Water outlet tail plug of flush valve

Abstract

The utility model discloses a flush valve water outlet tail plug which comprises a tail plug body, a sealing sleeve and a nut, the tail plug body is of a hollow structure and comprises a cylindrical upper connecting part and a lower mounting part with taper on the side face, the outer diameter of the lower mounting part is gradually increased from top to bottom, the upper connecting part is provided with external threads, and the sealing sleeve is sleeved with the nut. A material blocking part is arranged on the inner wall of the upper connecting part; the sealing sleeve is tubular, and the tail plug body is sleeved with the sealing sleeve; the nut is arranged above the sealing sleeve and is in threaded connection with the upper connecting part; the nut moves downwards and extrudes the sealing sleeve, so that the sealing sleeve moves downwards along the outer surface of the tail plug body, the sealing sleeve is gradually expanded along the lower mounting part, the sealing sleeve is tightly attached to the lower mounting part until the bottom of the sealing sleeve is tightly attached to the bottom surface of the mounting groove for sealing, and the contact part of the lower mounting part of the tail plug body and the mounting groove is completely wrapped by the sealing sleeve; therefore, the sealing effect is achieved.

Description

Technical Field

[0001] The utility model relates to an improved invention of a flushing valve, in particular to a water outlet tail plug of the flushing valve. Background Art

[0002] The water outlet pipe of the flush valve is sealed with the water inlet installation groove of the toilet through the water outlet tail plug. During installation, the water outlet tail plug is first placed in the installation groove of the water inlet, and the water outlet tail plug seals the water inlet, and then the water outlet pipe of the flush valve is connected to the water outlet tail plug; when the water inlet leaks, the water outlet tail plug is replaced. The existing water outlet tail plug mainly has the problems of unstable installation and poor sealing effect, which leads to frequent water leakage at the water inlet of the toilet. Summary of the invention

[0003] In view of the technical problems existing in the background technology, the technical problem solved by the utility model is to provide a flushing valve water outlet tail plug with stable installation and good sealing effect.

[0004] In order to solve the above technical problems, the utility model adopts the following technical solution: the water outlet tail plug of the flushing valve is characterized by comprising a tail plug body, a sealing sleeve and a nut,

[0005] The tail plug body is a hollow structure, which includes a cylindrical upper connecting portion and a lower mounting portion with a tapered side, the outer diameter of the lower mounting portion gradually increases from top to bottom, the upper connecting portion is provided with an external thread, and the inner wall of the upper connecting portion is provided with a material stopper;

[0006] The sealing sleeve is tubular and is arranged outside the tail plug body;

[0007] A nut, which is arranged above the sealing sleeve and is threadedly connected to the upper connecting part;

[0008] The nut moves downward and squeezes the sealing sleeve, so that the sealing sleeve moves downward along the outer surface of the tail plug body.

[0009] The utility model is placed in the water inlet mounting groove of the toilet, the bottom outer diameter of the lower mounting part is large, it contacts with the bottom surface of the mounting groove, and has good stability. The nut is rotated to move it downward relative to the tail plug body, and the nut pushes the sealing sleeve to move downward along the outer surface of the tail plug body. The sealing sleeve is gradually expanded at the lower mounting part, and the sealing sleeve is tightly fitted with the lower mounting part, and until the bottom of the sealing sleeve is tightly sealed with the bottom surface of the mounting groove, the contact part between the lower mounting part of the tail plug body and the mounting groove is completely covered by the sealing sleeve, thereby achieving a sealing effect.

[0010] Preferably, the top of the sealing sleeve extends outwardly to form an extrusion flange, which can increase the force-bearing area, and the nut can more easily push the sealing sleeve downward.

[0011] Preferably, a metal gasket is provided between the nut and the sealing sleeve to prevent the top of the sealing sleeve from twisting. When the nut is rotated, the friction between the nut and the metal gasket is small, and the metal gasket will not rotate with the nut, thereby preventing the sealing sleeve from twisting. In addition, the metal gasket can increase its contact area with the sealing sleeve, making it easier to push the sealing sleeve downward.

[0012] Preferably, the side surface of the lower mounting portion is a smooth surface, so that the sealing sleeve fits more closely with the lower mounting portion and has a better sealing effect.

[0013] Preferably, the material blocking member is at least two material blocking blocks. The material blocking member blocks the water outlet pipe of the flushing valve to limit the depth of the water outlet pipe extending therein.

[0014] Preferably, the tail plug body is of an integrated design, which enables the upper connecting portion and the lower mounting portion to be seamlessly connected and avoids leakage at the connection between the two. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional diagram of the utility model.

[0016] Figure 2 It is a cross-sectional view of the utility model.

