Support arm rotation locking structure, four-connecting-rod support arm device and medical equipment

Abstract

The utility model discloses a support arm rotation locking structure, a four-connecting-rod support arm device and medical equipment. The four-connecting-rod support arm device comprises a first support arm and a second support arm which are rotationally connected, the locking piece is arranged on one of the first supporting arm and the second supporting arm, and the locking matching piece is arranged on the other one of the first supporting arm and the second supporting arm; and the position switching mechanism is installed on one of the first supporting arm and the second supporting arm provided with the locking piece, the locking piece is connected to the position switching mechanism, the locking piece is an elastic component, and the position switching mechanism drives the locking piece to achieve locking matching and separation unlocking between the locking piece and the locking matching piece. The locking piece is driven to move through the position switching mechanism, so that the locking piece and the locking matching piece are locked or unlocked, and the first supporting arm and the second supporting arm are locked or unlocked. The locking piece is an elastic component, the locking piece deforms when being stressed so as to adapt to the stress condition, and in the locking process, the locking piece clamping phenomenon caused by uncertain factors can be avoided.

Description

Technical Field

[0001] This utility model relates to the field of locking structure technology, and more specifically, to a support arm rotation locking structure. Furthermore, this utility model also relates to a four-bar support arm device including the above-mentioned support arm rotation locking structure, and a medical device including the four-bar support arm device. Background Technology

[0002] With the development of medical technology, medical equipment such as ultrasound diagnostic equipment and endoscopic diagnostic equipment are widely used in clinical medicine.

[0003] To meet the needs of medical staff, the displays and control panels of some medical equipment, such as ultrasound diagnostic equipment and endoscopic diagnostic equipment, are rotatably or movably connected to the equipment support. This allows the displays and / or control panels to be rotated to the required angle or moved to the required position. Once rotated or moved into place, the position or orientation of the displays and / or control panels needs to be fixed using the support arm rotation locking structure to facilitate use by medical staff.

[0004] However, the existing arm rotation locking structure is prone to jamming when locking the display or control panel to the equipment support.

[0005] Therefore, how to prevent the outrigger rotation locking structure from jamming during the locking process is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0006] In view of this, the purpose of this utility model is to provide a support arm rotation locking structure that can prevent the support arm rotation locking structure from getting stuck during the locking process.

[0007] Another objective of this utility model is to provide a four-bar linkage arm device including the above-mentioned arm rotation locking structure to prevent jamming during the locking process.

[0008] Another objective of this invention is to provide a medical device including the above-mentioned four-bar linkage arm device, which is not easily jammed when the arm rotation locking structure locks the four-bar linkage arm device.

[0009] To achieve the above objectives, this utility model provides the following technical solution:

[0010] A boom rotation locking structure includes:

[0011] The first arm and the second arm are rotatably connected;

[0012] A locking element and a locking engagement element, wherein the locking element is disposed in one of the first support arm and the second support arm, and the locking engagement element is disposed in the other of the first support arm and the second support arm;

[0013] A position switching mechanism is installed in one of the first and second arms, which is provided with the locking member. The locking member is connected to the position switching mechanism and is an elastic member. The position switching mechanism drives the locking member to achieve locking and unlocking between the locking member and the locking mating member.

[0014] Optionally, the position switching mechanism includes a driving mechanism, a sliding member, and a sliding groove; the sliding member is connected to the driving mechanism and slides within the sliding groove under the drive of the driving mechanism; the locking member is connected to the sliding member.

[0015] Optionally, the locking element includes:

[0016] The locking block is connected to the sliding member via a connecting shaft and is used to achieve locking with the locking mating member;

[0017] A first elastic element, disposed on the connecting shaft, is used to provide an elastic force to the locking block to press the locking mating element.

[0018] Optionally, the connecting shaft passes through the sliding groove, the locking block and the sliding member are located at the two ends of the connecting shaft, and the locking block is slidably disposed in the sliding groove.

[0019] Optionally, the first elastic member is arranged along the axial direction of the connecting shaft and is located on the outer periphery of the connecting shaft. The first end of the first elastic member abuts against the locking block. The connecting shaft is provided with a shoulder, and the second end of the first elastic member abuts against the shoulder. The connecting shaft passes through the locking block, and the connecting shaft is provided with a limiting member to prevent the locking block from disengaging.

[0020] Optionally, the locking component is a gear; the locking block has a toothed portion that engages with the tooth groove of the gear.

[0021] Optionally, the locking block is provided with a U-shaped groove, and the two ends of the opening of the U-shaped groove form two toothed portions.

[0022] Optionally, the position switching mechanism includes a guide rail, and the sliding groove is formed in the guide rail.

[0023] Optionally, the driving mechanism includes a driving member and a grooved wheel connected to the driving member. The grooved wheel abuts against the sliding member so that the driving member drives the grooved wheel to rotate, thereby causing the grooved wheel to push the sliding member to slide within the sliding groove.

[0024] Optionally, the sliding member includes a bracket and a rotatable roller connected to the bracket via a roller shaft, the locking member is connected to the bracket, and the roller abuts against the grooved wheel.

[0025] Optionally, the grooved wheel has a first groove and a second groove, the distance from the first groove to the axis of rotation of the grooved wheel is greater than the distance from the second groove to the axis of rotation; the first groove and the second groove can be switched to cooperate with the roller to realize the back-and-forth sliding of the sliding member.

[0026] Optionally, the sliding groove is further provided with a second elastic element and a baffle, the two ends of the second elastic element abutting against the sliding element and the baffle respectively, for providing an elastic force to the sliding element to press the grooved wheel.

[0027] Optionally, the drive mechanism further includes two opposing support walls, with a rotatable axle connected between the two support walls, and the grooved wheel connected to the axle.

