A bed rail limit guide device

Abstract

This utility model relates to a limiting and guiding device for a hospital bed rail, comprising an upper section of a guide strip, a lower section of a guide strip, a positioning ring, a limiting piece, a return spring, and a pin. The upper section of the guide strip has a guide groove on its side wall that matches the positioning ring, and a positioning protrusion on the bottom surface of the guide groove. The lower section of the guide strip has a lower section receiving groove on its side wall that matches the positioning ring. The upper side of the positioning ring is slidably disposed within the guide groove and movably sleeved on the outside of the positioning protrusion. The bottom of the positioning ring is fixed within the lower section receiving groove. The limiting piece is rotatably mounted on the upper section of the guide strip via the pin and rotates between a first position and a second position. This limiting and guiding device enables the hospital bed rail to have both efficient and safe protection and a compact storage function when not in use. It also provides reliable fixed support and precise movement guidance and sliding function for the rail, exhibiting high reliability and strong adaptability.

Description

Technical Field

[0001] This utility model relates to the field of hospital bed technology, and in particular to a hospital bed guardrail limiting and guiding device. Background Technology

[0002] Traditional medical or nursing beds usually have guardrails installed on both sides to prevent patients from falling. In order to facilitate medical staff to care for patients or to make it easier for patients to get in and out of bed, height-adjustable and retractable guardrails are usually installed on both sides of the bed.

[0003] Chinese utility model patent CN221556424U discloses a fall-prevention nursing bed with adjustable guardrails. The bed includes a main body with a fixed rod on its side. The fixed rod has a locking mechanism for adjusting the height of the guardrail. A connecting frame is fixedly connected to one side of the fixed rod, and an insertion hole is located on one side of the fixed rod. A slidable insert is inserted into the insertion hole. The fall-prevention nursing bed features a guardrail composed of railings, a base plate, and handrails, inserted into the fixed rods on both sides of the main body. A block on one side of the fixed rod connects to slots on both sides of the main body to secure the guardrail. A storage plate is located at the bottom of the main body for storing the guardrail. An adjusting rod between the base plate and the handrails is inserted into an adjusting groove, and an adjusting hole is drilled through the adjusting rod and inserted into the insertion hole to adjust the guardrail height.

[0004] The aforementioned nursing beds still have some defects: the bed rails and adjustment rods are directly slidably inserted into the adjustment grooves and through holes of the fixed rods, respectively. When the rails are raised or lowered, they are prone to tilting during the sliding process, resulting in jamming and difficulty in smooth movement.

[0005] Therefore, this utility model proposes a bed railing limiting and guiding device to solve the above problems. Utility Model Content

[0006] The technical problem to be solved by this utility model is to provide a bed rail limit and guide device, which provides stable support and fixation for the bed rail while limiting and guiding the movement of the rail to avoid jamming.

[0007] To solve the above-mentioned technical problems, the technical solution of this utility model is: a bed railing limiting guide device for connecting the railing and the bed body. Its innovation is that the limiting guide device includes an upper section of the guide strip, a lower section of the guide strip, a positioning ring, a limiting piece, a return spring and a pin. The bed has a vertically opened sliding groove, and the upper section and the lower section of the guide rail are slidably disposed in the sliding groove, with the upper section of the guide rail located above the lower section of the guide rail. The upper section of the guide strip has a guide groove that matches the positioning ring on its side wall. The bottom surface of the guide groove has a positioning protrusion. The lower section of the guide strip has a lower section receiving groove that matches the positioning ring on its side wall. The upper side of the positioning ring is slidably disposed in the guide groove and is movably sleeved on the outside of the positioning protrusion. The bottom of the positioning ring is fixed in the lower section receiving groove. The limiting piece is rotatably mounted on the upper section of the guide rail by a pin and rotates between a first position and a second position. A return spring is provided between the limiting piece and the upper section of the guide rail. The two ends of the limiting piece are a pressing end and a limiting end, respectively. The pressing end extends from the opening of the slide groove to the outside of the bed. The bottom surface of the slide groove of the bed has a height limiting groove for the limiting end to rotate into or move out. When the limiting piece rotates to the first position, the limiting end enters the height limiting groove, and the upper section of the guide rail is locked to the bed. When the limiting piece rotates to the second position, the limiting end moves out of the height limiting groove and enters the slide groove, and the upper section of the guide rail is unlocked from the bed.

