Flange connecting structure convenient to position

Abstract

The utility model relates to the technical field of flange positioning connection, and provides a flange connecting structure convenient to position, which comprises a first flange connecting piece, a second flange connecting piece with the same specification is arranged on the side surface of the first flange connecting piece, and three groups of positioning grooves are annularly formed in the outer side of the second flange connecting piece. A screwing assembly is arranged on the butt joint face of the first flange connecting piece and the second flange connecting piece and further comprises a rotating ring rotationally connected to the side face of the first flange connecting piece, and three sets of slope plates are annularly and fixedly connected to the inner side of the rotating ring. The side face of the first flange connecting piece is further provided with an inward extending assembly which can be extruded by the slope plate to make contact with the slope plate when the rotating ring rotates and can be ejected into the positioning groove to complete positioning. By means of the design, the problem that in the prior art, the whole pipeline needs to be rotated for adjustment during installation, and consequently operation is inconvenient in a narrow space is solved.

Description

Technical Field

[0001] This utility model relates to the field of flange positioning and connection technology, specifically to a flange connection structure that facilitates positioning. Background Technology

[0002] Flange connections are a key method for connecting pipes, fittings, or equipment. They consist of a pair of flanges, several bolts and nuts, and a gasket. During installation, the two flanges are placed opposite each other with a gasket in between. Bolts are passed through the bolt holes and tightened to tightly connect the pipes or equipment, ensuring no leakage of the medium and providing support and positioning. Pre-positioning of flange connections before assembly can prevent loosening or leakage due to positioning deviations, while also improving installation efficiency.

[0003] A search revealed that CN220792395U discloses a flanged connecting pipe with a positioning structure, belonging to the field of flanged pipe technology. The pipe includes a pipe body and flanges welded to both ends of the pipe body. Multiple fixing holes are arranged in a ring on the surface of the flanges. Positioning bolts are inserted into the inner sides of two symmetrical fixing holes. Nuts are screwed onto the side walls of the positioning bolts. One side of the inner wall of the pipe body is threaded, and a positioning tube is threadedly connected to this side of the inner wall. Half of the positioning tube is located on the outside of the pipe body. The positioning tube is a stainless steel tubular structure, and the portion of its outer wall on the outside of the pipe body is coated with a Teflon coating. A positioning ring corresponding to the positioning tube is welded to the other side of the inner wall of the pipe body, and the positioning ring is a magnetic ring structure. This flanged connecting pipe with a positioning structure simplifies the positioning operation.

[0004] The aforementioned flange connection pipe with a positioning structure requires the entire pipe to be rotated for adjustment during installation, which leads to inconvenience in operation in confined spaces. Utility Model Content

[0005] This invention proposes a flange connection structure that is easy to position, solving the problem in the prior art where the entire pipe needs to be rotated for adjustment during installation, which leads to inconvenience in operation in confined spaces.

[0006] The technical solution of this utility model is as follows: A flange connection structure that is easy to position includes a first flange connector, a second flange connector of the same specification is provided on the side of the first flange connector, three sets of positioning grooves are provided in an annular shape on the outer side of the second flange connector, a screwing assembly is provided on the mating surface of the first flange connector and the second flange connector, the screwing assembly also includes a rotating ring rotatably connected to the side of the first flange connector, three sets of slope plates are fixedly connected in an annular shape on the inner side of the rotating ring, and an inner extension assembly is also provided on the side of the first flange connector, which can be pressed and contacted by the slope plates when the rotating ring rotates and pushed into the positioning groove to complete the positioning.

[0007] Preferably, the screwing assembly further includes a screw cap, which is rotatably connected to the outside of the first flange connector. The screwing assembly also includes a worm gear, which is rotatably connected to the inside of the first flange connector, and the top of the worm gear is fixedly connected to the screw cap.

[0008] Preferably, the screwing assembly further includes a rotating shaft, which is rotatably connected inside the first flange connector. The screwing assembly also includes a worm gear, which is fixedly connected to one end of the rotating shaft. The worm gear is in contact with the worm and is meshed and rotatably connected.

[0009] Preferably, the screwing assembly further includes a toothed disc, which is fixedly connected to the other end of the rotating shaft.

[0010] Preferably, the screwing assembly further includes a toothed groove group, which is distributed in a ring on the outside of the rotating ring, and the toothed groove group is in contact with the toothed disc and is meshed and rotatably connected.

[0011] Preferably, the inner extension assembly includes an inner extension seat, the side of which is provided with a slope, the slope being matched with the shape of the contact surface of the gear disc.

[0012] Preferably, the inner extension assembly further includes a slide rod, which is symmetrically and fixedly connected in the slots on both sides of the inner extension seat. The inner extension assembly also includes a spring ring, which is sleeved on the upper outer side of the slide rod.

