Metal flange

Abstract

The utility model provides a metal flange, which belongs to the technical field of flanges, and comprises a first flange main body, a second flange main body, a mounting assembly, a first connecting piece, a second connecting piece, a third connecting piece and a fourth connecting piece, wherein the mounting assembly comprises a pinch plate ring, a clamping ring, a clamping opening, two rubber pads, a mounting groove, a driving shaft, a torsional spring, a clamping claw and a rubber layer, and the pinch plate ring is fixedly arranged on the outer wall of the second flange body through bolts. Through the mutual matching design of the mounting assembly, the clamping jaw and the clamping opening and the combination of the automatic resilience force of the torsional spring, the first flange body and the second flange body can be quickly locked during butt joint, the mounting time is remarkably shortened, the flange is particularly suitable for narrow space or high-altitude operation, the torsional spring continuously applies pressure to the clamping jaw, it is ensured that the clamping opening is tightly engaged all the time, and the working efficiency is improved. And even if being vibrated or impacted, the spring is not easy to loosen and is suitable for a dynamic load environment.

Description

Technical Field

[0001] This utility model belongs to the field of flange technology, and specifically relates to a metal flange. Background Technology

[0002] Flange connections are a widely used method in piping systems, machinery, and industrial facilities to ensure reliable connection of components such as pipes, valves, and pumps. Traditional flange connections typically employ bolt fastening, where multiple bolts are evenly distributed around the flange circumference and gradually tightened to achieve a seal and fixation. However, existing flange connection technology still has several shortcomings in practical applications, particularly in terms of installation efficiency, seismic performance, and long-term stability. Specific problems include:

[0003] Traditional flange connections require manual adjustment of the flange position to ensure complete alignment of bolt holes. This is extremely inconvenient, time-consuming, and labor-intensive, especially in confined spaces or at heights. Bolts must be tightened gradually in a diagonal sequence to prevent uneven stress on the flange and subsequent leakage. However, this process is cumbersome and requires highly skilled operators. Under dynamic loads (such as pipeline vibration or equipment operating impact), the bolt connections of traditional flanges are prone to loosening due to long-term vibration, leading to seal failure and even leakage accidents. Existing flanges typically rely solely on the mechanical tightening force of bolts and lack auxiliary locking mechanisms, making them unable to effectively resist the risk of loosening caused by vibration or impact. Utility Model Content

[0004] The purpose of this invention is to provide a metal flange that addresses the problems raised in the background art.

[0005] A metal flange, comprising,

[0006] The first flange body and the second flange body are connected by internal hexagon bolts to the inner walls of the first flange body and the second flange body;

[0007] An installation assembly is disposed on the outer wall of the first flange body and the second flange body. The installation assembly includes a snap ring, a clamping ring, a clamping opening, two rubber pads, a mounting groove, a drive shaft, a torsion spring, clamping claws, and a rubber layer. The snap ring is fixed to the outer wall of the second flange body by bolts. The clamping ring is fixed to the outer wall of the first flange body by bolts. The clamping opening is located on the outer wall of the snap ring. The two rubber pads are respectively embedded in the recesses of the first and second flange bodies. The mounting groove is located on the outer wall of the clamping ring. The drive shaft is embedded in the inner wall of the mounting groove. The torsion spring is sleeved on the outer wall of the drive shaft. One end of the torsion spring is fixed to the outer wall of the clamping claws. The clamping claws are rotatably sleeved on the outer wall of the drive shaft. The rubber layer is adhered to the outer wall of the clamping claws. The clamping claws and the clamping opening are matched.

[0008] Further, the outer wall of the first flange body and the second flange body is sleeved with a protective shell.

[0009] Further, the inner wall of the first flange body is extended with a guide pipe.

[0010] Further, the guide pipe is matched with the second flange body.

[0011] Further, one end of the outer wall of the clamping claw is protruded.

[0012] Further, one end of the clamping opening is outwardly extended.

