Trap with adjustable water seal height

Abstract

The utility model relates to the technical field of building drainage pipe fittings, in particular to a trap with an adjustable water seal height, which comprises a blocking pipe, a trap main body and an elbow which are communicated in sequence, the blocking pipe is connected with a rotating body through threads, the rotating body is positioned above the trap main body, and the elbow is positioned above the trap main body. A rotating part is arranged at one end of the trap body in the circumferential direction, the rotating body is rotationally connected with the rotating part, the other end of the trap body is connected with the elbow, vertical movement of the blocking pipe is achieved in a spiral screwing-in mode, the purpose of adjusting the height of the water seal is achieved, and the water seal can be adjusted according to different water use working conditions and water use requirements. The position of the tail end of the blocking pipe is freely adjusted within a certain range, and free adjustment between the maximum value and the minimum value of the height of the water seal is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of building drainage pipe fittings, and more specifically, to a water trap with adjustable water seal height. Background Art

[0002] PVC water traps are widely used in PVC building drainage pipe systems. They use a U-shaped structure to form a water seal, which mainly blocks the dirty gas in the sewage pipe network from entering the room, protecting the living environment and health. Therefore, it is very important to maintain the water seal height of the water trap. GB 50015 and CECS172 both stipulate that the water seal height shall not be less than 50mm. However, many businesses in the market ignore the requirements of standards and specifications, and the water seal design of their products does not meet the standards. In addition, the water seal height is easily affected by the positive and negative pressure fluctuations of the pipe system during later use, causing the water seal to fail prematurely.

[0003] The prior art CN220318684U provides a trap with adjustable water seal height, including a trap body, an anti-slip seal, and an elbow. An extension section is connected to the trap body, and the extension section provides an adjustable stroke. The extension section cooperates with the anti-slip seal to achieve a detachable sealed connection with the elbow. A first limiting structure is provided on the extension section, and a second limiting structure is provided on the elbow. Through the simple cooperation of the first limiting structure and the second limiting structure in different states, the relative position of the trap and the elbow after assembly can be easily adjusted, thereby improving the convenience of adjusting the water seal height. However, in the above scheme, the number of limiting structures is limited, so that the relative position of the trap and the elbow after assembly is limited to a few positions, and the water seal height cannot be freely adjusted, which is not flexible enough. Utility Model Content

[0004] The purpose of the utility model is to overcome the deficiencies in the prior art and to provide a water trap with adjustable water seal height. The spiral screwing method is used to realize the up and down movement of the rotating body and the water trap body, thereby driving the up and down movement of the elbow to achieve the purpose of adjusting the water seal height. The position of the elbow can be arbitrarily adjusted within a certain range according to different water use conditions and water use requirements, thereby realizing free adjustment between the maximum and minimum values ​​of the water seal height.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0006] Provided is a water trap with adjustable water seal height, comprising a barrier tube, a water trap body and an elbow which are sequentially connected and arranged, wherein the barrier tube is threadedly connected to a rotating body, the rotating body is located above the water trap body, one end of the water trap body is circumferentially provided with a rotating part, the rotating body is rotatably connected to the rotating part, and the other end of the water trap body is connected to the elbow.

[0007] In the utility model, the water trap with adjustable water seal height is connected with the rotating body and the rotating part in rotation, so that the axial relative position of the water trap body and the rotating body is fixed. When adjusting the water seal height, the rotating body is rotated, and the rotating body drives the barrier tube to move up and down through the thread. The water seal height is the height difference between the inflection point of the lower wall of the elbow and the bottom of the barrier tube. When the barrier tube moves downward, the water seal height increases to the maximum value; when the barrier tube moves upward, the water seal height decreases to the minimum value. The water seal height can be adjusted to any value between the maximum value and the minimum value.

[0008] Furthermore, the inner surface of the rotating body is covered with internal threads, and the outer surface of the barrier tube is covered with external threads matching the internal threads, so that the range for adjusting the position of the rotating body is increased, and the range for adjusting the water seal height is increased.

[0009] Furthermore, a groove is circumferentially provided on the outer surface of the rotating body, and a first annular rib is provided on the inner side of the rotating part. The first annular rib is cooperatively connected with the groove to fix the axial relative position of the rotating body and the rotating part, thereby fixing the axial relative position of the water trap body.

[0010] Furthermore, a limiting platform is provided on the outer surface of the rotating body, and the limiting platform is located below the groove. A top end surface is provided on the top of one end of the water trap body connected to the rotating body, and the top end surface abuts against the limiting platform, which can limit the movement of the rotating body toward the bottom of the water trap body and prevent the rotating body from falling completely into the water trap body. There is no need to manually limit the position of the rotating body during installation, which is more convenient.

