Improved mechanical sealing end cover

Abstract

The utility model provides an improved mechanical seal end cover, which relates to the technical field of mechanical seal, and comprises a casing, a cover plate is arranged on one side of the casing, a same rotating shaft is arranged in the casing and the cover plate, a first spring is fixedly connected in the casing, and a second spring is fixedly connected in the casing. A fixing ring is fixedly connected to one end of the first spring, a rubber ring is arranged at the end, away from the first spring, of the fixing ring, a fixing device is arranged on one side of the rubber ring and comprises two symmetrical square pipes, the two square pipes are fixedly connected to one side of the rubber ring, and grooves are formed in the positions, corresponding to the square pipes, of the fixing ring. The inner wall of the square pipe is fixedly connected with a second spring, one end of the second spring is fixedly connected with a movable plate, the effect that when the rubber ring is aged or damaged, a worker can replace the rubber ring conveniently is achieved through the fixing device, and convenience is brought to the worker.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical seals, in particular to an improved mechanical seal end cover. Background Art

[0002] A mechanical seal is a device that prevents fluid leakage by having at least one pair of end faces perpendicular to the axis of rotation that remain in contact and slide relative to each other under the action of fluid pressure and the elastic force (or magnetic force) of a compensation mechanism and the cooperation of an auxiliary seal.

[0003] In the prior art, when the mechanical seal end cover is in use, in order to ensure its sealing performance, a sealing gasket is added to the mechanical seal end cover. However, after long-term use, the sealing gasket will be worn and aged, thereby affecting the sealing effect of the mechanical seal end cover, and the mechanical seal end cover cannot be used normally. Utility Model Content

[0004] The utility model provides an improved mechanical sealing end cover to solve the shortcomings in the prior art.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an improved mechanical seal end cover, comprising a casing, a cover plate is arranged on one side of the casing, the casing and the cover plate are provided with the same rotating shaft inside, a first spring is fixedly connected to the inside of the casing, a fixing ring is fixedly connected to one end of the first spring, a rubber ring is arranged at the end of the fixing ring away from the first spring, a fixing device is arranged on one side of the rubber ring, the fixing device comprises two symmetrical square tubes, the two square tubes are fixedly connected to one side of the rubber ring, a groove is arranged at the corresponding square tube of the fixing ring, a second spring is fixedly connected to the inner wall of the square tube, a moving plate is fixedly connected to one end of the second spring, a triangular block is fixedly connected to the end of the moving plate away from the second spring, a socket is arranged at the corresponding moving plate of the fixing ring, and the size of the socket is adapted to the size of the moving plate.

[0006] The effects achieved by the above components are: when the rubber ring needs to be replaced, the new rubber ring is moved to the fixed ring, and at this time the square tube of the rubber ring is inserted into the groove of the fixed ring. The inclined surface of the triangular block is squeezed by the inner wall of the groove, and the triangular block moves the movable plate toward the inside of the square tube, and the second spring contracts. When the triangular block moves to the position of the insertion hole, under the action of the second spring reset elastic force, the movable plate inserts the triangular block into the insertion hole, thereby achieving the effect of fixing the square tube and the rubber ring. The fixing device achieves the effect of facilitating the staff to replace the rubber ring when the rubber ring is aged or damaged, thereby bringing convenience to the staff.

[0007] Preferably, a telescopic rod is fixedly connected to the inner wall of the square tube, and one end of the telescopic rod is fixedly connected to the movable plate.

[0008] The effect achieved by the above components is: by setting the telescopic rod, the effect of limiting the direction of the second spring return elastic force is achieved, thereby improving the stability of the movement of the moving plate.

[0009] Preferably, two mutually symmetrical positioning rods are fixedly connected to one side of the rubber ring close to the fixing ring, and positioning holes are formed on the fixing ring corresponding to the positioning rods, and the size of the positioning rods matches the size of the positioning holes.

[0010] The effect achieved by the above components is: by inserting the positioning rod of the rubber ring into the positioning hole of the fixing ring, the moving direction of the rubber ring is restricted, which makes it convenient for the staff to initially fix the rubber ring.

[0011] Preferably, one end of the positioning rod away from the rubber ring is fixedly connected with a pointed protrusion, and the tip of the pointed protrusion is away from the positioning rod.