[0028] Optionally, at least one end of the axle extends outside the corresponding support wall, and the driving member is connected to the portion of the axle extending out of the support wall; the driving member is a lever.

[0029] Alternatively, the drive member is connected to the axle, and the drive member is a power member for outputting rotational power to the axle.

[0030] A four-bar linkage device includes: any one of the above-mentioned linkage rotation locking structures.

[0031] A medical device includes a device support, a display, and a control panel, wherein at least one of the display and the control panel is connected to the device support via the aforementioned four-bar linkage.

[0032] The arm rotation locking structure provided by this utility model allows the first and second arms to be locked relative to each other when the position switching mechanism drives the locking member to move towards the locking mating member, and the locking member engages with the locking mating member. This locking mechanism achieves relative locking of the first and second arms by engaging the locking member with the locking mating member. Since the locking member is an elastic component, even if the locking member is subjected to force due to improper engagement with the locking mating member, the locking member can be elastically adjusted to cope with the force caused by uncertain factors, thereby avoiding the locking member from jamming and the connecting shaft from being unable to switch.

[0033] When it is necessary for the first arm and the second arm to rotate relative to each other, the position switching mechanism drives the locking member to move away from the locking engagement member, thereby disengaging the locking member from the locking engagement member and unlocking the first arm and the second arm, allowing the first arm and the second arm to rotate relative to each other.

[0034] It can be seen that the arm rotation locking structure drives the locking member to move through the position switching mechanism, thereby locking or unlocking the locking member and the locking mating member, thus realizing the relative locking or unlocking of the first arm and the second arm. Moreover, since the locking member is an elastic member, it can elastically adjust when subjected to force to adapt to the force conditions. Therefore, during the locking process of the locking member and the locking mating member, the phenomenon of the locking member getting stuck due to uncertain factors can be avoided, ensuring the reliability of locking and unlocking of the first arm and the second arm.

[0035] The four-bar linkage support arm device provided by this utility model includes the above-mentioned support arm rotation locking structure, and has the above-mentioned beneficial effects.

[0036] The medical device provided by this utility model includes the above-mentioned four-bar linkage device and has the above-mentioned beneficial effects. Attached Figure Description

[0037] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0038] Figure 1 A schematic diagram of the support arm rotation locking structure provided in a specific embodiment of this utility model;

[0039] Figure 2 A schematic diagram of the structure when the locking element and the locking mating element are engaged and locked.

[0040] Figure 3 A cross-sectional view showing the position of the Geneva wheel when locked.

[0041] Figure 4 A schematic diagram showing the position of the lever when locked;

[0042] Figure 5 This is a schematic diagram of the structure when the locking element and the locking mating element are unlocked;

[0043] Figure 6 A cross-sectional view showing the position of the Geneva wheel when unlocked;

[0044] Figure 7A structural diagram showing the position of the lever when unlocked;

[0045] Figure 8 This is a schematic diagram of the structure of the four-bar linkage device provided in a specific embodiment of the present utility model;

[0046] Figure 9 for Figure 8 The diagram shows the structure of the four-bar linkage when connecting the first and second devices.

[0047] Figures 1 to 9 The accompanying figure labels are as follows:

[0048] 1-First support arm; 2-Second support arm; 3-Locking component; 31-Locking block; 311-Toothed part; 312-Limiting groove; 32-First elastic component; 4-Locking mating component; 5-Connecting shaft; 51-Shoulder; 6-Limiting retaining ring; 7-Sliding groove; 71-Guide rail; 8-Gate wheel; 81-First groove; 82-Second groove; 9-Sliding component; 91-Roller frame; 92-Roller shaft; 93-Roller; 10-Second elastic component; 11-Baffle; 12-Support wall; 13-Wheel axle; 14-Lever; 15-First support arm connecting rod; 16-Second support arm connecting rod; 17-Third support arm connecting rod; 18-Fourth support arm connecting rod; 19-First device; 20-Second device. Detailed Implementation

[0049] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0050] The core of this invention is to provide a support arm rotation locking structure that prevents the support arm rotation locking structure from jamming during the locking process. Another core aspect of this invention is to provide a four-bar support arm device including the aforementioned support arm rotation locking structure, preventing jamming during the locking process. Yet another core aspect of this invention is to provide a medical device including the aforementioned four-bar support arm device, which is less prone to jamming when the support arm rotation locking structure locks the four-bar support arm device.

[0051] Please refer to Figure 1 , Figure 2 and Figure 3This utility model embodiment provides a support arm rotation locking structure, including a first support arm 1, a second support arm 2, a locking member 3, a locking engagement member 4, and a position switching mechanism. The first support arm 1 and the second support arm 2 are rotatably connected. The locking member 3 is disposed in one of the first support arm 1 and the second support arm 2, and the locking engagement member 4 is disposed in the other of the first support arm 1 and the second support arm 2. The position switching mechanism is installed in one of the first support arm 1 and the second support arm 2 where the locking member 3 is disposed. The locking member 3 is connected to the position switching mechanism, and the locking member 3 is an elastic member. The position switching mechanism achieves the locking engagement between the locking member 3 and the locking engagement member 4 by driving the locking member 3 (e.g., ...). Figure 2 (as shown) and separate unlocking (as shown) Figure 3 (As shown).

[0052] When it is necessary to lock the first arm 1 and the second arm 2 relative to each other, the position switching mechanism drives the locking member 3 to move towards the locking mating member 4, and the locking member 3 engages with the locking mating member 4. Thus, the locking member 3 and the locking mating member 4 engage to lock the first arm 1 and the second arm 2 relative to each other. Since the locking member 3 is an elastic member, even if the locking member 3 is subjected to force due to improper engagement between the locking member 3 and the locking mating member 4, the locking member 3 can be elastically adjusted to cope with the force caused by uncertain factors, thereby avoiding the situation where the locking member 3 is stuck and the position switching mechanism cannot perform the switching action.

