Adjusting mechanism for ophthalmoscope

Abstract

The present application relates to the technical field of shipbuilding, and particularly relates to an adjusting mechanism of a sight glass. The adjusting mechanism of the sight glass comprises a support assembly and an adjusting assembly. The support assembly comprises a front seat frame, a joint ball head and a rear bracket, the front seat frame is connected with the rear bracket, and the joint ball head is rotatably arranged in the front seat frame. The front end of the sight glass is fixedly arranged in a through hole of the joint ball head, the front seat frame can be arranged in an inner hole of a stern tube of a ship, and the position of the front seat frame relative to the inner hole can be adjusted in the up-down direction and the left-right direction. The adjusting assembly is arranged on the rear bracket, and the adjusting assembly is in transmission connection with the rear end of the sight glass to adjust the position of the rear end of the sight glass in the up-down direction and the left-right direction, respectively. The front end of the sight glass is mounted on the front seat frame through the joint ball head, when the adjusting assembly adjusts the rear end of the sight glass, the axis of the front end of the sight glass will not be deviated, the number of adjustment operations of the sight glass is simplified, the adjustment time is shortened, and the adjustment efficiency and the adjustment accuracy are improved.

Description

Technical Field

[0001] This invention relates to the field of shipbuilding technology, and in particular to an adjustment mechanism for a telescope. Background Technology

[0002] During shipbuilding, the ship's shafting is an important component of the ship's power plant. Its task is to transmit the power generated by the main engine to the propeller, and at the same time, to transmit the thrust generated by the propeller to the hull to propel the ship. Once the centerline of the ship's shafting is determined, a telescope is used to project its centerline onto the fore and aft ends of the stern tube to facilitate the boring of the stern tube or the positioning of the integral stern tube.

[0003] When using a telescope, the adjustment mechanism needs to align the telescope's axis with the ship's shafting centerline. Existing adjustment mechanisms typically use bolts as adjustment components, adjusting the telescope's position in both vertical and horizontal directions by turning the bolts. Because adjusting the telescope's vertical position causes a change in its horizontal position, and vice versa, repeated adjustments in both directions are necessary, resulting in excessively long adjustment times and low accuracy.

[0004] Therefore, there is an urgent need for an adjustment mechanism for a telescope to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to provide an adjustment mechanism for a telescope, so as to simplify the adjustment operation of the telescope and improve the adjustment efficiency and accuracy.

[0006] To achieve this objective, the technical solution adopted by the present invention is as follows:

[0007] An adjustment mechanism for a telescope, comprising:

[0008] A support assembly, comprising a front seat frame, a joint ball joint, and a rear bracket, wherein the front seat frame is connected to the rear bracket, and the joint ball joint is rotatably disposed within the front seat frame; the front end of a telescope is fixedly inserted through a through hole in the joint ball joint; the front seat frame is operable within the inner hole of the stern tube of a ship and its position relative to the inner hole is adjustable in both vertical and horizontal directions; and

[0009] An adjustment component is disposed on the rear bracket and is connected to the rear end of the telescope for adjusting the position of the rear end of the telescope along the vertical direction and the horizontal direction, respectively.

[0010] As a preferred embodiment, the front seat frame includes:

[0011] The main frame has a first joint cavity, and the main frame extends rearward in the front-to-back direction to connect to the rear bracket; and

[0012] The seat ring has a second joint cavity. The seat ring is disposed on the main body frame so that the first joint cavity and the second joint cavity surround to form a ball socket. The joint ball head is rotatably disposed in the ball socket.

[0013] As a preferred embodiment, the front seat frame further includes:

[0014] An adjusting rod, one end of which is connected to the main frame, and the other end which can abut against or be connected to the inner hole of the stern tube; the adjusting rod is configured to adjust the position of the main frame in the inner hole along the vertical direction and the horizontal direction, respectively.

