Pressure early warning sealing cap

Abstract

The utility model discloses a pressure early warning sealing cap which comprises a sealing cap body and a transparent shell, the transparent shell surrounds the periphery of the sealing cap body, the upper end face of the transparent shell is connected with the outer side face of the sealing cap body in a clamped mode, an inner clamping groove and a transverse groove are formed in the sealing cap body, the inner clamping groove is formed in the upper end face of the sealing cap body, and the transverse groove is formed in the lower end face of the sealing cap body. The transverse grooves are formed in the lower end face of the sealing cap body, the two ends of each transverse groove penetrate through the outer side face of the sealing cap body, the cross section of each transverse groove is wide in the upper portion and narrow in the lower portion, the transverse grooves are evenly distributed around the center of the sealing cap body, color plates are arranged on the upper end faces in the transverse grooves, and the color plates are fixedly connected with the upper end faces in the transverse grooves. The utility model has the beneficial effects that the sealing performance is higher, and whether air leakage occurs or not can be observed more quickly.

Description

Technical Field

[0001] The utility model relates to the technical field related to air-conditioning evaporator parts, in particular to a pressure warning sealing cap. Background Art

[0002] Traditional sealing caps need to have good sealing properties, but during testing, they are often difficult to detect in a short time due to some fine lines, resulting in leakage in actual use. Moreover, traditional sealing caps are relatively fast during practical pressure testing, and it is often difficult to observe whether there is leakage, which is very time-consuming. Utility Model Content

[0003] The utility model aims to overcome the shortcomings of the prior art in that the sealing performance is not high enough and the detection time is too time-consuming, and provides a pressure warning sealing cap with higher sealing performance and faster observation of whether there is leakage.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A pressure warning cap includes a cap body and a transparent shell. The transparent shell surrounds the cap body, and the upper end face of the transparent shell is snap-connected with the outer side face of the cap body. The cap body is provided with an inner slot and a transverse slot. The inner slot is placed on the upper end face of the cap body. There are several transverse slots, which are all placed on the lower end face of the cap body. Both ends of the transverse slot pass through the outer side face of the cap body. The cross-sectional shape of the transverse slot is wide at the top and narrow at the bottom. The transverse slots are evenly distributed around the center of the cap body. A color plate is provided on the upper end face of the transverse slot, and the color plate is fixedly connected to the upper end face of the transverse slot.

[0006] When in use, insert the test pipe into the inner slot of the sealing cap body, and then perform a pressure warning test. If there is no leakage, the lower end of the horizontal groove will be stretched open, revealing the conspicuous color plate inside. The leakage can be quickly identified based on the stretching of the horizontal groove. In actual use, pressure warning is performed based on the stretching of the horizontal groove, and the transparent shell wraps the entire sealing cap body as a secondary seal. Once the sealing cap body leaks and the transparent shell is popped open, pressure warning can also be performed, achieving higher sealing and faster observation of leakage.

[0007] Preferably, a cavity is provided on the lower end surface of the inner slot, the cavity being concentric with the inner slot, the cross-sectional shape of the cavity being an arc with a high center and low sides, the upper end surface of the transverse slot being an arc with a high center and low sides, and the shape of the color plate corresponding to the shape of the upper end surface of the transverse slot. The shape of the bottom surface of the cavity matches the shape of the inner top surface of the transverse slot, so as to facilitate better expansion of the lower end surface of the transverse slot when pressure is applied to the closure cap body.

[0008] Preferably, the lower end surface of the color plate is provided with a plurality of horizontal lines, which are evenly distributed on the lower end surface of the color plate and whose direction is consistent with the direction of the horizontal grooves. The horizontal lines on the color plate can better distinguish the opening size of the horizontal grooves and judge the pressure in the sealing cap body at the same time.

[0009] Preferably, a brim is provided on the outer surface of the closure cap body, the brim being formed integrally with the closure cap body and the lower end surface of the brim being provided with an external snap-in groove, the upper end of the transparent shell being placed in the external snap-in groove, and the transparent shell being snap-fitted to the brim via the external snap-in groove. The external snap-in groove facilitates fixing the transparent shell and improves sealing performance.

