Lens device with self-locking function

Abstract

The utility model discloses a lens device with a self-locking function, and the device comprises a lens mechanism which comprises a lens body, and the lens body comprises an unlocking end and a self-locking end; the lens mounting seat is concave inwards to form a lens cavity for mounting the lens body; the unlocking structure is arranged at the unlocking end and is used for being matched with the lens mounting seat to release or limit the rotation of the lens body; the self-locking mechanism comprises a lens locking ring and a mounting seat locking ring, and the lens locking ring and the mounting seat locking ring are arranged at the self-locking end and the lens cavity respectively so that the lens body and the lens mounting seat can be rotationally disengaged or locked; and the elastic component is arranged in the lens cavity, so that the lens body is elastically pressed against the elastic component when being mounted in the lens cavity. According to the utility model, the unlocking structure is adopted to release or limit the rotation of the lens body, and the lens body is rotated along the first direction or the second direction, so that the switching between the unlocking state and the locking state of the self-locking mechanism is realized, the fixing reliability of the lens mechanism is improved, and the disassembly and assembly operation is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of lens devices, in particular to a lens device with a self-locking function. Background Art

[0002] Infrared thermal imaging instruments typically require a corresponding infrared thermal imaging lens assembly to achieve thermal imaging. Existing lens assemblies generally utilize a threaded mounting structure. This requires external threads on the outer periphery of the lens assembly and matching internal threads on the inner wall of the lens mounting base. During use, the lens assembly must be continuously rotated to achieve a locked installation. This results in lengthy installation times, and damage to the internal and external threads can render the lens assembly impossible to install or remove. Utility Model Content

[0003] In order to overcome the above technical problems, the utility model discloses a lens device with a self-locking function.

[0004] The technical solution adopted by the present invention to achieve the above-mentioned purpose is:

[0005] A lens device with a self-locking function, comprising:

[0006] A lens mechanism, comprising a lens body, wherein the lens body comprises an unlocking end and a self-locking end;

[0007] A lens mounting seat, the inner concave of which forms a lens cavity for mounting the lens body;

[0008] An unlocking structure, provided at the unlocking end, for cooperating with the lens mounting seat to release or restrict the rotation of the lens body;

[0009] A self-locking mechanism comprising a lens locking ring and a mounting seat locking ring, wherein the lens locking ring and the mounting seat locking ring are respectively arranged at the self-locking end and the lens cavity to enable the lens body and the lens mounting seat to be rotationally disengaged or locked;

[0010] an elastic component disposed in the lens cavity so that the lens body is elastically pressed against the elastic component when the lens body is installed in the lens cavity;

[0011] When the unlocking structure releases the restriction on the rotation of the lens body and applies a force in a first direction to rotate the lens body relative to the lens mount in the first direction, the lens lock ring and the mount lock ring change from a locked state to an unlocked state, and the elastic component provides a force for the lens body to move away from the movement trend to achieve unlocking;

[0012] When a force in a second direction is applied to rotate the lens body relative to the lens mounting seat in the second direction, the lens body generates a force on the elastic component that tends to move closer, and the lens locking ring and the mounting seat locking ring change from an unlocked state to a locked state, and the unlocking structure restricts the rotation of the lens body to achieve self-locking;

[0013] The first direction is opposite to the second direction.

[0014] The lens device with self-locking function is provided with an initial locking groove and a stop locking groove in sequence along the circumferential direction of the lens mounting seat;

[0015] The unlocking structure includes a spring and a button, the button includes a pressing end, a hinged end and a movable tongue end arranged in sequence, the hinged end is hingedly arranged on the lens body, the spring is arranged between the pressing end and the lens body, and the movable tongue end is clamped in the initial lock groove or the locking lock groove.

[0016] The above-mentioned lens device with a self-locking function, wherein the spring has an initial state and a deformed state, and the spring in the initial state prevents the movable tongue end from disengaging from the lens mounting seat;

[0017] The pressing end drives the spring from the initial state to the deformed state under the action of an external force, and the lens body rotates along the first direction, and the movable tongue end moves from the locking groove to the initial locking groove, thereby realizing the disengagement of the lens body and the lens mounting seat;

[0018] The lens body rotates along the second direction, the movable tongue end moves from the initial locking groove to the locking groove, and the pressing end changes from the deformed state to the initial state, so as to achieve locking of the lens body and the lens mounting seat.

[0019] The above-mentioned lens device with self-locking function, wherein a limit pin is provided on the lens mounting seat extending toward the lens cavity;

[0020] The lens lock ring is provided with a limiting groove for allowing the limiting pin to move.

