A slow-release rebound handrail
Through the design of buffer components and adjustment components, the slow-release rebound armrest solves the problems of metal impact noise and limited application range of traditional armrests, achieves silent and adaptive adjustment, and improves the user experience and applicability.
Patent Information
- Application Number
- CN202310351131.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2023-04-04
- Publication Date
- 2025-09-09
- Estimated Expiration
- 2043-04-04
AI Technical Summary
Traditional safety handrails are prone to making metal collision noises when rotating, and their applicability is limited by the size differences of toilet models.
A slow-release rebound armrest is designed, which adopts a buffer component and an adjustment component. The buffer component is coordinated through a sliding rod, an abutment plate, an abutment head and a spring. The adjustment component adjusts the armrest spacing through gears and locking components to avoid metal collisions and abnormal noises, and adapt to toilets of different sizes.
It effectively reduces the metal impact noise when the armrest rotates, improves its service life, and expands its scope of application by adjusting the components to adapt to different toilet sizes.
Smart Images
Figure CN117017105B_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the field of handrails, in particular to a slow-release rebound handrail. Background Art
[0002] There are many toilets with safety handrails on the market, which are mainly used to assist the elderly to sit or stand up when using the toilet, greatly reducing the burden on the waist and legs and avoiding accidents such as falls and injuries.
[0003] However, traditional safety handrails still have shortcomings: 1. When the handrail is subjected to downward pressure from the hand, metal collision will occur at the rotating part of the handrail, which not only reduces the service life of the safety handrail, but also produces abnormal noise; 2. The safety handrail is detachably installed on the toilet. There are many types of toilets, and the size of each type of toilet is different. The distance between the two handrails cannot be adjusted, which means that the safety handrail needs to be designed according to the size of the corresponding toilet model, that is, the scope of application of the safety handrail is limited. Summary of the Invention
[0004] The technical problem to be solved by the present invention is to solve the problem that the traditional safety handrail is prone to metal collision when rotating and the scope of application is limited.
[0005] The present invention provides a slow-release rebound armrest, comprising a base plate, two armrests, two fixing assemblies for fixing the armrests and an adjusting assembly for adjusting the distance between the two fixing assemblies, the tail end of the armrest is provided with a hinge part, the front end of the bottom of the hinge part is provided with a buffer assembly, the fixing assembly comprises an L-shaped mounting plate, a lower shell and an upper shell, one end of the L-shaped mounting plate is provided with a hinge seat, the side wall of the lower shell is provided with a slot for inserting one end of the L-shaped mounting plate, the top of the upper shell is provided with an avoidance notch for avoiding the armrest, one end of the L-shaped mounting plate is fixed in the lower shell by a screw, the lower shell and the upper shell are fixedly connected by screws, the adjusting assembly is fixed to the base plate, the other ends of the L-shaped mounting plates of the two fixing assemblies are respectively fixedly connected to the two ends of the adjusting assembly, and the two armrests are respectively hinged to the hinge seats on the two fixing assemblies through the hinge part.
[0006] The top of the sliding plate is located in the third receiving groove, and the top of the sliding plate is located in the third receiving groove. The spring is located in the first receiving groove, and the two ends of the spring respectively contact with the bottom of the connecting head and the bottom of the first receiving groove.
[0007] In some embodiments, a first buffer rubber ring is provided on the top of the abutting plate.
[0008] In some embodiments, a second buffer rubber ring is fixed to the top of the first accommodating groove.
[0009] In some embodiments, a rubber buffer layer is provided on the bottom of the abutment head.
[0010] In some embodiments, the adjustment assembly includes an adjustment frame, an upper rack, a lower rack, a gear and a locking component for locking the gear. The adjustment frame is provided with two second slide grooves symmetrically arranged in the upper and lower directions, and both ends of the gear are provided with a rotating shaft. The adjustment frame is set on the base plate, and the upper rack and the lower rack are respectively slidably set in the two second slide grooves. The gear is rotatably set on the adjustment frame through two rotating shafts. The upper rack and the lower rack are both engaged with the gear. The upper rack and the lower rack are respectively fixedly connected to the other end of the two L-shaped mounting plates, and the locking component is located next to one of the rotating shafts.
[0011] In some embodiments, the cross-sections of the upper rack and the lower rack are both in the shape of an I-character.
