Seal ring press-in device

Abstract

The utility model discloses a sealing ring press in device, including base, press bar and swingle, the press bar is used for the sealing ring of base bottom press into work piece surface sealing ring groove, be provided with the accommodation cavity along the height direction through in the base, the press bar sets up in the accommodation cavity, still be provided with the swingle support on the base, two ends of swingle are respectively established as articulated end and free end, the articulated end of swingle articulates in swingle support, still articulate with the press bar top between the articulated end and free end of swingle, to make the press bar in the accommodation cavity along the height direction remove under the condition that swingle rotates around swingle support. The sealing ring press in device of the utility model, through the force transmission of swingle, can be more labor saving when installing sealing ring, and the installation effect is better.

Description

Technical Field

[0001] This application relates to the field of sealing ring press-in installation technology, and in particular to a sealing ring press-in device. Background Technology

[0002] In industrial equipment, in order to meet the usage requirements of internal components, sealing rings need to be installed in sealing ring grooves, such as in dovetail-shaped sealing ring grooves. The width of the dovetail-shaped sealing ring groove is smaller than the diameter of the sealing ring, and a pressing tool is needed to press the sealing ring into the sealing ring groove.

[0003] In related technologies, due to the hardness of the sealing ring itself, a large force needs to be applied when pressing the sealing ring into the sealing ring groove, especially when the diameter of the sealing ring is large. Using tools such as round bars for extrusion assembly is inefficient and requires high hand strength from the operator. In addition, the dimensions and shapes of the sealing ring and the sealing ring groove are different, and the size of the external tools used during pressing is not compatible with the size of the sealing ring, resulting in uneven force on the sealing ring. This leads to problems such as low installation efficiency, easy damage to the sealing ring, and improper installation. Utility Model Content

[0004] This application aims to address one of the technical problems in related technologies to a certain extent. To this end, this application provides a sealing ring pressing device that reduces effort and improves the installation effect when installing sealing rings.

[0005] To achieve the above objectives, this application adopts the following technical solution: a sealing ring pressing device, comprising a base, a pressure rod, and a rotating arm. The pressure rod is used to press the sealing ring at the bottom of the base into a sealing ring groove on the surface of the workpiece. The base is provided with a receiving cavity extending along the height direction. The pressure rod is disposed in the receiving cavity. The base is also provided with a rotating arm support. The two ends of the rotating arm are respectively provided as a hinged end and a free end. The hinged end of the rotating arm is hinged to the rotating arm support. The hinged end and the free end of the rotating arm are also hinged to the top of the pressure rod, so that when the rotating arm rotates around the rotating arm support, the pressure rod moves along the height direction within the receiving cavity.

[0006] In this technical solution, a lever-based rotating arm drives the pressure rod to move downwards, thereby pressing the sealing ring in the receiving cavity at the bottom of the base into the sealing ring groove on the surface of the workpiece below the sealing ring. The rotating arm is used for force transmission, making the sealing ring pressing process more labor-saving, more efficient, and allowing the sealing ring to be subjected to more uniform force during the pressing process into the sealing ring groove.

[0007] Preferably, the receiving cavity includes an upper cavity and a lower cavity that are arranged sequentially along the height direction and communicate with each other, and the pressure rod includes a rod body extending downward from the top and a rod head located at the bottom of the pressure rod. The rod body is located in the upper cavity, and the rod head can extend from the upper cavity into the lower cavity.

[0008] Preferably, a flange is formed on the rod body of the pressure rod, and an elastic element is sleeved on the rod body. One end of the elastic element abuts against the flange, and the other end abuts against the bottom of the upper cavity. When compressed, the elastic element applies a force to the pressure rod to move it to the top of the upper cavity.

[0009] Preferably, the rotating arm is provided with a sliding groove, and the top of the pressure rod is provided with a connecting shaft, which passes through the sliding groove and can move along the sliding groove.

[0010] Preferably, a rolling bearing is also fitted onto the connecting shaft, and the rolling bearing is capable of rolling within the groove.

[0011] Preferably, the base has an upper opening end that communicates with the upper cavity, and a cover is provided on the upper opening end. The cover is provided with a through hole, the top of the pressure rod passes through the through hole, and the diameter of the flange on the rod body is larger than the diameter of the through hole.

[0012] Preferably, the base has a lower opening end that communicates with the lower cavity, and a first buffer pad is provided along the end face of the lower opening end.

[0013] Preferably, a pressure head is also fitted on the head of the pressure rod, and a second buffer pad is provided on the end face of the pressure head.

[0014] Preferably, a handle is fixedly connected to the free end of the rotating arm.