[0011] Furthermore, a second annular rib is provided on the inner side of the rotating part, and the second annular rib is located below the first annular rib. A first inclined surface is provided on the outer surface of the water trap body, and a second inclined surface is provided on the outer periphery of the second annular rib. The first inclined surface and the second inclined surface are fitted together, and the first inclined surface is directed upward, and the distance between the first inclined surface and the central axis of the water trap body gradually increases from bottom to top. Because the rotating part is axially fixedly connected to the rotating body, the second annular rib can limit the axial movement of the water trap body away from the rotating body. The first annular rib and the second annular rib work together to make the rotating body and the water trap body axially fixedly connected. When the rotating body rotates, the relative position of the rotating body and the water trap body remains unchanged, and the rotating body drives the barrier tube to move up and down relative to the water trap body through threaded cooperation.

[0012] Furthermore, a rotating clamping table is provided on the outer periphery of the rotating body for facilitating the rotating operation. The rotating clamping table is arranged on the outer surface of the rotating body. By rotating the rotating clamping table, the rotating body is driven to rotate, thereby adjusting the water seal height more conveniently.

[0013] Furthermore, the first socket and the spigot are respectively provided at both ends of the water trap body, and the first socket cooperates with the rotating body, and the second socket that cooperates with the spigot is provided on the elbow. The socket-spigot connection is easy to install and disassemble, and components of different specifications can be simply replaced to suit different scenarios, making it more flexible to use.

[0014] Furthermore, a supporting slope is provided on the inner surface of the first socket, and the distance between the supporting slope and the central axis of the water trap body gradually increases from bottom to top. A sealing ring is arranged on the supporting slope, and the bottom of the barrier tube is lower than the bottom of the rotating body. The sealing ring is sealed between the inner wall of the water trap body, the outer wall of the barrier tube and the bottom of the rotating body, thereby improving the sealing performance of the water trap and avoiding water leakage.

[0015] Furthermore, the sealing ring is provided with an upper surface and a lower surface, the lower surface abuts against the supporting inclined surface, and the upper surface abuts against the bottom end surface of the rotating body, so that the sealing ring fits tightly with the supporting inclined surface, the rotating body and the barrier tube, further improving the sealing performance.

[0016] Furthermore, the sealing ring is a rubber ring, and the volume of the cavity between the inner wall of the trap body, the outer wall of the barrier tube and the bottom of the rotating body is smaller than the volume of the sealing ring. The trap body, the outer wall of the barrier tube and the bottom of the rotating body squeeze the rubber sealing ring to eliminate gaps and improve sealing performance. The rubber ring has good mobility and adaptability, and a small friction coefficient with the moving parts, and can be used as a shaft seal.

[0017] Compared with the prior art, the utility model has the beneficial effect that the end position of the barrier pipe can be arbitrarily adjusted within a certain range according to different water use conditions and water use requirements, thereby achieving free adjustment between the maximum and minimum values ​​of the water seal height. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural exploded diagram of a water trap with adjustable water seal height according to the utility model;

[0019] Figure 2 It is a schematic structural diagram of the utility model of the water trap with adjustable water seal height when the water seal height is the maximum;

[0020] Figure 3 It is a schematic structural diagram of the utility model of the water trap with adjustable water seal height when the water seal height is the minimum;

[0021] Figure 4 It is a structural schematic diagram of the water trap body of the water trap with adjustable water seal height of the utility model;

[0022] Figure 5 It is a structural schematic diagram of a barrier tube of a water trap with adjustable water seal height according to the utility model;

[0023] Figure 6 It is a schematic structural diagram of the rotating body of the water trap with adjustable water seal height of the utility model;

[0024] Figure 7 It is a structural schematic diagram of a rotary clamping platform of a water trap with adjustable water seal height according to the utility model;

[0025] Figure 8 It is a structural schematic diagram of the rotating part of the water trap with adjustable water seal height of the utility model;

[0026] Fig. 9 It is a structural schematic diagram of the first socket of the water trap with adjustable water seal height of the utility model;

[0027] Fig.10 It is a structural exploded diagram of a water trap with adjustable water seal height according to the utility model;

[0028] In the accompanying drawings: 1. water trap body; 11. first socket; 111. top end face; 112. first inclined surface; 113. supporting inclined surface; 12. first inflection point; 13. socket; 2. barrier tube; 21. external thread; 3. rotating body; 31. internal thread; 32. groove; 33. limiting platform; 34. bottom end face; 35. rotating clamp; 4. rotating part; 41. first annular rib; 42. second annular rib; 421. second inclined surface; 5. elbow; 51. second socket; 52. second inflection point; 6. sealing ring; 61. upper surface; 62. lower surface. DETAILED DESCRIPTION

[0029] The utility model is further described below in conjunction with specific implementation methods. The drawings are only used for exemplary descriptions, and are only schematic diagrams, not actual pictures, and cannot be understood as limitations on this patent; in order to better illustrate the embodiments of the utility model, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.

