Spherical sealing movable joint

Abstract

The utility model discloses a spherical sealing movable joint, and relates to the technical field of the machinery manufacturing industry. The left joint comprises a left joint body, external threads are formed in the position, close to one side, of the outer ring of the left joint body, a left sealing gasket is arranged on the position, close to one side, of the inner wall of the left joint body, a concave face ball head sealing piece is arranged at the side end of the left sealing gasket, and a convex face ball head sealing piece is arranged on the side, away from the left sealing gasket, of the concave face ball head sealing piece. The side, away from the concave face ball head sealing piece, of the outer ring of the convex face ball head sealing piece is sleeved with a right sealing gasket. When the sealing surface of the ball head has scratches and pits to cause sealing failure, the ball head sealing element can be directly replaced, the joint body does not need to be cut off to weld a new movable joint, particularly in a flammable and explosive area, the risk of fire operation is avoided, and the problem that when the sealing surface of the ball head sealing element fails, the joint body needs to be cut off, so that the joint body cannot be welded is solved. Time and labor are wasted, and the fire operation risk is caused.

Description

TECHNICAL FIELD

[0001] The utility model relates to mechanical manufacturing industry technical field, concretely is a spherical surface sealing movable joint. BACKGROUND

[0002] The spherical surface movable joint is the small caliber pipeline joint often seen on the chemical enterprise, mechanical equipment, and plays the connecting role to the pipeline at both ends. The joint body is basically connected with the pipeline through welding. When the sealing fails, the joint body needs to be cut off from the pipeline, and a new joint body is welded again.

[0003] When the spherical surface sealing element fails, the joint body needs to be cut off, which not only takes time and effort, but also brings the risk of fire operation, especially in some flammable and explosive occasions. If the on-site fire operation is prohibited, the replacement cannot be carried out. In view of the above problems, the inventor puts forward a kind of spherical surface sealing movable joint to solve the above problems. UTILITY MODEL CONTENT

[0004] In order to solve the problem that the spherical surface sealing element fails and needs to be cut off, which not only takes time and effort, but also brings the risk of fire operation. The purpose of the utility model is to provide a kind of spherical surface sealing movable joint.

[0005] In order to solve the above technical problems, the utility model adopts the following technical scheme: a kind of spherical surface sealing movable joint, including left joint body, the outer circle of left joint body and the side near place are equipped with external thread, the inner wall of left joint body and the side near place are equipped with left sealing pad, the side end of left sealing pad is equipped with concave spherical head sealing element, the side of concave spherical head sealing element away from left sealing pad is equipped with convex spherical head sealing element, the outer circle of convex spherical head sealing element and the side away from concave spherical head sealing element is equipped with right sealing pad, the side of convex spherical head sealing element away from concave spherical head sealing element is equipped with right joint body, and convex spherical head sealing element is inserted in right joint body, the outer circle of left joint body and the thread at external thread place are threadedly connected with nut.

[0006] Preferably, the outer circle of left joint body and the side near center are fixedly connected with hexagonal body.

[0007] Preferably, the concave spherical head sealing element is circular, and the side end of convex spherical head sealing element is hemispherical.

[0008] Preferably, the right joint body is cylindrical.

[0009] Preferably, the nut is internally provided with internal thread.

[0010] Preferably, the left joint body, concave spherical head sealing element, right joint body and convex spherical head sealing element are internally provided with inner hole.

[0011] Preferably, the nut side end is symmetrically fixedly connected with micro electric push rods near the center, and a connecting disc is fixedly connected between the two micro electric push rod output ends.

[0012] Preferably, an oil-removing sponge is slidingly connected around the nut outer ring, and a connecting shaft is symmetrically fixedly connected to the oil-removing sponge side end near the center and fixedly connected with the connecting disc.