[0053] When it is necessary for the first arm 1 and the second arm 2 to rotate relative to each other, the position switching mechanism drives the locking member 3 to move away from the locking engagement member 4, so that the locking member 3 disengages from the locking engagement member 4, thereby unlocking the first arm 1 and the second arm 2, and allowing the first arm 1 and the second arm 2 to rotate relative to each other.

[0054] It should be noted that the locking element 3 can be switched between two different positions by a position switching mechanism, thereby realizing the locking and unlocking between the locking element 3 and the locking mating element 4. For example, the position switching mechanism can drive the locking element 3 to switch between a locked position and an unlocked position. When the locking element 3 is in the locked position, the locking element 3 and the locking mating element 4 are locked together; when the locking element 3 is in the unlocked position, the locking element 3 and the locking mating element 4 are separated and unlocked.

[0055] It can be seen that the arm rotation locking structure provided by this utility model drives the locking member 3 to move through the position switching mechanism, thereby locking or unlocking the locking member 3 and the locking mating member 4, thus realizing the relative locking or unlocking of the first arm 1 and the second arm 2. Moreover, since the locking member 3 is an elastic member, the elastic member can elastically adjust when subjected to force to adapt to the force conditions. Therefore, during the locking process of the locking member 3 and the locking mating member 4, the phenomenon of the locking member 3 getting stuck due to uncertain factors can be avoided, ensuring the reliability of locking and unlocking of the first arm 1 and the second arm 2.

[0056] It should be noted that this embodiment does not limit the specific structure of the first arm 1 and the second arm 2, as long as they have a rotatable connection.

[0057] In some embodiments, the first arm 1 and the second arm 2 can be two of the four-bar linkages that have a rotatable connection. The four-bar linkage can be applied between the device support and control panel of the medical device, or between the device support and the display, to achieve relative rotation and locking between the control panel and the device support, or between the display and the device support. The medical device can be an ultrasound diagnostic device or an endoscopy diagnostic device. Correspondingly, the device support can be the top of the main unit of the ultrasound diagnostic device (which can be used to support the control panel and the mechanisms on it), or a support extending from the control panel of the ultrasound diagnostic device (which can be used to support the display), or it can be a trolley bracket of the endoscopy diagnostic device.

[0058] In addition, it should be noted that this embodiment does not limit the specific structure of the position switching mechanism, as long as the position switching mechanism can drive the locking member 3 to move so as to realize the locking engagement and unlocking between the locking member 3 and the locking engagement member 4.

[0059] In some embodiments, the position switching mechanism includes a driving mechanism, a slider 9, and a sliding groove 7; the slider 9 is connected to the driving mechanism and slides within the sliding groove 7 by the driving mechanism; the locking member 3 is connected to the slider 9.

[0060] In other words, this embodiment utilizes a driving mechanism to provide driving force, which drives the sliding member 9 to slide within the sliding groove 7. This causes the sliding member 9 to move the locking member 3, thereby achieving locking and unlocking between the locking member 3 and the locking mating member 4. The sliding groove 7 provides guidance and limitation for the sliding member 9, ensuring the correctness of its movement direction and the smoothness of its movement. This, in turn, ensures the reliability of the movement of the locking member 3, and consequently, the reliability of the locking between the locking member 3 and the locking mating member 4. This helps prevent the locking member 3 and the locking mating member 4 from jamming during the locking process.

[0061] Additionally, it should be noted that in the above embodiments, the locking member 3 can be an elastic member with its own elasticity, such as an elastic block, or it can be an elastic component formed by a combination of elastic and rigid members. As long as the locking member 3 as a whole has elasticity and can be elastically adjusted under force, it is acceptable.

[0062] Please refer to Figure 2 and Figure 3 In some embodiments, the locking member 3 includes a locking block 31 and a first elastic member 32. The locking block 31 is connected to the sliding member 9 via a connecting shaft 5 and is used to lock with the locking mating member 4. The first elastic member 32 is located on the connecting shaft 5 and is used to provide the locking block 31 with an elastic force to press the locking mating member 4. That is, in this embodiment, when the driving mechanism drives the sliding member 9 to slide in the sliding groove 7, the sliding member 9 drives the locking block 31 to move via the connecting shaft 5. During the locking process of the locking member 3 and the locking mating member 4, the locking block 31 contacts and engages with the locking mating member 4. When the locking block 31 is not properly engaged with the locking mating member 4, causing the locking block 31 to be under force, the locking block 31 squeezes the first elastic member 32, compressing the first elastic member 32 to cope with the force on the locking block 31 and prevent the locking block 31 from jamming. At the same time, the first elastic member 32 generates an elastic force on the locking block 31, keeping the locking block 31 in a state of pressing the locking mating member 4, thereby ensuring the locking of the locking block 31 and the locking mating member 4.

[0063] Furthermore, in some embodiments, the connecting shaft 5 passes through the sliding groove 7, and the locking block 31 and the sliding member 9 are respectively located at both ends of the connecting shaft 5, with the locking block 31 slidably disposed in the sliding groove 7.

[0064] In other words, in this embodiment, the sliding groove 7 is not only used to guide and limit the sliding member 9, but also has a certain extension length to set the connecting shaft 5 and allow the locking block 31 to slide within the sliding groove 7. That is, the sliding groove 7 also plays a guiding and limiting role for the locking block 31, so that when the driving mechanism drives the sliding member 9 to move the locking block 31, both the sliding member 9 and the locking block 31 move along the direction defined by the sliding groove 7, so as to ensure the correctness of the movement direction and the smoothness of the movement of the locking block 31, and ensure the accuracy of the position of the locking block 31. This is beneficial to improving the alignment accuracy when the locking block 31 and the locking mating member 4 are locked together, and improving the reliability of the locking.