[0015] Preferably, the hinge end of the rotating arm is provided with a fulcrum shaft, the rotating arm support is formed with a shaft hole, the fulcrum shaft is inserted into the shaft hole and can rotate within the shaft hole, the fulcrum shaft is also provided with a limit hole, and a pin is provided in the limit hole to prevent the fulcrum shaft from coming out of the shaft hole.

[0016] These features and advantages of this application will be disclosed in detail in the following specific embodiments and accompanying drawings. The best embodiments or means of this application will be shown in detail in conjunction with the accompanying drawings, but are not intended to limit the technical solutions of this application. In addition, each of these features, elements and components appearing in the following text and drawings is multiple and is labeled with different symbols or numbers for convenience, but all represent parts with the same or similar structure or function. Attached Figure Description

[0017] The following description, in conjunction with the accompanying drawings, further illustrates this application:

[0018] Figure 1 This is a cross-sectional schematic diagram of the sealing ring pressing device according to an embodiment of this application;

[0019] Figure 2 This is a top view of the sealing ring pressing device according to an embodiment of this application;

[0020] Figure 3 This is a cross-sectional schematic diagram of the compression bar according to an embodiment of this application.

[0021] Among them, 1. Second buffer pad; 2. First buffer pad; 3. Base; 4. Elastic element; 6. Rotary arm support; 7. Pivot shaft; 8. Pin; 9. Slide groove; 10. Connecting shaft; 11. Rolling bearing; 12. Handle; 13. Rotary arm; 14. Cover; 16. Pressure rod; 17. Pressure head; 18. Flange; 19. Sealing ring; 31. Upper cavity; 32. Lower cavity; 161. Rod body; 162. Rod head; 163. Flange. Detailed Implementation

[0022] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described are intended to explain this application and should not be construed as limiting it.

[0023] The terms "an embodiment," "example," or "example" used in this specification refer to a particular feature, structure, or characteristic described in connection with the embodiment itself that may be included in at least one embodiment disclosed in this application. The phrase "in an embodiment" appearing in various places throughout the specification does not necessarily refer to the same embodiment.

[0024] Vacuum coating equipment is widely used in modern industrial production, and its working environment requires maintaining a high vacuum or ultra-high vacuum state. For equipment loading, unloading, and maintenance, the vacuum chamber door needs to be frequently opened and closed. Typically, metal seals such as oxygen-free copper rings cannot be used for the chamber door; instead, fluororubber rings are required. This sealing method requires machining an annular sealing groove on the surface of the chamber door or the workpiece to be sealed, and then pressing the O-ring into the groove. Due to requirements for filling rate or preventing it from falling out during use, the opening distance at the top of the sealing groove must be smaller than the diameter of the sealing ring; that is, a dovetail-shaped sealing groove is usually used. Given the high hardness of the sealing ring itself, a significant force is required when pressing it into the groove, especially for large-diameter sealing rings (8mm or more). Vacuum grease needs to be applied, and tools such as round bars are used for forceful compression. Existing installation methods are inefficient and require high manual strength from operators. Furthermore, the dimensions and shapes of sealing rings and sealing grooves vary, and the external tools used during pressing are not standardized, making it difficult to establish standardized operations and easily causing damage to the sealing ring. Therefore, there is an urgent need for a dovetail groove sealing ring pressing device for pressing and installing sealing rings in the dovetail grooves of vacuum equipment or sealing components. This device aims to overcome the defects of existing installation methods, such as uneven pressure, sealing ring damage, finger fatigue, and inconvenient operation due to insufficient structural compactness. It also aims to improve the efficiency of sealing ring installation, reduce the hand strength requirements of operators, and achieve standardized operation.

[0025] In view of this, this embodiment proposes a sealing ring pressing device, including a base 3, a pressure rod 16, and a rotating arm 13. The pressure rod 16 is used to press the sealing ring 19 at the bottom of the base 3 into the sealing ring groove on the surface of the workpiece. The base 3 is provided with a receiving cavity that extends through the height direction. The pressure rod 16 is disposed in the receiving cavity. The base 3 is also provided with a rotating arm support 6. The two ends of the rotating arm 13 are respectively provided as a hinged end and a free end. The hinged end of the rotating arm 13 is hinged to the rotating arm support 6. The hinged end and the free end of the rotating arm 13 are also hinged to the top of the pressure rod 16, so that when the rotating arm 13 rotates around the rotating arm support 6, the pressure rod 16 moves in the height direction within the receiving cavity.

[0026] In use, the base 3 is placed above the surface of the workpiece into which the sealing ring 19 needs to be pressed, so that the sealing ring 19 and the workpiece with the sealing ring groove are placed at the bottom of the receiving cavity of the base 3 and at the bottom of the pressure rod 16. By rotating the rotating arm 13 downward, the pressure rod 16 moves downward, thereby pressing the sealing ring 19 into the sealing groove.

