Anti-falling metal hose connector

Abstract

The utility model belongs to the field of pipeline accessories, particularly relates to an anti-falling metal hose connector, and aims to solve the problems that in the prior art, a connector is loosened under pressure, but most existing hose connectors cannot be adjusted, and adopts the following scheme that the anti-falling metal hose connector comprises a connector base and two movable pressing sleeves, the joint base and the two movable pressing sleeves jointly form a joint shell, annular grooves are formed in the two sides of the joint base, polytetrafluoroethylene gaskets are placed in the annular grooves, a plurality of straight grooves are formed in the inner walls of the two sides of the joint base and the inner walls of the two movable pressing sleeves, and positioning cage sleeves are slidably connected into the straight grooves in the two sides. Under the cooperation of the adjusting bolt and the connector shell, the clamping ring and the teflon gasket drive the annular metal pipe to be tightly attached to the teflon gasket to achieve sealing, so that leakage is prevented, and an operator can find out abnormity in time when leakage occurs to the connector through the drain hole formed in the bottom of the connector shell and the allochroic silica gel placed in the observation box.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline accessories, in particular to an anti-falling metal hose connector. Background Art

[0002] Metal hoses are important connecting components in engineering technology. They are made of corrugated flexible pipes, mesh sleeves and joints. There are two types of corrugated pipes, one is a spiral corrugated pipe and the other is an annular corrugated pipe. The annular corrugated pipe is rolled from seamless pipes or welded pipes and is usually shorter. The characteristics of the annular corrugated pipe are good elasticity and low rigidity. The mesh sleeve of the metal hose is made of stainless steel wire, which not only increases the pressure of the metal hose, but also protects the bellows.

[0003] After the annular bellows has been used for a period of time, the joint becomes loose under pressure, but most existing hose joints cannot be adjusted, which eventually leads to leakage, thus affecting the normal use of the pipeline. Therefore, an anti-drop metal hose joint is proposed. Utility Model Content

[0004] The utility model aims to solve the disadvantages in the prior art that the joints become loose under pressure, but most of the existing hose joints cannot be adjusted, and proposes an anti-falling metal hose joint.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A metal hose connector that prevents falling off, comprising a connector base and two movable compression sleeves, wherein the connector base and the two movable compression sleeves together constitute a connector housing, annular grooves are provided on both sides of the connector base, polytetrafluoroethylene gaskets are placed in the annular grooves, a plurality of straight grooves are provided on the inner walls of both sides of the connector base and the inner walls of the two movable compression sleeves, positioning cage sleeves are slidably connected in the straight grooves on both sides, the positioning cage sleeves are composed of two semicircular cage sleeves spliced ​​together, and both ends of the connector housing are fixedly connected with pressure plates by bolts;

[0007] A leakage observation mechanism is located at the bottom of the joint base and is used to observe leakage conditions of the joint.

[0008] In a possible design, the semicircular cage includes a top plate clamping ring, and a plurality of sliding rods are fixedly connected to the circumference of the clamping ring. The fixed connection is between one end of the sliding rod away from the clamping ring, and the plurality of sliding rods are respectively slidably connected in a plurality of straight grooves.

[0009] In a possible design, the leakage observation mechanism includes an observation box, which is snap-connected to the bottom of the joint base. Color-changing silica gel is placed inside the observation box. Grooves are provided on the inner walls on both sides of the observation box. A plurality of drainage holes are provided at the bottom of the joint base. Two convex grooves are fixedly connected to the outer wall of the bottom of the joint base, and the grooves and convex grooves are used in combination.

[0010] In a possible design, a pair of fixed plates are fixedly connected between the two movable pressure sleeves and the joint base, a connecting rod is rotatably connected between the pair of fixed plates on the same vertical plane, two threaded plates are fixedly connected to the other side of the joint base, and the other sides of the two movable pressure sleeves are fixedly connected to countersunk plates.

[0011] In a possible design, a plurality of through holes are provided on one side of the pressure plate and the positioning cage sleeve on both sides, and a plurality of threaded holes are provided on both sides of the joint housing, and the plurality of through holes are used in conjunction with the threaded holes.

[0012] In a possible design, the observation box is made of transparent acrylic.

