Sliding adjusting mechanism, cross shaft and microscope swing arm support

Abstract

The utility model belongs to the technical field of precise instrument adjustment, and particularly relates to a sliding adjusting mechanism, a cross shaft and a microscope swing arm support. Comprising supporting columns; the adjusting seat is slidably connected with the supporting column, a sliding channel is formed in the adjusting seat in a penetrating mode, the supporting column penetrates through the sliding channel, and an annular rubber ring mounting position is arranged on the inner side wall of the sliding channel; the rubber ring is mounted at the rubber ring mounting position; the locking ring is movably arranged on the supporting column in a sleeving mode and is in threaded connection with the adjusting base, when the locking ring is screwed, the locking ring extrudes the rubber ring, the rubber ring deforms, and an interference fit state is formed between the inner side wall of the rubber ring installation position and the outer side wall of the supporting column, so that the adjusting base and the supporting column are relatively fixed. On the premise that the structure compactness is guaranteed, a force conduction path is optimized through surface contact locking so as to reduce the stress concentration effect, the microscope swing arm support has high locking stability and operation convenience, and the applicability of the microscope swing arm support in the high-end fields of precision manufacturing, biomedicine and the like is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the precise instrument adjusting technical field especially, it relates to a kind of sliding adjustment mechanism, cross shaft and microscope swing arm support. BACKGROUND

[0002] In the precise instrument adjusting technical field, especially in the application scene of microscope swing arm support, the locking stability of multi-degree-of-freedom adjusting mechanism directly affects the operation precision and equipment reliability. The traditional sliding adjusting mechanism generally adopts the mechanical structure of screw knob and limiting seat cooperation, and the vertical extrusion of supporting column is implemented by the end of knob screw rod to realize position fixing. This point contact locking mode can meet the basic positioning requirement in initial use stage, but gradually exposes significant defects in long-term high-frequency adjustment or working scene of bearing lateral load: the line contact or point contact pressure concentration formed by screw rod end and column surface leads to micro deformation of metal material under continuous stress, finally causes locking force attenuation; At the same time, the small wear particles of contact surface can accelerate the formation of mechanical gap, so that the precise load such as microscope appears unexpected position deviation under the action of gravity or external force. This displacement deviation may cause imaging deviation of several microns in microscopic observation scene, which directly affects the accuracy of detection result.

[0003] The limitation of prior art scheme is particularly prominent in special application scene. For example, in the field of industrial detection, the operator needs to keep the microscope at a specific angle for a long time to review the defects of semiconductor chips. In the medical surgery scene, the surgeon relies on the stability of the support to maintain the surgical field of the endoscope. Under the condition of continuous vibration or temperature change, the locking reliability of the traditional structure decreases exponentially, forcing the user to tighten the knob frequently, which affects the coherence of work process and also has the risk of excessive tightening leading to component damage. In addition, the traditional design also has room for improvement in terms of adjustment convenience. The linear stroke of the threaded knob and the locking torque are nonlinearly related, and the operator cannot accurately control the locking degree through the sense of touch, which is particularly clumsy when quickly switching between work postures.

[0004] Therefore, there is an urgent need for a sliding adjustment mechanism, cross shaft and microscope swing arm support with high locking stability and operation convenience. UTILITY MODEL CONTENTS

[0005] The utility model aims at the deficiencies of prior art, and provides a kind of sliding adjustment mechanism, cross shaft and microscope swing arm support, under the premise of guaranteeing compact structure, the stress concentration effect is reduced by optimizing force transmission path through surface contact locking, with high locking stability and operation convenience, improve the applicability of microscope swing arm support in precise manufacturing, biomedical and other high-end fields.

[0006] In order to achieve the above object, the utility model adopts the following technical scheme:

[0007] A sliding adjustment mechanism, comprising:

[0008] A support column;

[0009] An adjustment seat in sliding connection with the support column, a sliding channel being provided through the adjustment seat, the support column passing through the sliding channel, and an annular rubber ring mounting position being provided on the inner side wall of the sliding channel;

[0010] A rubber ring mounted at the rubber ring mounting position;

[0011] A locking ring movably sleeved on the support column and in threaded connection with the adjustment seat, the locking ring extruding the rubber ring when being screwed in a preset direction, the rubber ring being deformed and forming an interference fit state between the inner side wall of the rubber ring mounting position and the outer side wall of the support column, so that the adjustment seat is relatively fixed with the support column.