[0012] In some embodiments, the locking component includes a locking cap, a moving rod, a shift block and a bracket, wherein a locking block with a polygonal cross-section is provided on the side wall of one of the rotating shafts, the head end of the locking cap is provided with a locking groove that cooperates with the locking block, the bracket is provided with a third sliding groove that slides with the moving rod, the side wall of the bracket is provided with a moving groove for the shift block to move, the moving groove is connected to the third sliding groove, the bracket is arranged on the bottom plate, the moving rod is arranged in the third sliding groove, and the locking cap is fixedly connected to the head end of the moving rod.
[0013] In some embodiments, the cross section of the moving rod is polygonal.
[0014] In some embodiments, anti-slip grooves are provided on the outer wall of the shift block.
[0015] The beneficial effects of the present invention are:
[0016] First, the slow-release rebound armrest of the present invention adopts a buffer component to offset the downward pressure of the elderly's hands on the armrest, that is, it reduces the force of the hinge part hitting the L-shaped mounting plate, avoids the hinge part hitting the L-shaped mounting plate and causing abnormal noise, and reduces the probability of damage to the armrest. The distance between the two armrests can be adjusted by adjusting the component, so that the entire slow-release rebound armrest can be suitable for toilets of different sizes.
[0017] Secondly, a slow-release rebound armrest of the present invention can offset part of the downward pressure applied by the elderly's hand on the armrest after the abutment head is retracted into the first slide groove through the cooperation between the sliding rod, the abutment plate, the abutment head, the connecting head and the spring.
[0018] Thirdly, the slow-release rebound armrest of the present invention is provided with a first buffer rubber ring. After the elderly remove the strength of their hands, the spring can drive the abutment head to move downward by its own elastic force, and the abutment plate gradually moves into the third receiving groove of the cover. The first buffer rubber ring offsets the impact force of the abutment plate to avoid accidental abnormal noise.
[0019] Fourthly, the slow-release rebound handrail of the present invention is provided with a second buffer rubber ring. When the elderly press the handrail, the abutment head and the cover gradually approach the top of the first slide groove. The second buffer rubber cavity can offset the impact force when the abutment head and the cover move, thereby avoiding unexpected abnormal noise.
[0020] Fifth, a slow-release rebound armrest of the present invention is provided with a locking component, which moves the movable rod by the shift block so that the locking groove of the locking cap is engaged with the locking block. Then the gear is locked, and the upper rack and the lower rack will not be offset, that is, the positions of the two armrests are locked. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] In order to more clearly illustrate the technical solution of the present invention, the following is a brief introduction to the drawings required for the present invention. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.
[0022] Figure 1 This is a schematic structural diagram of the slow-release rebound handrail of the present invention;
[0023] Figure 2 It is a partial schematic diagram of the slow-release rebound handrail of the present invention;
[0024] Figure 3 This is a partial cross-sectional view of the slow-release rebound handrail of the present invention. Figure 1 ;
[0025] Figure 4 This is a partial cross-sectional view of the slow-release rebound handrail of the present invention. Figure 2 ;
[0026] Figure 5 This is a partial cross-sectional view of the slow-release rebound handrail of the present invention. Figure 3 ;
[0027] Figure 6 It is a structural diagram of the adjustment component;
[0028] Figure 7 A partial cross-sectional view of the adjustment component.
[0029] Reference numerals: 1, bottom plate; 2, armrest; 21, hinged portion; 211, first slide groove; 212, third receiving groove; 213, limit rod; 3, fixing assembly; 31, L-shaped mounting plate; 311, hinge seat; 32, lower shell; 321, slot; 33, upper shell; 331, avoidance notch; 4, adjustment assembly; 41, adjustment frame; 411, second slide groove; 42, upper rack; 43, lower rack; 44, gear; 441, rotating shaft; 442, locking block; 45. Locking component; 451. Locking cap; 452. Moving rod; 453. Dial block; 454. Bracket; 455. Third slide groove; 456. Moving groove; 5. Buffer assembly; 51. Slide rod; 52. Abutment plate; 521. First buffer rubber ring; 53. Abutment head; 531. First receiving groove; 532. Cover; 533. Slide hole; 534. Second receiving groove; 535. Inner groove; 54. Connector; 55. Spring; 56. Second buffer rubber ring. DETAILED DESCRIPTION
[0030] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.
