A multi-layer sealed end cap for an optical encoder

Abstract

The utility model relates to a kind of multilayer sealing end cover of photoelectric encoder, including end cap, long rod, snap ring, clamping column and tension spring, end cap is detachably connected on the port of shell, the shape of end cap and the port of shell is circular, end cap and the port of shell are respectively on the face of the place of departure abutment along the even uniform corresponding several pairs of clamping column of outer edge, shell side is equipped with long rod, long rod is equipped with the snap ring of corresponding clamping column in the end close to end cap, and tension spring is connected between clamping column and shell outer wall.The utility model has the advantages of easy to assemble and disassemble, good protection.

Description

Technical Field

[0001] This utility model relates to the field of encoder technology, specifically to a multi-layer sealed end cap for an optical encoder. Background Technology

[0002] An optical encoder is a sensor that converts the mechanical geometric displacement on the output shaft into pulses or digital signals through photoelectric conversion. It can measure data such as motor speed, rotation angle, and object rotation direction, and is therefore widely used in the control feedback of servo motor speed and rotation angle. Currently, the encoder housing and end cover are usually connected by several screws. Tightening these screws involves a significant amount of work, making assembly and disassembly cumbersome and reducing efficiency. Utility Model Content

[0003] The purpose of this utility model is to provide a multi-layer sealed end cap for a photoelectric encoder, which has the advantages of easy installation and disassembly and good protection.

[0004] The technical solution of this utility model is as follows:

[0005] A multi-layer sealed end cap for an optical encoder includes an end cap, a long rod, a retaining ring, retaining pins, and a tension spring. The end cap is detachably connected to a port of a housing. Both the end cap and the port of the housing are circular in shape. Each port of the end cap and the housing has a plurality of pairs of corresponding retaining pins evenly arranged along the outer edge of the surface away from the contact point. The side of the housing is provided with a long rod, and a retaining ring corresponding to a retaining pin is provided at one end of the long rod near the end cap. A tension spring is connected between the retaining pin and the outer wall of the housing.

[0006] Preferably, the housing is cylindrical in shape, with the ports of the housing located at the upper and lower ends, and the locking pins located on the upper and lower sides corresponding to each other.

[0007] Preferably, the long rod is provided with a connecting rod, the end of the connecting rod is provided with a slider, the side of the housing is provided with a sliding cavity that is slidably connected to the slider, the sliding cavity is provided with a through hole for the connecting rod to pass through, a tension spring is provided between the slider and the bottom of the sliding cavity, and the slider is provided with a locking component for fixing the position.

[0008] Preferably, the locking assembly includes a top block and a compression spring. The slider is provided with a slide rail leading to the inner wall of the sliding cavity. The top block is slidably connected to the slide rail. A compression spring is connected between the top block and the bottom of the slide rail. The side wall at the top of the sliding cavity is provided with a groove corresponding to the slide rail. The groove is open to both the inside and outside. A movable block is slidably connected to the groove. When the slide rail moves to align with the groove, the top block can extend into the groove under the action of the compression spring and push the movable block outward.

[0009] Preferably, the long rod has a rubber strip on its outer side, the sliding cavity has a rubber ring at the opening, and the end cap has a rubber sleeve over its opening.

[0010] Preferably, the number of the long rods is 4.

[0011] Preferably, the ports of the end cap and the housing are each provided with corresponding protruding rings and annular grooves at their contact points, and the protruding rings are placed into the corresponding annular grooves.

[0012] The beneficial technical effects of this utility model are as follows:

[0013] 1. By using a combination of retaining rings, retaining posts, and long rods, the end cap can be quickly attached to and detached from the housing port. Compared with the traditional connection structure that uses screws to connect the end cap and the housing, it is easier to operate. The tension spring provides the pulling force to pull the rod towards the housing, so that the retaining ring on the long rod can be stably locked onto the retaining post.

[0014] 2. By using long rods to surround the outside of the housing, along with rubber strips, rubber rings, and rubber sleeves, the impact resistance of the end caps and housing is improved, thus enhancing protective performance. Attached Figure Description

[0015] The technical solution of this utility model will be further described below with reference to the accompanying drawings.

[0016] Appendix Figure 1 This is the front view of the present invention.

[0017] Appendix Figure 2 This is a front-view cross-sectional view of the present invention.

[0018] Appendix Figure 3 for Figure 2 Enlarged view of part A.

[0019] Appendix Figure 4 This is a top view of the present invention.

