Anti-seismic and leakage-proof fire-fighting pipeline mechanical pipe fitting
By combining locking and sealing components, the problem of loosening and leakage of mechanical tees in fire-fighting pipelines under vibration is solved, achieving a stable and safe connection of fire-fighting pipelines.
Patent Information
- Application Number
- CN202520869624.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-06
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2035-05-06
AI Technical Summary
Existing fire-fighting pipeline mechanical tees may leak when the nuts loosen due to vibration, and the sealing rings cannot effectively prevent leaks caused by excessive water pressure.
The design employs a combination of locking and sealing components. The locking component achieves two-stage fixation through symmetrically arranged locking rods and nuts, while the sealing component reduces water pressure through sealing plates and connecting plates, ensuring that the fasteners do not loosen and effectively seal.
It effectively prevents loosening and leakage caused by vibration, reduces water pressure, ensures the sealing of fire-fighting pipes, avoids leakage, and is stable, safe and reliable in use.
Smart Images

Figure CN223924258U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fire protection pipeline mechanical fittings, specifically to a shock-resistant and leak-proof fire protection pipeline mechanical fitting. Background Technology
[0002] The quality of fire protection pipeline installation directly affects the safety of buildings and the safety of residents' lives and property. Therefore, the installation of fire protection pipelines is of utmost importance. Generally, fire protection pipelines are fixed and connected to water systems using mechanical tees or crosses.
[0003] In current applications, mechanical tees are fixed with screws and nuts. When vibration occurs, the nuts may loosen and cause leakage. Furthermore, the current method of sealing with a sealing ring at the water outlet can lead to excessive water pressure at the outlet after installation, resulting in leakage. Therefore, a shock-resistant and leak-proof mechanical pipe fitting for fire protection pipelines is proposed. Utility Model Content
[0004] The purpose of this utility model is to provide a shock-resistant and leak-proof fire-fighting pipeline mechanical fitting in order to solve the problems mentioned above.
[0005] To achieve the above objectives, this utility model specifically adopts the following technical solution:
[0006] A shock-resistant and leak-proof fire-fighting pipeline mechanical fitting includes a first fixing member, a second fixing member is provided on the side of the first fixing member and the second fixing member cooperates with the first fixing member to form a circle on the inner side, and the first fixing member and the second fixing member form the main body of the mechanical tee;
[0007] A locking assembly is provided between the sides of the first fixing member and the second fixing member, and the locking assembly locks the first fixing member and the second fixing member in place.
[0008] A sealing component is provided on the inner side of the first and second fixing members. The sealing component assists in the pressure relief and sealing between the first and second fixing members.
[0009] Furthermore, the locking assembly includes a locking rod symmetrically arranged between the first fixing member and the second fixing member, with the locking rod passing through it. A second thread is provided on the side of the tail end of the locking rod, and a first thread is provided on the side of the locking rod corresponding to the position of the second thread.
[0010] Furthermore, a first nut and a second nut are threaded onto the side of the locking rod, and a sealing ring is provided on the side of the first nut and the second nut, and the sealing ring is movably sleeved on the side of the locking rod.
[0011] Furthermore, the first thread and the second thread are threaded grooves, the first thread and the second thread have opposite thread directions, the first nut and the second nut are respectively positioned corresponding to the first thread and the second thread, and the first nut and the second nut are nut blocks with opposite threads on their inner sides.
[0012] Furthermore, the sealing assembly includes a mounting cavity formed inside the first fixing member and the second fixing member, wherein a first sealing plate is movably mounted inside the mounting cavity corresponding to the position of the second fixing member, and a second sealing plate is movably mounted inside the mounting cavity corresponding to the position of the first fixing member.
[0013] Furthermore, connecting plates are symmetrically fixedly installed on both sides of the first sealing plate and the second sealing plate, and the connecting plates are positioned between the first fixing member and the second fixing member. The second sealing plate has positioning grooves equidistantly opened on the side of the first sealing plate corresponding to the position of the first sealing plate. Positioning blocks are fixedly installed on the first sealing plate equidistantly corresponding to the position of the second sealing plate, and the positioning blocks are engaged inside the positioning grooves.
[0014] The beneficial effects of this utility model are as follows:
[0015] 1. The locking component of this utility model can provide a two-stage fixing operation for the first and second fixing parts during installation, and avoids loosening and leakage during vibration. The sealing component can effectively reduce the water pressure at the outlet, preventing leakage due to excessive water pressure. Furthermore, the water pressure can improve the tightness of the first sealing plate and the side of the pipe, ensuring that the mechanical pipe fitting will not leak, and making it stable, safe and reliable in use. Attached Figure Description
[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0017] Figure 2 This is a cross-sectional structural diagram of the present invention;
[0018] Figure 3 This is a partial exploded view of the locking assembly of this utility model;
[0019] Figure 4 This is a partial exploded structural diagram of the sealing component of this utility model.
