients, especially for some thicker ingredients, it is difficult for people to know by observation whether the inside of the ingredients are completely cooked.

[0003] At present, a temperature probe is usually used to penetrate into the food to detect the temperature inside the food, so as to determine whether the food is cooked. The temperature probe usually has a heat-conducting metal shell, a temperature sensor installed inside the metal shell, an antenna for transmitting signals, and a handle installed on the shell; in order to prevent the antenna from being completely shielded and unable to transmit signals to the outside world, the handle is usually made of high-temperature resistant and low-shielding ceramic material; because the handle is made of brittle ceramic material, it is difficult to process fine threads on the brittle ceramic handle and connect it with the shell thread, and it is very easy to produce errors.

[0004] In traditional technical solutions, the handle and the shell are usually connected by tight-fitting insertion. However, the tight-fitting connection of ceramic materials is difficult to precisely process and control the fitting tolerance, resulting in poor fitting stability and easily causing the handle and the shell to fall off during long-term use. Summary of the invention

[0005] In order to improve the problem of poor coordination stability between the handle and the needle tube of the temperature measuring probe in the prior art,

[0006] The high stability Bluetooth temperature measuring probe provided in this application adopts the following scheme:

[0007] A high-stability Bluetooth temperature measuring probe comprises a needle tube having a hollow installation chamber, wherein the needle tube has two ends in the length direction;

[0008] The handle is inserted into the mounting chamber at the rear end of the needle tube and abuts against the rear end of the needle tube;

[0009] A temperature measuring sensor, which is located in the installation chamber at the head end of the needle tube and is used to contact the object to be measured and measure the temperature;

[0010] An antenna, installed inside the needle tube and electrically connected to the temperature sensor, for transmitting a temperature signal;

[0011] A locking assembly, which is connected to the handle body and the needle tube at the same time, and is used to lock the handle body and the needle tube together;

[0012] The locking assembly includes a locking piece, a locking nut and two limit nuts. The two limit nuts are threadedly connected to the antenna. The locking piece is limited between the two limit nuts. A locking groove for clamping the locking piece is provided on the inner wall of the needle tube. The locking nut is threadedly connected to the antenna. The locking nut cooperates with the locking nut to tighten the handle body and limit it to the tail end of the needle tube.

[0013] By adopting the above solution, the handle body is installed on the needle tube with a locking assembly to limit the position, thereby achieving a high-stability installation of the handle body. In the traditional technical solution, since the temperature signal needs to be transmitted to the external mobile smart terminal through the Bluetooth module through the antenna to facilitate temperature monitoring, the handle body of the temperature measuring probe is usually made of a high-temperature resistant ceramic material with poor shielding efficiency; however, it is difficult to process fine threads on the brittle ceramic handle to match the needle tube, and it is easy to break. Therefore, a tight-fitting plug-in method between the handle body and the needle tube is usually adopted, but in this method, the ceramic material is difficult to precisely control production, and it is easy to produce a large matching tolerance, resulting in poor matching stability, and it is easy to cause the handle body and the needle tube to separate from each other during long-term practical use. In the present application, the locking piece is indirectly connected to the antenna by clamping the locking piece through a limit nut, and the locking nut is inserted into the handle body and threadedly connected to the antenna; when the locking piece is engaged in the locking groove inside the needle tube, the antenna is tightened, so that the locking nut presses the handle body against the tail end of the needle tube, thereby achieving high-stability installation of the needle tube and the handle body, and having a better anti-slip effect.

[0014] Optionally, the locking groove is opened around the axis of the needle tube, and the locking piece is in a C-shaped structure. When the locking piece slides in the installation chamber along the length direction of the needle tube, the locking piece is squeezed by the inner wall of the needle tube and elastically deformed.

