An easily-dockable fire trench pipe fitting

Abstract

The utility model relates to fire protection pipe fitting technical field, concretely relates to an easy butt joint's fire protection trench pipe fitting, through two arc plates's both ends all fixedly connected with connecting plate, and arc plate's both sides all are equipped with threaded rod, and two threaded rods all through threaded groove in proper order penetrate four connecting plates, two connecting sleeves's between two pipe bodies sliding connection, two arc plates's outer wall all fixedly connected with a plurality of ear seat, and all ear seat all through the pin shaft rotation connection have support plate, through setting two arc plates and threaded rod, connecting plate's cooperation structure, realized the even clamping of two pipe body junction, avoided the local loosening problem that traditional clamp type structure led to uneven stress, obviously promoted the fastening and overall stability of connection, through setting the sliding fit structure between connecting sleeve and pipe body, make connecting sleeve can be connected with pipe body.

Description

Technical Field

[0001] This utility model relates to the field of fire protection pipe fittings technology, and in particular to a fire protection trench pipe fitting that is easy to connect. Background Technology

[0002] Fire-fighting grooved pipe fittings are widely used connecting components in fire-fighting piping systems. They are primarily used to quickly and tightly connect two pipe sections, ensuring good sealing and structural stability even under high-pressure water flow conditions. The basic principle involves machining annular grooves at the pipe ends, then clamping and sealing the pipes with fittings of corresponding structures, thus achieving rapid installation and reliable connection. In fire protection engineering, fire-fighting grooved pipe fittings are key connecting components of piping systems; their connection strength, sealing performance, and ease of installation have a decisive impact on the operational safety and construction efficiency of the entire fire protection system. Especially in the core aspect of pipe connection and sealing, existing grooved pipe fittings have gradually revealed a series of significant limitations and technical problems in handling complex working conditions, matching different pipe diameters, and long-term stability.

[0003] Utility model patent CN222122465U discloses a fire-fighting trench pipe fitting, comprising four connecting half-rings. The four connecting half-rings are arranged in pairs, each fitted into the trench of two pipes. The upper and lower corresponding connecting half-rings are connected and fixed by a threaded cylinder, a first screw, an orifice plate, a threaded seat, and connecting bolts. Simultaneously, the connecting half-rings on the left and right sides are connected by a second screw, a second fixing plate, and a connecting bracket, thereby achieving a tight connection between the two pipes. This device improves the tightness of the pipe connection and ease of operation through the synergistic effect of multiple sets of connecting half-rings. A sealing ring is provided between the two pipe sections; the movement of the right connecting half-ring moves the right pipe closer to the sealing ring, compressing the sealing ring and thus improving the sealing effect.

[0004] However, in practical applications, this pipe fitting still has significant shortcomings. During the connection process, the existing connection structure is insufficient to secure the pipe fitting; using clamps alone cannot ensure a stable connection between the two pipe fittings, thus affecting the overall connection stability and easily causing loosening or even detachment, posing safety hazards. Therefore, to address the many shortcomings of existing technology, we urgently need an innovative, easily connectable fire-fighting trench pipe fitting to solve these problems. Summary of the Invention

[0005] The purpose of this utility model is to provide an easy-to-connect fire trench pipe fitting, which solves the problem that the connection structure in the prior art is not effective in fixing the pipe fitting. The use of clamps alone cannot make the connection between the two pipe fittings stable, thus affecting the overall connection stability and easily causing the connection to loosen or even fall off, posing a safety hazard.

[0006] To achieve the above objectives, this utility model provides an easily connected fire trench pipe fitting, including a pipe body, and two pipe bodies are provided. It also includes a connecting sleeve fitted on one end of each of the two pipe bodies, and an arc-shaped plate is provided at the top and bottom of the connection between the two pipe bodies.

