Packing sealing device

Abstract

The utility model relates to the technical field of packing sealing, and discloses a packing sealing device which comprises a shaft body and a fixing disc, the fixing disc is connected to the outer wall of the shaft body in a sleeved mode, a packing barrel is fixed to the top of the fixing disc, a packing piece is attached to the inner wall of the packing barrel, an installation disc is fixed to the top of the packing barrel, and the installation disc is fixed to the outer wall of the shaft body. The shaft body is provided with a pressing mechanism for pressing the packing piece, the pressing mechanism is provided with an ejection mechanism, the pressing mechanism comprises a threaded rod, the threaded rod is rotationally installed on the inner wall of the shaft body, and a rotary button is fixed to the top of the threaded rod; and the outer wall of the threaded rod is in threaded connection with the threaded sleeve. According to the packing sealing device, when the packing pieces are placed in the packing cylinder, the multiple packing pieces in the packing cylinder can be compacted through the compressing block through the compressing mechanism, the packing pieces can be tightly attached to the inner wall of the shaft body and the inner wall of the packing cylinder, and the sealing performance can be better.

Description

Technical Field

[0001] The utility model relates to the technical field of packing sealing, in particular to a packing sealing device. Background Art

[0002] A packing seal is a dynamic sealing device that generates a compression force between the packing and the rotating and fixed parts through pre-tightening or the self-tightening effect of the medium pressure. It is also called a "stuffing box seal".

[0003] During packing sealing, multiple soft packing pieces need to be stacked and placed. However, when too many packing pieces are placed, the contact between the packing pieces may be loose, which will affect the sealing effect and reduce practicality. In view of this, a packing sealing device is proposed. Utility Model Content

[0004] The purpose of the utility model is to provide a packing sealing device to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a packing sealing device, comprising a shaft body and a fixed disk, the fixed disk is sleeved on the outer wall of the shaft body, a packing cylinder is fixed on the top of the fixed disk, a packing piece is attached to the inner wall of the packing cylinder, a mounting disk is fixed on the top of the packing cylinder, a pressing mechanism for compacting the packing piece is arranged on the shaft body, an ejection mechanism is arranged on the pressing mechanism, and the pressing mechanism comprises:

[0006] A threaded rod, the inner wall of the shaft body is rotatably mounted with the threaded rod, and a knob is fixed on the top of the threaded rod;

[0007] The threaded sleeve is threadedly connected to the outer wall of the threaded rod, and the threaded sleeve is slidably mounted on the inner wall of the shaft body.

[0008] Preferably, a connecting rod is fixed to the bottom of the threaded sleeve, a sealing ring is fixed to the bottom of the connecting rod, and a pressure block is fixed to the bottom of the sealing ring. Through the clamping mechanism, the clamping block can compact the multiple packing pieces in the packing tube, so that the packing pieces can fit tightly on the inner wall of the shaft body and the packing tube, thereby achieving better sealing.

[0009] Preferably, the ejection mechanism comprises a connecting rod, the threaded rod is penetrated by the connecting rod, and the penetration portion is in close contact with each other, and a pull block is fixed on the top of the connecting rod.

[0010] Preferably, a connecting spring is fixed to the bottom of the pull block, and the bottom of the connecting spring is fixed to the top of the knob. The connecting spring can achieve the effect of resetting the connecting rod.

[0011] Preferably, a moving block is slidably mounted on the inner wall of the shaft body, and the top of the moving block is rotatably connected to the bottom of the connecting rod. An extrusion rod is fixed to the top of the moving block. When the packing piece needs to be replaced, the extrusion rod can be extended into the packing tube through the ejection mechanism, and the packing piece at the bottom of the inner wall of the packing tube can be pushed upward by the extrusion rod, so that the packing piece can be conveniently taken out of the packing tube.

[0012] Preferably, four groups of extrusion rods are provided, and the four groups of extrusion rods are arranged in a circular array with the center point of the shaft body.