[0015] As a preferred embodiment, the adjustment mechanism of the telescope further includes:

[0016] A reference card has a crosshair at its center; the first joint cavity has a stepped surface extending circumferentially therein, and the reference card is detachably mounted on the stepped surface. The adjusting rod adjusts the position of the main frame so that the center of the crosshair coincides with the center line of the ship's shafting.

[0017] As a preferred embodiment, the adjusting rod is a bolt, one end of which is threaded to the main frame, and the other end is pressed against the inner wall of the inner hole.

[0018] As a preferred embodiment, the adjustment component includes:

[0019] A lifting assembly, comprising a base plate and a top plate, wherein the base plate is disposed on the rear bracket, and the top plate is vertically and flexibly disposed on the base plate along the vertical direction; and

[0020] The translation component includes a slide table and a slider. The slide table is disposed on the top plate, and the slider is drivenly connected to the rear end of the telescope and is slidably disposed on the slide table in the left-right direction.

[0021] As a preferred embodiment, the translation component further includes:

[0022] A lead screw and a knob are provided. The lead screw extends in the left-right direction and is rotatably disposed in the slide. The slider is connected to the lead screw by ball bearings. The knob is provided at one end of the lead screw that extends out of the slide.

[0023] As a preferred embodiment, the lifting assembly further includes:

[0024] The scissor frame is capable of unfolding or folding along the vertical direction, and its two ends along the vertical direction are respectively connected to the top plate and the bottom plate.

[0025] As a preferred embodiment, the adjustment mechanism of the telescope further includes a clamp assembly, the clamp assembly comprising:

[0026] A first clamp and a second clamp, the first clamp being mounted on the slider, and the second clamp being movably mounted on the first clamp and capable of jointly clamping the rear end of the telescope; and

[0027] The locking element is configured to lock or unlock the first clamp and the second clamp.

[0028] As a preferred embodiment, both the support assembly and the adjustment assembly are made of aluminum alloy.

[0029] The beneficial effects of this invention are as follows:

[0030] The telescope adjustment mechanism proposed in this invention adjusts the position of the telescope via a front mount within the stern tube along both vertical and horizontal directions. This ensures that the axis of the articulated ball joint coincides with the centerline of the ship's shafting, thereby aligning the axis of the telescope's front end with the centerline of the ship's shafting. Then, the adjustment components adjust the position of the telescope's rear end along both vertical and horizontal directions to align its axis with the centerline of the ship's shafting, thus aligning the telescope's axis with the ship's shafting centerline. The telescope adjustment mechanism has a simple structure and is easy to operate. Because the front end of the telescope is mounted on the front mount via the articulated ball joint, its axis always remains aligned with the centerline of the ship's shafting. When the adjustment components adjust the rear end of the telescope, the axis of the front end will not shift. Therefore, the telescope's position can be adjusted in a single step, shortening the adjustment time and improving adjustment efficiency and accuracy. Attached Figure Description

[0031] Figure 1 This is a front view of the adjustment mechanism of the telescope provided in an embodiment of the present invention;

[0032] Figure 2 This is a side view of the adjustment mechanism of the telescope provided in an embodiment of the present invention;

[0033] Figure 3 This is a schematic diagram of the structure of the adjustment component provided in an embodiment of the present invention;

[0034] Figure 4 This is a schematic diagram of the structure of the clamp assembly provided in an embodiment of the present invention.

[0035] The component names and labels in the diagram are as follows:

[0036] 10. Telescope; 20. Stern tube;

[0037] 1. Front seat frame; 11. Main frame; 12. Seat ring; 13. Adjustment rod; 2. Joint ball joint; 3. Rear bracket;

[0038] 4. Adjustment assembly; 41. Lifting assembly; 411. Base plate; 412. Top plate; 413. Scissor beam; 42. Translation assembly; 421. Slide table; 422. Slider; 423. Lead screw; 424. Knob;

[0039] 5. Clamp assembly; 51. First clamp; 52. Second clamp; 53. Locking component; 6. Pad. Detailed Implementation

[0040] To make the technical problems solved by the present invention, the technical solutions adopted, and the technical effects achieved clearer, the technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely for explaining the present invention and are not intended to limit the present invention. Furthermore, it should be noted that, for ease of description, only the parts related to the present invention are shown in the accompanying drawings, not all of them.

