CN111185016A - Shoulder type safety pressure bar locking device - Google Patents
Shoulder type safety pressure bar locking device Download PDFInfo
- Publication number
- CN111185016A CN111185016A CN201910994977.2A CN201910994977A CN111185016A CN 111185016 A CN111185016 A CN 111185016A CN 201910994977 A CN201910994977 A CN 201910994977A CN 111185016 A CN111185016 A CN 111185016A
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- China
- Prior art keywords
- pawl
- double
- sided rack
- fixed
- connecting rod
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63G—MERRY-GO-ROUNDS; SWINGS; ROCKING-HORSES; CHUTES; SWITCHBACKS; SIMILAR DEVICES FOR PUBLIC AMUSEMENT
- A63G31/00—Amusement arrangements
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Abstract
The invention discloses a shoulder type safety pressing bar locking device which is arranged on a shoulder type safety pressing bar, the shoulder type safety pressing bar is arranged at the top end of a backrest through a rotating shaft, the shoulder type safety pressing bar locking device comprises a connecting rod and a double-sided rack which are fixed on the rotating shaft, the base, the rear end face on base upper portion is fixed with U type frame, U type frame top fixedly connected with air spring, the bottom and the base bottom fixed connection of air spring, the inner wall of two of U type frame all is fixed with slim cylinder, the ejector pin of slim cylinder runs through the lateral wall that U type frame extends to the U type frame outside, U type frame lateral wall is connected with the connecting rod handle through the round pin hub rotation, the ejector pin of slim cylinder rotates through the round pin hub connection at the connecting rod handle inside wall, the tip of connecting rod handle is connected with the pawl through the round pin hub rotation, two flank of tooth of two-sided rack are towards the pawl, the tip of pawl is used for the tooth meshing. Compared with the prior art, the invention has the advantages of ingenious structure, safety, reliability and simple operation.
Description
Technical Field
The invention relates to the field of safety facilities of a pressing bar of a playground seat, in particular to a shoulder type safety pressing bar locking device.
Background
At present, the known locking mechanism of the shoulder type safety pressing rod is in a ratchet wheel pawl type, the locking mechanism is that a ratchet wheel is directly installed at the rotating shaft of the pressing rod, and a pawl or a pin card with elastic yellow is matched, when the pressing rod is pressed towards the seat direction, the ratchet wheel rotates, the pawl or the pin card falls into the bottom of the ratchet wheel, and because the pawl or the ratchet wheel has a non-return function, the pressing rod cannot rotate at the moment, namely, the pressing rod can block the body of a passenger and cannot enable the passenger to be separated from the seat. The spring of the pawl or the pin card can ensure that the pawl is always contacted with the ratchet and cannot be loosened after being clamped. However, the included angle between each ratchet tooth of the structure is large, so that the distance between two positioning points of the pressing bar is large, and a gap and a swinging amount can occur, so that passengers with different fat and thin body shapes cannot be taken into consideration; the mechanism can only be unlocked manually, and is inconvenient to operate; meanwhile, the mechanism is a single-pawl device, and once the mechanism fails, the safety of passengers cannot be guaranteed.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides a shoulder type safety pressing bar locking device.
In order to achieve the purpose, the invention is implemented according to the following technical scheme:
a shoulder type safe pressure bar locking device is installed on a shoulder type safe pressure bar, the shoulder type safe pressure bar is installed at the top end of a seat backrest through a rotating shaft, the shoulder type safe pressure bar locking device comprises a connecting rod fixed on the rotating shaft, a double-sided rack hinged with the end of the connecting rod and vertically arranged on the back of the seat backrest, and a double-sided rack chute sleeved outside the double-sided rack, the bottom of the double-sided rack chute is fixedly provided with a shaft sleeve sleeved outside the double-sided rack, a joint bearing is fixed on the shaft sleeve along the axial direction, the outer ring of the joint bearing is fixed on a bearing seat, the bearing seat is fixed at the lower end of the back of the seat backrest, the lower end of the shaft sleeve penetrates through the joint bearing and is positioned below the bearing seat and is locked by a nut after being sleeved with a joint bearing spacer, and the tail end of the; a U-shaped frame is fixed on the rear end face of the double-sided rack sliding groove, the top end of the U-shaped frame is fixedly connected with an air spring, and the bottom of the air spring is connected with a longitudinal pin shaft through a transverse pin shaft; the inner walls of the two U-shaped frames are both fixed with a thin cylinder, an ejector rod of the thin cylinder penetrates through the side wall of the U-shaped frame and extends to the outer side of the U-shaped frame, the outer side wall of the U-shaped frame is rotatably connected with a connecting rod handle through a pin shaft, the ejector rod of the thin cylinder is rotatably connected to the inner side wall of the connecting rod handle through a pin shaft, the end part of the connecting rod handle is rotatably connected with a pawl through a pin shaft, a supporting rod fixed on the outer side wall of the U-shaped frame is arranged between the pawl and the ejector rod of the thin cylinder, the top end of the supporting rod is rotatably connected with the connecting handle through a pin shaft, the supporting rod and the connecting handle form a seesaw structure, two tooth surfaces of a double-sided rack face towards the pawl, the end part.