[0015] By adopting the above solution, the locking groove is arranged around the axis, and the locking piece is in a C shape, so the locking piece can be easily inserted into the locking groove. In some other solutions, the locking groove is not an annular structure. When the locking piece moves with the antenna, the locking piece may rotate relative to the antenna, making it difficult for the locking piece to be accurately inserted into the locking groove, resulting in locking failure. In the technical solution of the present application, the locking groove is arranged around the axis to improve the convenience of the locking piece and improve the fault tolerance of the locking piece and the locking groove.

[0016] Optionally, the locking member has a first sliding portion close to the head end of the needle tube, a second sliding portion close to the tail end of the needle tube, and a guide portion connecting the first sliding portion and the second sliding portion, and the guide portion gradually narrows from the second sliding portion toward the first sliding portion; under normal circumstances, the outer diameter of the first guide portion is smaller than the inner diameter of the installation chamber, and the outer diameter of the second sliding portion is larger than the inner diameter of the installation chamber.

[0017] By adopting the above scheme, by providing a guide part, the locking part can be guided during the process of inserting the antenna into the installation chamber, thereby gradually compressing the locking part. Since the outer diameter of the first sliding part is smaller than the inner diameter of the installation chamber under normal conditions, during the process of inserting the antenna into the first end of the needle tube, the end of the guide part close to the first end of the needle tube can be inserted into the installation chamber, and then relative sliding occurs between the guide part and the inner wall of the installation chamber, thereby gradually compressing and deforming the locking part, so that the locking part can be inserted into the interior of the needle tube, thereby improving the convenience of the locking part being compressed and inserted into the needle tube.

[0018] Optionally, the handle body includes a holding portion and a plug-in portion for inserting into the installation chamber, the diameter of the plug-in portion is adapted to the diameter of the installation chamber, the holding portion has a contact surface connected to the plug-in portion, the outer diameter of the contact surface is equal to the outer diameter of the tail end of the needle tube; when the plug-in portion is fully inserted into the installation chamber, the contact surface abuts against the tail end of the needle tube.

[0019] By adopting the above solution, the outer diameter of the gripping part is equal to the outer diameter of the needle tube, so that the connection between the handle body and the needle tube is smooth. By setting the plug-in part, the handle body can be preliminarily plugged and installed on the needle tube, and the outer diameter of the gripping part is aligned with the outer diameter of the needle tube, so that the connection between the abutting surface and the tail end of the needle tube is aligned, the transition is smooth, and the smoothness of the overall appearance is improved.

[0020] Optionally, the outer wall of the limit nut is fitted to the inner wall of the installation chamber, and a glue injection chamber for injecting glue for sealing is formed between the limit nut near the tail end of the needle tube and the tail end of the needle tube, and the plug-in part is plugged into the glue injection chamber.

[0021] By adopting the above scheme, the outer wall of the limit nut fits the inner wall of the installation chamber, effectively preventing glue from penetrating into the direction of the head end of the needle tube. In actual production conditions, the antenna carrying the limit nut and the locking piece is inserted into the installation chamber, so that the locking piece and the locking groove are engaged, and then the tail end of the needle tube needs to inject glue into the installation chamber, and then the handle body is inserted into the installation chamber, and the locking nut is inserted into the handle body and tightened with the antenna, so that the handle body is pressed tightly against the needle tube. By making the outer wall of the limit nut fit the inner wall of the installation chamber, on the one hand, it can prevent glue from penetrating into the head end of the needle tube and affecting the work of other parts; on the other hand, when the handle body is inserted into the installation chamber, the glue can flow back to the tail end of the needle tube, thereby filling the gap between the handle body and the inner wall of the needle tube, thereby further improving the connection stability between the handle body and the needle tube, and improving the sealing performance.

[0022] Optionally, it also includes a spring clip and a PCB control board, wherein the PCB control board electrically connects the antenna to the temperature sensor, there are two spring clips, and the two spring clips are symmetrically arranged on the two surfaces of the PCB control board. The spring clips are compressed and simultaneously abut against the PCB control board and the inner wall of the needle tube.