[0041] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0042] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0043] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. In addition, the terms "first" and "second" are used only for distinction in description and have no special meaning.

[0044] The technical solution of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0045] Once the centerline of the ship's shafting is determined, a telescope is needed to project the centerline onto the front and rear ends of the stern tube. This is to facilitate the boring of the stern tube or the final positioning of the entire stern tube, thereby achieving precise installation of the ship's shafting inside the stern tube.

[0046] Currently, the adjustment mechanism is typically installed inside the stern tube. Markers are installed at both ends of the engine room, where the stern tube is located. Each marker is engraved with a crosshair, and the line connecting the centers of the two crosshairs coincides with the centerline of the ship's shafting. The adjustment mechanism only needs to align the telescope's axis with the centerline of the ship's shafting. However, when adjusting the telescope's vertical position, its horizontal position changes accordingly; similarly, adjusting its horizontal position changes its vertical position. This requires repeated adjustments, resulting in excessively long adjustment times and low adjustment accuracy.

[0047] To solve the above problems, such as Figure 1 and Figure 2 As shown, this embodiment proposes an adjustment mechanism for a telescope, specifically including a support assembly and an adjustment assembly 4. The support assembly includes a front frame 1, a joint ball joint 2, and a rear bracket 3. The front frame 1 is connected to the rear bracket 3, and the joint ball joint 2 is rotatably disposed within the front frame 1. The front end of the telescope 10 is fixedly inserted into the through hole of the joint ball joint 2. The front frame 1 is disposed within the inner hole of the stern tube 20 of the ship and its position relative to the inner hole is adjustable in the vertical and horizontal directions. The adjustment assembly 4 is disposed on the rear bracket 3 and is drivenly connected to the rear end of the telescope 10 to adjust the position of the rear end of the telescope 10 in the vertical and horizontal directions, respectively.

[0048] In this embodiment, the position of the front seat 1 within the inner hole of the stern tube 20 is adjusted in both the vertical and horizontal directions to align the center of the articulated ball joint 2 with the centerline of the ship's shafting, thereby aligning the axis of the front end of the telescope 10 with the centerline of the ship's shafting. Then, the position of the rear end of the telescope 10 is adjusted in both the vertical and horizontal directions using the adjustment assembly 4, so that the axis of the rear end of the telescope 10 coincides with the centerline of the ship's shafting. The line connecting the axes of the front and rear ends of the telescope 10 is the axis of the telescope 10, thus aligning the axis of the telescope 10 with the centerline of the ship's shafting.

[0049] It should be noted that when the center of the front axis of the telescope 10 coincides with the center of the crosshairs on the marker at the stern of the engine room, the center of the front axis of the telescope 10 coincides with the centerline of the ship's shafting. When the center of the rear axis of the telescope 10 coincides with the center of the crosshairs on the marker at the bow of the engine room, the center of the rear axis of the telescope 10 coincides with the centerline of the ship's shafting.

[0050] The overall structure of the telescope adjustment mechanism in this embodiment is simple, and the adjustment operation is convenient. Meanwhile, the front end of the telescope 10 is mounted on the front frame 1 via the articulated ball joint 2, ensuring that the axis of the front end of the telescope 10 always coincides with the center line of the ship's shafting. When the adjustment assembly 4 adjusts the rear end of the telescope 10, the axis of the front end of the telescope 10 will not shift. That is, the position adjustment of the telescope 10 can be completed with a single adjustment for both the front and rear ends, shortening the adjustment time and improving adjustment efficiency and accuracy.

