A height-adjustable lifting ring

Abstract

The present invention relates to the technical field of public transportation, and specifically discloses a height-adjustable lifting ring, comprising a lifting ring body, a connecting block connected to the inner wall of a carriage; a rotating ring connected to the inner wall of the lifting ring body via a torsion spring; a nylon belt with one end connected to the connecting block wound around the outer surface of the rotating ring, and two limit plates connected to the two ends of the rotating ring; a positioning block is provided in the lifting ring body, the positioning block has a push groove with a built-in button; the button is connected to the push groove via a return spring; the push groove is vertically connected to a through groove, and two limit steel balls are provided in the through groove; limit grooves are provided on both sides of the waist of the button, the spacing of which gradually increases along the direction approaching the limit plate, the maximum inner diameter of the limit groove is smaller than the diameter of the limit steel balls, and magnets are provided therein; the limit plate is provided with a plurality of limit holes; when the return spring is naturally extended, the two limit steel balls abut against the bottom of the button and engage with the limit holes; when the return spring is contracted, the limit steel balls engage with the limit grooves, and a gap is formed between the limit plates. The present invention realizes the adjustment of the lifting ring height.

Description

Technical Field

[0001] The present invention relates to the technical field of public transportation, in particular to a height-adjustable hanging ring. Background Art

[0002] With the acceleration of urban modernization, the urban population has increased and cars have become increasingly popular, resulting in increasingly congested urban traffic; therefore, traveling by public transportation such as buses and subways has become more and more people's preferred mode of travel.

[0003] However, due to the limited number of seats on public transportation, more passengers need to hold on to facilities such as seat backs, armrests, and hanging rings to keep their bodies upright, thereby reducing the possibility of falling during the operation of public transportation. Therefore, the setting of hanging rings plays an important role in the safety of passengers standing in the car.

[0004] Existing hanging rings are mainly divided into fixed and movable types, but both types cannot be adjusted in height, resulting in low comfort for passengers of different heights and passengers with poor standing positions. Moreover, even if passengers of different heights or passengers with poor standing positions can barely reach the hanging rings, they cannot hold them tightly, which still poses a safety hazard. Summary of the Invention

[0005] In view of the shortcomings of the existing technology, the purpose of the present invention is to provide a height-adjustable hanging ring that can improve the comfort of people of different heights and people with poor standing position when using the hanging ring and reduce safety hazards.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A height-adjustable lifting ring comprises a lifting ring body and a connecting block fixedly connected to the inner wall of a public transportation vehicle; the lifting ring body is fixedly connected to the connecting block via a nylon belt; a rotating ring is provided within the lifting ring body, and the inner wall of the rotating ring is rotatably connected to the lifting ring body via a torsion spring;

[0008] The nylon belt is wound around the rotating ring, one end of the nylon belt passes through the rotating ring and is detachably connected to one end of the torsion spring, and the other end extends from the lifting ring body and is fixedly connected to the connecting block;

[0009] A positioning block is fixedly connected to the inner wall of the lifting ring body, and a pressing groove is formed on the positioning block along the diameter direction of the rotating ring; a return spring is coaxially arranged in the pressing groove, and a button is connected to the end of the return spring away from the rotating ring; the end of the button away from the return spring protrudes from the lifting ring body;

[0010] An annular limiting plate is integrally formed at both ends of the rotating ring in the axial direction, and the nylon belt is located in the space formed by the two limiting plates and the rotating ring;

[0011] A through slot is provided inside the positioning block along the axis of the rotating ring and connected to the push slot. Two limiting steel balls are provided in the through slot, and the button is located between the two limiting steel balls. Limiting slots are provided on both sides of the waist of the button for the limiting steel balls to engage with.

[0012] The distance between the inner walls of the limiting groove gradually increases in the direction approaching the limiting plate, and the distance between the inner walls of the limiting groove at one end away from the limiting plate is less than the diameter of the limiting steel ball, and a magnet is provided in the limiting groove; the limiting plates are provided with a plurality of limiting holes for engaging with the limiting steel balls on one side close to each other, and the plurality of limiting holes are evenly distributed along the circumference of the limiting plate;

[0013] When the reset spring is in a natural state, the bottom of the button abuts against the two limit steel balls, and the two limit steel balls are engaged with the limit holes on the two limit plates; when the reset spring is in a contracted state, the limit steel balls are engaged with the limit grooves, and there is a gap between the limit steel balls and the limit plates.

[0014] Furthermore, the lifting ring body is formed by two oppositely arranged shells through the cooperation of a buckle and a slot.