[0012] Further, the rubber ring mounting position is formed with a stepped portion on the inner side wall of the sliding channel, one end of the locking ring extending into the sliding channel and abutting and extruding the end face of the rubber ring, so that the rubber ring forms an interference fit state between the stepped portion and the locking ring.

[0013] Further, the locking ring comprises a rotating cap and a rotating rod, one end of the rotating rod extending into the sliding channel and abutting and extruding the end face of the rubber ring.

[0014] Further, a first internal thread is provided between one open end of the sliding channel and the rubber ring mounting position, and a first external thread is provided on the rotating rod and matched with the first internal thread.

[0015] Optionally, the rubber ring mounting position is close to one open end of the sliding channel, the side wall of the rubber ring mounting position is formed with a plurality of clamping jaws, the clamping jaws are arranged around and spaced, and the locking ring extrudes the clamping jaws inward to indirectly extrude the rubber ring.

[0016] Further, the adjustment seat comprises an adjustment seat body and a clamping ring, the clamping ring comprises a ring portion and a jaw portion, the ring portion is mounted into the adjustment seat body, the jaw portion is located outside the adjustment seat body, and the rubber ring mounting position is provided on the inner side of the clamping ring.

[0017] Further, the second outer thread is arranged on the adjusting seat body near the clamping jaw ring, the second inner thread is arranged in the locking ring and matched with the second outer thread, and the converging end is formed at the end away from the adjusting seat body, the locking ring is sleeved on the jaw part and screwed on the second outer thread, and the converging end extrudes the clamping jaw inward.

[0018] Further, the free end of the clamping jaw is formed with a limiting protrusion inward, the rubber ring is provided with a limiting gap outward, and the clamping jaw is clamped into the limiting gap when being extruded inward.

[0019] The utility model discloses still provide a kind of cross shaft, including the sliding adjusting mechanism of the one described, the sliding channel on the adjusting seat includes vertical channel and horizontal channel, the vertical channel and the horizontal channel are provided with the rubber ring and the locking ring, the support column passes through the vertical channel, and the horizontal channel is movably connected with horizontal swing arm.

[0020] The utility model discloses still provide a kind of microscope swing arm support, including the cross shaft described, the support column bottom is equipped with base, and the cross shaft is equipped with microscope connecting piece.

[0021] The utility model has the advantages of:

[0022] The utility model discloses a kind of cross shafts, including the sliding adjusting mechanism of the one described, the sliding channel on the adjusting seat includes vertical channel and horizontal channel, the vertical channel and the horizontal channel are provided with the rubber ring and the locking ring, the support column passes through the vertical channel, and the horizontal channel is movably connected with horizontal swing arm. BRIEF DESCRIPTION OF DRAWINGS

[0023] Attachment Figure 1 It is the explosion structure schematic view of the sliding adjusting mechanism of the embodiment 1 of the utility model;

[0024] Attachment Figure 2 It is the structure schematic view of the adjusting seat of the embodiment 1 of the utility model;

[0025] Attachment Figure 3 It is the structure schematic view of the sliding adjusting mechanism of the embodiment 1 of the utility model;

[0026] Attachment Figure 4It is the explosion structure schematic view of the sliding adjustment mechanism of the embodiment 2 of the utility model;

[0027] Attached Figure 5 It is the structure schematic view of the clamping jaw ring of the embodiment 2 of the utility model;

[0028] Attached Figure 6 It is the structure schematic view of the locking ring of the embodiment 2 of the utility model;

[0029] Attached Figure 7 It is the structure schematic view of the sliding adjustment mechanism of the embodiment 2 of the utility model;

[0030] Attached Figure 8 It is the structure schematic view of the microscope swing arm support of the embodiment 4 of the utility model;

[0031] In the drawing, 1 is a support column, 2 is an adjustment seat, 210 is a sliding channel, 211 is a vertical channel, 212 is a horizontal channel, 220 is a rubber ring installation position, 230 is a step part, 240 is a first internal thread, 250 is an adjustment seat body, 251 is a second external thread, 260 is a clamping jaw ring, 261 is a ring part, 262 is a jaw part, 2621 is a clamping jaw, 2622 is a limiting protruding block, 3 is a rubber ring, 310 is a limiting notch, 4 is a locking ring, 410 is a screw cap, 420 is a rotating rod, 421 is a first external thread, 430 is a second internal thread, 440 is a folding end, 5 is a horizontal swing arm, 6 is a base, and 7 is a microscope connecting piece. DETAILED DESCRIPTION

[0032] The embodiments of the utility model are described in detail below, and examples of the embodiments are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are intended to explain the utility model, and cannot be understood as a limitation on the utility model.

