Telescopic guardrail on car roof
阅读说明：本技术 轿顶伸缩护栏 (Telescopic guardrail on car roof ) 是由 于迪 朱维良 钱磊 于 2018-07-10 设计创作，主要内容包括：本发明公开了一种轿顶伸缩护栏,左侧护栏、右侧护栏、后侧上护栏及后侧下护栏形成包围区域来保护轿顶空间；左侧护栏同右侧护栏结构相同且对称设置,采用旋转结构来实现轿顶伸缩护栏拉伸和收起,通过一个前部的握把便可以控制左侧护栏、右侧护栏的伸缩,同时带动后部护栏一起伸缩,轿顶伸缩护栏处于收起或拉伸状态时,握把都处于可以用手直接操作的范围内,在层站侧就能通过控制握把来完成轿顶伸缩护栏的拉伸和收起,不但电梯对顶层空间的要求小,而且锁定和解锁便捷,减少了维保人员操作难度和掉落到轿顶外部的风险。(The invention discloses a car top telescopic guardrail, wherein a left guardrail, a right guardrail, a rear upper guardrail and a rear lower guardrail form an enclosed area to protect a car top space; the left side guardrail is the same and the symmetry sets up with right side guardrail structure, adopt revolution mechanic to realize that the flexible guardrail of sedan-chair top is tensile and pack up, through a anterior handle alright in order to control the left side guardrail, the flexible of right side guardrail, it is flexible together to drive the rear portion guardrail simultaneously, the flexible guardrail of sedan-chair top is in when packing up or tensile state, the handle all is in can with the within range of hand direct operation, just can accomplish the stretching and packing up of the flexible guardrail of sedan-chair top through the control handle in the landing side, not only the elevator is little to the requirement in top layer space, and it is convenient to lock and unblock, the maintenance personnel operation degree of difficulty and the outside risk of sedan.)
1. A car top telescopic guardrail is characterized by comprising a left guardrail, a right guardrail, a rear upper guardrail and a rear lower guardrail;
the rear upper guardrail and the rear lower guardrail are positioned between the left guardrail and the right guardrail;
the left guardrail and the right guardrail have the same structure and are symmetrically arranged;
the left guardrail comprises a first bracket, a second bracket and a main grip component;
the first bracket is in a mouth shape or a half mouth shape in longitudinal section, namely the first bracket comprises a left vertical side surface, a right vertical side surface and an upper horizontal plane connected between the upper ends of the left vertical side surface and the right vertical side surface;
the first bracket and the second bracket of the left guardrail are distributed up and down and are parallel to each other;
the rear upper guardrail is parallel to the rear lower guardrail;
the right vertical side face of the rear end of the first bracket of the left guardrail and the left end of the rear lower guardrail are fixed together and are mutually vertical;
the right side of the rear end of the second bracket of the left guardrail and the left end of the guardrail on the rear side are fixed together and are mutually vertical;
the upper horizontal surface of the first bracket of the left guardrail is connected with the lower side surface of the second bracket through at least two connecting rods, and the connecting rods can rotate around the end points of the connecting rods, which are connected with the first bracket and the second bracket, back and forth; one connecting rod is connected between the upper horizontal surface of the rear end of the first type of bracket and the lower side surface of the rear end of the second type of bracket of the left guardrail to serve as a detection connecting rod, and the other connecting rod is connected between the upper horizontal surface of the first type of bracket and the lower side surface of the front end of the second type of bracket to serve as a main control connecting rod;
the main grip component comprises a grip and a grip clamping seat;
the grip clamping seat is fixed on the front side surface of the main control connecting rod;
the handle is fixed on the lower side surface of the second bracket;
when the connecting rod for connecting the first bracket and the second bracket is vertical to the first bracket and the second bracket, the car top telescopic guardrail is in a stretching state;
when the connecting rod connecting the first type of support and the second type of support rotates forwards around the lower end of the connecting rod and is attached to the first type of support, the car top telescopic guardrail is in a retracted state, and the distance from the front end of the second type of support to the front end of the first type of support is smaller than a set distance;
when the telescopic guardrail on the car top is in a stretching state, the connecting rod for connecting the first bracket and the second bracket is forbidden or allowed to rotate relative to the second bracket by inserting the plug pin of the handle into or retracting out of the handle clamping seat.
