Telescopic rotating shaft cantilever mechanism

Abstract

The utility model discloses a telescopic rotating shaft cantilever mechanism, which relates to the technical field of medical instruments and comprises a hollow rectangular frame plate, and an expansion unit and an assembly unit which are arranged on the rectangular frame plate, each expansion unit comprises a two-way screw rod, a bearing strip plate and a supporting vertical plate, and the two-way screw rod is movably arranged on the inner wall of one end of the rectangular frame plate; the assembling unit comprises bearing discs, an assembling cylinder, an adjusting screw rod and an abutting rubber block. The two bearing discs are fixedly arranged on the end faces of the two supporting vertical plates correspondingly. According to the utility model, the two bearing strip plates in threaded connection with the two-way screw rod are stressed to relatively move on the inner side of the rectangular frame plate, the two supporting vertical plates can synchronously enter and exit from the rectangular frame plate through the movable notches, and the two supporting vertical plates can be supported by adjusting the exposed areas of the two supporting vertical plates on the rectangular frame plate; and the relative height of the rotating shaft and the cantilever assembled on the two supporting vertical plates can be flexibly, simply and conveniently adjusted.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, in particular to a telescopic rotating shaft cantilever mechanism. Background Art

[0002] Medical pendants are commonly used equipment in medical facilities. They can easily lift medical equipment and items, allowing doctors and nurses to operate and use them more conveniently. In operating rooms, medical pendants are usually used to hang surgical lights, surgical instruments, life support equipment, etc., while in wards, they are often used to hang infusion bottles, ventilators, etc. Existing medical pendants usually include a rotating shaft cantilever mechanism, which includes a cantilever and a rotating shaft. The cantilever and the rotating shaft are connected, and the position of the rotating shaft relative to the cantilever is fixed. The relative height cannot be adjusted telescopically, and cannot meet some usage scenarios that require adjustment of the relative height of the rotating shaft and the cantilever.

[0003] The publication (announcement) number is CN220530290U, which discloses a retractable rotating shaft cantilever mechanism, which includes a rotating shaft assembly, a cantilever and a telescopic adjustment assembly. One end of the telescopic adjustment assembly is connected to the cantilever, and the other end of the telescopic adjustment assembly is connected to the rotating shaft assembly. When the telescopic adjustment assembly is telescopically adjusted, the relative height of the rotating shaft assembly and the cantilever changes, thereby realizing the free adjustment of the relative height of the rotating shaft and the cantilever of the rotating shaft cantilever mechanism, and expanding the scope of application of medical pendants.

[0004] Although the above scheme can freely adjust the relative height of the rotating shaft and the cantilever of the rotating shaft cantilever mechanism, the relative height adjustment requires multiple operations one by one, which is tedious and laborious, and the adjustment components are difficult to assemble on the rotating shaft and the cantilever. Therefore, we propose a retractable rotating shaft cantilever mechanism. Utility Model Content

[0005] The main purpose of the utility model is to provide a retractable rotating shaft cantilever mechanism. By setting up an expansion unit and an assembly unit, it solves the problem that the relative height adjustment of the rotating shaft and the cantilever requires tedious and laborious operation of multiple points one by one, and the adjustment components are troublesome to assemble on the rotating shaft and the cantilever.

[0006] In order to solve the above technical problems, the present invention is realized by the following technical solutions: a retractable rotating shaft cantilever mechanism, comprising a rectangular frame plate with a hollow interior, and further comprising: an expansion unit and an assembly unit arranged on the rectangular frame plate;

[0007] The expansion unit includes a bidirectional screw, a bearing strip and a supporting vertical plate, the bidirectional screw being movably arranged on the inner wall of one end of the rectangular frame plate, the bearing strip being provided with two and respectively corresponding to the positive and negative threads symmetrically arranged on the bidirectional screw, a movable notch being respectively opened at the center of the opposite two side surfaces of the rectangular frame plate, the two supporting vertical plates being respectively fixedly arranged at the center of the opposite two side surfaces of the two bearing strips, and the supporting vertical plates extending to the outside of the rectangular frame plate through the movable notch;

[0008] The assembly unit includes a bearing disc, a connecting cylinder, an adjusting screw and an abutting rubber block. The two bearing discs are respectively fixedly arranged on the end faces of the two supporting vertical plates, and the two connecting cylinders are respectively fixedly arranged on the two bearing discs. The adjusting screw is threadedly assembled on the outer circumferential surface of the middle end of the connecting cylinder. The abutting rubber block is installed on the end face of the adjusting screw extending to the inside of the connecting cylinder through a bearing sleeve. Every two adjusting screws form a group and are symmetrically arranged on the outer circumferential surface of the connecting cylinder. The abutting rubber block and the adjusting screw are arranged in a one-to-one correspondence.