[0013] Compared with the prior art, the utility model has the advantages that:

[0014] The installation assembly is matched with the structure design: the mutual matching design of the clamping claw and the clamping opening, in combination with the automatic rebound force of the torsional spring, makes the first flange body and the second flange body be able to be quickly locked in position when being docked, without manual repeated adjustment, significantly shortens the installation time, the matching of the guide pipe and the second flange body further simplifies the alignment process, is especially suitable for narrow space or high-altitude operation, the torsional spring continuously exerts pressure on the clamping claw, ensures that the clamping opening is always tightly engaged, is not easy to be loosened even if being vibrated or impacted, is suitable for dynamic load environment, the double buffering design of the rubber pad and the rubber layer effectively absorbs the micro displacement between the flanges, reduces the direct friction of metal, prolongs the service life. BRIEF DESCRIPTION OF DRAWINGS

[0015] The accompanying drawings are included to provide a further understanding of the utility model, and constitute a part of the specification, and are used to explain the utility model together with embodiments of the utility model, and do not constitute the limitation to the utility model. In the drawings:

[0016] Figure 1 It is the perspective view of the utility model;

[0017] Figure 2 It is the partial half cutaway perspective view of the utility model;

[0018] Figure 3 It is the perspective view of the utility board ring of the utility model;

[0019] Figure 4 It is the enlarged schematic view of A of the utility model.

[0020] In the drawing: 1, first flange body; 2, second flange body; 3, protective shell; 4, inner hexagonal bolt; 5, clamping ring; 6, clamping ring; 101, guide pipe; 501, clamping opening; 502, rubber pad; 601, installation groove; 602, driving shaft; 603, torsional spring; 604, clamping claw; 605, rubber layer. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0022] In the description of the present application, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom end" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0023] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "provided with", "sleeved / connected", "connected" and the like should be broadly understood, for example, "connected" can be fixedly connected, or can be detachably connected, or integrally connected; can be mechanically connected, or can be electrically connected; can be directly connected, or can be indirectly connected through an intermediate medium; can be internal communication of two elements. For those skilled in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0024] Please refer to Figures 1-4 The technical solutions provided by the present embodiment are as follows:

[0025] A metal flange comprises,

[0026] The first flange body 1 and the second flange body 2 are internally connected with the inner hexagonal bolt 4.

[0027] The mounting assembly is arranged at the outer wall of the first flange body 1 and the second flange body 2, wherein: the mounting assembly comprises a buckle ring 5, a clamping ring 6, a clamping opening 501, two rubber pads 502, a mounting groove 601, a driving shaft 602, a torsional spring 603, a clamping claw 604 and a rubber layer 605, the buckle ring 5 is arranged at the outer wall of the second flange body 2 through bolt fixing, the clamping ring 6 is arranged at the outer wall of the first flange body 1 through bolt fixing, the clamping opening 501 is arranged at the outer wall of the buckle ring 5, the two rubber pads 502 are respectively embedded in the recesses of the first flange body 1 and the second flange body 2, the mounting groove 601 is arranged at the outer wall of the clamping ring 6, the driving shaft 602 is embedded in the inner wall of the mounting groove 601, the torsional spring 603 is sleeved on the outer wall of the driving shaft 602, one end of the torsional spring 603 is fixedly arranged at the outer wall of the clamping claw 604, the clamping claw 604 is rotatably sleeved on the outer wall of the driving shaft 602, and the rubber layer 605 is adhesively arranged at the outer wall of the clamping claw 604; the clamping claw 604 and the clamping opening 501 are matched with each other.

[0028] In the embodiment of the utility model, the mounting assembly, the matching structure design: the mutual matching design of clamping claw 604 and clamping opening 501, in combination with the automatic rebound force of torsional spring 603, make first flange body 1 and second flange body 2 can be locked position when butt joint quickly, do not need artificial repeated adjustment, significantly shorten the installation time, the matching of guide pipe 101 and second flange body 2 further simplifies the alignment process, especially suitable for narrow space or high-altitude operation, torsional spring 603 continuously exerts pressure on clamping claw 604, ensure that clamping opening 501 is always tightly engaged, even if subjected to vibration or impact, it is not easy to loosen, suitable for dynamic load environment, the double buffering design of rubber pad 502 and rubber layer 605 effectively absorbs the micro-displacement between flanges, reduces the direct friction of metal, prolongs the service life.

[0029] Specifically, the outer walls of the first flange body 1 and the second flange body 2 are sleeved with protective shells 3.

[0030] In the embodiment of the utility model, the protective shell 3 can protect the parts of the mounting assembly and avoid being exposed to the external environment.

[0031] Specifically, the inner wall of the first flange body 1 extends to provide a guide pipe 101.

[0032] In the embodiment of the utility model, the inner wall of the first flange body 1 extends to provide a guide pipe 101, which can ensure stable conveying.

[0033] Specifically, the guide pipe 101 and the second flange body 2 are matched with each other.

[0034] In the embodiment of the utility model, the guide pipe 101 and the second flange body 2 are matched with each other, which can ensure the sealing performance.