2. The telescopic car roof guardrail of claim 1,
the cross section structure of the guardrail on the rear side is L-shaped or [ -shaped;
the rear lower guardrail structure is in a mouth shape or a [ -shape;
when the car top telescopic guardrail is in a retracted state, the distance from the front end of the second bracket to the front end of the first bracket is less than 5 CM.
3. The telescopic car roof guardrail of claim 1,
the left vertical side of the first type of support of left side guardrail has "L" shape fixing base, and "L" shape fixing base is provided with the mounting hole.
4. The telescopic car roof guardrail of claim 1,
the car top telescopic guardrail also comprises a first switch component;
the pin part and the jack part of the first switch component are respectively fixed on the upper side of the rear end of the first bracket of the left guardrail or the right guardrail and the rear side of the lower end of the detection connecting rod; when the car top telescopic guardrail is in a stretching state, the contact pin of the contact pin part of the first switch assembly is inserted into the jack of the jack part, and the first switch assembly outputs a stretching state signal.
5. The telescopic car roof guardrail of claim 1,
at least two pairs of mounting seats are correspondingly and fixedly arranged on the upper horizontal surface of the first bracket and the lower side surface of the second bracket of the left guardrail;
the lower end of a main control connecting rod which is connected with the first type bracket and the second type bracket is in front-back pivoting connection with the first type bracket through a mounting seat; the upper and lower ends of other connecting rods connecting the first type of bracket and the second type of bracket are respectively connected with the first type of bracket and the second type of bracket in a front-back pivoting manner through mounting seats.
6. The telescopic car roof guardrail of claim 1,
the main grip component also comprises a grip cover and a spiral spring;
the handle cover shell is provided with an upper mounting hole for mounting and fixing to the lower side surface of the second bracket; the left shell and the right shell are provided with side mounting holes for connecting the upper ends of the main control connecting rods through a pivot shaft;
the handle is mounted in the handle cover;
a cylindrical rod is arranged above the handle, and a cylindrical bolt is arranged below the handle;
the spiral spring is sleeved on the cylindrical rod, and the upper end of the spiral spring is abutted against the upper shell of the handle cover shell;
when the grip is pressed upwards from the lower part of the grip, the grip moves upwards by overcoming the gravity and the elasticity of the spiral spring, and a cylindrical bolt arranged below the grip retracts out of the grip clamping seat;
when the grip is released, the grip moves downwards under the action of gravity and the elastic force of the spiral spring, so that the cylindrical plug pin arranged below the grip is inserted into the grip clamping seat.
7. The telescopic car roof guardrail of claim 6,
the handle is a solid plastic body, and the handle cover is made of a thin plate.
8. The telescopic car roof guardrail of claim 6,
two avoidance holes are formed in the horizontal plane at the front end of the first bracket of the left guardrail;
when the connecting rod connecting the first type of support and the second type of support rotates forwards around the lower end of the connecting rod and is attached to the first type of support, the lower end of the handle cover shell and the front end of the handle clamping seat respectively extend into the two avoiding holes, and the car top telescopic guardrail is in a retracted state.
9. The telescopic car roof guardrail of claim 1,
the left guardrail also comprises a third bracket and a roller assembly;
the upper horizontal surface of the first bracket of the left guardrail is connected with the lower side surface of the third bracket through at least two connecting rods, and the connecting rods can rotate around the end points of the connecting rods, which are connected with the first bracket and the third bracket, back and forth; one connecting rod is connected between the upper horizontal surface of the first bracket of the left guardrail and the lower side surface of the rear end of the third bracket, and the other connecting rod is connected between the upper horizontal surface of the front end of the first bracket and the lower side surface of the front end of the third bracket;
the longitudinal sections of the second bracket and the third bracket of the left guardrail are both in a [ -shape, and the opening sides of the second bracket and the third bracket are oppositely arranged and are in the same horizontal plane;
the roller assembly is arranged between the second bracket and the third bracket of the left guardrail and is used for enabling the third bracket to synchronously and reversely move along with the forward and backward movement of the second bracket.