[0020] In the diagram: 1-End cap, 2-Long rod, 3-Snap ring, 4-Snap pin, 5-Tension spring, 6-Connecting rod, 7-Slider, 8-Sliding cavity, 9-Through hole, 10-Locking assembly, 11-Top block, 12-Compression spring, 13-Slide rail, 14-Slide groove, 15-Moving block, 16-Rubber strip, 17-Rubber ring, 18-Rubber sleeve, 19-Protruding ring, 20-Ring groove. Detailed Implementation

[0021] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0022] Example:

[0023] like Figures 1 to 4As shown, this embodiment provides a multi-layer sealed end cap for an optical encoder, including an end cap 1, a long rod 2, a retaining ring 3, retaining posts 4, and a tension spring 5. The end cap 1 is detachably connected to the port of the housing. The end cap 1 and the port of the housing are circular in shape. Each of the end cap 1 and the port of the housing has a plurality of pairs of corresponding retaining posts 4 evenly provided along the outer edge of the surface away from the contact point. The side of the housing is provided with a long rod 2. The end of the long rod 2 near the end cap 1 is provided with a retaining ring 3 corresponding to the retaining post 4. The retaining post 4 is connected to the outer wall of the housing with a tension spring 5.

[0024] The combination of the retaining ring 3, retaining post 4, and long rod 2 enables quick installation and removal of the end cap 1 to the housing port. This is more convenient than the traditional connection structure that uses screws to connect the end cap 1 and the housing. The tension spring 5 provides the pulling force to pull the rod towards the housing, allowing the retaining ring 3 on the long rod 2 to be stably locked onto the retaining post 4. The long rod 2 surrounds the outside of the housing to enhance its impact resistance.

[0025] Furthermore, the shell is cylindrical in shape, with the ports located at the upper and lower ends of the shell, and four pairs of corresponding locking posts on the upper and lower sides.

[0026] A long rod 2 can simultaneously control the clamping and pulling out of the clamping rings 3 on the upper and lower sides of the clamping posts 4, thereby improving the efficiency of assembly and disassembly.

[0027] Furthermore, the long rod 2 is provided with a connecting rod 6, the end of the connecting rod 6 is provided with a slider 7, the side of the housing is provided with a sliding cavity 8 that is slidably connected to the slider 7, the sliding cavity 8 is provided with a through hole 9 for the connecting rod 6 to pass through, a tension spring 5 is provided between the slider 7 and the bottom of the sliding cavity 8, and a locking component 10 for fixing the position is provided on the slider 7.

[0028] The connecting rod 6, slider 7, and sliding cavity 8 restrict the movement direction of the long rod 2, preventing it from deviating from the correct movement trajectory and causing the retaining ring 3 to fail to align with the retaining post 4. The locking assembly 10 is used to fix the position of the slider 7, allowing the slider 7 to overcome the tension of the tension spring 5 and stop in its original position, so that the user can release the long rod 2 to perform other operations.

[0029] Furthermore, the locking assembly 10 includes a top block 11 and a compression spring 12. The slider 7 is provided with a slide 13 leading to the inner wall of the sliding cavity 8. The top block 11 is slidably connected to the slide 13. The compression spring 12 is connected between the top block 11 and the bottom of the slide 13. The side wall at the top of the sliding cavity 8 is provided with a groove 14 corresponding to the slide 13. The groove 14 is connected inside and outside. A movable block 15 is slidably connected to the groove 14. When the slide 13 moves to align with the groove 14, the top block 11 can extend into the groove 14 under the action of the compression spring 12 and push the movable block 15 outward.

[0030] By inserting the top block 11 into the slide groove 14, the position of the slider 7 on the sliding cavity 8 is fixed, thereby temporarily fixing the long rod 2 indirectly connected to the slider 7. The compression spring 12 is used to provide the thrust to push the top block 11 out of the slide 13. The slide 13 is used to limit the movement direction of the top block 11. The movable block 15 is used to facilitate the user to press the top block 11 from the slide groove 14 back into the contact of the slide 13. When it is necessary to reset the long rod 2, the user presses the movable block 15 back into the slide groove 14. The reset movable block 15 presses the top block 11 out of the slide groove 14. At this time, the slider 7 can be smoothly pulled back to its original position by the tension spring 5, thereby driving the long rod 2 to reset.

[0031] Specifically, in order to prevent the friction between the pressing slider 7 and the inner wall of the sliding cavity 8 from hindering the sliding of the slider 7, a lubricant is applied to the inner wall of the sliding cavity 8.

