Nut sealing cap early warning telescopic pad structure

Abstract

The utility model discloses an early-warning telescopic pad structure for a nut sealing cap, and aims to provide the early-warning telescopic pad structure for the nut sealing cap, which is good in sealing effect and good in early-warning use effect. Comprising a sealing cushion block, the sealing cushion block is installed in a nut shell connected with a connecting pipe of an air conditioner evaporator, a sliding groove is formed in the outer top of the sealing cushion block, a compression cavity is formed in the inner top of the sealing cushion block, and the compression cavity communicates with the sliding groove; the early warning sliding column comprises an early warning end and a connecting end, the early warning end of the early warning sliding column is inserted into the early warning observation cavity of the nut shell, and the connecting end of the early warning sliding column is inserted into the sliding groove and connected with the compression cavity in a matched mode. The utility model has the beneficial effects that the sealing effect is good, and the influence of the sealing performance of the sealing cushion block and the nut shell on early warning observation is avoided; and the early warning sliding column slides stably and reliably, so that the accuracy of the obtained observation signal is ensured, and the good early warning use effect is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field related to air conditioners, in particular to a nut sealing cap early warning telescopic pad structure. Background Art

[0002] The air conditioner evaporator cap is a relatively important small component in the air conditioning system. It is mainly used to seal the relevant interfaces of the evaporator and also serves as an early warning. Under normal circumstances, it can prevent refrigerant leakage and ensure that the pressure inside the evaporator is in a stable state. When there are abnormal changes in the internal pressure of the evaporator, such as excessive pressure or a small leak, the cap may send a warning signal to the maintenance personnel or user in some way. The existing nut cap structure mostly uses the telescopic change of the warning slide column to realize the reading of the warning signal. The existing nut cap warning telescopic pad structure is installed in the nut shell. After installation, its sealing effect is poor, resulting in poor warning effect. In order to ensure the normal function of its warning function, it needs to be improved. Utility Model Content

[0003] The utility model aims to overcome the shortcomings of the prior art, such as poor sealing effect and poor warning effect, and provides a nut sealing cap warning telescopic pad structure with good sealing effect and good warning effect.

[0004] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solution: a nut cap warning telescopic pad structure, comprising:

[0005] A sealing gasket is installed inside a nut housing connected to a connecting pipe of an air conditioner evaporator, wherein a sliding groove is provided on an outer top of the sealing gasket, and a compression chamber is provided on an inner top of the sealing gasket, wherein the compression chamber is communicated with the sliding groove;

[0006] The warning slide column includes a warning end and a connecting end. The warning end of the warning slide column is inserted into the warning observation cavity of the nut shell, and the connecting end of the warning slide column is inserted into the sliding groove and the compression cavity is matched and connected.

[0007] This telescopic pad structure is installed inside the nut shell connected to the connecting pipe of the air conditioner evaporator, and plays a warning role through its telescopic function. This telescopic pad structure includes a sealing pad block and a warning slide column, wherein the sealing pad block is installed and clamped inside the nut shell, and at the same time, a sliding groove is provided on the outer top of the sealing pad block, and the sliding groove is used to install the warning slide column. At the same time, a compression chamber is provided on the inner top of the sealing pad block, and the compression chamber is connected to the sliding groove. The warning slide column is divided into an upper warning end and a lower connecting end, wherein the connecting end of the warning slide column is inserted into the sliding groove. When the pressure of the air conditioner evaporator is normal, the compression chamber is compressed, and at the same time, the gas in the compression chamber pushes the warning slide column upward. When installing the air conditioner, observe that the warning slide column of the nut shell is pushed outward, which is a normal state. At the same time, when the air conditioner evaporator leaks and the pressure is abnormal, the warning slide moves downward, and the warning end of the warning slide moves downward. The nut shell is observed to retract the warning slide downward. This state is an abnormal air leakage state. By observing the extension and contraction state of the warning slide, the warning function is realized, thereby ensuring that the warning function is used effectively.

