Multifunctional water pipe elbow with replaceable pipe head

Abstract

A multifunctional water pipe elbow with a replaceable pipe head comprises an elbow body, the elbow body comprises a water inlet and a water outlet which are formed in the two ends, and a sleeving column used for being connected with an external water pipe in a sleeving mode is arranged at the water inlet; the elbow further comprises a replaceable pipe head, the two ends of the replaceable pipe head are a communicating end and a pipe connecting end respectively, a connecting structure is further arranged between the communicating end of the replaceable pipe head and the elbow body, the replaceable pipe head can be detachably connected and communicated with the elbow body through the connecting structure, and the pipe connecting end can be connected with an external water pipe. The connecting structure comprises a connecting nut which is rotatably connected to the replaceable pipe head and a connecting thread which is arranged on the peripheral surface of the water outlet of the elbow body; the replaceable pipe head is arranged at the water outlet of the elbow body, it is ensured that the elbow body can be suitable for various connection modes, the connection modes do not need to be entangled when the elbow is purchased, and the whole elbow body does not need to be detached from the wall face even if a pipeline is adjusted in the follow-up process.

Description

Technical Field

[0001] This utility model relates to the field of water pipe elbows, specifically to a multifunctional water pipe elbow with replaceable pipe ends. Background Technology

[0002] In a piping system, an elbow is a fitting that changes the direction of the pipe; and in existing houses, water pipes are laid close to the wall, so both the water pipes and the fittings and elbows used to connect them need to be installed on the wall.

[0003] In existing technologies, pipe bends are generally fixed to the wall with bolts. The structure used involves a mounting base protruding from the back of the pipe bend, with bolts passing through the mounting base and tightened to the wall to achieve fixed installation of the pipe bend. Alternatively, a threaded post can be directly protruding from the back of the bend, with the threaded post engaging with the wall to achieve installation of the bend.

[0004] For example, Chinese patent number ZL202221605495.7 discloses: "A type of internal thread elbow with a mounting base, designed to solve the problem that existing internal thread elbows do not form a stable connection with the wall, resulting in poor stability when water pipes are laid along the wall. This utility model solves the above-mentioned technical problem through the following technical solution: including: a first pipe body and a second pipe body, the first pipe body and the second pipe body are connected, one end of the first pipe body is connected to a mounting base, and the mounting base is provided with a mounting hole. This utility model provides a mounting base at the end of the internal thread elbow with a mounting base, and provides a mounting hole on the mounting base, so that it can be used with screws or other connecting parts through the mounting hole, and can be firmly fixed to the side of the wall, so that the internal thread elbow with a mounting base forms a stable connection with the wall, thereby enhancing the stability of water pipes when laid along the wall."

[0005] However, including the solutions described in the aforementioned patents, existing wall-mounted water pipe elbows on the market all have a problem: because the structure at the end of the elbow body is fixed, and existing water pipes have multiple connection methods, including at least heat fusion splicing, internal thread connection, and external thread connection, the corresponding elbow needs to be selected during pipe laying to achieve the water pipe connection. However, in actual use, sometimes the wrong elbow is selected or the pipeline needs to be changed and re-laid, making the original elbow unusable and requiring the purchase and replacement of a new elbow. Especially when the pipeline is re-laid, it is often necessary to remove the original elbow from the wall and install the new elbow. However, repeatedly removing and installing the elbow on the wall is not only troublesome to operate, but also causes serious damage to the wall. Summary of the Invention

[0006] To overcome the shortcomings of existing technologies that require the removal and replacement of existing pipe elbows with different connection methods during pipeline installation, which leads to cumbersome operation and damage to the wall, this utility model provides a multi-functional pipe elbow with replaceable pipe ends.

[0007] The technical solution of this utility model to solve its technical problem is: a multi-functional water pipe elbow with replaceable pipe head, comprising:

[0008] The elbow body includes an inlet and an outlet at both ends, and the inlet is provided with a connecting post for connecting an external water pipe.

[0009] It also includes;

[0010] The replaceable pipe head has a connecting end and a connecting end at its two ends. A connecting structure is provided between the connecting end of the replaceable pipe head and the elbow body. The replaceable pipe head can be detachably connected and communicated with the elbow body through the connecting structure. The connecting end can be connected to an external water pipe.

[0011] The connection structure includes a connecting nut rotatably connected to the replaceable pipe head, and a connecting thread formed on the outer circumferential surface of the elbow body at the outlet. The connecting nut can be translated along the connecting end of the replaceable pipe head. A limiting rib is also protruding at the connecting end of the replaceable pipe head, and a retaining rib is also protruding on the inner circumferential surface of the connecting nut. When the connecting nut is tightened onto the elbow body through the threaded engagement, the retaining rib can act on the limiting rib to make it abut against the end of the elbow body, thereby fixing the position of the replaceable pipe head relative to the elbow body.

