Self-lubricating connecting mechanism of bed board

Abstract

The utility model discloses a bed board self-lubricating connecting mechanism which comprises a special bolt, two bed board connecting pieces are installed on the outer side of the special bolt, antifriction sleeves are installed on the outer sides of the bed board connecting pieces, the two bed board connecting pieces are attached and contacted through the antifriction sleeves, one end of the special bolt is in threaded connection with a locking nut, and the other end of the special bolt is in threaded connection with the locking nut. The special bolts are rotationally connected with the two bed board connecting pieces through locking nuts; a mute pad is arranged between the bed board connecting piece and the antifriction sleeve, the bed board connecting piece is connected with the antifriction sleeve through the mute pad, an isolation convex ring is arranged in the middle of the antifriction sleeve, and the antifriction sleeve is connected with the special bolt through the isolation convex ring. And a first multi-layer positioning ring is arranged on one side of the antifriction sleeve. The antifriction sleeve is sleeved outside the connecting piece, so that contact and friction of the connecting piece can be effectively avoided, abnormal sound and plastic powder separation are avoided, and the service life of the connecting piece is kept.

Description

Technical Field

[0001] The utility model relates to the technical field of medical instruments, in particular to a self-lubricating connecting mechanism of a bed board. Background Art

[0002] A hospital bed generally refers to a nursing bed, which is designed according to the patient's treatment needs and bedridden lifestyle so that family members can accompany the patient. It has multiple nursing functions and operation buttons, and is an insulated and safe bed. It has functions such as weight monitoring, back-raising for dining, intelligent turning over, prevention of bedsores, negative pressure urine collection and bedwetting alarm monitoring, mobile transportation, rest, rehabilitation (passive movement, standing), drug administration and infusion. A rehabilitation bed can be used alone or in conjunction with treatment or rehabilitation equipment. When the height of the bed is adjusted, the connecting pieces of the bed board will rotate relative to each other.

[0003] The existing bed board connecting parts of the hospital bed will produce hard metal friction during the mutual rotation process, which will produce abnormal noise, the surface plastic powder will fall off, and the hospital disinfectant will accelerate rust; therefore, it does not meet the existing needs. In this regard, we propose a self-lubricating connection mechanism for the bed board. Utility Model Content

[0004] The purpose of the utility model is to provide a self-lubricating connection mechanism for a bed board, so as to solve the problems that the bed board connection parts of the existing hospital beds proposed in the above-mentioned background technology produce hard metal friction during the mutual rotation process, produce abnormal noise, and the surface plastic powder will fall off, and the addition of hospital disinfectant will accelerate rusting.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a self-lubricating connection mechanism of a bed board, comprising a special bolt, two bed board connecting plates are installed on the outer side of the special bolt, and a friction-reducing sleeve is installed on the outer side of the bed board connecting plate. The two bed board connecting plates are in close contact through the friction-reducing sleeve, and one end of the special bolt is threadedly connected with a locking nut, and the special bolt is rotatably connected to the two bed board connecting plates through the locking nut.

[0006] Preferably, a soundproof pad is provided between the bed board connecting plate and the friction reducing sleeve, the bed board connecting plate and the friction reducing sleeve are connected through the soundproof pad, an isolation convex ring is provided in the middle of the friction reducing sleeve, and the friction reducing sleeve is connected to the special bolt through the isolation convex ring.

[0007] Preferably, a first multi-layer positioning ring is provided on one side of the friction-reducing sleeve, and a second multi-layer positioning ring is provided on the other side of the friction-reducing sleeve. The friction-reducing sleeve, the first multi-layer positioning ring and the second multi-layer positioning ring are integrally injection molded. The diameter of the first multi-layer positioning ring is smaller than the diameter of the second multi-layer positioning ring. The two friction-reducing sleeves are mutually interlocked and connected through the first multi-layer positioning ring and the second multi-layer positioning ring.