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

[0014] 1. When the ball head sealing surface has scratches and pits and thus sealing fails, the ball head sealing element can be directly replaced, without the need to cut off the joint body and weld a new joint, especially in flammable and explosive areas, thereby avoiding the risk of hot work, and thus the problem that the joint body needs to be cut off when the spherical sealing element fails, which is not only time-consuming and laborious but also brings the risk of hot work is solved.

[0015] 2. The concave-convex spherical head sealing element is a movable element, can be self-centered and adjusted, and the sealing performance is improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creative labor.

[0017] Figure 1 It is a schematic diagram of the outer shape structure of the spherical joint of the utility model.

[0018] Figure 2 It is a schematic diagram of the sectional structure of the spherical joint of the utility model.

[0019] Figure 3 It is a schematic diagram of the assembly structure of the spherical joint of the utility model.

[0020] Figure 4 It is a schematic diagram of the connecting disc structure of the spherical joint of the utility model.

[0021] In the figure: 1, left joint body; 2, concave spherical head sealing element; 3, nut; 31, micro electric push rod; 32, connecting disc; 33, connecting shaft; 34, oil-removing sponge; 4, right joint body; 5, convex spherical head sealing element; 6, right sealing gasket; 7, left sealing gasket. DETAILED DESCRIPTION

[0022] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present utility model.

[0023] Example: Figures 1-4 As shown, this utility model provides a technical solution: a spherical sealing union, including a left connector body 1, an external thread on the outer ring of the left connector body 1 near one side, a left sealing gasket 7 on the inner wall of the left connector body 1 near one side, a concave ball head seal 2 on the side end of the left sealing gasket 7, a convex ball head seal 5 on the side of the concave ball head seal 2 away from the left sealing gasket 7, a right sealing gasket 6 on the outer ring of the convex ball head seal 5 away from the concave ball head seal 2, a right connector body 4 on the side of the convex ball head seal 5 away from the concave ball head seal 2, and the convex ball head seal 5 is inserted inside the right connector body 4, and a nut 3 is threadedly connected to the outer ring of the left connector body 1 at the external thread.

[0024] In one possible implementation, a hexagonal body is fixedly connected to the outer ring of the left connector body 1 near the center.

[0025] The purpose of adopting the above technical solution is to facilitate tightening with a wrench during installation.

[0026] In one possible implementation, the concave ball head seal 2 is annular, and one end of the convex ball head seal 5 is hemispherical.

[0027] By adopting the above technical solution, one side of the concave ball head seal 2 is a flat surface and the other side is a concave spherical surface, and the other side of the convex ball head seal 5 is a concave spherical surface. The inner spherical surface of the concave ball head seal 2 and the outer spherical surface of the convex ball head seal 5 have the same curvature, thus ensuring their sealing.

[0028] In one possible implementation, the right connector body 4 is cylindrical.

[0029] By adopting the above technical solution, the cylinder is stepped.

[0030] In one possible implementation, the nut 3 has an internal thread.

[0031] By adopting the above technical solution, the thread profile of the internal thread of the nut 3 matches the external thread of the left connector body 1, and one end of the inner hole has a step.

[0032] In a possible implementation, the left joint body 1, the concave ball head seal 2, the right joint body 4 and the convex ball head seal 5 are internally provided with inner holes.

[0033] By adopting the technical scheme, the inner holes are provided with the same diameter, the diameter is matched with the pipeline, and the pipeline is inserted.

[0034] In a possible implementation, the micro electric push rods 31 are symmetrically and fixedly connected to the side end of the nut 3 near the center, and the connecting disc 32 is fixedly connected between the output ends of the two micro electric push rods 31.

[0035] By adopting the technical scheme, the micro electric push rods 31 are arranged at the side end of the nut 3, so as to drive the connecting disc 32 to move, and the micro electric push rods 31 are micro type.

[0036] In a possible implementation, the oil-removing sponge wiper 34 is slidably connected around the nut 3, the oil-removing sponge wipers 34 are symmetrically and fixedly connected to the connecting shafts 33 near the center, and the connecting shafts 33 are fixedly connected to the connecting disc 32.

