A self-locking movable control shaft device and a movable device

Abstract

The utility model discloses a self-locking movable control shaft device, comprising: a shaft; a rotating fixed component, which is sleeved on the shaft and fixedly arranged relative to the shaft, and the rotating fixed component is provided with an elastic deformation part; a self-locking component, which is sleeved on the rotating fixed component and movably arranged relative to the rotating fixed component; the rotating fixed component locks or releases the shaft under the cooperation of the movement of the self-locking component and the elastic deformation of the elastic deformation part. The problem that the shaft moves due to accidental contact or external environmental vibration during use, thereby affecting other components connected to the shaft, is avoided; the overall self-locking structure is simple, easy to operate, and can improve work efficiency. In addition, the shaft is also designed with a limit assembly to limit the movable position of the self-locking assembly, making the locking or releasing operation more convenient; a rotating guide assembly to achieve radial positioning of the shaft; a damping adjustment assembly, based on the axial movement of the shaft, provides variable damping for the rotation of the shaft, thereby improving the use experience of the product.

Description

Technical Field

[0001] The utility model belongs to the field of instrument control, and in particular relates to a self-locking mobile control shaft device and a mobile device. Background Art

[0002] As a mechanical part that rotates, the shaft is used in various mechanical equipment and industrial production. The function of the shaft is to connect other parts by rotation, so that the entire machine or equipment moves, thereby completing a specific work task. However, during the operation of the shaft, due to the rotatability of the shaft itself, there are influences such as accidental touch or environmental vibration, which causes the shaft to rotate, thereby affecting other parts connected to the shaft. Therefore, it is necessary to add a self-locking device to the shaft so that the shaft can be locked in any working state to avoid the problem of the shaft moving due to accidental touch or environmental vibration, which in turn affects other parts connected to the shaft. Summary of the invention

[0003] In order to solve the above problems in the prior art, the utility model provides a self-locking movable control shaft device and a movable device.

[0004] The purpose of the utility model can be achieved through the following technical solutions:

[0005] A self-locking movable control shaft device, comprising:

[0006] Rotating shaft;

[0007] A rotating and fixing component is sleeved on the rotating shaft and fixed relative to the rotating shaft, and the rotating and fixing component is provided with an elastic deformation portion;

[0008] A self-locking component is sleeved on the rotating and fixing component and is movably arranged relative to the rotating and fixing component;

[0009] The rotation fixing component locks or releases the rotating shaft under the cooperation of the active movement of the self-locking component and the elastic deformation of the elastic deformation part.

[0010] Preferably, the elastic deformation portion includes an oblique angle surface, and the oblique angle surface is in contact and fit with the self-locking component.

[0011] Preferably, the elastic deformation portion includes a deformation zone, and the deformation zone of the elastic deformation portion elastically deforms and cooperates when the self-locking component moves.

[0012] Preferably, the self-locking component is provided with an inclined surface, and the inclined surface is in contact and fit with the bevel surface of the elastic deformation portion.

[0013] Preferably, a limit assembly is included, and the limit assembly is used to limit the movable position of the self-locking assembly.

[0014] Preferably, the limiting assembly includes a blocking member for limiting the movable position of the self-locking assembly.

[0015] Preferably, it comprises a rotating guide member, which is arranged in the rotating fixing assembly and sleeved on the rotating shaft, and the rotating guide member is used for radial positioning of the rotating shaft.

[0016] Preferably, it comprises a damping adjustment component, which is arranged in the rotating fixing component and sleeved on the rotating shaft, and the damping adjustment component elastically deforms and cooperates based on the axial movement of the rotating shaft.

[0017] Preferably, the damping adjustment assembly includes an elastic member, and the elastic member of the damping adjustment assembly is elastically deformed and matched based on the axial movement of the rotating shaft.

[0018] A mobile device equipped with the self-locking mobile control rotating shaft device comprises a transmission component rotatably connected to the rotating shaft.

