Ferrule ball valve

Abstract

The utility model relates to the technical field of ball valves, in particular to a ferrule ball valve, which comprises a valve, two ends of the valve are communicated with communication ports, inner rings are mounted in the communication ports, external threads are arranged outside ports of the communication ports, compression nuts are mounted at the positions of the external threads in a threaded manner, and the compression nuts compress and fix the inner rings. The inner ring comprises an outer ring body and an inner ring body, the outer ring body is obliquely expanded, the inner ring body is obliquely contracted, the bent position of the outer ring body and the bent position of the inner ring body face the communicating opening, clamping grooves are formed in the inner ring body at intervals, and rubber strips are fixedly installed at the positions of the clamping grooves. The structure of an original inner ring is improved, the original inner ring is designed to be of a bent structure with the outer ring and the inner ring, the structure is easier to deform due to propelling, and the larger the deformation is, the larger the generated pressing force is, and the firmer the fixed butt joint pipeline is.

Description

Technical Field

[0001] The utility model relates to the technical field of ball valves, in particular to a sleeve ball valve. Background Art

[0002] The ferrule ball valve is a type of valve. The connection position between the ferrule ball valve and the pipeline is a butt connection port. An inner ring is installed in the connection port. The installation nut is tightened on the connection port. The nut presses and fixes the inner ring, thereby pressing and fixing the butt pipe.

[0003] With this design structure, the compression of the butt-jointed pipe depends entirely on the deformation of the inner ring. The inner ring is designed as an integrated structure, and the deformation range is not large for the cover body to be opened, so the compression effect is not very tight. Utility Model Content

[0004] The utility model aims to provide a sleeve ball valve to solve the problem that the inner ring integrated design proposed in the above background technology is a structure with an open cover body and a small deformation range, so the clamping effect is not very tight.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A ferrule ball valve comprises a valve, wherein both ends of the valve are connected with a connecting port, an inner ring is installed in the connecting port, an external thread is provided at the port outside of the connecting port, a clamping nut is threadedly installed at the position of the external thread, the clamping nut clamps and fixes the inner ring, the inner ring comprises an outer ring and an inner ring, the outer ring is obliquely opened, the inner ring is obliquely contracted, the bending parts of the outer ring and the inner ring are arranged toward the connecting port, clamping grooves are arranged at intervals on the inner ring, and rubber strips are fixedly installed at the positions of the clamping grooves.

[0007] As a further description of the above technical solution:

[0008] A docking tube is arranged inside the port of the communication opening.

[0009] As a further description of the above technical solution:

[0010] The ports of the outer ring and the inner ring of the inner ring are arranged flush.

[0011] As a further description of the above technical solution:

[0012] The inner ring is made of elastic metal material.

[0013] As a further description of the above technical solution:

[0014] The number of the rubber strips is three to five.

[0015] As a further description of the above technical solution:

[0016] A ring platform is provided at the end of the clamping nut, and the position of the ring platform corresponds to that of the inner ring.

[0017] Compared with the prior art, the utility model provides a sleeve ball valve, which has the following beneficial effects:

[0018] 1. In the utility model, the structure of the original inner ring is improved and designed into a bending structure of an outer ring plus an inner ring, which is more easily deformed due to advancement;

[0019] 2. In the utility model, a rubber strip is designed on the inner ring to reduce the deformation resistance of the inner ring, so that the deformation range is larger. The larger the deformation, the greater the clamping force generated, and the more firmly the butt-jointed pipe is fixed. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the cross-sectional structure of the inner ring of the utility model;

[0021] Figure 2 This is a schematic diagram of the inner ring structure of the utility model;

[0022] Figure 3 It is a schematic diagram of the overall structure of the utility model.

[0023] Legend:

[0024] 1. Valve; 2. Connecting port; 3. Inner ring; 4. External thread; 5. Locking nut; 6. Rubber strip. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] Example:

[0027] See also Figure 1-Figure 3 The utility model provides a ferrule ball valve, including a valve 1, wherein both ends of the valve 1 are connected with a connecting port 2, an inner ring 3 is installed in the connecting port 2, an external thread 4 is provided at the port outer position of the connecting port 2, a clamping nut 5 is threadedly installed at the position of the external thread 4, the clamping nut 5 is clamped and fixed to the inner ring 3, the inner ring 3 includes an outer ring and an inner ring, the outer ring is obliquely opened, the inner ring is obliquely contracted, the bending part of the outer ring and the inner ring is arranged toward the connecting port 2, clamping grooves are arranged at intervals on the inner ring, and rubber strips 6 are fixedly installed at the position of the clamping grooves.

[0028] Specifically, Figure 1As shown, a butt plug is provided on the inner side of the port of the connecting port 2, and the butt plug is inserted into the butt tube to guide the flow.

[0029] Specifically, Figure 1 As shown, the outer ring of the inner ring 3 is flush with the port of the inner ring. The inner ring 3 is made of elastic metal material, which is easy to push and can also be deformed.

[0030] Specifically, the number of the rubber strips 6 is three to five to avoid excessive number, which would result in a reduction in the material of the inner ring 3 and insufficient rebound pressure.

[0031] Specifically, Figure 1 As shown, a ring platform is provided at the end of the clamping nut 5, and the ring platform corresponds to the position of the inner ring 3, and can push the inner ring 3 to move.

[0032] Working principle:

[0033] When in use, first put the clamping nut 5 and the inner ring 3 on the butt joint pipe, then insert the butt joint pipe mouth into the port of the connecting port 2, and insert the butt joint pipe into the butt joint pipe for diversion. At the same time, the bending part of the inner ring 3 enters the port of the connecting port 2. At this time, the clamping nut 5 is spirally connected with the external thread 4, and the ring platform of the clamping nut 5 is pressed onto the inner ring 3. During the screwing process, the inner ring 3 is pushed inward, and the inner ring 3 is squeezed, deformed and contracted. The rubber strip 6 provides a larger deformation amplitude for the inner ring deformation of the inner ring 3. In this way, the deformation amplitude of the inner ring 3 is relatively large, and the clamping force generated on the butt joint pipe is greater, until the ring platform of the clamping nut 5 contacts the port position of the connecting port 2.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A ferrule ball valve, comprising a valve (1), wherein both ends of the valve (1) are connected to each other with a communication port (2), an inner ring (3) is installed in the communication port (2), an external thread (4) is provided at the port outside the communication port (2), a clamping nut (5) is threadedly installed at the position of the external thread (4), and the clamping nut (5) is arranged to clamp and fix the inner ring (3), wherein: The inner ring (3) comprises an outer ring and an inner ring, the outer ring is obliquely opened, and the inner ring is obliquely contracted, the bending parts of the outer ring and the inner ring are arranged toward the connecting port (2), and clamping grooves are arranged at intervals on the inner ring, and rubber strips (6) are fixedly installed at the positions of the clamping grooves.

2. A sleeve ball valve according to claim 1, characterized in that: A docking tube is provided inside the port of the communication port (2).

3. A sleeve ball valve according to claim 1, characterized in that: The ports of the outer ring and the inner ring of the inner ring (3) are arranged flush with each other.

4. A ferrule ball valve according to claim 1, characterized in that: The inner ring (3) is made of elastic metal material.

5. The ferrule ball valve according to claim 1, characterized in that: The number of the rubber strips (6) is three to five.

6. A sleeve ball valve according to claim 1, characterized in that: The end of the compression nut (5) is provided with a ring platform, and the position of the ring platform corresponds to the position of the inner ring (3).

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