[0008] Preferably, the sealing gasket is conical in shape and has stepped sidewalls, and the sealing gasket is matched and engaged with the inner wall of the nut shell. The conical shape of the sealing gasket and the stepped sidewalls of the sealing gasket achieve perfect matching with the inner wall of the nut shell through the provision of the stepped structure, ensuring installation stability, thereby improving its sealing effect and enhancing the use effect.

[0009] Preferably, two guide grooves are provided on the top of the sealing gasket, and the guide grooves are placed on both sides of the sliding groove. A push rod and a guide rod are provided at the bottom of the connecting end of the early warning slide column, and the push rod is inserted into the sliding groove, and the guide rod is inserted into the guide groove. Wherein, two guide grooves are provided on the top of the sealing gasket, and the guide grooves are distributed on both sides of the sliding groove. At the same time, a push rod and a guide rod are provided on the bottom of the connecting end of the early warning slide column, and the push rod is inserted into the sliding groove, and the guide rod is inserted into the guide groove. The guide rod cooperates with the guide groove to realize the guiding effect of the early warning slide column, ensure the stability of the push rod sliding in the sliding groove, and further ensure the movement stability of the early warning slide column, improve its use effect, and ensure the accuracy of the observation signal obtained.

[0010] Preferably, a stop groove is provided on the upper end of the inner wall of the compression chamber, and a push piece is provided on the lower end of the push rod. The push piece is placed in the compression chamber and contacts the stop groove. A stop groove is provided on the inner wall of the compression chamber, and a push piece is provided on the lower end of the push rod. The push piece is a circular piece. When the sealing cap is installed on the connecting pipe of the air-conditioning evaporator, after the inflation and pressure maintenance are completed, the compression chamber is compressed. The gas in the compression chamber pushes the push piece to move upward and stops at the stop groove, completing the limit. At the same time, it drives the push rod to move upward, and then completes the early warning slide to slide into the early warning observation chamber set on the nut shell. When the air-conditioning evaporator leaks, the compressed compression chamber is restored, and the early warning slide moves downward. When observing the early warning observation chamber, the early warning slide is in a retracted state, indicating that it is in a leakage state. This structure can ensure the telescopic effect of the early warning slide, improve its use effect, and ensure the accuracy of the observation signal obtained.

[0011] Preferably, a snap-fit ​​strip is provided in the middle of the outer wall of the sealing block, which is embedded in a snap-fit ​​groove provided on the inner wall of the nut shell. This structure achieves an embedded snap-fit ​​connection between the sealing block and the nut shell, facilitating installation and improving the sealing performance of the installation connection, thereby enhancing its effectiveness and preventing the sealing performance between the sealing block and the nut shell from affecting early warning observation.

[0012] Preferably, the sealing block is sleeved with a sealing ring, which is placed above the clamping strip and is embedded in a sealing groove provided on the inner side wall of the nut shell. By sleeve-mounting the sealing ring on the sealing block and inserting it into the sealing groove provided on the inner wall of the nut shell, this structure can improve the sealing performance of the installation connection, thereby improving its performance and preventing the sealing between the sealing block and the nut shell from affecting the early warning observation.

[0013] Preferably, a sealing sheet is installed on the inner bottom of the sealing gasket, a positioning ring is provided on the top surface of the sealing sheet, an annular positioning groove is provided on the bottom surface of the sealing gasket, the top surface of the sealing sheet contacts the sealing gasket, and the positioning ring is embedded in the positioning groove. Wherein, a sealing sheet is installed on the inner bottom of the sealing gasket, a positioning ring is provided on the top surface of the sealing sheet, and at the same time, a positioning groove is provided on the inner bottom of the sealing gasket, the positioning groove is annular, and the positioning ring is embedded in the positioning groove. At the same time, the top surface of the sealing sheet contacts the bottom surface of the sealing gasket, so that the sealing sheet can play a role in sealing when the sealing cap is connected to the connecting pipe, thereby ensuring the sealing effect of its installation and avoiding the influence of the sealing performance of the sealing gasket and the nut shell on the early warning observation.