[0033] In the description of the utility model, it is understood that the orientation or position relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as a limitation on the utility model.

[0034] In addition, the terms "first", "second", "third", "fourth", "fifth", "sixth", "seventh" and "eighth" are only used for descriptive purpose and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second", "third", "fourth", "fifth", "sixth", "seventh" and "eighth" can explicitly or implicitly include one or more of the features. In the description of the utility model, the meaning of "multiple" is two or more than two, unless otherwise explicitly specified and limited.

[0035] In the embodiments of the utility model, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements or the interaction relationship between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0036] Referring to the drawings Figure 1 to the drawings Figure 8 , the drawings illustrate a specific embodiment of a sliding adjustment mechanism, a cross shaft and a microscope swing arm support provided by the utility model. Embodiment 1:

[0037] Referring to the drawings Figure 1 to the drawings Figure 3 , the drawings illustrate a specific embodiment of a sliding adjustment mechanism, a cross shaft and a microscope swing arm support provided by the utility model.

[0038] Support column 1;

[0039] Adjusting seat 2 in sliding connection with support column 1, sliding channel 210 is formed through adjusting seat 2, support column 1 passes through sliding channel 210, and the inner side wall of sliding channel 210 is provided with annular rubber ring mounting position 220;

[0040] Rubber ring 3 mounted at rubber ring mounting position 220;

[0041] Locking ring 4 movably sleeved on support column 1 and in screw connection with adjusting seat 2, when locking ring 4 is screwed in a preset direction, locking ring 4 will extrude rubber ring 3, rubber ring 3 is deformed and forms an interference fit state between the inner side wall of rubber ring mounting position 220 and the outer side wall of support column 1, so that adjusting seat 2 is relatively fixed with support column 1.

[0042] Referring to the drawings Figure 1 and the drawings Figure 2In the above embodiment, the inner diameter of the rubber ring installation position 220 in the sliding channel 210 is larger than the inner diameter of the sliding channel 210, which should be equal to or slightly larger than the diameter of the support column 1, so that the support column 1 installed in the sliding channel 210 can slide freely. The inner diameter of the rubber ring 3 is adapted to the diameter of the support column 1, and the outer diameter of the rubber ring 3 is adapted to the inner diameter of the rubber ring installation position 220, so that the rubber ring 3 is interposed between the side wall of the rubber ring installation position 220 and the outer side wall of the support column 1. When the locking ring 4 is in the unlocked state, the rubber ring 3 and the adjusting seat 2 can slide relative to the support column 1; when the locking ring 4 is tightened in the clockwise direction, the locking ring 4 extrudes the rubber ring 3, the rubber ring 3 deforms and forms an interference fit between the inner side wall of the rubber ring installation position 220 and the outer side wall of the support column 1, realizing the face contact locking between the adjusting seat 2 and the support column 1, significantly improving the locking stability, and effectively preventing the position deviation caused by point contact stress concentration after long-term use.

[0043] Referring to the drawings Figure 2 In the embodiment, the rubber ring installation position 220 is formed with a stepped portion 230 on the inner side wall of the sliding channel 210, one end of the locking ring 4 extends into the sliding channel 210 to abut and extrude the end face of the rubber ring 3, so that the rubber ring 3 forms an interference fit between the stepped portion 230 and the locking ring 4. In the embodiment, the support column 1 is vertically arranged, the adjusting seat 2 can slide up and down along the support column 1, the rubber ring 3 is installed in the sliding channel 210 from top to bottom and falls into the rubber ring installation position 220, the lower end face of the rubber ring 3 abuts the stepped portion 230, and the locking ring 4 is also sleeved on the support column 1 and installed from top to bottom to the upper end opening of the sliding channel 210, and the lower end of the locking ring 4 extends into the sliding channel 210. When the locking ring 4 extrudes the upper end face of the rubber ring 3 from top to bottom, the rubber ring 3 is uniformly expanded in the axial direction, so that the rubber ring 3 is interfered between the stepped portion 230 and the locking ring 4 and between the inner side wall of the rubber ring installation position 220 and the outer side wall of the support column 1, thereby enhancing the friction between the rubber ring 3 and the support column 1 and avoiding the local crushing phenomenon easily caused by traditional point contact locking.

