A small rotary encoder

Abstract

The application discloses a small rotary encoder, which is applied to the technical field of encoders. The encoder assembly and the reinforcing mechanism are arranged. When the encoder assembly is installed and used, the encoder assembly is installed in the interiors of the front shell and the rear shell respectively, the front side of the encoder assembly penetrates the interior of the front shell, is wrapped by the fixed-point assembly in the interior of the front shell, is clamped and positioned by the clamping assembly in the interior of the fixed-point assembly, and is locked by the locking assembly outside the fixed-point assembly. In this way, the front side of the encoder assembly is fixed, and then the auxiliary rotating assembly arranged in the rear side of the interior of the front shell is matched to be auxiliary sleeved. In this way, subsequent rotating use is facilitated, the structure of the front side of the encoder assembly is reinforced to improve stability, and in this way, the performance is better in actual use.

Description

Technical Field

[0001] This invention belongs to the field of encoder technology, and specifically relates to a small rotary encoder. Background Technology

[0002] Rotary encoders are commonly used to measure the angle and speed of rotating objects. They have wide applications in industries such as automation control, metallurgy, wind power generation, and office supplies. Rotary encoders can be classified into contact encoders, photoelectric encoders, and electromagnetic encoders according to their operating principle. Contact encoders are simple in method but are bulky and have lower measurement accuracy. Because they are contact measurements, the equipment is easily damaged. Photoelectric encoders are non-contact encoders with higher accuracy but are more expensive and sensitive to rain and fog. Magnetic encoders, which utilize the magnetoresistive effect, have advantages over photoelectric and contact encoders, such as small size, simple structure, and good environmental resistance, and have broad application prospects.

[0003] Currently, Chinese invention patent CN101535771 discloses a small rotary encoder. This invention provides a small rotary encoder that allows the substrate to be easily fixed in the appropriate position without the use of adhesives. By providing a slot in the encoder housing, a part of the encoder housing becomes a leaf spring shape. Furthermore, a stepped portion and a claw portion are provided on the inner circumferential surface of the encoder housing. Protrusions and recesses that combine with each other are provided on the inner circumferential surface of the encoder housing and the substrate. When the substrate is inserted, the encoder housing flexes through the slot, allowing the substrate to be inserted into its inner circumference. The substrate can be clamped and fixed by the stepped portion and the claw portion. In addition, the misalignment of the substrate in the circumferential direction can be suppressed, and positioning can be easily achieved.

[0004] Existing small rotary encoders have the following disadvantages when in use:

[0005] 1. The encoder shaft structure of its small rotary encoder has poor stability, resulting in poor practical performance in actual use;

[0006] 2. The waterproof sealing structure of the encoder body shell of the small rotary encoder is not very stable, which makes it easy for water vapor to penetrate inside. In addition, there is no anti-static structure inside, so it cannot be guaranteed that the generated static electricity will not affect the encoder body. Summary of the Invention

[0007] The purpose of this invention is to address an existing small rotary encoder, the advantages of which are:

[0008] 1. Improve the structural stability of the encoder rotating shaft of the small rotary encoder to ensure better performance in actual use;

[0009] 2. Improve the stability of the waterproof sealing structure of the encoder body shell of the small rotary encoder to prevent water vapor penetration. At the same time, set an anti-static structure inside the shell to ensure the absorption of static electricity, thereby avoiding its impact on the encoder body.

[0010] The above-mentioned technical objective of the present invention is achieved through the following technical solution: a small rotary encoder, including a front shell and a rear shell, wherein the front side of the rear shell is inserted into the rear side of the front shell, an encoder assembly is disposed inside the rear shell, the front side of the encoder assembly penetrates the interior of the front shell, a reinforcing mechanism is disposed on the outer side of the encoder assembly, a sealing mechanism is disposed on the inner side of the front shell and the rear shell, a protective component is disposed on the right side of the rear shell, and an anti-static component is disposed on the rear side of the rear shell;

[0011] The reinforcement mechanism includes a positioning component, a clamping component, a locking component, and an auxiliary rotating component. The positioning component is located on the front side inside the front housing. The clamping component is located inside the positioning component and on the outer side of the front side of the encoder component. The locking component is located on the outer side of the clamping component. The auxiliary rotating component is located on the rear side inside the front housing and on the outer side of the front side of the encoder component. The sealing mechanism includes a close-connection component and a sealing component. The close-connection component is located on the inner side of the front and rear housings. The sealing component is located on the outer side of the front side of the rear housing.