[0009] Preferably, the expansion unit further comprises a guide rod, which is fixedly arranged on the inner wall of the other end of the rectangular frame plate and movably passes through the two bearing strips.

[0010] Preferably, a first turntable is fixedly provided on the end surface of the bidirectional screw rod that movably extends to the outside of the rectangular frame plate.

[0011] Preferably, a second turntable is fixedly provided on the end surface of the adjusting screw located outside the assembly cylinder.

[0012] Preferably, the assembled cylinder and the supporting vertical plate are arranged parallel to each other.

[0013] Preferably, the adjusting screw and the connecting cylinder are arranged perpendicular to each other.

[0014] Compared with the prior art, the telescopic rotating shaft cantilever mechanism of the utility model has the following beneficial effects:

[0015] 1. In the utility model, an extension unit is provided, after the rotating shaft and the cantilever are assembled on the two supporting vertical plates through the assembly unit, the two-way screw rod is held outside the rectangular frame plate and rotated forwards and backwards, and the two bearing strips threadedly connected with the two-way screw rod are subjected to force to move relative to the inner side of the rectangular frame plate. The guide rod can guide the bearing strips to slide and rise and provide auxiliary support for them. The two supporting vertical plates can synchronously enter and exit the rectangular frame plate through the movable notch. By adjusting the exposed area of the two supporting vertical plates on the rectangular frame plate, the rotating shaft and the cantilever assembled on the two supporting vertical plates can be flexibly and easily adjusted in relative height.

[0016] 2. In the present invention, by providing an assembly unit, the connecting parts on the rotating shaft and the cantilever can be respectively inserted into the two assembly cylinders. By holding and rotating the two adjusting screws outside the assembly cylinder forward and backward, the rotation and translation of the two adjusting screws can help the two abutting rubber blocks to press against the connecting parts on the rotating shaft and the cantilever. The connecting parts are clamped and fixed in the assembly cylinder to help the rotating shaft and the cantilever to be limitedly assembled on the two supporting vertical plates. This mechanism is simple and flexible to assemble on the rotating shaft and the cantilever. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 This is a schematic diagram of the overall structure of a retractable shaft cantilever mechanism of the utility model;

[0019] Figure 2 This is a schematic diagram of the top view of a retractable rotating shaft cantilever mechanism of the utility model;

[0020] Figure 3 For this utility model Figure 2 Schematic diagram of the cross-sectional structure at AA in the middle;

[0021] Figure 4 For this utility model Figure 2 Schematic diagram of the cross-section structure at the middle BB;

[0022] Figure 5 This is a front view structural diagram of a retractable rotating shaft cantilever mechanism of the utility model.

[0023] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0024] 1. Rectangular frame board;

[0025] 2. Extension unit; 201. Bidirectional screw; 202. Load-bearing strip; 203. Support vertical plate; 204. Guide rod;

[0026] 3. Assembly unit; 301. Carrying disc; 302. Assembly cylinder; 303. Adjusting screw; 304. Abutting rubber block;

[0027] 4. First turntable;

[0028] 5. The second turntable. DETAILED DESCRIPTION

[0029] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0030] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," "the other end," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0031] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "connected," etc., should be understood in a broad sense. For example, "connected" may refer to a fixed connection, a detachable connection, or an integral connection; it may refer to a mechanical connection or an electrical connection; it may refer to a direct connection or an indirect connection through an intermediate medium; it may refer to internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in this utility model based on the specific circumstances. Example