[0044] Referring to the drawings Figure 2 and the drawings Figure 3 In the above embodiment, the locking ring 4 includes a rotating cap 410 and a rotating rod 420, and the end of the rotating rod 420 away from the rotating cap 410 extends into the sliding channel 210 to abut and extrude the end face of the rubber ring 3. In the embodiment, the locking ring 4 is provided with a through hole axially penetrating the rotating cap 410 and the rotating rod 420, which is used to pass through the support column 1, the rotating cap 410 provides an operating force application surface, and the end of the rotating rod 420 can accurately transmit extrusion pressure to the end face of the rubber ring 3, realizing accurate control of locking torque and convenient operation.

[0045] Referring to the drawings Figure 1 and the drawingsFigure 3 In the above embodiment, a first internal thread 240 is arranged between one open end of the sliding channel 210 and the rubber ring mounting position 220, and a first external thread 421 is arranged on the rotating rod 420 to match the first internal thread 240. In the embodiment, the self-locking feature of the thread can prevent the locking ring 4 from being loosened accidentally, ensure the long-term reliability of the locking state, and also realize the hiding of the thread, making the sliding adjustment mechanism more beautiful. Embodiment 2:

[0046] Referring to the accompanying Figure 4 to the accompanying Figure 7 , the embodiment provides another sliding adjustment mechanism, which comprises:

[0047] a support column 1;

[0048] an adjustment seat 2 in sliding connection with the support column 1, a sliding channel 210 being arranged through the adjustment seat 2, the support column 1 passing through the sliding channel 210, and an annular rubber ring mounting position 220 being arranged on the inner side wall of the sliding channel 210;

[0049] a rubber ring 3 mounted at the rubber ring mounting position 220;

[0050] a locking ring 4 movably sleeved on the support column 1 and in threaded connection with the adjustment seat 2, when the locking ring 4 is screwed in a preset direction, the locking ring 4 will extrude the rubber ring 3, the rubber ring 3 will be deformed and form an interference fit state between the inner side wall of the rubber ring mounting position 220 and the outer side wall of the support column 1, so that the adjustment seat 2 is relatively fixed with the support column 1;

[0051] In the embodiment, the rubber ring mounting position 220 is close to one open end of the sliding channel 210, the side wall of the rubber ring mounting position 220 is formed with a plurality of clamping jaws 2621, the clamping jaws 2621 are arranged around and at intervals, and the locking ring 4 extrudes the clamping jaws 2621 to move inward to indirectly extrude the rubber ring 3.

[0052] Referring to the accompanying Figure 7 In the above embodiment, the locking ring 4 is in a bottle cap shape, a through hole is arranged at the middle position for passing through the support column 1, and in the process of rotating the locking ring 4, the locking ring 4 gradually extrudes the clamping jaws 2621 to make the ends of the clamping jaws 2621 radially contract, indirectly and uniformly press the rubber ring 3, avoid stress concentration caused by direct extrusion, and prolong the service life of the rubber ring 3.

[0053] Referring to the accompanying Figure 5 and the accompanying Figure 6In the above embodiment, the adjusting seat 2 comprises an adjusting seat body 250 and a clamping jaw ring 260, the clamping jaw ring 260 comprises a ring part 261 and a jaw part 262, the ring part 261 is installed into the adjusting seat body 250, the jaw part 262 is located outside the adjusting seat body 250, and the rubber ring mounting position 220 is arranged on the inner side of the clamping jaw ring 260. In the embodiment, the support column 1 is vertically arranged, the adjusting seat 2 can slide up and down along the support column 1, the adjusting seat body 250 is provided with a stepped structure similar to that in the embodiment 1, the stepped structure is used for mounting the ring part 261 of the clamping jaw ring 260, and the jaw part 262 of the clamping jaw ring 260 is upward, the jaw part 262 of the clamping jaw ring 260 is surrounded by a plurality of clamping jaws 2621 on the ring part 261 and is arranged at intervals. The rubber ring mounting position 220 is arranged on the inner side of the clamping jaw ring 260, specifically, the inner side of the jaw part 262, in the process of rotating the locking ring 4, the jaw part 262 is radially contracted to indirectly and uniformly press the rubber ring 3, so that the relative locking between the adjusting seat 2 and the support column 1 is realized. In the embodiment, the adjusting seat 2 is designed as a combined structure of the adjusting seat body 250 and the clamping jaw ring 260, so that the clamping jaw ring 260 can be independently replaced, the quick adaptation of different specifications of the clamping jaw ring 260 is realized, the maintenance and upgrading are facilitated, and the overall replacement cost is reduced.

