Blind butt joint connecting flange for diesel fire pump

Abstract

The utility model discloses a connecting flange for a diesel fire pump capable of realizing blind butt joint. The connecting flange comprises a drainage device, the inner wall of the positioning device is in sliding connection with the outer wall of the drainage device; the inner wall of the pump body is fixedly connected with the outer wall of the positioning device; the utility model relates to the technical field of flange connection, according to the device, through the drainage device and the positioning device, the first guide plate and the second guide plate are aligned through a finger touch grope, so that the position of each connecting part can be quickly determined, and the integrated design that the threaded rod is rotationally connected to the drainage flange is adopted; through the matching design of a positioning plate, a sliding groove and a clamping block, the positioning plate is tightly clamped by the clamping block through the restoring force of an extension spring, a rotating ring moves towards a water outlet flange along a threaded rod to achieve fastening connection, the rotating ring is reversely rotated to loosen fastening pressure, and the connecting part can be quickly found and used during blind operation. The threaded rod is rotated to be separated from the positioning groove, and then the pulling plate is pulled to enable the clamping block to loosen the positioning plate.

Description

Technical Field

[0001] The utility model relates to the technical field of flange connection, in particular to a blind-connectable connecting flange for a diesel fire pump. Background Art

[0002] In the field of firefighting, diesel fire pumps play a vital role. However, in actual applications, traditional diesel fire pump connection flanges often have some problems during installation and disassembly. For example, traditional flanges are all round, and they need to rely on vision for precise alignment during installation. In some special environments, such as narrow spaces and smoke-filled scenes, it is impossible to rely on vision, which increases the difficulty of installation. At the same time, the stability and accuracy of the connection cannot be guaranteed, and the disassembly process is also complicated and tedious. In addition, traditional flanges are separated from screws, which makes it even more difficult to install when they are not visible, making installation extremely troublesome and consuming a lot of time and manpower. Utility Model Content

[0003] In view of the deficiencies in the prior art, the technical solution adopted by the utility model to solve its technical problems is: a connecting flange for a diesel fire pump that can be blindly docked, comprising: a drainage device; a positioning device, the inner wall of the positioning device is slidably connected to the outer wall of the drainage device; a pump body, the inner wall of the pump body is fixedly connected to the outer wall of the positioning device; the positioning device comprises a water outlet pipe, the outer wall of the water outlet pipe is fixedly connected to the water outlet flange, the outer wall of the water outlet flange is provided with a positioning groove, the outer wall of the top of the water outlet flange is fixedly connected to a second guide plate, the outer wall of the water outlet pipe close to the water outlet flange is fixedly connected to a sealing ring, the outer wall of the water outlet flange is symmetrically fixedly connected to a positioning block, the outer wall of the positioning block is provided with a slide groove, the inner wall of the slide groove is slidably connected to a clamping block, the outer wall of the clamping block is fixedly connected to a sliding rod, the outer wall of the sliding rod away from the clamping block is fixedly connected to a pull plate, and the outer wall of the pull plate is fixedly connected to a tension spring.

[0004] Preferably, the outer wall of the tension spring away from the pull plate is fixedly connected to the outer wall of the positioning block, the outer wall of the slide rod is slidably connected to the inner wall of the positioning block, the outer wall of the water outlet pipe away from the water outlet flange is fixedly connected to the inner wall of the pump body, and the positioning groove is arranged in a circular array along the axial center point of the water outlet flange. When the pull plate is pulled outward, the pull plate drives the slide rod to move, and the slide rod drives the clamping block to slide outward in the slide groove of the positioning block. This action will stretch the tension spring, release the pull plate, and the tension spring contracts to drive the positioning block to reset.

[0005] Preferably, the drainage device includes a drain pipe, the outer wall of the drain pipe is fixedly connected to a drain flange, the outer wall of the drain flange is provided with a rotating groove, the inner wall of the rotating groove is rotatably connected to a threaded rod, the outer wall of the threaded rod is threadedly connected to a swivel, and the outer wall of the threaded rod away from the rotating groove is fixedly connected to a limiting plate.

[0006] Preferably, the outer wall of the side of the drain flange is symmetrically fixedly connected with a positioning plate, and the outer wall of the top of the drain flange is fixedly connected with a first guide plate. By cooperating with the second guide plate, the upper rotating groove and the positioning groove of the drain flange and the water outlet flange are also consistent in position, and the position of the positioning plate and the slide groove are also consistent.