Furthermore, two sides of the double-sided rack sliding groove are respectively fixed with a pawl sliding seat, the front end face of the pawl sliding seat is provided with two grooves, the rear end of each groove is provided with a small groove, a pawl is assembled in each groove in a sliding mode, the rear end of the pawl is fixed with a pawl pin shaft, the two pawl pin shafts penetrate through the small grooves and the rear end face of the pawl sliding seat and then are fixed onto a connecting plate, a compression spring sleeved on the pawl pin shaft is arranged in each small groove, and the connecting plate is rotatably connected with the end portion of the connecting rod handle through a screw.
Furthermore, the shoulder type safety pressing bar locking device also comprises a switch button for controlling the ejection or retraction of the ejector rod of the thin cylinder.
Compared with the prior art, the shoulder type safe pressing bar is pressed and loosened by the double-sided rack connected to the shoulder type safe pressing bar and the pawls and the thin cylinders on two sides of the double-sided rack; the double-sided rack design ensures that the shoulder type safe pressing bar has wide adjustment range of the pressing position; the double-pawl design realizes double locking and ensures safety; the thin cylinder is designed to realize pneumatic control locking and unlocking, and the operation is simple; the spring extrusion function of the thin cylinder ensures that when the cylinder fails, the double-sided rack and the pawls on the two sides are still in a locking state, so that the safety of passengers is ensured, the handle can be manually operated to press down the spring of the thin cylinder, the shoulder type safe pressing rod is unlocked and loosened, and the thin cylinder type safe pressing rod is ingenious in structure, safe, reliable and simple to operate.
Drawings
Fig. 1 is a schematic structural view of a shoulder type safety pressing bar locking device according to an embodiment of the present invention.
Fig. 2 is a sectional view taken along the line a of fig. 1.
Fig. 3 is a partial plan view of a shoulder type safety pressing bar locking apparatus according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. The specific embodiments described herein are merely illustrative of the invention and do not limit the invention.