[0012] By adopting the above technical solution, and by setting up an encoder assembly and a reinforcing mechanism, the encoder assembly is installed inside the front and rear housings during installation and use. The front side of the encoder assembly penetrates the interior of the front housing, then is wrapped by a positioning component inside the front housing, and then clamped and positioned by a clamping component inside the positioning component. Finally, it is locked by a locking component outside the positioning component, thus fixing the front side of the encoder assembly. An auxiliary rotating component located at the rear inside the front housing further assists in the mounting process, facilitating subsequent rotation and reinforcing the front structure of the encoder assembly to improve stability, thereby ensuring... In practical use, it offers superior performance. By incorporating a sealing mechanism, protective components, and anti-static components, and by installing a tight-fitting component between the front and rear housings, the encoder assembly is connected within both housings. A sealing component on the front of the rear housing further ensures a waterproof seal. The wiring structure on the right side of the rear housing is protected by a protective component, and an anti-static component is fixed to the rear of the rear housing to prevent static electricity generation during operation. This overall design ensures a waterproof seal between the front and rear housings and absorbs static electricity, preventing any impact on the encoder assembly.

[0013] The present invention is further configured such that: the encoder assembly includes an encoder body, an encoder rotating shaft and a wire terminal; the encoder body is disposed inside the rear housing; the encoder rotating shaft is disposed on the front side of the encoder body; the front side of the encoder rotating shaft penetrates the front housing and is located inside the positioning assembly; the inner side of the wire terminal is electrically connected to the encoder body; and the outer side of the wire terminal penetrates the right side of the rear housing.

[0014] By adopting the above technical solution, the encoder body, encoder rotating shaft and wire terminals are set up. The encoder body is placed inside the rear housing, the encoder rotating shaft is placed on the front side of the encoder body and fixed, the front side of the encoder rotating shaft passes through the inside of the front housing, and finally the wire terminals used to connect the encoder body are passed through the right side of the inside of the rear housing, thus completing the basic setup and installation.

[0015] The present invention is further configured such that: the positioning component includes a positioning shell and a receiving sleeve, the positioning shell is fixedly connected to the front side inside the front shell, the receiving sleeve is fixedly connected to the inside of the positioning shell, and the inside of the receiving sleeve is located outside the wire terminal.

[0016] By adopting the above technical solution, a fixed shell and a receiving sleeve are set up. The fixed shell is fixedly connected to the inside of the front shell with the receiving sleeve inside it, thereby using the receiving sleeve to further limit the encoder's rotating shaft.

[0017] The present invention is further configured such that: the clamping assembly includes a connecting sleeve and an elastic latch, the rear side of the connecting sleeve is fixedly connected to the inside of the receiving sleeve and is located outside the wire terminal, and the elastic latch is disposed on the front side of the connecting sleeve and is located outside the wire terminal.

[0018] By adopting the above technical solution, by setting a connecting sleeve and an elastic latch, the encoder rotating shaft is limited by the receiving sleeve, and then the connecting sleeve is fixedly connected inside the receiving sleeve. Then, the elastic latch on its front side is used to achieve further elastic locking of the encoder rotating shaft, which facilitates the subsequent fixing and use of the encoder rotating shaft.

[0019] The present invention is further configured such that: the locking assembly includes a locking sleeve, a triangular groove and a fixing screw; the locking sleeve is sleeved on the outside of the elastic latch; the triangular groove is formed in the triangle on the front side of the locking sleeve; and the bottom of the fixing screw passes through the left and right triangular grooves at the top of the locking sleeve and is threaded to the bottom side inside the right triangular groove.

[0020] By adopting the above technical solution, a locking sleeve, a triangular groove, and a fixing screw are set. The locking sleeve is placed on the outside of the elastic latch, and a triangular groove is opened in the triangle of the locking sleeve. Then, the locking sleeve is locked in conjunction with the fixing screw, thereby compressing the triangular groove and squeezing the locking sleeve. Finally, the encoder rotating shaft inside the elastic latch is fixed for use, thereby achieving the stability of the encoder rotating shaft during use and ensuring better performance in actual use.