[0013] Compared with the prior art, the utility model provides a packing sealing device, which has the following beneficial effects:

[0014] 1. When the packing piece is placed in the packing tube, the packing sealing device can make the packing piece in the packing tube compacted by the compacting block through the compacting mechanism, so that the packing piece can be closely attached to the inner wall of the shaft body and the packing tube, thereby achieving better sealing performance.

[0015] 2. The packing sealing device is provided with an ejection mechanism. When the packing piece needs to be replaced, the ejection mechanism can be used to allow the extrusion rod to extend into the packing tube. The packing piece at the bottom of the inner wall of the packing tube can be pushed upward by the extrusion rod, so that the packing piece can be easily taken out of the packing tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 3 This is a schematic diagram of the overall cross-sectional structure of the utility model;

[0019] Figure 4 For this utility model Figure 3 A magnified schematic diagram of the structure of A;

[0020] Figure 5 For this utility model Figure 3 Schematic diagram of the enlarged structure of B.

[0021] In the figure: 1, shaft body; 2, fixed plate; 3, stuffing cylinder; 4, mounting plate; 5, clamping mechanism; 51, threaded rod; 52, threaded sleeve; 53, connecting rod; 54, sealing ring; 55, pressing block; 56, turning button; 6, stuffing piece; 7, ejection mechanism; 71, connecting rod; 72, pulling block; 73, connecting spring; 74, moving block; 75, extrusion rod. DETAILED DESCRIPTION

[0022] like Figure 1-Figure 5As shown, the utility model provides a technical solution: a packing sealing device, comprising a shaft body 1 and a fixed disk 2, the fixed disk 2 is sleeved on the outer wall of the shaft body 1, a packing tube 3 is fixed on the top of the fixed disk 2, a mounting disk 4 is fixed on the top of the packing tube 3, a packing piece 6 is fitted on the inner wall of the packing tube 3 and the outer wall of the shaft body 1, the packing piece 6 is a soft material, and an effective sealing operation can be performed through the packing piece 6, a pressing mechanism 5 for compacting the packing piece 6 is arranged on the shaft body 1, and an ejection mechanism 7 is arranged on the pressing mechanism 5.

[0023] Specifically, the clamping mechanism 5 includes a threaded rod 51, a knob 56, a threaded sleeve 52, a connecting rod 53, a sealing ring 54 and a pressing block 55; the threaded rod 51 is rotatably mounted on the inner wall of the shaft body 1, a knob 56 is fixed on the top of the threaded rod 51, a threaded sleeve 52 is threadedly connected to the outer wall of the threaded rod 51, and the threaded sleeve 52 is slidably mounted on the inner side of the shaft body 1. When the knob 56 is turned forward, the threaded rod 51 can be rotated forward, which can drive the threaded sleeve 52 to move downward, so that the threaded sleeve 52 drives the connecting rod 53 to move downward, and a sealing ring 54 is fixed at the bottom of the connecting rod 53, and the bottom of the sealing ring 54 is fixed A pressure block 55 is provided. When the connecting rod 53 moves downward, the sealing ring 54 can be driven to move downward, so that the pressure block 55 can be moved downward. The packing placed in the packing tube 3 can be compressed by the pressure block 55 to prevent too many packing pieces 6 in the packing tube 3 from being loose and affecting the sealing effect. By fully compressing the packing pieces 6, the packing can be tightly fitted to the inner wall of the shaft body 1 and the packing tube 3, so that the sealing performance can be better. When the pressure block 55 moves downward, the sealing ring 54 can be moved to the groove on the top of the mounting plate 4, and the sealing ring 54 can be used to perform a second sealing operation.