[0051] like Figure 1 and Figure 2 As shown, the front frame 1 includes a main frame 11 and a seat ring 12. The main frame 11 has a first joint cavity, and a rear bracket 3 is connected to the main frame 11 extending rearward in the front-rear direction. The seat ring 12 has a second joint cavity and is mounted on the main frame 11 so that the first joint cavity and the second joint cavity form a ball joint. The ball joint head 2 is rotatably mounted in the ball joint. By making the front frame 1 a split structure, the installation of the ball joint head 2 is convenient. When the ball joint head 2 is installed in the ball joint, the front frame 1 and the ball joint head 2 are assembled into a ball joint bearing structure, which improves the reliable support for the front end of the telescope 10.

[0052] like Figure 2 As shown, the front seat frame 1 also includes an adjusting rod 13. One end of the adjusting rod 13 is connected to the main frame 11, and the other end can be pressed against or connected to the inner hole of the stern tube 20. The adjusting rod 13 can adjust the position of the main frame 11 in the vertical and horizontal directions within the inner hole, respectively.

[0053] Specifically, there are four adjusting rods 13. Two adjusting rods 13 are installed on both sides of the main frame 11 in the vertical direction, and the other two adjusting rods 13 are installed on both sides of the main frame 11 in the horizontal direction. This arrangement of four adjusting rods 13 around the main frame 11 improves the installation stability of the main frame 11 within the inner hole of the stern tube 20. It also makes the adjustment of the main frame 11 in both the vertical and horizontal directions more stable and reliable.

[0054] In this embodiment, the adjusting rod 13 is preferably a bolt, with one end threaded to the main frame 11 and the other end pressed against the inner wall of the inner hole. The position of the main frame 11 in the vertical direction can be adjusted by simultaneously turning two bolts distributed along the vertical direction. Similarly, the position of the main frame 11 in the horizontal direction can be adjusted by simultaneously turning two bolts distributed along the horizontal direction, making the entire adjustment operation simple and easy, and improving adjustment efficiency. It should be noted that when the main frame 11 moves in the vertical and horizontal directions, the turning directions of the two bolts in the corresponding directions are opposite. Of course, the adjusting rod 13 can also be a manual or electric telescopic rod, as long as it can adjust the position of the main frame 11 in the vertical and horizontal directions; no specific limitation is made here.

[0055] To improve the adjustment efficiency of the telescope's adjustment mechanism, the mechanism also includes a reference card with a crosshair at its center. The first joint cavity has a stepped surface extending circumferentially. The adjusting rod 13 adjusts the position of the main frame 11 to align the center of the crosshair with the centerline of the ship's shafting. Using the reference card as the adjustment reference, when the center of the crosshair on the reference card coincides with the centerline of the ship's shafting, the position of the main frame 11 is correctly adjusted. After the joint ball joint 2 is installed in the socket, its center coincides with the centerline of the ship's shafting, achieving precise installation of the joint ball joint 2.

[0056] Specifically, before installing the articulated ball joint 2, the reference card is first installed on the stepped surface of the first joint cavity. By turning the four adjusting rods 13, the position of the reference card in the vertical and horizontal directions is adjusted until the center point of the crosshairs on the reference card coincides with the center point of the crosshairs on the marker at the tail end of the nacelle. At this point, the adjusting rods 13 stop rotating and fix the main frame 11 in the inner hole, and the main frame 11 is adjusted into place. Then, the reference card is removed, the articulated ball joint 2 is installed in the first joint cavity, and finally the seat ring 12 is installed, thus achieving precise installation of the articulated ball joint 2.

[0057] like Figure 1 and Figure 3As shown, the adjustment assembly 4 includes a lifting assembly 41 and a translation assembly 42. The lifting assembly 41 includes a base plate 411 and a top plate 412. The base plate 411 is mounted on the rear bracket 3, and the top plate 412 is vertically and vertically mounted on the base plate 411. The translation assembly 42 includes a slide table 421 and a slider 422. The slide table 421 is mounted on the top plate 412, and the slider 422 is connected to the rear end of the telescope 10 and is slidably mounted on the slide table 421 in the left-right direction.

