A sealing bushing

Abstract

The utility model discloses a kind of sealing property of shaft sleeve, including shaft sleeve body, the surface of the shaft sleeve body is provided annular structure, the inner wall of the shaft sleeve body is provided sealing structure, sealing structure sets up sealing strip to increase the sealing performance of shaft sleeve body.The sealing property of shaft sleeve, annular groove is set in the inner wall of the shaft sleeve body, sealing strip is set in recess, sealing performance in the connecting process of shaft sleeve body and shaft can be increased using sealing strip, avoid sundry penetration, simultaneously, the sealing strip of the device is connected with slider, slider is installed in annular groove, and slider surface is rotationally connected adjusting bolt, adjusting bolt is screw-threaded connected with the surface of shaft sleeve body, the adjusting bolt on the surface of shaft sleeve body can be rotated from outside, slider and sealing strip can be driven to move to change the sealing degree of sealing strip.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically to a sealing bushing. Background Technology

[0002] Medical devices are equipment or tools that act directly on the human or animal body, and can treat diseases. They are an indispensable and important part of the medical field and also represent an important manifestation of a hospital's comprehensive medical strength. In medical devices, bushings are important connecting parts between the shaft and the seat of the device. They are used in most devices to fix the position, provide lubrication, and reduce friction.

[0003] Currently, bushings are typically ring-shaped structures that support the shaft. However, during the use of medical devices, gas molecules or impurities in the hospital can seep into the device through the gap between the shaft and the bushing, or conversely, chemical molecules from inside the device can seep outwards, causing contamination and affecting the lifespan of the medical device. Utility Model Content

[0004] The purpose of this invention is to provide a sealing bushing. This device has a sealing strip inside the bushing to increase the sealing performance of the bushing, thereby solving the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a sealing bushing, comprising a bushing body, wherein a circular annular structure is provided on the surface of the bushing body, a sealing structure is provided on the inner wall of the bushing body, and a sealing strip is provided in the sealing structure to increase the sealing performance of the bushing body.

[0006] Preferably, the sealing structure includes a groove, which is embedded in the inner wall of the bushing body and has a circular ring structure. The inner wall of the groove is provided with a slider, which has an arc-shaped strip structure. Two sliders are symmetrically arranged and there is no contact between the two sliders.

[0007] Using the above technical solution, the movement of the slider inside the groove can drive the movement of the sealing strip.

[0008] Preferably, the inner surface of the slider is fixedly connected to the outer surface of the sealing strip, the sealing strip is made of a compressible material, and the sealing strip has a circular structure.

[0009] By adopting the above technical solution, the sealing performance of the bushing body can be increased by using a circular sealing strip.

[0010] Preferably, the surface of the slider is provided with an adjustment structure, and the adjustment structure is provided with an adjustment bolt to adjust the position of the slider.

[0011] By adopting the above technical solution, the position of the slider on the inner surface can be adjusted from the outside of the bushing body using the adjustment structure.

[0012] Preferably, the adjustment structure includes an adjustment bolt, one end of which is rotatably connected to the outer surface of the slider, and the other end of which penetrates the surface of the bushing body, and the adjustment bolt is threadedly connected to the surface of the bushing body.

[0013] By adopting the above technical solution, the rotation of the adjusting bolt can drive the slider to move, thereby moving the sealing strip on the inner surface of the bushing body and adjusting the sealing degree of the bushing body.

[0014] Preferably, the inner wall of the bushing body is provided with two sealing strips arranged parallel to each other, and the structures of the two sealing strips are completely identical.

[0015] By adopting the above technical solution, the sealing degree of the bushing body can be further increased by using two sets of sealing strips.

[0016] Compared with the prior art, the beneficial effects of this utility model are: the sealing performance of the bushing: 1. This device has an annular groove on the inner wall of the bushing body, and a sealing strip is installed in the groove. The sealing strip can increase the sealing performance during the connection between the bushing body and the shaft, and prevent foreign matter from penetrating. 2. The sealing strip of this device is connected to the slider. The slider is installed in the annular groove, and the surface of the slider is rotatably connected to the adjusting bolt. The adjusting bolt is threadedly connected to the surface of the bushing body. Rotating the adjusting bolt on the surface of the bushing body from the outside can drive the slider and the sealing strip to move, thereby changing the sealing degree of the sealing strip. 3. Two sets of sealing strips are arranged parallel to each other on the inner wall of the bushing body of this device. The two sets of sealing strips can further increase the sealing degree of the bushing body and prevent foreign matter from penetrating into the device from the outside and inside. Attached Figure Description

[0017] Figure 1 This is a front view structural diagram of the present invention; Figure 2 This is a schematic diagram of the structure of this utility model from below; Figure 3 This is a schematic diagram of the orthographic section of the present invention; Figure 4 This is a top view sectional diagram of the present invention; Figure 5 This is a schematic diagram of the slider and sealing strip structure of this utility model.

[0018] In the diagram: 1. Bushing body; 2. Groove; 3. Slider; 4. Sealing strip; 5. Adjusting bolt. Detailed Implementation

[0019] 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.