[0023] By adopting the above scheme, spring sheets are arranged on the two board surfaces of the PCB control board, so that the PCB control board is supported in the middle of the hollow chamber by the two spring sheets, thereby playing a supporting effect on the PCB control board, which can effectively reduce the contact between the PCB control board and the needle tube, and reduce the possibility of the PCB control board being severely heated and damaged due to heat conduction of the needle tube during the temperature measurement process, and also play a protective role on the PCB control board.

[0024] Optionally, the PCB control board is electrically connected to a chargeable and dischargeable power supply module, the positive pole of the power supply module is electrically connected to the antenna, the negative pole of the power supply module is electrically connected to the needle tube through a spring clip, and the needle tube, spring clip and locking nut are all made of metal, the locking nut can connect the charging module to the positive pole of an external power supply, and the needle tube can connect the power supply module to the negative pole of an external power supply.

[0025] By adopting the above scheme, a rechargeable and dischargeable power supply module is provided, and the negative pole of the power supply component is connected to the negative pole of the external charging device through the needle tube, and the positive pole of the power supply module is connected to the positive pole of the external charging device through the locking nut. Therefore, it can be adapted to a special charging box without the need for additional charging structures and connecting wires. By utilizing the metal conductivity of the antenna and the needle tube, the temperature measuring probe can be charged quickly and conveniently.

[0026] Optionally, a support nut is threadedly connected to one end of the antenna close to the PCB control board, and the outer periphery of the support nut fits against the inner wall of the needle tube.

[0027] By adopting the above solution, the end of the antenna close to the PCB control board is supported by the setting of the support nut, thereby playing a bearing effect on the antenna, ensuring the installation stability of the antenna, and effectively preventing the antenna from touching the needle tube and causing a short circuit during charging.

[0028] Optionally, the limiting nut and the supporting nut are both made of ceramic.

[0029] By adopting the above solution, the limit nut and the support nut are both made of ceramic material. On the one hand, they have better heat resistance; on the other hand, while supporting the antenna, they can also effectively prevent conduction between the antenna and the needle tube, preventing the problem of short circuit during charging.

[0030] Optionally, the needle tube has a spike portion at the head end, and the spike portion gradually narrows in a direction away from the tail end of the needle tube.

[0031] By adopting the above solution, a spike portion is provided, which facilitates the temperature measuring needle to penetrate into the food and measure the temperature inside the food. In actual use, for some thicker food, such as thicker barbecue food, it is necessary to penetrate into the food to detect the internal temperature. The present application improves the convenience of the probe penetrating the food by providing a spike portion.

[0032] In summary, the present application includes at least the following beneficial technical effects:

[0033] 1. The connection between the needle tube and the handle body is highly stable: the handle body is installed on the needle tube with a locking assembly to limit the position, thereby achieving a highly stable installation of the handle body. In traditional technical solutions, since the temperature signal needs to be transmitted to the external mobile smart terminal through the Bluetooth module through the antenna to facilitate temperature monitoring, the handle body of the temperature measuring probe is usually made of a high-temperature resistant ceramic material with poor shielding efficiency; however, it is difficult to process fine threads on the brittle ceramic handle to match the needle tube, and it is easy to break. Therefore, a tight-fitting plug-in method between the handle body and the needle tube is usually adopted. However, in this method, the ceramic material is difficult to precisely control production, and it is easy to produce a large fitting tolerance, resulting in poor fitting stability, and it is easy to cause the handle body and the needle tube to separate from each other during long-term practical use. In the present application, the locking member is indirectly connected to the antenna by clamping the locking member with a limiting nut, and the locking nut is inserted into the handle body and threadedly connected to the antenna; when the locking member is clamped in the locking groove inside the needle tube, the antenna is tightened, so that the locking nut presses the handle body against the tail end of the needle tube, thereby achieving a high-stability installation of the needle tube and the handle body, and having a better anti-drop effect;

