Dustproof sealing element

Abstract

The utility model discloses a dustproof sealing element, and relates to the technical field of sealing elements. Comprising a mounting ring, a supporting ring and a spring are sequentially arranged in the mounting ring, an extrusion part and a fixing part are sequentially arranged on the outer side of the spring, and the mounting ring, the extrusion part and the fixing part are linearly distributed; the floating mechanism is arranged on the outer side of the extrusion part and used for improving the sealing effect of the extrusion part and the fixing part, the floating mechanism comprises a connecting part and a contact part, and the contact part is arranged on the outer side of the extrusion part and used for separating liquid. Through the arrangement of the extrusion piece, the contact piece, the connecting piece and the blocking piece, the fixing ring, the groove, the connecting groove, the sealing ring, the connecting piece, the connecting sleeve and the connecting ring are matched, so that the floating range of the sealing ring relative to the fixing piece is enlarged, and the situation that when the movable ring and the static ring are vibrated, the follow-up of the static ring and the movable ring is poor is avoided; the contact area between the static ring and the moving ring is reduced, and the sealing effect of the mechanical seal is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to a sealing element technical field, concretely relates to a dustproof sealing element. BACKGROUND

[0002] The dustproof sealing element is a sealing element for preventing dust, debris, moisture and other pollutants from entering the inside of mechanical equipment, and the dustproof element includes gasket sealing, packing sealing, mechanical sealing, non-contact sealing and the like, the mechanical sealing is a device for preventing fluid leakage formed by at least one pair of end faces perpendicular to the rotation axis under the action of fluid pressure and the elasticity of a compensation mechanism and the cooperation of an auxiliary seal, and the mechanical sealing element is usually installed on a rotating shaft, the rotating shaft is installed in a housing, and the mechanical sealing element includes a dynamic ring and a static ring matched with each other.

[0003] The existing mechanical sealing element is not good in floating of the static ring and the dynamic ring in the use process, so that the static ring and the dynamic ring are poor in following when the dynamic ring and the static ring are vibrated, the contact area between the static ring and the dynamic ring is reduced, and the sealing effect of the mechanical sealing is affected, and therefore the dustproof sealing element is provided. UTILITY MODEL CONTENTS

[0004] The utility model discloses a dustproof sealing element to solve the problem that the static ring and the dynamic ring are poor in following when the dynamic ring and the static ring are vibrated, the contact area between the static ring and the dynamic ring is reduced, and the sealing effect of the mechanical sealing is affected.

[0005] The utility model discloses a dustproof sealing element to solve the problem that the static ring and the dynamic ring are poor in following when the dynamic ring and the static ring are vibrated, the contact area between the static ring and the dynamic ring is reduced, and the sealing effect of the mechanical sealing is affected.

[0006] A dustproof sealing element comprises:

[0007] The mounting ring is internally provided with a supporting ring and a spring in sequence, the outer side of the spring is sequentially provided with an extrusion piece and a fixing piece, and the mounting ring, the extrusion piece and the fixing piece are linearly distributed.

[0008] A floating mechanism is arranged on the outer side of the extrusion piece and is used for improving the sealing effect of the extrusion piece and the fixing piece, the floating mechanism comprises a connecting piece and a contact piece, the contact piece is arranged on the outer side of the extrusion piece and is used for cutting off liquid, the connecting piece is arranged in the extrusion piece and is used for supporting the contact piece, and the connecting piece controls the contact piece to tightly adhere to the fixing piece.

[0009] Further, the mounting ring is internally provided with a mounting hole, and the mounting hole is internally provided with a bolt.

[0010] Further, the extrusion piece comprises a fixing ring abutting against one end of the spring, a plurality of grooves are formed on the fixing ring relative to the fixing piece side, a connecting groove is formed in the groove, and the connecting groove is communicated with the groove.

[0011] Further, the contact piece comprises a sealing ring and a blocking piece, the sealing ring is arranged between the fixing ring and the fixing piece, a plurality of rotating grooves are formed on the fixing ring relative to the fixing piece side, and the rotating grooves correspond to the grooves one by one, and the fixing ring and the sealing ring are both provided with mounting grooves on the opposite sides.

[0012] Further, the blocking piece comprises a connecting sleeve, the connecting sleeve is annular, and the connecting sleeve is provided with connecting rings at both ends, and the connecting rings are connected with the mounting grooves.

[0013] Further, the connecting piece comprises a telescopic rod and a connecting head, the connecting head is a plurality of, and the connecting head is arranged at both ends of the telescopic rod, and the connecting head is connected with the connecting groove and the rotating groove respectively.