[0017] Figure 3 It is a schematic diagram of the utility model installed in the installation groove. DETAILED DESCRIPTION

[0018] The following describes the details and working principle of the implementation mode and embodiment of the utility model in conjunction with the accompanying drawings. This type of flush valve water outlet tail plug includes a tail plug body, a sealing sleeve 5 and a nut 1. The tail plug body is a hollow structure. The tail plug body includes a cylindrical upper connecting portion 2 and a lower mounting portion 7 with a taper on the side. The tail plug body is preferably designed as an integrated design. The integrated design can make the upper connecting portion 2 and the lower mounting portion 7 seamlessly connected to avoid leakage at the connection between the two. The outer diameter of the lower mounting portion 7 gradually increases from top to bottom, and the upper connecting portion 2 is consistent with the outer diameter of the top of the lower mounting portion 7. The upper connecting portion 2 is provided with an external thread, and the inner wall of the upper connecting portion is provided with a material stopper 6. The material stopper blocks the flush valve outlet pipe 9 that extends in, limits the depth of the outlet pipe, and avoids the outlet pipe from being too close to the bottom surface 11 of the mounting groove of the water inlet. In the figure, the material stopper 6 is two symmetrically arranged material blocks, and the material stopper blocks use less material, have low cost, and occupy little space. The sealing sleeve 5 is tubular, and the sealing sleeve is arranged outside the tail plug body. The nut 1 is arranged above the sealing sleeve and is threadedly connected with the upper connecting part 2. The nut 1 rotates and moves downward relative to the tail plug body. The nut squeezes the sealing sleeve 5, so that the sealing sleeve moves downward along the outer surface of the tail plug body. If the nut 1 is in direct contact with the sealing sleeve 5, the friction between the two is large, and the rotation of the nut may drive the sealing sleeve to rotate, which is easy to cause damage to the sealing sleeve. To avoid this situation, a metal gasket 3 is provided between the nut 1 and the sealing sleeve 5 to prevent the top of the sealing sleeve from twisting. The metal gasket is not tight and has a larger contact area with the sealing sleeve. Moreover, the friction between the nut 1 and the metal gasket 3 is small, and the rotation of the nut will not drive the metal gasket to rotate, thereby avoiding the twisting of the sealing sleeve 5; the top of the sealing sleeve extends outwardly to the circumference to squeeze the flange 4, and the squeeze flange can increase the force-bearing area. The metal gasket 3 and the squeeze flange 4 fit together, which makes it easier to push the sealing sleeve downward.

[0019] During installation, the utility model is placed in the water inlet installation groove 10 of the toilet, the lower installation part 7 of the tail plug body contacts the bottom surface 11 of the installation groove, the nut 1 is rotated to make it move downward relative to the tail plug body, the nut pushes the sealing sleeve 5 to move downward along the outer surface of the tail plug body, and the sealing sleeve is gradually opened at the lower installation part 7, so that the sealing sleeve and the lower installation part are tightly fitted, and the side surface of the lower installation part is preferably a smooth surface, so that the sealing sleeve and the lower installation part are more tightly fitted, and the sealing effect is better; the bottom of the sealing sleeve 5 is tightly sealed with the bottom surface 11 of the installation groove through the lower installation part, and the sealing sleeve completely covers the contact part between the lower installation part 7 of the tail plug body and the bottom surface of the installation groove, so that the water inlet of the toilet will not leak. After the installation of the utility model is completed, the outlet pipe 9 of the flush valve is inserted into the upper connecting part 2 until it is blocked by the material blocking block 6, and finally the flush valve is sealed and connected to the upper connecting part through the connector provided by the flush valve. The utility model is easy and quick to install, and has a good sealing effect.

Claims

1. A flushing valve water outlet tail plug, characterized in that: It includes tail plug body, sealing sleeve and nut. The tail plug body is a hollow structure, comprising a cylindrical upper connecting portion and a lower mounting portion with a tapered side, wherein the outer diameter of the lower mounting portion gradually increases from the upper portion to the lower portion, the upper connecting portion is provided with an external thread, and the inner wall of the upper connecting portion is provided with a material stopper; The sealing sleeve is tubular and is arranged outside the tail plug body; A nut, which is arranged above the sealing sleeve and is threadedly connected to the upper connecting part; The nut moves downward and squeezes the sealing sleeve, so that the sealing sleeve moves downward along the outer surface of the tail plug body.

2. The flush valve water outlet tail plug according to claim 1, characterized in that: The top of the sealing sleeve extends toward the outer circumference to form an extrusion flange.

3. The flush valve water outlet tail plug according to claim 1 or 2, characterized in that: A metal gasket is arranged between the nut and the sealing sleeve to prevent the top of the sealing sleeve from twisting.

4. The flush valve water outlet tail plug according to claim 1, characterized in that: The side surface of the lower mounting portion is a smooth surface.

5. The flush valve water outlet tail plug according to claim 1, characterized in that: The material blocking member is at least two material blocking blocks.

6. The flush valve water outlet tail plug according to claim 1, characterized in that: The tail plug body is designed as an integrated whole.

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