[0035] Specifically, the outer wall of one end of the clamping jaw 604 is provided with a protrusion.

[0036] In the specific embodiment of the utility model, the outer wall of one end of the clamping jaw 604 is provided with a protrusion, which can ensure its stable clamping function.

[0037] Specifically, the opening of one end of the clamping port 501 extends outward.

[0038] In the specific embodiment of the utility model, the opening of one end of the clamping port 501 extends outward, which can ensure the stability of clamping.

[0039] Working principle:

[0040] The buckle plate ring 5 is fixed on the outer wall of the second flange body 2 through a bolt, the clamping ring 6 is fixed on the outer wall of the first flange body 1 through a bolt, the clamping jaw 604 (installed on the clamping ring 6) can rotate freely and keep a pre-tightening state under the action of the torsional spring 603, the rubber pad 502 is embedded in the recessed part of the butt joint surface of the first flange body 1 and the second flange body 2, ensuring the sealing property, the protective shell 3 is sleeved on the outer wall of the flange to prevent external corrosion or mechanical damage, the guide pipe 101 of the first flange body 1 is inserted into the corresponding interface of the second flange body 2, ensuring that the two flanges are coaxial and aligned, when the two flanges are close, the protruding end of the clamping jaw 604 contacts the clamping port 501 of the buckle plate ring 5, because the opening of the clamping port 501 extends outward, the clamping jaw 604 is extruded when contacting and rotates around the driving shaft 602, compressing the torsional spring 603, when the clamping jaw 604 slides into the clamping port 501, the torsional spring 603 rebounds, making the clamping jaw 604 firmly clamped on the buckle plate ring 5, completing automatic locking, the rubber layer 605 increases the friction force to prevent sliding or loosening, the two flange bodies are further fastened by using the internal hexagonal bolt 4, ensuring the connection strength, the rubber pad 502 is further compressed after being pressed by the bolt, improving the sealing property, the torsional spring 603 continuously applies pressure to prevent the clamping jaw 604 from loosening due to vibration, the rubber pad 502 and the rubber layer 605 absorb micro-vibration, reducing metal wear, and the protective shell 3 prevents the external environment (such as corrosive medium and mechanical impact) from affecting the flange structure.

[0041] Finally, it should be noted that: the above only for preferred embodiments of the utility model, and not for limiting the utility model, although the utility model is described in detail with reference to the foregoing embodiments, for those skilled in the art, it still can be modified to the technical scheme recorded in the foregoing each embodiment, or equivalent replacement is made to part of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A metal flange, characterized in that, The utility model relates to a flange assembly, including, First flange body (1) with second flange body (2), the inner wall of first flange body (1) with second flange body (2) is connected with the inner hexagonal bolt (4); Install the component, be located at the outer wall of first flange body (1) with second flange body (2), wherein: the installation component includes the buckle ring (5), clamping ring (6), clamping mouth (501), two rubber pads (502), installation groove (601), drive shaft (602), torsional spring (603), clamping claw (604) with rubber layer (605), the buckle ring (5) is set up at the outer wall of second flange body (2) through bolt fixing, clamping ring (6) is set up at the outer wall of first flange body (1) through bolt fixing, clamping mouth (501) is opened at the outer wall of buckle ring (5), two rubber pads (502) are respectively embedded in the recess of first flange body (1) with second flange body (2), installation groove (601) is opened at the outer wall of clamping ring (6), drive shaft (602) is embedded in the inner wall of installation groove (601), torsional spring (603) is sleeved on the outer wall of drive shaft (602), one end of torsional spring (603) is fixedly arranged at the outer wall of clamping claw (604), clamping claw (604) is rotatably sleeved on the outer wall of drive shaft (602), rubber layer (605) is adhesively arranged on the outer wall of clamping claw (604), and clamping claw (604) is matched with clamping mouth (501).

2. A metal flange according to claim 1, characterized in that The outer wall of first flange body (1) and second flange body (2) is sleeved with protective shell (3).

3. A metal flange according to claim 2, characterized in that The inner wall of first flange body (1) is extended and provided with guide pipe (101).

4. A metal flange according to claim 3, characterized in that The guide pipe (101) is matched with second flange body (2).

5. A metal flange according to claim 4, characterized in that One end of the outer wall of the clamping claw (604) is protrudingly arranged.

6. A metal flange according to claim 5, characterized in that One end of the clamping mouth (501) is outwardly extended and arranged.

Images