[0010] Preferably, the inner groove is provided with a plurality of sealing rings, the sealing rings being evenly distributed vertically on the inner wall of the inner groove, the sealing rings being integrally formed with the closure cap body, and the cross-section of the sealing rings being an arc shape that is narrow inside and wide outside. The plurality of sealing rings and the shape of the sealing rings can better secure the vent pipe.

[0011] Preferably, an annular boss pad is provided at the lower end of the inner slot, the cross-section of the annular boss pad being T-shaped, the center of the annular boss pad being aligned with the center of the inner slot, and the annular boss pad being integrally formed with the sealing cap body. The boss pad facilitates sealing the vent pipe, reduces the number of seals, and is very easy to install.

[0012] The beneficial effects of the present invention are: higher sealing and faster observation of whether there is leakage; the shape of the bottom surface of the cavity cooperates with the shape of the inner top surface of the transverse groove, which facilitates better opening of the lower end surface of the transverse groove when there is pressure inside the closure cap body; the horizontal lines on the color plate can better distinguish the opening size of the transverse groove and judge the pressure size inside the closure cap body at one time; the external card groove facilitates fixing the transparent shell and improves the sealing; multiple sealing rings and the shape of the sealing rings can better fix the ventilation pipe; the boss pad facilitates sealing the ventilation pipe, reduces the number of seals, and is very convenient to install. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural diagram of the utility model;

[0014] Figure 2 It is a cross-sectional view of the main view of the present utility model;

[0015] Figure 3 yes Figure 2 An enlarged view of detail A;

[0016] Figure 4 yes Figure 2 Magnified view of detail B.

[0017] In the figure: 1. sealing cap body, 2. transparent shell, 3. transverse groove, 4. color plate, 5. inner slot, 6. transverse line, 7. cavity, 8. cap brim, 9. outer slot, 10. sealing ring, 11. annular boss pad. DETAILED DESCRIPTION

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

[0019] like Figure 1 、 Figure 2 and Figure 4 In an embodiment, a pressure warning cap is provided, which includes a cap body 1 and a transparent shell 2. The transparent shell 2 surrounds the cap body 1, and the upper end face of the transparent shell 2 is snap-fitted to the outer side face of the cap body 1. The cap body 1 is provided with an inner slot 5 and a transverse slot 3. The inner slot 5 is placed on the upper end face of the cap body 1, and there are several transverse slots 3, all of which are placed on the lower end face of the cap body 1. Both ends of the transverse slot 3 pass through the outer side face of the cap body 1. The cross-sectional shape of the transverse slot 3 is wide at the top and narrow at the bottom. The transverse slots 3 are evenly distributed around the center of the cap body 1. A color plate 4 is provided on the upper end face inside the transverse slot 3, and the color plate 4 is fixedly connected to the upper end face inside the transverse slot 3.

[0020] like Figure 2 and Figure 4 As shown, a cavity 7 is provided on the lower end face of the inner slot 5, and the cavity 7 is concentric with the inner slot 5. The lower end face of the cross-sectional shape of the cavity 7 is an arc shape with a high middle and low sides, and the upper end face in the transverse groove 3 is an arc shape with a high middle and low sides. The shape of the color plate 4 corresponds to the shape of the upper end face in the transverse groove 3.

[0021] like Figure 4 As shown, a plurality of transverse lines 6 are provided on the lower end surface of the color plate 4 . The transverse lines 6 are evenly distributed on the lower end surface of the color plate 4 , and the direction of the transverse lines 6 is consistent with the direction of the transverse grooves 3 .

[0022] like Figure 2 and Figure 3 As shown, a brim 8 is provided on the outer side of the cap body 1. The brim 8 surrounds the outer side of the cap body 1 and is integrally formed with the cap body 1. An outer card slot 9 is provided on the lower end surface of the brim 8. The upper end of the transparent shell 2 is placed in the outer card slot 9. The transparent shell 2 is connected to the brim 8 through the outer card slot 9.

[0023] like Figure 1 and Figure 2 As shown, a plurality of sealing rings 10 are provided in the inner groove 5 , and the sealing rings 10 are evenly distributed on the inner wall of the inner groove 5 . The sealing rings 10 and the sealing cap body 1 are integrally formed, and the cross-section of the sealing ring 10 is an arc shape that is narrow inside and wide outside.