[0008] Preferably, a lubrication seat is fixedly installed at one end of the friction-reducing sleeve, a partition pressure plate is movably installed on the inner side of the lubrication seat, an oil storage bin is provided between the partition pressure plate and the friction-reducing sleeve, the interior of the oil storage bin is filled with lubricating grease, two guide channels are provided inside the friction-reducing sleeve, and the oil storage bin is through-connected with the two guide channels.

[0009] Preferably, both ends of the partition pressure plate are connected to the lubrication seat via supporting springs, the middle part of the partition pressure plate is slidably connected with an oiling nozzle, the oiling nozzle is threadedly connected to the lubrication seat, one end of the oiling nozzle passes through the lubrication seat and the middle part of the partition pressure plate and is in close contact with the friction reducing sleeve, one end of the oiling nozzle is provided with a plurality of guide holes, and the oiling nozzle is through-connected to the oil storage tank via the plurality of guide holes.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] 1. The utility model makes the two bed board connecting pieces contact each other through the friction-reducing sleeve and the mute pad, which can effectively reduce the abnormal noise during the mutual rotation process, avoid the metal hard friction generated when the two bed board connecting pieces are in direct contact, and avoid the bed board connecting piece from directly contacting the special bolt through the isolation convex ring, reduce the friction degree of the special bolt on the bed board connecting piece, and realize the protection of the surface plastic powder of the bed board connecting piece. The two friction-reducing sleeves are interlocked and rotated with each other through the first multi-layer positioning ring and the second multi-layer positioning ring, so as to maintain the stability of the two bed board connecting pieces when they rotate with each other;

[0012] 2. The utility model provides an oil storage tank between the friction-reducing sleeve and the partition pressure plate. The partition pressure plate can continuously compress the lubricating grease under the support of two supporting springs, and then the lubricating grease can be continuously transported to the bed plate connecting piece and the friction-reducing sleeve and the special bolts through the guide channel, thereby maintaining the lubrication effect of the special bolts and the bed plate connecting piece, realizing self-lubricating operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 It is a structural schematic diagram of the friction reducing sleeve of the utility model;

[0015] Figure 3 It is a schematic diagram of the cross-sectional structure of the friction-reducing sleeve of the utility model;

[0016] Figure 4 This is a schematic diagram of the installation structure of the lubrication seat of the utility model;

[0017] Figure 5 It is a schematic diagram of the partial cross-sectional structure of the lubrication seat of the utility model.

[0018] In the figure: 1. bed board connecting plate; 2. anti-friction sleeve; 3. special bolt; 4. locking nut; 5. silent pad; 6. first multi-layer positioning ring; 7. second multi-layer positioning ring; 8. lubrication seat; 9. isolation convex ring; 10. guide channel; 11. separation pressure plate; 12. support spring; 13. oil filling nozzle; 14. guide hole; 15. oil storage tank. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0020] See also Figures 1 to 3 , the utility model provides an embodiment: a self-lubricating connection mechanism of a bed board, comprising a special bolt 3, two bed board connecting pieces 1 are installed on the outer side of the special bolt 3, a friction-reducing sleeve 2 is installed on the outer side of the bed board connecting piece 1, the two bed board connecting pieces 1 are in close contact through the friction-reducing sleeve 2, one end of the special bolt 3 is connected with a locking nut 4 through a thread, the special bolt 3 and the two bed board connecting pieces 1 are rotatably connected through the locking nut 4, a mute pad 5 is provided between the bed board connecting piece 1 and the friction-reducing sleeve 2, the bed board connecting piece 1 and the friction-reducing sleeve 2 are connected through the mute pad 5, and the two bed board connecting pieces 1 are in contact through the friction-reducing sleeve 2 and the mute pad 5, which can effectively reduce the abnormal sound during the mutual rotation process;

[0021] See also Figure 5 An isolation convex ring 9 is provided in the middle of the friction reducing sleeve 2, and the friction reducing sleeve 2 is connected to the special bolt 3 through the isolation convex ring 9. The isolation convex ring 9 can avoid direct contact between the bed board connecting piece 1 and the special bolt 3, thereby reducing the friction degree of the special bolt 3 on the bed board connecting piece 1.