[0007] Connecting plates are fixedly connected to both ends of the two arc-shaped plates, and threaded rods are provided on both sides of the arc-shaped plates. The two threaded rods pass through the four connecting plates in sequence through threaded grooves. The two connecting sleeves are slidably connected to the two pipe bodies respectively. Several lugs are fixedly connected to the outer walls of the two arc-shaped plates, and a support plate is rotatably connected to all lugs through pins. A support plate is fixedly connected to one side of all support plates, and one end of all support plates is detachably connected to the outer walls of the two connecting sleeves respectively.

[0008] Each of the two tubes has an annular retaining plate fitted onto one end, and the inner walls of the two arc-shaped plates are provided with annular grooves for use with the annular retaining plates.

[0009] Each of the two tubes has several sliding plates fixedly connected to its outer wall, and all the sliding plates are slidably connected to the inner walls of the two connecting sleeves through grooves.

[0010] Each skateboard has a bar on one side, and one end of each bar passes through each skateboard.

[0011] Each of the support plates has a locking block fixedly connected to one end, and each of the connecting sleeves has several slots on its outer wall that are used in conjunction with the locking block.

[0012] All the slides are fitted with clearances to all the slides.

[0013] This utility model discloses an easily connected fire-fighting trench pipe fitting. Through a structure consisting of two arc-shaped plates, a threaded rod, and a connecting plate, it achieves uniform clamping at the connection point of two pipe bodies, avoiding the local loosening problem caused by uneven force distribution in traditional clamp-type structures, significantly improving the tightness and overall stability of the connection. Secondly, a sliding fit structure between the connecting sleeve and the pipe body allows the connecting sleeve to connect with the pipe body. Simultaneously, multiple lugs are distributed on the outer wall of the arc-shaped plates and are rotatably connected to a support plate via pins. The support plate at the end of the support plate cooperates with a locking block, forming an auxiliary fixing structure after the locking block engages with the slot on the connecting sleeve. This effectively prevents loosening or detachment due to vibration or pressure fluctuations during the connection process, improving the vibration resistance and long-term reliability of the connection structure. Furthermore, the rotatable structure design between the support plate and the locking plate allows for flexible angle adjustment during installation, adapting to different pipe diameters and installation space limitations, improving the versatility and ease of operation of the device. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0015] Figure 1 This is a schematic diagram of the overall main view structure of an embodiment of this utility model.

[0016] Figure 2 This is a side view structural diagram of an embodiment of the present utility model.

[0017] Figure 3 This is a schematic diagram of the arc-shaped plate structure according to an embodiment of the present invention.

[0018] Figure 4 This is a schematic diagram of the annular card plate and its structure according to an embodiment of the present utility model.

[0019] Figure 5 This is a schematic diagram of the connecting sleeve structure according to an embodiment of the present utility model.

[0020] 1. Pipe body; 2. Arc plate; 3. Connecting plate; 4. Threaded rod; 5. Connecting sleeve; 6. Slide plate; 7. Insert rod; 8. Ear seat; 9. Support plate; 10. Support plate; 11. Locking block; 12. Locking groove; 13. Threaded groove; 14. Annular locking plate; 15. Annular locking groove; 16. Sliding groove. Detailed Implementation

[0021] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0022] Please see Figure 1-5 .

[0023] A fire-fighting trench pipe fitting that is easy to connect includes a pipe body 1, and two pipe bodies 1 are provided. The fitting also includes a connecting sleeve 5 on one end of each of the two pipe bodies 1, and an arc plate 2 is provided at the top and bottom of the connection between the two pipe bodies 1.

[0024] Connecting plates 3 are fixedly connected to both ends of the two arc-shaped plates 2, and threaded rods 4 are provided on both sides of the arc-shaped plates 2. The two threaded rods 4 pass through the four connecting plates 3 in sequence through the threaded grooves 13. The two connecting sleeves 5 are slidably connected to the two tube bodies 1 respectively. Several lugs 8 are fixedly connected to the outer walls of the two arc-shaped plates 2, and a support plate 9 is rotatably connected to all lugs 8 through a pin. A support plate 10 is fixedly connected to one side of all support plates 9, and one end of all support plates 10 is detachably connected to the outer walls of the two connecting sleeves 5 respectively.

