Three-joint support arm mechanism
By using the locking components and locking rods of the three-joint outrigger mechanism, the outrigger angle can be quickly locked, solving the problem of complex operation of traditional medical outriggers and improving the convenience and efficiency of operation in emergency medical scenarios.
Patent Information
- Application Number
- CN202520146840.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-21
- Publication Date
- 2026-02-27
- Estimated Expiration
- 2035-01-21
AI Technical Summary
Traditional medical outriggers require individual knobs to lock each joint, making operation complex and prone to causing the equipment to fall in emergencies, thus delaying treatment.
Design a three-joint outrigger mechanism that, through the coordinated action of the locking assembly and the locking rod, locks the angles of the first, second, and third outriggers at once, simplifying the operation steps and improving convenience.
After adjusting the angle at any position within the load-bearing range, medical equipment can be quickly fixed, simplifying operation, improving work efficiency, and ensuring timely treatment in emergency medical scenarios.
Smart Images
Figure CN223953651U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to mechanical branch arm technical field especially is a three joint branch arm mechanism. BACKGROUND
[0002] In the medical field, medical branch arms are key devices for fixing and supporting various medical equipment, and their flexibility and stability are crucial for medical operations. Although traditional medical branch arms can provide certain adjustment functions, a common problem is that each joint needs to be locked by an independent knob, which not only increases the complexity of operation for medical personnel, but also easily leads to equipment falling or other accidents during single-handed operation. Especially in emergency medical scenarios, the cumbersome operation steps may delay the treatment opportunity. SUMMARY
[0003] The utility model provides a three joint branch arm mechanism for the prior art problem, simplifies the operation difficulty, improves the use convenience, satisfies the demand of operating in the fixed position at any position and any angle after the third branch arm connects the related equipment, greatly simplifies the operation step of medical personnel, improves the work efficiency, especially in emergency medical scenarios, can fix medical equipment quickly, and ensures the timely treatment.
[0004] To solve the above technical problems, the utility model adopts the following technical scheme:
[0005] The utility model provides a three joint branch arm mechanism, it includes the connection base, first branch arm, locking assembly, second branch arm and third branch arm that set gradually, one end of first branch arm is connected with the rotation of connection base, the other end of first branch arm is connected with the rotation of one end of second branch arm, locking assembly is set in the connection of first branch arm with second branch arm, the other end of second branch arm is connected with the rotation of one end of third branch arm, first locking rod is set in the activity of first branch arm and is penetrated, second locking rod is set in the activity of second branch arm and is penetrated, locking assembly is used for driving first locking rod and is used for driving second locking rod to be locked the relative position of first branch arm and connection base, and the relative position of second branch arm and third branch arm is locked simultaneously.
[0006] Among them, two ends of first locking rod are penetrated and set in the first limiting sliding slot in first branch arm, and first locking rod is set in the activity of first limiting sliding slot.
[0007] Among them, two ends of second locking rod are penetrated and set in the second limiting sliding slot in second branch arm, and second locking rod is set in the activity of second limiting sliding slot.
[0008] Wherein, the other end of the second branch is provided with a movable groove, one end of the third branch is provided with a universal ball head, the universal ball head is movably arranged in the movable groove, the second limiting sliding groove is communicated with the movable groove.
[0009] Wherein, the other end of the second branch is provided with a movable groove, one end of the third branch is provided with a universal ball head, the universal ball head is movably arranged in the movable groove, the second limiting sliding groove is communicated with the movable groove.
[0010] Wherein, the other end of the third branch is provided with a plurality of connecting holes.
[0011] Wherein, the first branch is internally provided with a hydraulic rod, one end of the hydraulic rod is rotatably connected with the inner wall of the first branch, the other end of the hydraulic rod is rotatably connected with the connecting base.
[0012] Wherein, the locking assembly comprises a locking knob, a rotating shaft, a first locking block and a second locking block, the first locking block and the second locking block are coaxially connected, the first locking block and the second locking block are fixedly sleeved on the outer periphery of the rotating shaft, the rotating shaft is rotatably arranged at the other end of the first branch, the locking knob is arranged at one end of the rotating shaft and located on the outer side wall of the other end of the first branch, the first locking block is arranged corresponding to the first locking rod, and the second locking block is arranged corresponding to the second locking rod.
