Medical crane tower rotation braking assembly

Abstract

The utility model discloses a medical tower crane rotation brake assembly, which relates to the technical field of medical tower cranes, and comprises a rotation inner shaft and a rotation outer shaft sleeved on the outer peripheral surface of the bottom end of the rotation inner shaft through a bearing, and further comprises an assembly anti-skid unit arranged on the rotation inner shaft and a brake unit arranged on the rotation outer shaft, the assembling anti-skid unit comprises arc-shaped rubber plates, inserting rods, arc-shaped backup plates, assembling screws, clamping arc plates and limiting nuts, two arc-shaped grooves are symmetrically formed in the outer circumferential face of the top end of the rotating inner shaft, and the two arc-shaped rubber plates are movably arranged on the two arc-shaped grooves respectively; the braking unit comprises a supporting arm, an electric push rod, a positioning arc plate and strip-shaped convex teeth. A plurality of strip-shaped grooves are formed in the peripheral face of the bottom end of the arc-shaped rubber plate at equal intervals. According to the utility model, the limiting nut is rotationally assembled on the assembling screw rod, the clamping arc plate can move on the inserting rod and the assembling screw rod and clamp the arc rubber plate, and the equipment is simple, convenient and flexible to disassemble, assemble and replace the arc rubber plate matched with braking.

Description

Technical Field

[0001] This utility model relates to the field of medical pendant technology, and in particular to a medical pendant rotation braking assembly. Background Technology

[0002] Currently, there are many types of braking and locking mechanisms. Some use electromagnetic power to achieve braking, some use hydraulic power, and some use mechanical transmission. However, existing braking and locking mechanisms cannot accurately lock the swing arm after it has moved to the required position when the medical pendant is in operation. This causes the equipment suspended by the swing arm to move during operation, reducing the safety of the medical pendant.

[0003] Publication number CN203322103U discloses a medical pendant rotation braking assembly, comprising: a first cantilever and a second cantilever; a first rotating shaft; a second rotating shaft; a support driver; and a brake rod. A first end of the brake rod is connected to the driver, and a second end of the brake rod is pivotally mounted on the support. The brake rod is driven by the driver to rotate between a first position and a second position. When the brake rod is in the first position, the second rotating shaft is rotatable relative to the first rotating shaft. When the brake rod is in the second position, it abuts against the outer peripheral wall of the second rotating shaft to brake it. The medical pendant rotation braking assembly according to this utility model is easy to control. During the operation of the medical pendant, it ensures that the cantilever can move to the required work position and can safely and reliably stop at the work position, ensuring that the equipment suspended by the cantilever does not move while medical personnel are working, thus ensuring high safety.

[0004] While the above solutions can help with the rotation braking of medical pendants, the friction layer used for braking is prone to wear and difficult to maintain, and the braking effect is generally poor. Therefore, we propose a rotation braking component for medical pendants. Utility Model Content

[0005] The main purpose of this utility model is to provide a medical pendant rotation braking assembly. By setting up an anti-slip unit and a braking unit, it solves the problems of easy wear and maintenance of the friction layer that cooperates with braking, as well as the problem of mediocre braking effect.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution: a medical pendant rotation braking assembly, including an inner rotation shaft and an outer rotation shaft mounted on the outer circumferential surface of the bottom end of the inner rotation shaft through a bearing sleeve, and further including: an assembly anti-slip unit disposed on the inner rotation shaft and a braking unit disposed on the outer rotation shaft;

[0007] The assembled anti-slip unit includes an arc-shaped rubber plate, a plug rod, an arc-shaped backing plate, a connecting screw, a clamping arc plate, and a limiting nut. Two arc-shaped grooves are symmetrically formed on the outer circumferential surface of the top end of the rotating inner shaft. The two arc-shaped rubber plates are movably disposed on the two arc-shaped grooves. A first insertion hole is formed on the outer circumferential surface of each of the two arc-shaped rubber plates. A second insertion hole is formed on the outer circumferential surface of the top end of the rotating inner shaft. The plug rod movably passes through the rotating inner shaft and the two arc-shaped rubber plates through the first and second insertion holes. The arc-shaped backing plate is fixedly disposed on the end face of the plug rod. A first connecting hole is formed on the outer circumferential surface of each of the two arc-shaped rubber plates. A second connecting hole is formed on the outer circumferential surface of the top end of the rotating inner shaft. The connecting screw is fixedly disposed at the center of the concave surface of the arc-shaped backing plate and movably passes through the rotating inner shaft and the two arc-shaped rubber plates through the first and second connecting holes. The clamping arc plate is simultaneously movably sleeved on the outer circumferential surface of the plug rod and the connecting screw. The limiting nut is threaded onto the outer circumferential surface of the connecting screw.

