A telescope vision focusing structure

Abstract

The invention discloses a telescope vision focusing structure, comprising an eyepiece seat which is fixedly arranged, a movable eyecup which is axially movable relative to the eyepiece seat is coaxially arranged on the outer side of the eyepiece seat, and an eyepiece frame which is axially movable relative to the eyepiece seat is coaxially arranged on the inner side of the eyepiece seat; an avoidance ring groove which limits the axial movement of the movable eyecup is arranged between the eyepiece seat and the movable eyecup, and a movable clamping part which is connected or separated with the axial movement of the movable eyecup is arranged between the movable eyecup and the eyepiece frame; the invention has the advantages of making the focusing structure simpler and more compact without arranging a hand wheel and a connecting structure therewith, realizing convenient and fast focusing, and effectively avoiding focusing error operation caused by touching.

Description

Technical Field

[0001] The invention belongs to the technical field of focus adjustment devices, and in particular relates to a telescope vision focusing structure. Background Art

[0002] Traditional binoculars usually need to adjust the focal length by setting a hand wheel and a corresponding connecting structure. The existence of the hand wheel and the connecting structure makes the entire focusing structure more complicated. At the same time, since the hand wheel and the connecting structure are always connected to the eyepiece frame, once the hand wheel is touched when using the telescope, the eyepiece frame may move, causing an erroneous operation that changes the focus. Therefore, in view of the defects of the traditional barrel focusing structure, such as complex structure, large volume, and easy to be touched and cause erroneous operation, the present invention discloses a telescope vision focusing structure. Summary of the invention

[0003] The object of the present invention is to provide a telescope diopter focusing structure, which can realize convenient focusing between an eyepiece frame and an eyepiece seat without additionally setting a focusing hand wheel, and control the focusing range at the same time.

[0004] The present invention is achieved through the following technical solutions:

[0005] A telescope diopter focusing structure comprises a fixed eyepiece seat, a movable eyecup which is coaxially arranged on the outer side of the eyepiece seat and is axially movable relative to the eyepiece seat, and an eyepiece frame which is coaxially arranged on the inner side of the eyepiece seat and is axially movable relative to the eyepiece seat; an avoidance ring groove which limits the axial movement of the movable eyecup is arranged between the eyepiece seat and the movable eyecup, and a movable clamping part which is connected or separated with the axial movement of the movable eyecup is arranged between the movable eyecup and the eyepiece frame.

[0006] One end of the eyepiece seat is fixedly connected to the telescope seat body, that is, the eyepiece seat is fixed relative to the eyepiece frame and the movable eye mask. The outer axial movable sleeve of the eyepiece seat is provided with the movable eye mask; the inner axial movable sleeve of the eyepiece seat is provided with the eyepiece frame, that is, the eyepiece seat and the eyepiece frame can perform axial relative movement.

[0007] The above-mentioned axial relative movement is not limited to linear movement along the axial direction only, but refers to the relative movement trend between the eyepiece seat and the movable eyecup, and the eyepiece seat and the eyepiece frame is axial movement, that is, the eyepiece seat and the movable eyecup, and the eyepiece seat and the eyepiece frame can directly perform relative axial linear movement or spiral axial movement.

[0008] Under normal conditions, the movable clamping part between the inner side of the movable eye mask and the eyepiece frame is in a disengaged state, and the movement of the movable eye mask does not drive the eyepiece frame to move. When focusing is required, the movable eye mask is first slid downward along the axial direction until the bottom of the movable eye mask enters the inside of the avoidance ring groove. At this time, the movable eye mask can be rotated along the avoidance ring groove, but the upper end face and the lower end face of the avoidance ring groove can limit the axial movement of the movable eye mask. When the bottom of the movable eye mask enters the inside of the avoidance ring groove, the movable clamping part between the inner side of the movable eye mask and the eyepiece frame is connected to each other, so as to realize the connection between the movable eye mask and the eyepiece frame. At this time, the movable eye mask can drive the eyepiece frame to move axially synchronously, so as to cause relative axial movement between the eyepiece frame and the eyepiece seat to realize focusing.

[0009] In order to better realize the present invention, further, a first spiral groove is provided on the outer side of the eyepiece seat, the bottom end of the first spiral groove is connected to the avoidance ring groove, and the movable eye mask is penetrated by a first pin extending into the first spiral groove and spirally sliding along the first spiral groove.

[0010] When the movable eye shield is rotated, the first pin is driven to slide along the first spiral groove, so that the movable eye shield and the eyepiece seat perform axial relative movement until the first pin slides to the bottom of the first spiral groove and enters the avoidance ring groove, which is arranged along the circumference of the eyepiece seat. When the first pin enters the avoidance ring groove, the first pin will only rotate circumferentially along the avoidance ring groove and will not rotate spirally, that is, at this time, the movable eye shield and the eyepiece seat only perform circumferential relative rotation. At the same time, when the first pin enters the avoidance ring groove, the movable clamping parts between the movable eye mask and the eyepiece frame are clamped with each other, so that the rotation of the movable eye mask can drive the eyepiece frame to rotate synchronously, and then drive the eyepiece frame and the eyepiece seat to rotate relative spirally, so that axial movement is generated between the eyepiece frame and the eyepiece seat to achieve focusing; after the focusing is completed, the movable eye mask is rotated in the reverse direction, so that the first pin on the movable eye mask re-enters the first spiral groove from the avoidance ring groove and slides in the reverse spiral direction along the first spiral groove, at this time, the movable clamping part between the movable eye mask and the eyepiece frame is disengaged, and the movable eye mask is continued to be rotated in the reverse direction to achieve the resetting of the movable eye mask, and at the same time, the movable clamping part between the movable eye mask and the eyepiece frame is disengaged, that is, the movable eye mask no longer drives the eyepiece frame to rotate synchronously.

[0011] In order to better implement the present invention, further, the eyepiece seat and the movable eye mask are connected through a multi-start thread, and the bottom end of the multi-start thread is connected to the avoidance ring groove.