As shown in fig. 1 to 3, the shoulder type safety pressing bar locking device of the present embodiment is installed on a shoulder type safety pressing bar 1, the shoulder type safety pressing bar 1 is installed at the top end of a seat back through a rotating shaft 6, the shoulder type safety pressing bar locking device includes a connecting rod 7 fixed on the rotating shaft 6, a double-sided rack 2 hinged to the end of the connecting rod 7 and vertically arranged at the back of the seat back, a double-sided rack chute 201 sleeved outside the double-sided rack 2, a shaft sleeve 11 also sleeved outside the double-sided rack 2 and fixed at the bottom of the double-sided rack chute 201, a knuckle bearing 12 fixed on the shaft sleeve 11 along the axial direction, an outer ring of the knuckle bearing 12 fixed on a bearing seat 8, the bearing seat 8 fixed at the lower end of the seat back, the lower end of the shaft sleeve 11 passing through the knuckle bearing 12 and being located below the bearing seat 8 and being locked by a nut 14 after being sleeved on the knuckle bearing spacer 13, the end of the double-sided rack 2 passing 15; a U-shaped frame 9 is fixed on the rear end face of the double-sided rack sliding groove 201, the top end of the U-shaped frame 9 is fixedly connected with an air spring 10, and the bottom of the air spring 10 is connected with a longitudinal pin 15 through a transverse pin 16; the inner walls of the two U-shaped frames 9 are provided with a first thin cylinder 51 and a second thin cylinder 52, the mandrils of the first thin cylinder 51 and the second thin cylinder 52 respectively penetrate through the side wall of the U-shaped frame 9 and extend to the outer side of the U-shaped frame 9, the outer side wall of the U-shaped frame 9 is rotatably connected with a first connecting rod handle 41 and a second connecting rod handle 42 through a pin shaft, the mandrils of the first thin cylinder 51 are rotatably connected with the inner side wall of the first connecting rod handle 41 through a pin shaft, the mandrils of the second thin cylinder 52 are rotatably connected with the inner side wall of the second connecting rod handle 42 through a pin shaft, a first pawl slide seat 33 and a second pawl slide seat 34 are fixed on two sides of the double-sided rack chute 201, two grooves 35 are respectively arranged on the front end surfaces of the first pawl slide seat 33 and the second pawl slide seat 34, the rear ends of the grooves 35 are provided, two pawl pin shafts 37 on one side penetrate through the small groove 36 and the rear end faces of the first pawl slide seat 33 and the second pawl slide seat 34 and are fixed on a first connecting plate 39, two pawl pin shafts 37 on the other side penetrate through the small groove 36 and the rear end faces of the second pawl slide seat 34 and are fixed on a second connecting plate 310, a compression spring 38 sleeved on the pawl pin shafts 37 is arranged in the small groove 36, and the compression spring 38 is used for ensuring the pawl 3 to be locked with the double-sided rack 2, so that the locking redundancy is increased, and the safety is ensured; the first connecting plate 39 is rotatably connected with the end of the first connecting rod handle 41 through a first screw 31, the second connecting plate 310 is rotatably connected with the end of the second connecting rod handle 42 through a second screw 32, a support rod 17 fixed on the outer side wall of the U-shaped frame 9 is arranged between the pawl 3 and the ejector rod of the thin cylinder, the top end of the support rod 17 is rotatably connected with the connecting handle through a pin, the support rod 17 and the connecting handle form a seesaw structure, two tooth surfaces of the double-sided rack 2 face the pawl 3, the end of the pawl 3 is used for tooth meshing of the double-sided rack, and the first connecting rod handle 41 and the second connecting rod handle 42 drive the pawl to be pressed into or separated from teeth of the double-sided rack 2 when the ejector rod of the first thin cylinder 51 and the second thin cylinder 52 is ejected or retracted.
The specification is as follows: the structure that this embodiment is general to rotate through round pin axle and is connected is similar with the structure that the fulcrum of seesaw is connected can rotate around the round pin axle, can directly adopt this kind of structure, and this embodiment is no longer specifically repeated.
In this embodiment, the gas spring 10 is downwardly telescopic, the upper end of the gas spring is fixed, the lower end of the gas spring 10 is connected with the lower end of the double-sided rack 2, after the pawl 3 is separated from the double-sided rack 2, the nitrogen gas in a compressed state of the gas spring 10 is pushed downwardly to enable the pressing rod to automatically bounce for a certain distance, and the pressing rod is lifted under the action of the gas spring 10 until the elasticity of the gas spring 10 and the self gravity of the pressing rod reach balance. Then, a passenger or an operator slightly pushes the pressing bar upwards, the gas spring 10 is still in a compressed state, so that the applied pushing force is not large, the gas spring 10 is equivalent to a booster, and children can lift the pressing bar. Lifted a distance and the person leaves the seat.
In the actual use process, the shoulder type safe pressing rod 1 cannot be pressed down infinitely, so that when the belly of the thinnest person is touched, the double-sided rack 2 has allowance, and the gas spring 10 also has allowance. The length of tooth on 2 two-sided racks can guarantee to press the thick stick no matter in what position (no matter passenger's fat thin), as long as the outage, can both lock shoulder formula safety pressure thick stick 1, avoids appearing shoulder formula safety pressure thick stick 1 and presses not the tight condition of the pressure thick stick lock of falling position to take place.