[0021] In the above-mentioned lens device with a self-locking function, the angle between the initial locking groove and the latching locking groove is equal to the angle between the two ends of the limiting groove.

[0022] The lens device with a self-locking function, wherein the lens locking ring includes a locking boss, and a plurality of groups of first locking protrusions are provided on the locking boss at intervals.

[0023] The mounting seat lock ring comprises a hollow locking hole, and a second clamping protrusion is arranged at the locking hole corresponding to the first clamping protrusion;

[0024] The first clamping protrusion is rotated relative to the second clamping protrusion along the first direction to completely coincide with each other, so that the first clamping protrusion and the second clamping protrusion change from the locked state to the unlocked state.

[0025] The first clamping protrusion is rotated relative to the second clamping protrusion along the second direction to completely coincide or partially coincide with each other, so that the first clamping protrusion and the second clamping protrusion change from the unlocked state to the locked state.

[0026] The lens device with the self-locking function has the following beneficial effects.

[0027] The lens device with the self-locking function has the following beneficial effects.

[0028] The lens device with the self-locking function has the following beneficial effects.

[0029] The lens device with the self-locking function has the following beneficial effects.

[0030] The lens device with the self-locking function has the following beneficial effects.

[0031] The lens device with the self-locking function has the following beneficial effects. BRIEF DESCRIPTION OF DRAWINGS

[0032] The utility model is further described below in combination with the drawings and examples.

[0033] Figure 1 The utility model is further described below in combination with the drawings and examples. DETAILED DESCRIPTION

[0034] The present invention will be further described below through specific embodiments to make the technical solution of the present invention easier to understand and grasp, rather than to limit the present invention.

[0035] Example: See Figure 1 This embodiment provides a lens device with a self-locking function, the device comprising:

[0036] A lens mechanism 1, comprising a lens body, wherein the lens body comprises an unlocking end and a self-locking end;

[0037] A lens mounting seat 2, the inner concave portion of which forms a lens cavity for mounting the lens body;

[0038] An unlocking structure 3, provided at the unlocking end, for cooperating with the lens mounting seat 2 to release or restrict the rotation of the lens body;

[0039] A self-locking mechanism includes a lens locking ring 41 and a mounting seat locking ring 42, wherein the lens locking ring 41 and the mounting seat locking ring 42 are respectively arranged at the self-locking end and the lens cavity to enable the lens body and the lens mounting seat 2 to be rotationally disengaged or locked;

[0040] an elastic component disposed in the lens cavity so that the lens body is elastically pressed against the elastic component when the lens body is installed in the lens cavity;

[0041] When the unlocking structure 3 releases the restriction on the rotation of the lens body and applies a force in a first direction to rotate the lens body relative to the lens mounting seat 2 along the first direction, the lens locking ring 41 and the mounting seat locking ring 42 change from a locked state to an unlocked state, and the elastic component provides a force for the lens body to move away from the movement trend to achieve unlocking;

[0042] When a force in a second direction is applied to rotate the lens body relative to the lens mounting seat 2 in the second direction, the lens body generates a force on the elastic component to move closer, and the lens locking ring 41 and the mounting seat locking ring 42 change from an unlocked state to a locked state, and the unlocking structure 3 restricts the rotation of the lens body to achieve self-locking.

[0043] The first direction is opposite to the second direction.

[0044] Specifically, the unlocking structure 3 is used to release or restrict the rotation of the lens body, and the lens body is rotated a certain angle along the first direction or the second direction to achieve the switching of the unlocked state and the locked state of the self-locking mechanism, effectively improving the fixing reliability of the lens mechanism 1, and the disassembly and assembly operations are convenient and safe.

[0045] Preferably, an initial locking groove and a locking groove are sequentially provided along the circumferential direction of the lens mounting seat 2;

[0046] The unlocking structure 3 includes a spring and a button. The button includes a pressing end, a hinged end, and a movable tongue end, which are arranged in sequence. The hinged end is hingedly arranged on the lens body. The spring is arranged between the pressing end and the lens body. The movable tongue end is locked in the initial lock groove or the locking lock groove.

[0047] The spring has an initial state and a deformed state, and the spring in the initial state prevents the movable tongue end from disengaging from the lens mounting seat 2;

[0048] The pressing end drives the spring from the initial state to the deformed state under the action of an external force, and the lens body rotates along the first direction, and the movable tongue end moves from the locking groove to the initial locking groove, thereby realizing the disengagement of the lens body and the lens mounting seat 2;

[0049] The lens body rotates along the second direction, the movable tongue end moves from the initial locking groove to the locking groove, and the pressing end changes from the deformed state to the initial state, so as to achieve locking of the lens body and the lens mounting seat 2.

