A bed lifting handle assembly

Abstract

The utility model discloses a sickbed lifting handle subassembly, including the mounting shaft, the end of mounting shaft is connected with the one end of driving handle fixedly, and the other end of driving handle is hinged with the hinge block. The utility model discloses through the grip adjustment handle, can make convenient control limit disc and the plug -in axle driving hinge block along driving handle inside rotation, conveniently make driving handle drive mounting shaft rotate, and through fixed handle driving limit stud along adjustment handle inside sliding, can conveniently adjust the overall length of adjustment handle, the effect of being convenient for user rotation, through the first rubber bushing of adjustment handle surface package, can play convenient increase adjustment handle surface grip friction, simultaneously through the rotation of the compression screw sleeve, can make the compression screw sleeve drive compression disc and first rubber bushing surface extrude, conveniently limit fixed handle and the effect of adjustment handle, and through the second rubber bushing of compression screw sleeve surface package, can increase grip compression screw sleeve friction.

Description

Technical Field

[0001] This utility model relates to the field of lifting crank technology, and in particular to a lifting crank assembly for a hospital bed. Background Technology

[0002] A bed lifting crank is a mechanical operating component used to control the raising and lowering of the back, legs, or the entire bed. It is usually installed at the head or foot of the bed and can be adjusted to different angles by manual cranking. It is mainly used in hospital wards, nursing homes, and home care scenarios, and is especially suitable for patients with limited mobility or who require special care. The medical bed crank is an important component connecting the bed frame and the bed board, used to adjust the height and angle of the bed board. It is generally composed of a handle, a lever, a connecting rod, and other components.

[0003] Existing height-adjustable hand cranks have a fixed length, which means that users need to reach under the bed to grip the crank, which is relatively short and located under the bed, requiring them to squat down. To address this issue, we propose a height-adjustable hand crank assembly for hospital beds. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a bed lifting crank assembly.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A bed lifting crank assembly includes a mounting shaft, one end of which is fixedly connected to one end of a drive handle, and the other end of the drive handle is hinged to a hinge block. A plug shaft is installed inside the drive handle via a bearing, and a limit plate is fixedly connected to the outer end of the plug shaft. A handle assembly is fixedly connected to the outer end of the limit plate, and a limit mechanism is provided on the surface of the handle assembly.

[0006] Preferably, the surface diameter of the limiting disc is the same as the end surface diameter of the hinge block.

[0007] Preferably, the handle assembly includes a fixed crank handle, the fixed crank handle is fixedly connected to the surface of the limiting plate, and an adjusting crank handle is sleeved on the surface of the fixed crank handle.

[0008] Preferably, the surface of the adjusting handle is covered with a first rubber sleeve, and the surface of the first rubber sleeve is provided with anti-slip texture.

[0009] Preferably, the limiting mechanism includes a limiting stud, the limiting stud is fixedly connected to the end surface of the fixed crank handle, and a pressing sleeve is threaded on the surface of the limiting stud, and a pressing disc is fixedly connected to the bottom end of the pressing sleeve.

[0010] Preferably, both the adjusting handle and the first rubber sleeve have strip-shaped grooves on their surfaces that are adapted to the limiting studs, and the surface diameter of the pressing plate is larger than the width of the strip-shaped grooves.

[0011] Preferably, the surface of the press-fit screw sleeve is covered with a second rubber sleeve, and the surface of the second rubber sleeve is provided with anti-slip texture.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This device allows for easy control of the limit plate and the connecting shaft to rotate the hinge block along the inside of the handle by gripping the adjustment handle. This facilitates the rotation of the mounting shaft by the handle and the sliding of the limit stud along the inside of the adjustment handle by fixing the handle. This allows for easy adjustment of the overall length of the adjustment handle and facilitates the user's rotation.

[0013] 2. This device can increase the gripping friction of the crank handle by adjusting the first rubber sleeve covering the surface of the crank handle. At the same time, the rotation of the pressing screw sleeve can cause the pressing screw sleeve to drive the pressing plate to press against the surface of the first rubber sleeve, which can facilitate the limiting and fixing of the crank handle and the adjustment of the crank handle. Furthermore, the second rubber sleeve covering the surface of the pressing screw sleeve can increase the gripping friction of the pressing screw sleeve. Attached Figure Description

[0014] Figure 1 This is a three-dimensional schematic diagram of a bed lifting crank assembly proposed in this utility model; Figure 2 for Figure 1 A three-dimensional schematic diagram of the limit plate and handle assembly structure in the middle; Figure 3 for Figure 1 A three-dimensional cross-sectional view of the adjusting handle and the first rubber sleeve structure; Figure 4 for Figure 1 A three-dimensional cross-sectional diagram of the limiting stud and pressing plate structure.