[0032] like Figure 1 、 Figure 2 、 Figure 3 as well as Figure 5 As shown, a retractable shaft cantilever mechanism includes a rectangular frame plate 1 with a hollow interior, and further includes: an expansion unit 2 and an assembly unit 3 arranged on the rectangular frame plate 1;

[0033] The expansion unit 2 includes a bidirectional screw rod 201, a load-bearing strip 202, and a support vertical plate 203. The bidirectional screw rod 201 is movably arranged on the inner wall of one end of the rectangular frame plate 1. There are two load-bearing strips 202, which respectively correspond to the positive and negative threads symmetrically arranged on the bidirectional screw rod 201. A movable notch is respectively opened at the center of the two opposite sides of the rectangular frame plate 1. The two support vertical plates 203 are respectively fixedly arranged at the center of the two opposite sides of the load-bearing strips 202, and the support vertical plates 203 extend to the outside of the rectangular frame plate 1 through the movable notch.

[0034] The assembly unit 3 includes a bearing disc 301, an assembly cylinder 302, an adjusting screw 303 and an abutting rubber block 304. The two bearing discs 301 are respectively fixed on the end faces of the two supporting vertical plates 203, and the two assembly cylinders 302 are respectively fixed on the two bearing discs 301. The adjusting screw 303 is threadedly assembled on the outer circumferential surface of the middle end of the assembly cylinder 302. The abutting rubber block 304 is installed on the end face of the adjusting screw 303 extending to the inside of the assembly cylinder 302 through a bearing sleeve. Every two adjusting screws 303 form a group and are symmetrically arranged on the outer circumferential surface of the assembly cylinder 302. The abutting rubber block 304 and the adjusting screw 303 are arranged in a one-to-one correspondence.

[0035] Furthermore, the extension unit 2 further includes a guide rod 204 , which is fixedly disposed on the inner wall of the other end of the rectangular frame plate 1 and movably passes through the two bearing strips 202 .

[0036] Furthermore, the bidirectional screw rod 201 movably extends to the end surface outside the rectangular frame plate 1 where a first turntable 4 is fixedly provided.

[0037] Furthermore, the assembled cylinder 302 and the supporting vertical plate 203 are arranged parallel to each other.

[0038] The extension unit 2 allows the rotating shafts and cantilevers assembled on the two supporting vertical plates 203 to be adjusted in relative height flexibly and conveniently. Example

[0039] like Figure 1 、 Figure 2 、 Figure 4 as well as Figure 5 As shown, a retractable shaft cantilever mechanism includes a rectangular frame plate 1 with a hollow interior, and further includes: an expansion unit 2 and an assembly unit 3 arranged on the rectangular frame plate 1;

[0040] The expansion unit 2 includes a bidirectional screw rod 201, a load-bearing strip 202, and a support vertical plate 203. The bidirectional screw rod 201 is movably arranged on the inner wall of one end of the rectangular frame plate 1. There are two load-bearing strips 202, which respectively correspond to the positive and negative threads symmetrically arranged on the bidirectional screw rod 201. A movable notch is respectively opened at the center of the two opposite sides of the rectangular frame plate 1. The two support vertical plates 203 are respectively fixedly arranged at the center of the two opposite sides of the load-bearing strips 202, and the support vertical plates 203 extend to the outside of the rectangular frame plate 1 through the movable notch.

[0041] The assembly unit 3 includes a bearing disc 301, an assembly cylinder 302, an adjusting screw 303 and an abutting rubber block 304. The two bearing discs 301 are respectively fixed on the end faces of the two supporting vertical plates 203, and the two assembly cylinders 302 are respectively fixed on the two bearing discs 301. The adjusting screw 303 is threadedly assembled on the outer circumferential surface of the middle end of the assembly cylinder 302. The abutting rubber block 304 is installed on the end face of the adjusting screw 303 extending to the inside of the assembly cylinder 302 through a bearing sleeve. Every two adjusting screws 303 form a group and are symmetrically arranged on the outer circumferential surface of the assembly cylinder 302. The abutting rubber block 304 and the adjusting screw 303 are arranged in a one-to-one correspondence.

[0042] Furthermore, a second turntable 5 is fixedly provided on the end surface of the adjusting screw 303 located outside the assembly cylinder 302 .