[0013] In the present application, when in use, open the movable pressing sleeve, place the polytetrafluoroethylene gasket in the annular grooves on both sides of the joint base, and then place the semicircular cage sleeve on one side of the joint base. After pressing several raised rings at the ends of the annular metal hose together, the annular metal hose is placed on the semicircular cage sleeve through the pressing plate and several raised rings at the ends are placed on the outside of the clamping ring, and then the other semicircular cage sleeve is placed inside the movable pressing sleeve. After closing the movable pressing sleeve, tighten the fixing bolts, and then pass the adjusting bolts through the pressing plate and the positioning cage sleeve to connect to the joint housing. When locking, the adjusting bolts push the pressing plate and the positioning cage sleeve to move, and the clamping ring on the positioning cage sleeve pushes the annular metal tube close to the polytetrafluoroethylene gasket, and finally fit together to achieve sealing. After locking, there is a certain gap between the positioning cage sleeve and the joint housing. When the joint leaks, water drips into the bottom observation box through the drainage hole at the bottom of the joint base. The color-changing silica gel placed in the transparent observation box absorbs water and changes color, so that the operator can clearly observe the leakage. After the operator finds the leakage, he turns the adjusting bolt to make the metal tube fit with the polytetrafluoroethylene gasket to achieve sealing again.

[0014] Beneficial effects:

[0015] In the utility model, the anti-drop-off metal hose joint, the clamp ring and the PTFE gasket cooperate with the adjusting bolt and the joint housing so that the annular metal tube and the PTFE gasket are tightly fitted to achieve sealing, and the sealing is achieved again by adjusting the adjusting bolt in case of leakage;

[0016] In the utility model, the anti-falling metal hose connector is provided with a drainage hole at the bottom of the connector housing and a color-changing silica gel is placed in the observation box, so that the operator can find the abnormality in time when the connector leaks;

[0017] In the utility model, with the cooperation of the adjusting bolt and the joint housing, the clamping ring and the polytetrafluoroethylene gasket drive the annular metal tube to fit tightly with the polytetrafluoroethylene gasket to achieve sealing, thereby preventing leakage. By opening a drainage hole at the bottom of the joint housing and placing color-changing silica gel in the observation box, the operator can promptly discover the abnormality when leakage occurs in the joint. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a three-dimensional structural schematic diagram from the first perspective of an anti-falling metal hose connector proposed by the utility model;

[0019] Figure 2 A schematic diagram of the three-dimensional structure of an anti-falling metal hose connector proposed by the utility model from a second perspective;

[0020] Figure 3 This is a schematic diagram of the internal structure of an anti-falling metal hose connector proposed by the utility model;

[0021] Figure 4 The utility model is a schematic diagram of a semicircular cage structure of an anti-falling metal hose connector.

[0022] Figure 5 The utility model provides a schematic diagram of the position of the drainage hole of an anti-falling metal hose connector.

[0023] In the figure: 1. joint base; 2. movable pressure sleeve; 3. countersunk plate; 4. threaded plate; 5. pressure plate; 6. fixed plate; 7. connecting rod; 8. polytetrafluoroethylene gasket; 9. semicircular cage; 901. top plate; 902. sliding rod; 903. retaining ring; 10. convex groove; 11. concave groove; 12. observation box; 13. color-changing silicone. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0025] Example 1

[0026] Reference Figure 3, an anti-falling metal hose joint, comprising a joint base 1 and two movable pressing sleeves 2, the joint base 1 and the two movable pressing sleeves 2 together constitute a joint shell, annular grooves are provided on both sides of the joint base 1, and polytetrafluoroethylene gaskets 8 are placed in the annular grooves, the thickness of the polytetrafluoroethylene gaskets 8 is greater than the depth of the annular grooves, the inner walls of both sides of the joint base 1 and the inner walls of the two movable pressing sleeves 2 are provided with a plurality of straight grooves, and the straight grooves on both sides are slidably connected with positioning cage sleeves, the positioning cage sleeves are composed of two semicircular cage sleeves 9 spliced ​​together, the two semicircular cage sleeves 9 cooperate to clamp the annular metal hose, thereby driving the metal hose to move and then adjusting the metal hose to extrude the polytetrafluoroethylene gasket 8, both ends of the joint shell are fixedly connected with a pressure plate 5 by bolts, and the pressure of the pressure plate 5 on the semicircular cage sleeve 9 is adjusted by changing the force applied to the bolts;

[0027] The leakage observation mechanism is located at the bottom of the joint base 1 and is used to observe the leakage of the joint.