10. The telescopic car roof guardrail of claim 9,
the roller assembly comprises a pivot shaft, a left roller and a right roller which are connected together through the pivot shaft;
the left idler wheel and the right idler wheel are respectively embedded into the grooves of the side openings of the second bracket and the third bracket of the left guardrail and can roll back and forth in the grooves.
11. The telescopic car roof guardrail of claim 10,
and meanwhile, stopping devices are arranged in the grooves of the side openings of the second bracket and the third bracket of the left guardrail and are used for stopping the roller assemblies from sliding out of the grooves.
12. The telescopic car roof guardrail of claim 9,
the roller assembly comprises a pivot shaft and a roller which is pivotally connected to one end of the pivot shaft, the roller is embedded into a groove with an opening in the side surface of the third bracket of the left guardrail and can roll back and forth in the groove, and the other end of the pivot shaft is fixed in a groove of the second bracket of the left guardrail.
13. The telescopic car roof guardrail of claim 9,
the roller components are sliding blocks, and the left end and the right end of each sliding block are respectively embedded into the grooves with openings in the side surfaces of the second bracket and the third bracket of the left guardrail and can slide back and forth in the corresponding grooves.
14. The telescopic car roof guardrail of claim 9,
the car top telescopic guardrail also comprises a second switch component;
the pin inserting part and the jack part of the second switch assembly are respectively fixed at the rear end of the second bracket of the left guardrail or the right guardrail and at the front side of the guardrail on the rear side; when the telescopic guardrail on the car top is in a retracted state, the contact pin of the contact pin part of the second switch assembly is inserted into the jack of the jack part, and the second switch assembly outputs a retracted state signal.
15. The telescopic car roof guardrail of claim 1,
the left guardrail also comprises a fourth bracket and an auxiliary handle component;
the upper horizontal surface of the first bracket of the left guardrail is connected with the lower side surface of the fourth bracket through at least two connecting rods, and the connecting rods can rotate around the end points of the connecting rods, which are connected with the first bracket and the fourth bracket, back and forth; one connecting rod is connected between the upper horizontal surface of the first bracket of the left guardrail 1 and the lower side surface of the rear end of the fourth bracket, and the other connecting rod is connected between the upper horizontal surface of the front end of the first bracket and the lower side surface of the front end of the fourth bracket to serve as an auxiliary control connecting rod;
the grip clamping seat of the auxiliary grip component is fixed on the rear side surface of the auxiliary control connecting rod;
the handle of the auxiliary handle component is fixed on the lower side surface of the fourth bracket;
when the connecting rod for connecting the first bracket and the fourth bracket is vertical to the first bracket and the fourth bracket, the fourth bracket is in a stretching state;
when the connecting rod connecting the first bracket and the fourth bracket rotates backwards around the lower end of the connecting rod and is attached to the first bracket, the fourth bracket is in a retracted state;
when the fourth bracket is in a stretching state, the bolt of the handle of the auxiliary handle component can be inserted into or retracted out of the handle clamping seat of the auxiliary handle component, and the connecting rod for connecting the first bracket and the fourth bracket is forbidden or allowed to rotate relative to the fourth bracket.
16. The telescopic ceiling guardrail of claim 15,
two avoidance holes are formed in the upper horizontal plane of the first bracket of the left guardrail;
when the connecting rod connecting the first type of support and the fourth type of support rotates backwards around the lower end of the connecting rod and is attached to the first type of support, the lower end of the grip cover shell of the auxiliary grip assembly and the front end of the grip clamping seat respectively extend into the two avoiding holes, and the fourth type of support is in a retracted state.
