Water pipe fitting and in-pipe valve body mounting structure

Abstract

The utility model discloses a water pipe fitting and an in-pipe valve body installation structure, a pipe fitting body is provided with a water inlet end and a water outlet end, and an inner cavity of the water outlet end is provided with a first internal thread used for being connected with an external valve body; a second internal thread used for being connected with an in-pipe valve body is arranged in an inner cavity of the water outlet end on the inner side of the first internal thread. The second internal thread and the first internal thread are coaxially arranged, and the major diameter of the second internal thread is smaller than the minor diameter of the first internal thread. Compared with the prior art, due to the fact that the independent second internal threads are arranged, occupied first internal threads used for being connected with external valve bodies such as an angle valve and a faucet are reduced, stability of connection between the external valve bodies and the first internal threads is guaranteed, and risks of loosening and water leakage are reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to kitchen and bath technical field, concretely relates to a water pipe fitting and pipe valve body mounting structure. BACKGROUND

[0002] The inventor has developed a water stop valve product, such as CN221463012U, which enables people to install a water stop valve in a water supply pipe joint, thereby achieving installation and dismounting of a faucet and a corner valve without closing a master valve, and is very convenient to use. An explosion-proof valve product can also be installed in the water supply pipe joint to achieve automatic water stop when the corner valve bursts and avoid water flooding accidents.

[0003] However, whether it is a water stop valve or an explosion-proof valve, the pipe valve body is installed in the water supply pipe joint, the outer thread of the pipe valve body occupies the original internal thread of the pipe joint for connecting the corner valve, the internal thread length for connecting the corner valve is shortened, the connection strength of the external valve body such as the corner valve (or faucet) is insufficient, and there is a risk of loosening and water leakage. Moreover, the axial length of the outer thread of the pipe valve body cannot be too long, which also affects the connection firmness of the pipe valve body itself.

[0004] In view of the above defects in the prior art, the inventor has conducted in-depth research and thus has developed the present case. CONTENT OF THE UTILITY MODEL

[0005] The main purpose of the utility model is to provide a water pipe fitting and pipe valve body mounting structure, which solves the problem of insufficient thread connection length of the corner valve (or faucet) after the pipe valve body is installed.

[0006] In order to achieve the above purpose, the solution of the utility model is as follows:

[0007] A water pipe fitting, comprising a pipe fitting body, the pipe fitting body having a water inlet end and a water outlet end, an inner cavity of the water outlet end being provided with a first internal thread for connecting an external valve body; an inner cavity of the water outlet end on the first internal thread side being provided with a second internal thread for connecting a pipe valve body; the second internal thread being coaxially arranged with the first internal thread, and the large diameter of the second internal thread being smaller than the small diameter of the first internal thread.

[0008] Further, the first internal thread extends to the outer edge of the water outlet end.

[0009] Further, the pipe fitting body comprises an inlay body and an outer pipe body, the inlay body being embedded in the outer pipe body; the first internal thread and the second internal thread being formed on the inner cavity inner wall of the inlay body.

[0010] Further, the inlay body is made of metal material, and the outer pipe body is made of plastic material; the outer pipe body is integrally injection molded on the outer side of the inlay body.

[0011] Further, the pipe body is made of metal material, and a third internal thread is formed in the water inlet end of the pipe body or a first external thread is formed on the water inlet end.

[0012] Further, the pipe body is linear or L-shaped.

[0013] Further, the inner end of the first internal thread is connected with the outer end of the second internal thread, and a stepped surface is formed at the connection.

[0014] A pipe-in valve body mounting structure, comprising a pipe-in valve body and the water pipe fitting, the pipe-in valve body has a water inlet side and a water outlet side, an outer wall of the pipe-in valve body is formed with a second external thread and an outer sealing ring, the second external thread is arranged close to the water inlet side, and the outer sealing ring is located between the second external thread and the water outlet side; the second external thread is threadedly connected with the second internal thread.

[0015] Further, the inner end of the first internal thread is connected with the outer end of the second internal thread, and a stepped surface is formed at the connection; and the outer sealing ring is abutted and sealed on the stepped surface.

