A test well device and test chamber

Abstract

The application provides a test hole device and a test box. The test hole device is applied to the test box and comprises an internally-threaded connecting pipe, an externally-threaded connecting pipe, and first and second soft plugs. One end of the internally-threaded connecting pipe is provided with an internal thread, and the other end is provided with a flared structure. The flared structure is provided with a first set of symmetrically-distributed test line accommodation grooves. One end of the externally-threaded connecting pipe is provided with an external thread matched with the internal thread of the internally-threaded connecting pipe, and the other end is provided with a flared structure. The flared structure is provided with a second set of symmetrically-distributed test line accommodation grooves. The first and second soft plugs are respectively formed into clamping structures with the flared structures of the internally-threaded connecting pipe and the externally-threaded connecting pipe. The device and the test box provided by the application can better enable the test line to enter the box body through the hole, effectively seal the hole, prevent air leakage, and effectively protect the stability and effectiveness of test data.

Description

Technical Field

[0001] This application relates to the technical field of testing equipment, and more particularly to a test hole device and a test chamber. Background Technology

[0002] When conducting performance tests such as temperature tests, the test leads do not need to pass through the door gap to reach the inside of the chamber. They can directly reach the required position inside the chamber through this test hole, fix the sensor, arrange the length of the test leads inside the chamber, place the test leads at the notch at the edge of the test hole, and at the same time plug the test hole with the soft plug to prevent air leakage. Finally, close the test chamber door and you can directly turn on the power to conduct the test.

[0003] Considering that during testing, the test leads reach the interior of the chamber through the door gap, the door seal may not be tight after closing, leading to air leakage. This results in significant discrepancies or fluctuations in performance parameters such as internal temperature compared to the sealed data, thus affecting the overall performance results. Therefore, there is an urgent need for a test hole device and a test chamber. Utility Model Content

[0004] The purpose of this application is to provide a test hole device and a test chamber to solve the above-mentioned technical problems.

[0005] The objective of this application is achieved through the following technical solution: This application provides a test hole device, applied in a test chamber, comprising: The internally threaded connecting pipe has an internal thread at one end and a flared structure at the other end, with a symmetrically distributed first set of test line clearance grooves in the flared structure. The external threaded connecting pipe has an external thread at one end that matches the internal thread, and a flared structure at the other end, which has a symmetrically distributed second set of test line clearance grooves. The first soft plug and the second soft plug form a locking structure with the flared structure of the internal threaded connecting pipe and the external threaded connecting pipe, respectively; The internally threaded connecting pipe and the externally threaded connecting pipe are connected by threads to form an adjustable length pipe, which is used to install in the reserved hole of the test chamber, and the flared structure at both ends respectively fits the contact surface of the test chamber.

[0006] In some optional embodiments, the number of clearance grooves in the first set of test line clearance grooves and the second set of test line clearance grooves is the same, which is 4, 6 or 8, and they are evenly and symmetrically distributed on the edge of the flange opening inner hole.

[0007] In some alternative embodiments, the internally threaded connecting pipe and the externally threaded connecting pipe are hollow pipes molded from ABS.

[0008] In some optional embodiments, the flared structure of the internally threaded connecting pipe and the externally threaded connecting pipe are both flared structures with flanges. The flange inner hole edge of the internally threaded connecting pipe is provided with a first set of test line clearance grooves symmetrically distributed, and the flange inner hole edge of the externally threaded connecting pipe is provided with a second set of test line clearance grooves symmetrically distributed.

[0009] In some optional embodiments, the inner diameter of the flange of the internally threaded connecting pipe is the same as the inner diameter of the fitting hole of the internally threaded connecting pipe, and the first set of test line clearance grooves are provided at the edge of the inner diameter of the flange. The inner diameter of the flange opening of the external threaded connecting pipe is the same as the inner diameter of the fitting hole of the external threaded connecting pipe, and the second set of test line clearance grooves are set at the edge of the inner hole of the flange opening.

[0010] In some alternative embodiments, the first soft plug and the second soft plug respectively form an engaging structure with the flange inner hole of the internally threaded connecting pipe and the externally threaded connecting pipe.

[0011] In some optional embodiments, the first soft plug and the second soft plug are rubber soft plugs, each rubber soft plug including a plug post and an anti-detachment boss disposed at the end of the plug post away from the corresponding flange opening, wherein the projection of the anti-detachment boss on the end face of its corresponding flange opening covers the first set of test line clearance grooves or the second set of test line clearance grooves.