17. The telescopic ceiling guardrail of claim 15,
the car top telescopic guardrail also comprises a third switch component;
the pin part and the jack part of the third switch component are respectively fixed at the front end of the first bracket of the left guardrail 1 or the right guardrail 2 and the front side of the auxiliary control connecting rod; when the fourth type bracket is in a stretching state, the contact pin of the contact pin part of the third switch component is inserted into the jack of the jack part, and the third switch component outputs a stretching state signal.
18. The telescopic car roof guardrail of claim 1,
the left guardrail also comprises a fifth bracket;
the upper horizontal plane of the front part of the first bracket is lower than the upper horizontal plane of the rear part;
the upper horizontal plane at the rear part of the first bracket of the left guardrail is connected with the lower side surface of the second bracket through at least two connecting rods;
at least two parallel guide rods are vertically fixed on the lower side surface of the fifth type bracket;
a guide hole is formed in the upper horizontal plane of the front part of the first type of bracket;
and the guide rods fixed on the lower side surface of the fifth bracket are correspondingly inserted into the guide holes.
19. The telescopic ceiling guardrail of claim 18,
two avoidance holes are formed in the upper side face of the fifth bracket;
when the guide rods of the fifth type of support are correspondingly inserted into the guide holes of the first type of support, the lower side surface of the fifth type of support is attached to the upper horizontal surface of the front part of the first type of support, the connecting rod for connecting the first type of support and the second type of support rotates forwards around the lower end of the connecting rod and is attached to the fifth type of support, the lower end of the handle cover and the front end of the handle clamping seat respectively extend into the two avoiding holes, and the car top telescopic guardrail is in a retracted state.
Technical Field
The invention relates to elevator equipment, in particular to a car top telescopic guardrail.
Background
Most car top guard rails cannot be adjusted in height at present, which requires a large space at the top layer of an elevator shaft, and in a short top layer project, the height of the car top guard rails can limit the reduction of the height of the top layer. Therefore, in order to reduce the space of the top floor, the distance between the car top guard rail and the top of the shaft needs to be reduced. In order to solve the problem, a plurality of telescopic car top guard rails are available, but the existing telescopic car top guard rails are usually telescopic in a folding mode, maintenance personnel are required to perform multistep locking and unlocking of one-side guard rail by using two hands when stretching and fixing are performed, the other side guard rail is locked and unlocked, the unlocking mode is inconvenient, the maintenance personnel are required to stand on the car top to complete the operation of extending the car top guard rail, and the operation difficulty and the risk of falling to the outside of the car top of the maintenance personnel are increased.
Disclosure of Invention
The invention aims to solve the technical problem of providing a car top telescopic guardrail, wherein when the car top telescopic guardrail is in a retracted or stretched state, handles are in a range capable of being directly operated by hands, so that the requirement of an elevator on a top space is low, the locking and unlocking are convenient, and the operation difficulty of maintenance personnel and the risk of falling outside the car top are reduced.
In order to solve the technical problem, the car roof telescopic guardrail provided by the invention comprises a left guardrail, a right guardrail, a rear upper guardrail and a rear lower guardrail;
the rear upper guardrail and the rear lower guardrail are positioned between the left guardrail and the right guardrail;
the left guardrail and the right guardrail have the same structure and are symmetrically arranged;
the left guardrail comprises a first bracket, a second bracket and a main grip component;
the first bracket is in a mouth shape or a half mouth shape in longitudinal section, namely the first bracket comprises a left vertical side surface, a right vertical side surface and an upper horizontal plane connected between the upper ends of the left vertical side surface and the right vertical side surface;
the first bracket and the second bracket of the left guardrail are distributed up and down and are parallel to each other;
the rear upper guardrail is parallel to the rear lower guardrail;
the right vertical side face of the rear end of the first bracket of the left guardrail and the left end of the rear lower guardrail are fixed together and are mutually vertical;
the right side of the rear end of the second bracket of the left guardrail and the left end of the guardrail on the rear side are fixed together and are mutually vertical;