[0015] Furthermore, the diameter of the limiting hole is smaller than the diameter of the limiting steel ball.

[0016] Furthermore, a "T"-shaped plug-in piece is provided at one end of the torsion spring, and the vertical portion of the "T"-shaped plug-in piece is in the same length direction as the torsion spring; and a clamping groove for the "T"-shaped plug-in piece to be clamped is provided along the length direction at one end of the nylon belt away from the connecting block;

[0017] The extension direction of the vertical portion of the "T"-shaped plug-in piece is the same as the length direction of the card slot, and the length of the horizontal portion of the "T"-shaped plug-in piece is less than or equal to the length of the card slot, and the length of the horizontal portion of the "T"-shaped plug-in piece is greater than the length of the card slot.

[0018] Furthermore, the rotating ring is provided with a mounting groove for the “T”-shaped plug-in piece to pass through.

[0019] Compared with the prior art, the present invention has the following technical effects:

[0020] The cooperation of the torsion spring, the rotating ring and the nylon belt in the present invention realizes the retraction and extension of the nylon belt, thereby realizing the adjustment of the height of the hanging ring; the cooperation of the button, the positioning block, the return spring, the limiting steel ball, the limiting groove, the magnet, the limiting plate and the limiting hole realizes the fixation of the rotating ring after rotation.

[0021] When adjusting the height, press the button to put the return spring into the contracted state. At this time, the through slot is connected to the limit slot, and the limit steel ball can enter the limit slot under the action of the magnet and engage with the limit slot. At this time, there is a gap between the limit steel ball, the limit plate and the magnet, so that the limit plate can rotate freely with the rotating ring.

[0022] Then, by pulling down or lifting up the lifting ring body, the length of the nylon belt can be adjusted under the action of the torsion spring, thereby adjusting the height of the lifting ring;

[0023] After adjusting the lifting ring to the appropriate height, release the button, and the reset spring drives the button to move away from the rotating ring, so that the limit steel ball is separated from the limit groove; when the reset spring returns to its natural state, the bottom of the button abuts against the two limit steel balls, so that the limit steel balls engage with the limit holes, thereby limiting the rotation of the limit plate, and then limiting the rotation of the rotating ring, thus fixing the height of the lifting ring;

[0024] In summary, the height-adjustable hanging ring of the present invention realizes the adjustment of the height of the hanging ring, thereby improving the comfort of people of different heights and people with poor standing positions when using the hanging ring, reducing the possibility of safety accidents caused by passengers being short of height or standing in poor positions and failing to hold the hanging ring tightly, and reducing safety hazards. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the overall structure of a height-adjustable lifting ring according to an embodiment of the present invention;

[0026] Figure 2 A diagram showing the coordination relationship among the connecting block, the lifting ring body, the rotating ring, the torsion spring, and the nylon belt in an embodiment of the present invention;

[0027] Figure 3 A diagram showing the connection relationship between the torsion spring and the nylon belt in an embodiment of the present invention;

[0028] Figure 4 2. This is a diagram showing the positional relationship between the button and the limiting steel ball in the natural state of the return spring in an embodiment of the present invention;

[0029] Figure 5 2. This is a diagram showing the positional relationship between the button and the limiting steel ball when the return spring is in the contracted state according to an embodiment of the present invention;

[0030] Explanation of the accompanying reference numerals: 1. lifting ring body; 2. shell; 3. connecting block; 4. button; 5. positioning block; 6. rotating ring; 7. torsion spring; 8. nylon belt; 9. return spring. DETAILED DESCRIPTION

[0031] The following is combined with Figure 1-5 The specific contents of the present invention are further explained in detail.

[0032] The present invention discloses a height-adjustable hanging ring, referring to Figure 1 、 Figure 2 and Figure 3The lifting ring includes a lifting ring body 1 and a connecting block 3 fixedly connected to the inner wall of a public transportation vehicle; the lifting ring body 1 is fixedly connected to the connecting block 3 through a nylon belt 8, and the lifting ring body 1 is formed by two oppositely arranged shells 2 through the cooperation of a buckle and a slot.

[0033] A rotating ring 6 is provided inside the lifting ring body 1, and the inner wall of the rotating ring 6 is rotatably connected to the lifting ring body 1 through a torsion spring 7; one end of the torsion spring 7 passes through the rotating ring 6 and is detachably connected to one end of a nylon belt 8, the nylon belt 8 is wound around the outside of the rotating ring 6, and the end of the nylon belt 8 away from the torsion spring 7 extends from the lifting ring body 1 and is fixedly connected to the connecting block 3.