[0008] Furthermore, the positioning protrusion has a first assembly groove, the limiting piece is installed in the first assembly groove, and the bottom surface of the first assembly groove has a first clearance groove for the limiting end to extend into the height limiting groove.

[0009] Furthermore, two second clearance grooves are arranged side by side on the side of the pin on the limiting piece near the pressing end, and a spring sleeve is formed between the two second clearance grooves. One end of the reset spring is connected to the bottom surface of the first mounting groove, and the other end is sleeved on the spring sleeve.

[0010] Furthermore, the outer end face of the positioning protrusion has a guide protrusion that extends from the opening of the slide groove to the outside of the bed.

[0011] Furthermore, the guardrail includes two guardrail body sections, which are respectively connected to the upper section and the lower section of the guide rail. Each of the two guardrail body sections is connected to the corresponding upper section or lower section of the guide rail via a plug rod.

[0012] Furthermore, one side of the insertion rod is connected to the corresponding guardrail body, and the other end is connected to the upper or lower section of the corresponding guide strip via a limiting rod. The limiting rod is connected to the end of the insertion rod, and its central axis is set perpendicular to the insertion rod. The upper and lower sections of the guide strip have through holes for the insertion rod to pass through, and the side walls of the upper and lower sections of the guide strip have second assembly grooves for the limiting rod to enter. The insertion rod is movably inserted into the through hole, and the limiting rod is movably disposed in the second assembly groove.

[0013] The advantages of this utility model are: The limiting and guiding device of this utility model, through the cooperation of the upper section of the guide strip, the lower section of the guide strip and the positioning ring, has the movement state of first expanding and then rising during the lifting process of the guardrail, and first falling and then compressing during the lowering process. Thus, the bed guardrail has both efficient and safe protection and compact storage function when not in use. It also provides reliable fixed support and precise movement guidance and sliding function for the guardrail. With the help of the limiting plate, the return spring and the height limiting groove, the guardrail can be automatically locked in the protective state. It has high reliability and strong adaptability.

[0014] This invention improves the assembly accuracy and stability of the limiting piece by setting a first assembly groove on the positioning protrusion and installing the limiting piece in the first assembly groove, and also makes the structure more compact.

[0015] The reset spring of this utility model, through the cooperation between the spring sleeve part on the limiting plate and the second clearance groove, can stably be sleeved on a specific position of the limiting plate, preventing the reset spring from shifting or falling off during assembly or use. Moreover, it has a simple structure, low limiting cost, and high space utilization.

[0016] This invention designs a guide protrusion on the outer end face of the positioning protrusion, and the guide protrusion extends from the opening of the slide groove to the outside of the bed. On the one hand, it can strengthen the structural strength and stability of the upper section of the guide strip, and on the other hand, it can strengthen the guidance during the movement of the guide device, thereby further improving the stability and reliability of the movement.

[0017] The guardrail of this utility model adopts a split structure, which is divided into two sections. The upper and lower sections of the guide rail are indirectly connected by insert rods, which is conducive to the standardized and unified production of the limiting guide rail device. Different guardrails can be assembled according to different protection requirements of the hospital beds.

[0018] In this invention, a limiting rod is set on the insert rod, which cooperates with the through holes and the second assembly groove on the upper and lower sections of the guide rail. During the installation of the guide rail device, the insert rod is simply passed through the through hole, allowing the limiting rod to enter the second assembly groove. Then, the upper and lower sections of the guide rail are installed into the groove to complete the insertion rod limiting installation. This achieves a stable connection between the guardrail and the bed frame, effectively preventing the guardrail from accidentally falling off during use, and is easy to operate. Attached Figure Description

[0019] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0020] Figure 1 This is an exploded view of the bed railing limiting and guiding device of this utility model.

[0021] Figure 2 This is an assembly diagram of the upper section of the guide strip, the lower section of the guide strip, the positioning ring, and the limiting piece of this utility model.

[0022] Figure 3 This is a schematic diagram of the upper section of the guide strip of this utility model in the first direction.

[0023] Figure 4 This is a schematic diagram of the upper section of the guide strip of this utility model in the second direction.

