Holding arm assembly for shifting machine

Abstract

The utility model relates to the technical field of auxiliary displacement instruments and equipment, in particular to a holding arm assembly for a displacement machine. Comprising a chest leaning bottom plate and rotary arm holding plates hinged to the two ends of the chest leaning bottom plate, two sliding push plates are arranged on one side of the chest leaning bottom plate in a sliding mode, the two sliding push plates are horizontally arranged on the chest leaning bottom plate, a gap is formed between the two sliding push plates, and a power mechanism is fixedly arranged on the chest leaning bottom plate; the power mechanism drives the two sliding push plates to be close to or away from each other, the ends of the sliding push plates are made to be away from or make contact with the rotary arm holding plates, springs are arranged on the rotary arm holding plates, and one ends of the springs are connected to the chest rest bottom plate. The rotary arm holding plates hinged to the two ends of the chest rest bottom plate are pushed away through the two sliding push plates arranged on one side of the chest rest bottom plate in a sliding mode, a convenient unfolding angle is provided, and the chest rest can adapt to more users.

Description

Technical Field

[0001] This utility model relates to the field of auxiliary displacement equipment technology, and in particular to a clamping arm assembly for a displacement machine. Background Technology

[0002] With the rapid pace of social progress, the number of elderly people and those with mobility impairments is increasing daily. Their daily lives often require assistance, such as standing up, walking, using the toilet, or bathing, where they need support to maintain balance. To help people with mobility impairments walk normally, assistive devices such as mobility aids are often used. However, existing mobility aids only allow the arm assembly to rise and fall; the arm plate cannot extend outwards to accommodate different users. Summary of the Invention

[0003] To address the issue that existing transfer machines' arm assemblies can only be raised and lowered, and the arm plates within the arm assemblies cannot be extended outwards to accommodate different users, this invention proposes an arm assemblies for transfer machines. By using two sliding push plates slidably disposed on one side of the chest-to-base plate, the rotating arm plates hinged at both ends of the chest-to-base plate are pushed open, providing a convenient opening angle and accommodating more users.

[0004] To achieve the above objectives, the technical solution of this utility model is as follows:

[0005] A lifting arm assembly for a patient transfer machine includes a chest-support base plate and a rotating lifting arm plate hinged to both ends of the chest-support base plate. Two sliding push plates are slidably disposed on one side of the chest-support base plate, horizontally positioned on the chest-support base plate with a gap between them. A power mechanism is fixedly mounted on the chest-support base plate, driving the two sliding push plates to move closer or further apart, causing the ends of the sliding push plates to move away from or contact the rotating lifting arm plate. A spring is mounted on the rotating lifting arm plate, with one end of the spring connected to the chest-support base plate. The spring provides an inward retraction force to the rotating lifting arm plate, facilitating its retraction after deployment.

[0006] Furthermore, both sliding push plates are provided with through holes, and the chest rest base plate is provided with a sliding groove. A sliding rod is fixed in the through hole, with one end of the sliding rod extending out of the through hole and into the sliding groove, allowing it to slide within the groove. This ensures the stability of the sliding rod during its sliding process.

[0007] Furthermore, the power mechanism includes a motor, two racks, and a gear. The motor is fixed to the base plate of the chest rest via a mounting plate. The two racks are respectively fixed to two sliding push plates. The gear is connected and fixed to the output end of the motor, and is located between and meshes with the two racks. The two racks are arranged horizontally, and the gear is located between and meshes with the two racks.

[0008] Furthermore, the mounting plate and power mechanism are located on the side of the base plate near the rotating arm plate. The mounting plate is positioned between the motor and the rack. A limiting plate is fixed to the side of the mounting plate near the rack. The limiting plate has limiting portions at both its upper and lower ends. The longitudinal section of the limiting plate is a transverse "U" shape, and the rack is located between the two limiting portions. The limiting portion at the upper end of the limiting plate contacts the upper side of the rack located above, and the limiting portion at the lower end of the limiting plate contacts the lower side of the rack located below.

[0009] Furthermore, both the chest support base plate and the rotating arm plate are fixed with support columns, and the ends of the springs are fixed to the support columns.

[0010] Furthermore, the rotating arm plate has an abutment portion on the side near the chest-to-bottom plate, and a silent wheel is rotatably mounted on the end of the sliding push plate near the rotating arm plate. The silent wheel contacts the abutment portion of the rotating arm plate when the two sliding push plates move away from each other. The abutment portion facilitates the unfolding of the rotating arm plate.

[0011] Furthermore, the two rotating arm plates are located on the same side of the chest-to-bottom plate and are on the same horizontal line. One end of the upper sliding push plate is on the same horizontal line as the other rotating arm plate. An extension is provided on one end of the lower sliding push plate, and this extension is on the same horizontal line as the other rotating arm plate. A predetermined gap is provided between the extension of the lower sliding push plate and one end of the upper sliding push plate to avoid positional interference.