[0034] A T-shaped connector is integrally formed at one end of the torsion spring 7. The vertical portion of the T-shaped connector aligns with the length of the torsion spring 7. A slot for the T-shaped connector is provided along the length of the nylon strap 8, away from the connecting block 3. The vertical portion of the T-shaped connector extends in the same direction as the slot, and the horizontal portion of the T-shaped connector is shorter than or equal to the slot. The horizontal portion of the T-shaped connector is longer than the slot. The rotating ring 6 also includes a mounting slot for the T-shaped connector.

[0035] In this way, the cooperation between the "T"-shaped plug-in piece and the card slot realizes the detachable connection between the torsion spring 7 and the nylon belt 8; the cooperation between the rotating ring 6, the torsion spring 7 and the nylon belt 8 realizes the adjustment of the height of the lifting ring body 1, thereby realizing the adjustment of the height of the lifting ring.

[0036] Reference Figure 2 、 Figure 4 and Figure 5 A positioning mechanism for limiting the rotation of the rotating ring 6 is also provided in the lifting ring body 1. The positioning mechanism includes a button 4, a return spring 9, a positioning block 5 fixedly connected to the top and the inner wall of the lifting ring body 1, and a nylon belt 8 is located between the rotating ring 6 and the positioning block 5; the positioning block 5 is provided with a pressing groove for the button 4 to move along the diameter direction of the rotating ring 6; the return spring 9 is arranged along the diameter direction of the rotating ring 6, and one end of the return spring 9 is fixedly connected to the button 4 and the other end is fixedly connected to the inner wall of the pressing groove; the button 4 protrudes from the lifting ring body 1 at one end away from the return spring 9, and the lifting ring body 1 is provided with a through groove for the button 4 to pass through.

[0037] Both ends of the rotating ring 6 in the axial direction are integrally formed with annular limit plates. The nylon belt 8 is located in the space formed by the two limit plates and the rotating ring 6. The positioning block 5 is located between the two limit plates, and there is a gap between both ends of the positioning block 5 and the limit plates.

[0038] The positioning block 5 has a through slot extending along the axis of the rotating ring 6. This slot is perpendicular to and connected to the push slot. Two retaining steel balls are positioned within the slot, with the button 4 positioned between them. The button 4 has retaining slots on either side of its waist for the retaining steel balls to engage. The distance between the inner walls of the retaining slots gradually increases as it approaches the retaining plate. The maximum distance between the inner walls of the retaining slots is less than the diameter of the retaining steel balls. Magnets are also positioned on the inner wall of the retaining slots away from the retaining plate. Several retaining holes for the retaining steel balls to engage are located on the adjacent sides of the retaining plate. These holes are evenly distributed along the circumference of the retaining plate, and their diameters are smaller than the diameter of the retaining steel balls.

[0039] When the reset spring 9 is in a natural state, the bottom of the button 4 abuts against the two limiting steel balls, and the two limiting steel balls are engaged with the limiting holes on the two limiting plates; when the reset spring 9 is in a contracted state, the limiting steel balls are engaged with the limiting grooves, and there are gaps between the limiting steel balls and the limiting plates and the magnets.

[0040] In this way, when adjusting the height of the lifting ring, press the button 4 so that the reset spring 9 is in a contracted state. At this time, the through groove is connected to the limit groove, and the limit steel ball can enter the limit groove and engage with the limit groove under the action of the magnet. At this time, there is a gap between the limit steel ball and the limit plate and the magnet, so that the limit plate can rotate freely with the rotating ring 6.

[0041] After adjusting the lifting ring to a suitable height, release the button 4, and the reset spring 9 drives the button 4 to move in a direction away from the rotating ring 6, so that the limiting steel ball disengages from the limiting groove; when the reset spring 9 returns to its natural state, the bottom of the button 4 abuts against the two limiting steel balls, so that the limiting steel balls engage with the limiting holes, thereby limiting the rotation of the limiting plate, and then limiting the rotation of the rotating ring 6, thereby fixing the height of the lifting ring.

[0042] In summary, the height-adjustable hanging ring of the present invention realizes the adjustment of the height of the hanging ring, thereby improving the comfort of people of different heights and people with poor standing positions when using the hanging ring, and reducing safety hazards.