[0019] Beneficial effects of the utility model: the utility model designs a self-locking movable control shaft device, based on the cooperation between the self-locking component and the rotating fixed component, realizes the self-locking and release of the shaft in any working state; wherein the rotating fixed component is sleeved on the shaft and fixedly arranged relative to the shaft, and then the rotating fixed component is used as a reference object for the self-locking and release of the shaft, and the rotating shaft is locked or released relative to the rotating fixed component in combination with the self-locking component; in the self-locking state, the problem of the shaft moving due to accidental contact or external environmental vibration during use, thereby affecting other components connected to the shaft, is avoided;

[0020] In addition, during the self-locking and releasing process of the rotating shaft, based on the rotating fixing component being sleeved outside the rotating shaft, the inclined surface of the self-locking component cooperates with the bevel surface of the rotating fixing component. When the self-locking component moves, the elastic deformation of the elastic deformation part cooperates so that the bevel surface position simultaneously locks or releases the rotating shaft, and the design of the inclined surface facilitates the movement of the self-locking component relative to the rotating fixing component, making the locking process more labor-saving; combined with the deformation zone, the deformation point of the rotating fixing component during the self-locking and releasing process of the rotating shaft can be controlled, thereby achieving better locking and releasing effects; the overall self-locking structure is simple, easy to operate, and can improve work efficiency.

[0021] The limit assembly limits the active position of the self-locking assembly, so that the self-locking assembly can achieve the locking or releasing effect within a controllable distance during the locking and releasing process, making the locking or releasing operation more convenient;

[0022] The radial positioning of the rotating shaft is achieved by combining the rotating guide assembly with the rotating fixed assembly, thereby improving the stability of the rotating shaft movement; and the rotating guide assembly is made of copper, which further helps the rotating shaft to rotate smoothly;

[0023] Through the damping adjustment component, based on the axial movement of the shaft and combined with the elastic deformation of the elastic part, variable damping is provided for the rotation of the shaft, making the encoder movement smoother and improving the product's user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A schematic diagram of a self-locking movable control shaft device with a self-locking component in an embodiment

[0025] Figure 2 It is a structural schematic diagram of a self-locking movable control shaft device provided with a self-locking component and a limit component in the embodiment;

[0026] Figure 3 It is a schematic structural cross-sectional diagram of a self-locking movable control shaft device in an embodiment;

[0027] Figure 4 It is a schematic diagram of the structural cross-section of the self-locking component in the embodiment;

[0028] Figure 5 It is a structural schematic diagram of the rotating fixing assembly in the embodiment;

[0029] Figure 6 It is a structural schematic diagram of the combination of the limit assembly and the self-locking assembly in the embodiment;

[0030] Figure 7 is a schematic structural diagram of a damping adjustment component in an embodiment;

[0031] Figure 8 It is a schematic diagram of the structure for adjusting the rotation damping of the rotating shaft by means of a fastener in the embodiment;

[0032] Fig. 9 A schematic diagram of an application of a self-locking movable control shaft device in an embodiment;

[0033] Fig.10 It is a structural schematic diagram of a moving device equipped with a self-locking moving control shaft device;

[0034] Fig.11 Schematic diagram of the structure of the tensioning assembly in two viewing angles in the embodiment;

[0035] In the figure: 1-rotating shaft, 2-rotating fixed component, 21-bevel surface, 22-deformation zone, 23-notch, 3-self-locking component, 31-inclined surface, 4-limiting component, 41-limiting fixed ring, 42-blocking member, 5-rotating guide member, 6-damping adjustment component, 61-elastic member, 62-gasket, 7-transmission component, 71-gear, 72-rack, 73-synchronous wheel, 74-synchronous belt, 8-tensioning component, 81-synchronous idler wheel, 82-tensioning shaft, 83-adjusting block, 831-limiting column, 84-tensioning seat, 841-limiting groove, 85-tensioning adjustment member, 9-knob, 10-fastener. DETAILED DESCRIPTION