[0034] 2. Further improve the connection stability between the handle body and the needle tube: the outer wall of the limit nut fits against the inner wall of the installation chamber, effectively preventing glue from penetrating into the direction of the head end of the needle tube. In actual production conditions, the antenna carrying the limit nut and the locking piece is inserted into the installation chamber so that the locking piece is snapped into the locking groove. Then the tail end of the needle tube needs to inject glue into the installation chamber, and then the handle body is inserted into the installation chamber, and the locking nut is inserted into the handle body and the antenna and tightened, so that the handle body is pressed tightly against the needle tube. By making the outer wall of the limit nut fit against the inner wall of the installation chamber, on the one hand, it can prevent glue from penetrating into the head end of the needle tube and affecting the operation of other parts; on the other hand, when the handle body is inserted into the installation chamber, the glue can flow back toward the tail end of the needle tube, thereby filling the gap between the handle body and the inner wall of the needle tube, thereby further improving the connection stability between the handle body and the needle tube, and improving the sealing performance;

[0035] 3. Convenient charging: A rechargeable power supply module is provided. The negative pole of the power supply component is connected to the negative pole of the external charging device through a needle tube, and the positive pole of the power supply module is connected to the positive pole of the external charging device through a locking nut. Therefore, it can be adapted to a special charging box without the need for additional charging structures and connecting wires. The metal conductivity of the antenna and the needle tube is used to conveniently and quickly charge the temperature measuring probe. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 It is a schematic diagram of the overall external structure of an embodiment of the present application;

[0037] Figure 2 It is an exploded schematic diagram of the overall structure of the embodiment of the present application along the length direction;

[0038] Figure 3 This is a cross-sectional view of the embodiment of the present application to show the internal structure of the temperature measuring probe;

[0039] Figure 4 This is an enlarged view of point A made in the embodiment of the present application to illustrate the structure of the connection between the locking member and the locking groove.

[0040] Description of reference numerals:

[0041] 1. Needle tube; 11. Installation chamber; 12. Locking groove; 13. Spike; 14. Glue injection chamber;

[0042] 2. handle body; 21. gripping portion; 22. plug-in portion; 23. abutting surface; 24. wire passage;

[0043] 3. Antenna; 31. First external thread; 32. Second external thread; 33. Third external thread; 34. First positioning ring; 35. Second positioning ring; 36. Support nut;

[0044] 4. Temperature sensor;

[0045] 5. Locking assembly; 51. Locking member; 511. First sliding portion; 512. Second sliding portion; 513. Guide portion; 52. Locking nut; 53. Limiting nut;

[0046] 6. Shrapnel; 7. PCB control board; 8. Power supply module. DETAILED DESCRIPTION

[0047] The present application is further described in detail below in conjunction with the accompanying drawings.

[0048] The embodiment of the present application discloses a high-stability Bluetooth temperature measurement probe.

[0049] Reference Figure 1 and Figure 2A high-stability Bluetooth temperature measuring probe comprises a needle tube 1, a handle body 2, a temperature measuring sensor 4, an antenna 3 and a locking assembly 5. The needle tube 1 has two ends along the length direction, and an installation chamber 11 is opened inside the needle tube 1. The temperature measuring auxiliary sensor 4 is installed inside the installation chamber 11 at the head end of the needle tube 1, and the handle body 2 is inserted into the installation chamber 11 at the tail end of the needle tube 1 and abuts against the tail end of the needle tube 1; the antenna 3 is installed inside the vacuum chamber and electrically connected to the temperature measuring sensor 4; the locking assembly 5 connects the handle body 2 and the needle tube 1 to lock the handle body 2 and stably install it on the needle tube 1. The locking assembly 5 includes an elastic locking piece 51, a locking nut 52 and two limiting nuts 53. The two limiting nuts 53 are threadedly connected to the middle part of the antenna 3 and limit the locking piece 51. A locking groove 12 is provided on the inner wall of the needle tube 1 corresponding to the locking piece 51. The locking nut 52 is threadedly connected to the antenna 3, and the locking nut 52 abuts against the end of the handle body 2 away from the needle tube 1. When the locking piece 51 is clamped in the locking groove 12, the locking nut 52 presses the handle body 2 tightly and limits it to the tail end of the needle tube 1, so that the handle body 2 is clamped between the locking nut 52 and the needle tube 1.