[0012] In some optional embodiments, the internal thread of the internal threaded connecting pipe and the external thread of the external threaded connecting pipe are matched single-start or multi-start thread structures.

[0013] In some optional embodiments, the test hole device is disposed in a reserved hole on the side of the test chamber.

[0014] In some alternative embodiments, the test chamber is a refrigerator.

[0015] This application also provides a test chamber, including the test hole device described in any of the above claims, wherein the test hole device is disposed in a reserved hole on the side of the test chamber.

[0016] In some alternative embodiments, the test chamber is a refrigerator.

[0017] Combining the above technical solutions and the technical problems solved, the technical solution protected in this application features a soft plug that tightly adheres to the inner wall of the flange's inner hole and will not easily come off. The test lead clearance groove provides clearance space for the test lead, allowing the soft plug to completely cover the test lead after installation, effectively preventing gas leakage. Through this structural design, the test hole device maintains good sealing during testing, ensuring the stability of the internal environment of the test chamber. The threaded connection design of the internal and external threaded connecting pipes allows the length of the entire device to be adjusted as needed. The choice of single-start or multi-start threads can be adjusted according to actual requirements to achieve different connection speeds and accuracies. The flange design of the internal and external threaded connecting pipes increases the contact area between the device and the test chamber, improving the installation stability of the device. The tight fit of the threaded connection ensures that the device will not loosen during use, enhancing structural stability. The number and distribution design of the test lead clearance grooves provide multiple placement positions for the test lead, accommodating different numbers and diameters of test leads. During use, the test leads do not enter the chamber through the door gaps. Instead, they can enter the chamber through this hole more effectively, and the hole can be sealed to prevent ventilation and air leakage. This further protects the stability and validity of the test data. Attached Figure Description

[0018] The present application will be further described below with reference to the accompanying drawings and embodiments.

[0019] Figure 1 This is a schematic diagram of a test hole device provided in an embodiment of this application.

[0020] Figure 2 yes Figure 1 A schematic diagram of the cross-sectional structure of the device along the AA direction.

[0021] Figure 3 This is an exploded structural diagram of a test hole device provided in an embodiment of this application.

[0022] Illustration: 1. Rubber soft plug; 2. Internally threaded connecting pipe; 3. Externally threaded connecting pipe; 4. Test line clearance groove. Detailed Implementation

[0023] The present application will now be further described in conjunction with the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0024] This application provides a test hole device for use in a test chamber, comprising: The internally threaded connecting pipe has an internal thread at one end and a flared structure at the other end, with a symmetrically distributed first set of test line clearance grooves in the flared structure. The external threaded connecting pipe has an external thread at one end that matches the internal thread, and a flared structure at the other end, which has a symmetrically distributed second set of test line clearance grooves. The first soft plug and the second soft plug form a locking structure with the flared structure of the internal threaded connecting pipe and the external threaded connecting pipe, respectively; The internally threaded connecting pipe and the externally threaded connecting pipe are connected by threads to form an adjustable length pipe, which is used to install in the reserved hole of the test chamber, and the flared structure at both ends respectively fits the contact surface of the test chamber.

[0025] The technical solution provided in this embodiment uses an internally threaded connecting pipe and an externally threaded connecting pipe to form an adjustable-length pipe, which is installed in a pre-drilled hole in the test chamber. The flared structures of the internally and externally threaded connecting pipes respectively fit the inner and outer contact surfaces of the test chamber, ensuring a tight fit between the device and the chamber. A first soft plug and a second soft plug respectively form a locking structure with the flared structures of the internally and externally threaded connecting pipes, and are used to seal the test hole. During testing, the test wire passes through the flared structures of the internally and externally threaded connecting pipes and is placed in symmetrically distributed test wire clearance grooves. The design of the test wire clearance grooves avoids the test wire, allowing the soft plugs to fit the test hole, thereby achieving a seal.

[0026] Its beneficial effects include: the test lead enters the test chamber through the test hole, rather than through the door seam, avoiding sealing problems caused by air leakage from the door seal. The flared structure and soft plug design ensure good sealing performance of the test hole in both testing and non-testing states. Due to the excellent sealing of the test hole, the internal performance parameters of the test chamber, such as temperature, will not fluctuate significantly due to air leakage, thus ensuring the stability and accuracy of the test data. The internal and external threaded connecting pipes are connected by threads, allowing for adjustment of the pipe length to accommodate the pre-drilled hole sizes of different test chambers. The installation process is simple, completed by the threaded connection and the engagement of the soft plug.