[0031] In this embodiment, if Figures 1 to 7As shown, a slow-release rebound handrail includes a base plate 1, two handrails 2, two fixing components 3 for fixing the handrails 2, and an adjusting component 4 for adjusting the distance between the two fixing components 3. The tail end of the handrail 2 is provided with a hinge portion 21, and the front end of the bottom of the hinge portion 21 is provided with a buffer component 5. The fixing component 3 includes an L-shaped mounting plate 31, a lower shell 32 and an upper shell 33. One end of the L-shaped mounting plate 31 is provided with a hinge seat 311, and the side wall of the lower shell 32 is provided with a hinge seat 311 for the end of the L-shaped mounting plate 31. Inserted into the slot 321, the top of the upper shell 33 is provided with an avoidance notch 331 for avoiding the armrest 2, one end of the L-shaped mounting plate 31 is fixed in the lower shell 32 by a screw, the lower shell 32 and the upper shell 33 are fixedly connected by screws, the adjustment component 4 is fixed on the base plate 1, and the other ends of the L-shaped mounting plates 31 of the two fixing components 3 are respectively fixedly connected to the two ends of the adjustment component 4, and the two armrests 2 are respectively hinged to the hinge seats 311 on the two fixing components 3 through the hinge parts 21.
[0032] When the elderly need to use the two armrests 2, they directly rotate the two armrests 2. The hinged portions 21 of the two armrests 2 rotate around the hinged portions of the hinged seats 311 respectively, and the armrests 2 change from a vertical state to a horizontal state. When the elderly press the armrests 2 to prepare to stand up, the buffer assembly 5 can provide an upward buffering force. The buffer assembly 5 includes a slide bar 51, an abutment plate 52, an abutment head 53, a connector 54 and a spring 55. The top of the abutment head 53 is provided with a first receiving groove 531 and a cover 532 for closing the first receiving groove 531. The top of the cover 532 is provided with a sliding hole 533 that slides with the slide bar 51. The bottom of the cover 532 is provided with a second receiving groove 534 for accommodating the abutment plate 52. The outer wall of the abutment head 53 is provided with an inner groove 534. 35, the bottom of the hinge part 21 is provided with a first sliding groove 211 that slides with the abutting head 53, the top of the first sliding groove 211 is provided with a third receiving groove 212, and the groove wall of the first sliding groove 211 is provided with a limiting rod 213 that can move up and down in the inner groove 535, the slide bar 51 is vertically arranged in the first sliding groove 211, the top of the slide bar 51 is located in the third receiving groove 212, the abutting plate 52 is fixedly connected to the slide bar 51, the abutting head 53 is arranged in the first sliding groove 211, the connecting head 54 is arranged at the bottom of the slide bar 51, the connecting head 54 is located in the first receiving groove 531, the spring 55 is arranged in the first receiving groove 531, and the two ends of the spring 55 respectively contact the bottom of the connecting head 54 and the bottom of the first receiving groove 531, as shown in FIG. Figures 3 to 5As shown, the head end of the abutment 53 initially protrudes from the first slide groove 211, and the limit rod 213 abuts against the top of the inner groove 535. The limit rod 213 limits the length of the head end of the abutment 53 protruding from the first slide groove 211. After the elderly person presses his hand onto the armrest 2, the abutment 53 moves into the first slide groove 211, and the abutment 53 drives the cover 532 to move synchronously. The slide rod 51 and the connecting head 54 do not move, so the spring 55 can be squeezed between the inner connecting head 54 and the bottom of the second accommodating groove 534, and the spring 55 gradually becomes a compressed state. When compressed, the spring 55 can offset the downward pressure brought by the elderly person's hand, that is, it plays a buffering role, preventing the bottom of the hinged part 21 from directly hitting the L-shaped mounting plate 31. A rubber buffer layer is provided at the bottom of the abutment 53 to avoid accidental noise caused by the abutment 53 hitting the L-shaped mounting plate 31, and also provides a buffering force.
[0033] Furthermore, a first buffer rubber ring 521 is provided on the top of the abutment plate 52. After the elderly person removes the strength of his hands, the spring 55 can drive the abutment head 53 to move downward by its own elastic force, and the abutment plate 52 gradually moves into the third receiving groove 212 of the cover 532. The first buffer rubber ring 521 offsets the impact force of the abutment plate 52 to avoid accidental abnormal noise.
