Knob structure capable of being quickly assembled and disassembled and encoder box applying knob structure
By designing an extension wall and shaft protrusion insertion structure on the knob body, combined with a waterproof sealing ring, the problems of play and wobbling in the knob and shaft in existing encoders are solved, realizing the waterproof and user-friendly design of the quick-release knob, and improving the ease of installation and disassembly.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-03
- Publication Date
- 2026-03-24
AI Technical Summary
Existing push-to-press encoders have play between the knob and the shaft, causing wobbling and swinging during rotation, which affects the user experience.
A quick-release knob structure was designed. An extension wall and a shaft protrusion were provided on the knob body. The insertion hole and the knob insert in the insertion cavity have abutting posts. The abutting posts are inserted and connected to the encoder shaft to prevent misalignment and wobbling. A waterproof sealing ring is fitted on the extension wall for waterproofing and sealing.
It effectively prevents misalignment and wobbling between the encoder shaft and the insertion hole, improving the ease of installation and disassembly and the comfort of use. It also has a waterproof function, reduces friction, and facilitates the insertion and removal of the knob.
Smart Images

Figure CN224034681U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a knob technical field, concretely relates to a quick mounting and dismounting type knob structure and encoder box applying the knob structure. BACKGROUND
[0002] The press encoder is a kind of electronic element combining rotary encoder and button function, mainly used to detect rotary motion and press operation, and is widely used in occasions needing multifunctional control.The press encoder structure on the market currently has certain virtual position between knob and rotating shaft, and rotating shaft will appear the phenomenon of shaking when rotating, and the phenomenon of shaking is more prominent when shaking is transmitted to the top of knob, and user will appear obvious swing when using rotating knob, which affects use experience. CONTENT OF UTILITY MODEL
[0003] The utility model solves the technical problems of overcoming the deficiencies of prior art, and provides a quick mounting and dismounting type knob structure and encoder box applying the knob structure, which has novel structure design, is convenient to mount and dismount, can prevent swing, and has good use comfort.
[0004] To solve the above technical problems, the utility model adopts the following technical scheme:
[0005] A quick mounting and dismounting type knob structure, comprising a knob main body, an extension wall is formed on the knob main body in the axial direction, a shaft protrusion is formed in the axial direction in the extension wall, a plug-in hole position and a plug-in cavity are arranged in the shaft protrusion, the plug-in cavity and the plug-in hole position are in overlapping communication, a knob plug-in piece is arranged in the plug-in cavity, the knob plug-in piece comprises a flat plate part, a plurality of abutting columns are formed on the flat plate part, and the abutting columns are arranged towards the plug-in hole position.
[0006] As a further improvement of the above technical scheme:
[0007] A plurality of annular grooves are arranged on the outer wall of the extension wall, and a waterproof sealing ring is sleeved in the annular grooves.
[0008] A knob outer sleeve is sleeved on the side of the knob main body away from the extension wall.
[0009] An encoder box, comprising a shell and a circuit board arranged in the shell, a through hole is formed in the shell, an encoder is arranged on the circuit board, the encoder has an encoder rotating shaft, the knob main body is arranged in the through hole, and the plug-in hole position is connected with the encoder rotating shaft in plug-in mode.
[0010] The encoder rotating shaft is a D-shaped shaft, the plug-in hole position is a D-shaped hole, and the abutting columns of the knob plug-in piece are in abutting contact with the flat surface of the encoder rotating shaft.
[0011] The waterproof sealing ring is in abutment with the inner wall of the through hole.
[0012] Compared with the prior art, the utility model has the advantages that:
[0013] One, the quick mounting and dismounting type knob structure includes a knob main body, an extension wall for rotationally cooperating with an encoder box hole position is formed on the knob main body, and a shaft protruding portion for plug-in connection with an encoder rotating shaft is arranged on the knob main body, a plug-in hole position for accommodating the encoder rotating shaft and a plug-in cavity for accommodating a knob insert piece are arranged in the shaft protruding portion, the knob insert piece has an abutment column arranged towards the plug-in hole position, the abutment column can abut and press the encoder rotating shaft in the plug-in hole position, so that the encoder rotating shaft and the plug-in hole position are tightly fitted and the phenomenon of swinging of the knob main body during rotation of the knob main body by a user is effectively prevented, and the quick mounting and dismounting type knob structure has the advantages of novel structure design, convenient mounting and dismounting and good use comfort.