[0027] In some embodiments, the internally threaded connecting pipe and the externally threaded connecting pipe are both hollow tubular components injection molded from ABS. The ABS injection-molded connecting pipe has good mechanical strength and chemical resistance, and can withstand temperature changes and mechanical stresses that may occur during testing in the test chamber.

[0028] In some embodiments, the flared structures of the internally threaded connecting pipe and the externally threaded connecting pipe are flared structures with flanges. The flange inner hole edge of the internally threaded connecting pipe is provided with a first set of test line clearance grooves symmetrically distributed, and the flange inner hole edge of the externally threaded connecting pipe is provided with a second set of test line clearance grooves symmetrically distributed.

[0029] The flared structure of both the internally and externally threaded connecting pipes is designed with flanges. The flared surface of the flange fits against the inner and outer contact surfaces of the test chamber, ensuring a tight fit between the device and the test chamber after installation. Symmetrically distributed test lead clearance grooves (first and second groups) are provided along the edge of the flange's inner bore. These grooves allow the test leads to pass through. When a test lead passes through a test hole, it can be placed within the clearance groove, ensuring the soft plug fits tightly against the inner wall of the test hole for a good seal.

[0030] The symmetrically distributed test line clearance slots provide multiple placement positions for the test lines. In specific applications, the dimensions of each clearance slot can be the same or different to accommodate test lines of different numbers and diameters, thus improving the flexibility of test line placement.

[0031] In some embodiments, the inner diameter of the flange opening of the internally threaded connecting pipe is the same as the inner diameter of the fitting hole of the internally threaded connecting pipe, and the first set of test line clearance grooves are provided at the edge of the inner diameter of the flange opening. The inner diameter of the flange opening of the external threaded connecting pipe is the same as the inner diameter of the fitting hole of the external threaded connecting pipe, and the second set of test line clearance grooves are set at the edge of the inner hole of the flange opening.

[0032] When the test lead passes through the flange, it can be placed in the clearance groove to avoid direct contact between the test lead and the soft plug, thus ensuring that the soft plug can fit tightly against the inner wall of the flange and achieve a good sealing effect. The inner diameter of the flange and the inner diameter of the pipe fitting are the same, avoiding stress concentration problems caused by differences in inner diameter, improving the mechanical strength and reliability of the device, and also making it easier to insert the test lead and install the soft plug.

[0033] In some embodiments, the first soft plug and the second soft plug form an engaging structure with the flange inner hole of the internally threaded connecting pipe and the externally threaded connecting pipe, respectively.

[0034] The shape and size of the first and second soft plugs are matched to the inner bore of the flange opening of the internally threaded connecting pipe and the externally threaded connecting pipe. The outer wall of the soft plug adapts to the inner bore of the flange opening, allowing the soft plug to be firmly locked in the flange opening. The locking structure design ensures that the soft plug will not loosen due to vibration or airflow after installation, enhancing the reliability of the seal.

[0035] In some embodiments, the first soft plug and the second soft plug are rubber soft plugs, each rubber soft plug including a plug post and an anti-detachment boss disposed at the end of the plug post away from the corresponding flange opening, wherein the projection of the anti-detachment boss on the end face of its corresponding flange opening covers the first set of test line clearance grooves or the second set of test line clearance grooves.

[0036] The rubber plug consists of a plunger and an anti-detachment boss. The plunger is inserted into the flange bore to achieve a seal. The anti-detachment boss is located at the end of the plunger furthest from the flange bore, and its size is larger than the diameter of the flange bore. Its projection covers the test line clearance groove on the flange end face, ensuring that the plug completely covers the test line clearance groove area after installation. This not only prevents the plug from falling out but also ensures a better seal in the test line clearance groove area. During testing, the test line passes through the flange bore and is placed in the test line clearance groove. Then, the rubber plug is inserted into the flange bore. The elastic deformation of the plunger causes the plug to fit tightly against the flange bore, achieving a seal. The anti-detachment boss further enhances the sealing effect and prevents the plug from falling out by covering the test line clearance groove area.

[0037] The plug can be cylindrical, conical, or stepped. Plugs with non-uniform diameters can accommodate tests of different diameters.

[0038] In some embodiments, the number of clearance grooves in the first set of test line clearance grooves and the second set of test line clearance grooves is the same, which is 4, 6 or 8, and they are evenly and symmetrically distributed on the edge of the inner hole of the flange opening.

[0039] The above design ensures that the test leads are subjected to uniform force when passing through the test holes when the test slots are all placed, thus avoiding poor sealing due to uneven local pressure.