[0025] Two pipe bodies 1 to be connected are placed end to end, ensuring that the grooves at the ends of the two pipes are aligned and in close contact. Then, two arc-shaped plates 2 are respectively fitted onto the connection point of the two pipe bodies 1. The arc-shaped structure of the arc-shaped plates 2 can tightly fit the outer wall of the pipe body 1, forming initial clamping support. Connecting plates 3 are fixedly connected to both ends of the two arc-shaped plates 2. The four connecting plates 3 are symmetrically distributed around the connection point of the pipe bodies 1, arranged vertically and horizontally. Two threaded rods 4 are respectively located on both sides of the arc-shaped plates 2, and pass through the four connecting plates 3 sequentially via threaded grooves 13. The operator rotates the threaded rods 4 to gradually tighten them, thereby causing the two arc-shaped plates 2 to contract inward, applying a uniform clamping force to the connection point of the two pipe bodies 1. The force is applied to achieve a preliminary tight connection. At the same time, the two connecting sleeves 5 are slidably fitted onto the two pipe bodies 1 respectively. After the arc plate 2 is clamped, the operator moves all the support plates 9 fixed on the ear seat 8. The ear seat 8 is rotatably connected to the support plate 9 through the pin, so that the support plate 9 can flexibly adjust the angle. A support plate 10 is fixedly connected to one side of the support plate 9. The end of the support plate 10 is provided with a locking block 11. After the support plate 10 is moved, the locking block 11 is precisely aligned and engaged with the locking groove 12 on the outer wall of the connecting sleeve 5, thereby forming a further limit and fixation of the connecting sleeve 5, enhancing the tensile strength and vibration resistance of the overall connection structure, and finally achieving a stable docking between the two pipe bodies 1.

[0026] Furthermore, annular clamping plates 14 are fitted onto one end of each of the two tube bodies 1, and annular grooves 15 for use with the annular clamping plates 14 are opened on the inner walls of the two arc-shaped plates 2. When the arc-shaped plates 2 are fitted onto the connection of the tube bodies 1, the annular clamping plates 14 are embedded in the annular grooves 15, thereby achieving axial positioning between the arc-shaped plates 2 and the tube bodies 1, preventing axial slippage of the arc-shaped plates 2 during clamping, improving the stability of the clamping structure, and achieving the effect of enhancing the axial positioning capability of the connection structure and the overall connection reliability.

[0027] Furthermore, several sliding plates 6 are fixedly connected to the outer walls of both tubes 1, and all sliding plates 6 are slidably connected to the inner walls of the two connecting sleeves 5 through the sliding grooves 16. During the sliding of the connecting sleeve 5 along the tube 1, the sliding plates 6 slide synchronously in the sliding grooves 16, providing guidance and support for the sliding of the connecting sleeve 5, avoiding the connecting sleeve 5 from shifting or getting stuck during the sliding process, thereby improving the fitting accuracy and sliding stability between the connecting sleeve 5 and the tube 1, and achieving the effect of improving the smoothness of the sliding and the structural guidance of the connecting sleeve 5.

[0028] Furthermore, each of the slide plates 6 has a plug rod 7 on one side, and one end of each plug rod 7 passes through each of the slide plates 6. After the connecting sleeve 5 and the tube body 1 are slidably connected, the plug rod 7 can be inserted into the interior of the slide plate 6, which plays an auxiliary role in limiting and fixing the connecting sleeve 5, preventing the connecting sleeve 5 from sliding accidentally due to external force or vibration, further enhancing the tensile strength and stability of the connection structure, and achieving the effect of improving the fixing reliability of the connecting sleeve 5 and the vibration resistance of the connection structure.