[0014] Two, the encoder box includes a shell, a circuit board and a knob main body, the shell is provided with a through hole, the circuit board is provided with an encoder, during installation, the knob main body is plugged into the through hole, and the plug-in hole position on the knob main body 1 is plug-in connected with the encoder rotating shaft, at this time, the abutment column on the knob insert piece abuts against the encoder rotating shaft, plays a role of abutting and pressing, makes the encoder rotating shaft and the plug-in hole position tightly fitted, avoids the occurrence of virtual position, effectively prevents the occurrence of swinging, the contact area between the abutment column and the encoder rotating shaft is small, the friction is small, and the knob main body can be conveniently and quickly pulled out. BRIEF DESCRIPTION OF DRAWINGS
[0015] Figure 1 It is a structure schematic view of the quick mounting and dismounting type knob structure.
[0016] Figure 2 It is a split schematic view of the quick mounting and dismounting type knob structure.
[0017] Figure 3 It is a structure schematic view of the shaft protruding portion and the knob insert piece.
[0018] Figure 4 It is a sectional view of the quick mounting and dismounting type knob structure.
[0019] Figure 5 It is a split schematic view of the encoder box.
[0020] Figure 6 It is a sectional view of the encoder box.
[0021] Figure 7 It is Figure 6 It is an enlarged view of detail A.
[0022] LEGEND:
[0023] 1, knob body; 101, extension wall; 102, shaft protrusion; 103, plug hole; 104, plug cavity; 105, annular groove; 2, knob plug; 201, flat plate; 202, abutting column; 3, waterproof sealing ring; 4, knob cover; 5, encoder; 501, encoder shaft; 100, shell; 200, circuit board; 300, through hole. DETAILED DESCRIPTION
[0024] The utility model will be further explained in detail below in combination with the drawings and specific embodiments.
[0025] As Figures 1 to 4 shown, the quick-mounting and dismounting knob structure of the embodiment comprises a knob body 1, the knob body 1 is formed with an extension wall 101 in the axial direction, the extension wall 101 is formed with a shaft protrusion 102 in the axial direction, the shaft protrusion 102 is provided with a plug hole 103 and a plug cavity 104, the plug cavity 104 is in communication with the plug hole 103, the plug cavity 104 is provided with a knob plug 2, the knob plug 2 comprises a flat plate 201, the flat plate 201 is formed with a plurality of abutting columns 202, and the abutting columns 202 are arranged towards the plug hole 103. The quick-mounting and dismounting knob structure comprises the knob body 1, the knob body 1 is formed with the extension wall 101 for rotationally cooperating with the encoder box hole and the shaft protrusion 102 for plug-in connection with the encoder shaft 501, the shaft protrusion 102 is provided with the plug hole 103 for accommodating the encoder shaft 501 and the plug cavity 104 for accommodating the knob plug 2, the knob plug 2 is provided with the abutting columns 202 arranged towards the plug hole 103, so that the abutting columns 202 can abut and press the encoder shaft 501 in the plug hole 103, avoid the occurrence of virtual position between the encoder shaft 501 and the plug hole 103, effectively prevent the phenomenon of swinging when the user rotates the knob body 1, and have the advantages of novel structure design, convenient mounting and dismounting and good use comfort.
[0026] Preferably, the outer wall of the extension wall 101 is provided with a plurality of annular grooves 105, and the annular grooves 105 are sleeved with waterproof sealing rings 3. In the embodiment, the extension wall 101 is provided with two annular grooves 105, and the two waterproof sealing rings 3 are respectively sleeved in the annular grooves 105. When the knob body 1 of the utility model is plugged into the encoder box hole, the waterproof sealing rings 3 can abut and contact the inner wall of the hole, play a sealing and waterproof effect, prevent external water from entering the inside of the encoder box, and reduce the risk of electrical element leakage.
[0027] Preferably, the knob body 1 is sleeved with a knob cover 4 on the side away from the extension wall 101, which not only has the functions of beauty and functional identification, but also can improve the operation feeling and protect the knob.