[0012] When the movable eye cover is rotated, the movable eye cover and the eyepiece seat are spirally rotated relative to each other, and the movable eye cover and the eyepiece seat are axially moved relative to each other. The multiple threads on the movable eyecup rotate in a spiral direction toward the avoidance ring groove until the multiple threads on the movable eyecup are disengaged from the multiple threads on the eyepiece seat and enter the avoidance ring groove and the movable clamping portion between the movable eyecup and the eyepiece frame is clamped. At this time, the movable eyecup and the eyepiece seat no longer rotate in a spiral direction relative to each other, but the movable eyecup only rotates circumferentially relative to the eyepiece seat, and then the eyepiece frame is driven to rotate synchronously by the movable eyecup, and then the eyepiece frame and the eyepiece seat are driven to rotate in a spiral direction relative to each other, so that the eyepiece frame and the eyepiece seat are relatively axially moved to achieve focusing; after focusing is completed, the movable eyecup is rotated in the reverse direction so that the multiple threads on the movable eyecup are disengaged from the avoidance ring groove and re-engaged with the multiple threads on the eyepiece seat, and at the same time, the movable clamping portion between the movable eyecup and the eyepiece frame is disengaged, and the movable eyecup no longer drives the eyepiece frame to rotate synchronously, and the movable eyecup is continued to be rotated in the reverse direction, so that the movable eyecup can be reset by spirally ascending along the eyepiece seat.

[0013] In order to better implement the present invention, further, a slide groove is axially arranged on the outer side of the eyepiece seat, and the bottom end of the slide groove is connected to the avoidance ring groove; the movable eye mask is provided with a pin extending into the inside of the slide groove and sliding along the slide groove.

[0014] The movable eye mask is pushed toward the direction close to the avoidance ring groove, so that the pin on the movable eye mask slides along the slide groove toward the avoidance ring groove, and the axial relative sliding between the movable eye mask and the eyepiece seat is realized. Until the pin on the movable eye mask is disengaged from the bottom end of the slide groove and enters the inside of the avoidance ring groove, and the movable clamping part between the movable eye mask and the eyepiece frame is clamped, the movable eye mask rotates along the avoidance ring groove, synchronously drives the eyepiece frame to rotate synchronously, and then drives the eyepiece frame and the eyepiece seat to have a relative spiral rotation, so that the eyepiece frame and the eyepiece seat have a relative axial movement, and the focusing is realized; after the focusing is completed, the movable eye mask is lifted upward so that the pin is disengaged from the avoidance ring groove and returned to the slide groove, and the movable clamping part between the movable eye mask and the eyepiece frame is disengaged, the movable eye mask no longer drives the eyepiece frame to rotate synchronously, and then the movable eye mask is slid upward along the slide groove to reset.

[0015] In order to better implement the present invention, further, a second spiral groove is provided on the eyepiece seat, and a second pin extending into the second spiral groove and spirally sliding along the second spiral groove is provided through the eyepiece frame;

[0016] After the movable clamping part between the eyepiece frame and the movable eye mask is clamped, the eyepiece frame rotates under the drive of the movable eye mask, so that the second pin on the eyepiece frame slides spirally along the second spiral groove, so that the eyepiece frame and the eyepiece seat move relative axially to achieve focusing.

[0017] In order to better realize the present invention, further, the eyepiece seat and the eyepiece frame are connected by a multi-start thread. After the movable clamping part between the eyepiece frame and the movable eye mask is clamped, the eyepiece frame rotates under the drive of the movable eye mask, thereby causing the eyepiece frame and the eyepiece seat to spirally rotate through the cooperation of the multi-start thread, thereby causing relative axial movement between the eyepiece frame and the eyepiece seat to achieve focusing.

[0018] In order to better realize the present invention, further, an adjustment ring is rotatably sleeved on the outer side of the bottom of the eyepiece seat, and a movable clamping portion is provided between the top of the adjustment ring and the bottom of the movable eye mask, which is connected or detached along with the axial movement of the movable eye mask; a vertical guide groove is also provided on the adjustment ring, and one end of the second pin extends to the inside of the second spiral groove and the vertical guide groove in sequence.

[0019] After the movable clamping part between the movable eye mask and the adjustment ring is clamped, the movable eye mask drives the adjustment ring to rotate synchronously, so that the vertical guide groove on the adjustment ring drives the second pin to rotate, and then the second pin slides spirally along the second spiral groove, so that relative axial movement occurs between the eyepiece frame and the eyepiece seat to achieve focusing.

[0020] In order to better implement the present invention, further, an axial straight groove is provided at the bottom of the movable eye mask, and one end of the second pin passes through the second spiral groove and is provided corresponding to the axial straight groove.

[0021] The width of the avoidance ring groove is greater than the width of the first pin or the multi-thread on the movable eye shield, so that the movable eye shield can move axially in the avoidance ring groove. After the movable eye shield enters the avoidance ring groove, the axial straight groove at the bottom of the movable eye shield is aligned with the second pin, and the movable eye shield is pushed in a direction close to the second pin, so that the second pin enters the axial straight groove, and then the movable eye shield is rotated, and the second pin is driven to rotate through the side wall of the axial straight groove, so that the second pin slides spirally along the second spiral groove.

[0022] In order to better implement the present invention, further, a movable clamping portion is provided between the inner top surface of the movable eye mask and the outer upper end surface of the eyepiece frame, which is connected or disconnected with the axial movement of the movable eye mask.

[0023] In order to better implement the present invention, further, a movable clamping portion is provided between the inner side surface of the movable eye mask and the outer side surface of the eyepiece frame, which is connected or disconnected along with the axial movement of the movable eye mask.

[0024] In order to better implement the present invention, further, a return spring is arranged between the bottom of the movable eye mask and the bottom of the eyepiece seat.

[0025] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0026] (1) The present invention movably mounts the movable eye mask on the outer side of the eyepiece seat by means of a multi-threaded spiral connection, an axial sliding connection through a sliding groove, and a spiral connection between a first pin and a first spiral groove, and an avoidance ring groove is provided at the lower side of the outer side of the eyepiece seat to limit the axial movement of the movable eye mask, thereby realizing convenient axial movement of the movable eye mask along the eyepiece seat, and after the limit end of the movable eye mask enters the avoidance ring groove, the axial movement range of the movable eye mask is limited by the avoidance ring groove but the circumferential rotation of the movable eye mask is not limited; at the same time, the movable eye mask is conveniently connected with the eyepiece frame by axially moving the movable eye mask limited by the avoidance ring groove, so that the movable eye mask can drive the eyepiece frame to rotate under the axial limit of the avoidance ring groove, thereby causing relative spiral rotation between the eyepiece frame and the eyepiece seat, so that the eyepiece frame and the eyepiece seat finally generate axial movement, thereby realizing convenient and fast focusing without the need for an additional hand wheel;

[0027] (2) The present invention provides an avoidance ring groove. When the limit end of the movable eyecup enters the avoidance ring groove, the avoidance ring groove limits the axial movement range of the movable eyecup, but does not limit the circumferential rotation of the movable eyecup. As a result, the movable eyecup can drive the eyepiece frame to rotate freely, while limiting the axial movement range of the movable eyecup and the eyepiece frame, thereby limiting the axial focusing range between the eyepiece frame and the eyepiece seat, making the focusing range more controllable.