[0014] Preferably, the compression chamber is a cavity made of rubber material. The compression chamber is made of rubber material, which ensures that when the compression chamber is pressurized by gas, the gas in the compression chamber presses the warning slide, driving the warning slide to move, thereby ensuring the accuracy of the observation signal obtained and ensuring its good warning effect.

[0015] The beneficial effects of the utility model are: good sealing effect, avoiding the influence of the sealing performance of the sealing gasket and the nut shell on the early warning observation; the sliding of the early warning slide column is stable and reliable, ensuring the accuracy of the observation signal obtained, and ensuring its good early warning effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a cross-sectional view of the utility model;

[0017] Figure 2 yes Figure 1 Enlarged view at point A in the middle;

[0018] Figure 3 yes Figure 1 Enlarged view of point B in the middle.

[0019] In the accompanying drawings, 3. sealing gasket, 4. warning sliding column, 5. sealing plate, 30. sliding groove, 31. compression chamber, 32. guide groove, 33. stop groove, 34. snap-fit ​​strip, 35. sealing ring, 36. positioning groove, 40. push rod, 41. guide rod, 42. push plate, 50. positioning ring. DETAILED DESCRIPTION

[0020] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments. Obviously, the embodiments described are only some of the embodiments of this application, rather than all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is in no way intended to limit the present application, its application, or use. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of this application.

[0021] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0022] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of this application.

[0023] Example 1, as Figure 1-3 As shown, a nut sealing cap warning telescopic pad structure includes: a sealing gasket block 3, which is installed inside a nut shell connected to a connecting pipe of an air-conditioning evaporator, a sliding groove 30 is provided on the outer top of the sealing gasket block 3, and a compression chamber 31 is provided on the inner top of the sealing gasket block 3, and the compression chamber 31 is connected to the sliding groove 30; a warning slide column 4, including a warning end and a connecting end, the warning end of the warning slide column 4 is inserted into the warning observation chamber of the nut shell, and the connecting end of the warning slide column 4 is inserted into the sliding groove 30 and matched with the compression chamber 31.

[0024] The sealing pad 3 is conical and has a stepped side wall. The sealing pad 3 is matched and snap-fitted with the inner wall of the nut shell.

[0025] The top of the sealing block 3 is provided with two guide grooves 32, which are placed on both sides of the sliding groove 30. The bottom of the connecting end of the warning slide column 4 is provided with a push rod 40 and a guide rod 41. The push rod 40 is inserted into the sliding groove 30, and the guide rod 41 is inserted into the guide groove 32. The compression chamber 31 is a cavity made of rubber material.

[0026] A stop groove 33 is provided at the upper end of the inner wall of the compression chamber 31 , and a push piece 42 is provided at the lower end of the push rod 40 . The push piece 42 is placed in the compression chamber 31 and contacts the stop groove 33 .

[0027] A clamping strip 34 is provided in the middle of the outer side wall of the sealing gasket block 3 , and the clamping strip 34 is embedded in a clamping groove provided on the inner side wall of the nut shell.

[0028] The sealing gasket block 3 is sleeved with a sealing ring 35 , and the sealing ring 35 is placed above the clamping strip 34 . The sealing ring 35 is embedded in a sealing groove provided on the inner side wall of the nut shell.

[0029] A sealing sheet 5 is installed on the inner bottom of the sealing gasket block 3, and a positioning ring 50 is provided on the top surface of the sealing sheet 5. An annular positioning groove 36 is provided on the bottom surface of the sealing gasket block 3. The top surface of the sealing sheet 5 contacts the sealing gasket block 3, and the positioning ring 50 is embedded in the positioning groove 36.