[0008] The braking unit includes a support arm, an electric push rod, a positioning arc plate, and strip-shaped protrusions. Several strip-shaped grooves are equidistantly opened on the outer circumferential surface of the bottom end of the arc-shaped rubber plate. The two support arms are symmetrically fixed on the outer circumferential surface of the rotating outer shaft. The two electric push rods are respectively installed on the top ends of the two support arms. The two positioning arc plates are respectively fixedly installed on the output ends of the two electric push rods and are located on the outer side of the two arc-shaped rubber plates. The two sets of strip-shaped protrusions are respectively fixed on the concave surfaces of the two positioning arc plates.

[0009] Preferably, the connecting screw and the insert are arranged parallel to each other.

[0010] Preferably, there are two insertion rods, which are symmetrically arranged on the concave surface of the arc-shaped backing plate.

[0011] Preferably, the electric push rod and the connecting screw are arranged parallel to each other.

[0012] Preferably, the strip-shaped protrusions and the strip-shaped grooves are arranged parallel to each other.

[0013] Preferably, a cantilever connecting plate is fixedly provided at the top end of the inner rotating shaft and the bottom end of the outer rotating shaft, and a mounting hole is provided at the corner of the end face of the cantilever connecting plate.

[0014] Compared with the prior art, the medical pendant rotation braking assembly of this utility model has the following beneficial effects:

[0015] 1. In this utility model, by setting up an assembly anti-slip unit, two arc-shaped rubber plates are placed on two symmetrically opened arc-shaped grooves on the outer circumferential surface of the top of the rotating inner shaft. The insert rod on the concave surface of the arc-shaped back plate can movably pass through the rotating inner shaft and the two arc-shaped rubber plates through the first insert hole and the second insert hole. The assembly screw on the concave surface of the arc-shaped back plate can movably pass through the rotating inner shaft and the two arc-shaped rubber plates through the first assembly hole and the second assembly hole. After the clamping arc plate is movably sleeved on the outer circumferential surface of the insert rod and the assembly screw, the assembly limit nut is rotated onto the assembly screw. The clamping arc plate can move on the insert rod and the assembly screw and clamp the arc-shaped rubber plate. The arc-shaped rubber plate and the rotating inner shaft are assembled and fixed. The equipment can easily and flexibly disassemble and replace the arc-shaped rubber plate that is used for braking.

[0016] 2. In this utility model, by setting a braking unit, the electric push rod on the support arm can extend and retract to help the positioning arc plate approach the outer circumference of the bottom end of the arc-shaped rubber plate. Several strip-shaped protrusions fixed on the concave surface of the positioning arc plate can be inserted into and pressed against the strip-shaped grooves at different positions on the outer circumference of the bottom end of the arc-shaped rubber plate to increase the frictional resistance. The two positioning arc plates and the two sets of strip-shaped protrusions can clamp the two arc-shaped rubber plates. The rotating inner shaft can complete the braking on the rotating outer shaft along with the arc-shaped rubber plate. The equipment rotation braking operation is simple and has high stability. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of a medical pendant rotary braking assembly according to the present invention;

[0019] Figure 2 This is a top view schematic diagram of a medical pendant rotation braking assembly according to the present invention;

[0020] Figure 3 This utility model Figure 2 Schematic diagram of the cross-sectional structure at point AA;

[0021] Figure 4 This utility model Figure 3 Schematic diagram of the cross-sectional structure at point BB;

[0022] Figure 5 This is a side view of the rotating braking assembly of a medical pendant according to the present invention.

