A sealed conduit expander

Abstract

The utility model discloses a sealed pipeline retractor relates to pipeline retractor technical field, including first sleeve, sliding slot and second sleeve, the outer wall of first sleeve is established with sliding slot, and the bottom of sliding slot inside is established with a plurality of trapezoidal groove, the outer wall of first sleeve is equipped with second sleeve, the outer wall mounting of first sleeve has the sealing ring, and the outer wall of sealing ring is pasted with sealing pad, the bottom of second sleeve is installed with the sliding block of being compatible with the inside of sliding slot, and the inside setting of sliding block has the positioning mechanism for fixing second sleeve position, this device has the engagement of rotating screw knob and thread layer inner wall to the upward movement extrusion rigid spring with the trapezoidal block at the place of threaded knob driving plug rod, makes trapezoidal block and trapezoidal groove in separation, then pushes second sleeve to right side, then second sleeve drives sliding block to slide in sliding slot, and then adjusts second sleeve in first sleeve position.

Description

Technical Field

[0001] This utility model relates to the field of pipeline expansion joint technology, specifically a sealed pipeline expansion joint. Background Technology

[0002] Pipeline expansion joints (also known as expansion joints, expansion valves, or compensators) are devices used to compensate for the displacement of pipelines caused by thermal expansion and contraction, vibration, or foundation settlement. They are widely used in water supply and drainage, petrochemical, heating, ventilation and air conditioning and other fields.

[0003] However, existing sealed pipe expansion joints have the following problems during use: traditional sleeve-type expansion joints are difficult to adjust in length, require professional personnel for debugging, and improper installation can easily lead to seal failure or damage, thus affecting sealing performance. Utility Model Content

[0004] The purpose of this invention is to provide an adhesion testing device for aluminum pot coatings to solve the related problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a wastewater treatment device for metal surfaces, comprising a first sleeve, a chute, and a second sleeve. The outer wall of the first sleeve is provided with a chute, and the bottom end of the chute is provided with a plurality of trapezoidal grooves. The second sleeve is fitted onto the outer wall of the first sleeve. A sealing ring is installed on the outer wall of the first sleeve, and a sealing gasket is pasted on the outer wall of the sealing ring. A slider adapted to the inside of the chute is installed at the bottom end of the second sleeve, and a positioning mechanism for fixing the position of the second sleeve is provided inside the slider.

[0006] As a preferred embodiment of the sealing pipe expansion joint of this utility model, positioning screw holes are provided on the outer walls of both the first sleeve and the second sleeve.

[0007] As a preferred embodiment of the sealing pipe expansion joint of this utility model, the positioning mechanism includes a movable groove and a piston block. The movable groove is provided inside the second sleeve, and the piston block is provided inside the movable groove. A through-slider rod is installed inside the piston block through a bearing, and a trapezoidal block adapted to the inner wall of the trapezoidal groove is installed at the bottom end of the through-slider rod.

[0008] As a preferred embodiment of the sealing pipe expansion joint of this utility model, the top of the movable groove is provided with a threaded layer, and the top of the insertion rod is equipped with a threaded knob that meshes with the inside of the threaded layer.

[0009] As a preferred embodiment of the sealing pipe expansion joint of this utility model, a rigid spring is sleeved on the outer wall of the insertion rod, and the top and bottom ends of the rigid spring are respectively connected to the movable groove and the side wall of the piston block.

[0010] The beneficial effects of this utility model of a sealed pipe expansion joint are as follows:

[0011] 1. This utility model uses a rotating threaded knob to engage with the inner wall of the threaded layer. The threaded knob drives the insert rod and the trapezoidal block to move upward and compress the rigid spring, causing the trapezoidal block to separate from the trapezoidal groove. Then, the second sleeve is pushed to the right, and the second sleeve drives the slider to slide in the groove, thereby adjusting the position of the second sleeve in the first sleeve.

[0012] 2. This utility model uses the contact between the sealant at the second sleeve and the sealing gasket to generate friction, and the sealing gasket is squeezed and tightly adheres to the sealing ring, thereby sealing the position of the second sleeve and the first sleeve, and satisfying the sealing effect during movement. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the front sectional view of the present invention;

[0014] Figure 2 For the present utility model Figure 1 A magnified structural diagram at point A;

[0015] Figure 3 For the present utility model Figure 1 A magnified structural diagram at point B;

[0016] Figure 4 This is a front view schematic diagram of the present utility model.

[0017] In the diagram: 1. First sleeve; 2. Slide groove; 3. Second sleeve; 4. Slider; 5. Trapezoidal groove; 6. Sealing gasket; 7. Sealing ring; 8. Movable groove; 9. Piston block; 10. Insert rod; 11. Trapezoidal block; 12. Rigid spring; 13. Threaded layer; 14. Threaded knob. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Example 1, such as Figure 1-2As shown, this utility model provides a technical solution: a sealing pipe expansion joint, including a first sleeve 1, a sliding groove 2, and a second sleeve 3. The outer wall of the first sleeve 1 is provided with a sliding groove 2, and the bottom end of the sliding groove 2 is provided with multiple trapezoidal grooves 5. The second sleeve 3 is fitted onto the outer wall of the first sleeve 1. A sealing ring 7 is installed on the outer wall of the first sleeve 1, and a sealing gasket 6 is pasted on the outer wall of the sealing ring 7. Positioning screw holes are provided on the outer walls of both the first sleeve 1 and the second sleeve 3. Friction is generated by the sealant at the second sleeve 3 contacting the sealing gasket 6, and the sealing gasket 6 is squeezed and tightly adhered to the sealing ring 7, thereby sealing the position of the second sleeve 3 and the first sleeve 1.