[0028] (3) The present invention provides a movable engaging portion between the movable eye mask and the eyepiece frame, which can be disengaged or engaged with the axial movement of the movable eye mask. When the limit end of the movable eye mask enters the avoidance ring groove, the movable eye mask can be moved axially to achieve quick engagement of the movable engaging portion between the movable eye mask and the eyepiece frame, thereby achieving the movable eye mask driving the eyepiece frame to rotate synchronously to achieve subsequent focusing. When the movable eye mask moves axially in the reverse direction, the movable engaging portion between the movable eye mask and the eyepiece frame can be quickly disengaged, thereby achieving the movable eye mask not affecting the eyepiece frame during the resetting process after the focusing is completed, thereby effectively fixing the focusing state.

[0029] (4) The present invention drives the eyepiece frame to rotate synchronously through the axial movement and circumferential rotation of the movable eye mask, thereby adjusting the axial position between the eyepiece frame and the eyepiece seat to achieve focusing, eliminating the hand wheel and the connection structure with the hand wheel, while achieving convenient focusing and making the entire focusing structure simpler and more compact. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0031] Figure 2 It is a schematic diagram of the side connection between the eyepiece frame and the movable eye mask;

[0032] Figure 3It is a schematic diagram of the connection between the eyepiece frame and the eyepiece seat through the first spiral groove;

[0033] Figure 4 for Figure 3 Schematic diagram of end face clamping;

[0034] Figure 5 It is a schematic diagram of the eyepiece frame and the eyepiece seat being connected by multi-threaded connection;

[0035] Figure 6 for Figure 5 A schematic diagram of a side snap-on connection;

[0036] Figure 7 for Figure 5 Schematic diagram of end face clamping and disengagement;

[0037] Figure 8 for Figure 5 Schematic diagram of end face card connection;

[0038] Fig. 9 This is the installation diagram of the adjustment ring;

[0039] Fig.10 The diagram is a schematic diagram of the end face clamping of the adjustment ring;

[0040] Fig.11 It is a schematic diagram of the side clamping of the adjustment ring;

[0041] Fig.12 It is a schematic diagram of the engagement and disengagement of the axial straight groove and the second pin;

[0042] Fig.13 It is a schematic diagram of the clamping connection between the axial straight groove and the second pin;

[0043] Fig.14 is a schematic diagram of the connection between the slide slot and the first pin;

[0044] Fig.15 is a schematic diagram of a state where the first pin enters the avoidance ring groove;

[0045] Fig.16 It is a schematic diagram of the movable eye mask and the eyepiece seat being connected through a multi-threaded connection;

[0046] Fig.17 A schematic diagram of the multi-thread of the movable eye shield entering the avoidance ring groove.

[0047] Among them: 1-eyepiece frame; 2-movable eyecup; 3-eyepiece seat; 4-avoidance ring groove; 5-adjustment ring; 6-reset spring; 7-movable clamping part; 01-first spiral groove; 02-second spiral groove; 11-first pin; 22-second pin. DETAILED DESCRIPTION

[0048] Embodiment 1:

[0049] A telescope vision focusing structure of this embodiment, such as Figure 1-Figure 17 As shown, it includes a fixed eyepiece seat 3, a movable eye mask 2 which is axially movable relative to the eyepiece seat 3 is coaxially arranged on the outer side of the eyepiece seat 3, and an eyepiece frame 1 which is axially movable relative to the eyepiece seat 3 is coaxially arranged on the inner side of the eyepiece seat 3; an avoidance ring groove 4 which limits the axial movement of the movable eye mask 2 is arranged between the eyepiece seat 3 and the movable eye mask 2, and a movable clamping portion 7 which is connected or separated with the axial movement of the movable eye mask 2 is arranged between the movable eye mask 2 and the eyepiece frame 1.

[0050] The outer bottom of the eyepiece seat 3 is provided with an avoidance ring groove 4 along the circumferential direction, and the outer coaxial movable sleeve of the eyepiece seat 3 is provided with a movable eye mask 2, and the movable eye mask 2 can perform circumferential relative rotation and axial relative movement with the eyepiece seat 3. In the non-focusing state, the movable clamping part 7 between the movable eye mask 2 and the eyepiece frame 1 is in a disengaged state, and the eyepiece frame 1 does not rotate synchronously with the movable eye mask 2, that is, the eyepiece frame 1 and the eyepiece seat 3 do not rotate relative to each other, that is, the eyepiece frame 1 and the eyepiece seat 3 do not move relative to each other in the axial direction and do not perform focusing.

[0051] When focusing is required, the movable eye mask 2 is driven to move along the eyepiece seat 3 toward the direction close to the avoidance ring groove 4, so that the limit end at the bottom of the movable eye mask 2 enters the avoidance ring groove 4. Due to the axial limit of the movable eye mask 2 by the avoidance ring groove 4, the movable eye mask 2 can rotate relative to the eyepiece seat 3 in the circumferential direction, but the axial movement of the movable eye mask 2 is limited, that is, the movable eye mask 2 can only move axially within a certain range under the limitation of the avoidance ring groove 4. After the limit end of the movable eye mask 2 enters the inside of the avoidance ring groove 4, the movable eye mask 2 is axially moved toward the direction close to the avoidance ring groove 4 so that the movable clamping part 7 between the movable eye mask 2 and the eyepiece frame 1 is mutually clamped, and then the movable eye mask 2 can be driven to rotate circumferentially along the avoidance ring groove 4, and then the eyepiece frame 1 is driven to rotate synchronously, so that the eyepiece frame 1 and the eyepiece seat 3 are relatively spirally rotated, and then the eyepiece frame 1 and the eyepiece seat 3 are relatively axially moved, so as to achieve focusing.