[0021] The present invention is further configured such that: the auxiliary rotating assembly includes a fixed sleeve and an inner pulley shaft, the fixed sleeve is fixedly connected to the rear side inside the front housing and located outside the encoder rotating shaft, and the inner pulley shaft is fixedly connected to the inside of the fixed sleeve and rotatably connected to the outside of the encoder rotating shaft.

[0022] By adopting the above technical solution, a fixed sleeve and an inner pulley shaft are set. The fixed sleeve is fixedly connected inside the front housing, and then the inner pulley shaft inside the fixed sleeve is used to fit the encoder rotating shaft, thereby further improving the stability of the encoder rotating shaft during operation.

[0023] The present invention is further configured such that: the close-connection assembly includes a retaining sleeve, a screw hole and a sealing bolt; the retaining sleeve is welded to the front side of the rear shell, the front side of the retaining sleeve is engaged with the rear side of the front shell; the screw hole is opened around the outer side of the retaining sleeve; and the sealing bolt passes through the outer side of the front shell and is threadedly connected to the screw hole.

[0024] By adopting the above technical solution, by setting a snap-fit ​​sleeve, screw holes and sealing bolts, and welding the snap-fit ​​sleeve on the front side of the rear shell, the rear shell and the front shell can be snapped together, and the sealing performance of the connection between the rear shell and the front shell can be improved. Then, the sealing bolts are used to connect the four corners of the outer side of the front shell to the screw holes opened on the outer side of the snap-fit ​​sleeve, thereby fixing the rear shell and the front shell.

[0025] The present invention is further configured such that: the sealing assembly includes a groove and a waterproof sealing gasket, the groove is formed on the outer side of the front side of the housing, the waterproof sealing gasket is snapped into the inside of the groove, and the front side of the waterproof sealing gasket contacts the rear side of the front housing.

[0026] By adopting the above technical solution, and by setting a groove and a waterproof sealing gasket, the rear shell is connected to the front shell. A groove is opened on the front side of the rear shell, and then a waterproof sealing gasket is embedded inside it to ensure the sealing of the connection between the rear shell and the front shell, thereby achieving waterproof and vapor-proof use.

[0027] The present invention is further configured such that: the protective component includes a threaded sleeve, a hollow nut, and a sealing sleeve; the threaded sleeve is welded to the right side of the rear housing and located outside the wire terminal; the hollow nut is threadedly connected to the outside of the threaded sleeve and located outside the wire terminal; and the sealing sleeve is welded to the right side of the hollow nut and located outside the wire terminal.

[0028] By adopting the above technical solution, a threaded sleeve, a hollow nut, and a protective sleeve are set. The threaded sleeve is welded to the right side of the rear shell and placed outside the wire terminal. Then, the hollow nut and the protective sleeve are threadedly connected to the threaded sleeve, thereby realizing the protection of the wire terminal using the hollow nut and the protective sleeve.

[0029] The present invention is further configured such that: the antistatic assembly includes a sealing base sleeve, a sealing ring, and an antistatic plate; the front side of the sealing base sleeve is bolted to the rear side of the rear shell; the sealing ring is bonded to the front side of the sealing base sleeve; the front side of the sealing ring contacts the rear side of the rear shell; and the antistatic plate is fixedly connected inside the sealing base sleeve.

[0030] By adopting the above technical solution, a sealing base sleeve, a sealing ring, and an anti-static plate are set. The sealing base sleeve is bolted to the rear side of the rear housing, and then the sealing ring is glued to the front side of the sealing base sleeve to achieve a sealing treatment at the connection of the rear housing. Finally, the anti-static plate set inside the sealing base sleeve contacts the encoder body inside the rear housing, thereby absorbing the static electricity generated by the encoder body during operation and avoiding any impact on the encoder assembly.

[0031] In summary, the present invention has the following beneficial effects:

[0032] 1. By setting up encoder components and a reinforcing mechanism, when installing and using the encoder components, the encoder components are installed inside the front and rear housings respectively, with the front side of the encoder components penetrating through the interior of the front housing. Then, they are wrapped by a positioning component inside the front housing, clamped and positioned by a clamping component inside the positioning component, and then locked by a locking component outside the positioning component. This fixes the front side of the encoder components. Then, an auxiliary rotating component located on the rear side inside the front housing is used for auxiliary fitting, which facilitates subsequent rotation and also strengthens the structure of the front side of the encoder components to improve stability, thereby ensuring better performance in actual use.