[0007] When the positioning plate is fully entered, the restoring force of the tension spring acts on the clamping block, causing the clamping block to tightly clamp the positioning plate.

[0008] The beneficial effects of the utility model are as follows:

[0009] 1. The utility model provides a drainage device so that the operator does not need to rely on vision. The operator can quickly determine the position of each connecting component by aligning the first guide plate and the second guide plate through the touch of the finger, making the installation process more convenient and efficient. The integrated design of the threaded rod rotatably connected to the drainage flange enables the connection components to be found and used more quickly during blind operation, without the need to additionally search for and assemble small parts, further improving the convenience of operation.

[0010] 2. The utility model is provided with a positioning device, and the positioning plate is designed to cooperate with the slide groove and the clamping block. During the connection process, the positioning plate slides along the slide groove, contacts the inclined surface of the clamping block, and pushes the clamping block to move. When the positioning plate is fully entered, the restoring force of the tension spring causes the clamping block to tightly clamp the positioning plate, greatly enhancing the stability and accuracy of the connection. The threaded rod slides into the positioning groove to further ensure the accuracy of the connection. The swivel moves along the threaded rod toward the water outlet flange to achieve a tight connection. When the drain flange needs to be disassembled, the operation steps are clear and simple. Rotate the swivel in the opposite direction to loosen the tightening pressure, rotate the threaded rod to separate it from the positioning groove, and then pull the pull plate to release the clamping block from the positioning plate. Finally, gently pull the drain pipe to complete the disassembly and separation. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is the main view of the utility model;

[0012] Figure 2 It is a structural diagram of the threaded rod of the utility model;

[0013] Figure 3 It is a structural diagram of the drainage device of the utility model;

[0014] Figure 4 It is a structural diagram of the positioning device of the utility model;

[0015] Figure 5 It is a structural diagram of the positioning block of the utility model.

[0016] In the figure: 1. Drainage device; 11. Drain pipe; 12. Drain flange; 13. Rotating groove; 14. Threaded rod; 15. Swivel; 16. Limit plate; 17. Positioning plate; 18. First guide plate; 2. Positioning device; 21. Outlet pipe; 22. Outlet flange; 23. Positioning groove; 24. Second guide plate; 25. Sealing ring; 26. Positioning block; 27. Slide groove; 28. Clamping block; 29. ​​Slide rod; 291. Pull plate; 292. Tension spring; 3. Pump body. DETAILED DESCRIPTION

[0017] The present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for purposes of illustration and description and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention and to enable those skilled in the art to understand the present invention and design various embodiments with various modifications suitable for specific applications. Example

[0018] See also Figure 1 - Figure 5The utility model provides a technical solution: a connecting flange for a diesel fire pump that can be blindly docked, comprising: a drainage device 1; a positioning device 2, the inner wall of the positioning device 2 is slidably connected to the outer wall of the drainage device 1; a pump body 3, the inner wall of the pump body 3 is fixedly connected to the outer wall of the positioning device 2; the positioning device 2 includes a water outlet pipe 21, the outer wall of the water outlet pipe 21 is fixedly connected to the water outlet flange 22, the outer wall of the water outlet flange 22 is provided with a positioning groove 23, the outer wall of the top of the water outlet flange 22 is fixedly connected to a second guide plate 24, the outer wall of the water outlet pipe 21 near the water outlet flange 22 is fixedly connected to a sealing ring 25, the outer wall of the water outlet flange 22 is symmetrically fixedly connected to a positioning block 26, the outer wall of the positioning block 26 is provided with a slide groove 27, the inner wall of the slide groove 27 is slidably connected to a clamping block 28, the outer wall of the clamping block 28 is fixedly connected to a sliding rod 29, the outer wall of the sliding rod 29 away from the clamping block 28 is fixedly connected to a pull plate 291, and the outer wall of the pull plate 291 is fixedly connected to a tension spring 292.

[0019] The outer wall of the tension spring 292 away from the pull plate 291 is fixedly connected to the outer wall of the positioning block 26, the outer wall of the slide rod 29 is slidably connected to the inner wall of the positioning block 26, the outer wall of the outlet pipe 21 away from the outlet flange 22 is fixedly connected to the inner wall of the pump body 3, and the positioning groove 23 is arranged in a circular array along the axial center point of the outlet flange 22. The pull plate 291 is pulled outward, and the pull plate 291 drives the slide rod 29 to move, and the slide rod 29 drives the clamping block 28 to slide outward in the slide groove 27 of the positioning block 26. This action will stretch the tension spring 292, release the pull plate 291, and the tension spring 292 contracts to drive the positioning block 26 to reset.