[0036] The following will be combined with the embodiment of the present utility model Figure 1-Figure 10 The accompanying drawings clearly and completely describe the technical solutions in the embodiments of the present invention. Example

[0037] like Figure 1 As shown, a self-locking movable control shaft device comprises: a shaft 1; a rotation fixing component 2, which is sleeved on the shaft 1 and fixed relative to the shaft 1, and the rotation fixing component 2 is provided with an elastic deformation part; a self-locking component 3, which is sleeved on the rotation fixing component 2 and movably connected with the rotation fixing component 2; the rotation fixing component 2 holds or releases the shaft 1 under the cooperation of the movable movement of the self-locking component 3 and the elastic deformation of the elastic deformation part.

[0038] Specifically, the rotating fixed component 2 is a rotating fixed shaft with through holes passing through both ends, and the rotating fixed shaft is sleeved on the outside of the rotating shaft 1 through the through holes; in this embodiment, the rotating fixed shaft is a fixing device, which can fix the rotating fixed shaft on a machine or equipment, thereby making the rotating fixed component 2 fixed and stationary as a reference object for self-locking and releasing of the rotating shaft 1.

[0039] Further, such as Figure 3-5 As shown, in the rotating fixed component 2, the elastic deformation part includes an angled surface 21, and the angled surface 21 is in contact and fit with the self-locking component 3; the angled surface 21 is in contact and fit with the self-locking component 3 in the direction opposite to the rotating shaft 1. In addition, the elastic deformation part includes a deformation zone 22, and the deformation zone 22 of the elastic deformation part is elastically deformed when the self-locking component 3 moves. Specifically, in this embodiment, an elastic deformation part is provided at one end of the rotating fixed component 2, and the elastic deformation part is provided with an angled surface 21 and a deformation zone 22 in sequence from one end of the elastic deformation part to the other end. The deformation zone 22 is a preset groove, and the thickness of the corresponding position of the deformation zone 22 in the rotating fixed component 2 is the position with the smallest thickness in the rotating fixed component 2, which facilitates the elastic deformation of the deformation zone 22 during the locking or releasing process, so that the deformation position of the rotating fixed component 2 during the self-locking and releasing process of the rotating shaft 1 can be controlled, thereby achieving a better locking and releasing effect.

[0040] Preferably, the self-locking component 3 is provided with an inclined surface 31, and the inclined surface 31 is in contact with and fits with the bevel surface 21 of the elastic deformation part. In addition, in order to facilitate the elastic deformation part and the self-locking component 3 to move and deform in coordination during the locking or release process of the rotating shaft 1, the elastic deformation part is provided with a preset number of notches 23 based on the axial direction of the rotating fixed shaft to facilitate the deformation of the elastic deformation part during the locking or release process. In addition, the self-locking component 3 described in this embodiment is a self-locking ring sleeved on the outside of the rotating fixed component 2; in this embodiment, the self-locking ring and the rotating fixed component 2 are threadedly engaged, so that the self-locking component 3 can move on the rotating fixed component 2 relative to the rotating fixed component 2 based on the threaded engagement.

[0041] In this embodiment, the inclined surface 31 and the bevel surface 21 are in contact and fit with each other, so that during the self-locking and releasing process, the entire inclined surface 31 and the bevel surface 21 are simultaneously fit and evenly stressed, thereby improving the stability of self-locking and releasing. Furthermore, the self-locking component 3 is provided with a groove at the position facing the rotating fixing component 2, and the groove on the self-locking component 3 corresponds to the deformation zone 22, which is used to avoid deformation of the deformation zone 22.