[0015] In the diagram: 1. Mounting shaft; 2. Drive handle; 3. Hinge block; 4. Insert shaft; 5. Limiting plate; 6. Handle assembly; 61. Fixed crank handle; 62. Adjustable crank handle; 63. First rubber sleeve; 7. Limiting mechanism; 71. Limiting stud; 72. Pressing screw sleeve; 73. Pressing disc; 74. Second rubber sleeve. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0017] Reference Figure 1-4 A bed lifting crank assembly includes a mounting shaft 1, one end of which is fixedly connected to one end of a drive handle 2, and the other end of the drive handle 2 is hinged to a hinge block 3. A plug shaft 4 is mounted inside the drive handle 2 via a bearing, and a limit plate 5 is fixedly connected to the outer end of the plug shaft 4. The plug shaft 4 is driven to rotate within the hinge block 3 by the limit plate 5, which facilitates the rotation of the mounting shaft 1 by the handle assembly 6 via the hinge block 3 and the drive handle 2. The handle assembly 6 is fixedly connected to the outer end of the limit plate 5, and a limit mechanism 7 is provided on the surface of the handle assembly 6.

[0018] Furthermore, refer to Figure 2 and Figure 3 It can be seen that the surface diameter of the limiting disk 5 is the same as the end surface diameter of the hinge block 3. By making the surface diameter of the limiting disk 5 the same as the end surface diameter of the hinge block 3, the limiting disk 5 can easily drive the insertion shaft 4 to rotate within the hinge block 3.

[0019] Furthermore, refer to Figure 2 and Figure 3 It can be seen that the handle assembly 6 includes a fixed crank 61, the fixed crank 61 is fixedly connected to the surface of the limiting plate 5, and an adjusting crank 62 is sleeved on the surface of the fixed crank 61. By adjusting the crank 62, a groove adapted to the fixed crank 61 is opened in the groove, so that the fixed crank 61 can move along the groove, which makes it convenient to adjust the length between the adjusting crank 62 and the fixed crank 61, making it convenient for the user to grip and use.

[0020] Furthermore, refer to Figure 2 and Figure 3 It can be seen that the surface of the adjusting handle 62 is covered with a first rubber sleeve 63, and the surface of the first rubber sleeve 63 is provided with anti-slip texture. The first rubber sleeve 63 covering the surface of the adjusting handle 62 can play a buffering and protective role, avoiding the wear and tear on the palm caused by directly gripping the adjusting handle 62. At the same time, the anti-slip texture on the surface of the first rubber sleeve 63 can increase the friction of gripping the first rubber sleeve 63, preventing the hand from slipping when gripping the first rubber sleeve 63.

[0021] Furthermore, refer to Figure 3 and Figure 4It can be seen that the limiting mechanism 7 includes a limiting stud 71. The limiting stud 71 is fixedly connected to the end surface of the fixed crank 61, and a pressing sleeve 72 is threaded on the surface of the limiting stud 71. A pressing plate 73 is fixedly connected to the bottom end of the pressing sleeve 72. By rotating the pressing sleeve 72, the pressing plate 73 can be easily driven. When the pressing sleeve 72 drives the pressing plate 73 to press against the surface of the first rubber sleeve 63, the functions of the fixed crank 61 and the adjusting crank 62 can be conveniently limited. When the pressing sleeve 72 drives the pressing plate 73 away from the surface of the first rubber sleeve 63, the adjusting crank 62 can be easily moved along the surface of the fixed crank 61, and the lengths of the fixed crank 61 and the adjusting crank 62 can be adjusted.

[0022] Furthermore, refer to Figure 3 and Figure 4 It can be seen that the surfaces of the adjusting handle 62 and the first rubber sleeve 63 are both provided with strip-shaped through grooves that are adapted to the limiting stud 71. The surface diameter of the pressing plate 73 is larger than the width of the strip-shaped through groove. By adjusting the strip-shaped through grooves on the surfaces of the adjusting handle 62 and the first rubber sleeve 63, the limiting stud 71 can be moved along the strip-shaped through groove, which plays the role of limiting and fixing the handle 61 and the adjusting handle 62. At the same time, because the surface diameter of the pressing plate 73 is larger than the width of the strip-shaped through groove, the pressing sleeve 72 can drive the pressing plate 73 to press against the surface of the first rubber sleeve 63, which can facilitate the function of limiting the limiting stud 71.