[0033] 2. By setting up a sealing mechanism, protective components, and anti-static components, and by setting a tight connection component between the front and rear housings, the encoder assembly is connected after being placed inside the front and rear housings. Then, a sealing component set on the front side of the rear housing achieves a waterproof seal with the front housing. Next, a protective component protects the wiring structure on the right side of the rear housing, and an anti-static component is fixedly set on the rear side of the rear housing to prevent the encoder assembly from generating static electricity during use. In this way, the whole system works together to ensure the waterproof sealing of the rear and front housings and to absorb static electricity, thereby preventing any impact on the encoder assembly. Attached Figure Description

[0034] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0035] Figure 2 This is a schematic diagram of the internal structure of the front and rear shells in this invention;

[0036] Figure 3 This is a schematic diagram of the encoder component structure in this invention;

[0037] Figure 4 This is a schematic diagram of the fixed-point component structure in this invention;

[0038] Figure 5 This is a schematic diagram of the clamping component structure in this invention;

[0039] Figure 6 This is a schematic diagram of the locking assembly structure in this invention;

[0040] Figure 7 This is a schematic diagram of the auxiliary transfer component structure in this invention;

[0041] Figure 8 This is a schematic diagram of the closely connected component structure in this invention;

[0042] Figure 9 This is a schematic diagram of the sealing component structure in this invention;

[0043] Figure 10 This is a schematic diagram of the protective component structure in this invention;

[0044] Figure 11 This is a schematic diagram of the antistatic component structure in this invention.

[0045] Reference numerals: 1. Front housing; 2. Rear housing; 3. Encoder assembly; 301. Encoder body; 302. Encoder rotating shaft; 303. Wire terminal; 4. Reinforcing mechanism; 401. Fixing assembly; 4011. Fixing housing; 4012. Receiving sleeve; 402. Clamping assembly; 4021. Connecting sleeve; 4022. Elastic latch; 403. Locking assembly; 4031. Locking sleeve; 4032. Triangular groove; 4033. Fixing screw; 404. Auxiliary rotating group Components; 4041, fixed sleeve; 4042, inner pulley shaft; 5, sealing mechanism; 501, tight connection assembly; 5011, snap sleeve; 5012, screw hole; 5013, sealing bolt; 502, sealing assembly; 5021, groove; 5022, waterproof sealing gasket; 6, protective assembly; 601, threaded sleeve; 602, hollow nut; 603, sealing sleeve; 7, antistatic assembly; 701, sealing bottom sleeve; 702, sealing ring; 703, antistatic plate. Detailed Implementation

[0046] The present invention will be further described in detail below with reference to the accompanying drawings.

[0047] Example 1:

[0048] refer to Figure 1-11 A small rotary encoder includes a front housing 1 and a rear housing 2. The front side of the rear housing 2 is inserted into the rear side of the front housing 1. An encoder assembly 3 is disposed inside the rear housing 2. The front side of the encoder assembly 3 penetrates the interior of the front housing 1. A reinforcing mechanism 4 is disposed on the outer side of the encoder assembly 3. The reinforcing mechanism 4 includes a fixing component 401, a clamping component 402, a locking component 403, and an auxiliary rotating component 404. The fixing component 401 is disposed on the front side inside the front housing 1. The clamping component 402 is disposed inside the fixing component 401 and located on the outer side of the front side of the encoder assembly 3. The locking component 403 is disposed on the outer side of the clamping component 402. The auxiliary rotating component 404 is disposed on the rear side inside the front housing 1 and located on the outer side of the front side of the encoder assembly 3. By setting the encoder assembly 3 and... The reinforcement mechanism 4, when installing and using the encoder assembly 3, installs the encoder assembly 3 inside the front housing 1 and the rear housing 2 respectively, with the front side of the encoder assembly 3 penetrating the interior of the front housing 1, then being wrapped by the positioning component 401 inside the front housing 1, then clamped and positioned by the clamping component 402 inside the positioning component 401, and then locked by the locking component 403 outside the positioning component 401. This fixes the front side of the encoder assembly 3. Then, it cooperates with the auxiliary rotation component 404 located on the rear side inside the front housing 1 for auxiliary sleeve, which facilitates subsequent rotation and also strengthens the structure of the front side of the encoder assembly 3 to improve stability, thereby ensuring better performance in actual use.

