Guardrail hinge
By introducing a rotary damper and a locking device into the guardrail hinge, the problems of large swaying after locking and low damping during descent are solved, thus achieving stable locking and buffered descent of the guardrail.
Patent Information
- Application Number
- CN202520548585.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-27
- Publication Date
- 2025-11-25
- Estimated Expiration
- 2035-03-27
AI Technical Summary
The existing bed rail hinges have a large swing amplitude after locking and low damping during the lowering process, resulting in inconvenience and impact problems.
By employing a rotary damper and locking device, the kinetic energy of the guardrail's descent is absorbed by the rotary damper, and the design of the locking hook and torsion spring achieves stable locking and buffered descent of the guardrail.
It improves the locking stability and impact resistance of the guardrail, reduces the swaying amplitude, and reduces the descent speed of the guardrail through a rotary damper to achieve a buffering effect.
Smart Images
Figure CN223594728U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to hinge technical field, specifically, mainly relate to a guardrail hinge. BACKGROUND
[0002] The hospital commonly used sickbed generally will set up guardrail, prevent patient to fall, and the guardrail is connected with sickbed through hinge, to be able to drop down guardrail when necessary. In order to guarantee the stability of guardrail, the guardrail hinge needs to have locking mechanism, to be able to provide resistance in horizontal direction, avoid patient to open the guardrail.
[0003] The existing sickbed guardrail generally adopts the hinge with stroke limiting function, and realizes the locking of guardrail by cooperating with the mechanical structure such as bolt, the shaking range of these hinges is large after locking, which easily brings inconvenience to medical work, and there is little damping in the process of guardrail descending after unlocking, which easily causes great impact on the guardrail. In view of this, the existing guardrail hinge needs to be improved. UTILITARY MODEL
[0004] In view of the defects of the prior art, the utility model provides a guardrail hinge to solve the problems of large shaking range after locking and small damping in the process of guardrail descending of the existing guardrail hinge.
[0005] The utility model discloses a kind of guardrail hinges, including installation seat installed on sickbed, upper support arm and lower support arm rotationally connected in the installation seat, rotating damper for absorbing the rotational kinetic energy of the upper support arm and / or lower support arm is installed on the installation seat, the upper support arm and lower support arm rotationally connect on same guardrail seat;Hook shaft seat is provided on the upper support arm, lock hook seat is provided on the lower support arm, locking device is provided between the hook shaft seat and the lock hook seat, which can fix the upper support arm and the lower support arm relative.
[0006] Preferably, lower support shaft is rotationally installed on the installation seat, the lower support arm is fixedly connected on the lower support shaft, and the rotating damper is sleeved on the lower support shaft to provide rotational damping for the lower support shaft.
[0007] Preferably, the locking device includes a lock hook shaft installed on the hook shaft seat, a rotating shaft installed on the lock hook seat, and a locking hook rotationally installed on the rotating shaft, the locking hook is connected to the lock hook shaft to fix the upper support arm and the lower support arm relative.
[0008] Preferably, a torsion spring is provided between the lock hook seat and the locking hook for twisting the locking hook, and / or the torsion spring is sleeved on the rotating shaft.
[0009] Preferably, the locking hook comprises a hook head and a pull plate, and a hook groove is formed on the hook head for clamping the locking hook shaft.
[0010] Preferably, a guide surface is arranged on the locking hook for guiding the locking hook shaft into the hook groove, and the guide surface is an arc-shaped curved surface.
[0011] Preferably, the upper support arm comprises two upper side arms and a connecting arm connected between the two upper side arms, one end of the upper side arm is rotatably connected with the mounting base, and the other end is rotatably connected with the guardrail base, and the hook shaft base is arranged on the connecting arm.
[0012] Preferably, the lower support arm comprises two lower side arms and a web plate connected between the two lower side arms, the locking hook base is arranged between the two lower side arms, one end of the lower side arm is rotatably connected with the mounting base, and the other end is rotatably connected with the guardrail base.
[0013] Preferably, an upper connecting shaft is arranged on the guardrail base, and the upper support arm is rotatably connected with the upper connecting shaft.
[0014] Preferably, a lower connecting shaft is arranged on the guardrail base, and the lower support arm is rotatably connected with the lower connecting shaft.