[0054] Referring to the drawings Figure 5 and the drawings Figure 6 In the above embodiment, the second outer thread 251 is arranged at the position close to the clamping jaw ring 260 of the adjusting seat body 250, the second inner thread 430 matched with the second outer thread 251 is arranged in the locking ring 4 and forms a converging end 440 at the end away from the adjusting seat body 250, the locking ring 4 is sleeved on the jaw part 262 and is screwed on the second outer thread 251, and the converging end 440 extrudes the clamping jaws 2621 to be close to the inside. In the embodiment, the locking ring 4 is sleeved on the jaw part 262 and is screwed on the second outer thread 251, so that the clamping jaw ring 260 is limited in the locking ring 4 and the adjusting seat body 250, in the screwing process, the locking ring 4 gradually approaches the adjusting seat body 250, and at the same time, the converging end 440 also gradually approaches and extrudes the clamping jaws 2621, so that the clamping jaws 2621 are gradually and uniformly contracted and locked in the locking process.

[0055] Referring to the drawings Figure 4 and the drawings Figure 5 In the above embodiment, the free end of the clamping jaw 2621 forms a limiting protrusion 2622 inwardly, the rubber ring 3 is provided with a limiting notch 310 on the outer side, and the clamping jaw 2621 is clamped into the limiting notch 310 when being close to the inside. In the embodiment, the limiting notch 310 on the outer side of the rubber ring 3 is annular structure, which prevents the rubber ring 3 from being upwardly and downwardly deviated in the locking process. Further, the clamping jaw ring 260 is provided with an axial limiting strip on the outer side, which is clamped into the adjusting seat body 250, so as to avoid the rubber ring 3 from being twisted in the use process. Embodiment 3

[0056] Referring to the drawings Figure 8 The embodiment provides a cross shaft, which comprises the sliding adjustment mechanism in one of embodiments 1 or 2, or a combination of embodiments 1 and 2. Specifically, the sliding channel 210 on the adjustment seat 2 comprises a vertical channel 211 and a horizontal channel 212, both of which are provided with the rubber ring 3 and the locking ring 4, the support column 1 passes through the vertical channel 211, and the horizontal channel 212 is movably connected with the horizontal swing arm 5. In the embodiment, the double-channel independent locking adjustment is realized by respectively arranging the sliding adjustment mechanisms in the vertical channel 211 and the horizontal channel 212 of the cross shaft, the multi-dimensional space positioning requirement of the microscope swing arm support is met, and the applicability of the equipment is improved. Embodiment 4

[0057] Referring to the drawings Figure 8 The embodiment provides a microscope swing arm support, which comprises the cross shaft in embodiment 3, the bottom of the support column 1 is provided with the base 6, and the cross shaft is provided with the microscope connecting piece 7. In the embodiment, the stable multi-angle adjustment of the microscope is realized by applying the cross shaft to the microscope swing arm support and configuring the base 6 and the microscope connecting piece 7, the problem that the traditional support is prone to sliding after long-term use is solved, and the microscope swing arm support is suitable for high-stability scenes such as precision detection and surgical assistance.

[0058] In summary, the embodiment provides a sliding adjustment mechanism, a cross shaft and a microscope swing arm support. The rubber ring 3 is arranged to cooperate with the locking ring 4 to form an interference fit by extrusion, surface contact locking is realized, and the locking stability is improved. The first internal thread 240 is arranged on the inner wall of the sliding channel 210 and cooperates with the external thread of the rotating rod 420, the thread is hidden, and the sliding adjustment mechanism is more beautiful. The clamping jaw 2621 is arranged, the clamping jaw 2621 is extruded inward by the locking ring 4 to extrude the rubber ring 3, stress concentration caused by direct extrusion is avoided, and the service life of the rubber ring 3 is prolonged. The limiting protrusion 2622 is arranged at the free end of the clamping jaw 2621 and cooperates with the limiting gap 310 on the outer side of the rubber ring 3, and the rubber ring 3 is prevented from being twisted and deviated during the locking process. The embodiment optimizes the force transmission path to reduce the stress concentration effect under the premise of ensuring compactness, has high locking stability and convenient operation, improves the applicability of the microscope swing arm support in high-end fields such as precision manufacturing and biomedicine, and has high locking stability and convenient operation.

