Clamping type fire coupling

Abstract

The utility model provides a clamping type fire coupling, relates to the technical field of fire fighting equipment, and solves the technical problem of poor sealing effect in the prior art. The device comprises a male connector, a female connector, a first sealing ring and a second sealing ring, the male connector is clamped through a clamping block arranged on the female connector, the first sealing ring and the second sealing ring are both arranged on the inner circumferential wall of the female connector, and the inner wall of the female connector is provided with an inclined wall face with the diameter gradually reduced. The second sealing ring is arranged on the inclined wall face and abuts against the conical head end of the male connector. According to the utility model, the second sealing ring is arranged on the inclined wall surface, so that the sealing performance of the connection between the male joint and the female joint is better.

Description

Technical Field

[0001] The utility model relates to the technical field of fire-fighting equipment, in particular to a card-type fire-fighting interface. Background Art

[0002] The current card-type fire-fighting interfaces on the market use three sliders set on the periphery to achieve card connection and are sealed by a sealing ring. However, this type of structure can be used normally for fire-fighting pipe interfaces with smaller diameters. However, for card-type fire-fighting interfaces with large pipe diameters, large errors are prone to occur during processing or deformation during use, resulting in the sealing ring being unable to fit tightly with the interface, thereby leaking.

[0003] Secondly, when using a pipe interface with a larger diameter, the three-slider structure is prone to deflection and jamming the interface, thus affecting quick installation. Utility Model Content

[0004] The purpose of the present invention is to provide a card-type fire protection interface that solves the technical problem of poor sealing effect in the prior art. The various technical effects that can be produced by the preferred technical solution among the many technical solutions provided by the present invention are described in detail below.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] The card-type fire-fighting interface provided by the utility model includes a male connector, a female connector, a first sealing ring and a second sealing ring. The male connector is clamped by a clamping block arranged on the female connector. The first sealing ring and the second sealing ring are both arranged on the inner circumferential wall of the female connector. The inner wall of the female connector has an inclined wall surface with a gradually decreasing diameter. The second sealing ring is arranged on the inclined wall surface, and the second sealing ring is against the tapered head end of the male connector.

[0007] Preferably, a first mounting groove and a second mounting groove are provided on the inner peripheral wall of the female connector, the first sealing ring is provided in the first mounting groove, and the second sealing ring is provided in the second mounting groove.

[0008] Preferably, the number of the clamping blocks is at least five and they are evenly arranged on the peripheral side wall of the female connector.

[0009] Preferably, the half of the first sealing ring facing the interior of the female connector is symmetrical to the half facing the opening of the female connector.

[0010] Preferably, a mounting groove is provided on the peripheral side wall of the female connector, the clamping block can be slidably arranged in the mounting groove, a reset member is provided between the clamping block and the female connector, the reset member has a force to drive the clamping block to move toward the interior of the female connector, and a clamping groove is provided on the peripheral side wall of the male connector, the clamping block can extend into the clamping groove.

[0011] Preferably, the end surface of the clamping block facing the opening direction of the female connector is an inclined surface, and the thickness of one end of the clamping block facing the interior direction of the female connector is greater than the thickness of the other end facing the opening direction of the female connector.

[0012] Preferably, it also includes an unlocking ring, which is slidably arranged on the male connector, and one end of the unlocking ring can be inserted between the male connector and the female connector. The unlocking ring abuts against the inclined surface and drives the clamping block to retract into the installation groove.

[0013] Preferably, a limiting ring is further included, wherein the limiting ring is arranged on a side of the unlocking ring away from the female connector, and the outer diameter of the limiting ring is greater than the inner diameter of the unlocking ring.

[0014] This application adopts the above technical solution, which has at least the following beneficial effects:

[0015] The card-type fire interface includes a male connector, a female connector, a first sealing ring, and a second sealing ring. The male connector is connected via a snap-in block on the female connector. Both the first and second sealing rings are located on the inner circumferential wall of the female connector. The inner wall of the female connector has an inclined wall surface with a gradually decreasing diameter. The second sealing ring is located on the inclined wall surface and abuts against the tapered head of the male connector. The use of two sealing rings enhances sealing performance, and the second sealing ring is located on the inclined wall surface and abuts against the tapered head of the male connector, thus ensuring better sealing performance.

