Lifting bed supported by double air rods

Abstract

The utility model belongs to the technical field of medical care beds, and particularly relates to a double-air-rod supporting lifting bed which comprises a bed frame, a base is arranged below the bed frame, a rotating sleeve is rotatably connected to the outer wall of the lower end of the bed frame, a driving assembly is arranged below the bed frame and comprises a cylinder, a threaded sleeve is fixedly connected to the end of the cylinder, and the threaded sleeve is fixedly connected to the end of the cylinder. A protruding block is fixedly connected to the inner wall of the cylinder body. According to the lifting bed supported by the double air rods, a sliding rod, a push rod, a sliding plate, a clamping block and other components are arranged in a driving assembly of the lifting bed, effective protection on a lead screw is achieved, when a bed frame ascends to the highest position, a protruding block in a cylinder can extrude the sliding rod, and then the sliding plate is pushed to extrude the clamping block through the action of an ejector rod and the push rod; when a user rotates the universal joint, the clamping block completely enters the universal joint, so that the clamping relation between the universal joint and the lead screw is relieved, and even if the bed frame is located at the highest position, the user continues to rotate the universal joint, and the lead screw cannot be additionally abraded or damaged.

Description

Technical Field

[0001] The utility model relates to the field of medical bed technology, specifically a double gas spring support lifting bed. Background Technology

[0002] Medical beds refer to devices or other items used on the human body, primarily to provide a comfortable and safe environment for patients to rest, recuperate, observe, and receive treatment.

[0003] Currently, some existing medical beds do not have a dedicated lead screw protection mechanism in their drive components, which makes the lead screw prone to wear or damage under prolonged use or improper operation. This lack of protection may shorten the life of the lead screw, requiring frequent replacement, increasing maintenance costs and inconvenience. In view of this, we propose a dual pneumatic support lifting bed. Summary of the Invention

[0004] The main purpose of this utility model is to provide a double pneumatic support lifting bed that can solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the utility model proposes a double gas spring supported lifting bed, including a bed frame, a base provided below the bed frame, a rotating sleeve rotatably connected to the outer wall of the lower end of the bed frame, and a drive assembly provided below the bed frame, the drive assembly including;

[0006] The cylinder has a threaded sleeve fixedly connected to its end and a protrusion fixedly connected to its inner wall. The protrusion is slidably connected to the screw groove. The protrusion presses against the sliding rod, thereby causing the push rod to move.

[0007] A lead screw passes through and is rotatably connected to a rotating sleeve, and also passes through and is threadedly connected to a threaded sleeve. The end of the lead screw has a groove. A sliding rod is slidably connected to the lead screw. A push rod passes through and is slidably connected to the push rod. The push rod has an inclined surface. When a push rod acts on the inclined surface, the push rod will slide under the force of the push rod. A push rod is located above the push rod and is fixedly connected to the inner wall of the sliding rod. A sliding plate is fixedly connected to the end of the push rod away from the sliding rod. The sliding plate is slidably connected to the inner wall of the lead screw and is elastically connected to the inner wall of the lead screw via a spring.

[0008] Preferably, the lead screw is rotatably connected to a universal joint, the universal joint is slidably connected to a locking block, and the locking block is elastically connected to the inner wall of the universal joint by a spring.

[0009] Preferably, the universal joint is hinged to a rotating rod, the rotating rod passes through the housing and is fixedly connected to the housing, and the housing is fixedly connected to the outer wall of the bed frame.

[0010] Preferably, the rotating rod is slidably connected to a sliding rod, and a handle is fixedly connected to the end of the sliding rod, with the handle hinged to a grip.

[0011] Preferably, a frame is hinged to the end of the cylinder, the frame is connected to the bottom of the bed frame via an auxiliary cylinder, and L-shaped blocks are hinged to both ends of the frame.

[0012] Preferably, the end of the L-shaped block is penetrated by a rod and rotatably connected to the rod. Both ends of the rod are fixedly connected to the outer wall of the bed frame. The rod is hinged to a support rod, and the other end of the support rod is hinged to the base.

[0013] This utility model provides a double gas spring supported lifting bed. It has the following advantages:

[0014] (1) The double pneumatic support lifting bed is equipped with components such as sliding rod, push rod, sliding plate and locking block in the drive assembly, which realizes effective protection of the lead screw. When the bed frame rises to the highest position, the protrusion in the cylinder will squeeze the sliding rod, and then through the action of the push rod and push rod, push the sliding plate to squeeze the locking block, so that the locking block is completely inserted into the universal joint, thereby releasing the locking relationship between the universal joint and the lead screw. In this way, even when the bed frame is in the highest position, if the user continues to rotate the universal joint, it will not cause additional wear or damage to the lead screw.