[0052] After the focusing is completed, the movable eye mask 2 is axially moved in a direction away from the avoidance ring groove 4 so that the movable clamping part 7 between the movable eye mask 2 and the eyepiece frame 1 is disengaged from each other and the limiting end of the movable eye mask 2 is disengaged from the avoidance ring groove 4 and reset, so that the eyepiece frame 1 no longer rotates synchronously with the movable eye mask 2, and the focusing is completed.

[0053] A reset spring 6 is sleeved between the bottom of the movable eye mask 2 and the bottom of the eyepiece seat 3. The reset spring 6 usually pushes the movable eye mask 2 upward so that the limit end of the movable eye mask 2 is separated from the avoidance ring groove 4. When focusing is required, the movable eye mask 2 is axially moved toward the direction close to the avoidance ring groove 4. At this time, the reset spring 6 is compressed so that the limit end of the movable eye mask 2 enters the avoidance ring groove 4 for subsequent focusing. After the focusing is completed, the external force is removed, and the reset spring 6 returns to its original state and drives the movable eye mask 2 to move in the direction away from the avoidance ring groove 4, so that the limit end of the movable eye mask 2 is disengaged from the avoidance ring groove 4 and reset. The reset spring 6 allows the movable clamping part 7 between the movable eye mask 2 and the eyepiece frame 1 to be easily disengaged after the focusing is completed, and at the same time, the movable eye mask 2 is disengaged from the avoidance ring groove 4 and reset, so as to realize the quick fixation of the focusing state. Even under the influence of external vibration, since the movable eye mask 2 does not drive the eyepiece frame 1 to rotate after being reset, the influence of external vibration on the focusing state is effectively avoided.

[0054] Embodiment 2:

[0055] This embodiment is further optimized on the basis of the embodiment 1, and the connection modes between the eyepiece seat 3 and the movable eye mask 2 include the following three types:

[0056] (A1) The eyepiece base 3 and the movable eye shield 2 are movably connected by means of a spiral groove and a pin in a spiral fit, that is, a spiral groove is provided on one structure of the eyepiece base 3 or the movable eye shield 2, and a pin extending into the spiral groove and spirally rotating along the spiral groove is provided on the other structure;

[0057] (A2) The eyepiece seat 3 and the movable eye cover 2 are directly threadedly connected via a multi-start thread, that is, a long multi-start thread is provided on one structure of the eyepiece seat 3 or the movable eye cover 2, and one end of the long multi-start thread is connected to the avoidance ring groove 4, and a short multi-start thread matching with the long multi-start thread is provided on the other structure;

[0058] (A3) The eyepiece seat 3 and the movable eye shield 2 are directly connected in an axial sliding manner through an axial sliding groove and a pin, that is, an axial sliding groove is provided on one structure of the eyepiece seat 3 or the movable eye shield 2, and a pin extending into the interior of the sliding groove and sliding axially along the sliding groove is provided on the other structure;

[0059] The connection modes between the eyepiece seat 3 and the eyepiece frame 1 include the following three types:

[0060] (B1) The eyepiece seat 3 and the eyepiece frame 1 are movably connected by means of a spiral groove and a pin in a spiral fit, that is, a spiral groove is provided on one structure of the eyepiece seat 3 or the eyepiece frame 1, and a pin extending into the spiral groove and spirally rotating along the spiral groove is provided on the other structure;

[0061] (B2) The eyepiece seat 3 and the eyepiece frame 1 are directly threadedly connected via a multi-start thread;

[0062] (B3) The eyepiece seat 3 and the eyepiece frame 1 are directly connected in an axial sliding manner through an axial sliding groove and a pin, that is, an axial sliding groove is provided on one structure of the eyepiece seat 3 or the eyepiece frame 1, and a pin extending into the interior of the sliding groove and sliding axially along the sliding groove is provided on the other structure;

[0063] There are four ways in which the movable eye mask 2 and the eyepiece frame 1 are movably connected via the movable connecting portion 7:

[0064] (C1) An end face clamping block is provided on the top end face of the inner side of the movable eye mask 2, and an end face clamping groove is provided on the corresponding clamping block on the top end face of the inner side of the eyepiece frame 1. The end face clamping groove and the end face clamping block are movably connected to each other to form a movable clamping portion 7;

[0065] (C2) A side clamping block is provided on the inner side of the movable eye mask 2, and a side clamping groove is provided on the outer side of the eyepiece frame 1 corresponding to the side clamping block, and the side clamping block and the side clamping groove are movably engaged with each other to form a movable engaging portion 7;

[0066] (C3) An axial straight groove is provided at the bottom of the inner side of the movable eye mask 2 along the axial direction, a spiral groove is provided through the bottom of the eyepiece seat 3, and a pin is provided on the eyepiece frame 1, which passes through the spiral groove and extends to the inside of the axial straight groove, and a movable clamping portion 7 is formed by the movable clamping connection between the axial straight groove and the pin;

[0067] (C4) An adjusting ring 5 is rotatably mounted on the outer side of the bottom of the eyepiece holder 3, an axial straight groove is axially arranged on the adjusting ring 5, and the top end face or side face of the adjusting ring 5 is movably engaged with the bottom end face or inner side face of the movable eye cover 2 to form a movable engaging portion 7, and a spiral groove is provided through the bottom of the eyepiece holder 3, and a pin is provided on the eyepiece frame 1 to pass through the spiral groove and extend to the inside of the axial straight groove.

[0068] The eyepiece seat 3, the eyepiece frame 1, and the movable eye mask 2 are connected in pairs, and any combination can be selected from the above connection structures according to actual use needs.

[0069] Embodiment 3:

[0070] This embodiment is further optimized on the basis of the embodiment 1. The connection mode between the eyepiece seat 3 and the movable eye mask 2 adopts A1, the connection mode between the eyepiece seat 3 and the eyepiece frame 1 adopts B1, and the clamping structure of the movable clamping part 7 between the movable eye mask 2 and the eyepiece frame 1 adopts C2. The specific connection structure is as follows:

[0071] A first spiral groove 01 is arranged on the outer side surface of the eyepiece seat 3, and an avoidance ring groove 4 connected with the bottom end of the first spiral groove 01 is arranged at the bottom of the outer side surface of the eyepiece seat 3; a first pin 11 extending to the inside of the first spiral groove 01 and spirally sliding along the first spiral groove 01 is penetrated on the movable eye mask 2; a second spiral groove 02 is penetrated at the bottom of the eyepiece seat 3, and a second pin 22 extending to the inside of the second spiral groove 02 and spirally sliding along the second spiral groove 02 is penetrated on the eyepiece frame 1; a side clamping block is arranged on the top inner side surface of the movable eye mask 2, and a side clamping groove is arranged on the top outer side surface of the eyepiece frame 1, and the side clamping block and the side clamping groove constitute a movable clamping portion 7.