[0028] AsFigures 5 to 7 As shown, the encoder box of the embodiment comprises a shell 100 and a circuit board 200 arranged in the shell 100, the shell 100 is provided with a through hole 300, the encoder 5 is arranged on the circuit board 200, the encoder 5 has an encoder shaft 501, the knob main body 1 is inserted into the through hole 300, and the insertion hole position 103 is connected with the encoder shaft 501. The encoder box comprises the shell 100, the circuit board 200 and the knob main body 1, the shell 100 is provided with the through hole 300, the circuit board 200 is provided with the encoder 5, the knob main body 1 is inserted into the through hole 300 during installation, and the insertion hole position 103 on the knob main body 1 is connected with the encoder shaft 501, at this time, the abutting column 202 on the knob insert piece 2 is in abutment with the encoder shaft 501, plays a role of abutting and pressing, makes the encoder shaft 501 and the insertion hole position 103 closely adhere to each other, avoids the occurrence of a virtual position, can effectively prevent the occurrence of swing, and the contact area between the abutting column 202 and the encoder shaft 501 is small, the friction is small, and the knob main body 1 can be conveniently and quickly pulled out.
[0029] Preferably, the encoder shaft 501 is a D-shaped shaft, the insertion hole position 103 is a D-shaped hole, and the abutting column 202 of the knob insert piece 2 is in abutment with the plane of the encoder shaft 501. In the embodiment, the encoder shaft 501 is a D-shaped shaft structure having a plane and a circular arc surface, and the insertion hole position 103 is a D-shaped hole structure having a straight edge and a circular arc edge.
[0030] Preferably, the waterproof sealing ring 3 is in abutment with the inner wall of the through hole 300. In the embodiment, the waterproof sealing ring 3 is in linear contact with the inner wall of the through hole 300, not only the contact area between the knob main body 1 and the inner wall of the through hole 300 is small, the friction is small, the knob main body 1 can be conveniently rotated in the through hole 300, but also the waterproof sealing ring 3 can play a centering and limiting effect on the knob main body 1, prevents the knob main body 1 from swinging in the through hole 300, and the waterproof sealing ring 3 can also prevent external water from entering the shell 100, which is beneficial to prolong the service life.
[0031] The above only describes the preferred embodiments of the present application, and the protection scope of the present application is not limited to the above. For those skilled in the art, the improvements and changes obtained without departing from the technical concept of the present application should also be considered as the protection scope of the present application.
Claims
1. A quick-release knob structure, characterized in that, The device includes a knob body (1), on which an extension wall (101) is formed along the axial direction. An axial protrusion (102) is formed inside the extension wall (101) along the axial direction. The axial protrusion (102) is provided with a plug hole (103) and a plug cavity (104). The plug cavity (104) overlaps and communicates with the plug hole (103). A knob insert (2) is provided inside the plug cavity (104). The knob insert (2) includes a flat plate (201). Multiple sets of abutment posts (202) are formed on the flat plate (201). The abutment posts (202) are arranged facing the plug hole (103).
2. The quick-release knob structure according to claim 1, characterized in that, The outer wall of the extension wall (101) is provided with several sets of annular grooves (105), and a waterproof sealing ring (3) is fitted inside the annular grooves (105).
3. The quick-release knob structure according to claim 2, characterized in that, A knob cover (4) is fitted on the side of the knob body (1) away from the extension wall (101).
4. An encoder box, characterized in that, The device includes a housing (100) and a circuit board (200) disposed within the housing (100). The housing (100) has a through hole (300). An encoder (5) is disposed on the circuit board (200). The encoder (5) has an encoder shaft (501). The knob body (1) of any one of claims 1 to 3 passes through the through hole (300). The insertion hole (103) is inserted into the encoder shaft (501).
5. The encoder box according to claim 4, characterized in that, The encoder shaft (501) is a D-shaped shaft, the insertion hole (103) is a D-shaped hole, and the abutment post (202) of the knob insert (2) is in contact with the plane of the encoder shaft (501).
6. The encoder box according to claim 5, characterized in that, The waterproof sealing ring (3) abuts against the inner wall of the through hole (300).