[0058] Specifically, the translation component 42 also includes a lead screw 423 and a knob 424. The lead screw 423 extends in the left-right direction and is rotatably mounted within the slide table 421. The slider 422 is rolledly connected to the lead screw 423 via ball bearings. A knob 424 is mounted on the end of the lead screw 423 extending out of the slide table 421. By turning the knob 424, the slider 422 can be moved along the axial direction of the lead screw 423, thereby causing the rear end of the telescope 10 to shift in the left-right direction. Since the translation component 42 uses a ball screw for transmission, its left-right displacement accuracy can reach 0.01mm, greatly improving the adjustment accuracy. Moreover, manual adjustment is simple and efficient, and it does not require the use of motors or other driving components, simplifying the structure of the translation component 42 and reducing the cost of the telescope's adjustment mechanism.

[0059] It should be noted that the lifting assembly 41 also uses a ball screw drive to drive the top plate 412 to move up and down in the vertical direction, thereby adjusting the position of the telescope 10 in the vertical direction, further improving the adjustment accuracy and efficiency, and reducing costs.

[0060] like Figure 3 As shown, the lifting assembly 41 also includes a scissor frame 413, which can be unfolded or folded in the vertical direction. The two ends of the scissor frame 413 in the vertical direction are connected to the top plate 412 and the bottom plate 411, respectively. When the top plate 412 rises in the vertical direction, the scissor frame 413 is in an extended state. When the top plate 412 descends in the vertical direction, the scissor frame 413 is in a folded state. By setting the scissor frame 413 to achieve a movable connection between the top plate 412 and the bottom plate 411, not only can the fixation of both be more reliable and stable, but it can also ensure that the lifting assembly 41 can adjust the position of the rear end of the telescope 10. In addition, the scissor frame 413 has the advantages of simple structure and high reliability.

[0061] like Figure 1 and Figure 4As shown, the adjustment mechanism of the telescope also includes a clamp assembly 5, which includes a first clamp 51, a second clamp 52, and a locking member 53. The first clamp 51 is mounted on the slider 422, and the second clamp 52 is movably mounted on the first clamp 51, enabling the first clamp 51 to jointly clamp the rear end of the telescope 10. The locking member 53 can lock or unlock the first clamp 51 and the second clamp 52. The clamp assembly 5 can stably and reliably fix the rear end of the telescope 10 to the slider 421. In this embodiment, the locking member 53 is an L-shaped rotary adjustable bolt, allowing the operator to grasp the handle of the L-shaped rotary adjustable bolt and rotate it, making locking and unlocking operations simpler. The first clamp 51 and the second clamp 52 are detachably connected by the L-shaped rotary adjustable bolt, facilitating quick locking and unlocking of the first clamp 51 and the second clamp 52.

[0062] Preferably, the adjustment mechanism of the telescope further includes a pad 6, which is mounted on the rear bracket 3. The base plate 411 is detachably mounted on the pad 6 by fastening bolts. The pad 6 not only facilitates the installation of the adjustment component 4 and the rear bracket 3, but also increases the height of the adjustment component 4 in the vertical direction, thereby shortening the vertical adjustment range of the rear end of the telescope 10.

[0063] Furthermore, in this embodiment, both the support assembly and the adjustment assembly 4 are made of aluminum alloy, which ensures that the support assembly and the adjustment assembly 4 have sufficient structural strength and stability, while also making the support assembly and the adjustment assembly 4 lighter in weight, reducing the total weight of the telescope's adjustment mechanism, and facilitating the handling and use of the telescope's adjustment mechanism.