[0020] Reference numerals: 1. First fixing member; 2. Second fixing member; 3. Locking assembly; 31. Locking rod; 32. First thread; 33. Second thread; 34. First nut; 35. Second nut; 36. Sealing ring; 4. Sealing assembly; 41. Mounting cavity; 42. First sealing plate; 43. Second sealing plate; 44. Connecting plate; 45. Positioning groove; 46. Positioning block. Detailed Implementation
[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.
[0022] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.
[0023] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0024] In the description of the embodiments of this utility model, it should be noted that the terms "inner", "outer", "upper", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is usually placed when in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0025] like Figure 1 As shown, a shock-resistant and leak-proof fire-fighting pipeline mechanical fitting includes a first fixing member 1, which is a semi-circular ring. A second fixing member 2 is provided on the side of the first fixing member 1, and the second fixing member 2 and the first fixing member 1 cooperate to form a circle on the inner side. The second fixing member 2 is a semi-circular ring with a protrusion on the side. The first fixing member 1 and the second fixing member 2 form the main body of the mechanical tee. A locking assembly 3 that can be locked and fixed is provided between the sides of the first fixing member 1 and the second fixing member 2. A sealing assembly 4 that can assist in sealing is provided on the inner side of the first fixing member 1 and the second fixing member 2.
[0026] Specifically, the locking component 3 can fix and lock the first fixing member 1 and the second fixing member 2 to prevent loosening caused by vibration. The sealing component 4 can seal the first fixing member 1 and the second fixing member 2 and effectively reduce the water pressure at the outlet to prevent leakage.
[0027] like Figure 2 and Figure 3 As shown, the locking assembly 3 includes a locking rod 31 symmetrically arranged between the first fixing member 1 and the second fixing member 2, with the locking rod 31 passing through it. The locking rod 31 is a "T"-shaped round rod. A second thread 33 is provided on the side of the tail end of the locking rod 31. A first thread 32 is provided on the side of the locking rod 31 corresponding to the position of the second thread 33. The first thread 32 and the second thread 33 are threaded grooves. The threads of the first thread 32 and the second thread 33 have opposite directions. A first nut 34 and a second nut 35 are threadedly sleeved on the side of the locking rod 31. The positions of the first nut 34 and the second nut 35 correspond to the positions of the first thread 32 and the second thread 33, respectively. The first nut 34 and the second nut 35 are nut blocks with opposite threads on their inner sides. A sealing ring 36 is provided on the side of the first nut 34 and the second nut 35, and the sealing ring 36 is movably sleeved on the side of the locking rod 31. The sealing ring 36 is a rubber ring.
[0028] Specifically, the locking rod 31 is installed between the first fixing member 1 and the second fixing member 2. First, a set of sealing rings 36 are fitted, and the first nut 34 is threaded onto the first thread 32 to compress the sealing rings 36, which can fasten the first fixing member 1 and the second fixing member 2. Then, a set of sealing rings 36 are fitted, and the second nut 35 is threaded onto the second thread 33 to compress the sealing rings 36, which can further fasten the first fixing member 1 and the second fixing member 2. The first nut 34 and the second nut 35 have opposite nut mating directions. During vibration, the first nut 34 and the second nut 35 play a mutual restraining and locking role, preventing the first fixing member 1 and the second fixing member 2 from loosening.
[0029] like Figure 2 and Figure 4 As shown, the sealing assembly 4 includes a mounting cavity 41 formed inside the first fixing member 1 and the second fixing member 2. The mounting cavity 41 is an annular cavity. Inside the mounting cavity 41, a first sealing plate 42 is movably mounted corresponding to the position of the second fixing member 2. The first sealing plate 42 is a semi-circular annular rubber plate with a folded I-shaped cross-section, and its side has a circular groove corresponding to the second fixing member 2. Inside the mounting cavity 41, a second sealing plate 43 is movably mounted corresponding to the position of the first fixing member 1. The second sealing plate 43 is a semi-circular rubber plate with a folded I-shaped cross-section. Connecting plates 44 are symmetrically fixedly installed on both sides of the first sealing plate 42 and the second sealing plate 43, and the connecting plates 44 are positioned between the first fixing member 1 and the second fixing member 2. The connecting plates 44 are rectangular blocks made of rubber. Positioning grooves 45 are provided at equal intervals on the side of the second sealing plate 43 corresponding to the first sealing plate 42. The positioning grooves 45 are round holes. Positioning blocks 46 are fixedly installed at equal intervals on the first sealing plate 42 corresponding to the second sealing plate 43, and the positioning blocks 46 are engaged inside the positioning grooves 45. The positioning blocks 46 are round blocks made of elastic rubber.