[0024] like Figure 2As shown, an annular boss pad 11 is provided on the lower end of the inner slot 5 , the cross-section of the annular boss pad 11 is T-shaped, the center of the annular boss pad 11 is consistent with the center of the inner slot 5 , and the annular boss pad 11 and the sealing cap body 1 are integrally formed.

[0025] When in use, the tested pipe is inserted into the inner groove 5 of the sealing cap body 1, and is in close contact with the annular boss pad on all sides. The pipe is fixed with a sealing ring 10 to ensure that there is no side leakage. Air is inflated into the inner cavity 7 to perform a pressure warning test. If there is no leakage, the lower end of the transverse groove 3 will be stretched open, revealing the conspicuous color plate 4 inside. The leakage can be quickly identified based on the situation of the transverse lines 6 leaked from the color plate 4 after the transverse groove 3 is stretched. In actual use, the pressure is also distinguished based on the number of transverse lines 6 leaked from the color plate 4 after the transverse groove 3 is stretched, so as to achieve pressure warning. In addition, the transparent shell 2 wraps the entire sealing cap body 1 as a secondary seal. Once the sealing cap body 1 leaks, the transparent shell 2 is bounced off from the outer groove 9 on the brim 8, which can also provide pressure warning, thereby achieving higher sealing and faster observation of leakage.

Claims

1. A pressure warning cap, characterized in that: The invention comprises a sealing cap body (1) and a transparent shell (2), wherein the transparent shell (2) surrounds the sealing cap body (1), the upper end face of the transparent shell (2) is snap-connected with the outer side face of the sealing cap body (1), the sealing cap body (1) is provided with an inner slot (5) and a transverse slot (3), the inner slot (5) is located on the upper end face of the sealing cap body (1), the transverse slots (3) are provided in a plurality and are all located on the lower end face of the sealing cap body (1), both ends of the transverse slots (3) pass through the outer side face of the sealing cap body (1), the cross-section of the transverse slots (3) is wide at the top and narrow at the bottom, the transverse slots (3) are evenly distributed around the center of the sealing cap body (1), the upper end face of the transverse slots (3) is provided with a color plate (4), and the color plate (4) is fixedly connected to the upper end face of the transverse slots (3).

2. The pressure warning sealing cap according to claim 1, characterized in that: A cavity (7) is provided on the lower end surface of the inner slot (5), and the cavity (7) is concentric with the inner slot (5). The lower end surface of the cross-sectional shape of the cavity (7) is an arc shape with a high middle and low sides. The upper end surface in the transverse slot (3) is an arc shape with a high middle and low sides. The shape of the color plate (4) corresponds to the shape of the upper end surface in the transverse slot (3).

3. The pressure warning sealing cap according to claim 2, characterized in that: A plurality of transverse lines (6) are provided on the lower end surface of the color plate (4), and the transverse lines (6) are evenly distributed on the lower end surface of the color plate (4), and the direction of the transverse lines (6) is consistent with the direction of the transverse grooves (3).

4. The pressure warning sealing cap according to claim 1, characterized in that: A brim (8) is provided on the outer side of the closure cap body (1), the brim (8) surrounds the outer side of the closure cap body (1) and is formed integrally with the closure cap body (1), an outer card slot (9) is provided on the lower end surface of the brim (8), the upper end of the transparent shell (2) is placed in the outer card slot (9), and the transparent shell (2) is snap-connected to the brim (8) via the outer card slot (9).

5. The pressure warning sealing cap according to claim 1, characterized in that: A plurality of sealing rings (10) are provided in the inner groove (5). The sealing rings (10) are evenly distributed on the inner wall of the inner groove (5) from top to bottom. The sealing rings (10) and the sealing cap body (1) are integrally formed. The cross-section of the sealing ring (10) is an arc shape that is narrow inside and wide outside.

6. The pressure warning sealing cap according to claim 5, characterized in that: An annular boss pad (11) is provided on the lower end of the inner slot (5), the cross-section of the annular boss pad (11) is T-shaped, the center of the annular boss pad (11) is consistent with the center of the inner slot (5), and the annular boss pad (11) and the sealing cap body (1) are integrally formed.

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