[0012] Furthermore, hinge seats are fixed at both ends of the chest support base plate, and the mounting part at the end of the rotating arm plate is connected to the hinge seats through a hinge shaft.

[0013] Furthermore, a chest cushion is provided on the side of the chest support base plate near the rotating arm plate.

[0014] Furthermore, an armrest is fixed to one side of the chest rest base plate, and the armrest is located on the side of the chest rest base plate away from the rotating armrest plate.

[0015] The beneficial effects of this utility model through the above technical solution are as follows:

[0016] 1. In this utility model, the two ends of the chest rest base plate are hinged with rotating arm plates, and two sliding push plates are slidably arranged on one side of the chest rest base plate. The power mechanism drives the two sliding push plates to move closer or further apart, pushing the rotating arm plates hinged at both ends of the chest rest base plate open. The spring is used to provide the rotating arm plates with inward force, so that they can retract easily after being unfolded. This arm assembly can provide a more convenient unfolding angle and can accommodate more users.

[0017] 2. In this utility model, the gear on the output end of the motor drives the racks fixed on the two sliding push plates to move away from each other and contact the rotating arm plate, thereby driving the rotating arm plate to unfold outward.

[0018] 3. In this utility model, a through hole is provided on the sliding push plate, and a sliding groove is provided on the bottom plate. A sliding rod is fixed in the through hole, one end of which extends into the sliding groove and can slide in the groove. At the same time, a limit plate is fixed on the side of the mounting plate near the rack to limit the movement of the rack, thereby ensuring the stability of the sliding push plate. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of a shifting machine according to the present invention;

[0020] Figure 2 This is a schematic diagram of the structure of a lifting arm assembly for a transfer machine according to the present invention;

[0021] Figure 3 This is a schematic diagram of the hidden chest support pad of the arm assembly for a transfer machine according to the present invention;

[0022] Figure 4 This utility model relates to a gripper assembly for a transfer machine. Figure 3 Enlarged view of the structure at point A in the middle;

[0023] Figure 5 This is a partial structural cross-sectional view of the mounting plate, limiting plate, and sliding push plate of a transfer machine arm assembly according to this utility model.

[0024] Figure 6 This is a schematic diagram of the gear and rack meshing structure of a lifting arm assembly for a shifting machine according to the present invention;

[0025] Figure 7 This is a schematic diagram of the chest support base plate of a lifting arm assembly for a transfer machine according to the present invention;

[0026] Figure 8 This is a schematic diagram of the rotating arm plate of a transfer machine arm assembly according to the present invention.

[0027] In the attached diagram, the following numbers are used: 1 is the transfer machine, 2 is the base, 3 is the caster wheel, 4 is the armrest, 5 is the arm arm assembly, 6 is the outer shell, 7 is the limiting plate, 11 is the chest backrest base plate, 111 is the slide groove, 112 is the hinge seat, 12 is the rotating arm arm plate, 121 is the abutment part, 122 is the mounting part, 123 is the hinge shaft, 13 is the sliding push plate, 131 is the through hole, 132 is the extension part, 133 is the connector, 14 is the spring, 15 is the sliding rod, 16 is the mounting plate, 161 is the motor, 162 is the rack, 163 is the gear, 17 is the support column, 18 is the silent wheel, and 19 is the chest backrest pad. Detailed Implementation

[0028] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:

[0029] like Figures 1 to 8 As shown, this embodiment provides a bolster assembly for a transfer machine, including a chest support base plate 11 and a rotating bolster plate 12 hinged to both ends of the chest support base plate 11. The two ends of the chest support base plate 11 are fixed with hinge seats 112, and the mounting part 122 at the end of the rotating bolster plate 12 is connected to the hinge seat 112 through a hinge shaft 123.

[0030] Two sliding push plates 13 are slidably arranged on one side of the chest rest base plate 11, and the two sliding push plates 13 are horizontally arranged on the chest rest base plate 11.

[0031] refer to Figure 3 and Figure 4 Both sliding push plates 13 are provided with through holes 131, and the chest rest base plate 11 is provided with a sliding groove 111. A sliding rod 15 is fixed in the through hole 131. One end of the sliding rod 15 extends out of the through hole 131 and into the sliding groove 111 and can slide in the sliding groove 111.

[0032] Each sliding push plate 13 has two through holes 131, and the chest rest base plate 11 has four sliding grooves 111, two at the top and two at the bottom (see reference). Figure 7 In this embodiment, the sliding rod 15 is a screw, which is fixed in the through hole 131 by a nut. The other end of the sliding rod 15 enters the slide groove 111 and extends out of the slide groove 111. Its end is also fixed with a nut, so as to realize the stable sliding of the sliding push plate 13 on the chest base plate 11.