[0042] Specifically, the rotation fixing component 2 holds or releases the rotating shaft 1 under the cooperation of the active movement of the self-locking component 3 and the elastic deformation of the elastic deformation part, and the process is as follows:

[0043] The initial state is when the rotating shaft 1 is released, and the inclined surface 31 and the bevel surface 21 are in contact and fit with each other based on the initial position. At this time, the position of the rotating fixing component 2 corresponding to the bevel surface 21 is not in contact with the rotating shaft 1; based on the threaded cooperation between the self-locking component 3 and the rotating fixing component 2, the rotating self-locking component 3 causes the inclined surface 31 to move toward the position where the thickness of the bevel surface 21 gradually thickens, that is, to the position at the top of the bevel surface 21; when the inclined surface 31 moves, the bevel surface 21 is squeezed by the inclined surface 31, and the deformation area 22 is deformed under the action of the squeezing force, and the position of the rotating fixing component 2 corresponding to the bevel surface 21 moves toward the inner rotating shaft 1 until it contacts the rotating shaft. 1, so that the rotating shaft 1 is locked relative to the rotating fixing component 2. At this time, the rotating shaft 1 is fixed and cannot rotate; then the self-locking component 3 rotates in the direction opposite to the locking direction, and the inclined surface 31 moves to the position where the thickness of the bevel surface 21 becomes thinner, that is, moves to the lower position of the bevel surface 21; under the movement of the inclined surface 31, the extrusion force exerted on the bevel surface 21 by the inclined surface 31 becomes smaller, and the deformation area 22 rebounds based on the resilient material, so that the position of the rotating self-locking component 3 corresponding to the bevel surface 21 moves outward away from the rotating shaft 1 until it moves to a point where it does not contact the rotating shaft 1, so that the rotating shaft 1 is released relative to the rotating fixing component 2, and the rotating shaft 1 can rotate arbitrarily.

[0044] In this embodiment, the shaft 1 is fixedly connected to the knob 9, and the process of self-locking and releasing of the shaft 1 can be the self-locking and releasing of the shaft 1 relative to the rotating fixed component 2 by the self-locking component 3; based on the fixed connection between the shaft 1 and the knob 9, the self-locking and releasing of the shaft 1 relative to the rotating fixed component 2 by the self-locking component 3 can also be the self-locking and releasing of the knob 9 shaft 1 relative to the rotating fixed component 2, which is equivalent to the self-locking and releasing of the shaft 1 relative to the rotating fixed component 2.

[0045] Furthermore, during the self-locking and releasing process of the rotating shaft 1, if the self-locking component 3 rotates too many times, the self-locking and releasing process will be complicated, or there will be problems such as excessive release. Therefore, a self-locking movable control rotating shaft device includes a limit component 4, which is used to limit the movable position of the self-locking component 3. Figure 2 As shown, as shown, preferably, the limiting assembly 4 includes a blocking member 42, based on which the blocking member 42 blocks and limits the movable moving position of the self-locking assembly 3.

[0046] Specifically, the blocking member 42 is a part that can block the rotational movement of the self-locking component 3, and can be, but not limited to, a protrusion, a screw or a columnar member as the blocking member 42; in the process of limiting the movement position of the self-locking component 3 based on the component blocking in the limiting component 4, the blocking member 42 can cooperate with the blocking matching groove, and the length of the blocking matching groove limits the position path interval of the rotational movement of the self-locking component 3; it is also possible to block and limit the rotation of the self-locking component 3 based on multiple blocking members 42 contacting and resisting each other during the rotational movement of the self-locking component 3.