[0013] Preferably, the inner extension assembly further includes a cross plate, one side of which is fixedly connected to the first flange connector, and the cross plate is slidably connected to the slide rod.

[0014] The beneficial effects of this utility model are as follows:

[0015] Innovation Point 1: Localized operation design to avoid overall pipe rotation

[0016] CNU's patent requires rotating the entire pipe to adjust the fit between the positioning tube and the magnetic positioning ring, which is difficult to operate in confined spaces. This invention, however, uses a worm gear and worm wheel drive in the screwing assembly. Simply turning the cap on the outside of the first flange connector drives the rotating ring to rotate, causing the inner extension assembly to insert into the positioning groove, achieving rapid positioning. It eliminates the need to rotate the entire pipe, significantly reducing the required operating space, making it particularly suitable for narrow or complex environments.

[0017] Innovation Point Two: Self-locking mechanism and elastic reset design enhance stability and convenience.

[0018] This invention utilizes the self-locking effect of the worm gear engagement to prevent positioning misalignment due to reverse movement, and the elastic reset function of the spring coil, ensuring stability during positioning while simplifying the disassembly process. When the cap is twisted in the reverse direction, the inner extension component automatically resets and disengages from the positioning groove. In contrast, CNU's patent relies on manual adjustment of the positioning tube and magnet separation, which is cumbersome and prone to loosening. This invention's integrated mechanical linkage design significantly improves disassembly and assembly efficiency and reliability.

[0019] In summary, this utility model solves the problems of limited space and complex operation in the prior art through two major innovations: partial operation and mechanical self-locking, thus combining high efficiency and practicality. Attached Figure Description

[0020] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0021] Figure 1 This is a schematic diagram of the assembly of the first flange connector and the second flange connector of this utility model;

[0022] Figure 2 This is a split view of the first flange connector and the second flange connector of this utility model;

[0023] Figure 3 This is a schematic diagram of the screwing assembly of this utility model;

[0024] Figure 4 This is a schematic diagram of the inner extension component of this utility model;

[0025] In the diagram: 1. First flange connector; 2. Second flange connector; 21. Positioning groove; 3. Tightening assembly; 31. Tightening cap; 311. Worm gear; 32. Rotating shaft; 321. Worm wheel; 322. Gear plate; 33. Rotary ring; 331. Gear groove assembly; 332. Slope plate; 4. Inner extension assembly; 41. Inner extension seat; 411. Slope surface; 42. Horizontal plate; 43. Slide rod; 431. Spring ring. Detailed Implementation

[0026] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.

[0027] Please see Figure 1 and Figure 2 and Figure 3 and Figure 4This utility model provides a technical solution: a flange connection structure that is easy to position, including a first flange connector 1, a second flange connector 2 of the same specification on the side of the first flange connector 1, three sets of positioning grooves 21 in an annular shape on the outer side of the second flange connector 2, a screwing assembly 3 on the mating surface of the first flange connector 1 and the second flange connector 2, the screwing assembly 3 also includes a rotating ring 33 rotatably connected to the side of the first flange connector 1, three sets of slope plates 332 fixedly connected in an annular shape on the inner side of the rotating ring 33, and an inner extension assembly 4 on the side of the first flange connector 1 that can be pressed and contacted by the slope plates 332 when the rotating ring 33 rotates and pushed into the positioning groove 21 to complete the positioning;

[0028] This design solves the problem of existing technologies requiring the entire pipe to be rotated for adjustment during installation, which leads to inconvenience in confined spaces.

[0029] Please see Figure 1 and Figure 2 and Figure 3 and Figure 4 The screwing assembly 3 also includes a screw cap 31, which is rotatably connected to the outside of the first flange connector 1. The screwing assembly 3 also includes a worm gear 311, which is rotatably connected to the inside of the first flange connector 1, and the top of the worm gear 311 is fixedly connected to the screw cap 31.

[0030] The screwing assembly 3 also includes a rotating shaft 32, which is rotatably connected inside the first flange connector 1. The screwing assembly 3 also includes a worm gear 321, which is fixedly connected to one end of the rotating shaft 32. The worm gear 321 is in contact with the worm 311 and is meshed and rotatably connected.

[0031] The screwing assembly 3 also includes a gear 322, which is fixedly connected to the other end of the rotating shaft 32.

[0032] The screwing assembly 3 also includes a toothed groove group 331, which is distributed in a ring on the outside of the rotating ring 33. The toothed groove group 331 is in contact with the toothed disc 322 and is meshed and rotated.

[0033] The inner extension assembly 4 includes an inner extension seat 41, and the inner extension seat 41 has a slope 411 on its side, which matches the shape of the contact surface of the toothed disc 322.

[0034] The inner extension assembly 4 also includes a slide rod 43, which is symmetrically and fixedly connected in the slots on both sides of the inner extension seat 41. The inner extension assembly 4 also includes a spring ring 431, which is sleeved on the upper part of the outer side of the slide rod 43.