In the actual use process, the shoulder type safety pressure bar locking device further comprises a switch button (not shown in the figure) for controlling the ejection or retraction of the ejector rods of the first thin cylinder 51 and the second thin cylinder 52, so that the first thin cylinder 51 and the second thin cylinder 52 can be conveniently controlled, and the operation of a user is convenient; the first link lever 41 and the second link lever 42 are not normally used, and an operator manually opens the lock mechanism only when there is a power failure or a malfunction.
In the using process, the double-sided rack 2, the first pawl 31 and the second pawl 32 are used for realizing the compression and the release of the shoulder type safety pressing rod, the position of the pressing shoulder can be continuously adjusted, the automatic locking is realized, and the gap and the amount of play are reduced; the double-sided rack design ensures that the shoulder type safe pressing bar has wide adjustment range of the pressing position; the double-pawl design realizes double locking and ensures safety; the shoulder type safe pressure bar is unlocked immediately by pneumatically controlling the thin cylinder to lift the pawl without manually lifting the pawl for unlocking; after the thin cylinder fails, the spring extrusion function at the back of the pawl ensures that the double-sided rack and the pawls at two sides are still in a locking state, the locking is redundant, the safety is ensured, and the handle can be operated to manually unlock; convenient operation, simple structure, multiple protection, safety and reliability. The specific operation is as follows:
the method for realizing locking comprises the following steps: after the shoulder type safe pressure bar 1 is pulled down, the double-sided rack 2 rises, the ejector rods of the first thin cylinder 51 and the second thin cylinder 52 are ejected out, the first pawl 31 and the second pawl 32 are pressed into teeth at two sides of the double-sided rack 2 through the first connecting rod handle 41 and the second connecting rod handle 42, the rack is locked, and the double-sided rack 2 cannot descend because the first pawl 31 and the second pawl 32 or the double-sided rack 2 have a non-return function, so that the shoulder type safe pressure bar 1 cannot be lifted up, namely, only the shoulder type safe pressure bar 1 is allowed to continuously press a body towards a locking direction and cannot move towards an opening direction; thereby achieving effective locking.
The method for realizing pneumatic unlocking comprises the following steps: after the mandrils of the first thin cylinder 51 and the second thin cylinder 52 retract, the first pawl 31 and the second pawl 32 are separated from the double-sided rack 2 through the first connecting rod handle 41 and the second connecting rod handle 42, the double-sided rack 2 can move up and down, the shoulder type safe pressing rod 1 is allowed to be freely opened, an angle can be opened under the action of the gas spring 10, most of the weight of the shoulder type safe pressing rod 1 is balanced by the gas spring 10, and women and children can easily lift the shoulder type safe pressing rod 1.
When the first thin cylinder 51 and the second thin cylinder 52 fail, the spring extrusion function of the first thin cylinder 51 and the second thin cylinder 52 ensures that the ejector rods of the first thin cylinder 51 and the second thin cylinder 52 are in an extrusion state, and the double-sided rack 2, the first pawl 31 and the second pawl 32 are still in a locking state, so that safety is ensured.
When the double-sided rack 2 and the first pawl 31 and the second pawl 32 are in a locking state, due to failure or other emergency situations of the first thin cylinder 51 and the second thin cylinder 52, the first connecting rod handle 41 and the second connecting rod handle 42 can be manually operated, the first pawl 31 and the second pawl 32 are lifted to be separated from the double-sided rack 2, the double-sided rack 2 can move up and down, the shoulder type safety pressing rod 1 is allowed to be freely opened, manual unlocking is realized, and safety is ensured.
The technical solution of the present invention is not limited to the limitations of the above specific embodiments, and all technical modifications made according to the technical solution of the present invention fall within the protection scope of the present invention.