[0043] Furthermore, the assembled cylinder 302 and the supporting vertical plate 203 are arranged parallel to each other.

[0044] Furthermore, the adjusting screw 303 and the connecting cylinder 302 are arranged perpendicular to each other.

[0045] The assembly unit 3 makes it easy and flexible to assemble the mechanism on the rotating shaft and the cantilever.

[0046] The following is the working principle of the utility model:

[0047] The connecting parts on the rotating shaft and the cantilever are respectively inserted into the two assembly cylinders 302. By holding and rotating the two adjusting screws 303 on the outside of the assembly cylinder 302 forward and backward, the two adjusting screws 303 rotate and translate to help the two abutting rubber blocks 304 to press against the connecting parts on the rotating shaft and the cantilever. The two-way screw rod 201 is held and rotated forward and backward outside the rectangular frame plate 1. The two bearing strips 202 threadedly connected to the two-way screw rod 201 are subjected to force to move relative to the inner side of the rectangular frame plate 1. The guide rod 204 guides the bearing strips 202 to slide and rise and fall. The two supporting vertical plates 203 synchronously pass through the movable notch to enter and exit the rectangular frame plate 1. By adjusting the exposed area of the two supporting vertical plates 203 on the rectangular frame plate 1, the relative height of the rotating shaft and cantilever assembled on the two supporting vertical plates 203 is adjusted accordingly.

[0048] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A retractable shaft cantilever mechanism, comprising a rectangular frame plate (1) with a hollow interior, characterized in that: Also includes: An expansion unit (2) and an assembly unit (3) are arranged on a rectangular frame plate (1); The expansion unit (2) comprises a bidirectional screw rod (201), a bearing strip (202) and a supporting vertical plate (203), wherein the bidirectional screw rod (201) is movably arranged on the inner wall of one end of the rectangular frame plate (1), and the bearing strip (202) is provided with two and respectively corresponds to the positive and negative sections of the thread symmetrically arranged on the bidirectional screw rod (201), and a movable notch is respectively opened at the center of the two opposite side surfaces of the rectangular frame plate (1), and the two supporting vertical plates (203) are respectively fixedly arranged at the center of the two opposite side surfaces of the two bearing strips (202), and the supporting vertical plates (203) extend to the outside of the rectangular frame plate (1) through the movable notch; The assembly unit (3) comprises a bearing disc (301), a connecting cylinder (302), an adjusting screw (303) and an abutting rubber block (304). The two bearing discs (301) are respectively fixedly arranged on the end surfaces of the two supporting vertical plates (203). The two connecting cylinders (302) are respectively fixedly arranged on the two bearing discs (301). The adjusting screw (303) is threadedly assembled on the outer peripheral surface of the middle end of the connecting cylinder (302). The abutting rubber block (304) is mounted on the end surface of the adjusting screw (303) extending to the inside of the connecting cylinder (302) through a bearing sleeve. Every two adjusting screws (303) form a group and are symmetrically arranged on the outer peripheral surface of the connecting cylinder (302). The abutting rubber block (304) and the adjusting screw (303) are arranged in a one-to-one correspondence.

2. The retractable shaft cantilever mechanism according to claim 1, characterized in that: The expansion unit (2) further comprises a guide rod (204), wherein the guide rod (204) is fixedly arranged on the inner wall of the other end of the rectangular frame plate (1) and movably penetrates the two bearing strips (202).

3. The retractable shaft cantilever mechanism according to claim 2, characterized in that: The bidirectional screw rod (201) is movably extended to the end surface outside the rectangular frame plate (1), and a first rotating disk (4) is fixedly provided thereon.

4. The retractable rotating shaft cantilever mechanism according to claim 1, characterized in that: A second rotary disk (5) is fixedly provided on the end surface of the adjusting screw (303) located outside the assembly cylinder (302).

5. The retractable rotating shaft cantilever mechanism according to claim 1, characterized in that: The assembled cylinder (302) and the supporting vertical plate (203) are arranged parallel to each other.

6. The retractable rotating shaft cantilever mechanism according to claim 1, characterized in that: The adjusting screw (303) and the connecting cylinder (302) are arranged perpendicular to each other.

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