[0040] In some embodiments, the internal thread of the internal threaded connecting pipe and the external thread of the external threaded connecting pipe are matched single-start or multi-start thread structures.

[0041] Single-start threads have a larger thread pitch, advancing only one thread pitch per revolution. This design is suitable for scenarios requiring high-precision adjustment; the connection process is slower but offers high stability. Multi-start threads have a smaller thread pitch, advancing multiple thread pitches per revolution. This design is suitable for scenarios requiring quick connection and disassembly; the connection process is faster but accuracy is relatively lower. The appropriate specification can be selected based on the specific requirements of the application.

[0042] This application also provides a test chamber, including the test hole device described in any of the above claims, wherein the test hole device is disposed in a reserved hole on the side of the test chamber.

[0043] In some embodiments, the test chamber is a refrigerator.

[0044] See Figures 1 to 3As an example, a test hole device is provided. The entire assembly is connected into a pipe, the length of which can be adjusted as needed by rotating the internally threaded connecting pipe 2 or the externally threaded connecting pipe 3. When installing on a test chamber, the internally threaded connecting pipe 2 or the externally threaded connecting pipe 3 is rotated clockwise to tighten until secure and without looseness. Then, the two ends of the hole are sealed with rubber soft plugs 1 (the first and second soft plugs in this application) to complete the installation.

[0045] The function of each part is explained below: Rubber soft stopper 1, made of soft rubber, is easy to install and remove. Its stopper post has an anti-dislodgement protrusion, which mainly serves to seal the test hole. The internally threaded connecting pipe 2 is an ABS injection-molded hollow pipe fitting with internal threads for easy fastening and length adjustment. The other end is an enlarged flange with an inner hole the same size as the pipe fitting hole. The edge of the inner hole has four symmetrical test line clearance grooves 4 (the first set of test line clearance grooves) to facilitate the avoidance of test lines and allow for a tighter seal when the rubber soft plug 1 is connected. The external threaded connecting pipe 3 is an ABS injection-molded hollow pipe fitting. The outer diameter of the fitting is the same as the inner diameter of the internal threaded connecting pipe 2, and the outer diameter of the fitting has threads. These threads are consistent with the threads of the internal threaded connecting pipe 2, providing a tight and flexible fit, making it easier to fasten the connection and adjust the length. The other end is an enlarged flange opening with an inner hole that is the same size as the fitting hole. The edge of the inner hole has four symmetrical test line clearance grooves 4 (the second set of test line clearance grooves) to facilitate the avoidance of test lines and make the rubber soft plug 1 more tightly sealed when connected. The test lead clearance groove 4 is mainly to avoid the test lead, so that the rubber soft stopper 1 can be connected more tightly.

[0046] To facilitate understanding, the installation steps and methods are provided: 1. Hold the flange of the internally threaded connecting pipe 2 and insert it from the outside to the inside through the pre-drilled hole on the side of the test chamber. At the same time, hold the flange of the externally threaded connecting pipe 3 and insert it from the inside to the outside through the pre-drilled hole on the side of the test chamber. 2. Connect the two threaded ports together, and rotate the external threaded connecting pipe 3 clockwise, or simultaneously rotate the internal threaded connecting pipe 2 clockwise, until the two flanges are tightly pressed against the contact surface of the housing, then tighten by hand until it can no longer be turned. 3. During the test, simply thread the test wire through the test hole device into the box, fix the sensor head inside the box, adjust the length of the wire, place the test wire in the test wire clearance groove 4 at the notch on the edge of the test hole device, and plug both ends of the test hole with rubber soft plugs 1 to prevent air leakage. Finally, close the door of the test chamber and you can directly turn on the power to conduct the test. 4. During normal use and non-experimental periods, there are no test leads, and no need to place them. You can directly plug both ends of the test hole with rubber plug 1 to prevent air leakage.

[0047] The technical solution provided in this application allows the rubber soft plug 1 to fit tightly against the inner wall of the flange's inner hole and prevent it from easily coming off. The test line clearance groove 4 provides clearance space for the test lines, ensuring that the rubber soft plug 1 completely covers the test lines after installation, effectively preventing gas leakage. This structural design ensures the test hole device maintains good sealing during testing, guaranteeing the stability of the internal environment of the test chamber. The threaded connection design of the internal threaded connecting pipe 2 and the external threaded connecting pipe 3 allows the length of the entire device to be adjusted as needed. The choice between single-start or multi-start threads can be adjusted according to actual requirements to achieve different connection speeds and accuracies. The flange design of the internal threaded connecting pipe 2 and the external threaded connecting pipe 3 increases the contact area between the device and the test chamber, improving the installation stability of the device. The tight fit of the threaded connection ensures that the device will not loosen during use, enhancing structural stability. The number and distribution design of the test line clearance grooves 4 provide multiple placement positions for the test lines, accommodating different numbers and diameters of test lines. During use, the test leads do not enter the chamber through the door gaps. Instead, they can enter the chamber through this hole, which effectively seals the hole and prevents air leakage, thus protecting the stability and validity of the test data.