[0050] Reference Figure 1 and Figure 2 The needle tube 1 is generally in a hollow cylindrical structure, the opening of the mounting chamber 11 is located at the rear end of the needle tube 1, and the front end of the needle tube 1 has a spike portion 13 for piercing the food to be measured, and the spike portion 13 gradually narrows in the direction away from the rear end of the needle tube 1.

[0051] Reference Figure 3 and Figure 4 The handle body 2 includes a gripping portion 21 and a plug-in portion 22 for inserting into the installation chamber 11, and a wire-passing channel 24 is provided in the handle body 2 along the length direction of the needle tube 1; the plug-in portion 22 is generally cylindrical, and the cross-sectional diameter of the plug-in portion 22 is adapted to the diameter of the installation chamber 11, so that the plug-in portion 22 can be inserted into the needle tube 1 from the opening of the installation chamber 11 at the tail end of the needle tube 1. The connection between the gripping portion 21 and the plug-in portion 22 forms a stepped structure, and the gripping portion 21 has a contact surface 23 connected to the plug-in portion 22. When the plug-in portion 22 is fully inserted into the installation chamber 11, the contact surface 23 contacts the tail end of the needle tube 1, and the outer diameter of the contact surface 23 is equal to the outer diameter of the tail end of the needle tube 1, so that the connection between the outer wall of the handle body 2 and the outer wall of the needle tube 1 is aligned.

[0052] Reference Figure 3 and Figure 4The antenna 3 is made of metal, used for transmitting signals and having a conductive function; a first external thread 31 is provided in the middle of the antenna 3, and the internal threads of the two limiting nuts 53 cooperate with the first external thread 31, and the locking member 51 is limited between the two limiting nuts 53, so that the locking member 51 can slide in the installation chamber 11 with the antenna 3 during the installation of the antenna 3 to the installation chamber 11. It is worth mentioning that the limiting nut 53 does not clamp the locking member 51 but only limits the locking member 51 along the length direction of the antenna 3, and the locking member 51 can produce elastic deformation and move relative to the limiting nut 53 in the radial direction of the antenna 3. A first positioning ring 34 is provided on the antenna 3 on one side of the first external thread 31 close to the head end of the needle tube 1. The first positioning ring 34 is convexly arranged on the antenna 3, and the outer diameter of the first positioning ring 34 is larger than the inner diameter of the limiting nut 53. The limiting nut 53 close to the head end of the needle tube 1 abuts against the first positioning ring 34 to position the position of the limiting nut 53 and the locking member 51.

[0053] Reference Figure 3 and Figure 4 The locking groove 12 is opened on the inner wall of the needle tube 1 around the axis of the needle tube 1. The locking groove 12 is an annular structure. The locking member 51 is a C-shaped structure. The locking member 51 is around the first external thread 31 of the antenna 3 without contacting the antenna 3. The locking member 51 is a copper elastic clamp. When the locking member 51 slides in the installation chamber 11 along the length direction of the needle tube 1, the locking member 51 is squeezed by the inner wall of the needle tube 1 and elastically deformed. Specifically, the locking member 51 has a first sliding portion 511 close to the head end of the needle tube 1, a second sliding portion 512 close to the tail end of the needle tube 1, and a guide portion 513 connecting the first sliding portion 511 and the second sliding portion 512. The guide portion 513 gradually narrows from the second sliding portion 512 to the first sliding portion 511. In the embodiment of the present application, the outer diameter of the first sliding portion 511 of the locking member 51 is smaller than the inner diameter of the installation chamber 11, and the outer diameter of the second sliding portion 512 is larger than the inner diameter of the installation chamber 11, so that when the antenna 3 is inserted from the opening of the installation chamber 11 to the head end of the needle tube 1, the first sliding portion 511 can be inserted into the installation chamber 11, and the guide portion 513 plays a guiding role, so that the locking member 51 is gradually compressed and slides into the installation chamber 11; after the second sliding portion 512 of the locking member 51 slides into the locking groove 12, the locking member 51 expands and is engaged in the locking groove 12, thereby achieving the limitation of the antenna 3. It is worth mentioning that in the embodiment of the present application, when the locking member 51 is engaged in the locking groove 12, the inner diameters of the first sliding portion 511 and the second sliding portion 512 are both larger than the outer diameter of the first external thread 31, so that the locking member 51 is pressed against the inner wall of the needle tube 1 after expansion and does not contact the antenna 3.