[0020] Please see Figure 1-5 This utility model provides a technical solution: a sealing bushing, including a bushing body 1, a groove 2, a slider 3, a sealing strip 4, and an adjusting bolt 5.

[0021] The surface of the bushing body 1 is provided with a circular ring structure, and the inner wall of the bushing body 1 is provided with a sealing structure. The sealing structure is provided with a sealing strip 4 to increase the sealing performance of the bushing body 1. The sealing structure includes a groove 2, which is embedded in the inner wall of the bushing body 1. The groove 2 is a circular ring structure. The inner wall of the groove 2 is provided with a slider 3. The slider 3 is an arc-shaped strip structure. Two sliders 3 are symmetrically arranged. There is no contact between the two sliders 3. The inner surface of the slider 3 is fixedly connected to the outer surface of the sealing strip 4. The sealing strip 4 is made of a compressible material and is a circular ring structure. The surface of the slider 3 is provided with an adjustment structure. The adjustment structure is provided with an adjustment bolt 5 to adjust the position of the slider 3. The adjustment structure includes an adjustment bolt 5. One end of the adjustment bolt 5 is rotatably connected to the outer surface of the slider 3. The other end of the adjustment bolt 5 penetrates the surface of the bushing body 1 and is threadedly connected to the surface of the bushing body 1. Two sealing strips 4 are arranged parallel to each other on the inner wall of the bushing body 1. The joints of the two sealing strips 4 are exactly the same. like Figures 1-5 As shown, when using this device, the shaft passes through the annulus on the surface of the bushing body 1. At this time, the shaft contacts the sealing strip 4 on the inner surface of the bushing body 1. The sealing strip 4 can increase the sealing performance between the bushing body 1 and the shaft. When it is necessary to adjust the sealing degree of the sealing strip 4, rotate the adjusting bolt 5 so that the adjusting bolt 5 rotates in the thread on the surface of the bushing body 1. The rotating adjusting bolt 5 drives the slider 3 to move inside the groove 2. The movement of the slider 3 causes the sealing strip 4 to fit tightly against the surface of the shaft, thereby increasing the sealing degree of the device. Two sealing strips 4 are arranged parallel to each other on the inner wall of the bushing body 1. Similarly, the sealing degree of the other sealing strip 4 can be adjusted. The sealing strips 4 on both sides work simultaneously to increase the sealing performance of the bushing body 1 from both sides.

[0022] Working principle: When using this sealing bushing, an annular groove 2 is provided on the inner wall of the bushing body 1, and a slider 3 is provided in the groove 2. A sealing strip 4 is provided on the inner surface of the slider 3. The sealing strip 4 can increase the sealing performance during the connection between the bushing body 1 and the shaft, preventing the penetration of foreign matter. The surface of the slider 3 is rotatably connected to the adjusting bolt 5, which is threadedly connected to the surface of the bushing body 1. The adjusting bolt 5 can drive the slider 2 and the sealing strip 4 to move from the outside of the bushing body 1, thereby changing the tightness between the sealing strip 4 and the shaft, and thus adjusting the sealing degree of the sealing strip 4. Two sets of sealing strips 4 are arranged parallel to each other on the inner wall of the bushing body 1. The two sets of parallel sealing strips 4 can further increase the sealing degree of the bushing body 1, prevent the penetration of foreign matter from the outside and inside of the instrument, and increase the overall practicality.

[0023] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A sealing bushing, comprising a bushing body (1), wherein the surface of the bushing body (1) is provided with an annular structure, characterized in that: The inner wall of the bushing body (1) is provided with a sealing structure. The sealing structure is provided with a sealing strip (4) to increase the sealing performance of the bushing body (1). The sealing structure includes a groove (2). The groove (2) is embedded in the inner wall of the bushing body (1). The groove (2) is a circular ring structure. The inner wall of the groove (2) is provided with a slider (3). The slider (3) is an arc-shaped strip structure. Two sliders (3) are symmetrically arranged. There is no contact between the two sliders (3).

2. The sealing bushing according to claim 1, characterized in that: The inner surface of the slider (3) is fixedly connected to the outer surface of the sealing strip (4). The sealing strip (4) is made of a compressible material and has a circular structure.

3. The sealing bushing according to claim 1, characterized in that: The surface of the slider (3) is provided with an adjustment structure, and the adjustment structure is provided with an adjustment bolt (5) to adjust the position of the slider (3).

4. A sealing bushing according to claim 3, characterized in that: The adjustment structure includes an adjustment bolt (5), one end of which is rotatably connected to the outer surface of the slider (3), and the other end of which penetrates the surface of the bushing body (1), and the adjustment bolt (5) is threadedly connected to the surface of the bushing body (1).

5. A sealing bushing according to claim 1, characterized in that: The inner wall of the bushing body (1) is provided with two sealing strips (4) arranged in parallel on the upper and lower sides, and the structures of the two sealing strips (4) are completely identical.

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