[0030] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, it is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as limitations on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0031] Embodiment 1

[0032] like Figures 1 to 9 The embodiment of the water trap with adjustable water seal height of the utility model is shown, comprising a barrier tube 2, a water trap body 1 and an elbow 5 which are sequentially connected and arranged, the barrier tube 2 is connected with a rotating body 3 by a thread, the outer surface of the barrier tube 2 is provided with an external thread, the inner surface of the rotating body is provided with an internal thread, the rotating body 3 is located above the water trap body 1, one end of the water trap body 1 is provided with a rotating part 4 in the circumferential direction, the rotating body 3 is rotatably connected with the rotating part 4, and the other end of the water trap body 1 is connected with the elbow 5. The turning point of the upper wall of the water trap body 1 is the first turning point 12, and the turning point of the lower wall of the elbow 5 is the second turning point 52.

[0033] The utility model has a water trap with adjustable water seal height, in which the rotating body 3 is rotatably connected to the rotating part 4, so that the axial relative position of the water trap main body 1 and the rotating body 3 is fixed, and when adjusting the water seal height, the rotation of the barrier tube is limited by manual operation or other effective means, so that the barrier tube can only make axial movement, and the rotating body 3 is rotated, and the rotating body 3 drives the barrier tube 2 to move up and down through threaded cooperation.

[0034] like Figure 2 and Figure 3 As shown, the water seal height is the height difference between the second inflection point 52 and the bottom of the barrier tube 2. When the barrier tube 2 moves downward, the water seal height increases. When the barrier tube 2 moves to the lowest point, the water seal height reaches the maximum value H1. When the barrier tube 2 moves upward, the water seal height decreases. When the bottom of the barrier tube 2 is higher than the first inflection point 12, the water seal height reaches the minimum value H2. The magnitude of H2 is the height difference between the second inflection point 52 and the first inflection point 12. The water seal height can be adjusted to any value between the maximum value H1 and the minimum value H2.

[0035] When no water is needed, the rotating body 3 is rotated to make the barrier tube 2 drop to the lowest point and adjusted to the highest water seal H1 to achieve a long-term water seal effect; when water is frequently used, the rotating body 3 is rotated to make the barrier tube 2 rise to above the inflection point 12 of the water trap body 1 and adjusted to the lowest water seal H2; when the water is deposited at the bottom of the water trap, the flow rate and flow velocity are regulated by adjusting the height of the barrier tube 2 to achieve a cleaning effect.

[0036] Among them, any structure that can realize the rotational connection between the water trap body 1 and the rotating body 3 can be applied to the present utility model, and the rotating part 4 listed in this embodiment is not intended to be a limitation of the present utility model.

[0037] like Figure 6 , Figure 8 and Fig. 9As shown, a groove 32 is circumferentially provided on the outer surface of the rotating body 3, and a first annular rib 41 is provided on the inner side of the rotating part 4. The first annular rib 41 is matched and connected with the groove 32, so that the axial relative position of the rotating body 3 and the rotating part 4 is fixed, and the axial relative position of the rotating body 4 and the water trap body 1 is fixed.

[0038] The outer surface of the rotating body 3 is also provided with a limiting platform 33, and the limiting platform 33 is located below the groove 32. A top end surface 111 is provided on the top of one end of the water trap body connected to the rotating body. The top end surface 111 abuts against the limiting platform 33, which can limit the movement of the rotating body 3 toward the bottom of the water trap body 1 and prevent the rotating body 3 from falling completely into the water trap body 1. There is no need to manually limit the position of the rotating body 3 during installation, which is more convenient.

[0039] The outer periphery of the rotating body 3 is provided with a rotating clamping table 35 for convenient rotation operation. Any rotating clamping table 35 that can conveniently rotate the rotating body 3 is applicable to the present invention, such as a handle-shaped or gear-shaped structure. The rotating clamping table 35 listed in this embodiment is not intended to limit the present invention.