[0050] Furthermore, a limit pin is provided on the lens mounting seat 2 extending toward the lens cavity;

[0051] The lens lock ring 41 is provided with a limiting groove for allowing the limiting pin to move;

[0052] When the lens body rotates relative to the lens mounting seat 2 along the first direction or the second direction, the limiting pin is displaced in the limiting groove to limit the rotation angle and range of the lens body.

[0053] Furthermore, the angle between the initial lock groove and the latching lock groove is equal to the angle between the two ends of the limiting groove; wherein, the rotation angle of the lens body depends on the angle of the movable tongue end moving back and forth between the initial lock groove and the latching lock groove, that is, depends on the displacement angle of the limiting pin in the limiting groove; in this embodiment, the angle between the initial lock groove and the latching lock groove, and the angle between the two ends of the limiting groove are both set to 30°.

[0054] Preferably, the lens locking ring 41 includes a locking boss, and a plurality of first locking protrusions are provided on the locking boss at intervals.

[0055] The mounting seat locking ring 42 includes a hollow locking hole, and a second locking protrusion is provided in the locking hole corresponding to the first locking protrusion;

[0056] wherein, when the lens body is placed in the lens cavity, the locking boss is inserted into the locking hole;

[0057] the first clamping protrusion is rotated relative to the second clamping protrusion along the first direction to a state where they are completely disengaged or partially disengaged, so as to change the first and second clamping protrusions from the locked state to the unlocked state;

[0058] the first clamping protrusion is rotated relative to the second clamping protrusion along the second direction to a state where they are completely engaged or partially engaged, so as to change the first and second clamping protrusions from the unlocked state to the locked state.

[0059] Further, the distance between adjacent first clamping protrusions is equal to the distance between adjacent second clamping protrusions, so as to ensure the accuracy of disengagement and locking.

[0060] Preferably, the device further comprises an electrical connection assembly 5 arranged on the lens mount 2, which comprises a PCB board and a plurality of spring pins electrically connected;

[0061] The lens mechanism 1 is provided with a connection point corresponding to the spring pins, so that when the lens body is mounted in the lens cavity, the spring pins are in contact with the connection point to achieve electrical connection;

[0062] wherein, when the lens body is placed in the lens cavity, the locking boss is inserted into the locking hole;

[0063] Further, the lens locking ring 41 is provided with a positioning groove for positioning the elastic component;

[0064] wherein, when the lens body is placed in the lens cavity, the locking boss is inserted into the locking hole;

[0065] Further, the lens mechanism 1 further comprises a lens end cover, which is mounted on the unlocking end.

[0066] The utility model discloses when installing, comprising the following steps:

[0067] Step 1-1, adjust the position of the lens body, so that the tongue end is aligned with the initial lock slot;

[0068] Step 1-2, the lens body is inserted into the lens cavity, at this time, the limit pin is inserted into the limit slot, the elastic component is compressed and positioned in the positioning groove, the spring pin is compressed and connected with the connection point to achieve electrical connection;

[0069] In step 1-3, a force in the second direction is applied to rotate the lens body relative to the lens mount 2 along the second direction, and the movable tongue end moves from the initial lock groove to and is fixed in the locking groove. At this time, the lens locking ring 41 and the mount locking ring 42 change from an unlocked state to a locked state to achieve self-locking installation.

[0070] The utility model comprises the following steps when disassembling:

[0071] Press the pressing end and apply a force in the first direction to rotate the lens body relative to the lens mount 2 along the first direction, and the movable tongue end moves from the locking groove to the initial locking groove. At this time, the lens locking ring 41 and the mount locking ring 42 change from a locked state to an unlocked state, and the elastic component provides the lens body with a force away from the movement trend to achieve unlocking and disassembly.

[0072] The design of the utility model is reasonable and ingenious. The unlocking structure is used to release or restrict the rotation of the lens body, and the lens body is rotated a certain angle along the first direction or the second direction to realize the switching of the unlocking state and the locking state of the self-locking mechanism, thereby effectively improving the fixing reliability of the lens mechanism and making the disassembly and assembly operations convenient and safe.

[0073] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation on the present invention. Any person skilled in the art can, without departing from the scope of the present invention, utilize the above-disclosed technical means and technical content to make many possible variations and modifications to the present invention, or modify it into equivalent embodiments with equivalent variations. Therefore, all equivalent variations based on the shape, structure, and principle of the present invention that do not depart from the content of the present invention's technical solution should be included in the scope of protection of the present invention.