[0024] Specifically, the ejection mechanism 7 includes a connecting rod 71, a pull block 72, a connecting spring 73, a moving block 74 and an extrusion rod 75; the threaded rod 51 is penetrated by the connecting rod 71, and the penetration is in close contact, the top of the connecting rod 71 is fixed with a pull block 72, the bottom of the pull block 72 is fixed with a connecting spring 73, and the bottom of the connecting spring 73 is fixed to the bottom of the knob 56. By setting the connecting spring 73, the pulling block 72 can be reset. The inner wall of the shaft body 1 is slidably mounted with a moving block 74. The top of the block 74 is rotatably connected to the bottom of the connecting rod 71, and an extrusion rod 75 is fixed to the top of the movable block 74. The extrusion rod 75 passes through the fixed disk 2 and fits in the penetration. The top of the extrusion rod 75 fits in with the bottom of the packing piece 6. By pulling the pull block 72, the connecting rod 71 can drive the movable block 74 to move upward, and the extrusion rod 75 can be extended into the packing tube 3. The packing piece 6 at the bottom of the inner wall of the packing tube 3 can be pushed up by the extrusion rod 75, so that the packing piece 6 can be taken out of the packing tube 3 conveniently.

[0025] Working principle: when the packing pieces 6 are put into the packing tube 3 one by one, when the knob 56 is turned forward, the threaded rod 51 can be rotated forward, which can drive the threaded sleeve 52 to move downward, and the threaded sleeve 52 can drive the connecting rod 53 to move downward, which can drive the sealing ring 54 to move downward, and the pressing block 55 can be moved downward. The packing placed in the packing tube 3 can be compressed by the pressing block 55 to prevent too many packing pieces 6 in the packing tube 3 from being loose and affecting the sealing effect, and the packing pieces 6 can be fully compressed.

[0026] When it is necessary to take the packing piece 6 out of the packing tube 3, the rotating button 56 can be reversed to make the threaded rod 51 drive the threaded sleeve 52 to move upward, and the connecting rod 53 drives the sealing ring 54 to move upward, so that the pressing block 55 can be moved out of the packing tube 3 without pressing the packing piece 6. By pulling the pulling block 72, the connecting rod 71 can drive the moving block 74 to move upward, and the squeezing rod 75 can be extended into the packing tube 3. The packing piece 6 at the bottom of the inner wall of the packing tube 3 can be pushed upward by the squeezing rod 75, so that the packing piece 6 can be taken out of the packing tube 3 conveniently.

[0027] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not deviate from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A packing sealing device, comprising a shaft body (1) and a fixed disk (2), wherein the fixed disk (2) is sleeved on the outer wall of the shaft body (1), characterized in that: A packing cylinder (3) is fixed on the top of the fixed disk (2), a packing piece (6) is attached to the inner wall of the packing cylinder (3), a mounting disk (4) is fixed on the top of the packing cylinder (3), a pressing mechanism (5) for compacting the packing piece (6) is provided on the shaft (1), an ejection mechanism (7) is provided on the pressing mechanism (5), and the pressing mechanism (5) comprises: A threaded rod (51), the inner wall of the shaft body (1) is rotatably mounted with the threaded rod (51), and a knob (56) is fixed on the top of the threaded rod (51); A threaded sleeve (52), wherein the outer wall of the threaded rod (51) is threadedly connected with the threaded sleeve (52), and the threaded sleeve (52) is slidably mounted on the inner wall of the shaft body (1).

2. A packing sealing device according to claim 1, characterized in that: A connecting rod (53) is fixed to the bottom of the threaded sleeve (52), a sealing ring (54) is fixed to the bottom of the connecting rod (53), and a pressing block (55) is fixed to the bottom of the sealing ring (54).

3. A packing sealing device according to claim 1, characterized in that: The ejection mechanism (7) comprises a connecting rod (71), the connecting rod (71) passes through the threaded rod (51), and the penetration portion is in close contact with each other, and a pull block (72) is fixed on the top of the connecting rod (71).

4. A packing sealing device according to claim 3, characterized in that: A connecting spring (73) is fixed to the bottom of the pull block (72), and the bottom of the connecting spring (73) is fixed to the top of the rotating knob (56).

5. A packing sealing device according to claim 3, characterized in that: A moving block (74) is slidably mounted on the inner wall of the shaft body (1); the top of the moving block (74) is rotatably connected to the bottom of the connecting rod (71); and an extrusion rod (75) is fixed to the top of the moving block (74).

6. A packing sealing device according to claim 5, characterized in that: The extrusion rods (75) are provided in four groups, and the four groups of extrusion rods (75) are arranged in a circular array with the center point of the shaft body (1).

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