[0024] Figure 5 This is a schematic diagram of the lower section of the guide strip of this utility model.

[0025] Figure 6 This is a schematic diagram of the structure of the limiting piece of this utility model.

[0026] Figure 7 This is a schematic diagram showing the protective state of the guardrail of this utility model after it is raised using a limiting and guiding sliding device to protect the hospital bed.

[0027] Figure 8 This is an enlarged view of the structure at point A of this utility model.

[0028] Figure 9 This is a schematic diagram showing the state of the guardrail of this utility model after it has been lowered using a limiting and guiding device, thus removing the protection from the hospital bed.

[0029] Figure 10 This is an enlarged view of the structure at point B of this utility model. Detailed Implementation

[0030] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0031] Example This embodiment provides a bed railing limiting and guiding device, such as... Figure 1-10 As shown, the guardrail is used to connect the bed frame 8. The bed frame 8 includes a bed body for sleeping and a headboard and a footboard that are vertically arranged on both sides of the bed body. Both the headboard and the footboard are equipped with limit guide devices. The guardrail is located between the headboard and the footboard, and both sides of the guardrail are connected to the limit guide devices on the headboard and the footboard, respectively.

[0032] The limiting guide device includes an upper section 1 of the guide strip, a lower section 2 of the guide strip, a positioning ring 6, and a limiting piece 5. The headboard and footboard of the bed frame 8 each have vertically formed grooves 81 for installing the limiting guide device. The grooves 81 are T-shaped, with their openings facing horizontally towards the side closest to the guardrail. Both the upper section 1 and the lower section 2 of the guide strip are slidably disposed within the grooves 81, with the upper section 1 positioned above the lower section 2.

[0033] The upper section 1 of the guide strip has a guide groove 11 on its side wall that matches the positioning ring 6. A positioning protrusion 13 is located on the bottom surface of the guide groove 11. The lower section 2 of the guide strip has a lower receiving groove 21 on its side wall that matches the bottom of the positioning ring 6. The positioning ring 6 has an overall elongated ring structure. The upper side of the positioning ring 6 is slidably disposed within the guide groove 11 and movably fitted around the outside of the positioning protrusion 13. Several first limiting protrusions 12 extend outward from the side walls on both sides of the positioning protrusion 13, limiting the positioning ring 6 within the guide groove 11. The bottom of the positioning ring 6 is fixed within the lower receiving groove 21, which has a U-shaped structure that matches the bottom of the positioning ring 6. Several second limiting protrusions 22 extend outward from the side walls of the lower receiving groove 21, limiting the positioning ring 6 within the lower receiving groove 21.

[0034] The limiting piece 5 is rotatably mounted on the upper section 1 of the guide rail via a pin 4, and rotates between a first position and a second position. A return spring 3 is provided between the limiting piece 5 and the upper section 1 of the guide rail. The two ends of the limiting piece 5 are a pressing end and a limiting end, respectively. The pressing end extends from the opening of the slide groove 81 to the outside of the bed body 8. The bottom surface of the slide groove 81 of the bed body 8 has a height limiting groove 802 for the limiting end to rotate into or move out. There can be one or more height limiting grooves 802, and multiple height limiting grooves 802 can meet the needs of different height adjustments of the guardrail. When the limiting piece 5 rotates to the first position, the limiting end enters the height limiting groove 802 of the corresponding position, and the upper section 1 of the guide rail is locked to the bed body 8; when the limiting piece 5 rotates to the second position, the limiting end moves out of the height limiting groove 802 and enters the slide groove 81, and the upper section 1 of the guide rail is unlocked from the bed body 8.

[0035] In this embodiment, to improve the assembly accuracy and stability of the limiting piece 5 and make the device structure more compact, a first assembly groove 17 is formed on the positioning protrusion 13. A pin hole 18 for installing the pin 4 is formed on the side wall of the first assembly groove 17. The limiting piece 5 is fitted on the outside of the pin 4 and is disposed in the first assembly groove 17. The pin 4 passes through the pin hole 18. A first clearance groove 19 is formed on the bottom surface of the first assembly groove 17 for the limiting end to extend into the height limiting groove 802.