[0064] The above embodiments merely illustrate the basic principles and characteristics of the present invention. The present invention is not limited to the above embodiments. Various changes and modifications can be made to the present invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. An adjustment mechanism for an ophthalmoscope, characterized in that The application relates to a support assembly for an optical sight, comprising a front seat frame (1), a joint ball head (2) and a rear bracket (3), the front seat frame (1) being connected with the rear bracket (3), the joint ball head (2) being rotatably arranged in the front seat frame (1), a front end of the optical sight (10) being fixedly arranged in a through hole of the joint ball head (2), the front seat frame (1) being arranged in an inner hole of a stern tube (20) of a ship and being adjustable in position along an up-down direction and a left-right direction relative to the inner hole, and an adjusting assembly (4) being arranged on the rear bracket (3) and being in transmission connection with a rear end of the optical sight (10) so as to adjust the position of the rear end of the optical sight (10) along the up-down direction and the left-right direction, respectively, and the axis of the front end of the optical sight (10) not being deviated when the adjusting assembly (4) adjusts the rear end of the optical sight (10). The front seat frame (1) comprises a main body frame (11) provided with a first joint cavity and a seat ring (12) provided with a second joint cavity, the main body frame (11) being connected with the rear bracket (3) and extending rearward along a front-rear direction, the seat ring (12) being arranged on the main body frame (11) so as to form a ball socket by the first joint cavity and the second joint cavity, and the joint ball head (2) being rotatably arranged in the ball socket, and an adjusting rod (13) being arranged on the main body frame (1) and being capable of abutting against or being connected to the inner hole of the stern tube (20), the adjusting rod (13) being configured to adjust the position of the main body frame (11) in the inner hole along the up-down direction and the left-right direction, respectively. The adjusting mechanism of the optical sight further comprises a reference card provided with a cross line in the center, the first joint cavity being provided with a stepped surface extending along the circumference of the first joint cavity, the reference card being detachably arranged on the stepped surface, and the adjusting rod (13) being configured to make the center of the cross line coincide with the center line of the shafting of the ship by adjusting the position of the main body frame (11). The adjusting rod (13) is a bolt, one end of the bolt being in threaded connection with the main body frame (11) and the other end of the bolt abutting against the inner wall of the inner hole. The adjusting assembly (4) comprises a lifting assembly (41) and a translation assembly (42), the lifting assembly (41) comprising a bottom plate (411) arranged on the rear bracket (3) and a top plate (412) being liftable along the up-down direction relative to the bottom plate (411), and the translation assembly (42) comprising a sliding table (421) arranged on the top plate (412) and a sliding block (422) in transmission connection with the rear end of the optical sight (10) and being slidably arranged on the sliding table (421) along the left-right direction. The translation assembly (42) further comprises ​ 2. An adjusting mechanism for an ophthalmoscope according to claim 1, characterized in that ​ ​ 3. An adjusting mechanism for an ophthalmoscope according to claim 1, wherein ​ 4. The adjustment mechanism of an ophthalmoscope according to claim 1, characterized in that ​ ​ ​ 5. An adjusting mechanism for an ophthalmoscope according to claim 4, wherein ​ A screw rod (423) extending along the left-right direction and rotatably arranged in the sliding table (421), and a knob (424) arranged on one end of the screw rod (423) extending out of the sliding table (421).

6. An adjusting mechanism for an ophthalmoscope according to claim 4, wherein The lifting assembly (41) further comprises: A scissor frame (413) capable of unfolding or folding along the up-down direction, and two ends of the scissor frame (413) along the up-down direction are connected with the top plate (412) and the bottom plate (411) respectively.

7. The adjustment mechanism of an ophthalmoscope according to claim 4, characterized in that The adjusting mechanism of the ophthalmoscope further comprises a clamp assembly (5), the clamp assembly (5) comprises: A first clamp (51) arranged on the sliding block (422), a second clamp (52) movably arranged on the first clamp (51) and capable of jointly clamping the rear end of the ophthalmoscope (10) with the first clamp (51); and A locking member (53) configured to lock or unlock the first clamp (51) and the second clamp (52).

8. An adjusting mechanism for an ophthalmoscope according to any one of claims 1 to 7, characterised in that, The materials of the support assembly and the adjusting assembly (4) are both aluminum alloy.

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