[0016] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 This is a schematic diagram of the overall cross-sectional structure of the card-type fire protection interface provided by an embodiment of the present utility model;

[0019] Figure 2 This is a schematic diagram of the overall structure of the card-type fire protection interface provided by the embodiment of the utility model;

[0020] Figure 3 This is a schematic diagram of the cross-sectional structure of the female connector provided by an embodiment of the present utility model;

[0021] Figure 4 yes Figure 1 Schematic diagram of the partially enlarged structure.

[0022] In the figure, 1 is the male connector; 2 is the female connector; 3 is the first sealing ring; 4 is the second sealing ring; 5 is the clamping block; 6 is the inclined wall; 7 is the conical head end; 8 is the first mounting groove; 9 is the second mounting groove; 10 is the mounting groove; 11 is the clamping groove; 12 is the inclined surface; 13 is the unlocking ring; 14 is the limiting ring. DETAILED DESCRIPTION

[0023] To make the purpose, technical solution, and advantages of the present invention more clear, the technical solution of the present invention will be described in detail below. Obviously, the embodiments described are only some of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0024] A specific embodiment of the present utility model provides a card-type fire-fighting interface, including a male connector 1, a female connector 2, a first sealing ring 3 and a second sealing ring 4. The male connector 1 is clamped by a clamping block 5 arranged on the female connector 2. The first sealing ring 3 and the second sealing ring 4 are both arranged on the inner circumferential wall of the female connector 2. The inner wall of the female connector 2 has an inclined wall surface 6 with a gradually decreasing diameter. The second sealing ring 4 is arranged on the inclined wall surface 6, and the second sealing ring 4 is against the tapered head end 7 of the male connector 1.

[0025] The male connector 1 and the female connector 2 can be used to connect different pipes respectively, so that the connection between different pipes can be realized through the male connector 1 and the female connector 2, wherein the male connector 1 is inserted into the interior of the female connector 2 and is clamped by the clamping block 5 set in the female connector 2, so as to realize quick connection. In this application, a first sealing ring 3 and a second sealing ring 4 are provided, and the first sealing ring 3 and the second sealing ring 4 are both arranged on the inner circumferential wall of the female connector 2, so that after the male connector 1 is inserted into the interior of the female connector 2, the two sealing rings can be used to achieve a sealed connection between the two. In this application, the interior of the female connector 2 has an inclined wall surface 6 with a gradually decreasing diameter, and the second sealing ring 4 is arranged on the inclined wall surface 6. The corresponding head end of the male connector 1 is a conical head end 7. In this way, after the male connector 1 is inserted into the interior of the female connector 2, the second sealing ring 4 is against the conical head end 7 for sealing connection. In this way, the sealing effect is ensured by the setting of the two sealing rings of the first sealing ring 3 and the second sealing ring 4 in this application.

[0026] In some embodiments, a first mounting groove 8 and a second mounting groove 9 are provided on the inner peripheral wall of the female connector 2, the first sealing ring 3 is provided in the first mounting groove 8, and the thickness of the first sealing ring 3 is greater than the depth of the first mounting groove 8, the second sealing ring 4 is provided in the second mounting groove 9, and the thickness of the second sealing ring 4 is greater than the depth of the second mounting groove 9, so that the first sealing ring 3 and the second sealing ring 4 can protrude from the end surface where they are provided, thereby ensuring a good sealing effect. At the same time, the provision of the first mounting groove 8 and the second mounting groove 9 can ensure the installation of the sealing ring, and can ensure that the position of the first sealing ring 3 and the second sealing ring 4 will not be affected when the male connector 1 is inserted.

[0027] In some embodiments, the number of the clamping blocks 5 is at least five and they are evenly arranged on the side walls of the female connector 2. In this way, by setting a larger number of clamping blocks 5, it is ensured that the spacing between the clamping blocks is not too large when the diameter of the card-type fire interface is large. In this way, it can be ensured that when the male connector 1 and the female connector 2 are plugged in, the distortion is an angle tilt, and it can also ensure that the male connector 1 will be tightly pressed against at least one clamping block 5, and the male connector 1 will not be pressed against two clamping blocks 5, causing the clamping blocks 5 to shift and become stuck, thereby making the plugging smoother.

[0028] In some embodiments, the half of the first sealing ring 3 facing the interior of the female connector 2 is symmetrical to the half facing the opening of the female connector 2 .