[0054] Reference Figure 3 and Figure 4, the locking nut 52 is inserted into the wire passing channel 24 by the holding portion 21 of the handle body 2, and the locking nut 52 is provided with an internal thread. Specifically, the locking nut 52 abuts against the end face of the holding portion 21 away from the needle tube 1; one end of the antenna 3 is provided with a second external thread 32 for cooperating with the locking nut 52, the antenna 3 penetrates into the wire passing channel 24 of the handle body 2 and is threadedly connected with the locking nut 52; therefore, when the locking piece 51 is clamped in the locking groove 12, one end of the handle body 2 abuts against the needle tube 1 through the abutting surface 23, and the other end abuts against the locking nut 52. At this time, the antenna 3 between the locking piece 51 and the locking nut 52 is tightened to provide a pulling force toward the tail end of the needle tube 1 to the locking nut 52, thereby locking the handle body 2 between the locking nut 52 and the needle tube 1.

[0055] Reference Figure 3 and Figure 4 , the outer wall of the limit nut 53 is attached to the inner wall of the installation chamber 11, so that a glue injection chamber 14 is formed between the limit nut 53 near the tail end of the needle tube 1 and the tail end of the needle tube 1; specifically, after the plug-in portion 22 of the handle body 2 is inserted from the opening of the installation chamber 11, the abutting surface 23 of the handle body 2 closes the opening of the installation chamber 11; a glue injection chamber 14 is formed between the limit nut 53 near the tail end of the needle tube 1, the inner wall of the installation chamber 11 and the abutting surface 23 of the handle body 2, and the plug-in portion 22 is plugged into the glue injection chamber 14. In the embodiment of the present application, before the handle body 2 is inserted, glue will be injected from the opening of the installation chamber 11 to the limit nut 53. After the plug-in portion 22 of the handle body 2 is inserted, the glue flows back to the tail end of the needle tube 1 to fill the gap between the plug-in portion 22 and the inner wall of the needle tube 1, so that the handle body 2 and the needle tube 1 are further glued and connected, and have better sealing performance.

[0056] Reference Figure 3 and Figure 4 , the temperature measuring needle also includes a spring piece 6 and a PCB control board 7, and the PCB control board 7 is connected to one end of the antenna 3 near the head end of the needle tube 1; the number of spring pieces 6 is two, and the two spring pieces 6 are symmetrically arranged on the two board surfaces of the PCB control board 7, and the spring pieces 6 are compressed and simultaneously abut the PCB control board 7 and the inner wall of the needle tube 1, thereby supporting the PCB control board 7. In the embodiment of the present application, the PCB control boards 7 are fixedly connected together by spot welding after being plugged in, which is not repeated here. The PCB circuit board electrically connects the antenna 3 with the temperature sensor 4. In the embodiment of the present application, the temperature sensor 4 is located in the spike portion 13 of the needle tube 1, and the temperature measuring head of the temperature sensor 4 contacts the inner wall of the spike portion 13 to facilitate temperature sensing. The PCB control board 7 can receive the temperature measurement signal generated by the temperature sensor 4 and convert it into a temperature signal and transmit it to the mobile intelligent terminal via the antenna 3. Specifically, in the embodiment of the present application, the handle 2 is made of ceramic material, the PCB control board 7 has a Bluetooth module, and the antenna 3 is coupled with the Bluetooth module so that the antenna 3 can send the temperature signal to the outside world.