[0029] Furthermore, a locking block 11 is fixedly connected to one end of each support plate 10, and several slots 12 for cooperating with the locking block 11 are opened on the outer wall of each connecting sleeve 5. After the support plate 10 is moved, the locking block 11 and the slot 12 are precisely aligned and engaged, forming a further limiting and fixing of the connecting sleeve 5, preventing the connecting sleeve 5 from displacing due to external force during use, thereby effectively enhancing the stability and tensile performance of the entire connection structure, and achieving the effect of improving the locking ability and installation reliability of the connection structure.

[0030] Furthermore, all the slide plates 6 are clearance fits with all the slide grooves 16.

[0031] In summary:

[0032] The operator first places the two pipe bodies 1 to be connected together, ensuring that the grooves at the ends of the two pipes are aligned and in close contact. Then, two arc-shaped plates 2 are respectively fitted onto the connection point of the two pipe bodies 1. The arc-shaped structure of the arc-shaped plates 2 can tightly fit the outer wall of the pipe body 1, forming initial clamping support. Connecting plates 3 are fixedly connected to both ends of the two arc-shaped plates 2. The four connecting plates 3 are symmetrically distributed around the connection point of the pipe bodies 1, arranged vertically and horizontally. Two threaded rods 4 are respectively located on both sides of the arc-shaped plates 2, and pass through the four connecting plates 3 sequentially via threaded grooves 13. The operator rotates the threaded rods 4 to gradually tighten them, thereby causing the two arc-shaped plates 2 to contract inwards, thus clamping the connection point of the two pipe bodies 1. A uniform clamping force is applied to achieve a preliminary fastening connection. Simultaneously, two connecting sleeves 5 are slidably fitted onto two tube bodies 1. Several sliding plates 6 are fixedly connected to the outer walls of both tube bodies 1, and are slidably connected to the inner walls of the connecting sleeves 5 via grooves 16. As the connecting sleeves 5 slide along the tube bodies 1, the sliding plates 6 slide synchronously within the grooves 16, providing guidance and support for the sliding of the connecting sleeves 5 and preventing them from shifting or jamming during sliding. Furthermore, an annular retaining plate 14 is fitted onto one end of each tube body 1, and annular grooves 15 are formed on the inner walls of both arc-shaped plates 2 to cooperate with the annular retaining plate 14. The arc-shaped plates 2 are fitted onto the tube bodies... At the connection point, the annular clamping plate 14 is embedded in the annular clamping groove 15, achieving axial limiting between the arc-shaped plate 2 and the tube body 1, preventing axial slippage of the arc-shaped plate 2 during clamping; each slide plate 6 has an insert rod 7 on one side, with one end of the insert rod 7 penetrating through the slide plate 6. After the connecting sleeve 5 and the tube body 1 complete the sliding docking, the insert rod 7 is inserted into the slide plate 6, playing an auxiliary limiting and fixing role for the connecting sleeve 5, preventing accidental slippage of the connecting sleeve 5 due to external force or vibration; after the arc-shaped plate 2 is clamped, the operator moves all the support plates 9 fixed on the lugs 8, and the lugs 8 are rotatably connected to the support plates 9 through pins, allowing the support plates 9 to flexibly adjust their angle; A support plate 10 is fixedly connected to one side of the support plate 9. A locking block 11 is provided at the end of the support plate 10. After the support plate 10 is moved, the locking block 11 is precisely aligned and engaged with the locking groove 12 on the outer wall of the connecting sleeve 5, thereby further limiting and fixing the connecting sleeve 5 and enhancing the tensile strength and vibration resistance of the overall connection structure. In addition, all the sliding plates 6 and the sliding grooves 16 are clearance fits, so that the sliding plates 6 have a certain tolerance space when sliding in the sliding grooves 16. This ensures the smoothness of sliding and avoids jamming caused by processing errors or assembly deviations. It improves the adaptability and assembly efficiency of the connecting sleeve 5 during the installation process and finally achieves a stable connection between the two pipe bodies 1.By combining the arc-shaped plate 2, connecting plate 3, and threaded rod 4, uniform clamping of the pipe body 1 connection is achieved, avoiding the local loosening problem caused by uneven force distribution in traditional clamp structures, and significantly improving the tightness and overall stability of the connection. The annular clamping plate 14 and annular groove 15 provide axial limiting during the clamping process of the arc-shaped plate 2, enhancing the connection reliability between the arc-shaped plate 2 and the pipe body 1 and preventing axial slippage during clamping. The sliding fit structure of the sliding plate 6 and the sliding groove 16 provides guidance and support for the sliding of the connecting sleeve 5, improving the fitting accuracy and sliding stability between the connecting sleeve 5 and the pipe body 1, and enhancing... The design ensures smooth sliding and structural guidance of the connecting sleeve 5. The insertion rod 7 and sliding plate 6 provide auxiliary limiting and fixation after the connecting sleeve 5 slides into position, further enhancing the tensile and vibration resistance of the connection structure and preventing accidental sliding of the connecting sleeve 5 due to external forces or vibrations. The cooperation of the support plate 10, the locking block 11, and the locking groove 12 further limits and fixes the connecting sleeve 5 after the support plate 10 is moved, effectively enhancing the stability and tensile strength of the entire connection structure. Furthermore, the clearance fit design between the sliding plate 6 and the sliding groove 16 improves the adaptability and assembly efficiency of the connecting sleeve 5 during installation, enhancing the fault tolerance and ease of installation of the sliding structure. In summary, this easily connected fire-fighting grooved pipe fitting, through multi-structure collaborative optimization design, effectively solves technical problems in existing technologies such as unstable connection, uneven clamping force, poor sealing, weak vibration resistance, and inconvenient installation. It has advantages such as reasonable structure, uniform clamping, stable connection, strong vibration resistance, convenient installation, and wide applicability. It can better meet the needs of modern fire-fighting piping systems for high safety, high sealing, and rapid installation, and provides strong protection for the safe operation and efficient construction of fire protection projects.