[0047] In this embodiment, Figure 6 As shown, based on the two blocking members 42 contacting and resisting each other during the rotation and movement of the self-locking component 3, the self-locking component 3 is restricted from rotating. The position-limiting component 4 includes a position-limiting fixed ring 41 fixedly sleeved on the rotation and fixed shaft, and a blocking member 42 fixedly mounted on the position-limiting fixed ring 41. In addition, the self-locking component 3 is fixedly mounted with another blocking member 42. In this embodiment, the blocking member 42 is a screw. The position-limiting fixed ring 41 and the blocking member 42 on the self-locking component 3 are relatively arranged between the position-limiting fixed ring 41 and the self-locking component 3. In this embodiment, since the rotation and fixed component 2 is made of metal, the rotation and movement distance of the self-locking component 3 during the locking process of the rotating shaft 1 is limited, and the self-locking component 3 can rotate multiple times under the threaded cooperation between the self-locking component 3 and the rotation and fixed component 2 during the release process of the rotating shaft 1. In this embodiment, a blocking member 42 is fixedly mounted on the position-limiting fixed ring 41 and the self-locking component 3 respectively. In this embodiment, based on the contact and resistance of the two blocking members 42 during the release process of the rotating shaft 1, the self-locking component 3 is restricted from continuing to rotate, and excessive release is prevented, so that the self-locking component 3 is separated from the rotation and fixed component 2. In this embodiment, the process of limiting the active position of the self-locking component 3 by the limiting component 4 is as follows:

[0048] In the initial state, when the rotating shaft 1 is released, the blocking member 42 on the self-locking component 3 conflicts with the blocking member 42 on the limiting fixing ring 41, so that the self-locking component 3 cannot continue to rotate in the release direction of the rotating shaft 1; the self-locking component 3 rotates in the locking direction until it stops rotating, so that the self-locking component 3 cannot continue to rotate in the self-locking direction of the rotating shaft 1.

[0049] Furthermore, in order to facilitate the operation of the self-locking or releasing process, based on the threaded active connection between the self-locking component 3 and the rotating fixed component 2, the inclined angle between the inclined surface 31 and the bevel surface 21 is constructed according to the lead of the thread, and the distance between the rotating fixed axis position corresponding to the bevel surface 21 and the rotating shaft 1 when the rotating shaft 1 is released in the initial state, and then the position of the blocking member 42 is set so that the released rotating position range of the self-locking component 3 is within the preset position range. The active limit range of the self-locking component 3 can also be set based on demand.

[0050] In addition, based on needs, the rotational movable position of the self-locking component 3 can be restricted respectively for the locking and releasing of the rotating shaft 1, which can be achieved by the blocking member 42 cooperating with the blocking matching groove; or by setting corresponding blocking members 42 for the locking and releasing of the rotating shaft 1, such as two blocking members 42 are provided on the side of the limiting fixing ring 41 in the self-locking component 3 facing the self-locking component 3, which respectively block and restrict the movable moving position of the self-locking component 3 under the locking of the rotating shaft 1, and the movable moving position of the self-locking component 3 under the releasing of the rotating shaft 1; a blocking member 42 is provided on the side of the self-locking component 3 facing the limiting fixing ring 41, which cooperates with the blocking member 42 on the limiting fixing ring 41, and then the movable position range of the self-locking component 3 during the locking process of the rotating shaft 1 and the movable position range of the self-locking component 3 during the releasing process of the rotating shaft 1 are limited based on the contact and interference cooperation between the blocking members 42.

[0051] In addition, Figure 3 As shown, in order to stabilize the movement process of the rotating shaft 1 and improve the stability of the rotating shaft 1, a self-locking movable control rotating shaft device includes a rotating guide member 5, which is arranged in a rotating fixing component 2 and sleeved on the rotating shaft 1, and the rotating guide member 5 is used for radial positioning of the rotating shaft 1.

[0052] Furthermore, the rotating guide 5 may be a guide bearing, so that the rotating shaft 1 can be aligned during radial rotation and the friction of the rotating shaft 1 can be minimized. In this embodiment, the rotating guide 5 is made of copper and has a sleeve with through holes at both ends, and is sleeved on the rotating shaft 1 through the through holes to slide and contact with the rotating shaft 1, and the position is limited by the groove provided in the through hole of the rotating fixing component 2 and limited by the rotating guide 5. Specifically, the number and position of the sleeves included in the rotating guide 5 can be set based on the length of the rotating shaft 1 and design requirements.