[0012] Furthermore, the limiting structure for the movement of the connecting nut on the replaceable tube head is further provided with a ring of moving grooves on the outer circumferential surface of the connecting end of the replaceable tube head. The abutting rib of the connecting nut is inserted into the moving groove, and when the connecting nut moves relative to the replaceable tube head, the abutting rib can also move along the moving groove.

[0013] The specific structure of the elbow body further includes an inlet section, an outlet section, and a bent section connecting the two. The inlet is located on the free end of the inlet section, and the outlet is located on the free end of the outlet section.

[0014] Furthermore, the wall mounting structure on the elbow body includes a mounting plate protruding from the rear side of the bent section. The rear side of the mounting plate has a fitting plane for forming a fit with the wall surface, and the mounting plate also has through mounting holes that pass through it. Bolts can pass through the mounting holes and be tightened onto the wall surface to install the elbow body onto the wall surface.

[0015] Further, the elbow body has a connecting thread with a protruding connecting post at the free end of the outlet section. The connecting thread is formed on the outer circumferential surface of the connecting post. The connecting nut is fitted onto the connecting post to connect with the elbow body. When the connecting nut is tightened onto the connecting post, the limiting rib is clamped between the abutment rib and the end face of the connecting post.

[0016] Furthermore, the sealing structure between the elbow body and the replaceable pipe head includes a sealing ring located between the end face of the connecting column and the limiting rib, so that the sealing ring can seal between the elbow body and the replaceable pipe head.

[0017] Further, the specific structure of the sleeve post on the elbow body is further described, wherein several sealing grooves are formed on the outer circumferential surface of the sleeve post of the elbow body, and a ring of blocking ribs is also protruding on the outer circumferential surface of the sleeve post. When the external water pipe is sleeved on the sleeve post, the inner wall of the external water pipe can form a sealing fit with the sealing grooves, and the blocking ribs can form an interference fit with the end of the external water pipe to prevent the external water pipe from being over-sleeved.

[0018] Furthermore, the specific setting method and types of the replaceable pipe head are as follows: there are several types of replaceable pipe heads, and the structures at the pipe ends of the various replaceable pipe heads are set differently. The replaceable pipe head includes at least a first pipe head, a second pipe head, and a third pipe head.

[0019] The first pipe head has a protruding sleeve post at the connecting end for connecting an external water pipe;

[0020] An external thread is provided on the outer circumferential surface of the connecting end of the second pipe head;

[0021] An internal thread is formed on the inner circumferential surface of the connecting end of the third pipe head.

[0022] The installation method of this utility model:

[0023] First, align the mating surface of the mounting plate on the elbow body with the wall surface, and then attach the mating surface to the wall. After adjusting the position of the elbow body, pass the bolts through the mounting holes on the mounting plate and tighten them to the wall to fix the elbow body to the wall. Then, heat-melt the end of the inlet pipe and attach it to the sleeve post of the elbow body until the end of the inlet pipe forms an interference fit with the blocking rib. After the end of the inlet pipe cools down, the inner wall of the inlet pipe will be able to seal in the sealing groove of the sleeve post. Next, select the corresponding replacement pipe head according to the connection method at the outlet pipe. Then, align the connecting nut at the connecting end of the selected replacement pipe head with the connecting post on the elbow body, and then tighten the connecting nut to the connecting post so that the limiting rib on the replacement pipe head is clamped between the abutment rib and the end face of the connecting post. At this point, the replacement pipe head is also installed on the elbow body. Finally, connect the outlet pipe to the connecting end of the replacement pipe head according to the corresponding connection method.

[0024] The beneficial effects of this utility model are as follows:

[0025] 1. Replaceable pipe heads are provided at the outlet of the elbow body, so that when laying the pipeline, the corresponding replacement pipe head can be selected according to the connection method required by the outlet pipe. This ensures that the elbow body can be used for multiple connection methods, so that there is no need to worry about the connection method when purchasing elbows. Furthermore, even if the pipeline is adjusted later, there is no need to remove the entire elbow body from the wall, which can improve the pipeline laying efficiency and effectively avoid damage to the wall.

[0026] 2. The connection between the elbow body and the replaceable pipe head is simple. The two can be connected or separated by tightening the connecting nut, which further simplifies the operation during pipeline laying.