[0049] like Figure 3As shown, the encoder assembly 3 includes an encoder body 301, an encoder rotating shaft 302, and a wire terminal 303. The encoder body 301 is disposed inside the rear housing 2, and the encoder rotating shaft 302 is disposed on the front side of the encoder body 301. The front side of the encoder rotating shaft 302 penetrates the front housing 1 and is located inside the fixing assembly 401. The inner side of the wire terminal 303 is electrically connected to the encoder body 301, and the outer side of the wire terminal 303 penetrates the right side of the rear housing 2. By setting the encoder body 301, the encoder rotating shaft 302, and the wire terminal 303, the basic setup and installation are completed by first placing the encoder body 301 inside the rear housing 2, then placing the encoder rotating shaft 302 on the front side of the encoder body 301 and fixing it, then making the front side of the encoder rotating shaft 302 penetrate the interior of the front housing 1, and finally passing the wire terminal 303 used to connect the encoder body 301 through the right side of the interior of the rear housing 2.

[0050] like Figure 4 As shown, the positioning assembly 401 includes a fixed housing 4011 and a receiving sleeve 4012. The fixed housing 4011 is fixedly connected to the front side inside the front housing 1, and the receiving sleeve 4012 is fixedly connected to the inside of the fixed housing 4011. The inside of the receiving sleeve 4012 is located outside the wire terminal 303. By setting the fixed housing 4011 and the receiving sleeve 4012, and by fixing the fixed housing 4011 to the inside of the front housing 1 with the receiving sleeve 4012 inside it, the receiving sleeve 4012 is used to further limit the encoder rotating shaft 302.

[0051] like Figure 5 As shown, the clamping assembly 402 includes a connecting sleeve 4021 and an elastic latch 4022. The rear side of the connecting sleeve 4021 is fixedly connected to the inside of the receiving sleeve 4012 and is located outside the wire terminal 303. The elastic latch 4022 is located on the front side of the connecting sleeve 4021 and is located outside the wire terminal 303. By setting the connecting sleeve 4021 and the elastic latch 4022, the encoder rotating shaft 302 is limited by the receiving sleeve 4012, and the connecting sleeve 4021 is fixedly connected to the inside of the receiving sleeve 4012. Then, the elastic latch 4022 on its front side is used to achieve further elastic locking of the encoder rotating shaft 302, thereby facilitating the subsequent fixing and use of the encoder rotating shaft 302.

[0052] like Figure 6As shown, the locking assembly 403 includes a locking sleeve 4031, a triangular groove 4032, and a fixing screw 4033. The locking sleeve 4031 is fitted onto the outside of the elastic latch 4022. The triangular groove 4032 is formed in the triangle on the front side of the locking sleeve 4031. The bottom of the fixing screw 4033 passes through the left and right triangular grooves 4032 at the top of the locking sleeve 4031 and is threaded to the bottom side inside the right triangular groove 4032. By setting the locking sleeve 4031, the triangular groove 4032, and the fixing screw 4033, the locking assembly 4033 is tightened by locking the locking sleeve 4031. The sleeve 4031 is fitted onto the outside of the elastic latch 4022. A triangular groove 4032 is opened in the triangle of the sleeve 4031, and then the locking sleeve 4031 is locked in conjunction with the fixing screw 4033. This compresses the triangular groove 4032, thereby squeezing the sleeve 4031. Finally, the encoder rotating shaft 302 inside the elastic latch 4022 is fixed and used, thereby achieving the stability of the encoder rotating shaft 302 during use and ensuring better performance in actual use.

[0053] like Figure 7 As shown, the auxiliary rotating assembly 404 includes a fixed sleeve 4041 and an inner pulley shaft 4042. The fixed sleeve 4041 is fixedly connected to the rear side inside the front housing 1 and is located outside the encoder rotating shaft 302. The inner pulley shaft 4042 is fixedly connected inside the fixed sleeve 4041 and rotatably connected to the outside of the encoder rotating shaft 302. By setting the fixed sleeve 4041 and the inner pulley shaft 4042, the fixed sleeve 4041 is fixedly connected inside the front housing 1, and then the inner pulley shaft 4042 inside it is used to fit the encoder rotating shaft 302, thereby further improving the stability of the encoder rotating shaft 302 during subsequent use.