[0040] like Figure 7 As shown, the rotating clamping platform 35 is located above the groove 32. The rotating clamping platform 35 is a nut-shaped structure. The side of the rotating clamping platform 35 is a cylindrical surface and a rectangular surface that are alternately connected. The rotating clamping platform 35 can be rotated by a tool such as a wrench, thereby driving the rotating body 3 to rotate, and the water seal height can be adjusted more conveniently. In addition, frosting can be set on the rotating clamping platform 35 to increase the friction of the rotating clamping platform 35.

[0041] It should be noted that the type of the elbow 5 can be any one of a 45° elbow, a 90° elbow, and a 135° elbow. The 45° elbow and the trap body 1 form a P-type trap, and the 135° elbow and the trap body 1 form an S-type trap. As shown in the figure, as a preference, the type of the elbow 5 in this embodiment is a 135° elbow, which forms an S-type trap with the trap body 1. The type of the elbow 5 can be selected according to the actual use scenario, and is not limited here.

[0042] It should also be noted that the cross-sectional shape of the first annular rib 41 can be any one of circular, square, trapezoidal, semicircular and other shapes. Preferably, in this embodiment, the cross-sectional shape of the first annular rib 41 is square, and the groove 32 matching it is a square groove 32.

[0043] Embodiment 2

[0044] This embodiment is a second embodiment of a water trap with adjustable water seal height of the utility model. This embodiment is similar to the first embodiment, except that: Figure 8 and Fig. 9 As shown, a second annular rib 42 is provided on the inner side of the rotating part 4, and the second annular rib 42 is located below the first annular rib 41. The outer surface of the water trap body 1 is provided with a first inclined surface 112, and the outer periphery of the second annular rib 42 is provided with a second inclined surface 421. The first inclined surface 112 and the second inclined surface 421 are fitted together, and the first inclined surface 112 is directed upward. The distance between the first inclined surface 112 and the central axis of the water trap body 1 gradually increases from bottom to top. Because the rotating part 4 is fixedly connected to the rotating body 3 in the axial direction, the second inclined surface 421 on the outer periphery of the second annular rib 42 can The first inclined surface 112 supports the water trap body 1 and limits the axial movement of the water trap body 1 away from the rotating body 3. Because the limiting platform 33 abuts against the top end surface 111, the water trap body 1 will not move towards the rotating body 3. The limiting platform 33, the first annular ribs 41 and the second annular ribs 42 work together to fix the rotating body 3 and the water trap body 1 in axial connection. When the rotating body 3 rotates, the relative positions of the water trap body 1 and the rotating body 3 remain unchanged. The rotating body 3 drives the barrier tube 2 to move up and down through the cooperation of the internal thread 31 and the external thread 21, thereby changing the water seal height.

[0045] In addition, the first inclined surface 112 increases the wall thickness of the top of the trap, thereby improving the strength and being able to better support the rotating body 3 and the barrier tube 2 .

[0046] Embodiment 3

[0047] This embodiment is the third embodiment of a water trap with adjustable water seal height of the utility model. This embodiment is similar to the first embodiment, except that a first socket 11 and a plug 13 are provided at both ends of the water trap body 1.

[0048] The first socket 11 is matched with the rotating body 3, the barrier tube 2 is inserted into the first socket 11 through the rotating body 3, the elbow is provided with a second socket 51 matched with the socket 13, and the socket 13 is inserted into the second socket 51. The socket-and-spigot connection is easy to install and disassemble, and components of different specifications can be simply replaced to suit different scenarios, which is more flexible to use.

[0049] The inner surface of the first socket 11 is provided with a support slope 113, the distance between the support slope 113 and the central axis of the water trap body 1 gradually increases from bottom to top, and a sealing ring 6 is provided on the support slope 113. The sealing ring 6 can improve the air tightness of the water trap and prevent liquid or gas from entering the water trap from the outside or leaking from the water trap.

[0050] like Fig.10As shown, the sealing ring 6 is provided with an upper surface 61 and a lower surface 62, the lower surface 61 is in contact with the supporting inclined surface 113, the upper surface 62 is in contact with the bottom end surface 34 of the rotating body 3, the bottom of the barrier tube 2 is lower than the bottom of the rotating body 3, the inner wall of the sealing ring 6 is in close contact with the barrier tube 2, and the sealing ring 6 is sealed between the inner wall of the trap body 1, the outer wall of the barrier tube 2 and the bottom of the rotating body 3. The upper surface 62 is of the same shape and size as the supporting inclined surface 113, and the lower surface 61 is of the same shape and size as the bottom end surface 34 of the rotating body 3, so that the sealing ring 6 is in close contact with the supporting inclined surface 113, the rotating body 34 and the barrier tube 2. The volume of the cavity between the inner wall of the trap body 1, the bottom of the rotating body 3 and the side wall of the barrier tube 2 is smaller than the volume of the sealing ring 6, which produces an extrusion effect on the sealing ring 6, ensuring that there is no gap between the sealing ring 6 and the surrounding components, thereby improving the sealing performance.