[0014] The beneficial effects of the utility model are as follows:

[0015] The utility model discloses a setting of extrusion piece, contact piece, connecting piece and blocking piece, realizes the cooperation of fixing ring, groove, connecting groove, sealing ring, connecting piece, connecting sleeve and connecting ring, thereby increasing the floating range of sealing ring relative to fixing piece, avoids the poor following of static ring and dynamic ring when static ring and dynamic ring are subjected to vibration, makes the contact area between static ring and dynamic ring reduce, and ensures the sealing effect of mechanical seal. DRAWINGS

[0016] Figure 1 It is the three-dimensional structure schematic diagram of the utility model;

[0017] Figure 2 It is the partial section view of the utility model mounting ring;

[0018] Figure 3 It is the enlarged view of the utility model contact piece;

[0019] Figure 4 It is the enlarged view of the utility model fixing ring;

[0020] Figure 5 It is the partial section view of the utility model fixing ring;

[0021] Figure 6 It is the utility model Figure 5 Enlarged view of part A in the utility model;

[0022] Reference numerals: 1, mounting ring; 101, spring; 102, support ring; 2, extrusion piece; 201, fixed ring; 202, groove; 203, connecting groove; 204, mounting groove; 3, contact piece; 301, sealing ring; 4, connecting piece; 5, blocking piece; 501, connecting sleeve; 502, connecting ring; 6, fixing piece. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme of the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. The components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.

[0024] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative labor are within the scope of protection of the present application.

[0025] It should be noted that: similar reference numerals and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0026] The electrical components appearing in this document are all electrically connected with the master controller and 220V mains from the outside, and the master controller can be a conventional known device such as a computer for control.

[0027] In the description of the embodiments of the present application, it should be noted that the directions or position relationships indicated by the terms "inner", "outer", "upper", etc. are based on the directions or position relationships shown in the drawings, or the directions or position relationships commonly placed when the product of the present application is used, which are only for the convenience of describing the present application and simplifying the description, and cannot be understood as indicating or implying that the indicated device or element must have a particular direction, be constructed and operated in a particular direction, and therefore cannot be understood as limiting the present application.

[0028] As Figures 1 to 6As shown, a dustproof seal includes: a mounting ring 1, inside which a support ring 102 and a spring 101 are arranged in sequence, and outside the spring 101, a pressing member 2 and a fixing member 6 are arranged in sequence, and the mounting ring 1, the pressing member 2, and the fixing member 6 are arranged in a straight line; a floating mechanism, disposed outside the pressing member 2, for improving the sealing effect of the pressing member 2 and the fixing member 6, the floating mechanism includes a connecting member 4 and a contact member 3, the contact member 3 is disposed outside the pressing member 2 for isolating liquid, the connecting member 4 is disposed inside the pressing member 2 for providing support for the contact member 3, and the connecting member 4 controls the contact member 3 to fit tightly with the fixing member 6. Specifically, in use, the mounting ring 1 and the fixing member 6 are first... The device can be installed with the rotating shaft and the fixing member. Then, the contact member 3 is pushed to the fixing member 6 for stable contact through the cooperation of the spring 101 and the pressing member 2. During the contact member 3 and the fixing member 6 contacting process, the connecting member 4 provides support for the contact member 3, so that the contact member 3 can float relative to the pressing member 2 during use, further ensuring the stability of the contact member 3 and the fixing member 6 contacting. During the installation process, the mounting ring 1, the pressing member 2 and the fixing member 6 are all sealed by the sealing ring to prevent liquid from leaking through the gap between the housing or the rotating shaft during use. During use, the spring 101 can provide a pushing force to the pressing member 2, so that the pressing member 2 drives the contact member 3 to be stably contacted with the fixing member 6.

[0029] like Figures 1 to 6 As shown, the mounting ring 1 also has a mounting hole inside, and a bolt is installed inside the mounting hole. Specifically, the mounting hole and the bolt are connected by threads, so that the bolt and the mounting hole can stably connect the mounting ring 1 and the rotating shaft. During use, the support ring 102 can provide a limit for the spring 101 to prevent the spring 101 from shifting relative to the mounting ring 1 during use.

[0030] like Figures 1 to 6 As shown, the extrusion member 2 includes a fixing ring 201, which abuts against one end of the spring 101. The fixing ring 201 has multiple grooves 202 on the side opposite to the fixing member 6. A connecting groove 203 is provided inside the groove 202, and the connecting groove 203 is connected to the groove 202. Specifically, the groove 202 is conical, which increases the movement range of the connecting member 4 while avoiding interference between the connecting member 4 and the fixing ring 201, ensuring that the connecting member 4 can move stably with the contact member 3 during use.