[0065] It is understandable that the connecting shaft 5 is a shaft-shaped component that passes through the sliding groove 7, which facilitates the connection between the sliding component 9 and the locking block 31, and realizes the motion transmission from the sliding component 9 to the locking block 31.

[0066] It should be noted that this embodiment does not limit the specific method of forming the sliding groove 7. For example, the sliding groove 7 can be directly formed on the first arm 1 or the second arm 2, or the position switching mechanism can include a guide rail 71, and the sliding groove 7 is formed in the guide rail 71. That is, two parallel guide rails 71 are fixed on the first arm 1 or the second arm 2, and the sliding groove 7 is formed by the gap between the two guide rails 71. Alternatively, a U-shaped structural member is fixed on the first arm 1 or the second arm 2, and the sliding groove 7 is formed by the U-shaped groove of the U-shaped structural member.

[0067] In addition, it should be noted that the above embodiments do not limit the specific connection structure between the first elastic member 32, the locking block 31 and the connecting shaft 5. As long as the locking block 31 can move with the position of the connecting shaft 5, thereby locking or unlocking the locking block 31 and the locking engagement member 4, and the elastic force of the first elastic member 32 can lock the locking block 31 and the locking engagement member 4 tightly and prevent jamming.

[0068] Please refer to Figure 4 and Figure 5 In some embodiments, the first elastic element 32 is arranged along the axial direction of the connecting shaft 5 and located on the outer periphery of the connecting shaft 5. The first end of the first elastic element 32 abuts against the locking block 31. The connecting shaft 5 is provided with a shoulder 51, and the second end of the first elastic element 32 abuts against the shoulder 51. The connecting shaft 5 passes through the locking block 31, and the connecting shaft 5 is provided with a limiting element 6 to prevent the locking block 31 from disengaging. That is to say, in this embodiment, the first elastic element 32 is located between the shoulder 51 and the locking block 31 of the connecting shaft 5. The first elastic element 32 can be a spring or an elastic block, etc. The first elastic element 32 is located on the outer periphery of the connecting shaft 5, which on the one hand helps to save axial space, and on the other hand, the connecting shaft 5 can play a certain limiting and guiding role for the first elastic element 32, preventing the first elastic element 32 from tilting during elastic deformation, and ensuring the reliability of the elastic force applied by the first elastic element 32 to the locking block 31. Furthermore, the connecting shaft 5 passes through the locking block 31 and is connected to the connecting shaft 5 via the limiting member 6, thereby limiting the locking block 31 and positioning it between the first elastic member 32 and the limiting member 6. This allows the locking block 31 to be installed on the connecting shaft 5, preventing it from detaching. The connecting shaft 5 also guides and limits the locking block 31, facilitating adaptive position adjustment of the locking block 31 on the connecting shaft 5 and preventing it from jamming when locked with the locking mating member 4. Through this structure, the first elastic member 32 and the locking block 31 are assembled with the connecting shaft 5, allowing them to move as the position of the connecting shaft 5 changes, thus transmitting motion from the sliding member 9 to the locking block 31.

[0069] It should be noted that this embodiment does not limit the specific structure of the limiting member 6. For example, the limiting member 6 can be a limiting retaining ring 6, and the connecting shaft 5 can be provided with a countersunk groove so that the limiting retaining ring 6 can be installed in the countersunk groove, thereby realizing the installation of the limiting retaining ring 6 on the connecting shaft 5. The limiting member 6 can also be a nut, etc., which is installed by threaded connection with the connecting shaft 5, as long as the limiting member 6 can play a limiting role in locking the locking block 31 and prevent the locking block 31 from disengaging from the connecting shaft 5.

[0070] For further information, please continue to refer to [link / reference]. Figure 4 and Figure 5 In some embodiments, the locking block 31 has a limiting groove 312 on the side facing the first elastic member 32, and the first end of the first elastic member 32 extends into the limiting groove 312. That is to say, in this embodiment, the limiting groove 312 is used to limit the end of the first elastic member 32 near the locking block 31, which is beneficial to achieve rapid positioning of the first elastic member 32 and the locking block 31 during installation, and improves the reliability of the connection between the first elastic member 32 and the locking block 31. At the same time, the limiting groove 312 also has the function of limiting and guiding the first elastic member 32, preventing the first elastic member 32 from tilting, etc.

[0071] In addition, the above embodiments do not limit the specific cooperation relationship between the locking block 31 and the locking mating part 4, as long as the two can cooperate to lock.

[0072] Please refer to Figure 2 and Figure 3 In some embodiments, one of the locking block 31 and the locking engagement member 4 is provided with a toothed portion 311, and the other is provided with a toothed groove for engaging with the toothed portion 311. It is understood that when the locking block 31 and the locking engagement member 4 are locked, the toothed portion 311 is inserted into the toothed groove, and the engagement of the toothed portion 311 with the toothed groove achieves the locking of the locking block 31 and the locking engagement member 4; when the toothed portion 311 disengages from the toothed groove, the locking block 31 and the locking engagement member 4 are unlocked.

[0073] For further information, please continue to refer to [link / reference]. Figure 2 and Figure 3 In some embodiments, the locking component 4 is a gear, and the locking block 31 has a toothed portion 311 that mates with the tooth groove of the gear. That is, in this embodiment, by installing a gear on the first arm 1 or the second arm 2, the tooth groove is formed by the gap between any two adjacent teeth of the gear. Gears are readily available structural components, making processing and assembly convenient. The gear can be a full gear or an incomplete gear, etc. The curvature of an incomplete gear can be determined according to the space constraints, for example, it can be a half gear. Furthermore, the gear can be fixed to the first arm 1 or the second arm 2 using fasteners.