[0034] Furthermore, a second buffer rubber ring 56 is fixed to the top of the first accommodating groove 531. When the elderly press the armrest 2, the abutment head 53 and the cover 532 gradually approach the top of the first slide groove 211. The second buffer rubber cavity can offset the impact force when the abutment head 53 and the cover 532 move, thereby avoiding unexpected abnormal noise.
[0035] When installing the slow-release rebound armrest, directly fix the base plate 1 to the toilet, and then use the adjustment component 4 to adjust the distance between the two armrests 2 according to the actual size of the toilet. The adjustment component 4 includes an adjustment frame 41, an upper rack 42, a lower rack 43, a gear 44 and a locking component 45 for locking the gear 44. Two second slide grooves 411 are symmetrically arranged in the upper and lower parts of the adjustment frame 41, and a rotating shaft 441 is provided at both ends of the gear 44. The adjustment frame 41 is set on the base plate 1, and the upper rack 42 and the lower rack 43 are respectively slidably set in the two second slide grooves 411. The gear 44 is rotatably set on the adjustment frame 41 through the two rotating shafts 441. 3 are meshed with the gear 44, the upper rack 42 and the lower rack 43 are respectively fixedly connected to the other end of the two L-shaped mounting plates 31, and the locking component 45 is located next to one of the rotating shafts 441. When one of the handrails 2 is pulled to move, the handrail 2 drives the upper rack 42 to move synchronously through the L-shaped mounting plate 31. The gear 44 is driven by the upper rack 42 to rotate, and the gear 44 drives the lower rack 43 to move. The moving direction of the lower rack 43 is opposite to that of the upper rack 42, and the distance between the two handrails 2 will change. In order to improve the stability of the upper rack 42 and the lower rack 43 when moving, the cross-sections of the upper rack 42 and the lower rack 43 are both in the shape of an "I".
[0036] After the adjustment is completed, the positions of the two armrests 2 are locked by the locking component 45 to prevent them from deflecting. The locking component 45 includes a locking cap 451, a moving rod 452, a dial block 453 and a bracket 454. A locking block 442 with a polygonal cross-section is provided on the side wall of one of the rotating shafts 441. The head end of the locking cap 451 is provided with a locking groove that cooperates with the locking block 442. A third sliding groove 455 that slides with the moving rod 452 is provided on the bracket 454. A moving groove 456 for the dial block 453 to move is provided on the side wall of the bracket 454. The moving groove 456 is connected to the third sliding groove 455. The bracket 454 is set on the bottom plate 1, the moving rod 452 is set in the third sliding groove 455, and the locking cap 451 is fixedly connected to the head end of the moving rod 452, and the moving rod 452 is moved by the shift block 453, and the cross-section of the moving rod 452 is set to a polygon, which can prevent the moving rod 452 from deflecting. Anti-slip grooves are provided on the outer wall of the shift block 453, which can increase the friction between the hand and the shift block 453 to avoid slipping. After the moving rod 452 moves, it can drive the locking cap 451 to move toward the locking block 442, and then the locking cap 451 is engaged with the locking block 442 through the locking groove, and the gear 44 is locked by the locking cap 451 and the locking block 442. After the gear 44 is locked, the upper rack 42 and the lower rack 43 will not deviate, that is, the positions of the two armrests 2 are locked.
[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.