[0031] like Figures 1 to 6As shown, the contact piece 3 includes a sealing ring 301 and a blocking piece 5, the sealing ring 301 is arranged between the fixed ring 201 and the fixed piece 6, the sealing ring 301 is provided with a plurality of rotating grooves on the side opposite to the fixed ring 201, and the rotating grooves correspond to the grooves 202 one by one, and the fixed ring 201 and the sealing ring 301 are both provided with mounting grooves 204 on the opposite side, specifically, when sealing the liquid, the gap between the sealing ring 301 and the fixed piece 6 is sealed by the sealing ring 301 and the fixed piece 6, so as to avoid the leakage of the liquid through the gap between the sealing ring 301 and the fixed piece 6, and the sealing ring 301 and the fixed ring 201 are connected by the connecting piece 4, so that the axis of the sealing ring 301 can be offset relative to the axis of the fixed ring 201 during the lamination of the sealing ring 301 and the fixed piece 6, and the stability of the lamination of the sealing ring 301 and the fixed piece 6 is ensured.

[0032] As shown in Figures 1 to 6 The blocking piece 5 includes a connecting sleeve 501, the connecting sleeve 501 is annular, the connecting sleeve 501 is provided with a connecting ring 502 at both ends, and the connecting ring 502 is connected with the mounting groove 204, specifically, during the connection of the connecting piece 4 to the fixed ring 201 and the sealing ring 301, the liquid is blocked by the cooperation of the connecting ring 502 and the connecting sleeve 501, so as to avoid the liquid entering the inside of the fixed ring 201 through the gap between the sealing ring 301 and the fixed ring 201 during use, and further ensure the sealing effect of the connection of the sealing ring 301 and the fixed piece 6, the connecting ring 502 and the mounting groove 204 can be connected by threads or clamping grooves, and the connecting ring 502 is provided with a sealing pad between the fixed ring 201 and the sealing ring 301, so as to avoid the liquid entering the inside of the fixed ring 201 through the gap between the connecting sleeve 501 and the mounting groove 204 during use, the connecting sleeve 501 is made of flexible corrosion-resistant material, and the shape of the connecting sleeve 501 can be arc-shaped or corrugated, so as to block the liquid and ensure that the sealing ring 301 can swing relative to the fixed ring 201 flexibly.

[0033] As shown in Figures 1 to 6 The connecting piece 4 includes an extension rod and a connecting head, the connecting head is a plurality of, and the connecting head is arranged at both ends of the extension rod, the connecting head is connected with the connecting groove 203 and the rotating groove respectively, specifically, the connecting groove 203, the rotating groove and the connecting head at both ends of the extension rod are the same shape, so that the connecting head at both ends of the extension rod can rotate in the connecting groove 203 and the rotating groove during use, and the length of the extension rod during use can be adjusted in length according to the use demand, so as to maintain the position of the sealing ring 301 by the cooperation of the extension rod and the connecting sleeve 501 during use, and ensure that the sealing ring 301 can stably contact with the fixed piece 6.

[0034] The basic principle, main features and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection required by the present application is defined by the appended claims and their equivalents.

Claims

1. A dust seal, characterized by, The utility model relates to a sealing device for liquid container, which comprises: a mounting ring (1) with a support ring (102) and a spring (101) arranged in sequence inside the mounting ring (1), an extrusion piece (2) and a fixing piece (6) arranged in sequence outside the spring (101), and the mounting ring (1), the extrusion piece (2) and the fixing piece (6) being arranged in a straight line; a floating mechanism arranged outside the extrusion piece (2) for improving the sealing effect of the extrusion piece (2) and the fixing piece (6), the floating mechanism comprising a connecting piece (4) and a contact piece (3), the contact piece (3) being arranged outside the extrusion piece (2) for blocking liquid, the connecting piece (4) being arranged inside the extrusion piece (2) for providing support for the contact piece (3), and the connecting piece (4) controlling the contact piece (3) to tightly adhere to the fixing piece (6).

2. A dust seal according to claim 1, wherein The mounting ring (1) is further provided with a mounting hole inside, and the mounting hole is provided with a bolt inside.

3. A dust seal according to claim 1, wherein The extrusion piece (2) comprises a fixed ring (201) abutting against one end of the spring (101), a plurality of grooves (202) being arranged on the side of the fixed ring (201) relative to the fixing piece (6), and a connecting groove (203) being arranged inside each groove (202) and being in communication with the groove (202).

4. A dust seal according to claim 1, wherein The contact piece (3) comprises a sealing ring (301) and a blocking piece (5), the sealing ring (301) being arranged between the fixed ring (201) and the fixing piece (6), a plurality of rotating grooves being arranged on the side of the sealing ring (301) relative to the fixed ring (201), and each rotating groove corresponding to one groove (202), and mounting grooves (204) being arranged on the opposite sides of the fixed ring (201) and the sealing ring (301).

5. A dust seal according to claim 4, wherein The blocking piece (5) comprises a connecting sleeve (501) in the shape of a ring, and connecting rings (502) being arranged at both ends of the connecting sleeve (501) and connected to the mounting grooves (204).

6. A dust seal according to claim 1, wherein The connecting piece (4) comprises an extension rod and a plurality of connecting heads arranged at both ends of the extension rod, and each connecting head being connected to the connecting groove (203) and the rotating groove.

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