[0057] Reference Figure 3 and Figure 4 , the PCB control board 7 is also electrically connected to a chargeable and dischargeable power supply module 8, which is connected to the PCB control board 7 and the temperature sensor 4 at the same time to supply power to the PCB control board 7 and the temperature sensor 4. The positive pole of the power supply module 8 is electrically connected to the antenna 3, and the negative pole of the power supply module 8 is electrically connected to the needle tube 1 through the shrapnel 6. The needle tube 1, the locking nut 52 and the shrapnel 6 are all made of conductive metal materials. In the actual working conditions of the embodiment of the present application, the temperature measuring needle can cooperate with the special charging box, so that the locking nut 52 is connected to the positive pole of the external power supply, and the needle tube 1 is connected to the negative pole of the external power supply; thereby, the positive pole of the power supply module 8 is connected to the positive pole of the charging box, and the negative pole of the power supply module 8 is connected to the negative pole of the charging box, thereby charging the power supply module 8.

[0058] Reference Figure 3 and Figure 4 In order to prevent the antenna 3 from contacting the inner wall of the needle tube 1, a third external thread 33 is provided on the end of the needle tube 1 close to the PCB control board 7. A support nut 36 is threadedly connected to the third external thread 33. The outer periphery of the support nut 36 fits the inner wall of the needle tube 1, thereby supporting the antenna 3 to prevent the antenna 3 from contacting the needle tube 1 and causing a short circuit during charging. A second positioning ring 35 is provided on the antenna 3 on the side of the third external thread 33 close to the tail end of the needle tube 1. The second positioning ring 35 is convexly arranged on the antenna 3, and the outer diameter of the second positioning ring 35 is larger than the inner diameter of the support nut 36. The support nut 36 contacts the second positioning ring 35 to locate the position of the support nut 36. It is worth mentioning that the limit nut 53 and the support nut are both made of non-conductive ceramics.

[0059] The implementation principle of a high-stability Bluetooth temperature measuring probe in the embodiment of the present application is as follows: the antenna 3 is plugged and installed inside the needle tube 1, and the middle part of the antenna 3 is threadedly connected to two limit nuts 53 to clamp the locking member 51 and install it in the middle part of the antenna 3. A locking nut 52 is plugged into the end of the handle body 2 away from the needle tube 1, and the antenna 3 penetrates the handle body 2 and is threadedly connected with the locking nut 52. The locking member 51 can be compressed and deformed to slide inside the needle tube 1. When the locking member 51 is engaged with the locking groove 12 inside the needle tube 1, the antenna 3 is tightened and the locking nut 52 is tightened, so that the handle body 2 is clamped between the locking nut 52 and the needle tube 1, and a stable connection between the needle tube 1 and the handle body 2 is achieved.

