Foot rod linkage assembly
By designing a foot rod linkage component including sliding base, guide rod, press rod and other components, the problem of troublesome and laborious operation when the accompanying chair is changed from a bed state to a chair is solved, and the chair folding effect is achieved with simple and efficient operation.
Patent Information
- Application Number
- CN202421642742.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-11
- Publication Date
- 2025-06-06
- Estimated Expiration
- 2034-07-11
AI Technical Summary
When the existing escort chair is changed from a bed state to a chair, people need to operate the bed plates on the head and middle and the bed plates on the feet separately, which leads to troublesome and laborious operation.
A foot rod linkage assembly is designed, including a sliding base, guide rod, press rod, pedal, large gear, pinion gear, rack top rod and elastic support. The press rod is rotated by stepping on the pedal, driving the rack top rod to move upwards, and then lift the head support, and form a chair back through the push of the middle and head support.
The escort chair is folded from the bed state into a chair with simple and efficient operation, reducing the difficulty and effort of manpower operation.
Smart Images
Figure CN222942050U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of mechanical equipment and particularly to a foot rod linkage component. Background Art
[0002] The accompanying chair is a foldable accompanying chair for medical wards. It can be used for sitting or lying, and can be folded up to reduce the occupied space. It can be used as an accompanying bed in the medical ward or as a widened bed to place treatment devices and items. It is easy to use.
[0003] The accompanying chair can be turned into a bed after unfolding, but when changing from a bed to a chair, a person needs to stand between the head bed board and the middle bed board, lift and rotate them, lift and fold them upward, and then push the foot bed board, so that the head bed board and the middle bed board are folded to form the backrest of the chair, and the foot bed board forms the seat cushion of the chair. Since a person stands on the outside between the head bed board and the middle bed board and lifts them, he needs to push the foot bed board together, so manual operation is troublesome and laborious.
[0004] In summary, in order to solve the deficiencies in the prior art, it is necessary to design a foot rod linkage assembly that is labor-saving to operate and assists in folding. Utility Model Content
[0005] The utility model provides a foot rod linkage component to solve the problems of the prior art.
[0006] The cam is secured to the chassis and is located adjacent to the chassis, and the cam is secured to the chassis by the gear train, while the cam is secured to the chassis with the gear train being secured to the chassis.
[0007] As a further improvement, a vertical plate is provided on the sliding base, and a second sliding groove is provided in the vertical plate for the rack top rod to slide up and down.
[0008] As a further improvement, the elastic support member includes a guide post and a spring, the guide post is slidably arranged on the foot bracket, and the spring is sleeved on the guide post.
[0009] A further improvement is that the pedal is arranged to be inclined downward.
[0010] Compared with the prior art, the foot rod linkage assembly of the utility model has the following beneficial effects:
[0011] The person is at the rear end of the foot support, and then steps on the pedal to make the pressure rod rotate counterclockwise, which drives the large gear to rotate counterclockwise, and the transmission drives the rack push rod to move upward. Since the driving wheel is a large gear with a larger diameter, the two small gears with small diameters can rotate multiple circles, which makes the rack push rod rise a greater distance, and the head support is lifted upward by the rack push rod, with a greater lifting distance, which is convenient for subsequent pushing closer; the middle support and the head support are gradually moved to the right and erected under the continuous push to form a chair back. The operation is simple and efficient, and it is convenient for the folding bed to be transformed into a chair. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 This is a schematic diagram of the structure of the utility model
[0013] Figure 2 This is a structural diagram of the transmission process of the utility model
[0014] Figure 3 for Figure 1 Structural diagram of a partial position in the middle
[0015] Figure 4 for Figure 1 Structural diagram of the second enlarged view of the local position
[0016] In the figure, 1-sliding base, 11-guide rod one, 12-guide rod two, 13-vertical plate, 14-slide groove two, 2-pressure rod, 3-pedal, 4-large gear, 5-small gear, 6-rack top rod, 7-elastic support, 71-guide column, 72-spring, 8-head bracket, 81-slide groove one, 9-foot bracket. DETAILED DESCRIPTION
[0017] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.