[0074] Furthermore, such as Figure 2 and Figure 3 As shown, in some embodiments, the locking block 31 is provided with a U-shaped groove, and two toothed portions 311 are formed at both ends of the opening of the U-shaped groove. That is, in this embodiment, by opening a U-shaped groove on the locking block 31, two toothed portions 311 are formed at the opposite ends of the U-shaped groove. The two toothed portions 311 engage with the two toothed grooves of the gear for locking, and have two locking position points. Therefore, the locking of the locking block 31 and the locking mating member 4 is more stable and reliable.

[0075] In addition, when the locking block 31 is provided with a U-shaped groove, the connecting shaft 5 passes through the locking block 31 and extends into the U-shaped groove. The limiting member 6 mentioned above is provided at the part of the connecting shaft 5 that protrudes from the bottom of the U-shaped groove. That is, the U-shaped groove can be used to accommodate the limiting member 6 and the part of the connecting shaft 55 that protrudes from the bottom of the U-shaped groove.

[0076] Of course, in other embodiments, the locking block 31 and the locking mating member 4 can also be other mating structures. For example, one of the locking block 31 and the locking mating member 4 is provided with a pin, and the other is provided with a pin hole for engaging with the pin. That is, when the pin is inserted into the pin hole, the locking block 31 and the locking mating member 4 are locked, and when the pin is disengaged from the pin hole, the locking block 31 and the locking mating member 4 are unlocked.

[0077] In addition, the above embodiments do not limit the specific structure of the driving mechanism, as long as the driving mechanism can drive the slider 9 to slide in the sliding groove 7.

[0078] Please combine Figures 2 to 5 In some embodiments, the driving mechanism includes a driving member and a grooved wheel 8 connected to the driving member. The grooved wheel 8 abuts against the sliding member 9 so that the driving member drives the grooved wheel 8 to rotate, causing the grooved wheel 8 to push the sliding member 9 to slide in the sliding groove 7.

[0079] In other words, this embodiment utilizes a driving component to provide rotational power, driving the Geneva wheel 8 to rotate. During the rotation of the Geneva wheel 8, it pushes the slider 9 to slide within the sliding groove 7. This embodiment utilizes the contact between the Geneva wheel 8 and the slider 9 to convert the rotational motion of the driving component into the linear motion of the slider 9 within the sliding groove 7. It can be understood that the Geneva wheel 8 is an eccentric wheel. During its rotation, the Geneva wheel 8 aligns with and contacts the slider 9 at different positions. The length between the contact position of the Geneva wheel 8 and the slider 9 and the axis of rotation of the Geneva wheel 8 continuously changes, thereby enabling the sliding of the slider 9.

[0080] Furthermore, in some embodiments, the grooved wheel 8 is provided with a first groove 81 and a second groove 82, the distance from the first groove 81 to the axis of rotation of the grooved wheel 8 is greater than the distance from the second groove 82 to the axis of rotation of the grooved wheel 8; the first groove 81 and the second groove 82 can be switched to cooperate with the roller 93 to realize the back-and-forth sliding of the slider 9. It can be understood that the first groove 81 and the second groove 82 can be transitioned by an arc-shaped surface, so that the arc-shaped surface abuts against the slider 9 to realize the back-and-forth sliding of the slider 9. When the driving member drives the grooved wheel 8 to rotate, the contact surface between the grooved wheel 8 and the sliding member 9 moves relative to the sliding member 9, thereby aligning different positions of the grooved wheel 8 with the sliding member 9. When the grooved wheel 8 rotates from the position where the second groove 82 aligns with the sliding member 9 to the position where the first groove 81 aligns with the sliding member 9, since the distance from the first groove 81 to the axis of rotation of the grooved wheel 8 is greater than the distance from the second groove 82 to the axis of rotation of the grooved wheel 8, the sliding member 9 extends. This causes the sliding member 9 to drive the connecting shaft 5 to switch the locking member 3 from the unlocked position to the locked position, allowing the locking member 3 to engage with the locking engagement member 4 for locking. When the grooved wheel 8 rotates from the position where the first groove 81 aligns with the sliding member 9 to the position where the second groove 82 aligns with the sliding member 9, the sliding member 9 retracts. This causes the sliding member 9 to drive the connecting shaft 5 to switch the locking member 3 from the locked position to the unlocked position, disengaging the locking member 3 from the locking engagement member 4 and achieving unlocking. It can be seen that this embodiment transforms the rotation of the grooved wheel 8 into the sliding of the sliding member 9, resulting in a compact structure and convenient operation.

[0081] Furthermore, in order to improve the reliability of the contact between the grooved wheel 8 and the sliding member 9, in some embodiments, a second elastic member 10 and a baffle 11 are also provided in the sliding groove 7. The two ends of the second elastic member 10 abut against the sliding member 9 and the baffle 11 respectively. The second elastic member 10 is used to provide the sliding member 9 with an elastic force to press the grooved wheel 8.