[0054] Brief description of the usage process: First, the encoder body 301 is placed inside the rear housing 2. Then, the encoder rotating shaft 302 is placed on the front side of the encoder body 301 and fixed. Next, the front side of the encoder rotating shaft 302 passes through the interior of the front housing 1. Finally, the wire terminal 303 used to connect the encoder body 301 passes through the right side of the interior of the rear housing 2, thus completing the basic setup and installation. On this basis, the fixed housing 4011, together with its internal receiving sleeve 4012, is fixedly connected to the interior of the front housing 1, thereby using the receiving sleeve 4012 to limit the encoder rotating shaft 302. Then, the connecting sleeve 4021 is fixedly connected to the interior of the receiving sleeve 4012, and then, with the help of its front elastic latch 4022, the encoder rotating shaft 302 is further elastically engaged. Then, the... The locking sleeve 4031 is fitted onto the outside of the elastic latch 4022. A triangular groove 4032 is opened in the triangle of the locking sleeve 4031, and then the locking sleeve 4031 is locked in conjunction with the fixing screw 4033. This compresses the triangular groove 4032, thereby squeezing the locking sleeve 4031 and finally fixing the encoder rotating shaft 302 inside the elastic latch 4022. Then, a fixed connecting sleeve 4041 is set inside the front housing 1, and the encoder rotating shaft 302 is fitted in conjunction with the inner pulley shaft 4042 inside it. This further improves the stability of the encoder rotating shaft 302 during subsequent use, and achieves overall stability of the encoder rotating shaft 302 during use, thus ensuring better performance in actual use.

[0055] Example 2:

[0056] refer to Figure 8-11 A small rotary encoder includes a sealing mechanism 5. The sealing mechanism 5 is disposed on the inner sides of the front housing 1 and the rear housing 2. A protective component 6 is disposed on the right side of the rear housing 2, and an anti-static component 7 is disposed on the rear side of the rear housing 2. The sealing mechanism 5 includes a tight-fitting component 501 and a sealing component 502. The tight-fitting component 501 is disposed on the inner sides of the front housing 1 and the rear housing 2, and the sealing component 502 is disposed on the outer side of the front side of the rear housing 2. By setting the sealing mechanism 5, the protective component 6, and the anti-static component 7, and by setting the tight-fitting component 501 between the front housing 1 and the rear housing 2, the encoder assembly is sealed. The encoder assembly 3 is connected inside the front housing 1 and the rear housing 2. Then, a sealing component 502 is set on the front side of the rear housing 2 to achieve a waterproof seal with the front housing 1. Then, a protective component 6 protects the wiring structure on the right side of the rear housing 2. Finally, an anti-static component 7 is fixedly set on the rear side of the rear housing 2 to prevent the encoder assembly 3 from generating static electricity during use. In this way, the whole assembly works together to ensure the waterproof seal between the rear housing 2 and the front housing 1, and to ensure the absorption of static electricity, so as to avoid affecting the encoder assembly 3.

[0057] like Figure 8 As shown, the tight-fitting assembly 501 includes a snap-fit ​​sleeve 5011, a screw hole 5012, and a sealing bolt 5013. The snap-fit ​​sleeve 5011 is welded to the front side of the rear shell 2, and the front side of the snap-fit ​​sleeve 5011 engages with the rear side of the front shell 1. The screw hole 5012 is opened around the outer perimeter of the snap-fit ​​sleeve 5011. The sealing bolt 5013 passes through the outer perimeter of the front shell 1 and is threadedly connected to the screw hole 5012. By setting the snap-fit ​​sleeve 5011, the screw hole 5012, and the sealing bolt 5013, and by welding the snap-fit ​​sleeve 5011 to the front side of the rear shell 2, the rear shell 2 and the front shell 1 are engaged, and the sealing performance at the connection between the rear shell 2 and the front shell 1 is improved. Then, by using the sealing bolt 5013 to connect through the four corners of the outer perimeter of the front shell 1 and the screw hole 5012 opened on the outer perimeter of the snap-fit ​​sleeve 5011, the rear shell 2 and the front shell 1 are fixed.