the upper horizontal surface of the first bracket of the left guardrail is connected with the lower side surface of the second bracket through at least two connecting rods, and the connecting rods can rotate around the end points of the connecting rods, which are connected with the first bracket and the second bracket, back and forth; one connecting rod is connected between the upper horizontal surface of the rear end of the first type of bracket and the lower side surface of the rear end of the second type of bracket of the left guardrail to serve as a detection connecting rod, and the other connecting rod is connected between the upper horizontal surface of the first type of bracket and the lower side surface of the front end of the second type of bracket to serve as a main control connecting rod;
the main grip component comprises a grip and a grip clamping seat;
the grip clamping seat is fixed on the front side surface of the main control connecting rod;
the handle is fixed on the lower side surface of the second bracket;
when the connecting rod for connecting the first bracket and the second bracket is vertical to the first bracket and the second bracket, the car top telescopic guardrail is in a stretching state;
when the connecting rod connecting the first type of support and the second type of support rotates forwards around the lower end of the connecting rod and is attached to the first type of support, the car top telescopic guardrail is in a retracted state, and the distance from the front end of the second type of support to the front end of the first type of support is smaller than a set distance;
when the telescopic guardrail on the car top is in a stretching state, the connecting rod for connecting the first bracket and the second bracket is forbidden or allowed to rotate relative to the second bracket by inserting the plug pin of the handle into or retracting out of the handle clamping seat.
Preferably, the cross section structure of the guardrail on the rear side is L-shaped or [ -shaped;
the rear lower guardrail structure is in a mouth shape or a [ -shape;
when the car top telescopic guardrail is in a retracted state, the distance from the front end of the second bracket to the front end of the first bracket is less than 5 CM.
Preferably, the left vertical side face of the first type of support of the left guardrail is welded with an L-shaped fixing seat, and the L-shaped fixing seat is provided with a mounting hole.
Preferably, the car top telescopic guardrail also comprises a first switch assembly;
the pin part and the jack part of the first switch component are respectively fixed on the upper side of the rear end of the first bracket of the left guardrail or the right guardrail and the rear side of the lower end of the detection connecting rod; when the car top telescopic guardrail is in a stretching state, the contact pin of the contact pin part of the first switch assembly is inserted into the jack of the jack part, and the first switch assembly outputs a stretching state signal.
Preferably, at least two pairs of mounting seats are correspondingly and fixedly arranged on the upper horizontal surface of the first bracket and the lower side surface of the second bracket of the left guardrail;
the lower end of a main control connecting rod which is connected with the first type bracket and the second type bracket is in front-back pivoting connection with the first type bracket through a mounting seat; the upper and lower ends of other connecting rods connecting the first type of bracket and the second type of bracket are respectively connected with the first type of bracket and the second type of bracket in a front-back pivoting manner through mounting seats.
Preferably, the main grip assembly further comprises a grip cover and a coil spring;
the handle cover shell is provided with an upper mounting hole for mounting and fixing to the lower side surface of the second bracket; the left shell and the right shell are provided with side mounting holes for connecting the upper ends of the main control connecting rods through a pivot shaft;
the handle is mounted in the handle cover;
a cylindrical rod is arranged above the handle, and a cylindrical bolt is arranged below the handle;
the spiral spring is sleeved on the cylindrical rod, and the upper end of the spiral spring is abutted against the upper shell of the handle cover shell;
when the grip is pressed upwards from the lower part of the grip, the grip moves upwards by overcoming the gravity and the elasticity of the spiral spring, and a cylindrical bolt arranged below the grip retracts out of the grip clamping seat;
when the grip is released, the grip moves downwards under the action of gravity and the elastic force of the spiral spring, so that the cylindrical plug pin arranged below the grip is inserted into the grip clamping seat.
Preferably, the grip is a solid plastic body, and the grip cover is made of a thin plate.
Preferably, two avoidance holes are formed in the upper horizontal plane of the front end of the first bracket of the left guardrail;
when the connecting rod connecting the first type of support and the second type of support rotates forwards around the lower end of the connecting rod and is attached to the first type of support, the lower end of the handle cover shell and the front end of the handle clamping seat respectively extend into the two avoiding holes, and the car top telescopic guardrail is in a retracted state.