Claims
1. A slow-release rebound handrail, characterized in that: The invention comprises a bottom plate (1), two armrests (2), two fixing assemblies (3) for fixing the armrests (2), and an adjusting assembly (4) for adjusting the distance between the two fixing assemblies (3); the tail end of the armrest (2) is provided with a hinge portion (21); the front end of the bottom of the hinge portion (21) is provided with a buffer assembly (5); the fixing assembly (3) comprises an L-shaped mounting plate (31), a lower shell (32) and an upper shell (33); one end of the L-shaped mounting plate (31) is provided with a hinge seat (311); the side wall of the lower shell (32) is provided with an insertion hole for inserting one end of the L-shaped mounting plate (31); The upper shell (33) is provided with an escape notch (331) for escaping the handrail (2), one end of the L-shaped mounting plate (31) is fixed in the lower shell (32) by screws, the lower shell (32) and the upper shell (33) are fixedly connected by screws, the adjustment component (4) is fixed on the bottom plate (1), the other ends of the L-shaped mounting plates (31) of the two fixing components (3) are respectively fixedly connected to the two ends of the adjustment component (4), and the two handrails (2) are respectively hinged to the hinge seats (311) on the two fixing components (3) through the hinge parts (21); The buffer assembly (5) comprises a slide rod (51), an abutting plate (52), an abutting head (53), a connecting head (54) and a spring (55); a first receiving groove (531) and a cover (532) for closing the first receiving groove (531) are provided on the top of the abutting head (53); a sliding hole (533) for slidingly cooperating with the slide rod (51) is provided on the top of the cover (532); a second receiving groove (534) for accommodating the abutting plate (52) is provided on the bottom of the cover (532); an inner groove (535) is provided on the outer wall of the abutting head (53); a first sliding groove (211) for slidingly cooperating with the abutting head (53) is provided on the bottom of the hinged portion (21); a third receiving groove (534) is provided on the top of the first sliding groove (211) The first slide groove (212) is provided with a limit rod (213) on the groove wall of the first slide groove (211) that can move up and down in the inner groove (535); the slide rod (51) is vertically arranged in the first slide groove (211); the top of the slide rod (51) is located in the third receiving groove (212); the abutment plate (52) is fixedly connected to the slide rod (51); the abutment head (53) is arranged in the first slide groove (211); the connecting head (54) is arranged at the bottom of the slide rod (51); the connecting head (54) is located in the first receiving groove (531); the spring (55) is arranged in the first receiving groove (531), and the two ends of the spring (55) respectively contact the bottom of the connecting head (54) and the bottom of the first receiving groove (531); The adjusting assembly (4) comprises an adjusting frame (41), an upper rack (42), a lower rack (43), a gear (44) and a locking component (45) for locking the gear (44); two second sliding grooves (411) symmetrically arranged in an upper and lower direction are provided in the adjusting frame (41); both ends of the gear (44) are provided with a rotating shaft (441); the adjusting frame (41) is arranged on the bottom plate (1); the upper rack (42) and the lower rack (43) are respectively slidably arranged in the two second sliding grooves (411); the gear (44) is rotatably arranged on the adjusting frame (41) through two rotating shafts (441); the upper rack (42) and the lower rack (43) are both engaged with the gear (44); the upper rack (42) and the lower rack (43) are respectively fixedly connected to the other end of the two L-shaped mounting plates (31); and the locking component (45) is located beside one of the rotating shafts (441).
2. The slow-release rebound handrail according to claim 1, characterized in that: A first buffer rubber ring (521) is provided on the top of the abutting plate (52).
3. The slow-release rebound handrail according to claim 1 or 2, characterized in that: A second buffer rubber ring (56) is fixed to the top of the first accommodating groove (531).
4. The slow-release rebound handrail according to claim 3, characterized in that: The bottom of the abutment head (53) is provided with a rubber buffer layer.
5. The slow-release rebound handrail according to claim 1, characterized in that: The cross sections of the upper rack (42) and the lower rack (43) are both in the shape of an "I" character.
6. The slow-release rebound handrail according to claim 1 or 5, characterized in that: The locking component (45) includes a locking cap (451), a moving rod (452), a shifting block (453) and a bracket (454), wherein a locking block (442) with a polygonal cross section is provided on the side wall of one of the rotating shafts (441), a locking groove matched with the locking block (442) is provided at the head end of the locking cap (451), a third sliding groove (455) slidably matched with the moving rod (452) is provided on the bracket (454), a moving groove (456) for the shifting block (453) to move is provided on the side wall of the bracket (454), and the moving groove (456) is communicated with the third sliding groove (455), the bracket (454) is arranged on the bottom plate (1), the moving rod (452) is arranged in the third sliding groove (455), and the locking cap (451) is fixedly connected to the head end of the moving rod (452).
7. The slow-release rebound handrail according to claim 6, characterized in that: The cross section of the moving rod (452) is polygonal.
8. The slow-release rebound handrail according to claim 7, characterized in that: Anti-slip grooves are provided on the outer wall of the shifting block (453).
Citation Information
Patent Citations
Squatting pan handrail
CN204671055U
Middle armrest low-speed laying-down mechanism
CN215552740U