[0072] like Figure 1 and Figure 2 As shown, the movable eye mask 2 is rotated so that the first pin 11 spirally slides along the first spiral groove 01 toward the direction close to the avoidance ring groove 4, thereby causing the movable eye mask 2 to move axially between the eyepiece seat 3 toward the direction close to the avoidance ring groove 4, until the first pin 11 escapes from the bottom end of the first spiral groove 01 and enters the avoidance ring groove 4, at which time the movable eye mask 2 and the eyepiece seat 3 no longer perform relative spiral rotation, but perform relative circumferential rotation.

[0073] The width of the avoidance annular groove 4 is greater than the diameter of the first pin 11, so that when the first pin 11 rotates circumferentially along the avoidance annular groove 4, it can also move axially within a certain range, and the range of axial movement is the width of the avoidance annular groove 4. After the first pin 11 enters the avoidance annular groove 4, it continues to push the movable eye mask 2 axially in the direction close to the avoidance annular groove 4, so that the movable clamping part 7 between the movable eye mask 2 and the eyepiece frame 1 is mutually clamped, and then the movable eye mask 2 can be rotated circumferentially, thereby driving the eyepiece frame 1 to rotate synchronously.

[0074] When the movable eye mask 2 drives the eyepiece frame 1 to rotate synchronously, it drives the second pin 22 on the eyepiece frame 1 to rotate along the second spiral groove 02, so that the eyepiece frame 1 and the eyepiece seat 3 move relative to each other in the axial direction to achieve focusing. After the focusing is completed, the movable eye mask 2 is pushed axially in the direction away from the avoidance ring groove 4, so that the side block of the movable eye mask 2 is disengaged from the side groove of the eyepiece frame 1, that is, the movable clamping part 7 is disengaged, and the eyepiece frame 1 no longer rotates with the movable eye mask 2, and then the movable eye mask 2 can be rotated in the reverse direction, so that the first pin 11 on the movable eye mask 2 is disengaged from the avoidance ring groove 4 and enters the interior of the first spiral groove 01, so that the movable eye mask 2 is reset.

[0075] The above-mentioned first spiral groove 01 can also be set on the inner side of the movable eye mask 2, then the avoidance ring groove 4 is correspondingly set at the top of the inner side of the movable eye mask 2 and is connected with the top of the first spiral groove 01, and correspondingly, a first pin 11 extending to the inside of the first spiral groove 01 and spirally sliding along the first spiral groove 01 is provided on the outer side of the eyepiece seat 3. The principle of realizing the relative spiral axial movement of the movable eye mask 2 and the eyepiece seat 3 is the same, which will not be repeated here.

[0076] A second spiral groove 02 may also be provided on the eyepiece frame 1, and a second pin 22 may be provided on the eyepiece seat 3, extending into the interior of the second spiral groove 02 and spirally sliding along the second spiral groove 02. That is, the second spiral groove 02 and the second pin 22 may be interchangeably provided on the eyepiece seat 3 and the eyepiece frame 1, respectively. The principle of realizing relative spiral axial rotation between the eyepiece frame 1 and the eyepiece seat 3 is the same and will not be repeated here.

[0077] The other parts of this embodiment are the same as those of Embodiment 1 or 2, and thus will not be described in detail.

[0078] Embodiment 4:

[0079] This embodiment is further optimized on the basis of any one of the above embodiments 1-3. The connection method between the eyepiece seat 3 and the movable eye mask 2 adopts A1, the connection method between the eyepiece seat 3 and the eyepiece frame 1 adopts B1, and the clamping structure of the movable clamping part 7 between the movable eye mask 2 and the eyepiece frame 1 adopts C1. The specific connection structure is as follows:

[0080] like Figure 3 and Figure 4 As shown, a first spiral groove 01 is provided on the outer surface of the eyepiece seat 3, an avoidance ring groove 4 connected to the bottom end of the first spiral groove 01 is provided at the bottom of the outer side surface of the eyepiece seat 3, and a first pin 11 extending to the inside of the first spiral groove 01 and spirally sliding along the first spiral groove 01 is penetrated on the movable eye mask 2; a second spiral groove 02 is penetrated at the bottom of the eyepiece seat 3, and a second pin 22 extending to the inside of the second spiral groove 02 and spirally sliding along the second spiral groove 02 is penetrated on the eyepiece frame 1; an end face clamping block is provided on the inner top end face of the movable eye mask 2, and an end face clamping groove is provided on the outer top end face of the eyepiece frame 1, and the end face clamping block and the end face clamping groove constitute a movable clamping portion 7.

[0081] Since the connection structure between the eyepiece seat 3 and the eyepiece frame 1, and between the eyepiece seat 3 and the movable eye mask 2 is the same as that in the above-mentioned embodiment 2, the principle of realizing the relative spiral rotation between the eyepiece seat 3 and the movable eye mask 2 and the relative spiral rotation between the eyepiece seat 3 and the eyepiece frame 1 is the same as that in the above-mentioned embodiment 2, and will not be repeated here.

[0082] After the first pin 11 enters the avoidance ring groove 4, the movable eye mask 2 continues to be pushed axially in the direction close to the avoidance ring groove 4, so that the end face block on the movable eye mask 2 and the end face groove on the eyepiece frame 1 are mutually engaged, and then the movable eye mask 2 can be rotated circumferentially, thereby driving the eyepiece frame 1 to rotate synchronously.

[0083] The other parts of this embodiment are the same as any one of Embodiments 1-3, so they are not described again.