[0027] 3. An installation plate is provided on the rear side of the elbow body to facilitate the installation of the elbow body on the wall. A mating surface is provided on the rear side of the installation plate to achieve a mating with the wall, which can further prevent the elbow body from damaging the wall.

[0028] 4. A sealing ring is installed between the elbow body and the replaceable pipe end to further improve the sealing performance after the two are connected. Attached Figure Description

[0029] Figure 1 This is a structural schematic diagram of Embodiment 1 of the present invention.

[0030] Figure 2 This is an exploded view of Embodiment 1 of this utility model.

[0031] Figure 3 This is a cross-sectional view of Embodiment 1 of this utility model.

[0032] Figure 4This is a schematic diagram of the elbow body in Embodiment 1 of this utility model.

[0033] Figure 5 This is a structural schematic diagram of Embodiment 2 of this utility model.

[0034] Figure 6 This is a schematic diagram of the replaceable elbow in Embodiment 2 of this utility model.

[0035] Figure 7 This is a structural schematic diagram of Embodiment 3 of this utility model.

[0036] Figure 8 This is a schematic diagram of the replaceable elbow in Embodiment 3 of this utility model.

[0037] The following are the labeling elements in the diagram: 1. Elbow body; 2. Inlet; 3. Outlet; 4. Connecting post; 5. Replaceable pipe head; 6. Connecting end; 7. Connecting pipe end; 8. Connecting nut; 9. Connecting thread; 10. Limiting rib; 11. Abutment rib; 12. Moving groove; 13. Inlet section; 14. Outlet section; 15. Bending section; 16. Mounting plate; 17. Fitting plane; 18. Mounting hole; 19. Connecting post; 20. Sealing ring; 21. Sealing groove; 22. Blocking rib; 23. First pipe head; 24. Second pipe head; 25. Third pipe head. Detailed Implementation

[0038] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0039] It should be understood that although the terms upper, middle, lower, top, one end, etc., appear in this document to describe various elements, these elements are not limited by these terms. These terms are only used to distinguish the elements from each other for ease of understanding, and are not used to define any directional or sequential restrictions.

[0040] Example 1

[0041] Combination Figures 1 to 4The diagram illustrates a multi-functional water pipe elbow with replaceable pipe ends, comprising an elbow body 1, which includes an inlet 2 and an outlet 3 at both ends. The inlet 2 is provided with a connecting post 4 for connecting to an external water pipe. It also includes a replaceable pipe end 5, with a connecting end 6 and a connecting pipe end 7 at its two ends. A connecting structure is provided between the connecting end 6 of the replaceable pipe end 5 and the elbow body 1. The replaceable pipe end 5 can be detachably connected to and communicate with the elbow body 1 through the connecting structure. The connecting pipe end 7 can be connected to an external water pipe. The connecting structure includes a rotatable connection to the replaceable pipe end 5. The connecting nut 8 on the replaceable pipe head 5 and the connecting thread 9 on the outer circumferential surface of the outlet 3 of the elbow body 1 are provided. The connecting nut 8 can be translated along the connecting end 6 of the replaceable pipe head 5. A limiting rib 10 is also protruding at the end of the connecting end 6 of the replaceable pipe head 5, and a retaining rib 11 is also protruding on the inner circumferential surface of the connecting nut 8. When the connecting nut 8 is tightened onto the elbow body 1 by thread engagement, the retaining rib 11 can act on the limiting rib 10 to make it abut against the end of the elbow body 1, thereby fixing the position of the replaceable pipe head 5 relative to the elbow body 1.

[0042] Combination Figure 2 and Figure 3 As shown, in this embodiment, a moving groove 12 is also recessed on the outer peripheral surface of the connecting end 6 of the replaceable tube head 5. The abutting rib 11 of the connecting nut 8 is inserted into the moving groove 12, and when the connecting nut 8 moves relative to the replaceable tube head 5, the abutting rib 11 can also move along the moving groove 12.

[0043] Combination Figures 1 to 4 As shown, in this embodiment, the elbow body 1 includes an inlet section 13, an outlet section 14, and a bending section 15 connecting the two. The inlet 2 is located on the free end of the inlet section 13, and the outlet 3 is located on the free end of the outlet section 14.

[0044] Combination Figures 1 to 4 As shown, in this embodiment, a mounting plate 16 is also provided on the rear side of the bending section 15. The rear side of the mounting plate 16 is provided with a fitting plane 17 for fitting with the wall surface. The mounting plate 16 is also provided with a through mounting hole 18 that passes through it. Bolts can pass through the mounting hole 18 and be tightened on the wall surface to install the elbow body 1 on the wall surface.