[0015] The utility model discloses the beneficial effect lies in:
[0016] When the guardrail is in the locking state, the locking hook and the locking hook shaft are locked and engaged stably under the action of the torsional spring, and the locking hook and the locking hook shaft can be opened only by external force, so that the locking state of the guardrail is more stable, the impact resistance is stronger, and the swing range is smaller. BRIEF DESCRIPTION OF DRAWINGS
[0017] The drawings described herein are used to provide further understanding of the present application, and form a part of the present application.
[0018] Figure 1 It is the first visual angle of the overall structure schematic view when the utility model is in the locking state.
[0019] Figure 2 It is the second visual angle of the overall structure schematic view when the utility model is in the locking state.
[0020] Figure 3 It is the first visual angle of the utility model's explosion map.
[0021] Figure 4 is the second perspective view of the exploded view of the utility model;
[0022] Figure 5 is the first perspective view of the schematic view of the guardrail seat in the lowered state of the utility model;
[0023] Figure 6 is the second perspective view of the schematic view of the guardrail seat in the lowered state of the utility model.
[0024] Explanation of reference signs:
[0025] 1, mounting seat; 11, connecting plate; 12, mounting plate; 2, upper support assembly; 21, upper support shaft; 22, upper support arm; 221, upper side arm; 222, connecting arm; 223, hook shaft seat; 3, lower support assembly; 31, lower support shaft; 311, rotary damper; 32, lower support arm; 321, lower side arm; 322, rib plate; 323, lock hook seat; 3231, accommodating groove; 4, locking device; 41, lock hook shaft; 42, rotating shaft; 43, locking hook; 431, hook head; 4311, hook groove; 4312, guide surface; 432, pull plate; 44, torsional spring; 5, guardrail seat; 51, upper connecting shaft; 52, lower connecting shaft. DETAILED DESCRIPTION
[0026] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model; obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments; based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.
[0027] In the description of the utility model, it needs to be explained that the terms "upper", "lower", "inner", "outer", "top / bottom end" and the like indicate the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.
[0028] In the description of the utility model, it is necessary to explain, unless another explicit provision and limitation, the term "installation", "set with", "suits / interface", "connection" and the like, should do broad sense understanding, for example "connection", can be fixed connection, also can be detachable connection, or integrally connected; can be mechanical connection, also can be electrical connection; can be directly connected, also can pass through intermediate medium indirectly connected, can be two elements inside the intercommunication. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to specific circumstances.
[0029] With reference to Figure 1 And Figure 2 The utility model discloses a guardrail hinge, including mounting seat 1, upper support subassembly 2, lower support subassembly 3, locking device 4 and guardrail seat 5, wherein, mounting seat 1 includes connecting plate 11 and two mounting plates 12, connecting plate 11 is used for and the fixed connection of sickbed, and mounting plate 12 is set up in the side of connecting plate 11 away from sickbed, and mounting plate 12 is integrally arranged with connecting plate 11, and two mounting plates 12 are mutually parallel and perpendicular to the surface of connecting plate 11, and the gap is set up between two mounting plates 12 for installing upper support subassembly 2 and lower support subassembly 3.
[0030] With reference to Figure 3 And Figure 4 Upper support subassembly 2 includes upper support shaft 21 and upper support arm 22, and upper support shaft 21 is installed between two mounting plates 12, and upper support arm 22 includes two upper side arms 221, connecting arm 222 integrally connected between two upper side arms 221, two upper side arms 221 are symmetrically arranged, and one end is rotatably connected on upper support shaft 21, and connecting arm 222 makes two upper side arms 221 relatively fixed, so that they can be synchronized when moving, and the middle part of connecting arm 222 is integrally provided with a hook shaft seat 223 for cooperating with locking device 4 to realize locking.
[0031] With reference to Figure 3 And Figure 4The lower support assembly 3 comprises a lower support shaft 31 and a lower support arm 32. The lower support shaft 31 is rotatably mounted between the two mounting plates 12 and is parallel to the upper support shaft 21. The lower support arm 32 comprises two lower side arms 321 and a web plate 322 integrally connected between the two lower side arms 321. The two lower side arms 321 are symmetrically arranged and each has one end fixedly connected to the lower support shaft 31. The lower side arms 321 are arranged in the gaps between the upper side arms 221, so that the upper side arms 221 and the lower side arms 321 do not interfere with each other during movement. In addition, the lower support arm 32 is located on the other side of the connecting arm 222 relative to the mounting base 1. The web plate 322 fixes the two lower side arms 321 relative to each other, so that they can be synchronized during movement. The two lower side arms 321 are integrally provided with a lock hook base 323. The lock hook base 323 is a shell structure. The part of the lock hook base 323 located at the edge of the two lower side arms 321 is a side plate for support. The part of the lock hook base 323 located between the two lower side arms 321 is a hollow containing groove 3231 for mounting the locking device 4.