[0027] In this embodiment, the lever arm 13 drives the pressure rod 16 to move downward, thereby pressing the sealing ring 19 in the receiving cavity at the bottom of the base 3 into the sealing ring groove on the surface of the workpiece below the sealing ring 19. The lever arm 13 is used for force transmission, making the pressing process of the sealing ring 19 less laborious, more efficient, and allowing the sealing ring 19 to be subjected to more uniform force during the pressing process into the sealing ring groove.

[0028] In some embodiments, the receiving cavity includes an upper cavity 31 and a lower cavity 32 that are sequentially arranged along the height direction and communicate with each other. The pressure rod 16 includes a rod body 161 extending downward from the top and a rod head 162 located at the bottom of the pressure rod 16. The rod body 161 is located in the upper cavity 31, and the rod head 162 can extend from the upper cavity 31 into the lower cavity 32. In use, the sealing ring 19 and the workpiece with the sealing ring groove are placed at the bottom of the lower cavity 32. The pressure rod 16 is moved downward by pressing down the rotating arm 13, thereby pressing the sealing ring 19 into the sealing ring groove by the rod head 162 of the pressure rod 16.

[0029] In some embodiments, a flange 163 is formed on the rod body 161 of the pressure rod 16, and an elastic element 4 is sleeved on the rod body 161. One end of the elastic element 4 abuts against the flange 163, and the other end abuts against the bottom of the upper cavity 31. In the compressed state, the elastic element 4 applies a force to the pressure rod 16, causing it to move to the top of the upper cavity 31. By providing a flange 163 on the rod body 161 of the pressure rod 16 and sleeved with an elastic element 4 on the rod body 161 between the flange 163 and the bottom of the upper cavity 31, the pressure rod 16 can return to its original position under the action of the elastic element 4. The elastic element 4 can be a return spring. When the downward force applied to the rotating arm 13 is eliminated, the pressure rod 16 can move upward and return to its original position under the action of the return spring.

[0030] In some embodiments, the rotating arm 13 is provided with a sliding groove 9, and the top of the pressure rod 16 is provided with a connecting shaft 10, which passes through the sliding groove 9 and can move along the sliding groove 9. When the rotating arm 13 rotates about the hinge end (lifts up or presses down on the rotating arm 13), the connecting shaft 10 at the top of the pressure rod 16 slides along the sliding groove 9 to ensure that the pressure rod 16 always moves up and down along the height direction of the base 3.

[0031] In some embodiments, a rolling bearing 11 is also sleeved on the connecting shaft 10. The rolling bearing 11 can roll within the slide groove 9. By setting the rolling bearing 11, the coefficient of friction between the connecting shaft 10 and the slide groove 9 can be reduced, making the sliding of the connecting shaft 10 within the slide groove 9 smoother. At the same time, it can prevent the sliding friction between the connecting shaft 10 and the slide groove 9 from damaging the connecting shaft 10.

[0032] In some embodiments, the base 3 has an upper opening end communicating with the upper cavity 31. A cover 14 is provided on the upper opening end, and the cover 14 is provided with a through hole. The top of the pressure rod 16 passes through the through hole, and the diameter of the flange 163 on the rod body 161 is larger than the diameter of the through hole. Providing the cover 14 at the upper opening end of the upper cavity 31 can limit the excessive upward movement of the pressure rod 16, and at the same time prevent dust and other particles from entering the upper cavity 31, thus extending the service life of the device.

[0033] In some embodiments, the base 3 has a lower opening end that communicates with the lower cavity 32. A first buffer pad 2 is provided along the end face of the lower opening end. By providing the first buffer pad 2 at the lower opening end of the lower cavity 32, the bottom of the base 3 can be prevented from damaging the surface of the workpiece.

[0034] In some embodiments, a pressure head 17 is also sleeved on the rod head 162 of the pressure rod 16. A second buffer pad 1 is provided on the end face of the pressure head 17. By providing the second buffer pad 1 on the end face of the pressure head 17, the pressure head 17 can be prevented from damaging the sealing ring 19 and the sealing ring groove.

[0035] In some embodiments, a handle 12 is fixedly connected to the free end of the rotating arm 13, and the handle 12 facilitates the application of force to the rotating arm 13.

[0036] In some embodiments, the hinge end of the rotating arm 13 is provided with a fulcrum shaft 7, and the rotating arm support 6 is provided with a shaft hole. The fulcrum shaft 7 is inserted into the shaft hole and can rotate within the shaft hole. The fulcrum shaft 7 is also provided with a limit hole, and a pin 8 is provided in the limit hole. The pin 8 is used to prevent the fulcrum shaft 7 from coming out of the shaft hole.