[0045] Combination Figures 2 to 4As shown, in this embodiment, a connecting post 19 is protruding at the free end of the outlet section 14 on the elbow body 1. The connecting thread 9 is formed on the outer circumferential surface of the connecting post 19. The connecting nut 8 is fitted onto the connecting post 19 to achieve connection with the elbow body 1. When the connecting nut 8 is tightened onto the connecting post 19, the limiting rib 10 is clamped between the abutment rib 11 and the end face of the connecting post 19.

[0046] Combination Figure 2 and Figure 3 As shown, the connection structure described in this embodiment also includes a sealing ring 20, which is located between the end face of the connecting column 19 and the limiting rib 10, so that the sealing ring 20 can seal between the elbow body 1 and the replaceable pipe head 5.

[0047] Combination Figures 1 to 4 As shown, in this embodiment, the outer circumferential surface of the elbow body 1's sleeve post 4 is provided with several sealing grooves 21, and the outer circumferential surface of the sleeve post 4 is also provided with a ring of blocking ribs 22. When the external water pipe is sleeved on the sleeve post 4, the inner wall of the external water pipe can form a sealing fit with the sealing grooves 21, and the blocking ribs 22 can form an interference fit with the end of the external water pipe to prevent the external water pipe from being over-sleeved.

[0048] Combination Figures 1 to 3 As shown, in this embodiment, the replaceable pipe head 5 is set as the first pipe head 23; the connecting end 7 of the first pipe head 23 is provided with a sleeve post for connecting an external water pipe, so in this embodiment, the water outlet pipe can be heat-fused and connected to the connecting end 7 of the first pipe head 23.

[0049] The installation method in this embodiment:

[0050] First, align the mating surface 17 of the mounting plate 16 on the elbow body 1 with the wall surface, and then attach the mating surface 17 to the wall surface. After adjusting the position of the elbow body 1, pass the bolts through the mounting holes 18 on the mounting plate 16 and tighten the bolts to the wall surface to achieve fixed installation of the elbow body 1 on the wall surface. Then, heat-melt the end of the water inlet pipe and sleeve it onto the sleeve post 4 of the elbow body 1 until the end of the water inlet pipe forms an interference fit with the blocking rib 22. After the end of the water inlet pipe cools down, the inner wall of the water inlet pipe can seal against the sealing of the sleeve post 4. Inside the groove 21, the corresponding replaceable pipe head 5 can be selected according to the connection method at the outlet pipe. Then, align the connecting nut 8 at the connecting end 6 of the selected replaceable pipe head 5 with the connecting post 19 on the elbow body 1. Tighten the connecting nut 8 to the connecting post 19 so that the limiting rib 10 on the replaceable pipe head 5 is clamped between the abutment rib 11 and the end face of the connecting post 19. At this point, the replaceable pipe head 5 is also installed on the elbow body 1. Finally, connect the outlet pipe to the connecting end 7 of the replaceable pipe head 5 according to the corresponding connection method.

[0051] The advantages of this embodiment are: a replaceable pipe head is provided at the outlet of the elbow body of this product, which can ensure that this product is suitable for a variety of connection methods, and can also improve the laying efficiency and avoid damage to the wall when adjusting the pipeline later.

[0052] Example 2

[0053] Combination Figure 5 and Figure 6 As shown, the main difference between this embodiment and the first embodiment described above is that:

[0054] In this embodiment, the replaceable pipe head 5 is set as the second pipe head 24; an external thread is provided on the outer circumferential surface of the connecting end 7 of the second pipe head 24, so in this embodiment, the water outlet pipe can be connected to the connecting end 7 of the second pipe head 24 by means of thread engagement.

[0055] The advantage of this embodiment is that it provides another way to set up a replaceable pipe head, which further expands the connection methods between this product and the water outlet pipe.

[0056] In this embodiment, the remaining structures, methods, and advantages are consistent with those in Embodiment 1 above, and will not be repeated here.

[0057] Example 3

[0058] Combination Figure 7 and Figure 8 As shown, the main difference between this embodiment and the first embodiment described above is that:

[0059] In this embodiment, the replaceable pipe head 5 is set as the third pipe head 25; the inner circumferential surface of the connecting end 7 of the third pipe head 25 is provided with an internal thread, so in this embodiment, the water outlet pipe can be connected to the connecting end 7 of the third pipe head 25 by means of thread engagement.

[0060] The advantage of this embodiment is that it provides another way to set up a replaceable pipe head, which further expands the connection methods between this product and the water outlet pipe.

[0061] In this embodiment, the remaining structures, methods, and advantages are consistent with those in Embodiment 1 above, and will not be repeated here.