Claims

1. A lens device with a self-locking function, characterized in that: The device comprises: A lens mechanism, comprising a lens body, wherein the lens body comprises an unlocking end and a self-locking end; A lens mounting seat, the inner concave of which forms a lens cavity for mounting the lens body; An unlocking structure, provided at the unlocking end, for cooperating with the lens mounting seat to release or restrict the rotation of the lens body; A self-locking mechanism comprising a lens locking ring and a mounting seat locking ring, wherein the lens locking ring and the mounting seat locking ring are respectively arranged at the self-locking end and the lens cavity to enable the lens body and the lens mounting seat to be rotationally disengaged or locked; an elastic component disposed in the lens cavity so that the lens body is elastically pressed against the elastic component when the lens body is installed in the lens cavity; When the unlocking structure releases the restriction on the rotation of the lens body and applies a force in a first direction to rotate the lens body relative to the lens mount in the first direction, the lens lock ring and the mount lock ring change from a locked state to an unlocked state, and the elastic component provides a force for the lens body to move away from the movement trend to achieve unlocking; When a force in a second direction is applied to rotate the lens body relative to the lens mounting seat in the second direction, the lens body generates a force on the elastic component that tends to move closer, and the lens locking ring and the mounting seat locking ring change from an unlocked state to a locked state, and the unlocking structure restricts the rotation of the lens body to achieve self-locking; The first direction is opposite to the second direction.

2. The lens device with self-locking function according to claim 1, characterized in that: An initial locking groove and a locking groove are sequentially provided along the circumferential direction of the lens mounting seat; The unlocking structure includes a spring and a button, the button includes a pressing end, a hinged end and a movable tongue end arranged in sequence, the hinged end is hingedly arranged on the lens body, the spring is arranged between the pressing end and the lens body, and the movable tongue end is clamped in the initial lock groove or the locking lock groove.

3. The lens device with self-locking function according to claim 2, characterized in that: The spring has an initial state and a deformed state, and in the initial state, the spring prevents the movable tongue end from separating from the lens mounting seat; The pressing end drives the spring from the initial state to the deformed state under the action of an external force, and the lens body rotates along the first direction, and the movable tongue end moves from the locking groove to the initial locking groove, thereby realizing the disengagement of the lens body and the lens mounting seat; The lens body rotates along the second direction, the movable tongue end moves from the initial locking groove to the locking groove, and the pressing end changes from the deformed state to the initial state, so as to achieve locking of the lens body and the lens mounting seat.

4. The lens device with self-locking function according to claim 3, characterized in that: A limit pin is provided on the lens mounting seat extending toward the lens cavity; The lens lock ring is provided with a limiting groove for allowing the limiting pin to move.

5. The lens device with self-locking function according to claim 4, characterized in that: The angle between the initial locking groove and the locking groove is equal to the angle between the two ends of the limiting groove.

6. The lens device with self-locking function according to claim 1, characterized in that: The lens locking ring includes a locking boss, and a plurality of first locking protrusions are provided on the locking boss at intervals. The mounting seat lock ring includes a hollow locking hole, and a second locking protrusion is provided in the locking hole corresponding to the first locking protrusion; The first securing protrusion is rotated relative to the second securing protrusion along the first direction until the two completely do not overlap, so that the first securing protrusion and the second securing protrusion are changed from a locked state to an unlocked state; The first securing protrusion rotates relative to the second securing protrusion along the second direction until the two completely overlap or partially overlap, so that the first securing protrusion and the second securing protrusion are changed from an unlocked state to a locked state.

7. The lens device with self-locking function according to claim 6, characterized in that: The arrangement distance between adjacent first securing protrusions is equal to the arrangement distance between adjacent second securing protrusions.

8. The lens device with self-locking function according to claim 1, characterized in that: The device further comprises an electrical connection assembly disposed on the lens mounting seat, the electrical connection assembly comprising an electrically connected PCB board and a plurality of groups of spring pins; The lens mechanism is provided with a connection point corresponding to the spring pin, so that when the lens body is installed in the lens cavity, the spring pin contacts the connection point to achieve electrical connection.

9. The lens device with self-locking function according to claim 1, characterized in that: The lens lock ring is provided with a positioning groove for positioning the elastic component.

10. The lens device with self-locking function according to claim 1, wherein: The lens mechanism further includes a lens end cover, which is mounted on the unlocking end.

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