[0013] Wherein, the first locking block is provided with a first displacement inclined surface on the side close to the first locking rod, the first locking rod is provided with a first abutting inclined surface on the end close to the first locking block, and the first abutting inclined surface is matched with the first displacement inclined surface to slide and abut;
[0014] The second locking block is provided with a second displacement inclined surface on the side close to the second locking rod, and the second locking rod is provided with a second abutting inclined surface on the end close to the second locking block, and the second abutting inclined surface is matched with the second displacement inclined surface to slide and abut.
[0015] Wherein, the other end of the first branch is provided with a first rotating block, one end of the second branch is provided with a second rotating block, the side walls of the first rotating block and the second rotating block close to each other are rotatably connected, the first locking block is sleeved in the first rotating block, and the second locking block is sleeved in the second rotating block; the locking assembly further comprises an elastic reset member, the elastic reset member is movably sleeved on the outer periphery of the first locking block or / and the second locking block, and the two ends of the elastic reset member are connected to the first rotating block and the second rotating block respectively.
[0016] The utility model discloses the beneficial effect:
[0017] The utility model discloses novel structure, and the connecting base is used for fixing on medical cart or other equipment, and the third branch is used for connecting external equipment, and the first branch can rotate relative to the connecting base, and the second branch can rotate relative to the first branch, and the third branch can rotate relative to the second branch, in order to be able to lock the angle of first branch, second branch and third branch one time, the utility model discloses through the cooperation action of locking assembly and first locking rod and second locking rod, through the locking assembly drive first locking rod and drive second locking rod and third branch at the same time, and then make when operating locking assembly, can lock the angle of first branch, second branch and third branch one time, the utility model discloses clever design, in the bearing range and design maximum angle, after adjusting the angle of first branch, second branch and third branch in any position, can pass through the locking assembly between first branch and second branch and lock the first branch, second branch and third branch completely and be not moved, simplify the operation difficulty, improve the use convenience, satisfy the demand of operating in fixed position to reach any position any angle after third branch connecting relevant equipment, greatly simplify the operation step of medical staff, improve the work efficiency, especially in the emergency medical scene, can quickly fix medical equipment, ensure the treatment in time. BRIEF DESCRIPTION OF DRAWINGS
[0018] Figure 1 It is a structure schematic view of a three-joint branch arm mechanism of the utility model.
[0019] Figure 2 It is an internal structure schematic view of a three-joint branch arm mechanism of the utility model.
[0020] Figure 3 It is a structure schematic view of first branch and connecting base of the utility model.
[0021] Figure 4 It is a structure schematic view of second branch of the utility model.
[0022] In Figures 1 to 4 The reference signs in the drawings include:
[0023] 100, connecting base;200, first branch;300, locking assembly;400, second branch;500, third branch;
[0024] 1, first locking rod; 2, second locking rod; 3, first limiting sliding groove; 4, second limiting sliding groove; 5, movable recess; 6, universal ball head; 7, avoiding gap; 8, hydraulic rod; 9, locking knob; 10, pivot; 11, first locking block; 12, second locking block; 13, first accommodation inclined surface; 14, first abutting inclined surface; 15, second accommodation inclined surface; 16, second abutting inclined surface; 17, first rotating block; 18, second rotating block; 19, elastic reset member; 20, connecting hole. DETAILED DESCRIPTION
[0025] For the convenience of the understanding of those skilled in the art, the utility model is further explained below in combination with examples and drawings, and the content mentioned in the implementation manner is not a limitation on the utility model. The utility model is described in detail below in combination with drawings.