[0037] By adopting the technical scheme, the connecting disc 32 can drive the two connecting shafts 33 to move horizontally, so that the fixedly connected oil-removing sponge wipers 34 move around the nut 3, and the oil stains on the nut 3 are removed.

[0038] Working principle: the spherical movable joint is a common small-diameter pipeline joint in chemical enterprises and mechanical equipment, and is used for connecting two pipelines. During installation, the left seal 7 and the concave ball head seal 2 are installed in the groove of the left joint body 1, the right joint body 4 is installed in the nut 3, the right sealing gasket 6 is sleeved on the cylindrical end of the convex ball head seal 5, and then the right joint body 4 is inserted into the right joint body 4. Finally, the nut 3 is screwed onto the outer thread of the left joint body 1, and the joint is tightened. The other end of the left joint body 1 and the right joint body 4 is welded to the pipeline to be connected. The ball head seal is designed as two independent movable parts, one is a convex ball head seal, and the other is a concave ball head seal. Seals are installed behind the two ball head seals to seal the joint body and the ball head seal. When the seal fails, the joint body needs to be cut off, which not only wastes time and effort, but also brings the risk of hot work.

[0039] By simultaneously starting the two micro electric push rods 31, the fixedly connected connecting disc 32 moves horizontally, and then the two fixedly connected connecting shafts 33 drive the corresponding oil-removing sponge wipers 34 to slide around the nut 3, thereby removing the oil stains on the nut 3, preventing the hand from slipping during the rotation of the nut 3, and causing the operation to fail.

[0040] It will be apparent to those skilled in the art that various modifications and variations can be made to the present application without departing from the spirit or scope of the application. Thus, it is intended that the present application cover modifications and variations of this application provided they come within the scope of the appended claims and their equivalents.

Claims

1. A spherical sealing union joint comprising a left joint body (1), characterized in that: The outer circle of the left joint body (1) is provided with external threads near one side, the inner wall of the left joint body (1) is provided with a left sealing pad (7) near one side, the side end of the left sealing pad (7) is provided with a concave ball head sealing piece (2), the side of the concave ball head sealing piece (2) away from the left sealing pad (7) is provided with a convex ball head sealing piece (5), the outer circle of the convex ball head sealing piece (5) is sleeved with a right sealing pad (6) away from the concave ball head sealing piece (2), the side of the convex ball head sealing piece (5) away from the concave ball head sealing piece (2) is provided with a right joint body (4), and the convex ball head sealing piece (5) is inserted into the right joint body (4), and the outer circle of the left joint body (1) is threadedly connected with a nut (3) at the external threads.

2. A spherical seal union as defined in claim 1, wherein The outer circle of the left joint body (1) is fixedly connected with a hexagonal body near the center.

3. A spherical seal union as defined in claim 1, wherein The concave ball head sealing piece (2) is a circular ring, and one side end of the convex ball head sealing piece (5) is a hemisphere.

4. A spherical seal union as defined in claim 1, wherein The right joint body (4) is a cylinder.

5. A spherical seal union as defined in claim 1 wherein, The nut (3) is internally provided with internal threads.

6. A spherical seal union as defined in claim 1, wherein, The left joint body (1), the concave ball head sealing piece (2), the right joint body (4) and the convex ball head sealing piece (5) are internally provided with inner holes.

7. A spherical seal union as defined in claim 1 wherein, The side end of the nut (3) is symmetrically fixedly connected with a micro electric push rod (31) near the center, and the output ends of the two micro electric push rods (31) are fixedly connected with a connecting disc (32).

8. A spherical seal union as defined in claim 7, wherein, The outer circle of the nut (3) is sleeved with a sliding connection of an oil-removing sponge (34), the side end of the oil-removing sponge (34) is symmetrically fixedly connected with a connecting shaft (33) near the center, and the connecting shaft (33) is fixedly connected with the connecting disc (32).

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