[0082] In other words, in this embodiment, the second elastic element 10 is disposed between the sliding element 9 and the baffle 11. The baffle 11 stops and limits the end of the second elastic element 10 away from the sliding element 9 to resist the squeezing force applied to the second elastic element 10 by the sliding element 9 when the grooved wheel 8 rotates. Under the limiting action of the baffle 11, the second elastic element 10 generates an elastic force on the sliding element 9, so that the sliding element 9 always has a tendency to move in the direction of the grooved wheel 8, so that the sliding element 9 always reliably abuts against the grooved wheel 8, thereby ensuring the reliability of the motion transmission from the grooved wheel 8 to the sliding element 9 and avoiding the generation of false displacement, etc. Understandably, during the rotation of the grooved wheel 8, for example, when the grooved wheel 8 rotates from the position where the second groove 82 is aligned with the sliding member 9 to the position where the first groove 81 is aligned with the sliding member 9, the squeezing force generated by the grooved wheel 8 on the sliding member 9 causes the sliding member 9 to squeeze the second elastic member 10. Under the limiting action of the baffle 11, the second elastic member 10 is in a compressed state, thereby enabling the sliding member 9 to drive the locking member 3 to engage with the locking engagement member 4 for locking. When the grooved wheel 8 rotates in the opposite direction, from the position where the first groove 81 is aligned with the sliding member 9 to the position where the second groove 82 is aligned with the sliding member 9, the second elastic member 10 recovers its deformation, and then under the action of the elastic force of the second elastic member 10, the sliding member 9 is pressed against the grooved wheel 8 to reset.

[0083] Furthermore, in some embodiments, the connecting shaft 5 slidably passes through the baffle 11, and the second elastic member 10 is sleeved on the outer periphery of the connecting shaft 5. That is, in this embodiment, the second elastic member 10 is sleeved on the outer periphery of the connecting shaft 5 and can extend and retract axially along the outer periphery of the connecting shaft 5. The connecting shaft 5 limits the extension and retraction direction of the second elastic member 10, preventing the second elastic member 10 from tilting, etc. In addition, the connecting shaft 5 slidably passes through the baffle 11 so that the connecting shaft 5 can extend beyond the baffle 11 to the locking member 3, realizing the connection between the connecting shaft 5 and the locking member 3, and avoiding the baffle 11 affecting the movement of the connecting shaft 5.

[0084] In some embodiments, the first elastic member 32 and the second elastic member 10 mentioned above are both sleeved on the outer periphery of the connecting shaft 5. The inner diameter of the second elastic member 10 is larger than the outer diameter of the first elastic member 32. One end of the first elastic member 32 extends into the interior of the second elastic member 10 to abut against the shoulder 51 provided on the connecting shaft 5.

[0085] Furthermore, please combine Figures 2 to 5To reduce the friction between the sliding member 9 and the grooved wheel 8, in some embodiments, the sliding member 9 includes a bracket 91 and a rotatable roller 93 connected to the bracket 91 via a roller shaft 92. The locking member 3 is connected to the bracket 91, and the roller 93 abuts against the grooved wheel 8. That is, when the grooved wheel 8 rotates, the roller 93 rolls relative to the contact surface between the grooved wheel 8 and the roller 93, resulting in rolling friction between the roller 93 and the grooved wheel 8. Simultaneously, as the grooved wheel 8 aligns with the roller 93 at different positions, the roller 93 rolls relative to the grooved wheel 8, while simultaneously pushing the roller frame 91 to move via the roller shaft 92. This causes the roller frame 91 to move the locking member 3, thereby achieving locking between the locking member 3 and the locking mating member 4. The rolling friction between the roller 93 and the grooved wheel 8 results in low friction, reducing wear on both the grooved wheel 8 and the roller 93 and improving the accuracy of motion transmission.

[0086] It should be noted that this embodiment does not limit the specific connection method between the locking member 3 and the roller frame 91, as long as the connection between the two can be achieved. For example, when the sliding member 9 and the locking member 3 are respectively located at both ends of the connecting shaft 5, the connecting shaft 5 and the roller frame 91 are connected by threads, thereby achieving an indirect connection between the roller frame 91 and the locking member 3, so that the locking member 3 slides with the roller frame 91 relative to the sliding groove 7.

[0087] Furthermore, in order to improve the smoothness of the relative movement between the roller 93 and the grooved wheel 8 during the rotation of the grooved wheel 8, in some embodiments, the ends of the first groove 81 and the second groove 82 are respectively provided with arc-shaped transition structures for smooth connection with the contact surface of the grooved wheel 8 located between the first groove 81 and the second groove 82 and for abutting against the roller 93. That is, the groove end of the first groove 81 facing the second groove 82 and the groove end of the second groove 82 facing the first groove 81 are both provided with arc-shaped transition structures, so that the groove ends of the first groove 81 and the second groove 82 are smoothly connected with the contact surface, thereby facilitating the roller 93 to enter and exit the first groove 81 and the second groove 82 and improving the smoothness of position switching.

[0088] In addition, the above embodiments do not limit the specific arrangement of the grooved wheel 8, as long as the grooved wheel 8 can rotate.

[0089] Please refer to Figure 2 and Figure 3In some embodiments, the drive mechanism further includes two opposing support walls 12, with a rotatable axle 13 connected between the two support walls 12, and the grooved wheel 8 connected to the axle 13. That is, in this embodiment, the two support walls 12 support the axle 13, and the axle 13 supports the grooved wheel 8, allowing the grooved wheel 8 and the axle 13 to rotate together, and the grooved wheel 8 is positioned between the two support walls 12, which provide some shielding and protection for the grooved wheel 8. Therefore, this embodiment avoids directly creating a structure for mounting the grooved wheel 8 on the first arm 1 or the second arm 2. During installation, the grooved wheel 8, the axle 13, and the support walls 12 are assembled, and then the support walls 12 are connected to the first arm 1 or the second arm 2.

[0090] Additionally, please continue to refer to Figure 2 and Figure 3 To facilitate the rotation of the Geneva wheel 8, in some embodiments, at least one end of the axle 13 extends outside the corresponding support wall 12 and is connected to a drive member located outside the support wall 12. That is, in this embodiment, the drive member drives the axle 13 to rotate, thereby causing the axle 13 to drive the Geneva wheel 8 to rotate, which facilitates the application of rotational force to the Geneva wheel 8.