[0053] In addition, in order to increase the feel of the knob 9, the shaft 1 rotates more smoothly, the encoder moves more smoothly, and the user experience of the product is improved; a self-locking mobile control shaft device includes a damping adjustment component 6, which is arranged in the rotation fixing component 2 and sleeved on the shaft 1, and the damping adjustment component 6 elastically deforms and cooperates based on the axial movement of the shaft 1. Specifically, the damping adjustment component 6 includes an elastic member 61, and the elastic member 61 of the damping adjustment component 6 elastically deforms and cooperates based on the axial movement of the shaft 1. Then, based on the axial movement of the shaft 1, the elastic member 61 provides corresponding damping for the rotation of the shaft 1 under different deformations.

[0054] Specifically, Figure 7 As shown, in this embodiment, the damping adjustment component 6 includes an elastic member 61 and gaskets 62 arranged on both sides of the elastic member 61. The elastic member 61 and the gasket 62 are both sleeved on the rotating shaft 1 and arranged between the rotating guide member 5 in the through hole of the rotating fixing component 2 and the stepped structure portion provided on the rotating shaft 1. Based on the fixing of the rotating guide member 5, when the relative position distance between the stepped structure portion of the rotating shaft 1 and the rotating guide member S decreases under the axial movement of the rotating shaft 1, the elastic member 61 is compressed, so that the rotation damping of the rotating shaft 1 becomes larger; when the relative distance between the stepped structure portion of the rotating shaft 1 and the rotating guide member 5 increases under the axial movement of the rotating shaft 1, the elastic member 61 is released, so that the rotation damping of the rotating shaft 1 becomes smaller. In this embodiment, the gasket 62 is made of wear-resistant material to reduce the wear of the device during the deformation of the elastic member 61 and improve the service life. The gasket 62 is made of polytetrachloroethylene gasket; the elastic member 61 can be a corrugated gasket 62, a carbon spring or other elastic member 61. Moreover, in this embodiment, the axial movement of the rotating shaft 1 can be achieved by rotating the fastener 10 which is threadedly matched with the rotating shaft 1, and the fastener 10 is rotated based on the threaded match, so that the rotating shaft 1 moves axially relative to the fastener 10, and then the rotating shaft 1 moves axially relative to the rotating fixing component 2, such as Figure 8 The fastener 10 is threadedly matched with the shaft 1 through a washer disposed at the end of the rotating fixed component 2, and when the fastener thread rotates, the shaft 1 moves axially relative to the fastener 10, that is, the shaft 1 moves axially relative to the rotating fixed component 2. The fastener 10 can be a screw. Example

[0055] Based on the self-locking movable control shaft device constructed in the first embodiment, this embodiment applies it to the lifting control device of the microscope measurement platform, such as Fig. 9 Specifically, a moving device in a microscope measuring platform is provided with the above-mentioned self-locking moving control shaft device, and the moving device also includes a transmission assembly 7 rotatably connected to the shaft 1 .

[0056] The transmission assembly 7 can adopt a transmission assembly 7 composed of a synchronous wheel 73 and a synchronous belt 74. Specifically, the transmission assembly 7 includes two synchronous wheels 73 and a synchronous belt 74 mounted on the two synchronous wheels 73. The rotating shaft 1 is rotationally connected to one of the synchronous wheels 73. The rotation of the rotating shaft 1 drives the connected synchronous wheel 73 to rotate, and then the other synchronous wheel 73 rotates synchronously based on the synchronous belt 74.

[0057] In addition, the transmission assembly 7 can also adopt a transmission assembly 7 composed of a gear 71 and a rack 72, and the gear 71 is connected by rotating the shaft 1, and the rotation of the shaft 1 drives the gear 71 to rotate, and then based on the mutual engagement of the gear 71 and the rack 72, the rotation of the gear 71 drives the rack 72 to move relative to the gear 71.