[0033] A power mechanism is fixedly installed on the base plate 11 of the chest rest. The power mechanism drives two sliding push plates 13 to move closer or further apart, causing the ends of the sliding push plates 13 to move away from or contact the rotating arm plate 12. (Refer to...) Figure 3 , Figure 4 and Figure 6 The power mechanism includes a motor 161, two racks 162 and a gear 163. The motor 161 is fixed to the chest base plate 11 by a mounting plate 16. There is a gap between the two sliding push plates 13. The two racks 162 are respectively fixed on the two sliding push plates 13. The gear 163 is connected and fixed to the output end of the motor 161. The gear 163 is located between the two racks 162 and meshes with the two racks 162.

[0034] In this embodiment, the mounting plate 16 and the power mechanism are located on the side of the chest rest base plate 11 near the rotating armrest plate 12. The mounting plate 16 is located between the motor 161 and the rack 162. The mounting plate 16 is fixed to the chest rest base plate 11 by bolts. The output end of the motor 161 passes through the mounting plate 16 and a gear 163 is fixed at its end. The two racks 162 are arranged horizontally up and down.

[0035] The rack 162 is fixed to the side of the sliding push plate 13 near the chest rest base plate 11. The sliding rod 15 passes through the sliding push plate 13 and the rack 162 in sequence and then extends into the slide groove 111. The other side of the rack 162 contacts the chest rest base plate 11.

[0036] refer to Figure 3 , Figure 4 and Figure 5 A limiting plate 7 is fixed to the side of the mounting plate 16 near the rack 162. The limiting plate 7 has limiting portions at both its upper and lower ends. The longitudinal section of the limiting plate 7 is a transverse "U" shape, with the rack 162 located between the two limiting portions. The upper limiting portion of the limiting plate 7 contacts the upper side of the rack 162 located above, and the lower limiting portion of the limiting plate 7 contacts the lower side of the rack 162 located below. The limiting plate 7 cooperates with the sliding rod 15 to ensure the stable sliding of the sliding push plate 13.

[0037] refer to Figure 3 The rotating armrest plate 12 is equipped with a spring 14, one end of which is connected to the chest rest base plate 11. Specifically, both the chest rest base plate 11 and the rotating armrest plate 12 are fixed with support columns 17, and support columns 17 are provided on both sides of the rotating armrest plate 12. The ends of the springs 14 are fixed to the support columns 17. The springs 14 pull the rotating armrest plate 12 to the retracted position (e.g., Figure 2 (This prevents it from opening when not in use.)

[0038] In this embodiment, when the motor 161 starts, it drives the gear 163 to rotate, which in turn drives the rack 162 to move away from each other. When it reaches the appropriate position, the motor 161 stops working, and its output shaft will not continue to rotate, so that the rack 162 can always stay in this appropriate position. This motor 161 can be made using existing technology, so it will not be described in detail.

[0039] To ensure the stable rotation of the rotating arm plate 12, an abutment portion 121 is provided on the side of the rotating arm plate 12 near the chest-bottom plate 11 (e.g., Figure 8A silent wheel 18 is rotatably mounted on one end of the sliding push plate 13 near the rotating arm plate 12. The silent wheel 18 contacts the abutment portion 121 of the rotating arm plate 12 when the two sliding push plates 13 move away from each other. A connector 133 is fixed to each of the two sliding push plates 13 at their far ends, and a silent wheel 18 is rotatably mounted on the connector 133. The silent wheel 18 is made of PU polyurethane material, which effectively reduces noise.

[0040] The two rotating arm plates 12 are located on the same side of the chest-support base plate 11 and are on the same horizontal line. One end of the upper sliding push plate 13 is on the same horizontal line as the other rotating arm plate 12. The lower sliding push plate 13 has an extension 132 on one end, which is on the same horizontal line as the other rotating arm plate 12. To ensure that the lower sliding push plate 13 can contact the abutment part 121 on the rotating arm plate 12, an upwardly extending extension 132 is provided on one end of the lower sliding push plate 13. The extension 132 is fixed with a connector 133. A preset gap is provided between the extension 132 of the lower sliding push plate 13 and one end of the upper sliding push plate 13 to avoid positional interference when they are close to each other.

[0041] A chest cushion 19 is provided on the side of the chest support base plate 11 near the rotating armrest plate 12. The chest cushion 19 is used for the human chest to rest against, covering the other parts on the chest support base plate 11.

[0042] A handrail 4 is fixed to one side of the chest rest base plate 11, and the handrail 4 is located on the side of the chest rest base plate 11 away from the rotating armrest plate 12.