[0028] Reference Figure 4 The semicircular cage 9 includes a top plate 901 and a snap ring 903, and a plurality of slide bars 902 are fixedly connected to the circumference of the snap ring 903. 901 is fixedly connected between one end of the slide bar 902 away from the snap ring 903, and the plurality of slide bars 902 are slidably connected in a plurality of straight grooves.

[0029] Reference Figure 3 and Figure 5 The leakage observation mechanism includes an observation box 12, which is snapped onto the bottom of the joint base 1. A color-changing silica gel 13 is placed inside the observation box 12. Grooves 11 are provided on the inner walls on both sides of the observation box 12. A plurality of drainage holes are provided at the bottom of the joint base 1. Water drips onto the color-changing silica gel 13 through the drainage holes. The color-changing silica gel 13 changes color after absorbing water, which is convenient for the staff to make subsequent adjustments or maintenance. Two convex grooves 10 are fixedly connected to the outer wall at the bottom of the joint base 1. The grooves 11 and the convex grooves 10 are used in combination to make it easy to disassemble the observation box 12 and replace the color-changing silica gel 13.

[0030] Reference Figure 1-Figure 2 A pair of fixing plates 6 are fixedly connected between the two movable pressing sleeves 2 and the joint base 1, a connecting rod 7 is rotatably connected between the pair of fixing plates 6 on the same vertical plane, two threaded plates 4 are fixedly connected to the other side of the joint base 1, and a countersunk plate 3 is fixedly connected to the other sides of the two movable pressing sleeves 2. The two movable pressing sleeves 2 are fixed together with the joint base 1 by locking bolts.

[0031] Reference Figure 3 A plurality of through holes are provided on both sides of the pressure plates 5 and one side of the positioning cage sleeve, and a plurality of threaded holes are provided on both sides of the joint shell, and the plurality of through holes are used in conjunction with the threaded holes.

[0032] Reference Figure 3The material of the observation box 12 is transparent acrylic, which is convenient for the staff to observe the water leakage.

[0033] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An anti-drop metal hose connector, comprising a connector base (1) and two movable compression sleeves (2), characterized in that: The joint base (1) and the two movable pressing sleeves (2) together form a joint housing, annular grooves are provided on both sides of the joint base (1), polytetrafluoroethylene gaskets (8) are placed in the annular grooves, a plurality of straight grooves are provided on the inner walls of both sides of the joint base (1) and the inner walls of the two movable pressing sleeves (2), positioning cage sleeves are slidably connected in the straight grooves on both sides, and the positioning cage sleeves are composed of two semicircular cage sleeves (9) spliced ​​together, and both ends of the joint housing are fixedly connected to pressure plates (5) by bolts; A leakage observation mechanism is located at the bottom of the joint base (1) and is used to observe leakage conditions of the joint.

2. The anti-falling metal hose connector according to claim 1, characterized in that: The semicircular cage (9) includes a top plate (901) and a snap ring (903), wherein a plurality of slide bars (902) are fixedly connected to the circumference of the snap ring (903), wherein the (901) is fixedly connected between one end of the slide bar (902) away from the snap ring (903), and the plurality of slide bars (902) are respectively slidably connected in a plurality of straight grooves.

3. The anti-falling metal hose connector according to claim 1, characterized in that: The leakage observation mechanism comprises an observation box (12), the observation box (12) is snap-connected to the bottom of the joint base (1), a color-changing silica gel (13) is placed inside the observation box (12), grooves (11) are provided on the inner walls on both sides of the observation box (12), a plurality of drainage holes are provided on the bottom of the joint base (1), and two convex grooves (10) are fixedly connected to the outer wall of the bottom of the joint base (1), and the grooves (11) and the convex grooves (10) are used in combination.

4. The anti-dropping metal hose connector according to claim 1, characterized in that: A pair of fixing plates (6) are fixedly connected between the two movable pressing sleeves (2) and the joint base (1); a connecting rod (7) is rotatably connected between the pair of fixing plates (6) on the same vertical plane; two threaded plates (4) are fixedly connected to the other side of the joint base (1); and a countersunk plate (3) is fixedly connected to the other side of the two movable pressing sleeves (2).

5. The anti-drop metal hose connector according to claim 2, characterized in that: The pressure plates (5) on both sides and one side of the positioning cage sleeve are provided with a plurality of through holes, and the joint shell is provided with a plurality of threaded holes on both sides, and the plurality of through holes are used in conjunction with the threaded holes.

6. The anti-dropping metal hose connector according to claim 3, characterized in that: The material of the observation box (12) is transparent acrylic.

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