[0037] In summary, when using the sealing ring pressing device of this embodiment, the base 3 is placed above the surface of the workpiece into which the sealing ring 19 needs to be pressed, so that the sealing ring 19 and the workpiece with the sealing ring groove are placed at the bottom of the lower cavity 32 of the base 3 and below the pressing head 17. By pressing down the handle 12, the rotating arm 13 is rotated downward, thereby causing the pressing rod 16 to move downward. The pressing head 17 follows the pressing rod 16 downward and presses the sealing ring 19 into the sealing groove. After the sealing ring 19 is pressed into the sealing groove, the handle 12 is released, and the pressing rod 16 moves upward and resets under the action of the elastic member 4. The pressing head 17 is lifted off the sealing ring 19, and the pressing device is picked up to complete the pressing operation of the sealing ring 19. This embodiment employs a lever-based force-saving mechanism, reducing the required operating force. The elastic element 4 automatically resets, improving installation efficiency. It can match various sizes of sealing rings 19 and sealing ring grooves, achieving standardized and unified operation. The first buffer pad 2 and the second buffer pad 1 are provided to reduce installation damage to the workpiece and sealing ring 19 caused by the pressing device. In addition, the sealing ring pressing device in this embodiment has a compact structure design, requiring less space for installation, and is simple to operate and maintain.

[0038] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Those skilled in the art should understand that this application includes, but is not limited to, the contents described in the accompanying drawings and the specific embodiments above. Any modifications that do not depart from the functional and structural principles of this application will be included within the scope of the claims.

Claims

1. A sealing ring pressing device, comprising a base (3), a pressure rod (16), and a rotating arm (13), characterized in that, The pressure rod (16) is used to press the sealing ring (19) at the bottom of the base (3) into the sealing ring groove on the surface of the workpiece. The base (3) is provided with a receiving cavity that extends through the height direction. The pressure rod (16) is located in the receiving cavity. The base (3) is also provided with a rotating arm support (6). The two ends of the rotating arm (13) are respectively set as a hinged end and a free end. The hinged end of the rotating arm (13) is hinged to the rotating arm support (6). The hinged end and the free end of the rotating arm (13) are also hinged to the top of the pressure rod (16) so that when the rotating arm (13) rotates around the rotating arm support (6), the pressure rod (16) moves in the receiving cavity along the height direction.

2. The sealing ring pressing device according to claim 1, characterized in that, The receiving cavity includes an upper cavity (31) and a lower cavity (32) arranged sequentially along the height direction and communicating with each other. The pressure rod (16) includes a rod body (161) extending downward from the top and a rod head (162) located at the bottom of the pressure rod (16). The rod body (161) is located in the upper cavity (31), and the rod head (162) can extend from the upper cavity (31) into the lower cavity (32).

3. The sealing ring pressing device according to claim 2, characterized in that, A flange (163) is formed on the rod body (161) of the pressure rod (16), and an elastic element (4) is sleeved on the rod body (161). One end of the elastic element (4) abuts against the flange (163), and the other end abuts against the bottom of the upper cavity (31). When compressed, the elastic element (4) applies a force to the pressure rod (16) to move it to the top of the upper cavity (31).

4. The sealing ring pressing device according to claim 1, characterized in that, The rotating arm (13) is provided with a sliding groove (9), and the top of the pressure rod (16) is provided with a connecting shaft (10). The connecting shaft (10) passes through the sliding groove (9) and can move along the sliding groove (9).

5. The sealing ring pressing device according to claim 4, characterized in that, A rolling bearing (11) is also fitted on the connecting shaft (10), and the rolling bearing (11) can roll in the groove (9).

6. The sealing ring pressing device according to claim 3, characterized in that, The base (3) has an upper opening end that communicates with the upper cavity (31). A cover (14) is provided on the upper opening end. A through hole is provided on the cover (14). The top of the pressure rod (16) passes through the through hole. The diameter of the flange (163) on the rod body (161) is larger than the diameter of the through hole.

7. The sealing ring pressing device according to claim 2, characterized in that, The base (3) has a lower opening end that communicates with the lower cavity (32), and a first buffer pad (2) is provided along the end face of the lower opening end.

8. The sealing ring pressing device according to claim 3, characterized in that, The head (162) of the pressure rod (16) is also fitted with a pressure head (17), and a second buffer pad (1) is provided on the end face of the pressure head (17).

9. The sealing ring pressing device according to any one of claims 1 to 8, characterized in that, A handle (12) is fixedly connected to the free end of the rotating arm (13).

10. The sealing ring pressing device according to any one of claims 1 to 8, characterized in that, The hinge end of the rotating arm (13) is provided with a pivot shaft (7), and a shaft hole is formed on the rotating arm support (6). The pivot shaft (7) is inserted into the shaft hole and can rotate within the shaft hole. The pivot shaft (7) is also provided with a limit hole, and a pin (8) is provided in the limit hole. The pin (8) is used to restrict the pivot shaft (7) from coming out of the shaft hole.

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