[0058] like Figure 9 As shown, the sealing assembly 502 includes a groove 5021 and a waterproof sealing gasket 5022. The groove 5021 is opened on the outer side of the front side of the housing, and the waterproof sealing gasket 5022 is snapped into the inside of the groove 5021. The front side of the waterproof sealing gasket 5022 contacts the rear side of the front housing 1. By setting the groove 5021 and the waterproof sealing gasket 5022, the rear housing 2 is connected to the front housing 1. By opening the groove 5021 on the front side of the rear housing 2 and then embedding the waterproof sealing gasket 5022 inside it, the sealing performance at the connection between the rear housing 2 and the front housing 1 is guaranteed, thereby achieving waterproof and vapor-proof use.

[0059] like Figure 10 As shown, the protective component 6 includes a threaded sleeve 601, a hollow nut 602, and a sealing sleeve 603. The threaded sleeve 601 is welded to the right side of the rear housing 2 and located outside the wire terminal 303. The hollow nut 602 is threadedly connected to the outside of the threaded sleeve 601 and located outside the wire terminal 303. The sealing sleeve 603 is welded to the right side of the hollow nut 602 and located outside the wire terminal 303. By setting the threaded sleeve 601, hollow nut 602, and sealing sleeve 603, and by welding the threaded sleeve 601 to the right side of the rear housing 2 and placing it outside the wire terminal 303, and then using the hollow nut 602 and the sealing sleeve 603 to thread the threaded sleeve 601, the wire terminal 303 can be protected using the hollow nut 602 and the sealing sleeve 603.

[0060] like Figure 11As shown, the anti-static assembly 7 includes a sealing base sleeve 701, a sealing ring 702, and an anti-static plate 703. The front side of the sealing base sleeve 701 is bolted to the rear side of the rear shell 2. The sealing ring 702 is bonded to the front side of the sealing base sleeve 701, and the front side of the sealing ring 702 contacts the rear side of the rear shell 2. The anti-static plate 703 is fixedly connected inside the sealing base sleeve 701. By setting the sealing base sleeve 701, the sealing ring 702, and the anti-static plate 703, and by bolting the sealing base sleeve 701 to the rear side of the rear shell 2, and then bonding the sealing ring 702 to the front side of the sealing base sleeve 701, the connection of the rear shell 2 is sealed. Finally, the anti-static plate 703, which is set inside the sealing base sleeve 701, contacts the encoder body 301 inside the rear shell 2, thereby absorbing the static electricity generated by the encoder body 301 during operation and thus preventing it from affecting the encoder assembly 3.

[0061] Brief description of the usage process: First, a snap-fit ​​sleeve 5011 is welded to the front side of the rear shell 2 to enable the snap-fit ​​connection between the rear shell 2 and the front shell 1, while improving the sealing performance at the connection point. Then, sealing bolts 5013 are used to connect the front shell 1 through the four corners on the outside and the snap-fit ​​sleeve 5011 through the screw holes 5012 on the outside, thus fixing the rear shell 2 to the front shell 1. Next, a groove 5021 is made on the front side of the rear shell 2, and a waterproof sealing gasket 5022 is embedded inside it to ensure the sealing performance at the connection point between the rear shell 2 and the front shell 1, thereby achieving waterproof and vapor-proof performance. Finally, a threaded sleeve 601 is welded to the right side of the rear shell 2 and positioned as a guide. The outer side of the wire terminal 303 is then connected to the threaded sleeve 601 by a hollow nut 602 and a protective sleeve 603, thereby protecting the wire terminal 303 with the hollow nut 602 and the protective sleeve 603. Finally, a sealing bottom sleeve 701 is bolted to the rear side of the rear housing 2, and a sealing ring 702 is glued to the front side of the sealing bottom sleeve 701 to seal the connection of the rear housing 2. Finally, the anti-static plate 703 set inside the sealing bottom sleeve 701 contacts the encoder body 301 inside the rear housing 2 to absorb the static electricity generated by the encoder body 301 during operation, thereby avoiding any impact on the encoder assembly 3.