[0026] A three-joint arm mechanism, such as Figures 1 to 4As shown, it comprises a connecting base 100, a first supporting arm 200, a locking assembly 300, a second supporting arm 400 and a third supporting arm 500 arranged in sequence, one end of the first supporting arm 200 is rotationally connected with the connecting base 100, the other end of the first supporting arm 200 is rotationally connected with one end of the second supporting arm 400, the locking assembly 300 is movably arranged at the connecting place of the first supporting arm 200 and the second supporting arm 400, the other end of the second supporting arm 400 is movably connected with one end of the third supporting arm 500; a first locking rod 1 is movably arranged in the first supporting arm 200, a second locking rod 2 is movably arranged in the second supporting arm 400, the locking assembly 300 is used for driving the first locking rod 1 to abut against the connecting base 100 and simultaneously used for driving the second locking rod 2 to abut against the third supporting arm 500; that is, the locking assembly 300 is used for driving the first locking rod 1 to act to lock the relative position of the first supporting arm 200 and the connecting base 100, and simultaneously driving the second locking rod 2 to act to lock the relative position of the second supporting arm 400 and the third supporting arm 500. Specifically, the utility model structure is novel, the connecting base 100 is used for fixing on a medical cart or other equipment, the third supporting arm 500 is used for connecting external equipment (such as a display screen, a support, etc.), the first supporting arm 200 can rotate relative to the connecting base 100, the second supporting arm 400 can rotate relative to the first supporting arm 200, and the third supporting arm 500 can rotate relative to the second supporting arm 400; in order to be able to lock the angle of the first supporting arm 200, the second supporting arm 400 and the third supporting arm 500 at one time, the utility model is matched with the first locking rod 1 and the second locking rod 2 through the locking assembly 300 and the first locking rod 1 and the second locking rod 2, through the locking assembly 300 driving the first locking rod 1 to abut against the connecting base 100, simultaneously driving the second locking rod 2 to abut against the third supporting arm 500, and then making the angle of the first supporting arm 200, the second supporting arm 400 and the third supporting arm 500 be locked at one time when the locking assembly 300 is operated; the utility model design is ingenious, after the angle of the first supporting arm 200, the second supporting arm 400 and the third supporting arm 500 is adjusted at any position within the bearing range and the design maximum angle, the supporting arms of the first supporting arm 200, the second supporting arm 400 and the third supporting arm 500 can be completely locked and fixed through the locking assembly 300 between the first supporting arm 200 and the second supporting arm 400, the operation difficulty is simplified, the use convenience is improved, the demand of operating at a fixed position after the third supporting arm 500 connects related equipment to reach any position and any angle is met; the operation steps of medical staff are greatly simplified, the work efficiency is improved, especially in the emergency medical scene, medical equipment can be quickly fixed, and the treatment is ensured to be carried out in time.
[0027] In the embodiment of the present application, the first limiting sliding groove 3 is arranged at both ends of the first supporting arm 200, and the first locking rod 1 is movably arranged in the first limiting sliding groove 3. The second limiting sliding groove 4 is arranged at both ends of the second supporting arm 400, and the second locking rod 2 is movably arranged in the second limiting sliding groove 4. Specifically, under the above arrangement, the first limiting sliding groove 3 and the second limiting sliding groove 4 can limit the movement range of the first locking rod 1 and the second locking rod 2, so as to avoid the position of the first locking rod 1 and the second locking rod 2 from being separated.
[0028] In the embodiment of the present application, the other end of the second supporting arm 400 is provided with a movable groove 5, one end of the third supporting arm 500 is provided with a universal ball head 6, the universal ball head 6 is movably arranged in the movable groove 5, and the second limiting sliding groove 4 is communicated with the movable groove 5. Further, one side wall of the other end of the second supporting arm 400 is provided with a avoiding gap 7, and the avoiding gap 7 is communicated with the movable groove 5. The other end of the third supporting arm 500 is provided with a plurality of connecting holes 20. Specifically, the connecting hole 20 can be used for assembling and connecting with external equipment (such as display screen, support and the like) by cooperating with the bolt. Under the above arrangement, the universal ball head 6 can be movably arranged in the movable groove 5, the universal ball head 6 can swing in different directions to realize the swing of the third supporting arm 500 in different directions, and one side wall of the other end of the second supporting arm 400 is provided with the avoiding gap 7, which is used for avoiding the third supporting arm 500, so that the third supporting arm 500 can be rotated to the avoiding gap 7, and the second supporting arm 400 and the third supporting arm 500 are perpendicular to each other.