Preferably, the left guardrail further comprises a third bracket and a roller assembly;
the upper horizontal surface of the first bracket of the left guardrail is connected with the lower side surface of the third bracket through at least two connecting rods, and the connecting rods can rotate around the end points of the connecting rods, which are connected with the first bracket and the third bracket, back and forth; one connecting rod is connected between the upper horizontal surface of the first bracket of the left guardrail and the lower side surface of the rear end of the third bracket, and the other connecting rod is connected between the upper horizontal surface of the front end of the first bracket and the lower side surface of the front end of the third bracket;
the longitudinal sections of the second bracket and the third bracket of the left guardrail are both in a [ -shape, and the opening sides of the second bracket and the third bracket are oppositely arranged and are in the same horizontal plane;
the roller assembly is arranged between the second bracket and the third bracket of the left guardrail and is used for enabling the third bracket to synchronously and reversely move along with the forward and backward movement of the second bracket.
Preferably, the roller assembly comprises a pivot shaft, and a left roller and a right roller which are connected together through the pivot shaft;
the left idler wheel and the right idler wheel are respectively embedded into the grooves of the side openings of the second bracket and the third bracket of the left guardrail and can roll back and forth in the grooves.
Preferably, a stopping device is arranged in the groove with the side openings of the second bracket and the third bracket of the left guardrail at the same time and is used for stopping the roller components from sliding out of the groove.
Preferably, the roller assembly comprises a pivot shaft and a roller pivotally connected to one end of the pivot shaft, the roller is embedded into a groove of the side opening of the third bracket of the left guardrail and can roll back and forth in the groove, and the other end of the pivot shaft is fixed in the groove of the second bracket of the left guardrail.
Preferably, the roller assemblies are sliding blocks, and the left ends and the right ends of the sliding blocks are respectively embedded into the grooves with the openings in the side surfaces of the second bracket and the third bracket of the left guardrail and can slide back and forth in the corresponding grooves.
Preferably, the car top telescopic guardrail also comprises a second switch assembly;
the pin inserting part and the jack part of the second switch assembly are respectively fixed at the rear end of the second bracket of the left guardrail or the right guardrail and at the front side of the guardrail on the rear side; when the telescopic guardrail on the car top is in a retracted state, the contact pin of the contact pin part of the second switch assembly is inserted into the jack of the jack part, and the second switch assembly outputs a retracted state signal.
Preferably, the left guardrail further comprises a fourth bracket and an auxiliary handle assembly;
the upper horizontal surface of the first bracket of the left guardrail is connected with the lower side surface of the fourth bracket through at least two connecting rods, and the connecting rods can rotate around the end points of the connecting rods, which are connected with the first bracket and the fourth bracket, back and forth; one connecting rod is connected between the upper horizontal surface of the first bracket of the
the grip clamping seat of the auxiliary grip component is fixed on the rear side surface of the auxiliary control connecting rod;
the handle of the auxiliary handle component is fixed on the lower side surface of the fourth bracket;
when the connecting rod for connecting the first bracket and the fourth bracket is vertical to the first bracket and the fourth bracket, the fourth bracket is in a stretching state;
when the connecting rod connecting the first bracket and the fourth bracket rotates backwards around the lower end of the connecting rod and is attached to the first bracket, the fourth bracket is in a retracted state;
when the fourth bracket is in a stretching state, the bolt of the handle of the auxiliary handle component can be inserted into or retracted out of the handle clamping seat of the auxiliary handle component, and the connecting rod for connecting the first bracket and the fourth bracket is forbidden or allowed to rotate relative to the fourth bracket.
Preferably, two avoidance holes are formed in the upper horizontal plane of the first bracket of the left guardrail;
when the connecting rod connecting the first type of support and the fourth type of support rotates backwards around the lower end of the connecting rod and is attached to the first type of support, the lower end of the grip cover shell of the auxiliary grip assembly and the front end of the grip clamping seat respectively extend into the two avoiding holes, and the fourth type of support is in a retracted state.