[0062] This specific embodiment is merely an explanation of the present invention and is not intended to limit the invention. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A small rotary encoder, comprising a front housing (1) and a rear housing (2), characterized in that: The front side of the rear shell (2) is inserted into the rear side of the front shell (1). An encoder assembly (3) is provided inside the rear shell (2). The front side of the encoder assembly (3) penetrates the interior of the front shell (1). A reinforcing mechanism (4) is provided on the outside of the encoder assembly (3). A sealing mechanism (5) is provided on the inner side of the front shell (1) and the rear shell (2). A protective component (6) is provided on the right side of the rear shell (2). An anti-static component (7) is provided on the rear side of the rear shell (2). The reinforcement mechanism (4) includes a positioning component (401), a clamping component (402), a locking component (403), and an auxiliary rotating component (404). The positioning component (401) is located on the front side inside the front housing (1). The clamping component (402) is located inside the positioning component (401) and on the outer side of the front side of the encoder assembly (3). The locking component (403) is located on the outer side of the clamping component (402). The auxiliary rotating component (404) is located on the rear side inside the front housing (1) and on the outer side of the front side of the encoder assembly (3). The sealing mechanism (5) includes a close-connection component (501) and a sealing component (502). The close-connection component (501) is located on the inner side of the front housing (1) and the rear housing (2). The sealing component (502) is located on the outer side of the front side of the rear housing (2). The encoder assembly (3) includes an encoder body (301), an encoder rotating shaft (302), and a wire terminal (303). The encoder body (301) is located inside the rear housing (2). The encoder rotating shaft (302) is located on the front side of the encoder body (301). The front side of the encoder rotating shaft (302) passes through the front housing (1) and is located inside the positioning assembly (401). The inner side of the wire terminal (303) is electrically connected to the encoder body (301), and the outer side of the wire terminal (303) passes through the right side of the rear housing (2). The fixed point assembly (401) includes a fixed shell (4011) and a receiving sleeve (4012). The fixed shell (4011) is fixedly connected to the front side inside the front shell (1), and the receiving sleeve (4012) is fixedly connected to the inside of the fixed shell (4011). The inside of the receiving sleeve (4012) is located outside the wire terminal (303). The clamping assembly (402) includes a connecting sleeve (4021) and an elastic latch (4022). The rear side of the connecting sleeve (4021) is fixedly connected to the inside of the receiving sleeve (4012) and is located outside the wire terminal (303). The elastic latch (4022) is located on the front side of the connecting sleeve (4021) and is located outside the wire terminal (303). The locking assembly (403) includes a locking sleeve (4031), a triangular groove (4032), and a fixing screw (4033). The locking sleeve (4031) is fitted on the outside of the elastic latch (4022). The triangular groove (4032) is formed in the triangle on the front side of the locking sleeve (4031). The bottom of the fixing screw (4033) passes through the left and right triangular grooves (4032) at the top of the locking sleeve (4031) and is threaded to the bottom side inside the right triangular groove (4032). The auxiliary rotating assembly (404) includes a fixed sleeve (4041) and an inner pulley shaft (4042). The fixed sleeve (4041) is fixedly connected to the rear side inside the front housing (1) and located outside the encoder rotating shaft (302). The inner pulley shaft (4042) is fixedly connected to the inside of the fixed sleeve (4041) and rotatably connected to the outside of the encoder rotating shaft (302). The close-fitting assembly (501) includes a snap-fit ​​sleeve (5011), a screw hole (5012), and a sealing bolt (5013). The snap-fit ​​sleeve (5011) is welded to the front side of the rear shell (2), and the front side of the snap-fit ​​sleeve (5011) is snapped into the rear side of the front shell (1). The screw hole (5012) is opened around the outside of the snap-fit ​​sleeve (5011). The sealing bolt (5013) passes through the outside of the front shell (1) and is threaded into the screw hole (5012). The sealing assembly (502) includes a groove (5021) and a waterproof sealing gasket (5022). The groove (5021) is opened on the outer side of the front side of the housing. The waterproof sealing gasket (5022) is snapped into the inside of the groove (5021). The front side of the waterproof sealing gasket (5022) contacts the rear side of the front housing (1). The protective assembly (6) includes a threaded sleeve (601), a hollow nut (602), and a sealing sleeve (603). The threaded sleeve (601) is welded to the right side of the rear shell (2) and located outside the wire terminal (303). The hollow nut (602) is threaded to the outside of the threaded sleeve (601) and located outside the wire terminal (303). The sealing sleeve (603) is welded to the right side of the hollow nut (602) and located outside the wire terminal (303). The antistatic assembly (7) includes a sealing base (701), a sealing ring (702), and an antistatic plate (703). The front side of the sealing base (701) is bolted to the rear side of the rear shell (2). The sealing ring (702) is bonded to the front side of the sealing base (701) and the front side of the sealing ring (702) contacts the rear side of the rear shell (2). The antistatic plate (703) is fixedly connected inside the sealing base (701).

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