Claims (3)
1. The utility model provides a thick stick locking device is pressed to shoulder formula safety installs on the thick stick is pressed to shoulder formula safety, the thick stick is pressed to shoulder formula safety is installed on the backrest top through the pivot, its characterized in that: the shoulder type safe pressure bar locking device comprises a connecting rod fixed on a rotating shaft, a double-sided rack which is hinged with the end part of the connecting rod and is vertically arranged at the back of a seat backrest, and a double-sided rack sliding groove sleeved outside the double-sided rack, wherein the bottom of the double-sided rack sliding groove is fixedly provided with a shaft sleeve which is also sleeved outside the double-sided rack; a U-shaped frame is fixed on the rear end face of the double-sided rack sliding groove, the top end of the U-shaped frame is fixedly connected with an air spring, and the bottom of the air spring is connected with a longitudinal pin shaft through a transverse pin shaft; the inner walls of the two U-shaped frames are both fixed with a thin cylinder, an ejector rod of the thin cylinder penetrates through the side wall of the U-shaped frame and extends to the outer side of the U-shaped frame, the outer side wall of the U-shaped frame is rotatably connected with a connecting rod handle through a pin shaft, the ejector rod of the thin cylinder is rotatably connected to the inner side wall of the connecting rod handle through a pin shaft, the end part of the connecting rod handle is rotatably connected with a pawl through a pin shaft, a supporting rod fixed on the outer side wall of the U-shaped frame is arranged between the pawl and the ejector rod of the thin cylinder, the top end of the supporting rod is rotatably connected with the connecting handle through a pin shaft, the supporting rod and the connecting handle form a seesaw structure, two tooth surfaces of a double-sided rack face towards the pawl, the end part.
2. The shoulder safety bar locking device of claim 1, wherein: the double-sided rack sliding groove is characterized in that pawl sliding seats are fixed to two sides of the double-sided rack sliding groove respectively, two grooves are formed in the front end face of each pawl sliding seat, small grooves are formed in the rear ends of the grooves, pawls are assembled in the grooves in a sliding mode, pawl pin shafts are fixed to the rear ends of the pawls, the two pawl pin shafts penetrate through the small grooves and the rear end faces of the pawl sliding seats and then are fixed to connecting plates, compression springs sleeved on the pawl pin shafts are arranged in the small grooves, and the connecting plates are rotatably connected with the end portions of the.
3. The shoulder safety pressure bar locking device according to claim 1 or 2, wherein: the shoulder type safe pressure bar locking device also comprises a switch button for controlling the ejection or retraction of the ejector rod of the thin cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910994977.2A CN111185016A (en) | 2019-10-18 | 2019-10-18 | Shoulder type safety pressure bar locking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910994977.2A CN111185016A (en) | 2019-10-18 | 2019-10-18 | Shoulder type safety pressure bar locking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111185016A true CN111185016A (en) | 2020-05-22 |
Family
ID=70684396
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910994977.2A Pending CN111185016A (en) | 2019-10-18 | 2019-10-18 | Shoulder type safety pressure bar locking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111185016A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111841026A (en) * | 2020-07-30 | 2020-10-30 | 郑州航空工业管理学院 | Shoulder pressing and locking mechanism of amusement equipment |
| CN112717429A (en) * | 2021-01-29 | 2021-04-30 | 中山市金龙游乐设备有限公司 | Safety seat for amusement equipment |
| CN113209643A (en) * | 2021-06-04 | 2021-08-06 | 河南省特种设备安全检测研究院 | Shoulder pressure type safety pressure bar locking device |
| CN113384905A (en) * | 2021-06-30 | 2021-09-14 | 河南省特种设备安全检测研究院 | Non-return locking device of roller coaster integrated leg-pressing type safety pressing bar |
-
2019
- 2019-10-18 CN CN201910994977.2A patent/CN111185016A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111841026A (en) * | 2020-07-30 | 2020-10-30 | 郑州航空工业管理学院 | Shoulder pressing and locking mechanism of amusement equipment |
| CN112717429A (en) * | 2021-01-29 | 2021-04-30 | 中山市金龙游乐设备有限公司 | Safety seat for amusement equipment |
| CN112717429B (en) * | 2021-01-29 | 2024-06-07 | 中山市金龙游乐设备有限公司 | Safety seat for amusement equipment |
| CN113209643A (en) * | 2021-06-04 | 2021-08-06 | 河南省特种设备安全检测研究院 | Shoulder pressure type safety pressure bar locking device |
| CN113384905A (en) * | 2021-06-30 | 2021-09-14 | 河南省特种设备安全检测研究院 | Non-return locking device of roller coaster integrated leg-pressing type safety pressing bar |
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