[0029] In some embodiments, a mounting groove 10 is provided on the peripheral side wall of the female connector 2. The mounting groove 10 is an annular groove, and a limiting ring is provided at the slot position. The limiting ring has a perforation, and the clamping block 5 can be slidably arranged in the mounting groove 10, and the clamping block 5 can be slidably arranged in the perforation, and a tightening protrusion is provided on the side of the clamping block 5, which is located in the mounting groove 10 and can abut on the limiting ring, so as to limit the clamping block 5 from falling out of the perforation, and a reset member is provided between the clamping block 5 and the female connector 2, and the reset member has a force that drives the clamping block 5 to move toward the inside of the female connector 2. The clamping block 5 is driven by the reset member to remain in the extended state, thereby ensuring that the clamping block 5 can be in a state of clamping the male connector 1, and a clamping groove 11 is provided on the peripheral side wall of the male connector 1, and the clamping block 5 can be extended into the clamping groove 11. The clamping block 5 can be clamped in the clamping groove 11 to limit the male connector 1 from falling out of the female connector 2.

[0030] The reset element may be a spring.

[0031] The specific end face of the clamping block 5 facing the opening direction of the female connector 2 is an inclined surface 12, and the thickness of the end of the clamping block 5 facing the inner direction of the female connector 2 is greater than the thickness of the end facing the opening direction of the female connector 2. This inclined surface 12 is used to cooperate with the unlocking ring 13, and the unlocking ring 13 is slidably arranged on the male connector 1. One end of the unlocking ring 13 can be inserted between the male connector 1 and the female connector 2. The end of the unlocking ring 13 facing the female connector 2 is a cylinder. The unlocking ring 13 can be abutted against the inclined surface 12 and drive the clamping block 5 to retract into the installation groove 10. By abutting the unlocking ring 13 on the inclined surface 12 and continuing to push the unlocking ring 13, the clamping block 5 can be pushed back into the installation groove 10. At this time, the clamping block 5 is disengaged from the clamping groove 11, and the male connector 1 can be pulled out of the female connector 2.

[0032] In some embodiments, a limiting ring 14 is further included. The limiting ring 14 is arranged on the side of the unlocking ring 13 away from the female connector 2. The outer diameter of the limiting ring 14 is larger than the inner diameter of the unlocking ring 13. The position of the unlocking ring 13 can be limited by the limiting ring 14.

[0033] In the present invention, the terms "one embodiment", "some embodiments", "examples", "specific examples", "some examples", etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples without contradiction.

[0034] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A card-type fire protection interface, characterized in that: It includes a male connector, a female connector, a first sealing ring and a second sealing ring. The male connector is clamped by a clamping block provided on the female connector. The first sealing ring and the second sealing ring are both provided on the inner circumferential wall of the female connector. The inner wall of the female connector has an inclined wall surface with a gradually decreasing diameter. The second sealing ring is provided on the inclined wall surface. The second sealing ring abuts against the tapered head end of the male connector.

2. The card-type fire protection interface according to claim 1, characterized in that: A first mounting groove and a second mounting groove are provided on the inner peripheral wall of the female connector. The first sealing ring is provided in the first mounting groove, and the second sealing ring is provided in the second mounting groove.

3. The card-type fire protection interface according to claim 1, characterized in that: The number of the clamping blocks is at least five and they are evenly arranged on the peripheral side wall of the female connector.

4. The card-type fire protection interface according to claim 1, characterized in that: The half of the first sealing ring facing the interior of the female connector is symmetrical to the half facing the opening of the female connector.

5. The card-type fire protection interface according to claim 1, characterized in that: A mounting groove is provided on the peripheral side wall of the female connector, and the clamping block is slidably provided in the mounting groove. A reset member is provided between the clamping block and the female connector, and the reset member has a force that drives the clamping block to move toward the interior of the female connector. A clamping groove is provided on the peripheral side wall of the male connector, and the clamping block can extend into the clamping groove.

6. The card-type fire protection interface according to claim 5, characterized in that: The end surface of the clamping block facing the opening direction of the female connector is an inclined surface, and the thickness of one end of the clamping block facing the interior direction of the female connector is greater than the thickness of the other end facing the opening direction of the female connector.

7. The card-type fire protection interface according to claim 6, characterized in that: It also includes an unlocking ring, which is slidably arranged on the male connector. One end of the unlocking ring can be inserted between the male connector and the female connector. The unlocking ring abuts against the inclined surface and drives the clamping block to retract into the installation groove.

8. The card-type fire protection interface according to claim 7, characterized in that: It also includes a limiting ring, which is arranged on a side of the unlocking ring away from the female connector, and the outer diameter of the limiting ring is greater than the inner diameter of the unlocking ring.

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