[0012] The effect achieved by the above-mentioned components is that the pointed protrusion makes it convenient for the staff to insert the positioning rod into the positioning hole, thus bringing convenience to the staff.

[0013] Preferably, auxiliary devices are provided on both sides of the cover plate, and the auxiliary devices include two symmetrical mounting plates, and the two mounting plates are respectively fixedly connected to the two sides of the cover plate, and bolts are threadedly inserted on the surface of the mounting plates, and reserved holes are opened in the casing corresponding to the bolts, and the size of the reserved holes is adapted to the size of the bolts.

[0014] The effects achieved by the above components are: when the cover needs to be installed, first move the cover to the casing, the cover squeezes the rubber ring, the rubber ring moves toward the casing with the fixing ring, the first spring contracts, and under the action of the first spring's reset elastic force, the fixing ring and the rubber ring are tightly attached to the cover, then the bolt is turned, the bolt passes through the mounting plate and is inserted into the reserved hole of the casing, thereby achieving the effect of fixing the cover, and the auxiliary device facilitates the staff to install and disassemble the cover, bringing convenience to the staff.

[0015] Preferably, one end of the bolt is fixedly connected to a handle, and the surface of the handle is provided with anti-slip patterns.

[0016] The effect achieved by the above components is: by setting the handle, it is convenient for the staff to turn the bolt, which brings convenience to the staff.

[0017] Preferably, an elastic rope is fixedly connected to one side of the bolt, and one end of the elastic rope is fixedly connected to the mounting plate.

[0018] The effect achieved by the above components is: by setting the elastic rope, the maximum displacement of the bolt is limited, thereby preventing the bolt from falling when not in use.

[0019] In summary, the beneficial effects of the utility model are:

[0020] When the rubber ring needs to be replaced, the new rubber ring is moved to the fixed ring. At this time, the square tube of the rubber ring is inserted into the groove of the fixed ring. The inclined surface of the triangular block is squeezed by the inner wall of the groove, and the triangular block moves the movable plate toward the inside of the square tube. The second spring contracts. When the triangular block moves to the position of the insertion hole, under the action of the reset elastic force of the second spring, the movable plate inserts the triangular block into the insertion hole, thereby achieving the effect of fixing the square tube and the rubber ring. The fixing device is convenient for the staff to replace the rubber ring when it is aged or damaged, which brings convenience to the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0022] Figure 2 For this utility model Figure 1 Exploded diagram of

[0023] Figure 3 It is a three-dimensional structural schematic diagram of the rubber ring of the utility model;

[0024] Figure 4 It is a three-dimensional structural schematic diagram of the fixing ring of the utility model;

[0025] Figure 5 It is a cross-sectional view of the square tube of the utility model;

[0026] Figure 6 It is a schematic diagram of the three-dimensional structure of the cover plate of the utility model.

[0027] Legend: 1. Casing; 2. First spring; 3. Fixing ring; 4. Rubber ring; 5. Cover plate; 6. Shaft; 7. Fixing device; 71. Square tube; 72. Groove; 73. Second spring; 74. Moving plate; 75. Triangular block; 76. Socket; 77. Telescopic rod; 78. Positioning rod; 79. Positioning hole; 710. Sharp protrusion; 8. Auxiliary device; 81. Mounting plate; 82. Bolt; 83. Reserved hole; 84. Elastic rope; 85. Handle. DETAILED DESCRIPTION

[0028] Reference Figure 1-6As shown, this embodiment discloses an improved mechanical seal end cover, including a casing 1, a cover plate 5 is arranged on one side of the casing 1, the casing 1 and the cover plate 5 are provided with a same rotating shaft 6, a first spring 2 is fixedly connected to the inside of the casing 1, a fixing ring 3 is fixedly connected to one end of the first spring 2, a rubber ring 4 is arranged at one end of the fixing ring 3 away from the first spring 2, a fixing device 7 is arranged on one side of the rubber ring 4, and auxiliary devices 8 are arranged on both sides of the cover plate 5.