[0048] It should be noted that in the embodiments of this application, "at least one" refers to one or more, and "more than one" refers to two or more. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, or B alone, where A and B can be singular or plural. The character " / " generally indicates that the preceding and following related objects are in an "or" relationship. "At least one of the following" or similar expressions refer to any combination of these items, including any combination of single or plural items. For example, at least one of a, b, or c can represent: a, b, c, a and b, a and c, b and c, or a and b and c, where a, b, and c can be single or multiple. It is worth noting that "at least one" can also be interpreted as "one or more".

[0049] The terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are configured to distinguish similar objects and are not necessarily configured to describe a particular order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0050] This application describes the invention from the perspectives of purpose, performance, progress, and novelty, and it meets the functional enhancement and use requirements emphasized by the Patent Law. The above description and drawings are merely preferred embodiments of this application and are not intended to limit this application. Therefore, all structures, devices, features, etc., that are similar to or identical to those of this application, i.e., all equivalent substitutions or modifications made in accordance with the scope of this patent application, shall fall within the scope of protection of this patent application.

Claims

1. A test hole device, characterized in that, Applied to test chambers, including: The internally threaded connecting pipe has an internal thread at one end and a flared structure at the other end, with symmetrically distributed first set of test line clearance grooves in the flared structure. The external threaded connecting pipe has an external thread at one end that matches the internal thread, and a flared structure at the other end, which has a symmetrically distributed second set of test line clearance grooves. The first soft plug and the second soft plug form a locking structure with the flared structure of the internal threaded connecting pipe and the external threaded connecting pipe, respectively; The internally threaded connecting pipe and the externally threaded connecting pipe are connected by threads to form an adjustable length pipe, which is used to install in the reserved hole of the test chamber, and the flared structure at both ends respectively fits the contact surface of the test chamber.

2. The test hole device according to claim 1, characterized in that, The internally threaded connecting pipe and the externally threaded connecting pipe are both hollow pipes molded from ABS.

3. The test hole device according to claim 2, characterized in that, The flared structures of the internally threaded connecting pipe and the externally threaded connecting pipe are both flared structures with flange openings. The flange inner hole edge of the internally threaded connecting pipe is provided with a first set of test line clearance grooves symmetrically distributed, and the flange inner hole edge of the externally threaded connecting pipe is provided with a second set of test line clearance grooves symmetrically distributed.

4. The test hole device according to claim 3, characterized in that, The inner diameter of the flange opening of the internally threaded connecting pipe is the same as the inner diameter of the fitting hole of the internally threaded connecting pipe, and the first set of test line clearance grooves are set at the edge of the inner diameter of the flange opening. The inner diameter of the flange opening of the external threaded connecting pipe is the same as the inner diameter of the fitting hole of the external threaded connecting pipe, and the second set of test line clearance grooves are set at the edge of the inner hole of the flange opening.

5. The test hole device according to claim 4, characterized in that, The first soft plug and the second soft plug respectively form a locking structure with the flange inner hole of the internal threaded connecting pipe and the external threaded connecting pipe.

6. The test hole device according to claim 5, characterized in that, The first soft plug and the second soft plug are rubber soft plugs. The rubber soft plug includes a plug post and an anti-detachment boss disposed at the end of the plug post away from the corresponding flange opening. The projection of the anti-detachment boss on the end face of its corresponding flange opening covers the first set of test line clearance grooves or the second set of test line clearance grooves.

7. The test hole device according to claim 3, characterized in that, The first set of test line clearance grooves and the second set of test line clearance grooves have the same number of clearance grooves, which are 4, 6 or 8, and are evenly and symmetrically distributed on the edge of the inner hole of the flange.

8. The test hole device according to claim 1, characterized in that, The internal thread of the internal threaded connecting pipe and the external thread of the external threaded connecting pipe are a single-start or multi-start thread structure that are matched.

9. A test chamber, characterized in that, Includes the test hole device according to any one of claims 1-8, wherein the test hole device is disposed in a reserved hole on the side of the test chamber.

10. The test chamber according to claim 9, characterized in that, The test chamber is a refrigerator.

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