[0023] The attached diagram lists the components represented by each number as follows:

[0024] 1. Rotary inner shaft;

[0025] 2. Rotary outer shaft;

[0026] 3. Assemble the anti-slip unit; 301. Arc-shaped rubber plate; 302. Insert rod; 303. Arc-shaped backing plate; 304. Assembly screw; 305. Clamping arc plate; 306. Limit nut;

[0027] 4. Braking unit; 401. Strip groove; 402. Support arm; 403. Electric push rod; 404. Positioning arc plate; 405. Strip tooth;

[0028] 5. Cantilever connecting plate. Detailed Implementation

[0029] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[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," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, 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 this utility model. In addition, 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 explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Example

[0032] like Figure 1 , Figure 2 , Figure 4 as well as Figure 5 As shown, a medical pendant rotation braking assembly includes an inner rotating shaft 1 and an outer rotating shaft 2 mounted on the outer circumferential surface of the bottom end of the inner rotating shaft 1 via bearing sleeves. It also includes an anti-slip assembly 3 disposed on the inner rotating shaft 1 and a braking unit 4 disposed on the outer rotating shaft 2.

[0033] The anti-slip unit 3 includes an arc-shaped rubber plate 301, a rod 302, an arc-shaped backing plate 303, a connecting screw 304, a clamping arc plate 305, and a limiting nut 306. Two arc-shaped grooves are symmetrically formed on the outer circumferential surface of the top end of the inner rotating shaft 1. The two arc-shaped rubber plates 301 are movably mounted on the two arc-shaped grooves respectively. A first insertion hole is formed on the outer circumferential surface of each arc-shaped rubber plate 301, and a second insertion hole is formed on the outer circumferential surface of the top end of the inner rotating shaft 1. The rod 302 movably passes through the inner rotating shaft 1 and the two arc-shaped rubber plates 301 via the first and second insertion holes. 1. An arc-shaped backing plate 303 is fixedly installed on the end face of the insertion rod 302. The outer circumferential surfaces of the two arc-shaped rubber plates 301 are provided with a first set of connecting holes. The outer circumferential surface of the top end of the rotating inner shaft 1 is provided with a second set of connecting holes. The connecting screw 304 is fixedly installed at the center of the concave surface of the arc-shaped backing plate 303 and passes through the rotating inner shaft 1 and the two arc-shaped rubber plates 301 through the first set of connecting holes and the second set of connecting holes. The clamping arc plate 305 is simultaneously movably sleeved on the outer circumferential surfaces of the insertion rod 302 and the connecting screw 304. The limiting nut 306 is threaded onto the outer circumferential surface of the connecting screw 304.

[0034] The braking unit 4 includes a support arm 402, an electric push rod 403, a positioning arc plate 404, and strip-shaped protrusions 405. Several strip-shaped grooves 401 are equidistantly opened on the outer circumferential surface of the bottom end of the arc-shaped rubber plate 301. Two support arms 402 are symmetrically fixed on the outer circumferential surface of the rotating outer shaft 2. Two electric push rods 403 are respectively installed on the top ends of the two support arms 402. Two positioning arc plates 404 are respectively fixedly installed on the output ends of the two electric push rods 403 and are respectively located on the outer side of the two arc-shaped rubber plates 301. Two sets of strip-shaped protrusions 405 are respectively fixedly installed on the concave surface of the two positioning arc plates 404.

[0035] Furthermore, the connecting screw 304 and the insertion rod 302 are arranged parallel to each other.

[0036] Furthermore, there are two insertion rods 302, which are symmetrically arranged on the concave surface of the arc-shaped backing plate 303.

[0037] Furthermore, cantilever connecting plates 5 are fixedly installed at the top of the inner rotating shaft 1 and the bottom of the outer rotating shaft 2, and mounting holes are provided at the corners of the end face of the cantilever connecting plates 5.

[0038] By assembling the anti-slip unit 3, the equipment can easily and flexibly disassemble and replace the arc-shaped rubber plate 301 that is used for braking. Example

[0039] like Figure 1 , Figure 2 , Figure 3 as well as Figure 5As shown, a medical pendant rotation braking assembly includes an inner rotating shaft 1 and an outer rotating shaft 2 mounted on the outer circumferential surface of the bottom end of the inner rotating shaft 1 via bearing sleeves. It also includes an anti-slip assembly 3 disposed on the inner rotating shaft 1 and a braking unit 4 disposed on the outer rotating shaft 2.