[0029] Reference Figure 1-6 As shown, the fixing device 7 includes two symmetrical square tubes 71, the two square tubes 71 are fixedly connected to one side of the rubber ring 4, a groove 72 is provided at the fixing ring 3 corresponding to the square tube 71, a second spring 73 is fixedly connected to the inner wall of the square tube 71, one end of the second spring 73 is fixedly connected to a moving plate 74, an end of the moving plate 74 away from the second spring 73 is fixedly connected to a triangular block 75, and a socket 76 is provided at the fixing ring 3 corresponding to the moving plate 74, and the size of the socket 76 is adapted to the size of the moving plate 74. When the rubber ring 4 needs to be replaced, the new rubber ring 4 is moved to the fixed ring 3. At this time, the square tube 71 of the rubber ring 4 is inserted into the groove 72 of the fixed ring 3. The inclined surface of the triangular block 75 is squeezed by the inner wall of the groove 72. The triangular block 75 moves the movable plate 74 to the inside of the square tube 71, and the second spring 73 contracts. When the triangular block 75 moves to the position of the insertion hole 76, under the action of the restoring elastic force of the second spring 73, the movable plate 74 inserts the triangular block 75 into the insertion hole 76, thereby achieving the effect of fixing the square tube 71 and the rubber ring 4. The fixing device 7 is used to facilitate the staff to replace the rubber ring 4 when the rubber ring 4 is aged or damaged, thereby bringing convenience to the staff.

[0030] Reference Figure 1-6 As shown, the inner wall of the square tube 71 is fixedly connected with a telescopic rod 77, and one end of the telescopic rod 77 is fixedly connected to the movable plate 74. By setting the telescopic rod 77, the effect of limiting the direction of the resetting elastic force of the second spring 73 is achieved, thereby improving the stability of the movement of the movable plate 74. The rubber ring 4 is fixedly connected to one side close to the fixed ring 3 with two mutually symmetrical positioning rods 78, and the fixed ring 3 is provided with a positioning hole 79 corresponding to the positioning rod 78, and the size of the positioning rod 78 is adapted to the size of the positioning hole 79. By inserting the positioning rod 78 of the rubber ring 4 into the positioning hole 79 of the fixed ring 3, the effect of limiting the moving direction of the rubber ring 4 is achieved, which is convenient for the staff to initially fix the rubber ring 4. The end of the positioning rod 78 away from the rubber ring 4 is fixedly connected with a sharp protrusion 710, and the tip of the sharp protrusion 710 is away from the positioning rod 78. By setting the sharp protrusion 710, it is convenient for the staff to insert the positioning rod 78 into the positioning hole 79, which brings convenience to the staff.

[0031] Reference Figure 1-6As shown, the auxiliary device 8 includes two mutually symmetrical mounting plates 81, and the two mounting plates 81 are respectively fixedly connected to the two sides of the cover plate 5. Bolts 82 are threadedly inserted on the surface of the mounting plates 81, and reserved holes 83 are opened at the housing 1 corresponding to the bolts 82. The size of the reserved hole 83 matches the size of the bolts 82. When the cover plate 5 needs to be installed, the cover plate 5 is first moved to the housing 1, and the cover plate 5 squeezes the rubber ring 4, and the rubber ring 4 moves toward the housing 1 with the fixing ring 3, and the first spring 2 contracts. Under the action of the first spring 2 reset elastic force, the fixing ring 3 and the rubber ring 4 are tightly attached to the cover plate 5. At this time, the bolts 82 are turned, and the bolts 82 pass through the mounting plates 81 and are inserted into the reserved holes 83 of the housing 1, so as to achieve the effect of fixing the cover plate 5. The auxiliary device 8 is used to facilitate the installation and removal of the cover plate 5 by the staff, which brings convenience to the staff.

[0032] Reference Figure 1-6 As shown, one end of the bolt 82 is fixedly connected to a handle 85, and the surface of the handle 85 is provided with anti-slip grooves. The handle 85 is provided to facilitate the staff to rotate the bolt 82, which brings convenience to the staff. An elastic rope 84 is fixedly connected to one side of the bolt 82, and one end of the elastic rope 84 is fixedly connected to the mounting plate 81. The elastic rope 84 is provided to limit the maximum displacement of the bolt 82, thereby preventing the bolt 82 from falling when not in use.