[0060] The embodiments of this specific implementation are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. The same components are represented by the same figure marks. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A high stability Bluetooth temperature measurement probe, It is characterized in that include: A needle tube (1) having a hollow mounting chamber (11), wherein the needle tube (1) has two ends in the length direction; The handle (2) is inserted into the mounting chamber (11) at the rear end of the needle tube (1) and abuts against the rear end of the needle tube (1); A temperature measuring sensor (4), the temperature measuring sensor (4) being located in a mounting chamber (11) at the head end of the needle tube (1) and being used for contacting an object to be measured and measuring the temperature; An antenna (3) is installed inside the needle tube (1) and is electrically connected to the temperature sensor (4) for transmitting a temperature signal; A locking assembly (5) is connected to the handle body (2) and the needle tube (1) at the same time, and is used to lock the handle body (2) and the needle tube (1) together; The locking assembly (5) comprises an elastic locking member (51), a locking nut (52) and two limiting nuts (53); the two limiting nuts (53) are threadedly connected to the antenna (3); the locking member (51) is limited between the two limiting nuts (53); a locking groove (12) for clamping the locking member (51) is provided on the inner wall of the needle tube (1); the locking nut (52) is threadedly connected to the antenna (3); the locking nut (52) cooperates with the limiting nut (53) to press the handle body (2) against the tail end of the needle tube (1); The locking groove (12) is formed around the axis of the needle tube (1), and the locking member (51) is of a C-shaped structure. When the locking member (51) slides in the installation chamber (11) along the length direction of the needle tube (1), the locking member (51) is squeezed by the inner wall of the needle tube (1) and elastically deformed; The locking member (51) comprises a first sliding portion (511) close to the head end of the needle tube (1), a second sliding portion (512) close to the tail end of the needle tube (1), and a guide portion (513) connecting the first sliding portion (511) and the second sliding portion (512), wherein the guide portion (513) gradually narrows from the second sliding portion (512) toward the first sliding portion (511); under normal conditions, the outer diameter of the first guiding portion (513) is smaller than the inner diameter of the installation chamber (11), and the outer diameter of the second sliding portion (512) is larger than the inner diameter of the installation chamber (11); The handle body (2) comprises a gripping portion (21) and an inserting portion (22) for inserting into the installation chamber (11); the locking nut (52) is inserted into the wire passage (24) through the gripping portion (21) of the handle body (2); an internal thread is formed on the locking nut (52); and the locking nut (52) abuts against the end surface of the gripping portion (21) away from the needle tube (1).

2. A high stability Bluetooth temperature measuring probe according to claim 1, It is characterized in that The diameter of the plug-in portion (22) is adapted to the diameter of the installation chamber (11); the gripping portion (21) has a contact surface (23) connected to the plug-in portion (22); the outer diameter of the contact surface (23) is equal to the outer diameter of the rear end of the needle tube (1); when the plug-in portion (22) is fully inserted into the installation chamber (11), the contact surface (23) contacts the rear end of the needle tube (1).

3. A high stability Bluetooth temperature measuring probe according to claim 2, It is characterized in that The outer wall of the limiting nut (53) is fitted to the inner wall of the installation chamber (11), and a glue injection chamber (14) for injecting glue for sealing is formed between the limiting nut (53) near the rear end of the needle tube (1) and the rear end of the needle tube (1), and the plug-in portion (22) is plugged into the glue injection chamber (14).

4. A high stability Bluetooth temperature measuring probe according to claim 1, It is characterized in that It also comprises a spring sheet (6) and a PCB control board (7), wherein the PCB control board (7) electrically connects the antenna (3) and the temperature measuring sensor (4), and there are two spring sheets (6), which are symmetrically arranged on two surfaces of the PCB control board (7), and the spring sheets (6) are compressed and abut against the PCB control board (7) and the inner wall of the needle tube (1) at the same time.

5. A high stability Bluetooth temperature measuring probe according to claim 4, It is characterized in that The PCB control board (7) is electrically connected to a chargeable and dischargeable power supply module (8); the positive electrode of the power supply module (8) is electrically connected to the antenna (3); the negative electrode of the power supply module (8) is electrically connected to the needle tube (1) via a spring sheet (6); the needle tube (1), the spring sheet (6) and the locking nut (52) are all made of metal; the locking nut (52) can conduct the charging module to the positive electrode of an external power supply; and the needle tube (1) can conduct the power supply module (8) to the negative electrode of an external power supply.

6. A high stability Bluetooth temperature measuring probe according to claim 5, It is characterized in that A support nut (36) is threadedly connected to one end of the antenna (3) close to the PCB control board (7), and the outer periphery of the support nut (36) is fitted to the inner wall of the needle tube (1).

7. A high stability Bluetooth temperature measuring probe according to claim 6, It is characterized in that The limiting nut (53) and the supporting nut (36) are both made of ceramics.

8. A high stability Bluetooth temperature measuring probe according to claim 1, It is characterized in that The needle tube (1) has a spike portion (13) located at the head end, and the spike portion (13) gradually narrows in a direction away from the tail end of the needle tube (1).

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