[0040] The anti-slip unit 3 includes an arc-shaped rubber plate 301, a rod 302, an arc-shaped backing plate 303, a connecting screw 304, a clamping arc plate 305, and a limiting nut 306. Two arc-shaped grooves are symmetrically formed on the outer circumferential surface of the top end of the inner rotating shaft 1. The two arc-shaped rubber plates 301 are movably mounted on the two arc-shaped grooves respectively. A first insertion hole is formed on the outer circumferential surface of each arc-shaped rubber plate 301, and a second insertion hole is formed on the outer circumferential surface of the top end of the inner rotating shaft 1. The rod 302 movably passes through the inner rotating shaft 1 and the two arc-shaped rubber plates 301 via the first and second insertion holes. 1. An arc-shaped backing plate 303 is fixedly installed on the end face of the insertion rod 302. The outer circumferential surfaces of the two arc-shaped rubber plates 301 are provided with a first set of connecting holes. The outer circumferential surface of the top end of the rotating inner shaft 1 is provided with a second set of connecting holes. The connecting screw 304 is fixedly installed at the center of the concave surface of the arc-shaped backing plate 303 and passes through the rotating inner shaft 1 and the two arc-shaped rubber plates 301 through the first set of connecting holes and the second set of connecting holes. The clamping arc plate 305 is simultaneously movably sleeved on the outer circumferential surfaces of the insertion rod 302 and the connecting screw 304. The limiting nut 306 is threaded onto the outer circumferential surface of the connecting screw 304.

[0041] The braking unit 4 includes a support arm 402, an electric push rod 403, a positioning arc plate 404, and strip-shaped protrusions 405. Several strip-shaped grooves 401 are equidistantly opened on the outer circumferential surface of the bottom end of the arc-shaped rubber plate 301. Two support arms 402 are symmetrically fixed on the outer circumferential surface of the rotating outer shaft 2. Two electric push rods 403 are respectively installed on the top ends of the two support arms 402. Two positioning arc plates 404 are respectively fixedly installed on the output ends of the two electric push rods 403 and are respectively located on the outer side of the two arc-shaped rubber plates 301. Two sets of strip-shaped protrusions 405 are respectively fixedly installed on the concave surface of the two positioning arc plates 404.

[0042] Furthermore, the electric push rod 403 and the connecting screw 304 are arranged parallel to each other.

[0043] Furthermore, the strip-shaped protrusions 405 and the strip-shaped grooves 401 are arranged parallel to each other.

[0044] Furthermore, cantilever connecting plates 5 are fixedly installed at the top of the inner rotating shaft 1 and the bottom of the outer rotating shaft 2, and mounting holes are provided at the corners of the end face of the cantilever connecting plates 5.

[0045] The braking unit 4 makes the equipment's rotation braking operation simple and highly stable.

[0046] The working principle of this utility model is as follows:

[0047] After two arc-shaped rubber plates 301 are placed on two symmetrically opened arc-shaped grooves on the outer circumference of the top of the inner rotating shaft 1, the insert rod 302 on the concave surface of the arc-shaped back plate 303 moves through the inner rotating shaft 1 and the two arc-shaped rubber plates 301 through the first insertion hole and the second insertion hole. The assembly screw 304 on the concave surface of the arc-shaped back plate 303 moves through the inner rotating shaft 1 and the two arc-shaped rubber plates 301 through the first assembly hole and the second assembly hole. After the clamping arc plate 305 is movably sleeved on the outer circumference of the insert rod 302 and the assembly screw 304, the assembly limiting nut 306 is rotated onto the assembly screw 304. The clamping arc plate 305 is then movably sleeved on the outer circumference of the insert rod 302 and the assembly screw 304. The connecting screw 304 moves and clamps the arc-shaped rubber plate 301, and the arc-shaped rubber plate 301 and the rotating inner shaft 1 are connected and fixed. The electric push rod 403 on the support arm 402 operates to extend and retract, helping the positioning arc plate 404 to approach the bottom outer circumference of the arc-shaped rubber plate 301. Several strip-shaped protrusions 405 fixedly set on the concave surface of the positioning arc plate 404 are inserted into and pressed against the strip-shaped grooves 401 at different positions on the bottom outer circumference of the arc-shaped rubber plate 301 to increase the frictional resistance. The two positioning arc plates 404 and the two sets of strip-shaped protrusions 405 clamp the two arc-shaped rubber plates 301, and the rotating inner shaft 1 completes the braking on the rotating outer shaft 2 along with the arc-shaped rubber plate 301.