[0020] The drainage device 1 includes a drainage pipe 11, the outer wall of the drainage pipe 11 is fixedly connected to a drainage flange 12, the outer wall of the drainage flange 12 is provided with a rotating groove 13, the inner wall of the rotating groove 13 is rotatably connected to a threaded rod 14, the outer wall of the threaded rod 14 is threadedly connected to a swivel 15, and the outer wall of the threaded rod 14 away from the rotating groove 13 is fixedly connected to a limiting plate 16.

[0021] The outer wall of the side of the drain flange 12 is symmetrically fixedly connected with a positioning plate 17, and the outer wall of the top of the drain flange 12 is fixedly connected with a first guide plate 18. By cooperating with the second guide plate 24, the upper rotating groove 13 and the positioning groove 23 of the drain flange 12 and the water outlet flange 22 are also in the same position, and the position of the positioning plate 17 and the slide groove 27 are also consistent.

[0022] The inner wall of the positioning groove 23 is slidably connected to the outer wall of the threaded rod 14, the outer wall of the water outlet flange 22 contacts the outer wall of the swivel 15, the inner wall of the slide groove 27 is slidably connected to the outer wall of the positioning plate 17, the outer wall of the clamping block 28 contacts the outer wall of the positioning plate 17, the outer wall of the sealing ring 25 contacts the outside of the drain pipe 11, and the threaded rod 14 is rotated to slide into the positioning groove 23 on the water outlet flange 22. When the threaded rod 14 completely enters the positioning groove 23, the swivel 15 is rotated to move along the threaded rod 14 toward the water outlet flange 22, and finally contacts On the outer wall of the water outlet flange 22, the outer wall of the positioning plate 17 slides inward along the slide groove 27 on the positioning block 26, so that the positioning plate 17 contacts the inclined surface of the clamping block 28. The positioning plate 17 and the inclined surface of the clamping block 28 interact with each other and slide, so that the clamping block 28 drives the slide rod 29 and the pull plate 291 to slide outward along the slide groove 27. At the same time, because the pull plate 291 is away from the positioning block 26, the tension spring 292 is stretched and force is accumulated. When the positioning plate 17 is fully entered, the restoring force of the tension spring 292 acts on the clamping block 28, so that the clamping block 28 tightly clamps the positioning plate 17.

[0023] Working principle: When it is necessary to carry out blind flange connection, with the guidance of the first guide plate 18 and the second guide plate 24, align the first guide plate 18 with the position of the second guide plate 24 by finger touch. At this time, the upper rotation groove 13 and the positioning groove 23 of the drain flange 12 and the outlet flange 22 are also in the same position, and the position of the positioning plate 17 and the chute 27 are also in the same position. Then, move the drain flange 12 closer to the outlet flange 22, so that the outer wall of the positioning plate 17 slides inward along the chute 27 on the positioning block 26 and contacts the clamp. As the advancement continues, the inclined surface of the block 28 interacts with the inclined surface of the positioning plate 17 and the clamping block 28 to slide, so that the clamping block 28 drives the slide rod 29 and the pull plate 291 to slide outward along the slide groove 27. At the same time, because the pull plate 291 is away from the positioning block 26, the tension spring 292 is stretched and stored. When the positioning plate 17 is fully entered, the restoring force of the tension spring 292 acts on the clamping block 28, so that the clamping block 28 tightly clamps the positioning plate 17, thereby further enhancing the stability of the connection and making the subsequent threaded connection installation more accurate.

[0024] The threaded rod 14 is rotated along the rotating groove 13 and slides into the positioning groove 23 on the water outlet flange 22 to further ensure the accuracy of the connection. When the threaded rod 14 fully enters the positioning groove 23, the rotating ring 15 moves along the threaded rod 14 toward the water outlet flange 22, and finally contacts the outer wall of the water outlet flange 22, thereby further tightening the water outlet flange 22 and the drain flange 12. At the same time, since the outer wall of the water outlet flange 22 close to the water outlet pipe 21 is fixedly connected to the outer wall of the water outlet flange 22, after the connection is completed, the sealing ring 25 contacts the outer wall of the drain pipe 11 to ensure the sealing of the connection and prevent leakage. The limit plate 16 effectively prevents the swivel 15 from falling off from the threaded rod 14.