[0058] In this embodiment, in order to control the lifting of the microscope measurement platform, the transmission assembly 7 composed of the synchronous wheel 73 and the synchronous belt 74 can cooperate with the transmission assembly 7 composed of the gear 71 and the rack 72 to jointly realize the lifting control of the microscope measurement platform; Fig.10 As shown, specifically, a rotating shaft 1 in a self-locking movable control rotating shaft device is rotationally connected with a synchronous wheel 73, and another synchronous wheel 73 is rotationally connected with a gear 71 through a transmission shaft, and then the rotating shaft 1 rotates to drive the connected synchronous wheel 73 to rotate, and the other synchronous wheel 73 rotates synchronously based on the synchronous belt 74, and the synchronous wheel 73 rotates to drive the transmission shaft to rotate, and then drives the gear 71 to rotate, and based on the mutual meshing of the gear 71 and the rack 72, the gear 71 rotates to drive the rack 72 to move relative to the gear 71; the rack 72 is equivalent to the gear 71 moving to drive the microscope measurement platform to move up and down, and then the microscope measurement platform moves up and down based on the rotating shaft 1. The problem that the rotating shaft 1 device cannot directly cooperate with the gear 71 is solved, and then through the cooperation of the transmission component 7, the rotating shaft 1 can control the rotation of the gear 71.

[0059] Further, based on the transmission assembly 7 composed of the synchronous wheel 73 and the synchronous belt 74 in the transmission assembly 7, a tensioning assembly 8 can be provided to control the tensioning of the synchronous belt 74 in the transmission assembly 7. Fig.11 As shown, the tensioning assembly 8 includes a synchronous idler wheel 81 arranged between the two synchronous wheels 73 and in contact with the synchronous belt 74 inside the synchronous belt 74; a tensioning shaft 82, which is rotatably connected to the synchronous idler wheel 81; an adjustment block 83, which is fixedly connected to the tensioning shaft 82, and a limit column 831 is fixedly provided on the adjustment block 83; a tensioning seat, which is provided with a slot that cooperates with the limit column 831; and a tensioning adjustment member 85, which is movably arranged relative to the tensioning seat and contacts the adjustment block 83 based on the movable movement with the tensioning seat.

[0060] In this embodiment, the tension adjustment member 85 is screwed and threadedly matched with the tension seat, so that the tension adjustment member 85 is movably arranged relative to the tension seat; the limit column 831 is screwed and threadedly fixedly connected with the adjustment block 83. Based on the normal placement of the device of this solution, the tension adjustment member 85 is in contact with the adjustment block 83 under the adjustment block 83 and in threaded match with the tension seat, so that the position of the synchronous idler wheel 81 can be controlled by the adjustment block 83, thereby controlling the tension of the synchronous belt 74 in the transmission assembly 7.

[0061] The working process of the tensioning assembly 8 is as follows: the tensioning seat is fixed on the instrument or equipment so that the position of the tensioning seat is fixed; the tensioning adjustment member 85 contacts the adjustment block 83 based on the movable movement of the tensioning seat, and the tensioning adjustment member 85 provides support for the adjustment block 83 below the adjustment block 83. Based on the upward movement of the tensioning adjustment member 85 and the tensioning seat thread, the tensioning adjustment member 85 supports the adjustment block 83 to move upward, thereby driving the limit column 831 provided on the adjustment block 83 to move in the slot on the tensioning seat, and driving the tensioning shaft 82 and the synchronous idler The wheel 81 moves upward synchronously, so that the tensioning force of the synchronous belt 74 becomes smaller; the tensioning adjustment piece 85 moves downward in cooperation with the tensioning seat thread, and the adjustment block 83 moves downward based on gravity, thereby driving the limit column 831 provided on the adjustment block 83 to move in the slot on the tensioning seat, and driving the tensioning shaft 82 and the synchronous idler wheel 81 to move downward synchronously, so that the tensioning force of the synchronous belt 74 becomes larger; the slot length setting limits the upper and lower limit positions of the movement of the adjustment block 83, and the position of the synchronous idler wheel 81 can be adjusted by the tensioning adjustment piece 85 based on the tensioning force requirement.