[0015] (2) The double air-supported lifting bed, through the design of the auxiliary air cylinder, can reduce the air force required for the bed frame to rise during the process of the bed frame rising. When the bed stops rising, the auxiliary air cylinder can provide support force to the bed frame, thereby protecting the lead screw from the force and preventing additional wear on the lead screw. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the 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 some embodiments of the utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0017] Figure 1 Schematic diagram of the overall three-dimensional structure of the utility model Figure 1 ;

[0018] Figure 2 Schematic diagram of the overall three-dimensional structure of the utility model Figure 2 ;

[0019] Figure 3 Schematic diagram of the overall three-dimensional structure of the utility model Figure 3 ;

[0020] Figure 4This is a three-dimensional structural diagram of the utility model.

[0021] Figure 5 This is a schematic diagram of the three-dimensional cross-sectional structure of the cylindrical body of the utility model.

[0022] Figure 6 For utility model Figure 5 Schematic diagram of structure A in the middle;

[0023] Figure 7 Schematic diagram of the three-dimensional cross-sectional structure of the lead screw part of the utility model Figure 1 ;

[0024] Figure 8 This is a schematic diagram of the three-dimensional cross-sectional structure of a utility model universal joint;

[0025] Figure 9 Schematic diagram of the three-dimensional cross-sectional structure of the lead screw part of the utility model Figure 2 ;

[0026] Figure 10 This is a schematic diagram of the three-dimensional cross-sectional structure of the rotating rod of the utility model.

[0027] Explanation of icon numbers:

[0028] 1. Bed frame; 11. Rotating sleeve; 2. Base; 31. Drive assembly; 310. Cylinder; 311. Threaded sleeve; 312. Protrusion; 313. Lead screw; 314. Sliding rod; 315. Push rod; 316. Top rod; 317. Sliding plate; 318. Slot; 32. Frame; 33. L-shaped block; 34. Rod; 35. Support rod; 36. Auxiliary cylinder; 37. Universal joint; 371. Locking block; 38. Rotating rod; 381. Sliding rod; 39. Housing; 391. Handle; 392. Handle.

[0029] The realization of the utility model's purpose, functional features, and advantages will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0030] The technical solutions of the utility model embodiments will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the utility model, and not all embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the utility model.

[0031] Please see Figures 1-10 The utility model proposes a double gas spring supported lifting bed, including a bed frame 1, a base 2 below the bed frame 1, a rotating sleeve 11 rotatably connected to the lower outer wall of the bed frame 1, and a drive assembly 31 below the bed frame 1.

[0032] In an embodiment of the utility model, in order to achieve the lifting and lowering of the bed frame 1, specifically, the drive assembly 31 includes a cylinder 310, a threaded sleeve 311 fixedly connected to the end of the cylinder 310, a protrusion 312 fixedly connected to the inner wall of the cylinder 310, a lead screw 313, which passes through the rotating sleeve 11 and is rotatably connected to the rotating sleeve 11, and passes through the threaded sleeve 311 and is threadedly connected to the threaded sleeve 311. A universal joint 37 is hinged to a rotating rod 38, which passes through the housing 39 and is fixedly connected to the housing 39. The housing 39 is connected to the bed frame. 1. The outer wall is fixedly connected, and the rotating rod 38 is slidably connected to the slide rod 381. The end of the slide rod 381 is fixedly connected to the handle 391, and the handle 391 is hinged to the handle 392. The end of the cylinder 310 is hinged to the frame 32. The frame 32 is connected to the bottom of the bed frame 1 through the auxiliary cylinder 36. The two ends of the frame 32 are hinged to the L-shaped blocks 33. The ends of the L-shaped blocks 33 are penetrated by the rod 34 and rotatably connected to the rod 34. The two ends of the rod 34 are fixedly connected to the outer wall of the bed frame 1. The rod 34 is hinged to the support rod 35. The other end of the support rod 35 is hinged to the base 2.

[0033] In an embodiment of the utility model, in order to protect the drive assembly 31, specifically, the end of the lead screw 313 has a groove 318, the lead screw 313 is slidably connected to a sliding rod 314, the sliding rod 314 is penetrated by a push rod 315 and is slidably connected to the push rod 315, a top rod 316 is provided above the push rod 315, the top rod 316 is fixedly connected to the inner wall of the sliding rod 314, a sliding plate 317 is fixedly connected to the end of the push rod 315 away from the sliding rod 314, the sliding plate 317 is slidably connected to the inner wall of the lead screw 313, the sliding plate 317 is elastically connected to the inner wall of the lead screw 313 by a spring, the lead screw 313 is rotatably connected to a universal joint 37, the universal joint 37 is slidably connected to a locking block 371, the locking block 371 is elastically connected to the inner wall of the universal joint 37 by a spring;

[0034] In this utility model, when it is necessary to adjust the height of the bed frame 1, the handle 391 is pulled out, and then the handle 392 is turned. This causes the universal joint 37 to rotate via the transmission of the rotating rod 38. Figure 7As shown, the locking block 371 is locked in the locking groove 318. When the universal joint 37 rotates, the locking block 371 will apply a force to the locking groove 318, causing the lead screw 313 to rotate synchronously with the universal joint 37. When the lead screw 313 rotates, the threaded sleeve 311 threadedly connected to the lead screw 313 will drive the cylinder 310 to move. When the cylinder 310 moves, it will apply a force to the frame 32, causing the frame 32 to apply a force to the L-shaped block 33. At this time, the end of the L-shaped block 33 will apply a force to the rod 34, causing the rod 34 to rotate along the hinge point between the support rod 35 and the base 2, thereby causing the support rod 35 to lift the bed frame 1, thus achieving the purpose of adjusting the bed frame 1. At the same time, the design of the auxiliary cylinder 36 can reduce the pneumatic force required for the bed frame 1 to rise, and at the same time, it can protect the lead screw 313 from force during the support process.