[0022] See also Figures 2 to 4 A first multi-layer positioning ring 6 is provided on one side of the friction-reducing sleeve 2, and a second multi-layer positioning ring 7 is provided on the other side of the friction-reducing sleeve 2. The friction-reducing sleeve 2, the first multi-layer positioning ring 6 and the second multi-layer positioning ring 7 are integrally injection molded. The diameter of the first multi-layer positioning ring 6 is smaller than the diameter of the second multi-layer positioning ring 7. The two friction-reducing sleeves 2 are mutually embedded and connected through the first multi-layer positioning ring 6 and the second multi-layer positioning ring 7, so that the two friction-reducing sleeves 2 are mutually embedded and rotated through the first multi-layer positioning ring 6 and the second multi-layer positioning ring 7, thereby maintaining the stability of the two bed board connecting plates 1 when they rotate relative to each other.

[0023] See also Figure 4 and Figure 5A lubrication seat 8 is fixedly installed at one end of the friction-reducing sleeve 2, and a partition pressure plate 11 is movably installed on the inner side of the lubrication seat 8. An oil storage bin 15 is provided between the partition pressure plate 11 and the friction-reducing sleeve 2. The interior of the oil storage bin 15 is filled with lubricating grease. Both ends of the partition pressure plate 11 are connected to the lubrication seat 8 through support springs 12. The partition pressure plate 11 can continuously compress the lubricating grease under the support of the two support springs 12.

[0024] See also Figure 5 Two guide channels 10 are provided inside the friction-reducing sleeve 2, and the oil storage tank 15 is connected with the two guide channels 10. The middle part of the partition pressure plate 11 is slidably connected with an oiling nozzle 13, and the oiling nozzle 13 is connected with the lubrication seat 8 through a thread. One end of the oiling nozzle 13 passes through the lubrication seat 8 and the middle part of the partition pressure plate 11 and is in close contact with the friction-reducing sleeve 2. One end of the oiling nozzle 13 is provided with a plurality of guide holes 14, and the oiling nozzle 13 is connected with the oil storage tank 15 through a plurality of guide holes 14. The lubricating grease can be continuously transported to the bed plate connecting piece 1 and the friction-reducing sleeve 2 and the special bolt 3 through the guide channel 10, thereby maintaining the lubrication effect of the special bolt 3 and the bed plate connecting piece 1.

[0025] When in use, the bed board connecting piece 1 is inserted into the inner side of the anti-friction sleeve 2 and connected to the anti-friction sleeve 2 through the sound-proof pad 5, and the special bolt 3 is passed through the two bed board connecting pieces 1 and the anti-friction sleeve 2 and connected to the locking nut 4 through a thread, so that the special bolt 3 and the locking nut 4 can maintain the stability of the connection between the two bed board connecting pieces 1. The contact between the two bed board connecting pieces 1 through the friction-reducing sleeve 2 and the sound-proof pad 5 can effectively reduce the abnormal noise during the mutual rotation process, and avoid the hard metal friction generated when the two bed board connecting pieces 1 are in direct contact. At the same time, an isolation convex ring 9 is provided in the middle part of the friction-reducing sleeve 2, so that the friction-reducing sleeve 2 and the bed board connecting piece 1 are connected through the isolation convex ring 9, so that the isolation convex ring 9 can avoid direct contact between the bed board connecting piece 1 and the special bolt 3, reduce the friction degree of the special bolt 3 on the bed board connecting piece 1, and protect the surface plastic powder of the bed board connecting piece 1.