[0016] With the above structure, the water pipe fitting and the pipe-in valve body mounting structure have at least the following beneficial effects:

[0017] I. By separately arranging the second internal thread for connecting the pipe-in valve body on the inner side of the first internal thread, the length of the first internal thread is reduced, so that the threaded pipe section of the external valve body can be firmly connected with the first internal thread, and the probability of loosening and water leakage is reduced; and the length of the second internal thread can be set according to the required depth, so as to firmly connect the second external thread of the pipe-in valve body.

[0018] II. The first internal thread and the second internal thread are connected through the stepped surface, which not only makes the structure more compact, but also forms a sealing surface for the abutment of the outer sealing ring, so that the pipe-in valve body can better play its own functional effect and avoid water leakage.

[0019] Compared with the prior art, by arranging the independent second internal thread, the first internal thread originally used for connecting the external valve body such as the angle valve and the faucet is reduced, so as to ensure the stability of the connection between the external valve body and the first internal thread and reduce the risk of loosening and water leakage. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a sectional view of the pipe fitting of the first embodiment.

[0021] Figure 2 It is a sectional view of the pipe fitting of the first embodiment.

[0022] Figure 3 The schematic diagram of the sectional structure of the pipe fitting of the second embodiment.

[0023] Figure 4 The schematic diagram of the sectional structure of the pipe fitting of the second embodiment.

[0024] Figure 5 The schematic diagram of the sectional structure of the pipe fitting of the third embodiment.

[0025] Figure 6 The schematic diagram of the sectional structure of the pipe fitting of the third embodiment.

[0026] Figure 7 The sectional view of the pipe fitting of the first embodiment in use (with an explosion-proof valve installed).

[0027] Figure 8 The sectional view of the pipe fitting of the second embodiment in use (with an explosion-proof valve installed).

[0028] Figure 9 The sectional view of the pipe fitting of the third embodiment in use (with a stop valve installed).

[0029] In the drawings:

[0030] Pipe fitting body 1; inner insert 11; outer pipe body 12; water inlet end 13; water outlet end 14; first internal thread 21; second internal thread 22; stepped surface 23; third internal thread 24; first external thread 25; explosion-proof valve 31; stop valve 32; pipe inner valve body 33; outer sealing ring 34; second external thread 35. DETAILED DESCRIPTION

[0031] In order to further explain the technical scheme of the utility model, the utility model will be described in detail below through specific embodiments.

[0032] As shown in Figures 1 to 9 The utility model relates to a water pipe fitting, which comprises a pipe fitting body 1, the pipe fitting body 1 has a water inlet end 13 and a water outlet end 14, the inner cavity of the water outlet end 14 is provided with a first internal thread 21 for connecting an external valve body; the water outlet end inner cavity on the inner side of the first internal thread 21 is provided with a second internal thread 22 for connecting a pipe inner valve body 33; the second internal thread 22 is coaxially arranged with the first internal thread 21, and the large diameter of the second internal thread 22 is smaller than the small diameter of the first internal thread 21.

[0033] Thus, the water pipe fitting and the pipe valve body mounting structure, by separately setting a second internal thread 22 for connecting the pipe valve body 33 on the inner side of the first internal thread 21, the pipe valve body 33 passes through the first internal thread 21 from the outside to the inside, reduces the occupation of the thread length of the first internal thread 21, so that the threaded pipe section of the external valve body can be firmly connected with the first internal thread 21, and the probability of loosening and water leakage is reduced; and the length of the second internal thread 22 can be set according to the required depth, so that the second external thread 35 of the pipe valve body 33 can be firmly connected. Preferably, the outer end of the first internal thread 21 extends to the outer edge of the water outlet end 14. Thus, the external valve body (such as a faucet or an angle valve) is connected.

[0034] As shown in Figures 1 to 3 The pipe fitting body 1 includes an inlay body 11 and an outer pipe body 12, the inlay body 11 is inlaid in the outer pipe body 12, and the first internal thread 21 and the second internal thread 22 are formed on the inner cavity inner wall of the inlay body 11. The inlay body 11 made of metal has the characteristics of convenient processing of threads and sufficient connection strength. The outer pipe body 12 can be injection molded with plastic, which is convenient for forming modeling, such as forming a straight line (a straight line) or an L-shaped pipe fitting. That is, the inlay body 11 is made of metal, the outer pipe body 12 is made of plastic, and the outer pipe body 12 is integrally injection molded on the outer side of the inlay body 11.