[0020] Example 2, as Figure 1-4 As shown, this utility model provides a technical solution: a sealed pipe expansion joint, including a second sleeve 3 with a slider 4 adapted to the inside of a groove 2 installed at the bottom end, and a positioning mechanism for fixing the position of the second sleeve 3 is provided inside the slider 4. The positioning mechanism includes a movable groove 8 and a piston block 9. The movable groove 8 is opened inside the second sleeve 3, and the piston block 9 is provided inside the movable groove 8. An insert rod 10 that penetrates the slider 4 is installed inside the piston block 9 through a bearing, and a trapezoidal block 11 adapted to the inner wall of the trapezoidal groove 5 is installed at the bottom end of the insert rod 10. A threaded layer 13 is opened at the top end of the movable groove 8, and the insert rod 10... A threaded knob 14 is installed at the top of the rod 10, which meshes with the inside of the threaded layer 13. A rigid spring 12 is sleeved on the outer wall of the rod 10, and the top and bottom ends of the rigid spring 12 are connected to the side walls of the movable groove 8 and the piston block 9, respectively. By rotating the threaded knob 14, it meshes with the inner wall of the threaded layer 13, thereby causing the threaded knob 14 to drive the rod 10 and the trapezoidal block 11 to move upward and squeeze the rigid spring 12, so that the trapezoidal block 11 separates from the trapezoidal groove 5. Then, the second sleeve 3 is pushed to the right, and the second sleeve 3 drives the slider 4 to slide in the slide groove 2, thereby adjusting the position of the second sleeve 3 in the first sleeve 1.

[0021] Working principle: First, the operator can move the second sleeve 3 in the slide groove 2 via the slider 4, thereby adjusting the length of the first sleeve 1. When positioning is required, the threaded knob 14 is rotated to engage with the outer wall of the threaded layer 13. Under the elastic force of the rigid spring 12, the threaded knob 14 drives the trapezoidal block 11 at the insertion rod 10 to insert into the trapezoidal groove 5, thereby facilitating further fixing of the second sleeve 3 at the position of the first sleeve 1 and completing rapid positioning. This solves the problems of inconvenient movement and complicated positioning operations in the prior art. In addition, when the second sleeve 3 moves, friction is generated by the contact between the sealant at the second sleeve 3 and the sealing gasket 6. The sealing gasket 6 is squeezed and tightly adheres to the sealing ring 7, thereby sealing the position of the second sleeve 3 and the first sleeve 1, satisfying the sealing effect during movement.

[0022] Finally, it should be noted that the above content is only used to illustrate the technical solution of this utility model, and is not intended to limit the scope of protection of this utility model. Simple modifications or equivalent substitutions made by those skilled in the art to the technical solution of this utility model do not depart from the essence and scope of the technical solution of this utility model.

Claims

1. A sealed pipe expansion joint, comprising a first sleeve (1), a sliding groove (2), and a second sleeve (3), characterized in that: The outer wall of the first sleeve (1) is provided with a sliding groove (2), and the bottom end of the sliding groove (2) is provided with multiple trapezoidal grooves (5). The outer wall of the first sleeve (1) is fitted with a second sleeve (3). The outer wall of the first sleeve (1) is equipped with a sealing ring (7), and the outer wall of the sealing ring (7) is pasted with a sealing gasket (6). The bottom end of the second sleeve (3) is equipped with a slider (4) that is compatible with the inside of the sliding groove (2), and the slider (4) is provided with a positioning mechanism for fixing the position of the second sleeve (3).

2. The sealing pipe expansion joint according to claim 1, characterized in that: The outer walls of the first sleeve (1) and the second sleeve (3) are both provided with positioning screw holes.

3. The sealing pipe expansion joint according to claim 1, characterized in that: The positioning mechanism includes a movable groove (8) and a piston block (9). The movable groove (8) is provided inside the second sleeve (3), and the piston block (9) is provided inside the movable groove (8). The piston block (9) is equipped with a through rod (10) that passes through the slider (4) through a bearing, and a trapezoidal block (11) that is adapted to the inner wall of the trapezoidal groove (5) is installed at the bottom end of the through rod (10).

4. A sealing pipe expansion joint according to claim 3, characterized in that: The top of the movable groove (8) is provided with a threaded layer (13), and the top of the insert rod (10) is provided with a threaded knob (14) that meshes with the inside of the threaded layer (13).

5. A sealing pipe expansion joint according to claim 3, characterized in that: The outer wall of the insertion rod (10) is fitted with a rigid spring (12), and the top and bottom ends of the rigid spring (12) are connected to the side walls of the movable groove (8) and the piston block (9), respectively.

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