[0025] When the flange connection is completed, the pump body 3 can be started to pump water. The water flows from the pump body 3 into the water outlet pipe 21 and then is discharged through the drain pipe 11. When the drain flange 12 needs to be disassembled, the swivel 15 is rotated in the opposite direction to move the swivel 15 outward along the threaded rod 14, gradually loosening the fastening pressure on the water outlet flange 22, and then the threaded rod 14 is rotated to separate from the positioning groove 23, and then the pull plate 291 is pulled outward. The pull plate 291 drives the slide rod 29 to move, and the slide rod 29 drives the clamping block 28 to slide outward in the slide groove 27 of the positioning block 26. This action will stretch the tension spring 292, causing the clamping block 28 to gradually loosen its grip on the positioning plate 17. When the clamping block 28 completely leaves the positioning plate 17, the main connection and fixing relationship between the drainage device 1 and the positioning device 2 has been released. Gently pull the drain pipe 11 of the drainage device 1 to disengage the drain flange 12 from the outlet flange 22 to complete the disassembly and separation of the drainage device 1 and the positioning device 2. The threaded rod 14 is rotatably connected to the drain flange 12. The integrated design allows for faster use of the connecting components during blind operation.

[0026] Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without making any creative efforts should fall within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described and explained in this utility model shall be implemented in accordance with conventional means in the field unless otherwise specified or limited.

Claims

1. A blind docking connection flange for a diesel fire pump, characterized in that: include: Drainage device (1); A positioning device (2), wherein the inner wall of the positioning device (2) is slidably connected to the outer wall of the drainage device (1); A pump body (3), wherein the inner wall of the pump body (3) is fixedly connected to the outer wall of the positioning device (2); The positioning device (2) comprises a water outlet pipe (21), the outer wall of the water outlet pipe (21) is fixedly connected to a water outlet flange (22), the outer wall of the water outlet flange (22) is provided with a positioning groove (23), the outer wall of the top of the water outlet flange (22) is fixedly connected to a second guide plate (24), the outer wall of the water outlet pipe (21) on the side close to the water outlet flange (22) is fixedly connected to a sealing ring (25), the outer wall of the water outlet flange (22) is symmetrically fixedly connected to a positioning block (26), the outer wall of the positioning block (26) is provided with a sliding groove (27), the inner wall of the sliding groove (27) is slidably connected to a clamping block (28), the outer wall of the clamping block (28) is fixedly connected to a sliding rod (29), the outer wall of the sliding rod (29) on the side away from the clamping block (28) is fixedly connected to a pull plate (291), and the outer wall of the pull plate (291) is fixedly connected to a tension spring (292).

2. The blind docking connection flange for a diesel fire pump according to claim 1, characterized in that: The outer wall of the tension spring (292) away from the pull plate (291) is fixedly connected to the outer wall of the positioning block (26), the outer wall of the slide rod (29) is slidably connected to the inner wall of the positioning block (26), the outer wall of the outlet pipe (21) away from the outlet flange (22) is fixedly connected to the inner wall of the pump body (3), and the positioning grooves (23) are arranged in a circular array along the axial center point of the outlet flange (22).

3. The blind docking-capable connecting flange for a diesel fire pump according to claim 1, characterized in that: The drainage device (1) comprises a drainage pipe (11), the outer wall of the drainage pipe (11) is fixedly connected to a drainage flange (12), the outer wall of the drainage flange (12) is provided with a rotation groove (13), the inner wall of the rotation groove (13) is rotatably connected to a threaded rod (14), the outer wall of the threaded rod (14) is threadedly connected to a swivel (15), and the outer wall of the threaded rod (14) away from the rotation groove (13) is fixedly connected to a limit plate (16).

4. The blind docking-capable connecting flange for a diesel fire pump according to claim 3, characterized in that: The outer wall of the side of the drainage flange (12) is symmetrically fixedly connected to a positioning plate (17), and the outer wall of the top of the drainage flange (12) is fixedly connected to a first guide plate (18).

5. The blind docking-capable connecting flange for a diesel fire pump according to claim 1, characterized in that: The inner wall of the positioning groove (23) is slidably connected to the outer wall of the threaded rod (14), the outer wall of the water outlet flange (22) is in contact with the outer wall of the swivel (15), the inner wall of the slide groove (27) is slidably connected to the outer wall of the positioning plate (17), the outer wall of the clamping block (28) is in contact with the outer wall of the positioning plate (17), and the outer wall of the sealing ring (25) is in contact with the outside of the drain pipe (11).

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