[0029] In the embodiment of the present application, the locking assembly 300 comprises a locking knob 9, a rotating shaft 10, a first locking block 11 and a second locking block 12. The first locking block 11 and the second locking block 12 are coaxially connected. The locking knob 9 is a damping knob. The first locking block 11 and the second locking block 12 are respectively fixedly sleeved on the outer periphery of the rotating shaft 10. The rotating shaft 10 is rotationally arranged at the other end of the first supporting arm 200. The locking knob 9 is arranged at one end of the rotating shaft 10 and located outside the outer wall of the other end of the first supporting arm 200. The first locking block 11 is arranged in correspondence with the first locking rod 1. The second locking block 12 is arranged in correspondence with the second locking rod 2. The first locking block 11 is provided with a first displacement inclined surface 13 on the side close to the first locking rod 1. The first locking rod 1 is provided with a first abutting inclined surface 14 on the end close to the first locking block 11. The first abutting inclined surface 14 is in sliding abutment with the first displacement inclined surface 13. The second locking block 12 is provided with a second displacement inclined surface 15 on the side close to the second locking rod 2. The second locking rod 2 is provided with a second abutting inclined surface 16 on the end close to the second locking block 12. The second abutting inclined surface 16 is in sliding abutment with the second displacement inclined surface 15. Specifically, after the angles of the first supporting arm 200, the second supporting arm 400 and the third supporting arm 500 are adjusted, an operator can operate the locking assembly 300 with one hand, rotate the locking knob 9, and then drive the rotating shaft 10 to rotate. Under the action of the rotating shaft 10, the first locking block 11 and the second locking block 12 are synchronously driven to rotate. Due to the rotation of the first locking block 11 and the second locking block 12, the first abutting inclined surface 14 of the first locking rod 1 is separated from the first displacement inclined surface 13 of the first locking block 11, and at the same time, the second abutting inclined surface 16 of the second locking rod 2 is separated from the second displacement inclined surface 15 of the second locking block 12. In this case, the first locking rod 1 and the second locking rod 2 are respectively moved towards and away from each other, so that one end of the first locking rod 1 abuts against the connecting base 100, and at the same time, the second locking rod 2 abuts against the universal ball head 6 of the third supporting arm 500.
[0030] In the embodiment of the present application, the other end of the first supporting arm 200 is provided with a first rotating block 17, one end of the second supporting arm 400 is provided with a second rotating block 18, the side wall of the first rotating block 17 and the second rotating block 18 close to each other is rotationally connected, the first locking block 11 is sleeved in the first rotating block 17, and the second locking block 12 is sleeved in the second rotating block 18; the locking assembly 300 further comprises an elastic reset member 19, the elastic reset member 19 is movably sleeved on the outer periphery of the first locking block 11 or / and the second locking block 12, and the two ends of the elastic reset member 19 are connected to the first rotating block 17 and the second rotating block 18 respectively; preferably, the elastic reset member 19 is a torsion spring. Specifically, under the above arrangement, when the first supporting arm 200 and the second supporting arm 400 rotate relative to each other, the first rotating block 17 and the second rotating block 18 are synchronously rotated, because the first locking block 11 is sleeved in the first rotating block 17 and the second locking block 12 is sleeved in the second rotating block 18, when the first rotating block 17 and the second rotating block 18 rotate, the first locking block 11 and the second locking block 12 will be synchronously rotated, and when the first supporting arm 200 and the second supporting arm 400 rotate, the first locking rod 1 and the second locking rod 2 will also synchronously swing, that is, when the first supporting arm 200 and the second supporting arm 400 rotate, the first abutting inclined surface 14 of the first locking rod 1 and the first accommodating inclined surface 13 of the first locking block 11 can still be abutted, and the second abutting inclined surface 16 of the second locking rod 2 and the second accommodating inclined surface 15 of the second locking block 12 can also be abutted; when it is necessary to lock the angle between the first supporting arm 200, the second supporting arm 400 and the third supporting arm 500, only the locking knob needs to be twisted by one hand to drive the rotating shaft 10 to rotate, and then the first locking block 11 and the second locking block 12 are synchronously rotated to push the first locking rod 1 and the second locking rod 2 to perform the locking operation as described above.
[0031] In the embodiment of the present application, the first supporting arm 200 is internally provided with a hydraulic rod 8 or an air spring, one end of the hydraulic rod 8 is rotationally connected with the inner wall of the first supporting arm 200, and the other end of the hydraulic rod 8 is rotationally connected with the connecting base 100. Specifically, under this arrangement, the first supporting arm 200 can rotate relative to the connecting base 100, and under the action of the hydraulic rod 8, the rotating angle of the first supporting arm 200 and the connecting base 100 can be stabilized; that is, the built-in power assisting device (such as the hydraulic rod 8 or the air spring) can effectively offset the weight of the medical equipment, so that the operator can easily move and adjust the equipment, reduce the physical consumption, and improve the comfort of operation.