[0043] The implementation principle of the height-adjustable hanging ring of the present invention is as follows: when adjusting the height, the button 4 is pressed down, so that the return spring 9 is in a contracted state. At this time, the through groove is connected with the limit groove, and the limit steel ball can enter the limit groove under the action of the magnet and engage with the limit groove. At this time, there is a gap between the limit steel ball and the limit plate and the magnet, so that the limit plate can rotate freely with the rotating ring 6;

[0044] Then, by pulling down or lifting up the lifting ring body 1, the length of the nylon belt 8 can be adjusted under the action of the torsion spring 7, thereby adjusting the height of the lifting ring;

[0045] After the lifting ring is adjusted to a suitable height, the button 4 is released, and the reset spring 9 drives the button 4 to move away from the rotating ring 6, so that the limit steel ball is separated from the limit groove; when the reset spring 9 returns to its natural state, the bottom of the button 4 abuts against the two limit steel balls, so that the limit steel balls are engaged with the limit holes, thereby limiting the rotation of the limit plate, and then limiting the rotation of the rotating ring 6, thereby fixing the height of the lifting ring;

[0046] In summary, the height-adjustable hanging ring of the present invention realizes the adjustment of the height of the hanging ring, thereby improving the comfort of people of different heights and people with poor standing positions when using the hanging ring, and reducing safety hazards.

Claims

1. A height-adjustable lifting ring, characterized by: The invention comprises a lifting ring body (1) and a connecting block (3) fixedly connected to the inner wall of a public transportation vehicle; the lifting ring body (1) is fixedly connected to the connecting block (3) via a nylon belt (8); a rotating ring (6) is provided in the lifting ring body (1); the inner wall of the rotating ring (6) is rotatably connected to the lifting ring body (1) via a torsion spring (7); The nylon belt (8) is wound around the outside of the rotating ring (6), one end of the nylon belt (8) passes through the rotating ring (6) and is detachably connected to one end of the torsion spring (7), and the other end extends from the lifting ring body (1) and is fixedly connected to the connecting block (3); A positioning block (5) is fixedly connected to the inner wall of the hanging ring body (1), and a pressing groove is provided on the positioning block (5) along the diameter direction of the rotating ring (6); a reset spring (9) is coaxially arranged in the pressing groove, and the end of the reset spring (9) away from the rotating ring (6) is connected to a button (4); the end of the button (4) away from the reset spring (9) protrudes from the hanging ring body (1); An annular limiting plate is integrally formed at both ends of the rotating ring (6) in the axial direction, and the nylon belt (8) is located in the space formed by the two limiting plates and the rotating ring (6); A through slot communicating with the push slot is provided inside the positioning block (5) along the axis of the rotating ring (6), two limiting steel balls are provided in the through slot, and the button (4) is located between the two limiting steel balls; limiting slots for the limiting steel balls to engage are provided on both sides of the waist of the button (4); The distance between the inner walls of the limiting groove gradually increases in the direction approaching the limiting plate, and the distance between the inner walls of the limiting groove at one end away from the limiting plate is less than the diameter of the limiting steel ball, and a magnet is provided in the limiting groove; the limiting plates are provided with a plurality of limiting holes for engaging with the limiting steel balls on one side close to each other, and the plurality of limiting holes are evenly distributed along the circumference of the limiting plate; When the reset spring (9) is in a natural state, the bottom of the button (4) abuts against the two limiting steel balls, and the two limiting steel balls engage with the limiting holes on the two limiting plates; when the reset spring (9) is in a contracted state, the limiting steel balls engage with the limiting grooves, and there is a gap between the limiting steel balls and the limiting plates.

2. A height-adjustable lifting ring according to claim 1, characterized in that: The hanging ring body (1) is formed by two oppositely arranged shells (2) through the cooperation of a buckle and a slot.

3. The height-adjustable hanging ring according to claim 1, wherein: The diameter of the limiting hole is smaller than the diameter of the limiting steel ball.

4. The height-adjustable hanging ring according to claim 1, wherein: A "T"-shaped plug-in piece is provided at one end of the torsion spring (7), and the vertical portion of the "T"-shaped plug-in piece is in the same length direction as the torsion spring (7); a clamping groove for the "T"-shaped plug-in piece to be clamped is provided along the length direction at one end of the nylon belt (8) away from the connecting block (3); The extension direction of the vertical portion of the "T"-shaped plug-in piece is the same as the length direction of the card slot, and the length of the horizontal portion of the "T"-shaped plug-in piece is less than or equal to the length of the card slot, and the length of the horizontal portion of the "T"-shaped plug-in piece is greater than the length of the card slot.

5. A height-adjustable lifting ring as claimed in claim 4, characterized in that: The rotating ring (6) is provided with a mounting groove for the "T"-shaped plug-in piece to pass through.

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