[0091] It should be noted that this embodiment does not limit the specific structure of the driving component or its driving method. In some embodiments, the driving component includes a rotating component for manual operation. That is, in this embodiment, the rotating component is manually rotated by applying an external force to drive the wheel axle 13 to rotate, which is simple to operate. Further details can be found in the following references. Figure 6 and Figure 7 To save effort, in some embodiments, the rotating component is a lever 14. That is, manually moving the lever 14 drives the axle 13 to rotate using the lever principle, saving external force. It is understood that the relative position of the first groove 81 and the second groove 82 determines the rotation range of the lever 14. Specifically, when the lever 14 rotates to the locked position, the first groove 81 aligns with the sliding member 9; when the lever 14 rotates to the unlocked position, the second groove 82 aligns with the sliding member 9. In some embodiments, the rotation range of the lever 14 is 90 degrees; that is, when the lever 14 switches between the locked and unlocked positions, a 90-degree rotation is sufficient. For example, when the lever 14 is in a horizontal state (e.g....), Figure 6 As shown), lever 14 is in the locked position. When lever 14 is in the vertical position (as shown), Figure 7 As shown), lever 14 is in the unlocked position. In other embodiments, the rotating element can be a knob.

[0092] Of course, in other embodiments, the driving component can also be an automatic driving device with its own driving force. That is, the driving component is a power component for outputting rotational power to the wheel axle 13. When it is necessary to rotate the grooved wheel 8, the driving component is activated to output rotational power to the wheel axle 13, so that the driving component drives the wheel axle 13 to rotate. This facilitates automatic control of locking or unlocking between the first support arm 1 and the second support arm 2.

[0093] In addition to the aforementioned arm rotation locking structure, this utility model also provides a four-bar linkage arm device including the arm rotation locking structure disclosed in the above embodiments.

[0094] It is understood that the four-bar linkage includes arms with a rotatable connection. For two of the arms in the four-bar linkage with a rotatable connection, the arm rotation locking structure disclosed in the above embodiments can be used to ensure that the four-bar linkage includes at least the beneficial effects of the arm rotation locking structure, which will not be elaborated further here. The structure of other parts of the four-bar linkage can be referred to in related technologies.

[0095] For example, such as Figure 8 As shown, the four-bar linkage includes a first arm link 15, a second arm link 16, a third arm link 17, and a fourth arm link 18. The first arm link 15 is rotatably connected to the second arm link 16, the second arm link 16 is rotatably connected to the third arm link 17, and the third arm link 17 is rotatably connected to the fourth arm link 18. The end of the first arm link 15 away from the second arm link 16 and the end of the fourth arm link 18 away from the third arm link 17 are respectively used to connect with the first device 19 (e.g., ...). Figure 9 (As shown) the connection, the end of the second arm link 16 away from the first arm link 15, the end of the third arm link 17 away from the fourth arm link 18, and the second device 20 (as shown) Figure 9(As shown) The three are connected by rotating through the same shaft. The number of the aforementioned arm rotation locking structures is at least one, and the arm rotation locking structure is formed between at least one of the following: between the first arm link 15 and the second arm link 16, between the second arm link 16 and the third arm link 17, and between the third arm link 17 and the fourth arm link 18. When the arm rotation locking structure is formed between the first arm link 15 and the second arm link 16, one of the first arm link 15 and the second arm link 16 is the first arm 1, and the other is the second arm 2. When the arm rotation locking structure is formed between the second arm link 16 and the third arm link 17, one of the second arm link 16 and the third arm link 17 is the first arm 1, and the other is the second arm 2. When the arm rotation locking structure is formed between the third arm link 17 and the fourth arm link 18, one of the third arm link 17 and the fourth arm link 18 is the first arm 1, and the other is the second arm 2.

[0096] In other words, the four-bar linkage provided in this embodiment includes three rotational connections: the rotational connection between the first arm linkage 15 and the second arm linkage 16, the rotational connection between the second arm linkage 16 and the third arm linkage 17, and the rotational connection between the third arm linkage 17 and the fourth arm linkage 18. This embodiment uses an arm rotation locking structure to lock at least one of these three rotational connections, so that the four-bar linkage is at least partially locked to limit the rotation and / or translation of the four-bar linkage, thereby limiting the relative position of the first device 19 and the second device 20.

[0097] It should be noted that this embodiment does not limit the specific structure of the first device 19 and the second device 20, as long as they need to achieve relative motion in the plane.

[0098] Please refer to Figure 9 In addition to the aforementioned arm rotation locking structure and four-bar linkage device, this utility model also provides a medical device including the four-bar linkage device disclosed in the above embodiments. This medical device further includes a device support, a display, and a control panel. At least one of the display and the control panel is connected to the device support via the four-bar linkage device. For example, the display and the device support and / or the control panel and the device support are connected via the four-bar linkage device. When the four-bar linkage device is provided between the device support and the control panel, at least a portion of the first device 19 constitutes the device support, and the control panel is the second device 20; when the four-bar linkage device is provided between the display and the device support, at least a portion of the first device 19 constitutes the device support, and the display is the second device. For example, as... Figure 9The first device 19 is the main unit of the ultrasound diagnostic equipment, and the top of the main unit constitutes the equipment support. The second device 20 is the control panel. For details on the specific structure and function of the equipment support in related embodiments, please refer to relevant technical documents; these details will not be elaborated upon here.

[0099] The key feature of this embodiment is the use of the aforementioned four-bar linkage. The four-bar linkage, employing the arm rotation locking structure described above, can at least partially lock the control panel. Therefore, when the control panel is connected to the equipment support via the four-bar linkage, it can rotate or translate relative to the equipment support, enabling the control panel to move within a plane relative to the equipment support. This makes the control panel's position more flexible. Furthermore, when the control panel reaches the desired position, its position can be locked using the arm rotation locking structure. Similarly, when the display is connected to the equipment support via the aforementioned four-bar linkage, it can rotate or translate relative to the equipment support, enabling the display to move within a plane relative to the equipment support. This also makes the display's position more flexible. And, when the display reaches the desired position, its position can be locked using the arm rotation locking structure.