[0035] As shown in Figure 4 and Figures 6-7 The pipe fitting body 1 is made of metal, and the third internal thread 24 is formed in the water inlet end 13 of the pipe fitting body 1 or the first external thread 25 is formed outside the water inlet end 13. Preferably, the pipe fitting body 1 is straight or L-shaped. Thus, the pipe fitting body 1 can be used as an external adapter, and after connecting the pipe fitting body 1 on the water supply pipe network, an angle valve or a faucet is connected.

[0036] Preferably, the inner end of the first internal thread 21 is connected with the outer end of the second internal thread 22, and a stepped surface 23 is formed at the connection. The first internal thread 21 and the second internal thread 22 are connected by the stepped surface 23, not only making the structure more compact, but also forming a sealing surface for the outer sealing ring to abut, so that the pipe valve body can better play its own function effect and avoid water leakage.

[0037] This utility model also provides an installation structure for an in-pipe valve body 33, including an in-pipe valve body 33 and the aforementioned pipe fitting. The in-pipe valve body 33 has an inlet side and an outlet side. A second external thread 35 and an outer sealing ring are formed on the outer wall of the in-pipe valve body 33. The second external thread 35 is located near the inlet side, and the outer sealing ring 34 is located between the second external thread 35 and the outlet side. The second external thread 35 is threadedly connected to the second internal thread 22. The inner end of the first internal thread 21 is connected to the outer end of the second internal thread 22, and a stepped surface 23 is formed at the connection. The outer sealing ring abuts and seals against the stepped surface 23. Depending on the valve core installed, the in-pipe valve body 33 can be an explosion-proof valve 31 (e.g., Figure 7 and Figure 8 (as shown) or stop valve 32 (as shown) Figure 9 (As shown).

[0038] The first internal thread 21 and the second internal thread 22 are connected by a stepped surface 23, which not only makes the structure more compact, but also the stepped surface 23 forms a sealing surface for the outer sealing ring 34 to abut, so that the valve body 33 inside the pipe can better perform its own function and avoid water leakage.

[0039] Compared with the prior art, this utility model reduces the occupation of the original first internal thread 21 used for connecting with external valve bodies (not shown in the figure) such as angle valves and faucets by setting an independent second internal thread 22, thus ensuring the stability of the connection between the external valve body and the first internal thread 21 and reducing the risk of loosening and leakage.

[0040] The above embodiments and figures are not intended to limit the product form and style of this utility model. Any appropriate changes or modifications made by those skilled in the art should be considered as not departing from the patent scope of this utility model.

Claims

1. A water pipe fitting comprising a fitting body having a water inlet end and a water outlet end, the inner cavity of the water outlet end being provided with a first internal thread for connecting an external valve body; characterized in that, The water outlet end inner cavity of the first inner thread inner side is provided with a second inner thread for connecting a pipe inner valve body; the second inner thread is coaxially arranged with the first inner thread, and the large diameter of the second inner thread is smaller than the small diameter of the first inner thread.

2. A water pipe according to claim 1, wherein The first inner thread outer end extends to the outer edge of the water outlet end.

3. A water pipe according to claim 1, wherein The pipe body comprises an inner body and an outer pipe body, the inner body is embedded in the outer pipe body, and the first inner thread and the second inner thread are formed on the inner cavity inner wall of the inner body.

4. A water pipe according to claim 3, wherein The inner body is made of metal material, and the outer pipe body is made of plastic material; the outer pipe body is integrally injection molded on the outer side of the inner body.

5. A water pipe according to claim 1, wherein The pipe body is made of metal material, and the third inner thread is formed in the water inlet end or the first outer thread is formed outside the water inlet end.

6. A water pipe according to claim 1, wherein The pipe body is linear or L-shaped.

7. A water pipe according to any one of claims 1-6, characterized in that The inner end of the first inner thread is connected with the outer end of the second inner thread, and a stepped surface is formed at the connection.

8. A structure for mounting a valve body in a pipe, characterized by The pipe body is made of metal material, and the third inner thread is formed in the water inlet end or the first outer thread is formed outside the water inlet end.

9. A valve-in-tube mounting structure as claimed in claim 8, wherein, The pipe body is linear or L-shaped. The inner end of the first inner thread is connected with the outer end of the second inner thread, and a stepped surface is formed at the connection. The outer sealing ring is abutted and sealed on the stepped surface.

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