[0036] On the side of the pin 4 near the pressing end of the limiting piece 5, there are two parallel second clearance grooves 51, and a spring sleeve part 52 is formed between the two second clearance grooves 51. One end of the return spring 3 is connected to the bottom surface of the first assembly groove 17, and the other end is sleeved on the spring sleeve part 52, so that the return spring 3 is stably sleeved in a specific position of the limiting piece 5, preventing the return spring 3 from shifting or falling off during assembly or use. Moreover, the structure is simple, the limiting cost is low, and the space utilization rate is high.

[0037] In this embodiment, the outer end face of the positioning protrusion 13 has two triangular guide protrusions 14. The guide protrusions 14 extend from the opening of the slide groove 81 to the outside of the bed body 8. On the one hand, they strengthen the structural strength and stability of the upper section 1 of the guide strip. On the other hand, they strengthen the guidance during the movement of the guide device, further improving the stability and reliability of the movement.

[0038] In this embodiment, the guardrail includes two guardrail body sections, which are respectively connected to the upper section 1 and the lower section 2 of the guide rail. Each guardrail body section is connected to the corresponding upper section 1 or lower section 2 of the guide rail via two insert rods 7. For different hospital beds, standardized and uniformly produced limiting guide rail devices can be used, and different guardrails can be assembled according to the different protection requirements of the hospital beds.

[0039] In this embodiment, one side of the insertion rod 7 is connected to the corresponding guardrail body, and the other end is connected to the upper section 1 or lower section 2 of the corresponding guide rail through a limiting rod. The limiting rod is connected to the end of the insertion rod 7, and its central axis is set perpendicular to the insertion rod 7. The upper section 1 and lower section 2 of the guide rail have through holes 15 for the insertion rod 7 to pass through. The side wall of the upper section 1 and lower section 2 of the guide rail away from the guardrail has a second assembly groove 16 for the limiting rod to enter. The limiting rod is movably disposed in the second assembly groove 16. The insertion rod 7 is movably disposed in the through hole 15. The side of the insertion rod 7 away from the limiting rod extends out of the opening of the slide groove 81 and connects to the corresponding guardrail body. During the installation of the guide rail device, simply pass the insert rod 7 through the through hole 15 to allow the limiting rod to enter the second assembly groove 16, and then install the upper section 1 and lower section 2 of the guide rail into the slide groove 81 to complete the limiting installation of the insert rod 7, thereby achieving a stable connection between the guardrail and the bed body 8, effectively preventing the guardrail from accidentally falling off during use, and the operation is simple.

[0040] When the guardrail needs to be raised using the limiting guide sliding device to protect the hospital bed, manually lift the guardrail body connected to the upper section 1 of the guide strip. The upper section 1 of the guide strip moves upward within the slide groove 81 and moves relative to the lower section 2 of the guide strip along the positioning ring 6, creating distance between them. When the positioning protrusion 13 moves upward with the upper section 1 of the guide strip to the top of the positioning ring, the distance between the two guardrail bodies is at its maximum. As the upper section 1 of the guide strip continues to move upward, driven by the positioning protrusion 13 and the positioning ring 6... As the lower section 2 of the guide rail moves upward, the guardrail body connected to the lower section 2 of the guide rail also moves upward. During the upward movement of the upper section 1 of the guide rail, the limiting end of the limiting piece 5 always slides upward along the wall of the slide groove 81, and the return spring 3 is in a compressed state. When the limiting piece 5 moves upward with the upper section 1 of the guide rail to the height limiting groove 802, the limiting piece 5 automatically rotates under the elastic force of the return spring 3, so that the limiting end of the limiting piece 5 enters the height limiting groove 802, thereby locking the upper section 1 of the guide rail to the bed body 8. Figure 7-8 As shown, the operation is complete.

[0041] When the guardrail is lowered using the limiting and guiding device to remove protection from the hospital bed, manually press the pressing end of the limiting piece 5 to make it rotate against the spring force of the return spring 3, causing the limiting end to leave the height limiting groove 802 and enter the slide groove 81. Then lower the guardrail. During this process, the upper section 1 and the lower section 2 of the guide strip move down synchronously along the slide groove 81. The limiting end of the limiting piece 5 always slides down along the wall of the slide groove 81. When the lower section 2 of the guide strip moves to the bottom of the slide groove 81, continue to lower the guardrail body connected to the upper section 1 of the guide strip. At this time, the lower section 2 of the guide strip has stopped moving, while the upper section 1 of the guide strip continues to move down along the positioning ring 6, shortening the distance to the lower section 2 of the guide strip. When the bottom end of the upper section 1 of the guide strip abuts against the top end of the lower section 2 of the guide strip, stop moving down. Figure 9-10 As shown, the distance between the two ends of the guardrail is the shortest at this time, and the height of the guardrail is the lowest, thus avoiding the guardrail from protruding from the bed surface and making it more comfortable for the patient to get out of bed.