[0059] The above-described embodiments are only one of the more preferred specific ways of the utility model, and the usual changes and replacements made by the technicians in the technical field within the scope of the technical scheme of the utility model should be included in the protection scope of the utility model.

Claims

1. A slide adjustment mechanism characterized by, The utility model relates to a support column (1) is provided with, and the support column (1) is connected with the adjusting seat (2) of sliding, the adjusting seat (2) is provided with the sliding channel (210) on the inside wall of the sliding channel (210) of the support column (1) through, the inside wall of the sliding channel (210) is equipped with the rubber ring installation site (220) of annular, the rubber ring (3) of installing in the rubber ring installation site (220) is provided with, the lock ring (4) of the movable sleeve of being set up on the support column (1) is connected with the adjusting seat (2) threadedly, when the lock ring (4) is twisted to the preset direction, the lock ring (4) will extrude the rubber ring (3), and the rubber ring (3) occurs deformation and is formed between the inside wall of the rubber ring installation site (220) and the outside wall of the support column (1) interference fit state, to make the adjusting seat (2) with the support column (1) relative fixation. The inside wall of the sliding channel (210) is formed with the step portion (230) of the rubber ring installation site (220), one end of the lock ring (4) is inserted into the sliding channel (210) and is abutted and extruded the end face of the rubber ring (3), so that the rubber ring (3) is formed between the step portion (230) and the lock ring (4) interference fit state. The lock ring (4) includes the screw cap (410) and the rotating rod (420), and one end of the rotating rod (420) away from the screw cap (410) is inserted into the sliding channel (210) and is abutted and extruded the end face of the rubber ring (3). One opening end of the sliding channel (210) and the rubber ring installation site (220) are provided with the first internal thread (240), and the rotating rod (420) is provided with the first external thread (421) matched with the first internal thread (240). The rubber ring installation site (220) is close to one opening end of the sliding channel (210), and the sidewall of the rubber ring installation site (220) is formed with a plurality of clamping claws (2621), the clamping claws (2621) are annularly and spacedly arranged, and the lock ring (4) extrudes the clamping claws (2621) to inwards close to each other to indirectly extrude the rubber ring (3).

2. A slide adjustment mechanism according to claim 1, wherein The adjusting seat (2) includes an adjusting seat body (250) and a clamping ring (260), the clamping ring (260) includes a ring portion (261) and a claw portion (262), the ring portion (261) is installed into the adjusting seat body (250), the claw portion (262) is located outside the adjusting seat body (250), and the rubber ring installation site (220) is located inside the clamping ring (260).

3. A slide adjustment mechanism according to claim 2, wherein ​ 4. A slide adjustment mechanism according to claim 3, wherein ​ 5. A slide adjustment mechanism as claimed in claim 1, wherein, ​ 6. A slide adjustment mechanism according to claim 5, wherein ​ 7. A slide adjustment mechanism according to claim 6, wherein The adjusting seat body (250) is provided with a second external thread (251) near the position of the clamping jaw ring (260), the locking ring (4) is internally provided with a second internal thread (430) matched with the second external thread (251) and forms a converging end (440) at the end away from the adjusting seat body (250), the locking ring (4) is sleeved on the jaw part (262) and screwed on the second external thread (251), and the converging end (440) extrudes the clamping jaw (2621) to converge inward.

8. A slide adjustment mechanism according to claim 7, wherein The free end of the clamping jaw (2621) is formed with a limiting protrusion (2622) inward, and the outer side of the rubber ring (3) is provided with a limiting gap (310), and the clamping jaw (2621) is clamped into the limiting gap (310) when converging inward.

9. A Oldham coupling, characterized in that The sliding adjusting mechanism comprises the support column (1), the adjusting seat (2), the rubber ring (3), the locking ring (4) and the cross shaft (5), wherein the adjusting seat (2) is provided with the sliding channel (210), the sliding channel (210) comprises a vertical channel (211) and a horizontal channel (212), the vertical channel (211) and the horizontal channel (212) are provided with the rubber ring (3) and the locking ring (4), the support column (1) passes through the vertical channel (211), and the horizontal channel (212) is movably connected with the horizontal swing arm (5).

10. A microscope swing arm support, characterized by, The cross shaft comprises the support column (1), the adjusting seat (2), the rubber ring (3), the locking ring (4), the horizontal swing arm (5) and the base (6), wherein the base (6) is mounted at the bottom of the support column (1), and the microscope connecting piece (7) is mounted on the cross shaft.

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