[0043] In use, the gear 163 fixed on the output shaft of the motor 161 drives the two racks 162 to move away from each other, thereby causing the sliding rod 15 on the sliding push plate 13 to slide in the slide groove 111. At this time, the silent wheel 18 on the end connector 133 of the sliding push plate 13 contacts the side of the abutment part 121, thereby causing the rotating arm plate 12 hinged to both ends of the chest rest base plate 11 to open outward. After opening to a certain angle, the motor 161 is turned off, and the rotating arm plate 12 remains in this position. In this state, the output shaft of the motor 161 no longer rotates, and the spring 14 pulls the rotating arm plate 12 to prevent it from opening outward again, thus completing the opening of the rotating arm plate 12. This allows for a more convenient unfolding angle, accommodating more users.

[0044] The embodiments described above are merely preferred embodiments of this utility model and are not intended to limit the scope of implementation of this utility model. Therefore, all equivalent changes or modifications made to the structure, features and principles described in the patent claims of this utility model should be included within the scope of the patent application of this utility model.

Claims

1. A boom assembly for a shift machine, characterized by, The utility model provides a chest rest bottom plate (11) and the rotating arm embracing plate (12) hinged at both ends of chest rest bottom plate (11), one side of chest rest bottom plate (11) is provided with two sliding push plates (13) slidingly, two sliding push plates (13) are horizontally arranged on chest rest bottom plate (11), and power mechanism is fixed on chest rest bottom plate (11), power mechanism drives two sliding push plates (13) to approach or move away from each other, and the end of sliding push plate (13) moves away from or contacts rotating arm embracing plate (12), spring (14) is arranged on rotating arm embracing plate (12), and one end of spring (14) is connected to chest rest bottom plate (11).

2. The arm assembly of claim 1, wherein, Two sliding push plates (13) are provided with through holes (131), chest rest bottom plate (11) is provided with a sliding slot (111), sliding rod (15) is fixed in through hole (131), and one end of sliding rod (15) extends out of through hole (131) and extends into sliding slot (111) and can slide in sliding slot (111).

3. The arm assembly of claim 1, wherein: The power mechanism includes a motor (161), two racks (162) and a gear (163), the motor (161) is fixed on the chest rest bottom plate (11) through the mounting plate (16), the two racks (162) are fixed on the two sliding push plates (13) respectively, the gear (163) is connected and fixed with the output end of the motor (161), and the gear (163) is located between the two racks (162) and is engaged with the two racks (162).

4. The arm assembly for a transfer machine according to claim 3, characterized in that, The mounting plate (16) and the power mechanism are located on the side of the chest rest bottom plate (11) close to the rotating arm embracing plate (12), the mounting plate (16) is located between the motor (161) and the rack (162), and the side of the mounting plate (16) close to the rack (162) is fixed with a limiting plate (7), the upper and lower ends of the limiting plate (7) are provided with limiting portions, the longitudinal section of the limiting plate (7) is in the shape of a horizontally arranged "U", and the rack (162) is located between the two limiting portions.

5. The arm assembly of claim 1, wherein, The chest rest bottom plate (11) and the rotating arm embracing plate (12) are fixed with support columns (17), and the ends of the spring (14) are fixed on the support columns (17).

6. The arm assembly of claim 1, wherein, The side of the rotating arm embracing plate (12) close to the chest rest bottom plate (11) is provided with an abutting portion (121), and the end of the sliding push plate (13) close to the rotating arm embracing plate (12) is rotatably provided with a mute wheel (18), which contacts the abutting portion (121) of the rotating arm embracing plate (12) when the two sliding push plates (13) move away from each other.

7. The arm assembly of claim 1, wherein, The two rotating arm embracing plates (12) are located on the same side of the chest rest bottom plate (11), and the two rotating arm embracing plates (12) are located on the same horizontal line, the side end of the upper sliding push plate (13) is located on the same horizontal line with the rotating arm embracing plate (12) on one side, and the side end of the lower sliding push plate (13) is provided with an extension portion (132), which is located on the same horizontal line with the rotating arm embracing plate (12) on the other side.

8. The arm assembly of claim 1, wherein, The chest leaning bottom plate (11) is fixed with a hinged seat (112) at both ends, and the mounting part (122) of the end of the rotating arm holding plate (12) is connected with the hinged seat (112) through a hinge shaft (123).

9. The arm assembly of claim 1, wherein, The chest leaning bottom plate (11) is provided with a chest leaning pad plate (19) on the side close to the rotating arm holding plate (12).

10. The arm assembly of claim 1, wherein, One side of the chest leaning bottom plate (11) is fixed with a handrail (4), and the handrail (4) is located on the side of the chest leaning bottom plate (11) away from the rotating arm holding plate (12).

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