[0032] With reference to Figure 3 In order to realize the buffering of the guardrail descending process, a rotary damper 311 is arranged on the upper support shaft 21 and / or the lower support shaft 31. The rotary damper 311 is sleeved on the upper support shaft 21 and / or the lower support shaft 31. The shell of the rotary damper 311 is fixed on the connecting plate 11. The rotary damper 311 can provide rotational damping for the upper support shaft 21 and / or the lower support shaft 31, absorb the kinetic energy of the guardrail and the upper support shaft 21 and the lower support shaft 31 during rotational descent, and thus reduce the speed of the guardrail descending and realize the buffering of the guardrail descending.
[0033] With reference to Figure 3 and Figure 4, the locking device 4 comprises a hook shaft 41, a rotating shaft 42, a locking hook 43 and a torsional spring 44, the hook shaft 41 is installed on the hook shaft seat 223, the rotating shaft 42 is installed on the locking hook seat 323 and is located in the accommodating groove 3231, the hook shaft 41 and the rotating shaft 42 are parallel to the upper support shaft 21, the locking hook 43 is integrally rotatably installed on the rotating shaft 42, the locking hook 43 comprises a hook head 431 and a pull plate 432 which are integrally connected, the pull plate 432 is an arc-shaped plate and is embedded in the accommodating groove 3231, the concave surface of the pull plate 432 faces the hook shaft seat 223, the hook head 431 is arranged on the concave surface of the pull plate 432, the hook head 431 is provided with a hook groove 4311 capable of being clamped on the hook shaft 41, when the hook groove 4311 is clamped on the hook shaft 41, the upper support arm 22 and the lower support arm 32 are relatively fixed, so that the locking of the guardrail position is realized; further, the outer side of the hook head 431 is an arc-shaped guide surface 4312, the torsional spring 44 is preferably sleeved on the rotating shaft 42, one end of the torsional spring 44 is connected with the locking hook 43, the other end is connected with the locking hook seat 323, the torsional spring 44 has a torsional force for torsion of the locking hook 43, so that when external force pushes the upper support arm 22 and the lower support arm 32 to rotate upwards, the hook shaft 41 can be guided by the guide surface 4312 and is automatically clamped in the hook groove 4311.
[0034] With reference to Figures 1-4 , the guardrail seat 5 is used for installing a sickbed guardrail, the guardrail seat 5 is provided with an upper connecting shaft 51 and a lower connecting shaft 52, the upper connecting shaft 51 and the lower connecting shaft 52 are arranged in parallel, the end of the upper support arm 22 away from the upper support shaft 21 is rotatably connected to the upper connecting shaft 51, and the end of the lower support arm 32 away from the lower support shaft 31 is rotatably connected to the lower connecting shaft 52, so that the guardrail seat 5 can move synchronously when the upper support arm 22 and the lower support arm 32 rotate, and further drives the guardrail to rise or fall.
[0035] The implementation principle of the utility model is:
[0036] Please refer to Figure 1 and Figure 2 , in the state shown in Figure 1 and Figure 2 , the guardrail is in the locked state and is located at the highest point, at this moment, if the guardrail needs to be lowered, the operator can pull the pull plate 432, so that the hook groove 4311 is separated from the hook shaft 41, then the locking between the upper support arm 22 and the lower support arm 32 is released, and the two can drive the guardrail seat 5 and the guardrail to rotate downwards until the lowest point, in the process, the rotary damper 311 can provide resistance to the rotation of the upper support shaft 21 and / or the lower support shaft 31, and absorb the kinetic energy when the guardrail drives the upper support assembly 2 and the lower support assembly 3 to rotate and fall; please refer to Figure 5 and Figure 6 , in Figure 5 and Figure 6In the shown state, the guardrail is in the lowered position, and if the guardrail needs to be raised, the operator can manually push the upper support arm 22 and the lower support arm 32 upward to rotate, and when the hook groove 4311 is automatically clamped on the lock hook shaft 41, the upper support arm 22 and the lower support arm 32 are automatically locked, and the guardrail can play a protective role.