[0035] The inner extension assembly 4 also includes a horizontal plate 42, one side of which is fixedly connected to the first flange connector 1, and the horizontal plate 42 is slidably connected to the slide rod 43.

[0036] Working principle:

[0037] First, insert the side of the second flange connector 2 into the inner wall of the first flange connector 1, and observe the position of the screw holes on the outer side of the first flange connector 1 and the second flange connector 2 during insertion to complete the pre-positioning of the positioning groove 21 and the inner extension seat 41.

[0038] After insertion, the screw cap 31 can be turned to rotate the worm 311. At this time, the worm wheel 321 meshing on the side of the worm 311 will rotate synchronously and drive the rotating shaft 32 and the gear plate 322 to rotate. The self-locking effect of the meshing between the worm 311 and the rotating shaft 32 can prevent shaking after rotation, thus avoiding positional deviation. In particular, when the gear plate 322 rotates, it will drive the rotating ring 33 to rotate synchronously under the action of the tooth groove group 331. When the rotating ring 33 rotates, the slope plate 332 located on the inner side of the rotating ring 33 will press the slope surface 411 on the side of the inner extension seat 41. At this time, the inner extension seat 41 will be pushed towards the inner side of the rotating ring 33 due to the pressure. When each inner extension seat 41 is inserted into the positioning groove 21, the screw cap 31 is loosened. At this time, the pre-assembly of the second flange connector 2 and the first flange connector 1 is completed.

[0039] Meanwhile, when the cap 31 is screwed in reverse, the toothed disc 322 will rotate with the cap 31 and disengage from the inner extension seat 41. The inner extension seat 41 can then slide back under the elastic action of the spring ring 431 and retract from the positioning groove 21. This design also facilitates the quick disassembly of the second flange connector 2 and the first flange connector 1 in the later stages.

[0040] This design not only enables quick assembly and disassembly between the second flange connector 2 and the first flange connector 1, but also avoids operational inconvenience in confined spaces by using a single screw-on cap 31 method to assemble and disassemble the first flange connector 1 and the second flange connector 2.

[0041] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A flange connection structure for easy positioning, comprising a first flange connector (1), characterized in that, The first flange connector (1) is provided with a second flange connector (2) of the same specification on its side. The second flange connector (2) has three sets of positioning grooves (21) in a ring shape on its outer side. The mating surface of the first flange connector (1) and the second flange connector (2) is provided with a screwing assembly (3). The screwing assembly (3) also includes a rotating ring (33) rotatably connected to the side of the first flange connector (1). The inner side of the rotating ring (33) is fixedly connected with three sets of slope plates (332) in a ring shape. The side of the first flange connector (1) is also provided with an inner extension assembly (4) that can be pressed and contacted by the slope plates (332) when the rotating ring (33) rotates and pushed into the positioning groove (21) to complete the positioning.

2. The flange connection structure for easy positioning according to claim 1, characterized in that, The screwing assembly (3) also includes a screw cap (31), which is rotatably connected to the outside of the first flange connector (1). The screwing assembly (3) also includes a worm (311), which is rotatably connected to the inside of the first flange connector (1), and the top of the worm (311) is fixedly connected to the screw cap (31).

3. The flange connection structure for easy positioning according to claim 2, characterized in that, The screwing assembly (3) also includes a rotating shaft (32), which is rotatably connected inside the first flange connector (1). The screwing assembly (3) also includes a worm gear (321), which is fixedly connected to one end of the rotating shaft (32). The worm gear (321) is in contact with the worm (311) and is meshed and rotatably connected.

4. The flange connection structure for easy positioning according to claim 3, characterized in that, The screwing assembly (3) also includes a toothed disc (322), which is fixedly connected to the other end of the rotating shaft (32).

5. The flange connection structure for easy positioning according to claim 4, characterized in that, The screwing assembly (3) also includes a toothed groove group (331), which is distributed in a ring on the outside of the rotating ring (33). The toothed groove group (331) is in contact with the toothed disc (322) and is meshed and rotated.

6. The flange connection structure for easy positioning according to claim 5, characterized in that, The inner extension assembly (4) includes an inner extension seat (41), and the inner extension seat (41) has a slope (411) on its side, and the slope (411) matches the shape of the contact surface of the toothed disc (322).

7. A flange connection structure for easy positioning according to claim 6, characterized in that, The inner extension assembly (4) also includes a slide rod (43), which is symmetrically fixedly connected in the slots on both sides of the inner extension seat (41). The inner extension assembly (4) also includes a spring ring (431), which is sleeved on the upper part of the outer side of the slide rod (43).

8. A flange connection structure for easy positioning according to claim 7, characterized in that, The inner extension assembly (4) also includes a horizontal plate (42), one side of which is fixedly connected to the first flange connector (1), and the horizontal plate (42) is slidably connected to the slide rod (43).

Images