[0030] The working principle of this utility model is as follows: Figure 1-3As shown, this telescopic pad structure is installed inside the nut housing connected to the connecting pipe of the air conditioner evaporator. Through its telescopic function, it serves as a warning. This telescopic pad structure includes a sealing pad 3 and a warning slide 4. The sealing pad 3 is mounted and clamped inside the nut housing. A sliding groove 30 is provided on the outer top of the sealing pad 3 for mounting the warning slide 4. A compression chamber 31 is provided on the inner top of the sealing pad 3, and the compression chamber 31 is connected to the sliding groove 30. The warning slide 4 is divided into an upper warning end and a lower connecting end, wherein the connecting end of the warning slide 4 is inserted into the sliding groove 30. When the pressure of the air conditioner evaporator is normal, the compression chamber 31 is compressed, and the gas in the compression chamber 31 pushes the warning slide 4 upward. During the air conditioner installation, the warning slide 4 is observed to be pushed outward from the nut housing, which is the normal state. At the same time, when the air conditioner evaporator leaks and the pressure is abnormal, the warning slide 4 moves downward, and the warning end of the warning slide 4 moves downward. The nut shell warning slide 4 is observed to be retracted downward. This state is an abnormal state of air leakage. By observing the telescopic state of the warning slide 4, the warning function is realized, thereby ensuring that the warning function is used effectively.

[0031] Among them, the shape of the sealing gasket block 3 is conical, and the side wall of the sealing gasket block 3 is a stepped structure. Through the setting of the stepped structure, it is possible to match the inner wall of the nut shell 1, ensuring the stability of the installation, thereby improving its sealing effect and improving the use effect.

[0032] Among them, two guide grooves 32 are set on the top of the sealing gasket 3, and the guide grooves 32 are distributed on both sides of the sliding groove 30. At the same time, a push rod 40 and a guide rod 41 are set on the bottom of the connecting end of the warning slide 4. The push rod 40 is inserted into the sliding groove 30, and the guide rod 41 is inserted into the guide groove 32. The guide rod 41 cooperates with the guide groove 32 to realize the guiding effect of the warning slide 4, ensuring the stability of the push rod 40 sliding in the sliding groove 30, and then ensuring the movement stability of the warning slide 4, improving its use effect, and ensuring the accuracy of the observation signal obtained.

[0033] Among them, the compression chamber 31 is a cavity made of rubber material, which is conical. At the same time, a stop groove 33 is provided on the inner wall of the compression chamber 31, and a push piece 42 is provided at the lower end of the push rod 40. The push piece 42 is a circular piece. When the nut shell is installed on the connecting pipe of the air-conditioning evaporator, after the inflation and pressure maintenance are completed, the compression chamber 31 is compressed, and the gas in the compression chamber 31 pushes the push piece 42 to move upward. The push piece 42 contacts the stop groove 33 to complete the stopping effect. At the same time, it drives the push rod 40 to move upward, and then completes the early warning slide 4 to slide into the early warning observation chamber set at the top of the nut shell, which plays a early warning effect. When the air-conditioning evaporator leaks, the compressed compression chamber 31 is restored. When observed from the outside, the early warning slide 4 moves downward to ensure the accuracy of the observation signal obtained and improve its use effect.

[0034] Among them, the compression chamber 30 is made of rubber material. The cavity of this material can ensure that after the compression chamber 30 is pressurized by the gas, the gas in the compression chamber 30 presses the warning slide column, driving the warning slide column to move, thereby ensuring the accuracy of the observation signal obtained and ensuring its good warning effect.

[0035] This structure realizes the embedded snap connection between the sealing gasket block 3 and the nut shell, making installation convenient and improving the sealing performance of the installation connection, thereby improving its use effect and avoiding the influence of the sealing performance of the sealing gasket block 3 and the nut shell on early warning observation.