[0100] This medical device has the same beneficial effects as the aforementioned outrigger rotation locking structure, which will not be elaborated here.

[0101] It should also be noted that, in this specification, relational terms such as first and second are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations.

[0102] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0103] The foregoing has provided a detailed description of the outrigger rotation locking structure, four-bar linkage outrigger device, and medical equipment provided by this utility model. Specific examples have been used to illustrate the principles and implementation methods of this utility model. The descriptions of the embodiments above are merely for the purpose of helping to understand the method and core ideas of this utility model. It should be noted that those skilled in the art can make various improvements and modifications to this utility model without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A boom rotation lock structure characterized by comprising: include: The first arm (1) and the second arm (2) are rotatably connected; Locking element (3) and locking engagement element (4), wherein the locking element (3) is provided in one of the first support arm (1) and the second support arm (2), and the locking engagement element (4) is provided in the other of the first support arm (1) and the second support arm (2); A position switching mechanism is installed in one of the first arm (1) and the second arm (2) and is provided with the locking member (3). The locking member (3) is connected to the position switching mechanism and is an elastic member. The position switching mechanism realizes the locking engagement and unlocking of the locking member (3) and the locking engagement member (4) by driving the locking member (3).

2. The arm rotation lock structure according to claim 1, wherein The position switching mechanism includes a driving mechanism, a sliding member (9) and a sliding groove (7); the sliding member (9) is connected to the driving mechanism and slides in the sliding groove (7) by the driving mechanism; the locking member (3) is connected to the sliding member (9).

3. The arm rotation lock structure according to claim 2, wherein The locking element (3) includes: The locking block (31) is connected to the sliding member (9) via the connecting shaft (5) and is used to lock in conjunction with the locking mating member (4); The first elastic element (32) is provided on the connecting shaft (5) for providing the locking block (31) with an elastic force to press the locking mating element (4).

4. The arm rotation lock structure according to claim 3, wherein The connecting shaft (5) passes through the sliding groove (7), and the locking block (31) and the sliding member (9) are located at the two ends of the connecting shaft (5), respectively. The locking block (31) is slidably disposed in the sliding groove (7).

5. The arm rotation lock structure according to claim 3, wherein The first elastic member (32) is arranged along the axial direction of the connecting shaft (5) and located on the outer periphery of the connecting shaft (5). The first end of the first elastic member (32) abuts against the locking block (31). The connecting shaft (5) is provided with a shoulder (51). The second end of the first elastic member (32) abuts against the shoulder (51). The connecting shaft (5) passes through the locking block (31), and the connecting shaft (5) is provided with a limiting member (6) to prevent the locking block (31) from disengaging.

6. The arm rotation lock structure according to claim 3, wherein The locking component (4) is a gear; the locking block (31) is provided with a toothed portion (311) that engages with the tooth groove of the gear.

7. The arm rotation lock structure according to claim 6, wherein The locking block (31) is provided with a U-shaped groove, and two toothed portions (311) are formed at both ends of the opening of the U-shaped groove.

8. The arm rotation lock structure according to claim 2, wherein The position switching mechanism includes a guide rail (71), and the sliding groove (7) is formed in the guide rail (71).

9. The boom rotation lock structure according to any one of claims 2 to 8, characterized by The driving mechanism includes a driving member and a grooved wheel (8) connected to the driving member. The grooved wheel (8) abuts against the sliding member (9) so that the driving member drives the grooved wheel (8) to rotate, so that the grooved wheel (8) pushes the sliding member (9) to slide in the sliding groove (7).

10. The arm rotation lock structure according to claim 9, wherein The sliding piece (9) comprises a support (91) and a rotatable roller (93) connected to the support (91) through a roller shaft (92), the locking piece (3) is connected with the support (91), and the roller (93) is in abutment with the groove wheel (8).

11. The arm rotation lock structure according to claim 10, wherein The groove wheel (8) is provided with a first groove (81) and a second groove (82), the distance from the first groove (81) to the rotating shaft of the groove wheel (8) is greater than the distance from the second groove (82) to the rotating shaft, and the first groove (81) and the second groove (82) are switchably matched with the roller (93) to realize the back-and-forth sliding of the sliding piece (9).

12. The boom rotation lock structure according to claim 9, wherein The sliding groove (7) is further provided with a second elastic piece (10) and a baffle (11), two ends of the second elastic piece (10) are respectively in abutment with the sliding piece (9) and the baffle (11), and the second elastic piece (10) is used for providing the sliding piece (9) with an elastic force for pressing the groove wheel (8).

13. The boom rotation lock structure according to claim 9, characterized by The driving mechanism further comprises two oppositely arranged supporting walls (12), and a rotatable wheel shaft (13) is connected between the two supporting walls (12), and the groove wheel (8) is connected with the wheel shaft (13).

14. The arm rotation lock structure according to claim 13, wherein At least one end of the wheel shaft (13) protrudes outside the corresponding supporting wall (12), the driving piece is connected with the part of the wheel shaft (13) protruding outside the supporting wall (12), and the driving piece is a pull rod (14). Alternatively, the driving piece is connected with the wheel shaft (13), and the driving piece is a power piece for outputting rotary power to the wheel shaft (13).

15. A four-bar linkage jib apparatus, characterized by, The device support part, the display and the control panel are connected through the four-bar linkage support arm device. The device support part, the display and the control panel are connected through the four-bar linkage support arm device.

16. A medical device, characterized by ​

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