[0062] The above specific embodiments are merely explanations of the present utility model and are not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to the embodiments without contributing any inventive step, but such modifications are protected by patent law as long as they fall within the scope of the claims of the present utility model.

Claims

1. A multi-functional water pipe elbow with replaceable pipe ends, comprising: The elbow body (1) includes an inlet (2) and an outlet (3) at both ends, and the inlet (2) is provided with a connecting post (4) for connecting an external water pipe. Its features are, It also includes: The replaceable pipe head (5) has a connecting end (6) and a connecting pipe end (7) at its two ends. A connection structure is provided between the connecting end (6) of the replaceable pipe head (5) and the elbow body (1). The replaceable pipe head (5) can be detachably connected and communicated with the elbow body (1) through the connection structure. The connecting pipe end (7) can be connected to an external water pipe. The connection structure includes a connecting nut (8) rotatably connected to the replaceable pipe head (5) and a connecting thread (9) on the outer circumferential surface of the outlet (3) of the elbow body (1). The connecting nut (8) can be translated along the connecting end (6) of the replaceable pipe head (5). A limiting rib (10) is also protruding at the end of the connecting end (6) of the replaceable pipe head (5). A retaining rib (11) is also protruding on the inner circumferential surface of the connecting nut (8). When the connecting nut (8) is tightened onto the elbow body (1) through threaded engagement, the retaining rib (11) can act on the limiting rib (10) to make it abut against the end of the elbow body (1), thereby fixing the position of the replaceable pipe head (5) relative to the elbow body (1).

2. The multi-functional water pipe elbow with replaceable pipe ends according to claim 1, characterized in that: A movable groove (12) is recessed on the outer circumferential surface of the connecting end (6) of the replaceable pipe head (5). The abutting rib (11) of the connecting nut (8) is inserted into the movable groove (12). When the connecting nut (8) moves relative to the replaceable pipe head (5), the abutting rib (11) can also move along the movable groove (12).

3. The multi-functional water pipe elbow with replaceable pipe ends according to claim 1, characterized in that: The elbow body (1) includes an inlet section (13), an outlet section (14) and a bend section (15) connecting the two. The inlet (2) is located on the free end of the inlet section (13) and the outlet (3) is located on the free end of the outlet section (14).

4. A multi-functional water pipe elbow with replaceable pipe ends according to claim 3, characterized in that: A mounting plate (16) is also provided on the rear side of the bent section (15). The mounting plate (16) has a fitting surface (17) on the rear side for fitting with the wall surface. The mounting plate (16) also has a through mounting hole (18) that passes through it. Bolts can pass through the mounting hole (18) and be tightened on the wall surface to install the elbow body (1) on the wall surface.

5. A multi-functional water pipe elbow with replaceable pipe ends according to claim 3, characterized in that: A connecting post (19) is provided on the free end of the outlet section (14) of the elbow body (1). The connecting thread (9) is opened on the outer circumferential surface of the connecting post (19). The connecting nut (8) is fitted onto the connecting post (19) to achieve connection with the elbow body (1). When the connecting nut (8) is tightened on the connecting post (19), the limiting rib (10) is clamped between the abutment rib (11) and the end face of the connecting post (19).

6. A multi-functional water pipe elbow with replaceable pipe ends according to claim 5, characterized in that: The connection structure also includes a sealing ring (20), which is located between the end face of the connecting column (19) and the limiting rib (10) so that the sealing ring (20) can seal between the elbow body (1) and the replaceable pipe head (5).

7. A multi-functional water pipe elbow with replaceable pipe ends according to claim 1, characterized in that: The elbow body (1) has several sealing grooves (21) on its outer circumferential surface of the sleeve post (4), and a ring of blocking ribs (22) is also protruding on the outer circumferential surface of the sleeve post (4). When the external water pipe is sleeved on the sleeve post (4), the inner wall of the external water pipe can form a sealing fit with the sealing groove (21), and the blocking ribs (22) can form an interference fit with the end of the external water pipe to prevent the external water pipe from being over-sleeved.

8. A multi-functional water pipe elbow with replaceable pipe ends according to claim 1, characterized in that: The replaceable tube head (5) has several types, and the structure at the tube end (7) of each replaceable tube head (5) is arranged differently. The replaceable tube head (5) includes at least a first tube head (23), a second tube head (24) and a third tube head (25). The first pipe head (23) has a sleeve post protruding at the pipe end (7) for connecting an external water pipe; The second pipe head (24) has an external thread on its outer circumferential surface at the pipe end (7); An internal thread is provided on the inner circumferential surface of the connecting end (7) of the third pipe head (25).

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