[0036] The sealing ring 35 installed on the sealing gasket block 3 is embedded in the sealing groove provided on the inner wall of the nut shell and snapped into place. This structure can improve the sealing performance of its installation connection, thereby improving its use effect and avoiding the influence of the sealing performance of the sealing gasket block 3 and the nut shell on the early warning observation.

[0037] Among them, a sealing sheet 5 is installed on the inner bottom of the sealing gasket 3, and an opening is provided in the middle of the sealing sheet 5 to ensure that the compression chamber 31 can be compressed when the air-conditioning evaporator is inflated and pressurized. A positioning ring 50 is provided on the top surface of the sealing sheet 5. At the same time, a positioning groove 36 is provided on the inner bottom of the sealing gasket 3. The positioning groove 36 is annular, and the positioning ring 50 is embedded in the positioning groove 36. At the same time, the top surface of the sealing sheet 5 contacts the bottom surface of the sealing gasket 3, so that the sealing sheet 5 can play a role in sealing when the sealing cap is connected to the connecting pipe, thereby ensuring the sealing effect of its installation and avoiding the influence of the sealing performance of the sealing gasket 3 and the nut shell on the early warning observation.

[0038] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A nut cap warning telescopic pad structure, characterized in that: include: A sealing gasket (3) is installed inside a nut housing connected to a connecting pipe of an air conditioner evaporator, a sliding groove (30) is provided on an outer top of the sealing gasket (3), and a compression chamber (31) is provided on an inner top of the sealing gasket (3), and the compression chamber (31) is communicated with the sliding groove (30); The warning slide column (4) comprises a warning end and a connecting end. The warning end of the warning slide column (4) is inserted into the warning observation cavity of the nut shell, and the connecting end of the warning slide column (4) is inserted into the sliding groove (30) and matched with the compression cavity (31).

2. The nut cap warning telescopic pad structure according to claim 1 is characterized in that: The sealing pad (3) is conical and has a stepped side wall, and the sealing pad (3) is matched and snap-fitted with the inner wall of the nut shell.

3. The nut cap warning telescopic pad structure according to claim 1 is characterized in that: Two guide grooves (32) are provided on the top of the sealing pad (3), and the guide grooves (32) are placed on both sides of the sliding groove (30). A push rod (40) and a guide rod (41) are provided at the bottom of the connecting end of the warning slide column (4), and the push rod (40) is inserted into the sliding groove (30), and the guide rod (41) is inserted into the guide groove (32).

4. The nut cap warning telescopic pad structure according to claim 3 is characterized in that: A stop groove (33) is provided at the upper end of the inner wall of the compression chamber (31), and a push piece (42) is provided at the lower end of the push rod (40). The push piece (42) is placed in the compression chamber (31), and the push piece (42) contacts the stop groove (33).

5. The nut cap warning telescopic pad structure according to claim 1 is characterized in that: A snap-fit ​​strip (34) is provided in the middle of the outer side wall of the sealing pad (3), and the snap-fit ​​strip (34) is embedded in a snap-fit ​​groove provided on the inner side wall of the nut shell.

6. The nut cap warning telescopic pad structure according to claim 5, characterized in that: The sealing pad (3) is sleeved with a sealing ring (35), and the sealing ring (35) is placed above the clamping strip (34). The sealing ring (35) is embedded in a sealing groove provided on the inner side wall of the nut shell.

7. The nut cap warning telescopic pad structure according to claim 1 is characterized in that: A sealing sheet (5) is installed on the inner bottom of the sealing gasket (3), a positioning ring (50) is provided on the top surface of the sealing gasket (5), an annular positioning groove (36) is provided on the bottom surface of the sealing gasket (3), the top surface of the sealing sheet (5) contacts the sealing gasket (3), and the positioning ring (50) is embedded in the positioning groove (36).

8. The nut cap warning telescopic pad structure according to claim 1 is characterized in that: The compression chamber (31) is a chamber made of rubber material.

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