[0026] A first multi-layer positioning ring 6 and a second multi-layer positioning ring 7 are respectively provided on both sides of the friction-reducing sleeve 2, so that the two friction-reducing sleeves 2 can rotate in engagement with each other through the first multi-layer positioning ring 6 and the second multi-layer positioning ring 7, thereby maintaining the stability of the two bed board connecting plates 1 when rotating relative to each other, and an oil storage tank 15 is provided between the friction-reducing sleeve 2 and the partition pressure plate 11, and the oil filling nozzle 13, the oil storage tank 15 and the friction-reducing sleeve 2 are through-connected through the guide hole 14 and the guide channel 10, so that when the lubricating grease is injected through the oil filling nozzle 13, the partition pressure plate 11 can continuously compress the lubricating grease under the support of the two supporting springs 12, and then the lubricating grease can be continuously transported between the bed board connecting plate 1 and the friction-reducing sleeve 2 and the special bolt 3 through the guide channel 10, thereby maintaining the lubrication effect of the special bolt 3 and the bed board connecting plate 1, and realizing self-lubricating operation.

[0027] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A self-lubricating connection mechanism for a bed plate, comprising a special bolt (3), characterized in that: Two bed board connecting plates (1) are installed on the outer side of the special bolt (3), and a friction-reducing sleeve (2) is installed on the outer side of the bed board connecting plate (1). The two bed board connecting plates (1) are in close contact with each other through the friction-reducing sleeve (2). One end of the special bolt (3) is connected with a locking nut (4) through a thread, and the special bolt (3) and the two bed board connecting plates (1) are rotationally connected through the locking nut (4).

2. The self-lubricating connection mechanism of a bed board according to claim 1, characterized in that: A soundproof pad (5) is provided between the bed board connecting piece (1) and the friction reducing sleeve (2); the bed board connecting piece (1) and the friction reducing sleeve (2) are connected via the soundproof pad (5); an isolating convex ring (9) is provided in the middle of the friction reducing sleeve (2); and the friction reducing sleeve (2) and the special bolt (3) are connected via the isolating convex ring (9).

3. The self-lubricating connection mechanism of a bed board according to claim 1, characterized in that: A first multi-layer positioning ring (6) is provided on one side of the friction-reducing sleeve (2), and a second multi-layer positioning ring (7) is provided on the other side of the friction-reducing sleeve (2). The friction-reducing sleeve (2), the first multi-layer positioning ring (6) and the second multi-layer positioning ring (7) are integrally injection-molded. The diameter of the first multi-layer positioning ring (6) is smaller than the diameter of the second multi-layer positioning ring (7). The two friction-reducing sleeves (2) are connected to each other by interlocking with each other via the first multi-layer positioning ring (6) and the second multi-layer positioning ring (7).

4. The self-lubricating connection mechanism of a bed board according to claim 1, characterized in that: A lubrication seat (8) is fixedly mounted on one end of the friction-reducing sleeve (2), a partition pressure plate (11) is movably mounted on the inner side of the lubrication seat (8), an oil storage bin (15) is arranged between the partition pressure plate (11) and the friction-reducing sleeve (2), the interior of the oil storage bin (15) is filled with lubricating grease, two guide channels (10) are arranged inside the friction-reducing sleeve (2), and the oil storage bin (15) is connected to the two guide channels (10).

5. The self-lubricating connection mechanism of a bed board according to claim 4, characterized in that: Both ends of the partition pressure plate (11) are connected to the lubrication seat (8) via a support spring (12); the middle of the partition pressure plate (11) is slidably connected to an oiling nozzle (13); the oiling nozzle (13) is connected to the lubrication seat (8) via a thread; one end of the oiling nozzle (13) passes through the lubrication seat (8) and the middle of the partition pressure plate (11) and is in close contact with the friction reduction sleeve (2); one end of the oiling nozzle (13) is provided with a plurality of guide holes (14); the oiling nozzle (13) is connected to the oil storage tank (15) via the plurality of guide holes (14).

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