[0042] The limiting and guiding device, through the cooperation of the upper section of the guide strip, the lower section of the guide strip, and the positioning ring, has the ability to move in a state of first expanding and then rising during the lifting process of the guardrail, and first lowering and then compressing during the lowering process. This allows the bed guardrail to have both efficient and safe protection and compact storage function when not in use. It also provides reliable fixed support and precise movement guidance and sliding function for the guardrail. With the help of the limiting plate, return spring and height limiting groove, the guardrail can be automatically locked in the protective state. It has high reliability and strong adaptability.

[0043] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A bed rail limiting and guiding device for connecting the railing and the bed frame, characterized in that: The limiting guide device includes an upper section of the guide strip, a lower section of the guide strip, a positioning ring, a limiting piece, a return spring, and a pin; The bed has a vertically opened sliding groove, and the upper section and the lower section of the guide rail are slidably disposed in the sliding groove, with the upper section of the guide rail located above the lower section of the guide rail. The upper section of the guide strip has a guide groove that matches the positioning ring on its side wall. The bottom surface of the guide groove has a positioning protrusion. The lower section of the guide strip has a lower section receiving groove that matches the positioning ring on its side wall. The upper side of the positioning ring is slidably disposed in the guide groove and is movably sleeved on the outside of the positioning protrusion. The bottom of the positioning ring is fixed in the lower section receiving groove. The limiting piece is rotatably mounted on the upper section of the guide rail by a pin and rotates between a first position and a second position. A return spring is provided between the limiting piece and the upper section of the guide rail. The two ends of the limiting piece are a pressing end and a limiting end, respectively. The pressing end extends from the opening of the slide groove to the outside of the bed. The bottom surface of the slide groove of the bed has a height limiting groove for the limiting end to rotate into or move out. When the limiting piece rotates to the first position, the limiting end enters the height limiting groove, and the upper section of the guide rail is locked to the bed. When the limiting piece rotates to the second position, the limiting end moves out of the height limiting groove and enters the slide groove, and the upper section of the guide rail is unlocked from the bed.

2. The bed railing limiting and guiding device according to claim 1, characterized in that: The positioning protrusion has a first assembly groove, the limiting piece is installed in the first assembly groove, and the bottom surface of the first assembly groove has a first clearance groove for the limiting end to extend into the height limiting groove.

3. The bed railing limiting and guiding device according to claim 2, characterized in that: The pin on the limiting piece has two second clearance grooves arranged side by side on the side near the pressing end, and a spring sleeve is formed between the two second clearance grooves. One end of the reset spring is connected to the bottom surface of the first mounting groove, and the other end is sleeved on the spring sleeve.

4. The bed railing limiting and guiding device according to claim 1, characterized in that: The outer end face of the positioning protrusion has a guide protrusion that extends from the opening of the slide groove to the outside of the bed.

5. The bed railing limiting and guiding device according to claim 1, characterized in that: The guardrail includes two guardrail body sections, which are respectively connected to the upper section and the lower section of the guide rail. Each of the two guardrail body sections is connected to the corresponding upper section or lower section of the guide rail via a plug rod.

6. The bed rail limiting and guiding device according to claim 5, characterized in that: One side of the insertion rod is connected to the corresponding guardrail body, and the other end is connected to the upper or lower section of the corresponding guide strip via a limiting rod. The limiting rod is connected to the end of the insertion rod, and its central axis is set perpendicular to the insertion rod. The upper and lower sections of the guide strip have through holes for the insertion rod to pass through, and the side walls of the upper and lower sections of the guide strip have second assembly slots for the limiting rod to enter. The insertion rod is movably inserted into the through hole, and the limiting rod is movably set in the second assembly slot.

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