[0084] Embodiment 5:

[0085] This embodiment is further optimized on the basis of any one of the above embodiments 1-4. The connection method between the eyepiece seat 3 and the movable eye mask 2 adopts A1, the connection method between the eyepiece seat 3 and the eyepiece frame 1 adopts B2, and the clamping structure of the movable clamping part 7 between the movable eye mask 2 and the eyepiece frame 1 adopts C2. The specific connection structure is as follows:

[0086] like Figure 5 and Figure 6 As shown, a first spiral groove 01 is provided on the outer side surface of the eyepiece seat 3, an avoidance ring groove 4 connected with the bottom end of the first spiral groove 01 is provided at the bottom of the outer side surface of the eyepiece seat 3, and a first pin 11 extending to the inside of the first spiral groove 01 and spirally sliding along the first spiral groove 01 is penetrated on the movable eye mask 2; the inner side surface of the eyepiece seat 3 and the outer side surface of the eyepiece frame 1 are connected by a multi-start thread; a side clamping block is provided on the top inner side surface of the movable eye mask 2, and a side clamping groove is provided on the top outer side surface of the eyepiece frame 1, and the side clamping block and the side clamping groove constitute a movable clamping portion 7.

[0087] The connection structure between the movable eye mask 2 and the eyepiece seat 3 and the structure of the movable clamping portion 7 between the movable eye mask 2 and the eyepiece frame 1 are the same as those in the above-mentioned embodiment 2 or 3. Therefore, the spiral rotation between the movable eye mask 2 and the eyepiece seat 3 and the clamping principle between the movable eye mask 2 and the eyepiece frame 1 are the same as those in the above-mentioned embodiment 2 or 3, and are not repeated here.

[0088] When the side block on the movable eye mask 2 is engaged with the side slot on the eyepiece frame 1, the movable eye mask 2 can drive the eyepiece frame 1 to rotate circumferentially, thereby causing the eyepiece frame 1 and the eyepiece seat 3 to rotate spirally, and finally causing axial movement between the eyepiece frame 1 and the eyepiece seat 3 to achieve focusing.

[0089] The other parts of this embodiment are the same as any one of Embodiments 1-4, so they are not described again.

[0090] Embodiment 6:

[0091] This embodiment is further optimized on the basis of any one of the above embodiments 1-5. The connection method between the eyepiece seat 3 and the movable eye mask 2 adopts A1, the connection method between the eyepiece seat 3 and the eyepiece frame 1 adopts B2, and the clamping structure of the movable clamping part 7 between the movable eye mask 2 and the eyepiece frame 1 adopts C1. The specific connection structure is as follows:

[0092] like Figure 7 and Figure 8 As shown, a first spiral groove 01 is provided on the outer side surface of the eyepiece seat 3, an avoidance ring groove 4 connected with the bottom end of the first spiral groove 01 is provided at the bottom of the outer side surface of the eyepiece seat 3, and a first pin 11 extending to the inside of the first spiral groove 01 and spirally sliding along the first spiral groove 01 is penetrated on the movable eye mask 2; the inner side surface of the eyepiece seat 3 and the outer side surface of the eyepiece frame 1 are connected by a multi-start thread; an end face clamping block is provided on the inner top end surface of the movable eye mask 2, and an end face clamping groove is provided on the outer top end surface of the eyepiece frame 1, and the end face clamping block and the end face clamping groove constitute a movable clamping portion 7.

[0093] Since the connection structure between the movable eye mask 2 and the eyepiece seat 3 and the structure of the movable clamping portion 7 between the movable eye mask 2 and the eyepiece frame 1 are the same as those in the above-mentioned embodiment 2 or 3, the principles for realizing spiral rotation between the movable eye mask 2 and the eyepiece seat 3 and the clamping connection between the movable eye mask 2 and the eyepiece frame 1 are the same as those in the above-mentioned embodiment 2 or 3, and are not repeated here.

[0094] When the end face block on the movable eye mask 2 is engaged with the end face slot on the eyepiece frame 1, the movable eye mask 2 can drive the eyepiece frame 1 to rotate circumferentially, thereby causing the eyepiece frame 1 and the eyepiece seat 3 to rotate spirally, and finally causing axial movement between the eyepiece frame 1 and the eyepiece seat 3 to achieve focusing.

[0095] The other parts of this embodiment are the same as any one of Embodiments 1-5, so they are not described again.

[0096] Embodiment 7:

[0097] This embodiment is further optimized on the basis of any one of the above embodiments 1-6. The connection method between the eyepiece seat 3 and the movable eye mask 2 adopts A1, the connection method between the eyepiece seat 3 and the eyepiece frame 1 adopts B1, and the clamping structure of the movable clamping part 7 between the movable eye mask 2 and the eyepiece frame 1 adopts C4. The specific connection structure is as follows:

[0098] A first spiral groove 01 is provided on the outer side surface of the eyepiece seat 3, and an avoidance ring groove 4 connected with the bottom end of the first spiral groove 01 is provided at the bottom of the outer side surface of the eyepiece seat 3. A first pin 11 extending to the inside of the first spiral groove 01 and spirally sliding along the first spiral groove 01 is penetrated on the movable eye mask 2; a second spiral groove 02 is penetrated at the bottom of the eyepiece seat 3, and a second pin 22 extending to the inside of the second spiral groove 02 and spirally sliding along the second spiral groove 02 is penetrated on the eyepiece frame 1; an adjustment ring 5 is rotatably sleeved on the outer side of the bottom of the eyepiece seat 3, an axial straight groove is axially provided on the adjustment ring 5, and the top end face or side face of the adjustment ring 5 is movably engaged with the bottom end face or inner side face of the movable eye mask 2 to form an active engaging portion 7, and the second pin 22 on the eyepiece frame 1 passes through the second spiral groove 02 and extends to the inside of the axial straight groove.

[0099] Since the connection structure between the movable eye mask 2 and the eyepiece seat 3 and the connection structure between the eyepiece seat 3 and the eyepiece frame 1 are the same as those in the above-mentioned embodiment 2 or 3, the principles of realizing spiral rotation between the movable eye mask 2 and the eyepiece seat 3 and between the eyepiece seat 3 and the eyepiece frame 1 are the same as those in the above-mentioned embodiment 2 or 3, and are not repeated here.

[0100] like Fig. 9 and Fig.10 As shown, when the first pin 11 at the bottom of the movable eye mask 2 enters the avoidance ring groove 4, the movable eye mask 2 is axially pushed toward the direction close to the adjustment ring 5, so that the end face block at the bottom of the movable eye mask 2 and the end face groove at the top of the adjustment ring 5 are mutually engaged. Then the movable eye mask 2 can drive the adjustment ring 5 to rotate synchronously, and the adjustment ring 5 can then drive the second pin 22 to rotate along the second spiral groove 02 through the axial straight groove, thereby realizing the axial movement between the eyepiece frame 1 and the eyepiece seat 3 for focusing.