[0048] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A medical pendant rotary braking assembly, comprising an inner rotary shaft (1) and an outer rotary shaft (2) mounted on the outer circumferential surface of the bottom end of the inner rotary shaft (1) via bearing sleeves, characterized in that, Also includes: An anti-slip unit (3) is installed on the inner rotating shaft (1) and a braking unit (4) is installed on the outer rotating shaft (2). The assembled anti-slip unit (3) includes an arc-shaped rubber plate (301), a plug rod (302), an arc-shaped back plate (303), a connecting screw (304), a clamping arc plate (305), and a limiting nut (306). Two arc-shaped grooves are symmetrically opened on the outer circumferential surface of the top end of the rotating inner shaft (1). The two arc-shaped rubber plates (301) are respectively movably mounted on the two arc-shaped grooves. A first insertion hole is opened on the outer circumferential surface of each of the two arc-shaped rubber plates (301). A second insertion hole is opened on the outer circumferential surface of the top end of the rotating inner shaft (1). The plug rod (302) movably passes through the first and second insertion holes to penetrate the rotating inner shaft (1) and the two arc-shaped rubber plates (301, 302, 303, 304, 305, and 306. 1) The arc-shaped backing plate (303) is fixedly set on the end face of the insert rod (302). The two arc-shaped rubber plates (301) are provided with a first set of connecting holes on their outer peripheral surfaces. The top outer peripheral surface of the rotating inner shaft (1) is provided with a second set of connecting holes. The connecting screw (304) is fixedly set at the center of the concave surface of the arc-shaped backing plate (303) and passes through the rotating inner shaft (1) and the two arc-shaped rubber plates (301) through the first set of connecting holes and the second set of connecting holes. The clamping arc plate (305) is simultaneously movably sleeved on the outer peripheral surfaces of the insert rod (302) and the connecting screw (304). The limiting nut (306) is threadedly assembled on the outer peripheral surface of the connecting screw (304). The braking unit (4) includes a support arm (402), an electric push rod (403), a positioning arc plate (404), and strip-shaped protrusions (405). Several strip-shaped grooves (401) are equidistantly provided on the outer circumferential surface of the bottom end of the arc-shaped rubber plate (301). The two support arms (402) are symmetrically fixed on the outer circumferential surface of the rotating outer shaft (2). The two electric push rods (403) are respectively installed on the top ends of the two support arms (402). The two positioning arc plates (404) are respectively fixed on the output ends of the two electric push rods (403) and are respectively located on the outside of the two arc-shaped rubber plates (301). The two sets of strip-shaped protrusions (405) are respectively fixed on the concave surfaces of the two positioning arc plates (404).

2. The medical suspension swing brake assembly of claim 1, wherein: The connecting screw (304) and the insert (302) are arranged parallel to each other.

3. The medical suspension swing brake assembly of claim 1, wherein: Two insertion rods (302) are provided and are symmetrically arranged on the concave surface of the arc-shaped backing plate (303).

4. The medical suspension swing brake assembly of claim 1, wherein: The electric push rod (403) and the connecting screw (304) are arranged parallel to each other.

5. The medical suspension swing brake assembly of claim 1, wherein: The strip-shaped protrusions (405) and the strip-shaped grooves (401) are arranged parallel to each other.

6. The medical suspension swing brake assembly of claim 1, wherein: The top end of the inner rotating shaft (1) and the bottom end of the outer rotating shaft (2) are both fixedly provided with cantilever connecting plates (5), and mounting holes are provided at the corners of the end face of the cantilever connecting plates (5).

Images