[0035] When the lead screw 313 rotates and drives the bed frame 1 to rise to its highest position, the protrusion 312 fixedly connected to the inner wall of the cylinder 310 will press against the sliding rod 314, causing the sliding rod 314 to move downward. During this process, the push rod 316 will press against the push rod 315, causing the push rod 315 to move. When the push rod 315 moves, the sliding plate 317 fixedly connected to the push rod 315 will press against the locking block 371, causing the locking block 371 to move into the universal joint 37. Figure 8 As shown, the locking block 371 has an inclined surface. When the sliding plate 317 presses against the locking block 371, the locking groove 318 presses against the inclined surface of the locking block 371, causing the locking block 371 to fully enter the universal joint 37, thereby releasing the engagement between the universal joint 37 and the lead screw 313, allowing the universal joint 37 to rotate freely, thus protecting the lead screw 313. When it is necessary to lower the bed frame 1, simply rotate the universal joint 37 in the opposite direction. When the universal joint 37 rotates, the long straight edge of the locking block 371 will still exert a force on the lead screw 313, causing the lead screw 313 to rotate again, thereby causing the cylinder 310 to drive the bed frame 1 back to its original position. During this process, the force of the protrusion 312 on the sliding rod 314 disappears. At this time, the sliding plate 317 will return to its original position under the action of the spring, thereby driving the push rod 315 back to its original position, and then pushing the sliding rod 314 back to its original position.

[0036] The above description is only a preferred embodiment of the utility model and does not limit the patent scope of the utility model. All equivalent structural transformations made based on the inventive concept of the utility model and the contents of the utility model specification and drawings, or direct / indirect applications in other related technical fields, are included in the patent protection scope of the utility model.

Claims

1. A double gas spring supported lifting bed, comprising a bed frame (1), characterized in that: The bed frame (1) is provided with a base (2) below it, and a rotating sleeve (11) is rotatably connected to the outer wall of the lower end of the bed frame (1). The bed frame (1) is provided with a drive assembly (31) below it, and the drive assembly (31) includes: A cylindrical body (310) is provided with a threaded sleeve (311) fixedly connected to the end of the cylindrical body (310) and a protrusion (312) fixedly connected to the inner wall of the cylindrical body (310). A lead screw (313) passes through a rotating sleeve (11) and is rotatably connected to the rotating sleeve (11). The lead screw (313) passes through a threaded sleeve (311) and is threadedly connected to the threaded sleeve (311). A groove (318) is formed at the end of the lead screw (313). A sliding rod (314) is slidably connected to the lead screw (313). The sliding rod (314) is passed through by a push rod (315) and is slidably connected to the push rod (315). A top rod (316) is provided above the push rod (315). The top rod (316) is fixedly connected to the inner wall of the sliding rod (314). A sliding plate (317) is fixedly connected to the end of the push rod (315) away from the sliding rod (314). The sliding plate (317) is slidably connected to the inner wall of the lead screw (313) through a spring.

2. The double gas-lift support lifting bed according to claim 1, characterized in that: The lead screw (313) is rotatably connected to a universal joint (37), and the universal joint (37) is slidably connected to a locking block (371). The locking block (371) is elastically connected to the inner wall of the universal joint (37) by a spring.

3. The double gas-lift support lifting bed according to claim 2, characterized in that: The universal joint (37) is hinged to a rotating rod (38), which passes through the housing (39) and is fixedly connected to the housing (39). The housing (39) is fixedly connected to the outer wall of the bed frame (1).

4. The double gas-lift support lifting bed according to claim 3, characterized in that: The rotating rod (38) is slidably connected to a slide rod (381), and a handle (391) is fixedly connected to the end of the slide rod (381). The handle (391) is hinged to a handle (392).

5. A double gas-lift support lifting bed according to claim 1, characterized in that: The end of the cylinder (310) is hinged to a frame (32), which is connected to the bottom of the bed frame (1) via an auxiliary cylinder (36). L-shaped blocks (33) are hinged to both ends of the frame (32).

6. A double gas-lift lifting bed according to claim 5, characterized in that: The L-shaped block (33) is penetrated by the rod (34) and rotatably connected to the rod (34). Both ends of the rod (34) are fixedly connected to the outer wall of the bed frame (1). The rod (34) is hinged to a support rod (35), and the other end of the support rod (35) is hinged to the base (2).

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