[0033] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.

Claims

1. A fire-fighting trench pipe fitting that is easy to connect, comprising a pipe body, wherein two pipe bodies are provided, characterized in that, It also includes connecting sleeves fitted on one end of both pipes, and arc-shaped plates at the top and bottom of the connection between the two pipes; Both ends of the two arc-shaped plates are fixedly connected to connecting plates, and both sides of the arc-shaped plates are provided with threaded rods. The two threaded rods pass through the four connecting plates in sequence through threaded grooves. The two connecting sleeves are slidably connected to the two tubes respectively. Several lugs are fixedly connected to the outer walls of the two arc-shaped plates, and all lugs are rotatably connected to support plates through pins. One side of all the support plates is fixedly connected to a support plate, and one end of all the support plates is detachably connected to the outer walls of the two connecting sleeves respectively.

2. The fire-fighting trench pipe fitting as described in claim 1, characterized in that, An annular retaining plate is fitted onto one end of each of the two tubes, and an annular groove for use with the annular retaining plate is opened on the inner wall of each of the two arc-shaped plates.

3. The fire-fighting trench pipe fitting as described in claim 1, characterized in that, Several sliding plates are fixedly connected to the outer walls of both tubes, and all the sliding plates are slidably connected to the inner walls of the two connecting sleeves through sliding grooves.

4. The fire-fighting trench pipe fitting as described in claim 3, characterized in that, All of the aforementioned skateboards have a plug on one side, and one end of each plug passes through all the skateboards.

5. The fire-fighting trench pipe fitting as described in claim 1, characterized in that, All of the support plates have a locking block fixedly connected to one end, and all of the connecting sleeves have several slots on their outer walls that cooperate with the locking block.

6. The fire-fighting trench pipe fitting as described in claim 3, characterized in that, All of the aforementioned slide plates are clearance fits with all of the slide grooves.

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