[0101] like Fig.11 As shown, a side clamping block is provided on the inner side surface of the bottom of the movable eye mask 2, and a side clamping groove is provided on the outer side surface of the top of the adjustment ring 5. The side clamping block and the side clamping groove are mutually clamped to form a movable clamping part 7. The clamping principle is the same as the above-mentioned clamping principle, which will not be repeated here.

[0102] The other parts of this embodiment are the same as any one of Embodiments 1-6, so they are not described again.

[0103] Embodiment 8:

[0104] This embodiment is further optimized on the basis of any one of the above embodiments 1-7. The connection method between the eyepiece seat 3 and the movable eye mask 2 adopts A1, the connection method between the eyepiece seat 3 and the eyepiece frame 1 adopts B1, and the clamping structure of the movable clamping part 7 between the movable eye mask 2 and the eyepiece frame 1 adopts C3. The specific connection structure is as follows:

[0105] A first spiral groove 01 is arranged on the outer side surface of the eyepiece seat 3, and an avoidance ring groove 4 connected with the bottom end of the first spiral groove 01 is arranged at the bottom of the outer side surface of the eyepiece seat 3; a first pin 11 extending to the inside of the first spiral groove 01 and spirally sliding along the first spiral groove 01 is penetrated on the movable eye mask 2; a second spiral groove 02 is penetrated at the bottom of the eyepiece seat 3, and a second pin 22 extending to the inside of the second spiral groove 02 and spirally sliding along the second spiral groove 02 is penetrated on the eyepiece frame 1; an axial straight groove is axially arranged on the inner side surface of the bottom of the movable eye mask 2, and one end of the second pin 22 passes through the second spiral groove 02 and extends into the axial straight groove.

[0106] like Fig.12 and Fig.13 As shown, when the first pin 11 at the bottom of the movable eye shield 2 enters the avoidance ring groove 4, the movable eye shield 2 is axially pushed toward the direction close to the eyepiece seat 3, so that the axial straight groove on the inner side of the bottom of the movable eye shield 2 is engaged with one end of the second pin 22 to form a movable engaging portion 7. Then the movable eye shield 2 can drive the second pin 22 to rotate along the second spiral groove 02, thereby realizing the axial movement between the eyepiece frame 1 and the eyepiece seat 3 for focusing.

[0107] The other parts of this embodiment are the same as any one of Embodiments 1-7, so they are not repeated here.

[0108] Embodiment 9:

[0109] This embodiment is further optimized on the basis of any one of the above embodiments 1-8. The connection method between the eyepiece seat 3 and the movable eye mask 2 adopts A3, the connection method between the eyepiece seat 3 and the eyepiece frame 1 adopts B1, and the clamping structure of the movable clamping part 7 between the movable eye mask 2 and the eyepiece frame 1 adopts C2. The specific connection structure is as follows:

[0110] like Fig.14 and Fig.15 As shown, an axial straight groove is axially arranged on the outer side surface of the eyepiece seat 3, and a first pin 11 extending to the inside of the axial straight groove and axially sliding along the axial straight groove is arranged on the inner side surface of the movable eye mask 2; a second spiral groove 02 is penetrated through the bottom of the eyepiece seat 3, and a second pin 22 is penetrated through the eyepiece frame 1 and extends to the inside of the second spiral groove 02 and spirally sliding along the second spiral groove 02; a side clamping block is arranged on the top inner side surface of the movable eye mask 2, and a side clamping groove is arranged on the top outer side surface of the eyepiece frame 1, and the side clamping block and the side clamping groove constitute a movable clamping portion 7.

[0111] The movable eye mask 2 is pushed axially along the axial straight groove toward the direction close to the eyepiece seat 3, so that the first pin 11 on the movable eye mask 2 slides downward along the axial straight groove and enters the avoidance ring groove 4, and at the same time, the side clamping block on the inner side surface of the top of the movable eye mask 2 is engaged with the side clamping groove on the outer side surface of the top of the eyepiece frame 1. At this time, the movable eye mask 2 can be rotated along the avoidance ring groove 4, thereby driving the eyepiece frame 1 to rotate synchronously, so that the second pin 22 rotates spirally along the second spiral groove 02, and finally the eyepiece frame 1 and the eyepiece seat 3 are relatively axially moved for focusing.

[0112] The other parts of this embodiment are the same as any one of Embodiments 1-8, so they will not be repeated here.

[0113] Embodiment 10:

[0114] This embodiment is further optimized on the basis of any one of the above embodiments 1-9. The connection method between the eyepiece seat 3 and the movable eye mask 2 adopts A2, the connection method between the eyepiece seat 3 and the eyepiece frame 1 adopts B1, and the clamping structure of the movable clamping part 7 between the movable eye mask 2 and the eyepiece frame 1 adopts C2. The specific connection structure is as follows:

[0115] like Fig.16 and Fig.17 As shown, a short multi-start thread is provided on the inner side surface of the movable eye mask 2, a long multi-start thread matching the short multi-start thread is provided on the outer side surface of the eyepiece seat 3, and an avoidance ring groove connected with the bottom end of the long multi-start thread is provided at the bottom of the outer side surface of the eyepiece seat 3; a second spiral groove 02 is provided through the bottom of the eyepiece seat 3, and a second pin 22 extending to the inside of the second spiral groove 02 and spirally sliding along the second spiral groove 02 is provided through the eyepiece frame 1; a side clamping block is provided on the top inner side surface of the movable eye mask 2, and a side clamping groove is provided on the top outer side surface of the eyepiece frame 1, and the side clamping block and the side clamping groove constitute a movable clamping portion 7.

[0116] The movable eye mask 2 is rotated toward the direction close to the eyepiece seat 3, so that the movable eye mask 2 and the eyepiece seat 3 are relatively spirally rotated, until the short multi-thread on the movable eye mask 2 is disengaged from the bottom end of the long multi-thread on the eyepiece seat 3 and enters the avoidance ring groove 4, and the width of the avoidance ring groove 4 is greater than the width of the short multi-thread on the inner side of the movable eye mask 2. At the same time, the side block on the inner side of the top of the movable eye mask 2 is mutually engaged with the side groove on the outer side of the top of the eyepiece frame 1. At this time, the movable eye mask 2 is rotated along the avoidance ring groove 4, and then the eyepiece frame 1 is driven to rotate synchronously, so that the second pin 22 is spirally slid along the second spiral groove 02 to realize the relative spiral rotation between the eyepiece seat 3 and the eyepiece frame 1, and finally the relative axial movement between the eyepiece seat 3 and the eyepiece frame 1 is realized for focusing.