[0051] The sealing ring 6 that can ensure airtightness while allowing relative rotation between the rotating body 3 and the water trap body 1 is suitable for the utility model, such as some expandable materials. In this embodiment, the sealing ring 6 is a rubber ring, which has good mobility and adaptability, a small friction coefficient with the moving parts, and can be used as a shaft seal.

[0052] In the specific contents of the above-mentioned specific implementation methods, the various technical features can be combined in any non-contradictory manner. In order to make the description concise, not all possible combinations of the above-mentioned technical features are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0053] Obviously, the above embodiments of the utility model are only examples for clearly explaining the utility model, and are not intended to limit the implementation methods of the utility model. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made on the basis of the above description. It is not necessary and impossible to list all the implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the utility model should be included in the protection scope of the claims of the utility model.

Claims

1. A water trap with adjustable water seal height, characterized in that: The invention comprises a barrier tube (2), a water trap body (1) and an elbow (5) which are connected in sequence, the barrier tube (2) being connected to a rotating body (3) by means of a thread, the rotating body (3) being located above the water trap body (1), one end of the water trap body (1) being provided with a rotating part (4) in the circumferential direction, the rotating body (3) being rotatably connected to the rotating part (4), and the other end of the water trap body (1) being connected to the elbow (5).

2. The water trap with adjustable water seal height according to claim 1, characterized in that: The inner surface of the rotating body (3) is covered with an internal thread (31), and the outer surface of the barrier tube (2) is covered with an external thread (21) matching the internal thread (31).

3. The trap with adjustable water seal height according to claim 1, characterized in that: A groove (32) is circumferentially provided on the outer surface of the rotating body (3), and a first annular rib (41) is provided on the inner side of the rotating portion (4), wherein the first annular rib (41) is cooperatively connected with the groove (32).

4. The water trap with adjustable water seal height according to claim 3, characterized in that: The outer surface of the rotating body (3) is also provided with a limiting platform (33), the limiting platform (33) is located below the groove (32), and the top end surface (111) of one end of the water trap body (1) is in contact with the limiting platform (33).

5. The water trap with adjustable water seal height according to claim 4, characterized in that: A second annular rib (42) is provided on the inner side of the rotating portion (4), and the second annular rib (42) is located below the first annular rib (41). A first inclined surface (112) is provided on the outer surface of the water trap body (1), and a second inclined surface (421) is provided on the outer periphery of the second annular rib (42). The first inclined surface (112) and the second inclined surface (421) are in contact with each other, and the first inclined surface (112) is directed upward, and the distance between the first inclined surface (112) and the central axis of the water trap body (1) gradually increases from bottom to top.

6. The trap with adjustable water seal height according to claim 1, characterized in that: The outer periphery of the rotating body (3) is provided with a rotating clamping table (35) for facilitating the rotating operation.

7. The water trap with adjustable water seal height according to claim 1, characterized in that: The two ends of the water trap body (1) are respectively provided with a first socket (11) and a plug (13); the first socket (11) cooperates with the rotating body (3); and the elbow (5) is provided with a second socket (51) that cooperates with the plug (13).

8. The water trap with adjustable water seal height according to claim 7, characterized in that: The inner surface of the first socket (11) is provided with a supporting inclined surface (113), and the distance between the supporting inclined surface (113) and the central axis of the water trap body (1) gradually increases from bottom to top. A sealing ring (6) is arranged on the supporting inclined surface (113), the bottom of the barrier tube (2) is lower than the bottom of the rotating body (3), and the sealing ring (6) is sealed between the inner wall of the water trap body (1), the outer wall of the barrier tube (2) and the bottom of the rotating body (3).

9. The trap with adjustable water seal height according to claim 8, characterized in that: The sealing ring (6) is provided with an upper surface (61) and a lower surface (62), wherein the lower surface (62) abuts against the supporting inclined surface (113), and the upper surface (61) abuts against the bottom end surface (34) of the rotating body (3).

10. The water trap with adjustable water seal height according to claim 9, characterized in that: The sealing ring (6) is a rubber ring, and the volume of the cavity between the inner wall of the trap body (1), the outer wall of the barrier tube (2) and the bottom of the rotating body (3) is smaller than the volume of the sealing ring (6).

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