[0032] The above is only the preferred embodiment of the present application, and does not limit the present application in any form. Although the present application is disclosed as above in the preferred embodiment, it is not intended to limit the present application. Any skilled person in the art can make some changes or modifications to the disclosed technical content without departing from the technical solution of the present application, and any equivalent embodiment with equivalent changes is equivalent to the above embodiment. Any simple modification, equivalent change and modification of the above embodiment according to the present application technical solution are within the scope of the present application technical solution.
Claims
1. A tri-articulated boom mechanism, characterized by: The connecting base, the first supporting arm, the locking assembly, the second supporting arm and the third supporting arm are sequentially arranged, one end of the first supporting arm is rotationally connected with the connecting base, the other end of the first supporting arm is rotationally connected with one end of the second supporting arm, the locking assembly is movably arranged at the connection between the first supporting arm and the second supporting arm, and the other end of the second supporting arm is movably connected with one end of the third supporting arm.
2. A tri-articulated boom mechanism according to claim 1, characterised in that: First limiting sliding grooves are arranged at both ends of the first supporting arm in a penetrating manner, and the first locking rod is movably arranged in the first limiting sliding grooves.
3. A three-joint arm mechanism according to claim 1, wherein: Second limiting sliding grooves are arranged at both ends of the second supporting arm in a penetrating manner, and the second locking rod is movably arranged in the second limiting sliding grooves.
4. A three-joint arm mechanism according to claim 3, wherein: The other end of the second supporting arm is provided with a movable recess, one end of the third supporting arm is provided with a universal ball head, the universal ball head is movably arranged in the movable recess, and the second limiting sliding grooves are in communication with the movable recess.
5. A tri-articulated boom mechanism according to claim 4, wherein: A side wall of the other end of the second supporting arm is provided with a avoiding notch, and the avoiding notch is in communication with the movable recess.
6. A tri-articulated boom mechanism according to claim 1, wherein: The other end of the third supporting arm is provided with a plurality of connecting holes.
7. A tri-articulated boom mechanism according to claim 1, wherein: A hydraulic rod is arranged in the first supporting arm, one end of the hydraulic rod is rotationally connected with the inner wall of the first supporting arm, and the other end of the hydraulic rod is rotationally connected with the connecting base.
8. A tri-articulated boom mechanism according to claim 1, wherein: The locking assembly comprises a locking knob, a rotating shaft, a first locking block and a second locking block, the first locking block and the second locking block are coaxially connected, the first locking block and the second locking block are fixedly sleeved on the outer periphery of the rotating shaft, the rotating shaft is rotationally arranged at the other end of the first supporting arm, the locking knob is arranged at one end of the rotating shaft and located on the outer side wall of the other end of the first supporting arm, the first locking block is correspondingly arranged with the first locking rod, and the second locking block is correspondingly arranged with the second locking rod.
9. A tri-articulated boom mechanism according to claim 8, wherein: A first displacement inclined surface is arranged on one side of the first locking block close to the first locking rod, one end of the first locking rod close to the first locking block is provided with a first abutting inclined surface, and the first abutting inclined surface is in sliding abutment with the first displacement inclined surface. A second displacement inclined surface is arranged on one side of the second locking block close to the second locking rod, one end of the second locking rod close to the second locking block is provided with a second abutting inclined surface, and the second abutting inclined surface is in sliding abutment with the second displacement inclined surface.
10. A three-joint boom mechanism according to claim 8, wherein: One end of the first supporting arm is provided with a first rotating block, one end of the second supporting arm is provided with a second rotating block, the first rotating block and the second rotating block are rotatably connected to the side wall of each other, the first locking block is sleeved in the first rotating block, and the second locking block is sleeved in the second rotating block; the locking assembly further comprises an elastic reset member, the elastic reset member is movably sleeved on the outer periphery of the first locking block or / and the second locking block, and two ends of the elastic reset member are connected to the first rotating block and the second rotating block respectively.