[0117] After focusing is completed, the movable eye mask 2 is rotated in the reverse direction. At this time, the side block on the movable eye mask 2 is disengaged from the side slot on the eyepiece frame 1. At the same time, the short multi-start thread on the movable eye mask 2 is disengaged from the avoidance ring groove 4 and re-engaged with the long multi-start thread to achieve the reset of the movable eye mask 2 and the fixation of the focusing state of the eyepiece frame 1.

[0118] The above-mentioned long multi-start thread can also be provided on the inner side surface of the movable eye mask 2, and the avoidance ring groove 4 is correspondingly provided at the top of the inner side surface of the movable eye mask 2 and is connected to the top end of the long multi-start thread. At the same time, a short multi-start thread cooperating with the long multi-start thread is provided on the outer side surface of the eyepiece seat 3, and the principle of relative spiral rotation is the same, which will not be repeated here.

[0119] The other parts of this embodiment are the same as any of the above embodiments 1-9, so they are not repeated here.

[0120] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Any simple modification or equivalent change made to the above embodiment based on the technical essence of the present invention shall fall within the protection scope of the present invention.

Claims

1. A telescope vision focusing structure, characterized in that: The invention comprises an eyepiece seat (3) which is fixedly arranged, a movable eye mask (2) which is axially movable relative to the eyepiece seat (3) being coaxially arranged on the outer side of the eyepiece seat (3), and an eyepiece frame (1) which is axially movable relative to the eyepiece seat (3) being coaxially arranged on the inner side of the eyepiece seat (3); an avoidance ring groove (4) which limits the axial movement of the movable eye mask (2) is arranged between the eyepiece seat (3) and the movable eye mask (2), and a movable clamping portion (7) which is connected or disconnected with the axial movement of the movable eye mask (2) is arranged between the movable eye mask (2) and the eyepiece frame (1); The connection method between the eyepiece seat (3) and the movable eye mask (2) includes: The eyepiece seat (3) and the movable eye mask (2) are movably connected by means of a spiral groove and a pin in spiral cooperation, that is, a spiral groove is provided on one structure of the eyepiece seat (3) or the movable eye mask (2), and a pin extending into the spiral groove and rotating in a spiral along the spiral groove is provided on the other structure; Or the eyepiece seat (3) and the movable eye mask (2) are directly connected in an axial sliding manner via an axial sliding groove and a pin, that is, an axial sliding groove is provided on one structure of the eyepiece seat (3) or the movable eye mask (2), and a pin extending into the interior of the sliding groove and sliding axially along the sliding groove is provided on the other structure; The connection method between the eyepiece seat (3) and the eyepiece frame (1) includes: The eyepiece seat (3) and the eyepiece frame (1) are movably connected by means of a spiral groove and a pin in a spirally matched manner, that is, a spiral groove is provided on one structure of the eyepiece seat (3) or the eyepiece frame (1), and a pin extending into the interior of the spiral groove and spirally rotating along the spiral groove is provided on the other structure; Alternatively, the eyepiece seat (3) and the eyepiece frame (1) are directly connected in an axial sliding manner via an axial sliding groove and a pin, that is, an axial sliding groove is provided on one structure of the eyepiece seat (3) or the eyepiece frame (1), and a pin extending into the interior of the sliding groove and sliding axially along the sliding groove is provided on the other structure.

2. A telescope diopter focusing structure according to claim 1, characterized in that: A first spiral groove (01) is provided on the outer side of the eyepiece seat (3), the bottom end of the first spiral groove (01) is connected to the avoidance ring groove (4), and a first pin (11) is provided through the movable eye mask (2) and extends into the first spiral groove (01) and spirally slides along the first spiral groove (01).

3. The telescope diopter focusing structure according to claim 1, characterized in that: The eyepiece seat (3) and the movable eye mask (2) are connected via a multi-threaded connection, and one end of the multi-threaded connection is connected to the avoidance ring groove (4).

4. The telescope diopter focusing structure according to claim 1, characterized in that: The outer side of the eyepiece seat (3) is provided with a slide groove along the axial direction, and the bottom end of the slide groove is connected to the avoidance ring groove (4); the movable eye mask (2) is provided with a pin extending into the inside of the slide groove and sliding along the axial direction of the slide groove.

5. A telescope diopter focusing structure according to any one of claims 1 to 4, characterized in that: The eyepiece seat (3) is provided with a second spiral groove (02), and the eyepiece frame (1) is provided with a second pin (22) extending into the interior of the second spiral groove (02) and spirally sliding along the second spiral groove (02).

6. A telescope diopter focusing structure according to any one of claims 1 to 4, characterized in that: The eyepiece seat (3) and the eyepiece frame (1) are connected via a multi-threaded connection.

7. The telescope diopter focusing structure according to claim 5, characterized in that: An adjusting ring (5) is rotatably sleeved on the outer side of the bottom of the eyepiece seat (3); a movable clamping portion (7) is provided between the top of the adjusting ring (5) and the bottom of the movable eye mask (2), which is connected or disconnected with the axial movement of the movable eye mask (2); a vertical guide groove is also provided on the adjusting ring (5); one end of the second pin (22) extends to the inside of the second spiral groove (02) and the vertical guide groove in sequence.

8. The telescope diopter focusing structure according to claim 5, characterized in that: An axial straight groove is arranged at the bottom of the movable eye mask (2), and one end of the second pin (22) passes through the second spiral groove (02) and corresponds to the arrangement of the axial straight groove.

9. The telescope diopter focusing structure according to claim 6, characterized in that: A movable clamping portion (7) is provided between the inner top surface of the movable eye mask (2) and the outer upper end surface of the eyepiece frame (1), which is connected or disconnected with the axial movement of the movable eye mask (2).

10. The telescope diopter focusing structure according to claim 6, characterized in that: A movable clamping portion (7) is provided between the inner side surface of the movable eye mask (2) and the outer side surface of the eyepiece frame (1), which is connected or disconnected with the axial movement of the movable eye mask (2).

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