[0062] The utility model discloses a self-locking movable control shaft device, comprising: a shaft 1; a rotating fixed component 2, which is sleeved on the shaft 1 and fixed relative to the shaft 1, and the rotating fixed component 2 is provided with an elastic deformation part; a self-locking component 3, which is sleeved on the rotating fixed component 2 and movably connected with the rotating fixed component 2; the rotating fixed component 2 locks or releases the shaft 1 under the cooperation of the movable movement of the self-locking component 3 and the elastic deformation of the elastic deformation part. The problem that the shaft 1 moves due to accidental contact or external environmental vibration during use, thereby affecting other components connected to the shaft 1, is avoided; the overall self-locking structure is simple, easy to operate, and can improve work efficiency. In addition, the shaft 1 is also designed with a limiting component 4, which limits the movable position of the self-locking component 3, making the locking or releasing operation more convenient; a rotating guide component, which realizes the radial positioning of the shaft 1; a damping adjustment component 6, based on the axial movement of the shaft 1, provides variable damping for the rotation of the shaft 1, thereby improving the use experience of the product.

[0063] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0064] The above are only preferred embodiments of the utility model, but do not limit the patent scope of the utility model. Although the utility model is described in detail with reference to the above embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the above specific implementations, or replace some of the technical features with equivalents. Any equivalent structure made by using the contents of the utility model specification and drawings, directly or indirectly used in other related technical fields, is also within the scope of protection of the utility model patent.

Claims

1. A self-locking movable control shaft device, characterized in that: include: Rotating shaft (1); A rotating fixed component (2) is sleeved on the rotating shaft (1) and fixedly arranged relative to the rotating shaft (1), and the rotating fixed component (2) is provided with an elastic deformation portion; A self-locking component (3) is sleeved on the rotating and fixing component (2) and is movably arranged relative to the rotating and fixing component (2); The rotation fixing component (2) locks or releases the rotating shaft (1) under the cooperation of the active movement of the self-locking component (3) and the elastic deformation of the elastic deformation part.

2. A self-locking movable control shaft device according to claim 1, characterized in that: The elastic deformation portion comprises an oblique angle surface (21), and the oblique angle surface (21) is in contact and fit with the self-locking component (3).

3. A self-locking movable control shaft device according to claim 1, characterized in that: The elastic deformation portion comprises a deformation zone (22), and the deformation zone (22) of the elastic deformation portion elastically deforms and cooperates when the self-locking component (3) moves.

4. A self-locking movable control shaft device according to claim 2, characterized in that: The self-locking component (3) is provided with an inclined surface (31), and the inclined surface (31) is in contact and fit with the bevel surface (21) of the elastic deformation portion.

5. The self-locking movable control shaft device according to claim 1, characterized in that: It comprises a limit assembly (4), and the limit assembly (4) is used to limit the movable position of the self-locking assembly (3).

6. A self-locking movable control shaft device according to claim 5, characterized in that: The limiting component (4) comprises a blocking member (42) for limiting the movable position of the self-locking component (3).

7. A self-locking movable control shaft device according to claim 1, characterized in that: It comprises a rotating guide member (5) which is arranged in a rotating fixing assembly (2) and sleeved on a rotating shaft (1); the rotating guide member (5) is used for radially positioning the rotating shaft (1).

8. The self-locking movable control shaft device according to claim 1, characterized in that: It comprises a damping adjustment component (6), which is arranged in the rotating fixing component (2) and sleeved on the rotating shaft (1), and the damping adjustment component (6) elastically deforms and cooperates based on the axial movement of the rotating shaft (1).

9. A self-locking movable control shaft device according to claim 8, characterized in that: The damping adjustment component (6) comprises an elastic member (61), and the elastic member (61) of the damping adjustment component (6) is elastically deformed and matched based on the axial movement of the rotating shaft (1).

10. A mobile device, characterized in that: The mobile device is equipped with the self-locking mobile control shaft device according to claim 1, and also includes a transmission component (7) rotatably connected to the shaft (1).

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