Preferably, the car top telescopic guardrail also comprises a third switch component;
the pin part and the jack part of the third switch component are respectively fixed at the front end of the first bracket of the
Preferably, the left guardrail further comprises a fifth bracket;
the upper horizontal plane of the front part of the first bracket is lower than the upper horizontal plane of the rear part;
the upper horizontal plane at the rear part of the first bracket of the left guardrail is connected with the lower side surface of the second bracket through at least two connecting rods;
at least two parallel guide rods are vertically fixed on the lower side surface of the fifth type bracket;
a guide hole is formed in the upper horizontal plane of the front part of the first type of bracket;
and the guide rods fixed on the lower side surface of the fifth bracket are correspondingly inserted into the guide holes.
Preferably, two avoidance holes are formed in the upper side face of the fifth type bracket;
when the guide rods of the fifth type of support are correspondingly inserted into the guide holes of the first type of support, the lower side surface of the fifth type of support is attached to the upper horizontal surface of the front part of the first type of support, the connecting rod for connecting the first type of support and the second type of support rotates forwards around the lower end of the connecting rod and is attached to the fifth type of support, the lower end of the handle cover and the front end of the handle clamping seat respectively extend into the two avoiding holes, and the car top telescopic guardrail is in a retracted state.
According to the telescopic car top guardrail, the left guardrail, the right guardrail, the rear upper guardrail and the rear lower guardrail form an enclosed area to protect a car top space; the left guardrail is the same as the right guardrail in structure and is symmetrically arranged, the car top telescopic guardrail is stretched and packed up by adopting a rotating structure, when the connecting rod is perpendicular to the first type support and the second type support of the left guardrail and the right guardrail, the car top telescopic guardrail is in a stretching state, and when the connecting rod rotates forwards around the lower end of the connecting rod to enable the second type support to be attached to the first type support, the car top telescopic guardrail is in a packing state. This flexible guardrail in sedan-chair top, through a anterior handle alright with control left side guardrail, the flexible of right side guardrail, it is flexible together to drive the rear portion guardrail simultaneously, the flexible guardrail in sedan-chair top is in when packing up or tensile state, the handle all is in the within range that can with the hand direct operation, just can accomplish the stretching of the flexible guardrail in sedan-chair top and pack up through controlling the handle in layer station side (outside the sedan-chair top), not only the elevator is little to the requirement in top layer space, locking and unblock are convenient moreover, the maintenance personnel operation degree of difficulty and the outside risk of sedan-chair top that drops have been reduced.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings needed to be used in the present invention are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural view of an embodiment of the telescopic car roof guardrail of the present invention;
FIG. 2 is a schematic view of a main grip assembly of an embodiment of the telescopic balustrade for a car roof according to the present invention;
fig. 3 is a schematic view of the car top telescopic guardrail according to the embodiment of the invention in a stretched state;
FIG. 4 is a schematic view of a retractable car top guard according to an embodiment of the present invention in a retracted state;
FIG. 5 is a schematic view of a roller assembly of an embodiment of the telescopic fence for a car roof of the present invention;
FIG. 6 is a schematic view of an embodiment of the telescoping guardrail on the ceiling of the present invention with the switch assembly installed;
FIG. 7 is a schematic view of a fourth bracket structure of an embodiment of the telescopic car top rail of the present invention;
FIG. 8 is a schematic view of a fifth bracket configuration employed in an embodiment of the telescopic car top rail of the present invention;
figure 9 is a schematic view of a fifth type of bracket in a retracted state in accordance with an embodiment of the telescopic car roof guardrail of the present invention.
Wherein the reference numerals are as follows:
numbering
Name (R)
Numbering
Name (R)
1
2
3
Rear
4
Rear
5
First kind of
6
Second type of
7
Third type of
8
Bracket of the fourth kind
9
Fifth type of
10
11
101
Handle of
102
103
104
105
106
107
109
12
13
14
Mounting
15
Roller assembly
16
17
18
Third switch assembly
19
Guide rod
Detailed Description
The technical solutions in the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
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