[0033] Working principle: when the rubber ring 4 needs to be replaced, the new rubber ring 4 is moved to the fixed ring 3, the positioning rod 78 of the rubber ring 4 is aligned with the positioning hole 79, and the positioning rod 78 is inserted into the positioning hole 79 with the help of the pointed protrusion 710, and then the square tube 71 of the rubber ring 4 is inserted into the groove 72 of the fixed ring 3, and the inclined surface of the triangular block 75 is squeezed by the inner wall of the groove 72, and the triangular block 75 moves with the moving plate 74 to the inside of the square tube 71, and the second spring 73 contracts. When the triangular block 75 moves to the position of the insertion hole 76, under the action of the restoring elastic force of the second spring 73, the moving plate 74 inserts the triangular block 75 into the insertion hole 76, thereby achieving the effect of fixing the square tube 71 and the rubber ring 4. The fixing device 7 is convenient for the staff to replace the rubber ring 4 when the rubber ring 4 is aged or damaged, which brings convenience to the staff.

[0034] When it is necessary to install the cover 5, first move the cover 5 to the casing 1, the cover 5 squeezes the rubber ring 4, the rubber ring 4 moves toward the casing 1 with the fixing ring 3, the first spring 2 contracts, and under the action of the restoring elastic force of the first spring 2, the fixing ring 3 and the rubber ring 4 are tightly against the cover 5. At this time, the bolt 82 is rotated by the handle 85, and the bolt 82 passes through the mounting plate 81 and is inserted into the reserved hole 83 of the casing 1, thereby achieving the effect of fixing the cover 5. The auxiliary device 8 is used to facilitate the staff to install and disassemble the cover 5, bringing convenience to the staff.

Claims

1. An improved mechanical seal end cover, comprising a housing (1), Features: A cover plate (5) is provided on one side of the housing (1); a common rotating shaft (6) is provided inside the housing (1) and the cover plate (5); a first spring (2) is fixedly connected inside the housing (1); a fixing ring (3) is fixedly connected to one end of the first spring (2); a rubber ring (4) is provided on one end of the fixing ring (3) away from the first spring (2); a fixing device (7) is provided on one side of the rubber ring (4); the fixing device (7) comprises two mutually symmetrical square tubes (71); the two square tubes (71) The fixing ring (3) is fixedly connected to one side of the rubber ring (4); a groove (72) is provided at a position corresponding to the square tube (71); a second spring (73) is fixedly connected to the inner wall of the square tube (71); one end of the second spring (73) is fixedly connected to a moving plate (74); one end of the moving plate (74) away from the second spring (73) is fixedly connected to a triangular block (75); a plug hole (76) is provided at a position corresponding to the moving plate (74); and the size of the plug hole (76) is adapted to the size of the moving plate (74).

2. An improved mechanical seal end cover according to claim 1, Features: A telescopic rod (77) is fixedly connected to the inner wall of the square tube (71), and one end of the telescopic rod (77) is fixedly connected to the movable plate (74).

3. An improved mechanical seal end cover according to claim 1, Features: Two mutually symmetrical positioning rods (78) are fixedly connected to one side of the rubber ring (4) close to the fixing ring (3); positioning holes (79) are provided on the fixing ring (3) corresponding to the positioning rods (78); and the size of the positioning rods (78) matches the size of the positioning holes (79).

4. An improved mechanical seal end cover according to claim 3, Features: One end of the positioning rod (78) away from the rubber ring (4) is fixedly connected with a sharp protrusion (710), and the tip of the sharp protrusion (710) is away from the positioning rod (78).

5. An improved mechanical seal end cover according to claim 1, Features: Auxiliary devices (8) are provided on both sides of the cover plate (5), and the auxiliary devices (8) include two mutually symmetrical mounting plates (81). The two mounting plates (81) are respectively fixedly connected to the two sides of the cover plate (5), and bolts (82) are threadedly inserted on the surfaces of the mounting plates (81). The housing (1) is provided with reserved holes (83) at locations corresponding to the bolts (82), and the size of the reserved holes (83) is adapted to the size of the bolts (82).

6. An improved mechanical seal end cover according to claim 5, Features: One end of the bolt (82) is fixedly connected to a handle (85), and the surface of the handle (85) is provided with anti-slip grooves.

7. An improved mechanical seal end cover according to claim 5, Features: An elastic rope (84) is fixedly connected to one side of the bolt (82), and one end of the elastic rope (84) is fixedly connected to the mounting plate (81).

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