[0030] Specifically, when the second sealing plate 43 and the first sealing plate 42 are installed inside the mounting cavity 41 corresponding to the positions of the first fixing member 1 and the second fixing member 2 by the connecting plate 44, they can be constrained and positioned. In addition, when the first fixing member 1 and the second fixing member 2 are combined, the positioning block 46 is engaged inside the positioning groove 45, so that the first sealing plate 42 and the second sealing plate 43 are combined into one. By squeezing the connecting plate 44, they are tightly fitted together. In use, water flows from the pipe and fills the space between the first sealing plate 42 and the second sealing plate 43, reducing the water pressure at the outlet. The water flow also presses the first sealing plate 42 and the second sealing plate 43 so that they can fit more tightly against the side of the pipe, preventing water leakage.
[0031] In summary: the locking component 3 provides a two-stage fixing operation for the first fixing component 1 and the second fixing component 2 during installation, and avoids loosening and leakage during vibration. The sealing component 4 effectively reduces the water pressure at the outlet, preventing leakage due to excessive water pressure. Furthermore, the water pressure improves the tightness of the first sealing plate 42 on the side of the pipe, ensuring that the mechanical pipe fitting will not leak, making it stable, safe, and reliable in use.
[0032] The above is a schematic diagram of the mechanical tee position. Mechanical four-way valves and the like can be used stably and safely through the same principle.
[0033] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. An anti-seismic and leak-proof mechanical pipe fitting for fire protection pipes, comprising a first fixing element (1), characterized in that: The side of the first fixing part (1) is provided with the second fixing part (2) which cooperates with the first fixing part (1) to form a circle on the inner side, and the first fixing part (1) and the second fixing part (2) form a mechanical tee main part; The side of the first fixing part (1) and the second fixing part (2) is provided with the locking assembly (3) which locks the first fixing part (1) and the second fixing part (2); The inner side of the first fixing part (1) and the second fixing part (2) is provided with the sealing assembly (4) which assists in slowly sealing the first fixing part (1) and the second fixing part (2).
2. A shock resistant leak proof fire protection pipe mechanical coupling according to claim 1, characterized in that: The locking assembly (3) comprises the locking rod (31) symmetrically arranged between the first fixing part (1) and the second fixing part (2) and penetrating the same, the tail end side of the locking rod (31) is provided with the second thread (33), and the side of the locking rod (31) is provided with the first thread (32) corresponding to the position of the second thread (33).
3. A shock resistant leak proof fire protection pipe mechanical coupling according to claim 2, characterized in that: The side of the locking rod (31) is threadedly sleeved with the first nut (34) and the second nut (35), the side of the first nut (34) and the second nut (35) is provided with the sealing ring (36) which is movably sleeved on the side of the locking rod (31).
4. A shock resistant leak proof fire protection pipe mechanical coupling according to claim 3, characterized in that: The first thread (32) and the second thread (33) are thread-shaped grooves, the thread rotation directions of the first thread (32) and the second thread (33) are opposite, the first nut (34) and the second nut (35) correspond to the positions of the first thread (32) and the second thread (33) respectively, and the first nut (34) and the second nut (35) are nut blocks with opposite threads on the inner sides.
5. A shock and leak resistant fire protection pipe mechanical coupling according to claim 4, wherein: The sealing assembly (4) comprises the mounting cavity (41) arranged on the inner side of the first fixing part (1) and the second fixing part (2), the first sealing plate (42) is movably mounted in the mounting cavity (41) corresponding to the position of the second fixing part (2), and the second sealing plate (43) is movably mounted in the mounting cavity (41) corresponding to the position of the first fixing part (1).
6. A shock and leak resistant fire protection pipe mechanical coupling according to claim 5, wherein: The two sides of the first sealing plate (42) and the second sealing plate (43) are symmetrically fixedly provided with the connecting plates (44) arranged between the first fixing part (1) and the second fixing part (2), the side of the second sealing plate (43) corresponding to the first sealing plate (42) is provided with the positioning groove (45) at equal intervals, and the first sealing plate (42) is provided with the positioning block (46) fixedly installed at equal intervals corresponding to the position of the second sealing plate (43) and clamped in the inner position of the positioning groove (45).