[0018] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0019] The following is combined with the embodiments and attached Figures 1 to 4 , the technical solution of the utility model is further elaborated.
[0020] Example 1
[0021] A foot rod linkage assembly comprises: a sliding base 1, a guide rod 11, a guide rod 2 12, a pressure rod 2, a pedal 3, a large gear 4, a small gear 5, a rack top rod 6 and an elastic support member 7, wherein the sliding base 1 is arranged to slide horizontally on both sides of a slide slot 81 of a head bracket 8, the guide rod 11 passes through the slide slot 81 and is fixedly connected to the sliding base 1, the guide rod 2 passes through the slide slot 81 and is fixedly connected to the sliding base 1, the pressure rod 2 is rotatably sleeved on the guide rod 11, and the The pedal 3 is fixed to the left end of the pressure rod 2, the elastic support member 7 is arranged on the foot bracket 9 and is located at the lower end of the pedal 3, the large gear 4 is sleeved on the guide rod 1 11 and fixedly connected to the pressure rod 2, the small gear 5 is rotatably arranged on the guide rod 2 12 and is meshed with the large gear 3 on the left side, and two groups of small gears 5 and guide rod 2 12 are arranged, and the rack top rod 6 is vertically slidably arranged on the sliding base 1, and the left side of the rack top rod 6 is meshed with the small gear 5 and is located below the head bracket 8.
[0022] like Figure 1 to Figure 4 As shown, the use principle of the utility model is: the person is at the rear end of the foot support 9, and then steps on the pedal 3 to make the pressure rod 2 rotate counterclockwise, and the pressure rod 2 drives the large gear 4 to rotate counterclockwise, and the transmission drives the rack push rod 6 to move upward. Since the driving wheel is the large gear 4 with a larger diameter, the two small gears 5 with a smaller diameter can rotate multiple circles, so that the rack push rod 6 can rise a larger distance, and the head support 8 is pushed upward by the rack push rod 6, so that the left side of the head support 8 is lifted clockwise, which will drive the right side of the middle support to rotate counterclockwise and lift up, and then push the foot support 9 to the right from the rear end to make the middle support gradually approach the head support 8. At this time, the pedal 44 can be released, and it moves in the opposite direction under the action of the elastic support 7. The middle support and the head support are gradually moved to the right and erected under the continuous push to form a chair back. The operation is simple and efficient, and it is convenient to transform the folding bed into a chair.
[0023] As a further preferred embodiment, a vertical plate 13 is provided on the sliding base 1, and a sliding groove 14 is provided in the vertical plate 13 for the rack top rod 6 to slide up and down.
[0024] As a further preferred embodiment, the elastic support member 7 includes a guide column 71 and a spring 72, wherein the guide column 71 is slidably disposed on the foot support 9, and the spring 72 is sleeved on the guide column 71. The elastic support member 7 supports the bottom of the pedal 3 so that the pedal 3 will not fall downward when not in use, thereby ensuring space for stepping on.
[0025] As a further preferred embodiment, the pedal 3 is tilted downward to facilitate the operator to step on it comfortably.
[0026] The preferred specific embodiments of the utility model are described in detail above. It should be understood that ordinary technicians in this field can make many modifications and changes based on the concept of the utility model without creative work. Therefore, all technical solutions that can be obtained by technicians in this technical field based on the concept of the utility model through logical analysis, reasoning or limited experiments on the basis of the existing technology should be within the scope of protection determined by the claims.
Claims
1. A foot rod linkage assembly, characterized in that: include: The gear train is connected with the gear train by the two guide wheels, and the two guide wheels are connected with the gear train in a fixed manner, so that the two guide wheels can be connected with each other in a fixed manner.
2. A foot rod linkage assembly according to claim 1, characterized in that: The sliding base is provided with a vertical plate, and the vertical plate is provided with a second sliding groove for the rack top rod to slide up and down.
3. A foot rod linkage assembly according to claim 1, characterized in that: The elastic support member comprises a guide post and a spring. The guide post is slidably arranged on the foot support, and the spring is sleeved on the guide post.
4. A foot rod linkage assembly according to claim 1, characterized in that: The pedal is arranged to be inclined downward.