[0023] Furthermore, refer to Figure 3 and Figure 4 It can be seen that the surface of the press-fit screw sleeve 72 is covered with a second rubber sleeve 74, and the surface of the second rubber sleeve 74 is provided with anti-slip texture. The second rubber sleeve 74 covering the surface of the press-fit screw sleeve 72 can play a buffering and protective role. At the same time, the anti-slip texture on the surface of the second rubber sleeve 74 can increase the friction of gripping the second rubber sleeve 74.

[0024] Working principle: When this utility model is in use, when the mounting shaft 1 is in use, according to the attached... Figure 1 Appendix Figure 2 Appendix Figure 3 and attached Figure 4 By gripping and rotating the pressing screw sleeve 72, the pressing screw sleeve 72 can drive the pressing plate 73 away from the surface of the first rubber sleeve 63. At this time, pulling the adjusting handle 62 can move the adjusting handle 62 along the surface of the fixed handle 61. After the adjusting handle 62 is adjusted, rotating the pressing screw sleeve 72 can press the pressing plate 73 onto the surface of the first rubber sleeve 63, which facilitates the function of the limiting fixed handle 61 and the adjusting handle 62. Thus, turning the adjusting handle 62 can cause the limiting plate 5 to drive the insertion shaft 4 and the hinge block 3 to open, and rotating the adjusting handle 62 can cause the drive handle 2 to drive the mounting shaft 1 to rotate. The above is the complete working principle of this utility model.

[0025] In this utility model, the installation, connection or setting methods of all the components mentioned above are common mechanical methods, and the specific structure, model and coefficient index of all the components are their own technologies. As long as they can achieve their beneficial effects, they can be implemented, so they will not be described in detail.

[0026] The above embodiments are preferred embodiments of the present utility model, but the embodiments of the present utility model are not limited to the above embodiments. Any changes, modifications, substitutions, combinations, or simplifications made without departing from the spirit and principle of the present utility model shall be considered equivalent substitutions and shall be included within the protection scope of the present utility model.

[0027] In this utility model, unless otherwise stated, directional terms such as "up, down, left, right, front, back, inside, outside, and vertical and horizontal" in the terminology only represent the orientation of the term in its conventional use or are common names understood by those skilled in the art, and should not be regarded as limitations on the term. At the same time, numerals such as "first," "second," and "third" do not represent specific quantities or orders, but are only used to distinguish names. Moreover, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a series of elements includes not only those elements, but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

Claims

1. A bed lifting crank assembly, comprising a mounting shaft (1), characterized in that, The end of the mounting shaft (1) is fixedly connected to one end of the drive handle (2), and the other end of the drive handle (2) is hinged to a hinge block (3). The drive handle (2) is fitted with a plug shaft (4) through a bearing, and the outer end of the plug shaft (4) is fixedly connected to a limit plate (5). The outer end of the limit plate (5) is fixedly connected to a handle assembly (6), and a limit mechanism (7) is provided on the surface of the handle assembly (6).

2. The bed lifting crank assembly according to claim 1, characterized in that, The surface diameter of the limiting disk (5) is the same as the end surface diameter of the hinge block (3).

3. A bed lifting crank assembly according to claim 1, characterized in that, The handle assembly (6) includes a fixed crank (61), the surface of the limiting plate (5) is fixedly connected to the fixed crank (61), and the surface of the fixed crank (61) is fitted with an adjusting crank (62).

4. A bed lifting crank assembly according to claim 3, characterized in that, The surface of the adjusting handle (62) is covered with a first rubber sleeve (63), and the surface of the first rubber sleeve (63) is provided with anti-slip texture.

5. A bed lifting crank assembly according to claim 3, characterized in that, The limiting mechanism (7) includes a limiting stud (71), the end surface of the fixed crank (61) is fixedly connected to the limiting stud (71), and the surface of the limiting stud (71) is threaded with a pressing sleeve (72), and the bottom end of the pressing sleeve (72) is fixedly connected to a pressing plate (73).

6. A bed lifting crank assembly according to claim 5, characterized in that, The surfaces of the adjusting handle (62) and the first rubber sleeve (63) are both provided with strip-shaped through grooves that are compatible with the limiting stud (71), and the surface diameter of the pressing plate (73) is greater than the width of the strip-shaped through groove.

7. A bed lifting crank assembly according to claim 5, characterized in that, The surface of the press-fit screw sleeve (72) is covered with a second rubber sleeve (74), and the surface of the second rubber sleeve (74) is provided with anti-slip texture.

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