[0032] Furthermore, the long rod 2 is provided with a rubber strip 16 facing outwards, the sliding cavity 8 is provided with a rubber ring 17 at the opening, and the end cap 1 is covered with a rubber sleeve 18.

[0033] The combination of rubber strip 16, rubber ring 17 and rubber sleeve 18 improves the impact resistance of end cap 1 and housing, thus enhancing protection performance.

[0034] Furthermore, the number of long rods 2 is 4.

[0035] Furthermore, the end cap 1 and the port of the housing are respectively provided with corresponding protruding rings 19 and annular grooves 20 at the contact points, with the protruding rings 19 inserted into the corresponding annular grooves 20.

[0036] The protruding ring 19 and the annular groove 20 help to accurately position the end cap 1 and improve the sealing between the end cap 1 and the housing port.

[0037] Working principle and usage process of this utility model:

[0038] When installing end cap 1, first pull each long rod 2 outward until the movable block 15 is pushed out. Then, align the end cap 1 with the locking pin 4 and install it on the port of the housing. Then, press the movable block 15 down until the top block 11 is pressed away from the slide groove 14. Under the action of the tension spring 5, the slider 7 is reset. The reset slider 7 drives the long rod 2 to reset via the connecting rod 6. The reset long rod 2 allows the retaining ring 3 to lock onto the locking pin 4, thereby fixing the connection between end cap 1 and the port of the housing.

[0039] When removing end cap 1, first pull each long rod 2 outward until the movable block 15 is pushed out. The pulled long rod 2 causes the retaining ring 3 to disengage from the retaining post 4. Then, remove end cap 1 from the housing port, and then press the movable block 15 down until the top block 11 is pressed away from the slide groove 14. The slider 7 is reset under the action of the tension spring 5. The reset slider 7 drives the long rod 2 to reset via the connecting rod 6.

[0040] The above are merely specific application examples of this utility model and do not constitute any limitation on the scope of protection of this utility model. All technical solutions formed by equivalent transformations or equivalent substitutions fall within the scope of protection of this utility model.

Claims

1. A multi-layer sealed end cap for a photoelectric encoder, characterized in that: The device includes an end cap, a long rod, a retaining ring, retaining posts, and a tension spring. The end cap is detachably connected to the port of the housing. The end cap and the port of the housing are circular in shape. Each of the end cap and the port of the housing has several pairs of corresponding retaining posts evenly arranged along the outer edge of the surface away from the contact point. The side of the housing is provided with a long rod. The end of the long rod near the end cap is provided with a retaining ring corresponding to the retaining post. A tension spring is connected between the retaining post and the outer wall of the housing.

2. The multi-layer sealed end cap of a photoelectric encoder according to claim 1, characterized in that: The housing is cylindrical in shape, with its ports located at the top and bottom ends, and the locking pins on the top and bottom sides corresponding to each other.

3. The multi-layer sealed end cap of a photoelectric encoder according to claim 2, characterized in that: The long rod is provided with a connecting rod, and the end of the connecting rod is provided with a slider. The side of the housing is provided with a sliding cavity that is slidably connected to the slider. The sliding cavity is provided with a through hole for the connecting rod to pass through. A tension spring is provided between the slider and the bottom of the sliding cavity. The slider is provided with a locking component for fixing the position.

4. The multi-layer sealed end cap of a photoelectric encoder according to claim 3, characterized in that: The locking assembly includes a top block and a compression spring. The slider has a slide rail leading to the inner wall of the sliding cavity. The top block is slidably connected to the slide rail. A compression spring is connected between the top block and the bottom of the slide rail. The side wall at the top of the sliding cavity has a corresponding groove to the slide rail. The groove is open to both the inside and outside. A movable block is slidably connected to the groove. When the slide rail moves to align with the groove, the top block can extend into the groove under the action of the compression spring and push the movable block outward.

5. The multi-layer sealed end cap of a photoelectric encoder according to claim 4, characterized in that: The long rod has a rubber strip on its outer side, the sliding cavity has a rubber ring at the opening, and the end cap has a rubber sleeve over its opening.

6. The multi-layer sealed end cap of a photoelectric encoder according to claim 5, characterized in that: The number of long rods is 4.

7. The multi-layer sealed end cap of a photoelectric encoder according to claim 1, characterized in that: The end cap and the housing each have corresponding protruding rings and grooves at their contact points, with the protruding rings fitting into the corresponding grooves.

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