[0037] The utility model has the advantages of:
[0038] When the guardrail is in the locked state, the locking hook 43 and the lock hook shaft 41 are locked and occluded stably under the action of the torsional spring 44, and the two can be opened only by torsion of external force, so that the locked state of the guardrail is more stable, the impact resistance is stronger, and the swing range is smaller; in addition, in the rotating and descending process of the upper support arm 22 and the lower support arm 32, the rotary damper 311 can reduce the speed of the guardrail descending and realize buffering of the guardrail descending, so that the utility model solves the problems of large swing range after locking of the existing guardrail hinge and small damping in the guardrail descending process.
[0039] The above is only an embodiment of the utility model and is not used to limit the utility model. The utility model can have various changes and variations for those skilled in the art. Any modification, equivalent replacement, improvement and the like within the spirit and principle of the utility model should be included in the claim range of the utility model.
Claims
1. A guardrail hinge, characterized in that The application relates to a bed-mounted installation seat (1), an upper support arm (22) and a lower support arm (32) rotatably connected to the installation seat (1), a rotary damper (311) for absorbing the rotary kinetic energy of the upper support arm (22) and / or the lower support arm (32) is mounted on the installation seat (1), and the upper support arm (22) and the lower support arm (32) are rotatably connected to the same guardrail seat (5). A hook shaft seat (223) is arranged on the upper support arm (22), a lock hook seat (323) is arranged on the lower support arm (32), and a locking device (4) for relatively fixing the upper support arm (22) and the lower support arm (32) is arranged between the hook shaft seat (223) and the lock hook seat (323).
2. A fence hinge according to claim 1, characterised in that A lower support shaft (31) is rotatably mounted on the installation seat (1), the lower support arm (32) is fixedly connected to the lower support shaft (31), and the rotary damper (311) is sleeved on the lower support shaft (31) to provide rotary damping for the lower support shaft (31).
3. The guardrail hinge of claim 1, wherein, The locking device (4) comprises a lock hook shaft (41) mounted on the hook shaft seat (223), a rotary shaft (42) mounted on the lock hook seat (323), a locking hook (43) rotatably mounted on the rotary shaft (42), and the locking hook (43) is clamped on the lock hook shaft (41) to relatively fix the upper support arm (22) and the lower support arm (32).
4. A fence hinge according to claim 3, characterised in that A torsion spring (44) for twisting the locking hook (43) is arranged between the lock hook seat (323) and the locking hook (43); and / or the torsion spring (44) is sleeved on the rotary shaft (42).
5. A fence hinge according to claim 4, characterised in that The locking hook (43) comprises a hook head (431) and a pull plate (432), and a hook groove (4311) for clamping on the lock hook shaft (41) is formed in the hook head (431).
6. A fence hinge according to claim 5, characterised in that A guide surface (4312) for guiding the lock hook shaft (41) into the hook groove (4311) is arranged on the locking hook (43), and the guide surface (4312) is an arc curved surface.
7. A guardrail hinge according to any one of claims 1-6, characterized in that The upper support arm (22) comprises two upper side arms (221) and a connecting arm (222) connected between the two upper side arms (221), one end of the upper side arm (221) is rotatably connected to the installation seat (1), the other end is rotatably connected to the guardrail seat (5), and the hook shaft seat (223) is arranged on the connecting arm (222).
8. A fence hinge according to any one of claims 1-6, characterized in that The lower support arm (32) comprises two lower side arms (321) and a muscle plate (322) connected between the two lower side arms (321), the lock hook seat (323) is arranged between the two lower side arms (321), one end of the lower side arm (321) is rotatably connected to the installation seat (1), and the other end is rotatably connected to the guardrail seat (5).
9. A guardrail hinge according to any one of claims 1-6, characterized in that An upper connecting shaft (51) is arranged on the guardrail seat (5), and the upper support arm (22) is rotatably connected to the upper connecting shaft (51).
10. A fence hinge according to any one of claims 1-6, characterized in that The guardrail seat (5) is provided with a lower connecting shaft (52), and the lower supporting arm (32) is rotationally connected to the lower connecting shaft (52).